CN1144565C - Suction-mouth body of electric dust-collector and electric dust collector thereof - Google Patents

Abstract

To provide a suction port body to improve the cleaning efficiency with an east mechanism, to require no leak opening, and to reduce the rotation number of a rotary cleaning body even in a condition it is brought up. During cleaning, negative pressure in the vicinity of a first suction port 20 is secured by a first rotary blade 63 and a second rotary blade 64 positioned in front and rear ins the running direction of a suction port main body 11, and the floor face. By a suction air stream through an air suction opening 44, an air turbine 37 in a suction air path 43 is rotated to rotate the first rotation blade 63 and the second rotation blade 64 to sweep out dust on the floor. Cleaning is performed by efficiently sucking dust through a suction air path 34 from the first suction part 20 and the second suction port securing the negative pressure. When the lower face of a case body 15 comes off a prescribed distance from a face to be cleaned, the suction or amount through the first suction port 20 and the second suction part is increased and the suction amount through the suction opening 44 reduced. The rotation of the turbine 37 is reduced to enable to reduce the rotation speeds of the first rotation blade 63 and the second rotation blade 64.

Description

Inlet body of electric vacuum cleaner and electric vacuum cleaner

technical field

The present invention relates to a suction port body and an electric vacuum cleaner provided with an air turbine for rotationally driving a rotating cleaning body.

Background technique

Regarding the suction port body of such an electric vacuum cleaner provided with an air turbine, for example, structures disclosed in US Pat. No. 2,904,861 specification and Japanese Patent Laid-Open No. 1995-59685 are known.

The suction port body of the electric vacuum cleaner described in the above-mentioned U.S. Patent No. 2904816 specification is provided with a suction port between the suction chamber where the rotatable rotating cleaning body and the lower side of the suction port are provided and the connecting pipe connected to the hose or extension pipe. wind road. And between the suction port opened on the upper side and the connecting pipe, an air suction air path is provided, and an air turbine chamber is arranged in the air suction air path, in which a device that is rotated by the air suction air flow and rotates the rotating cleaning body is installed. Free-rotating flat air turbine. A valve body is provided at the confluence part of the suction air path and the suction air path, and the suction air path is opened and closed through the switching operation of the valve body to adjust the suction volume and suction volume.

However, with the suction port body of the conventional electric vacuum cleaner described in the US Patent No. 2904816 specification, there is only one rotating cleaning body, so it is impossible to fully sweep out, for example, lint or hair entangled on the carpet, and the cleaning performance cannot be improved.

However, it is known that the suction inlet body of a conventional electric vacuum cleaner has two rotating cleaning bodies arranged in the front and back directions of the moving direction in order to improve the cleaning performance.

Therefore, it is also considered to provide a plurality of rotating cleaning bodies in the suction port body of the conventional electric vacuum cleaner described in US Patent No. 2,904,816. However, since the rotary cleaning body is installed in the suction chamber facing the suction port for sucking dust, the opening area of the suction port is relatively large, and the air intake from the suction port is reduced, so that the two rotary cleaning bodies can not be rotated. sufficient torque required.

In addition, if only a plurality of rotating cleaning bodies are set in the suction port body of the traditional electric vacuum cleaner recorded in the US Patent No. 2904816 specification, it is impossible to realize the miniaturization of the suction port body, and it is not convenient to install it in narrow places such as between furniture. Clean up.

Again, adopt the suction port body of the electric vacuum cleaner described in the US Patent No. 2904816 specification, when the suction port body is lifted up, because the suction volume from the suction port increases, the suction volume from the suction port is reduced, so that the air The speed of the turbine is reduced. However, the intake air volume from the intake port is not reduced to such an extent that the air turbine is substantially stopped. On the other hand, if the ratio between the suction volume and the suction volume is set according to the requirement that the air turbine basically stops when lifting, the air turbine cannot get enough torque when cleaning.

On the other hand, the suction port body of the electric vacuum cleaner described in the Japanese Invention Patent Publication No. 1995-59685 is that the suction air path between the suction port and the communication pipe connecting the hose or the extension pipe is rotatably supported by a rotating shaft. A multi-blade, air turbine that rotates by drawing in airflow. Moreover, an endless belt is set between the pulleys at the end of the rotating shaft and the end of the rotating cleaning body, and the rotating cleaning body is rotated by the rotation of the air turbine. And a connected bypass air path is provided on the suction air path. In addition to the moving wheels, other wheels are pivotally supported on the movable member of the valve body having the opening and closing bypass air passage.

When the suction port faces the ground and the moving wheel is placed on the ground, the wheel is pushed into the housing by the ground, the valve body closes the bypass air passage, and the suction airflow from the suction port makes the air turbine rotate effectively and the rotary cleaning body rotation. When the moving wheel is lifted from the ground, the wheel protrudes downward to make the movable member move, and the valve body is used to open the bypass passage to leak air and reduce the speed of the air turbine.

However, when adopting the suction port body of the conventional electric vacuum cleaner described in the Japanese Invention Patent Publication No. 1995-59685, the suction air path through which dust flows and the suction air flow that rotates the air turbine are the same path. Therefore, dust is attached to the air turbine, so that the air turbine cannot rotate smoothly. And it is necessary to set the device for detecting the lifting of the suction port body and the valve body for opening and closing the air leakage port, which will cause the same problem as the traditional electric vacuum cleaner suction port body described in the above-mentioned US Patent No. 2904816 specification.

As mentioned above, the suction body of the traditional electric vacuum cleaner recorded in the specification of U.S. Patent No. 2904816 has only one rotating cleaning body, so the cleaning performance cannot be improved, and if only a plurality of rotating cleaning bodies are set, the small size of the suction body cannot be realized. It is not convenient to clean in narrow places such as between furniture. And if the suction volume and suction volume are set in order to obtain sufficient torque, the rotation speed of the air turbine cannot be sufficiently reduced when lifting.

However, if the structure described in the Japanese Invention Patent Publication No. 1995-59685 is adopted, special components need to be provided to open and close the air leakage port used to reduce the air turbine speed when the suction port body is lifted, the structure is complicated, the manufacture is inconvenient, and the cost is expensive. At the same time, dust will adhere to the cover that opens and closes the air leakage port, which will affect the action of the cover. Moreover, the suction air path through which the dust flows is the same path as the suction air flow that rotates the air turbine, so the dust will adhere to the air turbine, hindering the smooth rotation of the air turbine.

Contents of the invention

In view of the above-mentioned problems, the object of the present invention is to provide a suction port body of an electric vacuum cleaner that does not need to be provided with a member for opening and closing the air leakage port, has a simple structure, and can reduce the rotating speed of the rotating cleaning body in the state of lifting, and can also improve the cleaning efficiency by using an air turbine. The suction port body of the small electric vacuum cleaner with cleaning efficiency, and the electric vacuum cleaner equipped with the suction port body of these electric vacuum cleaners.

The technical solution 1 of the present invention is a suction port body of an electric vacuum cleaner, comprising: a housing with a plurality of groove-shaped cleaning bodies opening downwards located on the lower side opposite to the surface to be cleaned and located in the front and rear directions of the moving direction chamber, the air leakage port opened on the lower side between these cleaning body chambers and the air suction port opened outside the air leakage port; it is arranged on the housing, communicates with the air leakage port and passes through the suction port. The connecting pipe communicated with the suction port through the air flow path; the rotating cleaning bodies respectively rotatably arranged in the cleaning body chambers of the housing; the rotating cleaning bodies are rotatably arranged in the suction air path and are sucked into the airflow to make the rotary cleaning The body is used as an air turbine driven by rotation, and the air leakage port communicates with the communication pipe on the downstream side of the air turbine. And when cleaning, through the rotating cleaning body and the surface to be cleaned in the cleaning body chamber located in the front and rear of the moving direction, the negative pressure near the air leakage port on the lower side of the housing is ensured, and the air is passed through from the suction port. The suction air flow rotates the air turbine freely rotatable in the suction air passage, and rotates the rotating cleaning body, sweeps out the dust from the surface to be cleaned, and lifts the casing up to separate the lower side of the casing from the surface to be cleaned. When the cleaning surface is at a certain distance, the air leakage port on the lower side of the housing opens, the suction volume from the air leakage port increases, and the suction volume from the suction port decreases, the speed of the air turbine decreases, and the speed of the rotating cleaning body decreases .

The technical solution 2 of the present invention is a suction port body of an electric vacuum cleaner. On the suction port body of the electric vacuum cleaner of the technical solution 1, the housing is provided with a connecting air passage for connecting the cleaning body chamber with the air leakage port. And the dust in the cleaning body chamber swept out by the rotating cleaning body is easily sucked into the air leakage port through the connecting air path, and the air path from the air leaking port to the connecting pipe is also used as the dust suction air path, so the structure is simple.

The technical solution 3 of the present invention is a suction port body of an electric vacuum cleaner, on the suction port body of the electric vacuum cleaner of the technical solution 2, the connecting air passage is a groove-shaped structure opening downward. And when cleaning, the groove-shaped connecting air passage constitutes the air passage that makes the cleaning body chamber communicate with the suction port through the cleaned surface and the lower side of the housing, so that the dust in the cleaning body chamber that is swept out by the rotating cleaning body passes through the concave. The slot-shaped connecting ventilation passage smoothly sucks the air into the leakage port without being blocked in the connecting ventilation passage.

The technical solution 4 of the present invention is a suction port body of an electric vacuum cleaner, comprising: a casing having a plurality of groove-shaped cleaning bodies opening downwards located on the lower side opposite to the surface to be cleaned and located in the front and rear directions of the moving direction chamber and the suction port that is opened outside these cleaning body chambers; the connecting pipe that is located on the housing, communicates with the cleaning body chamber and communicates with the suction port through the suction air path; respectively rotatably equipped with The rotating cleaning body arranged in each cleaning body chamber of the housing; in a plan view, it overlaps with the rotating cleaning body above the rotating cleaning body, and passes through the shaft body arranged between the cleaning body chambers, the axial direction being the up-down direction And the air turbine that is rotatably arranged in the suction air path and makes the rotating cleaning body rotate and drive in the horizontal direction is disc-shaped by the suction airflow, and the air leakage port is communicated with the communicating pipe at the downstream side of the air turbine. Since the air turbines are arranged in the axial direction of the air turbine shaft body in the vertical direction between a plurality of rotating cleaning bodies, the air turbines rotated by the effect of the suction air flow overlap with each rotating cleaning body in the vertical direction, so even if In order to improve the cleaning performance, a plurality of rotating cleaning bodies driven by the air turbine can be provided, and the front and rear dimensions in the moving direction can also be reduced, and miniaturization can be easily realized.

The technical solution 5 of the present invention is a suction port body of an electric vacuum cleaner. On the suction port body of the electric vacuum cleaner of the technical solution 4, the bearing supporting the shaft body is disposed below the upper end of the rotating cleaning body between the cleaning body chambers. . Since the bearing for supporting the shaft body of the air turbine is provided below the upper end of the rotating cleaning body, the dimension in the vertical direction can be reduced and miniaturization can be easily realized.

The technical solution 6 of the present invention is a suction port body of an electric vacuum cleaner. On the suction port body of the electric vacuum cleaner of the technical solution 4 or 5, the transmission device that transmits the rotary drive of the air turbine to the end of the rotating cleaning body is arranged on the Between the cleaning body chambers, it is arranged at a position below the upper end of the rotating cleaning body.

The technical solution 7 of the present invention is a suction port body of an electric vacuum cleaner, which is on the suction port body of the electric vacuum cleaner of the technical solution 4, and also includes that the cleaning body chamber is located between the cleaning body chamber and the air turbine. A transmission device that sucks in the opposite side of the air passage, transmits the rotational drive of the air turbine to the rotary cleaning body, and makes the rotary cleaning body rotationally drive.

The technical solution 8 of the present invention is a suction port body of an electric vacuum cleaner, which is on the suction port body of the electric vacuum cleaner of the technical solution 4, and also includes a turbine chamber equipped with an air wheel. An intake air supply air path for supplying an intake air flow to the turbine chamber is provided on a side opposite to the suction air path of the turbine.

The technical solution 9 of the present invention is an electric vacuum cleaner, which has the suction port body of any one of the technical solutions 1 to 8 and a vacuum cleaner body connected to the suction port body of the electric vacuum cleaner. Any one of the technical solutions 1 to 8 that can improve the cleaning efficiency by using an air turbine because there is no need to set the components for opening and closing the air leakage port, the structure is simple, the rotating speed of the rotating cleaning body can be reduced in the lifting state, the volume is small, and the air turbine can also improve the cleaning efficiency. The suction port of the electric vacuum cleaner can improve the cleaning performance.

Description of drawings

Fig. 1 is a partially cutaway plan view showing an embodiment of a suction port body of an electric vacuum cleaner according to the present invention.

Fig. 2 is its bottom view.

Fig. 3 is its rear view.

Fig. 4 is a front sectional view thereof.

Fig. 5 is a side sectional view thereof.

Fig. 6 is a side cross-sectional view showing the relationship between the drive conversion device and the first rotating blade and the second rotating blade.

Fig. 7 is a sectional view showing the air turbine thereof.

Fig. 8 is a bottom view of the air turbine.

Fig. 9 is a top view of the air turbine.

Fig. 10 is a perspective view of a first rotating blade.

Fig. 11 is a cross-sectional view of the first rotating blade.

FIG. 12 is an explanatory diagram illustrating a state in which dust is moved by the rotation of the rotary blade.

Detailed ways

The structure of an embodiment of the suction port body of the electric vacuum cleaner of the present invention will be described below with reference to the accompanying drawings.

In Fig. 1 to Fig. 6, 11 is the suction port main body that is horizontally elongated with respect to the advancing direction, on this suction port main body 11, with the lower body case 12 that synthetic resins such as acrylonitrile butadiene styrene resin are made and The upper body shell 13 of the same material fixed on the upper part of the lower body shell 12 is clamped and joined with the buffer pad 14 along the peripheral surface including the front surface of the lower body shell 12 and the upper body shell 13 to form a rectangular shell. 15.

Ribs 17 are formed substantially vertically on the upper side of the lower body case 12 . The groove-shaped first cleaning body chamber 18 is defined on the advancing direction side, that is, on the front side by the rib 17 and has a lower side opening that is substantially horizontally elongated. The groove-shaped second cleaning body chamber 19 is defined on the rearward side, that is, on the rear side, and has a lower side opening in a horizontally elongated shape substantially in the left-right direction. In the lower body shell 12, the first suction chamber 21 is defined on the side of the approximate center between the first cleaning body chamber and the second cleaning body chamber 19 by the rib 17, and the first suction chamber 21 is opened on the lower side. The 1st suction port 20 that also has the air leakage port effect divides the 1st transmission chamber 22 on the other side of the roughly central part, and divides the 2nd suction chamber 24 at the rear side roughly central part, and the 2nd suction chamber 24 is in The 2nd cleaning body chamber 19 upper side substantially central part has the 2nd suction port 23 that also has air leakage port effect, and communicates with the 1st suction chamber 21, in the part that is positioned at the other side than the 1st transmission chamber 22 The second transmission chamber 25 is divided. The opening area of the first suction port 20 is larger than the opening area of the second suction port 23 .

On the lower side of the lower body shell 12, a groove-shaped communication recess 27 is provided on the end side opposite to the first suction port 20, and the communication recess 27 becomes a connection between the first cleaning body chamber 18 and the second cleaning body chamber. 19 communicates with the communication passage, and is provided with the groove-shaped communication air passage 28 that makes the first cleaning body chamber 18 communicate with the first suction port at the same time.

The lower side of the second transmission chamber 25 is opened downward, and a detachable closing plate 29 is attached to the opening by a mounting member 30 .

At the rear center of the housing 15, facing the second suction port 23, the rotating shafts 33, 33 of the connecting pipe 32 are supported by the lower housing body 12 and the upper housing body 13, and can freely rotate at a specified angle in the up and down direction. The first suction chamber 21 and the second suction chamber 24 communicate with the communication pipe 32 to constitute a suction air passage 34 . A rear end portion of the communication pipe 32 protrudes rearward and outward from the suction port body 11 , and a front end portion of a curved connection pipe 35 is rotatably fitted to the rear end portion. The connecting pipe 35 is detachably connected to a hose pipe through an extension pipe not shown, and further connected to a main body of the electric vacuum cleaner not shown.

In addition, the distance between the second suction port 23 with an opening area smaller than that of the first suction port 20 and the communication pipe 32 is closer than the first suction port 20, so the suction force from the first suction port 20 is the same as that from the second suction port. The 23 has about the same suction power.

On the other hand, a central housing 39 partitioning a turbine chamber 38 in which a rotatable air turbine 37 serving as a flat drive unit is housed is attached and fixed to a substantially central portion of the housing 15 . The central case 39 is composed of a substantially funnel-shaped lower case 40 with a large diameter at the top and a small diameter at the bottom, and an upper case 41 that closes the upper portion of the lower case 40 .

On the center casing 39 , an intake air supply air passage 43 a in the circumferential direction is formed on the outer peripheral surface, with one end expanding in the circumferential direction in a trumpet shape and the other end opening to the turbine chamber 38 . The air intake air passage 43 a spirally communicates with the turbine chamber 38 in a state where the width gradually narrows and the cross-sectional area gradually decreases, and supplies the intake airflow to the air turbine 37 in a spiral form. A part of the upper side of the intake air supply air passage 43 a reaching the air turbine chamber 38 , that is, the upper side of the part of the intake air supply air passage 43 a located on the front side of the housing 15 is formed by the upper body casing 13 . In addition, one end of the intake air supply duct 43a having a trumpet-shaped opening faces an intake port 44 formed on two surfaces, the substantially vertical rear side that becomes the rear portion of the upper body casing 13, and the upper side connected to the rear side. and connected. The suction port 44 is formed by piercing a plurality of small-diameter holes, and is opened on one side of the communication pipe 32 .

Form the communication hole 45 on the wall surface opposite to the 2nd suction chamber 24 of the center casing 39, form the communication hole 45 with the 2nd suction chamber from the suction port 44 through the air suction supply air passage 43a, the turbine chamber 38, and the communication hole 45. Suction air path 43 . Since the communication hole 45 faces the opening of the second suction chamber 24, the first suction port 20 communicates with the opening through the suction air passage 43 from the turbine chamber 38 to the communication pipe 32, that is, the suction air passage 34 on the downstream side of the air turbine 37. , while the second suction port 23 opens directly.

A bearing mounting rib 48 to which the first bearing 47 is mounted is provided at substantially the center of the lower surface of the upper case 41 of the center case 39 . A bearing attachment rib 50 for attaching a second bearing 49 coaxial with the first bearing 47 is provided in an approximately central portion of the upper surface of the lower case 40 of the center case 39 .

As shown in FIGS. 7 to 9 , the air turbine 37 is provided with a straightening plate 54 expanding toward one end side on the peripheral surface of a substantially cylindrical shaft support portion 53 into which a rod-shaped shaft body 52 is inserted. A plurality of curved wall-shaped wind receiving plates 55 , 55 are protruded substantially radially on the surface of the other end near the periphery of the rectifying plate 54 . An air turbine side pulley 56 is integrally formed at an end portion of the shaft body 52 on the side where the wind receiving plates 55 , 55 are provided.

The air turbine side pulley 56 of the air turbine 37 protrudes from the lower end of the center housing 39 to face the first transmission chamber 22 . Both end portions of the shaft body 52 are supported by the first bearing 47 and the second bearing 49 in a state where the axial direction is substantially in the vertical direction. The air turbine 37 is rotatably supported in the turbine chamber 38 . The center housing 39 is housed and fixed between the housings 15 in a state where the second bearing 49 is located approximately in the center between the first cleaning body chamber 18 and the second cleaning body chamber 19 .

In addition, driven rear wheel chambers 59 for rotatably supporting driven rear wheels 58 are formed on both sides of the communication pipe 32 of the lower body shell 12 . Driven front wheel chambers 61 that rotatably pivotally support driven front wheels 60 are formed on both ends of the front portion.

On the other hand, in the 1st cleaning chamber 18 and the 2nd cleaning chamber 19, the rotatable 1st rotating blade 63 and the 2nd rotating blade 64 which are rotating cleaning bodies are provided, respectively. The second rotary blade has a mandrel 66 made of, for example, aluminum alloy, and a helical groove 65 that rotates clockwise in the axial direction is provided on the outer peripheral surface of the mandrel 66 . In the groove portion 65 of the mandrel 66, a plurality (for example, four pieces) of sweeping-out devices as flexible (for example, made of soft polyvinyl chloride) cleaning bodies, that is, blade portions 67, protrude from the outer peripheral surface to form The wall-shaped state engages spirally. A thick base portion 69 that engages with the groove portion 65 of the mandrel 66 is formed on one side edge in the longitudinal direction of the elongated flat plate portion 68 of the blade portion 67 .

The 1st rotary blade 63 then as shown in Figure 10 and Figure 11, each alternately arranges a plurality of (such as 2) spirally on its outer peripheral surface as flexible, has the mopping floor of the sweeping body of fluff 70 on one side. The device, that is, the cloth blade part 71, and the cleaning device as a flexible, substantially Y-shaped cleaning body in cross section, that is, the double blade part 72. The cloth blade part 71 is made of polyester, for example, and a thick soft polyvinyl chloride base part 69 is formed on one side edge of the elongated plate-like raised cloth 73 in the longitudinal direction with the fluff 70 on one side. The double blade portion 72 is branched from the plate portion 68 of the blade portion 67 and has a substantially Y-shaped cross section. The length dimension of the cloth blade part 71 protruding from the mandrel 66 is larger than the length dimension of the double blade part 72 protruding from the mandrel 66 . Therefore, when cleaning the floor, only the cloth blade portion 71 is in contact with the floor, and has the effect of wiping the floor.

In addition, pulleys 75 are integrally provided on the mandrel 66 at one end of the first rotating blade 63 and the second rotating blade 64 . Moreover, the pulleys 75, 75 of the first rotating blade 63 and the second rotating blade are located in the second transmission chamber 25, and the shaft parts 76, 76 rotatably arranged at both ends of the axial direction are respectively connected with the bearings 77 arranged on the housing 15. , 77 fit, supported by free rotation.

The outer diameter of the first rotating blade 63 is smaller than that of the second rotating blade 64 , and the lower ends of both of them protrude slightly downward from the openings on the lower sides of the first cleaning body chamber 18 and the second cleaning body chamber 19 . In addition, only the front end portion of the cloth blade portion 71 of the first rotating blade 63 and the second rotating blade 64 protrudes below the ground contact surface formed by the driven front wheels 60 , 60 and the driven rear wheels 58 , 58 .

On the other hand, a transmission device, that is, a drive conversion device 79 is provided in the first transmission chamber 22 . As shown in FIGS. 1, 4, and 6, the drive conversion device 79 is rotatably supported in a case 80 provided on the end side of the first transmission chamber 22, and has a substantially rod-shaped shaft whose axial direction is in the downward direction. The first rotating shaft 81 . At the lower end of the first rotating shaft 81, a first pulley 83 is provided facing the first transmission chamber 22, and a first endless belt as a transmission device is spanned between the first pulley 83 and the air turbine side pulley 56 of the air turbine 37. 82a. At the upper end of the first rotating shaft 81, a first bevel gear 84a is provided.

In the housing 80 , a substantially rod-shaped second rotation shaft 85 and a third rotation shaft 86 , which are substantially vertically parallel and rotatable along the lateral length direction of the casing 15 , are provided. One end of the second rotating shaft 85 is provided with a first bevel gear 84 b that meshes with the first bevel gear 84 a of the first rotating shaft 81 . The other end of the second rotating shaft 85 is provided with a second pulley 87 facing the second transmission chamber 25 . A first gear 88a is provided at a portion of the second rotating shaft 85 that is shifted toward one end from the middle portion. At one end of the third rotation shaft 86, a second gear 88b that meshes with the first gear 88a of the second rotation shaft 85 is provided. At the other end of the third rotating shaft 86, a third pulley 89 facing the second transmission chamber 25 is provided. A second endless belt 82 b serving as a transmission device is stretched obliquely between the second pulley 87 of the second rotating shaft 85 and the pulley 75 of the first rotating blade 63 . A third endless belt 82 c as a transmission device is stretched substantially horizontally between the third pulley 89 of the third rotating shaft 86 and the pulley 75 of the second rotating blade 64 .

As shown in Figure 6 again, the central position of the second rotating shaft 85 is more biased towards the second rotating blade 64 side than the intermediate position between the first rotating blade 63 and the second rotating blade 64, that is, the second rotating shaft located at the top. 85 and the first rotating blade 63 on which an endless belt is obliquely spanned between the second rotating shaft 85 and the second rotating shaft 85 is relatively long. The third rotating shaft 86 is positioned substantially horizontally with respect to the second rotating blade 64 with the endless belt spanning substantially horizontally between the third rotating shaft 86 , and the distance between the third rotating shaft 86 and the second rotating blade 64 is short.

The rotation of the air turbine 37 rotates the first rotating shaft 81 via the first endless belt 82a, and this rotation rotates the second rotating shaft 85 via the first bevel gear 84a and the second bevel gear 84b. The rotation of the second rotation shaft 85 causes the third rotation shaft 86 to rotate in the opposite direction with respect to the second rotation shaft 85 through the first gear 88 a and the second gear 88 b meshing with each other. In addition, the first rotating vane 63 is rotated in the forward direction relative to the advancing direction of the suction port body 11 via the second endless belt 82b. The second rotating vane 64 then rotates in the opposite direction relative to the advancing direction of the suction port body 11, that is, the two rotate inwardly relative to each other. The first rotating blade 63 rotates toward the fluff 70 side of the cloth blade portion 71 .

The operation of the above-mentioned embodiment will be described below.

When cleaning, the suction port main body 11 is connected to the main body of the electric vacuum cleaner (not shown) through an extension pipe and a hose. Then, push the end of the flexible pipe by the end of the extended pipe side while holding the flexible pipe, so that the suction port body 11 moves back and forth while contacting the surface to be cleaned, that is, the ground.

Due to the suction force of the electric vacuum cleaner body, air is sucked from the suction port 44 and also sucked from the first suction port 20 and the second suction port 23 . At this time, the suction port main body 11 is placed on the ground, and the first suction port 20 is located between the first rotating blade 63 and the second rotating blade 64 . Therefore, the ground is closed by the first rotating blade 63 and the second rotating blade 64, and the negative pressure on the lower surface of the suction port body 11 increases. The second suction port 23, which is closer to the first suction port 20 than the communication pipe 32, opens in the second cleaning body chamber 19, so the air path resistance at the second rotating blade 64 increases. And its opening area is smaller than the opening area of the first suction port 20 . Therefore, the suction force from the first suction port 20 is the same as the suction force from the second suction port 23 . Thereby, the ratio between the suction amount from the first suction port 20 and the second suction port 23 of the same degree and the suction amount from the suction port 44 is due to the increase of the negative pressure on the lower side of the suction port body 11 facing the ground. Thus, the proportion of the air intake from the air intake port is increased.

When the ground is a carpet with long piles, etc., the first suction port 20 facing the ground is blocked. Thereby, compared with the negative pressure on the lower side of the suction port body 11 when the ground is a floor, the negative pressure on the lower side of the suction port body 11 when the ground is a carpet is larger. At this time, the suction volume from the suction port 44 increases.

The air sucked in from the air inlet 44 passes through the trumpet-shaped air intake supply air passage 43 a whose cross-sectional area gradually decreases while being rectified, and reaches the turbine chamber 38 in a spiral shape. The swirl-shaped intake airflow rotates the air turbine 37 at a speed proportional to the intake air volume. This rotational driving force is transmitted to the drive conversion device 79 via the first endless belt 82a. The drive conversion device 79 converts the rotational drive with the vertical axis as the axis into two rotational drive forces with the horizontal direction as the axis. Furthermore, the first rotating blade 63 and the second rotating blade 64 are rotated in opposite directions to each other at a speed proportional to the intake air amount via the second endless belt 82b and the second endless belt 82c. The dust 90 is swept out from the ground by the rotation of the first rotating blade 63 and the second rotating blade 64 . The dust 90 swept out in the first cleaning body chamber 18 is sucked in from the first suction port 20 through the communication air passage 28 . The dust 90 located in the second cleaning body chamber 19 is directly inhaled from the second suction port 23 . In addition, the suction airflow flowing into the pulley chamber 38 flows into the communication pipe 32 from the second suction chamber 24 through the communication hole 45 .

The first suction port 20 is located on the spiral direction side of the first rotating blade 63 . Therefore, as shown in FIG. 12 , the direction in which the dust 90 in the first cleaning body chamber 18 is sucked by the suction force is the same direction as the spiral direction in the rotating state, that is, the direction guided by the cloth blade portion 71 and the double blade portion 72 . Thereby, the dust 90 swept out from the ground is sucked into the first suction port 20 through the air passage 28 smoothly due to the suction force and the effect of the cloth blade portion 71 and the double blade portion 72 . In addition, the second suction port 23 opens substantially at the center of the second cleaning chamber 19 , and the second rotating blade 64 rotates in the opposite direction to the helical direction of the first rotating blade 63 . Therefore, the direction in which the suction force sucks in and the direction in which the blade portion 67 guides are opposite to each other. Therefore, part of the dust 90 that has not been sucked in from the second suction port 23 moves in the direction away from the second suction port 23 on the blade portion 67 . Then, it is guided to the first cleaning chamber 18 through the communication recess 27 that is located on the opposite side of the first suction port 20 and communicates with the second cleaning body 19 and the first cleaning body chamber 18 at the end at the guided side. , and is sucked into the first suction port 20 through the communicating air passage 28 .

When the ground is a floor, etc., only the cloth blade portion 71 of the first rotating blade 63 positioned at the front side of the moving direction is in contact with the floor, so that the dust 90 on the floor to the edge of the wall can be swept out, and the dust 90 can be swept out to the edge of the wall at the same time. The floor is wiped clean.

The opening area of the air inlet 44 is smaller than that of the first air inlet 20 and the second air inlet 23 , and the air turbine 37 serving as air passage resistance is provided in the air inlet air passage 43 . Therefore, the suction force from the first suction port 20 and the second suction port 23 is reduced, but the suction from the first suction port 20 and the second suction port 23 is not nearly impossible. Moreover, since the dust 90 is swept out due to the rotational driving of the first rotating blade 63 and the second rotating blade 64, it is easy to suck it, and it is almost impossible to cause the dust to be insufficiently sucked due to a decrease in the suction force.

When the hose is placed on the ground in order to move furniture, the lower side of the suction port body 11 is separated from the ground, and when the first suction port 20 and the second suction port 23 are blocked by sucking large objects, or the first rotation When the blade 63 and the second rotating blade 64 are entangled with lint, hair, etc., they must be removed. For this reason, when the suction port body 11 is lifted from the ground, the negative pressure on the lower side of the suction port body 11 decreases, and the suction volume from the first suction port 20 and the second suction port 23 and the suction volume from the suction port 44 The ratio between them is such that the ratio of the intake air volume from the first suction port 20 and the second suction port 23 increases. Further, on the downstream side of the air turbine 37 from the turbine chamber 38 of the suction air passage 43 to the communication pipe 32, the first suction port 20 communicates and opens via the suction air passage 34, while the second suction port 23 directly opens. Therefore, the ratio of the intake air volume from the first suction port 20 and the second suction port 23 increases, and the intake air flow in the intake air passage 43 generated by the intake air through the intake port 44 is greatly reduced. Accordingly, the rotational speed of the air turbine 37 is reduced or stopped, and the rotational speeds of the first rotating blade 63 and the second rotating blade 64 are also reduced or stopped.

When the first rotating blade 63 and the second rotating blade 64 are to be removed in order to remove lint or hairs wound around the first rotating blade 63 and the second rotating blade 64, first remove the mounting member 30 and remove the closing plate 29. . Then, with the shaft portion 76 on the side where the pulley 75 is not provided as a fulcrum, the pulley 75 side is moved downward, and the shaft portion 76 on the pulley 75 side is removed from the bearing 77 . Next, the pulley 75 is removed from the second endless belt 82b and the third endless belt 82c, and the shaft portion 76 serving as a fulcrum is removed from the bearing 77 . Do the opposite when installing.

With the above-mentioned embodiment, when cleaning, the first rotating blade 63 and the second rotating blade 64 arranged in the first cleaning body chamber 18 and the second cleaning body chamber 19 located before and after the moving direction of the suction port body 11 and the The negative pressure near the first suction port 20 between the first cleaning body chamber 18 and the second cleaning body chamber 19 on the lower side of the housing 15 is ensured on the ground. Therefore, the suction air flow from the suction port 44 rotates the air turbine 37 rotatably provided in the turbine chamber 38 in the suction air passage 43, and rotates the first rotating blade 63 and the second rotating blade 64, and the dust 90 Sweep from the ground. And the dust 90 is effectively sucked away from the first suction port 20 and the second suction port 23 with sufficient negative pressure through the suction air path 34 . In addition, when the housing 15 is lifted so that the lower side of the housing 15 is separated from the surface to be cleaned by a certain distance, the first suction port 20 and the second suction port 23 on the lower side of the housing 15 are opened. Therefore, the suction amount from the first suction port 20 and the second suction port 23 increases, while the suction amount from the suction port 44 decreases. Accordingly, the rotation speed of the air turbine 37 can be reduced, and the rotation speeds of the first rotating blade 63 and the second rotating blade 64 can be reduced.

Therefore, when it is placed on the ground during cleaning, it is closed by the two rotating blades 63, 64 and the ground, and the negative pressure near the two suction ports 20, 23 can be ensured, so it can be effectively cleaned. And because when the suction inlet body 11 is lifted, the rotating speed of the air turbine 37 is reduced, and the rotating speed of each rotating blade 63,64 is reduced, so there is no need to provide an opening and closing device for opening and closing the air leakage port, and it can be easily lowered with a simple structure. The rotational speed of each rotating blade 63, 64 is easy to achieve size reduction and weight reduction. The frictional wind noise caused by the rotation of the rotating blades 63 and 64 can also be reduced.

Since the first cleaning body chamber 18 communicates with the first suction port 20 through the communicating air passage 28, the dust 90 swept out can be easily sucked from the first suction port 20 having sufficient negative pressure. That is, the simple structure realizes the double function, which not only has the function of the leak port to reduce the rotation speed of the air turbine 37 when the suction port body 11 is lifted, but also has the function of the suction port to suck the dust 90 .

Since the communication air path 28 is grooved, it prevents the dust 90 from being caught, and facilitates the removal of the dust 90 and the like, compared with the case of forming a cylindrical shape with a pipe or the like, which is convenient for maintenance. Of course, this communicating ventilation path 28 may also employ the structure which connects the 1st cleaning body chamber 18 and the 1st suction chamber 21 using a pipe.

Since the first cleaning body chamber 18 is communicated with the first suction port 20 with the connecting air passage 28, so when cleaning different types of surfaces to be cleaned, such as floors, tatami mats, carpets, etc., the first suction port 20 and the connecting air passage 28 The occlusion state of the valve is different, so the negative pressure is different. Therefore, the ratio of the suction volume from the first suction port 20 and the second suction port 23 to the suction volume from the suction port 44 is variable. When cleaning the floor, the amount of suction from the air inlet 44 decreases, and the rotating speed of each rotating blade 63, 64 decreases. increase. Therefore, there is no need to install an additional ground detection device, and the rotation speed of each rotating blade 63, 64 can be changed according to different grounds with a simple structure, which can further improve cleaning workability and cleaning efficiency.

And since the second suction port 23 is opened on the downstream side of the communication pipe 32 than the communication hole 45 that communicates the suction air passage 43 with the communication pipe 32, when the suction port body 11 is lifted, the air from the second suction The suction resistance of the port 23 is smaller than the suction resistance leading from the suction port 44 to the communication hole 45 through the turbine chamber 38, and is located on the downstream side. Therefore, the second suction port 23 plays the same role as the leak port, and it is easy to suck air from the second suction port 23, so the rotation speed of the air turbine 37 can be further reduced, and the rotation speed of each rotating blade 63, 64 can be safely reduced.

In addition, the clockwise helical first rotating blade 63 and the second rotating blade 64 rotate inwardly in the opposite direction in which the spiral direction is reversed, and the first suction port 20 is opened when the first rotating blade 63 is in the rotating state. One side of the helical direction of the first suction port 20, the communication recess 27 on the helical direction side of the second rotating blade 64, the first cleaning body chamber 18 and the second cleaning body chamber 19 are communicated. Therefore, the direction inhaled by the suction force of the first suction port 20 and the direction guided by the cloth blade portion 71 and the double blade portion 72 of the first rotating blade become the same direction, and the dust 90 swept out from the ground is due to the suction force and the cloth structure. Due to the function of the vane portion 71 and the double vane portion 72 , it is smoothly sucked into the first suction port 20 through the communication air passage 28 . Again, due to the blade portion 67 of the 2nd cleaning body chamber 19, the dust 90 moved to the direction away from the 2nd suction port 23 is guided to the 1st cleaning body chamber 18 through the communication recess 27, and is sucked from the communication air passage 28. The first suction port 20. Therefore, it is possible to prevent the dust 90 from being inhaled and remaining in each cleaning body chamber 18, 19, which not only improves the cleaning effect, but also reduces the pollution of the dust 90 to the lower side of the suction port body 11, and reduces the number of times of maintenance.

Since the communication concave portion 27 is groove-shaped, it can prevent the dust 90 from being caught, facilitate the removal of the dust 90, etc., and facilitate maintenance like the communication air passage 28, compared with the case of forming a cylindrical shape with a tubular object. Of course, this communication recessed part 27 can also adopt the structure which connects the 1st cleaning body chamber 18 and the 2nd cleaning body chamber 19 using a pipe.

In addition, the shaft body 52 of the scroll flat air turbine 37 that can obtain a large torque is located between the first cleaning body chamber 18 and the second cleaning body chamber 19, and the second bearing 49 that supports the shaft body 52 It is provided in the position below the upper end of each rotary blade 63,64 between the 1st cleaning body chamber 18 and the 2nd cleaning body chamber 19. Therefore, the air turbine 37 is located above the 1st cleaning body chamber 18 and the 2nd cleaning body chamber 19 in the overlapping state. Thereby, can not only obtain the large torque required for the rotational driving of a plurality of, for example, two rotating blades 63,64 for improving the cleaning effect, but also reduce the space before and after the moving direction required for the air turbine 37, And the space in the vertical direction required for the second bearing 49 serving as a bearing is provided, and miniaturization can be realized. In addition, the air turbine 37 has a rectifying plate 54 extending toward one end, so the first bearing 47 as a bearing can be installed in the space on the expanding side of the rectifying plate 54, and further miniaturization can be realized.

The first suction port 20 opens toward one end from approximately the center portion, and forms the first suction chamber 21 adjacent to and communicating with the second suction port chamber 24 facing the communication pipe 32 above, and is provided at the approximately center portion of the casing 15. The central housing 39 houses the air turbine 37 . Therefore, the suction air passage 34 from the first suction port 20 and the suction air passage 43 passing through the turbine chamber 38 from the suction port 44 are not arranged vertically, so the dimension in the vertical direction can be reduced, and further miniaturization can be realized.

On the other hand, since the cloth blade portion 71 is provided on the first rotating blade 63, the floor can be wiped up to the edge of the wall. And by setting double blade part 72 to make up for the blade part 67 sweeping out dust effect that reduces because of setting cloth blade part 71, so the sweeping effect when suction inlet body 11 advances and retreats is roughly the same, can further improve cleaning efficiency.

And because the outer diameter of the first rotating blade positioned at the front side is smaller than the outer diameter of the second rotating blade, the first rotating blade can be arranged at the foremost part in the casing. The distance between the position where the first rotary blade touches the ground and the wall can be reduced, and the cleaning can be carried out to the edge of the wall.

In addition, the second rotating shaft 85 on which the second endless belt 82b is obliquely spanned between the first rotating blade 63 and the second rotating blade 64 at the middle position between the first rotating blade 63 and the second rotating blade 64 has a longer distance. Location. And the 3rd rotating shaft 86 that bridges the 3rd endless belt 82c substantially horizontally between the 2nd rotating blade 64 is positioned at the 2nd rotating blade 64 side distance of the intermediate position between the 1st rotating blade 63 and the 2nd rotating blade 64. shorter position. Therefore, it is possible to prevent the rotation of the first rotating blade 63 and the second rotating blade 64 from causing the first rotating blade 63 and the second rotating blade 64 to collide with the lower sides of the first cleaning body chamber 18 and the second cleaning body chamber 19. The removal is hindered by the edge of the opening, so that the attachment and detachment of the first rotating blade 63 and the second rotating blade 64 are facilitated.

In addition, the drive of the air turbine 37 is transmitted to each rotating blade 63, 64, that is, the first endless belt 82a and the drive conversion device 79 are isolated between the first cleaning body chamber 18 and the second cleaning body chamber 19. between the side opposite to the suction air path 43. Therefore, the size in the vertical direction can be reduced, and further miniaturization can be realized. And it is isolated from the suction air passage 34, and the power is transmitted to the ends of the first rotating blade 63 and the second rotating blade 64 through the drive conversion device 79 through the second endless belt 82b and the third endless belt 82c. Therefore, the first endless belt 82a, the drive conversion device 79, the second endless belt 82b and the third endless belt 82c as transmission devices will not be polluted by the inhaled dust 90, which is convenient for maintenance.

Also, the suction supply air path 43a that spirally supplies the suction airflow to the scroll displacement type air turbine 37 is the suction wind at the first suction port 20 communicating with the first cleaning body chamber 18 located on the front side in the moving direction. The opposite side of road 34 is formed. Therefore, the suction air path 34 and the air intake air path 43a do not overlap, and further miniaturization is possible.

The air intake port 44 of the intake air supply duct 43a is opened on the side where the communication pipe 32 leads out, that is, at the rear. Therefore, the suction port 44 is not blocked by walls, furniture, curtains, etc. during cleaning, and the air turbine 37 can be rotated more efficiently. The space used for the shaft support communication pipe 32 can also be effectively utilized, and the swirl-shaped suction air flow can be supplied to the turbine chamber 38 while being rectified, so that the driving torque of the air turbine 37 can be further increased and the size can be reduced.

In addition, the intake port 44 is opened at a position that becomes a substantially vertical plane of the casing 15 . Therefore, it is possible to prevent the fine dust 90 in the air from accumulating on the suction port main body 11 to block the suction port 44 , suppress the reduction of the suction efficiency, and effectively rotate the air turbine 37 .

Furthermore, the intake port 44 is opened on the side where the communication pipe 32 leads out, that is, at the rear. Therefore, the suction port 44 is not blocked by walls, furniture, curtains, etc. during cleaning, and the air turbine 37 can be rotated more efficiently. The air intake supply air passage 43a can also be formed effectively by using the space used for the shaft support communication pipe 32, and the swirl-shaped intake air flow can be supplied to the turbine chamber 38 while being rectified, so that the driving torque of the air turbine 37 can be further increased and the size can be reduced.

In addition, the intake port 44 is opened at a position that becomes a substantially vertical plane of the casing 15 . Therefore, it is possible to prevent the fine dust 90 in the air from accumulating on the suction port main body 11 to block the suction port 44 , suppress the reduction of the suction efficiency, and effectively rotate the air turbine 37 .

In order to supply the suction airflow swirlingly to the air turbine 37 in the turbine chamber 38 from the suction port 44 that is not blocked by walls, furniture, curtains, etc., the suction air supply air passage 43a is opened on the front side of the turbine chamber 38 and flows from the suction to the air turbine 37 in the turbine chamber 38. The air port 44 gradually narrows to form a connected trumpet shape with an interference function. Therefore, with a simple structure, the intake air supply air path 43a that gradually reduces the opening area reaching the turbine chamber 38 can rectify the intake air flow, and at the same time reduce the frictional wind noise of the air turbine 37 and reduce noise.

The above-mentioned embodiment is not limited to the canister type electric vacuum cleaner, and is also applicable to an upright electric vacuum cleaner in which the suction port body 11 is directly formed on the lower side of the electric vacuum cleaner body, and other self-propelled vacuum cleaners in which the body of the electric vacuum cleaner and the suction port body 11 are integrated. Electric vacuum cleaners, etc.

A valve body or a gate etc. which can continuously adjust the opening degree and change the rotational speed of each rotating blade 63, 64 can also be additionally set in the air suction air path 43.

On the other hand, as the rotary cleaning body, in addition to the rotary blades 63 and 64, a rotary brush with fluff provided in a wall shape or a rotary cleaning body with only cloth blades can be used arbitrarily.

As mentioned above, although two rotating cleaning bodies were used, of course, the same effect can be obtained also when installing two or more.

What has been described above is to make the first suction port 20 have the function of the leak port, but of course, the suction port for sucking dust and the leak port can also be provided separately.

The suction port body of the electric vacuum cleaner according to technical solution 1 of the present invention is to open between a plurality of groove-shaped cleaning body chambers that are opened downward on the lower side to form an air leakage port other than the suction port, so when cleaning, it can pass through The rotating cleaning body and the surface to be cleaned in the cleaning body chamber in the front and rear of the moving direction ensure negative pressure near the air leakage port, and the air turbine installed in the suction air passage freely rotates through the suction airflow from the suction port. Rotate, and rotate the rotating cleaning body to sweep out the dust from the surface to be cleaned. When the lower side of the housing is a certain distance away from the surface to be cleaned, the air leakage port will open, and the suction from the air leakage port will increase. The suction volume of the port is reduced, and the rotation speed of the air turbine can be easily reduced with a simple structure, and the rotation speed of the rotating cleaning body can be reduced.

The suction port body of the electric vacuum cleaner of the technical solution 2 of the present invention is on the suction port body of the electric vacuum cleaner of the technical solution 1, and a connecting ventilation path is set to make the cleaning body chamber communicate with the air leakage port, so the cleaning that is swept out by the rotating cleaning body The dust in the body chamber is easily sucked into the air leakage port through the connecting air path, and since the air path from the air leak port to the connecting pipe is also used as a dust suction air path, the structure is simple and the cleaning efficiency is easy to improve.

The suction port body of the electric vacuum cleaner of the technical solution 3 of the present invention is on the suction port body of the electric vacuum cleaner of the technical solution 2, and the connecting ventilation path is a groove-shaped structure opening downward, so when cleaning, the groove-shaped connecting ventilation The air path that connects the cleaning body chamber with the suction port is formed between the surface to be cleaned and the lower side of the housing. With a simple structure, the dust in the cleaning body chamber swept out by the rotating cleaning body can pass through the groove-shaped connection. The ventilation path smoothly sucks into the air leak without being blocked in the connecting ventilation path, which is convenient for maintenance.

The suction body of the electric vacuum cleaner according to technical solution 4 of the present invention is provided with an air turbine along the axial direction of the air turbine shaft body in the up and down direction between a plurality of rotating cleaning bodies, so the air turbine rotated by the effect of the suction airflow and The rotating cleaning bodies overlap in the vertical direction, so even if a plurality of rotating cleaning bodies driven by the air turbine are provided in order to improve cleaning performance, the front and rear dimensions in the moving direction can be reduced, and miniaturization can be easily realized.

The suction port body of the electric vacuum cleaner of the technical solution 5 of the present invention is on the suction port body of the electric vacuum cleaner of the technical solution 4, and the bearing supporting the air turbine shaft body is arranged at a position below the upper end of the rotating cleaning body, so the up and down can be reduced. Directional size, easy to achieve miniaturization.

The suction port body of the electric vacuum cleaner of the technical solution 6 of the present invention is on the suction port body of the electric vacuum cleaner of the technical solution 4 or 5, and the transmission device that transmits the rotary drive of the air turbine to the rotary cleaning body is arranged below the upper end of the rotary cleaning body Therefore, the size in the vertical direction can be reduced, and miniaturization can be easily realized. At the same time, since the rotary drive of the air turbine is transmitted to the end of the rotary cleaning body, the transmission device can be easily isolated and arranged with a simple structure, and dust can be prevented. Attaches to the transmission for easy maintenance.

The suction port body of the electric vacuum cleaner according to technical solution 7 of the present invention is the axial direction of the air turbine shaft body rotated by the suction airflow arranged in the up and down direction between a plurality of rotating cleaning bodies, and a cleaning body is provided on one side of the air turbine. The suction air passage between the chamber and the communication pipe is arranged on the other side and between the cleaning body chambers to transmit the rotation of the air turbine to the rotating cleaning body and drive the rotating cleaning body to rotate, so there is no need to transfer the air The turbine and each rotating cleaning body are overlapped in the vertical direction, and the suction air path and the transmission device are overlapped in the vertical direction, that is, the size in the front-rear direction and the vertical direction can be reduced, and it is easy to realize miniaturization. At the same time, the transmission can be easily realized with a simple structure. The isolation configuration of the device can prevent dust from adhering to the transmission device and facilitate maintenance.

The suction port body of the electric vacuum cleaner according to technical solution 8 of the present invention is to set the axial direction of the air turbine shaft body in the up and down direction between a plurality of rotating cleaning bodies, and a cleaning body that makes the front side of the moving direction is provided on one side of the turbine chamber. The suction air path that the chamber communicates with the communication pipe is provided on the other side to supply the air suction air flow to the turbine chamber that accommodates the air turbine, so there is no need to overlap the air turbine and each rotating cleaning body in the vertical direction. Simultaneously, by overlapping the suction air path and the suction air supply air path in the vertical direction, the size in the front-back direction and the vertical direction can be reduced, and miniaturization can be easily realized.

The electric vacuum cleaner of technical solution 9 of the present invention is equipped with components that do not need to be provided with opening and closing air leakage ports, has a simple structure, can reduce the rotating speed of the rotating cleaning body in the lifting state, is miniaturized, and can also improve cleaning efficiency by using an air turbine. The suction port body of the electric vacuum cleaner described in any one of technical solutions 1 to 8 can improve the cleaning performance.

Claims (9)

1. the section port body of an electric dust collector is characterized in that, comprising:

Housing, have be located at the downside relative with swept surface and in the groove shape cleaning body chamber of a plurality of openings downwards of the fore-and-aft direction of moving direction, the gas leakage mouth of the downside opening between these cleaning body chambers and outside this gas leakage mouthful the air entry of other opening;

Be located on this housing, leak gas a mouthful communicating pipe that is communicated with and is communicated with described air entry through air-breathing wind path with described;

Rotation is provided in the rotary cleaning body of each cleaning body chamber of described housing freely respectively;

Rotation is located at freely in the described air-breathing wind path and by sucking air-flow and makes described rotary cleaning body make rotation driven air turbine,

Described gas leakage mouth is communicated with described communicating pipe in the downstream of described air turbine.

2. the section port body of electric dust collector according to claim 1 is characterized in that, housing possesses the communication air duct that the cleaning body chamber is communicated with the gas leakage mouth.

3. the section port body of electric dust collector according to claim 2 is characterized in that, communication air duct is the groove columnar structure of opening downwards.

4. the section port body of an electric dust collector is characterized in that, comprising:

Housing, the groove shape cleaning body chamber with a plurality of openings downwards of the fore-and-aft direction that is located at the downside relative with swept surface and is located at moving direction reaches the air entry of other opening outside these these cleaning body chambers;

The communicating pipe of being located on this housing, being communicated with described cleaning body chamber and being communicated with described air entry through air-breathing wind path;

Rotation is provided in the rotary cleaning body of each cleaning body chamber of described housing freely respectively;

Overlook under the state above this rotary cleaning body and this rotary cleaning body is overlapping, by being located between the described cleaning body chamber, axially making described rotary cleaning body make the air turbine in the form of annular discs in the horizontal direction that rotation drives for the axis body of above-below direction rotates to be located at freely in the described air-breathing wind path and by sucking air-flow

Described gas leakage mouth is communicated with described communicating pipe in the downstream of described air turbine.

5. the section port body of electric dust collector according to claim 4 is characterized in that, the following locational bearing in upper end that axis body is provided in rotary cleaning body between the cleaning body chamber supports.

6. according to the section port body of claim 4 or 5 described electric dust collectors, it is characterized in that, the transmission device that the rotation of transmitting air turbine to the end of rotary cleaning body is driven is arranged between the described cleaning body chamber, and is arranged on the following position, upper end of described rotary cleaning body.

7. the section port body of electric dust collector according to claim 4 is characterized in that,

Also comprise: described relatively air turbine between described cleaning body chamber and be located at an opposite side, the rotation of described air turbine is driven be delivered to described rotary cleaning body and make described rotary cleaning body make the transmission device that rotation drives with described suction wind path.

8. the section port body of electric dust collector according to claim 4 is characterized in that,

Also comprise the turbine room that Air wheel is housed, described air-breathing wind path is at described relatively air turbine and a side opposite with described suction wind path is provided with and will sucks the air-breathing supply wind path that air-flow is supplied with to described turbine room.

9. an electric dust collector is characterized in that, the inhalator body that the section port body of any described electric dust collector is connected with the section port body that supplies this electric dust collector in the scheme that possesses skills 1 to 8.

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