CN207566108U - A kind of general pump head - Google Patents

Abstract

The utility model discloses a universal pump head, which comprises a container with an open upper end, a connecting piece and a pump core, the connecting piece is installed at the open upper end of the container, an installation hole is opened in the connecting piece, and the pump core includes a pressing head and a lock cover And a hollow shell, the lock cover is located at the mounting hole and is detachably installed in the connector, the side of the pressing head is provided with a liquid outlet, the shell is located in the container, the top is installed in the lock cover, and the bottom is opened with a Liquid inlet, the casing is provided with a piston assembly for pressing the liquid sucked by the liquid inlet out from the liquid outlet, the piston assembly is connected to the casing by sliding up and down, the bottom of the pressing head passes through the lock cover and extends into the casing and is connected to the piston Components are permanently connected. In order to solve the above technical problems, the utility model provides a general-purpose pump head, the spring is placed outside to avoid soaking in the liquid, the service life of the spring is improved, it can be installed on containers of various calibers for use, saving costs, and can be mass-produced for easy loss or storage. Replace when damaged.

Description

A universal pump head

technical field

The utility model relates to a pump head, in particular to a general pump head.

Background technique

In the prior art, the pump head installed on the container is used as a one-way valve inside the spring, which is soaked in the liquid for a long time without using the spring for long-term use. At the same time, one pump head can only be used for one container, which increases the production cost. , such as household shower gel and shampoo, once the squeeze pump head is damaged or lost, the merchant does not have a corresponding squeeze pump head for sale, and it can no longer be used normally, which brings various inconveniences.

Utility model content

In order to solve the above technical problems, the utility model provides a universal pump head, the spring is placed outside to avoid soaking in the liquid, the service life of the spring is improved, and it can be installed on containers of various calibers for use, saving costs, and can be mass-produced for easy loss or storage. Replace when damaged.

The technical scheme that the utility model solves the problems of the technologies described above is as follows

A general pump head, comprising a container with an open upper end, a connecting piece and a pump core, the connecting piece is installed at the open upper end of the container, an installation hole is opened in the connecting piece, the pump core includes a pressing A head, a lock cover and a hollow shell, the lock cover is located at the mounting hole and is detachably installed in the connecting piece, a liquid outlet is provided on one side of the pressing head, and the shell is located at the The top of the container is installed in the lock cover, the bottom is provided with a liquid inlet, and the housing is provided with a piston assembly for pressing the liquid sucked by the liquid inlet out from the liquid outlet. The piston assembly is slidably connected up and down with the housing, and the bottom of the pressing head passes through the lock cover and protrudes into the housing and is fixedly connected with the piston assembly.

The beneficial effects of the utility model are: and one pump head can be installed on a plurality of containers with different calibers for use, so that one head can be used for multiple purposes, and when the pump head is damaged or lost, due to its versatility, the pump head can also be purchased directly The head can be replaced for easy maintenance.

On the basis of the above technical solutions, the utility model can also be improved as follows.

Further, a liquid discharge channel is opened in the piston assembly, the bottom of the piston assembly and the housing enclose a liquid inlet chamber, and the liquid inlet chamber communicates with the bottom of the pressing head through the liquid discharge channel, so A sphere is arranged in the liquid inlet chamber, and the liquid inlet port is connected to or separated from the liquid inlet chamber through the sphere.

The beneficial effect of adopting the above further scheme is that the structure is simple, and the liquid is sucked and pressed out directly through the piston assembly.

Further, a liquid outlet pipe is provided at the bottom of the pressing head, an elastic member is provided between the pressing head and the lock cover, and the two ends of the elastic member respectively contact the bottom surface of the pressing head and the bottom surface of the lock cover. On the top surface, an annular baffle extends downward from the side of the pressing head, the elastic member is located in the annular baffle, the liquid outlet communicates with the top of the liquid outlet pipe, and the liquid outlet pipe The bottom end passes through the center of the lock cover and communicates with the liquid discharge channel, the lock cover engages with the top end of the housing and the connector is installed between the lock cover and the housing .

The beneficial effect of adopting the above further scheme is to prevent the elastic parts from being soaked in the liquid and improve the service life.

Further, an escape groove is provided on the connecting piece, and the escape groove communicates with the installation hole.

The beneficial effect of adopting the above further scheme is that the connecting part of the lock cover and the liquid outlet pipe is located in the avoidance groove, and the connecting part of the pressing head and the lock cover is hidden by opening the avoidance groove, and the pressing stroke is also hidden, which reduces visually The height of the pressing head is more beautiful.

Further, the piston assembly includes a piston, a main pipe, and an auxiliary pipe fixedly connected to the bottom end of the main pipe, the outer side of the piston is in sliding and sealing connection with the inner cavity of the housing, and the inner side of the piston is connected with the auxiliary pipe. The outer side is slidingly sealed, and the drain channel includes an axial through hole, an axial hole and a radial through hole, the axial through hole is opened in the main pipe, and the axial hole and the radial through hole They are all set in the auxiliary pipe, the axial through hole and the radial through hole are connected through the axial hole, and the lower part of the auxiliary pipe is fixed with a valve for restricting the piston from going downward relative to the auxiliary pipe. The shaft shoulder of the maximum displacement of sliding, the main pipe is provided with an annular groove for limiting the maximum displacement of the piston relative to the auxiliary pipe, and the inner side of the top of the piston is fixed with the annular groove. Annular protrusion A; when the piston is in contact with the shaft shoulder, the radial through hole is separated from the liquid inlet cavity, and when the piston is away from the shaft shoulder, the radial through hole is separated from the inlet The liquid cavity is connected.

The beneficial effect of adopting the above further solution is that the structure is compact and the connection is tight.

Further, the lower end of the liquid inlet chamber is provided with an inverted conical conical chamber, the bottom end of the conical chamber communicates with the liquid inlet, the top end of the conical chamber communicates with the liquid inlet chamber and its A cross-shaped plug for preventing the ball from entering the liquid inlet chamber is installed at the communication part, and the ball is located in the tapered chamber.

The beneficial effect of adopting the above further solution is to limit the position of the sphere, prevent the sphere from running around, and ensure that the sphere can realize the function of one-way sealing.

Further, the lock cover is provided with an annular groove, the outer side of the housing is fixed with a card plate, and the middle part of the installation hole is extended inward with an annular protrusion B, and the housing passes through the installation hole and is located on the card. A section of the housing above the plate is snapped into the annular groove and the annular protrusion B is pressed against the clamp plate; the center of the lock cover is provided with a threaded through hole, and the lower part of the outlet pipe An external thread matched with the threaded through hole is provided.

The beneficial effect of adopting the above-mentioned further solution is beautiful, and at the same time, the connecting piece is pressed directly through the cooperation of the lock cover and the housing, so as to ensure that the whole structure is stable and compact, and the assembly is simple.

Further, a gasket is provided between the annular protrusion B and the clamping plate, and a seal for sealing the connector and the housing is provided on the contact surface between the annular protrusion B and the gasket. waterline.

The beneficial effect of adopting the above further solution is to improve the sealing performance between the housing and the connecting piece.

Further, the connecting piece is covered with a connecting nut, the connecting piece is snap-connected with the connecting nut, and the connecting nut is threadedly connected with the upper opening of the container. .

The beneficial effect of adopting the above further solution is that the connection method is simple and the production cost is low.

Further, the connecting nut is fixed with a sleeve for limiting the pressing stroke of the pressing head, the top of the sleeve is placed inside the pressing head, the bottom of the sleeve is located outside the lock cover, and the connecting In the part, the connecting nut is provided with a cover body, and the cover body is fastened with the connecting nut.

The beneficial effect of adopting the above further solution is simple structure, easy production and low cost.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the explosion schematic diagram of the utility model without container;

Fig. 3 is the structural representation without container of embodiment 1;

Fig. 4 is a schematic structural diagram of real-time example 2 without a container.

Fig. 5 is a partial enlarged view of part I of Fig. 4;

Fig. 6 is a partially enlarged view of part J of Fig. 4;

In the accompanying drawings, the list of parts represented by each label is as follows:

1. Container, 2. Shell, 3. Connector, 4. Lock cover, 5. Pressing head, 6. Ball, 7. Liquid inlet chamber, 8. Sliding chamber, 9. Axial through hole, 10. Outlet Liquid port, 11, liquid outlet pipe, 12, annular baffle, 13, elastic member, 14, main pipe, 15, auxiliary pipe, 16, piston, 17, shaft shoulder, 18, annular protrusion 19, axial hole, 20 , Sealing water line, 21, Annular protrusion B, 22, Clamp plate, 23, Gasket, 24, Connecting nut, 25, Cover body, 26, Tapered cavity, 27, Cross plug, 28, Liquid inlet, 29, sleeve, 30, radial through hole, 31, avoid empty groove.

Detailed ways

The principles and features of the present utility model are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the utility model, and are not used to limit the scope of the utility model.

Example 1

As shown in Figures 1 to 3, a general pump head includes a container 1 with an open upper end, a connecting piece 3 and a pump core, the connecting piece 3 is installed at the upper opening of the container 1, and a mounting hole is opened in the connecting piece 3 , the pump core includes a pressing head 5, a lock cover 4 and a hollow housing 2, the lock cover 4 is located at the mounting hole and is detachably installed in the connector 3, the side of the pressing head 5 is provided with a liquid outlet 10, and the housing 2 is located in the container 1, its top is installed in the lock cover 4, its bottom is opened with a liquid inlet 28, and the housing 2 is provided with a piston assembly for pressing the liquid sucked by the liquid inlet 28 out of the liquid outlet 10, The piston assembly is slidingly connected with the housing 2 up and down, and the bottom of the pressing head 5 passes through the lock cover 4 and extends into the housing 2 and is fixedly connected with the piston assembly. A liquid discharge channel is opened in the piston assembly, the bottom of the piston assembly and the housing 2 enclose a liquid inlet chamber 7, the liquid inlet chamber 7 communicates with the bottom of the pressing head 5 through the liquid discharge channel, and a sphere 6 is arranged in the liquid inlet chamber 7 to feed The liquid port 28 is communicated with or separated from the liquid inlet chamber 7 through the ball 6 . The bottom of the pressing head 5 is provided with a liquid outlet pipe 11, and an elastic member 13 is arranged between the pressing head 5 and the lock cover 4. The two ends of the elastic member 13 respectively contact the bottom surface of the pressing head 5 and the top surface of the locking cover 4. An annular baffle 12 extends downward from the peripheral side, and the elastic member 13 is located in the annular baffle 12. The liquid outlet 10 communicates with the top of the liquid outlet pipe 11, and the bottom end of the liquid outlet pipe 11 passes through the center of the lock cover 4 and connects with the drain. The liquid channel is connected, the lock cover 4 is engaged with the top end of the housing 2 and the connecting piece 3 is installed between the lock cover 4 and the housing 2 . A relief groove 31 is provided on the connecting piece 3, and the relief groove 31 communicates with the installation hole.

The piston assembly includes a piston 16, a main pipe 14 and an auxiliary pipe 15 fixedly connected to the bottom of the main pipe 14. The outer side of the piston 16 is in sliding and sealing connection with the inner cavity of the housing 2, and the inner side of the piston 16 is in sliding and sealing connection with the outer side of the auxiliary pipe 15. The liquid passage includes an axial through hole 9, an axial hole 19 and a radial through hole 30, the axial through hole 9 is opened in the main tube 14, the axial hole 19 and the radial through hole 30 are all opened in the auxiliary pipe 15, and the axial The through hole 9 and the radial through hole 30 are communicated through the axial hole 19. The lower part of the auxiliary pipe 15 is fixed with a shaft shoulder 17 for limiting the maximum displacement of the piston 16 sliding downward relative to the auxiliary pipe 15. The main pipe 14 is provided with a An annular groove that restricts the maximum displacement of the piston 16 sliding upward relative to the auxiliary pipe 15. The inner side of the top of the piston 16 is fixed with an annular protrusion A18 that matches the annular groove; when the piston 16 contacts the shoulder 17, the radial through hole 30 and The liquid inlet chamber 7 is isolated, and the radial through hole 30 communicates with the liquid inlet chamber 7 when the piston 16 is away from the shaft shoulder 17 .

The auxiliary pipe 15 is a structure with an open upper end and a closed lower end. The piston 16 is cylindrical and sleeved outside the auxiliary pipe 15, and is tightly sealed with the auxiliary pipe 15. When not in use, the piston 16 abuts on the shoulder 17, and the Outside the auxiliary pipe 15, the radial through hole 30 at the lower end of the auxiliary pipe 15 is blocked. During use, the relative displacement between the piston 16 and the auxiliary pipe 15, the piston 16 leaves the shoulder 17, and the two ends of the radial through hole 30 Exposed, the upper and lower sides of the shaft shoulder 17 are connected to the liquid inlet chamber 7, which can be realized simply by opening a plurality of holes or grooves on the shaft shoulder 17, and at the same time, the piston and the inner wall of the housing 2 are sealed. , so the liquid in the liquid inlet chamber 7 cannot flow into the chamber surrounded by the housing and the top of the piston assembly through the piston, but can only flow into the axial hole 19 and the axial through hole 9 through the radial through hole 30, and finally from the liquid outlet pipe 11 and liquid outlet 10 flow out.

The lower end of the liquid inlet chamber 7 is provided with an inverted conical tapered chamber 26, the bottom end of the tapered chamber 26 is communicated with the liquid inlet 28, and the top of the tapered chamber 26 is communicated with the liquid inlet chamber 7 and a device for preventing The sphere 6 enters the cross-shaped plug 27 of the liquid inlet cavity 7 , and the sphere 6 is located in the conical cavity 26 . The lock cover 4 is provided with an annular groove, the outer side of the housing 2 is fixed with a clamping plate 22, and the middle part of the installation hole extends inwards with a ring-shaped protrusion B21, and the housing 2 runs through the installation hole and a section of the housing 2 above the clamping plate 22 snaps into it. The annular groove and the annular protrusion B21 are pressed on the clamping plate 22; the center of the lock cover 4 is provided with a threaded through hole, and the lower part of the liquid outlet pipe 11 is provided with an external thread matched with the threaded through hole.

The connecting piece 3 is covered with a connecting nut 24 , the connecting piece 3 is snap-connected with the connecting nut 24 , and the connecting nut 24 is threadedly connected with the upper opening of the container 1 . The connecting nut 24 is fixedly provided with a sleeve 29 for limiting the pressing stroke of the pressing head 5. The top of the sleeve 29 is placed inside the pressing head 5, and the bottom of the sleeve 29 is located outside the lock cover 4 and inside the connector 3. The connecting nut 24 A cover body 25 is arranged on it, and the cover body 25 is fastened with the connecting nut 24 .

Wherein preferably, the elastic member 13 is a spring, the ball 6 is a glass bead, and a scale for measuring the amount of liquid is provided outside the cover body 25 .

During installation, containers 1 of different calibers can be loaded into the same pump core through connectors 3 and connecting nuts 24 of different sizes, so that one pump core can be mounted on multiple containers 1 to achieve a universal effect.

When not in use, the lock cover 4 and the liquid outlet pipe 11 are threaded and fixed.

When in use, open the threaded connection between the liquid outlet pipe 11 and the lock cover 4, so that the liquid outlet pipe 11 can move up and down in the lock cover 4, open the cover body 25, and first pull up the pressing head 5 to make the pressing head 5 leave Sleeve 29, and then press down on the pressing head 5, and the pressing head 5 drives the piston assembly to move downward, wherein the main pipe 14 and the auxiliary pipe 15 move directly downward, applying downward pressure to the liquid inlet chamber 7, and the ball 6 blocks the liquid inlet 28 , the piston 16 does not move, the auxiliary pipe 15 gradually moves away from the piston 16, and at the same time the two ends of the radial through hole 30 are also far away from the piston 16, the radial through hole 30 communicates with the liquid inlet chamber 7, and the liquid enters the liquid from the liquid inlet chamber 7 The pipe 11 is pressed out through the liquid outlet pipe 11 and the liquid outlet 10 until the annular groove moves down until the annular protrusion A18 is completely in contact with it. At this time, the piston 16 also moves with the main pipe 14 and the auxiliary pipe 15 to keep pressing out the liquid , until the end of the pressing stroke. The pressing head 5 rises under the restoring force of the spring, driving the piston assembly to return, wherein the main pipe 14 and the auxiliary pipe 15 move upwards directly, and the piston 16 does not move until the shaft shoulder 17 contacts the piston 16, and the piston 16 is set on the outside of the auxiliary pipe 15 again. Close the two ends of the radial through hole 30, the piston 16 blocks the radial through hole 30 and moves upward together with the main pipe 14 and the auxiliary pipe 15, the ball 6 rebounds, opens the liquid inlet 28, and starts to enter the liquid for the next pressure. Get ready.

Example 2

As shown in FIGS. 4 to 6 , the difference between this embodiment and Embodiment 1 is that a sealing water line 20 for sealing the connecting member 3 and the housing 2 is provided on the contact surface between the connecting member 3 and the gasket 23 . Preferably, the gasket 23 is an EVA foam sealing gasket 23 . Make it better sealing performance.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (10)

1. a kind of general pump head, it is characterised in that：Container (1), connector (3) and pump core including upper end opening, the connection Part (3) is mounted on the upper end open-mouth of the container (1), and the connector (3) is interior to offer mounting hole, and the pump core includes pressing Pressure head (5), locking closure (4) and hollow housing (2), the locking closure (4) is at the mounting hole and is detachably arranged in institute It states in connector (3), press head (5) side is equipped with liquid outlet (10), and the housing (2) is interior positioned at the container (1), Top is mounted in the locking closure (4), and bottom offers inlet (28), be equipped in the housing (2) be used for will it is described into The piston component that the liquid of liquid mouth (28) sucking is extruded from liquid outlet (10), the piston component on the housing (2) with gliding Dynamic connection, press head (5) bottom pass through the locking closure (4) and stretch into the housing (2) and consolidate with the piston component Fixed connection.

2. a kind of general pump head according to claim 1, it is characterised in that：Apocenosis passage is offered in the piston component, The bottom of the piston component surrounds admission chamber (7), the admission chamber (7) and the press head (5) bottom with the housing (2) It is connected by the apocenosis passage, sphere (6), the inlet (28) and the admission chamber (7) is equipped in the admission chamber (7) It is connected or separated by the sphere (6).

3. a kind of general pump head according to claim 2, it is characterised in that：Press head (5) bottom is equipped with outlet tube (11), elastic component (13) is equipped between the press head (5) and the locking closure (4), the both ends of the elastic component (13) connect respectively The bottom surface of the press head (5) and the top surface of the locking closure (4) are touched, press head (5) side has extended downwardly ring baffle (12), the elastic component (13) is in the ring baffle (12), the liquid outlet (10) and the top of the outlet tube (11) End connection, the bottom end of the outlet tube (11) pass through the locking closure (4) center and are connected with the apocenosis passage, the locking closure (4) with the clamping of the top of the housing (2) and by the connector (3) mounted on the locking closure (4) and the housing (2) it Between.

4. a kind of general pump head according to claim 3, it is characterised in that：Avoiding hollow groove is offered on the connector (3) (31), the avoiding hollow groove (31) connects with the mounting hole.

5. a kind of general pump head according to claim 3, it is characterised in that：The piston component includes piston (16), supervisor (14) and with described supervisor (14) bottom end the looped pipeline (15) being fixedly connected, piston (16) outside are interior with the housing (2) Chamber is slidably and sealingly connected with, and is slidably and sealingly connected on the outside of the inside of the piston (16) and the looped pipeline (15), the drain is led to Road includes axially extending bore (9), axial hole (19) and radial through-hole (30), and the axially extending bore (9) is opened in the supervisor (14) Interior, the axial hole (19) and the radial through-hole (30) are opened in the looped pipeline (15), the axially extending bore (9) and institute It states radial through-hole (30) to connect by the axial hole (19), is fixed with to limit the work outside looped pipeline (15) lower part The shaft shoulder (17) of the maximum displacement of (16) relatively described looped pipeline (15) slide downward is filled in, the supervisor (14) is externally provided with to limit The annular slot of the maximum displacement of relatively described looped pipeline (15) upward sliding of the piston (16), piston (16) inside top It is fixed with the annular protrusion A (18) coordinated with the annular slot；When the piston (16) is contacted with the shaft shoulder (17) The radial through-hole (30) is separated with the admission chamber (7), the radial direction when the piston (16) the separate shaft shoulder (17) Through-hole (30) is connected with the admission chamber (7).

6. a kind of general pump head according to claim 5, it is characterised in that：Admission chamber (7) lower end is equipped with inverted conical Conical cavity (26), the bottom end of the conical cavity (26) connects with the inlet (28), the top of the conical cavity (26) with The admission chamber (7) connection and its connectivity part are equipped with for preventing sphere (6) into the cross plug (27) of admission chamber (7), The sphere (6) is in the conical cavity (26).

7. according to a kind of any one of claim 1-6 general pump heads, it is characterised in that：The locking closure (4) offers annular Slot, housing (2) outside are fixed with snap-gauge (22), and extending internally in the middle part of the mounting hole has annular protrusion B (21), described The one section housing (2) of the housing (2) through the mounting hole and above the snap-gauge (22) is caught in the annular groove And the annular protrusion B (21) is pressed on the snap-gauge (22)；Locking closure (4) center offers tapped through hole, described The lower part of outlet tube (11) is equipped with the external screw thread coordinated with the tapped through hole.

8. a kind of general pump head according to claim 7, it is characterised in that：The annular protrusion B (21) and the snap-gauge (22) gasket (23) is equipped between, the annular protrusion B (21) and the contact surface of the gasket (23) are equipped with for sealing State the sealing waterline (20) of connector (3) and the housing (2).

9. according to a kind of any one of claim 1-6 general pump heads, it is characterised in that：It is arranged with outside the connector (3) Attaching nut (24), the connector (3) snap connection with the attaching nut (24), the attaching nut (24) and the appearance The upper end open-mouth of device (1) is threadedly coupled.

10. a kind of general pump head according to claim 9, it is characterised in that：Use is fixed on the attaching nut (24) The sleeve (29) of stroke is pressed down in limitation press head (5), is placed at the top of the sleeve (29) in the press head (5), The bottom of the sleeve (29) be located at the locking closure (4) outside, in the connector (3), the attaching nut (24) is equipped with cover Body (25), the cover body (25) and the attaching nut (24) snapping.