TWM625745U - Air compressor - Google Patents

Abstract

The present invention provides an air compressor, especially an air compressor with a top end surface of the piston head provided with an air intake blocking piece, the air intake blocking piece is provided with a bending section, so that the intake blocking piece is beside the bending section And the rest of the parts that do not belong to the positioning area constitute an active area located above the piston air channel. The active area and the top plane of the piston head form a small-angle ventilation space. The piston rod extending below the axis of the piston head has A hole, the bottom end of which is erected at the end of the column is sleeved with a spring, and the other end of the spring protrudes upward along the air passage through which the piston head is penetrated up and down, and slightly rises against the aforementioned air intake blocking piece, so that the piston head enters the cavity. The air passage communicates with the ventilation space, and keeps the action area of the intake blocking plate open when the piston is stationary.

Description

Air compressor

The present invention relates to the technical field of air compressors, in particular to a piston capable of performing upstroke and downstroke strokes in the cylinder of the air compressor.

The main structure of the air compressor is to use a motor to drive a piston to perform a reciprocating compression action in the cylinder. The compressed air can be transported from the cylinder to the air storage seat, and then connected by the manifold on the air storage seat. The transmission hose is connected to the object to be inflated. The conventional piston is provided with an air channel that is penetrated up and down on the piston head, and the top plane of the piston head is covered with an air intake blocking plate on the air channel. When the air compressor is in a stopped state At the bottom, the air intake blocking sheet closes the air passage of the piston head. When the air compressor is in the previous operation, it is formed by the airtight ring arranged around the circular periphery of the piston head and the air intake blocking sheet closing the air passage of the piston head. The high-pressure air remaining in the cylinder cannot be discharged, and when the air compressor starts again, the piston hits the high-pressure air remaining in the cylinder in the process of starting compression, which instantly increases the load of the air compressor. And the current surges, resulting in the loss of life of the air compressor. In order to improve the lack of conventional knowledge, therefore, the author developed a kind of ventilation space with a small angle between the top surface of the piston head and the air intake resistance plate when the air compressor is in the stopped state. After the operation of the compressor is over, the compressed air remaining in the cylinder can be discharged from the ventilation space through the air passage, so that the pressure in the cylinder is balanced with the surrounding atmosphere, so that after the air compressor starts again, its piston will not be in the upward stroke. There is extra resistance to avoid the instantaneous increase of compression load and current surge, so that the piston can maintain smooth compression performance when reciprocating in the cylinder, and it is more safe to use and prolong its service life, and can be easier and faster Place the object to be inflated with sufficient gas.

The main purpose of this creation is to provide an air compressor, especially that the piston installed in the air compressor has an air intake blocking plate installed on its piston head, and the intake air blocking plate is provided with a bending section. One side is a positioning area, which can be installed on the top of the piston head, and the other side is an action area that can cover the air passage of the piston. The segment is the boundary axis, so that the outer surface of the intake block forms an obtuse angle of less than 180 degrees, and at the same time, the action area of the intake block naturally forms a small angle with the top plane of the piston head. , forming a ventilation space, the piston rod extending below the axis of the piston head has a hole, the bottom end of the vertical column tip is sleeved with a spring, and the other end of the spring is along the air channel that the piston head is penetrated up and down. It protrudes upwards and rises slightly against the aforementioned air intake blocking plate, so that when the piston of the air compressor is stopped and stationary, the action area of the intake air blocking plate is kept open relative to the air passage. Smooth and balance the pressure in the cylinder with the surrounding atmosphere, so that after the air compressor starts again, the piston will not have additional resistance (back pressure resistance) during the upstroke, so that the piston can maintain smooth when reciprocating in the cylinder. The compression efficiency is better, and it is more safe to use and prolong its service life, and it can more easily and quickly fill the object to be inflated with sufficient gas.

Another main purpose of the present invention is to provide an air compressor, in which a piston that moves in a cylinder is provided with an intake blocking piece, and the intake blocking piece is provided with a circular hole in the positioning area, The top plane of the piston head corresponding to the circular hole is provided with a fixing pin, the air intake resistance piece is provided with a through hole in the action area, and the piston head is provided with a limit corresponding to the position of the through hole. The hook is engaged with the through hole. The limit hook can be adjusted according to the output power of the air compressor to adjust the height at which the intake block can be opened. The action area of the piston head is attached to the top plane of the aforementioned piston head, so that the air intake block closes the air passage; when the piston is in the downward stroke, the intake block tends to increase the opening range due to the thrust of the outside air, but Due to the limitation of the limit hook, the unrestricted opening of the intake air blocking plate can easily lead to the fatigue and damage of the intake air blocking plate; when the piston is at rest, the The action area and the top plane of the aforesaid piston head remain open, and the through hole of the air intake blocking piece ends at the aforesaid limit hook.

Another main purpose of the present creation is to provide an air compressor, in which a piston that moves in a cylinder is provided with an intake blocking piece, and the intake blocking piece is located between the positioning area and the action area. A multi-track bending section is formed on the resist sheet by a mechanical process, and the multi-track bending section includes a plurality of bending tracks, that is, a first bending track and a second bending track are formed, so that the Air compressors with larger power therefore have more buffering capacity and can smoothly perform up and down strokes. In the static state, the action area of the air intake resistance sheet and the top plane of the aforementioned piston head remain open. The through hole of the sheet ends with the aforementioned limit hook.

Another main purpose of the present invention is to provide an air compressor. The piston system in the air compressor that moves in the cylinder includes a piston head and a piston rod extending below the shaft center. The piston rod is provided with a through-hole The caves on the left and right sides of the entity communicate with the outside world and form an air channel. The cave is communicated with the air inlet channel of the aforementioned piston head. There is an upright column tip on the bottom end surface of the cave, and a spring is sleeved on it. The spring extends through the intake passage of the piston head along the cavity of the piston rod.

Please refer to Fig. 8 first, the air compressor 10 of the present creation. The air compressor 10 can be installed in the cabin, the box 1 or where it works. As shown in the eighth picture, the box 1 is the device There is an air compressor 10, which can be used as an inflator or combined with a glue replenisher (not shown in the prior art) for glue replenishment and inflation. The air compressor 10 includes a motor 12 for fixing The base plate 11, a cylinder 13 combined on the base plate 11, and the base plate 11 can be provided with a transmission mechanism 14 of the air compressor 10. The transmission mechanism 14 is connected with a piston. Please refer to the first to seventh figures at the same time. A piston head 21 is included, and an airtight ring 24 is installed around the outer periphery of the piston head 21. The airtight ring 24 realizes continuous sealing around the inner surface of the piston and the cylinder 13 during the operation of the air compressor 10. The aforementioned piston head 21 is provided with a seal. There is an intake passage 23 running through it up and down, a piston rod 5 extends downward from the piston head 21, a circular hole 51 is provided at the lower end of the piston rod 5 and is pivotally fixed with the crankshaft 141 in the transmission mechanism 14, and the upper end of the piston rod 5 is There is a cavity 50 that runs through the left and right sides of the solid body and forms an air passage 52. The cavity 50 is communicated with the air inlet passage 23 of the aforementioned piston head 21. On the bottom end surface of the cavity 50, there is an upright column tip 53, which is The upper part is sleeved with a spring 54 , the spring 54 extends through the air inlet passage 23 of the piston head 21 along the hole 50 of the piston rod 5 , so that the other end of the spring 54 abuts against the action area of the air inlet blocking piece 7 On the back of 73 , the air intake blocking piece 7 can also keep the action area 73 of the air intake blocking piece 7 in a state of opening at a small angle θ due to the force of the spring 54 . This design enables the air passage 52 and the intake passage 23 to communicate with the atmosphere. When the output shaft of the motor 12 drives the crankshaft 141 of the transmission mechanism 14 to rotate, and at the same time drives the piston to perform upward and downward movements in the cylinder 13, compressed air is generated to enter the gas storage seat 15, and then pass through the gas delivery manifold. The setting allows the compressed air to enter the pressure display meter 16 to display the pressure, and the items to be inflated can be inflated through the connection of the air hose (not shown in the figure), or through the air hose or valve. The switch function allows the tire repair fluid to be delivered to the damaged tire for repairing the tire and the tire repair function of sufficient tire pressure (not shown in the figure), but they are all in the current state of use, so they are not shown or added. The details of the structure will be described in detail here.

The piston installed in the air compressor 10 of the present invention is installed with an intake blocking piece 7 on its piston head 21 . The intake blocking piece 7 is provided with a bending section 71 , and the bending section 71 has at least one bending trajectory. 711, in use, the bending section 71 can be provided with a plurality of bending trajectories to meet the output power requirements of different sizes of air compressors. It is folded to have a bending angle to form the bending trajectory 711 in this specification, but a mechanical process is precisely applied to pre-form an air intake baffle 7 with a bending angle to form the bending trajectory 711. When the external pressure acts When the air intake blocking piece 7 is used, the stress of the air intake blocking piece 7 can be opened and closed up and down according to the predetermined bending trajectory 711 (or rail), and a positioning area 72 can be set on one side of the bending trajectory 711 In order to be installed on the top plane of the aforementioned piston head 21, that is, the piston head 21 is provided with two-phase separated fixing pins, and relative to the fixing pins, in the positioning area 72 of the air intake resistance sheet 7, there is a phase-separated circular hole 721. , 722 , use the circular holes 721 and 722 of the intake blocking sheet 7 to locate the fixing pins of the piston head 21 respectively, so that the intake blocking sheet 7 can be firmly positioned on the piston head 21 . On the other side of the bending trajectory 711, the aforementioned air intake blocking piece 7 is an action area 73, which can cover the intake passage 23 of the piston, the action area 73 of the aforementioned intake air blocking piece 7 and the intake air blocking piece The positioning area 72 of 7 takes the bending trajectory 711 as the boundary axis, so that the positive surface of the intake blocking piece 7 (that is, the upper surface of the intake blocking piece 7 facing the top of the cylinder 13 during the upward rushing action) forms an angle of less than 180 degrees. At the same time, let the action area 73 of the intake block 7 naturally form an open state of a small angle θ with the top plane of the piston head 21 on the back surface facing away from the top of the cylinder 13, forming a ventilation space Z, When the piston of the air compressor 10 is in a stationary state, the action area 73 of the intake blocking plate 7 is kept open relative to the intake passage 23 and the air passage 52. There is a spring 54, and the other end of the spring 54 also abuts against the back of the action area 73 of the air intake resistance piece 7, so that the air intake resistance piece 7 and the top plane of the piston head 21 present an open ventilation space Z, based on the air intake resistance piece The design of the bending trajectory 711 of 7 and the back surface of the spring 54 against the action area 73 of the air intake resistance piece 7, so that the opening action of the air intake resistance piece 7 or the stage when the piston head 21 is stationary, the air intake resistance piece 7. It can maintain smooth operation and protection to avoid the occurrence of elastic fatigue. The pressure in the cylinder 13 is balanced with the surrounding atmosphere due to the smooth flow of the intake passage 23 of the piston, so that after the air compressor 10 starts again, the piston is at There is no additional resistance (back pressure resistance) during the upward stroke, so that the piston can maintain smooth compression performance when reciprocating in the cylinder 13, and it is safer to use, prolong its service life, and make it easier to use Quickly fill the object to be inflated with gas. Please refer to Figures 3 to 7, the action diagrams of the piston in the cylinder 13 during the upward stroke and the downward stroke. During the upward stroke of the piston, as shown in Figures 5 and 7, the spring 54 will be compressed and the intake resistance plate 7 will be closed. In the state of the intake passage 23, in the piston downstroke stage, the spring 54 will stretch and spread the intake blocking plate 7 away from the intake passage 23 to be in an open state, as shown in the fourth and sixth figures. The intake air blocking piece 7 and the bending trajectory 711 make the action area 73 of the air intake blocking piece 7 have an opening angle θ. The state is also shown in the third figure, so that the high-pressure air remaining in the cylinder 13 can pass through the ventilation space. Z. The intake passage 23 is balanced with the external atmospheric pressure, so that the back pressure of the intake blocking sheet 7 can be overcome when the piston operates again next time. The aforementioned air intake blocking piece 7 is provided with a through hole 731 in the action area 73 , and the aforementioned piston head 21 is provided with a limit hook 20 at a position corresponding to the through hole 731 and engages with the through hole 731 . The limit hook 20 includes a vertical column 213 and a transverse column 214. When the piston is stroked up, the action area 73 of the intake blocking piece 7 is attached to the top plane of the aforementioned piston head 21, so that the intake blocking piece 7 The intake passage 23 is closed; when the piston is in the downward stroke, although the intake baffle 7 tends to expand its opening range due to the thrust of the outside air, it is limited by the transverse column set by the limit hook 20 214, the unrestricted opening of the air intake blocking piece 7 can be avoided, which may easily lead to the fatigue and damage of the air intake blocking piece 7. The length of the upright post 213 set by the limit hook 20 can be adapted to the air compressor. The power output is appropriately lengthened or shortened, so that the operating amplitude of the intake block 7 conforms to the working principle; when the piston is at rest, the action area 73 of the intake block 7 is connected to the top of the aforementioned piston head 21. In addition to the open state of the plane, there is a pre-opening angle θ and a ventilation space Z, and the through hole 731 of the air intake blocking piece 7 ends at the transverse column 214 of the aforementioned limit hook 20 . The vertical post 213 of the limit hook 20 of the present invention provides a path for the opening, closing and opening and closing of the air intake blocking piece 7, so the length (or height) of the vertical post 213 can be adjusted according to the power of the air compressor. And the design of the transverse column 214 can adjust the initial height of the air intake blocking piece 7 .

The technical feature of the air intake blocking sheet 7 of the present invention is that a bending section 71 is provided on the blocking sheet body, and the bending trajectory 711 provided on the bending section 71 makes the air intake blocking sheet 7 in the action area 73 The body and The top planes of the aforementioned piston heads 21 together form an open state of a small angle θ. Because the air compressors have different power requirements, the size and hardness of the air intake block 7 should be changed accordingly. The amplitude of the upper and lower opening and closing is relatively large, so as mentioned above, the bending section can be used with a plurality of bending tracks to meet the output power requirements of different sizes of air compressors. In this embodiment, the folding The structure of the curved section is the multi-track bending section 94, and a first bending trajectory 941 and a second bending trajectory 942 are arranged on the multi-rail bending section 94, as shown in the ninth to eleventh figures. , the air intake blocking piece 9 still has a positioning area 91, the positioning area 91 is still provided with circular holes 911, 912, and the other side is the action area 93, the action area 93 is still provided with a through hole 931, the piston head 81 is provided with a limit hook 80 corresponding to the through hole 931 and engages with the through hole 931. The piston head 81 still extends downward with a piston rod 82, and there is still a hole in the upper end of the piston rod 82. 840 and an air passage 84 is formed, and a vertical column tip 841 is formed on the bottom end surface of the cavity 840, a spring 54 is sleeved on it, and the piston is stroked on the stroke. On the top plane of the piston head 81, the air intake blocking piece 9 closes the air passage 84; when the piston is in the downward stroke, although the intake blocking piece 9 tends to increase the opening range due to the thrust of the outside air, it is limited by the The limit hook 80 can avoid the phenomenon that the air intake blocking sheet 9 is easily opened due to fatigue and damage. The technical feature of this embodiment is that a multi-track bending section 94 is provided at the boundary between the positioning area 91 and the action area 93 of the air intake blocking piece 9. The multi-track bending section 94 in this specification refers to the use of mechanical The process completes the part with the angled shape, that is, the multi-track bending section 94 forms a first bending trajectory 941 and a second bending trajectory 942, and the second bending trajectory 942 extends backward. The circular holes 911 and 912 of the positioning area 91 can respectively penetrate through the upper platforms 85 and 86 on the top plane of the piston head 81 and end on the bottom platforms 87 and 88 on the top plane of the piston head 81. When the air compressor outputs high power , the first bending trajectory 941 abuts on the top plane of the piston head 81, so that the sheet body of the action area 93 of the intake blocking plate 9 and the top plane of the aforementioned piston head 81 together form an open state of a small angle θ, When the piston of the air compressor is in a stopped state, the action area 93 of the air intake resistance plate 9 is at an opening angle θ due to the spring 54 supporting the air intake resistance plate 9 and the first bending trajectory 941, and the air intake resistance plate 9 The action area 93 of the piston is kept open relative to the intake passage 89 of the piston, and the pressure in the cylinder 13 is balanced with the surrounding atmosphere due to the smooth flow of the intake passage 89 of the piston, so that after the air compressor starts again, the piston is at There is no additional resistance (back pressure resistance) during the upward stroke, so that the piston can maintain smooth compression performance when reciprocating in the cylinder 13, and it is safer to use, prolong its service life, and make it easier to use Quickly fill the material to be inflated with sufficient gas, and because of the high power output, the air intake blocking piece 9 has a multi-track bending section 94 design, so that the overall opening and closing action of the intake blocking piece 9 has a smoother function and better protection. The entire air intake blocking plate 9 is not damaged.

1: Box body 10: Air compressor 11: Substrate 12: Motor 13: Cylinder 14: Transmission mechanism 141: Crankshaft 15: Air storage seat 16: Pressure display gauge 20: Limit hook 21: Piston head 211: Fixed pin 212: Fixed pin 213: Upright Column 214: Lateral column 23: Intake channel 24: Air tight ring 5: Piston rod 50: Cave 51: round hole 52: Air channel 53: Post tip 54: Spring 7: Air intake blocker 71: Bend segment 711: Bend the track 72: Positioning area 721: round hole 722: round hole 73:Action area 731: Through hole 80: limit hook 81: Piston head 82: Piston rod 84: Air channel 840: Cave 841: Column tip 85: Upper Platform 86: Upper Platform 87: Bottom Platform 88: Bottom Platform 89: Intake channel 9: Air intake blocker 91: Positioning area 911: round hole 912: round hole 93:Action area 931: Through hole 94: Multitrack Bending Section 941: The first bending track 942: Second bending track Z: ventilation space θ: angle

The first picture: It is a three-dimensional exploded view of the piston of this creation. The second picture: It is a three-dimensional view of the piston of this creation. Figure 3: It is a partial enlarged cross-sectional view of the piston of this creation when it is stopped and stationary. Figure 4: It is a partial enlarged cross-sectional view of the piston of this creation in the downstroke. Figure 5: It is a partial enlarged cross-sectional view of the piston in the upstroke of this creation. Figure 6: It is a schematic diagram of the compressed air flow during the downward stroke action of the piston in this creation. Figure 7: It is a schematic diagram of the piston's upward stroke action in this creation. Figure 8: It is a schematic diagram of the air compressor installed in the box of this creation. Figure 9: It is an exploded perspective view of another piston. Figure 10: It is a sectional plan view of another piston. Figure 11: It is a partial enlarged cross-sectional view of another piston.

20: Limit hook

21: Piston head

211: Fixed pin

212: Fixed pin

213: Upright Column

214: Lateral column

23: Intake channel

24: Air tight ring

5: Piston rod

50: Cave

51: round hole

52: Air channel

53: Post tip

54: Spring

7: Air intake blocker

71: Bend segment

711: Bend the track

72: Positioning area

721: round hole

722: round hole

73:Action area

731: Through hole

Claims (7)

An air compressor, the air compressor system has a piston that can be driven by a motor and reciprocates up and down in a cylinder, and is characterized in that: the piston installed in the air compressor is installed on its piston head with an intake blocking plate, the The intake blocking piece is provided with a bending section. One side of the bending section is a positioning area that can be installed on the top of the piston head, and the other side is an action area that can cover the intake passage of the piston. The action area of the air blocking piece and the positioning area of the intake blocking piece take the bending section as the boundary axis, so that the upper surface of the intake blocking piece facing the cylinder top forms an obtuse angle of less than 180 degrees. The back surface of the action area, which is facing away from the cylinder top, naturally forms a small angle with the plane of the top end of the piston head, forming a ventilation space. The piston head extends downward with a piston rod, and the upper end of the piston rod is provided with a through body The holes on the left and right sides form an air channel, the hole is communicated with the air inlet channel provided by the piston head, and there is a vertical column tip on the bottom end surface of the hole, and a spring is sleeved on it. Along the hole of the piston rod, it extends through the air intake channel of the piston head, so that the other end of the spring touches the back of the action area of the air intake resistance piece, so that the air intake resistance piece can also keep the air intake due to the force of the spring. The action area of the blocking plate is opened at a small angle, so that the air passage and the intake passage can be connected to the atmosphere. The air compressor according to claim 1, wherein the bending section can be provided with a plurality of bending tracks in use to meet the output power requirements of different sizes of the air compressor. The air compressor according to claim 2, wherein the bending section is substantially provided with a bending trajectory. The air compressor according to claim 1, wherein the piston head is provided with two-phase-separated fixing pins, and relative to the fixing pins, a phase-separated circular hole is arranged in the positioning area of the air intake resistance sheet to utilize the air intake resistance. The circular holes of the sheet are respectively positioned on the fixing pins of the piston head, so that the intake blocking sheet can be firmly positioned on the piston head. The aforementioned intake blocking sheet is provided with a through hole in the action area. The position of the through hole is provided with a limit hook and is engaged with the through hole. When the piston of the air compressor is in a stationary state, the action area of the intake blocking plate is the intake channel of the corresponding piston head. Shows the open state. The air compressor according to claim 4, wherein the piston head plate limit hook includes an upright post and a transverse post, the upright post provides a path for opening, closing, opening and closing of the air intake resistance sheet, so it can be adjusted according to the The size of the power output of the air compressor can adjust the length (or height) of the vertical column and the design of the horizontal column to adjust the initial height of the air intake baffle. The air compressor of claim 2, wherein a multi-track bending section is formed on the blocking sheet by a mechanical process between the positioning area and the action area of the intake blocking sheet, and the multi-track bending section forms a The first bending trajectory and the second bending trajectory enable the air compressor with higher power to carry out the up and down stroke more smoothly. In the static state, the action area of the air intake blocking plate is connected to the top of the aforementioned piston head. In addition to maintaining the open state of the plane, the through hole of the air intake blocking piece ends at the aforementioned limit hook. The air compressor according to claim 6, wherein the circular holes in the positioning area extending backward from the second bending trajectory can respectively penetrate through the upper step platform of the top plane of the piston head and end at the top plane of the piston head. Bottom platform.

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