CN213511125U

CN213511125U - Valve assembly

Info

Publication number: CN213511125U
Application number: CN202022218906.4U
Authority: CN
Inventors: 陈映奇; 曹春晓; 张梦寅
Original assignee: JINHUA TECHNICIAN COLLEGE
Current assignee: JINHUA TECHNICIAN COLLEGE
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-06-22
Anticipated expiration: 2030-09-30

Abstract

The utility model relates to the technical field of air compressors and discloses a valve component which comprises an air inlet valve and an air outlet valve; the air inlet valve comprises a first limiting block, a second limiting block, a sliding column and a first spring; the sliding column penetrates through the inner space of the first spring, one end of the sliding column is connected with the first limiting block, the other end of the sliding column is fixedly connected with the second limiting block, and one end of the first spring is fixedly connected with the first limiting block; the second limiting block is of a circular truncated cone structure, and the upper bottom surface of the second limiting block is fixedly connected with the sliding column; the exhaust valve comprises a limiting column, a second spring sleeved on the limiting column and a sliding block movably sleeved on the limiting column; the slider is a round table structure, the lower bottom surface of the slider faces upwards, and one end of the spring is fixedly connected with the lower bottom surface. The utility model discloses a technical problem that prior art exists can be overcome to the valve member.

Description

Valve assembly

Technical Field

The utility model relates to an air compressor technical field specifically relates to a valve member.

Background

An air compressor is a mechanical device that increases the pressure of a gas by reducing its volume. Generally, compressors are used to fill objects with compressed air, such as vehicle tires, bicycle tires, sport balls, float tubes, and the like.

The valve is an important component of the air compressor. The valve is used for realizing two processes of sucking and discharging air, the principle is that air is sucked when the piston cylinder is at low pressure, and gas is discharged when the piston cylinder is at high pressure. In the working process, the valve plate is frequently opened and closed, so that the valve plate and the fixed plate are frequently impacted, and great noise is generated. In addition, the hair piece is subjected to alternating load in the working process, fatigue failure is easy to generate, and the service life is shortened.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned not enough or defect among the prior art, the utility model provides a noise that can effective air compressor and the longer valve member of life.

In order to achieve the above object, the present invention provides a valve assembly, comprising an intake valve and an exhaust valve;

the air inlet valve comprises a first limiting block, a second limiting block, a sliding column and a first spring; the sliding column penetrates through the inner space of the first spring, one end of the sliding column is connected with the first limiting block, the other end of the sliding column is fixedly connected with the second limiting block, and one end of the first spring is fixedly connected with the first limiting block; the second limiting block is of a circular truncated cone structure, and the upper bottom surface of the second limiting block is fixedly connected with the sliding column;

the exhaust valve comprises a limiting column, a second spring sleeved on the limiting column and a sliding block movably sleeved on the limiting column; the slider is a round table structure, the lower bottom surface of the slider faces upwards, and one end of the spring is fixedly connected with the lower bottom surface.

Will the utility model discloses a valve subassembly is applied to specific air compressor after, can realize the noise reduction of its production, the difficult fatigue destruction to admitting air and carminative control through second stopper and slider, has prolonged air compressor's life.

Furthermore, a channel penetrating along the axis of the sliding block is arranged on the sliding block, and the cross section of the channel is the same as that of the limiting column; the limiting column can extend into the channel and can slide in the channel.

Further, the cross section of the channel is circular or rectangular.

Further, the sliding column is movably sleeved with a sealing block, the sealing block is located between the first limiting block and the second limiting block, and the other end of the first spring, relative to the first limiting block, is connected with the sealing block.

Furthermore, hook parts are arranged at two ends of the first spring, ring parts are arranged on end faces, facing each other, of the first limiting block and the sealing block, and the hook parts can hook on the ring parts.

Furthermore, the sealing block is made of rubber materials and is of a cylindrical structure, a through hole penetrating along the axis of the sealing block is formed in the center of the sealing block, and the aperture of the through hole is slightly smaller than the diameter of the sliding column.

Furthermore, a gap which is distributed along the axial direction of the sealing block is arranged on the side wall of the sealing block, and the gap is communicated with the through hole.

Furthermore, a gap extending along the axial direction of the sealing block is arranged on the side wall of the sealing block, and the gap is communicated with the through hole.

Further, the gap is in a tooth-shaped structure.

Furthermore, a sealing ring is arranged on the circumferential side wall of the sliding block, and the sealing ring is made of a rubber material;

the periphery of the first limiting block is wrapped with a layer of rubber; and a sealing ring is arranged on the circumferential side wall of the second limiting block.

Other features and advantages of the present invention will be described in detail in the detailed description which follows.

Drawings

FIG. 1 is a schematic structural view of an embodiment of an intake valve;

FIG. 2 is a schematic structural view of another embodiment of an intake valve;

FIG. 3 is a schematic structural view of an embodiment of an intake valve;

FIG. 4 is a schematic view of the valve assembly assembled in the air compressor;

FIG. 5 is an enlarged view of portion A of the air compressor of FIG. 1 in an operational condition;

FIG. 6 is an enlarged view of section A of the air compressor of FIG. 1 in an intake condition;

FIG. 7 is an enlarged view of section A of the air compressor of FIG. 1 in an exhaust condition;

FIG. 8 is a schematic structural view of one embodiment of a seal block;

fig. 9 is a schematic structural view of another embodiment of a seal block.

Description of the reference numerals

10 cylinder 20 air intake channel

30 exhaust channel 40 piston

50 cam 60 connecting rod

70 intake valve 80 exhaust valve

11 ceiling 111 air intake

112 first stopper of exhaust port 71

72 second stop 73 strut

74 first spring 81 spacing column

82 second spring 83 slider

90 cover 751 through hole

752 notch 753 gap

Detailed Description

The following describes the embodiments of the present invention in detail. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

In the present invention, the use of the terms of orientation such as "upper and lower" in the case where no description is made to the contrary generally means the orientation in the assembled and used state. "inner and outer" refer to the inner and outer contours of the respective component itself.

The utility model provides a valve component, which comprises an air inlet valve and an air outlet valve;

as shown in fig. 1, the intake valve includes a first stopper 71, a second stopper 72, a spool 73, and a first spring 74; the sliding column 73 penetrates through the inner space of the first spring 74, one end of the sliding column is connected with the first limiting block 71, the other end of the sliding column is fixedly connected with the second limiting block 72, and one end of the first spring 74 is fixedly connected with the first limiting block 71; the second limiting block 72 is a circular truncated cone structure, and the upper bottom surface of the second limiting block is fixedly connected with the sliding column 73;

as shown in fig. 3, the exhaust valve includes a limiting post 81, a second spring 82 sleeved on the limiting post 81, and a sliding block 83 movably sleeved on the limiting post 81; the slider 83 is a circular truncated cone structure, the lower bottom surface of the slider faces upwards, and one end of the spring 82 is fixedly connected with the lower bottom surface.

Furthermore, a channel penetrating along the axis of the sliding block 83 is arranged on the sliding block, and the cross section of the channel is the same as that of the limiting column 81; the limiting column 81 can extend into the channel and can slide in the channel.

In the above, the term "the same cross section" includes the same size and the same shape of the cross section. Further, the channels may be arranged to be circular or rectangular in cross-section.

In order to further improve the sealing performance of the valve assembly, in another alternative embodiment, as shown in fig. 2, a sealing block 75 is movably sleeved on the sliding column 73, the sealing block 75 is located between the first stopper 71 and the second stopper 72, and the other end of the first spring 74 opposite to the first stopper 71 is connected to the sealing block 75.

The first spring 74 may be detachably connected with the first stopper 71 and the sealing block 75, or may be fixedly connected with the first stopper. Preferably, the spring with different elastic coefficients can be conveniently replaced by detachably connecting the spring with the air inlet pipe, so that the air inlet resistance of the air compressor can be adjusted.

In the above, the manner of "detachably connecting" may be implemented as follows: hook portions are provided at both ends of the first spring 74, and ring portions capable of hooking and releasing from the ring portions are provided on end surfaces of the first stopper 71 and the seal block 75 facing each other.

Further, the sealing block 75 is made of a rubber material, and has a cylindrical structure, and a through hole 751 penetrating along the axis thereof is formed in the center thereof. In order to make the sealing block 75 have a certain tightening force on the sliding column 73, the diameter of the through hole 751 is set to be slightly smaller than the diameter of the sliding column 73.

In order to facilitate the installation of the sealing block 75 on the sliding column 73, in an alternative embodiment, as shown in fig. 8, a side wall of the sealing block 75 is provided with a notch 752 axially distributed along the sealing block 75, and the notch 752 is communicated with the through hole 751. Thus, the sealing block 75 can be fitted over the sliding column 73 via the gap. Since the sealing block 75 is made of a rubber material. Therefore, it has the ability to deform and recover to its original shape. It should be noted that the gap is not too wide.

In another alternative embodiment, as shown in fig. 9, a slit 753 extending axially along the sealing block 75 is provided in a sidewall of the sealing block 75, and the slit 753 communicates with the through hole 751. Preferably, the slot 753 is toothed in shape. The two portions of the seal block 75 separated by the slit 753 are prevented from being separated in the axial direction thereof by the tooth-like structure.

In order to increase the sealing. A sealing ring is arranged on the circumferential side wall of the sliding block 83, and the sealing ring is made of rubber materials; the periphery of the first limiting block 71 is wrapped with a layer of rubber; and a sealing ring is arranged on the circumferential side wall of the second limiting block 72.

Will the utility model discloses a valve component is applied to specific air compressor after, can realize the noise reduction of its production, and difficult fatigue destruction has prolonged air compressor's life to admitting air and carminative control through second stopper 72 and slider 83.

The specific structure of the air compressor is as follows: as shown in fig. 4 to 7, the air compressor includes a cylinder 10, an intake passage 20 and an exhaust passage 30 respectively communicating with the cylinder 10, a piston 40, a cam 50 and a connecting rod 60 provided in the cylinder 10, an intake valve 70 provided at a connection of the cylinder 10 and the intake passage 20, an exhaust valve 80 provided at a connection of the cylinder 10 and the exhaust passage 30; one end of the connecting rod 60 is hinged with the piston 40, and the other end is hinged with the cam 50; the top wall 11 of the cylinder 10 is provided with an intake port 111 and an exhaust port 112, the intake port 111 communicating with the intake passage 20; the exhaust port 112 communicates with the exhaust passage 30. Wherein, the aperture of the air inlet 111 is gradually increased from top to bottom; the aperture of the exhaust port 112 is gradually reduced from top to bottom.

It should be noted that the shape of the second stopper 72 should be the same as the shape of the air inlet 111, and the shape of the slider 83 should be the same as the shape of the air outlet 112. If the air inlet 111 and the air outlet 112 are both configured in a circular truncated cone shape, the second stopper 72 and the slider 83 are also configured in a circular truncated cone shape.

When in use, the second limit block 72 is installed in the air inlet 111, the sliding column 73 penetrates through the side wall of the air inlet channel 20 and partially extends out of the air inlet channel 20, and the first limit block 71 is located at one end of the sliding column 73 extending out of the air inlet channel 20; the second stopper 72 is located at the air inlet 111. The first spring 74 has a tendency to push the first stopper 71 away from the air inlet 111. Based on the structural limitations of the second stopper 72 and the air inlet 111, the air inlet 111 only allows the second stopper 72 to move back and forth below the top wall 11 of the cylinder 10 from the air inlet 111, and the air inlet 111 is opened or closed by the driving of the piston 40.

In the embodiment without the sealing block 75, one end of the first spring 74 is connected to the first stopper 71, and the other end is connected to the sidewall of the intake passage 20. In the specific embodiment where the sealing block 75 is provided, one end of the first spring 74 is connected to the hook portion of the first stopper 71, and the other end is connected to the sealing block 75.

When in use, as shown in fig. 1, one end of the limiting column 81 is connected with the side wall of the exhaust channel 30, and the other end extends into the exhaust port 112; the slider 83 is shaped to conform to the shape of the exhaust port 112, which is located at the exhaust port 112. One end of the second spring 82 is connected to the side wall of the exhaust passage 30, and the other end is connected to the slider 83, and the second spring 82 has a tendency to push the slider 83 toward the exhaust port 112. Based on the structural constraints of the slider 83 and the exhaust port 112. The exhaust port 112 only allows the slider 83 to move back and forth above the top wall 11 of the cylinder 10 starting from the exhaust port 112, and the exhaust port 112 is opened or closed by the piston 40.

To fill the gap between the spool 73 and the outer wall of the intake passage 20, the sealing performance is improved. A sealing block 75 is movably sleeved on the sliding column 73, and the sealing block 75 is fixedly arranged on the outer wall of the air inlet channel 20. Also, in order to improve the sealing performance, a seal ring is provided on the circumferential side walls of the slider 83 and the second stopper 72.

In addition, the air compressor further includes a cover body 90 covering the cylinder 10, an air tank communicating with the exhaust passage 30, and a motor for driving the cam 50 to rotate to drive the piston 40 to move back and forth in the axial direction of the cylinder 10.

The following brief description illustrates the working process of the valve assembly of the present invention after it is installed on the air compressor:

fig. 5 is a schematic view of the air compressor in a non-operating state. When the driving piston 40 moves downward in the cylinder 10, the air pressure of the cylinder 10 is reduced, and the second stopper 72 moves downward, being separated from the air inlet 111. The second stopper 72 has a limited range of downward movement based on the restriction of the first stopper 71 and the exhaust port 112. At this time, the state shown in fig. 6 is assumed, and intake air is realized. When the piston 40 is driven to move upward, the air pressure of the cylinder 10 increases, the second stopper 72 returns to the air inlet 111 to close the air inlet 111, and the slider 83 moves upward to open the air outlet 112. Based on the limitation of the air inlet 111, the second stopper 72 cannot move upwards, and the process is an exhaust process, and the state is shown in fig. 7. The circulation realizes air intake and exhaust, and high-pressure gas can be stored for later use based on the arrangement of the gas storage tank.

It should be noted that the "upward movement" and "downward movement" refer to the orientation of fig. 4.

Through the technical scheme, the air inlet and the air exhaust of the air compressor can be controlled through the air inlet valve 70 and the air exhaust valve 80, the noise generated by the air compressor is reduced, the air compressor is not easy to fatigue and damage, and the service life of the air compressor is prolonged.

The above detailed description describes the preferred embodiments of the present invention, but the present invention is not limited to the details of the above embodiments, and the technical idea of the present invention can be within the scope of the present invention, and can be right to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations.

In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.

Claims

1. A valve assembly comprising an intake valve and an exhaust valve;

the air inlet valve comprises a first limiting block (71), a second limiting block (72), a sliding column (73) and a first spring (74); the sliding column (73) penetrates through the inner space of the first spring (74), one end of the sliding column is connected with the first limiting block (71), the other end of the sliding column is fixedly connected with the second limiting block (72), and one end of the first spring (74) is fixedly connected with the first limiting block (71); the second limiting block (72) is of a circular truncated cone structure, and the upper bottom surface of the second limiting block is fixedly connected with the sliding column (73);

the exhaust valve comprises a limiting column (81), a second spring (82) sleeved on the limiting column (81) and a sliding block (83) movably sleeved on the limiting column (81); the sliding block (83) is of a round table body structure, the lower bottom surface of the sliding block faces upwards, and one end of the second spring (82) is fixedly connected with the lower bottom surface.

2. A valve assembly according to claim 1, wherein the slide (83) is provided with a channel running through along its axis, the cross section of the channel being the same as the cross section of the limiting column (81); the limiting column (81) can extend into the channel and can slide in the channel.

3. A valve assembly according to claim 2, wherein the channel is circular or rectangular in cross-section.

4. A valve assembly according to claim 2, wherein the sliding column (73) is movably sleeved with a sealing block (75), the sealing block (75) is positioned between the first limiting block (71) and the second limiting block (72), and the other end of the first spring (74) opposite to the first limiting block (71) is connected with the sealing block (75).

5. A valve assembly according to claim 4, wherein both ends of the first spring (74) are provided with hook portions, and end faces of the first stopper (71) and the sealing block (75) facing each other are provided with ring portions on which the hook portions can be hooked.

6. A valve assembly according to claim 4, wherein the sealing block (75) is made of rubber material and is of cylindrical structure with a through hole (751) centrally arranged along its axis, the diameter of the through hole (751) being slightly smaller than the diameter of the sliding column (73).

7. Valve assembly according to claim 6, wherein the sealing block (75) is provided with a notch (752) on its side wall, axially distributed along the sealing block (75), said notch (752) communicating with said through hole (751).

8. The valve assembly of claim 6, wherein the sealing block (75) has a slot (753) formed in a sidewall thereof extending axially along the sealing block (75), the slot (753) communicating with the through hole (751).

9. A valve assembly according to claim 8, wherein the slit (753) is of toothed configuration.

10. A valve assembly according to claim 1, wherein the peripheral side wall of the slide (83) is provided with a sealing ring made of rubber material;

the periphery of the first limiting block (71) is wrapped with a layer of rubber; and a sealing ring is arranged on the circumferential side wall of the second limiting block (72).