CN108131476B - Air valve - Google Patents
Air valve Download PDFInfo
- Publication number
- CN108131476B CN108131476B CN201810147944.XA CN201810147944A CN108131476B CN 108131476 B CN108131476 B CN 108131476B CN 201810147944 A CN201810147944 A CN 201810147944A CN 108131476 B CN108131476 B CN 108131476B
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- Prior art keywords
- air inlet
- piece
- valve
- inlet piece
- valve seat
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0406—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded in the form of balls
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0413—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded in the form of closure plates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0433—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with vibration preventing means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/044—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with more than one spring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/04—Means in valves for absorbing fluid energy for decreasing pressure or noise level, the throttle being incorporated in the closure member
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The invention relates to an air valve, which comprises a front mechanism and a rear mechanism which are sequentially connected, wherein the front mechanism comprises a first air inlet piece, the first air inlet piece comprises an air inlet channel, the rear mechanism comprises a valve seat and a second air inlet piece which is at least partially arranged in the valve seat, the valve seat comprises an air outlet channel, the valve seat and the second air inlet piece are matched to form a cavity, one end of the cavity is communicated with the air inlet channel, the other end of the cavity is communicated with the air outlet channel, the rear mechanism further comprises a valve plate and a valve plate protection assembly, the valve plate is accommodated in the air outlet end of the second air inlet piece, and the valve plate protection assembly is accommodated in the second air inlet piece.
Description
Technical Field
The invention belongs to the field of gas control equipment, and particularly relates to an air valve.
Background
The air valve is an important component on the compressor cylinder and is responsible for sucking and discharging air, and the traditional air valve consists of a valve seat, a valve sheet, a spring and the like.
Many medical devices are pneumatic tools, so the air valve is widely applied in the field of medical devices. The stability of the pneumatic tool will directly affect the accuracy of the procedure and serious one even affects the patient's life safety, while the accuracy of the pneumatic tool use depends in part on the control of the air flow, i.e. the choice of air valve.
The opening and closing of the air valve are realized by means of pressure difference between the air inlet end and the air outlet end, so that the service life and the working performance of the air valve are directly influenced by the internal structure of the air valve, particularly the quality and the arrangement mode of the valve plate, the service life of the existing air valve is short, the working performance is low, and the air valve with reliable and stable work and long service life is required to be found.
Disclosure of Invention
The invention aims to solve the technical problem of providing an air valve which can effectively prolong the service life of a valve plate and prolong the service life of the air valve.
In order to solve the problems, the invention provides an air valve, which comprises a front mechanism and a rear mechanism which are sequentially connected, wherein the front mechanism comprises a first air inlet piece, the first air inlet piece comprises an air inlet channel, the rear mechanism comprises a valve seat and a second air inlet piece which is at least partially arranged in the valve seat, the valve seat comprises an air outlet channel, the valve seat and the second air inlet piece are matched to form a cavity, one end of the cavity is communicated with the air inlet channel, the other end of the cavity is communicated with the air outlet channel, the rear mechanism further comprises a valve plate and a valve plate protection assembly which is arranged at the front end of the valve plate, the valve plate is accommodated in the air outlet end of the second air inlet piece, and the valve plate protection assembly is accommodated in the second air inlet piece.
In addition, the invention also provides the following technical scheme:
further, the valve block protection assembly comprises an air inlet column and a first spring connected with the air inlet column, wherein one end of the first spring is abutted against the valve block, and the other end of the first spring is abutted against the air inlet column.
Further, the air inlet column comprises a spherical end face, the second air inlet piece comprises an annular flange arranged in the second air inlet piece, and the spherical end face and the annular flange are in movable fit to form a first channel.
Further, the air inlet column further comprises a plate end face connected with the spherical end face, each corner of the plate end face is abutted against the inner wall of the second air inlet piece, a second channel is formed between each side of the plate end face and the inner wall of the second air inlet piece, and the second channel is communicated with the first channel.
Further, the valve plate protection assembly further comprises a first sealing ring embedded in the air inlet end of the second air inlet piece, and the first sealing ring is matched with the spherical end face.
Further, the rear mechanism further comprises a gas buffer assembly, wherein the gas buffer assembly is arranged in the cavity, one end of the gas buffer assembly is movably connected with the gas outlet end of the second gas inlet piece, and the other end of the gas buffer assembly is abutted to the valve seat.
Further, the gas buffering component comprises a stop block and a second spring, the stop block is matched with the air outlet end of the second air inlet piece, one end of the second spring is abutted against the stop block, and the other end of the second spring is abutted against the valve seat.
Further, the stop block is of a cap-shaped structure, a third channel is formed between the stop block and the second air inlet piece, and a fourth channel is formed between the stop block and the side wall of the valve seat.
Further, the rear mechanism further comprises a sealing element and a clamp spring which are sequentially sleeved at the joint of the valve seat and the second air inlet piece, and the sealing element and the clamp spring are matched with the inner wall of the valve seat.
Further, the rear mechanism further comprises a fixing sleeve sleeved outside the valve seat and a cover plate sleeved between the valve seat and the first air inlet piece, and the fixing sleeve, the cover plate and the first air inlet piece are fixedly connected.
The invention has the beneficial effects that:
the invention provides an air valve, which is improved aiming at the prior art and has the following advantages:
1. the valve protected by the invention comprises a front mechanism and a rear mechanism which are sequentially connected, wherein the front mechanism comprises a first air inlet piece, the first air inlet piece comprises an air inlet channel, the rear mechanism comprises a valve seat and a second air inlet piece at least partially arranged in the valve seat, the valve seat comprises an air outlet channel, the valve seat and the second air inlet piece are matched to form a cavity, one end of the cavity is communicated with the air inlet channel, the other end of the cavity is communicated with the air outlet channel, the rear mechanism further comprises a valve sheet and a valve sheet protection assembly, the valve sheet is accommodated in the air outlet end of the second air inlet piece, and the valve sheet protection assembly is accommodated in the second air inlet piece.
2. The air inlet column comprises a spherical end face, the second air inlet piece comprises an annular flange arranged in the second air inlet piece, and the spherical end face and the annular flange are movably matched to form a first channel; the air inlet column further comprises a plate end face connected with the spherical end face, each corner of the plate end face is abutted against the inner wall of the second air inlet piece, each side of the plate end face is tightly abutted against the inner wall of the second air inlet piece, a second channel is formed between each side of the plate end face and the inner wall of the second air inlet piece, the second channel is communicated with the first channel, the second channels comprise a plurality of air flows which can flow in the second channels, so that the air flow speed can be well reduced, the damping effect is achieved, and therefore the working efficiency and the working reliability of the air valve are improved.
3. The rear mechanism further comprises a gas buffer assembly, wherein the gas buffer assembly is arranged in the cavity, one end of the gas buffer assembly is movably connected with the air outlet end of the second air inlet piece, and the other end of the gas buffer assembly is abutted against the valve seat; the gas buffer assembly comprises a stop block and a second spring, the stop block is matched with the air outlet end of the second air inlet piece, one end of the second spring is abutted against the stop block, and the other end of the second spring is abutted against the valve seat; the stop block is of a cap-shaped structure, a third channel is formed by the stop block and the second air inlet piece, and a fourth channel is formed by the stop block and the side wall of the valve seat; the stop block is arranged, so that the speed of air flow can be reduced, and the shock-absorbing effect is achieved, thereby further improving the working efficiency and the working reliability of the air valve.
Drawings
FIG. 1 is a schematic diagram of an air valve according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a gas valve in an embodiment of the invention;
FIG. 3 is a cross-sectional view of another cross-section of a gas valve in accordance with an embodiment of the present invention;
FIG. 4 is a perspective assembly view of the front mechanism in an embodiment of the invention;
FIG. 5 is a perspective assembly view of a rear mechanism in an embodiment of the invention;
fig. 6 is a schematic structural view of a fixing sleeve according to an embodiment of the present invention.
The specific embodiment is as follows:
examples: the present invention provides a gas valve, and this embodiment will be described in further detail below with reference to the accompanying drawings.
As shown in fig. 1 to 6, the present embodiment provides an air valve comprising a front mechanism 1 and a rear mechanism 5 connected in sequence, the front mechanism 1 being connected to a compressor, the rear mechanism 5 being connected to a pneumatic tool.
The front mechanism 1 comprises a first air inlet piece 11, a compression piece 13, a connecting piece 14 and a front cover 15, wherein the connecting piece 14 is sleeved on the first air inlet piece 11, the compression piece 13 is connected between the connecting piece 14 and the first air inlet piece 11, and the front cover 15 is sleeved on the connecting piece 14.
In particular, the first air intake member 11 is preferably a plastic air intake member so as to make the overall structure of the air valve lightweight. The first air intake 11 includes a hollow cylinder 111 and an annular mounting surface 112. Therein, a hollow cylinder 111 is provided with an inlet passage 12 inside for gas to pass into the valve body.
The surface of the hollow cylinder 111 is provided with radial square holes 113. The side surface of the connecting piece 14 is provided with a groove 141 and a buckling part 142, the connecting piece 14 is sleeved on the first air inlet piece 11 and is pressed tightly with the annular mounting surface 112, and the connecting piece 14 is respectively plugged into the radial square holes 113 through two first cylindrical pins 16 and is clamped with the groove 141, so that the first air inlet piece 11 is fixed with the connecting piece 14 and the compression piece 13 is contracted. The front cover 15 includes an annular slot 151 and a clamping hole 152 disposed on a side surface, the annular slot 151 is matched with the lower bottom surface of the connecting piece 14, and the clamping hole 152 is matched with the clamping part 142. When the connector is installed, the connector is inserted into the annular slot 151, and the buckling part 142 is clamped into the clamping hole 152 so as to fixedly connect the connector 14 with the front cover 15.
The front mechanism 1 further comprises a screw 17 vertically penetrating the annular mounting surface 112 and a second cylindrical pin 18, wherein the screw 17 is used for connecting the first air inlet piece 11 and the rear mechanism 5, one end of the second cylindrical pin 18 vertically penetrates the annular mounting surface 112, and the other end of the second cylindrical pin is penetrated on the front cover 15, so that radial positioning between the first air inlet piece 11 and the front cover 15 is realized.
The rear mechanism 5 comprises a valve seat 51 and a second air inlet piece 52 at least partially arranged in the valve seat 51, the valve seat 51 comprises an air outlet channel 53, the valve seat 51 and the second air inlet piece 52 are matched to form a cavity 54, one end of the cavity 54 is communicated with the air inlet channel 12, and the other end of the cavity 54 is communicated with the air outlet channel 53. The rear mechanism 5 further comprises a valve plate 55 accommodated at the air outlet end of the second air inlet piece 52, a valve plate protection assembly 56 accommodated in the second air inlet piece 52, and a gas buffer assembly 58 which is arranged in the cavity 54, one end of which is movably connected with the air outlet end of the second air inlet piece 52, and the other end of which is abutted against the valve seat 51. The valve plate protection assembly 56 is disposed at the front end of the valve plate 55, and the gas buffer assembly 58 is disposed at the rear end of the valve plate 55.
Specifically, the valve plate protection assembly 56 includes an air inlet column 61, a first sealing ring 62 embedded in the air inlet end of the second air inlet piece 52 and movably matched with one end of the air inlet column 61, and a first spring 63 arranged at the other end of the air inlet column 61, wherein one end of the first spring 63 abuts against the valve plate 55, and the other end abuts against the air inlet column 61. The intake column 61 includes a spherical end surface 64 and a plate end surface 65 connected to the spherical end surface 64, and the first seal ring 62 cooperates with the spherical end surface 64 to ensure tightness between the intake column 61 and the second intake member 52 when no intake air is present. The second air inlet piece 52 comprises an annular flange 57 arranged in the second air inlet piece, the annular flange 57 is matched with the spherical end face to form a first channel 67, corners of the plate end face 65 are abutted against the inner wall of the second air inlet piece 52, a second channel 66 is formed between each side of the plate end face 65 and the inner wall of the second air inlet piece 52, and the first channel 67 is communicated with the second channel 66.
In this embodiment, the plate end face 65 is preferably rectangular, so four second channels 66 with the same size are formed between four sides of the plate end face 65 and the inner wall of the second air inlet piece 52, and thus air flows can flow into the four second channels 66 respectively, so that the air flow speed can be well reduced, the damping effect is achieved, and the working efficiency and the working reliability of the air valve are improved.
The gas buffering component 58 comprises a stop block 71 and a second spring 72, wherein the stop block 71 is matched with the air outlet end of the second air inlet piece 52, one end of the second spring 72 is abutted against the stop block 71, and the other end of the second spring is abutted against the valve seat 51. The stopper 71 has a cap-shaped structure, the stopper 71 and the second air intake member 52 form a third channel 73, and the stopper 71 and the side wall of the valve seat 51 form a fourth channel 74. The stop 71 also reduces the air flow rate and changes the direction of the air flow through the fourth side passage 74, thereby providing shock absorption and improving the operational stability of the air valve.
The first spring 63 and the second spring 72 are preferably tower springs, and in this embodiment, the small end is disposed at the front end, and the large end is disposed at the rear end. The tower spring has small volume, large load and damping effect.
The rear mechanism 5 further comprises a sealing element 75 and a clamp spring 76 which are sequentially sleeved at the joint of the valve seat 51 and the second air inlet piece 52, and the sealing element 75 and the clamp spring 76 are matched with the inner wall of the valve seat 51. The valve seat 51 includes a first and a second clamping groove that cooperate with the seal 75 and the clamp spring 76, respectively. The arrangement of the sealing element 75 ensures the air tightness between the valve seat 51 and the second air inlet piece 52, and the arrangement of the clamp spring 76 not only limits the movement of the sealing element 75, but also ensures the installation stability between the valve seat 51 and the second air inlet piece 52.
The rear mechanism 5 further comprises a fixing sleeve 81 sleeved outside the valve seat 51 and a cover plate 82 sleeved between the valve seat 51 and the first air inlet piece 11, wherein the fixing sleeve 81, the cover plate 82 and the first air inlet piece 11 are fixedly connected, and the fixed connection among the fixing sleeve 81, the cover plate 82 and the first air inlet piece 11 is realized by the screws 17 arranged in pairs. The fixing sleeve 81 includes a corresponding mounting hole and a threaded sleeve 68 disposed in the mounting hole and engaged with the screw 17.
The rear mechanism 5 further comprises an exhaust pipeline 59 arranged on the air outlet channel 53 and a screw sleeve 60 arranged at one end of the exhaust pipeline 59, wherein the screw sleeve 60 is connected with a pneumatic tool through an air pipe, and a second sealing ring 69 is embedded in a groove of the exhaust pipeline 59.
When the air valve is installed, the front mechanism 1 is installed first, the compression piece 13 is sleeved on the first air inlet piece 11, the first air inlet piece 11 is inserted from one end of the connecting piece 14 and is pressed tightly, a pair of first cylindrical pins 16 are arranged in the radial square holes 113 in a penetrating mode, and the first cylindrical pins 16 are embedded in the grooves 141 to enable the connecting piece 14 to be fixedly connected with the first air inlet piece 11. The connecting piece 14 is then radially inserted into the annular slot 151, the buckling part 142 is buckled into the buckling hole 152, and the second cylindrical pin 18 is inserted into the front cover 15 to realize radial positioning between the first air inlet piece 11 and the front cover 15.
The rear mechanism 5 is then installed, the second spring 72 is first placed in the valve seat 51, and the large end is first placed. The stop 71 is then placed in it, and the seal 75 and the snap spring 76 are then pressed into the valve seat 51, respectively. The first sealing ring 62 is embedded into the inner groove of the second air inlet piece 52, the air inlet column 61 and the first spring 63 are respectively placed into the hole of the second air inlet piece 52, the air inlet column 61 is placed at the spherical end face 64, the first spring 63 is placed at the small end, and the valve plate 55 is plugged into the hole of the second air inlet piece 52 and tightly matched. The second air intake member 52 is then inserted into the valve seat 51, and the second seal ring 69 is inserted into the groove of the exhaust pipe 59 of the valve seat 51. The valve seat 51 is then connected to the fixing sleeve 81, and the fixing sleeve 81, the first air inlet member 11 and the cover plate 82 are fixedly connected by the screws 17. The exhaust conduit 59 is then connected to the threaded sleeve 60, and the exhaust conduit 59 is welded to the valve seat 51.
In use, compressed gas enters from the first air inlet piece 11, when a certain pressure is reached, the air inlet column 61 is jacked up, the spherical end face 64 of the air inlet column 61 is separated from the first sealing ring 62, the gas sequentially passes through the first channel 67, the second channel 66 and acts on the valve plate 55, the air flow passing through the valve plate 55 acts on the stop block 71, when a certain pressure is reached, the stop block 71 is jacked up, the gas enters the cavity 54, and then the gas enters the air outlet channel 53 through the third channel 73 and the fourth channel 74.
The valve protected in this embodiment is provided with the valve plate protecting component, so that in the air inlet process, the valve plate protecting component 56 has a buffer effect on the air flow, and when the air flow pressure is high, the valve plate 55 is prevented from being deformed due to high pressure, so that the valve plate is protected, and the service life of the valve plate is prolonged.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the invention, such changes and modifications are also intended to be within the scope of the invention.
Claims (6)
1. An air valve comprising a front mechanism (1) and a rear mechanism (5) which are connected in sequence, wherein the front mechanism (1) comprises a first air inlet piece (11), and the first air inlet piece (11) comprises an air inlet channel (12), and is characterized in that: the rear mechanism (5) comprises a valve seat (51) and a second air inlet piece (52) at least partially arranged in the valve seat (51), the valve seat (51) comprises an air outlet channel (53), the valve seat (51) and the second air inlet piece (52) are matched to form a cavity (54), one end of the cavity (54) is communicated with the air inlet channel (12), the other end of the cavity is communicated with the air outlet channel (53), the rear mechanism (5) further comprises a valve plate (55) and a valve plate protection assembly (56) arranged at the front end of the valve plate (55), the valve plate (55) is accommodated in the air outlet end of the second air inlet piece (52), and the valve plate protection assembly (56) is accommodated in the second air inlet piece (52);
the valve plate protection assembly (56) comprises an air inlet column (61) and a first spring (63) connected with the air inlet column (61), wherein one end of the first spring (63) is abutted against the valve plate (55) and the other end of the first spring is abutted against the air inlet column (61); the air inlet column (61) comprises a spherical end surface (64), the second air inlet piece (52) comprises an annular flange (57) arranged in the second air inlet piece, and the spherical end surface (64) and the annular flange (57) are in movable fit to form a first channel; the air inlet column (61) further comprises a plate end face (65) connected with the spherical end face (64), each corner of the plate end face (65) is abutted against the inner wall of the second air inlet piece (52), a second channel is formed between each side of the plate end face (65) and the inner wall of the second air inlet piece (52), and the second channel is communicated with the first channel; the valve plate protection assembly (56) further comprises a first sealing ring (62) embedded in the air inlet end of the second air inlet piece (52), and the first sealing ring (62) is matched with the spherical end face (64);
the front mechanism (1) comprises a first air inlet piece (11), a compression piece (13), a connecting piece (14) and a front cover (15), wherein the connecting piece (14) is sleeved on the first air inlet piece (11), the compression piece (13) is connected between the connecting piece (14) and the first air inlet piece (11), and the front cover (15) is sleeved on the connecting piece (14); the front mechanism (1) further comprises a screw (17) vertically penetrating through the annular mounting surface (112) and a second cylindrical pin (18), wherein the screw (17) is used for connecting the first air inlet piece (11) with the rear mechanism (5), one end of the second cylindrical pin (18) vertically penetrates through the annular mounting surface (112), and the other end of the second cylindrical pin penetrates through the front cover (15).
2. The gas valve according to claim 1, wherein: the rear mechanism (5) further comprises a gas buffer assembly (58), wherein the gas buffer assembly (58) is arranged in the cavity (54) and one end of the gas buffer assembly is movably connected with the gas outlet end of the second gas inlet piece (52), and the other end of the gas buffer assembly is abutted against the valve seat (51).
3. The gas valve according to claim 2, wherein: the gas buffering assembly (58) comprises a stop block (71) and a second spring (72), the stop block (71) is matched with the gas outlet end of the second gas inlet piece (52), one end of the second spring (72) is abutted against the stop block (71), and the other end of the second spring is abutted against the valve seat (51).
4. A gas valve according to claim 3, wherein: the stop block (71) is of a cap-shaped structure, the stop block (71) and the second air inlet piece (52) form a third channel, and the stop block (71) and the side wall of the valve seat (51) form a fourth channel.
5. The gas valve according to claim 1, wherein: the rear mechanism (5) further comprises a sealing piece (75) and a clamp spring (76) which are sequentially sleeved at the joint of the valve seat (51) and the second air inlet piece (52), and the sealing piece (75) and the clamp spring (76) are matched with the inner wall of the valve seat (51).
6. The gas valve according to claim 1, wherein: the rear mechanism (5) further comprises a fixing sleeve (81) sleeved outside the valve seat (51) and a cover plate (82) sleeved between the valve seat (51) and the first air inlet piece (11), and the fixing sleeve (81), the cover plate (82) and the first air inlet piece (11) are fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810147944.XA CN108131476B (en) | 2018-02-12 | 2018-02-12 | Air valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810147944.XA CN108131476B (en) | 2018-02-12 | 2018-02-12 | Air valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108131476A CN108131476A (en) | 2018-06-08 |
| CN108131476B true CN108131476B (en) | 2023-09-12 |
Family
ID=62430942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810147944.XA Active CN108131476B (en) | 2018-02-12 | 2018-02-12 | Air valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108131476B (en) |
Citations (6)
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|---|---|---|---|---|
| US6283094B1 (en) * | 1998-07-02 | 2001-09-04 | Robert Bosch Gmbh | Pressure valve |
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| DE102014214182A1 (en) * | 2014-07-02 | 2016-01-07 | Continental Teves Ag & Co. Ohg | Valve |
| CN205064958U (en) * | 2015-10-20 | 2016-03-02 | 德耐尔压缩机制造（上海）有限公司 | Pressure control valve |
| CN205534288U (en) * | 2016-02-02 | 2016-08-31 | 广州市海纶特精机有限公司 | Improved generation hydraulic valve |
| CN208010993U (en) * | 2018-02-12 | 2018-10-26 | 苏州益诺斯医疗科技有限公司 | A kind of air valve |
-
2018
- 2018-02-12 CN CN201810147944.XA patent/CN108131476B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6283094B1 (en) * | 1998-07-02 | 2001-09-04 | Robert Bosch Gmbh | Pressure valve |
| DE102014214182A1 (en) * | 2014-07-02 | 2016-01-07 | Continental Teves Ag & Co. Ohg | Valve |
| CN104964072A (en) * | 2015-07-15 | 2015-10-07 | 宁波布拉沃冲气具制造有限公司 | Connecting part for connecting inflating pump and inflating product |
| CN205064958U (en) * | 2015-10-20 | 2016-03-02 | 德耐尔压缩机制造（上海）有限公司 | Pressure control valve |
| CN205534288U (en) * | 2016-02-02 | 2016-08-31 | 广州市海纶特精机有限公司 | Improved generation hydraulic valve |
| CN208010993U (en) * | 2018-02-12 | 2018-10-26 | 苏州益诺斯医疗科技有限公司 | A kind of air valve |
Non-Patent Citations (1)
| Title |
|---|
| 往复式压缩机气阀失效形式及故障诊断;高京卫;韩毅;;天然气技术(第06期);第74-76页 * |
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