CN219391276U - Test mechanism for air booster valve for vehicle - Google Patents

Abstract

The utility model relates to the technical field of valve body detection, and discloses a testing mechanism of an air booster valve for a vehicle. The testing mechanism of the air booster valve for the vehicle is used for testing the air booster valve for the vehicle, and the pressure-maintaining leakage testing device comprises a first compression joint assembly and a first base. The first crimping assembly is provided with a first accommodating cavity, the side wall of the first accommodating cavity is provided with a first detection channel, and the first detection channel is connected with the leakage tester; the first base is provided with a second accommodating cavity and a first air passage, one end of the first air passage is communicated with the second accommodating cavity, and the other end of the first air passage is connected with the first air pump; the first crimping subassembly and the first base seal crimping are in the both sides of flange, and the first end of automobile-used air booster valve is located the second and holds the intracavity, and the second end of automobile-used air booster valve is located the first and holds the intracavity. The utility model simplifies the preparation work before measurement, realizes the measurement and lifting of the air booster valve for the vehicle, and compresses the measurement time; and a relatively accurate leakage condition is obtained by observing the leakage meter display.

Description

Test mechanism for air booster valve for vehicle

Technical Field

The utility model relates to the technical field of valve body detection, in particular to a testing mechanism of an air booster valve for a vehicle.

Background

In the prior art, a piston type booster valve taking compressed air as a power source is used, when air is taken in, a valve core of the booster pneumatic control valve is switched to work in a reciprocating mode, a piston of the booster valve is controlled to do reciprocating motion at extremely high speed, and the reciprocating speed of the piston is slowed down until the piston stops along with the increase of output pressure. At the moment, the output pressure of the booster valve reaches constant, the energy consumption reaches the minimum, and each part stops working; and no matter what causes the pressure of the pressure maintaining loop to be reduced, the pressure increasing valve can be automatically started to supplement the leakage pressure, so that the pressure of the loop is kept constant.

Before the booster valve leaves the factory, the booster valve needs to be tested, the conventional detection method of the booster valve adopts a simple detection device, the detection device comprises a pressure gauge and a valve, when the detection is carried out, the pressure gauge and the valve are arranged at an air inlet and an air outlet of the booster valve through high-pressure pipes, the opening and closing conditions of the valve need to be controlled manually to supply air for the booster valve, and meanwhile, the pressure condition of the pressure gauge is checked, so that whether the booster valve leaks air or not is judged. However, manual control of the opening and closing of the valve is inefficient, and because of the small volume of the booster valve, the quality control requirements for the amount of leakage are difficult to find through simple pressure testing, increasing undetected safety risks.

Based on this, there is a need for a testing mechanism for an air pressure increasing valve for a vehicle, so as to solve the above-mentioned problems.

Disclosure of Invention

Based on the above, the utility model aims to provide a testing mechanism for an air booster valve for a vehicle, which realizes that the air booster valve for the vehicle can be put and lifted as required and the time is measured in a compression way; and a relatively accurate leakage condition is obtained by observing the leakage meter display.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an automobile-used air pressure boost valve testing arrangement for test automobile-used air pressure boost valve, automobile-used air pressure boost valve includes the casing, be provided with the gas passage in the casing, the air inlet of gas passage is located automobile-used air pressure boost valve's first end, the gas vent of gas passage set up in the lateral wall of casing, the outer wall of casing is provided with the flange, the air inlet with the gas vent is located one side of flange; the second end of the vehicular air booster valve is welded with a guide cover, a valve core is slidably arranged in the air channel, a flow hole is formed in the air channel, and the valve core can block or open the flow hole; the air booster valve testing mechanism for the vehicle comprises a pressure maintaining leakage testing device, wherein the pressure maintaining leakage testing device comprises:

the first crimping assembly is provided with a first accommodating cavity, the side wall of the first accommodating cavity is provided with a first detection channel, and the first detection channel is connected with the leakage tester;

the first base is provided with a second accommodating cavity and a first air passage, one end of the first air passage is communicated with the second accommodating cavity, and the other end of the first air passage is connected with a first air pump;

the first compression joint assembly and the first base are in sealing compression joint with both sides of the flange, the first end of the vehicle air booster valve is located in the second containing cavity, and the second end of the vehicle air booster valve is located in the first containing cavity.

As an optimization technical scheme of automobile-used air pressure boost valve testing mechanism, first crimping subassembly includes first pressure head and first locating block, first locating block sealing connection in the bottom of first pressure head, first pressure head with form jointly on the first locating block first accommodation chamber, first locating block is kept away from one side of first pressure head is provided with the imitative groove, the imitative groove with the shape phase-match of flange, first pressure head drives first locating block the imitative groove pressure joint in the flange.

As an optimized technical scheme of the testing mechanism of the air booster valve for the vehicle, the pressure-maintaining leakage testing device further comprises a first gasket, and the first gasket is installed on the end face, close to the first compression joint assembly, of the first base.

As an preferable technical scheme of automobile-used air pressure boost valve testing mechanism, pressurize leakage testing arrangement still includes detection subassembly, detection subassembly is including detecting support and photoelectric sensor, it is fixed with to detect support one end on the first base, the other end photoelectric sensor is fixed with, photoelectric sensor is used for detecting the distance that pushes down of first crimping subassembly.

As a preferable technical scheme of the test mechanism of the air booster valve for the vehicle, the test mechanism further comprises a valve core leakage test device, wherein the valve core leakage test device comprises:

a second crimp assembly provided with a third receiving cavity;

the base assembly is provided with a fourth accommodating cavity and a second air channel, one end of the second air channel is communicated with the second accommodating cavity, and the other end of the second air channel is connected with a second air pump; a second detection channel is arranged on the side wall of the fourth accommodating cavity, one end of the second detection channel is communicated with the exhaust port, and the other end of the second detection channel is connected with a leakage tester;

the second crimping assembly and the base assembly are in sealing crimping connection with two sides of the flange, the first end of the vehicle air booster valve is located in the fourth containing cavity, and the second end of the vehicle air booster valve is located in the third containing cavity.

As an preferable technical scheme of the test mechanism of the air booster valve for the vehicle, the valve core leakage test device further comprises a driving unit, wherein the driving unit is arranged in the second compression joint assembly and is used for driving the valve core to block the circulation hole;

the second detection channel is connected to the third air pump through a pipeline, and an air pressure gauge is arranged on the pipeline.

As a preferable technical scheme of the test mechanism of the air booster valve for the vehicle, the valve core leakage test device further comprises a piston, wherein the base assembly comprises a second base and a sealing block, the sealing block is provided with a first guide hole, and the second base is provided with a second guide hole;

the piston is connected to the first guide hole in a sliding manner, a first sealing ring is arranged on the piston and the side wall of the first guide hole, and the bottom of the piston stretches into the second guide hole;

the fourth accommodating cavity is arranged on the sealing block, and a second sealing ring is arranged between the first end of the vehicle air booster valve and the side wall of the fourth accommodating cavity;

the second base is provided with a third air passage, one end of the third air passage is communicated with the bottom of the piston, the other end of the third air passage is connected with a fourth air pump, and the fourth air pump can drive the piston to be abutted to the second sealing ring.

As a preferable technical scheme of the testing mechanism of the air booster valve for the vehicle, the sealing block is provided with a third detection channel, and a detection port, communicated with the first guide hole, of the third detection channel is positioned between the first sealing ring and the second sealing ring;

and one end of the third detection channel, which is far away from the detection port, is communicated with the leakage tester.

As an optimal technical scheme of the test mechanism of the air booster valve for the vehicle, two valve core leakage test devices are adopted, wherein a second detection channel of one valve core leakage test device is connected with the leakage tester, and a second detection channel of the other valve core leakage test device is connected with a third air pump through a pipeline.

As a preferable technical scheme of the testing mechanism of the air booster valve for the vehicle, the testing mechanism further comprises a support, wherein the support comprises a top plate, a cylinder is installed on the top plate, a gland is installed at the output end of the cylinder, and the gland is connected with the first compression joint assembly.

The beneficial effects of the utility model are as follows:

the utility model provides a testing mechanism of an air booster valve for a vehicle, which is characterized in that during detection, a first compression joint assembly is separated from a first base, then a first end of the air booster valve for the vehicle is placed into a second accommodating cavity, then the first compression joint assembly is driven to be in sealing compression joint with a flange of a shell, a second end of the air booster valve for the vehicle is positioned in the first accommodating cavity, then a first air pump ventilates an air inlet of the first end of the air booster valve for the vehicle through a first air path and a second accommodating cavity, a valve core does not block a flow hole at the moment, the flow hole in the air channel is in an open state, a leakage tester detects whether the first accommodating cavity leaks air through a first detection channel, and if the leakage tester detects leakage information, the leakage problem exists between a guide cover and the shell, and the product is poor; otherwise, the leakage tester does not detect the leakage information, and the sealing requirement between the guide cover and the shell is met, so that the product is qualified.

The utility model avoids complex operation caused by the traditional test mode of respectively connecting the pressure gauge and the valve to the high-pressure pipe, greatly simplifies the preparation work before measurement, and can realize the measurement and lifting of the air booster valve for the vehicle and compress the measurement time; the first compression joint assembly is controlled to lift, so that the communication condition of the vehicle air booster valve testing mechanism is controlled, and relatively accurate leakage condition is obtained through observation of leakage appearance display.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings needed in the description of the embodiments of the present utility model, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the contents of the embodiments of the present utility model and these drawings without inventive effort for those skilled in the art.

FIG. 1 is a schematic view of a vehicle air pressure valve according to an embodiment of the present utility model;

FIG. 2 is a schematic structural view of a test mechanism for an air pressure increasing valve for a vehicle according to an embodiment of the present utility model;

FIG. 3 is a cross-sectional view of a dwell leak test device provided in an embodiment of the utility model;

fig. 4 is an enlarged view of fig. 3 at a;

FIG. 5 is a schematic structural view of a valve core leakage testing apparatus according to an embodiment of the present utility model;

fig. 6 is an enlarged view of fig. 5 at B.

The figures are labeled as follows:

10. an air booster valve for a vehicle; 101. a housing; 1011. a flange; 102. a gas channel; 103. an air inlet; 104. an exhaust port; 105. a flow hole; 106. a guide cover; 107. a valve core;

1. pressure maintaining leakage testing device; 11. a first crimping assembly; 111. a first accommodation chamber; 112. a first detection channel; 113. a first ram; 114. a first positioning block; 12. a first base; 121. a second accommodation chamber; 122. a first air path; 13. a first gasket; 14. a detection assembly; 141. detecting a bracket; 142. a photoelectric sensor;

2. a valve core leakage testing device; 21. a second crimping assembly; 211. a third accommodation chamber; 212. a second ram; 213. a second positioning block; 22. a base assembly; 221. a fourth accommodation chamber; 222. a second air path; 223. a second detection channel; 224. a second base; 2241. a second guide hole; 2242. a third air path; 225. a sealing block; 2251. a first guide hole; 2252. a third detection channel; 23. a driving unit; 24. a piston; 25. a first seal ring; 26. a second seal ring;

3. a bracket; 4. a top plate; 5. a cylinder; 6. and (5) pressing cover.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

As shown in fig. 1-4, the present embodiment provides a testing mechanism for an air booster valve for a vehicle, for testing the air booster valve 10 for the vehicle, the air booster valve 10 for the vehicle includes a housing 101, a gas channel 102 is provided in the housing 101, an air inlet 103 of the gas channel 102 is located at a first end of the air booster valve 10 for the vehicle, an air outlet 104 of the gas channel 102 is provided at a side wall of the housing 101, a flange 1011 is provided on an outer wall of the housing 101, and the air inlet 103 and the air outlet 104 are located at one side of the flange 1011; the second end of the vehicle air booster valve 10 is welded with a guide cover 106, a valve core 107 is slidably arranged in the gas channel 102, a flow hole 105 is arranged in the gas channel 102, and the valve core 107 can seal or open the flow hole 105; the testing mechanism of the air booster valve for the vehicle comprises a pressure maintaining leakage testing device 1, wherein the pressure maintaining leakage testing device 1 comprises a first compression joint assembly 11 and a first base 12.

Specifically, the first crimping assembly 11 is provided with a first accommodating cavity 111, a side wall of the first accommodating cavity 111 is provided with a first detection channel 112, and the first detection channel 112 is connected to the leakage tester; the first base 12 is provided with a second accommodating cavity 121 and a first air passage 122, one end of the first air passage 122 is communicated with the second accommodating cavity 121, and the other end is connected with a first air pump; the first compression joint assembly 11 and the first base 12 are in sealing compression joint with two sides of the flange 1011, the first end of the vehicle air pressure increasing valve 10 is positioned in the second accommodating cavity 121, and the second end of the vehicle air pressure increasing valve 10 is positioned in the first accommodating cavity 111. During detection, the first compression joint assembly 11 is separated from the first base 12, then the first end of the vehicle air booster valve 10 is placed into the second accommodating cavity 121, then the first compression joint assembly 11 is driven to be in sealing compression joint with the flange 1011 of the shell 101, the second end of the vehicle air booster valve 10 is positioned in the first accommodating cavity 111, then the first air pump is used for ventilating the air inlet 103 of the first end of the vehicle air booster valve 10 through the first air channel 122 and the second accommodating cavity 121, at the moment, the valve core 107 does not block the flow hole 105, the flow hole 105 in the air channel 102 is in an open state, the leakage tester detects whether the first accommodating cavity 111 leaks through the first detection channel 112, if the leakage tester detects leakage information, the leakage problem exists between the guide cover 106 and the shell 101, and the product is bad; otherwise, the leakage tester does not detect the leakage information, and the sealing requirement between the guide cover 106 and the shell 101 is met, so that the product is qualified. The pressure maintaining leakage testing device 1 realizes high-pressure leakage test detection of a precise valve element to a greater extent through the design of a gas (liquid) pressure loop of the vehicle air booster valve 10; the leakage test requirements of two points of high pressure and low pressure can be met simultaneously; the testing and detecting content can be completed more safely and more accurately, and the product quality and the qualification rate are improved.

Preferably, the first crimping assembly 11 comprises a first pressure head 113 and a first positioning block 114, the first positioning block 114 is connected to the bottom of the first pressure head 113 in a sealing manner, a first accommodating cavity 111 is formed on the first pressure head 113 and the first positioning block 114 together, a profiling groove is formed on one side, far away from the first pressure head 113, of the first positioning block 114, the profiling groove is matched with the shape of the flange 1011, the profiling groove of the first positioning block 114 is driven by the first pressure head 113 to be in press connection with the flange 1011, and the installation accuracy of the vehicle air booster valve 10 is improved through the profiling groove. A sealing ring is arranged between the first pressure head 113 and the first positioning block 114, and the first pressure head 113 and the first positioning block 114 can be connected through screws, so that the first positioning block 114 is in sealing connection with the bottom of the first pressure head 113.

Since the first press-fit assembly 11 is frequently pressed against the first base 12, the end face of the second base 224 is easily damaged, and further preferably, the pressure-maintaining leakage testing apparatus 1 further includes a first gasket 13, and the first gasket 13 is mounted on the end face of the first base 12 close to the first press-fit assembly 11. On the one hand, the first pressing assembly 11 presses the first gasket 13 for a long time without contacting the first base 12, so that the service life of the first base 12 is prolonged; on the other hand, by adjusting the thickness of the first gasket 13, the distance between the first press-fit assembly 11 and the first base 12 can be adjusted to meet various types of air pressure increasing valves 10 for vehicles.

Preferably, the pressure maintaining leakage testing device 1 further comprises a detection assembly 14, the detection assembly 14 comprises a detection bracket 141 and a photoelectric sensor 142, one end of the detection bracket 141 is fixed on the first base 12, the other end of the detection bracket is fixed with the photoelectric sensor 142, and the photoelectric sensor 142 is used for detecting the pressing distance of the first pressing assembly 11. The photoelectric sensor 142 can detect that the first press-contact assembly 11 is pressed down to a preset position, then the photoelectric sensor 142 sends a signal to the first air pump, the first air pump supplies air to the air inlet 103 of the air booster valve 10 for the vehicle, and the photoelectric sensor 142 sends a signal for the first detection channel 112 to connect with a leakage tester, and the leakage tester starts to detect leakage information.

Further, as shown in fig. 5 and 6, the air pressure increasing valve testing mechanism for a vehicle further includes a valve core leakage testing device 2, and the valve core leakage testing device 2 includes a second press-connection assembly 21 and a base assembly 22. Specifically, the second crimp assembly 21 is provided with a third accommodation chamber 211; the base assembly 22 is provided with a fourth accommodating cavity 221 and a second air channel 222, one end of the second air channel 222 is communicated with the second accommodating cavity 121, and the other end of the second air channel 222 is connected with a second air pump; the side wall of the fourth accommodating chamber 221 is provided with a second detection channel 223, one end of the second detection channel 223 is communicated with the exhaust port 104, and the other end is connected with a leakage tester; the second press-fit assembly 21 and the base assembly 22 are press-fit in both sides of the flange 1011, the first end of the air pressure increasing valve 10 for vehicle is located in the fourth accommodation chamber 221, and the second end of the air pressure increasing valve 10 for vehicle is located in the third accommodation chamber 211.

The second press-connection assembly 21 has the same structure as the first press-connection assembly 11, the second press-connection assembly 21 includes a second press-head 212 and a second positioning block 213, the second positioning block 213 is connected to the bottom of the second press-head 212 in a sealing manner, a third accommodating cavity 211 is formed on the second press-head 212 and the second positioning block 213, a profiling groove is formed on one side of the second positioning block 213 away from the second press-head 212, the profiling groove is matched with the shape of the flange 1011, and the second press-head 212 drives the profiling groove of the second positioning block 213 to be connected to the flange 1011 in a press-connection manner.

Whether the exhaust port 104 of the vehicle air booster valve 10 is processed or not can be detected by the valve core leakage testing device 2, when the valve core 107 does not block the flow hole 105, the flow hole 105 in the air channel 102 is in an open state, at the moment, 6bar of air is introduced into the air channel through the second air channel 222, at the moment, the leakage tester detects whether the air in the second detection channel 223 is 6bar or not, and if the air pressure of the second detection channel 223 is the same as the air supply pressure of the second air pump, the condition that the vehicle air booster valve 10 is processed with the exhaust port 104 is proved, and the product is qualified; otherwise, the product is unqualified.

Preferably, the valve core leakage testing device 2 further comprises a piston 24, the base assembly 22 comprises a second base 224 and a sealing block 225, the sealing block 225 is provided with a first guide hole 2251, and the second base 224 is provided with a second guide hole 2241; the piston 24 is slidably connected to the first guide hole 2251, a first sealing ring 25 is disposed on the piston 24 and a side wall of the first guide hole 2251, and a bottom of the piston 24 extends into the second guide hole 2241; the fourth accommodating cavity 221 is arranged on the sealing block 225, and a second sealing ring 26 is arranged between the first end of the vehicle air booster valve 10 and the side wall of the fourth accommodating cavity 221, so that the sealing of the first end of the vehicle air booster valve 10 is realized; the second base 224 is provided with a third air passage 2242, one end of the third air passage 2242 is communicated with the bottom of the piston 24, the other end of the third air passage 2242 is connected with a fourth air pump, and the fourth air pump can drive the piston 24 to abut against the second sealing ring 26. The fourth air pump lets in 6.9 bar's gas in to third gas circuit 2242, and drive piston 24 butt is in second sealing washer 26, improves the sealing performance of the first end of vehicle air booster valve 10, prevents the gas of second gas circuit 222 from directly flowing to second detection passageway 223.

Preferably, the sealing block 225 is provided with a third detection channel 2252, and a detection port of the third detection channel 2252 communicating with the first guide hole 2251 is located between the first sealing ring 25 and the second sealing ring 26; one end of the third detection channel 2252 remote from the detection port communicates with the leak tester. When the valve core leakage testing device 2 detects the vehicle air booster valve 10, the leakage tester through the third detection channel 2252 can detect whether the first end of the vehicle air booster valve 10 is in a sealed state, so as to prevent the gas of the second gas circuit 222 from directly flowing to the second detection channel 223, and inaccurate data is caused. The first seal 25 is proved to fail when the leak tester detects a pressure of 6bar in the third test channel 2252, and the first end of the air pressure increasing valve is not sealed, and the second seal 26 is proved to fail when the leak tester detects a pressure of 6.9bar in the third test channel 2252.

Preferably, the valve core leakage testing device 2 further comprises a driving unit 23, wherein the driving unit 23 is arranged in the second crimping assembly 21, and the driving unit 23 is used for driving the valve core 107 to seal the flow hole 105; the second detection channel 223 is connected to the third air pump through a pipeline, and an air pressure gauge is arranged on the pipeline. The driving unit 23 may be a conductive plug, which is disposed in the second press-connection assembly 21, and when the conductive plug is energized, it can provide electromagnetic force to the valve element 107, so as to drive the valve element 107 to block the flow hole 105.

The leakage condition of the air booster valve 10 for the vehicle can be detected through the valve core leakage testing device 2, during detection, the driving unit 23 drives the valve core 107 to block the flow hole 105, the flow hole 105 in the air channel 102 is in a blocking state, 6bar of air is introduced into the second air channel 222 through the second air pump, meanwhile, 2bar of air is introduced into the second detection channel 223 through the pipeline through the third air pump, and if the air pressure in the pipeline is detected to be 2bar by the air pressure meter, no leakage condition of the air booster valve 10 for the vehicle is proved, and the product is qualified; if the barometer detects that the air pressure in the pipeline is higher than 2bar, the leakage condition of the air booster valve 10 for the vehicle is proved, and the product is disqualified.

In this embodiment, the test mechanism for an air booster valve for a vehicle includes a pressure-maintaining leakage test device 1 and two valve core leakage test devices 2, where the pressure-maintaining leakage test device 1 can detect whether there is an air leakage problem between the guide cover 106 and the housing 101 under high pressure or low pressure conditions; the second detection channel 223 of one valve core leakage testing device 2 is connected to a leakage tester and is used for detecting whether the exhaust port 104 of the air booster valve 10 for the vehicle is processed or not; the second detection channel 223 of the other valve core leakage testing device 2 is connected to the third air pump through a pipeline, and an air pressure gauge is arranged on the pipeline and used for detecting the leakage condition of the air booster valve 10 for the vehicle, and the leakage condition of the air booster valve 10 for the vehicle is completely measured from three aspects respectively, so that the measurement efficiency is improved.

As shown in fig. 1-6, the testing mechanism for the air booster valve for the vehicle further comprises a bracket 3, the bracket 3 comprises a top plate 4, a cylinder 5 is installed on the top plate 4, a gland 6 is installed at the output end of the cylinder 5, and the gland 6 is connected to a first compression joint assembly 11. Similarly, the top plate 4 is provided with a plurality of cylinders 5, the pressing covers 6 of the cylinders 5 can be connected to the second pressing assembly 21, the cylinders 5 are respectively in one-to-one correspondence with the pressure maintaining leakage testing device 1 and the valve core leakage testing device 2, and the cylinders 5 are used for respectively driving the first pressing assembly 11 and the second pressing assembly 21 to lift.

The embodiment adopts an integrated structural design, avoids complex operation caused by the traditional test mode of respectively connecting and installing the pressure gauge and the valve on the high-pressure pipe, greatly simplifies the preparation work before measurement, and can realize the measurement and lifting of the air booster valve 10 for the vehicle and compress the measurement time; the gland 6 that sets up can be effectual through the lift of cylinder 5 control first crimping subassembly 11 and second crimping subassembly 21, and then the intercommunication condition of this automobile-used air pressure boost valve testing mechanism of control to obtain relatively accurate leakage condition through observing leakage appearance demonstration.

Note that the above is only a preferred embodiment of the present utility model and the technical principle applied. It will be understood by those skilled in the art that the present utility model is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, while the utility model has been described in connection with the above embodiments, the utility model is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the utility model, which is set forth in the following claims.

Claims (10)

1. The utility model provides an automobile-used air pressure boost valve test mechanism for being directed at automobile-used air pressure boost valve (10), automobile-used air pressure boost valve (10) include casing (101), be provided with gas passage (102) in casing (101), gas passage's (102) air inlet (103) are located automobile-used air pressure boost valve's (10) first end, gas passage's (102) gas vent (104) set up in the lateral wall of casing (101), the outer wall of casing (101) is provided with flange (1011), gas inlet (103) and gas vent (104) are located one side of flange (1011); the second end of the vehicle air booster valve (10) is welded with a guide cover (106), a valve core (107) is slidably arranged in the air channel (102), a flow hole (105) is arranged in the air channel (102), and the valve core (107) can block or open the flow hole (105); the testing mechanism of the air booster valve for the vehicle is characterized by comprising a pressure maintaining leakage testing device (1), wherein the pressure maintaining leakage testing device (1) comprises:

a first crimping assembly (11) provided with a first accommodating cavity (111), wherein a first detection channel (112) is arranged on the side wall of the first accommodating cavity (111), and the first detection channel (112) is connected to a leakage tester;

the first base (12) is provided with a second accommodating cavity (121) and a first air passage (122), one end of the first air passage (122) is communicated with the second accommodating cavity (121), and the other end of the first air passage is connected with a first air pump;

the first compression joint assembly (11) and the first base (12) are in compression joint with two sides of the flange (1011), a first end of the vehicle air booster valve (10) is located in the second accommodating cavity (121), and a second end of the vehicle air booster valve (10) is located in the first accommodating cavity (111).

2. The vehicle air pressure boosting valve testing mechanism according to claim 1, wherein the first pressure welding assembly (11) comprises a first pressure head (113) and a first positioning block (114), the first positioning block (114) is connected to the bottom of the first pressure head (113) in a sealing mode, the first pressure head (113) and the first positioning block (114) jointly form the first accommodating cavity (111), a profiling groove is formed in one side, far away from the first pressure head (113), of the first positioning block (114), the profiling groove is matched with the shape of the flange (1011), and the profiling groove of the first positioning block (114) is driven by the first pressure head (113) to be in pressure connection with the flange (1011).

3. The vehicle air pressure increasing valve testing mechanism according to claim 1, wherein the pressure maintaining leakage testing device (1) further comprises a first gasket (13), and the first gasket (13) is mounted on an end face of the first base (12) close to the first compression joint assembly (11).

4. The vehicle air pressure increasing valve testing mechanism according to claim 1, wherein the pressure maintaining leakage testing device (1) further comprises a detection assembly (14), the detection assembly (14) comprises a detection support (141) and a photoelectric sensor (142), one end of the detection support (141) is fixed on the first base (12), the photoelectric sensor (142) is fixed at the other end of the detection support, and the photoelectric sensor (142) is used for detecting the pressing distance of the first pressing assembly (11).

5. The air charge valve testing mechanism for a vehicle according to any one of claims 1 to 4, further comprising a spool leakage testing device (2), said spool leakage testing device (2) comprising:

a second crimp assembly (21) provided with a third accommodation chamber (211);

the base assembly (22) is provided with a fourth accommodating cavity (221) and a second air channel (222), one end of the second air channel (222) is communicated with the second accommodating cavity (121), and the other end of the second air channel is connected with a second air pump; a second detection channel (223) is arranged on the side wall of the fourth accommodating cavity (221), one end of the second detection channel (223) is communicated with the exhaust port (104), and the other end of the second detection channel is connected with a leakage tester;

the second compression joint assembly (21) and the base assembly (22) are in compression joint with two sides of the flange (1011), a first end of the vehicle air booster valve (10) is located in the fourth accommodating cavity (221), and a second end of the vehicle air booster valve (10) is located in the third accommodating cavity (211).

6. The vehicle air pressure increasing valve testing mechanism according to claim 5, wherein the valve core leakage testing device (2) further comprises a driving unit (23), the driving unit (23) is arranged in the second crimping assembly (21), and the driving unit (23) is used for driving the valve core (107) to seal the circulation hole (105);

the second detection channel (223) is connected to the third air pump through a pipeline, and an air pressure gauge is arranged on the pipeline.

7. The vehicle air charge valve testing mechanism of claim 5, wherein the spool leak testing device (2) further comprises a piston (24), the base assembly (22) comprising a second base (224) and a sealing block (225), the sealing block (225) being provided with a first pilot hole (2251), the second base (224) being provided with a second pilot hole (2241);

the piston (24) is slidably connected to the first guide hole (2251), a first sealing ring (25) is arranged on the side wall of the piston (24) and the side wall of the first guide hole (2251), and the bottom of the piston (24) extends into the second guide hole (2241);

the fourth accommodating cavity (221) is arranged on the sealing block (225), and a second sealing ring (26) is arranged between the first end of the vehicle air booster valve (10) and the side wall of the fourth accommodating cavity (221);

the second base (224) is provided with third gas circuit (2242), third gas circuit (2242) one end communicate in the bottom of piston (24), the other end is connected in the fourth air pump, the fourth air pump can drive piston (24) butt in second sealing washer (26).

8. The vehicle air pressure increasing valve testing mechanism according to claim 7, wherein the sealing block (225) is provided with a third detection channel (2252), and a detection port of the third detection channel (2252) communicating with the first guide hole (2251) is located between the first sealing ring (25) and the second sealing ring (26);

one end of the third detection channel (2252) away from the detection port is communicated with the leakage tester.

9. The test mechanism for an air pressure boosting valve for a vehicle according to claim 6, wherein said two spool leakage test devices (2) are provided, wherein a second detection passage (223) of one of said spool leakage test devices (2) is connected to said leakage tester, and a second detection passage (223) of the other of said spool leakage test devices (2) is connected to a third air pump through a pipe.

10. The vehicle air pressure boost valve testing mechanism according to claim 1, further comprising a bracket (3), wherein the bracket (3) comprises a top plate (4), a cylinder (5) is mounted on the top plate (4), a gland (6) is mounted on an output end of the cylinder (5), and the gland (6) is connected to the first crimping assembly (11).