Air pressure valve testing machine

Abstract

An air pressure valve testing machine disclosed by the present invention comprises a test valve body and an air pressure leakage alarm mechanism, the left side of the test valve body is communicated with an air path connection joint, an air sealing ring is arranged in the joint, a test pipeline is inserted into the joint and is matched with the sealing ring, and a fastening lantern ring on the pipeline is in contact with the joint. An adjusting slender rod, a pressure-bearing plate, a reset metal spring and the like are arranged in an inner cavity of the valve body in the fastening lantern ring, a transmission toothed plate, a transmission cylindrical gear and the like are driven to be linked by operating a handle, matching of a quick-locking bayonet lock and a first sealing groove is achieved, quick sealing connection of a pipeline and the valve body is completed, and an air pressure leakage alarm mechanism comprises an alarm display screen, a dustproof filter screen and the like. Through transmission of components such as the L-shaped transmission rod, the pneumatic adjusting rod and the driving gear disc, rapid dismounting and fixing of the filter screen are achieved, the leaked gas concentration and the oxygen content can be monitored, an alarm is triggered when the leaked gas concentration and the oxygen content exceed standards, and the testing efficiency, the safety and the maintenance convenience are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air pressure testing, in particular to an air pressure valve testing machine. Background Art

[0002] In industrial production, pneumatic valves are key components of fluid control systems. Their sealing performance and pressure-bearing capacity are directly related to production safety and operational efficiency. Therefore, accurate and efficient performance testing of pneumatic valves is crucial, and pneumatic valve testing machines came into being.

[0003] Conventional pneumatic valve testing machines have numerous limitations in practical applications. Bolts or flanges are commonly used to connect the pipe to the valve body. These connections require multiple tools, such as wrenches, making the process cumbersome and time-consuming. Furthermore, uneven force during the connection process can easily wear seals, affecting the airtightness of the test. Improper installation can even lead to gas leaks during testing, compromising the accuracy of test results and posing safety risks.

[0004] When it comes to leak detection, traditional equipment has a relatively simple detection mechanism. Most devices can only respond to obvious gas leaks, have low sensitivity for identifying trace leaks, and have incomplete alarm functions. Most devices only provide simple indicator lights or buzzer alarms, failing to display key information such as the specific concentration and location of the leaked gas in real time. This makes it difficult for operators to promptly identify the fault point and risk level. Furthermore, monitoring of safety indicators such as oxygen concentration in the test environment is often lacking. When harmful gases accumulate or oxygen levels are too low within the test space, early warnings are not issued, posing a threat to the operator's personal safety. Furthermore, traditional testing machines are difficult to maintain. For example, the dust filter inside the equipment, which filters impurities from the gas, requires regular cleaning or replacement after long-term use. However, in existing structures, disassembly and installation of the filter often requires disassembly of multiple fixed components, which is complex, time-consuming, and labor-intensive. This not only affects the normal use efficiency of the equipment, but also can cause the filter to shift in position due to frequent disassembly, affecting the filtration effect and causing wear and tear on the precision components within the testing machine.

[0005] Furthermore, some traditional equipment suffers from poor human-machine interaction, lacks intuitive display of test data, and requires operators to navigate complex workflows to obtain key information, reducing testing efficiency. These issues make it difficult for traditional pneumatic valve testing machines to meet the high demands of modern industry for test accuracy, ease of operation, and safety protection, hindering the further development of pneumatic valve testing technology. Summary of the Invention

[0006] The purpose of the present invention is to provide an air pressure valve testing machine to solve the problems of existing air pressure valve testing machines, such as cumbersome operation, low efficiency and easily affected air tightness when connected to the valve to be tested, low leakage detection sensitivity, single alarm mechanism, and inconvenient maintenance of filtering and protective components.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an air pressure valve testing machine, comprising a test valve body and an air pressure leakage alarm mechanism:

[0008] The test valve body is provided with an air pressure leakage alarm mechanism, the left side of the test valve body is fixedly connected with an air circuit connection joint, the top and bottom of the left end of the air circuit connection joint are provided with No. 1 sealing grooves, and quick-locking pins are movably installed in the two No. 1 sealing grooves, an air sealing ring is fixedly connected in the air circuit connection joint, a test pipe is movably inserted in the air circuit connection joint, and the test pipe is adapted to the air sealing ring, a fastening ring is fixedly provided on the test pipe, and the fastening ring is in contact with the left end of the air circuit connection joint, and two valves are provided on the fastening ring The air path connecting joint is located between the two valve body cavities, one end of the adjusting rod is fixedly connected to the right side of the top inner wall of the valve body cavity, and the other end of the adjusting rod is fixedly connected to the bottom inner wall of the valve body cavity, and the sliding sleeve on the adjusting rod is provided with a pressure-bearing solid plate, one end of the two pressure-bearing solid plates extends to the outside of the fastening ring and is fixedly connected to the two quick-locking pins respectively, and a reset metal spring is fixedly connected between the side of the pressure-bearing solid plate away from the test pipe and the inner wall of the valve body cavity on one side, and the reset metal spring is movably sleeved on the adjusting rod.

[0009] Preferably, the air pressure leakage alarm mechanism includes an alarm display screen and heat dissipation ventilation holes installed on one side of the test valve body, a dust filter is provided in the test valve body, an alarm mechanism fixing seat is fixedly installed on the inner wall of one side of the test valve body, a mechanism fixing groove is provided on one side of the alarm mechanism fixing seat, a mechanism fixing block is fixedly installed on one side of the dust filter, one side of the mechanism fixing block extends into the mechanism fixing groove, a component placement cavity is provided on the alarm mechanism fixing seat, an L-shaped transmission rod is movably installed in the component placement cavity, a pneumatic adjustment rod is fixedly installed on one end of the L-shaped transmission rod, a pneumatic moving hole is provided on one inner wall of one side of the component placement cavity, one end of the L-shaped transmission rod passes through the pneumatic moving hole and is fixedly installed with a pneumatic pressure plate, a drive gear disk is rotatably installed on the inner wall of one side of the component placement cavity, a transmission rack is fixedly installed on one side of the pneumatic adjustment rod, and the transmission rack is meshed with the drive gear disk.

[0010] Preferably, a No. 2 sealing groove is opened on one side of the pressure-bearing solid plate and is located in the inner cavity of the valve body. A buffer round block is slidably installed in the No. 2 sealing groove. The inner walls of the two valve body cavities that are away from each other are fixedly connected with guide rails, and pneumatic movable blocks are slidably installed in the two guide rails.

[0011] Preferably, the left sides of the two pneumatic movable blocks are fixedly connected to a transmission tooth plate, and the ends of the two transmission tooth plates that are away from each other extend to the top and bottom of the fastening ring respectively, and are fixedly connected to an operating handle.

[0012] Preferably, one end of a linkage connecting rod is rotatably connected to the inner wall of one side of the inner cavity of the valve body, the other end of the linkage connecting rod is fixedly sleeved with a pneumatic push rod, and the buffer round block is fixedly connected to the end of the pneumatic push rod away from the linkage connecting rod.

[0013] Preferably, a transmission cylindrical gear is fixedly sleeved on the linkage connecting rod, and the transmission cylindrical gear is meshed with the transmission tooth plate.

[0014] Preferably, a swing push rod is rotatably installed on the inner wall of one side of the component placement cavity of the air pressure leakage alarm mechanism, one side of the swing push rod is movably installed on one side of the driving gear plate, a linkage connecting rod is rotatably installed on one side of the swing push rod, and a locking clamping rod is rotatably installed on one end of the linkage connecting rod, a clamping rod positioning hole is provided on the inner wall of one side of the component placement cavity, a clamping slot is provided on one side of the mechanism fixing block, one end of the locking clamping rod passes through the clamping rod positioning hole and is adapted to the clamping slot, a cylindrical hole is provided on one side of the swing push rod, a circular column is fixedly installed on one side of the driving gear plate, and one end of the circular column passes through the cylindrical hole.

[0015] Preferably, a pneumatic movable hole is provided on the inner wall of one side of the component placement cavity of the air pressure leakage alarm mechanism, and a pneumatically driven movable rod is movably installed in the pneumatically driven movable hole. Both ends of the pneumatically driven movable rod extend outside the pneumatically driven hole, and a first spring is sleeved on the pneumatically driven movable rod. One end of the first spring is fixedly installed on one side of the pneumatically driven movable rod, and the other end of the first spring is fixedly installed on the inner wall of one side of the pneumatically driven hole. A positioning groove is provided on one side of the pneumatic adjustment rod, and one end of the pneumatically driven movable rod is adapted to the positioning groove.

[0016] Preferably, one end of a second spring is fixedly mounted on one side of the L-shaped transmission rod of the air pressure leakage alarm mechanism, and the other end of the second spring is fixedly mounted on one side inner wall of the mechanism fixing groove.

[0017] Preferably, a mechanism mounting seat is fixedly installed on the inner wall of one side of the test valve body, a slide groove is opened on one side of the mechanism mounting seat, one side of the dust filter of the air pressure leakage alarm mechanism is slidably installed in the slide groove, and a mechanism sealing ring is provided on the inner wall of one side of the test valve body, and the mechanism sealing ring is in close contact with the dust filter.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] In the prior art, the connection between the pipeline and the valve body often requires the use of multiple tools, and the operation steps are cumbersome, which not only takes a lot of time, but may also lead to poor sealing performance due to improper installation. However, in the present invention, when it is necessary to connect the test pipeline and the air connection joint, it is only necessary to pull the operating handle to drive the transmission gear plate to move, and the transmission gear plate is engaged with the transmission cylindrical gear, thereby driving the linkage connecting rod and the pneumatic push rod to rotate, so that the buffer round block makes an arc movement in the No. 2 sealing groove, pushing the pressure-bearing plate to move, so that the quick-locking pin is disengaged from the No. 1 sealing groove. At this time, the test pipeline can be easily inserted. After the fastening ring on the test pipeline contacts the left end of the air connection joint, the operating handle is released. Under the elastic force of the reset metal spring, the pressure-bearing plate is reset, driving the quick-locking pin to be reinserted into the No. 1 sealing groove to complete the quick locking. At the same time, the airtight sealing ring can effectively ensure the airtightness of the connection, avoid air leakage during the air pressure test, simplify the connection process, improve the efficiency of the test preparation work, and ensure the accuracy of the test.

[0020] The pneumatic valve testing machine in the existing technology has obvious shortcomings in leak detection. Not only is the function single and can only perform simple leak judgment, but the alarm is often delayed and cannot remind the operator in time, posing a major safety hazard. In the present invention, when gas leakage occurs in the test valve body or connection, the leaked gas pushes the pneumatic pressure plate, driving the L-shaped transmission rod to move, and then the pneumatic adjustment rod and the transmission rack move accordingly. The transmission rack engages with the drive gear plate, and the drive gear plate rotates to trigger a subsequent series of transmissions. At the same time, the alarm display screen can display the leakage gas content status of each gas detection unit and the oxygen concentration value in the switch room in real time. When the leakage gas concentration exceeds the set value or the oxygen concentration is lower than the set value, the equipment will immediately output a contact alarm signal and issue an on-site voice alarm, effectively avoiding the problem of alarm lag. In addition, the system host also has a human infrared detection function. When someone enters the relevant area, a voice alarm prompt can be issued, which fully guarantees the safety of personnel during the test and greatly improves the intelligent monitoring level of the equipment.

[0021] The filter components in the prior art are very difficult to clean and disassemble, and often require the removal of multiple screws and components, which is time-consuming and seriously affects the normal operation time of the equipment. When the dust filter needs to be cleaned or replaced, the present invention uses a structure composed of a swing push rod, a linkage connecting rod, a locking clamp and a pneumatically driven movable rod. No complicated operations are required, and only the pneumatically driven movable rod needs to be operated to achieve quick assembly and disassembly of the dust filter. Moreover, the slide groove of the mechanism mounting seat provides a guide for the installation of the dust filter to ensure the accurate installation position. The mechanism sealing ring ensures the sealed contact between the dust filter and the inner wall of the test valve body to avoid dust from entering through the gap, which not only ensures the filtering effect and prevents dust from entering the test valve body to affect the normal operation of the equipment, but also greatly simplifies the maintenance process, reduces the time of equipment downtime due to maintenance, and improves the overall operation efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic structural diagram of the fastening collar A portion of the present invention;

[0024] Figure 3 This is a schematic structural diagram of the fastening collar B portion of the present invention;

[0025] Figure 4 This is a schematic diagram of the test valve structure of the present invention;

[0026] Figure 5 This is a schematic structural diagram of the test alarm mechanism fixing seat of the present invention;

[0027] Figure 6 This is a structural diagram of the fixing seat C of the alarm mechanism of the present invention;

[0028] Figure 7 It is a partial structural diagram of the fixing seat C1 of the alarm mechanism of the present invention.

[0029] In the figure: 1. Test valve body; 2. Air connection joint; 3. No. 1 sealing groove; 4. Quick lock pin; 5. Air sealing ring; 6. Test pipe; 7. Fastening ring; 8. Valve body cavity; 9. Adjusting rod; 10. Pressure bearing plate; 11. Reset metal spring; 12. No. 2 sealing groove; 13. Buffer block; 14. Guide rail; 15. Pneumatic movable block; 16. Transmission gear plate; 17. Operating handle; 18. Linkage connecting rod; 19. Pneumatic push rod; 20. Transmission cylindrical gear; 21. Air pressure leakage alarm mechanism; 211. Alarm display; 212. Heat dissipation vents; 21 3. Mechanism mounting seat; 214. Dust filter; 215. Mechanism sealing ring; 216. Alarm mechanism fixing seat; 217. Mechanism fixing groove; 218. Mechanism fixing block; 219. Pneumatic pressure plate; 2110. L-shaped transmission rod; 2120. Component placement cavity; 2112. Pneumatic moving hole; 2113. Pneumatic adjustment rod; 2114. Transmission rack; 2115. Drive gear plate; 2116. Swing push rod; 2117. Linkage connecting rod; 2118. Clamp rod positioning hole; 2119. Locking clamp rod; 2120. Pneumatic movable hole; 2121. Pneumatic drive movable rod. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0031] See also Figure 1-Figure 7As shown, the present invention provides a technical solution: an air pressure valve testing machine, comprising a test valve body 1 and an air pressure leakage alarm mechanism 21. The test valve body 1 is provided with an air pressure leakage alarm mechanism 21. The left side of the test valve body 1 is fixedly connected to an air path connection joint 2. The top and bottom of the left end of the air path connection joint 2 are both provided with a No. 1 sealing groove 3. The two No. 1 sealing grooves 3 are both movably installed with a quick-locking pin 4. An air sealing ring 5 is fixedly connected to the air path connection joint 2. A test pipe 6 is movably inserted into the air path connection joint 2, and the test pipe 6 is adapted to the air sealing ring 5. A fastening ring 7 is fixedly provided on the test pipe 6, and the fastening ring 7 is connected to the air path connection joint 2. The left end of the valve body is in contact with each other, two valve body cavities 8 are provided on the fastening collar 7, and the air path connecting joint 2 is located between the two valve body cavities 8. The right side of the top inner wall of the valve body cavity 8 is fixedly connected with one end of an adjusting thin rod 9, and the other end of the adjusting thin rod 9 is fixedly connected to the bottom inner wall of the valve body cavity 8. A pressure-bearing solid plate 10 is slidingly sleeved on the adjusting thin rod 9. One end of the two pressure-bearing solid plates 10 extends to the outside of the fastening collar 7 and is fixedly connected to the two quick-locking pins 4 respectively. A reset metal spring 11 is fixedly connected between the side of the pressure-bearing solid plate 10 away from the test pipe 6 and the inner wall of one side of the valve body cavity 8, and the reset metal spring 11 is movably sleeved on the adjusting thin rod 9;

[0032] The air pressure leakage alarm mechanism 21 includes an alarm display screen 211 and a heat dissipation vent 212 installed on one side of the test valve body 1. A dust filter 214 is provided in the test valve body 1. An alarm mechanism fixing seat 216 is fixedly installed on the inner wall of one side of the test valve body 1. A mechanism fixing groove 217 is provided on one side of the alarm mechanism fixing seat 216. A mechanism fixing block 218 is fixedly installed on one side of the dust filter 214. One side of the mechanism fixing block 218 extends into the mechanism fixing groove 217. A component placement cavity 2120 is provided on the alarm mechanism fixing seat 216. The component placement cavity 2120 is provided in the component placement cavity 217. An L-shaped transmission rod 2110 is movably installed in 120, and a pneumatic adjustment rod 2113 is fixedly installed on one end of the L-shaped transmission rod 2110. A pneumatic movable hole 2112 is opened on the inner wall of one side of the component placement cavity 2120. One end of the L-shaped transmission rod 2110 passes through the pneumatic movable hole 2112 and is fixedly installed with a pneumatic pressure plate 219. A driving gear plate 2115 is rotatably installed on the inner wall of one side of the component placement cavity 2120, and a transmission rack 2114 is fixedly installed on one side of the pneumatic adjustment rod 2113, and the transmission rack 2114 is engaged with the driving gear plate 2115.

[0033] In the present invention, a second sealing groove 12 located in the inner cavity 8 of the valve body is opened on one side of the pressure-bearing solid plate 10 , and a buffer round block 13 is slidably installed in the second sealing groove 12 .

[0034] In the present invention, the inner walls of the inner cavities 8 of the two valve bodies that are away from each other are fixedly connected with guide rails 14 , and pneumatic movable blocks 15 are slidably installed in the two guide rails 14 .

[0035] In the present invention, the left sides of the two pneumatic movable blocks 15 are fixedly connected with a transmission tooth plate 16 , and the ends of the two transmission tooth plates 16 that are away from each other extend to the top and bottom of the fastening ring 7 respectively, and are fixedly connected with an operating handle 17 .

[0036] In the present invention, one end of a linkage connecting rod 18 is rotatably connected to the inner wall of one side of the inner cavity 8 of the valve body, and the other end of the linkage connecting rod 18 is fixedly sleeved with a pneumatic push rod 19, and the buffer round block 13 is fixedly connected to the end of the pneumatic push rod 19 away from the linkage connecting rod 18.

[0037] In the present invention, a transmission cylindrical gear 20 is fixedly sleeved on the linkage connecting rod 18 , and the transmission cylindrical gear 20 is meshed with the transmission gear plate 16 .

[0038] In the present invention, a swing push rod 2116 is rotatably installed on the inner wall of one side of the component placement cavity 2120, and one side of the swing push rod 2116 is movably installed on one side of the driving gear plate 2115. A linkage link 2117 is rotatably installed on one side of the swing push rod 2116, and a locking clamping rod 2119 is rotatably installed on one end of the linkage link 2117. A clamping rod positioning hole 2118 is provided on the inner wall of one side of the component placement cavity 2120, and a clamping slot is provided on one side of the mechanism fixing block 218. One end of the locking clamping rod 2119 passes through the clamping rod positioning hole 2118 and is adapted to the clamping slot. A cylindrical hole is provided on one side of the swing push rod 2116, and a circular column is fixedly installed on one side of the driving gear plate 2115, and one end of the circular column passes through the cylindrical hole.

[0039] In the present invention, a pneumatic movable hole 2120 is opened on the inner wall of one side of the component placement cavity 2120, and a pneumatically driven movable rod 2121 is movably installed in the pneumatically driven movable hole 2120. Both ends of the pneumatically driven movable rod 2121 extend outside the pneumatically driven movable hole 2120. A first spring is sleeved on the pneumatically driven movable rod 2121, and one end of the first spring is fixedly installed on one side of the pneumatically driven movable rod 2121, and the other end of the first spring is fixedly installed on the inner wall of one side of the pneumatically driven movable hole 2120. A positioning groove is opened on one side of the pneumatic adjustment rod 2113, and one end of the pneumatically driven movable rod 2121 is adapted to the positioning groove.

[0040] In the present invention, one end of the second spring is fixedly mounted on one side of the L-shaped transmission rod 2110 , and the other end of the second spring is fixedly mounted on one inner wall of the mechanism fixing groove 217 .

[0041] In the present invention, a mechanism mounting seat 213 is fixedly installed on the inner wall of one side of the test valve body 1, a sliding groove is opened on one side of the mechanism mounting seat 213, and one side of the dust filter 214 is slidably installed in the sliding groove. A mechanism sealing ring 215 is provided on the inner wall of one side of the test valve body 1, and the mechanism sealing ring 215 is in contact with the dust filter 214.

[0042] When the valve of the present invention is connected, the operating handle 17 is pulled to make the operating handle 17 away from the fastening ring 7, thereby driving the transmission tooth plate 16 fixedly connected to the operating handle 17 to move. Since the transmission tooth plate 16 is engaged with the transmission cylindrical gear 20, the transmission cylindrical gear 20 can be driven to rotate. Due to the connection relationship between the transmission cylindrical gear 20, the linkage connecting rod 18 and the pneumatic push rod 19, the linkage connecting rod 18 and the pneumatic push rod 19 can be driven to rotate. Since the buffer block 13 is fixedly connected to the pneumatic push rod 19, the buffer block 13 can be driven to make an arc movement. Since the pressure-bearing solid plate 10 is slidably sleeved on the adjusting thin rod 9, the pressure-bearing solid plate 10 can only move vertically along the adjusting thin rod 9. Due to the pressure-bearing solid plate 10, the second sealing groove 12 and the buffer block 13 The quick-locking pin 4 is pressed against the pressure plate 10 and the pressure plate 10 is moved vertically. When the operating handle 17 cannot be moved, the test pipe 6 is inserted into the gas connection joint 2. When the fastening ring 7 fixed on the test pipe 6 contacts the left end of the gas connection joint 2, the operating handle 17 is released. Due to the elastic force of the reset metal spring 11, the pressure plate 10 is pushed to move vertically in the direction of the test pipe 6, and then the quick-locking pin 4 is driven to move, so that the quick-locking pin 4 is inserted into the No. 1 sealing groove 3, thereby completing the quick connection between the test valve body 1 and the test pipe 6.

[0043] The air pressure leakage alarm mechanism 21 of the present invention displays the leakage gas content status of each gas transmission detection unit in turn. When the leakage gas concentration exceeds the set value, it displays the content exceeding the standard and displays the oxygen concentration value of each gas detection unit in the switch room in turn. When the oxygen concentration is lower than the set value, it outputs a contact alarm signal and performs an on-site voice alarm. The system host has the functions of human infrared detection and voice alarm prompt, which improves the way of human-computer information exchange in previous products, thereby ensuring the safety of personnel entering. When the dust filter 214 needs to be installed or cleaned, the mobile mechanism fixed block 218 squeezes the air pressure plate 219. The air pressure plate 219 is squeezed to drive the L-shaped transmission rod 2110 to move, and the L-shaped transmission rod 2110 moves with The pneumatic adjustment rod 2113 moves, and the movement of the pneumatic adjustment rod 2113 drives the transmission rack 2114 to move. The movement of the transmission rack 2114 drives the driving gear plate 2115 to rotate. The rotation of the driving gear plate 2115 drives the swing push rod 2116 to swing under the action of the cylindrical hole and the circular column. The swing push rod 2116 swings and drives the linkage link 2117 to move. The linkage link 2117 moves and drives the locking rod 2119 to move and extend into the slot. At this time, one end of the pneumatically driven movable rod 2121 extends into the positioning slot, which is convenient for fixing the dust filter 214. The dust filter 214 can be removed by moving the pneumatically driven movable rod 2121 until one end of the pneumatically driven movable rod 2121 is out of the positioning slot, which is convenient for cleaning and use.

[0044] The effects achieved by the entire organization are:

[0045] When the pneumatic valve tester is in operation, the sealing connection between the test pipe and the test valve body must be completed first. The specific operation is to pull the operating handle 17 to move the operating handle 17 in the direction away from the fastening collar 7. At this time, the transmission gear plate 16 fixedly connected to the operating handle 17 moves synchronously with it. Because the transmission gear plate 16 is meshed with the transmission cylindrical gear 20 fixedly sleeved on the linkage connecting rod 18, the movement of the transmission gear plate 16 will drive the transmission cylindrical gear 20 to rotate, and one end of the linkage connecting rod 18 is rotatably connected to the inner wall of one side of the inner cavity 8 of the valve body, and the other end is fixedly sleeved with a pneumatic push rod 19. Therefore, the rotation of the transmission cylindrical gear 20 will drive the linkage connecting rod 18 and the pneumatic push rod 19 to rotate together, thereby causing the buffer block 13 fixedly connected to the end of the pneumatic push rod 19 away from the linkage connecting rod 18 to make an arc motion in the No. 2 sealing groove 12. Since the buffer block 13 is in contact with the pressure-bearing plate 10, and The pressure-bearing solid plate 10 is slidably sleeved on the adjusting thin rod 9, which will push the pressure-bearing solid plate 10 to move vertically along the adjusting thin rod 9 away from the test pipe 6, and at the same time compress the return metal spring 11 sleeved on the adjusting thin rod 9. Because the pressure-bearing solid plate 10 is fixedly connected to the quick-locking pin 4, the quick-locking pin 4 will move with the pressure-bearing solid plate 10 and disengage from the No. 1 sealing groove 3. At this time, the test pipe 6 is inserted into the gas line connection joint 2 until the fastening ring 7 fixedly sleeved on the test pipe 6 is in close contact with the left end of the gas line connection joint 2, and the test pipe 6 is adapted to the air sealing ring 5 in the gas line connection joint 2 to ensure preliminary sealing. Then, the operating handle 17 is released, and the return metal spring 11 pushes the pressure-bearing solid plate 10 to return along the adjusting thin rod 9 to the direction close to the test pipe 6 under the action of elastic force, driving the quick-locking pin 4 to be reinserted into the No. 1 sealing groove 3, completing the stable connection between the test pipe 6 and the test valve body 1;After the connection is completed, the gas enters the test valve body 1 through the test pipe 6. At this time, the air pressure leakage alarm mechanism 21 starts working, and the gas pressure change in the test valve body 1 will be monitored. If gas leakage occurs in the test valve body 1 or the connection, the leaked gas will push the air pressure plate 219, so that the air pressure plate 219 drives the L-shaped transmission rod 2110 fixedly connected to it to move in the component placement cavity 2120, and at the same time compresses the second spring on one side of the L-shaped transmission rod 2110. The movement of the L-shaped transmission rod 2110 will drive the pneumatic adjustment rod 2113 fixedly installed at one end of it to move synchronously. The transmission rack 2114 fixedly installed on one side of 2113 moves accordingly. Since the transmission rack 2114 is engaged with the driving gear plate 2115 rotatably installed in the component placement cavity 2120, the movement of the transmission rack 2114 drives the driving gear plate 2115 to rotate. The circular column fixedly installed on one side of the driving gear plate 2115 passes through the cylindrical hole on the swing push rod 2116. Therefore, the rotation of the driving gear plate 2115 drives the swing push rod 2116 to swing on the inner wall of one side of the component placement cavity 2120. The swing of the swing push rod 2116 pulls the linkage connecting rod rotatably connected to it. 2117, the linkage connecting rod 2117 drives the locking card rod 2119 installed in rotation at the other end to move, so that one end of the locking card rod 2119 passes through the card rod positioning hole 2118 and adapts to the slot on the mechanism fixing block 218. At the same time, the air pressure drives the movable rod 2121 through the pneumatic movable hole 2122 under the action of the first spring and is stuck in the positioning slot on the pneumatic adjustment rod 2113, thereby fixing the dust filter 214. The alarm display screen 211 will display the leakage gas content status of each gas detection unit in real time. When the leakage gas concentration exceeds the set value, it will be displayed as excessive and The output contact alarm signal is accompanied by an on-site voice alarm. The heat dissipation vents 212 dissipate heat from the internal components of the air pressure leak alarm mechanism 21. The dust filter 214 prevents dust from entering the test valve body 1. The grooves on the mechanism mounting base 213 guide the dust filter 214. The mechanism sealing ring 215 ensures a sealed contact between the dust filter 214 and the inner wall of the test valve body 1. The alarm mechanism fixing base 216 positions the mechanism fixing block 218 via the mechanism fixing groove 217, ensuring stable operation of the air pressure leak alarm mechanism 21, thereby enabling testing and leak monitoring of the air pressure valve.

[0046] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. Air pressure valve testing machine, characterized by: It includes a test valve body (1) and an air pressure leakage alarm mechanism (21): The test valve body (1) is provided with an air pressure leakage alarm mechanism (21), the left side of the test valve body (1) is fixedly connected with an air path connection joint (2), the top and bottom of the left end of the air path connection joint (2) are provided with a No. 1 sealing groove (3), and the two No. 1 sealing grooves (3) are movably installed with a quick lock pin (4), the air path connection joint (2) is fixedly connected with an air sealing ring (5), the air path connection joint (2) is movably plugged with a test pipe (6), and the test pipe (6) is adapted to the air sealing ring (5), and a fastening ring (7) is fixedly provided on the test pipe (6), and the fastening ring (7) is in contact with the left end of the air path connection joint (2), and two valves are provided on the fastening ring (7). The inner cavity (8) of the valve body is provided with an air path connecting joint (2), and the air path connecting joint (2) is located between the inner cavities (8) of the two valve bodies. One end of the adjusting thin rod (9) is fixedly connected to the right side of the top inner wall of the valve body inner cavity (8), and the other end of the adjusting thin rod (9) is fixedly connected to the bottom inner wall of the valve body inner cavity (8). A pressure-bearing solid plate (10) is provided on the sliding sleeve of the adjusting thin rod (9). One end of the two pressure-bearing solid plates (10) extends to the outside of the fastening ring (7) and is fixedly connected to the two quick-locking pins (4) respectively. A reset metal spring (11) is fixedly connected between the side of the pressure-bearing solid plate (10) away from the test pipe (6) and the inner wall of one side of the inner cavity (8) of the valve body, and the reset metal spring (11) is movably sleeved on the adjusting thin rod (9).

2. The air pressure valve testing machine according to claim 1, characterized in that: The air pressure leakage alarm mechanism (21) includes an alarm display screen (211) and a heat dissipation vent (212) installed on one side of the test valve body (1). A dust filter (214) is provided in the test valve body (1). An alarm mechanism fixing seat (216) is fixedly installed on the inner wall of one side of the test valve body (1). A mechanism fixing groove (217) is provided on one side of the alarm mechanism fixing seat (216). A mechanism fixing block (218) is fixedly installed on one side of the dust filter (214). One side of the mechanism fixing block (218) extends into the mechanism fixing groove (217). A component placement cavity (2120) is provided on the alarm mechanism fixing seat (216). An L-shaped transmission rod (2110) is movably installed in the placement cavity (2120), and a pneumatic adjustment rod (2113) is fixedly installed on one end of the L-shaped transmission rod (2110). A pneumatic movement hole (2112) is opened on the inner wall of one side of the component placement cavity (2120), and one end of the L-shaped transmission rod (2110) passes through the pneumatic movement hole (2112) and is fixedly installed with a pneumatic pressure plate (219). A driving gear plate (2115) is rotatably installed on the inner wall of one side of the component placement cavity (2120), and a transmission rack (2114) is fixedly installed on one side of the pneumatic adjustment rod (2113), and the transmission rack (2114) is meshed with the driving gear plate (2115).

3. The air pressure valve testing machine according to claim 1, characterized in that: A second sealing groove (12) is provided on one side of the pressure-bearing solid plate (10) and is located in the inner cavity (8) of the valve body. A buffer round block (13) is slidably installed in the second sealing groove (12). The inner walls of the two valve body inner cavities (8) on the sides away from each other are fixedly connected to guide rails (14), and pneumatic movable blocks (15) are slidably installed in the two guide rails (14).

4. The air pressure valve testing machine according to claim 3, characterized in that: The left sides of the two pneumatic movable blocks (15) are both fixedly connected to a transmission tooth plate (16), and the ends of the two transmission tooth plates (16) that are away from each other extend to the top and bottom of the fastening ring (7) respectively, and are both fixedly connected to an operating handle (17).

5. The air pressure valve testing machine according to claim 3, characterized in that: One end of a linkage connecting rod (18) is rotatably connected to an inner wall of one side of the inner cavity (8) of the valve body, and a pneumatic push rod (19) is fixedly sleeved on the other end of the linkage connecting rod (18), and a buffer block (13) is fixedly connected to an end of the pneumatic push rod (19) away from the linkage connecting rod (18).

6. The air pressure valve testing machine according to claim 5, characterized in that: A transmission cylindrical gear (20) is fixedly sleeved on the linkage connecting rod (18), and the transmission cylindrical gear (20) is meshed with the transmission toothed plate (16).

7. The air pressure valve testing machine according to claim 2, characterized in that: A swing push rod (2116) is rotatably mounted on the inner wall of one side of the component placement cavity (2120) of the air pressure leakage alarm mechanism (21), one side of the swing push rod (2116) is movably mounted on one side of the driving gear plate (2115), a linkage connecting rod (2117) is rotatably mounted on one side of the swing push rod (2116), one end of the linkage connecting rod (2117) is rotatably mounted on a locking clamping rod (2119), a clamping rod positioning hole (2118) is provided on the inner wall of one side of the component placement cavity (2120), a clamping groove is provided on one side of the mechanism fixing block (218), one end of the locking clamping rod (2119) passes through the clamping rod positioning hole (2118) and is adapted to the clamping groove, a cylindrical hole is provided on one side of the swing push rod (2116), a circular column is fixedly mounted on one side of the driving gear plate (2115), one end of the circular column passes through the cylindrical hole.

8. The air pressure valve testing machine according to claim 2, characterized in that: A pneumatic movable hole (2122) is provided on the inner wall of one side of the component placement cavity (2120) of the air pressure leakage alarm mechanism (21), and a pneumatically driven movable rod (2121) is movably installed in the pneumatically driven movable hole (2122). Both ends of the pneumatically driven movable rod (2121) extend outside the pneumatically driven movable hole (2122). A first spring is sleeved on the pneumatically driven movable rod (2121), one end of the first spring is fixedly installed on one side of the pneumatically driven movable rod (2121), and the other end of the first spring is fixedly installed on the inner wall of one side of the pneumatically driven movable hole (2122). A positioning groove is provided on one side of the pneumatic adjustment rod (2113), and one end of the pneumatically driven movable rod (2121) is adapted to the positioning groove.

9. The air pressure valve testing machine according to claim 2, characterized in that: One end of a second spring is fixedly mounted on one side of the L-shaped transmission rod (2110) of the air pressure leakage alarm mechanism (21), and the other end of the second spring is fixedly mounted on one inner wall of the mechanism fixing groove (217).

10. The air pressure valve testing machine according to claim 1, characterized in that: A mechanism mounting seat (213) is fixedly mounted on the inner wall of one side of the test valve body (1), a slide groove is provided on one side of the mechanism mounting seat (213), one side of the dustproof filter (214) of the air pressure leakage alarm mechanism (21) is slidably mounted in the slide groove, and a mechanism sealing ring (215) is provided on the inner wall of one side of the test valve body (1), and the mechanism sealing ring (215) is in close contact with the dustproof filter (214).

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