A regulating valve pressure measuring device for an air conditioner dehumidifier

By designing automated pressure testing equipment, combined with high-temperature, low-temperature, and normal-temperature chambers and dual pressure sensors, the problem of low pressure testing efficiency of the regulating valve of the air conditioning dehumidifier was solved, realizing efficient and accurate pressure testing and cleaning, and meeting the needs of mass production.

CN118032329BActive Publication Date: 2026-02-10CHONGQING QIQIAO TECH CO LTD
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Patent Information

Application Number
CN202410076048.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-01-18
Publication Date
2026-02-10
Estimated Expiration
2044-01-18

AI Technical Summary

Technical Problem

Existing pressure testing equipment for air conditioner dehumidifier regulating valves is inefficient, cumbersome to install and disassemble, difficult to adapt to batch testing, and the test results are biased.

Method used

A pressure testing device was designed, comprising a high-temperature chamber, a low-temperature chamber, and a normal-temperature chamber. It is equipped with a pressure testing mechanism and a sealing structure, and uses an electric rotating rod and a telescopic rod to achieve automated installation and disassembly. It combines dual pressure sensors for accurate measurement, supports pressure resistance testing under different temperature environments, and has a detachable cleaning plate for quick cleaning.

Benefits of technology

It achieves efficient and accurate pressure testing of control valves, and can simulate actual use conditions under different temperature environments, thereby improving the accuracy and efficiency of test results and extending the service life of equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to the field of regulating valve testing, and discloses a regulating valve pressure measuring equipment for an air conditioner dehumidifier, which comprises a workbench and three pressure measuring box bodies arranged on the top of the workbench, the three pressure measuring box bodies are a high-temperature box, a low-temperature box and a normal-temperature box, pressure measuring mechanisms are arranged in the high-temperature box, the low-temperature box and the normal-temperature box, the pressure measuring mechanism comprises a storage structure arranged at the bottom of the pressure measuring box body and used for placing a regulating valve, the inner walls of the pressure measuring box body are provided with sealing structures used for sealing the end of the regulating valve, the sealing structure comprises a sealing head, the sealing head can move in the pressure measuring box body, the end of the regulating valve placed on the storage structure can be sealed, and a first pipeline interface used for connecting a test pipeline is arranged on one side of the pressure measuring box body. Double measurement is used for verification, so that the test result is more accurate. The limit pressure value when the regulating valve is deformed or damaged can be measured by continuously filling gas, and the limit pressure resistance of the regulating valve can be known.
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Description

Technical Field

[0001] This invention relates to a pressure measuring device, specifically a pressure measuring device for the regulating valve of an air conditioning dehumidifier, belonging to the field of regulating valve testing. Background Technology

[0002] An air conditioning dehumidifier is a device used to remove moisture from the air. It is typically used in situations where indoor humidity is too high, such as damp basements or bathrooms. The working principle of an air conditioning dehumidifier is to draw in humid air, where a compressor drives a heat exchanger (evaporator and condenser) to condense the moisture in the air into water droplets, which are then collected. The treated, dry, warm air is then expelled outside the machine, and this cycle continues to lower the indoor humidity. The regulating valve inside the air conditioning dehumidifier is used to adjust the gas pressure and flow rate within the dehumidifier. By adjusting the opening of the regulating valve, the dehumidification effect and efficiency of the dehumidifier can be controlled.

[0003] Because air conditioning dehumidifiers operate in diverse environments, their working conditions also vary. Due to these environmental differences, the working pressure of their internal regulating valves also differs. To adapt to different usage requirements, pressure testing is necessary during the manufacturing process of the regulating valves to determine their pressure resistance under various conditions, thus ensuring the production of qualified regulating valves. Currently, pressure testing of regulating valves typically involves manual installation on a workbench, which is cumbersome, inefficient, unsuitable for batch testing, and leads to some inconsistency in the test results. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a pressure measuring device for the regulating valve of an air conditioning dehumidifier.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] A pressure testing device for the regulating valve of an air conditioning dehumidifier includes a workbench and three pressure testing chambers mounted on its top. The three pressure testing chambers are a high-temperature chamber, a low-temperature chamber, and a normal-temperature chamber. Each of the high-temperature chamber, low-temperature chamber, and normal-temperature chamber has a pressure testing mechanism installed inside. The pressure testing mechanism includes a storage structure for placing the regulating valve installed at the bottom of the pressure testing chamber. The inner walls of the pressure testing chamber are all equipped with sealing structures for sealing the end of the regulating valve. The sealing structure includes a sealing head that can move inside the pressure testing chamber and seal the end of the regulating valve placed on the storage structure. A first pipe interface for connecting a test pipe is provided on one side of the pressure testing chamber.

[0007] Optionally, the sealing head can be a first sealing head or a second sealing head. The second sealing head is installed on the side wall inside the pressure measuring box where the first pipe interface is located, and the first sealing head is installed on the other side walls inside. One end of the first sealing head is detachably installed on the end of the first mounting end plate, and one end of the second sealing head is detachably installed on the end of the second mounting end plate. The other end of both the first and second mounting end plates is equipped with an electric rotating rod, and the other end of the electric rotating rod is equipped with a second telescopic rod. The other end of the second telescopic rod is slidably installed with the inner wall of the pressure measuring box.

[0008] Optionally, a second electric slider is installed at the other end of the second telescopic rod. The second electric slider is slidably mounted on a slide rail, which is set along the length of the inner wall of the pressure measuring chamber. The slide rail can move up and down on the inner wall of the pressure measuring chamber.

[0009] Optionally, both ends of the inner wall of the pressure measuring box are vertically provided with sliding grooves, and both ends of the slide rail are connected to a third electric slider, which is slidably installed inside the sliding groove.

[0010] Optionally, both the first and second sealing heads are connected to insert blocks at their ends facing the second telescopic rod. Both the first and second mounting end plates are provided with fitting holes at their ends. The inner middle of the fitting hole is provided with a fitting groove for inserting the insert blocks. Limit bolts are threaded to both sides of the fitting hole. The outer walls of both the first and second sealing heads are provided with external threads. After the first and second sealing heads at the ends of the first and second mounting end plates are disassembled, a cleaning plate can be installed. Insert blocks are also connected to one side of the cleaning plate.

[0011] Optionally, the second plug head is hollow inside, and a second pipe interface is provided at the top of the end near the plug. A one-way valve is installed at the end of the second plug head away from the plug. A first pressure sensor is installed at the end of the first plug head away from the plug. A protective tube is connected to the top of the second mounting end plate.

[0012] Optionally, the end of the second pipe interface is connected to a connecting pipe, one end of which extends through the protective pipe to the outside and connects to the first pipe interface.

[0013] Optionally, the storage structure includes a base plate, a third telescopic rod is inserted and installed at one end of the base plate, and arc-shaped limiting frames are connected around the other end of the base plate. Multiple second pressure sensors are installed inside the limiting frames. The bottom end of the third telescopic rod is connected to the bottom end of the pressure measuring box. A box cover is inserted and installed at the top of the pressure measuring box, and a storage structure is also installed at the bottom of the box cover.

[0014] Optionally, a pick-and-place mechanism is slidably mounted on one side of the workbench, and a moving groove for the pick-and-place mechanism to slide is provided along the length of one side of the workbench. The moving groove and the first pipe interface are located on different sides.

[0015] Optionally, the picking and placing mechanism includes an "L"-shaped bracket, a top plate is rotatably mounted on the top of the vertical end of the bracket, a motor is installed between the bottom of the top plate and the top of the vertical end of the bracket, a first telescopic rod is vertically mounted on both ends of the bottom of the top plate, a gripper is installed on the bottom of the first telescopic rod, a first electric slider is slidably mounted inside the moving groove, and one side of the horizontal end of the bracket is connected to the side wall of the first electric slider.

[0016] The beneficial effects of this invention are reflected in:

[0017] 1. By installing a first pressure sensor at the end of the first sealing head, the pressure value measured can be compared with a preset standard pressure value to determine the pressure resistance of the control valve. If the measured pressure value is less than the standard value, the control valve has deformed or ruptured and leaked. Furthermore, during the pressure measurement process, after the outer wall of the end pipe of the control valve deforms, the value of the second pressure sensor on the limit bracket will also increase accordingly. If the increased pressure value exceeds the preset range, it also indicates that the control valve has deformed. This dual measurement verification makes the test results more accurate. Simultaneously, by continuously filling with gas, the ultimate pressure value when the control valve deforms or is damaged can be measured, thus determining the control valve's ultimate pressure resistance.

[0018] 2. By setting the pressure testing chambers to high-temperature, low-temperature, and normal-temperature environments, the same type of regulating valve can be subjected to pressure tests under different temperature conditions, simulating the pressure resistance of the regulating valve under different ambient temperatures during actual use. Multiple tests can be performed in each chamber at different temperatures, providing a more intuitive and accurate representation of the results.

[0019] 3. By incorporating a detachable cleaning plate, the inner wall of the pressure testing chamber can be cleaned using only the opposite cleaning plate. This removes long-term accumulated impurities. The debris that falls off and accumulates at the bottom of the pressure testing chamber can then be removed using an external vacuum cleaner. Cleaning the inner wall of the pressure testing chamber is simple and quick, eliminating the need for manual cleaning and increasing efficiency. Proper cleaning extends the lifespan of the pressure testing chamber, prevents internal impurities from affecting subsequent testing, and improves test accuracy. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 This is a side view of the workbench of the present invention.

[0023] Figure 3 This is a schematic diagram of the first sealing mechanism of the present invention.

[0024] Figure 4 This is a schematic diagram of the second sealing mechanism of the present invention.

[0025] Figure 5 This is a schematic diagram of the installation structure of the second sealing head and the second mounting end plate of the present invention.

[0026] Figure 6 This is a schematic diagram of the second sealing head structure of the present invention.

[0027] Figure 7 This is a schematic diagram of the first mounting end plate structure of the present invention.

[0028] Figure 8 This is a schematic diagram of the limiting frame structure of the present invention.

[0029] Figure 9 This is a schematic diagram of the installation structure of the cleaning plate and the second telescopic rod of the present invention.

[0030] In the attached diagram: 1. Workbench; 2. High-temperature chamber; 3. Low-temperature chamber; 4. Normal-temperature chamber; 5. Chamber cover; 6. First pipe interface; 7. Support; 8. Motor; 9. First telescopic rod; 10. Gripper; 11. Top plate; 12. Moving groove; 13. First electric slider; 14. Slide groove; 15. First pressure sensor; 16. First sealing head; 17. First mounting end plate; 18. Second telescopic rod; 19. Second electric slider; 20. Slide rail; 21. Second sealing head; 22. Second mounting end plate; 23. Limit bolt; 24. Protective pipe; 25. Connecting pipe; 26. One-way valve; 27. Insert block; 28. Second pipe interface; 29. ​​Insertion groove; 30. Limit frame; 31. Base plate; 32. Third telescopic rod; 33. Electric rotating rod; 34. Cleaning plate. Detailed Implementation

[0031] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0032] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application should have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.

[0033] See Figure 1-9As shown, a pressure testing device for the regulating valve of an air conditioning dehumidifier includes a workbench 1 and three pressure testing chambers mounted on its top. The three pressure testing chambers are a high-temperature chamber 2, a low-temperature chamber 3, and a normal-temperature chamber 4. Each of the high-temperature chamber 2, low-temperature chamber 3, and normal-temperature chamber 4 has a pressure testing mechanism installed inside. The pressure testing mechanism includes a storage structure for placing the regulating valve installed at the bottom of the pressure testing chamber. The inner walls of the pressure testing chamber are all equipped with sealing structures for sealing the end of the regulating valve. The sealing structure includes a sealing head that can move inside the pressure testing chamber and seal the end of the regulating valve placed on the storage structure. A first pipe interface 6 for connecting a test pipe is provided on one side of the pressure testing chamber.

[0034] As a technical optimization of the present invention, the plugging head can be a first plugging head 16 or a second plugging head 21. The second plugging head 21 is installed on the side wall of the pressure measuring box where the first pipe interface 6 is opened, and the first plugging head 16 is installed on the other side walls inside. One end of the first plugging head 16 is detachably installed on the end of the first mounting end plate 17, and one end of the second plugging head 21 is detachably installed on the end of the second mounting end plate 22. The other end of the first mounting end plate 17 and the second mounting end plate 22 are both equipped with an electric rotating rod 33, and the other end of the electric rotating rod 33 is equipped with a second telescopic rod 18. The other end of the second telescopic rod 18 is slidably installed with the inner wall of the pressure measuring box.

[0035] As a technical optimization of the present invention, a second electric slider 19 is installed at the other end of the second telescopic rod 18. The second electric slider 19 is slidably installed on the slide rail 20. The slide rail 20 is set along the length direction of the inner wall of the pressure measuring box. The slide rail 20 can move up and down on the inner wall of the pressure measuring box.

[0036] As a technical optimization of the present invention, both ends of the inner wall of the pressure measuring box are vertically provided with slide grooves 14, and both ends of the slide rail 20 are connected to third electric sliders, which are slidably installed inside the slide grooves 14. The third electric sliders can drive the slide rail 20 to move up and down inside the slide grooves 14 to adapt to different working requirements.

[0037] As a technical optimization of the present invention, the first sealing head 16 and the second sealing head 21 are both connected to the end facing the second telescopic rod 18 with a plug 27. The first mounting end plate 17 and the second mounting end plate 22 are both provided with a fitting hole. The inner center of the fitting hole is provided with a insertion groove 29 for inserting the plug 27. Limiting bolts 23 are threadedly connected to both sides of the fitting hole. The outer walls of the first sealing head 16 and the second sealing head 21 are both provided with external threads. After the first sealing head 16 and the second sealing head 21 at the ends of the first mounting end plate 17 and the second mounting end plate 22 are disassembled, a cleaning plate 34 can be installed. A plug 27 is also connected to one side of the cleaning plate 34. After the plug 27 is inserted into the insertion groove 29, it can limit the first sealing head 16 and the second sealing head 21, preventing rotational displacement. The end of the limiting bolt 23 can abut against the outer wall of one end of the plug 27, making it less likely for the first sealing head 16 and the second sealing head 21 to fall off after installation.

[0038] As a technical optimization of the present invention, the interior of the second plug head 21 is hollow, and a second pipe interface 28 is provided at the top of the end near the insertion block 27. A one-way valve 26 is installed at the end of the second plug head 21 away from the insertion block 27. A first pressure sensor 15 is installed at the end of the first plug head 16 away from the insertion block 27. A protective tube 24 is connected to the top of the second mounting end plate 22. The second pipe interface 28 is connected to one end of the connecting pipe 25. The connecting pipe 25 introduces external gas into the interior of the second plug head 21, and then the gas enters the regulating valve to be tested through the one-way valve 26.

[0039] As a technical optimization of the present invention, a connecting pipe 25 is connected to the end of the second pipe interface 28. One end of the connecting pipe 25 extends through the protective pipe 24 to the outside and connects to the first pipe interface 6. The protective pipe 24 can protect the bottom of the connecting pipe 25 and prevent damage and detachment at the connection between the connecting pipe 25 and the second sealing head 21.

[0040] As an optimized technical solution of the present invention, the storage structure includes a base plate 31, with a third telescopic rod 32 inserted into one end of the base plate 31. Arc-shaped limiting frames 30 are connected to all four sides of the other end of the base plate 31. Multiple second pressure sensors are installed inside the limiting frames 30. The bottom end of the third telescopic rod 32 is connected to the bottom of the pressure testing chamber. A cover 5 is inserted into the top of the pressure testing chamber, and the storage structure is also installed at the bottom of the cover 5. This storage structure can both store and limit the pressure of the regulating valve under test and perform pressure testing on the regulating valve during testing, making the subsequent test results more accurate.

[0041] As a technical optimization of the present invention, a pick-and-place mechanism is slidably mounted on one side of the workbench 1, and a moving groove 12 for the pick-and-place mechanism to slide is provided along the length direction on one side of the workbench 1. The moving groove 12 and the first pipe interface 6 are located on different sides. This avoids collision interference with the pipes connected to the outside of the first pipe interface 6 when the bracket 7 moves.

[0042] As a technical optimization of the present invention, the pick-and-place mechanism includes an "L"-shaped bracket 7. A top plate 11 is rotatably mounted on the top of the vertical end of the bracket 7. A motor 8 is installed between the bottom of the top plate 11 and the top of the vertical end of the bracket 7. First telescopic rods 9 are vertically mounted on both ends of the bottom of the top plate 11. A gripper 10 is installed on the bottom of the first telescopic rod 9. A first electric slider 13 is slidably mounted inside the moving groove 12. One side of the horizontal end of the bracket 7 is connected to the side wall of the first electric slider 13. The pick-and-place mechanism facilitates the picking and placing of the regulating valve and the lid 5 on the top of the pressure testing chamber during testing, making it more intelligent and eliminating the need for manual handling by personnel.

[0043] In use, the workbench 1 is moved to the desired working position, and a conveying device for conveying the regulating valve is placed on the side of the workbench 1 near the pick-and-place mechanism. The outer end of the first pipe interface 6 is connected to an externally preset air pump. Inside the pressure testing chamber, the corresponding sealing head and limit frame 30 are replaced according to the size of the regulating valve to be tested. When replacing the limit frame 30, the base plate 31 is also removed and replaced together.

[0044] Before pressure testing, the desired pressure testing chamber is selected. Then, the first electric slider 13 moves along the moving groove 12, thereby moving the pick-and-place mechanism to the side of the selected pressure testing chamber. During pressure testing, the motor 8 drives the top plate 11 to rotate. One of the first telescopic rods 9 moves above the regulating valve to be tested, and the other first telescopic rod 9 moves to the top of the corresponding pressure testing chamber. Then, both first telescopic rods 9 extend downwards, using the grippers 10 to clamp the regulating valve to be tested and the chamber cover 5, respectively. After clamping, the two first telescopic rods 9 retract, and the motor 8 simultaneously drives the top plate 11 to rotate. This continues until the regulating valve to be tested is directly above the pressure testing chamber. Then, the first telescopic rod 9 extends downwards to place the regulating valve to be tested onto the limiting frame 30 inside the pressure testing chamber. Taking a four-way regulating valve as an example, the four pipes of the regulating valve are placed inside the four limiting frames 30. After placement, the first telescopic rod 9 retracts, and the top plate 11 rotates again, rotating the cover 5 above the corresponding pressure measuring chamber. Then, the cover 5, driven by the first telescopic rod 9, seals the top of the pressure measuring chamber below.

[0045] After the cover 5 is placed on top of the pressure testing chamber, the limiting bracket 30 below the cover 5 moves downward under the action of the third telescopic rod 32 above it until the upper and lower limiting brackets 30 engage with the placed regulating valve to limit its position. The contact surface between the inner wall of the limiting bracket 30 and the regulating valve can be made of rubber. Subsequently, the second telescopic rod 18 around the inside of the pressure testing chamber extends, and the electric rotating rod 33 at the end rotates along with it. The three first sealing heads 16 and one second sealing head 21 are respectively sealed to the end pipe of the regulating valve through threads. Because the connecting pipe 25 connected to the second sealing head 21 is relatively long, the extension and retraction of the second telescopic rod 18, as well as the forward or reverse rotation of the electric rotating rod 33, will not damage the connecting pipe 25, and the connecting pipe 25 can be used to transport gas normally.

[0046] During pressure testing, an external air pump injects a preset amount of gas into the regulating valve through connecting pipe 25 and the second sealing head 21. After a period of stillness, the pressure value measured by the first pressure sensor 15 at the end of the first sealing head 16 is displayed on an external preset display terminal. By comparing the measured pressure value with the preset standard pressure value, the pressure resistance of the regulating valve can be determined. If the measured pressure value is less than the standard value, the regulating valve has deformed or ruptured and leaked. Furthermore, during the pressure test, after the outer wall of the end pipe of the regulating valve deforms, the value of the second pressure sensor on the limit bracket 30 will also increase accordingly. If the increased pressure value exceeds the preset range, it also indicates that the regulating valve has deformed. Dual measurement verification makes the test results more accurate. At the same time, by continuously injecting gas, the ultimate pressure value when the regulating valve deforms or is damaged can be measured, thus determining the ultimate pressure resistance of the regulating valve.

[0047] By setting up pressure testing chambers as high-temperature chamber 2, low-temperature chamber 3, and ambient-temperature chamber 4, pressure tests can be conducted on the same type of regulating valve under different temperature environments, simulating the valve's pressure resistance under different ambient temperatures during actual use. Multiple tests can be performed in each chamber at different temperatures, providing a more intuitive and accurate representation of the results. The high-temperature chamber 2 has a heating wire at its bottom, allowing for constant temperature control as needed. The low-temperature chamber 3 has a condenser coil inside its inner wall, operating similarly to a common refrigerator. Both the high-temperature chamber 2 and the low-temperature chamber 3 utilize existing heating and cooling technologies, and both can be set to a constant temperature, which will not be elaborated upon further. When placing the regulating valve in a pressure testing chamber at different ambient temperatures, allow it to wait for a period of time until the valve's temperature is the same as or close to the internal temperature before testing.

[0048] Furthermore, during the test, the position of the second telescopic rod 18 can be adjusted vertically and horizontally according to the adjusted dimensions, and the position of the lower limit frame 30 can also be adjusted via the third telescopic rod 32, so that the position of the regulating valve does not need to be adjusted again after it is placed in subsequent testing.

[0049] After the test, the first sealing head 16 and the second sealing head 21 reverse under the drive of the electric rotating rod 33, and the second telescopic rod 18 shortens, causing the first sealing head 16 and the second sealing head 21 to disengage from the end of the regulating valve. Then, the gripper 10 pulls the cover 5 upwards to disengage it, and the other gripper 10 rotates to clamp the tested regulating valve upwards from the inside of the box and place it in the preset storage position. Then, the regulating valve to be tested is clamped and placed into the inside of the box, and this cycle is repeated for multiple sets of tests.

[0050] After prolonged use, the pressure testing chamber can be cleaned during idle periods. To clean, first pull the cover 5 upwards and remove it. Then, remove the bottom plate 31 inside the pressure testing chamber along with the limiting bracket 30 from the end of the third telescopic rod 32 for easy removal and cleaning. This also facilitates cleaning the inside of the pressure testing chamber. The first sealing head 16 and the second sealing head 21 can then be removed from the ends of the first mounting end plate 17 and the second mounting end plate 22, respectively. Next, install the cleaning plate 34 at the ends of the first mounting end plate 17 and the second mounting end plate 22. The installation method of the cleaning plate 34 is the same as that of the first sealing head 16 and the second sealing head 21. Both methods involve inserting the end plug 27 into the insertion slot 29, and then tightening the limiting bolts 23 on both sides for fixation.

[0051] When cleaning the inner wall of the pressure testing chamber, the area to be cleaned can be cleaned using the cleaning plate 34 opposite it. Driven by the second telescopic rod 18, the cleaning plate 34 can move horizontally forward to contact the inner wall of the pressure testing chamber. Simultaneously, the second electric slider 19 slides on the slide rail 20, and the slide rail 20 moves up and down along the slide groove 14 using the third electric slider. Furthermore, the electric rotating rod 33 can also drive the cleaning plate 34 to rotate, allowing the cleaning plate 34 to thoroughly clean the inner wall of the pressure testing chamber. This removes long-term accumulated impurities. The debris that falls off and accumulates at the bottom of the pressure testing chamber can then be removed using an external vacuum cleaner. Cleaning the inner wall of the pressure testing chamber is simple and quick, eliminating the need for manual cleaning and increasing efficiency. Cleaning also extends the service life of the pressure testing chamber, prevents internal impurities from affecting subsequent testing, and improves testing accuracy.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A pressure measuring device for the regulating valve of an air conditioning dehumidifier, comprising a workbench (1) and three pressure measuring chambers disposed on its top, characterized in that, The three pressure testing chambers are a high temperature chamber (2), a low temperature chamber (3), and a normal temperature chamber (4). Each of the three chambers has a pressure testing mechanism installed inside. The pressure testing mechanism includes a storage structure for placing the regulating valve installed at the bottom of the pressure testing chamber. The inner walls of the pressure testing chamber are equipped with a sealing structure for sealing the end of the regulating valve. The sealing structure includes a sealing head that can move inside the pressure testing chamber and seal the end of the regulating valve placed on the storage structure. A first pipe interface (6) for connecting the test pipe is provided on one side of the pressure testing chamber. The plug can be a first plug (16) or a second plug (21). The second plug (21) is installed on the side wall of the pressure measuring box where the first pipe interface (6) is opened. The first plug (16) is installed on the other side walls inside. One end of the first plug (16) is detachably installed on the end of the first mounting end plate (17). One end of the second plug (21) is detachably installed on the end of the second mounting end plate (22). The other end of the first mounting end plate (17) and the second mounting end plate (22) are both equipped with an electric rotating rod (33). The other end of the electric rotating rod (33) is equipped with a second telescopic rod (18). The other end of the second telescopic rod (18) is slidably installed with the inner wall of the pressure measuring box. The other end of the second telescopic rod (18) is equipped with a second electric slider (19), which is slidably mounted on the slide rail (20). The slide rail (20) is set along the length of the inner wall of the pressure measuring box, and the slide rail (20) can move up and down on the inner wall of the pressure measuring box. Both ends of the inner wall of the pressure measuring box are vertically provided with sliding grooves (14), and both ends of the slide rail (20) are connected to a third electric slider, which is slidably installed inside the sliding groove (14). Both the first sealing head (16) and the second sealing head (21) are connected to a plug (27) at one end facing the second telescopic rod (18). Both the first mounting end plate (17) and the second mounting end plate (22) are provided with a fitting hole. The middle of the fitting hole is provided with a plug groove (29) for the plug (27) to be inserted and installed. Both sides of the fitting hole are threaded with limit bolts (23). The outer walls of the first sealing head (16) and the second sealing head (21) are provided with external threads. After the first sealing head (16) and the second sealing head (21) at the ends of the first mounting end plate (17) and the second mounting end plate (22) are disassembled, a cleaning plate (34) can be installed. A plug (27) is also connected to one side of the cleaning plate (34). The interior of the second plug (21) is hollow, and a second pipe interface (28) is provided at the top of the end near the plug (27). A one-way valve (26) is installed at the end of the second plug (21) away from the plug (27). A first pressure sensor (15) is installed at the end of the first plug (16) away from the plug (27). A protective tube (24) is connected to the top of the second mounting end plate (22).

2. The pressure measuring device for the regulating valve of an air conditioning dehumidifier according to claim 1, characterized in that, The end of the second pipe interface (28) is connected to a connecting pipe (25), one end of which extends through the protective pipe (24) to the outside and connects to the first pipe interface (6).

3. The pressure measuring device for the regulating valve of an air conditioning dehumidifier according to claim 1, characterized in that, The storage structure includes a base plate (31), one end of which is connected to a third telescopic rod (32), and the other end of the base plate (31) is connected to an arc-shaped limiting frame (30) around its perimeter. Multiple second pressure sensors are installed inside the limiting frame (30). The bottom end of the third telescopic rod (32) is connected to the bottom end of the pressure measuring box. A box cover (5) is connected to the top of the pressure measuring box, and a storage structure is also installed at the bottom of the box cover (5).

4. The pressure measuring device for the regulating valve of an air conditioning dehumidifier according to claim 1, characterized in that, A pick-and-place mechanism is slidably installed on one side of the workbench (1), and a moving groove (12) for the picking-and-place mechanism to slide is provided on one side of the workbench (1) along the length direction. The moving groove (12) and the first pipe interface (6) are located on different sides.

5. The pressure measuring device for the regulating valve of an air conditioning dehumidifier according to claim 4, characterized in that, The picking and placing mechanism includes an "L"-shaped bracket (7), a top plate (11) is rotatably mounted on the top of the vertical end of the bracket (7), a motor (8) is installed between the bottom of the top plate (11) and the top of the vertical end of the bracket (7), a first telescopic rod (9) is vertically mounted on both ends of the bottom of the top plate (11), a gripper (10) is installed on the bottom of the first telescopic rod (9), a first electric slider (13) is slidably mounted inside the moving groove (12), and one side of the horizontal end of the bracket (7) is connected to the side wall of the first electric slider (13).

Citation Information

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