Fluid control valve, refrigerant device, and working machine

Abstract

The present application provides a kind of fluid control valve, refrigerant device and working machine, including valve, valve plug and anti-leakage device, valve is equipped with the first, second, third chamber that communicates, and is equipped with first joint part and push part in the outside of first chamber, valve plug can be displaced in the first chamber of valve, to open and close second, third chamber, anti-leakage device includes body and closure, the bearing portion of body is used to assemble closure, and second joint part that can be displaced along first joint part is defined at one side, the allowance portion that is communicated with second joint part is defined at the other side, the two sides of closure define bearing area and identification area, bearing area can bear the top resistance force of push part of valve, and make identification area relative allowance portion displacement to preset identification position, to be used for staff to quickly identify that anti-leakage device has closed the first chamber of valve, reach the practical benefit of reliable leak prevention.

Description

Technical Field

[0001] The present invention relates to a fluid control valve that allows for rapid confirmation that the leak preventer has tightly and reliably sealed the first chamber of the valve, thereby improving the effectiveness of leak prevention. Background Technology

[0002] In the present day, please refer to Figures 1 to 3 The testing machine is equipped with a testing device 12 on the machine base 11. The testing device 12 is equipped with a tester 121 for holding and testing electronic components, and a crimping arm 122 that can be displaced in the YZ direction. The crimping arm 122 is equipped with a temperature controller 123 and a pressure reducer 124. The temperature controller 123 is connected to a refrigerant device 13 independently configured outside the machine base 11. The refrigerant device 130 of the refrigerant device 13 is connected to a fluid control valve, which can be a refrigerant control valve 132, located on the side of the machine base 11, via a first delivery pipe 131. The refrigerant control valve 132 delivers refrigerant to the temperature controller 123 via a second delivery pipe 133. The low-temperature temperature controller 123 can control the temperature of the electronic components of the tester 121 via the pressure reducer 124, so that the electronic components can perform testing operations in a low-temperature environment simulating the future application environment.

[0003] However, when moving the testing machine, the operator must disconnect the first delivery pipe 131 of the refrigerant unit 13 from the refrigerant control valve 132 and close the refrigerant control valve 132. For example... Figure 2 The refrigerant control valve 132 has three interconnected chambers: a first chamber 1321, a second chamber 1322, and a third chamber 1323. The third chamber 1323 is connected to the first delivery pipe 131. The second chamber 1322 is also equipped with a connecting pipe 1324 that connects to the second delivery pipe 133. A movable valve plug 1325 with an O-ring 1326 is inserted into the first chamber 1321. The refrigerant control valve 132 is also equipped with a cap 1327 with a thin gasket 1328 inside to close the opening of the first chamber 1321. Operators can first remove the cap 1327 and rotate the valve plug 1325 to move it inward within the first chamber 1321, thereby closing the second chamber 1322 and the third chamber 1323, and thus shutting off the refrigerant control valve 132. Conversely, if... Figure 3 After positioning and testing the machine, the valve plug 1325 can be rotated to reverse the displacement and open the second chamber 1322 and the third chamber 1323. The cover 1327 is screwed onto the outside of the first chamber 1321, and the opening of the first chamber 1321 is sealed with a thin gasket 1328 to prevent refrigerant leakage.

[0004] However, as Figure 3As shown, under repeated opening and closing operations, the O-ring 1326 of the valve plug 1325 of the refrigerant control valve 132 will reciprocate and rub against the first chamber 1321, which is prone to wear and deformation. The thin gasket 1328 will also be deformed by pressure damage due to repeated installation and removal of the cover 1327. Under these deformation factors, if the force of the operator to manually lock the cover 1327 is insufficient, the deformed thin gasket 1328 of the cover 1327 may not be able to fit tightly against the opening of the first chamber 1321, causing the refrigerant to leak from between the first chamber 1321 and the cover 1327. This not only wastes refrigerant energy costs, but also requires downtime to deal with the leaked refrigerant, affecting production efficiency. For foreign countries with high environmental protection requirements, the issue of whether leakage prevention is effective is particularly important. Summary of the Invention

[0005] The purpose of this invention is to provide a fluid control valve, a refrigerant device, and a working machine.

[0006] The technical solution provided by this invention is as follows:

[0007] A fluid control valve, characterized in that it comprises:

[0008] Valve: It has a first chamber and a second chamber communicating along a first axial direction, and a third chamber communicating with the first chamber along a second axial direction. A push part and a first engagement part are provided outside the first chamber.

[0009] Valve plug: capable of displacement within the first chamber of the valve, thereby enabling the opening and closing of the second and third chambers;

[0010] Leakage preventer: includes a body and a closure. The body has a support portion inside. One side of the support portion defines a second joint portion that can be displaced along the first joint portion of the valve. The other side of the support portion defines a relief portion that communicates with the second joint portion. The closure portion is assembled to the support portion of the body and has a bearing area and a recognition area. The bearing area can withstand the pushing force of the pushing portion of the valve, and the recognition area can be displaced relative to the relief portion to a preset recognition position.

[0011] The fluid control valve, wherein: the body of the anti-leak device has a radially recessed support portion on its inner wall surface, and a second engagement portion is recessed on a first surface facing a second surface, and a clearance portion communicating with the second engagement portion is provided on the second surface facing the first surface.

[0012] The fluid control valve, wherein the receiving portion of the body of the anti-leakage device is provided with a limiting structure to limit the closure element.

[0013] The fluid control valve wherein the depth dimension of the clearance portion of the anti-leakage device is smaller than the depth dimension of the second engagement portion.

[0014] The fluid control valve, wherein: one side of the closure defines the bearing area at a position relative to the push portion, the bearing area is provided with at least one mounting area around its periphery, the mounting area is fitted to the mounting portion of the body, and the other side of the closure is provided with the identification area relative to the clearance portion.

[0015] The fluid control valve, wherein the closure is provided with at least one color-coated mark in the identification area.

[0016] The fluid control valve, wherein: the closure has a stepped portion protruding in the identification area, and at least one mark is provided on the outer circumferential surface of the stepped portion.

[0017] The fluid control valve, wherein the preset identification position is a position that is flush with or extends beyond the second side of the anti-leakage device.

[0018] A refrigerant device, characterized in that it comprises:

[0019] Refrigerant system: It is provided with at least one refrigerant device, at least one first conveyor and at least one second conveyor, the refrigerant device is capable of supplying refrigerant, and the first conveyor is connected to the refrigerant device to transport the refrigerant;

[0020] At least one of the fluid control valves: its third chamber is connected to the first conveyor, and its second chamber is connected to the second conveyor to convey the refrigerant.

[0021] A work machine, characterized in that it comprises:

[0022] Machine tool;

[0023] Feeding device: disposed on the machine and equipped with at least one feeder for accommodating at least one electronic component to be tested;

[0024] Material receiving device: disposed on the machine and provided with at least one material receiving device for accommodating at least one measured electronic component;

[0025] Operating device: disposed on the machine tool, and equipped with at least one operating device and at least one temperature controller, the operating device for performing preset operations on the electronic component, and the temperature controller for controlling the temperature of the electronic component;

[0026] At least one of the refrigerant devices: its second delivery device is capable of being connected to at least one of the thermostats, and the fluid control valve is capable of controlling the second delivery device to supply or stop supplying refrigerant to the thermostat.

[0027] Transfer device: disposed on the machine tool and equipped with at least one transfer device for transferring the electronic component;

[0028] Central control unit: Used to control and integrate the operation of various devices to perform automated operations.

[0029] The present invention provides a fluid control valve in which the second joint of the anti-leakage device is displaced along the first joint of the valve, causing the bearing area to bend and deform toward the relief part under the pushing force of the valve's pushing part, thereby displacing the identification area to a preset identification position, so that the operator can quickly confirm by inspection tools or visual inspection that the anti-leakage device has effectively sealed the first chamber of the valve, thus achieving the practical benefit of effective anti-leakage.

[0030] This invention provides a fluid control valve in which the sealing area of ​​the anti-leakage device bends and deforms towards the relief area under the pushing force of the valve's pushing part, causing the identification area to shift to a preset identification position. This allows the operator to quickly confirm that the anti-leakage device has effectively sealed the first chamber of the valve to prevent leakage, eliminating the need for downtime to clean up leaked fluid. This achieves practical benefits such as saving fluid energy costs and improving production efficiency.

[0031] This invention provides a fluid control valve in which the sealing area of ​​the anti-leakage device is bent and deformed towards the relief area by the pushing force of the valve's pushing part, causing the identification area to shift to a preset identification position, so that the staff can quickly confirm that the anti-leakage device has indeed sealed the first chamber of the valve to prevent leakage, thereby effectively preventing the fluid from the fluid control valve from polluting the factory area and improving the environmental quality of the factory area. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of an existing test machine.

[0033] Figures 2 to 3 This is a schematic diagram illustrating the use of an existing refrigerant control valve.

[0034] Figure 4 This is an exploded view of the fluid control valve of the present invention.

[0035] Figures 5 to 6 This is a schematic diagram illustrating the use of the fluid control valve of the present invention.

[0036] Figures 7 to 8 This is a diagram of a second embodiment of the closure component of the present invention.

[0037] Figure 9 This is a diagram of the third embodiment of the closure component of the present invention.

[0038] Figure 10 This is a schematic diagram of the machine used in this invention.

[0039] Explanation of reference numerals in the attached drawings: Machine base 11; Testing device 12; Tester 121; Crimping arm 122; Temperature controller 123; Presser 124; Refrigerant device 13; Refrigerant 130; First delivery pipe 131; Refrigerant control valve 132; First chamber 1321; Second chamber 1322; Third chamber 1323; Adapter pipe 1324; Valve plug 1325; O-ring 1326; Cap 1327; Thin gasket 1328; Second delivery pipe 133; Fluid control valve 20; Valve 21; First valve section 211; Second valve section 212; Third valve section 213; First chamber 214; Internal thread 2141; Second chamber 215; Third chamber 216; Pushing part 217; First joint part 218; Valve plug 22; Stopping part 221; Drive part 222; External thread 223; O-ring 224; Leakage preventer 23; Body 231; First surface 2311; Second surface 2312; Inner wall surface 2313; Supporting part 2314; Baffle surface 2315; Limiting surface 2316; Second joint part 2317; Relief part 2318; Closure part 232; Supporting area 2321; Identification area 2322; Loading area 2323; Mark 2324; Step part 2325; Outer ring surface 2326; Mark 2327; Transfer pipe 24; First axis A; Second axis B; Preset identification position C; First conveyor 31; Second conveyor 32; Refrigerant 33; Machine base 40; Feeding device 50; Receiving device 60; Working device 70; Tester 71; Crimper 72; Temperature controller 73; Transfer device 80; First transferor 81; Second transferor 82; Third transferor 83; Fourth transferor 84. Detailed Implementation

[0040] To provide a better understanding of the present invention, a preferred embodiment is described in detail below with reference to the accompanying drawings:

[0041] Please see Figure 4 As shown, the present invention provides a fluid control valve 20, which includes a valve 21, a valve plug 22 and a leak preventer 23.

[0042] The valve 21 has a first chamber and a second chamber communicating along the first axial direction A, and a third chamber communicating with the first chamber along the second axial direction B. The valve 21 also has a push part and a first engagement part outside the first chamber.

[0043] In this embodiment, the valve 21 is provided with a first valve section 211 and a second valve section 212 along the first axial direction A, and a third valve section 213 of appropriate length along the second axial direction B. The first valve section 211 has a first chamber 214 with a larger diameter recessed at its end along the first axial direction A, and the first chamber 214 has an internal thread 2141 inside. The second valve section 212 has a second chamber 215 with a smaller diameter recessed at its end along the first axial direction A and communicating with the first chamber 214. The second chamber 215 and the first chamber 214 are designed in a stepped manner. The end of the third valve section 213 has a third chamber 216 that communicates with the first chamber 214 recessed along the second axial direction B.

[0044] The valve 21 defines a push portion 217 at the end of the first valve section 211. That is, the push portion 217 is defined on the outside of the first chamber 214. Furthermore, the push portion 217 can have an appropriate taper.

[0045] The valve 21 has a first engagement portion 218 between the push portion 217 and the third valve section 213. In this embodiment, the first engagement portion 218 is an external thread.

[0046] The valve plug 22 can be displaced in the first chamber 214 of the valve 21, thereby opening and closing the second chamber 215 and the third chamber 216.

[0047] In this embodiment, the valve plug 22 has a stop portion 221 at one end and a drive portion 222 at the other end. The drive portion 222 is a polygonal hole for a drive tool (such as a screwdriver or hex wrench, not shown in the figure) to engage and drive the valve plug 22 to move. The outer ring surface of the valve plug 22 has an external thread 223, which can engage with the internal thread 2141 of the first chamber 214 and move along the first axial direction A, or can disengage from the internal thread 2141 of the first chamber 214 and disengage from the valve 21. At least one O-ring 224 is fitted on the outer ring surface of the valve plug 22 at an appropriate position near the drive portion 222 to assist in preventing leakage.

[0048] The leak-proof device 23 includes a body 231 and a closure 232.

[0049] The body 231 has a support portion inside, one side of which defines a second joint portion that can be displaced along the first joint portion 218 of the valve 21, and the other side of which defines a clearance portion that communicates with the second joint portion.

[0050] In this embodiment, the interior of the main body 231 is provided with a hollow space along the first axial direction A and penetrating the first surface 2311 and the second surface 2312, and a support portion 2314 is radially recessed on the inner wall surface 2313 of the hollow space. Furthermore, the support portion 2314 has a baffle surface 2315.

[0051] According to operational requirements, the main body 231 has a limiting structure on the supporting portion 2314 to limit the closing member 232. The limiting structure has at least one limiting component at a position relative to the stop surface 2315 of the supporting portion 2314. The limiting component can be a limiting surface or a limiting ring, and is not limited to this embodiment. In this embodiment, the limiting structure has a limiting component, which is a limiting surface 2316, at a position relative to the stop surface 2315 of the supporting portion 2314, so that the supporting portion 2314 uses the stop surface 2315 and the limiting surface 2316 to limit the closing member 232.

[0052] The first surface 2311 of the body 231 is recessed towards the second surface 2312, and a second engaging portion 2317 is provided. The second engaging portion 2317 has an internal thread and can engage or disengage the first engaging portion 218 of the valve 21. The second surface 2312 of the body 231 is recessed towards the first surface 2311, and a clearance portion 2318 communicating with the second engaging portion 2317 is provided. Furthermore, the depth dimension of the clearance portion 2318 is smaller than the depth dimension of the second engaging portion 2317, so as to shorten the actuation sequence of the identification area of ​​the closure 232 to the preset identification position.

[0053] The closure 232 is made of a soft material and can be bent and deformed elastically. It is assembled on the support part 2314 of the body 231. The closure 232 has a support area 2321 and an identification area 2322. The support area 2321 can withstand the pushing force of the push part 217 of the valve 21. The identification area 2322 can be displaced relative to the clearance part 2318 to the preset identification position C.

[0054] like Figure 4 As shown, in a first embodiment of the closure member 232, one side of the closure member 232 defines a bearing area 2321 relative to the pushing portion 217 of the valve 21. The area of ​​the bearing area 2321 is larger than the area of ​​the opening of the first chamber 214 to ensure a secure closure of the first chamber 214. At least one receiving area 2323 is provided around the bearing area 2321 of the closure member 232. The receiving area 2323 can be installed into the receiving portion 2314 of the body 231 and is limited by the stop surface 2315 and the limiting surface 2316 of the receiving portion 2314.

[0055] The other side of the closure 232 is provided with an identification area 2322 relative to the clearance portion 2318. Furthermore, the identification area is provided with at least one mark. The mark can be of different types, such as a colored coating or a polygonal pattern, which allows workers to more quickly visually identify whether the mark has shifted to a preset identification position C. The preset identification position C can be a position flush with or extending beyond the second surface 2312 of the leak-proof device 23. In this embodiment, the preset identification position C is defined as a position flush with the second surface 2312 of the body 231 of the leak-proof device 23.

[0056] Depending on the operational requirements, the second chamber 215 of the valve 21 can be fitted with at least one transfer pipe 24, which can transport fluid from the valve 21.

[0057] Please see Figure 5 As shown, the fluid control valve 20 can control the delivery of fluid, which can be refrigerant or gas, etc. In this embodiment, the fluid control valve 20 is applied to a refrigerant device (not shown) as a refrigerant control valve, and the fluid is refrigerant. The third valve section 213 of the valve 21 of the fluid control valve 20 can be fitted with the first delivery device 31 of the refrigerant device. The first delivery device 31 can deliver refrigerant from a refrigerant device (not shown) to the third chamber 216 of the valve 21. The second valve section 212 of the valve 21 can be fitted to the side of the machine base 40 and connected to the second delivery device 32 of the refrigerant device via the adapter pipe 24. The second delivery device 32 can be connected to a thermostat (not shown), so that the fluid control valve 20 delivers refrigerant to the thermostat via the second delivery device 32.

[0058] However, when moving the work machine, the fluid control valve 20 of the refrigerant device must be closed. The operator can rotate the body 231 of the anti-leakage device 23. The second joint 2317 of the body 231 is displaced outward along the first axis A on the first joint 218 of the valve 21, so that the operator can use a wrench (not shown) to reach into the first chamber 214 of the valve 21 and insert the driving part 222 of the valve plug 22 to drive it to rotate. The external thread 223 of the valve plug 22 moves along the internal thread 2141 of the valve 21 and moves into the first chamber 214, so that the stop part 221 of the valve plug 22 is embedded in and closes the second chamber 215 of the valve 21. The valve plug 22 itself closes the third chamber 216, thereby closing the fluid control valve 20.

[0059] Please see Figure 6 As shown, after the moving machine is completed, the operator uses a wrench (not shown) to rotate the valve plug 22 outward in the first chamber 214 of the valve 21. The valve plug 22 itself leaves the opening of the third chamber 216 of the valve 21, and the stop part 221 leaves the opening of the second chamber 215. This allows the valve plug 22 to open the second chamber 215 and the third chamber 216 of the valve 21, so that the second chamber 215 and the third chamber 216 can transport the refrigerant from the first conveyor 31 to the second conveyor 32 and the thermostat (not shown) via the transfer pipe 24.

[0060] To effectively prevent refrigerant leakage from valve 21, the operator screws the second joint 2317 of the body 231 of the leak preventer 23 onto the first joint 218 of valve 21, and gradually moves the body 231 towards the valve 21 along the first axial direction A. Because the bearing area 2321 of the sealing member 232 is relative to the pushing part 217 of valve 21, during the displacement of the leak preventer 23, the bearing area 2321 of the sealing member 232 will first adhere to the pushing part 217 of valve 21 and the opening of the first chamber 214, and withstand the pushing force of the pushing part 217, thus sealing the leak. As the bearing area 2321 of component 232 gradually bends and deforms towards the relief portion 2318 under pressure, the identification area 2322 is displaced along the first axis A towards the relief portion 2318. When the staff uses inspection tools or visual inspection to see that the identification area 2322 of the sealing component 232 is flush with or has exceeded the preset identification position C of the body 231, they can quickly know that the anti-leakage device 23 has reliably and tightly sealed the first chamber 214 of the valve 21, so as to facilitate the process of the fluid control valve 20 transporting refrigerant. It can reliably and effectively prevent leakage, save energy costs and improve the environmental quality of the plant area.

[0061] Please see Figure 7 , Figure 8 As shown, the first embodiment of the sealing member 232 of the fluid control valve 20 is designed in a similar manner to the second embodiment. The difference in the second embodiment is that the identification area 2322 of the sealing member 232 is provided with a mark 2324 that is a color-coated coating. The sealing member 232 is assembled on the support portion 2314 of the body 231. As the support area 2321 of the sealing member 232 gradually bends and deforms towards the relief portion 2318 of the body 231 under the push of the push portion 217 of the valve 21, the identification area 2322 is displaced along the first axis A towards the relief portion 2318, so that the mark 2324 of the identification area 2322 of the sealing member 232 exceeds the preset identification position C of the body 231. After visually observing the mark 2324 of the sealing member 232, the operator can quickly know that the anti-leakage device 23 has effectively and tightly sealed the first chamber 214 of the valve 21 to prevent leakage.

[0062] Please see Figure 9As shown, the first embodiment of the closure member 232 of the fluid control valve 20 is largely the same as the third embodiment in design. The difference in the third embodiment is that the identification area 2322 of the closure member 232 has a raised step portion 2325, and at least one mark 2327 is provided on the outer ring surface 2326 of the step portion 2325. The mark 2327 can be a pattern, a groove, or a color ring, etc. In this embodiment, the closure member 232 has a mark 2327 that is a color ring on the outer ring surface 2326 of the step portion 2325 of the identification area 2322. The sealing member 232 is assembled on the support portion 2314 of the body 231. As the bearing area 2321 of the sealing member 232 is gradually pushed by the pushing portion 217 of the valve 21 and bent and deformed toward the relief portion 2318, the identification area 2322 is displaced along the first axis A toward the relief portion 2318, so that the mark 2327 of the identification area 2322 of the sealing member 232 exceeds the preset identification position C of the body 231. After visually observing the mark 2327 of the sealing member 232, the operator can quickly know that the anti-leakage device 23 has effectively and tightly sealed the first chamber 214 of the valve 21 and effectively prevented leakage.

[0063] Please see Figures 4-6 and Figure 10The electronic component testing machine includes a machine base 40, a feeding device 50, a receiving device 60, a testing device 70, a refrigerant device 30 of the present invention, a transfer device 80, and a central control device (not shown in the figure). The feeding device 50 is mounted on the machine base 40 and is provided with at least one feeder to accommodate at least one electronic component to be tested. The receiving device 60 is mounted on the machine base 40 and is provided with at least one receiver to accommodate at least one electronic component that has already been tested. The working device 70 is disposed on the machine base 40 and is provided with at least one working device and at least one temperature controller. The working device is used to perform preset operations on the electronic components, and the temperature controller is used to control the temperature of the electronic components. Furthermore, the working device can be a crimping device, a preheating plate, or a stage, etc. In this embodiment, the working device 70 is a testing device, which is provided with a plurality of working devices, including at least one first working device and at least one second working device. The first working device is a tester 71, which is disposed on the machine base 40 for testing electronic components. The second working device is a crimping device 72 that can be displaced in at least one direction for transferring and crimping the electronic components on the tester 71. The testing device is provided with a temperature controller 73 on the crimping device 72 for controlling the temperature of the electronic components. The refrigerant device 30 of the present invention is provided with a refrigerant mechanism and at least one fluid control valve 20. The refrigerant mechanism is provided with at least one refrigerant receiver 33, at least one first conveyor 31 and at least one second conveyor 32. The refrigerant receiver 33 supplies refrigerant, and the first conveyor 31 can be connected to the refrigerant receiver 33 to convey refrigerant. The at least one fluid control valve 20 is disposed on the side of the machine base 40 and includes a valve 21, a valve plug 22 and a leak preventer 23. The third chamber 216 of the valve 21 is connected to the first conveyor 31, and the second chamber 215 is connected to the second conveyor 32 via a transfer pipe 24. The second conveyor 32 is then connected to the temperature controller 73 of the operating device 70, so that the fluid control valve 20 can control the supply or stop of refrigerant to the refrigerant receiver 33 to the temperature controller 73. The transfer device 80 is mounted on the machine base 40 and is provided with at least one transferor for transferring electronic components. In this embodiment, the first transferor 81 of the transfer device 80 takes out the electronic component to be tested from the feeder of the feeding device 50 and transfers the electronic component to be tested to the second transferor 82. The second transferor 82 carries the electronic component to be tested to one side of the working device 70 so that the crimping device 72 can transfer the electronic component to be tested between the second transferor 82 and the tester 71, and transfer the tested electronic component between the tester 71 and the third transferor 83. The third transferor 83 removes the tested electronic component so that the fourth transferor 84 can take out the tested electronic component and transfer it to the receiving device 60 for sorting and storage according to the test results. The central control device (not shown) is used to control and integrate the operation of each device to perform automated operation and achieve the practical benefit of improving work efficiency.

Claims

1. A fluid control valve, characterized in that, Include: Valve: It has a first chamber and a second chamber communicating along a first axial direction, and a third chamber communicating with the first chamber along a second axial direction. A push part and a first engagement part are provided outside the first chamber. Valve plug: capable of displacement within the first chamber of the valve, thereby enabling the opening and closing of the second and third chambers; Leakage preventer: includes a body and a closure. The body has a support portion inside. One side of the support portion defines a second joint portion, which can be displaced along the first joint portion of the valve. The other side of the support portion defines a relief portion communicating with the second joint portion. The closure portion is assembled to the support portion of the body and has a bearing area and a recognition area. The bearing area can withstand the pushing force of the pushing part of the valve, and the recognition area can be displaced relative to the relief portion to a preset recognition position.

2. The fluid control valve as described in claim 1, characterized in that: The body of the leak preventer has a radially recessed support portion on its inner wall surface, and a second joint portion recessed on the first surface facing the second surface, with a clearance portion communicating with the second joint portion on the second surface facing the first surface.

3. The fluid control valve as described in claim 1, characterized in that: The body of the leak preventer has a limiting structure on the receiving part to limit the closure.

4. The fluid control valve as described in claim 1, characterized in that: The depth of the clearance portion of the leak preventer is smaller than the depth of the second joint portion.

5. The fluid control valve as described in claim 1, characterized in that: One side of the closure defines the bearing area at the location opposite the push portion, and at least one mounting area is provided around the bearing area. The mounting area is fitted to the mounting portion of the body, and the other side of the closure has the identification area opposite the relief portion.

6. The fluid control valve as described in claim 1, characterized in that: The closure has at least one color-coated mark in the identification area.

7. The fluid control valve as described in claim 1, characterized in that: The closure has a raised stepped portion in the identification area, and at least one mark is provided on the outer circumferential surface of the stepped portion.

8. The fluid control valve as described in claim 1, characterized in that: The preset identification position is a position that is flush with or extends beyond the second side of the leak-proof device.

9. A refrigerant device, characterized in that, Include: Refrigerant system: It is provided with at least one refrigerant device, at least one first conveyor and at least one second conveyor, the refrigerant device is capable of supplying refrigerant, and the first conveyor is connected to the refrigerant device to transport the refrigerant; At least one fluid control valve as claimed in claim 1: the third chamber of the valve is connected to the first conveyor, and the second chamber is connected to the second conveyor to convey the refrigerant.

10. A work machine, characterized in that, Include: Machine tool; Feeding device: disposed on the machine and equipped with at least one feeder for accommodating at least one electronic component to be tested; Material receiving device: disposed on the machine and provided with at least one material receiving device for accommodating at least one measured electronic component; Operating device: disposed on the machine tool, and equipped with at least one operating device and at least one temperature controller, the operating device for performing preset operations on the electronic component, and the temperature controller for controlling the temperature of the electronic component; At least one refrigerant device as described in claim 9: its second delivery device is connected to at least one of the thermostats, and the fluid control valve is capable of controlling the second delivery device to supply or stop supplying refrigerant to the thermostat. Transfer device: disposed on the machine tool and equipped with at least one transfer device for transferring the electronic component; Central control unit: Used to control and integrate the operation of various devices to perform automated operations.

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