Air tightness testing device for rectangular glass sintered product

Abstract

The invention belongs to the technical field of air tightness testing, and mainly relates to a rectangular glass sintered product air tightness testing device which comprises a pressing block, a supporting table and a jacking piece used for jacking the pressing block. The bottom surface of the pressing block is provided with a first avoiding groove for the first pin to extend into, the first avoiding groove is communicated with the outside and sprays leakage indicating gas towards the pressing block, so that the leakage indicating gas can enter the first avoiding groove to be in contact with the rectangular glass sintered product; the top surface of the supporting table is provided with a second avoiding groove into which the second pin extends; the supporting table is provided with a flowing channel, and the flowing channel is used for being connected with detection equipment used for detecting whether leakage indicating gas exists in the flowing channel or not. After the rectangular glass sintered product is fixed, the detection equipment can be used for detecting whether the leakage indicating gas exists in the flowing channel or not, so that whether the leakage indicating gas can pass through the rectangular glass sintered product or not is judged, and the air tightness of the rectangular glass sintered product is judged according to a detection result.

Description

Technical Field

[0001] The invention belongs to the technical field of air tightness testing, and mainly relates to an air tightness testing device for a rectangular glass sintered product. Background Art

[0002] As electronic equipment in aerospace systems continues to develop towards lightweight and miniaturization, microwave devices are also constantly developing towards modularization, lightweight miniaturization, and high integration. Rectangular glass sintered products are mainly used for the transmission of microwave signals, power signals, and control signals between modules and modules, and between modules and components with airtight requirements, making them one of the most critical devices in sealed components. Rectangular glass sintered products use glass with low dielectric constant and low dielectric loss as insulating medium and supporting material. The inner and outer conductors are made of Kovar alloy material, sintered at high temperature, and gold-plated on the surface. The inner conductor has a variety of termination methods such as gold wire bonding, welding, and plug-in. Rectangular glass sintered products have the advantages of small structure, light weight, airtightness, and high reliability. In recent years, they have been widely used in the electronics manufacturing industry.

[0003] like Figure 1-Figure 3 As shown, the microwave device (rectangular glass sintered product 16) includes a mounting block 3 and a plurality of first pins 1 disposed on the upper side of the mounting block 3 and a plurality of second pins 2 disposed on the lower side of the mounting block 3. The corresponding first pins 1 and second pins 2 are connected together to form an inner conductor 30. The mounting block 3 includes an outer conductor 31 and a glass block 32 embedded in the outer conductor 31. The inner conductor 30 penetrates the glass block 32 to be divided into the first pin 1 and the second pin 2. The inner conductor 30 is isolated from the outer conductor 31 by the glass block 32. The microwave device has always been tested for its airtightness by welding test (destructive). This method cannot meet the high quality requirements of customers for products, and there is no device on the market that can achieve the test function. Summary of the invention

[0004] The invention provides a rectangular glass sintered product airtightness testing device to solve the problem that the rectangular glass sintered product lacks an airtightness testing device in the prior art.

[0005] To solve the above problems, the present invention adopts the following technical solutions: A rectangular glass sintered product air tightness testing device comprises a pressing block, a supporting platform and a pressing piece, wherein the pressing piece is used to press the pressing block downward, and the pressing block is used to press the rectangular glass sintered product onto the supporting platform to fix the rectangular glass sintered product; The bottom surface of the pressing block is provided with a first avoidance groove for the first pin to extend into, and the bottom surface of the pressing block is used to press the upper side surface of the mounting block of the rectangular glass sintered product. The pressing block is provided with a vent connected to the first avoidance groove, and a leak-indicating gas is sprayed toward the pressing block, so that the leak-indicating gas enters the first avoidance groove through the vent and contacts the rectangular glass sintered product. The top surface of the support platform is provided with a second avoidance groove for the second pin to extend into, and the top surface of the support platform is used to seal and press fit with the lower side surface of the mounting block so that the lower side surface of the mounting block seals the second avoidance groove; The support platform is provided with a flow channel connected with the second avoidance groove, the flow channel is used to connect the detection equipment, and the detection equipment is used to detect whether there is leakage gas in the flow channel.

[0006] The invention has the following beneficial effects: the rectangular glass sintered product to be tested is fixed on the support table by a pressing block, and is connected to the testing equipment through a flow channel; when the leak-indicating gas is sprayed toward the rectangular glass sintered product, the testing equipment can detect whether there is the leak-indicating gas in the flow channel, thereby judging whether the leak-indicating gas can pass through the rectangular glass sintered product, and judging the airtightness of the rectangular glass sintered product according to the test result.

[0007] Furthermore, the support platform includes a bracket and a mounting mold detachably assembled on the bracket, the second avoidance groove is located on the top surface of the mounting mold, the flow channel includes a first channel and a second channel connected to each other, the first channel is located on the mounting mold, the second channel is located on the bracket, the first channel is connected to the second avoidance groove, and the second channel is connected to the detection device.

[0008] The invention has the following beneficial effects: the mounting mold is detachable, so that the mounting mold of corresponding specifications can be replaced as needed to adapt to the rectangular glass sintered products of corresponding specifications; at the same time, if the mounting mold is damaged, it can also be easily replaced.

[0009] Furthermore, the mounting mold includes a connecting piece installed on the bracket and a base arranged on the connecting piece, the second avoidance groove is arranged on the base, a first sealing ring is arranged around the second avoidance groove, and the lower side surface of the mounting block presses the first sealing ring to seal the second avoidance groove.

[0010] The invention has the following beneficial effects: the first sealing ring is elastic, and when the lower side surface of the mounting block presses on the first sealing ring, the second avoidance groove can be sealed.

[0011] Furthermore, a guide sleeve is sleeved on the base, and a guide hole is provided on the guide sleeve for clearance fit with the mounting block; The guide sleeve is provided with a first anti-rotation surface, and the base is provided with a second anti-rotation surface that is anti-rotationally engaged with the first anti-rotation surface, so that the guide sleeve and the base are circumferentially fixed.

[0012] The invention has the following beneficial effects: the guide sleeve is provided with a guide hole which is in clearance with the mounting block, and the guide sleeve is circumferentially rotation-proof, so during detection, the guide sleeve can prevent the rectangular glass sintered product from rotating.

[0013] Furthermore, a second sealing ring is provided between the base and the connecting member.

[0014] The invention has the following beneficial effects: preventing air leakage between the base and the connecting piece, which would affect the accuracy of detection by the detection equipment.

[0015] Furthermore, a third sealing ring is provided between the connecting member and the bracket.

[0016] The invention has the following beneficial effects: preventing air leakage between the connecting piece and the bracket, which would affect the accuracy of detection by the detection equipment.

[0017] Furthermore, the bracket includes a connecting seat, a plurality of pillars arranged on the connecting seat, and a connecting block arranged between the plurality of pillars. The second channel is arranged on the connecting seat, and the detection device is used to connect with the connecting seat to communicate with the second channel.

[0018] Furthermore, the pressing member is a screw rod, which is threadedly connected to the connecting block, and the screw rod rotates to press the pressing block.

[0019] Furthermore, a transverse hand lever is provided at the upper end of the screw rod, and the hand lever rotates circumferentially to rotate the screw rod.

[0020] The invention has the following beneficial effects: the transverse hand lever can facilitate the rotation of the screw rod and press the pressing block.

[0021] Furthermore, there are a plurality of first avoidance grooves, and the plurality of first avoidance grooves are arranged at equal intervals on the pressing block, and each first avoidance groove is used to place a corresponding first pin. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein: Figure 1 It is a schematic structural diagram of a rectangular glass sintered product from the first perspective; Figure 2 It is a schematic structural diagram of a rectangular glass sintered product from a second viewing angle; Figure 3 Schematic diagram of the structure of another rectangular glass sintered product; Figure 4 It is a schematic diagram of the structure of the present invention after omitting the briquetting; Figure 5 This is a schematic diagram of the structure of the present invention when fixing a rectangular glass sintered product; Figure 6 It is a cross-sectional view of the present invention when fixing a rectangular glass sintered product; Figure 7 It is a structural schematic diagram of the pressing block from the first perspective; Figure 8 It is a structural schematic diagram of the pressing block from the second viewing angle; Fig. 9 It is a schematic diagram of the structure when the rectangular glass sintered product is fixed to the mounting mold by the pressing block; Fig.10 A cross-sectional view of a rectangular glass sintered product being fixed to a mounting mold by a pressing block; Fig.11 for Fig.10 The enlarged view of point A in the middle; Fig.12 This is a structural diagram of the first-person perspective of the mold installation; Fig.13 It is a structural schematic diagram of the second perspective of the installation mold; Fig.14 Schematic diagram of the structure of the guide sleeve; Fig.15 This is a schematic diagram of the structure of the mold after the guide sleeve is omitted.

[0023] Description of reference numerals: 1. First pin; 2. Second pin; 3. Mounting block; 4. Upper side; 5. Lower side; 6. Bracket; 7. Mounting mold; 8. Screw; 9. Hand lever; 10. Connecting seat; 11. Pillar; 12. Connecting block; 13. Connecting piece; 14. Guide sleeve; 15. Pressing block; 16. Rectangular glass sintered product; 17. First avoidance groove; 18. Second avoidance groove; 19. Flow channel; 20. First channel; 21. Second channel; 22. Base; 23. First sealing ring; 24. Second sealing ring; 25. Third sealing ring; 26. First anti-rotation surface; 27. Second anti-rotation surface; 28. Guide hole; 29. ​​Connecting protrusion; 30. Inner conductor; 31. Outer conductor; 32. Glass block. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0025] Various non-limiting embodiments of the present invention are described in detail below. Any number of elements in the accompanying drawings is for illustration and not for limitation, and any naming is only for distinction and does not have any limiting meaning. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0026] Figure 1 and Figure 2 It is a schematic diagram of the structure of a microwave device (rectangular glass sintered product 16), which is an MC type glass insulator product produced by Xi'an Elite Electronic Industry Co., Ltd. Figure 3 is a schematic diagram of the structure of another microwave device (rectangular glass sintered product 16), which is a type M or type K glass insulator product produced by Xi'an Elite Electronics Industry Co., Ltd. The device described in this embodiment can test Figure 1-Figure 3 The rectangular glass sintered product 16 shown in the figure is airtight. The rectangular glass sintered product 16 comprises a mounting block 3 and a plurality of first pins 1 provided on the upper side 4 of the mounting block 3 and a plurality of second pins 2 provided on the lower side 5 of the mounting block 3, wherein the corresponding first pins 1 and second pins 2 are connected together to form an inner conductor 30, the mounting block 3 comprises an outer conductor 31 and a glass block 32 embedded in the outer conductor 31, the inner conductor 30 penetrates the glass block 32 to be divided into the first pin 1 and the second pin 2, and the inner conductor 30 is isolated from the outer conductor 31 by the glass block 32. This embodiment is to detect whether there is air leakage between the inner conductor 30 and the glass block 32 and between the glass block 32 and the outer conductor 31.

[0027] This embodiment uses Figure 1 and Figure 2 The microwave device shown is used as an example for introduction.

[0028] like Figure 4-Figure 6 As shown, a rectangular glass sintered product air tightness test device includes a pressing block 15, a support platform, and a pressing piece arranged on the support platform. The pressing piece is used to press the pressing block 15 to apply pressure to the pressing block 15, and the pressing block 15 is used to press the rectangular glass sintered product 16 onto the support platform to fix the rectangular glass sintered product 16 on the support platform. The support platform is used to connect a detection device, and the detection device is used to detect the air tightness of the rectangular glass sintered product 16.

[0029] like Figure 6-Figure 9 As shown, the bottom surface of the pressing block 15 is provided with a first avoidance groove 17 for the first pin 1 to extend into, and the first avoidance groove 17 runs through the bottom surface and the top surface of the pressing block 15. The first avoidance groove 17 is used for the first pin 1 to extend into, so as to prevent the pressing block 15 from damaging the first pin 1 of the rectangular glass sintered product 16. The bottom surface of the pressing block 15 is used to press the upper side surface 4 of the mounting block 3, so that it is convenient for the pressing block 15 to press the rectangular glass sintered product 16. The pressing block 15 is provided with a vent connected to the first avoidance groove 17. When the bottom surface of the pressing block 15 presses the upper side surface 4 of the mounting block 3, the mounting block 3 will not block the first avoidance groove 17, and the first avoidance groove 17 will be connected to the outside. In this embodiment, the vent is integrated with the first avoidance groove 17. The staff can hold a spray bottle and spray the leak-indicating gas toward the pressing block 15, so that the leak-indicating gas enters the first avoidance groove 17 through the vent and contacts the rectangular glass sintered product 16.

[0030] In this embodiment, there are multiple first avoidance grooves 17, and these first avoidance grooves 17 are evenly spaced and distributed on the pressing block 15, and the number of the first avoidance grooves 17 is consistent with the number of the first pins 1. When the pressing block 15 presses the mounting block 3, only one first pin 1 is placed in each first avoidance groove 17.

[0031] In other embodiments, there is only one first avoidance groove 17 on the pressing block 15 , and all of the plurality of first pins 1 are located in the first avoidance groove 17 .

[0032] In other embodiments, the vent is not integrated with the first avoidance groove 17, and the first avoidance groove 17 does not penetrate the bottom surface and the top surface of the pressing block 15, but is connected to each first avoidance groove 17 through the vent, wherein the vent may be one or more. In this way, even when the bottom surface of the pressing block 15 presses against the upper side surface 4 of the mounting block 3, the mounting block 3 blocks the first avoidance groove 17, and the staff holds a spray bottle and sprays the leak-indicating gas toward the pressing block 15, the vent can still enter the first avoidance groove 17 through the vent and contact the mounting block 3.

[0033] like Figure 6 , Fig. 9 , Fig.10 , Fig.11 As shown, a second avoidance groove 18 is provided on the top surface of the support table, and the second avoidance groove 18 is used for the second pin 2 to extend into to prevent the pressing block 15 from damaging the rectangular glass sintered product 16. The top surface of the support table is used to seal and press fit with the lower side surface 5 of the mounting block 3, so that the lower side surface 5 of the mounting block 3 can seal the second avoidance groove 18, that is, the lower side surface 5 of the mounting block 3 can completely cover the opening of the second avoidance groove 18, and the mounting block 3 and the second avoidance groove 18 are sealed.

[0034] The support platform is provided with a flow channel 19 connected to the second avoidance groove 18, and the flow channel 19 is used to connect a detection device, and the detection device is used to detect whether there is leakage gas in the flow channel 19. When the detection device is connected to the flow channel 19, the flow channel 19 is sealed.

[0035] When the detection device detects leakage gas in the flow channel 19, it means that the airtightness of the rectangular glass sintered product 16 is not good; when the detection device cannot detect leakage gas in the flow channel 19, it means that the airtightness of the rectangular glass sintered product 16 is good.

[0036] The leak-indicating gas in this embodiment is helium, and the detection device is a helium leak detector.

[0037] In other embodiments, the leak-indicating gas is hydrogen, and the detection device is a helium leak detector, which can detect hydrogen.

[0038] The rectangular glass sintered product 16 to be tested is fixed on a support table by a pressing block 15 and connected to a detection device through a flow channel 19. When leakage-indicating gas is sprayed toward the rectangular glass sintered product 16, the detection device can detect whether there is leakage-indicating gas in the flow channel 19, thereby determining whether the leakage-indicating gas can pass through the rectangular glass sintered product 16, and determining the airtightness of the rectangular glass sintered product 16 based on the detection result.

[0039] The support platform includes a bracket 6 and a mounting mold 7 detachably mounted on the bracket 6. When detecting the leaking gas, the bracket 6 and the mounting mold 7 are sealed. The second avoidance groove 18 is located on the top surface of the mounting mold 7. The flow channel 19 includes a first channel 20 and a second channel 21 that are connected to each other. The first channel 20 is located on the mounting mold 7, and the second channel 21 is located on the bracket 6. The first channel 20 is connected to the second avoidance groove 18, and the second channel 21 is connected to the detection device.

[0040] The mounting mold 7 is detachable, so that the mounting mold 7 of corresponding specifications can be replaced as needed to adapt to the rectangular glass sintered product 16 of corresponding specifications; at the same time, if the mounting mold 7 is damaged, it can also be easily replaced.

[0041] like Figure 6 , Fig. 9 , Fig.10 , Fig.11 As shown, the mounting mold 7 includes a connector 13 mounted on the bracket 6 and a base 22 disposed on the connector 13. The connector 13 has a groove, and the base 22 is placed in the groove of the connector 13. The first channel 20 runs through the connector 13 and the base 22. The second avoidance groove 18 is disposed on the base 22. A first sealing ring 23 is disposed around the second avoidance groove 18. The base 22 has a groove, and the first sealing ring 23 is placed in the groove of the base 22. The lower side 5 of the mounting block 3 presses the first sealing ring 23 to seal the second avoidance groove 18. The first sealing ring 23 is elastic. When the lower side 5 of the mounting block 3 presses on the first sealing ring 23, the second avoidance groove 18 can be sealed to prevent the leakage gas from passing between the mounting block 3 and the first sealing ring 23, thereby improving the accuracy of the detection result of the detection equipment.

[0042] The base 22 is sleeved with a guide sleeve 14, which presses against the first sealing ring 23 to keep the first sealing ring 23 in the groove of the base 22. The guide sleeve 14 is provided with a guide hole 28 for clearance fit with the mounting block 3, and the guide hole 28 can just fit the mounting block 3, and the side wall of the guide hole 28 is partially or completely fitted with the mounting block 3. At the same time, when the mounting block 3 is placed in the guide hole 28, the mounting block 3 can extend out of the guide hole 28, that is, the height of the mounting block 3 is greater than the depth of the guide hole 28.

[0043] like Figure 12-Figure 15 As shown, the guide sleeve 14 is provided with a first anti-rotation surface 26, and the base 22 is provided with a second anti-rotation surface 27 that is anti-rotationally engaged with the first anti-rotation surface 26, so that the guide sleeve 14 is circumferentially fixed to the base 22. The first anti-rotation surface 26 and the second anti-rotation surface 27 have a positioning function, so that the guide sleeve 14 can be accurately sleeved on the base 22, and also have an anti-rotation function to prevent the guide sleeve 14 from rotating on the base 22, thereby ensuring the stability of the installation of the rectangular glass sintered product 16 during testing.

[0044] like Fig.10 As shown, a second sealing ring 24 is provided between the base 22 and the connecting member 13, and the second sealing ring 24 is located in the groove of the connecting member 13. The second sealing ring 24 prevents air leakage between the base 22 and the connecting member 13, which affects the accuracy of detection by the detection equipment.

[0045] like Fig.10 As shown, a third sealing ring 25 is provided between the connecting member 13 and the connecting seat 10. The third sealing ring 25 prevents air leakage between the connecting member 13 and the connecting seat 10, which affects the accuracy of detection by the detection equipment.

[0046] like Figure 4 , Figure 5 As shown, the bracket 6 in this embodiment includes a connecting seat 10, two pillars 11 arranged on the connecting seat 10, and a connecting block 12 arranged between the top ends of the two pillars 11. The second channel 21 is arranged on the connecting seat 10, and the detection equipment is used to connect with the connecting seat 10 to connect the second channel 21.

[0047] In other embodiments, the number of the pillars 11 is more than three, and the actual number of the pillars 11 can be determined according to actual needs.

[0048] The connection base 10 has a connection protrusion 29 , and the connection member 13 is sleeved on the connection protrusion 29 to achieve installation and positioning of the connection member 13 on the connection base 10 . The second channel 21 passes through the connection protrusion 29 .

[0049] The pressing member is a screw rod 8 , which penetrates the connecting block 12 through a threaded connection. The screw rod 8 rotates to press the pressing block 15 , so that the pressing block 15 presses the rectangular glass sintered product 16 .

[0050] In other embodiments, the pressing member is a cylinder, a hydraulic cylinder, or an electric push rod. The pressing member is an additional component and is not connected to the bracket 6.

[0051] like Figure 4-Figure 6 As shown, a transverse hand lever 9 is provided at the upper end of the screw rod 8, and the staff rotates the hand lever 9 circumferentially to rotate the screw rod 8. The transverse hand lever 9 can facilitate the rotation of the screw rod 8 and facilitate the pressure on the pressing block 15.

[0052] In other embodiments, the upper end of the screw rod 8 is connected to a servo motor, and the servo motor is operated to drive the screw rod 8 to rotate, thereby achieving the pressing of the screw rod 8 on the pressing block 15.

[0053] The pressing block 15 has a top pressing surface, and the screw 8 is used to abut against the top pressing surface so that the pressing block 15 fixes the rectangular glass sintered product 16 on the base 22 .

[0054] The working process of the present invention is as follows: A suitable mounting mold 7 is installed on the connecting protrusion 29 of the connecting seat 10, and then the rectangular glass sintered product 16 is embedded in the guide hole 28. At this time, the second pin 2 of the rectangular glass sintered product 16 is just located in the second avoidance groove 18, and the lower side surface 5 of the mounting block 3 is in contact with the first sealing ring 23.

[0055] The pressing block 15 is installed on the rectangular glass sintered product 16 so that the first pin 1 extends into the first avoidance groove 17, and the bottom surface of the pressing block 15 is in contact with the upper side surface 4 of the mounting block 3. Then, the screw rod 8 is rotated to press the pressing block 15. The pressing block 15 fixes the rectangular glass sintered product 16 on the base 22. At this time, the screw rod 8 is no longer rotated to keep this pressing state unchanged. At this time, the mounting block 3 and the base 22 are sealed by the first sealing ring 23, the base 22 and the connecting member 13 are sealed by the second sealing ring 24, and the connecting member 13 and the connecting seat 10 are sealed by the third sealing ring 25.

[0056] The connection base 10 is connected to the detection device so that the second channel 21 is connected to the detection device, and then the detection can be performed according to the detection process.

Claims

1. A rectangular glass sintered product airtightness testing device, characterized in that: It includes a pressing block, a supporting platform and a pressing piece, wherein the pressing piece is used to press the pressing block downward, and the pressing block is used to press the rectangular glass sintered product onto the supporting platform to fix the rectangular glass sintered product; The bottom surface of the pressing block is provided with a first avoidance groove for the first pin to extend into, and the bottom surface of the pressing block is used to press the upper side surface of the mounting block of the rectangular glass sintered product. The pressing block is provided with a vent connected to the first avoidance groove, and a leak-indicating gas is sprayed toward the pressing block, so that the leak-indicating gas enters the first avoidance groove through the vent and contacts the rectangular glass sintered product. The top surface of the support platform is provided with a second avoidance groove for the second pin to extend into, and the top surface of the support platform is used to seal and press fit with the lower side surface of the mounting block so that the lower side surface of the mounting block seals the second avoidance groove; The support platform is provided with a flow channel connected with the second avoidance groove, the flow channel is used to connect the detection equipment, and the detection equipment is used to detect whether there is leakage gas in the flow channel.

2. The rectangular glass sintered product airtightness testing device according to claim 1, characterized in that: The support platform includes a bracket and a mounting mold that can be detachably assembled on the bracket. The second avoidance groove is located on the top surface of the mounting mold. The flow channel includes a first channel and a second channel that are interconnected. The first channel is located on the mounting mold, and the second channel is located on the bracket. The first channel is connected to the second avoidance groove, and the second channel is connected to the detection device.

3. The rectangular glass sintered product airtightness testing device according to claim 2, characterized in that: The mounting mold includes a connecting piece installed on the bracket and a base arranged on the connecting piece, the second avoidance groove is arranged on the base, a first sealing ring is arranged around the second avoidance groove, and the lower side surface of the mounting block presses the first sealing ring to seal the second avoidance groove.

4. The rectangular glass sintered product airtightness testing device according to claim 3, characterized in that: The base is sleeved with a guide sleeve, and the guide sleeve is provided with a guide hole for clearance fit with the mounting block; The guide sleeve is provided with a first anti-rotation surface, and the base is provided with a second anti-rotation surface that is anti-rotationally engaged with the first anti-rotation surface, so that the guide sleeve and the base are circumferentially fixed.

5. The rectangular glass sintered product airtightness testing device according to claim 4, characterized in that: A second sealing ring is provided between the base and the connecting piece.

6. The rectangular glass sintered product airtightness testing device according to claim 5, characterized in that: A third sealing ring is provided between the connecting piece and the bracket.

7. The rectangular glass sintered product airtightness testing device according to claim 6, characterized in that: The bracket includes a connecting seat, a plurality of pillars arranged on the connecting seat, and a connecting block arranged between the plurality of pillars. The second channel is arranged on the connecting seat, and the detection device is used to connect with the connecting seat to communicate with the second channel.

8. The rectangular glass sintered product airtightness testing device according to claim 7, characterized in that: The pressing piece is a screw rod, which is threadedly connected to the connecting block, and the screw rod rotates to press the pressing block.

9. The rectangular glass sintered product airtightness testing device according to claim 8, characterized in that: The upper end of the screw rod is provided with a transverse hand lever, and the hand lever rotates circumferentially to rotate the screw rod.

10. A rectangular glass sintered product airtightness testing device according to any one of claims 1 to 9, characterized in that: There are a plurality of the first avoidance grooves, which are arranged at equal intervals on the pressing block, and each first avoidance groove is used to place a corresponding first pin.

Images