Sealing butt joint mechanism for vacuum helium detector

Abstract

The sealing butt joint mechanism comprises a test box, the top end of the test box is rotationally connected with a sealing cover, one end of the test box is provided with a ventilation assembly, sliding rails are symmetrically and fixedly installed in the test box, and sliding blocks are slidably connected to the middles of the two sliding rails; a mounting plate is arranged between the two sets of sliding blocks, a positioning seat is fixedly mounted at the top end of the mounting plate, first through grooves and second through grooves are symmetrically formed in the top end of the positioning seat, first sliding blocks are slidably connected into the two sets of first through grooves, and second sliding blocks are slidably connected into the two sets of second through grooves; through cooperation of a rotating motor, a gear and a rack, clamping plates are synchronously close to or far away from each other, battery packs of different sizes can be rapidly adapted, operation is convenient and fast, bidirectional synchronous movement ensures uniform clamping force on the battery packs, battery pack damage caused by uneven stress is avoided, friction force is increased through an anti-skid rubber plate, the battery packs are prevented from sliding in the positioning process, and the positioning precision is improved. And the positioning stability is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of sealed docking, in particular to a sealed docking mechanism for a vacuum helium detector. Background Art

[0002] A vacuum helium detector is a precision instrument that uses helium as a leak-indicating gas to detect the airtightness of sealed containers or systems. It is widely used in aerospace, electronics, refrigeration, vacuum equipment and other fields. In the new energy field, it can detect the sealing of lithium battery casings and hydrogen fuel cell plates to avoid safety hazards caused by electrolyte or hydrogen leakage.

[0003] According to the announcement number CN217765398U, a sealing docking mechanism for a vacuum helium detector is disclosed, which includes a battery shell placement unit, the battery shell placement unit includes a test box, a sealing cover, and a mounting plate, and the top of the test box is provided with a sealing cover; a helium inlet unit, the helium inlet unit includes a ventilation pipe and a sealing head, the ventilation pipe is fixedly connected to the inner wall of the test box, and the side of the ventilation pipe away from the test box is provided with a sealing head; a battery shell small-mouth docking unit, the battery shell small-mouth docking unit includes a slide rail fixed to the inner wall of the test box, a slider is connected to the inner limit sliding of the slide rail, and the test box is provided with an operating mechanism for moving the slider up and down. The slider that can move up and down provided in the utility model cooperates with the L-shaped groove and the bevel groove to make the mounting plate move in an L-shaped trajectory, which facilitates the installation of the battery shell and the sealing docking of the small mouth of the battery shell.

[0004] The above-mentioned device can move the slider up and down in conjunction with the L-shaped groove and the oblique groove to make the mounting plate move in an L-shaped trajectory, making it easier to install the battery shell. However, according to the instructions and the accompanying drawings, the size of the L-shaped plate of the device is fixed and cannot be fixed according to battery packs of different sizes, and its flexibility of use is low. Summary of the Invention

[0005] The purpose of the present invention is to solve the problem that the slider of the above-mentioned device can move up and down and cooperate with the L-shaped groove and the inclined groove to make the mounting plate move in an L-shaped trajectory, so as to facilitate the installation of the battery shell. However, according to the description and the accompanying drawings, the size of the L-shaped plate of the device is fixed and cannot be fixed according to battery packs of different sizes, resulting in low flexibility of use. A sealing docking mechanism for a vacuum helium detector is provided.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sealing docking mechanism for a vacuum helium detector, comprising a test box, a sealing cover rotatably connected to the top of the test box, a ventilation assembly provided at one end of the test box, slide rails symmetrically fixedly installed inside the test box, and two sets of slide rails are slidably connected to the middle of the two sets of slide rails, mounting plates are provided in the middle of the two sets of the slides, and a positioning seat is fixedly installed on the top of the mounting plate, the top of the positioning seat is symmetrically provided with a through slot 1 and a through slot 2, the two sets of the through slot 1 are slidably connected to the inside of the sliding block 1, and the two sets of the through slot 2 are internally provided with the sliding block 1. The sliding connection is provided with a sliding block 2, and the top of the sliding block 1 and the sliding block 2 are both provided with a mounting block. The middle of the two sets of mounting blocks are slidably connected with a sliding plate, and a clamping plate is fixedly installed at one end of the sliding plate. A cavity is opened inside the positioning seat, and a rotating motor is fixedly installed inside the cavity, and a driving gear is fixedly installed on the output end shaft of the top of the rotating motor. The bottom end of the sliding block 2 passes through the cavity and is fixedly installed with an adjusting rack 2. The bottom end of the sliding block 1 passes through the cavity and is fixedly installed with an adjusting rack 1. The adjusting rack 1 and the adjusting rack 2 are respectively meshed with the driving gear.

[0007] As a further solution of the present invention: an anti-slip rubber plate for increasing the clamping friction force is fixedly mounted on one end of the clamping plate.

[0008] As a further solution of the present invention: one end of the sliding block 1 and the sliding block 2 is provided with a sliding groove slidably connected to the through groove 1 and the through groove 2, and the sliding grooves are symmetrically provided at both ends of the sliding block 1 and the sliding block 2.

[0009] As a further solution of the present invention: slots are provided on the tops of the first sliding block and the second sliding block, and the mounting blocks are adapted to the slots.

[0010] As a further solution of the present invention: a card slot is provided at one end of the slot, an empty slot is provided at one end of the mounting block, a wedge-shaped card block is slidably connected inside the empty slot, and the wedge-shaped card block is adapted to the card slot, a return spring is fixedly installed inside the empty slot, and one end of the return spring is fixedly installed with the wedge-shaped card block.

[0011] As a further solution of the present invention: one end of the mounting block is slidably connected to an L-shaped rod, a through slot three is opened inside the mounting block, and the L-shaped rod passes through the through slot three and is fixedly installed with the wedge-shaped clamping block.

[0012] As a further solution of the present invention: sliding rods that slide with two groups of mounting blocks are symmetrically fixed on both ends of the sliding plate, and limiting slots are symmetrically provided on the top of the sliding rods. Four through slots are provided inside the mounting blocks, and the limiting plug-in blocks are slidably connected inside the four through slots, and the limiting plug-in blocks are adapted to the limiting slots.

[0013] As a further solution of the present invention: a U-shaped rod is slidably connected to the top of the mounting block, and the U-shaped rod passes through the through slot four and is fixedly installed with the limit plug block, a return spring two is fixedly installed inside the through slot four, and one end of the return spring two is fixedly installed with the top of the limit plug block.

[0014] As a further solution of the present invention: heat dissipation ports for the rotating motor to dissipate heat are provided at both ends of the positioning seat, and a filter plate is slidably engaged inside the heat dissipation port, and a pull-out slot for a staff member to pull out is provided at one end of the filter plate.

[0015] As a further solution of the present invention: a driving mechanism for driving the slider to move is provided at one end of the test box.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention realizes synchronous approach or separation of the clamping plates by rotating the motor, gear and rack, which can quickly adapt to battery packs of different sizes and is easy to operate. The bidirectional synchronous movement ensures uniform clamping force on the battery pack, avoiding damage to the battery pack due to uneven force. The anti-slip rubber plate increases friction to prevent the battery pack from sliding during the positioning process, ensuring the stability of the positioning.

[0018] The present invention uses an L-shaped rod and a wedge-shaped clamping block structure, which allows for quick unlocking of the mounting block without tools, allowing for removal of old mounting blocks. The device is easy to install and can accommodate sliding plates of different shapes and thicknesses, allowing for flexible adjustment of the clamping structure to meet different battery pack testing requirements, increasing versatility and practicality.

[0019] The present invention can be quickly unlocked by manually pulling the U-shaped rod, and the spacing can be adjusted by sliding the slide rod in the mounting block. It can accurately adapt to battery packs of different sizes. After adjustment, the return spring pushes the limit plug block to automatically lock, which increases adaptability to battery packs of different sizes and enhances positioning diversity. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the internal structure of the test box of the present invention;

[0022] Figure 3 It is a structural schematic diagram of the positioning seat in the present invention;

[0023] Figure 4 It is a schematic cross-sectional structure diagram of the positioning seat in the present invention;

[0024] Figure 5 It is a schematic cross-sectional structural diagram of the mounting block in the present invention;

[0025] Figure 6 This invention Figure 5 Schematic diagram of the locally enlarged structure at point A in the middle.

[0026] Figure: 1, test box; 2, sealing cover; 3, ventilation assembly; 4, slide rail; 5, slider; 6, mounting plate; 7, positioning seat; 8, driving mechanism; 9, through slot 1; 10, through slot 2; 11, sliding block 1; 12, sliding block 2; 13, mounting block; 14, sliding plate; 15, clamping plate; 16, anti-slip rubber sheet; 17, cavity; 18, rotating motor; 19, driving gear; 20, adjustment Rack 2; 21. Adjustment rack 1; 22. Sliding slot; 23. Slot; 24. Card slot; 25. Empty slot 1; 26. Wedge-shaped card block; 27. Return spring 1; 28. Through slot 3; 29. L-shaped rod; 30. Through slot 4; 31. Limiting block; 32. Sliding rod; 33. Limiting slot; 34. Return spring 2; 35. U-shaped rod; 36. Heat dissipation vent; 37. Filter plate; 38. Pull-out slot. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and should not be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected, detachably connected, or connected in one piece; they can be mechanically connected or electrically connected; they can be directly connected, or indirectly connected through an intermediate medium, or they can be internal connections between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following describes an embodiment of the present invention based on its overall structure.

[0029] Reference Figures 1 to 6In an embodiment of the present invention, a sealing docking mechanism for a vacuum helium detector includes a test box 1, a sealing cover 2 is rotatably connected to the top of the test box 1, a ventilation component 3 is provided at one end of the test box 1, slide rails 4 are symmetrically fixedly installed inside the test box 1, and two sets of slide rails 4 are slidably connected to the middle of a slider 5, a mounting plate 6 is provided in the middle of the two sets of sliders 5, and a positioning seat 7 is fixedly installed on the top of the mounting plate 6, and a through slot 1 9 and a through slot 2 10 are symmetrically opened on the top of the positioning seat 7, a sliding block 11 is slidably connected to the inside of the two sets of through slots 1 9, a sliding block 2 12 is slidably connected to the inside of the two sets of through slots 2 10, and the tops of the sliding blocks 11 and 12 are both provided with The mounting block 13 has a sliding plate 14 in sliding connection with the middle part of the two groups of mounting blocks 13, and a clamping plate 15 is fixedly installed at one end of the sliding plate 14. A cavity 17 is opened inside the positioning seat 7, and a rotating motor 18 is fixedly installed inside the cavity 17, and a driving gear 19 is fixedly installed on the output end shaft at the top of the rotating motor 18. The bottom end of the sliding block 2 12 passes through the cavity 17 and is fixedly installed with an adjusting rack 2 20, and the bottom end of the sliding block 1 11 passes through the cavity 17 and is fixedly installed with an adjusting rack 1 21. The adjusting rack 1 21 and the adjusting rack 2 20 are respectively meshed with the driving gear 19, and an anti-slip rubber plate 16 that increases the clamping friction is fixedly installed at one end of the clamping plate 15.

[0030] The above scheme is adopted: the ventilation component 3, the test box 1 and the sealing cover 2 are all prior arts cited in the comparative documents and are not described in detail in this application. The ventilation component 3 includes a cavity and an air pipe, etc. The positioning seat 7 is cast with HT300 cast iron, and two groups of through grooves 9 and through grooves 10 are symmetrically opened on the top. A sliding block 11 made of 45# steel is slidably connected in the through groove 19, and a sliding block 2 12 made of the same material is slidably connected in the through groove 2 10. A mounting block 13 is provided on the top of the sliding block 11 and the sliding block 2 12. A wide sliding groove is opened in the middle of the two groups of mounting blocks 13, and a 45# steel sliding plate 14 is slidably connected. A clamping plate 15 made of Q235 steel plate is fixed to one end of the sliding plate 14 by welding. A cavity 17 is opened inside the positioning seat 7, and the rotating motor 18 inside is loose The MSMD02ZP1U servo motor below has a power of 200W, a rated torque of 0.64N·m, and an encoder resolution of 262144p / rev. The output shaft of the rotating motor 18 is fixedly installed with a driving gear 19 made of 40Cr material through a flat key. The bottom end of the sliding block 2 12 passes through the cavity 17 to fix the adjusting rack 2 20. The bottom end of the sliding block 11 passes through the cavity 17 to fix the adjusting rack 1 21. Both are made of 40Cr and are meshed with the driving gear 19. One end of the clamping plate 15 is glued with a non-slip rubber plate 16 made of nitrile rubber by strong glue, and the surface has diamond-shaped non-slip patterns. During operation, the rotating motor 18 drives the gear 19 to rotate, driving the adjusting rack 1 21 and the adjusting rack 2 20 to achieve synchronous reverse motion. The non-slip rubber plate 16 ensures that the workpiece does not slip.

[0031] Reference Figures 1 to 6 , one end of the sliding block 11 and the sliding block 2 12 are both provided with a sliding groove 22 that is slidably connected to the through groove 1 9 and the through groove 2 10, and the sliding groove 22 is symmetrically opened at both ends of the sliding block 11 and the sliding block 2 12, and a slot 23 is opened at the top of the sliding block 11 and the sliding block 2 12, the mounting block 13 is adapted to the slot 23, and a card slot 24 is opened at one end of the slot 23, and an empty slot 25 is opened at one end of the mounting block 13, and a wedge-shaped card block 26 is slidably connected inside the empty slot 25, and the wedge-shaped card block 26 is adapted to the card slot 24, and a return spring 27 is fixedly installed inside the empty slot 25, and one end of the return spring 27 is fixedly installed with the wedge-shaped card block 26, an L-shaped rod 29 is slidably connected to one end of the mounting block 13, and a through groove 3 28 is opened inside the mounting block 13, and the L-shaped rod 29 passes through the through groove 3 28 and is fixedly installed with the wedge-shaped card block 26;

[0032] The above solution is adopted: two sets of sliding grooves 22 are provided at one end of the sliding block 11 and the sliding block 2 12, and the sliding grooves 22 form a clearance fit with the through grooves 1 9 and the through grooves 2 10. The top of the sliding block 11 and the sliding block 2 12 is provided with a slot 23, and one end of the slot 23 is provided with a rectangular card slot 24. The mounting block 13 is forged with 7075 aluminum alloy, and the bottom is designed as an insert structure that cooperates with the slot 23. The empty slot 1 25 is provided at one end of the mounting block 13, and the internal sliding connection is made of a wedge-shaped card block 26 made of 40Cr material. The bottom of the empty slot 1 25 is connected by an M4 internal hexagonal screw. The reset spring 27 is fixedly installed with a cylindrical head screw, and a through slot 3 28 is provided at one end of the mounting block 13, which is slidably connected to an L-shaped rod 29 made of Q235 material. The L-shaped rod 29 is fixedly connected to the wedge-shaped clamping block 26 by an M3 set screw to realize the manual unlocking function. When the mounting block 13 is inserted into the slot 23, the wedge-shaped clamping block 26 is squeezed and compresses the reset spring 27. When the reset spring 27 reaches the position of the clamping slot 24, the reset spring 27 is reset, and the wedge-shaped clamping block 26 is embedded in the clamping slot 24 to form a mechanical lock. Pressing the L-shaped rod 29 can make the clamping block exit the clamping slot to realize quick disassembly.

[0033] Reference Figures 1 to 6 , the sliding plate 14 is symmetrically fixed with sliding rods 32 at both ends that slide with the two sets of mounting blocks 13, and the top of the sliding rod 32 is symmetrically provided with a limited slot 33, a through slot 4 30 is provided inside the mounting block 13, and the through slot 4 30 is slidably connected to the limited plug 31, and the limited plug 31 is adapted to the limited slot 33, and the top of the mounting block 13 is slidably connected with a U-shaped rod 35, and the U-shaped rod 35 passes through the through slot 4 30 and is fixedly installed with the limited plug 31, and a return spring 2 34 is fixedly installed inside the through slot 4 30, and one end of the return spring 2 34 is fixedly installed with the top of the limited plug 31;

[0034] The above scheme is adopted: sliding rods 32 made of 40Cr material are symmetrically welded at both ends of the sliding plate 14, and limiting slots 33 are symmetrically opened at the top of the sliding rod 32. A through slot four 30 is opened inside the mounting block 13. The limiting plug 31 made of Q235 material forms a clearance fit with the through slot four 30. The bottom end of the limiting plug 31 is designed as an R3 fillet, and a guide groove is opened at the top of the mounting block 13. It is slidably connected to a 304 stainless steel U-shaped rod 35. The reset spring two 34 made of 65Mn material is fixed inside the through slot four 30 by an M3 hexagon socket screw. When working, the U-shaped rod 35 is lifted up to compress the spring, and the limiting plug 31 withdraws from the slot, and the sliding rod 32 can slide. After reaching the target position, the U-shaped rod is released, and the reset spring two 34 drives the limiting plug 31 to embed into the limiting slot 33 to form a rigid lock.

[0035] Reference Figures 1 to 6 , the two ends of the positioning seat 7 are provided with heat dissipation ports 36 for the rotating motor 18 to dissipate heat, and the heat dissipation port 36 is internally slidably connected with a filter plate 37, and one end of the filter plate 37 is provided with a pull-out slot 38 for the staff to pull out;

[0036] The above solution is adopted: heat dissipation ports 36 are symmetrically provided at both ends of the positioning seat 7, and a filter screen plate 37 made of 304 stainless steel is slidably connected inside the heat dissipation port 36 through deep grooves provided on both sides. A pull-out slot 38 is provided at one end of the filter screen plate 37, and the groove is rounded to facilitate the operator to quickly disassemble it using tools. During maintenance, the staff can apply pulling force through the pull-out slot 38 to pull out the screen plate, and reinsert it into the slot after cleaning.

[0037] Reference Figures 1 to 6 , a driving mechanism 8 for driving the slider 5 to move is provided at one end of the test box 1;

[0038] The above solution is adopted: the driving mechanism 8 is the existing technology cited in the comparative document and is not described in detail in this application. The driving mechanism 8 includes a motor, a rotating column, a connecting rod and a hinged rod, etc.

[0039] The working principle of the present invention is as follows: when positioning the battery pack, the staff starts the rotating motor 18, the rotating motor 18 drives the gear 19 to rotate, the gear 19 is engaged with the adjusting rack 1 21 and the adjusting rack 2 20, and since the two are respectively fixed at the bottom of the sliding block 11 and the sliding block 2 12, the rotation of the gear 19 causes the sliding block 11 and the sliding block 2 12 to move toward or away from each other in the through slot 1 9 and the through slot 2 10, and the sliding block 11 and the sliding block 2 12 are connected to the sliding plate 1 through the mounting block 13. 4 are connected, so their movement is synchronously transmitted to the clamping plate 15, so that the two clamping plates 15 can move closer or farther away at the same time, realizing the clamping and positioning of battery packs of different sizes. The anti-slip rubber plate 16 on the clamping plate 15 increases the friction with the surface of the battery pack, ensuring that the battery pack will not slide during the positioning process. Push the L-shaped rod 29 to slide in the through groove 3 28, driving the wedge-shaped card block 26 to withdraw from the card slot 24, compressing the reset spring 1 27, releasing the installation block 13 and the sliding block 11 and the sliding block The locking mechanism 12 is locked, the mounting block 13 is pulled out upwards to separate it from the slot 23, and the disassembly of the old clamping plate 15 is completed. The mounting block 13 corresponding to the new clamping plate 15 is inserted into the slot 23. The wedge-shaped card block 26 is snapped into the card slot 24 under the action of the return spring 1 27 to achieve automatic locking. It can be adjusted according to the sliding plate 14 of different shapes and thicknesses to increase the flexibility of use. When the U-shaped rod 35 is pulled upwards, the limiting plug 31 is driven to withdraw from the limiting slot 33, and the return spring 2 34 is compressed to release the locking mechanism 12. In addition to locking the slide rod 32 and the mounting block 13, the sliding plate 14 slides in the mounting block 13 through the slide rod 32. The lateral spacing between the two clamping plates 15 can be adjusted as needed to accommodate battery packs of different widths. After adjustment, the U-shaped rod 35 is released, and the limiting plug 31 is inserted into the limiting slot 33 at the corresponding position under the action of the reset spring 2 34 to lock the current spacing. By adjusting the spacing between the two clamping plates 15, the functionality of positioning battery packs of different sizes can be increased, thereby increasing the flexibility of use.

[0040] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A sealing docking mechanism for a vacuum helium detector, comprising a test box (1), a sealing cover (2) rotatably connected to the top of the test box (1), a ventilation assembly (3) provided at one end of the test box (1), slide rails (4) symmetrically fixedly installed inside the test box (1), and sliders (5) slidably connected in the middle of two groups of slide rails (4), a mounting plate (6) provided in the middle of the two groups of sliders (5), and a positioning seat (7) fixedly installed on the top of the mounting plate (6), characterized in that: The top of the positioning seat (7) is symmetrically provided with a through slot 1 (9) and a through slot 2 (10), two groups of the through slot 1 (9) are internally slidably connected with a sliding block 1 (11), and two groups of the through slot 2 (10) are internally slidably connected with a sliding block 2 (12), and the tops of the sliding block 1 (11) and the sliding block 2 (12) are both provided with a mounting block (13), and the middle of the two groups of mounting blocks (13) are slidably connected with a sliding plate (14), and a clamping plate (15) is fixedly installed at one end of the sliding plate (14). The positioning seat (7) A cavity (17) is provided inside the cavity (17), a rotating motor (18) is fixedly installed inside the cavity (17), and a driving gear (19) is fixedly installed on the output end shaft of the top of the rotating motor (18), the bottom end of the second sliding block (12) passes through the cavity (17) and is fixedly installed with a second adjusting rack (20), the bottom end of the first sliding block (11) passes through the cavity (17) and is fixedly installed with a first adjusting rack (21), the first adjusting rack (21) and the second adjusting rack (20) are respectively engaged with the driving gear (19).

2. The sealing docking mechanism for a vacuum helium detector according to claim 1, characterized in that: An anti-slip rubber plate (16) for increasing the clamping friction force is fixedly mounted on one end of the clamping plate (15).

3. The sealing docking mechanism for a vacuum helium detector according to claim 2, characterized in that: The sliding block 1 (11) and the sliding block 2 (12) are both provided with a sliding groove (22) at one end thereof, which is slidably connected to the through groove 1 (9) and the through groove 2 (10), and the sliding groove (22) is symmetrically provided at both ends of the sliding block 1 (11) and the sliding block 2 (12).

4. The sealing docking mechanism for a vacuum helium detector according to claim 3, characterized in that: The tops of the sliding block 1 (11) and the sliding block 2 (12) are both provided with slots (23), and the mounting block (13) is adapted to the slots (23).

5. The sealing docking mechanism for a vacuum helium detector according to claim 4, characterized in that: A card slot (24) is provided at one end of the slot (23), and an empty slot (25) is provided at one end of the mounting block (13). A wedge-shaped card block (26) is slidably connected inside the empty slot (25), and the wedge-shaped card block (26) is adapted to the card slot (24). A return spring (27) is fixedly installed inside the empty slot (25), and one end of the return spring (27) is fixedly installed with the wedge-shaped card block (26).

6. The sealing docking mechanism for a vacuum helium detector according to claim 5, characterized in that: One end of the mounting block (13) is slidably connected to an L-shaped rod (29), a through slot three (28) is provided inside the mounting block (13), and the L-shaped rod (29) passes through the through slot three (28) and is fixedly mounted with the wedge-shaped clamping block (26).

7. The sealing docking mechanism for a vacuum helium detector according to claim 6, characterized in that: The two ends of the sliding plate (14) are symmetrically fixed with sliding rods (32) that slide with the two groups of mounting blocks (13). The top of the sliding rod (32) is symmetrically provided with a limiting slot (33). The mounting block (13) is provided with a through slot four (30) inside. The through slot four (30) is slidably connected to the limiting plug block (31), and the limiting plug block (31) is adapted to the limiting slot (33).

8. The sealing docking mechanism for a vacuum helium detector according to claim 7, characterized in that: The top of the mounting block (13) is slidably connected to a U-shaped rod (35), and the U-shaped rod (35) passes through the through slot four (30) and is fixedly mounted on the limiting plug block (31). A return spring two (34) is fixedly mounted inside the through slot four (30), and one end of the return spring two (34) is fixedly mounted on the top of the limiting plug block (31).

9. The sealing docking mechanism for a vacuum helium detector according to claim 8, characterized in that: The two ends of the positioning seat (7) are provided with heat dissipation openings (36) for dissipating heat from the rotating motor (18), and a filter screen (37) is slidably engaged inside the heat dissipation opening (36). One end of the filter screen (37) is provided with a pull-out slot (38) for a worker to pull out.

10. The sealing docking mechanism for a vacuum helium detector according to claim 9, characterized in that: One end of the test box (1) is provided with a driving mechanism (8) for driving the slider (5) to move.

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