Airtight plug tool

Abstract

The airtight plug tool comprises a shell, a sealing assembly, a connector and a driving assembly, the shell comprises a connecting sleeve, and a receding cavity and a mounting opening communicated with the receding cavity are formed in the connecting sleeve. The sealing assembly comprises a sealing cover, the sealing cover and the connecting sleeve are in sliding fit in the axis direction of the receding cavity, a detection chamber is formed in the direction, facing the mounting opening, of the sealing cover, and the sealing cover is used for abutting against the anti-explosion valve to seal the detection chamber. The joint is connected with the sealing cover, is communicated with the detection chamber, and is used for being externally connected with air tightness detection equipment. The driving assembly comprises a suction cup, the suction cup is slidably connected with the sealing cover and used for adsorbing the anti-explosion valve, and the driving assembly is used for driving the sealing cover to abut against the anti-explosion valve. The airtight plug tool provided by the utility model has the technical effect of improving the tedious operation of airtight detection.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to an airtight plugging tool. Background Art

[0002] In the current field of airtightness testing, with the rapid development of industrial automation and precision manufacturing technologies, the requirements for airtightness in sealed structures such as enclosures are becoming increasingly stringent. Existing airtightness testing methods typically use a separate air pipe and plug for testing. This method involves installing a sealing cap over the waterproof vent and securing it with screws, creating a sealed space. Within this enclosed space, a hole is drilled in the sealing cap and the air pipe inserted. Sealant is then applied around the hole to aid in filling the space and prevent air leaks from the air pipe.

[0003] While the above method can achieve a certain degree of airtightness testing for a box, its operation has several drawbacks. First, the steps of connecting the air pipe and applying sealant make the airtightness test complex and tedious, increasing the workload of the operator. Second, because the quality and uniformity of the applied sealant directly affect the sealing effect, it requires high operator skills and can easily lead to unstable test results. Utility Model Content

[0004] One purpose of the utility model is to provide an airtight plugging tool, which aims to solve the technical problem of complicated airtightness detection operation.

[0005] To achieve the above-mentioned object, the present invention provides a solution: an airtight plug fixture, characterized in that it comprises: a shell, the shell comprises a connecting sleeve, a clearance cavity and a mounting port communicating with the clearance cavity are formed inside the connecting sleeve;

[0006] The sealing assembly includes a sealing cover, the sealing cover and the connecting sleeve are slidably matched along the axial direction of the clearance cavity, the sealing cover forms a detection chamber in the direction toward the installation port, and the sealing cover is used to abut against the explosion-proof valve to seal the detection chamber;

[0007] The connector is connected to the sealing cover, the connector is connected to the detection chamber, and the connector is used to connect to an external air tightness detection device;

[0008] The driving component includes a suction cup, which is slidably connected to the sealing cover. The suction cup is used to adsorb the explosion-proof valve, and the driving component is used to drive the sealing cover to abut against the explosion-proof valve.

[0009] Optionally, the driving assembly includes a connecting rod and a first elastic member, the connecting rod is passed through the sealing cover and the connecting sleeve and is connected to the suction cup, the suction cup slides along the axial direction of the connecting sleeve through the connecting rod and the connecting sleeve, the first elastic member is assembled in the detection chamber, one end of the first elastic member is connected to the connecting rod, and the other end is connected to the sealing cover.

[0010] Optionally, the driving assembly includes an abutment portion, which is connected to one end of the connecting rod close to the suction cup. The first elastic member is sleeved on the connecting rod, one end of the first elastic member is connected to the abutment portion, and the other end is connected to the sealing cover.

[0011] Optionally, the sealing cover is provided with a first guide groove, and the first elastic member is partially disposed in the first guide groove.

[0012] Optionally, the driving assembly includes a second elastic member, the second elastic member is assembled in the give way cavity, the second elastic member is sleeved on the connecting rod, one end of the second elastic member is connected to the sealing cover, and the other end is connected to the connecting sleeve.

[0013] Optionally, the connecting sleeve is provided with a second guide groove, and the second elastic member is partially disposed in the second guide groove.

[0014] Optionally, the suction cup is provided with a connecting hole, the connecting rod is provided with an air chamber, and the connecting hole and the air chamber are connected.

[0015] Optionally, the sealing assembly includes a first sealing member, which is arranged on a side of the sealing cover facing the installation port, and is used to seal a gap between the sealing cover and the explosion-proof valve.

[0016] Optionally, the sealing assembly includes a second sealing member, which is disposed between the sealing cover and the connecting rod, and is used to seal the gap between the sealing cover and the connecting rod.

[0017] Optionally, the sealing assembly includes a third sealing member, which is arranged between the connecting sleeve and the connecting rod, and is used to seal the gap between the sealing cover and the connecting rod.

[0018] Optionally, the shell includes a limiting portion, which is connected to the connecting sleeve at the position of the installation port and extends toward the installation port. The limiting portion and the connecting sleeve are surrounded to form an insertion groove, which is used for partially inserting the explosion-proof valve into the installation port along the axial direction perpendicular to the axial direction of the give way cavity. The limiting portion is used to limit the movement of the explosion-proof valve along the axial direction of the give way cavity.

[0019] Optionally, the driving assembly includes a cam and a handle, the end of the connecting rod away from the suction cup is rotatably connected to the cam, the cam is connected to the handle, and the cam is used to abut against the connecting sleeve to drive the connecting rod to move.

[0020] The beneficial effects of the present invention are:

[0021] The airtight plug fixture includes a shell, a sealing assembly, a connector, and a drive assembly. The shell includes a connecting sleeve, and a clearance cavity and an installation port connected to the clearance cavity are formed inside the connecting sleeve. The sealing assembly includes a sealing cover, and the sealing cover and the connecting sleeve slide together along the axis of the clearance cavity. The sealing cover forms a detection chamber toward the installation port, and the sealing cover is used to abut against the explosion-proof valve to seal the detection chamber. The connector is connected to the sealing cover, and the connector is connected to the detection chamber. The connector is used to connect to an external airtightness detection device. The drive assembly includes a suction cup, which is slidably connected to the sealing cover and is used to adsorb the explosion-proof valve. The drive assembly is used to drive the sealing cover to abut the explosion-proof valve.

[0022] In actual application, when assembling the explosion-proof valve, the operator first inserts the explosion-proof valve into the clearance cavity from the installation port. The suction cup then moves to adhere to the explosion-proof valve. Simultaneously, the drive assembly moves the sealing cover to ensure contact between the sealing cover and the explosion-proof valve, thereby sealing the test chamber. This design eliminates the need for applying sealant, simplifies the airtightness test process, and improves the efficiency of airtightness testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0024] Figure 1 This is a schematic diagram of the overall structure of an airtight plug tooling equipped with an explosion-proof valve provided by an embodiment of the present utility model;

[0025] Figure 2 This is a schematic diagram of the overall structure of an airtight plug tooling equipped with an explosion-proof valve provided by an embodiment of the present utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the communication hole provided by the embodiment of the present utility model;

[0027] Figure 4 The embodiment of the present utility model provides Figure 3 Schematic diagram of the cross-sectional structure at AA in the middle.

[0028] Description of Figure Numbers:

[0029] 20. Shell; 21. Connecting sleeve; 211. Movable cavity; 212. Mounting port; 213. Second guide groove; 22. Limiting portion; 23. Insertion groove; 30. Sealing assembly; 31. Sealing cover; 311. Detection chamber; 312. First guide groove; 32. First sealing member; 33. Second sealing member; 34. Third sealing member; 40. Driving assembly; 41. Connecting rod; 411. Air chamber; 42. Cam; 43. Handle; 44. Abutment portion; 45. First elastic member; 46. Second elastic member; 47. Suction cup; 471. Connecting hole; 50. Connector; 60. Explosion-proof valve. DETAILED DESCRIPTION

[0030] 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. Obviously, the embodiments described 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.

[0031] See also Figures 1 to 4 As shown, Figure 1 This is a schematic diagram of the overall structure of an airtight plug tooling equipped with an explosion-proof valve 60 provided in an embodiment of the present utility model. Figure 2 This is a schematic diagram of the overall structure of an airtight plug tooling equipped with an explosion-proof valve 60 provided in an embodiment of the present utility model. Figure 3 This is a schematic diagram of the structure of the communication hole 471 provided in an embodiment of the present utility model. Figure 4 The embodiment of the present utility model provides Figure 3 Schematic diagram of the cross-sectional structure at AA in the middle.

[0032] The embodiment of the present utility model provides an airtight plug fixture, comprising: a shell 20, a sealing assembly 30, a connector 50 and a drive assembly 40. The shell 20 includes a connecting sleeve 21, and a clearance cavity 211 and an installation port 212 connected to the clearance cavity 211 are formed inside the connecting sleeve 21. The sealing assembly 30 includes a sealing cover 31, and the sealing cover 31 and the connecting sleeve 21 are slidably matched along the axial direction of the clearance cavity 211. The sealing cover 31 forms a detection chamber 311 in the direction of the installation port 212. The sealing cover 31 is used to abut against the explosion-proof valve 60 to seal the detection chamber 311. The connector 50 is connected to the sealing cover 31, and the connector 50 is connected to the detection chamber 311. The connector 50 is used to connect to an external airtightness detection device. The drive assembly 40 includes a suction cup 47, which is slidably connected to the sealing cover 31. The suction cup 47 is used to adsorb the explosion-proof valve 60. The drive assembly 40 is used to drive the sealing cover 31 to abut against the explosion-proof valve 60.

[0033] In actual application, when assembling the explosion-proof valve 60, the operator first inserts the explosion-proof valve 60 into the clearance cavity 211 from the installation port 212, and then moves the suction cup 47 to adsorb the explosion-proof valve 60. At the same time, the driving assembly 40 drives the sealing cover 31 to move to ensure that the sealing cover 31 is in contact with the explosion-proof valve 60, thereby sealing the detection chamber 311. This design does not require the application of sealant, simplifies the operating process of airtightness testing, and improves the efficiency of airtightness testing. When performing an airtightness test on the battery shell 20, if the airtightness of the shell 20 does not meet the standard, the internal gas will enter the detection chamber 311 through the explosion-proof valve 60, and the detection equipment will detect the gas inflow through the connector 50; on the contrary, if the airtightness meets the standard, the internal gas cannot enter the detection chamber 311, and the detection equipment will not detect the gas inflow. This process significantly improves the efficiency and accuracy of airtightness testing.

[0034] Further, see Figure 4 The driving assembly 40 includes a connecting rod 41 and a first elastic member 45. The first elastic member 45 is a spring. The connecting rod 41 is passed through the sealing cover 31 and the connecting sleeve 21 and is connected to the suction cup 47. The suction cup 47 slides along the axial direction of the connecting sleeve 21 through the connecting rod 41 and the connecting sleeve 21. The first elastic member 45 is assembled in the detection chamber 311. One end of the first elastic member 45 is connected to the connecting rod 41, and the other end is connected to the sealing cover 31.

[0035] In actual application, the operator drives the suction cup 47 to move by moving the connecting rod 41. When the suction cup 47 moves to suck the explosion-proof valve 60, the connecting rod 41 drives the sealing cover 31 to move through the first elastic member 45 until the sealing cover 31 abuts against the explosion-proof valve 60, and the elastic force applied by the first elastic member 45 to the sealing cover 31 causes the sealing cover 31 to press tightly against the explosion-proof valve 60.

[0036] Further, see Figure 4 The driving assembly 40 includes an abutment portion 44, which is arranged around the connecting rod 41 and connected to one end of the connecting rod 41 close to the suction cup 47. The first elastic member 45 is sleeved on the connecting rod 41, and one end of the first elastic member 45 is connected to the abutment portion 44, and the other end is connected to the sealing cover 31.

[0037] In actual application, the abutment portion 44 provides a structure to support the first elastic member 45, so that the connection of the first elastic member 45 is more stable, and the first elastic member 45 is sleeved on the connecting rod 41, so that the deformation direction of the first elastic member 45 is constrained, thereby realizing the control of the deformation direction of the first elastic member 45 and improving the stability and reliability of the first elastic member 45.

[0038] Further, see Figure 4 The sealing cover 31 defines a first guide groove 312 along the axial direction of the connecting sleeve 21 , and a portion of the first elastic member 45 is disposed in the first guide groove 312 .

[0039] In actual application, the setting of the first guide groove 312 enables the first elastic member 45 to be stably positioned between the sealing cover 31 and the connecting rod 41, thereby ensuring that the sealing cover 31 slides along a predetermined trajectory during movement, reducing the offset or jamming of the first elastic member 45 when it is deformed, and enabling the sealing cover 31 to more effectively abut against the explosion-proof valve 60, thereby improving the accuracy of air tightness detection.

[0040] Optionally, see Figure 4 The driving assembly 40 includes a second elastic member 46, which is a spring. The second elastic member 46 is assembled in the give way cavity 211, and the second elastic member 46 is sleeved on the connecting rod 41. One end of the second elastic member 46 is connected to the sealing cover 31, and the other end is connected to the connecting sleeve 21.

[0041] In practice, the second elastic member 46 provides additional elastic support between the sealing cover 31 and the connecting sleeve 21, ensuring that the sealing cover 31 and the explosion-proof valve 60 maintain an appropriate pressing force when they abut. This provides a more stable fit between the sealing cover 31 and the explosion-proof valve 60, preventing seal failure due to external forces or improper operation. This improves the sealing performance of the detection chamber 311 and ensures the accuracy and reliability of airtightness testing.

[0042] Further, refer to Figure 4 The connecting sleeve 21 defines a second guide groove 213 along its own axial direction, and a portion of the second elastic member 46 is disposed in the second guide groove 213 .

[0043] In practical applications, the second guide groove 213 provided along the axial direction of the connecting sleeve 21 provides a stable axial guide structure for the second elastic member 46. This design ensures that the force direction of the second elastic member 46 is more uniform within the connecting sleeve 21, reduces the possibility of deviation of the second elastic member 46, and effectively improves detection accuracy and the service life of the second elastic member 46.

[0044] Optionally, refer to Figure 4 The suction cup 47 is provided with a communicating hole 471 , the connecting rod 41 is provided with an air chamber 411 , and the communicating hole 471 is in communication with the air chamber 411 .

[0045] In practice, the connecting hole 471 of the suction cup 47 communicates with the air chamber 411 within the connecting rod 41, allowing the suction cup 47 to more effectively adjust the air pressure when sucking the explosion-proof valve 60. By regulating the pressure of the air chamber 411, the suction cup 47 can achieve more flexible operation during the process of sucking and releasing the explosion-proof valve 60, improving the reliability and speed of suction.

[0046] Optionally, refer to Figure 4The sealing assembly 30 includes a first sealing member 32 , which is disposed on a side of the sealing cover 31 facing the mounting opening 212 . The first sealing member 32 is used to seal the gap between the sealing cover 31 and the explosion-proof valve 60 .

[0047] In practical applications, the provision of the first sealing member 32 can effectively fill the gap between the sealing cover 31 and the explosion-proof valve 60 , thereby preventing gas leakage between the detection chamber 311 and the external environment, and improving the accuracy of airtightness detection.

[0048] Optionally, refer to Figure 4 The sealing assembly 30 includes a second sealing member 33 , which is disposed between the sealing cover 31 and the connecting rod 41 . The second sealing member 33 is used to seal the gap between the sealing cover 31 and the connecting rod 41 .

[0049] In actual application, the setting of the second sealing member 33 can effectively close the gap between the sealing cover 31 and the connecting rod 41, thereby preventing gas leakage between the detection chamber 311 and the connecting rod 41, reducing the impact of gas leakage on the normal function of the sealing cover 31 during operation, and improving the accuracy of airtightness detection.

[0050] Optionally, refer to Figure 4 The sealing assembly 30 includes a third sealing member 34 , which is disposed between the connecting sleeve 21 and the connecting rod 41 . The third sealing member 34 is used to seal the gap between the sealing cover 31 and the connecting rod 41 .

[0051] In actual application, the setting of the third seal 34 can effectively seal the gap between the connecting sleeve 21 and the connecting rod 41, thereby preventing gas leakage between the sealing cover 31 and the detection chamber 311, enhancing the sealing performance of the entire airtight plug tooling, and ensuring that the test results will not be affected by the penetration of external gas during the airtightness test.

[0052] Optionally, refer to Figure 4 The shell 20 includes a limiting portion 22, which is connected to the connecting sleeve 21 at the position of the mounting port 212 and extends toward the mounting port 212. The limiting portion 22 and the connecting sleeve 21 are surrounded by an insertion groove 23, which is used for partially inserting the explosion-proof valve 60 into the mounting port 212 along the axial direction perpendicular to the give way cavity 211. The limiting portion 22 is used to limit the movement of the explosion-proof valve 60 along the axial direction of the give way cavity 211.

[0053] In practice, the design of the stopper 22, by forming an insertion groove 23, allows the explosion-proof valve 60 to be stably and accurately partially inserted into the mounting opening 212, providing clear positioning guidance. This structure not only ensures the precise positioning of the explosion-proof valve 60 during assembly, reducing assembly errors, but also effectively limits excessive movement of the explosion-proof valve 60 along the axis of the clearance cavity 211, thereby preventing potential damage and functional failure. The presence of the stopper 22 improves the convenience and safety of the overall assembly and enhances the stability and reliability of the airtight plug tooling in practical applications.

[0054] In this embodiment, when assembling the explosion-proof valve 60, the operator first aligns the explosion-proof valve 60 with the insertion groove 23. Utilizing the guiding function of the insertion groove 23, the explosion-proof valve 60 is slowly inserted into the installation opening 212 along an axial direction perpendicular to the axial direction of the clearance cavity 211. At this point, the axis of the explosion-proof valve 60 is parallel to the axis of the connecting sleeve 21, and the stopper 22 is inserted into the annular groove of the explosion-proof valve 60. The structure of the stopper 22 can provide the necessary support and restriction during the insertion of the explosion-proof valve 60, preventing the explosion-proof valve 60 from moving along the axial direction of the connecting sleeve 21, ensuring that the explosion-proof valve 60 is firmly positioned in the airtight plug fixture, and thus improving the convenience of overall assembly.

[0055] Optionally, refer to Figure 1 、 Figure 2 and Figure 4 The driving assembly 40 includes a cam 42 and a handle 43. The end of the connecting rod 41 away from the suction cup 47 is rotatably connected to the cam 42. The cam 42 is connected to the handle 43. The cam 42 is used to abut against the connecting sleeve 21 to drive the connecting rod 41 to move.

[0056] In practice, the operator rotates the handle 43 to drive the cam 42, thereby moving the connecting rod 41. This structure provides a simple and efficient manual control method, allowing the sealing cover 31 to quickly and accurately abut the explosion-proof valve 60. The shape and motion trajectory of the cam 42 optimize the range of motion and force of the connecting rod 41, ensuring that the sealing cover 31 applies uniform pressure when contacting the explosion-proof valve 60. This not only improves assembly efficiency but also enhances the operational flexibility of the airtight plug tooling.

[0057] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship and movement status of the various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0058] It should also be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element through an intervening element.

[0059] In addition, the descriptions of "first," "second," etc. in this utility model are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0060] The above are only preferred embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the utility model concept, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An airtight plugging tool, characterized in that: include: A housing, the housing comprising a connecting sleeve, the connecting sleeve having a clearance cavity and a mounting port communicating with the clearance cavity formed therein; A sealing assembly, the sealing assembly comprising a sealing cover, the sealing cover and the connecting sleeve slidingly engaging along the axial direction of the give way cavity, the sealing cover forming a detection chamber in the direction toward the mounting opening, the sealing cover being configured to abut against the explosion-proof valve to seal the detection chamber; A connector, the connector is connected to the sealing cover, the connector is communicated with the detection chamber, and the connector is used to connect to an external air tightness detection device; The driving assembly includes a suction cup, which is slidably connected to the sealing cover and is used for adsorbing the explosion-proof valve. The driving assembly is used for driving the sealing cover to abut against the explosion-proof valve.

2. The airtight plugging tool according to claim 1, characterized in that: The driving assembly includes a connecting rod and a first elastic member. The connecting rod is passed through the sealing cover and the connecting sleeve and is connected to the suction cup. The suction cup slides along the axial direction of the connecting sleeve through the connecting rod and the connecting sleeve. The first elastic member is assembled in the detection chamber. One end of the first elastic member is connected to the connecting rod, and the other end is connected to the sealing cover.

3. The airtight plugging tool according to claim 2, characterized in that: The driving assembly includes an abutment portion, which is connected to one end of the connecting rod close to the suction cup. The first elastic member is sleeved on the connecting rod, and one end of the first elastic member is connected to the abutment portion, and the other end is connected to the sealing cover.

4. The airtight plugging tool according to claim 3, characterized in that: The sealing cover is provided with a first guide groove, and the first elastic member is partially disposed in the first guide groove.

5. The airtight plugging tool according to claim 2, characterized in that: The driving assembly includes a second elastic member, which is assembled in the give way cavity and sleeved on the connecting rod. One end of the second elastic member is connected to the sealing cover, and the other end is connected to the connecting sleeve.

6. The airtight plugging tool according to claim 5, characterized in that: The connecting sleeve is provided with a second guide groove, and the second elastic member is partially disposed in the second guide groove.

7. The airtight plugging tool according to any one of claims 2 to 6, characterized in that: The suction cup is provided with a communicating hole, the connecting rod is provided with an air chamber, and the communicating hole is communicated with the air chamber.

8. The airtight plugging tool according to any one of claims 1 to 6, characterized in that: The sealing assembly includes a first sealing member, which is arranged on a side of the sealing cover facing the installation port, and is used for sealing a gap between the sealing cover and the explosion-proof valve.

9. The airtight plugging tool according to any one of claims 2 to 6, characterized in that: The sealing assembly includes a second sealing member, which is disposed between the sealing cover and the connecting rod and is used to seal a gap between the sealing cover and the connecting rod.

10. The airtight plugging tool according to any one of claims 2 to 6, characterized in that: The sealing assembly includes a third sealing member, which is arranged between the connecting sleeve and the connecting rod and is used to seal the gap between the sealing cover and the connecting rod.

11. The airtight plugging tool according to any one of claims 1 to 6, characterized in that: The shell includes a limiting portion, which is connected to the connecting sleeve at the position of the installation port and extends toward the installation port. The limiting portion and the connecting sleeve are surrounded by an insertion groove, and the insertion groove is used for the explosion-proof valve to be partially inserted into the installation port along the axial direction perpendicular to the axial direction of the give way cavity. The limiting portion is used to limit the movement of the explosion-proof valve along the axial direction of the give way cavity.

12. The airtight plugging tool according to any one of claims 2 to 6, characterized in that: The driving assembly includes a cam and a handle. The end of the connecting rod away from the suction cup is rotatably connected to the cam. The cam is connected to the handle. The cam is used to abut against the connecting sleeve to drive the connecting rod to move.

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