Lithium battery sealing performance testing device

Abstract

The invention relates to the technical field of detection, and discloses a lithium battery sealing performance testing device which comprises a sealing assembly, a sealing piece, a sealing door, a rotating column, a limiting wheel, a limiting block and a torsional spring, the rotating column is inserted into one side of the sealing door, the limiting wheel is fixed to one end of the rotating column, and the limiting block is located on one side of the limiting wheel. The lithium battery detection device has the beneficial effects that the lithium battery can be sealed by using the sealing door during detection, the detection table is driven to move when the lithium battery is opened and closed, manual starting and stopping are not needed, the sealing door can effectively isolate interference of external environmental factors such as temperature, humidity and dust on the lithium battery and the detection process, and the detection efficiency is improved. When the sealing door is opened and closed, the detection table can be driven to accurately move, so that the position deviation generated when the platform is manually started and stopped is avoided, the lithium battery can be accurately placed at a fixed position below the detector during each detection, and the consistency of the relative position relationship between the detector and the battery is ensured.

Description

Technical Field

[0001] The invention relates to the field of detection technology, in particular to a lithium battery sealing test device. Background Art

[0002] The lithium battery sealing test device is a device specially used to detect the sealing performance of lithium batteries. Its main function is to ensure that the lithium battery will not have problems such as electrolyte leakage and gas leakage during use, thereby ensuring the safety, performance and service life of the lithium battery. The operator carefully places the lithium battery to be tested on the lithium battery placement device of the platform. After placing the battery, the operator starts the mobile platform through the control button or computer program instructions. When the platform moves the lithium battery to the bottom of the detector and stops, the detector automatically starts the detection program to detect it. However, during the detection, the lithium battery is usually exposed. The exposed lithium battery is easily affected by external environmental factors, which may cause the performance of the internal materials of the battery to change, thereby affecting the performance of its sealing performance. In addition, the platform needs to be manually started and stopped during the detection. Due to the subjectivity and inaccuracy of manual operation, there may be a certain deviation in its position each time the platform is started and stopped, which may cause the placement of the lithium battery under the detector to be inaccurate, thereby affecting the relative position relationship between the detector and the battery, and reducing the repeatability and comparability of the test results. Summary of the invention

[0003] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0004] In view of the above problems and / or the problems existing in the existing lithium battery sealing test device, the present invention is proposed.

[0005] Therefore, the problem to be solved by the present invention is that during detection, the lithium battery is usually exposed to the outside, and the exposed lithium battery is easily affected by external environmental factors. In addition, during detection, the platform needs to be started and stopped manually, and its position may have a certain deviation.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a lithium battery sealing test device, comprising a sealing assembly, a sealing member, a sealing door, a rotating column, a limiting wheel, a limiting block and a torsion spring, wherein the rotating column is plugged into one side of the sealing door, the limiting wheel is fixed to one end of the rotating column, the limiting block is located at one side of the limiting wheel, and the torsion spring is fixed to one side of the limiting block;

[0007] A pushing assembly is arranged on one side of the closure member, including a pushing member, including a pushing plate, a pushing block, a pushing frame, a rotating rod, a gear and a rack. The pushing plate is arranged on one side of the closure member, the pushing block is fixed to the top of the pushing plate, the pushing frame is hinged to the top of the pushing block, the rotating rod is hinged to one end of the pushing frame, the gear is fixed to one side of the rotating rod, the rack is located at the bottom of the gear, and the gear and the rack are meshed.

[0008] As a preferred solution of the lithium battery sealing test device described in the present invention, wherein: the closing component also includes a support member, which is arranged on the closing door, a rotating plate is fixed on one side of the closing door, an arc surface block is arranged on one side of the rotating plate, the rotating plate and the arc surface block are hinged, a positioning plate is arranged on one side of the arc surface block, and the positioning plate and the arc surface block are hinged.

[0009] As a preferred solution of the lithium battery sealing test device described in the present invention, a first spring is fixed to one side of the arc block, a support plate is fixed to one end of the first spring, the support plate is fixed to the top of the positioning plate, and a baffle is fixed to the top of the positioning plate.

[0010] As a preferred solution of the lithium battery sealing test device described in the present invention, wherein: a shift bar is fixed to one side of the limit block, a protective cover is sleeved on the outer side of the shift bar, the shift bar and the protective cover are movably connected, a first pulley is sleeved on the outer side of the rotating column, a belt is sleeved on the outer side of the first pulley, and a second pulley is arranged inside the belt.

[0011] As a preferred solution of the lithium battery sealing test device described in the present invention, the pushing assembly also includes a movable part, which is arranged on the second pulley, a movable rod is fixed to one side of the second pulley, an extrusion rod is arranged at one end of the movable rod, the extrusion rod and one end of the movable rod are hinged, the extrusion rod is hinged to one end of the rack, and a protective plate is arranged on one side of the extrusion rod.

[0012] As a preferred solution of the lithium battery sealing test device described in the present invention, a slider is fixed at the bottom of the rack, a positioning bar is inserted into one side of the slider, the slider and the positioning bar are movably connected, and a second spring is fixed to one side of the slider.

[0013] As a preferred solution of the lithium battery sealing test device described in the present invention, a pulley is provided at one end of the rack, a connecting rod is sleeved on the outer side of the pulley, the pulley and the connecting rod are hinged, and the connecting rod is fixed to one end of the rack.

[0014] As a preferred solution of the lithium battery sealing test device described in the present invention, wherein: a sliding frame is sleeved on the outer side of the pulley, the pulley slides in the sliding frame, a positioning block is sleeved on the outer side of the rotating rod, and the positioning block and the rotating rod are rotatably connected via a rotating shaft.

[0015] As a preferred solution of the lithium battery sealing test device described in the present invention, it also includes a main body component, which is arranged on the push plate, including a detection table and a test machine, the detection table is fixed on one side of the push plate, and the test machine is mounted on the outside of the detection table.

[0016] As a preferred solution of the lithium battery sealing test device of the present invention, a base is fixed at the bottom of the test machine.

[0017] The beneficial effects of the present invention are as follows: during detection, a closed door can be used to seal the lithium battery, and when it is opened and closed, the detection platform can be driven to move without manual start and stop. The closed door can effectively isolate external environmental factors such as temperature, humidity, dust, etc. from interfering with the lithium battery and the detection process. When the closed door is opened and closed, the detection platform can be driven to move accurately, avoiding the position deviation caused by manual start and stop of the platform. During each detection, the lithium battery can be accurately placed in a fixed position below the detector, ensuring the consistency of the relative position relationship between the detector and the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. 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 these drawings without creative labor. Among them:

[0019] Figure 1 This is the overall structure diagram of the lithium battery sealing test device.

[0020] Figure 2 This is the overall cross-sectional structure diagram of the lithium battery sealing test device.

[0021] Figure 3 This is a partial enlarged structural diagram of point C in 2 of the lithium battery sealing test device.

[0022] Figure 4 This is a structural diagram of the test bench for the lithium battery sealing test device.

[0023] Figure 5 This is a gear structure diagram of a lithium battery sealing test device.

[0024] Figure 6 This is a diagram of the push plate structure of the lithium battery sealing test device.

[0025] Figure 7 For lithium battery sealing test device Figure 6 A partial enlarged structural diagram in the middle.

[0026] Figure 8 This is a structural diagram of the closed door of a lithium battery sealing test device.

[0027] Fig. 9 For lithium battery sealing test device Figure 8 A partial enlarged structural diagram of point B in the middle. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0029] Example 1

[0030] Reference Figure 2 to Figure 9 , which is the first embodiment of the present invention, provides a lithium battery sealing test device, which includes a sealing component 200, a pushing component 300 and a main body component 100. The three can cooperate to use a sealing door to seal the lithium battery during testing, and drive the test platform to move when it is opened and closed.

[0031] The closing assembly 200 includes a closing member 201, including a closing door 201a, a rotating column 201b, a limiting wheel 201c, a limiting block 201d and a torsion spring 201e. The rotating column 201b is inserted into one side of the closing door 201a, the limiting wheel 201c is fixed to one end of the rotating column 201b, the limiting block 201d is located on one side of the limiting wheel 201c, and the torsion spring 201e is fixed to one side of the limiting block 201d.

[0032] After placing the lithium battery on the testing platform 101, the closed door 201a is closed. A handle is provided on one side of the closed door 201a to facilitate the user to move the closed door 201a. When the closed door 201a moves, it will drive the rotating column 201b to rotate. The rotating column 201b is plugged into the testing machine 102. The rotating column 201b is rotatably connected to the testing machine 102 through a rotating shaft. When the rotating column 201b rotates, it will drive the limiting wheel 201c to rotate, and when the rotating column 201b rotates, it will also drive the testing platform 101 to move. After the closed door 201a is completely closed, the testing platform 101 will also move to the bottom of the testing machine 102. In order to prevent the closed door 201a from closing automatically after opening, the setting of the limit block 201d can be used to The limiting wheel 201c is limited, so that the closed door 201a can be limited. A transparent inspection window is provided on one side of the closed door 201a, so that the user can observe the detection status of the lithium battery. After the detection is completed, the limiting block 201d is moved. The limiting block 201d is hinged to the inner wall of the testing machine 102. The limiting block 201d can apply a twisting force to the torsion spring 201e when moving. The limiting block 201d moves and separates from the limiting wheel 201c, so that the limit on the limiting wheel 201c can be released. At this time, the closed door 201a can return to its original position and close, and then the limiting block 201d is released. The force of the rotation of the torsion spring 201e can drive the limiting block 201d and the limiting wheel 201c to re-engage for the next use.

[0033] The pushing assembly 300 is arranged on one side of the closure member 201, and includes a pushing member 301, including a pushing plate 301a, a pushing block 301b, a pushing frame 301c, a rotating rod 301d, a gear 301e and a rack 301f. The pushing plate 301a is arranged on one side of the closure member 201, the pushing block 301b is fixed to the top of the pushing plate 301a, the pushing frame 301c is hinged to the top of the pushing block 301b, the rotating rod 301d is hinged to one end of the pushing frame 301c, the gear 301e is fixed to one side of the rotating rod 301d, the rack 301f is located at the bottom of the gear 301e, and the gear 301e and the rack 301f are meshed.

[0034] When the rotating column 201b rotates, the rack 301f can be driven to move. At this time, the movement of the rack 301f can drive the gear 301e to rotate. The rotation of the gear 301e will drive the rotating rod 301d to rotate. The rotation of the rotating rod 301d can squeeze the push frame 301c to make it move. The movement of the push frame 301c will drive the push block 301b to move. The movement of the push block 301b will drive the push plate 301a to move. The movement of the push plate 301a can drive the detection platform 101 to move. When the closed door 201a is opened, the detection platform 101 can be moved to the side of the tester in the testing machine 102, which is convenient for the user to place the lithium battery. When the closed door 201a is closed, the detection platform 101 can move the lithium battery to the bottom of the tester in the testing machine 102, so that it can be tested. A pneumatic clamp is provided on the detection platform 101 for fixing the lithium battery. The detection platform 101 belongs to the prior art and will not be elaborated again.

[0035] Example 2

[0036] Reference Figure 2 to Figure 9 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0037] Specifically, the closing component 200 also includes a support member 202, which is arranged on the closing door 201a, and a rotating plate 202a is fixed to one side of the closing door 201a, and an arc block 202b is arranged on one side of the rotating plate 202a, and the rotating plate 202a and the arc block 202b are hinged, and a positioning plate 202c is arranged on one side of the arc block 202b, and the positioning plate 202c and the arc block 202b are hinged.

[0038] When the closed door 201a moves, the rotating plate 202a can be driven to move, and the movement of the rotating plate 202a can drive the arc block 202b to move. After the limit on the closed door 201a is released, the arc block 202b returns to its original position to drive the rotating plate 202a to move, and the movement of the rotating plate 202a can drive the closed door 201a to close. The positioning plate 202c is fixed to the inner wall of the testing machine 102. The positioning plate 202c can support the arc block 202b to prevent the arc block 202b from shifting.

[0039] Specifically, a first spring 202d is fixed to one side of the arc block 202b, a support plate 202e is fixed to one end of the first spring 202d, the support plate 202e is fixed to the top of the positioning plate 202c, and a baffle 202f is fixed to the top of the positioning plate 202c.

[0040] When the arc block 202b moves, a pulling force can be applied to the first spring 202d, and the rebound force of the first spring 202d can drive the arc block 202b to return to its original position. The first spring 202d can be supported by the setting of the support plate 202e to prevent the first spring 202d from deflecting. When the arc block 202b returns to its original position, the moving position of the arc block 202b can be limited by the setting of the baffle 202f to prevent the arc block 202b from moving excessively and causing the closed door 201a to flip into the testing machine 102.

[0041] Specifically, a shift bar 202g is fixed to one side of the limit block 201d, a protective cover 202h is sleeved on the outer side of the shift bar 202g, the shift bar 202g and the protective cover 202h are movably connected, a first pulley 202i is sleeved on the outer side of the rotating column 201b, a belt 202j is sleeved on the outer side of the first pulley 202i, and a second pulley 202k is arranged inside the belt 202j.

[0042] The setting of the shift bar 202g is convenient for the user to move the limit block 201d. The protective cover 202h is fixed on one side of the testing machine 102. The setting of the protective cover 202h can support the shift bar 202g to prevent the shift bar 202g from being offset. When the rotating column 201b rotates, the first pulley 202i can be driven to rotate. The rotation of the first pulley 202i can drive the belt 202j to rotate. The rotation of the belt 202j can drive the second pulley 202k to rotate. The rotation of the second pulley 202k can drive the rack 301f to move. The first pulley 202i and the second pulley 202k are both rotatably connected to the inner wall of the testing machine 102 through a rotating shaft.

[0043] Specifically, the pushing assembly 300 also includes a movable part 302, which is arranged on the second pulley 202k. A movable rod 302a is fixed to one side of the second pulley 202k. An extrusion rod 302b is arranged at one end of the movable rod 302a. The extrusion rod 302b is hinged to one end of the movable rod 302a, and the extrusion rod 302b is hinged to one end of the rack 301f. A protective plate 302c is arranged on one side of the extrusion rod 302b.

[0044] When the second pulley 202k rotates, the movable rod 302a can be driven to rotate. When the movable rod 302a rotates, the squeezing rod 302b can be driven to move. The rack 301f can be squeezed by the movement of the squeezing rod 302b, thereby driving the rack 301f to move. The protective plate 302c is fixed to the inner wall of the testing machine 102. The squeezing rod 302b can be protected by the setting of the protective plate 302c.

[0045] Specifically, a slider 302d is fixed to the bottom of the rack 301f, a positioning bar 302e is inserted into one side of the slider 302d, the slider 302d and the positioning bar 302e are movably connected, and a second spring 302f is fixed to one side of the slider 302d.

[0046] A slide groove corresponding to the slider 302d is provided in the testing machine 102. When the rack 301f moves, the slider 302d can be driven to slide in the slide groove. At this time, the movement of the slider 302d can apply a squeezing force to the second spring 302f. After the squeezing of the rack 301f is released, the slider 302d can be driven to return to its original position by the rebound force of the second spring 302f. The positioning bar 302e is fixed to the inner wall of the slide groove. The positioning bar 302e can be set to support the slider 302d to prevent the slider 302d from deviating when moving.

[0047] Example 3

[0048] Reference Figures 1 to 9 , which is the third embodiment of the present invention, and is based on the first two embodiments.

[0049] Specifically, a pulley 302g is provided at one end of the rack 301f, a connecting rod 302h is sleeved on the outer side of the pulley 302g, the pulley 302g and the connecting rod 302h are hinged, and the connecting rod 302h is fixed to one end of the rack 301f.

[0050] When the rack 301f moves, it can drive the connecting rod 302h to move, and the connecting rod 302h can drive the pulley 302g to move. At this time, the movement of the pulley 302g can support one end of the rack 301f to prevent one end of the rack 301f from deflecting.

[0051] Specifically, a sliding frame 302i is sleeved on the outer side of the pulley 302g, and the pulley 302g slides in the sliding frame 302i. A positioning block 302j is sleeved on the outer side of the rotating rod 301d, and the positioning block 302j and the rotating rod 301d are rotatably connected through a rotating shaft.

[0052] The sliding frame 302i is fixed to the inner wall of the testing machine 102. The setting of the sliding frame 302i can support the pulley 302g to prevent the pulley 302g from shifting during movement. The positioning block 302j is fixed to the inner wall of the testing machine 102. The setting of the positioning block 302j can support the rotating rod 301d.

[0053] Specifically, it also includes a main body component 100 , which is arranged on the push plate 301 a , including a detection table 101 and a testing machine 102 . The detection table 101 is fixed on one side of the push plate 301 a , and the testing machine 102 is sleeved on the outside of the detection table 101 .

[0054] The testing table 101 is a basic platform for placing lithium batteries. The lithium battery placement device on the testing table 101 can firmly carry and fix the lithium batteries to be tested, ensuring that the lithium batteries will not shake, displace or fall during the movement and testing process, providing a stable foundation for subsequent accurate testing. The testing machine 102 is the core equipment for directly performing sealing tests on lithium batteries. The testing machine 102 performs specific testing operations on the lithium batteries located thereunder according to different testing principles and methods.

[0055] Specifically, a base 103 is fixed at the bottom of the testing machine 102 .

[0056] The base 103 provides stable physical support for the entire device, ensuring that it can maintain a stable state during the detection process, thereby ensuring the accuracy and reliability of the detection. A button is provided on the base 103 for controlling the power on and off of the entire lithium battery sealing test device. After pressing the power button to turn on the power, the various components of the device begin to power on and enter the standby or initialization state to prepare for subsequent detection operations.

[0057] When in use, the closed door 201a can be opened by moving the handle on one side of the closed door 201a. When the closed door 201a moves, the rotating plate 202a can be driven to move. The movement of the rotating plate 202a can drive the arc block 202b to move. The movement of the arc block 202b can apply a pulling force to the first spring 202d. At this time, in order to prevent the rebound force of the first spring 202d from driving the arc block 202b to return to its original position, the closed door 201 can be locked by engaging the limit block 201d with the limit wheel 201c. a is used for position limiting, when the closed door 201a moves, the rotating column 201b can be driven to rotate, and when the rotating column 201b rotates, the first pulley 202i can be driven to rotate, and the belt 202j can be driven to rotate by the rotation of the first pulley 202i, and the second pulley 202k can be driven to rotate by the rotation of the belt 202j, and the movable rod 302a can be driven to rotate by the rotation of the second pulley 202k, and when the movable rod 302a rotates, the extrusion rod 302b can be driven to move, and the rack 301f can be adjusted by the movement of the extrusion rod 302b The rack 301f is squeezed, thereby driving the rack 301f to move. When the rack 301f moves, it can drive the slider 302d to slide in the slide groove. At this time, the movement of the slider 302d can apply a squeezing force to the second spring 302f. The movement of the rack 301f drives the connecting rod 302h to move. The connecting rod 302h drives the pulley 302g to move. At this time, the movement of the pulley 302g can support one end of the rack 301f to prevent one end of the rack 301f from deflecting, and the movement of the rack 301f can drive The gear 301e rotates, and the rotation of the gear 301e drives the rotating rod 301d to rotate. The rotation of the rotating rod 301d can squeeze the push frame 301c to make it move. The movement of the push frame 301c drives the push block 301b to move. The movement of the push block 301b drives the push plate 301a to move. The movement of the push plate 301a can drive the detection table 101 to move. When the closed door 201a is opened, the detection table 101 can be moved to the side of the tester in the testing machine 102, so that the user can place the lithium battery.

[0058] After placement is completed, the limit block 201d is driven to move by moving the dial bar 202g. When moving, the limit block 201d can apply a torsional force to the torsion spring 201e, and the limit block 201d moves and separates from the limit wheel 201c, so that the limit on the limit wheel 201c can be released. At this time, the rebound force of the first spring 202d can drive the arc block 202b to return to its original position. The return of the arc block 202b to its original position can drive the rotating plate 202a to move, and the movement of the rotating plate 202a can drive the closed door 201a to close, and the closed door 201a can be closed. When the door 201a is closed, the rotating column 201b will be driven to reverse, and the squeezing of the rack 301f will be released. Then, the rebound force of the second spring 302f can drive the slider 302d to return to its original position. The slider 302d drives the rack 301f to return to its original position. At this time, the testing platform 101 can move the lithium battery to the bottom of the tester in the testing machine 102, so that it can be tested. Then release the lever 202g, and the rotation force of the torsion spring 201e can drive the limit block 201d and the limit wheel 201c to re-engage for the next use.

[0059] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A lithium battery sealing test device, characterized in that: include, A closing assembly (200) comprises a closing member (201), comprising a closing door (201a), a rotating column (201b), a limiting wheel (201c), a limiting block (201d) and a torsion spring (201e), wherein the rotating column (201b) is plugged into one side of the closing door (201a), the limiting wheel (201c) is fixed to one end of the rotating column (201b), the limiting block (201d) is located on one side of the limiting wheel (201c), and the torsion spring (201e) is fixed to one side of the limiting block (201d); The pushing assembly (300) is arranged on one side of the closing member (201), and comprises a pushing member (301), comprising a pushing plate (301a), a pushing block (301b), a pushing frame (301c), a rotating rod (301d), a gear (301e) and a rack (301f), wherein the pushing plate (301a) is arranged on one side of the closing member (201), the pushing block (301b) is fixed to the top of the pushing plate (301a), the pushing frame (301c) is hinged to the top of the pushing block (301b), the rotating rod (301d) is hinged to one end of the pushing frame (301c), the gear (301e) is fixed to one side of the rotating rod (301d), the rack (301f) is located at the bottom of the gear (301e), and the gear (301e) and the rack (301f) are meshed.

2. The lithium battery sealing test device according to claim 1, characterized in that: The closing assembly (200) further comprises a support member (202), which is arranged on the closing door (201a); a rotating plate (202a) is fixed on one side of the closing door (201a); a curved surface block (202b) is arranged on one side of the rotating plate (202a); the rotating plate (202a) and the curved surface block (202b) are hinged; a positioning plate (202c) is arranged on one side of the curved surface block (202b); the positioning plate (202c) and the curved surface block (202b) are hinged.

3. The lithium battery sealing test device according to claim 2, characterized in that: A first spring (202d) is fixed on one side of the arc surface block (202b), a support plate (202e) is fixed on one end of the first spring (202d), the support plate (202e) is fixed to the top of the positioning plate (202c), and a baffle (202f) is fixed to the top of the positioning plate (202c).

4. The lithium battery sealing test device according to claim 3, characterized in that: A shifting bar (202g) is fixed to one side of the limit block (201d), a protective cover (202h) is sleeved on the outer side of the shifting bar (202g), the shifting bar (202g) and the protective cover (202h) are movably connected, a first pulley (202i) is sleeved on the outer side of the rotating column (201b), a belt (202j) is sleeved on the outer side of the first pulley (202i), and a second pulley (202k) is arranged inside the belt (202j).

5. The lithium battery sealing test device according to claim 4, characterized in that: The pushing assembly (300) also includes a movable part (302) which is arranged on the second pulley (202k); a movable rod (302a) is fixed to one side of the second pulley (202k); an extrusion rod (302b) is arranged at one end of the movable rod (302a); the extrusion rod (302b) is hinged to one end of the movable rod (302a); the extrusion rod (302b) is hinged to one end of the rack (301f); and a protective plate (302c) is arranged on one side of the extrusion rod (302b).

6. The lithium battery sealing test device according to claim 4 or 5, characterized in that: A slider (302d) is fixed at the bottom of the rack (301f), a positioning bar (302e) is inserted into one side of the slider (302d), the slider (302d) and the positioning bar (302e) are movably connected, and a second spring (302f) is fixed to one side of the slider (302d).

7. The lithium battery sealing test device according to claim 6, characterized in that: A pulley (302g) is provided at one end of the rack (301f), a connecting rod (302h) is sleeved on the outside of the pulley (302g), the pulley (302g) and the connecting rod (302h) are hinged, and the connecting rod (302h) is fixed to one end of the rack (301f).

8. The lithium battery sealing test device according to claim 7, characterized in that: A sliding frame (302i) is sleeved on the outside of the pulley (302g), and the pulley (302g) slides in the sliding frame (302i). A positioning block (302j) is sleeved on the outside of the rotating rod (301d), and the positioning block (302j) and the rotating rod (301d) are rotatably connected via a rotating shaft.

9. The lithium battery sealing test device according to claim 7 or 8, characterized in that: It also includes a main body component (100) which is arranged on the push plate (301a) and includes a detection platform (101) and a testing machine (102); the detection platform (101) is fixed to one side of the push plate (301a), and the testing machine (102) is sleeved on the outside of the detection platform (101).

10. The lithium battery sealing test device according to claim 9, characterized in that: A base (103) is fixed at the bottom of the testing machine (102).

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