Lithium battery puncture detection device

Abstract

The utility model discloses a lithium battery puncture detection device which comprises a needling machine body, a detection table is fixedly connected to the middle of the bottom inside the needling machine body, trapezoidal round-edge supporting pieces are arranged at the upper end of the detection table in a bilateral symmetry mode, and U-shaped connecting pieces are fixedly connected between the front ends and the rear ends of the trapezoidal round-edge supporting pieces. First bearing seats are fixedly connected to the middle positions of the upper ends of the U-shaped connecting pieces, a two-way lead screw penetrates through the first bearing seats and is in threaded connection with the first bearing seats, a worm gear is fixedly connected to the middle position of the two-way lead screw in a sleeving mode, a worm is connected to the upper end of the worm gear in a meshed mode, and a rotating wheel is fixedly connected to the front end of the worm. According to the utility model, the distance between the two groups of trapezoidal round-edge supporting pieces can be adjusted, and the round lithium battery is placed on the cambered surface between the trapezoidal round-edge supporting pieces after the distance is adjusted to a proper distance, so that the limiting and fixing effects are achieved, the deviation condition of the round lithium battery when the round lithium battery is stressed is prevented, and normal puncture detection can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of acupuncture devices, in particular to a lithium battery puncture detection device. Background Art

[0002] In order to ensure the safety of users, after the lithium battery is produced and before it reaches the hands of consumers, a series of tests are required to ensure the safety of the battery and reduce safety hazards. One of them is a needle puncture test, which is to place the fully charged battery on a plane and puncture the battery radially with a steel needle with a diameter of about 3mm, and the battery does not catch fire or explode. Most of the needle puncture machines currently used are simple in structure and can only perform needle puncture tests on relatively regular rectangular lithium batteries. They cannot position circular lithium batteries well, and generally do not need to fix the lithium battery to avoid affecting the test data of the lithium battery. In addition, when the steel needle is retracted, it often takes the lithium battery with it and cannot be separated from the lithium battery well. It requires manual handling by the staff, which poses certain safety risks and is relatively troublesome. For this reason, we propose a lithium battery puncture detection device to solve the above problems. Utility Model Content

[0003] The main purpose of the utility model is to provide a lithium battery puncture detection device, which can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a lithium battery puncture detection device, comprising a needling machine body, a detection platform is fixedly connected to the middle of the inner bottom of the needling machine body, a trapezoidal round-edge support is symmetrically arranged on the upper end of the detection platform, a U-shaped connecting piece is fixedly connected between the front and rear ends of the trapezoidal round-edge support, a first bearing seat is fixedly connected to the middle of the upper end of the U-shaped connecting piece, a bidirectional screw rod passes through and is threadedly connected between the first bearing seats, a worm gear is fixedly sleeved in the middle position of the bidirectional screw rod, a worm gear is meshedly connected to the upper end of the worm gear, a rotating wheel is fixedly connected to the front end of the worm gear, and a hydraulic puncture mechanism is fixedly installed in the middle of the inner top of the needling machine body.

[0005] Preferably, a slide groove is provided in the middle of the front and rear ends of the detection platform, and the front and rear ends of the U-shaped connector are fixedly sleeved with a slide sleeve near the upper side, and one end of the slide sleeve is slidably connected to the inside of the slide groove.

[0006] Preferably, the outer side of the bidirectional screw rod is fixedly sleeved with a second bearing seat near the left and right ends, and the second bearing seat is fixedly connected to the detection platform.

[0007] Preferably, a third bearing seat is fixedly sleeved on the outer side of the worm near the front and rear ends, and the third bearing seat is fixedly connected to the detection platform.

[0008] Preferably, the lower output end of the hydraulic puncture mechanism is fixedly sleeved with a fixed plate, the lower end of the fixed plate is fixedly connected with a slide cylinder near the four corners, the lower end of the slide cylinder is slidably connected with a slide rod, and a disengagement spring is arranged between the inner top of the slide cylinder and the slide rod.

[0009] Preferably, a detachment plate is fixedly connected between the lower ends of the slide rods, the detachment plate is located at the lower side of the puncture needle, a puncture hole is provided in the middle of the detachment plate, and the aperture of the puncture hole is larger than the diameter of the puncture needle.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1. By rotating the rotating wheel, the worm can be driven to rotate, and finally the trapezoidal round-edge support can be driven to move, thereby achieving the purpose of adjusting the distance between the two sets of trapezoidal round-edge support members. After the distance is adjusted to a suitable distance, the round lithium battery is placed on the arc surface between the trapezoidal round-edge support members, achieving the role of limiting and fixing, preventing the round lithium battery from shifting when subjected to force, and ensuring that the puncture detection can be carried out normally.

[0012] 2. When the steel needle is driven to rise by the hydraulic puncture mechanism after puncture, the detachment plate can still maintain a pressure on the lithium battery, preventing the lithium battery from rising with the steel needle. When the steel needle is separated from it, the detachment plate and other structures rise synchronously with the hydraulic puncture mechanism, avoiding the need for staff to manually separate the lithium battery, thus ensuring the personal safety of the staff. It is simple, practical and more humane. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of a lithium battery puncture detection device of the utility model;

[0014] Figure 2 This is a partial cross-sectional structural schematic diagram of a lithium battery puncture detection device of the utility model;

[0015] Figure 3 This is a partial cross-sectional structural schematic diagram of a lithium battery puncture detection device of the utility model;

[0016] Figure 4 The utility model is a partial cross-sectional structural schematic diagram of a lithium battery puncture detection device.

[0017] In the figure: 1. acupuncture machine body; 2. testing table; 3. trapezoidal round edge support; 4. U-shaped connecting piece; 5. sliding sleeve; 6. sliding groove; 7. first bearing seat; 8. bidirectional screw rod; 9. second bearing seat; 10. worm gear; 11. worm; 12. third bearing seat; 13. rotating wheel; 14. hydraulic puncture mechanism; 15. fixing plate; 16. sliding cylinder; 17. sliding rod; 18. disengagement spring; 19. disengagement plate; 20. puncture hole. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] like Figure 1-Figure 4 As shown, a lithium battery puncture detection device comprises a needle needle machine body 1, a detection platform 2 is fixedly connected to the middle of the inner bottom of the needle needle machine body 1, a trapezoidal round-edge support member 3 is symmetrically arranged on the upper end of the detection platform 2, a U-shaped connecting member 4 is fixedly connected between the front and rear ends of the trapezoidal round-edge support member 3, a first bearing seat 7 is fixedly connected to the middle of the upper end of the U-shaped connecting member 4, a bidirectional screw rod 8 passes through and is threadedly connected between the first bearing seats 7, a worm gear 10 is fixedly sleeved in the middle position of the bidirectional screw rod 8, a worm 11 is meshingly connected to the upper end of the worm gear 10, a rotating wheel 13 is fixedly connected to the front end of the worm 11, and a hydraulic puncture mechanism 14 is fixedly installed in the middle of the inner top of the needle needle machine body 1.

[0020] A slide groove 6 is provided in the middle of the front and rear ends of the detection table 2, and a slide sleeve 5 is fixedly sleeved on the front and rear ends of the U-shaped connector 4 near the upper side, and one end of the slide sleeve 5 is slidably connected to the inside of the slide groove 6. By sliding one end of the slide sleeve 5 in the inside of the slide groove 6, the stability of the U-shaped connector 4 is improved, and the role of limiting support is played at the same time, thereby preventing the trapezoidal round edge support 3 from being subjected to excessive force and causing the U-shaped connector 4 to break.

[0021] The outer side of the bidirectional screw 8 is fixedly sleeved with a second bearing seat 9 near the left and right ends, and the second bearing seat 9 is fixedly connected to the detection platform 2. The outer side of the worm 11 is fixedly sleeved with a third bearing seat 12 near the front and rear ends, and the third bearing seat 12 is fixedly connected to the detection platform 2, ensuring the rationality of the structural design.

[0022] The lower output end of the hydraulic puncture mechanism 14 is fixedly sleeved with a fixing plate 15, and the lower end of the fixing plate 15 is fixedly connected with a slide cylinder 16 near the four corners, and the lower end of the slide cylinder 16 is slidably connected with a slide rod 17, and a disengagement spring 18 is arranged between the inner top of the slide cylinder 16 and the slide rod 17. In the process of opening the hydraulic puncture mechanism 14 to drive the steel needle to move downward to puncture the lithium battery, the disengagement plate 19 contacts the lithium battery first, and the disengagement spring 18 contracts under force, and at the same time applies a reaction force to the disengagement plate 19, so that the disengagement plate 19 can provide an adaptive fixing effect on the lithium battery. When the steel needle is driven to rise by the hydraulic puncture mechanism 14 after the puncture, the disengagement plate 19 can still maintain a pressing effect on the lithium battery, thereby avoiding the lithium battery from rising with the steel needle. When the steel needle is separated from it, the disengagement plate 19 and other structures rise synchronously with the hydraulic puncture mechanism 14, avoiding the situation where the staff needs to manually separate the lithium battery, thereby ensuring the personal safety of the staff and being more humane.

[0023] A detachment plate 19 is fixedly connected between the lower ends of the slide bar 17, and the detachment plate 19 is located at the lower side of the puncture needle. A puncture hole 20 is provided in the middle position of the detachment plate 19. The aperture of the puncture hole 20 is larger than the diameter of the puncture needle. The puncture hole 20 ensures that the steel needle can normally pass over the detachment plate 19 to move downward for puncture.

[0024] Working principle:

[0025] During use, since the upper end of the trapezoidal round-edge support member 3 is a flat plane, the square lithium battery can be directly placed on its upper end. The supporting effect of the trapezoidal round-edge support member 3 can also prevent the steel needle from directly piercing the test bench 2 and causing damage. When the round lithium battery needs to be tested, the worm 11 can be driven to rotate by rotating the rotating wheel 13, and the worm 11 can be driven to rotate by rotating the worm wheel 10, and the worm wheel 10 can be driven to rotate by rotating the bidirectional screw rod 8. The rotation of the bidirectional screw rod 8 can drive the two groups of U-shaped connecting members 4 to move symmetrically, and the U-shaped connecting member 4 can drive the trapezoidal round-edge support member 3 to move, thereby achieving the purpose of adjusting the spacing between the two groups of trapezoidal round-edge support members 3, and then after the spacing is adjusted to a suitable distance, the round lithium battery is placed on the arc surface between the trapezoidal round-edge support members 3, which achieves the effect of limiting and fixing, and prevents the round The situation where the lithium battery is offset when subjected to force ensures that the puncture detection can be carried out normally. Furthermore, by opening the hydraulic puncture mechanism 14 to drive the steel needle to move downward to puncture the lithium battery, the disengagement plate 19 contacts the lithium battery first, and the disengagement spring 18 contracts under force, and at the same time applies a reaction force to the disengagement plate 19, so that the lithium battery can be provided with an adaptive fixing effect through the disengagement plate 19. When the steel needle is driven to rise by the hydraulic puncture mechanism 14 after the puncture, the disengagement plate 19 can still maintain a pressing effect on the lithium battery, avoiding the lithium battery from rising with the steel needle. When the steel needle is separated from it, the disengagement plate 19 and other structures rise synchronously with the hydraulic puncture mechanism 14, avoiding the situation where the staff needs to manually separate the lithium battery, thereby ensuring the personal safety of the staff. It is simple, practical and more humane.

[0026] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A lithium battery puncture detection device, comprising a needle machine body (1), characterized in that: A detection platform (2) is fixedly connected to the middle of the bottom of the acupuncture machine body (1); a trapezoidal round-edged support member (3) is symmetrically arranged at the upper end of the detection platform (2); a U-shaped connecting member (4) is fixedly connected between the front and rear ends of the trapezoidal round-edged support member (3); a first bearing seat (7) is fixedly connected to the middle of the upper end of the U-shaped connecting member (4); a bidirectional screw rod (8) passes through and is threadedly connected between the first bearing seats (7); a worm wheel (10) is fixedly sleeved in the middle of the bidirectional screw rod (8); a worm (11) is meshedly connected to the upper end of the worm wheel (10); a rotating wheel (13) is fixedly connected to the front end of the worm (11); and a hydraulic puncture mechanism (14) is fixedly installed in the middle of the top of the acupuncture machine body (1).

2. A lithium battery puncture detection device according to claim 1, characterized in that: A slide groove (6) is provided in the middle of the front and rear ends of the detection platform (2), and a slide sleeve (5) is fixedly sleeved on the front and rear ends of the U-shaped connecting piece (4) near the upper side, and one end of the slide sleeve (5) is slidably connected to the inside of the slide groove (6).

3. A lithium battery puncture detection device according to claim 1, characterized in that: The outer side of the bidirectional screw rod (8) is fixedly sleeved with a second bearing seat (9) near the left and right ends, and the second bearing seat (9) is fixedly connected to the detection platform (2).

4. A lithium battery puncture detection device according to claim 1, characterized in that: The outer side of the worm (11) is fixedly sleeved with a third bearing seat (12) near the front and rear ends, and the third bearing seat (12) is fixedly connected to the detection platform (2).

5. A lithium battery puncture detection device according to claim 1, characterized in that: The lower output end of the hydraulic puncture mechanism (14) is fixedly sleeved with a fixed plate (15), the lower end of the fixed plate (15) is fixedly connected with a slide cylinder (16) near the four corners, the lower end of the slide cylinder (16) is slidably connected with a slide rod (17), and a disengagement spring (18) is provided between the inner top of the slide cylinder (16) and the slide rod (17).

6. A lithium battery puncture detection device according to claim 5, characterized in that: A detachment plate (19) is fixedly connected between the lower ends of the slide rod (17), and the detachment plate (19) is located at the lower side of the puncture needle. A puncture hole (20) is provided in the middle of the detachment plate (19), and the diameter of the puncture hole (20) is larger than the diameter of the puncture needle.

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