Device and method for detecting sealing performance of pole of energy storage battery

Abstract

The invention relates to the technical field of storage batteries, and provides an energy storage battery pole sealing performance detection device and method.The energy storage battery pole sealing performance detection device comprises a control machine, an air cylinder is fixedly connected to the top of the control machine, a sliding rod is slidably connected into the air cylinder, and a connecting plate is fixedly connected to the bottom of the sliding rod; limiting rods are fixedly connected to the two sides of the top of the connecting plate, a display machine body is arranged on one side of the exterior of the control machine, a detection mechanism is arranged at the bottom of the connecting plate, a power line is fixedly connected between the control machine and the display machine body, a connecting piece is fixedly connected to one side of the top of the control machine, and a barometer is fixedly connected to one side of the connecting piece. A communicating pipe is fixedly connected between the connecting piece and the shell; and the detection mechanism comprises a shell, the shell is fixedly connected to the interior of the control machine, and a plurality of supporting plates are fixedly connected to the exterior of the shell. By means of the technical scheme, the problem that in the prior art, sealing detection cannot be conveniently carried out on pole columns of various specifications is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of storage batteries, and in particular to a device and method for detecting the sealing performance of a pole of an energy storage battery. Background Art

[0002] A battery is a device that converts chemical energy directly into electrical energy. It is a battery designed to be rechargeable and rechargeable through a reversible chemical reaction. It usually refers to a lead-acid battery, which is a type of battery and belongs to a secondary battery. Its working principle: when charging, it uses external electrical energy to regenerate the internal active substances and store the electrical energy as chemical energy. When it needs to be discharged, the chemical energy is converted into electrical energy again for output. In the production process of batteries, it is inevitable to connect poles. Pole: A component that is directly connected to the bus at one end and connected to an external conductor at the other end (also called a terminal in this case), or connected to one pole of an adjacent single cell in the battery pack.

[0003] The patent specification with the announcement number CN209513167U discloses a device for detecting the sealing performance of a pole of an energy storage battery. A cylinder (2) connected to a control valve pressure gauge (12) is fixed on a lower crossbeam (301) of a bracket sliding rod (3). The telescopic rod (201) of the cylinder (2) is vertically upward, and a top platform (14) is arranged on the top of the telescopic rod (201). A sealing head limiting rod (5) is vertically fixed downward at a position opposite to the top platform (14) on the upper crossbeam (302) of the bracket sliding rod (3). The lower surface of the sealing head limiting rod (5) is connected to a compressed air pump detection mechanism (7) through an air pipe display body (6). A pressure gauge support mechanism (8) and a stop valve limiting mechanism (9) are also installed on the air pipe display body (6). The stop valve limiting mechanism (9) is located between the compressed air pump detection mechanism (7) and the pressure gauge support mechanism (8). The device and method can effectively test and determine whether the quality of the sealant meets the standards, and can also find out the real cause of the acid corrosion of the terminal, effectively solve the problem of acid corrosion of the terminal, and reduce production costs.

[0004] However, in the implementation of relevant technologies, it was found that the above technical solution has the following problems: since the sizes of poles in practice are different, the above device is not convenient for sealing inspection of poles of different specifications during use, and the single shape will cause inconvenience and limitations during inspection. When poles of various specifications need to be sealed, dedicated equipment is required to operate, which increases enterprise costs. Therefore, further improvement is needed. Summary of the invention

[0005] The present invention provides a device and method for detecting the sealing performance of a pole of an energy storage battery, which solves the problem in the related art that it is inconvenient to perform sealing detection on poles of various specifications.

[0006] The technical solution of the present invention is as follows: A device and method for detecting the sealing performance of a pole of an energy storage battery, comprising a control machine, a cylinder fixedly connected to the top of the control machine, a sliding rod slidably connected inside the cylinder, a connecting plate fixedly connected to the bottom of the sliding rod, limit rods fixedly connected to both sides of the top of the connecting plate, a display body provided on one side of the outside of the control machine, a detection mechanism provided at the bottom of the connecting plate, a power line fixedly connected between the control machine and the display body, a connecting piece fixedly connected to one side of the top of the control machine, a pressure gauge fixedly connected to one side of the connecting piece, and a connecting pipe fixedly connected between the connecting piece and the housing; The detection mechanism includes a shell, the shell is fixedly connected to the inside of the control machine, a plurality of support plates are fixedly connected to the outside of the shell, blocking grooves are opened on both sides of the inside of the shell, two blocking blocks are slidably connected inside the two blocking grooves, and the tops of the two blocking blocks are fixedly connected with an adapter frame, a connecting shell is provided at the bottom of the connecting plate, an air pressure sensor is fixedly connected inside the connecting shell, a cover shell is provided outside the air pressure sensor, two mounting plates are fixedly installed on both sides of the outside of the connecting shell, and top plates are fixedly connected to the tops of the two mounting plates; Support mechanisms are provided on both sides of the outside of the connecting shell, and the support mechanisms include a fixed plate, the fixed plate is located on one side of the bottom of the connecting plate, a rotating rod is connected to the inside of the fixed plate through a bearing, a rotating plate is fixedly connected to the outside of the rotating rod, a bottom plate is fixedly connected to one side of the bottom of the rotating plate, springs are fixedly connected on both sides of the top of the bottom plate, and positioning plates are fixedly connected to the tops of the two rotating plates.

[0007] Preferably, the two limit rods respectively penetrate both sides of the control machine and contact the latter, one side of the bottom of the connecting plate is fixedly connected to the limit plate, and one side of the limit plate contacts the outer side of the connecting shell.

[0008] Preferably, the air pressure sensor is electrically connected to the display body, and the cross-sectional area of ​​the connecting shell is larger than the cross-sectional area of ​​the shell.

[0009] Preferably, the top of the cover shell is fixedly connected to the inside of the connecting shell, and the cover shell covers the outside of the air pressure sensor.

[0010] Preferably, the top of the top plate contacts one side of the bottom of the connecting plate, the top of the fixing plate is fixedly connected to one side of the bottom of the connecting plate, and the tops of the two springs are fixedly connected to both sides of the bottom of the connecting plate respectively.

[0011] Preferably, the tops of the two positioning plates are respectively in contact with the bottoms of the two top plates, the rotating plate is shaped as an oblique L shape, a plate body is embedded on one side of the bottom of the two rotating plates, and a connecting rod is fixedly connected to one side of the two plate bodies.

[0012] Preferably, both sides of the bottom of the connecting plate are provided with limiting mechanisms, and the limiting mechanisms include a clamping plate, and the clamping plate is connected to the top of the connecting plate by bolts.

[0013] Preferably, a column is fixedly connected to the bottom of the clamping plate, and a round shell is fixedly connected to the bottom of the column.

[0014] Preferably, a blocking rod is provided inside the circular shell, the blocking rod is connected to the circular shell via a damping bearing, the blocking rod is configured to be L-shaped, and the blocking rod is located at the bottom of the connecting rod.

[0015] According to any one of the claims, a method for detecting the sealing performance of an energy storage battery pole is characterized in that it comprises the following steps: S1: When it is necessary to inspect the battery pole, the staff first needs to open the cylinder. After the cylinder is turned on, it will control the sliding rod to move downward. During the movement of the sliding rod, the connecting plate will be driven to move synchronously. During the movement of the connecting plate, the connecting shell and the cover shell will be driven to move downward synchronously. When the cover shell moves to contact the gasket at the bottom of the battery pole, the connection port on one side of the connector is connected to the external gas injection equipment. S2: When the connecting shell covers the outside of the shell to form a closed chamber, the gas injection device is turned on. At this time, the gas injection device will inject air into the inside of the connector. When the connector is guided by the gas injection, the gas will be transmitted to the inside of the shell and the connecting shell through the connecting pipe, thereby testing the battery pole; S3: When the battery pole is in good sealing condition, the display body will make a corresponding display to remind the staff that there is no problem. If there is a gap between the battery pole and the gasket, resulting in poor sealing, the gas will penetrate into the inside of the cover. At this time, due to the change in air pressure inside the cover, the air pressure sensor will receive a signal, and then the display body will display that the sealing is unqualified to ensure the accuracy of the detection.

[0016] The working principle and beneficial effects of the present invention are: In the present invention, the adapter frame is pushed, and the adapter frame will synchronously drive the blocking block to move during the pushing process. When the distance between the two adapter frames is appropriate, the staff can place the battery pole with the gasket inside the two adapter frames, which is convenient and flexible to support gaskets of different specifications, thus solving the problem of inconvenience in sealing detection of poles of various specifications.

[0017] In the present invention, the connecting rod is pushed downward, and the connecting rod will synchronously drive the plate body to move during the movement, and the plate body will synchronously drive the rotating plate and the positioning plate to rotate simultaneously during the movement. At the same time, the rotating plate will drive the bottom plate to rotate and the spring to compress during the rotation, and the positioning plate will gradually leave the bottom of the top plate during the rotation. Battery poles of different specifications can be detected through covers of different specifications, avoiding the limitations and singleness of existing devices when a single mold is often used to detect corresponding battery poles during use.

[0018] In the present invention, after the blocking rod is rotated to 180 degrees, the connecting rod is rotated to the bottom of the blocking rod, and then the staff rotates the blocking rod 180 degrees to reset it. At this time, the spring stretches and rebounds to drive the bottom plate and the rotating plate to rotate. During the rotation process, the rotating plate will synchronously drive the plate body and the connecting rod to rotate. When one side of the connecting rod contacts the bottom of the blocking rod, the connecting rod will be limited, thereby ensuring convenience during replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a rear view schematic diagram of the overall structure of the present invention; Figure 3 It is a partial structural diagram of the present invention. Figure 1 ; Figure 4 For the present invention Figure 3 Schematic diagram of partial structural separation in ; Figure 5 It is a schematic diagram of some structures in the present invention Figure 2 ; Figure 6 For the present invention Figure 5 Schematic diagram of partial structural separation in ; Figure 7 For the present invention Figure 6 Enlarged view of point A in .

[0021] In the figure: 1. control machine; 2. cylinder; 3. sliding rod; 4. connecting plate; 5. limiting rod; 6. display body; 7. detection mechanism; 701. shell; 702. support plate; 703. blocking groove; 704. blocking block; 705. adapter frame; 706. limiting plate; 707. connecting shell; 708. cover shell; 709. air pressure sensor; 710. mounting plate; 711. top plate; 8. supporting mechanism; 801. fixing plate; 802. rotating rod; 803. rotating plate; 804. bottom plate; 805. spring; 806. positioning plate; 807. plate body; 808. connecting rod; 9. limiting mechanism; 901. card plate; 902. column; 903. round shell; 904. blocking rod; 10. power cord; 11. connecting piece; 12. barometer; 13. connecting pipe. DETAILED DESCRIPTION

[0022] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention. Example 1

[0023] like Figure 1 to Figure 6 As shown, this embodiment proposes a device and method for detecting the sealing performance of a pole of an energy storage battery, including a control machine 1, a cylinder 2 is fixedly connected to the top of the control machine 1, a sliding rod 3 is slidably connected inside the cylinder 2, a connecting plate 4 is fixedly connected to the bottom of the sliding rod 3, both sides of the top of the connecting plate 4 are fixedly connected to limit rods 5, a display body 6 is provided on one side of the outside of the control machine 1, a detection mechanism 7 is provided at the bottom of the connecting plate 4, a power line 10 is fixedly connected between the control machine 1 and the display body 6, a connecting piece 11 is fixedly connected to one side of the top of the control machine 1, a pressure gauge 12 is fixedly connected to one side of the connecting piece 11, and a connecting pipe 13 is fixedly connected between the connecting piece 11 and the housing 701; The detection mechanism 7 includes a shell 701, which is fixedly connected to the inside of the control machine 1. A plurality of support plates 702 are fixedly connected to the outside of the shell 701. Blocking grooves 703 are provided on both sides of the inside of the shell 701. Two blocking blocks 704 are slidably connected inside the two blocking grooves 703. An adapter frame 705 is fixedly connected to the top of the two blocking blocks 704. A connecting shell 707 is provided at the bottom of the connecting plate 4. An air pressure sensor 709 is fixedly connected inside the connecting shell 707. A cover shell 708 is provided outside the air pressure sensor 709. Two mounting plates 710 are fixedly installed on both sides of the outside of the connecting shell 707. A top plate 711 is fixedly connected to the top of the two mounting plates 710.

[0024] In this embodiment, the two limit rods 5 respectively pass through the two sides of the control machine 1 and contact the latter. One side of the bottom of the connecting plate 4 is fixedly connected to the limit plate 706. One side of the limit plate 706 contacts the outer side of the connecting shell 707, which can facilitate the limit plate 706 to limit the connecting shell 707.

[0025] In this embodiment, the air pressure sensor 709 is electrically connected to the display body 6 , and the cross-sectional area of ​​the connection shell 707 is larger than the cross-sectional area of ​​the housing 701 , so that the connection shell 707 can cover the outside of the housing 701 easily.

[0026] In this embodiment, the top of the cover shell 708 is fixedly connected to the inside of the connecting shell 707, and the cover shell 708 covers the outside of the air pressure sensor 709, which makes it easy for the cover shell 708 to collect the leaked gas.

[0027] During use, when it is necessary to test the sealing performance of the battery pole, the staff first needs to push the adapter frame 705. The adapter frame 705 will synchronously drive the blocking block 704 to move during the pushing process. When the distance between the two adapter frames 705 is appropriate, the staff can place the battery pole with the gasket inside the two adapter frames 705, which is convenient for flexible support of the gasket. Then the staff turns on the cylinder 2. After turning on the cylinder 2, the sliding rod 3 will control the downward movement of the sliding rod 3. During the movement, the connecting plate 4 will synchronously drive the connecting shell 707 and The cover shell 708 moves downward. When the cover shell 708 moves to contact the gasket at the bottom of the battery pole, the connecting shell 707 will contact the top of the support plate 702 and cover the outside of the shell 701 to form a closed chamber. During this process, the cover shell 708 will cover the outside of the battery pole. Then the staff connects to the external gas injection equipment through the connection port on one side of the connector 11 and turns on the gas injection equipment. At this time, the gas injection equipment will inject air into the interior of the connector 11. When the connector 11 is guided by the gas injection, it will transmit the gas to the inside of the shell 701 and the connecting shell 707 through the connecting pipe 13, so as to test the battery pole. When the battery pole is in good sealing condition, the display body 6 will make a corresponding display to remind the staff that there is no problem. If there is a gap between the battery pole and the gasket, resulting in poor sealing, the gas will penetrate into the interior of the cover 708. At this time, due to the change in air pressure inside the cover 708, the air pressure sensor 709 will receive a signal, and then the display body 6 will display that the sealing is unqualified to ensure the accuracy of the detection. Example 2

[0028] like Figure 5~Figure 6As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that support mechanisms 8 are provided on both sides of the outside of the connecting shell 707, and the support mechanism 8 includes a fixed plate 801, and the fixed plate 801 is located on one side of the bottom of the connecting plate 4. The fixed plate 801 is internally connected with a rotating rod 802 through a bearing, and the rotating rod 802 is externally fixedly connected with a rotating plate 803, and one side of the bottom of the rotating plate 803 is fixedly connected with a bottom plate 804, and both sides of the top of the bottom plate 804 are fixedly connected with springs 805, and the tops of the two rotating plates 803 are fixedly connected with positioning plates 806, which can facilitate the fixing of the positioning plates 806.

[0029] In this embodiment, the top of the top plate 711 contacts one side of the bottom of the connecting plate 4, the top side of the fixed plate 801 is fixedly connected to one side of the bottom of the connecting plate 4, and the tops of the two springs 805 are respectively fixedly connected to the two sides of the bottom of the connecting plate 4, which can facilitate the deformation work of the springs 805.

[0030] In this embodiment, the tops of the two positioning plates 806 are respectively in contact with the bottoms of the two top plates 711, and the rotating plate 803 is shaped as an oblique L shape. A plate body 807 is embedded on one side of the bottom of the two rotating plates 803, and a connecting rod 808 is fixedly connected to one side of the two plate bodies 807 to facilitate the fixation of the connecting rod 808.

[0031] During use, when it is necessary to detect battery poles of different specifications, the staff needs to push the connecting rod 808 downward. The connecting rod 808 will synchronously drive the plate body 807 to move during the movement. The plate body 807 will synchronously drive the rotating plate 803 and the positioning plate 806 to rotate at the same time. At the same time, the rotating plate 803 will drive the bottom plate 804 to rotate and the spring 805 to compress during the rotation. The positioning plate 806 will gradually leave the bottom of the top plate 711 during the rotation. Then the staff can move and take out the connecting shell 707. The connecting shell 707 will synchronously drive the mounting plate 710 and the top plate 711 to move during the movement. At the same time, the cover shell 708 and the air pressure sensor 709 will also move, thereby achieving the effect of replacing the detection mold. Battery poles of different specifications can be detected through cover shells 708 of different specifications, avoiding the limitations and singleness of the existing device when a single mold is often used to detect the corresponding battery poles during use. Example 3

[0032] like Figure 7 As shown, based on the same concept as the above-mentioned embodiment 2, this embodiment also proposes that limiting mechanisms 9 are provided on both sides of the bottom of the connecting plate 4, and the limiting mechanism 9 includes a clamping plate 901, and the clamping plate 901 is connected to the top of the connecting plate 4 by bolts, which can facilitate the fixing of the clamping plate 901.

[0033] In this embodiment, a column 902 is fixedly connected to the bottom of the clamping plate 901 , and a round shell 903 is fixedly connected to the bottom of the column 902 , which can facilitate the fixed connection of the column 902 .

[0034] In this embodiment, a blocking rod 904 is provided inside the circular shell 903. The blocking rod 904 is connected to the circular shell 903 via a damping bearing. The blocking rod 904 is shaped as an L shape. The blocking rod 904 is located at the bottom of the connecting rod 808, which makes it easy for the blocking rod 904 to block the connecting rod 808.

[0035] A method for detecting the sealing performance of an energy storage battery pole comprises the following steps: S1: When it is necessary to inspect the battery pole, the staff first needs to open the cylinder 2. After opening, the cylinder 2 will control the sliding rod 3 to move downward. The sliding rod 3 will synchronously drive the connecting plate 4 to move during the movement. The connecting plate 4 will synchronously drive the connecting shell 707 and the cover shell 708 to move downward during the movement. When the cover shell 708 moves to contact the gasket at the bottom of the battery pole, the connecting port on one side of the connecting piece 11 is connected to the external gas injection equipment. S2: When the connecting shell 707 covers the outside of the shell 701 to form a closed chamber, the gas injection device is turned on. At this time, the gas injection device will inject air into the inside of the connecting piece 11. When the connecting piece 11 is guided by the gas injection, the gas will be transmitted to the inside of the shell 701 and the connecting shell 707 through the connecting pipe 13, so as to test the battery pole; S3: When the battery pole is in good sealing condition, the display body 6 will make a corresponding display to remind the staff that there is no problem. If there is a gap between the battery pole and the gasket, resulting in poor sealing, the gas will penetrate into the interior of the cover 708. At this time, due to the change in air pressure inside the cover 708, the air pressure sensor 709 will receive a signal, and then the display body 6 will display that the sealing is unqualified to ensure the accuracy of the detection.

[0036] When in use, in order to ensure the convenience of replacing the connecting shell 707, the staff can first rotate the blocking rod 904. When the blocking rod 904 is rotated to 180 degrees, the connecting rod 808 is rotated to the bottom of the blocking rod 904. Then the staff can rotate the blocking rod 904 180 degrees to reset it. At this time, the spring 805 stretches and rebounds to drive the bottom plate 804 and the rotating plate 803 to rotate. The rotating plate 803 will synchronously drive the plate body 807 and the connecting rod 808 to rotate during the rotation process. When one side of the connecting rod 808 contacts the bottom of the blocking rod 904, the connecting rod 808 will be limited, and then There will be a certain distance between the positioning plate 806 and the bottom of the connecting plate 4. When the new connecting shell 707 moves to the bottom of the connecting plate 4, the limiting plate 706 will limit the connecting shell 707, and then the top plates 711 on both sides will be between the positioning plate 806 and the connecting plate 4. At this time, the staff will rotate the blocking rod 904 again, and then the spring 805 will stretch to drive the bottom plate 804 and the rotating plate 803 to reset and rotate. During the rotation process, the rotating plate 803 will synchronously drive the positioning plate 806 to clamp the top plate 711, thereby ensuring the convenience of replacement when testing pole molds of different specifications.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for detecting the sealing performance of a pole of an energy storage battery, comprising a control machine (1), characterized in that: The top of the control machine (1) is fixedly connected to a cylinder (2), the inside of the cylinder (2) is slidably connected to a sliding rod (3), the bottom of the sliding rod (3) is fixedly connected to a connecting plate (4), both sides of the top of the connecting plate (4) are fixedly connected to limit rods (5), one side of the outside of the control machine (1) is provided with a display body (6), the bottom of the connecting plate (4) is provided with a detection mechanism (7), a power line (10) is fixedly connected between the control machine (1) and the display body (6), one side of the top of the control machine (1) is fixedly connected to a connecting piece (11), one side of the connecting piece (11) is fixedly connected to a pressure gauge (12), and a connecting pipe (13) is fixedly connected between the connecting piece (11) and the housing (701); The detection mechanism (7) comprises a shell (701), wherein the shell (701) is fixedly connected to the inside of the control machine (1), and a plurality of support plates (702) are fixedly connected to the outside of the shell (701), blocking grooves (703) are provided on both sides of the inside of the shell (701), and two blocking blocks (704) are slidably connected to the inside of the two blocking grooves (703), and the tops of the two blocking blocks (704) are fixedly connected to an adapter frame (705), and a connecting shell (707) is provided at the bottom of the connecting plate (4), and an air pressure sensor (709) is fixedly connected to the inside of the connecting shell (707), and a cover shell (708) is provided on the outside of the air pressure sensor (709), and two mounting plates (710) are fixedly installed on both sides of the outside of the connecting shell (707), and the tops of the two mounting plates (710) are fixedly connected to a top plate (711); Support mechanisms (8) are provided on both sides of the outside of the connecting shell (707), and the support mechanisms (8) include a fixed plate (801), the fixed plate (801) is located at one side of the bottom of the connecting plate (4), the fixed plate (801) is internally connected to a rotating rod (802) via a bearing, the rotating rod (802) is externally fixedly connected to a rotating plate (803), one side of the bottom of the rotating plate (803) is fixedly connected to a bottom plate (804), both sides of the top of the bottom plate (804) are fixedly connected to springs (805), and the tops of the two rotating plates (803) are fixedly connected to positioning plates (806).

2. The energy storage battery pole sealing performance detection device according to claim 1 is characterized in that: The two limit rods (5) respectively penetrate the two sides of the control machine (1) and contact the latter, one side of the bottom of the connection plate (4) is fixedly connected to the limit plate (706), and one side of the limit plate (706) contacts the outer side of the connection shell (707).

3. The energy storage battery pole sealing performance detection device according to claim 1, characterized in that: The air pressure sensor (709) is electrically connected to the display body (6), and the cross-sectional area of ​​the connecting shell (707) is greater than the cross-sectional area of ​​the shell (701).

4. The energy storage battery pole sealing performance detection device according to claim 1, characterized in that: The top of the cover shell (708) is fixedly connected to the inside of the connecting shell (707), and the cover shell (708) covers the outside of the air pressure sensor (709).

5. The energy storage battery pole sealing performance detection device according to claim 1, characterized in that: The top of the top plate (711) contacts one side of the bottom of the connecting plate (4), the top of the fixing plate (801) is fixedly connected to one side of the bottom of the connecting plate (4), and the tops of the two springs (805) are respectively fixedly connected to two sides of the bottom of the connecting plate (4).

6. The energy storage battery pole sealing performance detection device according to claim 1, characterized in that: The tops of the two positioning plates (806) are in contact with the bottoms of the two top plates (711) respectively; the shape of the rotating plate (803) is set to be an oblique L shape; a plate body (807) is embedded on one side of the bottom of the two rotating plates (803); and a connecting rod (808) is fixedly connected to one side of the two plate bodies (807).

7. The energy storage battery pole sealing performance detection device according to claim 6, characterized in that: Limiting mechanisms (9) are provided on both sides of the bottom of the connecting plate (4), and the limiting mechanisms (9) include a clamping plate (901), and the clamping plate (901) is connected to the top of the connecting plate (4) by bolts.

8. The energy storage battery pole sealing performance detection device according to claim 7, characterized in that: The bottom of the clamping plate (901) is fixedly connected to a column (902), and the bottom of the column (902) is fixedly connected to a round shell (903).

9. The energy storage battery pole sealing performance detection device according to claim 8, characterized in that: A blocking rod (904) is provided inside the circular shell (903); the blocking rod (904) and the circular shell (903) are connected via a damping bearing; the blocking rod (904) is configured to be L-shaped; and the blocking rod (904) is located at the bottom of the connecting rod (808).

10. A method for detecting the sealing performance of an energy storage battery pole according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: When it is necessary to inspect the battery pole, the staff first needs to open the cylinder (2). After the cylinder (2) is opened, it controls the sliding rod (3) to move downward. During the movement of the sliding rod (3), it simultaneously drives the connecting plate (4) to move. During the movement of the connecting plate (4), it simultaneously drives the connecting shell (707) and the cover shell (708) to move downward. When the cover shell (708) moves to contact the gasket at the bottom of the battery pole, the connection port on one side of the connecting piece (11) is connected to the external gas injection equipment. S2: When the connecting shell (707) covers the outside of the shell (701) to form a closed chamber, the gas injection device is turned on. At this time, the gas injection device will inject air into the interior of the connecting piece (11). When the connecting piece (11) is guided by the gas injection, the gas will be transmitted to the interior of the shell (701) and the connecting shell (707) through the connecting pipe (13), thereby testing the battery pole; S3: When the battery pole is in good sealing condition, the display body (6) will display accordingly to remind the staff that there is no problem. If there is a gap between the battery pole and the gasket, resulting in poor sealing, the gas will penetrate into the inside of the cover (708). At this time, due to the change in air pressure inside the cover (708), the air pressure sensor (709) will receive a signal, and then the display body (6) will display that the sealing is unqualified to ensure the accuracy of the detection.

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