Buffer bolt for charging storage battery

Abstract

The utility model relates to the technical field of bolts, in particular to a buffer bolt for charging a storage battery, which comprises a bolt handle, a mounting mechanism comprises a fixing plate, a first spring and an inserting plate, the end part of the fixing plate is clamped in a fixing groove, and a tool is used for pulling a limiting plate to drive the inserting plate so as to release the connection between the inserting plate and an open hole. The two fixing plates are not limited by the inserting plates, the fixing plates move and reset under the action of the first springs to be disconnected from the fixing grooves, the bolt handle is pulled to be disconnected from the threaded barrel, and at the moment, the threaded barrel can be pressed to be shrunk to be disconnected from the nut; according to the invention, dangerous factors such as sparks and chippings are eliminated fundamentally, the explosion risk caused by flammable and explosive gases such as hydrogen released when the storage battery is charged due to ignition of the sparks is avoided, the life safety of maintenance personnel is guaranteed, meanwhile, accidental injury of a cutting tool to a storage battery terminal and peripheral precision parts is avoided, and the service life of the storage battery is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of bolt technology, and in particular to a buffer bolt for charging a storage battery. Background Technology

[0002] Battery charging buffer bolts are special bolts used to connect battery terminals to charging clips. They are mainly used in the acid charging process during battery production and have the following structure: The bolt shank is the basic load-bearing component of the buffer bolt and is usually made of high-strength metal materials, such as high-quality alloy steel or stainless steel; the threaded part is the key structure for connecting the buffer bolt to the nut and battery terminals. The threaded section is machined using high-precision cutting technology, resulting in a precise thread profile and uniform pitch, enabling a tight engagement with standard nuts.

[0003] During the charging process of a car battery, the reliability and safety of the connection between the battery and the charging equipment are crucial. Over long-term use, factors such as the thermal effect of the charging current and mechanical vibration can easily cause wear and stripping of the threads on threaded cylinders or nuts. When the threads are damaged, conventional repair methods often require destructive disassembly of the bolt and nut using cutting tools to disconnect them. During this process, the high-temperature sparks generated by the friction between the cutting tool and the metal can easily ignite flammable and explosive gases such as hydrogen released during battery charging, potentially causing a violent explosion. This not only damages the battery but also poses a serious threat to the lives of repair personnel. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a buffer bolt for battery charging. It solves the problem that when the threads are damaged, conventional repair methods often require destructive disassembly of the bolt using cutting tools to disconnect the bolt from the nut. In this process, the high-temperature sparks generated by the friction between the cutting tool and the metal can easily cause a violent explosion when they come into contact with flammable and explosive gases such as hydrogen released during battery charging. This not only damages the battery but also poses a serious threat to the lives of repair personnel.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A buffer bolt for charging a storage battery includes a bolt shank, a threaded cylinder on the outside of the bolt shank, an opening inside the bolt shank, and internal holes at both ends of the bolt shank corresponding to the opening, the internal holes communicating with the opening. The bolt shank is provided with an installation mechanism for installing the threaded cylinder. The installation mechanism includes a fixing plate, a first spring, and an insert plate. There are two fixing plates, which are slidably connected inside the internal holes and the opening. The two ends of the first spring are respectively fixedly connected to the adjacent sides of the two fixing plates. The insert plate is slidably connected inside the opening and is used to restrict the movement of the fixing plates.

[0007] The inner side of the threaded cylinder is provided with a fixing groove corresponding to each fixing plate. The end of the fixing plate is engaged inside the fixing groove and used to fix the position of the threaded cylinder. A limit plate is provided on the outside of the insert plate.

[0008] Preferably, a limiting groove is formed on the side of the bolt shank corresponding to the limiting plate. The limiting groove communicates with the interior of the opening. The limiting plate is slidably connected inside the limiting groove and is used to limit the movement of the insert plate. A moving groove is formed on the side of the insert plate corresponding to the limiting plate, and a through hole is formed on the side of the insert plate corresponding to the moving groove. The limiting plate is slidably connected inside the moving groove and enters the interior of the limiting groove through the through hole. A second spring is fixedly connected inside the moving groove, and the limiting plate is fixedly connected to the end of the second spring.

[0009] Preferably, a support shaft is fixedly installed inside the movable groove, a second spring is movably sleeved on the outside of the support shaft, and a limiting plate is slidably connected to the outside of the support shaft.

[0010] Preferably, a sealing plate for closing the moving groove is fixedly installed on the upper surface of the limiting plate.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. When any thread of the threaded cylinder or nut is damaged, use a tool to pull the limiting plate to move the insert plate, thus disengaging the insert plate from the opening. At this time, the two fixing plates are no longer restricted by the insert plate. Under the action of the first spring, the fixing plate moves back to its original position and disengages from the fixing groove. Then, pull the bolt handle to disengage the bolt handle from the threaded cylinder. Press the threaded cylinder to fold it down and disengage from the nut. This method eliminates the traditional cutting and disassembly method, removing dangerous factors such as sparks and debris from the source. It avoids the risk of explosion caused by sparks igniting flammable and explosive gases such as hydrogen released during battery charging, ensuring the safety of maintenance personnel. At the same time, it avoids accidental damage to the battery terminals and surrounding precision components by cutting tools, extending the battery's service life.

[0013] 2. When the insert plate is inserted into the opening, the limiting plate, under the action of the second spring, enters the interior of the limiting groove through the through hole. At this time, the insert plate is fixed. The double locking of the insert plate and the limiting plate, as well as the tight engagement between the fixing plate and the fixing groove, increases the stability of the connection between the threaded cylinder and the bolt handle, prevents loosening and falling off, and ensures the stability of current transmission between the battery and the charging equipment. Attached Figure Description

[0014] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This utility model Figure 1 Structural diagram of the threaded cylinder;

[0017] Figure 3 This utility model Figure 2 Cross-sectional view of the threaded cylinder;

[0018] Figure 4 This utility model Figure 3 Cross-sectional view of the middle insert plate;

[0019] Figure 5 This utility model Figure 4 Structural diagram of the middle limiting plate;

[0020] Figure 6 This utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0021] Legend: 1. Bolt shank; 2. Threaded cylinder; 3. Opening; 4. Internal hole; 5. Fixing plate; 6. First spring; 7. Insert plate; 8. Fixing groove; 9. Limiting plate; 10. Limiting groove; 11. Moving groove; 12. Through hole; 13. Second spring; 14. Support shaft; 15. Closing plate. Detailed Implementation

[0022] This application provides a buffer bolt for battery charging, which effectively solves the technical problem that when the thread is damaged, conventional maintenance methods often require the use of cutting tools to destructively disassemble the bolt to disconnect the connection between the bolt and the nut. In this process, the high-temperature sparks generated by the friction between the cutting tool and the metal can easily cause a violent explosion when they come into contact with flammable and explosive gases such as hydrogen released during battery charging. This not only damages the battery but also poses a serious threat to the life safety of maintenance personnel. Example

[0023] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the technical solution in this application effectively solves the problem that when the thread is damaged, conventional repair methods often require destructive disassembly of the bolt using cutting tools to disconnect the bolt and nut. During this process, the high-temperature sparks generated by the friction between the cutting tool and the metal can easily trigger a violent explosion when they come into contact with flammable and explosive gases such as hydrogen released during battery charging. This not only damages the battery but also poses a serious threat to the lives of repair personnel. The overall approach is as follows:

[0024] To address the problems existing in the prior art, this utility model provides a buffer bolt for charging a storage battery, including a bolt shank 1, a threaded cylinder 2 provided on the outside of the bolt shank 1, an opening 3 provided inside the bolt shank 1, and an internal hole 4 provided at both ends of the bolt shank 1 corresponding to the opening 3, the internal hole 4 communicating with the interior of the opening 3. An installation mechanism for installing the threaded cylinder 2 is provided inside the bolt shank 1, the installation mechanism including a fixing plate 5, a first spring 6 and an insert plate 7. There are two fixing plates 5, which are slidably connected inside the internal hole 4 and the opening 3. The two ends of the first spring 6 are respectively fixedly connected to the adjacent sides of the two fixing plates 5. The insert plate 7 is slidably connected inside the opening 3 and is used to restrict the movement of the fixing plates 5.

[0025] The inner side of the threaded cylinder 2 is provided with a fixing groove 8 corresponding to each fixing plate 5. The end of the fixing plate 5 is engaged in the inside of the fixing groove 8 and used to fix the position of the threaded cylinder 2. The outside of the insert plate 7 is provided with a limit plate 9.

[0026] A limiting groove 10 is provided on one side of the bolt handle 1 corresponding to the limiting plate 9. The limiting groove 10 communicates with the interior of the opening 3. The limiting plate 9 is slidably connected inside the limiting groove 10 and is used to limit the movement of the insert plate 7.

[0027] The side of the insert plate 7 corresponding to the limiting plate 9 has a moving groove 11, and the side of the insert plate 7 corresponding to the moving groove 11 has a through hole 12. The through hole 12 communicates with the interior of the moving groove 11. The limiting plate 9 is slidably connected to the interior of the moving groove 11, and the limiting plate 9 enters the interior of the limiting groove 10 through the through hole 12.

[0028] The inside of the movable groove 11 is fixedly connected to a second spring 13, and the limiting plate 9 is fixedly connected to the end of the second spring 13.

[0029] A support shaft 14 is fixedly installed inside the movable groove 11, a spring is movably sleeved on the outside of the support shaft 14, and a limiting plate 9 is slidably connected to the outside of the support shaft 14.

[0030] A closing plate 15 for closing the moving groove 11 is fixedly installed on the upper surface of the limiting plate 9.

[0031] Opening 3: Provides space for the movement of components such as insert plate 7 and fixing plate 5;

[0032] Built-in holes 4: symmetrically distributed at both ends inside the opening 3, communicating with the outside of the bolt handle 1, providing a moving track for the fixing plate 5, so that the fixing plate 5 can extend out of the bolt handle 1 when needed and be inserted into the fixing groove 8 of the threaded cylinder 2;

[0033] Fixing plate 5: After the fixing plate 5 is inserted into the fixing groove 8, it can restrict the axial and circumferential movement of the threaded cylinder 2 on the bolt handle 1, ensuring that the threaded cylinder 2 is securely installed.

[0034] First spring 6: It is stretched or compressed during the movement of fixed plate 5, providing reset power for fixed plate 5, ensuring that fixed plate 5 can automatically retract after insertion plate 7 is removed, which facilitates disassembly of threaded cylinder 2.

[0035] Insert plate 7: By inserting it between the two fixing plates 5, the fixing plates 5 are pushed to move to both sides, so that the fixing plates 5 are engaged in the fixing grooves 8;

[0036] Limiting plate 9: When the limiting plate 9 enters the limiting groove 10, it can prevent the insert plate 7 from sliding out of the opening 3 during use, thus ensuring the stability of the installation structure.

[0037] Second spring 13: provides support for the connection between the limiting plate 9 and the limiting groove 10;

[0038] Support shaft 14: The support shaft 14 guides the movement direction of the limiting plate 9 and prevents the second spring 13 from twisting during the extension and retraction process;

[0039] Enclosure 15: Prevents dust, debris, etc. from entering the interior of the moving slot 11, and provides a certain degree of protection for the internal components.

[0040] Working principle:

[0041] First, when installing the threaded cylinder 2, the threaded cylinder 2 is placed on the outside of the bolt handle 1. At this time, the fixing groove 8 on the inner side of the threaded cylinder 2 is aligned with the opening 3 on the bolt handle 1. Then, the insert plate 7 is inserted between the two fixing plates 5 through the opening 3. As the insert plate 7 goes deeper, the two sides of the insert plate 7 push the two fixing plates 5 to move to both sides, so that the fixing plates 5 extend out of the bolt handle 1 through the internal hole 4 and enter the fixing groove 8 of the threaded cylinder 2. During this process, the first spring 6 is stretched.

[0042] The second step is to move the limiting plate 9 when the insert plate 7 is blocked by the limiting plate 9. Then, move the limiting plate 9 into the moving groove 11. Continue to move the insert plate 7 downwards until it is fully inside the opening 3. Then, release the limiting plate 9. Under the action of the second spring 13, the limiting plate 9 enters the limiting groove 10 through the through hole 12. At this time, the insert plate 7 is fixed.

[0043] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A buffer bolt for battery charging, comprising a bolt shank (1), characterized in that The bolt handle (1) is provided with a threaded cylinder (2) on the outside. The bolt handle (1) is provided with an opening (3) inside. The bolt handle (1) is provided with an internal hole (4) at both ends corresponding to the opening (3). The internal hole (4) communicates with the opening (3). The bolt handle (1) is provided with an installation mechanism for installing the threaded cylinder (2). The installation mechanism includes a fixing plate (5), a first spring (6), and a insert plate (7). There are two fixing plates (5). The two fixing plates (5) are slidably connected inside the internal hole (4) and the opening (3). The two ends of the first spring (6) are respectively fixedly connected to the side of the two fixing plates (5) that are close to each other. The insert plate (7) is slidably connected inside the opening (3) and is used to restrict the movement of the fixing plate (5). Among them, the inner side of the threaded cylinder (2) is provided with a fixing groove (8) corresponding to each fixing plate (5). The end of the fixing plate (5) is engaged in the inside of the fixing groove (8) and used to fix the position of the threaded cylinder (2). The outside of the insert plate (7) is provided with a limit plate (9).

2. A cushioning bolt for use in charging a battery as defined in claim 1, wherein The bolt handle (1) has a limiting groove (10) on one side corresponding to the limiting plate (9), and the limiting groove (10) communicates with the interior of the opening (3); The limiting plate (9) is slidably connected inside the limiting groove (10) and is used to limit the movement of the insert plate (7).

3. A buffer bolt for charging a battery as claimed in claim 1 or 2, wherein The insert plate (7) has a moving groove (11) on one side corresponding to the limiting plate (9), and a through hole (12) on the other side corresponding to the moving groove (11). The limiting plate (9) is slidably connected inside the moving groove (11), and the limiting plate (9) enters the limiting groove (10) through the through hole (12).

4. A cushioning bolt for use in charging a battery as defined in claim 3, wherein The inside of the movable slot (11) is fixedly connected to a second spring (13); The limiting plate (9) is fixedly connected to the end of the second spring (13).

5. A cushioning bolt for use in charging a battery as defined in claim 4, wherein A support shaft (14) is fixedly installed inside the moving groove (11). The second spring (13) is movably sleeved on the outside of the support shaft (14), and the limiting plate (9) is slidably connected to the outside of the support shaft (14).

6. A cushioning stud for use in charging a battery as defined in claim 1, wherein The upper surface of the limiting plate (9) is fixedly installed with a closing plate (15) for closing the moving groove (11).

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