A battery clamp with line protection
Patent Information
- Application Number
- CN202521710397.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-12
- Publication Date
- 2026-09-04
- Estimated Expiration
- 2035-08-12
AI Technical Summary
[0003]然而,目前的电瓶夹在使用时,由于连接线与把手直接过多的扭动,且把手对连接线存在限位,使得连接线与把手之间常容易扭断,致使电瓶夹损坏
[0012] Compared with the prior art, the present invention provides a battery clamp with line protection. By pressing the first and second handle pieces, the first and second handle pieces are moved to the terminal. After releasing the first and second handle pieces, the torsion spring wire is released, and the terminal is clamped. Through the insulation treatment of the connection structure, the first and second handle pieces are non-conductive, and the current is guided into the connection wire under the current at the terminal. When it is necessary to maintain a stable connection with the battery for a long time, the sealing piece can be threaded to the battery connection to ensure the stability of the connection and avoid the occurrence of disconnection.
Smart Images

Figure CN224721297U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery clamp technology, specifically a battery clamp with circuit protection. Background Technology
[0002] A battery clamp is an electrical connection device used to connect a storage battery to an external circuit. It typically consists of a conductive clamp body, an insulated handle, and a spring-loaded clamping mechanism. Traditional battery clamps use metal clamps with springs, requiring manual operation to connect to the battery terminals. However, this method suffers from problems such as poor contact, sparking, and lack of reverse connection protection. With the development of electrical systems, modern battery clamps have undergone continuous improvements in materials, structure, and function. For example, they utilize high-conductivity copper alloys, corrosion-resistant plating, and reverse connection protection circuits to enhance conductivity, safety, and durability. These clamps are widely used in automotive starting, emergency power supply, and electrical maintenance.
[0003] However, current battery clamps are prone to breakage during use due to excessive twisting of the connecting cable and handle, and the handle's limitation on the connecting cable. Utility Model Content
[0004] The purpose of this invention is to provide a battery clamp with circuit protection to address the shortcomings of the prior art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a connecting structure is included, comprising a connector, one end of which is provided with a toothed plate, and two arc-shaped plates are also provided on the end of the connector with the toothed plate. A circular ring is provided on the connector, and the end of the connector away from the toothed plate is connected to a connecting line via a circuit. The connecting line is connected to a rotating shaft via a circuit, and one end of the rotating shaft is provided with a sealing member. The sealing member is threaded and can be threadedly connected to the battery connection terminal.
[0006] Furthermore, the two connecting structures are positioned correspondingly to each other, two limiting sleeves are fitted on one rotating shaft, and each of the two limiting sleeves is provided with a limiting disc. The two ring parts are rotatably connected to the two limiting sleeves respectively, and the two limiting discs are respectively attached to the two ring parts.
[0007] Furthermore, each of the two connecting pieces is connected to a first handle piece and a second handle piece respectively. The first handle piece is rotatably connected to the two limiting sleeves, and the second handle piece is rotatably connected to the two limiting sleeves. Each of the two limiting sleeves has a fastener slidably connected to one end away from the limiting plate.
[0008] Furthermore, a limiting block is provided at the end of the rotating shaft away from the sealing member, and the limiting block is interference-fitted with a snap-fit member, which is provided with two handles.
[0009] Furthermore, a torsion spring wire is sleeved on the rotating shaft. One end of the torsion spring wire abuts against the first handle piece, and the other end of the torsion spring wire abuts against the second handle piece. A snap-fit wire is provided on the end of the torsion spring wire that abuts against the second handle piece, and the snap-fit wire snaps into the snap-fit groove.
[0010] Furthermore, both connecting lines pass through a protective sleeve, and an extension block is provided at one end of the protective sleeve. Both connecting lines pass through the extension block and the protective sleeve. A snap-fit groove is provided on the extension block. A limit plate is provided on the second handle, and the limit plate is penetrated by the extension block. The extension block abuts against the protective sleeve, and several movable grooves are provided on the protective sleeve.
[0011] Furthermore, each of the two connecting members is provided with an abutment member, the two abutment members are positioned correspondingly, and each of the two abutment members has several semi-circular cuts of different radii at positions close to each other.
[0012] Compared with the prior art, the present invention provides a battery clamp with line protection. By pressing the first and second handle pieces, the first and second handle pieces are moved to the terminal. After releasing the first and second handle pieces, the torsion spring wire is released, and the terminal is clamped. Through the insulation treatment of the connection structure, the first and second handle pieces are non-conductive, and the current is guided into the connection wire under the current at the terminal. When it is necessary to maintain a stable connection with the battery for a long time, the sealing piece can be threaded to the battery connection to ensure the stability of the connection and avoid the occurrence of disconnection. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0014] Figure 1 One of the overall structural schematic diagrams provided for an embodiment of this utility model; Figure 2 This is the second overall structural schematic diagram provided for an embodiment of the present utility model; Figure 3 This is a schematic diagram of the internal structure provided for an embodiment of the present utility model.
[0015] Explanation of reference numerals in the attached drawings: 1. Connecting structure; 101. Connector; 102. Toothed plate; 103. Arc plate; 104. Ring; 2. Rotating shaft; 4. Limiting disc; 5. First handle; 6. Second handle; 7. Fastener; 8. Sealing component; 9. Limiting block; 10. Snap-fit component; 11. Handle lever; 12. Protective sleeve; 13. Extension block; 14. Connecting wire; 15. Limiting plate; 16. Movable groove; 17. Torsion spring wire; 18. Snap-fit wire; 19. Abutment component. Detailed Implementation
[0016] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0017] Please see Figure 1-3 This utility model provides a battery clamp with circuit protection, including a connection structure 1. The connection structure 1 includes a connector 101. One end of the connector 101 is provided with a toothed plate 102. Two arc-shaped plates 103 are also provided on the end of the connector 101 with the toothed plate. A ring 104 is provided on the connector 101. The end of the connector 101 away from the toothed plate 102 is connected to a connecting line 14 through a line. The connecting line 14 is connected to a rotating shaft 2 through a line. One end of the rotating shaft 2 is provided with a sealing member 8. The sealing member 8 is provided with threads. The sealing member 8 can be threadedly connected to the battery connection end. The threaded connection allows the sealing member 8 to be securely connected to the battery to prevent detachment. In use, by pressing the first handle 5 and the second handle 6, the first handle 5 and the second handle 6 rotate around the rotation shaft 2 due to the restriction of the rotation shaft 2. This causes the two connecting parts 101 to rotate, the two toothed plates 102 to rotate, and the four arc plates 103 to rotate. Then, the first handle 5 and the second handle 6 are moved to the terminal. At the same time, the rotation of the first handle 5 and the second handle 6 can store force on the torsion spring wire 17. Then, the first handle 5 and the second handle 6 are released, causing the torsion spring wire 17 to release, which in turn causes the first handle 5 and the second handle 6 to reset, which in turn resets the two toothed plates 102 and the four arc plates 103. This causes the terminal to be clamped. Through the insulation treatment of the connecting structure 1, the first handle 5 and the second handle 6 are not conductive, and the current is guided to the connecting wire 14 under the current at the terminal.
[0018] Preferably, the two connecting structures 1 are positioned correspondingly to each other, two limiting sleeves are sleeved on a rotating shaft 2, and each of the two limiting sleeves is provided with a limiting disc 4. The two ring parts 104 are rotatably connected to the two limiting sleeves respectively, and the two limiting discs 4 are respectively attached to the two ring parts 104.
[0019] Preferably, the two connectors 101 are respectively connected to a first handle 5 and a second handle 6. The first handle 5 is rotatably connected to two limit sleeves, and the second handle 6 is rotatably connected to two limit sleeves. A fastener 7 is slidably connected to the end of each limit sleeve away from the limit plate 4. An anti-collision post is provided on the first handle 5 and the second handle 6 to prevent clamping from disengaging due to collision.
[0020] Preferably, a limiting block 9 is provided at the end of the rotating shaft 2 away from the sealing member 8. The limiting block 9 is interference-fitted with a snap-fit member 10, and the snap-fit member 10 is provided with two handles 11.
[0021] Preferably, a torsion spring wire 17 is sleeved on the rotating shaft 2. One end of the torsion spring wire 17 abuts against the first handle piece 5, and the other end of the torsion spring wire 17 abuts against the second handle piece 6. A snap-fit wire 18 is provided on the end of the torsion spring wire 17 that abuts against the second handle piece 6, and the snap-fit wire 18 snaps into the snap-fit groove.
[0022] Preferably, both connecting wires 14 pass through a protective sleeve 12. An extension block 13 is provided at one end of the protective sleeve 12. Both connecting wires 14 pass through the extension block 13 and the protective sleeve 12. A snap-fit groove is provided on the extension block 13. A limit plate 15 is provided on the second handle 6. The limit plate 15 is passed through by the extension block 13. The extension block abuts against the protective sleeve 12. Several movable grooves 16 are provided on the protective sleeve 12.
[0023] Furthermore, each of the two connectors 101 is provided with an abutment 19. The two abutment 19 are positioned correspondingly, and each of the two abutment 19 has several semi-circular cuts of different radii at positions close to each other. By fitting the two abutment together, the two cuts overlap, allowing the two abutment to strip wires of different thicknesses, thus facilitating the long-term connection of the battery.
[0024] The working principle of this utility model is as follows: By pressing the first handle 5 and the second handle 6, the first handle 5 and the second handle 6 rotate around the rotation shaft 2 due to the restriction of the rotation shaft 2. This causes the two connecting parts 101 to rotate, the two toothed plates 102 to rotate, and the four arc plates 103 to rotate. Then, the first handle 5 and the second handle 6 are moved to the terminal. At the same time, the rotation of the first handle 5 and the second handle 6 can store force on the torsion spring wire 17. Then, the first handle 5 and the second handle 6 are released, causing the torsion spring wire 17 to be released, which causes the first handle 5 and the second handle 6 to reset, causing the two toothed plates 102 to reset, and causing the four arc plates 103 to reset. This clamps the terminal. Through the insulation treatment of the connecting structure 1, the first handle 5 and the second handle 6 are not conductive, and the current is guided to the connecting wire 14 under the current of the terminal.
[0025] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A battery clamp with circuit protection, characterized in that, The connection structure (1) includes a connector (101), one end of which is provided with a toothed plate (102). Two arc-shaped plates (103) are also provided on the end of the connector (101) where the toothed plate is provided. A ring (104) is provided on the connector (101). The end of the connector (101) away from the toothed plate (102) is connected to a connecting line (14) via a line. The connecting line (14) is connected to a rotating shaft (2) via a line. A sealing member (8) is provided on one end of the rotating shaft (2). The sealing member (8) is provided with a thread and can be threaded to the battery connection end.
2. A battery clamp with circuit protection according to claim 1, characterized in that, The two connecting structures (1) are positioned corresponding to each other. Two limiting sleeves are fitted on a rotating shaft (2). Each of the two limiting sleeves is provided with a limiting disc (4). The two ring parts (104) are rotatably connected to the two limiting sleeves respectively. The two limiting discs (4) are respectively attached to the two ring parts (104).
3. A battery clamp with circuit protection according to claim 2, characterized in that, The two connectors (101) are respectively connected to a first handle (5) and a second handle (6). The first handle (5) is rotatably connected to the two limiting sleeves, and the second handle (6) is rotatably connected to the two limiting sleeves. A fastener (7) is slidably connected to one end of each of the two limiting sleeves away from the limiting plate (4).
4. A battery clamp with circuit protection according to claim 3, characterized in that, A limiting block (9) is provided at the end of the rotating shaft (2) away from the sealing member (8). The limiting block (9) is interference-connected with a snap-fit member (10). The snap-fit member (10) is provided with two handles (11).
5. A battery clamp with circuit protection according to claim 4, characterized in that, A torsion spring wire (17) is sleeved on the rotating shaft (2). One end of the torsion spring wire (17) abuts against the first handle (5), and the other end of the torsion spring wire (17) abuts against the second handle (6). A snap-fit wire (18) is provided on the end of the torsion spring wire (17) that abuts against the second handle (6). The snap-fit wire (18) snaps against the snap-fit groove.
6. A battery clamp with circuit protection according to claim 5, characterized in that, Both of the connecting lines (14) pass through a protective sleeve (12). An extension block (13) is provided at one end of the protective sleeve (12). Both of the connecting lines (14) pass through the extension block (13) and the protective sleeve (12). A snap-fit groove is provided on the extension block (13). A limit plate (15) is provided on the second handle (6). The limit plate (15) is passed through by the extension block (13). The extension block abuts against the protective sleeve (12). Several movable grooves (16) are provided on the protective sleeve (12).
7. A battery clamp with circuit protection according to claim 6, characterized in that, Each of the two connectors (101) is provided with an abutment, the two abutments (19) are positioned correspondingly, and each of the two abutments (19) is provided with a number of semi-circular cuts of different radii at positions close to each other.