A hand-held portable wire and cable clamping mechanism
Patent Information
- Application Number
- CN202522174673.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-15
- Publication Date
- 2026-09-29
- Estimated Expiration
- 2035-10-15
AI Technical Summary
[0002]在电力运维施工现场，经常会有对两根高压导线进行连接的操作，尤其是直径较粗的电缆线，有的直径甚至达到2cm，在对其接头部位进行连接的时候，操作是比较麻烦的，目前这种大尺寸导电线连接采用的线夹种类有安普线夹、并沟线夹和创通线夹等几类，它们各有优缺点，安普线夹采用楔形插入式连接，需要专门的安装工具进行安装，虽然安装便捷性和导电性好，但是由于是楔形设计，随着使用时间的推移会发生楔头慢慢松动甚至脱落的情况；并沟线夹采用可拆卸连接方式，采用简单的普通扳手即可安装，适用于临时、中小截面、常规场景的导电线的连接，成本低、操作灵活，但是夹紧力和耐久性较弱，易受人为因素影响，长时间使用可能松动，电气连接稳定性较低，而且对于高负荷、大截面导线或特殊环境性能不足，故障率较高；创通线夹采用半永久螺栓连接，使用简便的普通扳手即可操作，一般适用于架空线路升级、节能改造的场景，其连接过载能力高，接触面积大，接触力恒定，连接牢固，但是其成本价格略高（因材料和工艺），对安装技术要求较高，若安装不当或选型不符，易造成连接失效，需严格遵循厂家规范
[0013]1.本实用新型通过设计第一弧形夹、第二弧形夹、棘齿结构与所述的弹性卡齿结构卡接的形式，形成对于两根导电线的紧固连接，作业时，只需要作业人员用手使劲握住两边的第一弧形夹、第二弧形夹，利用棘齿结构与弹性卡齿结构进行实时锁紧，非常方便快捷。
Smart Images
Figure CN224817798U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of power cable maintenance and construction tools and equipment, and in particular to a manual and convenient wire and cable clamping mechanism. Background Technology
[0002] In power maintenance and construction sites, it is common to connect two high-voltage conductors, especially with thicker cables, some even reaching 2cm in diameter. Connecting these cables at the joints is quite cumbersome. Currently, several types of clamps are used for connecting such large-diameter conductive wires, including AMP clamps, parallel groove clamps, and Chuangtong clamps. Each type has its advantages and disadvantages. AMP clamps use a wedge-shaped insertion connection, requiring specialized installation tools. While convenient to install and offering good conductivity, the wedge design can cause the wedge head to loosen or even fall off over time. Parallel groove clamps, on the other hand, use a detachable connection method and can be installed with a simple ordinary wrench. For temporary, small-to-medium cross-section, and routine applications of conductive wires, this type of clamp is low-cost and flexible to operate. However, it has weak clamping force and durability, is susceptible to human factors, and may loosen over time. It also has low electrical connection stability and is insufficient for high-load, large-section conductors or special environments, resulting in a higher failure rate. Chuangtong clamps use semi-permanent bolt connections, which can be easily operated with a regular wrench. They are generally suitable for overhead line upgrades and energy-saving renovations. They have high overload capacity, large contact area, constant contact force, and a firm connection. However, their cost is slightly higher (due to materials and processes), and they require higher installation skills. Improper installation or incorrect selection can easily lead to connection failure. Strict adherence to the manufacturer's specifications is necessary.
[0003] The aforementioned existing conductive clamps all have certain limitations for high-altitude and high-voltage operations, are not convenient enough to install, and have relatively high tool costs. Utility Model Content
[0004] The purpose of this utility model is to address the above-mentioned situation by providing a manual and convenient wire and cable clamping mechanism. This clamping mechanism, through its simple design, makes clamping conductive wire connectors simpler, more convenient, and more stable.
[0005] The specific solution of this utility model is as follows: a manual and convenient wire and cable clamping mechanism, including a first arc-shaped clamp and a second arc-shaped clamp arranged opposite to each other. The lower ends of the first arc-shaped clamp and the second arc-shaped clamp are hinged together by a connecting pin. The upper end of the first arc-shaped clamp is provided with a through channel, and an elastic tooth structure is provided above the through channel. The upper end of the second arc-shaped clamp is provided with a ratchet structure laterally. A fastening reinforcing screw is provided laterally on the outer end of the ratchet structure. During operation, a fastening nut is fitted on the fastening reinforcing screw. The ratchet structure passes through the through channel and engages with the elastic tooth structure to realize the closing of the first arc-shaped clamp and the second arc-shaped clamp and clamp the two high-voltage wires. A movable arc-shaped clamping plate made of conductive metal is also provided on the inner side of the first arc-shaped clamp. The movable arc-shaped clamping plate can be moved up and down along the first arc-shaped clamp. A fixed arc-shaped clamping plate made of conductive metal is also provided on the inner side of the second arc-shaped clamp. The fixed arc-shaped clamping plate and the movable arc-shaped clamping plate are arranged opposite to each other.
[0006] Furthermore, in this utility model, the first arc-shaped clamp is composed of two arc-shaped menisci, with a gap between the two arc-shaped menisci. The upper ends of the two arc-shaped menisci are connected as one unit by a connecting rod, and the lower ends of the two arc-shaped menisci and the lower end of the second arc-shaped clamp are hinged together by a connecting pin. The through channel communicates with the gap between the two arc-shaped menisci. The back of the movable arc-shaped clamp is connected to the two arc-shaped menisci through an adjustable locking structure. The second arc-shaped clamp is placed between the two arc-shaped menisci.
[0007] Furthermore, the adjustable locking structure described in this utility model includes a threaded post and a locking nut. One end of the threaded post is welded to the back of the movable arc-shaped clamp, and the other end of the threaded post passes outward through the gap between the two arc-shaped clamps and is locked in place by the locking nut.
[0008] Furthermore, the elastic locking tooth structure described in this utility model includes a flipping arm, a torsion spring, a torsion spring sleeve, a torsion spring stop, and locking teeth. The torsion spring sleeve and the torsion spring stop are both located on the upper part of the first arc-shaped clamp near the end. The middle position of the flipping arm is rotatably connected to the torsion spring sleeve. The locking teeth are fixedly disposed on the front end of the flipping arm and engage with the ratchet structure. The spring coil of the torsion spring is fitted onto the torsion spring sleeve. One end of the torsion spring abuts against the bottom surface of the flipping arm, and the other end of the torsion spring is placed downwards at the bottom of the torsion spring stop. The tail of the flipping arm extends backwards.
[0009] Furthermore, the ratchet structure described in this utility model is composed of several oblique teeth arranged in a straight line, with the oblique teeth tilted in the same direction to facilitate the hooking of the elastic locking tooth structure.
[0010] Furthermore, the tilting arm described in this utility model is made of stainless steel plate bent into a channel-shaped steel bar structure.
[0011] Furthermore, both the fixed arc-shaped clamp and the movable arc-shaped clamp described in this utility model are made by bending a wide conductive plate.
[0012] This utility model has the following beneficial effects:
[0013] 1. This utility model forms a tight connection between two conductive wires by designing a first arc-shaped clamp, a second arc-shaped clamp, a ratchet structure, and an elastic locking tooth structure. During operation, the operator only needs to hold the first arc-shaped clamp and the second arc-shaped clamp on both sides firmly with their hands, and use the ratchet structure and the elastic locking tooth structure to lock them in real time, which is very convenient and quick.
[0014] 2. In this utility model, after the first and second arc-shaped clamps are locked in real time using a ratchet structure and an elastic locking tooth structure, an additional locking is added. That is, a fastening reinforcing screw is provided laterally on the outer end of the ratchet structure. During operation, a fastening nut is fitted on the fastening reinforcing screw, and further locking is achieved through the fastening nut. In this way, the two conductive wires can be connected more firmly.
[0015] 3. This utility model also includes a fixed arc-shaped clamp and a movable arc-shaped clamp, both of which are made of wide conductive plates, increasing the contact area of the conductor, improving the overload capacity, and ensuring stable conductivity during operation.
[0016] 4. This utility model uses a ratchet structure for connection and locking when fastening, and a flip arm in the elastic tooth structure for unlocking when disassembling, which is very convenient and labor-saving, and efficient and quick to disassemble. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure from the main view direction of this utility model;
[0018] Figure 2 This is a top view structural diagram of this utility model;
[0019] Figure 3 This is a side view structural diagram of the present invention;
[0020] Figure 4 This is a schematic diagram of the elastic locking tooth structure in this utility model;
[0021] Figure 5 This is a schematic diagram of the state when the present invention is connected to two high-voltage conductive wires.
[0022] In the diagram: 1—threaded post, 2—locking nut, 3—movable arc-shaped clamp, 4—first arc-shaped clamp, 5—fastening reinforcing screw, 6—flipping arm, 7—torsion spring sleeve rod, 8—torsion spring stop rod, 9—connecting rod, 10—slanted tooth, 11—second arc-shaped clamp, 12—fixed arc-shaped clamp, 13—connecting pin, 14—arc-shaped meniscus, 15—torsion spring, 16—clamping tooth, 17—high-voltage conductive wire, 18—fastening nut. Detailed Implementation
[0023] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," etc., indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model or simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0024] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0025] See Figures 1-4This utility model is a manual and convenient wire and cable clamping mechanism, including a first arc-shaped clamp 4 and a second arc-shaped clamp 11 arranged opposite to each other. The lower ends of the first arc-shaped clamp and the second arc-shaped clamp are hinged together by a connecting pin 13. The upper end of the first arc-shaped clamp is provided with a through channel, and an elastic tooth structure is provided above the through channel. The upper end of the second arc-shaped clamp is provided with a ratchet structure laterally. A fastening reinforcing screw 5 is provided laterally on the outer end of the ratchet structure. During operation, a fastening nut 18 is fitted on the fastening reinforcing screw. The ratchet structure passes through the through channel and engages with the elastic tooth structure to realize the closing of the first arc-shaped clamp and the second arc-shaped clamp and clamp the two high-voltage conductive wires 17. A movable arc-shaped clamping plate 3 made of conductive metal is also provided on the inner side of the first arc-shaped clamp. The movable arc-shaped clamping plate can be moved up and down along the first arc-shaped clamp. A fixed arc-shaped clamping plate 12 made of conductive metal is also provided on the inner side of the second arc-shaped clamp. The fixed arc-shaped clamping plate and the movable arc-shaped clamping plate are arranged opposite to each other. Furthermore, in this utility model, the first arc-shaped clamp is composed of two arc-shaped meniscus plates 14, with a gap between them. The upper ends of the two arc-shaped meniscus plates are connected as one unit by a connecting rod 9, and the lower ends of the two arc-shaped meniscus plates are hinged to the lower end of the second arc-shaped clamp by a connecting pin 13. The through channel communicates with the gap between the two arc-shaped meniscus plates. The back of the movable arc-shaped clamp plate is connected to the two arc-shaped meniscus plates through an adjustable locking structure. The second arc-shaped clamp is placed between the two arc-shaped meniscus plates. Furthermore, the adjustable locking structure in this utility model includes a threaded post 1 and a locking nut 2. One end of the threaded post is welded to the back of the movable arc-shaped clamp plate, and the other end of the threaded post passes outward through the gap between the two arc-shaped meniscus plates and is locked in place by the locking nut. Furthermore, the elastic locking tooth structure of this utility model includes a flipping arm 6, a torsion spring 15, a torsion spring sleeve 7, a torsion spring stop 8, and locking teeth 16. The torsion spring sleeve and the torsion spring stop are both positioned near the end of the upper part of the first arc-shaped clamp. The middle position of the flipping arm is rotatably connected to the torsion spring sleeve. The locking teeth are fixedly disposed on the front end of the flipping arm and engage with the ratchet structure. The spring coil of the torsion spring is fitted onto the torsion spring sleeve, with one end of the torsion spring abutting against the bottom surface of the flipping arm and the other end facing downwards at the bottom of the torsion spring stop. The tail of the flipping arm extends rearwards. Furthermore, the ratchet structure of this utility model is composed of several inclined teeth 10 arranged in a straight line, with the inclined teeth tilted in the same direction to facilitate hooking with the elastic locking tooth structure. Furthermore, the flipping arm of this utility model is made of stainless steel plate bent into a channel-shaped steel strip structure. Furthermore, both the fixed arc-shaped clamp and the movable arc-shaped clamp described in this utility model are made of wide conductive plates bent together. This design is for better conductivity and to enhance the ability to withstand overload current.
[0026] See Figure 5In practical use, this invention places two high-voltage conductive wires between the first and second arc-shaped clamps. The operator holds the two arc-shaped clamps directly, with the oblique teeth protruding outward from the through-channel. Simultaneously, the teeth at the front end of the flip arm of the elastic locking structure engage with the oblique teeth to achieve crimping and locking of the two high-voltage conductive wires inside. As the first and second arc-shaped clamps close and lock, the fixed and movable arc-shaped clamps on both sides clamp the two high-voltage conductive wires together. To make the clamping of the high-voltage conductive wires more stable, after normal locking, a fastening nut is fitted onto the fastening reinforcing screw for further tightening.
[0027] The position of the movable arc-shaped clamp on the first arc-shaped clamp can be adjusted according to the actual clamping requirements of the conductive wire. Specifically, this adjustment is made by turning the threaded post and the locking nut.
[0028] When it is necessary to disassemble the conductive wire, it is relatively simple. First, remove the fastening nut, then press down the tail of the flip arm as shown in the figure, and release the locking teeth and the oblique teeth to release the first arc-shaped clamp and the second arc-shaped clamp. Pull them apart to unlock.
[0029] This invention utilizes a design with a first arc-shaped clamp, a second arc-shaped clamp, a ratchet structure, and an elastic locking structure to form a secure connection between two conductive wires. During operation, the operator simply grips the first and second arc-shaped clamps firmly, using the ratchet and elastic locking structures for immediate locking, which is very convenient and quick. After the first and second arc-shaped clamps are locked in place using the ratchet and elastic locking structures, an additional locking layer is added. A reinforcing screw is horizontally positioned at the outer end of the ratchet structure. During operation, a tightening nut is fitted onto the reinforcing screw for further tightening, thus ensuring a more secure connection between the two conductive wires. This invention also includes a fixed arc-shaped clamp plate and a movable arc-shaped clamp plate, both made of wide conductive plates, increasing the contact area of the conductors, improving overload capacity, and ensuring stable conductivity during operation. This invention uses a ratchet structure for fastening and a flip arm in an elastic tooth structure for unlocking, making it very convenient and labor-saving, and efficient and quick to disassemble.
Claims
1. A manual, portable wire and cable clamping mechanism, characterized in that: The device includes a first arc-shaped clamp and a second arc-shaped clamp arranged opposite to each other. The lower ends of the first and second arc-shaped clamps are hinged together by a connecting pin. The upper end of the first arc-shaped clamp is provided with a through channel, and an elastic locking tooth structure is provided above the through channel. The upper end of the second arc-shaped clamp is provided with a ratchet structure, and a fastening reinforcing screw is provided laterally on the outer end of the ratchet structure. During operation, a fastening nut is fitted on the fastening reinforcing screw. The ratchet structure passes through the through channel and engages with the elastic locking tooth structure to achieve the closing of the first and second arc-shaped clamps and clamp the two high-voltage wires. A movable arc-shaped clamp made of conductive metal is also provided on the inner side of the first arc-shaped clamp. The movable arc-shaped clamp can be moved up and down along the first arc-shaped clamp. A fixed arc-shaped clamp made of conductive metal is also provided on the inner side of the second arc-shaped clamp. The fixed arc-shaped clamp and the movable arc-shaped clamp are arranged opposite to each other.
2. The manual portable wire and cable clamping mechanism according to claim 1, characterized in that: The first arc-shaped clamp is composed of two arc-shaped menisci with a gap between them. The upper ends of the two arc-shaped menisci are connected as one unit by a connecting rod, and the lower ends of the two arc-shaped menisci are hinged to the lower end of the second arc-shaped clamp by a connecting pin. The through channel communicates with the gap between the two arc-shaped menisci. The back of the movable arc-shaped clamp is connected to the two arc-shaped menisci through an adjustable locking structure. The second arc-shaped clamp is placed between the two arc-shaped menisci.
3. The manual portable wire and cable clamping mechanism according to claim 2, characterized in that: The adjustable locking structure includes a threaded post and a locking nut. One end of the threaded post is welded to the back of the movable arc-shaped clamping plate, and the other end of the threaded post passes outward through the gap between the two arc-shaped menisci and is locked in place by the locking nut.
4. The manual portable wire and cable clamping mechanism according to claim 1, characterized in that: The elastic locking tooth structure includes a flipping arm, a torsion spring, a torsion spring sleeve, a torsion spring stop, and locking teeth. The torsion spring sleeve and the torsion spring stop are both located on the upper part of the first arc-shaped clamp near the end. The middle position of the flipping arm is rotatably connected to the torsion spring sleeve. The locking teeth are fixedly disposed on the front end of the flipping arm and engage with the ratchet structure. The spring coil of the torsion spring is fitted onto the torsion spring sleeve. One end of the torsion spring abuts against the bottom surface of the flipping arm, and the other end of the torsion spring is placed downward at the bottom of the torsion spring stop. The tail of the flipping arm extends backward.
5. The manual portable wire and cable clamping mechanism according to claim 1, characterized in that: The ratchet structure is composed of several oblique teeth arranged in a straight line, with the oblique teeth tilted in the same direction to facilitate the hooking of the elastic locking structure.
6. The manual portable wire and cable clamping mechanism according to claim 4, characterized in that: The tilting arm is made of stainless steel plate bent into a channel-shaped steel bar structure.
7. The manual portable wire and cable clamping mechanism according to claim 1, characterized in that: Both the fixed arc-shaped clamp and the movable arc-shaped clamp are made of wide conductive plates bent together.