Wire clamping device

Abstract

The invention discloses a wire clamping device which comprises a main body, a first handle, a movable wire clamping part, an elastic piece, a second handle and a blocking piece. The movable wire clamping part and the fixed wire clamping part are switched to be in an open state and are kept through a bayonet in the second handle; the insulating rod passes through the third ring of the separation blade to lift the wire clamping device, and meanwhile, the separation blade swings upwards and does not block the position between the movable wire clamping part and the fixed wire clamping part; the wire clamping device is moved through the insulating rod and is placed on the cable; the insulating rod is moved out, the fixed wire clamping part of the wire clamping device is supported by the cable, and meanwhile, the separation blade swings downwards to block the position between the movable wire clamping part and the fixed wire clamping part; and the other insulating rod penetrates through the second ring of the second handle, so that the second handle swings relative to the first handle, the connection between the bayonet and the extension part is released, and under the action of the elastic piece, the first handle is reset, the movable wire clamping part is close to the fixed wire clamping part, and the cable is clamped. The wire clamping device has the beneficial effects of simple structure, convenience in use and stability in wire clamping.

Description

Technical Field

[0001] The invention relates to a cable installation tool, in particular to a cable clamp. Background Art

[0002] The wire clamp is a commonly used wire holding tool during the construction and maintenance of overhead lines. It generally consists of a fixed wire clamping part and a movable wire clamping part. The cable is clamped or loosened by the movement of the movable wire clamping part. In some cases, the cable is energized. In order to ensure safety, an insulating rod is required to complete: placing the wire clamp on the cable to clamp the cable and then removing the wire clamp from the cable. The existing wire clamp is cumbersome and inconvenient to operate when used with an insulating rod. Summary of the invention

[0003] The present application provides a wire clamp that can solve the problems raised in the background technology.

[0004] In the present application, a wire clamp is provided, comprising: The main body has a fixed wire clamping part at the upper position; a first hinge point is provided on one side of the lower position, and a downward extending part is provided on the other side; The first handle has one side hinged to the first hinge point in the upper position, and the other side is provided with a second hinge point between the first hinge point and the extension portion; and a third hinge point and the first ring in the lower position; The movable wire clamping part is hinged at the second hinge point; an elastic member, disposed between the first handle and the main body, so that the first handle tends to be close to the extension portion, so that the movable wire-gripping portion is kept against the fixed wire-gripping portion; A second handle, one end of which is hinged to the third hinge point; the other end of which passes through the extension part and is provided with a second ring; the second ring is close to the extension part and can overcome the elastic member, so that the movable wire-gripping part is away from the fixed wire-gripping part; and a bayonet that can be clamped on the extension part so that the movable wire-gripping part and the fixed wire-gripping part are kept in an open state is also provided; The baffle is provided with a third ring at the upper position; at the lower position, one side is hinged to the fixed wire clamping part, and the other side is connected to the fixed wire clamping part to form a groove pin pair, so that the baffle can block the position between the movable wire clamping part and the fixed wire clamping part under its own weight.

[0005] Furthermore, the first pin of the first hinge point extends beyond the first handle; when the second handle is clamped on the extension portion, the movable clamping portion abuts against the protruding portion of the first pin.

[0006] Furthermore, a first action position is provided below the extension portion; and a second action position is also provided at one end of the second handle passing through the extension portion.

[0007] Furthermore, the second action position is on the inner wall of the second ring.

[0008] Further, along the axis of the first hinge point, the first ring and the extension portion are staggered.

[0009] Furthermore, the first action surface of the fixed wire clamping part acting on the cable and the second action surface of the movable wire clamping part acting on the cable both have textures.

[0010] In summary, in the present application, a wire clamp includes a main body, a first handle, a movable wire clamp part, an elastic member, a second handle and a baffle. The movable wire clamp part and the fixed wire clamp part are switched to an open state and maintained by the bayonet on the second handle; the insulating rod passes through the third ring of the baffle to lift the wire clamp, and the baffle swings upward at the same time, so as not to block the position between the movable wire clamp part and the fixed wire clamp part; the wire clamp is moved by the insulating rod and placed on the cable; the insulating rod is removed, and the fixed wire clamp part of the wire clamp is supported by the cable, and the baffle swings downward at the same time, blocking the position between the movable wire clamp part and the fixed wire clamp part; another insulating rod passes through the second ring of the second handle, so that the second handle swings relative to the first handle, and the connection between the bayonet and the extension part is released. Under the action of the elastic member, the first handle is reset, and the movable wire clamp part approaches the fixed wire clamp part to clamp the cable. Beneficial effects: simple structure, easy to use, and stable wire clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background technology, the drawings required for use in the embodiments of the present application or the background technology will be described below.

[0012] Figure 1 This is the main view of this application; Figure 2 It is the main view of this application in another state; Figure 3 for Figure 2 The present application is schematically shown in the figure where an insulating rod is placed on a cable; Figure 4 The front view of the present application after the extension portion is set in the first action position; Figure 5 for Figure 4 A side view of the present application.

[0013] In the figure, 1. Main body; 1a. Fixed wire clamping part; 1a1. First action surface; 1b. Extending part; 1b1. Through groove; 1b2. First action position; 2. first handle; 2a. connecting piece; 2a1. first ring; 2b. annular protrusion; 3. Active thread-locking part; 3a. Second action surface; 4. Elastic parts; 5. Second handle; 5a. Second ring; 5b. Second action position; 5c. Bayonet; 6. baffle; 6a. third ring; 6b. arc groove; 7. Insulation rod; 8. Cables. DETAILED DESCRIPTION

[0014] The following is further explained in conjunction with the accompanying drawings. Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0015] See also Figure 1 A wire gripper includes a main body 1, a first handle 2, a movable wire gripper 3, an elastic member 4, a second handle 5 and a baffle 6. In order to facilitate the description of the orientation, the upper and lower orientations are determined based on the state of the wire gripper during use.

[0016] A fixed wire clamping part 1a is provided above the main body 1. More specifically, the fixed wire clamping part 1a can be provided integrally with the main body 1, protruding relative to the main body 1, and the lower surface of the protruding part is the first action surface 1a1 that acts on the cable 8 subsequently.

[0017] In the lower part of the main body 1, a first hinge point is arranged on one side, and a downwardly extending portion 1b is arranged on the other side.

[0018] One side of the first handle 2 is hinged to the first hinge point of the main body 1 at the upper position. More specifically, the two can be hinged by a pin. The other side of the upper position is between the first hinge point and the extension 1b, and a second hinge point is also provided.

[0019] A third hinge point and a first ring 2a1 are provided in a lower position of the first handle 2.

[0020] The movable wire clamping part 3 is hinged to the second hinge point of the first handle 2, wherein the upper surface is the second action surface 3a that subsequently acts on the cable 8. That is, by swinging the first handle 2 around the first hinge point, the movable wire clamping part 3 is controlled to approach or move away from the fixed wire clamping part 1a.

[0021] The elastic member 4 is disposed between the first handle 2 and the main body 1, so that the first handle 2 tends to approach the extension portion 1b, so that the movable wire-holding portion 3 is kept against the fixed wire-holding portion 1a. That is, when the movable wire-holding portion 3 is against the fixed wire-holding portion 1a, the required space is reserved between the first handle 2 and the extension portion 1b, so that the finger can enter and be placed at the first action position 1b2 of the extension portion 1b.

[0022] Preferably, the elastic member 4 can be a tension spring, with two ends connected to the first handle 2 and the extension portion 1b respectively. Figure 2 , Figure 3 and Figure 5 The tension spring is not shown.

[0023] One end of the second handle 5 is hinged to the third hinge point, and the other end passes through the extension portion 1b. More specifically, passing through the extension portion 1b means that: the extension portion 1b is provided with a through slot 1b1 for the second handle 5 to pass through. The end of the second handle 5 passing through the extension portion 1b is also provided with a second ring 5a.

[0024] That is, one hand holds the extension part 1b, and the other hand pushes the second rod to switch the movable wire-holding part 3 and the fixed wire-holding part 1a to the open state. That is, the elastic member 4 is overcome, and the second handle 5 drives the first handle 2 to swing, so that the movable wire-holding part 3 is away from the fixed wire-holding part 1a.

[0025] See also Figure 4 In some embodiments, a first action position 1b2 is provided below the extension portion 1b. More specifically, the first action position may be a circular arc concave surface. A second action position 5b is also provided at the end of the second handle 5 passing through the extension portion 1b.

[0026] In this way, the movable wire clamping part 3 and the fixed wire clamping part 1a can be switched to the open state by one hand. More specifically, the index finger and the thumb can act on the first action position 1b2 and the second action position 5b respectively, overcome the elastic member 4, and make the second action position 5b close to the first action position 1b2. The second action position 5b can be a circular arc concave surface like the first action position 1b2.

[0027] See also Figure 4 Furthermore, the second action position 5b is on the inner wall of the second ring 5a.

[0028] In this way, after the second ring 5a is provided, there is no need to provide the second action position 5b separately, so that the structure of the second handle 5 can be simpler.

[0029] See also Figure 5 Further, along the axis of the first hinge point, the first ring 2a1 and the extension 1b are staggered. More specifically, a connecting piece 2a may be fixedly connected to the surface of the first handle 2 perpendicular to the axis, and the first ring 2a1 is disposed on the connecting piece 2a.

[0030] When the first handle 2 swings around the first hinge point, if the first handle 2 approaches the extension 1b, a space needs to be reserved between the first handle 2 and the extension 1b for the finger to enter and be placed at the first action position 1b2 of the extension 1b. After the first ring 2a1 and the extension 1b are staggered, it is more convenient to reserve the space, and the structure can be more reasonable and compact. See also Figure 1 The second handle 5 is also provided with a bayonet 5c, which can be clamped on the extension portion 1b so that the movable wire clamping portion 3 and the fixed wire clamping portion 1a remain in an open state. That is, the bayonet 5c can be set at a corresponding position of the second handle 5 according to the specific interval required by the movable wire clamping portion 3 and the fixed wire clamping portion 1a in the open state (needed to allow the cable 8 to enter).

[0031] See also Figure 2 In some embodiments, the first handle 2 is further provided with an annular protrusion 2b at the first hinge point. The movable thread-holding portion 3 can be provided with a counterweight so that the side close to the first hinge point is relatively heavier. When the movable thread-holding portion 3 moves away from the fixed thread-holding portion 1a, the movable thread-holding portion 3 also swings relative to the first handle 2 and approaches the first hinge point. Until the second handle 5 is clamped on the extension portion 1b, the movable thread-holding portion 3 abuts against the annular protrusion 2b.

[0032] In this way, when the movable thread-clamping part 3 and the fixed thread-clamping part 1a are in the open state, the movable thread-clamping part 3 can be easily positioned at a certain position by abutting against the excess portion of the pin. By setting the second action surface 3a of the movable thread-clamping part 3, the first action surface 1a1 and the second action surface 3a are parallel in the open state.

[0033] See also Figure 1 A third ring 6a is provided above the baffle 6.

[0034] See also Figure 2 and Figure 3, in the lower position of the baffle 6, one side is hinged to the fixed wire clamping part 1a, and the other side is connected to the fixed wire clamping part 1a to form a groove pin pair, that is, the baffle 6 can be provided with an arc groove 6b, and the corresponding center of the circle coincides with the hinge point between the baffle 6 and the fixed wire clamping part 1a. The baffle 6 swings downward under its own weight until the arc groove 6b on the baffle 6 abuts against the pin of the fixed wire clamping part 1a. At this time, the baffle 6 blocks the position between the movable wire clamping part 3 and the fixed wire clamping part 1a.

[0035] Briefly describe the process of clamping the cable 8 in this application: S1, switch the movable thread-holding part 3 and the fixed thread-holding part 1a to an open state, and hold them by the bayonet 5c on the second handle 5; S2, the insulating rod 7 passes through the third ring 6a of the baffle 6, lifts the wire clamp, and at the same time the baffle 6 swings upward until the groove on the baffle 6 abuts against the pin of the fixed wire clamp part 1a, and the baffle 6 does not block the position between the movable wire clamp part 3 and the fixed wire clamp part 1a; S3, move the wire clamp through the insulating rod 7 and place it on the cable 8, so that the cable 8 enters the position between the movable wire clamp part 3 and the fixed wire clamp part 1a; S4, move out the insulating rod 7, the fixed wire clamping part 1a of the wire clamp is supported by the cable 8, and at the same time, the blocking piece 6 swings downward to block the position between the movable wire clamping part 3 and the fixed wire clamping part 1a; S5, the insulating rod 7 passes through the second ring 5a of the second handle 5, so that the second handle 5 swings relative to the first handle 2, releasing the connection between the bayonet 5c and the extension part 1b, and under the action of the elastic member 4, the first handle 2 is reset, and the movable wire clamping part 3 approaches the fixed wire clamping part 1a to clamp the cable 8.

[0036] In some embodiments, the first action surface 1a1 of the fixed cable clamping part 1a acting on the cable 8 and the second action surface 3a of the movable cable clamping part 3 acting on the cable 8 are both textured, so that the cable 8 is clamped more stably.

[0037] Briefly describe the process of removing this application from cable 8: S1, the insulating rod 7 passes through the first ring 2a1 of the first handle 2, overcomes the elastic member 4, and makes the first handle 2 swing relative to the main body 1, switches the movable wire clamping part 3 and the fixed wire clamping part 1a to the open state, and is held by the bayonet 5c on the second handle 5; S2, the insulating rod 7 passes through the third ring 6a of the baffle 6, and the wire clamp is lifted up, and at the same time the baffle 6 swings upward and the fixed wire clamping part 1a is separated from the cable 8; S3. Move the wire holder through the insulating rod 7 and remove the wire holder from the cable 8.

Claims

1. A wire clamp, characterized in that: include: The main body (1) is provided with a fixed wire clamping portion (1a) at the upper position; a first hinge point is provided on one side of the lower position, and a downward extending portion (1b) is provided on the other side; The first handle (2) has one side hinged to the first hinge point in the upper position, and the other side is provided with a second hinge point between the first hinge point and the extension portion (1b); and a third hinge point and a first ring (2a1) are provided in the lower position; The movable wire clamping part (3) is hinged at the second hinge point; An elastic member (4) is arranged between the first handle (2) and the main body (1) so that the first handle (2) tends to be close to the extension portion (1b), thereby keeping the movable wire-holding portion (3) against the fixed wire-holding portion (1a); A second handle (5), one end of which is hinged to the third hinge point; the other end of which passes through the extension portion (1b) and is provided with a second ring (5a); the second ring (5a) is close to the extension portion (1b) and can overcome the elastic member (4), thereby making the movable wire-holding portion (3) away from the fixed wire-holding portion (1a); and a bayonet (5c) is also provided which can be clamped on the extension portion (1b) so that the movable wire-holding portion (3) and the fixed wire-holding portion (1a) remain in an open state; The baffle (6) is provided with a third ring (6a) at the upper position; at the lower position, one side is hinged to the fixed wire clamping part (1a), and the other side is connected to the fixed wire clamping part (1a) to form a groove pin pair, so that the baffle (6) can block the position between the movable wire clamping part (3) and the fixed wire clamping part (1a) under its own weight.

2. A wire clamp according to claim 1, characterized in that: The first pin of the first hinge point extends beyond the first handle (2); when the second handle (5) is clamped on the extension portion (1b), the movable clamping portion (3) abuts against the protruding portion of the first pin.

3. A wire clamp according to claim 1, characterized in that: A first action position (1b2) is provided below the extension portion (1b); and a second action position (5b) is also provided at one end of the second handle (5) passing through the extension portion (1b).

4. A wire clamp according to claim 3, characterized in that: The second action point (5b) is on the inner wall of the second ring (5a).

5. A wire clamp according to claim 1, characterized in that: Along the axis of the first hinge point, the first ring (2a1) and the extension (1b) are offset.

6. A wire clamp according to claim 1, characterized in that: A first action surface (1a1) of the fixed wire clamping portion (1a) acting on the cable (8) and a second action surface (3a) of the movable wire clamping portion (3) acting on the cable (8) both have textures.

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