A wire clamp and wiring fastening assembly thereof

Abstract

A wire clamp and its wiring fastening assembly. The characteristics are as follows: the screw comprises a threaded rod, the lower end of the threaded rod is provided with an operating portion, the upper end is provided with a connecting column, the end of the connecting column is provided with a limiting boss, the limiting boss and the connecting column form a T-shaped connecting portion; the side wall of the pressure block is formed with a first groove, the lower opening of the first groove forms a second groove, the first groove and the second groove form a T-shaped groove matched with the T-shaped connecting portion, and the side walls of the second groove are correspondingly formed with movable grooves; the T-shaped connecting portion of the screw is inserted into the T-shaped groove of the pressure block, the connecting column is restricted in the movable groove, and the connecting column can rotate and move in the circumferential direction of the movable groove. The advantages are that the pressure block and the screw are very convenient to process and assemble, and the screw is laterally inserted into the T-shaped groove of the pressure block through the T-shaped connecting portion, and is not easy to fall out, and the size of the limiting boss can be enlarged to ensure the limiting effect in the axial direction, and the structure is more stable and reliable.

Description

Technical Field

[0001] The invention relates to a live working tool, in particular to a wire clamp and a wiring fastening assembly thereof. Background Art

[0002] The wire clamp is one of the devices used for live working in the power system and plays a very important role. Currently, most common drainage wire clamps are in the form of hooks, which use screws to push the pressure block to tighten the wire.

[0003] For example, a live operating wire clamp (CN109713473A) disclosed in an invention patent application previously applied by the applicant includes a main frame, a fastening assembly, and the main frame is provided with a first mounting position and a second mounting position arranged side by side, and the fastening assembly can be moved up and down from the bottom of the main frame to penetrate into the first mounting position and the second mounting position, and the fastening assembly includes a screw rod and a pressing block, wherein an annular step is provided at the upper end of the screw rod, and a mounting groove adapted to the annular step is provided at the bottom of the pressing block, and the screw rod and the pressing block can rotate relative to each other. When installing and connecting the screw rod and the pressing block, the screw rod is usually directly inserted into the mounting groove of the pressing block from bottom to top.

[0004] However, when the screw and the pressing block are connected in the above manner, in order to smoothly install the screw into the installation groove, the protruding size of the annular step on the screw is very small, and its diameter is only slightly larger than the screw. The connection is very unreliable and is easy to wear out and fall off with repeated use, and the service life is short. Summary of the invention

[0005] In order to overcome the shortcomings of the background technology, the present invention provides a wire clamp and a wiring fastening assembly thereof.

[0006] The technical solution adopted by the present invention is as follows: a wiring fastening assembly of a wire clamp, comprising a screw and a pressure block, the pressure block being arranged at the upper end of the screw, the screw comprising a threaded rod, an operating portion being arranged at the lower end of the threaded rod, and a connecting column being arranged at the upper end, a limiting boss being arranged at the end of the connecting column, the limiting boss and the connecting column forming a T-shaped connecting portion; a first groove is formed on the side wall of the pressure block, a second groove is formed at the lower opening of the first groove, the first groove and the second groove form a T-shaped groove matching the T-shaped connecting portion, and movable grooves are correspondingly formed on the side walls of the second groove; the T-shaped connecting portion of the screw is inserted into the T-shaped groove of the pressure block, the connecting column is confined in the movable groove, and the connecting column can rotate circumferentially in the movable groove.

[0007] The connecting post is cylindrical, the width of the second groove is smaller than the diameter of the connecting post, and the movable groove is an arc shape adapted to the connecting post.

[0008] The limiting boss is cylindrical, and the diameter of the limiting boss is larger than the diameter of the movable groove and smaller than the width of the first groove.

[0009] The screw is located at the bottom center of the pressing block.

[0010] The upper end of the pressing block is formed with a contact surface which is concave downwards.

[0011] A toothed structure is formed on the contact surface.

[0012] A wire clamp comprises a main frame and the above-mentioned wiring fastening assembly, wherein at least one first wiring slot that is connected front to back is formed on the main frame, one side wall of the first wiring slot is provided with an opening, at least one group of wiring fastening assemblies is provided below the first wiring slot, a pressure block of the wiring fastening assembly is arranged in the first wiring slot, and a screw rod thereof is located below the main frame and penetrates from below the first wiring slot to cooperate with the thread of the main frame.

[0013] The main frame is also provided with a second wiring groove, which is arranged on the other side of the opening opposite to the first wiring groove and is connected up and down. At least one group of wiring fastening components is provided on the side of the second wiring groove. The pressure block of the wiring fastening component is arranged in the second wiring groove, and its screw is inserted from the side of the second wiring groove and cooperates with the thread of the main frame.

[0014] The open end is provided with a guide portion for guiding the electric wires into the first wiring groove.

[0015] The wiring fastening assembly matched with the second wiring slot is arranged at the front side or the rear side of the second wiring slot, and the left side of the second wiring slot is provided with a connecting portion that can be matched with the installation tool.

[0016] The beneficial effects of the present invention are as follows: by adopting the above scheme, the processing and assembly of the pressing block and the screw are very convenient. At the same time, the screw is laterally inserted into the T-slot of the pressing block through the T-connecting part and is not easy to fall out. Moreover, the size of the limiting boss can be enlarged to ensure the limiting effect in the axial direction, and the structure is more stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the front view structure of the wire clamp according to an embodiment of the present invention.

[0018] Figure 2 It is a bottom view structural schematic diagram of the wire clamp according to an embodiment of the present invention.

[0019] Figure 3 It is a schematic structural diagram of a wiring fastening assembly according to an embodiment of the present invention.

[0020] Figure 4 Schematic diagram of the structure of the screw rod according to the embodiment of the present invention.

[0021] Figure 5 Schematic diagram of the structure of a compact according to an embodiment of the present invention.

[0022] Figure 6 for Figure 5 Schematic diagram of the structure in the AA direction. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are further described below in conjunction with the accompanying drawings:

[0024] like Figure 1-2 As shown, a wire clamp includes a main frame, on which a first wiring slot 3 and a second wiring slot 4 are provided. The first wiring slot 3 is arranged to be connected front to back, and an opening 31 for a power line to enter the first wiring slot 3 is arranged on the right side wall thereof, and two groups of wiring fastening components are arranged below the first wiring slot 3; the second wiring slot 4 is arranged on the left side of the first wiring slot 3, and is arranged to be connected up and down, and two groups of wiring fastening components are also arranged on the side of the second wiring slot 4.

[0025] The wiring fastening assembly includes a pressing block and a screw. The screw of the wiring fastening assembly below the first wiring slot 3 penetrates into the first wiring slot 3 from bottom to top and cooperates with the main frame thread. The pressing block is arranged in the first wiring slot 3 and at the end of the screw. The pressing block can be driven to move up and down by rotating the screw, and can be driven to compress the wires in the first wiring slot 3 together with the main frame.

[0026] The screw of the wiring fastening assembly on the side of the second wiring slot 4 is arranged horizontally and penetrates into the second wiring slot 4 laterally, and cooperates with the thread of the main frame. The pressing block is arranged in the second wiring slot 4. By rotating the screw, the pressing block can be driven to move laterally, and the pressing block can be driven together with the main frame to press the drainage line in the second wiring slot 4.

[0027] When drainage wiring is performed through the above-mentioned wire clamp, the drainage wire is first passed through the second wiring groove 4 from bottom to top, and it is fixed and locked by the corresponding wiring fastening component, and then the above-mentioned wiring clamp is clamped by the long rod installation tool, and the wire can enter the first wiring groove 3 through the opening 31, so that the above-mentioned wire clamp is hung on the wire, and then the wiring fastening component under the first wiring groove 3 is tightened by the long rod wrench to fix and lock the wire, thereby realizing drainage wiring.

[0028] With the above solution, since the drainage line is extended into the second wiring slot from bottom to top and fixed, bending and deformation of the drainage line is avoided. Compared with the existing structure, there is less elastic torque caused by bending and deformation when lifting the wiring, making the operation easier and more labor-saving.

[0029] like Figure 1As shown, a guide portion 32 for guiding the wires into the first wiring slot 3 is provided at the end of the opening 31. The guide portion 32 is arranged at the upper end of the opening 31 and is inclined to the upper right. When the above-mentioned wiring clamp is clamped by a long rod installation tool, the guiding effect of the guide portion 32 can accurately guide the wires through the opening 31 into the first wiring slot 3.

[0030] Of course, the guide portion 32 may also be arranged horizontally and extend to the right, or may be arranged at the lower end of the opening 31 , the main purpose of which is to extend the end of the opening, expand the opening, and further facilitate operation.

[0031] like Figure 1-2 As shown, the wiring fastening assembly matched with the second wiring slot 4 is arranged at the front side of the second wiring slot 4, and of course it can also be at the rear side. The left side of the second wiring slot 4 is provided with a connecting portion 41 that can cooperate with the installation tool.

[0032] The connecting portion 41 is a boss structure protruding from the upper and lower ends of the left side wall of the second wiring slot 4, which is convenient for wiring installation operations in cooperation with installation tools.

[0033] like Figure 3-6 As shown, a wiring fastening assembly of a wire clamp includes a screw rod 1 and a pressing block 2, wherein the pressing block 2 is arranged at the upper end of the screw rod 1.

[0034] The screw rod 1 comprises a threaded rod 11 , an operating portion 12 is provided at the lower end of the threaded rod 11 , a connecting column 13 is provided at the center of the upper end, a limiting boss 14 is provided at the center of the upper end of the connecting column 13 , and the limiting boss 14 and the connecting column 13 form a T-shaped connection portion.

[0035] The operating portion 12 may be an operating rod in the shape of a regular hexagon, and the connecting column 13 and the limiting boss 14 are both in a cylindrical structure.

[0036] The pressing block 2 is formed with a first groove 21 , the lower opening of the first groove 21 forms a second groove 22 , the first groove 21 and the second groove 22 constitute a T-shaped groove matched with the T-shaped connecting portion, and movable grooves 23 are correspondingly formed on both side walls of the second groove 22 .

[0037] Among them, the first groove 21 and the second groove 22 are located in the middle position below the pressing block 2, and the movable groove 23 is correspondingly arranged at the bottom center of the pressing block 2, presenting an arc structure with the bottom center as the center of the circle. When the screw rod 1 is connected with the pressing block 2, the screw rod 1 can be located at the bottom center position of the pressing block 2. When wiring, the force is stable, the operation is labor-saving, and the fastening effect of the wires is good.

[0038] The diameter of the limiting boss 14 is larger than the diameter of the movable groove 23 and smaller than the width of the first groove 21. The connecting column 13 is adapted to the movable groove 23 and has a diameter larger than the width of the second groove 22. During installation, the T-shaped connecting portion of the screw rod 1 is laterally inserted into the T-shaped groove of the pressing block 2 until the connecting column 13 enters the movable groove 23, thereby being restricted in the movable groove 23 and unable to escape, and ensuring that the connecting column 13 can rotate circumferentially in the movable groove 23.

[0039] In order to facilitate installation and reliable limiting after installation, the width of the second groove 22 is slightly smaller than the diameter of the connecting column 13. During installation, it can be pressed onto the screw 1 by cold pressing using external force, or it can be installed by hot installation by heating the pressing block 2 to expand it and then put it on the screw 1.

[0040] By adopting the above scheme, the processing and assembly of the pressing block 2 and the screw 1 are very convenient. At the same time, the screw 1 is laterally inserted into the T-slot of the pressing block 2 through the T-connecting part and is not easy to fall out. In addition, the size of the limiting boss 14 can be enlarged to ensure the limiting effect in the axial direction. The overall structure is more stable and reliable, and the service life is long.

[0041] In addition, a downwardly recessed contact surface 24 is formed on the upper end of the pressing block 2, which can better match the wires. A tooth-shaped structure is formed on the contact surface 24, which has a better fastening connection effect.

[0042] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0044] Technical personnel should note that although the present invention has been described according to the above specific implementation methods, the inventive concept of the present invention is not limited to this invention, and any modification using the inventive concept will be included in the scope of protection of this patent.

Claims

1. A wiring fastening assembly for a wire clamp, comprising a screw rod (1) and a pressing block (2), wherein the pressing block (2) is arranged at the upper end of the screw rod (1), and is characterized in that: The screw rod (1) comprises a threaded rod (11), an operating portion (12) is provided at the lower end of the threaded rod (11), a connecting column (13) is provided at the upper end, a limiting boss (14) is provided at the end of the connecting column (13), and the limiting boss (14) and the connecting column (13) form a T-shaped connecting portion; The side wall of the pressing block (2) is formed with a first groove (21), the lower opening of the first groove (21) forms a second groove (22), the first groove (21) and the second groove (22) constitute a T-shaped groove that matches the T-shaped connecting portion, and the side walls of both sides of the second groove (22) are correspondingly formed with movable grooves (23); The T-shaped connecting portion of the screw rod (1) is inserted into the T-shaped groove of the pressing block (2), the connecting column (13) is restricted in the movable groove (23), and the connecting column (13) can rotate circumferentially in the movable groove (23); The connecting column (13) is cylindrical, the width of the second groove (22) is smaller than the diameter of the connecting column (13), and the movable groove (23) is an arc shape that matches the connecting column (13); The limiting boss (14) is cylindrical, and the diameter of the limiting boss (14) is greater than the diameter of the movable groove (23) and smaller than the width of the first groove (21).

2. The wiring fastening assembly of a wire clamp according to claim 1, characterized in that: The screw rod (1) is located at the bottom center of the pressing block (2).

3. The wiring fastening assembly of a wire clamp according to claim 1, characterized in that: A contact surface (24) recessed downwards is formed at the upper end of the pressing block (2).

4. The wiring fastening assembly of a wire clamp according to claim 3, characterized in that: A tooth-shaped structure is formed on the contact surface (24).

5. A wire clamp, comprising a main frame and a wiring fastening assembly according to any one of claims 1 to 4, wherein at least one first wiring slot (3) which is connected front to back is formed on the main frame, a side wall of the first wiring slot (3) is provided with an opening (31), at least one set of wiring fastening assemblies is provided below the first wiring slot (3), a pressing block (2) of the wiring fastening assembly is arranged in the first wiring slot (3), and a screw (1) thereof is located below the main frame and penetrates from below the first wiring slot (3) to cooperate with the thread of the main frame.

6. The wire clamp according to claim 5, characterized in that: The main frame is also provided with a second wiring slot (4), the second wiring slot (4) being arranged on the other side of the first wiring slot (3) relative to the opening (31) and being connected up and down, at least one set of wiring fastening components being arranged on the side of the second wiring slot (4), the pressing block of the wiring fastening component being arranged in the second wiring slot (4), the screw rod of which is inserted from the side of the second wiring slot (4) and engaged with the thread of the main frame.

7. The wire clamp according to claim 5, characterized in that: A guide portion (32) for guiding the electric wire into the first wiring slot (3) is provided at the end of the opening (31).

8. The wire clamp according to claim 6, characterized in that: A wiring fastening assembly matching with the second wiring slot (4) is arranged at the front side or the rear side of the second wiring slot (4), and a connecting portion (41) matching with an installation tool is provided on the left side of the second wiring slot (4).

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