A hook type self-locking wire clamp

Abstract

The present invention relates to the technical field of cable installation, and relates to a hook-type self-locking wire clamp, which comprises a clamp seat, a receiving groove is provided at the lower end of the clamp seat, an upper half clamping groove of a cable is provided at the top of the clamp seat, an arc-shaped barb groove is provided in the upper half clamping groove of the cable, a threaded hole is provided at the top of the base, and a conductive wire to be carried is connected to the rear end of the clamp seat; a movable component is rotatably arranged in the receiving groove, a downwardly bent barb is provided at the upper end of the movable component, a lower half clamping groove of the cable is provided in the middle of the movable component, a through hole is provided at the lower end of the movable component, and a bolt connected to the threaded hole is provided in the through hole; the clamp seat can be directly moved downward to be hung on the main transmission line, the operation is simple, and the technical requirements are extremely low; and in the process of hanging downward, the movable component can be rotated in linkage, and there is no need to manually rotate the movable component, so that after the movable component is arranged in the upper half clamping groove of the cable and the lower half clamping groove of the cable, the personnel only need to fix the bolts by insulating tools, thereby improving the installation efficiency and being convenient to use.

Description

Technical Field

[0001] The invention relates to the technical field of cable installation, in particular to a hook-type self-locking wire clamp. Background Art

[0002] With the continuous improvement of living standards, the demand for electric energy has also increased. However, there are many power supply equipments, which are prone to failures. Therefore, the maintenance workload will increase, which will lead to an increase in the number of power outages. In order to reduce the impact of excessive power outages on customers' electricity consumption and power supply companies, live work is carried out in the 10kV distribution network maintenance work. Live work refers to the work of high-voltage electrical equipment and facilities without power outage. Most of the current maintenance and business expansion work can be completed without power outage, greatly reducing construction power outages. At the same time, live work can also be used for most accident handling, which can significantly reduce the time and scope of power outages. In the upgrading, transformation and operation and maintenance of the 10kV distribution network, a large number of operations of splicing branch drainage lines on the main transmission lines are involved. An important auxiliary tool for splicing branch drainage lines on the main transmission lines is the live work clamp used to electrically connect the drainage line to the main transmission line.

[0003] At present, a common parallel special-shaped wire clamp is operated by an insulating rod, which is hung on the earring of the live line or the grounding ring of the live line. The parallel special-shaped wire clamp is mostly composed of several parts such as a special-shaped body, an inner movable block, an outer movable block, etc., and then fastened by bolts. The existing parallel special-shaped wire clamp has high technical requirements for connecting the conductive end during operation. It takes certain skills to clamp the conductive wire into the special-shaped body of the wire clamp, which increases the difficulty of operation.

[0004] In summary, in order to solve the deficiencies in the prior art, it is necessary to design a live wire clamp with a simple structure and easy use. Summary of the invention

[0005] The invention provides a hook-type self-locking wire clamp to solve the problems of the prior art.

[0006] The object of the present invention can be achieved by the following technical scheme: a hook-type self-locking wire clamp comprises: a clamp seat, a receiving groove is provided at the lower end of the clamp seat, the receiving groove is provided with at least one group, the top of the clamp seat is provided with a cable upper clamping groove, the cable upper clamping groove is provided with an arc-shaped barb groove, the arc-shaped barb groove is connected to the receiving groove, the top of the clamp seat is provided with a threaded hole, the threaded hole is provided on the outside of the cable upper clamping groove, the inlet position of the threaded hole is provided with a waist hole larger than the aperture of the threaded hole, and the rear end of the clamp seat is connected with a conductive wire;

[0007] A movable component, wherein the movable component is arranged in an equal number to the accommodating grooves, the movable component is rotatably arranged in the accommodating groove, the movable component is arranged with the same width as the accommodating groove, a downwardly bent barb is arranged at the upper end of the movable component, the barb is arranged with the same width as the arc-shaped barb groove, a lower cable clamping groove corresponding to the upper cable clamping groove is arranged in the middle of the movable component, a through hole is arranged at the lower end of the movable component, and a bolt connected to the threaded hole is arranged in the through hole.

[0008] As a further improvement, the upper cable clamping groove and the lower cable clamping groove are both provided with anti-slip serrations inside.

[0009] As a further improvement, a pre-tightening end face 1 is provided at the lower end of the movable component, a pre-tightening end face 2 is provided at the bottom of the clamp seat, and a gap exists between the pre-tightening end face 1 and the pre-tightening end face 2 when the movable component is rotated 90° counterclockwise.

[0010] As a further improvement, a magnetic block is embedded at the bottom of the movable component.

[0011] As a further improvement, a limit block is sleeved on the bolt, the limit block is arranged above the through hole and the limit block diameter is larger than the through hole width, the limit block diameter is smaller than the outer diameter of the waist hole, and the limit block is a spring buckle or a rubber gasket.

[0012] As a further improvement, the bolt is a countersunk hexagon socket bolt.

[0013] As a further improvement, two groups of threaded holes 2 are symmetrically provided at the rear end of the clamp seat, and the threaded holes 2 are connected to aluminum noses through screws, and the inner holes of the aluminum noses are connected to conductive wires.

[0014] As a further improvement, the movable component is rotatably disposed in the accommodating groove via a rotating shaft.

[0015] Compared with the prior art, the live wire clamp of the present invention can be hung on the main transmission line by directly moving the clamp seat downward, which is simple to operate and has extremely low technical requirements. In the process of hanging downward, the movable component can be rotated in conjunction, and there is no need to manually rotate the movable component. After the movable component is set in the upper and lower clamping grooves of the cable, the personnel only need to fix the bolts with insulating tools, which improves the installation efficiency and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of the present invention

[0017] Figure 2 A structural schematic diagram of another perspective of the present invention

[0018] Figure 3 The schematic diagram of the structure of the present invention when closed

[0019] Figure 4This is a schematic diagram of the structure with a limit block of the present invention.

[0020] Figure 5 A schematic diagram of the structure of the present invention from the back perspective

[0021] In the figure, 1-clamp seat, 11-accommodating groove, 12-cable upper clamping groove, 121-anti-slip serrations, 13-arc-shaped barb groove, 14-threaded hole, 141-waist hole, 15-threaded hole two, 151-screw, 16-aluminum nose, 17-pre-tightening end face two, 18-gap, 2-movable component, 21-barb, 22-cable lower clamping groove, 23-through hole, 24-pre-tightening end face one, 3-bolt, 4-conductive wire, 5-magnetic block, 6-limiting block, 7-rotating shaft. DETAILED DESCRIPTION

[0022] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0023] 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Below is a combination of the embodiments and the attached Figures 1 to 5 , the technical solution of the present invention is further elaborated.

[0025] Example 1

[0026] A hook-type self-locking wire clamp, comprising:

[0027] A clamping seat 1, wherein a receiving groove 11 is provided at the lower end of the clamping seat 1, wherein at least one group of receiving grooves 11 is provided, wherein a cable upper half clamping groove 12 is provided at the top of the clamping seat 1, wherein an arc-shaped barb groove 13 is provided in the cable upper half clamping groove 12, wherein the arc-shaped barb groove 13 is connected to the receiving groove 11, wherein a threaded hole 14 is provided at the top of the clamping seat 1, wherein the threaded hole 14 is provided at the outer side of the cable upper half clamping groove 12, wherein a waist hole 141 having a larger aperture than the threaded hole 14 is provided at the inlet position of the threaded hole 14, and wherein a conductive wire 4 is connected to the rear end of the clamping seat 1;

[0028] A movable component 2, wherein the movable component 2 is arranged in equal number to the corresponding accommodating grooves 11, the movable component 2 is rotatably arranged in the accommodating groove 11, the movable component 2 is arranged with the same width as the accommodating groove 11, a downwardly bent barb 21 is arranged at the upper end of the movable component 2, the barb 21 is arranged with the same width as the arc-shaped barb groove 13, a cable lower half clamping groove 22 corresponding to the cable upper half clamping groove 12 is arranged in the middle of the movable component 2, a through hole 23 is arranged at the lower end of the movable component 2, and a bolt 3 connected to the threaded hole 14 is arranged in the through hole 23.

[0029] Specific use process: the branch drainage conductive wire 4 to be overlapped is pre-fixed at the rear end of the clamp seat 1, and the live wire clamp is moved by the insulating rod until the barb 21 of the movable component 2 is hung on the main transmission line. At this time, the state is as follows: Figure 1 As shown, the main transmission line is located in the lower half of the cable clamping groove 22. Since the actual position of the main transmission line is fixed, when the clamp seat 1 is pulled downward by the insulating rod, the main transmission line will push the movable component 2 upward counterclockwise, as shown in FIG. Figure 3 As shown, until the barb 21 on the movable component 2 presses against the inner bottom surface of the arc-shaped barb groove 13 and is hidden in the arc-shaped barb groove 13, the main transmission line is set inside the upper cable clamping groove 12 and the lower cable clamping groove 22, and the bolt 3 is in a vertical state. The bolt 3 is pre-tightened by the insulating rod bolt tightening tool to complete the pre-tightening and fixing of the live wire clamp to the main transmission line, thereby realizing subsequent electrical conduction.

[0030] like Figure 2 As shown, when the bolt 3 is threadedly connected to the threaded hole 14, a waist hole 141 larger than the diameter of the threaded hole 14 is provided at the entrance position of the threaded hole 14. The waist hole 141 provides space for the bolt 3 to find the entrance position of the threaded hole 14. The waist hole 141 guides the bolt 3, so that the bolt 3 can be screwed into the threaded hole 14 more quickly, thereby improving the bolt fixing efficiency.

[0031] The downwardly bent barb 21 enables the clamping base 1 to be moved downward and then hung on the main transmission line. The barb 21 can prevent the clamping base 1 from moving forward and backward and being separated from the main transmission line, thereby ensuring the stability of the hanging.

[0032] The clamp seat 1 can be directly moved downward to be hung on the main transmission line. The operation is simple and the technical requirements are extremely low. In the process of hanging downward, the movable component 2 can be rotated in conjunction, and there is no need to manually rotate the movable component 2. After the movable component 2 is set in the upper cable clamping groove 12 and the lower cable clamping groove 22, the personnel only need to fix the bolt 3 with an insulating tool, which improves the installation efficiency and is easy to use.

[0033] As a further embodiment, the cable upper half clamping groove 12 and the cable lower half clamping groove 22 are both provided with anti-slip serrations 121. Figure 2As shown, the anti-slip serrations 121 can increase the friction between the upper cable clamping groove 12 and the lower cable clamping groove 22 and the main transmission line, thereby improving the pre-tightening force.

[0034] As a further embodiment, the lower end of the movable component 2 is provided with a pre-tightening end surface 14, the bottom of the clamping seat 1 is provided with a pre-tightening end surface 17, and a gap 18 is formed between the pre-tightening end surface 14 and the pre-tightening end surface 17 when the movable component 2 is rotated 90° counterclockwise. Figure 3 As shown, when the movable component 2 rotates 90° counterclockwise, the main transmission line is located inside the upper cable clamping groove 12 and the lower cable clamping groove 22. Since there is a gap 18 between the pre-tightening end face 1 24 and the pre-tightening end face 2 17, after the bolt 3 is pre-tightened upward, the movable component 2 can be further driven to rotate counterclockwise upward, and the lower cable clamping groove 22 can continue to push the main transmission line upward, further clamping the main transmission line inside the upper cable clamping groove 12 and the lower cable clamping groove 22 to improve stability.

[0035] As a further embodiment, a magnetic block 5 is embedded at the bottom of the movable component 2. Figure 1 and Figure 2 As shown, a magnetic block 5 is embedded inside the bottom of the movable component 2, and the magnetic block 5 can magnetically attract the bolt 3 to prevent it from falling from a high altitude during the rotation of the movable component 2.

[0036] As a further embodiment, a limit block 6 is sleeved on the bolt 3, the limit block 6 is arranged above the through hole 23 and the diameter of the limit block 6 is greater than the width of the through hole 23, the diameter of the limit block 6 is smaller than the outer diameter of the waist hole 141, and the limit block 6 is a spring buckle or a rubber washer. The limit block 6 prevents the movable component 2 from falling from a high altitude during the rotation process. Using a rubber washer as the limit block 6 has the advantage of low cost, and using a spring buckle as the limit block 6 has the advantage of aesthetics.

[0037] As a further embodiment, the bolt 3 is a countersunk hexagon socket bolt.

[0038] As a further embodiment, the rear end of the clamp seat 1 is symmetrically provided with two sets of threaded holes 15, the threaded holes 15 are connected to aluminum noses 16 through screws 151, and the inner holes of the aluminum noses 16 are connected to the conductive wires 4. Figure 5 As shown, after the conductive wire 4 is placed in the inner hole of the aluminum nose 16 in advance, the aluminum nose 16 is pre-tightened by two sets of screws 151 to fix the conductive wire 4.

[0039] As a further embodiment, the movable component 2 is rotatably disposed in the accommodating groove 11 via the rotating shaft 7 .

[0040] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. A hook-type self-locking wire clamp, characterized in that: include: A clamping seat, a receiving groove is provided at the lower end of the clamping seat, and at least one group of receiving grooves is provided. An upper half clamping groove of the cable is provided at the top of the clamping seat, and an arc-shaped barb groove is provided in the upper half clamping groove of the cable, and the arc-shaped barb groove is connected to the receiving groove. A threaded hole is provided at the top of the clamping seat, and the threaded hole is provided on the outside of the upper half clamping groove of the cable. A waist hole larger than the aperture of the threaded hole is provided at the entrance position of the threaded hole, and a conductive wire is connected to the rear end of the clamping seat; a movable component, the movable component is arranged with an equal number of corresponding receiving grooves, the movable component is rotatably arranged in the receiving groove, the movable component and the receiving groove are arranged with the same width, a downwardly bent barb is provided on the upper end of the movable component, and the barb is arranged with the same width as the arc-shaped barb groove, a lower half clamping groove of the cable corresponding to the upper half clamping groove of the cable is provided in the middle part of the movable component, and a through hole is provided at the lower end of the movable component. A bolt connected to the threaded hole is provided in the through hole, and anti-slip serrations are provided inside the upper and lower clamping grooves of the cable. A pre-tightening end face one is provided at the lower end of the movable component, and a pre-tightening end face two is provided at the bottom of the clamp seat. There is a gap between the pre-tightening end face one and the pre-tightening end face two when the movable component is rotated 90° counterclockwise, and a magnetic block is inlaid at the bottom of the movable component. A limit block is provided on the bolt, and the limit block is arranged above the through hole and the diameter of the limit block is greater than the width of the through hole, and the diameter of the limit block is smaller than the outer diameter of the waist hole. The limit block is a spring buckle or a rubber washer, and the bolt is a countersunk hexagon socket bolt. Two groups of threaded holes two are symmetrically provided at the rear end of the clamp seat, and the threaded hole two is connected to an aluminum nose by a screw, and the inner hole of the aluminum nose is connected to the wire to be energized, and the movable component is rotatably arranged in the accommodating groove by a rotating shaft.

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