E-shaped wire clamp

Abstract

The invention provides an E-shaped wire clamp comprising a fixed wire clamp, one side of which is provided with an opening to form an inner cavity for accommodating a main wire, and the side wall of which is provided with a first guide groove and a through hole penetrating through the top surface and the bottom surface; the metal threaded rod penetrates through the through hole from bottom to top; the movable wire clamp is arranged in the inner cavity, one end of the movable wire clamp is inserted into the first guide groove and is in threaded connection with the metal threaded rod, and when the metal threaded rod rotates, the movable wire clamp is driven to move upwards along the metal threaded rod so as to clamp and fasten the main wire; the quick-plug connector is connected with the fixing wire clamp, and a drainage wire penetrates through the quick-plug connector and then is in contact with the fixing wire clamp; the insulating layer comprises an insulating wrapping body and two insulating edge blocks, the insulating wrapping body wraps the outer surface of the fixed wire clamp to achieve insulation, and the two insulating edge blocks are installed on the two sides of the movable wire clamp. According to the invention, the safety and reliability of non-power-cut operation can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of grounding wire clamps, and in particular to an E-type wire clamp for live overlapping drain wires. Background Art

[0002] In recent years, with the promotion and implementation of a series of measures such as increasing the intensity of power grid transformation, optimizing the business environment, and improving the management of non-stop operation of distribution networks, non-stop operation has become an important part of the distribution network maintenance system. As an important tool for non-stop operation of distribution networks, electrical connection clamps, especially distribution network drainage line connection clamps, are used more frequently.

[0003] On the other hand, in the application research of non-stop power operation, the human body does not directly contact the live body to perform the work is a widely studied topic in the power system. At present, the research and development of live installation tools, such as insulated operating rods, has entered the product pilot stage, but the traditional connection wire clamps used for lap connection of drainage wires have long been developed and produced around the mode of manual lap connection, resulting in the existing traditional connection wire clamps not being suitable for live installation tool operations. Therefore, there is an urgent need to develop a connection wire clamp that can be used with live installation tools and is suitable for live distribution network operations. Summary of the invention

[0004] The purpose of the present invention is to provide an E-type wire clamp for live overlapping drain wires, so as to improve the safety and reliability of non-power-off operations.

[0005] In order to achieve the above objectives, the present invention is implemented by the following technical solutions:

[0006] An E-type wire clamp, comprising:

[0007] A fixed wire clamp, one side of which is provided with an opening to form an inner cavity for accommodating the main wire, and a side wall of the fixed wire clamp is provided with a first guide groove and a through hole penetrating the top surface and the bottom surface of the fixed wire clamp;

[0008] A metal threaded rod passes through the through hole from bottom to top;

[0009] A movable wire clamp is arranged in the inner cavity, one end of which is inserted into the first guide groove and is threadedly connected with the metal threaded rod. When the metal threaded rod rotates, the movable wire clamp is driven to move upward along the metal threaded rod to clamp and tighten the main wire;

[0010] A quick-insert connector connected to the fixed wire clamp, wherein the drainage wire contacts the fixed wire clamp after passing through the quick-insert connector;

[0011] The insulating layer comprises an insulating wrapping body and two insulating edge blocks, wherein the insulating wrapping body is coated on the outer surface of the fixed wire clamp to achieve insulation, and the two insulating edge blocks are installed on both sides of the movable wire clamp.

[0012] Optionally, a first arc-shaped groove is provided on the top surface of the inner cavity of the fixed wire clamp, and a second arc-shaped groove is provided on the upper surface of the movable wire clamp. When the movable wire clamp moves upward and approaches the top surface of the inner cavity of the fixed wire clamp, the first arc-shaped groove cooperates with the second arc-shaped groove to form a snap fit for fastening the main wire.

[0013] Optionally, a central axis of the drainage line quick plug intersects with a central axis of the bayonet.

[0014] Optionally, the bottom surface of the fixed wire clamp has a downwardly extending boss, the boss is provided with a receiving hole for accommodating the drainage wire, and the quick-plug connector is connected to the bottom of the boss.

[0015] Optionally, a drainage wire clamping assembly is further included, which is arranged at the bottom of the fixed wire clamp and is used to clamp the drainage wire when the main wire is clamped, so that the drainage wire is in close contact with the fixed wire clamp.

[0016] Optionally, the drainage wire pressing assembly comprises:

[0017] A guide block, arranged at the bottom of the fixed wire clamp, and provided with a second guide groove and a guide hole connected to each other;

[0018] A top block, which is disposed in the second guide groove, and one end of which is located in a through hole opened on the side wall of the boss and penetrating to the accommodating hole;

[0019] An inclined wedge, one end of which is connected to the movable wire clamp, and the other end of which passes through the fixed wire clamp and extends into the guide hole in an inclined state;

[0020] When the movable wire clamp moves upward, the inclined wedge block pushes the top block to move along the second guide groove toward the drainage wire, so as to press the drainage wire tightly onto the fixed wire clamp.

[0021] Optionally, the fixed wire clamp and the movable wire clamp are made of copper material or aluminum alloy material.

[0022] Optionally, the width of the fixed wire clamp ranges from 45 mm to 60 mm.

[0023] Optionally, a plug-in portion is provided at the lower end of the metal threaded rod, and a torque meter on the live installation tool cooperates with the plug-in portion to drive the metal threaded rod to rotate.

[0024] Optionally, clamping parts are provided on both sides of the outside of the insulating enclosure, and a clamp on the live installation tool fixes the E-type wire clamp through the clamping parts.

[0025] Compared with the prior art, the present invention has the following advantages:

[0026] The E-type wire clamp provided by the present invention wraps a metal wire clamp (including a fixed wire clamp and a movable wire clamp) inside an insulating layer, and the drainage wire is installed on the fixed wire clamp with a quick-plug connector, which can avoid the occurrence of induced voltage and ensure safety; when the movable wire clamp clamps the main wire, the drainage wire is also pressed against the fixed wire clamp, and the current can pass smoothly; it can be used in conjunction with live installation tools, thereby improving the safety and work efficiency of non-power-off operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for the description. Obviously, the drawings described below are an embodiment of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work:

[0028] Figure 1 A structural diagram of an E-type wire clamp provided by one embodiment of the present invention;

[0029] Figure 2 The structural diagram of the E-type wire clamp without the insulation wrapping;

[0030] Figure 3 This is the structural diagram of the E-type wire clamp when it is not clamped;

[0031] Figure 4 This is the structural diagram of the E-type wire clamp when clamped. DETAILED DESCRIPTION

[0032] The scheme proposed by the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. According to the following description, the advantages and features of the present invention will be clearer. It should be noted that the accompanying drawings are in a very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the implementation method of the present invention. In order to make the purposes, features and advantages of the present invention more obvious and easy to understand, please refer to the accompanying drawings. It should be noted that the structures, proportions, sizes, etc. illustrated in the accompanying drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no technical substantive significance. Any structural modification, change in proportional relationship or adjustment of size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope of the technical content disclosed by the present invention.

[0033] like Figures 1 to 4 As shown, an E-type wire clamp provided by an embodiment of the present invention comprises: a fixed wire clamp 10, one side of which is provided with an opening 11 to form an inner cavity 12 for accommodating a main wire A, the side wall of the fixed wire clamp 10 is provided with a first guide groove 13 and a through hole penetrating the top surface and the bottom surface of the fixed wire clamp 10; a metal threaded rod 20 passing through the through hole from bottom to top; a movable wire clamp 30, which is arranged in the inner cavity 12, one end of which is inserted into the first guide groove 13 and is threadedly connected with the metal threaded rod 20, the metal threaded rod 20 is provided with a first guide groove 13 and a through hole penetrating the top surface and the bottom surface of the fixed wire clamp 10; a metal threaded rod 20 passing through the through hole from bottom to top; a movable wire clamp 30, which is arranged in the inner cavity 12, one end of which is inserted into the first guide groove 13 and is threadedly connected with the metal threaded rod 20, When the threaded rod 20 rotates, it drives the movable wire clamp 30 to move upward along the metal threaded rod 20 to clamp and tighten the main wire A; the quick-plug connector 40 is connected to the fixed wire clamp 10, and the drainage wire B contacts the fixed wire clamp 10 after passing through the quick-plug connector 40; the insulating layer 50 includes an insulating sheath 51 and two insulating edge blocks 52, the insulating sheath 51 is coated on the outer surface of the fixed wire clamp 10 to achieve insulation, and the two insulating edge blocks 52 are installed on both sides of the movable wire clamp 30.

[0034] In this embodiment, the upper and lower wire clamps of the metal wire clamp, i.e., the fixed wire clamp 10 and the movable wire clamp 30, are both made of metal to ensure that electricity can be supplied from top to bottom. Optionally, the fixed wire clamp 10 and the movable wire clamp 30 are made of copper or aluminum alloy, which are easy to manufacture, generally applicable, and highly operable. When the movable wire clamp 30 moves upward and clamps the main conductor A, the entire metal wire clamp is in a charged state. At the same time, since the metal wire clamp is completely sealed and wrapped inside the insulating layer 50, the induced voltage phenomenon can be avoided to ensure safety. Preferably, the width of the fixed wire clamp 10 ranges from 45 mm to 60 mm, for example, 50 mm, so that the wire clamp can withstand a larger current, and the interception area through which the current passes is also far greater than the energized area of ​​the drainage wire B.

[0035] The top surface of the inner cavity 12 of the fixed wire clamp 10 is provided with a first arc groove 14, and the upper surface of the movable wire clamp 30 is provided with a second arc groove 31. When the movable wire clamp 30 moves upward and approaches the top surface of the inner cavity 12 of the fixed wire clamp 10, the first arc groove 14 and the second arc groove 31 cooperate to form a bayonet for fastening the main wire A. Preferably, the central axis of the quick connector 40 intersects with the central axis of the bayonet, so that the center line of the drainage wire B intersects with the center line of the main wire A, so that the center of gravity of the wire clamp is on the same line as the center of gravity of the main wire A, and the wire clamp is forced downward to maintain stability.

[0036] The bottom surface of the fixed wire clamp 10 has a boss 15 extending downward, and the boss 15 is provided with a receiving hole for accommodating the drainage wire B. The quick-plug connector 40 is connected to the bottom of the boss 15, thereby facilitating the connection between the drainage wire B and the fixed wire clamp 10. Specifically, the quick-plug connector 40 is a female connector, and a male connector is provided near the top of the drainage wire B. After the drainage wire B is inserted into the quick-plug connector 40, the male connector and the female connector are matched to achieve the fixation of the drainage wire, and the top of the drainage wire B will enter the receiving hole.

[0037] like Figure 3 As shown, the E-type wire clamp also includes a drain wire clamping assembly, which is arranged at the bottom of the fixed wire clamp 10 and is used to clamp the drain wire B when the main wire A is clamped, so that the drain wire B is in close contact with the fixed wire clamp 10. That is, when the movable wire clamp 30 moves upward, the drain wire B can be in closer contact with the fixed wire clamp 10, and when the movable wire clamp 30 and the fixed wire clamp 10 clamp the main wire A, the drain wire B is also tightly fixed on the fixed wire clamp 10, thereby ensuring that the current can pass smoothly.

[0038] The drainage wire clamping assembly includes: a guide block 60, which is arranged at the bottom of the fixed wire clamp 10 and is provided with a second guide groove and a guide hole connected to each other; a top block 70, which is arranged in the second guide groove, and one end of which is located in a through hole opened on the side wall of the boss 15 and penetrates to the accommodating hole; an inclined wedge block 80, one end of which is connected to the movable wire clamp 30, and the other end passes through the fixed wire clamp 10 and extends into the guide hole in an inclined state; when the movable wire clamp 30 moves upward, the inclined wedge block 80 pushes the top block 70 to move along the second guide groove toward the drainage wire B, so as to press the drainage wire B against the fixed wire clamp 10. Thus, when the movable wire clamp 30 moves upward, the inclined wedge block 80 moves upward, and the inclined wedge block 80 drives the top block 70 to move toward the drainage wire B, thereby finally pressing the drainage wire B, thereby improving the electrical connectivity between the main wire A and the drainage wire B.

[0039] In addition, the lower end of the metal threaded rod 20 is provided with a plug-in portion 21, and the outer sides of the insulating encapsulation body 50 are provided with clamping portions 53. The torque meter on the live installation tool cooperates with the plug-in portion 21 to drive the metal threaded rod 20 to rotate, and the clamp on the live installation tool fixes the E-type wire clamp through the clamping portion 53. This makes it easy to connect the E-type wire clamp with the live installation tool, and the live installation tool can be used to connect the live drainage line, so that the human body can complete the drainage line connection without touching the live body, which greatly improves the safety and work efficiency of non-stop power supply operations.

[0040] The operation method of the E-type wire clamp is as follows: insert the drainage wire B into the E-type wire clamp, then fix the E-type wire clamp on the clamp of the live installation tool, lift the E-type wire clamp to the main wire A through the live installation tool, make the main wire A enter the inner cavity 12 through the opening 11 of the fixed wire clamp 10, then start the torque meter to rotate the metal threaded rod 20, drive the movable wire clamp 30 to move upward, thereby clamping the main wire A and the drainage wire B. Finally, release the clamp to separate the E-type wire clamp from the live installation tool.

[0041] To sum up, the E-type wire clamp provided by the present invention wraps the metal wire clamp (including the fixed wire clamp and the movable wire clamp) inside the insulating layer, and the drain wire is installed on the fixed wire clamp with a quick-plug connector, which can avoid the occurrence of induced voltage and ensure safety; when the movable wire clamp clamps the main wire, the drain wire is also pressed against the fixed wire clamp, and the current can pass smoothly; it can be used in conjunction with live installation tools, thereby improving the safety and work efficiency of non-power-off operations.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0043] Although the content of the present invention has been described in detail through the above preferred embodiments, it should be appreciated that the above description should not be considered as a limitation of the present invention. After reading the above content, it will be apparent to those skilled in the art that various modifications and substitutions of the present invention will occur. Therefore, the protection scope of the present invention should be limited by the appended claims.

Claims

1. An E-type wire clamp, characterized in that: include: A fixed wire clamp, one side of which is provided with an opening to form an inner cavity for accommodating the main wire, and a side wall of the fixed wire clamp is provided with a first guide groove and a through hole penetrating the top surface and the bottom surface of the fixed wire clamp; A metal threaded rod passes through the through hole from bottom to top; A movable wire clamp is arranged in the inner cavity, one end of which is inserted into the first guide groove and is threadedly connected with the metal threaded rod. When the metal threaded rod rotates, the movable wire clamp is driven to move upward along the metal threaded rod to clamp and tighten the main wire; A quick-insert connector connected to the fixed wire clamp, wherein the drainage wire contacts the fixed wire clamp after passing through the quick-insert connector; The insulating layer comprises an insulating wrapping body and two insulating edge blocks, wherein the insulating wrapping body is coated on the outer surface of the fixed wire clamp to achieve insulation, and the two insulating edge blocks are installed on both sides of the movable wire clamp.

2. The E-type wire clamp according to claim 1, characterized in that: A first arc-shaped groove is provided on the top surface of the inner cavity of the fixed wire clamp, and a second arc-shaped groove is provided on the upper surface of the movable wire clamp. When the movable wire clamp moves upward and approaches the top surface of the inner cavity of the fixed wire clamp, the first arc-shaped groove cooperates with the second arc-shaped groove to form a snap fit for fastening the main wire.

3. The E-type wire clamp according to claim 2, characterized in that: The central axis of the drainage line quick plug intersects with the central axis of the bayonet.

4. The E-type wire clamp according to claim 1, characterized in that: The bottom surface of the fixed wire clamp has a boss extending downwards, the boss is provided with a receiving hole for accommodating the drainage wire, and the quick-insertion connector is connected to the bottom of the boss.

5. The E-type wire clamp according to claim 4, characterized in that: It also includes a drainage wire clamping assembly, which is arranged at the bottom of the fixed wire clamp and is used to clamp the drainage wire when the main wire is compressed, so that the drainage wire is in close contact with the fixed wire clamp.

6. The E-type wire clamp according to claim 5, characterized in that: The drainage line pressing assembly comprises: A guide block, arranged at the bottom of the fixed wire clamp, and provided with a second guide groove and a guide hole connected to each other; A top block, which is disposed in the second guide groove, and one end of which is located in a through hole opened on the side wall of the boss and penetrating to the accommodating hole; An inclined wedge, one end of which is connected to the movable wire clamp, and the other end of which passes through the fixed wire clamp and extends into the guide hole in an inclined state; When the movable wire clamp moves upward, the inclined wedge block pushes the top block to move along the second guide groove toward the drainage wire, so as to press the drainage wire tightly onto the fixed wire clamp.

7. The E-type wire clamp according to claim 1, characterized in that: The fixed wire clamp and the movable wire clamp are made of copper material or aluminum alloy material.

8. The E-type wire clamp according to claim 1, characterized in that: The width of the fixed wire clamp ranges from 45 mm to 60 mm.

9. The E-type wire clamp according to claim 1, characterized in that: The lower end of the metal threaded rod is provided with a plug-in portion, and the torque meter on the live installation tool cooperates with the plug-in portion to drive the metal threaded rod to rotate.

10. The E-type wire clamp according to claim 1, characterized in that: The insulating enclosure is provided with clamping parts on both sides of its exterior, and the clamp on the live installation tool fixes the E-type wire clamp via the clamping parts.

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