A wedge type parallel groove wire clamp

Abstract

The utility model discloses a kind of wedge type parallel groove wire clamps, it is related to electric power fitting technical field, and the utility model includes bottom plate, the top surface one side of bottom plate is symmetrically equipped with clamping device, the top surface of bottom plate is equipped with limiting device, the limiting device includes the card frame of symmetric distribution, the card frame is hingedly connected between each other, the one side of card frame is equipped with clamping groove, the top surface of card frame is equipped with limiting hole, the inner wall of limiting hole is inserted with inserting rod, the one side of first wedge is equipped with first wedge groove, the one side of second wedge is equipped with second wedge groove, the top surface of first wedge is inserted with first limiting rod, the top surface of second wedge is inserted with second limiting rod, first wedge and second wedge are extruded wire through first wedge groove and second wedge groove, form tight connection using the self-locking characteristic of wedge structure, the utility model can effectively prevent wire from coming out, and wire can be quickly installed.

Description

Technical Field

[0001] This utility model relates to the field of power fittings technology, specifically a wedge-shaped parallel groove clamp. Background Technology

[0002] Wedge-shaped parallel groove clamps are electrical fittings used for non-load-bearing splicing or branch splicing of conductors in overhead power distribution lines. Ordinary wedge-shaped parallel groove clamps include a C-shaped housing and a wedge block.

[0003] However, existing technologies still have many defects in some similar structures when used in practice. For example, the conductor may slip out of the clamp due to loss of effective fixation, causing the line to break, resulting in a power outage and affecting the reliability of power supply in the area. If the detached conductor touches the ground or other objects, it may cause a single-phase grounding fault, triggering the relay protection device to trip and expanding the power outage area. At the same time, if the installation process is complicated, it will prolong the installation time of a single clamp. Especially in the scenario of large-scale line erection or emergency repair, it may cause the overall construction progress to be delayed. When working at height, the inconvenience of operation will increase the time that workers spend on the tower, increasing the safety risks of falling from height and electric shock.

[0004] To address the aforementioned problems, the inventors proposed a wedge-shaped parallel groove clamp to solve them. Utility Model Content

[0005] To address the problems of not being able to prevent wires from coming loose and the inconvenience of quickly installing wires, the purpose of this utility model is to provide a wedge-shaped parallel groove wire clamp.

[0006] To solve the above technical problems, the present invention adopts the following technical solution: a wedge-shaped parallel grooved wire clamp, including a base plate, a snap-fit ​​device symmetrically provided on one side of the top surface of the base plate, a limiting device provided on the top surface of the base plate, the limiting device including symmetrically distributed snap frames, the snap frames being hinged to each other, a snap groove being provided on one side of the snap frame, a limiting hole being provided on the top surface of the snap frame, and a plug rod being inserted into the inner wall of the limiting hole.

[0007] As a preferred technical solution of this application, the snap-fit ​​device includes a first wedge and a second wedge. The first wedge and the second wedge are snapped together on opposite sides. A first wedge groove is provided on one side of the first wedge and a second wedge groove is provided on one side of the second wedge. A first limiting rod is inserted into the top surface of the first wedge and a second limiting rod is inserted into the top surface of the second wedge.

[0008] By employing the above technical solution, the first wedge and the second wedge are placed on both sides of the conductor, so that the conductor is embedded in the mating gap between the first wedge groove and the second wedge groove. The first wedge and the second wedge squeeze the conductor through the first wedge groove and the second wedge groove, and a tight connection is formed by utilizing the self-locking characteristic of the wedge structure. The first limiting rod and the second limiting rod are inserted into the top surface of the first wedge and the second wedge simultaneously, which restricts the lateral displacement of the first wedge and the second wedge during the clamping process, and can effectively prevent the conductor from coming out.

[0009] As a preferred technical solution of this application, the top surface of the base plate is threaded with a plurality of bolts arranged in a rectangular array.

[0010] Through the above technical solution, the base plate is connected to the bracket by multiple bolts. The bolts are distributed in a rectangular array to provide uniform fixing force and ensure that the wire clamp does not shift or shake under the tension of the wire.

[0011] As a preferred technical solution of this application, the inner wall of the card frame is provided with a hinge shaft, and both ends of the hinge shaft are fixedly connected to limit plates.

[0012] The above technical solution limits the rotation angle of the card frame by the limiting plate, ensuring that the card slot is aligned with the wire when the card frame is closed.

[0013] As a preferred technical solution of this application, two wear-resistant pads are fixedly connected to the top surface of the card frame.

[0014] Through the above technical solution, the wear-resistant pad is used to buffer the pressure of the insertion rod, prevent the insertion rod from directly abrading the frame, and increase friction to prevent the insertion rod from loosening.

[0015] As a preferred technical solution of this application, the first wedge groove and the second wedge groove are used in combination.

[0016] The above technical solution involves placing the first wedge and the second wedge on both sides of the conductor, so that the conductor is embedded in the mating gap between the first wedge groove and the second wedge groove, and the first wedge and the second wedge squeeze the conductor through the first wedge groove and the second wedge groove.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This invention can form a tight connection by squeezing the wire through the first wedge and the second wedge groove by the first wedge groove and the second wedge groove, and by utilizing the self-locking characteristic of the wedge structure. The first limiting rod and the second limiting rod are inserted into the top surface of the first wedge and the second wedge at the same time to limit the lateral displacement of the first wedge and the second wedge during the clamping process, thereby effectively preventing the wire from coming out.

[0019] This invention can fix the position of the clamping frame by closing the clamping frame, inserting the plug rod through the limiting hole, limiting the lateral movement of the wire, preventing the wire from shifting before clamping, and limiting the rotation angle of the clamping frame by the limiting plate to ensure that the clamping slot is aligned with the wire when the clamping frame is closed, thereby achieving the purpose of effective and rapid installation of the wire. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the limiting device of this utility model.

[0023] Figure 3 This is a schematic diagram of the snap-fit ​​device of this utility model.

[0024] Figure 4 This is a schematic diagram of the snap-fit ​​device of this utility model.

[0025] In the diagram: 1. Base plate; 2. Clip-on device; 3. Limiting device; 4. Bolt; 21. First wedge block; 22. Second wedge block; 23. First wedge groove; 24. Second wedge groove; 25. First limiting rod; 26. Second limiting rod; 31. Clip frame; 32. Hinge shaft; 33. Limiting plate; 34. Clip groove; 35. Wear-resistant pad; 36. Limiting hole; 37. Insert rod. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example: Figure 1-4 As shown, this utility model provides a wedge-shaped parallel groove clamp, including a base plate 1. The top surface of the base plate 1 is threaded with a plurality of bolts 4 arranged in a rectangular array. A snap-fit ​​device 2 is symmetrically provided on one side of the top surface of the base plate 1, and a limiting device 3 is provided on the top surface of the base plate 1.

[0028] The limiting device 3 includes symmetrically distributed card frames 31, which are hinged to each other. The inner wall of the card frame 31 is provided with a hinge shaft 32. Both ends of the hinge shaft 32 are fixedly connected to a limiting plate 33. A card slot 34 is opened on one side of the card frame 31. Two wear-resistant pads 35 are fixedly connected to the top surface of the card frame 31. A limiting hole 36 is opened on the top surface of the card frame 31. An insert rod 37 is inserted into the inner wall of the limiting hole 36.

[0029] Close the clamping frame 31, insert the rod 37 through the limiting hole 36, fix the position of the clamping frame 31, limit the lateral movement of the wire, and prevent the wire from shifting before clamping. The limiting plate 33 limits the rotation angle of the clamping frame 31, ensuring that the clamping slot 34 is aligned with the wire when the clamping frame 31 is closed, which can effectively and quickly install the wire.

[0030] The snap-fit ​​device 2 includes a first wedge 21 and a second wedge 22. The first wedge 21 and the second wedge 22 are snapped together on opposite sides. A first wedge groove 23 is provided on one side of the first wedge 21, and a second wedge groove 24 is provided on one side of the second wedge 22. The first wedge groove 23 and the second wedge groove 24 are used in conjunction. A first limiting rod 25 is inserted into the top surface of the first wedge 21, and a second limiting rod 26 is inserted into the top surface of the second wedge 22.

[0031] The first limiting rod 25 and the second limiting rod 26 are simultaneously inserted into the top surfaces of the first wedge 21 and the second wedge 22, limiting the lateral displacement of the first wedge 21 and the second wedge 22 during the clamping process, which can effectively prevent the wire from coming out.

[0032] The working principle of a wedge-shaped parallel groove clamp according to an embodiment of this application is as follows: The base plate 1 is connected to the bracket by multiple bolts 4. The bolts 4 are distributed in a rectangular array to provide uniform fixing force to ensure that the clamp does not shift or shake under the tension of the wire. The clamp frame 31 is opened and rotated around the hinge axis 32. The wire is placed into the clamp slot 34 to ensure that the wire is located in the two clamp frames 31. The clamp frame 31 is closed and the insertion rod 37 is inserted through the limiting hole 36 to fix the position of the clamp frame 31, restrict the lateral movement of the wire, and prevent the wire from shifting before clamping. The limiting plate 33 restricts the rotation angle of the clamp frame 31 to ensure that the clamp slot 34 is aligned with the wire when the clamp frame 31 is closed. The wear-resistant pad 35 is used to buffer the pressure of the insertion rod 37 to avoid the insertion rod 37 directly abrading the clamp frame 31, and at the same time increase the friction to prevent the insertion rod 37 from loosening, thereby achieving the purpose of effectively and quickly installing the wire.

[0033] The first wedge 21 and the second wedge 22 are placed on both sides of the wire, so that the wire is embedded in the mating gap of the first wedge groove 23 and the second wedge groove 24. The first wedge 21 and the second wedge 22 squeeze the wire through the first wedge groove 23 and the second wedge groove 24, and form a tight connection by utilizing the self-locking characteristic of the wedge structure. The first limiting rod 25 and the second limiting rod 26 are inserted into the top surface of the first wedge 21 and the second wedge 22 at the same time, which restricts the lateral displacement of the first wedge 21 and the second wedge 22 during the clamping process, thereby effectively preventing the wire from coming out.

[0034] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A wedge-shaped parallel groove clamp, comprising a base plate (1), characterized in that: The bottom plate (1) is provided with a snap-fit ​​device (2) symmetrically on one side of the top surface, and the bottom plate (1) is provided with a limiting device (3). The limiting device (3) includes symmetrically distributed card frames (31), which are hinged to each other. A card slot (34) is provided on one side of the card frame (31), and a limiting hole (36) is provided on the top surface of the card frame (31). A plug rod (37) is inserted into the inner wall of the limiting hole (36).

2. A wedge-shaped parallel groove clamp as described in claim 1, characterized in that: The snap-fit ​​device (2) includes a first wedge (21) and a second wedge (22). The first wedge (21) and the second wedge (22) are snapped together on opposite sides. A first wedge groove (23) is provided on one side of the first wedge (21), and a second wedge groove (24) is provided on one side of the second wedge (22). A first limiting rod (25) is inserted into the top surface of the first wedge (21), and a second limiting rod (26) is inserted into the top surface of the second wedge (22).

3. A wedge-shaped parallel groove clamp as described in claim 1, characterized in that: The top surface of the base plate (1) is threaded with multiple bolts (4) arranged in a rectangular array.

4. A wedge-shaped parallel groove clamp as described in claim 1, characterized in that: The inner wall of the card frame (31) is provided with a hinge (32), and both ends of the hinge (32) are fixedly connected to a limit plate (33).

5. A wedge-shaped parallel groove clamp as described in claim 1, characterized in that: Two wear-resistant pads (35) are fixedly connected to the top surface of the card frame (31).

6. A wedge-shaped parallel groove clamp as described in claim 2, characterized in that: The first wedge groove (23) is used in conjunction with the second wedge groove (24).

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