CN219833043U

CN219833043U - Parallel groove clamp

Info

Publication number: CN219833043U
Application number: CN202321340138.7U
Authority: CN
Inventors: 陶祥斌; 甘志立
Original assignee: Zhejiang Yuegu Electric Power Technology Co ltd
Current assignee: Zhejiang Yuegu Electric Power Technology Co ltd
Priority date: 2023-05-30
Filing date: 2023-05-30
Publication date: 2023-10-13
Anticipated expiration: 2033-05-30

Abstract

The utility model provides a parallel groove wire clamp which comprises an upper clamping plate and a lower clamping plate, wherein the upper clamping plate and the lower clamping plate are fixedly connected through screws and nuts, a groove is formed in a clamping surface of the upper clamping plate and/or the lower clamping plate, a spring is horizontally arranged in the groove along the length direction of the groove, the parallel groove wire clamp further comprises a clamping piece with an arc-shaped section, two encircling parts are arranged on the clamping piece, and the two encircling parts encircle two radial sides of the spring. The elastic clamping can be formed by the spring and the clamping piece, so that even if cold shrinkage deformation occurs, the elastic clamping can be used for eliminating the occurrence of loosening.

Description

Parallel groove clamp

Technical Field

The utility model relates to the technical field of wire clamps, in particular to a parallel groove wire clamp.

Background

The parallel groove clamp is mainly used for interconnecting wires in power line engineering and is suitable for connecting stranded wires with medium and small sections at positions which are not under tension. The performance quality of the parallel groove clamp is one of important factors influencing the power supply reliability of the power line engineering.

A parallel groove clamp as disclosed in patent No. 2020204734081, and referring to fig. 1, is mainly composed of two clamping plates, the two clamping plates are connected by a screw, which is a common parallel groove clamp in the prior art, and a cable is clamped and fixed between the two clamping plates.

However, when the cable is electrified and works, heat is generated, the parts are heated and easily generate thermal expansion, the parts are mutually extruded, after cooling, the parts are easily generate cold contraction, and the connection between the clamping plate and the screw and the connection between the clamping plate and the clamping plate are loose.

Disclosure of Invention

In view of the problems identified in the background art, the present utility model proposes a parallel groove clamp that is provided with a spring to apply a clamping spring force, by which the occurrence of looseness is eliminated.

The technical scheme of the utility model is realized as follows:

the utility model provides a parallel groove clamp, includes punch holder and lower plate, punch holder and lower plate pass through screw and nut fixed connection, are equipped with the recess on the clamping face of punch holder and/or lower plate, lie in along its length direction in the recess and be equipped with the spring, still include the cross-section for curved grip block, be equipped with two encircling portions on the grip block, two encircling portions encircle in the radial both sides of spring.

The utility model is further arranged that the side walls of the two ends of the groove in the length direction are respectively provided with a convex connecting column, and the two connecting columns are respectively inserted into the two ends of the spring.

The utility model is further arranged that the end part of the encircling part is arranged at intervals with the bottom of the groove.

The utility model is further arranged in such a way that the encircling part is arranged at intervals with the side wall of the groove in the width direction.

The utility model is further arranged such that the distance between the ends of the two embracing portions is smaller than the diameter of the spring.

The utility model is further characterized in that the outer side wall of the encircling part is provided with a reinforcing rib connected with the clamping piece.

The utility model further provides that the clamping piece is arranged at intervals with the clamping surface of the upper clamping plate and/or the lower clamping plate.

By adopting the technical scheme, the utility model has the beneficial effects that:

(1) The spring and the clamping piece can form elastic clamping, so that even if cold shrinkage deformation occurs, the elastic clamping can eliminate the occurrence of loosening.

(2) The spring is arranged horizontally, when the cable is clamped, the spring deforms along the radial direction of the cable, and by adopting the arrangement, the contact area between the spring and the clamping piece is large, so that the stress of each position on the clamping piece can be correspondingly received by using one spring.

(3) The spring is fixed in the groove through the connecting column, and the clamping piece is held by the encircling part and is fixed on the spring, so that the clamping piece and the spring cannot fall out of the clamping plate.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a conventional parallel groove clamp.

Fig. 2 is a schematic structural view of a parallel groove clamp according to the present utility model.

Fig. 3 is a schematic structure of a top view of the lower clamping plate of the present utility model.

Fig. 4 is a schematic view of the structure of the clamping plate and the spring of the present utility model.

Fig. 5 is a second schematic structural view of the clamping plate and the spring of the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model is illustrated below with reference to fig. 1-5:

example 1: the parallel groove wire clamp comprises an upper clamping plate 1 and a lower clamping plate 2, wherein the middle parts of the upper clamping plate 1 and the lower clamping plate 2 are fixedly connected through a screw 3 and a nut 4, the parallel groove wire clamp is in the prior art, and the following improvement technical scheme is as follows:

be equipped with recess 5 on the grip face of punch holder 1 and lower plate 2 respectively, recess 5 sets up along the length direction of punch holder 1 and lower plate 2, lie in along its length direction in the recess 5 and be equipped with spring 6, be equipped with convex spliced pole 7 on the lateral wall at the both ends of recess 5 length direction respectively, two spliced poles 7 insert the both ends of spring 6 respectively, under the natural state, the length of spring 6 equals the length of recess 5, fix a position spring 6 through spliced pole 7, restrict the spring 6 and fix in recess 5 for spring 6 can not fall out recess 5.

Still including the cross-section for curved grip tab 8, grip tab 8 sets up on the grip face of punch holder 1 and lower plate 2, and grip tab 8 sets up with the grip face interval of punch holder 1 and lower plate 2, is equipped with two encircling portion 9 on the grip tab 8, and two encircling portion 9 encircle in the radial both sides of spring 6. The tip of embracing portion 9 sets up with the bottom interval of recess 5, and the lateral wall interval of embracing portion 9 and the width direction of recess 5 sets up, and the distance between the tip of two embracing portions 9 is less than the diameter of spring 6, and this setting makes centre gripping piece 8 can connect on spring 6 with the help of embracing portion 9, can not fall out from spring 6. When the upper clamping plate 1 and the lower clamping plate 2 clamp the cable, the two clamping pieces 8 clamp the cable, the spring 6 is extruded to generate elastic deformation during clamping, and meanwhile, the spring 6 stretches the two encircling parts 9, so that two ends of the arc-shaped clamping pieces 8 are close to the middle, and further the cable is clamped and fixed.

The outer side wall of the encircling part 9 is provided with the reinforcing ribs 10 connected with the clamping pieces 8, the reinforcing ribs 10 can strengthen the connection structure strength of the encircling part 9 and the clamping pieces 8, and particularly when the encircling part 9 deforms, the clamping pieces 8 can be forced by the reinforcing ribs 10, so that the two ends of the clamping pieces 8 are helped to be close to each other to clamp.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather to enable any modification, equivalent replacement, improvement or the like to be made within the spirit and principles of the utility model.

Claims

1. The utility model provides a parallel groove clamp, includes punch holder and lower plate, punch holder and lower plate pass through screw and nut fixed connection, its characterized in that: the clamping surface of the upper clamping plate and/or the lower clamping plate is provided with a groove, a spring is arranged in the groove along the length direction of the groove in a lying mode, the clamping plate further comprises a clamping piece with an arc-shaped section, two encircling parts are arranged on the clamping piece, and the two encircling parts encircle the two radial sides of the spring.

2. The parallel groove clamp according to claim 1, wherein: the side walls at two ends of the groove in the length direction are respectively provided with a convex connecting column, and the two connecting columns are respectively inserted into two ends of the spring.

3. A parallel groove clamp according to claim 2, characterized in that: the end part of the encircling part is arranged at intervals with the bottom of the groove.

4. A parallel groove clamp according to claim 2, characterized in that: the encircling part is arranged with the side wall of the groove in the width direction at intervals.

5. A parallel groove clamp according to claim 2, characterized in that: the distance between the ends of the two embracing portions is smaller than the diameter of the spring.

6. The parallel groove clamp according to claim 1, wherein: the outer side wall of the encircling part is provided with a reinforcing rib connected with the clamping piece.

7. A parallel groove clamp according to claim 2, characterized in that: the clamping sheets are arranged at intervals with the clamping surfaces of the upper clamping plate and/or the lower clamping plate.