CN212518318U

CN212518318U - Strain clamp

Info

Publication number: CN212518318U
Application number: CN202020914915.4U
Authority: CN
Inventors: 王贺林; 吴忠; 徐治淮
Original assignee: Anhui Lin'an Electrical Equipment Co ltd
Current assignee: Anhui Lin'an Electrical Equipment Co ltd
Priority date: 2020-05-27
Filing date: 2020-05-27
Publication date: 2021-02-09
Anticipated expiration: 2030-05-27

Abstract

The utility model discloses a strain clamp, which relates to the technical field of hardware fittings and comprises a base plate, wherein the upper surface of the base plate is provided with a U-shaped clamping groove, the base plate is provided with a plurality of longitudinally arranged positioning structures, and the left side wall of the base plate is also provided with a limiting structure; the limiting structure comprises a limiting hole penetrating through the clamping rod, and a first positioning ring and a second positioning ring which are arranged on the left side wall of the substrate, the first positioning ring and the second positioning ring are respectively positioned on the upper side and the lower side of the clamping rod, a second spring is arranged on the lower surface of the second positioning ring, a pull plate is arranged at the lower end of the second spring, a limiting rod penetrating through the second spring is arranged on the pull plate, and the limiting rod penetrates through the second positioning ring, the limiting hole and the first positioning ring; the rear side wall of the base plate is provided with a positioning frame, and one end of the positioning frame, which is far away from the base plate, is connected with the hoop; the utility model has the advantages of convenient use, strong stability, long service life and the like.

Description

Strain clamp

Technical Field

The utility model relates to a technical field of gold utensil, in particular to strain clamp.

Background

The strain clamp is a hardware fitting used for fixing a lead to bear the tension of the lead and hanging the lead to a strain insulator-string group or a tower; strain clamps can be broadly classified into two types according to their structure and installation conditions. The first type: the strain clamp is required to bear all tensile force of the lead or the lightning conductor, the grip force of the clamp is not less than 90 of the rated tensile force of the installed lead or the lightning conductor, but the strain clamp is not used as an electric conductor; the wire clamp can be detached after the wire is installed and used additionally. The cable clamp comprises a bolt type strain clamp, a wedge type strain clamp and the like; the second type: the strain clamp can bear all the tensile force of the lead or the lightning conductor and also can be used as a conductor; therefore, once the wire clamp is installed, the wire clamp can not be disassembled any more, and the wire clamp is also called as a dead wire clamp; because of the electrical conductors, the installation of the wire clamps must be carefully performed in compliance with the regulations regarding installation procedures.

Patent application No. CN210326916U discloses a fixed strain clamp for an electric power transmission wire, which can clamp a cable inside a clamping groove by utilizing an organization structure of a clamping groove, a rubber sleeve, a stop block, a clamping column and a reset spring so as to ensure the stability of the strain clamp and prevent the strain clamp from falling off; but owing to the elasticity that adopts the spring will block in the post pushes away the draw-in groove in this patent, this has just led to pressing from both sides rocking of the wire of dress and also can drive the rubber sleeve and rock about, and nearly and drive the card post and rock for the life of spring reduces.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a strain clamp is provided for the card post easily receives rocking of cable and rocks, influence the life's of spring problem in the patent of description in the solution background art.

In order to achieve the above object, the present invention provides the following technical solutions: a strain clamp comprises a base plate, wherein a U-shaped clamping groove is formed in the upper surface of the base plate, a plurality of longitudinally-arranged positioning structures are arranged on the base plate, and a limiting structure is further arranged on the left side wall of the base plate; the limiting structure comprises a limiting hole penetrating through the clamping rod, and a first positioning ring and a second positioning ring which are arranged on the left side wall of the substrate, the first positioning ring and the second positioning ring are respectively positioned on the upper side and the lower side of the clamping rod, a second spring is arranged on the lower surface of the second positioning ring, a pull plate is arranged at the lower end of the second spring, a limiting rod penetrating through the second spring is arranged on the pull plate, and the limiting rod penetrates through the second positioning ring, the limiting hole and the first positioning ring; the rear side wall of the base plate is provided with a positioning frame, and one end, far away from the base plate, of the positioning frame is connected with the hoop.

Preferably: the utility model discloses a clamping device for a motor vehicle, including base plate, locating structure, clamping bar, locating groove, locating hole, baffle, locating hole, baffle, first spring and first spring sliding sleeve, locating structure is including setting up the constant head tank on the base plate right side wall, the left side inner wall of constant head tank is provided with first spring, first spring sliding sleeve locates on the outer periphery wall of horizontal clamping bar, the clamping bar slides and runs through the left side inner wall of constant head tank and stretches into in the draw-in groove, the position that corresponds the clamping bar on the left side wall of draw-in groove is provided with the locating hole that runs through this left.

Preferably: and one ends of the connecting rods, which are far away from the baffle, are connected with the push plate.

Preferably: the outer circumferential wall of the clamping rod is fixedly sleeved with a rubber sleeve, and the right end of the rubber sleeve extends into the positioning groove.

Preferably: and a plurality of second suction grooves are uniformly formed in the circumferential wall of the rubber sleeve.

Preferably: the inner wall of draw-in groove is provided with the one deck rubber pad, even on the rubber pad is provided with a plurality of first grooves of inhaling.

The beneficial effect of adopting above technical scheme is:

the limiting rod can penetrate through the limiting hole through the second spring, the limiting rod, the second positioning ring and the limiting hole, so that the clamping rod is limited to move, the clamping rod and a cable in the clamping groove can be prevented from shaking together, the first spring is prevented from being passively used for a long time, and the service life of the strain clamp is prolonged;

the rubber sleeve is provided with a second suction groove, and the rubber pad is provided with a first suction groove.

Drawings

Fig. 1 is a front view of the strain clamp of the present invention.

Fig. 2 is a lateral plan view of the strain clamp of the present invention.

Wherein: the device comprises a base plate 10, a clamping groove 11, a rubber pad 12, a first suction groove 13, a positioning structure 20, a positioning groove 21, a clamping rod 22, a first spring 23, a baffle plate 24, a positioning hole 25, a connecting rod 26, a pulling plate 27, a positioning frame 30, a rubber sleeve 40, a second suction groove 41, a limiting structure 50, a first positioning ring 51, a second positioning ring 52, a second spring 53, a pulling plate 54, a limiting rod 55, a limiting hole 56 and a hoop 60.

Detailed Description

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

In the embodiment, as shown in fig. 1-2, in the embodiment, a strain clamp includes a substrate 10, a U-shaped clamping groove 11 is disposed on an upper surface of the substrate 10, a plurality of positioning structures 20 arranged longitudinally are disposed on the substrate 10, and a limiting structure 50 is further disposed on a left side wall of the substrate 10; the limiting structure 50 comprises a limiting hole 56 penetrating through the clamping rod 22, and a first positioning ring 51 and a second positioning ring 52 which are arranged on the left side wall of the substrate 10, wherein the first positioning ring 51 and the second positioning ring 52 are respectively positioned at the upper side and the lower side of the clamping rod 22, a second spring 53 is arranged on the lower surface of the second positioning ring 52, a pulling plate 54 is arranged at the lower end of the second spring 53, a limiting rod 55 penetrating through the second spring 53 is arranged on the pulling plate 54, and the limiting rod 55 penetrates through the second positioning ring 52, the limiting hole 56 and the first positioning ring 51; the rear side wall of the base plate 10 is provided with a positioning frame 30, and one end of the positioning frame 30 far away from the base plate 10 is connected with the hoop 60.

Preferably: location structure 20 is including setting up constant head tank 21 on the base plate 10 right side wall, the left side inner wall of constant head tank 21 is provided with first spring 23, first spring 23 sliding sleeve locates on the outer circumferential wall of horizontal kelly 22, kelly 22 slides and runs through the left side inner wall of constant head tank 21 and stretches into in draw-in groove 11, the position that corresponds kelly 22 on the left side wall of draw-in groove 11 is provided with the locating hole 25 that runs through this left side wall, and kelly 22 runs through locating hole 25, the right-hand member of kelly 22 is provided with baffle 24, first spring 23 is connected with baffle 24, the right side wall of baffle 24 is provided with connecting rod 26.

Preferably: the ends of the connecting rods 26 remote from the baffle plate 24 are connected with a push plate 27.

Preferably: the outer circumferential wall of the clamping rod 22 is fixedly sleeved with a rubber sleeve 40, and the right end of the rubber sleeve 40 extends into the positioning groove 21.

Preferably: a plurality of second suction grooves 41 are uniformly arranged on the circumferential wall of the rubber sleeve 40.

Preferably: the inner wall of the clamping groove 11 is provided with a layer of rubber pad 12, and a plurality of first suction grooves 13 are uniformly formed in the rubber pad 12.

The specific implementation manner of this embodiment:

when the cable clamping device is used, the pulling plate 54 is pulled downwards firstly, the limiting rod 55 moves downwards until the limiting rod 55 leaves the position of the limiting hole 56, then the pushing plate 27 is pulled rightwards, the pushing plate 27 drives the baffle plate 24 to move rightwards through the connecting rod 26, the baffle plate 24 enables the first spring 23 to extend until the left end of the clamping rod 22 leaves the positioning hole 25 and enters the clamping groove 11, then a cable is placed in the clamping groove 11, then the pushing plate 27 is released, the clamping rod 22 is pushed leftwards again under the elastic action of the first spring 23, the left end of the clamping rod 22 penetrates through the positioning hole 25 and returns to the original position, then the pulling plate 54 is released, and under the action of the second spring 53, the clamping rod 22 penetrates through the second positioning ring 52, the limiting hole 56 and the first positioning ring 51.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and improvements can be made without departing from the inventive concept, and all of them belong to the protection scope of the present invention.

Claims

1. The utility model provides a strain clamp, includes the base plate, its characterized in that: the upper surface of the base plate is provided with a U-shaped clamping groove, the base plate is provided with a plurality of longitudinally arranged positioning structures, and the left side wall of the base plate is also provided with a limiting structure; the limiting structure comprises a limiting hole penetrating through the clamping rod, and a first positioning ring and a second positioning ring which are arranged on the left side wall of the substrate, the first positioning ring and the second positioning ring are respectively positioned on the upper side and the lower side of the clamping rod, a second spring is arranged on the lower surface of the second positioning ring, a pull plate is arranged at the lower end of the second spring, a limiting rod penetrating through the second spring is arranged on the pull plate, and the limiting rod penetrates through the second positioning ring, the limiting hole and the first positioning ring; the rear side wall of the base plate is provided with a positioning frame, and one end, far away from the base plate, of the positioning frame is connected with the hoop.

2. The strain clamp according to claim 1, wherein the positioning structure comprises a positioning groove disposed on a right side wall of the base plate, a first spring is disposed on a left inner wall of the positioning groove, the first spring is slidably sleeved on an outer circumferential wall of the transverse clamping rod, the clamping rod slidably penetrates through the left inner wall of the positioning groove and extends into the clamping groove, a positioning hole penetrating through the left side wall is disposed on a left side wall of the clamping groove corresponding to the clamping rod, the clamping rod penetrates through the positioning hole, a baffle is disposed at a right end of the clamping rod, the first spring is connected to the baffle, and a connecting rod is disposed on a right side wall of the baffle.

3. The strain clamp of claim 2, wherein the ends of the plurality of connecting rods remote from the retainer are connected to the push plate.

4. The strain clamp as claimed in claim 3, wherein the clamping rod is provided with a rubber sleeve fixed on the outer circumferential wall thereof, and the right end of the rubber sleeve extends into the positioning groove.

5. The strain clamp as claimed in claim 4, wherein the circumferential wall of the rubber sleeve is uniformly provided with a plurality of second suction grooves.

6. The strain clamp according to claim 5, wherein a rubber pad is disposed on an inner wall of the clamping groove, and a plurality of first suction grooves are uniformly disposed on the rubber pad.