CN219918351U

CN219918351U - Anti-loosening strain clamp structure

Info

Publication number: CN219918351U
Application number: CN202321341331.2U
Authority: CN
Inventors: 余佳瑞; 马迁; 曹佳
Original assignee: Maanshan Huaneng Electric Power Line Accessories Co ltd
Current assignee: Maanshan Huaneng Electric Power Line Accessories Co ltd
Priority date: 2023-05-30
Filing date: 2023-05-30
Publication date: 2023-10-27
Anticipated expiration: 2033-05-30

Abstract

The utility model provides a locking type strain clamp structure, which relates to the technical field of strain clamps and comprises a strain clamp body, wherein an extrusion sliding plate is arranged in the strain clamp body, an inner extrusion sliding block is connected in the extrusion sliding plate in a sliding manner, a first limiting convex ring is fixedly connected to the upper end of the inner extrusion sliding block, a second limiting convex ring is fixedly connected to the upper end of the inside of the extrusion sliding plate, connecting grooves are formed in the second limiting convex ring and the inside of the first limiting convex ring, and an extrusion spring is fixedly connected between the two connecting grooves. According to the utility model, through the arrangement of the extrusion springs, the wires can be extruded and installed all the time through the elasticity of the extrusion springs so as to prevent loosening, so that the stability in use is improved, and the design of the first limiting convex ring and the second limiting convex ring is used for improving the limiting effect on the extrusion springs and improving the installation stability of the extrusion springs.

Description

Anti-loosening strain clamp structure

Technical Field

The utility model relates to the technical field of strain clamps, in particular to an anti-loosening strain clamp structure.

Background

The strain clamp is used for fixing a wire to bear the tension of the wire and hanging the wire to a strain string or a hardware fitting on a pole tower. Strain clamps can be broadly divided into two categories depending on the structure and installation conditions. First category: the strain clamp is to bear the whole tensile force of the wire or the lightning conductor, and the grip strength of the clamp is not less than 90 percent of the rated tensile resistance of the mounted wire or the lightning conductor, but is not used as an electric conductor. The wire clamp can be detached after the wire is installed and used separately. The wire clamps comprise bolt type strain clamps, wedge type strain clamps and the like. The second category: the strain clamp is used as a conductor besides bearing all the tensile force of the lead or the lightning conductor. Therefore, once installed, such clamps cannot be removed again, also known as dead clamps. Because of the electrical conductors, the installation of the clamps must be carefully performed in compliance with regulations concerning the installation operation.

In the prior art, as disclosed in chinese patent CN218526058U, a strain clamp structure is disclosed, including the strain clamp body, the top surface of strain clamp body is close to edge and runs through and be provided with fastening bolt, and fastening nut is admittedly equipped with to the top surface of strain clamp body, and the bottom surface fixed mounting of strain clamp body has the lug, and the surface of lug runs through and is provided with the slide bar.

But among the prior art, strain clamp is when the centre gripping is used, is most to directly use the metal extrusion spare to extrude the installation to the circuit, and along with weather temperature's difference, the circuit can lead to extrusion dynamics to reduce when weather temperature reduces according to expend with heat and contract with cold, produces not hard up, because strain clamp is located aloft, and workman climbing danger is great, is inconvenient for in time adjusting.

Disclosure of Invention

The utility model aims to solve the problems that in the prior art, when a strain clamp is clamped and used, a metal extrusion part is directly used for extruding and installing a circuit, and according to different weather temperatures, the extrusion force of the circuit is reduced to generate looseness when the weather temperature is reduced due to expansion and contraction, and because the strain clamp is positioned in a high altitude, the risk of climbing by workers is high and timely adjustment is inconvenient.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a locking type strain clamp structure, includes the strain clamp body, the inside of strain clamp body is provided with the extrusion slide, the inside sliding connection of extrusion slide has interior extrusion slider, the upper end fixedly connected with spacing bulge loop No. one of interior extrusion slider, the inside upper end fixedly connected with No. two spacing bulge loops of extrusion slide, the spread groove has all been seted up to the inside of No. two spacing bulge loops and No. one spacing bulge loop, two fixedly connected with extrusion spring between the spread groove, the lower extreme fixedly connected with installation arch of interior extrusion slider.

Preferably, a protective rubber pad is arranged below the inner extrusion sliding block, an installation clamping groove is formed in the upper end of the protective rubber pad, and the installation clamping groove is clamped with the installation protrusion.

Preferably, the upper end of the extrusion slide plate is provided with a limiting end groove.

Preferably, a connecting hole is formed above the middle part of one side of the strain clamp body.

Preferably, the upper ends of two sides of the strain clamp body are fixedly connected with side connecting frames, and limiting rings are connected inside the side connecting frames in a sliding manner.

Preferably, the limiting ring is clamped with the limiting end groove, and the lower end of the limiting ring is connected with a nut in a threaded mode.

Compared with the prior art, the utility model has the advantages and positive effects that:

1. according to the utility model, through the arrangement of the extrusion spring, the electric wire can be extruded and installed all the time through the elasticity of the extrusion spring in the use process, so that loosening is prevented, the stability in use is improved, and the design of the first limiting convex ring and the second limiting convex ring is used for improving the limiting effect on the extrusion spring and improving the installation stability of the extrusion spring.

2. According to the utility model, through the arrangement of the mounting protrusions and the protective rubber pad, the outer surface of the electric wire can be protected through the protective rubber pad when the electric wire is extruded and mounted, and uneven extrusion can be formed on the surface of the electric wire through extrusion of the mounting protrusions, so that the extrusion stability is improved, and the connection stability is improved.

Drawings

Fig. 1 is a schematic perspective view of an anti-loosening strain clamp structure according to the present utility model;

FIG. 2 is an explosion schematic diagram of a connection structure between an extrusion slide plate and an inner extrusion slide block in an anti-loosening strain clamp structure according to the present utility model;

fig. 3 is a schematic perspective view of an inner extrusion slider in a structure of an anti-loosening strain clamp according to the present utility model;

fig. 4 is a schematic perspective view of an extrusion slide plate in a structure of an anti-loose strain clamp according to the present utility model.

Legend description: 1. a strain clamp body; 2. a connection hole; 3. a confinement ring; 4. a side connection rack; 5. a nut; 6. extruding the sliding plate; 7. an inner extrusion sliding block; 8. a protective rubber pad; 9. limiting the end groove; 10. installing a clamping groove; 11. a first limiting convex ring; 12. extruding a spring; 13. mounting the bulge; 14. a second limiting convex ring; 15. and a connecting groove.

Detailed Description

In order that the above objects, features and advantages of the utility model will be more clearly understood, a further description of the utility model will be rendered by reference to the appended drawings and examples. It should be noted that, without conflict, the embodiments of the present utility model and features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced otherwise than as described herein, and therefore the present utility model is not limited to the specific embodiments of the disclosure that follow.

1, as shown in fig. 1-4, the utility model provides a locking type strain clamp structure, which comprises a strain clamp body 1, wherein an extrusion slide plate 6 is arranged in the strain clamp body 1, an inner extrusion slide block 7 is slidably connected in the extrusion slide plate 6, a first limiting convex ring 11 is fixedly connected to the upper end of the inner extrusion slide block 7, a second limiting convex ring 14 is fixedly connected to the upper end of the inner part of the extrusion slide plate 6, connecting grooves 15 are respectively formed in the second limiting convex ring 14 and the first limiting convex ring 11, an extrusion spring 12 is fixedly connected between the two connecting grooves 15, and a mounting protrusion 13 is fixedly connected to the lower end of the inner extrusion slide block 7.

The specific setting and effect of this embodiment are specifically said below, through the setting of extrusion spring 12, can be in the use, through extrusion spring 12's elasticity, guarantee can be always to the electric wire extrusion installation to prevent not hard up, thereby stability when increasing the use, through the design of spacing bulge loop 11 No. one and No. two spacing bulge loops 14, be used for increasing the spacing effect to extrusion spring 12, increase extrusion spring 12 installation's stability.

Embodiment 2, as shown in fig. 1-4, the below of interior extrusion slider 7 is provided with protection rubber pad 8, installation draw-in groove 10 has been seted up to protection rubber pad 8's upper end, installation draw-in groove 10 and the protruding 13 joint of installation, restriction end groove 9 has been seted up to extrusion slide 6's upper end, connecting hole 2 has been seted up to one side middle part top of strain clamp body 1, the equal fixedly connected with side link 4 of both sides upper end of strain clamp body 1, the inside sliding connection of side link 4 has restriction ring 3, restriction ring 3 and restriction end groove 9 joint, the lower extreme threaded connection of restriction ring 3 has nut 5.

The effect that its whole embodiment reached is, through the setting of installation protruding 13 with protection rubber pad 8, can be when carrying out extrusion installation to the electric wire, can protect the surface of electric wire through protection rubber pad 8, and through the extrusion of installation protruding 13, can form the extrusion of unevenness on the electric wire surface to increase extrusion stability, can increase connection stability.

Working principle: during installation, an electric wire passes through the strain clamp body 1, then the protective rubber pad 8 is contacted with the electric wire, then two ends of the limiting ring 3 are respectively inserted into the side connecting frames 4 on two sides of the strain clamp body 1, the nut 5 is used for being in threaded connection with the limiting ring 3, the length of the connection between the nut 5 and the limiting ring 3 is controlled, the installation length of the protective rubber pad 8 and a circuit is controlled to control extrusion force, and when the environmental temperature changes, the elastic property of the extrusion spring 12 can be used for ensuring that the protective rubber pad 8 can always extrude the circuit and prevent looseness.

The present utility model is not limited to the above embodiments, and any equivalent embodiments which can be changed or modified by the technical disclosure described above can be applied to other fields, but any simple modification, equivalent changes and modification to the above embodiments according to the technical matter of the present utility model will still fall within the protection scope of the technical disclosure.

Claims

1. The utility model provides a locking strain clamp structure, includes strain clamp body (1), its characterized in that: the inside of strain clamp body (1) is provided with extrusion slide (6), the inside sliding connection of extrusion slide (6) has interior extrusion slider (7), the upper end fixedly connected with spacing bulge loop (11) of interior extrusion slider (7), the inside upper end fixedly connected with of extrusion slide (6) is spacing bulge loop (14) No. two, connecting groove (15) have all been seted up to the inside of spacing bulge loop (14) No. two and spacing bulge loop (11), two fixedly connected with extrusion spring (12) between connecting groove (15), the lower extreme fixedly connected with installation arch (13) of interior extrusion slider (7).

2. The anti-loosening strain clamp structure according to claim 1, wherein: the lower part of interior extrusion slider (7) is provided with protection rubber pad (8), installation draw-in groove (10) have been seted up to the upper end of protection rubber pad (8), installation draw-in groove (10) and installation protruding (13) joint.

3. The anti-loosening strain clamp structure according to claim 1, wherein: the upper end of the extrusion sliding plate (6) is provided with a limiting end groove (9).

4. The anti-loosening strain clamp structure according to claim 1, wherein: and a connecting hole (2) is formed above the middle part of one side of the strain clamp body (1).

5. The anti-loosening strain clamp structure according to claim 1, wherein: the strain clamp is characterized in that side connecting frames (4) are fixedly connected to the upper ends of two sides of the strain clamp body (1), and limiting rings (3) are connected to the inside of the side connecting frames (4) in a sliding mode.

6. The anti-loosening strain clamp structure according to claim 5, wherein: the limiting ring (3) is clamped with the limiting end groove (9), and the lower end of the limiting ring (3) is connected with a nut (5) in a threaded mode.