Self-locking strain splicing sleeve for overhead line

Abstract

The utility model discloses a self-locking strain splicing sleeve for an overhead line, and belongs to the technical field of overhead strain clamps. Comprising a suspension wire clamp assembly, and a wiring pipe assembly is rotatably arranged on the suspension wire clamp assembly. The wiring pipe assembly comprises angle-shaped plate springs which are symmetrically arranged on the left side and the right side and can be pressed inwards, the inner walls of the left side and the right side of each angle-shaped plate spring are each provided with a pressing pipe, and the inner wall of each pressing pipe is provided with at least one self-locking ratchet strip. The pressing pipes are provided with matched clamping hoops, and the pressing pipes on the left side and the right side can be pressed or loosened through the clamping hoops. According to the utility model, when a single wire joint is connected and hung, the direction of the wiring pipe assembly is adjusted according to needs, then the wire joint is placed in the pressing pipe and the clamping hoop is locked, when the wire joint is pulled down, the wire joint is locked by the self-locking ratchet strip and is not easy to fall off, and meanwhile, the wiring pipe assembly can be lapped on the bearing wire through the insulating operating rod, so that the operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of overhead tension line clamps, in particular to a self-locking tension connection pipe for overhead lines. Background Art

[0002] Connecting fittings are used to connect conductors and can meet the mechanical and electrical performance requirements of the conductors. They are divided into load-bearing connecting fittings and non-load-bearing connecting fittings. Overhead lines of transmission lines need to be connected with connecting fittings. For conductors, connecting fittings must not only connect the current path well, but also bear the tension of the conductors.

[0003] Existing tension-resistant joint tubes are all joint-connecting type joint tubes for two conductors. This type of joint tube cannot meet the needs of joint connection and suspension of single conductor joints. Currently, the joint connection and suspension of single conductors are mostly achieved through suspension wire clamps, but the suspension direction of the suspension wire clamps is horizontal and cannot be adjusted, and the suspension wire clamps have no self-locking function. Utility Model Content

[0004] The main purpose of the utility model is to provide an overhead line self-locking tension-resistant joint pipe, aiming to solve the technical problems that the prior art cannot meet the connection and suspension of a single wire joint and the suspension direction cannot be changed.

[0005] To achieve the above object, the utility model provides an overhead line self-locking tension-resistant joint pipe, comprising a suspension clamp assembly, on which a wiring pipe assembly is rotatably mounted;

[0006] The wiring tube assembly comprises an angular leaf spring symmetrically arranged on the left and right sides and capable of being pressed inwards, a pressing tube is respectively provided on the inner walls of the left and right sides of the angular leaf spring, and at least one self-locking ratchet strip is provided on the inner wall of the pressing tube;

[0007] The pressing tube is provided with an adapted clamp, and the pressing tubes on the left and right sides can be compressed or loosened by the clamp.

[0008] Furthermore, the suspension wire clamp assembly includes an upper clamp block, which is provided with at least three angle adjustment holes with equal angular distances. The angular leaf spring is rotatably mounted on the upper clamp block via a rotating shaft; the angular leaf spring is also detachably mounted in the angle adjustment hole via bolts.

[0009] Furthermore, each of the pressure tubes is fixed to the angular leaf spring via two connecting parts, and the clamp is wrapped around the periphery of the pressure tube between the connecting parts.

[0010] Furthermore, the upper clamping block is also provided with a V-shaped clamping opening and an adjustment platform, and the adjustment platform is provided with a lower clamping block that can be adjusted to be clamped and loosened through an adjustment screw, and the lower clamping block is installed directly below the V-shaped clamping opening.

[0011] Furthermore, the cross-section of the self-locking ratchet strip is an obtuse triangle, and the top angle is inclined upward.

[0012] Furthermore, an insulating rod lap ring is provided at the bottom of the adjusting screw.

[0013] The beneficial effects of the utility model are embodied in:

[0014] In the utility model, when connecting and hanging a single wire joint, the direction of the wiring tube assembly is first adjusted as needed, and then the wire joint is placed in the pressure tube and the clamp is locked. When the wire joint is pulled down, it will be locked by the self-locking spine and is not easy to fall off. At the same time, the wiring tube assembly can be overlapped on the load-bearing line through the insulating operating rod, which is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 for Figure 1 A front view of

[0017] Figure 3 It is a schematic diagram of the rear three-dimensional structure of the utility model;

[0018] Figure 4 A schematic diagram of the full cross-section structure of the wiring tube assembly.

[0019] Description of reference numerals:

[0020] 10. Suspension wire clamp assembly, 101. upper clamp block, 101a. V-shaped clamping opening, 101b. adjustment platform, 101c. angle adjustment hole, 102. lower clamp block, 103. adjustment screw, 104. rotating shaft;

[0021] 20. Wiring tube assembly, 201. angular leaf spring, 201a. connecting portion, 202. pressing tube, 202a. self-locking ratchet strip, 203. clamp, 204. bolt. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0024] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or schemes that satisfy both A and B. In addition, "multiple" refers to more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist.

[0025] See also Figures 1 to 4 The utility model discloses an overhead line self-locking tension-resistant joint pipe, comprising a suspension clamp assembly 10, on which a wiring pipe assembly 20 is rotatably mounted;

[0026] The wiring tube assembly 20 includes an angular leaf spring 201 symmetrically arranged on the left and right sides and capable of being pressed inwards, a pressing tube 202 is provided on each inner wall of the left and right sides of the angular leaf spring 201, and at least one self-locking ratchet strip 202a is provided on the inner wall of the pressing tube 202;

[0027] The pressing tube 202 is provided with an adaptable clamp 203 , and the pressing tubes 202 on the left and right sides can be compressed or loosened by the clamp 203 .

[0028] How it works

[0029] When in use, first adjust the direction of the wiring tube assembly through the bolts and the angle adjustment holes according to the hanging direction of the wire connector. After the direction is adjusted, put the wire to be connected into the pressure tube, and then tighten the pressure tube with the clamp.

[0030] After the wire is tightened, the suspension clamp assembly can be overlapped on the load-bearing wire through the insulating rod.

[0031] The clamp can be purchased from the market and can be a tubular clamp without any other limitation.

[0032] In some embodiments, see Figure 2As shown, the suspension wire clamp assembly 10 includes an upper clamp block 101, and the upper clamp block 101 is provided with at least three angle adjustment holes 101c with equal angular distances. The angular leaf spring 201 is rotatably mounted on the upper clamp block 101 via a rotating shaft 104; the angular leaf spring 201 is also detachably mounted in the angle adjustment hole 101c via a bolt 204.

[0033] In some embodiments, see Figure 1 As shown, each of the pressing tubes 202 is fixed to the angular leaf spring 201 through two connecting parts 201a, and the clamp 203 is wound around the outer periphery of the pressing tube 202 between the connecting parts 201a. This design facilitates the installation of the clamp, and when it is loosened, the clamp will not fall off, which is convenient for subsequent operations.

[0034] In some embodiments, see Figure 1 and 2 As shown, the upper clamping block 101 is also provided with a V-shaped clamping opening 101a and an adjusting platform 101b. The adjusting platform 101b is provided with a lower clamping block 102 which can be adjusted to be clamped and loosened via an adjusting screw 103. The lower clamping block 102 is installed directly below the V-shaped clamping opening 101a.

[0035] In some embodiments, see Figure 1 As shown, the cross section of the self-locking ratchet bar 202a is an obtuse triangle, and the top angle is inclined upward. In this way, after the pressure tube is tightened, the self-locking ratchet bar can clamp the wire to prevent the wire from falling off after a long time or when it is acted upon by external force.

[0036] In some embodiments, see Figure 1 As shown, an insulating rod lap ring is provided at the bottom of the adjusting screw 103 .

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A self-locking tension-resistant joint pipe for overhead lines, comprising a suspension clamp assembly (10), characterized in that , the hanging wire clamp assembly (10) is rotatably provided with a wiring tube assembly (20); The wiring tube assembly (20) comprises an angular leaf spring (201) symmetrically arranged on the left and right sides and capable of being pressed inwards, a pressing tube (202) being provided on each of the inner walls on the left and right sides of the angular leaf spring (201), and at least one self-locking spine (202a) being provided on the inner wall of the pressing tube (202); The pressing tube (202) is provided with an adapted clamp (203), and the pressing tubes (202) on the left and right sides can be compressed or loosened by the clamp (203).

2. The self-locking tension-resistant joint pipe for overhead lines according to claim 1, characterized in that: The suspension wire clamp assembly (10) comprises an upper clamp block (101), the upper clamp block (101) being provided with at least three angle adjustment holes (101c) at equal angular intervals, the angular leaf spring (201) being rotatably mounted on the upper clamp block (101) via a rotating shaft (104); the angular leaf spring (201) is also detachably mounted in the angle adjustment hole (101c) via a bolt (204).

3. The self-locking tension-resistant joint pipe for overhead lines according to claim 1, characterized in that: Each of the pressing tubes (202) is fixed to the angular leaf spring (201) via two connecting portions (201a), and the clamp (203) is wound around the periphery of the pressing tube (202) between the connecting portions (201a).

4. The self-locking tension-resistant joint pipe for overhead lines according to claim 2, characterized in that: The upper clamping block (101) is also provided with a V-shaped clamping opening (101a) and an adjustment platform (101b); the adjustment platform (101b) is provided with a lower clamping block (102) that can be adjusted to be clamped and loosened via an adjustment screw (103); the lower clamping block (102) is installed directly below the V-shaped clamping opening (101a).

5. The self-locking tension-resistant joint pipe for overhead lines according to claim 1, characterized in that: The cross section of the self-locking ratchet strip (202a) is an obtuse triangle, with the top angle obliquely facing upwards.

6. The self-locking tension-resistant joint pipe for overhead lines according to claim 4, characterized in that: An insulating rod lap ring is provided at the bottom of the adjusting screw rod (103).

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