Anti-falling self-locking power transmission line fitting

By designing anti-detachment self-locking transmission line fittings, the problems of limited specifications and poor self-locking performance of traditional fittings have been solved. This enables adaptive adjustment and self-locking fixation of the fittings, thereby improving the stability and safety of transmission lines.

CN224123859UActive Publication Date: 2026-04-14ANHUI QINGCHEN ENERGY TECHNOLOGY CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-25
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Traditional hardware has limited specifications and dimensions, making it difficult to adapt to changes in power transmission line diameter, tension, and environment. Furthermore, it has poor self-locking performance and is prone to loosening and falling off.

Method used

A self-locking transmission line fitting designed to prevent detachment includes an adjustment unit, a connection unit, and a positioning unit. Through multi-point docking and the cooperation of spring components, it achieves self-locking fixation and length adjustment.

Benefits of technology

It achieves adaptive adjustment and self-locking fixation of the fittings, ensuring that they do not loosen or fall off under different installation conditions, thus improving the stability and safety of the connection.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224123859U_ABST
    Figure CN224123859U_ABST
Patent Text Reader

Abstract

The utility model discloses an anti-drop self-locking power transmission line fitting, which relates to the technical field of electric power fittings and comprises a first joint, an adjusting unit butted with the end part of the first joint, a connecting unit butted in the adjusting unit and extending out, a positioning unit fixedly connected with the end part of the connecting unit, and a second joint butted with the end part of the positioning unit, the first butt joint sleeve is in butt joint with the end of the first connector, the clamping opening is formed in the first butt joint sleeve, the fixing base is fixedly connected into the first butt joint sleeve, and the first spring piece is fixedly connected to the fixing base. The threaded rod extends out of the first butt joint sleeve in a butt joint mode, and the threaded rod is sleeved with the adjusting nut in a threaded mode. According to the utility model, the adaptive adjustment of the fitting is realized through the adjusting unit; the hardware fitting is clamped quickly through the positioning unit, multiple sets of positioning points are arranged, it is guaranteed that after butt joint of the hardware fitting is completed, mutual self-locking and fixing between structures can be achieved through internal positioning pieces, and it is guaranteed that the hardware fitting is not disengaged after butt joint.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of power accessories technology, specifically to anti-detachment self-locking transmission line hardware. Background Technology

[0002] In power transmission systems, transmission lines (such as steel-cored aluminum stranded wire, carbon fiber conductors, etc.) and fittings such as suspension clamps, tension clamps, and splicing pipes are interdependent key components. As conductors, transmission lines need to have excellent conductivity, mechanical strength, and environmental resistance, such as wind resistance, ice resistance, and corrosion resistance. Fittings, on the other hand, provide mechanical support, electrical connection, and protection to ensure the safe and stable operation of transmission lines.

[0003] Traditional hardware is usually crimped with bolts; however, it still has the following shortcomings during operation:

[0004] 1. Traditional hardware has relatively simple specifications and dimensions. When the diameter, tension or environmental conditions of the power transmission line change, it is often necessary to replace the hardware with different models or adopt additional compensation measures. This not only increases material consumption, but also complicates construction.

[0005] 2. Traditional fittings often use single-point connection, such as single bolt fastening or single-sided crimping. Their self-locking performance is poor. Under the influence of long-term wind vibration, temperature difference changes or mechanical vibration, they are prone to loosening or even falling off. Once a critical node of the fitting is damaged, the stability of the entire connection structure will be seriously affected. Utility Model Content

[0006] The purpose of this utility model is to provide anti-detachment self-locking transmission line hardware to solve the problems raised in the prior art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a self-locking anti-detachment transmission line fitting, comprising: a first connector, an adjustment unit connected to the end of the first connector, a connecting unit connected to and extending from the adjustment unit, a positioning unit fixed to the end of the connecting unit, and a second connector connected to the end of the positioning unit; an adjustment unit, a first connecting sleeve connected to the end of the first connector, a snap-fit ​​interface disposed within the first connecting sleeve, a fixed seat fixed to the first connecting sleeve, and a first spring member fixed to the fixed seat; a connecting unit, a threaded rod extending from the first connecting sleeve, an adjusting nut threaded onto the threaded rod, and a snap-fit ​​head fixed to the inner end of the threaded rod and assembled with the snap-fit ​​interface; a positioning unit, a second connecting sleeve fixed to the end of the threaded rod, two sets of snap-fit ​​cavities disposed within the second connecting sleeve, a plug connector connected to the second connecting sleeve and installed and connected to the second connector, an installation chamber disposed within the plug connector, two sets of second spring members fixed to the installation chamber, and a snap-fit ​​head fixed to the end of the second spring member and connected to the snap-fit ​​cavity.

[0008] As a preferred embodiment, the top and bottom of the second docking sleeve are provided with a second docking interface, which is connected to the snap-fit ​​cavity. The second docking sleeve is fitted with a separation unit through the second docking interface.

[0009] As a preferred embodiment, the separation unit is provided with two sets, including strips and docking parts. The internal docking parts of the second interface are installed with extended docking parts, and the strips are fixedly installed at the same end of the docking parts.

[0010] As a preferred embodiment, a washer is fitted on the threaded rod inside the adjusting nut, and the adjusting nut is positioned by pressing against the mating sleeve one through the washer. A rotary joint that is fixedly connected to the mating sleeve two is fixedly installed on the outer end of the threaded rod.

[0011] As a preferred embodiment, both the front and back of the mating sleeve are provided with mating interfaces, and two sets of plug strips are fixedly installed on the side of the sleeve, with the plug strips extending into the mating interfaces.

[0012] As a preferred embodiment, the side of the mounting head is fixedly equipped with a mating groove, and the mating groove is mated with the end of the first spring member.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The adjustment unit enables the hardware to adapt to different needs. During installation, personnel can adjust the length of the hardware by a short distance according to the actual installation requirements. This allows the hardware to effectively compensate for the gap difference during installation and ensure its adaptability during installation.

[0015] By using the connecting unit as the central connector, the mutual adjustment with the adjustment unit is achieved, ensuring the length adjustment of itself;

[0016] The positioning unit enables rapid installation of the fittings, which can be completed by personnel simply by docking. Multiple positioning points are set up to ensure that the internal positioning components can be used to achieve mutual locking and fixation between the structures after docking, ensuring that the fittings do not come apart after docking. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the first assembly structure of the transmission line fittings of this utility model;

[0018] Figure 2 This is a schematic diagram of the second assembly structure of the transmission line fittings of this utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the adjustment unit of this utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the positioning unit of this utility model.

[0021] Figure label:

[0022] 100. First connector;

[0023] 200. Adjustment unit; 201. Docking sleeve one; 2011. Docking interface one; 2012. Snap-fit ​​interface; 202. Docking groove; 203. First spring component; 204. Fixing base;

[0024] 300. Connecting unit; 301. Gasket; 302. Threaded rod; 303. Rotary joint; 304. Adjusting nut; 305. Insertion strip; 306. Clip-on head;

[0025] 400. Positioning unit; 401. Second mating sleeve; 4011. Second mating interface; 4012. Snap-fit ​​cavity; 402. Insert connector; 4021. Mounting chamber; 403. Snap-fit ​​connector; 404. Second spring component;

[0026] 500, Second Connector

[0027] 600, Separation unit; 601, Strip; 602, Connecting component. Detailed Implementation

[0028] 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.

[0029] Example: This utility model provides a technical solution for anti-detachment self-locking transmission line hardware, such as... Figures 1-4 As shown, it includes: a first connector 100, an adjustment unit 200 mating to the end of the first connector 100, a connecting unit 300 mating to the adjustment unit 200 and extending out, a positioning unit 400 fixed to the end of the connecting unit 300, and a second connector 500 mating to the end of the positioning unit 400.

[0030] In the above scheme:

[0031] The first and second connectors enable the fittings to be connected to the wires and connecting facilities, thus achieving mutual connection of the fittings;

[0032] The adjustment unit 200 enables the hardware to achieve its own adaptive adjustment. During installation, personnel can adjust its length by a short distance according to the actual installation needs, so that the hardware can effectively make up for the gap difference during installation and ensure its adaptability during installation.

[0033] By using the connecting unit 300 as a central connecting member, the mutual adjustment between the connecting unit 300 and the adjusting unit 200 is achieved, ensuring the adjustment of its own length;

[0034] The positioning unit 400 enables rapid installation of the fittings, which can be completed by personnel simply by docking. Multiple positioning points are set up to ensure that the internal positioning components can be used to achieve mutual locking and fixation between the structures after docking, ensuring that the fittings do not come apart after docking.

[0035] The adjustment unit 200 is connected to the docking sleeve 201 at the end of the first connector 100, the card interface 2012 is provided in the docking sleeve 201, the fixing seat 204 is fixed in the docking sleeve 201, and the first spring member 203 is fixed on the fixing seat 204.

[0036] The connecting unit 300 connects to the threaded rod 302 extending from the connecting sleeve 201, the threaded sleeve is fitted onto the threaded rod 302, and the locking head 306 is fixed to the inner end of the threaded rod 302 and assembled with the locking interface 2012.

[0037] The positioning unit 400 includes a second mating sleeve 401 fixed to the end of the threaded rod 302, two sets of snap-fit ​​cavities 4012 disposed within the second mating sleeve 401, a plug connector 402 mated within the second mating sleeve 401 and installed and connected to the second connector 500, a snap-fit ​​cavity 4021 disposed within the plug connector 402, two sets of second spring members 404 fixed within the snap-fit ​​cavity 4021, and a snap connector 403 fixed to the end of the second spring member 404 and mated with the snap-fit ​​cavity 4012.

[0038] During daily work:

[0039] Personnel connect and install the second connector 500 to the power transmission line, securing it to the first connector 100 and the connection device. If the length is insufficient, personnel can first loosen the adjusting nut 304 and rotate the threaded rod 302 to synchronously rotate the inner end of the clamping head 306 to the first interface 2011 for length adjustment. After adjustment, the threaded rod 302 can be rotated in the opposite direction to engage the clamping head 306 into the other interface 2012. Finally, the adjusting nut 304 can be rotated again to complete the connection of the first coupling sleeve. During the compression positioning of the end of 201, the first spring 203 abuts against the inner end of the threaded rod 302. When the second coupling sleeve 401 is connected to the second connector 500, the operator can directly insert the plug 402 into the second coupling sleeve 401 according to the end of the second coupling sleeve 401. At this time, the snap-fit ​​connector 403 is compressed, causing the second spring 404 to enter the compression state. After full insertion, the operator can rotate the second coupling sleeve 401 until the snap-fit ​​connector 403 is fully snapped into the corresponding snap-fit ​​cavity 4012.

[0040] like Figure 1-4 As shown, in order to enable the positioning element inside the second docking sleeve 401 to separate from the second connector 500, the second docking sleeve 401 is further provided with a second docking interface 4011 at both the top and bottom. The second docking interface 4011 is connected to the snap-fit ​​cavity 4012, and the separation unit 600 is installed on the second docking sleeve 401 through the second docking interface 4011.

[0041] Specifically, during this period, personnel can operate the two sets of separation units 600 to cause the separation units 600 to be inserted into the interface 4011, thereby causing the separation units 600 to complete the separation operation of the positioning component.

[0042] like Figure 1-4 As shown, in order to enable the positioning element inside the second docking sleeve 401 to be separated from the second connector 500, the separation unit 600 is further provided with two sets, including a strip 601 and a docking element 602. The extended docking element 602 is installed to dock with the inside of the second interface 4011, and the strip 601 is fixedly installed on the same end of the docking element 602.

[0043] Specifically, by combining the above, personnel can operate the two sets of blocks 601 to cause the mating parts 602 on the blocks 601 to be inserted into the corresponding mating interfaces 4011. When personnel press the two sets of blocks 601 in opposite directions, the snap-fit ​​connector 403 compresses the second spring 404, causing the snap-fit ​​connector 403 to disengage from the snap-fit ​​cavity 4012, thus allowing personnel to separate the hardware.

[0044] It is worth noting that the separation unit 600 is not integrated with the main body of the hardware, but is operated separately. When the manufacturer needs to separate the hardware, the separation unit 600 can be operated independently to complete the required work.

[0045] like Figure 1-4 As shown, in order to enable the adjusting nut 304 to lock the mating sleeve 201, a sleeve 301 is fitted on the threaded rod 302 inside the adjusting nut 304. The adjusting nut 304 is positioned by pressing the mating sleeve 201 with the sleeve 301. A rotary joint 303 that is fixedly connected to the mating sleeve 401 is fixedly installed on the outer end of the threaded rod 302.

[0046] Specifically, the sleeve 301 has the effect of increasing damping friction, ensuring the squeezing and positioning effect of the mating sleeve 201. This, together with the spring inside the mating sleeve 201, can effectively ensure its own positioning effect and prevent loosening.

[0047] During adjustment, personnel can use rotary joint 303 to ensure the rotation of threaded rod 302, ensuring that clamping head 306 can be rotated from clamping interface 2012 to adjust the length of interface 2011. After adjustment, threaded rod 302 can be rotated in the opposite direction to clamp clamping head 306 into another clamping interface 2012.

[0048] In order to enable the scraping component to clean the second guide cavity 2022, the front and back of the docking sleeve 201 are provided with docking interfaces 2011, and two sets of plug strips 305 are fixedly installed on the side of the sleeve 301, with the plug strips 305 extending into the docking interface 2011.

[0049] Specifically, when the adjusting nut is loosened, the operator can simultaneously turn the sleeve 301, causing the sleeve to simultaneously drive the plug strip 305, causing the plug strip 305 to disengage from the interface 2011. The purpose of disengagement is to ensure that the threaded rod 302 can drive the end clamping head 306 to rotate, thereby adjusting the positioning node and avoiding the constraint formed by the plug strip 305 on the clamping head 306 in the interface 2011, which would prevent it from being separated.

[0050] After adjustment, personnel can then perform pre-connection of the connector strip 305 with the sleeve gasket to ensure that the connector strip 305 provides protection and restraint to the locking head 306 at the positioning point.

[0051] Furthermore, a mating groove 202 is fixedly installed on the side of the mounting head 306, and the mating groove 202 is mated with the end of the first spring member 203.

[0052] The mating groove 202 and the first spring member 203 cooperate with each other. When the locking head 306 at the end of the threaded rod 302 enters the mating sleeve 201, it will form a mating with the end of the first spring member 203 through the mating groove 202, ensuring that the first spring member 203 can stably apply force to the first spring member 203.

[0053] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A fall-preventing self-locking power transmission line hardware, characterized by, The utility model provides a first joint (100), the adjusting unit (200) of butt joint in the end of first joint (100), the connecting unit (300) of butt joint in adjusting unit (200) and extension, the positioning unit (400) of fixed connection in the end of connecting unit (300), the second joint (500) of butt joint in the end of positioning unit (400), The adjusting unit (200) includes a butt joint sleeve (201) that is butt joint in the end of the first joint (100), a clamping interface (2012) that is arranged in the butt joint sleeve (201), a fixed seat (204) that is fixedly connected in the butt joint sleeve (201), and a first spring member (203) that is fixedly connected on the fixed seat (204), The connecting unit (300) includes a threaded rod (302) that is butt joint and extends in the butt joint sleeve (201), an adjusting nut (304) that is screwed on the threaded rod (302), and a clamping head (306) that is fixedly connected in the end of the threaded rod (302) and is assembled with the clamping interface (2012), The positioning unit (400) includes a butt joint sleeve (401) that is fixedly connected in the end of the threaded rod (302), two groups of clamping cavities (4012) that are arranged in the butt joint sleeve (401), a plug-in head (402) that is butt joint in the butt joint sleeve (401) and is mounted and connected with the second joint (500), a mounting chamber (4021) that is arranged in the plug-in head (402), two groups of second spring members (404) that are fixedly connected in the mounting chamber (4021), and clamping heads (403) that are fixedly connected in the end of the second spring members (404) and are butt joint with the clamping cavities (4012).

2. The anti-drop self-locking power transmission line fitting according to claim 1, characterized in that: The top and bottom of the butt joint sleeve (401) are provided with butt joint interfaces (4011), the butt joint interfaces (4011) are communicated with the clamping cavities (4012), and the butt joint sleeve (401) is butt joint mounted with the separation unit (600) through the butt joint interfaces (4011).

3. The anti-drop self-locking power transmission line fitting according to claim 2, characterized in that: The separation unit (600) is provided with two groups and includes a strip block (601) and a butt joint piece (602), the butt joint piece (602) is butt joint mounted and extends in the inside of the butt joint interface (4011), and the same end of the butt joint piece (602) is fixedly mounted with the strip block (601) together.

4. The anti-drop self-locking power transmission line fitting according to claim 3, characterized in that: The threaded rod (302) on the inside of the adjusting nut (304) is sleeved with a sleeve pad (301), the adjusting nut (304) is extruded and positioned with the butt joint sleeve (201) through the sleeve pad (301), and the outer end of the threaded rod (302) is fixedly mounted with a rotary joint (303) that is fixedly connected with the butt joint sleeve (401).

5. The anti-drop self-locking power transmission line fitting according to claim 4, characterized in that: The front face and the back face of the butt joint sleeve (201) are provided with butt joint interfaces (2011), the side face of the sleeve pad (301) is fixedly mounted with two groups of plug-in strips (305), and the plug-in strips (305) extend into the butt joint interfaces (2011).

6. The anti-drop self-locking power transmission line fitting according to claim 5, characterized in that: The side face of the clamping head (306) is fixedly mounted with a butt joint groove (202), and the butt joint groove (202) is mutually butt joint with the end of the first spring member (203).