Power transmission line insulator replacement fast positioning fixture

Abstract

The utility model discloses a transmission line insulator replacement quick positioning fixture relates to transmission line insulator replacement accessory technical field, and positioning mechanism is by adjusting lever and positioning plate composition, is used for controlling the distance between two positioning plates, ensures the accurate installation position of insulator, and the automatic locking is realized through inclined plane drive and elastic limit design of connecting mechanism, has solved the problem such as traditional connection mode easy to loosen, and the operation is complicated, the limiting mechanism is by antiskid plate, connecting rod, support plate, initiative screw rod and guide bushing constitute, utilizes the steady friction of screw thread drive principle and provides, prevents the positioning plate slippage or torsion on the wire, the utility model discloses a connecting mechanism and limiting mechanism are set up, solved the positioning inaccuracy in the prior art in the process of insulator replacement, and the problem such as not firm and high risk of tension release etc. when facing complex meteorological conditions under the high-altitude operation environment, can improve the safety and efficiency of operation.

Description

Technical Field

[0001] This utility model relates to the technical field of replacement accessories for power transmission line insulators, specifically a quick positioning clamp for replacing power transmission line insulators. Background Technology

[0002] During the maintenance of power transmission lines, especially when replacing insulators in high-altitude environments, the limited working space and inconvenient operation are common problems. In traditional methods, the disassembly and installation of insulators rely on manual adjustment, which is not only inefficient but also poses risks of inaccurate positioning and insecure fixing. In particular, under strong winds or severe weather conditions, worker safety and equipment stability face even greater challenges.

[0003] In the past, insulator replacement devices may have relied on simple mechanical clamps for temporary fixation. These clamps often lacked precise adjustment functions and could not effectively adapt to different specifications of insulators and conductor combinations, resulting in frequent slippage during actual operation, which increased the difficulty of operation and safety hazards. Utility Model Content

[0004] To address the problems mentioned in the background section, the present invention aims to provide a quick positioning clamp for insulator replacement in transmission lines, which has the advantages of convenient installation and stable connection, thus solving the problem of unstable positioning during insulator replacement.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick positioning clamp for replacing insulators of transmission lines, wherein the positioning mechanism includes an adjusting rod and a positioning plate, and the two ends of the adjusting rod are respectively fixedly connected to the surfaces of the two positioning plates; The positioning plate is provided with a limiting mechanism, and the surface of the positioning plate is provided with a connecting mechanism. The limiting mechanism is used to ensure the connection between the positioning plate and the power transmission line, and the connecting mechanism is used to fix the positioning plate on the power transmission line.

[0006] In a preferred embodiment of this utility model, the limiting mechanism includes an anti-slip plate, a connecting rod, a support plate, an active screw, and a guide sleeve. The upper ends of the anti-slip plate are fixedly connected to the lower ends of the two connecting rods respectively. The upper ends of the connecting rods are fixedly connected to the inner wall of the support plate. The inner wall of the support plate is threadedly connected to the surface of the active screw. The surface of the connecting rod is slidably connected to the inner wall of the guide sleeve.

[0007] In a preferred embodiment of this invention, the anti-slip plate surface is in contact with the inner surface of the positioning plate, and the guide sleeve surface is fixedly connected to the inner wall of the positioning plate.

[0008] In a preferred embodiment of this invention, the lower end of the active screw is rotatably connected to the inner wall of the positioning plate.

[0009] In a preferred embodiment of this utility model, the connecting mechanism includes a mating plate, a fixing plate, a limiting plate, an elastic block, a travel groove, and a sliding groove. The front end of the mating plate is fixedly connected to the lower end of the fixing plate, the inner wall of the fixing plate is in contact with the surface of the limiting plate, the travel groove is formed on the surface of the limiting plate, the inner wall of the travel groove is fixedly connected to the surface of the elastic block, and the sliding groove is formed at the lower end of the positioning plate.

[0010] In a preferred embodiment of this invention, the surface of the mating plate is rotatably connected to the lower end of the positioning plate via a rotating shaft, the surface of the fixing plate is in contact with the inner wall of the sliding groove, and the surface of the limiting plate is slidably connected to the inner wall of the positioning plate via a sliding groove.

[0011] In a preferred embodiment of this invention, the surface of the mating plate is in contact with the surface of the positioning plate, and the inner surface of the elastic block is fixedly connected to the inner wall of the positioning plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model solves the problems of unstable positioning, unreliable connection, and high risk of tension release during the replacement of insulators in transmission lines by setting up a coordinated structure of positioning mechanism, connection mechanism and limiting mechanism, and achieves the technical effects of convenient installation, firm fixation, safe operation and high efficiency.

[0013] 2. By setting up a connecting mechanism, this utility model uses inclined plane drive and elastic limit to solve the problems of complicated connection and easy loosening between the positioning plate and the mating plate, realizes fast automatic locking, and improves connection reliability and operation safety.

[0014] 3. By setting a limiting mechanism and using threaded transmission to drive the anti-slip plate to press the wire, this utility model solves the problem of the positioning plate easily slipping on the wire, realizes the stable limiting of the wire, and enhances the overall device's anti-disturbance capability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main three-dimensional structure provided in an embodiment of the present utility model; Figure 2 This is a three-dimensional structural diagram of the limiting mechanism provided in this embodiment of the utility model; Figure 3 This is a three-dimensional structural diagram of the connecting mechanism provided in an embodiment of the present utility model; Figure 4 This is a schematic diagram of the three-dimensional structure of the main body in vertical cross-section provided in this embodiment of the utility model.

[0016] In the diagram: 1. Positioning mechanism; 101. Adjusting rod; 102. Positioning plate; 2. Limiting mechanism; 201. Anti-slip plate; 202. Connecting rod; 203. Support plate; 204. Driving screw; 205. Guide sleeve; 3. Connecting mechanism; 301. Mating plate; 302. Fixing plate; 303. Limiting plate; 304. Elastic block; 305. Stroke groove; 306. Sliding groove. Detailed Implementation

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0018] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0019] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0020] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0021] Example 1 Reference Figure 1-4 The first embodiment of this utility model provides a positioning mechanism 1 including an adjusting rod 101 and a positioning plate 102. The two ends of the adjusting rod 101 are respectively fixedly connected to the surfaces of the two positioning plates 102. A limiting mechanism 2 is provided on the positioning plate 102, and a connecting mechanism 3 is provided on the surface of the positioning plate 102. The limiting mechanism 2 is used to ensure the connection between the positioning plate 102 and the power transmission line, and the connecting mechanism 3 is used to fix the positioning plate 102 on the power transmission line.

[0022] Specifically, the positioning mechanism 1 solves the problems of inaccurate positioning, unstable connection, and unsafe tension release in traditional insulator replacement operations. By integrating the adjusting rod 101 with the positioning plate 102 and combining the synergistic effect of the connecting mechanism 3 and the limiting mechanism 2, the positioning plate 102 can be quickly installed and reliably fixed on the conductor. The adjusting rod 101 can precisely adjust the distance between the two positioning plates 102 to achieve a smooth transfer and release of the insulator tension, avoiding safety accidents caused by sudden loss of force.

[0023] Furthermore, firstly, when replacing insulators, the positioning plates 102 at both ends of the adjusting rod 101 should be aligned and placed at the connection points of the two ends of the insulator string to be replaced. The limiting mechanism 2 ensures the connection between the positioning plates 102 and the transmission line. Then, the connecting mechanism 3 fixes the positioning plates 102 to the transmission line. Finally, after both positioning plates 102 are installed and secured to the conductor, the operator can precisely control the relative distance between the two positioning plates 102 by adjusting the length of the adjusting rod 101. This adjustment process can gradually release the tension borne by the original insulator, allowing it to be removed from the stress state, thus enabling safe disassembly and replacement.

[0024] Example 2 The second embodiment of this utility model provides a limiting mechanism 2 including an anti-slip plate 201, a connecting rod 202, a support plate 203, an active screw 204, and a guide sleeve 205. The upper ends of the anti-slip plate 201 are fixedly connected to the lower ends of the two connecting rods 202 respectively. The upper ends of the connecting rods 202 are fixedly connected to the inner wall of the support plate 203. The inner wall of the support plate 203 is threadedly connected to the surface of the active screw 204. The surface of the connecting rod 202 is slidably connected to the inner wall of the guide sleeve 205. The surface of the anti-slip plate 201 is in contact with the inner surface of the positioning plate 102. The surface of the guide sleeve 205 is fixedly connected to the inner wall of the positioning plate 102. The lower end of the active screw 204 is rotatably connected to the inner wall of the positioning plate 102.

[0025] Specifically, the limiting mechanism 2 solves the problem of the positioning device easily sliding on the conductor and being not firmly fixed, which increases the risk of operation. Through the threaded engagement of the active screw 204 and the support plate 203, the connecting rod 202 is driven to slide precisely along the guide sleeve 205, which causes the anti-slip plate 201 to tightly fit against the surface of the conductor, forming a stable friction pair. The guide sleeve 205 effectively constrains the movement trajectory of the connecting rod 202, prevents uneven loading or jamming, and improves the transmission stability.

[0026] Furthermore, after assembling the positioning plate 102 and the mating plate 301, the next step is to enhance the fixing stability of the positioning structure on the transmission line conductor. By rotating the active screw 204 on the positioning plate 102, the support plate 203 sleeved on it is driven to move axially using the thread transmission principle. The movement of the support plate 203 is transmitted through the connecting rod 202, so that the connecting rod 202 slides smoothly along the inner wall of the guide sleeve 205 and pushes the anti-slip plate 201 installed at its lower end to gradually approach and finally press against the conductor surface. This process ensures that the positioning plate 102 will not slip or twist along the conductor through mechanical pre-tightening force, effectively improving the anti-disturbance capability of the entire support system and providing a reliable reaction basis for applying tension or thrust to the adjusting rod 101.

[0027] Example 3 The third embodiment of this utility model provides a connecting mechanism 3 including a mating plate 301, a fixing plate 302, a limiting plate 303, an elastic block 304, a travel groove 305, and a sliding groove 306. The front end of the mating plate 301 is fixedly connected to the lower end of the fixing plate 302. The inner wall of the fixing plate 302 is in contact with the surface of the limiting plate 303. The travel groove 305 is formed on the surface of the limiting plate 303. The inner wall of the travel groove 305 is fixedly connected to the surface of the elastic block 304. The sliding groove 306 is formed at the lower end of the positioning plate 102. The surface of the mating plate 301 is rotatably connected to the lower end of the positioning plate 102 via a rotating shaft. The surface of the fixing plate 302 is in contact with the inner wall of the sliding groove 306. The surface of the limiting plate 303 is slidably connected to the inner wall of the positioning plate 102 via a sliding groove. The surface of the mating plate 301 is in contact with the surface of the positioning plate 102. The inner surface of the elastic block 304 is fixedly connected to the inner wall of the positioning plate 102.

[0028] Specifically, the connection mechanism 3 solves the problems of inconvenient installation, easy loosening, and poor stability of traditional connection methods in high-altitude operations. Through the cooperation of inclined plane drive and elastic limit, automatic locking is achieved during the insertion of the fixing plate 302, improving installation efficiency and connection reliability. The synergistic effect of the limit plate 303 and the elastic block 304 enhances the vibration resistance and anti-loosening performance of the connection structure, ensuring that the positioning plate 102 and the mating plate 301 always maintain a stable connection under complex working conditions, providing a solid foundation for subsequent tension adjustment and insulator replacement.

[0029] Furthermore, the operator rotates the mating plate 301 at the lower end of the positioning plate 102, aligning the fixing plate 302 on it with the sliding groove 306 inside the positioning plate 102 and gradually inserting it. As the fixing plate 302 is pushed into the sliding groove 306, the inclined surface on its upper side contacts the corresponding inclined surface on the limiting plate 303 and slides relative to each other, thereby pushing the limiting plate 303 to move outward against the pre-pressure of the elastic block 304. When the fixing plate 302 is fully inserted into the sliding groove 306, the limiting plate 303 quickly returns to its original position under the elastic restoring force provided by the elastic block 304, and its end is embedded in the pre-set slot on the side of the fixing plate 302 to achieve mechanical locking, ensuring that the connection between the mating plate 301 and the positioning plate 102 is firm and reliable, providing stable structural support for subsequent operations.

[0030] Working principle: First, when replacing insulators, the positioning plates 102 at both ends of the adjusting rod 101 should be aligned and placed at the connection points of the two ends of the insulator string to be replaced. Then, the operator rotates the mating plate 301 at the lower end of the positioning plate 102, aligning the fixing plate 302 on it with the sliding groove 306 inside the positioning plate 102 and gradually inserting it. As the fixing plate 302 is pushed into the sliding groove 306, its upper inclined surface contacts and slides relative to the corresponding inclined surface on the limiting plate 303, thus pushing the limiting plate 303 outwards against the pre-pressure of the elastic block 304. When the fixing plate 302 is fully inserted into the sliding groove 306, the limiting plate 303 quickly returns to its original position under the elastic restoring force provided by the elastic block 304, its end embedding into the pre-set slot on the side of the fixing plate 302, achieving mechanical locking and ensuring a firm and reliable connection between the mating plate 301 and the positioning plate 102, providing stable structural support for subsequent operations. After completing the installation of the positioning plate 102 and the mating plate 301... After installation, the next step is to enhance the stability of the positioning structure on the transmission line conductor. By rotating the active screw 204 on the positioning plate 102, the support plate 203 mounted on it is driven to move axially using the thread transmission principle. The movement of the support plate 203 is transmitted through the connecting rod 202, which slides smoothly along the inner wall of the guide sleeve 205 and pushes the anti-slip plate 201 installed at its lower end to gradually approach and finally press against the conductor surface. This process ensures that the positioning plate 102 will not slip or twist along the conductor through mechanical pre-tightening force, effectively improving the anti-disturbance capability of the entire support system and providing a reliable reaction basis for applying tension or thrust to the adjusting rod 101. Finally, after both positioning plates 102 are installed and secured to the conductor, the operator can precisely control the relative distance between the two positioning plates 102 by adjusting the length of the adjusting rod 101. This adjustment process can gradually release the tension borne by the original insulator, allowing it to be removed from the stress state, thus enabling safe disassembly and replacement.

[0031] In summary: the coordinated operation of the inclined structure, limiting plate, and elastic block on the positioning plate and mating plate achieves automatic locking after the fixing plate is inserted, ensuring a reliable connection between the positioning plate and the mating plate; the active screw drives the support plate to move the connecting rod and anti-slip plate, achieving stable fixation of the positioning plate on the conductor and effectively preventing slippage; finally, the precise control of the distance between the two positioning plates by the adjusting rod enables the gradual release of insulator tension and safe replacement.

[0032] The active screw used in this application can be additionally equipped with protective measures that are common knowledge in this technical field under different usage environments, including but not limited to the following methods, such as protective covers for equipment protection, dustproof nets for equipment dust prevention, and sealing components or waterproof coatings for equipment waterproofing, which are commonly used by those skilled in the art.

[0033] It should be noted that (adjusting rod, positioning plate, active screw, elastic block) are existing devices or equipment, or devices or equipment that can be implemented by existing technology. The power supply, connection method, usage method, power source, fixing method, installation method, control method, etc. of the equipment, as well as the materials of each accessory and the selection of various parameters are common knowledge to those skilled in the art, and therefore will not be described in detail in this application document.

[0034] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0035] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0036] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0037] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A quick positioning clamp for replacing insulators of transmission lines, characterized in that: The positioning mechanism (1) for replacing insulators of transmission lines includes an adjusting rod (101) and a positioning plate (102). The two ends of the adjusting rod (101) are fixedly connected to the surfaces of the two positioning plates (102) respectively. The positioning plate (102) is provided with a limiting mechanism (2), and the surface of the positioning plate (102) is provided with a connecting mechanism (3). The limiting mechanism (2) is used to ensure the connection between the positioning plate (102) and the power transmission line, and the connecting mechanism (3) is used to fix the positioning plate (102) on the power transmission line.

2. The quick positioning clamp for replacing transmission line insulators according to claim 1, characterized in that: The limiting mechanism (2) includes an anti-slip plate (201), a connecting rod (202), a support plate (203), an active screw (204), and a guide sleeve (205). The upper ends of the anti-slip plate (201) are fixedly connected to the lower ends of the two connecting rods (202) respectively. The upper ends of the connecting rods (202) are fixedly connected to the inner wall of the support plate (203). The inner wall of the support plate (203) is threadedly connected to the surface of the active screw (204). The surface of the connecting rod (202) is slidably connected to the inner wall of the guide sleeve (205).

3. The quick positioning clamp for replacing transmission line insulators according to claim 2, characterized in that: The surface of the anti-slip plate (201) is in contact with the inner surface of the positioning plate (102), and the surface of the guide sleeve (205) is fixedly connected to the inner wall of the positioning plate (102).

4. The quick positioning clamp for replacing transmission line insulators according to claim 2, characterized in that: The lower end of the active screw (204) is rotatably connected to the inner wall of the positioning plate (102).

5. The quick positioning clamp for replacing transmission line insulators according to claim 1, characterized in that: The connecting mechanism (3) includes a mating plate (301), a fixing plate (302), a limiting plate (303), an elastic block (304), a stroke groove (305), and a sliding groove (306). The front end of the mating plate (301) is fixedly connected to the lower end of the fixing plate (302). The inner wall of the fixing plate (302) is in contact with the surface of the limiting plate (303). The stroke groove (305) is opened on the surface of the limiting plate (303). The inner wall of the stroke groove (305) is fixedly connected to the surface of the elastic block (304). The sliding groove (306) is opened at the lower end of the positioning plate (102).

6. The quick positioning clamp for replacing transmission line insulators according to claim 5, characterized in that: The surface of the mating plate (301) is rotatably connected to the lower end of the positioning plate (102) via a rotating shaft. The surface of the fixing plate (302) is in contact with the inner wall of the sliding groove (306). The surface of the limiting plate (303) is slidably connected to the inner wall of the positioning plate (102) via a sliding groove.

7. The quick positioning clamp for replacing transmission line insulators according to claim 5, characterized in that: The surface of the mating plate (301) is in contact with the surface of the positioning plate (102), and the inner surface of the elastic block (304) is fixedly connected to the inner wall of the positioning plate (102).

Images