An easy-to-install insulated composite crossarm

Abstract

This utility model discloses an easily installable insulated composite crossarm, belonging to the field of insulated composite crossarms. It aims to solve the problem that the current common approach in the prior art is to separately customize special irregular clamps. However, from a cost perspective, customizing irregular clamps requires more design investment. The design team not only needs to design separately for different shaped towers but also needs to conduct repeated simulation tests to ensure that the irregular clamps can meet the mechanical performance requirements under different working conditions, leading to a significant increase in the overall project cost. The crossarm includes an insulated composite crossarm with a mounting plate at its lower end. The mounting plate has a splicing mechanism at its outer end, and mounting mechanisms at both its inner and outer ends. Each mounting mechanism includes adjusting blocks connected to the left and right ends inside the mounting plate, with a bearing installed at the end of the adjusting block furthest from the center of the mounting plate.

Description

Technical Field

[0001] This utility model belongs to the field of insulating composite crossarms, specifically relating to an insulating composite crossarm that is easy to install. Background Technology

[0002] In the field of power transmission, insulated composite crossarms are key components that support conductors, insulators, and related power equipment, providing electrical insulation. Their installation stability and compatibility are paramount. Currently, the common method for installing insulated composite crossarms to poles is using clamps. However, the standard circular clamps are designed for circular poles, and their structural characteristics make it difficult to achieve a tight fit with non-circular poles. This lack of fit significantly reduces the contact area between the clamp and the pole, resulting in insufficient friction for securing the insulated composite crossarm and consequently failing to effectively guarantee the stability of the crossarm after installation.

[0003] To address this compatibility challenge, the current common approach is to customize special irregular clamps. However, from a cost perspective, customizing irregular clamps requires more design investment. The design team not only needs to design separately for different shaped towers, but also needs to conduct repeated simulation tests to ensure that the irregular clamps can meet the mechanical performance requirements under different working conditions, resulting in a significant increase in the overall project cost.

[0004] Therefore, there is an urgent need for an insulated composite crossarm that can be easily and stably installed on various types of poles and towers. Utility Model Content

[0005] (1) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, the purpose of this utility model is to provide an easily installed insulated composite crossarm. This aims to solve the problem that the commonly used approach in the current technology is to additionally customize special irregular clamps. However, from a cost perspective, customizing irregular clamps requires more design investment. The design team not only has to design separately for different shaped towers, but also has to conduct repeated simulation tests to ensure that the irregular clamps can meet the mechanical performance requirements under different working conditions, which leads to a significant increase in the overall project cost.

[0007] (2) Technical solution

[0008] To solve the above-mentioned technical problems, this utility model provides an easy-to-install insulating composite crossarm, including an insulating composite crossarm, a mounting plate at the lower end of the insulating composite crossarm, a splicing mechanism at the outer end of the mounting plate, and mounting mechanisms at both the inner and outer ends of the mounting plate. The mounting mechanisms include adjusting blocks connected to the left and right ends inside the mounting plate. A bearing is installed at the end of the adjusting block away from the center of the mounting plate. A second threaded rod is fixedly connected to the inner side of the bearing. A first handle is welded to the other end of the second threaded rod. A round tube is welded to the front side of the adjusting block. A round plate is connected to the inner side of the round tube. A round rod is welded to the middle position of the front side of the round plate. A second handle is welded to the front end of the round rod. A T-shaped round shaft is welded to the rear side of the round plate. A steel cable is connected inside the adjusting block. Circular blocks are welded to both ends of the steel cable.

[0009] Furthermore, the splicing mechanism includes a lower fixing plate welded to the lower ends of the left and right sides of the mounting plate, an upper fixing plate welded to the upper ends of the left and right sides of the mounting plate, a first threaded rod welded to the middle position of the upper side of the upper fixing plate, and a nut threadedly connected to the outer side of the first threaded rod.

[0010] Furthermore, the mounting plate has through grooves extending from front to back at both the left and right ends, and sliding grooves at the upper and lower ends of the through grooves. Threaded holes that connect left and right are located at the middle of the left and right ends of the mounting plate. The outer side of the second threaded rod is threadedly connected to the inner side of the threaded hole, and the outer sides of the upper and lower ends of the adjusting block are slidably connected to the inner side of the sliding groove.

[0011] Furthermore, the inner side of the circular tube is provided with an internal thread, and the outer circumferential surface of the circular plate is provided with an external thread, and the inner side of the circular tube is threadedly connected to the outer side of the circular plate.

[0012] Furthermore, a through-hole is provided in the middle of the interior of the adjusting block, and the outer sides of the steel cable and the circular block are slidably connected to the inner sides of the through-hole and the circular tube.

[0013] Furthermore, a limiting groove is provided at the front end of the inner part of the circular block, and the outer side of the T-shaped circular shaft is rotatably connected to the inner side of the limiting groove.

[0014] Furthermore, the outer side of the steel cable abuts against the outer side of the tower on which the insulated composite crossarm is installed.

[0015] Furthermore, the insulating composite crossarm has an internal mounting hole, and the lower fixing plate has a through-hole at the middle position. The outer side of the first threaded rod is slidably connected to the inner side of the mounting hole and the inner side of the insulating composite crossarm. The lower side of the nut abuts against the upper side of the lower fixing plate and the upper side of the insulating composite crossarm.

[0016] (3) Beneficial effects

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This utility model, through the installation mechanism, allows the steel cable at the rear end of the mounting plate to be fitted onto the outer end of the tower. Then, by rotating the first handle, the second threaded rod rotates within the threaded hole and moves, causing the adjusting block to move along the inner side of the groove towards the center of the mounting plate. Once the plate is close to the center of the mounting plate, the second handle is rotated, causing the circular plate to rotate within the circular tube and move forward, moving both ends of the steel cable forward. This reduces the length of the steel cable behind the mounting plate, gradually tightening it towards the tower until it fully abuts against the outer side of the tower. This securely fits the steel cable onto the outer end of the tower, simultaneously fixing the mounting plate with the insulated composite crossarm to the outer end of the tower. The flexible steel cable allows the mounting plate with the insulated composite crossarm to be installed on the outer end of the tower, ensuring that the outer side of towers of different shapes can fully contact the surface of the steel cable, thus guaranteeing the stability of the mounting plate after installation on the outer side of towers of various shapes.

[0019] This invention, through the establishment of a splicing mechanism, allows for the placement of an insulated composite crossarm on a mounting plate. After the first threaded rods at the upper left and right ends of the mounting plate pass through the mounting holes inside the insulated composite crossarm, a nut is threaded onto the first threaded rod and contacts the upper side of the insulated composite crossarm, thus fixing the crossarm to the mounting plate. Similarly, placing one mounting plate on top of another, with the lower fixing plates at the upper left and right ends of the upper mounting plate passing through the first threaded rods at the upper left and right ends of the lower mounting plate, and then threading a nut onto the first threaded rod until the nut contacts the upper side of the lower fixing plate, allows the two mounting plates to be relatively fixed. This enables the installation of different numbers of mounting plates at the lower end of the insulated composite crossarm. Furthermore, during installation, the insulated composite crossarm can be fixed to the outer end of the tower using the required number of steel cables, ensuring that the insulated composite crossarm reliably bears the weight and external forces of components such as the outer conductor. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0022] Figure 2This is a schematic diagram of the structure at the rear end of the mounting plate of this utility model;

[0023] Figure 3 This is a schematic diagram of the structure at the outer end of the adjusting block of this utility model;

[0024] Figure 4 This is a schematic diagram of the internal structure of the circular tube of this utility model;

[0025] Figure 5 This is a schematic diagram of the T-shaped circular shaft structure of this utility model.

[0026] The markings in the attached diagram are as follows: 1. Insulated composite crossarm; 2. Mounting plate; 301. Lower fixing plate; 302. Upper fixing plate; 303. First threaded rod; 304. Nut; 401. Adjusting block; 402. Bearing; 403. Second threaded rod; 404. First handle; 405. Round tube; 406. Round plate; 407. Round rod; 408. Second handle; 409. T-shaped round shaft; 410. Steel cable; 411. Round block. Detailed Implementation

[0027] 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.

[0028] This specific embodiment is an insulated composite crossarm that is easy to install, and its structural schematic diagram is shown below. Figure 1 and Figure 2As shown, the system includes an insulating composite crossarm 1. A mounting plate 2 is located at the lower end of the insulating composite crossarm 1. A splicing mechanism is located at the outer end of the mounting plate 2. The splicing mechanism includes lower fixing plates 301 welded to the lower ends of the left and right sides of the mounting plate 2, and upper fixing plates 302 welded to the upper ends of the left and right sides of the mounting plate 2. A first threaded rod 303 is welded to the middle of the upper side of the upper fixing plate 302, and a nut 304 is threadedly connected to the outer side of the first threaded rod 303. An installation hole is provided inside the insulating composite crossarm 1. A through-hole is provided in the middle of the lower fixing plate 301. The outer side of the first threaded rod 303 is slidably connected to the inside of the through-hole and the mounting hole inside the insulating composite crossarm 1. The lower side of the nut 304 abuts against the upper side of the lower fixing plate 301 and the upper side of the insulating composite crossarm 1. Thus, after placing the insulating composite crossarm 1 on the mounting plate 2, and having the first threaded rod 303 at the upper left and right ends of the mounting plate 2 pass through the mounting holes inside the insulating composite crossarm 1, the nut 304 is then threaded onto the first threaded rod 303 and contacts the upper side of the insulating composite crossarm 1, thereby fixing the insulating composite crossarm 1 onto the mounting plate 2. Similarly, one mounting plate 2 is placed on top of another mounting plate 2, and after the lower fixing plate 301 at the upper left and right ends of the upper mounting plate 2 passes through the first threaded rod 303 at the upper left and right ends of the lower mounting plate 2, the nut 304 is then threaded onto the first threaded rod 303 until the nut 304 contacts the upper side of the lower fixing plate 301, thereby fixing the two mounting plates 2 relative to each other. This allows different numbers of mounting plates 2 to be installed at the lower end of the insulating composite crossarm 1, so that when the insulating composite crossarm 1 is installed, it can be fixed to the outer end of the tower pole by the required number of steel cables 410, enabling the insulating composite crossarm 1 to reliably bear the weight and external force of the outer end conductors and other components.

[0029] Cooperate Figures 3 to 5 As shown, mounting mechanisms are provided at both the inner and outer ends of the mounting plate 2. Each mounting mechanism includes adjusting blocks 401 connected to the left and right ends of the mounting plate 2. A bearing 402 is mounted on the end of the adjusting block 401 furthest from the center of the mounting plate 2. A second threaded rod 403 is fixedly connected to the inner side of the bearing 402. A first handle 404 is welded to the other end of the second threaded rod 403. Through grooves are formed at both the left and right ends of the mounting plate 2, and sliding grooves are formed at the upper and lower ends of these through grooves. Threaded holes are formed at the middle of both the left and right ends of the mounting plate 2, connecting the left and right sides. The outer side of the second threaded rod 403 is threadedly connected to the inner side of the threaded hole. The outer sides of the upper and lower ends of the adjusting block 401 are slidably connected to the inner side of the sliding groove. Therefore, when the first handle 404 is rotated, causing the second threaded rod 403 to rotate within the threaded hole, the adjusting block 401 can slide along the inner side of the sliding groove.

[0030] The adjusting block 401 has a circular tube 405 welded to its front side, a circular plate 406 connected to the inner side of the circular tube 405, an internal thread on the inner side of the circular tube 405, and an external thread on the outer circumferential surface of the circular plate 406. The inner side of the circular tube 405 is threaded to the outer side of the circular plate 406. A circular rod 407 is welded to the middle of the front side of the circular plate 406, a second handle 408 is welded to the front end of the circular rod 407, and a T-shaped circular shaft 409 is welded to the rear side of the circular plate 406. A steel cable 410 is connected inside the adjusting block 401, and circular blocks 411 are welded to both ends of the steel cable 410. A through-hole is formed in the middle of the interior of the adjusting block 401, and the outer sides of the steel cable 410 and the circular blocks 411 are slidably connected to the through-hole and the inner side of the circular tube 405. A limiting groove is formed at the front end of the interior of the circular block 411, and the outer side of the T-shaped circular shaft 409 is rotatably connected to the inner side of the limiting groove. Thus, when the second handle 408 is rotated to make the round rod 407 and the round plate 406 rotate, the round plate 406 moves inside the round tube 405, which in turn drives the round block 411 to move, causing the steel cable 410 to slide along the inside of the sliding hole, thereby changing the length of the steel cable 410 located at the outer end of the adjusting block 401.

[0031] Furthermore, the outer side of the steel cable 410 abuts against the outer side of the tower rod on which the insulated composite crossarm 1 is installed. Thus, after the steel cable 410 at the rear end of the mounting plate 2 is fitted onto the outer end of the tower rod, the first handle 404 is rotated, causing the second threaded rod 403 to rotate and move simultaneously within the threaded hole. This moves the adjusting block 401 along the inner side of the slide groove towards the center of the mounting plate 2, until it reaches the side of the through groove closest to the center of the mounting plate 2. Then, the second handle 408 is rotated, causing the circular plate 406 to rotate and move forward simultaneously within the circular tube 405. This moves both ends of the steel cable 410 forward, reducing the length of the steel cable 410 behind the mounting plate 2, thereby... As the steel cable 410 gradually tightens towards the tower, until it completely abuts against the outer side of the tower, it securely fits onto the outer end of the tower. Simultaneously, the mounting plate 2, which is fixed to the insulating composite crossarm 1, is also fixed to the outer end of the tower. Thus, by using the flexible steel cable 410 to install the mounting plate 2, which is fixed to the insulating composite crossarm 1, on the outer end of the tower, it is possible to ensure that the outer side of towers of different shapes can fully contact the surface of the steel cable 410, thereby ensuring the stability of the mounting plate 2 after installation on the outer side of towers of different shapes.

[0032] Working principle: When installing the insulated composite crossarm 1, first place the insulated composite crossarm 1 on the mounting plate 2. After the first threaded rod 303 at the upper left and right ends of the mounting plate 2 passes through the mounting holes inside the insulated composite crossarm 1, the nut 304 is threaded onto the first threaded rod 303 and contacts the upper side of the insulated composite crossarm 1, thus fixing the insulated composite crossarm 1 onto the mounting plate 2. Next, the steel cable 410 at the rear end of the mounting plate 2 is looped onto the outer end of the tower. Then, the first handle 404 is rotated so that the second threaded rod 403 rotates and moves in the threaded hole, driving the adjusting block 40. 1. Move along the inner side of the slide groove towards the center of the mounting plate 2 until it moves to the side of the through groove close to the center of the mounting plate 2. Then, turn the second handle 408 so that the circular plate 406 moves forward while rotating inside the circular tube 405, which drives both ends of the steel cable 410 to move forward. This reduces the length of the steel cable 410 behind the mounting plate 2, and gradually tightens the steel cable 410 towards the tower until it completely abuts against the outer side of the tower. This allows the steel cable 410 to be securely fitted onto the outer end of the tower. At the same time, the mounting plate 2 is fixed to the outer end of the tower, so that the insulated composite crossarm 1 is installed on the insulated composite crossarm 1.

[0033] All technical features in this embodiment can be freely combined according to actual needs.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An insulated composite cross arm for easy installation comprising an insulated composite cross arm (1) characterized by, The lower end of the insulating composite crossarm (1) is provided with a mounting plate (2). The outer end of the mounting plate (2) is provided with a splicing mechanism. The inner and outer ends of the mounting plate (2) are provided with mounting mechanisms, and the mounting mechanisms include adjusting blocks (401) connected to the left and right ends inside the mounting plate (2). A bearing (402) is installed at the end of the adjusting block (401) away from the center of the mounting plate (2). A second threaded rod (403) is fixedly connected to the inner side of the bearing (402). The other end of the second threaded rod (403) is welded to... The adjustment block (401) is equipped with a first handle (404), a round tube (405) is welded to the front side of the adjustment block (401), a round plate (406) is connected to the inner side of the round tube (405), a round rod (407) is welded to the middle position of the front side of the round plate (406), a second handle (408) is welded to the front end of the round rod (407), a T-shaped round shaft (409) is welded to the rear side of the round plate (406), a steel cable (410) is connected inside the adjustment block (401), and round blocks (411) are welded to both ends of the steel cable (410).

2. An insulated composite cross arm for facilitating installation according to claim 1, wherein, The splicing mechanism includes a lower fixing plate (301) welded to the lower ends of the left and right sides of the mounting plate (2), an upper fixing plate (302) welded to the upper ends of the left and right sides of the mounting plate (2), a first threaded rod (303) welded to the middle position of the upper side of the upper fixing plate (302), and a nut (304) threadedly connected to the outer side of the first threaded rod (303).

3. An insulated composite cross arm for facilitating installation according to claim 1, wherein, The mounting plate (2) has through grooves at both the left and right ends, and sliding grooves at the upper and lower ends of the through grooves. The mounting plate (2) has threaded holes at the middle of the left and right ends, and the outer side of the second threaded rod (403) is threaded to the inner side of the threaded hole. The outer side of the upper and lower ends of the adjusting block (401) is slidably connected to the inner side of the sliding groove.

4. An insulated composite cross arm for facilitating installation according to claim 1, wherein, The inner side of the round tube (405) is provided with an internal thread, and the outer circumferential surface of the round plate (406) is provided with an external thread. The inner side of the round tube (405) is threadedly connected to the outer side of the round plate (406).

5. An insulated composite crossarm for facilitating installation according to claim 1, wherein, The adjusting block (401) has a through-hole at the middle position inside, and the outer sides of the steel cable (410) and the circular block (411) are slidably connected to the inner side of the through-hole and the circular tube (405).

6. An insulated composite crossarm for facilitating installation according to claim 1, wherein, A limiting groove is provided at the front end of the inner part of the circular block (411), and the outer side of the T-shaped circular shaft (409) is rotatably connected to the inner side of the limiting groove.

7. An insulated composite crossarm for facilitating installation according to claim 5, wherein, The outer side of the steel cable (410) abuts against the outer side of the tower on which the insulated composite crossarm (1) is installed.

8. An insulated composite cross arm for facilitating installation according to claim 2, wherein, The insulating composite crossarm (1) has an installation hole inside, and the lower fixing plate (301) has a through hole at the middle position inside. The outer side of the first threaded rod (303) is slidably connected to the inner side of the hole and the installation hole inside the insulating composite crossarm (1). The lower side of the nut (304) abuts against the upper side of the lower fixing plate (301), and the lower side of the nut (304) abuts against the upper side of the insulating composite crossarm (1).

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