Suspension clamp for power transmission line
By introducing a combination design of bearings and fastening nuts into the suspension clamp, the connecting plate and connecting pin rotate synchronously. Combined with the wear-resistant collar and cover plate, the problem of bolt loosening under wind blowing is solved, achieving a more stable connection and reducing conductor wear.
Patent Information
- Application Number
- CN202423201369.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-25
AI Technical Summary
Conventional suspension clamps can loosen bolt connections when blown by the wind, affecting connection stability and conductor safety.
The bolted connecting plate and the connecting plate are connected by a connecting mechanism. The combination design of bearings and fastening nuts allows the connecting plate to rotate when it swings relative to the connecting mechanism, thus preventing loosening. At the same time, the wear-resistant collar and cover plate snap-fit structure enhances the connection stability and prevents the cable from getting detached.
It effectively prevents loose connections, reduces wire wear, improves the connection stability and safety of suspension clamps, and prevents cables from coming loose.
Smart Images
Figure CN223666004U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of transmission line suspension clamps, specifically a transmission line suspension clamp. Background Technology
[0002] A suspension clamp is a type of hardware used to suspend a conductor (or ground wire) onto a string (or group) of suspension insulators or a string (or group) of fittings. It is the main structural component of a suspension string and is the lowest layer of the string. A conventional suspension string consists of several parts, including a hanging plate for connecting the tower crossarm, a hanging ring for connecting the hanging plate and the insulator, and a hanging cup and connecting plate for connecting the insulator and the suspension clamp. The connecting plate is directly connected to the suspension clamp. The connection between the two is a bolted connection. When the conductor is blown by the wind, it causes the suspension clamp to swing, which in turn causes relative rotation at the connection between the suspension clamp and the connecting plate, resulting in the bolts connecting the two becoming loose. Utility Model Content
[0003] The purpose of this utility model is to provide a suspension clamp for power transmission lines to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a suspension clamp for a power transmission line, comprising a clamp body and bolt connecting plates, wherein two bolt connecting plates are provided and are symmetrically arranged about the front and rear of the clamp body, a fixing pin is inserted into the bottom end of the bolt connecting plate, the fixing pin penetrates the outer wall of the clamp body and is fixedly connected to the clamp body, a connecting mechanism is provided at the top end of the bolt connecting plate, and a connecting plate is connected to the bolt connecting plate through the connecting mechanism;
[0005] The connecting mechanism includes a connecting pin and a bearing mounting base. The bearing mounting base is fixedly installed on the inner wall of the top of the bolt connecting plate. A bearing is fixedly installed on the inner wall of the bearing mounting base. A rotating cylinder is fixedly installed on the inner side of the bearing. The end of the connecting pin passes through the rotating cylinder. An integrally formed protrusion is provided on the inner wall of the rotating cylinder. A groove is provided on the outer wall of the connecting pin. The protrusion is slidably disposed in the groove. A fastening nut is threaded onto the end of the connecting pin. The connecting pin movably passes through the connecting plate. The connecting plate is located between the front and rear bolt connecting plates.
[0006] Furthermore, both ends of the wire clamp body are turned downwards, and both ends of the wire clamp body are rounded.
[0007] Furthermore, a wear-resistant collar is provided between the connecting plate and the bolt connecting plate, and the wear-resistant collar is slidably sleeved on the connecting pin.
[0008] Furthermore, a cover plate is snapped onto the inner side of the clamp body, and a locking pin hole is opened on the outer wall of the cover plate, into which the fixing pin is inserted.
[0009] Furthermore, the left and right ends of the cover plate are rounded, and the upper surface of the cover plate is lower than the upper surface of the clamp body.
[0010] Furthermore, a connecting piece is fixedly installed on the outer wall of the cover plate, and a fixing pin is fixedly installed on the outer wall of the connecting piece, the fixing pin movably penetrating through the outer wall of the bolt connecting plate.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] 1. By tightening the connecting pin at both ends with the fastening nut, the connecting pin cannot be disengaged from the rotating cylinder. When the connecting plate swings left and right relative to the connecting mechanism, the connecting plate will drive the connecting pin to rotate due to the friction between the connecting plate and the connecting pin. At this time, the fastening nut and the connecting pin rotate synchronously, avoiding the problem of loosening of the connection between the connecting pin and the fastening nut.
[0013] 2. Connect the cover plate to the cable clamp body through the locking pin hole. By covering the cable, the cable is prevented from swinging too much and coming off the cable clamp body. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the structure of the wire clamp body and the cover plate of this utility model;
[0016] Figure 3 This utility model Figure 2 Exploded view of the structure;
[0017] Figure 4 This is a schematic diagram of the connection mechanism of this utility model;
[0018] Figure 5 This utility model Figure 4 A schematic diagram of the structure in an exploded view.
[0019] In the diagram: 1. Wire clamp body; 2. Bolt connecting plate; 201. Fixing pin one; 3. Connecting plate; 4. Connecting mechanism; 401. Connecting pin; 402. Bearing mounting seat; 403. Bearing; 404. Rotating cylinder; 405. Raised bar; 406. Groove; 407. Fastening nut; 5. Cover plate; 501. Locking pin hole; 6. Connecting piece; 601. Fixing pin two; 7. Wear-resistant collar. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0021] Please see Figures 1-5 This utility model provides a technical solution: a power transmission line suspension clamp, including a clamp body 1 and a bolt connecting plate 2. Two bolt connecting plates 2 are provided and are symmetrically arranged about the front and back of the clamp body 1. A fixing pin 201 is inserted into the bottom end of the bolt connecting plate 2. The fixing pin 201 penetrates the outer wall of the clamp body 1 and is fixedly connected to the clamp body 1. A connecting mechanism 4 is provided at the top end of the bolt connecting plate 2. A connecting plate 3 is connected to the bolt connecting plate 2 through the connecting mechanism 4.
[0022] The connecting mechanism 4 includes a connecting pin 401 and a bearing mounting seat 402. The bearing mounting seat 402 is fixedly installed on the inner wall of the top of the bolt connecting plate 2. A bearing 403 is fixedly installed on the inner wall of the bearing mounting seat 402. A rotating cylinder 404 is fixedly installed on the inner side of the bearing 403. The end of the connecting pin 401 passes through the rotating cylinder 404. An integrally formed protrusion 405 is provided on the inner wall of the rotating cylinder 404. A groove 406 is provided on the outer wall of the connecting pin 401. The protrusion 405 is slidably disposed in the groove 406. A fastening nut 407 is threaded onto the end of the connecting pin 401. The connecting pin 401 movably passes through the connecting plate 3. The connecting plate 3 is located between the front and rear bolt connecting plates 2. The bearing mounting seat 402 is provided to install the bearing 403 on the bolt connecting plate 2. The rotating cylinder 404 is mounted on the upper part of the bolt connecting plate 2 via the bearing 403, allowing the rotating cylinder 404 to rotate relative to the bolt connecting plate 2. The rotating cylinder 404 and the connecting pin 401 are connected by the groove 406 on the connecting pin 401 and the protrusion 405 inside the rotating cylinder 404, so that the rotation of the rotating cylinder 404 can drive the connecting pin 401 to rotate. The two ends of the connecting pin 401 are fastened by the fastening nut 407, so that the connecting pin 401 cannot be disengaged from the rotating cylinder 404. When the connecting plate 3 swings left and right relative to the connecting mechanism 4, the connecting plate 3 will drive the connecting pin 401 to rotate due to the friction between the connecting plate 3 and the connecting pin 401. At this time, the fastening nut 407 rotates synchronously with the connecting pin 401, avoiding the problem of loosening of the connection between the connecting pin 401 and the fastening nut 407.
[0023] Both ends of the cable clamp body 1 are turned downwards. When the cable passes through the inside of the cable clamp body 1, the part where the cable enters and exits the cable clamp body 1 will drop significantly. Turning the ends of the cable clamp body 1 downwards can reduce the degree of bending of the cable at that point, thereby avoiding damage to the cable. Both ends of the cable clamp body 1 are rounded to avoid scratching the cable.
[0024] A wear-resistant collar 7 is provided between the connecting plate 3 and the bolt connecting plate 2. The wear-resistant collar 7 is slidably sleeved on the connecting pin 401. The wear-resistant collar 7 can prevent friction between the connecting plate 3 and the bolt connecting plate 2 when the connecting plate 3 rotates relative to the bolt connecting plate 2, which would cause the bolt connecting plate 2 to wear.
[0025] A cover plate 5 is snapped onto the inner side of the cable clamp body 1. A locking pin hole 501 is opened on the outer wall of the cover plate 5. A fixing pin 201 is inserted into the locking pin hole 501. The cover plate 5 is connected to the cable clamp body 1 through the locking pin hole 501. By covering the cable, the cable swings too much and is prevented from coming off the cable clamp body 1.
[0026] The left and right ends of the cover plate 5 are rounded to prevent the ends of the cover plate 5 from scratching the cable. The upper surface of the cover plate 5 is lower than the upper surface of the wire clamp body 1 to prevent the cover plate 5 from obstructing the insertion of the connecting pin 401.
[0027] A connecting piece 6 is fixedly installed on the outer wall of the cover plate 5. A fixing pin 601 is fixedly installed on the outer wall of the connecting piece 6. The fixing pin 601 movably passes through the outer wall of the bolt connecting plate 2. The connecting piece 6 and the fixing pin 601 are used to connect the cover plate 5 and the bolt connecting plate 2, thereby improving the connection stability between the cover plate 5 and the wire clamp body 1.
[0028] Working principle: When in use, pass the cable through the main body 1 of the clamp, then press the cover plate 5 and insert it into the main body 1 of the clamp. When inserting the cover plate 5, press it to deform it. Then align the locking pin hole 501 with the fixing pin 201 and release it. The cover plate 5 will return to its original shape, allowing the fixing pin 201 to be inserted into the locking pin hole 501. Similarly, insert the fixing pin 601 into the bolt connecting plate 2. Then insert the connecting plate 3 between the two bolt connecting plates 2. Pass the connecting pin 401 through the connecting plate 3 and the rotating cylinder 404. Then tighten the fastening nut 407 to complete the connection between the main body 1 of the clamp and the connecting plate 3. When the connecting plate 3 swings left and right relative to the connecting mechanism 4, the connecting plate 3 will drive the connecting pin 401 to rotate due to the friction between the connecting plate 3 and the connecting pin 401. At this time, the fastening nut 407 rotates synchronously with the connecting pin 401, avoiding the problem of loosening of the connection between the connecting pin 401 and the fastening nut 407.
[0029] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
Claims
1. A suspension clamp for a power transmission line, comprising a clamp body (1) and a bolt connecting plate (2), characterized in that: Two bolt connection plates (2) are provided and are symmetrically arranged about the front and back of the clamp body (1). A fixing pin (201) is inserted into the bottom end of the bolt connection plate (2). The fixing pin (201) penetrates the outer wall of the clamp body (1) and is fixedly connected to the clamp body (1). A connecting mechanism (4) is provided at the top end of the bolt connection plate (2). The bolt connection plate (2) is connected to a connecting plate (3) through the connecting mechanism (4). The connecting mechanism (4) includes a connecting pin (401) and a bearing mounting seat (402). The bearing mounting seat (402) is fixedly installed on the inner wall of the top of the bolt connecting plate (2). A bearing (403) is fixedly installed on the inner wall of the bearing mounting seat (402). A rotating cylinder (404) is fixedly installed on the inner side of the bearing (403). The end of the connecting pin (401) passes through the rotating cylinder (404). An integrally formed protrusion (405) is provided on the inner wall of the rotating cylinder (404). A groove (406) is provided on the outer wall of the connecting pin (401). The protrusion (405) is slidably disposed in the groove (406). A fastening nut (407) is threaded on the end of the connecting pin (401). The connecting pin (401) moves through the connecting plate (3). The connecting plate (3) is located between the front and rear bolt connecting plates (2).
2. The transmission line suspension clamp according to claim 1, characterized in that: The left and right ends of the clamp body (1) are both turned downwards, and the left and right ends of the clamp body (1) are both rounded.
3. A transmission line suspension clamp according to claim 1, characterized in that: A wear-resistant collar (7) is provided between the connecting plate (3) and the bolt connecting plate (2), and the wear-resistant collar (7) is slidably sleeved on the connecting pin (401).
4. A transmission line suspension clamp according to claim 1, characterized in that: The inner side of the clamp body (1) is fitted with a cover plate (5), and the outer wall of the cover plate (5) is provided with a locking pin hole (501), and the fixing pin (201) is inserted into the locking pin hole (501).
5. A transmission line suspension clamp according to claim 4, characterized in that: The left and right ends of the cover plate (5) are rounded, and the upper surface of the cover plate (5) is lower than the upper surface of the clamp body (1).
6. A transmission line suspension clamp according to claim 4, characterized in that: A connecting piece (6) is fixedly installed on the outer wall of the cover plate (5), and a fixing pin (601) is fixedly installed on the outer wall of the connecting piece (6). The fixing pin (601) movably penetrates the outer wall of the bolt connecting plate (2).