Anti-string-breakage insulator capable of improving suspension

Abstract

The utility model provides an anti-string-breakage insulator capable of improving suspension, which belongs to the technical field of power transmission line fittings and comprises a triangular connecting plate, a first insulator string, a second insulator string, a connecting piece and a wire clamp, and the upper corner of the triangular connecting plate is fixedly connected with the first insulator string through a pin shaft; according to the utility model, the insulator string is still connected with a high-voltage line iron tower in a suspension string manner, so that the tower is not influenced, and for a lead, the height of a suspension point is changed from the lower end of a linear string to an end connection point of the second insulator string, so that the lead is prevented from being damaged. Without changing the height of the high-voltage iron tower, a wire suspension point can be increased by a certain distance, the safety is improved, the two second insulator strings are arranged to form an included angle of 120 degrees, the two second insulator strings below do not need to be straightened through a high-voltage wire, the tension of the high-voltage wire to the second insulator strings is reduced, and the safety of the high-voltage iron tower is improved. And the possibility of fracture of the second insulator string is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of power transmission line accessories, and in particular to an insulator that can improve suspension and prevent string breakage. Background Technology

[0002] Typically, the insulator strings of straight-line towers of transmission lines are straight suspension insulator strings. For different line voltage levels, pollution level at the tower, and lightning conditions, the insulator strings used have different lengths. The distance limit of the transmission line to surrounding objects is mainly determined by the electric field strength under the line. Therefore, increasing the suspension height of the line conductor can significantly reduce the ground electric field strength.

[0003] As disclosed in the prior art, Chinese patent CN201247655Y discloses a suspension tension insulator string structure for increasing the conductor suspension height. Ultra-high voltage transmission lines using this inverted T-shaped suspension tension insulator string can increase the conductor suspension height and reduce the requirements for the width of the line corridor. The conductor suspension point height changes from the lower end of the straight string to the connection point of the inverted T-shaped string suspension section and tension section. Therefore, the conductor suspension point can be raised by a certain distance without modifying the tower, and the cost is relatively low.

[0004] However, this device sets the insulator strings in an inverted T-shape, requiring the high-voltage power line to straighten the two tension sections of the insulator strings below. This requires a large straightening force, which can easily lead to the insulator strings breaking. Therefore, a suspension-enhancing insulator designed to prevent string breakage is needed to solve the above problem. Utility Model Content

[0005] The purpose of this invention is to solve the problems existing in the above-mentioned background technology, and to propose an insulator that can improve suspension and prevent string breakage.

[0006] The technical problem to be solved by this utility model is to provide an insulator that can improve suspension and prevent string breakage, thereby solving the problem in the prior art where the insulator string requires the high-voltage power line to straighten the two tension sections of the insulator string below, which results in a large straightening force and is prone to causing the insulator string to break.

[0007] This utility model provides an anti-breakage insulator that can improve suspension, including a triangular connecting plate, a first insulator string, a second insulator string, a connector, and a conductor clamp. The first insulator string is fixedly connected to the upper corner of the triangular connecting plate by a pin, and the second insulator string is fixedly connected to the bottom left and right corners of the triangular connecting plate by a pin. A connector is fixedly installed at the top of the first insulator string, and a conductor clamp is fixedly installed at the end of the second insulator string away from the triangular connecting plate.

[0008] Preferably, the angle between the two second insulator strings is 120°.

[0009] Preferably, the connector is fixedly connected to the high-voltage line tower, and both conductor clamps hold the high-voltage wires.

[0010] In this embodiment, the high-voltage wire located between the two wire clamps is in a downward-curving arc shape, and the distance between the high-voltage wire located between the two wire clamps and the connector is equal to the distance between the wire clamp and the connector.

[0011] Preferably, the connector includes a tower connecting rod, a first inverted concave frame, a first pin, a rotating rod, a second inverted concave frame, a second pin, and an insulator string connecting rod. The tower connecting rod is fixedly connected to the high-voltage line tower. The bottom of the connecting rod is fixedly provided with the first inverted concave frame. The rotating rod is provided through the first pin through the lower inner side of the first inverted concave frame. The bottom of the rotating rod is fixedly provided with the second inverted concave frame. The bottom of the second inverted concave frame is provided through the second pin through the second pin. The bottom of the insulator string connecting rod is connected to the first insulator string.

[0012] Preferably, the rotating rod is rotatably mounted on the first pin, and the insulator string connecting rod is rotatably mounted on the second pin.

[0013] Preferably, two springs are sleeved on both the first and second pins, with the two springs on the first pin abutting against the first inverted concave frame and the rotating rod, and the two springs on the second pin abutting against the second inverted concave frame and the insulator string connecting rod, respectively.

[0014] Compared with the prior art, this utility model has at least the following beneficial effects:

[0015] 1. The insulator string of this utility model connects high-voltage line towers via a suspension string method, thus having no impact on the tower. For the conductor, the suspension point height changes from the lower end of the straight string to the end connection point of the second insulator string. Without changing the height of the high-voltage tower, the conductor suspension point can be raised by a certain distance, increasing safety. Furthermore, by setting the two second insulator strings at a 120° angle, there is no need to straighten the two lower second insulator strings through the high-voltage power line, reducing the tension of the high-voltage power line on the second insulator strings and lowering the possibility of breakage.

[0016] 2. This utility model, by incorporating a connector, ensures that when the device is subjected to side wind, the lateral force acts on the first and second insulator strings, and the connecting rod of the insulator strings rotates along the second pin shaft, preventing the connector from breaking due to side wind. When subjected to left and right wind, the force acts on the first and second insulator strings, and the rotating rod rotates along the first pin shaft, preventing the connector from breaking due to left and right wind, thus ensuring the service life of the connector and achieving the effect of preventing breakage.

[0017] 3. This utility model incorporates a spring. When subjected to lateral wind, the lateral force acts on the first and second insulator strings, causing the insulator string connecting rod to rotate along the second pin. Simultaneously, the rotating rod moves along the first pin, compressing the spring. The spring buffers the movement force of the rotating rod, preventing damage from lateral wind. When subjected to lateral wind, the force acts on the first and second insulator strings, causing the rotating rod to rotate along the first pin. Simultaneously, the insulator string connecting rod moves along the second pin, compressing the spring. The spring's elasticity buffers the insulator string connecting rod, preventing damage from lateral wind, further ensuring the service life of the connector and achieving a breakage prevention effect. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the utility model in use.

[0021] Figure 3 This is a three-dimensional structural diagram of the connector of this utility model.

[0022] Figure 4 This is a front view structural cross-sectional diagram of the connector of this utility model.

[0023] Figure 5 This is a side view of the cross-sectional structure of the connector of this utility model.

[0024] [Figure Labels]

[0025] 1. Triangular connecting plate; 2. First insulator string; 3. Second insulator string; 4. Connecting piece; 401. Tower connecting rod; 402. First inverted concave frame; 403. First pin; 404. Rotating rod; 405. Second inverted concave frame; 406. Second pin; 407. Insulator string connecting rod; 408. Spring; 5. Wire clamp. Detailed Implementation

[0026] Example:

[0027] like Figures 1-5 As shown, an embodiment of this utility model provides an anti-breakage insulator that can improve suspension, including a triangular connecting plate 1, a first insulator string 2, a second insulator string 3, a connector 4, and a conductor clamp 5. The first insulator string 2 is fixedly connected to the upper corner of the triangular connecting plate 1 by a pin, and the second insulator string 3 is fixedly connected to the bottom left and right corners of the triangular connecting plate 1 by a pin. The connector 4 is fixedly installed at the top of the first insulator string 2, and the conductor clamp 5 is fixedly installed at the end of the second insulator string 3 away from the triangular connecting plate 1.

[0028] In this embodiment, the angle between the two second insulator strings 3 is 120°, which reduces the tension of the high-voltage wire on the second insulator strings 3.

[0029] The insulator string of this utility model is used to connect the high-voltage line towers by means of suspension string, so it has no impact on the tower. For the conductor, the suspension point height changes from the lower end of the straight string to the end connection point of the second insulator string 3. Without changing the height of the high-voltage tower, the suspension point of the conductor can be raised by a certain distance, thus increasing safety.

[0030] Furthermore, by setting the two second insulator strings 3 at a 120° angle, it is not necessary to straighten the two lower second insulator strings through high-voltage power lines, thereby reducing the tension of the high-voltage power lines on the second insulator strings 3 and reducing the possibility of the second insulator strings breaking.

[0031] In this embodiment, the connector 4 is fixedly connected to the high-voltage line tower, and both wire clamps 5 clamp the high-voltage wires, which facilitates the connection of the high-voltage wires.

[0032] In this embodiment, the high-voltage wire between the two wire clamps 5 is in a downward curved arc shape, and the distance between the high-voltage wire between the two wire clamps 5 and the connector 4 is equal to the distance between the wire clamp 5 and the connector 4, ensuring that the distance between the high-voltage wire and the tower is always consistent.

[0033] In this embodiment, the connector 4 includes a tower connecting rod 401, a first inverted concave frame 402, a first pin 403, a rotating rod 404, a second inverted concave frame 405, a second pin 406, and an insulator string connecting rod 407. The tower connecting rod 401 is fixedly connected to the high-voltage line tower. The bottom of the connecting rod 401 is fixedly provided with the first inverted concave frame 402. The rotating rod 404 is provided through the first pin 403 on the lower inner side of the first inverted concave frame 402. The bottom of the rotating rod 404 is fixedly provided with the second inverted concave frame 405. The bottom inner side of the second inverted concave frame 405 is provided through the second pin 406. The bottom of the insulator string connecting rod 407 is connected to the first insulator string 2.

[0034] In this embodiment, the rotating rod 404 is rotatably mounted on the first pin 403, and the insulator string connecting rod 407 is rotatably mounted on the second pin 406.

[0035] By incorporating a connector, when the device is subjected to side wind, the lateral force acts on the first insulator string 2 and the second insulator string 3, and the insulator string connecting rod 407 rotates along the second pin 406, preventing the connector 4 from breaking due to side wind. When subjected to left or right wind, the force acts on the first insulator string 2 and the second insulator string 3, and the rotating rod 404 rotates along the first pin 403, preventing the connector 4 from breaking due to left or right wind, thus ensuring the service life of the connector 4 and achieving the effect of preventing breakage.

[0036] In this embodiment, two springs 408 are sleeved on both the first pin 403 and the second pin 406. The two springs 408 on the first pin 403 abut against the first inverted concave frame 402 and the rotating rod 404, respectively, and the two springs 408 on the second pin 406 abut against the second inverted concave frame 405 and the insulator string connecting rod 407, respectively.

[0037] By incorporating a spring 408, when subjected to lateral wind, the lateral force acts on the first insulator string 2 and the second insulator string 3. The insulator string connecting rod 407 rotates along the second pin 406, and the rotating rod 404 moves along the first pin 403, compressing the spring 408. The spring 408 buffers the movement force of the rotating rod 404, preventing damage to the rotating rod 404 from lateral wind. When subjected to left-right wind, the force acts on the first insulator string 2 and the second insulator string 3. The rotating rod 404 rotates along the first pin 403, and the insulator string connecting rod 407 moves along the second pin 406, compressing the spring 408. The elastic force of the spring 408 buffers the insulator string connecting rod 407, preventing damage to the insulator string connecting rod 407 from left-right wind, further ensuring the service life of the connector 4 and achieving the effect of preventing breakage.

[0038] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these should also be considered within the scope of protection of this utility model. These will not affect the implementation effect of this utility model or the practicality of the patent.

Claims

1. A suspension insulator designed to prevent string breakage and improve suspension sag, characterized in that: The device includes a triangular connecting plate (1), a first insulator string (2), a second insulator string (3), a connector (4), and a wire clamp (5). The upper corner of the triangular connecting plate (1) is fixedly connected to the first insulator string (2) by a pin. The two bottom left and right corners of the triangular connecting plate (1) are fixedly connected to the second insulator string (3) by a pin. The top of the first insulator string (2) is fixedly provided with a connector (4). The end of the second insulator string (3) away from the triangular connecting plate (1) is fixedly provided with a wire clamp (5).

2. The anti-breakage insulator with improved suspension as described in claim 1, characterized in that: The angle between the two second insulator strings (3) is 120°.

3. The suspension-enhancing anti-string breakage insulator according to claim 2, characterized in that: The connector (4) is fixedly connected to the high-voltage tower, and both conductor clamps (5) clamp the high-voltage wire.

4. The anti-breakage insulator with improved suspension according to claim 3, characterized in that: The high-voltage wire between the two wire clamps (5) is curved downwards, and the distance between the high-voltage wire between the two wire clamps (5) and the connector (4) is equal to the distance between the wire clamp (5) and the connector (4).

5. The anti-breakage insulator with improved suspension according to claim 1, characterized in that: The connector (4) includes a tower connecting rod (401), a first inverted concave frame (402), a first pin (403), a rotating rod (404), a second inverted concave frame (405), a second pin (406), and an insulator string connecting rod (407). The tower connecting rod (401) is fixedly connected to the high-voltage line tower. The bottom of the connecting rod (401) is fixedly provided with the first inverted concave frame (402). The rotating rod (404) is provided through the first pin (403) on the lower inner side of the first inverted concave frame (402). The bottom of the rotating rod (404) is fixedly provided with the second inverted concave frame (405). The bottom of the second inverted concave frame (405) is provided through the second pin (406) on the lower inner side of the second inverted concave frame (405). The bottom of the insulator string connecting rod (407) is connected to the first insulator string (2).

6. The anti-breakage insulator with improved suspension according to claim 5, characterized in that: The rotating rod (404) is rotatably mounted on the first pin (403), and the insulator string connecting rod (407) is rotatably mounted on the second pin (406).

7. The anti-breakage insulator with improved suspension according to claim 6, characterized in that: Two springs (408) are sleeved on both the first pin (403) and the second pin (406). The two springs (408) on the first pin (403) abut against the first inverted concave frame (402) and the rotating rod (404) respectively, and the two springs (408) on the second pin (406) abut against the second inverted concave frame (405) and the insulator string connecting rod (407) respectively.

Images