Insulator convenient to replace

Abstract

The invention discloses an insulator convenient to replace, which comprises an insulating rod, a lockset, a wire clamp and a plurality of umbrella skirts, and is characterized in that the lockset is arranged at the bottom of the insulating rod, the wire clamp comprises an upper clamp and a lower clamp which are both provided with arc-shaped grooves, the upper clamp is rotatably arranged on the lower clamp, and the umbrella skirts are arranged on the insulating rod at intervals; the locking device is used for fixing the rotated upper clamp on the lower clamp; the connecting piece is arranged on the insulating rod, a second cavity and two L-shaped sliding grooves are formed in the connecting piece, and the cavity is communicated with the L-shaped sliding grooves; the connecting device comprises a sliding block, four clamping blocks and a driving device, the sliding block is arranged in the first cavity and the second cavity in a sliding mode, and the driving device is arranged on the external cross arm and can move on the external cross arm to drive the sliding block to move up and down or rotate. Provided is a wire clamp fixing device. According to the invention, when the insulator needs to be replaced, the wire clamp does not need to be disassembled, the insulator can be rapidly replaced, and the insulator can be supported after being damaged.

Description

Technical Field

[0001] The present invention relates to the technical field of insulators, in particular to an insulator which is convenient to replace. Background Art

[0002] Insulators are special insulating components that play a vital role in overhead transmission lines. In the early days, insulators were primarily used on utility poles, but they gradually evolved into high-voltage power lines. A number of disc-shaped insulators, typically made of glass or ceramic, are hung on one end of a tower to increase creepage distance. After long-term use, insulators can age, break, or experience performance degradation, requiring replacement. To replace existing insulators, the wire clamp at the top of the insulator must be removed and the wire separated from the clamp. Because the clamp is secured with several bolts and nuts, it is inconvenient to remove and install at high altitudes, reducing replacement efficiency and presenting a drawback. Summary of the Invention

[0003] The purpose of the present invention is to solve the above technical problems and provide an insulator that is easy to replace.

[0004] The technical solution of the present invention is: an insulator that is easy to replace, comprising an insulating rod, a lock, a wire clamp and a plurality of sheds, wherein the lock is provided at the bottom of the insulating rod, the wire clamp comprises an upper clamp and a lower clamp, each of which is provided with an arc groove, the upper clamp is rotatably provided on the lower clamp, a plurality of sheds are provided at intervals on the insulating rod, the lower clamp is provided with a first cavity and two vertical slots, the first cavity and the vertical slots are communicated; and further comprising:

[0005] A locking device, used to fix the rotated upper clamp to the lower clamp;

[0006] A connecting piece, which is arranged on the insulating rod, and is provided with a second cavity and two L-shaped chutes, wherein the cavity is in communication with the L-shaped chutes;

[0007] A connecting device comprising a slider, four clamping blocks, and a driving device, wherein the slider is slidably disposed in the first cavity and the second cavity, the clamping blocks are disposed in both the vertical slot and the L-shaped slot, and the driving device is disposed on an external cross arm and is movable on the external cross arm to drive the slider to move up and down or rotate;

[0008] The wire clamp fixing device is arranged on the external cross arm and can move on the external cross arm to fix the wire clamp.

[0009] Preferably, the lower clamp is provided with two ear plates, and the upper clamp is provided with protrusions on both sides, and the protrusions are rotatably connected to the ear plates.

[0010] Preferably, the locking device includes an L-shaped connecting rod, which is provided on the upper clamp, and the driving device is used to fix the rotating connecting rod.

[0011] Preferably, the connecting member is provided with a through hole communicating with the L-shaped slide groove; the driving device includes a first base plate, a first telescopic rod, a driving rod, a pull rope and a first spring, the first base plate is arranged on the external cross arm, the first telescopic rod is arranged on the first base plate, the driving rod can move back and forth on the first telescopic rod and the driving rod is frustum-shaped, the pull rope passes through the lower clamp 302 to connect the slider and the driving rod, and the first spring is arranged in the L-shaped slide groove.

[0012] Preferably, the driving rod is T-shaped and can slide on the first telescopic rod; the driving device further includes a limit plate and a second spring, the limit plate is arranged on the driving rod, and the second spring is sleeved on the driving rod.

[0013] Preferably, the wire clamp fixing device includes a second base plate, a second telescopic rod and a fixing ring, the second base plate is arranged on the external cross arm, the second telescopic rod connects the second base plate and the fixing ring, and the fixing ring is fixedly sleeved on the lower clamp.

[0014] The beneficial effects of the present invention are as follows: in the present invention, when the insulator needs to be replaced, the wire clamp does not need to be disassembled, the insulator can be quickly replaced, and the insulator can be supported after being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the main view of the overall structure of the preferred embodiment of the present invention

[0016] Figure 2 is a cross-sectional view of the lower clamp and the connecting device in a preferred embodiment of the present invention;

[0017] Figure 3 is a schematic diagram of a connecting member in a preferred embodiment of the present invention;

[0018] Figure 4 This is a cross-sectional view of a connector in a preferred embodiment of the present invention.

[0019] Figure 5 Schematic diagram of the connecting rod in a preferred embodiment of the present invention.

[0020] Figure numerals: insulating rod 10, lock 2, wire clamp 3, upper clamp 301, lower clamp 302, first cavity 3021, vertical groove 3022, ear plate 3023, umbrella skirt 4, connector 5, second cavity 501, L-shaped slide groove 502, through hole 503, slider 6, block 7, connecting rod 8, first base plate 9, first telescopic rod 11, drive rod 12, pull rope 13, first spring 14, limit plate 15, second spring 16, second base plate 17, second telescopic rod 18, fixing ring 19. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Reference Figures 1 to 5 An insulator that is easily replaceable comprises an insulating rod 10, a lock 2, a wire clamp 3, and a plurality of sheds 4. The lock 2 is provided at the bottom of the insulating rod 10. The wire clamp 3 comprises an upper clamp 301 and a lower clamp 302, each of which is provided with an arc-shaped groove. The upper clamp 301 is rotatably disposed on the lower clamp 302. A plurality of sheds 4 are spaced apart and disposed on the insulating rod 10. The lower clamp 302 is provided with a first cavity 3021 and two vertical grooves 3022. The first cavity 3021 and the vertical grooves 3022 are in communication. The insulator also comprises:

[0023] A locking device, used to fix the rotated upper clamp 301 to the lower clamp 302;

[0024] A connecting member 5 is provided on the insulating rod 10 , and is provided with a second cavity 501 and two L-shaped chutes 502 , wherein the cavity 501 is in communication with the L-shaped chutes 502 ;

[0025] The connecting device includes a slider 6, four clamping blocks 7, and a driving device. The slider 6 is slidably disposed in the first cavity 3021 and the second cavity 501. The clamping blocks 7 are disposed in both the vertical slot 3022 and the L-shaped slot 502. The driving device is disposed on an external cross arm and can move on the external cross arm to drive the slider 6 to move up and down or rotate.

[0026] The wire clamp fixing device is arranged on the external cross arm and can move on the external cross arm to fix the wire clamp 3. In the present invention, the lock 2 includes a screw and a nut. The insulating rod 10 is fixed to the external cross arm by the cooperation of the screw and the nut. The wire clamp fixing device is installed on the external cross arm to fix the wire clamp 3. The driving device drives the slider 6 to move downward in the second cavity 501 to the bottom of the second cavity 501. At the same time, the four blocks 7 on the slider 6 move downward in the vertical groove 3022 and the L-shaped slide groove 502 respectively. The driving device then drives the slider 6 to rotate so that the two blocks 7 at the bottom of the slider 6 rotate to one side of the L-shaped slide groove 502, and the upper clamp After the upper clamp 301 and the lower clamp 302 are closed, the wire is placed in the circular groove surrounded by the upper clamp 301 and the lower clamp 302. The locking device fixes the upper clamp 301 on the lower clamp 302 to prevent the wire from detaching from the wire clamp 3, thereby achieving the installation of the insulator. When the lock 2 at the bottom of the insulator is damaged in a harsh environment, causing the insulator to detach from the external crossarm, and the bottom of the insulator has no support, the block 7 and the L-shaped slide 502 connect the connector 5 at the top of the insulating rod 10 to the lower clamp 302, and the lower clamp 302 is connected. The wire clamp fixing device is fixed to support the insulator and the wire to prevent the wire from being broken by the damaged insulator. When the insulator needs to be replaced, the nut at the bottom of the damaged insulator is first unscrewed, and the driving device and the wire clamp fixing device are both moved upward to disengage the lower clamp 302 from the connecting piece 5. The driving device works to disengage the block 7 at the bottom of the slider 6 from one side of the L-shaped slide groove 502, and the slider 6 moves upward to disengage its bottom from the connecting piece 5, so that the insulator can be removed from the external crossarm. When installing a new insulator, the driving device and the wire clamp fixing device are both moved upward to disengage the lower clamp 302 from the connecting piece 5. The fixing devices all move upward, causing the lower clamp 302 to move upward, installing the new insulator's bottom screw on the external crossarm. The driving device and the wire clamp fixing device all move downward, causing the lower clamp 302 to contact the connector 5. The nut is tightened. After the insulating rod 10 is installed on the external crossarm, the driving device operates to cause the slider 6 to fall into the second cavity 501. The block 7 at the bottom of the slider 6 moves to one side of the L-shaped slot 502, completing the installation of the new insulator. This method allows for quick replacement of insulators and provides support for damaged insulators. Specifically, the vertical slot 3022 is larger than the block 7, allowing it to rotate within it.

[0027] As a preferred embodiment of the present invention, it may also have the following additional technical features:

[0028] In this embodiment, the lower clamp 302 is provided with two ear plates 3023, and the upper clamp 301 is provided with protrusions on both sides, which are rotatably connected to the ear plates 3023. Specifically, an avoidance groove is provided at one end of the lower clamp 302 to avoid interference when the upper clamp 301 rotates.

[0029] In this embodiment, the locking device includes an L-shaped connecting rod 8, which is mounted on the upper clamp 301. The driving device is used to secure the rotating connecting rod 8. Specifically, the connecting rod 8 is provided with a circular hole, and the driving rod 12 engages with the circular hole to secure the upper clamp 301. When the upper clamp 301 needs to be rotated, the driving rod 12 is pulled leftward to disengage the right end from the circular hole.

[0030] In this embodiment, the connecting member 5 is provided with a through hole 503 which communicates with the L-shaped slide groove 502; the driving device includes a first base plate 9, a first telescopic rod 11, a driving rod 12, a pull rope 13 and a first spring 14, the first base plate 9 is arranged on the external cross arm, the first telescopic rod 11 is arranged on the first base plate 9, the driving rod 12 can move back and forth on the first telescopic rod 11 and the driving rod 12 is frustum-shaped, the pull rope 13 passes through the lower clamp 302 to connect the slider 6 and the driving rod 12, and the first spring 14 is arranged in the L-shaped slide groove 502. One end of the drive rod 12 is truncated. When the drive rod 12 is inserted into the through hole 503 and contacts the block 7, the block 7 is forced to move within the L-shaped slot 502 and compress the first spring 14, connecting the lower clamp 302 to the connector 5. When the insulator needs to be replaced, the drive rod 12 is pulled leftward to disengage the right end from the through hole 503. The block 7 is reacted by the reaction force of the first spring 14 and moves forward. Simultaneously, the pull rope 13 pulls the slider 6 upward, separating the lower clamp 302 from the connector 5 and allowing the insulator to be removed. Specifically, the first base plate 9 is fixed to the external crossarm by bolts; the first telescopic rod 11 consists of an outer tube and an inner rod, one end of which can slide within the outer tube. The first telescopic rod 11 is prior art and will not be described here.

[0031] In this embodiment, the drive rod 12 is T-shaped and can slide on the first telescopic rod 11. The drive device also includes a limit plate 15 and a second spring 16. The limit plate 15 is provided on the drive rod 12, and the second spring 16 is sleeved on the drive rod 12. When the drive rod 12 moves leftward, it compresses the second spring 16. When the force pulling the drive rod 12 is released, the drive rod 12 returns to its original position due to the reaction force of the second spring 16.

[0032] In this embodiment, the wire clamp fixing device includes a second base plate 17, a second telescopic rod 18, and a fixing ring 19. The second base plate 17 is mounted on the external crossarm. The second telescopic rod 18 connects the second base plate 17 and the fixing ring 19. The fixing ring 19 is fixedly mounted on the lower clamp 302. The lower clamp 302 is fixed to the external crossarm through the cooperation of the second telescopic rod 18 and the fixing ring 19. Specifically, the second base plate 17 is fixed to the external crossarm via bolts. The second telescopic rod 18 consists of an outer tube and an inner rod, one end of which can slide within the outer tube. The second telescopic rod 18 is prior art and will not be described here.

[0033] It should be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not preclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0034] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An insulator that is easy to replace, comprising an insulating rod (10), a lock (2), a wire clamp (3) and a plurality of sheds (4), wherein the lock (2) is provided at the bottom of the insulating rod (10), the wire clamp (3) comprises an upper clamp (301) and a lower clamp (302) both of which are provided with an arc groove, the upper clamp (301) is rotatably arranged on the lower clamp (302), and the plurality of sheds (4) are arranged at intervals on the insulating rod (10), characterized in that: The lower clamp (302) is provided with a first cavity (3021) and two vertical slots (3022), wherein the first cavity (3021) and the vertical slots (3022) are in communication with each other; and further comprises: A locking device, used for fixing the rotated upper clamp (301) on the lower clamp (302); A connecting member (5) is provided on the insulating rod (10), wherein the connecting member (5) is provided with a second cavity (501) and two L-shaped chutes (502), wherein the cavity (501) is in communication with the L-shaped chutes (502); A connecting device, comprising a slider (6), four clamping blocks (7) and a driving device, wherein the slider (6) is slidably arranged in the first cavity (3021) and the second cavity (501), the clamping blocks (7) are arranged in the vertical groove (3022) and the L-shaped sliding groove (502), and the driving device is arranged on an external cross arm and can move on the external cross arm to drive the slider (6) to move up and down or rotate; A wire clamp fixing device is arranged on an external cross arm and can move on the external cross arm for fixing the wire clamp (3).

2. The insulator that is easy to replace according to claim 1, characterized in that: The lower clamp (302) is provided with two ear plates (3023), and the upper clamp (301) is provided with protrusions on both sides, and the protrusions are rotatably connected to the ear plates (3023).

3. The insulator that is easy to replace according to claim 1, characterized in that: The locking device comprises an L-shaped connecting rod (8) which is arranged on the upper clamp (301), and the driving device is used to fix the rotating connecting rod (8).

4. The insulator that is easy to replace according to claim 1, characterized in that: The connecting member (5) is provided with a through hole (503) communicating with the L-shaped sliding groove (502); the driving device includes a first base plate (9), a first telescopic rod (11), a driving rod (12), a pull rope (13) and a first spring (14), the first base plate (9) is arranged on the external cross arm, the first telescopic rod (11) is arranged on the first base plate (9), the driving rod (12) can move back and forth on the first telescopic rod (11) and the driving rod (12) is truncated cone-shaped, the pull rope (13) passes through the lower clamp (302) to connect the slider (6) and the driving rod (12), and the first spring (14) is arranged in the L-shaped sliding groove (502).

5. The insulator that is easy to replace according to claim 4, characterized in that: The driving rod (12) is T-shaped and can slide on the first telescopic rod (11); the driving device further comprises a limit plate (15) and a second spring (16); the limit plate (15) is arranged on the driving rod (12), and the second spring (16) is sleeved on the driving rod (12).

6. The insulator that is easy to replace according to claim 1, characterized in that: The wire clamp fixing device comprises a second base plate (17), a second telescopic rod (18) and a fixing ring (19); the second base plate (17) is arranged on an external cross arm; the second telescopic rod (18) connects the second base plate (17) and the fixing ring (19); and the fixing ring (19) is fixedly sleeved on the lower clamp (302).

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