A line insulating protection device with a detachable support

Abstract

The utility model discloses a line can drop support post insulation protection device, including insulator main part and installation fixed establishment, installation fixed establishment sets up at the bottom of insulator main part, the utility model relates to electrical equipment technical field. The line can drop support post insulation protection device, through setting up installation fixed establishment, the installation fixed establishment of this device sets up at the bottom of insulator main part, and its main part is the connecting seat of circular, is provided with a plurality of bosses on its outside, and the upper surface of a plurality of bosses is all vertically through and connects the hole of setting, through this structure, can very conveniently install and fix on some standard specifications' cross arm, and still be provided with two clamping pieces of opposite direction movement at the bottom of connecting seat, when installing on the cross arm of non - standard, can through two clamping pieces and hold fixed, because the spacing between two clamping pieces is adjustable, so can adapt to various specifications' cross arm structure, makes the adaptability of this device higher.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology, specifically to a detachable support insulation protection device for power lines. Background Technology

[0002] An insulator is a special type of insulating control, primarily used in overhead transmission lines. Its core function is to support the conductors and prevent current from returning to the ground. Insulators ensure that current does not directly contact the conductor and the ground by increasing the creepage distance, thereby protecting the safe operation of the circuit.

[0003] Chinese Patent Publication No. CN 212874175 U discloses a detachable support post protection device, which includes an insulator, an insulating jacket covering the outside of the insulator, and upper and lower fittings at both ends of the insulator. The insulator, from bottom to top, includes a lower insulating rod, a lower conductive rod, a resistor assembly, an upper conductive rod, an upper insulating rod, and a clamping body. An upper drain rod extending outwards is provided on the side of the clamping body, with its outer end bent downwards vertically to form a discharge section. A lower drain rod extending outwards is provided near the side of the upper conductive rod, with its outer end bent upwards to form a contact section. The contact end of the contact section and the discharge end of the discharge section face each other to form a discharge gap. The insulating jacket covers the outer walls of both the upper and lower drain rods. This device functions as a line support insulator and effectively protects the line from lightning damage.

[0004] The aforementioned patent can effectively protect the line, but the installation structure of the aforementioned patent is relatively simple. It can only be installed on the crossarm of the utility pole through the vertical threaded post at the bottom or through the external L-shaped connecting piece. In addition to the standard crossarm, some remote areas also use wooden crossarms, and the specifications of the crossarms are different. The installation structure of the aforementioned patent is difficult to install directly on these crossarms, which is quite inconvenient. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a detachable support post insulation protection device for power lines, which solves the problem that existing insulation protection devices cannot be installed on non-standard crossarms.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a detachable support post insulation protection device for power lines, comprising an insulator body and an installation and fixing mechanism;

[0007] The installation and fixing mechanism is located at the bottom end of the insulator body;

[0008] The mounting and fixing mechanism includes a circular connecting seat. Multiple protrusions are fixedly connected to the bottom of the outer surface of the connecting seat. Each of the protrusions has a vertically penetrating connecting hole. A transverse groove is formed radially at the bottom of the connecting seat. A fixing block is fixedly connected to the middle of the transverse groove. A transversely penetrating mounting opening is formed in the middle of the fixing block. A bidirectional threaded rod is rotatably connected to the inside of the mounting opening. Both ends of the bidirectional threaded rod are threaded with threaded sleeves. Movable blocks are fixedly connected to the outer surfaces of the two threaded sleeves. Clamping pieces are vertically fixedly connected to the bottom ends of the two movable blocks.

[0009] Limiting guide structures are provided on both sides of the fixing block.

[0010] Furthermore, the two limiting guide structures are identical in structure. One of the limiting guide structures includes a limiting rod that is laterally fixed to one side surface of the fixed block. The side surface of the movable block on the same side is laterally provided with a sliding hole that corresponds to and fits the limiting rod. The movable block is slidably connected to the outer surface of the limiting rod through the sliding hole.

[0011] Furthermore, the lengths of the threaded rods on both sides are adapted to the lengths of the limiting rods on both sides.

[0012] Furthermore, one end of the bidirectional threaded rod is fixedly connected to a rotating handle, and bolt holes are transversely opened at the bottom end of the outer surface of the plurality of clamping plates.

[0013] Furthermore, the tops of the multiple connecting holes are all expanded outward to form a recessed groove.

[0014] Furthermore, a stud is vertically fixed to the bottom end of the insulator body, and a screw hole adapted to the stud is vertically opened at the center of the top end of the connecting seat. The mounting and fixing mechanism is detachably installed at the bottom end of the insulator body through the screw hole.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This line detachable post insulation protection device, through the setting of an installation and fixing mechanism, is set at the bottom of the insulator body. The body is a circular connecting seat with multiple protrusions on its outer side. The upper surface of the multiple protrusions is vertically opened with connecting holes. With this structure, it can be easily installed and fixed on some standard crossarms. At the same time, two clamping plates that can move in opposite directions are also set at the bottom of the connecting seat. When installed on non-standard crossarms, they can be clamped and fixed by the two clamping plates. Since the distance between the two clamping plates is adjustable, it can adapt to crossarm structures of various specifications, making the device more adaptable. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a front view structural diagram of the present utility model;

[0018] Figure 3 This is a schematic diagram of the bottom structure of the mounting and fixing mechanism in this utility model.

[0019] In the diagram: 1-Insulator body, 2-Stud, 3-Installation and fixing mechanism, 31-Connecting seat, 32-Protrusion, 33-Connecting hole, 34-Horizontal groove, 35-Fixing block, 36-Double threaded rod, 37-Threaded sleeve, 38-Moving block, 39-Limiting rod, 310-Rotating handle, 311-Clamping piece, 312-Bolt hole. 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. 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.

[0021] Please see Figure 1-3 This utility model provides a technical solution: a detachable support post insulation protection device for power lines, comprising an insulator body 1 and an installation and fixing mechanism 3;

[0022] The mounting and fixing mechanism 3 is located at the bottom end of the insulator body 1;

[0023] The mounting and fixing mechanism 3 is used to realize the installation on a standard or non-standard crossarm in this embodiment. It includes a circular connecting seat 31. Multiple protrusions 32 are fixedly connected to the bottom of the outer surface of the connecting seat 31. Each of the multiple protrusions 32 has a vertically penetrating connecting hole 33. A transverse groove 34 is formed radially at the bottom of the connecting seat 31. A fixing block 35 is fixedly connected to the middle of the transverse groove 34. A transversely penetrating installation port is formed in the middle of the fixing block 35. A bidirectional threaded rod 36 is rotatably connected to the inside of the installation port. Threaded sleeves 37 are threaded to both ends of the bidirectional threaded rod 36. Movable blocks 38 are fixedly connected to the outer surfaces of the two threaded sleeves 37. Clamping pieces 311 are vertically fixedly connected to the bottom ends of the two movable blocks 38.

[0024] Limiting guide structures are provided on both sides of the fixing block 35.

[0025] The tops of multiple connecting holes 33 are all expanded outward to form a recessed groove.

[0026] Bearings are fixedly connected to both ends inside the mounting port. The middle part of the bidirectional threaded rod 36 has a smooth surface and is connected to the inner ring of the two bearings. Through this structure, the bidirectional threaded rod 36 is rotatably connected to the inside of the mounting port, ensuring that it can rotate axially without causing lateral displacement.

[0027] When in use, the device can be installed using the mounting and fixing mechanism 3. The mounting and fixing mechanism 3 is equipped with a connecting seat 31, and multiple protrusions 32 are fixedly connected to the outer surface of the connecting seat 31. The upper surface of each of the multiple protrusions 32 is vertically through-holes 33. When installing and fixing the device on a standard crossarm, the bolts are passed through the connecting holes 33 to fix the device on the crossarm. When it is necessary to install the device on a non-standard crossarm, the bidirectional threaded rod 36 can be rotated. During its rotation, the two threaded sleeves 37 move in opposite directions, which in turn drives the two movable blocks 38 and the clamping plates 311 at their bottom ends to move in opposite directions. Finally, the device is clamped and fixed on the crossarm by the clamping plates 311 on both sides. Since the spacing of the clamping plates 311 can be adjusted, the device can be adapted to crossarm structures of various specifications, which improves the convenience of installation.

[0028] Both of the limiting guide structures have the same structure. One of the limiting guide structures includes a limiting rod 39 that is laterally fixed to one side surface of the fixed block 35. The side surface of the movable block 38 on the same side is laterally opened with a sliding hole that corresponds to and fits the limiting rod 39. The movable block 38 is slidably connected to the outer surface of the limiting rod 39 through the sliding hole.

[0029] The lengths of the threaded rods 36 on both sides are adapted to the lengths of the limiting rods 39 on both sides.

[0030] The limiting rod 39 can limit and guide the movable block 38, so that it and the threaded sleeve 37 fixedly connected to it cannot rotate synchronously with the rotation of the bidirectional threaded rod 36.

[0031] One end of the bidirectional threaded rod 36 is fixedly connected to a rotating handle 310.

[0032] The rotating handle 310 allows staff to easily control the rotation of the bidirectional threaded rod 36.

[0033] Bolt holes 312 are horizontally opened at the bottom of the outer surface of multiple clamping pieces 311.

[0034] After the device is fixedly clamped by the clamping piece 311, the screw can be passed through the bolt hole 312 and tightened onto the crossarm of the utility pole, thereby improving the fixing effect and stability of the structure.

[0035] A stud 2 is vertically fixed to the bottom of the insulator body 1. A screw hole that matches the stud 2 is vertically opened at the top center of the connecting seat 31. The mounting and fixing mechanism 3 is detachably installed at the bottom of the insulator body 1 through the screw hole.

[0036] The mounting and fixing mechanism 3 is installed at the bottom of the insulator body 1 by means of a threaded connection. This structure provides a stable connection and is convenient for installation and disassembly. Since the performance of the insulator body 1 will degrade after a period of use and needs to be replaced, the structure of the connecting seat 31 will not have this problem and can be used for a long time. When it is necessary to replace the insulator body 1, the insulator body 1 can be directly removed from the connecting seat 31 and replaced with a new insulator body 1, which saves costs and improves the efficiency of replacement operations.

[0037] When installing and fixing the device on a standard crossarm, first align the multiple connecting holes 33 with the standard points on the crossarm, then pass the bolts through the connecting holes 33 and tighten them onto the crossarm to fix the device on the crossarm. When it is necessary to install the device on a non-standard crossarm, the bidirectional threaded rod 36 can be rotated. During its rotation, it drives the two threaded sleeves 37 to move in opposite directions, which in turn drives the two movable blocks 38 and their bottom clamping plates 311 to move in opposite directions. Finally, the device is clamped and fixed on the crossarm by the clamping plates 311 on both sides. Since the spacing of the clamping plates 311 can be adjusted, the device can be adapted to crossarm structures of various specifications, which improves the convenience of the device during installation.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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. A detachable support post insulation protection device for power lines, characterized in that: It includes the insulator body (1) and the installation and fixing mechanism (3); The installation and fixing mechanism (3) is located at the bottom end of the insulator body (1); The mounting and fixing mechanism (3) includes a circular connecting seat (31). Multiple protrusions (32) are fixedly connected to the bottom of the outer surface of the connecting seat (31). Each of the multiple protrusions (32) has a vertically penetrating connecting hole (33). A transverse groove (34) is provided at the bottom of the connecting seat (31) along its radial direction. A fixing block (35) is fixedly connected in the middle of the transverse groove (34). A transversely penetrating mounting opening is provided in the middle of the fixing block (35). A bidirectional threaded rod (36) is rotatably connected to the inside of the mounting opening. Threaded sleeves (37) are threaded to both ends of the bidirectional threaded rod (36). Movable blocks (38) are fixedly connected to the outer surfaces of the two threaded sleeves (37). Clamping pieces (311) are vertically fixedly connected to the bottom ends of the two movable blocks (38). Both sides of the fixing block (35) are provided with limit guide structures; The two limiting guide structures are identical in structure. One of the limiting guide structures includes a limiting rod (39) that is laterally fixed to one side surface of the fixed block (35). The side surface of the movable block (38) on the same side is laterally provided with a sliding hole that corresponds to and fits the limiting rod (39). The movable block (38) is slidably connected to the outer surface of the limiting rod (39) through the sliding hole.

2. The detachable support post insulation protection device for power lines according to claim 1, characterized in that: The lengths of the threaded rods (36) on both sides are adapted to the lengths of the limiting rods (39) on both sides.

3. The detachable support post insulation protection device for power lines according to claim 1, characterized in that: One end of the bidirectional threaded rod (36) is fixedly connected to a rotating handle (310), and bolt holes (312) are transversely opened at the bottom of the outer surface of the plurality of clamping plates (311).

4. The detachable support post insulation protection device for power lines according to claim 1, characterized in that: The top ends of the multiple connecting holes (33) are all expanded outward to form a recessed groove.

5. The detachable support post insulation protection device for power lines according to claim 1, characterized in that: The bottom end of the insulator body (1) is vertically fixed with a stud (2), and the top center of the connecting seat (31) is vertically provided with a screw hole that matches the stud (2). The mounting and fixing mechanism (3) is detachably installed at the bottom end of the insulator body (1) through the screw hole.

Images