Fixing device for three-post insulator

Abstract

The utility model relates to the field of three-post insulator processing, in particular to a fixing device for a three-post insulator, which comprises a supporting mechanism, and the supporting mechanism comprises two supporting legs which are arranged at an interval; the limiting mechanism comprises a supporting seat, the supporting seat is arranged on the top surfaces of the two supporting legs, and a clamping piece is arranged on the supporting seat; according to the utility model, through the arrangement of the clamping piece, the three-post insulator is preliminarily fixed, and the elastic material of the clamping piece is selected, so that the abrasion of the three-post insulator is avoided, the friction force of clamping is increased, and the three-post insulator is prevented from falling off; through the arrangement of the fixing mechanism, the three-post insulator is further fixed, and through the arrangement of the connecting piece in a lever mode, the fixing of the three-post insulator can be met, and the disassembly of the three-post insulator is facilitated; the device is simple in overall structure and high in practicability.

Description

Technical Field

[0001] This utility model relates to the field of three-post insulator processing technology, and in particular to a fixing device for three-post insulators. Background Technology

[0002] Three-post insulators are widely used in power transmission and distribution systems. As a key component of power equipment, they primarily support and secure the conductors of power lines, while also providing insulation to prevent contact between the conductors and other electrical equipment or the ground, ensuring the safe operation of the power system. In high-voltage power lines, three-post insulators have become commonly used insulation devices due to their stability and durability. With the rapid development of the power industry, especially the construction of high-voltage and ultra-high-voltage transmission lines, higher requirements have been placed on the performance of insulators. Currently, the use of low-temperature plasma treatment to improve the insulation performance of three-post insulators has received widespread attention. During the treatment process, based on the charge accumulation distribution on the surface of the three-post insulator, low-temperature plasma treatment is applied to the corresponding parts, alleviating the charge accumulation in the corresponding parts under operating conditions, thereby improving its insulation performance.

[0003] However, during surface treatment using plasma jets, it was found that the three-post insulator, with its triangular star shape and the requirement that the surfaces of all three posts not be damaged, is difficult to fix using conventional methods. The central section of the three-post insulator is a circular tube, which is typically used for fixation during treatment, further increasing the difficulty. Additionally, the three posts of the three-post insulator are approximately cylindrical, requiring rotation during surface treatment to ensure all surfaces are treated by the low-temperature plasma.

[0004] In summary, this utility model proposes a fixing device for a three-post insulator. This device stably connects the three-post insulator to the rotating platform to achieve the rotation processing effect. On the other hand, it fixes the three-post insulator itself through the circular tube, avoiding contact with the insulator surface. Moreover, it can prevent the three-post insulator from flipping or shifting during fixing, which helps to process the surface of the three-post insulator. Utility Model Content

[0005] In view of the problem of inconvenient fixing during the surface treatment process of three-post insulators in the above or existing technologies, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a fixing device for a three-post insulator.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a support mechanism, wherein the support mechanism includes two support legs spaced apart;

[0008] A limiting mechanism, the limiting mechanism including a support base, the support base being disposed on the top surface of the two support feet, and a snap-fit ​​component being disposed on the support base.

[0009] As a preferred embodiment of the fixing device for the three-post insulator of this utility model, the two supporting legs are symmetrically arranged in an inverted trapezoidal shape.

[0010] In a preferred embodiment of the fixing device for the three-post insulator of this utility model, the supporting foot includes a top plate and a bottom plate, a side plate is provided between the top plate and the bottom plate, and the top plate and the bottom plate are arranged parallel to each other.

[0011] As a preferred embodiment of the fixing device for the three-post insulator of this utility model, the support base includes a support plate, and baffles are provided on the top surface of the support plate near both ends.

[0012] As a preferred embodiment of the fixing device for the three-post insulator of this utility model, the snap-fit ​​component includes a radial limiting plate, the top surface of which is arc-shaped, and axial limiting plates are provided at both ends of the radial limiting plate.

[0013] As a preferred embodiment of the fixing device for the three-post insulator of this utility model, a limiting groove is formed on the bottom surface of the radial limiting plate and the outer surface of the axial limiting plate, and the limiting groove is adapted to the support base.

[0014] As a preferred embodiment of the fixing device for the three-post insulator of this utility model, it further includes a fixing mechanism, which is disposed at one end of the limiting mechanism and includes a fixing member, a connecting member disposed on the fixing member, and a pressure applying member disposed at the other end of the connecting member.

[0015] As a preferred embodiment of the fixing device for the three-post insulator of this utility model, the fixing member has an arc-shaped cross-section, and the inner surface of the fixing member is adapted to the surface of the circular tube in the middle of the three-post insulator.

[0016] As a preferred embodiment of the fixing device for the three-post insulator of this utility model, the connecting member is arranged in a long strip shape, the middle of the connecting member is hinged to the top surface of the baffle, and the two ends are adapted to move up and down relative to the hinge point.

[0017] As a preferred embodiment of the fixing device for the three-post insulator of this utility model, the pressure-applying component includes a cylindrical spring, the bottom surface of which is disposed on the top plate, and a support plate is disposed on the top surface, the support plate being adapted to the connecting component.

[0018] The beneficial effects of the fixing device for three-post insulators of this utility model are as follows: The device uses a snap-fit ​​component to initially fix the three-post insulator. The use of an elastic material for the snap-fit ​​component avoids wear on the insulator and increases friction during the snap-fit, preventing the insulator from falling off. The fixing mechanism further secures the insulator. The lever-type connecting component not only secures the insulator but also facilitates its disassembly. The device has a simple overall structure and strong practicality. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall fixing device for a three-post insulator.

[0021] Figure 2 This is a schematic diagram of the fixing device for the three-post insulator and the structure after the three-post insulator is assembled.

[0022] Figure 3 This is a schematic diagram of the support base.

[0023] Figure 4 This is a schematic diagram of the snap-fit ​​connector.

[0024] Figure 5 This is a structural diagram of the supporting leg. Detailed Implementation

[0025] To enable those skilled in the art to better understand this utility model, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0026] The terminology used in this invention refers to those general terms currently widely used in the art in consideration of the functionality of this invention; however, these terms may vary according to the intent, precedent, or new technology of those skilled in the art. Furthermore, specific terms may be chosen by the applicant, and in such cases, their detailed meanings will be described in the detailed description of this invention. Therefore, the terminology used in this specification should not be construed as simple names, but rather based on the meaning of the terms and the overall description of this invention.

[0027] Reference Figure 1This embodiment provides a fixing device for a three-post insulator, including a support mechanism 1, which is used to fix the rotating platform n.

[0028] In one embodiment provided in this application, reference is made to Figure 1 The support mechanism 1 includes two support legs 11 spaced apart.

[0029] Specifically, refer to Figure 2 The two support feet 11 are symmetrically arranged in an inverted trapezoidal shape. The inverted trapezoidal structure facilitates the top of the support foot 11 to support the limiting mechanism 2, and the bottom is fixedly connected to the rotating platform n.

[0030] Furthermore, refer to Figure 5 The support foot 11 includes a top plate 111 and a bottom plate 112. A side plate 113 is provided between the top plate 111 and the bottom plate 112. The top plate 111 and the bottom plate 112 are arranged parallel to each other.

[0031] The top plate 111 and the bottom plate 112 are respectively provided with through holes, so that the top plate 111 can be bolted to the support plate 211 and the bottom plate 112 can be bolted to the rotating platform n.

[0032] In one embodiment provided in this application, reference is made to Figure 5 The angle between the top plate 111 and the side plate 113 is an acute angle, and the angle between the bottom plate 112 and the side plate 113 is an obtuse angle.

[0033] In one embodiment provided in this application, reference is made to Figure 1 The fixing device for the three-post insulator also includes a limiting mechanism 2. The limiting mechanism 2 includes a support base 21, which is used to install the snap-fit ​​component 22 and is fixedly connected to the support leg 11, so that the device is installed as a whole. Further, the support base 21 is disposed on the top surface of the two support legs 11, and the support base 21 is provided with the snap-fit ​​component 22, which is used to snap-fit ​​with the circular tube in the middle of the three-post insulator. (Refer to...) Figure 2 .

[0034] In one embodiment provided in this application, reference is made to Figure 3 The support base 21 includes a support plate 211. A baffle 212 is welded to the top surface of the support plate 211 near both ends. The baffle 212 is perpendicular to the support plate 211. The distance between the two baffles 212 can accommodate the circular tube in the middle of the three-post insulator.

[0035] In one embodiment provided in this application, reference is made to Figure 4The snap-fit ​​component 22 is made of thermoplastic polyurethane and specifically includes a radial limiting plate 221. The top surface of the radial limiting plate 221 is arc-shaped, and the shape of the top surface of the radial limiting plate 221 is consistent with the arc shape of the inner circular surface of the circular tube in the middle of the three-post insulator, so as to prevent the three-post insulator from shaking after being sleeved on the radial limiting plate 221.

[0036] The radial limiting plate 221 has axial limiting plates 222 integrally formed at both ends. The axial limiting plates 222 are perpendicular to the radial limiting plate 221. The distance between the two axial limiting plates 222 is slightly less than the length of the circular tube in the middle of the three-post insulator. After the three-post insulator is sleeved onto the snap-fit ​​part 22, due to the elasticity of polyurethane, the circular tube of the three-post insulator is pressed into the inside of the two axial limiting plates 222, so that the inner surface of the circular tube in the middle of the three-post insulator contacts the arc surface of the radial limiting plate 221, further limiting the position of the three-post insulator.

[0037] In one embodiment provided in this application, reference is made to Figure 4 The top surfaces of the two axial limiting plates 222 are machined with bevels on opposite sides to facilitate the clamping of the round tube in the middle of the three-post insulator m.

[0038] In one embodiment provided in this application, reference is made to Figure 4 The bottom surface of the radial limiting plate 221 and the outer surface of the axial limiting plate 222 are provided with interconnected limiting grooves 223, which are adapted to the support base 21. When the snap-fit ​​22 is installed on the support base 21, the limiting groove 223 is used to fit onto the baffle 212 and the support plate 211 between the baffle 212, so that the snap-fit ​​22 is stably connected to the support base 21.

[0039] In one embodiment provided in this application, reference is made to Figure 1 The fixing device for the three-post insulator also includes a fixing mechanism 3, which further fixes the three-post insulator to the snap-fit ​​member 22.

[0040] The fixing mechanism 3 is located at one end of the limiting mechanism 2, and includes a fixing member 31. A connecting member 32 is provided on the fixing member 31, and a pressure member 33 is provided at the other end of the connecting member 32.

[0041] Specifically, the fastener 31 is configured as a clamp structure with an arc-shaped cross-section, and the inner surface of the fastener 31 is adapted to the surface of the circular tube in the middle of the three-post insulator m. When the fastener 31 is pressed against the surface of the circular tube, the fastener 31 is completely attached to the surface of the circular tube, so that the circular tube is clamped by the fastener 31.

[0042] Furthermore, the connector 32 is elongated and hinged in the middle to the top surface of the baffle 212. The two ends of the connector 32 are adapted to move up and down relative to the hinge point. When the end near the snap-fit ​​22 moves upward, the three-post insulator m can be removed from the snap-fit ​​22.

[0043] The hinge described in the text can be any structure that can satisfy the hinge connection relationship.

[0044] Furthermore, the pressure-applying component 33 includes a cylindrical spring 331, the bottom surface of which is welded to the top plate 111. A support plate 332 is welded to the top surface of the cylindrical spring 331. An anti-slip groove is provided on the top surface of the support plate 332. The support plate 332 is adapted to the connecting component 32. The connecting component 32 is placed in the anti-slip groove to prevent the connecting component 32 from slipping off the support plate 332.

[0045] It should be noted that the free height of the cylindrical spring 331 is more than 1.5 times the height of the axial limiting plate 222, so that after the cylindrical tube of the three-post insulator m is installed on the snap-fit ​​22 and contacts the fixing member 31, the cylindrical spring 331 provides a reverse force to the fixing member 31.

[0046] In one embodiment provided in this application (not shown in the figure), the pressure member 33 can be a torsion spring. The torsion spring is installed at the hinge between the connector 32 and the baffle 212 so that the initial position of the torsion spring installation keeps the fixing member 31 close to the radial limiting plate 221. When installing or removing the three-post insulator m, it is only necessary to lift the fixing member 31.

[0047] When spraying the three-post insulator m, refer to Figure 2 :

[0048] First, tighten the bolts symmetrically attached to the two support legs 11 onto the rotating base n;

[0049] The end of the three-post insulator m without the fixing part 31 is put onto the snap-fit ​​part 22. The fixing part 31 is lifted. After the three-post insulator m is snapped into place on the snap-fit ​​part 22, the fixing part 31 is lowered so that the fixing part 31 overlaps the surface of the round tube.

[0050] Next, align the connector 32 with the anti-slip groove on the support plate 332, then place both ends of the support plate 211 on the top plate 111, and lock the support plate 211 and the top plate 111 with bolts; the fixing member 31 is subjected to the reverse force of the cylindrical spring 331, which clamps the round tube of the three-post insulator m, so that the three-post insulator m is stably fixed on the device for surface treatment.

[0051] Finally, it should be noted that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways as long as they do not depart from the scope of this utility model.

Claims

1. A fixing device for a three-post insulator, characterized in that: include, Support mechanism (1), the support mechanism (1) includes two support legs (11) spaced apart; The limiting mechanism (2) includes a support base (21), which is disposed on the top surface of the two support feet (11) and has a snap-fit ​​component (22) on it.

2. The fixing device for a three-post insulator as described in claim 1, characterized in that: The two support feet (11) are symmetrically arranged and are in the shape of an inverted trapezoid.

3. The fixing device for a three-post insulator as described in claim 1 or 2, characterized in that: The support foot (11) includes a top plate (111) and a bottom plate (112), and a side plate (113) is provided between the top plate (111) and the bottom plate (112). The top plate (111) and the bottom plate (112) are arranged parallel to each other.

4. The fixing device for a three-post insulator as described in claim 3, characterized in that: The support base (21) includes a support plate (211), and baffles (212) are provided on the top surface of the support plate (211) near both ends.

5. The fixing device for a three-post insulator as described in claim 4, characterized in that: The snap-fit ​​component (22) includes a radial limiting plate (221), the top surface of which is arc-shaped, and axial limiting plates (222) are provided at both ends of the radial limiting plate (221).

6. The fixing device for a three-post insulator as described in claim 5, characterized in that: The bottom surface of the radial limiting plate (221) and the outer surface of the axial limiting plate (222) are provided with a connecting limiting groove (223), which is adapted to the support base (21).

7. The fixing device for a three-post insulator as described in any one of claims 4 to 6, characterized in that: It also includes a fixing mechanism (3), which is located at one end of the limiting mechanism (2) and includes a fixing member (31). A connecting member (32) is provided on the fixing member (31), and a pressure member (33) is provided at the other end of the connecting member (32).

8. The fixing device for a three-post insulator as described in claim 7, characterized in that: The fastener (31) has an arc-shaped cross-section, and the inner surface of the fastener (31) is adapted to the surface of the circular tube in the middle of the three-post insulator (m).

9. The fixing device for a three-post insulator as described in claim 8, characterized in that: The connector (32) is long and narrow, with its middle section hinged to the top surface of the baffle (212), and its two ends adapted to move up and down relative to the hinge point.

10. The fixing device for a three-post insulator as described in claim 9, characterized in that: The pressure-applying component (33) includes a cylindrical spring (331), the bottom surface of which is disposed on the top plate (111), and a support plate (332) is disposed on the top surface of the cylindrical spring (331), which is adapted to the connecting component (32).

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