Insulator with buffer structure

Abstract

The present invention discloses an insulator with a buffer structure, including a mounting hardware and an insulator body, a mounting cavity is provided at the end of the insulator body, a limiting pressure cover is arranged at the end of the insulator body, the limiting pressure cover is fixed on the insulator body by a screw, a column is integrally formed on the back of the mounting hardware, an arc-shaped buffer spring is arranged on the inner wall of the mounting cavity, a circular hole is arranged on the limiting pressure cover, a limiting convex ring with a diameter larger than the diameter of the circular hole is integrally formed on the middle of the column, a limiting pin hole is arranged on the outer end of the column, a plug-in pin is fixed on the outer wall of the insulator body by a metal chain, nuts are threadedly connected at both ends of the plug-in pin, and a buffer spring is fixed between the column and the bottom wall of the mounting cavity. The present invention has a reasonable structural arrangement, has buffering performance in the telescopic direction and the lateral direction, is conducive to buffering when the insulator body is subjected to external force, is conducive to preventing falling off, improves the safety and reliability of use, has strong applicability and good practicality.

Description

Technical Field

[0001] The invention belongs to the technical field of electric power, and in particular relates to an insulator with a buffer structure. Background Art

[0002] In the power system, insulators are a common component that runs through every link of power transmission and transformation. Insulators can be divided into glass, ceramic and synthetic insulators according to the insulating material. Insulators are connected to hardware by gluing, filling or crimping. Although they can meet the general usage requirements, in actual use, when the insulator is subjected to external force, it is easy to generate instantaneous large impact force, which will cause the risk of insulators and hardware slipping, so the applicability and practicality are limited. Summary of the invention

[0003] The object of the present invention is to provide an insulator with a buffer structure which has a reasonable structural arrangement and strong applicability.

[0004] The technical solution to achieve the purpose of the present invention is an insulator with a buffer structure, comprising a mounting hardware and an insulator body, wherein an installation cavity is provided at the end of the insulator body, a limit gland is provided at the end of the insulator body, and the limit gland is fixed to the insulator body by a screw, characterized in that: a column is integrally formed on the back of the mounting hardware, and an arc-shaped buffer spring is provided on the inner wall of the mounting cavity;

[0005] The limiting gland is provided with a circular hole, the middle part of the column is integrally formed with a limiting convex ring with a diameter larger than the circular hole, and the outer end of the column is provided with a limiting pin hole;

[0006] An insertion pin rod is fixed on the outer wall of the insulator body by a metal chain, nuts are threadedly connected at both ends of the insertion pin rod, the distance between the limiting convex ring and the insertion pin rod is greater than the thickness of the limiting pressure cover, and a buffer spring is fixed between the column rod and the bottom wall of the installation cavity.

[0007] Further preferably, an inverted V-shaped convex ring is fixed on the inner wall of the installation cavity;

[0008] A cavity is provided in the column rod, a movable rod is provided inside the cavity, and a pressure spring is provided between the bottom end of the movable rod and the bottom wall of the cavity;

[0009] An upwardly inclined locking groove is provided on the side wall of the column rod, and an inclined locking protrusion is connected to the outer wall of the movable rod through a rotating shaft rod, and the inclined locking protrusion is located in the locking groove;

[0010] The movable rod moves upward under the action of the pressure spring, so that the inclined locking protrusion extends outward from the locking groove and is in the space between the inverted V-shaped protruding ring and the bottom wall of the installation cavity.

[0011] Further preferably, an operation slot hole communicating with the cavity is provided on the top side wall of the column rod, a C-shaped tilting rod is provided in the operation slot hole, and the middle part of the C-shaped tilting rod is connected to the operation slot hole through a rotating shaft rod;

[0012] The outer end of the C-shaped tilting rod extends out of the outer side of the column rod and the inner end of the C-shaped tilting rod presses against the top end of the movable rod;

[0013] When the column is removed, the outer end of the C-shaped tilting rod is pushed upward, so that the inner end of the C-shaped tilting rod drives the movable rod to move downward, and the movable rod drives the inward retraction of the tilt locking protrusion into the locking groove, so that the tilt locking protrusion is separated from the inverted V-shaped convex ring.

[0014] Further preferably, an annular inner groove is formed on the inner wall of the limit gland, and an annular protrusion is integrally formed on the outer wall of the insulator body;

[0015] When the limiting gland is tightened and fixed by the screw, the annular protrusion is inserted into the annular inner groove.

[0016] Further preferably, an insulating rubber buffer layer is adhered and fixed to the inner wall of the limiting gland and the inner wall of the circular hole.

[0017] It is further preferred that: the number of the inverted V-shaped convex rings is one or two, and the two inverted V-shaped convex rings are arranged in parallel.

[0018] The present invention has positive effects: the structure of the present invention is reasonably arranged, and a limited position gland is arranged, and a buffer spring and an arc-shaped buffer spring are matched, so that the present invention has buffering performance in the telescopic direction and the side direction, which is conducive to buffering when the insulator body is subjected to external force, and ensures stable use;

[0019] At the same time, it is also provided with a metal chain and a card pin rod to achieve double connection, which is beneficial to prevent falling off, improve the safety and reliability of use, and has strong applicability and good practicality;

[0020] At the same time, it is also provided with an inverted V-shaped convex ring to cooperate with the tilted locking convex block. After installation, under the action of the pressure spring, the tilted locking convex block extends into between the inverted V-shaped convex ring and the bottom wall of the installation cavity, thereby not affecting the normal buffering performance of its buffer spring. It can cooperate with the inverted V-shaped convex ring through the tilted locking convex block. At the same time, when disassembling, the movable rod can be controlled by the C-shaped tilt rod, so that the tilted locking convex block is retracted into the column rod, which is beneficial to prevent falling off and ensure reliability of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments and in conjunction with the accompanying drawings, wherein:

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 It is a schematic diagram of the specific structure of the limiting gland in the present invention;

[0024] Figure 3 It is a schematic diagram of the specific structure of the C-shaped tilting rod in the present invention.

[0025] Figure numerals: mounting hardware 1, insulator body 2, mounting cavity 3, limiting pressure cover 4, screw 5, column 6, arc-shaped buffer spring 7, round hole 8, limiting convex ring 9, metal chain 10, plug-in pin rod 11, nut 12, buffer spring 13, inverted V-shaped convex ring 14, cavity 15, movable rod 16, pressure spring 17, locking groove 18, inclined locking protrusion 19, operating slot 20, C-shaped tilting rod 21, rotating shaft 22, annular inner groove 23, annular protrusion 24. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0027] Example

[0028] See Figures 1 to 3 As shown, an insulator with a buffer structure includes a mounting hardware 1 and an insulator body 2, a mounting cavity 3 is opened at the end of the insulator body, a limiting pressure cover 4 is arranged at the end of the insulator body, and in order to improve the insulation buffering performance during use, an insulating rubber buffer pad layer is glued and fixed on the inner wall of the limiting pressure cover and the inner wall of the circular hole.

[0029] And in actual application, the limiting pressure cover is fixed to the insulator body by a screw rod 5, a column rod 6 is integrally formed on the back of the mounting hardware, an arc-shaped buffer spring sheet 7 is arranged on the inner wall of the mounting cavity, a circular hole 8 is arranged on the limiting pressure cover, a limiting convex ring 9 with a diameter larger than the diameter of the circular hole is integrally formed in the middle part of the column rod, a limiting pin hole 25 is provided at the outer end of the column rod, a plug-in pin rod 11 is fixed to the outer wall of the insulator body by a metal chain 10, nuts 12 are threadedly connected at both ends of the plug-in pin rod, the distance between the limiting convex ring and the plug-in pin rod is larger than the thickness of the limiting pressure cover, and a buffer spring 13 is fixed between the column rod and the bottom wall of the mounting cavity.

[0030] In this embodiment, a limited pressure cover is provided, which cooperates with a buffer spring and an arc-shaped buffer spring sheet, so that it has buffering performance in the telescopic direction and the lateral direction, which is beneficial to buffering when the insulator body is subjected to external force, ensuring smooth use. At the same time, it is also provided with a metal chain to cooperate with a card pin rod, so as to realize double connection, which is beneficial to prevent falling off.

[0031] An inverted V-shaped convex ring 14 is fixed on the inner wall of the installation cavity. In actual application, the inverted V-shaped convex ring is one or two, and the two inverted V-shaped convex rings are arranged in parallel. A cavity 15 is arranged in the column rod, and a movable rod 16 is arranged inside the cavity. A pressure spring 17 is arranged between the bottom end of the movable rod and the bottom wall of the cavity. An upwardly inclined locking groove 18 is opened on the side wall of the column rod. An inclined locking protrusion 19 is connected to the outer wall of the movable rod through a rotating shaft. During use, the inclined locking protrusion is in the locking groove. The movable rod moves upward under the action of the pressure spring, so that the inclined locking protrusion extends out of the locking groove and is in the space between the inverted V-shaped convex ring and the bottom wall of the installation cavity.

[0032] At the same time, it is also provided with an inverted V-shaped convex ring to cooperate with the tilted locking convex block. After installation, under the action of the pressure spring, the tilted locking convex block extends into between the inverted V-shaped convex ring and the bottom wall of the installation cavity, thereby not affecting the normal buffering performance of its buffer spring. It can cooperate with the inverted V-shaped convex ring through the tilted locking convex block. At the same time, when disassembling, the movable rod can be controlled by the C-shaped tilt rod, so that the tilted locking convex block is retracted into the column rod, which is conducive to preventing it from falling off.

[0033] An operating slot 20 communicating with the cavity is provided on the top side wall of the column rod, and a C-shaped tilting rod 21 is arranged in the operating slot hole. The middle part of the C-shaped tilting rod is connected to the operating slot hole through a rotating shaft rod 22. The outer end of the C-shaped tilting rod extends out of the outside of the column rod and the inner end of the C-shaped tilting rod is pressed against the top of the movable rod. When the column rod is removed, the outer end of the C-shaped tilting rod is pushed upward, so that the inner end of the C-shaped tilting rod drives the movable rod to move downward, and the movable rod drives the inward retraction of the tilt locking protrusion into the locking slot, so that the tilt locking protrusion is separated from the inverted V-shaped convex ring.

[0034] In actual application, in order to improve the stability and reliability of fixation, an annular inner groove 23 is provided on the inner wall of the limit gland, and an annular protrusion 24 is integrally formed on the outer wall of the insulator body. When the limit gland is tightened and fixed by a screw, the annular protrusion is inserted into the annular inner groove. During the installation process, when the limit gland is fixed by a screw, when the screw is locked, the limit gland will be slightly deformed, so that the annular protrusion is inserted into the annular inner groove.

[0035] The structure of the invention is reasonable, the use safety and reliability are improved, the applicability is strong and the practicality is good, and the reliability of use is guaranteed.

[0036] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components recorded in the specification and the drawings can also be directly processed according to the existing technical common sense. At the same time, the connection method of each component adopts the mature conventional means in the prior art, and the machinery, parts and equipment all adopt the conventional models in the prior art, so no specific description will be given here.

[0037] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. However, these obvious changes or modifications derived from the essential spirit of the present invention still fall within the protection scope of the present invention.

[0038] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components recorded in the specification can also be directly processed according to existing technical common sense. At the same time, the connection method of each component adopts the mature conventional means in the prior art, and the machinery, parts and equipment all adopt the conventional models in the prior art, so no specific description will be given here.

[0039] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. However, these obvious changes or modifications derived from the essential spirit of the present invention still fall within the protection scope of the present invention.

Claims

1. An insulator with a buffer structure, comprising a mounting hardware and an insulator body, wherein a mounting cavity is provided at the end of the insulator body, a limit gland is provided at the end of the insulator body, and the limit gland is fixed to the insulator body by a screw, characterized in that: A column rod is integrally formed on the back of the installation hardware, and an arc-shaped buffer spring is arranged on the inner wall of the installation cavity; The limiting gland is provided with a circular hole, the middle part of the column is integrally formed with a limiting convex ring with a diameter larger than the circular hole, and the outer end of the column is provided with a limiting pin hole; An insertion pin rod is fixed on the outer wall of the insulator body by a metal chain, nuts are threadedly connected at both ends of the insertion pin rod, the distance between the limiting convex ring and the insertion pin rod is greater than the thickness of the limiting pressure cover, and a buffer spring is fixed between the column rod and the bottom wall of the installation cavity.

2. The insulator with a buffer structure according to claim 1, characterized in that: An inverted V-shaped convex ring is fixed on the inner wall of the installation cavity; A cavity is provided in the column rod, a movable rod is provided inside the cavity, and a pressure spring is provided between the bottom end of the movable rod and the bottom wall of the cavity; An upwardly inclined locking groove is provided on the side wall of the column rod, and an inclined locking protrusion is connected to the outer wall of the movable rod through a rotating shaft rod, and the inclined locking protrusion is located in the locking groove; The movable rod moves upward under the action of the pressure spring, so that the inclined locking protrusion extends outward from the locking groove and is in the space between the inverted V-shaped protruding ring and the bottom wall of the installation cavity.

3. The insulator with a buffer structure according to claim 2, characterized in that: An operation slot hole communicating with the cavity is provided on the top side wall of the column rod, a C-shaped tilting rod is provided in the operation slot hole, and the middle part of the C-shaped tilting rod is connected to the operation slot hole through a rotating shaft rod; The outer end of the C-shaped tilting rod extends out of the outer side of the column rod and the inner end of the C-shaped tilting rod presses against the top end of the movable rod; When the column is removed, the outer end of the C-shaped tilting rod is pushed upward, so that the inner end of the C-shaped tilting rod drives the movable rod to move downward, and the movable rod drives the inward retraction of the tilt locking protrusion into the locking groove, so that the tilt locking protrusion is separated from the inverted V-shaped convex ring.

4. The insulator with a buffer structure according to claim 1, characterized in that: An annular inner groove is formed on the inner wall of the limit gland, and an annular protrusion is integrally formed on the outer wall of the insulator body; When the limiting gland is tightened and fixed by the screw, the annular protrusion is inserted into the annular inner groove.

5. The insulator with a buffer structure according to claim 4, characterized in that: An insulating rubber buffer layer is adhered and fixed to the inner wall of the limiting gland and the inner wall of the circular hole.

6. The insulator with a buffer structure according to claim 2, characterized in that: The number of the inverted V-shaped convex rings is one or two, and the two inverted V-shaped convex rings are arranged in parallel.

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