Search

CN-122025312-A - Lightweight high-strength column porcelain insulator

CN122025312ACN 122025312 ACN122025312 ACN 122025312ACN-122025312-A

Abstract

The invention provides a lightweight high-strength column porcelain insulator, which relates to the technical field of insulators and comprises a main body part and a connecting part, wherein at least one end of the main body part is provided with a matching cavity, one end of the connecting part is internally supported in the matching cavity, an elastic part is arranged between the internal supporting part of the connecting part and the side wall of the matching cavity, and the other end of the connecting part is connected with the outside. The lightweight high-strength column porcelain insulator formed based on the structure can compensate the difference of cold and hot expansion of the connecting piece and the main body piece due to the influence of temperature change, humidity fluctuation and the like in long-term operation, reduces the influence of peripheral wire movement on the connecting part of the connecting piece and the main body piece, and ensures that the connecting piece has longer service life and higher safety.

Inventors

  • CHEN YAQING
  • PAN ZHAO
  • CHEN SHUAI
  • YANG CHUNCHANG
  • LIN JINGKAI

Assignees

  • 保定旺鑫电瓷制造有限公司

Dates

Publication Date
20260512
Application Date
20260323

Claims (10)

  1. 1. A lightweight high strength column porcelain insulator, comprising: a main body piece (1), wherein at least one end of the main body piece (1) is provided with a matching cavity; The connecting piece (2), one end of connecting piece (2) prop in inside the cooperation chamber, and be provided with elastic component (201) between the interior portion of propping of connecting piece (2) and the lateral wall in cooperation chamber, the other end and the peripheral hardware of connecting piece (2) are connected.
  2. 2. The lightweight high-strength column porcelain insulator according to claim 1, wherein the connecting piece (2) comprises a connecting column (203), an expansion piece (202) and an elastic piece (201) which are sequentially arranged from inside to outside, an expansion matching part is arranged between the connecting column (203) and the expansion piece (202), and when the connecting column (203) and the expansion piece (202) move towards each other, the expansion piece (202) expands outwards in the radial direction and forms extrusion fastening with the inner side of the elastic piece (201); -a first threaded engagement is formed between the connection post (203) and the expansion member (202); The top end of the connecting column (203) extends to the outside of the matching cavity and is connected with a first nut piece (204), and a second threaded matching is formed between the first nut piece (204) and the connecting column (203); The first thread is engaged in a direction opposite to the second thread.
  3. 3. The lightweight high strength column porcelain insulator of claim 2 wherein the expansion fitting is a tapered or beveled fit.
  4. 4. The lightweight high-strength column porcelain insulator of claim 2, wherein the expansion member (202) and the elastic member (201) are annular.
  5. 5. The lightweight high-strength column porcelain insulator as set forth in claim 2, wherein the connecting column (203) comprises a first thread section (203 a), an inner supporting cone (203 b) and a second thread section (203 c) which are integrally arranged in sequence from one end to the other end; -a first threaded engagement is formed between the first threaded section (203 a) and the expansion member (202); the inner supporting cone part (203 b) is in a frustum shape, and one end close to the first thread section (203 a) is a small end; The second thread segment (203 c) forms a second threaded engagement with the first nut member (204).
  6. 6. The lightweight high-strength column porcelain insulator according to claim 5, wherein the expansion piece (202) comprises a first tube part (202 a) and a second tube part (202 c) which are integrally arranged, an inner thread part (202 b) is arranged on the inner side of the first tube part (202 a), an inner cone part (202 f) is arranged on the inner side of the second tube part (202 c), an expansion fit part is formed by the inner cone part (202 f) and the inner support cone part (203 b), and at least one expansion joint (202 e) is arranged on the side surface of the second tube part (202 c); the bottom of the first barrel part (202 a) is fixedly provided with a positioning block (202 g), and the inner bottom of the matching cavity is provided with a positioning groove (102) corresponding to the positioning block (202 g).
  7. 7. The lightweight high strength column porcelain insulator according to claim 6, wherein an anti-slip member (202 d) is fixedly provided on the outer side of the second cylindrical portion (202 c).
  8. 8. The lightweight high-strength column porcelain insulator as set forth in claim 2, wherein the elastic member (201) comprises a plurality of metal bodies (201 b) which are arc-shaped and are matched to form a circular body, and rubber bodies (201 a) are arranged on the outer sides of the circular body formed by the metal bodies (201 b).
  9. 9. The lightweight high strength porcelain insulator of claim 8 wherein said metal body (201 b) comprises a large arcuate member (201 b 1) and two small arcuate members (201 b 2), said large arcuate member (201 b 1) having a center angle of 120 ° -180 ° and said small arcuate member (201 b 2) having a center angle of 60 ° -120 °.
  10. 10. The lightweight high-strength column porcelain insulator is characterized in that the main body piece (1) comprises a porcelain base body (106), an umbrella skirt structure (105) is arranged on the outer side of the porcelain base body (106), the umbrella skirt structure (105) is a stepped structure formed by alternately distributing big umbrellas (105 a) and small umbrellas (105 b), and annular diversion trenches are arranged on the lower surfaces of the big umbrellas (105 a) and the small umbrellas (105 b); The surface of the umbrella skirt structure (105) is provided with a nano silicon dioxide-fluororesin composite coating; One end of the porcelain substrate (106) is provided with a connecting cavity (101), and the inner side of the connecting cavity (101) is provided with an annular groove (103) corresponding to the elastic piece (201); A boss (104) is fixedly arranged at one end of the porcelain substrate (106) and positioned at the outer side of a port of the connecting cavity (101), the boss (104) is annular, and a protective cover piece (206) made of metal is arranged at the outer side of the boss (104); A sealing piece (205) is arranged on the inner side of the boss (104), and the sealing piece (205) is annular; the device also comprises a restraint piece (3), wherein the restraint piece (3) is used for connecting the peripheral wire (a) with the connecting piece (2); The restraint piece (3) comprises a long restraint piece (301), wherein a long hole for accommodating the peripheral wire (a) is formed in the long restraint piece (301), a connecting frame (302) is fixedly connected to the bottom of the long restraint piece (301), a ring matching piece (303) is rotatably arranged between the connecting frame (302) and the long restraint piece (301), threads are formed in the inner side of the ring matching piece (303), and a first jack corresponding to a central hole of the ring matching piece (303) is formed in the bottom of the connecting frame (302); A second jack corresponding to the central hole of the ring matching piece (303) is arranged at the bottom of the long limiting piece (301), and the second jack is communicated with a long hole arranged on the long limiting piece (301).

Description

Lightweight high-strength column porcelain insulator Technical Field The invention relates to the technical field of insulators, in particular to a lightweight high-strength column porcelain insulator. Background The column porcelain insulator is used as a key insulating part in the power system and mainly bears the core functions of supporting conductors, isolating live bodies and grounding bodies, and the insulating performance and mechanical strength of the column porcelain insulator directly determine the operation safety and stability of the power system. The metal accessory and the porcelain matrix of the general column porcelain insulator are connected in a cement binding mode, and are affected by temperature change, humidity fluctuation and the like in long-term operation, a binding layer is easy to age and crack, and then the metal accessory and the porcelain body are separated, so that potential safety hazards are caused. Therefore, the development of lightweight high-strength column porcelain insulators is an urgent need in the field of power equipment. Disclosure of Invention Aiming at the defects of the prior art, the invention provides a lightweight high-strength column porcelain insulator, which solves the problems that the connection part of a metal accessory and a porcelain matrix is affected by temperature change, humidity fluctuation and the like, a cementing layer is easy to age and crack, and further the metal accessory is separated from the porcelain body, so that potential safety hazards are caused. In order to achieve the above purpose, the invention is realized by the following technical scheme: a lightweight high strength column porcelain insulator comprising: a main body member, at least one end of the main body member being provided with a mating cavity; The connecting piece, the one end of connecting piece prop in the cooperation intracavity portion, and be provided with the elastic component between the interior portion of propping of connecting piece and the lateral wall of cooperation chamber, the other end and the peripheral hardware of connecting piece are connected. Preferably, the connecting piece comprises a connecting column, an expansion piece and an elastic piece which are sequentially arranged from inside to outside, wherein an expansion matching part is arranged between the connecting column and the expansion piece, and when the connecting column and the expansion piece move in opposite directions, the expansion piece expands radially outwards and forms extrusion fastening with the inner side of the elastic piece; A first threaded fit is formed between the connecting column and the expansion piece; the top end of the connecting column extends to the outside of the matching cavity and is connected with a first nut piece, and a second thread matching is formed between the first nut piece and the connecting column; The first thread is engaged in a direction opposite to the second thread. Preferably, the expansion fit portion is conical or inclined. Preferably, the expansion piece and the elastic piece are annular. Preferably, the connecting column sequentially comprises a first thread section, an inner supporting cone part and a second thread section which are integrally arranged from one end to the other end; a first thread fit is formed between the first thread segment and the expansion piece; the inner supporting cone part is in a frustum shape, and one end, close to the first thread section, is a small end; the second thread segment and the first nut piece form second thread matching. Preferably, the expansion piece comprises a first cylinder part and a second cylinder part which are integrally arranged, wherein an internal thread part is arranged on the inner side of the first cylinder part, an internal cone part is arranged on the inner side of the second cylinder part, an expansion matching part is formed by the internal cone part and the internal support cone part, and at least one expansion joint is arranged on the side surface of the second cylinder part; the bottom of the first barrel part is fixedly provided with a positioning block, and a positioning groove corresponding to the positioning block is formed in the inner bottom of the matching cavity. Preferably, an anti-slip member is fixedly arranged on the outer side of the second cylinder part. Preferably, the elastic piece comprises a plurality of metal bodies which are arc-shaped and matched to form a circular body, and rubber bodies are arranged on the outer sides of the circular body formed by the metal bodies in a matched mode. Preferably, the metal body comprises a large arc-shaped piece and two small arc-shaped pieces, wherein the central angle corresponding to the large arc-shaped piece is 120-180 degrees, and the central angle corresponding to the small arc-shaped piece is 60-120 degrees. Preferably, the main body piece comprises a porcelain substrate, wherein an umbrella skirt structure is arran