Search

CN-224232902-U - Cover plate assembly and filter

CN224232902UCN 224232902 UCN224232902 UCN 224232902UCN-224232902-U

Abstract

The application relates to the technical field of communication and provides a cover plate assembly and a filter, wherein the cover plate assembly comprises a cover plate, a supporting piece, a compensating piece and a rotation stopping structure, the cover plate comprises a deformation part and a fixing part, the deformation part is provided with a first threaded hole extending along a first direction, the supporting piece is fixedly connected to the fixing part and is provided with a connecting hole extending through along the first direction, the compensating piece is arranged between the supporting piece and the deformation part, the rotation stopping structure is used for preventing the compensating piece from rotating around the first direction relative to the deformation part, the compensating piece can move towards the supporting piece relative to the deformation part in the first direction, the compensating piece is provided with a second threaded hole extending through along the first direction, the second threaded hole is aligned with the first threaded hole, and a first end of the adjusting piece is rotatably connected to the connecting hole and a second end of the adjusting piece is at least connected in the second threaded hole. The cover plate assembly solves the problem that the downward displacement of the deformation part is limited by arranging the compensation part between the support part and the deformation part.

Inventors

  • ZHAO XIN
  • CHEN YUHAN

Assignees

  • 大富科技(安徽)股份有限公司

Dates

Publication Date
20260512
Application Date
20250610

Claims (10)

  1. 1. A cover plate assembly, comprising: The cover plate comprises a deformation part and a fixing part arranged on the periphery of the deformation part, wherein the deformation part is provided with a first threaded hole extending along a first direction; A support fixedly connected to the fixing portion and spaced apart from the deformation portion in the first direction, the support having a connection hole extending therethrough in the first direction; The compensation piece is positioned between the support piece and the deformation part, a rotation stopping structure is arranged between the compensation piece and the deformation part and used for preventing the compensation piece from rotating around the first direction relative to the deformation part, the compensation piece can move towards the support piece relative to the deformation part in the first direction, and the compensation piece is provided with a second threaded hole which penetrates and extends along the first direction, and the second threaded hole is aligned with the first threaded hole; The first end of the adjusting piece is rotatably connected with the connecting hole, and the second end of the adjusting piece is at least connected with the second threaded hole in a threaded mode.
  2. 2. The cover plate assembly of claim 1, wherein the rotation stopping structure comprises a rotation stopping protrusion and a rotation stopping groove matched with the rotation stopping protrusion, wherein one of the compensation piece and the deformation part is provided with the rotation stopping protrusion, and the other of the compensation piece and the deformation part is provided with the rotation stopping groove.
  3. 3. The cover plate assembly of claim 2, wherein the rotation stopping protrusions are arranged in a plurality at intervals along the circumferential direction of the first threaded hole, and the number of the rotation stopping grooves is greater than or equal to the number of the rotation stopping protrusions.
  4. 4. The cover assembly of claim 1, wherein the deformation comprises a deformation body and a boss provided on the deformation body, the first threaded hole being provided on the boss.
  5. 5. The decking assembly defined in any one of claims 1-4 wherein the bracing member includes a bracing wall at an end of the annular wall remote from the deformation, the attachment aperture being provided in the bracing wall, an annular wall at an end of the annular wall adjacent the deformation, and a securing flange fixedly attached to the securing portion.
  6. 6. The cover assembly of claim 5, wherein the securing flange is folded outwardly of the annular wall.
  7. 7. The cover assembly of claim 5, wherein the securing portion has a locating step thereon, and the securing flange is fixedly coupled to the locating step.
  8. 8. The cover plate assembly of any one of claims 1-4, wherein the adjustment member comprises an adjustment body, and a first limit portion and a second limit portion provided on the adjustment body, the first limit portion, the second limit portion, and the adjustment body are integrally formed, the first limit portion is located on a side of the support member facing away from the deformation portion, and the second limit portion is located on a side of the support member facing toward the deformation portion.
  9. 9. The cover assembly of claim 8, wherein the first stop portion is crimped from an end of the adjustment body remote from the deformation portion.
  10. 10. A filter comprising a cavity, a resonant member and a cover assembly as claimed in any one of claims 1 to 9, the cover assembly being secured to the cavity and enclosing a resonant cavity with the cavity, the resonant member being within the resonant cavity.

Description

Cover plate assembly and filter Technical Field The application relates to the technical field of communication, in particular to a cover plate assembly and a filter. Background In the related art, referring to fig. 1, the cover assembly 10 includes a cover 11, a supporting member 12 and an adjusting member 13, wherein the cover 11 includes a deformable portion 112 capable of being deformed under force and a fixing portion 111 disposed on an outer periphery of the deformable portion 112, a first threaded hole 11221 is formed in the deformable portion 112, the supporting member 12 is fixedly connected to the fixing portion 111 and is spaced from the deformable portion 112, a connecting hole 1211 is formed in the supporting member 12, a first end of the adjusting member 13 is in threaded connection with the first threaded hole 11221, and a second end of the adjusting member 13 is rotatably connected to the connecting hole 1211. The adjustment of the resonance frequency is achieved by rotating the adjustment member 13 to drive the deformation portion 112 to move in the thickness direction of the cover plate 11. In order to reduce the weight of the filter, the thickness of the cover plate is usually designed to be smaller, which results in insufficient length of the threaded hole on the deformation portion, and when the adjusting member is rotated to adjust the resonant frequency, the downward displacement amount of the deformation portion is limited, which results in a smaller adjustment range of the resonant frequency. Disclosure of utility model In view of the above, the embodiment of the application provides a cover plate assembly and a filter to solve the problem that the downward displacement of the deformation portion is limited. A first aspect of the present application proposes a cover plate assembly comprising: The cover plate comprises a deformation part and a fixing part arranged on the periphery of the deformation part, wherein the deformation part is provided with a first threaded hole extending along a first direction; A support fixedly connected to the fixing portion and spaced apart from the deformation portion in the first direction, the support having a connection hole extending therethrough in the first direction; The compensation piece is positioned between the support piece and the deformation part, a rotation stopping structure is arranged between the compensation piece and the deformation part and used for preventing the compensation piece from rotating around the first direction relative to the deformation part, the compensation piece can move towards the support piece relative to the deformation part in the first direction, and the compensation piece is provided with a second threaded hole which penetrates and extends along the first direction, and the second threaded hole is aligned with the first threaded hole; The first end of the adjusting piece is rotatably connected with the connecting hole, and the second end of the adjusting piece is at least connected with the second threaded hole in a threaded mode. The cover plate assembly has the beneficial effects that when the adjusting piece is rotated positively, the adjusting piece is connected with the second threaded hole on the compensation piece and the first threaded hole on the deformation part in a threaded manner, so that the deformation part of the cover plate is close to the supporting piece, namely, the deformation part moves upwards. The rotation stopping structure is arranged between the compensation piece and the deformation part, so that the compensation piece and the deformation part cannot rotate relatively, and the compensation piece can move towards the support piece relative to the deformation part in the first direction, so that even if the thread starting angles of the first threaded hole and the second threaded hole are not matched, the situation of seizure cannot occur. When the adjusting piece is rotated reversely, the deformation part moves away from the supporting piece, namely the deformation part moves downwards, and when the adjusting piece is separated from the first threaded hole, the adjusting piece is still in threaded connection with the second threaded hole, at the moment, the adjusting piece is rotated reversely continuously, and the compensation piece and the deformation part do not rotate relatively due to the rotation stopping structure arranged between the compensation piece and the deformation part, so that the compensation piece can push the deformation part in the process of moving downwards continuously, and the deformation part is pushed by the compensation piece, so that the deformation part is kept away from the supporting piece, namely the deformation part moves downwards continuously, and the downward displacement of the deformation part can be increased. Therefore, the scheme solves the problem that the downward displacement of the deformation part is limited, and the adjusting range o