Cover plate assembly and filter

Abstract

The utility model relates to the technical field of communication, and provides a cover plate assembly and a filter, and the cover plate assembly comprises a cover plate which comprises a deformation part and a fixed part, and the deformation part is provided with a first threaded hole extending in a first direction; the supporting piece is fixedly connected to the fixing part, and the supporting piece is provided with a connecting hole extending in the first direction in a penetrating mode; the compensation part is located between the supporting part and the deformation part, a rotation stopping structure is arranged between the compensation part and the deformation part, the rotation stopping structure is used for stopping the compensation part from rotating around the first direction relative to the deformation part, the compensation part can move towards the supporting part relative to the deformation part in the first direction, and the compensation part is provided with a second threaded hole extending in the first direction in a penetrating mode; the second threaded hole is aligned with the first threaded hole; the first end of the adjusting piece is rotatably connected to the connecting hole, and the second end of the adjusting piece is at least in threaded connection into the second threaded hole. According to the cover plate assembly, the compensation piece is arranged between the supporting piece and the deformation part, so that the problem that the downward displacement of the deformation part is limited is solved.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a cover plate assembly and filter. Background Technology

[0002] For related technologies, please refer to Figure 1 The cover plate assembly 10 includes a cover plate 11, a support member 12, and an adjusting member 13. The cover plate 11 includes a deformable portion 112 that can be deformed under force and a fixed portion 111 disposed on the outer periphery of the deformable portion 112. The deformable portion 112 is provided with a first threaded hole 11221. The support member 12 is fixedly connected to the fixed portion 111 and spaced apart from the deformable portion 112. The support member 12 is provided with a connecting hole 1211. The first end of the adjusting member 13 is threadedly connected to the first threaded hole 11221, and the second end of the adjusting member 13 is rotatably connected to the connecting hole 1211. By rotating the adjusting member 13, the deformable portion 112 is moved along the thickness direction of the cover plate 11, thereby achieving the adjustment of the resonant frequency.

[0003] To reduce the weight of the filter, the thickness of the cover plate is usually designed to be small, which results in insufficient length of the threaded hole on the deformable part. When adjusting the resonant frequency by rotating the adjustment component, the downward displacement of the deformable part is limited, resulting in a small adjustment range of the resonant frequency. Utility Model Content

[0004] In view of this, embodiments of this application provide a cover plate assembly and a filter to solve the problem of limited downward displacement of the deformable part.

[0005] The first aspect of this application provides a cover plate assembly, comprising:

[0006] A cover plate includes a deformable portion and a fixing portion disposed on the outer periphery of the deformable portion, the deformable portion having a first threaded hole extending in a first direction;

[0007] A support member is fixedly connected to the fixed part and is spaced apart from the deformable part in the first direction. The support member has a connecting hole that extends through the first direction.

[0008] A compensating member is located between the supporting member and the deformable part. An anti-rotation structure is provided between the compensating member and the deformable part. The anti-rotation structure is used to prevent the compensating member from rotating relative to the deformable part about the first direction. The compensating member can move relative to the deformable part toward the supporting member in the first direction. The compensating member has a second threaded hole extending through along the first direction. The second threaded hole is aligned with the first threaded hole.

[0009] An adjusting member, wherein a first end of the adjusting member is rotatably connected to the connecting hole, and a second end of the adjusting member is at least threadedly connected to the second threaded hole.

[0010] The beneficial effects of the cover plate assembly provided in this application embodiment are as follows: When the adjusting member is rotated in the forward direction, the adjusting member is simultaneously threadedly connected to the second threaded hole on the compensating member and the first threaded hole on the deformed part, so that the deformed part of the cover plate moves closer to the supporting member, that is, the deformed part moves upward. Since an anti-rotation structure is provided between the compensating member and the deformed part, the compensating member and the deformed part will not rotate relative to each other; moreover, the compensating member can move relative to the deformed part towards the supporting member in the first direction, so even if the thread starting angles of the first threaded hole and the second threaded hole do not match, there will be no seizing. When the adjusting member is rotated in the reverse direction, the deformed part will move away from the supporting member, that is, the deformed part moves downward; moreover, after the adjusting member disengages from the first threaded hole, the adjusting member is still threadedly connected to the second threaded hole. At this time, if the adjusting member is rotated in the reverse direction again, since an anti-rotation structure is provided between the compensating member and the deformed part, the compensating member and the deformed part will not rotate relative to each other. Therefore, during the continued downward movement, the compensating member can press against the deformed part. By pressing against the deformed part, the deformed part continues to move away from the supporting member, that is, the deformed part continues to move downward, thus increasing the downward displacement of the deformed part. Therefore, the above solution solves the problem of limited downward displacement of the deformed part and increases the adjustment range of the resonant frequency.

[0011] In some embodiments, the anti-rotation structure includes an anti-rotation protrusion and an anti-rotation groove that mates with the anti-rotation protrusion, one of the compensation member and the deformable portion is provided with the anti-rotation protrusion, and the other of the compensation member and the deformable portion is provided with the anti-rotation groove.

[0012] In some embodiments, a plurality of anti-rotation protrusions are arranged at circumferential intervals along the first threaded hole, and the number of anti-rotation grooves is greater than or equal to the number of anti-rotation protrusions.

[0013] In some embodiments, the deformable portion includes a deformable body and a boss disposed on the deformable body, wherein the first threaded hole is disposed on the boss.

[0014] In some embodiments, the support member includes a support wall, an annular wall, and a fixed flange. The support wall is located at the end of the annular wall away from the deformable part, and the connecting hole is provided on the support wall. The fixed flange is located at the end of the annular wall close to the deformable part, and the fixed flange is fixedly connected to the fixed part.

[0015] In some embodiments, the fixed flange bends outward toward the annular wall.

[0016] In some embodiments, the fixing part is provided with a positioning step, and the fixing flange is fixedly connected to the positioning step.

[0017] In some embodiments, the adjusting member includes an adjusting body and a first limiting part and a second limiting part disposed on the adjusting body, wherein the first limiting part, the second limiting part, and the adjusting body are an integral structure; the first limiting part is located on the side of the supporting member away from the deformable part, and the second limiting part is located on the side of the supporting member facing the deformable part.

[0018] In some embodiments, the first limiting portion is formed by pressing the end of the adjusting body away from the deformable portion.

[0019] A second aspect of this application provides a filter comprising a cavity, a resonant element, and a cover plate assembly as described in the first aspect, the cover plate assembly being fixed to the cavity and forming a resonant cavity with the cavity, the resonant element being located within the resonant cavity.

[0020] The filter employs any one or more embodiments of the above-described cover plate assembly, and thus has the beneficial effects of the above-described embodiments, which will not be described in detail here.

[0021] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a structural schematic diagram of the cover plate assembly provided in the related technology;

[0024] Figure 2 This is a cross-sectional view of a cover plate assembly provided in some embodiments of this application;

[0025] Figure 3 This is an exploded view of a cover plate assembly provided in some embodiments of this application;

[0026] Figure 4 This is a cross-sectional view of a cover plate assembly provided in other embodiments of this application;

[0027] Figure 5 yes Figure 2 A schematic diagram of the structure before the first limiting part is pressed together;

[0028] Figure 6This is a cross-sectional view of a filter provided in some embodiments of this application.

[0029] The markings in the diagram mean:

[0030] 100. Filter;

[0031] 10. Cover plate assembly;

[0032] 11. Cover plate; 111. Fixing part; 1111. Positioning step; 112. Deformable part; 1121. Deformable body; 1122. Boss; 11221. First threaded hole;

[0033] 12. Support component; 121. Support wall; 1211. Connecting hole; 122. Ring wall; 123. Fixing flange;

[0034] 13. Adjusting component; 131. First limiting part; 132. Second limiting part; 133. Adjusting main body; 1331. Operating part;

[0035] 14. Compensating component; 141. Second threaded hole;

[0036] 15. Anti-rotation structure; 151. Anti-rotation groove; 152. Anti-rotation protrusion;

[0037] 20. Cavity;

[0038] 30. Resonant components;

[0039] 40. Resonant cavity. Detailed Implementation

[0040] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0042] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0043] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0044] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0045] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0046] In the description of the embodiments of this application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0047] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0048] An embodiment of the first aspect of this application provides a cover plate assembly. Please refer to... Figure 2 and Figure 6 The cover plate assembly 10 includes a cover plate 11, a support member 12, a compensation member 14, and an adjustment member 13.

[0049] The cover plate 11 includes a deformable portion 112 and a fixing portion 111 disposed on the outer periphery of the deformable portion 112. The deformable portion 112 has a first threaded hole 11221 extending along a first direction X.

[0050] The fixing part 111 is used to connect and fix to the cavity 20 of the filter 100; the deformable part 112 can be deformed along the first direction X under force to move closer to or away from the resonant cavity 40, thereby adjusting the resonant frequency.

[0051] It is understood that the cover plate 11 can be a one-piece single-layer cover plate, that is, the fixing part 111 and the deformable part 112 are integrally machined to improve the assembly convenience and consistency of the cover plate 11. Alternatively, the cover plate 11 can be a split single-layer cover plate, that is, the deformable part 112 is separately connected to the inner peripheral surface of the fixing part 111. Alternatively, the cover plate 11 can be a double-layer cover plate, the cover plate 11 includes a first plate and a second plate, the first plate includes the fixing part 111, the second plate is stacked on the side of the first plate away from the support member 12, and the second plate includes the deformable part 112.

[0052] Wherein, the first direction X is the thickness direction of the cover plate 11.

[0053] The first threaded hole 11221 is a blind hole with its opening facing the support member 12. That is, the first threaded hole 11221 does not penetrate the deformed part 112. In this way, not only can impurities such as burrs, debris, and dust be prevented from entering the resonant cavity 40 through the first threaded hole 11221, but signals can also be prevented from leaking from the first threaded hole 11221.

[0054] The support member 12 is fixedly connected to the fixing part 111 and is spaced apart from the deformable part 112 in the first direction X. The support member 12 has a connecting hole 1211 that extends through along the first direction X.

[0055] The support member 12 is located on the side of the cover plate 11 that faces away from the resonant cavity 40.

[0056] The method by which the support member 12 is fixedly connected to the fixing part 111 is not limited in this application. For example, the support member 12 can be fixedly connected to the fixing part 111 by welding, pressing, snapping, bonding, fastener connection, plugging, etc.

[0057] The support member 12 is spaced apart from the deformable part 112 in the first direction X, so as to reserve deformation space for the deformable part 112 in the first direction X.

[0058] The connecting hole 1211 extends through the first direction X, that is, the connecting hole 1211 is a through hole.

[0059] The compensating member 14 is located between the supporting member 12 and the deformable part 112. An anti-rotation structure 15 is provided between the compensating member 14 and the deformable part 112. The anti-rotation structure 15 is used to prevent the compensating member 14 from rotating relative to the deformable part 112 about the first direction X. The compensating member 14 can move relative to the deformable part 112 toward the supporting member 12 in the first direction X. The compensating member 14 has a second threaded hole 141 extending through along the first direction X. The second threaded hole 141 is aligned with the first threaded hole 11221.

[0060] The second threaded hole 141 is aligned with the first threaded hole 11221, that is, the central axis of the second threaded hole 141 coincides with or substantially coincides with the central axis of the first threaded hole 11221, and the diameter of the second threaded hole 141 is the same as or substantially the same as the diameter of the first threaded hole 11221.

[0061] The shape of the compensation element 14 is not limited in this application. For example, the shape of the compensation element 14 can be circular, elliptical, polygonal or other shapes.

[0062] The first end of the adjusting member 13 is rotatably connected to the connecting hole 1211, and the second end of the adjusting member 13 is at least threadedly connected to the second threaded hole 141.

[0063] The first end of the adjusting member 13 is rotatably connected to the connecting hole 1211, that is, the adjusting member 13 has a degree of freedom to rotate about the first direction X in the connecting hole 1211, but the movement of the adjusting member 13 relative to the support member 12 along the first direction X is restricted.

[0064] The second end of the adjusting member 13 is at least threaded to the second threaded hole 141. This can be understood as the second end of the adjusting member 13 being threaded to the second threaded hole 141; or, the second end of the adjusting member 13 being threaded to both the second threaded hole 141 and the first threaded hole 11221.

[0065] The beneficial effects of the cover plate assembly 10 provided in this application embodiment are as follows: When the adjusting member 13 is rotated in the forward direction, the adjusting member 13 is simultaneously threadedly connected to the second threaded hole 141 on the compensating member 14 and the first threaded hole 11221 on the deformable part 112, so that the deformable part 112 of the cover plate 11 moves closer to the supporting member 12, that is, the deformable part 112 moves upward. Among them, since an anti-rotation structure 15 is provided between the compensating member 14 and the deformable part 112, the compensating member 14 and the deformable part 112 will not rotate relative to each other; and the compensating member 14 can move relative to the deformable part 112 toward the supporting member 12 in the first direction X, so even if the thread starting angles of the first threaded hole 11221 and the second threaded hole 141 do not match, there will be no seizing. When the adjusting member 13 is rotated in the reverse direction, the deformable part 112 moves away from the support member 12, that is, the deformable part 112 moves downward. Furthermore, after the adjusting member 13 disengages from the first threaded hole 11221, it remains threadedly connected to the second threaded hole 141. At this point, if the adjusting member 13 is rotated in the reverse direction again, the anti-rotation structure 15 between the compensating member 14 and the deformable part 112 prevents relative rotation. Therefore, the compensating member 14 can press against the deformable part 112 as it continues to move downward. This pressing action by the compensating member 14 causes the deformable part 112 to continue moving away from the support member 12, that is, the deformable part 112 continues to move downward, thus increasing the downward displacement of the deformable part 112. Therefore, the above solution solves the problem of limited downward displacement of the deformable part 112 and increases the adjustment range of the resonant frequency.

[0066] Please refer to Figure 2 and Figure 3 In some embodiments, the anti-rotation structure 15 includes an anti-rotation protrusion 152 and an anti-rotation groove 151 that cooperates with the anti-rotation protrusion 152, the compensation member 14 is provided with the anti-rotation protrusion 152, and the deformable part 112 has the anti-rotation groove 151.

[0067] Among them, the anti-rotation protrusion 152 is located on the radial side of the second threaded hole 141, and the anti-rotation groove 151 is located on the radial side of the first threaded hole 11221.

[0068] It is understood that the anti-rotation protrusion 152 can be integrally formed with the compensation component 14; or, the anti-rotation protrusion 152 can be fixedly connected to the compensation component 14 by means of welding, pressing, snapping, bonding, fastener connection, plugging, etc.

[0069] During assembly, the anti-rotation protrusion 152 is inserted into the anti-rotation groove 151 to achieve an anti-rotation fit between the compensation member 14 and the deformable part 112. The shape of the anti-rotation protrusion 152 and the anti-rotation groove 151 is not limited in this application, as long as it can achieve the anti-rotation fit between the compensation member 14 and the deformable part 112.

[0070] In some embodiments, the anti-rotation structure 15 includes an anti-rotation protrusion 152 and an anti-rotation groove 151 that cooperates with the anti-rotation protrusion 152, the compensation member 14 has an anti-rotation groove 151, and the deformation portion 112 is provided with an anti-rotation protrusion 152.

[0071] Among them, the anti-rotation protrusion 152 is located on the radial side of the first threaded hole 11221, and the anti-rotation groove 151 is located on the radial side of the second threaded hole 141.

[0072] It is understood that the anti-rotation protrusion 152 can be integrally formed with the deformable part 112; or, the anti-rotation protrusion 152 can be fixedly connected to the deformable part 112 by means of welding, pressing, snapping, bonding, fastener connection, plugging, etc.

[0073] In some other embodiments, the anti-rotation structure 15 includes an anti-rotation hole and an anti-rotation rod that mates with the anti-rotation hole, one of the compensating member 14 and the deformable part 112 is provided with an anti-rotation rod, and the other of the compensating member 14 and the deformable part 112 has an anti-rotation hole.

[0074] Please refer to Figure 3 In some embodiments, a plurality of anti-rotation protrusions 152 are arranged at circumferential intervals along the second threaded hole 141, and the number of anti-rotation grooves 151 is greater than or equal to the number of anti-rotation protrusions 152.

[0075] It is understandable that the anti-rotation protrusions 152 can be arranged in two, three, four or more at intervals along the circumference of the second threaded hole 141.

[0076] The number of anti-rotation grooves 151 is greater than or equal to the number of anti-rotation protrusions 152. This can be understood as follows: for example, when two anti-rotation protrusions 152 are arranged at intervals along the circumference of the second threaded hole 141, at least two anti-rotation grooves 151 can be arranged at intervals along the circumference of the second threaded hole 141; when three anti-rotation protrusions 152 are arranged at intervals along the circumference of the second threaded hole 141, at least three anti-rotation grooves 151 can be arranged at intervals along the circumference of the second threaded hole 141; when four anti-rotation protrusions 152 are arranged at intervals along the circumference of the second threaded hole 141, at least four anti-rotation grooves 151 can be arranged at intervals along the circumference of the second threaded hole 141.

[0077] Optionally, multiple anti-rotation grooves 151 are evenly spaced along the circumference of the second threaded hole 141, and multiple anti-rotation protrusions 152 are evenly spaced along the circumference of the second threaded hole 141, so as to ensure the uniformity of force when the compensation member 14 and the deformation part 112 are anti-rotated.

[0078] Based on the above technical solution, by setting multiple anti-rotation protrusions 152 and multiple anti-rotation grooves 151, the stability of the compensation member 14 and the deformation part 112 when anti-rotation is engaged is ensured.

[0079] In other embodiments, one anti-rotation protrusion 152 is provided, and correspondingly, at least one anti-rotation groove 151 is provided.

[0080] Please refer to Figure 2 and Figure 3 In some embodiments, the deformable part 112 includes a deformable body 1121 and a boss 1122 provided on the deformable body 1121, and a first threaded hole 11221 is provided on the boss 1122.

[0081] Among them, the deformable body 1121 plays a deformation role.

[0082] The boss 1122 is integrally formed with the deformable body 1121. The boss 1122 is located in the middle of the deformable body 1121, or the boss 1122 is located near the middle of the deformable body 1121.

[0083] When the deformable part 112 is provided with an anti-rotation groove 151, the anti-rotation groove 151 is provided on the boss 1122; when the deformable part 112 is provided with an anti-rotation protrusion 152, the anti-rotation protrusion 152 is provided on the boss 1122.

[0084] Based on the above technical solution, in order to facilitate the deformation of the deformable part 112, the deformable body 1121 is usually designed to be thinner than other parts of the cover plate 11. By providing a boss 1122 on the deformable body 1121 and setting the first threaded hole 11221 on the boss 1122, the axial length of the first threaded hole 11221 can be increased, which is beneficial to increase the deformation amount of the deformable part 112, thereby helping to expand the adjustable range of the resonant frequency.

[0085] Please refer to Figure 2 and Figure 3 In some embodiments, the support member 12 includes a support wall 121, an annular wall 122 and a fixing flange 123. The support wall 121 is located at the end of the annular wall 122 away from the deformable part 112, and a connecting hole 1211 is provided on the support wall 121. The fixing flange 123 is located at the end of the annular wall 122 close to the deformable part 112, and the fixing flange 123 is fixedly connected to the fixing part 111.

[0086] The shape of the support wall 121 is not limited in this application. For example, the shape of the support wall 121 can be circular, elliptical, straight, cross-shaped, etc. Optionally, the connecting hole 1211 is located in the middle of the support wall 121.

[0087] The shape of the annular wall 122 can be circular, elliptical, polygonal, etc.

[0088] It is understood that the fixed flange 123 can be an annular flange or a C-shaped flange; or, the fixed flange 123 can also include multiple flange segments arranged circumferentially along the annular wall 122.

[0089] When the support wall 121 is circular, the annular wall 122 is circular, and the fixed flange 123 is an annular flange, the support wall 121, the annular wall 122, and the fixed flange 123 can be integrally formed. For example, the support wall 121, the annular wall 122, and the fixed flange 123 can be integrally formed by a stretching process.

[0090] The supporting wall 121 is located at the end of the annular wall 122 away from the deformable part 112, and the fixed flange 123 is located at the end of the annular wall 122 close to the deformable part 112. It can be understood that the annular wall 122 is located between the supporting wall 121 and the fixed flange 123.

[0091] Optionally, the fixed flange 123 can be bent outwards towards the annular wall 122. This reduces the radial dimensions of the annular wall 122 and the supporting wall 121, which helps save materials and reduce costs. Of course, the fixed flange 123 can also be bent inwards towards the annular wall 122.

[0092] The fixed flange 123 can be fixedly connected to the fixed part 111 by means of welding, pressing, snapping, bonding, fastener connection, plugging, etc.

[0093] Based on the above technical solution, the support member 12 is fixedly connected to the fixing part 111 through the fixed flange 123, which can increase the contact area and thus ensure the stability of the fixed connection between the support member 12 and the fixing part 111.

[0094] In other embodiments, the support member 12 may not include the fixed flange 123, and the support member 12 is fixedly connected to the fixing part 111 through the annular wall 122.

[0095] Please refer to Figure 3 In some embodiments, the fixing part 111 is provided with a positioning step 1111, and the fixing flange 123 is fixedly connected to the positioning step 1111.

[0096] Optionally, the positioning step 1111 is an annular step, and correspondingly, the fixing flange 123 is an annular flange, which is fixedly connected to the annular step. Of course, the positioning step 1111 may also include multiple platform stages arranged at intervals along the circumference of the ring wall 122, and the fixing flange 123 includes multiple flange segments arranged at intervals along the circumference of the ring wall 122, with the multiple flange segments respectively fixedly connected to the multiple platform stages.

[0097] Based on the above scheme, the positioning step 1111 can position the fixed flange 123 to ensure the installation position of the fixed flange 123, thereby facilitating the convenient, quick and reliable fixed connection of the fixed flange 123 to the fixing part 111.

[0098] In other embodiments, please refer to Figure 4 The fixing part 111 does not have a positioning step 1111, and the fixing flange 123 is fixedly connected to the upper surface of the fixing part 111.

[0099] Please refer to Figure 2 and Figure 3 In some embodiments, the adjusting member 13 includes an adjusting body 133 and a first limiting part 131 and a second limiting part 132 disposed on the adjusting body 133. The first limiting part 131, the second limiting part 132 and the adjusting body 133 are an integral structure. The first limiting part 131 is located on the side of the supporting member 12 away from the deformable part 112, and the second limiting part 132 is located on the side of the supporting member 12 facing the deformable part 112.

[0100] Optionally, the first limiting part 131 and the second limiting part 132 protrude from the outer wall surface of the adjusting body 133. The outer wall surface of the adjusting body 133 is also provided with an external thread, which is located on the side of the second limiting part 132 opposite to the first limiting part 131. The adjusting body 133 is threadedly connected to the first threaded hole 11221 and the second threaded hole 141.

[0101] Optionally, both the first limiting part 131 and the second limiting part 132 are annular structures, that is, the first limiting part 131 and the second limiting part 132 together with the adjusting body 133 form an annular groove, and the edge of the connecting hole 1211 is located in the annular groove.

[0102] The first limiting part 131 is located on the side of the support member 12 away from the deformable part 112, and the second limiting part 132 is located on the side of the support member 12 facing the deformable part 112, so that the adjusting member 13 cannot move in the first direction X.

[0103] Optionally, the end of the adjusting body 133 away from the deformable part 112 is also provided with an operating part 1331. An external tool drives the adjusting member 13 to rotate through the operating part 1331, which can improve the ease of operation of rotating the adjusting member 13. The operating part 1331 can be a groove, an opening, an outer peripheral protrusion, or other structures.

[0104] Based on the above technical solution, since the first limiting part 131, the second limiting part 132, and the adjusting body 133 are integrated into one structure, the number of parts is reduced, which is beneficial to the assembly of the cover plate assembly 10.

[0105] In other embodiments, the adjusting member 13 includes an adjusting body 133 and a first limiting part 131 and a second limiting part 132 disposed on the adjusting body 133, wherein at least one of the first limiting part 131 and the second limiting part 132 is a snap ring that is snapped onto the adjusting body 133.

[0106] In some embodiments, based on the fact that the first limiting part 131, the second limiting part 132, and the adjusting body 133 are an integral structure, the first limiting part 131 is formed by pressing the end of the adjusting body 133 away from the deformable part 112. Wherein, before pressing, the first limiting part 131 is as follows: Figure 5 As shown, after the first limiting part 131 is pressed, it is as follows: Figure 2 As shown.

[0107] In some embodiments, based on the fact that the first limiting part 131, the second limiting part 132, and the adjusting body 133 are an integral structure, the first limiting part 131 can be an elastic buckle, that is, the first limiting part 131 retracts inward when inserted into the connecting hole 1211, and after passing through the connecting hole 1211, the first limiting part 131 resets and is located on the side of the support member 12 away from the deformable part 112.

[0108] Please refer to Figure 6 The second aspect of this application provides a filter 100, which includes a cavity 20, a resonator 30 and a cover plate assembly 10 as described in the first aspect, the cover plate assembly 10 being fixed to the cavity 20 and forming a resonant cavity 40 with the cavity 20, the resonator 30 being located within the resonant cavity 40.

[0109] It is understandable that the resonator 30 can be a resonant rod, a resonant column, a resonant disk, etc.

[0110] It is understood that the resonator 30 can be a metal resonator or a dielectric resonator. When the resonator 30 is a dielectric resonator, it can be a ceramic resonator.

[0111] Optionally, the resonator 30 is connected to the bottom wall of the cavity 20, and the resonator 30 and the deformable part 112 are arranged facing each other. In this case, the deformable part 112 can be deformed under force to change the distance between the deformable part 112 and the resonator 30, thereby adjusting the resonant frequency. Of course, the resonator 30 can also be connected to the deformable part 112. In this case, the deformable part 112 can be deformed under force to change the distance between the resonator 30 and the bottom wall of the cavity 20, thereby adjusting the resonant frequency.

[0112] Taking the resonator 30 connected to the bottom wall of the cavity 20 as an example, the resonator 30 can be connected to the bottom wall of the cavity 20 by means of, but not limited to, integral connection, welding, bonding, fastener connection, threaded connection, riveting, pressing, snap-fit, etc.

[0113] The filter 100 adopts any one or more embodiments of the cover plate assembly 10 described above, and thus has the beneficial effects of the above embodiments, which will not be described in detail here.

[0114] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A cover plate assembly, characterized in that, include: A cover plate includes a deformable portion and a fixing portion disposed on the outer periphery of the deformable portion, the deformable portion having a first threaded hole extending in a first direction; A support member is fixedly connected to the fixed part and is spaced apart from the deformable part in the first direction. The support member has a connecting hole that extends through the first direction. A compensating member is located between the supporting member and the deformable part. An anti-rotation structure is provided between the compensating member and the deformable part. The anti-rotation structure is used to prevent the compensating member from rotating relative to the deformable part about the first direction. The compensating member can move relative to the deformable part toward the supporting member in the first direction. The compensating member has a second threaded hole extending through along the first direction. The second threaded hole is aligned with the first threaded hole. An adjusting member, wherein a first end of the adjusting member is rotatably connected to the connecting hole, and a second end of the adjusting member is at least threadedly connected to the second threaded hole.

2. The cover plate assembly as claimed in claim 1, characterized in that, The anti-rotation structure includes an anti-rotation protrusion and an anti-rotation groove that mates with the anti-rotation protrusion. One of the compensation member and the deformable part is provided with the anti-rotation protrusion, and the other of the compensation member and the deformable part is provided with the anti-rotation groove.

3. The cover plate assembly as claimed in claim 2, characterized in that, The anti-rotation protrusions are arranged at intervals along the circumference of the first threaded hole, and the number of anti-rotation grooves is greater than or equal to the number of anti-rotation protrusions.

4. The cover plate assembly as claimed in claim 1, characterized in that, The deformable part includes a deformable body and a boss provided on the deformable body, and the first threaded hole is provided on the boss.

5. The cover plate assembly as described in any one of claims 1-4, characterized in that, The support member includes a support wall, an annular wall, and a fixed flange. The support wall is located at the end of the annular wall away from the deformable part, and the connecting hole is provided on the support wall. The fixed flange is located at the end of the annular wall close to the deformable part, and the fixed flange is fixedly connected to the fixed part.

6. The cover plate assembly as claimed in claim 5, characterized in that, The fixed flange bends outward toward the outer side of the ring wall.

7. The cover plate assembly as claimed in claim 5, characterized in that, The fixing part is provided with a positioning step, and the fixing flange is fixedly connected to the positioning step.

8. The cover plate assembly as described in any one of claims 1-4, characterized in that, The adjusting member includes an adjusting body and a first limiting part and a second limiting part disposed on the adjusting body. The first limiting part, the second limiting part, and the adjusting body are an integral structure. The first limiting part is located on the side of the supporting member away from the deformable part, and the second limiting part is located on the side of the supporting member facing the deformable part.

9. The cover plate assembly as claimed in claim 8, characterized in that, The first limiting part is formed by pressing the end of the adjusting body away from the deformable part.

10. A filter, characterized in that, The device includes a cavity, a resonator, and a cover plate assembly as described in any one of claims 1-9, wherein the cover plate assembly is fixed to the cavity and forms a resonant cavity with the cavity, and the resonator is located within the resonant cavity.

Images