Screw adjusting assembly and electronic equipment
By introducing a sealing structure of blocking rings and crimping rings into the cavity filter, the problem of debris during screw and nut engagement is solved, improving production efficiency and signal debugging effect, and reducing costs.
Patent Information
- Application Number
- CN202520189745.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-07
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-02-07
AI Technical Summary
During the commissioning process of existing cavity filters, metal debris is easily generated when the screw and nut are screwed together, which can lead to short circuits or poor intermodulation. In addition, frequent disassembly and cleaning are required, resulting in low production efficiency and high cost.
The screw adjustment assembly includes a cover plate, a blocking ring, and a pressing ring. The blocking ring is snapped into the adjustment hole, and the pressing ring is sleeved around the blocking ring and pressed together to form a sealing structure, preventing metal debris generated when the screw and nut are screwed together from entering the functional cavity.
It effectively reduces the entry of metal debris into the functional cavity, lowers the risk of short circuits and intermodulation, improves production efficiency and signal debugging effect, and reduces production costs.
Smart Images

Figure CN223927630U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to electronic equipment field especially, and relates to a screw adjusting assembly and electronic equipment. BACKGROUND
[0002] Filter is the key equipment in mobile communication system, and the existing cavity filter debugging rod is mostly screw rod with thread, the screw rod cooperates with the nut arranged on the cover plate, the screw rod is screwed with the nut through artificial mode, the height of the screw rod is adjusted to reach the design performance index. However, the screw rod and the nut are easy to produce chippings in the screwing process, which can fall into the function cavity, and can easily cause short circuit between the screw rod and the resonant rod or cause intermodulation failure. Therefore, it is necessary to provide a tuning assembly and electronic equipment to solve the above problems. SUMMARY
[0003] The utility model discloses a new screw adjusting assembly and electronic equipment can reduce the metal chippings to fall into the function cavity, cause the bad.
[0004] To achieve the above object, the utility model adopts the following technical scheme:
[0005] A screw adjusting assembly, comprising:
[0006] Cover plate has debugging hole;
[0007] Blocking ring, at least part of the blocking ring is arranged in the debugging hole, and the blocking ring is clamped with the hole wall of the debugging hole;
[0008] Compression ring, arranged in the debugging hole, at least part of the compression ring is sleeved on the periphery of the blocking ring and is in pressure contact with the blocking ring;
[0009] Screw rod assembly, comprising screw rod and nut spirally arranged on the screw rod, the screw rod penetrates through the blocking ring and the compression ring from the debugging hole.
[0010] As a further improved technical scheme of the utility model, the blocking ring comprises a first base and a protruding portion arranged around one end of the first base, the hole wall of the debugging hole is provided with a stepped portion, the first base is in upper and lower abutting contact with the stepped portion, and the protruding portion is in close contact with the hole wall of the debugging hole.
[0011] As a further improved technical scheme of the utility model, the first base and the protruding portion cooperate to form a matching groove, and at least part of the compression ring is in pressure contact with the protruding portion after extending into the matching groove.
[0012] As a further improved technical scheme of the utility model, the crimping ring further comprises a second annular portion annularly arranged on the second base portion, the second annular portion is arranged between the first annular portion and the sealing ring, and the second annular portion is connected with the hole wall of the debugging hole.
[0013] As a further improved technical scheme of the utility model, the crimping ring further comprises a second annular portion annularly arranged on the second base portion, the second annular portion is arranged between the first annular portion and the sealing ring, and the second annular portion is connected with the hole wall of the debugging hole.
[0014] As a further improved technical scheme of the utility model, the first annular portion and the second annular portion have a gap therebetween.
[0015] As a further improved technical scheme of the utility model, the sealing ring and the first base portion are integrally injection molded.
[0016] As a further improved technical scheme of the utility model, the sealing ring is sleeved on the outer periphery of the first base portion.
[0017] As a further improved technical scheme of the utility model, the blocking ring further comprises a hollow extension portion, the extension portion is arranged on the other side of the first base portion relative to the protruding portion, the stepped portion has a through hole, and the extension portion protrudes from the cover plate from the through hole.
[0018] As a further improved technical scheme of the utility model, the blocking ring is made of a high polymer material.
[0019] As a further improved technical scheme of the utility model, the first base portion has a first matching hole, the second base portion has a second matching hole, the first matching hole and the second matching hole are in communication, the screw rod passes through the second matching hole and the first matching hole in sequence, the screw rod is threadedly connected with the inner wall of the second matching hole, and the screw rod is interference-fitted with the inner wall of the first matching hole.
[0020] An electronic device comprises the screw adjusting assembly.
[0021] Compared with the prior art, the utility model has the beneficial effects that:
[0022] This utility model discloses a screw adjustment assembly, which includes a cover plate, a retaining ring, a crimping ring, and a screw assembly. The cover plate has an adjustment hole, at least part of the retaining ring is disposed within the adjustment hole and engages with the hole wall, and the crimping ring is disposed within the adjustment hole. By fitting at least part of the crimping ring around the retaining ring and crimping it, metal debris generated by the screw and nut during the adjustment process is prevented from affecting signal adjustment, thereby improving the signal adjustment effect of the screw adjustment assembly. Attached Figure Description
[0023] Figure 1 This is a three-dimensional schematic diagram of the adjusting screw assembly in this utility model;
[0024] Figure 2 This is a top view of the adjusting screw assembly in this utility model;
[0025] Figure 3 yes Figure 2 Enlarged schematic diagram of a partial cross-section along AA;
[0026] Figure 4 This is a partially enlarged schematic diagram of the second embodiment of the blocking ring in this utility model;
[0027] Figure 5 yes Figure 2 A partially enlarged cross-sectional view along the middle AA section;
[0028] Figure 6 This is a three-dimensional disassembled entity of the cover plate, blocking ring, pressing ring and screw assembly in this utility model;
[0029] Figure 7 This is a three-dimensional exploded view of the screw assembly, crimping ring, and retaining ring in this utility model;
[0030] Figure 8 yes Figure 7 Another perspective of the three-dimensional decomposition diagram;
[0031] Figure 9 This is a front view of the pressure ring in this utility model;
[0032] Figure 10 yes Figure 9 A magnified view of part B in the middle section;
[0033] Figure 11 This is a cross-sectional schematic diagram of the first embodiment of the blocking ring in this utility model;
[0034] Figure 12 This is a cross-sectional schematic diagram of the second embodiment of the blocking ring in this utility model. Detailed Implementation
[0035] The exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. If several embodiments exist, features in these embodiments may be combined with each other without conflict. When the description refers to the drawings, unless otherwise stated, the same numbers in different drawings represent the same or similar elements. The descriptions in the following exemplary embodiments do not represent all embodiments consistent with the present invention; rather, they are merely examples of apparatuses, products, and / or methods consistent with some aspects of the present invention as set forth in the claims.
[0036] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the scope of protection of this invention. The singular forms “a,” “the,” or “the” used in the specification and claims of this invention are also intended to include the plural forms, unless the context clearly indicates otherwise.
[0037] It should be understood that the terms "first," "second," and similar words used in the specification and claims of this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish the features. Similarly, the terms "an" or "a" do not indicate a quantity limitation, but rather indicate the presence of at least one. Unless otherwise stated, the terms "before," "after," "upper," "lower," and similar words appearing in this utility model are for ease of explanation only and are not limited to a specific location or spatial orientation. The terms "comprising" or "including" are an open-ended expression, meaning that the element preceding "comprising" or "including" covers the element following "comprising" or "including" and its equivalents, which does not exclude that the element preceding "comprising" or "including" may also include other elements. In this utility model, the word "several" means two or more.
[0038] Please refer to Figures 1 to 12This utility model discloses an electronic device. In the embodiments of this application, the electronic device is used in radio frequency products, including but not limited to filters, duplexers, combiners, tower-top amplifiers, etc., which are not limited here. The electronic device includes a body and a screw adjustment assembly 100. The body has a cavity with an opening on one side. The screw adjustment assembly 100 includes a cover plate 1, a blocking ring 2, a crimping ring 3, and a screw assembly 4. The cover plate 1 has an adjustment hole 101 and covers the opening of the body. At least a portion of the blocking ring 2 is disposed in the adjustment hole 101, and the blocking ring 2 is engaged with the hole wall of the adjustment hole 101. The crimping ring 3 is disposed in the adjustment hole 101, and at least a portion of the crimping ring 3 is sleeved around the blocking ring 2 and crimped with the blocking ring 2. The screw assembly 4 includes a screw 41 and a nut 42 screwed onto the screw 41. The screw 41 passes through the adjustment hole 101 and the blocking ring 2 and the crimping ring 3. In this embodiment, the nut 42 is disposed on the top of the cover plate 1. This design reduces the risk of metal debris falling into the cavity of the main body during the screw 41 and nut 42 screw engagement, thus preventing short circuits or intermodulation of electronic equipment.
[0039] Please refer to Figures 3 to 7 The test hole 101 has a stepped portion 11 on its wall. Specifically, the stepped portion 11 is a hollow ring. The cover plate 1 includes a top wall 12 and a bottom wall 13 arranged opposite each other in the vertical direction. The stepped portion 11 extends from the bottom wall 13 toward the test hole 101. By placing the blocking ring 2 in the test hole 101 and engaging it with the stepped portion 11, the blocking ring 2 can be fixed, preventing it from falling off the cover plate 1 during the test process. This would prevent metal debris from falling into the receiving cavity, causing a short circuit or intermodulation risk during test.
[0040] Please refer to Figures 3 to 7 as well as Figures 11 to 12In this embodiment, the blocking ring 2 includes a first base 21 and a protrusion 22 annularly disposed at one end of the first base 21. The first base 21 and the protrusion 22 cooperate to form a mating groove 201. At least a portion of the pressing ring 3 extends into the mating groove 201 and is pressed into the protrusion 22. The first base 21 is annular in shape, and the center of the first base 21 has a first mating hole 202. The screw 41 passes through the pressing ring 3 and the first mating hole 202 and extends into the cavity. The diameter of the protrusion 22 matches the diameter of the adjustment hole 101 so that the blocking ring 2 can be assembled into the adjustment hole 101. The first base 21 and the stepped portion 11 abut against each other vertically, so that the blocking ring 2 can be locked into the adjustment hole 101, preventing the blocking ring 2 from detaching from the cover plate 1. Preferably, the protrusion 22 is vertically disposed at the edge of one end of the first base 21. Alternatively, the protrusion 22 may be vertically disposed at a position other than one end edge of the first base 21; this is not limited here. The protrusion 22 includes a first annular wall 221 and a second annular wall 222. The first annular wall 221 and the second annular wall 222 are disposed opposite to each other along the radial direction of the protrusion 22. The first annular wall 221 is press-fitted with the pressing ring 3, and the second annular wall 222 is fitted with the wall of the adjustment hole 101, thereby improving the stability of the blocking ring 2. Preferably, the protrusion 22 and the first base 21 are integrally formed by injection molding to improve the overall structural strength of the blocking ring 2. The blocking ring 2 disclosed in this utility model is made of polymer material, which reduces costs while improving the wear resistance of the blocking ring 2, thereby increasing the service life of the screw adjustment assembly 100.
[0041] Please refer to Figure 4 as well as Figure 12 In the second embodiment, the blocking ring 2 further includes a hollow extension 23, which is disposed on the other side of the first base 21 relative to the protrusion 22. The stepped portion 11 has a through hole 102, and the extension 23 protrudes from the through hole 102 out of the cover plate 1. In this embodiment, the extension 23 has a guide hole 203, which communicates with both the first mating hole 202 and the cavity. This allows the screw 41 to pass through the guide hole 203 from the first mating hole 202 into the cavity for tuning the electronic device. Preferably, the outer diameter of the guide hole 203 is smaller than the inner diameter of the first mating hole 202, so that the blocking ring 2 can be fitted into the adjustment hole 101 of the cover plate 1. The screw 41 includes an integrally formed first rod portion 411 and second rod portion 412. The diameter of the first rod portion 411 is larger than the diameter of the second rod portion 412, and the diameter of the first rod portion 411 is adapted to the mating groove 201 formed by the first annular wall 221. The diameter of the second rod portion 412 is adapted to the guide hole 203. By adding the extension portion 23, the overall length of the blocking ring 2 is increased, thereby enabling the blocking ring 2 to perform graded processing of metal chips and further improving the chip blocking effect of the blocking ring 2.
[0042] Please refer to Figures 3 to 10 The crimping ring 3 includes a second base 31, a first annular portion 32 surrounding one end of the second base 31, and a sealing ring 33 surrounding the other end of the second base 31, away from the first annular portion 32. The first annular portion 32 overlaps the wall of the adjustment hole 101, and the sealing ring 33 is crimped into the protrusion 22. Specifically, the second base 31 is a hollow cylinder, and the first annular portion 32 and the sealing ring 33 are respectively arranged circumferentially around the outer periphery of the second base 31. The second base 31 includes a radially arranged opposite first end 311 and a second end 312, with the first annular portion 32 located at the first end 311 and the sealing ring 33 located at the second end 312. When the crimping ring 3 is placed in the adjustment hole 101, part of the second end 312 extends into the mating groove 201 and abuts against the top surface of the first base 21, allowing the sealing ring 33 to be crimped against the second annular wall 222, thereby serving as a chip-blocking mechanism. The diameter of the first annular portion 32 is larger than the diameter of the tuning hole 101. This arrangement can prevent external dust and debris from entering the cavity through the gap between the first annular portion 32 and the top wall 12 of the cover plate 1, thereby affecting the tuning effect of the electronic device.
[0043] Please refer to Figures 9 to 10 The crimping ring 3 also includes a second annular portion 34 disposed around the second base 31. The second annular portion 34 is located between the first annular portion 32 and the sealing ring 33, and is connected to the wall of the adjustment hole 101. Specifically, the second annular portion 34 is disposed circumferentially around the outer periphery of the second base 31. The second annular portion 34 includes a first abutting surface 341 and a second abutting surface 342 perpendicularly disposed on the second base 31, and a mating surface 343 connecting the first abutting surface 341 and the second abutting surface 342. The first abutting surface 341 faces the first annular portion 32, the second abutting surface 342 faces the sealing ring 33, and the mating surface 343 faces the wall of the adjustment hole 101. When the crimping ring 3 is screwed into the adjustment hole 101, the second abutting surface 342 abuts against the top of the protrusion 22, and the mating surface 343 connects to the wall of the adjustment hole 101. Preferably, the mating surface 343 is provided with an external thread, the hole wall of the adjustment hole 101 is provided with an internal nut 42, and the second annular part 34 is threadedly connected to the hole wall of the adjustment hole 101, which can further improve the stability of the crimping ring 3 in the adjustment hole 101.
[0044] Preferably, there is a gap 301 between the first annular portion 32 and the second annular portion 34. With this configuration, as the crimping ring 3 is gradually screwed into the adjustment hole 101, the first annular portion 32 deforms under force, forcing a portion of the top wall 12 of the cover plate 1 near the adjustment hole 101 to be squeezed into the gap 301, forming an inverted structure, thereby increasing the reliability of the crimping.
[0045] The sealing ring 33 extends outward from the outer periphery of the second base 31 along the radial direction of the second base 31. Preferably, the sealing ring 33 includes a first plane 331 and an inclined surface 332. The first plane 331 is perpendicular to the second base 31 and parallel to the second abutment surface 342. One end of the inclined surface 332 is connected to the free end of the first plane 331, and the other end of the inclined surface 332 is inclined downward toward the second end 312. By setting the sealing ring 33 with an inclined structure, when the sealing ring 33 is pressed against the protrusion 22 of the blocking ring 2, the inclined surface 332 and the first abutment surface 341 are pressed gradually along the inclined direction of the inclined surface 332, thereby improving the chip-blocking effect. In one embodiment, the sealing ring 33 and the first base 21 are integrally injection molded. In another embodiment, the sealing ring 33 is sleeved on the outer periphery of the first base 21. Both of the above embodiments enable the sealing ring 33 to press against the protrusion 22, thereby improving the sealing performance between the blocking ring 2 and the pressing ring 3, reducing the entry of metal debris into the receiving cavity, and thus affecting the signal tuning effect of the electronic device.
[0046] The second base 31 has a second mating hole 302, and the first mating hole 202 communicates with the second mating hole 302. The screw 41 passes through the second mating hole 302 and the first mating hole 202 in sequence. In this embodiment, the screw 41 is threaded to the inner wall of the second mating hole 302, and the screw 41 is interference-fitted to the inner wall of the first mating hole 202. This ensures that during the adjustment process, metal debris generated between the screw 41 and the nut 42 is blocked within the mating groove 201, preventing debris from entering the cavity through the gap between the second base 31 and the screw 41 and affecting the signal tuning effect.
[0047] In summary, this utility model discloses a screw adjustment assembly 100, which includes a cover plate 1, a blocking ring 2, a crimping ring 3, and a screw assembly 4. The cover plate 1 has an adjustment hole 101. At least a portion of the blocking ring 2 is disposed within the adjustment hole 101 and engages with the hole wall of the adjustment hole 101. The crimping ring 3 is disposed within the adjustment hole 101. By fitting at least a portion of the crimping ring 3 around the blocking ring 2 and crimping it, the metal debris generated by the screw 41 and nut 42 during the adjustment process is prevented from affecting the signal adjustment, thereby improving the signal adjustment effect of the screw adjustment assembly 100.
[0048] The above embodiments are only for illustration and not for limiting the technical solutions described in this utility model. The understanding of this specification should be based on those skilled in the art. For example, the directional descriptions such as "front", "back", "left", "right", "up", and "down" are important. Although this specification has described the present invention in detail with reference to the above embodiments, those skilled in the art should understand that they can still make modifications or equivalent substitutions to this utility model. All technical solutions and improvements that do not depart from the spirit and scope of this utility model should be covered within the scope of the claims of this utility model.
Claims
1. A screw adjusting assembly, characterized in that, include: Cover plate (1) having an adjustment hole (101); A blocking ring (2), at least part of which is disposed in the debugging hole (101), wherein the blocking ring (2) is engaged with the hole wall of the debugging hole (101); A crimping ring (3) is provided inside the adjustment hole (101), and at least part of the crimping ring (3) is sleeved on the periphery of the blocking ring (2) and crimped with the blocking ring (2); The screw assembly (4) includes a screw (41) and a nut (42) screwed onto the screw (41). The screw (41) passes through the blocking ring (2) and the crimping ring (3) through the adjustment hole (101).
2. The screw adjusting assembly as described in claim 1, characterized in that: The blocking ring (2) includes a first base (21) and a protrusion (22) disposed around one end of the first base (21). The wall of the debugging hole (101) is provided with a stepped portion (11). The first base (21) and the stepped portion (11) abut against each other vertically. The protrusion (22) fits against the wall of the debugging hole (101).
3. The screw adjusting assembly as described in claim 2, characterized in that: The first base (21) and the protrusion (22) cooperate to form a mating groove (201), and at least part of the crimping ring (3) extends into the mating groove (201) and then crimps with the protrusion (22).
4. The screw adjusting assembly as described in claim 2, characterized in that: The crimping ring (3) includes a second base (31), a first annular portion (32) surrounding one end of the second base (31), and a sealing ring (33) surrounding the other end of the second base (31) away from the first annular portion (32). The first annular portion (32) overlaps the wall of the adjustment hole (101), and the sealing ring (33) is crimped with the protrusion (22).
5. The screw adjusting assembly as described in claim 4, characterized in that: The crimping ring (3) further includes a second annular portion (34) disposed around the second base (31), the second annular portion (34) being disposed between the first annular portion (32) and the sealing ring (33), and the second annular portion (34) being connected to the wall of the debugging hole (101).
6. The screw adjusting assembly as described in claim 5, characterized in that: There is a gap (301) between the first annular portion (32) and the second annular portion (34).
7. The screw adjusting assembly as described in claim 4, characterized in that: The sealing ring (33) and the first base (21) are integrally injection molded.
8. The screw adjusting assembly as described in claim 4, characterized in that: The sealing ring (33) is fitted around the outer periphery of the first base (21).
9. The screw adjusting assembly as described in claim 2, characterized in that: The blocking ring (2) further includes a hollow extension (23), which is disposed on the other side of the first base (21) relative to the protrusion (22). The stepped portion (11) has a through hole (102), and the extension (23) protrudes from the through hole (102) from the cover plate (1).
10. The screw adjusting assembly as described in claim 1, characterized in that: The blocking ring (2) is made of polymer material.
11. The screw adjusting assembly as described in claim 4, characterized in that: The first base (21) has a first mating hole (202), and the second base (31) has a second mating hole (302). The first mating hole (202) communicates with the second mating hole (302). The screw (41) passes through the second mating hole (302) and the first mating hole (202) in sequence. The screw (41) is threaded to the inner wall of the second mating hole (302), and the screw (41) is interference-fitted to the inner wall of the first mating hole (202).
12. An electronic device, characterized in that, The electronic device includes the screw adjustment assembly as described in any one of claims 1-11.