Novel debugging screw
By designing a lightweight zinc-copper tuning screw, the problem of the heavy weight of existing tuning screws has been solved, achieving a lighter filter and improved ease of operation, adaptability, and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU XINTIANSHENG TECH CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-04-17
AI Technical Summary
The existing tuning screw is too heavy, making it difficult to meet the lightweight requirements of small filters.
A novel type of adjustment screw is designed, using zinc-copper alloy. The screw body is hollow and has a strip-shaped opening on its surface, with a flange formed at one end. The inner and outer folds form inner and outer arc-shaped parts, and the flanged part forms a suspended part between the flange and the screw body.
This design achieves screw weight reduction, lower costs, and improves operational convenience and stability. It also adapts to the installation of cover plates with different sizes of holes, reducing damage and improving bending strength.
Smart Images

Figure CN224138307U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of debugging screw technology, specifically a novel debugging screw. Background Technology
[0002] With the rapid development of electronic technology, filters are playing an increasingly important role in wireless communication, radar systems, electronic countermeasures, satellite navigation, and other fields. The main function of a filter is to allow signals of a specific frequency to pass through while suppressing other unwanted frequencies. To achieve this goal, filter designers must ensure that the filter can be precisely adjusted and matched to the required frequency characteristics.
[0003] In existing filter designs, the tuning screw is a key component for adjusting the filter's resonant frequency and Q value. Due to the market demand for minimizing the weight of small filters, it is difficult to achieve a lighter overall product simply by reducing the weight of the cavity and cover. Traditional tuning screws are conventional screws with nuts, which are relatively heavy. Although this structure can meet the functional requirements, it has certain limitations in terms of weight. Therefore, we propose a new type of tuning screw to solve the above-mentioned problems. Utility Model Content
[0004] In view of the shortcomings of the existing technology, this utility model provides a new type of adjustment screw, which solves the problem of the heavy weight of the adjustment screw.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel adjusting screw, comprising a screw body;
[0006] The screw body is provided with a hollow section;
[0007] The surface of the screw body is provided with a slot;
[0008] One end of the screw body is folded outward to form an integrally formed flange.
[0009] Preferably, the length of the strip-shaped opening is consistent with the overall length of the screw body.
[0010] Preferably, the screw body has a rounded corner on the edge surface away from the flange.
[0011] Preferably, the screw body is made of zinc-copper alloy.
[0012] Preferably, the flange and the inner and outer folded portions of the screw body respectively form an inner arc-shaped portion and an outer arc-shaped portion.
[0013] Preferably, the outwardly turned flange forms a suspended portion between itself and the screw body.
[0014] Beneficial effects
[0015] This invention provides a novel adjusting screw. Compared with the prior art, it has the following advantages:
[0016] This new type of adjustment screw has a hollow section on the screw body, which reduces the weight of the screw body. It is very lightweight, which can effectively save costs and is conducive to the overall weight reduction of the filter. At the same time, the screw body has no external threads, and the adjustment cover does not need to be tapped but can be directly drilled, which improves the convenience and practicality of operation. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a structural schematic diagram from another perspective of the present utility model.
[0019] In the diagram: 101, screw body; 102, flange; 103, strip-shaped opening; 104, outer arc-shaped part; 105, rounded corner; 106, hollow part; 107, suspended part; 108, inner arc-shaped part. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] like Figure 1-2 As shown:
[0022] A novel type of adjustment screw includes a screw body 101, which is made of zinc white copper material. Zinc white copper has good mechanical properties, corrosion resistance and certain wear resistance, which enables the screw body 101 to maintain stable performance in harsh environments.
[0023] The screw body 101 is provided with a hollow part 106, which can reduce the weight of the screw body 101;
[0024] The screw body 101 has a strip-shaped opening 103 on its surface. The length of the strip-shaped opening 103 is the same as the overall length of the screw body 101. The screw body 101 has an axial strip-shaped opening 103 on its surface. The design of the strip-shaped opening 103 makes the diameter of the screw body 101 have a certain degree of flexibility. This flexible design allows the screw body 101 to adapt to different sizes of cover plate holes during installation or adjustment, increasing the applicability and flexibility of the screw body 101.
[0025] One end of the screw body 101 is folded outward to form an integrally formed flange 102. The main function of the flange 102 is to accurately position the screw body 101 during installation and ensure the correct docking of the screw body 101 and the cover plate. The inner and outer folds of the flange 102 and the screw body 101 respectively form an inner arc-shaped part 108 and an outer arc-shaped part 104. A suspended part 107 is formed between the outwardly folded flange 102 and the screw body 101.
[0026] The formation of the inner arc-shaped part 108 and the outer arc-shaped part 104 increases the bending strength and bending stiffness of the flange 102, making the flange 102 more robust and less prone to deformation or damage when subjected to external forces. The suspended part 107 can provide a certain shock absorption and buffering effect when the flange 102 is subjected to impact, reducing damage to the screw body 101.
[0027] The working principle and usage process of this utility model are as follows: When using this new type of debugging screw, the screw body 101 is installed at the mounting hole of the cover plate (not shown in the figure). The diameter of the mounting hole of the cover plate is smaller than the initial diameter of the screw body 101. In this way, the screw body 101 and the cover plate are interference fit, which realizes a tight connection and improves the installation stability of the screw body 101. After the screw body 101 is inserted and installed, the filter resonant frequency and Q value are adjusted. The screw body 101 can be set with multiple sets of different lengths. Finally, as needed, the screw bodies 101 of different lengths are inserted into the cover plate. After the performance test is OK, solder paste is applied to fix it.
[0028] This solution features a hollow section 106 on the screw body 101, which reduces the weight of the screw body 101, making it very lightweight and effectively saving costs. It also contributes to the overall lightweighting of the filter. In addition, the screw body 101 has no external threads, so the debugging cover does not need to be tapped; a through hole can be drilled directly, improving the convenience and practicality of operation.
[0029] Furthermore:
[0030] In an optional embodiment, a rounded corner 105 is provided on the edge surface of the screw body 101 away from the flange 102.
[0031] In this embodiment, the rounded corner 105 makes it easier to insert the screw body 101 into the cover plate mounting hole, thus improving the performance of this structure.
[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A novel commissioning screw, characterized by: Includes the screw body (101); The screw body (101) is provided with a hollow part (106); The surface of the screw body (101) is provided with a strip-shaped opening (103); One end of the screw body (101) is folded outward to form an integrally formed flange (102).
2. The novel commissioning screw as claimed in claim 1, wherein: The length of the strip-shaped opening (103) is consistent with the overall length of the screw body (101).
3. The novel commissioning screw as claimed in claim 2, wherein: The screw body (101) has a rounded corner (105) on the edge surface away from the flange (102).
4. The novel debugging screw rod according to claim 1, characterized in that: The screw body (101) is made of zinc-copper alloy.
5. The novel commissioning screw as claimed in claim 1, wherein: The flange (102) and the inner and outer folds of the screw body (101) respectively form an inner arc-shaped part (108) and an outer arc-shaped part (104).
6. The novel commissioning screw as claimed in claim 1, wherein: The outwardly folded flange (102) forms a suspended portion (107) between itself and the screw body (101).