A C-type beryllium copper spring that is easy to assemble

Abstract

This utility model discloses a C-shaped beryllium copper spring that is easy to splice, including a spring body, a splicing structure, and a rotating transition structure. The spring body includes a base plate and a plurality of C-shaped spring pieces arranged and fixed along its length. The splicing structure includes at least one set of bosses and a set of matching grooves at the end of the base plate. The rotating transition structure is disposed at one end of the base plate and includes a hinge interface at the end of the base plate and a transition plate hinged to the hinge interface via a rotating shaft. The transition plate can rotate around the rotating shaft between a horizontal and a vertical position. The bosses are disposed on the end face of the transition plate. Adjacent spring bodies can be horizontally spliced ​​by embedding the bosses into the grooves, or by rotating the transition plate of the rotating transition structure, the bosses at their ends can be inserted into the grooves of another spring body to achieve splicing at opposite angles. This utility model aims to solve the problem of the difficulty in achieving splicing of beryllium copper springs at different angles.

Description

Technical Field

[0001] This utility model relates to the field of beryllium copper spring technology, and in particular to a C-shaped beryllium copper spring that is easy to assemble. Background Technology

[0002] In the field of electromagnetic shielding engineering, C-type beryllium copper springs are key components for sealing gaps in shielded room doors and windows, and their splicing performance directly affects the overall shielding effectiveness. Traditional spring splicing methods have poor angle adaptability. Because existing springs mostly adopt a planar splicing structure, continuous sealing at non-planar corners cannot be achieved, resulting in weak points in electromagnetic leakage at the connection between the side and bottom edges of the shielding door. Their linear splicing structure requires additional adapters at 90° corners, which not only increases installation complexity but also introduces the problem of increased contact resistance. Utility Model Content

[0003] The main purpose of this invention is to provide a C-shaped beryllium copper spring that is easy to splice, aiming to solve the compatibility problem of multi-angle splicing and cutting of beryllium copper springs.

[0004] To achieve the above objectives, the present invention proposes a C-type beryllium copper spring that is easy to assemble, comprising:

[0005] The reed body includes a base plate and multiple C-shaped springs arranged and fixed along its length.

[0006] The splicing structure includes at least one set of bosses and one set of matching grooves at the end of the film; and

[0007] A rotating adapter structure is provided at one end of the substrate, including a hinge interface formed at the end of the substrate and an adapter plate hinged to the hinge interface via a rotating shaft. The adapter plate can rotate around the rotating shaft between a horizontal position and a vertical position, and the boss is provided on the end face of the adapter plate.

[0008] The two adjacent reed bodies are horizontally spliced ​​by embedding the boss into the groove, or by rotating the adapter plate of the rotary adapter structure and inserting the boss at its end into the groove of another reed body to achieve non-planar angle splicing.

[0009] In one possible implementation, the groove portion is provided in multiple sets, and the position of each set of the groove portion corresponds to the installation position of a C-shaped spring.

[0010] In one possible implementation, the sidewalls of each of the boss portions are fitted with elastic conductive strips, and the inner wall of the groove portion is provided with silver-plated contacts, wherein when the boss portion is inserted into the groove portion, the elastic conductive strips and the silver-plated contacts form surface contact.

[0011] In one possible implementation, the depth of the groove is greater than the height of the boss, and the inner wall of the groove is provided with a stepped limiting flange; when the boss is fully inserted, the limiting flange abuts against the end face of the boss, so that the elastic conductive strip and the silver-plated contact are kept in a compressed contact state.

[0012] In one possible implementation, the film is further provided with a plurality of fixing holes at equal intervals for fixing the film.

[0013] This utility model's technical solution effectively solves the problem of traditional splicing methods' difficulty in achieving splicing at different angles by employing a splicing structure and a rotating transition structure. Simultaneously, the rotating transition structure allows the spring body to be flexibly spliced ​​between horizontal and vertical positions, improving installation convenience and adaptability. Furthermore, the protruding and recessed design of the splicing structure provides a shear-resistant fixing connection, making the spliced ​​structure more stable and enhancing the overall sealing effect, especially suitable for sealing non-circular corners on the sides and bottom of shielded doors. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of two adjacent spring bodies of this utility model when they are spliced ​​in parallel;

[0016] Figure 2 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0017] Figure 3 This is an enlarged schematic diagram of part A of this utility model.

[0018] Explanation of icon numbers:

[0019] 1. Spring body; 11. Base plate; 12. C-shaped spring; 2. Splicing structure; 21. Boss part; 22. Groove part; 3. Rotary transition structure; 31. Hinge interface; 32. Adapter plate; 41. Elastic conductive strip; 42. Silver-plated contact; 5. Fixing hole.

[0020] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0022] To address the problems in the background technology, this utility model proposes a C-shaped beryllium copper spring that is easy to assemble, comprising:

[0023] The reed body 1 includes a base plate 11 and a plurality of C-shaped spring pieces 12 arranged and fixed along its length.

[0024] The splicing structure 2 includes at least one set of protrusions 21 and a set of matching grooves 22 located at the end of the substrate 11; and

[0025] The rotating transition structure 3 is disposed at one end of the substrate 11, including a hinge interface 31 opened at the end of the substrate 11 and a transition plate 32 hinged to the hinge interface 31 via a rotating shaft. The transition plate 32 can rotate around the rotating shaft between a horizontal position and a vertical position. The boss portion 21 is disposed on the end face of the transition plate 32.

[0026] The two adjacent reed bodies 1 are horizontally spliced ​​by embedding the boss part 21 into the groove part 22, or by rotating the adapter plate 32 of the rotating adapter structure 3, the boss part 21 at its end is inserted into the groove part 22 of another reed body 1 to achieve non-planar angle splicing.

[0027] Combined with reference Figures 1 to 3 As shown, in this embodiment, the spring body 1 consists of a long strip-shaped base plate 11 and multiple C-shaped spring pieces 12. The base plate 11 is a beryllium copper alloy strip with uniform thickness, possessing high elasticity and corrosion resistance. The C-shaped spring pieces 12 are formed by stamping, with their open sides facing the outer side of the base plate 11, forming a continuous wavy shielding contact surface. Each C-shaped spring piece 12 is arranged at equal intervals along the length of the base plate 11 and is fixed to the base plate 11 by laser welding or riveting. The spacing between adjacent spring pieces is designed to be 5–10 mm according to the shielding effectiveness requirements. The spring body 1 can be customized to different length specifications (such as 1m and 2m standard sections), and cutting lines are preset at the spring piece gaps to facilitate segmentation according to the installation dimensions.

[0028] The splicing structure 2 is integrated at both ends of the base plate 11, including two types of interfaces: a boss portion 21 and a groove portion 22. The groove portion 22 is located on the first end face of the base plate 11 and consists of multiple independent groove structures. Each groove portion 22 corresponds to the installation position of a C-shaped spring piece 12, ensuring that at least one complete groove is retained after cutting. The groove portion 22 is preferably T-shaped, with the groove opening width smaller than the groove cavity width, forming a lateral locking structure. The boss portion 21 is located on the end face of the adapter plate 32 of the rotary transition structure 3. During horizontal splicing, the boss portion 21 of one spring piece is embedded along the plane of the base plate 11 into the groove portion 22 of the adjacent spring piece, achieving a shear-resistant fixed connection through the interlocking of the T-shaped boss and the groove cavity. A rotary transition structure 3 is provided at at least one end of the base plate 11 for vertical splicing, and it includes a hinge interface 31 and an adapter plate 32. The hinge interface 31 has a U-shaped opening machined at the end of the substrate 11, and a coaxial pivot hole is provided on the inner wall of the opening. The adapter plate 32 is hinged to the hinge interface 31 via a miniature pivot and can rotate around the pivot within the range of 0°–90°. In the horizontal position, the adapter plate 32 is coplanar with the substrate 11, maintaining overall flatness; in the vertical position, the adapter plate 32 rotates to be perpendicular to the plane of the substrate 11, with its free end facing upwards. The free end face of the adapter plate 32 is provided with one or more sets of bosses 21 (preferably T-shaped protrusions). In addition, in other embodiments, a damping structure (such as a torsion spring or friction pad) can be built into the hinge interface 31 to automatically lock the adapter plate 32 at the 0° and 90° positions.

[0029] The non-circular splicing process of this application takes the 90° sealing of the side and bottom edges of a shielding door as an example: the rotating adapter structure 3 of the spring body 1 (spring A) adapted to the side length is oriented towards the bottom edge of the door. Then, the adapter plate 32 of the spring A is rotated to a vertical position so that the boss portion 21 on the end face of the adapter plate 32 faces upward; take the spring body 1 (spring B) adapted to the bottom length and vertically fasten the groove portion 22 at the first end of its bottom plate 11 to the boss portion 21 of the adapter plate 32 of the spring A; the interlocking of the T-shaped boss and the groove provides anti-pull-out force to form a stable corner seal.

[0030] In one possible implementation, the groove portion 22 is provided in multiple sets, with each set of groove portions 22 corresponding to the installation position of a C-shaped spring piece 12. Specifically, a set of groove portions 22 is provided on the end face of the base plate 11 directly below the welding or riveting fixing point of each C-shaped spring piece 12, so that the spacing between adjacent groove portions 22 is consistent with the arrangement spacing of the C-shaped spring pieces 12. This layout design ensures that when the spring is cut at a preset cutting position between any two C-shaped spring pieces 12, each cut spring segment retains at least one complete set of groove portions 22, thereby ensuring that the cut segments can still be effectively spliced ​​through the insertion of the boss portion 21 and the groove portion 22. In addition, the T-slot structure of the groove portion 22 is located inside the base plate 11 during the cutting process, and its cavity structure is not easily deformed by external cutting forces, further improving the reliability of the interface.

[0031] In one possible implementation, the sidewalls of each of the protrusions 21 are fitted with elastic conductive strips 41, and the inner wall of the recess 22 is provided with silver-plated contacts 42. When the protrusion 21 is inserted into the recess 22, the elastic conductive strips 41 and the silver-plated contacts 42 form surface contact. Specifically, each protrusion 21 has longitudinal slots on its sidewalls, within which a strip-shaped elastic conductive strip 41 is embedded. This conductive strip is made of beryllium copper alloy and has a wavy, raised structure. Correspondingly arranged longitudinal silver-plated copper contacts are provided on the inner walls of the recess 22, with the contact surfaces having arc-shaped protrusions. When the protrusion 21 is inserted into the recess 22, the elastic conductive strips 41 on both sides of the protrusion 21 undergo elastic deformation under compression, and their wavy protrusions form multi-point surface contact with the silver-plated contacts 42 on the inner wall of the recess 22. This not only achieves mechanical connection but also establishes a continuous conductive path, significantly improving electromagnetic shielding effectiveness.

[0032] In one possible implementation, the depth of the groove 22 is greater than the height of the boss 21, and the inner wall of the groove 22 is provided with a stepped limiting flange. When the boss 21 is fully inserted, the limiting flange abuts against the end face of the boss 21, keeping the elastic conductive strip 41 in a compressed contact state with the silver-plated contact 42. Specifically, the depth of the groove 22 is designed to be approximately 1.2 times the height of the boss 21, and stepped limiting flanges are symmetrically arranged on both sides of the inner wall of the groove 22. The distance between the flange and the groove opening is equal to the height of the boss 21. When the boss 21 is fully inserted into the groove 22, the end face of the boss 21 and the limiting flange form a mechanical stop. The inclined surface design of the stepped limiting flange facilitates insertion guidance, while its vertical surface ensures precise positioning.

[0033] In one possible implementation, the substrate 11 is further provided with a plurality of fixing holes 5 at equal intervals for fixing the substrate 11. Specifically, the substrate 11 has a plurality of fixing holes 5 at equal intervals along its length. Each fixing hole 5 is a countersunk hole structure, and the hole position is located at the center of the substrate 11 between two adjacent C-shaped spring clips 12. The diameter of the fixing hole 5 is slightly larger than the standard screw shank diameter, and an annular groove is provided around the hole to accommodate a sealing washer. During installation, the substrate 11 can be fixed to the door and window frame with stainless steel self-tapping screws, and the countersunk design ensures that the screw head does not protrude from the surface of the substrate 11.

[0034] The C-type beryllium copper spring sheet of this application is mainly used for sealing the gaps in doors and windows of electromagnetic shielding rooms. It achieves flexible assembly in both horizontal and vertical directions through splicing structure 2 and rotating transition structure 3, and is especially suitable for sealing the opposite corners of the sides and bottom of the shielding door.

[0035] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing 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, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0036] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A C-shaped beryllium copper spring that is easy to assemble, characterized in that, include: The reed body includes a base plate and multiple C-shaped springs arranged and fixed along its length. The splicing structure includes at least one set of bosses and one set of matching grooves at the end of the film. and A rotating adapter structure is provided at one end of the substrate, including a hinge interface formed at the end of the substrate and an adapter plate hinged to the hinge interface via a rotating shaft. The adapter plate can rotate around the rotating shaft between a horizontal position and a vertical position, and the boss is provided on the end face of the adapter plate. The two adjacent reed bodies are horizontally spliced ​​by embedding the boss into the groove, or by rotating the adapter plate of the rotary adapter structure and inserting the boss at its end into the groove of another reed body to achieve non-planar angle splicing.

2. The easily assembled C-shaped beryllium copper spring according to claim 1, characterized in that, The groove portion is provided in multiple sets, and the position of each set of groove portions corresponds to the installation position of a C-shaped spring piece.

3. The easily assembled C-type beryllium copper spring according to claim 1, characterized in that, Each of the protrusions has an elastic conductive strip embedded in its sidewall, and the inner wall of the groove is provided with a silver-plated contact. When the protrusion is inserted into the groove, the elastic conductive strip and the silver-plated contact form a surface contact.

4. The easily assembled C-shaped beryllium copper spring according to claim 3, characterized in that, The depth of the groove is greater than the height of the boss, and the inner wall of the groove is provided with a stepped limiting flange; when the boss is fully inserted, the limiting flange abuts against the end face of the boss, so that the elastic conductive strip and the silver-plated contact are kept in a compressed contact state.

5. The easily assembled C-type beryllium copper spring according to any one of claims 1 to 4, characterized in that, The substrate is also provided with several fixing holes at equal intervals for fixing the substrate.

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