Sheet metal module electromagnetic shielding connection device

Abstract

The utility model discloses a kind of electromagnetic shielding connecting devices between sheet metal module, it is related to electromagnetic shielding connecting device technical field.The utility model includes, connecting structure, including mounting nail, the nail head located at the upper end of mounting nail, the screw spring located at the lower end of nail head and sleeved in the outside of mounting nail;Fixed structure, including the installation groove of being arranged in the annular array distribution of the outside of mounting nail, the rotating seat located at the inner wall of installation groove, the rotating shaft rotatably installed in rotating seat interior, the clamping block located at the outer wall of rotating shaft, the torsion spring of being sleeved in the outside of rotating shaft and two ends are connected with clamping block and the inner wall of installation groove respectively;Dismantling structure, including the inner cavity of being arranged in the inside of mounting nail, the ejector pin of being inserted in the inside of inner cavity, the pressing head located at the upper end of ejector pin, the spring located between mounting head and nail head.The utility model is by being provided with fixed structure and dismantling structure, to solve the problem that a large number of screws are installed and time is consumed by using bolt, screw to fix shielding cover on cabinet, disassembly is inconvenient.

Description

Technical Field

[0001] This utility model relates to the technical field of electromagnetic shielding connection devices, and in particular to an electromagnetic shielding connection device between sheet metal modules. Background Technology

[0002] A chassis module is the outer shell of an electronic device. It is usually made of metal sheet through processes such as bending and welding. It has high strength and rigidity, which can protect the internal electronic components from external mechanical damage. At the same time, the chassis module is also an important part of electromagnetic shielding. Its metal material can block the penetration of electromagnetic waves. It is widely used in computers, servers, communication equipment, etc., providing installation space and protection for internal components such as motherboards, power supplies, and hard drives.

[0003] The connection methods for electromagnetic shielding connection devices between sheet metal modules include mechanical connections and conductive connections. Mechanical connections use fasteners such as bolts and screws to fix the sheet metal module and the electromagnetic shielding connection device together. For example, in the connection between a chassis module and a shielding cover module, holes can be drilled at the edge of the module, and then bolts and screws can be used to fix the shielding cover to the chassis. This results in a large number of screws being installed, which is time-consuming, and the disassembly and assembly process requires special tools and is inconvenient. Therefore, those skilled in the art have provided an electromagnetic shielding connection device between sheet metal modules to solve the problems mentioned in the background art. Utility Model Content

[0004] 1. Technical Solution

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to an electromagnetic shielding connection device between sheet metal modules, comprising,

[0007] The connecting structure includes a mounting pin, a pin head located at the upper end of the mounting pin, and a spring located at the lower end of the pin and sleeved on the outside of the mounting pin;

[0008] The fixed structure includes mounting slots arranged in a ring array on the outside of the mounting pins, a rotating seat located on the inner wall of the mounting slots, a rotating shaft rotatably mounted inside the rotating seat, a locking block located on the outer wall of the rotating shaft, and a torsion spring sleeved on the outside of the rotating shaft and connected at both ends to the locking block and the inner wall of the mounting slot, respectively.

[0009] as well as;

[0010] The dismantling structure includes an inner cavity inside the mounting pin, a pin inserted into the inner cavity, a pressing head at the upper end of the pin, and a spring located between the mounting head and the pin head.

[0011] Furthermore, a support ring with a groove-shaped main cross-section is sleeved on the outer side of the lower end of the spring, and a rubber ring is provided at the lower end of the support ring;

[0012] Specifically, the compressive force of the spring is applied to the outer wall of the sheet metal module through the support ring, and the rubber ring directly contacts the sheet metal module, which improves anti-slip performance and avoids wear on the outer wall of the sheet metal module.

[0013] Furthermore, the lower end of the mounting pin has an inwardly recessed chamfer on its outer wall;

[0014] Specifically, the chamfer facilitates the insertion and alignment of the mounting pins, making insertion smoother.

[0015] Furthermore, the lower end of the card block is rotatably equipped with equally spaced ball bearings, and the upper end of the card block is provided with a rubber pad;

[0016] Specifically, the rubber pad fits against the outer wall of the sheet metal module to improve anti-slip properties, while the ball bearings reduce friction and resistance when the block passes through the mounting holes of the sheet metal module, improving the smoothness of passage.

[0017] Furthermore, a limit block is provided on the outer wall of the rotating shaft, and a stop block is provided on the inner wall of the lower end of the mounting groove;

[0018] Specifically, when the shaft rotates, it drives the limit block to rotate. When the limit block passes through the stop, it is blocked by the stop, which restricts the passage of the limit block and limits the rotation radius of the shaft, thus preventing the block from being over-expanded.

[0019] Furthermore, the nail head has a travel hole communicating with the inner cavity, the upper end of the ejector pin slides through the travel hole, and the upper end of the pressing head is provided with anti-slip texture;

[0020] Specifically, the ejector pin located inside the inner cavity slides inside the nail head through the stroke hole, and the anti-slip texture improves the anti-slip performance when the hand presses.

[0021] Furthermore, the inner wall of the cavity is provided with guide rails arranged in a ring array, the outer wall of the ejector pin is provided with a sliding groove that is slidably installed with the guide rails, the lower end of the ejector pin is rotatably installed with a second ball bearing arranged in a ring array, and the outer wall of the rotating shaft is provided with a side rod corresponding to the second ball bearing, one end of the side rod being inclined and the other end being horizontal.

[0022] Specifically, when the ejector pin moves longitudinally, it slides on the outer wall of the guide rail through the groove, which guides the longitudinal movement path of the ejector pin, so that the second ball effectively squeezes the horizontal section of the side rod, and reduces the friction and resistance during squeezing.

[0023] 2. Beneficial effects

[0024] Compared with existing technologies, the advantages of this utility model are:

[0025] In this invention, after the chassis sheet metal modules are connected, mounting pins are inserted into the holes drilled at the edges of the chassis sheet metal modules. During this process, a clamping block is squeezed. The clamping block is supported by a torsion spring. When squeezed, the torsion spring is subjected to a torsional force around the pivot. At the same time, the clamping block is housed in the mounting groove around the pivot. After the clamping block passes through the mounting hole, it unfolds due to the elasticity of the torsion spring itself. During this process, one end of the pin head is squeezed by the spring. After the clamping block passes through the mounting hole, it engages with the opposite end of the mounting hole of the chassis sheet metal module. The spring supports the mounting pin with its own elastic force, compensating for the dimensional difference of the structural components and adapting to the installation of chassis sheet metal modules within a certain range.

[0026] Meanwhile, during disassembly, the compression spring provides travel space for the locking block to rotate. By storing the locking block, the mounting pin can be pulled out from the mounting hole. This achieves convenient and time-saving disassembly and assembly of the chassis sheet metal module and the connection between the chassis module and the shielding cover module without the need for additional installation tools.

[0027] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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 these drawings without creative effort.

[0029] Figure 1 This is a front-view three-dimensional structural diagram of the present invention;

[0030] Figure 2 This is a bottom-view three-dimensional structural diagram of the present invention;

[0031] Figure 3 This is a three-dimensional cross-sectional view of the mounting nail of this utility model;

[0032] Figure 4 This is a front-view three-dimensional structural diagram of the ejector pin of this utility model;

[0033] Figure 5 This is a front-view three-dimensional structural diagram of the card block of this utility model;

[0034] Figure 6 This is a three-dimensional structural diagram of the card block of this utility model viewed from below.

[0035] The attached diagram lists the components represented by each number as follows:

[0036] 100. Connecting structure; 101. Nail head; 102. Spring; 103. Support ring; 104. Chamfer; 105. Mounting nail; 106. Rubber ring;

[0037] 200. Fixed structure; 201. Mounting groove; 202. Locking block; 203. Rubber pad; 204. Rotating shaft; 205. Torsion spring; 206. Rotating seat; 207. Side rod; 208. Ball bearing 1; 209. Stop block; 210. Limiting block;

[0038] 300. Demolition structure; 301. Anti-slip texture; 302. Spring; 303. Press head; 304. Ejector pin; 305. Stroke hole; 306. Inner cavity; 307. Slide groove; 308. Guide rail; 309. Ball bearing 2. Detailed Implementation

[0039] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0040] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0041] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0042] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0043] Example 1

[0044] Please see Figure 1-6 As shown, this embodiment is an electromagnetic shielding connection device between sheet metal modules, including,

[0045] The connecting structure 100 includes a mounting pin 105, a pin head 101 located at the upper end of the mounting pin 105, and a spring 102 located at the lower end of the pin head 101 and sleeved on the outside of the mounting pin 105.

[0046] The fixing structure 200 includes a mounting groove 201 arranged in a ring array on the outside of the mounting pin 105, a rotating seat 206 located on the inner wall of the mounting groove 201, a rotating shaft 204 rotatably mounted inside the rotating seat 206, a locking block 202 located on the outer wall of the rotating shaft 204, and a torsion spring 205 sleeved on the outside of the rotating shaft 204 and connected at both ends to the locking block 202 and the inner wall of the mounting groove 201, respectively.

[0047] as well as;

[0048] The dismantling structure 300 includes an inner cavity 306 opened inside the mounting nail 105, a pin 304 inserted into the inner cavity 306, a pressing head 303 located at the upper end of the pin 304, and a spring 302 located between the mounting head and the nail head 101.

[0049] A support ring 103 with a groove-shaped main cross section is sleeved on the outer side of the lower end of the spring 102, and a rubber ring 106 is provided at the lower end of the support ring 103.

[0050] The lower outer wall of the mounting nail 105 is provided with an inwardly recessed chamfer 104;

[0051] The lower end of the locking block 202 is rotatably fitted with equally spaced ball bearings 208, and the upper end of the locking block 202 is provided with a rubber pad 203.

[0052] A limit block 210 is provided on the outer wall of the rotating shaft 204, and a stop block 209 is provided on the inner wall of the lower end of the mounting groove 201.

[0053] The nail head 101 has a travel hole 305 that communicates with the inner cavity 306. The upper end of the ejector pin 304 slides through the travel hole 305. The upper end of the pressing head 303 is provided with anti-slip texture 301.

[0054] The inner wall of the inner cavity 306 is provided with guide rails 308 arranged in a ring array. The outer wall of the ejector pin 304 is provided with a groove 307 that is slidably installed with the guide rails 308. The lower outer wall of the ejector pin 304 is rotatably mounted with a second ball bearing 309 arranged in a ring array. The outer wall of the rotating shaft 204 is provided with a side rod 207 corresponding to the second ball bearing 309. One end of the side rod 207 is inclined and the other end is horizontal.

[0055] Use of fixed structure 200 and demolition structure 300;

[0056] During installation, the operator holds the nail head 101 and aligns the chamfer 104 at the lower end of the mounting nail 105 with the pre-drilled joint of the sheet metal module. The chamfer 104 structure can automatically guide the insertion angle. As the mounting nail 105 is pushed in, the lower end ball bearing 208 of the locking block 202 first contacts the edge of the mounting hole of the sheet metal module. Under the action of friction, the locking block 202 rotates into the mounting groove 201 around the pivot 204. At this time, the torsion spring 205 is compressed and undergoes torsional deformation, and the locking block 202 is completely housed in the mounting groove 201.

[0057] When the locking block 202 passes through the mounting hole, the torsion spring 205 releases its elastic potential energy to drive the locking block 202 to unfold to the initial angle. At this time, the rubber pad 203 at the upper end of the locking block 202 is tightly attached to the outer wall of the sheet metal module. At the same time, the helical spring 102 undergoes axial compression deformation under the pressure of the nail head 101. Its elastic support force is evenly applied to the surface of the sheet metal module through the support ring 103 and the rubber ring 106, which not only ensures the continuity of electromagnetic shielding, but also achieves adaptive adjustment of the module spacing through the deformation compensation of the rubber ring 106 and the elastic pressure compensation of the helical spring 102.

[0058] During disassembly, pressing the pressing head 303 with one thumb causes the ejector pin 304 to move downwards along the guide rail 308. After the ball bearing 309 contacts the inclined end of the side rod 207, it generates a radial force, pushing the side rod 207 to rotate the shaft 204. The locking block 202 is forced to compress the torsion spring 205 to complete the retraction action. The locking block 202 is completely inside the mounting groove 201. At this time, the elastic potential energy stored in the spring 102 assists the mounting pin 105 to pop out automatically. After releasing the pressing head 303, the spring 302 drives the ejector pin 304 to reset. The elastic unfolding mechanism of the locking block 202 replaces the traditional bolt connection, shortening the disassembly and assembly time and improving the operation efficiency. The dual elastic system of the spring 102 and the locking block 202 forms a dual compensation mechanism, which can adapt to the thickness tolerance of the plate within a certain range and solve the problem of excessively high processing accuracy requirements of traditional fixed connectors.

[0059] Rubber protective components prevent corrosion caused by potential difference from direct metal contact. Compared with traditional screw connection solutions, this device completely eliminates the processes of tapping and tightening, avoiding quality risks such as stripped screws and detached washers. It is especially suitable for server racks that require high-frequency maintenance, effectively solving the needs of electromagnetic shielding and rapid disassembly and assembly.

[0060] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0061] 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 device for electromagnetic shielding of a connection between sheet metal modules, characterized in that: include, The connecting structure (100) includes a mounting pin (105), a pin head (101) located at the upper end of the mounting pin (105), and a spring (102) located at the lower end of the pin head (101) and sleeved on the outside of the mounting pin (105); The fixing structure (200) includes a mounting groove (201) arranged in a ring array on the outside of the mounting pin (105), a rotating seat (206) located on the inner wall of the mounting groove (201), a rotating shaft (204) rotatably mounted inside the rotating seat (206), a locking block (202) located on the outer wall of the rotating shaft (204), and a torsion spring (205) sleeved on the outside of the rotating shaft (204) and connected at both ends to the locking block (202) and the inner wall of the mounting groove (201) respectively. as well as; The dismantling structure (300) includes an inner cavity (306) opened inside the mounting pin (105), a push pin (304) inserted into the inner cavity (306), a pressing head (303) located at the upper end of the push pin (304), and a spring (302) located between the mounting head and the pin head (101).

2. The electromagnetic shielding connection device between sheet metal modules according to claim 1, characterized in that: The lower end of the spring (102) is fitted with a support ring (103) with a groove-shaped main cross section, and a rubber ring (106) is provided at the lower end of the support ring (103).

3. The electromagnetic shielding connection between sheet metal modules according to claim 1, characterized in that: The lower outer wall of the mounting pin (105) is provided with an inwardly recessed chamfer (104).

4. The electromagnetic shielding connection between sheet metal modules of claim 1, wherein: The lower end of the card block (202) is rotatably fitted with equally spaced ball bearings (208), and the upper end of the card block (202) is provided with a rubber pad (203).

5. The electromagnetic shielding connection between sheet metal modules of claim 1, wherein: The outer wall of the rotating shaft (204) is provided with a limit block (210), and the inner wall of the lower end of the mounting groove (201) is provided with a stop block (209).

6. The electromagnetic shielding connection between sheet metal modules of claim 1, wherein: The nail head (101) has a travel hole (305) that communicates with the inner cavity (306), the upper end of the ejector pin (304) slides through the travel hole (305), and the upper end of the pressing head (303) is provided with anti-slip texture (301).

7. The electromagnetic shielding connection between sheet metal modules of claim 1, wherein: The inner wall of the inner cavity (306) is provided with a guide rail (308) arranged in a ring array. The outer wall of the ejector pin (304) is provided with a sliding groove (307) that is slidably installed with the guide rail (308). The lower outer wall of the ejector pin (304) is rotatably installed with a ball bearing (309) arranged in a ring array. The outer wall of the rotating shaft (204) is provided with a side rod (207) corresponding to the ball bearing (309). One end of the side rod (207) is inclined and the other end is horizontal.

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