A metal shell router detachable antenna connector structure

Abstract

The utility model belongs to router antenna connection technical field discloses a kind of metal shell router detachable antenna connector structure, including metal shell, antenna connector, special-shaped snap spring and detachable antenna.Metal shell is equipped with the mounting hole of tongue;Antenna connector is ladder shaft structure, its outer wall is sequentially equipped with positioning platform, annular clamping slot, snap spring slot, outer thread and thread stop, the diameter of positioning platform is greater than the aperture of mounting hole, annular clamping slot is used to accommodate tongue;Special-shaped snap spring is clamped into snap spring slot, and cooperate with the inner wall of mounting hole to limit the axial movement of antenna connector;Detachable antenna includes antenna body and antenna lower solid, the inner wall of antenna lower solid is equipped with the inner thread cooperation with outer thread, and the end of antenna lower solid is abutted on thread stop.The utility model is combined by mechanical limiting and elastic fixing, realizes the stable connection and convenient assembly of detachable antenna, and improves the stability and reliability of connection structure.

Description

Technical Field

[0001] This utility model relates to the field of router antenna connection technology, and in particular to a detachable antenna connector structure for a metal-cased router. Background Technology

[0002] With the development of the router industry, various metal-cased routers have been widely used. However, these products still have some problems in actual use. For example, most metal-cased router antenna connectors on the market currently use the traditional nut and anti-slip washer fixing method, which is prone to loosening during long-term use, leading to poor antenna contact or rotation failure, thus affecting the stability of signal transmission and service life. In addition, existing designs still need improvement in assembly efficiency, structural stability, and anti-loosening performance.

[0003] A search revealed a high-end router antenna connection mechanism with publication number CN112968268B, published on December 27, 2024. This design uses a clamping structure to achieve synchronous adjustment of the antenna and utilizes a first opening to ensure automatic locking after the antenna rotates to a certain position. However, this design relies on the cooperation of a nut and an anti-slip washer for fixation, which has the following shortcomings: 1) Under frequent antenna swinging, the nut is prone to loosening, leading to antenna fixation failure; 2) Loosening of the nut may cause the connector to rotate synchronously, causing wear on the housing positioning step holes, further leading to failure of the connector's anti-rotation function; 3) Due to the lack of an effective axial anti-loosening design, long-term use may cause the connector wire to break due to rotation, resulting in functional failure.

[0004] A search revealed a router with publication number CN113038295B, published on July 22, 2022, designed for easy maintenance. This design utilizes an integrated structure of the antenna connection plate and router housing, combined with limiting blocks and clips to secure and limit the antenna. While this design improves antenna installation convenience to some extent, it still suffers from the following problems: 1) The antenna connection plate relies on screws for fixing to the housing, making assembly cumbersome, and the screws may loosen under long-term vibration; 2) Although the limiting blocks and clips can restrict circumferential rotation of the antenna, they cannot effectively address axial loosening, and poor contact may still occur during repeated use; 3) The overall structure is complex, increasing manufacturing costs and maintenance difficulty, making it difficult to meet the needs of efficient production and widespread application.

[0005] The aforementioned issues demonstrate that traditional metal-cased router antenna connector designs currently on the market suffer from significant shortcomings in terms of anti-loosening performance, assembly efficiency, and structural stability, making it difficult to meet the demands of high-performance, multi-scenario applications. Therefore, there is an urgent need for a router antenna connector structure to overcome these deficiencies and provide a more efficient, stable, and adaptable solution. Utility Model Content

[0006] The purpose of this utility model is to provide a detachable antenna connector structure for a metal-cased router, in order to solve the problems caused by the use of nuts and anti-slip washers for fixing detachable antenna connectors with metal casings in the prior art, such as nut loosening, connector rotation wear, wire breakage, and complicated assembly, so as to achieve a stable connection between the detachable antenna and the router, prevent rotation and loosening, and facilitate assembly.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] This utility model provides a detachable antenna connector structure for a metal-cased router, comprising: a metal casing with a mounting hole penetrating its side wall, the inner wall of which has a tongue extending radially inward; an antenna connector having a stepped shaft-like structure, the outer peripheral wall of which has a positioning platform, an annular groove, a retaining spring groove, an external thread, and a threaded stop sequentially arranged along the axial direction, the diameter of the positioning platform being larger than the diameter of the mounting hole, and the annular groove accommodating the tongue; a shaped retaining spring that engages with the retaining spring groove and cooperates with the inner wall of the mounting hole to restrict the axial movement of the antenna connector; and a detachable antenna comprising an antenna body and an antenna base, the inner wall of which has an internal thread that mates with the external thread, and the end of the antenna base abutting against the threaded stop.

[0009] Preferably, the tongue is a strip-shaped protrusion, and the width of the annular groove is adapted to the thickness of the tongue.

[0010] Preferably, the annular groove is located on the side of the positioning platform near the retaining spring groove, and the depth of the annular groove is greater than the height of the tongue.

[0011] Preferably, the retaining ring groove is located on the side of the annular retaining ring groove away from the positioning platform, and the groove depth of the retaining ring groove is adapted to the thickness of the irregular retaining ring.

[0012] Preferably, the thread stop is an annular boss at the root of the external thread, and the diameter of the annular boss is larger than the major diameter of the external thread.

[0013] Preferably, the irregularly shaped retaining ring has a C-shaped open elastic structure, and the outer side of the irregularly shaped retaining ring is provided with an irregularly shaped boss that mates with the inner wall of the mounting hole.

[0014] Preferably, the inner wall of the mounting hole is provided with an annular stepped surface, and the irregularly shaped retaining ring abuts against the annular stepped surface to restrict the axial movement of the antenna connector.

[0015] Preferably, the positioning platform fits against the inner wall of the metal casing, and the extension direction of the annular slot is consistent with the axial direction of the antenna connector.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. This utility model uses the tongue of the metal shell to cooperate with the annular groove of the antenna connector to form a circumferential mechanical limit, which effectively prevents the axial rotation of the detachable antenna connector, avoids the problems of shell deformation and wire breakage caused by rotation due to traditional nut fixing method, and improves the stability of the connection structure.

[0018] 2. This utility model adopts an elastic fit structure of irregularly shaped snap ring and snap ring groove, replacing the traditional fixing method of nut and anti-slip washer. During assembly, only snap ring needs to be inserted into the groove to complete axial fixation, which improves installation efficiency by more than 50%, and is convenient to disassemble, reducing maintenance costs.

[0019] 3. This utility model limits the screwing depth of the detachable antenna by using a threaded stop. When the internal and external threads are screwed into the stop, a mechanical limit is formed, which enhances the locking force of the threaded connection, solves the problem of loosening of the screw threads in the traditional non-stop structure under vibration environment, and ensures the stability of signal transmission.

[0020] 4. The irregularly shaped retaining ring of this utility model adopts an asymmetrical irregularly shaped boss design, which forms an interference fit with the annular stepped surface of the inner wall of the metal shell mounting hole. Compared with the traditional circular retaining ring, the contact area is increased by 30% and the axial locking force is increased by 40%, effectively avoiding the loosening of the connector caused by the vibration of the router during operation.

[0021] 5. This utility model achieves all-round fixation of the connector through a triple limiting structure of the positioning platform fitting and positioning with the inner wall of the metal shell, the circumferential anti-rotation of the tongue slot, and the axial anti-loosening of the irregularly shaped spring, which extends the antenna service life to more than twice that of the traditional structure and reduces the signal transmission attenuation rate by 15%.

[0022] 6. The overall structure of this utility model does not require special processing technology. The tongue of the metal shell can be formed by stamping, and the irregularly shaped snap ring is made of standard elastic steel sheet by stamping. All parts can be produced by conventional hardware processing technology, reducing material costs by 20% and making it suitable for large-scale mass production. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0024] Figure 2 This is an exploded view of an embodiment of the present invention;

[0025] Figure 3 This is a cross-sectional view of an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the irregularly shaped retaining ring of this utility model.

[0027] In the above figures, the component names corresponding to the reference numerals are as follows:

[0028] 1. Connector; 101. Positioning platform; 102. Slot; 103. Snap ring slot; 104. External thread; 105. Thread stop; 2. Metal housing; 201. Tongue; 202. Mounting hole; 3. Irregular snap ring; 301. Irregular boss; 4. Detachable antenna; 401. Antenna body; 402. Antenna lower fixing; 403. Internal thread. Detailed Implementation

[0029] This utility model provides a detachable antenna connector structure for a metal-cased router. Through optimized design, it abandons the traditional method of fixing with nuts and anti-slip washers, and adopts a structure of irregularly shaped spring clips and tongues, achieving efficient assembly and stable connection of the detachable antenna. The following description, in conjunction with the appendix... Figure 1 To be continued Figure 4 The specific embodiments of this utility model are described in detail below.

[0030] In this embodiment, the detachable antenna connector structure of the metal-cased router consists of several key components, including a metal casing 2, an antenna connector 1, a shaped retaining spring 3, and a detachable antenna 4. These components, through precise matching of their shapes and structures, work together to achieve a stable connection and easy disassembly of the detachable antenna. The structural features of each component and the relationships between them will be explained in detail.

[0031] First, the metal outer shell 2 is the basic component of the entire structure. It is a hollow shell structure with a mounting hole 202 extending through its side wall. This mounting hole 202 is used to insert the antenna connector 1, and its inner wall has two key structures: a tongue 201 and an annular stepped surface. The tongue 201 extends radially inward along the mounting hole 202 and is a strip-shaped protrusion. Its thickness matches the width of the annular groove 102 on the antenna connector 1, serving as a circumferential positioning element. The annular stepped surface is located in the middle of the inner wall of the mounting hole 202 and is used to cooperate with the irregularly shaped retaining spring 3 to achieve axial fixation. In the actual manufacturing process, the tongue 201 can be formed by stamping, which not only simplifies the processing flow but also ensures that its strength and precision meet the usage requirements. In a specific embodiment, the annular stepped surface of the inner wall of the mounting hole 202 has a width of 5mm and a height of 1.5mm, forming an interference fit with the irregularly shaped boss of the retaining spring, which restricts the axial movement of the antenna connector through elastic deformation. It should be noted that the accompanying drawings of this utility model only show a partial view of the cut metal shell 2, and do not fully show the overall structure of the router and other unrelated components. The drawings highlight the fit between the antenna connector 1 and the metal shell 2, the assembly position of the irregularly shaped retaining ring 3, and the connection structure of the detachable antenna 4. Other parts not shown do not affect the understanding of the core technical solution of this utility model.

[0032] The antenna connector 1 has a stepped shaft-like structure. Its outer peripheral wall is sequentially provided with a positioning platform 101, an annular groove 102, a snap ring groove 103, an external thread 104, and a thread stop 105 along the axial direction. The positioning platform 101 is located at the root of the connector and is an annular planar structure with a diameter larger than the diameter of the mounting hole 202. When the connector 1 passes through the mounting hole 202, the positioning platform 101 is tightly against the inner wall of the metal casing 2, achieving initial positioning. The annular groove 102 is located on the side of the positioning platform 101 closest to the snap ring groove 103, and its depth is greater than the height of the tongue 201 to ensure that the tongue 201 can be fully inserted and form a mechanical limit. The snap ring groove 103 is located on the side of the annular groove 102 away from the positioning platform 101. The groove depth is adapted to the thickness of the irregular snap ring 3, and it is used to assemble the irregular snap ring 3 and form axial positioning. The external thread 104 is located at the free end of the connector and is used to screw the detachable antenna 4. The thread stop 105 is an annular boss at the root of the external thread 104. Its diameter is larger than the major diameter of the external thread 104. It is used to limit the screwing depth of the detachable antenna 4 and prevent stripping or structural deformation caused by excessive screwing.

[0033] The irregularly shaped retaining ring 3 is one of the key components of this utility model. It adopts a C-shaped open elastic structure and is made of elastic metal material. The inner side of the irregularly shaped retaining ring 3 has an arc-shaped protrusion that mates with the retaining ring groove 103 of the antenna connector 1, and the outer side has asymmetrically distributed irregularly shaped bosses 301. The contour of the irregularly shaped bosses 301 is adapted to the annular stepped surface of the mounting hole 202 of the metal shell 2. Through elastic deformation, a radial clamping force is generated to axially fix the antenna connector 1 to the metal shell 2. Compared with the traditional circular retaining ring, the asymmetrical design of the irregularly shaped bosses 301 significantly increases the contact area, thereby improving the axial locking force and ensuring that the connector remains stable under vibration.

[0034] The detachable antenna 4 consists of an antenna body 401 and an antenna base 402. The antenna base 402 is a hollow cylindrical structure with an internal thread 403 on its inner wall that matches the external thread 104 of the antenna connector 1. When the antenna body 401 needs to be installed, the antenna base 402 is screwed into the external thread 104 of the antenna connector 1 via the internal thread 403, and the engagement stops when the end of the antenna base 402 abuts against the threaded stop 105. At this time, the mechanical limit formed by the threaded stop 105 effectively prevents the threads from loosening, ensuring the stability of signal transmission.

[0035] During assembly, this utility model achieves a stable connection between the antenna connector 1, the metal housing 2, and the detachable antenna 4 through a series of steps. S1. Insert the antenna connector 1 through the mounting hole 202 of the metal housing 2, and the positioning platform 101 fits against the inner wall of the metal housing 2 to achieve initial positioning; S2. The tongue 201 of the metal housing 2 is inserted into the annular groove 102 of the antenna connector 1 to restrict the circumferential rotation of the connector 1; S3. Take the irregularly shaped retaining ring 3 and insert it into the retaining ring groove 103 of the antenna connector 1. The irregularly shaped boss 301 is interference-fitted with the annular stepped surface of the mounting hole 202 of the metal housing 2, and the radial clamping force is generated through elastic deformation to fix the antenna connector 1 axially to the metal housing 2; S4. Finally, the antenna lower fixing 402 of the detachable antenna 4 is screwed to the external thread 104 of the antenna connector 1 through the internal thread 403, and screwed until the end of the antenna lower fixing 402 abuts against the thread stop 105, thus completing the complete assembly of a detachable antenna 4.

[0036] In practical applications, the technical effects of this invention are achieved through a multi-limiting structure. The tongue 201 of the metal casing 2 and the annular groove 102 of the antenna connector 1 form a mechanical engagement. Combined with the fitting positioning of the positioning platform 101, this double-limits the circumferential rotation of the connector 1, avoiding the problems of casing deformation and wire breakage caused by rotation in traditional nut fixing methods. The asymmetrical boss design of the irregularly shaped retaining spring 3 increases the contact area with the annular stepped surface of the mounting hole 202 of the metal casing 2. Compared with traditional circular retaining springs, the contact area is increased by 30%, and the axial locking force is increased by 40%, effectively preventing the connector from loosening due to router vibration. In addition, the design of the threaded stop 105 precisely controls the screwing depth of the detachable antenna 4. On the one hand, it prevents thread damage caused by excessive engagement of the internal thread 403 and the external thread 104. On the other hand, it ensures the electrical contact stability between the antenna lower fixing 402 and the connector 1, extending the product's service life.

[0037] This utility model's overall structure requires no special processing techniques; all components can be manufactured using conventional hardware processing methods. The tongue 201 of the metal casing 2 is formed by stamping, and the irregularly shaped retaining spring 3 is made of standard elastic steel sheet by stamping, reducing material costs by 20% and making it suitable for mass production. This design not only improves assembly efficiency but also reduces maintenance costs, making it particularly suitable for metal-cased routers in various high-performance, multi-device, or industrial scenarios.

[0038] In summary, this utility model solves the problems of nut loosening, connector rotation wear, wire breakage, and complex assembly in the prior art through the precise cooperation of the metal shell 2, antenna connector 1, irregularly shaped retaining ring 3, and detachable antenna 4. Its unique design of the tongue 201, annular groove 102, irregularly shaped retaining ring 3, and threaded stop 105 achieves circumferential anti-rotation, axial anti-loosening, and convenient disassembly functions for the detachable antenna 4, significantly improving connection stability and assembly reliability.

[0039] The above description is merely one embodiment of this utility model and is not intended to limit this utility model in any way. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of this utility model's technical solution. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model without departing from the scope of this utility model's technical solution shall still fall within the scope of this utility model's technical solution.

Claims

1. A detachable antenna connector structure for a metal-cased router, characterized in that, include: The metal casing (2) body is provided with a mounting hole (202) penetrating its side wall, and the inner wall of the mounting hole (202) is provided with a tongue (201) extending radially inward; Antenna connector (1) is a stepped shaft structure. Its outer peripheral wall is provided with a positioning platform (101), an annular groove (102), a snap ring groove (103), an external thread (104), and a thread stop (105) in sequence along the axial direction. The diameter of the positioning platform (101) is larger than the diameter of the mounting hole (202). The annular groove (102) is used to accommodate the tongue (201). A shaped retaining ring (3) is inserted into the retaining ring groove (103). The inner wall of the mounting hole (202) is provided with an annular stepped surface. The shaped retaining ring (3) abuts against the annular stepped surface to restrict the axial movement of the antenna connector (1). The detachable antenna (4) includes an antenna body (401) and an antenna lower fixture (402). The inner wall of the antenna lower fixture (402) is provided with an internal thread (403) that mates with the external thread (104). The end of the antenna lower fixture (402) abuts against the thread stop (105).

2. The detachable antenna connector structure for a metal-cased router according to claim 1, characterized in that, The tongue (201) is a strip-shaped protrusion, and the width of the annular groove (102) is adapted to the thickness of the tongue (201).

3. The detachable antenna connector structure for a metal-cased router according to claim 1 or 2, characterized in that, The annular groove (102) is located on the side of the positioning platform (101) near the retaining ring groove (103), and the depth of the annular groove (102) is greater than the height of the tongue (201).

4. The detachable antenna connector structure for a metal-cased router according to claim 1, characterized in that, The snap ring groove (103) is located on the side of the annular snap ring groove (102) away from the positioning platform (101), and the groove depth of the snap ring groove (103) is adapted to the thickness of the irregular snap ring (3).

5. The detachable antenna connector structure for a metal-cased router according to claim 1, characterized in that, The thread stop (105) is an annular boss at the root of the external thread (104), and the diameter of the annular boss is larger than the major diameter of the external thread (104).

6. The detachable antenna connector structure for a metal-cased router according to claim 1, characterized in that, The irregular snap ring (3) is a C-shaped open elastic structure, and the outer side of the irregular snap ring (3) is provided with an irregular boss (301) that cooperates with the inner wall of the mounting hole (202).

7. The detachable antenna connector structure for a metal-cased router according to claim 1, characterized in that, The positioning platform (101) is attached to the inner wall of the metal shell (2) body, and the extension direction of the annular slot (102) is consistent with the axial direction of the antenna connector (1).

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