An antenna retracting structure of a wireless network card

Abstract

This utility model discloses a telescopic antenna structure for a wireless network card, including an antenna outer shell and an antenna inner shell slidably installed within it. Cylindrical rollers are mounted on both sides of the bottom end of the antenna inner shell, rolling against the inner wall of the outer shell to ensure smooth extension and retraction. A damping element is pressed against the inner wall of the outer shell by the elastic force of a U-shaped spring, providing frictional damping and allowing the antenna to hover at any position. Pressing the operation buttons on both sides of the top end retracts the U-shaped spring, causing the damping element to disengage from the outer shell, thereby releasing the lock for easy adjustment. A limiting structure is provided inside the outer shell to prevent excessive extension and retraction of the antenna. This structure is entirely made of plastic, avoiding interference with electromagnetic signals, and also boasts advantages such as smooth operation, reliable positioning, and convenient assembly.

Description

Technical Field

[0001] This utility model relates to the field of wireless network card technology, specifically to an antenna telescopic structure for a wireless network card. Background Technology

[0002] With the rapid development of wireless communication technology, wireless network cards (NICs), as key components for various electronic devices to access wireless networks, are receiving increasing attention for their performance and structural design. Antennas, as one of the core components of wireless NICs, directly affect the quality of signal reception and transmission. To adapt to the signal strength and directionality requirements of different application scenarios, extendable antenna designs have become a common technical approach. By adjusting the extension length of the antenna, signal reception can be optimized.

[0003] Currently, most common wireless network card antenna telescopic structures on the market employ simple sliding rail or sleeve designs, relying on friction to position and hold the antenna. However, such structures often suffer from poor adjustment feel, unreliable positioning, and a tendency to loosen or jam. Especially under frequent adjustments, traditional structures struggle to simultaneously guarantee smooth telescopic operation and stable hovering performance. Furthermore, while certain metal components in telescopic structures can provide structural strength, they can shield or interfere with electromagnetic signals, affecting antenna performance.

[0004] On the other hand, existing antenna telescopic structures also have shortcomings in terms of assembly technology. Most structures are integrated or complex assembly designs, which makes it difficult to install internal parts (such as damping components and elastic elements), increasing manufacturing and maintenance costs. At the same time, the lack of an effective limiting mechanism may cause the antenna to extend or retract excessively, affecting its service life and signal stability. Utility Model Content

[0005] In view of the above-mentioned shortcomings in the existing technology, the purpose of this utility model is to provide an antenna telescopic structure for a wireless network card, which successfully balances user operation comfort, functional reliability and production and maintenance convenience while ensuring excellent electromagnetic performance.

[0006] The technical solution adopted by this utility model to achieve the above objectives is: an antenna telescopic structure for a wireless network card, comprising an antenna outer shell and an antenna inner shell, wherein the antenna inner shell is slidably installed in the antenna outer shell and extends to the outer top of the antenna outer shell.

[0007] It also includes cylindrical rollers, damping components, U-shaped springs, and operation buttons. Cylindrical rollers and damping components are mounted on both sides of the bottom end of the antenna inner shell. The cylindrical rollers are rotatably mounted to the side wall of the antenna inner shell and maintain a rolling fit with the inner wall of the antenna outer shell. The damping components are slidably mounted to the side wall of the antenna inner shell and maintain contact with the inner wall of the antenna outer shell. The middle section of the U-shaped spring is fixedly mounted to the top end of the antenna inner shell, and both ends of the U-shaped spring extend downwards to the bottom end of the antenna inner shell and are connected to the damping components. The operation buttons are slidably mounted on both sides of the top end of the antenna inner shell, and the operation buttons are fixedly connected to the outer side wall of the U-shaped spring.

[0008] Based on the above technical solutions, in order to ensure that the inner shell of the antenna can stably extend and slide within a specific range of travel within the outer shell of the antenna, the following technical solutions are provided.

[0009] The top and bottom of the antenna housing are respectively provided with an upper limit seat and a lower limit seat, and the bottom of the antenna inner housing is provided with a guide seat arranged between the upper limit seat and the lower limit seat. The guide seat maintains a clearance fit with the inner wall of the antenna housing.

[0010] Based on the above technical solutions, in order to ensure that the cylindrical rollers and damping components can be stably assembled at the bottom side wall of the antenna inner shell, the following technical solutions are provided.

[0011] The bottom inner wall of the antenna inner shell is provided with a mounting base. The cylindrical roller is rotatably mounted in the mounting base and exposed to the outside of the antenna inner shell. The damping element is slidably mounted in the mounting base.

[0012] Based on the above technical solutions, in order to ensure that the damping component can be matched with the U-shaped spring and achieve effective damping, the following technical solutions are provided.

[0013] The damping component includes an elastic rubber pad, a guide post, and a positioning bolt. The elastic rubber pad is nested and installed on the outer end of the guide post and abuts against the inner wall of the antenna housing. The guide post is slidably inserted into the mounting base. Both ends of the U-shaped spring are provided with strip-shaped openings. The positioning bolt passes through the strip-shaped openings and is screwed to the inner end of the guide post.

[0014] Based on the above technical solutions, in order to ensure that the middle section of the U-shaped spring can be stably installed at the top of the antenna inner shell and to ensure the fixed connection between the antenna body and the antenna inner shell, the following technical solutions are provided.

[0015] The antenna inner shell has a mounting shaft at its top end. The middle section of the U-shaped spring is fixed with a connecting seat that is nested and inserted with the mounting shaft. A fastening nut that abuts against the connecting seat is screwed onto the mounting shaft. An assembly groove is provided at the center of the mounting shaft.

[0016] Based on the above technical solutions, in order to ensure that the operation buttons can be stably installed on the U-shaped spring and to adjust the contraction and expansion posture of the U-shaped spring, the following technical solutions are provided.

[0017] A stud is fixed to the outer wall of the U-shaped spring, and an assembly port is provided on the top side wall of the antenna inner shell. The operation button is screwed onto the stud and maintains a clearance fit with the assembly port.

[0018] The beneficial effects of this utility model are: 1. The core components of this telescopic structure, such as the antenna outer shell, antenna inner shell, damping components, U-shaped spring, and operation buttons, are all made of plastic. This fundamentally avoids the shielding and interference of metal materials on electromagnetic wave signals, ensuring the integrity and stability of the antenna when transmitting and receiving signals, and improving the communication quality of the wireless network card.

[0019] 2. By utilizing the rolling action of the cylindrical rollers against the inner wall of the antenna housing, the antenna housing achieves low-damping, smooth telescoping motion, providing users with a comfortable operating feel. Simultaneously, the elastic expansion force of the U-shaped spring continuously pushes the damping component against the inner wall of the antenna housing, providing uniform and sufficient friction. This achieves stable hovering at any position, ensuring that the antenna will not shift due to gravity or slight external forces after adjustment, thus guaranteeing stable signal reception.

[0020] 3. By pressing the operation buttons on both sides, the U-shaped spring can be directly driven to retract, thereby releasing the contact between the damping component and the outer shell, achieving rapid, undamped extension and retraction of the antenna. After releasing the buttons, the structure automatically resets under the action of the U-shaped spring and resumes damping. This design achieves the convenience of "one-button adjustment," and the operation is intuitive, simple, and efficient.

[0021] 4. By setting upper and lower limit seats in conjunction with the guide seat, the extension and retraction of the antenna inner shell is limited to a safe range, effectively preventing accidental detachment or internal structural damage caused by excessive stretching or compression of the antenna, and extending the product's service life.

[0022] 5. Both the outer and inner shells of the antenna adopt a two-section assembly design and are connected by snap-fit. This structure greatly simplifies the installation, debugging and maintenance of complex internal components, and reduces production costs and the difficulty of later maintenance.

[0023] 6. The damping element is connected to the strip-shaped opening at the end of the U-shaped spring via a positioning bolt. This design not only enables the U-shaped spring to effectively drive the damping element, but its strip-shaped opening structure can also effectively compensate for the displacement perpendicular to the axis of the damping element generated when the U-shaped spring deforms, ensuring that the damping element always slides smoothly along its own axis, avoiding jamming, and making the application and release of damping force more linear and reliable. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of one section of the antenna housing; Figure 3 This is a schematic diagram of one section of the antenna inner shell and the structure on which the various components are assembled. Figure 4 A schematic diagram of the structure of the U-shaped spring and the components assembled on it; Figure 5 This is a schematic diagram of the structure of one section of the antenna's inner shell.

[0025] In the diagram: 1 Antenna housing, 11 Upper limit seat, 12 Lower limit seat, 13 Mounting port, 2 Antenna inner housing, 21 Guide seat, 22 Mounting seat, 23 Mounting shaft, 24 Fastening nut, 25 Assembly groove, 26 Assembly port, 3 Cylindrical roller, 4 Damping component, 41 Elastic rubber pad, 42 Guide post, 43 Positioning bolt, 5 U-shaped spring, 51 Strip port, 52 Connecting seat, 53 Stud, 6 Operation button. Detailed Implementation

[0026] 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.

[0027] Please see Figure 1-5 A wireless network card antenna telescopic structure includes an antenna outer shell 1 and an antenna inner shell 2, wherein the antenna inner shell 2 is slidably installed in the antenna outer shell 1 and extends to the outer top of the antenna outer shell 1.

[0028] It also includes cylindrical rollers 3, damping elements 4, U-shaped springs 5, and operation buttons 6. Cylindrical rollers 3 and damping elements 4 are mounted on both sides of the bottom end of the antenna inner shell 2. The cylindrical rollers 3 are rotatably mounted to the side wall of the antenna inner shell 2 and maintain rolling contact with the inner wall of the antenna outer shell 1. The damping elements 4 are slidably mounted to the side wall of the antenna inner shell 2 and maintain contact with the inner wall of the antenna outer shell 1. The middle section of the U-shaped spring 5 is fixedly mounted to the top end of the antenna inner shell 2. Both ends of the U-shaped spring 5 extend downward to the bottom end of the antenna inner shell 2 and are matched and connected with the damping elements 4. Operation buttons 6 are slidably mounted on both sides of the top end of the antenna inner shell 2. The operation buttons 6 are fixedly connected to the outer side wall of the U-shaped spring 5.

[0029] The antenna housing 1, antenna inner housing 2, damping component 4, U-shaped spring 5, operation button 6, and other components in the wireless network card provided in this application are all made of plastic, which can prevent the components from interfering with the transmission of electromagnetic wave signals.

[0030] The inner shell 2 of the antenna can slide stably within the outer shell 1 of the antenna, thereby ensuring that the antenna body assembled in the inner shell 2 and the outer shell 1 can adjust its telescopic posture.

[0031] Two sets of freely rotating cylindrical rollers 3 are mounted on both sides of the inner shell 2 of the antenna. The cylindrical rollers 3 can roll and cooperate with the inner wall of the outer shell 1 of the antenna to ensure that the inner shell 2 of the antenna can slide stably in the outer shell 1 with small damping, so as to ensure a comfortable feel for antenna extension and retraction adjustment.

[0032] The damping element 4 of the antenna inner shell 2 is arranged on two sets of cylindrical rollers 3. The two ends of the U-shaped spring 5 tend to open outward, which can push the damping element 4 to slide outward and fit and press against the inner wall of the antenna outer shell 1 to provide a damping effect, realize the suspension effect of the antenna inner shell 2 at any length of extension and retraction, and ensure that the antenna of the wireless network card can stably receive electromagnetic wave signals.

[0033] By pressing the operation buttons 6 on both sides of the top of the antenna inner shell 2, the two ends of the U-shaped spring 5 can be pushed inward, thereby causing the two sets of damping elements 4 to retract inward and cancel contact with the antenna outer shell 1. At this time, the antenna inner shell 2 can be freely extended and retracted.

[0034] To ensure that the inner shell 2 of the antenna can slide stably within a specific range of travel within the outer shell 1 of the antenna, the following technical solution is provided.

[0035] The top and bottom of the antenna housing 1 are respectively provided with an upper limit seat 11 and a lower limit seat 12. The bottom of the antenna inner housing 2 is provided with a guide seat 21 arranged between the upper limit seat 11 and the lower limit seat 12. The guide seat 21 maintains a clearance fit with the inner wall of the antenna housing 1.

[0036] The guide seat 21 is assembled with the inner wall of the antenna housing 1 by a clearance fit, which can ensure that the antenna inner housing 2 can move freely in the antenna housing 1. The upper limit seat 11 and the lower limit seat 12 can provide a limiting function for the guide seat 21, thereby enabling the antenna inner housing 2 to move stably within the designed stroke range.

[0037] To ensure that the cylindrical roller 3 and the damping component 4 can be stably assembled at the bottom side wall of the antenna inner shell 2, the following technical solution is provided.

[0038] A mounting base 22 is provided on the bottom inner wall of the antenna inner shell 2. The cylindrical roller 3 is rotatably installed in the mounting base 22 and exposed to the outside of the antenna inner shell 2. The damping element 4 is slidably installed in the mounting base 22.

[0039] The mounting base 22 provides support for the installation of the cylindrical roller 3 and the damping component 4, thereby ensuring the stable operation of the cylindrical roller 3 and the damping component 4.

[0040] An installation port 13 is provided at the bottom of the antenna housing 1 to facilitate the assembly of the antenna housing 1 onto the main body of the wireless network card.

[0041] Both the outer shell 1 and the inner shell 2 of the antenna are assembled in two sections. The connection between the two sections is made by snap-fit ​​structure, which facilitates the assembly of cylindrical rollers 3, damping components 4, U-shaped springs 5 ​​and operation buttons 6 in the inner shell 2, and facilitates the assembly of the inner shell 2 in the outer shell 1. It also facilitates the stable assembly and wiring of the antenna body.

[0042] To ensure that the damping component 4 can be matched with the U-shaped spring 5 and achieve effective damping, the following technical solution is provided.

[0043] The damping component 4 includes an elastic rubber pad 41, a guide post 42, and a positioning bolt 43. The elastic rubber pad 41 is nested and installed on the outer end of the guide post 42 and abuts against the inner wall of the antenna housing 1. The guide post 42 is slidably inserted into the mounting base 22. Both ends of the U-shaped spring 5 are provided with strip-shaped openings 51. The positioning bolt 43 passes through the strip-shaped openings 51 and is screwed to the inner end of the guide post 42.

[0044] The guide post 42 can slide stably in the mounting base 22. The elastic rubber pad 41 at the outer end can effectively abut against the antenna housing 1 and apply damping. The positioning bolt 43 at the inner end can match the strip opening 51 on the U-shaped spring 5. When the two ends of the U-shaped spring 5 open or close to each other, it can drive the entire damping element 4 to extend and retract. The U-shaped spring 5 can cope with the displacement perpendicular to the axis of the damping element 4 generated by the U-shaped spring 5 and the damping element 4 when the U-shaped spring 5 changes attitude, thereby ensuring the stable extension and retraction of the damping element 4 along its own axis.

[0045] To ensure that the middle section of the U-shaped spring 5 can be stably installed at the top of the antenna inner shell 2 and to ensure the fixed connection between the antenna body and the antenna inner shell 2, the following technical solution is provided.

[0046] The top of the antenna inner shell 2 is provided with a mounting shaft 23. The middle section of the U-shaped spring 5 is fixed with a connecting seat 52 that is nested and inserted with the mounting shaft 23. A fastening nut 24 that is screwed onto the mounting shaft 23 and abuts against the connecting seat 52 is provided. An assembly groove 25 is provided at the axis of the mounting shaft 23.

[0047] The outer wall of the mounting shaft 23 is threaded, allowing the U-shaped spring 5 with the connecting seat 52 to be inserted into it and positioned by the fastening nut 24, so as to ensure that the U-shaped spring 5 is stably assembled and operated in the antenna inner shell 2. The mounting groove 25 opened at the axis of the mounting shaft 23 allows the antenna body to be stably assembled in it. The fastening nut 24 is also made of plastic material to avoid interference with the reception of electromagnetic wave signals.

[0048] It should be noted that the top designs of the two-section antenna inner shell 2 are different. One section has a complete end cap at the top to ensure that the mounting shaft 23 is stably installed on it, while the other section does not have an end cap at the top. The two sections can be spliced ​​together to form a complete antenna inner shell 2.

[0049] To ensure that the operation button 6 can be stably installed on the U-shaped spring 5 and to adjust the contraction and expansion posture of the U-shaped spring 5, the following technical solution is provided.

[0050] A stud 53 is fixed to the outer wall of the U-shaped spring 5, and an assembly port 26 is opened on the top side wall of the antenna inner shell 2. The operation button 6 is screwed onto the stud 53 and maintains a clearance fit with the assembly port 26.

[0051] The stud 53 allows the operating button 6 to be screwed onto the spring. Pressing the button closes both ends of the U-shaped spring 5, and the spring 5 automatically returns to its original position when the pressure is released. The operating button 6 is installed with a clearance fit to the mounting port 26, which can accommodate radial runout when the operating button 6 presses the U-shaped spring 5.

[0052] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0053] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An antenna telescopic structure for a wireless network card, characterized in that: It includes an antenna outer shell (1) and an antenna inner shell (2), wherein the antenna inner shell (2) is slidably installed in the antenna outer shell (1) and extends to the outer side of the top of the antenna outer shell (1); It also includes cylindrical rollers (3), damping elements (4), U-shaped springs (5), and operation buttons (6). The bottom two sides of the antenna inner shell (2) are equipped with cylindrical rollers (3) and damping elements (4). The cylindrical rollers (3) are rotatably installed on the side wall of the antenna inner shell (2) and maintain rolling contact with the inner wall of the antenna outer shell (1). The damping elements (4) are slidably installed on the side wall of the antenna inner shell (2) and maintain contact with the inner wall of the antenna outer shell (1). The middle section of the U-shaped spring (5) is fixedly installed on the top of the antenna inner shell (2). Both ends of the U-shaped spring (5) extend downward to the bottom of the antenna inner shell (2) and are matched with the damping elements (4). The operation buttons (6) are slidably installed on both sides of the top of the antenna inner shell (2). The operation buttons (6) are fixedly connected to the outer side wall of the U-shaped spring (5).

2. The antenna telescopic structure of a wireless network card according to claim 1, characterized in that: The top and bottom of the antenna housing (1) are respectively provided with an upper limit seat (11) and a lower limit seat (12). The bottom of the antenna inner housing (2) is provided with a guide seat (21) arranged between the upper limit seat (11) and the lower limit seat (12). The guide seat (21) and the inner wall of the antenna housing (1) maintain a clearance fit.

3. The antenna telescopic structure of a wireless network card according to claim 1, characterized in that: The bottom inner wall of the antenna inner shell (2) is provided with a mounting base (22), the cylindrical roller (3) is rotatably installed in the mounting base (22) and exposed to the outside of the antenna inner shell (2), and the damping element (4) is slidably installed in the mounting base (22).

4. The antenna telescopic structure of a wireless network card according to claim 3, characterized in that: The damping component (4) includes an elastic pad (41), a guide post (42), and a positioning bolt (43). The elastic pad (41) is nested and installed on the outer end of the guide post (42) and abuts against the inner wall of the antenna housing (1). The guide post (42) is slidably inserted into the mounting base (22). Both ends of the U-shaped spring (5) are provided with strip-shaped openings (51). The positioning bolt (43) passes through the strip-shaped openings (51) and is screwed to the inner end of the guide post (42).

5. The antenna telescopic structure of a wireless network card according to claim 1, characterized in that: The antenna inner shell (2) is provided with a mounting shaft (23) at the top end. The middle section of the U-shaped spring (5) is fixed with a connecting seat (52) that is nested and inserted with the mounting shaft (23). A fastening nut (24) that is screwed onto the mounting shaft (23) and abuts against the connecting seat (52) is provided. An assembly groove (25) is provided at the center of the mounting shaft (23).

6. The antenna telescopic structure of a wireless network card according to claim 1, characterized in that: The outer wall of the U-shaped spring (5) is fixed with a stud (53), and the top side wall of the antenna inner shell (2) is provided with an assembly port (26). The operation button (6) is screwed onto the stud (53) and maintains a clearance fit with the assembly port (26).

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