A duplex antenna connector equal force synchronous installation device
Patent Information
- Application Number
- CN202611206218.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-08-10
- Publication Date
- 2026-10-09
AI Technical Summary
然而,这种逐个锁紧的安装方式存在明显缺陷:由于先后锁紧次序不同,连接器在安装过程中容易发生倾斜,导致连接器的接地台阶与腔体接地不良
1.通过设置均力同步拧紧机构,利用主动齿轮同时带动多个从动齿轮旋转,使所有连接器固定螺钉同步锁紧。该设计将单一的扭力经过齿轮传动变位为多点扭力,确保各螺钉在安装过程中受力均匀。有效避免了因逐个锁紧导致的连接器倾斜和接地不良问题,大幅提高了产品的一致性和互调稳定性。
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Figure CN122876293A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of communication equipment assembly technology, and in particular to a force-equalizing synchronous installation device for duplexer antenna connectors. Background Technology
[0002] A duplexer (also known as an antenna combiner) is a bidirectional three-terminal filter widely used in mobile communication base stations, radio frequency communication systems, and other fields. Its main functions are to couple weak electromagnetic wave signals received by the antenna into the system and to feed larger transmission power to the antenna for transmission. Signal transmission between the duplexer and the antenna system is achieved through a connector, and the installation quality of the connector directly affects the intermodulation stability and signal transmission reliability of the communication system.
[0003] Currently, the installation of duplexer antenna connectors mainly employs a method of tightening screws one by one, with operators using an electric screwdriver to sequentially tighten multiple fixing screws around the connector. However, this method has a significant drawback: due to the different tightening order, the connector is prone to tilting during installation, leading to poor grounding of the connector's grounding step and the cavity. To overcome this problem, operators typically need to manually control the tightening amount of the first screw and then control the parallelism between the connector and the cavity by tightening diagonally. This requires a high level of operator skill, resulting in inconsistent performance in large-scale production and severely impacting the stability of product intermodulation indicators.
[0004] In addition, the existing installation devices lack reliable workpiece fixing structures and height adjustment functions, making it difficult to adapt to the operational needs of duplexers of different sizes and different installation heights, resulting in inconvenient operation and low efficiency.
[0005] To address the aforementioned problems, this invention provides a force-equalizing synchronous installation device for duplexer antenna connectors. Summary of the Invention
[0006] To achieve the above objectives, the present invention provides the following technical solution: A force-equalizing synchronous mounting device for a duplexer antenna connector includes a support frame, mounting brackets on the left and right sides of the bottom of the support frame, a support component on the top of the support frame, an adjustment component fixedly connected to the support component on the top of the support frame, and a clamping component on the top of the support component. The support assembly includes columns, which are arranged in a rectangular array on the top of the support frame. Guide sleeves extending to the top of each column are movably installed on its outer side. A support plate is fixedly installed between the tops of the guide sleeves. A number of mounting holes arranged in an equidistant array are fixedly installed on the top of the support plate. A force-equalizing synchronous tightening mechanism is provided above the clamping assembly. The force-equalizing synchronous tightening mechanism includes a driving gear and at least two driven gears driven by the driving gear. The bottom of the driven gear is provided with an adapter structure that matches the connector fixing screw.
[0007] As a preferred embodiment of the present invention, the adjusting component includes two fixing blocks, which are fixedly installed on the top of the support frame. A bidirectional lead screw is rotatably installed between the two fixing blocks. Two push blocks are threaded on the outer side of the bidirectional lead screw. Connecting blocks are fixedly installed on both the left and right sides of the bottom of the support plate. Two inclined push blocks are rotatably installed on the top of the push blocks and are rotatably connected to the connecting blocks.
[0008] In a preferred embodiment of the present invention, the clamping assembly includes two fixing plates that are movably mounted on the top of a support plate. Two locking studs that are threaded to the mounting holes are threaded onto the inner side of each fixing plate. Threaded rods that penetrate to the inner side of each fixing plate are threaded onto the opposite sides of each of the two fixing plates. Clamping plates are movably mounted on the opposite sides of each of the two threaded rods.
[0009] As a preferred embodiment of the present invention, the force-equalizing synchronous tightening mechanism further includes an upper cover and a lower cover that cooperate to form a housing, the driving gear and the driven gear are installed in the housing, and the gear shafts of the driving gear and the driven gear extend out of the housing.
[0010] As a preferred embodiment of the present invention, the housing is provided with a cavity adapted to the shape of the driving gear and the driven gear, and the upper cover and the lower cover are fixed together by fastening screws.
[0011] In a preferred embodiment of the present invention, the bidirectional lead screw passes through the fixing block and is fixedly connected to the first handwheel.
[0012] As a preferred embodiment of the present invention, a guide rod located on both sides of the bidirectional lead screw and passing through the push block is fixedly installed between the two fixed blocks.
[0013] As a preferred embodiment of the present invention, both the mounting bracket and the fixing plate are designed with an L-shaped structure, the locking stud is adapted to the mounting hole, one end of the threaded rod is fixedly connected to a second handwheel, and guide posts penetrating the fixing plate are fixedly installed on the opposite sides of the two clamping plates.
[0014] Beneficial effects Compared with the prior art, the beneficial effects of the present invention are as follows: 1. By incorporating a force-equalizing synchronous tightening mechanism, a driving gear simultaneously rotates multiple driven gears, ensuring that all connector fixing screws are tightened synchronously. This design transforms a single torque into multi-point torque through gear transmission, ensuring uniform force on each screw during installation. This effectively avoids connector tilting and poor grounding issues caused by tightening screws one by one, significantly improving product consistency and intermodulation stability.
[0015] 2. By setting up an adjustment component and utilizing the linkage structure of the bidirectional lead screw and the inclined push block, the rotational motion can be converted into the smooth lifting and lowering of the support plate, achieving effective adjustment of the support height to adapt to the operational needs of duplexers of different sizes and different installation heights. Meanwhile, the columns are distributed in a rectangular array at the top of the support frame, and together with the guide sleeve design, provide a stable vertical guiding foundation for the support plate.
[0016] 3. By setting up the clamping assembly, the L-shaped fixing plate and the locking stud can be quickly fixed in the designated position of the support plate. The design of the threaded rod driving the clamping plate, combined with the limiting function of the guide post, can adapt to the clamping needs of duplexers of different shapes and sizes, and effectively prevent the workpiece from shifting during the installation process.
[0017] 4. The uniform force synchronous installation method only requires adjusting the torque. Operators do not need to master complex diagonal locking techniques, which greatly reduces the skill requirements of operators. It can maintain a high degree of consistency in large-scale production, reduce assembly time, and reduce product rework rate. Attached Figure Description
[0018] Figure 1 A schematic diagram of the main structure of a force-equalizing synchronous mounting device for a duplexer antenna connector provided by the present invention; Figure 2 A perspective side view of the main body structure of a force-equalizing synchronous mounting device for a duplexer antenna connector provided by the present invention; Figure 3 A perspective view of the adjustment component structure of a force-equalizing synchronous mounting device for a duplexer antenna connector provided by the present invention; Figure 4 This invention provides a perspective view of the clamping assembly structure of a force-equalizing synchronous mounting device for a duplexer antenna connector.
[0019] Legend: 1. Support frame; 2. Mounting frame; 3. Support assembly; 31. Column; 32. Guide sleeve; 33. Support plate; 34. Mounting hole; 4. Adjustment assembly; 41. Fixing block; 42. Two-way lead screw; 421. First handwheel; 43. Push block; 431. Guide rod; 44. Connecting block; 45. Inclined push block; 5. Clamping assembly; 51. Fixing plate; 52. Locking stud; 53. Threaded rod; 531. Second handwheel; 54. Clamping plate; 541. Guide column; 6. Uniform force synchronous tightening mechanism; 61. Driving gear; 62. Driven gear; 63. Upper cover; 64. Lower cover; 65. Gear shaft. Detailed Implementation
[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.
[0021] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
[0023] Example like Figures 1 to 4 As shown, the present invention provides a technical solution: a force-equalizing synchronous installation device for a duplexer antenna connector, including a support frame 1, which serves as the basic load-bearing structure of the device. Mounting brackets 2 are fixedly installed on both the left and right sides of the bottom of the support frame 1 for installation and connection with the operating table or the equipment body, thereby improving the overall stability of the structure.
[0024] A support assembly 3 is fixedly installed on the top of the support frame 1. The support assembly 3 includes several columns 31 arranged in a rectangular array on the top of the support frame 1. Guide sleeves 32 extending to the top of each column 31 are movably installed on its outer side. A support plate 33 is fixedly installed between the tops of the guide sleeves 32. A number of mounting holes 34 arranged in an equidistant array are fixedly installed on the top of the support plate 33. The rectangular array of columns 31 on the top of the support frame 1, together with the design of the guide sleeves 32, provides a stable vertical guiding foundation for the support plate 33. The equidistant array of mounting holes 34 provides flexible positions for subsequent fixing operations.
[0025] An adjusting assembly 4, which is fixedly connected to the supporting assembly 3, is fixedly installed on the top of the support frame 1. The adjusting assembly 4 includes two fixed blocks 41, both fixedly installed on the top of the support frame 1. A bidirectional lead screw 42 is rotatably mounted between the two fixed blocks 41, passing through the fixed blocks 41 and fixedly connected to a first handwheel 421. Two push blocks 43 are threaded onto the outer side of the bidirectional lead screw 42. Guide rods 431, located on both sides of the bidirectional lead screw 42 and passing through the push blocks 43, are fixedly installed between the two fixed blocks 41 to restrict the push blocks 43 to move only axially and prevent offset. Connecting blocks 44 are fixedly installed on both the left and right sides of the bottom of the support plate 33. Two inclined push blocks 45, rotatably connected to the connecting blocks 44, are rotatably mounted on the top of the push blocks 43. By setting the adjusting assembly 4 and utilizing the linkage structure of the bidirectional lead screw 42 and the inclined push blocks 45, the rotational motion can be converted into the smooth lifting and lowering of the support plate 33, achieving effective adjustment of the support height and adapting to the operational needs of different sized duplexers and different installation heights.
[0026] A clamping assembly 5 is movably mounted on the top of the support assembly 3. The clamping assembly 5 includes two fixing plates 51, movably mounted on the top of the support plate 33. Both the mounting bracket 2 and the fixing plates 51 are L-shaped. Two locking studs 52, threaded into mounting holes 34, are threaded onto the inner side of each fixing plate 51. Threaded rods 53 are threaded through the inner sides of each fixing plate 51, with a second handwheel 531 fixedly connected to one end of each threaded rod 53. Clamping plates 54 are movably mounted on the opposite sides of each clamping plate 54, with guide posts 541 fixedly mounted through the fixing plates 51 on opposite sides of each clamping plate 54. These guide posts 541 restrict the clamping plates 54 to move linearly only in the axial direction, ensuring a smooth clamping process. By setting the clamping assembly 5, the L-shaped fixing plate 51 and the locking stud 52 can be quickly fixed in the designated position of the support plate 33. The design of the threaded rod 53 driving the clamping plate 54, combined with the limiting function of the guide post 541, can adapt to the clamping needs of duplexers of different shapes and sizes.
[0027] A force-equalizing synchronous tightening mechanism 6 is provided above the clamping assembly 5. The force-equalizing synchronous tightening mechanism 6 includes a driving gear 61 and at least two driven gears 62 driven by the driving gear 61. The bottom of each driven gear 62 has an adapter structure that matches the connector fixing screws. The force-equalizing synchronous tightening mechanism 6 also includes an upper cover 63 and a lower cover 64 that cooperate to form a housing. The driving gear 61 and driven gears 62 are installed inside the housing, and the gear shafts 65 of the driving gear 61 and driven gears 62 extend from the housing. The housing has cavities adapted to the shapes of the driving gear 61 and driven gears 62. The upper cover 63 and lower cover 64 are fixed together by fastening screws. By setting up the force-equalizing synchronous tightening mechanism 6, the driving gear 61 simultaneously drives multiple driven gears 62 to rotate, so that all connector fixing screws are tightened synchronously. This design transforms a single torque into multi-point torque through gear transmission, ensuring that each screw is subjected to uniform force during installation, effectively avoiding connector tilting and poor grounding problems caused by tightening one screw at a time.
[0028] Workflow of this invention: Step one: The device is installed on the operating station via the mounting bracket 2, and then the support height is adjusted via the adjusting component 4. Rotating the first handwheel 421 causes the bidirectional lead screw 42 to rotate between the fixed blocks 41. Since the pushing blocks 43 on both sides of the bidirectional lead screw 42 engage with threads of different directions, the pushing blocks 43 move in opposite directions along the guide rod 431 that passes through the fixed blocks 41. The inclined push block 45 at the top of the pushing block 43 rotates accordingly, and through its rotational connection with the bottom connecting block 44 of the support plate 33, the horizontal thrust is converted into a vertical lifting force on the support plate 33, causing the support plate 33 to move smoothly up and down along the guide sleeve 32 on the outside of the column 31 until the desired support height is reached.
[0029] Step two: Place the duplexer on top of the support plate 33, and place the two L-shaped fixing plates 51 on both sides of the duplexer. Align the locking studs 52 with the mounting holes 34 on the support plate 33, and rotate the locking studs 52 to thread them into the mounting holes 34, thereby fixing the fixing plates 51 in the designated positions on the support plate 33. Turn the second handwheel 531 to drive the threaded rod 53 to rotate. The threaded rod 53 drives the clamping plate 54 to move along the guide post 541 on the back side towards the duplexer until the clamping plate 54 is in close contact with the duplexer to complete the clamping.
[0030] Step 3: Place the uniform force tightening mechanism 6 above the connector, aligning the adapter structures at the bottom of each driven gear 62 with the respective fixing screws around the connector. Rotate the gear shaft 65 of the driving gear 61, which simultaneously drives all driven gears 62 to rotate, ensuring all fixing screws are tightened synchronously and evenly. Throughout the installation process, all screws experience consistent force, effectively preventing connector tilting and poor grounding, thus guaranteeing installation quality.
[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A force-equalizing synchronous mounting device for a duplexer antenna connector, comprising a support frame (1), wherein mounting brackets (2) are provided on both the left and right sides of the bottom of the support frame (1), characterized in that: The support frame (1) is provided with a support component (3) at the top, and an adjustment component (4) is fixedly connected to the support component (3) at the top of the support frame (1). A clamping component (5) is provided at the top of the support component (3), and a uniform force synchronous tightening mechanism (6) is provided above the clamping component (5). The support assembly (3) includes columns (31), and the number of columns (31) is several and distributed in a rectangular array on the top of the support frame (1). Guide sleeves (32) extending to the top of the columns (31) are movably installed on the outer side. A support plate (33) is fixedly installed between the tops of the several guide sleeves (32). A number of mounting holes (34) distributed in an equidistant array are fixedly installed on the top of the support plate (33). The uniform force synchronous tightening mechanism (6) includes a drive gear (61) and at least two driven gears (62) driven by the drive gear (61). The bottom of the driven gear (62) is provided with an adapter structure that matches the connector fixing screw.
2. The force-equalizing synchronous installation device for a duplexer antenna connector according to claim 1, characterized in that: The adjustment component (4) includes two fixed blocks (41) which are fixedly installed on the top of the support frame (1). A two-way screw (42) is rotatably installed between the two fixed blocks (41). Two push blocks (43) are threaded on the outer side of the two-way screw (42). Connecting blocks (44) are fixedly installed on both the left and right sides of the bottom of the support plate (33). Two inclined push blocks (45) are rotatably installed on the top of the push blocks (43) and are rotatably connected to the connecting blocks (44).
3. The force-equalizing synchronous installation device for a duplexer antenna connector according to claim 1, characterized in that: The clamping assembly (5) includes a fixing plate (51), two fixing plates (51) are movably mounted on the top of the support plate (33), two locking studs (52) are threaded on the inner side of the fixing plate (51) and threadedly connected to the mounting hole (34), threaded rods (53) are threaded on the opposite sides of the two fixing plates (51) and clamping plates (54) are movably mounted on the opposite sides of the two threaded rods (53).
4. The force-equalizing synchronous installation device for a duplexer antenna connector according to claim 1, characterized in that: The uniform force synchronous tightening mechanism (6) also includes an upper cover (63) and a lower cover (64) that cooperate to form a housing. The driving gear (61) and the driven gear (62) are installed inside the housing, and the gear shafts (65) of the driving gear (61) and the driven gear (62) extend out of the housing.
5. The force-equalizing synchronous installation device for a duplexer antenna connector according to claim 4, characterized in that: The housing has a cavity adapted to the shape of the driving gear (61) and driven gear (62), and the upper cover (63) and lower cover (64) are fixed together by fastening screws.
6. The force-equalizing synchronous installation device for a duplexer antenna connector according to claim 2, characterized in that: The bidirectional lead screw (42) passes through the fixed block (41) and is fixedly connected to the first handwheel (421).
7. The force-equalizing synchronous installation device for a duplexer antenna connector according to claim 2, characterized in that: A guide rod (431) located on both sides of the bidirectional lead screw (42) and passing through the push block (43) is fixedly installed between the two fixed blocks (41).
8. The force-equalizing synchronous installation device for a duplexer antenna connector according to claim 3, characterized in that: The mounting bracket (2) and the fixing plate (51) are both designed with an L-shaped structure. The locking stud (52) is adapted to the mounting hole (34). One end of the threaded rod (53) is fixedly connected to a second handwheel (531). Guide posts (541) that penetrate the fixing plate (51) are fixedly installed on the opposite sides of the two clamping plates (54).