Fork arm device for fixing antenna forecabin

Abstract

The utility model provides a fork arm device for fixing an antenna forecabin, which comprises two sets of clamping and supporting mechanisms, each set of clamping and supporting mechanism comprises a rotary table connecting plate for supporting a rotary table and a supporting claw fixed with the rotary table connecting plate, and the supporting claw comprises an upper clamping arm and a lower clamping arm which are arranged up and down and are respectively used for fixing the top and the bottom of the antenna forecabin. And the antenna front cabin is clamped between the upper clamping arm and the lower clamping arm. Due to the structural design of the supporting claws, the bending resistance of the whole clamping and supporting mechanism is improved, a key stress area is of a solid structure, a non-stress key area is of a hollowed-out design, the structural reliability of the clamping and supporting mechanism in long-term use is guaranteed, and the design requirement for light weight is met. The clamping table and the clamping groove are matched and positioned, so that the connection stability of the antenna front cabin and the rotary table is ensured, the vibration displacement in a working state is effectively inhibited, and the antenna pointing precision is improved.

Description

Technical Field

[0001] This utility model belongs to the field of antenna equipment fixing technology, specifically relating to a fork arm device for fixing the front compartment of an antenna. Background Technology

[0002] In the design and application of lightweight flat panel antennas, the antenna's front compartment typically needs to be securely connected to a turntable structure to ensure its pointing accuracy and wind resistance during operation. Simultaneously, frequent disassembly is required during storage and transportation to reduce space occupancy and facilitate handling. Therefore, how to ensure connection stability while simultaneously achieving ease of installation and disassembly and lightweight overall structure has become a pressing technical challenge.

[0003] Currently, common fork-arm connection structures mostly use bolt fastening or pin fixing methods. While these provide a certain level of connection strength, they are prone to problems such as thread wear and positioning deviations during frequent disassembly and assembly, affecting long-term reliability. Furthermore, traditional connection mechanisms are often complex and heavy, making it difficult to meet the weight-reduction requirements of lightweight flat panel antennas.

[0004] In related technical fields, such as the patent "A Bicycle Front Fork Arm Feeding and Transfer Device", the conveying efficiency and positioning accuracy of the front fork arm are optimized by setting a first front fork arm feeding mechanism, a second front fork arm feeding mechanism and a transfer mechanism. However, this solution is mainly aimed at the material conveying problem in mass production, and its structural design cannot be directly applied to the fixed scenario of the antenna front compartment. Specifically, the connection of the antenna front compartment needs to meet the following special requirements: (1) maintain high stability in dynamic working environments (such as wind load and vibration); (2) support quick disassembly and assembly and avoid component wear caused by repeated operations; (3) the overall structure needs to be as lightweight as possible to adapt to the portability requirements of the antenna system.

[0005] In summary, existing fork-arm connection solutions struggle to simultaneously meet the stability, convenience, and lightweight requirements of the front compartment of a lightweight flat panel antenna. Therefore, a novel connection structure is urgently needed that can ensure reliable fixation to the turntable while enabling rapid assembly and disassembly and achieving a lightweight design. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of traditional fork arm structures, which cannot achieve a stable connection between the front compartment and the turntable of a lightweight flat panel antenna and require frequent disassembly and assembly, and to provide a fork arm device for fixing the front compartment of an antenna.

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

[0008] A fork arm device for fixing an antenna front compartment, the fork arm device being used to connect to a turntable and an antenna front compartment; the fork arm device includes two vertically arranged clamping and supporting mechanisms.

[0009] Each of the clamping and support mechanisms includes a turntable connecting plate, a claw, a claw connector, a front compartment connector, and a base;

[0010] The turntable connecting plate has a central mounting through hole at its center that matches the pitch axis of the turntable, which is used for positioning and supporting the pitch axis.

[0011] One end of the turntable connecting plate is fixedly connected to the center position of the support claw, and the support claw is arranged parallel to one side of the turntable connecting plate.

[0012] The claw includes a connecting arm and an upper clamping arm and a lower clamping arm symmetrically arranged at both ends of the connecting arm; the ends of the upper clamping arm and the ends of the lower clamping arm have clamping platforms that face each other and are arranged inward.

[0013] Both the upper clamping arm and the lower clamping arm are fixed with claw connectors near the position of the clamping platform on them;

[0014] Two front cabin connectors are respectively disposed at the ends of the upper clamping arm and the lower clamping arm. The front cabin connectors have grooves that can mate with the corresponding clamping platforms. Furthermore, the front cabin connectors are fixedly connected to the claw connectors. Several threaded holes are opened on the plate surface of the front cabin connectors that is parallel to the bottom wall surface of the grooves, for fixing the top and bottom of the antenna front cabins to the upper clamping arm and the lower clamping arm respectively, so as to clamp the antenna front cabins between the upper clamping arm and the lower clamping arm.

[0015] The base is located at the bottom of the lower clamping arm and near the clamping platform on the lower clamping arm. The base is used to provide vertical support when the antenna is in vehicle-mounted use.

[0016] Furthermore, it also includes an anti-disengagement hook. The anti-disengagement hook is fixed to the front end face of the clamping platform of the lower clamping arm, and the side wall of the anti-disengagement hook is in close contact with the side wall of the front compartment connector mounted on the lower clamping arm to prevent the front compartment connector from detaching from the clamping platform of the lower clamping arm due to the weight of the lower part of the antenna front compartment.

[0017] Furthermore, a stop is provided at one end of the central mounting through hole of the turntable connecting plate for positioning and fitting of the pitch axis;

[0018] A round hole is opened on the surface of the turntable connecting plate away from the position of the support claw for installing a GPS support rod.

[0019] Furthermore, the turntable connecting plate has several threaded holes on its end face away from the support claw for fixing the antenna counterweight.

[0020] Furthermore, the claw connector includes two identical clamping blocks. A wedge-shaped groove is provided between one side of the clamping platform and the clamping arm body. The two clamping blocks are symmetrically fixed to both sides of the clamping arm body, and their ends, when joined together, can wrap around the sidewall of the wedge-shaped groove.

[0021] The clamping block has a threaded hole at the end for docking along the length of the fork arm device, for fixing the clamping block to the front cabin connector.

[0022] Furthermore, the front cabin connector includes a base plate and an arc-shaped protrusion located in the middle of the base plate and extending upward. A groove matching the locking platform on the support claw is formed at the top center of the arc-shaped protrusion.

[0023] The base plate has threaded through holes at both ends for fixing the top and bottom of the antenna front compartment to the front compartment connector of the upper clamping arm and the front compartment connector of the lower clamping arm, respectively.

[0024] Furthermore, the card platform has a wedge-shaped structure, and the groove on the front cabin connector is a wedge-shaped groove that matches the card platform.

[0025] Furthermore, the base includes a support structure and an L-shaped structure vertically fixed to the top of the support structure. The sidewall of the L-shaped structure has threaded holes for fixing the L-shaped structure to the lower clamping arm with screws.

[0026] Furthermore, the claw is arched in shape. Both the upper clamping arm and the lower clamping arm include a horizontal arm and an inclined arm. The inclined arm is inclined inward, and its two ends are fixedly connected to the ends of the horizontal arm and the connecting arm, respectively.

[0027] Furthermore, the inclined arm and the connecting arm are arrayed with a plurality of mutually spaced stiffened wall panels.

[0028] The advantages of this utility model are:

[0029] This utility model addresses the problem of securing the front compartment of a lightweight flat panel antenna by providing a fork arm device that combines stable connection, lightweight design, and quick assembly / disassembly. The specific technical advantages are as follows:

[0030] 1. Significantly improved stability

[0031] (1) The claw adopts an arched integral structure, and the width of the connection part with the turntable connecting plate is 125mm, which is nearly twice the width of the claw bending point, greatly enhancing the bending resistance.

[0032] (2) The connection between the upper and lower ends of the support claw and the front compartment adopts a solid structure to avoid the weakening of the strength of key stress parts by the hollow design and to ensure the structural reliability under long-term use.

[0033] (3) The upper and lower ends of the claw are equipped with locking platforms, which precisely match the grooves of the front cabin connector to form a stable limiting structure, effectively suppressing vibration displacement during operation and improving antenna pointing accuracy.

[0034] 2. Outstanding lightweight effect

[0035] (1) The claw and turntable connecting plate adopt an optimized hollow design, removing redundant materials in non-critical stress areas while retaining reinforcing ribs to ensure overall rigidity.

[0036] (2) High-strength aluminum material is selected to further reduce the weight of the fork arm device. The weight of the claw is only 3.09kg, which is 42% lighter than the traditional non-hollow design. The weight of the turntable connecting plate is 6.82kg, which is 76% lighter, significantly improving the portability and transportation efficiency of the antenna.

[0037] 3. Improved ease of disassembly and assembly

[0038] (1) The claws are connected to the turntable connecting plate and the front cabin connecting head with standardized screws, which can be disassembled and assembled without special tools. The operation is simple and avoids the wear problem caused by complex locking mechanisms.

[0039] (2) The pre-positioning design of the bracket on the support claw and the groove on the front cabin connector head allows for quick alignment during installation, reducing adjustment time and making it particularly suitable for transportation and storage scenarios that require frequent disassembly.

[0040] (3) It only takes about 5 minutes to connect the antenna front compartment to the turntable using the fork arm device of this utility model. Attached Figure Description

[0041] Figure 1 This is a perspective view of a fork arm device for fixing the front compartment of an antenna according to the present invention;

[0042] Figure 2 yes Figure 1 The main view;

[0043] Figure 3 This is a schematic diagram of the cooperation between the antenna front compartment fixing fork arm device of this utility model and the antenna front compartment;

[0044] Figure 4 This is a structural schematic diagram of the transfer platform connecting plate of this utility model;

[0045] Figure 5 This is a schematic diagram of the support claw in this utility model;

[0046] Figure 6 yes Figure 5 A partially enlarged schematic diagram of the horizontal arm in the upper and middle clamping arm;

[0047] Figure 7 yes Figure 5 A partially enlarged schematic diagram of the horizontal arm in the lower clamping arm;

[0048] Figure 8 This is a schematic diagram of the clamping block in the claw connector of this utility model;

[0049] Figure 9 This is a structural schematic diagram of the front cabin connector in this utility model.

[0050] Explanation of reference numerals in the attached figures:

[0051] 1-Turntable connecting plate, 101-Center mounting through hole, 102-Round hole, 2-Claw, 201-Connecting arm, 202-Upper clamping arm, 203-Lower clamping arm, 204-Clamping platform, 205-Horizontal arm, 206-Tilt arm, 207-Wedge groove, 3-Claw connector, 4-Front compartment connector, 401-Base plate, 402-Arc-shaped protrusion, 403-Groove, 402-Arc-shaped protrusion, 5-Anti-disengagement hook, 6-Base, 601-Supporting structure, 602-L-shaped structure, 7-Antenna front compartment. Detailed Implementation

[0052] The embodiments of the present invention are described in detail below. These embodiments are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0053] Reference Figures 1-3 To secure the antenna front compartment 7 and the turntable, this embodiment provides a fork arm device for securing the antenna front compartment, including two vertically arranged identical first and second clamping support mechanisms. The two clamping support mechanisms jointly clamp and secure the antenna front compartment 7. Each clamping support mechanism includes a turntable connecting plate 1, a claw 2, a claw connector 3, a front compartment connector 4, an anti-disengagement hook 5, and a base 6. A central mounting through hole 101 is formed in the center of the turntable connecting plate 1, matching the pitch axis of the turntable. One end of the central mounting through hole 101 has a stop for positioning the pitch axis. One end of the turntable connecting plate 1 is fixed to the center position of the claw 2, and the surface of the claw is parallel to the surface of the turntable connecting plate.

[0054] The claw 2 includes a connecting arm 201 and an upper clamping arm 202 and a lower clamping arm 203 symmetrically arranged at both ends of the connecting arm. The ends of the upper clamping arm 202 and the lower clamping arm 203 have inwardly facing locking plates 204. Claw connectors 3 are fixed to both the upper and lower clamping arms near their respective locking plates 204. Two front cabin connectors 4 are respectively located at the ends of the upper clamping arm 202 and the lower clamping arm 203, and each front cabin connector 4 has a groove 403 that mates with the corresponding locking plate. The front cabin connectors 4 are fixedly connected to the claw connectors 3. Several threaded holes are formed on the bottom wall of the front cabin connectors for fixing the top and bottom of the antenna front cabin to the upper and lower clamping arms respectively, thereby clamping the antenna front cabin between the upper and lower clamping arms. The base 6 is located at the bottom of the lower clamping arm 203 and near the mounting plate on the lower clamping arm. The base is used to provide vertical support when the antenna is in vehicle-mounted mode.

[0055] Since the weight of the antenna front compartment is concentrated in the lower part of the front compartment, to prevent the clamping platform on the lower clamping arm from detaching from the front compartment connector fixed to the bottom of the antenna front compartment due to the weight of the antenna front compartment during antenna operation, an anti-detachment hook 5 is provided at the end of the lower clamping arm 203 in this embodiment. The anti-detachment hook 5 is fixed to the front end face of the clamping platform of the lower clamping arm, and the side wall of the anti-detachment hook is tightly attached to the front compartment connector 4 installed on the lower clamping arm. Specifically, the anti-detachment hook includes a rectangular plate and a dovetail structure extending upward along the rectangular plate. The design of the dovetail structure can improve the support strength of the anti-detachment hook.

[0056] Reference Figure 4 The turntable connecting plate 1 is a rectangular plate. As shown in the diagram, a circular hole 102 is located on the upper right side of the turntable connecting plate for mounting a GPS support rod. Several threaded holes are located on one end of the turntable connecting plate 1 for fixing the turntable connecting plate to the support claw; several threaded holes are also located on the other end of the turntable connecting plate 1 for mounting an antenna counterweight. Several mutually spaced reinforcing ribs are arranged on both sides of the turntable connecting plate 1 to reduce its weight while maintaining the connection strength of the turntable connecting plate. The turntable connecting plate is made of high-strength aluminum alloy.

[0057] Reference Figures 5-7The connecting arm 201 of the claw 2 has several threaded holes in its middle, coaxial with the corresponding threaded holes on one end of the turntable connecting plate 1, for fixing the turntable connecting plate to the connecting arm 201 with screws. The claw is generally arched. Both the upper clamping arm 202 and the lower clamping arm 203 include a horizontal arm 205 and an inclined arm 206. The inclined arm is inclined inward, and its two ends are fixedly connected to the ends of the horizontal arm 205 and the connecting arm 201, respectively. The clamping platform 204 is set perpendicular to the end of the horizontal arm, and a wedge-shaped groove 207 is provided between one side of the clamping platform and the horizontal arm body. Specifically, the clamping platform has a wedge-shaped structure. Several mutually spaced stiffened wall plates are arrayed on the inclined arm 206 and the connecting arm 201, which reduces weight while increasing the connection strength of the claw. The claw is made of high-strength aluminum alloy.

[0058] Reference Figure 8 The claw connector 3 includes two identical clamping blocks. The two clamping blocks are symmetrically fixed on both sides of the horizontal arm, and one end of each clamping block, when mated, can wrap around the sidewall of the wedge-shaped groove 207. The mating ends of the clamping blocks have threaded holes along the length of the horizontal arm 205 for fixing the clamping blocks to the front cabin connector. Specifically, the mating ends of the clamping blocks have a fully laterally curved arc structure.

[0059] Reference Figure 9 The front cabin connector 4 includes a base plate 401 and an arc-shaped protrusion 402 located in the middle of the base plate 401 and extending upward. A groove 403 matching the upper clamping platform of the support claw is provided at the top center of the arc-shaped protrusion; specifically, this groove is a wedge-shaped groove matching the wedge-shaped clamping platform. Threaded through holes are provided on the base plate on both sides of the arc-shaped protrusion 402 for fixing the top and bottom of the antenna front cabin to the front cabin connectors of the upper clamping arm and the lower clamping arm, respectively.

[0060] The base 6 is mounted on the horizontal arm of the lower clamping arm, located to the right of the claw connector 3 on the lower clamping arm. Specifically, the base 6 includes a support structure 601 and an L-shaped structure 602 vertically fixed to the top of the support structure. The horizontal arm of the lower clamping arm is located on the stepped surface of the L-shaped structure, and the side wall of the L-shaped structure has threaded holes for fixing the L-shaped structure 602 to the horizontal arm of the lower clamping arm with screws. When the antenna is used in a vehicle, the support structure and the L-shaped structure are separate and connected by screws to facilitate fixing the fork arm device to the vehicle. The bottom of the support structure 601 is always fixed to the vehicle body; when the base support is required, the L-shaped structure only needs to be installed on the support structure 601.

[0061] The process of installing the fork arm device of this utility model on the antenna front compartment and turntable is as follows:

[0062] Step 1: Install the pitch axis of the turntable through the central mounting hole of the two turntable connecting plates 1.

[0063] Step 2: Fix the two claws 2 to the outer end of the corresponding turntable connecting plate 1 respectively.

[0064] Step 3: Fix the four claw connectors 3 to the corresponding positions of the upper and lower clamping arms of the two claws 2 respectively.

[0065] Step 4: Fix the top two ends of the antenna front compartment to the two front compartment connectors 4 with screws, so that the grooves on the two front compartment connectors 4 face upwards;

[0066] The bottom ends of the antenna front compartment are fixed to the other two front compartment connectors 4 with screws, so that the grooves on the two front compartment connectors 4 face downwards.

[0067] Step 5: Insert the clamping platforms of the two upper clamping arms into the grooves of the two front compartment connectors fixed on the top of the antenna front compartment; and fix the two front compartment connectors fixed on the top of the antenna front compartment to the claw connectors 3 fixed on the two upper clamping arms respectively.

[0068] Insert the clamping plates of the two lower clamping arms into the grooves of the two front compartment connectors fixed at the bottom of the antenna front compartment; and fix the two front compartment connectors fixed at the bottom of the antenna front compartment to the claw connectors 3 fixed on the two lower clamping arms respectively.

[0069] Step 6: Secure the anti-detachment hook 5 to the ends of the two lower clamping arms and make it flush against the side wall of the front cabin connector mounted on the lower clamping arms;

[0070] When the antenna is used in a vehicle, fix the base 6 to the bottom of the lower clamping arm.

[0071] The installation process for the antenna front compartment and fork arm assembly is now complete. The disassembly process is the reverse of the installation process.

[0072] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model.

Claims

1. A fork arm device for fixing an antenna front compartment, the fork arm device being used to connect to a turntable and an antenna front compartment; characterized in that, The fork arm device includes two vertically arranged clamping and support mechanisms; Each of the clamping and support mechanisms includes a turntable connecting plate, a claw, a claw connector, a front compartment connector, and a base; The turntable connecting plate has a central mounting through hole at its center that matches the pitch axis of the turntable, which is used for positioning and supporting the pitch axis. One end of the turntable connecting plate is fixedly connected to the center position of the support claw, and the support claw is arranged parallel to one side of the turntable connecting plate. The claw includes a connecting arm and an upper clamping arm and a lower clamping arm symmetrically arranged at both ends of the connecting arm; the ends of the upper clamping arm and the ends of the lower clamping arm have clamping platforms that face each other and are arranged inward. Both the upper clamping arm and the lower clamping arm are fixed with claw connectors near the position of the clamping platform on them; Two front cabin connectors are respectively disposed at the ends of the upper clamping arm and the lower clamping arm. The front cabin connectors have grooves that can mate with the corresponding clamping platforms. Furthermore, the front cabin connectors are fixedly connected to the claw connectors. Several threaded holes are opened on the plate surface of the front cabin connectors that is parallel to the bottom wall surface of the grooves, for fixing the top and bottom of the antenna front cabins to the upper clamping arm and the lower clamping arm respectively, so as to clamp the antenna front cabins between the upper clamping arm and the lower clamping arm. The base is located at the bottom of the lower clamping arm and near the clamping platform on the lower clamping arm. The base is used to provide vertical support when the antenna is in vehicle-mounted use.

2. The fork arm device for fixing the antenna front compartment according to claim 1, characterized in that, It also includes anti-detachment features; The anti-detachment hook is fixed to the front end face of the clamping platform of the lower clamping arm, and the side wall of the anti-detachment hook is closely attached to the side wall of the front cabin connector installed on the lower clamping arm to prevent the front cabin connector from detaching from the clamping platform of the lower clamping arm due to the weight of the lower part of the antenna front cabin.

3. The fork arm device for fixing the antenna front compartment according to claim 1 or 2, characterized in that, The turntable connecting plate has a stop at one end of the central mounting through hole for positioning and fitting the pitch axis. A round hole is opened on the surface of the turntable connecting plate away from the position of the support claw for installing a GPS support rod.

4. The fork arm device for fixing the antenna front compartment according to claim 3, characterized in that, The turntable connecting plate has several threaded holes on its end face away from the support claw for fixing the antenna counterweight.

5. The fork arm device for fixing the antenna front compartment according to claim 1 or 2, characterized in that, The claw connector includes two clamping blocks with identical structures; A wedge-shaped groove is provided between one side of the card table and the clamping arm body; Two clamping blocks are symmetrically fixed on both sides of the clamping arm body, and the ends of the two clamping blocks can wrap around the side wall of the wedge-shaped groove after they are joined together. The clamping block has a threaded hole at the end for docking along the length of the fork arm device, for fixing the clamping block to the front cabin connector.

6. The fork arm device for fixing the antenna front compartment according to claim 5, characterized in that, The front cabin connector includes a base plate and an arc-shaped protrusion located in the middle of the base plate and extending upward; The top center of the arc-shaped protrusion has a groove that matches the mounting plate on the claw; The base plate has threaded through holes at both ends for fixing the top and bottom of the antenna front compartment to the front compartment connector of the upper clamping arm and the front compartment connector of the lower clamping arm, respectively.

7. The fork arm device for fixing the antenna front compartment according to claim 6, characterized in that, The card slot has a wedge-shaped structure, and the groove on the front cabin connector is a wedge-shaped groove that matches the card slot.

8. The fork arm device for fixing the antenna front compartment according to claim 7, characterized in that, The base includes a support structure and an L-shaped structure vertically fixed to the top of the support structure; The L-shaped structure has threaded holes on its sidewalls for fixing the L-shaped structure to the lower clamping arm with screws.

9. The fork arm device for fixing the antenna front compartment according to claim 1, characterized in that, The claw is arched in shape. Both the upper clamping arm and the lower clamping arm include a horizontal arm and an inclined arm. The inclined arm is inclined inward, and its two ends are fixedly connected to the end of the horizontal arm and the end of the connecting arm, respectively.

10. The fork arm device for fixing the antenna front compartment according to claim 9, characterized in that, The inclined arm and the connecting arm are arrayed with several mutually spaced stiffened wall panels.

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