Folding arm retraction and extension mechanism

Abstract

A folding arm folding and unfolding mechanism comprises a mounting base, a motor, a driving gear, a driven gear, a turntable, a push rod, a folding arm, and a falling module; wherein the motor drives the driving gear to rotate, the driving gear drives the driven gear to rotate, the driven gear and the turntable are coaxially arranged, the turntable rotates with the rotation of the driven gear, and the push rod is pivotally connected to the turntable; the turntable comprises a dodecagonal disk body, the disk body is provided with an identification hole, the identification hole includes a reference point, and when the folding arm is in the folded state, the inner side edge of the push rod is aligned with the reference point in the upper and lower directions.

Description

Technical Field

[0001] The present invention relates to the field of antenna communication systems, and in particular to a folding arm retracting and extending mechanism. Background Art

[0002] Integrated support vehicles are military and civilian vehicles with diverse functions, enabling comprehensive and adaptable applications in a wide range of terrains and environments. In practical applications, base stations or integrated support vehicles are often used to provide communication services, along with corresponding antenna mounting mechanisms. The integrated support vehicles, built by Hengyang Taihao, are a widely used communication platform and have received widespread acclaim in the fields of command and control, integrated support, and communication systems.

[0003] In actual practice, the following problems exist:

[0004] 1. The antenna mounting mechanism of the existing technology is fixed and cannot be automatically adjusted for retraction and extension. Some technologies have overcome this difficulty and achieved retraction and extension, but the folding arm has multiple sections, and each section uses a single rod. The support and stability of a single rod are insufficient. If multiple rods are used at this time, the interference between the multiple rods will be serious, and it is impossible to form a parallel storage between the multiple rods.

[0005] 2. In the antenna mounting mechanism of the prior art, each folding arm has multiple sections. If multiple rods are used for each section, the transmission between the rods will be more complicated, and the connection parts between the sections will be more complicated.

[0006] 3. The existing technology collection and development mechanism uses a push rod, which involves the setting of mounting holes or ferrules at both ends. During outdoor operations, especially when the vehicle-mounted antenna platform of the comprehensive support vehicle passes through narrow terrain outdoors, the antenna may cause obstacles to passing. It may be necessary to disassemble the push rod to construct a different antenna arrangement. When disassembling the push rod, it is necessary to disassemble the connector in the mounting hole or ferrule; when the hole is worn or the ferrule slips after long-term disassembly and assembly, the mounting hole or ferrule may lose accuracy; at this time, there will be problems with the push rod accuracy when reinstalling after disassembly, resulting in loss of accuracy of the folding arm, and a lack of maintenance and repair means during outdoor vehicle operations.

[0007] Fourth, the existing communication whip antenna is erected high. In some cases, such as shaking, a long lever arm will be generated, thereby generating a large torque, which is not conducive to the stability of the support or rotating part. Summary of the Invention

[0008] In order to overcome the above problems, the present invention proposes a solution to solve the above multiple problems at the same time.

[0009] The technical solution adopted by the present invention to solve its technical problem is: a folding arm folding and unfolding mechanism, including a mounting base, a motor, a driving gear, a driven gear, a turntable, a push rod, a folding arm, and a falling module; wherein the motor drives the driving gear to rotate, the driving gear drives the driven gear to rotate, the driven gear and the turntable are coaxially arranged, the turntable rotates with the rotation of the driven gear, and the push rod is pivotally connected to the turntable; the turntable includes a dodecagonal disk body, the disk body is provided with an identification hole, the identification hole includes a reference point, and in the folding arm storage state, the inner side of the push rod is aligned with the reference point in the upper and lower directions;

[0010] and a lever, having one end in pinned connection to the bottom of the link, said pin being an upper portion of the block block and said at least one link being connected to the other end of the block block.

[0011] The lodging module includes a shell, a rotating wheel, a rotating shaft, a guard plate, a connecting plate, and a mounting plate. The shell includes a main shell and a sub-shell. The main shell is provided with a rotating shaft, the rotating shaft is sleeved with a rotating wheel, connecting plates are provided at both ends of the rotating shaft, a protruding guard plate is integrally formed on the connecting plate, a mounting plate is connected to the connecting plate, and an antenna is installed on the mounting plate; the sub-shell is provided on the side wall of the main shell, the other end of the second main rod extends into the sub-shell, and the other end of the second sub-rod is connected to the top of the sub-shell.

[0012] Preferably, in the folded arm storage state, the first main rod and the first auxiliary rod are parallel to each other, the second main rod and the second auxiliary rod are parallel to each other, and the first main rod and the second main rod are not in a parallel state.

[0013] Preferably, in the folding arm storage state, the first secondary rod and the second secondary rod are not in a parallel state.

[0014] Preferably, the thickness of the first main rod is greater than the thickness of the first secondary rod.

[0015] Preferably, a groove is provided on the second secondary rod.

[0016] Preferably, the number of the folding arms, push rods and lodging modules is four.

[0017] Preferably, the number of the identification holes is four.

[0018] Preferably, one end of the second main rod is connected to the third hole of the second piece portion of the upper and lower adapter pieces.

[0019] Preferably, one end of the second main rod is located between the second piece portions of the upper and lower adapter pieces.

[0020] Preferably, one end of the second secondary rod is connected to the upper portion of the fourth hole of the second piece of the upper adapter piece.

[0021] The beneficial effects of the present invention are:

[0022] In response to points 1 and 2 raised in the background technology, the following solutions were adopted:

[0023] 1. A main rod and a secondary rod are set in each section of the folding arm. The thickness of the main rod is greater than that of the secondary rod. The upper and lower ends of the main rod are connected by two sets of connecting parts, and the secondary rod is only connected to one set of connecting parts to form a stable support.

[0024] 2. A single set of adapter plates is set between different sections of the folding arm. One end of each rod group includes two connection points. The connection point of the main rod is located below the upper adapter plate, and the connection point of the auxiliary rod is located above the upper adapter plate. When stored, the two connection points of the main rod and the two connection points of the auxiliary rod in a single rod group are located on the same plane, and the other rod group is parallel to the above-mentioned single rod group, thereby forming a parallel storage. In addition, the above functions are realized by only using one set of adapter plates and the positional matching relationship between them and the rod group, which simplifies parts and costs.

[0025] 3. In response to the third point raised in the background technology, an identification hole is provided on the turntable of the push rod, and a reference point is provided on the identification hole. When the push rod is stored, a push block formed by a sleeve connected to one end of the push rod abuts against the mounting plate, and the other end is fixed in the mounting hole on the turntable through a connecting piece. The inner side of the push rod is aligned with the reference point in the upper and lower directions. Therefore, no matter which end of the push rod is inaccurately positioned, the position of the third point can be found by connecting the other end with the reference point and by extending the line connecting the two points. Moreover, quick calibration can be achieved when disassembling and reassembling even when there are insufficient tools for outdoor operations.

[0026] 4. Regarding point 4 raised in the background technology, connecting plates are provided on both sides of the rotating wheel that controls the rotation of the whip antenna to form a first supporting structure. The connecting plates extend along one side of the vertical rotating axis of the rotating wheel, and a protruding guard plate is formed on the connecting plate along the other side of the vertical rotating axis, thereby providing better protection performance and enhancing stability.

[0027] Note: The above designs are not listed in any particular order, and each one makes the present invention distinctive and significantly advanced compared to the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further described below with reference to the accompanying drawings and examples.

[0029] Figure 1 This is a schematic diagram of the overall contraction plane of the present invention

[0030] Figure 2 This is a three-dimensional schematic diagram of the unfolded state of the present invention

[0031] Figure 3 This is an enlarged view of the folding arm portion of the present invention

[0032] Figure 4 This is an enlarged view of the lodging module of the present invention

[0033] Figure 5 This is a schematic diagram of the adapter of the present invention

[0034] In the figures, the reference numerals are as follows:

[0035] 1. Mounting base, 2. Driving gear, 3. Driven gear, 4. Push rod, 5. Turntable, 6. Folding arm, 7. Adapter, 8. Identification hole, 9. Reference point, 10. Whip antenna, 11. Lodging module, 12. First main rod, 13. First auxiliary rod, 14. Second main rod, 15. Second auxiliary rod, 16. Driving part, 17. Mounting plate, 18. Connecting plate, 19. Guard plate, 20. Rotating wheel, 21. Main shell, 22. Auxiliary shell, 23. First sheet, 24. Second sheet, 25. First hole, 26. Second hole, 27. Third hole, 28. Fourth hole. DETAILED DESCRIPTION

[0036] As shown in the figure: a folding arm folding and unfolding mechanism includes a mounting base, a motor, a driving gear, a driven gear, a turntable, a push rod, a folding arm, and a falling module; wherein the motor drives the driving gear to rotate, the driving gear drives the driven gear to rotate, the driven gear and the turntable are coaxially arranged, the turntable rotates with the rotation of the driven gear, and the push rod is pivotally connected to the turntable; the turntable includes a dodecagonal disk body, the disk body is provided with an identification hole, the identification hole includes a reference point, and when the folding arm is in the folded state, the inner side of the push rod is aligned with the reference point in the vertical direction;

[0037] and a lever, having one end in pinned connection to the bottom of the link, said pin being an upper portion of the block block and said at least one link being connected to the other end of the block block.

[0038] The lodging module includes a shell, a rotating wheel, a rotating shaft, a guard plate, a connecting plate, and a mounting plate. The shell includes a main shell and a sub-shell. The main shell is provided with a rotating shaft, the rotating shaft is sleeved with a rotating wheel, connecting plates are provided at both ends of the rotating shaft, a protruding guard plate is integrally formed on the connecting plate, a mounting plate is connected to the connecting plate, and an antenna is installed on the mounting plate; the sub-shell is provided on the side wall of the main shell, the other end of the second main rod extends into the sub-shell, and the other end of the second sub-rod is connected to the top of the sub-shell.

[0039] As shown in the figure: in the folding arm storage state, the first main rod and the first auxiliary rod are parallel to each other, the second main rod and the second auxiliary rod are parallel to each other, and the first main rod and the second main rod are not in a parallel state. In the folding arm storage state, the first auxiliary rod and the second auxiliary rod are not in a parallel state. The thickness of the first main rod is greater than the thickness of the first auxiliary rod. A groove is provided on the second auxiliary rod. The number of the folding arms, push rods, and falling modules is four. The number of the identification holes is four. One end of the second main rod is connected to the third hole of the second piece of the upper and lower adapter plates. One end of the second main rod is located between the second pieces of the upper and lower adapter plates. One end of the second auxiliary rod is connected to above the fourth hole of the second piece of the upper adapter plate.

[0040] The above detailed description is a specific description of a feasible embodiment of the present invention. The embodiment is not intended to limit the patent scope of the present invention. Any equivalent implementation or modification that does not depart from the present invention should be included in the patent scope of this case.

Claims

1. A folding arm retracting and extending mechanism, characterized in that: The invention comprises a mounting base, a motor, a driving gear, a driven gear, a turntable, a push rod, a folding arm, and a lodging module; wherein the motor drives the driving gear to rotate, the driving gear drives the driven gear to rotate, the driven gear and the turntable are coaxially arranged, the turntable rotates with the rotation of the driven gear, and the push rod is pivotally connected to the turntable; the turntable comprises a dodecagonal disk body, the disk body is provided with an identification hole, the identification hole includes a reference point, and when the folding arm is in the storage state, the inner side of the push rod is aligned with the reference point in the vertical direction; and a lever, having one end in pinned connection to the bottom of the link, said pin being an upper portion of the block block and said at least one link being connected to the other end of the block block. The lodging module includes a shell, a rotating wheel, a rotating shaft, a guard plate, a connecting plate, and a mounting plate. The shell includes a main shell and a sub-shell. The main shell is provided with a rotating shaft, the rotating shaft is sleeved with a rotating wheel, connecting plates are provided at both ends of the rotating shaft, a protruding guard plate is integrally formed on the connecting plate, a mounting plate is connected to the connecting plate, and an antenna is installed on the mounting plate; the sub-shell is provided on the side wall of the main shell, the other end of the second main rod extends into the sub-shell, and the other end of the second sub-rod is connected to the top of the sub-shell.

2. The folding arm stowage and extension mechanism according to claim 1, characterized in that: In the folding arm storage state, the first main rod and the first auxiliary rod are parallel to each other, the second main rod and the second auxiliary rod are parallel to each other, and the first main rod and the second main rod are not in a parallel state.

3. The folding arm stowage and extension mechanism according to claim 2, characterized in that: In the folding arm storage state, the first auxiliary rod and the second auxiliary rod are not in a parallel state.

4. The folding arm stowage and extension mechanism according to claim 1, characterized in that: The thickness of the first main rod is greater than the thickness of the first secondary rod.

5. The folding arm stowage and extension mechanism according to claim 1, characterized in that: The second secondary rod is provided with a slot.

6. The folding arm stowage and extension mechanism according to claim 1, characterized in that: The number of the folding arms, push rods and lodging modules is four.

7. The folding arm stowage and extension mechanism according to claim 1, characterized in that: The number of the identification holes is four.

8. The folding arm stowage and extension mechanism according to claim 1, characterized in that: One end of the second main rod is connected to the third hole of the second piece portion of the upper and lower adapter pieces.

9. The folding arm stowage and extension mechanism according to claim 8, characterized in that: One end of the second main rod is located between the second piece portions of the upper and lower adapter pieces.

10. The folding arm stowage and extension mechanism according to claim 1, characterized in that: One end of the second secondary rod is connected to the upper portion of the fourth hole of the second piece portion of the upper adapter piece.

Images