Vehicle-mounted antenna capable of achieving cable-driven turnover movement

Abstract

The invention provides a vehicle-mounted antenna capable of achieving cable-driven turnover movement, and belongs to the technical field of vehicle-mounted antennas. According to the antenna, the overturning movement of the antenna is realized by adopting a novel mode that the hoisting mechanism applies tension to the antenna vertical cylinder through the flexible steel cable, the height of a stress point of the antenna in the overturning movement is effectively increased, and the driving capability of the overturning movement is improved; the power-assisted push rod is arranged on the opposite face of the hoisting mechanism, so that the problem that the moment of force at the initial position of cable driving is too large is solved. Compared with the traditional scheme, the scheme not only effectively realizes the turnover motion of the large vehicle-mounted antenna with the characteristics of large weight and large height, but also has the advantages of high reliability, good safety, lower cost and the like.

Description

Technical Field

[0001] The present invention relates to a vehicle-mounted antenna driven by a cable to perform a tipping motion, belonging to the technical field of vehicle-mounted antennas. Background Art

[0002] Vehicle-mounted antennas are important mobile communication devices. Due to their high mobility, no need for infrastructure construction and the ability to quickly transfer to different locations to perform tasks, they have been increasingly applied to various scenarios such as emergency communication and military communication in our country.

[0003] Generally, vehicle-mounted antennas with relatively large heights have a high antenna body. To meet the height requirements during operation and the height limit requirements during transportation, a set of tipping mechanisms are often used to achieve the tipping action, so that the antenna is in a lying storage state during transportation, and the antenna is erected and lifted to a certain height during the working state.

[0004] Most traditional tipping mechanisms adopt a telescopic two-force bar structure, such as commonly used forms like electric push rods or hydraulic push rods. By arranging force-bearing brackets in front of and behind the antenna vertical tube and setting a telescopic two-force bar structure on them, the tipping and erection actions of the antenna vertical tube are realized through the telescopic push and pull of the two-force bar structure. Within a certain scale, this structure is reasonable and reliable; however, it is not suitable for large vehicle-mounted antennas. Large vehicle-mounted antennas are taller and heavier; limited by the vehicle body size, the two-force bar can only be designed to be "thick" instead of "tall" in a matching manner. In such a design, the force-bearing point of the tipping mechanism on the antenna vertical tube is too low, and there is a risk of low reliability. Summary of the Invention

[0005] In view of this, the present invention provides a vehicle-mounted antenna driven by a cable to perform a tipping motion. This antenna abandons the telescopic two-force bar structure in the traditional form and mainly adopts a new structure of a winch cooperating with a flexible steel cable to achieve the tipping action of the antenna. For large vehicle-mounted antennas, the new structure can significantly increase the height of the force-bearing point of the antenna vertical tube, and has the advantages of high reliability, good safety, and low cost.

[0006] The present invention adopts the following technical solutions to achieve the above technical effects:

[0007] A vehicle-mounted antenna driven by a cable to perform a tipping motion includes a vehicle body 1, a vehicle-mounted antenna 2, a rotating shaft structure 3, a winch mechanism 4, a force-bearing bracket 5, a tension anchor point 6, a steering pulley 7, a steel cable 8, a boosting push rod 9, and a limit locking mechanism 10, etc.; the winch mechanism 4 and the boosting push rod 9 are directly fixed on the vehicle body installation plane and are distributed on the front and rear sides of the middle plane of the vehicle-mounted antenna 2; the vehicle-mounted antenna 2 is installed on the vehicle body installation surface through the rotating shaft structure 3 and can generate a rotating action by using the rotating shaft.

[0008] The load-bearing bracket 5 is fixed on the vehicle body installation surface, and the upper load-bearing crossbeam structure is located between the antenna stand and the hoisting mechanism 4; the steering pulley 7 is fixed on the lower end surface of the upper crossbeam.

[0009] The tension anchor point 6 is fixed on the middle surface of the antenna tube, and the steel cable 8 passes around the steering pulley 7, with one end being tied to the tension anchor point 6 of the antenna tube and the other end being wound on the drum of the hoisting mechanism 4.

[0010] The two ends of the position-limiting locking mechanism 10 are respectively connected to the antenna stand and the force-bearing bracket 5, and the two end components are flexibly connected, so that the position can be locked when the two move to a predetermined angle.

[0011] The booster push rod 9 is arranged in the middle of the vehicle body on the overturning motion surface of the antenna, and is a retractable two-force rod structure, such as an electric push rod or a hydraulic cylinder mechanism; the booster push rod 9 can achieve a certain height of lifting and retracting in the up and down directions, which is used to reduce the cable driving tension at the starting and ending stages of the overturning motion of the antenna, improve the movement stability, etc.

[0012] Furthermore, the limit locking mechanism includes a constraint plate with a slide groove; one end of the constraint plate is hinged to the receiving bracket; an extended end is provided on the side wall of the vehicle-mounted antenna, and a locking bolt is provided on the extended end; the locking bolt passes through the slide groove and can move freely in the slide groove; the locking bolt is perpendicular to the constraint plate.

[0013] When the vehicle-mounted antenna is in the process of being stored and put into operation, the antenna stand is gradually adjusted from the lying posture to the erected posture, and its motion control process conforms to the following sequence:

[0014] In the first step, the booster push rod 9 applies thrust to lift the vehicle antenna 2 to a certain height;

[0015] In the second step, the hoisting mechanism 4 moves synchronously with the booster push rod 9, and after the booster push rod 9 is raised to the limit height, the antenna stand tube is pulled by the tension of the steel cable 8 to continue the lifting movement; after the booster push rod 9 is raised to the limit height, it is separated from the antenna;

[0016] In the third step, when the vehicle-mounted antenna 2 is in an erected state, that is, after the overturning action is in place, the hoisting mechanism 4 stops moving, and the limit locking mechanism 10 starts the locking action, thereby locking the erection angle of the vehicle-mounted antenna.

[0017] When the vehicle-mounted antenna changes from the working state to the storage state, the antenna stand is gradually adjusted from the erected posture to the lying posture, and its motion control process is opposite to the above process.

[0018] Furthermore, the booster push rod 9 may be an electric push rod or a hydraulic lift rod.

[0019] Furthermore, the end of the boosting push rod 9 has a ball pad structure, which can adjust the direction to automatically adapt to different angles of the rotation of the antenna vertical cylinder.

[0020] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0021] 1. In this solution, the cooperation of the cable drive and the telescopic rod on the front and rear sides of the antenna effectively solves the problems of the storage and working attitude adjustment of the large vehicle-mounted antenna;

[0022] 2. The cable drive structure adopted in this solution effectively improves the height of the force application point of the antenna during the tipping movement and enhances the driving ability of the tipping movement;

[0023] 3. This solution has the advantages of high reliability, good safety and low cost. Description of the Drawings

[0024] Figure 1 is a schematic structural diagram of an embodiment of the present invention;

[0025] Figure 2 is a schematic structural diagram of an embodiment of the present invention (hiding the antenna reflector);

[0026] Figure 3 is a schematic structural diagram of an embodiment of the present invention (hiding the antenna reflector and the force-bearing bracket);

[0027] In the figure:

[0028] vehicle body 1, vehicle-mounted antenna 2, rotating shaft structure 3, hoisting mechanism 4, force-bearing bracket 5, tension anchor point 6, steering pulley 7, steel cable 8, boosting push rod 9, limit locking mechanism 10. Detailed Embodiment

[0029] Next, the present invention will be further described in conjunction with the drawings.

[0030] The present invention provides a vehicle-mounted antenna with a cable-driven tipping movement, which mainly includes a vehicle body 1, a vehicle-mounted antenna 2, a rotating shaft structure 3, a hoisting mechanism 4, a force-bearing bracket 5, a tension anchor point 6, a steering pulley 7, a steel cable 8, a boosting push rod 9, a limit locking mechanism 10 and other parts.

[0031] The vehicle body 1 is a general heavy-duty load-carrying vehicle body. The vehicle-mounted antenna 2 includes an antenna vertical cylinder and a reflector, and the reflector is connected to the antenna vertical cylinder.

[0032] The rotating shaft mechanism 3 mainly includes two parts that can rotate around an axis. One part is fixedly installed on the vehicle body, and the other part is connected to the antenna vertical cylinder of the vehicle-mounted antenna.

[0033] The hoisting mechanism 4 is an integrated hoisting drum device integrating a motor and a speed reducer.

[0034] The load-bearing bracket 5 is a steel structure bracket, the bottom of which is fixedly mounted on the vehicle body 1, and a load-bearing crossbeam is arranged on the top, and the load-bearing crossbeam is located between the hoisting mechanism and the antenna vertical tube; the steering pulley 7 is installed at the bottom of the middle position of the load-bearing crossbeam;

[0035] The tension anchor point 6 is fixedly connected to the outer side of the middle plane of the antenna tube and can be integrally formed with the tube by welding;

[0036] The steel cable 8 is wound around the drum of the hoisting mechanism 4, and the other end passes around the diverting pulley system 7 and remains on the tension anchor point 6 of the antenna stand.

[0037] The power-assist push rod 9 is arranged on the other side of the vehicle-mounted antenna 2 opposite to the hoisting mechanism 4, fixed on the vehicle body 1, and is always in contact with the vehicle-mounted antenna 2 in the stowed state; here, the power-assist push rod 9 selects a two-stage jacking hydraulic telescopic rod mechanism, and a U-shaped automatic centering bracket is arranged at the end, and the bracket and the push rod are flexibly connected and can rotate at an angle.

[0038] The hoisting mechanism 4, the booster push rod 9, the antenna stand, the tension anchor point 6 fixed on the stand, the steering pulley 7 and other parts are all distributed on the middle surface of the vehicle-mounted antenna, that is, in the overturning motion plane.

[0039] In the process of adjusting the vehicle-mounted antenna from the stowed state to the working state, the antenna stand is gradually adjusted from the lying posture to the erected posture, and its motion control includes the following steps:

[0040] In the first step, the booster push rod 9 applies thrust to lift the vehicle antenna 2 to a certain height;

[0041] In the second step, the hoisting mechanism 4 moves synchronously with the booster push rod 9, and after the booster push rod 9 is raised to the limit height, the pulling force of the steel cable 8 pulls the antenna stand to continue the lifting movement;

[0042] In the third step, after the vehicle-mounted antenna 2 is turned over in the erected state, the hoisting mechanism 4 stops moving, and the limit locking mechanism 10 starts locking action, thereby locking the erection angle of the vehicle-mounted antenna.

[0043] The limit locking mechanism of this embodiment includes a constraint plate with a slide groove; one end of the constraint plate is hinged to the receiving bracket; an extended end is provided on the side wall of the vehicle-mounted antenna, and a locking bolt is provided on the extended end; the locking bolt passes through the slide groove and can move freely in the slide groove; the locking bolt is perpendicular to the constraint plate, and after reaching the specified position, the locking bolt is rotated to clamp the constraint plate to achieve limitation.

[0044] In summary, the present invention provides a vehicle-mounted antenna driven by a cable to perform a tipping motion. A novel method is adopted in which a winch mechanism applies a pulling force to the antenna cylinder through a flexible steel cable, effectively increasing the height of the force application point during the tipping motion of the antenna and improving the driving ability of the tipping motion. By arranging a boosting push rod opposite to the winch mechanism, the problem of excessive initial torque in cable drive is solved. Compared with the traditional solution, this solution not only effectively realizes the tipping motion of large vehicle-mounted antennas with the characteristics of large weight and large height, but also has the advantages of high reliability, good safety and low cost.

[0045] It should be understood that the above description of the specific implementation of this patent is only an exemplary description listed for the convenience of those of ordinary skill in the art to understand the patent solution, and does not imply that the protection scope of this patent is only limited to these examples. Those of ordinary skill in the art can, on the premise of fully understanding the technical solution of this patent, without any creative labor, obtain more specific implementation manners by combining technical features, replacing some technical features, adding more technical features, etc. to the various examples listed in this patent. All these specific implementation manners are within the scope covered by the claims of this patent. Therefore, these new specific implementation manners should also be within the protection scope of this patent.

[0046] In addition, for the purpose of simplifying the description, this patent may not list some common specific implementation schemes, which can be naturally thought of by those of ordinary skill in the art after understanding the technical solution of this patent. Obviously, these schemes should also be included in the protection scope of this patent.

Claims

1. A vehicle-mounted antenna with cable-driven tipping motion, comprising a vehicle body (1), a vehicle-mounted antenna (2), a rotating shaft structure (3), a hoisting mechanism (4), a force-bearing bracket (5), a tension anchor point (6), a steering pulley (7), a steel cable (8), a boosting push rod (9) and a limit locking mechanism (10); characterized in that, The hoisting mechanism (4) and the booster push rod (9) are fixed on the vehicle body installation plane, distributed on the front and rear sides of the vehicle-mounted antenna (2), and the line connecting the three forms a straight line.

2. The vehicle-mounted antenna with cable-driven tipping movement according to claim 1, characterized in that, The load-bearing bracket (5) is fixed on the vehicle body installation surface, and the upper load-bearing crossbeam structure is located between the antenna stand and the hoisting mechanism (4); the steering pulley (7) is fixed on the lower end surface of the upper crossbeam. The tension anchor point (6) is fixed on the middle surface of the antenna tube, and the steel cable (8) passes around the steering pulley (7), with one end being tied to the tension anchor point (6) of the antenna tube and the other end being wound around the drum of the hoisting mechanism (4). The two ends of the position limiting locking mechanism (10) are respectively connected to the antenna stand and the force bearing bracket (5), and are flexibly connected. The booster push rod (9) is arranged at the middle of the vehicle body on the antenna tipping motion surface and is a retractable two-force rod structure.

3. The vehicle-mounted antenna with cable-driven tipping motion according to claim 2, characterized in that, The booster push rod is an electric push rod or a hydraulic lifting rod, and the end of the booster push rod has a ball cushion structure for being hinged with the antenna stand.

4. The vehicle-mounted antenna with cable-driven tipping motion according to claim 2, characterized in that, The limit locking mechanism includes a constraint plate with a slide groove; one end of the constraint plate is hinged to the receiving bracket; an extended end is provided on the side wall of the vehicle-mounted antenna, and a locking bolt is provided on the extended end; the locking bolt passes through the slide groove and can move freely in the slide groove; the locking bolt is perpendicular to the constraint plate.

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