Vehicle-mounted feed-forward antenna transmitter

Abstract

The invention discloses a vehicle-mounted feed-forward antenna transmitter, and belongs to the technical field of vehicle-mounted feed-forward antennas. The feed source comprises a feed source supporting rod and a connection locking device used for fixing the feed source supporting rod. The antenna further comprises a composite material antenna surface, an antenna surface back frame, a connecting support arm and a feed source mounting frame. The feed source mounting frame is supported above the composite material antenna surface through a plurality of feed source supporting rods; the connection locking device is installed on the front face of the composite material antenna face, one end of the feed source supporting rod is connected to the connection locking device, and the other end of the feed source supporting rod is connected to the feed source installation frame. The antenna back frame is installed on the back face of the composite material antenna face, and the antenna back frame is connected to a vehicle through the connecting support arm. The device is suitable for the vehicle-mounted feed-forward antenna with high requirements on collection height, vehicle cabin space occupation and antenna weight, the collection space can be reduced in the antenna collection state, meanwhile, the feed source can be replaced according to the actual requirement, the multi-task requirement is met, and the operation is simple.

Description

Technical Field

[0001] The invention belongs to the field of vehicle-mounted feedforward antennas and discloses a lightweight vehicle-mounted feedforward antenna reflector design, which is particularly suitable for vehicle-mounted feedforward antennas with large cabin space restrictions and high antenna weight requirements. Background Art

[0002] At present, in order to meet the height limit requirements of railways and highways, the storage space of vehicle-mounted feedforward antennas is getting smaller and smaller, and the storage requirements for vehicle-mounted feedforward antennas are getting higher and higher. In addition, with the diversification of tasks and environments, greater challenges have been posed to the storage height and lightweight of vehicle-mounted feedforward antennas. At present, the feed device and antenna surface of this type of antenna are fixed in position, and the antenna will occupy a large amount of cabin space when stored, with low space utilization. The polarization device is located at the fixed support leg, and the feed device is not easy to disassemble and replace, and the maintainability and interchangeability are poor. In addition, the above-mentioned antenna surface is mostly made of composite sandwich material, the weight of the antenna surface is relatively high, and the requirements for the pitch transmission device are relatively high. Summary of the invention

[0003] The purpose of the present invention is to disclose a new type of vehicle-mounted forward feed antenna design, which is suitable for vehicle-mounted forward feed antennas with high requirements on storage height, cabin space occupancy and antenna weight. The storage space can be reduced when the antenna is in the stored state. At the same time, the feed source can be replaced according to actual needs, adapting to multi-task requirements and simple to operate.

[0004] In order to achieve the above purpose, the technical solution adopted by the present invention is:

[0005] A vehicle-mounted feedforward antenna reflector, comprising a feed support rod 5 and a connection locking device 4 for fixing the feed support rod 5; and further comprising a composite antenna surface 1, an antenna surface back frame 2, a connection support arm 3 and a feed mounting frame 6;

[0006] The feed mounting frame is supported above the composite antenna surface by a plurality of feed support rods; the connection locking device is installed on the front of the composite antenna surface, one end of the feed support rod is connected to the connection locking device, and the other end is connected to the feed mounting frame;

[0007] The antenna back frame is installed on the back side of the composite material antenna surface, and the antenna back frame is connected to the vehicle through a connecting arm.

[0008] Furthermore, the connection locking device corresponds to the feed support rod one by one, and the bottom end of the feed support rod is connected to the connection locking device.

[0009] Furthermore, the connection locking device is arranged on the front side of the composite material antenna surface through a support seat; the bottom of the support seat is adapted to the composite material antenna surface, and the top is connected to the connection locking device; the support seat is an I-shaped structure.

[0010] Furthermore, the connection locking device includes a locking slide 13, a fixing stud 14, a connection seat 15, a stopper 16, a shifting block 17 and a spring 18.

[0011] The connecting seat 15 includes a supporting portion and a vertical portion, and both the supporting portion and the vertical portion are plate-shaped structures; the vertical portion is arranged on the upper surface of the supporting portion, and the supporting portion is used to connect the supporting seat; the vertical portion is perpendicular to the supporting portion;

[0012] The vertical portion is provided with two through holes, the top through hole is located obliquely above the bottom through hole; the fixing stud is located in the bottom through hole and is locked by a quick-lock nut;

[0013] The stopper is fixed on one side of the vertical portion, and is provided with a through hole facing the top through hole; one end of the locking slide column passes through the through hole and the through hole in sequence, and is threadedly connected with the shift block 17 on the other side; the spring is sleeved on the locking slide column in the through hole, one end of the spring is against the inner edge of the locking slide column, and the other end is against the stopper.

[0014] Furthermore, the diameter of the shift block is larger than the diameter of the through hole.

[0015] Furthermore, the bottom of the feed support is provided with two through holes, corresponding to the locking slide column and the fixing stud respectively.

[0016] Furthermore, the feed support rod 5 is connected to the feed mounting bracket 6 via a star screw 9 in the unfolded state.

[0017] Furthermore, the composite material antenna surface includes a composite material grid antenna surface 10 and a composite material reinforcing rib 11 ; the composite material reinforcing rib is located on the back side of the composite material grid antenna surface 10 .

[0018] Compared with the background technology, the present invention has the following beneficial effects:

[0019] Compared with the prior art, the novel feedforward antenna design proposed in the present invention is mainly suitable for small-caliber portable UAV measurement and control antennas. It can reduce the space occupied by vehicle-mounted feedforward antennas, while reducing the weight of the antenna and improving the maintainability of the feedforward antenna.

[0020] The feed device of the vehicle-mounted feedforward antenna is fixed to the position of the antenna surface. When the antenna is stored, it will occupy a large amount of cabin space, and the space utilization rate is low. In addition, the antenna surface of the traditional feedforward parabolic antenna is a composite sandwich structure, which is heavy, and the feed strut fixing device is pre-buried inside the antenna surface, and the maintainability and interchangeability are poor. The new vehicle-mounted feedforward antenna design in the present invention can reduce the space when the antenna is stored, and at the same time can effectively reduce the weight of the antenna surface. In addition, the feed strut of this solution is easy to disassemble and has strong maintainability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1It is the front view of the vehicle-mounted feedforward antenna reflector proposed in the invention.

[0022] Figure 2 This is the main view of the feed support rod installation proposed by the invention.

[0023] Figure 3 It is a cross-sectional view of the feed support rod in the stowed state proposed by the invention.

[0024] Figure 4 It is a cross-sectional view of the support rod connection locking device.

[0025] Among them: 1. Composite antenna surface; 2. Antenna surface back frame; 3. Connecting arm; 4. Support rod connecting locking device; 5. Feed support rod; 6. Feed mounting frame; 7. Support seat; 8. Quick screw; 9 Star screw; 10. Composite grid antenna surface; 11. Composite reinforcement rib; 12. Fixing piece; 13. Locking slide column; 14. Fixing stud; 15. Connecting seat; 16. Block; 17. Shifting block; 18 Spring; DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0027] A novel vehicle-mounted feedforward antenna reflector design includes a composite material antenna surface 1, an antenna surface back frame 2, a connecting arm 3, a support rod connecting locking device 4, a feed source support rod 5, a feed source mounting frame 6 and a support seat 7;

[0028] The composite antenna surface 1 is connected to the antenna surface back frame 2 by bolts. The composite antenna surface includes a composite grid antenna surface 10 and a composite reinforcement rib 11. The composite antenna surface 1, the antenna surface back frame 2 and the connecting arm 3 together constitute a feedforward antenna reflection surface.

[0029] The support rod connection locking device 4, the support seat 7, the feed support rod 5 and the feed mounting frame 6 constitute the feed bracket. The support rod connection locking device 4 is connected to the support seat 7 by bolts, and the quick-install screws 8 and the support rod connection locking device 4 are used to fix the support rod in different states (expanded or stored).

[0030] Furthermore, when the feed support rod 5 is in the unfolded state, it is connected to the feed mounting frame 6 via the star-shaped screw 9, and the feed device can be fixed to the feed mounting frame 6 via the screw.

[0031] Further, by loosening the quick-release screw 8 and the locking slide column 13 in the support rod connection locking device 4, the feed support rod is adjusted to the storage state, and the feed support rod 5 is fixed by using the quick-release screw 8, the fixing piece 12 and the star screw 9.

[0032] like Figure 1As shown, a novel vehicle-mounted feedforward antenna reflector design is provided, comprising a composite antenna surface 1, an antenna surface back frame 2, a connecting arm 3, a support rod connecting locking device 4, a feed support rod 5, a feed mounting frame 6 and a support seat 7. The composite antenna surface 1 is connected to the antenna surface back frame 2 by bolts, and together with the connecting arm 3, the feedforward antenna surface is formed. The support rod connecting locking device 4 is connected to the antenna surface back frame 2 through the support seat 7, the root of the feed support rod 5 is fixed to the support rod connecting locking device 4 by a quick-release screw 8, the feed mounting frame 6 is located at the top of the feed support rod 5, and is locked by a star screw 9. Before the antenna is stored, the star screw 9 needs to be loosened and the feed mounting frame 6 needs to be disassembled.

[0033] like Figure 3 As shown, in the stowed state, the feed support rod 5 has two groups of opposite support rods overlapped and locked by a fixing member 12 and a star screw 9. Meanwhile, the quick-release screw 8 at the root of the feed support rod 4 is used to assist in fixing the feed support rod 5 in the stowed state.

[0034] like Figure 4 As shown, the support rod connection locking device 4 is composed of a locking slide post 13, a fixing stud 14, a connecting seat 15, a stopper 16, a shifting block 17, a spring 18, etc. When the antenna is in working state, the four feed support rods 5 are in an open state, and the locking slide post 13 is used to assist in fixing the feed support rod 5 to ensure the normal operation of the antenna; loosen the quick-release screw 8 and pull the locking slide post 13 at the same time to release the feed support rod lock.

[0035] The present invention can use a vehicle-mounted forward feed antenna with a simple structure, can reduce the space occupied by the antenna in a stored state, can lower the storage height of the antenna, and the feed source support rod can be quickly disassembled, and has strong maintainability and interchangeability.

Claims

1. A vehicle-mounted feedforward antenna transmitter, comprising a feed support rod (5) and a connection locking device (4) for fixing the feed support rod (5); characterized in that: It also includes a composite material antenna surface (1), an antenna surface back frame (2), a connecting support arm (3) and a feed source mounting frame (6); The feed mounting frame is supported above the composite antenna surface by a plurality of feed support rods; the connection locking device is installed on the front of the composite antenna surface, one end of the feed support rod is connected to the connection locking device, and the other end is connected to the feed mounting frame; The antenna back frame is installed on the back surface of the composite material antenna surface, and the antenna back frame is connected to the vehicle through a connecting arm.

2. The vehicle-mounted feedforward antenna transmitter according to claim 1, characterized in that: The connection locking device corresponds to the feed support rod one by one, and the bottom end of the feed support rod is connected to the connection locking device.

3. The vehicle-mounted feedforward antenna transmitter according to claim 1, characterized in that: The connection locking device is arranged on the front side of the composite material antenna surface through a support seat; the bottom of the support seat is adapted to the composite material antenna surface, and the top is connected to the connection locking device; the support seat is an I-shaped structure.

4. The vehicle-mounted feedforward antenna transmitter according to claim 1, characterized in that: The connection locking device comprises a locking slide post (13), a fixing stud (14), a connection seat (15), a stopper (16), a shifting block (17) and a spring (18). The connecting seat (15) comprises a supporting portion and a vertical portion, and both the supporting portion and the vertical portion are plate-shaped structures; the vertical portion is arranged on the upper surface of the supporting portion, and the supporting portion is used to connect the supporting seat; the vertical portion is perpendicular to the supporting portion; The vertical portion is provided with two through holes, the top through hole is located obliquely above the bottom through hole; the fixing stud is located in the bottom through hole and is locked by a quick-lock nut; The stopper is fixed on one side of the vertical portion, and is provided with a through hole facing the top through hole; one end of the locking slide column passes through the through hole and the through hole in sequence, and is threadedly connected with the shift block (17) on the other side; the spring is sleeved on the locking slide column in the through hole, one end of the spring abuts against the inner edge of the locking slide column, and the other end abuts against the stopper.

5. The vehicle-mounted feedforward antenna transmitter according to claim 4, characterized in that: The diameter of the shift block is greater than the diameter of the through hole.

6. The vehicle-mounted feedforward antenna transmitter according to claim 4, characterized in that: The bottom of the feed source support is provided with two through holes, corresponding to the locking slide column and the fixing stud respectively.

7. The vehicle-mounted feedforward antenna transmitter according to claim 1, characterized in that: The feed support rod 5 is connected to the feed mounting frame (6) via a star-shaped screw (9) when in an unfolded state.

8. The vehicle-mounted feedforward antenna transmitter according to claim 1, characterized in that: The composite material antenna surface comprises a composite material grid antenna surface (10) and composite material reinforcing ribs (11); the composite material reinforcing ribs are located on the back side of the composite material grid antenna surface (10).

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