Vehicle-mounted feed-forward antenna transmitter

Abstract

The utility model 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 when the antenna is in a collection state, the feed source can be replaced according to actual requirements, the device is suitable for multi-task requirements, and the operation is simple.

Description

Technical Field

[0001] The utility model 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] Currently, to meet height restrictions on railways and highways, the storage space for onboard feedforward antennas is shrinking, placing increasing demands on their storage. Furthermore, the diversification of missions and environments poses greater challenges in terms of storage height and lightweight design. Currently, the feed device and antenna surface of this type of antenna are fixed in position, occupying a significant amount of cabin space when stowed, resulting in low space utilization. The polarization device is located on a fixed support leg, making the feed device difficult to disassemble and replace, resulting in poor maintainability and interchangeability. Furthermore, the antenna surface is often constructed of composite sandwich materials, resulting in a relatively heavy antenna surface and placing high demands on the pitch transmission mechanism. Utility Model Content

[0003] The purpose of this utility model is to disclose a new type of vehicle-mounted feedforward antenna design, which is suitable for vehicle-mounted feedforward 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 operation.

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

[0005] A vehicle-mounted feedforward antenna reflector includes a feed support rod 5 and a connection locking device 4 for fixing the feed support rod 5; and further includes 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 surface 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 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 shift 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 provided 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 being 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 passes through the through hole and the through hole in sequence, and is threadedly connected to the shift block 17 on the other side; the spring is sleeved on the locking slide in the through hole, one end of the spring rests on the inner edge of the locking slide, and the other end rests on 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-shaped 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 existing technology, the new feedforward antenna design proposed in this utility model 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 antenna weight 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 takes up a large amount of cabin space, resulting in low space utilization. In addition, the antenna surface of a traditional feedforward parabolic antenna is a composite sandwich structure, which is heavy, and the feed support rod fixing device is pre-embedded inside the antenna surface, which has poor maintainability and interchangeability. The new vehicle-mounted feedforward antenna design in the utility model can reduce the space required when the antenna is stored, while effectively reducing the weight of the antenna surface. In addition, the feed support rod of this solution is easy to disassemble, which has strong maintainability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a front view of the vehicle-mounted feedforward antenna reflector proposed in the utility model.

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

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

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

[0025] Wherein: 1. Composite antenna surface; 2. Antenna surface back frame; 3. Connecting arm; 4. Support rod connection locking device; 5. Feed support rod; 6. Feed mounting bracket; 7. Support base; 8. Quick-release screw; 9. Star screw; 10. Composite grid antenna surface; 11. Composite reinforcement rib; 12. Fastener; 13. Locking slide; 14. Fixing stud; 15. Connecting base; 16. Stop block; 17. Shift block; 18. Spring DETAILED DESCRIPTION

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

[0027] A novel vehicle-mounted feedforward antenna reflector design includes a composite antenna surface 1, an antenna surface back frame 2, a connecting arm 3, a support rod connection locking device 4, a feed support rod 5, a feed mounting frame 6, and a support base 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 the feedforward antenna reflector surface.

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

[0030] Furthermore, when the feed support rod 5 is unfolded, it is connected to the feed mounting frame 6 via a 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 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 using the quick-release screw 8, the fixing piece 12 and the star-shaped screw 9.

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

[0033] like Figure 3 As shown, in the stowed state, the feed support rod 5 is in two groups of overlapping opposite rods, and is locked by a fixing piece 12 and a star screw 9. At the same time, 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 rod connection locking device 4 consists of a locking slide 13, a fixing screw 14, a connecting seat 15, a stop 16, a shift block 17, and a spring 18. When the antenna is in operation, the four feed rods 5 are in the open state. The locking slide 13 is used to help fix the feed rods 5 to ensure normal operation of the antenna. The feed rods can be unlocked by loosening the quick-release screw 8 and pulling the locking slide 13 at the same time.

[0035] The utility model can be used as a vehicle-mounted feedforward antenna, has a simple structure, can reduce the space occupied by the antenna in a stored state, lowers the storage height of the antenna, and the feed source support rod can be quickly disassembled, with 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 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 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 (13), a fixing stud (14), a connection seat (15), a stopper (16), a shifting block (17) and a spring (18). 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 provided 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 being 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 passes through the through hole and the through hole in sequence and is threadedly connected to the shift block (17) on the other side; the spring is sleeved on the locking slide in the through hole, one end of the spring rests on the inner edge of the locking slide and the other end rests on the stopper.

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