Broadcast transmitting antenna

Abstract

The utility model relates to the technical field of antenna equipment, in particular to a broadcast transmitting antenna, which comprises a top plate, an antenna mast is rotatably connected to the outer side of the top plate, and an angle limiting structure is arranged at the rotational joint; an outer pipe is fixedly connected to the lower portion of the top plate, an inner pipe is sleeved with the outer pipe, a bottom plate is fixedly connected to the lower portion of the inner pipe, a screw is rotationally connected to the bottom plate, a ring is in threaded connection with the screw, a connecting rod is rotationally connected to the outer wall of the ring, a first long groove is formed in the outer wall of the outer pipe, and a second long groove aligned with the first long groove is formed in the outer wall of the inner pipe. A supporting rod is rotationally connected to the outer side of the bottom plate, the connecting rod penetrates out of the first long groove and the second long groove and is rotationally connected with the supporting rod, a shaft groove is formed in the screw, a square shaft is sleeved with the shaft groove, a circular shaft is arranged on the upper portion of the square shaft, and the circular shaft is rotationally connected with the top plate and fixedly connected with a rotary knob after penetrating out of the top plate. The folding and stretching type folding chair can be folded and stretched to be convenient to store and carry.

Description

Technical Field

[0001] The utility model relates to the technical field of antenna equipment, in particular to a broadcast transmitting antenna. Background Art

[0002] An antenna is a converter that converts guided waves propagating on a transmission line into electromagnetic waves propagating in an unbounded medium, or vice versa. It is a component used to transmit or receive electromagnetic waves in radio equipment. Depending on the usage environment, some antennas need to be set up and used outdoors, so portability needs to be considered.

[0003] An existing invention patent with publication number CN115296002A discloses a portable foldable outdoor antenna, which achieves antenna height adjustment by adopting gear rack engagement. However, the overall length of the antenna is relatively long. Even when it is lowered to the lowest position, the vertical plate is still very long, and the antenna cannot be folded and cannot be folded and carried to a large extent. Utility Model Content

[0004] The utility model aims to provide a broadcast transmitting antenna which can be folded and retracted for storage and carrying.

[0005] To achieve the above object, the utility model provides the following technical solution: a broadcast transmitting antenna, comprising a top plate, the outer side of the top plate is rotatably connected to an antenna rod and an angle limiting structure is provided at the rotation connection;

[0006] The lower part of the top plate is fixedly connected with an outer tube, the inner part of the outer tube is sleeved with an inner tube, the lower part of the inner tube is fixedly connected with a bottom plate, the bottom plate is rotatably connected with a screw, a ring is threadedly connected to the screw, and a connecting rod is rotatably connected to the outer wall of the ring, the outer wall of the outer tube is provided with a first long groove, the outer wall of the inner tube is provided with a second long groove aligned with the first long groove, the outer side of the bottom plate is rotatably connected with a support rod, the connecting rod passes through the first long groove and the second long groove and is rotatably connected to the support rod, an axial groove is provided inside the screw, a square shaft is sleeved in the axial groove, a round shaft is provided on the upper part of the square shaft, the round shaft is rotatably connected to the top plate and is fixedly connected to a knob after passing through the top plate;

[0007] A height limiting structure is provided between the inner tube and the outer tube.

[0008] Optionally, the height limiting structure includes a third long groove opened on the outer wall of the outer tube, a limiting screw is provided at the third long groove, the nut of the limiting screw is pressed on the outer wall of the outer tube, and the screw rod of the limiting screw is threadedly connected to the outer wall of the upper part of the inner tube.

[0009] Optionally, the lower portion of the first long groove is not closed, and the upper portion of the second long groove is not closed.

[0010] Optionally, the angle limiting structure includes a fixed plate fixedly connected to the outer wall of the top plate, the fixed plate is penetrated by a fixing screw, a movable plate is sleeved on the fixing screw, the movable plate is fixedly connected to the antenna pole, one end of the fixing screw is threadedly connected to a nut, and the opposite surfaces of the movable plate and the fixed plate are provided with locking teeth.

[0011] Optionally, it also includes a spring sleeved on the fixing screw, and two ends of the spring are respectively against the moving plate and the nut.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. In the utility model, the inner tube is telescopic relative to the outer tube, so the height of the antenna pole can be adjusted, and the angle of the antenna pole can be adjusted to achieve better signal transmission effect;

[0014] 2. The support rod and the antenna rod of the utility model can be folded and can be adjusted in height so as to be stored and carried to a great extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the height limiting structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the angle limiting structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the utility model from the front;

[0018] Figure 4 For the utility model along Figure 3 Sectional view at AA in the middle;

[0019] Figure 5 This is a diagram of the utility model in use after it is unfolded.

[0020] In the figure: 1. top plate; 2. antenna rod; 3. outer tube; 4. inner tube; 5. bottom plate; 6. screw; 7. ring; 8. connecting rod; 9. first long groove; 10. second long groove; 11. support rod; 12. shaft groove; 13. square shaft; 14. knob; 15. third long groove; 16. limit screw; 17. fixed plate; 18. fixing screw; 19. moving plate; 20. nut; 21. latch tooth; 22. spring; 23. round shaft. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figures 1 to 5 The embodiment of the utility model provides a broadcast transmitting antenna, including a top plate 1, the outer side of the top plate 1 is rotatably connected to an antenna rod 2 and an angle limiting structure is provided at the rotation connection.

[0023] Specifically, the angle limiting structure includes a fixed plate 17 fixedly connected to the outer wall of the top plate 1, a fixing screw 18 passes through the fixed plate 17, a movable plate 19 is sleeved on the fixing screw 18, the movable plate 19 is fixedly connected to the antenna rod 2, one end of the fixing screw 18 is threadedly connected to a nut 20, and the opposite surfaces of the movable plate 19 and the fixed plate 17 are provided with latching teeth 21. Through the engagement of the latching teeth 21 on both sides, the rotation angle of the antenna rod 2 can be limited, so that the antenna can be adjusted to a suitable angle when in use, so that the signal transmission effect is better, and when not in use, it can be folded and stored for easy carrying.

[0024] Furthermore, it also includes a spring 22 sleeved on the fixing screw 18, and the two ends of the spring 22 are respectively against the movable plate 19 and the nut 20. The elastic force of the spring 22 is utilized to make the clamping effect of the two-sided clamping teeth 21 better and the angle limiting effect better.

[0025] An outer tube 3 is fixedly connected to the lower part of the top plate 1, an inner tube 4 is sleeved inside the outer tube 3, a bottom plate 5 is fixedly connected to the lower part of the inner tube 4, a screw 6 is rotatably connected to the bottom plate 5, a ring 7 is threadedly connected to the screw 6, a connecting rod 8 is rotatably connected to the outer wall of the ring 7, a first long groove 9 is provided on the outer wall of the outer tube 3, a second long groove 10 aligned with the first long groove 9 is provided on the outer wall of the inner tube 4, a support rod 11 is rotatably connected to the outer side of the bottom plate 5, the connecting rod 8 passes through the first long groove 9 and the second long groove 10 and is rotatably connected to the support rod 11, when the screw 6 is driven to rotate, the ring 7 can be driven to move in a straight line along the axial direction of the screw 6, the supporting rod 11 can be driven to unfold or fold through the connecting rod 8, the supporting rod 11 can stably support the antenna when unfolding, and it can be convenient to carry when folded.

[0026] An axial groove 12 is provided inside the screw rod 6, and a square shaft 13 is sleeved in the axial groove 12. A round shaft 23 is provided on the upper part of the square shaft 13. The round shaft 23 is rotatably connected to the top plate 1 and is fixedly connected to the knob 14 after passing through the top plate 1. Since the inner tube 4 can be telescopically adjusted along the axial direction inside the outer tube 3, the antenna rod 2 can be adjusted to an appropriate height to achieve a better signal transmission effect. It is worth mentioning that during the telescopic adjustment, the square shaft 13 will also telescopically extend and retract along the axial direction inside the axial groove 12, and will not change the state of the support rod 11 at this time. At the same time, when holding the knob 14, it will still drive the screw rod 6 to rotate.

[0027] A height limiting structure is provided between the inner tube 4 and the outer tube 3. Specifically, the height limiting structure includes a third long groove 15 opened on the outer wall of the outer tube 3. A limiting screw 16 is provided at the third long groove 15. The nut of the limiting screw 16 is pressed on the outer wall of the outer tube 3. The screw rod of the limiting screw 16 is threadedly connected to the outer wall of the upper part of the inner tube 4. By tightening the limiting screw 16, the nut of the limiting screw 16 is squeezed against the outer wall of the third long groove 15, thereby achieving the purpose of limiting the telescopic movement of the inner tube 4.

[0028] The lower part of the first long groove 9 is not closed, and the upper part of the second long groove 10 is not closed, so that after the inner tube 4 extends out of the lower part of the outer tube 3, the connection between the ring 7 and the connecting rod 8 will slide from the first long groove 9 to the second long groove 10.

[0029] It should be understood that the above description is merely exemplary and the embodiments of the present application do not limit this.

[0030] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A broadcast transmitting antenna, comprising a top plate (1), characterized in that: The outer side of the top plate (1) is rotatably connected to an antenna rod (2), and an angle limiting structure is provided at the rotatable connection; The lower part of the top plate (1) is fixedly connected to an outer tube (3), the inner part of the outer tube (3) is sleeved with an inner tube (4), the lower part of the inner tube (4) is fixedly connected to a bottom plate (5), a screw rod (6) is rotatably connected to the bottom plate (5), a ring (7) is threadedly connected to the screw rod (6), a connecting rod (8) is rotatably connected to the outer wall of the ring (7), a first long groove (9) is provided on the outer wall of the outer tube (3), and a second long groove aligned with the first long groove (9) is provided on the outer wall of the inner tube (4) (10), the outer side of the bottom plate (5) is rotatably connected to a support rod (11), the connecting rod (8) passes through the first long groove (9) and the second long groove (10) and is rotatably connected to the support rod (11), the screw rod (6) is provided with an axial groove (12) inside, a square shaft (13) is sleeved in the axial groove (12), a round shaft (23) is provided on the upper part of the square shaft (13), the round shaft (23) is rotatably connected to the top plate (1) and is fixedly connected to a knob (14) after passing through the top plate (1); A height limiting structure is provided between the inner tube (4) and the outer tube (3).

2. A broadcast transmitting antenna according to claim 1, characterized in that: The height limiting structure comprises a third long groove (15) formed on the outer wall of the outer tube (3); a limiting screw (16) is provided at the third long groove (15); a nut of the limiting screw (16) is pressed against the outer wall of the outer tube (3); and a screw rod of the limiting screw (16) is threadedly connected to the outer wall of the upper part of the inner tube (4).

3. A broadcast transmitting antenna according to claim 2, characterized in that: The lower part of the first long groove (9) is not closed, and the upper part of the second long groove (10) is not closed.

4. A broadcast transmitting antenna according to claim 1, characterized in that: The angle limiting structure comprises a fixed plate (17) fixedly connected to the outer wall of the top plate (1), a fixing screw (18) passing through the fixed plate (17), a movable plate (19) sleeved on the fixing screw (18), the movable plate (19) being fixedly connected to the antenna rod (2), a nut (20) being threadedly connected to one end of the fixing screw (18), and latch teeth (21) being provided on opposite surfaces of the movable plate (19) and the fixed plate (17).

5. A broadcast transmitting antenna according to claim 4, characterized in that: It also includes a spring (22) sleeved on the fixing screw (18), and two ends of the spring (22) are respectively against the moving plate (19) and the nut (20).

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