Anti-winding wear-resistant active antenna

Abstract

The utility model discloses an anti-winding wear-resistant active antenna, which comprises a connector and an annular active antenna, two ends of the annular active antenna are respectively connected to two sides of the connector, one end of the connector is provided with a positioning block, a sliding rod is movably installed in the positioning block, one end of the sliding rod is provided with a positioning disc, and the positioning disc is provided with a positioning groove. By pressing the knob, the second spline is separated from the second spline hole, the first spline is always located in the first spline hole, the rotary disc is driven to rotate in the positioning disc while the knob is rotated, and the push rods extend outwards through cooperation between the arc-shaped grooves and the sliding shafts. Then a rotary knob is pulled to enable a second spline to enter a second spline hole, the rotary disc and the positioning disc are connected into a whole, rotation of the rotary disc is limited, and therefore the stability of the annular active antenna is guaranteed; and thus, the problem of poor signal receiving effect caused by antenna curling and winding is effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of active antennas, in particular to an anti-winding and wear-resistant active antenna. Background Art

[0002] Ring active antennas are often used in radio navigation and communication due to their good directivity and strong anti-interference ability. The existing plug-in ring active antennas are made of relatively soft materials due to their pluggable characteristics, but the antenna needs to be unfolded into a ring shape when in use. However, this type of antenna is prone to curling and winding, resulting in poor signal reception. Therefore, an anti-winding and wear-resistant active antenna is needed to meet people's needs. Summary of the invention

[0003] The purpose of the utility model is to provide an anti-winding and wear-resistant active antenna to solve the problem that the existing plug-in ring active antenna proposed in the above background technology needs to be unfolded into a ring shape when used, but this type of antenna is easy to curl and entangle, resulting in poor signal reception effect.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-winding and wear-resistant active antenna, comprising a connector and an annular active antenna, wherein two ends of the annular active antenna are respectively connected to two sides of the connector, a positioning block is arranged on one end of the connector, a sliding rod is movably installed in the positioning block, a positioning plate is arranged on one end of the sliding rod, a turntable is rotatably installed in the positioning plate, a plurality of arc grooves are provided on the turntable, a sliding shaft is slidably adapted in each arc groove, a push rod is provided at one end of each sliding shaft, a plurality of push rods are slidably installed in the positioning plate, a support block is provided on each push rod, and a plurality of support blocks are in contact with the inner ring of the annular active antenna, a first spline hole is provided at the center of the turntable, a first spline is slidably adapted in the first spline hole, a second spline is connected to the first spline, a second spline hole is provided on the positioning plate, the second spline is adapted in the second spline hole, and a knob is arranged on one end of the second spline located on the outer side of the positioning plate.

[0005] Preferably, the outer insulating layer of the annular active antenna is made of polyurethane.

[0006] Preferably, a bolt is internally threadedly connected to a side of the positioning block facing away from the connector, and the end of the threaded section of the bolt abuts against the sliding rod.

[0007] Preferably, the positioning plate is provided with guide grooves, which are distributed in the radial direction of the positioning plate, and the push rod is slidably installed in the guide grooves.

[0008] Preferably, both sides of the guide groove are provided with limit grooves, and both sides of the push rod are provided with limit blocks, and the limit blocks are slidably installed in the limit grooves.

[0009] Preferably, a semicircular groove is provided on the supporting block, and the annular active antenna is located in the semicircular groove.

[0010] Preferably, a spring is provided in the positioning plate, the spring is located in the first spline hole, and one end of the spring is in contact with the first spline.

[0011] The beneficial effects of the utility model are:

[0012] In the utility model, by pressing the knob, the second spline is separated from the second spline hole, and the first spline is always located in the first spline hole. When the knob is turned, the turntable is driven to rotate in the positioning plate. Through the cooperation between the arc groove and the sliding shaft, a plurality of push rods are extended outward, thereby driving the support block to open the annular active antenna outward and form a ring shape. Then, the knob is pulled to make the second spline enter the second spline hole, and the turntable and the positioning plate are connected as a whole, so as to limit the rotation of the turntable, thereby ensuring the stability of the annular active antenna, and then effectively preventing the problem of poor signal reception caused by the curling and winding of the antenna.

[0013] In the utility model, the polyurethane insulating layer is added to ensure the flexibility of the annular active antenna, while improving the wear resistance and anti-aging performance, so that the annular active antenna can resist the harsh external environment and greatly prolong the service life of the annular active antenna. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front view structural schematic diagram of an anti-winding and wear-resistant active antenna proposed by the utility model;

[0015] Figure 2 This is a rear view structural schematic diagram of an anti-winding and wear-resistant active antenna proposed by the utility model;

[0016] Figure 3 This is a schematic diagram of the side cross-sectional structure of an anti-winding and wear-resistant active antenna proposed by the utility model;

[0017] Figure 4 The utility model provides an anti-winding and wear-resistant active antenna Figure 3 The enlarged structural diagram at A in the middle;

[0018] Figure 5 This is a schematic diagram of the rear and top cross-sectional structure of a turntable of an anti-winding and wear-resistant active antenna proposed by the utility model;

[0019] Figure 6 It is a schematic diagram of the rear-view and top-view cross-sectional structure of the second spline of an anti-winding and wear-resistant active antenna proposed by the utility model;

[0020] Figure 7This is a schematic diagram of the front and top cross-sectional structure of a push rod of an anti-winding and wear-resistant active antenna proposed by the utility model.

[0021] In the figure: 1. connector; 2. annular active antenna; 3. positioning block; 4. sliding rod; 5. positioning plate; 6. turntable; 7. arc groove; 8. sliding shaft; 9. push rod; 10. support block; 11. first spline hole; 12. first spline; 13. second spline; 14. second spline hole; 15. knob; 16. bolt; 17. guide groove; 18. limit groove; 19. limit block; 20. semicircular groove; 21. spring. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-7 The invention discloses an anti-winding wear-resistant active antenna, comprising a connector 1 and a ring-shaped active antenna 2, wherein the two ends of the ring-shaped active antenna 2 are respectively connected to the two sides of the connector 1, a positioning block 3 is arranged on one end of the connector 1, a slide bar 4 is movably installed in the positioning block 3, a positioning plate 5 is arranged on one end of the slide bar 4, a turntable 6 is rotatably installed in the positioning plate 5, a plurality of arc grooves 7 are opened on the turntable 6, a sliding shaft 8 is slidably adapted in each arc groove 7, a push rod 9 is arranged at one end of each slide shaft 8, and a plurality of push rods 9 are arranged on the turntable 6. The rods 9 are all slidably installed in the positioning plate 5, and each push rod 9 is provided with a support block 10, and several support blocks 10 are in contact with the inner ring of the annular active antenna 2. A first spline hole 11 is opened at the center of the turntable 6, and a first spline 12 is slidably adapted in the first spline hole 11, and a second spline 13 is connected to the first spline 12. A second spline hole 14 is opened on the positioning plate 5, and the second spline 13 is adapted in the second spline hole 14. The second spline 13 is located on the outer side of the positioning plate 5 and a knob 15 is provided on one end.

[0024] Insert the two ends of the ring-shaped active antenna 2 into the connector 1 respectively, adjust the slide bar 4 to the appropriate position, press the knob 15, so that the second spline 13 is separated from the second spline hole 14, and the first spline 12 is always located in the first spline hole 11 at this time, and the turntable 6 is driven to rotate in the positioning plate 5 while turning the knob 15, and the arc groove 7 and the sliding shaft 8 cooperate to make a plurality of push rods 9 extend outward, thereby driving the support block 10 to open the ring-shaped active antenna 2 outward and form a ring, and then pull the knob 15 to make the second spline 13 enter the second spline hole 14, connect the turntable 6 and the positioning plate 5 into a whole, limit the rotation of the turntable 6, and prevent the push rod 9 from being retracted, thereby ensuring the stability of the ring-shaped active antenna 2, and then effectively preventing the problem of poor signal reception caused by the curling and winding of the antenna.

[0025] Specifically, in this embodiment, the outer insulating layer of the ring-shaped active antenna 2 is made of polyurethane, which ensures the flexibility of the ring-shaped active antenna 2, while improving the wear resistance and anti-aging performance, can withstand the harsh external environment, and greatly extend the service life of the ring-shaped active antenna 2.

[0026] Specifically, in the present embodiment, a bolt 16 is connected to the inner thread of the side of the positioning block 3 facing away from the connector 1, and the end of the threaded section of the bolt 16 abuts against the slide rod 4. The connection of the bolt 16 enables the slide rod 4 to be fixed and slid in the positioning block 3, thereby ensuring the stability of the positioning plate 5 when fixed and facilitating the adjustment of the center position of the positioning plate 5 according to the length of the annular active antenna 2 when sliding.

[0027] Specifically, in this embodiment, a guide groove 17 is provided on the positioning plate 5, and the guide groove 17 is distributed in the radial direction of the positioning plate 5. The push rod 9 is slidably installed in the guide groove 17, and the guide groove 17 provides a moving guide for the push rod 9, so that the support block 10 can smoothly contact the annular active antenna 2.

[0028] Specifically, in this embodiment, limiting grooves 18 are provided on both sides of the guide groove 17, and limiting blocks 19 are provided on both sides of the push rod 9. The limiting blocks 19 are slidably installed in the limiting grooves 18. The limiting grooves 18 and the limiting blocks 19 effectively prevent the push rod 9 from separating from the guide groove 17.

[0029] Specifically, in this embodiment, a semicircular groove 20 is formed on the support block 10 , and the annular active antenna 2 is located in the semicircular groove 20 . The semicircular groove 20 accommodates the annular active antenna 2 , thereby limiting the separation of the annular active antenna 2 from the support block 10 .

[0030] Specifically, in this embodiment, a spring 21 is provided in the positioning disk 5, and the spring 21 is located in the first spline hole 11. One end of the spring 21 is in contact with the first spline 12. The elastic force of the spring 21 ensures that the second spline 13 is always located in the second spline hole 14 when not under pressure, thereby preventing the turntable 6 from rotating and the push rod 9 from being retracted.

[0031] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. An anti-winding and wear-resistant active antenna, comprising a connector (1) and a ring-shaped active antenna (2), characterized in that: The two ends of the annular active antenna (2) are respectively connected to the two sides of the connector (1); a positioning block (3) is provided on one end of the connector (1); a slide bar (4) is movably installed in the positioning block (3); a positioning plate (5) is provided on one end of the slide bar (4); a rotating plate (6) is rotatably installed in the positioning plate (5); a plurality of arc grooves (7) are provided on the rotating plate (6); a sliding shaft (8) is slidably adapted in each arc groove (7); a push rod (9) is provided at one end of each sliding shaft (8); a plurality of push rods (9) are slidably installed in the positioning plate (5); each arc groove (7) is slidably adapted in each arc groove (7); a push rod (9) is provided at one end of each sliding shaft (8); a plurality of push rods (9) are slidably installed in the positioning plate (5); each push rod (9) is ... Each push rod (9) is provided with a support block (10), and a plurality of support blocks (10) are in contact with the inner ring of the annular active antenna (2). A first spline hole (11) is provided at the center of the turntable (6), a first spline (12) is slidably adapted in the first spline hole (11), a second spline (13) is connected to the first spline (12), a second spline hole (14) is provided on the positioning plate (5), the second spline (13) is adapted in the second spline hole (14), and a knob (15) is provided on one end of the second spline (13) located outside the positioning plate (5).

2. The anti-winding and wear-resistant active antenna according to claim 1, characterized in that: The outer insulating layer of the annular active antenna (2) is made of polyurethane.

3. The anti-winding and wear-resistant active antenna according to claim 1, characterized in that: A bolt (16) is internally threadedly connected to a side of the positioning block (3) facing away from the connector (1), and the end of the threaded section of the bolt (16) abuts against the slide rod (4).

4. The anti-winding and wear-resistant active antenna according to claim 1, characterized in that: The positioning plate (5) is provided with a guide groove (17), the guide groove (17) is distributed in the radial direction of the positioning plate (5), and the push rod (9) is slidably mounted in the guide groove (17).

5. The anti-winding and wear-resistant active antenna according to claim 4, characterized in that: Limiting grooves (18) are provided on both sides of the guide groove (17), and limiting blocks (19) are provided on both sides of the push rod (9), and the limiting blocks (19) are slidably installed in the limiting grooves (18).

6. The anti-winding and wear-resistant active antenna according to claim 1, characterized in that: The support block (10) is provided with a semicircular groove (20), and the annular active antenna (2) is located in the semicircular groove (20).

7. The anti-winding and wear-resistant active antenna according to claim 1, characterized in that: A spring (21) is disposed in the positioning plate (5), the spring (21) is located in the first spline hole (11), and one end of the spring (21) is in contact with the first spline (12).

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