Rotary locking structure

Abstract

The utility model discloses a rotation locking structure, which relates to the field of direction-finding antennas and comprises an antenna adapter, a shaft of the antenna adapter is rotatably arranged on a mounting plate through a bearing, the mounting plate is fixed on a support column, the shaft of the antenna adapter is fixedly sleeved with a turntable, the side wall of the turntable is provided with an annular groove, the turntable is sleeved with a pull rope, and the pull rope is annular. A plurality of limiting grooves are formed in the end face, close to the mounting plate, of the rotating disc, the limiting grooves are formed in the circumferential direction of the rotating disc, the limiting grooves penetrate through the side wall of the rotating disc, a corner piece is rotationally arranged on the mounting plate, and a protrusion is fixed to the side, close to the rotating disc, of the corner piece; the corner piece rotates to enable the protrusion to be matched in the limiting groove or enable the protrusion to be separated from the limiting groove, the adjusted position of the direction-finding antenna can be locked, a pull rope does not need to be fixed, operation is easy and fast, and the direction-finding precision and efficiency of the antenna are improved.

Description

Technical Field

[0001] This utility model relates to the field of direction finding antenna technology, specifically a rotation locking structure. Background Technology

[0002] In current direction-finding technologies, many direction-finding antennas are required to perform direction finding in either the horizontal or vertical direction to meet communication and positioning needs. However, in antenna direction finding, the high elevation of the antenna makes rotation inconvenient. Using a rope to drive the rotation and then securing the rope often results in inaccurate angles due to the rope's flexibility, and tying the rope is time-consuming. Given the pursuit of higher accuracy and efficiency, designing a mechanism that allows for rapid rotation and automatic locking after rotation is crucial. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a rotation locking structure to solve the shortcomings of the prior art.

[0004] The purpose of this utility model is achieved through the following technical solution: a rotating locking structure includes an antenna adapter, the shaft of which is rotatably mounted on a mounting plate via a bearing, the mounting plate being fixed to a support column, a turntable being fixedly sleeved on the shaft of the antenna adapter, an annular groove being formed on the side wall of the turntable, a pull rope being sleeved on the turntable, the pull rope being annular, one end of the pull rope being sleeved in the annular groove, and the other end extending along the bottom end of the support column, a plurality of limiting grooves being formed on the end face of the turntable near the mounting plate, the plurality of limiting grooves being arranged along the circumference of the turntable, the limiting grooves passing through the side wall of the turntable, a bent corner piece being rotatably mounted on the mounting plate, a protrusion being fixed on the side of the bent corner piece near the turntable, the bent corner piece being rotated to adapt the protrusion to the limiting groove or to disengage the protrusion from the limiting groove.

[0005] Furthermore, the corner piece is fixed with a rotating shaft, the rotating shaft is rotatably connected to the mounting plate, and a torsion spring is fitted on the rotating shaft. One torsion foot of the torsion spring contacts the inner wall of the corner piece, and the other torsion foot of the torsion spring contacts the protruding post on the mounting plate.

[0006] Furthermore, two of the corner pieces are symmetrically arranged in the horizontal direction.

[0007] Furthermore, a guide block is fixed on the corner piece, and the guide block has a small hole for the pull rope to pass through.

[0008] Furthermore, two sets of guide components are symmetrically arranged along the horizontal direction on the mounting plate. Each guide component includes two fixed pulleys, which are rotatably connected to the mounting plate. The pull rope passes between the two fixed pulleys.

[0009] The beneficial effects of this utility model are:

[0010] Pull the pull rope. When the rope is taut, it pulls the bend to rotate, causing the bend to protrude out of the turntable's limiting groove. Then, the pull rope drives the turntable to rotate. When the turntable reaches the set angle, release the pull rope. Under the action of the torsion spring, the bend protrudes into the turntable's limiting groove, locking the turntable. This locks the adjusted position of the direction-finding antenna without requiring a fixed pull rope, making the operation simple and quick, and improving the accuracy and efficiency of antenna direction finding. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of a rotating locking structure according to the present invention;

[0012] Figure 2 This is a schematic diagram of the turntable in a rotating locking structure according to the present invention;

[0013] Figure 3 This is a schematic diagram of the bent corner component in a rotating locking structure according to this utility model;

[0014] In the diagram, 1-antenna adapter, 2-mounting plate, 3-turntable, 4-annular groove, 5-pull rope, 6-limiting groove, 7-corner piece, 8-protrusion, 9-rotating shaft, 10-torsion spring, 11-protruding column, 12-guide block, 13-fixed pulley. Detailed Implementation

[0015] Example 1

[0016] like Figures 1 to 3 As shown, a rotating locking structure includes an antenna adapter 1. The shaft of the antenna adapter 1 is rotatably mounted on a mounting plate 2 via bearings. The mounting plate 2 is fixed to a support column 1. A turntable 3 is fixedly sleeved on the shaft of the antenna adapter 1. An annular groove 4 is formed on the side wall of the turntable 3. A pull rope 5 is sleeved on the turntable 3. The pull rope 5 is annular, with one end of the pull rope 5 sleeved in the annular groove 4 and the other end extending along the bottom end of the support column 1. Several limiting grooves 6 are formed on the end face of the turntable 3 near the mounting plate 2. The limiting grooves 6 are arranged along the circumference of the turntable 3 and pass through the side wall of the turntable 3. A bend 7 is rotatably mounted on the mounting plate 2, and the bend 7 is close to the turntable. A protrusion 8 is fixed on one side of the turntable 3. The bend 7 rotates to fit the protrusion 8 into the limiting groove 6 or to disengage the protrusion 8 from the limiting groove 6. When it is necessary to rotate the antenna adapter 1, first move the protrusion 8 of the bend 7 out of the limiting groove 6 to unlock the rotational freedom of the turntable 3. Then pull the pull rope 5 to drive the turntable 3 and the antenna adapter 1 to deflect together, thereby achieving the effect of remotely adjusting the position of the antenna adapter. When the desired position is reached, the bend 7 resets, and the protrusion 8 fits into the limiting groove 6, thereby locking the adjustment position of the turntable 3. The pull rope does not need to be fixed, making the operation simple and quick, and improving the accuracy and efficiency of antenna direction finding.

[0017] Example 2

[0018] Based on Example 1, such as Figures 1 to 3 As shown, the bend 7 is fixed with a rotating shaft 9, which is rotatably connected to the mounting plate 2. A torsion spring 10 is fitted on the rotating shaft 9. One torsion foot of the torsion spring 10 contacts the inner wall of the bend 7, and the other torsion foot contacts the protruding post 11 on the mounting plate 2. Two bends 7 are symmetrically arranged in the horizontal direction. A guide block 12 is fixed on the bend 7. The guide block 12 has a small hole for the pull rope 5 to pass through. Under the action of the torsion spring 10, the protrusion 8 is fitted into the limiting groove 6, and the axis of the small hole is set at a certain angle with the pull rope 5, so that the pull rope 5 is in a slack state under normal conditions and needs to be adjusted. When adjusting the position of antenna adapter 1, first straighten the pull rope 5. The taut pull rope will cause the bend 7 to deflect, making the axis of the small hole parallel to the pull rope 5. The deflection of the bend 7 will compress the torsion spring 10. At this time, the protrusion 8 of the bend 7 will disengage from the limiting groove 6, unlocking the rotational freedom of the turntable 3. Now, by pulling the pull rope 5, the turntable 3 and antenna adapter 1 can be deflected to complete the direction adjustment. After the adjustment is completed, release the pull rope 5. Under the force of the torsion spring 10, the bend 7 will return to its original position, and the protrusion 8 will fit into the limiting groove 6 to lock the position of the turntable 3 and antenna adapter 1.

[0019] Example 3

[0020] Based on Embodiment 2, two sets of guide components are symmetrically arranged on the mounting plate 2 along the horizontal direction. The guide components include two fixed pulleys 13, which are rotatably connected to the mounting plate 2. The pull rope 5 passes between the two fixed pulleys 13 and guides the pull rope 5 through the fixed pulleys 13, so that the pull rope 5 can smoothly drive the bend 7 to deflect.

Claims

1. A rotation locking structure, comprising an antenna adapter (1), characterized in that, The shaft of the antenna adapter (1) is rotatably mounted on the mounting plate (2) via a bearing. The mounting plate (2) is fixed to the support column. A turntable (3) is fixedly sleeved on the shaft of the antenna adapter (1). An annular groove (4) is opened on the side wall of the turntable (3). A pull rope (5) is sleeved on the turntable (3). The pull rope (5) is annular. One end of the pull rope (5) is sleeved in the annular groove (4), and the other end extends along the bottom end of the support column. The turntable (3) A plurality of limiting grooves (6) are provided on the end face near the mounting plate (2). The plurality of limiting grooves (6) are arranged along the circumferential direction of the turntable (3). The limiting grooves (6) pass through the side wall of the turntable (3). A bent corner piece (7) is rotatably provided on the mounting plate (2). A protrusion (8) is fixed on the side of the bent corner piece (7) near the turntable (3). The bent corner piece (7) rotates to make the protrusion (8) fit into the limiting groove (6) or to make the protrusion (8) disengage from the limiting groove (6).

2. The rotation locking structure according to claim 1, characterized in that, The corner piece (7) is fixed with a rotating shaft (9), which is rotatably connected to the mounting plate (2). A torsion spring (10) is fitted on the rotating shaft (9). One torsion foot of the torsion spring (10) contacts the inner wall of the corner piece (7), and the other torsion foot of the torsion spring (10) contacts the protruding post (11) on the mounting plate (2).

3. The rotation locking structure according to claim 2, characterized in that, Two of the corner pieces (7) are symmetrically arranged in the horizontal direction.

4. The rotation locking structure according to claim 1, characterized in that, A guide block (12) is fixed on the corner piece (7), and a small hole is provided on the guide block (12) for the pull rope (5) to pass through.

5. The rotation locking structure according to claim 1, characterized in that, Two sets of guide components are symmetrically arranged on the mounting plate (2) along the horizontal direction. The guide components include two fixed pulleys (13). The fixed pulleys (13) are rotatably connected to the mounting plate (2). The pull rope (5) passes between the two fixed pulleys (13).

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