Helmet support convenient to adjust

Abstract

The utility model relates to a support, in particular to a helmet support convenient to adjust, which comprises a base fixed on a helmet, a sliding seat is connected onto the base in a sliding manner, a round hole is formed in the top of the sliding seat, a rotating shaft is movably arranged in the round hole, a connecting arm is connected between two ends of the rotating shaft, and the connecting arm is connected with the sliding seat. A plurality of grooves are formed in the inner side of the sliding seat, the grooves are communicated with the round holes, positioning assemblies are arranged in the grooves, the positioning assemblies are used for enabling the connecting arms and the sliding seat to keep a specific angle, and the ends, away from the rotating shaft, of the connecting arms are rotationally connected with vertical frames. The angle of the night vision device can be adjusted by unscrewing the butterfly bolt, pushing the vertical frame to rotate around the end of the connecting arm and screwing the butterfly bolt, the height position of the night vision device can be adjusted by unscrewing the fastener and shifting the sliding seat to move on the base, and a user can use the night vision device conveniently.

Description

Technical Field

[0001] The utility model relates to a bracket, in particular to a helmet bracket convenient for adjustment. Background Art

[0002] A night vision device is a night external sight with an image intensifier as the core device. When it works, it does not use an infrared searchlight to illuminate the target, but uses the light reflected by the target under weak light to pass through the image intensifier and be enhanced into a visible image that can be sensed by the human eye on the fluorescent screen to observe and aim at the target. When in use, the night vision device is usually installed on the helmet with a night vision device bracket, and then the night vision device is fixed on the helmet through the bracket.

[0003] The patent with the patent announcement number of CN218645150U discloses a night vision device bracket capable of flipping adjustment. In this application, the bending angle of the bent arm section in the bending arm is configured to make the night vision device close to the user's eyes, but no height adjustment and angle adjustment structures are provided. After the night vision device is close to the user's eyes, the height position and angle of the night vision device cannot be adjusted, which is inconvenient to use. Content of the Utility Model

[0004] In order to overcome the disadvantages that the above patent does not have height adjustment and angle adjustment structures, and the height position and angle of the night vision device cannot be adjusted after the night vision device is close to the user's eyes, which is inconvenient to use, the technical problem to be solved by the utility model is to provide a helmet bracket convenient for adjustment.

[0005] To solve the above technical problem, the utility model provides such a helmet bracket convenient for adjustment, which includes a base fixed on the helmet. A sliding seat is slidably connected to the base. A round hole is opened at the top of the sliding seat. A rotating shaft is movably arranged in the round hole. A connecting arm is connected between the two ends of the rotating shaft. A plurality of grooves are opened inside the sliding seat. The grooves are communicated with the round hole. A positioning component is arranged in the grooves. The positioning component is used to keep the connecting arm at a specific angle with the sliding seat. One end of the connecting arm away from the rotating shaft is rotatably connected to a vertical frame. A guide rail is arranged on the side surface of the vertical frame. A lifting seat is slidably connected to the guide rail. A U-shaped clamp is arranged on one side of the lifting seat away from the guide rail. The U-shaped clamp is connected to the lifting seat through an inner hexagon bolt.

[0006] Preferably, the positioning component includes a spring and a ball. A spring is arranged at the lower part inside the groove. A ball is arranged at the upper part inside the groove. The spring is used to provide an upward thrust to the ball so that the ball abuts against the outer surface of the rotating shaft. A plurality of card slots adapted to the balls are symmetrically opened in the middle of the rotating shaft.

[0007] Preferably, a fastener is arranged between the sliding seat and the base. The fastener is used to fix the sliding seat and the base.

[0008] Preferably, a wing nut is threadedly connected to one side of the vertical frame, and the wing nut abuts against the connecting arm for fixing the connecting arm and the vertical frame.

[0009] Preferably, an adjusting bolt is threadedly connected to the lifting seat, and the adjusting bolt contacts the side of the guide rail.

[0010] Preferably, a rubber block is provided inside the U-shaped clamp.

[0011] The beneficial effects of the present utility model are as follows: By loosening the wing nut and pushing the vertical frame to rotate around the end of the connecting arm, and then tightening the wing nut, the angle of the night vision device can be adjusted. By loosening the fastener and moving the sliding seat on the base, the height position of the night vision device can be adjusted, which is convenient for users to use. Description of the Drawings

[0012] Figure 1 is a three-dimensional structural schematic diagram of the present utility model.

[0013] Figure 2 is a three-dimensional structural schematic diagram of the sliding seat of the present utility model.

[0014] Figure 3 is a structural schematic diagram of the present utility model removing the base and the sliding seat.

[0015] Figure 4 is a structural schematic diagram of the spring and the detent ball of the present utility model.

[0016] Figure 5 is a diagram of the use state of the present utility model.

[0017] The reference signs in the drawings are: 1 - base, 2 - sliding seat, 3 - fastener, 4 - rotating shaft, 5 - connecting arm, 6 - card slot, 7 - groove, 8 - spring, 9 - detent ball, 10 - vertical frame, 11 - wing nut, 12 - guide rail, 13 - lifting seat, 14 - adjusting bolt, 15 - U-shaped clamp, 16 - rubber block, 100 - helmet, 200 - night vision device. Detailed Embodiments

[0018] The present utility model will be further described below with reference to the drawings and embodiments.

[0019] Embodiment 1

[0020] A helmet bracket that is easy to adjust, as Figures 1 - 5As shown in the figure, it includes a base 1. A sliding seat 2 is slidably connected to the base 1, and the base 1 can slide up and down along the sliding seat 2. A round hole is opened at the top of the sliding seat 2, and a rotating shaft 4 is movably arranged in the round hole. The rotating shaft 4 can rotate in the round hole. A connecting arm 5 is connected between the two ends of the rotating shaft 4. The connecting arm 5 is located outside the sliding seat 2. Three grooves 7 are opened on the inner side of the sliding seat 2. The grooves 7 communicate with the round hole. A positioning component is arranged in the grooves 7. The positioning component includes a spring 8 and a ball 9. A spring 8 is connected to the lower part of each groove 7, and a ball 9 is arranged at the upper part of each groove 7. The spring 8 and the ball 9 in the same groove 7 are connected. The spring 8 is used to provide an upward thrust to the ball 9 so that the ball 9 abuts against the outer surface of the rotating shaft 4. A plurality of circular grooves 6 adapted to the balls 9 are symmetrically opened in the middle of the rotating shaft 4. The lower end of the connecting arm 5 is rotatably connected to a vertical frame 10 by means of a shaft rod. A guide rail 12 is connected to the lower side of the vertical frame 10 by means of a bolt. A lifting seat 13 is slidably connected to the guide rail 12. The lifting seat 13 can move left and right on the guide rail 12. A U-shaped clamp 15 is connected to the lower end of the lifting seat 13 by means of an internal hexagonal bolt. A rubber block 16 is connected to the inner side of the U-shaped clamp 15.

[0021] As Figure 1 shown, a fastener 3 is connected to the rear side of the sliding seat 2 by means of a threaded connection. The fastener 3 is a screw rod, and the front end of the screw rod contacts the rear end of the base 1.

[0022] As Figure 1 shown, a wing bolt 11 is threadedly connected to the upper part of the front side of the vertical frame 10, and the wing bolt 11 abuts against the front end of the connecting arm 5.

[0023] As Figure 3 shown, an adjusting bolt 14 is threadedly connected to the front side of the lifting seat 13, and the rear end of the adjusting bolt 14 contacts the front side of the guide rail 12.

[0024] At first, the ball catch 9 is snapped into the card slot 6 on one side, with the vertical frame 10 facing downwards. The base 1 is fixed to the front of the helmet 100 through bolts. Loosen the hexagon socket head bolt, place the binocular night vision device 200 between the lifting seat 13 and the U-shaped fixture 15. The rubber block 16 contacts the night vision device 200, which can increase the friction force. Tighten the fastening bolt, and the U-shaped fixture 15 moves towards the lifting seat 13 to fix the night vision device 200. When it is necessary to adjust the distance between the night vision device 200 and people's eyes, loosen the adjusting bolt 14, move the lifting seat 13 to slide on the guide rail 12. After moving to the appropriate position, tighten the adjusting bolt 14, and the lifting seat 13 can be fixed on the guide rail 12. When it is necessary to adjust the angle of the night vision device 200, loosen the wing nut 11, and the vertical frame 10 can rotate around the end of the connecting arm 5. After adjusting the angle, tighten the wing nut 11 to fix the vertical frame 10 and the connecting arm 5. When it is necessary to adjust the height position of the night vision device 200, loosen the fastener 3, move the sliding seat 2 on the base 1. When the height position of the night vision device 200 is adjusted, tighten the fastener 3. If the night vision device 200 is not needed after the operation, push the connecting arm 5 clockwise with force. The rotating shaft 4 rotates accordingly, and the ball catch 9 is extruded from the card slot 6 and retracts into the groove 7, compressing the spring 8. When the connecting arm 5 rotates 180 degrees clockwise, the ball catch 9 aligns with the card slot 6 on the other side, and under the action of the spring 8, the ball catch 9 is pushed into the card slot 6 to fix the rotating shaft 4 and the connecting arm 5.

[0025] The above-described embodiments only represent the preferred embodiments of the present invention, and the description is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations, improvements, and substitutions can be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the appended claims.

Claims

1. An adjustable helmet bracket, comprising a base (1) fixed to a helmet (100), wherein a sliding seat (2) is slidably connected to the base (1), and is characterized in that, A circular hole is formed at the top of the sliding seat (2), a rotating shaft (4) is movably arranged in the circular hole, a connecting arm (5) is connected between the two ends of the rotating shaft (4), a plurality of grooves (7) are formed inside the sliding seat (2), the grooves (7) communicate with the circular hole, a positioning component is arranged in the grooves (7), and the positioning component is used for keeping the connecting arm (5) and the sliding seat (2) at a specific angle. One end of the connecting arm (5) far away from the rotating shaft (4) is rotatably connected with a vertical frame (10), a guide rail (12) is arranged on the side surface of the vertical frame (10), a lifting seat (13) is slidably connected to the guide rail (12), a U-shaped clamp (15) is arranged on one side of the lifting seat (13) far away from the guide rail (12), and the U-shaped clamp (15) is connected with the lifting seat (13) through an internal hexagonal bolt.

2. The adjustable helmet bracket according to claim 1, characterized in that, The positioning component includes a spring (8) and a detent ball (9). The spring (8) is arranged at the lower part inside the groove (7), the detent ball (9) is arranged at the upper part inside the groove (7), the spring (8) is used for providing an upward thrust to the detent ball (9) so that the detent ball (9) abuts against the outer surface of the rotating shaft (4), and a plurality of card slots (6) adapted to the detent ball (9) are symmetrically formed in the middle of the rotating shaft (4).

3. The adjustable helmet bracket according to claim 2, characterized in that, A fastener (3) is arranged between the sliding seat (2) and the base (1), and the fastener (3) is used for fixing the sliding seat (2) and the base (1).

4. The adjustable helmet bracket according to claim 1, wherein, A wing bolt (11) is threadedly connected to one side of the vertical frame (10), and the wing bolt (11) abuts against the connecting arm (5) for fixing the connecting arm (5) and the vertical frame (10).

5. The adjustable helmet bracket according to claim 1, wherein, An adjusting bolt (14) is threadedly connected to the lifting seat (13), and the adjusting bolt (14) contacts the side part of the guide rail (12).

6. The adjustable helmet bracket according to claim 1, wherein A rubber block (16) is arranged inside the U-shaped clamp (15).

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