Length-adjustable audio and video connecting line

Abstract

The utility model discloses a length-adjustable audio and video connecting line in the technical field of audio and video connecting lines, which comprises a storage box, a hand wheel is arranged at the top of the storage box, a driving rotating rod is connected to the bottom of the hand wheel, a winding drum is sleeved on the outer wall of the driving rotating rod, and an audio and video connecting line main body is wound on the winding drum. A U-shaped box is installed at the bottom of the storage box, the bottom of the driving rotating rod penetrates through the bottom wall of the storage box, the bottom of the driving rotating rod is rotationally connected with the inner wall of the U-shaped box through a bearing, the outer wall of the bottom end of the driving rotating rod is sleeved with a damping pad, and operation pull rods are slidably connected to the two side walls of the U-shaped box; according to the utility model, a user can conveniently adjust the length of the audio and video connecting line according to requirements, the position of the driving rotating rod can be locked, the audio and video connecting line is prevented from moving, the audio and video connecting line is locked by replacing a pressing folding mode, and the operation is convenient. And the audio and video connecting line is prevented from being pressed and damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of audio and video connecting lines, in particular to an audio and video connecting line with adjustable length. Background Art

[0002] Audio and video cables are mainly used to connect various audio and video devices, such as speakers, TVs, cameras, etc., to transmit audio and video signals. Common cables include HDMI, RCA, optical fiber, and VGA. HDMI cables are suitable for high-definition image and audio transmission, RCA cables are generally used to transmit analog audio and video signals, optical fiber cables can transmit digital audio signals, and VGA cables are suitable for connecting monitors, computers, and other devices.

[0003] Publication number CN216251526U proposes a length-adjustable audio and video connection cable, which is rotatably connected to a storage box through a knob cap using a first mounting hole and a second mounting hole respectively, so that the adjustment of the regulating tube and the pressing seat is simple and convenient. The main body of the audio and video connection cable inside the storage box can be pressed and folded through the first length adjustment component and the second length adjustment component, so that the main body of the audio and video connection cable can achieve length contraction control. The regulating tube is slidably connected to the storage box through a positioning column and a positioning slide groove, so that the operation stability of the regulating tube can be high.

[0004] The above-mentioned patent controls the length contraction of the audio and video connection cable by pressing and folding the audio and video connection cable through the first length adjustment component and the second length adjustment component. The pressing and folding method is likely to cause damage to the wire core in the audio and video connection cable. The audio and video connection cable is easily damaged by pressure and the use effect is poor. Therefore, we propose a length-adjustable audio and video connection cable. Utility Model Content

[0005] The utility model aims to provide an audio and video connection line with adjustable length to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A length-adjustable audio and video connection cable comprises a storage box, a hand wheel is provided on the top of the storage box, a driving rotating rod is connected to the bottom of the hand wheel, a winding drum is sleeved on the outer wall of the driving rotating rod, and the audio and video connection cable body is wound on the winding drum, a U-shaped box is installed at the bottom of the storage box, the bottom of the driving rotating rod passes through the bottom wall of the storage box, and the bottom of the driving rotating rod is rotatably connected to the inner wall of the U-shaped box through a bearing, a damping pad is sleeved on the outer wall of the bottom end of the driving rotating rod, both side walls of the U-shaped box are slidably connected with operating pull rods, and an arc-shaped friction ring matched with the damping pad is installed at the bottom of the operating pull rod.

[0008] Furthermore: an auxiliary slide is provided on the outer wall of the bottom end of the operating pull rod, and the auxiliary slide is slidably connected to the inner wall of the U-shaped box and the outer wall of the bottom end of the storage box. Two sets of return springs are provided on the outer side surface of the auxiliary slide, and the other ends of the two sets of return springs are connected to the inner wall of the U-shaped box.

[0009] Furthermore: both left and right side walls of the storage box are provided with through holes, and the inner walls of the through holes are provided with rubber rings.

[0010] Furthermore: the top of the operating rod passes through the side wall of the U-shaped box, and a pull ring is installed on the top of the operating rod.

[0011] Furthermore: the hand-held ends of the pull ring and the hand wheel are both covered with anti-slip rubber sleeves.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model can rotate the hand wheel to rotate the winding drum on the driving rotating rod, and the audio and video connecting line wound on the winding drum can be released or wound, which is convenient for the user to adjust the length according to the needs, and through the action of two sets of operating pull rods, the auxiliary slide plate and the reset spring, the arc-shaped friction ring at the bottom can be made to contact or move away from the damping pad on the outer wall of the bottom end of the driving rotating rod, which can lock the position of the driving rotating rod to prevent the audio and video connecting line from moving, instead of using the pressing and folding method to lock the audio and video connecting line, so as to prevent the audio and video connecting line from being damaged by pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a schematic cross-sectional view of the top structure of the utility model;

[0016] Figure 3 For the utility model Figure 2 Enlarged structural diagram at A in the middle.

[0017] In the figure: 1. Storage box; 2. Audio and video connecting cable body; 3. Hand wheel; 4. U-shaped box; 5. Winding drum; 6. Driving rod; 7. Operating pull rod; 8. Auxiliary slide plate; 9. Pull ring; 10. Reset spring; 11. Arc friction ring; 12. Damping pad. DETAILED DESCRIPTION

[0018] 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.

[0019] Embodiment 1:

[0020] See also Figure 1-3 The utility model provides a technical solution: a length-adjustable audio and video connection cable, comprising a storage box 1, a hand wheel 3 is provided on the top of the storage box 1, a driving rod 6 is connected to the bottom of the hand wheel 3, a winding drum 5 is sleeved on the outer wall of the driving rod 6, and an audio and video connection cable body 2 is wound on the winding drum 5, a U-shaped box 4 is installed at the bottom of the storage box 1, the bottom of the driving rod 6 passes through the bottom wall of the storage box 1, and the bottom of the driving rod 6 is rotatably connected to the inner wall of the U-shaped box 4 through a bearing, a damping pad 12 is sleeved on the outer wall of the bottom end of the driving rod 6, both side walls of the U-shaped box 4 are slidably connected with an operating pull rod 7, and an arc-shaped friction ring 11 adapted to the damping pad 12 is installed at the bottom of the operating pull rod 7.

[0021] The opening end of the U-shaped box 4 is facing the storage box 1, and the U-shaped box 4 is fixedly connected to the storage box 1. The main body 2 of the audio and video connection line is an existing line, and the winding drum 5 is fixedly connected to the outer wall of the driving rotating rod 6. By rotating the hand wheel 3, the winding drum 5 on the driving rotating rod 6 can be rotated, and the main body 2 of the audio and video connection line wound on the winding drum 5 can be released or wound, which is convenient for the user to adjust the length according to needs. Through the action of two sets of operating pull rods 7, the arc-shaped friction ring 11 at the bottom can be made to contact or move away from the damping pad 12 on the outer wall of the bottom end of the driving rotating rod 6. When the two are in contact, the position of the driving rotating rod 6 and the winding drum 5 can be locked to prevent the main body 2 of the audio and video connection line from moving, and the contraction length of the main body 2 of the audio and video connection line can be controlled, instead of using the pressing and folding method to lock the audio and video connection line, so as to prevent the audio and video connection line from being damaged by pressure.

[0022] Preferably, an auxiliary slide plate 8 is provided on the outer wall of the bottom end of the operating pull rod 7, and the auxiliary slide plate 8 is slidably connected with the inner wall of the U-shaped box 4 and the outer wall of the bottom end of the storage box 1. Two sets of return springs 10 are provided on the outer side surface of the auxiliary slide plate 8, and the other ends of the two sets of return springs 10 are connected to the inner wall of the U-shaped box 4;

[0023] When the length of the audio and video connection cable body 2 needs to be adjusted, the two sets of operating pull rods 7 are pulled outward. At this time, the auxiliary slide plate 8 moves outward, the reset spring 10 is compressed, and the arc-shaped friction ring 11 is away from the outer wall of the driving rotating rod 6. At this time, the rotation of the hand wheel 3 can smoothly drive the winding drum 5 on the driving rotating rod 6 to rotate, so as to adjust the length of the audio and video connection cable body 2. After determining the use length of the audio and video connection cable body 2, the two sets of operating pull rods 7 are released, and the compressed reset spring 10 can automatically return to its position, that is, the auxiliary slide plate 8 is driven to move, and the arc-shaped friction ring 11 moves toward one side of the driving rotating rod 6, and the arc-shaped friction ring 11 contacts the damping pad 12. After the arc-shaped friction ring 11 contacts the damping pad 12, the friction force is large, so that the driving rotating rod 6 does not rotate easily, thereby realizing the control of the length of the audio and video connection cable body 2.

[0024] Preferably, both left and right side walls of the storage box 1 are provided with through holes, and the inner walls of the through holes are provided with rubber rings; the through holes are used for the passage of the audio and video connection cable body 2, and the rubber rings play a protective role to prevent the audio and video connection cable body 2 from being damaged.

[0025] Preferably, the top of the operating rod 7 passes through the side wall of the U-shaped box 4 , and a pull ring 9 is installed on the top of the operating rod 7 ; the pull ring 9 facilitates the pulling of the operating rod 7 .

[0026] Embodiment 2:

[0027] Reference Figure 1 and Figure 3 This embodiment is different from the first embodiment in that the hand-held ends of the pull ring 9 and the hand wheel 3 are both covered with anti-skid rubber sleeves; the anti-skid rubber sleeves play an anti-skid role, preventing the hand from slipping when holding the pull ring 9, thereby improving the stability of the pull ring 9 and the hand wheel 3 when in use.

[0028] Although 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 length-adjustable audio and video cable, comprising a storage box (1), characterized in that: The top of the storage box (1) is provided with a hand wheel (3), the bottom of the hand wheel (3) is connected to a driving rotating rod (6), the outer wall of the driving rotating rod (6) is sleeved with a winding drum (5), and the main body of the audio and video connection line (2) is wound on the winding drum (5), the bottom of the storage box (1) is installed with a U-shaped box (4), the bottom of the driving rotating rod (6) passes through the bottom wall of the storage box (1), and the bottom of the driving rotating rod (6) is rotatably connected to the inner wall of the U-shaped box (4) through a bearing, the outer wall of the bottom end of the driving rotating rod (6) is sleeved with a damping pad (12), the two side walls of the U-shaped box (4) are slidably connected with an operating pull rod (7), and the bottom of the operating pull rod (7) is installed with an arc-shaped friction ring (11) adapted to the damping pad (12).

2. The length-adjustable audio and video cable according to claim 1, characterized in that: An auxiliary slide plate (8) is provided on the outer wall of the bottom end of the operating pull rod (7), and the auxiliary slide plate (8) is slidably connected to the inner wall of the U-shaped box (4) and the outer wall of the bottom end of the storage box (1).

3. The length-adjustable audio and video connection cable according to claim 2, characterized in that: Two groups of return springs (10) are arranged on the outer side surface of the auxiliary slide plate (8), and the other ends of the two groups of return springs (10) are connected to the inner wall of the U-shaped box (4).

4. The length-adjustable audio and video cable according to claim 1, characterized in that: The left and right side walls of the storage box (1) are both provided with through holes, and the inner walls of the through holes are provided with rubber rings.

5. The length-adjustable audio and video connection cable according to claim 1, characterized in that: The top of the operating rod (7) passes through the side wall of the U-shaped box (4), and a pull ring (9) is installed on the top of the operating rod (7).

6. The length-adjustable audio and video connection cable according to claim 5, characterized in that: The pull ring (9) and the hand-held end of the hand wheel (3) are both covered with anti-slip rubber sleeves.

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