Light source extension cord

Abstract

The utility model discloses a light source extension cord which comprises a light source extension cord body and a protection mechanism, the protection mechanism comprises a movable cylinder, a cylinder head and a protection cylinder, the movable cylinder and the cylinder head are fixedly connected, a connecting assembly is arranged between the cylinder head and the protection cylinder, and the connecting assembly comprises a positioning column, a sliding block, a contraction spring and a connecting rod. The positioning column penetrates through the sliding block and the end of the contraction spring to be connected with the side face of the cylinder head, one end of the connecting rod is connected with the side face of the protection cylinder, the other end of the connecting rod is connected with the sliding block, and a connecting shaft penetrates through the end of the connecting rod. The cylinder head and the protective cylinder are arranged on the outer side of the terminal of the light source extension line body in a sleeving mode, the protective effect is achieved, the situation that the terminal is damaged due to treading, colliding with foreign objects or pulling and the like is avoided, the cylinder head and the protective cylinder are of a split structure, the protective cylinder can be pulled outwards, the position of the protective cylinder can be moved, and plugging use of the terminal of the light source extension line body is not affected.

Description

Technical Field

[0001] The utility model belongs to the technical field of light source extension cords, and in particular relates to a light source extension cord. Background Art

[0002] Light source extension cord is a protective accessory used in video acquisition related machines and equipment (such as cameras, light source controllers, etc.). Since some video acquisition related machines and equipment have high power, they may be damaged in abnormal situations such as overload or short circuit. Using a light source extension cord with a fuse function can effectively avoid such problems and improve the life and stability of the equipment. The Chinese utility model authorized patent application number is CN201721662072.8, which discloses a machine light source cord. The light source extension cord is a conventional transmission wire.

[0003] The terminals at both ends of the light source extension cord are exposed when not inserted into related equipment. There is no protection design on the outside of the light source extension cord. When used outdoors and placed on the ground with the terminals exposed, the terminals of the light source extension cord are easily deformed by being stepped on, pulled by foreign objects, etc., affecting the performance of the terminals. When the light source extension cord is placed on the ground, there is a problem that there is no protection design on the outside of the terminals at both ends of the light source extension cord. For this reason, the present application proposes a light source extension cord. Utility Model Content

[0004] The utility model aims to provide a light source extension cable to solve the problem that the outer sides of the two end terminals of the light source extension cable proposed in the above background technology have no protection design.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a light source extension line, comprising a light source extension line body and a protective mechanism, the protective mechanism comprising a movable cylinder and a cylinder head fixedly connected, and a protective cylinder, a connecting assembly is provided between the cylinder head and the protective cylinder, the connecting assembly comprises a positioning column, a slider, a contraction spring and a connecting rod, the positioning column passes through the end of the slider and the contraction spring and is connected to the side of the cylinder head, one end of the connecting rod is connected to the side of the protective cylinder, the other end of the connecting rod is connected to the slider, and a connecting shaft passes through the end of the connecting rod.

[0006] Preferably, a first stabilizing ring is provided on the side of the barrel head, the centers of the movable barrel, the barrel head and the first stabilizing ring are on the same axis, and the movable barrel is slidably connected to the main body of the light source extension line.

[0007] Preferably, the protective tube is a hollow structure, and one end of the protective tube is sealed, the outer diameter of the first stabilizing ring is the same as the inner diameter of the protective tube, and the outer diameter of the tube head is the same as the outer diameter of the protective tube.

[0008] Preferably, the end of the positioning column away from the barrel head and the connecting shaft are of a "T"-shaped structure, the connecting rod rotates 270 degrees around the connecting shaft, and the connecting shaft is connected to the slider.

[0009] Preferably, a restraining cylinder is provided on one end of the movable cylinder, a second stabilizing ring is provided on the side of the restraining cylinder, and the second stabilizing ring is screwed and connected to the movable cylinder through a thread.

[0010] Preferably, the outer surface of the restraining tube is provided with symmetrically distributed blocking rods, and the angle between the blocking rods and the restraining tube is 30 degrees.

[0011] Preferably, a damping washer is provided on the inner surface of the restraining tube, and a restraining strap is provided inside the damping washer.

[0012] Preferably, a draw rope is provided on the outer surface of the restraining tube, and the draw rope passes through the restraining tube and the end of the damping washer and is connected to the restraining strap, and a diagonal pattern is provided on the inner surface of the damping washer.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] In the utility model, the barrel head and the protective barrel are sleeved on the outside of the terminal of the light source extension cord body to play a protective role and prevent the terminal from being damaged by being stepped on, knocked or pulled by foreign objects, etc. The barrel head and the protective barrel are separate structures, and the protective barrel can be pulled outward to move the position of the protective barrel without affecting the terminal connection and use of the light source extension cord body. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the cartridge head of the utility model;

[0017] Figure 3 For the utility model Figure 1 Schematic diagram of the structure of the middle protective tube in the AA direction;

[0018] Figure 4 It is a three-dimensional structural schematic diagram of the binding cylinder of the utility model;

[0019] Figure 5 It is a schematic cross-sectional structure diagram of the restraining tube of the utility model;

[0020] In the figure: 1. light source extension line body; 2. movable cylinder; 3. cylinder head; 4. protective cylinder; 6. restraining cylinder; 31. first stabilizing ring; 51. positioning column; 52. slider; 53. contraction spring; 54. connecting rod; 61. pull rope; 62. blocking rod; 63. damping washer; 64. second stabilizing ring; 541. connecting shaft; 631. restraining strap. 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] Example 1

[0023] See also Figures 1 to 3 The utility model provides a technical solution: a light source extension line, including a light source extension line body 1 and a protective mechanism, the protective mechanism includes a movable cylinder 2 and a cylinder head 3, and a protective cylinder 4, the movable cylinder 2 and the cylinder head 3 are sleeved on the outer side of the end of one side of the terminal of the light source extension line body 1, and the positions of the movable cylinder 2 and the cylinder head 3 can be adjusted to be located close to the terminal; a connecting component is provided between the cylinder head 3 and the protective cylinder 4, the connecting component includes a positioning column 51, a slider 52, a contraction spring 53 and a connecting rod 54, the positioning column 51 passes through the slider 52 and the end of the contraction spring 53 and is connected to the side of the cylinder head 3, the positioning column 51 is screwed together with the cylinder head 3 by a thread, one end of the connecting rod 54 is connected to the side of the protective cylinder 4, and the connecting rod 54 is connected to the protective cylinder 4 is welded and connected, the other end of the connecting rod 54 is connected to the slider 52, and a connecting shaft 541 passes through the end of the connecting rod 54, and the connecting shaft 541 is screwed with the slider 52 by a thread, and the barrel head 3 and the protective barrel 4 are sleeved on the outside of the terminal of the light source extension line body 1 to protect the terminal from being stepped on, knocked or pulled by foreign objects, etc. When the terminal of the light source extension line body 1 is plugged in and used, the protective barrel 4 is pulled outward, and the connecting rod 54 drives the slider 52 to move, and the contraction spring 53 is in a contracted deformation state. The protective barrel 4 and the connecting rod 54 are rotated around the connecting shaft 541, so that the protective barrel 4 is not on the same axis as the barrel head 3, and the movable barrel 2 and the barrel head 3 are moved to expose the terminal of the light source extension line body 1, which is convenient for plugging and use.

[0024] In this embodiment, a first stabilizing ring 31 is provided on the side of the barrel head 3, and the first stabilizing ring 31 is embedded in the interior of the protective barrel 4 to position the protective barrel 4. The centers of the movable barrel 2, the barrel head 3 and the first stabilizing ring 31 are on the same axis. The movable barrel 2 is slidably connected to the light source extension cord body 1, and the position of the movable barrel 2 on the outside of the light source extension cord body 1 can be changed without affecting the terminal connection and use of the light source extension cord body 1. The inner diameters of the barrel head 3 and the protective barrel 4 are larger than the terminal width of the light source extension cord body 1, which does not affect the barrel head 3 and the protective barrel 4 protecting the terminals of the light source extension cord body 1.

[0025] In this embodiment, the protective tube 4 is a hollow structure, and one end of the protective tube 4 is sealed, the outer diameter of the first stabilizing ring 31 is the same as the inner diameter of the protective tube 4, the outer diameter of the tube head 3 is the same as the outer diameter of the protective tube 4, the end of the positioning column 51 away from the tube head 3 and the connecting shaft 541 are a "T"-shaped structure, the connecting rod 54 rotates 270 degrees around the connecting shaft 541, and the connecting shaft 541 is connected to the slider 52, which can change the position of the connecting rod 54 and the protective tube 4 without affecting the terminal connection and use of the light source extension line body 1.

[0026] To sum up: the barrel head 3 and the protective barrel 4 are sleeved on the outside of the terminal of the light source extension cable body 1 to play a protective role and prevent the terminal from being damaged by being stepped on, knocked or pulled by foreign objects, etc. The barrel head 3 and the protective barrel 4 are split structures, and the protective barrel 4 can be pulled outward to move the position of the protective barrel 4 without affecting the terminal connection and use of the light source extension cable body 1.

[0027] Example 2

[0028] See also Figures 1 to 5 , which is the second embodiment of the utility model. This embodiment is based on the previous embodiment. A restraining tube 6 is provided on one end of the movable tube 2. A second stabilizing ring 64 is provided on the side of the restraining tube 6. The second stabilizing ring 64 is screwed and connected to the movable tube 2 by a thread. The second stabilizing ring 64 moves in the same direction as the movable tube 2. A symmetrically distributed blocking rod 62 is provided on the outer surface of the restraining tube 6. The blocking rod 62 is welded to the restraining tube 6. The angle between the blocking rod 62 and the restraining tube 6 is 30 degrees. After the pull rope 61 is pulled, it is sleeved on the outer side of the blocking rod 62. The blocking rod 62 Hook the taut pull rope 61, the inner surface of the restraining tube 6 is provided with a damping washer 63, the damping washer 63 is in contact with the light source extension line body 1, thereby increasing the friction and preventing the movable tube 2 and the protective tube 4 from sliding, the damping washer 63 is provided with a restraining strap 631 inside, and the outer surface of the restraining tube 6 is provided with a pull rope 61, the pull rope 61 is stretched outward and tightened, and the restraining strap 631 is tightened by the tension, so that the damping washer 63 is in a tightened state, so that the damping washer 63 tightly restrains the light source extension line body 1 and prevents the movable tube 2 from loosening.

[0029] In this embodiment, the pull rope 61 passes through the restraining tube 6, and the end of the damping washer 63 is connected to the restraining strap 631. When the pull rope 61 is pulled outward, the restraining strap 631 is tightened by the tension, so that the damping washer 63 is in a tightened state. The inner surface of the damping washer 63 is provided with a diagonal pattern to increase friction.

[0030] In summary, the pull rope 61 is stretched outward and tightened, and the binding belt 631 is tightened by the tension, so that the damping washer 63 is in a tightened state, so that the damping washer 63 tightly binds the light source extension line body 1 to prevent the movable tube 2 from loosening.

[0031] 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 light source extension cable, comprising a light source extension cable body (1) and a protective mechanism, characterized in that: The protective mechanism comprises a movable cylinder (2) and a cylinder head (3) fixedly connected, and a protective cylinder (4); a connecting assembly is provided between the cylinder head (3) and the protective cylinder (4); the connecting assembly comprises a positioning column (51), a slider (52), a contraction spring (53) and a connecting rod (54); the positioning column (51) passes through the ends of the slider (52) and the contraction spring (53) and is connected to the side of the cylinder head (3); one end of the connecting rod (54) is connected to the side of the protective cylinder (4); the other end of the connecting rod (54) is connected to the slider (52); and a connecting shaft (541) passes through the end of the connecting rod (54).

2. The light source extension cable according to claim 1, characterized in that: A first stabilizing ring (31) is provided on the side of the barrel head (3); the centers of the movable barrel (2), the barrel head (3) and the first stabilizing ring (31) are located on the same axis; and the movable barrel (2) is slidably connected to the light source extension line body (1).

3. The light source extension cable according to claim 2, characterized in that: The protective tube (4) is a hollow structure, and one end of the protective tube (4) is sealed. The outer diameter of the first stabilizing ring (31) is the same as the inner diameter of the protective tube (4), and the outer diameter of the tube head (3) is the same as the outer diameter of the protective tube (4).

4. The light source extension cable according to claim 1, characterized in that: The end of the positioning column (51) away from the barrel head (3) and the connecting shaft (541) are in a "T"-shaped structure. The connecting rod (54) rotates 270 degrees around the connecting shaft (541). The connecting shaft (541) is connected to the slider (52).

5. The light source extension cable according to claim 1, characterized in that: A restraining cylinder (6) is provided on one end of the movable cylinder (2), a second stabilizing ring (64) is provided on the side of the restraining cylinder (6), and the second stabilizing ring (64) is connected to the movable cylinder (2) by screw thread.

6. The light source extension cable according to claim 5, characterized in that: The outer surface of the restraining tube (6) is provided with symmetrically distributed blocking rods (62), and the angle between the blocking rods (62) and the restraining tube (6) is 30 degrees.

7. The light source extension cable according to claim 6, characterized in that: The inner surface of the restraining tube (6) is provided with a damping washer (63), and the interior of the damping washer (63) is provided with a restraining strap (631).

8. The light source extension cable according to claim 7, characterized in that: The outer surface of the restraining tube (6) is provided with a drawstring (61), the drawstring (61) passes through the restraining tube (6), the end of the damping washer (63) is connected to the restraining strap (631), and the inner surface of the damping washer (63) is provided with diagonal lines.

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