Slow-speed take-up automobile safety tensioning device

Abstract

The utility model provides a slow take-up automobile safety tensioning device which comprises a device body, a bandage is arranged on the device body, the end, away from one end of the device body, of the bandage and the bandage are sewn together to form a hollow annular end, an insertion rod is arranged in the annular end in a penetrating mode, and a first U-shaped connecting piece is arranged at the annular end in a clamped mode. The lower portion of the side, close to the annular end, of the interior of the first U-shaped connecting piece is fixedly connected with a bottom supporting rod, and a clamping mechanism is arranged at the position, above the bottom supporting rod, of the first U-shaped connecting piece. The outer tangent circle of the annular end is tangent to the limiting rod, the outer cylindrical face of the bottom supporting rod and the bottom of the clamping mechanism through the supporting effect of the inserting rod, so that the tail end of the bandage does not directly penetrate through the connecting portion of the hook like a traditional connecting mode, and abrasion of the annular end of the bandage is relieved.

Description

Technical Field

[0001] This utility model relates to a slow-speed retraction vehicle safety tensioning device, belonging to the technical field of tensioning devices. Background Technology

[0002] Car installation tensioning devices typically consist of a tensioning device body, a long strap, a short strap, and a hook. The device body is usually made of metal. The long and short straps are usually separate from the device body. The hook is designed in a figure-eight shape, with the loop end of the strap directly hooked onto the hook. As the strap wears down, the loop end of the strap will wear out, and in severe cases, it may break. Therefore, this invention proposes a slow-speed retraction car safety tensioning device to reduce the wear on the loop end of the strap. Utility Model Content

[0003] Based on the above background, the purpose of this utility model is to provide a slow-speed retraction vehicle safety tensioning device to solve the problems in the background art.

[0004] This utility model provides the following technical solution:

[0005] A slow-speed retractable car safety tensioning device includes a device body with a strap on the device body. The end of the strap away from the device body is sewn together to form a hollow annular end. An insert rod is inserted into the annular end. A first U-shaped connector is engaged on the annular end. A bottom support rod is fixedly connected to the lower side of the first U-shaped connector near the annular end. A locking mechanism is provided above the bottom support rod on the first U-shaped connector. A limiting rod is provided inside the first U-shaped connector. The outer tangent circle of the annular end is tangent to the outer cylindrical surface of the limiting rod, the bottom support rod, and the bottom of the locking mechanism. A second U-shaped connector is hinged to the first U-shaped connector, and a hook is rotatably connected to the second U-shaped connector.

[0006] Preferably, the locking mechanism includes a connecting plate, which is fixedly installed above the bottom support rod inside the first U-shaped connector. A groove is provided at the bottom of the connecting plate on the inner side of the first U-shaped connector, and a locking plate is slidably connected in the groove. The bottom of the locking plate has an arc-shaped surface, and a set of locking bolts is threadedly connected to the connecting plate. The bottom of the locking bolts abuts against the top surface of the locking plate.

[0007] Preferably, the first U-shaped connector has a first through hole at a position coaxial with the limiting rod.

[0008] Preferably, the second U-shaped connector has a second through hole coaxial with the first through hole, and the first through hole and the second through hole have the same diameter.

[0009] Preferably, threaded holes are provided on both ends of the limiting rod, and fixing bolts are threaded into the threaded holes.

[0010] Preferably, the fixing bolt passes through both the first through hole and the second through hole.

[0011] Preferably, a rotating sleeve is fitted on the screw portion of the fixing bolt, the rotating sleeve passing through the first through hole and the second through hole, and the first U-shaped connector and the second U-shaped connector are hinged together by the rotating sleeve.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] This utility model discloses a slow-speed retraction car safety tensioning device. By inserting a rod into the annular end of the strap, the tangent circle of the annular end is made tangent to the outer cylindrical surface of the limiting rod, the bottom support rod, and the bottom of the locking mechanism through the supporting action of the rod. This prevents the strap end from being directly inserted into the connection part of the hook as in traditional connection methods, thus reducing wear on the annular end of the strap.

[0014] This utility model discloses a slow-speed retraction car safety tensioning device. By fitting a rotating sleeve onto a fixing bolt, the rotating sleeve hinges the first and second U-shaped connectors. This allows for changes in the angle between the hook and the loop end of the strap through the hinge between the first and second U-shaped connectors, further reducing wear on the loop end of the strap. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0017] Figure 2 This is a schematic diagram showing the position of the inscribed circle between the limiting rod, the bottom support rod, and the bottom arc surface of the card plate of this utility model;

[0018] Figure 3 This is a schematic diagram of the first U-shaped connector structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the second U-shaped connector structure of this utility model;

[0020] Figure 5This is a schematic diagram of the limiting rod structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the fixing bolt structure of this utility model.

[0022] In the diagram: 1. Device body; 2. Strap; 3. Ring end; 4. Insert rod; 5. First U-shaped connector; 6. Bottom support rod; 7. Limiting rod; 8. Second U-shaped connector; 9. Hook; 10. Connecting plate; 11. Slide groove; 12. Clamping plate; 13. Arc-shaped surface; 14. Clamping bolt; 15. First through hole; 16. Second through hole; 17. Threaded hole; 18. Fixing bolt; 19. Rotating sleeve. Detailed Implementation

[0023] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings. It should be understood that the implementation of this utility model is not limited to the following embodiments, and any modifications and / or alterations made to this utility model will fall within the protection scope of this utility model.

[0024] In this invention, unless otherwise specified, all parts and percentages are by weight, and the equipment and raw materials used are commercially available or commonly used in the field. Unless otherwise specified, the methods in the following embodiments are conventional methods in the field. Unless otherwise specified, the components or equipment in the following embodiments are general standard parts or components known to those skilled in the art, and their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0025] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the following detailed description, many specific details are set forth to facilitate explanation and provide a comprehensive understanding of the embodiments of the present invention. However, one or more embodiments may be practiced by those skilled in the art without these specific details.

[0026] Example 1:

[0027] like Figures 1-6As shown, a slow-speed retractable car safety tensioning device includes a device body 1. The device body 1 is provided with a strap 2. The end of the strap 2 away from the device body 1 is sewn together with the strap 2 to form a hollow annular end 3. An insert rod 4 is inserted into the annular end 3. A first U-shaped connector 5 is clamped on the annular end 3. A bottom support rod 6 is fixedly connected to the lower side of the first U-shaped connector 5 near the annular end 3. A locking mechanism is provided above the bottom support rod 6 on the first U-shaped connector 5. A limiting rod 7 is provided inside the first U-shaped connector 5. The outer tangent circle of the annular end 3 is tangent to the outer cylindrical surface of the limiting rod 7, the bottom support rod 6, and the bottom of the locking mechanism. A second U-shaped connector 8 is hinged to the first U-shaped connector 5. A hook 9 is rotatably connected to the second U-shaped connector 8.

[0028] In the above technical solution, by inserting a rod 4 through the annular end 3 at the end of the strap 2, the outer tangent circle of the annular end 3 is made tangent to the outer cylindrical surface of the limiting rod 7, the bottom support rod 6 and the bottom of the locking mechanism by the supporting effect of the rod 4. This prevents the end of the strap 2 from being directly inserted into the connection part of the hook 9 as in the traditional connection method, thus reducing the wear of the annular end 3 of the strap 2.

[0029] In this utility model, the locking mechanism includes a connecting plate 10, which is fixedly installed above the bottom support rod 6 inside the first U-shaped connector 5. A sliding groove 11 is provided at the bottom of the connecting plate 10 on the inner side of the first U-shaped connector 5. A locking plate 12 is slidably connected in the sliding groove 11. The bottom of the locking plate 12 is provided with an arc-shaped surface 13. A set of locking bolts 14 are threadedly connected to the connecting plate 10, and the bottom of the locking bolts 14 abuts against the top surface of the locking plate 12.

[0030] In the above technical solution, by setting the clamping plate 12 and using the threaded connection of the clamping bolt 14 on the connecting plate 10, the clamping plate 12 can be driven to move downward in the slide groove 11, which makes it easy to fix the annular end 3 of the strap 2 in the inscribed circle position between the limiting rod 7, the bottom support rod 6 and the bottom arc surface 13 of the clamping plate 12, and at the same time facilitates the disassembly of the annular end 3 of the strap 2 and the first U-shaped connector 5.

[0031] Example 2:

[0032] like Figures 1-6As shown, in a preferred embodiment of this invention, the first U-shaped connector 5 has a first through hole 15 coaxial with the limiting rod 7. The second U-shaped connector 8 has a second through hole 16 coaxial with the first through hole 15, and the first through hole 15 and the second through hole 16 have the same diameter. Threaded holes 17 are provided on both ends of the limiting rod 7, and fixing bolts 18 are threaded into the threaded holes 17. The fixing bolts 18 pass through both the first through hole 15 and the second through hole 16. A rotating sleeve 19 is fitted onto the screw portion of the fixing bolt 18, and the rotating sleeve 19 passes through both the first through hole 15 and the second through hole 16. The first U-shaped connector 5 and the second U-shaped connector 8 are hinged together by the rotating sleeve 19.

[0033] In the above technical solution, by fitting a rotating sleeve 19 on the fixing bolt 18, the first U-shaped connector 5 and the second U-shaped connector 8 are hinged together by the rotating sleeve 19, so that the angle change between the hook 9 and the annular end 3 of the strap 2 can be achieved through the hinge between the first U-shaped connector 5 and the second U-shaped connector 8, which further reduces the wear of the annular end 3 of the strap 2.

[0034] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A slow reeving automotive safety tensioner characterized by: The utility model provides a kind of device, including device body (1), the device body (1) is equipped with bandage (2), the end of the bandage (2) away from device body (1) is sewn together with bandage (2) and constitutes hollow annular end (3), the hollow annular end (3) is equipped with insertion rod (4), the first U-shaped connecting piece (5) is clamped on the hollow annular end (3), the first U-shaped connecting piece (5) is fixedly connected with bottom support rod (6) in the inside near the annular end (3) side lower side, the first U-shaped connecting piece (5) is equipped with limit rod (7) in the inside, the excircle of the annular end (3) is tangent with limit rod (7), bottom support rod (6) and the bottom of clamping mechanism outer cylindrical surface respectively, the second U-shaped connecting piece (8) is hinged on the first U-shaped connecting piece (5), and the hook (9) is rotatably connected on the second U-shaped connecting piece (8).

2. A slow reeving automotive safety tensioner as in claim 1, wherein: The clamping mechanism includes connecting plate (10), the connecting plate (10) is fixedly installed on the position above bottom support rod (6) in the first U-shaped connecting piece (5), the bottom of connecting plate (10) is provided with sliding slot (11) on the inner side of the first U-shaped connecting piece (5), the sliding slot (11) is slidably connected with clamping plate (12), the bottom of clamping plate (12) is provided with arc surface (13), a group of clamping bolts (14) are threadedly connected on the connecting plate (10), and the bottom of clamping bolt (14) is abutted with the top surface of clamping plate (12).

3. A slow reeving automotive safety tensioner as in claim 2, wherein: The first U-shaped connecting piece (5) is provided with first through hole (15) on the coaxial position of limit rod (7).

4. A slow reeving automotive safety tensioning device according to claim 3, wherein: The second U-shaped connecting piece (8) is provided with second through hole (16) on the coaxial position of first through hole (15), and the diameters of first through hole (15) and second through hole (16) are same.

5. A slow reeving automotive safety tensioning device according to claim 4, wherein: Threaded holes (17) are formed on the two end faces of limit rod (7), and fixed bolts (18) are threadedly connected in the threaded holes (17).

6. A slow reeving automotive safety tensioning device according to claim 5, wherein: The fixed bolt (18) passes through first through hole (15) and second through hole (16) simultaneously.

7. A slow reeving automotive safety tensioning device according to claim 6, wherein: The screw rod part of the fixed bolt (18) is sleeved with rotating sleeve (19), the rotating sleeve (19) is arranged in first through hole (15) and second through hole (16), and the first U-shaped connecting piece (5) and the second U-shaped connecting piece (8) are hinged through the rotating sleeve (19).

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