Telescopic buffering hard traction rod

Abstract

The utility model discloses a telescopic buffering hard traction rod which comprises a traction rod assembly, the traction rod assembly is inserted into a traction cylinder in a penetrating mode and fixed through an end cover, one end of the traction rod assembly is a base, the other end of the traction rod assembly is connected with a traction rod traction head through threads, and a base hole is formed in the base. The traction cylinder comprises a cylinder body and a traction cylinder traction head in threaded connection with the cylinder body, and a plurality of fixing holes are formed in the cylinder body at equal intervals; a base hole in the base corresponds to a fixing hole of the traction cylinder and is fixed through a fixing pin shaft and a cotter pin. The hard traction rod can be telescopically adjusted to the required length and is provided with a buffer structure, the traction heads at the two ends can be rapidly detached and replaced with traction heads of different shapes and specifications according to needs, the angle formed by the head traction head and the tail traction head can be adjusted by 360 degrees in the axial direction, the structure is simple, the space size is small, carrying and storage are convenient, and operation is easy and practical.

Description

Technical Field

[0001] This utility model belongs to the field of traction technology, specifically relating to a telescopic buffer rigid traction rod. Background Technology

[0002] Currently, conventional towing methods are mainly divided into two types: soft towing, which mainly uses chains and ropes, and hard towing, which uses sturdy objects such as steel pipes that are not easily deformed. Hard towing devices are generally large in size and have a fixed length, making them inconvenient to carry and store, and they cannot be adjusted to the required length. When towing different objects and vehicles, the size of the towing hole and the fixing method required are different, and a single towing rod cannot meet various needs.

[0003] In addition, during hard towing, the angles of the hooks at the towing points between the towing vehicle and the towing object are inconsistent, and they are all rigid connections without buffer protection. During towing, the towing object is prone to impacting the towing vehicle, causing equipment damage to the towing vehicle.

[0004] The patent with publication number CN2379337Y discloses a telescopic folding rigid cable tow bar, which uses a square steel tube with a large anti-buffer spring. The working length is 2 to 3 meters, and the length can be shortened by only half when carried. However, this tow bar cannot meet the requirements for shorter towing. Utility Model Content

[0005] To address the aforementioned problems, this utility model aims to provide a telescopic buffer rigid traction rod.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a telescopic buffer rigid traction rod, including a traction rod assembly, which is inserted into a traction cylinder and fixed by an end cap.

[0007] One end of the traction rod assembly is a base, and the other end is connected to the traction rod traction head by a thread. The base is provided with a base hole.

[0008] The traction cylinder includes a cylinder body and a traction cylinder traction head threadedly connected to the cylinder body. The cylinder body has several equally spaced fixing holes.

[0009] The base hole on the base corresponds to the fixing hole of the traction cylinder and is fixed by a fixing pin and a cotter pin.

[0010] Furthermore, the traction rod assembly includes a rod body, a traction rod head connected to the rod body by a thread, the other end of the rod body is a boss, a spring passes through the rod body and abuts against the boss, a spring sleeve is sleeved on the spring, and a base is screwed into the spring sleeve and abuts against the other end of the spring.

[0011] Furthermore, the shape of the traction head of the traction rod assembly includes a hook shape, an ear plate shape, and a cylindrical opening shape.

[0012] Furthermore, the inner diameter of the traction cylinder body is larger than the outer diameter of the traction rod assembly body.

[0013] Furthermore, the base hole on the base can be vertically aligned with any fixing hole of the traction cylinder, and a fixing pin is inserted into the two holes, with a cotter pin horizontally arranged on the fixing pin.

[0014] Compared with the prior art, this utility model has the following advantages: the rigid traction rod can be telescopically adjusted to the required length, has a buffer structure, the traction heads at both ends can be quickly disassembled and replaced with traction heads of different shapes and specifications as needed, the angle between the first and last traction heads can be adjusted 360° along the axial direction, the structure is simple, the space volume is small, it is convenient to carry and store, and the operation is simple and practical. Attached Figure Description

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

[0016] Figure 1 This is a cross-sectional view of the telescopic buffer rigid traction rod in this utility model;

[0017] Figure 2 This is a top view of the telescopic buffer rigid traction rod in this utility model;

[0018] Figure 3 This is a schematic diagram of the assembly of the telescopic buffer rigid traction rod in this utility model;

[0019] Figure 4 This is a cross-sectional view of the traction cylinder in this utility model;

[0020] Figure 5 This is a top view of the traction cylinder in this utility model;

[0021] Figure 6 This is a schematic diagram of the traction cylinder assembly in this utility model;

[0022] Figure 7 This is a cross-sectional view of the traction rod assembly in this utility model;

[0023] Figure 8 This is a top view of the traction rod assembly in this utility model;

[0024] Figure 9 This is a schematic diagram of the traction rod assembly in this utility model;

[0025] Figure 10 This is a schematic diagram of the extension of the telescopic buffer rigid traction rod in this utility model. Figure 1 ;

[0026] Figure 11 This is a schematic diagram of the extension of the telescopic buffer rigid traction rod in this utility model. Figure 2 ;

[0027] Figure 12 A schematic diagram showing the shortening of the telescopic buffer rigid traction rod in this utility model. Figure 1 ;

[0028] Figure 13 A schematic diagram showing the shortening of the telescopic buffer rigid traction rod in this utility model. Figure 2 ;

[0029] Figure 14 This is a schematic diagram of the traction rod assembly used alone in this utility model;

[0030] In the diagram, 1-traction rod assembly; 11-traction rod traction head; 12-rod body; 13-spring; 14-spring cylinder; 15-base; 2-traction cylinder; 21-traction cylinder traction head; 22-cylinder body; 3-fixed pin; 4-cotter pin; 5-end cap. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. However, it should not be construed that the scope of the subject matter of the present invention is limited to the following embodiments. Any modifications, substitutions and alterations made based on ordinary technical knowledge and conventional means in the art without departing from the above-described technical concept of the present invention are included within the scope of the present invention.

[0032] Structural Description: The telescopic buffer rigid traction rod consists of a traction rod assembly 1, a traction cylinder 2, a fixing pin 3, a cotter pin 4, and an end cap 5. (See Figure 1 and...) Figure 2 As shown, during assembly, insert the base end of the traction rod assembly 1 into the traction cylinder 2, and use the fixing pin 3 to fix it together with the traction cylinder 2. Insert the cotter pin 4 into the fixing pin 3, unscrew the traction head of the traction rod assembly 1, put the end cap 5 on the traction rod body, tighten the end cap 5 and the traction cylinder 2, and finally put the traction head back onto the traction rod assembly 1 to complete the assembly. The angle between the first and last traction heads can be adjusted 360° axially. Figure 3 As shown.

[0033] The traction drum consists of a traction drum head 21 and a drum body 22, as shown in Figure 4. Figure 5As shown, assembly is completed by screwing the traction head 21 into the internal threaded hole of the cylinder body 22. Furthermore, the traction head 21 is fixed in place by screwing its own tail thread into the cylinder body; therefore, different traction heads of different shapes can be quickly disassembled and replaced when different connection requirements arise. Figure 6 As shown.

[0034] The tow bar assembly 1 consists of a tow head 11, a bar body 12, a spring 13, a spring sleeve 14, and a base 15, as shown in Figure 7. Figure 8 As shown, during assembly, the spring sleeve 14 is inserted from the threaded hole end of the rod body 12 to the boss on the rod body. The spring 13 is then inserted into the spring sleeve 14, passing through the rod body 12 and pressing against the other side of the boss. Next, the base 15 is screwed into the spring sleeve 14, pressing against the other end of the spring 13. Finally, the traction head 11 is screwed into the internal threaded hole of the rod body 12 to complete the assembly. Similarly, the traction rod assembly 1 can be quickly disassembled and replaced with traction heads of different shapes as needed. Figure 9 As shown.

[0035] Explanation of the principle:

[0036] The telescopic buffer rigid traction rod has multiple equally spaced fixing holes on the traction cylinder 2. When different lengths are required, the traction rod assembly 1 is fixed to different fixing holes on the traction cylinder 2 via fixing pins 3 to achieve length adjustment. Cotter pins 4 are inserted into the fixing pins 3 to prevent slippage. In the traction rod assembly 1, the rod body 12, spring cylinder 14, and spring 13 are mutually pressed and fixed in the axial direction, but there is no limit device in the radial direction. The rod body 12 can rotate 360° axially, allowing adjustment of the required angle. The traction rod assembly 1 contains a spring device for shock absorption and cushioning. Furthermore, the traction heads at both ends of the telescopic buffer rigid traction rod are threaded together, allowing for quick disassembly and replacement of traction heads of different shapes and specifications as needed.

[0037] Action description:

[0038] Tow bar length adjustment:

[0039] For example, when the traction rod needs to be extended to its maximum length, align the base 15 hole of the traction rod assembly 1 with the uppermost fixing hole of the traction cylinder 2, insert the fixing pin 3, and insert the cotter pin 4 into the fixing pin 3 to complete the extension operation. As shown in Figures 10 and 11.

[0040] For example, when the traction rod needs to be retracted to its shortest length, align the base 15 hole of the traction rod assembly 1 with the lowest fixing hole of the traction cylinder, insert the fixing pin 3, and insert the cotter pin 4 into the fixing pin 3 to complete the shortening operation. (See Figure 12 and...) Figure 13 As shown.

[0041] Use of the tow bar assembly alone: ​​When the required distance is too short, if the rigid tow bar in its shortened state still cannot meet the distance requirement, the end cap 5 of the telescopic tow bar can be unscrewed, the cotter pin 4 and the fixing pin 3 can be pulled out, and the tow bar assembly 1 can be pulled out. Only the tow bar assembly 1 can be used for towing operations. At the same time, the tow bar assembly still has a buffer function. The bar body 12 can also rotate 360° axially within the spring sleeve, and the angle can be adjusted as needed. Different shaped tow heads can also be quickly disassembled and replaced as needed, as shown in Figure 14.

[0042] The foregoing has provided a detailed description of a telescopic buffer rigid traction rod provided by this utility model. Specific examples have been used to illustrate the structure and working principle of this utility model. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims of this utility model.

Claims

1. A telescopic buffer rigid traction rod, characterized in that: Includes a tow bar assembly (1), which is inserted into the tow cylinder (2) and fixed by an end cap (5). One end of the traction rod assembly (1) is a base (15), and the other end is connected to a traction rod traction head (11) by a thread. The base (15) is provided with a base hole. The traction cylinder (2) includes a cylinder body (22) and a traction cylinder traction head (21) threaded onto the cylinder body. The cylinder body (22) has several equally spaced fixing holes. The base hole on the base (15) corresponds to the fixing hole of the traction cylinder (2) and is fixed by a fixing pin (3) and a cotter pin (4).

2. The telescopic buffer rigid traction rod according to claim 1, characterized in that: The traction rod assembly (1) includes a rod body (12), a traction rod head (11) connected to the rod body (12) by a thread, the other end of the rod body (12) is a boss, a spring (13) passes through the rod body (12) and abuts against the boss, a spring sleeve (14) is sleeved on the spring (13), and a base (15) is screwed into the spring sleeve (14) and abuts against the other end of the spring (13).

3. The telescopic buffer rigid traction rod according to claim 1, characterized in that: The shape of the traction rod head (11) of the traction rod assembly (1) includes hook shape, ear plate shape and cylindrical opening shape.

4. The telescopic buffer rigid traction rod according to claim 1, characterized in that: The inner diameter of the traction cylinder (2) body (22) is greater than the outer diameter of the traction rod assembly (1) rod body (12).

5. The telescopic buffer rigid traction rod according to claim 1, characterized in that: The base hole on the base (15) can be vertically aligned with any fixing hole of the traction cylinder (2), and a fixing pin (3) is inserted into the two holes. A cotter pin (4) is horizontally set on the fixing pin (3).

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