Torsion rod spring structure

Abstract

The utility model relates to the technical field of springs, in particular to a torsion bar spring structure, which avoids friction between spring bodies after the spring bodies are processed and delivered, improves the protection effect on the spring bodies, guarantees the subsequent use effect of the spring bodies, and improves the practicability of the device. A protection mechanism is arranged on the outer side wall of the spring body; the protection mechanism comprises a first protection sleeve, the top end of the first protection sleeve is tightly attached to the bottom end of the spring body, a fixing column is fixedly installed at the inner bottom end of the first protection sleeve, a screw is screwed to the top area of the fixing column, a cover plate is rotationally installed at the top end of the screw, and a second protection sleeve is attached to the bottom end of the cover plate. The outer side wall of the second protective sleeve is slidably connected with the inner side wall of the first protective sleeve, a through hole is formed in the middle area of the second protective sleeve, and the screw rod is located in the through hole.

Description

Technical Field

[0001] The utility model relates to the technical field of springs, in particular to a torsion bar spring structure. Background Art

[0002] A torsion spring is a mechanical force storage structure, mainly used in ancient crossbows and other crossbows. The torsion spring stores and utilizes force by twisting or rotating a soft and tough elastic material, giving the projectile a certain amount of mechanical energy.

[0003] The existing torsion bar springs have the problem of poor protection when they are processed and shipped from the factory. As a result, each torsion bar spring is easily scratched during transportation, which will cause certain damage to the torsion bar spring and affect the subsequent use effect of the torsion bar spring. Therefore, we propose a torsion bar spring structure to solve the above problems. Utility Model Content

[0004] (1) Technical problems solved

[0005] In response to the deficiencies in the prior art, the utility model provides a torsion bar spring structure that avoids friction between each spring body after processing and leaving the factory, thereby improving the protection effect of the spring body, ensuring the subsequent use effect of the spring body, and improving the practicality of the spring body.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: a torsion bar spring structure, comprising a spring body, wherein a protection mechanism is provided on the outer side wall of the spring body;

[0008] The protection mechanism includes a first protective cover, the top of the first protective cover is tightly fitted with the bottom end of the spring body, a fixing column is fixedly installed at the inner bottom end of the first protective cover, a screw is screwed on the top area of ​​the fixing column, a cover plate is rotatably installed on the top end of the screw, and a second protective cover is fitted at the bottom end of the cover plate, the outer wall of the second protective cover is slidably connected to the inner wall of the first protective cover, a through hole is opened in the middle area of ​​the second protective cover, and the screw is located inside the through hole.

[0009] Preferably, a protective cover is fitted onto the outer side wall of the first protective sleeve.

[0010] Furthermore, a plurality of pull ropes are tensioned on the outer wall of the protective cover.

[0011] Furthermore, a plurality of handles are fixedly installed around the top of the cover.

[0012] On the basis of the above solution, each of the handles is provided with a handle cover.

[0013] (3) Beneficial effects

[0014] Compared with the prior art, the present invention provides a torsion bar spring structure with the following beneficial effects:

[0015] The torsion bar spring structure completes the fixing operation of the cover plate, the second protective cover and the first protective cover by rotating the screw rod and then screwing the screw rod together through the fixing column, and then protects the outer wall of the spring body through the first protective cover and the second protective cover, thereby avoiding friction between each spring body after the spring body is processed and shipped from the factory, improving the protection effect of the spring body, ensuring the subsequent use effect of the spring body, and improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure of the middle part A;

[0019] Figure 4 For this utility model Figure 2 Schematic diagram of the enlarged structure of part B in the middle.

[0020] Markings in the accompanying drawings: 1. Spring body; 2. First protective cover; 3. Fixed column; 4. Screw; 5. Cover plate; 6. Second protective cover; 7. Through hole; 8. Protective cover; 9. Pull rope; 10. Handle. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example

[0023] See also Figure 1-4, a torsion bar spring structure, including a spring body 1, a protective mechanism is provided on the outer wall of the spring body 1; the protective mechanism includes a first protective sleeve 2, a protective cover 8 is fitted on the outer wall of the first protective sleeve 2, and the exposed position of the spring body 1 is protected by the protective cover 8, a plurality of pull ropes 9 are tensioned on the outer wall of the protective cover 8, and the protective cover 8 is conveniently fixed to the outer walls of the first protective sleeve 2 and the second protective sleeve 6 by installing the pull ropes 9. The top of the first protective sleeve 2 is tightly fitted with the bottom end of the spring body 1, and a fixing column 3 is fixedly installed on the inner bottom end of the first protective sleeve 2, a screw 4 is screwed on the top area of ​​the fixing column 3, and a cover plate 5 is rotatably installed on the top end of the screw 4. The bottom end is fitted with a second protective cover 6, and the outer wall of the second protective cover 6 is slidably connected to the inner wall of the first protective cover 2. A through hole 7 is opened in the middle area of ​​the second protective cover 6, and the screw 4 is located inside the through hole 7. The torsion bar spring structure completes the fixing operation of the cover plate 5, the second protective cover 6 and the first protective cover 2 by rotating the screw 4 and then screwing it through the fixing column 3 and the screw 4, thereby completing the fixing operation of the cover plate 5, the second protective cover 6 and the first protective cover 2, and then protecting the outer wall of the spring body 1 through the first protective cover 2 and the second protective cover 6, avoiding friction between each spring body 1 after the spring body 1 is processed and shipped, thereby improving the protection effect of the spring body 1, ensuring the subsequent use effect of the spring body 1, and improving practicality.

[0024] See also Figure 3 It should also be noted that a plurality of handles 10 are fixedly installed around the top of the cover plate 5. By installing the handles 10, it is convenient for the user to rotate the cover plate 5.

[0025] Each handle 10 is provided with a handle cover, and the handle cover is provided to facilitate the user to rotate the handle 10 .

[0026] In summary, when the torsion bar spring structure is in use, the bottom end of the spring body 1 is tightly fitted with the inner bottom end of the first protective cover 2, and the outer wall of the second protective cover 6 is slidably connected with the inner wall of the first protective cover 2. After the screw 4 passes through the through hole 7 opened on the second protective cover 6, the handle 10 is rotated while synchronously driving the cover 5 and the screw 4 to rotate. The screw 4 is screwed with the fixing column 3 to complete the fixed connection operation of the cover 5, the second protective cover 6 and the first protective cover 2. The protective cover 8 is installed on the outer wall of the first protective cover 2 and the second protective cover 6, and the pull rope 9 is installed on the outer wall of the protective cover 8 to complete the protection operation of the spring body 1.

[0027] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A torsion bar spring structure, comprising a spring body (1), characterized in that: A protection mechanism is provided on the outer side wall of the spring body (1); The protection mechanism comprises a first protection sleeve (2), the top end of the first protection sleeve (2) is tightly fitted with the bottom end of the spring body (1), a fixing column (3) is fixedly installed at the inner bottom end of the first protection sleeve (2), a screw (4) is screwed on the top area of ​​the fixing column (3), a cover plate (5) is rotatably installed on the top end of the screw (4), a second protection sleeve (6) is fitted at the bottom end of the cover plate (5), an outer side wall of the second protection sleeve (6) is slidably connected with the inner side wall of the first protection sleeve (2), a through hole (7) is opened in the middle area of ​​the second protection sleeve (6), and the screw (4) is located inside the through hole (7).

2. The torsion bar spring structure according to claim 1, wherein: A protective cover (8) is fitted onto the outer side wall of the first protective sleeve (2).

3. The torsion bar spring structure according to claim 2, wherein: A plurality of drawstrings (9) are tensionedly sleeved on the outer side wall of the protective cover (8).

4. The torsion bar spring structure according to claim 3, characterized in that: A plurality of handles (10) are fixedly mounted around the top of the cover plate (5).

5. The torsion bar spring structure according to claim 4, characterized in that: Each handle (10) is provided with a handle cover.

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