Improved torsion spring assembly

Through the torsion spring assembly with no welding design and the structural design of the support seat and mounting seat, the weld brittleness and quality problems caused by welding are solved, and longer fatigue life and stable torque transmission are achieved.

CN223331013UActive Publication Date: 2025-09-12ZHUJI PRINTING MACHINE SPRING MANUFACTURING FACTORY
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Patent Information

Application Number
CN202422747263.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-12
Publication Date
2025-09-12
Estimated Expiration
2034-11-12

AI Technical Summary

Technical Problem

Existing torsion springs are prone to excessive carbide crystals during the welding process, which increases the brittleness of the weld and leads to poor welding quality. In addition, the hardness and softness at the welding transition are inconsistent, which easily leads to breakage.

Method used

It adopts a non-welding design. The inner diameter hole of the torsion spring is inserted through the bosses of the first and second support seats. The torsion arm of the torsion spring is inserted into the square groove of the support seat. The convex rib of the mounting seat is used to fit into the groove of the support seat to achieve torque transmission and centering.

Benefits of technology

It avoids the quality problems caused by welding, has a simple and environmentally friendly structure, a longer fatigue life, and a good torque transmission effect.

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Abstract

The utility model provides an improved torsion spring assembly which comprises a torsion spring, a first supporting seat and a second supporting seat, a first torsion arm and a second torsion arm are arranged at the two ends of the torsion spring respectively, a torsion spring inner diameter hole is formed in the middle of the torsion spring, a first boss is arranged at one end of the first supporting seat, and a first square groove is formed in the side face of the first supporting seat. A first boss is arranged at one end of the first supporting seat, a second boss is arranged at one end of the second supporting seat, a second square groove is formed in the side face of the second supporting seat, the first boss is inserted into one end of an inner diameter hole of the torsion spring, the second boss is inserted into the other end of the inner diameter hole of the torsion spring, the first torsion arm is inserted into the first square groove, and the second torsion arm is inserted into the second square groove. The torsion spring assembly is simple in structure, convenient to use, environmentally friendly and longer in service life.
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Description

Technical Field

[0001] The utility model belongs to the field of springs, and in particular relates to an improved torsion spring assembly. Background Art

[0002] Torsion springs are a very common component in mechanical mechanisms. They are generally made of wound spring steel wire, with the load applied to the torsion arm to withstand torsional loads. To facilitate connection, some torsion springs have a support seat added at each end, secured by welding, thereby transferring torque from one end of the torsion spring to the other. Because spring steel has a high carbon content, it can lead to excessive carbide crystals in the weld, increasing weld brittleness. Spring steel also often contains elements such as manganese, carbon, and chromium, which can easily cause adverse reactions during welding, resulting in poor weld quality. Furthermore, the high temperature of welding can cause annealing of the spring steel, and the weld transition can also result in uneven hardness and softness. All of these factors can easily lead to torsion spring fracture at the weld. Utility Model Content

[0003] In order to solve the above technical problems, the present invention provides an improved torsion spring assembly, which is more reliable and has a longer fatigue life within the same structural space. The specific technical solutions are as follows:

[0004] An improved torsion spring assembly includes a torsion spring, a first support seat and a second support seat, the two ends of the torsion spring are respectively a first torsion arm and a second torsion arm, and the middle is a torsion spring inner diameter hole, one end of the first support seat is provided with a first boss and a first square groove is provided on the side, one end of the second support seat is provided with a second boss and a second square groove is provided on the side, the first boss is inserted into one end of the torsion spring inner diameter hole, the second boss is inserted into the other end of the torsion spring inner diameter hole, the first torsion arm is inserted into the first square groove, and the second torsion arm is inserted into the second square groove.

[0005] Furthermore, to ensure ease of use, the improved torsion spring assembly further includes a first mounting seat and a second mounting seat, wherein the first support seat has a first end face groove at its other end facing away from the first boss, and the second support seat has a second end face groove at its other end facing away from the second boss, wherein the first mounting seat has a first rib and the second mounting seat has a second rib, wherein the first rib snaps into the first end face groove and the second rib snaps into the second end face groove. The first and second mounting seats can be rotated during use.

[0006] Compared with the prior art, the beneficial effects of the present invention are:

[0007] The bosses of the first and second support blocks insert into the inner diameter holes of the torsion spring, providing centering. The two torsion spring arms insert into the square grooves of the first and second support blocks, transmitting torque. The end faces of the torsion spring contact the end faces of the support blocks, preventing spring movement. This structural design avoids the welding required by traditional torsion spring assemblies, resulting in a simpler, more environmentally friendly, and longer fatigue life. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0009] Figure 1 This is a three-dimensional structural diagram of an improved torsion spring assembly of the utility model;

[0010] Figure 2 This is a three-dimensional diagram of the installation and use of an improved torsion spring assembly of the utility model;

[0011] Figure 3 This is an exploded structural diagram of an improved torsion spring assembly of the utility model;

[0012] Figure 4 This is a structural diagram of a torsion spring of an improved torsion spring assembly of the present invention;

[0013] Figure 5 The present invention is a structural diagram of a support seat of an improved torsion spring assembly.

[0014] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0015] 1. Torsion spring, 2. First support seat, 3. Second support seat, 4. First mounting seat, 5. Second mounting seat, 101. First torsion arm, 102. Second torsion arm, 103. Inner diameter hole of torsion spring, 201. First square groove, 202. First end face groove, 203. First boss, 301. Second square groove, 302. Second end face groove, 303. Second boss, 401. First rib, 501. Second rib. DETAILED DESCRIPTION

[0016] The following will be combined with the accompanying 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.

[0017] like Figure 1-Figure 5 As shown, an improved torsion spring assembly includes a torsion spring 1, a first support seat 2 and a second support seat 3, the two ends of the torsion spring 1 are respectively a first torsion arm 101 and a second torsion arm 102, and the middle is a torsion spring inner diameter hole 103, the first support seat 2 and the second support seat 3 have the same structure, both of which are composed of a small boss and a large cone, the side of the large cone is provided with a square groove, and the end face is provided with a groove; one end of the first support seat 2 is provided with a first boss 203 and a first square groove 201 is provided on the side, one end of the second support seat 3 is provided with a second boss 303 and a second square groove 301 is provided on the side, the first boss 203 is inserted into one end of the torsion spring inner diameter hole 103, the second boss 303 is inserted into the other end of the torsion spring inner diameter hole 103, the first torsion arm 101 is inserted into the first square groove 201, and the second torsion arm 102 is inserted into the second square groove 301.

[0018] This spring assembly is primarily used for computer installation and connection. During use, the first support base 2 corresponds to the first mounting base 4, and the second support base 3 corresponds to the second mounting base 5. The first support base 2 has a first end face groove 202 on its end opposite the first boss 203, and the second support base 3 has a second end face groove 302 on its end opposite the second boss 303. The first mounting base 4 has a first rib 401, and the second mounting base 5 has a second rib 501. The first rib 401 snaps into the first end face groove 202, and the second rib 501 snaps into the second end face groove 302. During use, the first mounting base 4 and the second mounting base 5 can be rotated separately.

[0019] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0020] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An improved torsion spring assembly, comprising a torsion spring, a first support seat and a second support seat, characterized in that: The two ends of the torsion spring are respectively the first torsion arm and the second torsion arm, with an inner diameter hole of the torsion spring in the middle. A first boss is provided at one end of the first support seat and a first square groove is provided on the side. A second boss is provided at one end of the second support seat and a second square groove is provided on the side. The first boss is inserted into one end of the inner diameter hole of the torsion spring, and the second boss is inserted into the other end of the inner diameter hole of the torsion spring. The first torsion arm is inserted into the first square groove, and the second torsion arm is inserted into the second square groove.

2. An improved torsion spring assembly according to claim 1, characterized in that: It also includes a first mounting seat and a second mounting seat, the first support seat is provided with a first end face groove at the other end opposite to the first boss, the second support seat is provided with a second end face groove at the other end opposite to the second boss, the first mounting seat is provided with a first rib, the second mounting seat is provided with a second rib, the first rib is snapped into the first end face groove, and the second rib is snapped into the second end face groove.