Novel torsion spring structure brake elastic piece
By using a new type of torsion spring structure for brake pads, the problem of abnormal braking caused by brake pad deformation has been solved, resulting in higher production efficiency and stability, and significantly improved braking performance.
Patent Information
- Application Number
- CN202420157100.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-23
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-01-23
AI Technical Summary
The spring tongue of existing brake springs is prone to deformation during transportation or heat treatment, which can cause abnormal caster brakes, frequent correction and adjustment, and reduced production efficiency.
The brake pads adopt a new type of torsion spring structure. The torsion spring is connected to the bracket rivet, eliminating the pad tongue. The torsion spring provides the rebound and reset function. Combined with the pivot connection of the bracket and the brake plate, a dual braking effect is achieved.
It reduces the impact of deformation, improves dimensional stability and production efficiency, more than doubles elastic stability, and significantly improves brake fatigue test rebound performance.
Smart Images
Figure CN222310278U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of caster spring pieces, in particular to a novel braking spring piece with a torsion spring structure. Background Art
[0002] Casters are a common mechanical accessory, mainly used to be installed at the bottom of an object to facilitate its movement. They are widely used in furniture, logistics carts, shelves, instruments and equipment, and other objects that need to be easy to move. When an object needs to be stationary after being moved to a predetermined position, a braking system needs to be set on the caster to control the brakes of the caster. Caster brakes prohibit the steering and rolling of the caster to fix the equipment. The core components of this braking system are usually composed of a brake spring and a brake pedal. The brake spring is responsible for braking and is responsible for braking and releasing the brake within the braking function area, while the brake pedal is responsible for controlling the braking state.
[0003] At present, the brake springs used in the caster industry are generally formed by integral stamping of metal sheets, and then undergo heat treatment to improve mechanical properties such as strength and hardness. The characteristic of this brake spring is that it relies on a long strip spring tongue to achieve the rebound reset of the brake spring, but the spring tongue of this structure is easily deformed by pressure during transportation or heat treatment in the furnace. In addition to the deformation after heat treatment, the deformation of the spring tongue accumulates and increases, resulting in abnormal caster brake problems from time to time. Frequent correction and adjustment of the brake spring also reduces the production efficiency of the product. Utility Model Content
[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a novel brake spring piece with a torsion spring structure, which effectively solves the problem that the spring piece tongue in the prior art is easily deformed by pressure during transportation or when entering the furnace for heat treatment, and the deformation after the heat treatment causes the deformation degree of the spring piece tongue to accumulate and increase, resulting in abnormal problems of caster brakes occurring from time to time. Frequent correction and adjustment of the brake spring piece also reduces the production efficiency of the product. The utility model is a novel brake spring piece with a torsion spring structure.
[0005] In order to achieve the above functions, the technical solution adopted by the utility model is as follows: a new torsion spring structure brake spring, including a brake spring installed between the bracket and the caster, the brake spring is connected to the torsion spring through the bracket rivet, the brake spring is provided with a reserved installation groove for installing the torsion spring, one end of the torsion spring is a fixed end clamped at the end of the reserved installation groove of the brake spring, and the other end is a force-bearing end pressed down by the bracket, the brake spring and the reserved installation groove are provided with an axial hole in the vertical direction, and the torsion spring is sleeved on the bracket rivet that passes through the bracket and the axial hole in sequence.
[0006] Furthermore, the bracket is provided with a rotating shaft for adjusting the direction of the caster, and a rotating shaft limiting groove is provided in a circular array at the bottom of the rotating shaft. The brake spring plate extends in a sheet shape from the shaft hole to both sides and is arranged above the caster. A symmetrically distributed clamping plate is provided in the direction close to the rotating shaft, and a braking protrusion is provided on the surface of the caster that is close to the end away from the clamping plate.
[0007] Furthermore, the clamping plate is clamped in the limiting groove of the rotating shaft, and the braking protrusion is arranged close to the caster.
[0008] Furthermore, the bracket is also provided with a first brake plate and a second brake plate, the first brake plate and the second brake plate are pivotally connected by rivets, the first brake plate is pivotally connected to the brake spring by rivets, and the second brake plate is also pivotally connected to the bracket by bracket rivets.
[0009] Furthermore, the caster and the bracket are pivotally connected, and the caster and the bracket rotate relative to each other.
[0010] The beneficial effects achieved by the utility model using the above structure are as follows: the new brake spring is not provided with a spring tongue, and a torsion spring is designed to replace the rebound and reset function of the spring tongue. Since the new brake spring is not provided with a spring tongue, the structure is more symmetrical and uniform. Not only is it not easily affected by the extrusion during transportation and heat treatment into the furnace, but it is also easy to produce and manufacture, the degree of deformation after heat treatment is also small, and the dimensional stability is improved. Deformation is a problem that is difficult to solve in heat treatment. It is impossible to completely prevent deformation. By simplifying the brake spring structure and separately setting the torsion spring, the deformation of the brake spring can be controlled within a certain range. In addition, the torsion spring has a simple structure and stable elasticity, and the rebound performance of the brake fatigue test is more than doubled. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 A cross-sectional view of a novel torsion spring structure brake spring proposed in the utility model;
[0012] Figure 2 This is a schematic diagram of the structural decomposition of the novel torsion spring structure brake spring proposed in the utility model;
[0013] Figure 3 A schematic diagram of the combined structure of a brake spring piece, a torsion spring and a bracket rivet of the novel torsion spring structure brake spring piece proposed by the utility model;
[0014] Figure 4 A schematic diagram of the relative positions of the brake spring and the torsion spring of the novel torsion spring structure brake spring proposed by the utility model;
[0015] Figure 5 This is a structural schematic diagram of the torsion spring of the novel torsion spring structure brake spring proposed in the utility model.
[0016] Among them, 1. bracket, 2. caster, 3. brake spring, 4. torsion spring, 5. first brake plate, 6. second brake plate, 7. bracket rivet, 8. rivet, 11. shaft, 111. shaft limit groove, 31. reserved installation groove, 32. shaft hole, 33. brake protrusion, 34. clamping plate.
[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. DETAILED DESCRIPTION
[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0019] like Figure 1-5 As shown, the new torsion spring structure brake spring piece proposed in the utility model includes a brake spring piece 3 installed between the bracket 1 and the caster 2, the caster 2 and the bracket 1 are pivotally connected, the caster 2 and the bracket 1 rotate relatively, the brake spring piece 3 is connected to the torsion spring 4 through the bracket rivet 7, and a reserved installation groove 31 for installing the torsion spring 4 is provided on the brake spring piece 3, one end of the torsion spring 4 is a fixed end clamped at the end of the reserved installation groove 31 of the brake spring piece 3, and the other end is a force-bearing end pressed down by the bracket 1, and an axial hole 32 is provided in the vertical direction of the brake spring piece 3 and the reserved installation groove 31, and the torsion spring 4 is sleeved on the bracket rivet 7 that passes through the bracket 1 and the axial hole 32 in sequence. In order to reduce the damage to the shoes caused by the user's stepping and pulling, and to make the braking operation more convenient, a first brake plate 5 and a second brake plate 6 are also provided on the bracket 1, and the first brake plate 5 and the second brake plate 6 are pivotally connected through a rivet 8, the first brake plate 5 is pivotally connected to the brake spring piece 3 through the rivet 8, and the second brake plate 6 is also pivotally connected to the bracket 1 through the bracket rivet 7.
[0020] In order to achieve the double braking effect, the bracket 1 is provided with a rotating shaft 11 for adjusting the direction of the caster 2, and a rotating shaft limiting groove 111 is provided in a circular array at the bottom of the rotating shaft 11. The brake spring 3 extends from the shaft hole 32 to both sides in a sheet shape and is arranged above the caster 2. A symmetrically distributed clamping plate 34 is provided in the direction close to the rotating shaft 11, and a braking protrusion 33 is provided on the side of the caster 2 that is close to the end away from the clamping plate 34. When in the braking state, the clamping plate 34 is clamped in the rotating shaft limiting groove 111, and the braking protrusion 33 is arranged close to the caster 2.
[0021] During specific use, by stepping on the first brake pedal 5, the first brake pedal 5 drives the second brake pedal 6 through the active connection relationship between the first brake pedal 5 and the second brake pedal 6, so that the second brake pedal 6 drives the brake spring 3 to press the caster 2; in the braking state, by stepping on the second brake pedal 6, the second brake pedal 6 drives the first brake pedal 5 to reset, so that a gap is formed between the two ends of the brake spring 3 and the caster 2, and the motion state is restored. In order to provide the brake spring 3 with a reset elastic force away from the caster 2, the clamping end 3 of the brake spring 3 and the torsion spring 4 are used to press against the bracket 1 when the caster 2 is in the braking state, so as to provide the brake spring 3 with elastic stress in the direction away from the caster 2, so that the brake spring 3 can restore its motion. State, in the braking state, the braking protrusion 33 presses against the caster 2 so that the other end of the brake spring 3 is tilted toward the bracket 1, and the torsion spring 4 also presses against the bottom of the bracket 1, continuously applying elastic stress in the opposite direction to the brake spring 3, but because the first brake pedal 5 and the second brake pedal 6 are in a self-locking state, the brake spring 3 cannot be reset due to the elastic stress. When the second brake pedal 6 is stepped on, the second brake pedal 6 and the first brake pedal 5 are unlocked, and the brake spring 3 will be reset due to the elastic stress of the torsion spring 4, satisfying the switching of the two states. The clamping plate 34 on the brake spring 3 is clamped in the limiting groove 111 for limiting, so as to achieve a double braking effect. The above is the use process of the entire new torsion spring structure brake spring.
[0022] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0023] Although the 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.
[0024] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.
Claims
1. A novel torsion spring structure brake spring, comprising a brake spring (3) installed between a bracket (1) and a caster (2), characterized in that: The brake spring (3) is connected to the torsion spring (4) via a bracket rivet (7); a reserved installation groove (31) for installing the torsion spring (4) is provided on the brake spring (3); one end of the torsion spring (4) is a fixed end clamped at the end of the reserved installation groove (31) of the brake spring (3); the other end is a force-bearing end pressed down by the bracket (1); an axial hole (32) is provided in the vertical direction between the brake spring (3) and the reserved installation groove (31); the torsion spring (4) is sleeved on the bracket rivet (7) which passes through the bracket (1) and the axial hole (32) in sequence.
2. The novel torsion spring structure brake spring according to claim 1 is characterized in that: The bracket (1) is provided with a rotating shaft (11) for adjusting the direction of the caster (2); a rotating shaft limiting groove (111) is arranged in a circumferential array at the bottom of the rotating shaft (11); the braking spring sheet (3) extends from the shaft hole (32) to both sides in a sheet shape and is arranged above the caster (2); a symmetrically distributed clamping plate (34) is arranged in a direction close to the rotating shaft (11); and a braking protrusion (33) is arranged on a surface of the caster (2) that is close to the end of the clamping plate (34) and is away from the clamping plate (34).
3. The novel torsion spring structure brake spring according to claim 2 is characterized in that: The clamping plate (34) is clamped in the rotating shaft limiting groove (111), and the braking protrusion (33) is arranged in close contact with the caster (2).
4. The novel torsion spring structure brake spring according to claim 3 is characterized in that: The bracket (1) is also provided with a first brake plate (5) and a second brake plate (6), the first brake plate (5) and the second brake plate (6) are pivotally connected via a rivet (8), the first brake plate (5) is pivotally connected to the brake spring plate (3) via the rivet (8), and the second brake plate (6) is also pivotally connected to the bracket (1) via a bracket rivet (7).
5. The novel torsion spring structure brake spring according to claim 4 is characterized in that: The caster (2) and the bracket (1) are pivotally connected, and the caster (2) and the bracket (1) rotate relative to each other.