Torsion rod spring

Abstract

The utility model belongs to the technical field of torsion bar springs, and particularly relates to a torsion bar spring, which comprises two torsion bars, one end of each torsion bar is fixedly connected with a folding bar, the folding bar is provided with a positioning mounting hole, a spiral spring is fixedly connected between the two torsion bars, and the spiral spring is provided with a positioning mounting hole. A sleeve and a sliding rod are fixedly installed at the positions, at the two ends of the torsion rod, in the spiral spring correspondingly. Compared with a traditional automobile seat manual moving structural member, the torsion bar spring has remarkable advantages, and through unique structural design, such as the torsion bar with the twisted spiral appearance and the quadrangular cross section, the folding rod capable of being installed at any angle of 360 degrees, the sleeve matched with the sliding way and the sliding strip, the sliding rod and the like, the overall strength is enhanced, and the service life of the automobile seat is prolonged. And the installation flexibility is greatly improved, the good buffering performance is achieved, vibration can be effectively reduced, in addition, the structure is stable and reliable, the bearing capacity is high, manufacturing and installation are easy and convenient, cost is low, and the requirements of middle-end and low-end vehicle types and concise and practical scenes can be better met.

Description

Technical Field

[0001] This utility model relates to the field of torsion bar spring technology, specifically a torsion bar spring. Background Technology

[0002] Manually movable components for car seats have been used in car seat adjustment systems for a long time.

[0003] The most common manually movable structural component is the slide rail, which generally consists of an upper rail, a lower rail, a locking mechanism, and ball bearings and rollers. By pulling the unlocking handle (which can be internal or external), the locking mechanism is released, and then the seat is pushed by hand, allowing it to slide smoothly between the upper and lower rails using the ball bearings and rollers. In addition to the slide rail, manually adjusting the seat back angle uses a handle with a groove to drive a toothed stabilizing plate, thus unlocking or locking the backrest; some models rely on a gear structure, where turning the gears adjusts the backrest angle.

[0004] Manually movable structural components are simple in structure, low in cost, and highly reliable, and can be operated without additional energy.

[0005] Despite the rise of electric and intelligent adjustment technologies, manually movable structural components will still be widely used in low- to mid-range models and in scenarios where simplicity and practicality are valued. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this utility model provides a torsion bar spring that solves the problems mentioned in the background section.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0010] A torsion bar spring includes two torsion bars, one end of which is fixedly connected to a folding rod. The folding rod has a positioning and mounting hole. A helical spring is fixedly connected between the two torsion bars. Inside the helical spring, a sleeve and a sliding rod are fixedly installed at both ends of the torsion bars respectively. The sliding rod slides inside the sleeve without disengaging.

[0011] Furthermore, the torsion bar exhibits a torsional shape, and is quadrilateral in cross-section. The entire bar is twisted regularly along the axial direction, forming a spiral shape resembling a twisted rope.

[0012] Furthermore, the two folding rods can be installed at any angle of 360° on the plane.

[0013] Furthermore, the inner wall of the sleeve is provided with a slide rail.

[0014] Furthermore, the number of the slides is four.

[0015] Furthermore, four sliding bars are integrally formed on the side wall of the sliding rod.

[0016] Furthermore, the slider slides within the track.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, the present invention provides a torsion bar spring, which has the following beneficial effects:

[0019] Compared with traditional manual moving components for car seats, this torsion bar spring has significant advantages. Through its unique structural design, such as a torsion bar with a twisted spiral shape and a quadrilateral cross-section, a folding bar that can be installed arbitrarily at 360°, and sleeves and slide bars that cooperate with slide rails and slide bars, it not only enhances the overall strength but also greatly improves the installation flexibility. Its excellent cushioning performance can effectively reduce vibration. In addition, the structure is stable and reliable, has a strong load-bearing capacity, and is easy to manufacture and install at a low cost, making it better able to meet the needs of low- and mid-range car models and simple and practical scenarios. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This utility model Figure 1 Schematic diagram of the structure at point A in the middle;

[0022] Figure 3 This is a schematic diagram of the connection structure between the sleeve and the slide rod of this utility model.

[0023] In the diagram: 1. Torsion bar; 2. Folding bar; 3. Positioning mounting hole; 4. Helical spring; 5. Sleeve; 6. Slide bar; 7. Slide track; 8. Slide strip. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example

[0026] like Figure 1-3 As shown, an embodiment of the present invention provides a torsion bar spring, comprising two torsion bars 1;

[0027] Torsion bar 1 has a torsion shape, with a quadrilateral cross-section, and is regularly twisted into a spiral shape along the axial direction.

[0028] Its unique shape gives it high strength, and it can torsion deform under stress, storing and releasing energy through its own elasticity, providing the main elastic support and cushioning function for the entire torsion bar spring.

[0029] One end of the torsion bar 1 is fixedly connected to the folding bar 2. The folding bar 2 has a positioning mounting hole 3. The fixed installation angle of the two folding bars 2 on the plane can be adjusted arbitrarily by 360°.

[0030] The positioning mounting hole 3 is used to install the torsion bar spring onto other equipment or structures to achieve connection with the external structure; the characteristic of the folding bar 2 being able to be installed at any angle greatly increases the flexibility of torsion bar spring installation and can adapt to various different installation spaces and working conditions.

[0031] The helical spring 4 is located between the two torsion bars 1 and is helical in shape.

[0032] Working in conjunction with torsion bar 1, it further enhances the overall buffering performance of the device. When torsion bar 1 twists, coil spring 4 will also stretch and deform accordingly, absorbing and releasing more energy, improving the buffering effect, and enabling the entire torsion bar spring to better perform its shock absorption function when subjected to external impact.

[0033] Inside the helical spring 4, sleeves 5 and slide bars 6 are fixedly installed at both ends of the torsion bar 1, respectively. The slide bars 6 slide and engage inside the sleeves 5 without disengaging. The inner wall of the sleeves 5 is provided with four slide tracks 7, and four slide strips 8 are integrally formed on the side wall of the slide bars 6. The slide strips 8 slide in the slide tracks 7.

[0034] The sliding connection structure of sleeve 5 and slide bar 6 allows the two torsion bars 1 to move relative to each other within a certain range to accommodate displacement changes caused by the torsion of the torsion bars 1 and deformation of the overall structure. The slide rail 7 and slide bar 8 cooperate to guide and limit the movement, ensuring that the slide bar 6 slides stably and smoothly within sleeve 5, preventing deviation, wobbling, or detachment from sleeve 5 during sliding, thus ensuring the stability and reliability of the entire torsion bar spring structure during operation.

[0035] When in operation, the torsion bar spring's overall structure, with its tilted installation and arbitrarily designed angle, allows it to flexibly adapt to different working conditions. The unique twisted spiral shape of the torsion bar 1, with a quadrilateral cross-section and regular twisting along the axial direction, enhances its strength. When subjected to external force, the torsion bar 1 twists, storing energy through its elasticity to provide a buffering effect. The helical spring 4 between the two torsion bars 1 further strengthens the buffering effect. The positioning mounting holes 3 on the folding bar 2 are used for fixed installation, and the two folding bars 2 can be installed at any angle (360°), facilitating overall tilted installation and angle adjustment. During the torsion of the torsion bar 1, the sliding bar 6 slides within the sleeve 5. The slide rail 7 on the inner wall of the sleeve 5 cooperates with the slide strip 8 on the side wall of the sliding bar 6, ensuring stable sliding of the sliding bar 6, allowing the entire torsion bar spring to work stably and reliably during buffering and rotation.

[0036] like Figure 1 As shown, in some embodiments, the torsion bar 1 exhibits a torsional shape, which is quadrilateral in cross-section. The entire bar is twisted regularly along the axial direction to form a spiral shape. Compared with ordinary straight bars, this torsion structure can evenly distribute the force across the entire bar when subjected to external forces.

[0037] like Figure 1 As shown, in some embodiments, the two bending rods 2 can be installed at any angle of 360° on the plane; this gives the torsion bar spring great installation flexibility and expands its application scenarios.

[0038] like Figure 3 As shown, in some embodiments, the inner wall of the sleeve 5 is provided with a slide 7.

[0039] like Figure 3 As shown, in some embodiments, the number of slides 7 is four.

[0040] like Figure 3 As shown, in some embodiments, four slide bars 8 are integrally formed on the side wall of the slide bar 6.

[0041] like Figure 3 As shown, in some embodiments, the slider 8 slides in the slide rail 7;

[0042] It is of great significance to the performance and stability of torsion bar springs.

[0043] Guiding function: The slide rail 7 on the inner wall of sleeve 5 and the slide bar 8 on the side wall of slide rod 6 cooperate to provide precise guidance for the sliding of slide rod 6 within sleeve 5. When torsion bar 1 is subjected to force and undergoes torsion or displacement, slide rod 6 needs to slide smoothly within sleeve 5. The cooperation between slide rail 7 and slide bar 8 acts like a track, restricting the direction of movement of slide rod 6, ensuring that it can only slide along the direction of slide rail 7. This prevents slide rod 6 from deviating, wobbling, or jamming during sliding, ensuring the stability and reliability of the torsion bar spring during operation.

[0044] Limiting function: The design of the four slide rails 7 and four slide bars 8 not only serves as a guide but also has a certain limiting function. They restrict the range of movement of the slide bar 6 within the sleeve 5, preventing the slide bar 6 from detaching from the sleeve 5. This limiting design is an important guarantee for the normal operation of the torsion bar spring. If the slide bar 6 detaches from the sleeve 5, the entire structure of the torsion bar spring will be destroyed, and it will be unable to perform its functions of buffering and shock absorption.

[0045] Improved load-bearing capacity and uniform force distribution: The design of multiple slide rails 7 and slide bars 8 increases the contact area between the slide rod 6 and the sleeve 5. During the operation of the torsion bar spring, when subjected to external forces, these contact points can evenly distribute the load, making the force distribution on the slide rod 6 and sleeve 5 more uniform. Compared to a single slide rail 7 and slide bar 8 design, four slide rails 7 and slide bars 8 can withstand greater loads, improving the load-bearing capacity of the torsion bar spring and extending its service life.

[0046] Easy to manufacture and install: From a manufacturing perspective, the one-piece molded slide bar 8 and the slide rail 7 set on the inner wall of the sleeve 5 are relatively simple to manufacture and easy to mass-produce. During installation, this structure has high fitting precision, is easy to install, and can improve production efficiency and reduce production costs.

[0047] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A torsion bar spring comprising two torsion bars (1), characterized in that: One end of the torsion bar (1) is fixedly connected to a folding bar (2), and the folding bar (2) is provided with a positioning mounting hole (3). A helical spring (4) is fixedly connected between the two torsion bars (1). Inside the helical spring (4), a sleeve (5) and a slide bar (6) are fixedly installed at both ends of the torsion bar (1), respectively. The slide bar (6) slides inside the sleeve (5) without disengaging.

2. A torsion bar spring according to claim 1, characterized in that: The torsion bar (1) has a torsion shape and is quadrilateral in cross-section. The entire bar is twisted regularly along the axial direction to form a spiral shape.

3. A torsion bar spring according to claim 1, characterized in that: The two folding rods (2) can be installed at any angle of 360° on the plane.

4. A torsion bar spring according to claim 1, characterized in that: The inner wall of the sleeve (5) is provided with a slide (7).

5. A torsion bar spring according to claim 4, characterized in that: There are four slides (7).

6. A torsion bar spring according to claim 5, characterized in that: Four slide bars (8) are integrally formed on the side wall of the slide bar (6).

7. A torsion bar spring according to claim 6, characterized in that: The slider (8) slides in the slide rail (7).

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