Torsion mechanism of fitness device, fitness stool and fitness chair
By combining the design of vertical bars, ball joints, and elastic components, the problem of insufficient freedom of movement in existing rotating stools has been solved, enabling multi-dimensional movement and automatic centering, thus enhancing fitness effects and user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-04-07
AI Technical Summary
Existing swivel stools or fitness chairs lack sufficient freedom of movement, automatic centering, and damping adjustment, resulting in a poor user experience.
The design employs a vertical rod, ball joint, elastic element, and mounting base. The ball joint connects to the mounting base to enable multi-dimensional movement of the vertical rod, while the elastic element provides appropriate rotational resistance. Combined with the limiting groove and limiting element, the swing angle is limited, achieving automatic centering and damping adjustment.
It enhances fitness results, providing multi-dimensional movement functions such as left and right twisting and swinging, making exercise more stable and safe, and meeting diverse user needs.
Smart Images
Figure CN224085929U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fitness equipment technology, and in particular to a torsion mechanism for a fitness device and a fitness stool and chair. Background Technology
[0002] The current fitness and entertainment market offers some benches or chairs with fitness functions, such as swivel benches and fitness chairs, which are typically used to promote core muscle training and enhance waist and abdominal strength.
[0003] Existing swivel benches or fitness chairs typically have a simple structure, consisting of a seat and a base, relying on bearings for rotation or a gas spring for height adjustment. These existing swivel benches or fitness chairs only offer a single rotation or height adjustment function, lacking multi-dimensional freedom of movement and failing to meet users' diverse needs for fitness and entertainment.
[0004] Specifically, this manifests in the following aspects: Limited degrees of freedom: Most existing swivel stools can only achieve single rotational movement and cannot tilt; Lack of automatic centering function: Existing products usually do not have an automatic centering function, causing the stool surface to fail to return to its original position after deviating from the center; Lack of damping adjustment: Existing swivel stools cannot provide appropriate rotational resistance, resulting in a poor user experience when rotating, and lack of progressive torsional resistance. Utility Model Content
[0005] The purpose of this utility model is to provide a torsion mechanism for a fitness device and a fitness stool / chair to solve the problems of insufficient freedom of movement and lack of centering function in existing rotating stools. The torsion mechanism of this utility model can provide multi-dimensional movement functions such as left and right torsion and swing, which enhances the fitness effect. The unique centering function and appropriate rotational resistance design make the exercise more stable and safe.
[0006] The present invention provides a torsion mechanism for a fitness device, comprising a vertical rod, an elastic element, and a mounting base. The bottom end of the vertical rod is connected to a ball joint, and a ball seat adapted to the ball joint is provided on the mounting base. The ball joint is rotatably mounted in the ball seat. The elastic element is provided on the outside of the ball seat, with one end connected to the bottom plate of the vertical rod and the other end connected to the mounting base.
[0007] As a preferred embodiment of this utility model, an upward-opening limiting groove is provided on the mounting base, the limiting groove is arranged around the outer periphery of the ball seat, and the bottom end of the elastic member is limited in the limiting groove.
[0008] As a preferred embodiment of this utility model, a limiting member is connected to the bottom of the ball joint, a lower opening is provided at the bottom of the ball seat, and a receiving cavity located below the ball seat is provided inside the mounting base. The receiving cavity communicates with the inside of the ball seat through the lower opening. The limiting member extends through the lower opening and into the receiving cavity. There are gaps between the limiting member, the side wall of the lower opening, and the receiving cavity.
[0009] As a preferred embodiment of this utility model, the diameter of the lower opening gradually increases from top to bottom.
[0010] As a preferred embodiment of this utility model, a limiting ring is provided around the limiting member, and the limiting ring protrudes outward from the side wall of the limiting member.
[0011] As a preferred embodiment of this utility model, it further includes a fixing base, the fixing base being vertically adjustable to the bottom of the mounting base, a connecting part being provided inside the fixing base, and the bottom end of the limiting member being detachably connected to the connecting part.
[0012] As a preferred embodiment of this utility model, the connecting part is an upwardly oriented connecting post, and a limiting sleeve adapted to the connecting post is provided at the bottom end of the limiting member. The limiting sleeve is detachably connected to the connecting post.
[0013] As a preferred embodiment of this utility model, an upward-opening receiving groove is provided on the inner side of the fixed base, the connecting column is disposed in the receiving groove, an external thread is provided on the outer wall of the receiving groove, an internal thread section is provided on the inner wall of the receiving cavity of the mounting base, the fixed base is installed on the mounting base in an adjustable manner by means of the thread, and the receiving groove and the receiving cavity are in relative communication.
[0014] This utility model also provides a fitness stool, including a stool surface, a base, and a torsion mechanism of the fitness device. The stool surface is installed at the top of the vertical rod, the base is connected to the mounting seat, and a flexible corrugated tube is provided on the outside of the mounting seat. One end of the flexible corrugated tube is connected to the vertical rod and the other end is connected to the base.
[0015] This utility model also provides a fitness chair, including a seat, a base, and a torsion mechanism of the fitness device. The seat is installed at the top of the vertical rod, the base is connected to the mounting seat, and a flexible corrugated tube is provided on the outside of the mounting seat. One end of the flexible corrugated tube is connected to the vertical rod and the other end is connected to the base.
[0016] Compared with the prior art, the present invention has the following positive effects:
[0017] The torsion mechanism of this fitness device includes a vertical rod, an elastic element, and a mounting base. A ball joint is connected to the bottom end of the vertical rod. A ball seat adapted to the ball joint is provided on the mounting base. The ball joint is rotatably mounted in the ball seat. The elastic element is located on the outside of the ball seat, with one end connected to the bottom plate of the vertical rod and the other end connected to the mounting base. In this invention, the vertical rod and mounting base are connected via the ball joint, allowing the vertical rod to move at a conical angle relative to the mounting base, i.e., tilting left and right and rotating. The elastic element automatically returns the vertical rod to center, and it provides appropriate resistance during torsion. When used on a fitness bench, the top of the vertical rod can be connected to the bench surface, and the mounting base can be connected to the support base. This allows the fitness bench to tilt left and right, rotate, perform multi-degree-of-freedom movements, and automatically return to center, while providing appropriate damping during torsion. This addresses the problems of insufficient freedom of movement, lack of centering function, and inadequate damping adjustment in existing technologies. Compared to traditional swivel benches, this torsion mechanism offers multi-dimensional movement functions such as left and right twisting and swinging, enhancing the fitness effect. The unique centering function and appropriate rotational resistance design make the exercise more stable and safer. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.
[0019] Figure 1 This is a schematic diagram of the torsion mechanism of a fitness device of the utility model.
[0020] Figure 2 This is a diagram showing the internal connection structure of the torsion mechanism in a fitness device of the utility model.
[0021] Figure 3 The first-view exploded view of the torsion mechanism of the fitness device of the utility model;
[0022] Figure 4 The second perspective of the exploded view of the torsion mechanism of the fitness device of the utility model;
[0023] Figure 5 This is an internal structural diagram of the torsion mechanism of the fitness device of the utility model when used on a fitness bench;
[0024] Figure 6 This is an external structural diagram of the torsion mechanism of the utility model fitness device when used on a fitness bench.
[0025] In the diagram: 1. Vertical rod; 2. Base plate; 21. Mounting head; 22. Mounting hole; 3. Ball joint; 4. Mounting seat; 41. Limiting groove; 42. Ball seat; 43. Lower opening; 44. Receiving cavity; 45. Mounting groove; 5. Elastic element; 6. Limiting element; 61. Limiting ring; 62. Limiting sleeve; 63. Connecting head; 7. Fixed seat; 71. Receiving groove; 72. Connecting column; 73. External thread; 8. Bolt; 9. Stool surface; 10. Base; 101. Flexible corrugated pipe. Detailed Implementation
[0026] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and for simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0027] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0028] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.
[0029] Example 1:
[0030] This embodiment provides a torsion mechanism for a fitness device, such as... Figures 1-6 As shown, it includes a vertical rod 1, an elastic element 5, and a mounting base 4. The bottom end of the vertical rod 1 is connected to a ball joint 3, and a ball seat 42 adapted to the ball joint 3 is provided on the mounting base 4. The ball joint 3 is rotatably mounted in the ball seat 42.
[0031] The elastic element 5 is disposed on the outside of the ball seat 42, with one end connected to the base plate 2 of the vertical rod 1 and the other end connected to the mounting base 4. The elastic element 5 can be an elastic pad or a pneumatic structure made of different materials to provide a lighter or stronger support effect. Preferably, the elastic element 5 is a spring.
[0032] In this embodiment, the vertical rod 1 and the mounting base 4 are connected to the ball seat 42 via the ball joint 3, so that the vertical rod 1 can move at a conical angle relative to the mounting base 4, that is, tilt left and right and rotate. Furthermore, by setting the elastic element 5, the tilting and swinging of the vertical rod 1 can automatically return to center. The elastic element 5 has a certain rotational resistance, so that the vertical rod 1 has appropriate resistance when twisting.
[0033] When the torsion mechanism of this embodiment is used on a fitness bench, the top of the vertical rod 1 can be connected to the bench surface, and the mounting base 4 can be connected to the support base. This allows the fitness bench to have left and right tilting, rotation, multi-degree-of-freedom movement functions, and automatic centering capability, while providing appropriate damping during torsion. This solves the problems of insufficient freedom of movement, lack of centering function, and insufficient damping adjustment in existing technologies. Compared to traditional rotating benches, the torsion mechanism of this embodiment provides multi-dimensional movement functions such as left and right torsion and swinging, enhancing the fitness effect. The unique centering function and appropriate rotational resistance design make the exercise more stable and safer.
[0034] As a preferred embodiment, such as Figure 2 and Figure 3 As shown, a limiting groove 41 with an upward opening is provided on the mounting base 4. The limiting groove 41 is arranged around the outer periphery of the ball seat 42 and is annular. The height of the side wall of the limiting groove 41 near the center of the mounting base 4 is greater than the height of the side wall away from the center of the mounting base 4. The bottom end of the elastic member 5 is confined in the limiting groove 41. When the elastic member 5 is a spring, the bottom end of the spring is engaged with the bottom plate of the limiting groove 41 so that the elastic member 5 is prevented from rotating when the vertical rod 1 rotates relative to the mounting base 4. Under the action of torque, the elastic member 5 can make the vertical rod 1 rotate automatically.
[0035] In this embodiment, the limiting groove 41 provides a limit for the elastic element 5, making the elastic element 5 more stable during deformation and improving safety.
[0036] Specifically, an annular protrusion is formed on the side wall of the limiting groove 41 near the center of the mounting base 4, and a mounting groove 45 is formed on the inner side of the annular protrusion, in which the ball seat 42 is installed.
[0037] As a preferred embodiment, such as Figures 2-4 As shown, a limiting member 6 is connected to the bottom of the ball joint 3, and a lower opening 43 is provided at the bottom of the ball seat 42. A receiving cavity 44 is provided inside the mounting base 4, located below the ball seat 42, and the receiving cavity 44 communicates with the interior of the ball seat 42 through the lower opening 43. The limiting member 6 extends through the lower opening 43 into the receiving cavity 44, and is connected to the bottom of the ball joint 3 by bolts 8. The limiting member 6 can be made of aluminum alloy.
[0038] Specifically, a base plate 2 is connected to the bottom end of the vertical rod 1. A downwardly extending mounting head 21 is provided on the base plate 2. A ball joint 3 is connected to the mounting head 21, and the ball joint 3 is interference-fitted with the mounting head 21. A limiting member 6 is connected to the mounting head 21 by a bolt 8. A mounting hole 22 is provided on the base plate 2, and a spring is connected to the mounting hole 22.
[0039] Preferably, there are gaps between the limiting member 6 and the side wall of the lower opening 43 and the receiving cavity 44, so that the vertical rod 1 can drive the limiting member 6 to swing together. Preferably, anti-collision rubber is provided on the inner wall of the receiving cavity 44 to reduce the wear of the limiting member 6.
[0040] In this embodiment, by connecting a limiting member 6 to the bottom of the ball joint, the swing angle of the vertical rod 1 can be limited when the vertical rod 1 swings, so that the vertical rod 1 can swing within an angle of 15 degrees, and automatically return to the center position after leaving the tilt angle through the action of the elastic member 5.
[0041] As a preferred embodiment, such as Figure 2 As shown, the lower opening 43 gradually increases in diameter from top to bottom, so that when the vertical rod 1 swings, it can avoid the limiting member 6 within a certain angle range, and the side wall of the lower opening 43 can limit the swing amplitude of the limiting member 6.
[0042] In a preferred embodiment, a limiting ring 61 is provided around the limiting member 6, and the limiting ring 61 protrudes outward from the side wall of the limiting member 6. The limiting ring 61 can further enhance the limiting effect of the limiting member 6.
[0043] Specifically, such as Figure 3 As shown, the limiting component 6 includes a connector 63, a limiting ring 61, and a limiting sleeve 62. The connector 63, the limiting ring 61, and the limiting sleeve 62 are connected in sequence from top to bottom. The connector 63 is used for the bolt to pass through and connect to the bottom of the ball joint 3.
[0044] As a preferred embodiment, such as Figure 2 As shown, the torsion mechanism of the fitness device in this embodiment also includes a fixed seat 7. The fixed seat 7 is vertically adjustable to the bottom of the mounting seat 4. A connecting part is provided inside the fixed seat 7, and the bottom end of the limiting member 6 is detachably connected to the connecting part.
[0045] When the bottom end of the limiting member 6 is connected to the connecting part of the fixed base 7, it can restrict the swing of the vertical rod 1. At this time, the vertical rod 1 can only rotate relative to the mounting base 4. When the bottom end of the limiting member 6 is separated from the connecting part of the fixed base 7, the vertical rod 1 can swing within a certain angle range.
[0046] In a preferred embodiment, the connecting part is an upwardly oriented connecting post 72, and a limiting sleeve 62 adapted to the connecting post is provided at the bottom end of the limiting member 6. The limiting sleeve 62 is detachably connected to the connecting post 72.
[0047] In this embodiment, the limiting member 6 and the fixed seat 7 are connected by the limiting sleeve 62 on the connecting column 72, which is convenient to disassemble and assemble, and facilitates the adjustment of the swing limit of the vertical rod 1.
[0048] In a preferred embodiment, an upward-opening receiving groove 71 is provided on the inner side of the fixing base 7, and a connecting post 72 is disposed in the receiving groove 71. An external thread 73 is provided on the outer wall of the receiving groove 71. The receiving cavity 44 has a downward-facing opening, and an internal thread section is provided on the inner wall of the receiving cavity 44 of the mounting base 4. The fixing base 7 is adjustablely mounted on the mounting base 4 via the thread, and the receiving groove 71 and the receiving cavity 44 are in relative communication.
[0049] In this embodiment, the vertical movement of the fixed seat 7 relative to the mounting seat 4 can be adjusted by rotating the fixed seat 7. When the fixed seat 7 moves upward relative to the mounting seat 4, the connecting column 72 is inserted into the limiting sleeve 62, thereby limiting the swing of the vertical rod 1. When the fixed seat 7 moves downward relative to the mounting seat 4, the connecting column 72 is dislodged from the limiting sleeve 62, and the vertical rod 1 can swing at this time.
[0050] Additionally, it should be noted that a damping adjuster can be installed in mounting base 4, allowing users to adjust the torsional resistance according to their needs. Sensors can be added to record the angle and frequency of the user's movements, further expanding into the field of smart fitness.
[0051] This embodiment also provides a fitness bench, such as Figure 5 and Figure 6 It includes a bench seat 9, a base 10 and the torsion mechanism of the fitness device mentioned above. The bench seat 9 is installed at the top of the vertical rod 1. The base 10 is connected to the mounting seat 4. A flexible corrugated tube 101 is provided on the outside of the mounting seat 4. One end of the flexible corrugated tube 101 is connected to the vertical rod 1 and the other end is connected to the base 10.
[0052] This embodiment also provides a fitness chair, including a seat, a base 10 and the torsion mechanism of the fitness device described above. The seat is installed at the top of the vertical rod 1, the base 10 is connected to the mounting seat 4, and a flexible corrugated tube 101 is provided on the outside of the mounting seat 4. One end of the flexible corrugated tube 101 is connected to the vertical rod 1 and the other end is connected to the base 10.
[0053] In this embodiment, the exercise bench or chair features a centering function and appropriate rotational resistance, making exercise more stable and safer. Furthermore, the twisting mechanism can be locked and unlocked by the user, allowing for ±45° rotation with resistance.
[0054] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any modifications and improvements made by those skilled in the art without departing from the inventive concept of the present utility model should be covered within the protection scope of the present utility model.
Claims
1. A torsion mechanism for a fitness device, characterized in that, The device includes a vertical rod (1), an elastic element (5), and a mounting base (4). The bottom end of the vertical rod (1) is connected to a ball joint (3). A ball seat (42) adapted to the ball joint (3) is provided on the mounting base (4). The ball joint (3) is rotatably installed in the ball seat (42). The elastic element (5) is located on the outside of the ball seat (42), with one end connected to the bottom plate (2) of the vertical rod (1) and the other end connected to the mounting base (4).
2. The torsion mechanism of a fitness device according to claim 1, characterized in that, A limiting groove (41) with an upward opening is provided on the mounting base (4). The limiting groove (41) is arranged around the outer periphery of the ball seat (42). The bottom end of the elastic member (5) is limited in the limiting groove (41).
3. The torsion mechanism of a fitness device according to claim 1, characterized in that, A limiting member (6) is connected to the bottom of the ball joint (3). A lower opening (43) is provided at the bottom of the ball seat (42). A receiving cavity (44) located below the ball seat (42) is provided inside the mounting base (4). The receiving cavity (44) communicates with the inside of the ball seat (42) through the lower opening (43). The limiting member (6) extends through the lower opening (43) and into the receiving cavity (44). There are gaps between the limiting member (6), the side wall of the lower opening (43), and the receiving cavity (44).
4. The torsion mechanism of a fitness device according to claim 3, characterized in that, The lower opening (43) gradually increases in diameter from top to bottom.
5. The torsion mechanism of a fitness device according to claim 3, characterized in that, A limiting ring (61) is provided around the limiting member (6), and the limiting ring (61) protrudes outward from the side wall of the limiting member (6).
6. The torsion mechanism of a fitness device according to claim 3, characterized in that, It also includes a fixing seat (7), which is vertically adjustable to the bottom of the mounting seat (4). A connecting part is provided inside the fixing seat (7), and the bottom end of the limiting member (6) is detachably connected to the connecting part.
7. The torsion mechanism of a fitness device according to claim 6, characterized in that, The connecting part is an upwardly oriented connecting post (72), and a limiting sleeve (62) adapted to the connecting post is provided at the bottom end of the limiting member (6). The limiting sleeve (62) is detachably connected to the connecting post.
8. The torsion mechanism of a fitness device according to claim 7, characterized in that, An upward-opening receiving groove (71) is provided on the inner side of the fixed seat (7), and the connecting column (72) is provided in the receiving groove (71). An external thread (73) is provided on the outer wall of the receiving groove (71), and an internal thread section is provided on the inner wall of the receiving cavity (44) of the mounting seat (4). The fixed seat (7) is installed on the mounting seat (4) in an adjustable manner by means of the thread. The receiving groove (71) and the receiving cavity (44) are in relative communication.
9. A fitness bench, characterized in that, The fitness device includes a bench seat (9), a base (10), and a torsion mechanism as described in any one of claims 1-8. The bench seat (9) is mounted on the top of the vertical rod (1), the base (10) is connected to the mounting seat (4), and a flexible corrugated tube (101) is provided on the outside of the mounting seat (4). One end of the flexible corrugated tube (101) is connected to the vertical rod (1), and the other end is connected to the base (10).
10. A fitness chair, characterized in that, The fitness device includes a seat, a base (10), and a torsion mechanism according to any one of claims 1-8. The seat is mounted on the top of the vertical rod (1), the base (10) is connected to the mounting seat (4), and a flexible corrugated tube (101) is provided on the outside of the mounting seat (4). One end of the flexible corrugated tube (101) is connected to the vertical rod (1), and the other end is connected to the base (10).