Leg bending trainer
By designing adjustable foam components and adjustment mechanisms, the problem of large footprint and difficult to move is solved, and the angle and height adjustment is achieved according to the length, thick legs and thin legs of different groups of people, improving the comfort and versatility of use.
Patent Information
- Application Number
- CN202421926050.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-08-09
AI Technical Summary
The existing bent leg trainer covers a large area and is not easy to move. It is impossible to adjust the angle and height of the foam according to the length, thickness and thin legs of different groups of people, and has poor versatility.
A bent leg trainer including base, standpipe, swing arm tube, counterweight tube and foam assembly is designed. The adjustable angle and height of foam is achieved through the adjustment mechanism and bolt connection, which meets the needs of different groups of people.
It solves the problem of limited placement, the structure is simple and flexible, and can adjust the angle according to the length, thick legs and thin legs of different groups of people, improving the comfort and versatility of use.
Smart Images
Figure CN223042082U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fitness equipment, in particular to a leg-curving trainer. Background Art
[0002] A leg-curving trainer is a fitness equipment for exercising the strength and flexibility of the lower limbs, and has a high usage popularity rate in places such as gymnasiums. Due to its large floor area, its placement is restricted and it is not easy to move. Therefore, it is not very suitable for popularization and use in small places such as ordinary families. In addition, the leg-curving trainers used in small places still have many deficiencies in actual use: First, the legs of different people have different lengths and thicknesses, and the angle formed by the foam on the upper and lower sides of the leg-curving trainer is fixed and cannot be adjusted according to the actual situation of different people. For example, many people with thick legs find it difficult to easily clip their legs onto the lower foam, or many people with long legs find it difficult to clip the instep onto the lower foam, and its versatility is poor; Second, different people have different requirements for the height of the upper foam of the leg-curving trainer, and the existing leg-curving trainer cannot adjust the height of the upper foam according to people's habits, and cannot meet the needs of different groups of people. Content of the Utility Model
[0003] In order to make up for the deficiencies of the prior art, the utility model provides a leg-curving trainer, which effectively solves the problems of restricted placement and difficult movement in the prior art. The structure design is simple, small and flexible, convenient and adjustable, and can be adjusted at corresponding angles according to the different leg lengths, leg shortness, leg thickness and leg thinness of different groups of people to meet the needs of various groups of people, effectively improving the comfort of use and the versatility of the equipment, thereby solving the technical problems existing in the prior art.
[0004] The technical solution adopted by the utility model to solve the above technical problems is:
[0005] A leg-curving trainer includes a base and a vertical pipe arranged on one side of the base. On the upper part of the right side wall of the vertical pipe, a base plate is installed. Bearing seats are symmetrically arranged on the front and rear sides of the base plate respectively. A swing arm pipe is movably hinged between the two bearing seats through a rotating shaft arranged at the end of its inner end. A tail pipe is arranged at the bottom of the outer end of the swing arm pipe. A counterweight pipe is arranged in the middle of the surface of the swing arm pipe, and the counterweight pipe is perpendicular to the swing arm pipe. A lower foam assembly is arranged on the right side of the vertical pipe, and the lower foam assembly is connected to the swing arm pipe through an adjusting mechanism. On the upper part of the front side wall of the vertical pipe, a plurality of first through holes penetrating the vertical pipe are evenly spaced along its height direction. A upper foam assembly is arranged in one of the first through holes, and the upper foam assembly is arranged parallel to the lower foam assembly.
[0006] Optionally, the adjusting mechanism includes a long slot formed on one side of the inner end of the swing arm tube along the length direction of the swing arm tube. A plurality of second through holes penetrating the swing arm tube are evenly spaced along the length direction on the front side wall of the swing arm tube. An adjusting arm tube, the upper end of which is snapped into the swing arm tube through the long slot and fixed to one of the second through holes of the swing arm tube by a first bolt, and the lower end of which is connected to the lower foam assembly. Adjusting plates are symmetrically arranged on both the front and rear sides of the adjusting arm tube. A plurality of third through holes are evenly spaced along the length direction on the adjusting plates. A second bolt that is movably hinged to the middle part of the adjusting arm tube is arranged in one of the third through holes at the lower ends of the two adjusting plates. A third bolt that is movably hinged to the adjusting arm tube is arranged in one of the third through holes at the upper ends of the two adjusting plates. The third bolt passes through one of the second through holes of the swing arm tube.
[0007] Optionally, the lower foam assembly includes a lower foam tube horizontally passing through the lower part of the adjusting arm tube. Flipping foams are symmetrically arranged on the lower foam tubes on both the front and rear sides of the adjusting arm tube.
[0008] Optionally, a U-shaped guard plate is clamped on the lower adjusting arm tube. The lower foam tube horizontally passes through the two free sections of the U-shaped guard plate. A fourth bolt is arranged on the connecting section of the U-shaped guard plate. The fourth bolt sequentially passes through the U-shaped guard plate and the adjusting arm tube and is fixed thereto.
[0009] Optionally, the upper foam assembly includes an upper foam tube horizontally passing through one of the first through holes of the vertical tube. Fixed foams are symmetrically arranged on the upper foam tubes on both the front and rear sides of the vertical tube.
[0010] Optionally, a buffer pad is provided at the bottom of the tail tube.
[0011] Optionally, a retaining ring sleeved on the counterweight tube is provided on the surface of the swing arm tube. A buffer ring sleeved on the counterweight tube is provided on the retaining ring.
[0012] Optionally, a plurality of fourth through holes penetrating the swing arm tube are provided along the length direction on the surface of the swing arm tube. A fifth bolt is provided below the swing arm tube. The fifth bolt passes through one of the fourth through holes and is connected to the inner end face of the counterweight tube.
[0013] The utility model adopts the above technical solutions and has the following advantages: effectively solving the problems of limited placement and difficult movement existing in the prior art, with a simple structure design, being small, flexible, convenient and adjustable, capable of performing corresponding angle adjustments according to different leg lengths, leg shortness, leg thicknesses, and leg thinnesses of different people to meet the needs of various people, effectively improving the comfort of use, and improving the versatility of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is a three-dimensional structural schematic diagram of the utility model;
[0015] Figure 2Schematic diagram of the three-dimensional structure of the base, vertical pipe, and substrate;
[0016] Figure 3 Schematic diagram of the three-dimensional structure of the adjusting mechanism;
[0017] Figure 4 Schematic diagram of the three-dimensional structure of the U-shaped guard plate;
[0018] In the figure, 1 is the base; 2 is the vertical pipe; 3 is the substrate; 4 is the bearing seat; 5 is the swing arm pipe; 6 is the rotating shaft; 7 is the tail pipe; 8 is the counterweight pipe; 9 is the first through hole; 10 is the long slot; 11 is the second through hole; 12 is the adjusting arm pipe; 13 is the first bolt; 14 is the adjusting plate; 15 is the third through hole; 16 is the second bolt; 17 is the third bolt; 18 is the lower foam pipe; 19 is the flipping foam; 20 is the U-shaped guard plate; 21 is the fourth bolt; 22 is the upper foam pipe; 23 is the fixed foam; 24 is the buffer pad; 25 is the retaining ring; 26 is the buffer ring; 27 is the fourth through hole; 28 is the fifth bolt. Detailed implementation manners
[0019] To clearly illustrate the technical features of this solution, the present utility model will be elaborated in detail below through specific implementation manners and in combination with the attached drawings. In the following description, many specific details are set forth in order to fully understand this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the protection scope of this application is not limited by the specific embodiments disclosed below.
[0020] In addition, in the description of this application, it should be understood that the orientation or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to this application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, "a plurality" means two or more, unless otherwise specifically defined.
[0021] In this application, unless otherwise clearly specified and defined, terms such as "installation", "connection", "attachment", "fixation", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances. In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.
[0022] As Figures 1-4 shown, a bent-leg trainer includes a base 1 and a vertical pipe 2 disposed on one side of the base 1. A substrate 3 is installed on the upper part of the right side wall of the vertical pipe 2. Bearing seats 4 are symmetrically provided on the front and rear sides of the substrate 3 respectively. A swing arm pipe 5 is movably hinged between the two bearing seats 4 through a rotating shaft 6 provided at the inner end of the swing arm pipe 5. A tail pipe 7 is provided at the bottom of the outer end of the swing arm pipe 5. A counterweight pipe 8 is provided in the middle of the surface of the swing arm pipe 5, and the counterweight pipe 8 is perpendicular to the swing arm pipe 5. A foam lower assembly is provided on the right side of the vertical pipe 2, and the foam lower assembly is connected to the swing arm pipe 5 through an adjusting mechanism. A plurality of first through holes 9 penetrating the vertical pipe 2 are uniformly spaced along the height direction on the upper part of the front side wall of the vertical pipe 2. A foam upper assembly is provided in one of the first through holes 9, and the foam upper assembly is parallel to the foam lower assembly.
[0023] Optionally, the adjusting mechanism includes a long hole 10 opened on one side of the inner end of the swing arm pipe 5 along the length direction of the swing arm pipe 5. A plurality of second through holes 11 penetrating the swing arm pipe 5 are uniformly spaced along the length direction on the front side wall of the swing arm pipe 5. An adjusting arm pipe 12, the upper end of which is snapped into the swing arm pipe 5 from the long hole 10 and fixed to one of the second through holes 11 of the swing arm pipe 5 through a first bolt 13, and the lower end of which is connected to the foam lower assembly. Adjusting plates 14 are symmetrically provided on the front and rear sides of the adjusting arm pipe 12 respectively. A plurality of third through holes 15 are uniformly spaced along the length direction on the adjusting plates 14. A second bolt 16 that is movably hinged to the middle of the adjusting arm pipe 12 is provided in one of the third through holes 15 at the lower ends of the two adjusting plates 14. A third bolt 17 that is movably hinged to the adjusting arm pipe 12 is provided in one of the third through holes 15 at the upper ends of the two adjusting plates 14, and the third bolt 17 passes through one of the second through holes 11 of the swing arm pipe 5.
[0024] Optionally, the lower foam component includes a lower foam tube 18 that horizontally passes through the lower part of the adjusting arm tube 12. Flipping foams 19 are symmetrically arranged on the lower foam tube 18 on the front and rear sides of the adjusting arm tube 12 respectively.
[0025] Optionally, a U-shaped guard plate 20 is clamped on the lower adjusting arm tube 12. The lower foam tube 18 horizontally passes through the two free sections of the U-shaped guard plate 20. A fourth bolt 21 is provided on the connecting section of the U-shaped guard plate 20. The fourth bolt 21 sequentially passes through the U-shaped guard plate 20 and the adjusting arm tube 12 and is fixed thereto. Through the U-shaped guard plate 20, the connection strength between the lower foam component and the adjusting arm tube 12 can be further improved.
[0026] Optionally, the upper foam component includes an upper foam tube 22 that horizontally passes through one of the first through holes 9 of the vertical tube 2. Fixed foams 23 are symmetrically arranged on the upper foam tube 22 on the front and rear sides of the vertical tube 2 respectively.
[0027] Optionally, a buffer pad 24 is provided at the bottom of the tail tube 7. By means of the buffer pad 24, the bottom end of the tail tube 7 can be prevented from directly contacting the ground, effectively preventing damage to the ground.
[0028] Optionally, a retaining ring 25 sleeved on the counterweight tube 8 is provided on the surface of the swing arm tube 5, and a buffer ring 26 sleeved on the counterweight tube 8 is provided on the retaining ring 25. When the bell plates are successively snapped onto the counterweight tube 8, the retaining ring 25 can prevent the bell plates from directly contacting the swing arm tube 5, reducing the impact of the bell plates on the swing arm tube 5, and the buffer ring 26 can further buffer the bell plates, reducing the extrusion of the retaining ring 25 during the up-and-down swing of the swing arm tube 5.
[0029] Optionally, a number of fourth through holes 27 penetrating the swing arm tube 5 are provided on the surface of the swing arm tube 5 along its length direction. A fifth bolt 28 is provided below the swing arm tube 5. The fifth bolt 28 passes through one of the fourth through holes 27 and is connected to the inner end face of the counterweight tube 8. The farther out the installation position of the counterweight tube 8 is, the greater the force received by the swing arm tube 5 when assembling the bell plates, thus facilitating people to adjust the resistance.
[0030] Before using the trainer, its position needs to be fixed. Use a seat or other sitting / lying device to press it on the base 1, thus firmly fixing the trainer. People can adjust the position of the components on the foam on the vertical tube 2 according to their own needs, so that the popliteal fossa of the human body can be comfortably stuck on the two fixed foams 23. At the same time, people can also adjust the adjusting mechanism according to the length or thickness of their own legs. When the legs are thick, the first bolt 13 and the third bolt 17 can be unscrewed, so that the adjusting arm tube 12 moves to the right in the long hole 10 of the swing arm tube 5. After the flipping foam 19 and the fixed foam 23 are staggered in the horizontal position by a sufficient distance to allow the legs to be inserted, then use the third bolt 17 to fix the two adjusting plates 14 on the swing arm tube 5, thus fixing the position of the adjusting arm tube 12. When a person with long legs uses it, the third bolt 17 can be unscrewed, so that the adjusting arm tube 12 rotates to the right along the direction of the first bolt 13, thus increasing the distance between the elongated flipping foam 19 and the fixed foam 23. After the length meets the requirement, then use the third bolt 17 to fix the two adjusting plates 14 on the swing arm tube 5, thus fixing the position of the adjusting arm tube 12. It effectively solves the problems of limited placement and difficult movement existing in the prior art. The structure design is simple, small and flexible, convenient and adjustable. It can make corresponding angle adjustments according to the different leg lengths, leg shorts, leg thicknesses and leg thinnesses of different people to meet the needs of various people, effectively improving the comfort of use and the versatility of the equipment, thus solving the technical problems existing in the prior art.
[0031] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered by the scope of the claims and the description of the present invention; for those skilled in the art of this technology, any alternative improvement or transformation made to the embodiments of the present invention falls within the protection scope of the present invention.
[0032] The details not described in the present invention are all well-known technologies to those skilled in the art of this technology.
Claims
1. A leg curling training device, characterized in that: It includes a base and a vertical tube vertically arranged on one side of the base, a base plate is installed on the upper part of the right side wall of the vertical tube, and bearing seats are symmetrically arranged on the front and rear sides of the base plate respectively. A swing arm tube is movably hinged between the two bearing seats through a rotating shaft arranged at its inner end, a tail pipe is arranged at the bottom of the outer end of the swing arm tube, a counterweight tube is arranged in the middle of the surface of the swing arm tube, and the counterweight tube is arranged perpendicular to the swing arm tube. A foam lower component is arranged on the right side of the vertical tube, and the foam lower component is connected to the swing arm tube through an adjusting mechanism. A plurality of first through holes that penetrate the vertical tube are evenly spaced along the height direction of the vertical tube on the upper part of the front side wall, and a foam upper component is arranged in one of the first through holes, and the foam upper component is arranged in parallel with the foam lower component.
2. A leg curling training device according to claim 1, characterized in that: The adjusting mechanism comprises a long hole opened on one side of the inner end of the swing arm tube along the length direction of the swing arm tube, a plurality of second through holes penetrating the swing arm tube are evenly spaced along the length direction on the front side wall of the swing arm tube, an adjusting arm tube, the upper end of which is inserted into the swing arm tube from the long hole and fixed in one of the second through holes of the swing arm tube by a first bolt, and the lower end of which is connected to the foam lower component, and adjusting plates are symmetrically arranged on the front and rear sides of the adjusting arm tube, and a plurality of third through holes are evenly spaced along the length direction on the adjusting plate, a second bolt hinged to the middle part of the adjusting arm tube movably is arranged in one of the third through holes at the lower ends of the two adjusting plates, a third bolt hinged to the adjusting arm tube movably is arranged in one of the third through holes at the upper ends of the two adjusting plates, and the third bolt passes through one of the second through holes of the swing arm tube.
3. A leg curling training device according to claim 2, characterized in that: The foam lower component comprises a foam lower tube horizontally passing through the lower part of the adjusting arm tube, and flip foams are symmetrically arranged on the foam lower tubes at the front and rear sides of the adjusting arm tube.
4. A leg curling training device according to claim 3, characterized in that: A U-shaped guard plate is clamped on the lower adjusting arm tube, and the foam lower tube horizontally passes through the two free sections of the U-shaped guard plate. A fourth bolt is provided on the connecting section of the U-shaped guard plate, and the fourth bolt passes through the U-shaped guard plate and the adjusting arm tube in sequence and is fixed thereto.
5. The leg curling training device according to claim 1, characterized in that: The foam upper component comprises a foam upper tube horizontally passing through one of the first through holes of the vertical tube, and fixed foams are symmetrically arranged on the foam upper tube at the front and rear sides of the vertical tube.
6. The leg curling training device according to claim 1, characterized in that: A buffer pad is provided at the bottom of the tail pipe.
7. The leg curling training device according to claim 1, characterized in that: A retaining ring sleeved on the counterweight tube is arranged on the surface of the swing arm tube, and a buffer ring sleeved on the counterweight tube is arranged on the retaining ring.
8. The leg curling training device according to claim 1, characterized in that: A plurality of fourth through holes penetrating the swing arm tube are arranged on the surface of the swing arm tube along its length direction, a fifth bolt is arranged below the swing arm tube, and the fifth bolt passes through one of the fourth through holes and is connected with the inner end surface of the counterweight tube.