CN223026634U - Sitting type leg stretching trainer - Google Patents
Sitting type leg stretching trainer Download PDFInfo
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- CN223026634U CN223026634U CN202421854778.4U CN202421854778U CN223026634U CN 223026634 U CN223026634 U CN 223026634U CN 202421854778 U CN202421854778 U CN 202421854778U CN 223026634 U CN223026634 U CN 223026634U
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Abstract
The utility model discloses a sitting type leg stretching trainer, which relates to the technical field of sports equipment and comprises a base, wherein the top of the base is provided with a support, the top of the support is provided with a leg stretching assembly, the leg stretching assembly comprises a fixed rod, one side of the fixed rod is provided with an adjusting assembly, the adjusting assembly comprises a rotary table, the rotary table is connected with a rotating rod, the rotating rod is provided with a fixed shaft, the fixed shaft is provided with a clamping groove, one side of the rotating rod, which is far away from the rotary table, is provided with a fixing piece, the top of the fixing piece is provided with a telescopic rod, the telescopic rod is sleeved with a spring, the top of the spring is connected with an adjusting plate, the bottom of the adjusting plate is provided with a first rotating shaft, one side of the adjusting plate, which is close to the fixed shaft, is connected with a clamping block in the clamping groove in a clamping way, one end of the rotating rod, which is far away from the rotary table, is connected with a connecting rod, one side of the connecting rod, which is far away from the rotating rod, is connected with a presser foot rod, and the distance between a seat cushion and the presser foot rod can be adjusted by setting the adjusting assembly so as to adapt to different people suffering from knee joint damage caused by improper spacing.
Description
Technical Field
The utility model relates to the technical field of sports equipment, in particular to a sitting leg extension trainer.
Background
A sitting leg extension trainer is an exercise machine specifically designed to exercise and strengthen the muscles of the legs, particularly the quadriceps femoris muscle on the front side of the thigh. It is generally composed of a seat, a back rest, foot pedals and weight selection means. The user sits on the device, and after sitting, both feet are placed on the foot pedals. By extending the knees, the user pushes the foot pedal forward, mimicking the action of riding a bicycle or pedaling water. The weight selection device allows the user to adjust the resistance according to the strength level of the user, ensuring proper training strength. The device is suitable for various people, and can be used for improving leg strength and overall health from rehabilitation patients to athletes.
The prior Chinese patent (bulletin number: CN 208481947U) proposes a transfer sitting leg stretching trainer, which comprises a base, a groove, a fixed plate and a screw, wherein the right end of the base is provided with a supporting frame.
Above-mentioned technical scheme is through setting up the lug on the support frame, effectively keeps stability in the adjustment in-process that carries out the position at this leg stretching training ware seat, prevents that body-building crowd from taking place the phenomenon that rocks when using this leg stretching training ware seat.
However, the distance between the presser foot bar and the seat cushion cannot be adjusted, and the distance between the presser foot bar and the seat cushion is different due to the fact that the thickness of the back and the thickness of the legs of each person are different, otherwise uneven stress on the knee joint is easily caused, and the sitting type leg stretching trainer is provided.
Disclosure of utility model
The utility model aims to provide a sitting leg extension trainer, which aims to solve the problems in the prior art.
In order to achieve the above purpose, the utility model provides the technical scheme that the sitting leg stretching trainer comprises a base, a support is arranged at the top of the base, a leg stretching assembly is arranged at the top of the support, the leg stretching assembly comprises a fixing rod, an adjusting assembly is arranged on one side of the fixing rod, the adjusting assembly comprises a rotary table, a rotary rod is connected to the rotary table, a fixed shaft is arranged on the rotary rod, a clamping groove is formed in the fixed shaft, a fixing piece is arranged on one side, far away from the rotary table, of the rotary rod, a telescopic rod is arranged at the top of the fixing piece, a spring is sleeved on the telescopic rod, the top of the spring is connected with an adjusting plate, a first rotating shaft is arranged at the bottom of the adjusting plate, the bottom of the first rotating shaft is rotatably connected to the fixing piece, a clamping block is connected to the bottom of one side, close to the fixed shaft, the clamping block is clamped in the clamping groove, one end, far away from the rotary table, of the rotary rod is connected with a connecting rod, and one side, far away from the rotary rod, of the presser foot rod is connected with the rod.
As a preferred implementation mode, the leg stretching assembly further comprises a frame, the frame is arranged at the top of the support, a second rotating shaft is rotationally connected to the frame, the fixing rod is rotationally connected to the second rotating shaft, and an extension rod is fixedly connected to one side, away from the second rotating shaft, of the fixing rod.
By adopting the technical scheme, the body-building crowd can exercise quadriceps femoris by arranging the leg extension assembly, and the barbell disc can be hung to increase weight by the arranged extension rod.
As a preferred implementation mode, one side of the top of the base, which is close to the presser foot bar, is provided with a lifting component, the lifting component comprises supporting legs, a sliding rod is connected in a sliding manner in the supporting legs, round holes are formed in the supporting legs, bolts are inserted into the round holes, and one side, which is far away from the supporting legs, of the sliding rod is fixedly connected with a seat cushion.
By adopting the technical scheme, the height of the seat cushion can be adjusted by arranging the lifting assembly so as to adapt to people with different heights.
As a preferred implementation mode, a support rod is arranged on one side, close to the fixing rod, of the support rod, a limiting piece is fixedly connected to one side, far away from the support rod, of the support rod, the limiting piece is made of foam, and one side, far away from the support rod, of the limiting piece is clamped with the fixing rod.
By adopting the technical scheme, the fixing rod is limited by arranging the supporting rod and the limiting piece, so that the fixing rod is prevented from falling off to damage the instrument.
As a preferred implementation mode, two extension rods are arranged, the two extension rods are respectively positioned on two sides of the base, and a sleeve is sleeved on one side, far away from the fixed rod, of each extension rod.
By adopting the technical scheme, the disc on the extension rod can be limited and fixed by arranging the sleeve, so that the disc is prevented from falling off when the extension rod moves.
As a preferred embodiment, a backrest is arranged on one side of the top of the base close to the lifting assembly, and the inclination angle of the backrest is set to be thirty degrees.
By adopting the technical scheme, the backrest with the inclination angle of thirty degrees can be arranged, so that the comfort level of body-building people can be improved.
Compared with the prior art, the utility model has the advantages and positive effects that,
1. According to the utility model, the distance between the seat cushion and the presser foot bar can be adjusted by arranging the adjusting component so as to adapt to different crowds, the damage to knee joints caused by improper spacing is avoided, the problem that the distance between the presser foot bar and the seat cushion cannot be adjusted in the device, and the injury is caused by uneven stress of the knee joints because the back thickness and the leg thickness of each person are different is solved, the height of the seat cushion can be adjusted by arranging the lifting component, the crowds with different heights can be adapted, the leg stretching component is arranged so as to help the body-building crowd exercise quadriceps, and the weight of the barbell disc can be increased by arranging the extending rod.
2. According to the utility model, the fixing rod is limited by arranging the supporting rod and the limiting piece, so that the fixing rod is prevented from falling off to damage an instrument, and the disc on the extension rod can be limited and fixed by arranging the sleeve, so that the disc is prevented from falling off when the extension rod moves.
Drawings
Fig. 1 is a front view of a sitting-type leg-stretching trainer.
FIG. 2 is a block diagram of an adjustment assembly in a sitting leg extension trainer.
Fig. 3 is a side view of a sitting leg extension trainer.
FIG. 4 is a block diagram of a lifting assembly in a sitting leg extension trainer.
Reference numerals in the drawings:
1. A base;
2. The device comprises an adjusting component, 21, a turntable, 22, a fixed shaft, 23, a clamping groove, 24, an adjusting plate, 25, a clamping block, 26, a first rotating shaft, 27, a telescopic rod, 28, a spring, 29 and a rotating rod;
3. a bracket;
4. the leg stretching assembly comprises a leg stretching assembly body 41, a frame 42, a second rotating shaft 43, a fixing rod 44 and an extending rod;
5. the sleeve, the connecting rod, the presser foot bar and the connecting rod are arranged on the sleeve;
8. Lifting components 81, supporting legs 82, sliding rods 83, round holes 84, bolts 9, seat cushions 10, backrests 11, supporting rods 12, limiting pieces 13 and fixing pieces.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1-2, a sitting leg stretching trainer comprises a base 1, a bracket 3 is arranged at the top of the base 1, a leg stretching component 4 is arranged at the top of the bracket 3, the leg stretching component 4 comprises a fixed rod 43, an adjusting component 2 is arranged at one side of the fixed rod 43, the adjusting component 2 comprises a rotary table 21, a rotary rod 29 is connected to the rotary table 21, a fixed shaft 22 is arranged on the rotary rod 29, a clamping groove 23 is arranged on the fixed shaft 22, a fixing piece 13 is arranged at one side of the rotary rod 29 far away from the rotary table 21, a telescopic rod 27 is arranged at the top of the fixing piece 13, a spring 28 is sleeved on the telescopic rod 27, an adjusting plate 24 is connected to the top of the spring 28, a first rotating shaft 26 is arranged at the bottom of the adjusting plate 24, the bottom of the first rotating shaft 26 is rotatably connected to the fixing piece 13, a clamping block 25 is connected to the bottom of one side of the adjusting plate 24 close to the fixed shaft 22, the clamping block 25 is clamped in the clamping groove 23, one end of the rotating rod 29, far away from the turntable 21, is connected with the connecting rod 6, one side of the connecting rod 6, far away from the rotating rod 29, is connected with the presser foot rod 7, through arranging the adjusting component 2, the clamping block 25 at the bottom is lifted by utilizing the telescopic rod 27 and the spring 28 sleeved on the telescopic rod, the adjusting plate 24 is pressed, then the turntable 21 is rotated, the rotating rod 29 and the fixed shaft 22 arranged on the rotating rod are driven to rotate, the rotating rod 29 drives the connecting rod 6 and the presser foot rod 7 to rotate, the fixed shaft 22 drives the clamping groove 23 arranged on the fixed shaft 22 to rotate, and finally the adjusting plate 24 is loosened to clamp the clamping block 25 in the clamping groove 23, so that the adjustment of the space between the presser foot rod 7 and the seat cushion 9 is completed, the knee joint is prevented from being damaged due to improper space;
Further, as shown in fig. 1, the leg stretching assembly 4 further comprises a frame 41, the frame 41 is arranged at the top of the bracket 3, the frame 41 is rotatably connected with a second rotating shaft 42, a fixed rod 43 is rotatably connected to the second rotating shaft 42, one side of the fixed rod 43 away from the second rotating shaft 42 is fixedly connected with an extension rod 44, the leg stretching assembly 4 is arranged to help the body-building crowd to exercise quadriceps, and the weight of the barbell disc can be increased by arranging the extension rod 44;
In the scheme, the heights of all persons are different, and the height of the seat cushion 9 is also adjustable, as shown in fig. 4, one side, close to the presser foot bar 7, of the top of the base 1 is provided with a lifting component 8, the lifting component 8 comprises a supporting leg 81, a sliding rod 82 is slidably connected in the supporting leg 81, a round hole 83 is formed in the supporting leg 81, a plug pin 84 is inserted in the round hole 83, one side, far away from the supporting leg 81, of the sliding rod 82 is fixedly connected with the seat cushion 9, and the height of the seat cushion 9 can be adjusted by the aid of the plug pin 84 and the round hole 83 through the lifting component 8, so that the seat cushion is suitable for fitness people with different heights;
In the scheme, when the user performs leg stretching, the barbell disc on the extension rods 44 can shake or even fall off, and the body-building crowd is easy to be injured, as shown in figure 1, the two extension rods 44 are arranged, the two extension rods 44 are respectively positioned at two sides of the base 1, one side of the extension rod 44, far away from the fixed rod 43, is sleeved with the sleeve 5, and the barbell disc on the extension rod 44 can be limited and fixed through the sleeve 5, so that the barbell disc is prevented from falling off when the user performs leg stretching;
Further, as shown in FIG. 3, a supporting rod 11 is arranged on one side of the bracket 3 close to the fixing rod 43, a limiting piece 12 is fixedly connected to one side of the supporting rod 11 far away from the bracket 3, the limiting piece 12 is made of foam, one side of the limiting piece 12 far away from the supporting rod 11 is clamped with the fixing rod 43, and the fixing rod 43 is limited by arranging the supporting rod 11 and the limiting piece 12, so that the fixing rod 43 is prevented from falling off to damage an instrument;
Further, as shown in fig. 1, a backrest 10 is arranged on one side, close to the lifting assembly 8, of the top of the base 1, the inclination angle of the backrest 10 is thirty degrees, and the comfort of the body-building crowd can be improved by arranging the backrest 10 with the inclination angle of thirty degrees.
Working principle: as shown in figures 1-4, the body-building crowd sits on the seat cushion 9, backs the backrest 10, hooks the presser foot bar 7 with two legs, lifts up to complete the leg extending action through the second rotating shaft 42 and the fixed rod 43, hangs the disc on the extending rod 44 to adapt to different weights, limits and fixes the disc on the extending rod 44 through the sleeve 5, prevents the disc from falling off when the leg extends, presses the adjusting plate 24 by the adjusting component 2 and the spring 28 sleeved on the telescopic rod 27, lifts up the clamping block 25 at the bottom, then rotates the turntable 21, drives the rotating rod 29 and the fixed shaft 22 arranged on the rotating rod 29, the rotating rod 29 drives the connecting rod 6 and the presser foot bar 7 to rotate, the fixed axle 22 drives draw-in groove 23 that sets up on it and rotates, unclamp regulating plate 24 and with fixture block 25 joint in draw-in groove 23 at last, accomplish the regulation to the interval between presser foot pole 7 and the seatpad 9, so as to adapt to different crowds, avoid leading to the knee joint impaired because of the interval is improper, later through the lifting unit 8 that sets up, utilize bolt 84 and round hole 83 can adjust the height of seatpad 9, so as to adapt to the body-building crowd of different heights, through setting up bracing piece 11 and locating part 12, carry out spacing to dead lever 43, prevent that dead lever 43 drops and cause the damage to the apparatus, through setting up back 10 that inclination is thirty degrees, can improve body-building crowd's comfort level.
The foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited to the above-mentioned embodiment, but is not limited to the above-mentioned embodiment, and any simple modification, equivalent change and modification made by the technical matter of the present utility model can be further combined or replaced by the equivalent embodiment without departing from the scope of the technical solution of the present utility model.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421854778.4U CN223026634U (en) | 2024-08-02 | 2024-08-02 | Sitting type leg stretching trainer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421854778.4U CN223026634U (en) | 2024-08-02 | 2024-08-02 | Sitting type leg stretching trainer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223026634U true CN223026634U (en) | 2025-06-27 |
Family
ID=96127684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421854778.4U Active CN223026634U (en) | 2024-08-02 | 2024-08-02 | Sitting type leg stretching trainer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223026634U (en) |
-
2024
- 2024-08-02 CN CN202421854778.4U patent/CN223026634U/en active Active
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