CN216536760U

CN216536760U - Leg trainer

Info

Publication number: CN216536760U
Application number: CN202122875615.7U
Authority: CN
Inventors: 谢昱顺
Original assignee: Wuyi Huayang Industry And Trade Co ltd
Current assignee: Wuyi Huayang Industry And Trade Co ltd
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2022-05-17
Anticipated expiration: 2031-11-22

Abstract

The utility model discloses a leg trainer, which comprises two support arms which are coupled with each other by a shaft and a leg leaning part which is connected on the support arms; the support arm comprises a coupling part and an arm part; a rotating shaft penetrates through the coupling parts of the two support arms, and the two coupling parts are respectively provided with a bearing sleeved outside the rotating shaft; a shaft sleeve is arranged outside the rotating shaft, and two ends of the shaft sleeve are propped against the inner end rings of the two bearings; when the support arm is clamped, the shaft sleeve limits the bearing to move inwards so as to prevent the bearing from pushing the shaft connecting parts inwards, so that the inner end surfaces of the two shaft connecting parts are limited from being excessively extruded, and finally, the inflexible rotation process of the support arm is avoided.

Description

Leg trainer

Technical Field

The utility model relates to a portable body-building device, in particular to a leg trainer which is clamped between two legs to repeatedly open and close so as to achieve the effects of beautifying the legs and shaping the hips.

Background

Leg training ware, also called leg beautification ware, the centre gripping is opened, is closed repetitive motion between two legs to reach the effect that the buttockss was moulded to the leg beautification, widely accepted the motion fan, especially young person's liking.

The simple leg clamping exerciser with the publication number of CN2737408Y comprises a left swing structure, a right swing structure, a left leg rest plate and a right leg rest plate, wherein a rotating shaft is arranged between the left swing structure and the right swing structure; the left swing structure and the right swing structure are opened through a torsion spring and can be folded after being extruded.

When the leg clamping exerciser is used, the adjacent end surfaces of the left swing structure and the right swing structure generate friction force due to extrusion, so that the leg clamping exerciser is inflexible to rotate.

SUMMERY OF THE UTILITY MODEL

In view of the problem of inflexible rotation caused by the squeezing of the inner end surfaces of the two shaft-connecting parts of the exerciser, the utility model aims to provide a leg training aid with flexible rotation.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the leg trainer is characterized by comprising two support arms which are mutually coupled and a leg leaning part which is connected on the support arms;

the support arm comprises a coupling part and an arm part;

a rotating shaft penetrates through the coupling parts of the two support arms, and the two coupling parts are respectively provided with a bearing sleeved outside the rotating shaft;

a shaft sleeve is arranged outside the rotating shaft, and two ends of the shaft sleeve are propped against the inner end rings of the two bearings;

the shaft sleeve limits excessive extrusion of the inner end surfaces of the two shaft connecting parts.

The further preferable technical scheme of the utility model is as follows: the rotating shaft comprises a shaft body, one end of the shaft body is provided with an end head, and the other end of the shaft body is provided with a threaded section;

the end head leans against the outer side of the second bearing, the threaded section is located on the outer side of the first bearing, and the nut is screwed on the threaded section and tightly presses the first bearing.

The further preferable technical scheme of the utility model is as follows: the torsion spring comprises a ring part, a first torsion arm and a second torsion arm;

the shaft connecting part is provided with a circular wall which divides the shaft connecting part into an inner ring cavity and an outer ring cavity;

the ring part of the torsion spring is arranged in the outer ring cavity, and the rotating shaft and the shaft sleeve are positioned in the inner ring cavity;

the first torsion arm extends into the first arm portion and the second torsion arm extends into the second arm portion.

The further preferable technical scheme of the utility model is as follows: the inner sides of the first arm part or the second arm part are respectively provided with a window, and a rubber cover is arranged on the window.

The further preferable technical scheme of the utility model is as follows: the arm part comprises a front half section for inserting the torque arm and a rear half section for mounting the leg part;

the back half section is of a flat structure.

The further preferable technical scheme of the utility model is as follows: and a cover cap is arranged on the outer side of the coupling part.

The further preferable technical scheme of the utility model is as follows: the arm portion includes an outer side surface and an inner side surface;

the leg-leaning part comprises a contact part and a mounting part which are matched with the leg part, and the mounting part of the leg-leaning part is mounted on the outer side surface of the arm part through a screw;

the leg rest portion is rotatable about a screw and is fixed in a selected orientation by the screw.

The further preferable technical scheme of the utility model is as follows: one end of the screw is provided with a knob, the arm part is provided with a through hole, the mounting part is provided with a threaded hole,

the knob is positioned on the inner side of the arm part, and the screw passes through the through hole and is screwed in the threaded hole.

The further preferable technical scheme of the utility model is as follows: the mounting part is provided with a first tooth-shaped structure at the periphery of the threaded hole,

and a second tooth-shaped structure at the periphery of the through hole is arranged on the arm part, and the first tooth-shaped structure is matched with the second tooth-shaped structure.

Another subject is: the leg trainer is characterized by comprising two support arms which are mutually coupled and a leg leaning part which is connected on the support arms;

the support arm comprises a coupling part and an arm part;

the rotating shaft comprises a shaft body, one end of the shaft body is provided with an end head, and the other end of the shaft body is provided with a threaded section;

the end head leans against the outer side of the second bearing, the threaded section is positioned on the outer side of the first bearing, and the nut is screwed on the threaded section and tightly presses the first bearing;

the shaft sleeve limits excessive extrusion of the inner end surfaces of the two shaft connecting parts;

and a cover cap is arranged on the outer side of the shaft connecting part.

Compared with the prior art, the utility model has the advantages that the rotating shaft penetrates through the shaft connecting parts of the two support arms, the bearings sleeved outside the rotating shaft are respectively arranged in the two shaft connecting parts, the shaft sleeve is further sleeved outside the rotating shaft, the two ends of the shaft sleeve are respectively propped against the inner end rings of the two bearings, and when the support arms are clamped, the shaft sleeve limits the bearings to move inwards so as to prevent the bearings from mutually squeezing and pushing the shaft connecting parts, so that the excessive extrusion of the inner end surfaces of the two shaft connecting parts is limited, and finally the inflexible rotating process of the support arms is avoided.

Drawings

The present invention will be described in further detail below with reference to the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of illustrating the preferred embodiments and therefore should not be taken as limiting the scope of the utility model. Furthermore, unless specifically stated otherwise, the drawings are merely schematic representations based on the concept of a composition or construction of the object being described and may include exaggerated displays and are not necessarily drawn to scale.

FIG. 1 is a schematic view of the overall structure of a leg training device;

FIG. 2 is a schematic view of the overall structure of the leg trainer;

FIG. 3 is a schematic view of the overall structure of the leg training device;

FIG. 4 is a side partial cross-sectional view of the leg exerciser;

FIG. 5 is an exploded view of the overall structure of the leg exerciser;

FIG. 6 is a schematic view of the arm, leg rest and locking member;

FIG. 7 is a schematic view of a torsion spring mounted within a mounting arm;

FIG. 8 is a schematic view of the structure of the shaft, the shaft sleeve and the bearing;

FIG. 9 is a sectional view showing an inner structure of the coupling portion;

FIG. 10 is a first state diagram of the leg exercise apparatus;

FIG. 11 is a second state diagram of the leg exerciser;

fig. 12 is a third usage state diagram of the leg training device.

Detailed Description

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that the description is illustrative only, and is not to be construed as limiting the scope of the utility model.

It should be noted that: like reference numerals refer to like items in the following figures, and thus, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

As shown in fig. 1 to 3, the leg training device 100 includes a main body 10 and two leg rests 20; the main body 10 includes two support arms 11 which are coupled to each other and can be elastically folded and unfolded; the support arm 11 comprises an inner side surface 1a and an outer side surface 1 b; the leg rest 20 includes a contact portion 21 adapted to the leg and a mounting portion 22 located on the back of the contact portion 21. The contact portion 21 has an arc-shaped surface that conforms to the arc of the leg.

The leg rest portion 20 is attached to the outer surface 1b of the arm 11 via an attachment portion 22, and the leg rest portion 20 is rotatable about a rotation center line s passing through the arm 11. To illustrate the rotation centerline s from another angle, the connection between the mounting portion 22 and the arm 11 forms a rotation point, which extends back and forth as the rotation centerline s.

After the leg rest portion 20 is adjusted in the direction relative to the arm 11, the leg rest portion 20 is locked by the locking member 30.

The utility model has the advantages that the leg part 20 is arranged on the outer side surface 1b of the support arm 11 through the mounting part 22, and the leg part 20 can rotate around the rotation center line s passing through the support arm 11; so as to adjust the direction of the leg rest part 20 on the support arm 11, and the leg rest part is fixed by the locking piece 30 after the adjustment is finished; then, the user can adjust the direction of the leg leaning part 20 according to the training habit and the training style, and finally the required training purpose is achieved.

As shown in fig. 9 to 12, when the user uses the leg training device 100, the user can adopt different training styles according to the training habits and the target training muscle group.

In this embodiment, the rotation center line s around which the leg portion 20 rotates is preferably perpendicular to the outer side surface 1b of the arm 11. So that the user can easily identify the initial position of the legrest portion 20 relative to the arm 11 and thereby facilitate routine maintenance of the exercise apparatus.

Specifically, the mounting portion 22 of the leg portion 20 includes a mounting surface 2a, the mounting surface 2a being opposed to the outer side surface 1b of the arm 11; the mounting surface 2a is provided with a first tooth-shaped structure 2b, and the outer side surface 1b of the support arm 11 is provided with a second tooth-shaped structure 1c meshed with the first tooth-shaped structure 2 b. When the leg portion 20 rotates relative to the arm 11, the first tooth structure 2b and the second tooth structure 1c rotate in mesh.

As shown in fig. 5 and 6, the locking member 30 is a knob p, and the knob p includes a screw p1 and a hand-tightening portion p 2. For the installation and fixation mode of the knob p, the support arm 11 is provided with a through hole 1d penetrating through the middle of the second tooth-shaped structure 1 c; the mounting portion 22 is provided with a threaded hole 2c in the middle of the first tooth formation 2 b.

When mounted, screw p1 of knob p is screwed into threaded hole 2c through hole 1d, thereby locking leg rest portion 20 to arm 11.

And preferably, the threaded hole 2c is a blind hole, that is, one side of the threaded hole 2c is in a closed state, so as to ensure the aesthetic property of the outer side surface of the leg portion 20.

Preferably, the locking member 30 may also be a connection pin.

Further, for the structure that the two support arms 11 can be clamped relatively, a rotating shaft 40 and a torsion spring 50 are arranged between the two support arms 11; torsion spring 50 includes a ring portion 53, a first torsion arm 51 and a second torsion arm 52.

As shown in fig. 7, the arm 11 includes a receiving ring portion 53 and a coupling portion 1e and an arm portion 1f of the rotary shaft 40. More specifically, the arm portion 1f includes a front-stage portion f1 for accommodating the torsion arm and a rear-stage portion f2 for attaching the leg portion 20, and the attachment portion 22 of the leg portion 20 is connected to the rear-stage portion f 2. The rear end portion f2 of the arm portion 1f is formed in a flat shape, and the arm portion 1f is made thinner.

The shaft-coupling portion 1e of the arm 11 is provided with a circular wall r so as to divide the shaft-coupling portion 1e into an inner annular chamber e1 and an outer annular chamber e 2. The ring portion 53 of the torsion spring 50 is disposed in the outer ring cavity e2, the first torsion arm 51 extends into the first arm portion 11a of the arm 11, and the second torsion arm 52 extends into the second arm portion 11b of the arm 11.

Preferably, a window g is provided on the inner side of each of the first arm 11a and the second arm 11b, and a rubber cover g1 is provided on the window g. Thereby facilitating the loading of the torque arm and making the front section of the arm portion 1f thinner.

In order to make the overall appearance of the leg training device 100 more beautiful and tidy, a cap 70 is provided on the outer side of the coupling portion 1e of the arm 11.

In actual use, the user's thighs are attached to the contact portions 21 of the leg rest portions 20, and then the legs are forced toward each other to overcome the elastic force of the torsion spring 50, thereby clamping the two arm portions 1 f. In the conventional leg clamping exerciser, the inner end surfaces of two shaft connecting parts of the support arm are mutually extruded in the leg clamping process, so that the problem of inflexible rotation is caused. In view of the above technical problems, the technical solution of the present invention is as follows:

as shown in fig. 4, 5, 7 and 9, a rotating shaft 40 is inserted between the shaft connecting portions 1e of the two support arms 11, the two shaft connecting portions 1e are respectively provided with a bearing a5 sleeved outside the rotating shaft 40, a shaft sleeve a6 is arranged outside the rotating shaft 40, the rotating shaft 40 and the shaft sleeve a6 are installed in an inner ring cavity e1 of the shaft connecting portion 1e, and two ends of the shaft sleeve a6 are abutted against inner end rings a1 of two bearings a 5; the boss a5 restricts excessive pressing of the inner end faces of the two coupling portions 1 e.

When the arm 11 is clamped, the sleeve a6 restricts the inward movement of the bearing a5 to prevent the bearing a5 from pushing the shaft connecting portions 1e inward, thereby restricting the inner end surfaces of the two shaft connecting portions 1e from being excessively pressed, and eventually preventing the arm 11 from being inflexible in rotation.

Specifically, the rotating shaft 40 includes a shaft body 41, one end of the shaft body 41 is provided with a head 42, and the other end of the shaft body 41 is provided with a threaded section 43; the head 42 rests on the outside of the second bearing 02, the threaded section 43 is located on the outside of the first bearing 01, and the nut a2 is screwed onto the threaded section 43 and presses against the outside of the first bearing 01.

The present invention has been described above with reference to leg trainers, and the principles and embodiments of the present invention have been described herein with reference to specific examples, which are provided only to assist in understanding the present invention and the core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. The leg trainer is characterized by comprising two support arms which are mutually coupled and a leg leaning part which is connected on the support arms;

the support arm comprises a coupling part and an arm part;

2. The leg exerciser of claim 1, wherein the shaft comprises a shaft body having a head at one end and a threaded section at the other end;

3. The leg exerciser of claim 1 wherein the torsion spring includes a loop portion, a first torsion arm and a second torsion arm;

4. The leg training aid of claim 3 wherein the first arm or the second arm is provided with a window on the inside thereof, said window being provided with a rubber cover.

5. The leg exerciser of claim 3, wherein the arm portion includes a front half into which the torque arm is inserted and a rear half mounted against the leg portion;

the back half section is of a flat structure.

6. The leg training aid as claimed in claim 1, wherein a cap is provided on the outer side of the coupling portion.

7. The leg exerciser of claim 1, wherein the arm portion includes an outer side and an inner side;

8. The leg exerciser of claim 7, wherein the screw includes a knob at one end, a through hole in the arm, a threaded hole in the mounting portion,

the knob is positioned on the inner side of the arm part, and the screw penetrates through the through hole and is screwed in the threaded hole.

9. The leg exerciser of claim 8 wherein the mounting portion defines a first tooth formation about the periphery of the threaded hole,

10. The leg trainer is characterized by comprising two support arms which are mutually coupled and a leg leaning part which is connected on the support arms;

the support arm comprises a coupling part and an arm part;

the shaft sleeve limits excessive extrusion of the inner end surfaces of the two shaft connection parts;

and a cover cap is arranged on the outer side of the shaft connecting part.