CN114191784A

CN114191784A - Leg exerciser

Info

Publication number: CN114191784A
Application number: CN202210044950.9A
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: 2022-01-14
Filing date: 2022-01-14
Publication date: 2022-03-18

Abstract

The invention discloses a leg exerciser, which comprises a main body and two leg rests; the leg leaning part comprises a support arm and a leg leaning part arranged on the support arm; the main body comprises a driving rod, a spring and a limiting part; the upper end of the driving rod is connected with the support arm through a connecting rod component, and the spring is sleeved outside the driving rod; the limiting part is connected to the lower end of the driving rod and props against the lower end of the spring; the upper end of the spring is limited and positioned; in the initial state, the two leg parts are opened, and the spring is in the stretching state; the two leg rest parts are clamped oppositely, the rotating support arm pulls the driving rod upwards through the connecting rod assembly, and then the lower end of the spring is extruded upwards by the limiting part, so that the spring is in a compressed state; the tension of the leg exerciser is provided by the way that the driving rod moves up and down to further compress the common spring, and the leg exerciser is relatively simple in structure and high in stability.

Description

Leg exerciser

Technical Field

The invention relates to a portable fitness device, in particular to a leg exerciser 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 exerciser, also called leg beautifying device, is clamped between two legs to open and close repeatedly so as to achieve the effect of shaping buttocks of the leg beautifying, and is widely popular with sports enthusiasts, especially young people.

The simple leg-clamping exerciser disclosed as CN2737408Y comprises a left-swinging structure, a right-swinging structure, a left leg-rest plate and a right leg-rest plate, wherein the left-swinging structure and the right-swinging structure are opened through a torsion spring and can be mutually folded after being extruded.

When the leg-pulling device is used, the two legs of an exerciser are clamped on the left leg-backing plate and the right leg-backing plate, and the tension of the torsion spring on the left swinging structure and the right swinging structure is overcome when the two legs are opened and closed.

The distance between the sliding shaft and the through hole is shortened through the knob, the adjusting seat rotates anticlockwise by taking the fulcrum as a center, the included angle between the left end and the right end of the torsion spring is reduced, the preset torsion resistance of the torsion spring is increased, and the acting force of the leg clamp is increased.

The torsion force adjuster arranged on the leg-clamping exerciser is used for adjusting the force of the torsion spring, so that the structure of the product is complex and the stability is reduced.

Disclosure of Invention

Based on the above-mentioned structural problems caused by the torsion spring of the leg exercise device, the present invention provides a novel leg exercise device, which provides the tension of the leg exercise device by compressing the common spring through the driving rod, and the leg of the exerciser is clamped to overcome the tension.

The technical scheme adopted by the invention for solving the technical problems is as follows: a leg exerciser comprising a main body and two leg rests; the leg leaning part comprises a support arm and a leg leaning part arranged on the support arm;

the main body comprises a driving rod, a spring and a limiting part; the upper end of the driving rod is connected with the support arm through a connecting rod assembly, and the spring is sleeved outside the driving rod;

the limiting part is connected to the lower end of the driving rod and props against the lower end of the spring; the upper end of the spring is limited in location;

in the initial state, the two leg rest parts are opened, and the spring is in an extension state;

the two leg portions are clamped oppositely, the rotating support arm pulls the driving rod upwards through the connecting rod assembly, and then the lower end of the spring is pressed upwards by the limiting portion, so that the spring is in a compressed state.

The further preferable technical scheme of the invention is as follows: the driving rod is a screw rod, and the limiting part is an adjusting knob screwed at the lower end of the screw rod;

the position of the adjustment knob on the screw is rotated to adjust the tension of the spring in the initial position.

The further preferable technical scheme of the invention is as follows: the front end of the adjusting knob is provided with a spacer bush, the spacer bush comprises a barrel body part sleeved on the driving rod and a top ring, and the lower end of the spring is abutted to the top ring.

The further preferable technical scheme of the invention is as follows: the main body further comprises a clip-shaped base, the clip-shaped base comprises an upper cross beam, a lower cross beam and two side beams, and the two support arms are respectively coupled to the side beams in a shaft manner;

the upper end of the spring is propped against the lower side surface of the lower cross beam;

the lower cross beam is provided with a guide hole;

the upper end of the driving rod is placed into the clip-shaped area of the clip-shaped base through the guide hole, and the driving rod moves up and down along the guide hole.

The further preferable technical scheme of the invention is as follows: the connecting rod assembly comprises a cross rod and two diagonal rods, wherein the cross rod is fixed at the upper end of the driving rod and comprises a through hole in the middle for the driving rod to pass through and rod heads on two sides; the cross bar is positioned in the clip area of the clip base,

the upper end of the diagonal draw bar is in shaft joint with the end part of the support arm through a first rotating shaft, and the lower end of the diagonal draw bar is in shaft joint with the rod head of the cross bar through a second rotating shaft.

The further preferable technical scheme of the invention is as follows: the main part still include the casing, the type base is fixed in the casing, the lower extreme of actuating lever stretches out downwards the casing, the restriction position is in outside the casing.

The further preferable technical scheme of the invention is as follows: the support arm comprises an arm part which is arranged close to the leg part and a shaft connecting arm which is injected in the arm part, and the shaft connecting arm is connected with the connecting rod assembly; the leg rest part is detachably mounted on the arm part through a knob.

Another subject is: a leg exerciser comprising a main body and two leg rests; the leg leaning part comprises a support arm and a leg leaning part arranged on the support arm;

the main body comprises a screw rod, a spring and an adjusting knob; the upper end of each screw is connected with the support arm through a connecting rod assembly, and the spring is sleeved outside the screw;

the adjusting knob is screwed on the lower end of the screw rod and props against the lower end of the spring; the upper end of the spring is limited in location;

the two leg rest parts are clamped oppositely, the rotating support arm pulls the screw rod upwards through the connecting rod assembly, and then the lower end of the spring is extruded by the knob, so that the spring is in a compressed state;

the tension of the spring in the initial position can be adjusted by rotating the position of the knob on the screw.

The further preferable technical scheme of the invention is as follows: the front end of the knob is provided with a spacer bush, the spacer bush comprises a barrel body part sleeved on the driving rod and a top ring, and the lower end of the spring is abutted to the top ring.

The further preferable technical scheme of the invention is as follows: the main body also comprises a shell and a clip-shaped base,

the clip-shaped base is fixed in the shell;

the clip-shaped base comprises an upper cross beam, a lower cross beam and two side beams, and two support arms are respectively coupled to the side beams in a shaft manner;

the lower cross beam is provided with a guide hole;

the upper end of the screw rod is placed into the clip-shaped area of the clip-shaped base through the guide hole, and the screw rod can move up and down along the guide hole;

the lower end of the screw rod extends out of the shell downwards, and the knob is located outside the shell.

The further preferable technical scheme of the invention is as follows: the connecting rod assembly comprises a cross rod and two diagonal rods, wherein the cross rod is fixed at the upper end of the screw rod and comprises a through hole in the middle for the screw rod to pass through and rod heads on two sides; the cross bar is positioned in the clip area of the clip base,

The further preferable technical scheme of the invention is as follows: the housing includes a front housing and a rear housing, which are connected by screws.

Compared with the prior art, the invention has the advantages that in the initial state, the two leg parts are opened, and the spring is in the extension state; the two leg parts are clamped oppositely, the rotating support arm pulls the driving rod upwards through the connecting rod assembly, and then the lower end of the spring is extruded by the limiting part, so that the spring is in a compressed state.

The tension of the leg exerciser is provided by the way that the driving rod compresses the common spring, and the leg exerciser is relatively simple in structure and high in stability.

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 invention. Furthermore, unless specifically stated otherwise, the drawings are merely schematic representations based on conceptual representations of elements or structures depicted and may contain exaggerated displays and are not necessarily drawn to scale.

Fig. 1 is a schematic view showing a deployed state of a leg exerciser;

FIG. 2 is a schematic view showing a clamped state of the leg exerciser;

FIG. 3 is a first exploded view of the leg exerciser;

FIG. 4 is a second exploded view of the leg exerciser;

FIG. 5 is a disassembled view of the leg rest structure in the embodiment;

FIG. 6 is a first diagram illustrating the structure of the arm driving spring;

FIG. 7 is a second schematic structural view of the arm driving spring;

FIG. 8 is a disassembled view showing the components of the main body of the embodiment;

FIG. 9 is a schematic view of the overall structure of the base in this embodiment;

fig. 10 is a schematic structural view of the connecting rod assembly in the present embodiment.

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 descriptions are illustrative only, exemplary, and should not be construed as limiting the scope of the invention.

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 and 2, the leg exerciser 100 includes a main body 10 and two leg rests 20 mounted on both sides of the main body 10. The leg rest portion 20 includes an arm 21 and a leg rest portion 22 mounted on the arm 21. The outer wall of the leg rest part 22 is provided with an arc-shaped surface, when in use, the leg of a user is attached to the arc-shaped surface and the two leg rest parts 20 are oppositely clamped, so that the purpose of leg muscle training is realized. How the leg rest portion 20 cooperates with the linkage mechanism in the main body 10 to achieve reciprocal clamping and adjust the clamping force will be described in detail below, specifically:

as shown in fig. 3 and 4, the main body 10 includes a drive lever 11, a spring 12, and a restricting portion 13. The upper end of the driving rod 11 is connected with the support arm 21 through a connecting rod assembly 30, and the support arm 21 rotates to drive the connecting rod assembly 30 to move; and the spring 12 is sleeved outside the driving rod 11. The spring is different from a traditional torsion spring and is a cylindrical spiral spring, namely a common spring.

Specifically, the restricting portion 13 is connected to the lower end of the drive lever 11 and abuts against the lower end of the spring 12; the upper end of the spring 12 is restrained in position. That is, the upper and lower ends of the spring 12 are defined, and the spring 12 can be compressed or rebounded when the driving lever 11 is moved up and down.

In actual use, as shown in figures 1, 2 and 6, 7, in the initial condition, the two leg portions 22 are spread apart and the spring 12 is in an extended condition. When the user clamps the two leg portions 22 in the opposite direction, the arm 21 rotates and further pulls the driving rod 11 upward through the link assembly 30, the upward moving driving rod 11 drives the limiting portion 13 at the lower end thereof to move upward, so that the lower end of the spring 12 is pressed upward by the limiting portion 13, and the spring 12 is in a compressed state. When the external force applied to the leg rest portion 22 by the legs is removed, the leg rest portion 22 returns to the original state.

The invention has the advantages that in the initial state, the two leg rest parts 22 are opened, and the spring 12 is in an extension state; the two leg portions 22 are clamped oppositely, and the rotating arm 21 pulls the driving rod upwards through the connecting rod assembly 30, so that the lower end of the spring 12 is pressed by the limiting portion, and the spring 12 is in a compressed state.

The tension of the leg exerciser is provided by the way that the driving rod 11 moves up and down to further compress the general spring 12, and the structure is relatively simple and the stability is high.

As shown in fig. 8, the driving rod 11 is a screw f, and the restricting portion 13 is an adjusting knob b screwed to the lower end of the screw f; when the device is used, the position of the adjusting knob b on the screw f is rotated to adjust the tension of the spring 12 at the initial position, and then the tension is matched with the clamping force required by a user to train, so that the training strength required by the user is met. The outer surface of the adjusting knob b is provided with a thread structure, so that the friction force between the hand of a user and the adjusting knob b is further increased, and the adjusting knob b is convenient to rotate.

It should be noted that, in the present embodiment, the front end of the adjusting knob b is provided with a spacer c, the spacer c includes a barrel component c1 and a top ring c2, which are sleeved on the driving rod 11, and the lower end of the spring 12 is pressed against the upper wall surface of the top ring c 2. That is, the upper wall surface of the top ring c2 provides a limiting surface for the compression of the spring 12. The manufacturer may also provide the limiting surface required for compression of the spring 12 by other shapes or other configurations.

Further, the spacer c and the adjusting knob b are integrally injection-molded, or may be of a separate structure.

The main body 10 of the leg exerciser 100 further includes a clip base 50, the clip base 50 includes an upper cross member 51, a lower cross member 52 and two side members 53, and the two arms 21 are respectively pivoted to the side members 53. The pivot ends of the arms 21 and the side members 53 are rotatable relative to each other.

The upper end of the spring 12 rests against the underside of the lower cross member 52, i.e. the underside of the lower cross member 52 provides a limiting surface for the position of the upper end of the spring 12. The lower beam 52 is provided with a guide hole 54, the upper end of the driving rod 11 is inserted into the clip-shaped area h of the clip-shaped base 50 through the guide hole 54, and the driving rod 11 can move up and down along the guide hole 54.

Further, the upper end of the driving lever 11 has a rest portion defined on the upper side of the lower cross member 52 after the driving lever 11 is mounted to the clip base 50, so as to prevent the driving lever 11 from being separated from the guide hole 54 when moving downward.

It should be noted that the connecting rod assembly 30 includes a cross rod 32 and two diagonal rods 31 fixed to the upper end of the driving rod 11.

Wherein, the cross bar 32 comprises a through hole 01 for the driving rod 11 to pass through and two side rod heads 02; the cross bar 32 is located in the clip area h of the clip base 50, i.e., the cross bar 32 is mounted above the lower cross member 52. When the driving rod 11 in this embodiment is installed, it passes through the cross bar 32 and the guide hole 54 in this order, and after the installation, the resting portion of the upper end of the driving rod 11 is defined above the cross bar 32.

Further, the upper end of the diagonal member 31 is coupled to the end of the arm 21 via a first rotation shaft v1, and the lower end of the diagonal member 31 is coupled to the head 02 of the crossbar 32 via a second rotation shaft v 2.

In the actual use process, the user places the leg training device 100 between two legs, so that two sides of the thigh are attached to the arc-shaped surface close to the front side of the leg 22, the two legs clamp the leg 22 in opposite directions, the rotating support arm 21 drives the diagonal draw bar 31 of the connecting assembly 30 to rotate, and the driving rod 11 is further pulled up through the cross bar 32. The driving rod 11 moving upward drives the spacer c at the lower end thereof to compress the spring 12 upward, and the user can exercise the leg muscles by overcoming the elastic force of the spring 12 itself. When the user relaxes the muscles to spread the legs, the resilience of the compressed spring 12 further drives the linkage assembly 30, which in turn drives the legrest portion 22 to spread.

As shown in fig. 2, the main body 10 of the leg exerciser 100 further includes a housing 101, and the clip-shaped base 50 is fixed in the housing 101, so as to protect the components and make the overall appearance of the leg exerciser 100 more beautiful and tidy. The lower end of the driving lever 11 protrudes downward out of the housing 101, and the restricting portion 13 is located outside the housing 101 so that the user can rotate the restricting portion 13.

Preferably, the arm 21 includes an arm 23 mounted against the leg 22 and a coupling arm 24 molded into the arm 23, the coupling arm 24 being connected to the linkage assembly 30; the leg rest portion 22 is detachably attached to the arm portion 23 by a knob p.

In this embodiment, the rotating arm 21 moves up and down through the link assembly 30 to drive the driving rod 11, and further the tension required for leg training is provided by compressing the spring 12, on one hand, the structure of the above technical scheme is relatively simple, on the other hand, only the spring 12 of a common structure needs to be adopted, the compression direction and the resilience direction are consistent with the running direction of the driving rod 11, and the overall stability of the leg exerciser 100 is relatively high.

The present invention has been described above with reference to leg exercisers, and the principles and embodiments of the present invention are described herein with reference to specific examples, which are intended to serve only to facilitate an understanding of 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. A leg exerciser, characterized by comprising a main body and two leg rests; the leg leaning part comprises a support arm and a leg leaning part arranged on the support arm;

2. The leg exerciser of claim 1, wherein the drive rod is a screw, and the restriction member is an adjustment knob screwed to a lower end of the screw;

3. The leg exerciser of claim 2 wherein the adjustment knob has a spacer at a front end thereof, the spacer including a barrel member fitted over the drive rod and a top ring, the lower end of the spring bearing against the top ring.

4. The leg exerciser of claim 1, wherein the body further comprises a clip base including an upper cross member, a lower cross member and two side members, the two arms being pivotally coupled to the side members, respectively;

the lower cross beam is provided with a guide hole;

5. The leg exerciser of claim 4, wherein the linkage assembly includes a cross bar fixed to an upper end of the driving rod and two diagonal bars, the cross bar including a through hole in the middle for the driving rod to pass through and two side bar heads; the cross bar is positioned in the clip area of the clip base,

6. The leg exerciser of claim 3 wherein said body further includes a housing, said clip base being secured within said housing, said drive rod having a lower end extending downwardly from said housing, said restraint being located outside of said housing.

7. The leg exerciser of claim 1, wherein the arm includes an arm portion mounted against the leg portion and an articulated arm molded into the arm portion, the articulated arm being connected to the linkage assembly; the leg rest part is detachably mounted on the arm part through a knob.

8. A leg exerciser, characterized by comprising a main body and two leg rests; the leg leaning part comprises a support arm and a leg leaning part arranged on the support arm;

the adjusting knob is screwed on the lower end of the screw rod and props against the lower end of the spring; the upper end of the spring is limited and positioned by the clip-shaped base;

9. The leg exerciser of claim 8 wherein the knob is provided at a forward end thereof with a spacer, the spacer including a barrel member fitted over the drive rod and a top ring, the lower end of the spring bearing against the top ring.

10. The leg exerciser of claim 8, wherein the body further includes a housing,

the clip-shaped base is fixed in the shell;

the lower cross beam is provided with a guide hole;

11. The leg exerciser of claim 8, wherein the linkage assembly includes a cross bar fixed to an upper end of the screw, the cross bar including a central through hole for the screw to pass through and two side bar heads; the cross bar is positioned in the clip area of the clip base,

12. The leg exerciser of claim 8 wherein said housing includes a front housing and a rear housing, said front and rear housings being connected by screws.