CN216909068U - leg exerciser - Google Patents

Abstract

The utility model 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 utility model relates to a portable fitness device, in particular to a leg exerciser, which is clamped between two legs to perform repeated actions of opening and closing, so as to achieve the effect of beautifying the legs and shaping the buttocks.

technical background

The leg exerciser, also known as the leg beauty device, is clamped between the legs to perform repeated actions of opening and closing to achieve the effect of beautiful legs and buttocks. It is widely loved by sports enthusiasts, especially young people.

The simple leg clipping exercise device with the publication number of CN2737408Y includes a left swing structure, a right swing structure, a left leg plate and a right leg plate. close up.

When in use, the exerciser's legs are clamped on the left and right leg boards, and the opening and closing of the legs needs to overcome the tension of the torsion spring on the left and right swing structures.

It narrows the distance between the sliding shaft and the perforation through the knob, so that the adjusting seat rotates counterclockwise around the fulcrum, and the angle between the left end and the right end of the torsion spring becomes smaller, which increases the preset torsional resistance of the torsion spring and increases the clamping force. Leg effort.

The torsion resistance adjuster configured on the leg clip exerciser is used to adjust the strength of the torsion spring, which leads to the complex structure of the product and the reduced stability.

Utility model content

Based on the structural problems caused by the torsion spring of the above-mentioned leg-clamping exerciser, the technical problem to be solved by the present invention is to provide a new type of leg exerciser, which provides the tension of the leg exerciser by compressing a common spring by a driving rod. , the exerciser's legs are clamped to overcome the tension.

The technical scheme adopted by the present invention to solve the above technical problems is as follows: a leg exerciser includes a main body and two leg rests; the leg rests include a support arm and a leg rest installed on the support arm;

The main body includes a driving rod, a spring and a restricting part; the upper end of the driving rod is connected with the support arm through a link assembly, and the spring is sleeved outside the driving rod;

The restricting portion is connected to the lower end of the driving rod and bears against the lower end of the spring; the upper end of the spring is restricted and positioned;

In the initial state, the two legs are open, and the spring is in an extended state;

The two leg portions are clamped toward each other, and the rotating support arm pulls the driving rod upward through the link assembly, so that the lower end of the spring is pressed upward by the restricting portion, so that the spring is in a compressed state.

A further preferred technical solution of the present invention is: the driving rod is a screw rod, and the restricting part is an adjusting knob screwed on the lower end of the screw rod;

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

A further preferred technical solution of the present invention is as follows: the front end of the adjustment knob is provided with a spacer, the spacer includes a cylindrical body part and a top ring sleeved on the driving rod, and the lower end of the spring is abutted on the top ring .

A further preferred technical solution of the present invention is as follows: the main body further includes a return-shaped base, and the return-shaped base includes an upper beam, a lower beam and two side beams, and the two support arms are respectively axially connected to the side beams. on the beam;

The upper end of the spring is abutted on the lower side of the lower beam;

The lower beam is provided with a guide hole;

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

A further preferred technical solution of the present invention is as follows: the connecting rod assembly includes a cross rod fixed on the upper end of the driving rod and two oblique pull rods, and the cross rod includes a middle through hole for the driving rod to pass through and rod heads on both sides ; the cross bar is located in the return area of the return base,

The upper end of the oblique stay rod is axially connected with the end of the support arm through the first rotating shaft, and the lower end of the oblique stay rod is axially connected with the rod head of the cross rod through the second rotating shaft.

A further preferred technical solution of the present invention is as follows: the main body further comprises a casing, the return base is fixed in the casing, the lower end of the driving rod protrudes downward from the casing, and the limiting The part is outside the casing.

A further preferred technical solution of the present invention is as follows: the support arm includes an arm part mounted on the leg part and a shaft connection arm injected into the arm part, the shaft connection arm is connected with the connecting rod assembly; The arm is detachably mounted on the arm through a knob.

Another subject: a leg exerciser, comprising a main body and two leg rests; the leg rests include a support arm and a leg rest mounted on the support arm;

The main body includes a screw rod, a spring and an adjustment knob; the upper ends of the screw rods are each connected with the support arms through a connecting rod assembly, and the springs are sleeved outside the screw rods;

The adjusting knob is screwed on the lower end of the screw rod and bears against the lower end of the spring; the upper end of the spring is limited and positioned;

In the initial state, the two legs are open, and the spring is in an extended state;

Clamp the two legs against each other, and the rotating support arm pulls the screw rod upward through the link assembly, so that the lower end of the spring is squeezed by the knob, so that the spring is in a compressed state;

Rotating the position of the knob on the screw can adjust the tension of the spring in the initial position.

A further preferred technical solution of the present invention is that: the front end of the knob is provided with a spacer sleeve, the spacer sleeve includes a cylindrical body part and a top ring sleeved on the driving rod, and the lower end of the spring is abutted on the top ring.

A further preferred technical solution of the present invention is: the main body further comprises a shell and a return-type base,

the return type base is fixed in the casing;

The return-shaped base includes an upper beam, a lower beam and two side beams, and the two support arms are respectively axially connected to the side beams;

The upper end of the spring is abutted on the lower side of the lower beam;

The lower beam is provided with a guide hole;

The upper end of the screw rod is placed in the loop-shaped area of the loop-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 protrudes downward from the casing, and the knob is located outside the casing.

A further preferred technical solution of the present invention is as follows: the connecting rod assembly includes a cross bar fixed on the upper end of the screw rod and two oblique pull rods, and the cross rod includes a middle through hole for the screw rod to pass through and rod heads on both sides; The cross bar is located in the return area of the return base,

The upper end of the oblique stay rod is axially connected with the end of the support arm through the first rotating shaft, and the lower end of the oblique stay rod is axially connected with the rod head of the cross rod through the second rotating shaft.

A further preferred technical solution of the present invention is that: the casing includes a front casing and a rear casing, and the front casing and the rear casing are connected by screws.

Compared with the prior art, the advantage of the utility model is that in the initial state, the two leg rests are opened, and the springs are in an extended state; the two leg rests are clamped toward each other, and the rotating support arm is pulled upward by the connecting rod assembly to drive. rod, and then the lower end of the spring is pressed by the restricting part, so that the spring is in a compressed state.

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

Description of drawings

The present invention will be described in further detail below in conjunction with the accompanying drawings and preferred embodiments, but those skilled in the art will appreciate that these drawings are only drawn for the purpose of explaining the preferred embodiments and should not therefore be used as a Limitation of the scope of the present invention. Furthermore, unless otherwise indicated, the drawings are merely schematic representations of the composition or construction of the described objects and may contain exaggerated representations and are not necessarily drawn to scale.

Fig. 1 is the schematic diagram of the unfolded state of the leg exerciser;

Fig. 2 is the clip state schematic diagram of the leg exerciser;

Fig. 3 is the structural dismantling schematic diagram 1 of the leg exerciser;

Fig. 4 is the structural dismantling schematic diagram II of the leg exerciser;

Fig. 5 is the structural dismantling schematic diagram of the leg in the embodiment;

Fig. 6 is the structure schematic diagram 1 of the arm drive spring;

Fig. 7 is the structural schematic diagram 2 of the arm drive spring;

Fig. 8 is the structural disassembly schematic diagram of each part of the main body of the embodiment;

9 is a schematic diagram of the overall structure of the base in this embodiment;

FIG. 10 is a schematic structural diagram of the connecting rod assembly in this embodiment.

Detailed ways

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are only descriptive, exemplary, and should not be construed as limiting the scope of protection of the present invention.

It should be noted that like numerals refer to like items in the following figures, so 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 FIG. 2 , the leg exerciser 100 includes a main body 10 and two leg rests 20 installed on both sides of the main body 10 . The leg rest 20 includes a support arm 21 and a leg rest 22 mounted on the support arm 21 . The outer wall of the leg rest 22 has an arc surface. When in use, the user's legs are attached to the arc surface and the two leg rests 20 are clamped toward each other, so as to achieve the purpose of training the leg muscles. How the legs 20 cooperate with the linkage mechanism in the main body 10 to realize the reciprocating clamping and adjust the clamping force will be described in detail below, specifically:

As shown in FIGS. 3 and 4 , the main body 10 includes a drive rod 11 , a spring 12 and a restricting portion 13 . The upper end of the drive rod 11 is connected to the support arm 21 through a link assembly 30 , and the support arm 21 rotates to drive the link assembly 30 to move; Different from the traditional torsion spring, the spring is a cylindrical coil spring, which is an ordinary spring.

Specifically, the restricting portion 13 is connected to the lower end of the driving rod 11 and bears against the lower end of the spring 12; the upper end of the spring 12 is restricted and positioned. That is, the upper and lower ends of the spring 12 are limited, and when the driving rod 11 moves up and down, the spring 12 can be compressed or rebounded.

In actual use, as shown in Figure 1, Figure 2, Figure 6, Figure 7, in the initial state, the two leg rests 22 are opened, and the spring 12 is in an extended state. When the user clamps the two leg rests 22 toward each other, the support arm 21 rotates and further pulls the driving rod 11 upward through the link assembly 30 , and the upwardly moving driving rod 11 drives the restricting portion 13 at its lower end to move upward, thereby causing the spring 12 to move upward. The lower end of the spring 12 is pressed upward by the restricting portion 13, so that the spring 12 is in a compressed state. When the external force exerted by the two legs on the leg rest 22 is removed, the leg rest 22 returns to the initial state.

The advantage of the present utility model is that in the initial state, the two leg rests 22 are opened, and the spring 12 is in an extended state; the two leg rests 22 are clamped toward each other, and the rotating support arm 21 pulls the driving rod upward through the link assembly 30, Further, the lower end of the spring 12 is pressed by the restricting portion, so that the spring 12 is in a compressed state.

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

As shown in FIG. 8 , the driving rod 11 is the screw f, and the restricting part 13 is the adjusting knob b screwed on the lower end of the screw f; when in use, rotate the position of the adjusting knob b on the screw f to adjust the spring 12 in the initial position. The tension is then matched with the clamping strength of the training required by the user to meet the training intensity that the user wants to achieve. A threaded structure is arranged on the outer surface of the adjustment knob b, so as to further increase the friction between the user's hand and the adjustment knob b and facilitate the rotation.

It should be further mentioned that the front end of the adjustment knob b in this embodiment is provided with a spacer c, the spacer c includes a cylindrical part c1 and a top ring c2 sleeved on the driving rod 11, and the lower end of the spring 12 is pressed against the top ring c2 on the upper wall. That is, the upper wall surface of the top ring c2 provides a limiting surface for the compression of the spring 12 . Manufacturers can also provide the limiting surface required for the compression of the spring 12 by other shapes or other structures.

It should be further noted that, the spacer c and the adjustment knob b are integrally injection-molded, and may also be a separate structure.

The main body 10 of the leg exerciser 100 further includes a reversible base 50 . The reversible base 50 includes an upper beam 51 , a lower beam 52 and two side beams 53 , and the two support arms 21 are respectively axially connected to the side beams 53 . The shaft connection ends of the support arm 21 and the side beam 53 can rotate relative to each other.

The upper end of the spring 12 abuts on the lower side of the lower beam 52 , that is, the lower side of the lower beam 52 provides a limit surface for the upper end position of the spring 12 . The lower beam 52 is provided with a guide hole 54 , the upper end of the drive rod 11 is inserted into the return region h of the return base 50 through the guide hole 54 , and the drive rod 11 can move up and down along the guide hole 54 .

Further, the upper end of the driving rod 11 has a resting part. After the installation of the driving rod 11 and the return base 50 is completed, the resting part is defined on the upper side of the lower beam 52 to prevent the driving rod 11 from moving downward from the guide hole 54 middle detachment.

In addition, it should be noted that the connecting rod assembly 30 includes a transverse rod 32 fixed on the upper end of the driving rod 11 and two oblique pull rods 31 .

The cross bar 32 includes a central through hole 01 for the driving rod 11 to pass through and the rod heads 02 on both sides; the cross bar 32 is located in the return area h of the return base 50, that is, the cross bar 32 is located in the lower cross beam after installation. 52 above. During installation, the driving rod 11 in this embodiment passes through the cross rod 32 and the guide hole 54 in sequence. After installation, the resting portion of the upper end of the driving rod 11 is defined above the cross rod 32 .

Further, the upper end of the oblique stay rod 31 is axially connected to the end of the support arm 21 through the first rotation axis v1, and the lower end of the oblique stay rod 31 is axially connected to the rod head 02 of the cross bar 32 through the second rotation axis v2.

In the actual use process, the user places the leg trainer 100 between the two legs, so that the two sides of the thigh are in contact with the curved surface on the front side of the leg 22, the legs are clamped against the leg 22, and the rotating support The arm 21 drives the inclined rod 31 of the connecting assembly 30 to rotate, and further pulls up the driving rod 11 through the cross rod 32 . The upwardly moving driving rod 11 drives the spacer c at its lower end to compress the spring 12 upward, and the user can achieve the effect of training the leg muscles by overcoming the elastic force of the spring 12 itself. When the user relaxes the muscles to expand the legs, the resilient force of the compressed spring 12 further drives the link assembly 30 , which in turn drives the legs 22 to expand.

As shown in FIG. 2 , the main body 10 of the leg exerciser 100 further includes a casing 101 , and the return base 50 is fixed in the casing 101 , which protects the components on the one hand, and also enables leg training on the other hand. The overall appearance of the device 100 is more beautiful and neat. The lower end of the driving rod 11 protrudes downward from the housing 101 , and the restricting portion 13 is located outside the housing 101 to facilitate the user to rotate the restricting portion 13 .

Preferably, the support arm 21 includes an arm portion 23 mounted on the leg portion 22 and a pivot arm 24 injected into the arm portion 23. The pivot arm 24 is connected to the link assembly 30; the leg portion 22 is detachable through the knob p Attached to the arm portion 23 .

In this embodiment, the rotating support arm 21 drives the driving rod 11 to move up and down through the link assembly 30, and further compresses the spring 12 to provide the tension required for leg training. On the one hand, the structure of the above technical solution is relatively simple, On the other hand, only the spring 12 with a common structure is used, and the compression direction and the direction of the rebound force are consistent with the running direction of the driving rod 11 , so that the overall stability of the leg exerciser 100 can be high.

The leg exerciser provided by the present utility model is introduced above, and the principles and implementations of the present utility model are described with specific examples in this paper. It should be pointed out that for those of ordinary skill in the art, without departing from the principles of the present utility model, some improvements and modifications can also be made to the present utility model, and these improvements and modifications also fall into the protection of the claims of the present utility model. within the range.

Claims (10)

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;

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.

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;

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

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 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.

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,

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.

6. The leg exerciser of claim 4 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. The leg exerciser of claim 1, wherein the outer wall of the leg rest includes a curved surface to engage the leg of the user with the curved surface.

9. The leg exerciser of claim 4, wherein the drive rod has a shelf at an upper end thereof, the shelf being defined on an upper side of the lower cross member.

10. The leg exerciser of claim 3, wherein the upper wall of the top ring is a limiting surface for the lower end of the spring.

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