CN113018762B

CN113018762B - Pull rod structure and body-building device with same

Info

Publication number: CN113018762B
Application number: CN202110203724.6A
Authority: CN
Inventors: 李寅生
Original assignee: Shanghai Yinsheng Technology Co ltd
Current assignee: Shanghai Yinsheng Technology Co ltd
Priority date: 2021-02-23
Filing date: 2021-02-23
Publication date: 2022-12-09
Anticipated expiration: 2041-02-23
Also published as: CN113018762A

Abstract

The invention discloses a pull rod structure and a body building device with the same, wherein the pull rod structure comprises: the bracket is provided with a sliding seat; the pull rod is arranged on one side of the sliding seat, and the lower end of the pull rod is rotationally connected with the bracket; the limiting seat is slidably arranged on the sliding seat; one end of the elastic piece is connected with the sliding seat, the other end of the elastic piece is connected with the limiting seat, and the elastic piece drives the limiting seat to be abutted against the pull rod; the pull rope is connected with the pull rod. The user is when using the fitness equipment to temper the pulling force, and behind the power pulling stay cord, the stay cord can stimulate the pull rod towards the direction swing near the sliding seat center, and at this in-process, the elasticity that the elastic component need be overcome to the pull rod slides in order to promote spacing seat to realize tempering the effect of pulling force, this kind of structural style is simple, is convenient for realize, easily user tempers the use moreover.

Description

Pull rod structure and body-building device with same

Technical Field

The invention relates to the technical field of fitness, in particular to a pull rod structure and a fitness device with the same.

Background

In pulling force body-building apparatus, have a plurality of balancing weights to stack in a fixed spout usually, be equipped with two fixed guide rails in the spout, every balancing weight is worn to overlap on the guide rail and can be followed the guide rail and slided, then passes all balancing weights from top to bottom with a pulling force pole to there is fixed bolt hole to correspond with the bolt hole in the middle of every balancing weight on the pulling force pole. The pull rod can be pulled to move up and down during body building, and the pull training form utilizing the gravity of the balancing weights has a plurality of defects, for example, the weight of the body building device is very large due to the fact that a plurality of balancing weights need to be preset, the structure is complex, and the pull rod is inconvenient to realize, so that a novel pull rod structure is necessarily designed to perform pull training.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. To this end, it is an object of the present invention to provide a drawbar arrangement.

Another object of the present invention is to provide an exercise machine having the above-mentioned pull rod structure.

The technical scheme of the invention is as follows: a drawbar arrangement comprising: the support is provided with a sliding seat; the pull rod is arranged on one side of the sliding seat, and the lower end of the pull rod is rotatably connected with the bracket; the limiting seat is slidably arranged on the sliding seat; one end of the elastic piece is connected with the sliding seat, the other end of the elastic piece is connected with the limiting seat, and the elastic piece drives the limiting seat to be abutted to the pull rod; the pull rope is connected with the pull rod and suitable for pulling the pull rod to swing towards the direction close to the center of the sliding seat, and the elastic force of the elastic piece needs to be overcome to push the limiting seat to slide in the swinging process of the pull rod.

Furthermore, a bearing is rotatably arranged on the limiting seat and is abutted against the pull rod.

Furthermore, the sliding seat comprises two connecting plates which are arranged at intervals along the front-back direction, the pull rod and the limiting seat are arranged between the two connecting plates, a sliding groove is formed in the connecting plates, a sliding rod is arranged on the limiting seat, and the sliding rod is in sliding fit with the sliding groove.

Further, the slide groove extends obliquely downward in a direction from the draw bar to the center of the slide holder.

Furthermore, the slide bar is kept away from the one end of spacing seat is equipped with the mount, the elastic component is nitrogen spring, nitrogen spring's one end with the connecting plate rotates and links to each other, the other end with the mount rotates and links to each other.

Furthermore, the fixing frame and one end of the connecting plate, which is far away from the pull rod, are bent to form a shape like' 21274, the openings of the fixing frame and the connecting plate are opposite, one end of the nitrogen spring is rotatably arranged at the opening of the fixing frame, and the other end of the nitrogen spring is rotatably arranged at the opening of the connecting plate, which is far away from the pull rod.

Further, the nitrogen spring is disposed obliquely downward in a direction from the draw bar to the center of the slide holder.

Furthermore, a pull rod mounting seat is arranged on the support and located below the sliding seat, and the lower end of the pull rod is rotatably connected with the pull rod mounting seat.

Furthermore, the support is provided with a fixed pulley, the fixed pulley is positioned above the sliding seat, the support is further provided with a rope penetrating hole, one end of the pull rope is connected with the upper end of the pull rod, and the other end of the pull rope bypasses the fixed pulley to extend upwards and penetrate through the rope penetrating hole.

Compared with the prior art, the invention has the following beneficial effects:

the user is when using the fitness equipment to temper the pulling force, and behind the power pulling stay cord, the stay cord can stimulate the pull rod towards the direction swing near the sliding seat center, and at this in-process, the elasticity that the elastic component need be overcome to the pull rod slides in order to promote spacing seat to realize tempering the effect of pulling force, this kind of structural style is simple, is convenient for realize, easily user tempers the use moreover.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts:

FIG. 1 is a perspective view from one side of the present invention;

FIG. 2 is a perspective view from another side of the present invention;

FIG. 3 is a perspective view of the present invention with the upper fixing plate removed;

fig. 4 is a perspective view of the present invention with an upper fixing plate removed.

Reference numerals:

1. a support; 2. a sliding seat; 3. a pull rod; 4. a limiting seat; 5. an elastic member; 6. pulling a rope; 7. a bearing; 8. a chute; 9. a slide bar; 10. a fixed pulley; 11. a connecting plate; 12. a fixed mount; 13. an upper fixing plate; 14. a lower fixing plate; 15. a pull rod mounting seat.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "vertical", "circumferential", "radial", "axial", and the like, indicate orientations and positional relationships based on those shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

A structure of a drawbar 3 and an exercise machine having the same according to an embodiment of the present invention will be described with reference to fig. 1 to 4, the drawbar 3 structure including: support 1, pull rod 3, spacing seat 4, elastic component 5 and stay cord 6, be equipped with sliding seat 2 on the support 1, one side of sliding seat 2 is located to pull rod 3, the lower extreme of pull rod 3 rotates with support 1 and links to each other, install on sliding seat 2 spacing seat 4 slidable, the one end of elastic component 5 links to each other with sliding seat 2, the other end links to each other with spacing seat 4, elastic component 5 often drives spacing seat 4 and 3 butts of pull rod, stay cord 6 links to each other with pull rod 3, stay cord 6 is suitable for the direction swing that pulling pull rod 3 orientation is close to sliding seat 2 center, and pull rod 3 need overcome the elasticity of elastic component 5 at the swing in-process and slide in order to promote spacing seat 4.

Particularly, the user is when using the fitness equipment to temper tensile force, after pulling stay cord 6 with power, stay cord 6 can pull 3 towards the direction swing of being close to the 2 centers of sliding seat, and at this in-process, pull rod 3 need overcome the elasticity of elastic component 5 and slide in order to promote spacing seat 4 to realize tempering the effect of tensile force, this kind of structural style is simple, is convenient for realize, and easy user tempers the use moreover.

In order to further explain the working principle of the structure of the pull rod 3, the structure of the exercise machine will be further explained. As shown in fig. 3 and 4, the body-building apparatus comprises a sliding seat 2, a driving mechanism and the above-mentioned pull rod 3 structure, wherein the sliding seat 2 is mounted on a bracket 1 in a way of moving up and down; the driving mechanism is arranged on the bracket 1 and connected with the sliding seat 2 to drive the sliding seat 2 to move up and down.

After the body builder is assembled, when the pulling force needs to be adjusted, the sliding seat 2 can be driven to move up and down through the driving mechanism, when the sliding seat 2 moves up and down, the elastic piece 5 and the limiting seat 4 can also move up and down along with the sliding seat 2, so that the abutting position point of the limiting seat 4 and the pull rod 3 can be changed, the resistance torque borne by the pull rod 3 in the swinging process can be changed, the pulling force can be adjusted, and the stepless adjustment of the pulling force can be realized because the up and down positions of the sliding seat 2 can be adjusted steplessly, the flexibility of the pulling force adjustment is greatly improved, and different training requirements of different users can be met.

The specific form of the structure of the tie bar 3 will be described in detail below.

In this embodiment, as shown in fig. 1, 2, and 4, the bracket 1 includes an upper fixing plate 13 and a lower fixing plate 14, the sliding seat 2 and the pull rod 3 are both disposed between the upper fixing plate 13 and the lower fixing plate 14, wherein the lower fixing plate 14 is provided with a pull rod mounting seat 15, the pull rod mounting seat 15 is located below the sliding seat 2, and the lower end of the pull rod 3 is rotatably connected to the pull rod mounting seat 15.

In this embodiment, as shown in fig. 2 and 4, a fixed pulley 10 is disposed on a bracket 1 (e.g., an upper fixing plate 13), the fixed pulley 10 is located above the sliding seat 2, a rope threading hole is further disposed on the bracket 1, one end of the rope 6 is connected to the upper end of the pull rod 3, the other end of the rope extends upward around the fixed pulley 10 and passes through the rope threading hole, and the fixed pulley 10 is disposed to change a winding path of the rope 6, so as to facilitate pulling the pull rod 3 to swing.

In this embodiment, as shown in fig. 3 and 4, the bearing 7 is rotatably disposed on the limiting seat 4, and the bearing 7 abuts against the pull rod 3, so that the friction resistance applied to the pull rod 3 can be reduced by the rotation of the bearing 7, and the swing of the pull rod 3 is facilitated. The bearing 7 is a needle bearing 7, and of course, the bearing 7 may be of another type, which is not limited herein.

In this embodiment, as shown in fig. 4, the sliding seat 2 includes two connecting plates 11 arranged at intervals along the front-rear direction, the pull rod 3 and the limiting seat 4 are both arranged between the two connecting plates 11, the connecting plate 11 is provided with a sliding groove 8, the limiting seat 4 is provided with a sliding rod 9, and the sliding rod 9 is in sliding fit with the sliding groove 8, so that the guiding and limiting effects on the movement of the limiting seat 4 can be achieved, and the use safety of the device can be improved.

In the present embodiment, as shown in fig. 4, the slide groove 8 extends obliquely downward in a direction from the tie bar 3 to the center of the slide holder 2 (for example, in a direction from right to left as viewed in the drawing), thereby facilitating the swing of the tie bar 3.

In this embodiment, as shown in fig. 3, the elastic member 5 is a nitrogen spring, the nitrogen spring is a novel elastic assembly using high-pressure nitrogen as a working medium, and the novel elastic assembly has a small volume, a large elastic force, a long stroke, a stable operation, a long service life, and a constant elastic force in a telescopic process, one end of the nitrogen spring is rotatably connected with the sliding seat 2, and the other end of the nitrogen spring is rotatably connected with the limiting seat 4, so that the nitrogen spring can flexibly adjust the position of the nitrogen spring when the nitrogen spring is extruded.

Of course, the elastic member 5 may be in other forms, which are not limited herein.

In this embodiment, as shown in fig. 3, a fixing frame 12 is disposed at one end of the sliding rod 9 away from the limiting seat 4, the fixing frame 12 and one end of the connecting plate 11 away from the pull rod 3 are both bent to form a shape of '21274', and the openings of the two are opposite, one end of the nitrogen spring is rotatably disposed at the opening of the fixing frame 12, and the other end of the nitrogen spring is rotatably disposed at the opening of the connecting plate 11 at one end away from the pull rod 3, so that the nitrogen spring is conveniently installed, and the fixing frame 12 and the connecting plate 11 in this structural form have high structural strength and are not easily damaged.

In the present embodiment, as shown in fig. 3, the nitrogen spring is disposed obliquely downward in a direction from the tie bar 3 to the center of the slide holder 2 (for example, in a direction from right to left as viewed in the drawing).

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A pull rod structure for exercise equipment, comprising:

the support is provided with a sliding seat;

the driving mechanism is arranged on the bracket and connected with the sliding seat to drive the sliding seat to move up and down;

the pull rod is arranged on one side of the sliding seat, and the lower end of the pull rod is rotatably connected with the bracket;

the limiting seat is slidably arranged on the sliding seat;

one end of the elastic piece is connected with the sliding seat, the other end of the elastic piece is connected with the limiting seat, and the elastic piece drives the limiting seat to be abutted against the pull rod;

the pull rope is connected with the pull rod and is suitable for pulling the pull rod to swing towards the direction close to the center of the sliding seat, and the elastic force of the elastic piece needs to be overcome to push the limiting seat to slide in the swinging process of the pull rod.

2. The pull rod structure of exercise equipment as claimed in claim 1, wherein the position-limiting seat is rotatably provided with a bearing, and the bearing is abutted against the pull rod.

3. The pull rod structure of exercise equipment as claimed in claim 1, wherein said sliding seat comprises two connecting plates spaced apart in the front-rear direction, said pull rod and said limiting seat are disposed between said two connecting plates, said connecting plates are provided with sliding grooves, said limiting seat is provided with sliding rods, and said sliding rods are slidably engaged with said sliding grooves.

4. The exercise machine pull rod structure of claim 3, wherein the slide slot extends diagonally downward in a direction from the pull rod to the center of the slide block.

5. The pull rod structure of exercise equipment according to claim 3, wherein the slide rod is provided with a fixing frame at one end thereof away from the limiting seat, the elastic member is a nitrogen spring, one end of the nitrogen spring is rotatably connected with the connecting plate, and the other end of the nitrogen spring is rotatably connected with the fixing frame.

6. The pull rod structure of the body building apparatus as claimed in claim 5, wherein the fixing frame and the connecting plate are bent to form a shape like "\21274", and the openings of the fixing frame and the connecting plate are opposite to each other, one end of the nitrogen spring is rotatably disposed at the opening of the fixing frame, and the other end of the nitrogen spring is rotatably disposed at the opening of the connecting plate, which is far from the end of the pull rod.

7. The exercise machine drawbar arrangement according to claim 5, wherein the nitrogen spring is disposed diagonally downward in a direction from the drawbar to the center of the slide block.

8. The pull rod structure of exercise apparatus as claimed in claim 1, wherein said frame is provided with a pull rod mounting seat, said pull rod mounting seat is located below said sliding seat, and the lower end of said pull rod is rotatably connected to said pull rod mounting seat.

9. The pull rod structure of claim 1, wherein the bracket is provided with a fixed pulley, the fixed pulley is positioned above the sliding seat, the bracket is further provided with a rope through hole, one end of the rope is connected with the upper end of the pull rod, and the other end of the rope passes through the rope through hole and extends upwards around the fixed pulley.