CN217139108U - Coordinated type single-upright-column structure for treadmill and treadmill - Google Patents

Abstract

The utility model discloses a linkage type single upright post structure for a running machine and the running machine, which are used for driving a handrail seat of the running machine to synchronously move when an upright post is folded or erected relative to a running platform of the running machine; this single-upright-column structure includes: the upright post, the connecting rod and the pressing centering structure; two ends of the upright post are respectively hinged with the armrest seat and the running platform of the treadmill through the shaft bodies; the connecting rod is arranged in parallel relative to a connecting line of two hinge points connected to the upright post, one end of the connecting rod is hinged to the armrest seat, and the other end of the connecting rod is eccentrically arranged relative to the hinge point at the same side; the connecting line of each hinge point is connected with the axis of the connecting rod to form a parallelogram structure; the tightening centering structure is sleeved on the shaft body and is positioned between the upright post and the running platform and/or between the upright post and the armrest seat so as to force the hinge hole for mounting the shaft body to be coaxial with the shaft body; the utility model provides a coordinated type single-upright-column structure and treadmill for treadmill, solve the treadmill stand respectively with run the not enough and poor problem of linkage of stability of platform, handrail seat.

Description

Coordinated type single-upright-column structure for treadmill and treadmill

Technical Field

The utility model relates to the field of sports equipment, concretely relates to coordinated type single-upright-column structure and treadmill for treadmill.

Background

Nowadays, people pay more attention to body health, and body exercise becomes a matter that people participate in all stages of life, especially aerobic running exercises, and meanwhile, people participate in outdoor exercises in a short time along with daily busy work, so that the household running machine is created and is deeply favored by the majority of users (sporters);

although can bring the convenience for the motion for current domestic formula treadmill, along with the promotion of user's demand, for example the treadmill uses experience sense, pleasing to the eye degree, use convenience etc. and current treadmill has can't satisfy, specifically as follows: (1) linkage type folding cannot be realized, namely, the whole folding and the storage of the running machine can be realized only by firstly storing and folding the running platform and the upright post of the running machine and then folding the upright post and a handrail seat (namely a control component part) of the running machine; (2) in order to realize stability of the existing treadmill, at least two upright posts are required to be arranged to meet the support of a handrail seat, and the distance between the two upright posts is large, otherwise the stability and the support capability of the treadmill during movement cannot be ensured; however, the size of the treadmill is increased by the supporting mode of the two upright posts, the cost is high, and the appearance is not good; in addition, the distance between the two upright posts cannot be reduced, the reason is that the supporting capability cannot be ensured if the distance is short, the hole shaft matching precision at the hinged position between the upright post and the running platform is insufficient due to the insufficient existing manufacturing precision, and then a certain gap exists between the upright post and the running platform, although the gap is in a small gap between the running platform and the upright post, the gap is enlarged through the length of the upright post, and the gap is greatly shaken when being fed back to the armrest seat at the other end of the upright post, while the treadmill can vibrate in the motion process (the vibration is not generated when a user runs but is the vibration of the motor of the treadmill itself), the treadmill can slightly shake at the running platform end, but is violently shaken when being transmitted to the armrest end, so that the treadmill is in a state of shaking and falling, and the use experience of a runner is greatly influenced; therefore, the two upright posts of the existing treadmill can not be supported in a short distance, and has large volume, poor aesthetic property, insufficient stability and poor use experience;

in summary, how to improve the above problems is also the technical difficulty that the applicant intends to solve.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the above-mentioned defect or the problem that exist among the background art, provide a coordinated type single-upright-column structure and treadmill for treadmill, its simple structure, preparation are simple and convenient, easy realization and with low costs, solve the treadmill stand respectively with run the platform, handrail seat's the not enough and poor problem of coordinated type nature of connection stability.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a linkage type single upright post structure for a running machine is used for driving an armrest seat of the running machine to synchronously move when an upright post is folded or erected relative to a running platform of the running machine; this single-upright-column structure includes: the upright post, the connecting rod and the pressing centering structure;

two ends of the upright post are respectively hinged with the armrest seat and the running platform of the treadmill through the shaft bodies;

the connecting rods are arranged in parallel relative to a connecting line of two hinge points connected to the upright posts, one end of each connecting rod is hinged to the armrest seat, and the other end of each connecting rod is eccentrically arranged relative to the hinge point on the same side; the connecting line of each hinge point is connected with the axis of the connecting rod to form a parallelogram structure;

and the tightening and centering structure is sleeved on the shaft body and is positioned between the upright post and the running platform and/or between the upright post and the armrest seat so as to force the hinge hole for mounting the shaft body to be coaxial with the shaft body.

Furthermore, the tightening centering structure comprises a first mounting seat, a second mounting seat, a sphere seat and a plurality of spheres; the first mounting seat and the second mounting seat are symmetrical and arranged in a ring shape; the opposite surfaces of the first mounting seat and the second mounting seat are provided with annular grooves along the circumferential direction, and the cross section of each annular groove is in an arc shape; each sphere is arranged on the sphere seat, part of the sphere is exposed and arranged in the annular groove to move, and the sphere seat is sleeved on the shaft body; the first mounting seat and the second mounting seat are respectively configured and embedded in the upright post, the armrest seat and/or the running platform, the first mounting seat and the second mounting seat are forced to be relatively tightly matched through the locking piece and the shaft body, and the ball body is matched with the arc surface of the annular groove, so that the hinge hole and the shaft body are arranged coaxially.

Furthermore, the device also comprises a limiting structure which comprises a limiting pin and a plurality of limiting holes; the limiting hole is eccentrically arranged on the running platform relative to the axis of the shaft body; the limiting pin penetrates through the upright post and is inserted into any limiting hole in the running table, so that the upright post is limited after being folded or erected relative to the running table.

Further, the running platform comprises a first parking part which is arranged in the upright post and is close to one end hinged with the running platform; the first stopping portion is provided with a first stopping position along the motion track of the periphery of the end portion of the connecting rod, and the first stopping portion stops after the connecting rod rotates for a certain angle, so that the connecting rod swings for a certain angle relative to the running platform.

Further, the armrest comprises a second stopping part which is arranged on the armrest seat; the second stopping part is provided with a second stopping position along the motion track of the periphery of the end part of the connecting rod, and the second stopping position is used for stopping the connecting rod after the connecting rod rotates for a certain angle, so that the connecting rod can swing for a certain angle relative to the armrest seat.

The support structure is arranged below a connecting line of a hinged point of the armrest seat and the upright post and a hinged point of the armrest seat and the connecting rod; the supporting structure comprises at least two supporting convex columns which are integrally formed on the upright post, and the supporting convex columns are abutted against the lower surface of the armrest seat when the upright post is in a standing state.

Furthermore, when the upright post is in a standing state relative to the running platform, a connecting line of the two supporting convex columns is parallel to a connecting line of two hinge points close to one end of the armrest seat; when the stand column is folded relative to the running table, an included angle is formed between a connecting line of the two supporting convex columns and a connecting line of two hinge points close to one end of the handrail seat.

Further, the distance between connecting lines of the two hinge points of the connecting rods, which are opposite to the connecting upright posts, is less than 10 cm.

The utility model provides a treadmill, its includes runs platform, stand, handrail seat and control panel, still includes coordinated type single-upright-column structure, it sets up in the stand and meets with running platform, handrail seat respectively.

As can be seen from the above description of the present invention, compared with the prior art, the present invention has the following advantages:

(1) the utility model provides a linkage type single-upright structure for a treadmill and the treadmill, which has simple structure, simple and convenient manufacture, easy realization and low cost, and solves the problems of insufficient connection stability and poor linkage between the treadmill upright and a running platform and a handrail seat respectively; the novel parallel-quadrilateral displacement mechanism is of a parallelogram structure formed by matching of the connecting rods and the upright posts, and four hinged points are used as movable points for parallel folding or erecting of the running table and the armrest seat, so that the parallel and linked displacement of the armrest seat relative to the running table is realized; still utilize to compel tight centering structure to realize making each pin joint axiality higher, the clearance is littleer to this guarantees each articulated position's stability, only can realize the outrigger with the single-upright post, realizes that small, pleasing to the eye degree is high, the good treadmill of stability.

(2) Compel tight centering structure through relative setting first, the second mount pad, spheroid and spheroid seat cooperation realize, this simple structure, and the reliability is high, through inlaying establish at handrail seat, stand and run bench first, the annular groove of second mount pad, the cambered surface cooperation through spheroid and annular groove is in order to realize the centering mode in relative approach process, make hinge hole and axis body approach in same axis, so that hole axle complex clearance reduces substantially, the clearance is little then the surplus of rocking after the cooperation is also little, feedback to the stand, the quantitative of rocking of handrail seat diminishes, and then realize the single-column stable stay.

(3) The utility model discloses still set up limit structure, it is used for folding or stand after spacing, further promotes overall structure's stability through simple spacing hole and spacer pin cooperation.

(4) The utility model discloses still be provided with first, second berth portion, stop the position of motion that the position limits the connecting rod through first, second in first, second berth portion, restrict parallelogram structure's position of motion promptly, the restriction reduces the volume as far as when guaranteeing stable support, does the basis for smart, little, beautiful treadmill.

(5) The utility model discloses still add bearing structure, and this bearing structure sets up triangle or four corners support mode of formation below two pin joints, further promotes the support ability, does the support for control panel, the control assembly on the arm rest seat, and the risk such as upset is difficult for appearing plays the guard action to control panel (being the screen), control assembly.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a three-dimensional decomposition structure diagram of the linkage type single-upright-column structure of the present invention.

Fig. 2 is a schematic view of a three-dimensional structure of the linkage type single-column structure of the present invention.

Fig. 3 is a cross-sectional view of the linkage type single-upright-column structure of the present invention in a standing state.

Fig. 4 is a three-dimensional exploded schematic view of the tightening centering structure of the present invention.

Fig. 5 is a cross-sectional view of the tightening centering structure of the present invention.

Fig. 6 is a cross-sectional view of the linkage type single-upright structure of the present invention in a folded state.

Fig. 7 is a cross-sectional view of the treadmill provided with the linkage type single upright post structure of the present invention in a standing state.

Fig. 8 is a cross-sectional view of the treadmill provided with the linkage type single upright post structure of the present invention in a folded state.

Description of the drawings: handrail seat 1, second stop 11, second stop 111, stand 2, accommodation portion 20, first stop 21, first stop 211, run platform 3, connecting rod 4, compel tight centering structure 5, first mount pad 51, annular groove 511/521, second mount pad 52, a plurality of spheroid 53, spheroid seat 54, axis body 6, beta structure 7, spacer pin 71, spacing hole 72, bearing structure 8, projection 81, hinge hole A1, hinge hole A2, hinge hole A3, hinge hole A4, control panel B, scarf joint groove C, line L.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are preferred embodiments of the invention and should not be considered as excluding other embodiments. Based on the embodiment of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention.

In the claims, the specification and the drawings, unless otherwise expressly limited, the terms "first", "second" or "third", etc. are used for distinguishing between different elements and not for describing a particular sequence.

In the claims, the description and the drawings of the present application, unless otherwise expressly limited, for the terms of orientation, such as "central", "horizontal", "longitudinal", "horizontal", "vertical", "top", "bottom", "inner", "outer", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise", etc., the terms of orientation or positional relationship are used based on the orientation and positional relationship shown in the drawings, and are only for convenience of describing and simplifying the present application, but not for indicating or implying that the device or element referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of the present application.

In the claims, the description and the drawings of the present application, unless otherwise expressly limited, the terms "fixedly connected" or "fixedly connected" should be interpreted broadly, that is, any connection between the two that does not have a relative rotational relationship or a relative rotational relationship, that is, including non-detachably fixed connections, integrally connected, and fixedly connected by other devices or elements.

In the claims, the specification and the drawings, the terms "including", "comprising", "having" and variations thereof are intended to be inclusive or non-exclusive.

Referring to fig. 1-6, the linkage type single upright post structure for a treadmill of the present invention is used for driving the armrest seat 1 of the treadmill to synchronously move when the upright post 2 is folded or erected relative to the treadmill deck 3, wherein the synchronous movement refers to that the armrest seat 1 synchronously moves in parallel relative to the deck 3 along with the movement of the upright post 2;

this single-upright-column structure includes: the upright post 2, the connecting rod 4 and the tightening centering structure 5;

two ends of the upright post 2 are respectively hinged with the armrest seat 1 and the running platform 3 of the running machine through a shaft body 6; it should be noted that, the column 2 of the present invention is a column 2 with an accommodating portion 20, the accommodating portion 20 is used for accommodating the connecting rod 4, and the supporting structure 8 is arranged in the accommodating portion, and the two ends of the column 2 along the axial direction thereof are respectively provided with a hinge hole a for the shaft body 6 to penetrate through; at least two hinge holes A are formed in the end part of the novel handrail running table 3, which is close to the running table, and one hinge hole A is formed in one end of the novel handrail running table, which is close to the handrail seat 1; further, a first rest 21 is provided near the edge of the hinge hole a hinged to the link 4;

a connecting rod 4, which is arranged in parallel relative to a connecting line of two hinge points of the connecting upright post 2, one end of which is hinged to the armrest base 1, and the other end of which is eccentrically and rotatably arranged relative to the hinge point on the same side (the hinge point on the same side is close to the hinge point of the upright post 2 and the running table 3, and the hinge point refers to the center of the hinge hole; the connecting line of each hinge point is connected with the axis of the connecting rod 4 to form a parallelogram structure, and the distance between the connecting lines of the two hinge points of the connecting rod 4, which are opposite to the connecting upright post 2, is less than 10 cm.

The tightening centering structure 5 is sleeved on the shaft body 6 and is positioned between the upright post 2 and the running platform 3 and/or between the upright post 2 and the armrest seat 1 so as to force the hinge hole A for mounting the shaft body 6 to be coaxial with the shaft body 6; the tightening centering structure 5 of the present invention may be in a form of combining a plurality of pins, and the like, and the tightening centering structure 5 of the present invention includes a first mounting seat 51, a second mounting seat 52, a sphere 53 and a sphere seat 54; the first mounting seat 51 and the second mounting seat 52 are symmetrical and are arranged annularly; the opposite surfaces of the first and second mounting seats 51 and 52 are provided with annular grooves 511 and 521 along the circumferential direction, the cross-sectional shapes of the annular grooves 511 and 521 are arc-shaped, and the annular grooves 511 and 521 are used for mounting a ball body 53; it should be noted that each ball 53 is installed on the ball seat 54, and part of the ball 53 is exposed and placed in the annular grooves 511 and 521 for movement, and the ball seat 54 is sleeved on the shaft body 6; the first and second mounting seats 51, 52 are respectively disposed and embedded in the upright 2, the armrest 1 and/or the running platform 3, and the locking member and the shaft body (the locking member refers to a nut, i.e. the shaft body is screwed and locked with the nut) are used to force the first and second mounting seats 51, 52 to be relatively tightly fitted, and the ball 53 is engaged with the arc surfaces of the annular grooves 511, 521, so that the hinge hole a and the shaft body 6 are coaxially disposed.

More specifically, the device further comprises a limiting structure 7, which comprises a limiting pin 71 and a plurality of limiting holes 72; the limiting hole 72 is eccentrically arranged on the running platform 3 relative to the axis of the shaft body 6; the limit pin 71 penetrates through the upright post 2 and is inserted into any limit hole 72 on the running table 3, so that the upright post 2 is limited after being folded or erected relative to the running table 3.

More specifically, it also comprises a first stop 21, which is arranged inside the upright 2 and close to the end hinged to the treadmill 3; the first stopping portion 21 is provided with a first stopping portion 211 along the peripheral motion track of the end portion of the connecting rod 4, and the first stopping portion is used for stopping the connecting rod 4 after the connecting rod 4 rotates for a certain angle, so that the connecting rod 4 swings for a certain angle relative to the running platform 3.

More specifically, a second rest portion 11 is further included, which is provided to the armrest seat 1; the second stopping portion 11 is provided with a second stopping position 111 along the peripheral motion track of the end portion of the connecting rod 4, and the second stopping portion is used for stopping the connecting rod 4 after the connecting rod 4 rotates for a certain angle, so that the connecting rod 4 swings for a certain angle relative to the armrest seat 1.

More specifically, the utility model further comprises a support structure 8, which is arranged below a connecting line L of the hinge point of the armrest seat 1 and the upright post 2 and the hinge point of the armrest seat 1 and the connecting rod 4, wherein the support structure 8 comprises at least two support convex columns 81, which are integrally formed on the upright post 2, and the support convex columns are abutted against the lower surface of the armrest seat 1 when the upright post 2 is in the standing state; it should be noted that, when the upright column 2 is in a standing state relative to the running platform 3, the connecting line of the two supporting convex columns 81 is parallel to the connecting line of the two hinge points close to one end of the armrest seat 1; when the upright post 2 is folded relative to the running table 3, the connecting line of the two supporting convex columns 81 and the connecting line of the two hinge points close to one end of the armrest seat 1 form an included angle.

Detailed description of the preferred embodimentsreferring to fig. 1-8, the present invention is exemplified by a treadmill equipped with a linked single upright structure, which mainly comprises the following components: the handrail seat 1, the upright post 2, the running platform 3, the control panel B, the connecting rod 4, the first mounting seat 51, the second mounting seat 52, a plurality of balls 53, a ball seat 54, a shaft body 6 and a limit pin 71;

the linkage type single upright post structure is arranged in the upright post 2 and is respectively connected with the running platform 3 and the armrest seat 1; during actual installation and use:

(1) preparing an upright post 2, wherein two ends of the upright post 2 are respectively hinged to a handrail seat 1 and a running platform 3 of the treadmill through a shaft body 6; the upright column 2 is an upright column 2 with an accommodating part 20, the accommodating part 20 is used for accommodating the connecting rod 4, and at least two convex columns 81 for supporting are formed on the accommodating part 20; the two ends of the upright post 2 along the axial direction are respectively provided with a hinge hole A, and each hinge hole A is used for the shaft body 6 to penetrate; at least two hinge holes A1 and A2 are formed at the end part of the novel treadmill 3, and one hinge hole A3 is formed at one end close to the armrest seat 1; further, a first rest portion 21 is provided near the edge of the hinge hole a2 to which the link 4 is hinged;

(2) the armrest seat 1 is provided with a hinge hole a4 hinged to the upright column 2 and a second stopping portion 11, and it should be noted that a second stopping portion 111 of the second stopping portion 11 is used for limiting a connection line of the two hinge holes A3 and a4 to be parallel to a connection line of the two convex columns 81 when the upright column 2 is in a standing state;

(3) it should be noted that the surface of the running platform 3 opposite to the upright post 2, and the surface of the upright post 2 opposite to the armrest base 1 are provided with embedding grooves C coaxially around the hinge hole a for embedding the first and second mounting bases 51, 52;

(4) preparing a first mounting seat 51 and a second mounting seat 52, wherein the first mounting seat 51 and the second mounting seat 52 are arranged in a ring shape, the opposite surfaces of the first mounting seat and the second mounting seat are provided with ring- shaped grooves 511 and 521 in a ring shape, and the ring- shaped grooves 511 and 521 are used for placing a ball 53;

(5) the upright post 2 is hinged with the running platform 3, the first and second mounting seats 51 and 52 are respectively arranged on the opposite surfaces of the running platform 3 and the upright post 2, the annular grooves 511 and 521 on the first and second mounting seats 51 and 52 are correspondingly arranged in the ball seat 54 provided with the ball 53, and the spherical part of the ball 53 is arranged in the annular grooves 511 and 521; then the shaft body 6 sequentially penetrates through the side wall of the running table 3, the first mounting seat 51, the second mounting seat 52, the ball seat 54 and the upright post 2, the other end of the shaft body 6 is screwed and locked through a nut, so that the upright post 2 is tightened towards the running table 3, and in the process, the shaft body 6 and the hinge hole A are coaxially arranged through automatic centering of the ball body 53 and the cambered surfaces of the annular grooves 511 and 521 in the first mounting seat 51 and the second mounting seat 52, and the deviation is not easy to occur;

(6) installing the column and the armrest seat 1, the connecting rod 4 and the column, and the connecting rod 4 and the armrest seat 1 in the same manner as the mounting of the column and the running platform 3, so that the connecting lines of the four hinge holes a1, a2, A3, and a4 form a parallelogram structure, wherein the column 2 and the armrest seat 1 are respectively provided with a first stop portion 21 and a second stop portion 11 corresponding to the peripheries of the two end portions of the connecting rod 4, and the rotation angle of the column 2 is limited by a first stop portion 211 of the first stop portion 21 and a second stop portion 111 of the second stop portion 11;

(7) the limit pin 71 is pre-installed on the upright post 2, and is inserted into the limit hole 72 for fixing when being folded or erected.

And the linkage type single-upright-column structure is assembled through the assembly.

When the folding type treadmill is used, the original factory state is that the treadmill is in a folding state, when the upright post 2 and the handrail seat 1 are required to be erected to normally use the treadmill, a user only needs to upwards support the handrail seat 1 or upwards swing the upright post 2, and the handrail seat 1 at the moment upwards moves in parallel relative to the running platform 3 along with the upright post 2, in the process, because the hinged point of the running platform 3 and the upright post 2 is a fixed point, when the handrail seat 1 is lifted or the upright post 2 is rotated, the other three hinged points start to change positions relative to the three movable points of the parallelogram along with the rotating track, namely, the distance between the axis of the connecting rod 4 and the connecting line of the hinged point of the upright post 2 respectively hinged with the running platform 3 and the handrail seat 1 is gradually increased or reduced, and the upright post 2 and the handrail seat 1 are further supported; in the process, the armrest seat 1 is pulled by one end of the connecting rod 4, so that the armrest seat 1 is restricted by the two hinge points A3 and a4 to move in parallel without swinging until the lower surface of the armrest seat 1 falls on the two convex columns 81 arranged in the upright post 2 (it should be noted that the connecting line of the two convex columns 81 and the two hinge holes a forms a four-corner support, which is better in stability), and meanwhile, the peripheries of the two end parts of the connecting rod 4 are respectively abutted against the first stop position 211 and the second stop position 111; finally, the upright post 2 is in a vertical state through the matching of the limiting pin 71 and the limiting hole 72; conversely, when the folding is to be carried out, the upright post 2 or the armrest seat 1 is rotated reversely, so that the folding function can be realized; it should be noted that, no matter be upright state or fold condition, through compelling tight centering structure 5 can promote the axiality, reduce the clearance between the hole axle to this reaches better support effect, and stability is better, and more importantly saves a stand 2, and the cost is lower, pleasing to the eye degree is better. The utility model provides a linkage type single-upright-post structure for a treadmill and the treadmill, which has simple structure, simple and convenient manufacture, easy realization and low cost, and solves the problems of insufficient connection stability and poor linkage between the treadmill upright post and a running platform and a handrail seat respectively; the novel parallel-quadrilateral displacement mechanism is of a parallelogram structure formed by matching of the connecting rods and the upright posts, and four hinged points are used as movable points for parallel folding or erecting of the running table and the armrest seat, so that the parallel and linked displacement of the armrest seat relative to the running table is realized; the tightening centering structure is utilized to realize that the coaxiality of each hinge point is higher and the gap is smaller, so that the stability of each hinge position is ensured, the stable support can be realized only by using a single upright post, and the treadmill with small volume, high aesthetic degree and good stability is realized; the utility model discloses a compel tight centering structure through relative setting first, second mount pad, spheroid and the cooperation of spheroid seat realize, this simple structure, and the reliability is high, through inlaying the annular groove of first, second mount pad established on handrail seat, stand and running platform, through the cooperation of the cambered surface of spheroid and annular groove in order to realize the centering mode in relative approach process, make hinge hole and axis body approach to the same axis, so that the clearance of hole axle cooperation reduces by a wide margin, the clearance is little then the surplus of rocking after the cooperation is also little, the rocking volume that feeds back to stand, handrail seat becomes little, and then realize the single-column stable support; the utility model is also provided with a limit structure which is used for limiting after folding or standing, and the stability of the whole structure is further improved through the matching of a simple limit hole and a limit pin; the utility model is also provided with a first stopping part and a second stopping part, the motion position of the connecting rod is limited through the first stopping part and the second stopping part on the first stopping part and the second stopping part, namely the motion position of the parallelogram structure is limited, the stable support is ensured, the volume is reduced as much as possible, and the utility model is used as a foundation for a fine, small and beautiful running machine; the utility model discloses still add bearing structure, and this bearing structure sets up triangle or four corners support mode of formation below two pin joints, further promotes the support ability, does the support for control panel, the control assembly on the arm rest seat, and the risk such as upset is difficult for appearing plays the guard action to control panel (being the screen), control assembly.

The description of the above specification and examples is intended to illustrate the scope of the invention, but should not be construed as limiting the scope of the invention.

Claims (9)

1. A linkage type single upright post structure for a running machine is used for driving an armrest seat of the running machine to synchronously move when an upright post is folded or erected relative to a running platform of the running machine; the method is characterized in that: this single-upright-column structure includes: the upright post, the connecting rod and the pressing centering structure;

two ends of the upright post are respectively hinged with the armrest seat and the running platform of the treadmill through the shaft bodies;

the connecting rods are arranged in parallel relative to a connecting line of two hinge points connected to the upright posts, one end of each connecting rod is hinged to the armrest seat, and the other end of each connecting rod is eccentrically arranged relative to the hinge point on the same side; the connecting line of each hinge point is connected with the axis of the connecting rod to form a parallelogram structure;

and the tightening centering structure is sleeved on the shaft body and is positioned between the upright post and the running platform and/or between the upright post and the armrest seat so as to force the hinge hole for mounting the shaft body to be coaxial with the shaft body.

2. The linkage type single-upright structure for the running machine as claimed in claim 1, wherein: the tightening centering structure comprises a first mounting seat, a second mounting seat, a sphere seat and a plurality of spheres; the first mounting seat and the second mounting seat are symmetrical and arranged in a ring shape; the opposite surfaces of the first mounting seat and the second mounting seat are provided with annular grooves along the circumferential direction, and the cross section of each annular groove is in an arc shape; each sphere is arranged on the sphere seat, part of the sphere is exposed and arranged in the annular groove to move, and the sphere seat is sleeved on the shaft body; the first mounting seat and the second mounting seat are respectively configured and embedded in the upright post, the armrest seat and/or the running platform, the first mounting seat and the second mounting seat are forced to be relatively tightly matched through the locking piece and the shaft body, and the ball body is matched with the arc surface of the annular groove, so that the hinge hole and the shaft body are arranged coaxially.

3. The linkage type single-upright structure for the running machine as claimed in claim 1, wherein: the limiting structure comprises a limiting pin and a plurality of limiting holes; the limiting hole is eccentrically arranged on the running platform relative to the axis of the shaft body; the limiting pin penetrates through the upright post and is inserted into any limiting hole in the running table, so that the upright post is limited after being folded or erected relative to the running table.

4. The linkage type single upright post structure for the running machine as claimed in claim 1, 2 or 3, wherein: the first stopping part is arranged in the upright post and is close to one end hinged with the running platform; the first stopping portion is provided with a first stopping position along the motion track of the periphery of the end portion of the connecting rod, and the first stopping portion stops after the connecting rod rotates for a certain angle, so that the connecting rod swings for a certain angle relative to the running platform.

5. The linkage type single-upright structure for the treadmill of claim 4, wherein: the second stopping part is arranged on the armrest seat; the second stopping part is provided with a second stopping position along the motion track of the periphery of the end part of the connecting rod, and the second stopping position is used for stopping the connecting rod after the connecting rod rotates for a certain angle, so that the connecting rod can swing for a certain angle relative to the armrest seat.

6. The linkage type single-upright structure for the treadmill as recited in claim 1, 2 or 3, wherein: the support structure is arranged below a connecting line of a hinged point of the armrest seat and the upright post and a hinged point of the armrest seat and the connecting rod; the supporting structure comprises at least two supporting convex columns which are integrally formed on the upright post, and the supporting convex columns are abutted against the lower surface of the armrest seat when the upright post is in a standing state.

7. The linkage type single-upright structure for the running machine as claimed in claim 6, wherein: when the upright post is in a standing state relative to the running platform, the connecting line of the two supporting convex columns is parallel to the connecting line of the two hinge points close to one end of the armrest seat; when the stand is folded relative to the running table, the connecting line of the two supporting convex columns and the connecting line of the two hinge points close to one end of the armrest seat form an included angle.

8. The linkage type single-upright structure for the treadmill as recited in claim 1, 2 or 3, wherein: the distance between the connecting lines of the two hinge points of the connecting rods which are relatively connected with the upright posts is less than 10 cm.

9. The utility model provides a treadmill, its includes race platform, stand, handrail seat and control panel, its characterized in that: the linked single-upright structure of any one of claims 1 to 8 is further comprised, which is arranged in the upright and is respectively connected with the running platform and the armrest seat.

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