CN215741607U - Treadmill and stand beta structure thereof - Google Patents

Abstract

The utility model relates to the technical field of fitness equipment, in particular to a treadmill and an upright post folding structure thereof. Comprises a frame and a column arranged on the frame; the bottom of the upright post is fixedly provided with an arc-shaped plate, the frame is provided with a rotating shaft, the upright post and the arc-shaped plate penetrate through the rotating shaft and can be hinged with the rotating shaft along the direction, and the hinged point is a shaft point B; the locking device comprises an arc-shaped plate, a locking component and a locking component, wherein the arc-shaped plate is provided with a track, the track is provided with the locking component in a penetrating manner, the locking component at least comprises a long shaft, and the long shaft comprises a clamping section and an unlocking section with the diameter smaller than that of the clamping section; the long shaft can axially move relative to the shaft point B; when the clamping section is positioned in the track, the clamping section is locked relative to the arc-shaped plate; when the unlocking section is positioned in the track, the arc-shaped plate can rotate relative to the unlocking section; when the arc-shaped plate is locked by the long shaft, the upright posts are in an unfolded/folded state; when the long shaft moves axially relative to the shaft point B to unlock the arc-shaped plate, the upright post and the arc-shaped plate rotate along the shaft point B to be in a folding/vertical state.

Description

Treadmill and stand beta structure thereof

Technical Field

The utility model relates to the technical field of fitness equipment, in particular to a treadmill and an upright post folding structure thereof.

Background

The treadmill is a body-building apparatus which is always provided for families and gymnasiums, is the simplest one of the current family body-building apparatuses, and is the best choice of the family body-building apparatus.

Most of stand columns of the existing running machine can not be folded, and a small part of the existing running machine with the function of folding the stand columns is complex in folding structure, complex in folding mode, time-consuming and labor-consuming, and causes labor cost waste.

Disclosure of Invention

In order to solve the above problems, a first object of the present invention is to provide a pillar folding structure, which can quickly fold a pillar, and has a simple structure and simple operation, and the folded pillar greatly saves the occupied space, and is convenient for the storage and transportation of the treadmill; the upright post can be locked in a folded or unfolded state, so that the folding and unfolding upright post is more practical; the second objective of the present invention is to provide a treadmill with the above-mentioned folding structure of the upright post.

In order to achieve the purpose, the utility model adopts the following technical scheme: the running platform comprises a frame and a stand column arranged on the frame, wherein the frame is provided with a running platform; the method is characterized in that:

the bottom of the upright post is fixedly provided with an arc-shaped plate, the frame is provided with a rotating shaft, the upright post and the arc-shaped plate penetrate through the rotating shaft and can be hinged with the rotating shaft along the direction, and the hinged point is a shaft point B;

the arc-shaped plate is provided with a track, the track is a section of arc taking a shaft point B as a circle center, a locking assembly is arranged on the track in a penetrating mode, the locking assembly at least comprises a long shaft, and the long shaft comprises a clamping section and an unlocking section with the diameter smaller than that of the clamping section; the long shaft can axially move relative to the shaft point B;

when the clamping section is positioned in the track, the clamping section is locked relative to the arc-shaped plate; when the unlocking section is positioned in the track, the arc-shaped plate can rotate relative to the unlocking section;

when the arc-shaped plate is locked by the long shaft, the upright posts are unfolded/folded, and the upright posts are vertically/folded and fixed on the frame;

when the long shaft moves axially relative to the shaft point B to unlock the arc-shaped plate, the upright post and the arc-shaped plate rotate along the shaft point B to be in a folding/vertical state, and the arc-shaped plate simultaneously rotates along the unlocking section.

In the technical scheme, the upright post and the arc-shaped plate are fixed into a whole and can rotate along an axial point B on the frame together; the lower part of arc is equipped with the arc track, and locking Assembly's major axis passes the arc track, and the joint section on it can block the arc track, and the rotation of restriction arc, when major axis axial displacement, the section of unblock on it is in the arc track, and the arc can rotate together with the stand, and the relative unblock section of arc track slides simultaneously. The structure can unlock the upright post only by pulling the long shaft to move axially, the operation is simple, the upright post is turned over to realize the folding of the upright post, and the folded upright post greatly saves the occupation and is convenient to transport and store; in addition, have two places to be relative pivoted on the arc after the unblock, make the stand more stable when rotating, after the stand has been folded, also can lock the stand, the stand swing when preventing to accomodate, transport, it is more reasonable, practical.

Preferably, the locking assembly further comprises a knob fixed at the end of the long shaft; the track comprises an arc section and bayonets which are arranged at two ends of the arc section and have calibers larger than the arc diameter of the arc section, and the diameter of the clamping section is smaller than the calibers of the bayonets; the diameter of the unlocking section is smaller than the arc diameter of the arc section;

the long shaft penetrates through the bayonet and is inserted into the frame, and the clamping section is positioned on the bayonet and props against the communication part of the bayonet and the arc section to prevent the arc plate from rotating relative to the long shaft; the upright posts are in an unfolded/folded state, and are vertically/folded and fixed on the frame;

the long shaft axially moves relative to the shaft point B, the unlocking section is positioned in the bayonet, and the arc section can rotate relative to the unlocking section, so that the arc-shaped plate and the upright post rotate along the shaft point B to be in a folding/upright state.

Among the above-mentioned technical scheme, the knob is fixed at the major axis tip, and the axial displacement of major axis can be realized to the pull knob, and the impetus is more stable, comfortable, and the knob can be better hides the tip of major axis, plays pleasing to the eye effect. When the upright post is upright, the long shaft penetrates through the frame, the clamping section is clamped into the bayonet, and the diameter of the clamping section is larger than the arc diameter of the rail, so that the rail/arc-shaped plate can be prevented from rotating relative to the clamping section, and the effect of locking the arc-shaped plate/upright post is achieved; because the diameter of the unlocking section is smaller than the arc diameter of the rail, the unlocking section to which the long shaft moves is positioned in the bayonet by pulling the knob, and the rail/arc-shaped plate can rotate to the other bayonet relative to the unlocking section, so that the upright post is in a folded state. Because the bayonet is located at the both ends of track, so the stand is folding state back, loosens knob joint section and blocks in another bayonet again, and the stand under folding state is also locked.

Preferably, the locking assembly further comprises a clamping ring, a circular groove is formed in the clamping section, the clamping ring is clamped on the circular groove, the long shaft penetrates through the bayonet and is inserted into the frame, and the clamping ring abuts against the edge of the bayonet. Among this technical scheme, the setting of snap ring is for the axial displacement of restriction major axis, and the bore of bayonet socket is greater than the diameter of joint section, though the tip of major axis has the knob to guarantee can not throw off from the bayonet socket by the major axis, but has the lag outside the arc, and the snap ring can restrict the excessive removal of major axis and make the knob expose outside the lag, is convenient for snatch, also prevents that the knob from colliding with the stand lower extreme and having wearing and tearing.

Preferably, on the frame, the below of pivot is equipped with the axle sleeve, the major axis inserts in the axle sleeve, the axle sleeve extends towards the direction of pivot and is equipped with the fixed block, the arc cover is established at the pivot up end and is pasted axle sleeve and fixed block, the external diameter of snap ring is greater than the bore of axle sleeve. In the technical scheme, the long shaft penetrates through the shaft sleeve, the arc plate is attached to the shaft sleeve and rotates with the fixed block, the attached area is larger, the arc plate is prevented from swinging when rotating, and the rotation is smoother.

Preferably, the locking assembly further comprises a spring, a clamping block is screwed in the middle of the long shaft, a shaft sleeve is arranged on the inner wall of the side portion of the frame, the long shaft penetrates through the shaft sleeve, the spring is sleeved on the long shaft, one end of the spring abuts against the clamping block, the other end of the spring abuts against the shaft sleeve, the long shaft axially moves to the unlocking section along a shaft point B and is located in the bayonet, and the spring is in a compressed state. Among this technical scheme, after the pulling knob, the major axis removes, and the spring between fixture block and the cutting ferrule is compressed to produce elasticity to major axis itself, rotate to the unblock section along the unblock section at track/arc and be arranged in another bayonet socket, loosen the knob, because the effect of spring elasticity, the bayonet socket is blocked in again and is locked the stand in the bayonet socket to the joint section.

Preferably, the joint of the clamping section and the unlocking section is a conical section, the long shaft axially moves to the unlocking section along a shaft point B and is positioned in the bayonet, and the spring is in a compressed state; when the spring acts on the long shaft to enable the clamping section to be clamped into the bayonet, the conical surface section can prevent the end face of the clamping section from abutting against the edge of the bayonet, and the clamping section can not be clamped into the bayonet. In the technical scheme, if the joint of the clamping section and the unlocking section is not provided with the conical surface section, the end surface of the clamping section is in a circular surface shape and can be abutted against the edge of the bayonet, so that the clamping section cannot be clamped into the bayonet for locking, and the inclined surface of the conical surface section plays a role in guiding and sliding, so that the clamping section can more smoothly enter the bayonet for locking the arc.

Preferably, the lower end of the upright post is fixedly provided with a protective sleeve, the protective sleeve is covered outside the arc-shaped plate, the lower end of the protective sleeve is provided with an arc opening, and the knob is exposed outside the arc opening. In the technical scheme, the protective sleeve is arranged to cover the arc-shaped plate and the long shaft part, so that the protective sleeve plays a role of attractive appearance, the arc opening is arranged corresponding to the track, and the arc opening/the protective sleeve can conveniently rotate relative to the knob.

Preferably, the lateral wall of arc is fixed and is equipped with the dog, wear to be equipped with the tight screw in top on the dog, be equipped with the fixed plate on the frame, pivot, axle sleeve and fixed block all set up on the fixed plate, when arc and stand rotate to the stand along pivot point B and are upright state, the lateral wall of fixed plate is withstood in the tip of the tight screw in top. In the technical scheme, the arrangement of the fixing plate enables the rotating shaft, the shaft sleeve and the fixing block to be more stable; the arrangement of the jacking screw and the stop block is used for adjusting the shaking amount of the upright post, and the tightness of the jacking screw can be adjusted; when the stand is upright, the top tight screw can be rotated to adjust the clearance between the top tight screw and the side wall of the fixing plate to be minimum and tightly press the top tight screw, so that the stand is prevented from shaking forwards and backwards. In addition, when the upright post is erected, the jacking screw does not need to be adjusted when the upright post is used for folding in the follow-up process after the jacking screw is adjusted and tightly presses the side wall of the fixing frame.

A treadmill comprising the column folding structure of any of the above.

Drawings

Fig. 1 is an exploded perspective view of a folding structure of a pillar.

Fig. 2 is a schematic perspective view of a folded structure of an upright post relative to a frame.

Fig. 3 is an exploded perspective view of a locking assembly of a folding structure of a pillar.

FIG. 4 is a side view of a folded structure of a pillar with respect to a vehicle frame.

Fig. 5 is a schematic top view of a folded structure of the pillar with respect to the frame.

FIG. 6 is a side view of the treadmill with a folding structure of the upright shown in an unfolded position relative to the frame.

FIG. 7 is a perspective view of the treadmill with a folded structure of the upright relative to the frame.

Fig. 8 is a perspective view of the treadmill with a folding structure of the upright, showing the upright in an unfolded state relative to the frame.

Detailed Description

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. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.

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. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be 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 present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The first embodiment is as follows:

the upright column folding structure shown in fig. 1-8 comprises a frame 1 and upright columns 2 arranged on the frame 1, wherein a running platform 3 is arranged on the frame 1; the fixed arc 4 that is equipped with in bottom of stand 2 is equipped with pivot 5 on the frame 1, stand 2 and arc 4 wear to locate on pivot 5 and can follow and pivot 5 is articulated, and the pin joint is pivot point B6. The arc-shaped plate 4 is provided with a track 7, and the track 7 is a section of circular arc taking a shaft point B6 as a circle center. In addition, a locking assembly is arranged on the rail 7 in a penetrating manner, the locking assembly at least comprises a long shaft 8, the long shaft 8 comprises a clamping section 9 and an unlocking section 10 with the diameter smaller than that of the clamping section 9. The long shaft 8 can axially move relative to the shaft point B6; when the clamping section 9 is positioned in the track 7, the clamping section 9 is locked relative to the arc-shaped plate 4; when the unlocking section 10 is positioned in the track 7, the arc-shaped plate 4 can rotate relative to the unlocking section 10. When the arc-shaped plate 4 is locked by the long shaft 8, the upright post 2 is in an unfolded/folded state, and the upright post 2 is vertically/folded and fixed on the frame 1; when the long shaft 8 moves axially relative to the shaft point B6 to unlock the arc plate 4, the upright post 2 and the arc plate 4 rotate along the shaft point B6 to be in a folded/erected state, and the arc plate 4 simultaneously revolves along the unlocking section 10.

In the technical scheme, the upright post 2 and the arc-shaped plate 4 are fixed into a whole and can rotate along an axial point B6 on the frame 1; arc track 7 is equipped with to the lower part of arc 4, and locking Assembly's major axis 8 passes arc track 7, and joint section 9 on it can block arc track 7, and restriction arc 4's rotation, when major axis 8 axial displacement, the section of unblanking 10 on it is located arc track 7, and arc 4 can rotate together with stand 2, and arc track 7 slides relatively the section of unblanking 10 simultaneously. The structure can unlock the upright post 2 only by pulling the long shaft 8 to move axially, the operation is simple, the upright post 2 is turned over to realize the folding of the upright post, and the folded upright post 2 greatly saves the occupation and is convenient to transport and store; in addition, have two places to be relative pivoted on the arc 4 after the unblock, make stand 2 more stable when rotating, after stand 2 has been folded, also can lock stand 2, stand 2 swing when preventing to accomodate, transport, more reasonable, practical.

Further, the locking assembly also comprises a knob 11 fixed at the end of the long shaft 8; the track 7 comprises an arc section 12 and bayonets 13 which are arranged at two ends of the arc section 12 and have the caliber larger than the arc diameter of the arc section 12, and the diameter of the clamping section 9 is smaller than the caliber of the bayonets 13; the diameter of the unlocking section 10 is smaller than the arc diameter of the arc section 12. The long shaft 8 penetrates through the bayonet 13 and is inserted into the frame 1, and the clamping section 9 is positioned on the bayonet 13 and abuts against the communication position of the bayonet 13 and the arc section 12, so that the arc-shaped plate 4 is prevented from rotating relative to the long shaft 8. The upright post 2 is in an unfolding/folding state, and the upright post 2 is vertically/foldedly fixed on the frame 1; the long shaft 8 moves axially relative to the shaft point B6, the unlocking section 10 is positioned in the bayonet 13, and the arc section 12 can rotate relative to the unlocking section 10, so that the arc-shaped plate 4 and the upright post 2 rotate along the shaft point B6 to be in a folding/standing state.

Among the above-mentioned technical scheme, knob 11 is fixed in the long axle 8 tip, and the axial displacement of long axle 8 can be realized to pull knob 11, and the impetus is more stable, comfortable, and the knob 11 can be better covers the tip of long axle 8, plays pleasing to the eye effect. When the upright post 2 is upright, the long shaft 8 penetrates through the frame 1, the clamping section 9 is clamped into the bayonet 13, and the diameter of the clamping section 9 is larger than the arc diameter of the rail 7, so that the rail 7/the arc-shaped plate 4 can be prevented from rotating relative to the clamping section 9, and the effect of locking the arc-shaped plate 4/the upright post 2 is achieved; because the diameter of the unlocking section 10 is smaller than the arc diameter of the track 7, the unlocking section 10 on which the long shaft 8 moves is positioned in the bayonet 13 by pulling the knob 11, and the track 7/the arc-shaped plate 4 can rotate to the other bayonet 13 relative to the unlocking section 10, so that the upright post 2 is in a folded state. Because the bayonets 13 are arranged at the two ends of the track 7, after the upright post 2 is in a folded state, the clamping section 9 of the knob 11 is loosened to be clamped into the other bayonet 13 again, and the upright post 2 in the folded state is also locked.

Furthermore, locking Assembly still includes snap ring 14, is equipped with the circular slot on the joint section 9, and snap ring 14 blocks on the circular slot, and major axis 8 passes bayonet 13 and inserts and locate on frame 1, and snap ring 14 supports bayonet 13 edge. Among this technical scheme, the setting of snap ring 14 is for the axial displacement of restriction major axis 8, and the bore of bayonet 13 is greater than the diameter of joint section 9, though the tip of major axis 8 has knob 11 to guarantee can not throw off from bayonet 13 by major axis 8, but has the lag outside arc 4, and the snap ring can restrict major axis 8 and excessively move and make outside the lag 11 can expose the lag, is convenient for snatch, also prevents that knob 11 from colliding with stand 2 lower extreme and having wearing and tearing.

Further, on the frame 1, a shaft sleeve 15 is arranged below the rotating shaft 5, the long shaft 8 is inserted into the shaft sleeve 15, a fixed block 16 is arranged in the shaft sleeve 15 in an extending mode towards the rotating shaft 5, the arc-shaped plate 4 is sleeved on the upper end face of the rotating shaft 5 and clings to the shaft sleeve 15 and the fixed block 16, and the outer diameter of the snap ring 14 is larger than the caliber of the shaft sleeve 15. In the technical scheme, the long shaft 8 penetrates through the shaft sleeve 15, the arc-shaped plate 4 is attached to the shaft sleeve 15 and rotates with the fixed block 16, the attached area is larger, the arc-shaped plate 4 is prevented from swinging when rotating, and the rotation is smoother.

Furthermore, the locking assembly further comprises a spring 17, a clamping block 18 is screwed in the middle of the long shaft 8, and a shaft sleeve 19 is arranged on the inner wall of the side portion of the frame 1. The long shaft 8 penetrates through the shaft sleeve 19, the spring 17 is sleeved on the long shaft 8, one end of the spring abuts against the clamping block 18, and the other end of the spring abuts against the shaft sleeve 19. The long shaft 8 is axially moved along the shaft point B6 until the unlocking section 10 is in the bayonet 13 and the spring 17 is in a compressed state. In the technical scheme, after the knob 11 is pulled, the long shaft 8 moves, the spring 17 between the clamping block 18 and the clamping sleeve 19 is compressed and generates elasticity on the long shaft 8, the track 7/arc-shaped plate 4 rotates along the unlocking section 10 until the unlocking section 10 is positioned in the other bayonet 13, the knob 11 is loosened, and the clamping section 9 is clamped into the bayonet 13 again to lock the upright post 2 under the action of the elasticity of the spring.

Further, the joint of the clamping section 9 and the unlocking section 10 is a conical section 20, the long shaft 8 axially moves along a shaft point B6 until the unlocking section 10 is located in the bayonet 13, and the spring 17 is in a compressed state; when the spring 17 acts on the long shaft 8 to clamp the clamping section 9 into the bayonet 13, the tapered section 20 can prevent the end surface of the clamping section 9 from abutting against the edge of the bayonet 13, so that the clamping section 9 cannot be clamped into the bayonet 13. In the technical scheme, if the joint of the clamping section 9 and the unlocking section 10 does not have the conical section 20, the end surface of the clamping section 9 is in a circular shape and can possibly abut against the edge of the bayonet 13, so that the clamping section 9 cannot be clamped into the bayonet 13 for locking on the arc-shaped plate 4, and the inclined surface of the conical section 20 plays a role in guiding sliding, so that the clamping section 9 can more smoothly enter the bayonet 13 to lock the arc-shaped plate 4.

Furthermore, the lower end of the upright post 2 is fixedly provided with a protecting sleeve 21, the protecting sleeve 21 is covered outside the arc-shaped plate 4, the lower end of the protecting sleeve is provided with an arc opening 22, and the knob 11 is exposed outside the arc opening 22. In the technical scheme, the protective sleeve 21 is arranged to cover the arc-shaped plate 4 and the long shaft 8, so that the protective sleeve is attractive, the arc opening 22 is arranged corresponding to the track 7, and the arc opening 22/the protective sleeve 21 can rotate relative to the knob 11 conveniently.

Further, the fixed dog 23 that is equipped with of lateral wall of arc 4, wears to be equipped with the tight screw 25 in top on the dog 23, is equipped with fixed plate 24 on the frame 1, and pivot 5, axle sleeve 15 and fixed block 16 all set up on fixed plate 24, and when arc 4 and stand 2 rotated to stand 2 along pivot point B6 and are the upright state, the tip of the tight screw 25 in top withstood the lateral wall of fixed plate 24. In the technical scheme, the arrangement of the fixing plate 24 enables the rotating shaft 5, the shaft sleeve 15 and the fixing block 16 to be more stable, and the arrangement of the jacking screw 25 and the stop block 23 is to adjust the shaking amount of the upright post 2, and the tightness of the jacking screw 25 can be adjusted; when the upright post 2 is erected, the tightening screw 25 is screwed to adjust the gap between the tightening screw 25 and the side wall of the fixing plate 24 to the minimum and tightly press the tightening screw, so that the upright post 2 is prevented from shaking forwards and backwards. It should be noted that, when the upright column 2 is erected, the tightening screw 25 does not need to be adjusted again when the upright column folding function is subsequently used after adjusting and pressing the side wall of the fixing frame 24.

In addition, it should be further noted that the silencing sleeve 19 is sleeved on the rotating shaft 5 for reducing the gap sloshing and eliminating the sound.

In this embodiment, the treadmill is assembled as shown in fig. 6, the clamping section 9 of the long shaft 8 is clamped into the clamping opening 13 on the left side, the track 7/arc plate 4 cannot rotate relative to the clamping section 9, and the upright 2 is in the upright locking state.

Pulling knob 11 to make unlocking section 10 in bayonet 13 on left side, then arc 4/track 7 can rotate relative unlocking section 10, acts on stand 2 simultaneously to make stand 2 and arc 4 rotate relative axial point B6, and when unlocking section 10 is in bayonet 13 on right side, stand 2 is folding state, loosens knob 11, and bayonet section 9 is blocked in bayonet 13 on right side and locks stand 2 under folding state. If the upright post 2 needs to be erected again, the operation is repeated as above.

The column folding structure of the utility model has more convenient operation, can lock the column 2 in the folding state of the column 2, and has high practicability.

Example two:

a treadmill, comprising the pillar folding structure in the first embodiment.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.

Claims (9)

1. A column folding structure comprises a frame (1) and a column (2) arranged on the frame (1), wherein a running platform (3) is arranged on the frame (1); the method is characterized in that:

an arc-shaped plate (4) is fixedly arranged at the bottom of the upright post (2), a rotating shaft (5) is arranged on the frame (1), the upright post (2) and the arc-shaped plate (4) penetrate through the rotating shaft (5) and can be hinged with the rotating shaft (5), and a hinge point is a shaft point B (6);

the arc-shaped plate (4) is provided with a track (7), the track (7) is a section of arc with a shaft point B (6) as a circle center, a locking assembly penetrates through the track (7), the locking assembly at least comprises a long shaft (8), the long shaft (8) comprises a clamping section (9) and an unlocking section (10) with the diameter smaller than that of the clamping section (9); the long shaft (8) can axially move relative to the shaft point B (6);

when the clamping section (9) is positioned in the track (7), the clamping section (9) is locked relative to the arc-shaped plate (4); when the unlocking section (10) is positioned in the track (7), the arc-shaped plate (4) can rotate relative to the unlocking section (10);

when the arc-shaped plate (4) is locked by the long shaft (8), the upright post (2) is in an unfolded/folded state, and the upright post (2) is vertically/folded and fixed on the frame (1);

when the long shaft (8) axially moves relative to the shaft point B (6) to unlock the arc-shaped plate (4), the upright post (2) and the arc-shaped plate (4) rotate along the shaft point B (6) to be in a folding/vertical state, and the arc-shaped plate (4) simultaneously rotates along the unlocking section (10).

2. A pillar fold structure according to claim 1, wherein: the locking assembly further comprises a knob (11) fixed at the end of the long shaft (8); the track (7) comprises an arc section (12) and bayonets (13) which are arranged at two ends of the arc section (12) and have calibers larger than the arc diameter of the arc section (12), and the diameter of the clamping section (9) is smaller than the calibers of the bayonets (13); the diameter of the unlocking section (10) is smaller than the arc diameter of the arc section (12);

the long shaft (8) penetrates through the bayonet (13) and is inserted into the frame (1), and the clamping section (9) is positioned on the bayonet (13) and abuts against the communication position between the bayonet (13) and the arc section (12) to prevent the arc-shaped plate (4) from rotating relative to the long shaft (8); the upright post (2) is in an unfolded/folded state, and the upright post (2) is vertically/folded and fixed on the frame (1);

the long shaft (8) moves axially relative to the shaft point B (6), the unlocking section (10) is positioned in the bayonet (13), the arc section (12) can rotate relative to the unlocking section (10), and the arc plate (4) and the upright post (2) are rotated to be in a folding/vertical state along the shaft point B (6).

3. A pillar fold structure according to claim 2, wherein: the locking assembly further comprises a clamping ring (14), a circular groove is formed in the clamping section (9), the clamping ring (14) is clamped on the circular groove, the long shaft (8) penetrates through the bayonet (13) and is inserted into the frame (1), and the clamping ring (14) abuts against the edge of the bayonet (13).

4. A pillar fold structure according to claim 3, wherein: on frame (1), the below of pivot (5) is equipped with axle sleeve (15), major axis (8) insert in axle sleeve (15), axle sleeve (15) are equipped with fixed block (16) toward the direction extension of pivot (5), axle sleeve (15) and fixed block (16) are pasted to pivot (5) up end to arc (4) cover, the external diameter of snap ring (14) is greater than the bore of axle sleeve (15).

5. A pillar fold structure according to claim 3, wherein: locking assembly still includes spring (17), it is equipped with fixture block (18) to twist in the middle of major axis (8), be equipped with axle sleeve (15) on frame (1) lateral part inner wall, major axis (8) pass axle sleeve (15) set up, spring (17) cover is established on major axis (8), and one end supports fixture block (18), and the other end supports axle sleeve (15), major axis (8) are in bayonet socket (13) along axle point B (6) axial displacement to unlocking section (10), spring (17) are in compression state.

6. A pillar fold construction according to claim 5, wherein: the joint of the clamping section (9) and the unlocking section (10) is a conical section (20), the long shaft (8) axially moves to the unlocking section (10) along a shaft point B (6) and is positioned in the bayonet (13), and the spring (17) is in a compressed state; when spring (17) acted on major axis (8) and made joint section (9) block go into bayonet socket (13), conical surface section (20) can prevent that the terminal surface of joint section (9) from supporting on bayonet socket (13) edge, make joint section (9) can't block in bayonet socket (13).

7. A pillar fold structure according to claim 2, wherein: the lower end of the upright post (2) is fixedly provided with a protective sleeve (21), the protective sleeve (21) is covered outside the arc-shaped plate (4), the lower end of the protective sleeve is provided with an arc opening (22), and the knob (11) is exposed outside the arc opening (22).

8. A pillar fold construction according to claim 4, wherein: the fixed dog (23) that is equipped with of lateral wall of arc (4), wear to be equipped with tight screw in top (25) on dog (23), be equipped with fixed plate (24) on frame (1), pivot (5), axle sleeve (15) and fixed block (16) all set up on fixed plate (24), when arc (4) and stand (2) rotate to stand (2) along pivot point B (6) and are upright state, the lateral wall of tight screw in top (25) top tight fixed plate (24).

9. A treadmill, characterized by: comprising a pillar fold according to any one of claims 1 to 8.

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