CN115779338A

CN115779338A - Folding support of folding treadmill

Info

Publication number: CN115779338A
Application number: CN202211517454.7A
Authority: CN
Inventors: 王浩; 衡墩建
Original assignee: Jiangsu Jiayi Health Technology Co ltd
Current assignee: Jiangsu Jiayi Health Technology Co ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-03-14
Anticipated expiration: 2042-11-30
Also published as: CN115779338B

Abstract

The invention discloses a folding bracket of a folding type running machine, which relates to the technical field of running machines and comprises a running machine bracket, wherein a left adjusting groove and a right adjusting groove are respectively arranged at two opposite ends of the top surface of the running machine bracket, upright seats are respectively and movably arranged in the left adjusting groove and the right adjusting groove, a rotating folding assembly is arranged on the top surface of each upright seat, a left upright post and a right upright post are respectively arranged on the two rotating folding assemblies, a first walking wheel assembly is movably embedded in the side wall of the left upright post far away from the rotating folding assembly end and the side wall of the right upright post far away from the rotating folding assembly end, and a second walking wheel assembly is also movably arranged on two opposite side walls of the running machine bracket. The folding angle piece adjusting device has the advantages that the folding angle piece can be adjusted, the folding angle piece can be conveniently moved after being folded, and the like.

Description

Folding support of folding treadmill

Technical Field

The invention relates to the technical field of running machines, in particular to a folding support of a folding running machine.

Background

Along with the improvement of the living standard of people and the popularization of the national fitness exercise, the requirement of users on the running machine is increased more and more. The treadmill is a common fitness apparatus in daily life of people, and a running belt is driven by a motor to lead people to run or walk passively at different speeds. Wherein, folding treadmill more is applicable to indoor use, and its occupation space is less, receives liking of vast user deeply, but some prior treadmills when not using, and the occupation of land is great, puts the shortcoming that still exists area big to the less indoor long term of area, has folding inconvenient problem when treadmill support is actually folded promptly, and it is not convenient for remove after folding simultaneously.

Disclosure of Invention

In view of the technical deficiencies, the invention provides a folding bracket of a folding treadmill, which can adjust a folding angle member and is convenient to move after being folded.

In order to solve the technical problem, the invention provides a folding bracket of a folding type running machine, which comprises a running machine bracket, wherein a left adjusting groove and a right adjusting groove are respectively arranged at two opposite ends of the top surface of the running machine bracket, upright seats are respectively and movably arranged in the left adjusting groove and the right adjusting groove, a rotating folding assembly is arranged on the top surface of each upright seat, a left upright post and a right upright post are respectively arranged on the two rotating folding assemblies, a first walking wheel assembly is movably embedded in the side wall of the left upright post far away from the rotating folding assembly end and the side wall of the right upright post far away from the rotating folding assembly end, and a second walking wheel assembly is also movably arranged on two opposite side walls of the running machine bracket.

Preferably, the folding subassembly rotates including fixed column that sets up on stand seat top surface, the fixed regulation spheroid seat that is provided with of one end that the stand seat was kept away from to the fixed column, regulation spheroid seat internal rotation is provided with the regulation spheroid, the fixed axis of rotation that runs through on the regulation spheroid, be provided with left sliding tray and right sliding tray on two relative lateral walls wherein of regulation spheroid seat respectively, the both ends of axis of rotation activity respectively run through to the outside of left sliding tray and right sliding tray, the fixed positioning locking dish that is provided with on the lateral wall of fixed column, all be fixed with the locking bolt seat on left stand and the right stand, threaded connection has locking bolt on the locking bolt seat, locking bolt and positioning locking dish threaded connection, be convenient for through adjusting the spheroid in adjusting spheroid seat internal rotation, realize folding of left stand and right stand and accomodate or the angle modulation.

Preferably, all the activities of sliding tray and right sliding tray are provided with the locking lid, and swing joint between the both ends of axis of rotation and the corresponding locking lid respectively, the locking lid is including the axle sleeve lid that the activity set up in left sliding tray or right sliding tray outside, the axle sleeve lid is both ends open-ended hollow tubular structure, axle sleeve lid movable sleeve is established in the outside of axis of rotation, the one end that the adjusting ball seat was kept away from to the axle sleeve lid is rotated and is connected with lock nut one, the both ends of axis of rotation are external thread rod structure, threaded connection between lock nut one and the axis of rotation, along two inserted blocks of circumference equipartition on the periphery wall of axle sleeve lid, the inserted block activity is inserted and is established in left sliding tray or right sliding tray, through installing the locking lid in left sliding tray and right sliding tray, can play the certain spacing fixed action of left stand and right stand.

Preferably, the positioning and locking disc is of a disc-shaped structure, the axis of the positioning and locking disc is perpendicular to the central line of the locking bolt, a plurality of inner thread holes are uniformly distributed on the outer peripheral wall of the positioning and locking disc along the circumferential direction, the locking bolt corresponds to the outer peripheral wall of the locking bolt seat, the locking bolt is in threaded connection with the inner thread holes of the corresponding positions, after the left stand column and the right stand column are rotated to different positions, the locking bolt is in threaded connection with the inner thread holes of the corresponding positions, and the left stand column and the right stand column after rotation can be locked and fixed.

Preferably, all fixed sliding base that is provided with on the lateral wall of stand seat, and sliding base is located the outside of left adjustment tank or right adjustment tank respectively, the activity is provided with the connecting axle between two sliding base, the connecting axle activity runs through treadmill support and stand seat, the treadmill support, all be provided with the corresponding a plurality of through hole one in position and a plurality of through hole two on the opposition lateral wall of left adjustment tank and right adjustment tank, and the diameter of through hole one and through hole two all with the diameter looks adaptation of connecting axle, the connecting axle activity runs through hole one, and the both ends of connecting axle run through the through hole two of corresponding position, the equal swing joint in both ends of connecting axle has lock nut two, be convenient for can install the connecting axle in the through hole one and the through hole two of different positions as required.

Preferably, walking wheel subassembly one is including setting up the groove of accomodating on left stand or right stand lateral wall, the one end of accomodating the inslot and keeping away from the treadmill support is provided with the axis of rotation, it has the card frame to articulate through the pivot of taking the torsional spring in the axis of rotation, the interval is provided with clamp plate one and clamp plate two on the same lateral wall of card frame, the activity runs through on the clamp plate two is provided with clamp bolt, clamp bolt keeps away from the one end of clamp plate two and is provided with the slipmat, the one end of accomodating the groove is kept away from to the card frame is provided with gyro wheel one, walking wheel subassembly two includes the L shape support of connecting bolt swing joint on the lateral wall of treadmill support, it is provided with gyro wheel two to rotate on the perpendicular of L shape support, after taking in with left stand and right stand folding, can use gyro wheel one and two pairs of treadmill supports of gyro wheel, and be convenient for moving.

Preferably, the left side adjustment tank and the right adjustment tank are respectively corresponding to the left stand column and the right stand column, and the cover bodies matched with the left side adjustment tank and the right side adjustment tank are movably clamped on the openings of the top surfaces of the left side adjustment tank and the right side adjustment tank, so that one ends, far away from the stand column seat, of the left stand column and the right stand column can be respectively overturned and stored into the left adjustment tank and the right adjustment tank.

Preferably, the distance between the first clamping plate and the second clamping plate is larger than the height of the treadmill support, so that the left upright post and the right upright post can be respectively overturned and stored in the left adjusting groove and the right adjusting groove, and then are clamped on the treadmill support through the first clamping plate and the second clamping plate to be fixed.

The invention has the beneficial effects that: 1. according to the folding device, the left upright post and the right upright post can be conveniently folded and stored through the arranged rotating folding assembly, the angle of the folded upright post can be adjusted, and the operation is convenient; meanwhile, the folded treadmill can be moved conveniently under the matching use of the first walking wheel component and the second walking wheel component.

2. The positioning locking dish and the locking bolt seat that set up can be after rotating left stand and right stand to suitable position, and in the internal thread hole with the locking bolt threaded connection on the locking bolt seat on the corresponding position of positioning locking dish, can be so that the position of left stand and right stand is fixed, and then realize the angle modulation after folding left stand and right stand.

3. The walking wheel assembly I and the walking wheel assembly II are arranged, and the first clamping plate and the second clamping plate which are arranged in the walking wheel assembly I play a role in clamping the treadmill support, so that the first roller and the second roller can be matched to support the treadmill support on the ground, the treadmill support can be conveniently moved through the first roller and the second roller, and manpower is saved.

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 schematic structural view of a folding support of a foldable treadmill according to an embodiment of the present invention.

Fig. 2 is a schematic position diagram of a left adjusting groove and a right adjusting groove of a folding bracket of a folding treadmill according to an embodiment of the present invention.

Fig. 3 is a schematic view of the position of the rotating folding assembly of the folding bracket of the foldable treadmill according to the embodiment of the present invention.

Fig. 4 is a schematic diagram of a first clamping plate and a second clamping plate of a folding bracket of a folding treadmill according to an embodiment of the present invention.

Fig. 5 is a schematic view of a locking cover of a folding bracket of a foldable treadmill according to an embodiment of the present invention.

Fig. 6 is a schematic view of a rotating folding assembly of a folding frame of a foldable treadmill according to an embodiment of the present invention.

Fig. 7 is a schematic diagram of a position of a right sliding slot of a folding bracket of a foldable treadmill according to an embodiment of the present invention.

Fig. 8 is a schematic view of the rotary folding assembly of the present invention with two detent lock discs attached.

Description of the reference numerals: 1. a treadmill frame; 11. a left adjustment tank; 12. a right adjustment slot; 13. a left upright post; 14. a right upright post; 15. a cover body; 2. a column base; 21. a sliding base; 22. a connecting shaft; 23. a first through hole; 24. a second through hole; 3. rotating the folding assembly; 31. fixing a column; 32. adjusting the sphere seat; 33. adjusting the ball; 34. a rotating shaft; 35. a left sliding groove; 36. a right sliding groove; 37. positioning the locking disk; 371. an internally threaded hole; 38. locking the bolt seat; 381. locking the bolt; 39. a locking cover; 391. a shaft sleeve cover; 392. locking the first nut; 393. inserting a block; 4. a first traveling wheel assembly; 41. a storage groove; 42. a rotating shaft; 43. a clamping frame; 431. a first clamping plate; 432. a second clamping plate; 433. a hold-down bolt; 434. a non-slip mat; 44. a first roller; 5. a traveling wheel assembly II; 51. a connecting bolt; 52. an L-shaped bracket; 53. and a second roller.

Detailed Description

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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.

The first embodiment is as follows: as shown in fig. 1 to 2, the present invention provides a folding support for a foldable running machine, comprising a running machine support 1, wherein two opposite ends of the top surface of the running machine support 1 are respectively provided with a left adjustment groove 11 and a right adjustment groove 12, the left adjustment groove 11 and the right adjustment groove 12 are both movably provided with a column base 2, the top surface of the column base 2 is provided with a rotary folding assembly 3, the two rotary folding assemblies 3 are respectively provided with a left column 13 and a right column 14, a first walking wheel assembly 4 is movably embedded in the side wall of the left column 13 far away from the end of the rotary folding assembly 3 and the side wall of the right column 14 far away from the end of the rotary folding assembly 3, and a second walking wheel assembly 5 is also movably arranged on two opposite side walls of the running machine support 1; the positions of the left adjusting groove 11 and the right adjusting groove 12 correspond to the positions of the left upright post 13 and the right upright post 14 respectively, and the top openings of the left adjusting groove 11 and the right adjusting groove 12 are movably clamped with matched cover bodies 15.

By rotating the two rotating folding assemblies 3, the left upright 13 and the right upright 14 can be turned to different angle positions relative to the treadmill frame 1; the left upright post 13 and the right upright post 14 can be respectively contained in the left adjusting groove 11 and the right adjusting groove 12 after being folded, so that the integral volume of the folding bracket of the folding treadmill can be reduced; meanwhile, the folded bracket of the folding treadmill after turning, turning and folding can be moved through a first walking wheel component 4 and a second walking wheel component 5; when the folding bracket of the folding treadmill is used (namely, the left upright post 13 and the right upright post 14 are respectively turned to the outside of the left adjusting groove 11 and the right adjusting groove 12), the cover body 15 can be separately clamped and covered on the top surface openings of the left adjusting groove 11 and the right adjusting groove 12.

The outside of stand seat 2 and rotation folding assembly 3 still can be provided with the rubber protection cover to reduce the pile up of dust on stand seat 2 and the rotation folding assembly 3, can not interfere with the rubber protection cover when left stand 13 and right stand 14 overturn foldingly simultaneously.

Example two: on the basis of the first embodiment, as shown in fig. 1 to 3 and 5 to 8, the rotating and folding assembly 3 includes a fixed column 31 fixedly disposed on the top surface of the column base 2, an adjusting sphere base 32 is fixedly disposed at one end of the fixed column 31 far away from the column base 2, an adjusting sphere 33 is rotatably disposed in the adjusting sphere base 32, a rotating shaft 34 is fixedly disposed on the adjusting sphere 33 in a penetrating manner, a left sliding groove 35 and a right sliding groove 36 are respectively disposed on two opposite side walls of the adjusting sphere base 32, two ends of the rotating shaft 34 respectively movably penetrate through the left sliding groove 35 and the right sliding groove 36, a positioning locking disk 37 is fixedly disposed on the outer side wall of the fixed column 31, locking bolt bases 38 are fixedly disposed on the left column 13 and the right column 14, locking bolts 381 are threadedly connected to the locking bolt bases 38, and the locking bolts 381 are threadedly connected to the positioning locking disk 37; the locking covers 39 are movably arranged in the left sliding groove 35 and the right sliding groove 36, two ends of the rotating shaft 34 are respectively and movably connected with the corresponding locking covers 39, each locking cover 39 comprises a shaft sleeve cover 391 movably arranged outside the left sliding groove 35 or the right sliding groove 36, each shaft sleeve cover 391 is of a hollow tubular structure with two open ends, each shaft sleeve cover 391 is movably sleeved outside the rotating shaft 34, one end, far away from the adjusting ball seat 32, of each shaft sleeve cover 391 is rotatably connected with a locking nut 392, two ends of the rotating shaft 34 are both of an external thread rod structure, the locking nut 392 is in threaded connection with the rotating shaft 34, two insert blocks 393 are uniformly distributed on the outer peripheral wall of each shaft sleeve cover 391 along the circumferential direction, and the insert blocks 393 are movably inserted into the left sliding groove 35 or the right sliding groove 36; the positioning and locking disc 37 is of a disc-shaped structure, the axis of the positioning and locking disc 37 is perpendicular to the center line of the locking bolt 381, a plurality of internal thread holes 371 are uniformly distributed on the peripheral wall of the positioning and locking disc 37 along the circumferential direction, the locking bolt 381 corresponds to the peripheral wall of the locking bolt seat 38, and the locking bolt 381 is in threaded connection with the internal thread holes 371 at the corresponding position.

When the positions of the left upright 13 and the right upright 14 need to be adjusted (relative to the position between the treadmill support 1), the locking cover 39 can be taken down (the shaft sleeve cover 391 and the two insert blocks 393 thereof can be taken down from the two ends of the rotating shaft 34 by rotating the locking nut one 392, namely the locking cover 39 can be taken down from the left sliding groove 35 or the right sliding groove 36), then the left upright 13 and the right upright 14 are rotated towards the treadmill support 1, at this time, the adjusting ball 33 rotates in the adjusting ball seat 32, and simultaneously the two ends of the rotating shaft 34 move to self-adjust positions in the left sliding groove 35 and the right sliding groove 36 according to the rotating angles of the left upright 13 and the right upright 14, and after the left upright 13 and the right upright 14 are rotated to proper positions, the locking bolt 381 on the locking bolt seat 38 is screwed in the internal threaded holes of the corresponding positions, namely, the positions of the left upright 13 and the right upright 14 can be fixed.

Meanwhile, after the left upright column 13 and the right upright column 14 are turned over, whether the position of the adjusting sphere 33 in the adjusting sphere seat 32 is accurate (i.e. whether the two ends of the rotating shaft 34 are located in the middle of the left sliding groove 35 or the right sliding groove 36) is judged according to whether the two inserting blocks 393 on the same locking cover 39 can be inserted into the left sliding groove 35 or the right sliding groove 36, so as to ensure the accurate positions of the left upright column 13 and the right upright column 14; when the two inserting blocks 393 on the same locking cover 39 cannot be inserted into the left sliding groove 35 or the right sliding groove 36 at the same time, the rotating shaft 34 can be moved along the length direction of the left sliding groove 35 or the right sliding groove 36 to adjust the position, that is, the left upright post 13 or the right upright post 14 is rotated to drive the adjusting ball 33 to rotate, until the two inserting blocks 393 on the same locking cover 39 can be inserted into the left sliding groove 35 or the right sliding groove 36 at the same time.

As shown in fig. 8, two positioning locking discs 37 may be fixedly disposed on the outer side wall of the fixing column 31 at intervals along the circumferential direction, and the distance between the two positioning locking discs 37 may be made to be adapted according to the distance that one end of the rotating shaft 34 moves in the left sliding groove 35 or the right sliding groove 36 (moves along the length direction of the left sliding groove 35 or the right sliding groove 36),

at this time, when the distance between the left upright column 13 or the right upright column 14 is adjusted and rotated, the left upright column 13 and the right upright column 14 are in a parallel state, or the left upright column 13 and the right upright column 14 are in a splayed state (i.e., the adjusting sphere 33 is driven to rotate in the adjusting sphere seat 32 by rotating the left upright column 13 or the right upright column 14), the left upright column 13 and the right upright column 14 can still be fixed in the corresponding positions of the internal thread holes 371 through the threaded connection of the locking bolt 381 on the locking bolt seat 38.

Example three: on the basis of the first embodiment, as shown in fig. 1 to 2, sliding bases 21 are fixedly arranged on the side walls of the upright post base 2, the sliding bases 21 are respectively located outside the left adjusting groove 11 or the right adjusting groove 12, a connecting shaft 22 is movably arranged between the two sliding bases 21, the connecting shaft 22 movably penetrates through the treadmill support 1 and the upright post base 2, a plurality of through holes one 23 and a plurality of through holes two 24 are arranged on the treadmill support 1, the left adjusting groove 11 and the right adjusting groove 12, the through holes one 23 and the through holes two 24 are matched with the diameter of the connecting shaft 22, the connecting shaft 22 movably penetrates through the through holes one 23, the two ends of the connecting shaft 22 penetrate through the through holes two 24 at corresponding positions, and the two ends of the connecting shaft 22 are movably connected with locking nuts two; the length direction of left adjustment tank 11 and right adjustment tank 12 is parallel, and through hole one 23 and through hole two 24 all distribute along the length direction of left adjustment tank 11 or right adjustment tank 12, can be as required according to the use, slide the position of regulation stand seat 2 in left adjustment tank 11 and right adjustment tank 12, again run through treadmill support 1 and stand seat 2 with connecting axle 22, make the both ends of connecting axle 22 insert respectively in through hole one 23 and through hole two 24 on left adjustment tank 11, and in through hole one 23 and through hole two 24 on right adjustment tank 12, reuse lock nut two to fasten, so that fix left stand 13 and right stand 14 and use in different positions.

Example four: on the basis of the first embodiment, as shown in fig. 1 to 4, the first walking wheel assembly 4 includes an accommodating groove 41 formed in a side wall of the left upright 13 or the right upright 14, a rotating shaft 42 is disposed at an end of the accommodating groove 41 away from the treadmill frame 1, a clamping frame 43 is hinged to the rotating shaft 42 through a rotating shaft with a torsion spring, a first clamping plate 431 and a second clamping plate 432 are disposed at intervals on the same side wall of the clamping frame 43, a pressing bolt 433 is movably disposed on the second clamping plate 432 in a penetrating manner, a non-slip mat 434 is disposed at an end of the pressing bolt 433 away from the second clamping plate 432, a first roller 44 is disposed at an end of the clamping frame 43 away from the accommodating groove 41, the second walking wheel assembly 5 includes an L-shaped bracket 52 movably connected to the side wall of the treadmill frame 1 through a connecting bolt 51, and a second roller 53 is rotatably disposed at a vertical end of the L-shaped bracket 52; the distance between the first clamping plate 431 and the second clamping plate 432 is larger than the height of the treadmill frame 1, so that the left upright column 13 and the right upright column 14 can be conveniently clamped on the treadmill frame 1 through the first clamping plate 431 and the second clamping plate 432 after being respectively overturned and accommodated in the left sliding groove 35 and the right sliding groove 36.

When the clamping frame 43 is turned out from the accommodating groove 41 by taking the rotating shaft 42 as an axis, and the left upright post 13 and the right upright post 14 are turned and folded, one ends of the left upright post 13 and the right upright post 14 far away from the upright post seat 2 are respectively accommodated in the left adjusting groove 11 and the right adjusting groove 12; meanwhile, when the clamping frame 43 is turned out from the accommodating groove 41, the clamping frame 43 is rotated under the action of the rotating shaft with the torsion spring, so that the first clamping plate 431 and the second clamping plate 432 face the direction of the treadmill frame 1, at the moment, the clamping frame 43 is rotated by taking the rotating shaft 42 as the direction of the axial treadmill frame 1, so that the treadmill frame 1 is positioned between the first clamping plate 431 and the second clamping plate 432, the anti-skid pad 434 is extruded with the treadmill frame 1 by rotating and adjusting the pressing bolt 433 (the first clamping plate 431 can be simultaneously provided with the pressing bolt 433 and the anti-skid pad 434, so that the clamping firmness of the first clamping plate 431 and the second clamping plate 432 clamped on the treadmill frame 1 is improved by simultaneous adjustment), and at the moment, the first roller 44 is positioned below the treadmill frame 1; meanwhile, after the connecting bolt 51 is loosened, the L-shaped bracket 52 is rotated to enable the second roller 53 and the first roller 44 to be located on the same plane, so that the treadmill bracket 1 can be supported on the ground through the first roller 44 and the second roller 53, the treadmill bracket 1 can be conveniently moved through the first roller 44 and the second roller 53, and manpower is saved.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a folding support of foldable treadmill, a serial communication port, including treadmill support (1), the opposition both ends of treadmill support (1) top surface are provided with left adjustment tank (11) and right adjustment tank (12) respectively, it is provided with stand seat (2) all to move about in left adjustment tank (11) and right adjustment tank (12), be provided with on the top surface of stand seat (2) and rotate folding subassembly (3), be provided with left stand (13) and right stand (14) respectively on two rotation folding subassemblies (3), it is equipped with walking wheel subassembly (4) all to move about in the lateral wall that rotation folding subassembly (3) end and right stand (14) were kept away from to rotation folding subassembly (3) end in left stand (13), still all move about on two relative lateral walls wherein of treadmill support (1) and be provided with walking wheel subassembly two (5).

2. The folding bracket for the folding type treadmill according to claim 1, wherein the rotating folding assembly (3) comprises a fixed column (31) fixedly disposed on the top surface of the upright seat (2), an adjusting sphere seat (32) is fixedly disposed on one end of the fixed column (31) far away from the upright seat (2), an adjusting sphere (33) is rotatably disposed in the adjusting sphere seat (32), a rotating shaft (34) is fixedly disposed on the adjusting sphere (33) in a penetrating manner, a left sliding groove (35) and a right sliding groove (36) are respectively disposed on two opposite side walls of the adjusting sphere seat (32), two ends of the rotating shaft (34) respectively movably penetrate through the left sliding groove (35) and the right sliding groove (36), a positioning locking plate (37) is fixedly disposed on the outer side wall of the fixed column (31), a locking bolt seat (38) is fixedly disposed on each of the left upright column (13) and the right upright column (14), a locking bolt (381) is threadedly connected to the locking bolt seat (38), and the locking bolt (381) is threadedly connected to the positioning locking plate (37).

3. The folding bracket of a folding treadmill according to claim 2, wherein the left sliding groove (35) and the right sliding groove (36) are movably provided with locking covers (39), and both ends of the rotating shaft (34) are movably connected with the corresponding locking covers (39), the locking covers (39) comprise shaft sleeve covers (391) movably arranged outside the left sliding groove (35) or the right sliding groove (36), the shaft sleeve covers (391) are hollow tubular structures with openings at both ends, the shaft sleeve covers (391) are movably sleeved outside the rotating shaft (34), one end of the shaft sleeve cover (391) far away from the adjusting ball seat (32) is rotatably connected with a locking nut (392), both ends of the rotating shaft (34) are of external thread rod structures, the locking nut (392) is in threaded connection with the rotating shaft (34), two inserts (393) are circumferentially distributed on the outer circumferential wall of the shaft sleeve cover (391), and the inserts (393) are movably inserted in the left sliding groove (35) or the right sliding groove (36).

4. The folding frame of a foldable treadmill as claimed in claim 2, wherein the positioning and locking plate (37) is a disk-shaped structure, the axis of the positioning and locking plate (37) is perpendicular to the center line of the locking bolt (381), a plurality of female screw holes (371) are uniformly distributed on the outer peripheral wall of the positioning and locking plate (37) along the circumferential direction, the locking bolt (381) corresponds to the outer peripheral wall of the locking bolt seat (38), and the locking bolt (381) is in threaded connection with the corresponding female screw holes (371).

5. The folding bracket of the folding treadmill according to claim 1, wherein the side walls of the upright post base (2) are fixedly provided with sliding bases (21), the sliding bases (21) are respectively located outside the left adjusting groove (11) or the right adjusting groove (12), a connecting shaft (22) is movably arranged between the two sliding bases (21), the connecting shaft (22) movably penetrates through the treadmill bracket (1) and the upright post base (2), opposite side walls of the treadmill bracket (1), the left adjusting groove (11) and the right adjusting groove (12) are respectively provided with a plurality of first through holes (23) and a plurality of second through holes (24) corresponding in position, the diameters of the first through holes (23) and the second through holes (24) are respectively matched with the diameter of the connecting shaft (22), the connecting shaft (22) movably penetrates through the first through holes (23), and two ends of the connecting shaft (22) penetrate through the second through holes (24) corresponding in position, and two ends of the connecting shaft (22) are respectively movably connected with a locking nut.

6. The folding bracket of a folding treadmill according to claim 1, wherein the first walking wheel assembly (4) comprises an accommodating groove (41) formed in a side wall of the left upright (13) or the right upright (14), a rotating shaft (42) is arranged at one end of the accommodating groove (41) far away from the treadmill bracket (1), a clamping frame (43) is hinged to the rotating shaft (42) through a rotating shaft with a torsion spring, a first clamping plate (431) and a second clamping plate (432) are arranged on the same side wall of the clamping frame (43) at intervals, a pressing bolt (433) is movably arranged on the second clamping plate (432) in a penetrating manner, an anti-skid pad (434) is arranged at one end of the pressing bolt (433) far away from the second clamping plate (432), a first roller (44) is arranged at one end of the clamping frame (43) far away from the accommodating groove (41), the second walking wheel assembly (5) comprises an L-shaped bracket (52) movably connected to the side wall of the treadmill bracket (1) through a connecting bolt (51), and a second roller (53) is rotatably arranged at a vertical end of the L-shaped bracket (52).

7. The folding support for a foldable treadmill of claim 1, wherein the left adjustment slot (11) and the right adjustment slot (12) are positioned to correspond to the left upright (13) and the right upright (14), respectively, and the top openings of the left adjustment slot (11) and the right adjustment slot (12) are movably clamped with the corresponding covers (15).

8. A folding treadmill frame as recited in claim 6, characterised in that the distance between the first clamping plate (431) and the second clamping plate (432) is greater than the height of the treadmill frame (1).