CN108853897B

CN108853897B - Folding running machine

Info

Publication number: CN108853897B
Application number: CN201810649344.3A
Authority: CN
Inventors: 刘德纯
Original assignee: K Star Sports Co ltd
Current assignee: K Star Sports Co ltd
Priority date: 2018-06-22
Filing date: 2018-06-22
Publication date: 2020-08-11
Anticipated expiration: 2038-06-22
Also published as: CN108853897A

Abstract

The invention discloses a folding treadmill, which relates to the field of sports equipment, and adopts the technical scheme that: comprises a frame and a support rod; the support rod is rotatably connected with the rack; the rack is rotatably connected with a connecting rod, one end of the connecting rod is provided with a pedal, and the supporting rod is fixedly provided with a limiting piece clamped with the other end of the connecting rod; a return spring for enabling the connecting rod to be abutted against the limiting piece is connected between the connecting rod and the rack; when the pedal is stepped on, the rotating connection position of the connecting rod on the frame is taken as a fulcrum, the other end of the connecting rod is upwarped to be separated from the contact with the limiting piece, the reset spring is further pulled, and the supporting rod is in a rotatable state at the moment, so that the folding and folding effects are achieved; meanwhile, the whole folding mechanism comprises four parts, namely a connecting rod, a limiting part, a pedal and a return spring, so that the number of movable parts is reduced, and the folding mechanism has the characteristics of simple structure and reliable and stable action.

Description

Folding running machine

Technical Field

The invention relates to the field of sports equipment, in particular to a folding treadmill.

Background

An electric treadmill, called treadmill for short, is a gymnasium and a household fitness apparatus, and enables a person to run or walk passively at different speeds by driving a running belt through a motor. Since running and walking are passively formed, the appearance of the action is almost the same as that of ordinary running or walking on the ground.

The patent of the Chinese utility model with the publication number of CN206979928U discloses a treadmill with a folding upright post, which comprises a base and an upright post component arranged at one end of the base, wherein the upright post component comprises an upright post which is rotatably connected with the base; the method is characterized in that: the stand assembly also includes a folding assembly including a stator coupled to the stand for rotation therewith and a stationary shaft coupled to the base, the stationary shaft being selectively positionable with the stator in two positions such that the stand is in an extended position or a folded position relative to the base. Wherein, the folding component comprises a handle, a steel cable, a fixing piece and a fixing shaft; the folding component is mostly hidden in the shell, and only the trigger of the handle is exposed out of the shell. The end of the trigger is connected with one end of a steel cable, and the other end of the steel cable is connected to the first end of the fixed shaft. The fixing sheet is provided with a first positioning hole and a second positioning hole, the first positioning hole and the second positioning hole are positioned on the same circumference, and the central angle between the first positioning hole and the second positioning hole can be set according to requirements, such as 80 degrees. Or more than two positioning holes can be formed in the fixing plate, so that the upright post can be positioned at more than two positions.

The folding mechanism of the treadmill enables the upright post to be folded, but the part structure of the mechanism is complex, and some structural components are small, so the reliability is poor.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a folding treadmill, and the folding mechanism of the folding treadmill is simpler and more reliable.

In order to achieve the purpose, the invention provides the following technical scheme:

a folding treadmill comprises a frame and a support rod; the support rod is rotatably connected with the rack; the rack is rotatably connected with a connecting rod, the middle part of the connecting rod is rotatably connected to the rack, one end of the connecting rod is provided with a pedal, and the supporting rod is fixedly provided with a limiting part clamped with the other end of the connecting rod; a reset spring used for enabling the connecting rod to be abutted against the limiting piece is connected between the connecting rod and the rack, a kidney-shaped groove is formed in the connecting rod, a rotation stopping column penetrating through the kidney-shaped groove is arranged on the rack, a limiting groove is formed in the limiting piece, and a limiting shaft used for being clamped with the limiting groove is arranged at one end, far away from the pedal, of the connecting rod; the limiting piece is also provided with a positioning groove which is clamped with the limiting shaft after the supporting rod is folded and is arranged in an arc shape; the limiting groove and the positioning groove are respectively located at two ends of the upper side of the limiting part, the positioning groove is far away from the pedal, the limiting groove is close to the pedal, and the kidney-shaped groove is located between the limiting groove and the pedal.

When the pedal is stepped on, the rotating connection position of the connecting rod on the frame is taken as a fulcrum, the other end of the connecting rod upwarps to be separated from the contact with the limiting piece, the reset spring is further pulled, and the supporting rod is in a rotatable state at the moment, so that the folding and folding effects are achieved; meanwhile, the whole folding mechanism comprises four parts, namely a connecting rod, a limiting part, a pedal and a return spring, the number of movable parts is reduced, and the folding mechanism has the characteristics of simple structure and reliable and stable action, wherein when the connecting rod rotates, the rotation stopping column relatively moves in the kidney-shaped groove, when the rotation stopping column is abutted against the circumferential inner walls at the two ends of the kidney-shaped groove, the limiting shaft is just clamped into the limiting groove and is abutted against the inner side wall of the limiting groove, or just leaves the limiting groove, so that the supporting rod can be accurately folded, wherein the limiting shaft is clamped into the limiting groove, so that the connecting rod is used for limiting the rotation of the limiting part, and the limiting part is fixedly connected with the supporting rod, so that the positioning and fixing effects are realized when the supporting; through establishing the constant head tank additional, for playing the positioning action when closing the bracing piece, thereby guarantee that the bracing piece is at every turn expanded and the position when closing is accurate stable, improves folding mechanism's reliability.

Further setting: a hanging hole is formed in the rack, a hanging shaft is arranged between the middle position of the connecting rod and the pedal, and an annular groove is formed in the peripheral wall of the hanging shaft; the two ends of the reset spring are both arranged in a hook shape, one end of the reset spring penetrates through the hanging hole, and the other end of the reset spring is clamped into the annular groove.

So set up for reset spring can fix between frame and connecting rod, and reset spring's the installation of being convenient for simultaneously is torn open and is traded.

Further setting: the pedal comprises a short shaft and a shaft sleeve; the short shaft is fixedly connected with the connecting rod, and the shaft sleeve is in threaded connection with the short shaft.

Due to the arrangement, the cylindrical shaft sleeve is convenient for foot treading and stress, so that the force application direction can be in the tangential direction when the force application direction makes circular motion around the connecting rod rotation joint along the short shaft as far as possible, and the effect of saving labor is achieved; meanwhile, the shaft sleeve is detachably connected to the short shaft, so that the shaft sleeve can be replaced quickly after being damaged.

Further setting: the bottom of the rack is rotatably connected with a support frame; the supporting rod is rotatably connected with a handrail.

By the arrangement, the supporting frame is additionally arranged, so that when the treadmill is erected and stored, supporting points on the ground are increased by the supporting frame, and the stability of the erected treadmill is ensured; through additionally arranging the handrail, a user can more comfortably grasp the stable supporting rod, and the man-machine effect is improved.

Further setting: positioning parts are arranged at the bottom of the rack and on the supporting rod, and positioning shafts which are clamped with the positioning parts and keep the supporting rack and the handrail in an unfolded or folded state are arranged on the supporting frame and the handrail in a penetrating manner; springs which are abutted against the positioning shaft and enable the positioning shaft to be clamped with the positioning piece are arranged in the support frame and the handrail.

Due to the arrangement, the support frame and the handrail can be unfolded and folded like the support rod, so that the occupied space of the treadmill during storage is further reduced; meanwhile, the connecting position of the support frame is ensured to be loosened in the using process of the treadmill, and the reliability and the stability of the structure are ensured.

Further setting: each positioning piece is provided with two semicircular grooves for clamping the positioning shaft so as to correspond to two states when the support frame or the handrail is unfolded or folded.

So set up, go into the half slot through the location axle card for support frame and handrail can pinpoint when expansion and receipts are closed, guarantee support frame and handrail remain stable when the atress.

Further setting: one end of the positioning shaft inserted into the supporting frame or the handrail inner cavity is provided with an end head abutted against the supporting frame or the handrail inner wall; and the end surface of the end head is axially provided with a mounting hole, one end of the spring is inserted into the mounting hole, and the other end of the spring is abutted against the inner wall of the support frame or the handrail.

According to the arrangement, the supporting frame and the handrail can rotate after the positioning shaft is separated from the positioning piece by pressing the positioning shaft; meanwhile, the arrangement of the spring ensures that the positioning shaft can be automatically clamped into the semicircular groove after the support frame or the handrail is rotated, so that the support frame and the handrail can be fixed conveniently.

Further setting: the supporting rod is provided with a panel, the panel is inserted with a supporting plate, the upper edge of the supporting plate is provided with a clamping plate, and the lower edge of the supporting plate is provided with a clamping groove.

The arrangement is convenient for clamping personal articles such as mobile phones or wallets and the like on the resisting plate, and the man-machine effect of the treadmill is improved.

In conclusion, the invention has the following beneficial effects:

1. the folding structure of the folding treadmill has few parts, is simple and reliable and is convenient to operate;

2. the folding treadmill can be prevented from standing after being folded, and has stable structure and difficult toppling;

3. the folding treadmill has good man-machine effect and comfortable use.

Drawings

FIG. 1 is a schematic view of the overall structure of a folding treadmill;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is a partial schematic view of the folding treadmill;

FIG. 4 is an enlarged view at B in FIG. 3;

FIG. 5 is an enlarged view at C of FIG. 3;

FIG. 6 is a schematic view of the positioning shaft and spring in the support frame or armrest;

fig. 7 is a schematic structural view of a panel and a supporting plate.

In the figure: 1. a frame; 2. a support bar; 3. a connecting rod; 4. pedaling; 41. a minor axis; 42. a shaft sleeve; 5. a limiting member; 6. a return spring; 7. a kidney-shaped groove; 8. a rotation stopping column; 9. a limiting groove; 10. a limiting shaft; 11. positioning a groove; 12. hanging holes; 13. hanging a shaft; 14. an annular groove; 15. a support frame; 16. a handrail; 17. a positioning member; 18. positioning the shaft; 19. a spring; 20. a semicircular groove; 21. a tip; 22. mounting holes; 23. a panel; 24. a resisting plate; 25. clamping a plate; 26. a card slot; 27. riveting; 28. a non-slip mat; 29. fixing the rod; 30. a clamping hole; 31. a clamping block; 32. an elastic button; 33. and a roller.

Detailed Description

The folding treadmill will be further described with reference to fig. 1 to 7.

A folding treadmill, as shown in fig. 1, includes a frame 1, a support bar 2, a support frame 15, and a handrail 16. Wherein, the bottom of the frame 1 is provided with a roller 33 near the front end to facilitate dragging; the support rod 2 is arranged in a U shape, the middle part of the support rod is provided with a panel 23, and two ends of the support rod 2 are rotatably connected to two sides of the rack 1 close to the front end; the armrest 16 is pivotally connected to both sides of the support bar 2 adjacent to the panel 23. The supporting frame 15 is also U-shaped, and with reference to fig. 3, a fixing rod 29 is disposed at the bottom of the frame 1 near the front end, two ends of the supporting frame 15 are rotatably connected to the fixing rod 29, and a non-slip mat 28 contacting the ground is sleeved in the middle of the supporting frame 15.

With reference to fig. 3, 4 and 5, two ends of the support rod 2 are bent inward by 90 degrees and then hinged to the frame 1, and a sheet-shaped limiting member 5 is disposed at the bent position. The connecting rod 3 is rotatably connected to the rack 1, specifically, the middle of the connecting rod 3 is hinged to the rack 1 through a rivet 27, the connecting rod 3 is abutted to the side wall of the rack 1, one end of the connecting rod is clamped with the limiting part 5, and the other end of the connecting rod is provided with a pedal 4 extending outwards. A return spring 6 for abutting the link 3 against the stopper 5 is connected to the upper edge of the frame 1 between the hinge portion of the link 3 and the pedal 4.

With reference to fig. 3, 4 and 5, specifically, a limiting groove 9 is formed on the limiting member 5, and a limiting shaft 10 for being clamped with the limiting groove 9 to keep the supporting rod 2 unfolded is disposed at one end of the connecting rod 3 away from the pedal 4; the limiting part 5 is further provided with a positioning groove 11 which is clamped with the limiting shaft 10 after the supporting rod 2 is folded and is arranged in an arc shape. A hanging hole 12 is arranged on the upper edge of the frame 1, a hanging shaft 13 is fixed between the hinged part of the connecting rod 3 and the pedal 4, and an annular groove 14 is arranged on the peripheral wall of the hanging shaft 13; the two ends of the reset spring 6 are both arranged in a hook shape, one end of the reset spring passes through the hanging hole 12, the other end of the reset spring is clamped into the annular groove 14, and the reset spring 6 is always kept in a tension state. The pedal 4 comprises a short shaft 41 and a shaft sleeve 42, the short shaft 41 is fixedly connected with the connecting rod 3, and the shaft sleeve 42 is provided with anti-skid threads and is in threaded connection with the short shaft 41.

Referring to fig. 4, in order to accurately limit the rotation angle of the connecting rod 3, a kidney-shaped groove 7 is formed in the connecting rod 3, and a rotation stopping column 8 penetrating through the kidney-shaped groove 7 is arranged on the frame 1. When the rotation stopping column 8 is abutted to the circumferential inner walls at the two ends of the kidney-shaped groove 7, the limiting shaft 10 is just clamped into the limiting groove 9 and is abutted to the inner side wall of the limiting groove, or just leaves the limiting groove 9, so that the supporting rod 2 can be precisely folded.

As an optimization, referring to fig. 2 and 5, the fixing rod 29 and the supporting rod 2 are both provided with a sheet-shaped positioning member 17, and the supporting frame 15 and the armrest 16 are both provided with a positioning shaft 18 which is engaged with the positioning member 17 to keep the two in an unfolded or folded state. Specifically, a semicircular groove 20 for engaging the positioning shaft 18 is formed in the positioning member 17, and as shown in fig. 6, a spring 19 is provided in the support frame 15 and the armrest 16 to abut against the positioning shaft 18 and keep the positioning shaft 18 engaged with the positioning member 17. Wherein, one end of the positioning shaft 18 inserted into the inner cavity of the support frame 15 or the handrail 16 is provided with an end head 21 abutted against the inner wall of the support frame 15 or the handrail 16, and the other end of the positioning shaft 18 is rounded. An end face of the end head 21 is provided with an installation hole 22 along the axial direction, one end of the spring 19 is inserted into the installation hole 22, and the other end abuts against the inner wall of the support frame 15 or the armrest 16.

As a further optimization, with reference to fig. 7, a resisting plate 24 is inserted into the upper edge of the panel 23, a clamping plate 25 is disposed on the upper edge of the resisting plate 24, a clamping groove 26 is disposed on the lower edge of the resisting plate 24, and both the clamping plate 25 and the clamping groove 26 have certain elasticity, so as to be conveniently clamped into a personal belonging such as a mobile phone or a wallet. Specifically, the upper edge of the panel 23 is provided with a mounting groove into which the abutting plate 24 is inserted, the inner side wall of the mounting groove is provided with a clamping hole 30, and the end surface of the bottom plate is provided with an elastic button 32 and a clamping block 31 linked with the elastic button 32; after the support plate 24 is inserted into the mounting groove, the latch 31 is locked into the latch hole 30 to fix the bottom plate, and after the elastic button 32 is pressed, the latch 31 is separated from the latch hole 30 to pull out the bottom plate.

The folding and unfolding process of the folding treadmill comprises the following steps: the positioning shaft 18 on the armrest 16 is pressed to pull the armrest 16 downward until the positioning shaft 18 is snapped into the semicircular groove 20. Then the pedal 4 is treaded down, after the limiting shaft 10 is separated from the limiting groove 9, the support rod 2 is folded downwards until the limiting shaft 10 is clamped with the positioning groove 11. The frame 1 is turned upwards, the positioning shaft 18 on the support frame 15 is pressed, and the folded support frame 15 is unfolded until the positioning shaft 18 is clamped in the semicircular groove 20. The folding treadmill is then placed upright with the support frame 15 and the front end of the frame as the bottom. When the folding treadmill is to be used, the positioning shaft 18 of the support frame 15 is pressed to retract the support frame 15 until the positioning shaft 18 is snapped into the semicircular groove 20. Then the frame 1 is put down, and the support rod 2 is turned upwards until the limit shaft 10 is clamped with the limit groove 9. The positioning shaft 18 on the handrail 16 is pressed, and the handrail 16 is pulled upwards and unfolded until the positioning shaft 18 is clamped into the semicircular groove 20.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims

1. A folding treadmill comprises a frame (1) and a support rod (2); the support rod (2) is rotatably connected with the rack (1); the method is characterized in that: the rack (1) is rotatably connected with a connecting rod (3), the middle part of the connecting rod (3) is rotatably connected to the rack (1), one end of the connecting rod (3) is provided with a pedal (4), and the support rod (2) is fixedly provided with a limiting piece (5) which is clamped with the other end of the connecting rod (3); a return spring (6) used for enabling the connecting rod (3) to be abutted against the limiting piece (5) is connected between the connecting rod (3) and the rack (1), a kidney-shaped groove (7) is formed in the connecting rod (3), a rotation stopping column (8) penetrating through the kidney-shaped groove (7) is arranged on the rack (1), a limiting groove (9) is formed in the limiting piece (5), and a limiting shaft (10) used for being clamped with the limiting groove (9) is arranged at one end, far away from the pedal (4), of the connecting rod (3); the limiting piece (5) is also provided with a positioning groove (11) which is clamped with the limiting shaft (10) after the supporting rod (2) is folded and is arranged in an arc shape; the limiting groove (9) and the positioning groove (11) are respectively located at two ends of the upper side of the limiting part (5), the positioning groove (11) is far away from the pedal (4), the limiting groove (9) is close to the pedal (4), and the kidney-shaped groove (7) is located between the limiting groove (9) and the pedal (4).

2. The folding treadmill of claim 1, wherein: a hanging hole (12) is formed in the rack (1), a hanging shaft (13) is arranged between the position where the connecting rod (3) is rotatably connected with the rack (1) and the pedal (4), and an annular groove (14) is formed in the peripheral wall of the hanging shaft (13); the two ends of the reset spring (6) are arranged in a hook shape, one end of the reset spring penetrates through the hanging hole (12), and the other end of the reset spring is clamped into the annular groove (14).

3. The folding treadmill of claim 1, wherein: the pedal (4) comprises a short shaft (41) and a shaft sleeve (42); the short shaft (41) is fixedly connected with the connecting rod (3), and the shaft sleeve (42) is in threaded connection with the short shaft (41).

4. The folding treadmill of claim 1, wherein: the bottom of the frame (1) is rotatably connected with a support frame (15); a handrail (16) is rotatably connected on the supporting rod (2).

5. The folding treadmill of claim 4, wherein: positioning parts (17) are arranged at the bottom of the rack (1) and on the support rod (2), and positioning shafts (18) which are clamped with the positioning parts (17) and keep the support frame (15) and the handrail (16) in an unfolded or folded state are arranged on the support frame and the handrail in a penetrating manner; and springs (19) which are abutted against the positioning shafts (18) and enable the positioning shafts (18) and the positioning pieces (17) to be clamped are arranged in the support frame (15) and the handrail (16).

6. The folding treadmill of claim 5, wherein: each positioning piece (17) is provided with two semicircular grooves (20) for clamping the positioning shaft (18) so as to correspond to two states when the support frame (15) or the handrail (16) is unfolded or folded.

7. The folding treadmill of claim 6, wherein: one end of the positioning shaft (18) inserted into the inner cavity of the support frame (15) or the handrail (16) is provided with an end head (21) abutted against the inner wall of the support frame (15) or the handrail (16); an installation hole (22) is formed in the end face of the end head (21) along the axial direction, one end of the spring (19) is inserted into the installation hole (22), and the other end of the spring abuts against the inner wall of the support frame (15) or the armrest (16).

8. The folding treadmill of claim 1, wherein: the supporting rod (2) is provided with a panel (23), the panel (23) is inserted with a supporting plate (24), the upper edge of the supporting plate (24) is provided with a clamping plate (25), and the lower edge of the supporting plate (24) is provided with a clamping groove (26).