CN116099163A - Buffer type running machine with adjustable running table angle - Google Patents

Abstract

The invention relates to the field of treadmills, and discloses a buffer type treadmill with an adjustable running platform angle, which comprises a base, a running platform hinged on the base and an angle adjusting mechanism arranged between the running platform and the base, wherein the angle adjusting mechanism comprises a lifting arm hinged on the lower end surface of the running platform, a moving rod guided to move along the length direction of the moving rod on a fixed seat and a driving mechanism driving the moving rod to move, a locking mechanism for locking the moving rod and the fixed seat is arranged between the moving rod and the fixed seat, a stretchable or contractible buffer mechanism is hinged on the running platform, an air charging and discharging mechanism is arranged in the base, the air charging and discharging mechanism charges or discharges air into the buffer mechanism and is controlled by the movement of a piston driving rod arranged in the base, a labor-saving pulley block is arranged among the piston driving rod, the moving rod and the lifting arm, along with the movement of the moving rod, the running platform angle is adjusted, the buffer mechanism is self-adaptively stretched or contracted to adapt to the running platform with the angle adjusted, and the running platform has the advantages of adjustable angle and good buffering performance and labor saving.

Description

Buffer type running machine with adjustable running table angle

Technical Field

The invention relates to the field of treadlemill, in particular to a buffer type treadlemill with an adjustable running table angle.

Background

The adjustment mode of the running table angle is divided into manual operation and electric operation, the electric operation mode is more intelligent and labor-saving, chinese patent publication No. CN102319504B discloses a lifting mechanism of the running machine, which comprises a base and a running table lifting seat which is lifted relative to the base, a stepping motor is fixed on the running table lifting seat, the stepping motor is connected with a worm gear and a worm gear which are arranged on the running table lifting seat through a synchronous belt, the worm gear and the worm gear are connected with a trapezoidal screw rod which is arranged on the running table lifting seat through another synchronous belt, and a trapezoidal nut is arranged on the trapezoidal screw rod and is fixed on a lifting slide plate; the lifting slide plate realizes guiding movement with the running platform lifting seat through two linear guide rails fixed on the running platform lifting seat, a running platform fixing plate is fixed between the linear guide rails and the running platform lifting seat, the stepping motor drives the worm gear to rotate through the synchronous wheel, and the worm gear drives the trapezoidal screw rod to rotate through the other synchronous belt; the trapezoidal screw rod rotates to drive the trapezoidal nut to move, the trapezoidal nut drives the lifting slide plate to move along the direction of the linear guide rail, the movement of the lifting slide plate drives the two symmetrical lifting rods to rotate, the gradient adjustment of the running table lifting seat is realized, and when the running table lifting seat is at a certain gradient, the two symmetrical lifting rods support the running table lifting seat; the moving direction of the trapezoidal nut is controlled through the changed rotating direction of the stepping motor, so that the lifting seat of the running platform is lifted or lowered.

The following problems exist in the lifting of the running platform by using the lifting mechanism: after the angle of the running platform is adjusted, the two lifting rods are utilized for supporting, the running platform is in rigid connection with the base, the impact force is large, the running platform is fed back to the running machine, the lifting rods are easy to deform, the running platform is fed back to a user, the user experience is poor, the problem of poor comfort level is solved, and the difficulty of setting the buffer structure between the running platform and the base is large due to unknown change amount of the angle of the running platform.

Based on the above-mentioned problem, chinese patent publication No. CN113750450B discloses a running table lifting device and running machine that possesses follow-up buffer mechanism, including the base, running table hinged on the base and set up the angle adjustment structure that drives running table lift between running table and base, angle adjustment mechanism includes being fixed in the articulated seat on the one end that the running table kept away from the articulated end, along the articulated lifting arm of articulated seat and pushing component respectively in both ends along the length direction removal of base, the motion of pushing component is controlled by the motion of a actuating lever, the motion of actuating lever is controlled a control mechanism, be provided with follow-up buffer mechanism between running table and base, follow-up buffer mechanism includes fixed block that is fixed in running table lower extreme, support sleeve and telescopic link that stretches out and draws back in the support sleeve that can move along the length direction of base, be provided with between telescopic link and support sleeve and provide the expansion buffer force for both and for the shrink of both when expanding, the motion of an inflation and deflation mechanism is controlled by the inflation and deflation of an airbag.

This patent has set up follow-up buffer gear, but along with the regulation of running platform angle self-adaptation carries out elastic support to the running platform of lifting, this mechanism can provide buffer performance for the running platform to alleviate the impact force that the lifting arm received.

However, the above structure still has the following obvious drawbacks: the included angle between the lifting arm and the horizontal plane is small in an initial state, and a large initial force is needed when the lifting arm lifts, so that the driving force of the control mechanism is required greatly, and the specification of the comparison document shows that the lifting arm is driven by a motor, and the structure is easy to generate overload phenomenon; 2. the inflation and deflation mechanism and the control mechanism are arranged below the running platform, the occupied space is large, and enough space needs to be reserved to avoid the collision between the running belt and the mechanisms.

Disclosure of Invention

Aiming at the defects of large driving force and large installation space requirement of the running machine with the adjustable angle in the prior art, the invention provides the buffer running machine with the adjustable running platform angle, which has high space utilization rate and saves labor.

In order to solve the technical problems, the invention is solved by the following technical scheme:

the buffer type running machine comprises a base, a running table hinged on the base and an angle adjusting mechanism arranged between the running table and the base, wherein the running table is hinged with a buffer mechanism, the buffer mechanism comprises a sleeve hinged on the lower end surface of the running table and a supporting leg which is arranged in the sleeve in a telescopic manner and can slide along the length direction of the base in a guiding manner, and the upper end of the supporting leg is hermetically slid in the sleeve;

an inflation and deflation mechanism capable of inflating or deflating the rodless cavity of the sleeve is arranged between the sleeve and the base, and comprises an air cavity arranged in the base along the length direction of the air cavity, a piston driving rod which is sealed and moved in the air cavity, and an air delivery pipe of which the two ends are respectively communicated with the rodless end of the air cavity and the rodless end of the sleeve in a sealing way;

the angle adjusting mechanism comprises a lifting arm hinged to the lower end surface of the running platform, a moving rod and a driving mechanism, wherein the moving rod is arranged on the fixed seat at one end of the lifting arm, which is far away from the piston driving rod, and is guided to move along the length direction of the fixed seat, the driving mechanism drives the moving rod to move, and a locking mechanism for locking the moving rod and the fixed seat is arranged between the moving rod and the fixed seat;

the device comprises a piston driving rod, a lifting arm and a moving rod, wherein a labor-saving pulley block is arranged among the piston driving rod, the lifting arm and the moving rod and comprises a fixed pulley fixed on a base and a follow-up shaft fixed on a rod body of the piston driving rod, the follow-up shaft is pivoted with one end of the lifting arm far away from the running platform after extending out of the base, a movable pulley is arranged on the follow-up shaft in an outward rotating mode of the base, and a pull rope fixedly connected with a connecting rod after the fixed pulley winds the movable pulley is arranged among the fixed pulley, the movable pulley and the moving rod.

By adopting the scheme, the angle adjustment of the running platform relative to the base is linked with the buffer mechanism, the driving mechanism drives the moving rod to move in-process, simultaneously, the lifting arm is driven to lift and the piston driving rod is driven to move to the inside of the sleeve to be inflated, the buffer mechanism stretches along with the inflation so as to adapt to the change of the height of one end of the running platform, the weight of the running platform can be well buffered by the buffer mechanism, so as to reduce the deformation of the lifting arm, simultaneously, the piston driving rod, the lifting arm and the base are linked through the labor-saving pulley block, the pulley is arranged on the piston driving rod so as to form the movable pulley, the combination of the movable pulley and the fixed pulley can effectively save the driving force required by the movement of the moving rod, and the number of the movable pulley and the fixed pulley can be set according to the actual demands, so that the driving difficulty of the driving mechanism can be obviously reduced, the energy-saving effect is achieved, the inflation and deflation mechanism is arranged inside the base, the mechanism occupied below the running platform is less, the running platform can avoid the collision between a running belt and a mechanism under the running platform when the deformation under the stress, so that the running platform angle is adjustable, the running platform buffer performance changes along with the change of the angle of the self-adaption of the running platform, the whole running platform has the energy-saving space efficiency, and the running platform is good in energy-saving space utilization.

Preferably, the number of the fixed pulleys is N (N is more than or equal to 1), the number of the movable pulleys is N or (N+1) (N is more than or equal to 1), the pull rope winds the innermost movable pulleys from the innermost fixed pulleys and winds the innermost movable pulleys outwards in sequence and is finally fixedly connected with the movable rod, and all the movable pulleys synchronously move with the piston driving rod.

By adopting the scheme, the pulley saves labor by taking 2 as a base number, the number of the movable pulleys is an index, the value is the reciprocal of the value, and the actual driving force F=1/2 ^N The more the number of the movable pulleys is, the more labor is saved.

Preferably, the base comprises support plates arranged on two sides of the running platform along the length direction of the running platform, guide grooves are formed in one sides of the two opposite support plates along the length direction of the two support plates, sliding blocks which slide along the guide grooves in a guiding manner are convexly arranged at two ends of the moving rod, and lifting arms, air charging and discharging mechanisms, labor-saving pulley blocks and buffering mechanisms are arranged between each support plate and the running platform.

By adopting the scheme, the inflation and deflation mechanism is provided with two groups, one group is respectively arranged in each supporting plate, the two groups of labor-saving pulley blocks are fixed with the moving rod through the respectively connected pull ropes, the two sides of the running table can be driven to be synchronously matched with the two supporting plates by the movement of the driving rod, the stability of lifting of the running table is improved, the stress of the pull ropes is reduced, and the service life of the pull ropes is prolonged.

Preferably, the driving mechanism is a cylinder fixed with the base, and the end part of a piston driving rod of the cylinder is fixedly connected with the center of the moving rod.

By adopting the scheme, the cylinder piston driving rod stretches and contracts to drive the moving rod to slide reciprocally along the length direction of the running platform, and the piston driving rod of the cylinder is connected with the center of the moving rod, so that the stress uniformity of the two ends of the moving rod can be improved.

Preferably, the locking mechanism comprises a rack extending along the length direction of the inner wall of the guide groove, a concave groove on the sliding block, a tooth block capable of partially extending out of the groove to be meshed with the rack or fully retracting into the groove to be separated from the rack, and an electromagnetic control mechanism for driving the tooth block to automatically stretch out and draw back.

By adopting the scheme, when the tooth block is retracted, the sliding block is matched with the guide chute in a guiding sliding manner, at the moment, the moving rod is in an unlocking state, and the running table can be used for angle adjustment; when the tooth block stretches out, the sliding block is locked in the guide chute, the angle of the running table is not adjustable, running motion can be performed at the moment, and the matching mode of the tooth block and the rack is high in adjusting precision.

Preferably, the electromagnetic control mechanism comprises an electromagnet fixed at the bottom of the groove and an elastic piece with two ends elastically abutted or fixedly connected with the electromagnet or the tooth block respectively, and the extension and retraction of the tooth block are controlled by the power supply or the power failure of the electromagnet.

By adopting the scheme, when the electromagnet is electrified, the tooth block is retracted, and the sliding block is in an unlocking state; when the electromagnet is powered off, the tooth block partially stretches out to be meshed with the rack under the action of the elastic piece, and the sliding block is in a locking state.

Preferably, the bottom of the supporting leg is provided with an elastic cushion block, and an adjusting guide mechanism which can move along the length direction of the supporting plate along with the change of the angle of the running table is arranged between the elastic cushion block and the supporting plate.

By adopting the scheme, the bottom of the supporting foot is provided with the elastic cushion block, so that the abrasion of the supporting foot is reduced, and the buffering performance is improved.

Preferably, the adjusting guide mechanism comprises a guide chute recessed in the lower end surface of the support plate and a guide block protruding from the elastic cushion block and inserted into the guide chute, and the depth of the guide chute is larger than the height of the guide block.

By adopting the scheme, the depth of the guide chute is larger than that of the guide block, when the running platform is in a lifting state, the follow-up buffer mechanism is in a stretching state and can drive the guide block to move upwards, the depth of the guide chute is slightly larger, no friction force exists between the bottom of the elastic cushion block and the ground, the guide block can slide along the guide chute conveniently, the sliding smoothness is improved, and after the angle of the running platform is adjusted, the elastic cushion block is in contact with the ground so as to provide good buffer performance of the running platform.

Preferably, the sleeve is provided with at least two sleeves which are in sealing and sleeving fit with each other, and the supporting feet are arranged in the innermost sleeve.

By adopting the scheme, the sleeves are arranged in a plurality, the occupied height after nesting is small, the height after stretching is large, and the telescopic sleeve can adapt to a larger angle adjusting range.

Preferably, buffer cushion blocks are arranged at the bottom of the supporting plate at intervals along the length direction of the supporting plate.

By adopting the scheme, the buffer cushion block can provide good buffer performance for the base and the running platform simultaneously.

The invention has the remarkable technical effects due to the adoption of the technical scheme: the angle adjustment of the running platform relative to the base can be realized only by one driving mechanism, the energy-saving and labor-saving device has the advantages of saving energy, saving labor, good buffering performance and the like, the driving mechanism drives the lifting arm to lift and drives the piston driving rod to move to the inside of the sleeve to be inflated in the moving process, the buffering mechanism stretches along with inflation to adapt to the change of the height of one end of the running platform, the weight of the running platform can be buffered well by the buffering mechanism, so that the deformation of the lifting arm is reduced, meanwhile, the piston driving rod, the lifting arm and the base are linked through the labor-saving pulley block, the pulley is arranged on the piston driving rod to form a movable pulley, the combination of the movable pulley and the fixed pulley can effectively save the driving force required by the movement of the movable rod, and the number of the movable pulley can be set according to actual demands, thus, the driving difficulty of the driving mechanism can be obviously reduced, the energy-saving effect is achieved, the inflation and deflation mechanism is arranged inside the base, the running platform is less in occupied mechanism, the running platform can be prevented from being damaged by collision with the mechanism under the running platform when the running platform is deformed due to the force, the running platform is not only, the angle of the running platform is adjustable, the running platform is changed along with the change of the angle of the running platform, the energy-saving device, the running platform is self-saving in the running platform, the running structure is adaptive to the running platform, and the running structure is good in the running angle, and the running performance is adapted to the change of the running platform.

Drawings

FIG. 1 is an isometric view of a buffer-type treadmill with an adjustable treadmill angle according to the present embodiment;

FIG. 2 is an isometric view of the treadmill and base of the present embodiment

FIG. 3 is an isometric view of the treadmill and base of FIG. 2 with the tread belt removed;

FIG. 4 is a front view of the opposite side support plate of the running block of the present embodiment as it descends;

FIG. 5 is a cross-sectional view of A-A of FIG. 4;

FIG. 6 is a front view of the opposite side of the running block of the present embodiment with the support plate raised;

FIG. 7 is a cross-sectional view of A-A of FIG. 6;

FIG. 8 is a cross-sectional view of B-B of FIG. 7;

fig. 9 is an enlarged view of B of fig. 8;

figure 10 is an isometric view of the lift arm of the present embodiment connected to a piston drive rod.

The names of the parts indicated by the numerical reference numerals in the above drawings are as follows: 1. a support plate; 101. a yielding chute; 102. a guide groove; 103. an air cavity; 104. a guide chute; 2. a running belt; 3. buffering cushion blocks; 4. an elastic cushion block; 401. a guide block; 5. a support rod; 6. lifting the arm; 7. a follower shaft; 8. a movable pulley; 9. a fixed pulley; 10. a pull rope; 11. a sleeve; 12. an air pipe; 13. a moving rod; 131. a slide block; 14. a cylinder; 15. a rotating roller; 16. a piston driving rod; 17. a rack; 18. a connecting plate; 19. supporting feet; 20. a groove; 21. an electromagnet; 22. an elastic member; 23. tooth blocks; 24. a connecting rod; 25. an armrest.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Examples

The utility model provides a treadmill of adjustable buffering type of running platform angle, combine the fig. 1-3 to show, including the base and articulate the running platform on the base, the base includes two backup pad 1 that set up along running platform length direction, the length direction interval along backup pad 1 in backup pad 1 is provided with buffering cushion 3 in the bottom of backup pad 1, this buffering cushion 3 can provide base and running platform cushioning effect, the running platform includes two bracing pieces 5 that are parallel with backup pad 1, the both ends of bracing piece 5 are provided with the rotor roll 15 that both ends and two bracing pieces 5 rotate to be connected respectively, the tensioning is provided with a running belt 2 between two rotor rolls 15, be fixed with one of them rotor roll 15 pivoted motor on bracing piece 5, rotor roll 15 rotates and drives running belt 2 and rotate, base one end is provided with handrail 25, the one end that handrail 25 was kept away from to bracing piece 5 is handed over with backup pad 1, and be provided with angle adjustment mechanism between one end that bracing piece 5 is close to handrail 25 and backup pad 1, still be provided with along with the lifting self-adaptation's of bracing piece 5 angle on the bracing piece 5 of each side.

As shown in fig. 4-8, the follow-up buffer mechanism comprises a sleeve 11 hinged below one end of the support rod 5 near the armrest 25, the sleeve 11 is provided with more than two sleeves and is in mutually sealed sleeving arrangement, the opening of the uppermost sleeve 11 is downwards arranged, the sleeves 11 below are all vertically penetrated and arranged, the upper ends of the sleeves are provided with limiting blocks for limiting the sleeves to be separated from the bottoms of the sleeves 11 above, a supporting leg 19 is telescopically arranged in the sleeves 11 at the innermost side, an elastic cushion block 4 is fixed below the supporting leg 19, and an inflation and deflation mechanism for inflating or discarding the interiors of the sleeves 11 is arranged between the uppermost sleeve 11 and the support plate 1.

Referring to fig. 5 and 8 specifically, the inflation and deflation mechanism includes an air cavity 103 disposed along the length direction of each support plate 1, a piston driving rod 16 is disposed in the air cavity 103 in a sealing manner, and an air pipe 12 with two ends in sealing connection with the air cavity 103 and the uppermost sleeve 11 is disposed between the air cavity 103 and the uppermost sleeve 11.

In order to ensure that the supporting leg 19 is always in a vertical state, an adjusting guide mechanism for driving the elastic cushion 4 to move along the length direction of the supporting plate 1 is arranged between the elastic cushion 4 and the supporting plate 1, as shown in fig. 7, the adjusting guide mechanism comprises a guide chute 104 recessed in the lower end surface of the supporting plate 1 and a guide block 401 protruding from the elastic cushion 4 and inserted into the guide chute 104, the depth of the guide chute 104 is greater than the height of the guide block 401, the depth of the guide chute 104 is greater than the guide block 401, when the running platform is in a lifting state, the follow-up buffer mechanism is in a stretching state, the guide block 401 can be driven to move upwards, the depth of the guide chute 104 is slightly greater, no friction force is generated between the bottom of the elastic cushion 4 and the ground, the guide block 401 is convenient to slide along the guide chute 104, the smoothness of sliding is improved, the mechanism can ensure that the supporting leg 19 is always in a vertical state, the sleeve 11 can adapt to the vertical supporting leg 19 by changing an included angle between the sleeve 11, the position of the running platform is adjusted by moving along the length direction of the supporting leg 19 relative to the supporting plate 1, after the running platform angle is adjusted, the depth of the sleeve 11 is greater than the guide block 401, the guide block 401 is contacted with the ground after the running platform angle is adjusted, so that the good buffer performance is provided.

The angle adjusting mechanism comprises a lifting arm 6 hinged to the lower end face of a supporting rod 5, a moving rod 13 is arranged on a supporting plate 1 in a manner that one end, close to an armrest 25, of the lifting arm 6 moves along the length direction of the supporting plate 1, a labor-saving pulley block which drives the piston driving rod 16 to move and the lifting arm 6 to lift simultaneously along with the movement of the moving rod 13 is arranged between the lifting arm 6, a piston driving rod 16 and the moving rod 13, the labor-saving pulley block is shown in fig. 4-6 and 10, the labor-saving pulley block comprises a fixed pulley 9 which is rotatably arranged on a base, two follow-up shafts 7 which are spaced in parallel with each other and extend out of the supporting plate 1 are vertically arranged on a rod body of the piston driving rod 16, a movable chute 101 which can enable the follow-up shafts 7 to smoothly move is arranged on the follow-up shafts 7, a movable pulley 8 is rotatably arranged outside the supporting plate 1, one follow-up shaft 7 which is simultaneously matched with one end, far away from the supporting rod 5, of the fixed pulley 9 extends on the fixed shaft, a connecting rod 24 is arranged between the movable pulley 8 and the moving rod 13, one end of the labor-saving pulley block is fixed with the connecting rod and the other end of the movable pulley 8 sequentially around the inner movable pulley 8, the fixed pulley 9, the fixed pulley 8, the movable pulley 8 and the movable pulley 8 are fixedly connected with the inner side 13 in sequence, and the movable pulley 8 are required to be the movable driving force 1 and the movable pulley 1.

The movement of the moving rod 13 is controlled by a driving mechanism, the driving mechanism is a cylinder 14, a fixed rod is fixed between two supporting plates 1, the cylinder body of the cylinder 14 is fixed on the fixed rod, the end part of the piston rod of the cylinder 14 is fixedly connected with the center of the moving rod 13, when the piston rod of the cylinder 14 is retracted, the moving rod 13 is driven to move in a direction away from the armrest 25, the piston of the piston driving rod 16 compresses a rodless cavity of the air cavity 103, the lower end of the lifting arm 6 moves towards the moving rod 13, the running platform realizes angle lifting, meanwhile, gas in the air cavity 103 is flushed into the sleeve 11, and the buffer mechanism stretches to adapt to the lifted running platform; when the piston rod of the cylinder 14 extends, the moving rod 13 is driven to move towards the direction close to the handrail 25, the rodless cavity of the air cavity 103 is enlarged, the air pressure is reduced, the air in the sleeve 11 is pumped out, and the buffer mechanism contracts to adapt to the descending running platform.

A guide mechanism is arranged between the moving rod 13 and the supporting plate 1 to ensure smooth and stable movement of the moving rod 13, and particularly referring to fig. 6-9, the guide mechanism comprises a guide groove 102 arranged on one side opposite to the two supporting plates 1 along the length direction, two ends of the moving rod 13 are convexly provided with a sliding block 131 which is in guide sliding with the guide groove 102, when the running table angle is regulated, the movement of the moving rod 13 is required to be limited, therefore, a locking mechanism is arranged between the sliding block 131 and the guide groove 102, the locking mechanism comprises a rack 17 which is fixedly extended on the inner wall of the guide groove 102 along the length direction, a groove 20 is recessed on the sliding block 131, a tooth block 23 which can be partially extended out and then is meshed with the rack 17 or completely retracted into the groove 20 and separated from the rack 17 is arranged in the groove 20, the contraction of the tooth block 23 is controlled by an electromagnetic control mechanism, the electromagnetic control mechanism comprises an electromagnet 21 fixedly arranged at the bottom of the groove 20 and an elastic piece 22, two ends of the elastic piece 22 are respectively and fixedly connected with the electromagnet 21 or the tooth block 23 in an elastic mode, the elastic piece 22 is a spring, and when the electromagnet 21 is powered on, the tooth block 23 is retracted, and the moving rod 13 can move; when the electromagnet 21 is powered off, the tooth block 23 is ejected to be meshed with the tooth block 23 under the action of a spring, and the movable rod 13 is locked.

The power supply or power failure of the electromagnet 21 is controlled by a control circuit, the control circuit comprises the electromagnet 21 and a switch which are arranged in series, the switch is arranged on the armrest 25, and a switching button of an electromagnetic valve of the air cylinder 14 is also arranged on the armrest 25, so that the angle adjustment of a running platform and the automatic adjustment of a buffer mechanism can be driven by only one air cylinder 14, the driving force required by the movement of the moving rod 13 can be effectively reduced by the arrangement of a labor-saving pulley block, the labor-saving effect is achieved, when a piston rod of the air cylinder 14 stretches out, the moving rod 13 moves towards the armrest 25, the lifting arm 6 synchronously moves towards the armrest, one end of the running platform close to the armrest 25 turns downwards, the piston driving rod 16 synchronously moves towards the armrest, the volume of an air cavity 103 is increased, and the air in the sleeve 11 is driven to be conveyed into the rodless cavity by negative pressure, and the sleeve 11 contracts to adapt to the running platform which descends; when the piston driving rod 16 of the cylinder is retracted, the moving rod 13 moves in the direction away from the handrail, the lifting arms 6 synchronously move in the direction away from the handrail, one end of the running platform close to the handrail is turned upwards, the piston driving rod 16 synchronously moves in the direction away from the handrail, the volume of the rodless cavity of the air cavity 103 is reduced, the increased air pressure conveys air into the sleeves 11, and the sleeves 11 stretch to adapt to the lifted running platform.

Claims (10)

1. The utility model provides a run platform angularly adjustable buffering formula treadmill, includes the base, articulates the platform of running on the base and sets up the angle adjustment mechanism between platform and base, its characterized in that:

the buffer mechanism is hinged on the running platform and comprises a sleeve (11) hinged on the lower end surface of the running platform and a supporting leg (19) which is arranged in the sleeve (11) in a telescopic manner and can slide along the length direction of the base in a guiding manner, and the upper end of the supporting leg (19) is hermetically slid in the sleeve (11);

an inflation and deflation mechanism capable of inflating or deflating the rodless cavity of the sleeve (11) is arranged between the sleeve (11) and the base, and comprises an air cavity (103) arranged in the base along the length direction of the air cavity, a piston driving rod (16) which is hermetically moved in the air cavity (103) and an air delivery pipe (12) of which the two ends are respectively in sealed communication with the rodless end of the air cavity (103) and the rodless end of the sleeve (11);

the angle adjusting mechanism comprises a lifting arm (6) hinged to the lower end surface of the running table, a moving rod (13) which is arranged on the fixed seat and is guided to move along the length direction of the fixed seat at one end, far away from the piston driving rod (16), of the lifting arm (6), and a driving mechanism for driving the moving rod (13) to move, and a locking mechanism for locking the moving rod (13) and the fixed seat is arranged between the moving rod and the fixed seat;

be provided with laborsaving assembly pulley between piston drive pole (16), lifting arm (6) and movable rod (13), laborsaving assembly pulley is including being fixed in fixed pulley (9) on the base and being fixed in follow-up shaft (7) on the piston drive pole (16) body of rod, follow-up shaft (7) extend behind the base with lifting arm (6) keep away from the one end pin joint cooperation of running platform, follow-up shaft (7) are provided with a movable pulley (8) in the outer rotation of base, be provided with between fixed pulley (9), movable pulley (8) and movable rod (13) from fixed pulley (9) around behind movable pulley (8) with connecting rod fixed connection's stay cord (10).

2. The adjustable treadmill angle cushioning treadmill of claim 1, wherein: the number of the fixed pulleys (9) is N (N is more than or equal to 1), the number of the movable pulleys (8) is N or N+1 (N is more than or equal to 1), the pull rope (10) winds the innermost fixed pulleys (9) around the innermost movable pulleys (8) and is sequentially wound outwards and finally fixedly connected with the movable rod (13), and all the movable pulleys (8) synchronously move with the piston driving rod (16).

3. The adjustable treadmill angle cushioning treadmill of claim 1, wherein: the base includes in the backup pad (1) that running platform length direction set up along running platform length direction in both sides, and one side that two backup pads (1) are relative is provided with guide slot (102) along its length direction, and protruding slider (131) that slide with guide slot (102) direction in both ends of movable rod (13) are provided with lifting arm (6), fill gassing mechanism, laborsaving assembly pulley and buffer gear between every backup pad (1) and running platform.

4. A buffer-type treadmill with adjustable treadmill angle as claimed in claim 3, wherein: the driving mechanism is an air cylinder (14) fixed with the base, and the end part of a piston driving rod (16) of the air cylinder (14) is fixedly connected with the center of the moving rod (13).

5. A buffer-type treadmill with adjustable treadmill angle as claimed in claim 3, wherein: the locking mechanism comprises a rack (17) which is arranged on the inner wall of the guide groove (102) in an extending way along the length direction, a concave groove (20) which is arranged on the sliding block (131), a tooth block (23) which can partially extend out of the concave groove (20) to be meshed with the rack (17) or fully retract into the concave groove (20) to be separated from the rack (17), and an electromagnetic control mechanism which drives the tooth block (23) to automatically stretch out and draw back.

6. The adjustable treadmill angle cushioning treadmill of claim 5, wherein: the electromagnetic control mechanism comprises an electromagnet (21) fixed at the bottom of the groove (20) and an elastic piece (22) with two ends elastically abutted or fixedly connected with the electromagnet (21) or the tooth block (23), and the extension and retraction of the tooth block (23) is controlled by the power supply or the power failure of the electromagnet (21).

7. The adjustable treadmill angle cushioning treadmill of claim 1, wherein: the bottom of supporting legs (19) is provided with elasticity cushion (4), is provided with between elasticity cushion (4) and backup pad (1) and follows the change of running platform angle and can supply the regulation guiding mechanism that elasticity cushion (4) moved along backup pad (1) length direction.

8. A buffer-type treadmill with adjustable treadmill angle as claimed in claim 3, wherein: the adjusting guide mechanism comprises a guide chute (104) recessed in the lower end surface of the supporting plate (1) and a guide block (401) convexly arranged on the elastic cushion block (4) and inserted into the guide chute (104), and the depth of the guide chute (104) is larger than the height of the guide block (401).

9. The adjustable treadmill angle cushioning treadmill of claim 1, wherein: the sleeve (11) is provided with at least two sleeves which are mutually sealed and sleeved and matched, and the supporting feet (19) are arranged in the innermost sleeve (11).

10. A buffer-type treadmill with adjustable treadmill angle as claimed in claim 3, wherein: the bottom of the supporting plate (1) is provided with buffer cushion blocks (3) along the length direction of the supporting plate (1) at intervals.

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