CN114432649B

CN114432649B - Folding running machine

Info

Publication number: CN114432649B
Application number: CN202210249479.7A
Authority: CN
Inventors: 丘志斌; 杨国松; 丘志州; 曹艳红
Original assignee: Guangzhou Lidong Health Technology Co ltd
Current assignee: Guangzhou Lidong Health Technology Co ltd
Priority date: 2022-03-14
Filing date: 2022-03-14
Publication date: 2022-11-01
Anticipated expiration: 2042-03-14
Also published as: CN114432649A

Abstract

The invention belongs to the technical field of fitness equipment, and particularly relates to a folding treadmill which comprises a machine body and handrails, wherein rotary tables are rotatably assembled in two inner cavities, limiting mechanisms matched with arc-shaped locking grooves are assembled in the two inner cavities, sucking discs are assembled on two mounting blocks, sealing plates are provided with sealing blocks corresponding to two through holes one by one, rotary rods are in threaded connection with the sealing plates, rebounding mechanisms matched with the rotary rods are arranged in the machine body, a positioning mechanism and a hot air mechanism are respectively assembled at two ends of a hollow rotary shaft, and a plurality of air holes are formed in the lower surfaces of the two hollow rods.

Description

Folding running machine

Technical Field

The invention belongs to the technical field of fitness equipment, and particularly relates to a folding treadmill.

Background

The treadmill is the body-building apparatus that family and gymnasium were equipped with always, and be the simplest one in the body-building apparatus of present family, be the best choice of family's fitness equipment, the family of handling the treadmill at home is more and more at present, but the occupation space of treadmill is great, consequently folding treadmill should be in time and live, but most vertical placing after folding of treadmill now, cause easily empting, and when the treadmill was using at present, because the effort backward when the fitness staff ran, lead to the treadmill to slide backward easily.

Disclosure of Invention

The purpose of the invention is: aims to provide a folding running machine which is used for solving the technical problems in the background technology.

In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:

a folding running machine comprises a machine body and handrails, wherein a control screen is assembled in the middle of each handrail, inner cavities are respectively arranged at the left end and the right end of the front side of the machine body, turntables are respectively and rotatably assembled in the inner cavities, a plurality of arc-shaped locking grooves are uniformly and annularly arranged on the side surfaces of the two turntables, a limiting mechanism matched with the arc-shaped locking grooves is respectively assembled in the two inner cavities, two ends of the handrail respectively extend into the two inner cavities to be fixedly connected with the centers of the two turntables, the front end of the machine body is provided with an installation cavity, a sliding plate is arranged in the mounting cavity in a sliding manner, mounting blocks are symmetrically arranged on the side, away from the center of the machine body, of the sliding plate, sucking discs are arranged on the two mounting blocks, the front end of the machine body is provided with an extending hole matched with the two suckers, the two mounting blocks are both provided with through holes which penetrate through the sliding plate and are communicated with the insides of the suckers, the sliding plate is provided with sliding rods at the side away from the sucker in a bilateral symmetry manner, the two sliding rods are assembled with a sealing plate in a sliding manner, the sealing plate is provided with sealing blocks which are in one-to-one correspondence with the two through holes, the rear side of the sliding plate is rotatably provided with a rotating rod, the rotating rod is connected with the sealing plate by screw thread, the machine body is provided with a sliding hole matched with the rotating rod, the rotating rod penetrates through the sealing plate and extends out of the sliding hole to be fixedly connected with a handle, the machine body is internally provided with a rebounding mechanism matched with the rotating rod, the bottom of the machine body is symmetrically provided with a placing groove at the left and the right, the machine body is rotatably provided with a hollow rotating shaft penetrating through the two placing grooves, two ends of the hollow rotating shaft are respectively provided with a positioning mechanism and a hot air mechanism, hollow rods fixedly connected with the hollow rotating shaft are respectively arranged in the two placing grooves, the hollow rotating shaft surface is provided with two air outlet holes which are respectively communicated with the inside of the hollow rod, and the lower surface of the hollow rod is provided with a plurality of air holes.

Stop gear is including the roof, the roof upper end be equipped with arc locked groove assorted arc latch fitting, roof downside bilateral symmetry be equipped with inner chamber inner wall fixed connection's telescopic link, two the telescopic link surface all overlaps and is equipped with first spring.

When the carousel rotates, because the outer wall is equipped with a plurality of arc locked grooves, and under the effect that first spring stretches, the arc latch fitting contacts the carousel surface all the time, consequently when the carousel rotates, constantly downward butt arc latch fitting, first spring constantly makes the arc latch fitting reset, such design, when the arc latch fitting locks into the arc locked groove, the carousel can not take place easily to rotate, thereby can carry on spacingly to the handrail, make the handrail can not take place easily to rotate, such design is when the staff need fold, can directly rotate the handrail, the handrail can be automatic spacing. .

The rebound mechanism is including the mounting hole with the slide opening intercommunication, the mounting hole sets up with the slide opening is concentric, and the diameter is greater than the slide opening, it is equipped with the stopper with bull stick fixed connection to slide in sucking disc one side to keep away from in the mounting hole, the stopper is equipped with the second spring of establishing with the bull stick cover towards sucking disc one side.

According to the design, after the sucker cancels adsorption, the rotating rod box is driven to move away from one side of the sucker under the stretching action of the second spring, and the sucker is driven to be retracted into the installation cavity.

Positioning mechanism is including rotating with hollow rotating shaft center fixed connection's rotation piece, it is equipped with first lockhole and second lockhole to rotate the piece surface, first lockhole and second lockhole are ninety degrees distributions for the center by rotating the piece centre of a circle, organism surface fixedly connected with fixing base, the fixing base is equipped with the step hole towards rotating one side, step hole up end is equipped with the third spring, third spring downside is equipped with the T shape latch fitting that stretches out the step hole, T shape latch fitting and first lockhole and second lockhole phase-match, the fixing base be equipped with T shape latch fitting assorted pulling subassembly.

Such design, when T shape latch fitting lock goes into first latch fitting in, can carry on spacingly to the rotating part, hollow rotating shaft can not take place to rotate, two hollow poles are located two standing grooves respectively this moment, when wanting to stretch out two hollow poles, accessible pulling subassembly, it is downthehole to drive T shape latch fitting rebound income step, the compression of third spring, shift out in following first latch fitting until T shape latch fitting, can follow the standing groove with two hollow poles at this moment and roll out, until second latch fitting position and T shape latch fitting position phase-match, then loosen the pulling subassembly, stretch through the third spring, drive T shape latch fitting downstream and stretch out the step hole, until locking in the second latch fitting, it is spacing to the rotating part, thereby it is spacing to carry out hollow pole, when need not use hollow pole, with the same reason, shift out T shape latch fitting from in the second latch fitting, then lock T shape latch fitting in first latch fitting.

The pulling assembly comprises a pull rod, a sliding groove communicated with the step hole is formed in the surface of the fixing seat, one end of the pull rod penetrates through the sliding groove to be fixedly connected with the T-shaped locking piece, and the other end of the pull rod is fixedly connected with a shifting block. Personnel can dial the toggle block upwards, and the pull rod drives the T-shaped locking piece to move upwards in the step hole.

The hot air mechanism comprises a hollow cover arranged on the outer side of the machine body, one end of the hollow rotating shaft is communicated with the inside of the hollow cover, the hollow cover is provided with a hot air pipe, and the other end of the hot air pipe is provided with an air heater fixedly connected with the machine body. When the air heater starts to work, hot air can be injected into the hollow part by the overheating air pipe, so that the hot air enters the hollow rotating shaft.

And anti-skidding grains are arranged on the surface of one side, away from the air holes, of each hollow rod. Such a design may increase the friction on the upper surface of the hollow bar.

Rubber pads are arranged at four corners of the lower side of the machine body. The design can reduce the impact force generated by the person running on the body to the ground, and has the functions of shock absorption and sound attenuation.

The novel treadmill has the advantages that the structure is simple, the design is ingenious, the machine body can be adsorbed on the wall surface through the sucking disc during running training, the machine body cannot slide due to backward acting force during running, the stability of the machine body can be improved when the machine body is vertically placed and the sucking disc adsorbs the ground, the machine body is not prone to toppling, when a worker folds the machine body, the handrail can be directly rotated, the handrail can be automatically limited after being folded to a proper position, the worker does not need to additionally limit the position, meanwhile, after the machine body is vertically placed, the two hollow rods can be unfolded for the worker to hang and dry clothes, the machine body is diversified in functions, the machine body can still be used for hanging and drying the clothes when the machine body is not used, the clothes can be blown through hot air, and the clothes can be dried more quickly.

Drawings

The invention is further illustrated by the non-limiting examples given in the accompanying drawings;

FIG. 1 is a first schematic structural view of an embodiment of a foldable treadmill of the present invention;

FIG. 2 is a second schematic structural view of an embodiment of a foldable treadmill of the present invention;

FIG. 3 is a third schematic structural view of an embodiment of a foldable treadmill of the present invention;

FIG. 4 is a cross-sectional view of a first embodiment of the foldable treadmill of the present invention;

FIG. 5 is an enlarged view of the structure at A in FIG. 4;

FIG. 6 is an enlarged view of the structure at B in FIG. 4;

FIG. 7 is a schematic sectional view illustrating a second embodiment of a foldable treadmill of the present invention;

FIG. 8 is an enlarged view of the structure of FIG. 7 at C;

FIG. 9 is an enlarged view of FIG. 7 at D;

FIG. 10 is a schematic view of a portion of a folding treadmill according to an embodiment of the present invention;

the main component symbols are as follows:

the air conditioner comprises a machine body 1, a handrail 11, a control screen 12, an inner cavity 13, a rotary table 14, an arc-shaped locking groove 15, an installation cavity 2, a sliding plate 21, an installation block 22, a suction cup 23, a protruding hole 24, a through hole 25, a sliding rod 3, a sealing plate 31, a sealing block 32, a rotary rod 33, a sliding hole 34, a handle 35, a placement groove 4, a hollow rotary shaft 41, a hollow rod 42, an air outlet hole 43, an air vent 44, a top plate 5, an arc-shaped locking piece 51, an expansion rod 52, a first spring 53, an installation hole 54, a limiting block 55, a second spring 56, a rotary piece 6, a first locking hole 61, a second locking hole 62, a fixed seat 63, a step hole 64, a third spring 65, a T-shaped locking piece 66, a sliding groove 67, a pull rod 671, a stirring block 68, a hollow cover 7, a hot air pipe 71, a hot air blower 72 and a rubber pad 73.

Detailed Description

In order that those skilled in the art can better understand the present invention, the following technical solutions are further described with reference to the accompanying drawings and examples.

As shown in figures 1-10, the folding treadmill of the invention comprises a machine body 1 and a handrail 11, a control screen 12 is assembled in the middle of the handrail 11, inner cavities 13 are respectively arranged at the left and right ends of the front side of the machine body 1, rotary tables 14 are rotatably assembled in the two inner cavities 13, a plurality of arc-shaped locking grooves 15 are uniformly annularly arranged on the side surfaces of the two rotary tables 14, a limiting mechanism matched with the arc-shaped locking grooves 15 is assembled in the two inner cavities 13, the two ends of the handrail 11 respectively extend into the two inner cavities 13 to be fixedly connected with the centers of the two rotary tables 14, a mounting cavity 2 is arranged at the front end of the machine body 1, a sliding plate 21 is slidably assembled in the mounting cavity 2, mounting blocks 22 are symmetrically arranged at the left and right sides of the sliding plate 21 far away from the center of the machine body 1, sucking discs 23 are respectively assembled on the two mounting blocks 22, extending holes 24 matched with the two sucking discs 23 are arranged at the front end of the machine body 1, through holes 25 penetrating through the sliding plate 21 and communicated with the insides of the sucking discs 23 are arranged on the two mounting blocks 22, slide bars 3 are symmetrically arranged on the side, away from a sucker 23, of a slide plate 21 in a bilateral mode, a sealing plate 31 is assembled on the two slide bars 3 in a sliding mode, the sealing plate 31 is provided with sealing blocks 32 corresponding to the two through holes 25 one by one, a rotating rod 33 is assembled on the rear side of the slide plate 21 in a rotating mode, the rotating rod 33 is in threaded connection with the sealing plate 31, a sliding hole 34 matched with the rotating rod 33 is formed in a machine body 1, the rotating rod 33 penetrates through the sealing plate 31 and extends out of the sliding hole 34 to be fixedly connected with a handle 35, a rebounding mechanism matched with the rotating rod 33 is arranged inside the machine body 1, placing grooves 4 are symmetrically arranged on the left side and the right side of the bottom of the machine body 1, a hollow rotating shaft 41 penetrating through the two placing grooves 4 is arranged on the machine body 1 in a rotating mode, a positioning mechanism and a hot air mechanism are respectively arranged at two ends of the hollow rotating shaft 41, hollow rods 42 are fixedly connected with the hollow rotating shafts 41, two air outlet holes 43 respectively communicated with the insides of the hollow rods 42 are arranged on the surfaces of the hollow shafts 41, the lower surfaces of the two hollow rods 42 are provided with a plurality of air holes 44.

When a worker needs to run by using the machine body 1, the front end of the machine body 1 can be attached to a wall, then the worker can rotate the handle 35 forward, the rotating rod 33 is driven to rotate forward, the rotating rod 33 is in threaded connection with the sealing plate 31, the sealing plate 31 can be driven to move towards one side close to the sliding plate 21 until the two sealing blocks 32 respectively extend into the two through holes 25 to seal the two through holes 25, at the moment, the worker presses the handle 35, the sliding plate 21 is ejected outwards through the rotating rod 33, the rebounding mechanism is compressed until the two sucking discs 23 respectively extend out of the two extending holes 24 and are adsorbed on a wall surface, so that the position of the machine body 1 is positioned by adsorbing through the two sucking discs 23, the machine body 1 cannot slide backwards due to running of the worker, when adsorption needs to be cancelled, the worker can rotate the handle 35 reversely, the rotating rod 33 is driven to rotate reversely, the sealing plate 31 is driven to move towards one side away from the drawing board 21, until the two sealing blocks 32 respectively move out of the two through holes 25, so that outside air can enter the mounting cavity 2 through the extending holes 24, then the sucking discs 23 can be cancelled, and the rebounding mechanism is driven by the sucking discs 23;

when the working personnel do not use the machine body 1, the working personnel can directly rotate the handrail 11 to enable the handrail 11 to rotate towards one side close to the upper end face of the machine body 1, when the handrail 11 rotates, the rotating discs 14 at two sides are driven to rotate, and after the handrail 11 is folded to a proper position, the limiting mechanism is automatically locked into the arc-shaped locking groove 15 corresponding to the position, so that the position of the handrail 11 is limited;

after the handrail 11 is shielded, a worker can hold the machine body 1, the front end of the machine body 1 is in contact with a storefront, the machine body 1 is in a vertical state, the whole occupied space is reduced, the worker can stretch the suction disc 23 out of the mounting cavity 2 and adsorb the suction disc 23 on the ground, the stability of the machine body 1 is improved, the machine body is not prone to toppling and the safety is good;

when the machine body 1 is vertically placed and is fixed to the machine body 1 through the suction disc 23 in an adsorption mode, a worker cancels limitation of the hollow rotating shaft 41 through the positioning mechanism, the worker can rotate the two hollow rods 42 out of the placing grooves 4 until the two hollow rods 42 rotate out of the two placing grooves 4, after the two hollow rods 42 and the machine body 1 are distributed at ninety degrees, the hollow rotating shaft 41 is limited through the positioning mechanism, the hollow rotating shaft 41 cannot rotate, the worker can hang and air clothes on the two hollow rods 42 at the moment, the clothes can be hung and air by the aid of the design when running training is not conducted, the clothes can be hung and air integrally utilized, the hot air mechanism works, hot air can be injected into the hollow rotating shaft 41, the hot air entering the hollow rotating shaft 41 can enter the two hollow rods 42 through the air outlet holes 43 and can be discharged out of the hollow rods 42 through the air outlet holes 44, the clothes hung and air on the lower side can be blown, the clothes hanging and air-drying speed of the clothes is improved, and the clothes can be hung and the machine body 1 can be used when the running training is not to empty.

Stop gear is equipped with arc keyway 15 assorted arc latch fitting 51 including roof 5, 5 upper ends of roof, 5 downside bilateral symmetry of roof are equipped with inner chamber 13 inner wall fixed connection's telescopic link 52, and two telescopic link 52 surfaces all overlap and are equipped with first spring 53.

When the carousel 14 rotates, because the outer wall is equipped with a plurality of arc locked grooves 15, and under the effect that first spring 53 stretches, arc latch 51 contacts carousel 14 surface all the time, consequently when carousel 14 rotates, constantly downward butt arc latch 51, first spring 53 constantly makes arc latch 51 reset, such design, when arc latch 51 locks arc locked groove 15 into, carousel 14 can not take place easily to rotate, thereby can carry out spacingly to handrail 11, make handrail 11 can not take place easily to rotate, such design is when the staff needs fold, can directly rotate handrail 11, handrail 11 can be automatic spacing. .

The rebounding mechanism comprises a mounting hole 54 communicated with the sliding hole 34, the mounting hole 54 and the sliding hole 34 are concentrically arranged, the diameter of the mounting hole 54 is larger than that of the sliding hole 34, a limiting block 55 fixedly connected with the rotating rod 33 is arranged in one side, away from the sucking disc 23, of the mounting hole 54 in a sliding mode, and a second spring 56 sleeved with the rotating rod 33 is arranged on one side, facing the sucking disc 23, of the limiting block 55.

With the design, when the suction cup 23 is not used for absorbing, the second spring 56 is used for stretching to drive the rotating rod 33 box to move away from one side of the suction cup 23, and drive the suction cup 23 to be accommodated in the installation cavity 2.

The positioning mechanism comprises a rotating part 6 fixedly connected with the center of the hollow rotating shaft 41, a first locking hole 61 and a second locking hole 62 are formed in the outer surface of the rotating part 6, the first locking hole 61 and the second locking hole 62 are distributed by taking the circle center of the rotating part 6 as the center, a fixed seat 63 is fixedly connected to the surface of the machine body 1, a step hole 64 is formed in the fixed seat 63 facing one side of the rotating part 6, a third spring 65 is arranged on the upper end face of the step hole 64, a T-shaped locking part 66 extending out of the step hole 64 is arranged on the lower side of the third spring 65, the T-shaped locking part 66 is matched with the first locking hole 61 and the second locking hole 62, and a pulling assembly matched with the T-shaped locking part 66 is arranged on the fixed seat 63.

Due to the design, when the T-shaped locking piece 66 is locked in the first locking hole 61, the rotating piece 6 can be limited, the hollow rotating shaft 41 cannot rotate, at the moment, the two hollow rods 42 are respectively positioned in the two placing grooves 4, when the two hollow rods 42 are required to extend out, the pulling assembly can be used for driving the T-shaped locking piece 66 to move upwards and be accommodated in the stepped hole 64, the third spring 65 is compressed until the T-shaped locking piece 66 moves out of the first locking hole 61, at the moment, the two hollow rods 42 can be rotated out of the placing grooves 4 until the position of the second locking hole 62 is matched with the position of the T-shaped locking piece 66, then the pulling assembly is released, the third spring 65 is expanded, the T-shaped locking piece 66 is driven to move downwards and extend out of the stepped hole 64 until the T-shaped locking piece 66 is locked in the second locking hole 62, the rotating piece 6 is limited, so that the hollow rod 42 is limited, when the hollow rods 42 are not required to be used, the T-shaped locking piece 66 is moved out of the second locking hole 62 and then locked in the first locking piece 61.

The pulling assembly comprises a pull rod 671, a sliding groove 67 communicated with the step hole 64 is formed in the surface of the fixing seat 63, one end of the pull rod 671 penetrates through the sliding groove 67 to be fixedly connected with a T-shaped locking piece 66, and the other end of the pull rod 671 is fixedly connected with a shifting block 68. A person may toggle block 68 upward, which via pull rod 671 causes T-lock 66 to move upward within stepped bore 64.

The hot air mechanism comprises a hollow cover 7 arranged outside the machine body 1, one end of a hollow rotating shaft 41 is communicated with the inside of the hollow cover 7, a hot air pipe 71 is assembled on the hollow cover 7, and a hot air fan 72 fixedly connected with the machine body 1 is assembled at the other end of the hot air pipe 71. When the air heater 72 starts to work, hot air can be injected into the hollow 7 by the overheating air pipe 71, so that the hot air enters the hollow rotating shaft 41.

The surfaces of one sides of the two hollow rods 42 far away from the air holes 44 are provided with anti-skid grains. Such a design may increase the friction on the upper surface of the hollow bar 42.

Rubber pads 73 are arranged at four corners of the lower side of the machine body 1. The design can reduce the impact force generated by the person running on the machine body 1 to the ground, and has the functions of shock absorption and sound attenuation.

The foregoing embodiments are merely illustrative of the principles of the present invention and its efficacy, and are not to be construed as limiting the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a folding treadmill, includes organism and handrail, handrail middle part is equipped with the control panel, its characterized in that: the machine body is characterized in that inner cavities are arranged at the left end and the right end of the front side of the machine body, rotary tables are rotatably assembled in the two inner cavities, a plurality of arc-shaped locking grooves are uniformly and annularly arranged on the side surfaces of the two rotary tables, limiting mechanisms matched with the arc-shaped locking grooves are assembled in the two inner cavities, the two ends of the handrail respectively extend into the two inner cavities and are fixedly connected with the centers of the two rotary tables, an installation cavity is arranged at the front end of the machine body, sliding plates are assembled in the installation cavity in a sliding mode, installation blocks are symmetrically arranged on the side, away from the center of the machine body, of each sliding plate in a left-right mode, sucking discs are assembled on the two installation blocks, the sucking discs are used for sucking the wall and the ground, an extending hole matched with the two sucking discs is arranged at the front end of the machine body, through holes penetrating through the sliding plates and communicated with the insides of the sucking discs are arranged on the sides of the sliding plates in a left-right mode, sliding rods are symmetrically arranged on the side, and the sides of the sliding plates are assembled with sealing plates in a sliding mode, the sealing plate is provided with sealing blocks which correspond to the two through holes one by one, the rear side of the sliding plate is rotatably provided with a rotating rod, the rotating rod is in threaded connection with the sealing plate, the machine body is provided with a sliding hole matched with the rotating rod, the rotating rod penetrates through the sealing plate and extends out of the sliding hole to be fixedly connected with a handle, the interior of the machine body is provided with a rebounding mechanism matched with the rotating rod, the bottom of the machine body is bilaterally and symmetrically provided with placing grooves, the machine body is rotatably provided with a hollow rotating shaft penetrating through the two placing grooves, two ends of the hollow rotating shaft are respectively provided with a positioning mechanism and a hot air mechanism, the two placing grooves are respectively provided with a hollow rod fixedly connected with the hollow rotating shaft, the surface of the hollow rotating shaft is provided with two air outlet holes respectively communicated with the interior of the hollow rod, the lower surfaces of the two hollow rods are respectively provided with a plurality of air holes, and the rebounding mechanism comprises a mounting hole communicated with the sliding hole, the mounting hole and the sliding hole are concentrically arranged, the diameter of the mounting hole is larger than that of the sliding hole, a limiting block fixedly connected with the rotating rod is arranged in one side, away from the sucker, of the mounting hole in a sliding mode, a second spring sleeved with the rotating rod is arranged on one side, facing the sucker, of the limiting block, the positioning mechanism comprises a rotating piece fixedly connected with the center of the hollow rotating shaft, a first locking hole and a second locking hole are formed in the outer surface of the rotating piece, the first locking hole and the second locking hole are distributed in a ninety-degree mode by taking the circle center of the rotating piece as the center, and a fixing seat is fixedly connected to the surface of the machine body, the fixing base is equipped with the step hole towards rotating piece one side, step hole up end is equipped with the third spring, third spring downside is equipped with the T shape latch fitting that stretches out the step hole, T shape latch fitting and first lockhole and second lockhole phase-match, the fixing base be equipped with T shape latch fitting assorted pulling subassembly, hot-blast mechanism is including setting up the hollow cover in the organism outside, hollow pivot one end and the inside intercommunication of hollow cover, hollow cover is equipped with the hot-blast main, the hot-blast main other end be equipped with organism fixed connection's air heater.

2. The folding treadmill of claim 1, wherein: stop gear is including the roof, the roof upper end be equipped with arc locked groove assorted arc latch fitting, roof downside bilateral symmetry be equipped with inner chamber inner wall fixed connection's telescopic link, two the telescopic link surface all overlaps and is equipped with first spring.

3. The folding treadmill of claim 1, wherein: the pulling assembly comprises a pull rod, a sliding groove communicated with the step hole is formed in the surface of the fixing seat, one end of the pull rod penetrates through the sliding groove to be fixedly connected with the T-shaped locking piece, and the other end of the pull rod is fixedly connected with a shifting block.

4. The folding treadmill of claim 1, wherein: and anti-skidding grains are arranged on the surface of one side, away from the air holes, of each hollow rod.

5. The folding treadmill of claim 1, wherein: and rubber pads are arranged at four corners of the lower side of the machine body.