CN211798533U - Nylon shaft sleeve of treadmill - Google Patents

Abstract

The utility model belongs to the technical field of the treadmill and specifically relates to a nylon axle sleeve of treadmill. The nylon axle sleeve of treadmill, including the treadmill main part, with the handrail components that the treadmill main part moves and connects, handrail components includes handrail, stand, folding portion is equipped with angle regulation's rotation axis, the treadmill main part includes the frame, states the frame middle part and is equipped with the slide, be equipped with in the slide with the slider that folding portion corresponds, the slider passes through the rotation axis with folding portion is articulated, the slider includes the slider main part and is located first nylon axle sleeve, second nylon axle sleeve in the slider main part, first nylon axle sleeve second nylon axle sleeve all have with the conical surface of slider main part inner wall contact. The first nylon shaft sleeve and the second nylon shaft sleeve with the conical surfaces enable the sliding block to be installed or maintained more easily, meanwhile, the rotating shaft and the sliding block are combined more tightly, and the sliding block has the beneficial effects of being quiet, smooth and not prone to damage during rotation.

Description

Nylon shaft sleeve of treadmill

Technical Field

The utility model belongs to the technical field of the treadmill and specifically relates to a nylon axle sleeve of treadmill.

Background

The traditional treadmill is designed according to the body state of normal motion of a human body, transplants the original outdoor exercise of people into the room, is convenient and expands the exercise space of people, and compared with the outdoor exercise, the treadmill brings more safety and comfort to people.

Referring to fig. 1, chinese utility model publication No. CN208943361U discloses a stand column rotation locking structure of a folding treadmill, which locks two stand columns respectively located on two opposite sides of the treadmill body, and is characterized in that: rotate locking structure and include wedge latch segment, axle sleeve and knob bolt, wedge latch segment fixed mounting is on the side of treadmill organism to have first inclined plane and be located the pivot on the first inclined plane, the axle sleeve cup joints in the pivot and can rotate in the pivot, have on axle sleeve and the first inclined plane terminal surface in opposite directions with first inclined plane assorted second inclined plane, stand fixed mounting is on the axle sleeve, the clearance between first inclined plane and the second inclined plane can be adjusted with the pivot spiro union to the knob bolt.

The rotating shaft of the running machine in the prior art has the defects of inconvenient installation and easy abrasion in use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a nylon axle sleeve of treadmill that has silence, smooth-going, not fragile when easy installation or maintenance, rotation.

For reaching the above advantage, the utility model provides a nylon axle sleeve of treadmill, including the treadmill main part, with the treadmill main part moves the handrail components who connects, handrail components includes handrail, stand, folding portion is equipped with angle regulation's rotation axis, the treadmill main part includes the frame, states the frame middle part and is equipped with the slide, be equipped with in the slide with the slider that folding portion corresponds, the slider passes through the rotation axis with folding portion is articulated, the slider includes the slider main part and is located first nylon axle sleeve, second nylon axle sleeve in the slider main part, first nylon axle sleeve second nylon axle sleeve all have with the conical surface of slider main part inner wall contact.

The utility model discloses an in one embodiment, the slider main part be equipped with respectively with first nylon axle sleeve first shaft groove, the second shaft groove that the second nylon axle sleeve corresponds, first shaft groove with be equipped with spacing portion between the second shaft groove, the rotating shaft tip is equipped with can dismantle the snap ring of connection, the rotation axis dorsad the one end of snap ring has the spacing ring, the both ends of first nylon axle sleeve respectively with spacing portion the spacing ring corresponds, the both ends of second nylon axle sleeve respectively with spacing portion the snap ring corresponds.

In an embodiment of the present invention, the inner diameter of the first nylon shaft sleeve is larger than the inner diameter of the second nylon shaft sleeve, and the conical surfaces of the first shaft groove and the second shaft groove are inclined inward.

In an embodiment of the present invention, the rotating shaft is provided with a plurality of radial limiting notches, the slider is provided with a limiting post corresponding to the limiting notch, and one end of the limiting post is provided with a return spring.

In an embodiment of the present invention, the frame further includes a first gas spring for driving the slider, and a second gas spring for rotating the folding portion, the first gas spring is respectively connected and fixed with the frame and the slider, and the second gas spring is respectively hinged with the frame and the column.

The utility model discloses an embodiment, the treadmill main part still includes the race area, is located the motor of race area rear end, the motor has outward and is connected fixed motor casing with the frame, the motor casing be equipped with the running takes the running-board of upper surface parallel and level.

In an embodiment of the present invention, the frame cover is fixed to the front end of the frame, and the frame cover and the motor casing are further used for supporting the treadmill.

In an embodiment of the present invention, the running belt is provided with a pair of rollers hinged to the two ends of the frame, the running belt sleeve is provided outside the rollers, the motor is used for driving the rollers to rotate, and the motor is provided with a driving belt connected to the roller.

In an embodiment of the present invention, the first gas spring and the second gas spring are both composed of a cylinder and a piston rod, and a button is disposed at an end of the piston rod.

In an embodiment of the utility model, this treadmill still includes and is used for controlling first air spring the controlling means of second air spring locking and/unblock, controlling means include with piston rod threaded connection's fixed cover, with fixed cover inside articulated drive block, be used for the pulling the drive block extrusion the wire of button, with many the switch that the wire is connected.

The utility model discloses in, first nylon axle sleeve, the second nylon axle sleeve that have the conical surface make the slider install or maintain more easily, make the rotation axis combine inseparabler with the slider simultaneously, have silence, smooth-going, not fragile beneficial effect during the rotation.

Drawings

Fig. 1 is a schematic structural view illustrating a pillar rotation locking structure of a folding treadmill according to the prior art.

Fig. 2 is a schematic structural view of a nylon shaft sleeve of a treadmill according to a first embodiment of the present invention.

Fig. 3 is a front view of the nylon bushing of the treadmill of fig. 2.

Fig. 4 is a bottom view of the motor housing of the nylon bushing of the treadmill of fig. 2.

Fig. 5 is a schematic view of a motor of a nylon bushing of the treadmill of fig. 2.

Fig. 6 is a cross-sectional view of the treadmill body showing the nylon bushing of the treadmill of fig. 2.

Fig. 7 is a schematic structural view of the upright post and the slide of the nylon bushing of the treadmill of fig. 2.

Fig. 8 is a schematic view showing the structure of the nylon bushing folded portion and the slider of the treadmill of fig. 2.

Fig. 9 is a cross-sectional view of a slider block of the nylon bushing of the treadmill of fig. 2.

Fig. 10 is a cross-sectional view of the nylon bushing fold and slider of the treadmill of fig. 2.

Fig. 11 is an exploded view of the slider of the nylon bushing of the treadmill of fig. 10.

Fig. 12 is an exploded view of the folded portion of the nylon bushing of the treadmill of fig. 10.

Fig. 13 is a cutaway view of the gas spring of the nylon bushing of the treadmill of fig. 2.

Fig. 14 is an enlarged view of a portion of the nylon bushing of the treadmill of fig. 13 at gas spring a.

Fig. 15 is a front view of the nylon bushing of the treadmill of fig. 2 folded at 0.

Fig. 16 is a front view of the nylon bushing of the treadmill of fig. 2 folded 82.

Fig. 17 is a front view of the nylon bushing of the treadmill of fig. 2 folded 120.

Fig. 18 is a front view of the nylon bushing of the treadmill of fig. 2 folded 20.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose of the present invention, the following detailed description will be given with reference to the accompanying drawings and preferred embodiments in order to provide the best mode, structure, features and effects according to the present invention.

Please refer to fig. 2, fig. 3, fig. 4, and fig. 5, the nylon shaft sleeve of the treadmill of the first embodiment of the present invention includes a treadmill body 1, and a handrail assembly 2 movably connected to the treadmill body 1, and is characterized in that the treadmill body 1 includes a running belt 11, and a motor 12 located at the rear end of the running belt 11, the motor 12 is provided with a motor housing 13, the motor housing 13 is provided with a pedal 131 flush with the upper surface of the running belt 11, the bottom of the motor housing 13 is provided with a heat dissipation hole 132, the heat dissipation hole 132 is used for dissipating heat of the motor 12, and the motor housing 13 is further provided with a control circuit board 133 for controlling the motor 12.

Treadmill main part 1 still includes and is connected fixed frame 14 with motor casing 13, and frame 14 upper surface is equipped with slipmat 141, and motor casing 13 is located the both sides of running-board 131 and the parallel and level of slipmat 141. A water drop type frame cover 142 is fixed at the front end of the frame 14, and the frame cover 142 and the motor casing 13 are also used for supporting the treadmill.

Referring to fig. 6, the running belt 11 is provided with a pair of rollers 15 respectively hinged to two ends of the frame 14, the running belt 11 is sleeved outside the pair of rollers 15, the motor 12 is used for driving the rollers 15 to rotate, and the motor 12 is provided with a driving belt 121 in transmission connection with the rollers 15. A running board 16 for shock absorption is provided between the pair of rollers 15.

Referring to fig. 7, 8 and 9, the armrest assembly 2 includes an armrest 21, a pillar 22, and a folding portion 23 located at a lower end of the pillar 22, wherein the folding portion 23 is provided with a rotating shaft 231 capable of adjusting an angle, and the rotating shaft 231 is provided with a plurality of radial limiting notches 232. The middle of the frame 14 is provided with a slide way 143, a slide block 17 corresponding to the folding part 23 is arranged in the slide way 143, the slide block 17 is hinged with the folding part 23 through a rotating shaft 231, the slide block 17 is provided with a limit column 171 corresponding to the limit notch 232, and one end of the limit column 171 is provided with a return spring 172. When the position-limiting column 171 is partially accommodated in the position-limiting notch 232, the resistance of the rotation of the rotating shaft 231 is increased; when the stopper posts 171 are pushed out of the stopper notches 232, resistance to rotation of the rotary shaft 231 is reduced. The sound and damping generated by the rotation shaft 231 during the rotation of the folder 23 contribute to the precise adjustment of the angle.

Slide holes 23a corresponding to the folding portions 23 are opened on the outer side of the frame 14, and the slide holes 23a are used for the rotation shaft 231 to move along the length direction of the frame 14.

Referring to fig. 10, 11 and 12, the slider 17 includes a slider main body 17a, and a first nylon bushing 18a and a second nylon bushing 18b located in the slider main body 17a, and the first nylon bushing 18a and the second nylon bushing 18b both have a tapered surface a contacting with an inner wall of the slider main body 17 a.

The slider body 17a is provided with a first shaft groove 17b and a second shaft groove 17c corresponding to the first nylon shaft sleeve 18a and the second nylon shaft sleeve 18b respectively, a limiting portion 17d is arranged between the first shaft groove 17b and the second shaft groove 17c, a detachable clamping ring 19a is arranged at the end portion of the rotating shaft 231, a limiting ring 231a is arranged at one end of the rotating shaft 231, which is opposite to the clamping ring 19a, two ends of the first nylon shaft sleeve 18a correspond to the limiting portion 17d and the limiting ring 231a respectively, and two ends of the second nylon shaft sleeve 18b correspond to the limiting portion 17d and the clamping ring 19a respectively. The rotary shaft 231 is provided with a catching groove 20a that can receive a portion of the catching ring 19 a.

First nylon axle sleeve 18a, second nylon axle sleeve 18b are made by nylon, and nylon has advantages such as wear-resisting, mechanical strength is high, chemical stability is good, light in weight. The first nylon bushing 18a has an inner diameter greater than that of the second nylon bushing 18 b. The tapered surfaces a of the first nylon bushing 18a and the second nylon bushing 18b are inclined toward the inside of the slider body 17 a. The inner walls of the first nylon bush 18a and the second nylon bush 18b are bonded to the outer wall of the rotary shaft 231, and a gap is provided between the rotary shaft 231 and the slider body 17 a. The nylon bush is used to reduce friction between the rotary shaft 231 and the slider 17.

In the process of installing the armrest assembly 2, the first nylon shaft sleeve 18a and the second nylon shaft sleeve 18b in the slider main body 17a are placed in the first shaft groove 17b and the second shaft groove 17c, and the conical surfaces a of the first nylon shaft sleeve 18a and the second nylon shaft sleeve 18b face the slider main body 17a during placement, so that the installation is convenient; then, the rotating shaft 231 is inserted into the slider 17, so that the limit ring 231a of the rotating shaft 231 limits the first nylon bushing 18a to move axially along the rotating shaft 231; finally, the snap ring 19a is fixed in the snap groove 20a, so that the snap ring limits the axial movement of the second nylon shaft sleeve 18b and also limits the axial movement of the rotating shaft 231, and the installation is completed.

In the process of rotating the folding part 23, the rotating shaft 231 is hinged with the sliding block 17 through the first nylon shaft sleeve 18a and the second nylon shaft sleeve 18b, and a certain gap is kept between the rotating shaft 231 and the sliding block main body 17a, so that the abrasion between the rotating shaft 231 and the sliding block 17 is reduced, and the treadmill has the beneficial effects of being silent, smooth and not easy to damage when being folded.

Referring to fig. 13 and 14, the frame 14 includes a first air spring 3 for driving the sliding block 17, one end of the first air spring 3 is fixedly connected to the frame 14, and the other end of the first air spring 3 is fixedly connected to the sliding block 17. The frame 14 further comprises a second gas spring 3a hinged to the bottom of the frame 14, below the upright 22 near the fold 23, respectively, the second gas spring 3a being adapted to drive the upright 22 to rotate the fold 23.

Referring to fig. 15, 16, 17 and 18, when the first gas spring 3 is fully extended and the second gas spring 3a is fully compressed, the frame 14 and the upright post 22 are at 0 °, the rotating shaft 231 is located at the front end of the sliding hole 23a, and the armrest 21 overlaps the frame 14, so that the treadmill is in a horizontal storage state; when the first gas spring 3 is fully compressed and the second gas spring 3a is fully extended, the frame 14 and the upright post 22 are at 120 degrees, the rotating shaft 231 is located at the rear end of the sliding hole 23a, the handrail 21 is located above the front part of the frame 14, and the treadmill is in a running state; when the first gas spring 3 is partially compressed or extended and the second gas spring 3a is partially compressed or extended, the frame 14 and the upright post 22 are at 82 degrees, and the handrail 21 is positioned above the middle part of the frame 14, at this time, the treadmill is in a middle walking and/or back walking state; when the frame 14 is at 20 ° to the upright 22 and the arm rests 21 are above the rear of the frame 14, the treadmill is in an upright storage position.

The first gas spring 3 and the second gas spring 3a are both composed of a cylinder 31 and a piston rod 32, and a button 33 is arranged at the end of the piston rod 32. The piston rod 32 of the second gas spring 3a is provided with a first connecting piece 321, the piston rod 32 is hinged with the frame 14 through the first connecting piece 321, the cylinder body 31 of the second gas spring 3a is provided with a second connecting piece 311, and the cylinder body 31 is hinged with the upright post 22 through the second connecting piece 311.

The treadmill also comprises a control device 4 for controlling the locking and/or unlocking of the first and second gas springs 3, 3a, the control device 4 comprising a fixed sleeve 41 in threaded connection with the piston rod 32, a driving block 42 hinged inside the fixed sleeve 41, a wire 43 for pulling the driving block 42 to squeeze the button 33, and a switch 5 connected to a plurality of said wires 4. The fixing sleeve 41 is provided with a through hole 411 corresponding to the wire 43.

When the driving block 42 presses the button 33, the first and second gas springs 3 and 3a are in an unlocked state, and when the driving block 42 releases the pressing of the button 33, the first and second gas springs 3 and 3a are in a locked state.

In the use process, for example, when the frame 14 and the upright post 22 are at 82 degrees, and the handrail 21 is located above the middle part of the frame 14, the treadmill can be used for walking backwards and forwards simultaneously, two users are respectively located at two sides of the handrail 21, after the motor is started, one user walks forwards and the other user walks backwards, and during the forward walking process, the foot board 131 is flush with the upper surface of the running belt 11, so that the danger caused by hitting the heel is avoided. The pedal 131 can also prevent the user from stepping empty, thus ensuring the use safety of the user. And the user who falls away because the motor is rearmounted and do not have running-board 131, in the in-process that falls away, can not hinder the heel, avoided falling down because of the different probably that cause of instep frictional force.

In the process of folding or unfolding the armrest assembly 2, the switch 5 pulls the wire 43 to enable the driving block 42 to press the button 33, the first gas spring 3 and the second gas spring 3a are unlocked simultaneously, then the angle of the upright post 22 relative to the frame 14 can be adjusted, the armrest 21 is pushed or pulled, the upright post 22 is rotated to a proper position, the wire 43 is released, the button 33 automatically rebounds under the action of the internal pressure of the cylinder 31, and the first gas spring 3 and the second gas spring 3a are locked simultaneously, so that the rotation of the upright post 22 is limited.

The utility model discloses in, through the rearmounted motor, make this treadmill have simultaneously just walk and fall away, fall away safer beneficial effect.

The utility model discloses in, the slider passes through the rotation axis with the folding portion is articulated, makes this treadmill have the beneficial effect of adjustable stand angle and handrail position.

The utility model discloses in, first nylon axle sleeve, the second nylon axle sleeve that has the conical surface make the slider install or maintain more easily, make the rotation axis combine inseparabler with the slider simultaneously, have silence, smooth-going, not fragile beneficial effect during the rotation.

The utility model discloses in, can prevent through first nylon axle sleeve, second nylon axle sleeve that this slider is too big and rock about what cause in the clearance of axis of rotation, make the in-process at folding handrail assembly more stable.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed with the preferred embodiment, it is not limited to the present invention, and any skilled person can make modifications or changes equivalent to the above embodiments without departing from the scope of the present invention, but all the modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are within the scope of the present invention.

Claims (10)

1. The utility model provides a nylon axle sleeve of treadmill, including the treadmill main part, with the handrail components that the treadmill main part moves and connects, handrail components includes handrail, stand, folding portion is equipped with angle regulation's rotation axis, the treadmill main part includes the frame, states the frame middle part and is equipped with the slide, be equipped with in the slide with the slider that folding portion corresponds, the slider passes through the rotation axis with folding portion is articulated, its characterized in that, the slider includes the slider main part and is located first nylon axle sleeve, second nylon axle sleeve in the slider main part, first nylon axle sleeve second nylon axle sleeve all have with the conical surface of slider main part inner wall contact.

2. The nylon shaft sleeve of the treadmill according to claim 1, wherein the slider body is respectively provided with a first shaft groove and a second shaft groove corresponding to the first nylon shaft sleeve and the second nylon shaft sleeve, a limiting portion is disposed between the first shaft groove and the second shaft groove, a detachably connected snap ring is disposed at an end of the rotating shaft, a limiting ring is disposed at one end of the rotating shaft, which faces away from the snap ring, two ends of the first nylon shaft sleeve respectively correspond to the limiting portion and the limiting ring, and two ends of the second nylon shaft sleeve respectively correspond to the limiting portion and the snap ring.

3. The nylon bushing of claim 2, wherein the first nylon bushing has an inner diameter greater than an inner diameter of the second nylon bushing, and wherein the tapered surfaces of the first and second grooves are inwardly tapered.

4. The nylon bushing of a treadmill of claim 1, wherein the rotation shaft is provided with a plurality of radial limit notches, the sliding block is provided with limit posts corresponding to the limit notches, and one end of the limit posts is provided with a return spring.

5. The nylon shaft sleeve of a treadmill of claim 1, wherein the frame further comprises a first gas spring for driving the sliding block and a second gas spring for rotating the folding portion, the first gas spring is fixedly connected with the frame and the sliding block, respectively, and the second gas spring is hinged with the frame and the upright, respectively.

6. The nylon bushing of a treadmill of claim 1, wherein the treadmill body further comprises a running belt, a motor located at the rear end of the running belt, the motor is externally provided with a motor housing fixedly connected with the frame, and the motor housing is provided with a pedal plate flush with the upper surface of the running belt.

7. The nylon bushing of claim 6, wherein the front end of the frame is fixed with a water drop-shaped frame cover, and the frame cover and the motor housing are further used for supporting the treadmill.

8. The nylon shaft sleeve of the running machine as claimed in claim 6, wherein the running belt is provided with a pair of rollers hinged to two ends of the frame, the running belt is sleeved outside the pair of rollers, the motor is used for driving the rollers to rotate, and the motor is provided with a transmission belt in transmission connection with the rollers.

9. The nylon bushing of treadmill of claim 5, wherein the first gas spring and the second gas spring are both comprised of a cylinder body and a piston rod, and a button is disposed at an end of the piston rod.

10. The nylon bushing of a treadmill of claim 9, further comprising a control device for controlling the locking and/or unlocking of the first and second gas springs, the control device comprising a harness threadedly coupled to the piston rod, a drive block hingedly coupled to an interior of the harness, a wire for pulling the drive block to compress the button, and a switch coupled to the plurality of wires.

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