CN115779337A

CN115779337A - Self-detection anti-tumble protection device for treadmill

Info

Publication number: CN115779337A
Application number: CN202211442133.5A
Authority: CN
Inventors: 张嵘
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2023-03-14
Also published as: CN112221071A; CN112221071B

Abstract

The invention discloses a self-detection anti-falling injury protection device for a treadmill, which is characterized in that: this self-detecting prevents tumble injury protection device for treadmill includes speed self-adaptation mechanism, falls interception mechanism and falls protection mechanism, it sets up on speed self-adaptation mechanism to fall interception mechanism, fall protection mechanism sets up inside speed self-adaptation mechanism. The speed self-adaptive mechanism automatically adjusts the rotating speed according to the running speed of the user, the falling interception mechanism prevents the user from slipping in the running process of the user, and the falling protection mechanism provides protection for the user when the user falls.

Description

Self-detection anti-tumble protection device for treadmill

Technical Field

The invention relates to the technical field of running machines, in particular to a self-detection anti-falling injury protection device for a running machine.

Background

The treadmill is the simplest fitness equipment which is always provided for families and fitness rooms, and is the best choice of the family fitness equipment. In 1965, designers transformed and created the first global household running machine according to the principle of a transmission belt, and the running machine is divided into a mechanical running machine and an electric running machine; the mechanical running machine is driven by the friction force between the feet of a runner and the running belt to run, and the electric running machine is driven by the motor to run; the electric treadmill is a higher-grade apparatus of a gymnasium and a family, and the electric treadmill drives the running belt through the motor to enable a user to run or walk passively at different speeds, is almost the same as the user running or walking on the ground from the aspect of action appearance, but saves a pedaling and stretching action compared with the common running and walking from the aspect of human body strength, so that each person running on the electric treadmill can feel very relaxed and free, the user can run 1/3 more distance than the common running, and more energy can be consumed. In addition, through the electronic auxiliary equipment on the electric treadmill, the user can experience different running environments, such as flat ground running, uphill running, hill running, variable speed running, and the like, and can select according to the exercise purpose. When running, a user stands in the middle of the running belt, easily steps on the base when leaning forward, and is easily thrown out when leaning backward. Most of the traditional treadmills lack a protection device for protecting the sporter and cannot effectively avoid the sporter from being injured.

The existing anti-falling protection device of the treadmill has too simple structure to provide better protection for users, and has poor practicability; meanwhile, the existing anti-falling protection device of the running machine only depends on a single structure to realize protection, an alternative protection device is not used, and the protection efficiency is lower. Therefore, it is necessary to design a self-detecting anti-falling protection device for a treadmill, which can automatically adjust the rotation speed according to the running speed of a user and provide multi-layer protection for the user.

Disclosure of Invention

The invention aims to provide a self-detection anti-falling injury protection device for a treadmill, so as to solve the problems in the background technology.

In order to solve the technical problems, the invention provides the following technical scheme: the method is characterized in that: this self-detecting prevents tumble injury protection device for treadmill includes speed self-adaptation mechanism, falls interception mechanism and falls protection mechanism, fall interception mechanism sets up in speed self-adaptation mechanism top, fall protection mechanism sets up inside speed self-adaptation mechanism, and speed self-adaptation carries out the speed regulation of oneself according to user's running speed, falls interception mechanism and advances anti-skidding protection to the user through centrifugal force.

As a preferred technical scheme, the speed self-adaptive mechanism comprises a pressure sensing assembly and a rack, the pressure sensing assembly comprises a concave long plate, a magnetic force conversion assembly and a braking assembly, the pressure sensing assembly is arranged on the rack, and the concave long plate is arranged on two sides of the lower end of the rack; the falling intercepting mechanism comprises a buffer component and a limiting component, the buffer component and the limiting component are arranged on one side of the rack, and the buffer component is positioned below the limiting component; the fall protection mechanism comprises an electric reaction assembly, and the electric reaction assembly is arranged inside the concave long plate; the human effort to running the area when the pressure-sensitive component was run with the user turns into speed self-adaptation mechanism's speed governing power source, and the frame is as falling the strong point of spacing subassembly in the interception mechanism, and when falling the interception mechanism and not having played the effect, the inside electric reaction subassembly of falling protection mechanism starts and plays the guard action to falling the user on running the area.

As a preferred technical scheme, the limiting assembly comprises a centrifugal shaft, the centrifugal shaft comprises a rope winder, a main shaft is arranged inside the rope winder, a main tension belt is arranged outside the main shaft, a connector is arranged below the main tension belt, rotary rods are arranged at two ends of the main shaft, grooves are formed in the right sides of the rotary rods, a first multi-section telescopic rod is arranged on the right side of the main shaft, a balancing weight is arranged at the top end of the first multi-section telescopic rod, a cam shaft is arranged outside the rotary rods, a second multi-section telescopic rod is arranged inside two sides of the cam shaft, a tension rope is arranged inside the second multi-section telescopic rod, a plurality of limiting latch teeth are arranged outside the cam shaft, a limiting sleeve is sleeved on the cam shaft, a plurality of groups of latch teeth are arranged inside the limiting sleeve, gaps among the plurality of groups of latch teeth are clamping grooves, the upper half parts of the latch teeth can rotate, and non-newton fluid is arranged inside the latch teeth; the terminal receipts rope ware of main pulling force area is rotatory rapidly with the main shaft, the rotatory pole piece that drives the outside of main shaft is rotatory fast, the balancing weight is thrown away because of the effect of centrifugal force, tensile first multisection telescopic link, the inner wall of the camshaft in striking the rotary rod outside, make the camshaft stretch out, the spacing latch card in its outside is gone into on the draw-in groove of spacing sleeve inner wall, the latch atress, inside non-Newton fluid sclerosis, the rotation of restriction latch first half, block spacing latch stop rotatory promptly and receive the rope ware stop rotatory, main pulling force area stops to stretch out the pulling user, prevent that the user from falling down and be injured, after spacing, non-Newton fluid resumes liquidity under the condition of not atress, the first half rotation of latch is derived spacing latch, the automatic shrink of pulling force rope is with camshaft pull back cancellation spacing.

As a preferred technical scheme, the buffer assembly is arranged in the center of the main tension belt and comprises a compression rod, an upper shell is arranged on the outer side of the compression rod, a lower shell is arranged inside the upper shell, an oil separation plate is arranged inside the lower shell, a solution is arranged inside the lower shell, a through hole is formed in the bottom end of the oil separation plate, and the lower part of the lower shell is connected with the main tension belt; when spacing subassembly started, when preventing the pulling force area and removing, main pulling force area pulling depression bar shifts up in the casing down, through the terminal through-hole of oil interceptor with the hydraulic oil suction in the inboard of oil interceptor in the outside, realizes local vacuum in the both sides of oil interceptor, compresses the air through the replacement of hydraulic oil in oil interceptor both sides, cushions the power that main pulling force area receives.

As a preferred technical scheme, the left end and the right end of the concave long plate are respectively provided with a rotating shaft, the outer sides of the two rotating shafts are respectively provided with a running belt, the inner side of the running belt is provided with an elastic expansion plate, the magnetic assembly is arranged at the lower end of the elastic expansion plate, the magnetic force conversion assembly comprises an induction shaft, a force transmission assembly and a conversion assembly, the induction shaft is arranged at the lower end of the elastic expansion plate, the force transmission assembly is arranged below the induction shaft, the force transmission assembly is arranged above the conversion assembly, the conversion assembly is arranged at one side of the rotating shaft, the induction shaft comprises a magnetic cylinder and a magnetic rod, one end of the magnetic rod is arranged at the lower end of the elastic expansion plate, the magnetic rod is arranged inside the magnetic cylinder, and the magnetic rod and the magnetic cylinder have the same magnetism; a magnetism section of thick bamboo plays the spacing effect of axial to the magnetic pole, when the user runs on the area of running, rely on self gravity to the area of running and the elasticity expansion plate of the area below of running exert pressure, the elasticity expansion plate stretches out and makes the magnetic pole of its lower extreme slide in a magnetism section of thick bamboo and move down, compare in current structure, through the characteristic that magnetic substance repellent each other at the same level the friction of magnetic pole when the magnetic pole removes in a magnetism section of thick bamboo greatly reduced, the reaction sensitivity of device has been improved.

According to a preferable technical scheme, the force transmission assembly comprises a first magnetic strip, the first magnetic strip is arranged at the other end of the magnetic rod, the cathode of the first magnetic strip faces upwards, connecting plates are arranged on two sides of the first magnetic strip and arranged in the rack, a second magnetic strip is arranged at the top end of the connecting plates, the anode of the second magnetic strip faces downwards, the magnetic cylinder is arranged above the second magnetic strip, a tension rope is correspondingly arranged at the lower end of the first magnetic strip, a third magnetic strip is arranged at the other end of the tension rope, the anode of the third magnetic strip faces upwards, a sliding rod is arranged in the center of the third magnetic strip, and a limiting plate is arranged at the top end of the sliding rod; when the magnetic pole moved down, drive the mutual attraction that its terminal first magnetic stripe broke away from the second magnetic stripe, slide in the inside of connecting plate and move down, the third magnetic stripe that promotes first magnetic stripe below through the principle that magnetic substance homopolarity is repulsive slides in the outside of slide bar and moves down, when the user is not exerting pressure to the running belt, the first magnetic stripe rebound of second magnetic stripe attraction, pulling force rope through first magnetic stripe lower extreme drives third magnetic stripe rebound, so relapse, the effect of limiting plate lies in the displacement who limits the third magnetic stripe, repel each other through magnetic substance and inhale the conduction of carrying out power, reduce the loss of energy simultaneously.

According to a preferable technical scheme, the conversion assembly comprises a first spring, the upper end of the first spring is fixed with the lower end face of the third magnetic strip, a trapezoidal magnetic sleeve is arranged at the lower end of the first spring, the cathode of the trapezoidal magnetic sleeve faces upwards, second connecting rods are respectively arranged on two sides of the trapezoidal magnetic sleeve, and a small ball is arranged at one end, in contact with the trapezoidal magnetic sleeve, of each second connecting rod; when the third magnetic stripe is pushed to move downwards by the first magnetic stripe, the first spring below the third magnetic stripe is compressed, the trapezoidal magnetic sleeve is pushed to move downwards by the spring, the small ball which is in sliding connection with the outer side of the trapezoidal magnetic sleeve is pushed to move downwards by the trapezoidal magnetic sleeve, the second connecting rod is pushed to move by the small ball, and the up-and-down moving acting force of the trapezoidal magnetic sleeve is converted into the left-and-right moving acting force of the second connecting rod.

According to a preferable technical scheme, an arc-shaped friction plate is arranged at the other end of the second connecting rod, a wear-resistant elastic adhesive film is arranged at one end, away from the second connecting rod, of the arc-shaped friction plate, two groups of third connecting rods are arranged on the end face, close to the second connecting rod, of the wear-resistant elastic adhesive film, a sliding shell is arranged at the central position of the wear-resistant elastic adhesive film and is located between the two groups of third connecting rods, an air cylinder is arranged in a groove of the arc-shaped friction plate, one end of the air cylinder is located between the two groups of third connecting rods, a push rod is arranged on the air cylinder, the other end of the push rod penetrates through the sliding shell, a limiting clamping tooth group is arranged at one end, located inside the sliding shell, third springs are arranged on two sides of the limiting clamping tooth group, and the other ends of the two groups of third springs are fixed with the sliding shell; when the arc friction plate is contacted with the rotating shaft more, the wear-resistant elastic adhesive film is extruded to enable the third connecting rod to move rightwards, the tail end of the third connecting rod is connected with the cylinder switch in a sliding mode, the switch of the cylinder is opened, the push rod is pushed out when the cylinder is started, the limiting clamping tooth group is clamped between the gear teeth on the outer side of the rotating shaft, the rotating shaft is enabled not to rotate any more, so that the running belt stops rapidly, and after the running belt stops, the third springs on two sides of the limiting clamping tooth group shrink and pull back the running belt.

According to a preferable technical scheme, the electric reaction assembly comprises a magnetic block, one end of the magnetic block is provided with a lead, a soft iron strip is arranged on the inner side of the lead, an iron block is arranged on one side of the soft iron strip, a switch is arranged in the center of the right side of the iron block, a second spring is arranged above the right side of the iron block, a reaction tank is arranged inside the rack and electrically connected with the switch, an elastic air bag is sleeved on the outer side of the reaction tank, and sodium nitride and ferric oxide powder are arranged inside the reaction tank; when a user starts a power supply of the running machine and starts running, the running belt moves on the inner side of the concave long plate, the magnetic blocks arranged at the upper end and the lower end inside the concave long plate are used, the running belt performs cutting magnetic induction line motion between the two magnetic blocks to generate current, the soft iron strip is electrified to become an electromagnet, the iron block on one side of the soft iron strip is attracted, the second spring on the right side of the iron block is stretched, when the user suddenly falls down in the running process, the limiting clamping tooth group in the arc-shaped friction plate clamps the rotating shaft to stop the running belt from moving, the soft iron strip is demagnetized to loose the attraction on the iron block, the second spring contracts to rebound to drive the iron block to move right, the second spring excessively rebounds through inertia generated by the iron block moving right, the switch is closed, the circuit is conducted, current in the reaction tank passes through, sodium nitride is electrified to be decomposed into sodium and nitrogen, the generated nitrogen accounts for 78% of the gas content in the elastic air bag, the nitrogen is harmless to the human body, the elastic air bag instantly expands to protect the fallen user, and reduce injuries, and the sodium oxide generated by using the iron oxide as an oxidant to change the sodium oxide generated in a reaction into sodium oxide injury to the user.

As a preferred technical scheme, a plurality of short shafts are uniformly arranged on the inner side of the elastic air bag, an L-shaped connecting plate is arranged on the surface of each short shaft, a fan cover is arranged on the outer side of each L-shaped connecting plate, and an air groove is formed in the surface of each fan cover; when the user fell down on elastic airbag, rely on the action of gravity extrusion elastic airbag of self for the interior nitrogen gas of elastic airbag blows L type connecting plate after receiving the extrusion, makes L type connecting plate rotate the wind channel extrusion of seting up nitrogen gas through the fan housing surface, and sound is played the warning effect.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the invention, the induction shaft and the magnetic force conversion assembly are arranged, and the magnetic cylinder has a limiting effect on the axial displacement of the magnetic rod, so that the pressure borne by the magnetic rod is completely transmitted to the magnetic force conversion assembly below the magnetic rod, the longitudinal force borne by the magnetic force conversion assembly is converted into the axial force for decelerating the rotating shaft, and the friction in the operation process is reduced and the reaction sensitivity of the device is improved by utilizing the principle that like poles of magnetic substances repel each other;

2. according to the invention, by arranging the first magnetic stripe, the second magnetic stripe, the third magnetic stripe, the elastic expansion plate, the second connecting rod, the small ball and the arc-shaped friction plate, when a user runs, the elastic expansion plate is continuously and instantly pressed, so that the arc-shaped friction plate is repeatedly contacted with the rotating shaft, and the heat is continuously absorbed, and meanwhile, the contact time of the arc-shaped friction plate and the rotating shaft is also continuously adjusted according to the running pace frequency of the user, so that the rotating speed is automatically adjusted, and the user is fundamentally prevented from slipping;

3. according to the invention, by arranging the limiting clamping tooth group, the rotating shaft, the air cylinder and the third connecting rod, when the arc-shaped friction plate is in more contact with the rotating shaft, the wear-resistant elastic adhesive film is extruded to enable the third connecting rod to move rightwards to open a switch of the air cylinder, the air cylinder is started to push out the push rod, the limiting clamping tooth group is clamped between the gear teeth on the outer side of the rotating shaft, so that the rotating shaft does not rotate any more, the running belt is rapidly stopped, and after the running belt stops, the third springs on the two sides of the limiting clamping tooth group contract to pull back the third springs, compared with the stopping of a manual operation conveying belt in the existing structure, the device can realize that the running belt automatically stops when a user falls down on the running belt, so that the running belt is prevented from causing secondary injury to the user;

4. in the invention, by arranging the buffer component, when the user is limited by the limiting component in the falling process, the buffer component can slow down the instant acting force of the limiting component on the user, so that the falling process is slowed down, and the user is protected;

5. according to the invention, by arranging the shoulder strap, the main tension rope, the main shaft, the rotary rod, the cam shaft and the limiting latch, a user winds the protective belt around the waist before running, buckles the two arms of the protective belt to penetrate through the shoulder strap to start running, when the user falls down due to foot twisting or unstable gravity in the running process, the shoulder strap and the main tension belt are rapidly pulled to drive the rope collector at the tail end of the main tension belt and the main shaft to rapidly rotate, the main shaft rotates to drive the rotary rod at the outer side to rapidly rotate, the counterweight block is thrown out due to the action of centrifugal force, the first multi-section telescopic rod is stretched to impact the inner wall of the cam shaft at the outer side of the rotary rod, so that the cam shaft extends and moves, the limiting latch at the outer side of the cam shaft is clamped into the clamping groove at the inner wall of the limiting sleeve to limit the rotation, the limiting sleeve stops rotating, namely the rope collector stops rotating, the main tension rope and the shoulder strap stop extending to pull the user, and prevent the user from falling down and being injured;

6. according to the invention, by arranging the limiting assembly, due to instant impact force when a user falls down, non-Newtonian fluid in the latch hardens, the rotation of the upper half part of the latch is limited to clamp the limiting latch, the rope collecting device stops rotating, the main tension rope and the braces stop extending and pulling the user, so that the user is prevented from falling down and being injured;

7. according to the invention, by arranging the magnetic block, the lead, the soft iron strip, the switch, the second spring, the elastic air bag and the reaction tank, when a user starts the power supply of the treadmill and starts running, compared with the prior structure in which the elastic cushion plate is additionally arranged behind the running belt to protect the user, the user protection device can more comprehensively protect the user who falls down by enabling the elastic air bag to extend out when the user falls down.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic perspective view of a treadmill of the present invention;

FIG. 2 is a front cross-sectional structural schematic view of the pressure sensing assembly of the present invention;

FIG. 3 is a front cross-sectional structural schematic view of the brake assembly of the present invention;

FIG. 4 is a perspective view of the protective belt of the present invention;

FIG. 5 is a side cross-sectional structural schematic view of the spacing assembly of the present invention;

FIG. 6 is a schematic perspective view of a portion of an electric reaction module according to the present invention;

FIG. 7 is a front cross-sectional structural view of FIG. 6 of the present invention;

FIG. 8 is a circuit diagram of an electro-reaction module of the present invention;

FIG. 9 is an enlarged view of portion A of FIG. 3 according to the present invention;

FIG. 10 is an enlarged view of portion B of FIG. 8 in accordance with the present invention;

FIG. 11 is a front cross-sectional structural schematic view of a cushion assembly of the present invention.

In the figure: 1. a speed adaptive mechanism; 2. a tumble intercepting mechanism; 3. a fall protection mechanism; 101. a frame; 104 a concave long plate; 105. a rotating shaft; 106. a running belt; 107. an elastic expansion plate; 108. a magnetic cylinder; 109. a magnetic rod; 110. a first magnetic stripe; 111. a connecting plate; 112. a second magnetic stripe; 113. a third magnetic stripe; 114. a slide bar; 115. a limiting plate; 116. a trapezoidal magnetic sleeve; 117. a first spring; 118. a small ball; 119. a second connecting rod; 120. a tension rope; 121. an arc-shaped friction plate; 122. a wear-resistant elastic adhesive film; 123. a third connecting rod; 124. a limiting clamping tooth group; 125. a cylinder; 126. a third spring; 200. buckling; 201. protecting the belt; 202. a flexible protective shell; 203. a harness; 204. a primary tension band; 205. a main shaft; 206. rotating the rod; 207. a first multi-section telescopic rod; 208. a counterweight block; 209. a camshaft; 210. limiting latch teeth; 211. a limiting sleeve; 212. a card slot; 213. an upper housing; 214. a pressure lever; 215. a lower housing; 216. an oil removal plate; 300. a magnetic block; 301. a wire; 302. a soft iron strip; 303. an iron block; 304. a switch; 305. a reaction tank; 306. an elastic air bag; 307. a second spring; 308. an L-shaped connecting plate; 309. a fan housing; 310. a minor axis.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, the present invention provides the following technical solutions: the utility model provides a self-detecting prevents tumble injury protection device for treadmill which characterized in that: this self-detecting prevents tumble injury protection device for treadmill includes speed adaptive mechanism 1, falls interception mechanism 2 and falls protection mechanism 3, falls interception mechanism 2 and sets up in 1 top of speed adaptive mechanism, falls protection mechanism 3 and sets up inside 1 of speed adaptive mechanism, and speed adaptive mechanism 1 carries out the speed regulation of oneself according to user's running speed, falls interception mechanism 2 and advances anti-skidding protection to the user through centrifugal force.

The speed self-adaptive mechanism 1 comprises a pressure sensing assembly and a rack 101, the pressure sensing assembly comprises a concave long plate 104, a magnetic force conversion assembly and a braking assembly, the pressure sensing assembly is fixed on the rack 101, the concave long plate 104 is welded on two sides of the lower end of the rack 101, and the pressure sensing assembly converts the acting force of a human body on a running belt 106 when a user runs into a speed regulation power source of the speed self-adaptive mechanism 1;

the left end and the right end of the concave long plate 104 are respectively connected with a rotating shaft 105 through bearings, the outer sides of the two rotating shafts 105 are connected with a running belt 106 in a sliding mode, an elastic expansion plate 107 is fixed on the inner side of the running belt 106, a magnetic assembly is fixed at the lower end of the elastic expansion plate 107, the magnetic force conversion assembly comprises an induction shaft, a force transmission assembly and a conversion assembly, the induction shaft is bonded at the lower end of the elastic expansion plate 107 and fixed below the induction shaft, the force transmission assembly is located above the conversion assembly, the conversion assembly is located between the two rotating shafts 105, the induction shaft comprises a magnetic cylinder 108 and a magnetic rod 109, one end of the magnetic cylinder 108 is fixed at the lower end of the elastic expansion plate 107, the magnetic rod 109 is connected with the magnetic cylinder 108 in a sliding mode, and the magnetism of the magnetic rod 109 is the same as that of the magnetic cylinder 108; when a user runs on the running belt 106, the user presses the running belt 106 and the elastic expansion plate 107 below the running belt 106 by means of the self gravity, and the elastic expansion plate 107 extends out to enable the magnetic rod 109 at the lower end of the elastic expansion plate to slide and move downwards in the magnetic cylinder 108;

the force transmission assembly comprises a first magnetic strip 110, the first magnetic strip 110 is welded at the other end of the magnetic rod 109, the cathode of the first magnetic strip 110 faces upwards, two sides of the first magnetic strip 110 are slidably connected with connecting plates 111, the connecting plates 111 are fixed inside the rack 101, the top end of the connecting plates 111 is welded with a second magnetic strip 112, the anode of the second magnetic strip 112 faces downwards, the magnetic cylinder 108 is adhered above the second magnetic strip 112, the lower end of the first magnetic strip 110 is correspondingly fixed with a tension rope 120, the other end of the tension rope 120 is fixed above a third magnetic strip 113, the anode of the third magnetic strip 113 faces upwards, the central inside of the third magnetic strip 113 is slidably connected with the sliding rod 114, and the top end of the sliding rod 114 is welded with a limiting plate 115; when the magnetic rod 109 moves downwards, the first magnetic strip 110 at the tail end of the magnetic rod is driven to be separated from the mutual attraction of the second magnetic strips 112, the magnetic rod slides downwards in the connecting plate 111, the first magnetic strip 110 pushes the third magnetic strip 113 below the first magnetic strip 110 to slide downwards on the outer side of the sliding rod 114, when a user does not press the running belt 106, the second magnetic strip 112 attracts the first magnetic strip 110 to move upwards, the third magnetic strip 113 is driven to move upwards through the tension rope 120 at the lower end of the first magnetic strip 110, and therefore, repeatedly, the limiting plate 115 is used for limiting the moving distance of the third magnetic strip 113, the force is conducted through the repulsion and attraction of magnetic substances, and meanwhile, the energy loss is reduced;

the conversion assembly comprises a first spring 117, the upper end of the first spring 117 is fixed with the lower end face of the third magnetic stripe 113, the lower end of the first spring 117 is welded with a trapezoidal magnetic sleeve 116, the cathode of the trapezoidal magnetic sleeve 116 faces upwards, the brake assembly comprises a second connecting rod 119, the second connecting rod 119 is slidably mounted in the rack 101 and located on two sides of the trapezoidal magnetic sleeve 116, and a small ball 118 is welded at one end, in contact with the trapezoidal magnetic sleeve 116, of the second connecting rod 119; when the third magnetic stripe 113 is pushed by the first magnetic stripe 110 to move downwards, the first spring 117 below the third magnetic stripe 113 is compressed, the trapezoidal magnetic sleeve 116 is pushed to move downwards through the spring, the small ball 118 which is movably connected to the outer side of the trapezoidal magnetic sleeve 116 is pushed to move downwards through the trapezoidal magnetic sleeve 116, the second connecting rod 119 is pushed to move through the small ball 118, the acting force of the trapezoidal magnetic sleeve 116 which moves upwards and downwards is converted into the acting force of the second connecting rod 119 which moves leftwards and rightwards, namely, the longitudinal force applied to the pressure sensing mechanism is converted into the axial force required by the second connecting rod 119 through the magnetic force conversion component;

an arc-shaped friction plate 121 is fixed at the other end of the second connecting rod 119, a wear-resistant elastic adhesive film 122 is fixed on the inner side of the arc-shaped friction plate 121, a third connecting rod 123 is fixed on the right side of the wear-resistant elastic adhesive film 122, an air cylinder 125 is fixed at the other end of the third connecting rod 123, the third connecting rod 123 is rotatably connected with a switch of the air cylinder 125, a push rod is sleeved on the left side of the air cylinder 125, a limiting clamping tooth group 124 is welded at the other end of the push rod, and third springs 126 are respectively fixed on two sides of the limiting clamping tooth group 124; when the arc-shaped friction plate 121 is in contact with the rotating shaft 105 a lot, the wear-resistant elastic rubber film 122 is squeezed to enable the third connecting rod 123 to move rightwards to open the switch of the air cylinder 125, the air cylinder 125 is started to push out the push rod, the limiting latch group 124 is clamped between the gear teeth on the outer side of the rotating shaft 105, the rotating shaft 105 is enabled not to rotate any more, the running belt 106 is enabled to stop rapidly, and after the running belt 106 stops, the third springs 126 on the two sides of the limiting latch group 124 contract and pull back the running belt 106.

The falling interception mechanism 2 comprises a buffer component and a limiting component, the buffer component and the limiting component are mounted above the right side of the rack 101 through screws, the buffer component is fixed below the limiting component, and the rack 101 serves as a supporting point of the limiting component in the falling interception mechanism 2;

the limiting component comprises a centrifugal shaft, the centrifugal shaft comprises a rope collecting device, the interior of the rope collecting device is connected with a main shaft 205 through a bearing, the outer side of the main shaft 205 is wound and connected with a main tension belt 204, two ends of the main shaft 205 are fixed with rotating rods 206, the right side of the rotating rod 206 is provided with a groove, the right side of the main shaft 205 is welded with a first multi-section telescopic rod 207, the top end of the first multi-section telescopic rod 207 is welded with a balancing weight 208, the outer side of the rotating rod 206 is fixed with a cam shaft 209, the two sides of the cam shaft 209 are welded with second multi-section telescopic rods, the interior of the second multi-section telescopic rod is fixed with a tension rope 120, the outer side of the cam shaft 209 is processed through a machine tool to be provided with a plurality of limiting latch teeth 210, the cam shaft 209 is sleeved with a limiting sleeve 211, the interior of the limiting sleeve 211 is welded with a plurality of groups of latch teeth 210, and gaps among the plurality of groups of latch teeth 210 are clamping grooves 212, the upper half part of the latch 210 can rotate, non-Newtonian fluid is contained in the latch 210, the latch 210 is double-layer, the preferred shape of the latch 210 is conical and is obliquely fixed in the limiting sleeve 211, a connector is sewn at the tail end of the main tension belt 204 and comprises a back belt 203 sewn below the main tension belt 204, a flexible protective shell 202 is sleeved on the outer side below the main tension belt 204, a protective belt 201 is fixed at the lower end of the flexible protective shell 202, buckles 200 are respectively fixed at the head end and the tail end of the protective belt 201, the back belt 203 is sewn below the main tension belt 204, the flexible protective shell 202 is sleeved and installed below the main tension belt 204, the protective belt 201 is fixedly installed below the flexible protective shell 202, and the buckle 200 is fixedly installed at the tail end of the protective belt 201; before a user winds a protective belt 201 around the waist before running, buckles 200 with two arms to penetrate through a strap 203 to start running, when the user twists feet or falls down due to unstable gravity center in the running process, the strap 203 and a main tension belt 204 are pulled rapidly to drive a rope collector at the tail end of the main tension belt 204 and a main shaft 205 to rotate rapidly, the main shaft 205 rotates to drive a rotating rod 206 at the outer side to rotate rapidly, a balancing weight 208 is thrown out due to the action of centrifugal force, a first multi-section telescopic rod 207 is stretched to impact the inner wall of a cam shaft 209 at the outer side of the rotating rod 206, so that the cam shaft 209 extends out, a limiting latch 210 at the outer side of the limiting latch 210 is clamped into a clamping groove 212 at the inner wall of a limiting sleeve 211, the clamping latch 210 is stressed, the non-Newtonian fluid in the inner portion hardens to limit the rotation of the upper half portion of the clamping latch 210, namely the rope collector stops rotating, the main tension belt 204 and the strap 203 stops extending out to pull the user to prevent the user from falling down and being injured, and after the limiting is finished, the non-Newtonian fluid recovers to the liquid state under the condition that the upper half portion of the clamping latch 210 rotates to draw the limiting latch 210 out, and the limiting pull the limiting latch 209 to withdraw the limiting latch, and the limiting latch 209 automatically pulls the limiting latch 209;

the buffer assembly is fixed in the center of the main tension belt 204 and comprises a compression rod 214, the outer side of the compression rod 214 is connected with an upper shell 213 in a sliding mode, a lower shell 215 is welded inside the upper shell 213, an oil separation plate 216 is fixed inside the lower shell 215, the lower shell 215 contains solution, the solution is preferably hydraulic oil, a through hole is formed in the bottom end of the oil separation plate 216, and the lower portion of the lower shell 215 is connected with the main tension belt 204 in a sewing mode; when the limiting assembly is started to prevent the tension belt 204 from moving, the main tension belt 204 pulls the compression rod to move upwards in the lower shell 215, hydraulic oil 217 on the outer side is pumped into the inner side of the oil separation plate 216 through the through hole in the tail end of the oil separation plate 216, partial vacuum is achieved on two sides of the oil separation plate 216, air is compressed through displacement of the hydraulic oil on the two sides of the oil separation plate 216, and force borne by the main tension belt 204 is buffered.

The fall protection mechanism 3 comprises an electric reaction component which is fixed inside the concave long plate 104, and when the fall interception mechanism 2 has no effect, the electric reaction component inside the fall protection mechanism 3 is started to play a role in protecting a user falling on the running belt 106;

the electric reaction assembly comprises a magnetic block 300, a lead 301 is fixed at one end of the magnetic block 300, a soft iron strip 302 is wound and connected to the inner side of the lead 301, an iron block 303 is placed on the right side of the soft iron strip 302, a switch 304 is fixed at the center of the right side of the iron block 303, a second spring 307 is welded above the right side of the iron block 303, a reaction tank 305 is fixed inside the rack 101, the reaction tank 305 is electrically connected with the switch 304, an elastic air bag 306 is sleeved outside the reaction tank 305, and sodium nitride and ferric oxide powder are placed inside the reaction tank 305; when a user starts a power supply of the running machine and starts running, the running belt 106 moves on the inner side of the concave long plate 104, the magnetic blocks 300 fixed at the upper end and the lower end inside the concave long plate 104 are used, the running belt 106 cuts magnetic induction lines between the two magnetic blocks 300 to generate current, so that the soft iron bar 302 is electrified to become an electromagnet, the iron block 303 on the right side of the soft iron bar is attracted, the second spring 307 on the right side of the iron block is stretched, when the user suddenly falls down in the running process, the arc-shaped running plate 121 clamps the rotating shaft 105 to stop moving the running belt 106, the soft iron bar 302 is demagnetized to release attraction to the iron block 303, the second spring 307 contracts and rebounds to drive the iron block 303 to move right, the second spring 307 excessively rebounds due to inertia generated by the rightward movement of the iron block, the switch 304 is closed to conduct the circuit, current passes through the reaction tank, sodium trinitride is electrified to be decomposed into sodium and nitrogen, the elastic air bag 306 expands instantly to play a role in protecting the fallen user, injury is reduced, and the generated by the harmless sodium oxide reaction to the sodium oxide in the human body, and the sodium oxide is changed into harmless sodium oxide to avoid the harm to the user;

the inner side of the elastic air bag 306 is connected with a plurality of short shafts 310 through bearings, the surfaces of the short shafts 310 are welded with L-shaped connecting plates 308, the outer sides of the L-shaped connecting plates 308 are sleeved with air hoods 309, and the surfaces of the air hoods 309 are provided with air grooves; the interior nitrogen gas of elasticity gasbag 306 is through blowing L type connecting plate 308, when the user falls down on elasticity gasbag 306, relies on the gravity action extrusion elasticity gasbag 306 of self for nitrogen gas in the elasticity gasbag blows L type connecting plate 308 after receiving the extrusion, makes L type connecting plate 308 rotate and passes through the wind slot extrusion that the fan housing 309 surface was seted up with nitrogen gas, and sound is played the warning effect.

The working principle of the invention is as follows: the speed self-adaptive mechanism 1 has the function that the device can self-regulate the rotating speed, the falling interception mechanism 2 has the function of limiting the sliding of a user, and the falling protection mechanism 3 has the function of providing protection for the user;

the pressure sensing assembly converts the acting force of a human body on the running belt when the user runs into a speed regulation power source of the speed self-adaptive mechanism 1, the rack 101 is used as a supporting point of a limiting assembly in the falling intercepting mechanism 2, and when the falling intercepting mechanism 2 does not have an effect, an electric reaction assembly in the falling protection mechanism 3 is started to play a role in protecting the user falling on the running belt 106;

when a user runs on the running belt 106, the user presses the running belt 106 and the elastic expansion plate 107 below the running belt 106 by means of the self gravity, and the elastic expansion plate 107 extends out to enable the magnetic rod 109 at the lower end of the elastic expansion plate to slide and move downwards in the magnetic cylinder 108;

when the magnetic rod 109 moves downwards, the first magnetic strip 110 at the tail end of the magnetic rod is driven to be separated from the mutual attraction of the second magnetic strip 112 and slide downwards in the connecting plate 111, the first magnetic strip 110 pushes the third magnetic strip 113 below the first magnetic strip 110 to slide downwards on the outer side of the sliding rod 114, when a user does not apply pressure to the running belt 106, the second magnetic strip 112 attracts the first magnetic strip 110 to move upwards, the third magnetic strip 113 is driven to move upwards through the tension rope 120 at the lower end of the first magnetic strip 110, and therefore the limiting plate 115 is used for limiting the moving distance of the third magnetic strip 113, the force is conducted through the repulsion and attraction of magnetic substances, and the energy loss is reduced;

when the third magnetic stripe 113 is pushed by the first magnetic stripe 110 to move downwards, the first spring 117 below the third magnetic stripe 113 is compressed, the trapezoidal magnetic sleeve 116 is pushed to move downwards through the spring, the small ball 118 which is movably connected to the outer side of the trapezoidal magnetic sleeve 116 is pushed to move downwards through the trapezoidal magnetic sleeve 116, the second connecting rod 119 is pushed to move through the small ball 118, the acting force of the trapezoidal magnetic sleeve 116 which moves upwards and downwards is converted into the acting force of the second connecting rod 119 which moves leftwards and rightwards, and the longitudinal force applied to the pressure sensing mechanism is converted into the axial force required by the second connecting rod 119 through the magnetic force conversion component;

when the arc-shaped friction plate 121 is in more contact with the rotating shaft 105, the wear-resistant elastic adhesive film 122 is extruded to enable the third connecting rod 123 to move rightwards to open a switch of the air cylinder 125, the air cylinder 125 is started to push out the push rod, the limiting clamping tooth group 124 is clamped between the gear teeth on the outer side of the rotating shaft 105, the rotating shaft 105 does not rotate any more, so that the running belt 106 stops rapidly, and after the running belt 106 stops, the third springs 126 on the two sides of the limiting clamping tooth group 124 contract and pull back the running belt 106;

before a user runs, a protective belt 201 is wound around the waist, a buckle 200 is buckled with two arms to penetrate through a back belt 203 to start running, when the user falls down due to the fact that the user twists feet or the center of gravity is unstable in the running process, the back belt 203 and a main tension belt 204 are pulled rapidly to drive a rope collector at the tail end of the main tension belt 204 and a main shaft 205 to rotate rapidly, the main shaft 205 rotates to drive a rotating rod 206 on the outer side to rotate rapidly, a balancing weight 208 is thrown away by inertia due to the action of centrifugal force, a first multi-section telescopic rod 207 is stretched to impact the inner wall of a cam shaft 209 on the outer side of the rotating rod 206, so that the cam shaft 209 extends out, a limiting latch 210 on the outer side of the cam shaft is clamped into a clamping groove 212 on the inner wall of a limiting sleeve 211, the double-layer oblique conical column is stressed, non-Newtonian fluid inside becomes hard to limit the rotation of the upper half part of the double-layer oblique conical column, the limiting latch 210 stops rotating, the rope collector stops rotating, the main tension belt 204 and the back to the user to pull the limiting cable out, so as to prevent the user from falling, and the limiting latch 210 automatically withdraws the limiting rope from the limiting cable 209;

when the limiting assembly is started to prevent the tension belt 204 from moving, the main tension belt 204 pulls the compression rod to move upwards in the lower shell 215, hydraulic oil 217 on the outer side is pumped into the inner side of the oil separation plate 216 through a through hole at the tail end of the oil separation plate 216, local vacuum is realized on two sides of the oil separation plate 216, air is compressed through displacement of the hydraulic oil on the two sides of the oil separation plate 216, and force borne by the main tension belt 204 is buffered;

when a user starts a power supply of the running machine and starts running, the running belt 106 moves on the inner side of the concave long plate 104, the magnetic blocks 300 arranged at the upper end and the lower end inside the concave long plate 104 are used, the running belt 106 cuts magnetic induction line motion between the two magnetic blocks 300 to generate current, so that the soft iron bar 302 is electrified to become an electromagnet, the iron block 303 at one side of the soft iron bar is attracted, the second spring 307 at the right side of the iron block is stretched, when the user suddenly falls down in the running process, the arc-shaped friction plate 121 clamps the rotating shaft 105 to stop moving the running belt 106, the soft iron bar 302 is demagnetized to release attraction to the iron block 303, the second spring 307 is contracted and rebounded to drive the iron block 303 to move rightwards, inertia generated by rightwards moving of the iron block enables the second spring 307 to excessively rebound, the switch 304 is closed to conduct a circuit, current passes through the reaction tank 305, sodium trinitride is electrified to decompose into sodium and nitrogen, the sodium and nitrogen, so that the elastic air bag instantly expands to play a protection role on the fallen user, and the reduction of the falling, and the sodium oxide generated by the sodium generated by the reaction of the iron oxide as an oxidant to avoid injury to the user;

when the user falls down on elastic airbag 306, rely on the action of gravity extrusion elastic airbag 306 of self for nitrogen gas in the elastic airbag 306 blows L type connecting plate 308 after being extruded, makes L type connecting plate 308 rotate and extrudes nitrogen gas through the wind channel that fan housing 309 surface was seted up, and sound is played the warning effect.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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

Claims

1. The utility model provides a treadmill is with self-detecting protection device that prevents tumble injury which characterized in that: the self-detection anti-falling injury protection device for the treadmill comprises a speed self-adaptive mechanism (1), a falling interception mechanism (2) and a falling protection mechanism (3), wherein the falling interception mechanism (2) is arranged above the speed self-adaptive mechanism (1), the falling protection mechanism (3) is arranged inside the speed self-adaptive mechanism (1), the speed self-adaptive mechanism (1) adjusts the self-rotating speed according to the running speed of a user, and the falling interception mechanism (2) protects the user from sliding and falling through centrifugal force;

the speed self-adaptive mechanism (1) comprises a pressure sensing assembly and a rack (101), the pressure sensing assembly comprises a concave long plate (104), a magnetic force conversion assembly and a brake assembly, the magnetic force conversion assembly is connected with the brake assembly in a sliding mode, the pressure sensing assembly is arranged on the rack (101), and the concave long plate (104) is arranged on two sides of the lower end of the rack (101); the falling interception mechanism (2) comprises a buffer component and a limiting component, the buffer component and the limiting component are arranged on one side of the rack (101), the buffer component is positioned below the limiting component, and the buffer component is fixedly connected with the limiting component; the fall protection mechanism (3) comprises an electric reaction assembly which is arranged inside the concave long plate (104);

the limiting assembly comprises a centrifugal shaft, the centrifugal shaft comprises a rope winder, a main shaft (205) is arranged inside the rope winder, a main tension belt (204) is arranged on the outer side of the main shaft (205), a connector is arranged below the main tension belt (204), a buffering assembly is fixed in the center of the main tension belt (204), rotary rods (206) are arranged at two ends of the main shaft (205), grooves are formed in the right sides of the rotary rods (206), a first multi-section telescopic rod (207) is arranged on the right side of the main shaft (205), a balancing weight (208) is arranged at the top end of the first multi-section telescopic rod (207), a cam shaft (209) is arranged on the outer side of the rotary rod (206), a second multi-section telescopic rod is arranged inside two sides of the cam shaft (209), a tension rope (120) is arranged inside the second multi-section telescopic rod, a plurality of clamping teeth (210) are arranged outside the cam shaft (209), a limiting sleeve (211) is sleeved on the cam shaft (209), a plurality of groups of clamping teeth (210) are arranged in the clamping grooves, and a non-Newtonian fluid can be arranged on the clamping teeth (210);

the buffer assembly comprises a pressure lever (214), an upper shell (213) is arranged on the outer side of the pressure lever (214), a lower shell (215) is arranged inside the upper shell (213), an oil separation plate (216) is arranged inside the lower shell (215), a solution is arranged inside the lower shell (215), a through hole is formed in the bottom end of the oil separation plate (216), and the lower part of the lower shell (215) is fixed with a main tension belt (204);

the left end and the right end of the concave long plate (104) are respectively provided with a rotating shaft (105), the outer sides of two groups of rotating shafts (105) are respectively provided with a running belt (106), the inner side of the running belt (106) is provided with an elastic expansion plate (107), a magnetic force conversion component is arranged at the lower end of the elastic expansion plate (107), the magnetic force conversion component comprises a sensing shaft and a force transmission component, the sensing shaft is arranged at the lower end of the elastic expansion plate (107), the force transmission component is arranged below the sensing shaft and is in sliding connection with the sensing shaft, the conversion component is arranged below the force transmission component and is positioned on one side of the rotating shaft (105), the sensing shaft comprises a magnetic cylinder (108) and a magnetic rod (109), one end of the magnetic cylinder (108) is arranged at the lower end of the elastic expansion plate (107), the magnetic rod (109) is arranged inside the magnetic cylinder (108), and the magnetism of the magnetic rod (109) is the same as that of the magnetic cylinder (108);

the force transmission assembly comprises a first magnetic strip (110), the first magnetic strip (110) is arranged at the other end of the magnetic rod (109), the cathode of the first magnetic strip (110) faces upwards, connecting plates (111) are arranged on two sides of the first magnetic strip (110), the connecting plates (111) are arranged inside the rack (101), a second magnetic strip (112) is arranged at the top end of the connecting plates (111), the anode of the second magnetic strip (112) faces downwards, the magnetic cylinder (108) is arranged above the second magnetic strip (112), a tension rope (120) is correspondingly arranged at the lower end of the first magnetic strip (110), a third magnetic strip (113) is arranged at the other end of the tension rope (120), the anode of the third magnetic strip (113) faces upwards, a sliding rod (114) is arranged inside the center of the third magnetic strip (113), and a limiting plate (115) is arranged at the top end of the sliding rod (114);

the conversion assembly comprises a first spring (117), the upper end of the first spring (117) is fixed with the lower end face of the third magnetic strip (113), a trapezoidal magnetic sleeve (116) is arranged at the lower end of the first spring (117), and the cathode of the trapezoidal magnetic sleeve (116) faces upwards; the brake assembly comprises two groups of second connecting rods (119), the two groups of second connecting rods (119) are respectively positioned on two sides of the trapezoidal magnetic sleeve (116), the second connecting rods (119) are in sliding connection with the trapezoidal magnetic sleeve (116), a small ball (118) is arranged at one end, in contact with the trapezoidal magnetic sleeve (116), of each second connecting rod (119), and the small balls (118) are in sliding connection with the trapezoidal magnetic sleeve (116);

the electric reaction assembly comprises a magnetic block (300), one end of the magnetic block (300) is provided with a wire (301), the inner side of the wire (301) is provided with a soft iron strip (302), one side of the soft iron strip (302) is provided with an iron block (303), the right side center of the iron block (303) is provided with a switch (304), a second spring (307) is arranged above the right side of the iron block (303), a reaction tank (305) is arranged inside the rack (101), the reaction tank (305) is electrically connected with the switch (304), an elastic air bag (306) is sleeved outside the reaction tank (305), and sodium nitride and ferric oxide powder are arranged inside the reaction tank (305).