CN114504471B - Machine head with braking function - Google Patents

Abstract

The invention relates to the technical field of head rail shifting heads, in particular to a head with a braking function, which is applied to a head rail and comprises the following components: the device comprises a middle plate group, a movable driving assembly, a sliding piece, a brake assembly and a controller, wherein the sliding piece is in transmission connection with the movable driving assembly, and the movable driving assembly drives the sliding piece to walk on a track of a track; part of the brake assembly stretches out and draws back the activity on the intermediate plate group, and the brake assembly can be inconsistent with the sky rail track and brake, and the controller is connected with the brake assembly electricity in order to control the extension and the withdrawal of brake assembly, and the controller is connected with the removal drive assembly electricity. When the shifting machine head with the braking function needs to be braked after reaching a designated position, the controller controls the braking component to extend out and to collide with the head rail track, so that the machine head is braked, the shifting machine head at the rear is prevented from colliding with the shifting machine head at the front, and safety accidents are avoided.

Description

Machine head with braking function

Technical Field

The invention relates to the technical field of head rail shifting heads, in particular to a head with a braking function.

Background

At present, the space rail rehabilitation training displacement system mainly aims at a patient who needs early rehabilitation training and cannot bear load to the ground, the weight reduction, load avoidance and protection functions are given in the training process, the patient can start rehabilitation training as early as possible in a safe state, the decline of body functions such as a movement system, a digestive system and a respiratory system can be effectively avoided, complications are prevented, the quick rehabilitation of the original diseases can be promoted, the targeted training can be effectively carried out on the damaged function, the rehabilitation effect is improved, the space rail rehabilitation training displacement system mainly comprises a space rail track and a displacement machine head, the displacement machine head moves on the space rail track, the hanging strip is arranged on the displacement machine head, the patient is assisted in training through the hanging strip, and the patient can be helped to walk or move.

The existing shifting machine head has inertia in the moving process of the shifting machine head on the head rail track, and after the driving is stopped, the shifting machine head can continuously slide forwards for a certain distance under the action of the inertia, so that the shifting machine head at the rear is easy to collide with a shifting mechanism at the front, and safety accidents are easy to cause.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art.

Therefore, the invention provides a nose with a braking function, which is applied to a headrail track, the nose is arranged on the headrail track, the nose walks on the headrail track, and the nose comprises:

An intermediate plate group;

A moving driving assembly mounted on the middle plate group;

The sliding piece is arranged on the middle plate group and is in transmission connection with the movable driving component, the movable driving assembly drives the sliding piece to walk on the overhead rail track, and the sliding piece is contacted with the overhead rail track;

The brake assembly is arranged on the middle plate group, part of the brake assembly stretches and contracts on the middle plate group, the brake assembly can be in contact with the rail track to brake, the brake assembly is in contact with the rail track to brake when extending out, and the brake assembly is separated from the rail track to release the brake when retracting;

And the controller is electrically connected with the brake assembly to control the extension and retraction of the brake assembly, and is electrically connected with the movable driving assembly to control the driving of the movable driving assembly to the sliding piece.

When the shifting machine head with the braking function needs to be braked after reaching a designated position, the controller is used for controlling the braking component to extend out, and the braking component is controlled to be in contact with the overhead rail track so as to rapidly increase the friction force between the shifting machine head and the overhead rail track, thereby avoiding the shifting machine head from continuously sliding forwards under the action of inertia, avoiding the collision of the shifting machine head at the rear and the shifting machine head at the front and avoiding the occurrence of safety accidents.

Further, the brake assembly includes:

The fixing piece is fixedly arranged on the middle plate group;

The movable piece is movably connected with the fixed piece, and the movable piece performs telescopic movement on the fixed piece;

The brake driving piece is in transmission connection with the movable piece and drives the movable piece to stretch and retract on the fixed piece;

The abutting piece is connected with the movable piece, and when the movable piece stretches out, the abutting piece abuts against the rail to brake.

Further, the mounting is the fixing base, the inside of fixing base is provided with the slip passageway, the moving part sets up inside the slip passageway, the moving part extends to the outside of fixing base, the moving part slides in the slip passageway in order to carry out extension and withdrawal motion.

Further, the movable part is a push rod, the push rod is in sliding connection with the fixed seat, and the push rod is in transmission connection with the brake driving part so as to drive the push rod to extend and retract through the brake driving part.

Further, the conflict piece includes brake block and brake block, brake block and movable part fixed connection, the fixed connection can be dismantled with the brake block to the brake block.

Further, the brake block is made of rubber materials with high sliding friction factors, so that friction force between the brake block and the top rail track is improved, and braking effect is enhanced.

Further, the brake seat is connected with the movable piece through a connecting piece, and the connecting piece is detachably and fixedly connected with the brake seat and the movable piece.

Further, the connecting piece comprises a pin shaft, one end of the movable piece is inserted into the brake seat, a pin hole is formed in the side face of the brake seat, the pin hole penetrates through the brake seat and the movable piece, and the pin shaft is inserted into the pin hole to fix the brake seat and the movable piece.

Further, brake components are mounted at the front end and the rear end of the middle plate group, and the two brake components extend out simultaneously and are abutted against the rail so as to strengthen the braking effect.

The machine head with the braking function has the beneficial effects that when the shifting machine head reaches a designated position and needs to be braked, the controller is used for controlling the braking component to extend out, and the braking component is in contact with the head rail track so as to rapidly increase the friction force between the shifting machine head and the head rail track, so that the shifting machine head is prevented from continuously sliding forwards under the action of inertia, the collision between the rear shifting machine head and the front shifting machine head is avoided, and the safety accident is avoided.

According to the brake assembly, the controller is used for controlling the brake driving piece to drive the movable piece to extend and retract, when the movable piece extends on the fixed piece, the abutting piece and the movable piece move simultaneously, and the abutting piece abuts against the head rail track to play a role in braking the machine head.

Drawings

The invention will be further described with reference to the drawings and examples.

FIG. 1 is a schematic view of the nose of the present invention mated with a headrail track.

Fig. 2 is a schematic perspective view of a nose with a braking function according to the present invention.

Fig. 3 is a schematic perspective view of a nose with a braking function according to the present invention.

Fig. 4 is an exploded view of the lift drive assembly of the present invention.

FIG. 5 is an exploded view of the brake assembly of the present invention.

Fig. 6 is a perspective view of a nose with a braking function according to the present invention.

Fig. 7 is a schematic perspective view of a nose with a braking function according to the present invention.

Fig. 8 is a schematic structural view of the flexible system of the present invention.

Fig. 9 is a schematic diagram of a part of the structure in the flexible system of the present invention.

Fig. 10 is a schematic diagram of a part of the structure in the flexible system of the present invention.

Fig. 11 is a partial schematic structural view of the following control device of the present invention.

In the figure: 1. a headrail track; 2. an intermediate plate group; 3. a movement drive assembly; 4. a sliding member; 5.a brake assembly; 6. a fixing member; 7. a movable member; 8. a brake driving member; 9. a contact member; 10. a brake block; 11. a brake seat; 12. a pin shaft; 13. a pin hole; 14. a sliding wheel; 15. a moving driving motor; 16. a first worm gear; 17. a first gear mechanism; 18. a lifting driving assembly; 19. a harness assembly; 21. a detection assembly; 22. an elastic support; 23. a winding disc; 24. a fixed pulley; 25. a movable pulley; 26. a sliding plate; 27. a guide member; 28. a lifting driving member; 29. lifting the transmission piece; 30. the second worm and gear mechanism; 31. a second gear mechanism; 32. a follower block; 33. a detector; 34. a hole; 35. a guide limiting block; 36. a hanging belt; 37. sensor sheet metal component.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more. In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 to 11, a nose with a braking function is applied to a headrail track 1, the nose is installed on the headrail track 1, the nose walks on the headrail track 1 and comprises a middle plate group 2, a movable driving assembly 3, a sliding piece 4, a braking assembly 5 and a controller, and the movable driving assembly 3 is installed on the middle plate group 2; the sliding piece 4 is arranged on the middle plate group 2, the sliding piece 4 is in transmission connection with the movable driving assembly 3, the movable driving assembly 3 drives the sliding piece 4 to walk on the headrail track 1, and the sliding piece 4 is in contact with the headrail track 1.

The brake assembly 5 is arranged on the middle plate group 2, part of the brake assembly 5 stretches out and draws back on the middle plate group 2, the brake assembly 5 can contact with the track rail 1 to brake, the brake assembly 5 contacts with the track rail 1 to brake when extending out, and the brake assembly 5 breaks away from the contact with the track rail 1 to release the brake when retracting; a controller is electrically connected with the brake assembly 5 to control the extension and retraction of the brake assembly 5, and is electrically connected with the movable driving assembly 3 to control the driving of the sliding member 4 by the movable driving assembly 3.

The brake assembly 5 includes: the brake device comprises a fixing piece 6, a movable piece 7, a brake driving piece 8 and a collision piece 9, wherein the fixing piece 6 is fixedly arranged on a middle plate group 2; the movable piece 7 is movably connected with the fixed piece 6, and the movable piece 7 performs telescopic movement on the fixed piece 6; the brake driving piece 8 is in transmission connection with the movable piece 7, and the brake driving piece 8 drives the movable piece 7 to perform telescopic movement on the fixed piece 6; the abutting piece 9 is connected with the movable piece 7, and when the movable piece 7 stretches out, the abutting piece 9 abuts against the top rail track 1 to brake.

Specifically, the fixing member 6 is a fixing seat, a sliding channel is provided in the fixing seat, the movable member 7 is provided in the sliding channel, the movable member 7 extends to the outside of the fixing seat, and the movable member 7 slides in the sliding channel to perform extension and retraction movements. The movable part 7 is a push rod which is in sliding connection with the fixed seat, and the push rod is in transmission connection with the brake driving part 8 so as to drive the push rod to extend and retract through the brake driving part 8.

Specifically, the abutting piece 9 comprises a brake block 10 and a brake seat 11, the brake seat 11 is fixedly connected with the movable piece 7, and the brake block 10 is detachably and fixedly connected with the brake seat 11. The brake block 10 is made of rubber materials with high sliding friction factors, so that the friction between the brake block 10 and the overhead rail track 1 is improved, and the braking effect is enhanced.

The brake seat 11 is connected with the movable piece 7 through a connecting piece, and the connecting piece is detachably and fixedly connected with the brake seat 11 and the movable piece 7. Specifically, the connecting piece includes round pin axle 12, and the one end of moving part 7 is pegged graft in brake block 11, is provided with pinhole 13 on the side of brake block 11, and pinhole 13 runs through brake block 11 and moving part 7, and round pin axle 12 peg graft in pinhole 13 in order to fix brake block 11 and moving part 7.

The sliding piece 4 comprises four sliding wheels 14, the four sliding wheels 14 are all in rotary connection with the middle plate group 2, the two sliding wheels 14 at the front end of the middle plate group 2 are in coaxial fixed connection, the two sliding wheels 14 at the rear end of the middle plate group 2 are in coaxial fixed connection, and the two sliding wheels 14 at the front end or the rear end of the middle plate group 2 are in transmission connection with the movable driving assembly 3 so as to drive the sliding wheels 14 to rotate through the movable driving assembly 3.

The movable driving assembly 3 comprises a movable driving motor 15, a first worm gear 16 and a first gear mechanism 17, the first worm gear 16 is in transmission connection with the movable driving motor 15, the first gear mechanism 17 is in transmission connection with the first worm gear 16, and the first gear mechanism 17 is in transmission connection with two sliding wheels 14 at the front end or the rear end of the middle plate group 2, so that the sliding wheels 14 are driven to rotate through the movable driving assembly 3, and the machine head is driven to walk on the head rail track 1.

The machine head with the braking function has the beneficial effects that when the shifting machine head reaches a designated position and needs to be braked, the controller is used for controlling the brake assembly 5 to extend, and the brake assembly 5 is controlled to be in contact with the head rail track 1, so that the friction force between the shifting machine head and the head rail track 1 is rapidly increased, the shifting machine head is prevented from continuously sliding forwards under the action of inertia, the collision of the shifting machine head at the rear and the shifting machine head at the front is avoided, and the occurrence of safety accidents is avoided.

According to the brake assembly 5 disclosed by the invention, the movable part 7 is driven to extend and retract by the brake driving part 8 controlled by the controller, when the movable part 7 extends on the fixed part 6, the abutting part 9 and the movable part 7 move simultaneously, the abutting part 9 abuts against the head rail track 1, the brake assembly 5 has a braking effect on a machine head, and the brake assembly 5 is simple in structure, easy to operate, high in stability, good in service performance and low in cost.

The handpiece further includes a flexible system, the flexible system including: the lifting drive assembly 18, the sling assembly 19, the sliding assembly, the detection assembly 21 and the elastic support 22, wherein the lifting drive assembly 18 is arranged on the middle plate group 2; the sling assembly 19 is provided with a sling 36, the sling assembly 19 is connected with the lifting driving piece 28, the lifting driving piece 28 drives the sling 36 to move so as to adjust the height of the lower end of the sling 36, one part of the sliding wheel 14 set is fixedly connected with the middle plate set 2, and the other part of the sliding wheel 14 set is movably connected with the middle plate set 2; the sliding component is arranged on the middle plate group 2, the sliding component is in sliding connection with the middle plate group 2, the sliding component is connected with the sliding wheel 14 group, and a part of the sliding wheel 14 group and the sliding component move simultaneously; the detection assembly 21 is connected with the sliding assembly, and the detection assembly 21 detects the position or displacement of the sliding assembly; one end of the elastic support member 22 is connected to the intermediate plate group 2, the other end of the elastic support member 22 is connected to the sliding assembly, and the elastic support member 22 supports the sliding assembly.

The strap assembly 19 includes: the hoisting disc 23, the fixed pulley 24 and the movable pulley 25, the hoisting disc 23 is in transmission connection with the lifting driving assembly 18, the lifting driving assembly 18 drives the hoisting disc 23 to rotate, and the hanging strip 36 is wound on the hoisting disc 23; the fixed pulley 24 is mounted on the intermediate plate set 2, the fixed pulley 24 is rotatably connected with the intermediate plate set 2, and the hanging belt 36 is wound around the fixed pulley 24 from below the fixed pulley 24. The movable pulley 25 is connected with the sliding assembly to move along with the sliding assembly, the hanging belt 36 passes through the upper side of the movable pulley 25 after passing through the lower side of the fixed pulley 24, and the hanging belt 36 is wound on the movable pulley 25 above the movable pulley 25.

Specifically, the sliding assembly includes a sliding plate 26, the sliding plate 26 is slidably connected to the middle plate set 2, and the sliding plate 26 is fixedly connected to the movable pulley 25. The detection component 21 is a displacement sensor, the displacement sensor is fixedly connected with the middle plate set 2, and the sliding plate 26 is connected with a sliding sheet of the displacement sensor and moves simultaneously with the sliding sheet. The elastic support 22 is a spring, one end of which is in contact with or connected to the sliding plate 26, and the other end of which is in contact with or connected to the intermediate plate group 2.

The middle plate set 2 is also provided with a guide member 27, the guide member 27 is arranged along the movement direction of the sliding assembly, and the guide member 27 is in sliding fit with the sliding assembly to guide the movement of the sliding assembly. Specifically, the guide member 27 is a guide column that penetrates the slide plate 26 and is slidably engaged with the slide plate 26, and the guide column is disposed along the vertical direction. The spring is sleeved on the guide post, the spring is positioned below the sliding plate 26, the spring supports the sliding plate 26, and the sliding plate 26 is compressed under the downward tension to provide a moving space for the sliding plate 26 and buffer and shock-absorb the sliding plate 26.

The sliding plate 26 is connected with the sliding sheet of the displacement sensor through a sensor sheet metal part, one end of the sensor sheet metal part is detachably connected with the sliding plate 26, and the other end of the sensor sheet metal part is detachably connected with the sliding sheet of the displacement sensor.

The lifting driving assembly 18 comprises a lifting driving member 28 and a lifting driving member 29, the lifting driving member 28 is in transmission connection with the lifting driving member 29 to drive the lifting driving member 29 to move, the lifting driving member 29 is connected with the winding disc 23 to drive the winding disc 23 to rotate, the lifting driving member 28 is electrically connected with the controller, and the lifting driving member 28 is a motor. The lifting transmission member 29 comprises a second worm gear mechanism 30 and a second gear mechanism 31, the second worm gear mechanism 30 is in transmission connection with the output shaft of the lifting driving member 28, the second gear mechanism 31 is in transmission connection with the second worm gear mechanism 30, and the output shaft of the second gear mechanism 31 is fixedly connected with the winding disc 23 coaxially.

The flexible system can carry out load weight test on the heavy object loaded by the hanging strip 36, and drives the sliding plate 26 to move up and down through the heavy object loaded by the hanging strip 36, meanwhile, the sliding plate 26 is fixedly connected with the displacement sensor, and the sliding plate 26 drives the displacement sensor to move up and down while moving. The spring is sleeved on the guide post, the free position of the spring is the initial position, and the lowest compression position is the maximum load position. The displacement sensor can calibrate weight before leaving the factory, and the corresponding weight numerical value of every section position of displacement sensor can be recorded, and in initial state, the spring does not compress, and displacement sensor corresponds weight and is 0, and when the spring compressed to minimum position, displacement sensor corresponds weight and is the biggest. Thereby testing the weight of the load weight.

When the patient is loaded below the hanging strip 36, and when the patient is loaded below the machine head, the height of the gravity center of the body can be changed along with the movement up and down when the patient is moving normally, so that the hanging strip 36 can be driven to be changed up and down, and the sliding plate 26 and the displacement sensor can be driven to be changed up and down together; when the position of the displacement sensor changes, the system controls the lifting driving part 28 to act, so that the original position of the displacement sensor is maintained, and the original weight is maintained.

The flexible system automatically adjusts the hanging strip 36 so that the up-down position of the hanging strip 36 is suitable for the up-down change of the gravity center position of a patient in different training states, the machine head provides tension for the patient through the hanging strip 36 when the patient exercises, the movable pulley 25 moves downwards under the action of the tension of the hanging strip 36 when the patient is subjected to the downward movement of the tension in the training process, the sliding plate 26 connected with the movable pulley 25 moves downwards simultaneously, the sliding plate 26 drives the sliding sheet of the displacement sensor to move downwards, the displacement sensor detects the downward movement displacement of the sliding plate 26, the displacement sensor transmits the detected displacement data to the controller, the controller drives the lifting driving piece 28, the lifting driving piece 29 drives the lifting driving piece 28 to rotate, the lifting disc 23 rolls, the movable pulley 25 and the sliding plate 26 move upwards under the action of the spring to restore the original position, and simultaneously the sliding sheet of the displacement sensor and the sliding plate 26 move back to the original position simultaneously, and the original weight loss on the corresponding displacement sensor is realized.

When the center of gravity of the patient moves upwards, the hanging strip 36 has a trend of moving upwards, the sliding plate 26 and the movable pulley 25 move upwards under the action of the spring, the sliding sheet of the displacement sensor and the sliding plate 26 move upwards simultaneously, the displacement sensor transmits data of the detected displacement to the controller, the controller controls the lifting driving member 28, the lifting driving member 28 drives the winding disc 23 to wind up, so that the hanging strip 36 is tightened, the sliding plate 26 and the movable pulley 25 return to the original positions, and the sliding sheet of the displacement sensor returns to the positions corresponding to the original weights.

The machine head further comprises a following control device, the following control device comprises a following block 32 and a detector 33, the following block 32 is arranged on the middle plate group 2, the following block 32 is movably connected with the middle plate group 2, the following block 32 is in sliding fit with a hanging strip 36, and the hanging strip 36 drives the following block 32 to move leftwards or rightwards when moving leftwards or rightwards; the detector 33 is connected with the following block 32 to sense the leftward or rightward movement of the following block 32, the detector 33 is electrically connected with the controller, the controller is electrically connected with the moving driving assembly 3 to control the moving driving assembly 3, and in particular, the detector 33 is electrically connected with the moving driving motor 15 to control the driving of the first worm gear 16 mechanism by the moving driving motor 15.

The follower block 32 is provided with a hole 34, the hole 34 is a through hole, the hanging strip 36 passes through the hole 34, and the hanging strip 36 is in contact with the follower block 32 at the hole 34. Two guide limiting blocks 35 are arranged on the middle plate group 2, the two guide limiting blocks 35 are respectively arranged on the front side and the rear side of the following block 32, and the following block 32 is in sliding fit with the two guide limiting blocks 35.

Specifically, the detector 33 is a tension sensor for detecting tension of the follower block 32 to the tension sensor during leftward or rightward movement.

According to the following control device, when a patient walks and trains, the hanging strip 36 swings leftwards or rightwards in the belt hole 34, so that the following block 32 is driven to move leftwards or rightwards, and further, the tension sensor is driven to generate compression and stretching states, in the compression state, the system can determine that the patient below the hanging strip 36 is doing forward motion, the tension sensor transmits detected information to the controller, and the controller controls the movable driving piece to drive the machine head to move forward on the track. When the tension sensor is in an extended state, the system can determine that the patient below the sling 36 is in a retreating motion, the tension sensor transmits detected information to the controller, and the controller controls the movable driving piece to drive the machine head to move in a retreating motion on the track. Therefore, the direction of the head driven by the movable driving piece to walk is the same as the walking direction of the patient, and the head can move along with the patient in the same direction in the walking process of the patient.

The following control device is matched with the flexible system to realize the gait training process. The machine head can walk along with the patient according to the movement direction of the patient, so that the walking resistance of the patient can be reduced, the walking difficulty of the patient can be effectively reduced, and the workload of medical staff can be reduced.

With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined as the scope of the claims.

Claims (9)

1. The utility model provides a aircraft nose with brake function, uses on sky rail track (1), and the aircraft nose is installed on sky rail track (1), and the aircraft nose walks on sky rail track (1), its characterized in that: comprising the following steps:

An intermediate plate group (2);

a movement driving assembly (3), the movement driving assembly (3) being mounted on the intermediate plate set (2);

The sliding piece (4) is arranged on the middle plate group (2), the sliding piece (4) is in transmission connection with the movable driving assembly (3), the movable driving assembly (3) drives the sliding piece (4) to walk on the track (1), and the sliding piece (4) is in contact with the track (1);

The brake assembly (5) is arranged on the middle plate group (2), part of the brake assembly (5) stretches out and draws back on the middle plate group (2), the brake assembly (5) can contact with the head rail track (1) to brake, the brake assembly (5) contacts with the head rail track (1) to brake when extending out, and the brake assembly (5) breaks away from the head rail track (1) to release the brake when retracting;

the controller is electrically connected with the brake assembly (5) to control the extension and retraction of the brake assembly (5), and is electrically connected with the mobile driving assembly (3) to control the driving of the sliding piece (4) by the mobile driving assembly (3);

The handpiece further includes a flexible system, the flexible system including: the lifting drive assembly (18), the sling assembly (19), the sliding assembly, the detection assembly (21) and the elastic support piece (22), wherein the lifting drive assembly (18) is arranged on the middle plate group (2); the hanging strip assembly (19) is provided with a hanging strip (36), the hanging strip assembly (19) is connected with a lifting driving piece (28), and the lifting driving piece (28) drives the hanging strip (36) to move so as to adjust the height of the lower end of the hanging strip (36); the sliding component is arranged on the middle plate group (2), the sliding component is in sliding connection with the middle plate group (2), the detecting component (21) is connected with the sliding component, and the detecting component (21) detects the position or displacement of the sliding component; one end of the elastic supporting piece (22) is connected with the middle plate group (2), the other end of the elastic supporting piece (22) is connected with the sliding component, and the elastic supporting piece (22) supports the sliding component;

When the patient is loaded below the hanging strip (36), and when the patient is loaded below the machine head, the height of the gravity center of the body can be changed along with the movement up and down when the patient is in normal movement, so that the hanging strip (36) can be driven to be changed up and down, and meanwhile, the sliding plate (26) and the displacement sensor can be driven to be changed up and down together; when the position of the displacement sensor changes, the system can control the lifting driving piece (28) to act along with the displacement sensor, so that the original position of the displacement sensor is maintained, and the original weight reduction weight is maintained;

The harness assembly (19) comprises:

The hoisting disc (23) is in transmission connection with the lifting driving assembly (18), the lifting driving assembly (18) drives the hoisting disc (23) to rotate, and the hanging strip (36) is wound on the hoisting disc (23);

The fixed pulley (24) is arranged on the middle plate group (2), the fixed pulley (24) is rotationally connected with the middle plate group (2), and the hanging belt (36) is wound on the fixed pulley (24) from the lower part of the fixed pulley (24);

The movable pulley (25) is connected with the sliding assembly to move along with the sliding assembly, the hanging belt (36) passes through the lower part of the fixed pulley (24) and then passes through the upper part of the driven pulley (25), and the upper part of the hanging belt (36) is wound on the movable pulley (25);

the sliding assembly comprises a sliding plate (26), the sliding plate (26) is in sliding connection with the middle plate group (2), and the sliding plate (26) is fixedly connected with the movable pulley (25);

the detection assembly (21) is a displacement sensor, the displacement sensor is fixedly connected with the middle plate set (2), and the sliding plate (26) is connected with a sliding sheet of the displacement sensor and moves simultaneously with the sliding sheet;

The lifting driving assembly (18) comprises a lifting driving piece (28) and a lifting transmission piece (29), the lifting driving piece (28) is in transmission connection with the lifting transmission piece (29) to drive the lifting transmission piece (29) to move, the lifting transmission piece (29) is connected with the winding disc (23) to drive the winding disc (23) to rotate, and the lifting driving piece (28) is electrically connected with the controller;

The flexible system automatically adjusts the hanging strip (36) so that the upper and lower positions of the hanging strip (36) adapt to the up and down changes of the gravity center position of a patient in different training states, the patient provides tension for the patient through the hanging strip (36) when the patient trains, when the hanging strip (36) moves downwards under the action of the tension, the movable pulley (25) moves downwards under the action of the tension of the hanging strip (36), the sliding plate (26) connected with the movable pulley (25) moves downwards simultaneously, the sliding plate (26) drives the sliding sheet of the displacement sensor to move downwards, the displacement sensor detects the displacement amount of the downward movement of the sliding plate (26) and transmits the detected displacement amount data to the controller, the controller drives the lifting driving piece (28) and drives the lifting driving piece (29) to rotate through the lifting driving piece (28), the winding disc (23) is unreeled, the movable pulley (25) and the sliding plate (26) move upwards under the action of the spring to the original position, and simultaneously the sliding sheet of the displacement sensor and the sliding plate (26) move downwards to the original position correspondingly to reduce the weight;

when the gravity center of a patient moves upwards, the hanging belt (36) has a trend of moving upwards, the sliding plate (26) and the movable pulley (25) move upwards under the action of the spring, the sliding sheet of the displacement sensor and the sliding plate (26) move upwards at the same time, the displacement sensor transmits data of the detected displacement to the controller, the controller controls the lifting driving piece (28), the lifting driving piece (28) drives the winding disc (23) to wind up, so that the hanging belt (36) is tightened, the sliding plate (26) and the movable pulley (25) return to the original positions, and the sliding sheet of the displacement sensor also returns to the positions corresponding to the original weights;

The shifting machine head further comprises a following control device, the following control device comprises a following block (32) and a detector (33), the following block (32) is arranged on the middle plate group (2), the following block (32) is movably connected with the middle plate group (2), the following block (32) is in sliding fit with a hanging strip (36), and the hanging strip (36) can drive the following block (32) to move leftwards or rightwards when moving leftwards or rightwards; the detector (33) is connected with the following block (32) to detect and sense the leftward or rightward movement of the following block (32), the detector (33) is electrically connected with the controller, the controller is electrically connected with the moving driving assembly (3) to control the moving driving assembly (3), the following block (32) is provided with a belt hole (34), the belt hole (34) is a through hole, the hanging belt (36) passes through the belt hole (34), and the hanging belt (36) is contacted with the following block (32) in the belt hole (34); two guide limiting blocks (35) are arranged on the middle plate group (2), the two guide limiting blocks (35) are respectively arranged on the front side and the rear side of the following block (32), and the following block (32) is in sliding fit with the two guide limiting blocks (35).

2. The nose with braking function according to claim 1, characterized in that: the brake assembly (5) comprises:

The fixing piece (6), the said fixing piece (6) is fixedly mounted on intermediate plate group (2);

the movable piece (7), the movable piece (7) is movably connected with the fixed piece (6), and the movable piece (7) stretches and contracts on the fixed piece (6);

The brake driving piece (8), the said brake driving piece (8) is connected with the movable piece (7) transmission, the brake driving piece (8) drives the movable piece (7) to stretch out and draw back on the fixed piece (6);

the device comprises a supporting piece (9), wherein the supporting piece (9) is connected with a movable piece (7), and when the movable piece (7) stretches out, the supporting piece (9) is abutted against the rail track (1) to brake.

3. The nose with braking function according to claim 2, characterized in that: the fixing piece (6) is a fixing seat, a sliding channel is arranged in the fixing seat, the movable piece (7) is arranged in the sliding channel, the movable piece (7) extends to the outside of the fixing seat, and the movable piece (7) slides in the sliding channel to extend and retract.

4. A nose with braking function as claimed in claim 3, wherein: the movable part (7) is a push rod, the push rod is in sliding connection with the fixed seat, and the push rod is in transmission connection with the brake driving part (8) so as to drive the push rod to extend and retract through the brake driving part (8).

5. The nose with braking function according to claim 2, characterized in that: the abutting piece (9) comprises a brake block (10) and a brake seat (11), the brake seat (11) is fixedly connected with the movable piece (7), and the brake block (10) is detachably and fixedly connected with the brake seat (11).

6. The nose with braking function according to claim 5, wherein: the brake block (10) is made of rubber materials with high sliding friction factors, so that friction between the brake block (10) and the overhead rail track (1) is improved, and a brake effect is enhanced.

7. The nose with braking function according to claim 6, wherein: the brake seat (11) is connected with the movable piece (7) through a connecting piece, and the connecting piece is detachably and fixedly connected with the brake seat (11) and the movable piece (7).

8. The nose with braking function according to claim 7, wherein: the connecting piece comprises a pin shaft (12), one end of the movable piece (7) is inserted into the brake seat (11), a pin hole (13) is formed in the side face of the brake seat (11), the pin hole (13) penetrates through the brake seat (11) and the movable piece (7), and the pin shaft (12) is inserted into the pin hole (13) to fix the brake seat (11) and the movable piece (7).

9. The nose with braking function according to claim 1, characterized in that: the front end and the rear end of the middle plate group (2) are respectively provided with a brake assembly (5), and the two brake assemblies (5) extend out simultaneously and are abutted with the track (1) to strengthen the braking effect.