CN114504471A

CN114504471A - Machine head with brake function

Info

Publication number: CN114504471A
Application number: CN202210112464.6A
Authority: CN
Inventors: 吴强; 吕鹏
Original assignee: Changzhou Qianjing Rehabilitation Co ltd
Current assignee: Changzhou Qianjing Rehabilitation Co ltd
Priority date: 2022-01-29
Filing date: 2022-01-29
Publication date: 2022-05-17
Anticipated expiration: 2042-01-29
Also published as: CN114504471B

Abstract

The invention relates to the technical field of a head for shifting a head rail, in particular to a head with a braking function, which is applied to a head rail and comprises: the middle plate group, the mobile driving component, the sliding component, the brake component and the controller, wherein the sliding component is in transmission connection with the mobile driving component, and the mobile driving component drives the sliding component to travel on the top rail track; one part of the brake assembly is in telescopic movement on the middle plate assembly, the brake assembly can be in contact with the sky rail track to brake, the controller is electrically connected with the brake assembly to control the extension and retraction of the brake assembly, and the controller is electrically connected with the mobile driving assembly. According to the machine head with the braking function, when the shifting machine head needs to brake after reaching the designated position, the controller controls the brake assembly to extend out and abut against the top rail track to brake the machine head, so that the phenomenon that the shifting machine head at the rear part collides with the shifting machine head at the front part is avoided, and safety accidents are avoided.

Description

Machine head with brake function

Technical Field

The invention relates to the technical field of a head moving device, in particular to a head with a braking function.

Background

At present, sky rail rehabilitation training shift system mainly is to the patient that needs early to carry out the rehabilitation training and can not bear a burden on the earth, give to subtract heavy burden and the function of protection in training process, let the patient can begin the rehabilitation training as early as possible under the state of safety, can effectively avoid the motion system, the digestive system, the decline of health functions such as respiratory, prevent that the complication from taking place, also can promote the quick recovery of original disease, can effectually carry out the pertinence training to impaired function, improve recovered effect, sky rail rehabilitation training shift system mainly includes sky rail track and aversion aircraft nose, the aversion aircraft nose moves on the sky rail track, be provided with the suspender on the aversion aircraft nose, carry out the training-assistant to the patient through the suspender, can help the patient walk or, perhaps remove the patient.

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

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art.

Therefore, the invention provides a machine head with a braking function, which is applied to a sky rail track, the machine head is installed on the sky rail track, and the machine head travels on the sky rail track, and the machine head comprises:

a middle plate group;

the moving driving component is arranged on the middle plate group;

the sliding part is arranged on the middle plate group and is in transmission connection with the moving driving component, the moving driving component drives the sliding part to travel on the top rail track, and the sliding part is in contact with the top rail track;

the brake assembly is arranged on the middle plate group, one part of the brake assembly stretches and retracts on the middle plate group, the brake assembly can be abutted to the top rail track to brake, when the brake assembly extends out, the brake assembly is abutted to the top rail track to brake, and when the brake assembly retracts, the brake assembly is separated from the top rail track to release the brake;

the controller is electrically connected with the brake assembly to control the extension and retraction of the brake assembly, and the controller is electrically connected with the moving driving assembly to control the driving of the sliding part by the moving driving assembly.

According to the machine head with the braking function, when the shifting machine head needs to be braked after reaching the designated position, the controller is used for controlling the brake assembly to extend out, the brake assembly is abutted against the top rail track so as to rapidly increase the friction force between the shifting machine head and the top rail track, and therefore the shifting machine head is prevented from continuously sliding forwards under the action of inertia, the shifting machine head at the rear part is prevented from colliding with the shifting machine head at the front part, and safety accidents are avoided.

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 performs telescopic motion on the fixed piece;

the brake driving piece is in transmission connection with the movable piece and drives the movable piece to perform telescopic motion on the fixed piece;

the contact piece is connected with the moving piece, and when the moving piece extends out, the contact piece is contacted with the sky rail track 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 order to stretch out and retract the motion in the slip passageway.

Further, the moving part is a push rod, the push rod is connected with the fixing seat in a sliding mode, and the push rod is in transmission connection with the brake driving part to drive the push rod to extend out and retract through the brake driving part.

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

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

Furthermore, the brake base is connected with the moving part through a connecting piece, and the connecting piece is detachably and fixedly connected with the brake base and the moving part.

Furthermore, the connecting piece includes the round pin axle, the one end grafting of moving part is gone into in the brake seat, be provided with the pinhole on the side of brake seat, the pinhole runs through brake seat and moving part, the round pin axle is pegged graft into the pinhole in order to fix brake seat and moving part.

Furthermore, brake components are installed at the front end and the rear end of the middle plate group, and the two brake components extend out simultaneously and are abutted to the top rail track to enhance the braking effect.

The aircraft nose with the braking function has the beneficial effects that when the shifting aircraft nose needs to be braked after reaching a specified position, the controller is used for controlling the brake assembly to extend out, and the brake assembly is abutted against the top rail track so as to rapidly increase the friction force between the shifting aircraft nose and the top rail track, so that the shifting aircraft nose is prevented from continuously sliding forwards under the action of inertia, the collision between the shifting aircraft nose at the rear part and the shifting aircraft nose at the front part is avoided, and the occurrence of safety accidents is avoided.

According to the brake assembly, the controller controls the brake driving piece to drive the movable piece to extend and retract, when the movable piece extends out of the fixed piece, the contact piece and the movable piece move simultaneously, and the contact piece is in contact with the top rail track to brake the machine head.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic view of the head of the present invention mated with a head rail track.

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

Fig. 3 is a second perspective view of the handpiece with a braking function of the present invention.

Fig. 4 is an assembled 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 third perspective view of the handpiece with a braking function of the present invention.

Fig. 7 is a fourth perspective view of the head with brake function of the present invention.

FIG. 8 is a schematic diagram of the construction of the flexible system of the present invention.

FIG. 9 is a first schematic view of a portion of the structure in the flexible system of the present invention.

FIG. 10 is a second schematic view of a portion of the structure of the flexible system of the present invention.

Fig. 11 is a partial structural schematic diagram of the follow control device of the present invention.

In the figure: 1. a head rail track; 2. a middle 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 actuating 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 movement driving motor; 16. a first worm gear; 17. a first gear mechanism; 18. a lift drive assembly; 19. a harness assembly; 21. a detection component; 22. an elastic support member; 23. a hoisting disc; 24. a fixed pulley; 25. a movable pulley; 26. a sliding plate; 27. a guide member; 28. a lifting drive member; 29. lifting the transmission part; 30. a second worm gear mechanism; 31. a second gear mechanism; 32. a follower block; 33. a detector; 34. the holes are arranged; 35. a guide limiting block; 36. a sling; 37. a sensor sheet metal part.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 11, which are preferred embodiments of the present invention, a machine head with a braking function is applied to a head rail 1, the machine head is installed on the head rail 1, the machine head travels on the head rail 1, and includes a middle plate group 2, a moving driving assembly 3, a sliding member 4, a braking assembly 5 and a controller, the moving driving assembly 3 is installed on the middle plate group 2; the sliding part 4 is installed on the middle plate group 2, the sliding part 4 is in transmission connection with the movable driving component 3, the movable driving component 3 drives the sliding part 4 to walk on the sky rail track 1, and the sliding part 4 is in contact with the sky rail track 1.

The brake component 5 is arranged on the middle plate group 2, a part of the brake component 5 extends and retracts on the middle plate group 2, the brake component 5 can be abutted against the top rail track 1 to brake, the brake component 5 is abutted against the top rail track 1 to brake when extending out, and the brake component 5 is separated from the top 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 the controller is electrically connected with the moving driving assembly 3 to control the driving of the sliding member 4 by the moving driving assembly 3.

The brake assembly 5 includes: the brake device comprises a fixed piece 6, a movable piece 7, a brake driving piece 8 and a collision piece 9, wherein the fixed piece 6 is fixedly arranged on the middle plate group 2; the movable piece 7 is movably connected with the fixed piece 6, and the movable piece 7 performs telescopic motion 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 motion on the fixed piece 6; the contact piece 9 is connected with the moving piece 7, and when the moving piece 7 extends out, the contact piece 9 is contacted with the sky rail 1 to brake.

Specifically, mounting 6 is the fixing base, and the inside of fixing base is provided with the slip passage, and moving part 7 sets up inside the slip passage, and moving part 7 extends to the outside of fixing base, and moving part 7 slides in order to stretch out and retract the motion in the slip passage. The moving part 7 is a push rod, the push rod is connected with the fixed seat in a sliding mode, and the push rod is in transmission connection with the brake driving part 8 so as to drive the push rod to extend out and retract through the brake driving part 8.

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

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

The sliding piece 4 comprises four sliding wheels 14, the four sliding wheels 14 are all connected with the middle plate group 2 in a rotating mode, the two sliding wheels 14 at the front end of the middle plate group 2 are fixedly connected in a coaxial mode, the two sliding wheels 14 at the rear end of the middle plate group 2 are fixedly connected in a coaxial mode, 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 moving driving component 3 to drive the sliding wheels 14 to rotate through the moving driving component 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 sky rail track 1.

The machine head with the braking function has the beneficial effects that when the shifting machine head needs to brake after reaching a specified position, the brake component 5 is controlled by the controller, the brake component 5 is controlled to extend out, and the brake component 5 is abutted against the top rail track 1 so as to rapidly increase the friction force between the shifting machine head and the top rail track 1, so that the shifting machine head is prevented from continuously sliding forwards under the action of inertia, the shifting machine head at the rear part is prevented from colliding with the shifting machine head at the front part, and the occurrence of safety accidents is avoided.

According to the brake assembly 5, the controller controls the brake driving piece 8 to drive the movable piece 7 to extend and retract, when the movable piece 7 extends out of the fixed piece 6, the abutting piece 9 and the movable piece 7 move simultaneously, and the abutting piece 9 abuts against the top rail track 1 to brake a machine head.

The handpiece further includes a flexible system comprising: the lifting driving assembly 18, the sling assembly 19, the sliding assembly, the detection assembly 21 and the elastic supporting member 22 are arranged, and the lifting driving 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 the lifting driving piece 28, 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, one part of the sliding wheel 14 group is fixedly connected with the middle plate group 2, and the other part of the sliding wheel 14 group is movably connected with the middle plate group 2; the sliding assembly is arranged on the middle plate group 2, the sliding assembly is connected with the middle plate group 2 in a sliding mode, the sliding assembly is connected with the sliding wheel 14 group, and one part of the sliding wheel 14 group and the sliding assembly move simultaneously; the detection component 21 is connected with the sliding component, and the detection component 21 detects the position or displacement of the sliding component; one end of the resilient support 22 is connected to the intermediate plate package 2 and the other end of the resilient support 22 is connected to the sliding assembly, which is supported by the resilient support 22.

The harness assembly 19 includes: the hoisting device comprises a hoisting disc 23, a fixed pulley 24 and a movable pulley 25, wherein the hoisting disc 23 is in transmission connection with a lifting driving assembly 18, the lifting driving assembly 18 drives the hoisting disc 23 to rotate, and a hanging belt 36 is wound on the hoisting disc 23; the fixed pulley 24 is attached to the intermediate plate group 2, the fixed pulley 24 is rotatably connected to the intermediate plate group 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 strip 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 hanging strip 36 is wound on the movable pulley 25 above the driven pulley 25.

Specifically, the sliding member includes a sliding plate 26, the sliding plate 26 is slidably connected to the intermediate plate group 2, and the sliding plate 26 is fixedly connected to the movable pulley 25. The detecting component 21 is a displacement sensor, the displacement sensor is fixedly connected with the middle plate group 2, and the sliding plate 26 is connected with a sliding sheet of the displacement sensor to move simultaneously with the sliding sheet. The resilient support 22 is a spring, one end of which is in abutment with or connected to the slide plate 26 and the other end of which is in abutment with or connected to the intermediate plate package 2.

The intermediate plate group 2 is further provided with a guide 27, the guide 27 is arranged along the moving direction of the sliding assembly, and the guide 27 is in sliding fit with the sliding assembly to guide the movement of the sliding assembly. Specifically, the guide members 27 are guide posts that penetrate the sliding plate 26 and are slidably engaged with the sliding plate 26, and the guide posts are disposed in a 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 spring is compressed under the action of downward tension of the sliding plate 26 to provide a moving space for the sliding plate 26 and buffer and absorb shock for the sliding plate 26.

The sliding plate 26 is connected with a 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 includes a lifting driving member 28 and a lifting driving member 29, the lifting driving member 28 is connected to the lifting driving member 29 for driving the lifting driving member 29 to move, the lifting driving member 29 is connected to the winding disc 23 for driving the winding disc 23 to rotate, the lifting driving member 28 is electrically connected to the controller, and specifically, 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 coaxially and fixedly connected with the winding disc 23.

The flexible system can test the load weight of a heavy object loaded by the hanging strip 36, the flexible system 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 an initial position, and the compressed lowest position is a maximum load position. The displacement sensor can calibrate the weight before leaving the factory, each section of position of the displacement sensor can be recorded to obtain a corresponding weight value, the spring is not compressed in the initial state, the corresponding weight of the displacement sensor is 0, and the corresponding weight of the displacement sensor is the maximum when the spring is compressed to the lowest position. Thereby testing the weight of the load weight.

When the patient is loaded below the hanging strip 36, when the patient is loaded below the handpiece, and the patient normally moves, the height of the gravity center of the body can change up and down along with the movement, so that the hanging strip 36 can be driven to change up and down, and the sliding plate 26 and the displacement sensor can be driven to change up and down together; when the position of the displacement sensor changes, the system controls the action of the lifting driving piece 28, so that the original position of the displacement sensor is kept, and the original weight reduction weight is maintained.

The flexible system automatically adjusts the hanging strip 36 to enable the up-and-down position of the hanging strip 36 to adapt to the up-and-down change of the gravity center position of a patient in different training states, when the patient is trained, the machine head provides pulling force for the patient through the hanging strip 36, when the patient is in training, the hanging strip 36 is pulled to move downwards, the movable pulley 25 also moves downwards under the pulling force of the hanging strip 36, the sliding plate 26 connected with the movable pulley 25 also moves downwards at the same time, the sliding plate 26 drives the sliding sheet of the displacement sensor to move downwards, the displacement of the downward movement of the sliding plate 26 is detected through the displacement sensor, the displacement sensor transmits the detected displacement data to the controller, the controller drives the lifting driving piece 28 to rotate the winding disc 23 through the driving of the lifting driving piece 28 and the driving of the lifting driving piece 29, the winding disc 23 is unwound, the movable pulley 25 and the sliding plate 26 move upwards under the action of the spring to restore to the original position, at the same time, the sliding piece of the displacement sensor and the sliding plate 26 move back to the original position at the same time, corresponding to the original weight reduction on the displacement sensor.

When the gravity center of a patient moves upwards, the hanging strip 36 tends to move 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 the detected displacement data to the controller, the controller controls the lifting driving piece 28, the lifting driving piece 28 drives the winding disc 23 to wind, so that the hanging strip 36 is tightened, the sliding plate 26 and the movable pulley 25 return to the original position, and the sliding sheet of the displacement sensor also returns to the position corresponding to the original weight.

The handpiece also 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 movement of the following block 32 leftwards or rightwards, the detector 33 is electrically connected with the controller, the controller is electrically connected with the moving driving component 3 to control the moving driving component 3, and particularly, the detector 33 is electrically connected with the moving driving motor 15 to control the driving of the moving driving motor 15 to the first worm and gear 16 mechanism.

The following block 32 is provided with a hole 34, the hole 34 is a through hole, a hanging strip 36 penetrates through the hole 34, and the hanging strip 36 is in contact with the following block 32 in 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 the tension of the follower block 32 on the tension sensor during the 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, the tension sensor is driven to generate a compression and stretching state, when the system is in the compression state, the patient below the hanging strip 36 is determined to move forwards by the system, the tension sensor transmits detected information to the controller, and the controller controls the movable driving piece to drive the machine head to move forwards on the track. When the tension sensor is in an extension state, the system can determine that the patient below the sling 36 moves backwards, the tension sensor transmits the detected information to the controller, and the controller controls the movable driving piece to drive the machine head to move backwards on the track. Therefore, the controller controls the movable driving piece to drive the machine head to walk in the same direction as the walking direction of the patient, and the machine head can move along the same direction of the patient in the walking process of the patient.

The following control device of the invention is matched with the flexible system to realize the gait training process. The aircraft nose can follow the walking according to patient's direction of motion, can not only reduce patient's resistance of walking, effectively reduces patient's the degree of difficulty of walking, can also reduce medical personnel's work load.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the contents of the specification, and must be determined by the scope of the claims.

Claims

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

an intermediate plate group (2);

a mobile driving assembly (3), wherein the mobile driving assembly (3) is arranged on the middle plate group (2);

the sliding part (4) is installed on the middle plate group (2), the sliding part (4) is in transmission connection with the moving driving component (3), the moving driving component (3) drives the sliding part (4) to travel on the top rail track (1), and the sliding part (4) is in contact with the top rail track (1);

the brake assembly (5) is installed on the middle plate group (2), one part of the brake assembly (5) stretches out and draws back on the middle plate group (2), the brake assembly (5) can be abutted against the top rail track (1) to brake, the brake assembly (5) abuts against the top rail track (1) to brake when extending out, and the brake assembly (5) is separated from the top rail track (1) to release braking when retracting;

the controller is electrically connected with the brake assembly (5) to control the extension and retraction of the brake assembly (5), and the controller is electrically connected with the moving driving assembly (3) to control the driving of the sliding member (4) by the moving driving assembly (3).

2. The head with brake function as claimed in claim 1, wherein: the brake assembly (5) comprises:

the fixing piece (6) is fixedly arranged on the middle plate group (2);

the movable piece (7), the said movable piece (7) is connected with stationary part (6) movably, the said movable piece (7) carries on the telescopic motion on the stationary part (6);

the brake driving piece (8) is in transmission connection with the moving piece (7), and the brake driving piece (8) drives the moving piece (7) to perform telescopic motion on the fixing piece (6);

the contact piece (9), the contact piece (9) links to each other with moving part (7), when moving part (7) stretches out, the contact piece (9) and day rail track (1) are inconsistent and are braked.

3. The head with brake function as claimed in claim 2, wherein: fixing part (6) are the fixing base, the inside of fixing base is provided with the slip passage, moving part (7) set up inside the slip passage, moving part (7) extend to the outside of fixing base, moving part (7) slide in the slip passage in order to stretch out and retract the motion.

4. The head with brake function as claimed in claim 3, characterized in that: the moving part (7) is a push rod, the push rod is connected with the fixing seat in a sliding mode, and the push rod is in transmission connection with the brake driving part (8) to drive the push rod to extend out and retract through the brake driving part (8).

5. The head with brake function as claimed in claim 2, wherein: the contact part (9) comprises a brake block (10) and a brake base (11), the brake base (11) is fixedly connected with the moving part (7), and the brake block (10) is detachably and fixedly connected with the brake base (11).

6. The head with brake function as claimed in claim 5, wherein: the brake block (10) is made of rubber materials with high sliding friction factors, so that the friction force between the brake block (10) and the sky rail track (1) is improved, and the braking effect is enhanced.

7. The head with brake function as claimed in claim 6, wherein: the brake base (11) is connected with the moving part (7) through a connecting piece, and the connecting piece is detachably and fixedly connected with the brake base (11) and the moving part (7).

8. The head with brake function as claimed in claim 7, wherein: the connecting piece includes round pin axle (12), the one end plug of moving part (7) is gone into in brake seat (11), be provided with pinhole (13) on the side of brake seat (11), pinhole (13) run through brake seat (11) and moving part (7), round pin axle (12) are pegged graft and are gone into in pinhole (13) in order to fix brake seat (11) and moving part (7).

9. The head with brake function as claimed in claim 1, wherein: brake components (5) are installed at the front end and the rear end of the middle plate group (2), and the two brake components (5) extend out simultaneously and are abutted to the sky rail track (1) to enhance the brake effect.