CN112337057A

CN112337057A - Upper limb strength rehabilitation training equipment capable of automatically changing force

Info

Publication number: CN112337057A
Application number: CN202011331610.1A
Authority: CN
Inventors: 杨燕力
Original assignee: Xiangshan Changfeng Medical Equipment Co ltd
Current assignee: Xiangshan Changfeng Medical Equipment Co ltd
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-02-09

Abstract

The invention discloses upper limb strength rehabilitation training equipment capable of automatically changing force, which comprises a main body, wherein a sliding cavity with the upper side communicated with the outside is arranged in the main body, standing plates are fixedly installed on the front end wall and the rear end wall of the center of the sliding cavity, width sliding blocks are symmetrically arranged on the left side and the right side of each standing plate in a sliding mode, a width adjusting component is arranged on the lower side of each width sliding block, a training cavity with the upper side communicated with the outside is arranged in each width sliding block, a rehabilitation training component is arranged in each training cavity, according to the width adjusting position suitable for a patient, the patient can lift up the training blocks to the uppermost side and drive the lower side replacement lifting blocks to slide upwards, when putting down the training blocks, the patient pushes the replacement lifting blocks to slide downwards, a discharge sliding block pushes heavy blocks in the training blocks into a recovery cavity.

Description

Upper limb strength rehabilitation training equipment capable of automatically changing force

Technical Field

The invention relates to the technical field of medical rehabilitation equipment, in particular to upper limb strength rehabilitation training equipment capable of automatically changing force.

Background

Rehabilitation training refers to physical activities beneficial to recovery or improvement of functions after injury, and proper and scientific physical exercises have positive effects on rapid healing of injury and promotion of functional recovery. During upper limbs strength rehabilitation training, the rehabilitation training person needs to adjust the burden according to the actual conditions of the patient, and each patient needs to be equipped with one rehabilitation training person, so that the condition that the hands of the medical personnel are insufficient can occur.

Disclosure of Invention

Aiming at the defects of the technology, the invention provides the upper limb strength rehabilitation training equipment capable of automatically changing the strength, which can overcome the defects.

The invention relates to upper limb strength rehabilitation training equipment capable of automatically changing force, which comprises a main body, wherein a sliding cavity with the upper side communicated with the outside is arranged in the main body, a standing plate is fixedly arranged on the front end wall and the rear end wall of the center of the sliding cavity, width sliding blocks are symmetrically arranged on the left side and the right side of the standing plate in a sliding manner, a width adjusting assembly is arranged on the lower side of each width sliding block, a training cavity with the upper side communicated with the outside is arranged in each width sliding block, a rehabilitation training assembly is arranged in each training cavity, a replacing lifting groove is communicated with the lower side of each training cavity, a discharging assembly is arranged in each replacing lifting groove, a rotating cavity is communicated with the outer side of each training cavity, a feeding assembly is arranged in each rotating cavity, each feeding assembly comprises a feeding rotating shaft rotatably arranged on the rear end wall of each rotating cavity, rotate chamber rear end wall rotate install with the eccentric first hollow axis of rotation of feeding axis of rotation, first hollow axis of rotation front side is isometric to articulate there are six second connecting rods, the second connecting rod other end with the rotor plate is articulated, the rotor plate is the horizontality, it is equipped with the ejector pad sliding tray to rotate chamber outside intercommunication, ejector pad sliding tray downside intercommunication is equipped with the cam and rotates the chamber, the cam rotates chamber outside end wall and rotates and install the cam axis of rotation, fixed mounting has the cam that contains the spacing groove in the cam axis of rotation, sliding in the ejector pad sliding tray be equipped with cam spacing groove sliding fit's L type ejector pad, the cam rotates chamber rear end wall and rotates and installs the driven shaft, the cam axis of rotation the driven shaft is through a set of bevel gear transmission.

Preferably, the rehabilitation training subassembly includes the slidable mounting and is in the training piece that the outside in training intracavity contains the heavy object groove, heavy object inslot side contain with the communicating through-hole in training chamber, fixed mounting has the pull rod that upwards extends to outside and upside fixed mounting has the pull ring in the training piece, the training piece outside is equipped with the rack, training chamber outside intercommunication is equipped with and extends to rotate the first transmission chamber of chamber rear side, first transmission chamber rear end wall rotates and installs first transmission shaft, fixed mounting on the first transmission shaft can with the first one-way wheel of training piece outside rack toothing, rotate the intracavity be equipped with feeding axis of rotation fixed mounting's second one-way wheel, the second one-way wheel with fix the belt pulley of first one-way wheel rear side passes through the belt and is connected.

Preferably, the discharging assembly comprises a lifting block which is slidably mounted in the replacement lifting groove and has racks on the inner side and the outer side, the inner side of the replacement lifting groove is communicated with a second transmission cavity communicated with the cam rotation cavity, the outer side of the replacement lifting groove is communicated with a third transmission cavity communicated with the first transmission cavity, the rear end wall of the third transmission cavity is rotatably mounted with a second transmission shaft, the second transmission shaft is fixedly mounted with a second transmission gear meshed with the racks on the outer side of the lifting block, the second transmission shaft and the first transmission shaft are transmitted through a group of belt pulleys, the rear end wall of the second transmission cavity is rotatably mounted with an one-way transmission shaft, the one-way transmission shaft is fixedly mounted with a third transmission gear meshed with the racks on the inner side of the lifting block and a third one-way wheel positioned on the front side of the third transmission gear, the one-way transmission shaft and the driven shaft are driven through a group of belt pulleys.

Preferably, ejection of compact subassembly still include with the transmission sliding tray of second transmission chamber outside intercommunication, slide in the transmission sliding tray be equipped with can with the transmission sliding block of third one-way wheel meshing, transmission sliding tray upside intercommunication be equipped with the ejection of compact sliding tray of training chamber intercommunication, slide in the ejection of compact sliding tray be equipped with the transmission sliding block pass through inclined plane sliding fit and with ejection of compact sliding tray pass through ejection of compact spring coupling and can slide extremely the ejection of compact ejector pad in training chamber, ejection of compact sliding tray outside end wall fixed mounting has the electro-magnet, ejection of compact ejector pad outside fixed mounting have can with electro-magnet complex iron plate, training chamber outside intercommunication is equipped with and is located the accumulator of rotation chamber downside.

Preferably, the width adjusting assembly comprises a width adjusting cavity communicated with the lower side of the sliding cavity, a motor is fixedly mounted on the lower end wall of the width adjusting cavity, a driving shaft is connected to the upper side of the motor in a power mode, a first connecting rod is fixedly mounted on the upper side of the driving shaft, second connecting rods are hinged to two ends of the first connecting rod respectively, the other ends of the second connecting rods are hinged to the lower sides of the width sliding blocks correspondingly, adjusting sliding grooves are symmetrically formed in the left side and the right side of the standing plate, and adjusting sliding plates connected with the adjusting sliding grooves through adjusting springs are arranged in the adjusting sliding grooves in a sliding mode.

Preferably, the first one-way wheel, the second one-way wheel and the third one-way wheel include an inner wheel and an outer wheel rotatably mounted on the front side end wall of the first transmission cavity and the front side end wall of the second transmission cavity through a second hollow rotating shaft, the inner wheel is a ratchet wheel, two pawls spring-connected with the outer wheel through clamping jaws are hinged on the inner side of the outer wheel, the outer wheel of the first one-way wheel and the outer wheel of the third one-way wheel are gears, and the outer wheel of the second one-way wheel is a belt pulley.

The beneficial effects are that: the device simple structure, high durability and convenient operation, the device is at the during operation, width adjusting position according to patient's adaptation, place heavy object piece according to weight order on the feeding rolling disc, can upwards carry up training piece and drive the downside when the top and change the elevator and upwards slide when the patient puts down the training piece, the patient promotes when putting down the training piece and changes the elevator and downwards slide, ejection of compact sliding block pushes away the heavy object piece in the training piece to retrieving the intracavity, the feeding sliding block pushes away new heavy object piece in the training piece, the patient upwards carries up the training piece once more and carries out the rehabilitation training, do not need rehabilitation training person to adjust heavy burden, reduce the demand to medical personnel's number.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

3 FIG. 32 3 is 3 a 3 schematic 3 diagram 3 of 3 the 3 structure 3 A 3- 3 A 3 of 3 FIG. 31 3 according 3 to 3 an 3 embodiment 3 of 3 the 3 present 3 invention 3; 3

FIG. 3 is a schematic diagram of the structure B-B in FIG. 1 according to an embodiment of the present invention;

FIG. 4 is an enlarged schematic view of the structure at C in FIG. 1 according to an embodiment of the present invention;

FIG. 5 is an enlarged schematic view of the structure at D in FIG. 1 according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of the third unidirectional wheel 44 and the weight block groove 53 in fig. 1 according to the embodiment of the present invention.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

The invention will now be described in detail with reference to fig. 1-6, for convenience of description, the following orientations will now be defined: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The upper limb strength rehabilitation training device capable of automatically changing force comprises a main body 10, wherein a sliding cavity 39 with the upper side communicated with the outside is arranged in the main body 10, a standing plate 29 is fixedly installed on the front end wall and the rear end wall of the center of the sliding cavity 39, width sliding blocks 38 are symmetrically arranged on the left side and the right side of the standing plate 29 in a sliding mode, a width adjusting assembly capable of adjusting the width according to the adaptation of a patient is arranged on the lower side of each width sliding block 38, a training cavity 32 with the upper side communicated with the outside is arranged in each width sliding block 38, a rehabilitation training assembly is arranged in each training cavity 32, a replacing lifting groove 45 is communicated with the lower side of each training cavity 32, a discharging assembly for pushing out light weight blocks is arranged in each replacing lifting groove 45, a rotating cavity 25 is communicated with the outer side of each training cavity 32, a feeding assembly for pushing in new weight blocks is arranged in each rotating cavity 25, each feeding assembly comprises, the feeding rotating shaft 26 is fixedly provided with six first connecting rods 50 at equal angles, the other end of each first connecting rod 50 is hinged with a rotating plate 24, the rear end wall of the rotating cavity 25 is rotatably provided with a first hollow rotating shaft 52 eccentric to the feeding rotating shaft 26, the front side of the first hollow rotating shaft 52 is hinged with six second connecting rods 51 at equal angles, the other end of each second connecting rod 51 is hinged with the rotating plate 24, the rotating plate 24 is in a horizontal state, the outer side of the rotating cavity 25 is communicated with a push block sliding groove 22, the lower side of the push block sliding groove 22 is communicated with a cam rotating cavity 19, the outer end wall of the cam rotating cavity 19 is rotatably provided with a cam rotating shaft 21, the cam rotating shaft 21 is fixedly provided with a cam 20 with a limiting groove, an L-shaped push block 23 in sliding fit with the cam 20 limiting groove is slidably arranged in the push block sliding groove 22, and the rear end wall of the cam rotating cavity 19 is, the cam rotating shaft 21 and the driven shaft 18 are driven by a set of bevel gears, the feeding rotating shaft 26 drives the first hollow rotating shaft 52 to rotate when rotating, the feeding rotating shaft 26 is eccentric to the first hollow rotating shaft 52, so that the rotating plate 24 is driven to be always kept in a horizontal state when rotating, the L-shaped push block 23 and the cam 20 limiting groove are in sliding fit in the push block sliding groove 22 when the cam rotating shaft 21 rotates, and the gravity block on the rotating plate 24 at the lowest side is pushed to the side close to the standing plate 29 when the L-shaped push block 23 slides to the side close to the standing plate 29.

Beneficially, the rehabilitation training assembly comprises a training block 58 slidably mounted in the training cavity 32 and having a weight groove 53 on the outer side, the weight groove 53 having a through hole therein communicating with the training cavity 32, a pull rod 34 fixedly mounted in the training block 58 and extending upward to the outer side and having a pull ring 33 fixedly mounted on the upper side thereof, a rack bar disposed on the outer side of the training block 58, a first transmission cavity 35 extending to the rear side of the rotation cavity 25 and communicating with the outer side of the training cavity 32, a first transmission shaft 37 rotatably mounted on the rear end wall of the first transmission cavity 35, a first one-way wheel 36 fixedly mounted on the first transmission shaft 37 and capable of meshing with the rack bar on the outer side of the training block 58, a second one-way wheel 64 fixedly mounted on the feeding rotation shaft 26 and disposed in the rotation cavity 25, the second one-way wheel 64 connected to a belt pulley fixed on the rear side of the first one-way wheel 36 via a belt, when the training block 58 slides upwards to the uppermost side, the rack of the training block 58 is meshed with the first one-way wheel 36, so that the first transmission shaft 37 is driven to rotate, the second one-way wheel 64 is driven to rotate, and the feeding rotating shaft 26 is driven to rotate.

Beneficially, the discharging assembly includes a lifting block 46 slidably mounted in the replacing lifting groove 45 and having racks on inner and outer sides thereof, the inner side of the replacing lifting groove 45 is communicated with a second transmission cavity 40 having a rear side communicated with the cam rotation cavity 19, the outer side of the replacing lifting groove 45 is communicated with a third transmission cavity 48 having a rear side communicated with the first transmission cavity 35, a second transmission shaft 49 is rotatably mounted on a rear end wall in the third transmission cavity 48, a second transmission gear 47 capable of meshing with the rack on the outer side of the lifting block 46 is fixedly mounted on the second transmission shaft 49, the second transmission shaft 49 and the first transmission shaft 37 are driven by a set of belt pulleys, a one-way transmission shaft 41 is rotatably mounted on a rear end wall of the second transmission cavity 40, a third transmission gear 42 capable of meshing with the rack on the inner side of the lifting block 46 and a third one-way wheel 44 located on a front side of the third transmission gear 42 are fixedly mounted on the one-way transmission shaft 41, the one-way transmission shaft 41 and the driven shaft 18 are driven by a group of belt pulleys, a rack on the outer side of the training block 58 slides upwards and is meshed with the first one-way wheel 36 to drive the first transmission shaft 37 to rotate, so that the second transmission shaft 49 is driven to rotate, the second transmission gear 47 is driven to rotate, the lifting block 46 is driven to slide upwards, and when the training block 58 presses downwards the lifting block 46, the lifting block 46 drives the third one-way wheel 44 to rotate.

Beneficially, the discharging assembly further includes a transmission sliding groove 43 communicated with the outside of the second transmission cavity 40, a transmission sliding block 17 capable of being engaged with the third one-way wheel 44 is slidably disposed in the transmission sliding groove 43, a discharging sliding groove 56 communicated with the training cavity 32 is disposed in the upper side of the transmission sliding groove 43, a discharging pushing block 28 slidably engaged with the transmission sliding block 17 through an inclined sliding fit and connected with the discharging sliding groove 56 through a discharging spring 54 to the training cavity 32 is slidably disposed in the discharging sliding groove 56, an electromagnet 57 is fixedly disposed on the outer side end wall of the discharging sliding groove 56, an iron block 55 capable of being engaged with the electromagnet 57 is fixedly disposed on the outer side of the discharging pushing block 28, a recovery groove 12 located in the rotation cavity 25 is communicated with the outer side of the training cavity 32, and the transmission sliding block 17 is driven to slide upwards when the third one-way wheel 44 rotates, thereby pushing the discharging pushing block 28 to slide outwards into the weight block groove 53, pushing the weight blocks in the weight block groove 53 into the recovery groove 12, when the patient does not pull the training block 58 to the uppermost side, the lifting block 46 does not slide upwards, the electromagnet 57 is electrified to adsorb the iron block 55, thereby driving the discharging pushing block 28 to slide outwards, and the discharging spring 54 is compressed.

Advantageously, the width adjusting assembly comprises a width adjusting chamber 11 communicated with the lower side of the sliding chamber 39, a motor 15 is fixedly installed on the lower end wall of the width adjusting chamber 11, a driving shaft 16 is dynamically connected to the upper side of the motor 15, a first connecting rod 14 is fixedly installed on the upper side of the driving shaft 16, a second connecting rod 13 is hinged to each end of the first connecting rod 14, the other end of the second connecting rod 13 is hinged to the lower side of the corresponding width sliding block 38, adjusting sliding grooves 31 are symmetrically arranged on the left and right sides of the standing plate 29, an adjusting sliding plate 27 connected with the adjusting sliding grooves 31 through adjusting springs 30 is slidably installed in the adjusting sliding grooves 31, the motor 15 is started to rotate in the forward and reverse directions, so as to drive the driving shaft 16 to rotate, so as to drive the first connecting rod 14 to rotate, and drive the width sliding block 38 to slide in and out in the sliding chamber 39 through the action of the second connecting rod, thereby adjusting the distance between the two pull rings 33, and the width slide block 38 slides inward and outward to slide the adjustment slide plate 27 in the adjustment slide groove 31 by the adjustment spring 30.

Advantageously, said first one-way wheel 36, said second one-way wheel 64, said third one-way wheel 44 comprise an inner wheel 63 and an outer wheel 62 rotatably mounted on the front side end wall of said first transmission chamber 35 and said second transmission chamber 40 respectively through a second hollow rotating shaft 61, said inner wheel 63 is a ratchet wheel, two pawls 59 connected to said outer wheel 62 through jaw springs 60 are hinged on the inner side of said outer wheel 62, said outer wheel 62 of said first one-way wheel 36 and said third one-way wheel 44 is a gear, said outer wheel 62 of said second one-way wheel 64 is a pulley, said first one-way wheel 36 rotates said first transmission shaft 37 when said training block 58 slides upwards, said first one-way wheel 36 does not rotate said first transmission shaft 37 when said training block 58 slides downwards, said second one-way wheel 64 rotates said feeding rotating shaft 26 one sixth of a revolution when said training block 58 slides upwards, when the lifting block 46 slides upwards, the third one-way wheel 44 does not drive the one-way transmission shaft 41 to rotate, and when the lifting block 46 slides downwards, the third one-way wheel 44 drives the one-way transmission shaft 41 to rotate.

In the initial state, the width sliding block 38 is located at the innermost side, the L-shaped pushing block 23 is located at the outermost side, the training block 58 is located at the lowermost side, the lifting block 46 and the transmission sliding block 17 are located at the lowermost side, the discharging pushing block 28 is located at the innermost side, the discharging spring 54 is in the normal tension state, the adjusting sliding plate 27 is located at the innermost side, the adjusting spring 30 is in the compression state, and the clamping jaw spring 60 is in the normal tension state.

When the patient starts to work, the patient stands on the standing plate 29, the motor 15 is started to rotate positively, so as to drive the driving shaft 16 to rotate, so as to drive the first connecting rod 14 to rotate, the first connecting rod 14 drives the width sliding block 38 to slide outwards in the sliding cavity 39 through the action of the second connecting rod 13 when rotating, so as to adjust the distance between the two pull rings 33 according to the requirement of the patient, the width sliding block 38 drives the adjusting sliding plate 27 to slide outwards in the adjusting sliding groove 31 due to the action of the adjusting spring 30 when sliding towards two sides, the weight blocks are placed on the rotating plate 24 according to the weight sequence, the patient pulls upwards the pull rings 33, so as to drive the pull rods 34 and the training blocks 58 to slide upwards, when the training blocks 58 slide to the uppermost side, the rack outside the training blocks 58 is meshed with the first one-way wheel 36, so as to drive the first transmission shaft 37 to rotate, so as to drive the, thereby driving the first connecting rod 50 to rotate for one sixth of a circle, the feeding rotating shaft 26 drives the first hollow rotating shaft 52 to rotate when rotating, the feeding rotating shaft 26 is eccentric to the first hollow rotating shaft 52, thereby driving the rotating plate 24 to be always kept in a horizontal state when rotating, at the same time, the first transmission shaft 37 drives the second transmission shaft 49 to rotate, thereby driving the second transmission gear 47 to rotate, thereby driving the lifting block 46 to slide upwards into the training cavity 32, the third one-way wheel 44 does not drive the one-way transmission shaft 41 to rotate, the patient puts down the training block 58, the first one-way wheel 36 does not drive the first transmission shaft 37 to rotate, when the training block 58 presses the lifting block 46 downwards, the lifting block 46 is meshed with the third one-way wheel 44, thereby driving the third one-way transmission shaft 41 to rotate, thereby driving the third transmission gear 42 to rotate, thereby driving the transmission sliding block 17 to slide upwards, thereby pushing the discharging push block 28 to slide outwards into the weight block groove 53 to push lighter weight blocks in the weight block groove 53 into the recovery groove 12, compressing the discharging spring 54, simultaneously driving the driven shaft 18 to rotate by the one-way transmission shaft 41, thereby driving the cam rotating shaft 21 to rotate, thereby driving the cam 20 to rotate, sliding the L-shaped push block 23 and the cam 20 limiting groove in sliding fit in the push block sliding groove 22, pushing the gravity block on the lowermost rotating plate 24 into the weight block groove 53 when the L-shaped push block 23 slides towards the side close to the standing plate 29, returning the L-shaped push block 23 into the push block sliding groove 22, and pulling the training block 58 again by the patient when the discharging push block 28 slides inwards back into the discharging sliding groove 56 due to the effect of the discharging spring 54; when the patient can not pull the training block 58 to the top, the lifting block 46 is always positioned at the bottom, after the patient puts down the training block 58, the electromagnet 57 is electrified to adsorb the iron block 55, the discharging spring 54 is compressed, the discharging pushing block 28 slides outwards to push the heavy blocks in the heavy block groove 53 to the recovery groove 12, the electromagnet 57 is powered off, the discharging pushing block 28 slides inwards under the action of the discharging spring 54, and the device is reset.

The above description is only an embodiment of the invention, but the scope of the invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the invention. Therefore, the protection scope of the invention should be subject to the protection scope defined by the claims.

Claims

1. The utility model provides an upper limbs strength rehabilitation training device of ability automatic change dynamics, includes the main part, its characterized in that: a sliding cavity with the upper side communicated with the outside is arranged in the main body, a standing plate is fixedly arranged on the front end wall and the rear end wall of the center of the sliding cavity, width sliding blocks are symmetrically arranged on the left side and the right side of the standing plate in a sliding manner, a width adjusting assembly is arranged on the lower side of each width sliding block, a training cavity with the upper side communicated with the outside is arranged in each width sliding block, a rehabilitation training assembly is arranged in each training cavity, a replacing lifting groove is communicated with the lower side of each training cavity, a discharging assembly is arranged in each replacing lifting groove, a rotating cavity is communicated with the outer side of each training cavity, a feeding assembly is arranged in each rotating cavity and comprises a feeding rotating shaft which is rotatably arranged on the rear end wall of each rotating cavity, six first connecting rods are fixedly arranged on the feeding rotating shafts at equal angles, a rotating plate is hinged to, first hollow axis of rotation front side is isometric articulated to have six second connecting rods, the second connecting rod other end with the rotor plate is articulated, the rotor plate is the horizontality, it is equipped with the ejector pad sliding tray to rotate the chamber outside intercommunication, ejector pad sliding tray downside intercommunication is equipped with the cam and rotates the chamber, the cam rotates chamber outside end wall and rotates and installs the cam axis of rotation, fixed mounting has the cam that contains the spacing groove in the cam axis of rotation, sliding in the ejector pad sliding tray be equipped with cam spacing groove sliding fit's L type ejector pad, the cam rotates chamber rear end wall and rotates and installs the driven shaft, the cam axis of rotation the driven shaft is through a set of bevel gear transmission.

2. The upper limb strength rehabilitation training device capable of automatically changing force according to claim 1, characterized in that: the rehabilitation training subassembly includes slidable mounting and is in the training piece that the outside in training intracavity contains the heavy object groove, heavy object inslot side contain with the communicating through-hole in training chamber, fixed mounting has the pull rod that upwards extends to outside and upside fixed mounting has the pull ring in the training piece, the training piece outside is equipped with the rack, training chamber outside intercommunication is equipped with and extends to rotate the first transmission chamber of chamber rear side, first transmission chamber rear end wall rotates and installs first transmission shaft, fixed mounting on the first transmission shaft can with training piece outside rack toothing's first one-way wheel, rotate the intracavity be equipped with feeding axis of rotation fixed mounting's second one-way wheel, the second one-way wheel with fix the belt pulley of first one-way wheel rear side passes through the belt and connects.

3. The upper limb strength rehabilitation training device capable of automatically changing force according to claim 2, characterized in that: the ejection of compact subassembly includes slidable mounting change the elevator that the lift inslot and inside and outside both sides contain the rack, change the lift inslot side intercommunication be equipped with the rear side with the second transmission chamber of cam rotation chamber intercommunication, it is equipped with the rear side and to change the lift inslot side intercommunication the third transmission chamber of first transmission chamber intercommunication, third transmission intracavity rear end wall rotates and installs the secondary drive axle, fixed mounting on the secondary drive axle can with the second drive gear of elevator outside rack toothing, the secondary drive axle the first drive axle is through a set of belt pulley transmission, second transmission chamber rear end wall rotates and installs one-way transmission shaft, one-way transmission shaft go up fixed mounting can with the third drive gear of elevator inside rack toothing and be located the third one-way wheel of third drive gear front side, one-way transmission shaft, The driven shaft is driven by a group of belt pulleys.

4. The upper limb strength rehabilitation training device capable of automatically changing force according to claim 3, characterized in that: ejection of compact subassembly still include with the transmission sliding tray of second transmission chamber outside intercommunication, slide in the transmission sliding tray be equipped with can with the transmission sliding block of third one-way wheel meshing, transmission sliding tray upside intercommunication be equipped with the ejection of compact sliding tray of training chamber intercommunication, slide in the ejection of compact sliding tray be equipped with the transmission sliding block pass through inclined plane sliding fit and with ejection of compact sliding tray pass through ejection of compact spring coupling and can slide extremely the ejection of compact ejector pad in training chamber, ejection of compact sliding tray outside end wall fixed mounting has the electro-magnet, ejection of compact ejector pad outside fixed mounting have can with electro-magnet complex iron plate, training chamber outside intercommunication is equipped with and is located the accumulator of rotation chamber downside.

5. The upper limb strength rehabilitation training device capable of automatically changing force according to claim 1, characterized in that: the width adjusting assembly comprises a width adjusting cavity communicated with the lower side of the sliding cavity, a motor is fixedly mounted on the lower end wall of the width adjusting cavity, the upper side of the motor is in power connection with a driving shaft, a first connecting rod is fixedly mounted on the upper side of the driving shaft, two ends of the first connecting rod are respectively hinged to a second connecting rod, the other end of the second connecting rod corresponds to the width sliding block, adjusting sliding grooves are symmetrically arranged on the left side and the right side of the standing plate, and adjusting sliding plates connected with the adjusting sliding grooves through adjusting springs are arranged in the adjusting sliding grooves in a sliding mode.

6. The upper limb strength rehabilitation training device capable of automatically changing force according to claim 4, characterized in that: the first one-way wheel, the second one-way wheel, the third one-way wheel include the interior wheel and respectively with first transmission chamber the second transmission chamber front end lateral wall passes through the foreign steamer of the hollow axis of rotation of second and installs, interior wheel is the ratchet, the foreign steamer inboard articulate have two with the foreign steamer passes through the pawl of clamping jaw spring coupling, first one-way wheel, the third one-way wheel the foreign steamer is the gear, the second one-way wheel the foreign steamer is the belt pulley.