CN114917551A

CN114917551A - Anti-flexion and anti-extension training device for hand joints

Info

Publication number: CN114917551A
Application number: CN202210778348.8A
Authority: CN
Inventors: 高楠
Original assignee: Peking University Shenzhen Hospital
Current assignee: Peking University Shenzhen Hospital
Priority date: 2022-07-04
Filing date: 2022-07-04
Publication date: 2022-08-19
Anticipated expiration: 2042-07-04
Also published as: CN114917551B

Abstract

The invention discloses a hand joint anti-buckling stretching training device which comprises a base, an elastic resistance device, finger sleeves and a rotating adjusting frame, wherein the base is provided with a first end and a second end, and the second end is suitable for supporting the arms of a user; an elastic damper disposed at the first end and configured to provide an elastic resistance; the finger stall is connected to the elastic resistance device through the pull rope, and when the finger stall moves along with the fingers of a user, the pull rope pulls the elastic resistance device to provide elastic resistance through the elastic resistance device; the rotation adjusting frame is arranged on the base and located between the first end and the second end, and the rotation adjusting frame is configured to pivot around an axis which extends along the width direction of the base; the pull rope is arranged on the rotary adjusting frame in a spanning mode so as to adjust the angle of the pull rope through the rotation of the rotary adjusting frame. According to the hand joint anti-buckling extension training device provided by the embodiment of the invention, the bending operation is flexible and convenient, the training effect is better, and the amplitude of the finger bending action can be adjusted.

Description

Anti-flexion and anti-extension training device for hand joints

Technical Field

The invention relates to a rehabilitation training device, in particular to a hand joint anti-buckling extension training device.

Background

The finger dysfunction usually needs rehabilitation training, for example, the finger joint stiffness and swelling caused by trauma, namely the joint range of motion of the hand needs training, joint loosening can be performed, then hot compress is performed, and active finger flexion and extension training is performed.

In the related art, when carrying out the flexion training of finger joint, adopt some supplementary braces to carry out the training auxiliarily usually, improve the training effect, for example adopt some elasticity gloves or rubber band to assist the crooked action of finger, however, no matter elasticity gloves in time, still the rubber band, it is inconvenient to dress during the use, the operation is also inflexible, especially on gloves dress and put on hand, produces uncomfortable sense, the easy interference between the finger during operation.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the invention aims to provide a hand joint anti-flexion and anti-extension training device.

To achieve the above object, a hand joint flexion and extension resistance training device according to an embodiment of the present invention includes:

a base having a first end and a second end, the second end adapted to cradle an arm of a user;

an elastic resistor disposed at the first end and configured to provide elastic resistance;

the finger sleeve is connected to the elastic resistance device through a pull rope, and when the finger sleeve moves along with the fingers of a user, the pull rope pulls the elastic resistance device to provide elastic resistance through the elastic resistance device;

a rotation adjustment bracket mounted on the base between the first and second ends, the rotation adjustment bracket configured to be pivotable about an axis extending in a width direction of the base;

the pull rope is arranged on the rotating adjusting frame in a straddling mode, and the angle of the pull rope is adjusted through rotation of the rotating adjusting frame.

According to the anti-buckling stretching training device for the joints, the finger sleeves are connected with the elastic resistance devices through the pull ropes, and the rotating adjusting frames are arranged between the finger sleeves and the elastic resistance devices, so that on one hand, a user can flatly place arms on the base and sleeve the finger sleeves on fingers, and when the fingers are bent, elastic resistance can be provided through the elastic resistance devices, so that a good buckling stretching rehabilitation training effect can be achieved, and in addition, only the finger sleeves need to be sleeved during use, the burden of hands is small, the bending operation is flexible and convenient, and the training effect is better; on the other hand, the angle of the pull rope is adjusted by adjusting the rotary adjusting frame, and the angle change of the pull rope can change the amplitude of the bending action of the fingers, so that the amplitude of the bending action of the fingers can be adjusted according to the training requirements of a user, reasonable and effective training is realized, and unreasonable amplitude is prevented to cause finger damage.

In addition, the hand joint anti-flexion and anti-extension training device according to the above embodiment of the invention may also have the following additional technical features:

according to one embodiment of the invention, the elastic damper comprises:

a housing having a chute extending along a length of the base;

the sliding block is assembled in the sliding groove in a sliding mode and can slide along the length direction of the base;

the first spring is arranged in the sliding groove, one end of the first spring abuts against the sliding block, the other end of the first spring abuts against the shell, and the compression direction of the first spring is consistent with the sliding direction of the sliding block;

wherein when the finger sleeve acts with the finger of the user, the pull rope pulls the slider to provide resistance by the slider compressing the first spring.

According to one embodiment of the invention, the rotating adjustment bracket comprises:

the two arms of the U-shaped frame are respectively pivoted on the two sides of the base in the width direction;

the branch post is arranged at the top of the U-shaped frame and extends along the height direction of the base, a plurality of wire passing grooves for the stay cord to pass through are formed in the branch post, and the plurality of wire passing grooves are arranged at intervals along the height direction of the branch post.

According to one embodiment of the present invention, the wire passing groove is inclined downward from outside to inside in a radial direction of the strut.

According to one embodiment of the invention, a first threaded hole and a plurality of tooth grooves are formed in the side surface of the base, the tooth grooves are arranged at intervals around the circumferential direction of the first threaded hole, a through hole and a plurality of tooth parts are formed in a support arm of the U-shaped frame, and the tooth parts are arranged at intervals around the circumferential direction of the through hole;

the rotating adjusting frame further comprises a pin joint bolt and a second spring, the rod part of the pin joint bolt penetrates through the through hole and then is in threaded fit with the second threaded hole, the second spring is sleeved on the pin joint bolt in a penetrating mode, one end of the second spring abuts against the head of the second bolt, and the other end of the second spring abuts against the supporting arm of the U-shaped frame.

According to one embodiment of the invention, the second end is provided with a restraining strap for securing a palm of a user at the second end.

According to one embodiment of the invention, the elastic resistor further comprises a positioning block and an adjusting bolt, the positioning block is slidably arranged in the sliding chute, and the other end of the first spring is abutted against the positioning block;

the end, close to the second end, of the shell is provided with a second threaded hole, the rod part of the adjusting bolt is in threaded fit with the second threaded hole and extends into the shell to be abutted against the positioning block, and the head part of the adjusting bolt is located outside the shell to be operated by a user to drive the adjusting bolt to move so as to adjust the initial length of the first spring.

According to an embodiment of the present invention, the positioning block has a guiding rod extending to a side close to the sliding block along the sliding direction, the sliding block has a sliding hole in sliding fit with the guiding rod, and the first spring is sleeved on the guiding rod.

According to one embodiment of the present invention, two side walls of the housing are respectively provided with wall grooves extending along the sliding direction;

two sides of the sliding block are respectively provided with a pivot shaft, and the two pivot shafts respectively extend out of the two wall grooves and can slide along the wall grooves;

the elastic resistor further comprises a U-shaped piece, two side walls of the U-shaped piece are respectively connected with the pivot shaft in a pivoting mode, one end of the pull rope is connected with the U-shaped piece, and the other end of the pull rope is connected with the finger stall.

According to one embodiment of the present invention, the top surface of the second end is provided with a flexible support pad for supporting the arm of the user.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present 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, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural view of a device for training anti-flexion and anti-extension of hand joints according to an embodiment of the present invention;

FIG. 2 is an exploded view of the device for training the hand joint to resist flexion and extension according to the embodiment of the present invention;

FIG. 3 is a schematic diagram of the elastic resistance device of the device for training extension and flexion of the joint of the hand according to the embodiment of the present invention;

FIG. 4 is an exploded view of an elastic resistance in the flexion-resistance extension training device of the hand joint according to an embodiment of the present invention.

Reference numerals:

10. a base;

20. an elastic resistance device;

201. a housing;

h202, wall grooves;

h203, a second threaded hole;

202. a slider;

2021. a pivotal shaft;

203. a first spring;

204. positioning blocks;

2041. a guide bar;

205. adjusting the bolt;

206. a U-shaped member;

30. finger stall;

31. pulling a rope;

40. a binding belt;

41. a belt ring;

50. a flexible support pad;

501. a first threaded hole;

502. a tooth socket;

60. rotating the adjusting frame;

601. a U-shaped frame;

601a, a through hole;

601b, a tooth portion;

602. a branch post;

602a, a wire passing groove;

603. a pivot bolt;

604. a second spring.

The implementation, functional features and advantages of the present invention will be further described with reference to the accompanying drawings.

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 drawings are exemplary and intended to be illustrative of the present invention and should not be construed as limiting the present invention, and all other embodiments that can be obtained by one skilled in the art based on the embodiments of the present invention without inventive efforts shall fall within the scope of protection of 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," "circumferential," "radial," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present 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 present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, 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 specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; 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 by those skilled in the art according to specific situations.

In the present invention, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation that the first and second features are not in direct contact, but are in contact via another feature between them. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The hand joint anti-flexion and extension training device according to the embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Referring to fig. 1 to 4, the hand joint flexion and extension resistance training device according to the embodiment of the present invention comprises a base 10, an elastic resistance device 20, a finger cot 30 and a rotation adjusting bracket 60.

Specifically, the base 10 has a first end and a second end adapted to cradle an arm of a user. The base 10 can be placed on a support surface, such as a flat object like a table, to facilitate rehabilitation training.

An elastic damper is disposed at the first end and is configured to provide an elastic resistance. The finger cuff 30 is connected to the elastic resistance 20 by a pull string 31, and when the finger cuff 30 is moved with the user's finger, the pull string 31 pulls the elastic resistance 20 to provide elastic resistance through the elastic resistance 20.

When training, establish dactylotheca 30 on user's finger, when pointing crooked, dactylotheca 30 passes through stay cord 31 pulling elastic resistance ware 20, elastic resistance ware 20 keeps fixed and has elasticity and compression, when elastic resistance ware 20 is compressed, can pass through elastic resistance, this elastic resistance passes through stay cord 31 and transmits to the finger, so, the elastic resistance is crooked to be overcome to the finger, and when the power of finger is removed, elastic resistance ware 20 elasticity resets, and through stay cord 31 pulling dactylotheca 30, make the finger reset fast and straighten, so relapse, can reach good bucking and extend the training effect.

A rotation adjusting bracket 60 is provided on the base 10 between the first end and the second end, the rotation adjusting bracket 60 being configured to be pivotable about an axis extending in the width direction of the base 10. The pulling rope 31 is spanned on the rotation adjusting bracket 60, so that the angle of the pulling rope 31 is adjusted through the rotation of the rotation adjusting bracket 60.

That is, the rotation adjusting bracket 60 can rotate relative to the base 10, the pulling rope 31 can be supported by the rotation adjusting bracket 60, so that the pulling rope 31 forms a certain angle with the horizontal direction, when the rotation adjusting bracket 60 is rotated, the angle of the pulling rope 31 can be changed due to the change of the vertical height of the rotation adjusting bracket 60, the larger the angle of the pulling rope 31 is, the smaller the amplitude of the bending action of the finger is, and thus, the angle of the pulling rope 31 can be adjusted by the rotation of the rotation adjusting bracket 60, and further, the adjustment of the amplitude of the bending action can be realized. In the specific training process, the training can be carried out in a relatively small bending action amplitude in the early stage, and the joints of the fingers are gradually restored in the later stage, so that the training can be properly carried out in a large bending action amplitude, and the purpose of effective training in a gradual manner is achieved.

According to the hand joint anti-buckling stretching training device provided by the embodiment of the invention, the finger sleeve 30 is connected with the elastic resistance device 20 through the pull rope 31, and the rotation adjusting frame 60 is arranged between the finger sleeve 30 and the elastic resistance device 20, so that on one hand, a user can flatly place an arm on the base 10 and sleeve the finger sleeve 30 on a finger, and when the finger bends, the elastic resistance can be provided through the elastic resistance device 20, so that a good buckling stretching rehabilitation training effect can be achieved, and in addition, only the finger sleeve 30 needs to be sleeved during use, the burden of a hand is small, the bending operation is flexible and convenient, and the training effect is better; on the other hand, the angle of the pull rope 31 can be adjusted by adjusting the rotary adjusting frame 60, and the angle change of the pull rope 31 can change the amplitude of the finger bending action, so that the amplitude of the finger bending action can be adjusted according to the training requirements of a user, reasonable and effective training is realized, and unreasonable amplitude is prevented from causing finger damage.

Referring to fig. 3 to 4, in some embodiments of the present invention, the elastic damper includes a housing 201, a slider 202, and a first spring 203, wherein the housing 201 has a sliding groove extending along a length direction of the base 10. The sliding block 202 is slidably fitted in the sliding groove and is slidable along the length of the base 10.

The first spring 203 is arranged in the sliding groove, one end of the first spring 203 abuts against the sliding block 202, the other end of the first spring 203 abuts against the shell 201, and the compression direction of the first spring 203 is consistent with the sliding direction of the sliding block 202. When the finger stall 30 is moved with the finger of the user, the pull cord 31 pulls the slider 202 to provide resistance by the slider 202 compressing the first spring 203.

That is to say, slider 202 can slide in the spout, and dactylotheca 30 is connected to slider 202 through stay cord 31, when the finger is crooked, dactylotheca 30 passes through stay cord 31 pulling slider 202 and slides to the second end, slider 202 compresses first spring 203, the resistance that first spring 203 provided transmits to the finger through stay cord 31, so, the finger needs overcome the elastic resistance crooked, and when the power of finger is removed, the elastic force of first spring 203 forces slider 202 to slide to the direction of keeping away from the second end and reset, then slider 202 passes through stay cord 31 pulling dactylotheca 30, make the finger reset fast and straighten, so relapse, can realize that the finger bucking extends the training.

In this embodiment, through the elastic damper with the above structure, the sliding block 202 slides and compresses the first spring 203, so as to provide stable and reliable elastic resistance, and along with the compression of the first spring 203, the elastic resistance gradually increases, so that a training mode with gradually changing resistance is provided for the finger bending training, and the training mode is more scientific and effective.

Referring to fig. 2, in an embodiment of the present invention, the rotation adjusting bracket 60 includes a U-shaped bracket 601 and a branch post 602, wherein two arms of the U-shaped bracket 601 are respectively pivoted on two sides of the base 10 in the width direction.

The strut 602 is disposed on the top of the U-shaped frame 601 and extends along the height direction of the base 10, a plurality of wire passing grooves 602a through which the pulling rope 31 can pass are disposed on the strut 602, and the plurality of wire passing grooves 602a are arranged at intervals along the height direction of the strut 602.

That is to say, the U-shaped frame 601 can pivot relative to the base 10, the branch post 602 is disposed on the U-shaped frame 601, the pull rope 31 can pass through any one of the wire passing slots 602a on the branch post 602, on one hand, the inclination of the branch post 602 can be adjusted by rotating the U-shaped frame 601, so as to adjust the angle of the pull rope 31 passing through the wire passing slot 602a, on the other hand, the pull rope 31 is put into different wire passing slots 602a by different heights of the wire passing slots 602a on the branch post 602, and the angle of the pull rope 31 is different, so that the angle of the pull rope 31 is adjusted by two sides, different wire passing slots 602a realize fine angle adjustment, and the coarse rotation of the U-shaped frame 601 can realize fine angle adjustment, which combines with the fine angle adjustment, that is, fine bending amplitude adjustment can be realized.

Advantageously, the wire passing groove 602a is inclined downwards from outside to inside in the radial direction of the branch wire column 602, so that the pulling rope 31 is not easy to be disengaged from the wire passing groove 602a, and the structure is ensured to be reliable.

Referring to fig. 2, in some embodiments of the present invention, a first threaded hole 501 and a plurality of tooth grooves 502 are formed in a side surface of the base 10, the plurality of tooth grooves 502 are arranged at intervals around a circumference of the first threaded hole 501, a through hole 601a and a plurality of tooth portions 601b are formed in a support arm of the U-shaped frame 601, and the plurality of tooth portions 601b are arranged at intervals around a circumference of the through hole 601 a.

The rotating adjusting bracket 60 further includes a pivot bolt 603 and a second spring 604, a rod portion of the pivot bolt 603 passes through the through hole 601a and then is in threaded fit with the first threaded hole 501, the second spring 604 is sleeved on the pivot bolt 603 in a penetrating manner, one end of the second spring 604 abuts against a head portion of the second bolt, and the other end of the second spring 604 abuts against a support arm of the U-shaped bracket 601.

That is, the two arms of the U-shaped frame 601 are engaged with the two sides of the base 10 through the tooth slots 502 and the tooth portions 601b, and the second spring 604 is disposed on the outer side of the arm, and the tooth portions 601b and the tooth slots 502 are reliably engaged by the elastic force exerted by the second spring 604, so that the U-shaped frame 601 can be maintained at a predetermined position without external force intervention, and when the angle of the U-shaped frame 601 needs to be adjusted, external force can be exerted on the U-shaped frame 601 to force the U-shaped frame 601 to rotate, and the tooth portions 601b are switched from one tooth slot 502 to the other tooth slot 502, so that free adjustment of the U-shaped frame 601 can be realized, and the U-shaped frame can be stably and reliably maintained at a desired position after adjustment, and the use is simple and convenient, and the structure is reliable and stable.

Referring to fig. 1-2, in some embodiments of the present invention, the second end is provided with a restraining strap 40 for securing the palm of the user at the second end. In use, lie flat the arm at the second end of base 10 after, can utilize the constraint area 40 earlier to fix the palm constraint on base 10, so, in the finger training process, can prevent that the palm part from following the action, lead to pointing the action insufficient, and the effect that causes descends the scheduling problem, and the palm is fixed the back, and the finger can fully be crooked, reaches the training effect of preferred.

Referring to fig. 3 to 4, in an embodiment of the present invention, the elastic resistor 20 further includes a positioning block 204 and an adjusting bolt 205, the positioning block 204 is slidably disposed in the sliding slot, and the other end of the first spring 203 abuts against the positioning block 204.

One end of the shell 201, which is close to the second end, is provided with a second threaded hole H203, a rod part of the adjusting bolt 205 is in threaded fit with the second threaded hole H203 and extends into the shell 201 to abut against the positioning block 204, and a head part of the adjusting bolt 205 is located outside the shell 201, so that a user can operate and drive the adjusting bolt 205 to move, thereby adjusting the initial length of the first spring 203.

In this embodiment, when the adjusting bolt 205 is rotated in one direction, the rod of the adjusting bolt 205 moves towards the inside of the housing 201, and the rod of the adjusting bolt 205 pushes the positioning block 204 to slide in a direction close to the slider 202, so that the distance between the positioning block 204 and the slider 202 decreases, and the first spring 203 located between the positioning block 204 and the slider 202 is compressed, so that the initial length of the first spring 203 may decrease. Conversely, when the adjusting bolt 205 is rotated in the other direction, the rod portion of the adjusting bolt 205 moves towards the outside of the housing 201, the rod portion of the adjusting bolt 205 gradually loosens the positioning block 204, the positioning block 204 slides away from the slider 202 under the action of the first spring 203, the distance between the positioning block 204 and the slider 202 increases, the first spring 203 between the positioning block and the slider 202 extends, the initial length of the first spring 203 can be increased, and in this case, the elastic resistance to be overcome during the finger bending action is reduced.

From this, can be through rotatory adjusting bolt 205, realize freely adjusting the resistance that first spring 203 provided, and then adapt to user's finger training requirement, for example earlier stage can adjust the resistance to less relatively, and later stage can adjust the resistance to slightly bigger, so, can realize reasonable effectual pertinence training.

Referring to fig. 3 to 4, in an embodiment of the present invention, the positioning block 204 has a guiding rod 2041 extending to a side close to the sliding block 202 along the sliding direction, the sliding block 202 has a sliding hole in sliding fit with the guiding rod 2041, and the first spring 203 is sleeved on the guiding rod 2041.

When the slider 202 slides in the direction approaching the second end along with the pull rope 31, the slider 202 approaches the positioning block 204, and the slider 202 can smoothly and reliably slide under the sliding fit between the slide hole and the guide rod 2041, and the spring can be ensured to be smoothly and reliably compressed, so that the entire sliding motion is more stable and reliable.

In one embodiment of the present invention, both side walls of the housing 201 are respectively provided with wall grooves H202 extending in the sliding direction. The two sides of the sliding block 202 are respectively provided with a pivot shaft 2021, and the two pivot shafts 2021 respectively extend from the two wall grooves H202 and are slidable along the wall grooves H202.

The elastic resistor 20 further comprises a U-shaped member 206, two side walls of the U-shaped member 206 are respectively pivotally connected to the pivot shaft 2021, one end of the pulling rope 31 is connected to the U-shaped member 206, and the other end of the pulling rope 31 is connected to the finger stall 30.

That is to say, in this embodiment, the pivot shafts 2021 are disposed on two sides of the sliding block, and the U-shaped component 206 is pivotally connected to the pivot shafts 2021, so that during the training process, when the finger is bent, the direction of the pulling rope 31 may incline upwards, and at this time, the U-shaped component 206 can rotate upwards in a self-adaptive manner to keep the direction consistent with the direction of the pulling rope 31, so that the pulling rope 31 pulls the sliding block 202 more smoothly, and the finger training operation is more stable and reliable.

In one embodiment of the present invention, the bottom of the housing 201 is open to form an opening, and the slider 202, the spring, the positioning block 204 and the guide rod 2041 are installed into the housing 201 from the opening; the two ends of the housing 201 are respectively provided with an ear part, and the ear parts are fixed on the top surface of the base 10 through fasteners, so that the opening is closed by the base 10.

In this embodiment, an opening is formed at the bottom of the housing 201, which facilitates the assembly of the slider 202, the spring, the positioning block 204 and the guiding rod 2041, and ensures that the housing 201 is fixed on the top surface of the base 10 after the assembly is completed, the assembly relationship between the components is stable and reliable, and in addition, the overall structure is simple.

Advantageously, the top surface of the second end is provided with a flexible support pad 50 to support the user's arms, so that the user's comfort is better when training with the arms in contact with the flexible support pad 50.

In an embodiment of the present invention, a first magic tape is disposed on the restraining belt 40, a belt ring 41 is disposed at one end of the restraining belt 40, a second magic tape is disposed at the other end of the restraining belt 40, and the first magic tape is folded and adhered after the belt ring 41 passes through the first magic tape.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings, or any other related technical fields, which are directly or indirectly applied to the present invention, are included in the scope of the present invention.

Claims

1. A hand joint flexion and extension resistance training device is characterized by comprising:

wherein the pull rope is arranged on the rotary adjusting frame in a straddling manner so as to adjust the angle of the pull rope through the rotation of the rotary adjusting frame.

2. The hand joint flexion-resistant extension training device of claim 1, wherein the elastic damper comprises:

a housing having a chute extending along a length of the base;

wherein when the finger sleeve is actuated by a finger of a user, the pull rope pulls the slider to provide resistance by the slider compressing the first spring.

3. The device of claim 1, wherein the rotational adjustment bracket comprises:

4. The device of claim 3, wherein the wire passage slot is inclined downward from outside to inside in a radial direction of the strut.

5. The hand joint flexion and extension resistance training device as claimed in claim 3, wherein the side of the base is provided with a first threaded hole and a plurality of tooth grooves, the tooth grooves are circumferentially spaced around the second threaded hole, the support arm of the U-shaped frame is provided with a through hole and a plurality of teeth, and the teeth are circumferentially spaced around the through hole;

the rotating adjusting frame further comprises a pin-joint bolt and a second spring, the rod part of the pin-joint bolt penetrates through the through hole and then is in threaded fit with the first threaded hole, the second spring is sleeved on the pin-joint bolt in a penetrating mode, one end of the second spring abuts against the head of the second bolt, and the other end of the second spring abuts against the support arm of the U-shaped frame.

6. The device of claim 1 wherein the second end is provided with a restraining strap for securing the palm of the user to the second end.

7. The hand joint flexion and extension resistance training device according to claim 2, wherein the elastic resistance device further comprises a positioning block and an adjusting bolt, the positioning block is slidably disposed in the sliding groove, and the other end of the first spring abuts against the positioning block;

8. The hand joint flexion and extension resistance training device as claimed in claim 7, wherein the positioning block is provided with a guide rod extending to a side close to the slider along the sliding direction, the slider is provided with a sliding hole in sliding fit with the guide rod, and the first spring is sleeved on the guide rod.

9. The device for training extension and flexion of a hand joint according to claim 2, wherein the two side walls of the housing are respectively provided with wall grooves extending along the sliding direction;

10. The device of claim 4, wherein the top surface of the second end is provided with a flexible support pad for supporting the arm of the user.