CN111744135A

CN111744135A - Linear electromagnetic resistance hand function training device

Info

Publication number: CN111744135A
Application number: CN202010555764.2A
Authority: CN
Inventors: 赵伟; 郝术金
Original assignee: Beijing Haolantongxu Technology & Trade Co ltd
Current assignee: Beijing Haolan Tongxu Technology Development Co.,Ltd.
Priority date: 2020-06-17
Filing date: 2020-06-17
Publication date: 2020-10-09
Anticipated expiration: 2040-06-17
Also published as: CN111744135B

Abstract

The application discloses sharp electromagnetic resistance hand function trainer includes: a single chip microcomputer; and a resistance assembly comprising: a body having a cavity therein; the pull rope encoder is arranged at one end of the cavity and is connected with the single chip microcomputer; the sliding magnet block is positioned in the cavity and is connected with the pull rope encoder; the magnetic induction coils are constructed on the outer circumference of the body and are connected with the single chip microcomputer; and the first steel wire rope is arranged in the cavity, the first end of the first steel wire rope is connected with the sliding magnet block, and the second end of the first steel wire rope extends out of the cavity and is connected with the hand of a user. When a user pulls the first steel wire rope by hands, the sliding magnet block reciprocates in the cavity, the displacement of the stay cord encoder is fed back to the single chip microcomputer, and the single chip microcomputer controls the magnetic flux of the electromagnetic coil in real time so as to achieve the effect that the resistance of the magnetic field of the sliding magnet block is constant in the displacement distance, and therefore the effect that the resistance is constant in the pulling process is achieved.

Description

Linear electromagnetic resistance hand function training device

Technical Field

The application relates to the technical field of hand training, in particular to a linear electromagnetic resistance hand function training device.

Background

For patients with hand function impairment due to stroke, spinal cord injury or trauma, fine hand function rehabilitation is very important, and can promote plasticity repair of central and peripheral nervous systems. At present, a rehabilitation system for exercising the fine movement of hand functions mainly takes a spring, a weight and a rubber strip as resistance sources, and the resistance is constant and easy to change after long-time use, so that the rehabilitation effect is reduced.

Disclosure of Invention

It is an object of the present application to overcome the above problems or to at least partially solve or alleviate the above problems.

According to an aspect of the present application, there is provided a linear electromagnetic resistance hand function training device, including:

a control module and a resistance assembly;

the control module comprises a singlechip;

a resistance assembly, comprising:

a body having a cavity therein;

the pull rope encoder is arranged at one end of the cavity and is connected with the single chip microcomputer;

the sliding magnet block is positioned in the cavity and is connected with the pull rope encoder;

the magnetic induction coils are constructed on the outer circumference of the body and are connected with the single chip microcomputer; and

the first steel wire rope is arranged in the cavity, the first end of the first steel wire rope is connected with the sliding magnet block, and the second end of the first steel wire rope extends out of the cavity and is connected with the hand of a user;

when the user pulls the first steel wire rope by hand, the sliding magnet block is made to reciprocate in the cavity, and the single chip microcomputer is used for controlling the flux of the magnetic induction coil so as to enable the sliding magnet block and the magnetic induction coil to generate constant resistance.

The linear electromagnetic resistance hand function training device comprises a control module and a resistance component, wherein the control module comprises a singlechip, the resistance component comprises a body, the inner part of the magnetic induction coil is provided with a cavity, the pull rope encoder is arranged at one end of the cavity and is connected with the single chip microcomputer, the sliding magnet block is positioned in the cavity and is connected with the pull rope encoder, the plurality of magnetic induction coils are constructed on the outer circumference of the body and are connected with the single chip microcomputer, the first steel wire rope is arranged in the cavity, the first end of the sliding magnet block is connected with the sliding magnet block, the second end of the sliding magnet block extends out of the cavity and is connected with the hand of a user, when the hand of the user pulls the first steel wire rope, the sliding magnet block reciprocates in the cavity, the displacement of the pull rope encoder is fed back to the singlechip, the singlechip controls the magnetic flux of the electromagnetic coil in real time, so as to achieve the effect that the magnetic flux generated by the sliding magnet block in the displacement distance is constant, thereby realizing the effect of constant resistance in the pulling process.

In addition, according to the straight electromagnetic resistance hand function training device of this application specification, can also have following additional technical features:

in the above-described technical solution, optionally,

the pull rope encoder is connected with the sliding magnet block through a second steel wire rope.

In the above-described technical solution, optionally,

the cavity has a diameter larger than a diameter of the sliding magnet block such that a first gap is formed between the cavity and the sliding magnet block.

In the above-described technical solution, optionally,

the number of the magnetic induction coils is even.

In the above-described technical solution, optionally,

the magnetic induction coil includes:

a drive plate;

the middle part of the fixed bracket is provided with a circular groove; and

the copper wire is wound in the groove;

the copper wire is connected with the driving plate and used for controlling the magnetic flux of the magnetic induction coil.

In the above technical solution, optionally, the method further includes:

the limiting piece is arranged at the other end of the cavity and is provided with a through hole; and

the damping base is arranged in the cavity and close to the pull rope encoder;

the first steel wire rope is inserted into the through hole and used for reciprocating in the through hole.

In the above technical solution, optionally, the method further includes:

the infrared correlation switch is positioned in the cavity and is arranged on the pull rope encoder;

wherein the infrared correlation switch is used for detecting the position of the sliding magnet block to send a return-to-zero signal.

In the above technical solution, optionally, the method further includes:

and the second gap is arranged between the adjacent magnetic induction coils and is the space distance of magnetic flux.

In the above-described technical solution, optionally,

the body is symmetrical to have a first smooth section and a second smooth section:

the sum of the length of the body and the length of the pull rope encoder is 195 mm;

the sum of the length of the pull rope encoder and the length of the first smooth section is 45 mm;

the length of the second smooth section is 25 mm;

the width of the second gap is 15 mm;

the width of the groove is 20 mm;

the length of the sliding magnet block was 60 mm.

In the above technical solution, optionally, the method further includes:

the display is connected with the single chip microcomputer;

and the power supply module is respectively connected with the singlechip, the pull rope encoder and the display and used for supplying power.

The above and other objects, advantages and features of the present application will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the present application will be described in detail hereinafter by way of illustration and not limitation with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

FIG. 1 is a block diagram of a linear electromagnetic resistance hand function training apparatus according to one embodiment of the present application;

FIG. 2 is a perspective view of a resistance assembly of the linear electromagnetic resistance hand function exercise device shown in FIG. 1;

FIG. 3 is a cross-sectional side view one of the resistance assembly of FIG. 2;

FIG. 4 is a cross-sectional side view II of the resistance assembly shown in FIG. 2;

FIG. 5 is a resistance value feedback plot for the resistance assembly shown in FIG. 2.

The labels in the figure are:

100-a resistance assembly; 101-a pull rope encoder; 102-a shock mount; 103-magnetic induction coil; 104-terminal; 105-infrared correlation switch; 106-sliding magnet block; 107-limiting piece; 108-a first steel cord; 109-a body; 110-a cavity; 111-a second steel cord; 112-a fixed support; 113-a groove; 114-a drive plate; 115-through holes; 116-a second void; 117 — first void; 118-a first smooth segment; 119-a second smooth segment;

200-a power supply module;

300-a display;

400-single chip microcomputer.

Detailed Description

The present application will now be described in further detail by way of specific examples with reference to the accompanying drawings. The following examples are intended to illustrate the present application but are not intended to limit the scope of the present application.

FIG. 1 is a block diagram of a linear electromagnetic resistance hand function training apparatus according to one embodiment of the present application; FIG. 2 is a perspective view of a resistance assembly of the linear electromagnetic resistance hand function exercise device shown in FIG. 1; FIG. 3 is a cross-sectional side view one of the resistance assembly of FIG. 2. The linear electromagnetic resistance hand function training device may generally include a control module, which may include a single-chip microcomputer 400, and a resistance assembly 400.

Specifically, resistance assembly 100 may generally include a body 109, a pull cord encoder 101, a sliding magnet block 106, a plurality of magnetic coils 103, and a first wire rope 108. Wherein, the body 109 has a cavity 110 inside, and both ends are open and designed for installing the pull rope encoder 101 and the spacing piece 107, and the body 9 is a hollow tube made of heat-resistant plastic material. The stay cord encoder 101 is installed at one end of the cavity 110 through threads or clamping, and a terminal 104 of the stay cord encoder 101 is connected with the single chip microcomputer 400 through a connecting wire and used for receiving and calculating a difference pulse value. The sliding magnet block 106 is located inside the cavity 110 and connected to the rope encoder 101 through a second wire rope 111, and the sliding magnet block 106 is a cylindrical permanent magnet and is disposed in the transverse direction. The diameter of the cavity 110 is larger than the diameter of the sliding magnet block 106 so that a first gap 117 is formed between the cavity 110 and the sliding magnet block 106 for the sliding magnet block 106 to reciprocate inside the cavity 110 without rubbing against the cavity 110. The plurality of magnetic induction coils 103 are embedded in the outer circumference of the body 109 and connected with the single chip microcomputer 400 through the driving plate 114. The first steel wire rope 108 is arranged inside the cavity 110, a first end of the first steel wire rope 108 is connected with the sliding magnet block 106 in a welding mode, and a second end of the first steel wire rope 108 extends out of the cavity 110 and is connected with a hand of a user, and the first steel wire rope can be connected with the hand through a device or can be directly pulled by the hand according to actual conditions. The displacement of the pull rope encoder 101 is fed back to the single chip microcomputer 400, and the single chip microcomputer 400 controls the magnetic flux of the electromagnetic coil 103 in real time, so that the magnetic field of the sliding magnet block 106 in the displacement distance is constant in resistance, and the effect of constant resistance in the pulling process is achieved. Simple equipment, convenient operation, high product yield, good quality and the like.

In this embodiment, the plurality of magnetic induction coils 103 are optionally even-numbered, having high current, electric resistance. Stable pressure, good heat dissipation and difficult damage.

Referring to FIG. 3, in one embodiment, the magnetic induction coil 103 may optionally include a drive plate 114, a fixed bracket 112, and a copper wire (not shown). The fixing bracket 112 is circular, a circular groove 113 is formed in the middle of the fixing bracket, and a copper wire is wound in the groove 113. The copper wire is welded with the driving plate 114, and the magnetic flux of the magnetic induction coil 103 is controlled by the single chip microcomputer 400. The driving board 114 is an existing conventional driving circuit board.

Further, the bracket 112 is made of heat-resistant plastic material, and has the effects of strong heat conductivity, non-magnetic conductivity and insulation.

Referring to fig. 3, in one embodiment, optionally, the position-limiting plate 107 is installed at the other end of the cavity 110 through a screw, and a through hole 115 is formed in the middle of the position-limiting plate 107. The second end of the first wire 108 passes through the through hole 115 and the user can pull on the first wire 108 to cause the sliding magnet block 106 to reciprocate within the cavity 110. Sliding magnet block 106 is prevented from sliding out of cavity 110 by the provision of retaining tabs 107.

In this embodiment, the limiting plate 107 is circular and is adapted to the cavity 110, and the material is the same.

Referring to fig. 3, in one embodiment, the damper base 102 is optionally disposed in the cavity 110 near the pull cord encoder 101, and the front end of the second wire rope 111 extends out of the middle of the damper base 102 and is welded to the sliding magnet block 106. By arranging the damper base 102, the magnet block 106 does not collide with the pull rope encoder 101 when moving backward, and the pull rope encoder 101 is effectively protected.

In this embodiment, the shock absorbing base 102 and the cavity 110 may be screwed or integrated.

Referring to fig. 3, in one embodiment, optionally, an ir-correlation switch 105, located in the cavity 110 and mounted to the pull-cord encoder 101, detects the position of the sliding magnet block 106 via the ir-correlation switch 105 to send a return-to-zero signal, which is sent to the mcu 400, and has the effect of notifying the mcu 400 of the ready state from the run state.

Referring to fig. 3, in one embodiment, a second gap 116, which is a spatial distance of magnetic flux, is optionally disposed between adjacent magnetic induction coils 103, which may also improve heat dissipation.

FIG. 4 is a cross-sectional side view two of the resistance assembly shown in FIG. 2. In one embodiment, optionally, the body 109 symmetrically has a first smooth segment 118 and a second smooth segment 119: the sum of the length of the body 109 and the length of the pull rope encoder 101 is 195 mm; the sum of the length of the pull rope encoder 101 and the length between the first smooth sections is 45 mm; the length of the second smooth section is 25 mm; the width of the second gap 116 is 15 mm; the width of the groove 113 is 20 mm; the length of the sliding magnet block 106 is 60 mm. The stroke distance is controlled during the pulling process, the collision of the sliding magnet block 106 with the front and the back is reduced, and uniform magnetic induction is generated between the whole coils.

Referring to fig. 1, in one embodiment, optionally, the display 300 is connected to the single chip microcomputer 400 through a connection line, and is used for real-time operation status, real-time displacement distance, adjustment of a selected training mode, adjustment of resistance, evaluation of a patient training index, and the like. The power supply module 200 is respectively connected with the single chip microcomputer 400, the pull rope encoder 101 and the display 300 through connecting wires for supplying power. The power supply module 200 is a finished product power supply module, and can generate stable voltage to drive the magnetic induction coil and supply power to each module of the single chip microcomputer 400.

As shown in fig. 5, different voltages were selected during testing, and the resistance values were measured by an electronic dynamometer as the sliding magnet slider 106 moved different distances, resulting in the resistance value feedback of fig. 5, from which it can be seen that the present application produces an extremely stable resistance source.

When in specific use:

1. a user pulls a first end of the first steel wire rope 108 by hand to drive the sliding magnet block 106 to reciprocate in the cavity;

2. the single chip microcomputer 400 controls the driving board 114 to electrify the magnetic induction coil 103, at the moment, an ampere force is generated between the magnetic induction coil 103 and the sliding magnet block 106 to generate resistance, so that the magnetic field of the sliding magnet block 106 in the displacement distance is constant in resistance, and the effect of constant resistance in the pulling process is realized. The single chip microcomputer 400 receives the difference pulse value of the pull rope encoder 101 and transmits the difference pulse value to the display 300 to be displayed, and a user can watch related data through the display 300.

Through the displacement feedback of the stay cord encoder 101, the magnetic flux of the magnetic induction coil 103 is controlled in real time, so that the magnetic field is constant in the displacement distance aiming at the resistance module, the effect of constant resistance in the pulling process is realized, the functions of the resistance source for rehabilitation treatment, such as a generation mode, scene interaction and the like are realized, and the advantages of simple equipment, convenience in operation, high product yield, good quality and the like are achieved. And the operation of linear magnetic resistance and the generation of shimming magnetic fields are matched with the magnetic flux between the sliding magnet block 106 and the magnetic induction coil 103 in real time, so that a multi-coil long-distance fixed force field is realized.

The working principle is as follows:

a uniform electromagnetic field is generated in the body 109 at a certain distance through the magnetic induction coil 113, so that the sliding magnet block 106 always receives a repulsive force in the opposite direction in the cavity 110, and a stable resistance source with adjustable size is formed by adjusting the driving voltage.

During use, the infrared correlation switch 105 is used for recognition, then the resistance size and the resistance mode are set for a trainer, the trainer obtains a pulled displacement value through the pull rope encoder 101 during pulling, and when the set displacement value is reached, the sliding magnet block 106 is released and returns to the original position, and the training process can be completed by reciprocating.

The equipment has the following advantages:

through having adopted this application electromagnetic resistance mode, not only adjustment resistance size that not only can be very easy accurate can monitor the current motion state of training person moreover. The single mode that the traditional spring and the weight are used as a resistance source is eliminated. The resistance component only considers the resistance movement in one direction, so that the structure of the component is greatly simplified, and the component has certain extensible development, the resistance distance can be increased by increasing the magnetic induction coil 113, and the negative resistance training applied to limb functions can be expanded; the cost is saved, the structure is simple, and the production cost is more favorable for batch production than that of a servo motor; in the movement process, the sliding magnet block 106 is easy to be in a suspension state, so that a certain first gap 117 is formed between the sliding magnet block 106 and the cavity 110, the operation sensitivity is greatly improved, the friction resistance between the sliding magnet block 106 and the cavity 110 in the movement process is reduced, the wear rate is greatly reduced, and the integral operation life of the equipment is prolonged; fourthly, the working reliability is strong, and the long-time practical process has the characteristics of fast heat dissipation, long service life and low maintenance rate.

It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which this application belongs.

In the description of the present application, 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 present application 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 application.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present application, "a plurality" means two or more unless specifically defined otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

The above description is only for the preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a straight line electromagnetic resistance hand function trainer which characterized in that includes:

a control module and a resistance assembly (100);

the control module comprises a single chip microcomputer (400);

a resistance assembly (100) comprising:

a body (109) having a cavity (110) therein;

the pull rope encoder (101) is arranged at one end of the cavity (110) and is connected with the single chip microcomputer (400);

a sliding magnet block (106) which is positioned in the cavity (110) and is connected with the pull rope encoder (101);

the magnetic induction coils (103) are constructed on the outer circumference of the body (109) and are connected with the single chip microcomputer (400); and

a first steel wire rope (108) arranged in the cavity (110), wherein the first end of the first steel wire rope is connected with the sliding magnet block (106), and the second end of the first steel wire rope extends out of the cavity (110) and is connected with the hand of a user;

when the user pulls the first steel wire rope (108) with hands, the sliding magnet block (106) is made to reciprocate in the cavity (110), and the single chip microcomputer (400) is used for controlling the magnetic flux of the magnetic induction coil (103), so that an ampere force is generated between the sliding magnet block (106) and the magnetic induction coil (103) to generate resistance.

2. The linear electromagnetic resistance hand function training device of claim 1, wherein:

the pull rope encoder (101) is connected to the sliding magnet block (106) through a second wire rope (111).

3. The linear electromagnetic resistance hand function training device of claim 1, wherein:

the diameter of the cavity (110) is larger than the diameter of the sliding magnet piece (106) so that a first gap (117) is formed between the cavity (110) and the sliding magnet piece (106).

4. The linear electromagnetic resistance hand function training device of claim 1, wherein:

the number of the magnetic induction coils (103) is even.

5. The linear electromagnetic resistance hand function training device of claim 1, wherein the magnetic induction coil (103) comprises:

a drive plate (114);

the middle part of the fixed bracket (112) is provided with a circular groove (113); and

a copper wire wound around the groove (113);

wherein the copper wire is connected with the driving plate (114) and used for controlling the magnetic flux of the magnetic induction coil (103).

6. The linear electromagnetic resistance hand function training device of claim 1, further comprising:

the limiting piece (107) is arranged at the other end of the cavity (110) and is provided with a through hole (115); and

a shock absorbing base (102) arranged in the cavity (110) and close to the pull rope encoder (101);

wherein the first steel wire rope (108) is inserted into the through hole (115) and used for reciprocating in the through hole (115).

7. The linear electromagnetic resistance hand function training device of claim 1, further comprising:

an infrared correlation switch (105) which is positioned in the cavity (110) and is mounted on the pull rope encoder (101);

wherein the infrared correlation switch (105) is used for detecting the position of the sliding magnet block (106) to send a return-to-zero signal.

8. The linear electromagnetic resistance hand function training device of claim 5, further comprising:

and a second air gap (116) which is arranged between the adjacent magnetic induction coils (103) and is a space distance of magnetic flux.

9. The linear electromagnetic resistance hand function training device of claim 8, wherein:

the body (109) is symmetrically provided with a first smooth section (118) and a second smooth section (119);

the sum of the length of the body (109) and the length of the pull rope encoder (101) is 195 mm;

the sum of the length of the pull rope encoder (101) and the length of the first smooth section is 45 mm;

the length of the second smooth section is 25 mm;

the width of the second gap (116) is 15 mm;

the width of the groove (113) is 20 mm;

the length of the sliding magnet block (106) is 60 mm.

10. The linear electromagnetic resistance hand function training device of any one of claims 1-9, further comprising:

the display (300) is connected with the single chip microcomputer (400);

and the power supply module (200) is respectively connected with the single chip microcomputer (400), the pull rope encoder (101) and the display (300) and is used for supplying power.