CN210811115U - Chair for measuring force of leg muscles - Google Patents
Chair for measuring force of leg muscles Download PDFInfo
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- CN210811115U CN210811115U CN201920590934.3U CN201920590934U CN210811115U CN 210811115 U CN210811115 U CN 210811115U CN 201920590934 U CN201920590934 U CN 201920590934U CN 210811115 U CN210811115 U CN 210811115U
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Abstract
The utility model relates to a dynamometry seat for shank muscle belongs to medical instrument technical field. The force measuring chair comprises a chair body and a pedaling force measuring device, wherein the pedaling force measuring device comprises two pedaling force measuring components, the two pedaling force measuring components are fixed on the chair body side by side, each pedaling force measuring component comprises a supporting piece, a dynamometer and a pedaling plate, the supporting pieces are fixed with chair legs of the chair body, the dynamometer is obliquely arranged on the supporting pieces, and the pedaling plates are fixed with the movable ends of the dynamometers and are used for being matched with feet. The dynamometry seat mainly used measures old person's shank muscle degree of aging, by the tester sit on the seat body, the foot is pedaled on the pedal board, the pedal board promotes the expansion end motion of dynamometer, thereby make the dynamometer accurate measurement to pedal the size of power, and then muscle such as quantification research thigh quadriceps muscle, measuring method is simple and convenient, measuring result is directly perceived, judge old person's shank muscle degree of aging according to measuring result, provide the foundation for subsequent research or treatment etc..
Description
Technical Field
The utility model belongs to the technical field of medical instrument, concretely relates to a dynamometry seat for shank muscle.
Background
Muscles are primarily composed of muscle tissue. Muscle tissue is composed of muscle cells (muscle fibers) and connective tissue. Since the shape of a muscle cell is elongated and fibrous, the muscle cell is generally called a muscle fiber. The cells are rich in myofilament protein, and thin myofilaments and thick myofilaments are formed. The lower limb muscles are divided into hip muscles, thigh muscles, calf muscles and foot muscles according to the location.
In the growth process of people, when the people grow to a certain age, the aging phenomenon of leg muscles can occur along with the growth of the age, particularly, the aging of the leg muscles of the old people is more obvious, and the aging degree of the leg muscles is an important index for judging the health state of the old people.
In the measurement of the prior art, the whole leg can only be measured in a general way, and the muscles at different parts of the leg are difficult to be accurately researched.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an aim at provides a dynamometry seat for the human pedaling force size of test can carry out quantitative measurement to quadriceps femoris etc. and measuring method is simple and convenient, measuring result is comparatively directly perceived.
The embodiment of the utility model is realized like this:
the embodiment of the utility model provides a dynamometry seat, the dynamometry seat includes seat body and pedalling force ergograph, pedalling force ergograph includes two pedalling force dynamometry subassemblies, two pedalling force dynamometry subassemblies are fixed in side by side the seat body, pedalling force dynamometry subassembly includes support piece, dynamometer and pedal plate, support piece with the chair leg of seat body is fixed, the dynamometer slope set up in on the support piece, the pedal plate with the expansion end of dynamometer is fixed and be used for cooperating with the foot, the pedal plate with the dynamometer is perpendicular just the pedal face orientation of pedal plate the seat of seat body.
As an alternative to the above embodiment, the supporting element includes a fixing frame and a sleeve, the fixing frame is fixed to the seat body, the sleeve is slidably sleeved on the fixing frame, the sleeve and the fixing frame are fixed by a first locking element, and the dynamometer is fixed above the sleeve.
As an alternative of the above embodiment, the bottom of the dynamometer is rotatably connected to the sleeve, the support member further includes an angle adjusting member, the angle adjusting member includes an adjusting rod, an adjusting slide rail and an adjusting slide block, the adjusting slide rail is fixed on the sleeve, one end of the adjusting rod is hinged to the dynamometer, the other end of the adjusting rod is hinged to the adjusting slide block, the adjusting slide block is slidably disposed on the adjusting slide rail, and the adjusting slide block is fixed to the adjusting slide rail through a second locking member.
As an alternative to the above embodiment, the seat body has a seat back, a seat surface and four support legs distributed in a rectangular shape, the seat back is located above the seat surface, the support legs are located below the seat surface, and two support legs on the same side of the seat body are a leg group;
the fixing frame is a strip-shaped part and has a T-shaped section, the fixing frame is fixed on the inner side of the leg group, and a T-shaped groove matched with the fixing frame is formed in the side wall of the sleeve;
the support member has a storage state in which the sleeve is stored between the two leg groups and located right below the seat surface, and an operating state in which the sleeve extends out from right below the seat surface.
As an alternative to the above embodiment, the bottom of the casing is provided with a state transition assembly;
the state conversion assembly comprises a pedal piece and two moving pieces, a vertical lifting slide rail is arranged on one side of the sleeve, the pedal piece is in slidable fit with the lifting slide rail, a pedal face is arranged on the pedal piece, and a locking piece used for fixing the pedal piece and the lifting slide rail is arranged on the pedal piece;
the movable parts comprise connecting rods, wheel carriers and idler wheels, the wheel carriers are hinged to the bottom of the sleeve, the wheel carriers of the two movable parts are distributed in an inverted V shape, the idler wheels are rotatably arranged at the bottom ends of the wheel carriers and are used for being in contact with the ground, one end of each connecting rod is fixed with the wheel carriers, and the other end of each connecting rod is hinged to the pedal part;
the pedal piece has lower dead center and top dead center for the lift slide rail, state conversion subassembly has the pedal piece is in the top dead center, the gyro wheel breaks away from ground and the first state on seat body contact ground to and the pedal piece is in lower dead center, the gyro wheel contacts ground and the second state on seat body breaks away from ground.
As an alternative of the above embodiment, a plurality of first wedge-shaped blocks are vertically arranged on the lifting slide rail;
the locking piece penetrates through the pedal piece and is matched with the lifting slide rail, the locking piece is slidably arranged on the pedal piece in a penetrating mode, one end of the locking piece is provided with a second wedge-shaped block matched with the first wedge-shaped block, the other end of the locking piece is provided with a pull ring, a return spring is arranged between the locking piece and the pedal piece, and the return spring enables the locking piece to have a tendency of moving towards the first wedge-shaped block;
the bottom surface of the first wedge-shaped block is a first horizontal surface, the top surface of the first wedge-shaped block is a first inclined surface, the first horizontal surface is intersected with the first inclined surface, the bottom surface of the second wedge-shaped block is a second inclined surface, and the second horizontal surface is intersected with the second inclined surface.
As an alternative to the above embodiment, the pedaling force measuring assembly further comprises a check member, the check member comprising a cylinder, a check piston and a connecting rod;
the check piston is slidably arranged in the cylinder, one end of the connecting rod is fixedly connected with the check piston, the other end of the connecting rod extends out of the cylinder and is fixed with the pedal plate, the extending direction of the cylinder is consistent with the extending direction of the dynamometer, the moving direction of the check piston is consistent with the moving direction of the pedal plate, and the cylinder is fixed with the dynamometer;
the check piston comprises a piston frame and a plurality of check valves, the piston frame is provided with a plurality of piston holes, the check valves are embedded in the piston holes and enable gas to flow in a one-way mode, the check valves are divided into a first check valve and a second check valve, and the flow directions of the gas allowed by the first check valve and the second check valve are opposite;
the cylinder is divided by the check piston into a first chamber and a second chamber, the first chamber being closer to the footrest than the second chamber, the first one-way valve allowing gas to flow from the first chamber into the second chamber and be blocked in the opposite direction, the second one-way valve allowing gas to flow from the second chamber into the first chamber and be blocked in the opposite direction;
the gas flows from the first chamber into the second chamber at a first velocity and from the second chamber into the first chamber at a second velocity, the second velocity being greater than the first velocity.
As an alternative to the above embodiment, the second speed is four to six times the first speed.
The utility model has the advantages that:
the utility model provides a dynamometry seat, mainly used measures old person's shank muscle ageing degree, sit on the seat body by the tester, the foot is pedaled on the pedal board, promote the pedal board hard through the foot, the activity end motion of pedal board promotion dynamometer, thereby make the dynamometer accurate measurement to step out the size of power, and then muscle such as quantification research thigh quadriceps muscle, measuring method is simple and convenient, measuring result is directly perceived, obtain old person's shank muscle ageing degree according to measuring result, judge old person's health, provide the foundation for subsequent research or treatment etc..
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and 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 these drawings without creative efforts. The above and other objects, features and advantages of the present invention will become more apparent from the accompanying drawings. Like reference numerals refer to like parts throughout the drawings. The drawings are not intended to be drawn to scale in actual dimensions, emphasis instead being placed upon illustrating the principles of the invention.
Figure 1 shows a schematic structural view of a force measuring seat according to a first embodiment of the present invention;
FIG. 2 shows one of the views of the load cell seat;
figure 3 shows a schematic structural view of a force measuring seat according to a second embodiment of the present invention;
FIG. 4 shows a partial enlarged schematic view of FIG. 3;
FIG. 5 shows a schematic view of a condition conversion assembly of the load cell seat;
FIG. 6 is a schematic view showing the engagement relationship between the foot pedal, the movable member and the lifting slide rail;
FIG. 7 shows a schematic view of a check;
fig. 8 shows a schematic illustration of the construction of the check piston.
Reference numerals:
10-a dynamometric seat;
11-a seat body; 12-pedal force measuring device;
110-chair back; 111-a seat surface; 112-a leg; 120-pedaling force measuring component; 121-a support; 122-a force gauge; 123-pedal plate; 124-a fixing frame; 125-cannula; 126-a first locking member; 130-an angle adjustment; 131-an adjusting rod; 132-adjusting the slide rail; 133-adjusting the slide block; 134-a second locking element; 140-a state transition component; 141-a footrest member; 142-a movable member; 143-lifting slide rail; 144-a lock; 145-connecting rod; 146-a wheel carrier; 147-rollers; 148-a first wedge; 149-a second wedge block; 150-a tab; 151-return spring; 160-no return; 161-cylinder; 162-check piston; 163-connecting rod; 164-a piston frame; 165-one-way valve; 166 — a first chamber; 167-a second chamber.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
First embodiment
Referring to fig. 1 and 2, an embodiment of the present invention provides a force measuring seat 10, wherein the force measuring seat 10 is used for measuring a pedaling force of a human body, and quantitatively researching muscles such as quadriceps femoris.
The aging degree of the leg muscles of the old is judged according to the pedaling force, and then the health state of the old is judged. Older adults are older than 60 years of age, although it is entirely possible that a load cell chair is used to measure the degree of aging of the muscles of the legs of middle aged adults under 60 years of age.
Specifically, the force measuring seat 10 includes a seat body 11 and a pedaling force measuring device 12, the seat body 11 is used for supporting a human body, and the pedaling force measuring device 12 is used for measuring a pedaling force.
The structure of the seat body 11 can adopt the prior art, in this embodiment, the seat body 11 has a seat back 110, a seat surface 111 and four legs 112, the seat back 110 is located above the seat surface 111, the four legs 112 are distributed in a rectangular shape, and the legs 112 are located below the seat surface 111. Of course, the seat body 11 may also include an armrest or the like.
The pedal force dynamometer 12 has the following specific structure: the pedal force measuring device 12 includes two pedal force measuring assemblies 120.
Two pedaling force measuring assemblies 120 are fixed to the seat body 11 side by side, and each of the pedaling force measuring assemblies 120 corresponds to one leg for measuring the pedaling force of one of the legs.
The pedaling force measuring assembly 120 comprises a support 121, a load cell 122 and a pedal plate 123.
The supporting member 121 is fixed to the legs of the seat body 11, and the structure of the supporting member 121 is not limited, and may be, for example, a rod-shaped structure, a square tube structure, a block-shaped structure, a plate-shaped structure, or the like, as long as deformation does not occur during the pedaling force test.
The dynamometer 122 may adopt a structure in the prior art, for example, a spring type pressure measurement structure and a cylinder 161 type test structure, in this embodiment, the dynamometer 122 includes a cylinder, a slider, a spring, a slide rod, etc., the slider is slidably disposed in the cylinder, the spring is located in the cylinder, two ends of the spring respectively abut against the cylinder and the slider, one end of the slide rod is connected with the slider, and the other end of the slide rod is connected with the pedal 123.
The pedal plate 123 is fixed to the movable end of the dynamometer 122 for fitting with the foot, where the movable end is an end of the dynamometer 122 capable of moving, such as an end of the connecting rod 145, and when the pedal plate 123 is stressed, the movable end can move along with the pedal plate 123, so as to achieve the purpose of measuring the pedaling force.
The footrest 123 is perpendicular to the dynamometer 122 and the footrest surface of the footrest 123 faces the seat surface 111 of the seat body 11.
The pedal plate 123 is inclined, and when a tested person sits on the seat body 11, the sole of the foot is inclined and is approximately the same as the inclination angle of the pedal plate 123, so that the sufficient contact between the sole of the foot and the pedal plate 123 can be ensured, and the measurement is more accurate.
Second embodiment
Referring to FIG. 3, a second embodiment of the present invention provides a load cell seat 10, which is a further improvement over the first embodiment.
The height of the tested person can be different, namely when the tested person sits on the force measuring seat 10, the extension amplitude of the leg is different, so that the bending degree of the leg is different during measurement, and in the process of measuring the pedaling force, the bending angle of the leg needs to be controlled within a certain range, so that the measurement is more accurate.
In this embodiment, the supporting element 121 includes a fixing frame 124 and a sleeve 125, the fixing frame 124 is fixed on the seat body 11, the sleeve 125 is slidably sleeved on the fixing frame 124, the sleeve 125 and the fixing frame 124 are fixed by a first locking element 126, and the dynamometer 122 is fixed above the sleeve 125.
The sleeve 125 can slide along the fixing frame 124, and then the position of the pedal plate 123 is adjusted, so that the force measuring seat 10 can be adjusted according to different heights of tested persons, the bending angle of the leg is controlled within a reasonable range, the measurement is more accurate, and the application range is wider.
The first locking member 126 is used to fix the sleeve 125 to the fixing frame 124, i.e., the locking member prevents the sleeve 125 from sliding along the fixing frame 124, and the locking member releases the sleeve 125 to slide along the fixing frame 124. The first locking member 126 is configured according to the prior art, and may be, for example, a locking bolt, and in particular, the first locking member 126 is a bolt, and the bolt passes through a sidewall of the sleeve 125 and abuts against the fixing frame 124 to perform a locking function, and when the bolt is disengaged from the fixing frame 124, the sleeve 125 can slide along the fixing frame 124. Of course other configurations of the first locking member 126 are fully possible.
When the position of the pedal 123 changes, the included angle between the pedal 123 and the ground should also change correspondingly, so as to make the sole of the tested person fully contact with the pedal 123, in a simple manner, the farther the pedal 123 is from the seat body 11, the larger the inclination angle of the pedal 123 should be, and conversely, the closer the pedal 123 is to the seat body 11, the smaller the inclination angle of the pedal 123 should be.
The embodiment provides the following scheme, and the following effects can be achieved: the bottom end of the load cell 122 is rotatably connected to the sleeve 125.
Referring to fig. 4, the supporting member 121 further includes an angle adjusting member 130, the angle adjusting member 130 is used for fixing the inclination angle of the dynamometer 122, and the inclination angle of the footrest 123 is fixed when the angle of the dynamometer 122 is fixed.
Specifically, the angle adjusting member 130 includes an adjusting lever 131, an adjusting slide 132, and an adjusting slider 133.
The adjusting slide rail 132 is fixed above the sleeve 125, one end of the adjusting rod 131 is hinged to the load cell 122, the other end of the adjusting rod 131 is hinged to the adjusting slider 133, the adjusting slider 133 is slidably disposed on the adjusting slide rail 132, and the adjusting slider 133 and the adjusting slide rail 132 are fixed through the second locking piece 134.
The adjustment slide 133 can be moved along the adjustment rail 132, similarly to a triangle with two fixed sides and one variable side, by controlling the position of the adjustment slide 133 to determine the inclination angle of the load cell 122, which is then fixed using the second locking element 134.
The second locking member 134 is used to fix the adjusting slider 133 and the adjusting slide rail 132, i.e. the second locking member can prevent the adjusting slider 133 from sliding along the adjusting slide rail 132 when locked, and the second locking member can prevent the adjusting slider 133 from sliding along the adjusting slide rail 132 when unlocked. The second locking member 134 can be a locking bolt, and in particular, the second locking member 134 is a bolt, and the bolt passes through a side wall of the adjusting slide 133 and abuts against the adjusting slide 132 to perform a locking function, and when the bolt is disengaged from the adjusting slide 132, the adjusting slide 133 can slide along the fixing frame 124. Of course other configurations of the first locking member 126 are fully possible.
Since the pedaling force measuring device 12 is located in front of the seat body 11, the occupied area of the load cell seat 10 is large and is inconvenient to store, and in the present embodiment, a structure is provided that facilitates storage of the load cell seat 10.
The two legs 112 on the same side of the seat body 11 are in one leg group, for example, the two legs 112 on the left side of the seat body 11 are in one leg group, and the two legs 112 on the right side of the seat body 11 are in another leg group.
The fixing frame 124 is a strip-shaped member and has a T-shaped cross section, the fixing frame 124 is fixed to the inner side of the leg set, and a T-shaped groove matched with the fixing frame 124 is formed on the side wall of the sleeve 125.
The support member 121 has a storage state in which the sleeve 125 is stored between the two leg groups and located directly below the seat surface 111, and an operating state in which the sleeve 125 projects from directly below the seat surface 111.
When the support member 121 is in the storage state, the sleeve 125, the dynamometer 122, and the footrest 123 are located below the seat surface 111, and the dynamometer seat 10 can be used as a common seat to facilitate storage.
Further, a state transition assembly 140 is provided at the bottom of the casing 125.
Referring to fig. 5, the state conversion assembly 140 includes a pedal 141 and two movable members 142, a vertical lifting slide rail 143 is disposed on one side of the sleeve 125, the pedal 141 is slidably engaged with the lifting slide rail 143, a pedal surface is disposed on the pedal 141, and a locking member 144 for fixing the pedal 141 and the lifting slide rail 143 is disposed on the pedal 141.
The movable member 142 includes a connecting rod 145, a wheel frame 146 and a roller 147, the wheel frame 146 is hinged to the bottom of the casing 125, the roller 147 is rotatably disposed at the bottom end of the wheel frame 146 and is used for contacting with the ground, one end of the connecting rod 145 is fixed to the wheel frame 146, and the other end of the connecting rod 145 is hinged to the pedal member 141.
The pedal 141 has a bottom dead center and a top dead center with respect to the lifting slide rail 143, and correspondingly, the state conversion assembly 140 has two states, i.e., a first state and a second state.
When the state conversion assembly 140 is in the first state, the pedal 141 is at the top dead center, the roller 147 is separated from the ground and the seat body 11 contacts the ground. When the state conversion assembly 140 is in the second state, the pedal 141 is at the bottom dead center, the roller 147 contacts the ground, and the seat body 11 is separated from the ground.
Because the pedaling force measurer is mounted on the seat body 11, the weight is increased more, the movement of the force measuring seat 10 is more strenuous, the state conversion assembly 140 can lift or put down the seat body 11, when the state conversion assembly 140 is in the first state, the seat body 11 contacts the ground, the pedaling force measurement of the force measuring seat 10 can be normally carried out, when the state conversion assembly 140 is in the second state, the rollers 147 contact the ground, the force measuring seat 10 can be pushed to advance, and the transfer is more convenient.
Referring to fig. 6, a plurality of first wedge-shaped blocks 148 are vertically disposed on the lifting slide rail 143, a bottom surface of each first wedge-shaped block 148 is a first horizontal surface, a top surface of each first wedge-shaped block 148 is a first inclined surface, and the first horizontal surface intersects with the first inclined surface.
The locking member 144 penetrates through the pedal member 141 and is matched with the lifting slide rail 143, the locking member 144 slidably penetrates through the pedal member 141, one end of the locking member 144 is provided with a second wedge-shaped block 149 matched with the first wedge-shaped block 148, the bottom surface of the second wedge-shaped block 149 is a second inclined surface, and the second horizontal surface is intersected with the second inclined surface.
The first wedge block 148 and the second wedge block 149 can enable the state transition component 140 to conveniently switch between various states.
The other end of the locking member 144 is provided with a pull ring 150, a return spring 151 is arranged between the locking member 144 and the pedal member 141, and the return spring 151 enables the locking member 144 to have a tendency to move towards the first wedge block 148;
the wheel frames 146 of the two movable members 142 are distributed in an inverted splayed shape and can be seen as an isosceles trapezoid, and the structure enables the roller 147 to always contact the ground to support the sleeve 125.
Specifically, when the state conversion assembly 140 is in the second state, the roller 147 is separated from the ground, and at this time, due to the influence of the self-gravity of the roller 147 and the like, the roller has a tendency of moving downward, so that the wheel frame 146 is turned downward, the pedal 141 can slide along the lifting slide rail 143 until the roller 147 contacts the ground, at this time, the first wedge-shaped block 148 and the second wedge-shaped block 149 are fixed in a matching manner, and the movable member 142 supports the sleeve, thereby avoiding the deformation of the roller or the fixed frame 124 caused by an excessive pedaling force.
When measuring the pedaling force, the health condition of the tested person is different, and there will be acting force and reacting force during the measurement, and the measured pedaling force is the maximum pedaling force of the tested person, and if the tested person has insufficient body force during the test, the pedal plate 123 will be rebounded, and the tested person will be injured.
Referring to fig. 7, the pedaling force measuring assembly 120 further comprises a check member 160, and the check member 160 comprises a cylinder 161, a check piston 162 and a connecting rod 163.
The check piston 162 is slidably disposed in the cylinder 161, one end of the connecting rod 163 is fixedly connected to the check piston 162, the other end of the connecting rod 163 extends out of the cylinder 161 and is fixed to the pedal plate 123, the extending direction of the cylinder 161 is the same as the extending direction of the dynamometer 122, the moving direction of the check piston 162 is the same as the moving direction of the pedal plate 123, and the cylinder 161 is fixed to the dynamometer 122.
Referring to fig. 8, the check piston 162 includes a piston frame 164 and a plurality of check valves 165, the piston frame 164 has a plurality of piston holes, the check valves 165 are embedded in the piston holes and allow gas to flow in one direction, the check valves 165 are divided into a first check valve 165 and a second check valve 165, and the flow directions of the gas allowed by the first check valve 165 and the second check valve 165 are opposite.
The cylinder 161 is divided into a first chamber 166 and a second chamber 167 by the check piston 162, the first chamber 166 is closer to the footrest 123 than the second chamber 167, the first check valve 165 allows the gas to flow from the first chamber 166 into the second chamber 167 and is blocked in the reverse direction, and the second check valve 165 allows the gas to flow from the second chamber 167 into the first chamber 166 and is blocked in the reverse direction.
The gas flows from the first chamber 166 into the second chamber 167 at a first velocity, and the gas flows from the second chamber 167 into the first chamber 166 at a second velocity, the second velocity being greater than the first velocity.
As an alternative to the above embodiment, the second speed is four to six times the first speed.
When the pedaling force is measured, the influence of the flowing of the gas is small, the influence on the measuring result is small, the pedal plate 123 needs to be restored to the original position in the measuring process or after the measurement is completed, at the moment, the moving speed of the movement is obviously reduced, the injury to the tested person caused by the counterforce of the pedal plate 123 to the tested person can be reduced, and the damage to the device caused by the quick rebound of the pedal plate 123 can be prevented.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The force measuring chair for the leg muscles is characterized by comprising a chair body and a pedaling force measuring device, wherein the pedaling force measuring device comprises two pedaling force measuring components which are fixed on the chair body side by side, each pedaling force measuring component comprises a support piece, a dynamometer and a pedaling plate, the support piece is fixed with a chair leg of the chair body, the dynamometer is obliquely arranged on the support piece, the pedaling plate is fixed with the movable end of the dynamometer and used for being matched with a foot, and the pedaling plate is perpendicular to the dynamometer and faces the chair surface of the chair body.
2. A dynamometric chair for leg muscles as claimed in claim 1, wherein the support member comprises a mount and a sleeve, the mount is fixed to the chair body, the sleeve is slidably sleeved on the mount, the sleeve and the mount are fixed by a first locking member, and the dynamometer is fixed above the sleeve.
3. The force measuring chair for leg muscles according to claim 2, wherein the bottom end of the force measuring gauge is rotatably connected to the sleeve, the support member further comprises an angle adjusting member, the angle adjusting member comprises an adjusting rod, an adjusting slide rail and an adjusting slide block, the adjusting slide rail is fixed above the sleeve, one end of the adjusting rod is hinged to the force measuring gauge, the other end of the adjusting rod is hinged to the adjusting slide block, the adjusting slide block is slidably disposed on the adjusting slide rail, and the adjusting slide block is fixed to the adjusting slide rail through a second locking member.
4. A dynamometric seat for leg muscles as recited in claim 2, wherein said seat body has a seat back, a seat surface, and four legs in a rectangular arrangement, said seat back being positioned above said seat surface and said legs being positioned below said seat surface, two of said legs on a same side of said seat body being in a leg group;
the fixing frame is a strip-shaped part and has a T-shaped section, the fixing frame is fixed on the inner side of the leg group, and a T-shaped groove matched with the fixing frame is formed in the side wall of the sleeve;
the support member has a storage state in which the sleeve is stored between the two leg groups and located right below the seat surface, and an operating state in which the sleeve extends out from right below the seat surface.
5. The dynamometric seat for leg muscles of claim 4, wherein a bottom of the sleeve is provided with a state conversion assembly;
the state conversion assembly comprises a pedal piece and two moving pieces, a vertical lifting slide rail is arranged on one side of the sleeve, the pedal piece is in slidable fit with the lifting slide rail, a pedal face is arranged on the pedal piece, and a locking piece used for fixing the pedal piece and the lifting slide rail is arranged on the pedal piece;
the movable parts comprise connecting rods, wheel carriers and idler wheels, the wheel carriers are hinged to the bottom of the sleeve, the wheel carriers of the two movable parts are distributed in an inverted V shape, the idler wheels are rotatably arranged at the bottom ends of the wheel carriers and are used for being in contact with the ground, one end of each connecting rod is fixed with the wheel carriers, and the other end of each connecting rod is hinged to the pedal part;
the pedal piece has lower dead center and top dead center for the lift slide rail, state conversion subassembly has the pedal piece is in the top dead center, the gyro wheel breaks away from ground and the first state on seat body contact ground to and the pedal piece is in lower dead center, the gyro wheel contacts ground and the second state on seat body breaks away from ground.
6. The dynamometric seat for leg muscles of claim 5, wherein a plurality of first wedge-shaped blocks are vertically disposed on the lifting slide;
the locking piece penetrates through the pedal piece and is matched with the lifting slide rail, the locking piece is slidably arranged on the pedal piece in a penetrating mode, one end of the locking piece is provided with a second wedge-shaped block matched with the first wedge-shaped block, the other end of the locking piece is provided with a pull ring, a return spring is arranged between the locking piece and the pedal piece, and the return spring enables the locking piece to have a tendency of moving towards the first wedge-shaped block;
the bottom surface of the first wedge-shaped block is a first horizontal surface, the top surface of the first wedge-shaped block is a first inclined surface, the first horizontal surface is intersected with the first inclined surface, the bottom surface of the second wedge-shaped block is a second horizontal surface, the bottom surface of the second wedge-shaped block is a second inclined surface, and the second horizontal surface is intersected with the second inclined surface.
7. The dynamometric seat for leg muscles of claim 2, wherein the pedaling force dynamometric assembly further comprises a check comprising a cylinder, a check piston, and a connecting rod;
the check piston is slidably arranged in the cylinder, one end of the connecting rod is fixedly connected with the check piston, the other end of the connecting rod extends out of the cylinder and is fixed with the pedal plate, the extending direction of the cylinder is consistent with the extending direction of the dynamometer, the moving direction of the check piston is consistent with the moving direction of the pedal plate, and the cylinder is fixed with the dynamometer;
the check piston comprises a piston frame and a plurality of check valves, the piston frame is provided with a plurality of piston holes, the check valves are embedded in the piston holes and enable gas to flow in a one-way mode, the check valves are divided into a first check valve and a second check valve, and the flow directions of the gas allowed by the first check valve and the second check valve are opposite;
the cylinder is divided by the check piston into a first chamber and a second chamber, the first chamber being closer to the footrest than the second chamber, the first one-way valve allowing gas to flow from the first chamber into the second chamber and be blocked in the opposite direction, the second one-way valve allowing gas to flow from the second chamber into the first chamber and be blocked in the opposite direction;
the gas flows from the first chamber into the second chamber at a first velocity and from the second chamber into the first chamber at a second velocity, the second velocity being greater than the first velocity.
8. The dynamometric seat for leg muscles of claim 7, wherein the second velocity is four to six times the first velocity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110327062A (en) * | 2019-04-26 | 2019-10-15 | 四川大学 | One kind being used for leg muscle dynamometry seat |
| CN112007328A (en) * | 2020-09-08 | 2020-12-01 | 陈春领 | Safe shank lifting machine |
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2019
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110327062A (en) * | 2019-04-26 | 2019-10-15 | 四川大学 | One kind being used for leg muscle dynamometry seat |
| CN110327062B (en) * | 2019-04-26 | 2023-12-19 | 四川大学 | Be used for shank muscle dynamometry seat |
| CN112007328A (en) * | 2020-09-08 | 2020-12-01 | 陈春领 | Safe shank lifting machine |
| CN112007328B (en) * | 2020-09-08 | 2021-06-15 | 陈春领 | Safe shank lifting machine |
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