CN113521656A - Stretching apparatus before motion - Google Patents
Stretching apparatus before motion Download PDFInfo
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- CN113521656A CN113521656A CN202110805247.0A CN202110805247A CN113521656A CN 113521656 A CN113521656 A CN 113521656A CN 202110805247 A CN202110805247 A CN 202110805247A CN 113521656 A CN113521656 A CN 113521656A
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B23/00—Exercising apparatus specially adapted for particular parts of the body
- A63B23/035—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously
- A63B23/03516—For both arms together or both legs together; Aspects related to the co-ordination between right and left side limbs of a user
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B23/00—Exercising apparatus specially adapted for particular parts of the body
- A63B23/035—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously
- A63B23/04—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for lower limbs
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/08—Body-protectors for players or sportsmen, i.e. body-protecting accessories affording protection of body parts against blows or collisions
- A63B71/12—Body-protectors for players or sportsmen, i.e. body-protecting accessories affording protection of body parts against blows or collisions for the body or the legs, e.g. for the shoulders
- A63B71/1225—Body-protectors for players or sportsmen, i.e. body-protecting accessories affording protection of body parts against blows or collisions for the body or the legs, e.g. for the shoulders for the legs, e.g. thighs, knees, ankles, feet
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Rehabilitation Tools (AREA)
Abstract
The invention belongs to the technical field of sports fitness equipment, and particularly relates to a stretching apparatus before sports, which comprises a horizontal bottom plate, wherein a support is fixedly arranged on the upper surface of the bottom plate, and a horizontal bearing plate is fixedly arranged at the top of the support. Two rotating mechanisms are installed on the end face of one side of the bearing plate, and a positioning mechanism is installed on the end face of the bearing plate. The upper surface of the bottom plate is provided with a buffer mechanism. When the leg stretching device is used for stretching the legs, the legs are ensured to be in a stretched straight state all the time, and one leg is stretched while the other leg is in a horizontal stretched straight state, so that the stretching effect is ensured. The invention avoids ligament damage caused by lifting the legs too high and avoids ligament damage caused by too fast speed in the process of putting down the legs.
Description
Technical Field
The invention belongs to the technical field of sports fitness equipment, and particularly relates to a stretching instrument before sports.
Background
Stretching is a body-building method, and stretching before movement can make the cooperation between ligament muscle and joints softer, and reduce the possibility of injury during movement. The stretching comprises active stretching and passive stretching, wherein the active stretching refers to the action which is mainly kept on a specific position by virtue of the force for contracting the muscle, and other external forces are not used, so that the flexibility of the action and the force for contracting the muscle can be increased. Passive stretching is a slow, relaxing stretching that uses the body weight or apparatus to hold the limb in a certain extended position, and may also serve to reduce nerve and muscle excitability. Various stretching instruments are usually required to be matched when stretching.
When the legs are stretched, a human body is usually in a lying posture, then one leg is in a horizontal stretched state, and the other leg is lifted upwards in the stretched state to play a role in stretching ligaments. The following problems exist when the leg is stretched by adopting a stretching instrument at present: (1) the legs are difficult to be ensured to be in a stretched straight state all the time, and when one leg is stretched, the other leg cannot be kept in a horizontal state, so that the stretching effect is influenced; (2) the angle for lifting the leg is difficult to control accurately, the action speed for putting down the leg is difficult to control, and the ligament is easy to be damaged due to too high speed.
Disclosure of Invention
The technical problem to be solved is as follows: the invention provides a stretching apparatus before exercise, aiming at solving the following problems when the stretching apparatus is used for stretching legs: (1) the legs are difficult to be ensured to be in a stretched straight state all the time, and when one leg is stretched, the other leg cannot be kept in a horizontal state, so that the stretching effect is influenced; (2) the angle for lifting the leg is difficult to control accurately, the action speed for putting down the leg is difficult to control, and the ligament is easy to be damaged due to too high speed.
The technical scheme is as follows: in order to solve the technical problems, the invention adopts the following technical scheme: a stretching apparatus before exercise comprises a horizontal bottom plate, a support is fixedly arranged on the upper surface of the bottom plate, and a horizontal bearing plate is fixedly arranged at the top of the support. Two rotating mechanisms are installed on the end face of one side of the bearing plate and comprise two bearing brackets fixedly installed on the bearing plate, a horizontal shaft is installed between the two bearing brackets in a rotating mode, and a strip-shaped plate is fixedly sleeved on the horizontal shaft. One end of the horizontal shaft is sleeved with a circular ring, a convex block is fixedly arranged on the outer circumferential surface of the circular ring, and a positioning mechanism matched with the convex block is arranged on the end surface of the bearing plate.
The upper surface of the strip-shaped plate is provided with a first Contraband-shaped frame with a downward opening and a first 21274, the horizontal section of the strip-shaped frame is vertically provided with a second Contraband-shaped frame with a downward opening and a second 21274, and the end part of the vertical section of the strip-shaped frame is fixedly provided with a limiting plate. The first-type linear guide rail device comprises a first-type linear guide rail, wherein a moving block is fixedly mounted on the outer side wall of the vertical section of the shaped frame, and a first lead screw penetrating through the moving block is rotatably mounted on the upper surface of the strip-shaped plate through a lead screw bracket. The top surface of the horizontal section of the first lifting 21274is rotatably provided with a second lead screw which penetrates through the horizontal section of the second lifting 21274.
When stretching, the legs are firstly laid on the bearing plate, the legs penetrate through the first Contraband-shaped frame and then are stretched, the first lead screw is rotated to drive the moving block to move, and the first Contraband-shaped frame, the second Contraband-shaped frame, the limiting plate and the second lead screw are synchronously driven to move until the limiting plate moves to the position corresponding to the knee. The second Contraband-shaped frame and the limiting plate are driven to move towards the knee by rotating the second lead screw until the limiting plate is attached to the surface of the knee, the knee is limited by the limiting plate, and the knee is prevented from being bent, so that the leg is always in a stretched straight state. When lifting the leg and stretching, the shank drives strip shaped plate, horizontal axis, ring and lug synchronous rotation, controls lug pivoted maximum angle through positioning mechanism to the maximum angle that strip shaped plate and shank lifted is controlled, avoids lifting the ligament strain that the leg height leads to.
Buffer gear is installed to the position that the bottom plate upper surface corresponds the bar shaped plate, and buffer gear includes the guide block of fixed mounting at the bottom plate upper surface, and the guide way has vertically been seted up to the guide block top surface, and vertical sliding fit has the buffer block in the guide way, and the buffer block top surface is the arcwall face. And a buffer spring is connected between the bottom surface of the buffer block and the bottom surface of the guide groove.
Put down the in-process after the shank is lifted, the buffer block top surface is laminated to the strip shaped plate bottom surface and promotes the buffer block and descends in the guide way, and buffer spring is compressed and plays the cushioning effect to the decline of strip shaped plate and shank, avoids putting down the too fast ligament strain that leads to of leg action.
As a preferred technical scheme of the invention, the positioning mechanism comprises an elastic telescopic block vertically and slidably mounted on the end face of the bearing plate, the elastic telescopic block is in a horizontal state, and the end face of a telescopic section of the elastic telescopic block is an arc-shaped face. Vertical adjusting bolts are rotatably arranged on the end face of the bearing plate through the mounting block and penetrate through the fixing sections of the elastic telescopic blocks. The elastic telescopic block is driven to vertically move by rotating the adjusting bolt, and the telescopic section of the elastic telescopic block slides and contracts on the circumferential surface of the circular ring in the vertical movement process until the telescopic section of the elastic telescopic block reaches a preset position. When the circular ring and the convex block rotate, the maximum rotating angle of the convex block is limited by the telescopic section of the elastic telescopic block.
As a preferable technical scheme of the invention, the bottom surface of the limiting plate is an arc-shaped surface and is fixedly provided with a plurality of parallel rubber strips so as to increase the contact area and the friction force with the knee and avoid the knee from bending and moving.
As a preferred technical scheme of the invention, the lifting block is fixedly arranged on the bottom surface of the buffer block, and the bottom surface of the lifting block is an arc-shaped surface. The horizontal groove has been seted up on the guide way lateral wall, and sliding fit has supplementary buffer block in the horizontal groove, and supplementary buffer block is the arcwall face towards the terminal surface of lifter, the supplementary buffer spring of fixedly connected with between supplementary buffer block and the horizontal groove terminal surface. The buffer block descends in-process and drives the elevator to descend synchronously, the bottom surface of the elevator is attached to the end surface of the auxiliary buffer block to push the auxiliary buffer block to move horizontally, the auxiliary buffer spring is compressed to buffer the horizontal movement of the auxiliary buffer block, then the descending process of the buffer block and the elevator is buffered, the speed of the leg when the leg is put down is further slowed down, and ligament strain is avoided.
According to a preferable technical scheme of the invention, the top surface of the buffer block is provided with an accommodating groove, the lower surface of the strip-shaped plate is fixedly provided with a locking block at a position corresponding to the accommodating groove, and the side wall of the buffer block is horizontally and slidably provided with a locking rod penetrating through the buffer block and the locking block. When the strip-shaped plate is in a horizontal state, the locking block is positioned in the accommodating groove, and under the state, the locking rod penetrates through the buffer block and the locking block, so that the strip-shaped plate and the buffer block are locked together.
As a preferable technical scheme of the invention, a vertical groove is formed in the side wall of the guide groove, and a sliding block in sliding fit with the vertical groove is fixedly installed on the side wall of the buffer block. When the bar is in the horizontality, the slider is located vertical groove bottommost to fix the position of buffer block and bar, further ensure that bar and shank are in the horizontality.
As a preferred technical scheme of the invention, one end of the horizontal shaft, which is far away from the circular ring, is fixedly provided with a circular disc which is superposed with the axis of the horizontal shaft, and the circumferential surface of the circular disc is fixedly provided with a plurality of arc-shaped blocks. The radian of the two sides of the top point of the arc block is different. The bearing plate is fixedly provided with a limiting sleeve and is horizontally and slidably provided with a sliding rod through the limiting sleeve, the sliding rod corresponds to the disc in position, and the end face of the sliding rod facing the disc is an arc-shaped face. A bearing plate is fixedly arranged on the bearing plate, and a return spring is fixedly connected between the bearing plate and the other end face of the sliding rod. Strip shaped plate and shank lift and put down the in-process, the horizontal axis drives disc and arc piece synchronous rotation, promote the slide bar when the arc piece rotates, the slide bar is reciprocating motion under arc piece thrust effect and reset spring elastic action, play the hindrance effect through the rotation to disc and arc piece, thereby lift and put down the process to strip shaped plate and shank and play the cushioning effect, because the radian of arc piece summit both sides is different, so strip shaped plate and shank lift up and put down the resistance variation that the in-process received, the resistance that receives when lifting, be convenient for lift going on of leg action, the resistance that receives when putting down is big, play the cushioning effect with whole process to putting down the leg.
As a preferable technical scheme of the invention, the surface of the sliding rod is provided with a plurality of balls which are in rolling fit with the inner wall of the limiting sleeve, so that the friction force between the sliding rod and the limiting sleeve is reduced, and the sliding rod and the limiting sleeve are prevented from being abraded.
(III) the beneficial effects are as follows: (1) the invention solves the following problems when a stretching instrument is adopted to stretch the leg part: the legs are difficult to be ensured to be in a stretched straight state all the time, and when one leg is stretched, the other leg cannot be kept in a horizontal state, so that the stretching effect is influenced; the angle of lifting the leg is difficult to accurately control, the action speed of lifting the leg is difficult to control, and the ligament injury is easily caused by too high speed.
(2) When the leg stretching device is used for stretching a leg, the first Contraband-shaped frame, the second Contraband-shaped frame and the limiting plate are driven to move to the position corresponding to the knee through the first lead screw, and then the limiting plate is driven to abut against the knee through the second lead screw so as to prevent the knee from bending, so that the leg is always in a stretched state, and the stretching effect is guaranteed; the locking block and the locking rod are matched to integrally limit the strip-shaped plate, so that the strip-shaped plate is prevented from rotating, one leg is stretched while the other leg is in a horizontal stretched state, and the stretching effect is further ensured.
(3) When the leg stretching device is used for stretching the leg, the maximum rotating angle of the lug, the circular ring and the horizontal shaft is limited through the positioning mechanism, so that the lifting angle of the strip-shaped plate and the leg is limited, and ligament injury caused by overhigh leg lifting is avoided. The invention buffers the strip-shaped plate in the falling process through the buffer mechanism and buffers the rotation process of the horizontal shaft through the elasticity of the return spring, thereby avoiding the ligament damage caused by the over-high speed in the leg laying process.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a perspective view of a stretching apparatus prior to exercise in accordance with an embodiment of the present invention.
FIG. 2 is a side view of a pre-motion stretching instrument in an embodiment of the present invention.
FIG. 3 is an elevation view of a stretching instrument prior to movement in an embodiment of the present invention.
Fig. 4 is an enlarged schematic view of a portion a of fig. 1.
Fig. 5 is an enlarged schematic view of fig. 2 at B.
Fig. 6 is an enlarged schematic view at C in fig. 2.
Fig. 7 is an enlarged schematic view at D in fig. 3.
In the figure: 1-bottom plate, 2-bracket, 3-supporting plate, 4-rotating mechanism, 401-supporting bracket, 402-horizontal shaft, 403-strip plate, 404-circular ring, 405-convex block, 406-first Contraband-shaped frame, 407-second Contraband-shaped frame, 408-limiting plate, 409-moving block, 410-first lead screw, 411-second lead screw, 412-rubber strip, 413-locking block, 5-positioning mechanism, 501-elastic telescopic block, 502-adjusting bolt, 6-buffer mechanism, 601-guide block, 602-guide groove, 603-buffer block, 604-buffer spring, 605-lifting block, 606-horizontal groove, 607-auxiliary buffer block, 608-auxiliary buffer spring, 609-accommodating groove, 610-locking rod, 611-vertical groove, 612-slide block, 7-disc, 8-arc block, 9-position limiting sleeve, 10-sliding rod, 11-bearing plate, 12-reset spring and 13-ball.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
As shown in figures 1 and 4, the embodiment provides a stretching device before exercise, which comprises a horizontal base plate 1, wherein a bracket 2 is fixedly arranged on the upper surface of the base plate 1, and a horizontal bearing plate 3 is fixedly arranged on the top of the bracket 2. Two rotating mechanisms 4 are installed on the end face of one side of the supporting plate 3, each rotating mechanism 4 comprises two supporting brackets 401 fixedly installed on the supporting plate 3, a horizontal shaft 402 is installed between the two supporting brackets 401 in a rotating mode, and a strip-shaped plate 403 is fixedly sleeved on the horizontal shaft 402. One end of the horizontal shaft 402 is sleeved with a circular ring 404, a convex block 405 is fixedly arranged on the outer circumferential surface of the circular ring 404, and a positioning mechanism 5 matched with the convex block 405 is arranged on the end surface of the bearing plate 3.
As shown in fig. 4, the positioning mechanism 5 includes an elastic expansion block 501 vertically slidably mounted on the end surface of the supporting plate 3, the elastic expansion block 501 is in a horizontal state, and the end surface of the expansion section of the elastic expansion block 501 is an arc surface. Vertical adjusting bolts 502 are rotatably installed on the end face of the bearing plate 3 through the installation blocks, and the adjusting bolts 502 penetrate through the fixed section of the elastic telescopic block 501. The adjusting bolt 502 is rotated to drive the elastic telescopic block 501 to vertically move, and the telescopic section of the elastic telescopic block 501 slides and contracts on the circumferential surface of the circular ring 404 in the vertical movement process until the telescopic section of the elastic telescopic block 501 reaches a preset position. When the ring 404 and the projection 405 rotate, the elastic expansion block 501 expands and contracts to limit the maximum rotation angle of the projection 405.
As shown in fig. 1, a first Contraband-shaped frame 406 with a downward opening is slidably mounted on the upper surface of the strip-shaped plate 403 along the length direction thereof, a second Contraband-shaped frame 407 with a downward opening is vertically slidably mounted on the horizontal section of the first Contraband-shaped frame 406, and a limit plate 408 is fixedly mounted at the end of the vertical section of the second Contraband-shaped frame 407. The bottom surface of the limiting plate 408 is an arc-shaped surface and is fixedly provided with a plurality of rubber strips 412 which are parallel to each other, so that the contact area and the friction force between the rubber strips and the knees are increased, and the knees are prevented from bending and moving. A moving block 409 is fixedly installed on the outer side wall of the vertical section of the first Contraband-shaped frame 406, and a first lead screw 410 penetrating through the moving block 409 is rotatably installed on the upper surface of the strip-shaped plate 403 through a lead screw bracket. The top surface of the horizontal section of the first Contraband-shaped frame 406 is rotatably provided with a second lead screw 411 which penetrates through the horizontal section of the second Contraband-shaped frame 407.
When stretching is carried out, the user firstly lies on the supporting plate 3, the two legs pass through the first Contraband-shaped frame 406 and then stretch straight, the moving block 409 is driven to move by rotating the first lead screw 410, and the first Contraband-shaped frame 406, the second Contraband-shaped frame 407, the limiting plate 408 and the second lead screw 411 are synchronously driven to move until the limiting plate 408 moves to the position corresponding to the knee. The second Contraband-shaped frame 407 and the limiting plate 408 are driven to move towards the knee by rotating the second lead screw 411 until the limiting plate 408 is attached to the surface of the knee, the knee is limited by the limiting plate 408, the knee is prevented from being bent, and therefore the leg is always in a stretched state. When the leg is lifted and stretched, the leg drives the strip-shaped plate 403, the horizontal shaft 402, the circular ring 404 and the lug 405 to synchronously rotate, and the maximum rotating angle of the lug 405 is controlled through the positioning mechanism 5, so that the maximum lifting angle of the strip-shaped plate 403 and the leg is controlled, and ligament strain caused by too high leg lifting is avoided.
As shown in fig. 2 and 5, the buffer mechanism 6 is installed at a position, corresponding to the strip-shaped plate 403, on the upper surface of the bottom plate 1, the buffer mechanism 6 includes a guide block 601 fixedly installed on the upper surface of the bottom plate 1, a guide groove 602 is vertically formed in the top surface of the guide block 601, a buffer block 603 is vertically and slidably fitted in the guide groove 602, and the top surface of the buffer block 603 is an arc-shaped surface. A buffer spring 604 is connected between the bottom surface of the buffer block 603 and the bottom surface of the guide groove 602. The bottom surface of the buffer block 603 is fixedly provided with a lifting block 605, and the bottom surface of the lifting block 605 is an arc surface. Horizontal groove 606 has been seted up on the guide way 602 lateral wall, and sliding fit has supplementary buffer block 607 in horizontal groove 606, and supplementary buffer block 607 is the arcwall face towards the terminal surface of elevator 605, and fixedly connected with supplementary buffer spring 608 between supplementary buffer block 607 and the horizontal groove 606 terminal surface.
In the process of putting down after the leg is lifted, the bottom surface of the strip-shaped plate 403 is attached to the top surface of the buffer block 603 and pushes the buffer block 603 to descend in the guide groove 602, the buffer spring 604 is compressed and plays a role in buffering the descending of the strip-shaped plate 403 and the leg, and ligament strain caused by too fast leg putting-down action is avoided. Buffer block 603 descends in-process and drives lift block 605 and descend in step, and the bottom surface of lift block 605 promotes supplementary buffer block 607 horizontal migration behind the terminal surface of supplementary buffer block 607, and supplementary buffer spring 608 is compressed and plays the cushioning effect to the horizontal migration of supplementary buffer block 607, and then plays the cushioning effect to the descending process of buffer block 603 and lift block 605, has further slowed down the speed when the shank puts down, avoids the ligament to pull.
As shown in fig. 2 and 7, the top surface of the buffer block 603 is provided with a receiving groove 609, the lower surface of the strip-shaped plate 403 is fixedly provided with a locking block 413 corresponding to the receiving groove 609, and the side wall of the buffer block 603 is horizontally and slidably provided with a locking rod 610 penetrating through the buffer block 603 and the locking block 413. A vertical groove 611 is formed in the side wall of the guide groove 602, and a sliding block 612 which is in sliding fit with the vertical groove 611 is fixedly mounted on the side wall of the buffer block 603.
When strip-shaped plate 403 is in the horizontality, locking piece 413 is located holding tank 609, slider 612 is located vertical groove 611 bottommost, under this state, with locking lever 610 pass buffer block 603 and locking piece 413, thereby with strip-shaped plate 403 and buffer block 603 locking together, because vertical groove 611 plays limiting displacement to slider 612, the event can guarantee that strip-shaped plate 403 and shank are in the horizontality, and then guaranteed when stretching a leg, another leg is in the level state of straining all the time, further guaranteed tensile effect.
As shown in fig. 2 and 6, a disc 7 coinciding with the axis of the horizontal shaft 402 is fixedly mounted at one end of the horizontal shaft 402 away from the circular ring 404, and a plurality of arc-shaped blocks 8 are fixedly mounted on the circumferential surface of the disc 7. The radian of the two sides of the top point of the arc block 8 is different. The supporting plate 3 is fixedly provided with a limiting sleeve 9 and is horizontally and slidably provided with a sliding rod 10 through the limiting sleeve 9, the sliding rod 10 corresponds to the disc 7, and the end face, facing the disc 7, of the sliding rod 10 is an arc-shaped face. A plurality of balls 13 which are in rolling fit with the inner wall of the limit sleeve 9 are arranged on the surface of the sliding rod 10 in a rolling manner, so that the friction force between the sliding rod 10 and the limit sleeve 9 is reduced, and the sliding rod 10 and the limit sleeve 9 are prevented from being abraded. A bearing plate 11 is fixedly arranged on the bearing plate 3, and a return spring 12 is fixedly connected between the bearing plate 11 and the other end face of the sliding rod 10. Strip-shaped plate 403 and shank lift up and put down the in-process, horizontal axis 402 drives disc 7 and 8 synchronous rotations of arc piece, promote slide bar 10 when arc piece 8 rotates, slide bar 10 is reciprocating motion under 8 thrust action of arc piece and reset spring 12 elastic force effect, play the hindrance effect through the rotation to disc 7 and arc piece 8, thereby lift up and put down the process to strip-shaped plate 403 and shank and play the cushioning effect, because the radian of 8 summit both sides of arc piece is different, so strip-shaped plate and shank lift up and put down the resistance that the in-process received different in size, the resistance that receives when lifting up is little, be convenient for lift going on of leg action, the resistance that receives when putting down is big, play the cushioning effect to the whole process of putting down the leg.
The application steps of the stretching device before movement in the embodiment are as follows: the legs are firstly laid on the bearing plate 3, the legs penetrate through the first Contraband-shaped frame 406 and then are stretched straight, the moving block 409 is driven to move by rotating the first lead screw 410, and the first Contraband-shaped frame 406, the second Contraband-shaped frame 407, the limiting plate 408 and the second lead screw 411 are synchronously driven to move until the limiting plate 408 moves to the position corresponding to the knee. The second Contraband-shaped rack 407 and the limit plate 408 are driven to move towards the knee by rotating the second lead screw 411 until the limit plate 408 is attached to the surface of the knee. One locking rod 610 penetrates through the buffer block 603 and the locking block 413, so that the strip-shaped plate 403 and the buffer block 603 are locked together, one leg is ensured to be in a horizontal stretched state, and the other leg can be lifted and stretched.
The adjusting bolt 502 is rotated to drive the elastic telescopic block 501 to vertically move, and the telescopic section of the elastic telescopic block 501 slides and contracts on the circumferential surface of the circular ring 404 in the vertical movement process until the telescopic section of the elastic telescopic block 501 reaches a preset position. When the leg is lifted for stretching, the leg drives the strip-shaped plate 403, the horizontal shaft 402, the circular ring 404 and the convex block 405 to synchronously rotate, and the maximum rotating angle of the convex block 405 is limited through the telescopic section of the elastic telescopic block 501, so that the maximum lifting angle of the strip-shaped plate 403 and the leg is controlled, and ligament strain caused by lifting too high leg is avoided.
In the process of putting down after the leg is lifted, the bottom surface of the strip-shaped plate 403 is attached to the top surface of the buffer block 603 and pushes the buffer block 603 to descend in the guide groove 602, the buffer spring 604 is compressed and plays a role in buffering the descending of the strip-shaped plate 403 and the leg, and ligament strain caused by too fast leg putting-down action is avoided. Buffer block 603 descends in-process and drives lift block 605 and descend in step, and the bottom surface of lift block 605 promotes supplementary buffer block 607 horizontal migration behind the terminal surface of supplementary buffer block 607, and supplementary buffer spring 608 is compressed and plays the cushioning effect to the horizontal migration of supplementary buffer block 607, and then plays the cushioning effect to the descending process of buffer block 603 and lift block 605, has further slowed down the speed when the shank puts down, avoids the ligament to pull. In the lifting and lowering processes of the strip-shaped plate 403 and the leg, the horizontal shaft 402 drives the disc 7 and the arc-shaped block 8 to synchronously rotate, the sliding rod 10 reciprocates under the thrust action of the arc-shaped block 8 and the elastic action of the return spring 12, and the rotation of the disc 7 and the arc-shaped block 8 is hindered, so that the lifting and lowering processes of the strip-shaped plate 403 and the leg are buffered.
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. A pre-exercise stretching apparatus characterized by: the device comprises a horizontal bottom plate (1), wherein a bracket (2) is fixedly arranged on the upper surface of the bottom plate (1), and a horizontal bearing plate (3) is fixedly arranged at the top of the bracket (2); two rotating mechanisms (4) are mounted on the end face of one side of the supporting plate (3), each rotating mechanism (4) comprises two supporting brackets (401) fixedly mounted on the supporting plate (3), a horizontal shaft (402) is rotatably mounted between the two supporting brackets (401), and a strip-shaped plate (403) is fixedly sleeved on the horizontal shaft (402); one end of the horizontal shaft (402) is sleeved with a circular ring (404), a convex block (405) is fixedly arranged on the outer circumferential surface of the circular ring (404), and a positioning mechanism (5) matched with the convex block (405) is arranged on the end surface of the bearing plate (3);
a first Contraband-shaped frame (406) with a downward opening is slidably mounted on the upper surface of the strip-shaped plate (403) along the length direction of the strip-shaped plate, a second Contraband-shaped frame (407) with a downward opening is vertically slidably mounted on the horizontal section of the first Contraband-shaped frame (406), and a limit plate (408) is fixedly mounted at the end of the vertical section of the second Contraband-shaped frame (407); a moving block (409) is fixedly installed on the outer side wall of the vertical section of the first Contraband-shaped frame (406), and a first lead screw (410) penetrating through the moving block (409) is rotatably installed on the upper surface of the strip-shaped plate (403) through a lead screw bracket; the top surface of the horizontal section of the first Contraband-shaped frame (406) is rotatably provided with a second lead screw (411) which penetrates through the horizontal section of the second Contraband-shaped frame (407);
the upper surface of the bottom plate (1) is provided with a buffer mechanism (6) corresponding to the position of the strip-shaped plate (403), the buffer mechanism (6) comprises a guide block (601) fixedly arranged on the upper surface of the bottom plate (1), the top surface of the guide block (601) is vertically provided with a guide groove (602), a buffer block (603) is vertically and slidably matched in the guide groove (602), and the top surface of the buffer block (603) is an arc-shaped surface; a buffer spring (604) is connected between the bottom surface of the buffer block (603) and the bottom surface of the guide groove (602).
2. The pre-exercise stretching instrument of claim 1, wherein: the positioning mechanism (5) comprises an elastic telescopic block (501) vertically and slidably mounted on the end face of the bearing plate (3), the elastic telescopic block (501) is in a horizontal state, and the end face of a telescopic section of the elastic telescopic block (501) is an arc-shaped face; vertical adjusting bolts (502) are rotatably installed on the end face of the bearing plate (3) through the installation block, and the adjusting bolts (502) penetrate through the fixing sections of the elastic telescopic blocks (501).
3. The pre-exercise stretching instrument of claim 1, wherein: the bottom surface of the limiting plate (408) is an arc-shaped surface and is fixedly provided with a plurality of parallel rubber strips (412).
4. The pre-exercise stretching instrument of claim 1, wherein: the bottom surface of the buffer block (603) is fixedly provided with a lifting block (605), and the bottom surface of the lifting block (605) is an arc-shaped surface; horizontal groove (606) have been seted up on guide way (602) lateral wall, and sliding fit has supplementary buffer block (607) in horizontal groove (606), and supplementary buffer block (607) are the arcwall face towards the terminal surface of lifter (605), fixedly connected with supplementary buffer spring (608) between supplementary buffer block (607) and horizontal groove (606) terminal surface.
5. The pre-exercise stretching instrument of claim 1, wherein: holding tank (609) have been seted up to buffer block (603) top surface, and the fixed position that bar shaped plate (403) lower surface corresponds holding tank (609) installs locking block (413), and horizontal slidable mounting has locking lever (610) that runs through buffer block (603) and locking block (413) on buffer block (603) lateral wall.
6. The pre-exercise stretching instrument of claim 5, wherein: a vertical groove (611) is formed in the side wall of the guide groove (602), and a sliding block (612) in sliding fit with the vertical groove (611) is fixedly mounted on the side wall of the buffer block (603).
7. The pre-exercise stretching instrument of claim 1, wherein: a disc (7) which is coincident with the axis of the horizontal shaft (402) is fixedly installed at one end of the horizontal shaft (402) far away from the circular ring (404), and a plurality of arc-shaped blocks (8) are fixedly installed on the circumferential surface of the disc (7); the radians of the two sides of the top point of the arc block (8) are different; a limiting sleeve (9) is fixedly arranged on the bearing plate (3), a sliding rod (10) is horizontally and slidably arranged through the limiting sleeve (9), the sliding rod (10) corresponds to the disc (7) in position, and the end face, facing the disc (7), of the sliding rod (10) is an arc-shaped face; a bearing plate (11) is fixedly arranged on the bearing plate (3), and a return spring (12) is fixedly connected between the bearing plate (11) and the other end face of the sliding rod (10).
8. The pre-exercise stretching instrument of claim 7, wherein: and a plurality of balls (13) which are in rolling fit with the inner wall of the limiting sleeve (9) are arranged on the surface of the sliding rod (10) in a rolling way.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110805247.0A CN113521656B (en) | 2021-07-13 | 2021-07-13 | Stretching apparatus before motion |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110805247.0A CN113521656B (en) | 2021-07-13 | 2021-07-13 | Stretching apparatus before motion |
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| CN113521656B CN113521656B (en) | 2022-05-03 |
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| CN108030621A (en) * | 2017-12-21 | 2018-05-15 | 太和县人民医院 | A kind of medical knee fixing device for being installed on sick bed |
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| CN113521656B (en) | 2022-05-03 |
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