CN112006894B - Waist traction device - Google Patents

Abstract

The invention discloses a waist traction device, which relates to the field of exercise equipment. To achieve the above object, the technical solution of the invention includes a support plate and a swing plate; the support plate is used to support the back, and a pulley is provided at the bottom of the support plate; The swing plate is arranged corresponding to the thigh, and the fixed end of the swing plate is hinged to the right end of the support plate; the swing plate is provided with a strap tied with the thigh. Ensure sufficient exercise intensity, but can make the muscles of the abdomen, waist and lower limbs get moderate traction exercise, the most important thing is the traction of the muscles of the lower back, which is very beneficial to the rehabilitation training and treatment of patients with lumbar muscle strain or lumbar disc herniation. Older people exercise can keep their bodies safe while exercising, and have a certain therapeutic effect.

Description

A waist traction device

technical field

The invention relates to a waist traction device, and mainly relates to the field of exercise equipment.

Background technique

When patients with lumbar muscle strain or lumbar disc herniation are doing rehabilitation training or exercising for older people, they need to pay great attention to safety issues. How to help users exercise their body muscles and ensure sufficient exercise while ensuring good exercise effect , and having a certain therapeutic effect and safety are problems faced by many rehabilitation exercise equipment. This application aims to solve this problem and provide a corresponding solution.

Contents of the invention

Aiming at the above deficiencies in the prior art, the present invention proposes a waist traction device, which ensures sufficient exercise intensity, but enables the muscles of the abdomen, waist and lower limbs to be properly tractioned and exercised, while the muscles of the waist and back are tracted, which is very It is beneficial to the rehabilitation training of patients with lumbar muscle strain or lumbar disc herniation or the exercise of older people, and can ensure physical safety while exercising.

In order to achieve the above object, the technical solution of the present invention is: including a support plate and a swing plate; the support plate is used to support the back, and the bottom of the support plate is provided with a pulley; the swing plate is set corresponding to the thigh, and the swing plate The fixed end is hinged with the right end of the supporting board; the swinging board is provided with a strap tied with the thigh.

Technical principle of the present invention and beneficial effect are as follows:

When in use, the support board is placed on the floor through pulleys, and the user lies on the support board with his or her back, the thighs are placed on the swing board and tied together by straps, the soles of the feet are placed on the floor, and then the legs are straightened and bent , because the soles of the feet are placed on the floor, the support plate will slide back and forth on the floor when doing the above actions, that is, the friction of the soles of the feet acts on the ground to realize the reciprocating motion of the whole body.

Through the above schemes, the muscles of the user's abdomen, waist and lower limbs can be exercised to obtain moderate traction exercises. The most important thing is to obtain traction for the muscles of the lower back. Elderly people exercise can ensure physical safety while exercising, and have a certain therapeutic effect.

Preferably, a torsion spring is sheathed on the hinged mandrel at the fixed end of the swing plate, and the two ends of the torsion spring are respectively fixed to the swing plate and the support plate. When there is no external force, the torsion spring makes the The free end of the swinging plate is placed upwards obliquely, and the upward swinging force is provided by the torsion spring, so that the user will have appropriate resistance in the process of straightening, and the difficulty of exercising will be increased.

Preferably, when there is no external force, the included angle between the swing plate and the support plate is 30-45 degrees, which is more convenient for the comfort of lying down normally.

Preferably, the free end of the oscillating plate is docked with a contact bar, and a spring pin is arranged inside the oscillating plate, and the outer end of the spring pin is led out from the free end of the oscillating plate and connected with the contact bar, namely The contact strip is located in the popliteal fossa of the user. When the user bends the knee, the contact strip will be squeezed inward to increase the difficulty of the user's bending and exercise the muscles of the legs.

Preferably, the support plate is provided with an inner cavity, the inner cavity is provided with a linear rack and a rotating shaft, the linear rack is slidably fitted inside the inner cavity, and the linear rack slides from the support plate The right end of the shaft is distributed to the left, and the rotating shaft is vertically arranged in the inner cavity relative to the linear rack, and the rotating shaft is rotatably matched with the supporting plate, and several sections of cylindrical cams are arranged on the rotating shaft; the supporting plate The upper surface of the upper surface of the cylindrical cam is provided with a sliding hole corresponding to the sliding hole, and a sliding pin is slidably fitted in the sliding hole. The lower end of the sliding pin is against the side wall of the cylindrical cam. During the rotation of the cylindrical cam, The upper end of the sliding pin reciprocates in and out of the upper port of the sliding hole; the rotating shaft is also coaxially provided with a linkage gear meshing with the linear rack; The arc rack of the shaft is engaged with the linear rack through a transition gear set, and the swing plate drives the linear rack to slide back and forth during the swinging process.

During the swinging process, the swing plate will reciprocate the linear rack through the transition gear set, that is, the linear rack slides reciprocally and horizontally in the inner cavity. Since the rack is meshed with a linkage gear, the rotation of the linkage gear will drive the cylindrical cam to rotate together. , and the cylindrical cam is in contact with the lower end of the sliding pin, so when the cylindrical cam rotates, it will drive the sliding pin to slide up and down. During the process of sliding up and down, the sliding pin will reciprocate in and out of the upper port of the sliding hole, that is, when the user lies on the back of the support plate During exercise, the upper end of the sliding pin will continuously massage the user's back, so that the user's back can be relaxed during exercise. When straightening and bending, it brings resistance and increases the difficulty of the user's exercise.

Preferably, the lower end of the sliding pin is provided with a ball socket, and a ball is rotated in the ball socket, and the lower end of the ball abuts against the side wall of the cylindrical cam, and the lower end of the sliding pin can be connected with the ball socket The frictional force of the cylindrical cam becomes smaller, which is convenient to drive the sliding pin to slide up and down, and improves the service life of the whole.

Preferably, the sliding pin includes an upper massage head and a lower base, the ball socket is fixed on the lower end of the base, and balls are rotated in the ball socket, and the massage head and the base The thread is coaxially butted, and when the upper end of the sliding pin reciprocates in and out of the sliding hole, the base is always located in the sliding hole, which is convenient for adjusting the position of the sliding pin relative to the sliding hole up and down according to actual needs, whether it is always protruding Sliding hole or not sticking out of the sliding hole at all.

Preferably, the linear racks include several linear racks, each of which is arranged parallel to each other, and each of the linear racks is independently provided with a set of the rotating shaft, cylindrical cam and sliding pin, and the transition gear set includes Wheel shaft, several transition wheels and sleeves, the middle part of the wheel shaft is provided with an external spline segment corresponding to the end of the linear rack, the two ends of the wheel shaft are respectively detachable and rotatably fitted in the support plate, and the transition The outer spline section corresponding to the shaft center of the wheel and the sleeve sleeve is provided with an inner spline hole, and several transition wheels and/or the sleeve sleeve splines are fitted on the axle, and the transition wheels and/or The space occupied by the bushing on the wheel shaft is provided in one-to-one correspondence with the linear rack.

Both the sleeve and the transition wheel are spline-fitted on the axle, that is, the sleeve and the transition wheel can be disassembled upward from the axle, but once fitted on the axle, they will rotate coaxially.

The space occupied by the transition wheel and/or the sleeve on the axle is set in one-to-one correspondence with the linear rack, that is, the transition wheel and the sleeve can be replaced with each other, and can be selected at this position according to actual needs. Cooperate with the transition wheel or the sleeve. If the transition wheel is used, the swing plate can smoothly transmit to the linear rack. If it is used with the sleeve, it cannot be transmitted to the linear rack. Through the above, the transmission of some linear racks can be realized. , in order to adjust the linear rack that needs to be driven more autonomously.

Preferably, the side wall of the inner cavity is respectively provided with a disassembly window corresponding to the two ends of the wheel shaft, and a fixing plate is arranged in the disassembly window through bolts, and the two ends of the wheel shaft are rotatably fitted to the fixing plate through bearings In addition, the transition wheel and sleeve can be easily installed by setting the disassembly window. After adjusting the transition wheel and sleeve on the axle according to the needs, open the fixing plate and then fit the transition wheel and sleeve into the inner cavity, and fix the fixing plate on the disassembly The window is ready to go.

Preferably, a protective layer is provided at the inner corner of the swing plate and the support plate, and the protective layer is a foldable and telescopic S-shaped plastic plate, where the user will contact the buttocks when lying down, and the S-shaped plastic plate The plate keeps the buttocks from contact with the curved rack.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only of the present invention. Among them, for those of ordinary skill in the art, other drawings can be obtained based on these drawings without any creative work.

Fig. 1 is the internal schematic diagram of the embodiment of the present invention;

Fig. 2 is a partial enlarged view of A in Fig. 1;

Fig. 3 is a partial enlarged view of B of Fig. 1;

Fig. 4 is a partial enlarged view of C in Fig. 1;

Fig. 5 is a schematic view of the shank button with air holes in Fig. 1;

Fig. 6 is the schematic diagram of slide pin and cam of the embodiment of the present invention;

Fig. 7 is the schematic diagram of the fixing plate of the embodiment of the present invention;

Fig. 8 is a schematic diagram of an axle, a transition wheel and a sleeve according to an embodiment of the present invention;

Fig. 9 is a cross-sectional view of each linear rack and the inner cavity of the embodiment of the present invention;

Fig. 10 is a schematic diagram of the exterior of the embodiment of the present invention.

Among them, support plate 1, swing plate 2, inner cavity 3, linear rack 4, strap 5, pulley 6, fixed plate 7, contact strip 8, sliding pin 9, S-shaped plastic plate 10, arc rack 11, Transition wheel 12, wheel shaft 13, interlocking gear 14, spring 15, tube sleeve 16, massage head 17, ball 18, base 19, cylindrical cam 20, socket 21, elastic rubber layer 22, vent 23.

Detailed ways

The technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are only preferred embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Example 1

As shown in FIG. 1 , the embodiment of the present invention includes a support plate 1 and a swing plate 2 .

The support plate 1 is used to support the back, and the bottom of the support plate 1 is provided with a pulley 6; the swing plate 2 is arranged corresponding to the thigh, and the fixed end of the swing plate 2 is hinged with the right end of the support plate 1; The swing plate 2 is provided with a strap 5 bound with the thigh.

The hinged mandrel at the fixed end of the swing plate 2 is covered with a torsion spring, and the two ends of the torsion spring are respectively fixed on the swing plate 2 and the support plate 1. When there is no external force, the torsion spring makes the The free end of the swing plate 2 is placed obliquely upwards, and the upward swinging force is provided by the torsion spring, so that the user has appropriate resistance in the process of straightening, which improves the difficulty of exercising.

When there is no external force, the angle between the swing plate 2 and the support plate 1 is 30-45 degrees, which is more convenient for the comfort of lying down.

As shown in FIG. 3 , the free end of the oscillating plate 2 is butted with a contact strip 8 , and a spring pin is arranged inside the oscillating plate 2 , and the outer end of the spring pin is drawn out from the free end of the oscillating plate 2 and connected with The contact strip 8 is connected, that is, the contact strip 8 is in the popliteal fossa of the user, and when the user bends the knee, the contact strip 8 will be squeezed inwards to improve the difficulty of bending the user and exercise the muscles of the legs.

When in use, the support board 1 is placed on the floor through the pulley 6, and the user lies on the back of the support board 1, wherein the thighs are placed on the swing board 2 and tied together by straps 5, and the soles of the feet are placed on the floor, and then straightened And the action of bending the calf, because the soles of the feet are placed on the floor, so when doing the above actions, the support plate 1 will do the reciprocating sliding action on the floor, that is, through the friction force of the soles of the feet on the ground, the whole body can be reciprocated sports.

Through the above schemes, the muscles of the user's abdomen, waist and lower limbs can be exercised to obtain moderate traction exercises. The most important thing is to obtain traction for the muscles of the lower back. Elderly people exercise can ensure physical safety while exercising, and have a certain therapeutic effect.

Example 2

In conjunction with Figure 1, the support plate 1 is provided with an inner cavity 3, the inner cavity 3 is provided with a linear rack 4 and a rotating shaft, the linear rack 4 is slidably fitted inside the inner cavity 3, and the linear gear Bars 4 are distributed from the right end of the support plate 1 to the left, and the rotating shaft is vertically arranged in the inner cavity 3 relative to the linear rack 4, and the rotating shaft is rotatably matched with the supporting plate 1. On the rotating shaft There are several sections of cylindrical cams 20; the upper surface of the support plate 1 is provided with a sliding hole corresponding to the cylindrical cam 20, and a sliding pin 9 is slidably fitted in the sliding hole, and the lower end of the sliding pin 9 abuts against the The side wall of the cylindrical cam 20, during the rotation of the cylindrical cam 20, the upper end of the sliding pin 9 reciprocates in and out of the upper port of the sliding hole; the rotating shaft is also coaxially provided with the linear rack 4 meshing linkage gear 14; the fixed end of the swing plate 2 is provided with an arc rack coaxial with the hinged mandrel, and the arc rack meshes with the linear rack 4 through a transition gear set, the During the swinging process of the swinging plate 2, the linear rack 4 is driven to slide back and forth.

During the swinging process, the swing plate 2 will reciprocate the linear rack 4 through the transition gear set, that is, the linear rack 4 reciprocates and slides horizontally in the inner cavity 3. Since the rack meshes with the linkage gear 14, the rotation of the linkage gear 14 It will drive the cylindrical cam 20 to rotate together, and the cylindrical cam 20 is in contact with the lower end of the sliding pin 9, so when the cylindrical cam 20 rotates, it will drive the sliding pin 9 to slide up and down. The upper port, that is, when the user's back is lying on the support plate 1, the upper end of the sliding pin 9 will continuously massage the user's back, so that the user's back can be relaxed during the exercise process, and the sliding up and down of the sliding pin 9 is Caused by the swinging of the swinging plate 2, the sliding pin 9 will also bring resistance when the user's legs are straightened and bent, increasing the difficulty of the user's exercise.

As shown in FIG. 9 and FIG. 6 , the lower end of the sliding pin 9 is provided with a ball socket, and a ball 18 is rotated in the ball socket, and the lower end of the ball 18 abuts against the side wall of the cylindrical cam 20 , Through the ball socket, the friction force between the lower end of the sliding pin 9 and the cylindrical cam 20 can be reduced, which is convenient to drive the sliding pin 9 to slide up and down and improve the overall service life.

Described slide pin 9 comprises the massage head 17 of top and the pedestal 19 of bottom, and described ball socket is fixed on the lower end of described pedestal 19, and ball 18 is rotated in described ball socket, and described massage head 17 and all The base 19 is threaded and coaxially butted, and when the upper end of the sliding pin 9 reciprocates in and out of the sliding hole, the base 19 is always located in the sliding hole, which is convenient for adjusting the sliding pin 9 up and down relative to the sliding hole according to actual needs. Whether the position of the sliding hole is extended all the time or not.

As shown in FIG. 8 , the linear racks 4 include several pieces, each of the linear racks 4 is arranged parallel to each other, and each of the linear racks 4 is independently provided with a set of the rotating shaft, cylindrical cam 20 and sliding pins. 9. The transition gear set includes a wheel shaft 13, a number of transition wheels 12 and sleeves 16, the middle part of the wheel shaft 13 is provided with an external spline section corresponding to the end of the linear rack 4, and the two ends of the wheel shaft 13 are respectively It can be detachably rotated and fitted in the support plate 1, and the outer spline section corresponding to the shaft center of the sleeve 16 is provided with an inner spline hole for the transition wheel 12, and several transition wheels 12 and/or the The bushing 16 is spline-fitted on the wheel shaft 13 , and the space occupied by the transition wheel 12 and/or the bushing 16 on the wheel shaft 13 is arranged in a one-to-one correspondence with the linear rack 4 .

Both the sleeve 16 and the transition wheel 12 are spline-fitted on the axle 13, that is, the sleeve 16 and the transition wheel 12 can be disassembled axially from the axle 13, but once fitted on the axle 13, they will realize coaxial rotation.

The space occupied by the transition wheel 12 and/or the sleeve 16 on the axle 13 is arranged in a one-to-one correspondence with the linear rack 4, that is, the transition wheel 12 and the sleeve 16 can be replaced with each other, and can be used according to actual conditions. It is necessary to choose to cooperate with the transition wheel 12 or the sleeve 16 at this position. If the transition wheel 12 is matched, the swing plate 2 can smoothly drive to the linear rack 4. If it is matched with the sleeve 16, it cannot be driven to the linear rack 4. 4 transmission, through the above, the transmission of part of the linear rack 4 can be realized, so that the linear rack 4 that needs to be driven can be adjusted more autonomously.

7 and 10, the side wall of the inner cavity 3 is respectively provided with disassembly windows corresponding to the two ends of the wheel shaft 13, and a fixing plate 7 is arranged in the disassembly window through bolts, and the two ends of the wheel shaft 13 The end is rotated and fitted on the fixed plate 7 through the bearing, and the transition wheel 12 and the sleeve 16 can be conveniently installed by setting the disassembly window. After adjusting the transition wheel 12 and the sleeve 16 on the wheel shaft 13 as required, open the fixed plate 7 and then Fit the transition wheel 12 and sleeve 16 into the inner cavity 3, and fix the fixing plate 7 on the disassembly window to complete.

As shown in FIG. 2, a protective layer is provided at the inner corner of the swinging plate 2 and the supporting plate 1, and the protective layer is a foldable and telescopic S-shaped plastic plate 10, where the user will touch the buttocks when lying down. Contact, the contact between the buttocks and the arc rack 11 can be avoided by the S-shaped plastic plate 10 .

In this solution, when not in use, the swing plate 2 can be folded upwards with the support plate 1, which is very convenient to carry.

As shown in Figure 4 and Figure 5, on the side of the support plate corresponding to the neck, there are a number of neck holes connected to the inner cavity, corresponding to the neck holes, there are buckles 21, which include massage buckles and breathable buckles , the massage button is provided with an air pressure window connecting the inside and outside, the air pressure window is provided with an elastic rubber layer 22, and the breathable button is provided with a vent hole 23.

When the linear paper strip reciprocates, it will drive the air pressure in the inner cavity to change. If the neck hole is fitted with a massage button, the air pressure will drive the elastic rubber layer 22 to move up or down. If the neck is in contact with the neck, the neck can be massaged. If the neck hole is matched with a ventilating socket, the change in internal air pressure will cause airflow to be ejected from the vent hole 23 and blow on the user's neck to cool down the user's heat. Through the buckle 21, on the one hand, it can adapt to the change of the inner cavity air pressure when the rack moves, and on the other hand, it can provide the function of massage or heat dissipation. The user can choose to set the massage button or the breathable button at the appropriate position according to the needs.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (6)

1. A lumbar traction device, characterized by comprising a support plate (1) and a swing plate (2);

the supporting plate (1) is used for supporting the back, and pulleys (6) are arranged at the bottom of the supporting plate (1);

the swinging plate (2) is arranged corresponding to the thigh, and the fixed end of the swinging plate (2) is hinged with the right end of the supporting plate (1);

the swing plate (2) is provided with a binding band (5) bound with the thigh;

a torsion spring is sleeved on a hinge core shaft at the fixed end of the swinging plate (2), two ends of the torsion spring are respectively fixed on the swinging plate (2) and the supporting plate (1), and when no external force is applied, the free end of the swinging plate (2) is obliquely and upwards placed by the torsion spring;

when no external force is applied, the included angle between the swinging plate (2) and the supporting plate (1) is 30-45 degrees;

the free end of the swinging plate (2) is connected with a contact strip (8) in an abutting mode, a spring pin is arranged in the swinging plate (2), and the outer end of the spring pin is led out from the free end of the swinging plate (2) and is connected with the contact strip (8);

an inner cavity (3) is formed in the supporting plate (1), a linear rack (4) and a rotating shaft are arranged in the inner cavity (3), the linear rack (4) is in sliding fit with the inner part of the inner cavity (3), the linear racks (4) are distributed leftwards from the right end of the supporting plate (1), the rotating shaft is vertically arranged in the inner cavity (3) relative to the linear rack (4), the rotating shaft is in rotating fit with the supporting plate (1), and a plurality of sections of cylindrical cams (20) are arranged on the rotating shaft;

the upper surface of the supporting plate (1) is provided with a sliding hole corresponding to the cylindrical cam (20), a sliding pin (9) is in sliding fit in the sliding hole, the lower end of the sliding pin (9) abuts against the side wall of the cylindrical cam (20), and in the rotating process of the cylindrical cam (20), the upper end of the sliding pin (9) enters and exits from the upper port of the sliding hole in a reciprocating mode;

a linkage gear (14) meshed with the linear rack (4) is coaxially arranged on the rotating shaft;

the stiff end of swing board (2) is equipped with the pitch arc rack coaxial with articulated dabber, the pitch arc rack through the transition gear train with sharp rack (4) meshing, swing board (2) wobbling in-process drives sharp rack (4) reciprocating sliding.

2. A lumbar traction device as set forth in claim 1, wherein: the lower end of the sliding pin (9) is provided with a ball socket, a ball (18) is rotationally matched in the ball socket, and the lower end of the ball (18) abuts against the side wall of the cylindrical cam (20).

3. A lumbar traction device as set forth in claim 2, wherein: the sliding pin (9) comprises an upper massage head (17) and a lower base (19), the ball socket is fixed at the lower end of the base (19), a ball (18) is matched in the ball socket in a rotating mode, the massage head (17) is in threaded coaxial butt joint with the base (19), and the base (19) is located in the sliding hole all the time in the process that the upper end of the sliding pin (9) enters and exits the sliding hole in a reciprocating mode.

4. A lumbar traction device as set forth in claim 1, wherein: the linear racks (4) are arranged in parallel, each linear rack (4) is independently and correspondingly provided with a group of rotating shafts, cylindrical cams (20) and sliding pins (9), the transition gear set comprises a wheel shaft (13), a plurality of transition wheels (12) and a barrel sleeve (16), an outer spline section corresponding to the end part of each linear rack (4) is arranged in the middle of the wheel shaft (13), two ends of the wheel shaft (13) are detachably matched in the supporting plate (1) in a rotating mode respectively, inner spline holes are formed in the outer spline sections corresponding to the axes of the transition wheels (12) and the barrel sleeve (16), the transition wheels (12) and/or the barrel sleeve (16) are in spline fit on the wheel shaft (13), and the space occupied by the transition wheels (12) and/or the barrel sleeve (16) on the wheel shaft (13) is arranged in one-to-one correspondence with the linear racks (4).

5. The lumbar traction device of claim 4, wherein: the side wall of the inner cavity (3) is provided with dismounting windows corresponding to two ends of the wheel shaft (13) respectively, a fixing plate (7) is arranged in the dismounting windows through bolts, and two ends of the wheel shaft (13) are in rotating fit with the fixing plate (7) through bearings.

6. A lumbar traction device as set forth in claim 1, wherein: the inner corners of the swing plate (2) and the supporting plate (1) are provided with protective layers, and the protective layers are foldable and telescopic S-shaped plastic plates (10).

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