A pulling device for frozen shoulder exercise

Abstract

The present invention discloses a traction device for frozen shoulder exercise, comprising a shell, a shell cover, a rotary cover, an extrusion block and a limit rod. The shell cover is fixedly installed on the upper surface of the shell by bolts, and a rotatable rotary cover is embedded in the upper surface of the shell cover. The outer surface of the resistance band is printed with scale marks. A rotatable gripping ring is installed at one end of the rotary seat, and a slide is fixedly provided on the side surface of the gripping ring on one side. A self-resetting switch is installed on the side surface of the gripping ring where the slide is located, and a sliding fitting plate is connected to one end of the slide. The traction device for frozen shoulder exercise unlocks the center gear by rotating the rotary cover to squeeze the center plate to slide downward, so that the user can pull the resistance band to a suitable length for exercise. By printing scale marks on the resistance band, different patients can adjust the length of the resistance band according to their own conditions.

Description

Technical Field

[0001] The invention relates to the technical field of rehabilitation exercise equipment, in particular to a pulling device for frozen shoulder exercise. Background Art

[0002] When patients suffer from frozen shoulder symptoms and exhibit symptoms such as shoulder pain, immobility, and inability to lift their shoulders, they need to be guided in targeted rehabilitation exercises. During the exercise, they need to perform rehabilitation exercises such as abduction, external rotation, and internal rotation to speed up recovery. When patients perform back-rubbing exercises, they need to use a towel for stretching. They hold the two ends of the towel from behind their backs with both hands, first keep the towel horizontal, and then use their healthy hand to pull the towel upward to move the affected limb to the opposite side. Repeat the exercise several times. If the symptoms improve, the intensity of the exercise can be increased by placing the towel on the healthy shoulder and holding the two ends of the towel with both hands to stretch. However, when using a towel for exercise, the distance between each person's hands is different, and the shoulder stretch degree is also different. The same length of towel cannot meet everyone's needs. In addition, the two ends of the towel are easy to slip when held in the hands. Since it is impossible to mark the towel each time during exercise, the position of holding the towel needs to be constantly adjusted to find the appropriate stretching posture. This not only wastes time but also reduces the exercise effect on the affected limb.

[0003] In view of the above problems, it is urgent to carry out innovative design based on the original frozen shoulder exercise traction device. Summary of the Invention

[0004] The object of the present invention is to provide a stretching device for frozen shoulder exercise, so as to solve the problems of inconvenience in holding and the need to constantly adjust and search for the holding position raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a traction device for frozen shoulder exercise, comprising a shell, a shell cover, a rotary cover, an extrusion block and a limit rod, the upper surface of the shell is fixedly installed with the shell cover by bolts, the upper surface of the shell cover is embedded with a rotatable rotary cover, the lower surface of the rotary cover is fixedly provided with an extrusion block, the upper end of the extrusion block is internally installed with a sliding limit rod, the inner surface of the shell cover is provided with a limit hole, the inner surface of the shell cover is fixedly installed with a micro electric push rod, and the lower part of the micro electric push rod passes through the lower surface of the shell cover and is connected to a rotating ball, the lower surface of the shell cover is provided with a clamping hole, the inner bottom surface of the shell is provided with a center gear, and the upper surface of the center gear is fixedly provided with a center column, the upper end of the center column is connected to a sliding center plate, the upper surface of the center plate is fixedly provided with a clamping rod, the upper surface of the center plate is fixedly provided with a contact block, the lower end side surface of the center plate is fixedly provided with a contact plate, Two rotating rods are fixedly installed on the lower surface of the gear, and the center gear is rotatably connected to the outer shell through the rotating rod, the lower surface of the center gear is connected to one end of a torsion spring, and the other end of the torsion spring is fixedly connected to the inner bottom surface of the outer shell, the inner surface of the outer shell is installed with a rotating driven gear, and the end of the driven gear facing the inside of the outer shell is fixedly provided with a winding shaft, a micro motor is fixedly installed inside the side surface of the outer shell, and one end of the output shaft of the micro motor is fixedly connected to the rotating shaft of the driven gear on one side, the side surface of the outer shell is penetrated by one end of the tension band, one end of the tension band is fixedly connected to the outer surface of the winding shaft, and the other end of the tension band penetrates the side surface of the outer shell and is fixedly connected to a swivel seat, the outer surface of the tension band is printed with scale marks, a rotating holding ring is installed on one end of the swivel seat, and a slide is fixedly provided on the side surface slide of the holding ring on one side, and a self-resetting switch is installed on the side surface of the holding ring where the slide is located, and one end of the slide is connected to a sliding fitting plate.

[0006] Preferably, the shell cover and the rotating cover are rotatably connected, and a spring is connected between the rotating cover and the limiting rod, the lower end of the limiting rod passes through the side surface of the rotating cover, and the upper end of the limiting rod passes through the upper surface of the rotating cover, and the limiting rod is engaged with the limiting hole.

[0007] By adopting the above technical solution, the engagement between the limiting rod and the limiting hole is utilized to prevent the rotating cover from rotating arbitrarily during the stretching exercise.

[0008] Preferably, the upper end of the extrusion block is a frustum with a larger diameter, and the extrusion block and the contact block are staggered.

[0009] By adopting the above technical solution, the inclined surface of the truncated cone of the extrusion block is utilized to squeeze the contact block during the rotation process, so that the contact block can drive the center plate to slide.

[0010] Preferably, the lower end of the micro electric push rod is in contact with the upper surface of the contact plate through a ball, and the contact plate is configured as a ring concentric with the center plate.

[0011] By adopting the above technical solution, the contact plate can rotate along with the center plate while maintaining contact with one end of the micro electric push rod through the ball bearing.

[0012] Preferably, the clamping holes are engaged with the clamping rods, and the clamping rods are evenly distributed on the upper surface of the center plate, and a spring is connected between the center plate and the center column.

[0013] By adopting the above technical solution, the center plate can limit the center gear through the engagement of the clamping rod and the clamping hole under the support of the spring to prevent the center gear from rotating.

[0014] Preferably, the driven gear is meshed with the central gear, and the driven gear is concentric with the winding shaft.

[0015] By adopting the above technical solution, the central gear can drive the reel to rotate through the driven gear to retract and extend the tension belt.

[0016] Preferably, a rotating roller is installed inside the side surface of the shell penetrated by the tension belt, and a gap is left between the two rollers on the same side, and the gap between the two rollers on the same side is penetrated by the tension belt.

[0017] By adopting the above technical solution, the two rollers can prevent the tension belt from twisting.

[0018] Preferably, the two rollers on the same side are symmetrically arranged with respect to the tension belt on that side, and the two rollers are rotationally connected to the shell in a tight fit, and the two rollers on the same side are respectively fitted with the upper and lower surfaces of the tension belt on that side.

[0019] By adopting the above technical solution, the roller can contact the surface of the tension belt during the sliding process of the tension belt, and prevent the tension belt from continuing to roll into the shell through contact with the tension belt when the tension belt is twisted.

[0020] Preferably, a spring is connected between the bonding plate and the gripping ring, and an outer surface of the bonding plate facing the interior of the sliding seat is bonded to the self-resetting switch.

[0021] By adopting the above technical solution, the laminating plate can slide and trigger the self-resetting switch when it is pressed.

[0022] Compared with the prior art, the beneficial effects of the present invention are: the pulling device for frozen shoulder exercise:

[0023] 1. By rotating the cover and squeezing the center plate downward, the center gear is unlocked, allowing the user to pull the resistance band to the appropriate length for exercise. The printed scale marks on the resistance band allow different patients to adjust the length of the resistance band according to their own conditions.

[0024] 2. The center column supports the center plate, which can be locked with the clamping hole through the clamping rod, so that the length of the tension band will not change during the patient's traction process. When rewinding, the tension band can be automatically retracted by squeezing the center plate, which is convenient for patients to use.

[0025] 3. When the patient is unable to pull the affected limb due to fear of pain, the bonding plate is squeezed, so that the bonding plate can trigger the self-reset switch, so that the micro motor drives the driven gear to reel the tension band. Pushing the bonding plate toward the back of the patient's palm also prevents the patient from subconsciously tightening the tension band when pulling in pain, which may cause the tension band to be over-tightened. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall top-sectional structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the overall top view of the present invention;

[0028] Figure 3 This is a schematic diagram of the overall front cross-sectional structure of the present invention;

[0029] Figure 4 This is a schematic top cross-sectional view of the connection between the slide and the laminating plate of the present invention;

[0030] Figure 5 This is a schematic top cross-sectional view of the connection between the center plate and the clamping rod of the present invention;

[0031] Figure 6 For the present invention Figure 3 Enlarged structural diagram at point A in the middle.

[0032] In the figure: 1. Shell; 2. Shell cover; 3. Rotating cover; 4. Extrusion block; 5. Limit rod; 6. Limit hole; 7. Micro electric push rod; 8. Ball bearing; 9. Clamping hole; 10. Center gear; 11. Center column; 12. Center plate; 13. Clamping rod; 14. Contact block; 15. Contact plate; 16. Rotating rod; 17. Torsion spring; 18. Driven gear; 19. Winding shaft; 20. Micro motor; 21. Tension belt; 22. Roller; 23. Rotating seat; 24. Holding ring; 25. Sliding seat; 26. Self-reset switch; 27. Laminating plate. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] See also Figure 1-6 The present invention provides a technical solution: a traction device for frozen shoulder exercise, comprising a shell 1, a shell cover 2, a rotating cover 3, an extrusion block 4, a limiting rod 5, a limiting hole 6, a micro electric push rod 7, a ball 8, a clamping hole 9, a central gear 10, a central column 11, a central plate 12, a clamping rod 13, a contact block 14, a contact plate 15, a rotating rod 16, a torsion spring 17, a driven gear 18, a winding shaft 19, a micro motor 20, a tension belt 21, a roller 22, a rotating seat 23, a grip ring 24, a slide 25, a self-resetting switch 26 and a bonding plate 27. The upper surface of the shell 1 is The shell cover 2 is fixed with bolts, and a rotating cover 3 is embedded on the upper surface of the shell cover 2. An extrusion block 4 is fixed on the lower surface of the rotary cover 3. A sliding limit rod 5 is installed inside the upper end of the extrusion block 4. A limit hole 6 is provided on the inner surface of the shell cover 2. A micro electric push rod 7 is fixedly installed inside the shell cover 2, and the lower part of the micro electric push rod 7 passes through the lower surface of the shell cover 2 and is connected to a rotating ball 8. A card hole 9 is provided on the lower surface of the shell cover 2. A central gear 10 is provided on the inner bottom surface of the shell 1, and a central column 11 is fixed on the upper surface of the central gear 10. The upper end of the column 11 is connected to a sliding center plate 12, a card rod 13 is fixed on the top of the center plate 12, a contact block 14 is fixed on the upper surface of the center plate 12, and a contact plate 15 is fixed on the lower side surface of the center plate 12. The shell cover 2 and the rotating cover 3 are rotatably connected, and a spring is connected between the rotating cover 3 and the limiting rod 5. The lower end of the limiting rod 5 passes through the side surface of the rotating cover 3, and the upper end of the limiting rod 5 passes through the upper surface of the rotating cover 3, and the limiting rod 5 is engaged with the limiting hole 6. The upper end of the extrusion block 4 is a frustum with a larger diameter, and the extrusion block 4 and the contact block 14 are staggered. The lower end of the micro electric push rod 7 is fitted with the upper surface of the contact plate 15 through the ball 8, and the contact plate 15 is set as a ring concentric with the center plate 12, the card hole 9 is connected with the card rod 13, and the card rod 13 is evenly distributed on the upper surface of the center plate 12, and a spring is connected between the center plate 12 and the center column 11. The center plate 12 is squeezed downward by the rotating cover 3 and the micro electric push rod 7 respectively to unlock the center gear 10, so that the center gear 10 can rotate intermittently and continuously to meet the requirements of pulling the tension belt 21 under different circumstances.

[0035] Two rotating rods 16 are fixedly installed on the lower surface of the central gear 10, and the central gear 10 is rotatably connected to the housing 1 through the rotating rod 16. One end of a torsion spring 17 is connected to the lower surface of the central gear 10, and the other end of the torsion spring 17 is fixedly connected to the inner bottom surface of the housing 1. A rotating driven gear 18 is installed on the inner surface of the housing 1, and a winding shaft 19 is fixedly provided on the end of the driven gear 18 facing the inside of the housing 1. A micro motor 20 is fixedly installed inside the side surface of the housing 1, and the micro motor One end of the output shaft of 20 is fixedly connected to the rotating shaft of the driven gear 18 on one side, and the side surface of the shell 1 is penetrated by one end of the tension belt 21, and one end of the tension belt 21 is fixedly connected to the outer surface of the winding shaft 19, and the other end of the tension belt 21 penetrates the side surface of the shell 1 and is fixedly connected to the rotating seat 23. The outer surface of the tension belt 21 is printed with scale marks, and one end of the rotating seat 23 is installed with a rotating holding ring 24. The side surface of the holding ring 24 on one side is fixedly provided with a slide 25, and the slide 25 is fixedly provided with a slide 25. A self-resetting switch 26 is installed on the side surface of the grip ring 24, and a sliding fitting plate 27 is connected to one end of the slide 25. The driven gear 18 is meshed with the central gear 10, and the driven gear 18 is concentric with the reel 19. A rotating roller 22 is installed inside the side surface of the housing 1 penetrated by the tension belt 21, and a gap is left between the two rollers 22 on the same side, and the gap between the two rollers 22 on the same side is penetrated by the tension belt 21. The two rollers 22 on the same side are opposite to the tension belt 21 on that side. It is set up, and the two rollers 22 are tightly fitted and rotatably connected to the shell 1, and the two rollers 22 on the same side are respectively fitted with the upper and lower surfaces of the tension belt 21 on that side, a spring is connected between the fitting plate 27 and the holding ring 24, and the outer surface of the fitting plate 27 facing the inside of the slide 25 is fitted with the self-resetting switch 26, and the synchronization of the retraction and extension of the tension belts 21 on both sides is achieved through the transmission of the center gear 10, and the roller 22 can keep the pulled tension belt 21 from shrinking into the inside of the shell 1.

[0036] Working principle: When using the traction device for frozen shoulder exercise, first, when the tension band 21 needs to be pulled out, start the micro-electric push rod 7, so that the micro-electric push rod 7 pushes the center plate 12 down through the ball 8 and the contact plate 15, and the center plate 12 drives the clamping rod 13 to disengage from the clamping hole 9. At this time, pull the gripping ring 24 to pull the tension band 21 out of the shell 1. The winding shaft 19 on one side drives the driven gear 18 on this side to rotate under the action of the pulling out of the tension band 21, and the driven gear 18 on this side is engaged with the center gear 10, so that the center gear 10 rotates inside the shell 1 through the rotating rod 16, and the center gear 10 drives the winding shaft 19 on the other side to unwind synchronously by engaging with the driven gear 18 on the other side. At this time, the tension belt 21 on the other side is brought out under the action of the gravity of the naturally hanging gripping ring 24. During the process, the roller 22 always keeps the tension belt 21 limited to prevent the tension belt 21 from twisting. After observing the scale on the surface of the tension belt 21 and confirming that the length of the tension belt 21 is appropriate, the micro-electric push rod 7 is closed. At this time, the center plate 12 slides up under the support of the spring between it and the center column 11 and engages with the card hole 9 through the card rod 13. At this time, the limit of the center gear 10 is restored to ensure that the torsion spring 17 at the lower end of the center gear 10 will not drive the center gear 10 to rotate and cause the tension belt 21 to retract. During use, the gripping ring 24 can rotate relative to the swivel seat 23 to ensure that the patient can rotate his wrist at will during the traction process;

[0037] During the exercise, when the patient is unable to pull hard, he pushes the bonding plate 27 on the inner side of the grip ring 24 on one side by turning his fingers outward. The bonding plate 27 slides toward the inside of the slide 25 and squeezes the self-resetting switch 26. The self-resetting switch 26 is triggered to drive the micromotor 20 and the micro-electric push rod 7 to start. The micro-electric push rod 7 pushes the contact plate 15 so that the central gear 10 is unlocked and can rotate. The micromotor 20 drives the driven gear 18 on one side to rotate and slowly rewinds the tension belts 21 on both sides at the same time, so as to achieve the purpose of assisting the patient to pull. When the patient's affected part hurts, the patient subconsciously clenches his palm to release the pressure on the bonding plate 27. At this time, the bonding plate 27 slides under the support of the spring to release the contact with the self-resetting switch 26. The self-resetting switch 26 automatically pops up and resets, so that the micromotor 20 and the micro-electric push rod 7 are turned off, and the center plate 12 resumes the engagement with the clamping hole 9 and the shell cover 2 under the support of the spring;

[0038] After the exercise is completed, the limit rod 5 is pulled to disengage the limit rod 5 from the engagement with the limit hole 6. At this time, the rotating cover 3 is rotated, and the extrusion block 4 rotates with the rotating cover 3 through its tapered side surface to squeeze the contact block 14, so that the center plate 12 slides downward to unlock the center gear 10. At this time, the center gear 10 rotates under the drive of the torsion spring 17, and the driven gear 18 rotates with the center gear 10 and rewinds the tension belt 21 through the reel 19. At this time, the contact block 14 and the center plate 12 rotate with the center column 11 on the upper surface of the center gear 10. When rotating, the contact block 14 loses the squeezing of the squeezing block 4 and slides up under the support of the spring between the center column 11 and the center plate 12, restoring the lock on the center gear 10. During the heavy load process in the above process, the tension belt 21 is slowly retracted to avoid the situation where the center gear 10 is completely unlocked and the center gear 10 rotates rapidly under the drive of the torsion spring 17, causing the gripping ring 24 to swing and injure the patient. When rapid recovery is required, it is only necessary to start the micro electric push rod 7 separately to push the center plate 12 down.

[0039] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A pulling device for frozen shoulder exercise, comprising a housing (1), a housing cover (2), a rotating cover (3), an extrusion block (4) and a limiting rod (5), characterized in that: The upper surface of the shell (1) is fixedly mounted with a shell cover (2) by means of bolts, the upper surface of the shell cover (2) is embedded with a rotatable rotary cover (3), the lower surface of the rotary cover (3) is fixedly provided with an extrusion block (4), the upper end of the extrusion block (4) is internally mounted with a sliding limit rod (5), the inner surface of the shell cover (2) is provided with a limit hole (6), the inner surface of the shell cover (2) is fixedly mounted with a micro electric push rod (7), and the lower portion of the micro electric push rod (7) passes through the lower surface of the shell cover (2) and is connected with a rotatable ball (8), the lower surface of the shell cover (2) is provided with a clamping hole (9), The inner bottom surface of the housing (1) is provided with a central gear (10), and the upper surface of the central gear (10) is fixedly provided with a central column (11), the upper end of the central column (11) is connected with a sliding central plate (12), the upper surface of the central plate (12) is fixedly provided with a clamping rod (13), the upper surface of the central plate (12) is fixedly provided with a contact block (14), the lower end side surface of the central plate (12) is fixedly provided with a contact plate (15), the lower surface of the central gear (10) is fixedly provided with two rotating rods (16), and the central gear (10) is connected to the housing (1) through the rotating rods (16). ) is rotatably connected, the lower surface of the central gear (10) is connected to one end of a torsion spring (17), and the other end of the torsion spring (17) is fixedly connected to the inner bottom surface of the housing (1), the inner surface of the housing (1) is installed with a rotating driven gear (18), and the end of the driven gear (18) facing the inside of the housing (1) is fixedly provided with a winding shaft (19), the side surface of the housing (1) is fixedly installed with a micro motor (20), and one end of the output shaft of the micro motor (20) is fixedly connected to the rotating shaft of the driven gear (18) on one side, and the side surface of the housing (1) is tensioned by one end of a tension belt (21) One end of the tension belt (21) is fixedly connected to the outer surface of the winding shaft (19), and the other end of the tension belt (21) passes through the side surface of the shell (1) and is fixedly connected to a swivel seat (23). The outer surface of the tension belt (21) is printed with scale marks. One end of the swivel seat (23) is installed with a rotating holding ring (24). A slide seat (25) is fixedly provided on the side surface of the holding ring (24) on one side. A self-resetting switch (26) is installed on the side surface of the holding ring (24) where the slide seat (25) is located. One end of the slide seat (25) is connected to a sliding bonding plate (27).

2. A stretching device for frozen shoulder exercise according to claim 1, characterized in that: The shell cover (2) and the rotating cover (3) are rotatably connected, and a spring is connected between the rotating cover (3) and the limiting rod (5). The lower end of the limiting rod (5) passes through the side surface of the rotating cover (3), and the upper end of the limiting rod (5) passes through the upper surface of the rotating cover (3), and the limiting rod (5) is engaged with the limiting hole (6).

3. The stretching device for frozen shoulder exercise according to claim 1, characterized in that: The upper end of the extrusion block (4) is a truncated cone with a larger diameter, and the extrusion block (4) and the contact block (14) are staggered.

4. The stretching device for frozen shoulder exercise according to claim 1, characterized in that: The lower end of the micro electric push rod (7) is fitted to the upper surface of the contact plate (15) via a ball (8), and the contact plate (15) is configured as a ring concentric with the center plate (12).

5. The stretching device for frozen shoulder exercise according to claim 1, characterized in that: The clamping hole (9) is clamped and connected with the clamping rod (13), and the clamping rod (13) is evenly distributed on the upper surface of the center plate (12), and a spring is connected between the center plate (12) and the center column (11).

6. The stretching device for frozen shoulder exercise according to claim 1, characterized in that: The driven gear (18) is meshed and connected with the central gear (10), and the driven gear (18) and the winding shaft (19) are designed to be concentric.

7. The stretching device for frozen shoulder exercise according to claim 1, characterized in that: A rotating roller (22) is installed inside the side surface of the shell (1) penetrated by the tension belt (21), and a gap is left between the two rollers (22) on the same side, and the gap between the two rollers (22) on the same side is penetrated by the tension belt (21).

8. The stretching device for frozen shoulder exercise according to claim 7, characterized in that: The two rollers (22) on the same side are symmetrically arranged with respect to the tension belt (21) on that side, and the two rollers (22) are rotationally connected with the housing (1) in a tight fit, and the two rollers (22) on the same side are respectively fitted with the upper and lower surfaces of the tension belt (21) on that side.

9. The stretching device for frozen shoulder exercise according to claim 1, characterized in that: A spring is connected between the laminating plate (27) and the gripping ring (24), and an outer surface of the laminating plate (27) facing the inside of the sliding seat (25) is in contact with the self-resetting switch (26).

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