An air bag structure suitable for dynamic training of balance assessment

Abstract

The present invention relates to an airbag structure suitable for dynamic training of balance assessment, comprising a connecting plate, an inner sleeve and an airbag; the connecting plate comprises an upper connecting plate and a bottom plate, an inner sleeve is arranged between the middle parts of the opposite sides of the upper connecting plate and the bottom plate, the inner sleeve comprises a sleeve body and a universal joint, the lower end of the sleeve body is connected to the bottom plate, and there is a gap between the upper end and the bottom surface of the upper connecting plate, an air pipe joint is arranged on the inner wall of the sleeve body, a lower connecting plate is arranged inside the sleeve body, a universal joint is arranged at the top of the lower connecting plate, and the upper end of the universal joint extends out of the sleeve body to connect the upper connecting plate; the airbag is sleeved outside the sleeve body, the airbag is an annular body with an inner ring opening and a cavity inside, and the inner ring opening of the airbag is abutted against the outer peripheral wall of the sleeve body to form a closed state. The present invention solves the problem that the damping of rehabilitation medical equipment using mechanical adjustment is stiff, which affects the dynamic test results.

Description

Technical Field

[0001] The invention relates to the technical field of rehabilitation medical equipment, and in particular to an air bag structure suitable for balance assessment dynamic training. Background Art

[0002] Rehabilitation training refers to physical activities that are beneficial to the recovery or improvement of function after an injury. Except for severe injuries that require rest and treatment, general injuries do not require complete cessation of physical exercises. Appropriate and scientific physical exercises play a positive role in the rapid healing of injuries and the promotion of functional recovery. Rehabilitation medical devices are important devices used in rehabilitation training to assess the user's physical condition and assist in training.

[0003] Balance training is rehabilitation training aimed at restoring or improving the body's balance ability, and assessing the user's balance ability during the balance training process. Currently, there are two main types of rehabilitation medical devices used for balance training: static training and dynamic training. Currently, the rehabilitation medical devices used for dynamic training use mechanical dynamic adjustment to achieve the purpose of dynamic training. When the user stands or sits on the medical device, the dynamic damping of the mechanical adjustment method uses mechanical damping, which is too rigid and affects the dynamic test results, which is not conducive to rehabilitation training. It will affect the user's training during use, and will also affect the rehabilitation medical device's assessment of the user's balance ability. Summary of the invention

[0004] In order to solve the problem that the damping of a rehabilitation medical device using mechanical adjustment is stiff and affects the dynamic test results, the present invention provides an airbag structure suitable for balance assessment dynamic training, which can make the rehabilitation medical device adjust smoothly and gently during dynamic testing, making the dynamic test results more accurate.

[0005] In order to solve the above problems, the technical solution of the present invention is:

[0006] An airbag structure suitable for balance assessment dynamic training, comprising a connecting plate, an inner sleeve and an airbag;

[0007] The connecting plate comprises an upper connecting plate and a bottom plate, an inner sleeve is arranged between the middle parts of the opposite sides of the upper connecting plate and the bottom plate, the inner sleeve comprises a sleeve body and a universal joint, the lower end of the sleeve body is connected to the bottom plate, and there is a gap between the upper end and the bottom surface of the upper connecting plate, an air pipe joint is arranged on the inner wall of the sleeve body, a lower connecting plate is arranged inside the sleeve body, a universal joint is arranged at the top end of the lower connecting plate, and the upper end of the universal joint extends out of the sleeve body to connect with the upper connecting plate;

[0008] The airbag is sleeved on the outside of the sleeve body. The airbag is an annular body with an inner ring opening and a cavity inside. The inner ring opening of the airbag is pressed against the outer peripheral wall of the sleeve body to form a closed state.

[0009] Furthermore, an airbag baffle is connected to the top end of the sleeve body, a baffle ring is sleeved on the outer periphery of the sleeve body in the airbag, and a vent hole is provided on the peripheral wall of the baffle ring, which is opposite to the output end of the trachea connector and penetrates the inner and outer peripheral walls of the baffle ring, and the vent hole is connected to the cavity of the airbag, and the upper edge of the airbag opening is extruded and connected to the outer peripheral wall of the sleeve body between the baffle ring and the airbag baffle through the baffle ring and the airbag baffle, and the lower edge of the airbag opening is extruded and connected to the outer peripheral wall of the sleeve body between the baffle ring and the bottom plate through the baffle ring and the bottom plate.

[0010] Furthermore, the sleeve body is a cylindrical body with openings at both ends, and the lower end of the sleeve body is connected to the base plate via a plurality of first connecting screws passing through the base plate and the sleeve body. The sleeve body includes an upper body and a lower body, the outer diameters of the upper body and the lower body are equal, the inner diameter of the upper body is larger than the inner diameter of the lower body, and the airbag baffle is an annular plate body with an outer diameter larger than the outer diameter of the sleeve body, and the inner diameter of the airbag baffle is equal to the inner diameter of the upper body.

[0011] Furthermore, an airbag partition sleeved on the outside of the universal joint is arranged on the bottom surface of the upper connecting plate, and the upper end of the universal joint is connected to the middle part of the upper connecting plate.

[0012] Furthermore, an annular groove which is recessed into the interior of the sleeve body and opens downward is arranged on the bottom surface of the sleeve body, an O-ring is arranged in the annular groove, and a lower connecting plate inside the sleeve body is fixed on the bottom plate.

[0013] Furthermore, the retaining ring includes an upper retaining ring and a lower retaining ring, both of which are semicircular annular bodies, and both end surfaces of the upper retaining ring are provided with L-shaped connecting grooves that are recessed toward the interior of the upper retaining ring and open outward, and both end surfaces of the lower retaining ring are provided with connecting blocks that extend outward and correspond to the connecting grooves, and the connecting blocks at both ends of the lower retaining ring extend into the connecting grooves at both ends of the upper retaining ring to form an upper retaining ring and a lower retaining ring that are buckled in a circular ring shape, and the connection between the upper retaining ring and the lower retaining ring is connected by a second connecting screw that passes through the connecting block and the connecting groove.

[0014] Furthermore, both ends of the upper retaining ring are provided with a first screw hole passing through the top surface of the upper retaining ring and the top surface of the connecting groove, and the connecting block of the lower retaining ring is provided with a second screw hole corresponding to the first screw hole above and below and passing through the upper and lower sides of the connecting block, and the top and bottom surfaces of the upper retaining ring and the lower retaining ring are both inclined surfaces with the inner edges higher than the outer edges.

[0015] Furthermore, the vent hole is a waist-shaped through hole arranged on the lower retaining ring and along the circumferential direction of the lower retaining ring.

[0016] Furthermore, the O-ring is an annular body made of elastic rubber, and the airbag is a hollow torus body made of elastic rubber.

[0017] Furthermore, the bottom plate, upper connecting plate and airbag partition are all circular plates, the diameter of the airbag partition is smaller than the diameter of the upper connecting plate, the upper connecting plate is evenly distributed with through holes, the periphery of the bottom plate is evenly distributed with arc-shaped openings facing outward, and the lower connecting plate is a plate-like body with mounting holes inside.

[0018] Through the above technical solution, the beneficial effects of the present invention are:

[0019] When the present invention is in use, the upper edge of the airbag opening is squeezed and connected to the outer peripheral wall of the sleeve cylinder between the baffle ring and the airbag baffle through the baffle ring and the airbag baffle, and the lower edge of the airbag opening is squeezed and connected to the outer peripheral wall of the sleeve cylinder between the baffle ring and the bottom plate. The airbag is firmly fixed on the outside of the sleeve cylinder, and gas is input through the trachea joint. The gas output by the trachea joint enters the airbag through the vent to expand the airbag. The amount of gas input through the trachea joint is controlled to control the size of the airbag expansion. During dynamic testing, the upper connecting plate connected via the universal joint swings, and the upper connecting plate is gently damped by the airbag during the swinging process, so that the upper connecting plate will not produce a sense of frustration, making the dynamic test result more accurate. The present invention solves the problem that the damping of rehabilitation medical equipment using mechanical adjustment is stiff, which affects the dynamic test result. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Figure 2 It is a front view of the present invention;

[0022] Figure 3 is a longitudinal sectional view of the present invention;

[0023] Figure 4 It is a schematic structural diagram of the connection between the sleeve cylinder, the airbag baffle and the baffle ring of the present invention;

[0024] Figure 5 It is a structural schematic diagram of the upper retaining ring of the present invention;

[0025] Figure 6 It is a structural schematic diagram of the lower retaining ring of the present invention.

[0026] The numbers in the accompanying drawings are: 1 is a base plate, 2 is an airbag, 3 is a universal joint, 4 is an upper connecting plate, 5 is an airbag partition, 6 is a lower cylinder, 7 is a lower baffle ring, 8 is an upper baffle ring, 9 is an airbag baffle, 10 is a first screw hole, 11 is an upper cylinder, 12 is a second screw hole, 13 is a lower connecting plate, 14 is a first connecting screw, 15 is an O-ring, 16 is an annular groove, 17 is a trachea joint, 18 is a second connecting screw, 19 is a connecting groove, 20 is a connecting block, and 21 is a vent. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments:

[0028] like Figure 1 to Figure 6 As shown, an airbag structure suitable for balance assessment dynamic training includes a connecting plate, an inner sleeve and an airbag 2;

[0029] The connecting plate includes an upper connecting plate 4 and a bottom plate 1, an inner sleeve is arranged between the middle of the opposite sides of the upper connecting plate 4 and the bottom plate 1, the inner sleeve includes a sleeve body and a universal joint 3, the lower end of the sleeve body is connected to the bottom plate 1, and there is a gap between the upper end and the bottom surface of the upper connecting plate 4, an air pipe joint 17 is arranged on the inner wall of the sleeve body, a lower connecting plate 13 is arranged inside the sleeve body, a universal joint 3 is arranged at the top end of the lower connecting plate 13, and the upper end of the universal joint 3 extends out of the sleeve body to connect to the upper connecting plate 4;

[0030] The airbag 2 is sleeved on the outside of the sleeve body. The airbag 2 is an annular body with an inner ring opening and a cavity inside. The inner ring opening of the airbag 2 is pressed against the outer peripheral wall of the sleeve body to form a closed state.

[0031] An airbag baffle 9 is connected to the top end of the sleeve body, and the baffle ring is sleeved on the outer periphery of the sleeve body in the airbag 2. A vent 21 is provided on the peripheral wall of the baffle ring, which is opposite to the output end of the trachea connector 17 and penetrates the inner and outer peripheral walls of the baffle ring. The vent 21 is connected to the cavity of the airbag 2. The upper edge of the opening of the airbag 2 is squeezed and connected to the outer peripheral wall of the sleeve body between the baffle ring and the airbag baffle 9 through the baffle ring and the airbag baffle 9, and the lower edge of the opening of the airbag 2 is squeezed and connected to the outer peripheral wall of the sleeve body between the baffle ring and the bottom plate 1 through the baffle ring and the bottom plate 1.

[0032] The sleeve cylinder is a cylindrical body with openings at both ends. The lower end of the sleeve cylinder is connected to the base plate 1 via multiple first connecting screws 14 that pass through the base plate 1 and the sleeve cylinder. The sleeve cylinder includes an upper cylinder 11 and a lower cylinder 6. The outer diameters of the upper cylinder 11 and the lower cylinder 6 are equal, and the inner diameter of the upper cylinder 11 is larger than the inner diameter of the lower cylinder 6. The airbag baffle 9 is an annular plate with an outer diameter larger than the outer diameter of the sleeve cylinder, and the inner diameter of the airbag baffle 9 is equal to the inner diameter of the upper cylinder 11.

[0033] An airbag partition plate 5 sleeved on the outside of the universal joint 3 is arranged on the bottom surface of the upper connecting plate 4 , and the upper end of the universal joint 3 is connected to the middle part of the upper connecting plate 4 .

[0034] The bottom surface of the sleeve body is provided with an annular groove 16 which is recessed into the inside of the sleeve body and opens downwards. An O-ring 15 is provided in the annular groove 16 . The lower connecting plate 13 inside the sleeve body is fixed on the bottom plate 1 .

[0035] The retaining ring comprises an upper retaining ring 8 and a lower retaining ring 7, both of which are semicircular annular bodies. Both end surfaces of the upper retaining ring 8 are provided with L-shaped connecting grooves 19 which are recessed toward the interior of the upper retaining ring 8 and open outwards. Both end surfaces of the lower retaining ring 7 are provided with connecting blocks 20 which extend outwards and correspond to the connecting grooves 19. The connecting blocks 20 at both ends of the lower retaining ring 7 extend into the connecting grooves 19 at both ends of the upper retaining ring 8 to form a circular ring-shaped upper retaining ring 8 and a lower retaining ring 7 which are buckled together. The connection between the upper retaining ring 8 and the lower retaining ring 7 is connected by a second connecting screw 18 which passes through the connecting block 20 and the connecting groove 19.

[0036] Both ends of the upper retaining ring 8 are provided with a first screw hole 10 that passes through the top surface of the upper retaining ring 8 and the top surface of the connecting groove 19, and the connecting block 20 of the lower retaining ring 7 is provided with a second screw hole 12 that corresponds to the first screw hole 10 and passes through the upper and lower sides of the connecting block 20. The top and bottom surfaces of the upper retaining ring 8 and the lower retaining ring 7 are both inclined surfaces with the inner edges higher than the outer edges.

[0037] The vent hole 21 is a waist-shaped through hole arranged on the lower retaining ring 7 and arranged along the circumferential direction of the lower retaining ring 7 .

[0038] The O-ring 15 is an annular body made of elastic rubber, and the airbag 2 is a hollow annular body made of elastic rubber.

[0039] The bottom plate 1, the upper connecting plate 4 and the airbag partition 5 are all circular plates. The diameter of the airbag partition 5 is smaller than that of the upper connecting plate 4. The upper connecting plate 4 is evenly distributed with through holes. The periphery of the bottom plate 1 is evenly distributed with arc-shaped openings facing outward. The lower connecting plate 13 is a plate-like body with mounting holes therein.

[0040] When in use, the upper edge of the airbag opening is squeezed and connected to the outer peripheral wall of the sleeve cylinder between the baffle ring and the airbag baffle through the baffle ring and the airbag baffle, and the lower edge of the airbag opening is squeezed and connected to the outer peripheral wall of the sleeve cylinder between the baffle ring and the bottom plate. The airbag is firmly fixed on the outside of the sleeve cylinder, and gas is input through the trachea joint. The gas output by the trachea joint enters the airbag through the vent to expand the airbag. The amount of gas input through the trachea joint is controlled to control the size of the airbag expansion. During dynamic testing, the upper connecting plate connected by the universal joint swings, and the upper connecting plate is gently damped by the airbag during the swinging process, so that the upper connecting plate will not produce a sense of frustration, making the dynamic test results more accurate. The present invention solves the problem that the damping of rehabilitation medical equipment using mechanical adjustment is stiff, which affects the dynamic test results.

[0041] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments. Without violating the spirit of the present invention, that is, within the scope of disclosure, any multiple equivalent or equivalent modifications or replacements of the technical solutions of the invention belong to the protection scope of the present invention.

Claims

1. An airbag structure suitable for balance assessment dynamic training, characterized in that: It includes a connecting plate, an inner sleeve and an air bag (2); The connecting plate comprises an upper connecting plate (4) and a bottom plate (1); an inner sleeve is arranged between the middle parts of the opposite sides of the upper connecting plate (4) and the bottom plate (1); the inner sleeve comprises a sleeve body and a universal joint (3); the lower end of the sleeve body is connected to the top of the bottom plate (1); a gap is formed between the upper end and the bottom surface of the upper connecting plate (4); an air pipe joint (17) is arranged on the inner wall of the sleeve body; a lower connecting plate (13) is arranged inside the sleeve body; a universal joint (3) is arranged at the top end of the lower connecting plate (13); the upper end of the universal joint (3) extends out of the sleeve body to connect to the upper connecting plate (4); The airbag (2) is sleeved on the outside of the sleeve body. The airbag (2) is an annular body with an inner ring opening and a cavity inside. The inner ring opening of the airbag (2) is abutted against the outer peripheral wall of the sleeve body to form a closed state.

2. The airbag structure suitable for balance assessment dynamic training according to claim 1, characterized in that: The top end of the sleeve body is connected to an airbag baffle (9), a baffle ring is sleeved on the outer periphery of the sleeve body in the airbag (2), a vent hole (21) is provided on the peripheral wall of the baffle ring and is opposite to the output end of the air pipe joint (17) and penetrates the inner and outer peripheral walls of the baffle ring, the vent hole (21) is communicated with the cavity of the airbag (2), the upper edge of the opening of the airbag (2) is connected to the outer peripheral wall of the sleeve body between the baffle ring and the airbag baffle (9) through the baffle ring and the airbag baffle (9), and the lower edge of the opening of the airbag (2) is connected to the outer peripheral wall of the sleeve body between the baffle ring and the bottom plate (1) through the baffle ring and the bottom plate (1).

3. The airbag structure suitable for balance assessment dynamic training according to claim 2, characterized in that: The sleeve body is a cylindrical body with openings at both ends. The lower end of the sleeve body is connected to the base plate (1) via a plurality of first connecting screws (14) that pass through the base plate (1) and the sleeve body. The sleeve body comprises an upper body (11) and a lower body (6). The outer diameters of the upper body (11) and the lower body (6) are equal. The inner diameter of the upper body (11) is greater than the inner diameter of the lower body (6). The airbag baffle (9) is an annular plate body with an outer diameter greater than the outer diameter of the sleeve body. The inner diameter of the airbag baffle (9) is equal to the inner diameter of the upper body (11).

4. The airbag structure suitable for balance assessment dynamic training according to claim 1, characterized in that: An airbag partition (5) sleeved on the outside of the universal joint (3) is provided on the bottom surface of the upper connecting plate (4), and the upper end of the universal joint (3) is connected to the middle part of the upper connecting plate (4).

5. The airbag structure suitable for balance assessment dynamic training according to claim 1, characterized in that: The bottom surface of the sleeve body is provided with an annular groove (16) which is recessed into the interior of the sleeve body and opens downwards, an O-ring (15) is provided in the annular groove (16), and a lower connecting plate (13) inside the sleeve body is fixed on the bottom plate (1).

6. The airbag structure suitable for balance assessment dynamic training according to claim 2, characterized in that: The retaining ring comprises an upper retaining ring (8) and a lower retaining ring (7), both of which are semicircular annular bodies, and both end surfaces of the upper retaining ring (8) are provided with L-shaped connecting grooves (19) which are recessed inside the upper retaining ring (8) and open outward, and both end surfaces of the lower retaining ring (7) are provided with connecting blocks (20) which extend outward and match the connecting grooves (19), and the connecting blocks (20) at both ends of the lower retaining ring (7) extend into the connecting grooves (19) at both ends of the upper retaining ring (8) to form a circular ring shape in which the upper retaining ring (8) and the lower retaining ring (7) are buckled, and the connection between the upper retaining ring (8) and the lower retaining ring (7) is connected via a second connecting screw (18) which passes through the connecting block (20) and the connecting groove (19).

7. The airbag structure suitable for balance assessment dynamic training according to claim 6, characterized in that: Both ends of the upper retaining ring (8) are provided with first screw holes (10) penetrating the top surface of the upper retaining ring (8) and the top surface of the connecting groove (19); the connecting block (20) of the lower retaining ring (7) is provided with second screw holes (12) corresponding to the first screw holes (10) and penetrating the upper and lower surfaces of the connecting block (20); the top surfaces and bottom surfaces of the upper retaining ring (8) and the lower retaining ring (7) are both inclined surfaces with inner edges higher than outer edges.

8. The airbag structure suitable for balance assessment dynamic training according to claim 6, characterized in that: The vent hole (21) is a waist-shaped through hole arranged on the lower retaining ring (7) and arranged along the circumferential direction of the lower retaining ring (7).

9. The airbag structure suitable for balance assessment dynamic training according to claim 5, characterized in that: The O-ring (15) is an annular body made of elastic rubber, and the airbag (2) is a hollow annular body made of elastic rubber.

10. The airbag structure suitable for balance assessment dynamic training according to claim 4, characterized in that: The bottom plate (1), the upper connecting plate (4) and the airbag partition plate (5) are all circular plates. The diameter of the airbag partition plate (5) is smaller than the diameter of the upper connecting plate (4). Through holes are evenly distributed on the upper connecting plate (4). Arc-shaped openings opening outward are evenly distributed on the periphery of the bottom plate (1). The lower connecting plate (13) is a plate-shaped body having a mounting hole therein.

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