Back corrector

Abstract

The utility model provides a back corrector which comprises a support, shoulder straps, a shoulder strap length adjusting device and a waistband. The waistband is arranged at the lower end of the support, and the shoulder strap length adjusting device is arranged on the lower portion of the support and located above the waistband. One end of each shoulder strap is fixed to the left side and the right side of the upper end of the support, and the other end of each shoulder strap is connected with the shoulder strap length adjusting device. The corrector shoulder strap length adjusting device is arranged on the support, the shoulder straps are more attached to the human body, and the whole corrector shoulder strap length adjusting device is novel in design, compact in structure and high in practicability.

Description

Technical Field

[0001] The utility model belongs to the technical field of back correctors, in particular to a back corrector. Background Art

[0002] People's bad sitting and lying postures in study, work and life often lead to spinal deformation. Long-term spinal deformation can lead to hunchback or spondylitis and other diseases. If corrected in time in the early stage, it will have a good improvement effect on hunchback. If not corrected in time, it will form a fixed hunchback.

[0003] The existing correctors have two designs: one is that the shoulder strap and waist belt are designed as one body, and the tightness of the shoulder strap is adjusted at the waist belt. This design often does not allow the shoulder strap to fit the human body well. Another design is that the shoulder strap and waist belt are separated, and adjustment devices are provided on the shoulder strap and waist belt respectively. In this design, the adjustment devices often come into direct contact with the human body. The human body will feel uncomfortable if the corrector is used for a long time, and the shoulder strap does not fit the human body well. Moreover, this design is more troublesome to operate.

[0004] The utility model provides a back corrector, wherein a shoulder strap length adjustment device of the corrector is arranged on a bracket, one end of two shoulder straps is connected to the left and right sides of the upper end of the bracket, and the other end is connected to the shoulder strap length adjustment device arranged at the lower part of the bracket, so that the shoulder straps fit the human body more closely. The back corrector provided by the utility model has a novel design, a compact structure and is easy to operate. Utility Model Content

[0005] The utility model is realized by the following technical solutions:

[0006] A back corrector comprises a support, a shoulder strap, a shoulder strap length adjustment device and a waist belt; the waist belt is arranged at the lower end of the support, and the shoulder strap length adjustment device is arranged at a position lower than the support and above the waist belt; there are two shoulder straps, and one end of each shoulder strap is fixed to the left and right sides of the upper end of the support, and the other end is connected to the shoulder strap length adjustment device. With the above technical solution, the shoulder strap length adjustment device is arranged at a lower position on the support and located at the upper part of the waist belt, which makes it more convenient to adjust the shoulder strap.

[0007] As a further improvement of the utility model, the shoulder strap length adjustment device includes a shell arranged on the bracket and two rotating shafts arranged in the shell; the lower end of each rotating shaft extends from the shell and is connected to the knob, and each rotating shaft located inside the shell is connected to the shoulder strap;

[0008] A ratchet wheel linked to the rotating shaft is also provided on each rotating shaft in the shell, and a ratchet control device is also provided on one side of each ratchet wheel. The ratchet control device enables each ratchet wheel to rotate unidirectionally so that the shoulder strap is wound around the rotating shaft to tighten the strap.

[0009] By adopting the above technical solution, the length adjustment device of the shoulder strap is cleverly designed to be integrated with the bracket, the design is novel and beautiful, and the adjustment and installation of the shoulder strap are convenient.

[0010] As a further improvement of the utility model, the ratchet control device includes a card plate and a card plate control device; a slide groove is provided on one side of the ratchet, the card plate is slidably arranged in the slide groove, and an end of the card plate close to the ratchet is provided with an inclined surface that matches the ratchet tooth groove;

[0011] The card plate control device includes a first boss arranged in the slide groove away from one end of the ratchet and extending toward the rear side of the bracket. A strip notch extending toward the inclined surface is provided in the middle of one end of the card plate away from the inclined surface. The first boss is located in the strip notch. A spring is provided in the strip notch. One end of the spring abuts against the side wall of the strip notch close to the inclined surface, and the other end abuts against the first boss.

[0012] By adopting the above technical solution, the length of the shoulder strap can be adjusted by simply rotating the knob, which is easy to operate, and the ratchet control device has an ingenious and simple structure and is easy to assemble and disassemble.

[0013] As a further improvement of the utility model, the ratchet is arranged at one end close to the knob, and the ratchet control device is arranged between the two rotating shafts; the ends of the two rotating shafts extending out of the housing are located on both sides of the bracket and both extend obliquely downward away from the bracket. With the above technical solution, one end of the two rotating shafts extending out of the housing is fixedly connected to the knob and is located on both sides of the bracket, and extends obliquely downward away from the bracket, so that the bracket and the two rotating shafts form an inverted "Y" shape, so that the shoulder strap fits the human body better and can be rotated and retracted better. At the same time, such a setting makes it easy to set the ratchet control device between the two rotating shafts, making the shoulder strap length adjustment device more compact in design and more rational in space utilization, and also facilitates the setting of one-button unlocking of the two ratchets at the same time.

[0014] As a further improvement of the present invention, the card plate control device also includes a second boss arranged at one end of each card plate away from the ratchet and extending toward the rear side of the bracket, and a cover plate arranged on the two second bosses; the cover plate is provided with side edges extending toward the front side of the bracket on both sides close to the second boss, and the inner sides of the side edges are in contact with the side walls of the second boss close to the ratchet; the shell is provided with a strip opening at a position corresponding to the cover plate, and a paddle is provided on the rear side of the shell, and a protrusion is provided on the paddle close to one side of the shell, the protrusion passes through the strip opening and is fixedly connected to the cover plate, and the protrusion can slide up and down along the strip opening; each side edge is arranged at an angle to the strip opening.

[0015] By adopting the above technical solution, the paddle and the cover plate are linked together. By paddleing the paddle outside the shell, the cover plate simultaneously drives the clamping plates on both sides thereof to slide to the side away from the ratchet. Two ratchets can be unlocked at the same time by one paddle. The design is ingenious and the structure is compact.

[0016] As a further improvement of the utility model, the slide slot upper cover is provided with a pressing sheet. The above technical solution ensures that the spring is always in the slide slot during the back and forth sliding of the card plate, making the device run more stably.

[0017] As a further improvement of the utility model, a cylinder extending toward the first boss is provided on the side wall of the strip-shaped notch close to the inclined surface, and the spring is sleeved on the cylinder. By adopting the above technical solution, the spring is sleeved on the cylinder, which further ensures the stability of the back and forth sliding of the card plate, so that the spring always runs stably in the slide groove.

[0018] As a further improvement of the utility model, the front side of the bracket is also provided with a back support plate for supporting the back at the middle and upper part. The above technical solution enables the corrector to better support the back and achieve a better correction effect.

[0019] As a further improvement of the utility model, the back support plate is a flat plate, and the flat plate is provided with ventilation holes. The above technical solution can effectively support the back and ensure ventilation of the back.

[0020] As a further improvement of the utility model, a soft cushion is arranged on the front side of the backrest. With the above technical solution, a soft cushion is designed on the side of the backrest that contacts the back of the human body, which better fits the back curve and makes the back more comfortable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a front view of the back corrector of the utility model;

[0022] Figure 2 It is a three-dimensional diagram of the back corrector of the utility model;

[0023] Figure 3 It is a rear view of the back corrector of the utility model;

[0024] Figure 4 This is a structural exploded view of the back corrector of the utility model;

[0025] Figure 5 It is a three-dimensional diagram of the front housing of the utility model;

[0026] Figure 6 For this utility model Figure 5 A partial enlarged view of point A in the middle;

[0027] Figure 7 This is a schematic diagram of the connection between the rotating shaft, the ratchet and the knob of the utility model;

[0028] Figure 8 This is an oblique upward view of the pallet of the utility model;

[0029] Fig. 9 This is an oblique top view of the pallet of the utility model;

[0030] Fig.10 It is a three-dimensional diagram of the tablet pressing of the utility model;

[0031] Fig.11 This is a rear oblique view of the cover plate of the utility model;

[0032] Fig.12 This is a front oblique view of the cover plate of the utility model;

[0033] Fig.13 This is a front oblique view of the plectrum of the utility model;

[0034] Fig.14 It is a schematic diagram of the assembly of the rotating shaft and the housing as well as the ratchet and the clamping plate of the utility model;

[0035] Fig.15 For this utility model Fig.14 A partial enlarged view of point B in the middle;

[0036] Fig.16 This is an oblique top view of the corrector of the utility model (without the rear shell);

[0037] Fig.17 For this utility model Fig.16 A partial enlarged view of point C in the middle;

[0038] Fig.18 A three-dimensional diagram of a back corrector according to Embodiment 2 of the present utility model;

[0039] Fig.19 This is a three-dimensional diagram of a back corrector according to Embodiment 3 of the present invention.

[0040] In the figure: 1. shell; 2. shoulder strap; 3. waist belt; 4. backrest; 5. cushion; 11. shell; 12. rotating shaft; 13. knob; 14. ratchet; 15. clamping plate; 111. slide groove; 151. inclined surface; 152. strip-shaped notch; 16. first boss; 17. cylinder; 18. spring; 19. second boss; 20. cover plate; 202. side; 112. strip-shaped opening; 21. paddle; 212. protrusion; 22. pressing plate; 200. through hole; 201. strip-shaped protrusion; 211. rectangular protrusion. DETAILED DESCRIPTION

[0041] The following will further describe the technical solution of the utility model through implementation modes with reference to the accompanying drawings. It should be noted that the following implementation modes are used to help understand the utility model, but do not constitute a limitation to the utility model.

[0042] In the description of the present application, it should be understood that the terms "upper", "lower", "upper part", "lower part", "upper end", "lower end", "vertical", "top", "inside", "outside", "front", "back", etc., indicating orientations or positional relationships, are based on the orientations shown in the drawings or the orientations of objects in use, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application. Example 1

[0043] See also Figures 1 to 3 A back corrector comprises a support 1, two shoulder straps 2, a shoulder strap length adjustment device and a waist belt 3. The waist belt 3 is a strap that is independent of the shoulder straps 2 and is arranged at the lower end of the support 1 for tying around the waist. One end of the two waist belts 3 is fixedly connected to the left and right sides of the support, and the other end is provided with Velcro. The shoulder strap length adjustment device is arranged at a lower position on the support 1 and is located above the waist belt 3. The upper end of the support 1 is provided with a horizontal plate extending obliquely upward to the left and right sides of the support, and the horizontal plate and the vertical support 1 are designed in a "Y" shape. One end of the two shoulder straps 2 is fixed to the left and right sides of the horizontal plate at the upper end of the support 1, and the other end is connected to the shoulder strap length adjustment device.

[0044] Combination Figures 4 to 7 and Figure 14-17The shoulder strap length adjustment device comprises a housing 11 arranged on a bracket 1 and two rotating shafts 12 arranged in the housing 11. The axial direction of the two rotating shafts 15 is set at an acute angle with the vertical direction of the bracket. The ends of the two rotating shafts 12 extending out of the housing 11 are located on both sides of the bracket 1 and extend obliquely downward away from the bracket 1. Two support plates 113 are arranged in the housing 11 along the axial direction of the rotating shaft. The support plates 113 are parallel to the edge of the housing where the rotating shaft 12 extends out of the housing. A groove 1131 for limiting the rotating shaft is provided on the support plates 113 and the housing. One end of the rotating shaft 12 is fixedly connected to the knob 13, and a notch is provided in the middle of the end away from the knob 13, which divides the rotating shaft into two semicircular cylinders. The rotating shaft 12 is arranged in the groove 1131, and the end of the rotating shaft 12 extending out of the housing 11 is connected to the knob 13. The two rotating shafts 12 located inside the housing 11 are respectively connected to the shoulder strap 2. The setting of the support plate 113 provides space for the winding of the shoulder strap.

[0045] Specifically, Fig.17 As shown, in order to facilitate the connection between the shoulder strap 2 and the rotating shaft 12 and enable the rotation of the rotating shaft 12 to stably drive the shoulder strap 2 to be wound around the rotating shaft, the shoulder strap 2 passes through the gap in the middle of the rotating shaft 12 and is connected to one of the semi-cylinders.

[0046] In order to lock the rotating shaft 12, each rotating shaft 12 is also provided with a ratchet 14 linked to the rotating shaft, and a ratchet control device for controlling the rotation of the ratchet 14 is also provided in the shell 11. The ratchet control device makes each ratchet 14 rotate unidirectionally so that the shoulder strap 2 is wound around the rotating shaft 12 to tighten the strap.

[0047] Combination Figures 4 to 9 The ratchet control device includes a card plate 15 and a card plate control device. A slide groove 111 is provided on one side of the ratchet 14, and the card plate 15 slides back and forth in the slide groove 111 along the axial direction perpendicular to the rotating shaft 12. The end of the card plate 15 close to the ratchet 14 is provided with an inclined surface 151 that matches the tooth groove of the ratchet 14.

[0048] The card plate control device includes a first boss 16 disposed in the slide slot 111 at one end away from the ratchet 14 and extending toward the rear side of the bracket 1. A strip notch 152 extending toward the inclined surface 151 is disposed in the middle of the end away from the inclined surface 151 on the card plate 15, the first boss 16 is disposed in the strip notch 152, a spring 18 is disposed in the strip notch 152, one end of the spring 18 abuts against the side wall of the strip notch 152 close to the inclined surface 151, and the other end abuts against the side wall of the first boss 16 close to the ratchet 14.

[0049] In order to make the spring 18 run stably in the slide groove 111, a cylinder 17 extending toward the first boss 16 is provided on the side wall of the strip notch 152 close to the inclined surface 151, and the spring 18 is sleeved on the cylinder 17 located in the strip notch 152. There is a certain distance between one end of the cylinder 17 close to the first boss 16 and the side wall of the first boss 16 close to the ratchet 14, so that a travel space is formed between one end of the cylinder 17 close to the first boss 16 and the first boss 16 to enable the clamping plate 15 to slide.

[0050] When the spring 18 is in the reset state, the inclined surface 151 of the clamping plate 15 is inserted into the tooth groove of the ratchet 14. At this time, the ratchet 14 can only rotate unidirectionally along the direction in which its own gear teeth extend. When the knob 13 is rotated, the ratchet 14 rotates step by step. Driven by the spring 18, the clamping plate 15 slides away from the ratchet 14, so that the inclined surface 151 slides over the back of the teeth of the ratchet 14 and inserts into the next tooth groove of the ratchet 14, preventing the ratchet 14 from rotating in the opposite direction, so that the ratchet 14 rotates unidirectionally to wind the shoulder strap 2 around the rotating shaft 12, thereby tightening the shoulder strap 2.

[0051] Preferably, the ratchet 14 is arranged at one end of the housing near the knob 13, and the ratchet control device is arranged between the two rotating shafts 12. The ends of the two rotating shafts 12 extending out of the housing 11 are located on both sides of the bracket 1 and extend obliquely downward away from the bracket 1. Through this arrangement, the ends of the two rotating shafts 12 extending out of the housing 11 are fixedly connected to the knob 13 and are located on both sides of the bracket 1, and extend obliquely downward away from the bracket 1, so that the bracket 1 and the two rotating shafts 12 form an inverted "Y" shape, so that the shoulder strap 2 fits the human body better and can be rotated and retracted better. At the same time, this arrangement makes it easy to set the ratchet control device between the two rotating shafts 12, making the shoulder strap length adjustment device more compact in design and more rational in space utilization, and also facilitates the setting of one-key unlocking of the two ratchets 14 at the same time.

[0052] Combination Figure 8 , Fig. 9 and Fig.15 The card control device further includes a second boss 19 disposed on one end of each card 15 away from the ratchet 14 and extending toward the rear side of the bracket 1 , and a cover plate 20 is disposed on two second bosses 19 close to each other.

[0053] Combination Figure 4 , Fig.11 and Fig.12, the cover plate 20 is provided with side edges 202 extending toward the front side of the bracket 1 on both sides close to the second boss 19, and the inner sides of the side edges 202 are in contact with the side walls of the second boss 19 close to the ratchet 14. The housing 11 is provided with a strip opening 112 at a position corresponding to the cover plate 20. A cylinder 203 is provided in the middle of the front side of the cover plate 20, and a through hole 200 is provided in the middle of the cylinder 203, which passes through the cover plate 20 from front to back; a strip protrusion 201 is provided on the rear side of the cover plate 20 above the through hole 200, and the strip protrusion 201 is used to be stuck in the strip opening 112 for positioning.

[0054] Combination Figure 4 and Fig.13 A paddle 21 is provided at the rear side of the housing 11, and a protrusion 212 is provided at the side of the paddle 21 close to the housing 11. The protrusion 212 passes through the strip opening 112 and extends into the through hole 200 of the cover plate to be fixedly connected to the cover plate 20. The protrusion 212 can slide up and down along the strip opening 112. Each side edge 202 of the cover plate 20 is set at an angle with the strip opening 112.

[0055] In order to make the connection between the paddle 21 and the cover plate 20 more stable and easier to paddle, the paddle 21 is a rectangular shell with an opening on the front side, and a rectangular protrusion 211 is provided in the middle of the front side. The rectangular protrusion 211 protrudes from the front side of the paddle 21, so that it can be inserted into the strip opening 112 and slide up and down, and cooperate more stably with the strip opening 112. The protrusion 212 is a cylinder provided on the front side of the rectangular protrusion 211, and the cylindrical protrusion 212 is inserted into the through hole 200 of the cover plate 20, so that the connection between the cover plate 20 and the paddle 21 is more stable.

[0056] With the above arrangement, when the shoulder strap 2 needs to be loosened, it is only necessary to push the paddle 21 downwards. The paddle 21 is linked with the cover plate 20. During the process of the paddle 21 driving the cover plate 20 to move downwards, the two side edges 202 on the front side of the cover plate 20 pull the second bosses 19 on the left and right sides to make them approach each other. At this time, the left and right card plates 15 both leave their corresponding ratchet wheels 14. When the inclined surface 151 of the card plate 15 completely leaves the ratchet wheel 14, the card plate 15 no longer restricts the reverse rotation of the ratchet wheel 14. At this time, the knobs 13 on both sides can be manually rotated in the reverse direction to make the rotating shaft 12 rotate in the reverse direction, thereby loosening the shoulder strap 2. When the shoulder strap 2 is adjusted to a suitable length, the paddle 21 is released, and the elastic force of the spring 18 drives the card plate 15 to return to its original position and slide in the direction close to the ratchet 14, so that the cover plate 20 and the paddle 21 move upward until the inclined surface 151 of the card plate 15 is inserted into the tooth groove of the ratchet 14 again, thereby preventing the rotating shaft 12 from rotating and fixing the length of the shoulder strap 2, thereby achieving the purpose of unlocking the ratchets on both sides at the same time with one click.

[0057] like Fig.10 and Figure 16-17As shown, in order to ensure that the spring 18 is always in the slide slot 111 during the back and forth sliding of the card plate 15, so that the entire device can run more stably, a pressing piece 22 is provided on the upper cover of the slide slot 111. Specifically, two protrusions 221 are provided at the bottom of the pressing piece 22, and the distance between the inner sides of the two protrusions 221 is consistent with the width of the outer side of the slide slot 111. Example 2

[0058] like Fig.18 As shown, on the basis of Example 1, in order to make the corrector better support the back and have a better correction effect, a back support plate 4 for supporting the back is further provided at the middle and upper part of the front side of the bracket 1. The back support plate 4 is a square flat plate. In order to make the back support plate 4 support the back while ensuring the back is ventilated, a plurality of ventilation holes are also provided on the flat plate. Example 3

[0059] like Fig.19 As shown, based on Example 2, in order to make the backrest 4 fit the back curve better and make the back more comfortable, a soft cushion 5 is further provided on the front side of the backrest 4 (the side in contact with the back of the human body).

[0060] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, equivalent changes, improvements and modifications made without departing from the principle of the present invention are all within the protection scope of the present invention.

Claims

1. A back corrector, characterized in that: The utility model comprises a support (1), a shoulder strap (2), a shoulder strap length adjusting device and a waist belt (3); the waist belt (3) is arranged at the lower end of the support (1), and the shoulder strap length adjusting device is arranged at a position below the support (1) and above the waist belt; the shoulder strap (2) has two shoulder straps, and one end of each shoulder strap (2) is fixed to the left and right sides of the upper end of the support (1), and the other end is connected to the shoulder strap length adjusting device.

2. The back corrector according to claim 1, characterized in that: The shoulder strap length adjustment device comprises a shell (11) arranged on the bracket (1) and two rotating shafts (12) arranged in the shell (11); the lower end of each rotating shaft (12) extends out from the shell (11) and is connected to a knob (13), and each rotating shaft (12) located inside the shell (11) is connected to the shoulder strap (2); Each rotating shaft (12) in the housing (11) is also provided with a ratchet (14) which is linked to the rotating shaft (12), and a ratchet control device is also provided on one side of each ratchet (14), wherein the ratchet control device causes each ratchet (14) to rotate unidirectionally so that the shoulder strap (2) is wound around the rotating shaft (12) to tighten the strap.

3. The back corrector according to claim 2, characterized in that: The ratchet control device comprises a clamping plate (15) and a clamping plate control device; a slide groove (111) is provided on one side of the ratchet (14), the clamping plate (15) is slidably arranged in the slide groove (111), and an end of the clamping plate (15) close to the ratchet (14) is provided with an inclined surface (151) that matches the tooth groove of the ratchet (14); The card plate control device comprises a first boss (16) arranged in the slide groove (111) at one end away from the ratchet (14) and extending toward the rear side of the bracket (1); a strip-shaped notch (152) extending toward the inclined surface (151) is provided in the middle of one end of the card plate (15) away from the inclined surface (151); the first boss (16) is located in the strip-shaped notch (152); a spring (18) is provided in the strip-shaped notch (152); one end of the spring (18) abuts against a side wall of the strip-shaped notch (152) close to the inclined surface (151), and the other end abuts against the first boss (16).

4. The back corrector according to claim 3, characterized in that: The ratchet (14) is arranged at one end close to the knob (13), and the ratchet control device is arranged between the two rotating shafts (12); one end of the two rotating shafts (12) extending out of the housing (11) is located on both sides of the bracket (1) and both extend obliquely downward away from the bracket (1).

5. The back corrector according to claim 4, characterized in that: The card plate control device further comprises a second boss (19) arranged at one end of each card plate (15) away from the ratchet (14) and extending toward the rear side of the bracket (1), and a cover plate (20) arranged on the two second bosses (19); the cover plate (20) is provided with side edges (202) extending toward the front side of the bracket (1) on both sides close to the second bosses, and the inner sides of the side edges (202) are in contact with the side walls of the second bosses (19) close to the ratchet (14); The shell (11) is provided with a strip opening (112) at a position corresponding to the cover plate (20); a paddle (21) is provided on the rear side of the shell (11); a protrusion (212) is provided on a side of the paddle (21) close to the shell (11); the protrusion (212) passes through the strip opening (112) and is fixedly connected to the cover plate (20); the protrusion (212) can slide up and down along the strip opening; and each side edge (202) is arranged to form an angle with the strip opening (112).

6. The back corrector according to any one of claims 3 to 5, characterized in that: The upper cover of the slide groove (111) is provided with a pressing sheet (22).

7. The back corrector according to claim 6, characterized in that: A cylinder (17) extending towards the first boss (16) is provided on a side wall of the strip-shaped notch (152) close to the inclined surface (151), and the spring (18) is sleeved on the cylinder (17).

8. The back corrector according to any one of claims 1 to 5, characterized in that: The front side of the support (1) is also provided with a back support plate (4) in the upper middle portion for supporting the back.

9. The back corrector according to claim 8, characterized in that: The back support plate (4) is a flat plate, and ventilation holes are provided on the flat plate.

10. The back corrector according to claim 9, characterized in that: A soft cushion (5) is provided on the front side of the back support plate (4).

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