A plastic medical fixed waist belt with an automatic adjustment function

Abstract

The present invention relates to a plastic medical fixed waist belt with automatic adjustment function, comprising a hard waist plate, the left and right sides of the hard waist plate are provided with retractable belts, the end of the retractable belt away from the hard waist plate is fixedly connected with a fixed belt, and the fixed belt is embedded with a pressure sensor; a width adjustment mechanism, used to adjust the width of the hard waist plate, the width adjustment mechanism includes a through hole arranged on the hard waist plate, two expansion plates are slidably connected in the through hole, two rotating shafts are rotatably connected in the through hole, the two rotating shafts are connected through a gear group transmission, the outside of the two rotating shafts are coaxially fixedly connected with a driving gear, and an intermediate plate is provided between the two rotating shafts. Compared with the prior art, the present application can adjust the width of the waist plate, has a wider range of application, and can automatically adjust the tension when bending, does not cause a large obstacle when bending, and reduces the impact on daily life.

Description

Technical Field

[0001] The present invention relates to the field of lumbar belts, and specifically to a plasticizable medical fixed lumbar belt with an automatic adjustment function. Background Art

[0002] As is well known, a lumbar belt, also known as a girdle or lumbar support belt, is often used in sports. During exercise, the muscles in the waist are often tense and painful due to excessive resistance exercise and high-intensity load-bearing. It is generally made of a breathable lumbar protection net, high-quality high-elastic left and right elastic bands, reinforcing bands, elastic cloth, etc. It contains semi-rigid aluminum alloy strips or medical fiber plastic strips inside, which can support and fix the spine, tighten the abdomen, and have excellent tensile and peeling strength, ensuring the long-term safe use of the lumbar support. It is convenient to adjust the size and tightness of the lumbar support to increase abdominal pressure, reduce lumbar spine load-bearing, limit the activities of the lumbosacral vertebrae, relieve pain, and assist in physical therapy and rehabilitation. It has a unique design, is anti-allergic, has good air permeability, is comfortable to wear, and can be freely adjusted in tightness, providing certain protection for the spine and waist. A medical lumbar belt is a medical device used to support and protect the waist, usually used to relieve lumbar pain, provide additional support, or help patients recover during the rehabilitation process.

[0003] Most of the existing lumbar belts are integrally formed and sewn, with a fixed width and non-adjustable. However, the users vary in height, weight, and build. A lumbar belt suitable for a small-sized user has low adaptability when used by a large-sized person. Moreover, after wearing the lumbar belt, it is difficult for the wearer to bend down. When the bending amplitude is large, the lumbar belt is easily pulled and damaged, which has a great impact on the wearer's daily life.

[0004] Therefore, based on the above problems, we have invented a plasticizable medical fixed lumbar belt with an automatic adjustment function. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a plasticizable medical fixed lumbar belt with an automatic adjustment function, which has the advantages of stable feeding and ensuring the same powder density in the mold cavity, and solves a series of problems such as unstable filling in the mold cavity and inconsistent powder density during the forging process, resulting in height changes.

[0006] To achieve the above object, the present invention provides the following technical solution: A plasticizable medical fixed lumbar belt with an automatic adjustment function, comprising a rigid lumbar plate, telescopic bands are provided on both the left and right sides of the rigid lumbar plate, one end of the telescopic band far away from the rigid lumbar plate is fixedly connected with a fixed band, and a pressure sensor is embedded in the fixed band;

[0007] Width adjustment mechanism for adjusting the width of the rigid lumbar support plate. The width adjustment mechanism includes through holes provided on the rigid lumbar support plate. Two expansion plates are slidably connected in the through holes. Two rotating shafts are rotatably connected in the through holes. The two rotating shafts are drivingly connected through a gear set. Driving gears are coaxially and fixedly connected to the outside of the two rotating shafts respectively. An intermediate plate is provided between the two rotating shafts. The lower end of the intermediate plate is fixedly connected to the lower expansion plate. Tooth grooves meshing with the two driving gears are respectively provided on both sides of the intermediate plate. Side plates are provided on the opposite sides of the two driving gears. The upper ends of the two side plates are fixedly connected to the upper expansion plate. Tooth grooves meshing with the two driving gears are respectively provided on the two side plates. An adjustment mechanism for adjusting one of the rotating shafts is provided at the rear side of the rigid lumbar support plate;

[0008] Tightness adjustment mechanism for adjusting the tightness between the rigid lumbar support plate and the telescopic belt. The tightness adjustment mechanism includes two winding wheels. The two winding wheels are rotatably connected coaxially with the two rotating shafts respectively. Two first tightening belts are wound around the outside of the two winding wheels respectively. Two winding wheels are provided on the opposite sides of the two winding wheels. The two winding wheels are rotatably connected to the inner side wall of the through hole. One end of each of the two first tightening belts away from the winding wheel is fixedly wound around the two winding wheels respectively. A second tightening belt is also fixedly wound around the outside of the two winding wheels. One end of each of the two second tightening belts away from the winding wheel slides through the rigid lumbar support plate and is fixedly connected to the telescopic belt. A motor is fixedly connected to the outside of the rigid lumbar support plate. The driving shaft of the motor actively penetrates the rigid lumbar support plate and is rotatably connected to the inner side wall of the through hole. A power gear is coaxially and fixedly connected to the driving shaft of the motor.

[0009] Preferably, the gear set includes two meshing transmission gears. The two transmission gears are rotatably connected coaxially with the two rotating shafts respectively. One of the transmission gears is meshingly connected with the power gear. The two transmission gears are respectively fixedly connected to the two winding wheels.

[0010] Preferably, the adjustment mechanism includes a fixed block fixedly connected to the outer wall of the rigid lumbar support plate. A turntable is rotatably sleeved outside the fixed block. One end of one of the rotating shafts rotatably penetrates the rigid lumbar support plate and the fixed block and is fixedly connected to the turntable. A limiting member for limiting the turntable is provided on the fixed block.

[0011] Preferably, the limiting member includes a limiting groove provided on the side wall of the fixed block. An elastic piece is provided in the limiting groove. A limiting block is fixedly connected to the side of the elastic piece close to the limiting groove. A plurality of pressing holes are provided through the turntable. The plurality of pressing holes are distributed in an annular array on the turntable.

[0012] Preferably, the first tightening belts and the second tightening belts outside the winding wheels are overlapped.

[0013] Preferably, the rigid lumbar support plate is connected to the stretchable belt through stretchable cloth, and the two expansion plates are connected to the stretchable belt through stretchable cloth.

[0014] Preferably, it further includes an anti-loosening mechanism for preventing the stretchable belt and the rigid lumbar support plate from being too loose and causing the rigid lumbar support plate to fall off. The anti-loosening mechanism includes a first anti-detachment plate and a second anti-detachment plate. The first anti-detachment plate is fixedly connected to the rigid lumbar support plate, and the second anti-detachment plate is fixedly connected to the stretchable belt. A cavity is provided inside the second anti-detachment plate, and two anti-detachment gears are rotatably connected inside the cavity. The two anti-detachment gears are meshed with each other, and a winding wheel is coaxially fixedly connected to each of the two anti-detachment gears. A traction line is fixedly wound around each of the two winding wheels. One end of each of the two traction lines away from the winding wheel slides through the second anti-detachment plate and is fixedly connected to the first anti-detachment plate. A blocking member is provided inside the cavity for blocking one of the anti-detachment gears.

[0015] Preferably, the blocking member includes a baffle plate slidably connected to the inner side wall of the cavity. A plurality of teeth matching the anti-detachment gears are fixedly connected to one end of the baffle plate close to the anti-detachment gears. A pull rod is fixedly connected to the other end of the baffle plate away from the anti-detachment gears. One end of the pull rod away from the baffle plate slides through the second anti-detachment plate and is fixedly connected to a pull handle.

[0016] Preferably, a return spring is embedded between the pull rod and the second anti-detachment plate.

[0017] Preferably, a suspension strap is fixedly connected between the fixed belt and the stretchable belt on the same side.

[0018] Compared with the prior art, the present invention provides a plasticizable medical fixed waist belt with an automatic adjustment function, having the following beneficial effects:

[0019] 1. When wearing this plasticizable medical fixed waist belt with an automatic adjustment function, when the wearer has a small body size and a narrow back, it can be directly worn. When the wearer has a large body size and a wide back, at this time, press the limit block so that the limit block does not limit the turntable, and then rotate the turntable. The turntable drives the two rotating shafts to rotate. The rotating shafts drive the middle plate and the side plates to move up and down relatively through the driving gears. The middle plate and the side plates drive the two expansion plates to move up and down relatively, so as to increase the width of the rigid lumbar support plate as a whole, which is suitable for people with large body sizes to wear, and has a wide range of applications.

[0020] 2. For this malleable medical fixation lumbar support belt with an automatic adjustment function, when the wearer bends down, during the bending process, the pressure received by the pressure sensor increases. At this time, the drive shaft of the motor drives the power gear to rotate, the power gear drives the two transmission gears to rotate, the two transmission gears drive the two winding wheels to rotate, and the two winding wheels loosen the first elastic band. When bending down, the distance between the fixing band and the rigid lumbar support plate increases, the fixing band pulls the second elastic band, and the second elastic band drives the winding wheel to rotate, so as to adjust the tension between the fixing band and the rigid lumbar support plate. When bending down, the tension of the lumbar support belt can be automatically adjusted, and there will be no great hindrance when bending down, and the impact on daily life can be reduced during the shaping process of the lumbar support belt.

[0021] The present invention can adjust the width of the lumbar support plate, has a wide range of applications, and can automatically adjust the tension when bending down, without great hindrance when bending down, and reduces the impact on daily life. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a front structural schematic diagram of the present invention;

[0023] Figure 2 is a back structural schematic diagram of the present invention;

[0024] Figure 3 is Figure 2 an enlarged view of part A in

[0025] Figure 4 is a back structural perspective view of the present invention;

[0026] Figure 5 is Figure 4 an enlarged view of part B in

[0027] Figure 6 is an internal structural schematic diagram of the rigid lumbar support plate in the present invention;

[0028] Figure 7 is a structural perspective view of the relaxation and detachment mechanism in the present invention;

[0029] Figure 8 is a structural perspective view of the adjustment mechanism in the present invention.

[0030] In the figure: 1, hard lumbar support plate; 2, telescopic belt; 3, fixing belt; 4, width adjustment mechanism; 5, through hole; 6, expansion plate; 7, rotating shaft; 8, gear set; 9, driving gear; 10, middle plate; 11, side plate; 12, adjustment mechanism; 13, tightness adjustment mechanism; 14, winding wheel; 15, first elastic belt; 16, winding wheel; 17, second elastic belt; 18, motor; 19, power gear; 20, transmission gear; 21, fixing block; 22, turntable; 23, limiting part; 24, limiting groove; 25, elastic sheet; 26, limiting block; 27, pressing hole; 28, anti-loosening mechanism; 29, first anti-loosening plate; 30, second anti-loosening plate; 31, cavity; 32, anti-loosening gear; 33, wire winding wheel; 34, traction wire; 35, blocking part; 36, baffle; 37, tooth; 38, pull rod; 39, pull handle; 40, suspension strap; 41, pressure sensor. Detailed implementation mode

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0032] As introduced in the background technology, there are deficiencies in the prior art. To solve the above technical problems, the present application proposes a plastic medical fixing waist belt with an automatic adjustment function.

[0033] As Figure 1-8 shown, a plastic medical fixing waist belt with an automatic adjustment function includes

[0034] A hard lumbar support plate 1, telescopic belts 2 are provided on both the left and right sides of the hard lumbar support plate 1. One end of the telescopic belt 2 away from the hard lumbar support plate 1 is fixedly connected to a fixing belt 3. A pressure sensor 41 is embedded in the fixing belt 3. It should be noted that the pressure sensor 41 is a thin film type pressure sensor and is electrically connected to the motor 18. It should be noted that a suspension strap 40 is fixedly connected between the fixing belt 3 and the telescopic belt 2 on the same side. It should be noted that the setting of the suspension strap 40 can prevent the waist belt from moving downward during wearing.

[0035] In order to allow people of different body shapes to wear the waist support belt, it is necessary to adjust the width of the waist support belt. Therefore, a width adjustment mechanism 4 is provided for adjusting the width of the hard waist support plate 1. The width adjustment mechanism 4 includes a through hole 5 provided on the hard waist support plate 1, and two expansion plates 6 are slidably connected in the through hole 5. It should be noted that the hard waist support plate 1 is connected to the telescopic belt 2 by a telescopic cloth, and the two expansion plates 6 are connected to the telescopic belt 2 by a telescopic cloth. Two rotating shafts 7 are rotatably connected in the through hole 5, and the two rotating shafts 7 are connected by a gear set 8 for transmission. Specifically, the gear set 8 includes two mutually meshing transmission gears 20, and the two transmission gears 20 are respectively coaxially rotatably connected to the two rotating shafts 7, one of which is meshed with the power gear 19, and the two transmission gears 20 are respectively fixedly connected to the two winding wheels 14. The two rotating shafts 7 are coaxially fixedly connected with the driving gear 9, and an intermediate plate 10 is provided between the two rotating shafts 7, and the lower end of the intermediate plate 10 is fixedly connected to the lower expansion plate 6.

[0036] In the present invention, the two sides of the middle plate 10 are respectively provided with tooth grooves meshing with the two driving gears 9, and the two driving gears 9 are provided with side plates 11 on the opposite sides. The upper ends of the two side plates 11 are fixedly connected to the upper unfolding plate 6, and the two side plates 11 are respectively provided with tooth grooves meshing with the two driving gears 9. The rear side of the hard waist guard plate 1 is provided with an adjustment mechanism 12 for adjusting one of the rotating shafts 7. It should be noted that the adjustment mechanism 12 includes a fixed block 21 fixedly connected to the outer wall of the hard waist guard plate 1, and the outer rotating sleeve of the fixed block 21 is provided. There is a turntable 22, one end of which is a rotating shaft 7 that rotates through the hard waist guard plate 1 and the fixed block 21 and is fixedly connected to the turntable 22. The fixed block 21 is provided with a limiting member 23 for limiting the turntable 22. It is worth mentioning that the limiting member 23 includes a limiting groove 24 arranged on the side wall of the fixed block 21, and an elastic sheet 25 is arranged in the limiting groove 24. The elastic sheet 25 is fixedly connected to the limiting block 26 on one side close to the limiting groove 24. A plurality of pressing holes 27 are penetrated through the turntable 22, and the plurality of pressing holes 27 are distributed on the turntable 22 in a ring array.

[0037] By setting the above-mentioned technical features, when the waist protector is worn, if the wearer is small in size and has a narrow back, the waist protector can be worn directly; if the wearer is large in size and has a wide back, the limit block 26 is pressed so that the limit block 26 does not limit the turntable 22, and then the turntable 22 is rotated. The turntable 22 drives the two shafts 7 to rotate, and the shafts 7 drive the middle plate 10 and the side plates 11 to rise and fall relative to each other through the driving gear 9. The middle plate 10 and the side plates 11 drive the two unfolded plates 6 to rise and fall relative to each other, thereby increasing the width of the hard waist protector 1 as a whole.

[0038] In order to avoid difficulty in bending over, a tightness adjustment mechanism 13 is provided to adjust the tightness between the rigid lumbar support plate 1 and the stretch belt 2. The tightness adjustment mechanism 13 includes two winding wheels 14, which are coaxially rotatably connected to two rotating shafts 7 respectively. Two first elastic bands 15 are wound around the outside of the two winding wheels 14. On the opposite sides of the two winding wheels 14, two winding rollers 16 are provided. It should be noted that the winding rollers 16 are rotatably connected to the inner wall of the through hole 5 through a torsion spring. It should be noted that the first elastic bands 15 and the second elastic bands 17 are respectively arranged on both sides of the winding rollers 16. The two winding rollers 16 are rotatably connected to the inner side wall of the through hole 5. The ends of the two first elastic bands 15 far away from the winding wheels 14 are fixedly wound around the two winding rollers 16. The second elastic bands 17 are also fixedly wound around the outside of the two winding rollers 16. It should be noted that both the first elastic bands 15 and the second elastic bands 17 are made of stretch belts. The ends of the two second elastic bands 17 far away from the winding rollers 16 slide through the rigid lumbar support plate 1 and are fixedly connected to the stretch belt 2. A motor 18 is fixedly connected to the outside of the rigid lumbar support plate 1. The drive shaft of the motor 18 actively penetrates the rigid lumbar support plate 1 and is rotatably connected to the inner side wall of the through hole 5. The drive shaft of the motor 18 is coaxially fixedly connected with a driving gear 19.

[0039] By setting the above technical features, when the wearer bends over, during the bending process, the pressure received by the pressure sensor 41 increases. At this time, the drive shaft of the motor 18 drives the driving gear 19 to rotate, the driving gear 19 drives the two transmission gears 20 to rotate, the two transmission gears 20 drive the two winding wheels 14 to rotate, and the two winding wheels 14 relax the first elastic bands 15. When bending over, the distance between the fixing belt 3 and the rigid lumbar support plate 1 becomes larger. The fixing belt 3 pulls the second elastic band 17, and the second elastic band 17 pulls the winding roller 16 to rotate, so as to adjust the tension between the fixing belt 3 and the rigid lumbar support plate 1. The tension of the waist belt can be automatically adjusted when bending over, and there will be no great obstacle when bending over. During the shaping process of the waist belt, the impact on daily life is reduced.

[0040] In order to prevent the lumbar support belt from loosening and falling off due to a large distance being pulled apart during the bending process, an anti-loosening mechanism 28 is further included to prevent the telescopic belt 2 and the rigid lumbar support plate 1 from being too loose and causing the rigid lumbar support plate 1 to fall off. The anti-loosening mechanism 28 includes a first anti-detachment plate 29 and a second anti-detachment plate 30. The first anti-detachment plate 29 is fixedly connected to the rigid lumbar support plate 1, and the second anti-detachment plate 30 is fixedly connected to the telescopic belt 2. A cavity 31 is provided inside the second anti-detachment plate 30. Two anti-detachment gears 32 are rotatably connected inside the cavity 31. The two anti-detachment gears 32 are meshed and connected. Both of the two anti-detachment gears 32 are coaxially fixedly connected with winding wheels 33. Both of the two winding wheels 33 are fixedly wound with traction wires 34. It should be noted that the traction wires 34 are rigid silk threads. The ends of the two traction wires 34 far from the winding wheels 33 both slidably penetrate through the second anti-detachment plate 30 and are fixedly connected to the first anti-detachment plate 29. A blocking member 35 for blocking one of the anti-detachment gears 32 is provided inside the cavity 31. It is worth mentioning that the blocking member 35 includes a baffle 36 slidably connected to the inner side wall of the cavity 31. One end of the baffle 36 close to the anti-detachment gear 32 is fixedly connected with a plurality of teeth 37 matching the anti-detachment gear 32. One end of the baffle 36 far from the anti-detachment gear 32 is fixedly connected with a pull rod 38. Further, a return spring is embedded between the pull rod 38 and the second anti-detachment plate 30. One end of the pull rod 38 far from the baffle 36 slidably penetrates through the second anti-detachment plate 30 and is fixedly connected with a pull handle 39.

[0041] By setting the above technical features, pulling the pull handle 39, the pull handle 39 drives the baffle 36 to move through the pull rod 38, the baffle 36 drives the teeth 37 to move, so that the teeth 37 do not limit the anti-detachment gear 32. Then synchronously pull the two traction wires 34 and adjust to a suitable length. Then, when bending down, the maximum distance between the rigid lumbar support plate 1 and the telescopic belt 2 can be limited, and the loosening and falling off of the lumbar support belt due to a large pulled-apart distance can be avoided.

[0042] Working principle: Press the limit block 26 so that the limit block 26 does not limit the turntable 22. Then rotate the turntable 22. The turntable 22 drives the two rotating shafts 7 to rotate. The rotating shafts 7 drive the middle plate 10 and the side plates 11 to move up and down relatively through the driving gears 9. The middle plate 10 and the side plates 11 drive the two expansion plates 6 to move up and down relatively, thereby increasing the width of the rigid lumbar support plate 1 as a whole until it reaches a suitable position. At this time, pull the pull handle 39. The pull handle 39 drives the baffle 36 to move through the pull rod 38. The baffle 36 drives the teeth 37 to move, so that the teeth 37 do not limit the anti-detachment gear 32. Then synchronously pull the two traction wires 34 and adjust to a suitable length. Then it can be worn.

[0043] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic medical fixing waist belt with an automatic adjustment function, characterized in that: include, A hard waist protection plate (1), wherein both left and right sides of the hard waist protection plate (1) are provided with retractable belts (2), one end of the retractable belt (2) away from the hard waist protection plate (1) is fixedly connected to a fixing belt (3), and a pressure sensor (41) is embedded in the fixing belt (3); A width adjustment mechanism (4) is used to adjust the width of the hard waist protection plate (1), the width adjustment mechanism (4) comprising a through hole (5) provided on the hard waist protection plate (1), two unfolding plates (6) being slidably connected in the through hole (5), two rotating shafts (7) being rotatably connected in the through hole (5), the two rotating shafts (7) being transmission-connected via a gear set (8), the two rotating shafts (7) being coaxially fixedly connected with a driving gear (9) outside, an intermediate plate (10) being provided between the two rotating shafts (7), the intermediate plate (10) The lower end of the intermediate plate (10) is fixedly connected to the lower unfolding plate (6), the two sides of the intermediate plate (10) are respectively provided with tooth grooves meshing with the two driving gears (9), the two sides of the two driving gears (9) are respectively provided with side plates (11), the upper ends of the two side plates (11) are fixedly connected to the upper unfolding plate (6), the two side plates (11) are respectively provided with tooth grooves meshing with the two driving gears (9), and the rear side of the hard waist protection plate (1) is provided with an adjustment mechanism (12) for adjusting one of the rotating shafts (7); The tension adjustment mechanism (13) is used to adjust the tension between the hard waist protection plate (1) and the telescopic belt (2), the tension adjustment mechanism (13) comprising two winding wheels (14), the two winding wheels (14) being respectively connected to the two rotating shafts (7) coaxially for rotation, two first elastic belts (15) being wound around the two winding wheels (14), two winding wheels (16) being arranged on opposite sides of the two winding wheels (14), the two winding wheels (16) being connected to the inner side wall of the through hole (5) for rotation, the two first elastic belts (15) being away from the winding wheels (14) and the inner side wall of the through hole (5). One end of the reel (14) is fixedly wound with two winding wheels (16) respectively, and a second elastic band (17) is fixedly wound outside the two winding wheels (16). One end of the two second elastic bands (17) away from the winding wheels (16) slides through the hard waist protection plate (1) and is fixedly connected to the telescopic belt (2). A motor (18) is fixedly connected to the outside of the hard waist protection plate (1). The drive shaft of the motor (18) actively penetrates the hard waist protection plate (1) and is rotatably connected to the inner wall of the through hole (5). The drive shaft of the motor (18) is coaxially fixedly connected to a power gear (19).

2. The plastic medical fixation belt with an automatic adjustment function according to claim 1, characterized in that: The gear set (8) comprises two mutually meshing transmission gears (20), the two transmission gears (20) being respectively connected to two rotating shafts (7) in a coaxial rotational manner, one of the transmission gears (20) being meshingly connected to a power gear (19), and the two transmission gears (20) being respectively fixedly connected to two winding wheels (14).

3. The plastic medical fixing belt with an automatic adjustment function according to claim 1, characterized in that: The adjusting mechanism (12) includes a fixed block (21) fixedly connected to the outer wall of the hard lumbar support plate (1). A turntable (22) is rotatably sleeved outside the fixed block (21). One end of one of the rotating shafts (7) rotatably penetrates through the hard lumbar support plate (1) and the fixed block (21) and is fixedly connected to the turntable (22). The fixed block (21) is provided with a limiting member (23) for limiting the turntable (22).

4. The plastic medical fixation belt with an automatic adjustment function according to claim 3, characterized in that: The limiting member (23) includes a limiting groove (24) provided on the side wall of the fixed block (21). An elastic sheet (25) is arranged in the limiting groove (24). A limiting block (26) is fixedly connected to the side of the elastic sheet (25) close to the limiting groove (24). A plurality of pressing holes (27) are provided through the turntable (22). The plurality of pressing holes (27) are distributed in an annular array on the turntable (22).

5. The plastic medical fixation belt with an automatic adjustment function according to claim 1, characterized in that: The first elastic band (15) and the second elastic band (17) located outside the winding wheel (16) are overlapped.

6. The plastic medical fixing waist belt with an automatic adjustment function according to claim 1, characterized in that: The hard lumbar support plate (1) and the telescopic belt (2) are connected by a telescopic cloth. The two expansion plates (6) and the telescopic belt (2) are connected by a telescopic cloth.

7. The plastic medical fixation lumbar support belt with an automatic adjustment function according to claim 1, characterized in that: It further includes an anti-loosening mechanism (28) for preventing the telescopic belt (2) and the hard lumbar support plate (1) from being too loose and causing the hard lumbar support plate (1) to fall off. The anti-loosening mechanism (28) includes a first anti-detachment plate (29) and a second anti-detachment plate (30). The first anti-detachment plate (29) is fixedly connected to the hard lumbar support plate (1). The second anti-detachment plate (30) is fixedly connected to the telescopic belt (2). A cavity (31) is provided in the second anti-detachment plate (30). Two anti-detachment gears (32) are rotatably connected in the cavity (31). The two anti-detachment gears (32) are meshed. Two winding wheels (33) are coaxially and fixedly connected to the two anti-detachment gears (32). Two traction lines (34) are fixedly wound around the two winding wheels (33). One end of each of the two traction lines (34) away from the winding wheel (33) slidably penetrates through the second anti-detachment plate (30) and is fixedly connected to the first anti-detachment plate (29). A blocking member (35) is provided in the cavity (31) for blocking one of the anti-detachment gears (32).

8. The plastic medical fixing waistband with an automatic adjustment function according to claim 7, characterized in that: The blocking member (35) includes a baffle (36) slidably connected to the inner side wall of the cavity (31). A plurality of teeth (37) matching the anti-detachment gear (32) are fixedly connected to the end of the baffle (36) close to the anti-detachment gear (32). A pull rod (38) is fixedly connected to the end of the baffle (36) away from the anti-detachment gear (32). One end of the pull rod (38) away from the baffle (36) slidably penetrates through the second anti-detachment plate (30) and is fixedly connected to a pull handle (39).

9. The plastic medical fixing belt with an automatic adjustment function according to claim 8, characterized in that: A return spring is embedded between the pull rod (38) and the second anti-detachment plate (30).

10. The plastic medical fixation belt with an automatic adjustment function according to claim 1, characterized in that: A suspender (40) is fixedly connected between the fixed belt (3) and the telescopic belt (2) on the same side.

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