A lumbar traction bed for traditional Chinese medicine rehabilitation

Abstract

The present invention relates to the field of medical devices, specifically a lumbar traction bed for traditional Chinese medicine rehabilitation, comprising a bed frame, a bed body and a screw; the bed body is provided with a notch, a lumbar pad is provided above the notch, a shaft and a rotating rod are coaxially and spaced apart below the lumbar pad, a worm gear and a housing are sleeved on the rotating rod, a worm is provided in the middle of the screw, an upper tooth plate is fixedly provided on the inner top wall of the housing, the lower end of the shaft is connected to the lower tooth plate, a second bearing is connected between the shaft and the top wall of the housing, a third bearing is connected to the shaft, a first spring is provided between the second bearing and the third bearing, a sleeve is threadedly connected to the upper part of the shaft, a support plate is connected to the top of the sleeve, and the lumbar pad is provided on the support plate. The present invention can synchronously raise the lumbar pad in the initial stage of manually adjusting the screw for traction, and after the lumbar pad is subjected to a certain force from the waist, the lower tooth plate moves downward and separates from the upper tooth plate, thereby realizing the lumbar pad's adaptive height adjustment step.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, in particular to a lumbar traction bed for traditional Chinese medicine rehabilitation. Background Art

[0002] Among the non-surgical treatments for lumbar spondylosis, traction is the most commonly used method, which mainly uses mechanical force to pull the intervertebral space to reduce the internal pressure of the intervertebral disc and thus relieve pain symptoms.

[0003] Existing lumbar traction beds generally use manual traction. Since the human lumbar and thoracic vertebrae have natural curvatures, the traction process will disrupt the body's natural physiological curves, making it difficult for patients to maintain a natural and comfortable position during traction, which is not conducive to the treatment of lumbar diseases. Existing horizontal lumbar traction beds use a cushion to elevate the patient's waist before use, so that the entire spine is in a better extended position. However, the natural curvature of the lumbar spine varies from patient to patient, so the required cushion thickness is also different. Too little thickness will not achieve the desired effect, while too much thickness will easily cause discomfort. Therefore, the cushion adjustment is time-consuming. At the same time, conventional cushions do not have a heating effect, which is not conducive to promoting blood circulation in the waist and lumbar recovery. Summary of the Invention

[0004] The purpose of the present invention is to provide a lumbar traction bed for traditional Chinese medicine rehabilitation to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a lumbar traction bed for rehabilitation of traditional Chinese medicine, comprising a bed frame and a bed body arranged on the bed frame, wherein a left traction frame and a right traction frame are slidably mounted on the left and right sides of the bed frame respectively, a scissor mechanism is connected between the left traction frame and the right traction frame, a screw is provided on the scissor mechanism, and a hand wheel is provided at one end of the screw; a notch is provided on the right side of the bed body, a lumbar pad is provided above the notch, and a driven height adjustment mechanism is connected between the lumbar pad and the screw; the driven height adjustment mechanism comprises a shaft rod and a rotating rod which are arranged below the lumbar pad, coaxially and spaced apart along the upper and lower axes, and the shaft rod slides axially and rotates circumferentially The worm gear is fixed in the middle of the screw and meshes with the screw. The inner top wall of the shell is fixed with an upper tooth plate, and a lower tooth plate is provided below the upper tooth plate. The lower end of the shaft rod passes through the top wall of the shell and the upper tooth plate and is connected to the lower tooth plate. A second bearing is connected between the shaft rod and the top wall of the shell. The middle of the shaft rod is connected to a third bearing, and a first spring is squeezed between the second bearing and the third bearing. The upper part of the shaft rod is threadedly connected to a sleeve, and the sleeve slides axially and is fixed circumferentially. The top of the sleeve is connected to a support plate, and the waist pad is provided on the support plate.

[0006] Optionally, it further includes a beam for fixing the bed, the lower surface of the beam is connected to an L-shaped bracket, and the rotating rod is connected to the L-shaped bracket for axial fixation and circumferential rotation through a first bearing.

[0007] Optionally, the shaft rod is arranged to pass through the beam, the upper surface of the beam is connected to a frame, the sleeve passes through the top wall of the frame, the outer wall of the sleeve is provided with a key groove, the frame is provided with a key, and the sleeve is axially slid and circumferentially fixed through the key connection between the key groove and the key.

[0008] Optionally, a limit plate is fixedly sleeved on the shaft and located above the beam. When the limit plate moves down to abut the beam, the lower tooth plate is disengaged from the upper tooth plate.

[0009] Optionally, an electric heating component is provided in the lumbar pad, a horizontally distributed micro switch is provided above the beam, the micro switch is set in the circuit of the electric heating component, and the bottom of the limit plate is provided with a chamfer that triggers the micro switch when moving downward.

[0010] Optionally, at least one pair of driven arc adjustment mechanisms are provided between the waist pad and the support plate; the driven arc adjustment mechanism includes side panels fixed on the support plate, vertically distributed guide rails are fixedly provided in the middle of the opposite sides of the side panels, V-shaped rods are hinged at both ends of the opposite sides of the side panels, and connecting columns are provided at the adjacent ends of the V-shaped rods. Connecting plates that can be adjusted up and down are provided on the opposite sides of the side panels, and guide grooves are fixed in the middle of the opposite sides of the connecting plates, and the guide grooves slide in conjunction with the guide rails. The top of the connecting plate is fixedly connected to the waist pad, and groove openings are provided at both ends of the lower part of the connecting plate, and the connecting columns roll and slide in conjunction with the groove openings, and the opposite ends of the V-shaped rods are hinged to the waist pad through hinge seats.

[0011] Optionally, a horizontal plate is fixedly provided in the middle of the opposite side of the connecting plate, a limiting column is connected to the supporting plate and passes through the horizontal plate, an anti-slip block is provided at the top of the limiting column, and a second spring is squeezed outside the limiting column and located between the horizontal plate and the supporting plate.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The present invention adds a lumbar pad to the existing manual lumbar traction bed, and connects a driven height adjustment mechanism between the lumbar pad and the screw. During the initial stage of manual adjustment of the screw for traction, the lumbar pad can be raised synchronously, eliminating the need for separate height adjustment. This makes operation simple, time-saving, and labor-saving. After a certain amount of force is applied to the waist, the lower tooth plate of the lumbar pad moves downward and separates from the upper tooth plate, thereby enabling the lumbar pad to adaptively complete the height adjustment step, while the screw continues to adjust and traction is performed.

[0014] 2. The present invention installs an electric heating component in the lumbar pad, and a limit plate is provided on the shaft. The bottom of the limit plate is chamfered. When the lower tooth plate moves downward, it triggers a micro switch. That is, when the lumbar pad is adaptively adjusted and the height adjustment step is completed, the electric heating component is automatically turned on. After the waist is separated from the lumbar pad, the lower tooth plate moves up and returns to the original position, automatically turning off the electric heating component, thus avoiding electricity waste.

[0015] 3. The present invention provides a driven arc adjustment mechanism between the waist pad and the support plate, which can increase its own opening and reduce its own curvature when the middle part of the waist pad is under pressure, so that the waist pad fits the waist more evenly, and at the same time makes the waist heated more evenly, improves waist blood circulation and promotes lumbar spine recovery. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the first viewing angle of the present invention;

[0017] Figure 2 A second perspective schematic diagram of the present invention;

[0018] Figure 3 Schematic diagram of the structure of the driven height adjustment mechanism in the present invention;

[0019] Figure 4 for Figure 3 Half section along section AA;

[0020] Figure 5 for Figure 4 Enlarged view of middle part B;

[0021] Figure 6 It is a structural schematic diagram of the driven arc regulating mechanism in the present invention.

[0022] In the figure: 1. Bed frame; 101. Bed body; 102. Notch; 103. Left traction frame; 104. Right traction frame; 105. Scissor mechanism; 106. Screw; 107. Handwheel; 108. Beam; 2. Driven height adjustment mechanism; 201. Worm; 202. Worm gear; 203. Rotating rod; 204. L-shaped bracket; 205. First bearing; 206. Upper gear plate; 207. Lower gear plate; 208. Shaft; 209. Second bearing; 210. Third bearing; 211. First spring; 212. Limit plate; 213, chamfer; 214, micro switch; 215, frame; 216, key; 217, sleeve; 218, keyway; 219, support plate; 220, housing; 3, driven arc adjustment mechanism; 301, side plate; 302, guide rail; 303, V-shaped rod; 3031, connecting column; 304, connecting plate; 3041, groove; 305, guide groove; 306, cross plate; 307, limit column; 308, anti-slip block; 309, second spring; 310, hinge seat; 4, waist pad. DETAILED DESCRIPTION

[0023] 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.

[0024] Example: See Figure 1-6As shown, the present invention provides a lumbar traction bed for Traditional Chinese Medicine rehabilitation, comprising a bed frame 1 and a bed body 101 mounted on the bed frame 1. A left traction frame 103 and a right traction frame 104 are slidably mounted on the left and right sides of the bed frame 1, respectively. A scissor mechanism 105 is connected between the left and right traction frames 103 and 104. The scissor mechanism 105 is provided with a screw 106 for adjusting the distance between the left and right ends of the scissor mechanism 105. One end of the screw 106 is connected to a handwheel 107. By rotating the handwheel 107, the distance between the left and right traction frames 103 and 104 can be directly adjusted, thereby achieving a traction effect. A notch 102 extending vertically through the right side of the bed body 101 is provided. An arc-shaped lumbar pad 4 is provided above the notch 102. A driven height adjustment mechanism 2 is connected between the lumbar pad 4 and the screw 106. Specifically, the driven height adjustment mechanism 2 includes a shaft 208 and a rotating rod 203 arranged below the waist pad 4, coaxially and spaced apart from each other. The shaft 208 slides axially and rotates circumferentially, and the rotating rod 203 is fixed axially and rotates circumferentially. A worm gear 202 and a cylindrical shell 220 are fixedly sleeved on the rotating rod 203. A worm 201 is provided in the middle of the screw 106. The worm gear 202 is engaged with the screw 106. An upper tooth plate 206 is fixed on the inner top wall of the shell 220. A lower tooth plate 207 is provided below the upper tooth plate 206. The lower end of the shaft 208 passes through the shell 220. The top wall and upper toothed plate 206 are connected to the lower toothed plate 207. A second bearing 209 is connected between the shaft 208 and the top wall of the housing 220. A third bearing 210 is connected to the middle portion of the shaft 208. Both the second and third bearings 209 and 210 are planar thrust bearings. A first spring 211 is squeezed between the second and third bearings 209 and 210. A sleeve 217 is threadedly connected to the upper portion of the shaft 208. The sleeve 217 slides axially and is fixed circumferentially. The top of the sleeve 217 is connected to a support plate 219, on which the waist pad 4 is mounted. It should be noted that the magnitude of the preload force exerted by the first spring 211 on the third bearing 210 can be roughly regarded as the force that can act on the waist pad 4 and just contact the waist pad 4 when it moves downward (ignoring the weight of the driven height adjustment mechanism 2 and the waist pad 4).When the lumbar pad 4 is in the low position and is used, the patient first lies on the above-mentioned lumbar traction bed with his head facing right, with his waist corresponding to the position of the lumbar pad 4, and then uses the straps on the left traction frame 103 to bind the part below the waist, and uses the straps on the right traction frame 104 to bind the part above the waist, and turns the hand wheel 107, which drives the screw 106 to rotate. On the one hand, the screw 106 drives the scissor mechanism 105 to deform to adjust the distance between the left and right traction frames, and on the other hand, The worm gear 202 is driven to rotate, and the worm gear 202 in turn drives the rotating rod 203, the housing 220 and the upper tooth plate 206 to rotate, the upper tooth plate 206 drives the lower tooth plate 207 to rotate, and the lower tooth plate 207 drives the shaft 208 to rotate, and the shaft 208 drives the sleeve 217 to move upward, so that the support plate 219 drives the waist pad 4 to move upward. Due to the looseness of the strap itself, it will take a certain distance for the traction to reach the required pulling strength, and the waist pad 4 itself is convex and has a certain curvature, so The upward movement distance of the waist pad 4 is relatively short. After the waist pad 4 moves up and presses against the waist, the sleeve 217 will push the shaft 208 downward in the opposite direction until the lower tooth plate 207 is separated from the upper tooth plate 206, thereby realizing the adaptive height adjustment step of the waist pad 4. When the screw 106 continues to adjust, it will no longer drive the lower tooth plate 207 to rotate, but only drive the scissor mechanism 105 to deform and perform traction. After the traction is completed, the patient stands up directly, the lower tooth plate 207 returns, and the hand wheel 107 is rotated in the opposite direction. 07 synchronously drives the scissor mechanism 105 to deform and the waist pad 4 to move downward. Since the scissor mechanism 105 requires more turns of the handwheel 107 to deform, the waist pad 4 first drops to a low position. When the screw 106 is continued to be adjusted, the waist pad 4 is difficult to move downward and will hinder the rotation of the handwheel 107 in the reverse direction. At this time, the rotation of the handwheel 107 is blocked. You can press the waist pad 4 to move the lower tooth plate 207 downward, and then continue to turn the handwheel 107 to adjust the distance between the left and right traction frames. After the adjustment is completed, loosen the press.

[0025] Based on the above embodiment, the lumbar traction bed further comprises a beam 108 disposed on the bed frame 1 for fixing the bed body 101. The direction of the beam 108 is consistent with that of the bed body 101. The lower surface of the beam 108 is connected to an L-shaped bracket 204. The rotating rod 203 is connected to the L-shaped bracket 204 via a first bearing 205 for axial fixation and circumferential rotation. Furthermore, the shaft 208 is disposed through the beam 108. The upper surface of the beam 108 is connected to a frame 215. A sleeve 217 extends through the top wall of the frame 215. The outer wall of the sleeve 217 is provided with a key slot 218. The frame 215 is provided with a key 216. The sleeve 217 is axially slidable and circumferentially fixed through the key connection between the key slot 218 and the key 216.

[0026] In addition to the above embodiment, a limit plate 212 is fixedly mounted on the shaft 208 above the beam 108. When the limit plate 212 moves downward to abut the beam 108, the lower tooth plate 207 is separated from the upper tooth plate 206. This arrangement prevents the bottom surface of the lower tooth plate 207 from directly contacting the inner bottom wall of the housing 220 and causing friction after the lower tooth plate 207 is separated from the upper tooth plate 206.

[0027] In addition to the above embodiment, the lumbar pad 4 is equipped with an electric heating assembly. A horizontally distributed microswitch 214 is located above the beam 108 and is located within the electric heating assembly's circuit. The bottom of the limit plate 212 has a chamfer 213 that triggers the microswitch 214 when it moves downward. The microswitch 214 is triggered when the lower tooth plate 207 moves downward, automatically turning on the electric heating assembly when the lumbar pad 4 has adaptively adjusted its height. When the waist is free of the lumbar pad 4, the lower tooth plate 207 moves upward and returns to its original position, automatically turning off the electric heating assembly.

[0028] On the basis of the above embodiment, the main body of the waist pad 4 is made of a plastic material with a certain toughness and bendability, and at least one pair of driven arc adjustment mechanisms 3 is provided between the waist pad 4 and the support plate 219. The driven arc adjustment mechanism 3 includes a side plate 301 fixed on the support plate 219, and a vertically distributed guide rail 302 is fixed in the middle of the opposite side of the side plate 301, and V-shaped rods 303 are hinged at both ends of the opposite side of the side plate 301, and connecting columns 3031 are provided at the adjacent ends of the V-shaped rods 303. The opposite side of the side plate 301 is provided with a connecting plate 304 which can be adjusted up and down, and a guide groove 305 is fixed in the middle of the opposite side of the connecting plate 304, and the guide groove 305 slides with the guide rail 302. The top of the connecting plate 304 is fixedly connected to the waist pad 4, and groove openings 3041 are provided at both ends of the lower part of the connecting plate 304. The connecting column 3031 rolls and slides with the groove opening 3041, and the opposite end of the V-shaped rod 303 is hinged to the waist pad 4 through a hinge seat 310. A transverse plate 306 is fixedly mounted in the middle of the opposite side of the connecting plate 304. A limiting post 307 is connected to the support plate 219 and extends through the transverse plate 306. A stopper 308 is provided at the top of the limiting post 307. A second spring 309 is squeezed outside the limiting post 307 and between the transverse plate 306 and the support plate 219. When the middle of the lumbar pad 4 is compressed, the connecting plate 304 is pushed downward. The connecting plate 304 pushes the connecting post 3031 downward through the groove 3041, and the distal end of the V-shaped rod 303 moves upward and pushes the lumbar pad 4, thereby increasing the opening of the lumbar pad 4 and reducing its curvature. In other words, the curvature of the lumbar pad 4 is smoother, allowing the lumbar pad 4 to fit more evenly to the waist. This high fit and more even heating of the waist are achieved, thereby improving blood circulation in the waist and promoting lumbar vertebral recovery.

[0029] 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 lumbar traction bed for traditional Chinese medicine rehabilitation, comprising a bed frame (1) and a bed body (101) arranged on the bed frame (1), wherein a left traction frame (103) and a right traction frame (104) are slidably mounted on the left and right sides of the bed frame (1), a scissor mechanism (105) is connected between the left traction frame (103) and the right traction frame (104), the scissor mechanism (105) is provided with a screw (106), and a hand wheel (107) is provided at one end of the screw (106); characterized in that: A notch (102) is provided on the right side of the bed body (101), a waist pad (4) is provided above the notch (102), and a driven height adjustment mechanism (2) is connected between the waist pad (4) and the screw (106); the driven height adjustment mechanism (2) comprises a shaft (208) and a rotating rod (203) which are provided below the waist pad (4), are coaxial and spaced apart along the upper and lower axes, the shaft (208) slides axially and rotates circumferentially, the rotating rod (203) is fixed axially and rotates circumferentially, a worm gear (202) and a housing (220) are fixedly sleeved on the rotating rod (203), a worm gear (201) is provided in the middle of the screw (106), the worm gear (202) is meshed with the screw (106), and an upper gear is fixedly provided on the inner top wall of the housing (220). Plate (206), a lower tooth plate (207) is provided below the upper tooth plate (206), the lower end of the shaft rod (208) passes through the top wall of the shell (220) and the upper tooth plate (206) and is connected to the lower tooth plate (207), and a second bearing (209) is connected between the shaft rod (208) and the top wall of the shell (220), the middle part of the shaft rod (208) is connected to the third bearing (210), and a first spring (211) is squeezed between the second bearing (209) and the third bearing (210), the upper part of the shaft rod (208) is threadedly connected to a sleeve (217), the sleeve (217) is axially sliding and circumferentially fixed, the top of the sleeve (217) is connected to a support plate (219), and the waist pad (4) is arranged on the support plate (219).

2. A lumbar traction bed for traditional Chinese medicine rehabilitation according to claim 1, characterized in that: It also includes a beam (108) for fixing the bed body (101), the lower surface of the beam (108) is connected to an L-shaped bracket (204), and the rotating rod (203) is connected to the L-shaped bracket (204) through a first bearing (205) in an axially fixed and circumferentially rotatable manner.

3. A lumbar traction bed for traditional Chinese medicine rehabilitation according to claim 2, characterized in that: The shaft (208) is arranged to pass through the beam (108); the upper surface of the beam (108) is connected to a frame (215); the sleeve (217) passes through the top wall of the frame (215); the outer wall of the sleeve (217) is provided with a key groove (218); the frame (215) is provided with a key (216); the sleeve (217) is axially slidably fixed in the circumferential direction through the key connection between the key groove (218) and the key (216).

4. The lumbar traction bed for traditional Chinese medicine rehabilitation according to claim 1, characterized in that: A limit plate (212) is fixedly sleeved on the shaft (208) and located above the beam (108). When the limit plate (212) moves downward to abut against the beam (108), the lower tooth plate (207) is separated from the upper tooth plate (206).

5. A lumbar traction bed for traditional Chinese medicine rehabilitation according to claim 4, characterized in that: An electric heating component is provided in the waist pad (4), a horizontally distributed micro switch (214) is provided above the beam (108), the micro switch (214) is arranged in a circuit of the electric heating component, and a chamfer (213) is provided at the bottom of the limit plate (212) for triggering the micro switch (214) when the limit plate (212) moves downward.

6. The lumbar traction bed for traditional Chinese medicine rehabilitation according to claim 1, characterized in that: At least one pair of driven arc adjustment mechanisms (3) is provided between the waist pad (4) and the supporting plate (219); the driven arc adjustment mechanism (3) comprises a side plate (301) fixed on the supporting plate (219), a vertically distributed guide rail (302) is fixed in the middle of the opposite side of the side plate (301), V-shaped rods (303) are hingedly provided at both ends of the opposite side of the side plate (301), and a connecting column (3031) is provided at the adjacent end of the V-shaped rod (303), and the opposite side of the side plate (301) is provided with a vertically movable guide rail (302) An adjustable connecting plate (304) is provided with a guide groove (305) fixedly provided in the middle of the opposite side of the connecting plate (304), the guide groove (305) and the guide rail (302) are slidably matched, the top of the connecting plate (304) is fixedly connected to the waist pad (4), the lower ends of the connecting plate (304) are provided with groove openings (3041), the connecting column (3031) and the groove openings (3041) are rolled and slidably matched, and the opposite ends of the V-shaped rods (303) are hinged to the waist pad (4) through hinge seats (310).

7. A lumbar traction bed for traditional Chinese medicine rehabilitation according to claim 6, characterized in that: A transverse plate (306) is fixedly provided in the middle of the opposite side of the connecting plate (304), a limiting column (307) penetrating the transverse plate (306) is connected to the supporting plate (219), an anti-slip block (308) is provided at the top of the limiting column (307), and a second spring (309) is squeezed outside the limiting column (307) and located between the transverse plate (306) and the supporting plate (219).

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