Lumbar vertebra traction bed for traditional Chinese medicine rehabilitation

Abstract

The invention relates to the field of medical instruments, in particular to a lumbar vertebra traction bed for traditional Chinese medicine rehabilitation, which comprises a bed frame, a bed body and a screw rod, a notch is formed in the bed body, a waist padding piece is arranged above the notch, a shaft rod and a rotating rod are coaxially distributed below the waist padding piece in the vertical direction at intervals, the rotating rod is sleeved with a worm gear and a shell, a worm is arranged in the middle of a screw rod, an upper toothed plate is fixedly arranged on the inner top wall of the shell, and the lower end of the shaft rod is connected with a lower toothed plate. A second bearing is connected between the shaft rod and the top wall of the shell, the shaft rod is connected with a third bearing, a first spring is arranged between the second bearing and the third bearing, the upper portion of the shaft rod is in threaded connection with a sleeve, the top of the sleeve is connected with a supporting plate, and the waist padding piece is arranged on the supporting plate. In the initial stage of pulling by manually adjusting the screw rod, the waist padding piece can be synchronously heightened, after the waist padding piece bears certain force of the waist, the lower toothed plate moves downwards and is separated from the upper toothed plate, and therefore the self-adaptive height adjusting step of the waist padding piece is achieved.

Description

Technical Field

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

[0002] Among the non-surgical treatment methods for lumbar diseases, traction is the most commonly used means. It mainly uses mechanical force to pull the intervertebral space, reduce the internal pressure of the intervertebral disc, and thus relieve pain symptoms.

[0003] Existing lumbar traction beds generally adopt manual traction. Since the human lumbar and thoracic vertebrae both have natural curved lines, the natural physiological curve of the human body will be damaged during the traction process, making it difficult for patients to be in a natural and comfortable position for traction, which is not conducive to the treatment of lumbar diseases. Before using the existing horizontal lumbar traction bed, a cushion is used to raise the patient's waist, so that the entire spine is in a better extended position. However, the natural curvature of the lumbar vertebrae of different patients is different, so the required thickness of the cushion is also different. If the thickness is too small, the lifting effect cannot be achieved; if the thickness is too large, discomfort is likely to occur. Therefore, the height adjustment of the cushion will take a lot of time. At the same time, the conventional cushion does not have a heating effect, which is not conducive to promoting blood circulation in the waist and the rehabilitation of the lumbar vertebrae. 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 art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A lumbar traction bed for traditional Chinese medicine rehabilitation, including a bed frame and a bed body arranged on the bed frame. The left and right sides of the bed frame are respectively slidably installed with a left traction frame and a right traction frame. A scissor mechanism is connected between the left traction frame and the right traction frame. A screw rod is arranged on the scissor mechanism, and a hand wheel is arranged at one end of the screw rod. A notch is opened on the right side of the bed body, and a lumbar cushion is arranged above the notch. A driven height adjustment mechanism is connected between the lumbar cushion and the screw rod. The driven height adjustment mechanism includes a shaft rod and a rotating rod that are arranged coaxially up and down and at intervals below the lumbar cushion. The shaft rod axially slides and circumferentially rotates, and the rotating rod is axially fixed and circumferentially rotates. A worm gear and a housing are fixedly sleeved on the rotating rod. A worm is arranged in the middle of the screw rod, and the worm gear meshes with the screw rod. An upper toothed plate is fixedly arranged on the inner top wall of the housing, and a lower toothed plate is arranged below the upper toothed plate. The lower end of the shaft rod penetrates the top wall of the housing and the upper toothed plate and then connects the lower toothed plate, and a second bearing is connected between the shaft rod and the top wall of the housing. A third bearing is connected to the middle of the shaft rod. A first spring is squeezed between the second bearing and the third bearing. A sleeve is threadedly connected to the upper part of the shaft rod. The sleeve axially slides and circumferentially fixes. A support plate is connected to the top of the sleeve, and the lumbar cushion is arranged on the support plate.

[0006] Optionally, it further includes a beam for fixing the bed body. An L-shaped bracket is connected to the lower surface of the beam, and the rotating rod is axially fixed and circumferentially rotatably connected to the L-shaped bracket through a first bearing.

[0007] Optionally, the shaft rod penetrates through the beam. A frame-shaped frame is connected to the upper surface of the beam. The sleeve penetrates through the top wall of the frame-shaped frame. A keyway is provided on the outer wall of the sleeve, and a key is provided on the frame-shaped frame. The sleeve is axially slid and circumferentially fixed through the key connection between the keyway and the key.

[0008] Optionally, a limiting plate is fixedly sleeved on the shaft rod and above the beam. When the limiting plate moves down to abut against the beam, the lower toothed plate is separated from the upper toothed plate.

[0009] Optionally, an electric heating component is provided inside the lumbar cushioning member. A microswitch horizontally distributed is provided above the beam. The microswitch is arranged in the circuit of the electric heating component. A chamfer for triggering the microswitch when moving down is provided at the bottom of the limiting plate.

[0010] Optionally, at least one pair of driven arc-adjusting mechanisms are provided between the lumbar cushioning member and the supporting plate; the driven arc-adjusting mechanism includes side plates fixed on the supporting plate. A vertically distributed guide rail is fixedly provided in the middle of the opposite sides of the side plates. V-shaped rods are hinged at both ends of the opposite sides of the side plates. Connecting columns are provided at the adjacent ends of the V-shaped rods. An adjustable connecting plate is provided on the opposite sides of the side plates. A guide groove is fixedly provided in the middle of the opposite side of the connecting plate. The guide groove is slidably matched with the guide rail. The top of the connecting plate is fixedly connected to the lumbar cushioning member. Groove openings are provided at both lower ends of the connecting plate. The connecting columns are in rolling and sliding fit with the groove openings. The opposite ends of the V-shaped rods are respectively hinged to the lumbar cushioning member through hinge seats.

[0011] Optionally, a cross plate is fixedly provided in the middle of the opposite sides of the connecting plate. A limiting column penetrating through the cross plate is connected to the supporting plate. An anti-detaching block is provided at the top of the limiting column. A second spring is squeezed between the limiting column and located between the cross plate and the supporting plate.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention adds a lumbar cushioning member to the existing manual lumbar traction bed, and connects a driven height-adjusting mechanism between the lumbar cushioning member and the screw rod. In the initial stage of manually adjusting the screw rod for traction, the lumbar cushioning member can be synchronously height-adjusted without additional height adjustment. The operation is simple, time-saving and labor-saving. After the lumbar cushioning member receives a certain force from the waist, the lower toothed plate moves down and separates from the upper toothed plate, so as to realize that the lumbar cushioning member adaptively completes the height-adjusting step, and the screw rod continues to be adjusted for traction; 2. The present invention provides an electric heating component disposed within the lumbar cushioning member, a limiting plate is arranged on the shaft rod, and a chamfer is formed at the bottom of the limiting plate. When the lower tooth plate moves downward, it can trigger the micro switch, that is, when the lumbar cushioning member adaptively completes the height adjustment step, the electric heating component can be automatically turned on. After the waist is separated from the lumbar cushioning member, the lower tooth plate moves upward and returns, and the electric heating component can be automatically turned off, thus avoiding waste of electricity. 3. A driven arc-adjusting mechanism is provided between the lumbar cushioning member and the supporting plate of the present invention. When the middle part of the lumbar cushioning member is pressed, its own opening can be increased and its own arc can be reduced, making the lumbar cushioning member fit the waist more evenly. At the same time, the waist is heated more evenly, improving blood circulation in the waist and promoting lumbar rehabilitation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic view of the first perspective of the present invention; Figure 2 is a schematic view of the second perspective of the present invention; Figure 3 is a schematic structural view of the driven height-adjusting mechanism of the present invention; Figure 4 is Figure 3 a half-sectional view along section A-A; Figure 5 is Figure 4 an enlarged view of part B in; Figure 6 is a schematic structural view of the driven arc-adjusting mechanism of the present invention.

[0014] In the figures: 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-adjusting mechanism; 201, worm; 202, worm gear; 203, rotating rod; 204, L-shaped bracket; 205, first bearing; 206, upper tooth plate; 207, lower tooth plate; 208, shaft rod; 209, second bearing; 210, third bearing; 211, first spring; 212, limiting plate; 213, chamfer; 214, micro switch; 215, frame-shaped frame; 216, key; 217, sleeve; 218, keyway; 219, supporting plate; 220, housing; 3, driven arc-adjusting mechanism; 301, side plate; 302, guide rail; 303, V-shaped rod; 3031, connecting column; 304, connecting plate; 3041, groove opening; 305, guide groove; 306, cross plate; 307, limiting column; 308, anti-detachment block; 309, second spring; 310, hinge seat; 4, lumbar cushioning member. DETAILED DESCRIPTION OF THE INVENTION

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0016] Embodiment: Please refer to Figures 1-6As shown in the figure, the present invention provides a lumbar traction bed for traditional Chinese medicine rehabilitation, which includes a bed frame 1 and a bed body 101 provided on the bed frame 1. On the left and right sides of the bed frame 1, a left traction frame 103 and a right traction frame 104 are respectively slidably installed. A scissor mechanism 105 is connected between the left traction frame 103 and the right traction frame 104. A screw rod 106 for adjusting the distance between the left and right ends of the scissor mechanism 105 is provided on the scissor mechanism 105. One end of the screw rod 106 is connected with a hand wheel 107. By rotating the hand wheel 107, the distance between the left traction frame 103 and the right traction frame 104 can be directly adjusted, so as to achieve the traction effect. Among them, a notch 102 penetrating up and down is opened on the right side of the bed body 101. Above the notch 102, a lumbar cushion 4 with an arc-shaped structure is provided. A driven height adjustment mechanism 2 is connected between the lumbar cushion 4 and the screw rod 106. Specifically, the driven height adjustment mechanism 2 includes a shaft rod 208 and a rotating rod 203 which are arranged coaxially up and down and at intervals below the lumbar cushion 4. The shaft rod 208 axially slides and circumferentially rotates, and the rotating rod 203 is axially fixed and circumferentially rotates. 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 rod 106. The worm gear 202 meshes with the screw rod 106. An upper tooth plate 206 is fixedly provided 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 rod 208 penetrates the top wall of the shell 220 and the upper tooth plate 206 and then 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. A third bearing 210 is connected to the middle of the shaft rod 208. Both the second bearing 209 and the third bearing 210 adopt flat thrust bearings. A first spring 211 is squeezed between the second bearing 209 and the third bearing 210. A sleeve 217 is threadedly connected to the upper part of the shaft rod 208. The sleeve 217 axially slides and is circumferentially fixed. The top of the sleeve 217 is connected with a support plate 219. The lumbar cushion 4 is arranged on the support plate 219. It should be noted that the magnitude of the pre-tightening force of the first spring 211 on the third bearing 210 can be roughly regarded as the force that can act on the lumbar cushion 4 and just touch and press the lumbar cushion 4 to move downward (ignoring the weights of the driven height adjustment mechanism 2 and the lumbar cushion 4).When the lumbar cushion 4 is in the low position and in use, the patient first lies on the above-mentioned lumbar traction bed with the head facing right, and the waist corresponds to the position of the lumbar cushion 4. Then, the straps on the left traction frame 103 are used to bind the parts below the waist, and the straps on the right traction frame 104 are used to bind the parts above the waist. The handwheel 107 is rotated, and the handwheel 107 drives the screw rod 106 to rotate. On the one hand, the screw rod 106 drives the scissor mechanism 105 to deform to adjust the distance between the left and right traction frames. On the other hand, the screw rod 106 drives the worm wheel 202 to rotate. The worm wheel 202 drives the rotating rod 203, the housing 220, and the upper toothed plate 206 to rotate in sequence. The upper toothed plate 206 drives the lower toothed plate 207 to rotate. The lower toothed plate 207 drives the shaft rod 208 to rotate, and the shaft rod 208 drives the sleeve 217 to move upward, so as to realize that the support plate 219 drives the lumbar cushion 4 to move upward. Due to the slack characteristic of the strap itself, the traction can reach a certain distance before the required traction strength can be achieved. And the lumbar cushion 4 itself is convex and has a certain arc. Therefore, the upward movement distance of the lumbar cushion 4 is short. After the lumbar cushion 4 moves upward and presses against the waist, the sleeve 217 will push the shaft rod 208 downward until the lower toothed plate 207 separates from the upper toothed plate 206, so as to realize that the lumbar cushion 4 adaptively completes the height adjustment step. When the screw rod 106 continues to adjust, it will no longer drive the lower toothed plate 207 to rotate, but only drive the scissor mechanism 105 to deform and perform traction; after the traction is completed, the patient gets up directly, the lower toothed plate 207 returns, and the handwheel 107 is rotated in the reverse direction. The handwheel 107 synchronously drives the scissor mechanism 105 to deform and the lumbar cushion 4 to move downward. Since the number of turns of the handwheel 107 required for the deformation of the scissor mechanism 105 is more, the lumbar cushion 4 first descends to the low position. When the screw rod 106 is continuously adjusted, the lumbar cushion 4 will hinder the rotation of the handwheel 107 in the reverse direction because it is difficult to move downward. At this time, the rotation of the handwheel 107 is blocked. The lumbar cushion 4 can be pressed to move the lower toothed plate 207 downward, and then the handwheel 107 is rotated continuously to adjust the distance between the left and right traction frames. After the adjustment is completed, the pressing can be loosened.

[0017] On the basis of the above embodiment, the above-mentioned lumbar traction bed further includes a beam 108 provided on the bed frame 1 for fixing the bed body 101. The direction of the beam 108 is the same as that of the bed body 101. The lower surface of the beam 108 is connected with an L-shaped bracket 204. The rotating rod 203 is axially fixed and circumferentially rotated and connected with the L-shaped bracket 204 through a first bearing 205. Further, the shaft rod 208 penetrates through the beam 108. The upper surface of the beam 108 is connected with a frame-shaped frame 215. The sleeve 217 penetrates through the top wall of the frame-shaped frame 215. A key groove 218 is provided on the outer wall of the sleeve 217. A key 216 is provided on the frame-shaped frame 215. The sleeve 217 is axially slid and circumferentially fixed through the key connection between the key groove 218 and the key 216.

[0018] Based on the above embodiments, a limiting plate 212 is fixedly sleeved on the shaft rod 208 and above the beam 108. When the limiting plate 212 moves downward to abut against the beam 108, the lower toothed plate 207 is disengaged from the upper toothed plate 206. Through this setting, it is possible to avoid the direct contact and friction between the bottom surface of the lower toothed plate 207 and the inner bottom wall of the housing 220 after the lower toothed plate 207 is disengaged from the upper toothed plate 206.

[0019] Based on the above embodiments, an electric heating component is provided inside the lumbar cushioning member 4, and a microswitch 214 distributed horizontally is provided above the beam 108. The microswitch 214 is arranged in the circuit of the electric heating component, and a chamfer 213 for triggering the microswitch 214 when moving downward is provided at the bottom of the limiting plate 212. When the lower toothed plate 207 moves downward, the microswitch 214 can be triggered, that is, when the lumbar cushioning member 4 adaptively completes the height adjustment step, the electric heating component can be automatically turned on. After the waist is separated from the lumbar cushioning member 4 and the lower toothed plate 207 moves upward and returns, the electric heating component can be automatically turned off.

[0020] Based on the above embodiments, the main body of the lumbar cushioning member 4 is made of a plastic material with a certain toughness and capable of bending and deforming. At least a pair of driven arc-adjusting mechanisms 3 are provided between the lumbar cushioning member 4 and the support plate 219. The driven arc-adjusting mechanism 3 includes side plates 301 fixed on the support plate 219. A vertically distributed guide rail 302 is fixedly provided in the middle of the opposite sides of the side plates 301. V-shaped rods 303 are hinged at both ends of the opposite sides of the side plates 301. Connecting columns 3031 are provided at the adjacent ends of the V-shaped rods 303. An adjustable connecting plate 304 is provided on the opposite sides of the side plates 301. A guide groove 305 is fixedly provided in the middle of the opposite side of the connecting plate 304. The guide groove 305 is slidably matched with the guide rail 302. The top of the connecting plate 304 is fixedly connected to the lumbar cushioning member 4. Groove openings 3041 are provided at both lower ends of the connecting plate 304. The connecting columns 3031 are in rolling and sliding fit with the groove openings 3041. The far ends of the V-shaped rods 303 are hinged to the lumbar cushioning member 4 through hinge seats 310. A cross plate 306 is fixedly provided in the middle of the opposite sides of the connecting plate 304. A limiting column 307 penetrating the cross plate 306 is connected to the support plate 219. An anti-detachment block 308 is provided at the top of the limiting column 307. A second spring 309 is squeezed between the limiting column 307 and between the cross plate 306 and the support plate 219. When the middle of the lumbar cushioning member 4 is pressed, the connecting plate 304 can be pushed downward. The connecting plate 304 pushes the connecting column 3031 downward through the groove opening 3041, and the far ends of the V-shaped rods 303 move upward and push the lumbar cushioning member 4, thereby increasing the opening degree of the lumbar cushioning member 4 and reducing the radian of the lumbar cushioning member 4, that is, the curvature of the lumbar cushioning member 4 is smoother, making the lumbar cushioning member 4 fit the waist more evenly. While the fit degree is high, the waist is also heated more evenly. Therefore, it can improve the blood circulation of the waist and promote the rehabilitation of the lumbar spine.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present 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) provided on the bed frame (1). The left and right sides of the bed frame (1) are respectively slidably installed with a left traction frame (103) and a right traction frame (104). A scissor mechanism (105) is connected between the left traction frame (103) and the right traction frame (104). A screw rod (106) is provided on the scissor mechanism (105), and a hand wheel (107) is provided at one end of the screw rod (106); characterized in that: A notch (102) is provided on the right - hand side of the bed body (101). Above the notch (102), there is a lumbar pad (4). A driven height - adjusting mechanism (2) is connected between the lumbar pad (4) and the screw rod (106). The driven height - adjusting mechanism (2) includes a shaft rod (208) and a rotating rod (203) which are arranged coaxially up and down and at intervals below the lumbar pad (4). The shaft rod (208) axially slides and circumferentially rotates. The rotating rod (203) is axially fixed and circumferentially rotates. A worm gear (202) and a housing (220) are fixedly sleeved on the rotating rod (203). A worm (201) is provided in the middle of the screw rod (106). The worm gear (202) meshes with the screw rod (106). An upper toothed plate (206) is fixedly provided on the inner top wall of the housing (220). A lower toothed plate (207) is provided below the upper toothed plate (206). The lower end of the shaft rod (208) passes through the top wall of the housing (220) and the upper toothed plate (206) and then connects to the lower toothed plate (207). And a second bearing (209) is connected between the shaft rod (208) and the top wall of the housing (220). A third bearing (210) is connected to the middle of the shaft rod (208). A first spring (211) is squeezed between the second bearing (209) and the third bearing (210). A sleeve (217) is threadedly connected to the upper part of the shaft rod (208). The sleeve (217) axially slides and is circumferentially fixed. The top of the sleeve (217) is connected to a support plate (219). The lumbar pad (4) is arranged on the support plate (219).

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

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

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

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

6. The lumbar traction bed for traditional Chinese medicine rehabilitation according to claim 1, wherein: At least one pair of driven arc-adjusting mechanisms (3) are provided between the lumbar cushioning member (4) and the supporting plate (219); the driven arc-adjusting mechanism (3) includes side plates (301) fixed on the supporting plate (219), a vertically distributed guide rail (302) is fixedly provided in the middle of the opposite sides of the side plates (301), V-shaped rods (303) are hinged at both ends of the opposite sides of the side plates (301), connecting columns (3031) are provided at the adjacent ends of the V-shaped rods (303), an adjustable connecting plate (304) is provided on the opposite sides of the side plates (301), a guide groove (305) is fixedly provided in the middle of the opposite side of the connecting plate (304), the guide groove (305) is in sliding fit with the guide rail (302), the top of the connecting plate (304) is fixedly connected to the lumbar cushioning member (4), grooves (3041) are formed at both lower ends of the connecting plate (304), the connecting columns (3031) are in rolling and sliding fit with the grooves (3041), and the opposite ends of the V-shaped rods (303) are hinged to the lumbar cushioning member (4) through hinge seats (310).

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

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