Angle adjusting module and head and cervical vertebra posture adjusting device

Abstract

The utility model provides an angle adjusting module. The angle adjusting module comprises an angle adjusting knob, a transmission mechanism and an arc-shaped gear, the transmission mechanism comprises a rack, a first gear and a worm gear, the first gear is in meshed connection with the rack, and the worm gear is in meshed connection with the angle adjusting knob and is in gear transmission with the rack. Meanwhile, the utility model further provides a head and cervical vertebra posture adjusting device. The angle adjusting module is adopted in the head and cervical vertebra posture adjusting device. The angle adjusting module and the head and cervical vertebra posture adjusting device are convenient to operate, high in posture adjusting precision and accord with ergonomics.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument equipment technical field especially, relate to a angle adjustment module and cervical posture adjusting device. BACKGROUND

[0002] When the user does physical examination, the body posture is adjusted based on the examination needs to facilitate the examination from different angles.

[0003] For the examinee, how to adjust the body posture reasonably and quickly to facilitate accurate examination is an important technical problem. When the force state and body state of the examinee are not suitable, the head, cervical vertebra, spine and body organs are unevenly stressed, which makes the local muscles or bones stress concentrated, and the examination is inconvenient.

[0004] In the prior art, a physiotherapy bed is used as a common examination equipment, the examinee lies on the integral physiotherapy bed, and the examiner conducts targeted examination according to the force state and body state of the examinee. The integral physiotherapy bed can adjust and fix the posture of the examinee according to the force state and body state of the examinee.

[0005] In order to facilitate the separate examination of different parts of the examinee, the existing integral type cannot meet the examination needs of different parts of the examinee, and the industry has set the physiotherapy bed to be movable, and has multiple adjustable plates to carry the body of the examinee, which improves the convenience compared with the fixed integral physiotherapy bed.

[0006] However, during the use of the adjustable physiotherapy bed, professional examiners are needed to operate. The examiner judges whether the examinee has high and low shoulders, scoliosis, lordosis and internal rotation according to the professional knowledge in the fields of force state and body state correction in anatomy, and then operates the physiotherapy bed to conduct examination. Since the operation has certain requirements on the operation technology of the examiner, ordinary people, such as the examinee, are not easy to master the operation technology in a short time, which brings inconvenience to the operation and increases the workload of the examiner.

[0007] In addition, the more movable parts of the adjustable physiotherapy bed, the higher the adjustment complexity. Even skilled examiners also need to carefully adjust each parameter according to the examinee's own condition. When the examinee moves the posture, it needs to be adjusted again, which leads to tedious and laborious correction positioning work and takes a long time. Therefore, a new force state and body state correction device is needed to solve the above problems. UTILITY MODEL CONTENT

[0008] In order to solve the technical problems of inconvenient adjustment of the force state and body state of the examinee, complicated operation and low control accuracy in the prior art, the utility model provides an angle adjustment module which is convenient to operate, simple in structure and high in control accuracy.

[0009] An angle adjustment module, comprising an angle adjustment knob; a transmission mechanism, comprising a rack, a first gear meshing connected with the rack, and a worm gear meshing connected with the angle adjustment knob and transmitting power with the rack through the gear; and an arc gear, the first gear meshing connected with the arc gear and the rack at the same time.

[0010] Meanwhile, a cervical vertebra posture adjustment device employing the above angle adjustment module is provided.

[0011] A cervical vertebra posture adjustment device, comprising a first support body; a second support body with an adjustable angle relative to the first support body; an angle adjustment module as described above, the angle adjustment module providing a rotating force to the second support body through the transmission mechanism to adjust the relative angle between the second support body and the first support body.

[0012] Compared with the prior art, the angle adjustment module and the cervical vertebra posture adjustment device provided by the utility model have the following beneficial effects:

[0013] I. The angle adjustment module transmits power through the worm gear interlaced shaft transmission and the gear rack horizontal transmission, so that the power transmission is more uniform, the rotating distance caused by the rotating angle is converted into a horizontal distance through the transmission between the worm gear and the gear rack, and then is restored to the rotating angle through the gear transmission, thereby improving the accuracy and the locking effect.

[0014] II. The relative angle between the second support body for supporting the cervical vertebra and the first support body for supporting the body is accurately controlled by increasing the angle adjustment module, so that the relative adjustment progress between the two is controlled at the gear pitch as the smallest adjustment unit, greatly improving the adjustment progress.

[0015] III. One end of the angle adjustment module adopts a simple angle adjustment knob, which is extremely simple to operate. The person being examined can operate in a foolproof manner without professional technical training, which is simple, fast and convenient to operate. When the second support body is adjusted to the set angle, the rotating force is eliminated, the second support body and the first support body are effectively fixed, the possibility of slipping is avoided, and the reliability is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor, wherein:

[0017] Figure 1 is a head and neck posture adjusting device three-dimensional assembly structure schematic view provided by the embodiment of the utility model;

[0018] Figure 2 is Figure 1 the head and neck posture adjusting device another angle three-dimensional assembly schematic view shown in the embodiment of the utility model;

[0019] Figure 3 is Figure 1 the head and neck posture adjusting device partial three-dimensional exploded schematic view shown in the embodiment of the utility model;

[0020] Figure 4 is Figure 1 the angle adjusting module and the second support body between the cooperation relationship schematic view shown in the embodiment of the utility model;

[0021] Figure 5 is Figure 4 the angle adjusting module and the second support body between another angle cooperation relationship schematic view shown in the embodiment of the utility model;

[0022] Figure 6 is Figure 5 the angle adjusting knob and the transmission mechanism between the cooperation relationship schematic view shown in the embodiment of the utility model;

[0023] Figure 7 is Figure 5 the transmission mechanism and the base between the cooperation relationship schematic view shown in the embodiment of the utility model;

[0024] Figure 8 is Figure 5 the first gear and the arc gear between the cooperation relationship schematic view shown in the embodiment of the utility model; and

[0025] Figure 9A , Figure 9B and Figure 9C the first support body and the second support body relative rotation different state schematic view. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only one embodiment of the utility model, not all the embodiments.

[0027] In addition, if the description of "first", "second" and the like is involved in the embodiments of the utility model, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features with "first" and "second" can explicitly or implicitly include at least one of the features.

[0028] Please refer to Figure 1 andFigure 2 wherein Figure 1 is a head and neck posture adjustment device three-dimensional structure schematic diagram provided by the embodiment of the utility model, Figure 2 is Figure 1 Another angle three-dimensional assembly schematic diagram of the head and neck posture adjustment device shown in the figure. The head and neck posture adjustment device 1 comprises a first support body 11, a second support body 13, an angle adjustment module 15 and a base 17. The first support body 11 and the angle adjustment module 15 are fixed on the base 17 respectively. The first support body 11 and the second support body 13 are arranged in abutment with each other. The angle adjustment module 15 is fixedly connected with the second support body 13 and transmits the rotating force to drive the second support body 13 to rotate to a set angle relative to the first support body 11.

[0029] Please refer to Figure 3 , is Figure 2 The head and neck posture adjustment device is partially shown in the figure. The base 17 is used for fixing and supporting the head and neck posture adjustment device 1. In the embodiment, the base 17 is a single horizontal layer plate, and in other embodiments, the base 17 can also be any horizontal plane, which can be an outdoor ground, an indoor ground, other devices or structures with a horizontal surface, etc.

[0030] The first support body 11 is used to support the body of the examinee. The body curve of the examinee is consistent with the surface of the inclined surface 113, which is suitable for the lying posture of the human body and avoids the force concentration caused by the body posture. The first support body 11 is in a whole inclined ladder structure, which comprises a bottom surface 111, an inclined surface 113 and a side surface 115.

[0031] The bottom surface 111 is arranged in parallel to the horizontal plane, the side surface 115 connects the bottom surface 111 and the inclined surface 113, the inclined surface 113 is arranged in inclined extension relative to the bottom surface 111, and the transition surface between the two ends of the inclined surface 113 is in a human body curve transition. In the embodiment, the bottom surface 111 is provided with a plurality of threaded holes, and the first support body 11 is fixed on the base 17 by bolts. In other embodiments, the bottom surface 111 and the base 17 can also be fixed by an adhesive or welding.

[0032] The second support body 13 comprises a functional surface and two frame bodies. The functional surface 131 is a curved surface consistent with the outer contour of the human head and the surface curve of the cervical vertebrae, one end of which is suspended, and the other end is in abutment with the first support body 11. Two frame bodies 135 are fixed on the opposite sides of the functional surface 131 respectively and are movably connected with the angle adjustment module 15.

[0033] Please refer to Figure 4 and Figure 5 wherein Figure 4is Figure 1 Fig. 4 is a schematic view of the cooperation between the angle adjustment module and the second support body shown in Fig. 1; Figure 5 is Figure 4 Fig. 5 is a schematic view of another angle cooperation between the angle adjustment module and the second support body shown in Fig. 1. The angle adjustment module 15 comprises an angle adjustment knob 151, a transmission mechanism 153, a pivot 157, a mounting seat 158 and a guide mechanism 159. Under the fixed support of the mounting seat 158, the angle adjustment knob 151 drives the transmission mechanism 153, which in turn drives the pivot 157 and the second support body 13 to rotate relative to the first support body 11 in space, and the guide mechanism 159 guides the second support body 13 to rotate along a set trajectory range.

[0034] Fig. 6 is a schematic view of the cooperation between the angle adjustment knob and the transmission mechanism shown in Fig. 1. Figure 6 is Figure 5 Fig. 6 is a schematic view of the cooperation between the angle adjustment knob and the transmission mechanism shown in Fig. 1.

[0035] The bracket 1515 has a square box-shaped structure, with a side end face, an upper end face and a lower end face opposite to the upper end face, and the side end face connects the upper end face and the lower end face. The upper end face and the lower end face are correspondingly provided with first mounting holes 15151, and the side end face is provided with second mounting holes 15153, and the center lines of the first mounting holes 15151 and the second mounting holes 15153 are perpendicular to each other. In this embodiment, the lower end face is provided with a plurality of threaded holes, and the bracket 1515 is fixed to the base 17 by bolts. In other embodiments, the bracket 1515 and the base 17 can also be fixed by adhesive or welding.

[0036] The hand-held rotating end 1511 has a cylindrical structure, with a circular arc side face, an upper circular face and a lower circular face opposite to the upper circular face. The circular arc side face is provided with an anti-slip structure, which is in the form of a flat sawtooth structure in this embodiment. This structure has the advantage of preventing the hand-held rotating end 1511 from slipping when it is held by a hand, thus facilitating rotation. In other embodiments, the anti-slip structure can also be a dense corrugated structure or other structure that increases the contact friction stress.

[0037] The worm 1513 is in a cylindrical structure, which has a diameter smaller than that of the handheld rotating end 1511, one end of which is fixedly connected to the lower circular surface of the handheld rotating end 1511, and the surface of the worm 1513 is provided with helical tooth traces arranged in an axial spiral. The two opposite ends of the worm 1513 are movably mounted in the first mounting hole 15151 through any bearing member, so that part of the helical tooth traces is located between the upper end surface and the lower end surface, and the handheld rotating end 1511 is located on the other side of the upper end surface.

[0038] When the handheld rotating end 1511 is rotated by an external force, the worm 1513 is synchronously rotated in the same direction with the handheld rotating end 1511, and the worm 1513 and the handheld rotating end 1511 are synchronously rotated relative to the support 1515.

[0039] Please refer again to Figure 4 and Figure 5 , the transmission mechanism 153 includes a worm gear 1531, a first gear 1535, a rack 1533, a second gear 1537, and an arc gear 1539. The worm gear 1531 and the second gear 1537 are respectively sleeved on opposite ends of a transmission shaft 152, which is movably mounted in the second mounting hole 15153 of the support 1515 through any bearing member, so that the worm gear 1531 and the first gear 1535 are respectively located on opposite sides of the side end surface of the support 1515.

[0040] The worm gear 1531 is in a disc-shaped structure, and the arc surface of the worm gear 1531 is provided with helical tooth traces arranged in an axial spiral. The helical tooth traces of the worm gear 1531 are correspondingly arranged in mesh with the helical tooth traces of the worm 1513, and the worm gear 1531 and the worm 1513 cooperate to form a staggered shaft gear pair, so that the worm gear 1531 and the worm 1513 are in mesh transmission connection.

[0041] When the worm gear 1531 is meshed and driven by the worm 1513, the second gear 1537 is synchronously rotated in the same direction with the worm gear 1531 and the transmission shaft 152, and the worm gear 1531, the transmission shaft 152, and the second gear 1537 are synchronously rotated relative to the support 1515.

[0042] The two opposite ends of the rack are respectively provided with a first horizontal tooth pattern and a second horizontal tooth pattern, so that the first horizontal tooth pattern and the second horizontal tooth pattern are an integral structure. The first gear 1535 and the second gear 1537 are respectively arranged at the two opposite ends of the rack 1533, so that the first gear 1535 is engaged with the first horizontal tooth pattern, and the second gear 1537 is engaged with the second horizontal tooth pattern. After the second gear 1537 rotates coaxially with the worm gear 1531, the rack 1533 is driven to move horizontally, and then the rack 1533 drives the first gear 1535 to rotate.

[0043] Please refer to Figure 7 , which is Figure 5 The schematic diagram of the cooperation relationship between the transmission mechanism and the base is shown. The rack 1533 is provided with a guide groove 15331 on one side close to the support 1515 and the other side opposite to the one side. The base 17 is provided with a fixed block 171 corresponding to the two sides of the guide groove 15331 of the rack 1533. The fixed block 171 is provided with a sliding block 1711 corresponding to the position of the guide groove 15331. The shape of the sliding block 1711 matches the inner wall of the guide groove 15331, so that the fixed block 171 clamps and fixes the rack 1533, and the sliding block 1711 and the guide groove 15331 can slide relative to each other. When the rack 1533 is driven by gears from different directions, the rack 1533 will move reciprocally relative to the fixed block 171 in the same horizontal direction.

[0044] Along the movement direction of the rack 1533, the base 17 is provided with two limiting blocks 173 corresponding to the opposite ends of the movement path of the rack 1533. When the rack 1533 moves relative to the base 17, if the angle change of the cervical vertebra posture adjusting device 1 is about to exceed the safe range, any end of the rack 1533 will abut against the limiting block 173, the relative movement of the rack 1533 is blocked, preventing the cervical vertebra posture adjusting device 1 from rotating beyond the limit, protecting the cervical vertebra of the person being examined from being damaged due to mechanical failure or other accidents. The overall structure of the cervical vertebra posture adjusting device 1 has high reliability.

[0045] Please refer to Figure 8 , which is Figure 5 The schematic diagram of the cooperation relationship between the first gear and the arc gear is shown. One end of the first gear 1535 is engaged with one end of the rack 1533, and the other end of the first gear 1535 is engaged with the arc gear 1539. When the rack 1533 drives the first gear 1535 to rotate, the arc gear 1539 will be driven to rotate in the opposite direction relative to the first gear 1535.

[0046] The mounting base 158 is a square column, having two opposite working ends and a main body connecting the working ends. The main body supports the pivot 157 horizontally arranged, the distance between the two opposite working ends is matched with the length of the pivot 157, and the opposite ends of the pivot 157 are movably connected with the working ends by any bearing. In the embodiment, the main body is provided with a plurality of threaded holes, and the mounting base 158 is fixed to the base 17 by bolts, thereby providing stable support for the angle change of the second support body 13, so that the force transmission of the angle adjustment module 1 is stable, and the angle adjustment is more accurate. In other embodiments, the mounting base 158 can also be fixed to the base 17 by adhesive or welding.

[0047] The arc gear 1539 is fixedly connected to one end of the pivot 157 and coaxially arranged with the pivot 157. The first gear 1535 is movably connected to the working end of the mounting base 158 by a rotating shaft provided with any bearing. When the arc gear 1539 rotates under the drive of the first gear 1535, the pivot 157 rotates synchronously and in the same direction, and the arc gear 1539 and the pivot 157 rotate relative to the mounting base 158.

[0048] The functional surface 131 and the frame body 135 of the second support body 13 are fixedly connected to the pivot 157, and the frame body 135 is arranged perpendicularly to the pivot 157. When the arc gear 1539 drives the pivot 157 to rotate synchronously and in the same direction, the functional surface 131 and the frame body 135 are further driven to rotate relative to the first support body 11, thereby realizing the relative angle arrangement between them.

[0049] Please refer to Figure 4 and Figure 5 , the guide mechanism 159 includes two horizontal guide rails and two movable guide support shafts. The horizontal guide rails 1591 are fixedly arranged in parallel and spaced apart on the base 17, and each horizontal guide rail 1591 is provided with a hollow long strip-shaped sliding groove in the middle. One end of the movable guide support shaft 1593 is movably connected to the sliding groove 1592, and the opposite end is movably connected to the frame body 135. When the second support body 13 rotates relative to the first support body 11 around the pivot 157, the movable guide support shaft 1593 supports the frame body 135 to rotate smoothly due to the limitation of the sliding groove 1592. The guide mechanism 159 realizes stable rotation of the second support body 13 through the guidance of the movable guide support shaft 1593.

[0050] Please refer to Figures 9A-9C , wherein Figure 9A , Figure 9B and Figure 9CRespectively, the first support body 11 and the second support body 13 are different state diagram of relative rotation. When the head and neck posture adjusting device 1 works, through the interlocking shaft meshing transmission of the worm gear 1531 and the worm 1513, the transmission mechanism 153 receives the rotating force from the angle adjustment knob 151 and converts it into horizontal force, which is transmitted through the second gear 1537, the rack 1533, the first gear 1535 and the arc gear 155 in turn, and then converted into rotating force to drive the pivot 157 to rotate; the pivot 157 receives the rotating force from the transmission mechanism 153 and transmits it to the functional surface 131, driving the functional surface 131 to rotate around the pivot 157. Thus, the rotation of the second support body 13 relative to the first support body 11 is completed.

[0051] Specifically, in actual application, when the person being examined lies on the head and neck posture adjusting device 1, his head corresponds to abut against the functional surface 131, his body corresponds to the inclined surface of the first support body 11, and his hand is close to the angle adjustment module 15.

[0052] Compared with the prior art, the head and neck posture adjusting device of the utility model is provided with a non-electric or non-magnetic angle adjustment module to realize the rotation of the second support body relative to the first support body in space. In specific structural implementation, the force exerted by the hand holding the rotating end is accurately transmitted through the meshing transmission of the worm gear and the worm, the second gear, the rack, the first gear and the arc gear of the transmission mechanism in turn, and then the rotation angle is accurately controlled, which is convenient to operate and accurate in operation. One end of the angle adjustment module adopts a simple angle adjustment knob, which is extremely simple in operability. The person being examined can operate in a foolproof manner without professional technical training, which is simple, fast and convenient to operate.

[0053] More importantly, the transmission of the angle adjustment module is first through the worm gear and worm transmission, the worm has self-locking property and can prevent reverse rotation. The gears at both ends of the transmission mechanism make the force transmission more uniform, the rotation distance caused by the rotation angle is converted into horizontal displacement through the rack, and then converted into rotation angle through the gear again, which improves the accuracy and also improves the locking effect. When the second support body is adjusted to a set angle, the rotating force is eliminated, the second support body and the first support body are effectively fixed, the possibility of slipping is avoided, and the reliability is improved.

[0054] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model. Any equivalent structure or equivalent process conversion using the contents of the utility model specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection range of the utility model.

Claims

1. An angle adjustment module, comprising: The angle-adjusting module comprises: an angle-adjusting knob; a transmission mechanism, comprising: a rack; a first gear connected with the rack in meshing manner; and a worm gear connected with the angle-adjusting knob in meshing manner and driven by the first gear and the rack; and an arc gear, the first gear being connected with the arc gear and the rack in meshing manner.

2. The angle adjustment module of claim 1, wherein, The angle-adjusting knob comprises a hand-held rotating end and a worm gear, one end of the worm gear being fixedly connected with the hand-held rotating end, and the worm gear being arranged in meshing manner with the worm gear.

3. The angle adjustment module of claim 1, wherein, The transmission mechanism further comprises a second gear fixedly connected with the worm gear in coaxial manner, and the first gear and the second gear are arranged at two opposite ends of the rack respectively and connected with the rack in meshing manner.

4. The angle adjustment module of claim 2, wherein, An anti-skid structure is arranged on the outer surface of the hand-held rotating end, and the anti-skid structure is in flat sawtooth shape or dense corrugated shape.

5. A cervical head posture adjustment device, characterized by, The angle-adjusting module comprises: a first support body; a second support body, the relative angle between the first support body and the second support body being adjustable; the angle-adjusting module according to any one of claims 1-4, the angle-adjusting module providing a rotating force to the second support body through the transmission mechanism to adjust the relative angle between the second support body and the first support body.

6. The cervical and occipital attitude adjustment device of claim 5, wherein, The angle-adjusting module further comprises a pivot, the arc gear being coaxial with the pivot, and the pivot rotating synchronously and in the same direction with the arc gear.

7. The cervical and occipital attitude adjustment device of claim 6, wherein, The second support body is fixedly connected with the pivot and rotates synchronously and in the same direction with the pivot.

8. The cervical and occipital attitude adjustment device of claim 6, wherein, The second support body comprises a functional surface and two frame bodies, the frame bodies being arranged in parallel and spaced apart on two opposite sides of the functional surface and extending perpendicularly to the pivot.

9. The cervical posture adjustment device of claim 8, wherein, The angle-adjusting module further comprises a guide mechanism, the guide mechanism comprising two horizontal guide sliding rails and two movable guide support shafts, each of the horizontal guide sliding rails comprising a sliding groove, and one end of each of the movable guide support shafts being movably fixed into the sliding groove and the other end being movably fixed to the frame body.

10. The cervical and occipital attitude adjustment device of claim 5, wherein, The first support body comprises a bottom surface, an inclined surface and a side surface, the bottom surface being arranged in abutment with a horizontal plane, the side surface connecting the bottom surface and the inclined surface, the inclined surface being arranged in inclined extension relative to the bottom surface, and the transition surface between two ends of the inclined surface being in human body curve transition.

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