CN209808918U - Turnover wheel set of double-rail type vertigo treatment swivel chair - Google Patents

Abstract

The utility model discloses a turnover wheel set of a double-track vertigo treatment swivel chair, which comprises a turnover wheel set and a double-track frame; the overturning wheel set comprises a spindle motor, a worm gear reducer, an overturning wheel carrier, an overturning spindle, a first loading wheel, a first suspension wheel, a synchronous belt pulley and a synchronous belt; the first loading wheel and the first suspension wheel are arranged on the overturning wheel frame; the first suspension wheel is connected with the synchronous belt wheel through a shaft system; an output shaft of the spindle motor is fixedly connected with an input shaft of the worm gear reducer; the worm gear reducer is connected with the synchronous belt wheel through a synchronous belt to drive the first suspension wheel to rotate around a central shaft of the double-track rack; the overturning wheel set can run on the double-track frame at high speed, is not limited by positioning points, and can be stopped at any position at any time.

Description

Turnover wheel set of double-rail type vertigo treatment swivel chair

Technical Field

The utility model belongs to the technical field of the medical instrument technique and specifically relates to a turnover wheel group of double track way formula vertigo treatment swivel chair.

Background

The vestibule is the main organ of human body balance, the important structure in the vestibule which is subject to the head position change is the semicircular canal which is divided into a horizontal semicircular canal, an upper semicircular canal and a rear semicircular canal, the planes of the three are mutually vertical, and the head position change of different planes is sensed. When the posture of a human body changes, the stimulation intensity of different semicircular canals is different, and when the stimulation on two sides is unbalanced, the eye shake occurs and the direction of the eye shake faces to one side of the strong stimulation. Therefore, corresponding semicircular canals can be stimulated through the acceleration or deceleration rotation of different semicircular canal planes, so that the balance condition of the function of the vestibules at both sides and the corresponding function condition of the semicircular canals can be known through the examination of the eye shock when the acceleration or deceleration rotation of different directions and different planes is carried out. After the dropped otoliths are reset by adopting a specific posture, the positional vertigo symptom of most patients can be clinically cured. The vertigo swivel chair is a device used for fixing a human body to perform function detection of the semicircular canal so as to evaluate the vestibular function.

In the prior art, as shown in chinese patent CN201210149655.6, a vestibule diagnosis and treatment bed is disclosed, which comprises leg pads, a hip pad, a back pad, a head pad, a guide rail and a support frame, wherein connecting rods are arranged at the left and right sides of the hip pad, the tail ends of the connecting rods are movably connected with the guide rail and can freely slide on the guide rail, and the hip pad can be driven by the connecting rods to turn over up and down by using the axes of the connecting rods as rotating shafts and rotate left and right by using the axes of the guide rail as rotating shafts; the leg pad, the hip pad, the back pad and the head pad are all connected through a three-dimensional steering mechanism, the three-dimensional steering mechanism comprises a base, a connecting piece and a steering element, the base is connected with the connecting piece through the steering element, and the connecting piece can rotate radially and turn over axially in front and back relative to the base under the control of the steering element. The vestibular disease patient can complete each action required by diagnosis and treatment under the drive of the antenatal diagnosis and treatment bed, can effectively control the swing amplitude, time and angle of the diagnosis or treatment action, keep the vestibular stimulation of the patient or the tested person, avoid the passive movement of the head and the whole body and improve the accuracy of diagnosis or treatment; in the prior art, the overturning wheel set is limited by positioning points and cannot be stopped at any position at any time.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the overturning wheel group of the double-track vertigo therapy swivel chair is provided aiming at the defects in the prior art.

The utility model provides a technical scheme that its technical problem adopted is: a turnover wheel set of a double-track vertigo treatment swivel chair comprises a turnover wheel set and a double-track frame; the overturning wheel set comprises a spindle motor, a worm gear reducer, an overturning wheel carrier, an overturning spindle, a first loading wheel, a first suspension wheel, a synchronous belt pulley and a synchronous belt; the first loading wheel and the first suspension wheel are arranged on the overturning wheel frame; the first suspension wheel is connected with the synchronous belt wheel through a shaft system; an output shaft of the spindle motor is fixedly connected with an input shaft of the worm gear reducer; the worm gear reducer is connected with the synchronous belt wheel through a synchronous belt to drive the first suspension wheel to rotate around a central shaft of the double-track rack.

As a further improvement of the turnover wheel set of the double-track type vertigo treating swivel chair, the double-track rack comprises a sleeper, a track pipe A and a track pipe B; the track pipe A and the track pipe B are connected through the sleeper, and the overturning wheel set is connected with the track pipe A and the track pipe B.

As a further improvement of the turning wheel set of the double-track vertigo treating swivel chair, the first bogie wheel comprises a bogie wheel A, a bogie wheel B, a bogie wheel C and a bogie wheel D; the track pipe A is tangent to the inner side of the track pipe B through the bogie wheel A and the bogie wheel B, and the track pipe A is tangent to the inner side of the track pipe C through the bogie wheel C and the bogie wheel D.

As a further improvement of the turnover wheel set of the double-track vertigo treatment swivel chair, the first suspension wheel comprises a suspension wheel A, a suspension wheel B, a suspension wheel C and a suspension wheel D; the suspension wheel A and the suspension wheel B are tangent to the outer side of the track pipe B; and the suspension wheel C and the suspension wheel D are tangent to the outer side of the track pipe A.

As a further improvement of the turnover wheel set of the double-track vertigo treatment swivel chair, the synchronous belt wheels comprise a synchronous belt wheel A, a synchronous belt wheel B, a synchronous belt wheel C and a synchronous belt wheel D; the suspension wheel A and the suspension wheel C are fixedly connected with the synchronous belt wheel A and the synchronous belt wheel C through a shaft system; and the suspension wheel B and the suspension wheel D are fixedly connected with the synchronous belt wheel B and the synchronous belt wheel D through a shaft system.

As a further improvement of the turnover wheel set of the double-track vertigo treatment swivel chair, the synchronous belt comprises a synchronous belt A and a synchronous belt B; the synchronous belt pulley A and the synchronous belt pulley B are connected through a synchronous belt A; and the synchronous pulley C and the synchronous pulley D are connected through a synchronous belt B.

As a further improvement of the turning wheel set of the double-track vertigo treating swivel chair, one end of the synchronous belt wheel A is fixedly connected with an output shaft of the worm gear reducer, and the other end of the synchronous belt wheel A is connected with the synchronous belt wheel B through a synchronous belt A; and the synchronous pulley C and the synchronous pulley D are connected through a synchronous belt B.

As a further improvement of the turnover wheel set of the double-track vertigo treatment swivel chair, the turnover main shaft is connected with the turnover wheel frame through a rolling bearing.

As a further improvement of the overturning wheel set of the double-track type vertigo treating swivel chair, the surface curvature radiuses of the loading wheel A, the loading wheel B, the loading wheel C, the loading wheel D, the suspension wheel A, the suspension wheel B, the suspension wheel C and the suspension wheel D are all equal to the cross section radiuses of the track pipe A and the track pipe B.

As a further improvement of the turnover wheel set of the double-track vertigo treating swivel chair, the surfaces of the loading wheel A, the loading wheel B, the loading wheel C, the loading wheel D, the suspension wheel A, the suspension wheel B, the suspension wheel C and the suspension wheel D are all made of polyurethane or rubber.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the overturning wheel set can independently run, so that the operation is convenient, and the reliability and the safety of the system are obviously improved; when the overturning wheel set runs at a high speed in the double-track frame, the overturning wheel set is not limited by a positioning point, can be stopped at any position at any time, greatly reduces the inertia of a moving body, can realize rapid movement control, and is suitable for occasions of high-speed transformation such as a high-frequency sine pendulum test and the like.

2. The rotator of the vertigo treatment swivel chair has small mass, small motion inertia and improved stability, thereby being beneficial to light and miniaturization; meanwhile, unnecessary mechanical parts are reduced, the weight of the whole equipment is reduced, and the occupied area of the vertigo treatment swivel chair is reduced.

Drawings

Fig. 1 is a schematic three-dimensional structure diagram of a dual-rail vertigo treating swivel chair;

FIG. 2 is a schematic three-dimensional structure of a dual-rail vertigo treating swivel chair;

FIG. 3 is a front view of a dual track vertigo treatment swivel chair;

fig. 4 is a cross-sectional view of a dual-track vertigo treatment swivel chair;

FIG. 5 is a structural section view of the double-track frame;

FIG. 6 is a front view of a dual track frame;

FIG. 7 is a schematic view of the overall structure of the tilting wheel assembly;

FIG. 8 is a schematic structural view of a tilting wheel assembly;

FIG. 9 is a front view of the tumble wheel set;

FIG. 10 is a top plan view of the tumble wheel assembly;

FIG. 11 is a schematic view of the overall structure of the self-turning wheel set;

FIG. 12 is a schematic structural view of a freewheel assembly;

FIG. 13 is a front view of the freewheel assembly;

FIG. 14 is a left side view of the freewheel assembly;

FIG. 15 is a schematic structural view of the rotation assembly;

FIG. 16 is a front view of the rotation assembly;

FIG. 17 is a plan view of the rotation assembly;

FIG. 18 is a schematic view of the safety seat;

FIG. 19 is a schematic view of a head lift button mounting arrangement for the safety seat;

FIG. 20 is a schematic view showing a structure of a seat frame of the safety seat;

FIG. 21 is a schematic view of the head lift mechanism of the safety seat;

fig. 22 is a schematic structural view showing a head forward-tilting protrusion mechanism of the safety seat;

FIG. 23 is a cross-sectional view of the head forward extending mechanism of the safety seat;

FIG. 24 is a front view of the head forward extending mechanism of the safety seat;

FIG. 25 is a schematic view of the head restraint of the safety seat;

fig. 26 is a schematic view of an adjustable armrest for a safety seat.

In the drawings: 1-double-track frame, 2-base, 3-rotation component, 4-turnover wheel group, 5-rotation wheel group, 101-sleeper, 102-track pipe A, 103-track pipe B, 301-rear bracket, 302-left front bracket, 303-right front bracket, 310-upper flange, 311-lower flange, 401-spindle motor, 402-worm reducer, 403-turnover wheel carrier, 404-turnover spindle, 405-bogie wheel A, 406-bogie wheel B, 407-bogie wheel C, 408-bogie wheel D, 409-suspension wheel A, 410-suspension wheel B, 411-suspension wheel C, 412-suspension wheel D, 413-synchronous pulley A, 414-synchronous pulley B, 415-synchronous pulley A, 416-synchronous pulley C, 417-synchronous pulley D, 418-synchronous belt B, 501-rotation motor, 502-self-rotation wheel carrier, 503-rotation gear, 504-rotation main shaft, 505-bogie wheel E, 506-bogie wheel F, 507-bogie wheel G, 508-bogie wheel H, 509-suspension wheel E, 510-suspension wheel F, 511-suspension wheel G, 512-suspension wheel H, 513-transmission gear, 100-safety seat, 610-head lifting button, 611-seat frame, 612-backrest adjusting device, 613-polyurethane foam, 614-four-point safety belt, 615-two-point safety belt, 6-head lifting mechanism, 7-head forward-tilting extending mechanism, 8-head fixing device, 9-adjustable armrest, 6111-supporting frame, 6112-cushion supporting spring, 6113-backrest supporting spring, 6114-handrail mounting bracket, 6115-safety belt anchor point, 61-guide rod, 62-guide rod sliding sleeve, 63-trapezoidal screw rod, 64-trapezoidal nut, 65-push plate, 66-direct current motor, 67-motor bracket, 68-upper limiting frame, 71-base, 72-support rod sleeve, 73-support rod, 74-locking knob A, 75-locking ring, 76-locking knob B, 81-headrest bending sheet, 82-soft sponge, 83-fabric forehead binding band, 91-handrail body, 92-handrail mounting shaft, 93-handle, 94-locking knob C, 95-arm binding band, 96-guide sliding groove and 97 are pedals.

Detailed Description

The present invention will be described in further detail with reference to specific examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1-4, a double-track vertigo therapy swivel chair comprises a double-track frame 1, a base 2, a self-rotating assembly 3, a turning wheel group 4 and a self-rotating wheel group 5; the double-track frame 1 is fixedly connected with the base 2; the turning wheel set 4 and the self-turning wheel set 5 are symmetrically arranged on the double-track rack 1; the rotation assembly 3 is arranged between the turning wheel set 4 and the rotation wheel set 5; during turning movement, the turning wheel group 4, the rotation assembly 3 and the rotation wheel group 5 form a rotor for turning movement, the double-track rack 1 serves as a stator for turning movement to provide movement support, the turning wheel group 4 provides driving force to move along the double-track rack 1, and the rotation wheel group 5 provides supporting force to passively move along the double-track rack 1; during rotation movement, the overturning wheel set 4 is fixed relative to the double-track rack 1 and provides rotation support for the rotation assembly 3, the rotation wheel set 5 is fixed relative to the double-track rack 1 and provides rotation support for the rotation assembly 3 and provides rotation driving force at the same time, and the rotation assembly 3 rotates around the central shaft.

The device can stimulate corresponding semicircular canals through acceleration or deceleration rotation of different semicircular canal planes, so that when acceleration or deceleration rotation is carried out in different directions and different planes, the balance condition of bilateral vestibular functions and the corresponding semicircular canal function condition are detected through eye shock detection, meanwhile, the inertia of a moving body is greatly reduced, rapid motion control can be realized, and the device is suitable for occasions of high-speed transformation of high-frequency sine pendulum tests and the like.

The utility model has high stability, the turning wheel set and the self-turning wheel set can run on the double-track frame at high speed, is not limited by positioning points, and can stop at any position at any time; the turning wheel set and the self-turning wheel set respectively and independently operate, so that the operation is convenient, and the reliability and the safety of the device are obviously improved; meanwhile, the rotator of the vertigo treatment swivel chair has small mass, small motion inertia and improved stability, thereby being beneficial to light and miniaturization; unnecessary mechanical parts are reduced, the weight of the whole equipment is reduced, and the floor area of the vertigo treatment swivel chair is reduced; meanwhile, the turning wheel set 4 and the self-turning wheel set 5 in the device can be separately and independently used.

As shown in fig. 5 and 6, the double-track railway frame 1 includes a sleeper 101, a track pipe a102, and a track pipe B103; the track tube a102 and the track tube B103 are connected by the sleeper 101, and the tumbler group 4 and the tumbler group 5 are connected to the track tube a102 and the track tube B103.

As shown in fig. 7-10, the flipping wheel group 4 includes a spindle motor 401, a worm gear reducer 402, a flipping wheel frame 403, a flipping spindle 404, a first loading wheel, a first hanging wheel, a synchronous pulley, and a synchronous belt.

The first loading wheel and the first suspension wheel are arranged on the overturning wheel frame 403 and are tangent to the track pipes A102 and B103; the first suspension wheel is connected with the synchronous belt wheel through a shaft system; an output shaft of the spindle motor 401 is fixedly connected with an input shaft of the worm gear reducer 402; the worm gear reducer 402 is connected with the synchronous belt pulley through a synchronous belt to drive the first suspension wheel to rotate around the central shaft of the double-track rack 1.

As a further improvement of the turning wheel set of the double-track vertigo treating swivel chair, the first bogie wheel comprises a bogie wheel A405, a bogie wheel B406, a bogie wheel C407 and a bogie wheel D408; the bogie wheels A405 and B406 are tangent to the inside of the track tube B103, and the bogie wheels C407 and D408 are tangent to the inside of the track tube A102.

As the turning wheel group of the double-track vertigo treatment swivel chair, the first suspension wheel comprises a suspension wheel A409, a suspension wheel B410, a suspension wheel C411 and a suspension wheel D412; suspension wheel A409 and suspension wheel B410 are tangent to the outside of orbital tube B103; suspension wheel C411 and suspension wheel D412 are tangent to the outside of orbital tube a 102.

As the turning wheel set of the double-track vertigo therapy swivel chair, the improvement is that the synchronous pulleys comprise a synchronous pulley A413, a synchronous pulley B414, a synchronous pulley C416 and a synchronous pulley D417; the suspension wheel A409 and the suspension wheel C411 are fixedly connected with the synchronous pulley A413 and the synchronous pulley C416 through a shaft system, and when the suspension wheel A409, the suspension wheel C411, the synchronous pulley A413 and the synchronous pulley C416 rotate in the same direction simultaneously; the suspension wheel B410 and the suspension wheel D412 are fixedly connected with the synchronous pulley B414 and the synchronous pulley D417 through a shaft system, and when the suspension wheel B410, the suspension wheel D412, the synchronous pulley B414 and the synchronous pulley D417 rotate in the same direction simultaneously.

As the turning wheel group of the double-track vertigo treatment swivel chair, the improvement is that the synchronous belt comprises a synchronous belt A415 and a synchronous belt B418; the synchronous pulley A413 and the synchronous pulley B414 are connected through a synchronous belt A415 and rotate synchronously; the synchronous pulley C416 and the synchronous pulley D417 are connected through a synchronous belt B418 and rotate synchronously; one end of the synchronous belt pulley A413 is fixedly connected with an output shaft of the worm speed reducer 402 and rotates in the same direction; the other end of the synchronous pulley A413 is connected with the synchronous pulley B414 through a synchronous belt A415 and rotates synchronously; the timing pulley C416 and the timing pulley D417 are connected by a timing belt B418 and rotate in synchronization.

In the turning wheel set of the double-track vertigo therapy swivel chair, the turning main shaft 404 is connected with the turning wheel frame 403 through a rolling bearing, wherein the turning main shaft 404 can freely rotate; the turnover wheel set of the double-track vertigo treatment swivel chair can independently operate, is convenient to operate, and obviously improves the reliability and safety of the system; when the overturning wheel set 4 runs at a high speed in the double-track frame 1, the overturning wheel set is not limited by a positioning point, can be stopped at any position at any time, simultaneously greatly reduces the inertia of a moving body, can realize rapid movement control, and is suitable for occasions of high-speed conversion such as a high-frequency sine pendulum test and the like.

As shown in fig. 11 to 14, the spinning wheel set 5 includes a spinning motor 501, a spinning wheel frame 502, a spinning main shaft 504, and a second bogie wheel and a second suspension wheel connected to the spinning wheel frame 502.

In the self-rotating wheel set of the double-track vertigo treating swivel chair, the second bogie wheel and the second suspension wheel are connected with the self-rotating wheel frame 502 through rolling bearings, so that the second bogie wheel and the second suspension wheel can freely rotate; the rotation main shaft 504 is connected with the rotation wheel frame 502 through a rolling bearing, one end of the rotation main shaft 504 is connected with the rotation motor 501 through a transmission gear, and the other end of the rotation main shaft 504 is fixedly connected with the rotation component 3; when the spinning motor 501 works, the spinning motor 501 drives the spinning spindle 504 to rotate through the transmission gear, and then drives the spinning assembly 3 to rotate.

In the self-turning wheel set 5 of the double-track vertigo treating swivel chair, the transmission gear comprises a self-turning gear 503 and a transmission gear 513; the rotation gear 503 is fixedly connected with an output shaft of the rotation motor 501, and the transmission gear 513 is fixedly connected with the rotation spindle 504.

In the self-turning wheel set 5 of the above-described two-track vertigo treating swivel chair, the second road wheels include road wheel E505, road wheel F506, road wheel G507 and road wheel H508; the loading wheel E505 and the loading wheel F506 are arranged on one side of the self-rotating wheel frame 502 and are tangent to the inner side of the track pipe B103; the loading wheels G507 and H508 are disposed on the other side of the swivel frame 502 and are tangent to the inner side of the rail pipe a 102.

In the self-turning wheel set 5 of the above-mentioned two-rail vertigo treating swivel chair, the second suspension wheel includes suspension wheel E509, suspension wheel F510, suspension wheel G511 and suspension wheel H512; the suspension wheel E509 and the suspension wheel F510 are arranged on one side of the swivel frame 502 and tangent to the outer side of the track pipe B103; the suspension wheel G511 and the suspension wheel H512 are arranged on the other side of the swivel frame 502 and tangent to the outer side of the rail pipe a 102.

As a further improvement of the above-mentioned dual-track vertigo treating swivel chair, the surface curvature radii of the heavy wheel a405, the heavy wheel B406, the heavy wheel C407, the heavy wheel D408, the heavy wheel E505, the heavy wheel F506, the heavy wheel G507, the heavy wheel H508, the suspension wheel a409, the suspension wheel B410, the suspension wheel C411, the suspension wheel D412, the suspension wheel E509, the suspension wheel F510, the suspension wheel G511 and the suspension wheel H512 are all equal to the cross-sectional radii of the track tube a102 and the track tube B103, so that the two connected to each other are tightly attached to each other, and at the same time, the freedom of movement of the flipping wheel group 4 and the spinning wheel group 5 with respect to the dual-track frame 1 is restricted, and only the freedom along the central axis of the dual-track frame 1 is retained.

As a further improvement of the double-track vertigo therapy swivel chair, the surfaces of the road wheel a405, the road wheel B406, the road wheel C407, the road wheel D408, the road wheel E505, the road wheel F506, the road wheel G507, the road wheel H508, the suspension wheel a409, the suspension wheel B410, the suspension wheel C411, the suspension wheel D412, the suspension wheel E509, the suspension wheel F510, the suspension wheel G511 and the suspension wheel H512 are all made of polyurethane or rubber; the polyurethane material or the rubber material is adopted, so that on one hand, the friction force with the double-track rack 1, namely the overturning driving force, is increased, and the shock absorption is realized; on the other hand, the fault tolerance of the double-track rack 1 is improved, and the processing requirement on the surface of the double-track rack 1 is reduced.

As shown in fig. 15-17, as a further improvement of the above-mentioned dual-track type vertigo treating swivel chair, the rotation assembly 3 comprises a rear bracket 301, a left front bracket 302, a right front bracket 303, an upper flange 310 and a lower flange 311; the upper flange 310 is fixedly connected with the rotation main shaft 504, and the lower flange is fixedly connected with the turnover main shaft 404; the rear support 301, the left front support 302 and the right front support 303 are arranged at an angle of 120 degrees with respect to each other, and the rear support 301, the left front support 302 and the right front support 303 are distributed in axial symmetry, so that the center of gravity is on a rotating central shaft, the rotational inertia is low, the load of a rotation motor is reduced, the centrifugal force is eliminated, and the rotation stability is improved.

As the rotation assembly for the double-track vertigo treating swivel chair, the rotation assembly 3 further comprises a safety seat 100, and the safety seat 100 is fixed in the rear bracket 301, the left front bracket 302 and the right front bracket 303.

As shown in fig. 18 to 26, as a further improvement of the above-mentioned safety seat for the vertigo treating swivel chair, the safety seat 100 includes a seat frame 611, a backrest adjusting device 612, a urethane foam 613, a four-point seat belt 614, a two-point seat belt 615, a head lifting mechanism 6, a head forward tilting extension mechanism 7, a head fixing device 8, an adjustable armrest 9 and a footrest 97. The safety seat 100 in this embodiment is not limited to use with a dual track, vertigo treatment swivel chair, but may be used with other types of vertigo treatment swivel chairs, and it should be noted that modifications and embellishments may be made by those skilled in the art without departing from the present principles, and such modifications and embellishments should also be considered as within the scope of the present application.

As shown in fig. 20, as a further improvement of the seat frame for the vertigo treating swivel chair, the seat frame 611 includes a support frame 6111, a cushion support spring 6112, a backrest support spring 6113, an armrest mounting bracket 6114 and a safety belt anchor point 6115; the support frame 6111 is formed by bending and welding angle steel and steel plates and is connected with the cushion support spring 6112, the backrest support spring 6113, the handrail mounting bracket 6114 and the safety belt anchor point 6115; the cushion support spring 6112 is arranged in the support frame 6111 and is used for supporting the weight of a human body; the backrest support spring 6113 is arranged in the middle of the backrest of the support frame 6111 and is used for leaning of a human body; the armrest mounting frames 6114 are arranged at two sides of the seat frame 611; the safety belt anchor points 6115 are distributed around the seat frame 1 and used for fixing a four-point safety belt and a two-point safety belt.

In the above embodiment, the backrest adjusting device 612 adopts a knob type angle adjusting device, and the backrest angle can be adjusted within the range of 70-120 degrees to adapt to the sitting posture of different patients.

In the above embodiment, four cushion support springs 6112 are provided; the backrest support springs 6113 are provided in two.

In the above embodiment, the polyurethane foam 613 covers the exterior of the seat frame 611, and the shape of the polyurethane foam 613 conforms to the ergonomic design, actively adapts to the natural shape of the human body, and enables the patient to keep a natural and comfortable sitting posture.

In the above embodiment, the four-point harness 614 is fixed to the seat frame 611 by the harness anchor 6115, and is used to fix the trunk portion of the patient's body to the safety seat.

In the above embodiment, the two-point harness 615 is fixed to the seat frame 611 by the harness anchor 6115, and is used to fix the leg of the patient's body to the safety seat.

As shown in fig. 21, the head position elevating mechanism 6 is mainly used for adapting to different head positions of patients with different heights, and the head forward tilting extension mechanism 7 and the head fixing device 8 are integrally adjusted in up-down positions by the head position elevating button 610.

As the head position lifting mechanism for the vertigo treatment swivel chair, the head position lifting mechanism 6 is mounted on the seat frame 611, and the head position lifting mechanism 6 comprises a guide rod 61, a trapezoidal screw 63, a trapezoidal nut 64, a push plate 65 and a direct current motor 66; one end of the guide rod 61 is connected with the head fixing device 8, the other end of the guide rod 61 is connected with the push plate 65, and the push plate 65 is connected with the trapezoidal nut 64; an output shaft of the direct current motor 66 is fixedly connected with the trapezoidal screw 63, wherein the trapezoidal screw 63 and the trapezoidal nut 64 are in screw transmission, and the rotation motion of the trapezoidal screw 63 is changed into the translation motion of the trapezoidal nut 64, so as to drive the guide rod 61 to ascend or descend.

In the above embodiment, the head position lifting mechanism 6 further includes a guide rod sliding sleeve 62, the guide rod sliding sleeve 62 is fixed on the seat frame 611, and the guide rod 61 slides relative to the guide rod sliding sleeve 62.

In the above embodiment, the dc motor 66 is mounted on the seat frame 1 through the motor bracket 67.

In the above embodiment, the upper part of the head lifting mechanism 6 is further provided with an upper limiting frame 68; the upper limit bracket 68 limits the upper limit of the push plate 65.

The use state is as follows: when the head-up device is in the ascending state, the direct current motor 66 rotates in the positive direction, the push plate 65 is driven to slide upwards through the screw transmission of the trapezoidal screw 63 and the trapezoidal nut 64, the head forward-tilting extension mechanism 7 and the head fixing device 8 integrally ascend, and the push plate 65 reaches the highest ascending point and automatically stops when reaching the upper limit frame 68. When the head is in a descending state, the direct current motor 66 rotates reversely, the push plate 65 is driven to slide downwards through the spiral transmission of the trapezoidal screw 63 and the trapezoidal nut 64, the head forward-tilting extension mechanism 7 and the head fixing device 8 descend integrally, and the push plate 65 reaches the lowest descending point when reaching the output end of the direct current motor 66 and stops automatically.

As shown in fig. 22 to 24, in the head forward tilting extension mechanism for the vertigo treating swivel chair, the extension distance of the head fixing device can be adjusted by the head forward tilting extension mechanism 7 in two stages, so as to meet the requirement of adjusting the forward tilting angle of the head of the patient, and the forward tilting angle can be adjusted within the range of 0 to 30 degrees.

The head forward-tilting extension mechanism 7 comprises a base 71, a support rod sleeve 72, a support rod 73, a locking knob A74, a locking ring 75 and a locking knob B76;

the support rod 72 is mounted on the base 71, the support rod sleeve 72 has a hollow structure, one side of the support rod 73 is mounted in the support rod sleeve 72 and slides freely therein, and is fixed in position by a locking ring 75 and a locking knob B76, and the other side of the support rod sleeve 72 is connected to the head fixture 8.

The support rod sleeve 72 is provided with a plurality of grooves, and the support rod sleeve 72 is adjusted in position on the base 71 through the grooves and fixed through a locking knob A74.

The use state is as follows: when the small-amplitude head needs to be inclined forwards, the locking knob A74 is loosened, the supporting rod sleeve 72 is pushed forwards to a proper position, the head fixing device 8 extends out, and the locking knob A74 is screwed, so that the aim of forward inclination of the small-amplitude head is fulfilled; the head forward inclination of larger amplitude is required to be achieved by loosening the locking knob B76, pushing the support rod 73 forward to a proper position, further extending the head fixing device 8 and tightening the locking knob B.

As shown in fig. 25, the head fixing device 8 adopts a design that the flexible pillow piece is matched with a forehead binding band, and completely fixes the head of the patient without interfering with the access of other medical equipment of eyes and ears.

In the above embodiment, the head restraint 8 includes the headrest folding piece 81, the soft sponge 82, and the fabric forehead strap 83. The design of the headrest bent sheet matched with the fabric forehead bandage 83 is adopted, and the head of the patient is completely fixed under the condition that the eyes and other ear diagnosis and treatment equipment are not interfered. The headrest bending piece 81 is made of a bendable manganese steel sheet and is processed into a special shape, so that the requirement of fixing the head at multiple points is met, the ear of a patient is completely exposed, and other diagnosis and treatment equipment can be conveniently connected; the soft sponge 82 covers the surface of the headrest bent sheet 81, so that the comfort of the head of a patient is improved; the fabric forehead bandage 83 is arranged at the front end of the headrest bending piece 81, wherein the fabric forehead bandage 83 is designed to adopt a flexible fabric to match with a magic tape, so that the forehead of the head of a patient can be conveniently and tightly fixed.

As shown in fig. 26, an adjustable armrest 9 on a safety seat for a vertigo treatment swivel chair; the adjustable armrests 9 are connected with the seat frame 611; the adjustable armrest 9 comprises an armrest body 91, an armrest mounting shaft 92, a handle 93 and a locking knob C94; the adjustable armrest 9 is fixed on the seat frame 611 through the armrest mounting shaft 92, the armrest body 91 is provided with a guide sliding groove 96, and the handle 93 is mounted in the guide sliding groove and locked by the locking knob C94.

In the above embodiment, the adjustable armrest 9 further includes an arm strap 95, and the arm strap 95 is sleeved on the armrest body 1.

In use, the adjustable armrest 9 is fixed on the seat frame 611 through the armrest mounting shaft 92, a patient places an arm on the armrest body 91, grasps the handle 93, adjusts the position of the handle 93 in the guide chute 96 according to the length of the arm of the patient, and when the position of the handle 93 is adjusted, the handle is fixed through the locking knob C94, and the arm strap 95 further fixes the position of the arm of the patient on the armrest body 91 to prevent the arm from shifting.

In the above embodiment, further, the footrests 97 are mounted on the bottom of the safety seat.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. The utility model provides a tilting wheel group of two rail mounted vertigo treatment swivel chair which characterized in that: comprises a turnover wheel set (4) and a double-track frame (1); the overturning wheel set (4) comprises a spindle motor (401), a worm gear speed reducer (402), an overturning wheel frame (403), an overturning spindle (404), a first loading wheel, a first suspension wheel, a synchronous belt wheel and a synchronous belt; the first loading wheel and the first suspension wheel are arranged on the overturning wheel carrier (403); the first suspension wheel is connected with the synchronous belt wheel through a shaft system; an output shaft of the spindle motor (401) is fixedly connected with an input shaft of the worm gear speed reducer (402); the worm gear reducer (402) is connected with the synchronous belt wheel through a synchronous belt to drive the first suspension wheel to rotate around the central shaft of the double-track rack (1).

2. The tumble wheel set of a dual-rail vertigo treatment swivel chair according to claim 1, characterized in that: the double-track machine frame (1) comprises sleepers (101), a track pipe A (102) and a track pipe B (103); the track pipe A (102) and the track pipe B (103) are connected through the sleeper (101), and the overturning wheel set (4) is connected with the track pipe A (102) and the track pipe B (103).

3. The tumble wheel set of a dual-rail vertigo treatment swivel chair according to claim 2, characterized in that: the first road wheels comprise road wheel A (405), road wheel B (406), road wheel C (407) and road wheel D (408); the loading wheels A (405) and B (406) are tangent to the inner side of the track pipe B (103), and the loading wheels C (407) and D (408) are tangent to the inner side of the track pipe A (102).

4. The tumble wheel set of a dual-rail vertigo treatment swivel chair according to claim 2, characterized in that: the first suspension wheel comprises a suspension wheel A (409), a suspension wheel B (410), a suspension wheel C (411) and a suspension wheel D (412); the suspension wheel A (409) and the suspension wheel B (410) are tangent to the outer side of the track pipe B (103); the suspension wheel C (411) and suspension wheel D (412) are tangent to the outside of the rail pipe a (102).

5. The tumble wheel set of a dual-rail vertigo treatment swivel chair according to claim 4, wherein: the synchronous pulleys comprise a synchronous pulley A (413), a synchronous pulley B (414), a synchronous pulley C (416) and a synchronous pulley D (417); the suspension wheel A (409) and the suspension wheel C (411) are fixedly connected with the synchronous pulley A (413) and the synchronous pulley C (416) through a shaft system; and the suspension wheel B (410) and the suspension wheel D (412) are fixedly connected with the synchronous pulley B (414) and the synchronous pulley D (417) through a shaft system.

6. The tumble wheel set of a dual-rail vertigo treatment swivel chair according to claim 5, characterized in that: the synchronous belt comprises a synchronous belt A (415) and a synchronous belt B (418); the synchronous pulley A (413) and the synchronous pulley B (414) are connected through a synchronous belt A (415); the timing pulley C (416) and the timing pulley D (417) are connected by a timing belt B (418).

7. The tumble wheel set of a dual-rail vertigo treatment swivel chair according to claim 6, wherein: one end of the synchronous pulley A (413) is fixedly connected with an output shaft of the worm gear speed reducer (402), and the other end of the synchronous pulley A (413) is connected with the synchronous pulley B (414) through a synchronous belt A (415); the timing pulley C (416) and the timing pulley D (417) are connected by a timing belt B (418).

8. The tumble wheel set of the dual-rail vertigo treatment swivel chair according to claim 7, wherein: the overturning main shaft (404) is connected with the overturning wheel frame (403) through a rolling bearing.

9. The tumble wheel set of the dual-rail vertigo treatment swivel chair according to claim 3, wherein: the surface curvature radiuses of the load wheel A (405), the load wheel B (406), the load wheel C (407) and the load wheel D (408) are all equal to the cross-sectional radiuses of the track pipe A (102) and the track pipe B (103).

10. The tumble wheel set of a dual-rail vertigo treatment swivel chair according to claim 4, wherein: the suspension wheels a (409), B (410), C (411) and D (412) have surface radii of curvature equal to the cross-sectional radii of the rail tubes a (102) and B (103).