CN111329642A

CN111329642A - Medical traction chair capable of achieving bidirectional traction

Info

Publication number: CN111329642A
Application number: CN202010192838.0A
Authority: CN
Inventors: 曾如琼
Original assignee: Individual
Current assignee: Nanjing Jiangbei Hospital
Priority date: 2020-03-18
Filing date: 2020-03-18
Publication date: 2020-06-26
Anticipated expiration: 2040-03-18
Also published as: CN111329642B

Abstract

The invention discloses a medical traction chair with bidirectional traction, which comprises a chair body, wherein the edge of the hip supporting part of the chair body is connected with a movable rod through a fixed shaft, the upper end of the movable rod penetrates through a displacement through groove, the displacement through groove is reserved on the elbow supporting part of the chair body, positioning female teeth are arranged on the inner side of the displacement through groove, the positioning female teeth are meshed with positioning sub teeth, the positioning sub teeth are arranged in a groove, two ends of a spring piece are fixedly connected in the groove, and the middle part of the spring piece is fixedly connected with the end part of the positioning sub teeth extending into the groove. This chair is pull in medical treatment of two-way traction can provide two-way traction force to can be convenient for pull patient's vertebra, and can be convenient for be applicable to the patient of different heights and use, and drive electric drive through manual drive, the reduction fault rate that can be very big, thereby can ensure patient's safety, and reduced the limitation of its use.

Description

Medical traction chair capable of achieving bidirectional traction

Technical Field

The invention relates to the technical field of medical treatment, in particular to a medical traction chair with bidirectional traction.

Background

With the development of science and technology, people gradually depend on electronic products, head lowering families are words generated by depending on electronic products such as mobile phones and computers, and mean that people use the electronic products such as the mobile phones and the computers by lowering heads for a long time, and the common disease of the head lowering families is spondylopathy, because the spine of the head lowering families is deformed by using the electronic products such as the mobile phones and the computers by lowering heads for a long time, so that pathological changes occur;

however, the existing traction chairs have some problems in the using process, such as:

1. the existing traction chair cannot bidirectionally pull the spine, so that the part below the head of a patient can spontaneously move upwards due to discomfort in the process of upwards stretching the head of the patient by the traction device on the traction chair, thereby reducing the traction effect, and the height of the traction device of the existing traction chair is higher, thereby limiting the use position of the traction chair, and preventing the traction chair from being used in the position with limited height;

2. the existing traction chair is driven by electric energy, and the failure rate is higher than that of manual driving, so that the safety of a patient using the traction chair cannot be ensured, and the patient is in danger;

in summary, a medical traction chair with bidirectional traction is designed to solve the above problems.

Disclosure of Invention

The invention aims to provide a medical traction chair with bidirectional traction, which aims to solve the problems that the existing traction chair does not have the function of bidirectional traction and has high failure rate and is not beneficial to the safety of patients in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a medical traction chair with bidirectional traction comprises a chair body, wherein the edge of the hip supporting part of the chair body is connected with a movable rod through a fixed shaft, the upper end of the movable rod penetrates through a displacement through groove and is arranged, the displacement through groove is reserved on the elbow supporting part of the chair body, the inner side of the displacement through groove is provided with a positioning female tooth, the positioning female tooth is meshed with a positioning male tooth and is connected with the positioning male tooth, the positioning male tooth is arranged in a groove, the two ends of a spring piece are fixedly connected in the groove, the middle part of the spring piece is fixedly connected with the end part of the positioning male tooth extending into the groove, the groove is arranged on a supporting transverse bar, the two ends of the supporting transverse bar are respectively fixedly connected to a reinforcing rod and a connecting pipe, the outer side of the connecting pipe is provided with a transmission tooth, the transmission tooth is meshed and connected to the outer side of a second, the reinforcing rod and the connecting pipe are connected in a nested manner, the second transmission gear is connected to the outer side of the lower end of the control piece in a key manner, the lower end of the control piece is connected to the inner portion of the movable rod in a bearing manner, the upper end of the control piece extends out of the top end of the movable rod, the middle of the control piece is connected with the movable rod through a second torsion spring, the inner side of the movable rod is connected with a driving strip through a connecting shaft, the driving strip extends into the inner cavity of the chair body, the part of the driving strip extending into the inner cavity of the chair body is also provided with a driving tooth, the driving tooth is meshed with the first transmission gear, the first transmission gear is connected to the outer side of the end portion of the self-resetting rope winding shaft in a bearing manner, the self-resetting rope winding shaft is connected to the inner cavity of the chair body, one end of a steel wire rope is wound on the self-resetting rope winding shaft, the chair body, the adjusting frame and the supporting frame are all provided with rope running grooves, the upper end and the lower end of the supporting frame are respectively connected with a limiting rod in an embedded and movable manner, the limiting rods at the upper end and the lower end of the supporting frame are respectively fixedly connected to the traction belt supporting block and the shoulder supporting block, a traction belt is connected between the traction belt supporting blocks, the other end of the steel wire rope passes through the steering shaft, the steering shaft is arranged in an inner cavity of the chair body, the other end of the steel wire rope sequentially passes through the rope running grooves on the chair body, the adjusting frame and the supporting frame, the other end of the steel wire rope penetrates through the supporting frame to be wound on the rope winding disc, the rope winding disc is arranged on the traction supporting mechanism, the two ends of the traction supporting mechanism are respectively connected to the shoulder supporting block and the traction belt supporting block, the traction supporting mechanism is arranged on the supporting frame, the top ends of the supporting frame, the outer side of the supporting rod is movably nested with a supporting tube, the inner side of the supporting tube and the outer side of the supporting rod are respectively and fixedly connected with two ends of a compression spring, the end part of the supporting tube is fixedly connected on a supporting disk, a rope shaft is connected between coaxial supporting disks through a bearing, a steel wire rope passes through the rope shaft, adjusting rods are arranged at the top ends of the back positions of the supporting frame and the chair body in a penetrating way through the bearings, the outer side of the part of the adjusting rod, which is positioned at the inner side of the frame groove, is in key connection with the convex part of the supporting disk, which is positioned at two sides of the adjusting rod, is in contact connection with the convex part of the supporting disk, the outer side of the adjusting rod is in key connection with a third transmission gear, the third transmission gear is arranged at the position of the notch, the notch, and the transmission gear is meshed with the third transmission gear

Preferably, scales are marked at the position of the chair body on the upper surface of the displacement through groove, and the unit of the scales is N.

Preferably, the upper end of the control member is spherical, the lower end of the control member is a rod-shaped structure, and the axis of the rod-shaped structure passes through the spherical center of the sphere.

Preferably, the structural shape of support frame is the cross, and the support frame is provided with 2.

Preferably, the lower surface of the shoulder supporting block is arc-shaped, and the lower surface of the shoulder supporting block is provided with an arc-shaped rubber pad.

Preferably, pull and prop a mechanism and include threaded rod, thread bush, prop the apical axis and prop the apical axis, and on the both ends bearing joint support frame of threaded rod to the both ends of threaded rod and support frame welded fastening respectively in the both ends of first torsional spring, thread bush bearing connection is on the threaded rod, and props the apical axis and all have the setting in the both sides of thread bush, the both ends of propping the apical axis all are provided with and prop the apical axis, and prop the apical axis that props of apical axis one end and connect on the thread bush, the apical axis that props that the apical axis other end is propped to the thread bush both sides is connected respectively on the shoulder supporting shoe and traction belt supporting shoe.

Preferably, the rope winding disc is connected to the middle of the threaded rod in a key mode, and the thread directions of the 2 thread sleeves on the threaded rod are opposite.

Preferably, the supporting cross bars are arranged in parallel, and a through hole for the supporting cross bars to retract into is reserved on the movable rod.

Preferably, the reinforcing rods and the connecting pipes are arranged in parallel and are respectively provided with 2 coaxial reinforcing rods and connecting pipes which are movably nested.

Preferably, the sliding structure is composed of a sliding block and a sliding groove, and the sliding block and the sliding groove are respectively arranged on the inner sides of the connecting pipe and the movable rod.

Compared with the prior art, the invention has the beneficial effects that: this chair is pull in medical treatment of two-way traction can provide two-way traction force to can be convenient for pull patient's vertebra, and can be convenient for be applicable to the patient of different heights and use, and drive electric drive through manual drive, the reduction fault rate that can be very big, thereby can ensure patient's safety, and reduced the limitation of its use:

1. the movement of the steel wire rope drives the threaded rod connected with the rope winding disc to rotate, and further the traction belt supporting block and the shoulder supporting block can be far away from each other through the mutual approach between the thread sleeves, so that the shoulder and the head have the tendency of moving in opposite directions, the effect of bidirectionally drawing the spine is achieved, and the height of the traction chair is reduced;

2. the positions of the adjusting frame, the top ends of the support frame and the backrest part of the chair body can be changed by rotating the adjusting rod, so that the transverse and longitudinal positions of the shoulder supporting block and the traction belt supporting block can be changed, the traction chair can be suitable for patients with different heights to use by changing the positions of the shoulder supporting block and the traction belt supporting block, and the steel wire rope is synchronously released or tightened when the positions of the shoulder supporting block and the traction belt supporting block are adjusted, so that the distance between the shoulder supporting block and the traction belt supporting block can be prevented from changing when the positions of the shoulder supporting block and the traction belt supporting block are changed;

3. through manual pulling the movable rod, can drive the drive strip and remove, and then drive the self-resetting of key connection with first drive gear and wind the rope shaft and rotate, so that wire rope is by the rolling, thereby it has the threaded rod rotation of winding the rope dish to drive the key-type connection, in order to reach the purpose of pulling patient vertebra, it has been avoided pulling the chair in the past and has used electric drive and receive the limitation of power position, and avoided electric drive in the past and the trouble that brings, help reducing the patient and use this risk of pulling the chair.

Drawings

FIG. 1 is a schematic side view of the present invention;

FIG. 2 is a schematic side view of the connection structure of the shoulder support block and the tow support block according to the present invention;

FIG. 3 is a schematic view of the connection structure of the shoulder support block and the tow support block according to the present invention;

FIG. 4 is a schematic cross-sectional view of the connecting structure of the support frame and the stop lever according to the present invention;

FIG. 5 is a schematic cross-sectional view of the connecting structure of the chair body and the movable bar according to the present invention;

FIG. 6 is a schematic top view of a chair body according to the present invention;

FIG. 7 is an enlarged view of point A of FIG. 6 according to the present invention;

FIG. 8 is a schematic view of the connection structure of the control member and the movable bar in a cross-sectional view;

FIG. 9 is a schematic view of the connecting structure of the adjusting bracket and the supporting bracket of the present invention;

FIG. 10 is a schematic view of the connection structure of the support tube and the support rod according to the present invention;

FIG. 11 is a schematic view of the connection structure of the support disc and the steel cable in a top view according to the present invention;

FIG. 12 is a schematic view of the connection structure of the positioning female tooth and the supporting horizontal bar according to the present invention.

In the figure: 1. a chair body; 2. a fixed shaft; 3. a movable rod; 4. a control member; 5. a connecting shaft; 6. a drive bar; 7. back cushion; 8. an adjusting bracket; 9. a support frame; 10. adjusting a rod; 11. a shoulder support block; 12. a traction belt supporting block; 13. a traction supporting mechanism; 1301. a threaded rod; 1302. a threaded sleeve; 1303. supporting a top shaft; 1304. supporting a top rod; 14. a rope winding disc; 15. a wire rope; 16. a first torsion spring; 17. a traction belt; 18. a limiting rod; 19. a rope running groove; 20. a displacement through groove; 21. a first drive gear; 22. self-resetting rope winding shafts; 23. a steering shaft; 24. a second torsion spring; 25. positioning the female teeth; 26. positioning the sub-teeth; 27. supporting the horizontal bar; 28. a reinforcing rod; 29. a connecting pipe; 30. a second transmission gear; 31. a sliding structure; 32. a notch; 33. a support disc; 34. supporting a tube; 35. a support bar; 36. a bidirectional cam structure; 37. a third transmission gear; 38. a transmission gear; 39. a frame groove; 40. a compression spring; 41. a rope passing shaft; 42. in that respect A groove; 43. a spring plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-12, the present invention provides a technical solution: a medical traction chair with bidirectional traction comprises a chair body 1, a fixed shaft 2, a movable rod 3, a control piece 4, a connecting shaft 5, a driving strip 6, a back cushion 7, an adjusting frame 8, a supporting frame 9, an adjusting rod 10, a shoulder supporting block 11, a traction belt supporting block 12, a traction supporting mechanism 13, a threaded rod 1301, a threaded sleeve 1302, a supporting shaft 1303, a supporting rod 1304, a rope winding disc 14, a steel wire rope 15, a first torsion spring 16, a traction belt 17, a limiting rod 18, a rope running groove 19, a displacement through groove 20, a first transmission gear 21, a self-resetting rope winding shaft 22, a steering shaft 23, a second torsion spring 24, a positioning female tooth 25, a positioning sub-tooth 26, a supporting cross bar 27, a reinforcing rod 28, a connecting pipe 29, a second transmission gear 30, a sliding structure 31, a notch 32, a supporting plate 33, a supporting pipe 34, a supporting rod 35, a bidirectional cam structure 36, a third transmission gear 37, a transmission tooth 38, a frame groove 39, the edge of the hip supporting part of the chair body 1 is connected with the movable rod 3 through the fixed shaft 2, the upper end of the movable rod 3 penetrates through the displacement through groove 20, the displacement through groove 20 is reserved on the elbow supporting part of the chair body 1, the inner side of the displacement through groove 20 is provided with a positioning female tooth 25, the positioning female tooth 25 is meshed with the positioning male tooth 26, the positioning male tooth 26 is installed in the groove 42, the two ends of the spring sheet 43 are fixedly connected in the groove 42, the middle part of the spring sheet 43 is fixedly connected with the end part of the positioning male tooth 26 extending into the groove 42, the groove 42 is arranged on the supporting transverse strip 27, the two ends of the supporting transverse strip 27 are respectively and fixedly connected to the reinforcing rod 28 and the connecting pipe 29, the outer side of the connecting pipe 29 is provided with the transmission tooth 38, the transmission tooth 38 is meshed and connected to the outer side of the second transmission gear 30, the outer side of the connecting pipe 29 is connected with the inner side, the reinforcing rod 28 and the connecting pipe 29 at the same side are nested and connected, the second transmission gear 30 is connected with the outer side of the lower end of the control part 4, the lower end of the control part 4 is connected with the inner part of the movable rod 3 through a bearing, the upper end of the control part 4 extends out of the top end of the movable rod 3, the middle part of the control part 4 is connected with the movable rod 3 through the second torsion spring 24, the inner side of the movable rod 3 is connected with the driving strip 6 through the connecting shaft 5, the driving strip 6 extends into the inner cavity of the chair body 1, the part of the driving strip 6 extending into the inner cavity of the chair body 1 is also provided with a transmission gear 38, the transmission gear 38 is meshed and connected with the first transmission gear 21, the first transmission gear 21 is connected with the outer side of the end part of the self-resetting winding rope shaft 22 through a bearing, the self-resetting winding rope shaft 22 is connected with the inner cavity of the chair body 1, one, the top end of the backrest part of the chair body 1 is connected with one end of a support frame 9 through an adjusting frame 8, rope running grooves 19 are respectively arranged on the chair body 1, the adjusting frame 8 and the support frame 9, the upper end and the lower end of the support frame 9 are respectively connected with a limiting rod 18 in a nesting and movable manner, the limiting rods 18 at the upper end and the lower end of the support frame 9 are respectively fixedly connected with a traction belt support block 12 and a shoulder support block 11, a traction belt 17 is connected between the traction belt support blocks 12, the other end of a steel wire rope 15 passes through a steering shaft 23, the steering shaft 23 is arranged in an inner cavity of the chair body 1, the other end of the steel wire rope 15 sequentially passes through the rope running grooves 19 on the chair body 1, the adjusting frame 8 and the support frame 9, the other end of the steel wire rope 15 penetrates through the support frame 9 and is wound on a rope winding disc 14, the rope winding disc 14 is arranged on, the traction supporting mechanism 13 is arranged on the supporting frame 9, the top ends of the supporting frame 9 and the backrest part of the chair body 1 are both provided with a frame groove 39, two sides in the frame groove 39 are both fixedly connected with supporting rods 35, the outer side of the supporting rod 35 is movably nested with a supporting tube 34, the inner side of the supporting tube 34 and the outer side of the supporting rod 35 are respectively and fixedly connected with two ends of a compression spring 40, the end part of the supporting tube 34 is fixedly connected with a supporting plate 33, a rope passing shaft 41 is connected between the coaxial supporting plates 33 through a bearing, the rope passing shaft 41 passes through a steel wire rope 15, the top ends of the supporting frame 9 and the backrest part of the chair body 1 are both provided with an adjusting rod 10 in a penetrating way, the outer side of the part of the adjusting rod 10, which is positioned at the inner side of the frame groove 39, is in a key connection with a bidirectional cam structure 36, the, the third transmission gear 37 is disposed at the position of the notch 32, the notch 32 is reserved at a position where the adjusting bracket 8 is connected with the supporting frame 9 and the top end of the backrest portion of the chair body 1, a transmission gear 38 is disposed at one side of the adjusting bracket 8 inside the notch 32, and the transmission gear 38 is meshed with the third transmission gear 37 and connected with the third transmission gear 37

Scales are engraved at the position, on the upper surface of the displacement through groove 20, of the chair body 1, the unit of the scales is N, so that the scales at the position, on the upper surface of the displacement through groove 20, of the chair body 1 can be conveniently used for visually seeing the pulling force applied to the spine of a patient, the spine of the patient is prevented from being damaged due to too large force, and the spine is prevented from being too small to be ineffective in traction.

The upper end of the control part 4 is spherical, the lower end of the control part 4 is of a rod-shaped structure, and the axis of the rod-shaped structure passes through the spherical center of sphere, so that the control part 4 is attractive, and the control part 4 can be rotated conveniently.

The structural shape of support frame 9 is the cross, and support frame 9 is provided with 2, and cross support frame 9 can be nested with gag lever post 18 activity.

The lower surface of shoulder supporting shoe 11 is the arc, and the lower surface of shoulder supporting shoe 11 is provided with curved rubber pad, can be convenient for block at patient's shoulder, and can improve this when pulling the chair and using, the comfort level of patient's shoulder.

The traction supporting mechanism 13 comprises a threaded rod 1301, a threaded sleeve 1302, a supporting shaft 1303 and a supporting rod 1304, bearings at two ends of the threaded rod 1301 are connected to the supporting frame 9, two ends of the threaded rod 1301 and the supporting frame 9 are respectively welded and fixed at two ends of the first torsion spring 16, the threaded sleeve 1302 is connected to the threaded rod 1301 in a bearing mode, the supporting rod 1304 is arranged on two sides of the threaded sleeve 1302, supporting shafts 1303 are arranged at two ends of the supporting rod 1304, the supporting shaft 1303 at one end of the supporting rod 1304 is connected to the threaded sleeve 1302, the supporting shafts 1303 at the other end of the supporting rod 1304 on two sides of the threaded sleeve 1302 are respectively connected to the shoulder supporting block 11 and the traction belt supporting block 12, the winding rope disc 14 is in key connection with the middle of the threaded rod 1301, the thread turning directions of 2 threaded sleeves 1302 on the threaded rod 1301 are opposite, the traction supporting mechanism 13 can be convenient, so that when the steel wire rope 15 is easily pulled, the threaded, and the 2 thread sleeves 1302 with opposite thread directions on the threaded rod 1301 are close to each other, so that the shoulder supporting block 11 and the traction belt supporting block 12 are far away from each other, thereby achieving the purpose of traction on the spine.

The supporting crossbars 27 are arranged in parallel, and a through hole for the supporting crossbars 27 to retract into is reserved on the movable rod 3, so that the supporting crossbars 27 can extend out of the movable rod 3 through the through hole or retract into the movable rod 3.

The reinforcing rods 28 and the connecting pipes 29 are arranged in parallel, and 2 reinforcing

rods

28 and 2 connecting pipes 29 are movably nested, so that the coaxial reinforcing rods 28 and the coaxial connecting pipes 29 can be conveniently movably nested and connected, the supporting cross bars 27 can stably translate, and the use stability of the medical traction chair for bidirectional traction is improved.

The sliding structure 31 is composed of a sliding block and a sliding groove, and the sliding block and the sliding groove are respectively arranged on the inner sides of the connecting pipe 29 and the movable rod 3, so that the connecting pipe 29 can be stably moved through the sliding structure 31 composed of the sliding block and the sliding groove.

The working principle is as follows: the medical traction chair with the bidirectional traction function is firstly put in a proper position and used through the following operation modes:

according to the figures 1-12, the patient to be pulled sits on the chair body 1 and leans against the back cushion 7, so that 2 shoulder supporting blocks 11 are respectively lapped on the shoulders of the patient, and then the pulling belt 17 is sleeved at the chin of the patient;

then the movable rod 3 is held and pulled, so that the movable rod 3 moves in the displacement through groove 20;

when the movable rod 3 moves, the movable rod can rotate under the action of the fixed shaft 2;

when the movable rod 3 rotates, the driving bar 6 can be gradually inserted into the chair body 1 through the connecting shaft 5;

when the driving strip 6 moves, the first transmission gear 21 can be driven to rotate by the transmission gear 38 on the driving strip;

by the rotation of the first transmission gear 21, the self-resetting rope winding shaft 22 is wound on the steel wire rope 15;

because the steel wire rope 15 sequentially passes through the steering shaft 23, the rope running grooves 19 on the chair body 1, the adjusting frame 8 and the supporting frame 9 and is wound on the rope winding disc 14, the threaded rod 1301 which is connected with the rope winding disc 14 in a key mode can be driven to rotate (when the steel wire rope 15 passes through the rope running grooves 19, the steel wire rope 15 passes through the rope passing shafts 41, the steel wire rope passes through the upper surfaces of the 2 rope passing shafts 41 in the same group, and then returns from the lower surfaces of the rope passing shafts 41, and then passes through the upper surfaces of the 2 rope passing shafts 41 again);

when the threaded rod 1301 rotates (the first torsion spring 16 on the threaded rod 1301 gradually stores kinetic energy), the thread sleeves 1302 with the opposite thread turning directions on the threaded rod 1301 approach each other, and then the angle of the corner points between the shoulder supporting block 11 and the traction belt supporting block 12 between the supporting rods 1304 is gradually reduced through the supporting shafts 1303, so that the distance between the shoulder supporting block 11 and the traction belt supporting block 12 is gradually increased;

the distance between the shoulder supporting block 11 and the traction belt supporting block 12 is gradually increased, so that the shoulder and the chin can be respectively pressed, and the spine of the patient can be bidirectionally dragged;

in the moving process of the movable rod 3, the positioning secondary tooth 26 moves on the positioning female tooth 25, and in the moving process of the positioning secondary tooth 26, the positioning secondary tooth 25 is extruded into the retraction groove 42 by the positioning female tooth 25 and then rebounded by the spring leaf 43 to reset, when the movable rod 3 moves to a certain position, the position of the movable rod 3 can be conveniently fixed through the meshing of the positioning secondary tooth 26 and the positioning female tooth 25, so that the movable rod is prevented from moving reversely under the resetting action of the first torsion spring 16 on the self-resetting rope winding shaft 22;

when the traction of the spine of the patient is finished, the upper end of the control part 4 is rotated, and the control part 4 drives the second transmission gear 30 to rotate, so that the connecting pipe 29 moves under the action of the transmission teeth 38 distributed on the outer side of the connecting pipe;

the connecting tubes 29 are moved close to each other, so that the connecting tubes 27 are driven to gradually retract into the inner parts of the movable rods 3 (the reinforcing rods 28 gradually extend into the connecting tubes 29, and the connecting tubes 29 can be stably moved through the sliding structures 31) until the positioning sub-teeth 26 on the outer sides of the supporting cross-bars 27 are disengaged from the positioning female teeth 25;

at this time, under the reset action of the first torsion spring 16 on the self-reset rope winding shaft 22 and the threaded rod 1301, the movable rod 3 moves reversely, so that the threaded rod 1301 moves reversely, and the shoulder supporting block 11 and the traction belt supporting block 12 are close to each other through the reverse movement of the threaded rod 1301, so that the extrusion on the shoulder and the chin of the patient is released;

in the process of using the medical traction chair with bidirectional traction, if the positions of the shoulder supporting block 11 and the traction belt supporting block 12 are not satisfied for the patient to use (influenced by the height of the patient), the adjustment is carried out by the following modes:

the knob on the outer side of the adjusting rod 10 is twisted to enable the adjusting rod 10 to rotate, when the adjusting rod 10 rotates, the bidirectional cam structure 36 is driven to rotate, further the distance between the supporting plates 33 is changed under the action of the supporting tube 34, the supporting rod 35 and the compression spring 40, the steel wire rope 15 with a certain length can be released by changing the distance between the supporting plates 33, meanwhile, the rotation of the adjusting rod 10 can drive the third transmission gear 37 to rotate, and further the transmission gear 38 on the adjusting frame 8 drives the adjusting frame 8 to displace relative to the supporting frame 9 or the top end of the backrest of the chair body 1 (the length of the released steel wire rope 15 is equal to the moving distance of the adjusting frame 8 by setting);

the positions of the shoulder supporting blocks 11 and the traction belt supporting blocks 12 can be changed by the displacement of the adjusting frame 8 relative to the supporting frame 9 or the top end of the backrest of the chair body 1, so that the medical traction chair with bidirectional traction can be suitable for patients with different heights, and the content which is not described in detail in the specification belongs to the prior art which is well known by a person skilled in the art.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a medical traction chair of two-way traction, includes chair body (1), its characterized in that: the edge of the hip supporting part of the chair body (1) is connected with a movable rod (3) through a fixed shaft (2), the upper end of the movable rod (3) penetrates through a displacement through groove (20) to be arranged, the displacement through groove (20) is reserved on the elbow supporting part of the chair body (1), the inner side of the displacement through groove (20) is provided with a positioning female tooth (25), the positioning female tooth (25) is meshed with a positioning sub tooth (26) to be connected, the positioning sub tooth (26) is installed in a groove (42), two ends of a spring leaf (43) are fixedly connected in the groove (42), the middle of the spring leaf (43) is fixedly connected to the end part of the positioning sub tooth (26) extending into the groove (42), the groove (42) is arranged on a supporting transverse bar (27), the two ends of the supporting transverse bar (27) are respectively fixedly connected to a reinforcing rod (28) and a connecting pipe (29), and transmission teeth (38) are arranged on the outer side of the connecting pipe (29), and the meshing of driving teeth (38) is connected in the outside of second drive gear (30), the outside of connecting pipe (29) is connected with the inboard of movable rod (3) through sliding structure (31), and reinforced bar (28) and connecting pipe (29) nested connection of homonymy, second drive gear (30) key-type is connected in the outside of control (4) lower extreme, and the lower extreme bearing of control (4) connects in the inside of movable rod (3), the top of movable rod (3) is stretched out to the upper end of control (4), and the middle part of control (4) is connected with movable rod (3) through second torsional spring (24), the inboard of movable rod (3) is connected with driving strip (6) through connecting axle (5), and driving strip (6) stretch into the inner chamber of chair body (1), the part that driving strip (6) stretches into the inner chamber of chair body (1) also is provided with driving teeth (38), and the transmission gear (38) is meshed with the first transmission gear (21), the first transmission gear (21) is connected with the outer side of the end part of the self-resetting rope winding shaft (22) in a key mode, the self-resetting rope winding shaft (22) is connected in the inner cavity of the chair body (1) in a bearing mode, one end of a steel wire rope (15) is wound on the self-resetting rope winding shaft (22), a back cushion (7) is arranged at the back position of the chair body (1), the top end of the back position of the chair body (1) is connected to one end of the supporting frame (9) through the adjusting frame (8), rope running grooves (19) are formed in the chair body (1), the adjusting frame (8) and the supporting frame (9), limiting rods (18) are movably connected to the upper end and the lower end of the supporting frame (9) in a nesting mode, the limiting rods (18) at the upper end and the lower end of the supporting frame (9) are fixedly connected to the traction belt supporting block (12, and a traction belt (17) is connected between the traction belt supporting blocks (12), the other end of the steel wire rope (15) passes through a steering shaft (23), the steering shaft (23) is installed in an inner cavity of the chair body (1), the other end of the steel wire rope (15) sequentially passes through the chair body (1), an adjusting frame (8) and a rope running groove (19) on the supporting frame (9), the other end of the steel wire rope (15) penetrates through the supporting frame (9) to be wound on a rope winding disc (14), the rope winding disc (14) is installed on a traction supporting mechanism (13), two ends of the traction supporting mechanism (13) are respectively connected to the shoulder supporting block (11) and the traction belt supporting block (12), the traction supporting mechanism (13) is installed on the supporting frame (9), frame grooves (39) are formed in the top ends of the supporting frame (9) and the chair body (1) at the back position, supporting rods (35) are fixedly connected to two sides in the frame grooves (39), the outer side of the supporting rod (35) is movably nested with a supporting tube (34), the inner side of the supporting tube (34) and the outer side of the supporting rod (35) are respectively and fixedly connected to two ends of a compression spring (40), the end part of the supporting tube (34) is fixedly connected to a supporting plate (33), a rope passing shaft (41) is connected between the coaxial supporting plates (33) in a bearing mode, a steel wire rope (15) passes through the rope passing shaft (41), the supporting frame (9) and the top end of the backrest part of the chair body (1) are provided with an adjusting rod (10) in a penetrating mode through bearings, the outer side of the part, located on the inner side of a frame groove (39), of the adjusting rod (10) is in key connection with a bidirectional cam structure (36), the bidirectional cam structure (36) is respectively in contact connection with the protruding parts of the supporting plates (33) on two sides of the adjusting rod (, and the third transmission gear (37) is arranged at the position of the notch (32), the notch (32) is reserved at the position where the adjusting frame (8) is connected with the top ends of the supporting frame (9) and the backrest part of the chair body (1), and one side of the adjusting frame (8) in the notch (32) is also provided with a transmission gear (38), and the transmission gear (38) is meshed with the third transmission gear (37).

2. The medical traction chair for bidirectional traction according to claim 1, wherein: scales are marked at the position, on the upper surface of the displacement through groove (20), of the chair body (1), and the unit of the scales is N.

3. The medical traction chair for bidirectional traction according to claim 1, wherein: the upper end of the control piece (4) is spherical, the lower end of the control piece (4) is of a rod-shaped structure, and the axis of the rod-shaped structure passes through the spherical center of the sphere.

4. The medical traction chair for bidirectional traction according to claim 1, wherein: the structural shape of support frame (9) is the cross, and support frame (9) are provided with 2.

5. The medical traction chair for bidirectional traction according to claim 1, wherein: the lower surface of the shoulder supporting block (11) is arc-shaped, and an arc-shaped rubber pad is arranged on the lower surface of the shoulder supporting block (11).

6. The medical traction chair for bidirectional traction according to claim 1, wherein: the traction supporting mechanism (13) comprises a threaded rod (1301), a threaded sleeve (1302), a supporting shaft (1303) and a supporting rod (1304), bearings at two ends of the threaded rod (1301) are connected to a supporting frame (9), two ends of the threaded rod (1301) and two ends of the supporting frame (9) are respectively welded and fixed to two ends of a first torsion spring (16), the threaded sleeve (1302) is connected to the threaded rod (1301) through bearings, the supporting rod (1304) is arranged on two sides of the threaded sleeve (1302), the supporting shaft (1303) is arranged at two ends of the supporting rod (1304), the supporting shaft (1303) at one end of the supporting rod (1304) is connected to the threaded sleeve (1302), and the supporting shafts (1303) at the other ends of the supporting rods (1304) on two sides of the threaded sleeve (1302) are respectively connected to a shoulder supporting block (11) and a traction belt supporting block (12).

7. The medical traction chair for bidirectional traction according to claim 6, wherein: the rope winding disc (14) is connected to the middle of the threaded rod (1301) in a key mode, and the thread directions of 2 thread sleeves (1302) on the threaded rod (1301) are opposite.

8. The medical traction chair for bidirectional traction according to claim 1, wherein: the supporting transverse strips (27) are arranged in parallel, and through holes for the supporting transverse strips (27) to retract into are reserved on the movable rods (3).

9. The medical traction chair for bidirectional traction according to claim 1, wherein: the reinforcing rods (28) and the connecting pipes (29) are arranged in parallel and are respectively 2, and the coaxial reinforcing rods (28) and the coaxial connecting pipes (29) are movably nested.

10. The medical traction chair for bidirectional traction according to claim 1, wherein: the sliding structure (31) is composed of a sliding block and a sliding groove, and the sliding block and the sliding groove are respectively arranged on the inner sides of the connecting pipe (29) and the movable rod (3).