CN104622614A - Automatic cervical traction chair structure - Google Patents

Abstract

An automatic cervical traction chair structure, comprising a seat seat surface, a seat back connected to the seat seat surface and a seat armrest arranged on the seat back, the back of the seat is fixed by a fixed ring Hydraulic cylinder, the lower end of the hydraulic cylinder is supported by a support pad, the upper end is connected to a hydraulic cylinder piston rod, the upper end of the hydraulic cylinder piston rod is connected to one end of the beam, the other end of the beam is provided with a pressure sensor, and a hanger A helmet-type neck angle controller is connected under the hook; the end of the seat surface far away from the seat back is connected with an outer sleeve through screws, and a lifting rod is set inside the outer sleeve, and a foot pedal is provided at the lower end of the lifting rod; The lower end of the seat back is hinged with a backrest link; the seat seat surface is provided with a bracket connected thereto, and the backrest link is hinged with the bracket through a support link; the bracket is close to the pedal One side of the board is provided with a small pulley and the other side is provided with a large pulley.

Description

Automatic cervical traction chair structure

technical field

The invention relates to the field of cervical traction device design, in particular to an automatic cervical traction chair structure.

Background technique

As one of the main pillars of the human body, the cervical spine is rich in blood vessels and nerve plexuses, which ensure the upload and release of basic life activity information and nutrient delivery. In real life, the incidence of cervical spondylosis is very high, especially the occupational diseases of teachers, computer workers and other people who work at desks for a long time. According to statistics, there are about 50 million to 150 million people suffering from this disease nationwide, and the incidence rate is about 3.8%-17.6%. At present, there are many medical methods for treating cervical spondylosis, which can be roughly divided into surgical therapy and non-surgical therapy. Cervical traction is an important and commonly used effective therapy in non-surgical therapy of cervical spondylosis.

At present, there are many different kinds of cervical traction devices in the society, and the cervical traction chair is one of them. The cervical traction chair can be used for traction by applying external force to the cervical spine, which can dredge the meridians and restore the normal physiological curve of the cervical spine and the mechanical balance of the spine. Cervical spondylosis has the effect of curing the root cause. When using a cervical traction chair for cervical traction therapy, the traction position is a very important parameter. A suitable traction position can make the patient feel comfortable and is conducive to treatment. According to the research results, when performing cervical traction therapy, the best posture of the patient should be a sitting position with the neck forward about 10°-30° from the longitudinal axis of the trunk. In order to make the patient easy to form the best traction position on the cervical traction chair, and the body is well supported, the design of the seat is an essential link.

Contents of the invention

The invention discloses a structure of an automatic cervical traction chair, and completes the design of the automatic cervical traction chair and part of its structure and size in combination with the research results of human body mechanics and the design principle of a rest-type seat, and overcomes that the existing cervical traction chair does not have backrest adjustment The downside of functionality and non-adjustable height.

The technical solution adopted in the present invention: an automatic cervical spine traction chair structure, including a seat seat surface, a seat back connected to the seat seat surface, and a seat armrest arranged on the seat back. A hydraulic cylinder is fixed by a fixed ring. The lower end of the hydraulic cylinder is supported by a support pad, and the upper end is connected to a hydraulic cylinder piston rod. The upper end of the hydraulic cylinder piston rod is connected to one end of the beam, and the other end of the beam is provided with a pressure sensor. , a hook hangs under the pressure sensor, and a helmet-type neck angle controller is connected under the hook; the end of the seat surface away from the seat back is connected to an outer sleeve by screws, and a lifting rod is set inside the outer sleeve, and the lower end of the lifting rod A foot pedal is provided; the lower end of the seat back is hinged to a backrest link; a bracket connected to it is provided below the seat seat surface, and the backrest link is hinged to the bracket through a support link; A small pulley is provided on one side of the support near the pedal, and a large pulley is provided on the other side.

Beneficial effects of the present invention: through the design of the lifting rod, the patient can adjust the height of the seat surface by himself during use; through the design of the backrest connecting rod, the patient can adjust the angle of the backrest according to his own comfort level, which not only greatly improves the It not only improves the patient's comfort when using the automatic cervical traction chair, but also improves the therapeutic effect; there are three convenient buttons on the armrest of the chair, which can cooperate with the control circuit to realize the automatic control of the cervical traction chair.

Description of drawings

Fig. 1 is an overall structural diagram of the present invention;

Fig. 2 is a schematic diagram of the structure of the lifting rod.

Detailed ways

The following are specific embodiments of the present invention, and the present invention will be further described in conjunction with the accompanying drawings.

As shown in Figures 1 and 2, a structure of an automatic cervical spine traction chair includes a seat seat surface 14, a seat back 9 connected to the seat seat surface 14 and a seat armrest 10 arranged on the seat back 9, A hydraulic cylinder 2 is fixed behind the seat back 9 by a fixed ring 3. The lower end of the hydraulic cylinder 2 is supported by a support pad 1, and the upper end is connected to a hydraulic cylinder piston rod 4, and the upper end of the hydraulic cylinder piston rod 4 is connected to There is one end of the beam 5, and the other end of the beam 5 is provided with a pressure sensor 6, a hook 7 is hung below the pressure sensor 6, and a helmet-type neck angle controller 8 is connected under the hook 7; the seat surface 14 is far away from the seat One end of the backrest 9 is connected with an outer sleeve 20 by a screw 15, and a lifting rod 18 is set inside the outer sleeve 20, and the lower end of the lifting rod 18 is provided with a pedal 21; the lower end of the seat back 9 is connected with a backrest connecting rod 25 Hinged; the bottom of the seat surface 14 is provided with a bracket 27 connected thereto, and the backrest link 25 is hinged with the bracket 27 through a support link 26; the side of the bracket 27 near the pedal 21 is provided Little pulley 29 is arranged, and the other side is provided with big pulley 28.

Wherein the lower end of the outer sleeve 20 is provided with a drive gear 23 inside, the axis of the drive gear 23 is provided with a positioning shaft 22, and a positioning hole is opened on the outer wall of the lower end of the outer sleeve 20, and the positioning shaft 22 passes through the positioning hole and drives the driving gear. 23 is fixed in the outer sleeve 20. An inner sleeve 19 is set inside the outer sleeve 20, and the lower end of the inner sleeve 19 is provided with a driven gear 24 meshed with the driving gear 23; Be provided with steel ball 17. An elevating rod 18 is arranged between the outer sleeve 20 and the inner sleeve 19 , and the elevating rod 18 is connected with the seat surface 14 through the spiral groove 16 . Spring is housed in described support link 26; Spring is housed between described seat back 9 and backrest link 25, and one end of spring is arranged on the hinge screw place of seat back 9 and backrest link 25, and the other end Be installed at the hinge screw place of seat back 9 and seat seat surface 14, pin is housed on the spring. The upper and lower ends of the outer sleeve 20 are respectively provided with openings, the end of the backrest link 25 far away from the seat back 9 is inserted into the opening at the upper end of the outer sleeve 20, and the end of the bracket 27 close to the outer sleeve 20 is inserted into the lower end of the outer sleeve 20. inside the opening. The seat armrest 10 is provided with an emergency stop button 11, a stop button 12 and a start button 13, which can cooperate with the control circuit to realize the automatic control of the cervical spine traction chair.

According to the design principles of the seat, the structural dimensions of each part on the seat designed by the present invention are as follows: 1. Seat height: the correct seat height should keep the thighs sitting on it horizontal, the shanks vertical, and both feet flat on the ground. The seat height of the invention design is 450mm; 2, seat width: the size of the seat width must be suitable for tall people, and its corresponding anthropometric value is the hip width, which is the reference value for the hip width of an adult man with a height of 175cm. The seat width is 480mm; 3. Seat depth: the correct seat depth should make the legs of the patient sitting on it be placed horizontally, and the knees should not exceed the front end of the seat to cause pressure fatigue at the bottom of the legs. The seat depth designed by the present invention is 450mm; 4. Seat surface angle: the seat designed by the present invention should lean slightly backwards to help maintain the best relaxed state, and the angle between the seat surface and the horizontal plane is 5°; 5. Seat back height and width: should be Determine according to the actual measured value of the human body, the seat height of the seat back designed by the present invention is 610mm, and the seat back width is 480mm; The stop button is designed to have a length of 440mm, and the armrest is positioned at 220mm above the seat surface; the width of the armrest is 50mm based on the width of the elbow greater than the human body; Plus a solid cushion, the thickness of the cushion is 60mm.

Before starting to use, the patient can step on the foot pedal to make the driving gear 23 rotate, which drives the driven gear 24 to rotate, thereby driving the inner sleeve 19 to rotate, and the rotation of the inner sleeve 19 will make the steel ball on the spiral groove 16 17 rotates and moves, so that the elevating rod 18 is lifted and moved (the inner sleeve 19 rotates counterclockwise, the elevating rod 18 rises, the inner sleeve 19 rotates clockwise, and the elevating rod 18 descends), and the height of the seat is adjusted.

A spring is arranged between the seat back (9) and the backrest link (25), one end of the spring is arranged at the hinge screw of the seat back (9) and the backrest link (25), and the other end is arranged at the seat back ( 9) and the hinge screw of the seat surface (14), the spring is equipped with a pin. When the patient leans on the seat back (9), a thrust will be applied to make the backrest (9) rotate around the horizontal axis of the backrest link (25), that is, between the original relatively vertical position and the leaning back position. between movement. When the patient reaches a more comfortable position, the movement stops, and the spring provides support to maintain balance, and the position is locked by the pin. When the patient leaves, the position is unlocked and the force of the spring returns the backrest (9) to its original position.

During use, the patient sits upright on the seat surface 14 of the automatic cervical spine traction chair, the back is close to the seat back 9, and the head is inserted into the helmet-type angle controller 8 suspended above the patient's head. After adjusting the traction angle, press Press the start button 13, the hydraulic cylinder piston rod 4 rises to pull the cervical spine; when the patient needs to stop the traction, he can press the stop button 12; during use, if the automatic cervical traction chair breaks down, the patient can press the emergency stop button 11 to make The automatic cervical traction chair stops everything.

After use, the backrest link (25) is lifted up, the support link (26) is equipped with a spring, one end of the support link (26) is fixed and hinged on the bracket (27), and the other end will be stretched, Until the seat is converted from a sitting position to a standing position, it is convenient to place when not in use.

Claims (9)

1. an automatic cervical vertebra traction chair structure, comprise seat seat surface (14), the backrest (9) be connected with seat seat surface (14) and the armrest (10) be arranged on backrest (9), a hydraulic cylinder (2) is fixed by clamping rings (3) in described backrest (9) rear, described hydraulic cylinder (2) lower end supports by supporting parallels (1), upper end connects a hydraulic cylinder piston rod (4), the upper end of hydraulic cylinder piston rod (4) is connected with one end of crossbeam (5), the other end of crossbeam (5) is provided with a pressure transducer (6), pressure transducer (6) underhung one suspension hook (7), suspension hook (7) below connects a helmet-type neck angle controller (8), it is characterized in that: seat seat surface (14) is connected with a trocar sheath (20) away from one end of backrest (9) by screw (15), and trocar sheath (20) inner sleeve has an elevating lever (18), and the lower end of elevating lever (18) is provided with pedal (21), lower end and a backrest connecting rod (25) of described backrest (9) are hinged, the below of described seat seat surface (14) is provided with the support (27) be attached thereto, and backrest connecting rod (25) is hinged by a support link (26) and support (27), described support (27) is provided with truckle (29) near the side of pedal (21), and opposite side is provided with large pulley (28).

2. a kind of automatic cervical vertebra traction chair structure according to claim 1, it is characterized in that: the inside, lower end of described trocar sheath (20) is provided with driving gear (23), the axis of driving gear (23) is provided with a locating shaft (22), trocar sheath (20) lower end outside wall has a locating hole, and driving gear (23) is fixed in trocar sheath (20) through locating hole by locating shaft (22).

3. a kind of automatic cervical vertebra traction chair structure according to claim 1, is characterized in that: described trocar sheath (20) inner sleeve has an inner sleeve (19), and inner sleeve (19) lower end is provided with the driven gear (24) be meshed with driving gear (23); The lateral wall of inner sleeve (19) is provided with helicla flute (16), is provided with steel ball (17) in helicla flute (16).

4. according to claim 2 and a kind of automatic cervical vertebra traction chair structure according to claim 3, it is characterized in that: be provided with an elevating lever (18) between described trocar sheath (20) and inner sleeve (19), elevating lever (18) is connected with seat seat surface (14) by helicla flute (16).

5. a kind of automatic cervical vertebra traction chair structure according to claim 1, is characterized in that: described support link (26) is built with spring.

6. a kind of automatic cervical vertebra traction chair structure according to claim 1, it is characterized in that: between described backrest (9) and backrest connecting rod (25), spring is housed, one end of spring is positioned on the HINGE SCREWS place of backrest (9) and backrest connecting rod (25), the other end is positioned on the HINGE SCREWS place of backrest (9) and seat seat surface (14), and spring is equipped with pin.

7. a kind of automatic cervical vertebra traction chair structure according to claim 1, it is characterized in that: described trocar sheath (20) is respectively equipped with perforate in two ends up and down, backrest connecting rod (25) inserts in the perforate of trocar sheath (20) upper end away from one end of backrest (9), and support (27) inserts in the perforate of trocar sheath (20) lower end near one end of trocar sheath (20).

8. a kind of automatic cervical vertebra traction chair structure according to claim 1, is characterized in that: described armrest (10) is provided with scram button (11), stop button (12) and start button (13).

9. a kind of automatic cervical vertebra traction chair structure according to claim 1, it is characterized in that: described seat seat surface (14) is 450mm apart from ground level, sitting wide is 480mm, the dark 450mm of seat, seat seat surface (14) is 5 ° with the angle of horizontal plane, and it is highly the medicated cushion of 60mm that seat seat surface (14) is provided with; Described backrest (9) is highly 610mm, and width is 480mm; Described armrest (10) length is 440mm, and width is 50mm, is highly 220mm apart from seat seat surface (14).