CN213373482U

CN213373482U - Examination chair for department of ophthalmology and otorhinolaryngology

Info

Publication number: CN213373482U
Application number: CN202021852741.XU
Authority: CN
Inventors: 温桂霞; 郭敏; 黎东眉; 李倩思; 李昌华
Original assignee: Wuzhou Red Cross Hospital
Current assignee: Wuzhou Red Cross Hospital
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2021-06-08
Anticipated expiration: 2030-08-31

Abstract

The utility model relates to the technical field of medical appliances, in particular to an examination chair for ENT department, which comprises a seat surface, chair legs and a backrest plate, wherein the seat surface comprises a fixed plate and a seat plate, the fixed plate is provided with a placing groove in a penetrating way, one side of the fixed plate is provided with an opening communicated with the placing groove, and a supporting block is fixedly arranged on the inner wall of one end of the placing groove, which faces the opening; the bedplate passes through slide bearing with spout sliding connection, the bedplate both ends all be equipped with supporting shoe joint complex draw-in groove, through sliding the bedplate, so that the draw-in groove leaves the supporting shoe or cover is established on the supporting shoe, works as the draw-in groove leaves when the supporting shoe, through rotating the bedplate, it is right to change the seat of bedplate. The chair legs and the backrest plate are respectively arranged on the upper surface and the lower surface of the fixed plate. The utility model discloses an examination chair for ENT department can reduce the uncomfortable sense that hot seat caused to the patient through overturning the bedplate.

Description

Examination chair for department of ophthalmology and otorhinolaryngology

Technical Field

The utility model belongs to the technical field of medical appliances technique and specifically relates to an examination chair for ENT department.

Background

An "otorhinolaryngological" family is a surgical family that diagnoses and treats the ear, nose, pharynx, larynx, and their associated head and neck regions. The patient receives the doctor's inspection through sitting in the chair, because the number of the inspection is more, the chair generally needs to use in succession, and one person gets up, needs to sit another person. However, when a person sits for a long time, the seat plate on the chair or the stool generates heat, and the person can sit down after the seat plate dissipates heat, otherwise the person sits on the hot stool, so that the person is very uncomfortable and unhealthy. Especially in hot summer, the heat on the seat plate is dissipated for a long time, and if the patient does not sit down, the examination effect of the doctor is influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides an examination chair for ENT department can reduce the uncomfortable sense that hot sitting face caused to the patient through overturning the bedplate.

In order to realize the purpose, the utility model discloses a technical scheme be:

a diagnosis chair for the department of ophthalmology and otorhinolaryngology comprises a seat surface, chair legs and a backrest plate, wherein the seat surface comprises a fixed plate and a seat plate, the fixed plate is provided with a placing groove in a penetrating manner, one side of the fixed plate is provided with an opening communicated with the placing groove, the inside of the fixed plate is of a hollow structure, the inner walls of the placing groove adjacent to the two sides of the opening are provided with sliding grooves communicated with the inside of the fixed plate, the sliding grooves are located at one end, close to the opening, of the fixed plate, and a supporting block is fixedly arranged on the inner wall of one end, facing the opening, of the placing;

sliding bearings are fixedly arranged in the middle parts of two sides of the seat board, the seat board is arranged in the placing groove, two sides of the seat board are connected with the sliding groove in a sliding mode through the sliding bearings, clamping grooves matched with the supporting blocks in a clamping mode are formed in two ends of the seat board, the seat board slides to enable the clamping grooves to be separated from the supporting blocks or to be sleeved on the supporting blocks, and when the clamping grooves are separated from the supporting blocks, the seat board is rotated to replace the seat surface of the seat board;

the number of the chair legs is four, the four chair legs are uniformly distributed on the periphery of the bottom surface of the fixing plate, and one end of each chair leg is fixedly connected with the fixing plate;

the backrest plate is positioned on one surface of the fixed plate, which faces back to the chair legs, and one end of the backrest plate is connected with one end of the fixed plate.

Furthermore, locking grooves are respectively arranged at two ends of the seat board along one side of the seat board in the sliding direction, the fixing board is provided with a locking mechanism, the locking mechanism comprises a locking piece and a connecting rod, the locking piece is clamped and matched with the locking grooves, the locking piece is slidably arranged in the fixing board in a penetrating manner, one end of the locking piece faces the placing groove, the other end of the locking piece is positioned in the fixing board and fixedly connected with the connecting rod, and one end, far away from the locking piece, of the connecting rod is slidably arranged outside the fixing board in a penetrating manner; the connecting rod cover is equipped with locking spring, locking spring is located in the fixed plate, just locking spring one end with locking piece butt, the other end with the fixed plate butt under locking spring's elastic force effect, work as the draw-in groove cover is established when on the supporting shoe, the locking piece embedding corresponds locking inslot.

Furthermore, the locking mechanism further comprises a pull ring, and the pull ring is fixedly connected with one end, far away from the locking piece, of the connecting rod.

Furthermore, one end of the backrest plate is rotatably connected with the fixed plate, the other end of the backrest plate is provided with a supporting mechanism, the backrest plate is provided with an adjusting mechanism, the adjusting mechanism is used for adjusting the angle between the backrest plate and the fixed plate, the adjusting mechanism comprises a fixed rod, a fixed shell and a threaded rod, a cavity is formed in the fixed rod, one end of the fixed rod is rotatably connected with the chair leg through a support frame, the other end of the fixed rod is fixedly connected with the outer wall of the fixed shell, one end of the threaded rod is slidably arranged on the fixed rod through the fixed shell, and the other end of the threaded rod is rotatably connected with one surface of the backrest plate, which is opposite to the;

be equipped with worm wheel and worm in the set casing, the worm wheel thread bush is established on the threaded rod and with the set casing rotates to be connected, the worm with the set casing rotate to be connected and with the worm wheel meshing is through rotating the worm, so that the worm wheel drives the threaded rod is in slide in the dead lever.

Furthermore, one end of the worm penetrates out of the fixed shell and is provided with a rotating handle, and the rotating handle is fixedly connected with the worm.

Further, the both ends of worm wheel are equipped with protruding bearing respectively, the inner wall of protruding bearing with the tip fixed connection of worm wheel, the outer wall of protruding bearing with set casing fixed connection.

Furthermore, the support mechanism comprises a support plate, two support rods and two adjusting rods, wherein one end of each support rod is embedded into the backrest plate and is in sliding connection with the backrest plate, the other end of each support rod is fixedly connected with the support plate, the adjusting rods are positioned between the two support rods, one end of each adjusting rod is embedded into the backrest plate and is in sliding connection with the backrest plate, and the other end of each adjusting rod is fixedly connected with the support plate;

the back board is set for and compresses tightly the knob, compress tightly knob one end screw thread and wear to locate in the back board and towards adjust the pole, it is located to compress tightly the knob one end in the back board has set firmly anti-skidding glue, the outer wall of adjusting the pole is equipped with anti-skidding stripe.

Furthermore, a head pad is arranged on one surface, facing the seat surface, of the supporting plate, and a groove body matched with the head of a human body is concavely arranged on the head pad.

The utility model has the advantages that:

1. under the effect of draw-in groove and supporting shoe, can support the bedplate on the fixed plate, because the bedplate both sides are through slide bearing and spout sliding connection for the bedplate can slide and rotate on the fixed plate. When needs overturn the bedplate, through the slip bedplate, leave the supporting shoe at the draw-in groove after, the bedplate can the free rotation, because the supporting shoe symmetry at both ends sets up, behind the upset bedplate, the slip bedplate can make the draw-in groove establish again on the supporting shoe to realized leaving the back at last patient, through overturning the bedplate, reduce the uncomfortable sense that hot sitting face led to the fact the patient.

2. Because the locking groove symmetry at both ends sets up, when the arbitrary one side of bedplate was up, under the elastic force effect of locking spring, when the draw-in groove cover was established on the supporting shoe, the locking piece homoenergetic was inlayed and is corresponded locking inslot for the bedplate can be fixed on the mount, effectively prevents outside the unexpected roll-off fixed plate of bedplate, and leads to unexpected emergence.

3. Because one end of the backrest plate is rotationally connected with the fixed plate, the backrest plate is provided with the adjusting mechanism, and the angle between the backrest plate and the fixed plate can be adjusted through the adjusting mechanism, so that the patient is in a proper lying posture, and the doctor can conveniently check the patient. According to the invention, the worm rotates to drive the worm wheel to rotate, the threaded rod slides in the fixed rod under the driving of the worm wheel, so that the length of the threaded rod extending out of the fixed rod is adjusted, and the angle between the back board and the fixed plate is adjusted through different supporting lengths of the threaded rod.

Drawings

Fig. 1 is a schematic structural view of an examination chair for ophthalmology and otorhinolaryngology according to a preferred embodiment of the present invention.

Fig. 2 is a schematic view of a seat structure of an examination chair for ophthalmology and otorhinolaryngology according to a preferred embodiment of the present invention.

Fig. 3 is a schematic view of a fixing frame of an examination chair for ENT department according to a preferred embodiment of the present invention.

Fig. 4 is a schematic structural view of a supporting mechanism of an examination chair for ENT department according to a preferred embodiment of the present invention.

Fig. 5 is a schematic view of a supporting rod structure of an examination chair for ENT department according to a preferred embodiment of the present invention.

Fig. 6 is a schematic structural view of an adjusting mechanism of an examination chair for ENT department according to a preferred embodiment of the present invention.

In the figure, 1-seat, 11-fixed plate, 111-placing groove, 112-opening, 113-sliding groove, 12-seat plate, 121-sliding bearing, 122-clamping groove, 123-limiting piece, 13-supporting block, 2-chair leg, 3-backrest plate, 4-locking groove, 41-locking piece, 42-connecting rod, 43-locking spring, 44-pull ring, 5-fixed rod, 51-fixed shell, 52-threaded rod, 53-worm wheel, 54-worm, 55-convex bearing, 6-rotating handle, 7-supporting plate, 71-supporting rod, 72-adjusting rod, 721-anti-slip stripe, 73-pressing knob, 731-anti-slip glue, 74-fixed bearing, 8-head pad, 81-groove body, 9-handrail.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 6, a chair for examining the five sense organs according to a preferred embodiment of the present invention includes a seat 1, chair legs 2 and a backrest 3.

As shown in fig. 2 and 3, the sitting surface 1 includes a fixing plate 11 and a seat plate 12, the fixing plate 11 is provided with a placing groove 111 in a penetrating manner, one side of the fixing plate 11 is provided with an opening 112 communicated with the placing groove 111, the fixing plate 11 is internally hollow, the placing groove 111 is provided with a sliding groove 113 communicated with the inside of the fixing plate 11 adjacent to the inner wall of two sides of the opening 112, the sliding groove 113 is located at one end of the fixing plate 11 close to the opening 112, and a supporting block 13 is fixedly arranged on the inner wall of one end of the placing groove 111 facing the opening 112.

The middle part of bedplate 12 both sides all sets firmly slide bearing 121, bedplate 12 is located in standing groove 111, and bedplate 12 both sides pass through slide bearing 121 and 113 sliding connection of spout, bedplate 12 both ends all are equipped with supporting shoe 13 joint complex draw-in groove 122, and the supporting shoe 13 symmetry at both ends sets up, through sliding bedplate 12, so that draw-in groove 122 leaves supporting shoe 13 or the cover is established on supporting shoe 13, when draw-in groove 122 left supporting shoe 13, through rotating bedplate 12, in order to change the seat of bedplate 12.

The supporting block 13 of this embodiment sets up two, and the draw-in groove 122 is equipped with four, and per two draw-in grooves 122 are located the both ends of bedplate 12 respectively to when making any side of bedplate 12 up, draw-in groove 122 homoenergetic overlaps establishes on supporting block 13. One end of the sliding bearing 121 far from the seat plate 12 is fixedly provided with a limiting member 123, the limiting member 123 is located in the fixing plate 11, and the seat plate 12 is prevented from being separated from the fixing plate 11 under the action of the limiting member 123.

Under the action of the locking slot 122 and the supporting block 13, the seat plate 12 can be supported on the fixing plate 11, and the two sides of the seat plate 12 are slidably connected with the sliding slot 113 through the sliding bearing 121, so that the seat plate 12 can slide and rotate on the fixing plate 11.

When needs overturn bedplate 12, through slip bedplate 12, leave behind the supporting shoe 13 at draw-in groove 122, bedplate 12 can the free rotation, because the supporting shoe 13 symmetry at both ends sets up, behind the upset bedplate 12, slip bedplate 12 can make draw-in groove 122 overlap again and establish on supporting shoe 13 to realized that last patient leaves the back, through overturning bedplate 12, reduce the uncomfortable sense that hot seat face 1 led to the fact the patient.

In this embodiment, the two ends of the seat plate 12 along the sliding direction of the seat plate 12 are respectively provided with locking grooves 4, and the locking grooves 4 at the two ends are symmetrically arranged.

The fixed plate 11 is provided with a locking mechanism, the locking mechanism comprises a locking piece 41 and a connecting rod 42, the locking piece 41 is in clamping fit with a locking groove 4, the locking piece 41 is arranged on the fixed plate 11 in a sliding mode, one end of the locking piece 41 faces the placing groove 111, the other end of the locking piece is positioned inside the fixed plate 11 and is fixedly connected with the connecting rod 42, and one end, far away from the locking piece 41, of the connecting rod 42 is arranged outside the fixed plate 11 in; connecting rod 42 cover is equipped with locking spring 43, and locking spring 43 is located fixed plate 11, and locking spring 43 one end and locking piece 41 butt, and the other end and fixed plate 11 butt, under locking spring 43's elastic force effect, when draw-in groove 122 cover was established on supporting shoe 13, locking piece 41 imbeds corresponding locking groove 4 in.

Because the locking groove 4 symmetry at both ends sets up, when the arbitrary one side of bedplate 12 was up, under locking spring 43's elasticity effect, when draw-in groove 122 cover was established on supporting shoe 13, locking piece 41 homoenergetic was embedded into the locking inslot that corresponds for bedplate 12 can be fixed on fixed plate 11, outside effectively preventing the unexpected roll-off fixed plate 11 of bedplate 12, and lead to unexpected emergence.

Preferably, the locking mechanism further comprises a pull ring 44, the pull ring 44 being fixedly connected to an end of the connecting rod 42 remote from the locking member 41. Under the effect of pull ring 44, be convenient for pull connecting rod 42, make things convenient for patient or medical personnel to carry out upset regulation to bedplate 12.

The number of the chair legs 2 is four, the four chair legs 2 are uniformly distributed on the periphery of the bottom surface of the fixing plate 11, and one end of each chair leg 2 is fixedly connected with the fixing plate 11.

The backrest plate 3 is positioned on one side of the fixed plate 11, which faces away from the chair legs 2, and one end of the backrest plate 3 is connected with one end of the fixed plate 11.

In this embodiment, one end of the backrest plate 3 is rotatably connected to the fixed plate 11, the other end is provided with a support mechanism, and the backrest plate 3 is provided with an adjusting mechanism.

As shown in fig. 6, the adjusting mechanism is used for adjusting the angle between the backrest plate 3 and the fixing plate 11, and the adjusting mechanism includes a fixing rod 5, a fixing shell 51 and a threaded rod 52, a cavity is formed inside the fixing rod 5, one end of the fixing rod 5 is rotatably connected with the chair leg 2 through a support frame 501, the other end of the fixing rod is fixedly connected with the outer wall of the fixing shell 51, one end of the threaded rod 52 is slidably inserted into the fixing rod 5 through the fixing shell 51, and the other end of the threaded rod is rotatably connected with the surface of the backrest plate 3 facing away from.

A worm wheel 53 and a worm 54 are arranged in the fixed shell 51, the worm wheel 53 is sleeved on the threaded rod 52 in a threaded manner and is rotatably connected with the fixed shell 51, the worm 54 is rotatably connected with the fixed shell 51 and meshed with the worm wheel 53, and the worm wheel 53 drives the threaded rod 52 to slide in the fixed rod 5 by rotating the worm 54.

The adjusting mechanism of this embodiment can be replaced by an electric telescopic rod.

Because one end of the back board 3 is rotationally connected with the fixed board 11, the angle between the back board 3 and the fixed board 11 can be adjusted through the adjusting mechanism, so that the patient is in a proper lying posture, and the doctor can conveniently check the patient. In this embodiment, the worm 54 rotates the worm wheel 53, and the threaded rod 52 slides in the fixed rod 5 under the driving of the worm wheel 53, so as to adjust the length of the threaded rod 52 extending out of the fixed rod 5, and the angle between the back plate 3 and the fixed plate 11 is adjusted by the different supporting lengths of the threaded rod 52.

Preferably, one end of the worm 54 penetrates out of the fixed shell 51 and is provided with a rotating handle 6, and the rotating handle 6 is fixedly connected with the worm 54. Under the action of the rotating handle 6, the force for driving the worm 54 to rotate can be reduced, and the difficulty in adjusting the back board 3 is reduced.

Two ends of the worm wheel 53 are respectively provided with a convex bearing 55, the inner wall of the convex bearing 55 is fixedly connected with the end part of the worm wheel 53, and the outer wall of the convex bearing 55 is fixedly connected with the fixed shell 51. Under the action of the convex bearing 55, the friction force between the worm wheel 53 and the fixed shell 51 can be reduced, and the force required for adjusting the back board 3 can be reduced.

As shown in fig. 4 and 5, the holding mechanism includes a holding plate 7, a support rod 71, and an adjustment lever 72. Two support rods 71 are provided, one end of each of the two support rods 71 is embedded in the backboard 3 and is connected with the backboard 3 in a sliding manner, the other end of each of the two support rods 71 is fixedly connected with the supporting plate 7, the adjusting rod 72 is positioned between the two support rods 71, one end of the adjusting rod 72 is embedded in the backboard 3 and is connected with the backboard 3 in a sliding manner, and the other end of the adjusting rod 72 is fixedly connected with the supporting plate 7. The outer wall of the adjusting rod 72 of the present embodiment is slidably sleeved with a fixed bearing 74, and the outer wall of the fixed bearing 74 is fixedly connected with the inner wall of the back board 3, so that the adjusting rod 72 can be slidably connected with the back board 3.

The back board 3 is provided with a pressing knob 73, one end of the pressing knob 73 is threaded through the back board 3 and faces the adjusting rod 72, one end of the pressing knob 73 located in the back board 3 is fixedly provided with an anti-skid glue 731, and the outer wall of the adjusting rod 72 is provided with an anti-skid stripe 721.

Different patients have different heights, and the heads of the patients with different heights can be supported on the supporting plate 7 by adjusting the distance between the supporting plate 7 and the backrest plate 3, so that the patients are ensured to be in the lying postures suitable for examination. After the position of the rest plate 7 is adjusted, the anti-slip glue 731 can be pressed against the anti-slip stripes 721 of the adjustment rod 72 by tightening the pressing knob 73, so that the adjustment rod 72 and the backboard 3 are relatively fixed, and the rest plate 7 is maintained at a proper position.

Preferably, a head pad 8 is disposed on a surface of the supporting plate 7 facing the sitting surface 1, and a groove 81 adapted to the head of the human body is concavely disposed on the head pad 8. Under the action of the head cushion 8, the comfort of the patient can be improved.

The fixed plate 11 of this embodiment is fixedly provided with armrests 9 adjacent to both sides of the backboard 3, respectively.

Examining patient at the examination chair that is used for ENT department who uses this embodiment, when needs overturn the bedplate, earlier through pulling up pull ring 6, after locking piece 41 leaves locking groove 4, slip bedplate 12 leaves behind supporting shoe 13 at draw-in groove 122, under the seat upset orientation chair with hot seat through upset bedplate 12, then slip bedplate 12 can make draw-in groove 122 overlap again and establish on supporting shoe 13, and release pull ring 6, under the spring action of locking spring 43, locking piece 41 imbeds corresponding locking groove 4 in, make bedplate 12 after the upset fix on fixed plate 11.

According to the height of the patient, the position of the supporting plate 7 is adjusted after the pressing knob 73 is loosened so that the head of the patient can lean against the head cushion 8, after the position of the supporting plate 7 is adjusted, the pressing knob 73 is tightened so that the anti-skid glue 731 presses against the anti-skid strips 721 of the adjusting rod 72, and the adjusting rod 72 and the backboard 3 are relatively fixed.

According to the items to be checked, the rotating handle 6 is rotated, the worm 54 drives the worm wheel 53 to rotate, the threaded rod 52 slides in the fixed rod 5 under the driving of the worm wheel 53, and the angle between the back board 3 and the fixed board 11 is adjusted through different supporting lengths of the threaded rod 52.

Claims

1. The examination chair for the ENT department is characterized by comprising a seat surface (1), chair legs (2) and a backrest plate (3), wherein the seat surface (1) comprises a fixing plate (11) and a seat plate (12), the fixing plate (11) is provided with a placing groove (111) in a penetrating mode, an opening (112) communicated with the placing groove (111) is formed in one side of the fixing plate (11), the fixing plate (11) is of a hollow structure, sliding grooves (113) communicated with the fixing plate (11) are formed in the inner walls, adjacent to the opening (112), of the placing groove (111) on the two sides, the sliding grooves (113) are located at one end, close to the opening (112), of the fixing plate (11), and a supporting block (13) is fixedly arranged on the inner wall, facing to the opening (112), of the placing groove (111);

sliding bearings (121) are fixedly arranged in the middle of two sides of the seat plate (12), the seat plate (12) is arranged in the placing groove (111), two sides of the seat plate (12) are in sliding connection with the sliding groove (113) through the sliding bearings (121), clamping grooves (122) in clamping fit with the supporting blocks (13) are formed in two ends of the seat plate (12), the supporting blocks (13) at the two ends are symmetrically arranged, the clamping grooves (122) are separated from the supporting blocks (13) or sleeved on the supporting blocks (13) through sliding the seat plate (12), and when the clamping grooves (122) are separated from the supporting blocks (13), the seat surface of the seat plate (12) is replaced through rotating the seat plate (12);

the number of the chair legs (2) is four, the four chair legs (2) are uniformly distributed on the periphery of the bottom surface of the fixing plate (11), and one end of each chair leg (2) is fixedly connected with the fixing plate (11);

the backrest plate (3) is located on one surface, back to the chair legs (2), of the fixed plate (11), and one end of the backrest plate (3) is connected with one end of the fixed plate (11).

2. The examination chair for the department of ophthalmology and otorhinolaryngology of claim 1, wherein: the two ends of the seat board (12) along one side of the sliding direction of the seat board (12) are respectively provided with a locking groove (4), and the locking grooves (4) at the two ends are symmetrically arranged; the fixing plate (11) is provided with a locking mechanism, the locking mechanism comprises a locking piece (41) and a connecting rod (42), the locking piece (41) is in clamping fit with the locking groove (4), the locking piece (41) penetrates through the fixing plate (11) in a sliding mode, one end of the locking piece (41) faces the placing groove (111), the other end of the locking piece is located inside the fixing plate (11) and fixedly connected with the connecting rod (42), and one end, far away from the locking piece (41), of the connecting rod (42) penetrates through the fixing plate (11) in a sliding mode; connecting rod (42) cover is equipped with locking spring (43), locking spring (43) are located in fixed plate (11), just locking spring (43) one end with locking piece (41) butt, the other end with fixed plate (11) butt under the elastic force effect of locking spring (43), work as draw-in groove (122) cover is established when on supporting shoe (13), locking piece (41) embedding corresponds in locking groove (4).

3. The examination chair for the department of ophthalmology and otorhinolaryngology of claim 2, wherein: the locking mechanism further comprises a pull ring (44), and the pull ring (44) is fixedly connected with one end, away from the locking piece (41), of the connecting rod (42).

4. The examination chair for the department of ophthalmology and otorhinolaryngology of claim 1, wherein: one end of the backrest plate (3) is rotatably connected with the fixed plate (11), the other end of the backrest plate is provided with a supporting mechanism, the backrest plate (3) is provided with an adjusting mechanism, the adjusting mechanism is used for adjusting the angle between the backrest plate (3) and the fixed plate (11), the adjusting mechanism comprises a fixed rod (5), a fixed shell (51) and a threaded rod (52), a cavity is formed in the fixed rod (5), one end of the fixed rod (5) is rotatably connected with the chair leg (2) through a supporting frame (501), the other end of the fixed rod is fixedly connected with the outer wall of the fixed shell (51), one end of the threaded rod (52) penetrates through the fixed rod (5) through the fixed shell (51) in a sliding mode, and the other end of the threaded rod is rotatably connected with the surface, back to the seat surface (1), of the backrest plate (3;

be equipped with worm wheel (53) and worm (54) in set casing (51), worm wheel (53) thread bush is established threaded rod (52) go up and with set casing (51) rotate and are connected, worm (54) with set casing (51) rotate and be connected and with worm wheel (53) meshing, through rotating worm (54), so that worm wheel (53) drive threaded rod (52) are in slide in dead lever (5).

5. The examination chair for the department of ophthalmology and otorhinolaryngology of claim 4, wherein: one end of the worm (54) penetrates out of the fixed shell (51) and is provided with a rotating handle (6), and the rotating handle (6) is fixedly connected with the worm (54).

6. The examination chair for the department of ophthalmology and otorhinolaryngology of claim 4, wherein: the both ends of worm wheel (53) are equipped with protruding bearing (55) respectively, the inner wall of protruding bearing (55) with the tip fixed connection of worm wheel (53), the outer wall of protruding bearing (55) with set casing (51) fixed connection.

7. The examination chair for the department of ophthalmology and otorhinolaryngology of claim 4, wherein: the support mechanism comprises a support plate (7), two support rods (71) and two adjusting rods (72), one ends of the two support rods (71) are embedded into the backrest plate (3) and are in sliding connection with the backrest plate (3), the other ends of the two support rods (71) are fixedly connected with the support plate (7), the adjusting rods (72) are located between the two support rods (71), one ends of the adjusting rods (72) are embedded into the backrest plate (3) and are in sliding connection with the backrest plate (3), and the other ends of the adjusting rods (72) are fixedly connected with the support plate (7);

the back board (3) is set for and is compressed tightly knob (73), compress tightly knob (73) one end screw thread and wear to locate in back board (3) and towards adjust pole (72), it is located to compress tightly knob (73) one end in back board (3) has set firmly anti-skidding glue (731), the outer wall of adjusting pole (72) is equipped with anti-skidding stripe (721).

8. The examination chair for the department of ophthalmology and otorhinolaryngology of claim 7, wherein: the side, facing the sitting surface (1), of the supporting plate (7) is provided with a head pad (8), and a groove body (81) matched with the head of a human body is concavely arranged on the head pad (8).