CN111658413B

CN111658413B - Special chair convenient for doctor seeing and used for department of pediatrics

Info

Publication number: CN111658413B
Application number: CN202010636913.8A
Authority: CN
Inventors: 王从丽
Original assignee: Pizhou Jingpeng Venture Capital Co Ltd
Current assignee: Pizhou Jingpeng Venture Capital Co Ltd
Priority date: 2020-07-04
Filing date: 2020-07-04
Publication date: 2022-11-22
Anticipated expiration: 2040-07-04
Also published as: CN111658413A; CN115281994A

Abstract

The invention relates to the field of medical supplies, and discloses a special chair for pediatrics, which is convenient for seeing a doctor.A fixed shaft is fixed on a chair body, a shaft sleeve is sleeved on the fixed shaft, a sleeve is fixed on the shaft sleeve, a mandrel is limited in the sleeve, and the mandrel extends to the outside of the sleeve and is fixedly connected with a strip plate-shaped supporting plate; when the supporting plate is positioned at the hand-held station, the supporting plate is positioned at one side above the seat plate and is used as a handrail; when the supporting plate is positioned at the supporting station, the supporting plate is positioned above the seat plate and can be adjusted around the mandrel, and the supporting plate can be used for a child patient to sit on; when the pallet is located at the footrest station, the pallet is located below the front side of the seat plate and can be used as a pedal. This paediatrics special chair simple structure, it is ingenious reasonable, the layer board has multiple station, can switch over the different stations of layer board through simple and convenient operation to satisfy different clinical actual need, especially can reduce the parent's of child patient burden, can be full of heart with the doctor carry out the state of an illness and communicate, improved diagnostic efficiency and effect.

Description

Special chair convenient for doctor seeing and used for department of pediatrics

Technical Field

The invention relates to the technical field of medical facilities, in particular to a chair used in a pediatric consulting room.

Background

The chair for patients is usually placed in the consulting room of the hospital, so that the patients can sit on the chair in the process of consulting, the patients can communicate with doctors easily and comfortably, and some simpler routine examinations can be completed in a sitting posture. Generally speaking, most of departments have chairs for patients, and thus, when the pediatric patients are younger, the pediatric patients cannot sit stably alone, parents need to sit on the chairs all the way to hold the children and communicate with doctors in the process of treatment, and the pediatric patients are correspondingly checked by matching with the doctors, which is a practical situation that the parents of the pediatric patients cannot communicate with the doctors all the way due to discomfort, on one hand, the parents of the pediatric patients have heavy burden and are prone to fatigue in the process of treatment, and even have upper limb pain due to long diagnosis time, so that the diagnosis efficiency is affected.

In addition, older pediatric patients can sit stably by themselves, but most of the chairs placed in the pediatric consulting room are adult chairs, and the pediatric patients are very uncomfortable because of no proper pedal positions when sitting on the chairs, for example, the legs hang for too long time and the legs and feet are numb because the lower sides of the thighs are pressed.

Disclosure of Invention

The technical purpose of the invention is to provide a special chair for pediatrics, which has reasonable structural design and convenient and quick use, can effectively improve the comfort of a pediatric patient and parents thereof in the treatment process so as to improve the disease communication efficiency and facilitate the examination operation, thereby bringing convenience for the pediatric patient to see a doctor.

In order to achieve the technical purpose, the invention adopts the following technical scheme:

the utility model provides a make things convenient for special chair of paediatrics of seeing a doctor, its includes a chair body, the chair body include the seat, for a plurality of chair legs that the seat provided the support and be fixed in the back board of seat rear end, its characterized in that: a fixed shaft extending along the left-right direction is arranged on one side of the front end of the chair body, a locking hole is formed in the upper side of the fixed shaft, a sleeve capable of only rotating around the fixed shaft is sleeved on the fixed shaft, a sleeve extending outwards along the radial direction of the sleeve is fixed on the sleeve, and the sleeve is communicated with the inner cavities of the sleeve and the shaft; a pin seat is arranged on one side of the sleeve, the pin seat is communicated with the inner cavities of the sleeve and the sleeve, a positioning pin and a thrust spring for driving the positioning pin to move towards the direction of the sleeve are limited in the pin seat, and a pull handle for manually drawing the positioning pin to enable the positioning pin to be far away from the sleeve is arranged outside the pin seat; a mandrel is limited in the sleeve, a limiting mechanism for preventing the sleeve and the mandrel from being separated is arranged between the sleeve and the mandrel, a positioning hole and a positioning groove are formed in the side wall of the mandrel, and the mandrel extends to the outside of the sleeve and is fixedly connected with a strip-shaped plate-shaped supporting plate; when the mandrel is positioned right above the locking hole, the mandrel moves downwards to be inserted into the locking hole, and then the mandrel moves upwards to be removed from the locking hole; after the mandrel is inserted into the locking hole, the supporting plate is positioned above the seat plate and is horizontal, the mandrel is rotated and adjusted to enable the positioning pin to be inserted into the positioning hole, the supporting plate is positioned on one side above the seat plate and is positioned at a hand-held station, the supporting plate is used as an armrest, when the positioning pin is not inserted into the positioning hole, the supporting plate can be adjusted in position around the mandrel, and the supporting plate is positioned at a bearing station for a child patient to sit on; the chair body is provided with a lower limiting part, the sleeve pipe is downwards rotated by the front side of the fixing shaft and can be matched with the lower limiting part, so that the sleeve pipe cannot continuously rotate according to the original direction, the core shaft is rotatably adjusted at the moment, the positioning pin can be inserted into the positioning groove, the supporting plate is positioned below the front side of the seat plate and is positioned at a pedal station, and the supporting plate extends along the left and right directions and can be used as a pedal.

The working principle and the clinical use method of the chair special for pediatrics comprise the following steps:

when a child patient to be diagnosed is small in age and cannot sit stably on the seat board independently, the sleeve can be rotated until the mandrel is positioned right above the locking hole, the lower end of the mandrel is inserted into the locking hole, the supporting board is adjusted to the supporting station, parents can sit on the seat board in the process of diagnosis, the child patient can sit on the supporting board in a horizontal state, parents only need to hold the child patient by hands or embrace without bearing the weight of the child patient in the process of examination, the mandrel and the sleeve can rotate relatively in the state, and the parents can adjust the position of the supporting board in the process of diagnosis in a rotating mode, so that the body position and the position of the child patient can be adjusted, the comfort of the child patient and the parents of the child patient can be improved, and a doctor can more conveniently and quickly perform necessary physical examination on the child patient according to clinical needs;

when a child patient who is in a doctor can sit stably on the seat board independently, the sleeve can be rotated downwards from the front side of the fixed shaft to be matched with the lower limiting part, the core shaft is rotated to enable the positioning pin to be inserted into the positioning groove, the supporting plate is adjusted to the pedal station, the supporting plate is located below the front side of the seat board and extends in the left-right direction, and the supporting plate can be used as a pedal for the child patient to step on, so that the child patient can sit on the seat board more comfortably;

when need not above-mentioned function, rotatable sleeve pipe to dabber are located directly over the locking hole and insert the locking hole with the dabber lower extreme, rotatory dabber makes the locating pin insert in the locating hole afterwards, adjust the layer board to hand station from this, this department's special chair can regard as ordinary chair to use afterwards, the layer board is located the top one side of seat, can not occupy extra space, and can prevent that child patient from following seat one side landing, simultaneously because the unable shift position of layer board, can act as the handrail and use, further improvement user's comfort level.

Further, the fixed shaft is supported by a seat plate or chair legs.

Furthermore, the locking hole is in a blind hole shape.

Furthermore, the central axes of the inner cavities of the positioning pin and the sleeve are perpendicular and intersected.

Furthermore, cushions are arranged on the backrest plate and the seat plate.

Furthermore, the shaft sleeve and the sleeve are of an integral structure and are made of the same metal material.

Furthermore, one side of the supporting plate is provided with an elastic pad, and when the supporting plate is positioned at the hand-holding station and the bearing station, the elastic pad is just positioned at the upper side of the supporting plate.

Furthermore, the supporting plate is made of a low-density composite material, and the main body of the supporting plate is of a hollow structure.

Furthermore, the seat plate and the backrest plate are of an integrated structure.

Furthermore, the mandrel is provided with a suspension arm at one end far away from the sleeve, the suspension arm and the mandrel are of an integrated structure, the suspension arm is fixedly connected with the supporting plate, and the suspension arm and the mandrel are formed by bending a metal piece.

This special chair of child compares prior art, and it has following technological effect:

the chair special for pediatrics is simple in structure, ingenious and reasonable, the supporting plate is provided with various stations, different stations of the supporting plate can be switched through simple and convenient operation, and different clinical actual requirements can be met; when the supporting plate is positioned at the bearing station, the supporting plate can provide stable support for the child patient, the burden of parents of the child patient is greatly reduced in the treatment process, the parents and the child patient can keep a comfortable state in the treatment process, particularly, the parents of the child patient can be in full-care communication with a doctor, the diagnosis efficiency and effect are improved, meanwhile, the position of the supporting plate can be adjusted in a rotating way, namely, the position of the child patient is adjusted, the comfort requirement difference of different users can be met, and the doctor can more conveniently and quickly check the specific part of the body of the child patient; when the supporting plate is positioned at the pedal station, the supporting plate is used for the pediatric patient to pedal, so that the pediatric patient can sit on the seat plate more comfortably; when the supporting plate is positioned at a hand-held station, the supporting plate does not occupy extra space, and can prevent a child patient from sliding off one side of the seat plate.

Drawings

Fig. 1 is one of the structural schematic diagrams of the special chair for pediatrics when the support plate is at a hand-held work station.

Fig. 2 is a second schematic structural view of the chair for pediatric use with the support plate in the handheld work station.

Fig. 3 is a schematic structural view of the chair special for department of pediatrics when the supporting plate is at the pedal station.

Figure 4 is one of the schematic structural views of the chair for pediatric use with the tray in the support station.

Figure 5 is a second schematic structural view of the chair for pediatric use with the tray in the support station.

Fig. 6 is a schematic structural view of the sleeve, the sleeve and the pin boss.

Fig. 7 is a partially exploded schematic view of a pediatric special chair.

Fig. 8 is a schematic structural view of a pallet and a mandrel.

FIG. 9 is a schematic diagram showing the cooperation of the components of the pallet when the pallet is in a hand-held position.

Figure 10 is a schematic view of the components engaged with the pallet at the holding station.

FIG. 11 is a schematic view of the cooperation of the components of the pallet in the step station.

Fig. 12 is a schematic diagram of the engagement between the positioning pin and the guiding groove when the shaft moves toward the fixed shaft.

Fig. 13 is a schematic structural view of the spindle with a thrust bearing installed thereon.

In the figure, 1, chair legs, 2, a seat plate, 3, a shaft sleeve, 4, a sleeve, 5, a pin seat, 6, a mandrel, 7, a supporting plate, 8, a pull handle, 9, an elastic cushion, 10, a backrest plate, 11, a soft cushion, 12, a lower limiting part, 13, an upper limiting part, 14, a fixed shaft, 15, a suspension arm, 16, a pull rod, 17, a thrust spring, 18, a positioning pin, 19, a sealing cover, 20, a positioning groove, 21, a positioning hole, 22, a thin shaft part, 23, a guide groove, 24, a locking hole, 25 and a thrust bearing.

Detailed Description

Referring to fig. 1-11, the chair for pediatrics convenient for visiting a doctor disclosed in the present invention comprises a chair body, wherein the chair body comprises a seat plate 2, a plurality of chair legs 1 for supporting the seat plate 2, and a backrest plate 10 fixed to the rear end of the seat plate 2, and the chair body can be specifically implemented with reference to the related structure of the prior art, and is characterized in that: a fixed shaft 14 extending along the left-right direction is arranged on one side of the front end of the chair body, the fixed shaft 14 can be supported by the seat plate 2 or the chair legs 1, a locking hole 24 extending downwards is formed in the upper side of the fixed shaft 14, the locking hole 24 is in a blind hole shape, a sleeve 3 only rotating around the fixed shaft 14 is sleeved on the fixed shaft 14, a sleeve 4 extending outwards along the radial direction of the sleeve 3 is fixed on the sleeve 3, and the sleeve 4 is communicated with the inner cavities of the sleeve 3; a pin seat 5 is arranged on one side of the sleeve 4, the pin seat 5 is communicated with the inner cavities of the sleeve 4, the preferred position relation between the positioning pin 18 and the sleeve 4 is that the central axes of the inner cavities of the two are vertical and intersected, a positioning pin 18 and a thrust spring 17 are limited in the pin seat 5, the thrust spring 17 is used for driving the positioning pin 18 to move towards the direction of the sleeve 4, a pull handle 8 is arranged outside the pin seat 5, and the positioning pin 18 can be pulled to be far away from the sleeve 4 manually by means of the pull handle 8; a mandrel 6 is limited in the sleeve 4, the mandrel 6 and the sleeve 4 can move axially relative to each other, a limiting mechanism for preventing the mandrel 6 and the sleeve 4 from being separated from each other is arranged between the mandrel 6 and the sleeve 4, a positioning hole 21 and a positioning groove 20 are formed in the side wall of the mandrel 6, and the mandrel 6 extends to the outside of the sleeve 4 and is fixedly connected with a strip-shaped plate 7; the sleeve 4 is enabled to rotate around the fixed shaft 14, when the mandrel 6 is located right above the locking hole 24, the mandrel 6 is in the vertical direction, the mandrel 6 moves downwards to be capable of being inserted into the locking hole 24, the sleeve 4 is in the locking state and cannot rotate at the moment, and then the mandrel 6 is driven to move upwards to be moved out of the locking hole 24, namely the sleeve 4 is unlocked; as shown in fig. 1, 2 and 9, after the mandrel 6 is inserted into the locking hole 24, the supporting plate 7 is located above the seat plate 2 and is horizontal, the mandrel 6 is rotated and adjusted to enable the positioning pin 18 to be inserted into the positioning hole 21, at this time, the supporting plate 7 is located on one side above the seat plate 2 and is located at a handheld station, and the supporting plate 7 can be used as an armrest, as shown in fig. 4, 5 and 10, when the positioning pin 18 is not inserted into the positioning hole 21, the mandrel 6 and the sleeve 4 can be rotated relatively to enable the supporting plate 7 to be adjusted in position around the mandrel 6, at this time, the supporting plate 7 is located at a supporting station, on which a child patient can sit; referring to fig. 3 and 11, a lower limit part 12 is provided on the chair body, the sleeve 4 is rotated downward from the front side of the fixing shaft 14 and can be matched with the lower limit part 12, so that the sleeve 4 cannot rotate continuously in the original direction, the spindle 6 is rotated and adjusted to insert the positioning pin 18 into the positioning slot 20, the support plate 7 is located below the front side of the seat plate 2 and is located at a pedal station, and the support plate 7 extends in the left-right direction and can be used as a pedal for a child sitting on the seat plate 2 to step on; the use of the pull handle 8 to drive the locating pin 18 away from the sleeve 4 allows the locating pin 18 to be manually disengaged from the locating holes 21 and locating slots 20.

Referring to fig. 1-5, the chair special for children department has simple structure, is ingenious and reasonable, the supporting plate 7 has a plurality of stations, different stations of the supporting plate 7 can be switched by simple and convenient operation to meet different clinical practical requirements, and in clinical application, the working principle and the using method of the chair special for children department are as follows:

A. as shown in fig. 4, 5 and 10, when the pediatric patient is younger and cannot sit on the sitting plate 2 alone, the sleeve 4 can be rotated to enable the mandrel 6 to be positioned right above the locking hole 24, and then the lower end of the mandrel 6 is inserted into the locking hole 24, so that the supporting plate 7 is adjusted to a supporting station, parents can sit on the sitting plate 2 during the treatment process to enable the pediatric patient to sit on the supporting plate 7 in a horizontal state, parents only need to hold or embrace the pediatric patient with hands during the examination process without bearing the weight of the pediatric patient, the burden of parents of the pediatric patient during the treatment process is greatly reduced, the parents and the pediatric patient can keep a comfortable state during the treatment process, especially parents of the pediatric patient can communicate with doctors with the disease in a whole heart, the diagnosis efficiency and effect are improved, and at the same time, the parents can adjust the position of the supporting plate 7 in a rotating manner during the treatment process, so as to adjust the position and position of the pediatric patient, thereby improving the comfort of the pediatric patient and satisfying the different requirements of the parents and enabling the doctors to conveniently and quickly examine the specific body parts of the patients; when layer board 7 is in the bearing station, sleeve pipe 4 can't rotate around fixed axle 14, and the atress of dabber 6 leads to dabber 6 can not carry out axial displacement, makes dabber 6 can keep vertical state from this to guarantee that layer board 7 maintains at the bearing station and provide stable bearing effect for child patient.

B. As shown in fig. 3 and 11, when the infant patient can sit on the seat 2 alone, the sleeve 4 can be rotated downward from the front side of the fixed shaft 14 to be matched with the lower positioning portion 12, and the core shaft 6 is rotated to insert the positioning pin 18 into the positioning slot 20, so that the support plate 7 is adjusted to the pedal station, and at this time, the support plate 7 is located below the front side of the seat 2 and extends in the left-right direction, and can be used as a pedal for the infant patient to step on, so that the infant patient can sit on the seat 2 more comfortably, and the occurrence of limb numbness and other situations can be avoided; when the support plate 7 is located at the pedaling station, the sleeve 4 is limited by the lower limiting part 12 and cannot rotate in the back-down direction, the sleeve 4 cannot rotate in the front-up direction due to stress, that is, the position of the sleeve 4 is constant, meanwhile, the mandrel 6 cannot rotate relative to the sleeve 4 due to the matching of the positioning pin 18 and the positioning groove 20, and the mandrel 6 cannot move axially due to stress, that is, the relative position of the mandrel 6 and the sleeve 4 is constant, so that the support plate 7 can be maintained at the pedaling station and can provide a stable support effect for the lower limbs of the pediatric patient.

C. Referring to fig. 1, 2 and 9, when the functions corresponding to the two stations are not needed, the sleeve 4 can be rotated to the position above the mandrel 6 and just above the locking hole 24, the lower end of the mandrel 6 is inserted into the locking hole 24, then the mandrel 6 is rotated to enable the positioning pin 18 to be inserted into the positioning hole 21, so that the supporting plate 7 is adjusted to the hand-holding station, and then the chair special for the department can be used as a common chair, the supporting plate 7 is positioned on one side above the seat plate 2, no extra space is occupied, the child patient can be prevented from sliding off from one side of the seat plate 2, and the supporting plate 7 can be used as an armrest because the position can not be moved, so that the chair has better comfort compared with the existing common chair; when the supporting plate 7 is positioned at a hand-held station, the sleeve 4 cannot rotate around the fixed shaft 14, the mandrel 6 cannot move axially due to the stress of the mandrel 6, and the positioning pin 18 is matched with the positioning hole 21 to prevent the mandrel 6 from rotating, namely, the position of the mandrel 6 is constant and inconvenient, so that the supporting plate 7 is positioned at one side above the seat plate 2 and cannot move, and the expected effect can be finally exerted.

Referring to fig. 1 and 2, in the chair for pediatric use, the backrest plate 10 and the seat plate 2 are provided with cushions 11, thereby further improving the comfort of the user during the treatment.

Referring to fig. 6 and 7, in the chair for pediatric use, the sleeve 3 and the sleeve 4 are integrally formed and made of the same metal material, so as to ensure that the two components have sufficient strength to provide a supporting function for other components.

Referring to fig. 2, 3 and 4, in the chair for pediatrics mentioned above, when the supporting plate 7 is in the pedal position, one side faces upward for stepping, and when the supporting plate 7 is in the walking position and the supporting position, the other side faces upward for sitting or supporting, thereby ensuring the sanitation of the supporting plate 7 during working in the walking position and the supporting position; meanwhile, based on the characteristics, one side of the supporting plate 7 is provided with the elastic pad 9, when the supporting plate 7 is positioned at the hand-held station and the bearing station, the elastic pad 9 is just positioned at the upper side of the supporting plate 7, so that the use comfort of the supporting plate 7 in the hand-held station and the bearing station is improved, and when the supporting plate 7 is positioned at the pedal station, the elastic pad 9 is positioned at the lower side of the supporting plate 7, so that the supporting plate is not trampled to be dirty.

Referring to fig. 3 and 8, in the chair for pediatric department, the supporting plate 7 is made of a low-density composite material, and the main body of the chair is of a hollow structure, so as to reduce the self-weight of the chair to reduce the load on other components such as the core shaft 6 and the sleeve 4, while ensuring that the chair has enough strength to support the pediatric patient; meanwhile, the support plate 7 adopts a hollow structure, so that the support plate has a good anti-skidding effect when working at a pedal station.

Referring to fig. 1 and 2, in the chair for pediatric use, the seat plate 2 and the backrest plate 10 are integrated into a single structure.

Referring to fig. 13, in the special chair for pediatrics as described above, the spindle 6 is provided with a thrust bearing 25, when the support plate 7 is located at the supporting station and the holding station, the thrust bearing 25 abuts against the upper end of the sleeve 4, and the load of the spindle 6 in the vertical direction is borne by the thrust bearing 25, thereby reducing the resistance of the spindle 6 and the sleeve 4 in relative rotation.

Referring to fig. 3 and 8, in the chair for pediatric department, a suspension arm 15 is disposed at an end of the spindle 6 away from the sleeve 4, the suspension arm 15 and the spindle 6 are integrated, and the suspension arm 15 is fixedly connected with the supporting plate 7, so as to improve the bearing capacity of the supporting plate 7; in practice, the suspension arm 15 and the mandrel 6 may be formed by bending a single metal piece.

Referring to fig. 1 and 4, in the special chair for pediatrics, when the supporting plate 7 is located at the holding station and the supporting station, the pin seat 5 is located right behind the sleeve 4, so that the pin seat 5 is located at a position which does not interfere with the use of the special chair for pediatrics.

Referring to fig. 6, in the special chair for pediatrics as described above, the pin seat 5 is used for placing the positioning pin 18, which has various embodiments according to the prior art, preferably as follows:

the utility model discloses a pull rod 8 fixed connection, including the key seat 5, locating pin 18, pull rod 16, thrust spring 17 cover and locating pin 18, the key seat 5 have one be the cylindricality and with the communicating cavity in sleeve pipe 4 inner chamber, the one end that sleeve pipe 4 was kept away from to key seat 5 is equipped with thread combination's closing cap 19, closing cap 19 center has been seted up the via hole, locating pin 18 be located the cavity and can axial displacement position, the one end that sleeve pipe 4 was kept away from to locating pin 18 is equipped with pull rod 16, pull rod 16 pass behind the via hole at closing cap 19 center with pull rod 8 fixed connection, thrust spring 17 cover put outside pull rod 16, thrust spring 17's both ends support the top with closing cap 19 and locating pin 18 tip respectively.

Referring to fig. 7, 9 and 10, in the chair for pediatrics department mentioned above, the upper limit part 13 is provided on the chair body, the sleeve 4 can rotate upwards from the front side of the fixed shaft 14 to match with the upper limit part 13, and thereafter the sleeve 4 cannot rotate continuously in the original direction, and the spindle 6 is just above the locking hole 24; therefore, the supporting plate 7 can be more conveniently and quickly adjusted to a bearing station and a hand-held station; meanwhile, the rotation of the sleeve 4 is limited in a smaller angle range by the lower limiting part 12 and the upper limiting part 13, so that the supporting plate 7 can be switched between different stations more flexibly and conveniently.

Referring to fig. 7, 9, 10 and 11, in the chair for pediatric use described above, the limiting mechanism is used to prevent the spindle 6 from being disengaged from the sleeve 4, so as to ensure that the tray 7 is supported by the spindle 6 and the sleeve 4 to be able to bear the downward pressure generated by pedaling when the tray 7 is in the pedaling station; in terms of the prior art, the limiting mechanism has various embodiments, and the preferred structure is as follows:

the limiting mechanism is a thin shaft part 22, the thin shaft part 22 is a thin section of the mandrel 6, namely the outer diameter of the thin shaft part 22 is smaller than that of other parts of the mandrel 6, so that one end of the thin shaft part 22 close to the sleeve 4 is provided with a step; the positioning hole 21 and the positioning groove 20 are both arranged on the slender shaft part 22; the positioning pin 18 is matched with the thin shaft part 22, so that the mandrel 6 and the sleeve 4 can move axially relative to each other but cannot be separated; the above-described structure of the stopper mechanism is easy to implement, is low in implementation cost, and can be used for prefabricating the thin shaft portion 22 when the main body of the mandrel 6 is manufactured, without connecting other components.

Referring to fig. 9-12, in the chair for pediatric use as described above, the spindle 6 is provided with a guiding groove 23 communicating with the positioning groove 20, the guiding groove 23 is located at an end of the positioning groove 20 away from the fixed shaft 14, a bottom of the guiding groove 23 is a slope, when the positioning pin 18 is inserted into the positioning groove 20, if the spindle 6 is driven to move in the sleeve 4 towards the fixed shaft 14, the positioning pin 18 will enter the guiding groove 23 and slide out of the guiding groove 23 through the bottom of the guiding groove 23; therefore, when the supporting plate 7 is switched from the pedal station to the bearing station, after the sleeve 4 is rotated to enable the mandrel 6 to be positioned right above the locking hole 24, the mandrel 6 can automatically move downwards by means of gravity to be inserted into the locking hole 24, in the process that the mandrel 6 moves downwards, the positioning pin 18 automatically slides out of the positioning groove 20 through the guide groove 23 without manually holding the pull handle 8 to release the matching of the positioning pin 18 and the positioning groove 20, and then the supporting plate 7 can be switched to the hand station if being rotated; based on the design, when the supporting plate 7 is switched to the bearing station and the hand-held station from the pedal station, the operation is more convenient and faster, and trouble and labor are saved.

Claims

1. The utility model provides a convenient special chair of paediatrics of seeing a doctor, its includes a chair body, the chair body include the seat, for a plurality of chair legs that the seat provided the support and be fixed in the back plate of seat rear end, its characterized in that: a fixed shaft extending along the left-right direction is arranged on one side of the front end of the chair body, a locking hole is formed in the upper side of the fixed shaft, a sleeve capable of only rotating around the fixed shaft is sleeved on the fixed shaft, a sleeve extending outwards along the radial direction of the sleeve is fixed on the sleeve, and the sleeve is communicated with the inner cavities of the sleeve and the shaft; a pin seat is arranged on one side of the sleeve, the pin seat is communicated with the inner cavities of the sleeve and the sleeve, a positioning pin and a thrust spring for driving the positioning pin to move towards the direction of the sleeve are limited in the pin seat, and a pull handle for manually drawing the positioning pin to enable the positioning pin to be far away from the sleeve is arranged outside the pin seat; a mandrel is limited in the sleeve, a limiting mechanism for preventing the sleeve and the mandrel from being separated is arranged between the sleeve and the mandrel, a positioning hole and a positioning groove are formed in the side wall of the mandrel, and the mandrel extends to the outside of the sleeve and is fixedly connected with a strip-shaped plate-shaped supporting plate; when the mandrel is positioned right above the locking hole, the mandrel moves downwards to be inserted into the locking hole, and then the mandrel moves upwards to be removed from the locking hole; after the mandrel is inserted into the locking hole, the supporting plate is positioned above the seat plate and is horizontal, the mandrel is rotated and adjusted to enable the positioning pin to be inserted into the positioning hole, the supporting plate is positioned on one side above the seat plate and is positioned at a hand-held station, the supporting plate is used as an armrest, when the positioning pin is not inserted into the positioning hole, the supporting plate can be adjusted in position around the mandrel, and the supporting plate is positioned at a bearing station for a child patient to sit on; the chair body is provided with a lower limiting part, the sleeve pipe is downwards rotated by the front side of the fixing shaft and can be matched with the lower limiting part, so that the sleeve pipe cannot continuously rotate according to the original direction, the core shaft is rotatably adjusted at the moment, the positioning pin can be inserted into the positioning groove, the supporting plate is positioned below the front side of the seat plate and is positioned at a pedal station, and the supporting plate extends along the left and right directions and can be used as a pedal.

2. The special chair for pediatrics convenient to visit as claimed in claim 1, wherein: the fixed shaft is supported by a seat plate or chair legs.

3. The special chair for pediatrics convenient to visit as claimed in claim 1, wherein: the locking hole is in a blind hole shape.

4. The special chair for pediatrics convenient to visit as claimed in claim 1, wherein: the central axes of the inner cavities of the positioning pin and the sleeve are vertical and intersected.

5. The special chair for pediatrics as claimed in claim 1, wherein: the backrest plate and the seat plate are provided with soft cushions.

6. The special chair for pediatrics convenient to visit as claimed in claim 1, wherein: the shaft sleeve and the sleeve are of an integrated structure and are made of the same metal material.

7. The special chair for pediatrics convenient to visit as claimed in claim 1, wherein: one side of the supporting plate is provided with an elastic pad, and when the supporting plate is positioned at the hand-holding station and the bearing station, the elastic pad is just positioned at the upper side of the supporting plate.

8. The special chair for pediatrics as claimed in claim 1, wherein: the supporting plate is made of a low-density composite material, and the main body of the supporting plate is of a hollow structure.

9. The special chair for pediatrics as claimed in claim 1, wherein: the seat plate and the backrest plate are of an integrated structure.

10. The special chair for pediatrics convenient to visit as claimed in claim 1, wherein: the one end that the sheathed tube was kept away from to the dabber be equipped with a cantilever arm, cantilever arm and dabber structure as an organic whole, cantilever arm and layer board fixed connection, cantilever arm and dabber adopt a metalwork to bend and form.