CN111658414B

CN111658414B - Bearing assembly for pediatrics

Info

Publication number: CN111658414B
Application number: CN202010637334.5A
Authority: CN
Inventors: 王从丽
Original assignee: Jiangsu Jusheng Intelligent Transmission Technology Co ltd
Current assignee: Jiangsu Jusheng Intelligent Transmission Technology Co ltd
Priority date: 2020-07-04
Filing date: 2020-07-04
Publication date: 2022-09-13
Anticipated expiration: 2040-07-04
Also published as: CN115300309A; CN111658414A

Abstract

The invention relates to the field of medical supplies, and discloses a bearing component for pediatrics, which comprises a clamping seat combined with a chair, wherein a fixing shaft with a locking hole is fixed on the clamping seat; a shaft sleeve is sleeved on the fixed shaft, a sleeve is fixed on the shaft sleeve, and a positioning pin is limited on one side of the sleeve by a pin seat; a mandrel is limited in the sleeve and provided with a positioning hole and a positioning groove, and the mandrel is connected with a supporting plate; the clamping seat or the fixed shaft is provided with a lower limiting part; this bearing subassembly for paediatrics simple structure, it is ingenious reasonable, the layer board has three kinds of stations and can supply to adjust, when the layer board is located the bearing station, can provide the support for child patient, greatly reduced child patient head's burden when seeing a doctor, head of a family can be wholeheartedly carry out the state of an illness with the doctor and communicate, diagnosis efficiency and effect have been improved, when the layer board is located pedal station, can supply child patient to trample, patient's comfort level has been improved, can act as the handrail when the layer board is located hand station, patient head's comfort level has been improved to a certain extent.

Description

Bearing assembly for pediatrics

Technical Field

The invention relates to the technical field of medical facilities, in particular to a bearing component convenient for a child patient to see a doctor.

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 mode. Generally speaking, most of the chairs used by patients in departments are ordinary chairs, namely chairs composed of a seat plate and chair legs, and the same is true of pediatric consulting rooms, when the child patient is younger, the child patient usually cannot sit stably alone, the parent needs to sit on the chair to hold the child and communicate with the doctor in the whole process of the doctor seeing a doctor, and the patient can be correspondingly examined by matching with a doctor, which has two defects, on one hand, the load of parents of the child is heavier in the process of seeing a doctor, the body is easy to be tired, for example, the upper limb is sore even if the diagnosis time is longer, the discomfort causes that parents of the pediatric patient cannot communicate with doctors with full mind, so that the diagnosis efficiency is influenced, and on the other hand, the pediatric patient usually clings to the parents and keeps a fixed posture in the holding process, so that the body posture of the pediatric patient is difficult to adjust, and the pediatric patient is not favorable for corresponding examination operation of the doctors on the pediatric patient.

In addition, older children can sit stably by themselves, but the chairs placed in the pediatric consulting room are generally adult chairs, and children sit on the chairs without proper pedal positions, so that the children are extremely uncomfortable, for example, the legs hang for too long time, and the legs and the feet are numb due to the fact that the lower sides of the thighs are pressed.

Disclosure of Invention

The technical purpose of the invention is to provide a bearing component for pediatrics, which has reasonable structural design and convenient and quick use, can be used in cooperation with a common chair to 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.

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

a bearing component for pediatrics comprises a clamping seat which can be combined and connected with a chair, wherein a fixed shaft is arranged on the clamping seat, and a locking hole is formed in the side wall of the fixed shaft; the fixed shaft is sleeved with a sleeve which can only rotate around the fixed shaft, a sleeve which extends 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 sleeve; 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; the sleeve is internally limited with a mandrel which can move axially, a limiting mechanism for preventing the sleeve and the mandrel from separating is arranged between the sleeve and the mandrel, the side wall of the mandrel is provided with a positioning hole and a positioning groove, and the mandrel extends to the outside of the sleeve and is fixedly connected with a strip-shaped plate; the clamping seat or the fixed shaft is provided with a lower limiting part; after the clamping seat is combined and connected with the chair;

the fixed shaft is positioned on one side of the front end of the seat plate, extends along the left-right direction and is provided with a locking hole at the upper side of the fixed shaft;

when the sleeve is positioned right above the fixed shaft, the mandrel can be inserted into the locking hole, then the supporting plate is positioned above the seat plate and kept 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 positioned at a hand-holding 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 at the moment, the supporting plate is positioned at a supporting station for a child patient to sit on;

when the sleeve is positioned under the fixed shaft, the sleeve is limited by the lower limiting part and cannot rotate backwards, the mandrel is rotated and adjusted at the moment, the positioning pin can be inserted into the positioning groove, the supporting plate is positioned under the front side of the seat plate and positioned at a pedal station, and the supporting plate extends in the left-right direction and can be used as a pedal.

This paediatrics is fixed in chair in consulting room with bearing subassembly combination when using on, its theory of operation and clinical application method are:

when the child patient who is treated is younger and cannot sit on the seat board alone stably, the sleeve pipe can be rotated to the position right above the fixing shaft, the lower end of the mandrel is inserted into the locking hole, the supporting plate is adjusted to the supporting station, parents can sit on the seat board in the treatment process, the child patient can sit on the supporting plate in a horizontal state, parents only need to hold or embrace the child patient in the detection process without bearing the weight of the child patient, meanwhile, the mandrel and the sleeve pipe can rotate relatively in the state, and the parents can adjust the position of the supporting plate in the treatment process in a rotating mode so as to adjust the body position and the position of the child patient, so that the comfort of the child patient and the parents of the child patient is improved, and a doctor can carry out necessary physical examination on the child patient according to clinical needs more conveniently and quickly;

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 the position under the fixed shaft, the mandrel 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 under 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 tread, so that the child patient can sit on the seat board more comfortably;

when the functions are not needed, the sleeve can be rotated to be right above the fixed shaft, the lower end of the mandrel is inserted into the locking hole, the mandrel is rotated to enable the positioning pin to be inserted into the positioning hole, the supporting plate is adjusted to the hand-held station, the supporting plate is located on one side above the seat plate, extra space cannot be occupied, the position cannot be moved, the supporting plate can serve as a handrail, the comfort level of a user is improved, and meanwhile the supporting plate located on one side can prevent a child patient from sliding down from one side of the seat plate.

Further, in the pediatric supporting assembly, the locking hole may be a blind hole.

Further, in the pediatric supporting assembly, the positioning pin is perpendicular to and intersects with the central axis of the inner cavity of the cannula.

Furthermore, in the bearing assembly for pediatrics, the shaft sleeve and the sleeve are of an integral structure and made of the same metal material.

Further, in the pediatric supporting assembly, the elastic pad is arranged on one surface of the supporting plate, and the elastic pad is just positioned on the upper side of the supporting plate when the supporting plate is positioned at the holding station and the supporting station.

Further, in the pediatric supporting assembly, the supporting plate is made of a low-density composite material, and the main body of the supporting plate is of a hollow structure.

Further, in foretell bearing subassembly for paediatrics, the dabber keep away from the sheathed tube one end and 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.

Further, in the bearing assembly for pediatrics, when the supporting plate is located at the holding station and the bearing station, the pin seat is located right behind the sleeve.

Furthermore, in the bearing assembly for pediatrics, the pin seat is provided with a cylindrical cavity communicated with the inner cavity of the sleeve, one end of the pin seat, far away from the sleeve, is provided with a seal cover combined by threads, a through hole is formed in the center of the seal cover, the positioning pin is positioned in the cavity and can move axially, one end of the positioning pin, far away from the sleeve, is provided with a pull rod, the pull rod penetrates through the through hole in the center of the seal cover and then is fixedly connected with the pull handle, the thrust spring is sleeved outside the pull rod, and two ends of the thrust spring abut against the end portions of the seal cover and the positioning pin respectively.

Further, in the bearing assembly for pediatrics, the clamping seat or the fixed shaft is provided with an upper limiting part for limiting the position of the sleeve; when the sleeve rotates around the fixed shaft from the front side of the fixed shaft to the position right above the fixed shaft, the sleeve is limited by the upper limiting part and cannot rotate backwards.

This bearing subassembly for paediatrics compares prior art, and it has following technological effect:

the bearing component for pediatrics is simple in structure, ingenious and reasonable, the supporting plate is provided with multiple 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 bearing component for pediatrics is combined and connected with the chair, and the supporting plate is positioned at the bearing station, stable support can be provided for the pediatric patient, the burden of parents of the pediatric patient in the treatment process is greatly reduced, so that the parents and the pediatric patient can keep comfortable states in the treatment process, especially, parents of the pediatric patient can be in full-care state communication with doctors, the diagnosis efficiency and effect are improved, meanwhile, the position of the supporting plate can be adjusted in a rotating way, namely, the positions of the pediatric patients are 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 pediatric 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 the hand-held station, the supporting plate can not occupy extra space, and can prevent a child patient from sliding off from one side of the seat plate.

Drawings

FIG. 1 is a reference diagram of a use state of a pallet in a hand-held station.

Fig. 2 is a second reference view of the use state of the pallet in the hand-held station.

Figure 3 is one of the reference views showing the use of the pallet in the holding station.

Figure 4 is a second reference view of the pallet in use at the holding station.

FIG. 5 is a view showing one of the use states of the pallet at the footrest station.

Fig. 6 is a second reference view showing the use state of the pallet at the footrest station.

Figure 7 is an exploded view of the pediatric support assembly.

Fig. 8 is a schematic structural view of the sleeve, the bushing and the pin boss.

Fig. 9 is a schematic structural view of a pallet and a mandrel.

Fig. 10 is a schematic structural view of the clamping seat.

FIG. 11 is a schematic diagram showing the cooperation of the components of the pallet when the pallet is in a hand-held position.

Figure 12 is a schematic view of the mating of the components with the pallet in the holding station.

FIG. 13 is a schematic view of the cooperation of the components of the pallet at the footrest station.

Fig. 14 is a schematic view showing the engagement between the positioning pin and the guide groove when the spindle moves in the direction of the fixed axis.

FIG. 15 is a schematic view of a structure of a spindle with a thrust bearing.

Fig. 16 is a schematic structural view of the fixing shaft after a limiting groove is formed in the fixing shaft.

Fig. 17 is a second schematic structural view of the fixing shaft after a limiting groove is formed thereon.

FIG. 18 is a schematic view of the engagement between the core shaft and the limiting groove when the sleeve is positioned over the fixing shaft.

FIG. 19 is a schematic view showing the engagement of the core shaft with the position-limiting groove when the sleeve is located right under the fixing shaft.

In the figure, 1, a seat plate, 2, a clamping seat, 201, a seat body, 202, an upper clamping plate, 203, a lower clamping plate, 204, a screw rod, 205, a rotating handle, 206, a support, 3, a sleeve, 4, a pin seat, 5, a mandrel, 6, a pulling handle, 7, a supporting plate, 8, a lower limiting part, 9, a fixed shaft, 10, an upper limiting part, 11, a shaft sleeve, 12, an elastic pad, 13, a suspension arm, 14, a positioning groove, 15, a guide groove, 16, a thin shaft part, 17, a locking hole, 18, a pulling rod, 19, a thrust spring, 20, a positioning pin, 21, a sealing cover, 22, a positioning hole, 23, a limiting groove, 24 and a thrust bearing.

Detailed Description

Referring to fig. 1-9, the supporting assembly for pediatrics, disclosed by the invention, comprises a clamping seat 2, wherein the clamping seat 2 can be combined and connected with a chair, a fixed shaft 9 is arranged on the clamping seat 2, a locking hole 17 is formed in the side wall of the fixed shaft 9, and the locking hole 17 is in a blind hole shape; when the clamping seat 2 is combined and connected with the chair, the fixed shaft 9 is positioned on one side of the front end of the chair seat plate 1 and extends along the left-right direction, and the locking hole 17 is positioned on the right upper side of the fixed shaft 9; the fixed shaft 9 is sleeved with a shaft sleeve 11, the shaft sleeve 11 can only rotate around the fixed shaft 9 and cannot slip off from the fixed shaft 9, a sleeve 3 is fixed outside the shaft sleeve 11, the sleeve 3 extends along the radial direction of the shaft sleeve 11, and the inner cavities of the sleeve 3 and the shaft sleeve 11 are communicated; a pin seat 4 is fixed on one side of the sleeve 3, the pin seat 4 is communicated with the inner cavities of the sleeve 3, the preferable position relation between the pin seat 4 and the sleeve 3 is that the central axes of the inner cavities of the pin seat 4 and the sleeve 3 are vertical and intersected, a positioning pin 20 and a thrust spring 19 are limited in the pin seat 4, the thrust spring 19 is used for driving the positioning pin 20 to move towards the direction of the sleeve 3, a pull handle 6 connected with the positioning pin 20 is arranged outside the pin seat 4, and the positioning pin 20 can be manually pulled to be far away from the sleeve 3 by the pull handle 6; the sleeve 3 is internally limited with an axial movable mandrel 5, a limiting mechanism for preventing the sleeve 3 and the mandrel 5 from being separated is arranged between the sleeve and the mandrel 5, the side wall of the mandrel 5 is provided with a positioning hole 22 and a positioning groove 14, the mandrel 5 extends to the outside of the sleeve 3 and is fixedly connected with a supporting plate 7, and the supporting plate 7 is in a long strip plate shape; the clamping seat 2 or the fixed shaft 9 is provided with a lower limiting part 8 for limiting the position of the sleeve 3; after the clamping seat 2 is combined and connected with the chair, the components have the following relations:

referring to fig. 1, 2 and 11, when the sleeve 3 is rotated around the fixed shaft 9 and positioned right above the fixed shaft 9, the mandrel 5 can be inserted into the locking hole 17 so that the sleeve 3 cannot rotate around the fixed shaft 9, i.e. the relative position of the sleeve 3 and the fixed shaft 9 is locked, then the supporting plate 7 is positioned above the seat plate 1 and kept horizontal, the positioning pin 20 can be inserted into the positioning hole 22 by rotating and adjusting the mandrel 5, at the moment, the supporting plate 7 is positioned at the upper side of the seat plate 1 and positioned at a working position, and the supporting plate 7 is used as a handrail for a parent of a patient sitting on the chair to hold by hand; referring to fig. 3, 4 and 12, when the positioning pin 20 is not inserted into the positioning hole 22, the supporting plate 7 can be adjusted in position around the mandrel 5, and the supporting plate 7 is at the supporting station for the child patient to sit on; when the spindle 5 is inserted into the locking hole 17, the spindle 5 is moved upward to be removed from the locking hole 17;

referring to fig. 5, 6 and 13, when the sleeve 3 is rotated around the fixed shaft 9 from the front side of the fixed shaft 9 to the position right below the fixed shaft 9, the sleeve 3 is limited by the lower limit part 8 and cannot rotate backwards, at this time, the mandrel 5 is rotated and adjusted to enable the positioning pin 20 to be inserted into the positioning groove 14, the supporting plate 7 is located below the front side of the seat plate 1 and is located at a pedaling station, and the supporting plate 7 extends in the left-right direction and can be used as a pedal for a pediatric patient sitting on the chair to pedal;

referring to fig. 8, the positioning pin 20 is driven away from the sleeve 3 by the pull handle 6, and the positioning pin 20 can be manually disengaged from the positioning hole 22 and the positioning groove 14, so that the station of the pallet 7 can be adjusted as required.

This bearing subassembly for paediatrics simple structure, it is ingenious reasonable, layer board 7 has multiple station, can switch the different stations of layer board 7 through simple and convenient operation, and on the chair in the consulting room was fixed in the combination during the use, can satisfy different clinical actual need, and its theory of operation and clinical application method specifically are:

as shown in fig. 3, 4 and 12, when the pediatric patient is younger and cannot sit on the sitting plate 1 alone, the sleeve 3 can be rotated to be right above the fixed shaft 9, the mandrel 5 is moved to enable the lower end of the mandrel to be inserted into the locking hole 17, so that the supporting plate 7 is adjusted to a supporting station, a parent can sit on the sitting plate 1 in the process of the diagnosis, the pediatric patient can sit on the supporting plate 7 in a horizontal state, the parent only needs to hold or embrace the pediatric patient in a holding manner without bearing the weight of the pediatric patient in the process of the examination, the burden of the parent of the pediatric patient in the process of the diagnosis is greatly reduced, the parent and the pediatric patient can keep a comfortable state in the process of the diagnosis, particularly, the parent of the pediatric patient can communicate with a doctor in a whole mind, and the diagnosis efficiency and effect are improved; meanwhile, the mandrel 5 and the sleeve 3 can rotate relatively in the state, and parents can adjust the position of the supporting plate 7 in a rotating mode in the treatment process so as to adjust the body position and the position of the pediatric patient, so that the comfort of the pediatric patient and the parents of the pediatric patient can be improved, the comfort requirement difference of different users can be met, and in addition, doctors can conveniently and quickly check specific parts of the body of the pediatric patient; when layer board 7 was in the bearing station, sleeve pipe 3 can't be rotatory around fixed axle 9, and the atress of dabber 5 leads to dabber 5 can not carry out axial displacement, makes dabber 5 can keep vertical state from this to guarantee layer board 7 and maintain at the bearing station and provide stable bearing effect for child patient.

Referring to fig. 5, 6 and 13, when the infant patient can sit on the seat board 1 alone, the sleeve 3 can be rotated to rotate from the front side of the fixed shaft 9 to the position right below the fixed shaft 9, the core shaft 5 can be rotated to insert the positioning pin 20 into the positioning slot 14, that is, the supporting plate 7 is adjusted to the pedal station, and at this time, the supporting plate 7 is positioned below the front side of the seat board 1 and extends along the left-right direction, and can be used as a pedal for the infant patient to tread, so that the infant patient can sit on the seat board 1 more comfortably, and the occurrence of limb numbness and the like can be avoided; when the supporting plate 7 is located at the pedaling station, the sleeve 3 is limited by the lower limiting part 8 and cannot rotate backwards and downwards, the sleeve 3 cannot rotate forwards and upwards due to stress, namely, the position of the sleeve 3 is constant, meanwhile, the mandrel 5 cannot rotate relative to the sleeve 3 due to the matching of the positioning pin 20 and the positioning groove 14, the mandrel 5 cannot move axially due to stress, namely, the relative position of the mandrel 5 and the sleeve 3 is constant, and therefore the supporting plate 7 can be maintained at the pedaling station and provides a stable supporting effect for the lower limbs of the pediatric patient.

When the above functions are not needed, as shown in fig. 1, 2 and 11, the sleeve 3 can be rotated to be right above the fixed shaft 9, the lower end of the mandrel 5 is inserted into the locking hole 17, then the mandrel 5 is rotated to enable the positioning pin 20 to be inserted into the positioning hole 22, so that the supporting plate 7 is adjusted to a hand-holding station, and then the supporting plate 7 is positioned on one side above the seat plate 1, does not occupy extra space and cannot move, and can be used as a handrail to improve the comfort of a user, and meanwhile, the supporting plate 7 positioned on one side can prevent a child patient from sliding off from one side of the seat plate 1; when the supporting plate 7 is positioned at a hand-held station, the sleeve 3 cannot rotate around the fixed shaft 9, the mandrel 5 cannot move axially due to the stress of the mandrel 5, and the positioning pin 20 is matched with the positioning hole 22 to prevent the mandrel 5 from rotating, namely, the position of the mandrel 5 is constant and inconvenient, so that the supporting plate 7 is positioned at one side above the seat plate 1 and cannot move, and the expected effect can be finally exerted.

Referring to figure 8, in the pediatric support assembly described above, the sleeve 11 and the cannula 3 are formed as a single piece and are made of the same metal material to ensure that they have sufficient strength to support other components.

Referring to fig. 1-6, in the pediatric supporting assembly, when the supporting plate 7 is in the pedaling station, one side of the supporting plate faces upwards for pedaling, and when the supporting plate 7 is in the walking station and the supporting station, the other side of the supporting plate faces upwards for sitting or supporting, so that the sanitation of the supporting plate 7 in the walking station and the supporting station is ensured; meanwhile, based on the characteristics, the elastic cushion 12 is arranged on one surface of the supporting plate 7, when the supporting plate 7 is positioned at the hand-held station and the bearing station, the elastic cushion 12 is just positioned on 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 cushion 12 is positioned on the lower side of the supporting plate 7, so that the supporting plate is not trampled to be polluted.

Referring to fig. 7 and 9, in the pediatric supporting assembly, the supporting plate 7 is made of a low-density composite material, and the main body of the supporting plate is a hollow structure, so as to reduce the self-weight of the supporting plate to reduce the load on other components such as the mandrel 5 and the sleeve 3, while ensuring sufficient strength for supporting 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. 6 and 9, in the pediatric supporting assembly, a suspension arm 13 is disposed at an end of the mandrel 5 away from the sleeve 3, the suspension arm 13 and the mandrel 5 are integrated, and the suspension arm 13 is fixedly connected with the supporting plate 7, so as to improve the bearing capacity of the supporting plate 7; in practice, the cantilever arm 13 and the mandrel 5 are preferably formed by bending a piece of metal.

Referring to fig. 15, in the pediatric supporting assembly, the mandrel 5 is provided with a thrust bearing 24, when the supporting plate 7 is located at the supporting station and the holding station, the thrust bearing 24 abuts against the upper end of the sleeve 3, and the load generated by the mandrel 5 in the vertical direction is transmitted to the sleeve 3 through the thrust bearing 24, so that the resistance generated when the mandrel 5 and the sleeve 3 rotate relatively is reduced, and the relative rotation between the mandrel 5 and the sleeve 3 is more labor-saving.

Referring to figures 1 to 4, in the pediatric support assembly described above, the pin bosses 4 are located directly behind the sleeves 3 when the support plate 7 is in the holding and support positions, thereby ensuring that the pin bosses 4 are located so as not to interfere with the use of the pediatric support assembly in the holding and support positions.

In the pediatric supporting assembly described above, the pin receptacles 4 are used to receive the locating pins 20, and the engagement between them is known in the art and can be implemented in a variety of ways, preferably as follows:

referring to fig. 8, the pin seat 4 has a cylindrical cavity communicated with the inner cavity of the sleeve 3, a screw thread combined cover 21 is disposed at one end of the pin seat 4 away from the sleeve 3, a through hole is disposed at the center of the cover 21, the positioning pin 20 is disposed in the cavity and can move axially, a pull rod 18 is disposed at one end of the positioning pin 20 away from the sleeve 3, the pull rod 18 passes through the through hole at the center of the cover 21 and then is fixedly connected with the pull handle 6, the thrust spring 19 is sleeved outside the pull rod 18, and two ends of the thrust spring 19 respectively abut against the end portions of the cover 21 and the positioning pin 20.

Referring to fig. 4, 5, 11 and 13, in the pediatric supporting assembly, the fixing seat 2 or the fixing shaft 9 is provided with an upper limiting portion 10 for limiting the position of the sleeve 3; when the sleeve 3 rotates around the fixed shaft 9 from the front side of the fixed shaft 9 to the position right above the fixed shaft 9, the sleeve 3 is limited by the upper limiting part 10 and cannot rotate backwards; therefore, when the supporting plate 7 is adjusted to a bearing station and a hand-held station, the sleeve 3 can be adjusted to be right above the fixed shaft 9 more quickly and accurately, and the operation is more convenient and quicker; meanwhile, the lower limit part 8 and the upper limit part 10 limit the rotation of the sleeve 3 within a smaller angle range, so that the supporting plate 7 can be switched between different stations more flexibly and conveniently.

In the pediatric supporting assembly, the limiting mechanism is used for preventing the mandrel 5 from being separated from the sleeve 3 so as to ensure that the supporting plate 7 is supported by the mandrel 5 and the sleeve 3 and can bear downward pressure generated by treading when the supporting plate 7 is in a treading station; in terms of the prior art, the limiting mechanism has various embodiments, and the preferred structure is as follows:

referring to fig. 9 and 13, the limiting mechanism is a thin shaft part 16, and the thin shaft part 16 is a thin section of the mandrel 5, that is, the outer diameter of the thin shaft part 16 is smaller than that of the other parts of the mandrel 5, so that one end of the thin shaft part 16 close to the sleeve 3 has a step; the positioning hole 22 and the positioning groove 14 are both arranged on the thin shaft part 16; the positioning pin 20 is matched with the thin shaft part 16, so that the mandrel 5 and the sleeve 3 can move axially relative to each other but can not be separated; in the structure of the limiting mechanism, the function of the positioning pin 20 is reasonably expanded, so that the component utilization rate of the positioning pin 20 is improved, the thin shaft part 16 can be prefabricated simultaneously when the main body of the mandrel 5 is manufactured, other components do not need to be connected and installed, and finally the limiting mechanism is easy to implement and is lower in cost;

further, after the positioning pin 20 is pulled away from the sleeve 3 by the pull handle 6, the thin shaft part 16 cannot provide a limiting effect for the mandrel 5, and the mandrel 5 can be pulled out from the sleeve 3; based on the design, the core shaft 5 and the sleeve 3 can be flexibly and quickly disassembled and assembled according to actual requirements of transportation, placement and the like.

Referring to fig. 7, 9 and 14, in the pediatric supporting assembly, the mandrel 5 is provided with a guiding groove 15 communicating with the positioning groove 14, the guiding groove 15 is located at an end of the positioning groove 14 away from the fixing shaft 9, the bottom of the guiding groove 15 is a slope, when the positioning pin 20 is inserted into the positioning groove 14, if the mandrel 5 is driven to move in the sleeve 3 towards the fixing shaft 9, the positioning pin 20 will enter the guiding groove 15 and slide out of the guiding groove 15 through the bottom of the guiding groove 15; therefore, when the supporting plate 7 is switched from the pedal station to the bearing station, after the sleeve 3 is rotated to be right above the fixed shaft 9, the mandrel 5 can automatically move downwards by means of gravity to be inserted into the locking hole 17, and in the process that the mandrel 5 moves downwards, the positioning pin 20 automatically slides out of the positioning groove 14 through the guide groove 15 without manually holding the pull handle 6 to remove the matching between the positioning pin 20 and the positioning groove 14, and then the supporting plate 7 can be switched to the hand station if being rotated; based on above-mentioned design for when layer board 7 was switched to bearing station and hand station by pedal station, operation convenient and fast more, it is laborsaving to save trouble.

In foretell bearing component for the paediatrics, card solid seat 2 be used for carrying out the built-up connection with the chair to fix this bearing component for the paediatrics on the chair, in the actual processing preparation to this bearing component for the paediatrics, card solid seat 2 has multiple embodiment, can make it can with the 1 built-up connection of seat of chair, also makes it carry out fixed connection with the chair leg of chair, card solid seat 2 preferred adoption is as follows structure:

referring to fig. 16, the fastening seat 2 includes a seat body 201, the fixing shaft 9 is fixed on one side of the seat body 201, the other side of the seat body 201 is fixed with an upper clamping plate 202 and a support 206 which are distributed up and down, a screw hole extending up and down is formed in the support 206, a screw 204 in threaded fit is arranged in the screw hole, the lower end of the screw 204 extends to the lower side of the support 206 and is fixedly connected with a rotating handle 205, and the upper end of the screw 204 extends to the upper side of the support 206 and is fixedly connected with a lower clamping plate 203; the lower clamp plate 203 and the upper clamp plate 202 are close to each other, so that the seat plate 1 of the chair can be clamped;

in the structure of the clamping seat 2, the seat body 201, the upper clamp plate 202 and the lower clamp plate 203 form an F shape, and the distance between the upper clamp plate 202 and the lower clamp plate 203 can be adjusted steplessly, so that the clamping seat 2 can be stably and firmly clamped on one side of the front end of the seat plate 1, is firmly combined with the seat plate 1, and can indirectly provide stable support for the supporting plate 7; generally, most of the seat boards 1 of the chairs are flat boards, so the clamping seat 2 can be almost suitable for all chairs and has extremely high applicability; the clamping seat 2 has a simple structure, is convenient to disassemble and assemble with a chair, and is easy to manufacture.

Referring to fig. 16-19, in the pediatric supporting assembly, the fixed shaft 9 is provided with a limiting groove 23 along the side wall of the cambered surface, the limiting groove 23 has two ends which are not communicated, the two ends of the limiting groove 23 are respectively used as an upper limiting part 10 and a lower limiting part 8, and the locking hole 17 is provided at one end of the limiting groove 23; when the shaft sleeve 11 and the fixed shaft 9 rotate relatively, one end of the mandrel 5 close to the fixed shaft 9 is always positioned in the limiting groove 23 and moves along the limiting groove 23; when the clamping seat 2 is combined and connected with the chair, the upper limit part 10 is positioned at the upper side of the fixed shaft 9, the lower limit part 8 is positioned at the lower side of the fixed shaft 9, the limit groove 23 passes through the front side of the fixed shaft 9, when the sleeve 3 rotates from the front side of the fixed shaft 9 to the position right below the fixed shaft 9, the mandrel 5 is abutted against the lower limit part 8, so that the sleeve 3 cannot rotate backwards, and when the sleeve 3 rotates from the front side of the fixed shaft 9 to the position right above the fixed shaft 9, the mandrel 5 is abutted against the upper limit part 10, so that the sleeve 3 cannot rotate backwards;

based on the matching mode of the fixed shaft 9 and the mandrel 5, the fixed shaft 9 and the shaft sleeve 11 can be prevented from being separated without arranging other axial limiting devices, the structures of the upper limiting part 10 and the lower limiting part 8 are simpler and easier to implement, and a mechanism for limiting the rotation stroke of the sleeve 3 is not required to be arranged additionally, so that the bearing assembly for pediatrics is simpler and more compact in structure; meanwhile, based on the design, after the mandrel 5 is pulled out of the sleeve 3, the fixed shaft 9 and the shaft sleeve 11 can move axially, namely the shaft sleeve 11 can be detached from one end of the fixed shaft 9, so that the components in the bearing assembly for pediatrics can be flexibly detached according to actual requirements such as transportation, placement and the like.

Claims

1. A bearing component for pediatrics comprises a clamping seat which can be combined and connected with a chair, wherein a fixed shaft is arranged on the clamping seat, and a locking hole is formed in the side wall of the fixed shaft; the fixed shaft is sleeved with a sleeve which can only rotate around the fixed shaft, a sleeve which extends 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 sleeve; 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 capable of moving axially 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; the clamping seat or the fixed shaft is provided with a lower limiting part; after the clamping seat is combined and connected with the chair;

when the sleeve is positioned right above the fixed shaft, the mandrel can be inserted into the locking hole, the supporting plate is positioned above the seat plate and kept 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 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 adjust the position around the mandrel, and the supporting plate is positioned at a bearing station for a child patient to sit on;

2. The pediatric support assembly of claim 1 wherein: the locking hole is in a blind hole shape.

3. The pediatric support assembly of claim 1 wherein: the central axes of the inner cavities of the positioning pin and the sleeve are vertical and intersected.

4. The pediatric support assembly of claim 1 wherein: the shaft sleeve and the sleeve are of an integrated structure and are made of the same metal material.

5. The pediatric support assembly of 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.

6. The pediatric support assembly of 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.

7. The pediatric support assembly of 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.

8. The pediatric support assembly of claim 1 wherein: when the supporting plate is positioned at the hand-held station and the bearing station, the pin boss is just positioned right behind the sleeve.

9. The pediatric support assembly of claim 1 wherein: the pin boss have one be the cylindricality and with the communicating cavity of sleeve pipe inner chamber, the sheathed tube one end is kept away from to the pin boss is equipped with the closing cap of screw thread combination, the closing cap center has seted up the via hole, the locating pin be located the cavity and can the axial displacement position, the sheathed tube one end is kept away from to the locating pin is equipped with the pull rod, the pull rod pass behind the via hole at closing cap center with pull handle fixed connection, thrust spring cover put outside the pull rod, thrust spring's both ends respectively with closing cap and locating pin tip support against.

10. The pediatric support assembly of claim 1 wherein: the clamping seat or the fixed shaft is provided with an upper limiting part for limiting the position of the sleeve; when the sleeve rotates around the fixed shaft from the front side of the fixed shaft to the position right above the fixed shaft, the sleeve is limited by the upper limiting part and cannot rotate backwards.