CN113967144A

CN113967144A - Children puncture bed

Info

Publication number: CN113967144A
Application number: CN202111190485.1A
Authority: CN
Inventors: 张猛; 戴晴; 吴成; 龙云
Original assignee: Anhui Children's Hospital
Current assignee: Anhui Children's Hospital
Priority date: 2021-10-13
Filing date: 2021-10-13
Publication date: 2022-01-25
Anticipated expiration: 2041-10-13
Also published as: CN113967144B

Abstract

The invention discloses a children puncture bed, which comprises a bed plate, a bed frame and supporting legs, wherein the bed plate is horizontally arranged on the left side and the right side, the bed frame is arranged on the outer side of the bed plate, the supporting legs are arranged at the lower end of the bed frame, a through hole for fixing children is formed in the upper end of the bed plate, a U-shaped pull belt which penetrates downwards is arranged in the through hole, an anti-falling tray which abuts against the upper side of the bed plate is arranged at the upper end of the pull belt, a bandage mechanism for fixing the bodies of the children is arranged at the upper end of the tray, and elastic pull cloth which is arranged at the lower end of the bed frame, close to one side, and provides elastic pulling force is connected to the other end of the pull belt. The bed is characterized by further comprising a guide mechanism arranged at the lower ends of the drawstrings and the bed board and used for keeping the drawstrings in a U-shaped arrangement, and a speed control mechanism which can be clamped and fixed when the drawstrings are pulled quickly is arranged between the drawstrings and the elastic cloth. When children twist by a large margin, the stretching strap moves fast, and the stretching strap drives the deflector and moves down to because inertia effect to make relative motion between cardboard and the deflector, produce the upset, the card is gone into between the protruding stupefied.

Description

Children puncture bed

Technical Field

The invention relates to the field of child puncture beds, in particular to a child puncture bed.

Background

For the bone marrow puncture inspection, considering operation safety and puncture success rate, usually select infant's iliac posterior superior crest as the puncture point, this just needs the patient to have fixed position, often selects the prone position, and children have its self characteristics, and the infant often fear the psychology and can not cooperate, and then increases the puncture degree of difficulty and reduces the puncture success rate. For the bone marrow puncture of children, at least two or more medical staff are needed to fix the sick children, the posterior iliac crest puncture point is exposed, the doctor operates to puncture, and then the other doctor carries out the bone marrow smear, so that at least three to four people are needed to complete the puncture. The existing puncture bed is only a common hospital bed, and is not fixed to children, or is firmly fixed to the children and has no toughness, so that the restraint feeling of the children is strong, children patients resist the children, the children patients suffer great pain, and the children patients lack humanistic care. The other type of the bone marrow biopsy instrument has toughness, but when children twist forcefully, the body shaking amplitude is large, the puncture is affected, the puncture success rate is difficult to ensure, puncture injury and failure are easily caused, and the dilution of bone marrow liquid cannot achieve accurate bone marrow cytology examination or bone marrow biopsy. Therefore, how to restrict the rapid wiggling and ensure the success rate of the puncture while ensuring that the children can slightly wiggle is a problem which needs to be solved urgently by technical personnel in the field.

Disclosure of Invention

The invention aims to provide a child puncture bed to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a children puncture bed, includes the bed board of controlling the level setting, sets up the bed frame in the bed board outside and installs the supporting leg at the bed frame lower extreme, fixed children's through-hole has been seted up to the upper end of bed board, and installs the stretching strap that is "U" type after wearing out downwards in the through-hole, and the upper end of stretching strap is provided with to support the tray for the anticreep at the bed board upside, the bandage mechanism that fixed children's body was used is installed to the upper end of tray, the other end of stretching strap is connected with and installs the elasticity tensile elasticity cloth that provides that closes on one side lower extreme at the bed frame.

The bed is characterized by further comprising a guide mechanism arranged at the lower ends of the drawstrings and the bed board and used for keeping the drawstrings in a U-shaped arrangement, and a speed control mechanism which can be clamped and fixed when the drawstrings are pulled quickly is arranged between the drawstrings and the elastic cloth.

Preferably, the through-hole includes four limbs mounting holes symmetrically arranged on the left and right sides of the upper end of the bed board and corresponding to four limbs and four middle mounting holes symmetrically arranged on the middle part of the bed board and corresponding to the waist and the hip.

Preferably, bandage mechanism is including fixing two first bandages and setting the second bandage on the tray of mid-mounting hole upside around four limbs mounting hole upside tray upper end, pastes through first magic between two first bandages on same tray and connects, pastes through the second magic between two second bandages around and connects.

Preferably, the guide mechanism comprises a horizontal transverse plate arranged at the bottom of the inner cavity of the pull belt, baffle plates for limiting the pull belt to slide outwards are fixed on the left side and the right side of the lower end of the transverse plate, and a vertical plate installed at the lower end of the bed plate is fixed at the upper end of the transverse plate.

Preferably, the riser is sleeved with a matched sleeve plate convenient for adjusting the height of the transverse plate from top to bottom, the upper end of the sleeve plate is fixed at the lower end of the bed plate, and the circumferential lower side of the sleeve plate is in threaded connection with a fastening knob with the inner end abutting against the riser.

Preferably, accuse quick-witted is including fixing the vertical deflector between stretching strap and elasticity cloth and cup jointing the guide ring of the looks adaptation on the deflector, the guide ring is installed in the bottom of bed frame through the company of both sides pulling, the deflector stretches out about behind the guide ring both ends respectively articulated be connected with the cardboard of downward sloping, and pass through torsional spring connection between cardboard and the deflector, both ends are fixed with respectively and carry out spacing limiting plate after cardboard upset certain angle about the deflector, both ends are installed decurrent locking board respectively about the guide ring, and two relative one ends of locking board set up around setting up equally spaced respectively convenient to the cardboard rotate certain angle after the protruding stupefied of card income.

Preferably, the upper end of the locking plate is vertically fixed with a telescopic block pointing to the guide ring, the telescopic block is sleeved with a matched sleeve fixed on the guide ring, and the sleeve is in threaded connection with a bolt of which the inner end abuts against the telescopic block.

Preferably, a horizontal supporting plate is fixed between the supporting legs, and an elastic telescopic mechanism is arranged between the tray and the bed plate so that the bed plate moves downwards after the child lies on the bed plate.

Preferably, the telescopic mechanism comprises a plurality of guide posts which are fixed on the supporting plate at equal intervals and have square upward cross sections, guide sleeves which can move up and down and stretch and are fixed at the lower end of the bed plate and are matched are sleeved on the guide posts, and the guide posts are connected with the top wall of the inner cavity of the guide sleeve through a plurality of springs.

Preferably, a spongy cushion is arranged on the bed board, and the tray is positioned on the upper side of the spongy cushion.

Compared with the prior art, the invention has the beneficial effects that:

1. children lie prone on the bed board, four limbs stretch, the second bandage is pulled to fix the waist and the hip, the second magic tape is convenient to fix and adjust the tightness, then the first bandage is pulled to realize the fixation of the four limbs, the first magic tape is convenient to fix and adjust the tightness, here, the two first bandages are fixed on the same tray, the gap between the first bandage and the four limbs is avoided when the children twist, the fixing effect is good, the tray is connected with the drawstring, the tightness cloth is arranged between the drawstring and the bed frame, therefore, when the children twist, a certain amount of activity is generated, the constraint feeling is reduced, the children feel more comfortable, when the children twist greatly, the drawstring moves rapidly, the drawstring drives the guide plate to move downwards, due to the inertia effect, the clamping plate does not reach the movement, thereby the relative movement between the clamping plate and the guide plate is promoted, the turnover is generated, then the clamping plate is clamped between two adjacent convex ridges up and down, and the limiting plate at the rear side also limits the clamping plate to continue turnover, therefore, locking is realized, rapid twisting or shaking of children is limited, normal puncture is guaranteed, when the limbs or the waist of the children return, the guide plate moves upwards under the elastic tension of the elastic cloth, and the clamping plate returns under the action of the torsion spring;

2. the telescopic block can be pulled by unscrewing the bolt, so that the distance from the locking plate to the clamping plate and the convex edge is adjusted, and the sensitivity is adjusted;

3. the vertical plate can be pulled up and down by loosening the fastening knob, so that the initial tension of the elastic cloth is changed, and the elastic cloth can be flexibly adjusted according to the requirement;

4. after children lie on the bed board, the spring is compressed, the bed board moves down, the bed board drives the vertical plate to move down, the transverse plate drives the drawstring to pull down, the drawstring drives the elastic cloth to stretch, thus, the initial tension of the elastic cloth is different for children with different weights, the generated initial tension is different, the automatic adjustment initial tension is more convenient to use.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a top view of the present invention;

FIG. 3 is a top view of the present invention;

FIG. 4 is a left side view of the present invention;

FIG. 5 is a first isometric view of the present invention;

FIG. 6 is a second axial side view of the present invention;

FIG. 7 is an exploded view of the present invention;

FIG. 8 is a schematic view showing a connection structure of the drawstring and the elastic cloth according to the present invention;

FIG. 9 is a right side view of the drawstring and elastic of the present invention;

FIG. 10 is an isometric view of the attachment of the draw tape to the elastic of the present invention.

In the figure: 1. a bed board; 11. a bed frame; 12. supporting legs; 13. a sponge cushion; 2. a tray; 21. four-limb mounting holes; 22. a middle mounting hole; 23. a first bandage; 24. a second bandage; 25. a first magic tape; 26. a second magic tape; 3. pulling the belt; 31. elastic cloth; 32. a transverse plate; 33. a baffle plate; 34. a vertical plate; 35. sheathing; 4. a guide plate; 41. a guide ring; 42. connecting plates; 43. clamping a plate; 44. a torsion spring; 45. a limiting plate; 46. locking the plate; 47. convex edges; 48. a telescopic block; 49. a sleeve; 5. a support plate; 51. a guide post; 52. a guide sleeve; 53. a spring.

Detailed Description

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

Referring to fig. 1 to 10, the present invention provides a technical solution of a child puncture bed: the utility model provides a children puncture bed, bed board 1 that sets up including controlling the level, bed frame 11 and the supporting leg 12 of installing at bed frame 11 lower extreme in the bed board 1 outside set up, fixed children's through-hole has been seted up to bed board 1's upper end, and install the stretching strap 3 that is "U" type after wearing out downwards in the through-hole, the upper end of stretching strap 3 is provided with supports tray 2 for the anticreep at 1 upside of bed board, the bandage mechanism that fixed children's body was used is installed to tray 2's upper end, the other end of stretching strap 3 is connected with and installs and close on one side lower extreme and provide elastic tension's elasticity cloth 31 at bed frame 11. Bandage mechanism is used for fixed children's buttock, waist and four limbs, and the puncture position is between buttock and waist, and elasticity cloth 31 has, can impel children to cushion when slight removal, reduces the constraint and feels, makes children feel more comfortable. A spongy cushion 13 is arranged on the bed board 1, and the tray 2 is positioned on the upper side of the spongy cushion 13. The child can more comfortably lie on the table.

The through holes comprise four-limb mounting holes 21 which are symmetrically arranged at the left side and the right side of the upper end of the bed plate 1 and correspond to four limbs and four middle mounting holes 22 which are symmetrically arranged at the middle part of the bed plate 1 and correspond to the waist and the hip. The shapes of the four-limb mounting holes 21 and the middle mounting hole 22 can correspond to those of the drawstring 3 and are strip-shaped, the drawstring 3 is not easy to be too narrow, the pulling stability is ensured, 4-8 cm can be adopted, and the material can be the safety belt material on the automobile. The four limbs mounting hole 21 corresponds the position of four limbs, also can adjust in a flexible way as required during actual production, and respectively two around the middle part mounting hole 22 carry out the fixed of buttock and waist. Bandage mechanism is including fixing two first bandages 23 and setting the second bandage 24 on the tray 2 on the side of middle part mounting hole 22 in the front and back two first bandages 23 on the 21 upside tray 2 upper ends of four limbs mounting hole, connects through first magic subsides 25 between two first bandages 23 on same tray 2, and connects through second magic subsides 26 between two second bandages 24 around and. Here, the number of the first bandages 23 corresponding to the four limb mounting holes 21 is two, so that the fixing effect on the child is good, a gap is not easy to be formed when the child pulls, and the front and rear sides are pulled together when the child pulls the waist and the hip, that is, the number of the second bandages 24 corresponding to the middle mounting hole 22 is one.

The bed is characterized by further comprising a guide mechanism which is arranged at the lower ends of the drawstring 3 and the bed board 1 and used for keeping the drawstring 3 in a U-shaped arrangement, and a speed control mechanism which can be clamped and fixed when the drawstring 3 is pulled quickly is arranged between the drawstring 3 and the elastic cloth 31. The guide mechanism ensures that the drawstring 3 normally moves and cannot be clamped, and simultaneously ensures that the two ends of the drawstring 3 are in a vertical state. The fast mechanism of accuse is that the cooperation elasticity cloth 31 is used, and elasticity cloth 31 can allow children to slowly move the certain distance to guarantee the comfort level, the fast mechanism of accuse then avoids children to shake by a wide margin, blocks to die, thereby guarantees the normal clear of puncture.

The guide mechanism comprises a horizontal transverse plate 32 arranged at the bottom of the inner cavity of the drawstring 3, baffle plates 33 for limiting the drawstring 3 to slide outwards are fixed at the left side and the right side of the lower end of the transverse plate 32, and a vertical plate 34 installed at the lower end of the bed plate 1 is fixed at the upper end of the transverse plate 32. The combination of the transverse plate 32 and the retainer plate 33 may be replaced by a flat tubular shape, and the upper vertical plate 34 may be a rod-like shape. The riser 34 is sleeved with a matched sleeve plate 35 convenient for adjusting the height of the transverse plate 32 up and down, the upper end of the sleeve plate 35 is fixed at the lower end of the bed plate 1, and the circumferential lower side of the sleeve plate 35 is in threaded connection with a fastening knob with the inner end abutting against the riser 34. The fastening knob is unscrewed, so that the vertical plate 34 can be pulled up and down, the initial tension of the elastic cloth 31 is changed, and flexible adjustment can be performed according to the requirement.

The speed control mechanism comprises a vertical guide plate 4 fixed between the pull belt 3 and the elastic cloth 31 and a guide ring 41 sleeved on the guide plate 4 and matched with each other, the guide ring 41 is installed at the bottom of the bed frame 11 through connecting plates 42 on two sides, the left end and the right end of the guide plate 4 extending out of the guide ring 41 are respectively hinged with a downward-inclined clamping plate 43, the clamping plate 43 is connected with the guide plate 4 through a torsion spring 44, limiting plates 45 for limiting after the clamping plate 43 overturns for a certain angle are respectively fixed at the left end and the right end of the guide plate 4, downward locking plates 46 are respectively installed at the left end and the right end of the guide ring 41, and convex ridges 47 which are arranged at the front end and the rear end of the two locking plates 46 at equal intervals and are convenient for the clamping plate 43 to be clamped after rotating for a certain angle are respectively arranged at the opposite ends of the two locking plates 46. When children's migration rate is too big, tray 2 rapid movement that makes progress, pulling stretching strap 3, thereby drive the downward rapid movement of deflector 4, because inertial action, cardboard 43 does not come the motion, thereby make relative motion between cardboard 43 and the deflector 4, produce the upset, then the card is gone into between two adjacent protruding stupefied 47 from top to bottom, and the limiting plate 45 of rear side also restricts cardboard 43 and continues the upset, thereby realize locking, and when children's four limbs or waist return, under the elastic tension of elasticity cloth 31, deflector 4 moves up, under torsional spring 44's effect, cardboard 43 returns, here cardboard 43 can be some heavily, inertia is bigger. The speed control mechanism can also be similar to a safety belt of an automobile, and the speed control mechanism can be blocked when the speed is too high.

The upper end of the locking plate 46 is vertically fixed with a telescopic block 48 pointing to the guide ring 41, the telescopic block 48 is sleeved with a matched sleeve 49 fixed on the guide ring 41, and the sleeve 49 is in threaded connection with a bolt with the inner end abutting against the telescopic block 48. The bolt can be loosened by screwing, so that the telescopic block 48 can be pulled, the distance between the locking plate 46 and the clamping plate 43 and the convex edge 47 can be adjusted, the sensitivity can be adjusted, a safety gap is reserved between the normal clamping plate 43 and the convex edge 47, and when the pulling belt 3 is slowly pulled, the clamping plate 43 can not be clamped in the overturning process within a certain range, the distance can reflect the sensitivity, and the distance is smaller and is more easily locked.

A horizontal supporting plate 5 is fixed between the supporting legs 12, and an elastic telescopic mechanism is arranged between the supporting plate 5 and the bed plate 1 so that the bed plate 1 moves downwards after a child lies on the bed plate. Bed board 1 can stretch out bed frame 11 downwards, separate, after children lie, bed board 1 moves down, because the one end that the stretching strap 3 is close to bed frame 11 is fixed, therefore, elasticity cloth 31 can be stretched, initial pulling force changes, heavier children, the pulling force of production is big more, the constraint effect is better like this, because, heavier children, often strength is also big more, the initial constraint power that needs is also big more, the constraint power can be along with children's weight automatic change like this, for example 30 jin of children and 60 jin of children, the strength difference is just bigger. The telescopic mechanism comprises a plurality of upward guide posts 51 with square cross sections, which are fixed on the supporting plate 5 at equal intervals, a guide sleeve 52 which can move up and down, is fixed at the lower end of the bed plate 1 and is matched with the guide posts 51 in a telescopic manner, and the guide posts 51 are connected with the top wall of the inner cavity of the guide sleeve 52 through a plurality of springs 53. After the children lie down, the spring 53 is compressed, the bed board 1 moves downwards, the bed board 1 drives the vertical plate 34 to move downwards, the transverse plate 32 drives the drawstring 3 to pull downwards, the drawstring 3 drives the elastic cloth 31 to stretch, therefore, the initial tension of the elastic cloth 31 is different for children with different weights, the generated initial tension is different, the initial tension is automatically adjusted, and the use is more convenient.

The working principle is as follows: children lie prone on the bed board 1, four limbs stretch, the waist and the hip are fixed by pulling the second bandage 24, the second magic tapes 26 are convenient to fix and adjust tightness, then the first bandage 23 is pulled to realize the fixation of the four limbs, the first magic tapes 25 are convenient to fix and adjust the tightness, here, the two first bandages 23 are fixed on the same tray 2, the generation of gaps between the first bandages 23 and the four limbs is avoided during the twisting, the fixing effect is good, the tray 2 is connected with the drawstring 3, the elastic cloth 31 is arranged between the drawstring 3 and the bed frame 11, therefore, when children twist, a certain amount of activity is provided, the binding feeling is reduced, the children feel more comfortable, when the children twist, the drawstring 3 moves rapidly, the drawstring 3 drives the guide plate 4 to move downwards, due to the inertia effect, the clamping plate 43 does not move in time, thereby promoting the relative motion between the clamping plate 43 and the guide plate 4, and generating the turnover, then the clamping plate 43 is clamped between two convex ridges 47 which are adjacent up and down, the limiting plate 45 at the rear side also limits the clamping plate 43 to continue to turn over, so that locking is achieved, children are limited from rapidly twisting or shaking, normal puncture is guaranteed, when the limbs or the waist of the children return, the guide plate 4 moves upwards under the elastic tension of the elastic cloth 31, the clamping plate 43 returns under the action of the torsion spring 44, and in addition, only one doctor operates the clamping plate, and labor force is reduced. By loosening the bolts, the telescopic block 48 can be pulled out, so that the distance from the locking plate 46 to the clamping plate 43 and the convex edge 47 can be adjusted, and the sensitivity can be adjusted. Fasten the knob soon, alright in order to pull riser 34 from top to bottom, thereby change the initial pulling force of elasticity cloth 31, more enough carry out nimble adjustment as required, children lie on bed board 1 after, spring 53 is compressed, bed board 1 moves down, bed board 1 drives riser 34 and moves down, diaphragm 32 drives 3 stimulations of stretching strap, stretching strap 3 will drive elasticity cloth 31 tensile, and thus, the children of different weights, the initial pulling force of elasticity cloth 31 is just different, the initial pulling force of production is just different, the initial pulling force of automatic adjustment, it is more convenient to use.

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

Claims

1. The utility model provides a children puncture bed, includes bed board (1) of controlling the level setting, sets up bed frame (11) in the bed board (1) outside and installs supporting leg (12) at bed frame (11) lower extreme, its characterized in that: the upper end of the bed board (1) is provided with a through hole for fixing children, a U-shaped drawstring (3) which penetrates out downwards is installed in the through hole, the upper end of the drawstring (3) is provided with an anti-falling tray (2) which is abutted to the upper side of the bed board (1), the upper end of the tray (2) is provided with a bandage mechanism for fixing the bodies of the children, and the other end of the drawstring (3) is connected with elastic cloth (31) which is installed at the lower end of one side, close to the bed frame (11), and provides elastic tension;

the bed is characterized by further comprising a guide mechanism arranged at the lower ends of the drawstring (3) and the bed board (1) and used for keeping the drawstring (3) in a U-shaped arrangement, and a speed control mechanism capable of being clamped and fixed when the drawstring (3) is rapidly pulled is arranged between the drawstring (3) and the elastic cloth (31).

2. A child puncture bed according to claim 1, wherein: the through holes comprise four limb mounting holes (21) which are symmetrically arranged at the left side and the right side of the upper end of the bed plate (1) and correspond to four limbs, and four middle mounting holes (22) which are symmetrically arranged at the middle part of the bed plate (1) and correspond to the waist and the hip.

3. A child puncture bed according to claim 2, wherein: bandage mechanism is including fixing two first bandages (23) and setting second bandage (24) on middle part mounting hole (22) upside tray (2) around four limbs mounting hole (21) upside tray (2) upper end, connects through first magic subsides (25) between two first bandages (23) on same tray (2), and connects through second magic subsides (26) between two second bandages (24) around and.

4. A child puncture bed according to claim 1, wherein: the guiding mechanism comprises a horizontal transverse plate (32) arranged at the bottom of an inner cavity of the pull belt (3), baffle plates (33) limiting the outward sliding-out of the pull belt (3) are fixed on the left side and the right side of the lower end of the transverse plate (32), and a vertical plate (34) installed at the lower end of the bed plate (1) is fixed on the upper end of the transverse plate (32).

5. A child puncture bed according to claim 4, wherein: the bedplate is characterized in that a sleeve plate (35) which is matched with the riser (34) and is convenient to adjust the height of the transverse plate (32) up and down is sleeved on the bedplate, the upper end of the sleeve plate (35) is fixed at the lower end of the bedplate (1), and the circumferential lower side of the sleeve plate (35) is in threaded connection with a fastening knob which tightly abuts against the riser (34) at the inner end.

6. A child puncture bed according to claim 1, wherein: the speed control mechanism comprises a vertical guide plate (4) fixed between the pull belt (3) and the elastic cloth (31) and a matched guide ring (41) sleeved on the guide plate (4), the guide ring (41) is arranged at the bottom of the bed frame (11) through connecting plates (42) at two sides, the left end and the right end of the guide plate (4) extending out of the guide ring (41) are respectively hinged with a clamping plate (43) which inclines downwards, and the clamping plate (43) is connected with the guide plate (4) through a torsion spring (44), limiting plates (45) for limiting after the clamping plate (43) is turned over for a certain angle are respectively fixed at the left end and the right end of the guide plate (4), the left end and the right end of the guide ring (41) are respectively provided with a downward locking plate (46), and the opposite ends of the two locking plates (46) are respectively provided with convex ribs (47) which are arranged at equal intervals and are convenient for the clamping plate (43) to be clamped in after rotating for a certain angle.

7. A child puncture bed according to claim 6, wherein: the upper end of the locking plate (46) is vertically fixed with a telescopic block (48) pointing to the guide ring (41), the telescopic block (48) is sleeved with a matched sleeve (49) fixed on the guide ring (41), and the sleeve (49) is in threaded connection with a bolt of which the inner end abuts against the telescopic block (48).

8. A child puncture bed according to claim 5, wherein: horizontal supporting plates (5) are fixed between the supporting legs (12), and an elastic telescopic mechanism is arranged between the supporting plates (5) and the bed plate (1) so that the bed plate (1) moves down after a child lies.

9. A child puncture bed according to claim 8, wherein: the telescopic mechanism comprises a plurality of upward guide columns (51) which are fixed on the supporting plate (5) at equal intervals, guide sleeves (52) which can move up and down and stretch and are fixed at the lower end of the bed plate (1) and matched with each other are sleeved on the guide columns (51), and the guide columns (51) are connected with the top wall of an inner cavity of the guide sleeves (52) through a plurality of springs (53).

10. A child puncture bed according to claim 1, wherein: a sponge cushion (13) is arranged on the bed board (1), and the tray (2) is positioned on the upper side of the sponge cushion (13).