CN114886718A

CN114886718A - Children's blood extraction auxiliary chair

Info

Publication number: CN114886718A
Application number: CN202210402807.2A
Authority: CN
Inventors: 夏金全
Original assignee: Individual
Current assignee: Nanjing Nuoweer Environmental Protection Technology Co ltd
Priority date: 2022-04-18
Filing date: 2022-04-18
Publication date: 2022-08-12
Anticipated expiration: 2042-04-18
Also published as: CN114886718B

Abstract

The invention relates to a blood drawing auxiliary chair, in particular to a blood drawing auxiliary chair for children. Provided is a child blood drawing auxiliary chair which can reduce the touch feeling of a child and can normally perform the blood drawing work. The invention is realized by the following technical approaches: the utility model provides a children's blood extraction auxiliary chair, including support frame, seatpad, first bedplate, second bedplate, handrail etc. the support frame is two, and left side support frame downside rotary type is equipped with first bedplate, and right side support frame downside rotary type is equipped with the second bedplate, and first bedplate and second bedplate top all are equipped with more comfortable seatpad when can making children sit, and first bedplate and second bedplate rotary type are connected, and the support frame middle part outside all is equipped with the handrail that is used for children to let hand. The barrier plate rebound can keep off in children's arm inboard, so can make children can't see the bloodletting, reduces children's fear and feels, avoids children unwilling to draw blood, makes the bloodletting normally go on.

Description

Children's blood extraction auxiliary chair

Technical Field

The invention relates to a blood drawing auxiliary chair, in particular to a blood drawing auxiliary chair for children.

Background

When need carry out the physical examination, often will draw blood, detect the blood of drawing and analyze can be preliminary to the health condition understanding, for the convenience is drawn blood to children, often will use appurtenance.

Patent application No. CN202022117454.0 discloses an auxiliary tool for pediatric blood extraction, comprising a vertical plate, the bottoms of the two side surfaces of the vertical plate are fixedly connected with a transverse plate, a placing hole is arranged above the transverse plate of the vertical plate, the inner side wall of the placing hole is fixedly connected with an inflatable air bag, one side of one side surface of the inflatable air bag is fixedly connected with an air guide tube, the device passes through the placing hole on the vertical plate, the inflatable air bag, the air guide tube and the latex ball, so that the medical staff can more conveniently fix the hands of the children, and then the inflatable air bag presses the blood vessels to display the blood vessels, thereby facilitating the blood drawing of medical staff, but when the device is used for the blood drawing of children, the children can see the whole process of the blood drawing, and the children are feared when seeing the needle head, thereby can produce and support the sense of touch, and then dare not prick the needle, the work of so not being convenient for hemospasia is normally gone on.

In view of the above technical problems, there is a need to design a child blood drawing assisting chair capable of reducing the touch feeling of the child and enabling the blood drawing work to be normally performed.

Disclosure of Invention

Can see whole blood process of drawing blood in order to overcome current paediatrics blood extraction appurtenance children when drawing blood, children see the syringe needle and have inevitable to fear to produce and to support the sense of touch, and then dare not to prick the shortcoming that the work of drawing blood can't go on, provide one kind and can reduce children and support the sense of touch, make the blood extraction appurtenance chair of children that the work of drawing blood can normally go on.

The invention is realized by the following technical approaches: the utility model provides a children's blood extraction auxiliary chair, which comprises a supporting rack, the seatpad, first bedplate, the second bedplate, tensile area, handrail and restriction ring, the support frame is two, left side support frame downside rotary type is equipped with first bedplate, right side support frame downside rotary type is equipped with the second bedplate, first bedplate and second bedplate top all are equipped with the more comfortable seatpad when can making children sit, first bedplate and second bedplate rotary type are connected, evenly be connected with nine tensile areas between the support frame upside, the support frame middle part outside all is equipped with the handrail that is used for children to let hand, the handrail front side all is equipped with the restriction ring that can carry out the restriction to children's arm, still including constriction mechanism, pushing mechanism and barrier mechanism, be connected with between support frame and the first bedplate and can make children's blood extraction auxiliary chair carry out folding constriction mechanism, be equipped with pushing mechanism on the restriction ring, thereby be connected with between pushing mechanism and the handrail and can stop the sight of children and can's unable blood of watching A blocking mechanism.

In one embodiment, the retracting mechanism comprises a first rotating rod, a second rotating rod, a pulling handle and a first fixing block, the first fixing block is arranged at the lower part of the rear side of the support frame, the first rotating rod is movably arranged on the first fixing block at the left side, the second rotating rod is movably arranged on the first fixing block at the right side, the pulling handle is rotatably connected between the second rotating rod and the first rotating rod, and the pulling handle is rotatably connected with the first seat plate.

In one embodiment, the pushing mechanism comprises first fixing rods, a handle, a clamping frame and first springs, the first fixing rods are arranged on the left side and the right side of the limiting ring, the handle which is held by a child during blood drawing and avoids injury is connected between the two first fixing rods on the left side and the right side in a sliding mode, the clamping frame is rotatably arranged on the left side and the right side of the handle, and the first springs are connected between the rear side of the handle and the adjacent first fixing rods.

In one embodiment, the blocking mechanism comprises a first limiting frame, blocking plates, fixing frames and second fixing blocks, the first limiting frame is arranged on the front side of the bottom of the handrail, the blocking plates capable of blocking the vision of the children after moving upwards are arranged on the first limiting frame in a sliding mode, the fixing frames are arranged in the middle of the outer sides of the blocking plates, the second fixing blocks are arranged on the inner sides of the handles, and the second fixing blocks are all in contact with the adjacent fixing frames.

In one of them embodiment, still include the clamping mechanism that can press from both sides tight children's arm, clamping mechanism includes the crane, first sliding block, press from both sides tight piece and second spring, the equal bilateral symmetry slidingtype in restriction ring rear side is equipped with first sliding block, the outside rear side of barrier plate all is equipped with the crane, the crane all is connected with adjacent first sliding block slidingtype, the inboard equal slidingtype of first sliding block is equipped with the tight piece of clamp that can press from both sides children's arm after moving to the inboard, press from both sides and all be connected with the second spring between tight piece and the adjacent first sliding block.

In one embodiment, the blood drawing device further comprises a protection mechanism capable of preventing a child from directly drawing out an arm when drawing blood, the protection mechanism comprises a protection frame, a second fixing rod and a third spring, the second fixing rod is arranged on the rear side of each armrest, the protection frames capable of supporting the arms of the child are arranged on the front sides of the second fixing rods in a sliding mode, and the third spring is connected between the rear side of each protection frame and the rear side of the adjacent second fixing rod.

In one embodiment, the blood extraction auxiliary chair further comprises a sliding mechanism capable of facilitating pushing of the blood extraction auxiliary chair for the child to move, the sliding mechanism comprises second limiting frames, second sliding blocks, rotating wheels and fourth springs, a group of second limiting frames are symmetrically arranged on the lower portion of the supporting frame in a front-back mode, the number of the second limiting frames in each group is 2, second sliding blocks are arranged on the lower sides of the second limiting frames in a sliding mode, two fourth springs are connected between the tops of the second sliding blocks and the adjacent second limiting frames, and the rotating wheels capable of facilitating the blood extraction auxiliary chair for the child to move are rotatably connected between the adjacent second sliding blocks.

In one embodiment, the pull handle is provided with an anti-slip cover.

The invention has the advantages and positive effects that: 1. the barrier plate rebound can keep off in children's arm inboard, so can make children can't see the bloodletting, reduces children's fear and feels, avoids children unwilling to draw blood, makes the bloodletting normally go on.

2. When the child takes a blood sample, the child can hold the handle, so that the injury of the child due to the fingernail caused by the tight holding of the palm caused by pain during the blood sample can be avoided.

3. The clamp block moves towards the inner side and can clamp the arms of the children, so that the disorder of the arms of the children during blood drawing can be avoided, the blood drawing is influenced, the veins of the arms of the children can be clearer, and the blood drawing is convenient.

4. The protection frame can be always abutted against the arms of the child through the force of the third spring, and then the child is prevented from hurting the body when the child draws blood.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic perspective view of the retracting mechanism of the present invention.

Fig. 3 is a schematic perspective view of the pushing mechanism of the present invention.

Fig. 4 is a schematic perspective view of part a of the present invention.

Fig. 5 is a schematic perspective view of the blocking mechanism of the present invention.

Fig. 6 is a schematic perspective view of the part B of the present invention.

Fig. 7 is a schematic view of a first partial body structure according to the present invention.

Fig. 8 is a schematic perspective view of part C of the present invention.

Fig. 9 is a schematic perspective view of the portion D of the present invention.

FIG. 10 is a schematic view of a second partial body structure according to the present invention.

Fig. 11 is a schematic perspective view of part E of the present invention.

Fig. 12 is a schematic partial sectional perspective view of the present invention.

In the reference symbols: 1-a support frame, 2-a seat cushion, 21-a first seat board, 22-a second seat board, 3-a stretching belt, 4-a handrail, 5-a limit ring, 6-a contraction mechanism, 61-a first rotating rod, 62-a second rotating rod, 63-a pulling handle, 64-a first fixed block, 7-a pushing mechanism, 71-a first fixed rod, 72-a grip, 73-a clamping frame, 74-a first spring, 8-a blocking mechanism, 81-a first limit frame, 82-a blocking plate, 83-a fixed frame, 84-a second fixed block, 9-a clamping mechanism, 91-a lifting frame, 92-a first sliding block, 93-a clamping block, 94-a second spring, 10-a protection mechanism, 101-a protection frame, 102-a second fixed rod, 103-a third spring, 11-a sliding mechanism, 111-a second limiting frame, 112-a second sliding block, 113-a rotating wheel and 114-a fourth spring.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Example 1

A children blood extraction auxiliary chair is disclosed, referring to fig. 1 and fig. 2, comprising a support frame 1, a seat cushion 2, a first seat board 21, a second seat board 22, a stretching belt 3, armrests 4, a limit ring 5, a contraction mechanism 6, a pushing mechanism 7 and a blocking mechanism 8, wherein the support frame 1 is divided into two parts, the first seat board 21 is rotatably arranged at the lower side of the left support frame 1, the second seat board 22 is rotatably arranged at the lower side of the right support frame 1, the seat cushion 2 is respectively arranged at the top parts of the first seat board 21 and the second seat board 22, the seat cushion 2 can make children more comfortable when sitting, the first seat board 21 and the second seat board 22 are rotatably connected, nine stretching belts 3 are uniformly connected between the upper sides of the support frame 1, the armrests 4 are respectively arranged at the outer sides of the middle part of the support frame 1 in a welding manner, the armrests 4 are used for hands of children, the limit rings 5 are respectively arranged at the front sides of the armrests 4 in a welding manner, the limit rings 5 can limit the arms of the children, be connected with shrink mechanism 6 between support frame 1 and the first bedplate 21, shrink mechanism 6 can make this child's blood extraction auxiliary chair fold, is equipped with pushing mechanism 7 on the limit ring 5, is connected with blocking mechanism 8 between pushing mechanism 7 and the handrail 4, thereby blocking mechanism 8 can block children's sight and can't watch the bloodletting.

Referring to fig. 2, the retracting mechanism 6 includes a first rotating rod 61, a second rotating rod 62, a pulling handle 63 and a first fixing block 64, the first fixing block 64 is disposed on the lower portion of the rear side of the supporting frame 1 by welding, the first rotating rod 61 is movably disposed on the first fixing block 64 on the left side, the second rotating rod 62 is movably disposed on the first fixing block 64 on the right side, the pulling handle 63 with an anti-slip cover is rotatably connected between the second rotating rod 62 and the first rotating rod 61, and the pulling handle 63 is rotatably connected with the first seat plate 21.

Referring to fig. 3 and 4, the pushing mechanism 7 includes first fixing rods 71, a handle 72, a clamping frame 73 and first springs 74, the first fixing rods 71 are disposed on the left and right sides of the limiting ring 5 by welding, the handle 72 is slidably connected between the two first fixing rods 71 on the left and right sides, the handle 72 is held by a child during blood drawing to avoid injury, the clamping frames 73 are rotatably disposed on the left and right sides of the handle 72, and the first springs 74 are connected between the rear side of the handle 72 and the adjacent first fixing rods 71.

Referring to fig. 5 and 6, the blocking mechanism 8 includes a first limiting frame 81, a blocking plate 82, a fixing frame 83 and a second fixing block 84, the front side of the bottom of the handrail 4 is provided with the first limiting frame 81 in a welded manner, the first limiting frame 81 is provided with the blocking plate 82 in a sliding manner, the blocking plate 82 can block the sight of the child after moving upwards, the middle part of the outer side of the blocking plate 82 is provided with the fixing frame 83 in a welded manner, the inner side of the handle 72 is provided with the second fixing block 84 in a welded manner, and the second fixing block 84 is in contact with the adjacent fixing frame 83.

When blood is needed to be drawn for a child, the auxiliary chair can be used, the auxiliary chair is initially folded, a worker can carry the auxiliary chair to the child, the pulling handle 63 is pushed to move downwards, the first seat plate 21 and the second seat plate 22 can be rotated to be away from each other by the downward movement of the pulling handle 63, the sliding in the process of pushing the pulling handle 63 to move can be avoided under the action of the anti-sliding sleeve, the first seat plate 21 and the second seat plate 22 are rotated to be away from each other, so that the support frames 1 on the left side and the right side are away from each other, the stretching belt 3 is stretched, then the child can sit on the seat cushion 2, the child can sit more comfortably under the action of the seat cushion 2, two hands are placed on the armrests 4 and penetrate through the limiting rings 5, after the child holds the palm grip 72, the grip 72 can be pushed to drive the clamping frame 73 to move forwards, the first spring 74 is stretched, and when the clamping frame 73 moves forwards to be contacted with the first fixing rod 71 and then move continuously, the clamping frame 73 rotates upwards under the action of the first fixing rod 71, when the clamping frame 73 moves forwards to cross the first fixing rod 71, the clamping frame 73 rotates and resets under the action of gravity, the clamping frame 73 can be clamped by the first fixing rod 71, the handle 72 moves forwards and simultaneously drives the second fixing block 84 to move forwards, the second fixing block 84 moves forwards to drive the fixing frame 83 to move upwards, the fixing frame 83 moves upwards to drive the blocking plate 82 to move upwards, the blocking plate 82 moves upwards to be blocked at the inner side of the arm of the child, so that the child cannot see the arm, then the worker can take blood, the arm of the child is blocked, so that the child cannot see the blood taking process, the fear can be reduced, the blood taking can be better performed, when the palm of the child holds the handle 72, the phenomenon that the palm is injured due to the fingernails when the palm is tightly held due to pain can be avoided, and after the blood taking is finished, the staff alright upwards rotates card frame 73, children alright take the arm out, handle 72 under the effect of first spring 74, card frame 73 and second fixed block 84 backward move and reset, loosen card frame 73, card frame 73 just can rotate under the action of gravity and reset, second fixed block 84 moves backward and no longer supports mount 83, mount 83 and barrier plate 82 move down and reset under the action of gravity, alright pulling handle 63 upward movement afterwards, pulling handle 63 moves upward just can make first bedplate 21 and second bedplate 22 rotate and be close to each other, thereby make the support frame 1 of the left and right sides be close to each other, tensile area 3 resets, so can make this supplementary chair folded convenient to carry, the staff alright put this supplementary chair back the normal position.

Example 2

On the basis of embodiment 1, as shown in fig. 1, 7, 8 and 9, the child arm clamp further includes a clamping mechanism 9, the clamping mechanism 9 can clamp the child arm, the clamping mechanism 9 includes a lifting frame 91, a first sliding block 92, clamping blocks 93 and a second spring 94, the first sliding blocks 92 are symmetrically arranged on the rear side of the limiting ring 5 in a sliding manner, the lifting frame 91 is arranged on the outer rear side of the blocking plate 82 in a welding manner, the lifting frame 91 is connected with the adjacent first sliding blocks 92 in a sliding manner, the clamping blocks 93 are arranged on the inner sides of the first sliding blocks 92 in a sliding manner, the clamping blocks 93 can clamp the child arm after moving inwards, and the second springs 94 are connected between the clamping blocks 93 and the adjacent first sliding blocks 92.

The barrier 82 rebound drives crane 91 rebound, crane 91 rebound drives first sliding block 92 and moves to the inboard, and then make and press from both sides tight piece 93 and second spring 94 and move to the inboard, press from both sides tight piece 93 and move to the inboard alright carry out spacing clamp to children's arm and press from both sides, still it is clearer to make children's arm vein, be convenient for draw blood, second spring 94 plays the cushioning effect, when preventing to press from both sides tight piece 93 and press from both sides tight back first sliding block 92 with children's arm and continue to move to the inboard, press from both sides tight piece 93 and can press from both sides children's arm and press from both sides tightly, thereby can not lead to the fact the influence to children's arm back-and-forth movement, draw blood and finish children's arm and take out the back, sliding block 91 rebound drives first 92 to the outside and move, and reset so that clamp piece 93 and second spring 94 move to the outside.

Referring to fig. 1, fig. 10 and fig. 11, still including protection machanism 10, protection machanism 10 can avoid children directly to take out the arm when drawing blood, protection machanism 10 is including protection frame 101, second dead lever 102 and third spring 103, the handrail 4 rear side all welds there is second dead lever 102, the equal slidingtype of second dead lever 102 front side is equipped with protection frame 101, protection frame 101 can support children's arm, all be connected with third spring 103 between protection frame 101 rear side and the adjacent second dead lever 102 rear side.

When the arm of the child needs to pass through the limiting ring 5, a worker can firstly pull the protection frame 101 to move backwards, the third spring 103 is compressed, then the child can place the arm on the armrest 4 and pass through the limiting ring 5, then the protection frame 101 is loosened, the protection frame 101 moves forwards under the action of the third spring 103 to reset, the protection frame 101 can move forwards to abut against the arm of the child, when the child draws blood, the child can draw out the hand violently due to pain, so that the protection frame 101 can always abut against the arm of the child under the action of the third spring 103, the arm of the child cannot be drawn backwards, the injury to the body caused by the violent drawing-out of the hand during the blood drawing is avoided, when the child needs to leave after the blood drawing is finished, the worker can pull the protection frame 101 to move backwards again, the third spring 103 is compressed, and the child can draw out the arm to leave, then the protection frame 101 is released again, and the protection frame 101 moves forward to be reset under the action of the third spring 103.

Referring to fig. 1 and 12, the blood extraction auxiliary chair further comprises a sliding mechanism 11, the sliding mechanism 11 can facilitate pushing the blood extraction auxiliary chair for children to move, the sliding mechanism 11 includes a second limiting frame 111, a second sliding block 112, a rotating wheel 113 and a fourth spring 114, a set of second limiting frames 111 are symmetrically fixedly connected to the lower portion of the support frame 1 in a front-back manner, the number of the second limiting frames 111 in each set is 2, the second sliding block 112 is slidably arranged on the lower side of each second limiting frame 111, two fourth springs 114 are respectively connected between the top of each second sliding block 112 and the adjacent second limiting frames 111, the rotating wheel 113 is rotatably connected between the two adjacent second sliding blocks 112, and the rotating wheel 113 can facilitate moving the blood extraction auxiliary chair for children.

When this auxiliary chair of needs transport, can directly promote support frame 1 and remove, runner 113 can rotate this moment, it is more convenient to make this auxiliary chair remove under runner 113's effect, when drawing blood for children, just can make runner 113 drive second sliding block 112 upwards remove under children's weight effect, fourth spring 114 is compressed, thereby make support frame 1 can contact with ground, and then make this auxiliary chair unable remove because of runner 113 this moment, so can avoid making this auxiliary chair take place to remove because of runner 113 when drawing blood and lead to drawing blood inconvenient, it finishes the back to draw blood children to leave, alright make runner 113 and second 112 move down on second spacing 111 and reset under fourth spring 114's effect, and then make support frame 1 by the jack-up not contact with ground, alright push this auxiliary chair back the normal position through runner 113 is convenient again.

The technical principle of the embodiment of the present invention is described above in conjunction with the specific embodiments. The description is only intended to explain the principles of embodiments of the invention and should not be taken in any way as limiting the scope of the embodiments of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive step, and these embodiments will fall within the scope of the present invention.

Claims

1. A children blood extraction auxiliary chair comprises a support frame (1), a seat cushion (2), two first seat boards (21), a second seat board (22), a stretching belt (3), handrails (4) and a limiting ring (5), wherein the lower side of the left support frame (1) is rotatably provided with the first seat boards (21), the lower side of the right support frame (1) is rotatably provided with the second seat board (22), the tops of the first seat board (21) and the second seat board (22) are respectively provided with the seat cushion (2) which can make children more comfortable when sitting, the first seat board (21) and the second seat board (22) are rotatably connected, nine stretching belts (3) are uniformly connected between the upper sides of the support frame (1), the outer side of the middle part of the support frame (1) is provided with the handrails (4) for holding hands of children, the front side of each handrail (4) is provided with the limiting ring (5) which can limit the arms of children, the method is characterized in that: still including shrink mechanism (6), pushing mechanism (7) and blocking mechanism (8), be connected with between support frame (1) and first bedplate (21) and to make this child's blood draw supplementary chair carry out folding shrink mechanism (6), be equipped with pushing mechanism (7) on limit ring (5), thereby be connected with between pushing mechanism (7) and handrail (4) and block that can't watch blocking mechanism (8) of drawing blood to children's sight.

2. A child's blood drawing assistance chair as claimed in claim 1, wherein: contraction mechanism (6) all is equipped with first fixed block (64) including first dwang (61), second dwang (62), pulling handle (63) and first fixed block (64) in support frame (1) rear side lower part, and movable being equipped with first dwang (61) on first fixed block (64) in left side, movable being equipped with second dwang (62) on first fixed block (64) in right side, and the rotary type is connected with pulling handle (63) between second dwang (62) and first dwang (61), and pulling handle (63) are connected with first bedplate (21) rotary type.

3. A child's blood drawing assistance chair as claimed in claim 2, wherein: pushing mechanism (7) all is equipped with first dead lever (71) including first dead lever (71), handle (72), card frame (73) and first spring (74), the confinement ring (5) left and right sides all is equipped with first dead lever (71), thereby equal sliding connection has children to hold and avoids injured handle (72) when drawing blood between two first dead levers (71) of the left and right sides, the equal rotary type of left and right sides is equipped with card frame (73) on handle (72), all is connected with first spring (74) between handle (72) rear side and adjacent first dead lever (71).

4. A child's blood drawing assistance chair as claimed in claim 3, wherein: stop gear (8) are including first spacing (81), barrier plate (82), mount (83) and second fixed block (84), handrail (4) bottom front side all is equipped with first spacing (81), equal slidingtype is equipped with barrier plate (82) that can block children's sight after the rebound on first spacing (81), barrier plate (82) outside middle part all is equipped with mount (83), handle (72) inboard all is equipped with second fixed block (84), second fixed block (84) all contact with adjacent mount (83).

5. A child's blood drawing assistance chair as claimed in claim 4, wherein: still including clamping mechanism (9) that can press from both sides children's arm clamp, clamping mechanism (9) are including crane (91), first sliding block (92), press from both sides tight piece (93) and second spring (94), the equal bilateral symmetry slidingtype of restriction ring (5) rear side is equipped with first sliding block (92), the outside rear side of barrier plate (82) all is equipped with crane (91), crane (91) all with adjacent first sliding block (92) sliding connection, first sliding block (92) inboard all is slidingtype to be equipped with and to move the back to the inboard and can press from both sides tight piece (93) with children's arm clamp, press from both sides and all be connected with second spring (94) between tight piece (93) and adjacent first sliding block (92).

6. A child's blood drawing assistance chair as claimed in claim 5, wherein: still including can avoid children directly to take out protection machanism (10) of arm when drawing blood, protection machanism (10) all are equipped with second dead lever (102) including protection frame (101), second dead lever (102) and third spring (103), handrail (4) rear side, second dead lever (102) front side all is slided and is equipped with protection frame (101) that can support children's arm, all is connected with third spring (103) between protection frame (101) rear side and adjacent second dead lever (102) rear side.

7. A child's blood drawing assistance chair as claimed in claim 6, wherein: still including being convenient for promote this child's blood extraction auxiliary chair to carry out slide mechanism (11) that removes, slide mechanism (11) are including spacing (111) of second, second sliding block (112), runner (113) and fourth spring (114), the equal fore-and-aft symmetry in support frame (1) lower part is equipped with a set of spacing (111) of second, spacing (111) figure of every group second is 2, spacing (111) downside of second all is slidingtype and is equipped with second sliding block (112), all be connected with two fourth spring (114) between spacing (111) of second sliding block (112) top and adjacent second, equal rotary type is connected with runner (113) that can be convenient for make this child's blood extraction auxiliary chair move between two adjacent second sliding block (112).

8. A child's blood drawing assistance chair as claimed in claim 7, wherein: the pulling handle (63) is provided with an anti-slip sleeve.