CN206214355U - Blood sampling chair - Google Patents
Blood sampling chair Download PDFInfo
- Publication number
- CN206214355U CN206214355U CN201620801542.3U CN201620801542U CN206214355U CN 206214355 U CN206214355 U CN 206214355U CN 201620801542 U CN201620801542 U CN 201620801542U CN 206214355 U CN206214355 U CN 206214355U
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- connecting rod
- ratchet
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- hinged
- portions
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- 238000010241 blood sampling Methods 0.000 title abstract description 9
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 125000006850 spacer group Chemical group 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 230000033001 locomotion Effects 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims 1
- 210000002414 leg Anatomy 0.000 description 26
- 239000008280 blood Substances 0.000 description 15
- 210000004369 blood Anatomy 0.000 description 15
- 238000000034 method Methods 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000747 cardiac effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 208000002173 dizziness Diseases 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
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Abstract
The utility model belongs to the field of medical equipment, concretely relates to blood sampling chair. The technical problem of poor comfort of the blood sampling chair in the prior art is solved. Is particularly suitable for being adopted by blood sampling mechanisms facing people with different shapes. The utility model discloses a blood sampling chair makes through the regulative mode who changes movable part such as armrest the utility model discloses a change that the handrail of blood sampling chair not only can follow the back still keeps unchangeable with the relative angle of cushion, guarantees the travelling comfort of user's hand position when the seat is adjusted, can also let the handrail change the angle of horizontal plane or vertical face alone, and the person of facilitating the use sits down in the side of blood sampling chair, and the person of facilitating the use can comfortable use under different situations.
Description
Technical field
The utility model belongs to medical instruments field, and in particular to a kind of blood-drawing chair.
Background technology
The mechanism such as Hospitals at Present and blood station is when being taken a blood sample, there is provided the mainly function of being used to blood donor is more simple
Single chair or stool, blood donor can only be donated blood using sitting posture.When being donated blood with sitting posture, blood donor's both feet with hanging down, are unfavorable for offering
The blood backflow of blood person leg, therefore cardiac load is larger during donating blood, sitting posture is unfavorable for blood donor's physical relaxation in addition, offers
Easily occur the symptoms such as nervous, dizziness during blood, be unfavorable for that blood donor's is healthy and safe.
Other similar blood-drawing chair equipment equally exist some defects, it is difficult to be that blood donor or medical personnel provide comfortably
Easily use, such as the structure of following similar devices and the problem of presence：
A kind of blood-drawing chair for example shown in Fig. 5, both sides use parallel four-bar linkage so that backrest is helped in rotation process
Hand keeps the hand position to adapt to user parallel with cushion to change, but the parallel four-bar linkage of both sides is used with cushion
Fixation is hinged, user cannot sit down or stand from side.It is limited to height of seat parameter simultaneously, for the ease of user from front
Up and down, leg pad length is shortened to increase the regulation angle of leg pad, and such blood-drawing chair is generally not equipped with pedal, causes to make
Leg and foot position are uncomfortable when user sits down, and influence overall comfort.Also there is a problem of complex structure, make difficult.
And a kind of blood-drawing chair as shown in Figure 6, its handrail lower end connection support bar, support bar is fixed on cushion both sides.Adopt
With the backrest of this structure in rotation process handrail to be fixed on original place motionless, then user is when backrest is rotated, and arm is relative
Handrail produces the passive displacement of horizontal direction and the stress of vertical direction, influences comfort level.And the handrail order that both sides are fixed makes
User cannot sit down and stand from both sides.Blood-drawing chair for the structure can also add handle adjusting, but regulation process is suitable
Inconvenience.Handrail is fixed on support bar by the connected mode of universal joint, universal joint by the way of bolt is tightened by handrail with
The relative position of support bar is fixed, and needs to unscrew and tighten bolt when this kind of regulative mode is adjusted every time, troublesome poeration.
The leg pad of a kind of blood-drawing chair as shown in Figure 7 again, one end and the foot pad support of its pedal use pivot bush unit mode,
Allow that pedal is moved along foot pad holder orientation, but pedal with the mode of interfixing of foot pad support is twisted using bolt
Tight mode, this requires that operating personnel must be close to and then manually operated, and practical operation is extremely not convenient.
Utility model content
Therefore, the technology that technical problem to be solved in the utility model is the blood-drawing chair comfortableness difference of prior art is asked
Topic, so as to propose a kind of blood-drawing chair.
In order to solve the above technical problems, a kind of blood-drawing chair of the present utility model, including base support, portions support, backrest
Support and leg support frame, the portions branch are placed on top and the interconnection of base support, and the back bracket is articulated and connected
In one end of the portions support, the leg support frame is hingedly connected to the other end of the portions support, it is characterised in that institute
The center for stating back bracket is provided with one group of chair back quadric chain being vertically arranged, and the chair back quadric chain includes upper company
Bar, middle connecting rod, lower link and handrail rotating shaft；The upper connecting rod, middle connecting rod and lower link are hinged successively, the end of the lower link
One end with the portions support is fixedly connected；The handrail rotating shaft is fixed on the top of the upper connecting rod, the handrail rotating shaft
The plane of movement of the and chair back quadric chain parallel with the top of upper connecting rod is orthogonal and the back bracket
Plane is parallel；The handrail rotating shaft is connected by bearing or axle sleeve structure with back bracket；The two ends of the handrail rotating shaft connect
Handrail is connected to, the handrail is connected with handrail rotating shaft by activity adjustment part.
Preferably, the activity adjustment part is ratchet livelock mechanism, and the handrail passes through ratchet livelock with handrail rotating shaft
Mechanism connects, and the ratchet livelock mechanism includes ratchet, plectrum set, plectrum set spacer pin, ratchet and spring, the ratchet, dials
Piece set, ratchet are coaxial successively from inside to outside to be fitted together, and the plectrum set sidepiece offers all ratchet radians with ratchet
The stopper slot of equal arc, plectrum set spacer pin is assigned into the stopper slot and is hinged with ratchet, the ratchet with
The ratchet engaging, the spring is located at the outside of ratchet and compresses ratchet, and the ratchet is fixed on the end of the handrail rotating shaft
Portion, the ratchet is hinged with the handrail.Ratchet livelock mechanism can facilitate handrail that the angle of handrail is adjusted in vertical plane, with
The body requirement of different users is adapted to, and also allows handrail to open fully up, convenient use person sits down in blood-drawing chair side.
Preferably, the end of the leg support frame is provided with pedal, and the both sides of the pedal are disposed with fulcrum, the fulcrum
It is hinged with the leg support frame, the pedal is equipped with adjustable-length connecting rod one, one end of the adjustable-length connecting rod one and institute
The bottom for stating pedal is hinged, and the other end and the back side of the leg support frame of the adjustable-length connecting rod one are hinged.Said structure
Allowing the angle between pedal and leg support frame can be adjusted according to the physical condition of user, improve comfort.
Preferably, based on same principle, angle between leg support frame and portions support, by between support and portions support
Angle and the angle between base support and the portions support can be regulation：
Preferably, adjustable-length connecting rod two, the adjustable length are configured between the leg support frame and the portions support
The one end for spending connecting rod two is hinged with the bottom surface of the portions support, the other end of the adjustable-length connecting rod two and the leg branch
The back side of frame is hinged.
Preferably, it is configured with backrest regulating mechanism between the back bracket and portions support；The backrest regulating mechanism
Including back-rest connecting rod and portions adjustable-length connecting rod；The back-rest connecting rod mutually cuts with scissors with the portions adjustable-length connecting rod
Connect；The back-rest connecting rod, back bracket and portions support three are hinged；The portions adjustable-length connecting rod and the seat
Portion's cradle bottom surface is hinged.
It is more highly preferred to, adjustable-length connecting rod three is configured between the base support and the portions support, it is described adjustable
One end of length link three is hinged with the base support, the other end of the adjustable-length connecting rod three and the base support bottom
Face is hinged.
Above-mentioned technical proposal of the present utility model has advantages below, a kind of blood sampling of the present utility model compared to existing technology
The handrail of chair can not only follow the change of backrest still to keep constant with the relative angle of cushion, it is ensured that seat is used when adjusting
The comfortableness of person's hand position, can also allow handrail individually to change the angle of horizontal plane or vertical plane, and convenient use person is in blood sampling
The side of chair is sat down, and is easy to user comfortably to use in different situations.
Brief description of the drawings
In order that content of the present utility model is more likely to be clearly understood, below according to specific implementation of the present utility model
Example and with reference to accompanying drawing, the utility model is described in further detail, wherein
Fig. 1 is a kind of simplified diagram of blood-drawing chair structural principle of the utility model one embodiment；
Fig. 2 is a kind of ratchet livelock mechanism structure principle schematic of blood-drawing chair of the utility model one embodiment；
Fig. 3 is a kind of principle schematic diagram. of the pedal of blood-drawing chair of the utility model one embodiment；
Fig. 4 is that a kind of blood-drawing chair of the utility model one embodiment is one kind of the utility model one embodiment is adopted
The schematic diagram of blood structure of chair principle；
Fig. 5~7 are background technology figures.
Reference is expressed as in figure：1- base supports；2- adjustable-lengths connecting rod three；3- lower links；4- back-rest connecting rods；
Connecting rod in 5-；6- upper connecting rods；7- handrail rotating shafts；8- back brackets；9- handrails；10- portions supports；11- portions adjustable-length connects
Bar；12- adjustable-lengths connecting rod two；13- leg support frames；14- adjustable-lengths connecting rod one；15- pedals；16- ratchets；17- plectrum sets；
18- plectrums cover spacer pin；19- ratchets；20- springs.
Specific embodiment
As shown in figures 1-4, a kind of blood-drawing chair, including base support 1, portions support 10, back bracket 8 and leg branch
Frame 13, portions support 10 is placed in the top of base support 1 and interconnection, and back bracket 8 is hingedly connected to portions support 10
One end, leg support frame 13 is hingedly connected to the other end of portions support 10, and the center of back bracket 8 is provided with one group and is vertically arranged
Chair back quadric chain, chair back quadric chain include upper connecting rod 6, middle connecting rod 5 and lower link 3, upper connecting rod 6, the and of middle connecting rod 5
Lower link 3 is hinged successively, and the end of lower link 3 is fixedly connected with one end of portions support 10, and the top of upper connecting rod 6 is fixedly connected
There is a horizontally disposed handrail rotating shaft vertical with chair back parallel motion plane and parallel with the plane of back bracket 8
7, handrail rotating shaft 7 is connected by bearing or axle sleeve structure with back bracket 8, and the two ends of handrail rotating shaft 7 are respectively connected with handrail 9, help
Hand 9 is that a kind of ratchet livelock mechanism is connected by activity adjustment part with handrail rotating shaft 7.
Ratchet livelock mechanism includes ratchet 16, plectrum set 17, plectrum set spacer pin 18, ratchet 19 and spring 20, ratchet 16,
Plectrum set 17, ratchet 19 is coaxial successively from inside to outside fits together, and plectrum covers 17 sidepieces and offers all spine with ratchet 16
The stopper slot of the equal arc of sector degree, plectrum set spacer pin 18 is assigned into stopper slot and is hinged with ratchet 16, ratchet 19 with
Ratchet 16 engages, and spring 20 is located at the outside of ratchet 19 and compresses ratchet 19, and ratchet 16 is fixed on the end of handrail rotating shaft 7, spine
Pawl 19 is hinged with handrail 9.
The end of leg support frame 13 is provided with pedal 15, and the both sides of pedal 15 are disposed with fulcrum, fulcrum and leg support frame 13
Be hinged, pedal 15 equipped with adjustable-length connecting rod 1, wherein, adjustable-length connecting rod 1 is a kind of adjustable solar term telescopic spring
Connecting rod, with controlling switch, one end and the bottom of pedal 15 of adjustable-length connecting rod 1 are hinged, adjustable-length connecting rod 1
The other end is hinged with the back side of leg support frame 13.
Adjustable-length connecting rod 2 12 is configured between leg support frame 13 and portions support 10, adjustable-length connecting rod 2 12 is one
Kind adjustable solar term telescopic spring connecting rod, with controlling switch, one end of adjustable-length connecting rod 2 12 and the bottom surface of portions support 10
It is hinged, the other end and the back side of leg support frame 13 of adjustable-length connecting rod 2 12 are hinged.
Backrest regulating mechanism is configured between back bracket 8 and portions support 10, backrest regulating mechanism connects including back-rest
Bar 4 and portions adjustable-length connecting rod 11, portions adjustable-length connecting rod 11 are a kind of adjustable solar term telescopic spring connecting rods, with control
Switch, back-rest connecting rod 4 is hinged with portions adjustable-length connecting rod 11；
The back-rest connecting rod 4, back bracket 8 are mutually permanently connected, the portions support 10 be mutually permanently connected
The back-rest connecting rod 4, back bracket 8 are hinged；
Adjustable-length connecting rod 32 is configured between base support 1 and portions support 10, adjustable-length connecting rod 32 is also a kind of
Adjustable solar term telescopic spring connecting rod, with controlling switch, one end and the base support 1 of adjustable-length connecting rod 32 are hinged, adjustable length
The other end for spending connecting rod 32 is hinged with the bottom surface of base support 1.
Blood-drawing chair is as mode：
First, ratchet 16 can be rotated coaxially each other with plectrum set 17 and the three of ratchet 19, plectrum set spacer pin 18 and spine
Wheel 16 is mutually fixed, and ratchet 19 is fixedly connected with handrail 9, and spring 20 press against ratchet 19.When handrail 9 is lifted up, ratchet 16 is not
Dynamic, handrail 9 is rotated up with pawl 19, and because spring 20 compresses ratchet 19, ratchet 19 can be from one of them in ratchet 16
Ratchet is moved in a upward ratchet, and is blocked.And ratchet 19 can dial up plectrum set 17 and rotate.Now go off the hand grip,
Ratchet 19 blocks ratchet 16, and handrail 9 is fixed.
2nd, when handrail 9 is continued up turns to peak：Ratchet 19 is rotated coaxially with handrail 9, and ratchet 16 is fixed；Dial
Piece set 17 by plectrum set spacer pin 18 block and with the geo-stationary of ratchet 16；Now spring 20 press against ratchet 19 follow handrail 9 after
After continuous and ratchet 16, plectrum set 17 is relatively rotated, therefore ratchet 19 is separated with ratchet 16, ratchet 19 is with friction with plectrum set 17
Contact.Handrail 9 is now put down, then ratchet 19 press against plectrum set 17 makes it be rotated relatively downward with ratchet 16, is limited until plectrum covers
After position pin 18 blocks plectrum set 17, plectrum set 17 is stopped operating and ratchet 19 is separated with plectrum set 17 and snaps in the ratchet of ratchet 16
In, now handrail 9 is fixed with ratchet 16, completes a circulation.
3rd, the blood-drawing chair of the present embodiment is the mode bit that pedal 15 is controlled using the gas telescopic spring connecting rod of bracing wire control
Put, there is simple structure, the effect of easily regulation.Its schematic diagram such as Fig. 3, (is drawn by leg support frame 13, adjustable-length connecting rod 1
The gas telescopic spring connecting rod of line traffic control), the part of pedal 15,3 constitutes.Its working method is：
After user is sitting on blood-drawing chair, leg is placed naturally, if now pedal 15 does not fit to user foot,
The handle being arranged near blood-drawing chair is then pulled by user, the controlling switch of handle connection adjustable-length connecting rod 1 is pulled
Then adjustable-length connecting rod 1 opens elastic elongation to handle, and now adjustable-length connecting rod 1 has one and less pushes dynamic pin
Pedal the position for moving to user's sole.Handle is unclamped, adjustable-length connecting rod 1 is pinned, now adjustable-length connecting rod one
14 are in the lock state, and can bear larger to pedal power；
Similarly, if user is sat on blood-drawing chair, the position of pedal 15 causes that leg is gone down on one's knees cannot be laid flat, then user can
To pull open the handle being located near seat, pin firmly steps on pedal 15 slightly, and pedal is adjusted into 15 whole to after correct position, release handles
Hand.Length link 1 is now adjusted to be in the lock state, pedal 15 can bear larger to pedal power.
Therefore, portions adjustable-length connecting rod 11, adjustable-length connecting rod 2 12, adjustable-length connecting rod three based on similar structure
2 other attitudes that equally can be used for adjusting blood-drawing chair, they are respectively used to adjust attitude, the leg support frame of back bracket 8
13 attitude and the attitude (i.e. the overall attitude of seat) of portions support 10.
Obviously, above-described embodiment is only intended to clearly illustrate example, and not to the restriction of implementation method.It is right
For those of ordinary skill in the art, can also make on the basis of the above description other multi-forms change or
Change.There is no need and unable to be exhaustive to all of implementation method.And the obvious change thus extended out or
Among the protection domain that variation is created still in the utility model.
Claims (6)
1. a kind of blood-drawing chair, including base support, portions support, back bracket and leg support frame, the portions branch are placed on bottom
The top of seat support and interconnection, the back bracket are hingedly connected to one end of the portions support, the leg support frame
It is hingedly connected to the other end of the portions support, it is characterised in that the center of the back bracket is provided with one group of vertical cloth
The chair back quadric chain put, the chair back quadric chain includes upper connecting rod, middle connecting rod, lower link and handrail rotating shaft；It is described
Upper connecting rod, middle connecting rod and lower link are hinged successively, and the end of the lower link is fixedly connected with one end of the portions support；Institute
State the top that handrail rotating shaft is fixed on the upper connecting rod, handrail rotating shaft is parallel with the top of upper connecting rod and the chair back four
The plane of movement of linkage is orthogonal parallel with the plane of the back bracket；The handrail rotating shaft by bearing or
Axle sleeve structure is connected with back bracket；The two ends of the handrail rotating shaft are respectively connected with handrail, and the handrail passes through with handrail rotating shaft
Activity adjustment part is connected.
2. blood-drawing chair according to claim 1, it is characterised in that the activity adjustment part is ratchet livelock mechanism, institute
State handrail to be connected by ratchet livelock mechanism with handrail rotating shaft, the ratchet livelock mechanism includes ratchet, plectrum set, plectrum set limit
Position pin, ratchet and spring, the ratchet, plectrum set, ratchet are coaxial successively from inside to outside to be fitted together, and the plectrum covers sidepiece
The stopper slot of the arc equal with all ratchet radians of ratchet is offered, the plectrum set spacer pin assigns into the stopper slot
Interior and be hinged with ratchet, the ratchet engages with the ratchet, and the spring is located at the outside of ratchet and compresses ratchet, the spine
Wheel is fixed on the end of the handrail rotating shaft, and the ratchet is hinged with the handrail.
3. blood-drawing chair according to claim 1, it is characterised in that the end of the leg support frame is provided with pedal, described
The both sides of pedal are disposed with fulcrum, and the fulcrum is hinged with the leg support frame, the pedal equipped with adjustable-length connecting rod one,
One end of the adjustable-length connecting rod one is hinged with the bottom of the pedal, the other end of the adjustable-length connecting rod one with it is described
The back side of leg support frame is hinged.
4. blood-drawing chair according to claim 3, it is characterised in that configured between the leg support frame and the portions support
There is adjustable-length connecting rod two, one end of the adjustable-length connecting rod two is hinged with the bottom surface of the portions support, the adjustable length
The other end for spending connecting rod two is hinged with the back side of the leg support frame.
5. blood-drawing chair according to claim 1, it is characterised in that be configured between the back bracket and portions support and leaned on
Back of the body governor motion；
The backrest regulating mechanism includes back-rest connecting rod and portions adjustable-length connecting rod；The back-rest connecting rod and the portions
Adjustable-length connecting rod is hinged；
The back-rest connecting rod, back bracket are mutually permanently connected, the portions support and the backrest being mutually permanently connected
Portion's connecting rod, back bracket are hinged；
The portions adjustable-length connecting rod is hinged with the portions cradle bottom surface.
6. blood-drawing chair according to claim 1, it is characterised in that be configured between the base support and the portions support
Adjustable-length connecting rod three, one end and the base support of the adjustable-length connecting rod three are hinged, the adjustable-length connecting rod three
The other end be hinged with the base support bottom surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620801542.3U CN206214355U (en) | 2016-07-27 | 2016-07-27 | Blood sampling chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620801542.3U CN206214355U (en) | 2016-07-27 | 2016-07-27 | Blood sampling chair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206214355U true CN206214355U (en) | 2017-06-06 |
Family
ID=58779928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620801542.3U Active CN206214355U (en) | 2016-07-27 | 2016-07-27 | Blood sampling chair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206214355U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107348729A (en) * | 2017-07-25 | 2017-11-17 | 苏州君之宏电器科技有限公司 | Massage armchair |
| CN109998305A (en) * | 2019-01-29 | 2019-07-12 | 上海硅莱医疗器械有限公司 | A kind of pull-alongs chaise longue |
-
2016
- 2016-07-27 CN CN201620801542.3U patent/CN206214355U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107348729A (en) * | 2017-07-25 | 2017-11-17 | 苏州君之宏电器科技有限公司 | Massage armchair |
| CN107348729B (en) * | 2017-07-25 | 2024-03-29 | 苏州君之宏电器科技有限公司 | Massaging chair |
| CN109998305A (en) * | 2019-01-29 | 2019-07-12 | 上海硅莱医疗器械有限公司 | A kind of pull-alongs chaise longue |
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