CN109806024A - Automatic retracting type safety injector - Google Patents
Automatic retracting type safety injector Download PDFInfo
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- CN109806024A CN109806024A CN201910255499.3A CN201910255499A CN109806024A CN 109806024 A CN109806024 A CN 109806024A CN 201910255499 A CN201910255499 A CN 201910255499A CN 109806024 A CN109806024 A CN 109806024A
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- China
- Prior art keywords
- syringe
- cabinet
- type safety
- pinhead sleeve
- safety injector
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a kind of automatic retracting type safety injector, including syringe, syringe needle and piston, the syringe is fixed on inside syringe shell, and the syringe shell includes the pinhead sleeve on head and the cabinet of tail portion；The head surface of the pinhead sleeve is provided with a through-hole, and the pinhead sleeve passes through spring scalable setting at cabinet head；The injection device further includes a perfusion tube, connection inside described perfusion tube one end and syringe, liquid storage container outside other end connection, and the check valve to prevent liquid reflux to liquid storage container is provided in the perfusion tube；The injection device further includes having motor, and the motor is linked by gear and a rack gear, and one end of the rack gear is fixedly connected on the tail portion of piston.The purpose of the present invention is to provide a kind of structures to be simple and convenient to operate, injection efficiency is higher, the stronger automatic retracting type safety injector of safety.
Description
Technical field
The present invention relates to a kind of medical instruments, more specifically, it relates to a kind of automatic retracting type safety injector.
Background technique
In the research process such as preventive medicine, epidemic preventing working person generally uses traditional manual continuous syringe, although
It is easy to operate, cost is relatively low, but exists certain insufficient, if worker regrets fatigue in long-time operation, injection efficiency is caused to drop
It is low；And due to being manual operation, it is easy to cause injection speed non-constant, and syringe needle unprotect measure, be easy to work
Person and animal damage.The presence of these problems greatly reduces the working efficiency of current preventive medicine.
Instantly preventive medicine working day shows important, big according to current base, China preventive medicine researcher's routine work amount
The characteristics of, and in order to solve defect in the prior art, the injection device for proposing meter should have the function of electric injection, from
And the routine work fatigue strength of epidemic prevention station staff can be greatly lowered.Meanwhile it there is a need to ensure the note of injection device
Firing rate degree, to mitigate the work load of epidemic preventing working person under conditions of guaranteeing does not reduce whole work efficiency, further
Also the personal safety when person that can protect epidemic preventing working is using injection device.
Summary of the invention
It is simple and convenient to operate in view of the deficiencies of the prior art, the present invention intends to providing a kind of structure, injects
More efficient, the stronger automatic retracting type safety injector of safety.
To achieve the above object, the present invention provides the following technical scheme that a kind of automatic retracting type safety injector, packet
Syringe, syringe needle and piston are included, the syringe is fixed on inside syringe shell, and the syringe shell includes the syringe needle on head
The cabinet of set and tail portion；The head surface of the pinhead sleeve is provided with a through-hole, and the pinhead sleeve passes through spring in cabinet head
Scalable setting at portion；The injection device further includes a perfusion tube, connection inside described perfusion tube one end and syringe, the other end
Liquid storage container outside connection is provided with the check valve to prevent liquid reflux to liquid storage container in the perfusion tube；The note
Injection device further includes having motor, and the motor is linked by gear and a rack gear, and one end of the rack gear is fixedly connected on piston
Tail portion；The motor controls its forward and reverse by single chip control unit, and the outside of the syringe shell is provided with
Travel switch is inverted, the box house is provided with rotating forward travel switch；When the syringe needle is placed on pressing, tail portion is contracted to case
Internal portion and rotating forward travel switch contradict, and then open and rotate forward travel switch；The injection device further includes power supply, the power supply
It is electrically connected with motor, single chip control unit.
Further, the box house is provided with rack fixing seat, and the rack fixing seat surface offers rack rail
Road, rack gear sliding setting in rack-track.
Further, the perfusion tube is set as tee tube, is connected to liquid storage container, syringe and syringe needle, and described three
The syringe needle and syringe linkage section of siphunculus are set as hard conduit, and the check valve is set to the tube wall of tee tube connection liquid storage container
It is interior.
Further, the head of the syringe is exposed to the head of cabinet, and the head of the cabinet offers through slot, described
The tail portion of pinhead sleeve regracting box house or stretching box house at through slot.
Further, the pinhead sleeve and cabinet are additionally provided with the detent to prevent pinhead sleeve to be detached from cabinet in flexible place
Baffle.
Further, the outside motor is additionally provided with electric motor protecting shell.
Further, screw connects between the electric motor protecting shell and motor, spiral shell between the electric motor protecting shell and cabinet
It tethers and connects.
Further, the connecting hole on the electric motor protecting shell is set as oblate through-hole.
Further, the head of the pinhead sleeve is provided with salient point, and the side wall of pinhead sleeve is provided with opening.
Further, the box house is correspondingly arranged on the positioning limiting fixators such as syringe fixing seat, stroke switch mounting base.
The present invention compared with prior art for, the advantage is that: 1, simple structure, easy to operate, only need single stepping, after
Continuous step is voluntarily completed, and the working efficiency of user is improved.2, this injection device uses primary transmission, and transmission efficiency is high,
Device inner space is reduced, is injected more stable.3, pinhead sleeve can play the protective effect to user, allow entire injection process more
Add safety.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of automatic retracting type safety injector embodiment of the present invention；
Fig. 2 is a kind of structural schematic diagram of automatic retracting type safety injector embodiment part of the present invention；
Fig. 3 is a kind of automatic retracting type safety injector control unit circuit diagram of the present invention.
In figure: 1, cabinet；2, rack gear；3, gear；4, motor；5, electric motor protecting shell；6, syringe；7, travel switch is inverted；
8, travel switch is rotated forward；9, spring；10, pinhead sleeve；11, piston；12, perfusion tube；13, liquid storage container；14, single-chip microcontroller control is single
Member；15, rack-track；16, power supply；17, check valve；18, rack fixing seat；19, detent baffle；20, connecting hole.
Specific embodiment
A kind of automatic retracting type safety injector embodiment of the present invention is described further referring to figs. 1 to Fig. 3.
A kind of automatic retracting type safety injector as shown in Figure 1 to Figure 3, generallys include syringe shell and syringe
Syringe 6, syringe needle, piston 11, battery, single-chip microcontroller, motor 4, conducting wire, various transmission devices and the fixed locating part of interior of shell.
In the present embodiment, syringe shell includes the pinhead sleeve 10 and substantially in a rectangular parallelepiped shape for being set to head substantially and be in cylindrical shape
Cabinet 1.The head of pinhead sleeve 10 is set as mushroom, and top center offers aperture, to facilitate the flexible of syringe needle,
Its top is additionally provided with the salient point to increase friction while can also be coated with pigment at the top of it, facilitates label when injection；
The inside of pinhead sleeve 10 is set as hollow, and the through slot by being set to 1 head of cabinet realizes that 10 opposite case 1 of pinhead sleeve carries out
The effect of telescopic slide, so that the part tail portion of pinhead sleeve 10 is extended or retracts the inside of cabinet 1；Here in conjunction with pinhead sleeve 10
Shape and injection device overall structure shape further set through slot to the through slot of partial circle shape.Pinhead sleeve 10 is set
Setting purpose will not accidentally be pricked by syringe needle to protect operator in operation.It is internally provided with a spring 9 in pinhead sleeve 10,
One end of spring 9 contacts at the head of pinhead sleeve 10, and the other end is fixedly connected on the outside of the head of cabinet 1.In the present embodiment,
Spring 9 is to carry out inlay card by the way that 9 fixation hole of spring of one opened up on the outside of 1 head of cabinet depth 5mm is arranged in, to realize solid
Surely the effect connected forward ejects pinhead sleeve 10 toward far from 1 side of cabinet when spring 9 is in natural length.In order to guarantee
Pinhead sleeve 10 does not pushed away from cabinet 1 under the effect of 9 elastic force of spring, is additionally provided with here in pinhead sleeve 10 and cabinet 1 in flexible place
Detent baffle 19.
In the present embodiment, syringe 6 is fixed on the inside of cabinet 1 by 6 fixing seat of syringe.Case is stretched out in the front end of syringe 6
Body 1 is located in pinhead sleeve 10, is tightly connected between syringe 6 and syringe needle by a perfusion tube 12, perfusion tube 12 is arranged here
For tee tube, first connector and second connector of tee tube are connected with syringe 6 and syringe needle respectively, third connector
It is tightly connected with external liquid storage container 13, tee tube is set as hard conduit in syringe needle and 6 connecting pin of syringe；Further, exist
Tee tube connects in 13 1 sections of liquid storage container and is provided with a check valve 17.Setting in this way, so that syringe 6, syringe needle and storage
13 inside connection of liquid container.Here the purpose that check valve 17 is arranged is: when piston 11 is promoted, medical fluid can pass through needle
Head is injected to outside, without being back in liquid storage container 13 from tee tube, after injection, when piston 11 pulls back, again
The medical fluid " suction " in liquid storage container 13 can be entered into progress medical fluid supplement inside syringe 6 by negative pressure, do standard for injection next time
It is standby.In the present embodiment, liquid storage container 13 is fixedly connected on to the tail portion of cabinet 1, while being offered in the side wall of pinhead sleeve 10
One opening passed in and out convenient for tee tube.
It is internally provided with 11 driving mechanism of piston in cabinet 1, specifically 11 driving mechanism of piston here includes
Motor 4, rack gear 2, power supply 16, conducting wire, rotates forward travel switch 8, reversion travel switch 7 and single chip control unit at gear 3
14.It is specifically provided that and is fixedly connected with a spur rack 2 in the tail portion of piston 11, spur rack 2 passes through 18 phase of rack fixing seat
Rack-track 15 is offered to the inside for being fixed on cabinet 1, and on the surface of rack fixing seat 18, spur rack 2 can be in the rail
It is slided in road；Spur rack 2 is combined with a gear 3, and gear 3 is directly driven by motor 4, and motor 4 is fixedly mounted on cabinet 1
On.Therefore, the rotating forward or reversion that can control motor 4 realize driving piston 11 back and forth by the linkage of 3 spur rack 2 of gear
It moves back and forth.In the present embodiment, motor 4 rotates forward the movement for piston 11 being pushed to be injected, and the reversion of motor 4 retracts piston
11, the movement to supplement medical fluid is carried out in syringe 6.Further, we are set as reversion travel switch 7 to expose cabinet 1, will
It rotates forward travel switch 8 and is set to the inside of cabinet 1, and rotating forward the position to be formed and switch and be arranged is also by thinking.Work as needle
When headgear 10 is pressed, the tail portion of pinhead sleeve 10 is retracted inside cabinet 1, and retract reach certain stroke after can just touch
It touches to the position for rotating forward travel switch 8, opens and rotate forward travel switch 8, open motor 4, so that piston 11 pushes, inject medicine outward
Liquid；After injection, syringe needle is extracted, since 10 inner spring of pinhead sleeve, 9 elastic force acts on, pinhead sleeve 10 restores to original position, by needle
Head covering, the tail portion of pinhead sleeve 10 is far from travel switch 8 is rotated forward at this time, and motor 4, which rotates forward, to be stopped, and piston 11 stops pushing, thus
Stop action of injection；Operator need to only press the reversion travel switch 7 being exposed to outside cabinet 1 at this time, and motor 4 can be realized
Reversion pulls piston 11, realizes the movement that medical fluid is supplemented into syringe 6, is prepared for injection next time.Just changing one's profession here
Cheng Kaiguan 8 and reversion travel switch 7 are fixed on cabinet 1 by stroke switch mounting base.
In the present embodiment, it is contemplated that the pressure of gear 3, spur rack 2 and syringe 6, motor 4 need certain torsion,
Therefore in order to protect motor 4 and make entirety more stable, we are additionally provided with electric motor protecting shell outside motor 4, here motor
It is connected by screw to and is fixed between protective shell and motor 4, and be bolted and consolidated between electric motor protecting shell and cabinet 1
It is fixed, while electric motor protecting shell being increased and is used to further protect motor 4.In view of the thickness and 3 straight-tooth of gear of electric motor protecting shell
The position that is engaged of item 2 needs the very fine fixed height and depth for strictly controlling electric motor protecting shell, therefore
Connecting hole 20 on electric motor protecting shell is set as oblate through-hole by us, to increase the adjustability of cooperation.
And in the specific implementation process, we have selected the motor 4 of following parameter:
During motor 4 and electric motor protecting shell assemble, fixed using the screw of 6 pieces of Φ 3, electric motor protecting shell and case
Bolt between body 1 using 3 pieces of Φ 6 connects.
For being specifically configured to for gear 3 and spur rack 2: 2 modulus of rack gear is 1, wide 10mm, high 10mm；3 modulus of gear is
1, the number of teeth 20.
Calculating for thrust, being measured by weight beam and pushing the thrust of syringe 6 is about 50N, and gear 3 is transmitted to tooth
Thrust on item 2I.e. motor 4 can push syringe 6 to be injected.
Circuit part uses 4 control module of motor, and there are two the positive and negative rotations of normally closed travel switch control motor 4 (i.e. just
Turn travel switch 8 and reversion travel switch 7), it is separately mounted with that revolving speed is adjusted in speed regulation device, further strengthens to motor 4
Control.
The above is a preferred embodiment of the present invention, does not depart from the present invention to those skilled in the art
Under the premise of principle, several variations and modifications can also be made, these also should be regarded as the protection scope of invention.
Claims (10)
1. a kind of automatic retracting type safety injector, including syringe (6), syringe needle and piston (11), it is characterised in that:
The syringe (6) is fixed on inside syringe shell, and the syringe shell includes pinhead sleeve (10) and the tail portion on head
Cabinet (1)；
The head surface of the pinhead sleeve (10) is provided with a through-hole, and the pinhead sleeve (10) passes through spring (9) in cabinet (1)
Scalable setting at head；
The injection device further includes a perfusion tube (12), described perfusion tube (12) one end and syringe (6) internal connection, the other end
Liquid storage container (13) outside connection, the interior list being provided with to prevent liquid reflux to liquid storage container (13) of the perfusion tube (12)
To valve (17)；
The injection device further includes having motor (4), and the motor (4) is linked by gear (3) and a rack gear (2), the tooth
One end of item (2) is fixedly connected on the tail portion of piston (11)；
The motor (4) controls its forward and reverse by single chip control unit (14), and the outside of the syringe shell is set
It is equipped with reversion travel switch (7), the cabinet (1), which is internally provided with, rotates forward travel switch (8)；
When pressing, tail portion is contracted to cabinet (1) inside and contradicts with travel switch (8) are rotated forward the pinhead sleeve (10), then
It opens and rotates forward travel switch (8)；
The injection device further includes power supply (16), and the power supply (16) is electrically connected with motor (4), single chip control unit (14)
It connects.
2. automatic retracting type safety injector according to claim 1, it is characterised in that:
The cabinet (1) is internally provided with rack fixing seat (18), and rack fixing seat (18) surface offers rack-track
(15), the rack gear (2) sliding setting in rack-track (15).
3. automatic retracting type safety injector according to claim 1, it is characterised in that:
The perfusion tube (12) is set as tee tube, is connected to liquid storage container (13), syringe (6) and syringe needle, the threeway
The syringe needle and syringe (6) linkage section of pipe are set as hard conduit, and the check valve (17) is set to tee tube connection liquid storage container
(13) in tube wall.
4. automatic retracting type safety injector according to claim 1, it is characterised in that: the head of the syringe (6)
It is exposed to the head of cabinet (1), the head of the cabinet (1) offers through slot, and the tail portion of the pinhead sleeve (10) is at through slot
Regracting cabinet (1) is internal or stretches out cabinet (1) inside.
5. automatic retracting type safety injector according to claim 4, it is characterised in that: the pinhead sleeve (10) and case
Body (1) is additionally provided with the detent baffle (19) to prevent pinhead sleeve (10) to be detached from cabinet (1) in flexible place.
6. automatic retracting type safety injector according to claim 1, it is characterised in that: outside the motor (4) also
It is provided with electric motor protecting shell (5).
7. automatic retracting type safety injector according to claim 6, it is characterised in that: the electric motor protecting shell (5)
Screw is connect between motor (4), is bolted between the electric motor protecting shell (5) and cabinet (1).
8. automatic retracting type safety injector according to claim 7, it is characterised in that: the electric motor protecting shell (5)
On connecting hole (20) be set as oblate through-hole.
9. automatic retracting type safety injector according to claim 1, it is characterised in that: the head of the pinhead sleeve (10)
Portion is provided with salient point, and the side wall of pinhead sleeve (10) is provided with opening.
10. automatic retracting type safety injector according to claim 1, it is characterised in that: the cabinet (1) is internal right
The positioning limiting fixators such as syringe fixing seat, stroke switch mounting base should be provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910255499.3A CN109806024A (en) | 2019-04-01 | 2019-04-01 | Automatic retracting type safety injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910255499.3A CN109806024A (en) | 2019-04-01 | 2019-04-01 | Automatic retracting type safety injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109806024A true CN109806024A (en) | 2019-05-28 |
Family
ID=66611148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910255499.3A Withdrawn CN109806024A (en) | 2019-04-01 | 2019-04-01 | Automatic retracting type safety injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109806024A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113417485A (en) * | 2021-06-30 | 2021-09-21 | 浙江工业职业技术学院 | Building support column adds muscle device |
-
2019
- 2019-04-01 CN CN201910255499.3A patent/CN109806024A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113417485A (en) * | 2021-06-30 | 2021-09-21 | 浙江工业职业技术学院 | Building support column adds muscle device |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190528 |
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| WW01 | Invention patent application withdrawn after publication |