CN207983995U - A kind of acid and alkali-resistance chitosan 3D printing Coaxial nozzle - Google Patents
A kind of acid and alkali-resistance chitosan 3D printing Coaxial nozzle Download PDFInfo
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- CN207983995U CN207983995U CN201820392288.5U CN201820392288U CN207983995U CN 207983995 U CN207983995 U CN 207983995U CN 201820392288 U CN201820392288 U CN 201820392288U CN 207983995 U CN207983995 U CN 207983995U
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- needle
- syringe needle
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- way pipe
- chitosan
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Abstract
The utility model discloses a kind of acid and alkali-resistance chitosan 3D printing Coaxial nozzles,Including syringe needle outside three-way pipe,Branch pipe,Interior syringe needle,Interior syringe needle locking cap and rubber tube,The outer syringe needle of three-way pipe,Branch pipe and interior syringe needle are all made of that polypropylene is made to be formed,Interior syringe needle includes integrally formed needle section and bottom end needle tubing portion,The top of needle section is provided with an insert opening,Needle tubing portion is internally provided with the interior pin hole for being connected to insert opening,Include needle accommodating chamber and an outer pin hole in one in the outer syringe needle of three-way pipe,Branch pipe normal thread is rotatably connected in the lateral wall of the outer syringe needle of three-way pipe,Interior syringe needle is located at the outer needle wall of three-way pipe,The top of interior syringe needle locking cap is provided with a perforation,Rubber tube, which passes through, to be perforated and is intercalated in insert opening,The utility model realization is directly mixed with aquagel to be shaped for 3D printing and can efficiently carry out the mixing of acid coagulating bath liquid and alkaline chitosan liquid and generate evolution reaction with strong acid and strong base solution.
Description
Technical field
The utility model is related to 3D printing technique fields, and in particular to a kind of acid and alkali-resistance chitosan 3D printing Coaxial nozzle.
Background technology
With the rise of 3D printing technique, using sodium alginate, chitosan etc. can fast reaction crosslinking curing hydrogel
As the carrier material of drug and cell, the certain geometry of direct forming in a manner of direct write, organizational project, pharmacy and
The fields such as clinical medicine have good application prospect.Artificial blood vessel is prepared using the method and blood vessel network structure has become group
The research of weaver's journey and biological manufacturing field and apply hot spot.
Chitosan is that chitin takes off second phthalidyl product, is important marine biomass resource, the shell for the shrimp crab that can have drawn from,
Resource is extremely abundant.Existing hydroxyl in chitosan molecule chain, and have amino, various suitable acylations, esterification, etherificate can be passed through
And the reactions such as graft copolymerization and crosslinking assign chitosan desired property.Chitosan has good biocompatibility, biology
Degradability and anti-inflammatory effect are being applied to timbering material, pharmaceutical carrier, wound healing etc..The profit of chitosan so far
Expenditure is still relatively low, and main cause is：Have strong hydrogen bond action between chitosan molecule, melting temperature decomposition temperature it
On, it cannot be molded by the processing method of traditional melting extrusion and injection molding, and not soluble in water and common solvent.Conventional at present
Aquagel, film and fiber are mostly to carry out neutralization evolution reaction by the acid solution to chitosan to be made.
Now nozzle traditional at present is generally single spraying header structure, cannot be satisfied the requirement of mixed chemical precipitating, and tradition
Nozzle mostly use that stainless steel tube is made forms, can not adapt to work under the conditions of acid solution.
Utility model content
(1) technical problems to be solved
In order to overcome the shortage of prior art, it is proposed that a kind of acid and alkali-resistance chitosan 3D printing Coaxial nozzle may be implemented to use
Strong acid and strong base solution is directly mixed with aquagel to be used for 3D printing forming and can efficiently carry out acid solidifying
Gu the mixing of bath foam body and alkaline chitosan liquid simultaneously generates evolution reaction.
(2) technical solution
The utility model is achieved through the following technical solutions：The utility model proposes a kind of acid and alkali-resistance chitosan 3D printings
Syringe needle, branch pipe, interior syringe needle, interior syringe needle locking cap and rubber tube outside Coaxial nozzle, including three-way pipe, the outer needle of the three-way pipe
Head, branch pipe and interior syringe needle are all made of that polypropylene is made to be formed, and the interior syringe needle includes integrally formed needle section and bottom end
The bottom end in needle tubing portion, the needle section is set as the taper being connect with needle tubing portion rounding off, and the top of needle section is provided with one
Insert opening, needle tubing portion is internally provided with the interior pin hole for being connected to insert opening, includes needle accommodating chamber in one in the outer syringe needle of three-way pipe
And one be connected to and be through to its bottom end with interior needle accommodating chamber outer pin hole, the needle section matches with interior needle accommodating chamber shape,
The branch pipe normal thread is rotatably connected in the lateral wall of the outer syringe needle of three-way pipe and branch pipe internal cavity is connected to outer pin hole, the interior syringe needle
The needle wall outside three-way pipe, the needle section are located in interior needle accommodating chamber, and the needle tubing portion is located in outer pin hole and the two
Between there are gap, the interior syringe needle locking cap is rotatably connected in the outer needle tip of three-way pipe and internally needle tip is formed and squeezed, interior
The top of syringe needle locking cap is provided with a perforation, and the rubber tube, which passes through, to be perforated and be intercalated in insert opening.
Further, the top of the outer syringe needle of the three-way pipe is provided with external screw teeth, the interior syringe needle locking cap bottom setting
Having can be with syringe needle screw thread is screwed on outside three-way pipe internal screw thread.
Further, the side of the outer syringe needle of the three-way pipe is provided with an internal thread hole that can be threadedly coupled with branch pipe.
Further, the top of the needle section stretches out in the outer needle tip plane of three-way pipe.
(3) advantageous effect
The utility model compared with the existing technology, has the advantages that：
A kind of acid and alkali-resistance chitosan 3D printing Coaxial nozzle that the utility model is mentioned, uses and is resistant to strong acid and strong base
Polypropylene it is made form, the mixing of acid coagulating bath liquid and alkaline chitosan liquid may be implemented and generate evolution reaction,
To which aquagel be made.
Description of the drawings
Fig. 1 is the utility model structure diagram.
The outer syringe needle of 1- three-way pipes；2- branch pipes；Syringe needle in 3-；Syringe needle locking cap in 4-；5- rubber tubes；Needle accommodating chamber in 11-；
The outer pin holes of 12-；31- needle sections；The bottom ends 32- needle tubing portion；33- insert openings；Pin hole in 34-；41- perforates.
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
A kind of acid and alkali-resistance chitosan 3D printing Coaxial nozzle as shown in Figure 1, including it is syringe needle 1 outside three-way pipe, branch pipe 2, interior
Syringe needle 3, interior syringe needle locking cap 4 and rubber tube 5, the outer syringe needle 1 of the three-way pipe, branch pipe 2 and interior syringe needle 3 are all made of polypropylene
Made to form, the interior syringe needle 3 includes integrally formed needle section 31 and bottom end needle tubing portion 32, the bottom end of the needle section 31
It is set as the taper being connect with 32 rounding off of needle tubing portion, the top of needle section 31 is provided with an insert opening 33, needle tubing portion 32
Be internally provided with the interior pin hole 34 for being connected to insert opening 33, include in the outer syringe needle of three-way pipe 1 in one needle accommodating chamber 11 and one with
The interior connection of needle accommodating chamber 11 and the outer pin hole 12 for being through to its bottom end, the needle section 31 are matched with interior 11 shape of needle accommodating chamber,
2 normal thread of the branch pipe is rotatably connected in the lateral wall of syringe needle 1 outside three-way pipe and 2 internal cavity of branch pipe is connected to outer pin hole 12, described
Interior syringe needle 3 is located at outside three-way pipe inside syringe needle 1, and the needle section 31 is located in interior needle accommodating chamber 11, and the needle tubing portion 32 is located at
There is in outer pin hole 12 and between the two gap, the interior syringe needle locking cap 4 is rotatably connected in outer 1 top of syringe needle of three-way pipe and internal needle
First 3 top, which is formed, to be squeezed, and the top of interior syringe needle locking cap 4 is provided with a perforation 41, and the rubber tube 5 passes through perforation 41 and intercalation
In in insert opening 33.
Wherein, the top of syringe needle 1 is provided with external screw teeth outside the three-way pipe, and interior 4 bottom of syringe needle locking cap is provided with
The internal screw thread that can be screwed on 1 screw thread of syringe needle outside three-way pipe；The side of the outer syringe needle of the three-way pipe 1 is provided with one can be with branch pipe
2 internal thread holes being threadedly coupled；The top of the needle section 31 stretches out in three-way pipe 1 top plan of outer syringe needle.
A kind of acid and alkali-resistance chitosan 3D printing Coaxial nozzle that the utility model is mentioned passes through position when specifically used
Rubber tube 5 in top is passed through alkaline chitosan liquid, and alkaline chitosan liquid passes through rubber tube 5 into insert opening 33, and from
Outflow in interior pin hole 34；At the same time, be passed through acid coagulating bath liquid in branch pipe 2, acid coagulating bath liquid by branch pipe 2 into
Enter to outer pin hole 12, encircle in bottom end needle tubing portion 32 and flowed out from 12 bottom of outer pin hole, final two solution connects in nozzle nozzle
It touches and mixes and generate evolution reaction.It may be implemented directly to be mixed with chitosan with strong acid and strong base solution by said structure design
Hydrogel shapes for 3D printing and can efficiently carry out the mixing of acid coagulating bath liquid and alkaline chitosan liquid
And generate evolution reaction.
Embodiment described above is only that preferred embodiments of the present invention are described, not to this practicality
Novel conception and scope is defined.Without departing from the design concept of the present utility model, ordinary people in the field couple
The all variations and modifications that the technical solution of the utility model is made, should fall within the protection scope of the present utility model, this reality
With novel claimed technology contents, all record in detail in the claims.
Claims (4)
1. a kind of acid and alkali-resistance chitosan 3D printing Coaxial nozzle, it is characterised in that：Including syringe needle outside three-way pipe (1), branch pipe (2),
Interior syringe needle (3), interior syringe needle locking cap (4) and rubber tube (5), the outer syringe needle (1) of the three-way pipe, branch pipe (2) and interior syringe needle
(3) it is all made of that polypropylene is made to be formed, the interior syringe needle (3) includes integrally formed needle section (31) and bottom end needle tubing portion
(32), the bottom end of the needle section (31) is set as the taper being connect with needle tubing portion (32) rounding off, the top of needle section (31)
End is provided with an insert opening (33), and needle tubing portion (32) are internally provided with the interior pin hole (34) for being connected to insert opening (33), threeway
Include in the outer syringe needle (1) of pipe in one needle accommodating chamber (11) and one be connected to interior needle accommodating chamber (11) and be through to its bottom end outside
Pin hole (12), the needle section (31) match with interior needle accommodating chamber (11) shape, and branch pipe (2) normal thread is rotatably connected in threeway
The lateral wall and branch pipe (2) internal cavity of the outer syringe needle (1) of pipe are connected to outer pin hole (12), and the interior syringe needle (3) is located at outside three-way pipe
Syringe needle (1) is internal, and the needle section (31) is located in interior needle accommodating chamber (11), and the needle tubing portion (32) is located in outer pin hole (12)
And there is gap between the two, the interior syringe needle locking cap (4) is rotatably connected in outer syringe needle (1) top of three-way pipe and internally syringe needle (3)
Top, which is formed, to be squeezed, and the top of interior syringe needle locking cap (4) is provided with a perforation (41), and the rubber tube (5) passes through perforation (41)
And it is intercalated in insert opening (33).
2. a kind of acid and alkali-resistance chitosan 3D printing Coaxial nozzle according to claim 1, it is characterised in that：The three-way pipe
The top of outer syringe needle (1) is provided with external screw teeth, and interior syringe needle locking cap (4) bottom is provided with can be with syringe needle outside three-way pipe
(1) internal screw thread that screw thread is screwed on.
3. a kind of acid and alkali-resistance chitosan 3D printing Coaxial nozzle according to claim 1, it is characterised in that：The three-way pipe
The side of outer syringe needle (1) is provided with an internal thread hole that can be threadedly coupled with branch pipe (2).
4. a kind of acid and alkali-resistance chitosan 3D printing Coaxial nozzle according to claim 1, it is characterised in that：The needle section
(31) top stretches out in outer syringe needle (1) top plan of three-way pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820392288.5U CN207983995U (en) | 2018-03-22 | 2018-03-22 | A kind of acid and alkali-resistance chitosan 3D printing Coaxial nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820392288.5U CN207983995U (en) | 2018-03-22 | 2018-03-22 | A kind of acid and alkali-resistance chitosan 3D printing Coaxial nozzle |
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| Publication Number | Publication Date |
|---|---|
| CN207983995U true CN207983995U (en) | 2018-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820392288.5U Active CN207983995U (en) | 2018-03-22 | 2018-03-22 | A kind of acid and alkali-resistance chitosan 3D printing Coaxial nozzle |
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| CN (1) | CN207983995U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110666921A (en) * | 2019-10-25 | 2020-01-10 | 武汉理工大学 | Self-cleaning gypsum-based 3D printing spray head based on microfluid mixed structure |
| CN111825888A (en) * | 2019-04-10 | 2020-10-27 | 东北林业大学 | Preparation and forming method of chitosan ink for gel printing |
| CN113290858A (en) * | 2021-07-19 | 2021-08-24 | 中国医科大学 | Can dismantle biological 3D of formula of extruding and print coaxial shower nozzle |
-
2018
- 2018-03-22 CN CN201820392288.5U patent/CN207983995U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111825888A (en) * | 2019-04-10 | 2020-10-27 | 东北林业大学 | Preparation and forming method of chitosan ink for gel printing |
| CN110666921A (en) * | 2019-10-25 | 2020-01-10 | 武汉理工大学 | Self-cleaning gypsum-based 3D printing spray head based on microfluid mixed structure |
| CN110666921B (en) * | 2019-10-25 | 2021-04-20 | 武汉理工大学 | Self-cleaning gypsum-based 3D printing spray head based on microfluid mixed structure |
| CN113290858A (en) * | 2021-07-19 | 2021-08-24 | 中国医科大学 | Can dismantle biological 3D of formula of extruding and print coaxial shower nozzle |
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