CN208989902U - Medical syringe high sealing chock plug - Google Patents
Medical syringe high sealing chock plug Download PDFInfo
- Publication number
- CN208989902U CN208989902U CN201820535978.1U CN201820535978U CN208989902U CN 208989902 U CN208989902 U CN 208989902U CN 201820535978 U CN201820535978 U CN 201820535978U CN 208989902 U CN208989902 U CN 208989902U
- Authority
- CN
- China
- Prior art keywords
- chock plug
- sealing ring
- plug ontology
- sealing
- ontology
- Prior art date
- 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.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 54
- 230000002093 peripheral effect Effects 0.000 claims abstract description 11
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 241000826860 Trapezium Species 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000003814 drug Substances 0.000 description 7
- 229940079593 drug Drugs 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 101100532451 Rattus norvegicus Slc22a17 gene Proteins 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Abstract
The utility model belongs to medical instruments field, specifically a kind of medical syringe high sealing chock plug.It includes chock plug ontology, chock plug ontology one end forms the connecting hole being cooperatively connected with injector push-rod, it is equipped with chamfering within another end margin of chock plug ontology one week, a cylindrical cavity is formed in chock plug ontology, pressure expanded cake is placed with inside the inner cavity, the outer of pressure expanded cake is contacted with the inner wall of inner cavity, and the center of pressure expanded cake is connect with chock plug ontology；It is to have an annular groove on the outer peripheral surface of chock plug ontology, groove is embedded in a sealing ring, is fixed with annular sealing ring on the outer peripheral surface of the sealing ring.The utility model has the beneficial effects that making pressure expanded cake deformation that strength is conducted to sealing ring by stress, the sealing effect of sealing plug is improved, the stability and safety of syringe are strengthened.
Description
Technical field
The utility model belongs to medical instruments field, specifically a kind of medical syringe high sealing chock plug.
Background technique
The composition of existing syringe constructs, and mainly includes one for loading the syringe body of flask for medicinal preparations, syringe
One end of ontology is equipped with syringe needle, and the other end of syringe body is equipped with injection propulsion assembly, and has syringe needle in syringe body
One end be arranged with one removable group of upper shield, by syringe needle the cover in interior.Before the injection, flask for medicinal preparations must be loaded on syringe sheet in advance
Body, and protrude into syringe needle in flask for medicinal preparations when injection, upper shield is removed, is pierced into person's body to be injected with syringe needle, pressing injection is connected
Propulsion assembly injects the liquid pharmaceutical in flask for medicinal preparations in the person's of being injected body, however, in the composition construction of existing syringe, it is living
The push of stick harness and piston stroke and drawing-out structure have been that mode extensively just is being taken out when this kind of syringe loads medicament
It needs to extract out piston boit when taking drug, drug is inserted in syringe by draught head, needs to insert drug certain drug device
When ware or patient's body, because the reaction force of injection object can be to the piston chock plug in syringe when being injected
Generate pressure and active force, thus when chock plug structure built on the sand or sealing performance is not good when will cause liquid in syringe
The spilling of drug, drug can not be according to dosage injected into target, existing piston chock plug simply by a smooth plane with
Syringe inner wall is slidably matched, and is sealed by the material tension of itself, and usual pressure can carry out close when small
Envelope, but pressure change or it is big when sealing performance just decline it is obvious.
Summary of the invention
Problem to be solved in the utility model is to provide the medical syringe high sealing chock plug that sealing performance greatly improves.
Realizing the technical solution of the present utility model purpose is:
Medical syringe high sealing chock plug, it includes chock plug ontology, and chock plug ontology one end forms one and syringe
The connecting hole that push rod is cooperatively connected is equipped with chamfering for another end margin of chock plug ontology one week, forms a cylinder in chock plug ontology
Inner cavity, inner cavity the inside are placed with pressure expanded cake, and the outer of pressure expanded cake is contacted with the inner wall of inner cavity, pressure expanded cake
Center is connect with chock plug ontology；It is to have an annular groove on the outer peripheral surface of chock plug ontology, groove is embedded in a sealing ring,
Annular sealing ring is fixed on the outer peripheral surface of the sealing ring.
The groove is trapezoidal groove, and the inside of sealing ring is trapezium structure and is embedded in trapezoidal groove.
The pressure expanded cake is equipped with forced section, leads power portion, extending part and support portion, and the support portion and sealing ring are same
On one axis.
The thickness of the extending part is greater than support portion thickness, and forced section thickness is greater than extending part thickness.
By the technical program, strength can be conducted to pressure when the chock plug ontology of sealing plug is by pressure extrusion
Cake is expanded, strength is transmitted to sealing ring by deforming by pressure expanded cake, further by the sealing ring on sealing ring outer peripheral surface
Sealing is strengthened, sealing effect is improved.
The utility model has the beneficial effects that making pressure expanded cake deformation that strength is conducted to sealing ring by stress, mention
The high sealing effect of sealing plug, strengthens the stability and safety of syringe.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
Medical syringe high sealing chock plug, it includes chock plug ontology 1, and 1 one end of chock plug ontology forms one and injection
The connecting hole 2 that device push rod is cooperatively connected is equipped with chamfering 3, molding one in chock plug ontology 1 for 1 another end margin of chock plug ontology one week
Cylindrical cavity 4 is placed with pressure expanded cake 5 inside the inner cavity 4, and the outer of pressure expanded cake 5 is contacted with the inner wall of inner cavity 4,
The center of pressure expanded cake 5 is connect with chock plug ontology 1；It is to have an annular groove 6, groove 6 on the outer peripheral surface of chock plug ontology 1
It is embedded in a sealing ring 7, annular sealing ring 8 is fixed on the outer peripheral surface of the sealing ring 7, groove is trapezoidal groove, sealing ring
7 inside is trapezium structure and to be embedded in trapezoidal groove, pressure expanded cake 5 is equipped with forced section 5a, lead power portion 5b, extending part 5c and
On the same axis, the thickness of extending part is greater than support portion thickness for support portion 5d, support portion 5d and sealing ring 7, and forced section is thick
Degree is greater than extending part thickness, can be conducted to strength when the chock plug ontology of sealing plug is by pressure extrusion pressure expanded
Cake, pressure expanded cake 5 is by forced section 5a and leads the deformation of power portion 5b strength is transferred to extending part 5c, extending part 5c stress
Squeeze support portion 5d, support portion 5d contact with the inner wall of chock plug ontology 1 and with sealing ring on the same axis, then by extruding
Strength passes to sealing ring by the inner wall of chock plug ontology 1, and 7 stress of sealing ring expands outwardly, gone out 1 outer peripheral surface of chock plug ontology with
Syringe inner wall carries out cooperation sealing, seals additionally by 8 further progress of sealing ring, the sealing ring 7 on 7 outer peripheral surface of sealing ring
Sealing performance is further enhanced, sealing effect is improved.
Claims (4)
1. a kind of medical syringe high sealing chock plug, it includes chock plug ontology, and chock plug ontology one end forms one and injection
The connecting hole that device push rod is cooperatively connected is equipped with chamfering in another end margin of chock plug ontology one week, it is characterised in that: chock plug ontology it is interior at
One cylindrical cavity of type, inner cavity the inside are placed with pressure expanded cake, and the outer of pressure expanded cake is contacted with the inner wall of inner cavity,
The center of pressure expanded cake is connect with chock plug ontology；It is to have an annular groove on the outer peripheral surface of chock plug ontology, groove is embedded
Enter a sealing ring, is fixed with annular sealing ring on the outer peripheral surface of the sealing ring.
2. medical syringe according to claim 1 high sealing chock plug, it is characterised in that: the groove is trapezoidal recessed
Slot, the inside of sealing ring are trapezium structure and are embedded in trapezoidal groove.
3. medical syringe according to claim 1 high sealing chock plug, it is characterised in that: the pressure expanded cake is set
There is forced section, lead power portion, extending part and support portion, the support portion and sealing ring are on the same axis.
4. medical syringe according to claim 3 high sealing chock plug, it is characterised in that: the thickness of the extending part
Greater than support portion thickness, forced section thickness is greater than extending part thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820535978.1U CN208989902U (en) | 2018-04-16 | 2018-04-16 | Medical syringe high sealing chock plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820535978.1U CN208989902U (en) | 2018-04-16 | 2018-04-16 | Medical syringe high sealing chock plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208989902U true CN208989902U (en) | 2019-06-18 |
Family
ID=66794626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820535978.1U Expired - Fee Related CN208989902U (en) | 2018-04-16 | 2018-04-16 | Medical syringe high sealing chock plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208989902U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117232726A (en) * | 2023-11-14 | 2023-12-15 | 常州市华伟医疗用品有限公司 | A leakproofness batch detection system for syringe piston |
-
2018
- 2018-04-16 CN CN201820535978.1U patent/CN208989902U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117232726A (en) * | 2023-11-14 | 2023-12-15 | 常州市华伟医疗用品有限公司 | A leakproofness batch detection system for syringe piston |
| CN117232726B (en) * | 2023-11-14 | 2024-02-13 | 常州市华伟医疗用品有限公司 | A leakproofness batch detection system for syringe piston |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190618 |