CN206290874U - Injection device and quick coupling structure - Google Patents
Injection device and quick coupling structure Download PDFInfo
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- CN206290874U CN206290874U CN201621165076.0U CN201621165076U CN206290874U CN 206290874 U CN206290874 U CN 206290874U CN 201621165076 U CN201621165076 U CN 201621165076U CN 206290874 U CN206290874 U CN 206290874U
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- slot
- joint
- male joint
- female joint
- coupling structure
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Abstract
The utility model is related to a kind of injection device and quick coupling structure, quick coupling structure includes male joint, female joint, spring and hollow overcoat, the first end of the female joint is provided with slot, at least two breach are offered on the side wall of the slot, the breach is extended from the openend of slot to its bottom wall direction, the first end of the male joint is matched with the slot, and the first end of male joint can stretch into the first end clamping in the slot with the female joint, inwall one end of the overcoat is provided with spacing preiection, the first end outer wall of the female joint is provided with the annular groove around its circumferential direction, the spring is set in the first end of female joint and in the annular groove, the overcoat is set in the first end of female joint and the spacing preiection is slidably matched with the annular groove.Joint convenient disassembly, and because spring, overcoat and male joint and the collective effect of female joint clamping engagement, voltage endurance capability are good, be difficult to release.
Description
Technical field
The utility model is related to medical instruments field, more particularly to a kind of injection device and quick coupling structure.
Background technology
The joint major part of traditional injection device is female Luer, and female Luer needs rotation many in disassembly process
Circle, socket trouble.It is Snap-in joint to also have a kind of joint in addition, and the joint is although easy for installation, but voltage endurance capability is poor.
The content of the invention
It is not only resistance to based on this, it is necessary to for the defect of prior art, there is provided a kind of injection device and quick coupling structure
Pressure energy power is good, and easy disassembly.
Its technical scheme is as follows：
A kind of quick coupling structure, including male joint, female joint, spring, O-ring and hollow overcoat, the female joint
First end be provided with slot, offer at least two breach on the side wall of the slot, the breach from the openend of slot to
Its bottom wall direction extends, and the O-ring is set in the first end of the male joint, the first end of the male joint and the slot
Matching, and the first end of male joint can stretch into the interior first end clamping with the female joint of the slot, the inwall of the overcoat
One end is provided with spacing preiection, and the first end outer wall of the female joint is provided with the annular groove around its circumferential direction, the spring
It is set in the first end of female joint and in the annular groove, the overcoat is set in the first end of female joint and the limit
Position is raised to be slidably matched with the annular groove, and the spring is connected to the spacing preiection near the side of the openend of slot
On.
Its further technical scheme is as follows：
The first end of the male joint is provided with draw-in groove, and the inwall of the slot is provided with the fixture block with the pocket matches；Or
The first end of male joint described in person is provided with fixture block, and the inwall of the slot is provided with the draw-in groove matched with the fixture block, the public access
The first end of head is coordinated by fixture block with the first end of the female joint with draw-in groove realizes clamping.
The draw-in groove is the annular slot around male joint or female joint axial line, and the fixture block is around female joint or male joint
The annular fixture block of axial line, when the first end of the male joint is stretched into the slot, the fixture block is with draw-in groove relative to institute
State O-ring closer to the openend of the slot.
Four breach are offered on the side wall of the slot, four breach are equal along the circumferential direction interval of the slot
Set evenly.
The first end of the male joint is provided with annular mounting groove, and the O-ring is located in the annular mounting groove.
The front end of the male joint first end is in pre-small post-large frustum.
The slot includes reducer and permanent footpath section, and the permanent footpath section is a section where being close to slot openend, described
Breach is opened on the side wall of the permanent footpath section, and the internal diameter of the reducer is gradually subtracted from slot openend to its bottom wall direction
It is small.
It is described spacing when the spacing preiection is under the annular projection around overcoat axial line, and the spring free state
Projection is connected to the annular groove on the side wall of slot openend.
A kind of injection device, including described quick coupling structure, are provided with the first injection canal in the male joint, mother connects
The second injection canal is provided with head, when the male joint is with the female joint clamping, first injection canal and described second
Injection canal is docked and connected.
The advantage or principle to preceding solution are illustrated below：
Above-mentioned quick coupling structure, when male joint is installed with female joint, promotes overcoat towards the direction away from slot openend
Mobile, spring is compressed, and now spring is not limited socket sidewalls, due to the socket sidewalls of the female joint be provided with to
The breach that few two openends from slot extend to its bottom wall direction, makes socket sidewalls equivalent to elastic construction, the public access
The first end of head can extrude socket sidewalls when inserting in the slot makes it expand outwardly, unclamps outer casing spring and resets, overcoat court
Direction near slot openend is moved, and now spring is limited socket sidewalls, and socket sidewalls make the public affairs towards contract
Joint is pressed in the slot of the female joint, and outer wall and the slot of male joint inwall clamping；Male joint and female joint
During dismounting, overcoat towards the direction movement away from slot openend, spring is promoted no longer to limit the socket sidewalls, extract male joint
, convenient disassembly, by setting O-ring, seals male joint and female joint and is connected, it is to avoid company of the parenteral solution from both
Connect place's leakage, and the collective effect being engaged by clamping due to spring, overcoat, O-ring and male joint and female joint, the male joint and
Voltage endurance capability is good after female joint assembling, is difficult to release.
Above-mentioned injection device, after male joint is assembled with female joint, parenteral solution is along the first injection canal and the second injection canal
Flowing, can realize the fast assembling-disassembling to male joint and female joint, be conveniently replaceable, simple to operate, and voltage endurance capability is good.
Brief description of the drawings
Fig. 1 is the structural representation of male joint described in the utility model embodiment；
Fig. 2 is the structural representation of female joint described in the utility model embodiment；
Fig. 3 is the assembling schematic diagram that the utility model embodiment inserts male joint；
Fig. 4 is the generalized section of the A-A along Fig. 3；
Fig. 5 is the assembling schematic diagram after the utility model embodiment extracts male joint；
Fig. 6 is the generalized section of the B-B along Fig. 5.
Description of reference numerals：
10th, male joint, the 101, first injection canal, 110, annular mounting groove, 120, draw-in groove, 20, female joint, 201, second
Injection canal, 210, slot, 212, reducer, 214, permanent footpath section, 220, breach, 230, annular groove, 240, fixture block, 30, bullet
Spring, 40, overcoat, 410, spacing preiection, 50, O-ring.
Specific embodiment
As shown in figures 1 to 6, a kind of quick coupling structure, including male joint 10, female joint 20, spring 30 and hollow overcoat
40, the first end of the female joint 20 is provided with slot 210, and at least two breach 220 are offered on the side wall of the slot 210,
The breach 220 is from the openend of slot 210 to the extension of its bottom wall direction, the first end of the male joint 10 and the slot
210 matchings, and the first end of male joint 10 can stretch into the interior first end clamping with the female joint 20 of the slot 210, it is described
Inwall one end of overcoat 40 is provided with spacing preiection 410, and the first end outer wall of the female joint 20 is provided with around its circumferential direction
Annular groove 230, the spring 30 is set in the first end of female joint 20 and in the annular groove 230, the overcoat
40 first ends for the being set in female joint 20 and spacing preiection 410 is slidably matched with the annular groove 230, the spring 30
Side near the openend of slot 210 is connected on the spacing preiection 410.
As shown in Fig. 4,6, when male joint 10 is installed with female joint 20, overcoat 40 is promoted towards away from the openend of slot 210
Direction is moved, and spring 30 is compressed, and now spring 30 is not limited the side wall of slot 210, due to inserting for the female joint 20
The side wall of groove 210 is provided with the breach 220 that at least two openends from slot 210 extend to its bottom wall direction, makes the side of slot 210
Equivalent to elastic construction, the first end of the male joint 10 can extrude socket sidewalls when inserting in the slot 210 makes its court to wall
Outer expansion, unclamps overcoat 40, and spring 30 resets, and overcoat 40 is moved towards the direction near the openend of slot 210, now 30 pairs, spring
The side wall of slot 210 is limited, and the side wall of slot 210 makes the male joint 10 be pressed in the female joint 20 towards contract
In slot 210, and outer wall and the slot 210 of male joint 10 inwall clamping；When male joint 10 is dismantled with female joint 20, promote outer
Set 40 no longer limits the socket sidewalls, extracts male joint 10 towards the direction movement away from the openend of slot 210, spring,
Convenient disassembly, and due to spring 30, overcoat 40 and male joint 10 and the collective effect of the clamping engagement of female joint 20, the male joint
10 with female joint 20 assemble after voltage endurance capability it is good, be difficult to release.
Described quick coupling structure also includes O-ring 50, and the first end of the male joint 10 is provided with annular mounting groove
110, the O-ring 50 is set in the first end of the male joint 10 and in the annular mounting groove 110.By setting O
Type circle 50, makes male joint 10 be sealed with female joint 20 and is connected, it is to avoid parenteral solution is leaked from both junctions.
The first end of male joint 10 described in the present embodiment is provided with draw-in groove 120, and the inwall of the slot 210 is provided with and the card
The fixture block 240 of the matching of groove 120, the first end of the male joint 10 passes through fixture block 240 with card with the first end of the female joint 20
Groove 120 coordinates realizes clamping；It is described to insert according to realizing demand, it is also possible to set fixture block 240 in the first end of the male joint 10
The inwall of groove 210 sets the draw-in groove matched with the fixture block 240, realizes the clamping engagement of the figure female joint 20 of male joint 10.Due to
The side wall of slot 210 is provided with breach 220, and when the side wall of slot 210 is expanded outwardly by male joint extruding, fixture block 240 does not interfere with public affairs
Joint 10 loads in slot 210, when the side wall of slot 210 is towards contract, by the cooperation of draw-in groove 120 and fixture block 240, can enter one
Step makes male joint 10 be fastenedly connected with female joint 20, simple structure, designs ingenious.The side wall of slot 210 described in the present embodiment
On offer four breach 220, four breach 220 are set evenly and at intervals along the circumferential direction of the slot 210, i.e., four
The side wall of the slot 210 is divided into four 90 ° of sector point side walls by bar breach 220, and when spring 30 is compressed, insertion male joint is squeezed
The socket sidewalls are pressed, four points of side walls make slot 210 in bell mouth shape, when spring 30 towards the direction expansion away from axial line
During reset, four points of side walls are shunk by the direction that spring 30 is restrained from being close to axial line, so as to be engaged by clamping with male joint 10.Root
According to actual demand, the breach 220 can also be three or five etc..
The draw-in groove 120 is the annular slot around male joint 10 or the axial line of female joint 20, and the fixture block 240 is to be connect around mother
First 20 or the annular fixture block 240 of the axial line of male joint 10, when the first end of the male joint 10 is stretched into the slot 210,
The fixture block 240 is with draw-in groove 120 relative to the O-ring 50 closer to the openend of the slot 210.By setting annular snap
Groove coordinates with annular fixture block 240 realizes clamping, easy for installation when slot 210 is inserted in male joint 10 without being aligned to it,
And annular slot coordinates more firm with annular fixture block 240；The fixture block 240 is set with draw-in groove 120 relative to the O-ring 50
In the position closer to the openend of the slot 210, male joint 10 is set to be connected in the inner position seals of slot 210, it is outer
Position clamping, fast assembling-disassembling is better achieved, and sealing effectiveness is more preferable.The spacing preiection 410 is around the axial line of overcoat 40
Annular projection, and when under the free state of the spring 30, the spacing preiection 410 is connected to the annular groove 230 and is close to
On the side wall of the openend of slot 210, the annular groove 230 is abutted away from the side wall of the openend of slot 210 with the spring 30,
Spacing preiection 410 can be arranged to annular projection by the spacing preiection 410 along the bottom wall slide anteroposterior of annular groove 230, make limit
Position raised 410 can preferably coordinate compression with spring 30 or unclamp the side wall of the slot 210, when under the free state of spring 30,
The spacing preiection 410 is connected to the annular groove 230 on the side wall of the openend of slot 210, it is to avoid overcoat 40 is skidded off
The annular groove 230.
The front end of the first end of the male joint 10 is in pre-small post-large frustum, and so setting can play guide effect, just
In public access is inserted in the slot 210.The slot 210 includes reducer 212 and permanent footpath section 214, and the permanent footpath section 214 is
Near one section where the openend of slot 210, the breach 220 is opened on the side wall of the permanent footpath section 214, the reducer
212 internal diameter is gradually reduced from the openend of slot 210 to its bottom wall direction, the reducer 212 and the male joint 10 first
The front end matching at end, both coordinate, and male joint 10 is more securely arranged in the slot 210, it is to avoid male joint 10 is slided
Go out the slot 210.
The first note is provided with reference picture 1-6, a kind of injection device, including above-mentioned quick coupling structure, the male joint 10
Penetrate in passage 101, female joint 20 and be provided with the second injection canal 201, it is described when the male joint 10 is with 20 clamping of female joint
First injection canal 101 is docked and connected with second injection canal 201.The injection device, male joint 10 is filled with female joint 20
After matching somebody with somebody, parenteral solution flows along the first injection canal 101 with the second injection canal 201, can realize to male joint 10 and female joint 20
Fast assembling-disassembling, be conveniently replaceable, it is simple to operate, and voltage endurance capability is good.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed,
But therefore can not be interpreted as the limitation to the utility model the scope of the claims.It should be pointed out that common for this area
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (9)
1. a kind of quick coupling structure, it is characterised in that including male joint, female joint, spring, O-ring and hollow overcoat, institute
The first end for stating female joint is provided with slot, and at least two breach are offered on the side wall of the slot, and the breach is by slot
Openend extends to its bottom wall direction, and the O-ring is set in the first end of the male joint, the first end of the male joint with
The slot matching, and the first end of male joint can stretch into the interior first end clamping with the female joint of the slot, it is described outer
Inwall one end of set is provided with spacing preiection, and the first end outer wall of the female joint is provided with the annular groove around its circumferential direction,
The spring is set in the first end of female joint and in the annular groove, and the overcoat is set in the first end of female joint
And the spacing preiection is slidably matched with the annular groove, the spring is connected to described near the side of the openend of slot
On spacing preiection.
2. quick coupling structure as claimed in claim 1, it is characterised in that the first end of the male joint is provided with draw-in groove, institute
The inwall for stating slot is provided with fixture block with the pocket matches；Or the first end of the male joint is provided with fixture block, the slot
Inwall be provided with the draw-in groove matched with the fixture block, the first end of the male joint passes through fixture block with the first end of the female joint
Coordinate with draw-in groove and realize clamping.
3. quick coupling structure as claimed in claim 2, it is characterised in that the draw-in groove is around male joint or female joint axle center
The annular slot of line, the fixture block is the annular fixture block around female joint or male joint axial line, when the first end of the male joint
Stretch into when in the slot, the fixture block is with draw-in groove relative to the O-ring closer to the openend of the slot.
4. quick coupling structure as claimed in claim 3, it is characterised in that offered described in four on the side wall of the slot
Breach, four breach are set evenly and at intervals along the circumferential direction of the slot.
5. quick coupling structure as claimed in claim 4, it is characterised in that the first end of the male joint is provided with annular installation
Groove, the O-ring is located in the annular mounting groove.
6. quick coupling structure as claimed in claim 1, it is characterised in that the front end of the male joint first end in it is preceding it is small after
Big frustum.
7. quick coupling structure as claimed in claim 6, it is characterised in that the slot includes reducer with permanent footpath section, institute
It is a section where being close to slot openend to state permanent footpath section, and the breach is opened on the side wall of the permanent footpath section, the reducing
The internal diameter of section is gradually reduced from slot openend to its bottom wall direction.
8. the quick coupling structure as described in claim any one of 1-7, it is characterised in that the spacing preiection is around overcoat axle
When under the annular projection of heart line, and the spring free state, the spacing preiection is connected to the annular groove near slot
On the side wall of openend.
9. a kind of injection device, it is characterised in that described including the quick coupling structure as described in claim any one of 1-8
The first injection canal is provided with male joint, the second injection canal, the male joint and the female joint clamping are provided with female joint
When, first injection canal is docked and connected with second injection canal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621165076.0U CN206290874U (en) | 2016-10-31 | 2016-10-31 | Injection device and quick coupling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621165076.0U CN206290874U (en) | 2016-10-31 | 2016-10-31 | Injection device and quick coupling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206290874U true CN206290874U (en) | 2017-06-30 |
Family
ID=59095571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621165076.0U Active CN206290874U (en) | 2016-10-31 | 2016-10-31 | Injection device and quick coupling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206290874U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113339365A (en) * | 2021-06-28 | 2021-09-03 | 同济大学 | Split type inclined plane buckle connecting device |
| CN116877812A (en) * | 2023-09-04 | 2023-10-13 | 佛山市稚蒙环境科技有限公司 | Quick connector and water sample collector using same |
-
2016
- 2016-10-31 CN CN201621165076.0U patent/CN206290874U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113339365A (en) * | 2021-06-28 | 2021-09-03 | 同济大学 | Split type inclined plane buckle connecting device |
| CN113339365B (en) * | 2021-06-28 | 2023-03-28 | 同济大学 | Split type inclined plane buckle connecting device |
| CN116877812A (en) * | 2023-09-04 | 2023-10-13 | 佛山市稚蒙环境科技有限公司 | Quick connector and water sample collector using same |
| CN116877812B (en) * | 2023-09-04 | 2023-11-17 | 佛山市稚蒙环境科技有限公司 | Quick connector and water sample collector using same |
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