CN106492314A - Injection device and quick coupling structure - Google Patents

Injection device and quick coupling structure Download PDF

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Publication number
CN106492314A
CN106492314A CN201610940664.5A CN201610940664A CN106492314A CN 106492314 A CN106492314 A CN 106492314A CN 201610940664 A CN201610940664 A CN 201610940664A CN 106492314 A CN106492314 A CN 106492314A
Authority
CN
China
Prior art keywords
slot
end
joint
male joint
female joint
Prior art date
Application number
CN201610940664.5A
Other languages
Chinese (zh)
Inventor
赵汝琛
成朝福
肖吉玉
陈达龙
杜光奕
Original Assignee
广州爱锘德医疗器械有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 广州爱锘德医疗器械有限公司 filed Critical 广州爱锘德医疗器械有限公司
Priority to CN201610940664.5A priority Critical patent/CN106492314A/en
Publication of CN106492314A publication Critical patent/CN106492314A/en

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes

Abstract

The present invention relates 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 opening of slot to its diapire direction, the first end of the male joint is mated 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 is located 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 easy accessibility, and as spring, overcoat and male joint and the collective effect of female joint clamping engagement, voltage endurance capability are good, be difficult to release.

Description

Injection device and quick coupling structure

Technical field

The present invention relates 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.In addition it is Snap-in joint to also have a kind of joint, and the joint is although easy for installation, but voltage endurance capability is poor.

Content of the invention

It is 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, not only resistance to 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 and hollow overcoat, the first of the female joint End is provided with slot, offers at least two breach on the side wall of the slot, the breach from slot opening to its diapire Direction extends, and the first end of the male joint mate with the slot, and the first end of male joint can stretch in the slot and The first end clamping of the female joint, inwall one end of the overcoat are provided with spacing preiection, the first end outer wall of the female joint The annular groove around its circumferential direction is provided with, the spring is set in the first end of female joint and is located at the annular groove Interior, the overcoat is set in the first end of female joint and the spacing preiection is slidably matched with the annular groove, the spring Side near the opening of slot is connected on the spacing preiection.

Its further technical scheme is as follows:

Described quick coupling structure also includes that O-ring, the first end of the male joint are provided with annular mounting groove, the O Type snare is located at the first end of the male joint and is located in the annular mounting groove.

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 mated with the fixture block, the public access The first end of head is coordinated with draw-in groove by fixture block with the first end of the female joint realizes clamping.

The draw-in groove is that the fixture block is around female joint or male joint around male joint or the annular slot of female joint axial line The annular fixture block of axial line, when the first end of the male joint is stretched in the slot, the fixture block is with draw-in groove relative to institute O-ring is stated closer to the opening of the slot.

Four breach are offered on the side wall of the slot, and four breach are equal along the circumferential direction interval of the slot Arrange evenly.

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 be located near slot opening, 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 opening to its diapire direction Little.

The spacing preiection is the annular projection around overcoat axial line, and when under the spring free state, described spacing Projection is connected to the annular groove on the side wall of slot opening.

A kind of injection device, including described quick coupling structure, is provided with the first injection canal in the male joint, mother connects Be provided with the second injection canal in head, the male joint with during the female joint clamping, first injection canal and described second Injection canal is docked and connected.

Below the advantage or principle of preceding solution are illustrated:

Above-mentioned quick coupling structure, when male joint is installed with female joint, promotes overcoat towards the direction away from slot opening Mobile, spring is compressed, and now spring is not limited to socket sidewalls, due to the socket sidewalls of the female joint be provided with to The breach that few two openings from slot extend to its diapire 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 which expand outwardly, unclamps outer casing spring and resets, overcoat court Near the direction movement of slot opening, now spring is limited to socket sidewalls, and socket sidewalls make the public affairs towards contract Joint is pressed in the slot of the female joint, and the inwall clamping of the outer wall of male joint and slot;Male joint and female joint During dismounting, overcoat is promoted to move towards the direction away from slot opening, spring no longer limits the socket sidewalls, extracts male joint , easy accessibility, and the collective effect being engaged by clamping due to spring, overcoat and male joint and female joint, the male joint with After female joint assembling, voltage endurance capability is good, is difficult to release.

Above-mentioned injection device, after male joint is assembled with female joint, injection is along the first injection canal and the second injection canal Flowing, can realize, to male joint and the fast assembling-disassembling of female joint, being conveniently replaceable, simple to operation, and voltage endurance capability is good.

Description of the drawings

Structural representations of the Fig. 1 for male joint described in the embodiment of the present invention;

Structural representations of the Fig. 2 for female joint described in the embodiment of the present invention;

Fig. 3 is the assembling schematic diagram that the embodiment of the present invention inserts male joint;

Fig. 4 is the generalized section of A-A along Fig. 3;

Fig. 5 extracts the assembling schematic diagram after male joint for the embodiment of the present invention;

Fig. 6 is the generalized section of 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, offers at least two breach 220 on the side wall of the slot 210, The breach 220 is extended from the opening of slot 210 to its diapire direction, the first end of the male joint 10 and the slot 210 couplings, and the first end of male joint 10 can stretch into the first end clamping in the slot 210 with the female joint 20, 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 are set in the first end of female joint 20 and are located 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 opening 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 210 opening of slot Direction is moved, and spring 30 is compressed, and now spring 30 is not limited to 210 side wall of slot, due to inserting for the female joint 20 210 side wall of groove is provided with the breach 220 that at least two openings from slot 210 extend to its diapire direction, makes 210 side of slot Wall can extrude socket sidewalls when inserting in the slot 210 and make its court equivalent to elastic construction, the first end of the male joint 10 Outer expansion, unclamps overcoat 40, and spring 30 resets, direction movement of the overcoat 40 towards 210 opening of close slot, now 30 pairs, spring 210 side wall of slot is limited, and 210 side wall of slot makes the male joint 10 be pressed in the female joint 20 towards contract In slot 210, and the inwall clamping of the outer wall of male joint 10 and slot 210;When male joint 10 is dismantled with female joint 20, promote outer Set 40 is moved towards the direction away from 210 opening of slot, and spring no longer limits the socket sidewalls, extracts male joint 10, Easy accessibility, 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 good, be difficult to release.

Described quick coupling structure also includes that O-ring 50, the first end of the male joint 10 are provided with annular mounting groove 110, the O-ring 50 is set in the first end of the male joint 10 and is located in the annular mounting groove 110.By arranging O Type circle 50, makes male joint 10 be connected with the sealing of female joint 20, it is to avoid injection 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 coupling of groove 120, the first end of the male joint 10 pass through fixture block 240 with card with the first end of the female joint 20 Groove 120 coordinates realizes clamping;According to realizing demand, it is also possible to arrange fixture block 240 in the first end of the male joint 10, described insert The inwall of groove 210 arranges the draw-in groove mated with the fixture block 240, realizes the clamping engagement of 10 figure female joint 20 of male joint.Due to 210 side wall of slot is provided with breach 220, and when 210 side wall of slot is extruded expansion outwardly by male joint, fixture block 240 does not interfere with public affairs Joint 10 loads in slot 210, when 210 side wall of slot is towards contract, by draw-in groove 120 and the cooperation of 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 arranged evenly and at intervals along the circumferential direction of the slot 210, i.e., four 210 side wall of the slot is divided into four 90 ° sector point side walls by bar breach 220, and when spring 30 is compressed, insertion male joint is squeezed Press the socket sidewalls, four points of side walls to expand towards the direction away from axial line, slot 210 is made in bell mouth shape, when spring 30 During reset, four points of side walls are restrained from shrinking near the direction of axial line by spring 30, 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 that the fixture block 240 is to connect around mother around the annular slot of 20 axial line of male joint 10 or female joint 20 or the annular fixture block 240 of 10 axial line of male joint, when the first end of the male joint 10 is stretched in the slot 210, The fixture block 240 and draw-in groove 120 relative to the O-ring 50 closer to the slot 210 opening.By arranging annular snap Groove is coordinated with annular fixture block 240 realizes clamping, when slot 210 is inserted in male joint 10 without the need for carrying out para-position to which, easy for installation, And annular slot coordinate with annular fixture block 240 more firm;The fixture block 240 is arranged relative to the O-ring 50 with draw-in groove 120 In the position of the opening closer to the slot 210, male joint 10 is made to connect in the inner position seals of slot 210, outer Position clamping, fast assembling-disassembling is better achieved, and sealing effectiveness is more preferable.The spacing preiection 410 is around 40 axial line of overcoat Annular projection, and when under 30 free state of the spring, it is close that the spacing preiection 410 is connected to the annular groove 230 On the side wall of 210 opening of slot, the annular groove 230 is abutted with the spring 30 away from the side wall of 210 opening of slot, Spacing preiection 410 can be arranged to annular projection, makes limit along the diapire slide anteroposterior of annular groove 230 by the spacing preiection 410 Position raised 410 preferably can be coordinated compression or unclamp 210 side wall of the slot with spring 30, when under 30 free state of spring, The spacing preiection 410 is connected to the annular groove 230 on the side wall of 210 opening of slot, it is to avoid overcoat 40 is skidded off The annular groove 230.

The front end of 10 first end of the male joint is in pre-small post-large frustum, so arranges and can play guide effect, just In public access being inserted in the slot 210.The slot 210 includes that reducer 212 and permanent footpath section 214, the permanent footpath section 214 are One section be located near 210 opening of slot, the breach 220 is opened on the side wall of the permanent footpath section 214, the reducer 212 internal diameter is gradually reduced from 210 opening of slot to its diapire direction, the reducer 212 and the male joint 10 first The front end coupling 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.

Reference picture 1-6, a kind of injection device, including above-mentioned quick coupling structure, are provided with the first note in the male joint 10 Penetrate passage 101, in female joint 20, be provided with the second injection canal 201, the male joint 10 with during 20 clamping of female joint, described First injection canal 101 is docked and connected with second injection canal 201.The injection device, male joint 10 are filled with female joint 20 After matching somebody with somebody, injection is flowed with the second injection canal 201 along the first injection canal 101, can be realized to male joint 10 and female joint 20 Fast assembling-disassembling, be conveniently replaceable, simple to operation, and voltage endurance capability is good.

Each technical characteristic of embodiment described above arbitrarily can be combined, for making 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 the several embodiments of the present invention, and its description is more concrete and detailed, but simultaneously Therefore the restriction to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art For, without departing from the inventive concept of the premise, some deformations and improvement can also be made, these belong to the guarantor of the present invention Shield scope.Therefore, the protection domain of patent of the present invention should be defined by claims.

Claims (9)

1. a kind of quick coupling structure, it is characterised in that including male joint, female joint, spring and hollow overcoat, the mother connects The first end of head is provided with slot, offers at least two breach, opening of the breach by slot on the side wall of the slot Extend to its diapire direction, the first end of the male joint mate with the slot, and described in the first end of male joint can stretch into First end clamping in slot with the female joint, inwall one end of the overcoat are provided with spacing preiection, and the of the female joint One end outer wall is provided with the annular groove around its circumferential direction, and the spring is set in the first end of female joint and is located at the ring In connected in star, the overcoat is set in the first end of female joint and the spacing preiection is slidably matched with the annular groove, institute State spring to be connected on the spacing preiection near the side of the opening of slot.
2. quick coupling structure as claimed in claim 1, it is characterised in which also includes O-ring, the first of the male joint End is provided with annular mounting groove, and the O-ring is set in the first end of the male joint and is located in the annular mounting groove.
3. quick coupling structure as claimed in claim 2, 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 the 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 mated 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.
4. quick coupling structure as claimed in claim 3, 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 are the annular fixture block around female joint or male joint axial line, when the first end of the male joint When stretching in the slot, the fixture block and draw-in groove relative to the O-ring closer to the slot opening.
5. quick coupling structure as claimed in claim 1, it is characterised in that offer described in four on the side wall of the slot Breach, four breach are arranged evenly and at intervals along the circumferential direction of the slot.
6. quick coupling structure as claimed in claim 1, it is characterised in that the front end of the male joint first end in front little 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 be located near slot opening 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 opening to its diapire direction.
8. the quick coupling structure as described in any one of claim 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 opening.
9. a kind of injection device, it is characterised in that include the quick coupling structure as described in any one of claim 1-8, described The first injection canal is provided with male joint, is provided with the second injection canal, the male joint and the female joint clamping in female joint When, first injection canal is docked and connected with second injection canal.
CN201610940664.5A 2016-10-31 2016-10-31 Injection device and quick coupling structure CN106492314A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610940664.5A CN106492314A (en) 2016-10-31 2016-10-31 Injection device and quick coupling structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610940664.5A CN106492314A (en) 2016-10-31 2016-10-31 Injection device and quick coupling structure

Publications (1)

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CN106492314A true CN106492314A (en) 2017-03-15

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19854685A1 (en) * 1998-11-26 2000-05-31 Christian Heilmann Quick-fit coupling for connecting hose pipes has locking device with two slits running on curved path in sleeve body and with ends lying on straight line crooked relative to axis of sleeve
EP1302210A1 (en) * 2000-07-14 2003-04-16 Estech Corporation Ltd Socket for artificial dialyzer
US20030151253A1 (en) * 2002-02-11 2003-08-14 Sam Zhadanov Safety quick connection
CN1616880A (en) * 2003-11-13 2005-05-18 施托布利法韦日公司 Female coupling element and quick-connect coupling incorporating such an element
CN2781151Y (en) * 2005-03-18 2006-05-17 佛山市三水合成塑胶五金制品有限公司 Pipe connection device
CN201593659U (en) * 2009-12-31 2010-09-29 厦门市易洁卫浴有限公司 Clamp type quick connector
CN102679074A (en) * 2011-03-08 2012-09-19 As知识产权控股有限公司 Quick connection coupling
US20130184651A1 (en) * 2010-09-30 2013-07-18 Sanofi-Aventis Deutschland Gmbh Flexible fastener for drug delivery device
CN203516775U (en) * 2013-10-20 2014-04-02 浙江欣奇汽配制造有限公司 Quick connection valve with groove type sealing ring

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19854685A1 (en) * 1998-11-26 2000-05-31 Christian Heilmann Quick-fit coupling for connecting hose pipes has locking device with two slits running on curved path in sleeve body and with ends lying on straight line crooked relative to axis of sleeve
EP1302210A1 (en) * 2000-07-14 2003-04-16 Estech Corporation Ltd Socket for artificial dialyzer
US20030151253A1 (en) * 2002-02-11 2003-08-14 Sam Zhadanov Safety quick connection
CN1616880A (en) * 2003-11-13 2005-05-18 施托布利法韦日公司 Female coupling element and quick-connect coupling incorporating such an element
CN2781151Y (en) * 2005-03-18 2006-05-17 佛山市三水合成塑胶五金制品有限公司 Pipe connection device
CN201593659U (en) * 2009-12-31 2010-09-29 厦门市易洁卫浴有限公司 Clamp type quick connector
US20130184651A1 (en) * 2010-09-30 2013-07-18 Sanofi-Aventis Deutschland Gmbh Flexible fastener for drug delivery device
CN102679074A (en) * 2011-03-08 2012-09-19 As知识产权控股有限公司 Quick connection coupling
CN203516775U (en) * 2013-10-20 2014-04-02 浙江欣奇汽配制造有限公司 Quick connection valve with groove type sealing ring

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