CN205678318U - Snap joint - Google Patents

Snap joint Download PDF

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Publication number
CN205678318U
CN205678318U CN201620591517.7U CN201620591517U CN205678318U CN 205678318 U CN205678318 U CN 205678318U CN 201620591517 U CN201620591517 U CN 201620591517U CN 205678318 U CN205678318 U CN 205678318U
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CN
China
Prior art keywords
terminal
contiguous block
locking cap
snap
ring
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.)
Active
Application number
CN201620591517.7U
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Chinese (zh)
Inventor
查昭
陈金勇
陈礼宏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang wandekai fluid equipment Polytron Technologies Inc
Original Assignee
ZHEJIANG WANDEKAI COPPER INDUSTRIES Co Ltd
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.)
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Publication date
Application filed by ZHEJIANG WANDEKAI COPPER INDUSTRIES Co Ltd filed Critical ZHEJIANG WANDEKAI COPPER INDUSTRIES Co Ltd
Priority to CN201620591517.7U priority Critical patent/CN205678318U/en
Application granted granted Critical
Publication of CN205678318U publication Critical patent/CN205678318U/en
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Abstract

The utility model provides a kind of snap joint, belongs to field of mechanical technique.It solve existing snap joint applicability problem low, that connected structure cannot be positioned when grafting large-caliber pipe fittings.It includes joint body, one end of joint body is inserted terminal, it is provided with snap ring and internal lining pipe in inserted terminal, the port of inserted terminal is connected with locking cap, locking cap is limited in snap ring and internal lining pipe in inserted terminal, the center of the outer end self-locking cap of internal lining pipe passes through outside locking cap, and locking cap the inner has the contiguous block in circular protrusion, in contiguous block stretches into inserted terminal and is provided with, between the lateral wall and the madial wall of inserted terminal of contiguous block, the interface arrangment that contiguous block can be made to be connected in inserted terminal.It has, and applicability is high, can carry out the advantages such as positioning easily to connected structure.

Description

Snap joint
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of snap joint.
Background technology
In daily life, producing, the pipelines such as water route, gas circuit, oil circuit are connected and usually needs to be carried out even by joint Connect, when using traditional Pipe joint to be attached with pipeline, be essentially all by screw thread, glue, card pressure or hot melt etc. Mode is attached, but these connected modes operate cumbersome, and it is slow again to couple together speed.Snap joint is The problems referred to above that people exist for traditional Pipe joint and design a kind of can form connecing of being quickly connected with pipeline Head.
Structure such as the Chinese patent once disclosed one inserted type quick coupling of conventional snap joint [application number: 201120108145.5], it includes a body in a tubular form, and the inwall of body is provided with positioning step, the port of body Inwall is fixed with an annular dog collar with several latches, and each latch uses sheet metal to make and towards dog collar axle center side To stretching out, being fixed with sealing ring between annular dog collar and positioning step, body is provided with a pipe for the outer end inserting plastic tube Intubating of shape, the inner intubating is inserted in body, when connecting pipe fitting, pipe fitting is inserted into this is internal from intubating, pipe fitting Through dog collar, the latch on dog collar can be engaged on the lateral wall of pipe fitting thus form quick connection, only need to will insert when dismounting Dog collar is strutted and dog collar can be made to be separated with pipe fitting by pipe from outside to inside.
In above-mentioned inserted type quick coupling, spin off in joint body with intubating to prevent dog collar, typically all The end of joint body can be arranged to reducing shape, by gradually tapering up of joint body end, dog collar and intubating be limited Position, but snap joint when this mode is only applicable to connect small-bore pipe fitting uses.When needs connect large-caliber pipe fittings, The internal diameter of one end that joint body connects pipe fitting certainly will need to increase according to the increase of tube outer diameter, then joint body is even The wall thickness of one end of jointed tubular workpieces causes the end of joint body cannot come by way of inside reducing as well as thickening Carry out spacing.
Content of the invention
The purpose of this utility model is the problems referred to above existing for prior art, it is proposed that a kind of snap joint, Solve the technical problem that the applicability being how to improve snap joint, especially when grafting large-caliber pipe fittings more easily to inserting Access node structure positions.
The purpose of this utility model can be realized by following technical proposal:
Snap joint, including joint body, one end of described joint body is inserted terminal, is provided with in described inserted terminal Snap ring and internal lining pipe, the port of described inserted terminal is connected with locking cap, and described locking cap is by spacing to snap ring and internal lining pipe In inserted terminal, the center of the outer end self-locking cap of described internal lining pipe passes through outside locking cap, it is characterised in that described lock Tight cap the inner has the contiguous block in circular protrusion, in described contiguous block stretches into inserted terminal and contiguous block lateral wall with It is provided with the interface arrangment that contiguous block can be made to be connected in inserted terminal between the madial wall of inserted terminal.
It when assembling, is arranged on snap ring and internal lining pipe in inserted terminal, then the contiguous block inside locking cap is extend into In inserted terminal, and make to be formed between contiguous block lateral wall and between the madial wall of inserted terminal clamping, contiguous block by interface arrangment Thus be positioned at snap ring and internal lining pipe in inserted terminal.
This snap joint by arrange inside locking cap contiguous block and contiguous block lateral wall and inserted terminal madial wall it Between interface arrangment is set, utilize interface arrangment that contiguous block can be quickly attached in inserted terminal, snap fit onto at contiguous block Directly positioning snap ring and internal lining pipe after in inserted terminal, positioning is got up convenient, is especially used for this snap joint During grafting large-caliber pipe fittings, this positioning mode more can solve the orientation problem of big specification snap ring and internal lining pipe well, very well Improve the applicability of this snap joint.
In above-mentioned snap joint, described interface arrangment include the annular slot that is arranged on inserted terminal madial wall with And it is positioned at the Access Division protruded outside the contiguous block of locking cap in bulk, the Access Division on contiguous block snaps in annular slot.
By arranging in block Access Division outside contiguous block, annular slot is set inside inserted terminal, utilizes bulk The coordinating so that the contiguous block inside locking cap very quickly can form clamping with inserted terminal of Access Division and annular slot, from And easily positioning is formed to snap ring and internal lining pipe.
In above-mentioned snap joint, the external diameter of described contiguous block is more than the internal diameter of the port of inserted terminal, described company Connecing and having the short slot that some rear ends to contiguous block are offered on the inner face of block, described short slot runs through the sidewall of contiguous block, institute There is inside the port of the inserted terminal stated tapered spigot surface.
The external diameter of contiguous block is more than the external diameter of the port of inserted terminal, in order to enable contiguous block to enter into inserted terminal smoothly In, by having the short slot that some rear ends to contiguous block are offered on the inner face at contiguous block, short slot runs through the side of contiguous block Portion so that contiguous block is discontinuous ring-type and is provided with certain elasticity, arrange inside the port of inserted terminal simultaneously in The spigot surface of taper, after the contiguous block of locking cap inserts from the port of inserted terminal, spigot surface can play guide effect, and At the extruding lower connecting block of this spigot surface to contract, until contiguous block is completely into after in inserted terminal, outside spreading is simultaneously again The Access Division outside contiguous block is made to snap in the annular slot inside inserted terminal.
In above-mentioned snap joint, described annular slot stretches out in annular away from the cell wall of the port side of inserted terminal Draw-in groove is outside the cell wall of the port side of inserted terminal, and the inner face of described snap ring outer rim is resisted against annular slot away from grafting On the cell wall of the port side of end, the inner of described contiguous block is pressed on the outer face of snap ring outer rim.
Annular slot stretches out annular slot near the port side of inserted terminal away from the cell wall of the port side of inserted terminal Outside cell wall, during installation, the outer rim of snap ring is placed on annular slot away from the cell wall of the port side of inserted terminal outside, then will lock Block Access Division outside the contiguous block of tight nut and the annular slot inside inserted terminal form clamping, and the inner of contiguous block is stretched into In annular slot and be pressed on the outer face of snap ring outer rim to snap ring formed positioning.
In above-mentioned snap joint, as another kind of technical scheme, described interface arrangment includes being arranged at inserted terminal The fixture block that protrudes in the form of a ring of inner side and be opened in link slot in the form of a ring outside contiguous block, described fixture block Snap joint groove In.
By arranging link slot in the form of a ring outside contiguous block, the fixture block protruding in the form of a ring is set inside inserted terminal, Utilize coordinating so that the contiguous block inside locking cap very quickly can form clamping with inserted terminal of fixture block and link slot, thus Easily positioning is formed to snap ring and internal lining pipe.
In above-mentioned snap joint, the external diameter of described contiguous block is corresponding with the internal diameter of inserted terminal, described connection Having the short slot that some rear ends to contiguous block are offered on the inner face of block, described short slot runs through the sidewall of contiguous block, described Fixture block outer face on there is tapered spigot surface.
Owing to the external diameter of contiguous block and the internal diameter of inserted terminal are corresponding, after contiguous block is inserted in inserted terminal, due to card Block protrudes from the madial wall of inserted terminal in the form of a ring, therefore arranges some after contiguous block on the inner face of contiguous block in mistake The short slot that end is offered, short slot runs through the sidepiece of contiguous block so that contiguous block is discontinuous ring-type and is provided with certain bullet Property, tapered spigot surface is set on the outer face of fixture block simultaneously, after contiguous block the inner contacts with the outer face of fixture block, Spigot surface can play guide effect, and is able to suitable at the extruding lower connecting block of this spigot surface to contract, contiguous block front end Profit jump over fixture block and until fixture block snap onto in the link slot outside contiguous block.
In above-mentioned snap joint, having circular step in described inserted terminal, described circular step is relative to card Block stretches out in outside fixture block away from the port of inserted terminal, described circular step, and the inner face of described snap ring outer rim is resisted against ring On shape step, the inner of described contiguous block is pressed on the outer face of snap ring outer rim.
It during installation, is resisted against snap ring outer rim on circular step, owing to circular step stretches out in outside fixture block, then connecting After fixture block inside link slot outside block and inserted terminal forms clamping, jump over fixture block be pressed in snap ring outer rim in the inner of contiguous block Outer face on, thus to snap ring formed positioning.
In above-mentioned snap joint, described locking cap the inner has ring-type gear edge, outside the inner of described internal lining pipe Side has annular shoulder, and described annular shoulder leans with ring-type gear edge.
After the contiguous block of locking cap snaps fit onto in the port of inserted terminal, snap ring is positioned by the inner of contiguous block, liner The outer end of pipe in inserted terminal by the center of locking cap through locking cap, the annular shoulder outside internal lining pipe is inner and lock The inner ring-type gear edge of tight cap leans and forms positioning to internal lining pipe.
In above-mentioned snap joint, described locking cap and contiguous block are integral type structure, and described locking cap is by moulding Material material is made.Using plastic material to make locking cap, the contiguous block that locking cap can be made inner has more preferable deformation power, Can become during clamping to be more prone to.
Compared with prior art, this snap joint is by arranging in circular contiguous block inside locking cap, and even Connect and between block lateral wall and locking cap madial wall, interface arrangment is set, utilize interface arrangment that contiguous block can be connected rapidly In inserted terminal, snapping fit onto after in inserted terminal at contiguous block and directly positioning snap ring and internal lining pipe, positioning is got up more square Just, when especially this snap joint being used for grafting large-caliber pipe fittings, this positioning mode more can solve big specification card well Ring and the orientation problem of internal lining pipe, improve the applicability of this snap joint well.
Brief description
Fig. 1 is the partial sectional view of this snap joint.
Fig. 2 is the exploded view of this snap joint.
In figure, the 1st, joint body;1a, inserted terminal;1a1, annular slot;1a2, spigot surface;2nd, snap ring;3rd, internal lining pipe;3a、 Annular shoulder;4th, locking cap;4a, contiguous block;4a1, Access Division;4a2, short slot;4b, ring-type gear edge.
Detailed description of the invention
The following is specific embodiment of the utility model and combine accompanying drawing, the technical solution of the utility model is made further Description, but the utility model is not limited to these embodiments.
Embodiment one
As depicted in figs. 1 and 2, snap joint, including joint body 1, one end of joint body 1 is inserted terminal 1a, grafting Being provided with snap ring 2 and internal lining pipe 3 in end 1a, the port of inserted terminal 1a is connected with locking cap 4, and the inner of locking cap 4 has in circle The contiguous block 4a of ring-type protrusion, contiguous block 4a extend in inserted terminal 1a, and at lateral wall and the inserted terminal 1a of contiguous block 4a It is provided with the interface arrangment of the madial wall phase clamping that can make contiguous block 4a and inserted terminal 1a between madial wall.The inner tool of locking cap 4 Having ring-type gear along 4b, having annular shoulder 3a outside the inner of internal lining pipe 3, annular shoulder 3a leans along 4b with ring-type gear.Even Connecing the internal diameter more than the port of inserted terminal 1a for the external diameter of block 4a, contiguous block 4a is integral type structure with locking cap 4, and locking cap 4 is adopted Being made by plastic material, the inner face of contiguous block 4a having some short slot 4a2 offering to the rear end of contiguous block 4a, these lack Groove 4a2 all runs through the sidewall of contiguous block 4a, has tapered spigot surface 1a2 inside the port of inserted terminal 1a.At the present embodiment In, there is in joint body 1 annular positioning groove, annular positioning groove is built with sealing ring.
Interface arrangment include the annular slot 1a1 being arranged on inserted terminal 1a madial wall and be positioned at outside contiguous block 4a and The Access Division 4a1 protruding in bulk, Access Division 4a1 snaps onto in annular slot 1a1.Annular slot 1a1 is away from inserted terminal 1a's The cell wall of port side stretches out in annular slot 1a1 outside the cell wall of the port side of inserted terminal 1a, the inner of snap ring 2 outer rim Face is resisted against annular slot 1a1 away from the cell wall of the port side of inserted terminal 1a, and the inner of contiguous block 4a is pressed in snap ring 2 outer rim Outer face on.
When assembling, in first snap ring 2 being placed on the annular slot 1a1 of inserted terminal 1a and make the outer rim of snap ring 2 be resisted against Internal lining pipe 3, away from the cell wall of the port side of inserted terminal 1a, is then put in inserted terminal 1a, finally by annular slot 1a1 Reconnect locking cap 4.Owing to locking cap 4 the inner is the contiguous block 4a of circular protrusion, the external diameter of contiguous block 4a is more than grafting The internal diameter of end 1a port, therefore to enable contiguous block 4a to be successfully inserted in inserted terminal 1a, from the inner face of contiguous block 4a On offer some short slot 4a2 to the rear end of contiguous block 4a and ensure that short slot 4a2 runs through the sidewall of contiguous block 4a, so just make Contiguous block 4a is divided into some lobes thus has elasticity, arranges tapered spigot surface inside the port of inserted terminal 1a simultaneously 1a2, then when contiguous block 4a is inserted in inserted terminal 1a, in the inner of effect lower connecting block 4a of spigot surface 1a2 along leading Move inward to face 1a2 and contiguous block 4a is deformed inward contraction under the extruding of spigot surface 1a2.
When contiguous block 4a is completely by spigot surface 1a2 and after enter in inserted terminal 1a, contiguous block 4a is at its own resilient Under effect, outside spreading resets, and the Access Division 4a1 outside contiguous block 4a then takes advantage of a situation the annular slot 1a1 snapping onto in inserted terminal 1a In, so that contiguous block 4a is connected in inserted terminal 1a, the inner of contiguous block 4a is then pressed on the outer face of snap ring 2 outer rim will card Ring 2 is spacing, internal lining pipe 3 then matched along 4b by the ring-type gear of the annular shoulder 3a outside its inner and locking cap 4 the inner and Formed spacing.
This snap joint is by arranging contiguous block 4a and enabling contiguous block 4a fast by interface arrangment inside locking cap 4 It is connected in inserted terminal 1a fastly, snap fit onto at contiguous block 4a and directly carry out to snap ring 2 and internal lining pipe 3 after in inserted terminal 1a determining Position, positioning is got up convenient, and when especially this snap joint being used for grafting large-caliber pipe fittings, this positioning mode more can be very Solve well the orientation problem of big specification snap ring 2 and internal lining pipe 3, improve the applicability of this snap joint well.
Embodiment two
The present embodiment is essentially identical with structure and the principle of embodiment one, and difference is: in the present embodiment, clamping Structure includes being arranged at the fixture block protruding in the form of a ring inside inserted terminal 1a and is opened in company in the form of a ring outside contiguous block 4a Access slot, fixture block snaps onto in link slot, and the external diameter of contiguous block 4a is corresponding with the internal diameter of inserted terminal 1a, and the outer face of fixture block has There is tapered spigot surface.There is in inserted terminal 1a circular step, circular step relative to fixture block away from the port of inserted terminal 1a, Circular step stretches out outside fixture block.
When mounted, the outer rim of snap ring 2 is resisted against on circular step, and contiguous block 4a extend in inserted terminal 1a, contiguous block 4a front end is along the spigot surface inward on fixture block and is deformed inward contraction, when contiguous block 4a moves to the link slot outside it After relative with fixture block, fixture block snaps onto in link slot, and it is fixed that the front end of contiguous block 4a is pressed on the outer face of snap ring 2 outer rim formation Position.
Specific embodiment described herein is only explanation for example to the utility model spirit.The utility model institute Belong to those skilled in the art to make various modification to described specific embodiment or supplement or use similar Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.

Claims (9)

1. snap joint, including joint body (1), one end of described joint body (1) is inserted terminal (1a), described grafting Being provided with snap ring (2) and internal lining pipe (3) in end (1a), the port of described inserted terminal (1a) is connected with locking cap (4), described Snap ring (2) and internal lining pipe (3) are limited in inserted terminal (1a) by locking cap (4), the outer end self-locking cap of described internal lining pipe (3) (4) center passes through locking cap (4) outward, it is characterised in that described locking cap (4) the inner has the company in circular protrusion Connecing block (4a), described contiguous block (4a) stretches in inserted terminal (1a) and at the lateral wall of contiguous block (4a) and inserted terminal (1a) It is provided with the interface arrangment that contiguous block (4a) can be made to be connected in inserted terminal (1a) between madial wall.
2. snap joint according to claim 1, it is characterised in that described interface arrangment includes being arranged at inserted terminal (1a) annular slot on madial wall (1a1) and be positioned at locking cap (4) contiguous block (4a) outside in bulk protrude clamping Portion (4a1), the Access Division (4a1) on contiguous block (4a) snaps in annular slot (1a1).
3. snap joint according to claim 2, it is characterised in that the external diameter of described contiguous block (4a) is more than inserted terminal (1a) internal diameter of port, the inner face of described contiguous block (4a) has some rear ends to contiguous block (4a) offer lacks Groove (4a2), described short slot (4a2) runs through the sidewall of contiguous block (4a), have inside the port of described inserted terminal (1a) in The spigot surface (1a2) of taper.
4. the snap joint according to Claims 2 or 3, it is characterised in that described annular slot (1a1) is away from inserted terminal (1a) outside the cell wall of the port side that the cell wall of port side stretches out in the close inserted terminal (1a) of annular slot (1a1), described The inner face of snap ring (2) outer rim be resisted against on the cell wall of the port side away from inserted terminal (1a) for the annular slot (1a1), described The inner of contiguous block (4a) be pressed on the outer face of snap ring (2) outer rim.
5. snap joint according to claim 1, it is characterised in that described interface arrangment includes being arranged at inserted terminal (1a) fixture block that protrudes in the form of a ring of inner side and be opened in contiguous block (4a) outside link slot in the form of a ring, described fixture block snaps in In link slot.
6. snap joint according to claim 5, it is characterised in that the external diameter of described contiguous block (4a) and inserted terminal (1a) internal diameter is corresponding, and the inner face of described contiguous block (4a) has some rear ends to contiguous block (4a) offer lacks Groove (4a2), described short slot (4a2) runs through the sidewall of contiguous block (4a), the outer face of described fixture block has tapered Spigot surface.
7. the snap joint according to claim 5 or 6, it is characterised in that in described inserted terminal (1a), there is ring-type Rank, described circular step is relative to fixture block away from the port of inserted terminal (1a), and described circular step stretches out in outside fixture block, institute The inner face of snap ring (2) outer rim stated is resisted against on circular step, and the inner of described contiguous block (4a) is pressed in snap ring (2) outer rim Outer face on.
8. snap joint according to claim 1, it is characterised in that described locking cap (4) the inner has ring-type gear edge (4b) there is outside the inner of, described internal lining pipe (3) annular shoulder (3a), described annular shoulder (3a) and ring-type gear edge (4b) lean.
9. snap joint according to claim 1, it is characterised in that described locking cap (4) and contiguous block (4a) are one Body formula structure, described locking cap (4) is made up of plastic material.
CN201620591517.7U 2016-06-16 2016-06-16 Snap joint Active CN205678318U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620591517.7U CN205678318U (en) 2016-06-16 2016-06-16 Snap joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620591517.7U CN205678318U (en) 2016-06-16 2016-06-16 Snap joint

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Application Number Title Priority Date Filing Date
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020031121A1 (en) * 2018-08-08 2020-02-13 Cochlear Limited Electromagnetic transducer with new specific interface geometries
WO2021068433A1 (en) * 2019-10-12 2021-04-15 台州新三和卫浴股份有限公司 Plastic pipeline quick connector

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020031121A1 (en) * 2018-08-08 2020-02-13 Cochlear Limited Electromagnetic transducer with new specific interface geometries
CN112400328A (en) * 2018-08-08 2021-02-23 科利耳有限公司 Electromagnetic transducer with new specific interface geometry
WO2021068433A1 (en) * 2019-10-12 2021-04-15 台州新三和卫浴股份有限公司 Plastic pipeline quick connector

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20170316

Address after: 317609 Yuhuan County City, Zhejiang province Longxi fishing village

Patentee after: Zhejiang wandekai fluid equipment Polytron Technologies Inc

Address before: Yuhuan County dragon Township fishing village of Taizhou city in Zhejiang province 317609

Patentee before: Zhejiang Wandekai Copper Industries Co., Ltd.