CN105156813B - A kind of oil pipe quick connector and its installation, method for dismounting - Google Patents

A kind of oil pipe quick connector and its installation, method for dismounting Download PDF

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Publication number
CN105156813B
CN105156813B CN201510639888.8A CN201510639888A CN105156813B CN 105156813 B CN105156813 B CN 105156813B CN 201510639888 A CN201510639888 A CN 201510639888A CN 105156813 B CN105156813 B CN 105156813B
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CN
China
Prior art keywords
fittings
snap ring
oil pipe
quick connector
shell fragment
Prior art date
Application number
CN201510639888.8A
Other languages
Chinese (zh)
Other versions
CN105156813A (en
Inventor
黄海岭
尚晓虎
廖少龙
Original Assignee
安徽江淮汽车集团股份有限公司
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Application filed by 安徽江淮汽车集团股份有限公司 filed Critical 安徽江淮汽车集团股份有限公司
Priority to CN201510639888.8A priority Critical patent/CN105156813B/en
Publication of CN105156813A publication Critical patent/CN105156813A/en
Application granted granted Critical
Publication of CN105156813B publication Critical patent/CN105156813B/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00Couplings of the quick-acting type
    • F16L37/08Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking

Abstract

The invention discloses a kind of oil pipe quick connector, including:First fittings body, the second fittings body and snap ring;First fittings body is columnar structured, and it is provided with shoulder hole, the small bore end of shoulder hole and the second joint mates along axis, and the big nose end of shoulder hole is engaged with snap ring;Second fittings body is cylindrical structural, and it includes oil pipe connecting portion, Access Division and plug division;Snap ring is columnar structured, and it is inserted into the first fittings body;The outside wall surface of snap ring is engaged with the big nose end internal face of the first fittings body, and the internal face of snap ring is engaged with the outside wall surface of the second fittings body.This fast plug of oil pipe can effectively reduce die manufacturing cost, and greatly improve the convenience of installation and removal by simplifying structure;Can also be changed simultaneously by structure increases the intensity of quick connector, significantly reduces the fault rate of the fast plug of oil pipe, increases the operating efficiency and service life of the fast plug of oil pipe.

Description

A kind of oil pipe quick connector and its installation, method for dismounting

Technical field

The invention belongs to vehicle fuel feed system technical field, and in particular to a kind of oil pipe quick connector and its installation, Method for dismounting.

Background technology

Fuel oil supply system refers in diesel fuel system, for fuel tank, diesel fuel filter, engine to be entered, returns The pipeline that hydraulic fluid port is connected.In this system, good sealing must be possessed by connecting the fuel pipe of each parts, no Then engine can be caused not start normally, or even fuel leakage occur.At present, heavy truck fuel oil supply system is gradually pushed away The fuel pipe of fast inserting structure is extensively used, structure complexity, manufacturing cost and the convenience of maintenance of quick connector are also deep always It is concerned.

The existing fast inserting structure of oil pipe quick connector 101 and special purpose interface 102 as shown in figure 1, be mainly made up of, fast grafting There are fittings body, system to move back snap ring 103 and sealing ring 104 on first 101, when mounting and dismounting quick connector 101, extruding system moves back snap ring 103, quick connector 101 is engaged or is departed from special purpose interface 102.The quick connector 101 of this structure is not only complicated, mould Has manufacturing cost high;And, it is necessary to which extruding system moves back snap ring 103, for the fuel oil of Large Diameter Pipeline during installation and removal quick connector 101 Extruding force needed for pipe is larger, and it is very inconvenient to mount and dismount;The existing toughness of quick connector 101 is relatively low simultaneously, in extruding When system moves back snap ring 103, fittings body is easily damaged and causes cost of parts to increase.

The content of the invention

It is an object of the invention to provide a kind of oil pipe quick connector and its installation, method for dismounting, by quick connector Overall structure is redesigned, and reduces the complexity of quick connector, so as to solve quick connector die manufacturing cost height, install The problem of inconvenience equal with dismounting;Can also be changed simultaneously by structure increases the intensity of quick connector, so as to solve fast grafting The problem of fittings body of head is easily damaged and causes parts cost increase.

To achieve the above object, the invention provides following technical scheme:

A kind of oil pipe quick connector, including:First fittings body, the second fittings body and snap ring;

First fittings body is columnar structured, and it is provided with shoulder hole along axis, the small bore end of the shoulder hole with The second joint mates, the big nose end of the shoulder hole is engaged with the snap ring;

Second fittings body is cylindrical structural, and it includes oil pipe connecting portion, Access Division and plug division;The oil pipe connects One end of socket part is socketed with oil pipe, and the other end is connected with the Access Division;The Access Division is arranged on second fittings body Middle part, and be engaged with the snap ring;Described plug division one end is connected with Access Division, the other end and first fittings body Small bore end be engaged;

The snap ring is columnar structured, and it is inserted into first fittings body;The outside wall surface of the snap ring with it is described The big nose end internal face of first fittings body is engaged, and the outside wall surface of the internal face of the snap ring and second fittings body matches Close.

Preferably, first annular groove is provided with the big nose end inwall of first fittings body, it is described first annular recessed Groove and first fittings body are coaxial.

Preferably, multiple second annular grooves, second ring are provided with the small bore end inwall of first fittings body Connected in star and first fittings body are coaxial.

Preferably, the diameter of the oil pipe connecting portion is more than the diameter of the plug division, and the diameter of the Access Division is more than The diameter of the oil pipe connecting portion.

Preferably, multiple O-ring seals, the O-ring seal and second joint are provided with the plug division Body is coaxial, and the O-ring seal is engaged with second annular groove.

Preferably, the snap ring includes annular protrusion, shell fragment and baffle plate, and the annular protrusion is arranged on the snap ring In outside wall surface, and with the first annular fit depressions;The shell fragment is arranged on the lower section of the annular protrusion, and to described The axis direction bending of snap ring;The baffle plate setting is in the end of the snap ring, and the baffle plate is big with first fittings body Hole end surface is engaged.

Preferably, the shell fragment at least two, is evenly distributed on the lower section of the annular protrusion, the shell fragment with it is described Access Division phase clamping.

A kind of installation method of oil pipe quick connector, comprises the following steps:

First, the snap ring is loaded to the big nose end of first fittings body, the annular protrusion described in the push-on process is arrived During up to the first annular groove, the annular protrusion be engaged with the annular groove to the snap ring carry out it is spacing, simultaneously The big nose end outermost end face of the baffle plate and first fittings body leans;

Secondly, second fittings body is loaded to the snap ring, promotes second fittings body to cause the grafting Portion is moved to the small bore end of first fittings body, and the shell fragment is constantly compressed in the Access Division during promotion, until The shell fragment crosses the Access Division;

Again, the small bore end of second fittings body to first fittings body is continued to press on, when the shell fragment is crossed Resilience in the Access Division is backward, to prevent second fittings body from deviating from, when the O-ring seal reaches second ring During connected in star, the O-ring seal is engaged spacing to second fittings body progress with second annular groove.

A kind of method for dismounting of oil pipe quick connector, comprises the following steps:

First, removal tool special is inserted into the space between the oil pipe connecting portion and the snap ring, promotes described Removal tool special is inwardly moved, until the removal tool special is by the inwall on the shell fragment top to the snap ring;

Secondly, second fittings body is pulled out, the now O-ring seal is from second annular groove Abjection, pulls on second fittings body, after the shell fragment is crossed in the Access Division, the natural resilience of the shell fragment, so as to In second fittings body abjection;

Again, the baffle plate is pulled out, now the annular protrusion is deviate from from the first annular groove, continued The snap ring is pulled to deviate from out of big nose end of first fittings body.

The beneficial effects of the present invention are:

A kind of oil pipe quick connector and its installation, method for dismounting of the present invention, is entered by the overall structure to quick connector Row is redesigned, and quick connector is divided into the first fittings body, three parts of the second fittings body and snap ring, wherein the first fittings body edge Axis is provided with shoulder hole, and the big nose end using snap ring and the first fittings body is coordinated, and can make it that the second fittings body can be with More easily be inserted into the first fittings body, due on snap ring be provided with annular protrusion and baffle plate, using annular protrusion with The first annular fit depressions set on first fittings body, can be effectively spacing to snap ring progress, and baffle plate can be with ring Shape projection is engaged, and prevents snap ring from deviating from from the big nose end of the first fittings body;It is additionally provided with addition on snap ring aduncate Catch, is engaged using the Access Division on catch and the second fittings body, after can crossing catch in Access Division, utilizes the bullet of catch Elastic recoil carrys out the fittings body of clamping second, so as to ensure the stable connection between the first fittings body and the second fittings body, prevents Two fittings bodies are surprisingly deviate from;Multiple O-ring seals are provided with the plug division of the second fittings body simultaneously, ring packing is utilized Enclose the second annular groove with being arranged in the small bore end of the first fittings body to be engaged, the second fittings body can not only be limited Position, and can also effectively increase the overall sealing of the fast plug of oil pipe, so as to effectively prevent fuel oil from the first fittings body And second seepage between fittings body.This fast plug of oil pipe can effectively reduce die manufacturing cost by simplifying structure, And greatly improve the convenience of installation and removal;Can also be changed simultaneously by structure increases the intensity of quick connector, greatly Width reduces the fault rate of the fast plug of oil pipe, increases the operating efficiency and service life of the fast plug of oil pipe.

Brief description of the drawings

Next the specific embodiment of the present invention will be described in further detail with reference to accompanying drawing, wherein:

Fig. 1 is the fast plug structure chart of oil pipe of prior art;

Fig. 2 is the fast plug profile of oil pipe of the embodiment of the present invention;

Fig. 3 is the first fittings body profile of the embodiment of the present invention;

Fig. 4 is the second fittings body structure chart of the embodiment of the present invention;

Fig. 5 is the Snap ring structure figure of the embodiment of the present invention;

Fig. 6 is the snap ring profile of the embodiment of the present invention;

Fig. 7 is the removal tool special structure chart of the embodiment of the present invention.

Marked in upper figure:

Prior art

101st, quick connector 102, special purpose interface 103, system move back snap ring

104th, sealing ring

The present invention

1st, the first fittings body 2, the second fittings body 3, snap ring

11st, first annular groove 12, the second annular groove

21st, oil pipe connecting portion 22, Access Division 23, plug division

24th, O-ring seal

31st, annular protrusion 32, shell fragment 33, baffle plate

Embodiment

Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.

As shown in Figures 2 to 6, a kind of oil pipe quick connector of the invention, including:First fittings body 1, the second fittings body 2 With snap ring 3;First fittings body 1 is columnar structured, and it is provided with shoulder hole, the small bore end of shoulder hole and the second joint along axis Body 2 is engaged, and the big nose end of shoulder hole is engaged with snap ring 3;Second fittings body 2 is cylindrical structural, and it includes oil pipe connection Portion 21, Access Division 22 and plug division 23;One end of oil pipe connecting portion 21 is socketed with fuel pipe, and the other end is connected with Access Division 22 Connect;Access Division 22 is arranged on the middle part of the second fittings body 2, and is engaged with snap ring 3;The one end of plug division 23 is connected with Access Division 22 Connect, the other end is engaged with the small bore end of the first fittings body 1;Snap ring 3 is columnar structured, and it is inserted into the first fittings body 1; The outside wall surface of snap ring 3 is engaged with the big nose end internal face of the first fittings body 1, the internal face of snap ring 3 and the second fittings body 2 it is outer Wall is engaged.A kind of oil pipe quick connector of the present invention, is redesigned by the overall structure to quick connector, will be fast Connection-peg is divided into the first fittings body 1, the second fittings body 2 and these three parts of snap ring 3, wherein the first fittings body 1 is set along axis There is shoulder hole, the big nose end using snap ring 3 and the first fittings body 1 is coordinated, the second fittings body 2 can be allowd more just Prompt is inserted into the first fittings body 1, due to being provided with annular protrusion 31 and baffle plate 33 on snap ring 3, utilizes annular protrusion 31 It is engaged with the first annular groove 11 set on the first fittings body 1, spacing, and baffle plate 33 can be effectively carried out to snap ring 3 It can be engaged with annular protrusion 31, prevent snap ring 3 from deviating from from the big nose end of the first fittings body 1;Also set up in addition on snap ring 3 There is aduncate catch 32, be engaged, can be got in Access Division 22 using the Access Division 22 on the fittings body 2 of catch 32 and second Cross after catch 32, using the elastic recoil of catch 32 come the second fittings body of clamping 2, so as to ensure that the first fittings body 1 and second connects Stable connection between head body 2, prevents the unexpected abjection of the second fittings body 2;Set simultaneously on the plug division 23 of the second fittings body 2 Multiple O-ring seals 24 have been put, O-ring seal 24 and the second annular being arranged in the small bore end of the first fittings body 1 is utilized Groove 12 is engaged, and not only the second fittings body 2 can be carried out spacing, and it is overall effectively to increase the fast plug of oil pipe Sealing, so as to effectively prevent fuel oil seepage between the first fittings body 1 and the second fittings body 2.This oil pipe is patched soon Head can effectively reduce die manufacturing cost, and greatly improve the convenience of installation and removal by simplifying structure;Together When can also be changed by structure and increase the intensity of quick connector, significantly reduce the fault rate of the fast plug of oil pipe, increase oil Manage the operating efficiency and service life of fast plug.

As shown in figure 3, being provided with first annular groove 11, first annular groove on the big nose end inwall of the first fittings body 1 11 is coaxial with the first fittings body 1;Multiple second annular grooves 12, the second ring are provided with the small bore end inwall of first fittings body 1 Connected in star 12 and the first fittings body 1 are coaxial.First annular groove 11 primarily to snap ring 3 is carried out it is spacing, when snap ring 3 is installed When on to the first fittings body 1, on snap ring 3 set annular protrusion 31 during propulsion gradually with first annular groove 11 Coincide, and when annular protrusion 31 and first annular groove 11 are completely superposed, you can snap ring 3 is fixed on corresponding position On, so as to yes will not deviate from from the first fittings body 1 snap ring 3.Similarly, the second annular groove 12 is primarily to second is connect Head body 2 carries out spacing, and in order to ensure that the second fittings body 2 has enough intensity, therefore the thickness of the second fittings body 2 is larger, weight Amount is also relatively heavy, after the small bore end of the first fittings body 1 is being inserted in the plug division 23 on the second fittings body 2, easily because weight The influence of power and produce movement, deviate from so as to easily cause the second fittings body 2 from the first fittings body 1, and utilize second annular Groove 12 is coordinated with the O-ring seal 24 set on plug division 23, then effectively the second fittings body 2 can be limited Position, so as to ensure the positioning accuracy of the second fittings body 2, and increases the bonding strength of the second fittings body 2.

Figure 4, it is seen that on the second fittings body 2, the diameter of oil pipe connecting portion 21 is more than the diameter of plug division 23, And the diameter of Access Division 22 is more than the diameter of oil pipe connecting portion 21.Oil pipe connecting portion 21 is mainly used in the connection of oil pipe, in order to protect The enough fuel pressure of card, in the range of structure permission, the amplification that the diameter of oil pipe connecting portion 21 should be as far as possible;And plug division 23 need the small bore end with the first fittings body 1 to be coordinated, while also needing to the fuel oil for conveying oil pipe connecting portion 21 Export as soon as possible, therefore plug division 23 does not need only to have certain intensity, and also the diameter of plug division 23 needs to be less than oil pipe Connecting portion 21, so can just be led from the fuel oil that tubing transmission comes by the less plug division 23 of diameter with bigger pressure Go out;Other Access Division 22 is mainly used in the second fittings body 2 being firmly fixed in the first fittings body 1, therefore Access Division 22 Diameter is needed to be more than oil pipe connecting portion 21, and so after Access Division 22 is by the shell fragment 32 on snap ring 3, shell fragment 32 can just be utilized Second fittings body 2 is clamped in the first fittings body 1 by screen resilience, so as to ensure between the second fittings body 2 and the first fittings body 1 Bonding strength and compactness.

In addition, it can also be seen that being additionally provided with multiple O-ring seals 24, ring packing on plug division 23 from Fig. 4 Circle 24 is coaxial with the second fittings body 2, and O-ring seal 24 is engaged with the second annular groove 12.O-ring seal 24 is mainly Second fittings body 2 is carried out it is spacing, while prevent fuel oil from the gap between the small bore end of the fittings body 1 of plug division 23 and first Leakage.According to the intensity of the pressure of fuel oil and the first fittings body 1, multiple O-ring seals 24 can be set, it is excellent in the present invention Choosing is using two O-ring seals 24, two second annulars that two small bore ends of 24 and first fittings body of O-ring seal 1 are set Groove 12 is engaged, and can not only ensure that the second fittings body 2 can be carried out effectively after the first fittings body 1 is inserted spacing, and And the being completely embedded property between the second fittings body 2 and the first fittings body 1 can also be increased, so as to effectively prevent fuel oil from producing to let out Leakage, increases the service life of oil pipe quick connector.

As shown in Figure 5 and Figure 6, snap ring 3 includes annular protrusion 31, shell fragment 32 and baffle plate 33, and annular protrusion 31 is arranged on In the outside wall surface of snap ring 3, and it is engaged with first annular groove 11;Shell fragment 32 is arranged on the lower section of annular protrusion 31, and to card The axis direction bending of ring 3;Baffle plate 33 is arranged on the end of snap ring 3, and the big hole end surface of the fittings body 1 of baffle plate 33 and first matches Close.Annular protrusion 31 be mainly used in carrying out the big nose end of snap ring 3 and the first fittings body 1 it is spacing, from fig. 6 it can be seen that ring The cross-section structure of shape projection 31 employs arcuate structure, so can be in order to annular protrusion 31 is caught in first annular groove 11 In, and it is easy to extraction in dismounting;And shell fragment 32 is mainly used in the second fittings body 2 being clamped in the first fittings body 1, shell fragment 32 position is determined by the position of annular protrusion 31 and Access Division 22, should ensure annular protrusion 31 and first annular groove 11 Can be fitted close snap ring 3 is carried out it is spacing, while also to ensure that shell fragment 32 can be engaged clamping second with Access Division 22 and connect Head body 2, in order to ensure the intensity of shell fragment 32, is preferred to use shell fragment 32 at least two, and be evenly distributed on ring in the present invention The lower section of shape projection 31, when Access Division 22 is after through shell fragment 32, shell fragment 32 can be in two ends linear fashion or three end right angles Second fittings body 2 is clamped in the first fittings body 1 by triangle manner, so as to simplify the attachment structure of oil pipe quick connector Meanwhile, the bonding strength between the first fittings body 1 of effective increase and the second fittings body 2 is easy to the installation of oil pipe quick connector And dismounting, the fault rate of the fast plug of oil pipe is significantly reduced, increases the operating efficiency and service life of the fast plug of oil pipe.And Baffle plate 33 can be engaged with annular protrusion 31 second fittings body 2 is carried out it is spacing, when annular protrusion 31 be caught in it is first annular After groove 11, big hole end surface of the baffle plate 33 just with the first fittings body 1 is in contact, the process that can be thus inputted in fuel oil In, snap ring 3 can be fitted close with the second fittings body 2, will not be because fuel pressure either vibrates and produces loosening, effectively Raising oil pipe quick connector service efficiency and safety in utilization.

A kind of installation method of oil pipe quick connector of the present invention, comprises the following steps:

First, snap ring 3 is loaded to the big nose end of the first fittings body 1, when annular protrusion 31 reaches the first ring in push-on process During connected in star 11, annular protrusion 31 be engaged with annular groove 11 snap ring 3 is carried out it is spacing, while the fittings body of baffle plate 33 and first 1 big nose end outermost end face leans;

Secondly, the second fittings body 2 is loaded to snap ring 3, promotes the second fittings body 2 to cause plug division 23 to the first joint The small bore end movement of body 1, the constantly compression shell fragment 32 of Access Division 22 during promotion, until shell fragment 32 crosses Access Division 22;

Again, the small bore end of the second fittings body 2 to the first fittings body 1 is continued to press on, when shell fragment 32 crosses Access Division 22 Resilience in backward, to prevent the second fittings body 2 from deviating from, when O-ring seal 24 reaches the second annular groove 12, ring packing Circle 24 be engaged with the second annular groove 12 second fittings body 2 is carried out it is spacing.

The installation method of above-mentioned oil pipe quick connector, is not only effectively reduced the installation steps of oil pipe quick connector, and And by increasing the cooperation between the fittings body 1 of snap ring 3 and first and the second fittings body 2, can effectively increase the fast grafting of oil pipe The bonding strength and being completely embedded property of head, effectively reduce die manufacturing cost, and greatly improve installation convenience.

A kind of method for dismounting of oil pipe quick connector of the present invention, comprises the following steps:

First, removal tool special is inserted into the space between oil pipe connecting portion 21 and snap ring 3, promotes special dismounting work Tool inwardly motion, until removal tool special pushes up shell fragment 32 to the inwall of snap ring 3;

Secondly, the second fittings body 2 is pulled out, now O-ring seal 24 is deviate from from the second annular groove 12, after It is continuous to pull the second fittings body 2, after shell fragment 32 are crossed in Access Division 22, the natural resilience of shell fragment 32, in order to which the second fittings body 2 is de- Go out;

Again, baffle plate 33 is pulled out, now annular protrusion 31 is deviate from from first annular groove 11, pulls on card Ring 3 is deviate from out of big nose end of the first fittings body 1.

In order to quickly be dismantled the second fittings body 2 from the first fittings body 1, it is preferred to use in the present invention Removal tool special, it can be seen from figure 7 that removal tool special rolled into by iron plate it is columnar structured, and in cylindrical shape An opening with axis in the same direction is provided with structure, during dismounting, removal tool special is inserted into oil pipe connecting portion Space between 21 and snap ring 3, only need to promote shell fragment 32 to cross Access Division 22, you can by the second fittings body 2 from the first fittings body Deviate from 1, the removal efficiency of oil pipe quick connector can be substantially improved using removal tool special, so that it is fast to effectively improve oil pipe The cleaning of connection-peg and maintenance efficiency.

Above according to diagram embodiment be described in detail the present invention construction, feature and action effect, it is described above only For presently preferred embodiments of the present invention, but the present invention is not to limit practical range, every conception institute according to the present invention shown in drawing The change of work, or the equivalent embodiment of equivalent variations is revised as, still without departing from specification with illustrating during covered spirit, Should be within the scope of the present invention.

Claims (7)

1. a kind of oil pipe quick connector, it is characterised in that including:First fittings body, the second fittings body and snap ring;
First fittings body is columnar structured, and it is provided with shoulder hole along axis, the small bore end of the shoulder hole with it is described Second joint mates, the big nose end of the shoulder hole is engaged with the snap ring;
Second fittings body is cylindrical structural, and it includes oil pipe connecting portion, Access Division and plug division;The oil pipe connecting portion One end be socketed with oil pipe, the other end is connected with the Access Division;The Access Division is arranged in second fittings body Portion, and be engaged with the snap ring;Described plug division one end is connected with Access Division, and the other end is small with first fittings body Nose end is engaged;
The snap ring is columnar structured, and it is inserted into first fittings body;The outside wall surface of the snap ring and described first The big nose end internal face of fittings body is engaged, and the internal face of the snap ring is engaged with the outside wall surface of second fittings body;
First annular groove, the first annular groove and described first are provided with the big nose end inwall of first fittings body Fittings body is coaxial;
The snap ring includes annular protrusion, shell fragment and baffle plate, and the annular protrusion is arranged in the outside wall surface of the snap ring, and With the first annular fit depressions;The shell fragment is arranged on the lower section of the annular protrusion, and to the axis of the snap ring Direction is bent;The baffle plate setting matches in the end of the snap ring, the big hole end surface of the baffle plate and first fittings body Close.
2. oil pipe quick connector according to claim 1, it is characterised in that on the small bore end inwall of first fittings body Multiple second annular grooves are provided with, second annular groove and first fittings body are coaxial.
3. oil pipe quick connector according to claim 2, it is characterised in that the diameter of the oil pipe connecting portion is more than described The diameter of plug division, the diameter of the Access Division is more than the diameter of the oil pipe connecting portion.
4. oil pipe quick connector according to claim 3, it is characterised in that multiple annulars are provided with the plug division close Seal, the O-ring seal and second fittings body are coaxial, and the O-ring seal matches with second annular groove Close.
5. oil pipe quick connector according to claim 1, it is characterised in that the shell fragment at least two, is uniformly distributed In the lower section of the annular protrusion, the shell fragment and the Access Division phase clamping.
6. the installation method of the oil pipe quick connector according to any one of claim 2 to 4, it is characterised in that including as follows Step:
First, the snap ring is loaded to the big nose end of first fittings body, the annular protrusion described in the push-on process reaches institute When stating first annular groove, the annular protrusion and the first annular fit depressions are spacing to snap ring progress, simultaneously The big nose end outermost end face of the baffle plate and first fittings body leans;
Secondly, second fittings body is loaded to the snap ring, promote second fittings body cause the plug division to The small bore end movement of first fittings body, the shell fragment is constantly compressed in the Access Division during promotion, until described Shell fragment crosses the Access Division;
Again, the small bore end of second fittings body to first fittings body is continued to press on, when the shell fragment cross it is described Resilience in Access Division is backward, to prevent second fittings body from deviating from, when O-ring seal arrival second annular is recessed During groove, the O-ring seal is engaged spacing to second fittings body progress with second annular groove.
7. the method for dismounting of the oil pipe quick connector according to any one of claim 2 to 4, it is characterised in that including as follows Step:
First, removal tool special is inserted into the space between the oil pipe connecting portion and the snap ring, promoted described special Extracting tool is inwardly moved, until the removal tool special is by the inwall on the shell fragment top to the snap ring;
Secondly, second fittings body is pulled out, the now O-ring seal is deviate from from second annular groove, Second fittings body is pulled on, after the shell fragment is crossed in the Access Division, the natural resilience of the shell fragment, in order to described Second fittings body is deviate from;
Again, the baffle plate is pulled out, now the annular protrusion is deviate from from the first annular groove, pulls on The snap ring is deviate from out of big nose end of first fittings body.
CN201510639888.8A 2015-09-29 2015-09-29 A kind of oil pipe quick connector and its installation, method for dismounting CN105156813B (en)

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CN201510639888.8A CN105156813B (en) 2015-09-29 2015-09-29 A kind of oil pipe quick connector and its installation, method for dismounting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510639888.8A CN105156813B (en) 2015-09-29 2015-09-29 A kind of oil pipe quick connector and its installation, method for dismounting

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CN105156813A CN105156813A (en) 2015-12-16
CN105156813B true CN105156813B (en) 2017-11-03

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CN107676558A (en) * 2017-11-22 2018-02-09 浙江邝记汽车零部件有限公司 A kind of blast pipe of dismountable flange disk
CN108799668A (en) * 2018-07-14 2018-11-13 唐珊珊 A kind of mounting assembly being connected with pipe fitting convenient for bellows
CN109435154B (en) * 2018-10-11 2020-10-16 浙江蓝域智能科技有限公司 Auxiliary dismounting device for oil pipe joint of mold

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