CN106090492A - L-shaped urea pipe quick joint for automobile - Google Patents
L-shaped urea pipe quick joint for automobile Download PDFInfo
- Publication number
- CN106090492A CN106090492A CN201610601280.0A CN201610601280A CN106090492A CN 106090492 A CN106090492 A CN 106090492A CN 201610601280 A CN201610601280 A CN 201610601280A CN 106090492 A CN106090492 A CN 106090492A
- Authority
- CN
- China
- Prior art keywords
- hole
- connecting tube
- male contact
- famale connector
- fastener
- 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.)
- Granted
Links
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 92
- 239000004202 carbamide Substances 0.000 title claims abstract description 48
- 230000033001 locomotion Effects 0.000 claims abstract description 7
- 235000013877 carbamide Nutrition 0.000 claims description 44
- 239000004033 plastic Substances 0.000 claims description 37
- 229920003023 plastic Polymers 0.000 claims description 37
- 230000008676 import Effects 0.000 claims description 11
- 238000007373 indentation Methods 0.000 claims description 10
- 238000010030 laminating Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 244000050510 Cunninghamia lanceolata Species 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/12—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members
- F16L37/1225—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members using a retaining member the extremities of which, e.g. in the form of a U, engage behind a shoulder of both parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Combustion & Propulsion (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
Abstract
An L-shaped urea tube quick joint for an automobile comprises a male joint, a clamping piece and a female joint, wherein the male joint comprises a male joint connecting tube, a urea inlet connecting part, an annular plate and an annular bulge; the handle part is provided with a waist-shaped groove, and the length direction of the waist-shaped groove is arranged along the movement direction of the fastener; the locking part comprises a step, an elongated plate and a positioning column, a step through hole is formed in the center of the step, and a cavity which is used for the clamping part to penetrate through and can move left and right is formed in the step along the left and right directions. The invention provides an L-shaped urea pipe quick connector for an automobile, which is easy to assemble and disassemble and reliable in clamping, and has a reliable signal for judging whether the male connector is inserted in place.
Description
Technical field
The invention belongs to auto parts machinery field, especially relate to a kind of automobile L-type urea tube snap joint.
Background technology
Various pipelines in automobile are the most, have fuel pipe, urea pipe, coolant pipeline etc..In order to assembling,
Can be connect by pipeline than faster during maintenance, the commonly used snap joint of present automobile needs the pipeline connection connected by two
Knot is together.Automobile engine uses urea for vehicle, it is possible to carry out vent gas treatment, reduce environmental pollution.In order to be able to compare just
Profit by urea for vehicle solution injection engine, need to use urea tube snap joint.Existing urea pipe snap joint is adopted more
With utilizing the principle of the of short duration deformation of plastic clasp, male contact is extracted or injects inside famale connector, by of short duration for plastic hoop change
During shape, the biggest power need to be used.Additionally use listen the sound of " click " to judge whether male contact is inserted into position, but because dress
Joining workshop, maintenance shop the most noisy, it is the most unreliable that listening judges whether male contact is inserted into the method for position.And if male contact
It is not inserted into position, causes urea liquid to leak, it will corrosion auto-parts, cause severe consequence.
Summary of the invention
In order to overcome existing urea pipe snap joint mounting or dismounting laborious and male contact whether to be inserted into an acoustical signal unreliable
Problem, the present invention provides that a kind of male contact mounting or dismounting are easy, clamping reliable, and whether male contact is inserted into the reliable automobile of a signal
With L-type urea tube snap joint.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of automobile L-type urea tube snap joint, including male contact, fastener and famale connector, described male contact is upper
Under through hollow structure, described male contact includes male contact connecting tube, carbamide import connecting portion, annular slab and annular protrusion,
The upper end of described male contact connecting tube is provided with described carbamide import connecting portion, and described annular slab is sleeved on described male contact connecting tube
Middle and upper part, described annular protrusion is positioned at the lower section of annular slab and is sleeved on the middle and lower part of described male contact connecting tube；Described annular
The external diameter of plate is more than the external diameter of described annular protrusion；
Described famale connector is hollow structure, and described famale connector includes that famale connector connecting tube, lock part and carbamide outlet connect
Portion, the upper end of described famale connector connecting tube is provided with described lock part, and the lower end of described famale connector connecting tube is provided with described carbamide and goes out
Mouth connecting portion；
Described fastener includes Access Division and handle portion, and described Access Division has connection through hole, and described connection through hole is far
Be provided with semicircular indentations from the side in handle portion, the internal diameter of described semicircular indentations is identical with the external diameter of male contact connecting tube；Institute
Stating handle portion and be provided with waist type groove, the length direction of waist type groove is arranged along the direction of motion of fastener；
Described lock part includes that step, long shaped plate and locating dowel, the center of described step have a step through-hole, described
Rank along left and right directions be provided with in order to fastener through and can the cavity of side-to-side movement, described cavity includes left opening and in order to partly
The right opening that the Access Division of circumferential notch side is stretched out, described long shaped plate is arranged on the left opening part of cavity and is fixed on described sky
On chamber, the left part end face of described long shaped plate is provided with described locating dowel；
The lower end of described male contact connecting tube sequentially passes through step through-hole from top to bottom, connects through hole and famale connector connecting tube
Centre bore, described annular protrusion is positioned on the step of described step through-hole, and described fastener is positioned at the upper of described annular protrusion
Side, described annular slab is positioned at the top of described step and fits with step, and the sky of lock part is stretched in the Access Division of described fastener
Intracavity, and connect through hole connect with the centre bore of step through-hole, famale connector connecting tube, described locating dowel is positioned at described waist type groove
And with the arc tips clamping on waist type groove, described semicircular indentations is connected on the outer wall of described male contact connecting tube.
Further, the Access Division of described fastener is arc away from the side in handle portion, and described connection through hole is square, institute
Stating handle portion is inverted T shape.
Further, described carbamide import connecting portion and carbamide outlet connections are equipped with annular anti-skidding projection.
Further, the centre bore of described famale connector connecting tube includes hole, mesopore and lower opening the most successively, described
The internal diameter in upper hole is less than the internal diameter of described step through-hole, and the internal diameter in described upper hole is identical with the internal diameter of described lower opening, described mesopore
Internal diameter less than the internal diameter in described upper hole, the internal diameter of described mesopore is identical with the external diameter of male contact connecting tube.
Further, the lower end of described male contact connecting tube is provided with reducing.
Further, between described upper hole and described step through-hole, junction is additionally provided with block, and described block is positioned at described
The lower section of annular protrusion, described block is provided with two, and two blocks are arranged symmetrically in both sides before and after the upper end in hole.
Further, in described upper hole, be additionally provided with black box, described black box include the first plastic hoop, rubber ring and
Second plastic hoop, described second plastic hoop is positioned at the lower section of described block and fits with the lower surface of block, described rubber ring position
In the lower section of the second plastic hoop, described first plastic hoop is positioned at the lower section of described rubber ring；Described first plastic hoop, rubber ring,
Second plastic hoop is all sleeved in described male contact connecting tube.
The present invention compared with prior art, has the advantages that
1. making full use of the elasticity of plastic hoop and rubber ring, the block being arranged on famale connector by black box leads to step
Between hole, so inserting with withdrawal process when male contact, black box position will not be moved so that seals reliable；
2. the Access Division of fastener drags in the step of famale connector so that during male contact locking state, outside Access Division
Side semicircle is in famale connector, and during male contact releasing orientation, an outside semicircle part for Access Division is in outside famale connector, and this becomes sun
The very important visual signal of connector status, at noisy assembling factory's listening, this judges whether that insertion puts in place will more may be used than existing
Lean on；
3. the design of fastener drawing and pulling type is pinched plastic hoop than the dependence finger of transmission to make it deform more laborsaving；
4. the waist type groove of fastener is simple and practical, male contact locking with loosen during, convenient, flexible.
Accompanying drawing explanation
Fig. 1 is the front view of male contact.
Fig. 2 is the sectional view of male contact.
Fig. 3 is the front view of fastener.
Fig. 4 is the axis side view such as grade of fastener.
Fig. 5 is the axis side view such as grade of famale connector.
Fig. 6 is the famale connector sectional view along A-A.
Fig. 7 is the famale connector sectional view along B-B.
Fig. 8 is the axis side view such as grade of the first plastic hoop.
Fig. 9 is the axis side view such as grade of rubber ring.
Figure 10 is the axis side view such as grade of the second plastic hoop.
Figure 11 is the state diagram that male contact is snapped that part loosens.
Figure 12 is that Figure 11 turns clockwise the state diagram of 180 °.
Figure 13 is the sectional view of D-D in Figure 12.
Figure 14 is the state diagram that male contact is snapped part clamping.
Figure 15 is that Figure 14 turns clockwise the state diagram of 180 °.
Figure 16 is the sectional view of C-C in Figure 15.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings.
With reference to Fig. 1～Figure 16, a kind of automobile L-type urea tube snap joint, including male contact 1, fastener 2 and famale connector
3, described male contact 1 is the hollow structure of up/down perforation, and described male contact 1 includes male contact connecting tube, carbamide import connecting portion
1-1, annular slab 1-2 and annular protrusion 1-3, the upper end of described male contact connecting tube is provided with described carbamide import connecting portion 1-1, institute
Stating annular slab 1-2 and be sleeved on the middle and upper part of described male contact connecting tube, described annular protrusion 1-3 is positioned at the lower section of annular slab 1-2
It is sleeved on the middle and lower part of described male contact connecting tube；The external diameter of the described annular slab 1-2 external diameter more than described annular protrusion 1-3；
Described famale connector 3 is hollow structure, and described famale connector includes that famale connector connecting tube, lock part and carbamide outlet connect
Portion 3-9, the upper end of described famale connector connecting tube is provided with described lock part, and the lower end of described famale connector connecting tube is provided with described carbamide
Outlet connections 3-9；
Described fastener 2 includes Access Division and handle portion, and described Access Division has connection through hole, and described connection through hole is far
Be provided with semicircular indentations from the side in handle portion, the internal diameter of described semicircular indentations is identical with the external diameter of male contact connecting tube；Institute
Stating handle portion and be provided with waist type groove, the length direction of waist type groove is arranged along the direction of motion of fastener 2；
Described lock part includes that step 3-4, long shaped plate 3-5 and locating dowel 3-6, the center of described step 3-4 have platform
Rank through hole, described step 3-4 along left and right directions be provided with in order to fastener through and can the cavity 3-7 of side-to-side movement, described sky
Chamber 3-7 includes that the right opening that left opening and the Access Division in order to semicircular indentations side are stretched out, described long shaped plate 3-5 are arranged on sky
The left opening part in chamber is also fixed on described cavity 3-7, and the left part end face of described long shaped plate 3-5 is provided with described locating dowel 3-6；
The lower end of described male contact connecting tube sequentially passes through step through-hole from top to bottom, connects through hole and famale connector connecting tube
Centre bore, described annular protrusion 1-3 is positioned on the step 3-13 of described step through-hole, and described fastener 2 is positioned at described annular
The top of protruding 1-3, described annular slab 1-2 is positioned at the top of described step 3-4 and fits with step 3-4, described fastener 2
Access Division is stretched in the cavity 3-7 of lock part, and connection through hole connects with the centre bore of step through-hole, famale connector connecting tube, institute
State locating dowel 3-6 be positioned at described waist type groove and with the arc tips clamping on waist type groove, described semicircular indentations is connected to described
On the outer wall of male contact connecting tube.
Further, the Access Division of described fastener 2 is arc away from the side in handle portion, and described connection through hole is square,
Described handle portion is inverted T shape.
Further, described carbamide import connecting portion 1-1 and carbamide outlet connections 3-9 is equipped with annular anti-skidding convex
Rise.
Further, the centre bore of described famale connector connecting tube includes hole, mesopore and lower opening the most successively, described
The internal diameter in upper hole is less than the internal diameter of described step through-hole, and the internal diameter in described upper hole is identical with the internal diameter of described lower opening, described mesopore
Internal diameter less than the internal diameter in described upper hole, the internal diameter of described mesopore is identical with the external diameter of male contact connecting tube.
Further, the lower end of described male contact connecting tube is provided with reducing.
Further, between described upper hole and described step through-hole, junction is additionally provided with block, and described block is positioned at described
The lower section of annular protrusion 1-3, described block is provided with two, and two blocks are arranged symmetrically in both sides before and after the upper end in hole.
Further, being additionally provided with black box in described upper hole, described black box includes the first plastic hoop 4-1, rubber
Ring 4-2 and the second plastic hoop 4-3, described second plastic hoop 4-3 are positioned at the lower section of described block and fit with the lower surface of block,
Described rubber ring 4-2 is positioned at the lower section of the second plastic hoop 4-3, and described first plastic hoop 4-1 is positioned under described rubber ring 4-2
Side；Described first plastic hoop 4-1, rubber ring 4-2, the second plastic hoop 4-3 are all sleeved in described male contact connecting tube.
As shown in Figure 1 and Figure 2, the male contact connecting tube of described male contact 1 be an external diameter be 1cm, wall thickness be the short of 1mm
Plastic tube, the upper end of short plastic tube is the carbamide import connecting portion 1-1 of " Cunninghamia lanceolata (Lamb.) Hook. " type, and the carbamide import of described " Cunninghamia lanceolata (Lamb.) Hook. " type connects
Portion 1-1 is made up of three hollow round table and a hollow circuit cylinder, is used for connecting nylon tube, and three hollow round table are annular
Anti-skidding projection；In the middle part of male contact, position on the upper side is the annular slab 1-2 of a sub-circular, and in the middle part of male contact, position on the lower side is one
The annular protrusion 1-3 that thickness is the least, described only big than the external diameter of the male contact connecting tube 3mm of annular protrusion 1-3 external diameter, annular protrusion
1-3 edge carries out fillet process.
As shown in Figure 3, Figure 4, the Access Division of described fastener 2 is by rectangle 2-3 and the large semi-circular 2-1 being relatively large in diameter
Combination inside are hollowed out, and thickness is 5mm, and the part that inside hollows out is smaller part circle 2-2 and the group of rectangle 2-4 that diameter is less
Closing, described large semi-circular 2-1 is concentric with described smaller part circle 2-2；Rectangle 2-4 is connection through hole, and smaller part circle 2-2 is half
Circumferential notch；The i.e. handle portion in the side away from large semi-circular 2-1, is provided with a waist type groove, and described waist type groove is by justifying 2-6, circle
2-9 and a little rectangle 2-8 composition, justify 2-6, justify the center of circle of 2-9 in a distance, and wherein the diameter of two circle 2-6,2-9 is big
In the width of this rectangle 2-8, be respectively arranged with a rectangle hollowing out 2-5 i.e. handle portion at handle portion monosymmetric is inverted T shape, 2-5 with
Handle body 2-7 constitutes the handle portion of fastener 2.
Described fastener 2 is arranged in the cavity of step 3-4 of famale connector 3, the upper and lower surface of fastener 2 respectively with step
The upper and lower surface laminating of the cavity of 3-4；On long shaped plate 3-5, locating dowel 3-6 of design is positioned in waist type groove simultaneously.
As shown in Fig. 5, Fig. 6 and Fig. 7, described famale connector 3 is L-shaped, and the part with " Cunninghamia lanceolata (Lamb.) Hook. " type is that carbamide outlet connects
Portion 3-9, the part vertical with carbamide outlet connections 3-9 is the famale connector connecting tube flowed in order to urea liquid；Described sun connects
The part of below the annular slab 1-2 of head will be inserted in the famale connector connecting tube of famale connector, and described famale connector includes four each and every one platforms
Rank, the most respectively step 3-1 are the part at turning, and adjacent carbamide outlet connections, step 3-2 is step 3-1's
Top, the external diameter external diameter more than step 3-1, step 3-3 is cylinder, and on the top of step 3-2, external diameter is more than outside step 3-2
Footpath；The main body of step 3-4 is a cuboid, and the bottom surface of this cuboid is a square, and this cuboid is along being perpendicular to urea solution
Body outlet direction level be provided with cavity 3-7, the most left opening be more than right opening, the bottom surface of this cuboid extend come one long
Shape plate 3-5, devises reinforcement 3-10 between this long shaped plate 3-5 and step 3-3, devises one and determine on described long shaped plate
Position post 3-6, locating dowel is short cylinder.
The inside of described famale connector is respectively step 3-11, step 3-12, step 3-13 from below to up.Step 3-11 be by
The inwardly projecting formation of famale connector connecting tube inwall, thus form mesopore, step 3-12 is inside on famale connector connecting tube inwall
Becoming two blocks that symmetry is protruded, the step through-hole of step 3-4 is made up of step 3-13 and a circular hole 3-8, circular hole 3-8's
Internal diameter is equal with the internal diameter of step 3-13.
As shown in Fig. 8, Fig. 9 and Figure 10, described black box is by the first plastic hoop 4-1, rubber ring 4-2, the second plastic hoop
4-3 forms.The second plastic hoop 4-3, rubber ring 4-2, the first plastic hoop 4-1 it is followed successively by from top to bottom inside famale connector.Wherein
The upper surface laminating of the lower surface of the second plastic hoop 4-3 and step 3-11, rubber ring 4-2 is at the first plastic hoop 4-1, the second plastics
Between ring 4-3, the lower surface laminating of the upper surface of the second plastic hoop 4-3 and block 3-12.
The using method of the present invention is:
The upper surface of the step 3-4 of the described vertical famale connector of male contact 1 inserts in famale connector.Annular slab 1-when male contact
The upper surface laminating of the step 3-4 of the lower surface of 2 and famale connector, now the lower surface of the annular protrusion 1-3 on male contact is with cloudy
The block 3-12 upper surface laminating of joint 3, the upper surface of this annular protrusion 1-3 and the upper surface of long shaped plate 3-5 are at same plane
On, now male contact has been inserted into position.
Pull the handle portion of fastener 2 by hands level, fastener 2 slides in the cavity of the step 3-4 of famale connector 3, when
When on long shaped plate 3-5, locating dowel 3-6 of design is concentric with the round 2-9 of waist type groove side, the Access Division of fastener 2 is by male contact 1
Locking, the large semi-circular 2-1 of Access Division is in the cavity of famale connector 2 simultaneously.Enforce fastener 2, when on long shaped plate 3-5
Locating dowel 3-6 the rectangle 2-4 of waist type groove is outwards squeezed deformation, time concentric with the round 2-6 of waist type groove opposite side, clamping simultaneously
The large semi-circular 2-1 part in portion is when the right opening of famale connector stretches out, and male contact 1 is in relaxation state, if now vertically to
On pull male contact 1, male contact 1 can be extracted.
Claims (7)
1. an automobile L-type urea tube snap joint, including male contact, fastener and famale connector, it is characterised in that: described sun
Joint is the hollow structure of up/down perforation, and described male contact includes male contact connecting tube, carbamide import connecting portion, annular slab and ring
Shape is protruding, and the upper end of described male contact connecting tube is provided with described carbamide import connecting portion, and described annular slab is sleeved on described sun and connects
The middle and upper part of head connecting tube, described annular protrusion is positioned at the lower section of annular slab and is sleeved on the middle and lower part of described male contact connecting tube；
The external diameter of described annular slab is more than the external diameter of described annular protrusion；
Described famale connector is hollow structure, and described famale connector includes famale connector connecting tube, lock part and carbamide outlet connections, institute
The upper end stating famale connector connecting tube is provided with described lock part, and the lower end of described famale connector connecting tube is provided with the outlet of described carbamide and connects
Portion；
Described fastener includes Access Division and handle portion, and described Access Division has connection through hole, and described connection through hole is away from drawing
The side of hand is provided with semicircular indentations, and the internal diameter of described semicircular indentations is identical with the external diameter of male contact connecting tube；Described draw
Hand is provided with waist type groove, and the length direction of waist type groove is arranged along the direction of motion of fastener；
Described lock part includes that step, long shaped plate and locating dowel, the center of described step have step through-hole, described step edge
Left and right directions be provided with in order to fastener through and can the cavity of side-to-side movement, described cavity includes left opening and in order to semicircle
The right opening that the Access Division of breach side is stretched out, described long shaped plate is arranged on the left opening part of cavity and is fixed on described cavity
On, the left part end face of described long shaped plate is provided with described locating dowel；
The lower end of described male contact connecting tube sequentially passes through step through-hole from top to bottom, connects in through hole and famale connector connecting tube
Central hole, described annular protrusion is positioned on the step of described step through-hole, and described fastener is positioned at the top of described annular protrusion, institute
Stating annular slab be positioned at the top of described step and fit with step, the Access Division of described fastener is stretched in the cavity of lock part,
And connect through hole connect with the centre bore of step through-hole, famale connector connecting tube, described locating dowel be positioned at described waist type groove and with
Arc tips clamping on waist type groove, described semicircular indentations is connected on the outer wall of described male contact connecting tube.
2. a kind of automobile L-type urea tube snap joint as claimed in claim 1, it is characterised in that: the card of described fastener
The portion that connects is arc away from the side in handle portion, and described connection through hole is square, and described handle portion is inverted T shape.
3. a kind of automobile L-type urea tube snap joint as claimed in claim 1 or 2, it is characterised in that: described carbamide import
It is equipped with annular anti-skidding projection on connecting portion and carbamide outlet connections.
4. a kind of automobile L-type urea tube snap joint as claimed in claim 1 or 2, it is characterised in that: described famale connector is even
The centre bore of adapter includes hole, mesopore and lower opening the most successively, and the internal diameter in described upper hole is less than described step through-hole
Internal diameter, the internal diameter in described upper hole is identical with the internal diameter of described lower opening, and the internal diameter of described mesopore is less than the internal diameter in described upper hole, described
The internal diameter of mesopore is identical with the external diameter of male contact connecting tube.
5. a kind of automobile L-type urea tube snap joint as claimed in claim 1 or 2, it is characterised in that: described male contact is even
The lower end of adapter is provided with reducing.
6. a kind of automobile L-type urea tube snap joint as claimed in claim 4, it is characterised in that: described upper hole is with described
Between step through-hole, junction is additionally provided with block, and described block is positioned at the lower section of described annular protrusion, and described block is provided with two
Individual, two blocks are arranged symmetrically in both sides before and after the upper end in hole.
7. a kind of automobile L-type urea tube snap joint as claimed in claim 5, it is characterised in that: also set in described upper hole
The first plastic hoop, rubber ring and the second plastic hoop, described second plastic hoop are positioned at institute to have black box, described black box to include
Stating the lower section of block and fit with the lower surface of block, described rubber ring is positioned at the lower section of the second plastic hoop, described first plastics
Ring is positioned at the lower section of described rubber ring；Described first plastic hoop, rubber ring, the second plastic hoop are all sleeved on described male contact and connect
Guan Shang.
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| CN201610601280.0A CN106090492B (en) | 2016-07-26 | 2016-07-26 | L-shaped urea pipe quick joint for automobile |
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| CN201610601280.0A CN106090492B (en) | 2016-07-26 | 2016-07-26 | L-shaped urea pipe quick joint for automobile |
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| CN106090492A true CN106090492A (en) | 2016-11-09 |
| CN106090492B CN106090492B (en) | 2017-12-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107101056A (en) * | 2017-05-22 | 2017-08-29 | 重庆溯联汽车零部件有限公司 | Crankcase snap joint |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106090492B (en) | 2017-12-05 |
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