CN102434742A - Pipe connector for quick connection - Google Patents
Pipe connector for quick connection Download PDFInfo
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- CN102434742A CN102434742A CN201110401369XA CN201110401369A CN102434742A CN 102434742 A CN102434742 A CN 102434742A CN 201110401369X A CN201110401369X A CN 201110401369XA CN 201110401369 A CN201110401369 A CN 201110401369A CN 102434742 A CN102434742 A CN 102434742A
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- ring
- pipe joint
- gear ring
- resilience gear
- quick connection
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Abstract
The invention relates to a pipe connector for quick connection. In the invention, a connecting part comprises an O-shaped sealing ring (2), a sealing ring pressing ring (3), a resilient gear ring (4), a pipe return snap ring (6) and a locking ring (7) which are sequentially contained in a pipe connector main body (1), wherein a plurality of reserved fastening legs (9) which are radially projected outwards are formed at the axial lower end of the locking ring (7), inner-concave fastening slots (10) corresponding to reversed fastening legs are formed at the inner wall of the pipe connector main body (1), a radial guide flow thin slot (11) is formed on the plane of the ring-shaped step for installing the O-shaped sealing ring, and the contact surfaces of the upper plane of the reserved legs (9) and the inner wall of the pipe connector main body (7) form angles alpha of 91-100 degrees. According to the invention, when the pipe connector is used for a long time, the use of the locking ring (7) should not happen loose and the sealing performance degradation in a long time. The pipe connector for quick connection can be quickly connected with pipes, and can be disassembled and assembled with the pipes, no energy consumption is needed for the connection, auxiliary tools and sealing packing are free, the larger the inner pressure is, the better the sealability is, the comprehensive connection cost is reduced, and the use is convenient.
Description
Technical field
The present invention relates to the pipe joint that a kind of pipeline connects, particularly, the present invention relates to a kind of quick connection that is used for fluid-transporting tubings such as water pipe are carried out rapid abutting joint and use pipe joint.
Background technique
Pipeline is industrial requisite basic facilities.Assembling pipe joint is its requisite connection means.
At present, well-known pipeline connects and mainly contains be threaded (metal tube) and be connected dual mode such as (PP-R and PE manage) with hot melt.Being threaded is to utilize joint and pipe internal and external screw thread separately to be spirally connected, and seals as stuffing box packing with white paint flax silk or polytetrafluoroethylraw raw material band; It is to utilize electric heating that pipe and joint are desired attachment portion (end face or is connected contact surface) to be heated to molten state that hot melt connects, and then compresses mutually, makes the contact surface homogeneous material melt mutually and makes it connection and seal.But above-mentioned two kinds of Placements connect trouble, and time-consuming, sealing effect is poor, and maintenance dismounting inconvenience.
The every profession and trade pipeline uses and development in order to adapt to, and pipeline connection technology or equipment have been proposed high request, and existing many new technologies are come out.
For example, number of patent application discloses a kind of small-bore liquid letter shoot road and valve, quick piecing devices that are connected of tap of being used for for the patent application of " CN200410040090.3 ".According to this device; As long as produce a kind of novel threeway and elbow, and the connecting end of valve (tap) adopted the structure of this patent of invention, just can realize the quick mounting of valve (tap) and pipeline; Improve the building work efficiency greatly, and be convenient to user's maintenance and more renew part.Yet, of the document, the quick connection of small-bore liquid during this profit application technology is only applicable to, letter shoot road and valve, tap.
And for example, number of patent application discloses a kind of quick coupling that pipeline connects that is used for for the Chinese granted patent of " 99122914.2 ".Of its specification; The tubular axis outer wall of this pipe joint has inner sleeve; The inner sleeve outer wall has outer sleeve, and the wall of outer sleeve is provided with the threaded fastening piece of its outer wall, and handle wheel and the spring that acts on fastening piece are arranged on the outer sleeve; About spring the section respectively with inner sleeve right-hand member outer wall and bounding means outer wall drive fit, the outer wall of inner sleeve has groove.The rotatable handle wheel drives outer sleeve and fastening piece rotates; The threaded top of its outer wall is concordant with the outer sleeve outer wall when the fastening piece inboard falls in the groove, and its outer wall screw thread then protrudes from the outer sleeve outer wall when the fastening piece interior sidewall surface slides onto the inner sleeve outer wall in by groove.
But the goal of the invention of this invention only is to simplify the operation of installation and removal.And, strengthening (in the pressure-bearing scope) along with bearing pressure, its sealing effect is affected.In addition, the present invention is applicable to being connected of gas-tank and gas pipe line, needs assistant tool and stuffing box packing.
And for example, number of patent application discloses a kind of direct-push type multiunit tube joint for the utility model patent of " 002351220.8 ".This direct-push type multiunit tube joint is a metallic, is particularly useful for aluminium-plastic composite pipe or PEX pipe are connected, and sees Fig. 1.Be characterized in: said direct-push type multiunit tube joint is made up of pipe fitting (pipe joint body) 1, O-ring seals 2, awl seat (a seal ring pressure ring) 3, (body card end with) resilience gear ring 4, movable tapered sleeve (moving back the pipe clamp ring) 6 and fixed cover (lock ring) 7.Said O-ring seals 2, awl seat 3, resilience gear ring 4, movable tapered sleeve and fixed cover are incorporated in the axial bore of pipe fitting 1 successively.
When carrying out the pipeline connection, at first aluminium-plastic composite pipe to be connected or PEX tubing directly are inserted through in each hole of said movable tapered sleeve, resilience gear ring 4, awl seat, O-ring seals 2 the limiting faces A in bumping jointed tubular workpieces body 1 hole.At this moment, nationality is blocked the body material that generation connects by the resilient relationship of an equally distributed 15-20 internal tooth in resilience gear ring 4 holes.Nationality is realized sealing by the elastic telescopic of O-ring seals 2.At last, fastening with selling off shape in the ora terminalis 12 through with pipe fitting 1, extruding, fastening fixed cover 6, thereby, the body after being fastenedly connected.
When aluminium-plastic composite pipe that take out to connect in desire or PEX tubing; Pry open the fastening ora terminalis of using of the pipe fitting 1 of interior folding, distortion; The end face of activity compression tapered sleeve makes thrust be passed to resilience gear ring 4, an equally distributed 15-20 internal tooth in spreading resilience gear ring 4 holes; Make its disengaging and the card of tubing end relation, can take out the tubing of connection easily.
Yet; Direct-push type multiunit tube joint according to above-mentioned patent; Pipe fitting 1 on its final pipe joint and the fastening need of tubing are fastening with selling off shape in the ora terminalis with this pipe fitting 1, extruding, fastening fixed cover (lock ring) 7, the body after only blocking again, be fastenedly connected through fixed cover (lock ring) 7.For this reason, requiring said direct-push type multiunit tube joint is metallic, especially copper, and it is loosening with the passing of time easily that this causes the chucking of 7 pairs of tubing of fixed cover (lock ring) to use, and uses inconvenience, and cause the pipe fitting cost to rise.
In addition, the sealing of said direct-push type multiunit tube joint system is achieved through O-ring seals 2.With the passing of time this O-ring seals 2 uses, and elasticity weakens, and takes place to wear out, thereby causes sealability to descend.And fluid lines such as water pipe require height to sealability, in case sealability descends, just need replace.This causes said pipe joint transposing frequency to strengthen again, increases user cost.
In order to overcome inconvenience and the shortcoming that existing pipeline connects; The design people finds: on overall structure; Use the lock ring of left-hand thread pin in fixed cover (lock ring) joint periphery, utilize the elasticity of lock ring material, the left-hand thread pin on its lock ring is held in the inside groove of housing with evagination; Can all parts all be locked in the joint housing, thus reach other parts of locking with and the purpose that can not withdraw from.In addition; On the ring-shaped step plane that O RunddichtringO (figure B) is installed on the pipe joint body; Leave one and be used for the radially water conservancy diversion stria that fluid flows, it is even to make that O-ring seals bears pressure on the whole semi-round ring shape face when bearing manifold pressure, makes the O RunddichtringO produce axial compression and contracts and the deformation tendency that radially increases; Reach the good more purpose of the big more sealability of pressure, and then guarantee the sealing effect of quick coupling.
For this reason, the inventor had once proposed a kind of quick connection that is used for the pipeline connection with pipe joint (patent No. is " 200720144236.8 ").Described quick connection is used with pipe joint, and with the passing of time lock ring only loosening and sealability decline to the card of tubing should not take place; Said quick connection can reduce to change frequency with pipe joint, reduces cost, and is easy to use; Only can carry out the connection and the transposing of pipe joint easily, fast by pushing body snap ring.
Yet the invention described above people's quick connection still exists on pressure energy power, working life, the seal degree in the bearing of pipe joint with pipe joint needs improvements.
Summary of the invention
For addressing the above problem, the objective of the invention is to, provide a kind of and be used for quick connection that pipeline connects with high withstand voltage, high sealing, long-life pipe joint.
It is of the present invention that said to be used for quick connection that pipeline connects following with high withstand voltage, high sealing, long-life pipe joint technological scheme:
Pipe joint is used in a kind of quick connection; Joint by being communicated with each other constitutes; Said joint comprise " O " shape seal ring (2), seal ring pressure ring (3), the body card that are incorporated in successively in the pipe joint body (1) end with resilience gear ring (4), move back pipe clamp ring (6) and be used for fixing, the lock ring (7) of the said parts of locking; Said lock ring (7) the lower axial end outside is formed with the left-hand thread pin (9) of a plurality of radially evaginations of symmetry, is formed with a plurality of indent catching grooves (10) of correspondence in the respective inner walls side of pipe joint body (1); Lock ring (7) axial rearward end inboard is formed with the inwardly button edge of folding of footpath; So that pipe clamp ring (6) the rear end step that moves back of packing into is carried out locking, fastening; It is characterized in that: the last plane of the left-hand thread pin (10) of said lock ring (7) contacts with the last plane deduction of the indent catching groove (10) of said pipe joint body (1); Said lock ring (7) outer wall and said pipe joint body (1) inwall butt; Said left-hand thread pin (9) outer wall and said pipe joint body indent catching groove (10) are gone up the plane and are formed angle α, and the angle of α is at 91 °-100 °.
In addition, lean on the elastic force of the internal tooth that is uniformly distributed with in the resilience gear ring hole and stretching of " O " seal ring, block firm tubing and realize sealing.When the pipe clamp ring was moved back in pushing, thrust was passed to resilience gear ring 4, and equally distributed card is only used internal tooth in spreading resilience gear ring 4 holes, made its disengaging and the card of tubing end relation, can take out the tubing of connection easily.Pipe joint is used in quick connection according to the invention described above, it is characterized in that, said α angle is at 91 °-100 °.
Thus; Plane on the left-hand thread pin 9 of said lock ring 7; Also reach said lock ring 7 outer wall with said adapter body 1 internal face and form angle greater than 90 °; Formation has greater than conical surface on the flare of shell indent catching groove 10 bell-mouthed angles (being advisable for 91-100 °), makes that forming line on the plane theory on lock ring left-hand thread pin 9 and the shell indent catching groove 10 contacts.
In addition; In actual production process, injecting products can produce after cooling and shrink, and technology does not reach the right angle requirement; This moment, shell indent catching groove 10 former upward lower walls and outer casing inner wall (generatrix direction) can form the obtuse angle greater than 90 °; Also be 11 one-tenth horn mouths of shell indent catching groove, interior osculum is big, and this has more increased the trend that lock ring left-hand thread pin 9 slides to the joint axial direction.When the radial component value that acts on the power on plane on the shell indent catching groove 10 when lock ring left-hand thread pin 9 surpasses lock ring pin elastic force value; Lock ring left-hand thread pin 9 will radially inwardly skid off shell indent catching groove 10; Lock ring 7 will lose all parts locking effects in the enclosure, be that whole rapid pipe joint was lost efficacy with causing.
Pipe joint is used in quick connection according to the invention described above; Said part 2～6 nationalitys are formed with the lock ring 7 of the left-hand thread pin of symmetrical a plurality of radially evaginations by the lower axial end outside; After said lock ring 7 is loaded in the pipe joint body hole; The left-hand thread pin (protruding block) of a plurality of radially evaginations in the said lock ring 7 lower axial end outside can embed in a plurality of indent catching grooves of symmetry of correspondence of the respective inner walls side that is formed at pipe joint body 1, takes this, and can all be locked at all parts in the joint housing; And the fastening ora terminalis of using that need not the converting pipe adapter body both can block only body snap ring.Make pipe joint body reusable, improve using effect.
Pipe joint is used in quick connection according to the present invention, preferably, is provided with resilience gear ring pressure ring 5 between resilience gear ring 4 in pipe joint body 1 and the lock ring 7.
Pipe joint is used in quick connection according to the present invention, preferably, is used to install the ring-shaped step plane of O RunddichtringO in the said pipe joint body 1, leaves radially water conservancy diversion stria 11.
Nationality is by ring-shaped step Plane Installation " O " RunddichtringO in pipe joint body; On said planar annular; Leave radially water conservancy diversion stria 11; Make fluid this groove of can flowing through, it is even to make that " O " shape seal ring bears pressure on the whole semi-round ring shape face when bearing manifold pressure, makes " O " RunddichtringO produce axial compression and contracts and the deformation tendency that radially increases.Promptly; With the stria of leaving on the shell round table surface that elastic seal ring 2 contacts 11; Effect is to let flowing medium in the pipeline flow to the inside and outside both sides of elastic seal ring 2 through stria 11, make press in inside and outside both sides receive on the semicircle anchor ring of elastic seal ring 2 contact mediums balanced.Elastic seal ring 2 is behind the pressure medium that receives the semicircle anchor ring, with producing compression and the trend that expands in the radial direction on the joint axial direction.Make that the interior pressure of pipeline is big more, elastic seal ring 2 radial expansion trend are big more, and it is good more to seal, thereby guarantees the sealing of pipeline rapid pipe joint.
Pipe joint is used in quick connection according to the present invention, preferably, on the pipe joint body inwall, has axial notch, and on the relevant position of resilience gear ring, also is provided with and its convexity of coincideing.
Pipe joint is used in quick connection according to the present invention, preferably, is formed with 6-12 the radially left-hand thread pin of evagination in the lock ring lower end, is formed with 6-12 corresponding indent catching groove in pipe joint body respective inner walls side.
In view of the above, when putting into pipe joint body to resilience gear ring, the groove on the protruding alignment tube adapter body inwall on the resilience gear ring is installed.Like this, the quick coupling after the installation just can prevent because of being applied to the rotation to axial that moment of torsion in pipeline or the rapid pipe joint produces pipeline and rapid pipe joint.Preferably, said axial notch and convexity are provided with the 2-4 bar respectively.In view of the above, in the time of in the lock ring 7 ascending pipe adapter body of built-in body snap ring, the left-hand thread pin of said lock ring 7 evaginations is made elastic shrinkage, when arriving at the corresponding indent catching groove of pipe joint body inwall position, ejects and embeds wherein.Play fastening and the locking effect.
Pipe joint is used in quick connection according to the present invention; Preferably; Said lock ring left-hand thread pin 9 and said body card end with resilience gear ring 4 or resilience gear ring pressure ring 5 compress surface of contact and said lock ring 7 internal faces formation angle β, the angle of angle β is at 75-88 °.
Preferably, said β angle is at 78-82 °.
Pipe joint is used in quick connection according to the present invention, and preferably, said resilience gear ring pressure ring 5 forms the introversion flange along the inclination gear ring inner edge that said body card ends with resilience gear ring 4.
Pipe joint is used in quick connection according to the present invention, and preferably, said resilience gear ring pressure ring 5 forms cambered surface with the surface of contact that compresses of 9 times Transverse planes of lock ring left-hand thread pin.
Pipe joint is used in quick connection according to the present invention, and preferably, the plane forms angle γ on the last plane of the indent catching groove 10 of said pipe joint body 1 and the said left-hand thread pin 9, and the angle of γ is at 1-5 °.
In view of the above; But the non-deformability of enhance elasticity gear ring, improve anti-in pressure energy power, strengthen resilience gear ring to insert tubing fixed effect; Prevent that resilience gear ring is loosening; Simultaneously, can prevent to press the resilience gear ring plane that causes of rising to be drawn distortion outward in receiving, influence oblique elasticity internal tooth the card of tubing is ended effect because of tubing.
Thus, can strengthen the fluid-tight effect.
Pipe joint is used in quick connection according to the present invention; Preferably; Said seal ring pressure ring 3, resilience gear ring 4 and resilience gear ring pressure ring 5 form three-in-one component through pin-and-hole on the pin on the resilience gear ring pressure ring 5, the resilience gear ring 4 and the cotter way on the seal ring pressure ring 3.
Thus, merge into a combiner to inner assembly seal ring pressure ring 3, elasticity latch 4, the latch pressure ring 5 of apportion, can reduce by three assembly alignment errors, improve installation precision, also more convenient whole joint is installed on the packaging technology.Quick connection of the present invention is more quick with the pipe joint assembling, and is convenient.
Pipe joint is used in quick connection according to the present invention, and preferably, said joint is two, axially to being connected into free flow coupling.
Pipe joint is used in quick connection according to the present invention, preferably, and the three-way union of said pipe joint for constituting by above-mentioned joint.
Pipe joint is used in quick connection according to the present invention, preferably, and the pipe joint that said pipe joint constitutes for the joint that connects different-diameter.
Pipe joint is used in quick connection according to the present invention, and preferably, said pipe joint is the pipe joint by bend pipe (90 °/135 °).
Pipe joint is used in quick connection according to the present invention, and preferably, said pipe joint is the single head joint.
Pipe joint is used in quick connection according to the present invention, and preferably, said pipe joint is that one～two joint is through different modes and the pipe joint that has inside and outside rib-loop to be connected.
Pipe joint is used in quick connection according to the present invention, and preferably, said joint is two, connects into the union of straight coupling through rib-loop.
Pipe joint is used in quick connection according to the present invention, and described quick connection is used with pipe joint, and with the passing of time lock ring only loosening and sealability decline to the card of tubing should not take place; The disengaging of lock ring and pipe joint body also should not take place, and guarantees the fixing and locking effect of lock ring to component.Quick connection of the present invention with pipe joint can realize fast being connected with tubing, easy disassembly, connection need not energy consumption, need not good, the comprehensive more link cost of the big more sealing of assistant tool and stuffing box packing and interior pressure reduce, easy to use.
Description of drawings
Fig. 1 is the vertical section structure figure of quick coupling of technology in the past.
Fig. 2 is the vertical section structure figure of quick connection of the present invention with pipe joint.
Fig. 3 A, B are respectively resilience gear ring sectional view and plan view.
Fig. 4 A, B are respectively the sectional view and the plan view of lock ring.
Fig. 5 A is the sectional view that pipe joint body inwall side shown in Figure 1 forms the indent catching groove place corresponding with lock ring lower end left-hand thread pin.
Fig. 5 B is the enlarged diagram that the plane forms angle γ on last plane and the said left-hand thread pin 9 of indent catching groove 10 of the said pipe joint body 1 shown in Fig. 5 A.
Fig. 6 is used for the pipe joint cross-sectional schematic of the pipeline connection of different-diameter for the present invention.
Fig. 7 is for forming the sectional view that water conservancy diversion stria (C-C) is radially located on the ring-shaped step plane that is used to install the O RunddichtringO in Fig. 1 pipe joint body.
Fig. 8 A, B are the stressed schematic representation of O RunddichtringO that is positioned on the ring-shaped step plane that is formed with water conservancy diversion stria radially.
The composite structure that Fig. 9 is a seal ring pressure ring 3, resilience gear ring 4, resilience gear ring pressure ring 5 through the pin pin-and-hole forms the three-in-one component schematic representation.
Among the figure, I, II are respectively two axially joints of butt joint, and 1 is pipe joint body; 2 is O-ring seals, and 3 is the seal ring pressure ring, and 4 only use resilience gear ring for the body card; 5 is the resilience gear ring pressure ring, and 6 for moving back the pipe clamp ring, and 7 is lock ring; 8 for being opened in the axial notch of inwall of pipe joint body 1,8 ' convexity for coincideing on the relevant position that is opened in resilience gear ring, with axial notch, and 11 are water conservancy diversion stria radially; 9 is the left-hand thread pin that is formed at the radially evagination of lock ring lower end, and 10 for being formed at the pipe joint body respective inner walls a plurality of indent catching grooves corresponding with 9, and A is the bearing surface that tubing connects usefulness.
Embodiment
Below, in conjunction with accompanying drawing, specify quick connection of the present invention with embodiment and use pipe joint.
As shown in Figure 2, (I II) constitutes by two joints that axially dock with pipe joint in quick connection of the present invention.
Said joint (I, II) structure is identical, and subtend connects, and axially communicates.Existing is the example explanation with joint (I).
Joint (I) only is made up of with resilience gear ring 4, resilience gear ring pressure ring 5, body snap ring 6 and lock ring 7 pipe joint body 1 and O-ring seals 2, seal ring pressure ring 3, the body card taken in wherein.
Shown in Fig. 2-5, pipe joint body 1 is a plastics system hollow barrel-type link.Its nearly central position inwall side is formed with a ring-shaped step plane, O-ring seals 2, seal ring pressure ring 3, body card is set successively vertically from inside to outside only with resilience gear ring 4, resilience gear ring pressure ring 5 and body snap ring 6 and lock ring 7 on it.
The lock ring 7 lower axial end outside is formed with the left-hand thread pin (protruding block) of a plurality of radially evaginations of symmetry, is formed with a plurality of indent catching grooves of corresponding symmetry in the respective inner walls side of pipe joint body 1.Lock ring 7 axial rearward end inboards are formed with the inwardly button edge of folding of footpath, so that rear end, the insertion part step that inserts the body snap ring 6 after connecting is carried out locking, fastening.
The plane contacts with the last plane deduction of the indent catching groove 10 of said adapter body 1 on the left-hand thread pin 9 of said lock ring 7; Said lock ring 7 outer walls and said adapter body 1 inwall butt; The last plane of the indent catching groove 10 of said adapter body 1 and said adapter body 1 internal face form angle α, and the angle of α is greater than 90 °.According to present embodiment, the angle of α is 92-95 °.
As shown in Figure 3, it is the elastic metallic system gear ring that a gear ring edge is uniformly distributed with oblique elasticity internal tooth that the body card only uses resilience gear ring 4.During axial push body snap ring 6, through resilience gear ring pressure ring 5, thrust is passed to resilience gear ring 4, and equally distributed metal internal teeth in spreading resilience gear ring 4 holes breaks away from it and the card of tubing ends relation, can take out the tubing of connection easily.And pull out body snap ring 6, and the internal tooth returning position of resilience gear ring 4 then, the card that principal characteristic forms tubing ends, fastening connection to tubing.
Like Fig. 2 and shown in Figure 7; In pipe joint body 1, install on the said ring-shaped step plane of O RunddichtringO, leave 4 radial grooves, make fluid this groove of can flowing through; It is even to make that O-ring seals bears pressure on the whole semi-round ring shape face when bearing manifold pressure; Make the O RunddichtringO produce axial compression and contract and the deformation tendency that radially increases, reach the good more purpose of the big more sealability of pressure, and then guarantee the sealing effect of quick coupling.
On body snap ring 6, put, clamping lock ring 7; With body snap ring 6 and go up internal diameter greater than in the lock ring 7 of the external diameter of body snap ring 6 ascending pipe adapter body 1 together; When hearing " rattling away " one; The left-hand thread pin that lock ring 7 is described has embedded in the indent catching groove of pipe joint body inwall, plays fastening and sealing effect.Be convenient to aluminium-plastic composite pipe or PEX tubing are carried out the pipeline connection.
At this moment, withdraw from body snap ring 6, make its lower end be in the state that does not push resilience gear ring 4, the oblique internal tooth returning position of resilience gear ring 4, card ends connected tubing, and is fastening.
A because radial groove of on said planar annular, leaving; Make fluid this groove of can flowing through; It is even to make that O-ring seals bears pressure on the whole semi-round ring shape face when bearing manifold pressure; Make the O RunddichtringO produce axial compression and contract and the deformation tendency that radially increases, reach the good more purpose of the big more sealability of pressure, and then guarantee the sealing effect of quick coupling.
Nationality is by the ring-shaped step Plane Installation O RunddichtringO in pipe joint body; On said ring-shaped step plane, leave radially water conservancy diversion stria 11; Make fluid this groove of can flowing through; It is even to make that O-ring seals bears pressure on the whole semi-round ring shape face when bearing manifold pressure, makes the O RunddichtringO produce axial compression and contracts and the deformation tendency that radially increases.Promptly; With the stria of leaving on the shell round table surface that elastic seal ring 2 contacts 11; Effect is to let flowing medium in the pipeline flow to the inside and outside both sides of elastic seal ring 2 through stria 11, make press in inside and outside both sides receive on the semicircle anchor ring of elastic seal ring 2 contact mediums balanced.Elastic seal ring 2 is behind the pressure medium that receives the semicircle anchor ring, with producing compression and the trend that expands in the radial direction on the joint axial direction.Make that the interior pressure of pipeline is big more, elastic seal ring 2 radial expansion trend are big more, and it is good more to seal, thereby guarantees the sealing of pipeline rapid pipe joint.
Pipe joint is used in quick connection according to the present invention, preferably, on the pipe joint body inwall, has the axial notch that resilience gear ring is installed, and on the relevant position of resilience gear ring, also is provided with and its convexity of coincideing.
In view of the above, when putting into pipe joint body to resilience gear ring, the groove on the protruding alignment tube adapter body inwall on the resilience gear ring is installed.Like this, the quick coupling after the installation just can prevent the rotation to axial that produces resilience gear ring and pipe because of the moment of torsion that is applied in pipeline or the rapid pipe joint.Said axial notch and convexity are provided with the 2-4 bar respectively.
Pipe joint is used in quick connection according to present embodiment, is formed with 4-8 the radially left-hand thread pin of evagination in the lock ring lower end, is formed with 4-8 corresponding indent catching groove in pipe joint body respective inner walls side.
Said lock ring left-hand thread pin 9 and said body card end with resilience gear ring 4/ resilience gear ring pressure ring 5 compress surface of contact and said lock ring 7 internal faces formation angle β, according to present embodiment, the angle of angle β is at 75-80 °.
Pipe joint is used in quick connection according to present embodiment; Be provided with resilience gear ring pressure ring 5 between resilience gear ring in pipe joint body and the lock ring; Thus, can prevent that resilience gear ring is loosening, simultaneously; Can prevent because of compressing of said lock ring 7 causes resilience gear ring planar compression distortion, influence oblique elasticity internal tooth the card of tubing is ended effect.In addition, said resilience gear ring pressure ring 5 forms the introversion flange along the inclination gear ring inner edge that said body card ends with resilience gear ring 4.In view of the above, can strengthen the fixed effect of resilience gear ring, prevent that resilience gear ring is loosening, simultaneously, can prevent to cause the distortion of resilience gear ring planar compression, influence oblique elasticity internal tooth the card of tubing is ended effect because of the pushing of said lock ring 7.
According to present embodiment, said seal ring pressure ring, resilience gear ring 4, resilience gear ring pressure ring 5 form three-in-one component through the composite structure of pin pin-and-hole.Promptly; On the annular periphery of said seal ring pressure ring 8 pin is set, on the annular periphery relevant position of said resilience gear ring 4 pin-and-hole is set, and cotter way is set on the annular periphery relevant position of said seal ring pressure ring; Thus, push the composite structure that can form the pin pin-and-hole and form three-in-one component.
In the present embodiment, said resilience gear ring is a metallic, preferred stainless steel or copper material.Said O-ring seals and resilience gear ring pressure ring 5 are rubber system, and said seal ring pressure ring is a metallic.
Except the lock ring 7 lower axial end outsides is formed with six of the symmetry radially left-hand thread pin (protruding block) of evagination; Be formed with six corresponding indent catching grooves in pipe joint body respective inner walls side, the angle of α is 95-98 °, in addition; Resilience gear ring pressure ring 5 is not installed on the resilience gear ring 4; Said seal ring pressure ring, resilience gear ring 4, resilience gear ring pressure ring 5 do not form outside the three-in-one component, and other make quick connection of the present invention and use pipe joint as embodiment 1.
Except on the pipe joint body inwall, having an axial notch; And on the relevant position of resilience gear ring, also be provided with and its convexity of coincideing; The angle of angle β exists, and 80-82 °, said resilience gear ring pressure ring (5) and lock ring left-hand thread pin (9) surface of contact that compresses of Transverse plane down form outside the cambered surface; Other make quick connection of the present invention and use pipe joint as embodiment 1.
In view of the above, when putting into pipe joint body to resilience gear ring, with the groove on the protruding alignment tube adapter body inwall on the resilience gear ring.Like this, the quick coupling after the installation just can prevent to produce the rotation to axial with pipe because of being applied to moment of torsion in pipeline or the rapid pipe joint.
Except on the pipe joint body inwall, having two axial notches; And on the relevant position of resilience gear ring, also be provided with and its convexity of coincideing; The angle of angle β exists, and 82-85 °, plane formation angle γ is outside 2-5 ° on the last plane of the indent catching groove 10 of said pipe joint body 1 and the said left-hand thread pin 9; Other make quick connection of the present invention and use pipe joint as embodiment 3.
In view of the above, when putting into pipe joint body to resilience gear ring, with the groove on the protruding alignment tube adapter body inwall on the resilience gear ring.Like this, the quick coupling after the installation just can prevent to produce the rotation to axial with pipe because of being applied to moment of torsion in pipeline or the rapid pipe joint.
Except of the three-way union of said pipe joint for constituting by three said joints; Said body snap ring 6 and lock ring 7 are copper system hollow barrel-type link; On the ring-shaped step plane of the O RunddichtringO of installing on the pipe joint body; Leave 4 and be used for outside the mobile radially water conservancy diversion stria of fluid, other make quick connection of the present invention and use pipe joint as embodiment 1-4.
Except the pipe joint of said pipe joint for the joint formation of connection different-diameter (diameter is respectively 20mm and 40mm), other make quick connection of the present invention and use pipe joint as embodiment 1-4.
Except the pipe joint of said pipe joint for the joint formation of connection different-diameter (diameter is respectively 15mm and 32mm), other make quick connection of the present invention and use pipe joint as embodiment 1-4.
Except said pipe joint is that an end connects silently, an end connecting tube, said seal ring pressure ring is outside the plastics system, other make quick connection of the present invention and use pipe joint as embodiment 1-4.
Except said pipe joint is a bridge piece one an end connecting tube, said resilience gear ring pressure ring is outside the metal copper, and other make quick connection of the present invention and use pipe joint as embodiment 1-4.
Except the pipe joint of said pipe joint for the joint formation of connection different-diameter (diameter is respectively 40mm and 60mm), other make quick connection of the present invention and use pipe joint as embodiment 1-4.
As shown in Figure 6, except the pipe joint of said pipe joint for the joint formation of connection different-diameter (diameter is respectively 80mm and 125mm), other make quick connection of the present invention and use pipe joint as embodiment 1-4.
Make use-case 1
As shown in Figure 6, the of the present invention quick connection of said embodiment 1-11 is applied to diameter with pipe joint connects at the pipeline of the various water-supply lines of the different-diameter of scopes such as 6-40mm, sewerage etc.
At first, installation is only used pipe joint with the quick connection that resilience gear ring 4, body snap ring 6 and lock ring 7 etc. constitute by pipe joint body 1, O-ring seals 2, seal ring pressure ring 3, body card.Push the body snap ring 6 of an end joint, pushing resilience gear ring 4 in the lower end of body snap ring 6 makes in the resilience gear ring 4 spreading holes equally distributed card only use internal tooth.Pipeline to be connected (aluminium-plastic composite pipe or PEX tubing) is inserted, and the pipeline insertion end is bumped the step to the A place of joint.
Then, slightly become flexible, withdraw from body snap ring 6, make its lower end be in the state that does not push resilience gear ring 4.The oblique internal tooth of resilience gear ring 4 is made the elastic recovery original position, and card ends connected tubing, and is fastening.
Take out the pipeline that connects like desire; Then push the body snap ring 6 of an end joint once again; The lower end pushing resilience gear ring 4 of body snap ring 6; Make in the resilience gear ring 4 spreading holes equally distributed card only use internal tooth, break away from the card of connecting tube (aluminium-plastic composite pipe or PEX tubing) is ended relation, can take out the tubing of connection easily.
According to said embodiment and use-case is shown, quick connection of the present invention is used with pipe joint and with the passing of time lock ring should not take place the card of tubing is ended looseningly descended with sealability; Quick connection of the present invention can reduce to change frequency with pipe joint, reduces cost, and is easy to use; And need not assistant tool and stuffing box packing.
Claims (10)
1. quick a connection used pipe joint; Joint by being communicated with each other constitutes, said joint comprise " O " shape seal ring (2), seal ring pressure ring (3), the body card that are incorporated in successively in the pipe joint body (1) end with resilience gear ring (4), move back pipe clamp ring (6) and be used for fixing, the lock ring (7) of the said parts of locking.Said lock ring (7) the lower axial end outside is formed with the left-hand thread pin (9) of a plurality of radially evaginations of symmetry, is formed with a plurality of indent catching grooves (10) of correspondence in the respective inner walls side of pipe joint body (1); Lock ring (7) axial rearward end inboard is formed with the inwardly button edge of folding of footpath; So that pipe clamp ring (6) the rear end step that moves back of packing into is carried out locking, fastening; It is characterized in that: the last plane of the left-hand thread pin (10) of said lock ring (7) contacts with the last plane deduction of the indent catching groove (10) of said pipe joint body (1); Said lock ring (7) outer wall and said pipe joint body (1) inwall butt; Said left-hand thread pin (9) outer wall and said pipe joint body indent catching groove (10) are gone up the plane and are formed angle α, and the angle of α is at 91 °-100 °.
2. pipe joint is used in quick connection according to claim 1, it is characterized in that, is provided with resilience gear ring pressure ring (5) between resilience gear ring (4) in pipe joint body (1) and the lock ring (7).
3. pipe joint is used in quick connection according to claim 1, it is characterized in that, is used for installing the ring-shaped step plane of " O " RunddichtringO in the said pipe joint body (1), leaves radially water conservancy diversion stria (11).
4. pipe joint is used in quick connection according to claim 1, it is characterized in that, on the pipe joint body inwall, has the axial notch (8) fixing, that resilience gear ring (4) is installed, and on the relevant position of resilience gear ring, also is provided with and its convexity of coincideing.
5. pipe joint is used in quick connection according to claim 1, it is characterized in that, is formed with 6-12 the radially left-hand thread pin (9) of evagination in the lock ring lower end, is formed with 6-12 corresponding indent catching groove in pipe joint body (1) respective inner walls side.
6. pipe joint is used in quick connection according to claim 1 and 2; It is characterized in that; The following Transverse plane of said lock ring left-hand thread pin (9); Promptly with said body card end with resilience gear ring (4) or resilience gear ring pressure ring (5) compress surface of contact and said lock ring (7) internal face formation angle β, the angle of β is at 75-88 °.
7. pipe joint is used in quick connection according to claim 2, it is characterized in that, said resilience gear ring pressure ring (5) and lock ring left-hand thread pin (9) surface of contact that compresses of Transverse plane down form cambered surface.
8. pipe joint is used in quick connection according to claim 1, it is characterized in that, said resilience gear ring pressure ring (5) forms the introversion flange along the inclination gear ring inner edge that said body card ends with resilience gear ring (4).
9. pipe joint is used in quick connection according to claim 1, it is characterized in that, the last plane of the indent catching groove (10) of said pipe joint body (1) and said left-hand thread pin (9) are gone up the plane and formed angle γ, and the angle of γ is at 1-5 °.
10. pipe joint is used in quick connection according to claim 2; It is characterized in that; Said seal ring pressure ring (3), resilience gear ring (4), resilience gear ring pressure ring (5) form three-in-one component through pin-and-hole on the pin on the resilience gear ring pressure ring (5), the resilience gear ring (4) and the cotter way on the seal ring pressure ring (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110401369 CN102434742B (en) | 2011-12-06 | 2011-12-06 | Pipe connector for quick connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110401369 CN102434742B (en) | 2011-12-06 | 2011-12-06 | Pipe connector for quick connection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102434742A true CN102434742A (en) | 2012-05-02 |
| CN102434742B CN102434742B (en) | 2013-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110401369 Active CN102434742B (en) | 2011-12-06 | 2011-12-06 | Pipe connector for quick connection |
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| Country | Link |
|---|---|
| CN (1) | CN102434742B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103292099A (en) * | 2013-06-19 | 2013-09-11 | 佛山市日丰企业有限公司 | Direct insertion quick connecting pipe fitting |
| CN103742648A (en) * | 2013-12-26 | 2014-04-23 | 柳州正菱集团有限公司 | Sealing structure for loading machine brake system |
| CN104444856A (en) * | 2014-11-14 | 2015-03-25 | 重庆倍精科技研发有限公司 | Tower crane locking main body frame |
| CN105736875A (en) * | 2014-12-10 | 2016-07-06 | 哈尔滨飞机工业集团有限责任公司 | Flexible connection structure for conduits of different diameters |
| CN108899817A (en) * | 2018-07-18 | 2018-11-27 | 南京中车浦镇城轨车辆有限责任公司 | Snap-in joint |
| CN112847252A (en) * | 2021-01-26 | 2021-05-28 | 中车太原机车车辆有限公司 | Round pin structure capable of being assembled and disassembled quickly |
| WO2023123965A1 (en) * | 2021-12-31 | 2023-07-06 | 浙江省军工集团有限公司 | Inflation pipe seat connecting device |
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| CN112847252A (en) * | 2021-01-26 | 2021-05-28 | 中车太原机车车辆有限公司 | Round pin structure capable of being assembled and disassembled quickly |
| WO2023123965A1 (en) * | 2021-12-31 | 2023-07-06 | 浙江省军工集团有限公司 | Inflation pipe seat connecting device |
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| CN102434742B (en) | 2013-06-19 |
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