CN103162036A - Fast joint - Google Patents
Fast joint Download PDFInfo
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- CN103162036A CN103162036A CN201110411319XA CN201110411319A CN103162036A CN 103162036 A CN103162036 A CN 103162036A CN 201110411319X A CN201110411319X A CN 201110411319XA CN 201110411319 A CN201110411319 A CN 201110411319A CN 103162036 A CN103162036 A CN 103162036A
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Abstract
The invention provides a quick joint which is simple in structure, convenient and quick to operate in jointing, and a male joint or a female joint can bear higher pressure before the jointing of the male joint and the female joint. The quick joint comprises the female joint and the male joint. The female joint comprises a female valve body which is provided with a fluid flow passage, a core sleeve is arranged inside the fluid flow passage, one end of a mandrel fixes a choke plug, the other end of the mandrel penetrates through the core sleeve, a sliding sleeve is arranged on a mandrel in a sleeved mode, an elastic element is arranged between the sliding sleeve and the female valve body or between the sliding sleeve and the core sleeve, and the elastic element enables the sliding sleeve to contact the choke plug in a sealed mode and enables the mandrel to contact the core sleeve in a sealed mode. The male joint comprises a male valve body which is provided with a flow passage, a valve core is arranged inside the flow passage, an elastic element is arranged between the male valve body and the valve core, and the elastic element enables the valve core to contact a valve base in a sealed mode. When one end of the male valve body is inserted into the female valve body, the male valve body pushes the sliding sleeve to move for a distance A, the valve core pushes the mandrel to move for a distance B, and B is smaller than A, so that sealed contact does not exist between the valve core and the valve base, or between the choke plug and the sliding sleeve, or between the mandrel and the core sleeve, and the fluid flow passage and the flow passage form an interconnected passage.
Description
Technical field
Present technique relates to a kind of joint, specifically, is a kind of high-voltage high-speed oil connection.
Background technique
Generally for the flexible pipe joint, it generally comprises tool joint pin and female joint in rapid pipe joint.During use, tool joint pin is docked with female joint and get final product.But general tool joint pin dock with female joint complete after, could pass into fluid to pipeline (being generally flexible pipe).In tool joint pin with before female joint is docked, can not pressure-bearing due to tool joint pin or female joint, pipeline can not pass into fluid.In addition, existing rapid pipe joint, the internal structure more complicated of tool joint pin and female joint, the complex operation that tool joint pin makes tool joint pin communicate with the female joint internal channel when docking with female joint, closing speed is slow.The 3rd, existing rapid pipe joint sealing effect is bad, easily causes fluid leakage.
Summary of the invention
The purpose of present technique be to provide a kind of can be in tool joint pin with before female joint be docked, tool joint pin or female joint can be born elevated pressures, and be simple in structure, rapid pipe joint convenient to operation during docking.
This rapid pipe joint, it comprises be connected a female joint and a tool joint pin;
Female joint comprises the main-valve body with fluid passage; One end of fluid passage is used for being connected with fluid circuit, and the other end is used for inserting tool joint pin; Be provided with the core retainer plate that has center hole in the fluid passage, be provided with the core retainer plate conical seal (contact) face on the core retainer plate end face relative with fluid passage one end that is connected with fluid circuit; One end of mandrel is fixing silently, the other end of mandrel passes the core retainer plate center hole and be provided with the mandrel conical seal (contact) face that contacts with the sealing of core retainer plate conical seal (contact) face; Periphery silently has silently conical seal (contact) face; Sliding sleeve is sleeved on mandrel and can endwisely slipping along mandrel; One end of sliding sleeve has the sliding sleeve conical seal (contact) face that contacts with the sealing of conical seal (contact) face silently; Be provided with elastic element between sliding sleeve and main-valve body or core retainer plate, this elastic element make simultaneously when normality sliding sleeve with silently seal contact, the sealing of mandrel and core retainer plate contacts;
Tool joint pin comprises the public valve body with runner, and an end of runner is used for being connected with fluid hose; Be provided with the valve seat that has the hole in runner, the spool that can move along the runner axis is arranged in runner, spool seals by conical seal (contact) face with valve seat and contacts; The conical seal (contact) face of valve seat is relative with runner one end that is connected with fluid hose; Be provided with elastic component between public valve body and spool, this elastic component makes spool contact with valve base sealing when normality;
When public valve body one end that is not connected with fluid hose was inserted in the circulation passage of main-valve body, the public valve body end face that inserts in the fluid passage was relative with the sliding sleeve end face, and spool end is relative with end face of mandrel; The end face of public valve body promotes sliding sleeve along mandrel axis displacement distance A, and spool promotes mandrel along mandrel axis displacement distance B, and B is less than A; Thereby make between spool and valve seat, silently with sliding sleeve between, between mandrel and core retainer plate all no longer sealing contact, fluid passage and runner have been linked to be the passage of a perforation.
The beneficial effect of present technique:
1, female joint can be born elevated pressures, that is to say, when female joint was connected with fluid circuit, when having elevated pressures in fluid circuit, female joint can not leaked.Because making the mandrel conical seal (contact) face, the elastic element in female joint contacts with the core retainer plate conical seal (contact) face; And the core retainer plate conical seal (contact) face is relative with fluid passage one end that is connected with fluid circuit, and the pressure of fluid circuit inner fluid also makes the mandrel conical seal (contact) face contact with the core retainer plate conical seal (contact) face; Can say, the fluid circuit internal pressure is larger, and the sealing effect of mandrel and core retainer plate is better.
2, tool joint pin can be born elevated pressures, that is to say, when tool joint pin was connected with fluid hose, when having elevated pressures in fluid hose, tool joint pin can not leaked.Because making the spool conical seal (contact) face, the elastic component in tool joint pin contacts with the valve seat conical seal (contact) face; And the valve seat conical seal (contact) face is relative with runner one end that is connected with fluid hose, and the pressure of fluid hose inner fluid also makes the spool conical seal (contact) face contact with the valve seat conical seal (contact) face; Can say, the fluid hose internal pressure is larger, and the sealing effect of spool and valve seat is better.
3, docking operation is convenient and swift, and the interior runner of the fluid passage in the main-valve body and public valve body docks with female joint in tool joint pin completes the passage that can form a perforation, and fluid circuit can communicate with fluid hose by this passage.During docking, public valve body one end is inserted the main-valve body, the end face of public valve body promotes sliding sleeve along mandrel axis displacement distance A, and spool promotes mandrel along mandrel axis displacement distance B, and B is less than A.That is to say, after public valve body passed into the main-valve body, spool had produced relative displacement (displacement amount A-B) with respect to public valve body (valve seat), had produced gap (A-B is suitable with displacement amount) between spool conical seal (contact) face and valve seat conical seal (contact) face thereby make; Certainly, silently also produced gap (A-B is suitable with displacement amount) between conical seal (contact) face and sliding sleeve conical seal (contact) face, also produced gap (B is suitable with displacement amount) between mandrel conical seal (contact) face and core retainer plate conical seal (contact) face, therefore, between spool and valve seat, silently with sliding sleeve between, between mandrel and core retainer plate all no longer sealing contact, fluid passage and runner have been linked to be the passage of a perforation.Can find out from this docking operation, the perforation of passage is along with the docking operation of tool joint pin and female joint is completed, and docks completely, and passage connects.
Above-mentioned rapid pipe joint is provided with limited step in the fluid passage, the limit dais terrace equals B with distance C between relative mandrel end; When spool promoted mandrel along mandrel axis displacement distance B, the limit dais terrace contacted with relative mandrel end.Due to the distance C=B between limit dais terrace and relative mandrel end, with after female joint is docked, mandrel contacts with the limit dais terrace, makes mandrel be in a stable position when tool joint pin.
Above-mentioned rapid pipe joint, sliding sleeve comprise the polyurethane sleeve that periphery contacts with the fluid passage inner wall sealing and the vexed cover that arranges in the endoporus of polyurethane sleeve, described sliding sleeve conical seal (contact) face is arranged on vexed cover one end.Sliding sleeve contacts with the fluid passage inwall by polyurethane sleeve because will axially move with respect to the main-valve body along mandrel, can either reduce the frictional force of polyurethane sleeve and fluid passage, and can make again between polyurethane sleeve and fluid passage inwall has sealing effect preferably.Preferably, the polyurethane sleeve end face is relative with public valve body end face in inserting the fluid passage, and is provided with the o RunddichtringO on this polyurethane sleeve end face.Like this, after docking, also formed sealing effect preferably between contacted public valve body end face and polyurethane sleeve end face, prevented that fluid from leaking outside between contacted public valve body end face and polyurethane sleeve end face.Best, another end of polyurethane sleeve is connected with the y-type seal ring that periphery contacts with the fluid passage inwall.Further prevented the clearance leakage of fluid between y-type seal ring and fluid passage inwall by y-type seal ring.
Above-mentioned rapid pipe joint is provided with positioning means on the main-valve body, when public valve body one end is inserted into the circulation passage of main-valve body and after promoting sliding sleeve and mandrel and moving, public valve body is connected along the positioning means that the mandrel axis moves with the public valve body of restriction.By positioning means, can make tool joint pin and female joint remain on the state that connects, in other words, can make public valve body, spool, sliding sleeve, mandrel etc. be in the state (position) that makes fluid passage and runner be linked to be the passage of a perforation.
Positioning means has varied, and positioning means comprises overcoat, ball simply and reliably; Be provided with in external week of main-valve can be along the axially movable overcoat of mandrel, the endoporus of overcoat has prominent ring; Has outstanding back-up ring on the periphery of main-valve body; Back-up ring is in the endoporus of overcoat; Back-up ring is relative at axial direction with prominent ring; Radially have through hole along mandrel on the main-valve body, having the cross section on public valve body is the groove of V-arrangement; Relative back-up ring when axial direction contacts, is inserted into v shape groove, through hole, the prominent ring radially relative on the public valve body in the fluid passage with prominent ring, and ball is positioned at and is positioned at simultaneously v shape groove and through hole; At axial direction separately the time, public valve body can be with respect to the main-valve axon to movement when relative back-up ring and prominent ring, and the inclined-plane of v shape groove can promote ball and radially move in through hole and described interval.When back-up ring encircles when axial direction contacts with prominent, ball is positioned at and is positioned at simultaneously v shape groove and through hole, under this state, because prominent ring has blocked ball in radial direction, the inclined-plane, both sides of v shape groove can not promote ball and make ball radially move, can not move axially so be provided with the public valve body of v shape groove, thereby make tool joint pin be locked in the state that docks with female joint.In the time of need to extracting tool joint pin in the female joint, need to first move axially overcoat, make the outer prominent ring that puts at ball not in the radial direction, make ball radially moving freely; And then extract tool joint pin, a skew back face of v shape groove can promote ball and radially move, and makes ball leave in v shape groove and enters in interval between through hole and back-up ring and prominent the ring.Like this, can extract tool joint pin in female joint.With after female joint is docked, reliably remain on the state of female joint docking in order to make tool joint pin when tool joint pin, make overcoat be in the state that its prominent ring contacts with packing ring; In order to prevent that overcoat from arbitrarily moving axially, positioning means also comprise making on normality prominent ring with packing ring at axial contacted elastomer.Like this, can make prominent ring keep in touch with packing ring by elastomer.Best, v shape groove is to be looped around the circumferential annular slot of public valve body.Like this, in mated condition, tool joint pin still can be rotated 360 ° around the axis of mandrel with respect to female joint, and keeps sealing, connects safe and reliable.
In order to make mandrel conical seal (contact) face and core retainer plate conical seal (contact) face reliable sealing, above-mentioned rapid pipe joint is provided with the seal ring that contacts for the core retainer plate conical seal (contact) face on mandrel.
In order to make spool conical seal (contact) face and valve seat conical surface seal face reliable sealing, above-mentioned rapid pipe joint is provided with the seal ring that contacts for the valve seat conical seal (contact) face on spool.
Above-mentioned rapid pipe joint, described main-valve body comprises main valve body and auxiliary valve body, main valve body and auxiliary valve body respectively have the fluid passage that communicates; One end periphery of auxiliary valve body is connected with step hole in the main valve body fluid passage by screw thread; Core retainer plate is between the end of the step surface of step hole and auxiliary valve body.This split type main-valve body structure is convenient to produce, and has reduced the preparation difficulty.One end of the fluid passage of main valve body is used for being connected with fluid circuit, seals by o type circle between core retainer plate and step surface.So just guarantee the sealing of core retainer plate and main valve body, prevented fluid leakage.
Above-mentioned rapid pipe joint, spool comprise with the corresponding guide pin bushing of runner inner wall, valve core head, are connected the connecting body of guide pin bushing and valve core head, and the external diameter of connecting body and valve core head is all less than the runner internal diameter; Have fluid through-hole in connecting body, an end of fluid through-hole communicates with the endoporus of guide pin bushing, and the other end of fluid through-hole is opened on the periphery of connecting body; Has the spool conical seal (contact) face on valve core head.This spool is owing to having guide pin bushing, and movement direction is better vertically to make spool; Fluid through-hole can make the flow mistake.
Description of drawings
Fig. 1 is the schematic diagram of female joint.
Fig. 2 is the stereogram of mandrel.
Fig. 3 is the schematic diagram of tool joint pin.
Fig. 4 is the stereogram of spool.
Fig. 5 is the schematic diagram of rapid pipe joint.
Embodiment
Referring to Fig. 5, this rapid pipe joint, it comprises be connected a female joint 100 and a tool joint pin 200.
Be provided with core retainer plate conical seal (contact) face 35 on the core retainer plate right side.The left end of mandrel 4 is fixing silently 5, and right-hand member passes the core retainer plate center hole and formed the jut 41 with mandrel conical seal (contact) face 45, is provided with seal ring 92 between jut 41 and mandrel right side.Seal ring 92 contacts with the core retainer plate conical seal (contact) face with mandrel conical seal (contact) face 45 and form the sealing contact simultaneously.
Be provided with limited step in the main valve body fluid passage on core retainer plate right side, limit dais terrace 13 is C with distance between relative mandrel end.Referring to Fig. 2, relative with limit dais terrace mandrel has the groove 44 that radially extends on the right side, when mandrel moves, when the mandrel right side contacted with limit dais terrace 13, the fluid passage on right side, mandrel right side can communicate by groove 44 with the fluid passage in left side, mandrel right side.
Sliding sleeve 6 comprises polyurethane sleeve 61, is connected to the y-type seal ring 93 of polyurethane sleeve 61 right-hand members, spring housing 62, be connected to the vexed cover 63 of spring housing 62 left ends etc.Polyurethane sleeve 61 is fixed on the periphery of vexed cover and spring housing, and y-type seal ring 93 is fixed on the periphery of spring housing.O type circle 94 is set between polyurethane sleeve 61 and y-type seal ring 93.The periphery of polyurethane sleeve 61 and y-type seal ring 93 all contacts with the fluid passage inner wall sealing of auxiliary valve body.Be provided with o RunddichtringO 95 on this polyurethane sleeve left side.
Silently 5 periphery has silently conical seal (contact) face 55.The left end endoporus of vexed cover has the sliding sleeve conical seal (contact) face 65 that coordinates with conical seal (contact) face 55 silently.
Sliding sleeve is sleeved on mandrel and can endwisely slipping along mandrel; Sliding sleeve and the jut 41 with mandrel conical seal (contact) face lay respectively at the both sides of core retainer plate.Be provided with spiral compression spring 99 between the left end of the spring housing 62 of sliding sleeve and core retainer plate, the trend that this spiral compression spring 99 makes sliding sleeve have when normality to be moved to the left, thereby make sliding sleeve with silently the sealing contact, simultaneously, the elastic force of spiral compression spring 99 also makes by sliding sleeve silently has the trend that is moved to the left, thereby make fixing mandrel silently have the trend that is moved to the left, like this, mandrel mandrel when normality contacts with the core retainer plate sealing.Thus, spiral compression spring 99 make simultaneously when normality sliding sleeve with silently seal contact, the sealing of mandrel and core retainer plate contacts.
Positioning means comprises overcoat 301, nine balls 302, spring 303 etc.Being provided with in the auxiliary valve body periphery can be along the axially movable overcoat 301 of mandrel, and the endoporus of overcoat has prominent ring 304; Has outstanding back-up ring 24 on the periphery of auxiliary valve body.Back-up ring is in the endoporus of overcoat; Back-up ring is in the left side of prominent ring, and relative at axial direction with prominent ring.Spring 303 is arranged between the left side of prominent ring right side and main valve body, and during normality, spring 303 makes the left side of prominent ring contact with the right side of back-up ring.Radially have nine through holes 25 along mandrel on auxiliary valve body.Circumferentially have at public valve body the ring-type V-shaped groove 74 that the cross section is V-arrangement.
In the time of need to docking tool joint pin with female joint, first overcome the axis of elasticity of spring 303 to the overcoat that moves right, make the outer prominent ring that puts at ball not in the radial direction, make ball radially moving freely.Then public valve body right-hand member is inserted in the circulation passage of auxiliary valve body, the right-hand member of public valve body first radially is pushed to ball in through hole 25 and back-up ring and the interval of dashing forward between encircling, along with continuing to insert, relative public valve body right side contacts with the polyurethane sleeve left side, and relative spool right side contacts with the mandrel left side.Put in place when public valve body moves to right, the right side of public valve body promotes sliding sleeve along the mandrel axis distance A that moves right, and spool promotes mandrel and moves right apart from B along the mandrel axis, and B is less than A; At this moment, the limit dais terrace contacts with the mandrel right side, V-shaped groove 74 at through hole 25 in same plane.Then, unclamp overcoat, make under the outer effect that is enclosed within spring 303 to move to left, until contact with back-up ring to prominent ring, the prominent promotion ball that encircles enters in through hole and V-shaped groove 74, completes docking operation.
after docking is completed, public valve body 7 inner flow passage 71 left ends are by collar 201 endoporus, spring cup 202 endoporus, guide pin bushing 81 endoporus, fluid through-hole 84, gap between valve core head periphery and runner inner wall, gap between spool conical seal (contact) face and valve seat conical seal (contact) face, the gap between conical seal (contact) face and vexed cover conical seal (contact) face silently, gap between the periphery of mandrel and vexed cover endoporus, gap between the periphery of mandrel and spring housing communicates with fluid passage in auxiliary valve body, fluid passage in auxiliary valve body is by the core retainer plate center hole, gap between core retainer plate conical seal (contact) face and mandrel conical seal (contact) face, gap between the flow channel inwall of mandrel right-hand member periphery and main valve body, groove 44 communicates with the flow channel right-hand member of main valve body.Like this, the left end of the right-hand member of fluid passage and runner has formed the passage of a perforation.In mated condition, o RunddichtringO 95 and y-type seal ring 93 prevent outward leakage; O type circle 94 prevents interior leakage.In mated condition, tool joint pin still can be rotated 360 ° around the axis of mandrel with respect to female joint, and keeps sealing, connects safe and reliable.When back-up ring encircles when axial direction contacts with prominent, ball is positioned at and is positioned at simultaneously v shape groove and through hole, under this state, because prominent ring has blocked ball in radial direction, the inclined-plane, both sides of v shape groove can not promote ball and make ball radially move, can not move axially so be provided with the public valve body of v shape groove, thereby make tool joint pin be locked in the state that docks with female joint.
In the time of need to extracting tool joint pin in the female joint, need the overcoat that first axially move right, make the outer prominent ring that puts at ball not in the radial direction, make ball radially moving freely.And then extract tool joint pin, a skew back face of v shape groove can promote ball and radially move, and makes ball leave in v shape groove and enters in interval between through hole and back-up ring and prominent the ring.
After extracting tool joint pin, tool joint pin makes again o RunddichtringO 96, spool conical seal (contact) face 85 all contact with 75 sealings of valve seat conical seal (contact) face under the effect of Compress Spring 203, has guaranteed that the fluid hose that is connected with the left end of tool joint pin can not leak.Certainly, female joint under the effect of spiral compression spring 99, make sliding sleeve with silently seal contact, the sealing of mandrel and core retainer plate contacts, and guaranteed that the fluid circuit that is connected with female joint can not leak.For female joint, when not inserting tool joint pin, female joint is connected with fluid circuit, and o type circle 91 and seal ring 92 have sealed an end of fluid circuit, even there is oil pressure also can not reveal.
With after female joint is docked, when joint was connected, the place that originally is in sealing under the state of access failure all was opened when tool joint pin, and pressure oil with regard to passing through this rapid pipe joint, is connected on other oil circuit like this.
Present technique can be described as a kind of ultra-high pressure quick coupling, and it has some features: 1. adopt the double-sealing mode, safe and reliable, internal structure is compact, and volume is light and handy, is easy to carry.2. female joint and tool joint pin are equipped with built-in shutoff valve, and during the partition joint, shutoff valve utilizes spring meeting autoshutdown to prevent liquid outflow, keeps the pressure in pipeline, and partition is simple, convenient operation.3. when two joints (tool joint pin and female joint) when being connected, without the fluid leaks phenomenon, sealability is high; Can 360 ° of rotations between two joints, and keep simultaneously tightness, connect safe and reliable.4. have interchangeability, can freely connect by a plurality of pipelines.Present technique is mainly used in high-pressure service pump, jack, fixture, hydraulic spanner, the products such as bolt tensioning jack.
Claims (10)
1. rapid pipe joint, it comprises be connected a female joint and a tool joint pin; It is characterized in that:
Female joint comprises the main-valve body with fluid passage; One end of fluid passage is used for being connected with fluid circuit, and the other end is used for inserting tool joint pin; Be provided with the core retainer plate that has center hole in the fluid passage, be provided with the core retainer plate conical seal (contact) face on the core retainer plate end face relative with fluid passage one end that is connected with fluid circuit; One end of mandrel is fixing silently, the other end of mandrel passes the core retainer plate center hole and be provided with the mandrel conical seal (contact) face that contacts with the sealing of core retainer plate conical seal (contact) face; Periphery silently has silently conical seal (contact) face; Sliding sleeve is sleeved on mandrel and can endwisely slipping along mandrel; One end of sliding sleeve has the sliding sleeve conical seal (contact) face that contacts with the sealing of conical seal (contact) face silently; Be provided with elastic element between sliding sleeve and main-valve body or core retainer plate, this elastic element make simultaneously when normality sliding sleeve with silently seal contact, the sealing of mandrel and core retainer plate contacts;
Tool joint pin comprises the public valve body with runner, and an end of runner is used for being connected with fluid hose; Be provided with the valve seat that has the hole in runner, the spool that can move along the runner axis is arranged in runner, spool seals by conical seal (contact) face with valve seat and contacts; The conical seal (contact) face of valve seat is relative with runner one end that is connected with fluid hose; Be provided with elastic component between public valve body and spool, this elastic component makes spool contact with valve base sealing when normality;
When public valve body one end that is not connected with fluid hose was inserted in the circulation passage of main-valve body, the public valve body end face that inserts in the fluid passage was relative with the sliding sleeve end face, and spool end is relative with end face of mandrel; The end face of public valve body promotes sliding sleeve along mandrel axis displacement distance A, and spool promotes mandrel along mandrel axis displacement distance B, and B is less than A; Thereby make between spool and valve seat, silently with sliding sleeve between, between mandrel and core retainer plate all no longer sealing contact, fluid passage and runner have been linked to be the passage of a perforation.
2. rapid pipe joint as claimed in claim 1 is characterized in that: be provided with limited step in the fluid passage, the limit dais terrace equals B with distance C between relative mandrel end; When spool promoted mandrel along mandrel axis displacement distance B, the limit dais terrace contacted with relative mandrel end.
3. rapid pipe joint as claimed in claim 1 is characterized in that: sliding sleeve comprises the polyurethane sleeve that periphery contacts with the fluid passage inner wall sealing and the vexed cover that arranges in the endoporus of polyurethane sleeve, described sliding sleeve conical seal (contact) face is arranged on vexed cover one end.
4. rapid pipe joint as claimed in claim 3 is characterized in that: the polyurethane sleeve end face is relative with public valve body end face in inserting the fluid passage, and is provided with the o RunddichtringO on this polyurethane sleeve end face.
5. rapid pipe joint as claimed in claim 4 is characterized in that: another end of polyurethane sleeve is connected with the y-type seal ring that periphery contacts with the fluid passage inwall.
6. rapid pipe joint as claimed in claim 1, it is characterized in that: be provided with positioning means on the main-valve body, when public valve body one end is inserted into the circulation passage of main-valve body and after promoting sliding sleeve and mandrel and moving, public valve body is connected along the positioning means that the mandrel axis moves with the public valve body of restriction.
7. rapid pipe joint as claimed in claim 6 is characterized in that: positioning means comprises overcoat, ball; Be provided with in external week of main-valve can be along the axially movable overcoat of mandrel, the endoporus of overcoat has prominent ring; Has outstanding back-up ring on the periphery of main-valve body; Back-up ring is in the endoporus of overcoat; Back-up ring is relative at axial direction with prominent ring; Radially have through hole along mandrel on the main-valve body, having the cross section on public valve body is the groove of V-arrangement; Relative back-up ring when axial direction contacts, is inserted into v shape groove, through hole, the prominent ring radially relative on the public valve body in the fluid passage with prominent ring, and ball is positioned at and is positioned at simultaneously v shape groove and through hole; At axial direction separately the time, public valve body can be with respect to the main-valve axon to movement when relative back-up ring and prominent ring, and the inclined-plane of v shape groove can promote ball and radially move in through hole and described interval.
8. rapid pipe joint as claimed in claim 7 is characterized in that: positioning means also comprise making on normality prominent ring with packing ring at axial contacted elastomer.
9. rapid pipe joint as claimed in claim 7 is characterized in that: v shape groove is to be looped around the circumferential annular slot of public valve body.
10. rapid pipe joint as claimed in claim 1 is characterized in that: be provided with the seal ring that contacts for the core retainer plate conical seal (contact) face on mandrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110411319XA CN103162036A (en) | 2011-12-12 | 2011-12-12 | Fast joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110411319XA CN103162036A (en) | 2011-12-12 | 2011-12-12 | Fast joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103162036A true CN103162036A (en) | 2013-06-19 |
Family
ID=48585373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110411319XA Pending CN103162036A (en) | 2011-12-12 | 2011-12-12 | Fast joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103162036A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2280238A (en) * | 1993-07-07 | 1995-01-25 | Nitto Kohki Co | Fluid connector |
| DE20118143U1 (en) * | 2001-10-11 | 2003-02-20 | Dart Engineering Ag Zug | Hydraulic or pneumatic line connector seal combines three different degrees of material hardnes |
| US20040238777A1 (en) * | 2003-06-02 | 2004-12-02 | Shih-Sheng Yang | Instantly-released joint for water conduits |
| CN201170407Y (en) * | 2008-01-29 | 2008-12-24 | 周纪昌 | Novel split type quick joint for air conditioner |
| CN201827565U (en) * | 2010-08-31 | 2011-05-11 | 宁波星箭航天机械厂 | Fast-connection joint |
| CN102128329A (en) * | 2011-03-10 | 2011-07-20 | 庄志军 | Plunger type pneumatic quick change coupler |
-
2011
- 2011-12-12 CN CN201110411319XA patent/CN103162036A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2280238A (en) * | 1993-07-07 | 1995-01-25 | Nitto Kohki Co | Fluid connector |
| DE20118143U1 (en) * | 2001-10-11 | 2003-02-20 | Dart Engineering Ag Zug | Hydraulic or pneumatic line connector seal combines three different degrees of material hardnes |
| US20040238777A1 (en) * | 2003-06-02 | 2004-12-02 | Shih-Sheng Yang | Instantly-released joint for water conduits |
| CN201170407Y (en) * | 2008-01-29 | 2008-12-24 | 周纪昌 | Novel split type quick joint for air conditioner |
| CN201827565U (en) * | 2010-08-31 | 2011-05-11 | 宁波星箭航天机械厂 | Fast-connection joint |
| CN102128329A (en) * | 2011-03-10 | 2011-07-20 | 庄志军 | Plunger type pneumatic quick change coupler |
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Application publication date: 20130619 |