WO2014044002A1 - 承插式管道接口 - Google Patents

承插式管道接口 Download PDF

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Publication number
WO2014044002A1
WO2014044002A1 PCT/CN2012/086359 CN2012086359W WO2014044002A1 WO 2014044002 A1 WO2014044002 A1 WO 2014044002A1 CN 2012086359 W CN2012086359 W CN 2012086359W WO 2014044002 A1 WO2014044002 A1 WO 2014044002A1
Authority
WO
WIPO (PCT)
Prior art keywords
socket
block
pipe joint
type pipe
ring
Prior art date
Application number
PCT/CN2012/086359
Other languages
English (en)
French (fr)
Inventor
张同波
李军
徐军
刘俊锋
董建忠
赵福恩
刘志丽
王云峰
孔国滨
贾清波
Original Assignee
新兴铸管股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 新兴铸管股份有限公司 filed Critical 新兴铸管股份有限公司
Priority to EA201490593A priority Critical patent/EA024388B8/ru
Priority to BR112014003294-7A priority patent/BR112014003294B1/pt
Priority to AU2012380418A priority patent/AU2012380418B2/en
Priority to EP12882885.2A priority patent/EP2749803B1/en
Publication of WO2014044002A1 publication Critical patent/WO2014044002A1/zh

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Classifications

    • 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
    • F16L21/00—Joints with sleeve or socket
    • F16L21/08—Joints with sleeve or socket with additional locking means

Definitions

  • the present invention relates to a socket type pipe interface, and in particular to a socket type pipe interface having an anchor structure.
  • the socket-type pipe interface with anchoring structure is simple in structure and convenient to install. It has a wide range of applications in the fields of municipal engineering, oil and gas transmission, etc.
  • the anchoring structure is the socket-type pipe interface of the block, which is favored by the majority of users.
  • Such an interface generally includes a socket and a socket, and a retaining ring is provided on the socket. After the socket is inserted into the socket, a stopper is inserted, and the socket is anchored in the socket through the stopper.
  • CN102297297A discloses a socket type pipe joint having an anchoring structure, and the pipe joint has a stopper mounting hole on the socket, and the stopper is inserted into the socket from the stopper mounting hole, and the block is opened on the socket.
  • the block mounting hole not only complicates the manufacturing process of the pipe, but also increases the manufacturing cost.
  • the block mounting hole also has a splitting effect on the socket, resulting in a decrease in the bearing strength of the socket. Summary of the invention
  • An object of the present invention is to provide a socket type pipe joint which can simplify a manufacturing process, reduce manufacturing costs, and improve load bearing strength.
  • a socket type pipe joint comprising a socket and a socket, wherein an end portion of the socket extends radially inward to form an annular wall portion, and an outer wall of the socket near the end portion is provided a socket welding ring is provided with a stopper device between the socket and the socket, the stopper device includes a plurality of front blocks and a plurality of rear blocks, the front end of the front block is a front abutting end, and the rear end is a front end
  • the front protruding end of the rear protruding end is provided with first and second front abutting faces which are symmetric with each other, the rear end of the rear block is a rear abutting end, and the front end is convex from the rear to the front.
  • a rear fitting end wherein the rear bonding end is provided with first and second rear bonding surfaces that are symmetric with each other, the first front bonding surface and the second rear bonding surface are parallel to each other, and the second front bonding surface is first
  • the rear abutting faces are parallel to each other, and a plurality of front and rear stops are alternately arranged to form an annular shape, and a front abutting end of the plurality of front stoppers abuts against the annular wall portion of the socket, and a plurality of rear stops abuts The abutting end abuts against the socket ring of the socket, and the first and second front bonding surfaces on each front block
  • the second and first rear bonding surfaces on the rear stoppers on both sides are closely adhered to each other.
  • the socket-type pipe joint of the present invention wherein the first front bonding surface and the second rear bonding surface, the second front bonding surface and the first rear bonding surface are inclined surfaces, and the inclined surfaces are The angle ⁇ with the cross section of the cast tube is 9 ° -60 °.
  • Replacement page (Article 26)
  • the socket-type pipe interface of the present invention wherein the first and second front bonding faces are respectively provided with first and second bosses, and the first and second rear bonding faces are respectively provided with first and second Two ribs, the first rib is fastened on the second boss, and the second rib is fastened on the first boss.
  • the socket type pipe joint of the present invention wherein a transition arc is arranged between the front abutting end and the outer surface of the front block, and a transition slope is provided between the front abutting end and the inner surface of the front block.
  • the angle ⁇ between the transition slope and the cross section of the cast pipe is 20° -70.
  • the socket type pipe joint of the present invention wherein the rear block is provided with first and second sides inclined from the rear fitting end toward the inner end surface Transitional slope.
  • the socket-type pipe interface of the present invention wherein the angle between the plane of the first and second front bonding faces and the plane of the front abutting end is 20° - 60°, the first and second The angle between the plane of the mating surface and the plane of the rear abutting end is ⁇ , which is 20. -60°.
  • each of the rear block and the inner wall of the socket is respectively provided with a block support ring
  • the block support ring is made of an elastic material
  • the rear block is The rear abutting end is provided with a fixing hole
  • the front end surface of the block supporting ring is provided with a fixing protrusion
  • the fixing protrusions of each block supporting ring are respectively disposed in the fixing hole of one rear block, and several blocks
  • the block support ring forms a closed loop, the outer diameter of the closed loop being greater than the inner diameter of the socket.
  • the socket type pipe joint of the present invention wherein the outer diameter of the closed ring is at most 1.03 times the inner diameter of the socket.
  • the upper and lower surfaces of the fixing protrusion are inclined surfaces inclined from the back to the front, and the angle ⁇ ' between the inclined surface and the axis of the casting pipe is 3 degrees.
  • each of the block support rings is provided with two connecting grooves on one end of the casting pipe in the circumferential direction, and two connecting protrusions on the other end, one block supporting ring
  • the two connecting protrusions are respectively disposed in two connecting grooves on the adjacent block supporting ring.
  • a plurality of protrusions are arranged on the rear end surface of the block support ring.
  • the front end surface of the block support ring is provided with a groove extending along the length direction of the block support ring and above the fixed protrusion.
  • the socket type pipe joint of the present invention wherein an annular ring support ring is disposed between the rear block and the inner wall of the socket, the annular block support ring is made of an elastic material, and the rear block is a fixing hole is disposed on the rear abutting end of the block, and a plurality of fixing protrusions are respectively disposed at a front end surface of the annular block support ring, and each of the fixing protrusions is respectively disposed in a fixing hole of a rear block,
  • the outer diameter of the annular stop support ring is greater than or equal to the inner diameter of the socket.
  • the socket type pipe joint of the present invention has front and rear stops in the socket, and the front and rear stops are attached to each other and can move relative to each other along the fitting surface, thereby avoiding opening at the socket portion.
  • the stopper mounting hole simplifies the manufacturing process, reduces the manufacturing cost, and improves the bearing strength of the socket.
  • the socket welding is performed during the insertion of the socket into the socket.
  • the force of the ring on the rear block generates a component force that abuts the front block against the annular wall portion of the socket, so that the front block and the inner wall of the socket closely fit together; the first and second transition slopes on the rear block
  • the socket weld ring is more easily passed; the first rib is fastened to the second boss, and the second rib is fastened to the first boss to make the pipe joint connection more stable.
  • a transition arc is arranged between the front abutting end and the outer surface of the front block to prevent damage to the pipe due to stress concentration, and a transition slope is provided between the front abutting end and the inner surface of the front block to facilitate insertion of the socket.
  • the angle between the plane of the first and second front bonding faces of the front block and the plane of the front abutting end is 20° - 60°, and the planes of the first and second rear bonding faces of the rear block are rear and rear.
  • the angle between the plane of the abutting end is ⁇ is 20° -60°, which can make the movement of the block through the position when the interface is deflected can fully adapt to the change of the gap, ensuring that each block is in working condition.
  • a retaining ring is also provided in the socket to ensure that the front and rear stops are fixed in the socket before the socket is placed in the socket, and the rear block and the outer wall of the socket are supported by the support ring of the block. Closely fit.
  • the upper and lower surfaces of the fixing lug on the retaining ring of the block are inclined surfaces, which makes the fixing of the fixing lug easier.
  • the rear end surface of the retaining ring of the retaining ring is provided with a plurality of protrusions, which makes the deformation of the entire retaining ring easier. It is convenient for the socket welding ring to pass; each of the support ring of the block has two connection grooves at one end, and two connection protrusions at the other end, and two connection protrusions on one support ring of the block are respectively disposed adjacent to each other The two connection grooves on the block support ring make the pipe interface connection more stable.
  • Figure 1 is a left side view of the socketed pipe joint of the present invention
  • Figure 2 is a cross-sectional view taken along the line ⁇ - ⁇ of Figure 1;
  • Figure 3 is a partial enlarged view of C in Figure 2;
  • Figure 4 is a layout view of the stopper device in the socket type pipe joint of the present invention.
  • Figure 5 is a cross-sectional view taken along line A- ⁇ of Figure 4; replacement page (Article 26)
  • Figure 6 is a partial enlarged view of B in Figure 5;
  • Figure 7a is a perspective view of the front stop in the socket type pipe joint of the present invention.
  • Figure 7b is a top plan view of the front stop in the socketed pipe joint of the present invention.
  • Figure 7c is a cross-sectional view taken along line A-A of Figure 7b;
  • Figure 8a is a perspective view of the rear stop of the socket type pipe joint of the present invention.
  • Figure 8b is a top plan view of the rear stop of the socket type pipe joint of the present invention.
  • Figure 8c is a cross-sectional view taken along line A-A of Figure 8b;
  • Figure 9a is a perspective view of the support ring of the socket in the socket type pipe joint of the present invention.
  • Figure 9b is a plan view of the support ring of the socket in the socket type pipe joint of the present invention.
  • Figure 9c is a cross-sectional view taken along the line A-A of Figure %.
  • a socket type pipe joint includes a socket 1, a socket 2, and an end portion of the socket 1 extends radially inward to form an annular wall portion 11, and the socket 2 is adjacent to the outer wall at the end portion.
  • a socket welding ring 21 is provided, and a stopper device 3 is provided between the socket 1 and the socket 2.
  • the stopper device 3 includes a front stopper 31 and a rear stopper 32, as shown in Figs.
  • the front stopper 31 The front end is a front abutting end 311, the rear end is a front abutting end 312 protruding from the front to the rear, and the front abutting end 312 is provided with first and second front abutting surfaces 313, 314 which are symmetric with each other, the front end block
  • the middle portion of the 31 is provided with a through hole 317.
  • the rear end of the rear block 32 is a rear abutting end 321
  • the front end is a rear abutting end 322 protruding from the rear to the front, and the rear end end 322 is provided.
  • the first front and second rear bonding surfaces 313 and 324 are mutually symmetrical, and the first front bonding surface 313 and the second rear bonding surface 324 are parallel to each other, and the second front bonding surface 314 and the first rear bonding surface 323 are 323.
  • Parallel to each other as shown in Figures 4, 5 and 6, a plurality of front and rear stops 31, 32 are alternately arranged to form an annular shape, and the front abutting ends 311 of the plurality of front stops 31 abut.
  • the rear abutting ends 321 of the plurality of rear blocks 32 abut against the socket weld rings 21 of the socket 2, and the first and second front fittings on each of the front stoppers 31
  • the faces 313 and 314 are respectively closely adhered to the second and first rear abutting faces 324 and 323 on the rear stoppers 32 on both sides, as shown in FIGS. 3, 6, and 7c, and the front of the front stopper 31.
  • a transition arc 318 is disposed between the abutting end 311 and the outer surface, and a transition slope 319 is disposed between the front abutting end 311 of the front block 31 and the inner surface, and the angle ⁇ between the transition slope 319 and the cross section of the cast tube is 20. -70°, as shown in Fig. 7a and Fig. 8a, the angle ⁇ between the plane where the first and second front bonding surfaces 313 and 314 are located and the plane where the front abutting end 311 is located is 20. -60°, the angle between the plane of the first and second rear bonding surfaces 323 and 324 and the plane of the rear abutting end 321 is ⁇ of 20° - 60°.
  • the rear bonding surfaces 323 are inclined surfaces parallel to each other, and the angles ⁇ of the inclined surfaces and the cross section of the cast tube are both 9° - 60°.
  • First and second protrusions 315 and 316 are respectively disposed on the first and second front bonding surfaces 313 and 314, and the first and second ribs are respectively disposed on the first and second rear bonding surfaces 323 and 324.
  • 325, 326, the first rib 325 is fastened on the second boss 316.
  • the second rib 326 is fastened to the first boss 315.
  • the rear stopper 32 is provided with first and second transition slopes 327 and 328 which are inclined from the rear fitting end 322 toward the inner end surface.
  • each of the rear stopper 32 and the inner wall of the socket 1 is further provided with a stopper support ring 33, and the stopper support ring 33 is made of rubber or other elasticity.
  • the rear abutting end 321 of the rear block 32 is provided with a fixing hole 320.
  • the front end surface of the block supporting ring 33 is provided with a fixing protrusion 331, and each block is provided.
  • the fixing protrusions 331 of the block support ring 33 are respectively disposed in the fixing holes 320 of the rear block 32, and the plurality of block support rings 33 form a closed ring.
  • the outer diameter of the closing ring is greater than or equal to the inner diameter of the socket 1, and the closed ring ⁇
  • the maximum value of the outer diameter of the socket 1 is 1. 03 times.
  • the upper and lower surfaces of the fixing protrusion 331 are inclined surfaces inclined from the back to the front, and the angle ⁇ between the inclined surface and the axis of the casting tube is 3 degrees, as shown in FIG. 9b.
  • One end of the stopper support ring 33 along the circumferential direction of the cast pipe is provided with two connecting grooves 332, and the other end is provided with two connecting protrusions 333, and two connecting protrusions on one of the block supporting rings are respectively disposed adjacent to each other.
  • two connecting grooves on the support ring of the block as shown in FIG. 9a and FIG.
  • a plurality of protrusions 334 are arranged on the rear end surface of the block support ring 33, and the front end surface of the block support ring 33 is provided.
  • the groove 335 extends along the length direction of the stopper support ring 33 and is located above the fixed projection 331.
  • the plurality of block support rings 33 forming the closed ring may also be replaced by an annular block support ring, which is made of an elastic material, and the front end faces of the ring block support ring are provided with a plurality of fixings.
  • the bumps are respectively disposed in the fixing holes 320 of the rear block 32.
  • the outer diameter of the annular block support ring is greater than or equal to the inner diameter of the socket 1, and the outer diameter of the annular block support ring is the largest. The value is 1. 03 times the inner diameter of the socket 1.
  • the front and rear stops 31, 32 and the block support ring 33 are first placed in the socket 1 of a pipe, and the socket 2 of the other pipe is placed in the socket 1 of the pipe, when the socket 2
  • the socket weld ring 21 contacts the rear block 32, during the insertion process, the socket weld ring 21 pushes the rear block 32 to move upward relative to the front block 31, so that the socket weld ring 21 passes, in motion.
  • the socket welding ring 21 is rearward.
  • the force of the stopper 32 generates a component force that urges the front stopper 31 toward the annular wall portion 11 of the socket 1, and the first and second transition slopes 327, 328 on the rear stopper 32 make the socket weld ring 21 more It is easy to pass, the rear stopper 32 drives the fixing projection 331 of the stopper support ring 33 to deform, and the stopper support ring 33 abuts against the inner wall of the socket 1 to fix the replacement page (Article 26)
  • the upper and lower surfaces of the protrusion 331 are inclined surfaces, which make the fixing protrusion 331 deform more easily.
  • the rear end surface of the block support ring 33 is spaced apart from the plurality of protrusions 334, so that the entire block support ring 33 is deformed more easily.
  • the socket weld ring 21 is facilitated to pass. After the socket weld ring 21 passes through the rear block 32, the rear block 32 falls down and is attached to the outer wall of the socket 2 and the socket weld ring 21 by the support of the retaining ring support ring 33.
  • the rib 325 is fastened to the second boss 316, and the second rib 326 is fastened to the first boss 315 to make the pipe interface connection more stable.
  • the socket type pipe joint of the invention can be used in the fields of municipal engineering, oil transportation and gas transmission, etc., which avoids opening a block mounting hole in the pipe socket portion, simplifies the manufacturing process, reduces the manufacturing cost, and improves the bearing strength of the socket. , has a high industrial applicability.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Joints With Sleeves (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Joints Allowing Movement (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

一种承插式管道接口，包括承口（1）、插口（2），承口（1）的端部径向向内延伸形成环形壁部（11），插口（2）靠近端部处外壁设有插口焊环（21），承口（1）和插口（2）之间设有挡块装置（3），挡块装置（3）包括前挡块（31）、后挡块（32），所述前挡块（31）前端为前抵靠端（311），后端为前贴合端（312），前贴合端（312）上设有第一、第二前贴合面（313、314），后挡块（32）后端为后抵靠端（321），前端为后贴合端（322），后贴合端（322）上设有第一、第二后贴合面（323、324），若干个前、后挡块（31、32）交替设置形成环状，并且若干个前挡块（31）的前抵靠端（311）抵靠在承口（1）的环形壁部（11）上，若干个后挡块（32）的后抵靠端（321）抵靠在插口（2）的插口焊环（21）上，每个前挡块（31）上的第一、第二前贴合面（313、314）分别与两侧的后挡块（32）上的第二、第一后贴合面（324、323）相互紧密贴合。所述承插式管道接口可以简化制造工艺、降低制造成本，并且提高承载强度。

Description

承插式管道接口
技术领域
本发明涉及一种承插式管道接口， 具体涉及一种具有锚固结构的承插式管道接口 背景技术
具有锚固结构的承插式管道接口结构简单， 安装方便， 在市政工程、 输油输气等领域有 广泛的应用， 其中锚固结构为挡块的承插式管道接口更是受到广大用户的青睐。 这种接口一 般包括承口和插口， 在插口上设置挡环， 将插口插入承口中后， 插入挡块， 通过挡块将插口 锚固在承口中。如中国专利文献 CN102297297A公开了一种具有锚定结构的承插式管道接口， 该管道接口在承口上开有挡块安装孔， 挡块从挡块安装孔放入承口内， 在承口上开设挡块安 装孔， 不仅使管道的制造工艺复杂， 导致制造成本提高， 而且， 挡块安装孔还对承口有割裂 作用， 导致承口的承载强度降低。 发明内容
本发明的目的是提供一种承插式管道接口， 其可以简化制造工艺、 降低制造成本， 并且 提高承载强度。
为了实现上述目的， 本发明的技术解决方案为： 一种承插式管道接口， 包括承口、插口， 承口的端部径向向内延伸形成环形壁部， 插口靠近端部处外壁设有插口焊环， 承口和插口之 间设有挡块装置， 所述挡块装置包括若干前挡块、 若干后挡块， 所述前挡块的前端为前抵靠 端， 后端为自前向后凸出的前贴合端， 前贴合端上设有相互对称的第一、 第二前贴合面， 后 挡块的后端为后抵靠端，前端为自后向前凸出的后贴合端，后贴合端上设有相互对称的第一、 第二后贴合面， 第一前贴合面与第二后贴合面相互平行， 第二前贴合面与第一后贴合面相互 平行， 若干个前、 后挡块交替设置形成环状， 并且若干个前挡块的前抵靠端抵靠在承口的环 形壁部上， 若干个后挡块的后抵靠端抵靠在插口的插口悍环上， 每个前挡块上的第一、 第二 前贴合面分别与两侧的后挡块上的第二、 第一后贴合面相互紧密贴合。
本发明承插式管道接口， 其中， 所述第一前贴合面与第二后贴合面及第二前贴合面与第 一后贴合面均为倾斜面， 并且所述各倾斜面与铸管横截面的夹角 Θ均为 9 ° -60° 。 替换页 （细则第 26条) 本发明承插式管道接口， 其中， 所述第一、 第二前贴合面上分别设有第一、 第二凸台， 第一、 第二后贴合面上分别设有第一、 第二凸棱， 所述第一凸棱卡固在第二凸台上， 第二凸 棱卡固在第一凸台上。
本发明承插式管道接口， 其中， 所述前挡块的前抵靠端与外表面之间设有过渡圆弧， 前 挡块的前抵靠端与内表面之间设有过渡斜面，所述过渡斜面与铸管横截面的夹角 α为 20° -70 本发明承插式管道接口， 其中， 所述后挡块上设有自后贴合端向内端面倾斜的第一、 第 二过渡斜面。
本发明承插式管道接口， 其中， 所述第一、 第二前贴合面所在平面与前抵靠端所在平面 的夹角 β均为 20° -60° ，所述第一、第二后贴合面所在平面与后抵靠端所在平面的夹角为 ω 均为 20。 -60° 。
本发明承插式管道接口， 其中， 所述每个后挡块与承口的内壁之间分别设有一个挡块支 撑圈， 所述挡块支撑圈由弹性材料制成， 所述后挡块的后抵靠端上设有固定孔， 所述挡块支 撑圈前端面设有固定凸块， 每个挡块支撑圈的固定凸块分别设于一个后挡块的固定孔内， 若 干个挡块支撑圈形成封闭环， 所述封闭环的外径大于所述承口的内径。
本发明承插式管道接口， 其中， 所述封闭环的外径最大为所述承口的内径的 1. 03倍。 本发明承插式管道接口， 其中，所述固定凸块的上、下表面均为自后向前倾斜的倾斜面， 该倾斜面与铸管轴线的夹角 α '为 3度。
本发明承插式管道接口， 其中， 所述每个挡块支撑圈上沿铸管周向的一端设有两个连接 凹槽, 另一端设有两个连接凸块， 一个挡块支撑圈上的两个连接凸块分别设于相邻挡块支撑 圈上的两个连接凹槽内。
本发明承插式管道接口， 其中， 所述挡块支撑圈的后端面上间隔设有若干个突起。
本发明承插式管道接口， 其中， 所述挡块支撑圈的前端面上设有凹槽， 凹槽沿挡块支撑 圈的长度方向延伸并且位于固定凸块的上方。
本发明承插式管道接口，其中，所述后挡块与承口的内壁之间设有一个环状挡块支撑圈， 所述环状挡块支撑圈由弹性材料制成， 所述后挡块的后抵靠端上设有固定孔， 所述环状挡块 支撑圈前端面间隔设有若干个固定凸块， 每个固定凸块分别设于一个后挡块的固定孔内， 所 述环状挡块支撑圈的外径大于或等于所述承口的内径。 替换页 （细则第 26条) 本发明承插式管道接口，其中，所述环状挡块支撑圈的外径最大为所述承口的内径的 1. 03 倍。
采用上述方案后， 本发明承插式管道接口由于在承口内设有前、 后挡块， 前、 后挡块相 互贴合并且可沿贴合面相对运动， 因此避免了在承口部位开设挡块安装孔，简化了制造工艺、 降低制造成本， 并且使承口的承载强度提高。
另外， 由于第一前贴合面与第二后贴合面及第二前贴合面与第一后贴合面均为相互平行 的倾斜面， 因此在插口插入承口内的过程中， 插口焊环对后挡块的作用力产生使前挡块向承 口的环形壁部抵靠的分力， 使前挡块与承口内壁紧密贴合； 后挡块上的第一、 第二过渡斜面 使插口焊环更容易通过； 第一凸棱卡固在第二凸台上， 第二凸棱卡固在第一凸台上， 使管道 接口连接更稳定。
前挡块的前抵靠端与外表面之间设有过渡圆弧， 防止因应力集中对管道造成损坏， 前挡 块的前抵靠端与内表面之间设有过渡斜面， 便于插口插入。
前挡块的第一、第二前贴合面所在平面与前抵靠端所在平面的夹角 β为 20° -60° ，后挡 块的第一、第二后贴合面所在平面与后抵靠端所在平面的夹角为 ω为 20° -60° ，可以使接口 偏转时挡块通过位置移动能充分适应间隙的变化， 保证每一个挡块都处在工作状态。
还有， 承口内还设有挡块支撑圈， 保证在插口置入承口内之前， 前、 后挡块已固定在承 口内， 并且在挡块支撑圈的作用下， 使后挡块与插口外壁紧密贴合。
挡块支撑圈上固定凸块的上、 下表面均为倾斜面， 使固定凸块变形更容易， 挡块支撑圈 的后端面上间隔设有若干个突起， 使整个挡块支撑圈变形更容易， 便于插口焊环通过； 每个 挡块支撑圈一端设有两个连接凹槽， 另一端设有两个连接凸块， 一个挡块支撑圈上的两个连 接凸块分别设于相邻挡块支撑圈上的两个连接凹槽内， 使管道接口连接更稳定。 附图说明
图 1是本发明承插式管道接口的左视图；
图 2是图 1的 Β-Β向剖视图；
图 3是图 2中 C处的局部放大图；
图 4是本发明承插式管道接口中挡块装置的排列图；
图 5是图 4的 A- Α向剖视图； 替换页 （细则第 26条) 图 6是图 5中 B处的局部放大图；
图 7a是本发明承插式管道接口中前挡块的立体图；
图 7b是本发明承插式管道接口中前挡块的俯视图；
图 7c是图 7b的 A-A向剖视图；
图 8a是本发明承插式管道接口中后挡块的立体图；
图 8b是本发明承插式管道接口中后挡块的俯视图；
图 8c是图 8b的 A- A向剖视图；
图 9a是本发明承插式管道接口中挡块支撑圈的立体图；
图 9b是本发明承插式管道接口中挡块支撑圈的俯视图；
图 9c是图％的 A-A向剖视图。
下面结合附图具体说明本发明承插式管道接口。
具体实施方式
如图 1、 2、 3所示， 一种承插式管道接口， 包括承口 1、 插口 2， 承口 1的端部径向向内延 伸形成环形壁部 11，插口 2靠近端部处外壁设有插口焊环 21，承口 1和插口 2之间设有挡块装置 3, 挡块装置 3包括前挡块 31、 后挡块 32, 如图 7a、 7b所示， 前挡块 31的前端为前抵靠端 311， 后端为自前向后凸出的前贴合端 312,前贴合端 312上设有相互对称的第一、第二前贴合面 313、 314， 前挡块 31中部设有通孔 317， 如图 8a所示， 后挡块 32的后端为后抵靠端 321， 前端为自后 向前凸出的后贴合端 322， 后贴合端 322上设有相互对称的第一、 第二后贴合面 323、 324, 第 一前贴合面 313与第二后贴合面 324相互平行，第二前贴合面 314与第一后贴合面 323相互平行， 如图 4、 5、 6所示， 若干个前、 后挡块 31、 32交替设置形成环状， 并且若干个前挡块 31的前抵 靠端 311抵靠在承口 1的环形壁部 11上， 若干个后挡块 32的后抵靠端 321抵靠在插口 2的插口焊 环 21上， 每个前挡块 31上的第一、 第二前贴合面 313、 314分别与两侧的后挡块 32上的第二、 第一后贴合面 324、 323相互紧密贴合， 如图 3、 图 6、 图 7c所示， 前挡块 31的前抵靠端 311与外 表面之间设有过渡圆弧 318，前挡块 31的前抵靠端 311与内表面之间设有过渡斜面 319，过渡斜 面 319与铸管横截面的夹角 α为 20。 -70° ，如图 7a、图 8a所示，第一、第二前贴合面 313、 314 所在平面与前抵靠端 311所在平面的夹角 β均为 20。 -60° ， 第一、 第二后贴合面 323、 324所 在平面与后抵靠端 321所在平面的夹角为 ω均为 20° -60° 。
如图 7a、图 8a、 8c所示， 第一前贴合面 313与第二后贴合面 324及第二前贴合面 314与第一 替换页 （细则第 26条) 后贴合面 323均为相互平行的倾斜面，并且各倾斜面与铸管横截面的夹角 Θ均为 9° -60° 。第 ―、 第二前贴合面 313、 314上分别设有第一、 第二凸台 315、 316， 第一、 第二后贴合面 323、 324上分别设有第一、 第二凸棱 325、 326, 第一凸棱 325卡固在第二凸台 316上， 如图 6所示， 第二凸棱 326卡固在第一凸台 315上。
如图 6及图 8b、 图 8c所示， 后挡块 32上设有自后贴合端 322向内端面倾斜的第一、 第二过 渡斜面 327、 328。
如图 2、 图 4、 图 5、 图 6所示， 每个后挡块 32与承口 1的内壁之间还分别设有一个挡块支撑 圈 33，挡块支撑圈 33由橡胶或其他弹性材料制成，后挡块 32的后抵靠端 321上设有固定孔 320， 如图 9a、 图 9b、 图 9c所示， 挡块支撑圈 33前端面设有固定凸块 331， 每个挡块支撑圈 33的固定 凸块 331分别设于一个后挡块 32的固定孔 320内， 若干个挡块支撑圈 33形成封闭环， 封闭环的 外径大于或等于承口 1的内径， 封闭环外径的最大值为承口 1内径的 1. 03倍。
如图 9c所示， 固定凸块 331的上、下表面均为自后向前倾斜的倾斜面， 该倾斜面与铸管轴 线的夹角 α，为 3度， 如图 9b所示， 每个挡块支撑圈 33上沿铸管周向的一端设有两个连接凹槽 332， 另一端设有两个连接凸块 333， 一个挡块支撑圈上的两个连接凸块分别设于相邻挡块支 撑圈上的两个连接凹槽内， 如图 9a、 图 9c所示， 挡块支撑圈 33的后端面上间隔设有若干个突 起 334,挡块支撑圈 33的前端面上设有凹槽 335， 凹槽 335沿挡块支撑圈 33的长度方向延伸并且 位于固定凸块 331的上方。
上述若干个形成封闭环状的挡块支撑圈 33还可由一个环状挡块支撑圈代替， 环状挡块支 撑圈由弹性材料制成， 环状挡块支撑圈前端面间隔设有若干个固定凸块， 每个固定凸块分别 设于一个后挡块 32的固定孔 320内， 环状挡块支撑圈的外径大于或等于承口 1的内径， 环状挡 块支撑圈外径的最大值为承口 1内径的 1. 03倍。
安装时， 先将前、后挡块 31、 32及挡块支撑圈 33置入一管道的承口 1内， 再将另一管道的 插口 2置入上述管道的承口 1内， 当插口 2的插口焊环 21接触到后挡块 32时 ，在置入的过程中， 插口焊环 21推动后挡块 32相对前挡块 31沿贴合面向上运动， 使插口焊环 21通过， 在运动过程 中， 由于第一前贴合面 313与第二后贴合面 324及第二前贴合面 314与第一后贴合面 323均为相 互平行的倾斜面，因此插口焊环 21对后挡块 32的作用力产生使前挡块 31向承口 1的环形壁部 11 抵靠的分力， 并且后挡块 32上的第一、 第二过渡斜面 327、 328使插口焊环 21更容易通过， 后 挡块 32带动挡块支撑圈 33的固定凸块 331变形， 并使挡块支撑圈 33向承口 1的内壁抵靠， 固定 替换页 （细则第 26条) 凸块 331的上、 下表面均为倾斜面， 使固定凸块 331变形更容易， 挡块支撑圈 33的后端面上间 隔设有若干个突起 334, 使整个挡块支撑圈 33变形更容易，便于插口焊环 21通过， 当插口焊环 21通过后挡块 32后， 在挡环支撑圈 33的推动下， 后挡块 32下落与插口 2的外壁及插口焊环 21 相贴合， 第一凸棱 325卡固在第二凸台 316上， 第二凸棱 326卡固在第一凸台 315上， 使管道接 口连接更稳定。
以上所述实施例仅仅是对本发明的优选实施方式进行描述， 并非对本发明的范围进行限 定， 在不脱离本发明设计精神的前提下， 本领域普通工程技术人员对本发明的技术方案作出 的各种变形和改进， 均应落入本发明的权利要求书确定的保护范围内。
工业实用性
本发明承插式管道接口可用于市政工程、 输油输气等领域， 其避免了在管道承口部位开 设挡块安装孔， 简化了制造工艺、 降低制造成本， 并且使承口的承载强度提高， 具有很高的 工业实用性。
替换页 （细则第 26条)

Claims

权 利 要 求 、 一种承插式管道接口， 包括承口 （1 )、 插口 （2)， 承口 （1 ) 的端部径向向内延伸形成环 形壁部 （11 )， 插口 （2)靠近端部处外壁设有插口焊环 （21 )， 承口 （1 )和插口 （2)之 间设有挡块装置（3)， 其特征在于： 所述挡块装置（3)包括若干前挡块（31 )、若干后挡 块（32)， 所述前挡块 （31 ) 的前端为前抵靠端 （311 ), 后端为自前向后凸出的前贴合端
(312),前贴合端（312)上设有相互对称的第一、第二前贴合面（313、 314),后挡块（32) 的后端为后抵靠端 （321)， 前端为自后向前凸出的后贴合端（322), 后贴合端（322)上 设有相互对称的第一、 第二后贴合面（323、 324), 第一前贴合面（313)与第二后贴合面
(324)相互平行， 第二前贴合面 （314) 与第一后贴合面（323)相互平行， 若干个前、 后挡块（31、 32)交替设置形成环状， 并且若干个前挡块（31 ) 的前抵靠端 （311 )抵靠 在承口（1 )的环形壁部（11 )上，若干个后挡块（32)的后抵靠端（321 )抵靠在插口（2) 的插口悍环（21 )上， 每个前挡块（31 )上的第一、 第二前贴合面（313、 314)分别与两 侧的后挡块（32)上的第二、 第一后贴合面 （324、 323)相互紧密贴合。
、 如权利要求 1所述的承插式管道接口， 其特征在于： 所述第一前贴合面（313)与第二后 贴合面（324)及第二前贴合面（314) 与第一后贴合面 （323)均为倾斜面， 并且所述各 倾斜面与铸管横截面的夹角 Θ均为 9° -60° 。
、 如权利要求 2所述的承插式管道接口，其特征在于：所述第一、第二前贴合面（313、 314) 上分别设有第一、 第二凸台 （315、 316)， 第一、 第二后贴合面 （323、 324)上分别设有 第一、 第二凸棱（325、 326)， 所述第一凸棱（325)卡固在第二凸台 （316)上， 第二凸 棱（326)卡固在第一凸台 （315)上。
、 如权利要求 3所述的承插式管道接口， 其特征在于： 所述前挡块（31 )的前抵靠端（311 ) 与外表面之间设有过渡圆弧 （318)， 前挡块（31 ) 的前抵靠端 （311 )与内表面之间设有 过渡斜面（319)， 所述过渡斜面 （319) 与铸管横截面的夹角 α为 20° -70° 。
、 如权利要求 4所述的承插式管道接口， 其特征在于： 所述后挡块（32)上设有自后贴合端
(322) 向内端面倾斜的第一、 第二过渡斜面（327、 328)。
、 如权利要求 5所述的承插式管道接口，其特征在于：所述第一、第二前贴合面（313、 314) 所在平面与前抵靠端（311 )所在平面的夹角 Ρ均为 20° -60° ， 所述第一、 第二后贴合 替换页 （细则第 26条) 面（323、 324)所在平面与后抵靠端 （321)所在平面的夹角为 ω均为 20。 -60 。
、 如权利要求 6所述的承插式管道接口， 其特征在于： 所述每个后挡块（32)与承口 （1) 的内壁之间分别设有一个挡块支撑圈 （33)， 所述挡块支撑圈 （33) 由弹性材料制成， 所 述后挡块（32) 的后抵靠端 （321)上设有固定孔 （320)， 所述挡块支撑圈 （33)前端面 设有固定凸块（331)，每个挡块支撑圈（33)的固定凸块（331)分别设于一个后挡块（32) 的固定孔（320) 内， 若干个挡块支撑圈 （33)形成封闭环， 所述封闭环的外径大于所述 承口 （1) 的内径。
、 如权利要求 7所述的承插式管道接口，其特征在于:所述封闭环的外径最大为所述承口（ 1 ) 的内径的 1.03倍。
、 如权利要求 8所述的承插式管道接口， 其特征在于： 所述固定凸块（331) 的上、 下表面 均为自后向前倾斜的倾斜面， 该倾斜面与铸管轴线的夹角 α '为 3度。
0、 如权利要求 9所述的承插式管道接口， 其特征在于： 所述每个挡块支撑圈（33)上沿 铸管周向的一端设有两个连接凹槽（332), 另一端设有两个连接凸块（333)， 一个挡块支 撑圈上的两个连接凸块分别设于相邻挡块支撑圈上的两个连接凹槽内。
1、 如权利要求 10所述的承插式管道接口， 其特征在于： 所述挡块支撑圈 （33) 的后端 面上间隔设有若干个突起（334)。
、 如权利要求 11所述的承插式管道接口， 其特征在于： 所述挡块支撑圈 （33) 的前端 面上设有凹槽（335)， 凹槽（335)沿挡块支撑圈 （33) 的长度方向延伸并且位于固定凸 块 (331) 的上方。
、 如权利要求 7所述的承插式管道接口， 其特征在于： 所述后挡块（32)与承口 （1) 的内壁之间设有一个环状挡块支撑圈，所述环状挡块支撑圈由弹性材料制成，所述后挡块
(32) 的后抵靠端 （321)上设有固定孔 （320)， 所述环状挡块支撑圈前端面间隔设有若 干个固定凸块， 每个固定凸块分别设于一个后挡块（32) 的固定孔（320) 内， 所述环状 挡块支撑圈的外径大于或等于所述承口 （1) 的内径。
、 如权利要求 13所述的承插式管道接口， 其特征在于： 所述环状挡块支撑圈的外径最 大为所述承口 （1) 的内径的 1.03倍。
替换页 （细则第 26条)
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CN102878369B (zh) 2014-09-17
EA201490593A1 (ru) 2014-06-30
EP2749803A1 (en) 2014-07-02
CN102878369A (zh) 2013-01-16
EP2749803A4 (en) 2015-04-01
EA024388B1 (ru) 2016-09-30
BR112014003294A2 (pt) 2017-04-18
SA113340874B1 (ar) 2015-11-10
BR112014003294B1 (pt) 2020-10-20
EP2749803B1 (en) 2016-03-23
EA024388B8 (ru) 2017-03-31

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