阅读说明：本技术 一种管道带压开孔分支装置 (Pipeline pressure tapping branching device ) 是由 汪书培 周青娜 王敬玉 丁增辉 于 2020-06-24 设计创作，主要内容包括：本发明公开了一种管道带压开孔分支装置,包括带压管体、下马鞍、上马鞍、管道密封垫、闸刀、螺母和截流密封圈,上马鞍的外侧设有长腰型的闸刀插入槽,的上马鞍的中心设有通孔,通孔内部从上到下依次设有内螺纹、环状的截流密封槽和与管道密封垫配合的管道密封槽,闸刀插入槽与截流密封槽连通,闸刀插入槽对应截流密封槽所在位置,上马鞍下部两侧设有安装凸台,下马鞍两顶部的螺栓端穿过安装凸台并与螺母构成锁紧结构。本发明中,管道密封垫可设置成U形结构,管道密封垫上部的外侧部分与管道密封槽配合,管道密封槽上部的内侧与通孔的内壁配合,相较于传统密封垫的密封效果更好,能够在较大的压力下也能起到防漏作用。(The invention discloses a pipeline pressure-tapping branching device which comprises a pressure-tapping pipe body, a lower saddle, an upper saddle, a pipeline sealing gasket, a knife switch, a nut and an interception sealing ring, wherein a long waist-shaped knife switch insertion groove is arranged on the outer side of the upper saddle, a through hole is formed in the center of the upper saddle, internal threads, an annular interception sealing groove and a pipeline sealing groove matched with the pipeline sealing gasket are sequentially arranged in the through hole from top to bottom, the knife switch insertion groove is communicated with the interception sealing groove, the knife switch insertion groove corresponds to the position of the interception sealing groove, mounting bosses are arranged on two sides of the lower part of the upper saddle, and bolt ends at the two tops of the lower saddle penetrate through the mounting bosses and form a locking structure with the nut. According to the pipeline sealing gasket, the pipeline sealing gasket can be arranged into a U-shaped structure, the outer side part of the upper part of the pipeline sealing gasket is matched with the pipeline sealing groove, and the inner side of the upper part of the pipeline sealing groove is matched with the inner wall of the through hole.)

1. The utility model provides a trompil branching unit is pressed in pipeline area, presses body (10), saddle (20) down, goes up saddle (30), pipeline sealing gasket (40), plug-in strip (50), nut (60) and closure seal circle (70) including area, its characterized in that: a long waist-shaped knife switch insertion groove (31) is formed in the outer side of the upper saddle (30), a through hole (32) is formed in the center of the upper saddle (30), internal threads (321), an annular closure sealing groove (322) and a pipeline sealing groove (323) matched with the pipeline sealing gasket (40) are sequentially formed in the through hole (32) from top to bottom, the knife switch insertion groove (31) is communicated with the closure sealing groove (322), and the knife switch insertion groove (31) corresponds to the position of the closure sealing groove (322);

mounting bosses (33) are arranged on two sides of the lower part of the upper saddle (30), bolt ends at two tops of the lower saddle (20) penetrate through the mounting bosses (33) and form a locking structure with nuts (60), and the under-pressure pipe body (10) penetrates through an annular structure formed by the lower saddle (20) and the upper saddle (30);

the bottom of the upper saddle (30) is matched with the arc outer wall of the pressurized pipe body (10), and the pipeline sealing gasket (40) is positioned between the upper saddle (30) and the pressurized pipe body (10) to form sealing fit;

the closure sealing ring (70) is positioned in the closure sealing groove (322), and the closure sealing ring (70) is in interference fit with the closure sealing groove (322);

the knife switch (50) penetrates through the knife switch insertion groove (31) and extends into the through hole (32), and is matched with the closure sealing ring (70) to form a sealing structure.

2. The pipe press-perforating branching device as claimed in claim 1, wherein: the closure sealing ring (70) comprises a guide surface (71) positioned on the upper part of the outer side, a sealing lip (72) positioned at the top end and a yielding groove (73) positioned on the inner side, wherein the sealing lip (72) is in sealing fit with the knife switch (50).

3. The pipe press-perforating branching device as claimed in claim 2, wherein: the inboard of sealing washer (70) of damming is equipped with inside lining skeleton (74), and the top of inside lining skeleton (74) is less than the bottom of dodging groove (73).

4. The pipe branching device as claimed in any one of claims 1 to 3, wherein: go up saddle (30) and be equipped with outer seal groove (34) of annular structure on the outer wall of corresponding plug-in strip insertion groove (31), be equipped with on outer seal groove (34) and have clamp (341) and be located clamp (341) inboard seal washer (342).

5. The pipe press-perforating branching device as claimed in claim 4, wherein: the cross section of the sealing washer (342) corresponding to the position of the knife blade insertion groove (31) is of a T-shaped structure, and the protruding part extends into the knife blade insertion groove (31).

6. The pipe press-perforating branching device as claimed in claim 4, wherein: the cross section of the pipeline sealing gasket (40) is of a U-shaped structure, and the pipeline sealing gasket (40) is connected with the pipeline sealing groove (323) in a clamped mode.

Technical Field

The invention relates to the technical field of pressure tapping, in particular to a pipeline pressure tapping branch device.

Background

The 201820344996.1 patent discloses a method for tapping a pipeline, and the gate valve plays a role in controlling the on and off of the fluid in the pipeline and a branch pipeline during the tapping process of the pipeline under pressure, and is the key of tapping under pressure. Because the gate valve has certain length, and the tapping machine need pass the gate valve just can carry out the trompil to the pipeline. But the prior art wastes more materials, and the tapping stroke is longer, so that the operation of the main shaft of the tapping machine is not facilitated

Us patent 3420261, also proposes an open-pore flow divider.

However, the technical scheme has the disadvantages of more structural components of the closure sealing system and inconvenient installation and use.

The patent cn201320073611.x also proposes a pipe tapping device with a gate valve, but only a combination of a pipe tapping device and a gate valve.

Disclosure of Invention

The invention aims to provide a pipeline belt-pressing hole-opening branching device to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a pipeline press-perforating branching device comprises a pipe body with pressure, a lower saddle, an upper saddle, a pipeline sealing gasket, a knife switch, a nut and an interception sealing ring, wherein a long waist-shaped knife switch insertion groove is formed in the outer side of the upper saddle, a through hole is formed in the center of the upper saddle, an internal thread, an annular interception sealing groove and a pipeline sealing groove matched with the pipeline sealing gasket are sequentially formed in the through hole from top to bottom, the knife switch insertion groove is communicated with the interception sealing groove, and the knife switch insertion groove corresponds to the position of the interception sealing groove;

mounting bosses are arranged on two sides of the lower part of the upper saddle, bolt ends at the two tops of the lower saddle penetrate through the mounting bosses and form a locking structure with nuts, and the pipe body with pressure penetrates through an annular structure formed by the lower saddle and the upper saddle;

the bottom of the upper saddle is matched with the arc outer wall of the pressurized pipe body, and the pipeline sealing gasket is positioned between the upper saddle and the pressurized pipe body to form sealing fit;

the closure sealing ring is positioned in the closure sealing groove and is in interference fit with the closure sealing groove;

the knife switch penetrates through the knife switch insertion groove and extends into the through hole, and the knife switch is matched with the closure sealing ring to form a sealing structure.

Furthermore, the sealing washer dams includes the guide surface that is located outside upper portion, is located the sealing lip on top and is located the inboard groove of letting out, sealing lip and plug-in strip seal cooperation.

Further, the inboard of sealing washer that dams is equipped with the inside lining skeleton, and the top of inside lining skeleton is less than and moves back the bottom of groove.

Furthermore, go up the saddle and be equipped with the outer seal groove of annular structure on the outer wall that corresponds the plug-in strip insertion groove, be equipped with on the outer seal groove and have the clamp and be located the inboard seal washer of clamp.

Furthermore, the cross section of the sealing washer corresponding to the position of the knife blade insertion groove is of a T-shaped structure, and the protruding part extends into the knife blade insertion groove.

Further, the cross section of the pipeline sealing gasket is of a U-shaped structure, and the pipeline sealing gasket is clamped with the pipeline sealing groove.

Compared with the prior art, the invention has the beneficial effects that:

according to the pipeline sealing gasket, the pipeline sealing gasket can be arranged into a U-shaped structure, the outer side part of the upper part of the pipeline sealing gasket is matched with the pipeline sealing groove, and the inner side of the upper part of the pipeline sealing groove is matched with the inner wall of the through hole.

The knife switch can extend into the through hole through the knife switch insertion groove, and firstly contacts with the guide surface on the closure sealing ring during insertion, after further pressure is applied, the knife switch can press the sealing lip on the closure sealing ring until the sealing lip is in sealing fit with the knife switch, and as the receding groove is arranged below the sealing lip and positioned on the inner side of the closure sealing ring, the sealing lip deforms downwards after being pressed, on one hand, the insertion resistance of the knife switch can be reduced; on the other hand can prevent that the sealing washer that dams from receiving great effort and shifting out the seal groove that dams, and then can avoid the plug-in strip to stretch into the problem of revealing in the through-hole time.

When the knife switch is pulled out, the sealing lip can rebound rapidly to seal the closure sealing groove and the knife switch insertion groove, and fluid in the pressure pipe is prevented from leaking.

For improving the anti deformability of the closure sealing ring, the closure sealing ring is prevented from being moved out of the closure sealing groove due to larger acting force, a lining framework can be arranged on the inner side of the closure sealing ring, the top end of the lining framework is lower than the bottom of the receding groove, and the closure sealing ring is supported by the lining framework and is made to be tightly attached to the inner wall of the closure sealing groove.

For safety measures, a clamp and a sealing washer can be arranged on an outer sealing groove at the position of the upper saddle and corresponding to the outer wall of the knife inserting groove, so that leakage is further prevented.

Drawings

FIG. 1 is an exploded view of a piping tapping device;

FIG. 2 is an assembly view of a piping tapping device;

FIG. 3 is a top view of a piping tapping device;

FIG. 4 is a full sectional view taken at A-A of FIG. 3;

FIG. 5 is a schematic view of an assembly structure of an upper saddle and a shutoff sealing ring in a branching device with a pressure hole in a pipeline;

fig. 6 is a schematic structural diagram of a shutoff sealing ring in a branching device with a pressing hole of a pipeline.

In the figure: 10. a pipe body with pressure; 20. a lower saddle; 30. an upper saddle; 31. inserting a knife into the slot; 32. a through hole; 321. an internal thread; 322. a closure seal groove; 323. a pipe seal groove; 33. mounting a boss; 34. an outer seal groove; 341. clamping a hoop; 342. a sealing gasket; 40. a pipe gasket; 50. a knife switch; 60. a nut; 70. a closure seal ring; 71. a guide surface; 72. a sealing lip; 73. a receding groove; 74. and (5) lining the framework.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution:

a pipeline press-perforating branching device comprises a pipe body 10 with pressure, a lower saddle 20, an upper saddle 30, a pipeline sealing gasket 40, a knife switch 50, a nut 60 and an interception sealing ring 70, wherein the outer side of the upper saddle 30 is provided with a long waist-shaped knife switch insertion groove 31, the center of the upper saddle 30 is provided with a through hole 32, the inside of the through hole 32 is sequentially provided with an internal thread 321, an annular interception sealing groove 322 and a pipeline sealing groove 323 matched with the pipeline sealing gasket 40 from top to bottom, the knife switch insertion groove 31 is communicated with the interception sealing groove 322, and the knife switch insertion groove 31 corresponds to the position of the interception sealing groove 322;

mounting bosses 33 are arranged on two sides of the lower part of the upper saddle 30, bolt ends at two tops of the lower saddle 20 penetrate through the mounting bosses 33 and form a locking structure with nuts 60, and the pipe body 10 with pressure penetrates through an annular structure formed by the lower saddle 20 and the upper saddle 30;

the bottom of the upper saddle 30 is matched with the arc outer wall of the pressurized pipe body 10, and the pipeline sealing gasket 40 is positioned between the upper saddle 30 and the pressurized pipe body 10 to form sealing fit;

the closure sealing ring 70 is positioned in the closure sealing groove 322, and the closure sealing ring 70 is in interference fit with the closure sealing groove 322;

the blade 50 penetrates through the blade insertion groove 31 and extends into the through hole 32, and cooperates with the cut-off sealing ring 70 to form a sealing structure.

The two sides of the bottom of the upper saddle 30 are provided with mounting bosses 33, the centers of the mounting bosses 33 are provided with through holes, the lower saddle 20 can be in a U-shaped structure, bolt ends positioned at the two top ends of the lower saddle 20 penetrate through the through holes and are fixedly connected with the nuts 60 in a threaded manner, the upper saddle 30 is tightly connected with the pressurized pipe body 10, and a pipeline sealing gasket 40 is matched to form a sealing connection structure.

Wherein, the pipeline sealing gasket 40 can be set to a U-shaped structure, the outer part (the outside that is located the top surface depressed part) on the pipeline sealing gasket 40 upper portion cooperates with pipeline seal groove 323, and the inboard on pipeline seal groove 323 upper portion cooperates with the inner wall of through-hole 32, and it is better to compare in the sealed effect of traditional sealed pad, can also play the leak protection effect under great pressure.

The lower part of the upper saddle 30 is an arc surface and is matched with the size of the excircle of the pressurized pipe body 10, the pipeline sealing groove 323 is positioned at the joint of the through hole 32 and the bottom surface of the upper saddle 30, the opening is downward, and the pipeline sealing groove 323 is in sealing fit with the pipeline sealing gasket 40.

The shutoff sealing groove 322 is installed with the shutoff sealing ring 70 therein, and the height of the shutoff sealing ring 70 is slightly higher than that of the shutoff sealing groove 322, so that the shutoff sealing ring 70 functions to prevent fluid in the pressurized pipe body 10 from leaking outward through the blade insertion groove 31.

The knife switch 50 can extend into the through hole 32 through the knife switch insertion groove 31 and firstly contacts the guide surface 71 on the closure sealing ring 70 during insertion, after further pressure is applied, the knife switch 50 can press the sealing lip 72 on the closure sealing ring 70 until the sealing lip 72 is in sealing fit with the knife switch 50, and as the receding groove 73 is arranged below the sealing lip 72 and on the inner side of the closure sealing ring 70, when the sealing lip 72 is pressed, the downward deformation is carried out, on one hand, the insertion resistance of the knife switch 50 can be reduced; on the other hand, the shutoff sealing ring 70 can be prevented from being moved out of the shutoff sealing groove 322 by a large acting force, and the problem of leakage when the knife switch 50 extends into the through hole 32 can be avoided.

When the blade 50 is withdrawn, the sealing lip 72 can rapidly rebound to seal the shut-off sealing groove 322 and the blade insertion groove 31, thereby preventing fluid leakage from the pressurized pipe 10.

In order to improve the deformation resistance of the closure sealing ring 70 and prevent the closure sealing ring 70 from moving out of the closure sealing groove 322 under a large acting force, a lining framework 74 may be disposed on the inner side of the closure sealing ring 70, and the top end of the lining framework 74 is lower than the bottom of the receding groove 73, so that the closure sealing ring 70 is supported by the lining framework 74 and clings to the inner wall of the closure sealing groove 322.

For safety measures, an outer sealing groove 34 of a ring structure may be further provided on an outer wall of the upper saddle 30 corresponding to the blade insertion groove 31, the outer sealing groove 34 is provided with a band 341 and a sealing washer 342 located inside the band 341, the cross section of the sealing washer 342 corresponding to the blade insertion groove 31 is of a T-shaped structure, and a protruding portion protrudes into the blade insertion groove 31, thereby further preventing leakage.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.