CN109798414A

CN109798414A - Gas transmission line mouth plugging apparatus

Info

Publication number: CN109798414A
Application number: CN201910262693.4A
Authority: CN
Inventors: 吕迎玺; 王振海; 卢嘉栋; 杨冰; 任玉明; 张鉴超; 王宏达; 崔新生; 张慧; 杨立勤; 王雅萱; 崔浩东
Original assignee: Shanxi Mechanical Product Quality Supervision And Inspection Station
Current assignee: Shanxi Mechanical Product Quality Supervision And Inspection Station
Priority date: 2019-04-02
Filing date: 2019-04-02
Publication date: 2019-05-24

Abstract

Gas transmission line mouth plugging apparatus provided by the invention belongs to gas pipeline blocking technology field.It mainly solves the problems, such as that the closure of prior art pipeline is taken a lot of work and expects and be easy leakage gas, including closure plate, pressing ring, sealing ring, stopping device and detection valve, its main feature is that: the diameter of the closure plate and the internal diameter of appendix are smaller, it is provided with annular boss on the closure plate, threaded hole is provided on boss；Locating ring is provided on the annular boss；The sealing snare is on the annular boss；The outside diameter of the pressing ring and the outside diameter of closure plate are consistent, the interior circular diameter of the pressing ring is matched with the outer diameter of the locating ring, the pressing ring covers on the locating ring, pressing ring is bolted on closure plate, the bolt is matched with screw hole, when bolt screws, the sealing ring compressive deformation, and it is filled in the closure plate and pressing ring and gas transmission inside pipe wall gap location；Detection valve is provided on the closure plate.Safe ready uses manpower and material resources sparingly.

Description

Gas transmission line mouth plugging apparatus

Technical field

The invention belongs to gas pipeline blocking technology fields, and in particular to gas transmission line mouth plugging apparatus.

Background technique

Currently, the method that gas transmission line nozzle uses when needing to block is usually rubber pneumatic bag inflation blocking pipeline, then It is built a wall closure with brick, cement.Such mode block there are the problem of: take a lot of work when being built a wall using brick, cement, take material, construction site It is big to excavate Space-Work amount；Rear gasbag of building a wall is not easy to take out；Occluding body is easy leakage gas after closure.In addition, block when without Method detects gas, air pressure real time status in pipeline, and there are hidden dangers.

Summary of the invention

The purpose of the present invention overcomes the deficiencies of the prior art and provide gas transmission line mouth plugging apparatus.

The present invention adopts the technical scheme that solve above-mentioned technical problem:

Gas transmission line mouth plugging apparatus, including closure plate, pressing ring, sealing ring, stopping device and detection valve, its main feature is that: The diameter of the closure plate and the internal diameter of appendix are smaller, are provided with annular boss on the closure plate, spiral shell is provided on boss Pit；Locating ring is provided on the annular boss；Handgrip 5 is provided on the closure plate 6；The sealing snare is in the ring On shape boss；The outside diameter of the pressing ring and the outside diameter of closure plate are consistent, the interior circular diameter of the pressing ring and the positioning The outer diameter of circle matches, and the pressing ring covers on the locating ring, and pressing ring is bolted on closure plate, the bolt and screw hole Matching, when bolt screws, the real compressive deformation of the sealing, and it is filled in the closure plate and pressing ring and gas transmission inside pipe wall gap Place；Detection valve is provided on the closure plate.

The shape in the cross section of the sealing ring is U-shaped, and U-shaped opening is inwardly.

The stopping device includes retreat stop block, screw and retaining block, and the retaining block is fixed on pressing ring, described to stop It moving back block and the retaining block is hinged, the threaded hole on the screw and the retreat stop block cooperates, when tightening screw, screw End is withstood on pressing ring, and retreat stop block is made to rotate an angle around the articulated shaft that is arranged on retaining block, at this time retreat stop block with it is defeated The tube wall of tracheae contacts, and with screwing for screw, the contact friction force of retreat stop block and gas transmission tube wall increases.

Gas transmission line nozzle method for blocking, its main feature is that: it comprises the following specific steps that:

The first step, production diameter are slightly less than the closure plate and pressing ring for needing the spout diameter blocked；

Second step will seal snare on the boss on closure plate；

Closure plate is put into nozzle by third step perpendicular to pipeline axis；

4th step, pressing ring is placed on locating ring, and blending bolt is screwed into screw hole；Closure plate and pressing ring by plastic seal ring to Outer extruding enables sealed ring deformation squeeze out and is tightly attached in inner wall of the pipe, to play the role of sealing blocking.

Gas transmission line nozzle detects air pressure in pipeline method after blocking, its main feature is that: the aperture on the closure plate, in institute Installation detection valve in aperture, connecting corresponding gas detection equipment can be detected pipeline internal gas situation.

Compared with the prior art, the present invention has the following beneficial effects:

Since the present invention uses closure plate, plastic seal ring and pressing ring, sealing is tightly attached in pipeline by tightening bolt On wall, to play the role of sealing blocking, construction safety is convenient, uses manpower and material resources sparingly, and improves operating efficiency.Using detection valve Air pressure real time status can be monitored, in favor of operation.

Detailed description of the invention

Fig. 1 is the structural diagram of the present invention；

Fig. 2 is B-B cross-sectional view in Fig. 1；

Fig. 3 is blind structure schematic diagram of the invention；

Fig. 4 is stopping device structural schematic diagram of the invention；

Fig. 5 is arrangement works status diagram shown in Fig. 4；

Fig. 6 is ring structure schematic diagram of the invention

Fig. 7 is the C-C cross-sectional view of structure shown in Fig. 6.

In figure: 1-appendix；2-bolts；3-stopping devices；3-1-retreat stop block；3-2-screw；3-3 retaining block； 4-pressing rings；5-handgrips；6-closure plates；6-1-boss；6-2-locating ring；6-3-screw hole；7-sealing rings；7-1-is cross-section Face；7-2-ring inner hole；8-detection valves.

Specific embodiment

As depicted in figs. 1 and 2, gas transmission line mouth plugging apparatus, including closure plate 6, pressing ring 4, sealing ring 7, stopping device 3 And detection valve 8, its main feature is that: as shown in figure 3, the diameter of the closure plate 6 and the internal diameter of appendix 1 are smaller, on the closure plate 6 It is provided with annular boss 6-1, is provided with threaded hole on boss 6-1；Locating ring 6-2 is provided on the annular boss 6-1； Handgrip 5 is provided on the closure plate 6；7 sets of the sealing ring on the annular boss 6-1；The outside diameter of the pressing ring 4 with The outside diameter of closure plate 6 is consistent, and the interior circular diameter of the pressing ring 4 is matched with the outer diameter of the locating ring 6-2,4 sets of the pressing ring On the locating ring 6-2, pressing ring 4 is fixed on closure plate 6 by bolt 2, and the bolt 2 is matched with screw hole 6-3, when bolt 2 When screwing, real 7 compressive deformations of the sealing, and it is filled in the closure plate 6 and pressing ring 4 and 1 inner wall gap location of appendix；Such as Fig. 1 Valve 8 is detected with being provided with shown in Fig. 2 on the closure plate 6.

As shown in Fig. 6 figure and Fig. 7, the shape of the cross section 7-1 of the sealing ring 7 is U-shaped, and U-shaped opening is inwardly.

As shown in Figure 4 and Figure 5, the stopping device 3 includes retreat stop block 3-1, screw 3-2 and retaining block 3-3, it is described only It moves back block 3-3 to be fixed on pressing ring 4, the retreat stop block 3-1 and the retaining block 3-3 are hinged, and the screw 3-2 stops with described Move back on block 3-1 threaded hole cooperation, as tightening screw 3-2, the end of screw 3-2 is withstood on pressing ring 4, make retreat stop block 3-1 around The articulated shaft being arranged on retaining block 3-3 rotates an angle, and retreat stop block 3-1 is contacted with the tube wall of appendix 1 at this time, with Screw 3-2's screws, and the contact friction force of retreat stop block 3-1 and gas transmission tube wall increases.

The first step, production diameter are slightly less than the closure plate 6 and pressing ring 4 for needing the spout diameter blocked；

Second step, by 7 sets of sealing ring on the boss 6-1 on closure plate 6；

Closure plate 6 is put into nozzle by third step perpendicular to pipeline axis；

Pressing ring 4 is placed on locating ring 6-2 by the 4th step, and blending bolt 2 is screwed into screw hole 6-3；Closure plate 6 and pressing ring 4 will be moulded Property sealing ring 7 outwardly against enable sealed ring deformation squeeze out and be tightly attached in inner wall of the pipe, to play the role of sealing blocking.

Gas transmission line nozzle detects air pressure in pipeline method after blocking, it is characterized in that: the aperture on the closure plate 6, Installation detection valve 5 in institute's aperture, connecting corresponding gas detection equipment can be detected pipeline internal gas situation.

The course of work:

In the use of the present invention, when being blocked in carrying out appendix spool, by 7 sets of the sealing ring boss 6-1 on closure plate 6 On, closure plate 6 is placed in 1 mouthful of appendix, pressing ring 4 is placed on locating ring 6-2, bolt 2 is screwed into screw hole 6-3,6 He of closure plate Pressing ring 4 outwardly against enabling sealed ring deformation squeeze out and be tightly attached in inner wall of the pipe, seals plastic seal ring 7 to play sealing Stifled effect.It needs to detect gas-condition in pipeline, then will test and connect corresponding detection device on valve 8 and can be detected gas inside pipeline Body situation.

Claims

1. The gas pipeline nozzle blocking device, comprising a blocking plate (6), a pressure ring (4), a sealing ring (7), a backstop device (3) and a detection valve (8), characterized in that: the blocking The diameter of the plate (6) is slightly smaller than the inner diameter of the gas transmission pipe (1), an annular boss (6-1) is arranged on the blocking plate (6), and a thread is arranged on the boss (6-1). A positioning ring (6-2) is arranged on the annular boss (6-1); a gripper (5) is arranged on the blocking plate 6; the sealing ring (7) is sleeved on the on the annular boss (6-1); the outer diameter of the pressure ring (4) is the same as the outer diameter of the blocking plate (6), and the inner diameter of the pressure ring (4) is the same as that of the positioning ring The outer diameter of (6-2) is matched, the pressure ring (4) is sleeved on the positioning ring (6-2), and the pressure ring (4) is fixed on the blocking plate (6) by the bolt (2), so the The bolts (2) are matched with the screw holes (6-3), and when the bolts (2) are tightened, the sealing ring (7) is deformed under pressure, and is filled in the blocking plate (6) and the pressure ring (4). ) and the gap between the inner wall of the gas delivery pipe (1); a detection valve (5) is provided on the blocking plate (6); the backstop device (3) is fixed on the pressure ring (4) near the edge position;

The shape of the cross section (7-1) of the sealing ring (7) is U-shaped, and the U-shaped opening faces inward.

2 . The device for plugging the mouth of a gas pipeline according to claim 1 , wherein the backstop device (3) comprises a backstop block (3-1), a screw (3-2) and a backstop block. 3 . seat (3-3), the backstop block seat (3-3) is fixed on the pressure ring (4), the backstop block (3-1) and the backstop block seat (3-3) Hinged, the screw (3-2) is matched with the threaded hole on the stop block (3-1), when the screw (3-2) is tightened, the end of the screw (3-2) is on the pressure ring (4), make the backstop block (3-1) rotate an angle around the hinge shaft arranged on the backstop block seat (3-3), at this time the backstop block (3-1) is connected to the gas pipe (1) The contact friction between the back-stop block (3-1) and the wall of the gas transmission pipe increases as the screw (3-2) is tightened.

3. The method for plugging the mouth of a gas pipeline, which is characterized in that it comprises the following specific steps:

The first step is to make a blocking plate (6) with a diameter slightly smaller than the inner diameter of the nozzle to be blocked, and a pressure ring (4);

The second step is to put the sealing ring (7) on the boss (6-1) on the blocking plate (6);

The third step is to put the blocking plate (6) into the nozzle perpendicular to the axis of the pipeline;

The fourth step is to put the pressure ring (4) on the positioning ring (6-2), and screw the bolts (2) into the screw holes (6-3); the blocking plate (6) and the pressure ring (4) The sealing ring (7) is extruded outward to deform and extrude the sealing ring and tightly adhere to the inner wall of the pipeline, thereby playing a sealing and blocking effect.

4. The method for detecting the air pressure in the pipeline after the nozzle of the gas transmission line is blocked, characterized in that: opening a hole on the blocking plate (6), installing a detection valve (5) on the opening, and connecting the corresponding gas detection equipment The gas condition inside the pipeline can be detected.