CN217234867U - Self-conductance pipeline plugging assembly - Google Patents

Abstract

The utility model relates to a self-diversion pipeline plugging component, which comprises a support rod and an expansion ring, the supporting rod comprises a left sealing cover and a right sealing cover, supporting lugs and a blind plate are correspondingly sealed at two ends of the supporting rod, a fixing ring and a sliding ring are arranged on the supporting rod, a guide pipe is arranged in the supporting rod, the left end of the guide pipe is connected with a first pipe connector, the right end of the guide pipe penetrates through the blind plate, an expansion ring is formed by combining a first arc-shaped part and a second arc-shaped part which are alternately distributed, guide surfaces are arranged at two ends of the first arc-shaped part, a sliding groove is formed in each guide surface, guide holes are formed in the side wall of the sliding groove, each guide hole in the adjacent first arc-shaped part is splayed, the second arc-shaped part is hinged to the fixing ring and the sliding ring through a connecting rod, a sliding block matched with the sliding groove is arranged on two sides of the sliding block, two ends of the left sealing cover are correspondingly connected with the sliding ring and the expansion ring, and two ends of the right sealing cover are correspondingly connected with the fixing ring and the expansion ring. The plugging device has the advantages of compact structure, reliable plugging and strong adaptability.

Description

Self-conductance pipeline plugging assembly

Technical Field

The utility model relates to a pipeline shutoff technique, concretely relates to from diversion pipeline shutoff subassembly for trompil shutoff.

Background

In the process of connecting, cutting and changing the pipeline of a gas pipe network, the operation of opening holes and plugging is frequently required. The plugging machine that present field adopted mainly carries out gas pipeline shutoff through the expansion cylinder, and it has the following problem: the equal-diameter hole needs to be formed, otherwise, the plugging cannot be carried out, and the difficulty and the workload for forming the equal-diameter hole are relatively large; the matching degree of the expansion cylinder to the equal-diameter hole is high, and the situation of untight plugging often occurs. In order to solve the problems of the expansion cylinder, those skilled in the art have developed an expansion ring type pipe sealer, such as the patent application with publication number CN212929169U, which can solve the problems of the expansion cylinder, but has the following disadvantages: 1. the plugging failure phenomenon is easy to occur due to the limitation of the structure of the plugging device; 2. the pressure can not be taken and released, and the safety is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a from diversion pipeline shutoff subassembly, it has compact structure, the shutoff is reliable, strong adaptability's advantage.

In order to solve the above problems in the prior art, the present invention provides a self-flow-guiding pipeline plugging assembly, which comprises a support rod, an expansion ring, a left sealing cover and a right sealing cover, wherein the support rod is of a tubular structure, the left end and the right end of the support rod are respectively and hermetically fixed with a support lug and a blind plate, the support rod on the left side of the blind plate is provided with a fixing ring, the support rod on the left side of the fixing ring is sleeved with a sliding ring, a sliding sealing structure is arranged between the sliding ring and the support rod, the support rod is internally provided with a flow guiding pipe, the left end of the flow guiding pipe is connected with a first pipe joint on the support rod, the right end of the flow guiding pipe passes through the blind plate and enables the blind plate to be hermetically matched with the blind plate, the expansion ring is composed of a first arc-shaped part and a second arc-shaped part which are alternately distributed, the two ends of the first arc-shaped part are provided with guiding surfaces which are inclined inwards and symmetrically distributed, the guiding surfaces are provided with sliding grooves, the two side walls of the sliding grooves are provided with guiding holes, the adjacent first arc-shaped parts are in a splayed shape, the middle part of the second arc-shaped part is hinged with the fixed ring and the sliding ring through symmetrically distributed connecting rods, sliding blocks matched with the sliding grooves are arranged at two ends of the second arc-shaped part, guide posts in guide holes are arranged on two sides of the sliding blocks, the left end of the left sealing cover is fixedly connected with the sliding ring in a sealing mode, the right end of the left sealing cover is sleeved on the expansion ring and is fixedly connected with the first arc-shaped part, the right end of the right sealing cover is fixedly connected with the fixed ring in a sealing mode, and the left end of the right sealing cover is sleeved on the expansion ring and is fixedly connected with the first arc-shaped part.

Further, the utility model relates to a from draft tube shutoff subassembly, wherein, first arc includes first left extrusion portion and first right extrusion portion of symmetric distribution, and first left extrusion portion and first right extrusion portion are even as an organic whole through first connecting portion, second arc includes left extrusion portion of second and the right extrusion portion of second of symmetric distribution, and left extrusion portion of second and the right extrusion portion of second are even as an organic whole through the second connecting portion, form the air vent between adjacent first connecting portion and the second connecting portion, bracing piece between left side sealed cowling and the right sealed cowling is equipped with the air channel rather than the inner chamber intercommunication, and the left end of bracing piece is equipped with the second coupling rather than the inner chamber intercommunication.

Further, the utility model relates to a from diversion pipeline shutoff subassembly, wherein, be equipped with the seal groove on the inner wall of sliding ring, be equipped with the sealing ring in the seal groove, the bracing piece is equipped with the ring platform on the right side of sliding ring, and the left side of ring platform is inlayed and is equipped with sealed the pad.

Further, the utility model relates to a from diversion pipeline shutoff subassembly, wherein, the left side of sliding ring is passed through the fix with screw and is had the pressure disk, the left end extrusion of left side sealed cowling is between sliding ring and pressure disk, the blind plate passes through the fix with screw on solid fixed ring, the right-hand member extrusion of right side sealed cowling is between blind plate and solid fixed ring.

Further, the utility model relates to a from diversion pipeline shutoff subassembly, wherein, left side sealed cowling is equipped with left telescopic joint, is equipped with interval distribution's left annular on the outer wall that left side sealed cowling and expansion ring correspond the position, right side sealed cowling is equipped with right telescopic joint, is equipped with interval distribution's right annular on the outer wall that right side sealed cowling and expansion ring correspond the position.

Further, the utility model relates to a from diversion pipeline shutoff subassembly, wherein, the otic placode of symmetric distribution around being fixed with through the screw on the pressure disk.

Further, the utility model relates to a from diversion pipeline shutoff subassembly, wherein, the guide post of slider both sides interval is equipped with two respectively, and the cover is equipped with the axle sleeve on the guide post.

Further, the utility model relates to a from diversion pipeline shutoff subassembly, wherein, the journal stirrup passes through flange and the sealed fixed connection of bracing piece.

Further, the utility model relates to a from diversion pipeline shutoff subassembly, wherein, left side sealed cowling and right sealed cowling adopt the rubber materials preparation.

Further, the utility model relates to a from diversion pipeline shutoff subassembly, wherein, first arc and second arc are equipped with four respectively.

The utility model relates to a from diversion pipeline shutoff subassembly compares with prior art, has following advantage: the utility model discloses a through setting up bracing piece, expansion ring, left sealed cowling and right sealed cowling, let the bracing piece adopt the tubular structure and correspond sealed fixed journal stirrup and blind plate in its left and right sides end, set up solid fixed ring on the left bracing piece of blind plate, overlap on the left bracing piece of solid fixed ring and establish the sliding ring, set up the sliding seal structure between sliding ring and bracing piece, and set up the honeycomb duct in the bracing piece, let the left end of honeycomb duct be connected with the first coupling on the bracing piece, let the right-hand member of honeycomb duct pass the blind plate and make both seal fit; the expansion ring is in a structure formed by combining a first arc-shaped part and a second arc-shaped part which are alternately distributed, wherein two ends of the first arc-shaped part are provided with guide surfaces which are inwards inclined and symmetrically distributed, a sliding groove is arranged on each guide surface, guide holes are arranged on two side walls of each sliding groove, the guide holes on the adjacent first arc-shaped parts are in a splayed shape, the middle part of the second arc-shaped part is respectively hinged with a fixed ring and a sliding ring through connecting rods which are symmetrically distributed, two ends of the second arc-shaped part are provided with sliding blocks matched with the sliding grooves, and two sides of each sliding block are provided with guide columns positioned in the guide holes; let the left end and the sliding ring seal fixed connection of left sealed cowling, with the right-hand member cover of left sealed cowling on the expansion ring and with first arc fixed connection, let the right-hand member and the solid fixed ring seal fixed connection of right sealed cowling, with the left end cover of right sealed cowling on the expansion ring and with first arc fixed connection. Therefore, the self-diversion pipeline plugging assembly with compact structure, reliable plugging and strong adaptability is formed. In practical application, firstly, the sliding ring slides towards the left side so as to enable the expansion ring, the left sealing cover and the right sealing cover to be in a contraction state, then the plugging assembly is placed into the gas pipeline from the opening, the sliding ring slides towards the right side, and the left sealing cover and the right sealing cover can be tightly extruded on the inner wall of the gas pipeline after the expansion ring is unfolded in place, so that the plugging purpose is achieved. The utility model realizes self-diversion by arranging the diversion pipe in the support rod, and enables the first pipe joint connecting hose and the related detection instrument to take pressure from the gas pipeline during plugging, thereby improving the accuracy of detection and control, and on the other hand, the gas can be diffused when needed, thereby improving the safety; through setting up the two pass seal structure that comprises sliding ring, left sealed cowling, expansion ring, right sealed cowling and solid fixed ring, improved the reliability and the security of shutoff.

The following describes a self-conductance pipeline plugging assembly in detail with reference to the specific embodiments shown in the drawings.

Drawings

Fig. 1 is a front view of a self-conductance pipeline plugging assembly of the present invention;

FIG. 2 is a view taken along line A-A of FIG. 1;

fig. 3 is a top view of a self-conductance pipeline plugging assembly of the present invention;

FIG. 4 is a view taken along line B-B of FIG. 3;

fig. 5 is a first perspective view of a self-conductance pipeline plugging assembly of the present invention;

fig. 6 is a second isometric view of a self-draining pipeline plugging assembly of the present invention;

FIG. 7 is a front view of the expansion ring of the present invention in an expanded state;

FIG. 8 is a left side view of the expansion ring of the present invention in an expanded state;

fig. 9 is a first isometric view of the expansion ring of the present invention in its expanded state;

fig. 10 is a second isometric view of the expansion ring of the present invention in its expanded state;

FIG. 11 is a front view of the expansion ring of the present invention in a contracted state;

FIG. 12 is a left side view of the expansion ring of the present invention in a contracted state;

FIG. 13 is a first perspective view of the expansion ring of the present invention in a contracted state;

figure 14 is an isometric view of the expansion ring of the present invention in a contracted condition;

fig. 15 is a right side view of a first arcuate member of the present invention;

figure 16 is an isometric view of a first arcuate member of the present invention;

fig. 17 is a second perspective view of a first arcuate member of the present invention;

fig. 18 is a right side view of a second arcuate member of the present invention;

fig. 19 is a first isometric view of a second arcuate member of the present invention;

fig. 20 is an isometric view of a second arcuate member of the present invention;

wherein the left and right seal cups are hidden from view in fig. 7-14 to show the expansion rings and their connection.

Detailed Description

It should be noted that, in the present invention, the terms of upper, lower, left, right, front, rear and the like are only described according to the accompanying drawings, so as to facilitate understanding, and are not intended to limit the technical solution and the scope of the present invention.

Fig. 1 to fig. 20 show a specific embodiment of a self-conductance pipeline plugging assembly of the present invention, which includes a support rod 1, an expansion ring 2, a left sealing cover 3 and a right sealing cover 4. Let bracing piece 1 adopt tubular structure and correspond sealed fixed journal stirrup 5 and blind plate 6 at its left and right ends, set up solid fixed ring 11 on the bracing piece 1 on the left of blind plate 6, the sliding ring 7 is established to the cover on solid fixed ring 11 left bracing piece 1, set up sliding seal structure between sliding ring 7 and bracing piece 1, and set up honeycomb duct 8 in bracing piece 1, let honeycomb duct 8's left end and bracing piece 1 on first coupling 12 be connected, let honeycomb duct 8's right-hand member pass blind plate 6 and make both seal-tightly cooperations. Let expansion ring 2 adopt the structure that comprises first arc 21 and the combination of second arc 22 of alternate distribution, set up the guide surface that the leanin just is the symmetric distribution at the both ends of first arc 21, be equipped with spout 211 on the guide surface, set up guiding hole 212 on the both sides wall of spout 211, and make guiding hole 212 on the adjacent first arc 21 form the splayed, make the middle part of second arc 22 articulated with solid fixed ring 11 and sliding ring 7 respectively through the connecting rod 9 of symmetric distribution, set up slider 221 with spout 211 complex at the both ends of second arc 22, set up guide post 222 in guiding hole 212 at the both sides of slider 221. The left end of the left sealing cover 3 is fixedly connected with the sliding ring 7 in a sealing way, and the right end of the left sealing cover 3 is sleeved on the expansion ring 2 and is fixedly connected with the first arc-shaped part 21; let the right-hand member of right sealed cowling 4 and fixed ring 11 sealed fixed connection, overlap the left end of right sealed cowling 4 on expansion ring 2 and with first arc 21 fixed connection.

The self-diversion pipeline plugging assembly with compact structure, reliable plugging and strong adaptability is formed through the structure arrangement. In practical application, firstly, the sliding ring 7 slides to the left side to enable the expansion ring 2, the left sealing cover 3 and the right sealing cover 4 to be in a contraction state, then the plugging assembly is placed into a gas pipeline from the opening, the sliding ring 7 slides to the right side, and the left sealing cover 3 and the right sealing cover 4 can be tightly extruded on the inner wall of the gas pipeline after the expansion ring 2 is unfolded in place, so that the plugging purpose is achieved. The utility model realizes self-diversion by arranging the diversion pipe 8 in the support rod 1, and when plugging, the first pipe joint 12 is connected with the hose and the related detection instrument (such as a pressure gauge, etc.), on one hand, the pressure of the gas pipeline can be taken, thereby improving the accuracy of detection and control, on the other hand, the gas can be diffused when needed, thereby improving the safety; the double-sealing structure consisting of the sliding ring 7, the left sealing cover 3, the expansion ring 2, the right sealing cover 4 and the fixing ring 11 is arranged, so that the reliability and the safety of plugging are improved; through making expansion ring 2 set up first arc 21 and second arc 22 that distribute in turn to make the guiding hole 212 on the adjacent first arc 21 form the splayed, under the dual spacing cooperation of slider 221 and spout 211 and guide post 222 and guiding hole 212, only need push away position sliding ring 7 and can make first arc 21 and second arc 22 relative slip and realize strutting or shrink expansion ring 2, have simple structure, the action is steady, control convenient characteristics. It should be noted that the plugging assembly is used by being mounted on a lifting and steering mechanism of a plugging machine through a support lug 5, and the structure and the working principle of the plugging machine are well known to those skilled in the art. In order to ensure the structural stability and the plugging reliability, the end part of the second arc-shaped part 22 is attached to the guide surface of the first arc-shaped part 21; in order to improve the motion sensitivity, the present invention generally arranges two guide posts 222 at intervals on both sides of the sliding block 221, and sleeves are sleeved on the guide posts 222 to realize stable guiding; for guaranteeing the flexible deformation capacity, the utility model discloses make left sealed cowling 3 and right sealed cowling 4 adopt the rubber preparation.

As an optimized scheme, the embodiment provides the first arc-shaped member 21 with the first left pressing portion 213 and the first right pressing portion 214 which are symmetrically distributed, and the first left pressing portion 213 and the first right pressing portion 214 are connected into a whole through the first connecting portion 215; accordingly, the second arc-shaped member 22 is provided with the second left pressing portion 223 and the second right pressing portion 224 which are symmetrically distributed, and the second left pressing portion 223 and the second right pressing portion 224 are connected into a whole through the second connecting portion 225. In practical application, the radii of the first connecting portion 215 and the second connecting portion 225 are smaller than the radii of the first left pressing portion 213, the first right pressing portion 214, the second left pressing portion 223 and the second right pressing portion 224, so that air passages are formed on the peripheries of the first connecting portion 215 and the second connecting portion 225, the left sealing cover 3 is sleeved on the first left pressing portion 213 and the second left pressing portion 223, and the right sealing cover 4 is sleeved on the first right pressing portion 214 and the second right pressing portion 224, so that two independent sealing structures are formed, and the plugging reliability is enhanced. Meanwhile, in the present embodiment, a vent hole is formed between the adjacent first connecting portion 215 and second connecting portion 225, a vent groove 13 communicating with the inner cavity of the support rod 1 is provided between the left sealing cover 3 and the right sealing cover 4, and a second pipe joint 14 communicating with the inner cavity of the support rod 1 is provided at the left end of the support rod 1. The arrangement enables the vent hole, the vent groove 13 and the second pipe joint 14 to form a passage, and when in plugging, the hose and related detection instruments (pressure gauges and the like) are connected on the second pipe joint 14, so that whether the left sealing cover 3 and the right sealing cover 4 leak or not can be accurately judged according to the air pressure change, and the air can be exhausted and diffused in time when leaking, thereby improving the functionality and the safety.

As a specific embodiment, the present invention makes the slip ring 7 adopt the following sliding seal structure: two seal grooves 71 are provided on the inner wall of the slip ring 7, and a seal ring is provided in the seal groove 71. Note that the sealing groove 71 is not limited to two, and may be provided with one or more than three. In order to improve the reliability of the sealing, the support rod 1 of the embodiment is provided with a ring platform 15 at the right side of the slip ring 7, and a sealing gasket 16 is embedded at the left side of the ring platform 15. This arrangement enables the slide ring 7 to be pressed against the sealing gasket 16 during plugging, which effectively increases the sealing ability of the plugging. As a specific embodiment, the utility model discloses make left sealed cowling 3 and sliding ring 7 adopt following sealed fixed mode: the pressure plate 72 is fixed to the left side of the slide ring 7 by a screw, and the left end of the left seal cover 3 is pressed between the slide ring 7 and the pressure plate 72. The structure has the characteristics of reliable sealing and convenient assembly and disassembly. Similarly, the present embodiment adopts the same sealing and fixing manner for the right sealing cover 4 and the fixing ring 11: the blind plate 6 is fixed to the fixing ring 11 by screws, so that the right end of the right boot seal 4 is pressed between the blind plate 6 and the fixing ring 11.

As a specific implementation mode, the utility model arranges a left expansion joint 31 on the left sealing cover 3, and arranges left ring grooves 32 which are distributed at intervals on the outer wall of the left sealing cover 3 at the position corresponding to the expansion ring 2; the right sealing cover 4 is provided with a right telescopic joint 41, and the outer wall of the right sealing cover 4 corresponding to the expansion ring 2 is provided with right ring grooves 42 distributed at intervals. Through setting up left telescopic joint 31 and right telescopic joint 41, correspond the tensile deformability and the adaptability that have improved left sealed cowling 3 and right sealed cowling 4, through setting up left annular 32 and right annular 42, correspond the shutoff reliability that has improved left sealed cowling 3 and right sealed cowling 4. In practical application, for connecting sliding ring actuating mechanism, the utility model discloses symmetrical distribution's otic placode 73 around having fixed through the screw on pressure disk 72 to make journal stirrup 5 adopt flange structure and bracing piece 1 sealed fixed, so that the dismouting of being convenient for. To simplify the structure, the present invention generally provides four first arc members 21 and four second arc members 22. It should be noted that the first arc-shaped part 21 and the second arc-shaped part 22 are not limited to four, and may be three or more than five as required.

The above embodiments are only descriptions of the preferred embodiments of the present invention, and are not intended to limit the scope of the claimed invention, and various modifications made by those skilled in the art according to the technical solutions of the present invention should fall within the scope of the present invention as defined by the claims.

Claims (10)

1. A self-flow-guide pipeline plugging assembly comprises a support rod (1), an expansion ring (2), a left sealing cover (3) and a right sealing cover (4), and is characterized in that the support rod (1) is of a tubular structure, a support lug (5) and a blind plate (6) are correspondingly and hermetically fixed at the left end and the right end of the support rod, a fixing ring (11) is arranged on the support rod (1) at the left side of the blind plate (6), a sliding ring (7) is sleeved on the support rod (1) at the left side of the fixing ring (11), a sliding sealing structure is arranged between the sliding ring (7) and the support rod (1), a flow guide pipe (8) is arranged in the support rod (1), the left end of the flow guide pipe (8) is connected with a first pipe joint (12) on the support rod (1), the right end of the flow guide pipe (8) penetrates through the blind plate (6) and enables the blind plate and the blind plate to be hermetically matched with the blind plate, the expansion ring (2) is formed by combining a first arc-shaped part (21) and a second arc-shaped part (22) which are alternately distributed, the two ends of the first arc-shaped part (21) are provided with guide surfaces which incline inwards and are symmetrically distributed, a sliding groove (211) is arranged on the guide surfaces, two side walls of the sliding groove (211) are provided with guide holes (212), the guide holes (212) on the adjacent first arc-shaped parts (21) are splayed, the middle part of the second arc-shaped part (22) is respectively hinged with the fixed ring (11) and the sliding ring (7) through connecting rods (9) which are symmetrically distributed, two ends of the second arc-shaped part (22) are provided with sliding blocks (221) matched with the sliding groove (211), two sides of each sliding block (221) are provided with guide columns (222) positioned in the guide holes (212), the left end of the left sealing cover (3) is fixedly connected with the sliding ring (7) in a sealing way, the right end of the left sealing cover (3) is sleeved on the expansion ring (2) and fixedly connected with the first arc-shaped part (21), and the right end of the right sealing cover (4) is fixedly connected with the fixed ring (11) in a sealing way, the left end of the right sealing cover (4) is sleeved on the expansion ring (2) and is fixedly connected with the first arc-shaped part (21).

2. The self-conductance pipeline plugging assembly according to claim 1, wherein the first arc-shaped member (21) comprises a first left pressing portion (213) and a first right pressing portion (214) which are symmetrically distributed, the first left pressing portion (213) and the first right pressing portion (214) are connected into a whole by a first connecting portion (215), the second arc-shaped piece (22) comprises a second left extrusion part (223) and a second right extrusion part (224) which are symmetrically distributed, the second left extrusion part (223) and the second right extrusion part (224) are connected into a whole through a second connecting part (225), and a vent hole is formed between the adjacent first connecting part (215) and the second connecting part (225), a vent groove (13) communicated with the inner cavity of the support rod (1) is formed in the support rod (1) between the left sealing cover (3) and the right sealing cover (4), and a second pipe joint (14) communicated with the inner cavity of the support rod (1) is arranged at the left end of the support rod.

3. The self-diversion pipeline plugging assembly according to claim 2, wherein a sealing groove (71) is formed in the inner wall of the sliding ring (7), a sealing ring is arranged in the sealing groove (71), the supporting rod (1) is provided with a ring platform (15) on the right side of the sliding ring (7), and a sealing gasket (16) is embedded in the left side of the ring platform (15).

4. A self-conductance pipeline-blocking assembly according to claim 3, wherein a pressure plate (72) is fixed to the left side of the sliding ring (7) by screws, the left end of the left sealing cover (3) is pressed between the sliding ring (7) and the pressure plate (72), the blind plate (6) is fixed to the fixed ring (11) by screws, and the right end of the right sealing cover (4) is pressed between the blind plate (6) and the fixed ring (11).

5. The self-diversion pipeline plugging assembly according to claim 4, wherein the left sealing cover (3) is provided with a left expansion joint (31), the outer wall of the left sealing cover (3) corresponding to the expansion ring (2) is provided with left ring grooves (32) distributed at intervals, the right sealing cover (4) is provided with a right expansion joint (41), and the outer wall of the right sealing cover (4) corresponding to the expansion ring (2) is provided with right ring grooves (42) distributed at intervals.

6. A self-catheter tube-plugging assembly according to claim 5, wherein said pressure plate (72) is fixed with ear plates (73) which are symmetrically arranged in front and back by screws.

7. The self-flow-guide pipeline plugging assembly according to claim 6, wherein two guide posts (222) are respectively arranged at intervals on two sides of the sliding block (221), and a shaft sleeve is sleeved on each guide post (222).

8. A self-conductance pipeline-blocking assembly according to claim 6, wherein the support lug (5) is fixedly connected with the support rod (1) in a sealing manner through a flange.

9. A self-conductance pipeline-blocking assembly according to claim 6, wherein the left sealing cover (3) and the right sealing cover (4) are made of rubber material.

10. A self-diverting pipeline-plugging assembly according to claim 6, characterized in that said first arc-shaped member (21) and said second arc-shaped member (22) are respectively provided in four numbers.

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