CN213809468U - Temporary inflatable sealing blind plate for long-distance pipeline - Google Patents

Abstract

The utility model relates to shutoff blind plate technical field, concretely relates to long defeated pipeline seals blind plate by temporary gas filling. Including the baffle, the baffle rear end is provided with rather than endocentric closure plate, be provided with solid fixed ring between closure plate and the baffle, gu fixed ring and baffle and closure plate fixed connection, the closure plate rear end is fixed with rather than endocentric reinforcing plate, the inlet end of inflatable rubber seal's air cock runs through behind closure plate and the reinforcing plate and extends to the reinforcing plate rear side, it has rather than endocentric bull stick to rotate sealing connection on the reinforcing plate, threaded connection has the swivel nut on the bull stick of baffle front side, equal hinged joint has the pendulum rod on the first otic placode, one of first otic placode is kept away from to the pendulum rod serves the hinge and is connected with the arc, the pendulum rod middle part is connected with the branch hinge, branch is connected with the baffle hinge. The utility model discloses, the shutoff is sealed effectual, can completely cut off in the infiltration pipeline of muddy water, guarantees the clean quality in the pipeline, can use repeatedly, saves the input of people, material, machine, and the group has improved the efficiency of construction when welding under the ditch.

Description

Temporary inflatable sealing blind plate for long-distance pipeline

Technical Field

The utility model relates to shutoff blind plate technical field, concretely relates to long defeated pipeline seals blind plate by temporary gas filling.

Background

The temporary blind plate is very commonly used in the construction process of the long-distance pipeline, is a necessary inspection point for safety quality inspection in the construction stage, and plays an extremely important role in preventing people or small animals from entering the pipeline, wherein whether the blind plate is plugged correctly or not affects each subsequent process; secondly, tools and tools left in the pipe during construction are not taken out; thirdly, people along the line are prevented from intentionally losing stone blocks into the tube; fourthly, prevent that ponding or rainy season silt from getting into intraductal in the ditch, these all cause immeasurable damage to subsequent company's operation and ball work. The temporary blind plate plugging is a main process for temporary plugging after work every day in the installation process of the long-distance pipeline and plugging at the temporary broken end of the pipeline in the process of passing through a ditch. In the past long-distance pipeline project participating in construction, a steel sheet is adopted to cut a self-made blind plate according to matched pipe diameters, three clamping jaws are arranged in the form of the self-made blind plate, the self-made blind plate is welded on a pipe ring protecting a pipe orifice in a spot welding mode, and the self-made blind plate has the following defects: 1. the method is characterized in that the pipeline with abundant surface water and needing to be ditched is provided with a pipe end blind plate which needs to be fully welded, so that accumulated water and sludge in a ditch are prevented from entering the pipe, the pipe end is cut and a regular groove is trimmed during joint operation, the construction efficiency is reduced, the blind plate cannot be reused, the labor intensity is increased by times, and the like; 2. temporarily plugging a blind plate on a ditch, wherein three clamping jaws or a pipe ring for protecting a pipe orifice are required to be spot-welded on an original groove of a pipe end or a pipe wall base material to generate a heat affected zone, so that intergranular corrosion is caused, and hidden danger is caused to later-stage safe operation of a pipeline; 3. if the blind plate is not welded by the spot welding, the blind plate is lost or damaged frequently in the pipeline construction, and the blind plate needs to be plugged again, so that the loss of people, materials and machines is caused, and the cost control is influenced. 4. When the group is to the welding under the ditch, sudden change weather, interim blind plate is not full weld still easily to intake to can not play the effect of shutoff, because sealed not good, deposit in the intraductal a large amount of ponding and silt greatly increased the degree of difficulty of the work that continues of two days, and influence intraductal clean quality. With the improvement of the quality control standard of the construction process and the working procedure of the long-distance pipeline, the temporary plugging blind plate is subjected to standardized transformation.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that novel structure is reasonable, and convenient to use is swift, the flexible operation, the shutoff is sealed effectual, can completely cut off the infiltration of muddy water, guarantees intraductal clean quality, can use repeatedly, saves the input of people, material, machine, can effectually play the theftproof, prevent the effect of destruction, the group is to the temporary inflatable seal blind plate of long-distance pipeline that has improved the efficiency of construction during the welding under the ditch.

In order to realize the purpose, the utility model provides a technical scheme is:

the temporary inflatable sealing blind plate for the long-distance pipeline comprises a baffle plate, wherein a blocking plate concentric with the baffle plate is arranged at the rear end of the baffle plate, a fixing ring is arranged between the blocking plate and the baffle plate and fixedly connected with the baffle plate and the blocking plate, an annular space for storing an inflatable rubber sealing ring is formed among the outer edge of the fixing ring, the baffle plate and the blocking plate, a reinforcing plate concentric with the blocking plate is fixed at the rear end of the blocking plate, the inflatable rubber sealing ring is placed in the annular space, the air inlet end of an air nozzle of the inflatable rubber sealing ring penetrates through the blocking plate and the reinforcing plate and then extends to the rear side of the reinforcing plate, a rotating rod concentric with the reinforcing plate is connected to the reinforcing plate in a rotating and sealing mode, the front end of the rotating rod penetrates through a first through hole and a second through hole in the blocking plate and the baffle plate, external threads are formed in the rotating rod at the front side of the baffle plate, two first lug plates are symmetrically fixed at the outer edge of the screw sleeve, and swing rods are hinged to the first lug plates, one end of the swing rod, which is far away from the first lug plate, inclines towards the front side direction, the end of the swing rod, which is far away from the first lug plate, is hinged with an arc-shaped plate, the middle part of the swing rod is hinged with a supporting rod, and the supporting rod is hinged with a baffle plate.

Specifically, all be fixed with the fender ring on the bull stick of both sides around the reinforcing plate, all overlap on the bull stick between fender ring and the reinforcing plate and be equipped with the sealing ring, fender ring and reinforcing plate pass through sealing ring rotation sealing connection.

Specifically, the rear end of the rotating rod is provided with a hole.

Specifically, the reinforcing plate is fixedly connected with the blocking plate through two symmetrically arranged reinforcing ribs.

Specifically, a second lug plate is fixed on the inner edge of the arc-shaped plate, the second lug plate is hinged with the swing rod, and anti-skid grains are processed on the outer edge of the arc-shaped plate.

Specifically, the screw thread sealing connection has the nut on the air inlet end of air cock, the nut is special-shaped nut.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses, simple structure, convenient operation, novel structure is reasonable, and convenient to use is swift, the flexible operation, the shutoff is sealed effectual, in can completely cut off the infiltration pipeline of muddy water, guarantees the clean quality in the pipeline, can use repeatedly, can effectually play the theftproof, prevent the effect of destruction, save the input of people, material, machine, the group has improved the efficiency of construction when welding under the ditch.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

As shown in figure 1, the temporary inflation sealing blind plate for the long-distance pipeline comprises a baffle plate 1, a blocking plate 3 concentric with the baffle plate 1 is arranged at the rear end of the baffle plate 1, a fixing ring 2 is arranged between the blocking plate 3 and the baffle plate 1, the fixing ring 2 is fixedly connected with the baffle plate 1 and the blocking plate 3, an annular space for storing an inflation rubber sealing ring 17 is formed among the outer edge of the fixing ring 2, the baffle plate 1 and the blocking plate 3, a reinforcing plate 4 concentric with the blocking plate 3 is fixed at the rear end of the blocking plate 3, the reinforcing plate 4 is fixedly connected with the blocking plate 3 through two symmetrically arranged reinforcing ribs 5, the inflation rubber sealing ring 17 is placed in the annular space, the air inlet end of an air nozzle 18 of the inflation rubber sealing ring 17 penetrates through the blocking plate 3 and the reinforcing plate 4 and extends to the rear side of the reinforcing plate 4, a nut is connected to the air inlet end of the air nozzle 18 in a threaded sealing manner, the nut is a special-shaped nut, and the special-shaped nut needs to be disassembled by a special tool, therefore, the air-filled rubber packing 17 can be prevented from being deflated, and the function of preventing theft or damage can be achieved.

The reinforced plate 4 is connected with a rotating rod 6 concentric with the reinforced plate in a rotating and sealing manner, the rear end of the rotating rod 6 is provided with an opening 9, the rotating rods 6 on the front side and the rear side of the reinforced plate 4 are respectively fixed with a baffle ring 7, the rotating rod 6 between the baffle ring 7 and the reinforced plate 4 is respectively sleeved with a sealing ring 8, the baffle ring 7 is connected with the reinforced plate 4 in a rotating and sealing manner through the sealing ring 8, the front end of the rotating rod 6 penetrates through a first through hole 10 and a second through hole 19 on the baffle plate 3 and the baffle plate 1, the rotating rod 6 on the front side of the baffle plate 1 is provided with an external thread, the rotating rod 6 on the front side of the baffle plate 1 is connected with a threaded sleeve 11 in a threaded manner, the outer edge of the threaded sleeve 11 is symmetrically fixed with two first lug plates 12, the first lug plates 12 are respectively connected with a swing rod 13, one end of the swing rod 13 far away from the first lug plate 12 is inclined towards the front side direction, one end of the swing rod 13 far away from the first lug plate 12 is connected with a hinged plate 16, the inner edge of the curved plate 16 is fixed with a second lug plate 15, the second ear plate 15 is hinged with the swing rod 13, anti-skid lines are processed on the outer edge of the arc plate 16, the middle part of the swing rod 13 is hinged with the supporting rod 14, and the supporting rod 14 is hinged with the baffle 1.

When the utility model is used, the baffle 1 is arranged in the pipeline, then the end opening of the pipeline is sealed by the plugging plate 3, the pull rod is inserted into the open pore 9, then the rotating rod 6 is rotated by using a pull rod, the threaded sleeve 11 moves towards the middle direction of the pipeline, the swing rod 13 tends to be vertical to the rotating rod 6, when the arc-shaped plate 16 tightly abuts against the outer edge of the pipeline, the rotating rod 6 is continuously rotated, under the action of the friction force between the arc-shaped plate 16 and the inner edge of the pipeline, the utility model has the tendency of moving towards the middle part of the pipeline, therefore, the blocking plate 3 can be tightly pressed against the pipeline port, the utility model can be stably fixed at the pipeline port, then the screw cap at the air inlet end of the air tap 18 is disassembled by using a special tool, then the air is filled into the air-filled rubber sealing ring 17, the air-filled rubber sealing ring 17 is expanded, the inflatable rubber sealing ring 17 is tightly abutted and in sealing contact with the inner edge of the pipeline, and the inflatable rubber sealing ring 17 can prevent muddy water from permeating into the pipeline.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (6)

1. Long defeated pipeline is inflatable seal blind plate temporarily, including baffle (1), a serial communication port, baffle (1) rear end is provided with rather than endocentric closure plate (3), be provided with solid fixed ring (2) between closure plate (3) and baffle (1), gu fixed ring (2) and baffle (1) and closure plate (3) fixed connection, gu fixed ring (2) outer fringe, constitute the annular space that is used for depositing inflatable rubber seal (17) between baffle (1) and the closure plate (3), closure plate (3) rear end is fixed with rather than endocentric reinforcing plate (4), inflatable rubber seal (17) are placed in the annular space, the inlet end of air cock (18) of inflatable rubber seal (17) runs through behind closure plate (3) and reinforcing plate (4) and extends to reinforcing plate (4) rear side, the last rotary seal of reinforcing plate (4) is connected with rather than endocentric bull stick (6), bull stick (6) front end runs through first through-hole (10) and second through-hole on closure plate (3) and baffle (1) and baffle (6) (19) The baffle plate comprises a baffle plate body (1), wherein the baffle plate body is provided with a rotating rod (6) at the front side of the baffle plate body (1), the rotating rod (6) at the front side of the baffle plate body (1) is provided with an external thread, the rotating rod (6) at the front side of the baffle plate body (1) is provided with a threaded sleeve (11), two first lug plates (12) are symmetrically and fixedly arranged at the outer edges of the threaded sleeve (11), the first lug plates (12) are hinged to swing rods (13), one ends, far away from the first lug plates (12), of the swing rods (13) incline towards the front side direction, one ends, far away from the first lug plates (12), of the swing rods (13) are hinged to arc plates (16), the middle parts of the swing rods (13) are hinged to supporting rods (14), and the supporting rods (14) are hinged to the baffle plate body (1).

2. The temporary inflatable sealing blind plate for the long-distance pipeline according to claim 1, wherein the rotating rods (6) at the front side and the rear side of the reinforcing plate (4) are respectively fixed with a baffle ring (7), the rotating rods (6) between the baffle ring (7) and the reinforcing plate (4) are respectively sleeved with a sealing ring (8), and the baffle ring (7) and the reinforcing plate (4) are in rotating sealing connection through the sealing rings (8).

3. The temporary inflation sealing blind plate for the long-distance pipeline according to claim 1, wherein the rear end of the rotating rod (6) is provided with an opening (9).

4. The temporary inflation sealing blind plate for the long-distance pipeline according to claim 1, wherein the reinforcing plate (4) is fixedly connected with the blocking plate (3) through two symmetrically arranged reinforcing ribs (5).

5. The temporary inflation sealing blind plate for the long-distance pipeline according to claim 1, wherein a second lug plate (15) is fixed on the inner edge of the arc-shaped plate (16), the second lug plate (15) is hinged with the swing rod (13), and anti-skid lines are processed on the outer edge of the arc-shaped plate (16).

6. The temporary inflation sealing blind plate for the long pipeline according to claim 1, wherein a nut is connected to the air inlet end of the air nozzle (18) in a threaded sealing manner, and the nut is a special-shaped nut.

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