Temporary plugging equipment for pipeline construction

Abstract

The utility model discloses temporary plugging equipment for pipeline construction, which comprises an air bag piece inserted in a pipe body and a supporting pipe, the air bag piece is an annular air bag, the annular air bag is fixedly sleeved on the surface of the supporting pipe, the front end part of the supporting pipe is sealed and is provided with a blocking piece, and the rear end part of the supporting pipe is fixedly connected with a supporting frame. A plurality of positioning assemblies are arranged in the circumferential direction of the supporting frame, each positioning assembly comprises a positioning piece fixedly connected to the surface of the supporting frame and a threaded rod in threaded connection with the interior of the positioning piece, one end of each threaded rod extends into the supporting frame and is fixedly connected with an adjusting piece, the other end of each threaded rod is fixedly connected with an abutting block, and the abutting blocks abut against the inner wall of the pipe body; due to the fact that the positioning piece is supported on the inner wall of the pipe body, the annular air bag cannot be flushed out of a pipeline opening by strong water pressure immediately, blocked accumulated water can be slowly released from the periphery of the annular air bag, after the accumulated water is released, the abutting block does not abut against the inner wall of the pipe body through the adjusting screw rod, the whole device is slowly withdrawn, and safety of withdrawing operation of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline construction, in particular to temporary blocking equipment for pipeline construction. Background Art

[0002] There are great difficulties in pipeline construction during the rainy season. When it rains during the construction process, rainwater entering the pipeline is likely to cause continuous water accumulation in the pipeline. Workers generally use pipeline plugging airbags to plug the exposed pipeline openings. The pipeline plugging airbags are inflated by inflation. When the gas pressure in the pipeline plugging airbags reaches the specified requirements, the pipeline plugging airbags fill the entire pipeline section, and use the friction between the pipeline plugging airbag wall and the pipeline to plug the water leakage, thereby achieving rapid blocking of the water flow in the target pipe section. However, when the water flow in the pipeline is large and the water pressure is too high, during the withdrawal of the plugging airbag, the high-pressure water accumulation may directly flush the airbag out of the pipe opening, and the large-flow water flow will directly leak out, resulting in a certain degree of danger in the withdrawal operation. Therefore, a temporary plugging device for pipeline construction is proposed here to solve the above problems. Summary of the invention

[0003] The utility model aims to provide a temporary plugging device for pipeline construction in view of the problems existing in the prior art.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A temporary plugging device for pipeline construction comprises an airbag component inserted into a pipe body and a support tube, wherein the airbag component is an annular airbag fixedly sleeved on the surface of the support tube, the front end of the support tube is sealed and provided with a baffle, the rear end of the support tube is fixedly connected to a support frame, a plurality of positioning components are provided around the support frame, the positioning component comprises a positioning component fixedly connected to the surface of the support frame, and a screw threadedly connected to the positioning component, one end of the screw extends into the support frame and is fixedly connected to an adjusting component, the other end of the screw is fixedly connected to a stop block, and the stop block abuts against the inner wall of the pipe body.

[0006] In some embodiments, the support frame is in the shape of a circular tray, and a reinforcement ring is welded between the circular surface of the inner wall of the support frame and the surface of the support tube. The cross-section of the reinforcement ring is a triangle, and the two right-angled sides of the triangle are respectively welded and fixed to the surface of the support tube and the circular surface of the inner wall of the support frame.

[0007] In some embodiments, the stop block is welded and fixed on the screw rod, the stop block is cylindrical in shape, and the adjusting member is welded and fixed on the circumference of the screw rod.

[0008] In some embodiments, an inflation head is fixedly connected to the surface of the support tube, and an output end of the inflation head extends into the interior of the airbag and is glued and fixed to the airbag.

[0009] In some embodiments, a joint is fixedly connected to the inner side of the baffle, and is threadedly connected to the front end of the support tube through the joint. The baffle is an umbrella-shaped structure as a whole, and the inner side of the umbrella-shaped structure is close to the front end of the annular airbag. A gap is left between the baffle and the tube body in the circumferential direction.

[0010] In some embodiments, the other end of the support tube is fixedly connected to a pneumatic hose, and an air pump is externally connected to the pneumatic hose.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. Since the screw is threadedly connected in the positioning piece, when the screw is adjusted and rotated by the adjusting piece, the screw can move toward the center direction of the support frame or the length direction of the screw on the support frame. When the screw moves in its length direction, it can drive the abutment block to abut and fix on the inner wall of the tube body, thereby playing a supporting role for the support tube, which is suitable for tubes of various diameters.

[0013] 2. When the annular airbag is deflated and withdrawn, since the positioning piece is supported on the inner wall of the pipe body, the annular airbag will not be immediately washed out of the pipe mouth by the strong water pressure. After the accumulated water is discharged, the screw is adjusted so that the abutment block does not abut against the inner wall of the pipe body, and the entire device can be withdrawn, which improves the safety of the device withdrawal operation.

[0014] 3. The barrier is an umbrella-shaped structure as a whole. When the muddy water carried by the accumulated water in the pipeline contains sharp objects, the barrier can block them, effectively preventing the sharp objects impacted by the accumulated water from directly contacting the annular airbag and causing scratches or damage to it, thus playing a certain protective role. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front cross-sectional structure of a temporary plugging device for pipeline construction according to the utility model;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the support frame of the utility model;

[0017] Figure 3 The utility model is a front view structural schematic diagram of a temporary plugging device for pipeline construction.

[0018] In the figure: 1. tube body; 2. annular airbag; 3. support tube; 4. inflation head; 5. air pressure hose; 6. support frame; 601. reinforcement ring; 7. positioning member; 8. screw; 9. adjustment member; 10. stop block; 11. joint; 12. barrier member. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] like Figure 1-3 As shown, a temporary plugging device for pipeline construction includes an airbag component inserted into a pipe body 1 and a support tube 3, the airbag component is an annular airbag 2, the annular airbag 2 is fixedly sleeved on the surface of the support tube 3, the front end of the support tube 3 is sealed, and a baffle 12 is provided, the rear end of the support tube 3 is fixedly connected to a support frame 6, and a plurality of positioning components are provided around the support frame 6, the positioning component includes a positioning member 7 fixedly connected to the surface of the support frame 6, and a screw 8 threadedly connected to the positioning member 7, one end of the screw 8 extends into the support frame 6 and is fixedly connected to an adjusting member 9, the other end of the screw 8 is fixedly connected to a stop block 10, and the stop block 10 abuts against the inner wall of the pipe body 1.

[0021] In this embodiment, Figure 2 As shown, three positioning members 7 are provided, and the positioning members 7 are threadedly connected to the support frame 6. In other embodiments, four, five or six positioning members 7 can be provided. The supporting effects are different depending on the number of positioning members 7 installed, and the number of positioning members 7 installed can be selected according to the actual situation of the tube body 1.

[0022] Since the screw 8 is threadedly connected in the positioning member 7, when the screw 8 is adjusted and rotated by the adjusting member 9, the screw 8 can move on the support frame 6 toward the center direction of the support frame 6 or the length direction of the screw 8. When the screw 8 moves in its length direction, it can drive the stop block 10 to abut and be fixed on the inner wall of the tube body 1, thereby playing a supporting role for the support tube 3, and then further supporting the annular airbag 2. When the annular airbag 2 is deflated and withdrawn, the annular airbag 2 slowly shrinks. Since the positioning member 7 is supported on the inner wall of the tube body 1, the annular airbag 2 will not be immediately flushed out of the pipeline port by the strong water pressure, and the blocked accumulated water can slowly leak out from all around the annular airbag 2. After the accumulated water is leaked, the screw 8 is adjusted to prevent the stop block 10 from abutting against the inner wall of the tube body 1, and the entire device is slowly withdrawn, thereby improving the safety of the device withdrawal operation.

[0023] In some embodiments, the support frame 6 is in the shape of a circular tray, and a reinforcement ring 601 is welded between the inner circular surface of the support frame 6 and the surface of the support tube 3. The cross section of the reinforcement ring 601 is a triangle, and the two right-angled sides of the triangle are respectively welded and fixed to the surface of the support tube 3 and the inner circular surface of the support frame 6. In other embodiments, the cross section of the reinforcement ring 601 can be a right-angled trapezoid, and the right-angled sides and the lower bottom of the right-angled trapezoid are respectively welded and fixed to the surface of the support tube 3 and the inner wall of the support frame 6, so as to strengthen the connection strength between the support frame 6 and the support tube 3.

[0024] In some embodiments, the stop block 10 is welded and fixed on the screw rod 8 , the stop block 10 is cylindrical in shape, and the adjusting member 9 is welded and fixed on the circumference of the screw rod 8 .

[0025] In this embodiment, the shape of the stop block 10 is cylindrical, and the stop block 10 rotates along with the screw 8 during the rotation process. After the stop block 10 abuts against the inner wall of the tube body 1, the setting of the cylinder is not easy to affect the rotation of the stop block 10. In other embodiments, the stop block 10 can be set as an arc-shaped strip structure. When the positioning member 7 is connected to the tube body 1, the outer wall of the arc strip fits the inner wall of the tube body 1, and a dark groove is provided inside the arc strip. The screw 8 extends into the dark groove and is fixedly connected to a limit member. The limit member restricts the screw 8 from detaching from the arc strip, and the arc strip can be rotatably connected to the screw 8. The arc strip is driven by rotating the screw 8 to abut against the tube body 1 to achieve connection with the tube body 1.

[0026] In some embodiments, an inflation head 4 is fixedly connected to the surface of the support tube 3, and the output end of the inflation head 4 extends to the interior of the airbag and is glued and fixed to the airbag. By inflating the support tube 3, air flow passes through the inflation head 4 to transport air to the interior of the annular airbag 2, thereby achieving expansion of the annular airbag 2.

[0027] In some embodiments, a joint 11 is fixedly connected to the inner side of the baffle 12, and is threadedly connected to the front end of the support tube 3 through the joint 11. The baffle 12 is an umbrella-shaped structure as a whole, and the inner side of the umbrella-shaped structure is close to the front end of the annular airbag 2. A gap is left between the baffle 12 and the tube body 1 in the circumferential direction.

[0028] In this embodiment, the barrier 12 is an umbrella-shaped structure as a whole. When the muddy water carried by the accumulated water in the pipeline contains sharp objects, the barrier 12 can block them, effectively preventing the sharp objects impacted by the accumulated water from directly contacting the annular airbag 2 and causing scratches or damage to it, thereby playing a certain protective role; in other embodiments, the barrier 12 can also be set to a disc-shaped or hemispherical shape or other shape structure that can protect the annular airbag 2.

[0029] In some embodiments, the other end of the support tube 3 is fixedly connected to a pneumatic hose 5 , and an air pump is externally connected through the pneumatic hose 5 , and the output end of the air pump is fixedly connected to the air inlet of the pneumatic hose 5 .

[0030] The operation steps of this specific implementation method are:

[0031] First, put the deflated annular airbag 2 into the pipe mouth to a certain depth, and then inflate the annular airbag 2 through the air pressure hose 5 connected to the external air pump. During this process, the output end of the air pump supplies gas to the air pressure hose 5, and the gas is transported to the support tube 3 through the air pressure hose 5, and then transported to the inside of the annular airbag 2 by the inflation head 4 on the support tube 3. The annular airbag 2 slowly expands, and its outer wall is tightly attached to the inner wall of the tube body 1. Then, the adjusting member 9 is rotated to drive the screw 8 to rotate, and the screw 8 moves on the support frame 6 in the direction of the screw 8's own length. During the movement of the screw 8, the block 10 is driven to abut and be fixed on the inner wall of the tube body 1, completing the connection between the entire device and the tube body 1; when the annular airbag 2 is deflated and withdrawn, the pneumatic hose 5 is disconnected from the inflation pump, and the gas in the annular airbag 2 passes through the inflation head 4 and the support tube 3 and is discharged from the inlet of the pneumatic hose 5. The annular airbag 2 slowly shrinks, and the blocked accumulated water slowly leaks out from around the annular airbag 2. After the accumulated water is leaked out, the screw 8 is adjusted so that the block 10 does not abut against the inner wall of the tube body 1, and the entire device can be slowly withdrawn.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A temporary plugging device for pipeline construction, characterized in that: The invention comprises an airbag component inserted into a tube body (1) and a support tube (3), wherein the airbag component is an annular airbag (2), the annular airbag (2) is fixedly sleeved on the surface of the support tube (3), the front end of the support tube (3) is sealed and provided with a baffle (12), the rear end of the support tube (3) is fixedly connected to a support frame (6), the support frame (6) is provided with a plurality of positioning components in the circumferential direction, the positioning components comprising a positioning component (7) fixedly connected to the surface of the support frame (6), and a screw (8) threadedly connected to the positioning component (7), one end of the screw (8) extends into the support frame (6) and is fixedly connected to an adjusting component (9), the other end of the screw (8) is fixedly connected to a stopper (10), and the stopper (10) is in contact with the inner wall of the tube body (1).

2. A temporary plugging device for pipeline construction according to claim 1, characterized in that: The support frame (6) is in the shape of a circular tray, and a reinforcement ring (601) is welded between the circular surface of the inner wall of the support frame (6) and the surface of the support tube (3).

3. A temporary plugging device for pipeline construction according to claim 2, characterized in that: The reinforcing ring (601) has a triangular cross-section, and two right-angled sides of the triangle are respectively welded and fixed to the surface of the support tube (3) and the circular surface of the inner wall of the support frame (6).

4. A temporary plugging device for pipeline construction according to claim 1, characterized in that: The stop block (10) is welded and fixed on the screw rod (8), and the stop block (10) is cylindrical in shape.

5. A temporary plugging device for pipeline construction according to claim 1, characterized in that: The adjusting member (9) is welded and fixed in the circumferential direction of the screw rod (8).

6. A temporary plugging device for pipeline construction according to claim 1, characterized in that: An inflation head (4) is fixedly connected to the surface of the support tube (3); an output end of the inflation head (4) extends into the interior of the airbag and is glued and fixed to the airbag.

7. A temporary plugging device for pipeline construction according to claim 1, characterized in that: A joint (11) is fixedly connected to the inner side of the baffle (12), and is threadedly connected to the front end of the support tube (3) via the joint (11).

8. A temporary plugging device for pipeline construction according to claim 1, characterized in that: The barrier member (12) is in an umbrella-shaped structure as a whole, and the inner side of the umbrella-shaped structure is close to the front end of the annular airbag (2).

9. A temporary plugging device for pipeline construction according to claim 1, characterized in that: A gap is left between the baffle (12) and the tube body (1) in the circumferential direction.

10. A temporary plugging device for pipeline construction according to claim 1, characterized in that: The other end of the support tube (3) is fixedly connected to a pneumatic hose (5), and is externally connected to an air pump via the pneumatic hose (5).

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