Temporary plugging device for municipal water supply and drainage pipeline

Abstract

The utility model belongs to the technical field of pipeline plugging, and discloses a municipal water supply and drainage pipeline temporary plugging device which comprises a water inlet ring, an expansion outer ring is arranged on the outer side of the water inlet ring, and an anti-skid outer layer is arranged on the outer surface of the expansion outer ring. Compared with the prior art, the expansion outer ring, the anti-skid outer layer, the water inlet ring, the guide cylinder, the eduction tube and the valve are designed, so that water flow in a pipeline flows into the guide cylinder through the water inlet ring when plugging operation is carried out; and then the liquid is gathered to the eduction tube and discharged outwards through the valve. Meanwhile, the expansion outer ring is inflated, the anti-skid outer layer can be tightly attached to the inner wall of the pipeline under the expansion effect of the expansion outer ring, the sealing and anti-skid effects are achieved, then the valve is closed, and temporary plugging operation of the pipeline can be smoothly achieved. The whole plugging process is easy, convenient and efficient to operate, and due to the flow guide design of the flow guide cylinder and the guide-out pipe before plugging, the plugging difficulty can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of pipeline plugging, particularly relates to a municipal water supply and drainage pipeline temporary plugging device. BACKGROUND

[0002] The municipal water supply and drainage pipeline plays a very key role in the process of urban infrastructure construction and maintenance. The municipal water supply and drainage pipeline temporary plugging device is mainly used for preventing water or other media in the pipeline from leaking during pipeline repair, reconstruction, inspection and other operations, ensuring the safety and dryness of the construction area and ensuring that the construction can proceed smoothly. At present, the direct plugging method is usually adopted, that is, a plugging material such as a rubber plug or an air bag is directly inserted or inflated in the pipeline to achieve the purpose of cutting off the water flow.

[0003] However, when there is water flow in the pipeline, direct plugging faces many difficult problems. The impact force generated by the continuous flow of water will directly act on the plugging material, making it difficult to accurately and stably place in the predetermined plugging position. At the same time, the direct plugging method has serious defects in water flow guidance. Because it lacks effective design specifically for water flow guidance, water flow is difficult to be orderly guided and controlled, making it difficult to achieve the goal of cutting off the water flow, thereby greatly increasing the difficulty of plugging work.

[0004] In view of this, the present application provides a municipal water supply and drainage pipeline temporary plugging device to solve the above problems. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model aims to provide a municipal water supply and drainage pipeline temporary plugging device. When plugging operation is performed, the water flow in the pipeline will flow into the flow guide cylinder through the water inlet ring, then converge to the outlet pipe, and finally be discharged outward through the valve. This design of plugging and flow guidance can reduce the difficulty of plugging. To solve the problems raised in the background art.

[0006] The present application specifically adopts the following technical solutions to achieve the above-mentioned purposes:

[0007] A municipal water supply and drainage pipeline temporary plugging device, comprising a water inlet ring, an expansion outer ring is arranged outside the water inlet ring, and an anti-slip outer layer is arranged on the outer surface of the expansion outer ring; a flow guide cylinder with a conical structure is installed behind the water inlet ring, a discharge pipe is fixedly installed at the rear end of the flow guide cylinder, and a valve is fixedly connected to the rear end of the discharge pipe; an inner support assembly for positioning the water inlet ring is arranged at the rear side of the flow guide cylinder.

[0008] Through the technical scheme, the flow guide cylinder adopts a unique conical structure, the design of the cone can effectively converge the water flow, so that the water flow in the pipeline can gradually converge along the conical inner wall of the flow guide cylinder when passing through the flow guide cylinder, thereby smoothly flowing into the outlet pipe. This structure reduces the resistance of the water flow, creates favorable conditions for the water flow, and facilitates accurate control through the valve, so that the water flow in the pipeline can be orderly discharged, effectively ensuring the stability and reliability of the entire pipeline temporary plugging device in the water flow dredging link.

[0009] As a preferred embodiment, the inner support assembly comprises a center ring, a plurality of guide cylinders are arranged around the outer side of the center ring, an extension screw cylinder is arranged in the guide cylinder, a push screw rod is threadedly connected in the extension screw cylinder, and a top head is arranged at the front end of the extension screw cylinder.

[0010] Through the technical scheme, when the push screw rod starts to rotate, based on the interaction between the thread structure of the push screw rod and the thread of the inner wall of the extension screw cylinder, the push screw rod can stably rotate and advance in the extension screw cylinder. The rotational motion is converted into linear motion of the extension screw cylinder in a specific direction. Under the accurate guidance and constraint of the guide cylinder, the extension screw cylinder extends outward along the preset path of the guide cylinder.

[0011] As a preferred embodiment, the guide cylinder is fixedly connected with the center ring through side support rods on both sides, a sliding groove is arranged on both sides of the inner side of the guide cylinder, and a guide sliding strip is arranged on both sides of the extension screw cylinder. The extension screw cylinder is slidably connected with the sliding groove through the guide sliding strip.

[0012] Through the technical scheme, during the movement of the extension screw cylinder, the guide sliding strip connected with the extension screw cylinder will be linked. The guide sliding strip will slide along the straight track under the limitation and guidance of the sliding groove. This structure design can effectively constrain the movement path of the extension screw cylinder, avoiding unstable conditions such as deviation and shaking.

[0013] As a preferred embodiment, a plurality of inner frames are arranged around the inner side of the center ring, bearings are arranged on the rear side of the inner frame, the inner frame is fixedly connected with the inner wall of the center ring on the front side, the push screw rod is fixedly connected with the inner side of the bearing on the rear side, and a hexagonal rotating head is fixedly connected with the rear end of the push screw rod.

[0014] Through the technical scheme, when the push screw rod starts to rotate, the push screw rod will transmit its circular motion to the inner side of the bearing during the rotation process, thereby driving the inner side of the bearing to rotate synchronously, so that the whole transmission process is more smooth and stable.

[0015] As a preferred embodiment, a plurality of connecting rods are fixedly arranged behind the water inlet ring, the plurality of connecting rods are arranged in a ring shape, and the rear end of the connecting rod is fixedly connected with the center ring.

[0016] Through the technical scheme, when the center ring is positioned, a stable mechanical support system is formed through the connecting rod connected with the center ring, and the connecting rod effectively transmits the support force of the water inlet ring to the positioned center ring.

[0017] As a preferred embodiment, a gas pipe is installed behind the water inlet ring, the front end of the gas pipe is fixedly connected with the expanded outer ring, and a gas valve is installed at the rear end of the gas pipe.

[0018] Through the technical scheme, the gas pipe is filled with gas through the gas valve, so that the expanded outer ring is gradually expanded.

[0019] As a preferred embodiment, a fixed rod is fixedly installed on one side of the center ring, one end of the fixed rod is fixedly connected with the gas pipe, and the outer side of the outlet pipe is fixedly connected with the inner wall of the center ring through four positioning rods.

[0020] Through the technical scheme, the design of the fixed rod can position and fix the gas pipe.

[0021] As a preferred embodiment, the anti-skid outer layer is made of rubber material, the expanded outer ring is made of a nylon air bag, and the inner wall of the expanded outer ring is fixedly connected with the outer wall of the water inlet ring through an adhesive.

[0022] Through the technical scheme, the anti-skid outer layer made of rubber material has good sealing effect and friction.

[0023] After the above technical scheme is adopted, the beneficial effects of the utility model are:

[0024] 1. Through the design of the expanded outer ring, the anti-skid outer layer, the water inlet ring, the flow guide cylinder, the outlet pipe and the valve, when the sealing operation is performed, the water flow in the pipeline will flow into the flow guide cylinder through the water inlet ring, then gather to the outlet pipe, and finally be discharged outward through the valve. At the same time, the expanded outer ring is inflated, so that it expands rapidly. During the expansion process, the anti-skid outer layer closely attached to the surface of the expanded outer ring will be closely attached to the inner wall of the pipeline under the action of the expanded outer ring, achieving sealing effect, and the anti-skid outer layer is not easy to slide and displace due to its material properties. After the operation is completed, the valve is closed, and the temporary sealing operation of the pipeline can be smoothly realized. The whole sealing process is simple and efficient, and due to the design of the flow guide cylinder and the outlet pipe before sealing, the sealing difficulty is reduced.

[0025] 2. By designing the inner support assembly, in the plugging process, the four groups of extension screw cylinders extend outward from the outer layer of the center ring, and the top head is in contact with the inner wall of the pipeline, which not only accurately positions the center ring in the center of the pipeline, but also synchronously supports the water inlet ring. The synergistic effect enables the water inlet ring and the expanded outer ring to maintain a stable plugging state under complex water flow environment and variable pressure conditions, effectively resisting water flow impact and pressure fluctuations. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0027] Figure 1 It is a whole structure schematic view of the temporary plugging device for municipal water supply and drainage pipeline of the present application.

[0028] Figure 2 It is a structure schematic view of another perspective of the temporary plugging device for municipal water supply and drainage pipeline of the present application.

[0029] Figure 3 It is a structure schematic view of right perspective of the temporary plugging device for municipal water supply and drainage pipeline of the present application.

[0030] Figure 4 It is an enlarged schematic view of A part of Figure 1

[0031] Figure 5 It is an enlarged schematic view of B part of Figure 2

[0032] In the figure, 1, water inlet ring; 2, connecting rod; 3, expanded outer ring; 4, anti-skid outer layer; 5, inner support assembly; 51, center ring; 52, guide cylinder; 53, side support rod; 54, extension screw cylinder; 55, top head; 56, inner frame; 57, push screw; 58, bearing; 59, hexagonal rotating head; 510, guide sliding bar; 6, fixed rod; 7, flow guide cylinder; 8, outlet pipe; 9, valve; 10, air valve; 11, air pipe; 12, positioning rod. DETAILED DESCRIPTION

[0033] ​​Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0034] Please refer to Figures 1 to 5 The utility model provides a kind of municipal water supply and drainage pipeline temporary plugging device, including water inlet ring 1, water inlet ring 1 outside is equipped with expansion outer ring 3, expansion outer ring 3 outer surface is equipped with antiskid outer layer 4;Water inlet ring 1 rear is equipped with the flow guide cylinder 7 of conical structure, flow guide cylinder 7 rear end is fixedly installed with lead-out pipe 8, lead-out pipe 8 rear end is fixedly connected with valve 9;Flow guide cylinder 7 rear side is equipped with the inner support component 5 for the positioning of water inlet ring 1.

[0035] The flow guide cylinder 7 of conical structure can make the water flow in the pipeline easily flow into the lead-out pipe 8, and then easily discharge the water flow in the pipeline through the valve 9.

[0036] The inner support component 5 includes a center ring 51, a plurality of guide cylinders 52 are arranged around the outer side of the center ring 51, an extension screw cylinder 54 is arranged in each guide cylinder 52, a push screw 57 is threadedly connected in the extension screw cylinder 54, and a top head 55 is installed at the front end of the extension screw cylinder 54.

[0037] When the push screw 57 rotates, the push screw 57 can rotate and push the extension screw cylinder 54 to move in the extension screw cylinder 54, so as to drive the extension screw cylinder 54 to extend outward along the path of the guide cylinder 52.

[0038] The guide cylinders 52 are fixedly connected with the center ring 51 through side support rods 53 on both sides of the guide cylinders 52, and a sliding groove is formed in the inner sides of the guide cylinders 52, respectively, a guide sliding strip 510 is installed on both sides of the extension screw cylinder 54, and the extension screw cylinder 54 is slidably connected with the sliding groove through the guide sliding strip 510.

[0039] When the extension screw cylinder 54 moves, the guide sliding strip 510 can slide linearly along the sliding groove, so as to ensure the stability and accuracy of the extension action.

[0040] A plurality of inner frames 56 are arranged around the inner side of the center ring 51, respectively, a bearing 58 is installed on the rear side of each inner frame 56, the front side of each inner frame 56 is fixedly connected with the inner wall of the center ring 51, the rear side of the push screw 57 extends into the inner frame 56 and is fixedly connected with the inner side of the bearing 58, and a hexagonal rotating head 59 is fixedly connected with the rear end of the push screw 57.

[0041] When the push screw 57 rotates, the rotation of the push screw 57 can drive the inner side of the bearing 58 to rotate.

[0042] A plurality of connecting rods 2 are fixedly installed at the rear of the water inlet ring 1, and the connecting rods 2 are annularly distributed, with the rear ends of the connecting rods 2 being fixedly connected with the center ring 51.

[0043] When the center ring 51 is positioned, the water inlet ring 1 can be supported by the connecting rods 2, thereby improving the stability of the water inlet ring 1.

[0044] An air pipe 11 is installed at the rear of the water inlet ring 1, with the front end of the air pipe 11 being fixedly connected with the expansion outer ring 3, and the rear end of the air pipe 11 being installed with an air valve 10.

[0045] By using the air valve 10, gas can be filled into the expansion outer ring 3 through the air pipe 11, so that the expansion outer ring 3 is gradually expanded.

[0046] A fixed rod 6 is fixedly installed at one side of the center ring 51, with one end of the fixed rod 6 being fixedly connected with the air pipe 11, and the outer side of the lead-out pipe 8 being fixedly connected with the inner wall of the center ring 51 through four positioning rods 12.

[0047] The design of the fixed rod 6 can position and fix the air pipe 11.

[0048] The anti-skid outer layer 4 is made of rubber material, the expansion outer ring 3 is made of nylon air bag, and the inner wall of the expansion outer ring 3 is adhesively fixed with the outer wall of the water inlet ring 1.

[0049] The anti-skid outer layer 4 made of rubber material has good sealing effect and friction.

[0050] In specific use, the working principle of the utility model is as follows:

[0051] When the device is used, the water inlet ring 1 is first extended into the interior of the water supply and drainage pipeline. At this time, the water flow in the pipeline will flow into the flow guide cylinder 7 along the water inlet ring 1, and is gathered to the guide-out pipe 8 through the flow guide cylinder 7, and finally is discharged outward through the valve 9. At the same time of guiding the water flow to drain, the gas valve 10 is used to fill the gas into the expansion outer ring 3 through the gas pipe 11, so that the expansion outer ring 3 is gradually inflated. With the inflation of the expansion outer ring 3, the anti-skid outer layer 4 on the outer side of the expansion outer ring 3 will be closely attached to the inner wall of the pipeline, not only forming a good sealing effect, but also effectively preventing the expansion outer ring 3 from sliding in the pipeline by the friction force of the anti-skid outer layer 4. Then, the hexagonal rotating head 59 is rotated to drive the advancing screw rod 57 to rotate in the extension screw cylinder 54, so as to drive the extension screw cylinder 54 to extend outward along the path of the guide cylinder 52, so that the top head 55 gradually approaches and contacts the inner wall of the pipeline. In the extension process of the extension screw cylinder 54, the guide sliding strip 510 will slide linearly along the sliding groove, ensuring the stability and accuracy of the extension action. When the four groups of top heads 55 are tightly contacted with the inner wall of the pipeline, the center ring 51 is stably positioned in the interior of the pipeline, and in this process, the center ring 51 supports the water inlet ring 1 through the connecting rod 2, thereby enhancing the stability of the water inlet ring 1 and the expansion outer ring 3 when resisting the water flow impact, so that the water inlet ring 1 is not easy to displace. Finally, the valve 9 is closed to cut off the water flow, and the temporary plugging operation of the pipeline is completed. The whole process is simple and efficient, and guarantees the smooth development of the municipal water supply and drainage pipeline maintenance and construction work.

[0052] The above only describes the preferred embodiments of the present application, and is not used to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A temporary blocking device for a municipal water supply and drainage pipe, comprising a water inlet ring (1), characterized in that: An expansion outer ring (3) is provided on the outside of the water entry ring (1), and an anti-slip outer layer (4) is provided on the outer surface of the expansion outer ring (3); A conical guide tube (7) is installed behind the water inlet ring (1), a guide tube (8) is fixedly installed at the rear end of the guide tube (7), and a valve (9) is fixedly connected to the rear end of the guide tube (8); An inner support assembly (5) for positioning the water entry ring (1) is provided on the rear side of the guide tube (7).

2. A temporary blocking device for municipal water supply and drainage pipes according to claim 1, characterized in that: The inner support assembly (5) includes a center ring (51), a group of guide cylinders (52) are respectively provided on the outer sides of the center ring (51), an extension screw cylinder (54) is provided in the guide cylinder (52), a propulsion screw (57) is connected to the extension screw cylinder (54) through a thread, and a head (55) is installed at the front end of the extension screw cylinder (54).

3. A temporary blocking device for municipal water supply and drainage pipes according to claim 2, characterized in that: The two sides of the guide cylinder (52) are fixedly connected to the center ring (51) through side support rods (53), and the two sides of the guide cylinder (52) are respectively provided with sliding grooves. The two sides of the extension screw cylinder (54) are respectively installed with guide slide bars (510), and the extension screw cylinder (54) is slidably connected to the sliding grooves through the guide slide bars (510).

4. A temporary blocking device for municipal water supply and drainage pipes according to claim 3, characterized in that: A group of inner frames (56) are respectively provided around the interior of the center ring (51), a bearing (58) is installed on the rear side of the inner frame (56), the front side of the inner frame (56) is fixedly connected to the inner wall of the center ring (51), the rear side of the advancing screw (57) extends into the inner frame (56) and is fixedly connected to the inner side of the bearing (58), and the rear end of the advancing screw (57) is fixedly connected to a hexagonal screw head (59).

5. A temporary blocking device for municipal water supply and drainage pipes according to claim 4, characterized in that: A plurality of connecting rods (2) are fixedly mounted behind the water entry ring (1), and the plurality of connecting rods (2) are distributed in a ring shape, and the rear ends of the connecting rods (2) are fixedly connected to the center ring (51).

6. A temporary blocking device for municipal water supply and drainage pipes according to claim 2, characterized in that: An air pipe (11) is installed behind the water entry ring (1), the front end of the air pipe (11) is fixedly connected to the expansion outer ring (3), and the rear end of the air pipe (11) is installed with an air valve (10).

7. A temporary blocking device for municipal water supply and drainage pipes according to claim 6, characterized in that: A fixing rod (6) is fixedly mounted on one side of the center ring (51), one end of the fixing rod (6) is fixedly connected to the air pipe (11), and the outer side of the outlet pipe (8) is fixedly connected to the inner wall of the center ring (51) via four positioning rods (12).

8. A temporary blocking device for municipal water supply and drainage pipes according to claim 1, characterized in that: The anti-slip outer layer (4) is made of rubber material, the expansion outer ring (3) is made of a nylon airbag, and the inner wall of the expansion outer ring (3) and the outer wall of the water entry ring (1) are glued and fixed by means of an adhesive.

Images