A drainage device for municipal water supply and drainage pipeline construction

Abstract

The present invention provides a drainage device for municipal water supply and drainage pipeline construction, which belongs to the field of municipal drainage technology, and includes a pair of sealing rings and a plugging head arranged on the left and right, the plugging head is used to plug the pipeline to be connected against its connection port; a drainage cylinder is coaxially connected between the two sealing rings, and the two sealing rings can respectively coaxially sleeve and squeeze contact with two sections of the pipeline to be connected, so that the plugging head, the pipeline to be connected, and the drainage cylinder form a cylindrical drainage cavity; an operation hole is provided on the top of the drainage cylinder, and the operation hole provides an operation space for entering the drainage cavity when performing the pipeline connection operation; and also includes a drainage pipe with a bottom end inserted into the drainage cylinder, and the drainage pipe is connected to a pump to discharge the water in the drainage cavity. The present invention can drain water conveniently and efficiently, and avoid affecting the progress of pipeline construction work.

Description

Technical Field

[0001] The invention belongs to the technical field of municipal drainage, and more specifically to a drainage device for municipal water supply and drainage pipeline construction. Background Art

[0002] During the construction of municipal water supply and drainage pipelines, due to the complexity of underground pipelines and the influence of the rainy season, water accumulation often occurs at the construction site, especially when the pipelines themselves have been laid in the ditch and these pipelines can only be connected in series. Because of the interruption of construction due to rain, the rain causes these pipelines to be soaked in the ditch. To complete the continued installation of the pipeline, you can only wait for the rain to recede, or use a pump to drain the water in the ditch. However, this takes a long time and a large amount of water is drained. Where the rainwater is drained is a difficult problem. Secondly, if it rains continuously, it is impossible to drain the rainwater in the ditch. You can only wait for the rain to stop and then drain it. This not only increases the difficulty of construction and prolongs the construction period, but may also lead to quality risks of the laid pipelines, such as corrosion of pipes, poor sealing of interfaces, etc., especially when the connection sleeve is used for bonding with glue, the impact is the greatest, and it is almost impossible to complete the connection of the pipeline.

[0003] Therefore, existing drainage methods mostly rely on traditional submersible pumps or artificial drainage, which have problems such as low efficiency, high energy consumption, and poor applicability. Especially, it is inconvenient to operate in a small space, which seriously affects the construction progress and on-site safety management. Summary of the invention

[0004] In view of the technical status quo mentioned in the background technology, in order to overcome the corresponding defects in the prior art, the present invention particularly discloses a drainage device for municipal water supply and drainage pipeline construction, which can better solve the problem of inconvenience in drainage in rainy season mentioned in the background technology, which seriously affects the construction progress.

[0005] To overcome the defects of the prior art, those skilled in the art provide the following technical solutions:

[0006] A drainage device for municipal water supply and drainage pipeline construction, comprising a pair of sealing rings and a plugging head arranged on the left and right, the plugging head being used to plug the pipeline to be connected near its connection port; a drainage cylinder is coaxially connected between the two sealing rings, and the two sealing rings can respectively be coaxially sleeved and squeezed into contact with two sections of the pipeline to be connected, so that the plugging head, the pipeline to be connected, and the drainage cylinder form a cylindrical drainage cavity; an operating hole is provided on the top of the drainage cylinder, and the operating hole provides an operating space for entering the drainage cavity when performing the pipeline connection operation; and also includes a drainage pipe with a bottom end inserted into the drainage cylinder, and the drainage pipe is connected to a pump to discharge the water in the drainage cavity.

[0007] Furthermore, the sealing ring is a circular elastic airbag, and the elastic airbag is connected to a compressed air circuit connected to a pressure gauge.

[0008] Furthermore, the compressed air circuit is connected to the pump via a multi-directional regulating valve, and the drain pipe is also connected to the pump.

[0009] Furthermore, filters are provided on the compressed air circuit and the drainage pipe.

[0010] Furthermore, the elastic airbag includes a plurality of annular sac bodies coaxially plugged into each other in sequence, and an air intake valve is installed on the side wall of the end of each annular sac body, and the air intake valve is detachably connected to the compressed air circuit.

[0011] Furthermore, the operation hole is covered with a closed door panel, and a handle is fixed on the closed door panel.

[0012] Furthermore, the operating hole is arranged in a vertically arranged water-blocking cylinder, and the bottom end of the water-blocking cylinder is detachably fixed to the drainage cylinder.

[0013] Furthermore, the plugging head is a cylindrical plug-shaped elastic inflatable structure, which is connected to the compressed air circuit through a control valve. When the plugging head expands, it can completely block the pipe hole of the pipeline to be connected.

[0014] Furthermore, at the ends of the two sealing rings facing away from each other, each is provided with a centering component, the centering component includes an annular mounting ring, a stud installed along the radial thread of the mounting ring, and a flat gear plate, wherein the interior of the mounting ring is for the pipe to be connected to pass through, a driven gear is fixed to the end of the stud located outside the mounting ring, the driven gear is meshed with the flat gear plate, and an inner gear ring is provided in the end surface of the driven gear plate away from the stud, the inner gear ring is meshed with a driving gear, the two driving gears share a gear shaft and when the gear shaft rotates, all the studs move synchronously toward the center of the mounting ring to clamp and adjust the two pipes to be connected to a coaxial position.

[0015] Furthermore, the two mounting rings are coaxially fixed as a whole through a jumper arm, and the jumper arm is composed of a threaded sleeve and connecting columns with threads at both ends thereof. When the threaded sleeve is rotated, the two connecting columns move closer to or away from each other, and a bearing is suspended and fixedly installed below the jumper arm, and the gear shaft is rotatably installed in the bearing, and a mounting support foot for placing the jumper arm is fixed above it; the gear shaft includes side shaft sections located on both sides and a middle shaft section located in the middle, and a connecting plate is fixed at one end of the side shaft sections facing each other, and the connecting plate is coaxially located in the mounting cavity corresponding to the end of the middle shaft section, and a temporary integrated structure is formed between the connecting plate and the mounting cavity through axial elastic extrusion contact of a disc spring, and an adjusting bolt is installed on the outer wall of the mounting cavity, which extends into the mounting cavity in a threaded manner and is in extrusion contact with the end of the connecting plate. After the studs on both sides respectively support their corresponding pipes to be connected, each side shaft section will rotate relative to the middle shaft section and separate from the integrated structure.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the drainage device for municipal water supply and drainage pipeline construction in the present invention mainly adopts a local drainage construction method, and in the water-accumulated ditch of the buried pipeline, targeted rapid drainage is carried out for the area of ​​the pipeline connection end accessories, and when installing the pipeline in the excavated ditch, it is not necessary to completely drain the rainwater accumulated in the ditch before installation, as in traditional construction, or in other words, during construction, the pipeline has been installed in the ditch first, and when all the pipelines to be connected are to be connected in series, water accumulates due to rain, making it impossible to use connecting sleeves to connect the corresponding pipelines, so it is necessary to wait for the rainwater to recede or actively use a water pump to directly drain it before the pipeline installation operation can be carried out.

[0017] The principle of the drainage device used in the construction of municipal water supply and drainage pipelines is very simple, that is, around the connection ends of the two pipes to be connected, a drainage cylinder and a sealing ring are installed on the two pipes, and the pipe opening is blocked with a plug as needed, so that the area between the two pipes is temporarily separated from the ditch area, and then a pump is used to actively drain water, and then the water in the construction area where the pipes are installed and connected is drained, so as to facilitate the pipe connection operation. Moreover, because it adopts the clamping seal of the inflatable elastic airbag, it is not only easy to quickly and reliably seal each pipe to form an independent drainage cavity, but also has a certain flexibility, which can be well connected and installed with the two pipes to be connected to form a drainage cavity, and then quickly drain water.

[0018] Other functions and features of the present invention will be specifically introduced in the subsequent embodiments to provide a full understanding of the concept of the present invention and thus to be specifically applied to production practice. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A simplified structural diagram of an embodiment of the present invention;

[0020] Figure 2 It is a partial structural diagram of the drainage tube when a water barrier tube is provided;

[0021] Figure 3 A specific implementation structure diagram of a sealing ring;

[0022] Figure 4 A specific implementation structure diagram of the centering component;

[0023] Figure 5 for Figure 4 An enlarged view of another matching structure between the driving gear and the inner gear ring.

[0024] Among them, the pipe to be connected 1, the sealing ring 2, the annular capsule 201, the drain cylinder 3, the drain pipe 4, the compressed air circuit 5, the multi-directional regulating valve 6, the pump 7, the closing plate 8, the handle 9, the mounting ring 10, the stud 11, the driven gear 12, the flat gear plate 13, the driving gear 14, the bearing 15, the gear shaft 16, the side shaft section 1601, the middle shaft section 1602, the installation cavity 1603, the disc spring 1604, the adjusting bolt 1605, the jumper arm 17, the connecting column 1701, the threaded sleeve 1702, the mounting foot 18, the connecting sleeve 19, the water-blocking cylinder 20, and the gear ring 21. DETAILED DESCRIPTION

[0025] Based on several drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention can be introduced more clearly and completely with reference to the following text description. However, it should be understood that the embodiments mentioned herein are only one or several specific methods of the present invention, and are not all implementation structures or method steps. As shown in the figure,

[0026] As one of the embodiments of the present invention, a drainage device for municipal water supply and drainage pipeline construction is specifically introduced, such as Figure 1 As shown, it mainly includes a pair of sealing rings 2 arranged on the left and right and a plugging head (not shown in the figure). The plugging head is used to plug the connecting port of the pipeline 1 to be connected. Specifically, it can be a cylindrical elastic inflatable structure. After inflation, it quickly contacts the inner wall of the pipeline seamlessly, seals the inside of the pipeline, and then prevents the water in the remaining pipe sections of the two sections of the pipeline 1 to be connected from flowing into the connecting end. In specific practice, the plugging head is connected to the compressed air circuit 5 through a control valve to control the expansion degree and achieve a better sealing effect, so that when the plugging head expands, it can completely block the pipe hole of the pipeline 1 to be connected. At the same time, in this embodiment, Figure 1-2, a drainage cylinder 3 is coaxially connected between the two sealing rings 2 used, and the two sealing rings 2 can respectively coaxially sleeve and squeeze contact with the two sections of the pipe 1 to be connected, that is, in a way of annularly hugging the pipe, to achieve a sealed connection between the sealing ring 2 and the pipe, so that the plugging head, the pipe 1 to be connected, and the drainage cylinder 3 can form a drainage cavity roughly similar to a cylinder, so that the water in the drainage cavity will not be continuously infiltrated by rainwater accumulated in the buried pipe trench to form continuous water accumulation after being pumped away, affecting the connection and installation of the two sections of the pipe through the connecting sleeve 19 and other forms. For the convenience of operation, an operating hole is provided on the top of the drainage cylinder 3. This operating hole provides an operating space for entering the drainage cavity when performing pipe connection operations. For example, hands or other tools can be inserted into the operating hole for operation; during specific production, the operating hole is covered and installed with a closed door panel, and a handle 9 is fixed on the closed door panel to open and close the operating hole; and in order to be able to connect and install pipes in deeper ditches, such as Figure 2 As shown, the operation hole can be set in a vertically arranged water-blocking cylinder 20, and the bottom end of the water-blocking cylinder 20 is detachably fixed to the drainage cylinder 3 to form a deep well structure so that the installation operation can be carried out in a watertight manner. In addition, the present embodiment also includes a drainage pipe 4 with its bottom end inserted into the drainage cylinder 3. The drainage pipe 4 is connected to the pump 7 to discharge the water in the drainage cavity, so that the area between the two sections of the pipe is isolated from the water, which is convenient for the connection operation.

[0027] As one of the specific implementation structures, such as Figure 1 As shown, the sealing ring 2 is a circular elastic airbag. After the elastic airbag is connected to the compressed air source, it is pressurized and expanded to be in close contact with the pipeline. When it is made, the elastic airbag is connected to the compressed air circuit 5 connected to the pressure gauge. In practice, the compressed air circuit 5 can also be connected to the pump 7 through a multi-directional regulating valve 6, and the drain pipe 4 is also connected to the pump 7. When the pump 7 rotates, the multi-directional regulating valve 6 is switched, which can not only drain water, but also inflate and pressurize the sealing ring 2, and cleverly achieve two functions. Moreover, in use, the sealing ring 2 is first inflated to prevent the residual rainwater brought in by the pump 7 from entering the sealing ring 2. Moreover, in this embodiment, in terms of the operating sequence, the sealing ring 2 should be inflated first, and the water can be discharged from the drainage cavity after the above-mentioned drainage cavity is formed. In order to reduce the interference of impurities and garbage, the compressed air circuit 5, especially the drainage pipe 4, is provided with at least one filter.

[0028] In order to improve the versatility, Figure 2 As shown, the elastic airbag includes a plurality of annular sac bodies 201 which are coaxially plugged into each other in sequence. An air intake valve is installed on the side wall of the end of each annular sac body 201. The air intake valve is detachably connected to the compressed air circuit 5 so that different layers of annular sac bodies 201 can be arranged according to different pipe diameters to achieve a clamp-type seal for pipes of a series of diameter specifications.

[0029] After the water in the drainage cavity is drained, the pipe connection and installation can be carried out. In this embodiment, a centering component can be provided on each of the pipe sections outside the ends of the two sealing rings 2 facing away from each other. For example, the left side of the left sealing ring 2 in 1 is also provided with the above-mentioned centering component. In this embodiment, the structure and installation method of the two centering components are as follows: Figure 4 As shown, each centering component includes an annular mounting ring 10, a stud 11 installed along the radial thread of the mounting ring 10, and a flat gear plate 13. Specifically, the internal through hole of the mounting ring 10 is for the pipe 1 to be connected to pass through, and the end of the stud 11 located outside the mounting ring 10 is fixed with a driven gear 12, and the driven gear 12 is coaxially mounted on the end face of the mounting ring 10 opposite to it, and the driven gear 12 is kept in mesh with the flat gear plate 13. Then, when the flat gear plate 13 rotates, all the studs 11 will move synchronously along the radial direction of the mounting ring 10, and when they are close to each other, they can squeeze the pipe 1 to be connected, so that the pipe 1 to be connected is in a coaxial position with the mounting ring 10, and automatic centering is achieved. More specifically, the driven gear 12 is provided with an inner gear ring 21 in the end face of the end away from the stud 11, and the inner gear ring 21 can be assembled, or a circle of gear teeth can be directly machined in the end face of the flat gear plate 13 away from the gear teeth. The inner gear ring 21 is meshed with a driving gear 14, and the two driving gears 14 share a gear shaft 16, so that when the gear shaft 16 rotates, the two planar gear plates 13 rotate, so that all the studs 11 of each rotate synchronously toward the center of the mounting ring 10, so that the two pipes to be connected 1 can be clamped and adjusted to be in a coaxial position, so that the connecting sleeve 19 can be directly passed between the two pipes to be connected 1, first inserted into one end to the left, and then translated to the right and inserted into the corresponding connecting end of the other pipe, so that the connection and installation of the two pipes to be connected 1 can be easily realized underwater.

[0030] However, in practice, it is often encountered that the diameters of the two pipes 1 to be connected are inconsistent, or because the positions of the studs 11 are different in the initial state of each centering component, after one centering component has completed centering the pipe, the other has not been fully clamped and centered, which will cause the gear shaft 16 to be unable to continue to rotate and the centering fails. Therefore, in this embodiment, a special structure is specially introduced to solve the above problem well.

[0031] When installing and making, Figure 4The two mounting rings 10 are coaxially fixed as a whole through a bridging arm 17. The bridging arm 17 is composed of a threaded sleeve 1702 and connecting columns 1701 with threads at both ends thereof, that is, the corresponding connecting columns 1701 are respectively threadedly inserted at both ends of the threaded sleeve 1702. When the threaded sleeve 1702 is rotated, the two connecting columns 1701 move closer to or away from each other, and the telescopic movement of the bridging arm 17 can be realized. After the water in the drainage cavity is drained, the pipe that has been sleeved with the connecting sleeve 19 is axially translated and moved closer to another pipe, so as to realize the socket connection between the other pipe and the connecting sleeve 19, thereby quickly and accurately completing the pipe connection installation. Based on the design of the jumper arm 17, specifically, a bearing 15 is fixedly installed under the jumper arm 17, and a gear shaft 16 is rotatably installed in the bearing 15. A mounting foot 18 for placing the jumper arm 17 is fixed above it. The mounting foot 18 is a load-bearing member for supporting and installing the drainage device, and can be adaptively designed, for example, in a U-shape or a "X" shape, so as to span the two sides of the ditch where the pipe is installed and fixedly installed. Considering that the length of the jumper arm 17 will be shortened later, in the above embodiment, if Figure 5 The tooth thickness of one of the driving gear 14 and the inner gear ring 21 must be made large enough. For example, the driving gear 14 is made into a structure with teeth on the circumference of a cylindrical shaft, similar to the structure of a spline shaft, or the thickness of the inner gear ring is processed to be Figure 5 The thicker value shown, so that when the length of the bridging arm 17 changes, the driving gear 14 and the inner ring gear 21 are always in meshing, and the inner ring gear 21 can slide axially relative to the driving gear 14, and correspondingly, the bearing 15 and the above-mentioned gear shaft 16 also need to slide axially.

[0032] In particular, in response to the problem of centering failure mentioned above, based on the above structure, during processing, the gear shaft can be made to include three components, namely, side shaft sections located on both sides and a central shaft section located in the middle. A connecting disk is fixed at the end of the side shaft sections facing each other. The connecting disk is coaxially located in the mounting cavity at the corresponding end of the central shaft section. This mounting cavity is also preferably a cylindrical cavity. The connecting disk and the mounting cavity can be axially elastically squeezed and contacted by a disc spring, so that the above-mentioned gear shaft here becomes a temporary one-piece rod-like structure. At the same time, an adjusting bolt is specially installed on the outer side wall of the mounting cavity, which is threadedly inserted into the mounting cavity and squeezed and contacted with the end of the connecting disk. The screw-in depth of the adjusting bolt can adjust the degree of this elastic squeezing and friction contact, and then determine under what torque, the gear shaft will become the above-mentioned three components that can move relative to each other. When in use, when the studs on both sides respectively support their corresponding pipes to be connected, the corresponding side shaft sections can no longer rotate, and the side shaft sections will rotate relative to the middle shaft section, thereby separating from the integrated structure and forming a slipping connection, thereby fully completing the coaxial installation of the pipes to be connected.

[0033] The present invention is not limited to the field involved in this implementation case, and some well-known structures or principles are not further described. However, ordinary technicians in the relevant field can theoretically know all the well-known technologies in this technical field before the application date or priority date, can fully master all the existing technologies in this technical field, and have the means and ability to apply these existing technologies for actual design and application. Under the technical enlightenment given by this application, technicians can improve and implement the present invention more comprehensively in combination with their own abilities. In addition, it should be pointed out that although the text and graphics of the above embodiments have shown the specific implementation occasions of the present invention, for ordinary technicians in this field, it is entirely possible to carry out a variety of obvious expansions and extensions on these embodiments without departing from the design concept of the present invention to form different embodiments, but this does not affect the scope of protection of the present invention, which is covered and embodied by the technical features of the claims and equivalent technical features.

Claims

1. A drainage device for municipal water supply and drainage pipeline construction, characterized in that: The invention comprises a pair of sealing rings (2) arranged on the left and right and a plugging head, wherein the plugging head is used to plug the connection port of the pipe to be connected (1); a drainage cylinder (3) is coaxially connected between the two sealing rings (2), and the two sealing rings (2) can respectively be coaxially sleeved and pressed into contact with the two sections of the pipe to be connected (1), so that the plugging head, the pipe to be connected (1) and the drainage cylinder (3) form a cylindrical drainage cavity; an operation hole is provided at the top of the drainage cylinder (3), and the operation hole provides an operation space for entering the drainage cavity when performing a pipe connection operation; and the invention also comprises a drainage pipe (4) whose bottom end is inserted into the drainage cylinder (3), and the drainage pipe (4) is connected to a pump (7) to discharge water in the drainage cavity; A centering component is provided at each end of the two sealing rings (2) facing away from each other. The centering component comprises an annular mounting ring (10), a stud (11) mounted along the mounting ring (10) in a radially threaded manner, and a flat gear plate (13). The interior of the mounting ring (10) allows the pipe (1) to be connected to pass through. A driven gear (12) is fixed to the end of the stud (11) located outside the mounting ring (10). The driven gear (12) meshes with the flat gear plate (13). An inner gear ring (21) is provided in the end surface of the driven gear (12) at the end facing away from the stud (11). The inner gear ring (21) meshes with a driving gear (14). The two driving gears (14) share a gear shaft (16). When the gear shaft (16) rotates, all the studs (11) move synchronously toward the center of the mounting ring (10) to clamp and adjust the two pipes (1) to be connected to a coaxial position.

2. A drainage device for municipal water supply and drainage pipeline construction according to claim 1, characterized in that: The sealing ring (2) is a circular elastic airbag, and the elastic airbag is connected to a compressed air circuit (5) connected to a pressure gauge.

3. A drainage device for municipal water supply and drainage pipeline construction according to claim 2, characterized in that: The compressed air circuit (5) is connected to the pump (7) via a multi-directional regulating valve (6), and the drainage pipe (4) is also connected to the pump (7).

4. A drainage device for municipal water supply and drainage pipeline construction according to claim 3, characterized in that: Filters are provided on the compressed air circuit (5) and the drainage pipe (4).

5. A drainage device for municipal water supply and drainage pipeline construction according to claim 2, characterized in that: The elastic airbag comprises a plurality of annular sac bodies (201) coaxially plugged into one another in sequence, and an air intake valve is installed on the side wall of the end of each annular sac body (201), and the air intake valve is detachably connected to the compressed air circuit (5).

6. A drainage device for municipal water supply and drainage pipeline construction according to claim 1, characterized in that: The operation hole is covered with a closed door panel, and a handle (9) is fixed on the closed door panel.

7. A drainage device for municipal water supply and drainage pipeline construction according to claim 1, characterized in that: The operation hole is arranged in a vertically arranged water-isolating cylinder (20), and the bottom end of the water-isolating cylinder (20) is detachably fixed to the drainage cylinder (3).

8. A drainage device for municipal water supply and drainage pipeline construction according to claim 2, characterized in that: The plugging head is a cylindrical plug-shaped elastic inflatable structure, which is connected to the compressed air circuit (5) via a control valve. When the plugging head expands, it can completely block the pipe hole of the pipeline (1) to be connected.

9. A drainage device for municipal water supply and drainage pipeline construction according to claim 1, characterized in that: The two mounting rings (10) are coaxially fixed as one body through a bridging arm (17). The bridging arm (17) is composed of a threaded sleeve (1702) and connecting columns (1701) threadedly matched at both ends thereof. When the threaded sleeve (1702) is rotated, the two connecting columns (1701) move closer to or farther from each other. A bearing (15) is fixedly mounted under the bridging arm (17). The gear shaft (16) is rotatably and axially slidably mounted in the bearing (15). A mounting foot (18) for placing the bridging arm (17) is fixed above the gear shaft. When the threaded sleeve (1702) is rotated, the driving gear (14) and the inner gear ring (21) can slide relative to each other in parallel to the axial direction, but never disengage the meshing transmission. The gear shaft (16) includes side shaft sections (1601) located on both sides and a middle shaft section (1602) located in the middle. A connecting plate is fixed at one end of the side shaft sections (1601) facing each other. The connecting plate is coaxially located in the installation cavity (1603) at the corresponding end of the middle shaft section (1602), and is axially elastically squeezed and contacted with the installation cavity (1603) through a disc spring (1604) to form a temporary integrated structure. The outer wall of the installation cavity (1603) is installed with an adjusting bolt (1605) that extends into the installation cavity (1603) and is squeezed and contacted with the end of the connecting plate. After the studs (11) on both sides respectively support their corresponding pipes (1) to be connected, each side shaft section (1601) will rotate relative to the middle shaft section (1602) and separate from the integrated structure.

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