Closed water test sewage pipeline sealing device

Abstract

The utility model discloses a sewage pipeline sealing device for a closed water test, which comprises a vertically arranged operating rod, the middle lower part of the operating rod is provided with an external thread, the part with the external thread is called as a thread part, the thread part comprises an upper thread part and a lower thread part, and the thread turning directions of the upper thread part and the lower thread part are opposite; the upper thread part is in threaded connection with an upper thread seat, and the lower thread part is in threaded connection with a lower thread seat; a left upper hinge rod and a right upper hinge rod are hinged to the upper threaded seat leftwards and rightwards respectively, a left lower hinge rod and a right lower hinge rod are hinged to the lower threaded seat leftwards and rightwards respectively, the left upper hinge rod and the left lower hinge rod are hinged to the same left plug leftwards respectively, and the right upper hinge rod and the right lower hinge rod are hinged to the same right plug rightwards respectively. The utility model has a simple structure.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline engineering, in particular to a sewage pipeline water-tightness test. Background Art

[0002] Sewage pipes are used to collect and transport sewage, and also provide support for reducing and preventing flood disasters; sewage pipes can also facilitate resource recycling and reuse, and are indispensable facilities in modern cities.

[0003] During long-term use, local leakage may occur in sewage pipes, polluting groundwater and soil, and endangering the environment and public health. Therefore, it is necessary to conduct a sewage pipe closed water test after the construction of the sewage pipe and during long-term use, especially after the completion of the construction of a new sewage pipe, after the pipe is repaired or renovated, during the project acceptance stage, and when leakage is suspected during use.

[0004] Municipal sewage pipes are very long, and usually an inspection well is set up every tens of meters (at most hundreds of meters). The sewage pipe water-tightness test is usually carried out on the sewage pipe between two inspection wells. During the water-tightness test, the sewage pipe needs to be blocked at both ends of the pipe section (i.e., at the two inspection wells), so as to form a closed space inside the tested pipe section, and then the water filling test is carried out on this pipe section.

[0005] The prior art technologies for blocking sewage pipes at inspection wells include:

[0006] 1. Rubber airbags: When used, they need to be inflated or filled with water to expand them and seal the opening of the sewage pipe. Since they need to be inflated or filled with water, an air pump or water pump is required, and the sealing efficiency is also low.

[0007] 2. Cement plugging: Use quick-drying cement or similar materials to plug the openings of sewage pipes. The plugging efficiency is low and it consumes materials.

[0008] 3. The folding blocking plate is more troublesome to install.

[0009] 4. Customized plugging devices are inconvenient to manufacture, have low efficiency, and are not suitable for sewage pipes of different diameters. Utility Model Content

[0010] The utility model aims to provide a sewage pipe sealing device for a closed water test, which has high efficiency in blocking the sewage pipe and has no material consumption.

[0011] To achieve the above-mentioned purpose, the utility model of the closed water test sewage pipe closing device comprises a vertically arranged operating rod, the middle and lower part of the operating rod has an external thread, the part with the external thread is called a threaded part, the threaded part comprises an upper threaded part and a lower threaded part, and the threaded direction of the upper threaded part and the lower threaded part are opposite; the upper threaded part is threadedly connected to an upper threaded seat, and the lower threaded part is threadedly connected to a lower threaded seat;

[0012] The upper threaded seat is hinged to the left and right with an upper left hinged rod and an upper right hinged rod respectively, and the lower threaded seat is hinged to the left and right with a lower left hinged rod and a lower right hinged rod respectively.

[0013] The upper left hinged rod and the lower left hinged rod are respectively hinged to the left with the same left plug, and the upper right hinged rod and the lower right hinged rod are respectively hinged to the right with the same right plug. The left plug is used to close the sewage pipe on the left side of the inspection well, and the right plug is used to close the sewage pipe on the right side of the inspection well.

[0014] The top of the operating rod is horizontally connected with a crank rod as a handle; the top of the operating rod is sleeved with a shaft sleeve, which serves as a gripping part for users to hold conveniently.

[0015] The left plug and the right plug are symmetrical in structure, and both include a vertically arranged base plate;

[0016] The upper left hinged rod, the upper right hinged rod, the lower left hinged rod and the lower right hinged rod are collectively referred to as hinged rods, with the direction pointing to the operating rod as the inner direction, and a hinge seat is provided on the inner surface of the base plate, and the hinge seat is used to be hinged with the hinge rod;

[0017] A conical plugging block with a small outside and a large inside is fixedly connected to the outer surface of the base plate. The conical plugging block is made of rubber or silicone. The inner end diameter of the conical plugging block is larger than the diameter of the sewage pipe.

[0018] The utility model has the following advantages:

[0019] The utility model has a simple structure and is easy to use. When it is necessary to close the sewage pipe in the inspection well, there is no need to pull the wires, install the air pump or the water pump, and perform cement sealing construction (no material consumption). It is only necessary to clamp the left and right plugs at the left and right sewage pipe openings in the inspection well, and then rotate the operating lever to close the left and right sewage pipe openings in the inspection well.

[0020] Specifically, when the operating rod rotates, the opposite rotation directions of the threads of the upper threaded part and the lower threaded part cause the upper threaded seat and the lower threaded seat to approach each other (if they rotate in the opposite direction, the upper threaded seat and the lower threaded seat will move away from each other up and down), thereby forcing each articulated rod to approach a horizontal state, forcing the left plug to move to the left and the right plug to move to the right, thereby tightly pressing and closing the sewage pipe.

[0021] When in use, the user holds the shaft sleeve with one hand and rotates the handle with the other hand to rotate the operating rod. The handle and the shaft sleeve facilitate the user to manually rotate the operating rod.

[0022] Both the left plug and the right plug are provided with a conical plug. On the one hand, it is convenient to insert the conical plug part into the opening of the sewage pipe exposed to the inspection well, so as to constrain the upper threaded seat and the lower threaded seat from rotating when the operating rod is rotated, thereby ensuring that the upper threaded seat and the lower threaded seat can approach or move away from each other. On the other hand, the diameter of the conical plug can be set larger, so that the utility model is suitable for blocking any sewage pipe with a diameter smaller than the maximum diameter (inner end diameter) of the conical plug, and there is no need to customize different blocking devices for sewage pipes with different diameters.

[0023] The utility model is very convenient to install and disassemble, can be used repeatedly to close the sewage pipe openings at different inspection wells, and has very low use cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the utility model. Figure 1 The dotted line position shown by the middle number 2 is the upper and lower dividing lines between the upper threaded part and the lower threaded part. Figure 1 The direction indicated by the arrow is the movement direction of the arrow when the left plug and the right plug press the sewage pipe opening to the left and right sides. DETAILED DESCRIPTION

[0025] like Figure 1 As shown, the closed water test sewage pipe closing device of the utility model includes a vertically arranged operating rod 1, the middle and lower parts of the operating rod 1 have external threads, and the part with external threads is called a threaded portion, the threaded portion includes an upper threaded portion 3 and a lower threaded portion 4, and the thread rotation directions of the upper threaded portion 3 and the lower threaded portion 4 are opposite; the dotted line position shown by the number 2 is the upper and lower dividing line between the upper threaded portion 3 and the lower threaded portion 4.

[0026] The upper threaded portion 3 is threadedly connected to an upper threaded seat 5, and the lower threaded portion 4 is threadedly connected to a lower threaded seat 6; the upper threaded seat 5 is hinged to the left and right with an upper left hinged rod 7 and an upper right hinged rod 8, respectively, and the lower threaded seat 6 is hinged to the left and right with a lower left hinged rod 9 and a lower right hinged rod 10, respectively.

[0027] The upper left hinged rod 7 and the lower left hinged rod 9 are respectively hinged to the left with the same left plug, and the upper right hinged rod 8 and the lower right hinged rod 10 are respectively hinged to the right with the same right plug. The left plug is used to close the sewage pipe on the left side of the inspection well, and the right plug is used to close the sewage pipe on the right side of the inspection well.

[0028] The utility model has a simple structure and is easy to use. When it is necessary to close the sewage pipe in the inspection well, there is no need to pull the wires, install the air pump or the water pump, and perform cement sealing construction. It is only necessary to clamp the left plug and the right plug at the left and right sewage pipe openings of the inspection well, and then rotate the operating lever 1 to close the left and right sewage pipe openings in the inspection well.

[0029] Specifically, when the operating rod 1 rotates, the opposite rotation directions of the threads of the upper threaded portion 3 and the lower threaded portion 4 cause the upper threaded seat 5 and the lower threaded seat 6 to approach each other (if rotated in the opposite direction, the upper threaded seat 5 and the lower threaded seat 6 will move away from each other up and down), thereby forcing each articulated rod to approach a horizontal state, forcing the left plug to move to the left and the right plug to move to the right, thereby tightly pressing and closing the sewage pipe.

[0030] A turning rod serving as a handle 11 is horizontally connected to the top of the operating rod 1 ; a shaft sleeve 12 is sleeved on the top of the operating rod 1 , and the shaft sleeve 12 serves as a gripping portion for the user to hold conveniently.

[0031] When in use, the user holds the sleeve 12 with one hand and rotates the handle 11 with the other hand to rotate the operating rod 1. The handle 11 and the sleeve 12 facilitate the user to manually rotate the operating rod 1.

[0032] The structures of the left plug and the right plug are bilaterally symmetrical, and both include a base plate 13 arranged vertically; the upper left hinged rod 7, the upper right hinged rod 8, the lower left hinged rod 9 and the lower right hinged rod 10 are collectively referred to as hinged rods, with the direction pointing to the operating rod 1 as the inner direction, and an hinge seat 14 is provided on the inner surface of the base plate 13, and the hinge seat 14 is used to be hinged with the hinge rod;

[0033] A conical block 15 with a small outside and a large inside is fixedly connected to the outer surface of the base plate 13 . The conical block 15 is made of rubber or silicone. The inner end diameter of the conical block 15 is larger than the diameter of the sewage pipe.

[0034] Both the left plug and the right plug are provided with a conical plug 15. On the one hand, it is convenient to insert the conical plug 15 partially into the opening of the sewage pipe exposed to the inspection well, so as to constrain the upper threaded seat 5 and the lower threaded seat 6 from rotating when the operating rod 1 rotates, thereby ensuring that the upper threaded seat 5 and the lower threaded seat 6 can approach or move away from each other. On the other hand, the diameter of the conical plug 15 can be set larger, so that the utility model is suitable for blocking any sewage pipe with a diameter smaller than the maximum diameter (inner end diameter) of the conical plug 15, and there is no need to customize different blocking devices for sewage pipes with different diameters.

[0035] The steps of using the utility model to conduct a closed water test are:

[0036] 1. Preparation: Check whether there is any debris inside the pipeline to ensure that the inside of the pipeline is clean. Then install the utility model at both ends of the pipeline to ensure that a closed space is formed inside the pipeline.

[0037] 2. Filling: Slowly fill the pipe with water through the preset water inlet until the water level reaches the specified height. Usually, the water level needs to reach 1 / 3 to 1 / 2 of the pipe diameter.

[0038] 3. Observation: During and after the water filling process, observe the sealing condition of the pipeline. Check whether there is water leakage from the pipeline joints, the connection between the pipeline and the inspection well, and the connection between the pipeline and the ground.

[0039] 4. Detection: After filling with water, keep it for a certain period of time (usually 24 hours) to observe whether the water level drops significantly. If the water level drops, it means that there is a leak in the pipeline.

[0040] 5. Record and evaluate: record the water level changes during the experiment and evaluate the sealing performance of the pipeline. If the water level drops beyond the specified standard, it means that the pipeline sealing performance is unqualified and needs to be repaired.

[0041] 6. Repair: If leakage is found in the pipeline, the leaking part needs to be repaired. After the repair, the water-tightness test is carried out again until the pipeline sealing performance meets the standard.

[0042] The water-tightness test is an important part of ensuring the quality of sewage pipe construction and safe use, and is also of great significance for protecting the environment and water resources.

[0043] The operation of the utility model in the closed water test is concentrated in step 1. In step 1, the operation of installing the utility model at both ends of the pipeline is specifically:

[0044] One utility model is placed in the inspection wells at both ends of the pipeline, and the same plugging operation is performed at the two inspection wells. The plugging operation is:

[0045] Place the closed water test sewage pipe sealing device into the inspection well, so that the left plug and the right plug are stuck at the sewage pipe openings on the left and right sides of the inspection well, then hold the sleeve 12 with one hand and turn the handle 11 with the other hand to rotate the operating rod 1 (the sleeve 12 and the operating rod 1 slide and rotate together so that the sleeve 12 does not rotate). When the operating rod 1 rotates, the upper threaded seat 5 and the lower threaded seat 6 approach each other (if they are turned in reverse, they will move away from each other, and at this time, you only need to rotate the handle 11 in the opposite direction to correct it), thereby forcing each articulated rod to approach the horizontal state, forcing the left plug to move to the left and the right plug to move to the right, until the conical plug 15 completely presses the opening of the sewage pipe and forms a tight seal, completing the plugging operation.

[0046] After the water-tightness test, the handle 11 is rotated in the reverse direction to move the upper threaded seat 5 and the lower threaded seat 6 away from each other in the vertical direction, and the left plug and the right plug are synchronously approached to the operating rod, so that the sewage pipe opening is no longer pressed. After the reverse rotation, the utility model can be taken out of the inspection well.

[0047] The above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can still be modified or replaced by equivalents. Any modification or partial replacement that does not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A closed water test sewage pipe closing device, comprising a vertically arranged operating rod, characterized in that: The middle and lower part of the operating rod has an external thread, and the part with the external thread is called a threaded part. The threaded part includes an upper threaded part and a lower threaded part, and the thread rotation directions of the upper threaded part and the lower threaded part are opposite; the upper threaded part is threadedly connected to an upper threaded seat, and the lower threaded part is threadedly connected to a lower threaded seat; The upper threaded seat is hinged to the left and right with an upper left hinged rod and an upper right hinged rod respectively, and the lower threaded seat is hinged to the left and right with a lower left hinged rod and a lower right hinged rod respectively. The upper left hinged rod and the lower left hinged rod are respectively hinged to the left with the same left plug, and the upper right hinged rod and the lower right hinged rod are respectively hinged to the right with the same right plug. The left plug is used to close the sewage pipe on the left side of the inspection well, and the right plug is used to close the sewage pipe on the right side of the inspection well.

2. The closed water test sewage pipe sealing device according to claim 1, characterized in that: The top of the operating rod is horizontally connected with a crank rod as a handle; the top of the operating rod is sleeved with a shaft sleeve, which serves as a gripping part for users to hold conveniently.

3. The closed water test sewage pipe sealing device according to claim 1 or 2, characterized in that: The left plug and the right plug are symmetrical in structure, and both include a vertically arranged base plate; The upper left hinged rod, the upper right hinged rod, the lower left hinged rod and the lower right hinged rod are collectively referred to as hinged rods, with the direction pointing to the operating rod as the inner direction, and a hinge seat is provided on the inner surface of the base plate, and the hinge seat is used to be hinged with the hinge rod; A conical plugging block with a small outside and a large inside is fixedly connected to the outer surface of the base plate. The conical plugging block is made of rubber or silicone. The inner end diameter of the conical plugging block is larger than the diameter of the sewage pipe.

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