Closed water test device suitable for test water head with height higher than wellhead

Abstract

The utility model belongs to the technical field of closed water detection of constructional engineering, and particularly relates to a closed water test device suitable for testing that a water head is higher than a wellhead, which is used for testing leakproofness of inspection wells at two ends of a pipeline, and comprises a water filling end air column bag and a plugging end air column bag, a first inflation opening is formed in the upper end of the water filling end air column bag; a third inflation chamber is formed in the plugging end air column bag, a second inflation opening is formed in the upper end of the plugging end air column bag, the inflation chambers and the third inflation chamber are inflated, and after being inflated and formed, the plugging end air column bag is attached to the well wall to achieve the sealing effect; the water filling channel is adopted to fill water into the pipeline, the upper end face of the water filling end air column bag is higher than the upper end face of the first inspection well, it can be guaranteed that water can be filled in the height section higher than the inspection well, and the requirement for the test water head height is met.

Description

Technical Field

[0001] The utility model belongs to the technical field of water-tightness detection in construction projects, and particularly relates to a water-tightness test device suitable for testing a water head height higher than a wellhead. Background Art

[0002] The performance and quality of drainage pipes affect the discharge of rainwater and sewage, and are crucial to the normal operation of urban infrastructure. Existing regulations require drainage pipes to undergo a closed-water test. According to the "Code for Construction and Acceptance of Water Supply and Drainage Pipeline Engineering" (GB50268-2008), if the design water head upstream of the test section does not exceed the inner wall of the pipe top, the test water head should be calculated based on the inner wall of the pipe top upstream of the test section plus 2 meters. If the design water head upstream of the test section exceeds the inner wall of the pipe top, the test water head should be calculated based on the design water head upstream of the test section plus 2 meters.

[0003] However, in actual operation, the height of the inspection well cannot meet this requirement. In addition, many inspection wells are not tight, which often affects the results of the water-tightness test. Utility Model Content

[0004] In view of this, in order to solve the problems existing in the prior art, the purpose of the present invention is to provide a water-tightness test device suitable for testing a water head height higher than the wellhead, which has the effect of meeting both the sealing requirements and the test water head height requirements.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A water-tightness test device suitable for testing water heads higher than wellheads, used to test the tightness of inspection wells at both ends of a pipeline, wherein a first inspection well and a second inspection well are respectively connected at both ends of the pipeline, wherein the device comprises: an air column bag at a water filling end and an air column bag at a blocking end, wherein an air chamber for filling with external gas is formed on the air column bag at the water filling end, a first air filling port communicating with the air chamber is formed at the upper end of the air column bag at the water filling end, and a water filling channel for filling water is formed on the air column bag at the water filling end, wherein the water filling channel is communicated with one end of the pipeline;

[0007] A third inflation chamber for external gas to be filled is formed in the blocking end air column bag, and a second inflation port communicating with the third inflation chamber is opened at the upper end of the blocking end air column bag;

[0008] The upper end surface of the air column bag at the water filling end is higher than the upper end surface of the first inspection well, a part of the lower end of the air column bag at the water filling end is arranged in the first inspection well and can be operably fitted with the inner wall of the first inspection well, another part of the lower end of the air column bag at the water filling end extends into the pipeline and can be operably fitted with the inner wall of one end of the pipeline, the air column bag at the blocking end is arranged in the second inspection well, and the outer wall of the air column bag at the blocking end can be operably fitted with the inner wall of the second inspection well and block the other end of the pipeline.

[0009] The specific technical effect is: air is inflated into the inflation chamber through the first inflation port, and air is inflated into the third inflation chamber through the second inflation port. After inflation and forming, it can fit the well wall to play a sealing role. The other part of the lower end of the air column bag at the water filling end is extended into the pipeline and can fit the inner wall of the pipeline after inflation and forming to play a sealing role; water is poured into the pipeline through the water filling channel. The air column bag itself has strong support. The upper end face of the air column bag at the water filling end is higher than the upper end face of the first inspection well, which can ensure that the height section above the inspection well can be filled with water, thereby achieving the test head height requirement.

[0010] Furthermore, the air column bag at the water filling end includes a first body and a second body, the upper end of the first body is recessed downward to form a first water filling channel, a first inflation chamber for external gas to be filled is formed on the first body, a first inflation port connected to the first inflation chamber is opened at the upper end of the first body, the second body is arranged on the side wall of the lower end of the first body, a second inflation chamber connected to the first inflation chamber is formed on the second body, a second water filling channel is opened on the second body, one end of the second water filling channel is connected to the lower end of the first water filling channel, the lower end of the first body is arranged in the first inspection well, and the second body extends into the pipeline.

[0011] The specific technical effect is: by setting the first body, it can fit the wall of the first inspection well after being inflated and formed to play a sealing role, the second body is extended into the pipeline and can fit the inner wall of the pipeline after being inflated and formed to play a sealing role, and the sealing end air column bag can fit the wall of the second inspection well after being inflated and formed to play a sealing role, and can also block the other end of the pipeline; the second water filling channel and the first water filling channel are connected, so that the water filling end air column bag can meet the test head height requirements during the closed water test.

[0012] Furthermore, the first body includes a side wall portion and a base portion, the first inflation port is opened at the upper end of the side wall portion, the first water filling channel is formed in the side wall portion, the base portion is arranged at the lower end of the side wall portion to block the lower end of the first water filling channel, and the second body is arranged on the side wall of the lower end of the side wall portion.

[0013] Furthermore, the side wall portion is composed of a plurality of first hollow air columns, which are interconnected in adjacent first hollow air columns, and the first inflation port is opened at the upper end of any one of the first hollow air columns. The base portion is composed of a plurality of second hollow air columns arranged and provided at the lower end of the first hollow air column, which are interconnected in adjacent second hollow air columns, and the second hollow air column is connected to the lower end of the first hollow air column. The second body is composed of a plurality of third hollow air columns and is connected to the side wall of the lower end of the first hollow air column, and the adjacent third hollow air columns are interconnected.

[0014] The specific technical effect is: by adopting this structural design, vertical lines will be formed at the connection points of adjacent first hollow air columns, adjacent second hollow air columns or adjacent third hollow air columns, which can increase the friction force on the outer surface of the air column bag at the water filling end and ensure the tightness of the inspection well.

[0015] Furthermore, the length of the third hollow air column is cm.

[0016] The specific technical effect is: with this design, the third hollow air column can extend into the pipeline, ensuring the tightness between the third hollow air column and the pipeline wall.

[0017] Furthermore, the blocking end air column bag includes a first part and a second part, the second inflation port is arranged at the upper end of the first part, the first part is arranged in a cylindrical structure, and the second part is arranged at the lower end of the second part.

[0018] Furthermore, the first part is composed of a number of fourth hollow air columns, and the adjacent fourth hollow air columns are interconnected. The second inflation port is opened at the upper end of any one of the fourth hollow air columns. The second part is composed of a number of fifth hollow air columns arranged and provided at the lower end of the fourth hollow air column. The adjacent fifth hollow air columns are interconnected, and the fifth hollow air column is connected to the lower end of the fourth hollow air column.

[0019] The specific technical effect is: by adopting this structural design, the connection between the adjacent fourth hollow air columns or the adjacent fifth hollow air columns will form vertical stripes, which can increase the friction force on the outer surface of the air column bag at the blocking end and ensure the tightness of the inspection well.

[0020] Furthermore, the air column bag at the water filling end and the air column bag at the blocking end are both made of plastic.

[0021] Furthermore, the upper end surface of the blocking end air column bag is at least higher than the pipe top at the other end of the pipeline.

[0022] The beneficial effects of the utility model are:

[0023] (1) Inflate the first inflatable chamber through the first inflatable port and inflate the third inflatable chamber through the second inflatable port. After inflation and forming, the air column bag can fit the well wall to play a sealing role. The other part of the lower end of the air column bag at the water filling end extends into the pipeline and can fit the inner wall of the pipeline to play a sealing role after inflation and forming.

[0024] (2) Water is poured into the pipeline through a water filling channel. The air column bag has strong support. The upper end surface of the air column bag at the water filling end is higher than the upper end surface of the first inspection well, which can ensure that water can be poured into the section above the height of the inspection well, thereby achieving the test head height requirement.

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 It is a structural diagram of the utility model;

[0028] Figure 2 This is a structural diagram of the air column bag at the water filling end of the utility model;

[0029] Figure 3 This is a structural diagram of the air column bag at the blocked end of the utility model;

[0030] Figure 4 It is a structural schematic diagram of the bottom of the blocking end air column bag of the utility model.

[0031] In the picture:

[0032] 1. Air column bag at the water filling end; 2. Air column bag at the blocking end; 21. First part; 22. Second part; 3. First body; 31. Side wall; 32. Base; 4. Second body; 5. First water filling channel; 6. First inflation port; 7. Second water filling channel; 8. Second inflation port; 9. Pipeline; 10. First inspection well; 11. Second inspection well. DETAILED DESCRIPTION

[0033] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0034] like Figures 1 to 4 As shown, a closed water test device suitable for testing water head height higher than the wellhead is shown, which includes: a water filling end air column bag 1 and a blocking end air column bag 2. The water filling end air column bag 1 includes a first body 3 and a second body 4. The upper end of the first body 3 is recessed downward to form a first water filling channel 5. The first body 3 is formed with a first air-filling chamber for filling with external gas. The upper end of the first body 3 is provided with a first air filling port 6 communicating with the first air-filling chamber. The second body 4 is provided on the side wall of the lower end of the first body 3. The second body 4 is formed with a second air-filling chamber communicating with the first air-filling chamber. The second body 4 is provided with a second water filling channel 7. One end of the second water filling channel 7 is communicated with the lower end of the first water filling channel 5.

[0035] A third inflation chamber for external gas to be filled is formed in the blocking end air column bag 2, and a second inflation port 8 communicating with the third inflation chamber is opened at the upper end of the blocking end air column bag 2.

[0036] It should be noted here that: air is inflated into the first air chamber through the first inflation port 6, and air is inflated into the third air chamber through the second inflation port 8. After inflation and molding, it can fit the well wall to play a sealing role. The second body 4 is extended into the pipe 9 and inflated and molded, and can fit the inner wall of the pipe 9 to play a sealing role; the second water filling channel 7 and the first water filling channel 5 are connected, and the air column bag itself has strong support, which can ensure that water can be filled in the section above the height of the inspection well, thereby achieving the test head height requirement.

[0037] The air column bag 1 at the water filling end is arranged in an L-shaped structure, and the air column bag 2 at the blocking end is arranged in an I-shaped structure.

[0038] The first body 3 includes a side wall portion 31 and a base portion 32. The first inflation port 6 is opened at the upper end of the side wall portion 31. The first water filling channel 5 is formed in the side wall portion 31. The base portion 32 is arranged at the lower end of the side wall portion 31 to block the lower end of the first water filling channel 5. The second body 4 is arranged on the side wall of the lower end of the side wall portion 31.

[0039] The side wall portion 31 is composed of a plurality of first hollow air columns, and the adjacent first hollow air columns are interconnected. The first inflation port 6 is opened at the upper end of any first hollow air column. The base portion 32 is composed of a plurality of second hollow air columns arranged and provided at the lower end of the first hollow air column, and the adjacent second hollow air columns are interconnected. The second hollow air column is connected to the lower end of the first hollow air column. The second body 4 is composed of a plurality of third hollow air columns and is connected to the side wall of the lower end of the first hollow air column, and the adjacent third hollow air columns are interconnected.

[0040] It should be noted here that by adopting this structural design, vertical lines will be formed at the connection points of adjacent first hollow air columns, adjacent second hollow air columns or adjacent third hollow air columns, which can increase the friction force on the outer surface of the air column bag 1 at the water filling end and ensure the tightness of the inspection well.

[0041] The length of the third hollow air column is 30 cm.

[0042] It should be noted here that: with this design, the third hollow air column can extend into the pipe 9, ensuring the tightness between the third hollow air column and the pipe wall.

[0043] The blocking end air column bag 2 includes a first part 21 and a second part 22 . The second inflation port 8 is arranged at the upper end of the first part 21 . The first part 21 is arranged in a cylindrical structure, and the second part 22 is arranged at the lower end of the second part 22 .

[0044] The first part 21 is composed of a number of fourth hollow air columns, and the adjacent fourth hollow air columns are interconnected. The second inflation port 8 is opened at the upper end of any fourth hollow air column. The second part 22 is composed of a number of fifth hollow air columns arranged and set at the lower end of the fourth hollow air column. The adjacent fifth hollow air columns are interconnected, and the fifth hollow air column is connected to the lower end of the fourth hollow air column.

[0045] It should be noted here that: by adopting this structural design, the connection between the adjacent fourth hollow air columns or the adjacent fifth hollow air columns will form vertical stripes, which can increase the friction force on the outer surface of the blocking end air column bag 2 and ensure the tightness of the inspection well.

[0046] The air column bag 1 at the water filling end and the air column bag 2 at the blocking end are both made of plastic.

[0047] The first inspection well 10 and the second inspection well 11 are respectively arranged at the two ends of the pipeline 9. The lower end of the first inspection well 10 is connected to one end of the pipeline 9, and the lower end of the second inspection well 11 is connected to the other end of the pipeline 9. A part of the first body 3 is arranged in the first inspection well 10, and the outer wall of the first body 3 can be operably fitted with the inner wall of the first inspection well 10. The second body 4 extends into the pipeline 9, and the outer wall of the second body 4 can be operably fitted with the inner wall of one end of the pipeline 9. The sealing end air column bag 2 is arranged in the second inspection well 11, and the outer wall of the sealing end air column bag 2 can be operably fitted with the inner wall of the second inspection well 11 and seal the other end of the pipeline 9.

[0048] The upper end surface of the first body 3 is higher than the upper end surface of the first inspection well 10, and the upper end surface of the blocking end air column bag 2 is at least higher than the pipe top at the other end of the pipeline 9.

[0049] It should be noted here that: by setting up the first body 3, it can fit the wall of the first inspection well 10 after being inflated and formed to play a sealing role, the second body 4 is extended into the pipe 9 and can fit the inner wall of the pipe 9 after being inflated and formed to play a sealing role, and the sealing end air column bag 2 can fit the wall of the second inspection well 11 after being inflated and formed to play a sealing role, and can also block the other end of the pipe 9; the second water filling channel 7 and the first water filling channel 5 are connected, so that the water filling end air column bag 1 can meet the test head height requirements during the closed water test.

[0050] The specific operating steps of this utility model are as follows:

[0051] Install the water filling end air column bag 1 in the first inspection well 10, extend the second body 4 into the pipe 9, and then insert the inflation nozzle of the inflation gun into the first inflation port 6. At the same time, pinch the position of the inflation nozzle and the first inflation port 6 with your hands to prevent air from leaking in. Turn on the inflation switch and start to inflate the water filling end air column bag 1. When the water filling end air column bag 1 is inflated to full shape, that is, the first body 3 fits the wall of the first inspection well 10 and the second body 4 fits the inner wall of the pipe 9, the inflation gun can be pulled out. The water filling end air column bag 1 after inflation has strong self-supporting property, and the upper end face of the first body 3 is higher than the upper end face of the first inspection well 10, which can ensure that it is higher than The height section of the first inspection well 10 can also be filled with water, so as to meet the test head height requirement; then install the blocking end air column bag 2 in the second inspection well 11, and then insert the inflation nozzle of the inflation gun into the second inflation port 8, and at the same time pinch the position of the inflation nozzle and the second inflation port 8 with your hands to prevent air leakage from rushing in, turn on the inflation switch, and start to inflate the blocking end air column bag 2. When the blocking end air column bag 2 is inflated to full shape, that is, the blocking end air column bag 2 fits the wall of the second inspection well 11 and blocks the other end of the pipe 9, the inflation gun can be pulled out; finally, water can be poured into the first water filling channel 5 and the second water filling channel 7 to perform a water-tightness test.

[0052] The inflation nozzle of the inflation gun is provided with a one-way check valve to prevent gas leakage after inflation is completed. The water-filling end air column bag 1 and the blocking end air column bag 2 can be inflated and automatically locked at the same time, without worrying about leakage.

[0053] The beneficial effects of the utility model are:

[0054] (1) By setting the first body 3, after being inflated and formed, it can fit the wall of the first inspection well 10 to play a sealing role. The second body 4 is extended into the pipe 9 and after being inflated and formed, it can fit the inner wall of the pipe 9 to play a sealing role. The blocking end air column bag 2 can fit the wall of the second inspection well 11 after being inflated and formed to play a sealing role, and can also block the other end of the pipe 9;

[0055] (2) The second water filling channel 7 and the first water filling channel 5 are connected to each other so that the air column bag 1 at the water filling end can meet the test water head height requirement during the closed water test.

[0056] The various devices selected in this application are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0057] In the description of the embodiments of the present invention, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0058] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0059] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. A closed water test device suitable for testing water head height higher than the wellhead, used for testing the tightness of inspection wells at both ends of a pipeline, wherein a first inspection well (10) and a second inspection well (11) are respectively connected at both ends of the pipeline (9), characterized in that: include: A water filling end air column bag (1) and a blocking end air column bag (2), wherein the water filling end air column bag (1) is formed with an air filling chamber for external gas to be filled, the upper end of the water filling end air column bag (1) is provided with a first air filling port (6) in communication with the air filling chamber, and the water filling end air column bag (1) is provided with a water filling channel for filling water, and the water filling channel is in communication with one end of the pipe (9); A third inflation chamber for external gas to be filled is formed in the blocking end air column bag (2), and a second inflation port (8) communicating with the third inflation chamber is provided at the upper end of the blocking end air column bag (2); The upper end surface of the air column bag (1) at the water filling end is higher than the upper end surface of the first inspection well (10), a part of the lower end of the air column bag (1) at the water filling end is arranged in the first inspection well (10) and can be operably fitted with the inner wall of the first inspection well (10), another part of the lower end of the air column bag (1) at the water filling end extends into the pipe (9) and can be operably fitted with the inner wall of one end of the pipe (9), the air column bag (2) at the blocking end is arranged in the second inspection well (11), and the outer wall of the air column bag (2) at the blocking end can be operably fitted with the inner wall of the second inspection well (11) and blocks the other end of the pipe (9).

2. A closed water test device suitable for testing water head height higher than the wellhead as described in claim 1, characterized in that: The water filling end air column bag (1) includes a first body (3) and a second body (4), the upper end of the first body (3) is recessed downward to form a first water filling channel (5), the first body (3) is formed with a first inflation chamber for external gas to be filled, the upper end of the first body (3) is provided with a first inflation port (6) connected to the first inflation chamber, the second body (4) is arranged on the side wall of the lower end of the first body (3), the second body (4) is formed with a second inflation chamber connected to the first inflation chamber, the second body (4) is provided with a second water filling channel (7), one end of the second water filling channel (7) is connected to the lower end of the first water filling channel (5), the lower end of the first body (3) is arranged in the first inspection well (10), and the second body (4) extends into the pipe (9).

3. A closed water test device suitable for testing water head height higher than the wellhead as described in claim 2, characterized in that: The first body (3) comprises a side wall portion (31) and a base portion (32); the first air inlet (6) is opened at the upper end of the side wall portion (31); the first water filling channel (5) is formed in the side wall portion (31); the base portion (32) is arranged at the lower end of the side wall portion (31) to block the lower end of the first water filling channel (5); and the second body (4) is arranged on the side wall at the lower end of the side wall portion (31).

4. A closed water test device suitable for testing water head height higher than the wellhead as described in claim 3, characterized in that: The side wall portion (31) is formed by a plurality of first hollow air columns, and the adjacent first hollow air columns are interconnected. The first inflation port (6) is opened at the upper end of any one of the first hollow air columns. The base portion (32) is formed by a plurality of second hollow air columns arranged and arranged at the lower end of the first hollow air column, and the adjacent second hollow air columns are interconnected. The second hollow air column is connected to the lower end of the first hollow air column. The second body (4) is formed by a plurality of third hollow air columns and is connected to the side wall of the lower end of the first hollow air column, and the adjacent third hollow air columns are interconnected.

5. A closed water test device suitable for testing water head height higher than the wellhead as described in claim 3, characterized in that: The length of the third hollow air column is 30 cm.

6. A closed water test device suitable for testing water head height higher than the wellhead as described in claim 1, characterized in that: The blocking end air column bag (2) comprises a first part (21) and a second part (22), the second inflation port (8) is arranged at the upper end of the first part (21), the first part (21) is arranged in a cylindrical structure, and the second part (22) is arranged at the lower end of the second part (22).

7. A closed water test device suitable for testing water head height higher than the wellhead as claimed in claim 6, characterized in that: The first part (21) is composed of a plurality of fourth hollow air columns, and the adjacent fourth hollow air columns are interconnected. The second inflation port (8) is opened at the upper end of any one of the fourth hollow air columns. The second part (22) is composed of a plurality of fifth hollow air columns arranged and arranged at the lower end of the fourth hollow air column, and the adjacent fifth hollow air columns are interconnected. The fifth hollow air column is connected to the lower end of the fourth hollow air column.

8. A closed water test device suitable for testing water head height higher than the wellhead as claimed in claim 1, characterized in that: The water-filling end air column bag (1) and the blocking end air column bag (2) are both made of plastic.

9. A closed water test device suitable for testing water head height higher than the wellhead as claimed in claim 1, characterized in that: The upper end surface of the blocking end air column bag (2) is at least higher than the pipe top at the other end of the pipe (9).

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