Casing plugging tool for full water test
By adopting a full-water test casing plugging tool, utilizing a frustum plugger and support rod structure, the problem of labor-intensive and material-intensive casing plugging in sewage treatment plants was solved, achieving a fast and time-saving casing plugging effect and improving construction efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BCEG CIVIL ENGINEERING CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-05-08
AI Technical Summary
The method of sealing the casing of sewage treatment plant structures is labor-intensive, material-intensive, and time-consuming, and it is difficult to flexibly adapt to different specifications of casings, which makes it impossible to carry out the full water test smoothly, and may even require multiple repairs or reconstruction.
A casing plugging tool for full water test is adopted, including a frustum plugger, rubber sheet, manual hoist, load-bearing bar, upper support rod and lower support rod. The support rod is fixed by expansion bolts, and the rubber sheet is used for sealing. The manual hoist is used to connect and achieve casing plugging. It is compatible with casings of different specifications.
It achieves rapid, labor-saving, material-saving, and time-saving casing plugging, improves construction efficiency, and ensures the smooth progress of the full water test.
Smart Images

Figure CN224214952U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of pipeline plugging, and specifically relates to a plugging tool for a full-water test sleeve. Background Technology
[0002] The full-water test is an important functional test after the water tank construction is completed, used to check for water leakage. Pre-drilled holes and embedded pipe openings in the water tank are sealed to ensure no leakage occurs during the test.
[0003] The existing pipe sealing in sewage treatment plant structures is mostly constructed using brick masonry with mortar finishing. This brick-built pipe sealing uses a large amount of bricks and mortar, and is done only once, resulting in wasted labor, materials, and time. Improper operation (such as uneven mortar, loose blocks, or insufficient curing) can easily lead to leakage, making full-water testing impossible and requiring multiple repairs; in some cases, the pipe sealing may even need to be rebuilt until it reaches sufficient strength before conducting a full-water test, wasting valuable construction time. Utility Model Content
[0004] This utility model provides a tool for sealing a casing during a full-water test, which solves the technical problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model adopts the following technical solution: a full-water test sleeve plugging tool, installed on a wall, includes a frustum plug, rubber sheet, manual hoist, load-bearing bar, upper support rod, and lower support rod. The wall has a pre-reserved opening, and the frustum plug is installed within this opening. The frustum plug includes a wooden frustum, which is shaped like a frustum. Both ends of the wooden frustum extend out of the wall. A through hole is provided through the central axis of the wooden frustum, and a stainless steel bolt passes through this hole. Both ends of the stainless steel bolt extend out of the wooden frustum, and a threaded connection is provided on the stainless steel bolt. The head has stainless steel fastening nuts at both ends, and stainless steel bolts with threaded stainless steel pull rings at both ends. The stainless steel pull rings consist of an integral threaded sleeve and a circular ring. The upper and lower support rods have the same structure. The upper support rod includes a wall-connecting steel plate, an intermediate rod, and a load-bearing connecting square tube. The connecting steel plate is fixed to the wall with expansion bolts. One end of the intermediate rod is welded to the connecting steel plate, and the other end is welded to the load-bearing square tube. The load-bearing connecting square tube is vertical, and the load-bearing bar is fixed on the two load-bearing connecting square tubes. The middle part of the load-bearing bar corresponds to the truncated cone sealing device and a manual hoist is fixedly installed. The hook of the manual hoist is connected to the stainless steel pull ring.
[0006] By adopting the above technical solution, during use, on the backwater side of the commonly used casing wall to be blocked, the upper and lower support rods are fixed to the casing wall with expansion bolts to maintain overall stability. The load-bearing bar is connected to the upper and lower support rods as a whole. The truncated cone plug is wrapped with rubber and inserted into the casing on the water-facing side of the structure. The pull ring of the truncated cone plug is connected to the pull ring of the load-bearing bar by a manual hoist hook. Pulling the manual hoist will seal the truncated cone plug tightly to the casing of the structure, thus achieving casing blockage. After the casing is blocked, the load-bearing bar, upper and lower support rods are removed. According to the specifications of the next commonly used casing to be blocked, the corresponding truncated cone plug is selected. The upper and lower support rods and the load-bearing bar are installed on the next casing to block the casing, so that the structure can quickly meet the conditions for full water test. After the full-water test of the structure is completed, the water inside the structure is pumped out. Using the same installation method, the upper support rod, lower support rod, and load-bearing bar are installed on the water-facing side of the structure's pool wall. The truncated cone sealing device is then pulled out, and the load-bearing bar, upper support rod, and lower support rod are removed. This invention effectively solves the problem that traditional sleeve sealing methods commonly used in sewage treatment plant structures are difficult to flexibly adapt to different specifications of sleeves for rapid sealing. Compared with traditional sealing methods, it saves labor, materials, and time, and improves construction efficiency.
[0007] Preferably, epoxy resin is used to fill the space between the stainless steel bolt and the wooden frustum.
[0008] By adopting the above technical solution, a good seal can be achieved between the stainless steel bolt and the wooden frustum.
[0009] Preferably, the wooden frustum is wrapped with rubber.
[0010] By adopting the above technical solution, a good seal can be achieved between the wooden frustum and the wall.
[0011] Preferably, the intermediate rod is a channel steel.
[0012] By adopting the above technical solution, the materials are readily available, lightweight and high-strength, and the use benefits are good.
[0013] Preferably, the load-bearing bar is a square tube, and several support holes are opened along the length direction of the load-bearing bar. The load-bearing connecting square tube is threaded with load-bearing bar support bolts that extend into the support holes.
[0014] By adopting the above technical solution, the installation and coordination are reasonable and the use is convenient.
[0015] Preferably, a sealing steel plate is provided between the stainless steel fastening nut and the wooden frustum, and the size of the sealing steel plate is larger than the size of the through hole in the wooden frustum.
[0016] The above-mentioned technical solution achieves a good fixation effect.
[0017] The beneficial effects of this utility model are as follows: In use, on the back side of the commonly used casing wall to be blocked, the upper and lower support rods are fixed to the casing wall with expansion bolts to maintain overall stability. The load-bearing bar is connected to the upper and lower support rods as a whole. The truncated cone plug is wrapped with rubber and inserted into the casing on the water-facing side of the structure. The pull ring of the truncated cone plug is connected to the pull ring of the load-bearing bar by a manual hoist hook. Pulling the manual hoist will seal the truncated cone plug tightly with the casing of the structure, thus achieving casing blockage. After the casing is blocked, the load-bearing bar, upper and lower support rods are removed. According to the specifications of the next commonly used casing to be blocked, the corresponding truncated cone plug is selected. The upper support rod, lower support rod and load-bearing bar are installed on the next casing to block the casing, so that the structure can quickly meet the conditions for full water test. After the full-water test of the structure is completed, the water inside the structure is pumped out. Using the same installation method, the upper support rod, lower support rod, and load-bearing bar are installed on the water-facing side of the structure's pool wall. The truncated cone sealing device is then pulled out, and the load-bearing bar, upper support rod, and lower support rod are removed. This invention effectively solves the problem that traditional sleeve sealing methods commonly used in sewage treatment plant structures are difficult to flexibly adapt to different specifications of sleeves for rapid sealing. Compared with traditional sealing methods, it saves labor, materials, and time, and improves construction efficiency.
[0018] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention; the main objectives and other advantages of this invention may be realized and obtained by means of the methods particularly pointed out in the description. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;
[0020] Figure 2 This is a schematic diagram of the structure of the frustum-shaped plug according to an embodiment of the present invention;
[0021] Figure 3 This is a schematic diagram of the upper support rod according to an embodiment of the present utility model;
[0022] Figure 4 This is a schematic diagram of the load-bearing bar according to an embodiment of the present utility model.
[0023] Attached reference numerals: 1. Wall; 2. Frustum sealing device; 21. Wooden frustum; 22. Stainless steel bolt; 23. Stainless steel fastening nut; 24. Stainless steel pull ring; 25. Epoxy resin filler; 26. Sealing steel plate; 3. Rubber sheet; 4. Manual hoist; 5. Load-bearing bar; 51. Support hole; 6. Upper support rod; 61. Wall-connecting steel plate; 62. Intermediate rod; 63. Load-bearing connecting square tube; 64. Load-bearing bar support bolt; 7. Lower support rod. Detailed Implementation
[0024] The technical solution of this utility model will be described in detail below through embodiments. The following embodiments are merely exemplary and can only be used to explain and illustrate the technical solution of this utility model, and should not be construed as limiting the technical solution of this utility model.
[0025] like Figure 1-4 A flood test casing sealing tool, installed on a wall 1, includes a frustum sealing device 2, a rubber sheet 3, a manual hoist 4, a load-bearing bar 5, an upper support rod 6, and a lower support rod 7. The wall 1 has a pre-reserved opening, and the frustum sealing device 2 is installed within this opening. The frustum sealing device 2 includes a wooden frustum 21, which is shaped like a frustum. Both ends of the wooden frustum 21 extend beyond the wall 1. A through hole is provided through the central axis of the wooden frustum 21, and a stainless steel bolt 22 passes through this hole. Both ends of the stainless steel bolt 22 extend beyond the wooden frustum 21, and stainless steel fastening nuts 2 are threaded onto the stainless steel bolt 22 at both ends of the wooden frustum 21. 3. Stainless steel bolts 22 are threaded to both ends with stainless steel pull rings 24. The stainless steel pull rings 24 include an integral threaded sleeve and a circular part. The upper support rod 6 and the lower support rod 7 have the same structure. The upper support rod 6 includes a wall-connecting steel plate 61, an intermediate rod 62 and a load-bearing connecting square tube 63. The connecting steel plate is fixed to the wall 1 by expansion bolts. One end of the intermediate rod 62 is welded to the connecting steel plate and the other end is welded to the load-bearing square tube. The load-bearing connecting square tube 63 is vertical. The load-bearing bar 5 is fixed on the two load-bearing connecting square tubes 63. The middle part of the load-bearing bar 5 corresponds to the truncated cone sealing device 2 and a manual hoist 4 is fixedly installed. The hook of the manual hoist 4 is connected to the stainless steel pull ring 24.
[0026] In use, on the backwater side of the commonly used casing wall to be sealed, the upper support rod 6 and the lower support rod 7 are fixed to the casing wall with expansion bolts to maintain overall stability. The load-bearing bar 5 is connected to the upper support rod 6 and the lower support rod 7 as a whole. The truncated cone plug 2 is wrapped with rubber 3 and inserted into the casing on the water-facing side of the structure. The pull ring of the truncated cone plug 2 is connected to the pull ring of the load-bearing bar 5 by the hook of the manual hoist 4. Pulling the manual hoist 4 will seal the truncated cone plug 2 tightly with the casing of the structure, thus achieving casing sealing. After the casing is sealed, the load-bearing bar 5, the upper support rod 6, and the lower support rod 7 are removed. According to the specifications of the next commonly used casing to be sealed, the corresponding truncated cone plug 2 is selected. The upper support rod 6, the lower support rod 7, and the load-bearing bar 5 are installed on the next casing to seal the casing, so that the structure can quickly meet the conditions for full water test. After the full-water test of the structure is completed, the water inside the structure is pumped out. Using the same installation method, the upper support rod 6, lower support rod 7, and load-bearing bar 5 are installed on the water-facing side of the structure's pool wall. The truncated cone plug 2 is then pulled out, and the load-bearing bar 5, upper support rod 6, and lower support rod 7 are removed. This invention effectively solves the problem that traditional sleeve plugging methods commonly used in sewage treatment plant structures are difficult to flexibly adapt to and quickly plug different specifications of sleeves. It saves labor, materials, and time compared to traditional plugging methods, thus improving construction efficiency.
[0027] An epoxy resin filler 25 is placed between the stainless steel bolt 22 and the wooden frustum 21, which can provide a good seal between the stainless steel bolt 22 and the wooden frustum 21.
[0028] The wooden truncated cone 21 is wrapped with rubber sheet 3 on the outside, which can provide a good seal between the wooden truncated cone 21 and the wall 1.
[0029] The intermediate rod 62 is made of channel steel, which is easy to source, lightweight and high-strength, and has good performance benefits.
[0030] The load-bearing bar 5 is a square tube with several support holes 51 along its length. The load-bearing connecting square tube 63 is threaded with load-bearing bar support bolts 64 that extend into the support holes 51. The installation is reasonable and convenient.
[0031] A sealing steel plate 26 is provided between the stainless steel fastening nut 23 and the wooden frustum 21. The size of the sealing steel plate 26 is larger than the size of the through hole in the wooden frustum 21, resulting in a better fixing effect.
[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.
Claims
1. A tool for sealing a casing during a full-water test, characterized in that: Installed on the wall (1), the device includes a frustum plug (2), rubber sheet (3), manual hoist (4), load-bearing bar (5), upper support rod (6), and lower support rod (7). The wall (1) has a pre-reserved opening, and the frustum plug (2) is installed in the pre-reserved opening. The frustum plug (2) includes a wooden frustum (21), which is frustum-shaped. Both ends of the wooden frustum (21) extend out of the wall (1). A through hole is provided through the central axis of the wooden frustum (21), and a stainless steel bolt (22) is inserted through the through hole. Both ends of the stainless steel bolt (22) extend out of the wooden frustum (21). Stainless steel fastening nuts (23) located at both ends of the wooden frustum are threaded onto the stainless steel bolt (22). The bolt (22) has stainless steel pull rings (24) threaded at both ends. The stainless steel pull ring (24) includes an integral threaded sleeve and a circular part. The upper support rod (6) and the lower support rod (7) have the same structure. The upper support rod (6) includes a wall-connecting steel plate (61), an intermediate rod (62) and a load-bearing connecting square tube (63). The connecting steel plate is fixed to the wall (1) by expansion bolts. One end of the intermediate rod (62) is welded to the connecting steel plate and the other end is welded to the load-bearing square tube. The load-bearing connecting square tube (63) is vertical. The load-bearing bar (5) is fixed on the two load-bearing connecting square tubes (63). The middle part of the load-bearing bar (5) corresponds to the truncated cone sealing device (2) and a manual hoist (4) is fixedly installed. The hook of the manual hoist (4) is connected to the stainless steel pull ring (24).
2. The flood test sleeve plugging tool according to claim 1, characterized in that: An epoxy resin filler (25) is provided between the stainless steel bolt (22) and the wooden frustum (21).
3. The water-filled test sleeve plugging tool according to claim 2, characterized in that: The wooden truncated cone (21) is wrapped with rubber sheet (3) on the outside.
4. The water-filled test sleeve plugging tool according to claim 3, characterized in that: The intermediate rod (62) is a channel steel.
5. The water-filled test sleeve plugging tool according to claim 4, characterized in that: The load-bearing bar (5) is a square tube, and several support holes (51) are opened along the length direction of the load-bearing bar (5). The load-bearing connecting square tube (63) is threaded with load-bearing bar support bolts (64) that extend into the support holes (51).
6. The flood test sleeve plugging tool according to claim 5, characterized in that: A sealing steel plate (26) is provided between the stainless steel fastening nut (23) and the wooden frustum (21), and the size of the sealing steel plate (26) is larger than the size of the through hole in the wooden frustum (21).