Floor drain plugging device
Through the dual sealing technology of limit plates, crimp rods and rubber plugs, combined with protective plates and rubber pads, the problem of water running and foreign matter pollution in the water storage experiment of nuclear power plant floor drains is solved, achieving higher sealing and cleanliness sex.
Patent Information
- Application Number
- CN202421014259.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-05-11
AI Technical Summary
The floor drain of nuclear power plants is prone to water running problems during water storage experiments. The traditional sealing method is not effective, resulting in equipment damage and contamination, and the floor drain is easily contaminated by foreign objects during installation.
The floor drain sealing device is adopted that includes a limiting plate, a crimp rod, a connecting screw, a nut and a rubber plug. The crimping plate and a sleeve are used to seal the crimping rod and a secondary sealing of the crimping rod and a rubber The pad plate realizes double sealing and protection of stainless steel pipes.
It effectively prevents water from flowing out of stainless steel pipes during the water filling experiment, improves the sealing ability of the floor drain sealing device, reduces the probability of equipment damage, and prevents foreign matters from entering during the concrete pouring process, keeping the pipeline clean.
Smart Images
Figure CN222227517U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipeline floor drains, in particular to a floor drain plugging device. Background Art
[0002] The floor drains in the nuclear island area of the CAP1000 nuclear power plant adopt an open structure. After the construction of the nuclear power plant floor drain system, the entire floor drain system needs to be tested for water. The traditional method is to plug an air bag into the pipe inside the floor drain to seal the floor drain. However, during the experiment, due to the high water pressure in the pipe, the air bag is prone to explode, causing water to flow out of the pipe on the lower side of the floor drain, causing water leakage and damage to equipment in the nuclear island area of the CAP1000 nuclear power plant.
[0003] In addition, most of the floor drains are installed before the pre-embedded pouring of civil walls and floor slabs. They are poured together with the floor slabs and walls. The on-site environment is relatively complex. If the floor drains are not protected during this period, foreign objects in the concrete pouring process will fall into the floor drains, which will cause inconvenience to the subsequent cleaning and use of the floor drains. The conventional floor drain protection method is only to block and protect the floor drain inlet or top surface. The protection effect is not ideal. The accumulated water with mud will penetrate into the floor drain and the connected pipes, thereby polluting the pipe system. Because nuclear power plants have high requirements for system cleanliness, especially the radioactive sewage drainage system, nuclear power plants occasionally discharge radioactive sewage after operation. If the pipeline cleanliness does not meet the requirements, it may cause radioactive pollution accumulation and affect the safety of the nuclear power plant system. Utility Model Content
[0004] The utility model aims to provide a floor drain plugging device to solve the problem that the floor drain of a nuclear power plant is prone to water leakage during a water filling experiment under the prior art.
[0005] To achieve this purpose, the utility model adopts the following technical scheme: the utility model provides a floor drain plugging device, including a limiting plate, a crimping rod, a connecting screw, a nut and a rubber plug, the limiting plate is crimped on the sleeve of the floor drain body, the floor drain body is installed on a stainless steel pipe, the rubber plug is crimped at the opening of the stainless steel pipe, the sleeve is installed in the floor drain body, a first fixing screw hole is formed on the floor drain body, the connecting screw is screwed into the first fixing screw hole, a second fixing screw hole and a crimping screw hole are formed on the limiting plate, the connecting screw is also screwed into the second fixing screw hole, the crimping rod is screwed into the crimping screw hole, the crimping rod abuts against the rubber plug, the nut is screwed on the connecting screw and crimped on the upper side of the limiting plate.
[0006] Preferably, the floor drain plugging device further comprises a pressing plate, a plug sleeve is fixed to one side of the pressing plate, the other side of the pressing plate abuts against the rubber plug, and the pressing rod is plugged into the plug sleeve.
[0007] Preferably, a handle is formed at the top end of the crimping rod, and the handle is perpendicular to the axis of the crimping rod.
[0008] Preferably, the rubber plug is in a truncated cone shape, the rubber plug is made of rubber, the bottom surface area of the rubber plug is larger than the top surface area, and the bottom surface of the rubber plug is inserted into the stainless steel pipe.
[0009] Preferably, the floor drain plugging device also includes a protective plate and a rubber pad, the rubber pad cover is connected to the sleeve, the protective plate is crimped onto the rubber pad, a third fixing screw hole is formed on the protective plate, the connecting screw is screwed into the third fixing screw hole, and the nut is screwed onto the connecting screw and abuts against the protective plate.
[0010] Preferably, the floor drain sealing device further comprises a plug, and the plug is screwed into the crimping screw hole.
[0011] Preferably, the protective plate and the limiting plate are circular or rectangular. When the limiting plate is rectangular, four groups of second fixing screw holes are opened at the edge of the limiting plate, and four groups of third fixing screw holes are opened at the edge of the protective plate. The connecting screws correspond one-to-one to the second fixing screw holes, and the connecting screws correspond one-to-one to the third fixing screw holes.
[0012] Beneficial effect: When conducting a water filling test, the limit plate is crimped onto the sleeve of the floor drain through a nut to seal the floor drain once, and then the crimping rod is rotated to make the lower end of the crimping rod abut against the rubber plug, so that the rubber plug performs a secondary seal on the stainless steel pipe opening. The above two seals can prevent water from flowing out of the stainless steel pipe during the water filling test, thereby improving the sealing ability of the floor drain plugging device and reducing the probability of water leakage damaging equipment in the nuclear island area of the CAP1000 nuclear power plant. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is the installation diagram of the limit plate of the utility model;
[0014] Figure 2 This is an installation diagram of the protective plate of the utility model.
[0015] In the figure: 1. limit plate; 2. crimping rod; 3. connecting screw; 4. rubber plug; 5. sleeve; 6. pressure plate; 7. handle; 8. protective plate; 9. rubber pad; 10. floor drain body; 11. stainless steel pipe. DETAILED DESCRIPTION
[0016] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.
[0017] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0018] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0019] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.
[0020] Under the existing technology, when conducting a water filling test, the airbag is inserted into the sleeve of the floor drain to achieve the sealing of the floor drain. However, during the water filling test, due to excessive water pressure, the airbag may explode, causing water to flow out along the stainless steel pipe. In addition, most of the floor drains are installed before the pre-embedded pouring of civil walls and floor slabs. During the pouring and installation process, cement and other debris may enter the floor drain. The existing protection effect is not ideal and cannot completely block the debris.
[0021] Embodiment 1
[0022] In order to solve the above problems, Figure 1 to Figure 2As shown, the utility model provides a floor drain plugging device, including a limiting plate 1, a crimping rod 2, a connecting screw 3, a nut and a rubber plug 4. The limiting plate 1 is crimped on the sleeve 5 of the floor drain body 10. The limiting plate 1 is circular. The floor drain body 10 is installed on a stainless steel pipe 11. The rubber plug 4 is crimped at the opening of the stainless steel pipe 11. The sleeve 5 is installed in the floor drain body 10. A first fixing screw hole is formed on the floor drain body 10. The connecting screw 3 is screwed into the first fixing screw hole. A second fixing screw hole and a crimping screw hole are formed on the limiting plate 1. The connecting screw 3 is also screwed into the second fixing screw hole. The crimping rod 2 is screwed into the crimping screw hole. The crimping rod 2 abuts against the rubber plug 4. The nut is screwed on the connecting screw 3 and crimped on the upper side of the limiting plate 1.
[0023] A first fixing screw hole is provided on the floor drain body 10 of the utility model, which is convenient for fixing the vertical connecting screw 3 on the floor drain body 10. At the same time, the sleeve 5 can slide perpendicular to the ground to adjust the height of the sleeve 5, and the limit plate 1 can adjust its position on the connecting screw 3 by rotating with the connecting screw 3, so that the limit plate 1 can adapt to the height of different sleeves 5, so that the limit plate 1 can always be pressed on the sleeve 5.
[0024] When conducting a water filling experiment, a connecting screw 3 is screwed into the second fixing screw hole of the limit plate 1, and the limit plate 1 is fixed on the sleeve 5. The first layer of sealing is achieved by crimping the limit plate 1 and the sleeve 5. Then, the crimping rod 2 is screwed into the crimping screw hole, and the crimping rod 2 is rotated downward so that the crimping rod 2 abuts against the rubber plug 4, and the rubber plug 4 is crimped onto the mouth of the stainless steel pipe 11, thereby achieving a second layer of sealing of the mouth of the stainless steel pipe 11. The above two layers of sealing can prevent water from flowing out of the stainless steel pipe 11 during the water filling experiment, thereby ensuring the sealing and stability of the entire pipeline system during the test, preventing water leakage, and reducing the probability of equipment damage. If water enters the floor drain along the gap between the rubber plug 4 and the floor drain body 10, the pressure of the crimping rod 2 on the rubber plug 4 can be increased by rotating the handle 7 to enhance the sealing.
[0025] The floor drain plugging device also includes a pressing plate 6, a plug sleeve is fixed on one side of the pressing plate 6, and the other side of the pressing plate 6 abuts against the rubber plug 4. The crimping rod 2 is inserted in the plug sleeve. The contact area between the pressing plate 6 and the rubber plug 4 is larger than the contact area between the crimping rod 2 and the rubber plug 4, so that the rubber plug 4 can receive more uniform pressure, increase the pressure in the contact area between the rubber plug 4 and the stainless steel pipe 11, and achieve better sealing effect. At the same time, the pressing plate 6 is also convenient for workers to disassemble and assemble.
[0026] A handle 7 is formed at the top of the crimping rod 2 of the utility model. The handle 7 is perpendicular to the axis of the crimping rod 2. The crimping rod 2 can be driven to rotate by rotating the handle 7. The worker holds the handle 7 to rotate the crimping rod 2, which provides greater pressure on the rubber plug 4 and improves the sealing ability.
[0027] The rubber plug 4 of the utility model is in a truncated cone shape and is made of rubber. The bottom area of the rubber plug 4 is larger than the top area. The bottom surface of the rubber plug 4 is inserted into the stainless steel pipe 11, and the side of the rubber plug 4 with a smaller diameter is inserted into the stainless steel pipe 11. Since the rubber plug 4 is made of rubber, better sealing ability can be provided through the deformation of the rubber material.
[0028] The floor drain plugging device also includes a protective plate 8 and a rubber pad 9. The protective plate 8 is circular in shape. The rubber pad 9 is covered on the sleeve 5. The protective plate 8 is crimped on the rubber pad 9. A third fixing screw hole is formed on the protective plate 8. The connecting screw 3 is screwed into the third fixing screw hole. The nut is screwed on the connecting screw 3 and abuts against the protective plate 8.
[0029] Before the water filling test, it is necessary to prevent cement and other materials from entering the stainless steel pipe 11 during the construction of the floor drain system. The sleeve 5 is sealed by covering the rubber pad 9 on the sleeve 5 and crimping the protective plate 8 on the rubber pad 9. At the same time, the rubber plug 4 is still inserted into the mouth of the stainless steel pipe 11 to prevent external impurities from entering the stainless steel pipe 11, so that the inside of the pipe is kept clean and foreign matter is prevented from entering and causing blockage.
[0030] The limit plate 1 and the protective plate 8 of the utility model can be installed on the connecting screw 3. Before the water filling test or during the concrete pouring process around the floor drain, the protective plate 8 will be screwed onto the connecting screw 3. If a water filling test is required, the limit plate 1 will be installed on the connecting screw 3.
[0031] The protective plate 8 and the limiting plate 1 of the utility model can also be rectangular. When the limiting plate 1 is rectangular, four groups of second fixing screw holes are opened at the edge of the limiting plate 1, and four groups of third fixing screw holes are opened at the edge of the protective plate 8. The connecting screws 3 correspond one-to-one to the second fixing screw holes, and the connecting screws 3 correspond one-to-one to the third fixing screw holes.
[0032] The edges of the protective plate 8 and the limit plate 1 can be fixed respectively through four sets of connecting screws 3, so that the protective plate 8 can be horizontally covered on the rubber pad 9 to achieve better sealing, and the limit plate 1 can also be horizontally covered on the sleeve 5 to directly achieve sealing. The protective plate 8 and the limit plate 1 can be replaced by the connecting screws 3, which is convenient for workers to disassemble and replace, saving the number of parts and reducing costs.
[0033] Embodiment 2
[0034] The floor drain plugging device of the utility model also includes a plugging plug, which is screwed into the crimping screw hole. In this embodiment, the protective plate 8 can be eliminated, and the front and rear sealing can be achieved by only using the limiting steel plate to hold water. In order to achieve the sealing during the pouring of concrete around the floor drain, the crimping rod 2 is taken out, and the plugging plug is screwed into the crimping screw hole so that the crimping screw hole on the limiting steel plate can be blocked. A rubber pad 9 is installed between the sleeve 5 and the limiting steel plate to achieve sealing, so as to prevent foreign debris or muddy water from entering the stainless steel pipe 11.
[0035] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.
Claims
1. A floor drain plugging device, characterized in that: The invention comprises a limit plate (1), a crimping rod (2), a connecting screw (3), a nut and a rubber plug (4); the limit plate (1) is crimped onto a sleeve (5) of a floor drain body (10); the floor drain body (10) is installed on a stainless steel pipe (11); the rubber plug (4) is crimped onto the opening of the stainless steel pipe (11); the sleeve (5) is installed in the floor drain body (10); a first fixing screw hole is formed on the floor drain body (10); the connecting screw (3) is screwed into the first fixing screw hole; a second fixing screw hole and a crimping screw hole are formed on the limit plate (1); the connecting screw (3) is also screwed into the second fixing screw hole; the crimping rod (2) is screwed into the crimping screw hole; the crimping rod (2) abuts against the rubber plug (4); the nut is screwed onto the connecting screw (3) and crimped onto the upper side of the limit plate (1).
2. The floor drain plugging device according to claim 1, characterized in that: The floor drain plugging device also includes a pressing plate (6), a plug sleeve is fixed on one side of the pressing plate (6), the other side of the pressing plate (6) abuts against the rubber plug (4), and the pressing rod (2) is plugged into the plug sleeve.
3. The floor drain plugging device according to claim 1, characterized in that: A handle (7) is formed at the top end of the crimping rod (2), and the handle (7) is perpendicular to the axis of the crimping rod (2).
4. The floor drain plugging device according to claim 1, characterized in that: The rubber plug (4) is in a truncated cone shape and is made of rubber. The bottom surface area of the rubber plug (4) is larger than the top surface area. The bottom surface of the rubber plug (4) is inserted into the stainless steel pipe (11).
5. The floor drain plugging device according to claim 1, characterized in that: The floor drain plugging device also includes a protective plate (8) and a rubber pad (9), wherein the rubber pad (9) is covered on the sleeve (5), the protective plate (8) is pressed onto the rubber pad (9), a third fixing screw hole is formed on the protective plate (8), the connecting screw (3) is screwed into the third fixing screw hole, and the nut is screwed onto the connecting screw (3) and abuts against the protective plate (8).
6. The floor drain plugging device according to claim 1, characterized in that: The floor drain plugging device also includes a plugging plug, which is screwed into the crimping screw hole.
7. The floor drain plugging device according to claim 5, characterized in that: The protective plate (8) and the limiting plate (1) are circular or rectangular. When the limiting plate (1) is rectangular, four groups of second fixing screw holes are opened at the edge of the limiting plate (1), and four groups of third fixing screw holes are opened at the edge of the protective plate (8). The connecting screws (3) correspond to the second fixing screw holes one by one, and the connecting screws (3) correspond to the third fixing screw holes one by one.