WO2006005244A1 - A water-flushing backflow prevention drain device - Google Patents

Abstract

A water-flushing backflow prevention drain device includes a set casing (1), a shutter grate (2) and a backflow valve body (3) with permanent-magnet. The device is erect, its height is longer than 1.5 times of the largest caliber of the valve port at lower end of the long cylindraceous valve cylinder of the long cylindraceous valve body (3); a shaft (14) is fastened on the horizontal central line at lower end of the valve cylinder, an end of semicircular valve sheet (8) is jointed on the shaft (14) and covering the valve port (5); when the valve sheet is closing, a permanent magnet (10) which is in the middle of flexible seal of the valve sheet (8) and a soft magnet (10) which is on the a brace (7) at lower end of valve port of valve cylinder are opposed and interattracted; it is adopted that the projecting height of the bolt is tunable or that the permanent magnet, the bolts and the brace are transposited; the valve sheet can seal the valve port tightenly, which prevents odor, poison, moth, backflow and prevents from blocking drain pipe by the deposit because of small stream; when liquid level is higher than scheduled height, the valve sheet will open entirely automatically and bring water flush; which can help cleanout of the pipe and does not jam easily; the drain pipe can makeup gas automatically and can know the working condition of floor drain at any moment.

Description

 Water impact anti-reverse drainage device

Technical field

 The invention relates to a water-tight impact anti-reverse drainage device without water seal, in particular to an upright insertion drainage pipe which is convenient for construction, installation, disassembly and cleaning, and has a permanent magnet for preventing odor, insect, fire, anti-virus and anti-overflow. Reverse drainage. Background technique

 The literature analysis of the disclosed permanent magnet principle anti-reverse drainage device is as follows:

 1, such as: Patent application number: 86104109 - permanent magnet type check valve, patent number: 01235804. 5 - magnetic check valve, patent number: 02265586. 7 - permanent magnet check valve, etc., the overall flow resistance of these valves Large, and without considering the cleaning and troubleshooting problems, it is only suitable for a one-way valve component in a well-sealed sealed piping system as a conveying medium.

 2. Patent No.: 01235804. 5 - Magnetic check valve, patent number: 86104109A - Permanent magnet type check valve, etc. Its permanent magnet is a circular ring body on the valve port or valve plate, which occupies a large space and costs. high.

 3. Some check valves and related floor drains require that the connected drain pipe be horizontal, or the floor drain and drain plugs are not on the same axis as the drain pipe, eg Patent No.: 01235804. 5 - Magnetic check valve, patent number: 02230512 2 - Three anti-floor drains, which is inconvenient for installing floor drains and drain plugs for vertical drain pipes.

 4, the use of permanent magnet tipping principle floor drain and toilet, such as patent number: 03108724. 8 - series of tipping bucket floor drain, etc., occupying a large space, inconvenient maintenance.

 5. Patent No.: 95231251. 4 - A kind of magnetic sealing valve such as anti-ground leakage. The force applied to the valve plate is outside the sealing port, so that the pressure around the sealing port is unevenly distributed and easy to leak.

 6, patent number: 95230278. 0 - building drainage pipeline check valve, patent number: 92107193. 0 - drain pipe gas, water check valve (Figure 1, Figure 2), these two forms of circular valve plate Unable to open the maximum open position shown in the figure.

 7. Taiwan Patent Announcement No.: 203308 - Magnetic automatic opening and closing water trap, the valve plate is closed by the repulsive force of the permanent magnet. The valve plate increases the repulsive force as the opening increases, which limits the flow force.

In addition: most of the floor drains and drain plugs commonly used at home and abroad still use the traditional buckled or watertight water seal structure, which does not have anti-reverse function, and because of its water meandering and water resistance, the flow is small, and its body And connected horizontal drainage pipes are easily blocked by sediments and fibrous materials such as sediment, and often need to be cleaned. It is recognized that most of the water-tight seals in the bowl are in a dry state of failure. In the sewer, bacteria and small insects are directly and quietly discharged into the room with various harmful gases, which seriously pollutes the indoor air environment and is a source of airborne diseases. First, it is a long-term invisible killer in life, and urgently wait for new products to replace them. Summary of the invention

 The purpose of the invention:

 (1) This new model completely eliminates the traditional buckle-bending, water-bending and other forms of water-sealing structures, and completely overcomes the shortcomings caused by its working principle for many years.

 (2) When the amount of water flowing into the new floor drain or drain plug is small, it is not drained to prevent sediment, residue, etc. from gradually depositing in the horizontal section or corner of the drain pipe to block the sewer phenomenon. When the water volume is large enough, the valve plate is fully opened. The flow resistance is small, the flow rate is large, the water is quickly drained, the water impact is formed, and the pipeline cleaning is facilitated. It is not easy to block, and hair, cotton, sand, etc. can be discharged smoothly.

 (3) When there is a sudden negative pressure in the drainage pipe, the new type of pipe system automatically replenishes the gas (recovers the pipe at normal pressure), and then automatically restores the anti-reverse blockage in time, completely avoiding the traditional buckle-type floor drain and the return bend. The water seal is sucked dry, causing odorless failure. Even if it is completely water-free, the device can be normally blocked, and no artificial water supply is needed.

 (4) When the toilet exhaust or central vacuum system works at a negative pressure in the indoor air or when the lower drainage pipe is blocked, the device can still reliably stop the reverse, and does not overflow, insect, odor, fire. , explosion-proof, anti-air pollution spread.

 (5) For the new building and the old buckled floor drain building, the new device can be used for construction, installation and transformation, which is convenient for waterproofing and convenient for grounding with different thickness.

 (6) The structure is simple, there are few moving parts, no precision parts, and no wearing parts other than elastic sealing materials.

 (7) Even blind and deaf people can always know whether the device is working properly or not, and it is easy to handle it by itself.

 The water impact anti-reverse drainage device of the invention comprises: a fixed shell, a water raft on the fixed shell, and a three-part permanent magnet check valve body which is conveniently loaded and unloaded at the center of the fixed shell.

 The water-impacting anti-reverse drainage device is upright, and the long cylindrical valve cylinder 6 of the long cylindrical valve body 3 is fixed to the fixed casing 1 and inserted upright into the drainage pipe 4, the total height of which is larger than that of the long cylindrical hollow tube 6 The maximum diameter of the port 5 of the lower end is 1.5 times or more; the shaft 14 is fixed at the horizontal central axis position of the lower end of the valve barrel 6; one side of the semicircular valve plate 8 is hinged on the shaft 14 and covers the wide opening 5 The permanent magnet block 10 at the center of the elastic sealing port 11 on the valve plate 8 and the soft magnetic material bolt 9 fixed to the column body 7 in the valve port 5 at the lower end of the valve barrel 6 are in the closed state of the valve plate 8 Corresponding to each other and attracting each other; the protruding height of the bolt 9 is adjustable, or the displacement of the permanent magnet block 10 with the bolt 9 and the pillar body 7 is adopted.

 The total height of the water shock reverse drainage device is greater than three times the maximum diameter of the valve port 5 at the lower end of the long cylindrical valve cylinder 6 of the long cylindrical valve body 3.

The valve body 3 is inserted and locked to the fixed casing 1 by a short thread or a sloping boss 12. 5厘米。 The outer diameter of the fixed portion of the outer diameter of the fixed portion of the outer diameter of the drainage pipe 4 is a clearance fit with the inner diameter of the standard size of the drainage pipe 4; the length is not less than 2. 5 cm. The valve cartridge 6 is inserted into the drain duct 4 through the fixed casing 1. The upper part of the fixed casing 1 has an enlarged inner cavity to accommodate more water. The plane of the valve port 5 on the hemispherical side of the lower end of the long cylindrical valve cylinder 6 with a single valve plate 8 is at an angle of less than 40 degrees to the plane perpendicular to the axis of the shaft 14; the slope 15 and the valve of the shaft 14 are fixed The upwardly inclined and smooth connection between the cylinders 6 reduces the flow resistance; the lower end of the inner wall of the valve cylinder 6 and the other side corresponding to the slope plate 15 are fixed with a streamlined baffle 16 which is directly above the pillar body 7 The pillar body 7 and the soft magnetic bolt 9 do not affect the closing of the valve plate 8, so as not to carry the fiber debris in the sewage; a gap is left between the deflector 16 and the lower end of the slope plate 15.

 For the valve cartridge 6 directly inserted into the original buckle bowl floor drain 26 or directly inserted into the drain pipe 4, the upper end is a tapered tubular bayonet 21, the upper port is large, and the outer sleeve has a tight tapered rubber The sleeve 23, the upper portion of the tapered tubular bayonet 21 is a large-diameter torque port 22 whose outer edge is non-slip; the outer wall of the valve cylinder 6 has four > valve cylinder ribs 25 and the inner diameter of the drain duct 4 is a clearance fit.

 The bottom of the valve barrel 6 has a horizontal cross composed of a horizontal support 24 and a pillar body 7 A, 7 B. The horizontal support 24 has a lower horizontal shaft 14 and is hinged with two semicircular valve plates 8A, 8B and fixed with two valve plates. Two auxiliary return springs 27A, 27B; the permanent magnet blocks 10A, 10B at the center of the two valve plates are positioned to position the soft magnetic bolts 9 A, 9B on the column bodies 7A, 7B, respectively, when the two valve plates 8A, 8B are in the closed state Corresponding separately. For the double valve plate permanent magnet repulsion reset floor drain, the lower horizontal shaft 14 of the horizontal support 24 at the bottom of the bottom of the valve barrel 6 is hinged with two semicircular valve plates 8A, 8B, and the permanent magnet block 10A is fixed at the center positions of the two valve plates respectively. 10B, the two permanent magnets respectively correspond to the positions of the two soft magnetic bolts 9A, 9B on the two inclined lower pillar bodies 7A, 7B on both sides of the lower end of the valve cylinder 6.

 The lower end of the horizontal support 24 is a two-slab 8A, 8B reset bracket 28, and the lower end of the bracket is provided with a permanent magnet block 10C, and the two pole faces of the permanent magnet block 10C respectively correspond to the positions of the permanent magnet blocks 10A, 10B of the two valve plates 8A, 8B respectively. And the magnetic poles are respectively repelled and installed; the two valve ports 5A, 5B symmetrically distributed at the lower central axis of the valve barrel 6 have the same plane and the horizontal plane axis 14 are perpendicular to the vertical plane, and are less than 60 degrees; 6 above the lower end of the inner wall of the two pillar bodies 7A, 7B, respectively, corresponding to the streamlined baffles 16A, 16B, covering the pillar bodies 7A, 7B and the upper soft magnetic bolts 9A, 9B, does not affect the valve plates 8A, 8B Closed; the lower end of the outer wall of the valve barrel 6 has a circumferentially distributed anti-biasing fulcrum 29, and its outer height is matched with the inner diameter of the drainage pipe 4 to ensure concentricity with the drainage pipe 4 during installation.

 Inside the valve barrel 6, there is a second-stage filter screen that facilitates the removal of a large volume of the barrel. The drainage is more reliable.

 The valve body 3 and the fixed casing matched with the water body 2 are installed in the ground drain. The valve body 3 and the fixed casing matched thereto are provided, and the water tweezers 2 are mounted on the drain port at the bottom of the container.

 The valve body 3 is separately mounted on the bottom drain of the container.

Advantageous Effects: The water impact reverse drainage device of the present invention avoids the deficiencies of the conventional buckle bowl and the water return water seal principle drainage device and the prior art described above in the prior art, and can completely achieve the purpose of creation in the foregoing specification. , and the structure is simple, practical, reliable and convenient. DRAWINGS

 BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the structure of a single valve plate water impingement backstop in accordance with the present invention. Fig. 2 is a schematic view showing the modification of the embodiment of the present invention 2 - double valve plate spring for the use of the buckle bowl type floor drain.

 Fig. 3 is a partial schematic view showing the leakage of the permanent magnet repulsive force resetting of the double valve plate in the embodiment of the present invention. Drawing identification:

 1. Fixed casing 2. Water raft 3. Wide body 4. Drainage pipe

 5, (5A, 5B) valve port 6, valve barrel 7, (7A, 7B) pillar body

 8, (8A, 8B) valve plate 9, (9A, 9B) soft magnetic bolt

 1 0, (1 0A, 10B, I OC ) permanent magnet block 11, (1 1A, 11B) sealing port

12, slope-shaped boss 1 3, sealing ring 14, shaft

 15. Slope 16 (16A, 16B) deflector

 17, filter 18, sealing paste 19, bayonet

 20, washing machine drain pipe 21, tapered tubular bayonet 22, torque port

 23, rubber casing 24, horizontal center support 25, valve cylinder rib

 26, in the use of floor drain casing (27A, 27B) auxiliary return spring

 28, reset the bracket 29, anti-biasing point. detailed description

 The floor drain is described in detail below with reference to FIG. 1 to FIG. 4;

 BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the structure of a water-impacting anti-reverse drain of a single valve plate according to an embodiment of the water-impacting anti-drainage device of the present invention. The floor drain comprises a fixed shell fixed on the ground surface layer, a water raft on the fixed shell, an oblong tubular permanent magnet check valve body 3 conveniently mounted on the fixed shell, and three parts.

 The basic working principle of the floor drain is a long cylindrical permanent magnet suction closed check valve that hinges the vertical posture of the single valve plate 8 into the drain pipe 4. When the water intake is small and the water level does not reach the set touch height, The valve plate 8 is not opened to avoid the phenomenon that the sediment and debris deposition caused by the small water flow block the horizontal drain pipe; when the water inlet exceeds the set valve plate 8 to touch the water level, the water pressure exceeds the magnet and the valve in the valve body 3 The permanent magnet attraction of the plate 8 immediately touches the valve plate 8, and all of them are opened, and the water is quickly drained to generate water impact, which is beneficial to clean the drainage pipe; when the water intake is large, the valve plate 8 is not closed, and the flow rate is maximized; When a negative pressure suddenly occurs in the pipeline 4, the pipeline is automatically ventilated, and the normal pressure inside the pipe is automatically maintained; then the anti-reverse plugging is resumed in time, completely avoiding the occurrence of the buckle-type floor drain and the water seal in the return bend being sucked dry. The common phenomenon of deodorizing function failure. Even if it is completely water-free, it can still be blocked normally. It does not need artificial water supply and peace of mind.

The floor drain has a total height greater than the maximum dimension of the valve port 5 of the oblate valve body 3 of the oblong tubular shape of 1. 5 times or more, has accommodated sufficient water pressure to open the valve plate, preferably to make the floor drain The maximum size of the diameter of the valve port 5 of the check valve body 3 whose height is larger than the oblong tubular shape is more than three times. The fixed casing 1 has an enlarged inner cavity to accommodate a larger amount of water for a greater amount of water impact. The valve body 3 is inserted upright into the drain pipe 4, and is coaxial, which occupies a small space on the ground, which is very convenient for construction and waterproofing. The oblong tubular valve body 3 is fixed or detached from the fixed casing 1 by a short thread or a sloping boss 12 for easy overall cleaning and overhaul. When the valve body 3 and the fixed casing 1 are mounted, the pressure seal is achieved by the sealing jaws 13. 5厘米。 In order to prevent the valve body 3 from being inserted into the drainage pipe 4 eccentric, the outer diameter of the lower portion of the fixed casing 1 is inserted into the drainage pipe 4 and the outer diameter of the drainage pipe 4 is a clearance fit; the length is not less than 2. 5 cm; The outer diameter of the outer diameter is the nominal size of the drainage pipe 4, the lower end of the fixed casing 1 should be inserted outside the drainage pipe, the length of the insertion depth is not less than 2. 5 cm, to adapt to the different thickness of the floor and the cushion, adjust its height Convenience. A sealing paste 18 is applied between the construction installation and the drain pipe 4.

 The valve plate 8 of the size just covering the valve port 5 is freely suspended on the shaft 14 by a side hinge, and the shaft 14 is fixed on the horizontal central axis of the lower end of the valve cylinder 6 of the long cylindrical valve body 3, and the wide plate can swing freely. The shaft 14 is selected on the lower end of the valve barrel 6 and the horizontal central axis to reduce the flow resistance in order to obtain a large amount of water impact and the maximum opening of the valve plate 8.

A central portion of the sealing opening 11 of the valve plate 8 is fixed with a block _{7 of} 10 μm, and the soft magnetic bolt 9 fixed to the valve body 5 of the valve port 5 in the valve barrel 6 is closed when the valve plate 8 is closed. And attracting each other to achieve the sealing of the valve port 5 and the valve plate 8 is fully opened at a moment when the water level exceeds the set opening height.

 The permanent magnet block 10 is selected at the center of the sealing port 11 in order to ensure that the pressure distribution around the circumference is as uniform as possible for better sealing and low cost.

 By adjusting the extension height of the bolt 9, or by other means of picking up the magnet, the pressure of the closing of the discharge port of the valve plate 8 is adjusted. The purpose of the adjustable suction is to reduce the technical requirements for design, materials and installation. It is only necessary to adjust the height of the touch water level on site by means of factory commissioning or installation.

 The valve plate 8 is closed and reset. After draining, the valve plate 8 is suspended from the shaft 14 in a natural drooping state, and is closed under the suction of the soft magnetic bolt 9 on the permanent magnet block 10 and the pillar body 7.

 One side of the single valve plate 8 is fixedly fixed to the shaft 14 of the lower end of the slope plate 15 which is inclined inwardly and downwardly on one side of the valve cylinder 6 and approaches the horizontal central axis of the valve cylinder 6, except for the fixed bearing 14. Tilting is to reduce water resistance and diversion. The valve port 5 plane of the lower end hemispherical side of the upright long cylindrical valve cylinder 6 is inclined downward from the axis of the shaft 14 on the horizontal center axis of the lower end of the valve cylinder 6, and is inclined downward toward the opposite direction of the valve plate 8, with the shaft 14 The angle of the vertical line of the axis is less than 40 degrees, and the purpose of the inclination is to reduce the water flow resistance and the diversion.

The other side corresponding to the lower end slope plate 15 of the upright valve cylinder 6 is fixed with the first-class linear baffle 16, and directly above the pillar body 7, covering the pillar body 7 and its soft magnetic bolt 9 does not affect the valve plate 8 Closing, avoiding the phenomenon of entrainment of the fibrous material; the deflector 16 and the pillar body 7 can be integrated, and the gap between the deflector 16 and the slope 15 is as large as possible, Reduce flow resistance. Moreover, since the valve body 3 is directly arranged on the drainage pipe, it is not easy to block, and even when the secondary filter 17 is not installed, even hair, cotton, sand, and the like can be smoothly discharged.

 Since there is a large space in the long cylindrical valve cylinder 6, a barrel-shaped second-stage filter screen 17 which is easy to remove is provided to accommodate foreign matter such as foreign matter in the sewage, and the drainage is more reliable.

 The draining washing machine tube 20 can be stuck on the mouth of the valve body 3 through the bayonet 19, and does not leak water, and does not smell.

 Fig. 2 is a schematic view showing the modification of the 2-double valve plate spring in the embodiment of the present invention for the use of the buckle-type floor drain. The fixed casing 1 of the first embodiment is removed, and a tapered tubular bayonet 21 is added to the upper end of the valve cylinder 6. The upper port is large, and the outer sleeve is provided with a tight tapered rubber bushing 23, and the upper portion of the tapered tubular bayonet 21 receives the force. Port 22. When the old floor drain is modified 26, the original buckle bowl is removed, and then the valve body 3 and the rubber sleeve 23 are inserted into the drain pipe 4, and the torque port 22 is tightened. The outer wall of the valve barrel 6 has four circumferentially uniform dimensions and a standard size drainage pipe. 4 The inner diameter is a short valve rib 25 with a clearance fit to prevent the long cylindrical valve cylinder 6 and the drainage pipe 4 from being eccentric.

 The lower end of the valve barrel 6 of the embodiment is a symmetric two-way open double valve plate 8A, 8B, one side of each valve plate is hinged with the horizontal axis 14 of the lower horizontal center support 24 on the horizontal central axis of the lower end of the valve barrel 6; In the middle of the two pillar bodies 7A, 7B horizontally perpendicular to the horizontal center support 24, each has a height-adjustable soft magnetic bolt 9A, 9B which is respectively placed on the side of the valve plate 8A, 8B facing the valve port 5 of the valve. The permanent magnet blocks 10A, 10B fixed in the middle of the sealing opening 11 having the elastic sealing material correspond to each other and attract each other; on the shaft 14, there are auxiliary closing return springs 27A, 27B, and permanent magnet blocks on the valve plates 8A, 8B. The 10A, 10B and the attraction forces of the bolts 9A, 9B on the pillar bodies 7A, 7B act to reset and close the two valve plates 8A, 8B.

 3 is a partial schematic view showing a three-valve plate permanent magnet repulsive reset ground leakage scheme according to an embodiment of the present invention, two valve ports 5A, 5B plane symmetrically distributed at a lower central axis of the valve barrel 6 and a vertical plane perpendicular to the horizontal axis 14 The angles are symmetrical, and are less than 60 degrees; the two valve plates 8A, 8B are hinged to the bearing 14 of the horizontal center support 24, and the permanent magnet blocks 10A, 10B and the valve barrel 6 at the central position of the two valve plates 8A, 8B are The soft magnetic bolts 9A, 9B on the pillar bodies 7A, 7B correspond to each other. Above the pillar bodies 7A, 7B are baffles 16A, 16B covering the pillar bodies 7A, 7B and the bolts 9A, 9B; at the lower end of the horizontal center support 24, an auxiliary reset bracket 28 of two valve plates is extended, and a permanent magnet is fixed at the lower end Block 10C, the polarities of the magnetic poles on both sides thereof are respectively opposite to the polarities of the permanent magnet blocks 10A, 10B at the central portions of the corresponding two broad plates 8A, 8B, and the soft magnetic bolts 9A corresponding to the magnetic blocks 10A, 1 OB The gravitational force of 9B is sufficient to cause the valve plates 8A, 8B to be delivered to the respective valve ports 5A, 5B.

 The water-impacting anti-drainage valve body 3 of the present invention is also separately applicable to the drain port at the bottom of the container and cancels the water return bend.

Claims

 Rights request 1. The water impact backflow drainage device comprises three parts: a fixed shell (1), a water hammer (2) and a permanent magnet check valve body (3), characterized in that: the water impact backflow drainage device is upright The total height is greater than 1.5 times the maximum diameter of the valve port (5) at the lower end of the long cylindrical valve barrel (6) of the long cylindrical valve body (3); the shaft (14) is fixed to the valve barrel (6) The lower end of the horizontal central axis position; one side of the semicircular valve plate (8) is hinged on the shaft (14) and covers the valve port (5); the elastic sealing port on the valve plate (8) (11 a permanent magnet block (10) at the center position and a soft magnetic material bolt (9) fixed to the pillar body (7) at the lower end port (5) of the bellows (6), when the valve plate (8) is closed The positions of the two are corresponding and attracted to each other; the protruding height of the bolt (9) is adjustable, or the displacement of the permanent magnet block (10) and the bolt (9) and the pillar body (7) is adopted.  2. The water impact backflow drainage device according to claim 1, wherein: the total height of the water impact backflow drainage device is greater than the long cylindrical valve cylinder of the long cylindrical valve body (3) ( 6) The valve port (5) at the lower end has a maximum diameter of more than 3 times.  The water impact backflow drainage device according to claim 1 or 2, characterized in that: a fixed casing (1) for facilitating insertion and locking of the valve body (3), and a lower end of the fixed casing (1) reduced in diameter is inserted into the drainage The outer diameter of the pipe (4) part is matched with the inner diameter of the standard specification drainage pipe (4); the length is not less than 2.5 cm; the valve cylinder (6) is inserted into the drainage pipe (4) through the fixed casing (1); 1) The upper part has an enlarged inner cavity.  4. The water impact backflow drainage device according to claim 1 or 2, characterized in that: the valve port (6) with a single valve plate (8) has a hemispherical side valve port (5) plane at the lower end, and the shaft (14) The angle of the axis to the vertical plane is less than 40 degrees; the slope (15) fixed to the shaft (14) is inclined upwardly and smoothly connected with the valve cylinder (6); the lower end of the inner wall of the valve cylinder (6), the slope (15) The corresponding other side is fixed with a streamlined baffle (16), and the baffle (16) is directly above the pillar body (7), covering the pillar body (7) and the soft magnetic bolt (9) , does not affect the closing of the valve plate (8); there is a gap between the deflector (16) and the lower end of the slope (15). The water impact backflow drainage device according to claim 1 or 2, characterized in that: directly inserted into the valve cylinder (6) installed in the original floor drain (26) or directly inserted into the drain pipe (4), The upper end is a tapered tubular bayonet (21), the upper port is large, and the outer sleeve is provided with a tight tapered rubber bushing (23), and the upper portion of the tapered tubular bayonet (21) is a large-diameter torque with an outer edge non-slip. Port (22); The outer wall of the valve barrel (6) has four valve cylinder ribs (2 ⁵ ) and a clearance fit with the inner diameter of the drain pipe (4). The water impact backflow drainage device according to claim 1 or 2, characterized in that: the bottom of the valve cylinder (6) has a horizontal support (2 ⁴ ) and a horizontal cross composed of the pillar bodies (7A) and (7B). The horizontal support (24) is equipped with a horizontal shaft (14) at the lower end, and the shaft (14) is hinged with two semicircular valve plates (8A), (8B), and two auxiliary return springs (27A, 27B); The permanent magnet block (10A, 10B) at the center of the two valve plates is located at the position of the two valve plates (8A, 8B) and the soft magnetic bolts (9A) on the column bodies (7A), (7B). ), (9B) The positions correspond respectively. The water impact backflow drainage device according to claim 1 or 2, characterized in that: the lower end of the horizontal support (24) at the bottom of the valve cylinder (6) is equipped with a horizontal shaft ( ¹⁴ ), the shaft (14) The two semi-circular valve plates (8A) and (8B) are hinged, and the permanent magnet blocks (10A) and (10B) are respectively fixed at the center positions of the two valve plates, and the two permanent magnets are respectively connected with the valve barrel (6). The two soft magnetic bolts (9A) and (9B) on the two inclined lower pillars (7A) and (7B) on the lower end correspond to each other; the lower end of the horizontal support (24) is a two-valve (8A) , 8B) reset bracket (28), the lower end of the bracket is equipped with a permanent magnet block (10C), and the pole faces of the permanent magnet block (10C) respectively correspond to the positions of the permanent magnet blocks (10A) and (10B) of the two valve plates (8A) and (8B), respectively. The magnetic poles are respectively repelled and installed; the two valve ports (5A) of the horizontal center axis of the lower end of the valve cylinder (6) are symmetrically distributed, (5B), the two planes are equal to the horizontal plane of the horizontal central axis (14) and are less than 60 degrees; the upper part of the inner wall of the valve cylinder (6) is above the two pillars (7A, 7B), respectively Streamlined baffles (16A, 16B), covering the pillar body (7A, 7B) and the soft magnetic bolts (9A, 9B) thereon, do not affect the closure of the valve plate (8A, 8B); The lower end of the outer wall has a circumferentially distributed anti-biasing fulcrum (29) whose height is a clearance fit with the inner diameter of the drain pipe (4).  A water-impacting anti-drainage device according to claim 1 or 2, characterized in that: in the valve cylinder (6), a barrel-shaped second-stage filter (17) for easy removal is provided.  The water-impacting anti-reverse drainage device according to claim 1 or 2, wherein the valve body (3) and the fixed casing (1) and the water raft (2) fitted thereto are installed in the floor drain.  The water impact backflow drainage device according to claim 1 or 2, wherein the valve body (3) and the fixed casing (1) and the water raft (2) fitted thereto are mounted on the water discharge port at the bottom of the container.  A water impact reverse drainage device according to claim 1 or 2, wherein: the valve body (3) is separately mounted on the bottom drain of the container.