A floor drain structure with a two-way valve plate and positive and negative pressure resistance for maintenance and balancing of the same floor

Abstract

The present invention discloses a positive and negative pressure resistant floor drain structure for maintenance of a same-layer balance shaft and a two-way valve plate, which relates to the technical field of positive and negative pressure resistant floor drains for maintenance of the same layer, wherein the main body comprises a pressure transmission chamber and a drainage chamber, the pressure transmission chamber being located on one side of the drainage chamber, the pressure conductor being arranged in the pressure transmission chamber of the main body, the upper end of the pressure transmission chamber being in an inclined slope structure, and the upper end of the pressure transmission chamber being provided with an opening. The present invention uses the action of a pressure transmission membrane, a transmission connecting rod and a pressure conductor, so that when the pressure at the upper end of the water seal is greater than the pressure at the lower end, the pressure membrane presses against the pressure conductor, so that the pressure conductor has a tendency to move downward, and the pressure conductor pushes the transmission connecting rod, thereby causing the transmission connecting rod to press against the support rod, preventing the support rod from forming a rotation tendency to push the balance shaft two-way power valve plate, thereby preventing the balance shaft two-way power valve plate from driving the opening and closing valve plate to open, thereby effectively preventing the odor in the sewer pipe from being emitted.

Description

Technical Field

[0001] The present invention relates to the technical field of positive and negative pressure resistance of same-floor maintenance floor drains, and in particular to a same-floor maintenance balance shaft bidirectional valve plate positive and negative pressure resistance floor drain structure. Background Art

[0002] Same-floor drainage is the traditional interlayer drainage treatment method. The most fundamental concept change of the same-floor drainage solution is to completely get rid of the constraints between adjacent floors through the reasonable layout of the pipes within the same floor, and avoid a series of troubles and hidden dangers caused by the drainage horizontal pipe occupying the lower space. The main purpose of installing a floor drain in a toilet or bathroom is to drain the wastewater in the above-mentioned use space. A water seal structure is provided on the floor drain body to prevent toxic and harmful substances in the sewer line from overflowing into the use space. The water seal upstream of the floor drain is placed in the use space, and the evaporation degree will be different due to the different air humidity in the use space, resulting in water seal loss. The water seal will also fail or be lost due to the change of positive and negative pressure in the sewer line, so that the sewage or toxic gas in the sewer line will overflow into the space where the floor drain is used, affecting the sanitary environment and sanitary status of the space where the floor drain is used, and cannot meet the functions and requirements of effective excretion and effective protection that people hope to achieve when using floor drains.

[0003] For example, in the invention patent application entitled "Same-floor odor-proof drainage floor drain" and with publication number CN105525673A, a floor drain structure is designed that is mostly detachable. If one of its parts is damaged, it can be replaced, which is convenient and cost-effective. The water seal depth is greater than 50 mm, so odor is not easy to escape, and the odor-proof effect is good. However, in the existing floor drain, since water is used on each floor and water flows through each pipe, when water flows in the sewer pipe, the air pressure in the sewer pipe will decrease, thereby increasing the pressure above the floor drain, thereby forming a negative pressure effect in the floor drain, causing the water in the water seal to flow away, and thus failing to achieve the sealing and odor-proof effect.

[0004] For example, in the utility model patent named Floor Drain Core and Floor Drain, with publication number CN210797824U, a floor drain core and a sealing plate are designed, wherein the floor drain core is open at both ends and hollow inside, with one end being a water inlet and the other end being a water outlet, and the sealing plate is arranged at the water outlet; an I-shaped groove is provided at the water inlet end of the floor drain core, and the width of the I-shaped groove matches the thickness of the cover plate; the I-shaped groove horizontally penetrates the side wall at the water inlet end of the floor drain core; when the floor drain core needs to be installed or removed, the cover plate can be removed, the cover plate can be vertically inserted into the I-shaped groove, and then the cover plate can be rotated. The cover plate acts as a wrench, which is much stronger than the handle, and the floor drain core can be easily installed or removed. However, when water flows in the sewer pipe, the air pressure in the sewer pipe will decrease, so that the pressure above the floor drain becomes larger, thereby forming a negative pressure effect in the floor drain, causing the sealing plate to open automatically, and thus failing to achieve the effect of sealing and deodorizing. Summary of the Invention

[0005] To achieve the above objectives, the present invention provides a same-layer maintenance balance shaft two-way valve plate positive and negative pressure resistant floor drain structure, the present invention is achieved through the following technical solutions: a same-layer maintenance balance shaft two-way valve plate positive and negative pressure resistant floor drain structure, comprising a water seal box, the water seal box is provided with a first pipe, the water seal box and a second pipe is provided on one side of the first pipe, a water seal body is fixedly installed in the water seal box, the lower end and the side wall of the water seal body are open structures, the open structure of the side wall of the water seal body is connected to the second pipe, the upper wall of the water seal body is inclined structure, a nut is fixedly installed on the upper end of the water seal box, an eccentric opening is provided on the nut, an internal thread is provided in the eccentric opening, a threaded sleeve is screwed in the eccentric opening, a carrier is fixedly installed on the upper end of the threaded sleeve, a bracket is fixedly installed in the carrier, the cross-section of the bracket is a funnel-shaped structure, a pressure differential sealing device is inserted in the funnel-shaped structure of the bracket, and a grate is provided on the upper end port cover of the carrier.

[0006] Preferably, the pressure differential sealing device includes a main body, a pressure conductor and a balance shaft bidirectional power valve plate, characterized in that the main body includes a pressure transmission chamber and a drainage chamber, the pressure transmission chamber is located on one side of the drainage chamber, the pressure conductor is arranged in the pressure transmission chamber of the main body, the upper end of the pressure transmission chamber is an inclined slope structure, the upper end of the pressure transmission chamber is provided with an opening, the upper end surface of the opening is provided with a pressure transmission membrane, the lower end of the pressure transmission membrane is in contact with the upper wall surface of the pressure transmission body, a transmission connecting rod is fixedly installed on the lower end of the pressure transmission body, a limit bottom cover is fixedly installed on the lower wall surface of the pressure transmission chamber, the transmission connecting rod passes through the limit bottom cover, the transmission connecting rod The lower end is an inclined arc surface structure, and a pair of balancing brackets are fixedly installed on the lower wall of the limiting bottom cover. The balancing shaft two-way power valve plate is rotatably connected between the pair of balancing brackets. A support rod is fixedly installed on the upper wall of the left end of the balancing shaft two-way power valve plate, and the upper end of the support rod is an inclined arc surface structure. The lower end of the transmission connecting rod is in contact with the upper end of the support rod. An opening and closing valve plate is fixedly installed on the right end of the balancing shaft two-way power valve plate, and the opening and closing valve plate is in contact with the lower end port of the drainage chamber. A magnetic core bracket is fixedly installed between the pair of balancing brackets and above the balancing shaft two-way power valve plate, and a magnetic core power source is provided on the magnetic core bracket and on the balancing shaft two-way power valve plate.

[0007] Preferably, the pressure conductor, the pressure conductor membrane and the limit cover plate are parallel to each other, a limit plate is fixedly installed on the lower wall of the pressure conductor and located on one side of the transmission connecting rod, and the limit plate is located in the pressure conductor cavity.

[0008] Preferably, an air pressure conduction hole is provided on the lower wall of the limiting bottom cover and located on one side of the transmission connecting rod.

[0009] Preferably, the magnetic core power source includes a first fixed magnetic core, a second fixed magnetic core, a first moving magnetic core and a second moving magnetic core. The first fixed magnetic core and the second fixed magnetic core are fixedly installed on the magnetic core bracket from left to right, and the first moving magnetic core and the second moving magnetic core are fixedly installed on the balance shaft bidirectional power valve plate from left to right.

[0010] Preferably, the remaining portion of the pressure conduction cavity formed by the main body is the drainage cavity.

[0011] Preferably, the front and rear walls on both sides of the balancing shaft bidirectional power valve plate are respectively fixedly mounted with rotating shafts, and the balancing shaft bidirectional power valve plate is rotatably connected between a pair of balancing brackets via the rotating shafts.

[0012] Preferably, an observation port is provided on the upper wall of the water seal body, and an inspection cover is installed inside the observation port.

[0013] Beneficial effects

[0014] The present invention provides a positive and negative pressure resistant floor drain structure with a two-way valve plate for maintenance of a balance shaft on the same floor. The present invention uses the action of a pressure conduction membrane, a transmission connecting rod, and a pressure conductor, so that when the pressure at the upper end of the water seal is greater than the pressure at the lower end, the pressure membrane presses against the pressure conductor, causing the pressure conductor to have a tendency to move downward, and causing the pressure conductor to push the transmission connecting rod, thereby causing the transmission connecting rod to press against the support rod, preventing the support rod from forming a rotational tendency to push the balance shaft two-way power valve plate, thereby preventing the balance shaft two-way power valve plate from driving the opening and closing valve plate to open, thereby effectively preventing the odor in the sewer pipe from being emitted. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of a same-level maintenance balance shaft two-way valve plate positive and negative pressure resistant floor drain structure described in the present invention.

[0016] Figure 2 This is a schematic cross-sectional view of a same-level maintenance balance shaft bidirectional valve plate positive and negative pressure resistant floor drain structure described in the present invention.

[0017] Figure 3 This is a schematic diagram of the explosion structure of a same-level maintenance balance shaft two-way valve plate positive and negative pressure resistant floor drain structure described in the present invention.

[0018] Figure 4 This is a structural schematic diagram of a pressure differential sealing device for a same-level maintenance balance shaft bidirectional valve plate positive and negative pressure resistant floor drain structure described in the present invention.

[0019] Figure 5 This is a schematic cross-sectional view of the pressure differential sealing device of the positive and negative pressure resistant floor drain structure with a two-way valve plate for maintenance of a balance shaft on the same floor as described in the present invention.

[0020] In the figure: 1. Water seal box; 2. First pipe; 3. Second pipe; 4. Water seal body; 5. Nut; 6. Threaded sleeve; 7. Bearing body; 8. Bearing frame; 9. Grate; 10. Main body; 11. Pressure transmission chamber; 12. Drainage chamber; 13. Pressure conductor; 14. Transmission connecting rod; 15. Air pressure transmission hole; 16. Pressure transmission membrane; 17. Limiting bottom cover; 18. Balance shaft two-way power valve plate; 19. Support rod; 20. Rotating shaft; 21. Balance bracket; 22. Magnetic core bracket; 23. Opening and closing valve plate; 24. Sealing ring; 25. First fixed magnetic core; 26. Second fixed magnetic core; 27. First moving magnetic core; 28. Second moving magnetic core; 29. ​​Inspection cover; 30. Pressure differential sealing device. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-5The present invention provides a technical solution: a same-layer maintenance balance shaft two-way valve plate positive and negative pressure resistant floor drain structure, comprising a water seal box 1, a first pipe 2 is provided on the water seal box 1, a second pipe 3 is provided on the water seal box 1 and located on one side of the first pipe 2, a water seal body 4 is fixedly installed in the water seal box 1, the lower end and the side wall of the water seal body 4 are open structures, the open structure of the side wall of the water seal body 4 is connected to the second pipe 3, the upper wall of the water seal body 4 is an inclined structure, a nut 5 is fixedly installed on the upper end of the water seal box 1, an eccentric opening is provided on the nut 5, an internal thread is provided in the eccentric opening, a threaded sleeve 6 is screwed in the eccentric opening, a carrier 7 is fixedly installed on the upper end of the threaded sleeve 6, the carrier A carrier 8 is fixedly installed in the carrier 7. The cross-sectional shape of the carrier 8 is a funnel-shaped structure. A pressure differential sealing device 30 is inserted in the funnel-shaped structure of the carrier 8. The upper end port cover of the carrier 7 is equipped with a grate 9. The pressure differential sealing device 30 includes a main body 10, a pressure conductor 13 and a balance shaft two-way power valve plate 18. It is characterized in that the main body 10 includes a pressure transmission chamber 11 and a drainage chamber 12. The pressure transmission chamber 11 is located on one side of the drainage chamber 12. The pressure conductor 13 is arranged in the pressure transmission chamber 11 of the main body 10. The upper end of the pressure transmission chamber 11 is an inclined slope structure. The upper end of the pressure transmission chamber 11 is provided with an opening. The upper end surface of the opening is provided with a pressure transmission membrane 16. The lower end of the pressure transmission membrane 16 contacts the upper wall of the pressure conductor 13. The lower end of the pressure conductor 13 is fixedly installed with a transmission connecting rod 14. The lower wall of the pressure transmission chamber 11 is fixedly installed with a limited bottom cover 17. The transmission connecting rod 14 passes through the limited bottom cover 17. The lower end of the transmission connecting rod 14 is an inclined arc surface structure. A pair of balance brackets 21 are fixedly installed on the lower wall of the limited bottom cover 17. The balance shaft two-way power valve plate 18 is rotatably connected between the pair of balance brackets 21. A support rod 19 is fixedly installed on the upper wall of the left end of the balance shaft two-way power valve plate 18. The upper end of the support rod 19 is an inclined arc surface structure. The lower end of the transmission connecting rod 14 is aligned with the upper end of the support rod 19. The right end of the balancing shaft two-way power valve plate 18 is fixedly installed with an opening and closing valve plate 23, and the opening and closing valve plate 23 is in contact with the lower end port of the drainage chamber 12. A magnetic core bracket 22 is fixedly installed between a pair of balancing brackets 21 and above the balancing shaft two-way power valve plate 18. A magnetic core power source is provided on the magnetic core bracket 22 and the balancing shaft two-way power valve plate 18. The pressure conductor 13, the pressure conduction membrane 16 and the limit cover are parallel to each other. A limit plate is fixedly installed on the lower wall of the pressure conductor 13 and on one side of the transmission connecting rod 14. The limit plate is located in the pressure conduction chamber 11. The lower wall of the limit bottom cover 17 and on one side of the transmission connecting rod 14 are provided with an air pressure conduction hole 15.The magnetic core power source includes a first fixed magnetic core 25, a second fixed magnetic core 26, a first moving magnetic core 27, and a second moving magnetic core 28. The first fixed magnetic core 25 and the second fixed magnetic core 26 are fixedly mounted on the magnetic core bracket 22 from left to right. The first moving magnetic core 27 and the second moving magnetic core 28 are fixedly mounted on the balancing shaft two-way power valve plate 18 from left to right. The remaining portion of the pressure conduction chamber 11 formed by the main body 10 is the drainage chamber 12. The front and rear walls of the balancing shaft two-way power valve plate 18 are fixedly mounted with rotating shafts 20. The balancing shaft two-way power valve plate 18 is rotatably connected between the pair of balancing brackets 21 via the rotating shafts 20. An observation port is opened on the upper wall of the water seal body 4, and the inner cover of the observation port is equipped with an inspection cover 29.

[0023] The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process. The specific operations are as follows.

[0024] Embodiment: According to the drawings in the specification, it can be seen that when in use, since the water seal boxes 1 on different floors have water flow and some floors do not flow, when the floors with water flow are drained through the second pipe 3, the pressure at the upper end of the pressure differential sealing device 30 in the water seal box 1 without water flow is greater than the pressure at the lower end, and there is a pressure difference between the upper and lower ends of the pressure sensing membrane (the pressure sensing membrane is made of high-elastic rubber material), and the pressure at the upper end of the pressure sensing membrane is greater than the pressure at the lower end. The pressure generated by the pressure difference acts on the pressure conductor 13, and the pressure conductor 13 generates downward pressure, thereby causing the lower end of the transmission connecting rod 14 to act on the upper end of the support rod 19 of the balance shaft two-way power valve plate 18. Since the arc surface at the lower end of the transmission connecting rod 14 contacts the arc surface at the upper end of the support rod 19, the balance shaft two-way power valve plate The rotating shaft 20 of 18 generates a resistance torque that prevents the opening and closing valve plate 23 from opening. When the opening and closing valve plate 23 of the balancing shaft two-way power valve plate 18 is under the negative pressure of the sewer line, there is also a pressure difference between its upper and lower ends. The pressure at the upper end is greater than the pressure at the lower end, thereby generating downward pressure, and also generating a torque to open the opening and closing valve plate 23. When the resistance torque of closing the opening and closing valve plate 23 is greater than or equal to the torque to open it, the balancing shaft two-way power valve plate 18 remains in a closed state, and the opening and closing valve plate 23 is tightly pressed against the sealing ring 24 of the main body 10. The second fixed magnetic core 26 and the second moving magnetic core 28 are attracted to prevent negative pressure from passing through, thereby preventing the water seal caused by the negative pressure in the sewer line from being destroyed. When positive pressure is generated or sewage overflows, the lower end of the opening and closing valve plate 23 of the balancing shaft two-way power valve plate 18 is in a closed state under the pressure (which is the principle of a check valve).

[0025] When draining, after the water flows through the grate 9, the water pressure acting on the pressure sensing membrane is less than the water pressure of the opening and closing valve plate 23. Therefore, the torque preventing the opening of the opening and closing valve plate 23 is less than the torque for opening the opening and closing valve plate 23. The balance shaft two-way power valve plate 18 opens to drain water. When the drainage stops, the balance shaft two-way power valve plate 18 is attracted by the second fixed magnetic core 26 and the second moving magnetic core 28, and the first fixed magnetic core 25 and the first moving magnetic core 27 repel each other, generating a torque that closes the opening and closing valve plate 23, and the opening and closing valve plate 23 is closed.

[0026] It should be noted that, in this document, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

Claims

1. A floor drain structure with a two-way valve plate and a balance shaft for maintenance on the same floor, which is resistant to positive and negative pressures, comprises a water seal box (1), characterized in that: The water seal box (1) is provided with a first pipe (2), and a second pipe (3) is provided on the water seal box (1) and located on one side of the first pipe (2). A water seal body (4) is fixedly installed in the water seal box (1), and the lower end and the side wall of the water seal body (4) are in an open structure. The open side wall of the water seal body (4) is in communication with the second pipe (3). The upper wall of the water seal body (4) is in an inclined structure. A nut (5) is fixedly installed on the upper end of the water seal box (1), and an eccentric opening is provided on the nut (5). An internal thread is provided in the eccentric opening. A threaded sleeve (6) is screwed into the eccentric opening. A carrier (7) is fixedly installed on the upper end of the threaded sleeve (6). The carrier (7) is fixedly installed with a carrier (8), the cross-section of the carrier (8) is a funnel-shaped structure, a pressure differential sealing device (30) is inserted into the funnel-shaped structure of the carrier (8), the upper end port cover of the carrier (7) is equipped with a grate (9), the pressure differential sealing device (30) includes a main body (10), a pressure conductor (13) and a balance shaft two-way power valve plate (18), characterized in that the main body (10) includes a pressure conduction chamber (11) and a drainage chamber (12), the pressure conduction chamber (11) is located on one side of the drainage chamber (12), the pressure conductor (13) is arranged in the pressure conduction chamber (11) of the main body (10), and the pressure conduction chamber (11) is provided with a pressure conductor (13) on the upper side of the pressure conduction chamber (18). The end of the pressure transmission chamber (11) is in an inclined slant surface structure, the upper end of the pressure transmission chamber (11) is provided with an opening, the upper end surface of the opening is provided with a pressure transmission membrane (16), the lower end of the pressure transmission membrane (16) contacts the upper wall surface of the pressure transmission body (13), the lower end of the pressure transmission body (13) is fixedly installed with a transmission connecting rod (14), the lower wall surface of the pressure transmission chamber (11) is fixedly installed with a limit bottom cover (17), the transmission connecting rod (14) passes through the limit bottom cover (17), the lower end of the transmission connecting rod (14) is in an inclined arc surface structure, the lower wall surface of the limit bottom cover (17) is fixedly installed with a pair of balance brackets (21), the balance shaft two-way power valve plate (18) is rotatably connected to the pair of A support rod (19) is fixedly installed on the upper wall of the left end of the balancing shaft two-way power valve plate (18) between the balancing brackets (21), and the upper end of the support rod (19) is an inclined arc surface structure. The lower end of the transmission connecting rod (14) is in contact with the upper end of the support rod (19). An opening and closing valve plate (23) is fixedly installed on the right end of the balancing shaft two-way power valve plate (18), and the opening and closing valve plate (23) is in contact with the lower end port of the drainage chamber (12). A magnetic core bracket (22) is fixedly installed between a pair of balancing brackets (21) and above the balancing shaft two-way power valve plate (18). A magnetic core power source is provided on the magnetic core bracket (22) and the balancing shaft two-way power valve plate (18).

2. The same-layer maintenance balance shaft two-way valve plate positive and negative pressure resistant floor drain structure according to claim 1 is characterized in that The pressure conductor (13), the pressure conductor membrane (16) and the limit cover plate are parallel to each other. A limit plate is fixedly installed on the lower wall of the pressure conductor (13) and located on one side of the transmission connecting rod (14). The limit plate is located in the pressure conductor cavity (11).

3. The same-layer maintenance balance shaft two-way valve plate positive and negative pressure resistant floor drain structure according to claim 1 is characterized in that An air pressure conducting hole (15) is provided on the lower wall of the limiting bottom cover (17) and located on one side of the transmission connecting rod (14).

4. The same-layer maintenance balance shaft bidirectional valve plate positive and negative pressure resistant floor drain structure according to claim 1 is characterized in that The magnetic core power source includes a first fixed magnetic core (25), a second fixed magnetic core (26), a first moving magnetic core (27) and a second moving magnetic core (28). The first fixed magnetic core (25) and the second fixed magnetic core (26) are fixedly mounted on the magnetic core bracket (22) from left to right, and the first moving magnetic core (27) and the second moving magnetic core (28) are fixedly mounted on the balance shaft bidirectional power valve plate (18) from left to right.

5. The same-layer maintenance balance shaft two-way valve plate positive and negative pressure resistant floor drain structure according to claim 1 is characterized in that The remaining portion of the pressure transmission chamber (11) formed by the main body (10) is the drainage chamber (12).

6. The same-layer maintenance balance shaft two-way valve plate positive and negative pressure resistant floor drain structure according to claim 1 is characterized in that The front and rear walls of both sides of the balancing shaft bidirectional power valve plate (18) are respectively fixedly mounted with rotating shafts (20), and the balancing shaft bidirectional power valve plate (18) is rotatably connected between a pair of balancing brackets (21) via the rotating shafts (20).

7. The same-layer maintenance balance shaft bidirectional valve plate positive and negative pressure resistant floor drain structure according to claim 1 is characterized in that The upper wall of the water seal body (4) is provided with an observation port, and the inner cover of the observation port is provided with an inspection cover (29).

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