CN117552499A - Building drainage riser tubular air pressure adjusting drainage device - Google Patents

Abstract

The utility model relates to a drainage device is adjusted to building drainage riser tubular atmospheric pressure belongs to building drainage technical field, and drainage device is adjusted to building drainage riser tubular atmospheric pressure is including being used for the intercommunication waste water on the drainage riser to collect water seal pipe and sewage collection pipe, be provided with the division board in the waste water collection water seal pipe, be provided with the sewage closing cap on the sewage collection pipe, the division board is close to the one side of drainage riser and articulates there is the first one-way hanging door that is used for opening and close the apopore on the division board, first one-way hanging door is provided with the sealing member that is used for reinforcing the leakproofness between first one-way hanging door and the division board, one side that the sewage closing cap is close to the drainage riser articulates there is the one-way regulating door that is used for opening and close the drain on the sewage closing cap, one side that the sewage is close to the drainage riser articulates there is second one-way hanging door, one-way regulating door is located between second one-way hanging door and the sewage closing cap. This application has the effect that makes the foul smell be difficult for returning indoor and cause the pollution.

Description

Building drainage riser tubular air pressure adjusting drainage device

Technical Field

The application relates to the technical field of building drainage, in particular to a tubular air pressure adjusting drainage device of a building drainage vertical pipe.

Background

At present, drainage of high-rise buildings is mainly carried out through a drainage vertical pipe, and in the process of mixing and discharging liquid and gas in the drainage vertical pipe, the air pressure fluctuation in the drainage vertical pipe is easy to be severe due to the reasons of increasing the number of layers of the building, increasing the discharge flow and the like. In order to alleviate the problem caused by the air pressure fluctuation in the drainage vertical pipe, an air pressure adjusting drainage device is usually required to be arranged for adjustment.

In the related art, as disclosed in chinese patent document with publication number CN202273288U, a building drainage riser pipe type air pressure adjusting drainage device comprises a riser pipe nipple, wherein one side of the riser pipe nipple is communicated with a waste water collecting water seal pipe, the other side is communicated with a waste water collecting pipe, the waste water collecting water seal pipe is provided with a waste water seal cover, a partition plate is arranged in the waste water collecting water seal pipe, a drain hole is formed in the partition plate, one side of the partition plate is communicated with a water seal bent pipe, and the other side of the partition plate is hinged with a drain hole unidirectional sealing hanging door; the pipe orifice of the sewage collecting pipe is provided with a sewage sealing cover, a sewage outlet is arranged on the sewage sealing cover, and the inner side of the sewage sealing cover is hinged with a sewage outlet one-way sealing hanging door. When positive pressure is generated in the building vertical pipe, the one-way sealing hanging door of the drain hole and the one-way sealing hanging door of the drain outlet are closed; when negative pressure is generated in the building vertical pipe, the one-way sealing hanging door of the drain hole and the one-way sealing hanging door of the drain outlet are opened under the suction effect generated by the negative pressure, water is sucked to the short joint of the vertical pipe to be discharged, and then air is rapidly supplemented into the building vertical pipe from the waste water collecting water sealing pipe and the sewage collecting pipe.

With respect to the related art, when negative pressure is generated in the building vertical pipe, water in the appliance elbow pipe connected with the waste water collecting water seal pipe and the sewage collecting pipe and water in the water trap is sucked to the vertical pipe nipple to be discharged, and when positive pressure is applied next time, odor in the vertical pipe nipple is sucked and discharged due to the fact that the water in the elbow pipe or the water trap of the appliance is sucked and discharged, the odor is easy to return to the room from the gap between the drain hole one-way sealing hanging door and the partition plate and the gap between the sewage drain one-way sealing hanging door and the sewage sealing cover.

Disclosure of Invention

In order to facilitate the odor not to return to the room easily to cause pollution, the application provides a tubular air pressure adjusting and draining device of a building drainage vertical pipe.

The application provides a building drainage riser tubular atmospheric pressure adjusts drainage device adopts following technical scheme:

the utility model provides a building drainage riser tubular atmospheric pressure adjusts drainage device, is including being used for the intercommunication waste water collection water seal pipe and the sewage collection pipe on the drainage riser, be provided with the division board in the waste water collection water seal pipe, be provided with the sewage closing cap on the sewage collection pipe, the division board is close to the one side of drainage riser and articulates there is the first one-way hanging door that is used for opening and close the apopore on the division board, first one-way hanging door is provided with the sealing member that is used for strengthening the leakproofness between first one-way hanging door and the division board, the sewage closing cap is close to the one side of drainage riser and articulates there is the one-way regulating door that is used for opening and close the drain on the sewage closing cap, the sewage closing cap is close to the one side of drainage riser and articulates there is the one-way hanging door of second, be provided with drive assembly on the one-way regulating door, drive assembly is used for making one-way regulating door drive second one-way hanging door equidirectional rotation when rotating.

Preferably, the one-way regulating door is provided with a rotating shaft in a penetrating way, the rotating shaft rotates on one side of the sewage sealing cover, which is close to the drainage vertical pipe, the transmission assembly comprises a worm arranged on the rotating shaft, a worm wheel arranged on the sewage sealing cover in a rotating way and a transmission piece arranged on the worm wheel, the worm is meshed with the worm wheel, and the transmission piece is used for driving the second one-way hanging door to rotate when the worm wheel rotates.

Preferably, the transmission piece comprises a winding drum coaxially connected to the worm wheel and a connecting rope wound on the winding drum, the worm wheel and the winding drum are located between the sewage sealing cover and the second one-way hanging door, one end of the connecting rope, far away from the winding drum, is arranged on the second one-way hanging door, and when the one-way regulating door rotates towards the direction far away from the sewage outlet, the worm wheel drives the winding drum to rotate to unreel the connecting rope.

Preferably, one side of the sewage sealing cover, which is close to the one-way regulating door, is provided with a protective cover, the worm wheel is rotationally arranged in the protective cover, the worm and the winding drum are positioned in the protective cover, the rotating shaft is rotationally arranged on the protective cover in a penetrating mode, and the connecting rope is arranged on the protective cover in a sliding mode.

Preferably, the sealing member comprises a sealing ring arranged on one side of the first one-way hanging door close to the partition plate, and the sealing ring is arranged along the circumferential direction of the drain hole.

Preferably, an air bag is arranged on one side of the partition plate, which is close to the first one-way hanging door, the air bag is arranged along the circumference of the drain hole, and an inflation assembly for inflating the air bag is arranged on the partition plate.

Preferably, the inflation assembly comprises an inflation channel arranged on one side of the separation plate close to the air bag, a piston arranged in the inflation channel in a sliding manner, a spring arranged on the inflation channel and a pushing piece arranged on the separation plate, wherein the inflation channel is communicated with the air bag, the spring is used for pushing the piston to slide towards a direction away from the communication position of the inflation channel and the air bag, and the pushing piece is used for pushing the piston to slide towards a direction close to the communication position of the inflation channel and the air bag.

Preferably, the pushing piece comprises a push rod arranged on the piston, a first connecting rod hinged on the push rod and a second connecting rod hinged on the first connecting rod, the push rod is arranged on one side of the piston away from the inflation channel, the second connecting rod is hinged on one side of the first connecting rod away from the push rod, one end of the second connecting rod away from the first connecting rod is hinged on the partition plate, the hinge axes of the first connecting rod and the second connecting rod are parallel to the hinge axis of the first unidirectional hanging door, and the hinge positions of the first connecting rod and the second connecting rod are located on one side of the partition plate close to the first unidirectional hanging door.

Preferably, when the sealing ring of the first one-way hanging door is abutted against the partition plate, the air bag and the inflating channel are both positioned in the sealing ring.

Preferably, the inflation channel is located below the drain hole.

In summary, the present application includes the following beneficial technical effects:

when negative pressure is generated in the drainage vertical pipe, the one-way regulating door is not easy to rotate under the protection of the second one-way hanging door and is not easy to be sucked by the negative pressure, so that the second one-way hanging door can not rotate, the sealing state of a sewage outlet is further ensured, water in a device trap connected with the sewage collecting pipe is not easy to be sucked by the negative pressure and discharged, and the water in the trap is ensured; the first one-way hanging door rotates in the direction away from the drain hole under the suction effect generated by negative pressure, water in the wastewater collection water seal pipe is sucked to the drain vertical pipe to be discharged, then air is supplemented into the building vertical pipe from the wastewater collection water seal pipe, the air supplementing and pressure regulating effect is achieved, when positive pressure is met next time, the first one-way hanging door is abutted with the partition plate under the action of air pressure, the drain hole is sealed, the tightness between the first one-way hanging door and the partition plate is enhanced through the sealing piece, so that odor is not easy to enter a room from a gap between the first one-way hanging door and the partition plate, and the odor is not easy to enter the room from a gap between the regulating plate and the sewage seal cover due to water in an appliance trap connected with the sewage collection pipe, so that the odor is also not easy to reduce indoor odor returning pollution.

Drawings

Fig. 1 is a cross-sectional view of the overall structure of an embodiment of the present application.

Fig. 2 is a cross-sectional view of the overall structure of the sewage header in an embodiment of the present application.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Fig. 4 is a cross-sectional exploded view of the overall structure of a wastewater collection water seal in an embodiment of the present application.

Fig. 5 is an enlarged view of a portion B in fig. 4.

Reference numerals illustrate: 1. a wastewater collection water seal pipe; 2. a sewage header; 3. a partition plate; 4. a sewage cover; 5. a first one-way overhead door; 6. a one-way adjustment door; 7. a second one-way overhead door; 71. a fixed frame; 72. a fixing plate; 8. a rotating shaft; 9. a worm; 10. a worm wheel; 11. a reel; 12. a connecting rope; 13. a protective cover; 14. a seal ring; 15. an air bag; 16. an inflation assembly; 161. an inflation channel; 162. a piston; 163. a spring; 164. a pushing member; 1641. a push rod; 1642. a first link; 1643. a second link; 17. and a mounting groove.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-5.

The embodiment of the application discloses a building drainage riser tubular air pressure adjusting drainage device. Referring to fig. 1, the building drainage riser pipe type air pressure adjusting drainage device comprises a waste water collecting water seal pipe 1 and a waste water collecting pipe 2 which are communicated with each other on the drainage riser, wherein the waste water collecting water seal pipe 1 and the waste water collecting pipe 2 are respectively located on two opposite sides of the drainage riser, a partition plate 3 is fixedly arranged in the waste water collecting water seal pipe 1, a drainage hole is formed in the partition plate 3, a sewage seal cover 4 is fixedly arranged at a pipe orifice of one side, far away from the drainage riser, of the waste water collecting pipe 2, and a sewage drain is formed in the sewage seal cover 4.

Referring to fig. 1, a first one-way hanging door 5 for opening and closing a drain hole is hinged to one side of a partition plate 3 close to a drain vertical pipe, a hinge axis of the first one-way hanging door 5 is perpendicular to the length direction of the drain vertical pipe, a hinge axis of the first one-way hanging door 5 is located above the drain hole, and a sealing element for enhancing sealing performance between the first one-way hanging door 5 and the partition plate 3 is arranged on one side of the first one-way hanging door 5 close to the drain hole.

Referring to fig. 1 and 2, a one-way regulating door 6 for opening and closing a drain outlet is hinged to one side of the sewage cover 4 close to the drain vertical pipe, a rotating shaft 8 is fixedly arranged on the one-way regulating door 6 in a penetrating manner, the rotating shaft 8 rotates on one side of the sewage cover 4 close to the drain vertical pipe, the rotating shaft 8 is perpendicular to the length direction of the drain vertical pipe, the rotating shaft 8 is positioned above the drain outlet, a second one-way hanging door 7 is hinged to one side of the sewage cover 4 close to the drain vertical pipe, the second one-way hanging door 7 comprises a fixed frame 71 and a fixed plate 72, the fixed frame 71 is hinged to one side of the sewage cover 4 close to the drain vertical pipe, the cross section of the fixed frame 71 is rectangular, the hinge axis of the fixed frame 71 is parallel to the rotating shaft 8, the hinge axis of the fixed frame 72 is positioned above the rotating shaft 8, the fixed plate 72 is integrally formed on one side of the fixed frame 71 close to the drain vertical pipe, the cross section of the fixed plate 72 is larger than the one-way regulating door 6, the one-way regulating door 6 is positioned between the fixed plate 72 and the sewage cover 4, and the one-way regulating door 6 is positioned in the fixed frame 71, so that the second one-way hanging door 7 can shelter the one-way regulating door 6; the unidirectional regulating door 6 is provided with a transmission component, and the transmission component is used for driving the fixed frame 71 to rotate in the same direction when the unidirectional regulating door 6 rotates.

When domestic wastewater is discharged into the wastewater collection water seal pipe 1 through the wastewater access pipe, the domestic wastewater flows into the drain hole, the first one-way hanging door 5 rotates towards a direction away from the drain hole under the action of water pressure, and the drain hole is opened, so that the wastewater is discharged into the drain vertical pipe; when the closestool drains, sewage flows into the sewage outlet, the unidirectional regulating door 6 rotates towards the direction away from the sewage outlet under the action of water pressure, and the fixed frame 71 is driven by the transmission assembly to drive the fixed plate 72 to rotate towards the direction away from the sewage outlet to open the sewage outlet, so that sewage is discharged into the drainage vertical pipe. When the positive pressure is generated in the drainage vertical pipe, the first one-way hanging door 5 seals the drainage hole, a gap between the first one-way hanging door 5 and the partition plate 3 is effectively sealed through the sealing piece, the second one-way hanging door 7 and the one-way adjusting door 6 seal the drain, and meanwhile, under the action of water seal or trap water of the connecting device, air pressure and sewage in the drainage vertical pipe are not easy to enter a room.

When negative pressure is generated in the drainage vertical pipe, the second one-way hanging door 7 shields the one-way adjusting door 6, so that the one-way adjusting door 6 is not easy to rotate under the action of negative pressure suction, the second one-way hanging door 7 is not rotated, the sealing state of a sewage outlet is further ensured, water in a water trap of an appliance connected with the sewage collecting pipe 2 is not easy to be pumped and drained under the negative pressure, and the water in the water trap is ensured; the first one-way hanging door 5 rotates in a direction away from the drain hole under the suction effect generated by negative pressure, water in the wastewater collection water seal pipe 1 is sucked to the drain vertical pipe for discharge, then air is supplemented into the drain vertical pipe from the wastewater collection water seal pipe 1, the air supplementing and pressure regulating effect is achieved, when positive pressure is met next time, the first one-way hanging door 5 is abutted with the partition plate 3 under the action of air pressure, the drain hole is sealed, a gap between the first one-way hanging door 5 and the partition plate 3 is effectively sealed through a sealing piece, so that odor is not easy to enter a room from the gap between the first one-way hanging door 5 and the partition plate 3, and water is not easy to enter the room from the gap between the one-way regulating door 6 and the sewage seal cover 4 due to the fact that water is arranged in a trap connected with the sewage collection pipe 2, and the odor is not easy to enter the room, so that indoor odor is favorable for reducing indoor odor return pollution.

Referring to fig. 1 and 3, in order to facilitate the rotation of the one-way adjustment door 6 to drive the fixed frame 71 to rotate, a protecting cover 13 is fixed on one side of the sewage cover 4 close to the one-way adjustment door 6, the protecting cover 13 is located in the fixed frame 71, the protecting cover 13 is located on the side edge of the upper end of the one-way adjustment door 6, the rotating shaft 8 is rotatably arranged on the protecting cover 13, the transmission component comprises a worm 9, a worm wheel 10 and a transmission piece, the worm 9 is coaxially fixed on one end of the rotating shaft 8 close to the protecting cover 13, the worm 9 is located in the protecting cover 13, the worm wheel 10 is rotatably arranged in the protecting cover 13, the rotation axis of the worm wheel 10 is parallel to the length direction of the drainage vertical pipe, the worm wheel 10 is located on one side of the worm 9 far from the sewage cover 4, the worm 9 is meshed with the worm wheel 10, the transmission piece is arranged on the worm wheel 10, and the transmission piece is used for driving the second one-way hanging door 7 to rotate when the worm wheel 10 rotates.

Referring to fig. 1 and 3, in order to facilitate the rotation of the worm wheel 10 to drive the second one-way hanging door 7 to rotate in a direction approaching or separating from the sewage outlet, the transmission member comprises a winding drum 11 and a connecting rope 12, the winding drum 11 is coaxially and fixedly connected below the worm wheel 10, the winding drum 11 is positioned in the protective cover 13, the worm wheel 10 and the winding drum 11 are positioned between the sewage cover 4 and the second one-way hanging door 7, one end of the connecting rope 12 is wound on the winding drum 11, the other end of the connecting rope 12 slides through the protective cover 13 and is fixed on one side of the fixed plate 72, which is close to the one-way regulating door 6, and when the one-way regulating door 6 rotates in a direction separating from the sewage outlet, the worm wheel 10 drives the winding drum 11 to rotate to unwind the connecting rope 12; when the one-way regulating door 6 is abutted against the sewage cover 4, the connecting rope 12 is in a tensioning state, and the fixed frame 71 is abutted against the sewage cover 4.

When the closestool drains, sewage flows into the drain, the unidirectional regulating door 6 rotates towards the direction away from the drain under the action of water pressure, and as a certain distance is reserved between the unidirectional regulating door 6 and the fixed plate 72, space is provided for the unidirectional regulating door 6 to rotate, then the rotating shaft 8 drives the worm 9 to rotate, the worm 9 drives the worm wheel 10 to rotate, the worm wheel 10 drives the winding drum 11 to rotate to unwind the connecting rope 12, the tension of the connecting rope 12 to the fixed plate 72 is reduced, then the fixed frame 71 drives the fixed plate 72 to rotate towards the direction away from the drain under the pushing of the unidirectional regulating door 6, the drain is opened, and sewage is discharged into the drain riser.

When negative pressure is generated in the drainage vertical pipe, the second one-way hanging door 7 protects and shields the one-way regulating door 6, the one-way regulating door 6 cannot rotate under the action of negative pressure suction, the worm wheel 10 and the worm 9 are meshed to have the self-locking function, the worm wheel 10 cannot drive the worm 9 to rotate, and therefore when the one-way regulating door 6 does not rotate, the second one-way hanging door 7 cannot rotate, the sealing state of a sewage outlet is ensured, water in an appliance trap connected with the sewage collecting pipe 2 is not easily discharged under the action of negative pressure suction, and the water in the trap is ensured; when the positive pressure is encountered next time, the odor is not easy to enter the room from the gap between the one-way adjusting door 6 and the sewage sealing cover 4 due to the water in the water trap of the device connected with the sewage collecting pipe 2, thereby being beneficial to reducing the indoor odor returning pollution.

Referring to fig. 4 and 5, in order to facilitate enhancement of sealability between the first one-way hanger 5 and the partition plate 3, the sealing member includes a sealing ring 14 adhered to a side of the first one-way hanger 5 near the partition plate 3, the sealing ring 14 is disposed along a circumference of the drain hole, and the sealing ring 14 may be one of a rubber ring and a plastic ring.

When producing the malleation in the drainage riser, first one-way overhead door 5 is close to division board 3 under the atmospheric pressure effect, makes sealing washer 14 and division board 3 butt, seals the wash port, and the setting of sealing washer 14 helps reinforcing leakproofness, makes the foul smell be difficult for getting into indoor from the clearance between first one-way overhead door 5 and the division board 3, effectively reduces indoor return odor pollution.

Referring to fig. 4 and 5, an air bag 15 for abutting against the first one-way hanger 5 is mounted on one side of the partition plate 3 close to the drain riser, the air bag 15 is arranged along the circumference of the drain hole, an air inflation assembly 16 for inflating the air bag 15 is arranged on the partition plate 3, a mounting groove 17 is formed on one side of the partition plate 3 close to the first one-way hanger 5 for inflating the air bag 15, the mounting groove 17 is positioned below the air bag 15, the length direction of the mounting groove 17 is parallel to the length direction of the drain riser, the air inflation assembly 16 comprises an inflation channel 161, a piston 162, a spring 163 and a pushing member 164, the inflation channel 161 is embedded on one side of the partition plate 3 close to the air bag 15, the inflation channel 161 is positioned above the mounting groove 17 and is communicated with the mounting groove 17, the length direction of the inflation channel 161 is parallel to the length direction of the mounting groove 17, the upper end of the inflation channel 161 is communicated with the air bag 15, the piston 162 is slidably arranged in the inflation channel 161, the outer wall of the piston 162 abuts against the inner wall of the inflation channel 161, the spring 163 is arranged on the inflation channel 161, the spring 163 is used for pushing the piston 162 to slide in a direction away from the connection of the inflation channel 161 and the air bag 15, the pushing member 164 is slidably arranged in the direction of the pushing member 164 is used for pushing the piston 162 to slide towards the connection of the air bag 15.

Referring to fig. 4 and 5, in order to facilitate sliding of the pushing member 164 toward the direction near the connection of the inflation channel 161 with the airbag 15, the pushing member 164 includes a push rod 1641, a first link 1642 and a second link 1643, the push rod 1641 is fixed to the side of the piston 162 near the mounting groove 17, the push rod 1641 extends out of the inflation channel 161, the push rod 1641 is positioned in the mounting groove 17, a spring 163 is sleeved on the push rod 1641, one end of the spring 163 is fixedly connected to the inflation channel 161, the other end is fixedly connected to the side of the push rod 1641 away from the piston 162, one end of the first link 1642 is hinged to the side of the push rod 1641 away from the piston 162, the other end is hinged to the end of the second link 1643, one end of the second connecting rod 1643 far away from the first connecting rod 1642 is hinged to one side of the mounting groove 17 far away from the air bag 15, the hinge axes of the first connecting rod 1642 and the second connecting rod 1643 are parallel to the hinge axis of the first one-way hanging door 5, one end of the second connecting rod 1643 close to the first connecting rod 1642 is inclined towards the direction close to the first one-way hanging door 5, the hinge position of the first connecting rod 1642 and the second connecting rod 1643 is located outside the mounting groove 17, namely, the hinge position of the first connecting rod 1642 and the second connecting rod 1643 is located on one side of the partition plate 3 close to the first one-way hanging door 5, and when the sealing ring 14 of the first one-way hanging door 5 abuts against the partition plate 3, the air bag 15, the inflating channel 161 and the mounting groove 17 are all located in the sealing ring 14, so that double sealing is facilitated.

When positive pressure is generated in the drainage vertical pipe, the first one-way hanging door 5 is close to the partition plate 3 under the action of air pressure, the first one-way hanging door 5 presses the hinged position of the first connecting rod 1642 and the second connecting rod 1643 to drive the first connecting rod 1642 to move towards the direction close to the mounting groove 17, so that the first connecting rod 1642 pushes the push rod 1641 to move upwards, the push rod 1641 pushes the piston 162 to slide towards the direction close to the communication position of the inflation channel 161 and the air bag 15, the compression spring 163 expands the air bag 15, fills the gap between the first one-way hanging door 5 and the partition plate 3, further enhances the tightness, ensures that odor is not easy to enter a room from the gap between the first one-way hanging door 5 and the partition plate 3, and effectively reduces indoor odor returning pollution; the inflation channel 161 is located below the water discharge opening and effectively seals the gap where the first one-way hanger 5 is hinged to the partition plate 3.

The implementation principle of the embodiment of the application is as follows: when domestic wastewater is discharged into the wastewater collection water seal pipe 1 through the wastewater inlet pipe, the domestic wastewater flows into the drain hole, the first one-way hanging door 5 rotates towards a direction away from the drain hole under the action of water pressure, at the moment, under the pushing action of the spring 163, the push rod 1641 drives the piston 162 to move towards a direction away from the air bag 15, the hinged part of the first connecting rod 1642 and the second connecting rod 1643 is ejected, and the wastewater is discharged into the drain vertical pipe along with the opening of the drain hole; when the closestool drains, sewage flows into the sewage outlet, the unidirectional regulating door 6 rotates towards the direction away from the sewage outlet under the action of water pressure, then the rotating shaft 8 drives the worm 9 to rotate, the worm 9 drives the worm wheel 10 to rotate, the worm wheel 10 drives the winding drum 11 to rotate to unwind the connecting rope 12, the tension of the connecting rope 12 to the fixed plate 72 is reduced, then the fixed plate 72 drives the fixed frame 71 to rotate towards the direction away from the sewage outlet under the pushing of the unidirectional regulating door 6, and the sewage outlet is opened, so that sewage is discharged into the drainage stand pipe.

When positive pressure is generated in the drainage vertical pipe, the first one-way hanging door 5 is pushed under the action of air pressure to enable the sealing ring 14 to be in butt joint with the partition plate 3, meanwhile, the first one-way hanging door 5 presses the hinge joint of the first connecting rod 1642 and the second connecting rod 1643 to drive the first connecting rod 1642 to move towards the direction close to the mounting groove 17, so that the first connecting rod 1642 pushes the push rod 1641 to move upwards, the push rod 1641 pushes the piston 162 to slide towards the direction close to the communication position of the inflation channel 161 and the air bag 15, the air bag 15 is inflated, and a gap between the first one-way hanging door 5 and the partition plate 3 is filled, and the sealing performance is effectively enhanced; meanwhile, the second one-way hanging door 7 and the one-way adjusting door 6 close the sewage outlet, and under the action of water seal or trap water of the connecting device, the air pressure and sewage in the drainage vertical pipe are not easy to enter the room.

When negative pressure is generated in the drainage vertical pipe, the second one-way hanging door 7 protects and shields the one-way adjusting door 6, the one-way adjusting door 6 cannot rotate under the action of negative pressure suction, the worm wheel 10 and the worm 9 are meshed to have a self-locking effect, the worm wheel 10 cannot drive the worm 9 to rotate, and therefore when the one-way adjusting door 6 does not rotate, the second one-way hanging door 7 cannot rotate, the sealing state of a sewage outlet is ensured, and water in a trap of an appliance cannot be easily discharged under the action of negative pressure suction; the first one-way hanging door 5 rotates in a direction away from the drain hole under the suction effect generated by negative pressure, the water in the waste water collecting water seal pipe 1 is sucked to the drain vertical pipe for discharge, and then air is supplemented into the building vertical pipe from the waste water collecting water seal pipe 1, so that the air supplementing and pressure regulating effects are achieved. When the sewage is subjected to positive pressure next time, the odor is not easy to enter the room from the gap between the one-way regulating door 6 and the sewage sealing cover 4 due to the water in the water trap of the device connected with the sewage collecting pipe 2; the gap between the first one-way hanging door 5 and the partition plate 3 is effectively sealed under the action of the sealing ring 14 and the air bag 15, so that odor is not easy to enter the room from the gap between the first one-way hanging door 5 and the partition plate 3, and further the indoor odor returning pollution is reduced.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (10)

1. The utility model provides a building drainage riser tubular atmospheric pressure adjusts drainage device, is including being used for the intercommunication waste water collection water seal pipe (1) and sewage collection pipe (2) on the drainage riser, be provided with division board (3) in waste water collection water seal pipe (1), be provided with sewage closing cap (4), its characterized in that on sewage collection pipe (2): one side that division board (3) is close to drainage riser articulates there is first one-way hanging door (5) that are used for opening and close the apopore on division board (3), first one-way hanging door (5) are provided with the sealing member that is used for strengthening between first one-way hanging door (5) and division board (3), one side that sewage closing cap (4) is close to drainage riser articulates there is one-way regulating door (6) that are used for opening and close drain on sewage closing cap (4), one side that sewage closing cap (4) is close to drainage riser articulates there is second one-way hanging door (7), one-way regulating door (6) are located between second one-way hanging door (7) and sewage closing cap (4), be provided with drive assembly on one-way regulating door (6), drive second one-way hanging door (7) syntropy when drive assembly is used for making one-way regulating door (6) rotate.

2. A building drainage riser pipe air pressure regulating drainage apparatus as defined in claim 1 wherein: the one-way regulating door is characterized in that a rotating shaft (8) is arranged on the one-way regulating door (6) in a penetrating manner, the rotating shaft (8) rotates on one side, close to the drainage vertical pipe, of the sewage sealing cover (4), the transmission assembly comprises a worm (9) arranged on the rotating shaft (8), a worm wheel (10) arranged on the sewage sealing cover (4) in a rotating manner and a transmission piece arranged on the worm wheel (10), the worm (9) is meshed with the worm wheel (10), and the transmission piece is used for driving the second one-way hanging door (7) to rotate when the worm wheel (10) rotates.

3. A building drainage riser pipe air pressure regulating drainage apparatus as claimed in claim 2 wherein: the transmission piece comprises a winding drum (11) coaxially connected to the worm wheel (10) and a connecting rope (12) wound on the winding drum (11), the worm wheel (10) and the winding drum (11) are located between the sewage sealing cover (4) and the second one-way hanging door (7), one end, far away from the winding drum (11), of the connecting rope (12) is arranged on the second one-way hanging door (7), and when the one-way regulating door (6) rotates towards the direction far away from the sewage outlet, the worm wheel (10) drives the winding drum (11) to rotate to unreel the connecting rope (12).

4. A building drainage riser pipe air pressure regulating drainage apparatus according to claim 3, wherein: one side that sewage closing cap (4) are close to unidirectional adjustment door (6) is provided with protection casing (13), worm wheel (10) rotate and set up in protection casing (13), worm (9) and reel (11) are located protection casing (13), pivot (8) rotate and wear to establish on protection casing (13), connect rope (12) slip to wear to establish on protection casing (13).

5. A building drainage riser pipe air pressure regulating drainage apparatus according to any one of claims 1 to 4, wherein: the sealing piece comprises a sealing ring (14) arranged on one side of the first one-way hanging door (5) close to the partition plate (3), and the sealing ring (14) is arranged along the circumferential direction of the drain hole.

6. The building drainage riser pipe air pressure regulating drainage apparatus of claim 5, wherein: one side of division board (3) is close to first one-way overhead door (5) is provided with gasbag (15), gasbag (15) are along the circumference setting of wash port, division board (3) are provided with and are used for inflatable subassembly (16) to gasbag (15).

7. The building drainage riser pipe air pressure regulating drainage apparatus of claim 6, wherein: the inflation assembly (16) comprises an inflation channel (161) arranged on one side of the separation plate (3) close to the air bag (15), a piston (162) arranged in the inflation channel (161) in a sliding manner, a spring (163) arranged on the inflation channel (161) and a pushing piece (164) arranged on the separation plate (3), the inflation channel (161) is communicated with the air bag (15), the spring (163) is used for pushing the piston (162) to slide towards a direction away from the communication position of the inflation channel (161) and the air bag (15), and the pushing piece (164) is used for pushing the piston (162) to slide towards a direction close to the communication position of the inflation channel (161) and the air bag (15).

8. A building drainage riser pipe air pressure regulating drainage apparatus as defined in claim 7 wherein: the pushing piece (164) comprises a push rod (1641) arranged on the piston (162), a first connecting rod (1642) hinged on the push rod (1641) and a second connecting rod (1643) hinged on the first connecting rod (1642), the push rod (1641) is arranged on one side, far away from the inflation channel (161), of the piston (162), the second connecting rod (1643) is hinged on one side, far away from the push rod (1641), of the first connecting rod (1642), one end, far away from the first connecting rod (1642), of the second connecting rod (1643) is hinged on the separation plate (3), the hinge axes of the first connecting rod (1642) and the second connecting rod (1643) are all parallel to the hinge axis of the first one-way hanging door (5), and the hinge position of the first connecting rod (1642) and the second connecting rod (1643) is located on one side, close to the first one-way hanging door (5), of the separation plate (3).

9. A building drainage riser pipe air pressure regulating drainage apparatus as defined in claim 7 wherein: when the sealing ring (14) of the first one-way hanging door (5) is abutted with the partition plate (3), the air bag (15) and the inflation channel (161) are both positioned in the sealing ring (14).

10. A building drainage riser pipe air pressure regulating drainage apparatus as defined in claim 7 wherein: the inflation channel (161) is positioned below the drain hole.