CN216552253U - Reducing type vacuum transition tank - Google Patents

Abstract

The utility model relates to a vacuum sewage system technical field discloses a vacuum transition jar of undergauge formula, and the upper portion intercommunication of above-mentioned vacuum transition jar has vacuum generating device and advances dirty pipe, the lower part and the dirty case intercommunication of vacuum transition jar, its characterized in that, the formula structure is inhaled for the chamber to the vacuum transition jar, and the lower part of vacuum transition jar is undergauge formula structure, and the lower extreme of indentation formula structure is equipped with the drain, is equipped with movable bottom valve on the drain, and the filth passes through the drain inflow dirty incasement. The area of the sewage draining outlet is reduced through the reducing structure, so that the weight of the bottom valve is reduced, and the vacuumizing adsorption force of the vacuum generating device enables the bottom valve to tightly cover the sewage draining outlet so as to ensure the sealing performance of a bottom valve of the vacuum transition tank.

Description

Reducing type vacuum transition tank

Technical Field

The utility model relates to the technical field of vacuum sewage systems, in particular to a reducing type vacuum transition tank.

Background

The vacuum sewage discharge system generates air pressure difference through the toilet flushing system and sucks the sewage in the toilet into the sewage tank in an air suction mode so as to achieve the purpose of reducing the use of toilet flushing water, and the vacuum transition tank is used as one part of the vacuum sewage discharge system and is used for communicating the toilet sewage inlet pipe, the vacuum suction device and the sewage tank and sucking the sewage into the sewage tank from the toilet sewage inlet pipe through the vacuum suction device and discharging the sewage into the sewage tank. In the prior art, as shown in fig. 1, the device comprises a container 1 connected with a toilet bowl sewage inlet pipe 4, a normally closed sewage discharge port 5 which can be opened by the gravity of waste water generated by one-time defecation is arranged at the bottom of the container 1, a normally closed bottom valve 6 is arranged at the lower end of the sewage discharge port 5, the sewage discharge port 5 is connected with a waste water storage tank 2 arranged on the spot, an air draft combination 3 is arranged at the top of the container 1, and negative pressure can be formed in the container 1 by opening the air draft combination 3 for a short time, so that the waste water in the toilet bowl can be driven to be discharged to the waste water storage tank 2 through the container 1. This patent has set up the container that the intercommunication was pulled out the wind combination, and the container is connected with the stool pot drain, and the lower extreme of drain 5 is equipped with the bottom valve, and filth accessible container flows into in the waste water storage tank. However, this patent has the following problems:

1. the container in this patent is the cylindricality container that the internal diameter equals about for, and the diameter of its bottom valve only can close the container under the condition that is not less than the container internal diameter, leads to the weight of bottom valve big and makes the bottom valve because the dead weight is too big, can't be tight with container lower extreme lid.

2. After the filth gets into the container in from advancing dirty pipe, when the filth will directly strike the inner wall of container on, the filth remains on the container inner wall easily, and the filth of not being convenient for is discharged, influences the blowdown effect.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a reducing type vacuum transition tank which is of a cavity suction type structure, the vacuum transition tank is communicated with a sewage inlet pipe, a vacuum generating device and a sewage tank, the vacuum transition tank is of a reducing type structure at the lower part, a bottom valve is connected to a sewage draining exit, the area of the sewage draining exit at the lower end of the vacuum transition tank is reduced through the reducing type structure, the weight of the bottom valve on the sewage draining exit is further reduced, and the vacuumizing adsorption force of the vacuum generating device can enable the bottom valve to tightly cover the sewage draining exit so as to ensure the sealing performance of the bottom valve of the vacuum transition tank.

In order to achieve the purpose, the utility model provides the following technical scheme: the upper portion intercommunication of vacuum transition jar has vacuum generating device and advances dirty pipe, and the lower part and the dirty case intercommunication of vacuum transition jar, vacuum transition jar inhale the formula structure for the chamber, and the vacuum transition jar inhales the formula structure for the chamber, and the vacuum transition jar includes epicoele and cavity of resorption, and the cavity of resorption of vacuum transition jar is the undergauge formula structure, and the lower extreme of indentation formula structure is equipped with the drain, is equipped with movable bottom valve on the drain, and the filth flows into in the dirty case through the drain.

The technical effects are as follows: in the scheme, when the vacuum generating device works, the vacuum adsorption force can upwards adsorb the bottom valve so that the bottom valve tightly covers the sewage discharge outlet; if the weight of the bottom valve is large, the vacuum adsorption force cannot upwards adsorb the bottom valve, so that the bottom valve cannot be tightly covered; or after the bottom valve is tightly covered, the adsorption force of the vacuum generating device can not enable the bottom valve to be tightly closed on the sewage discharge port, so that a gap is formed between the bottom valve and the sewage discharge port; thereby affecting the sealing performance of the vacuum transition tank and ensuring that vacuum negative pressure cannot be formed in the vacuum transition tank; meanwhile, the vacuum transition tank with the combined structure reduces the processing difficulty, the upper cavity and the lower cavity are more convenient to demould than the integrated structure, the combined structure is also convenient for part maintenance and part replacement, and the vacuum transition tank with the integrated structure has stronger universality.

Preferably, the volume of the vacuum transition tank is 1.5-3 times of the full water volume of the toilet bowl. The vacuum transition tank can be ensured to contain the dirt sucked in the toilet stool, and the blockage of the vacuum transition tank is prevented.

Preferably, the reducing structure is a reducing conical barrel, the inner diameter of the conical barrel is gradually reduced from top to bottom, the lower end of the conical barrel is a sewage draining outlet, the bottom valve is movably arranged on the sewage draining outlet, and the weight of the bottom valve is matched with the vacuum suction force of the vacuum generating device. The internal diameter of conical barrel is from last to diminishing down gradually, so the internal diameter of the lower extreme of conical barrel is less for the internal diameter of the drain of conical barrel lower extreme is less, thereby it is less with the weight of assorted bottom valve, can be adsorbed the lid and tightly on the drain, guarantees the leakproofness of vacuum transition jar.

Preferably, an included angle β between an extension line of the inclined wall of the conical barrel and the axial center line L of the vacuum transition tank is: beta is more than or equal to 30 degrees and less than or equal to 60 degrees. When the included angle β is too large, for example, greater than 60 °, the dirt cannot flow downward smoothly, and the dirt is hung on the wall and blocked on the inclined wall, and when the included angle β is too small, for example, less than 30 °, the length of the conical barrel is too long, and the conical barrel occupies too large space in the dirt box, thereby reducing the dirt holding capacity of the dirt box.

Preferably, the sewage draining outlet is an inclined sewage draining outlet, and an included angle alpha between the sewage draining outlet and the bottom valve is not more than 45 degrees when the vacuum generating device does not work, so that the bottom valve can be upwards adsorbed and the sewage draining outlet can be covered when the vacuum generating device starts to work. Namely, when the vacuum generating device does not work, the included angle alpha is not more than 45 degrees under the condition that the bottom valve is normally opened, so as to ensure that the bottom valve can be upwards adsorbed and the sewage draining outlet can be covered when the vacuum generating device starts to work. If the contained angle is too big, if be greater than 45, then vacuum generator's adsorption affinity will unable upwards adsorb the bottom valve for the bottom valve can't be closed the drain tightly, can't form airtight space in the vacuum transition jar, and then can not form the negative pressure.

Preferably, the lower end of the conical barrel is provided with a sewage discharge pipe, and the inclined sewage discharge port is arranged at the lower end of the sewage discharge pipe; the bottom valve is movably connected to the pipe wall of the sewage discharge pipe and is positioned on the side with the highest height of the inclined sewage discharge outlet. The bottom valve is adsorbed and tightly closed by the inclined sewage draining outlet.

Preferably, the outer side of the vacuum transition tank is provided with an air return device which is connected with the vacuum generating device and can enable odor to flow back, the air return device comprises an air return pipe, and an air outlet of the air return pipe is aligned with the outer end face of the bottom valve.

Preferably, be equipped with the access panel on the up end of vacuum transition jar, be equipped with the access hole on the access panel and can open or the tight movable access door of lid on the access hole, be equipped with reinforcing mesh and sealing member one on the inner wall of access door, a sealing member joint is between the lateral wall of reinforcing mesh and access door. The access hole is used for checking and overhauling the interior of the vacuum transition tank by workers, when the access door is thin, the access door is easy to damage, and when the access door is too thick, the access door is easy to shrink and deform to influence use, so that the access door adopts a structure with moderate thickness, and a reinforcing net with a net structure is arranged on the inner wall of the access door, and can form a reinforcing effect on the access door to prevent the access door from being damaged; and a first sealing element is further arranged on the inner wall of the access door, so that the sealing property of the vacuum transition tank can be further enhanced.

Preferably, the lower cavity extends into the sewage tank from the upper end of the sewage tank, and the joint of the lower end of the upper cavity and the upper end of the lower cavity is fixed on the upper end surface of the sewage tank; the lower part of the air return pipe extends into the sewage tank, and an air outlet of the air return pipe extending into the sewage tank is aligned with the bottom valve. The lower cavity extends into the sewage tank from the upper end of the sewage tank, and the upper cavity and the lower cavity which are installed are fixed on the upper end surface of the sewage tank at the joint, so that the vacuum transition tank can be conveniently detached from and replaced on the sewage tank.

Drawings

Fig. 1 is a schematic structural view of a related art suction sewage apparatus.

Fig. 2 is a general working principle diagram of the vacuum transition tank of the utility model.

Fig. 3 is a schematic perspective view of a vacuum transition tank according to the present invention.

FIG. 4 is a schematic front view of a vacuum transition tank of the present invention.

Fig. 5 is a sectional view in the direction a-a of fig. 4.

Fig. 6 is a sectional view in the direction B-B of fig. 4.

Fig. 7 is a schematic view showing the internal structure of the upper chamber according to the present invention (the upper chamber is placed upside down).

The reference numerals include: the device comprises a container 1, a waste water storage tank 2, an air draft combination 3, a sewage inlet pipe 4, a sewage discharge port 5, a bottom valve 6, a sewage inlet 7, an upper cavity 8, a sewage inlet area 8a, a vacuumizing area 8b, an exhaust pipe 9, a handle 10, a blocking plate 11, a side surface two 12, a side surface one 13, a balance weight bolt 14, a lower cavity 15, a conical barrel 16, a fastening bolt one 17, a sewage discharge pipe 18, a vacuum air suction pipe 19, a mounting seat 20, a vacuum generating device 21, a sewage box 22, an upper end surface 23 of the sewage box, an air return pipe 24, a reinforcing rib 25, a flange one 26, a flange two 27, a connecting column 28, a toilet 29, an inspection table 30, an inspection door 31, an inspection port 32, a reinforcing net 33, a buckle 34, a clamping groove 35, a spring 36 and a sealing piece one 37.

Detailed Description

The utility model is described in further detail below with reference to fig. 2-7.

A reducing vacuum transition tank, as shown in fig. 2-4, the vacuum transition tank is communicated with a sewage inlet pipe 4 and a vacuum generating device 21, a connection part between the vacuum generating device 21 and the vacuum transition tank is an air suction port, the vacuum generating device 21 and the vacuum transition tank are communicated by a vacuum suction pipe 19, specifically, a connection part between the vacuum suction pipe 19 and the vacuum transition tank is an air suction port, and the vacuum generating device 21 can suck vacuum into the vacuum transition tank through the vacuum suction pipe 19 to form negative pressure in the vacuum transition tank; the sewage inlet pipe 4 is communicated with the vacuum transition tank and is positioned on the side wall of the upper cavity 8, the sewage inlet pipe 4 is connected with the toilet 29, and the communication part of the sewage inlet pipe 4 and the vacuum transition tank is a sewage inlet 7; the lower part of the vacuum transition tank is communicated with the sewage tank 22, the vacuum transition tank can break the water seal in the submerged bay at the toilet 29 through the vacuum pumping negative pressure of the vacuum generating device 21, suck the sewage in the toilet 29 from the sewage inlet pipe 4, and make the sewage flow into the sewage tank 22.

The lower part of the vacuum transition tank, namely the lower part of the lower cavity 15, is a retractable structure, the lower end of the retractable structure is provided with a sewage outlet 5, the sewage outlet 5 is provided with a movable bottom valve 6, the weight of the bottom valve 6 is matched with the vacuum suction force of the vacuum generating device 21, and sewage flows into the sewage tank 22 through the sewage outlet 5; the area of the drain outlet 5 at the lower end of the vacuum transition tank is reduced through the reducing structure, and then the weight of the bottom valve 6 on the drain outlet 5 is reduced, so that the vacuumizing adsorption force of the vacuum generating device 21 enables the bottom valve 6 to tightly cover the drain outlet 5 to ensure the sealing performance of the bottom valve 6 of the vacuum transition tank. As shown in fig. 3, the retractable structure in this embodiment is specifically a conical barrel 16 structure with an inner diameter gradually decreasing from top to bottom, and a sewage outlet 5 is formed at the lower end of the conical barrel 16. The inner diameter of the conical barrel 16 is gradually reduced from top to bottom, so that the inner diameter of the lower end of the conical barrel 16 is smaller, the inner diameter of the sewage draining outlet 5 at the lower end of the conical barrel 16 is smaller, the weight of the bottom valve 6 matched with the inner diameter of the conical barrel is smaller, and the conical barrel can be tightly covered on the sewage draining outlet 5 by adsorption, so that the sealing property of the vacuum transition tank is ensured; the diameter of the sewage draining outlet 5 is 50-70mm, and the diameter of the sewage draining outlet is preferably 60mm in the embodiment; the drain 5 accessible undergauge formula structure forms under the conical barrel 16, also can form the lateral part that is located vacuum transition jar axial centerline L at the conical barrel 16 lower extreme through the undergauge formula structure, and this embodiment sets up drain 5 under conical barrel 16. As shown in fig. 4, the side wall of the conical barrel 16 is an inclined wall 16a, and an included angle β between an extension line of the inclined wall 16a of the conical barrel 16 and the axial center line L of the vacuum transition tank is: beta is more than or equal to 30 degrees and less than or equal to 60 degrees; a sewage discharge pipe 18 is arranged at the lower end of the conical barrel 16, a sewage discharge port 5 is arranged at the lower end of the sewage discharge pipe 18, the sewage discharge port 5 is an inclined sewage discharge port 5, and an included angle alpha between the sewage discharge port 5 and the bottom valve 6 is not more than 45 degrees when the vacuum generating device 21 does not work; the bottom valve 6 is movably connected on the pipe wall of the sewage discharge pipe 18 and is positioned at the side with the highest height of the inclined sewage discharge outlet 5. The inclined sewage draining outlet 5 enables the bottom valve 6 to be adsorbed and tightly closed. The inner diameter of the sewage outlet 5 is larger than that of a sewage inlet 7 communicated with the upper part of the vacuum transition tank, so that the sewage outlet 5 is prevented from being blocked by sewage; the diameter of the dirt inlet 7 is 40-60mm, preferably 50mm in this embodiment. The outer end face of the bottom valve 6 is also provided with a balance weight bolt 14, and the balance weight of the bottom valve 6 can be adjusted by increasing or reducing the number of the bolts, so that the weight and the angle of the bottom valve 6 are matched with the adsorption force of the vacuum generating device 21. The bottom valve 6 and the sewage draining exit 5 are both of an oval structure, the size of the bottom valve 6 is matched with that of the sewage draining exit 5, and the size of the bottom valve 6 is equal to or slightly larger than that of the sewage draining exit 5, so that the bottom valve 6 can tightly close the sewage draining exit 5, and the sealing performance of the vacuum transition tank is improved.

As shown in fig. 2-4, the vacuum transition tank includes a combined upper chamber 8 and lower chamber 15, and those skilled in the art can also construct the vacuum transition tank as a one-piece structure according to practical situations. The vacuum generating device 21 is communicated with the upper end surface of the vacuum transition tank positioned on the upper cavity 8, the upper end surface of the vacuum transition tank positioned on the upper cavity 8 is also provided with an air return device, and odor sucked by the vacuum suction pipe 19 and moving upwards from the vacuum transition tank can be exhausted through the exhaust device.

As shown in fig. 5, a blocking plate 11 positioned between the dirt inlet 7 and the air suction port is arranged in the vacuum transition tank, the upper end of the blocking plate 11 is fixedly connected to the lower end of the upper end face of the vacuum transition tank, the lower end of the blocking plate 11 extends downwards to the lower side of the dirt inlet pipe 4, dirt in the dirt inlet pipe 4 is prevented from being sucked into the vacuum generating device 21 through the blocking plate 11 to cause the blockage of the vacuum generating device 21, and the vacuum generating device 21 is ensured to enable vacuum negative pressure to be formed in the vacuum transition tank; simultaneously through the vacuum pumping negative pressure three interact that baffler 11, earth's gravity and vacuum generating device 21 formed make the filth that flows in the dirt pipe 4 can form the swirl in the cavity of vacuum transition jar, make the interior solid, liquid and the gaseous vertical separation of formation of vacuum transition jar through the swirl, solid and liquid are spiral downstream, gaseous upward movement.

The vacuum transition tank is of a cavity suction type structure, compared with a toilet system with a blowdown valve and a gas storage tank in the prior art, the vacuum transition tank container 10 in the utility model is smaller, the volume of the vacuum transition tank is 1.5-3 times of the full water volume of the toilet, and is 3-5 times of the volume of dirt discharged at one time, a common toilet or squatting pan in home can wash away the dirt by a large amount of water, and the volume of the toilet or squatting pan is larger, while the vacuum toilet system is a vacuum toilet system, the dirt is sucked into the sewage tank by negative pressure, and only a small amount of water is needed, so the toilet in the utility model is smaller, the vacuum transition tank is also very small, is dozens of times smaller than the gas storage tank in the vacuum blowdown system in the prior art, the water seal of a sinking bay can be destroyed by only 20 negative pressures to suck the dirt into the system, the water seal and a bottom valve of the toilet close the system, and the vacuum transition tank provides a space for the negative pressure formation of the closed system, the vacuum transition pot in this embodiment may therefore be referred to as a cavity-suction configuration transition pot.

As shown in fig. 6, the upper end of the blocking plate 11 is fixedly connected with the upper end face of the upper chamber 8, the blocking plate 11 divides the upper chamber 8 into a dirt inlet area 8a and a vacuum area 8b, the dirt inlet area 8a is communicated with the dirt inlet pipe 4, the vacuum area 8b is communicated with the vacuum suction pipe 19, and the dirt inlet area 8a and the vacuum area 8b are communicated below the lower end of the blocking plate 11; the dirt inlet 7 is positioned on the side wall of the vacuum transition tank, the lower end of the baffle plate 11 is positioned below the dirt inlet 7, namely the lower end face of the baffle plate 11 is lower than the dirt inlet 7, and the air suction port is positioned on the upper end face of the vacuum transition tank, so that dirt is prevented from being sucked into the vacuumizing area 8b to cause the blockage of the vacuum generating device 21. The volume of the dirty region 8a is greater than the volume of the evacuated region 8b, and the volume of the dirty region 8a is typically 2-4 times, preferably 3 times, the volume of the evacuated region 8 b. The dirt inlet 7 is located on one side of the blocking plate 11 far from the air suction port, specifically, the air suction port of the vacuum air suction pipe 19 and the dirt inlet 7 are respectively located on the side portions of two ends of the blocking plate 11.

As shown in fig. 6 and 7, a dirt inlet area 8a communicated with the dirt inlet pipe 4 is formed by one side surface two 12 of the blocking plate 11 and the side wall of the vacuum transition tank, and a vacuum-pumping area 8b communicated with the vacuum generating device 21 is formed by the other side surface one 13 of the blocking plate 11 relative to the dirt inlet area 8a and the side wall of the vacuum transition tank; the dirty section 8a and the evacuated section 8b communicate below the lower end of the baffle 11. The first side surface 13 comprises a plurality of vertically arranged reinforcing ribs 25, the number of the reinforcing ribs 25 is gradually reduced from one side close to the dirt inlet pipe 4 to one side close to the vacuum generating device 21, and the spacing distance between the reinforcing ribs 25 on the first side surface 13 close to the vacuum generating device 21 is larger than that between the reinforcing ribs 25 on the side close to the dirt inlet 7. Barrier plate 11 is towards the sunken arc barrier plate 11 of evacuation district 8b, and two 12 sides are towards the sunken concave cambered surface of evacuation district 8b, and two 12 sides of concave cambered surface profile in the arc barrier plate 11 form jointly with the lateral wall of vacuum transition jar and advance dirty district 8a, and the vacuum pumping negative pressure three interact that forms through two 12 sides of arc barrier plate 11, the dead weight of filth and vacuum generating device 21 makes the filth that flows into in the dirt inlet pipe 4 can form the swirl in the cavity of vacuum transition jar.

As shown in fig. 2 and 3, an access platform 30 located in the dirt intake area 8a is arranged on the upper end surface of the vacuum transition tank, i.e., the upper end surface of the upper chamber 8, the access platform 30 includes an access opening 32 and an access door 31 which can be opened or closed on the access opening 32 and is movably connected to the side wall of the access platform 30, a connecting column 28 is arranged on the side wall of the access platform 30, and the access door 31 is hinged to the connecting column 28; a buckle 34 is arranged on the side wall of the side of the access platform 30 far away from the connecting column 28, a spring 36 connected with the side wall of the access platform 30 is arranged on the inner side of the lower part of the buckle 34, and a clamping groove 35 capable of clamping the access door 31 through the buckle 34 is arranged on the upper end surface of the side of the access door 31 far away from the connecting column 28; can be with access door 31 chucking through draw-in groove 35, as shown in fig. 6, be equipped with reinforcing mesh 33 and sealing member 37 on the inner wall of access door 31, be equipped with seal groove one between reinforcing mesh 33 and the lateral wall of access door 31, sealing member 37 joint is in the seal groove one between reinforcing mesh 33 and the lateral wall of access door 31 for improve the leakproofness of vacuum transition jar, sealing member 37 in this embodiment specifically is O type sealing washer. The upper end face of the upper cavity 8 is also provided with a handle 10, so that the vacuum transition tank can be conveniently taken and placed. The upper chamber 8 is also communicated with an exhaust pipe 9, so that combustible gas generated in a vacuum transition tank forming a closed space in the vacuum pumping process can be timely discharged to avoid explosion.

As shown in fig. 3 and 4, an air return device communicated with the vacuum generating device 21 is arranged on the outer side of the vacuum transition tank, and an air outlet of an air return pipe 24 in the air return device is aligned with the outer end face of the bottom valve 6; when the vacuum generating device 21 works, the odor in the vacuum transition tank flows back and is blown to the bottom valve 6 through the air outlet of the air return pipe 24, and then the auxiliary bottom valve 6 is tightly closed on the sewage discharge port 5, so that the vacuum transition tank is kept in a closed state.

As shown in fig. 4, the lower end of the upper chamber 8 extends outward to form a first flange 26, the upper end of the lower chamber 15 extends outward to form a second flange 27, the upper chamber 8 and the lower chamber 15 are connected by arranging a plurality of fastening bolts 17 on the first flange 26 and the second flange 27, a second sealing groove is arranged at the joint of the upper chamber 8 and the lower chamber 15, the second sealing groove can be arranged on the inner wall of the first flange 26 or the second flange 27, the second sealing groove of the embodiment is arranged on the inner wall of the second flange 27, a second sealing element is arranged in the second sealing groove, and the sealing property between the first upper chamber 8 and the second lower chamber 15 is improved by the second sealing element, which is an O-shaped sealing ring in the embodiment. As shown in fig. 2, a dirt box 22 is arranged below the vacuum transition tank, a connecting groove is arranged at the upper end of the dirt box 22, the connected vacuum transition tank is placed into the dirt box 22 from the connecting groove, wherein the lower cavity 15 extends into the dirt box 22, the upper cavity 8 and the lower cavity 15 are fixed on an upper end surface 23 of the dirt box at the joint of the lower end of the upper cavity 8 and the upper end of the lower cavity 15, specifically, a convex edge two 27 of the lower cavity 15 is clamped on the upper end surface 23 of the dirt box, an installation seat 20 is arranged on the outer end surface of the convex edge two 27, and fastening bolts two are arranged on the installation seat 20 and the upper end surface 23 of the dirt box, so that the vacuum transition tank is connected with the dirt box 22; the lower part of the air return pipe 24 extends into the sewage tank 22, and an air outlet of the air return pipe 24 extending into the sewage tank 22 is aligned with the bottom valve 6.

The specific implementation process is as follows:

the toilet 29 begins to flush, at this time, the vacuum generating device is started and upwards adsorbs the movable bottom valve 6, vacuum negative pressure is formed in the vacuum transition tank and sucks sewage into the sewage inlet area 8a from the toilet 29 through the sewage discharge pipe, the sewage rushes to the second side surface 12 of the barrier plate 11 in the sewage inlet area 8a and forms a vortex, solid, liquid and gas are vertically separated in the vacuum transition tank through the vortex, the sewage in the form of solid and liquid downwards moves and falls into the sewage tank 22 from the conical barrel 16 and the sewage discharge port 5, odor in the vacuum transition tank upwards moves and is sucked into the air return pipe 24 through the vacuum generating device 21 and is discharged from the air exhaust port of the air return pipe 24 and blown to the movable bottom valve 6, and the movable bottom valve 6 is assisted to tightly close the sewage discharge port 5. After the dirt is sucked, the vacuum generating device is closed, the movable bottom valve 6 is opened downwards under the action of the gravity of the dirt and the gravity of the movable bottom valve 6, and the dirt falls into the dirt box 22.

The above examples are only illustrative and not restrictive, and those skilled in the art can make modifications to the embodiments of the present invention as required without any inventive contribution thereto after reading the present specification, but all such modifications are intended to be protected by the following claims.

Claims (9)

1. The utility model provides a vacuum transition jar of undergauge formula, the upper portion intercommunication of vacuum transition jar has vacuum generating device (21) and advances dirty pipe (4), the lower part and dirty case (22) intercommunication of vacuum transition jar, a serial communication port, the formula structure is inhaled for the chamber to the vacuum transition jar, the vacuum transition jar includes epicoele (8) and lower chamber (15), and cavity of resorption (15) of vacuum transition jar are undergauge formula structure, and the lower extreme of indent formula structure is equipped with drain (5), is equipped with movable bottom valve (6) on drain (5), and the filth passes through in drain (5) inflow dirty case (22).

2. A reducing vacuum transition tank according to claim 1, characterized in that the volume of the vacuum transition tank is 1.5-3 times of the volume of the toilet bowl (29).

3. A diameter-reducing vacuum transition tank as claimed in claim 2, wherein the diameter-reducing structure is a diameter-reducing conical barrel (16), the inner diameter of the conical barrel (16) is gradually reduced from top to bottom, the lower end of the conical barrel (16) is provided with a sewage draining outlet (5), the bottom valve (6) is movably arranged on the sewage draining outlet (5), and the weight and the angle of the bottom valve (6) are matched with the vacuum suction force of the vacuum generating device (21).

4. A diameter-reducing vacuum transition pot according to claim 3, characterized in that the angle β between the extension of the inclined wall (16 a) of the conical barrel (16) and the axial centerline L of the vacuum transition pot is: beta is more than or equal to 30 degrees and less than or equal to 60 degrees.

5. A reducing vacuum transition tank according to claim 4, characterized in that the sewage draining outlet (5) is an inclined sewage draining outlet (5), and the included angle α between the sewage draining outlet (5) and the bottom valve (6) is not more than 45 ° when the vacuum generating device (21) does not work.

6. The reducing vacuum transition tank as claimed in claim 5, characterized in that the lower end of the conical barrel (16) is provided with a sewage discharge pipe (18), and the inclined sewage discharge outlet (5) is arranged at the lower end of the sewage discharge pipe (18); the bottom valve (6) is movably connected to the pipe wall of the sewage discharge pipe (18) and is positioned on the side with the highest height of the inclined sewage discharge outlet (5).

7. A diameter-reducing vacuum transition tank according to any one of claims 1 to 6, characterized in that the vacuum transition tank is provided with an air return device connected with a vacuum generating device (21) and capable of making odor backflow, the air return device comprises an air return pipe (24), and the air outlet of the air return pipe (24) is aligned with the outer end face of the bottom valve (6).

8. A diameter-reducing vacuum transition tank as claimed in claim 7, wherein an access platform (30) is arranged on the upper end face of the vacuum transition tank, an access opening (32) and a movable access door (31) which can be opened or closed on the access opening (32) are arranged on the access platform (30), a reinforcing mesh (33) and a first sealing element (37) are arranged on the inner wall of the access door (31), and the first sealing element (37) is clamped between the reinforcing mesh (33) and the side wall of the access door (31).

9. The diameter-reducing vacuum transition tank as claimed in claim 8, characterized in that the lower cavity (15) extends into the dirt box (22) from the upper end of the dirt box (22) and is fixed on the upper end surface (23) of the dirt box at the joint of the lower end of the upper cavity (8) and the upper end of the lower cavity (15); the lower part of the air return pipe (24) extends into the sewage tank (22), and an air outlet (25) of the air return pipe (24) extending into the sewage tank (22) is aligned with the bottom valve (6).

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