Pneumatic blowdown device

Abstract

The invention relates to the field of environmental protection equipment, in particular to a pneumatic blowdown device. Comprising a sewage storage tank, a sewage suction pipeline, a sewage discharge pipeline and an air source device. Wherein a first cavity body and a second cavity body which are arranged up and down are arranged in the dirt storage box. A sewage inlet corresponding to the position of the first cavity and a sewage outlet corresponding to the position of the second cavity are formed in the sewage storage tank. And a switch is arranged between the first cavity and the second cavity. And an air source interface is arranged above the sewage inlet on the sewage storage tank. An air inlet is formed in the sewage storage tank and below the switch. The sewage suction pipeline is used for connecting the excrement collector or the closestool and the sewage inlet. The blow-off pipeline is used for connecting an external main blow-off pipe and a blow-off The air source device is used for generating one-way airflow, the air inlet end is communicated with the air source connector, and the exhaust end is communicated with the air inlet. According to the invention, sewage discharge operation is carried out while sewage suction operation is carried out every time, so that the overall sewage discharge effect is improved, and the technical problem that the overall sewage discharge effect is poor due to single-time sewage suction or sewage discharge operation in the prior art is solved.

Description

Technical Field

[0001] The invention relates to the field of environmental protection equipment, and in particular to a pneumatic sewage discharge device. Background Art

[0002] In the prior art, pneumatic sewage discharge devices generally use two steps to discharge sewage, that is, firstly, the sewage is sucked into the sewage storage box through the sewage suction operation, and then the sewage is discharged from the sewage storage box to the external main sewage discharge pipe through the sewage discharge operation. Since a single sewage suction operation and sewage discharge operation are prone to residue, it will cause the technical problem of poor overall sewage discharge effect. Summary of the invention

[0003] The invention provides a sewage discharge device, which solves the technical problem in the prior art that the installation of a toilet or a toilet collection bowl is seriously restricted by the position of a main sewage discharge pipe.

[0004] In order to solve the above technical problems, the technical solution adopted in this embodiment is as follows:

[0005] In some embodiments, the present invention provides a pneumatic sewage discharge device, comprising:

[0006] A dirt storage box, wherein a first cavity and a second cavity are provided in the dirt storage box, and the first cavity is located above the second cavity; a dirt inlet is provided at a position corresponding to the first cavity, and a dirt outlet is provided at a position corresponding to the second cavity; a first through hole of a preset aperture is provided between the first cavity and the second cavity, and a switch is provided at the first through hole, and when the switch is in an on state, the first cavity and the second cavity can be connected; an air source interface and an air inlet are provided on the dirt storage box; the air source interface is connected to the first cavity; and the air inlet is connected to the second cavity;

[0007] A sewage suction pipe, one end of which is used to connect to a toilet or a urinal, and the other end of which is connected to the sewage inlet;

[0008] A sewage pipe, one end of which is used to connect to an external main sewage pipe, and the other end of which is connected to the sewage outlet;

[0009] The air source device is used to generate a unidirectional airflow; its air inlet end is connected to the air source interface, and its air outlet end is connected to the air inlet.

[0010] In some embodiments, the switch is a one-way switch in the same direction as the sewage discharge direction.

[0011] In some embodiments, the switch is a swing check valve, which is used as the first swing check valve.

[0012] In some embodiments, the first swing check valve includes a valve seat and a valve flap hinged to the valve seat; the valve flap includes a flap and a counterweight, and a hinge between the valve flap and the valve seat is located between the flap and the counterweight.

[0013] In some embodiments, the air source device is a fan, the air inlet end of the fan is connected to the air source interface, and the air outlet end of the fan is connected to the air inlet.

[0014] In some embodiments, the number of the air source interfaces is several, and the number of the air inlets matches the number of the air source interfaces; the number of the fans is greater than or equal to the number of the air source interfaces; a plurality of the fans are arranged in parallel, or first in series and then in parallel.

[0015] In some embodiments, the sewage suction pipe is provided with a first one-way switch in the same direction as the sewage suction direction.

[0016] In some embodiments, the sewage pipe is equipped with a second one-way switch in the same direction as the sewage discharge direction.

[0017] In some embodiments, a water trap is provided between the second one-way switch and the sewage outlet.

[0018] In some embodiments, the first one-way switch and / or the second one-way switch is a swing one-way valve, which is used as a second swing one-way valve, including a valve body and a valve cover that can be opened from the outside.

[0019] In some embodiments, an air pipe interface is provided on the valve cover, the air pipe interface is located on the air flow outflow side of the second swing-type one-way valve disc, and the air pipe interface is configured with an air circuit switch.

[0020] In some embodiments, a third one-way switch in the same direction as the air flow direction is installed between the exhaust end of the air source device and the air inlet.

[0021] In some embodiments, a gas-water separation device is disposed in the first cavity, and the gas-water separation device is located between the first through hole and the gas source interface.

[0022] In some embodiments, the gas-water separation device includes a first gas-water separation mechanism, and the first gas-water separation mechanism includes:

[0023] A cylinder, wherein the first end of the cylinder is connected to the gas source interface, the second end of the cylinder is connected to the first cavity, and the gas source interface is connected to the first cavity through the second end of the cylinder; a limiting mechanism is assembled in the cylinder;

[0024] A suspension is located below the second end of the cylinder; a rod is mounted on the suspension, and the rod is slidably connected to the limiting mechanism; with the cooperation of the rod and the limiting mechanism, the suspension and the cylinder can perform relative displacement within a preset length range; when the suspension abuts against the second end of the cylinder, the interior of the cylinder can be separated from the interior of the dirt storage box; the density of the suspension is a preset value.

[0025] In some embodiments, the density of the suspension is less than or equal to the density of water.

[0026] In some embodiments, the cylinder is a vertically arranged cylinder, and the suspension is a sphere having a diameter larger than an inner diameter of the cylinder.

[0027] In some embodiments, the limiting mechanism is a first partition assembled on the inner wall of the cylinder, and a second through hole and a plurality of third through holes are opened on the first partition; the rod body passes through the second through hole, and the cross-sectional area of ​​the rod body at a preset position above the second through hole is larger than the cross-sectional area of ​​the second through hole.

[0028] In some embodiments, the gas-water separation device also includes a plurality of second gas-water separation mechanisms, the second gas-water separation mechanisms are provided with a third air inlet, an exhaust port and a first liquid drain port, the exhaust port is located above the first liquid drain port; a second partition is arranged between the cylinder body and the inner wall of the dirt storage box, the second partition and the outer wall of the cylinder body and the inner wall of the dirt storage box form a third cavity; the first end of the cylinder body is respectively connected with a plurality of the third air inlets, a plurality of the exhaust ports are connected with the air source interface, and a plurality of the first liquid drain ports are connected with the third cavity; a second liquid drain port is opened on the side wall at the corresponding position of the dirt storage box and the third cavity, and the second liquid drain port is connected with the air inlet.

[0029] In some embodiments, a fourth one-way switch in the same direction as the liquid discharge direction is installed between the second liquid discharge port and the air inlet.

[0030] In some embodiments, the second air-water separation mechanism includes a cover body and a base, the cover body is provided with a first spiral groove with a groove pointing downward, the starting end of the first spiral groove is connected to the third air inlet, and the end of the first spiral groove is located below its starting end; the inner edge of the spiral groove extends downward to form a columnar through hole serving as the exhaust port; the first liquid discharge port is located at the bottom of the base.

[0031] In some embodiments, the second liquid discharge port corresponds to the lowest position of the bottom of the third cavity.

[0032] In some embodiments, the second partition is provided with a second spiral chute with a notch pointing downward; the starting end of the second spiral chute is connected to the sewage inlet, and the end of the second spiral chute is located below its starting end.

[0033] In some embodiments, the preset aperture is greater than or equal to 10 centimeters.

[0034] Beneficial Effects

[0035] The present invention uses an air source device that generates a unidirectional airflow to provide power for sewage suction and sewage discharge operations. Each time a sewage suction operation is performed, a sewage discharge operation is also performed. The sewage in the current toilet or toilet collection tank can be sucked into the first cavity while the sewage remaining in the previous time in the second cavity can be discharged for a second time. When the sewage enters the second cavity and the sewage discharge operation is performed, the sewage remaining in the toilet or toilet collection tank can be sucked for a second time at the same time, thereby improving the overall sewage discharge effect and solving the technical problem in the prior art that only a single sewage suction or sewage discharge operation is performed, resulting in a poor overall sewage discharge effect.

[0036] Additional aspects and advantages of embodiments of the present invention will be given in part in the following description and in part will be obvious from the following description or learned through practice of embodiments of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0038] The devices and structures in the accompanying drawings will be further described according to exemplary embodiments. These exemplary embodiments will be described in detail with reference to the drawings. These exemplary embodiments are non-limiting exemplary embodiments, in which example numbers represent similar mechanisms in the various views of the accompanying drawings.

[0039] Figure 1 It is a schematic structural diagram of a pneumatic sewage discharge device provided in one embodiment of the present invention.

[0040] Figure 2 It is a schematic cross-sectional structure diagram of a pneumatic sewage discharge device provided in one embodiment of the present invention.

[0041] Figure 3 It is a schematic diagram of a first unidirectional switch structure provided in one embodiment of the present invention.

[0042] Figure 4 It is a schematic cross-sectional structure diagram of a gas-water separation device provided in one embodiment of the present invention.

[0043] Figure 5 It is a schematic diagram of a structural explosion diagram of a second gas-water separation mechanism provided in one embodiment of the present invention.

[0044] Figure 6 It is a schematic cross-sectional structure diagram of a second gas-water separation mechanism provided in one embodiment of the present invention.

[0045] Figure 7 It is a schematic structural diagram of a pneumatic sewage discharge device provided in another embodiment of the present invention.

[0046] Figure 8 It is a schematic cross-sectional structure diagram of a pneumatic sewage discharge device provided in another embodiment of the present invention.

[0047] Description of reference numerals:

[0048] 1000-sewage storage box; 1100-first cavity; 1110-sewage inlet; 1120-first through hole; 1130-switch; 1131-valve seat; 1132-valve flap; 1132a-flap; 1132b-weight block; 1200-second cavity; 1210-sewage outlet; 1300-gas source interface; 1310-first interface; 1320-second interface; 1400-air inlet; 1410-first air inlet; 1420-second air inlet; 1500-third cavity; 1510-second liquid discharge outlet; 1520-fourth one-way switch;

[0049] 2000-gas-water separation device; 2100-first gas-water separation mechanism; 2110-cylinder; 2120-limiting mechanism; 2121-first partition; 2122-second through hole; 2123-third through hole; 2130-suspension body; 2140-rod; 2141-preset position; 2200-second gas-water separation mechanism; 2210-third air inlet; 2220-exhaust port; 2230-first liquid discharge port; 2240-cover; 2241-first spiral slide; 2250-base; 2260-second partition;

[0050] 3000-sewage suction pipe; 3100-first one-way switch; 3110-valve body; 3120-valve cover; 3130-trachea interface; 3140-tracheal switch;

[0051] 4000-sewage pipe; 4100-second one-way switch; 4200-water trap;

[0052] 5000-air source device; 5100-first fan; 5200-second fan; 5300-third one-way switch. DETAILED DESCRIPTION

[0053] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0054] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0055] In the description of the present invention, it should be noted that the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0056] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] See also Figure 1 and Figure 2In some embodiments, the present invention provides a pneumatic sewage discharge device, including a sewage storage box 1000, a sewage suction pipe 3000, a sewage discharge pipe 4000 and an air source device 5000. The sewage storage box 1000 is provided with two cavities arranged up and down, and the two cavities are respectively used as a first cavity 1100 and a second cavity 1200, and the first cavity 1100 is located above the second cavity 1200. The sewage storage box 1000 is provided with a sewage inlet 1110 and a sewage discharge port 1210, the sewage inlet 1110 corresponds to the position of the first cavity 1100 and is communicated with the interior of the first cavity 1100, and the sewage discharge port 1210 corresponds to the position of the second cavity 1200 and is communicated with the interior of the second cavity 1200. Preferably, the sewage discharge port 1210 is arranged at the bottom of the second cavity 1200. A first through hole 1120 of a preset aperture is provided between the first cavity 1100 and the second cavity 1200, and a switch 1130 is provided on the first through hole 1120. When the switch 1130 is in an on state, the first cavity 1100 and the second cavity 1200 can be connected. An air source interface 1300 is provided on the dirt storage box 1000, and the air source interface 1300 is connected to the first cavity 1100. Preferably, the air source interface 1300 is located above the sewage inlet 1110. An air inlet 1400 is provided on the dirt storage box 1000 below the switch 1130, and the air inlet 1400 is connected to the second cavity 1200. One end of the sewage suction pipe 3000 is used to connect to a toilet or a toilet, and the other end is connected to the sewage inlet 1110. One end of the sewage discharge pipe 4000 is used to connect to an external main sewage discharge pipe, and the other end is connected to the sewage discharge port 1210. The air source device 5000 is used to generate a unidirectional airflow, wherein the air inlet end is connected to the air source interface 1300 , and the air outlet end is connected to the air inlet 1400 .

[0058] When in use, one end of the sewage suction pipe 3000 is connected to a toilet or a urinal, and the switch 1130 is turned off. When the waste enters the urinal or the urinal, the air source device 5000 is started to extract the air in the first cavity 1100, so that the air pressure in the sewage suction pipe 3000 is reduced, and an air pressure difference is generated between the urinal or the urinal, and finally the waste is sucked into the first cavity 1100 through the sewage suction pipe 3000, and the sewage suction operation is completed; then the air source device 5000 is turned off, and the switch 1130 is turned on, and the waste falls into the second cavity 1200 due to its own gravity. Finally, the switch 1130 is turned off and the air source device 5000 is started again, and air is injected into the second cavity 1200, so that the air pressure in the second cavity 1200 is increased, and an air pressure difference is generated between the sewage discharge pipe 4000 and the sewage is finally discharged through the sewage discharge pipe 4000, and the sewage discharge operation is completed.

[0059] It is understandable that after the air source device 5000 is started, the direction of air flow is from the toilet or the toilet bowl, and passes through the sewage suction pipe 3000, the sewage inlet 1110, the first cavity 1100, the air source interface 1300, the air source device 5000, the air inlet 1400, the second cavity 1200, the sewage outlet 1210, the sewage pipe 4000, and the external main sewage pipe. Therefore, when the switch 1130 is in the closed state, after the air source device 5000 is started, the air in the first cavity 1100 flows out, causing the air pressure to decrease, while the air is injected into the second cavity 1200, causing the air pressure to increase, that is, the sewage suction operation and the sewage discharge operation are performed simultaneously.

[0060] The present invention uses an air source device 5000 that generates a unidirectional airflow to provide power for sewage suction and sewage discharge operations. Each time a sewage suction operation is performed, a sewage discharge operation is also performed. The sewage in the current toilet or toilet collection tank can be sucked into the first cavity 1100, and the sewage remaining in the previous sewage collection tank in the second cavity 1200 can be discharged for a second time. When the sewage enters the second cavity 1200 and the sewage discharge operation is performed, the sewage remaining in the toilet or toilet collection tank can be sucked for a second time at the same time, thereby improving the overall sewage discharge effect and solving the technical problem in the prior art that only a single sewage suction or sewage discharge operation is performed, resulting in poor overall sewage discharge effect.

[0061] It is understandable that there are many ways to implement the structure of the dirt storage box 1000. Figure 1 and Figure 7 . Figure 1 The dirt storage box 1000 is an integrated structure, the second cavity 1200 is located directly below the first cavity 1100, and the two cavities are adjacent to each other, and dirt can directly fall from the first cavity 1100 into the second cavity 1200 through the first through hole 1120. Figure 7 The dirt storage box 1000 is a split structure, and the second cavity 1200 is located obliquely below the main part of the first cavity 1100. The bottom of the first cavity 1100 is designed as a pipe inclined at a preset angle, which is connected to the second cavity 1200 through a first through hole 1120, and the first through hole 1120 is located on the side wall of the second cavity 1200.

[0062] In some embodiments, the pipe at the bottom of the first cavity 1100 is inclined at 45 degrees.

[0063] It can be understood that the gas source device 5000 in the present invention can adopt an electric gas source device, and the opening or closing of the gas source device 5000 can be controlled by connecting to a processor. The specific connection method and control placement can be achieved through existing technologies, so they will not be elaborated here.

[0064] It is understandable that the switch 1130 can be implemented in a variety of ways. For example, a two-way switch of an external controller can be used to open and close in coordination with the start-up of the gas source device 5000. Alternatively, a one-way switch in the same direction as the sewage discharge direction can be used.

[0065] In some embodiments, the preset aperture of the first through hole 1120 is greater than or equal to 10 cm.

[0066] In some embodiments, the switch 1130 is a one-way switch in the same direction as the sewage discharge direction, and can only allow airflow or dirt to move from the first cavity 1100 to the second cavity 1200. When the air source device 5000 is started, the air pressure in the first cavity 1100 decreases. When the air in the second cavity 1200 flows to the first cavity 1100 through the first through hole 1120, the switch 1130 can be automatically closed; when the air source device 5000 is turned off, when the dirt passes through the first through hole 1120 due to its own gravity, the switch 1130 can be automatically opened, so that the dirt falls into the second cavity 1200. There is no need to rely on an additional controller to open and close the switch 1130, which simplifies the structure and reduces the failure rate.

[0067] See also Figure 2 Further, the switch 1130 is a swing-type one-way valve, which is used as the first swing-type one-way valve.

[0068] Further, the first swing check valve includes a valve seat 1131 and a valve flap 1132, and the valve flap 1132 is hinged to the edge of the valve seat 1131. It is understandable that the valve flap 1132 can be implemented in a variety of ways, please refer to Figure 2 and Figure 8 . Figure 2The contact surface between the valve seat 1131 and the valve flap 1132 of the first swing check valve is tilted. The valve flap 1132 flips downward when it is opened. In order to enable the valve flap 1132 to close with the valve seat 1131 without being affected by external forces, the valve flap 1132 includes a flap 1132a and a counterweight 1132b. The hinge between the valve flap 1132 and the valve seat 1131 is located between the flap 1132a and the counterweight 1132b. The valve seat 1131 can be tilted or horizontally arranged. The flap 1132a and the counterweight 1132b form a lever structure with the hinge as the fulcrum. When the air source device 5000 is closed, the flap 1132a is closed with the valve seat 1131 due to the gravity of the counterweight 1132b. After the air source device 5000 is started, the air pressure in the first cavity 1100 decreases, and the closed state of the flap 1132a and the valve seat 1131 remains unchanged. When the air source device 5000 is closed, if there is dirt at the opening, the dirt passes through the first through hole 1120 due to its own gravity and exerts pressure on the flap 1132a, causing the flap 1132a to open, and the dirt falls into the second cavity 1200, and then the flap 1132a is closed again with the valve seat 1131 due to the gravity of the counterweight 1132b. After the air source device 5000 is started, the air pressure in the first cavity 1100 decreases, and the closed state of the flap 1132a and the valve seat 1131 remains unchanged. When the air source device 5000 is closed, if there is dirt at the opening, the dirt passes through the first through hole 1120 due to its own gravity and exerts pressure on the flap 1132a, causing the flap 1132a to open, and the dirt falls into the second cavity 1200. Then the flap 1132a is closed again with the valve seat 1131 due to the gravity of the counterweight block 1132b. Figure 8 The first swing check valve in the embodiment adopts a conventional swing check valve structure, the contact surface between the valve seat 1131 and the valve flap 1132 is vertically arranged, the valve flap 1132 is flipped sideways when opened, and the valve flap 1132 can be directly closed with the valve seat 1131 without being affected by external forces. It can be understood that the conventional swing check valve structure is also applicable to the scenario where the contact surface between the valve seat and the valve flap is tilted upward.

[0069] It is understandable that the air source device 5000 can be implemented in a variety of ways. If the installation conditions permit, an air compressor can be used as the air source device 5000, or the air source interface 1300 can be directly connected to a fan.

[0070] In some specific implementations, the aforementioned air source device 5000 is a fan, the air inlet end of the fan is connected to the air source interface 1300, and the air outlet end of the fan is connected to the air inlet 1400.

[0071] Furthermore, when the actual application requires the fan to provide a higher power, it can be achieved by connecting multiple fans in series. Figure 7The air inlet of the front fan can be connected to the air source interface 1300, and the air outlet can be connected to the air inlet of the next fan, and so on, and the air outlet of the terminal fan can be connected to the air inlet 1400.

[0072] In some embodiments, multiple fans can be connected in parallel. The number of air source interfaces 1300 is multiple, and the number of air inlets 1400 matches the number of air source interfaces 1300. The number of fans is greater than or equal to the number of air source interfaces. Multiple fans are connected in parallel. For example, two fans are connected in parallel. Figure 1 There are two air source interfaces 1300, including a first interface 1310 and a second interface 1320. There are two fans, including a first fan 5100 and a second fan 5200. The air inlet end of the first fan 5100 is connected to the first interface 1310, and the air inlet end of the second fan 5200 is connected to the second interface 1320. There are two air inlets 1400, including a first air inlet 1410 and a second air inlet 1420. The air outlet end of the first fan 5100 is connected to the first air inlet 1410, and the air outlet end of the second fan 5200 is connected to the second air inlet 1420. When in use, the first fan 5100 and / or the second fan 5200 can be started according to actual application needs. For example, one of them can be started when energy saving is required, or when one of them fails, the pneumatic sewage discharge device can continue to operate. When both are started at the same time, greater power can be provided for the sewage suction operation or sewage discharge operation, thereby improving the overall sewage discharge effect of the pneumatic sewage discharge device.

[0073] Furthermore, multiple fans can be arranged in series and then in parallel to adapt to more complex application environments.

[0074] See also Figure 1 and Figure 8 In some embodiments, a first one-way switch 3100 in the same direction as the sewage suction direction is configured in the sewage suction pipe 3000. It is used to prevent the gas in the sewage storage box 1000 from flowing back into the cesspool or toilet through the sewage suction pipe 3000 to cause odor. The first one-way switch 3100 can be set in the middle section of the sewage suction pipe 3000, or at the end of the sewage suction pipe 3000, such as at the sewage suction port.

[0075] Please continue reading Figure 1 In some embodiments, a second one-way switch 4100 in the same direction as the sewage discharge direction is configured in the sewage discharge pipe 4000 to prevent the sewage in the external main sewage discharge pipe from entering the sewage storage box 1000 through the sewage discharge pipe 4000.

[0076] Please continue reading Figure 1In some embodiments, a trap 4200 is provided between the second one-way switch 4100 and the sewage outlet 1210. The trap 4200 is used to accumulate waste, so that a higher air pressure can be obtained in the second cavity 1200 during sewage discharge operation, thereby providing greater power for sewage discharge operation, so that waste has greater kinetic energy, and can be discharged to a farther or higher position than the pneumatic sewage discharge device through the sewage discharge pipe 4000.

[0077] See also Figure 2 and Figure 7 It is understandable that when the sewage pipe 4000 is arranged in a vertical direction and the main sewage pipe is located below the pneumatic sewage discharge device, the sewage can be discharged into the main sewage pipe in a direct discharge manner, and there is no need to set the second one-way switch 4100 in the sewage pipe 4000, and there is no need to set the water trap 4200 between the second one-way switch 4100 and the sewage outlet 1210. In general, the sewage can fall directly from the sewage pipe 4000 due to its own gravity until it enters the main sewage pipe. When too much sewage causes the connection between the sewage pipe 4000 and the main sewage pipe to be blocked, the sewage discharge operation of the pneumatic sewage discharge device can also play a role in clearing the blockage.

[0078] Furthermore, the first one-way switch 3100 and / or the second one-way switch 4100 may adopt a swing one-way valve, which is used as the second swing one-way valve.

[0079] Further, the second swing check valve includes a valve body 3110 and a valve cover 3120 that can be opened from the outside. Figure 3 , Figure 3 The schematic diagram of the structure when a swing check valve is used as the first check valve 3100 is shown. In actual use, it is inevitable that dirt will be blocked in the pipeline, and the first check valve 3100 and the second check valve 4100 have a more complex inner wall structure than other positions in the pipeline, which is more likely to block dirt from passing through and form a blockage. A valve cover 3120 that can be opened from the outside is provided on the valve body 3110, and the valve cover 3120 can be opened in time for cleaning when dirt is blocked, which is convenient for efficient maintenance of the sewage discharge device.

[0080] It is understandable that the first one-way switch 3100 and / or the second one-way switch 4100 may also adopt a conventional swing-type one-way valve structure, for example Figure 8 The first one-way switch 3100 is a conventional swing-type one-way valve structure.

[0081] Please continue reading Figure 3Furthermore, the valve cover 3120 is provided with an air pipe interface 3130 that can be opened and closed, and the air pipe interface 3130 is located on the air flow outflow side of the second swing check valve disc, and the air pipe interface 3130 is equipped with an air circuit switch 3140. In actual use, the air pipe interface 3130 can be connected to an external pressurizing device to use high-pressure gas for cleaning operations. Taking the first one-way switch 3100 as an example, when the blockage point is between the first one-way switch 3100 and the sewage inlet 1110, the first through hole 1120, or the sewage outlet 1210 and the second one-way switch 4100, high-pressure gas is applied through the air pipe interface 3130 at the first one-way switch 3100. Since the air pipe interface 3130 is located on the air flow outflow side of the second swing one-way valve, when the high-pressure gas enters, the valve flap 1132 of the second swing one-way valve closes the sewage suction pipe 3000, and the high-pressure gas can only flow in the sewage suction direction, passing through the sewage suction pipe 3000, the first through hole 1120, the sewage outlet 1210, and finally to the second one-way switch 4100, so that the sewage between the first one-way switch 3100 and the second one-way switch 4100 can be cleaned. When the blockage point is in the sewage pipe 4000 after the second one-way switch 4100, high-pressure gas is applied through the air pipe interface 3130 at the second one-way switch 4100 to perform a sewage cleaning operation. When the sewage discharge device operates normally, the gas circuit switch 3140 is closed, so that the inside of the sewage suction pipe 3000 or the sewage discharge pipe 4000 is in a sealed state.

[0082] See also Figure 2 Furthermore, a third one-way switch 5300 in the same direction as the airflow direction is installed between the air source device 5000 and the air inlet 1400, which is used to prevent airflow from entering the air source device 5000 through the air inlet 1400 during the aforementioned cleaning operation, thereby protecting the air source device 5000.

[0083] See also Figure 2 In some embodiments, a gas-water separation device 2000 is disposed in the first cavity 1100 and is located between the first through hole 1120 and the gas source interface 1300 to prevent liquid from entering the gas source device 5000 along with the gas flow, thereby protecting the gas source device 5000.

[0084] It is understandable that there are many ways to implement the gas-water separation device 2000. Figure 8 The gas-water separation device is a baffle mounted on the side wall of the first cavity, which can block the splashing of liquid droplets without affecting the flow of gas in the first cavity.

[0085] See also Figure 4In some embodiments, the gas-water separation device 2000 includes a first gas-water separation mechanism 2100, and the first gas-water separation mechanism 2100 includes a cylinder 2110 and a suspension 2130. The first end of the cylinder 2110 is connected to the gas source interface 1300, the second end of the cylinder 2110 is communicated with the first cavity 1100, the gas source interface 1300 is communicated with the first cavity 1100 through the second end of the cylinder 2110, and a limiting mechanism 2120 is installed in the cylinder 2110. The suspension 2130 is located below the second end of the cylinder 2110, and a rod 2140 is installed on the suspension 2130, and the rod 2140 is slidably connected to the limiting mechanism 2120. With the cooperation of the rod 2140 and the limiting mechanism 2120, the suspension 2130 and the cylinder 2110 can be relatively displaced within a preset length range, and the suspension 2130 and the second end of the cylinder 2110 can be abutted or separated. When the suspension 2130 abuts the second end of the cylinder 2110, the interior of the cylinder 2110 can be separated from the interior of the first cavity 1100. The density of the suspension 2130 is a preset value. During use, when a lot of dirt is sucked in, the suspension 2130 floats up until it abuts against the second end of the cylinder 2110, separating the internal space of the cylinder 2110 from the first cavity 1100, preventing the dirt from gradually increasing and entering the gas source device 5000 through the gas source interface 1300. At this time, since the second end of the cylinder 2110 is sealed, the gas in the first cavity 1100 can no longer be drawn out by the gas source device 5000, and the air pressure returns to normal. The dirt passes through the first through hole 1120 due to its own gravity, causing the switch to open and falling into the second cavity 1200. Then the suspension 2130 falls, the switch is closed, and the gas in the first cavity 1100 is pumped out again, and the dirt suction operation continues.

[0086] Furthermore, since the dirt is generally a mixture of solid and liquid, the density of the suspension 2130 is preferably less than or equal to the density of water to ensure that it can float in the dirt.

[0087] Specifically, the cylinder 2110 is a vertically arranged cylinder, the suspension 2130 is a hollow plastic float having a diameter greater than the inner diameter of the cylinder 2110, and the shape of the second end edge of the cylinder 2110 matches the surface of the float. When the solid content in the dirt is high, the dirt falls into the bottom of the first cavity 1100 and gradually accumulates until it abuts against the float. Whether the abutting position is the spherical surface directly below the float or the spherical surface below, with the cooperation of the rod body and the limit device, an upward force can be applied to the float, so that the float moves toward the cylinder 2110 until it abuts against the second end of the cylinder 2110.

[0088] Please continue reading Figure 4In some embodiments, the limiting device is a first partition plate 2121 mounted on the inner wall of the cylinder 2110, and the first partition plate 2121 is provided with a second through hole 2122 and a plurality of third through holes 2123. The rod body passes through the second through hole 2122, and the cross-sectional area of ​​the preset position 2141 of the rod body above the second through hole 2122 is larger than the cross-sectional area of ​​the second through hole 2122.

[0089] Specifically, the cross-sectional area of ​​the portion above the preset position 2141 on the rod body may be gradually increased, and a protrusion may be provided at the preset position 2141 so that the cross-sectional area of ​​the preset position 2141 is larger than the cross-sectional area of ​​the second through hole 2122 .

[0090] It should be noted that the distance from the aforementioned preset position 2141 to the float is set based on the outer diameter of the float and the inner diameter of the cylinder 2110. Preferably, when the float and the cylinder 2110 are at the farthest relative position, the minimum distance between the float surface and the second end edge of the cylinder 2110 is 1 cm.

[0091] See also Figures 4 to 6 Further, the aforementioned gas-water separation device 2000 also includes a plurality of second gas-water separation mechanisms 2200. The second gas-water separation mechanism 2200 is provided with a third gas inlet 2210, an exhaust port 2220 and a first liquid discharge port 2230. The aforementioned exhaust port 2220 is located above the first liquid discharge port 2230. A second partition plate 2260 is provided between the aforementioned cylinder 2110 and the inner wall of the dirt storage box 1000, and the second partition plate 2260, the outer wall of the cylinder 2110 and the inner wall of the dirt storage box 1000 form a third cavity 1500. The first end of the cylinder 2110 is respectively communicated with a plurality of third gas inlets 2210, a plurality of exhaust ports 2220 are communicated with the gas source interface 1300, and a plurality of first liquid discharge ports 2230 are communicated with the third cavity 1500. A second drain port 1510 is provided on the side wall of the dirt storage box 1000 at the corresponding position of the third cavity 1500, and the second drain port 1510 is connected to the air inlet 1400. When in use, after the air source device 5000 is started, the airflow enters the cylinder 2110 from the first cavity 1100, and then enters the second gas-water separation mechanism 2200 through the third air inlet 2210. The gas part of the airflow flows out from the exhaust port 2220 after passing through the second gas-water separation mechanism 2200, and then enters the air source device 5000 through the air source interface 1300. The liquid part of the airflow flows out from the first drain port 2230 after passing through the second gas-water separation mechanism, enters the third cavity 1500, and then flows out through the second drain port 1510, and then enters the second cavity 1200 through the air inlet 1400, and can finally be discharged together with the dirt. The second gas-water separation mechanism 2200 is used to perform gas-water separation operation on the airflow in the first cavity 1100 to prevent liquid from entering the gas source device 5000 .

[0092] See also Figure 2Furthermore, a fourth one-way switch 1520 in the same direction as the discharge direction is installed between the second liquid discharge port 1510 and the air inlet 1400. The fourth one-way switch 1520 is used to block the airflow entering the third cavity 1500, and is used to prevent the airflow that should enter the second cavity 1200 from entering the third cavity 1500 through the second liquid discharge port 1510, and then entering the air source device 5000 through the first liquid discharge port 2230, the exhaust port 2220, and the air source interface 1300, forming a passage, thereby destroying the closed state of the second cavity 1200 during the sewage discharge operation.

[0093] See also Figure 5 and Figure 6 Specifically, the second gas-water separation mechanism 2200 includes a cover body 2240 and a base 2250. The cover body 2240 is provided with a first spiral chute 2241 with a notch facing downward, the starting end of the first spiral chute 2241 is connected to the third air inlet 2210, and the end of the first spiral chute 2241 is located below its starting end. The inner edge of the spiral chute extends downward to form a columnar through hole, which is the aforementioned exhaust port 2220. The first drain port 2230 is located at the bottom of the base 2250. The airflow enters the second gas-water separation mechanism 2200, and after passing through the first spiral chute 2241, the liquid part of the airflow remains in the spiral chute, and after being collected, it flows downward along the inner wall of the base 2250 and finally flows out through the first drain port 2230. The gas part of the airflow flows out through the exhaust port 2220.

[0094] Furthermore, the second liquid discharge port 1510 corresponds to the lowest position of the bottom of the third cavity 1500 and is used to discharge all the liquid collected at the bottom of the third cavity 1500 to prevent residue.

[0095] See also Figure 4 In some embodiments, the second partition 2260 is provided with a second spiral chute with a notch facing downward. The starting end of the second spiral chute is connected to the sewage inlet 1110, and the end of the second spiral chute is located below its starting end. After the dirt enters the second cavity 1200 through the sewage inlet 1110, it can move in the second spiral chute due to its own inertia. Most of the liquid in the dirt will remain in the second spiral chute, and then flow down along the outer wall of the cylinder 2110 or the inner wall of the sewage storage box 1000, and gather at the bottom of the first cavity 1100. It is used to prevent the dirt from splashing and generating droplets after entering the first cavity 1100, and prevent the droplets from entering the air source device 5000, so as to protect the air source device 5000.

[0096] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A pneumatic sewage discharge device, characterized in that: include: A dirt storage box (1000), wherein a first cavity (1100) and a second cavity (1200) are provided in the dirt storage box (1000), wherein the first cavity (1100) is located above the second cavity (1200); a dirt inlet (1110) is provided at a position corresponding to the first cavity (1100) of the dirt storage box (1000), and a dirt outlet (1210) is provided at a position corresponding to the second cavity (1200); and a preset hole is provided between the first cavity (1100) and the second cavity (1200). A first through hole (1120) of a diameter of 1.5 mm is provided on the first through hole (1120), and a switch (1130) is provided on the first through hole (1120). When the switch (1130) is in an on state, the first cavity (1100) and the second cavity (1200) can be connected; an air source interface (1300) and an air inlet (1400) are provided on the dirt storage box (1000); the air source interface (1300) is connected to the first cavity (1100); and the air inlet (1400) is connected to the second cavity (1200); A sewage suction pipe (3000), one end of which is used to connect to a toilet bowl or a toilet, and the other end of which is connected to the sewage inlet (1110); A sewage pipe (4000), one end of which is used to connect to an external main sewage pipe, and the other end of which is connected to the sewage outlet (1210); An air source device (5000) for generating a unidirectional airflow; Its air inlet end is in communication with the air source interface (1300), and its air outlet end is in communication with the air inlet (1400).

2. A pneumatic sewage discharge device as claimed in claim 1, characterized in that: The switch (1130) is a one-way switch in the same direction as the sewage discharge direction.

3. A pneumatic sewage discharge device as claimed in claim 2, characterized in that: The switch (1130) is a swing-type one-way valve, which is used as a first swing-type one-way valve.

4. A pneumatic sewage discharge device as claimed in claim 3, characterized in that: The first swing-type one-way valve comprises a valve seat (1131) and a valve flap (1132) hinged to the valve seat (1131); the valve flap (1132) comprises a flap (1132a) and a counterweight (1132b), and the hinge between the valve flap (1132) and the valve seat (1131) is located between the flap (1132a) and the counterweight (1132b).

5. A pneumatic sewage discharge device as claimed in claim 1, characterized in that: The air source device (5000) is a fan, the air inlet end of the fan is connected to the air source interface (1300), and the air outlet end of the fan is connected to the air inlet (1400).

6. A pneumatic sewage discharge device as claimed in claim 4, characterized in that: The number of the air source interfaces (1300) is several, and the number of the air inlets (1400) matches the number of the air source interfaces (1300); the number of the fans is greater than or equal to the number of the air source interfaces (1300); and a plurality of the fans are arranged in parallel, or are first connected in series and then in parallel.

7. A pneumatic sewage discharge device as claimed in claim 1, characterized in that: The sewage suction pipe (3000) is provided with a first one-way switch (3100) in the same direction as the sewage suction direction.

8. A pneumatic sewage discharge device as claimed in claim 7, characterized in that: The sewage discharge pipe (4000) is provided with a second one-way switch (4100) in the same direction as the sewage discharge direction.

9. A pneumatic sewage discharge device as claimed in claim 8, characterized in that: A water trap (4200) is provided between the second one-way switch (4100) and the sewage outlet (1210).

10. A pneumatic sewage discharge device as claimed in claim 8, characterized in that: The first one-way switch (3100) and / or the second one-way switch (4100) is a swing one-way valve, which is used as a second swing one-way valve, including a valve body (3110) and a valve cover (3120) that can be opened from the outside.

11. A pneumatic sewage discharge device as claimed in claim 10, characterized in that: The valve cover (3120) is provided with an air pipe interface (3130), the air pipe interface (3130) is located on the air flow outflow side of the second swing check valve disc, and the air pipe interface (3130) is equipped with an air circuit switch (3140).

12. A pneumatic sewage discharge device according to claim 11, characterized in that: A third one-way switch (5300) in the same direction as the air flow direction is installed between the exhaust end of the air source device (5000) and the air inlet (1400).

13. A pneumatic sewage discharge device as claimed in claim 1, characterized in that: A gas-water separation device (2000) is provided in the first cavity (1100), and the gas-water separation device (2000) is located between the first through hole (1120) and the gas source interface (1300).

14. A pneumatic sewage discharge device as claimed in claim 13, characterized in that: The gas-water separation device (2000) comprises a first gas-water separation mechanism (2100), wherein the first gas-water separation mechanism (2100) comprises: A cylinder (2110), wherein a first end of the cylinder (2110) is connected to the gas source interface (1300), a second end of the cylinder (2110) is communicated with the first cavity (1100), and the gas source interface (1300) is communicated with the first cavity (1100) through the second end of the cylinder (2110); a limiting mechanism (2120) is assembled in the cylinder (2110); The suspension (2130) is located below the second end of the cylinder (2110); a rod (2140) is mounted on the suspension (2130), and the rod (2140) is slidably connected to the limiting mechanism (2120); with the cooperation of the rod (2140) and the limiting mechanism (2120), the suspension (2130) and the cylinder (2110) can perform relative displacement within a preset length range; when the suspension (2130) abuts against the second end of the cylinder (2110), the interior of the cylinder (2110) and the interior of the dirt storage box (1000) can be separated; the density of the suspension (2130) is a preset value.

15. A pneumatic sewage discharge device as claimed in claim 14, characterized in that: The density of the suspension (2130) is less than or equal to the density of water.

16. A pneumatic sewage discharge device as claimed in claim 15, characterized in that: The cylinder (2110) is a vertically arranged cylinder, and the suspension (2130) is a sphere having a diameter greater than the inner diameter of the cylinder (2110).

17. A pneumatic sewage discharge device as claimed in claim 14, characterized in that: The limiting mechanism (2120) is a first partition (2121) assembled on the inner wall of the cylinder (2110), and the first partition (2121) is provided with a second through hole (2122) and a plurality of third through holes (2123); the rod body passes through the second through hole (2122), and the cross-sectional area of ​​the rod body at a preset position (2141) above the second through hole (2122) is larger than the cross-sectional area of ​​the second through hole (2122).

18. A pneumatic sewage discharge device as claimed in claim 14, characterized in that: The gas-water separation device (2000) further comprises a plurality of second gas-water separation mechanisms (2200), wherein the second gas-water separation mechanisms (2200) are provided with a third gas inlet (2210), an exhaust port (2220) and a first liquid discharge port (2230), wherein the exhaust port (2220) is located above the first liquid discharge port (2230); a second partition plate (2260) is provided between the cylinder (2110) and the inner wall of the dirt storage box (1000), and the second partition plate (2260) is connected to the outer wall of the cylinder (2110) and the dirt storage box (1000). 000) forms a third cavity (1500); the first end of the cylinder (2110) is respectively connected to a plurality of the third air inlets (2210), a plurality of the air outlets (2220) are connected to the air source interface (1300), and a plurality of the first liquid discharge ports (2230) are connected to the third cavity (1500); a second liquid discharge port (1510) is opened on the side wall at a position corresponding to the position of the dirt storage box (1000) and the third cavity (1500), and the second liquid discharge port (1510) is connected to the air inlet (1400).

19. A pneumatic sewage discharge device as claimed in claim 18, characterized in that: A fourth one-way switch (1520) in the same direction as the liquid discharge direction is installed between the second liquid discharge port (1510) and the air inlet (1400).

20. A pneumatic sewage removal device as claimed in claim 18, characterized in that: The second air-water separation mechanism (2200) comprises a cover body (2240) and a base (2250), the cover body (2240) is provided with a first spiral slide groove (2241) with a notch facing downward, the starting end of the first spiral slide groove (2241) is connected to the third air inlet (2210), and the end of the first spiral slide groove (2241) is located below the starting end thereof; The inner edge of the spiral slide groove extends downward to form a columnar through hole, which serves as the exhaust port (2220); the first liquid discharge port (2230) is located at the bottom of the base (2250).

21. A pneumatic sewage removal device as claimed in claim 18, characterized in that: The second liquid discharge port (1510) corresponds to the lowest position of the bottom of the third cavity (1500).

22. A pneumatic sewage removal device as claimed in claim 18, characterized in that: The second partition plate (2260) is provided with a second spiral chute with a notch pointing downward; the starting end of the second spiral chute is connected to the sewage inlet (1110), and the end of the second spiral chute is located below its starting end.

23. A pneumatic sewage discharge device as claimed in claim 1, characterized in that: The preset aperture is greater than or equal to 10 cm.

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