An anti-overflow and anti-clogging type underground toilet sewage lifting integrated device and method

Abstract

The application discloses a kind of overflow prevention and blockage prevention type underground toilet sewage lifting integrated equipment and method, it is related to sewage treatment technical field, integrated equipment includes water collecting tank, the water inlet tank is fixedly arranged on the water collecting tank, water inlet tank is equipped with sewage inlet pipe, sewage inlet pipe is communicated with the buffer tank fixedly arranged in water inlet tank;The bottom of the buffer tank is communicated with sewage outlet pipe away from the end of sewage inlet pipe, and the end of the sewage outlet pipe away from the buffer tank is communicated with the water collecting tank by water inlet assembly, to be used for inputting sewage into water collecting tank, water inlet assembly includes solid-liquid separation mechanism, to be used for separating impurities and sewage input into water collecting tank;Wherein, sewage lifting pump is arranged in the water collecting tank;The end of sewage inlet pipe of the application away from water inlet tank is connected with floor toilet sewage drain pipe, and the sewage in floor toilet can be discharged to buffer tank through sewage inlet pipe, and buffer tank can carry out pressure reduction treatment to input sewage.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sewage treatment, in particular to a full-overflow and blockage prevention type underground toilet sewage lifting integrated device and method. BACKGROUND

[0002] The toilet sewage and waste water is discharged, and the general method is to set a water collecting pit on the basement floor, collect the toilet sewage together, and then use the submersible pump to lift and discharge to the outdoor septic tank or sewage inspection well. Now many sewage lifting devices are used to replace this traditional underground drainage lifting method.

[0003] The sewage pressure discharge form of the prior art has many disadvantages, such as that the sundries in the sewage are easy to cause blockage, and must be regularly cleaned or crushed, and the sewage pump is often damaged due to blockage, and the sewage and sundries have a great impact on the environment during the cleaning process.

[0004] For example, the application file with publication number CN107938823A discloses a full-automatic sewage lifting device, and also discloses that the filter backwashing device is arranged at the water inlet, so that the water and sundries can be automatically separated, and the automatic residue discharge effect can be realized.

[0005] However, in the actual application process, due to the high floor height at present, when the sewage is discharged to the sewage lifting device under the action of gravity, the impact force is too large, which can easily cause damage to the solid-liquid separation device or the sewage lifting pump. The sewage lifting device is usually designed inside the underground water storage tank, and it is not convenient to install and maintain. SUMMARY

[0006] The present application provides a full-overflow and blockage prevention type underground toilet sewage lifting integrated device and method, which can solve the following problems existing in the prior art:

[0007] The existing floor height is high, and the potential energy of the sewage is large during the falling process. The solid-liquid separation device or the sewage lifting pump is easily damaged under the action of the large water flow impact force, and is not easy to maintain and replace.

[0008] A full-overflow and blockage prevention type underground toilet sewage lifting integrated device, comprising a water collecting tank, a water inlet tank is fixedly arranged on the water collecting tank, a sewage inlet pipe is arranged on the water inlet tank, and the sewage inlet pipe is communicated with a buffer tank fixedly arranged in the water inlet tank;

[0009] The bottom of the buffer tank away from the sewage inlet pipe is communicated with a sewage outlet pipe, and the sewage outlet pipe away from the buffer tank is communicated with the water collecting tank through a water inlet assembly, so as to input the sewage into the water collecting tank. The water inlet assembly comprises a solid-liquid separation mechanism for separating the sundries and the sewage input into the water collecting tank;

[0010] The sewage lifting pump is arranged in the water collecting tank and connected with the drainage assembly, so as to drain the sewage input into the water collecting tank.

[0011] Preferably, the buffer tank comprises a buffer plate arranged in the water inlet tank in an inclined and fixed manner, and side plates are respectively arranged on both sides of the buffer plate.

[0012] The buffer plate, the two groups of side plates and the sealing plates form a buffer cavity, and the buffer cavity is inclined, with the high part being communicated with the sewage inlet pipe and the low part being communicated with the sewage outlet pipe.

[0013] Preferably, the water inlet assembly comprises a first water inlet pipe and a second water inlet pipe which are Y-shaped and synchronously communicated with the sewage outlet pipe, the other end of the first water inlet pipe is communicated with a first water conveying pipe, the end of the first water conveying pipe is communicated with a solid-liquid separation mechanism fixedly arranged in the water collecting tank, the other end of the second water inlet pipe is communicated with a second water conveying pipe, and the end of the second water conveying pipe is communicated with the solid-liquid separation mechanism fixedly arranged in the water collecting tank.

[0014] Preferably, the solid-liquid separation mechanism comprises a separation cylinder fixedly arranged in the water collecting tank, and one end of the separation cylinder is communicated with the water conveying pipe.

[0015] The filter cylinder is coaxially fixedly arranged in the separation cylinder, one side of the filter cylinder is provided with an opening, the opening faces the water conveying pipe, and a plurality of groups of water filtering holes are uniformly arranged on the wall of the filter cylinder.

[0016] Preferably, the sewage lifting pump is fixedly arranged on the water conveying cylinder, and a water conveying opening is arranged on the water conveying cylinder.

[0017] The output end of the sewage lifting pump is communicated with the water conveying opening and the separation cylinder, and a plurality of groups of water conveying grooves are arranged on the wall of the water conveying cylinder in a circumferential array.

[0018] Preferably, a hydraulic control one-way valve is arranged in the water conveying opening, so as to control the flow direction of the sewage in the water conveying opening.

[0019] The drainage assembly comprises a first one-way valve arranged between the first water inlet pipe and the second water inlet pipe, so as to control the sewage to flow only in the direction of the water conveying pipe, one end of the first water conveying pipe away from the solid-liquid separation mechanism is connected with a first drainage pipe, one end of the second water conveying pipe away from the solid-liquid separation mechanism is connected with a second drainage pipe, the other end of the second drainage pipe is connected with the first drainage pipe, and a control valve is arranged between the first drainage pipe and the second drainage pipe.

[0020] Preferably, two groups of sewage lifting pumps are arranged in the water collecting tank, and the two groups of sewage lifting pumps are respectively connected with the separation cylinders on the corresponding side.

[0021] Preferably, a plurality of groups of filtering holes are uniformly arranged on the side plates on both sides; a water outlet is further arranged on the water collecting tank and is communicated with the water inlet tank.

[0022] Preferably, an exhaust pipe is further arranged on the top of the water inlet tank.

[0023] Preferably, a plurality of groups of backflush pipes are arranged on the sides of the side plates away from each other, the backflush pipes are in a horn-shaped structure, each backflush pipe is connected with a branch backwater pipe, and the branch backwater pipes on both sides are connected with the solid-liquid separation mechanism through a main backwater pipe.

[0024] Preferably, a second one-way valve is further arranged between the main backwater pipes and is used for water delivery to the branch backwater pipes.

[0025] A working method of a full-overflow-preventing and blockage-preventing underground toilet sewage lifting integrated device, applied to the full-overflow-preventing and blockage-preventing underground toilet sewage lifting integrated device, comprises the following steps:

[0026] The sewage in the floor toilet is discharged to the buffer tank through the sewage inlet pipe;

[0027] The sewage after passing through the buffer tank is delivered to the sewage outlet pipe under the action of gravity and is delivered to the water inlet assembly through the sewage outlet pipe;

[0028] The sewage is discharged to the water collecting tank through the water inlet assembly, and the solid-liquid separation mechanism arranged at the tail end of the water inlet assembly is used for solid-liquid separation treatment of the sewage;

[0029] The sewage after the solid-liquid separation is discharged to the water collecting tank;

[0030] The liquid level sensor arranged in the water collecting tank is used for monitoring the sewage quantity, when the preset threshold is reached, the sewage lifting pump discharges the sewage input into the water collecting tank through the water outlet assembly, and the process is repeated.

[0031] The full-overflow-preventing and blockage-preventing underground toilet sewage lifting integrated device and method have the following beneficial effects:

[0032] 1) The sewage inlet pipe of the full-overflow-preventing and blockage-preventing underground toilet sewage lifting integrated device is connected with the floor toilet sewage discharge pipe at the end away from the water inlet tank, the sewage in the floor toilet can be discharged to the buffer tank through the sewage inlet pipe, the buffer tank can perform pressure reduction treatment on the input sewage, so as to reduce the impact force of the sewage input into the water collecting tank, on the one hand, the sewage treatment effect of the subsequent process can be ensured, and on the other hand, the phenomenon that the impact force is too large to cause damage to the sewage treatment equipment can be avoided, and the service life of the equipment is prolonged.

[0033] 2) In the application, the sewage after the buffer tank can be first delivered to the sewage outlet pipe under the action of gravity, and then delivered to the water inlet assembly through the sewage outlet pipe. During the process of discharging the sewage from the water inlet assembly to the water collecting tank, the solid-liquid separation mechanism arranged at the end of the water inlet assembly can be used to separate the solid and liquid in the sewage. Only after the solid-liquid separation, the sewage can be discharged into the water collecting tank, so as to avoid the damage of the sewage lifting equipment in the water collecting tank caused by solid impurities;

[0034] 3) In the application, when the water delivery pipe is in a normal state of delivering water into the water collecting tank, the hydraulic control check valve can only send water to the water collecting tank, and the control valve controls the first drain pipe and the second drain pipe to be in a closed state. When the liquid level sensor detects that the sewage liquid level in the water collecting tank reaches a preset threshold, the sewage lifting pump is started, and at the same time, the hydraulic control check valve can only send water to the separation cylinder, and the control valve opens the first drain pipe and the second drain pipe. The sewage lifting pump can pump the sewage in the water collecting tank into the separation cylinder through the water inlet, and then deliver it to the separation cylinder through the backflushing mode, so as to backflush the impurities attached to the filter hole, realize the backflushing effect of the filter cylinder, and then the sewage can be delivered to the first drain pipe and the second drain pipe along the first water delivery pipe and the second water delivery pipe respectively, and finally discharged to the outdoor sewage inspection well or the above-ground septic tank through the first drain pipe. Therefore, the application can effectively avoid the blockage of the filter cylinder by setting the backflushing mode, so as to ensure the stable operation of the sewage lifting equipment.

[0035] 4) The application sets two groups of sewage lifting pumps. When in a normal state of discharging water, any one group of sewage lifting pump can be started to discharge water, and the other group of sewage lifting pump is in a shutdown state, so that the water delivery pipe can normally deliver water into the water collecting tank, and the water inlet and water outlet of the water collecting tank are synchronized. When the water inlet of the sewage inlet pipe is too large, the liquid level sensor exceeds the preset threshold and cannot be lowered, the application can start the two groups of sewage lifting pumps simultaneously to realize the effect of quickly discharging the sewage in the water collecting tank, and avoid the overflow of the water collecting tank.

[0036] 5) In the application, when the two groups of sewage lifting pumps are started simultaneously to discharge water, since the sewage cannot be input into the water collecting tank, in order to avoid the phenomenon that the sewage stays in the sewage inlet pipe and backflows, the application sets a filter hole in the side plate, so that the sewage entering the buffer cavity can be first discharged into the water inlet tank through the filter hole for buffering, and the filter hole also has the effect of filtering the solid impurities in the sewage. Then, the sewage can be discharged into the water collecting tank through the water outlet at the bottom of the water inlet tank, which can effectively avoid the overflow of the sewage inlet pipe and the buffer cavity. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1A structural schematic view of a full-overflow-preventing and blockage-preventing underground toilet sewage lifting integrated equipment provided by the present application is shown in the figure.

[0038] Figure 2 A side view structural schematic view of a full-overflow-preventing and blockage-preventing underground toilet sewage lifting integrated equipment provided by the present application is shown in the figure.

[0039] Figure 3 A front view structural schematic view of a full-overflow-preventing and blockage-preventing underground toilet sewage lifting integrated equipment provided by the present application is shown in the figure.

[0040] Figure 4 A sectional view structural schematic view of a full-overflow-preventing and blockage-preventing underground toilet sewage lifting integrated equipment provided by the present application is shown in the figure. Figure 1

[0041] Figure 5 A sectional view structural schematic view of a full-overflow-preventing and blockage-preventing underground toilet sewage lifting integrated equipment provided by the present application is shown in the figure. Figure 2

[0042] Figure 6 An internal structural schematic view of a full-overflow-preventing and blockage-preventing underground toilet sewage lifting integrated equipment provided by the present application is shown in the figure.

[0043] Figure 7 A sectional view structural schematic view of a full-overflow-preventing and blockage-preventing underground toilet sewage lifting integrated equipment provided by the present application is shown in the figure. Figure 3

[0044] Figure 8 A structural schematic view of a main water return pipe in a full-overflow-preventing and blockage-preventing underground toilet sewage lifting integrated equipment provided by the present application is shown in the figure.

[0045] Figure 9 A structural schematic view of a backflush pipe in a full-overflow-preventing and blockage-preventing underground toilet sewage lifting integrated equipment provided by the present application is shown in the figure.

[0046] Figure 10 A structural schematic view of a branch water return pipe in a full-overflow-preventing and blockage-preventing underground toilet sewage lifting integrated equipment provided by the present application is shown in the figure.

[0047] Explanation of reference signs:

[0048] ​​​1, sewage inlet pipe; 2, water inlet tank; 3, water collecting tank; 4, first water conveying pipe; 5, sewage lifting pump; 6, solid-liquid separation mechanism; 7, buffer tank; 8, main backwater pipe; 101, first valve; 201, first tank door; 202, exhaust pipe; 203, sewer outlet; 301, second tank door; 401, second water conveying pipe; 402, first drain pipe; 403, first water inlet pipe; 404, second water inlet pipe; 405, second valve; 406, sewage outlet pipe; 407, second drain pipe; 408, control valve; 501, water conveying cylinder; 502, water conveying groove; 503, water conveying opening; 601, separation cylinder; 602, filter cylinder; 603, filter hole; 701, buffer plate; 702, side plate; 703, filter hole; 704, sealing plate; 705, buffer cavity; 706, first one-way valve; 801, second one-way valve; 802, branch backwater pipe; 803, backflush pipe. DETAILED DESCRIPTION

[0049] The specific embodiments of the present application are described in detail below, but it should be understood that the scope of protection of the present application is not limited by the specific embodiments.

[0050] Example 1

[0051] As shown in the drawings, the sewage lifting integrated device provided by the embodiment of the present application comprises a water collecting tank 3, a water inlet tank 2 is fixedly arranged on the water collecting tank 3, a sewage inlet pipe 1 is arranged on the water inlet tank 2, and the sewage inlet pipe 1 is in communication with a buffer tank 7 fixedly arranged in the water inlet tank 2. Figures 1 to 4 It should be noted that the sewage inlet pipe 1 of the present embodiment is connected with a floor toilet sewage drain pipe at the end far away from the water inlet tank 2, and the sewage in the floor toilet can be discharged to the buffer tank 7 through the sewage inlet pipe 1, and the buffer tank 7 can perform pressure reduction treatment on the input sewage to reduce the impact force of the sewage input into the water collecting tank 3, which can on the one hand guarantee the subsequent sewage treatment effect and on the other hand avoid the phenomenon of damage to the sewage treatment equipment caused by excessive impact force, thereby prolonging the service life thereof.

[0052] Specifically, the sewage inlet pipe 1 of the present embodiment is provided with a first valve 101 for controlling the opening or closing of the sewage inlet pipe 1.

[0053] In addition, the opening end of the water inlet tank 2 is provided with a first tank door 201, and the opening end of the water collecting tank 3 is provided with a second tank door 301, and the first tank door 201 and the second tank door 301 can be opened in the present embodiment, so as to facilitate the maintenance and repair of the structures in the water inlet tank 2 and the water collecting tank 3.

[0054] Please refer to Figures 5-7In the embodiment, the bottom of the buffer tank 7 is communicated with the sewage outlet pipe 406 away from one end of the sewage inlet pipe 1, and the end of the sewage outlet pipe 406 away from the buffer tank 7 is communicated with the water collecting tank 3 through the water inlet assembly, so as to input the sewage into the water collecting tank 3. The water inlet assembly comprises the solid-liquid separation mechanism 6, so as to separate the impurities and the sewage input into the water collecting tank 3. Specifically, the sewage after passing through the buffer tank 7 can be firstly delivered to the sewage outlet pipe 406 under the action of gravity, and then delivered to the water inlet assembly through the sewage outlet pipe 406. During the process of the sewage being discharged from the water inlet assembly to the water collecting tank 3, the solid-liquid separation mechanism 6 arranged at the end of the water inlet assembly can be used to perform the solid-liquid separation treatment on the sewage. Only after the solid-liquid separation, the sewage can be discharged into the water collecting tank 3, so as to avoid the phenomenon that the solid impurities damage the sewage lifting equipment in the water collecting tank 3.

[0055] As an embodiment of the present embodiment, the water collecting tank 3 is arranged with the sewage lifting pump 5, and the sewage lifting pump 5 is connected with the drainage assembly, so as to discharge the sewage input into the water collecting tank 3.

[0056] It can be explained that the present embodiment can be provided with the liquid level sensor or the float ball sensor in the water collecting tank 3, so as to monitor the liquid level height of the sewage in the water collecting tank 3 in real time. When the monitoring reaches the preset threshold value, the present embodiment can cooperate with the sewage lifting pump 5 and the drainage assembly to discharge the sewage in the water collecting tank 3, so as to avoid the phenomenon that the water collecting tank 3 is full, and ensure the normal operation of the sewage lifting equipment.

[0057] In addition, the present embodiment does not limit the specific type of the liquid level sensor and the float ball sensor, and can meet the actual monitoring requirement of the liquid level height in the water collecting tank 3. For example, the liquid level sensor can adopt the photoelectric liquid level sensor FS-IR1902D, and the float ball sensor can adopt the float ball type liquid level transmitter NI-GCT-AE-FB01.

[0058] Embodiment 2

[0059] Based on the embodiment 1, please refer to Figures 4-7 The buffer tank 7 comprises the buffer plate 701 arranged in the water inlet tank 2 in an inclined and fixed manner, and the side plates 702 are arranged on both sides of the buffer plate 701 in a fixed manner. Two groups of side plates 702 are arranged with the sealing plates 704 in a fixed manner, and the buffer plate 701, the two groups of side plates 702 and the sealing plates 704 form the buffer cavity 705. The buffer cavity 705 is inclined, the high part is communicated with the sewage inlet pipe 1, and the low part is communicated with the sewage outlet pipe 406. It can be explained that when the toilet sewage is input into the buffer tank 7 through the sewage inlet pipe 1, the sewage is first impacted on the buffer plate 701. Since the buffer plate 701 is arranged in an inclined manner, the impact force of the sewage can be effectively reduced, and the sewage in the buffer cavity 705 can be discharged from the sewage outlet pipe 406 under the action of gravity.

[0060] In addition, the sealing plate 704 of the present embodiment is detachably fixed on the two side plates 702, so as to facilitate the maintenance and repair of the inside of the buffer tank 7.

[0061] In the present embodiment, referring to Figure 1 and Figures 4-7 , the water inlet assembly includes a first water inlet pipe 403 and a second water inlet pipe 404 which are Y-shaped and synchronously communicated with the sewage outlet pipe 406, the other end of the first water inlet pipe 403 is communicated with the first water conveying pipe 4, the end of the first water conveying pipe 4 is communicated with the solid-liquid separation mechanism 6 fixedly arranged in the water collecting tank 3, the other end of the second water inlet pipe 404 is communicated with the second water conveying pipe 401, and the end of the second water conveying pipe 401 is communicated with the solid-liquid separation mechanism 6 fixedly arranged in the water collecting tank 3; it can be explained that after the sewage is discharged through the sewage outlet pipe 406, it is automatically divided into two water flows, one is conveyed to the first water conveying pipe 4 through the first water inlet pipe 403, and the other is conveyed to the second water conveying pipe 401 through the second water inlet pipe 404, and the sewage can be conveyed to the solid-liquid separation mechanism 6 through the first water conveying pipe 4 and the second water conveying pipe 401 respectively for solid-liquid separation treatment, so that the filtered impurities such as feces and paper towels can be left in the solid-liquid separation mechanism 6, and the filtered sewage is conveyed to the water collecting tank 3 to avoid the subsequent solid impurities from causing blockage of the sewage lifting equipment.

[0062] Specifically, referring to Figure 7 , the solid-liquid separation mechanism 6 includes a separation cylinder 601 fixed in the water collecting tank 3, one end of the separation cylinder 601 is communicated with the water conveying pipe, wherein the separation cylinder 601 is coaxially fixedly arranged with a filter cylinder 602, one side of the filter cylinder 602 is provided with an opening, the opening faces the water conveying pipe, and a plurality of groups of water filtering holes 603 are uniformly arranged on the cylinder wall of the filter cylinder 602; it can be explained that the sewage entering the first water conveying pipe 4 and the second water conveying pipe 401 is conveyed into the filter cylinder 602, and the solid impurities in the sewage can be filtered through the water filtering holes 603 arranged on the filter cylinder 602, and the filtered sewage is conveyed to the water collecting tank 3, thereby realizing the solid-liquid separation effect of the sewage.

[0063] As a further scheme of the present embodiment, referring to Figures 6-7 , the sewage lifting pump 5 is fixed on the water conveying cylinder 501, and the water conveying cylinder 501 is provided with a water conveying opening 503, wherein the output end of the sewage lifting pump 5 is communicated with the water conveying opening 503 and the separation cylinder 601 respectively, and a plurality of groups of water conveying grooves 502 are arranged on the cylinder wall of the water conveying cylinder 501 in a circumferential array; it can be explained that the filtered sewage after the solid-liquid separation mechanism 6 can be discharged into the water conveying cylinder 501 through the water conveying opening 503, and then discharged into the water collecting tank 3 through the water conveying grooves 502 arranged on the water conveying cylinder 501, so as to pre-collect the sewage.

[0064] In the present embodiment, referring toFigures 1-2 And Figures 4-5 The water inlet 503 is provided with a hydraulic control check valve for controlling the flow direction of the sewage in the water inlet 503; wherein the drainage assembly comprises a first check valve 706 arranged between the first water inlet pipe 403 and the second water inlet pipe 404 for controlling the flow direction of the sewage only towards the water inlet pipe, one end of the first water inlet pipe 4 away from the solid-liquid separation mechanism 6 is connected with the first drainage pipe 402, one end of the second water inlet pipe 401 away from the solid-liquid separation mechanism 6 is connected with the second drainage pipe 407, the other end of the second drainage pipe 407 is connected with the first drainage pipe 402, and a control valve 408 is arranged between the first drainage pipe 402 and the second drainage pipe 407;

[0065] It should be noted that when the water inlet pipe is in a normal state of water inlet to the water collecting tank 3, the hydraulic control check valve adjusts the water inlet 503 to send water only to the water collecting tank 3, and the control valve 408 controls the first drainage pipe 402 and the second drainage pipe 407 to be in a closed state. When the liquid level sensor detects that the sewage liquid level in the water collecting tank 3 reaches a preset threshold, the sewage lifting pump 5 is started, at the same time, the hydraulic control check valve adjusts the water inlet 503 to send water only to the separation cylinder 601, and the control valve 408 opens the first drainage pipe 402 and the second drainage pipe 407. The sewage lifting pump 5 can pump the sewage in the water collecting tank 3 into the separation cylinder 601 through the water inlet 503 and then deliver it to the separation cylinder 601 by backwashing, thereby backwashing the impurities attached to the filter hole 603 and achieving the effect of backwashing the filter cylinder 602. The sewage can be delivered to the first drainage pipe 402 and the second drainage pipe 407 along the first water inlet pipe 4 and the second water inlet pipe 401 respectively, and finally discharged to the outdoor sewage inspection well or the above-ground septic tank through the first drainage pipe 402. Therefore, the embodiment can effectively avoid the phenomenon of blockage of the filter cylinder 602 by setting a backwashing mode, so as to ensure the stable operation of the sewage lifting equipment.

[0066] In addition, please refer to Figure 1 The first drainage pipe 402 is further provided with a second valve 405 for controlling the connection or disconnection of the first drainage pipe 402 with the outdoor sewage inspection well or the above-ground septic tank.

[0067] Please refer to Figure 4 And Figure 6As a further scheme of the embodiment, two groups of sewage lifting pumps 5 are arranged in the water collecting tank 3 respectively, and the two groups of sewage lifting pumps 5 are connected with the corresponding one side of the separation cylinder 601 respectively; specifically, by arranging the two groups of sewage lifting pumps 5, when in the normal drainage state, any one group of sewage lifting pumps 5 can be started to carry out the drainage treatment, and the other group of sewage lifting pumps 5 is in the shutdown state, so that the water conveying pipe can normally convey water into the water collecting tank 3, and the water inlet and drainage of the water collecting tank 3 are ensured to be carried out synchronously, when the water inlet amount of the sewage water inlet pipe 1 is too large, the liquid level sensor exceeds the preset threshold value and cannot be lowered, the two groups of sewage lifting pumps 5 of the embodiment can be started synchronously, the sewage in the water collecting tank 3 is quickly discharged, and the overflow phenomenon of the water collecting tank 3 is avoided.

[0068] As a further technical scheme of the embodiment, please refer to Figures 4-5 and Figures 8-10 , a plurality of groups of filter holes 703 are uniformly arranged on the two side plates 702, and a sewage outlet 203 communicating with the water inlet tank 2 is further arranged on the water collecting tank 3; it can be explained that when the two groups of sewage lifting pumps 5 are started synchronously to carry out drainage, since sewage cannot be input into the water collecting tank, in order to avoid the phenomenon that sewage stays in the sewage water inlet pipe 1 and appears backflow, the filter holes 703 arranged on the side plates 702 are used, so that the sewage entering the buffer cavity 705 can be first discharged into the water inlet tank 2 through the filter holes 703 for buffering, the filter holes 703 also have the effect of filtering the solid impurities in the sewage, and then the sewage is discharged into the water collecting tank 3 through the sewage outlet 203 at the bottom of the water inlet tank 2, which can effectively avoid the overflow phenomenon of the sewage water inlet pipe 1 and the buffer cavity 705.

[0069] In addition, an exhaust pipe 202 is further arranged at the top of the water inlet tank 2; it should be noted that in the process of discharging sewage into the water collecting tank 3, the gas in the water collecting tank 3 can be sequentially discharged through the sewage outlet 203 and the exhaust pipe 202 under the extrusion of the sewage, so as to balance the internal and external pressures of the water collecting tank 3 and the water inlet tank 2, and correspondingly, by arranging the exhaust pipe 202, the sewage odor of the water collecting tank 3 can be discharged and treated.

[0070] A working method of the anti-overflow and anti-clogging type underground toilet sewage lifting integrated equipment, comprising the following steps:

[0071] Please refer to Figures 1-2 and Figures 4-5 , S1, the sewage in the floor toilet is discharged into the buffer tank 7 through the sewage water inlet pipe 1;

[0072] S2, the sewage after passing through the buffer tank 7 is conveyed to the sewage water outlet pipe 406 under the action of gravity, and is conveyed to the water inlet assembly through the sewage water outlet pipe 406;

[0073] S3, in the process of sewage being discharged from the water inlet assembly to the water collecting tank 3, the solid-liquid separation mechanism 6 arranged at the end of the water inlet assembly is used to separate the solid and liquid in the sewage;

[0074] S4, the sewage after the solid-liquid separation is discharged into the water collecting tank 3;

[0075] S5, the liquid level sensor arranged in the water collecting tank 3 is used to monitor the amount of the sewage, when the preset threshold is reached, the sewage lifting pump 5 discharges the sewage in the water collecting tank 3 through the water outlet assembly, and the process is repeated.

[0076] Embodiment 3

[0077] Based on the embodiment 2, the following can be referred to Figures 4-5 and Figures 8-10 In the process of the sewage in the buffer tank 7 being discharged from the filter hole 703 to the water inlet tank 2, the solid impurities are likely to block the filter hole 703, in the embodiment, a plurality of groups of backflush pipes 803 are arranged on the side of the two side plates 702 away from each other, the backflush pipes 803 are in the shape of a horn, each backflush pipe 803 is connected with the branch backwater pipe 802, the two branch backwater pipes 802 are connected with the solid-liquid separation mechanism 6 through the main backwater pipe 8, and the second one-way valve 801 for supplying water to the branch backwater pipe 802 is arranged between the main backwater pipes 8. It can be explained that in the process of the sewage lifting pump 5 of the embodiment pumping the sewage in the water collecting tank 3 into the water inlet tank 2 and then conveying the sewage to the separation cylinder 601 through the backflush mode, part of the sewage is conveyed to the first water supply pipe 4, and the other part of the sewage is branched to the main backwater pipe 8, the sewage in the main backwater pipe 8 can be conveyed to the backflush pipe 803 through the branch backwater pipe 802, the sewage sprayed from the backflush pipe 803 can flush the filter hole 703, thereby achieving the effect of cleaning the filter hole 703, effectively avoiding the blocking phenomenon, and manual cleaning of the filter hole 703 is not needed, and the overflow phenomenon is avoided.

[0078] The above disclosure is only a few specific embodiments of the present application, but the embodiments of the present application are not limited to this, any changes that can be thought of by those skilled in the art should fall within the protection scope of the present application.

Claims

1. An integrated sewage lifting device for underground toilets that prevents overflow and blockage, comprising a water collection tank (3), characterized in that, The water collection tank (3) is fixedly provided with an inlet tank (2), and the inlet tank (2) is provided with a sewage inlet pipe (1). The sewage inlet pipe (1) is connected to a buffer tank (7) fixedly provided in the inlet tank (2). The bottom of the buffer tank (7) is connected to the sewage outlet pipe (406) at one end away from the sewage inlet pipe (1). The sewage outlet pipe (406) is connected to the water collection tank (3) at one end away from the buffer tank (7) through the water inlet assembly, so as to input sewage into the water collection tank (3). The water inlet assembly includes a solid-liquid separation mechanism (6) for separating impurities and sewage input into the water collection tank (3). The water collection tank (3) is equipped with a sewage lift pump (5), which is connected to the drainage assembly to discharge the sewage entering the water collection tank (3). The buffer tank (7) includes a buffer plate (701) that is fixedly arranged at an inclination in the water inlet tank (2), and side plates (702) are fixedly arranged on both sides of the buffer plate (701); sealing plates (704) are fixedly arranged on the two sets of side plates (702). The buffer plate (701), the two sets of side plates (702) and the sealing plates (704) enclose a buffer cavity (705). The buffer cavity (705) is inclined, and its high part is connected to the sewage inlet pipe (1) and its low part is connected to the sewage outlet pipe (406). The water inlet assembly includes a first water inlet pipe (403) and a second water inlet pipe (404) that are synchronously connected to the sewage outlet pipe (406) in a Y-shape. The other end of the first water inlet pipe (403) is connected to the first water delivery pipe (4), and the end of the first water delivery pipe (4) is connected to the solid-liquid separation mechanism (6) fixedly arranged in the water collection tank (3). The other end of the second water inlet pipe (404) is connected to the second water delivery pipe (401), and the end of the second water delivery pipe (401) is connected to the solid-liquid separation mechanism (6) fixedly arranged in the water collection tank (3). Several sets of filter holes (703) are evenly opened on the side plates (702) on both sides; a drain (203) connected to the water inlet tank (2) is also opened on the water collection tank (3); an exhaust pipe (202) is also opened on the top of the water inlet tank (2). Several sets of backflush pipes (803) are arranged on the side of the two side plates (702) that are far apart from each other. The backflush pipes (803) are in the shape of a trumpet. Each backflush pipe (803) is connected to the branch return water pipe (802). The branch return water pipes (802) on both sides are connected to the solid-liquid separation mechanism (6) through the main return water pipe (8). A second one-way valve (801) that only supplies water to the branch return water pipe (802) is also arranged between the main return water pipes (8).

2. The anti-overflow and anti-clogging integrated sewage lifting equipment for underground toilets as described in claim 1, characterized in that, The solid-liquid separation mechanism (6) includes a separation cylinder (601) fixed in the water collection tank (3), and one end of the separation cylinder (601) is connected to the water supply pipe; The separator (601) is coaxially fixedly provided with a filter cylinder (602), and the filter cylinder (602) has an opening on one side facing the water supply pipe. Several sets of filter holes (603) are evenly opened on the cylinder wall of the filter cylinder (602).

3. The anti-overflow and anti-clogging integrated sewage lifting equipment for underground toilets as described in claim 2, characterized in that, The sewage lift pump (5) is fixed on the water delivery cylinder (501), and the water delivery cylinder (501) is provided with a water delivery port (503). The output end of the sewage lift pump (5) is connected to the water inlet (503) and the separation cylinder (601) respectively. Several sets of water delivery tanks (502) are arranged in a circumferential array on the cylinder wall of the water delivery cylinder (501).

4. The anti-overflow and anti-clogging integrated sewage lifting equipment for underground toilets as described in claim 3, characterized in that, The water inlet (503) is equipped with a hydraulic check valve to control the flow direction of sewage in the water inlet (503); The drainage assembly includes a first one-way valve (706) disposed between the first inlet pipe (403) and the second inlet pipe (404) to control the sewage to flow only in the direction of the water supply pipe. The end of the first water supply pipe (4) away from the solid-liquid separation mechanism (6) is connected to the first drain pipe (402). The end of the second water supply pipe (401) away from the solid-liquid separation mechanism (6) is connected to the second drain pipe (407). The other end of the second drain pipe (407) is connected to the first drain pipe (402). A control valve (408) is provided between the first drain pipe (402) and the second drain pipe (407).

5. The anti-overflow and anti-clogging integrated sewage lifting equipment for underground toilets as described in claim 2, characterized in that, Two sets of sewage lift pumps (5) are respectively installed in the water collection tank (3), and the two sets of sewage lift pumps (5) are respectively connected to the separation cylinder (601) on the corresponding side.

6. A working method for an integrated sewage lifting device for underground toilets that prevents overflow and blockage, characterized in that, The integrated sewage lifting device for anti-overflow and anti-clogging underground toilets, as described in any one of claims 1-5, comprises the following steps: Sewage from the toilets on each floor is discharged into the buffer tank (7) through the sewage inlet pipe (1); After passing through the buffer tank (7), the sewage is transported to the sewage outlet pipe (406) under the action of gravity, and then transported to the water inlet assembly through the sewage outlet pipe (406); During the process of sewage being discharged from the inlet component to the collection tank (3), the sewage is treated by solid-liquid separation mechanism (6) installed at the end of the inlet component; After solid-liquid separation, the wastewater is discharged into the collection tank (3); The sewage volume is monitored by a liquid level sensor installed in the water collection tank (3). When the preset threshold is reached, the sewage lift pump (5) discharges the sewage into the water collection tank (3) through the drainage component, and so on.

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