A cleaning method and a cleaning sewage suction truck

Abstract

The application provides a kind of cleaning sewage suction truck tank structure, cleaning sewage suction method and cleaning sewage suction truck, belongs to the technical field of sanitation vehicles, comprising: tank body;Partition, at least one clean water tank, at least one sewage tank and at least one conversion tank are formed;Clean water tank can be connected with water outlet structure, sewage tank can be connected with sewage suction structure, conversion tank can be connected with water outlet structure and sewage suction structure.The application provides a kind of cleaning sewage suction truck tank structure, when carrying out dredging operation, clean water is contained in clean water tank and conversion tank, and clean water in conversion tank is used first to carry out dredging operation;When carrying out sewage suction operation, sewage tank is used to contain sewage first, and then conversion tank is used to store sewage, the volume of clean water and sewage is improved, thereby the sustainable operation time of cleaning sewage suction truck is improved;And whether clean water in clean water tank and conversion tank is used up or not, sewage tank can be used to store sewage for sewage suction operation, to ensure that sewage suction operation is carried out smoothly.

Description

Technical Field

[0001] This invention relates to the field of sanitation vehicle technology, specifically to a cleaning and vacuuming truck tank structure, a cleaning and vacuuming method, and a cleaning and vacuuming truck. Background Technology

[0002] Sewage suction trucks are a new type of sanitation vehicle used for collecting and transporting sewage, and cleaning work areas to prevent secondary pollution. They are fast, have a large capacity, and are easy to transport, making them particularly suitable for pumping, loading, and unloading sludge from sewers. The tank of a sewage suction truck includes a clean water tank and a wastewater tank. The clean water tank contains clean water, which is used for pipe unclogging via a high-pressure pump. The wastewater tank holds wastewater through negative pressure pumping, which is then transported and dumped. However, the fixed structure of the clean water and wastewater tanks means their fixed volumes, limiting the truck's continuous operating time during each cleaning and suction operation.

[0003] Chinese patent documents CN217460876U and CN211774491U disclose a cleaning and sewage suction truck, in which a movable compartment assembly or flexible partition plate is installed inside the tank to divide the tank into a clean water tank and a sewage tank. Therefore, the volume occupied by the clean water tank and the sewage tank can be changed to adapt to various operating conditions. However, installing moving parts (movable compartment assembly or flexible partition plate) inside the tank requires high manufacturing precision and sealing, and is not easy to maintain.

[0004] Chinese patent document CN211922460U discloses a cleaning and vacuuming truck tank, including a clean water tank, a wastewater tank, and a connecting component. The connecting component connects the clean water tank and the wastewater tank. By setting up the connecting component, the clean water tank and the wastewater tank are connected, allowing the cleaning and vacuuming tank to flexibly switch between three working modes: acting as a clean water tank only, acting as a wastewater tank only, and acting as both simultaneously, thus improving the effective utilization rate of the cleaning and vacuuming tank. However, if both the clean water tank and the wastewater tank are filled with clean water before the dredging operation, and the amount of clean water used is small, leaving some clean water in the clean water tank and the wastewater tank still full, vacuuming cannot be performed (because there is no space to store the wastewater). Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defects of the prior art, which is that the installation of moving parts inside the tank requires high manufacturing precision and sealing, is not easy to maintain, and cannot smoothly carry out the sewage suction operation. Thus, the present invention provides a tank structure for a cleaning and sewage suction truck, a cleaning and sewage suction method, and a cleaning and sewage suction truck.

[0006] To address the aforementioned problems, the present invention provides a tank structure for a cleaning and vacuuming truck, comprising: a tank body; partitions disposed inside the tank body, wherein a plurality of partitions are provided, the plurality of partitions dividing the interior of the tank body into at least one clean water tank, at least one wastewater tank, and at least one conversion tank; the clean water tank is connected to a water outlet structure, the wastewater tank is connected to a vacuuming structure, and the conversion tank is connected to both the water outlet structure and the vacuuming structure.

[0007] Optionally, the water outlet structure includes a first valve, a second valve, and an outlet pipeline. The first valve and the second valve are both disposed on the outlet pipeline. The outlet pipeline is connected to the conversion box through the first valve, and the outlet pipeline is connected to the clean water tank through the second valve.

[0008] Optionally, the sludge suction structure includes a negative pressure suction component and a sludge suction and flow component, both of which are connected to the wastewater tank and the conversion tank.

[0009] Optionally, the negative pressure suction assembly includes a third valve and a suction pipeline. The suction pipeline is connected to the sewage tank, and the suction pipeline is connected to the conversion box through the third valve. The suction pipeline is connected to a suction device.

[0010] Optionally, the sludge suction and flow assembly includes a fourth valve, a fifth valve, and a sludge suction pipe. The sludge suction pipe is connected to the sludge tank via the fourth valve, and the sludge suction pipe is connected to the conversion box via the fifth valve.

[0011] Optionally, the tank structure of the cleaning and vacuuming truck further includes a flushing structure, which is rotatably disposed on the inner wall of the tank body and corresponds to the conversion box; and / or, the side of the partition facing the conversion box has an arc-shaped structure, and the arc-shaped structure protrudes outward toward the conversion box.

[0012] The present invention also provides a cleaning and sludge suction method, applied to the aforementioned cleaning and sludge suction truck tank structure, comprising: filling clean water into a clean water tank and a transfer tank; using the clean water in the transfer tank for dredging operations through a water outlet structure; when the clean water in the transfer tank is used up, using the clean water in the clean water tank again for dredging operations through the water outlet structure; sucking sewage into a sewage tank for sludge suction operations through a sludge suction structure; when the sewage tank is full of sewage, sucking the sewage into the transfer tank after the clean water has been used up for sludge suction operations through the sludge suction structure.

[0013] Optionally, during the dredging operation, the first valve corresponding to the conversion box is opened to allow the clean water in the conversion box to flow out for use; after the clean water in the conversion box is used up, the second valve corresponding to the clean water tank is opened to allow the clean water in the clean water tank to flow out for use.

[0014] Optionally, during the sewage suction operation, the fourth valve corresponding to the sewage tank is opened, the third valve of the negative pressure suction assembly is kept closed, the suction equipment is started, and the negative pressure suction assembly is used to evacuate the sewage tank to draw the sewage into the sewage tank; after the sewage tank is full of sewage, the fourth valve is closed, the fifth valve corresponding to the conversion box is opened, the third valve is opened, and the negative pressure suction assembly is used to evacuate the conversion box to draw the sewage into the conversion box.

[0015] Optionally, after the vacuuming operation is completed, the wastewater in the conversion box is discharged through the sewage discharge structure connected to the conversion box, and the flushing structure installed in the conversion box is activated to flush the conversion box.

[0016] The present invention also provides a cleaning and vacuuming truck, including the above-described cleaning and vacuuming truck tank structure.

[0017] The present invention has the following advantages:

[0018] 1. This invention provides a tank structure for a cleaning and vacuuming truck. During dredging operations, both the clean water tank and the transfer tank are filled with clean water, and the clean water in the transfer tank is used first for dredging. During vacuuming operations, the wastewater tank is used first to hold wastewater, and after the wastewater tank is full, the transfer tank can be used to store wastewater. Therefore, the capacity of both clean water and wastewater is increased, thereby increasing the continuous operating time of the cleaning and vacuuming truck. Furthermore, regardless of whether the clean water in the clean water tank and the transfer tank is used up, the wastewater in the wastewater tank can be used to store wastewater for vacuuming operations, ensuring smooth vacuuming operations. Moreover, the tank body does not require any moving parts; the tank body structure is fixed, and the manufacturing precision and sealing of the tank structure are easily satisfied.

[0019] 2. The present invention provides a tank structure for a cleaning and vacuuming truck, which controls the opening and closing of a first valve or a second valve to achieve water discharge from a conversion tank or a clean water tank, making it convenient to control the use of the conversion tank or the clean water tank for dredging operations.

[0020] 3. The present invention provides a tank structure for a cleaning and vacuuming truck, which controls the opening and closing of a third valve to control the connection and disconnection between the conversion box and the suction equipment. In other words, the conversion box is controlled to perform vacuum suction only after the sewage tank is full of sewage. The control method is simple.

[0021] 4. The present invention provides a tank structure for a cleaning and vacuuming truck, which realizes the suction of sewage from the sewage tank or the transfer tank by controlling the opening and closing of the fourth or fifth valve, making it convenient to control the use of the sewage tank or the transfer tank to hold sewage.

[0022] 5. The present invention provides a tank structure for cleaning and vacuuming trucks. By setting up a flushing structure, the inside of the conversion tank is flushed to ensure the cleanliness of the inside of the conversion tank, so that the conversion tank will not contaminate the clean water when it contains clean water.

[0023] 6. The present invention provides a tank structure for a cleaning and vacuuming truck, wherein the partition is configured as an arc-shaped structure protruding outward from the conversion box, which facilitates the flushing structure to flush the partition. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 A schematic diagram of the tank structure of the cleaning and vacuuming truck provided in an embodiment of the present invention is shown.

[0026] Explanation of reference numerals in the attached figures:

[0027] 10. Tank body; 11. Clean water tank; 12. Wastewater tank; 13. Transfer box; 20. Baffle; 30. Water outlet structure; 31. First valve; 32. Second valve; 33. Water outlet pipeline; 331. First water outlet branch; 332. Second water outlet branch; 333. Main water outlet; 40. Sludge suction structure; 41. Negative pressure suction assembly; 411. Third valve; 412. Suction pipeline; 4121. First suction branch; 4122. Second suction branch; 4123. Main suction pipeline; 42. Sludge flow assembly; 421. Fourth valve; 422. Fifth valve; 423. Sludge suction pipeline; 4231. First sludge suction branch; 4232. Second sludge suction branch; 4233. Main sludge suction pipeline; 50. Flushing structure; 60. Sludge discharge structure; 61. Sixth valve; 62. Sludge discharge pipeline. Detailed Implementation

[0028] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0031] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0032] Example 1

[0033] This embodiment provides, for example Figure 1 One specific embodiment of the tank structure of the cleaning and vacuum truck shown includes: a tank body 10 and partitions 20, with the partitions 20 disposed inside the tank body 10. Several partitions 20 are provided, dividing the interior of the tank body 10 into at least one clean water tank 11, at least one wastewater tank 12, and at least one transfer tank 13. The clean water tank 11 is connected to a water outlet structure 30, the wastewater tank 12 is connected to a vacuuming structure 40, and the transfer tank 13 is connected to both the water outlet structure 30 and the vacuuming structure 40.

[0034] It is worth noting that the clean water tank 11 is used for unblocking operations and water is discharged through the water outlet structure 30; the sewage tank 12 is used for sewage suction operations and sewage is suctioned through the sewage suction structure 40; the conversion tank 13 can be used for both unblocking and sewage suction operations, that is, water is discharged through the water outlet structure 30 during unblocking operations and sewage is suctioned through the sewage suction structure 40 during sewage suction operations.

[0035] It should be further explained that the volume of the tank body 10 used to hold clean water is the sum of the volume of the clean water tank 11 and the volume of the transfer tank 13; the volume of the tank body 10 used to hold sewage is the sum of the volume of the sewage tank 12 and the volume of the transfer tank 13.

[0036] Applying the tank structure of the cleaning and vacuum truck of this embodiment, during dredging operations, both the clean water tank 11 and the conversion tank 13 are filled with clean water, and the clean water in the conversion tank 13 is used first for dredging. During vacuuming operations, the sewage tank 12 is used first to hold sewage. After the sewage tank 12 is full, the conversion tank 13 can then be used to store sewage. Therefore, the capacity of clean water and sewage is increased, thereby increasing the continuous working time of the cleaning and vacuum truck. Furthermore, regardless of whether the clean water in the clean water tank 11 and the conversion tank 13 is used up, the sewage in the sewage tank 12 can be used to store sewage for vacuuming operations, ensuring that vacuuming operations can be carried out smoothly. In addition, there are no moving parts inside the tank body 10, the structure of the tank body 10 is fixed, and the manufacturing precision and sealing of the tank structure are easily met.

[0037] It is worth noting that, as shown in Chinese patent document CN211922460U, when using the tank of this cleaning and vacuuming truck, both the clean water tank and the sewage tank must first be filled with clean water (if only the clean water tank is filled with clean water, the effect of increasing the clean water storage capacity cannot be achieved). During the unblocking operation, taking the clean water in the clean water tank as an example (of course, the clean water in the sewage tank can also be used first), the clean water in the clean water tank is used up before the clean water in the sewage tank is used. However, the vacuuming operation can only be carried out after the clean water in the clean water tank is used up; otherwise, the remaining sewage in the clean water tank will be contaminated. Alternatively, the clean water in the clean water tank needs to be drained before the vacuuming operation, a cumbersome process that wastes water resources.

[0038] It is understood that in this embodiment, when a sewage suction operation is required, the sewage tank 12 is empty and can be directly suctioned. Therefore, the amount of clean water used during the unblocking operation will not affect the sewage suction operation (the sewage suction operation can still be carried out even if the clean water is not used up), ensuring the smooth progress of the unblocking and sewage suction operations.

[0039] In this embodiment, as Figure 1 As shown, there are two partitions 20. The two partitions 20 are spaced apart along the extension direction of the tank body 10, and the two partitions 20 are spaced apart from the two end plates of the tank body 10, respectively. Therefore, the internal division of the tank body 10 forms a clean water tank 11, a sewage tank 12 and a conversion tank 13.

[0040] It is worth noting that there can be more partitions 20; the partitions 20 can be arranged vertically (e.g., ...). Figure 1 The partitions 20 can be arranged in other directions (e.g., horizontal or inclined), as long as they can divide the interior of the tank body 10 into different accommodating spaces; the shape of the partitions 20 can be other regular or irregular shapes.

[0041] like Figure 1As shown, the water outlet structure 30 includes a first valve 31, a second valve 32, and an outlet pipe 33. Both the first valve 31 and the second valve 32 are located on the outlet pipe 33. The outlet pipe 33 is connected to the conversion box 13 via the first valve 31, and to the clean water tank 11 via the second valve 32. By controlling the opening and closing of the first valve 31 or the second valve 32, water can be discharged from the conversion box 13 or the clean water tank 11, facilitating the control of the use of either the conversion box 13 or the clean water tank 11 for unblocking operations.

[0042] In this embodiment, as Figure 1 As shown, the water outlet pipeline 33 includes a first water outlet branch 331, a second water outlet branch 332, and a main water outlet 333. A first valve 31 is installed on the first water outlet branch 331, and a second valve 32 is installed on the second water outlet branch 332. One end of the first water outlet branch 331 is connected to the conversion box 13, and one end of the second water outlet branch 332 is connected to the clean water tank 11. The other ends of the first water outlet branch 331 and the other ends of the second water outlet branch 332 are both connected to the main water outlet 333.

[0043] like Figure 1 As shown, the sludge suction structure 40 includes a negative pressure suction component 41 and a sludge suction flow component 42, both of which are communicatively connected to the wastewater tank 12 and the transfer tank 13. The negative pressure suction component 41 creates a vacuum in the wastewater tank 12 or the transfer tank 13, resulting in negative pressure within the tank. This allows wastewater to flow into the wastewater tank 12 or the transfer tank 13 via the sludge suction flow component 42. The sludge suction method is simple and easy to operate.

[0044] like Figure 1 As shown, the negative pressure suction assembly 41 includes a third valve 411 and a suction pipe 412. The suction pipe 412 is connected to the sewage tank 12, and the suction pipe 412 is connected to the conversion box 13 via the third valve 411. The suction pipe 412 is connected to the suction equipment. By controlling the opening and closing of the third valve 411, the connection between the conversion box 13 and the suction equipment is controlled. That is, the conversion box 13 is controlled to perform vacuum suction only after the sewage tank 12 is full of sewage. The control method is simple.

[0045] It is understood that those skilled in the art can ensure that the negative pressure suction component 41 will not suck out the sewage from the sewage tank 12 after the sewage tank 12 is full of sewage.

[0046] In this embodiment, as Figure 1As shown, the suction pipeline 412 includes a first suction branch 4121, a second suction branch 4122, and a main suction line 4123. A third valve 411 is installed on the second suction branch 4122. One end of the first suction branch 4121 is connected to the sewage tank 12, one end of the second suction branch 4122 is connected to the conversion box 13, and the other ends of both the first suction branch 4121 and the second suction branch 4122 are connected to the main suction line 4123, which is connected to the suction equipment.

[0047] In this embodiment, as Figure 1 As shown, both the first suction branch 4121 and the second suction branch 4122 are equipped with one-way valves, so that the air in the sewage tank 12 and the conversion tank 13 can only be drawn outward through the suction pipe 412.

[0048] like Figure 1 As shown, the sludge suction and flow assembly 42 includes a fourth valve 421, a fifth valve 422, and a sludge suction pipe 423. The sludge suction pipe 423 is connected to the sludge tank 12 via the fourth valve 421, and is connected to the transfer box 13 via the fifth valve 422. By controlling the opening and closing of the fourth valve 421 or the fifth valve 422, sludge suction from the sludge tank 12 or the transfer box 13 is achieved, facilitating the control of whether the sludge tank 12 or the transfer box 13 contains sludge.

[0049] In this embodiment, as Figure 1 As shown, the suction pipe 423 includes a first suction branch 4231, a second suction branch 4232, and a main suction pipe 4233. A fourth valve 421 is installed on the first suction branch 4231, and a fifth valve 422 is installed on the second suction branch 4232. One end of the first suction branch 4231 is connected to the sewage tank 12, one end of the second suction branch 4232 is connected to the conversion box 13, and the other ends of the first suction branch 4231 and the second suction branch 4232 are both connected to the main suction pipe 4233.

[0050] It is worth noting that, as shown in Chinese patent document CN211922460U, the suction structure and vacuum pipe of the cleaning vacuum truck tank are only designed for the sewage tank. A connecting component is used to connect the clean water tank to accommodate both sewage and wastewater. However, during suction operations, not only liquid sewage but also solid lumpy impurities are present. When the suction structure draws sewage containing lumpy impurities into the sewage tank, the lumpy impurities settle at the bottom and cannot enter the clean water tank through the connecting component. In other words, the clean water tank can only accommodate liquid sewage and not solid lumpy impurities. Therefore, once the sewage tank is full of lumpy impurities, even if there is still some space in both the clean water and sewage tanks, further suction is impossible, resulting in a low volume utilization rate for the cleaning vacuum truck tank during suction operations.

[0051] It is understood that in this embodiment, both the sewage tank 12 and the conversion tank 13 are equipped with separate suction branches. Whether the sewage is in a liquid state or the blocky impurities are in a solid state, they can enter the sewage tank 12 and the conversion tank 13 respectively, so as to maximize the utilization of the volume of the sewage tank 12 and the conversion tank 13.

[0052] like Figure 1 As shown, the tank structure of the cleaning and vacuuming truck also includes a flushing structure 50, which is rotatably mounted on the inner wall of the tank body 10 and is correspondingly provided to the transfer box 13. Therefore, by providing the flushing structure 50, the interior of the transfer box 13 is flushed to ensure the cleanliness of the interior of the transfer box 13, so that the transfer box 13 will not contaminate the clean water when it contains clean water.

[0053] It is worth noting that, since the transfer tank 13 will be used to store wastewater, it will become contaminated with impurities. Therefore, before the transfer tank 13 can be used to store clean water again, it needs to be rinsed using the rinsing structure 50.

[0054] It is worth noting that, as shown in Chinese patent document CN211922460U, the top of the clean water tank has a first top hole, and the top of the sewage tank has a second top hole. The first and second top holes are used for personnel to enter and exit the tanks to clean the interiors of the clean water and sewage tanks. Since both the clean water and sewage tanks need to be used to hold clean water during dredging operations, and both have already contained sewage, the interiors of both tanks must be cleaned before adding clean water.

[0055] It is understood that in this embodiment, since the clean water tank 11 always contains clean water and the wastewater tank 12 always contains wastewater, neither the clean water tank 11 nor the wastewater tank 12 needs to be flushed. Before filling with clean water, only the conversion tank 13 needs to be cleaned, which simplifies the flushing process of the tank structure.

[0056] It should be further explained that after using the tank structure of the cleaning and suction truck for sewage suction operations, there may be toxic gases, liquids, or solids inside the tank structure. As shown in Chinese patent document CN211922460U, cleaning by personnel entering the tank is not only inconvenient but may also threaten the safety of the workers. In this application, the flushing structure 50 is used for automatic flushing, which is not only convenient for flushing but also eliminates the need for manual operation, thus avoiding harm to the workers.

[0057] In this embodiment, the rinsing structure 50 is a 360° rotatable cleaning nozzle.

[0058] In this embodiment, as Figure 1 As shown, the side of the partition 20 facing the conversion box 13 has an arc-shaped structure, which protrudes outward from the conversion box 13 to facilitate rinsing of the partition 20 by the rinsing structure 50. That is, the partition 20 with the arc-shaped structure is rinsed by a rotatable cleaning nozzle, which facilitates the water flow of the cleaning nozzle to rinse the partition 20, thereby improving the rinsing speed and the rinsing cleanliness.

[0059] It is worth noting that, please refer to Figure 1 The two partitions 20 are set to protrude to the left and right sides respectively.

[0060] Further explanation is needed; please refer to [link / reference]. Figure 1 The left and right end plates of the tank body 10 can also be set to protrude to the left and right sides respectively, thereby increasing the volume of the clean water tank 11 and the sewage tank 12.

[0061] like Figure 1 As shown, the conversion box 13 is also connected to a sewage discharge structure 60. After the sewage suction operation is completed, the sewage in the conversion box 13 is discharged through the sewage discharge structure 60; and the sewage generated by the flushing structure 50 in flushing the conversion box 13 is also discharged through the sewage discharge structure 60. Specifically, the sewage discharge structure 60 includes a sixth valve 61 and a sewage discharge pipe 62. The sixth valve 61 is installed on the sewage discharge pipe 62, and the sewage discharge pipe 62 is connected to the conversion box 13.

[0062] It is worth noting that, please refer to Figure 1 The end plate of the tank body 10 corresponding to the sewage tank 12 (i.e. Figure 1 The right end plate of the main body 10 of the middle tank is an openable and closable structure. When discharging sewage from the sewage tank 12, the end plate is opened and the left end of the main body 10 of the tank is lifted, so that the main body 10 of the tank is tilted as a whole, thereby allowing the sewage in the sewage tank 12 to be poured out.

[0063] In this embodiment, each valve can be an automatic valve or a manual valve.

[0064] It is worth noting that sensors can be installed in the clean water tank 11, the wastewater tank 12, and the conversion tank 13 to detect the status of the clean water tank 11, the wastewater tank 12, and the conversion tank 13, and to control the opening and closing of each valve.

[0065] Example 2

[0066] This embodiment provides a specific implementation of the cleaning and vacuuming method, applied to the tank structure of the cleaning and vacuuming truck in Embodiment 1, including:

[0067] Fill the clean water tank 11 and the conversion tank 13 with clean water;

[0068] The clean water in the conversion tank 13 is used through the water outlet structure 30 for unblocking operations. When the clean water in the conversion tank 13 is used up, the clean water in the clean water tank 11 is used through the water outlet structure 30 for unblocking operations.

[0069] Sewage is drawn into the sewage tank 12 by the suction structure 40 for suction operation. When the sewage tank 12 is full of sewage, the sewage is then drawn into the conversion tank 13 after the clean water has been used by the suction structure 40 for suction operation.

[0070] In this embodiment, during the dredging operation, the first valve 31 is opened to allow the clean water in the conversion tank 13 to flow out for use. Specifically, the clean water in the conversion tank 13 flows out through the first water outlet branch 331 and the main water outlet 333. After the clean water in the conversion tank 13 is used up, the second valve 32 is opened to allow the clean water in the clean water tank 11 to flow out for use. Specifically, the clean water in the clean water tank 11 flows out through the second water outlet branch 332 and the main water outlet 333.

[0071] In this embodiment, during the sewage suction operation, the fourth valve 421 is opened while the third valve 411 remains closed. The suction equipment is started, causing the negative pressure suction assembly 41 to create a vacuum in the sewage tank 12, thus drawing the sewage into the sewage tank 12. Specifically, the sewage flows into the sewage tank 12 via the main suction line 4233 and the first suction branch line 4231. After the sewage tank 12 is full of sewage, the fourth valve 421 is closed, the fifth valve 422 is opened, and the third valve 411 is opened, causing the negative pressure suction assembly 41 to create a vacuum in the conversion box 13, thus drawing the sewage into the conversion box 13. Specifically, the sewage flows into the conversion box 13 via the main suction line 4233 and the second suction branch line 4232.

[0072] In this embodiment, after the vacuuming operation is completed, the wastewater in the conversion tank 13 is discharged through the sewage discharge structure 60, and the conversion tank 13 is flushed through the flushing structure 50. Specifically, the sixth valve 61 is opened, and the wastewater in the conversion tank 13 and the wastewater generated during flushing flow out through the sewage discharge pipe 62.

[0073] In this embodiment, after the sewage in the conversion tank 13 is discharged, the sewage in the sewage tank 12 is then discharged. Specifically, the end plate corresponding to the sewage tank 12 is opened, and the other end of the tank body 10 is lifted to drain the sewage from the sewage tank 12.

[0074] The table below illustrates the on / off status of each valve on the tank structure of the cleaning vacuum truck under different operating conditions ("√" indicates open, "×" indicates closed).

[0075]

[0076]

[0077] Example 3

[0078] This embodiment provides a specific implementation of a cleaning and vacuuming truck, including the tank structure of the cleaning and vacuuming truck in Embodiment 1.

[0079] Based on the above description, this patent application has the following advantages:

[0080] 1. The tank structure contains no moving parts, the overall structure is fixed, the manufacturing precision requirements are low, the production cost is low, and the maintenance cost is low;

[0081] 2. The tank structure uses steel parts, resulting in a long service life;

[0082] 3. The tank structure has a reliable seal and a good sealing effect;

[0083] 4. It is easy to operate, has a clear logic, allows for convenient switching between clean and wastewater, and is highly applicable.

[0084] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A cleaning tank structure of a vacuum sewer truck, characterized by, include: Tank body (10); A partition (20) is disposed inside the tank body (10). Several partitions (20) are provided, and the several partitions (20) divide the interior of the tank body (10) into at least one clean water tank (11), at least one sewage tank (12), and at least one conversion tank (13). The clean water tank (11) is connected to a water outlet structure (30), the sewage tank (12) is connected to a sludge suction structure (40), and the conversion tank (13) is connected to the water outlet structure (30) and the sludge suction structure (40). The sludge suction structure (40) includes a negative pressure suction component (41) and a sludge suction flow component (42), and both the negative pressure suction component (41) and the sludge suction flow component (42) are connected to the sewage tank (12) and the conversion box (13). The negative pressure suction assembly (41) includes a third valve (411) and a suction pipe (412). The suction pipe (412) is connected to the sewage tank (12). The suction pipe (412) is connected to the conversion box (13) through the third valve (411). The suction pipe (412) is connected to the suction equipment.

2. The cleaning suction tank structure according to claim 1, characterized in that, The water outlet structure (30) includes a first valve (31), a second valve (32), and a water outlet pipe (33). The first valve (31) and the second valve (32) are both installed on the water outlet pipe (33). The water outlet pipe (33) is connected to the conversion box (13) through the first valve (31), and the water outlet pipe (33) is connected to the clean water tank (11) through the second valve (32).

3. The cleaning suction tank structure according to claim 1, wherein The sludge suction and circulation assembly (42) includes a fourth valve (421), a fifth valve (422), and a sludge suction pipe (423). The sludge suction pipe (423) is connected to the sewage tank (12) through the fourth valve (421), and the sludge suction pipe (423) is connected to the conversion box (13) through the fifth valve (422).

4. The tank structure of the cleaning and vacuum truck according to claim 1 or 2, characterized in that, The tank structure of the cleaning and vacuuming truck also includes a flushing structure (50), which is rotatably mounted on the inner wall of the tank body (10) and corresponds to the conversion box (13); and / or, The side of the partition (20) facing the conversion box (13) has an arc-shaped structure, and the arc-shaped structure protrudes outward from the conversion box (13).

5. A cleaning and vacuuming method, applied to the tank structure of a cleaning and vacuuming truck as described in any one of claims 1-4, characterized in that, include: Fill the clean water tank (11) and the conversion tank (13) with clean water; The clean water in the conversion tank (13) is used through the water outlet structure (30) to carry out the unblocking operation. When the clean water in the conversion tank (13) is used up, the clean water in the clean water tank (11) is used through the water outlet structure (30) to carry out the unblocking operation. The sewage is sucked into the sewage tank (12) by the suction structure (40) for suction operation. When the sewage tank (12) is full of sewage, the sewage is sucked into the conversion tank (13) after the clean water is used up by the suction structure (40) for suction operation.

6. The cleaning and vacuuming method according to claim 5, characterized in that, During the dredging operation, the first valve (31) corresponding to the conversion box (13) is opened to allow the clean water in the conversion box (13) to flow out for use; after the clean water in the conversion box (13) is used up, the second valve (32) corresponding to the clean water tank (11) is opened to allow the clean water in the clean water tank (11) to flow out for use.

7. The method of claim 5, wherein, During the sewage suction operation, open the fourth valve (421) corresponding to the sewage tank (12), keep the third valve (411) of the negative pressure suction assembly (41) closed, start the suction equipment, use the negative pressure suction assembly (41) to evacuate the sewage tank (12), and suck the sewage into the sewage tank (12); after the sewage tank (12) is full of sewage, close the fourth valve (421), open the fifth valve (422) corresponding to the conversion box (13), open the third valve (411), use the negative pressure suction assembly (41) to evacuate the conversion box (13), and suck the sewage into the conversion box (13).

8. The cleaning and vacuuming method according to claim 5, characterized in that, After the vacuuming operation is completed, the sewage in the conversion box (13) is discharged through the sewage discharge structure (60) connected to the conversion box (13), and the flushing structure (50) installed in the conversion box (13) is activated to flush the conversion box (13).

9. A cleaning and vacuuming truck, characterized in that, The cleaning and vacuum truck tank structure includes any one of claims 1-4.

Images