Hidden type cleaning and sweeping vehicle pollution discharge device and cleaning and sweeping vehicle

Abstract

The utility model relates to the technical field of cleaning and sweeping vehicles, in particular to a hidden type cleaning and sweeping vehicle pollution discharge device which comprises a cleaning and sweeping vehicle box body and a pollution discharge structure. The cleaning and sweeping vehicle isolation plate is arranged in the cleaning and sweeping vehicle box body and divides the cleaning and sweeping vehicle box body into a first cleaning and sweeping vehicle box body for storing sewage and a second cleaning and sweeping vehicle box body for storing clear water; the pollution discharge structure is provided with a washing and sweeping vehicle pollution discharge pipeline and a first pollution discharge part, the washing and sweeping vehicle pollution discharge pipeline is arranged in the second washing and sweeping vehicle box body and extends out of the second washing and sweeping vehicle box body, and the first pollution discharge part is connected to the washing and sweeping vehicle isolation plate and communicates with the first washing and sweeping vehicle box body; and the cleaning and sweeping vehicle blow-off pipeline is connected to the first blow-off part so as to discharge sewage in the first cleaning and sweeping vehicle box body. According to the scheme, the built-in sewage discharging device is adopted, the overlength risk of the rear overhang of the whole cleaning and sweeping vehicle is effectively avoided, and the effects of improving the safety of the cleaning and sweeping vehicle and enhancing the attractiveness of the cleaning and sweeping vehicle are achieved.

Description

Technical Field

[0001] This utility model belongs to the technical field of sweeper trucks, and particularly relates to a concealed sewage discharge device for sweeper trucks. Background Technology

[0002] In recent years, with the increasing investment in environmental governance by the state and the growing environmental awareness of the people, the sanitation equipment industry has developed rapidly, and sanitation vehicles have become cleaning tools closely related to our lives. In particular, the environmental monitoring requirements for PM2.5 in Chinese cities have greatly increased the requirements for the cleanliness of urban roads. Therefore, road cleaning machinery and equipment, represented by sweeper trucks, have been rapidly promoted and applied.

[0003] In the prior art, the sewage discharge device of most sweeper trucks is located on the rear tailgate, which causes the sewage discharge device to protrude a certain distance in the length direction of the vehicle. This can easily lead to the risk of excessive rear overhang of the sweeper truck. In addition, this method causes the sewage discharge ball valve and sewage discharge pipe to protrude and the sewage discharge belt to hang on the tailgate, which makes the appearance of the vehicle unsightly and affects the appearance of the city. Therefore, this utility model proposes a new solution to the above-mentioned technical problems. Utility Model Content

[0004] The purpose of this utility model is to provide a concealed sewage discharge device for a sweeper truck. The device adopts a built-in structure design, which improves the safety and aesthetics of the sweeper truck.

[0005] Based on this, the present invention provides a concealed sewage discharge device for a sweeper truck, comprising:

[0006] The sweeper truck includes a body and a sewage discharge structure. The body is equipped with a partition plate that divides the sweeper truck body into a first body for storing wastewater and a second body for storing clean water. The sewage discharge structure includes a sewage discharge pipe and a first discharge section. The sewage discharge pipe is located inside the second body and extends out of the second body. The first discharge section is connected to the partition plate and communicates with the first body. The sewage discharge pipe is connected to the first discharge section to discharge the wastewater from the first body.

[0007] As described above, a concealed sewage discharge device for a sweeper truck is characterized in that the first sewage discharge section is provided with a first sewage discharge port connector, a first sewage discharge filter plate, a first sewage discharge support frame, and a first threaded connector. One end of the first sewage discharge port connector is connected to the isolation plate of the sweeper truck, and the other end is connected to the sewage discharge pipe of the sweeper truck. The first sewage discharge support frame is connected inside the first sewage discharge port connector, and the first sewage discharge filter plate is connected to the first sewage discharge support frame through the first threaded connector to filter sewage.

[0008] As described above, in a concealed sweeper truck sewage discharge device, the first sewage outlet connector is designed in a trumpet shape, and the first sewage discharge part is also provided with a sewage discharge support frame shaping plate. The sewage discharge support frame shaping plate is connected inside the first sewage outlet connector to stabilize the first sewage outlet connector.

[0009] As described above, in a concealed sweeper truck sewage discharge device, the first sewage discharge support frame is L-shaped and includes a first sewage discharge support frame shaping plate and a second sewage discharge support frame shaping plate. The first sewage discharge support frame shaping plate and the second sewage discharge support frame shaping plate are connected and respectively connected to the first sewage discharge port connector. The second sewage discharge support frame shaping plate has a sewage discharge support frame inclined end, which can closely adhere to the inner wall of the first sewage discharge port connector to support the first sewage discharge port connector.

[0010] As described above, the concealed sewage discharge device for a sweeper truck includes a first connecting flat pad, a second connecting flat pad, and a first connecting elastic pad. The first connecting elastic pad, the first connecting flat pad, and the second connecting flat pad are connected to the first sewage discharge filter plate via the first threaded connector to stabilize the first sewage discharge filter plate.

[0011] As described above, a concealed sewage discharge device for a sweeper truck includes a second sewage discharge section. The sewage discharge pipe of the sweeper truck includes a first sewage discharge connecting pipe, a second sewage discharge connecting pipe, and a sewage discharge connecting assembly. One end of the first sewage discharge connecting pipe is connected to the first sewage outlet connector, and the other end is connected to the sewage discharge connecting assembly. One end of the second sewage discharge connecting pipe is connected to the sewage discharge connecting assembly and communicates with the first sewage discharge connecting pipe, while the other end is connected to the second sewage discharge section for drainage.

[0012] As described above, a concealed sewage discharge device for a sweeper truck includes a sweeper truck connection ball valve, a sweeper truck connection transition joint, a sweeper truck male pipe thread interface, a sweeper truck female pipe thread interface, and a sweeper truck pipe clamp. One end of the sweeper truck connection ball valve is connected to the first sweeper truck sewage discharge connection pipe, and the other end is connected to the sweeper truck connection transition joint. The other end of the sweeper truck connection transition joint is connected to the sweeper truck male pipe thread interface. The sweeper truck female pipe thread interface is connected to the second sweeper truck sewage discharge connection pipe and is secured by the sweeper truck pipe clamp. The sweeper truck female pipe thread interface connects to the sweeper truck male pipe thread interface, connecting the first and second sweeper truck sewage discharge connection pipes for drainage.

[0013] As described above, in a concealed wastewater discharge device for a sweeper truck, the second wastewater discharge connection pipe of the sweeper truck is designed as a conveniently retractable water hose.

[0014] The concealed sewage discharge device for a sweeper truck as described above is characterized in that the second sewage discharge section is provided with a second sewage discharge interface and a sweeper truck pipe clamp two. The second sewage discharge interface is connected to the second sweeper truck sewage discharge connection pipe and is fastened by the sweeper truck pipe clamp two to supply drainage to the first sweeper truck body.

[0015] This utility model also provides a sweeper truck, including a concealed sweeper truck sewage discharge device and a sweeper truck body as described above. The sweeper truck body is provided with a sweeper truck receiving cavity, and the sweeper truck box is located in the sweeper truck receiving cavity for the sweeper truck to use for cleaning.

[0016] Implementing the embodiments of this utility model has the following beneficial effects:

[0017] 1. This solution adopts a built-in sewage discharge device design. The sweeper truck body is equipped with a partition plate, which divides the sweeper truck body into a first sweeper truck body and a second sweeper truck body for storing sewage and clean water, respectively. The sewage discharge structure includes a sewage discharge pipe and a first sewage discharge section. The sewage discharge pipe is located inside the second sweeper truck body and extends to the outside of the second sweeper truck body. It is then connected to the partition plate through the first sewage discharge section to connect the first and second sweeper truck bodies. By connecting the sewage discharge pipe to the first sewage discharge section, the sewage in the first sweeper truck body can be discharged. By changing the sewage discharge device from an external, exposed type to a built-in type inside the second sweeper truck body, the risk of excessive rear overhang of the sweeper truck is effectively avoided, thereby improving the safety and aesthetics of the sweeper truck. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the present invention installed on the body of a sweeper truck according to Embodiment 1;

[0020] Figure 2 For the corresponding Figure 1 A structural diagram from another direction;

[0021] Figure 3 For the corresponding Figure 2 AA section view;

[0022] Figure 4 For the corresponding Figure 3 Enlarged view of the structure of section B;

[0023] Figure 5 The exploded view of the sewage discharge structure corresponding to Embodiment 1 of this utility model is shown below.

[0024] Figure 6 This is an exploded view of the structure of the first sewage discharge section corresponding to Embodiment 1 of this utility model;

[0025] Figure 7 This is a partial structural cross-sectional view of the first sewage discharge section connected to the sewage discharge connection pipe of the first sweeper truck in Embodiment 1 of this utility model;

[0026] Figure 8 For the corresponding Figure 7 Enlarged view of the C-section structure.

[0027] In the diagram: 111-Sweeper truck isolation plate, 112-First sweeper truck body, 113-Second sweeper truck body; 211-First sweeper truck sewage connection pipe, 212-Second sweeper truck sewage connection pipe, 213-Sweeper truck sewage connection assembly, 2131-Sweeper truck connection ball valve, 2132-Sweeper truck connection transition joint, 2133-Sweeper truck male pipe thread interface, 2134-Sweeper truck female pipe thread interface, 2135-Sweeper truck pipe clamp one, 22-First sewage discharge section, 221-First sewage outlet connector, 222-First sewage filter plate, 223-First sewage support frame 2231-First sewage discharge support frame shaping plate, 2232-Second sewage discharge support frame shaping plate, 22321-Inclined end of sewage discharge support frame, 2241-First connecting bolt, 2242-First connecting nut, 225-Sewage discharge support frame shaping plate, 226-First connecting flat washer plate one, 227-First connecting flat washer plate two, 228-First connecting elastic washer, 23-Second sewage discharge part, 231-Second sewage discharge interface, 2311-Second sewage discharge fastening ear, 232-Washer truck pipe clamp two; 3-Washer truck body, 31-Washer truck receiving cavity, 32-Washer truck box skirt. Detailed Implementation

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

[0029] like Figures 1 to 8 As shown, this utility model embodiment provides a concealed sewage discharge device for a sweeper truck, including:

[0030] The sweeper truck includes a body and a sewage discharge structure. The body is equipped with a partition plate 111, which divides the sweeper truck body into a first body 112 for storing sewage and a second body 113 for storing clean water. The sewage discharge structure includes a sewage discharge pipe and a first sewage discharge section 22. The sewage discharge pipe is located inside the second body 113 and extends out of the second body 113. The first sewage discharge section 22 is connected to the partition plate 111 and communicates with the first body 112. The sewage discharge pipe is connected to the first sewage discharge section 22 to discharge the sewage in the first body 112.

[0031] Example 1:

[0032] See Figures 1 to 8 As shown, in this embodiment, the sweeper truck isolation plate 111 is provided with a sweeper truck sewage discharge connection hole, and the first sewage discharge section 22 is provided with a first sewage discharge port connector 221, a first sewage discharge filter plate 222, a first sewage discharge support frame 223, and a first threaded connector. One end of the first sewage discharge port connector 221 is welded to the sweeper truck sewage discharge connection hole, and the other end is welded to the sweeper truck sewage discharge pipe to ensure the sealing and tightness of the connection; the first sewage discharge support frame 223 is welded inside the first sewage discharge port connector 221 to fix the first sewage discharge support frame 223; the first sewage discharge... The filter plate 222 is fixedly connected to the first sewage discharge support frame 223 through the first threaded connector, so as to filter the sewage in the first sweeper body 112 through the first sewage discharge filter plate 222 to avoid clogging the sewage discharge pipe of the sweeper. The first sewage discharge filter plate 222 is provided with multiple equidistant filter holes to fully filter large pieces of garbage or leaves in the sewage to ensure that the sewage can be discharged smoothly. At the same time, the detachable design of the first sewage discharge filter plate 222 makes it easy to quickly clean up any blockages caused during sewage discharge, thereby improving the efficiency of cleaning work.

[0033] Furthermore, the first sewage outlet connector 221 has a flared design, and the first sewage outlet section 22 is also provided with a sewage support frame shaping plate 225. The sewage support frame shaping plate 225 is welded inside the first sewage outlet connector 221 to ensure that the flared shape of the first sewage outlet connector 221 is stable, which facilitates the welding of the first sewage outlet connector 221 to the sweeper truck isolation plate 111 and the sweeper truck sewage pipe, thereby improving the convenience of production.

[0034] Furthermore, the first sewage support frame 223 is L-shaped to securely weld itself to the first sewage outlet connector 221, thereby improving the stability of the connection. The first sewage support frame 223 is provided with a first sewage support frame shaping plate 2231 and a second sewage support frame shaping plate 2232. The first sewage support frame shaping plate 2231 and the second sewage support frame shaping plate 2232 are fixedly connected and respectively connected to the first sewage outlet connector 221. The second sewage support frame shaping plate 2232 is provided with a sewage support frame inclined end 22321. The sewage support frame inclined end 22321 is parallel to the inclined inner wall of the first sewage outlet connector 221, so that the sewage support frame inclined end 22321 can be welded tightly against the inner wall of the first sewage outlet connector 221 and support the first sewage outlet connector 221 to ensure the stability of the connection.

[0035] Furthermore, the first sewage discharge section 22 is also provided with a first connecting flat washer 226, a first connecting flat washer 227, and a first connecting elastic washer 228. The first connecting elastic washer 228, the first connecting flat washer 226, and the first connecting flat washer 227 are connected to the first sewage discharge filter plate 222 via the first threaded connector to stabilize the first sewage discharge filter plate 222. The first sewage discharge support frame shaping plate 2231 is provided with a first sewage discharge fixing connection hole. The first threaded connector is provided with a first connecting bolt 2241 and a first connecting nut 2242. The first connecting nut 2242 is welded to the first sewage discharge fixing connection hole. The connection hole facilitates connection to the first connecting nut 2242 via the first connecting bolt 2241. The first connecting elastic washer 228, the first connecting flat washer 226, and the second connecting flat washer 227 are then tightened sequentially. Through the abutment action of the first connecting flat washer 226 and the second connecting flat washer 227 on the first sewage filter plate 222, and the elastic action of the first connecting elastic washer 228 on the first connecting flat washer 226 and the second connecting flat washer 227, the first sewage filter plate 222 is ensured to be less prone to shaking under the impact of sewage, and can effectively filter large pieces of garbage or leaves.

[0036] Furthermore, the sewage discharge structure also includes a second sewage discharge section 23. The sewage discharge pipe of the sweeper truck includes a first sewage discharge connecting pipe 211, a second sewage discharge connecting pipe 212, and a sewage discharge connecting assembly 213. One end of the first sewage discharge connecting pipe 211 is connected to the first sewage outlet connector 221, and the other end is connected to the sewage discharge connecting assembly 213. One end of the second sewage discharge connecting pipe 212 is connected to the sewage discharge connecting assembly 213 and communicates with the first sewage discharge connecting pipe 211, and the other end is connected to the second sewage discharge section 23 for drainage. With this design, by using the sewage discharge connecting assembly 213 to connect the first sewage discharge connecting pipe 211 and the second sewage discharge connecting pipe 212, leakage of sewage during the discharge process can be effectively avoided, ensuring the sealing of the connection.

[0037] Furthermore, the sweeper truck sewage connection assembly 213 includes a sweeper truck connection ball valve 2131, a sweeper truck connection transition joint 2132, a sweeper truck male pipe thread interface 2133, a sweeper truck female pipe thread interface 2134, and a sweeper truck pipe clamp 2135. The sweeper truck connection ball valve 2131 is a quick-opening and closing ball valve with flow regulation function, which can accurately control the opening and closing of water flow according to actual sewage discharge needs, reducing energy consumption and water flow fluctuations during the drainage process. The sweeper truck connection ball valve 2131 is equipped with a sewage flow rate adjustment handle for adjusting the drainage flow rate. One end of the sweeper truck connection ball valve 2131 is connected to the first sweeper truck sewage connection pipe 211, and the other end is connected to the sweeper truck connection transition joint 2132. The other end of the sweeper truck connection transition joint 2132... The male interface 2133 of the sweeper vehicle pipe is connected to the female interface 2134 of the sweeper vehicle pipe; the female interface 2134 of the sweeper vehicle pipe is connected to the second sweeper vehicle sewage connection pipe 212 and is fastened by the sweeper vehicle pipe clamp 2135. The female interface 2134 of the sweeper vehicle pipe is connected to the male interface 2133 of the sweeper vehicle pipe, connecting the first sweeper vehicle sewage connection pipe 211 and the second sweeper vehicle sewage connection pipe 212. The water volume is adjusted by the sewage flow adjustment handle to drain water to the outside. The structural design of the male interface 2133 and the female interface 2134 of the sweeper vehicle pipe allows the second sweeper vehicle sewage connection pipe 212 to be quickly assembled and disassembled when needed, effectively improving the installation efficiency and the convenience of replacing and storing the second sweeper vehicle sewage connection pipe 212.

[0038] Furthermore, the second wastewater discharge connection pipe 212 of the sweeper truck is designed as a conveniently stored connecting hose, and the first wastewater discharge connection pipe 211 of the sweeper truck is preferably designed as a stainless steel pipe to ensure that the second wastewater discharge connection pipe 212 can be stored after being connected, and that the second wastewater discharge connection pipe 212 can quickly drain water after being unfolded, effectively avoiding the risk of excessively long rear overhang of the sweeper truck and improving the safety of using the sweeper truck.

[0039] Furthermore, the second sewage discharge section 23 is provided with a second sewage discharge interface 231 and a sweeper truck clamp 232. The second sewage discharge interface 231 is connected to the second sweeper truck sewage discharge connection pipe 212 and is fastened by the sweeper truck clamp 232 to supply drainage to the first sweeper truck body 112. The sweeper truck clamp 232 is designed as a locking structure, with threaded or snap-on fastening devices, which can prevent loosening caused by pressure changes or vibrations of the second sweeper truck sewage discharge connection pipe 212 during use, ensuring that the second sewage discharge interface 231 is always in a tight state, thereby ensuring smooth sewage discharge. The second sewage discharge interface 231 is provided with a second sewage discharge fastening ear 2311, which is located opposite to the outside of the second sewage discharge interface 231, so that it can be fastened by the second sewage discharge fastening ear 2311 after storage or disassembly, avoiding damage caused by the shaking of the second sewage discharge interface 231 during the operation of the sweeper truck.

[0040] This utility model provides a sweeper truck, including a concealed sweeper truck sewage discharge device and a sweeper truck body 3 as described above. The sweeper truck body 3 is provided with a sweeper truck receiving cavity 31 and a sweeper truck body skirt 32. The sweeper truck body skirt 32 is located outside the sweeper truck receiving cavity 31 and is located opposite to both sides of the sweeper truck body 3. The sweeper truck body skirt 32 can cover the connected sweeper truck ball valve 2131, sweeper truck connecting transition joint 2132, and sweeper truck pipe thread male interface 2133 to avoid exposure and affect the appearance of the sweeper truck. The sweeper truck body is located in the sweeper truck receiving cavity so that the sewage and garbage generated during the sweeper truck cleaning process can be collected in the first sweeper truck body 112. After the sewage is discharged by the sewage discharge device, the garbage is transferred and processed, which improves the efficiency and convenience of sweeper truck cleaning.

[0041] Example 2:

[0042] The difference between Embodiment 2 and Embodiment 1 is that the first sewage outlet connector used in the first sewage discharge section of this utility model is a common connector with a filter screen directly welded to the common connector. Then, the sewage pipe of the sweeper truck in Embodiment 1 is welded to the common connector, which enhances the versatility of the sewage discharge device and is suitable for cleaning places with large garbage or few leaves and where it is not easy to cause blockage of the first sewage discharge section.

[0043] Example 3:

[0044] The difference between Implementation 3 and Implementation 1 is that the sewage pipe of the sweeper truck of this utility model does not use the male interface 2133 and the female interface 2134 of the sweeper truck pipe for connection. Instead, it uses the sweeper truck pipe clamp to directly fasten the connecting water hose to the sweeper truck connecting transition joint 2132, which simplifies the installation steps of the connecting water hose and is suitable for cleaning places where the connecting water hose does not need to be disassembled frequently.

[0045] It should be understood that the terms "first," "second," etc., are used in this utility model to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this utility model, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information. In addition, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and 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 this utility model.

[0046] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A concealed sewage discharge device for a sweeper truck, characterized in that, include: The sweeper truck body and sewage discharge structure are provided. The sweeper truck body is provided with a sweeper truck isolation plate (111). The sweeper truck isolation plate (111) is located in the sweeper truck body and divides the sweeper truck body into a first sweeper truck body (112) for storing sewage and a second sweeper truck body (113) for storing clean water. The sewage discharge structure is provided with a sewage discharge pipe for the sweeper and a first sewage discharge section (22). The sewage discharge pipe for the sweeper is located inside the second sweeper body (113) and extends out of the second sweeper body (113). The first sewage discharge section (22) is connected to the isolation plate (111) of the sweeper and communicates with the first sweeper body (112). The sewage discharge pipe for the sweeper is connected to the first sewage discharge section (22) to discharge the sewage in the first sweeper body (112).

2. The concealed sewage discharge device for a sweeper truck according to claim 1, characterized in that, The first sewage discharge section (22) is provided with a first sewage discharge port connector (221), a first sewage discharge filter plate (222), a first sewage discharge support frame (223), and a first threaded connector. One end of the first sewage discharge port connector (221) is connected to the isolation plate (111) of the sweeper truck, and the other end is connected to the sewage discharge pipe of the sweeper truck. The first sewage discharge support frame (223) is connected inside the first sewage discharge port connector (221), and the first sewage discharge filter plate (222) is connected to the first sewage discharge support frame (223) through the first threaded connector to filter sewage.

3. The concealed sewage discharge device for a sweeper truck according to claim 2, characterized in that, The first sewage outlet connector (221) is horn-shaped, and the first sewage outlet part (22) is also provided with a sewage support frame shaping plate (225). The sewage support frame shaping plate (225) is connected inside the first sewage outlet connector (221) to stabilize the first sewage outlet connector (221).

4. The concealed sewage discharge device for a sweeper truck according to claim 3, characterized in that, The first sewage support frame (223) is L-shaped and has a first sewage support frame shaping plate (2231) and a second sewage support frame shaping plate (2232). The first sewage support frame shaping plate (2231) and the second sewage support frame shaping plate (2232) are connected to each other and respectively connected to the first sewage outlet connector (221). The second sewage support frame shaping plate (2232) has a sewage support frame inclined end (2233). The sewage support frame inclined end (2233) can closely adhere to the inner wall of the first sewage outlet connector (221) to support the first sewage outlet connector (221).

5. A concealed wastewater discharge device for a sweeper truck according to claim 2, characterized in that, The first sewage discharge section (22) is also provided with a first connecting flat pad (226), a first connecting flat pad (227), and a first connecting elastic pad (228). The first connecting elastic pad (228), the first connecting flat pad (226), and the first connecting flat pad (227) are connected to the first sewage discharge filter plate (222) through the first threaded connector to stabilize the first sewage discharge filter plate (222).

6. A concealed wastewater discharge device for a sweeper truck according to claim 2, characterized in that, The sewage discharge structure is also provided with a second sewage discharge section (23). The sewage discharge pipe of the sweeper truck is provided with a first sewage discharge connection pipe (211), a second sewage discharge connection pipe (212), and a sewage discharge connection assembly (213). One end of the first sewage discharge connection pipe (211) is connected to the first sewage outlet connector (221), and the other end is connected to the sewage discharge connection assembly (213). One end of the second sewage discharge connection pipe (212) is connected to the sewage discharge connection assembly (213) and communicates with the first sewage discharge connection pipe (211). The other end is connected to the second sewage discharge section (23) for drainage.

7. A concealed wastewater discharge device for a sweeper truck according to claim 6, characterized in that, The sweeper truck sewage connection assembly (213) is equipped with a sweeper truck connection ball valve (2131), a sweeper truck connection transition joint (2132), a sweeper truck male thread interface (2133), a sweeper truck female thread interface (2134), and a sweeper truck pipe clamp (2135). One end of the sweeper truck connection ball valve (2131) is connected to the first sweeper truck sewage connection pipe (211), and the other end is connected to the sweeper truck connection transition joint (2132). The sweeper truck connection transition joint (2133) 2132) The other end is connected to the male interface (2133) of the sweeper pipe; the female interface (2134) of the sweeper pipe is connected to the second sweeper sewage connection pipe (212) and is fastened by the sweeper pipe clamp (2135). The female interface (2134) of the sweeper pipe is connected to the male interface (2133) of the sweeper pipe to connect the first sweeper sewage connection pipe (211) and the second sweeper sewage connection pipe (212) for drainage.

8. A concealed wastewater discharge device for a sweeper truck according to claim 6, characterized in that, The second sweeper truck sewage connection pipe (212) is designed as a conveniently stored connection hose.

9. A concealed wastewater discharge device for a sweeper truck according to claim 6, characterized in that, The second sewage discharge section (23) is provided with a second sewage discharge interface (231) and a sweeper truck clamp two (232). The second sewage discharge interface (231) is connected to the second sweeper truck sewage discharge connection pipe (212) and is fastened by the sweeper truck clamp two (232) to supply drainage to the first sweeper truck body (112).

10. A sweeper truck, characterized in that, Includes a concealed sweeper vehicle sewage discharge device as described in any one of claims 1-9, and a sweeper vehicle body (3), wherein the sweeper vehicle body (3) is provided with a sweeper vehicle receiving cavity (31), and the sweeper vehicle box is located in the sweeper vehicle receiving cavity (31) for the sweeper vehicle to use for cleaning.

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