A sanitary truck for fecal disposal

Abstract

The application discloses a kind of excrement treatment sanitation vehicles, which belongs to the field of environmental health technology.It includes excrement and garbage separation component, chemical treatment pool, mechanical dehydration component, pipeline system and pump body component on the sanitation vehicle;The beneficial effect is that excrement and garbage separation component can separate the excrement, garbage and sewage pumped into, so that the excrement and sewage enter into the separation tank, and the excrement and sewage enter into the chemical treatment pool and mechanical dehydration component in turn through the pump body component and pipeline system, to realize the timely treatment of excrement, garbage and sewage, without long-distance transportation of untreated excrement, sewage and garbage to fixed treatment plant.The separated excrement and sewage are treated by chemical reagent put into the chemical treatment pool, and then the treated excrement is dehydrated by the mechanical dehydration component to produce fecal sludge and separate the treated sewage.

Description

Technical Field

[0001] This invention relates to the field of environmental sanitation technology, and more specifically, to a sanitation vehicle for treating feces. Background Technology

[0002] With the rapid advancement of urbanization and the continuous growth of urban population in my country, the discharge of urban domestic sewage has increased dramatically, making the cleaning and treatment of septic tanks an important part of urban environmental sanitation management.

[0003] Currently, septic tank cleaning operations utilize vacuum trucks to generate negative pressure through vacuum pumps, sucking sewage, garbage, and feces from the septic tanks into onboard tanks, which are then transported to sewage treatment plants or other designated disposal sites for discharge and treatment.

[0004] Traditional vacuum trucks only have suction and transfer functions, lacking on-site processing capabilities. The pumped sewage, feces, and garbage must all be transported to a designated treatment plant for further disposal. Traditional vacuum trucks often require multiple round trips to complete the cleaning operation, which is not only time-consuming and labor-intensive but also significantly increases fuel consumption and transportation costs. Summary of the Invention

[0005] To address the issue that traditional septic tank trucks only have suction and transport functions and lack the ability to treat sewage, feces, and garbage on-site, this application provides a sanitation vehicle for fecal treatment, including a fecal and garbage separation component, a chemical treatment tank, a mechanical dewatering component, a pipeline system, and a pump assembly mounted on the vehicle. The fecal and garbage separation component includes a separation bucket and a separation chamber. The separation bucket separates feces, garbage, and sewage, allowing the feces and sewage to enter the separation chamber. The pump assembly transports the feces and sewage from the separation chamber to the chemical treatment tank. The chemical treatment tank treats the separated feces and sewage using added chemical agents. The mechanical dewatering component dewaters the chemically treated feces, producing fecal sludge, and discharges the fecal sludge and treated sewage. The pipeline system connects the fecal and garbage separation component, the chemical treatment tank, and the mechanical dewatering component.

[0006] Furthermore, the sanitation vehicle is equipped with a storage tank on its top for temporarily storing feces and sewage; the pipeline system is also used to connect the storage tank and the chemical treatment tank, and the pump assembly is used to transport the separated feces and sewage to the storage tank.

[0007] Furthermore, the sewage treatment sanitation vehicle also includes: a chemical reagent mixing tank; the chemical reagent mixing tank is used to dissolve the chemical reagents, and the pipeline system is also used to connect the chemical reagent mixing tank and the chemical treatment tank.

[0008] Furthermore, the chemical reagent mixing tank includes: a stirring component and a conveying component; the conveying component is provided with an inlet pipe connected to an external water source, and an outlet pipe for the external water source to enter the chemical reagent mixing tank; the stirring component is used to stir the water and chemical reagents in the chemical reagent mixing tank.

[0009] Furthermore, the chemical reagent mixing tank has a stirring chamber and a temporary storage chamber; an external water source is used to enter the stirring chamber through the outlet pipe, and a filter screen is provided between the stirring chamber and the temporary storage chamber; the stirring element is arranged above the stirring chamber, and the temporary storage chamber is connected to the chemical treatment tank through the pipeline system.

[0010] Furthermore, the stirring chamber has an inlet for adding chemical agents, and the inlet is provided with a hopper with an inverted trapezoidal cross-section.

[0011] Furthermore, the feces and waste separation assembly also includes: a stirring shaft and a driving component; the separation tank has a filter layer for separating feces, waste and sewage, the stirring shaft is rotatably disposed inside the separation tank, and the driving component is used to drive the stirring shaft to rotate inside the separation tank; the stirring shaft has a blade portion that forms a gap with the filter layer, and the blade portion is used to push the feces, waste and sewage to move inside the separation tank so that the feces and sewage pass through the filter layer and enter the separation chamber.

[0012] Furthermore, one end of the separation tank is provided with an inspection door; one end of the inspection door is hinged to the separation tank, and a fixing member is provided on one side of the separation tank, the fixing member being used to fix the inspection door to the separation tank.

[0013] Furthermore, the inspection door is equipped with a detection device, which is used to detect the fullness of the garbage in the separation bin.

[0014] Furthermore, the detection component is located in the upper half of the inspection door.

[0015] The beneficial effects of this application are as follows:

[0016] 1. The feces and waste separation unit can separate pumped feces, waste and sewage, allowing the feces and sewage to enter the separation tank. Through the pump assembly and pipeline system, the feces and sewage are sequentially sent to the chemical treatment tank and mechanical dewatering assembly, so as to achieve timely treatment of feces, waste and sewage. It eliminates the need to transport untreated feces, sewage and waste to fixed treatment plants over long distances, greatly shortening the operation time and reducing operating costs.

[0017] 2. The separated feces and sewage are treated by chemical agents added to the chemical treatment tank. The treated feces are then dewatered by the mechanical dewatering unit to produce fecal residue, and the treated sewage is separated. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0019] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0020] In the attached diagram:

[0021] Figure 1 This is an overall schematic diagram based on Embodiment 1 of this application;

[0022] Figure 2 This is an overall schematic diagram based on Embodiment 2 of this application;

[0023] Figure 3 This is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the separation barrel, separation box, detection component and some surrounding parts;

[0024] Figure 4 This is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the stirring shaft, blade section, filter layer and surrounding parts;

[0025] Figure 5 This is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the contact plate, movable rod, limiting part and surrounding parts;

[0026] Figure 6 This is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the chemical treatment tank, the chemical reagent mixing tank and some surrounding parts;

[0027] Figure 7 This is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the drive motor, cover plate, grip rod and some surrounding parts;

[0028] Figure 8 This is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the stirring chamber, the temporary storage chamber filter screen and some surrounding parts;

[0029] Figure 9This is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the extension plate and guide plate on the hopper, as well as the structure of some surrounding parts.

[0030] Figure label:

[0031] 1. Feces and waste separation assembly; 11. Separation bucket; 111. Filter layer; 12. Separation box; 13. First pipeline; 14. Second pipeline; 15. First vacuum pump; 16. Stirring shaft; 161. Blade section; 17. Drive component; 18. Inspection door; 19. Fixing component; 191. Handwheel; 192. Screw; 193. Fixing rod; 1931. Engaging gap; 20. Detection component; 201. Fixing base; 202. Movable rod; 2021. Limiting part; 203. Contact plate; 204. Spring;

[0032] 2. Chemical treatment tank; 21. Third pipeline; 22. Fourth pipeline; 23. Second vacuum pump; 24. Sealing cover; 25. Sealing plate;

[0033] 3. Mechanical dehydration assembly; 31. Fifth pipeline; 311. First butterfly valve;

[0034] 4. Storage tank; 41. Sixth pipeline; 411. Second butterfly valve;

[0035] 5. Chemical reagent mixing tank; 51. Seventh pipeline; 511. First vane pump; 52. Agitator; 521. Drive motor; 522. Agitator rod; 523. Agitator section; 53. Conveying component; 531. Inlet pipe; 532. Outlet pipe; 54. Agitator chamber; 541. Hopper; 5411. Extension plate; 5412. Guide plate; 55. Temporary storage chamber; 56. Filter screen; 561. Holding groove; 57. Cover plate; 571. Holding rod. Detailed Implementation

[0036] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0037] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0038] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0039] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0040] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0041] Example 1

[0042] Reference Figure 1A sanitation vehicle for treating sewage includes a sewage and waste separation component 1, a chemical treatment tank 2, a mechanical dehydration component 3, a piping system, and a pump assembly, all mounted on the vehicle. Specifically, the sewage and waste separation component 1, chemical treatment tank 2, mechanical dehydration component 3, piping system, and pump assembly are all fixedly mounted on a platform at the rear of the driver's cab. In other embodiments, this platform is equipped with a protective shell to cover the sewage and waste separation component 1, chemical treatment tank 2, mechanical dehydration component 3, piping system, and pump assembly to prevent them from being exposed to sunlight or rain. In this application, neither the sanitation vehicle nor the platform at the rear of the driver's cab is shown in the accompanying drawings. The sewage and waste separation component 1 includes a separation bucket 11 and a separation box 12. The separation bucket 11 separates sewage, waste, and sewage pumped into it, allowing the sewage and wastewater to enter the separation box 12, while the waste remains in the separation bucket 11. The waste in the separation bucket 11 can be transported by other vehicles to a waste treatment plant for processing. The pump assembly is used to transport the feces and sewage in the separation tank 12 to the chemical treatment tank 2; the chemical treatment tank 2 is used to treat the separated feces and sewage by adding chemical agents; the chemical agents used in this application are organic polymer flocculants or coagulants, with organic polymer flocculants being preferred in this application. In other embodiments, organic polymer flocculants and coagulants are used simultaneously. Organic polymer flocculants mainly cause the dirt in the sewage to aggregate into large clumps of sediment, thereby turning the sewage into clean water. The mechanical dewatering assembly 3 is used to dewater the feces treated with chemical agents to produce fecal sludge, and discharges the fecal sludge and the treated sewage. The fecal sludge produced by the mechanical dewatering assembly 3 can be used as raw material for organic fertilizer, enabling resource recycling. The mechanical dewatering assembly 3 refers to a screw press or a flat disc dewatering machine, with a screw press being preferred in this application. After treatment in chemical treatment tank 2, the feces and clean water enter through the feed inlet of the screw press. Inside the screw press, the feces are dehydrated by screw extrusion. The separated clean water is discharged from the filtrate outlet at the bottom of the screw press, and the dehydrated sludge is continuously discharged from the sludge outlet at the end of the screw press. The method of dehydrating feces using a screw press is existing technology and will not be described in detail here, nor is it shown in the attached drawings. The pipeline system is used to connect the feces and waste separation component 1, the chemical treatment tank 2, and the mechanical dewatering component 3. The feces and waste separation component 1 can separate the pumped feces, waste, and sewage, allowing the feces and sewage to enter the separation tank 12. Through the pump assembly and pipeline system, the feces and sewage are sequentially fed into the chemical treatment tank 2 and the mechanical dewatering component 3, achieving timely treatment of feces, waste, and sewage. This eliminates the need for long-distance transportation of untreated feces, sewage, and waste to fixed treatment plants, significantly shortening operation time and reducing operating costs. The separated feces and sewage are treated by chemical agents added to the chemical treatment tank 2, and then the treated feces are dehydrated by the mechanical dewatering component 3 to produce fecal residue, and the treated sewage is separated.The separated manure residue can be used as raw material for organic fertilizer.

[0043] In detail, the piping system includes a first pipe 13, a second pipe 14, a third pipe 21, a fourth pipe 22, and a fifth pipe 31. The pump assembly includes a first vacuum pump 15 and a second vacuum pump 23. One end of the first pipe 13 is connected to the suction port of the first vacuum pump 15, and the other end of the first pipe 13 extends to the top of the separation tank 11. One end of the second pipe 14 is connected to the separation tank 11, and the other end of the second pipe 14 extends into the septic tank. When the first vacuum pump 15 is started, it creates a negative pressure in the separation tank 11 through the first pipe 13, thereby drawing feces, sewage, and garbage from the septic tank into the separation tank 11 through the second pipe 14.

[0044] One end of the third pipe 21 is connected to the suction port of the second vacuum pump 23, and the other end of the third pipe 21 is connected to the chemical treatment tank 2. One end of the fourth pipe 22 is connected to the separation box 12, and the other end of the fourth pipe 22 is connected to the chemical treatment tank 2. When the second vacuum pump 23 is started, it creates a negative pressure in the chemical treatment tank 2 through the third pipe 21, thereby drawing the feces and sewage in the separation box 12 into the chemical treatment tank 2 through the fourth pipe 22.

[0045] One end of the fifth pipeline 31 is connected to the chemical treatment tank 2, and the other end is connected to the feed inlet of the screw press. A first butterfly valve 311 is fixedly installed on the fifth pipeline 31. When the valve of the first butterfly valve 311 is closed in the fifth pipeline 31, the second vacuum pump 23 starts; when the valve of the first butterfly valve 311 is open in the fifth pipeline 31, the second vacuum pump 23 closes. The first butterfly valve 311 can be controlled to open or close by a pneumatic actuator.

[0046] In other embodiments, the pump assembly is a sewage pump.

[0047] Specifically, the chemical treatment tank 2 has an opening for workers to add chemicals, and a sealing cover 24 for sealing the opening, which is threadedly connected to the opening. The opening is mounted on a sealing plate 25, which is bolted to the body of the chemical treatment tank 2. A sealing rubber ring is provided between the sealing plate 25 and the chemical treatment tank 2 to ensure a sealed environment. Workers can open the sealing plate 25 to clean any residual chemicals or feces inside the chemical treatment tank 2.

[0048] Example 2

[0049] See attached document Figures 2-9The difference from Embodiment 1 is that the sanitation vehicle is equipped with a storage tank 4 on top for temporarily storing feces and sewage. The storage tank 4 is a sealed, rectangular cavity structure, the detailed structure of which is not shown in the figure. A piping system is also used to connect the storage tank 4 to the chemical treatment tank 2. A pump assembly is used to transport the separated feces and sewage into the storage tank 4. One end of the third pipe 21 is connected to the suction port of the second vacuum pump 23, and the other end of the third pipe 21 connects to the bottom of the storage tank 4. One end of the fourth pipe 22 is connected to the separation box 12, and the other end of the fourth pipe 22 connects to the bottom of the storage tank 4. When the second vacuum pump 23 is started, it creates a negative pressure in the storage tank 4 through the third pipe 21, thereby drawing the feces and sewage from the separation box 12 into the storage tank 4 through the fourth pipe 22.

[0050] The piping system also includes a sixth pipe 41. One end of the sixth pipe 41 is connected to the bottom of the storage tank 4, and the other end is connected to the chemical treatment tank 2. Feces and sewage located in the storage tank 4 flow into the chemical treatment tank 2 by gravity. A second butterfly valve 411 is fixedly installed on the sixth pipe 41. When the valve of the second butterfly valve 411 is closed within the sixth pipe 41, the second vacuum pump 23 starts; when the valve of the second butterfly valve 411 is open within the sixth pipe 41, the second vacuum pump 23 closes. The second butterfly valve 411 can be controlled to open or close by a pneumatic actuator.

[0051] In this application, the storage tank 4 occupies a large space, so it is placed on top of the sanitation vehicle. The platform below the storage tank 4 (i.e., the platform at the rear of the driver's cab of the sanitation vehicle) is fixedly equipped with the feces and garbage separation assembly 1, the chemical treatment tank 2, the mechanical dewatering assembly 3, and the pump assembly. Furthermore, the volume of the storage tank 4 is much larger than the volume of the separation box 12. When the separation tank 11 separates feces, garbage, and sewage, the feces and sewage located in the separation box 12 can be temporarily stored in the storage tank 4, freeing up sufficient space within the separation box 12.

[0052] Specifically, the sewage treatment sanitation vehicle also includes: a chemical reagent mixing tank 5; the chemical reagent mixing tank 5 is used to dissolve the chemical reagents, and the pipeline system is used to connect the chemical reagent mixing tank 5 and the chemical treatment tank 2. The pipeline system also includes a seventh pipeline 51. One end of the seventh pipeline 51 is connected to the chemical reagent mixing tank 5, and the other end is connected to the chemical treatment tank 2. The pump assembly also includes a first vane pump 511. The first vane pump 511 is fixedly installed on the seventh pipeline 51. When the first vane pump 511 is started, the chemical reagents dissolved in the chemical reagent mixing tank 5 enter the chemical treatment tank 2 through the seventh pipeline 51. The function of the chemical treatment tank 2 is to provide space for the chemical reagents to react with the sewage and wastewater. If the chemical reagents are directly put into the chemical treatment tank 2, the chemical reagents will come into direct contact with the sewage and wastewater without being fully dissolved, and the effect will be greatly reduced. Therefore, a chemical reagent mixing tank 5 is set up in this application to ensure that the chemical reagent is fully dissolved. After the chemical reagent is completely dissolved, it is then transported to the chemical treatment tank 2.

[0053] Specifically, the chemical reagent mixing tank 5 includes a stirring element 52 and a conveying element 53. The conveying element 53 is a second vane pump or a diaphragm pump, preferably a second vane pump in this application. The conveying element 53 is provided with an inlet pipe 531 connected to an external water source, and an outlet pipe 532 for external water to enter the chemical reagent mixing tank 5; when the conveying element 53 is started, external water enters from the inlet pipe 531 and is discharged into the chemical reagent mixing tank 5 from the outlet pipe 532. The stirring element 52 is used to stir the water and chemical reagents in the chemical reagent mixing tank 5. The stirring element 52 includes a drive motor 521, a support frame, a stirring rod 522, and a stirring part 523 fixedly mounted on the stirring rod 522, the stirring part 523 having a plate-like structure. In this application, a support frame is bolted to the top of the chemical reagent mixing tank 5. A drive motor 521 is fixed to the support frame. One end of the stirring rod 522, away from the stirring section 523, is fixed to the output shaft of the drive motor 521. The end of the stirring rod 522 with the stirring section 523 extends into the interior of the chemical reagent mixing tank 5. When the drive motor 521 starts, it drives the stirring rod 522 and the stirring section 523 to rotate. The stirring section 523 is used to stir the water and chemical reagents. The stirring element 52 is provided to enable the chemical reagents in the chemical reagent mixing tank 5 to dissolve quickly, so that the dissolved chemical reagents can react more fully with the feces and sewage.

[0054] Specifically, the chemical reagent mixing tank 5 has a stirring chamber 54 and a temporary storage chamber 55. External water enters the stirring chamber 54 through an outlet pipe 532. A filter screen 56 is installed between the stirring chamber 54 and the temporary storage chamber 55. The filter screen 56 does not affect the passage of the chemical reagents dissolved in the water. A stirring element 52 is positioned above the stirring chamber 54, and the temporary storage chamber 55 is connected to the chemical treatment tank 2 via a seventh pipe 51. When the chemical reagents are added to the stirring chamber 54, although they are stirred by the stirring part 523, a small amount of incompletely dissolved particles or clumps may still remain. The filter screen 56 can effectively intercept these large particles, preventing them from entering the first vane pump 511 and causing damage to it.

[0055] In detail, a chute is provided between the stirring chamber 54 and the temporary storage chamber 55, and a fixing block is provided around the filter screen 56, which is slidably connected to the chute. A grip groove 561 for hand gripping is provided at one end of the filter screen 56 away from the bottom of the chemical reagent mixing tank 5.

[0056] Specifically, the mixing chamber 54 has a dispensing port for adding chemical agents, and the dispensing port is equipped with a hopper 541 with an inverted trapezoidal cross-section. Even if the angle of dispensing is slightly off, the chemical agents can slide into the dispensing port along the inclined side wall, and are less likely to spill outside the hopper 541. In detail, the hopper 541 is fixed to the chemical agent mixing tank 5 by bolts. The hopper 541 has an extension plate 5411 extending into the mixing chamber 54. One end of the extension plate 5411 has a guide plate 5412 forming a 60° angle with the bottom surface of the mixing chamber 54. The guide plate 5412 is used to prevent the added chemical agents from falling onto the mixing section 523. A cover plate 57 is also provided above the temporary storage chamber 55. One end of the cover plate 57 is hinged to the chemical agent mixing tank 5, and the end of the cover plate 57 away from the hinge axis has a U-shaped gripping rod 571. The length of the cover plate 57 is greater than 1 / 2 of the length of the chemical reagent mixing tank 5. When the cover plate 57 is placed on the chemical reagent mixing tank 5, the cover plate 57 can press down the filter screen 56 to prevent the filter screen 56 from floating in the water.

[0057] Specifically, the feces and waste separation assembly 1 further includes: a stirring shaft 16 and a drive component 17; the drive component 17 is a motor. The separation tank 11 has a filter layer 111 for separating feces, waste, and sewage. The stirring shaft 16 is rotatably disposed inside the separation tank 11, and the drive component 17 drives the stirring shaft 16 to rotate within the separation tank 11. The stirring shaft 16 has blades 161 that form a gap with the filter layer 111. The blades 161 are used to propel feces, waste, and sewage within the separation tank 11, allowing feces and sewage to pass through the filter layer 111 and enter the separation chamber 12, while bottles, stones, and other waste mixed in with the feces that cannot pass through the filter layer 111 remain in the separation tank 11. The stirring shaft 16 is an auger shaft, and the blades 161 are blades of the auger shaft. In other embodiments, the drive component 17 drives the stirring shaft 16 to rotate via a belt or gears.

[0058] In detail, the separation tank 11 has a barrel-shaped structure. The filter layer 111 has an annular metal plate-shaped structure. Specifically, the separation tank 11 has a first chamber and a second chamber. The filter layer 111 is located between the first chamber and the second chamber. The feces, garbage, and sewage drawn into the separation tank 11 are located in the first chamber. When the driving component 17 drives the stirring shaft 16 to rotate, the blades 161 move the feces, garbage, and sewage in the first chamber. The feces and sewage pass through the filter holes of the filter layer 111 and enter the second chamber. The feces and sewage that enter the second chamber fall into the separation box 12, thereby achieving the separation of feces, sewage, and garbage.

[0059] Specifically, one end of the separator 11 is provided with an inspection door 18; one end of the inspection door 18 is hinged to the separator 11, and a fixing member 19 is provided on one side of the separator 11. The fixing member 19 is used to fix the inspection door 18 to the separator 11. The fixing member 19 can securely lock the inspection door 18 to the separator 11, ensuring that the inspection door 18 will not be accidentally opened due to vibration or internal pressure during operation.

[0060] In detail, the fixing component 19 includes a handwheel 191, a screw 192, and a fixing rod 193. The fixing rod 193 is fixedly mounted on the inspection door 18. One end of the fixing rod 193 has an engagement gap 1931 for the screw 192 to engage, and the other end is hinged to the separation bucket 11. One end of the screw 192 is rotatably connected to the separation bucket 11, and the handwheel 191 is threadedly connected to the screw 192. When opening the inspection door 18, the worker can rotate the handwheel 191 to create a gap between the handwheel 191 and the fixing rod 193, and then rotate the screw 192 and the handwheel 191 so that the screw 192 is outside the engagement gap 1931, thereby opening the inspection door 18. When closing the inspection door 18, the worker needs to rotate the screw 192 into the engagement gap 1931, and then rotate the handwheel 191 to press the handwheel 191 against the fixing rod 193, thereby fixing the inspection door 18 to the separation bucket 11. Specifically, the side of the inspection door 18 facing the separation tank 11 is provided with a sealing rubber ring so that an effective seal can be ensured when the inspection door 18 is fixed to the separation tank 11.

[0061] Specifically, a detection element 20 is installed on the inspection door 18 to detect the fullness of the waste in the separation bin 11. By installing the detection element 20 on the inspection door 18, the fullness of the waste in the separation bin 11 can be detected in real time, and staff can be promptly reminded to empty it.

[0062] Specifically, the detection element 20 is located in the upper half of the inspection door 18. Positioning the detection element 20 in the upper half of the inspection door 18 accurately reflects the fullness of the waste in the separation bin 11. Since feces, garbage, and sewage accumulate at the bottom of the separation bin 11 after entering from above, if the detection element 20 were located in the lower half, it would be triggered falsely when garbage enters the bin or when the bin is not fully filled. Therefore, in this embodiment, the detection element 20 is positioned in the upper half of the inspection door 18 so that it is only triggered when garbage accumulates to a certain height within the separation bin 11 and is pushed by the stirring shaft 16.

[0063] Specifically, the detection component 20 includes a fixed base 201. The fixed base 201 is detachably connected to the inspection door 18 by bolts, allowing the entire detection component 20 to be easily removed from the inspection door 18 for maintenance or replacement. The fixed base 201 has a movable rod 202 and a contact plate 203; the movable rod 202 and the contact plate 203 are connected, and the movable rod 202 is slidably connected to the fixed base 201; the contact plate 203 is located inside the separation tank 11. When the contact plate 203 comes into contact with the feces inside the separation tank 11, the contact plate 203 drives the movable rod 202 to move away from the separation tank 11. As the waste gradually accumulates inside the separation tank 11, and the stirring shaft 16 pushes the waste to move inside the separation tank 11, the waste comes into contact with the contact plate 203, and the movable rod 202 extends outward from the fixed base 201. The operator can judge the amount of waste in the separation tank 11 by observing the extension of the movable rod 202. In this embodiment, there is a gap between the end of the stirring shaft 16 away from the drive member 17 and the inspection door 18.

[0064] A spring 204 is also provided between the contact plate 203 and the inspection door 18. The spring 204 is used to reset the contact plate 203 and the movable rod 202. The spring 204 provides the reset force. After the garbage in the separation bin 11 is cleaned, the contact plate 203 can automatically return to its initial position under the action of the spring 204, and the movable rod 202 retracts, without manual intervention, enabling reuse. The setting of the spring 204 also makes the contact plate 203 have a certain buffering effect on the pushing force of the garbage, avoiding damage to the movable rod 202 due to excessive extension caused by the instantaneous impact of the garbage.

[0065] The end of the movable rod 202 away from the contact plate 203 has a limiting part 2021 to prevent the movable rod 202 from detaching from the fixed base 201. The limiting part 2021 is a plate-shaped structure and is integrally formed with the movable rod 202. During the process of the spring 204 pushing the contact plate 203 and the movable rod 202 to reset, the movable rod 202 will be subjected to a thrust inward toward the separation barrel 11. The limiting part 2021 abuts against the outer end face or the inner step of the fixed base 201, thereby reliably preventing the movable rod 202 from completely detaching from the fixed base 201.

[0066] Specifically, the fixed base 201 has an installation groove for the sealing ring. The outer diameter of the sealing ring matches the diameter of the installation groove, and the inner diameter matches the diameter of the movable rod 202. The sealing ring is installed between the fixed base 201 and the movable rod 202, which can effectively prevent liquid, feces, or odors in the separation tank 11 from leaking out of the tank along the gap of the movable rod 202, ensuring the cleanliness and hygiene of the equipment's working environment.

[0067] Specifically, the contact plate 203, the movable rod 202, and the fixed base 201 are all made of stainless steel. Stainless steel has excellent corrosion resistance, can withstand corrosion for a long time, is not easy to rust, and extends the service life of the detection component 20.

[0068] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A sanitary truck for the treatment of excrements, characterized in that This includes fecal and garbage separation components, chemical treatment tanks, mechanical dewatering components, piping systems, and pump components installed on sanitation vehicles; The feces and waste separation assembly includes: a separation bucket and a separation tank; the separation bucket is used to separate feces, waste and sewage, so that feces and sewage enter the separation tank; the pump assembly is used to transport the feces and sewage in the separation tank to the chemical treatment tank; The chemical treatment tank is used to treat the separated feces and sewage by adding chemical agents; The mechanical dewatering component is used to dewater the feces treated with chemical agents to produce fecal residue, and to discharge the fecal residue and the treated wastewater. The piping system is used to connect the feces and waste separation component, the chemical treatment tank, and the mechanical dewatering component.

2. The sanitation vehicle for treating feces according to claim 1, characterized in that: The sanitation vehicle is equipped with a storage tank on its top for temporarily storing feces and sewage. The pipeline system is also used to connect the storage tank and the chemical treatment tank, and the pump assembly is used to transport the separated feces and sewage to the storage tank.

3. The sanitation vehicle for treating feces according to claim 2, characterized in that: The sewage treatment sanitation vehicle also includes: a chemical reagent mixing tank; The chemical reagent mixing tank is used to dissolve the chemical reagents, and the pipeline system is also used to connect the chemical reagent mixing tank and the chemical treatment tank.

4. A sanitation vehicle for treating feces according to claim 3, characterized in that: The chemical reagent mixing tank includes: a stirring component and a conveying component; The conveying component is equipped with an inlet pipe connected to an external water source and an outlet pipe for external water to enter the chemical reagent mixing tank; the stirring component is used to stir the water and chemical reagents in the chemical reagent mixing tank.

5. A sanitation vehicle for treating feces according to claim 4, characterized in that: The chemical reagent mixing tank has a stirring chamber and a temporary storage chamber; An external water source is used to enter the stirring chamber through the outlet pipe. A filter screen is provided between the stirring chamber and the temporary storage chamber. The stirring element is located above the stirring chamber. The temporary storage chamber is connected to the chemical treatment tank through the pipeline system.

6. A sanitation vehicle for treating feces according to claim 5, characterized in that: The stirring chamber has an inlet for adding chemical agents, and the inlet is equipped with a hopper with an inverted trapezoidal cross-section.

7. A sanitation vehicle for treating feces according to claim 6, characterized in that: The feces and waste separation assembly also includes: a stirring shaft and a drive component; The separation tank has a filter layer for separating feces, garbage and sewage. The stirring shaft is rotatably disposed inside the separation tank, and the driving component is used to drive the stirring shaft to rotate inside the separation tank. The stirring shaft has blades that form a gap with the filter layer. The blades are used to propel feces, garbage, and sewage inside the separation tank so that the feces and sewage pass through the filter layer and enter the separation chamber.

8. A sanitation vehicle for treating feces according to claim 7, characterized in that: One end of the separation tank is provided with an inspection door; one end of the inspection door is hinged to the separation tank, and a fixing member is provided on one side of the separation tank for fixing the inspection door to the separation tank.

9. A sanitation vehicle for treating feces according to claim 8, characterized in that: The inspection door is equipped with a detection device, which is used to detect whether the garbage in the separation bin is full.

10. A sanitation vehicle for treating feces according to claim 9, characterized in that: The detection component is located in the upper part of the inspection door.

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