Vacuum-pumping system for suction-type sewer scavenger

Abstract

The utility model discloses a vacuum-pumping system for a sewage suction truck, which comprises a sewage storage component, a sewage discharge component, a filter component and an oil filter, and the sewage storage component comprises a truck body and a tank body arranged on the truck body; the sewage discharging assembly comprises an air pipe arranged on the tank body, the end, close to the tank body, of the air pipe is communicated with the tank body, the end, away from the tank body, of the air pipe is open, a vacuum pump and a four-way valve are arranged on the air pipe, a first connector and a second connector of the four-way valve are both communicated with the air pipe, and a third connector of the four-way valve is communicated with an inlet of the vacuum pump. A fourth interface of the four-way valve is communicated with an outlet of the vacuum pump; the filtering assembly comprises an oil filter arranged on the air pipe. The oil filter is located at the end, close to the air pipe opening, of the air pipe. The oil filter comprises a shell arranged on the air pipe, the shell is communicated with the air pipe, and a deflection baffle is arranged in the shell. The oil filter has the advantages that the oil filter filters oil gas leaked in the vacuum pump, the cleanliness of air in the air pipe is improved, and the pollution degree to the environment is reduced.

Description

Technical Field

[0001] The utility model relates to the field of sewage suction vehicles, in particular to a vacuum pumping system for sewage suction vehicles. Background Art

[0002] The sewage suction truck is a new type of sanitation vehicle that collects, transfers, cleans and transports sludge and sewage to avoid secondary pollution. The sewage suction truck can self-prime and self-drain, has a fast working speed, large capacity, and convenient transportation. It is suitable for collecting and transporting liquid substances such as feces, mud, crude oil, etc.

[0003] The sewage suction truck generally includes a vehicle body, on which there is a tank body and a hydraulic vacuum pump. During the sewage suction operation, the hydraulic vacuum pump sucks the tank body to form a negative pressure, and the sludge, sewage, etc. enter the tank body under the action of atmospheric pressure. When sewage needs to be discharged, the tank body needs to be pressurized, and reverse pressurization can be achieved by changing the four-way valve.

[0004] Regarding the above-mentioned related technologies, there are the following defects: the hydraulic vacuum pump generally adopts a hydraulic motor. When the hydraulic vacuum pump works for a long time, the oil and gas in the hydraulic motor will inevitably leak into the hydraulic vacuum pump and be discharged, causing environmental pollution. Utility Model Content

[0005] The utility model aims to overcome the above technical deficiencies and propose a vacuum pumping system for a sewage suction vehicle to solve the technical problem in the prior art that oil and gas leaked from a vacuum pump are directly discharged into the air, causing environmental pollution.

[0006] In order to achieve the above technical objectives, the technical solution of the utility model provides a vacuum system for a sewage suction vehicle, including a sewage storage component, wherein the sewage storage component includes a vehicle body and a tank body arranged on the vehicle body;

[0007] A sewage discharge component, the sewage discharge component includes an air pipe arranged on the tank body, one end of the air pipe close to the tank body is connected to the tank body, and one end of the air pipe away from the tank body is open, a vacuum pump and a four-way valve are arranged on the air pipe, the first interface and the second interface of the four-way valve are both connected to the air pipe, the third interface of the four-way valve is connected to the inlet of the vacuum pump, and the fourth interface of the four-way valve is connected to the outlet of the vacuum pump;

[0008] A filter assembly, the filter assembly comprising an oil filter disposed on the air pipe, the oil filter being located at one end of the air pipe close to the air pipe opening; and,

[0009] The oil filter comprises a shell body arranged on the air pipe, the shell body is communicated with the air pipe, and a deflection baffle is arranged in the shell body.

[0010] In some embodiments, the deflector baffle includes a plurality of plate bodies disposed in a shell, and the plurality of plate bodies are staggeredly arranged in sequence along the length direction of the shell.

[0011] In some embodiments, both ends of the shell are provided with limit plates, and both ends of the air pipe located on the shell are threadedly connected with screw barrels, and the two screw barrels are used to respectively press against the two limit plates to fix the shell.

[0012] In some embodiments, the screw barrel is provided with an anti-loosening tooth ring, and the air pipe is slidably connected with an anti-loosening tooth block for engaging with the anti-loosening tooth ring to limit the rotation of the screw barrel.

[0013] In some embodiments, a sealing layer is provided on one side of the screw barrel close to the limiting plate.

[0014] In some embodiments, an anti-slip layer is provided on the side of the sealing layer away from the barrel.

[0015] In some embodiments, a silencer is provided at the opening of the trachea.

[0016] In some embodiments, a chimney pipe is provided on the end of the muffler away from the air pipe.

[0017] In some embodiments, the silencer includes an outer cylinder and an inner cylinder arranged inside the outer cylinder, sound insulation cotton is arranged between the outer cylinder and the inner cylinder, and an airway is arranged inside the inner cylinder.

[0018] In some embodiments, a core tube is provided on the inner side of the inner tube, sound insulation cotton is provided inside the core tube, and the core tube divides the airway into a ring shape.

[0019] Compared with the prior art, the beneficial effects of the utility model include: the oil filter filters the leaked oil and gas in the vacuum pump, thereby improving the cleanliness of the air in the air pipe and reducing the degree of pollution to the environment; when the oil and gas pass through the shell, the oil and gas move forward along the deflection baffle, extending the forward path of the oil and gas within the limited space of the shell, thereby further improving the filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of a vacuum pumping system for a sewage suction vehicle provided by the utility model;

[0021] Figure 2 The utility model provides a vacuum system for a sewage suction vehicle. Figure 1 A magnified view of the structure at center;

[0022] Figure 3 The utility model provides a vacuum system for a sewage suction vehicle. Figure 1 Enlarged view of the structure at point B in the middle.

[0023] Description of reference numerals:

[0024] 1-sewage storage component, 11-tank body, 2-sewage discharge component, 21-air pipe, 22-vacuum pump, 221-inlet, 222-outlet, 23-four-way valve, 231-first interface, 232-second interface, 233-third interface, 234-fourth interface, 24-muffler, 25-chimney pipe, 26-outer cylinder, 27-inner cylinder, 28-sound insulation cotton, 29-air duct, 3-filter component, 4-oil filter, 41-shell, 42-baffle, 43-plate body, 44-limiting plate, 45-screw barrel, 46-anti-loosening tooth ring, 47-anti-loosening tooth block, 48-sealing layer, 49-anti-slip layer, 5-core barrel. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0026] The utility model provides a vacuum system for a sewage suction vehicle, the structure of which is as follows: Figure 1 - Figure 3 As shown, it includes a sewage storage component 1, a sewage discharge component 2, a filter component 3 and an oil filter 4.

[0027] The sewage storage assembly 1 comprises a vehicle body and a tank body 11 arranged on the vehicle body.

[0028] The sewage discharge component 2 includes an air pipe 21 arranged on the tank body 11, and the end of the air pipe 21 close to the tank body 11 is connected to the tank body 11, and the end of the air pipe 21 away from the tank body 11 is open. A vacuum pump 22 and a four-way valve 23 are provided on the air pipe 21, and the first interface 231 and the second interface 232 of the four-way valve 23 are both connected to the air pipe 21, the third interface 233 of the four-way valve 23 is connected to the inlet 221 of the vacuum pump 22, and the fourth interface 234 of the four-way valve 23 is connected to the outlet 222 of the vacuum pump 22.

[0029] The filter assembly 3 includes an oil filter 4 disposed on the air pipe 21 . The oil filter 4 is located at one end of the air pipe 21 close to the opening of the air pipe 21 .

[0030] The oil filter 4 includes a shell 41 disposed on the air pipe 21 . The shell 41 is communicated with the air pipe 21 . A baffle plate 42 is disposed inside the shell 41 .

[0031] When in use, when the tank body 11 is evacuated, the air in the tank body 11 is discharged along the air pipe 21 under the action of the vacuum pump 22. When the oil and gas leaked from the vacuum pump 22 passes through the oil filter 4, the oil filter 4 filters the oil and gas leaked from the vacuum pump 22, thereby improving the cleanliness of the air in the air pipe 21 and reducing the degree of environmental pollution, which is consistent with the concept of sustainable development. When the oil and gas pass through the oil filter 4, the oil and gas enter the housing 41, and the oil and gas move forward along the baffle plate 42. In the limited space of the housing 41, the forward path of the oil and gas is extended, further improving the filtering effect.

[0032] In the utility model, the oil filter 4 filters the leaked oil and gas in the vacuum pump 22, thereby improving the cleanliness of the air in the air pipe 21 and reducing the degree of pollution to the environment. When the oil and gas pass through the shell 41, the oil and gas move forward along the deflection baffle 42, extending the forward path of the oil and gas within the limited space of the shell 41, and further improving the filtering effect.

[0033] To improve the filtering effect of oil filter 4, please refer to Figure 1 and Figure 2 In a preferred embodiment, the deflector baffle 42 includes five plates 43 fixedly connected to the shell 41. The number of the plates 43 can be adjusted according to actual conditions. The five plates 43 are arranged in a staggered manner along the length direction of the shell 41.

[0034] When in use, multiple plates 43 are staggered in sequence along the length direction of the shell 41. Under the guidance of the plates 43, the oil and gas return in an S shape in the shell 41, and the oil and gas collide with and adhere to the plates 43 to achieve oil and gas filtering. The structure is simple and the filtering effect is good.

[0035] In order to facilitate the cleaning and replacement of the oil filter 4, please refer to Figure 2 In a preferred embodiment, both ends of the shell 41 are fixedly connected to the limit plates 44, and both ends of the air pipe 21 are threadedly connected with screw barrels 45 along the axial direction of the air pipe 21, and the two screw barrels 45 are used to respectively press against the sides of the two limit plates 44 that are far away from each other, thereby fixing the shell 41.

[0036] When in use, when installing the housing 41, align the housing 41 with the air pipe 21, and tighten the screw barrel 45 toward the housing 41 until the screw barrel 45 is tightly against the limit plate 44, and the housing 41 is fixed. When disassembling the housing 41, unscrew the screw barrel 45 away from the housing 41, and then remove the housing 41. The disassembly and assembly are convenient, and the oil filter 4 can be cleaned or replaced easily, which improves the work efficiency.

[0037] In order to improve the airtightness of the air pipe 21, please refer to Figure 2In a preferred embodiment, the two sides of the two screw barrels 45 that are away from each other are fixedly connected with anti-loosening tooth rings 46, and the air pipe 21 is slidably connected along the axial direction of the air pipe 21 with anti-loosening tooth blocks 47 that are used to engage with the anti-loosening tooth rings 46 to limit the rotation of the screw barrel 45.

[0038] When the vacuum pump 22 is in use, the impact of the air in the air pipe 21 may easily cause the screw barrel 45 to rotate and loosen from the housing 41, thereby reducing the air tightness in the air pipe 21 and affecting the use. When the anti-loosening tooth block 47 is engaged with the anti-loosening tooth ring 46, the possibility of the screw barrel 45 rotating and loosening from the housing 41 is reduced under the limiting effect of the anti-loosening tooth block 47 and the anti-loosening tooth ring 46, thereby improving the air tightness in the air pipe 21.

[0039] In order to further improve the airtightness of the air pipe 21, please refer to Figure 2 In a preferred embodiment, a sealing layer 48 is bonded to one side of the screw barrel 45 close to the limiting plate 44, and the sealing layer 48 is a rubber pad.

[0040] During use, when the screw barrel 45 is pressed against the limiting plate 44, the sealing layer 48 is squeezed and deformed, so that the screw barrel 45 and the limiting plate 44 fit more closely, further improving the airtightness in the air pipe 21 and reducing the possibility of leakage.

[0041] In order to further improve the airtightness of the air pipe 21, please refer to Figure 2 In a preferred embodiment, an anti-skid layer 49 is provided on the side of the sealing layer 48 away from the screw barrel 45 , and the anti-skid layer 49 is a protrusion fixedly connected to the sealing layer 48 .

[0042] During use, when the sealing layer 48 is squeezed and deformed, the protrusions on the two sealing layers 48 embed into each other, thereby increasing the friction between the screw barrel 45 and the shell 41, reducing the possibility of slipping, and improving the airtightness in the air pipe 21.

[0043] To reduce noise, please refer to Figure 3 In a preferred embodiment, a muffler 24 is provided at the opening of the air pipe 21 .

[0044] When in use, when the air in the trachea 21 impacts the inner wall of the trachea 21, a certain amount of noise will be generated, affecting the normal life of the surrounding residents. The muffler 24 plays a noise reduction role, reducing the impact of the noise on the surrounding residents.

[0045] To reduce the spread of smoke, please refer to Figure 3 In a preferred embodiment, a chimney pipe 25 is fixedly connected to one end of the muffler 24 away from the air pipe 21. The diameter of the chimney pipe 25 is smaller than the diameter of the air pipe 21, and the chimney pipe 25 is bent at ninety degrees.

[0046] When in use, the chimney pipe 25 has a certain tightening effect on the smoke in the air pipe 21, so that the smoke in the air pipe 21 is discharged in a concentrated manner, thereby reducing the diffusion degree of the smoke and reducing the pollution to the environment.

[0047] To improve the sound insulation, please refer to Figure 3 In a preferred embodiment, the muffler 24 includes an outer tube 26 and an inner tube 27 fixedly connected to the inner side of the outer tube 26 , sound insulation cotton 28 is filled between the outer tube 26 and the inner tube 27 , and an air duct 29 is opened on the inner side of the inner tube 27 .

[0048] When in use, the clamping action of the outer tube 26 and the inner tube 27 plays a certain shaping role on the sound insulation cotton 28, which is convenient for the installation of the sound insulation cotton 28. When the air in the trachea 21 passes through the airway 29, it contacts the sound insulation cotton 28 in all directions. Under the sound absorption effect of the sound insulation cotton 28, the propagation of noise is reduced.

[0049] To further improve the sound insulation, please refer to Figure 3 In a preferred embodiment, a core tube 5 is fixedly connected to the inner side of the inner tube 27, and a sound insulation cotton 28 is arranged in the core tube 5. The core tube 5 divides the airway 29 into a ring shape.

[0050] When in use, the core tube 5 is located on the inner side of the airway 29, and the inner tube 27 is located on the outer side of the airway 29. When the air in the trachea 21 passes through the airway 29, it simultaneously contacts the sound insulation cotton 28 in the core tube 5 and the sound insulation cotton 28 between the outer tube 26 and the inner tube 27. With the joint action of the two layers of sound insulation cotton 28, the noise reduction effect is further improved.

[0051] In order to better understand the present invention, the following Figure 1 - Figure 3 The working principle of the technical solution of the vacuum system for a sewage suction vehicle of the utility model is described in detail: when the tank body 11 is vacuumed, the air in the tank body 11 is discharged along the air pipe 21 under the action of the vacuum pump 22, and the oil and gas leaked in the vacuum pump 22 passes through the oil filter 4, and the oil filter 4 filters the oil and gas leaked in the vacuum pump 22, thereby improving the cleanliness of the air in the air pipe 21 and reducing the degree of pollution to the environment, which is consistent with the concept of sustainable development. When the oil and gas pass through the oil filter 4, the oil and gas enter the housing 41, and the oil and gas move forward along the baffle 42, extending the forward path of the oil and gas in the limited space of the housing 41, further improving the filtering effect.

[0052] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A vacuum system for a sewage suction vehicle, characterized in that: include: A sewage storage assembly, the sewage storage assembly comprising a vehicle body and a tank body disposed on the vehicle body; A sewage discharge component, the sewage discharge component includes an air pipe arranged on the tank body, one end of the air pipe close to the tank body is connected to the tank body, and one end of the air pipe away from the tank body is open, a vacuum pump and a four-way valve are arranged on the air pipe, the first interface and the second interface of the four-way valve are both connected to the air pipe, the third interface of the four-way valve is connected to the inlet of the vacuum pump, and the fourth interface of the four-way valve is connected to the outlet of the vacuum pump; A filter assembly, the filter assembly comprising an oil filter disposed on the air pipe, the oil filter being located at one end of the air pipe close to the air pipe opening; and, The oil filter comprises a shell body arranged on the air pipe, the shell body is communicated with the air pipe, and a deflection baffle is arranged in the shell body.

2. A vacuum system for a sewage suction vehicle according to claim 1, characterized in that: The deflector baffle comprises a plurality of plate bodies arranged in the shell, and the plurality of plate bodies are arranged in a staggered manner in sequence along the length direction of the shell.

3. A vacuum system for a sewage suction vehicle according to claim 1, characterized in that: Both ends of the shell are provided with limit plates, and both ends of the air pipe located on the shell are threadedly connected with screw barrels, and the two screw barrels are used to respectively press against the two limit plates to fix the shell.

4. A vacuum system for a sewage suction vehicle according to claim 3, characterized in that: The screw barrel is provided with an anti-loosening tooth ring, and the air pipe is slidably connected with an anti-loosening tooth block for engaging with the anti-loosening tooth ring to limit the rotation of the screw barrel.

5. The vacuum system for a sewage suction vehicle according to claim 3, characterized in that: A sealing layer is provided on one side of the screw barrel close to the limiting plate.

6. A vacuum system for a sewage suction vehicle according to claim 5, characterized in that: A non-slip layer is arranged on the side of the sealing layer away from the screw barrel.

7. The vacuum system for a sewage suction vehicle according to claim 1, characterized in that: A muffler is arranged at the opening of the air pipe.

8. A vacuum system for a sewage suction vehicle according to claim 7, characterized in that: A chimney pipe is arranged on one end of the muffler away from the air pipe.

9. The vacuum system for a sewage suction vehicle according to claim 7, characterized in that: The silencer comprises an outer cylinder and an inner cylinder arranged inside the outer cylinder, sound insulation cotton is arranged between the outer cylinder and the inner cylinder, and an airway is arranged inside the inner cylinder.

10. A vacuum system for a sewage suction vehicle according to claim 9, characterized in that: A core tube is arranged on the inner side of the inner tube, sound insulation cotton is arranged inside the core tube, and the core tube divides the airway into a ring shape.

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