Modularized detachable movable car washer multi-stage sedimentation tank device

Abstract

The invention relates to the technical field of car washing wastewater treatment, and provides a modular detachable movable car washer multi-stage sedimentation tank device which comprises a first frame and a second frame, a first-stage sedimentation mechanism is arranged on the inner side of the first frame and comprises a first sedimentation tank, and a filter screen is fixedly connected to the top end of the inner side of the first sedimentation tank; a guide plate is fixedly connected to the inner side of the primary sedimentation mechanism; a first liquid guide pipe is fixedly connected to one end of the top of the first sedimentation tank; a sludge discharge hopper is fixedly connected to one end of the bottom of the first sedimentation tank; a mud baffle is slidably connected to the inner side of the sludge discharge hopper; a secondary precipitation mechanism is arranged on the inner side of the second frame, and the outlet end of the secondary precipitation mechanism is connected with a water purifier. According to the mud scraping assembly, an electric push rod is used for pushing a mud scraping plate, and sediment is concentrated to a mud discharging hopper; the linkage piece synchronously drives the mud guard to open, one-key discharging of sediment is achieved, and the manual labor amount is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of car wash wastewater treatment, and in particular to a modular detachable mobile car wash machine multi-stage sedimentation tank device. Background Art

[0002] The technical field of car wash wastewater treatment primarily involves purifying wastewater generated during the car wash process to prevent environmental pollution and achieve water recycling. Car wash wastewater contains large amounts of suspended particulate matter (such as silt and dust), grease, detergent residue, and small amounts of heavy metal contaminants (such as brake pad dust). If these pollutants are discharged without effective treatment, they can clog sewers, contaminate soil and water, and even violate environmental regulations. Therefore, the car wash industry urgently needs efficient and reliable wastewater treatment equipment.

[0003] Disadvantages of traditional car wash wastewater treatment methods:

[0004] First, existing sedimentation tanks are mostly concrete or fixed structures, which require long construction cycles and high costs. They are also unsuitable for mobile car washes (such as construction site car washes and mobile car wash services). This design lacks flexibility and cannot be quickly assembled and disassembled, making it difficult to deploy at temporary car wash locations or during site changes. Furthermore, most sedimentation tanks use a single-stage treatment process, resulting in low sedimentation efficiency. This prevents the adequate removal of fine suspended matter and grease from the wastewater, resulting in substandard effluent quality that cannot meet reuse or discharge standards.

[0005] Second, traditional systems rely on manual cleaning of filters and sediment. Filters (such as primary filters) are easily clogged by suspended matter, requiring frequent downtime for cleaning, which can affect water flow and sedimentation efficiency. Manual scraping and sludge removal is time-consuming and labor-intensive, and incomplete cleaning results in sludge accumulation at the bottom of the tank, breeding bacteria and producing odor.

[0006] In view of this, the present invention proposes a modular, detachable, mobile car washing machine multi-stage sedimentation tank device. Summary of the Invention

[0007] The present invention proposes a modular detachable mobile car washing machine multi-stage sedimentation tank device, which solves the problem that grease cannot be effectively removed in the prior art car washing wastewater treatment.

[0008] The top of the water filter is fixedly connected to the filter screen, and the top surface of the filter screen is provided with a cleaning member for cleaning the filter screen. The cleaning member is fixedly connected to the first and second filter screens of the filter screen. The cleaning member is provided with a cleaning member for cleaning the filter screen. The cleaning member is fixedly connected to the first and second filter screens of the filter screen. The cleaning member is fixedly connected to the first and second filter screens of the filter screen.

[0009] Preferably, the cleaning component includes a screw rod rotatably connected to the top inner side of the first sedimentation tank, a forward and reverse motor is fixedly installed on the outer side of the first sedimentation tank, the output shaft of the forward and reverse motor is fixedly connected to the screw rod, a slider is threadedly connected to the screw rod, a scraper is fixedly connected to the bottom of the slider, and the scraper is slidably connected to the top wall of the filter screen.

[0010] Preferably, the scraper assembly includes a sliding rod passing through the side wall of the first sedimentation tank, the sliding rod is slidably connected to the side wall of the first sedimentation tank, one end of the sliding rod is fixedly connected to a scraper plate, the scraper plate is slidably connected to the bottom wall inside the first sedimentation tank, and the other end of the sliding rod is fixedly connected to a connecting seat.

[0011] Preferably, the scraper assembly also includes a guide rod slidably connected to the bottom of the first sedimentation tank, one end of the guide rod is fixedly connected to the connecting seat, an electric push rod is fixedly connected to the bottom of the first sedimentation tank, the output end of the electric push rod is fixedly connected to the connecting seat, and the other end of the guide rod is provided with a linkage part that drives the mud guard to disengage or engage with the mud bucket by cooperating with the sliding of the guide rod.

[0012] Preferably, the linkage includes a screw rotatably connected to the bottom of the mud guard, the screw passes through the bottom wall of the mud bucket and is threadedly connected to the bottom wall of the mud bucket, the bottom end of the screw is fixedly connected to the first gear, and the end of the guide rod is fixedly connected to the gear seat engaged with the first gear, and the first gear can slide vertically along the gear seat.

[0013] Preferably, the secondary sedimentation mechanism includes a second sedimentation tank fixedly connected to the inner side of the second frame, one side of the second sedimentation tank is connected to the first liquid guide pipe, the other side of the second sedimentation tank is fixedly connected to the second liquid guide pipe connected to the water purifier, the bottom of the second sedimentation tank is fixedly connected to the mud discharge pipe, and the top end of the inner side of the second sedimentation tank is provided with an oil removal component for removing grease on the surface of the wastewater in the second sedimentation tank by rotating with the screw.

[0014] Preferably, the first liquid guiding pipe and the second liquid guiding pipe are both fixedly connected to a control valve, and the outlet end of the mud discharge pipe is externally connected to a sludge pump.

[0015] Preferably, the oil removal assembly includes two fixed seats fixedly connected to the two ends of the top of the second sedimentation tank, a fixed rod fixedly connected between the two fixed seats, a movable seat slidably connected to the fixed rod, an oil scraper hopper fixedly connected to the bottom of the movable seat, a plurality of oil filter holes distributed in an array are provided on the bottom wall of the oil scraper hopper, oil-absorbing cotton is fixedly connected to the inner side of the oil scraper hopper, and a transmission member is provided on the top of the movable seat for driving the movable seat to slide along the fixed rod by cooperating with the rotation of the screw rod.

[0016] Preferably, the transmission member includes a toothed plate fixedly connected to the top of the movable seat, the top of the second sedimentation tank is rotatably connected to a rotating shaft, one end of the rotating shaft is fixedly connected to a second gear, and the second gear is engaged with the toothed plate.

[0017] Preferably, the transmission member further includes a first pulley fixedly connected to the other end of the rotating shaft, one end of the screw rod is fixedly connected to a second pulley, and the second pulley is connected to the first pulley through a belt transmission.

[0018] The working principle and beneficial effects of the present invention are:

[0019] 1. The base is equipped with wheels, and the first and second frames are removably connected by bolts. This modular design allows the unit to be quickly transported to various car wash locations (such as construction sites or temporary car washes), eliminating the need for fixed infrastructure and significantly reducing deployment time (traditional concrete sedimentation tanks require long construction periods and are immovable). The wheels facilitate overall transfer, meeting the needs of frequent site changes and improving the versatility and cost-effectiveness of the equipment.

[0020] 2. The primary and secondary sedimentation mechanisms are designed in series. The primary sedimentation tank uses a filter screen and deflector to filter large suspended solids and promote sedimentation. The secondary sedimentation tank further precipitates fine particles. The final water purifier treats dissolved impurities. This multi-stage design ensures efficient removal of silt, suspended solids, and pollutants from the wastewater. The effluent is reusable through the outlet pipe, achieving water resource recovery. The deflector evenly distributes water, slows the flow rate, and enhances the sedimentation effect.

[0021] 3. The cleaning part drives the screw to rotate through the forward and reverse motor, so that the slider drives the scraper to periodically reciprocate to clean the impurities on the surface of the filter to avoid blockage; through the activation of the cleaning part, the scraper bucket and oil absorbent cotton automatically remove the grease on the surface of the wastewater, and the oil filter holes and oil absorbent cotton absorb the grease to avoid secondary pollution.

[0022] 4. The scraper assembly uses an electric push rod to push the scraper to concentrate the sediment into the mud discharge bucket; the linkage synchronously drives the mud guard to open, realizing one-button discharge of sediment and reducing manual labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Figure 1 This is a schematic diagram of the structure of a modular detachable mobile car washing machine multi-stage sedimentation tank device of the present invention Figure 1 ;

[0025] Figure 2 This is a schematic diagram of the structure of a modular detachable mobile car washing machine multi-stage sedimentation tank device of the present invention Figure 2 ;

[0026] Figure 3 It is a structural schematic diagram of the first-level precipitation mechanism of the present invention;

[0027] Figure 4 It is a structural schematic diagram of the cleaning piece of the present invention;

[0028] Figure 5 It is a structural schematic diagram of the mud scraping assembly of the present invention;

[0029] Figure 6 It is a structural schematic diagram of the linkage member of the present invention;

[0030] Figure 7 It is a structural schematic diagram of the secondary precipitation mechanism of the present invention;

[0031] Figure 8 It is a structural schematic diagram of the oil removal component of the present invention;

[0032] Figure 9 It is a structural schematic diagram of the transmission part of the present invention.

[0033] In the figure: 1. First frame; 2. Second frame; 3. Primary sedimentation mechanism; 31. First sedimentation tank; 32. Filter screen; 33. Guide plate; 34. Cleaning element; 341. Screw; 342. Forward and reverse motor; 343. Slider; 344. Scraper; 35. First liquid guide tube; 36. Mud discharge bucket; 37. Mud scraping assembly; 371. Slider; 372. Scraper; 373. Connecting seat; 374. Electric push rod; 375. Guide rod; 376. Linkage element; 3761. Screw; 3762. First gear; 3763 , gear seat; 38, mud guard; 4, secondary sedimentation mechanism; 41, second sedimentation tank; 42, mud discharge pipe; 43, second liquid guide pipe; 44, oil removal assembly; 441, fixed seat; 442, fixed rod; 443, movable seat; 444, oil scraper; 445, oil filter hole; 446, oil-absorbing cotton; 447, transmission part; 4471, gear plate; 4472, rotating shaft; 4473, second gear; 4474, first pulley; 4475, second pulley; 5, water purifier; 6, water outlet pipe; 10, base; 20, walking wheel. DETAILED DESCRIPTION

[0034] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0035] like Figures 1 to 9 As shown, this embodiment proposes a modular detachable mobile car washing machine multi-stage sedimentation tank device, including a base 10, and the four corners of the bottom of the base 10 are rotatably connected to the running wheels 20. The running wheels 20 facilitate the transfer and transportation of the entire equipment, meet the needs of changing different car washing points, and have high flexibility;

[0036] The two ends of the base 10 are respectively fixedly connected to the first frame 1 and the second frame 2 by bolts. A first-level sedimentation mechanism 3 is provided on the inner side of the first frame 1. The first-level sedimentation mechanism 3 includes a first sedimentation tank 31 bolted to the inner side of the first frame 1, and the top of the inner side of the first sedimentation tank 31 is fixedly connected to the filter screen 32. The top surface of the filter screen 32 is provided with a cleaning member 34 for cleaning the filter screen 32. The inner side of the first-level sedimentation mechanism 3 is fixedly connected to an inclined guide plate 33, one end of the top of the first sedimentation tank 31 is fixedly connected to a first liquid guide pipe 35, one end of the bottom of the first sedimentation tank 31 is fixedly connected to a mud discharge bucket 36, and the inner side of the mud discharge bucket 36 is slidably connected to a mud guard 38. The bottom end of the inner side of the first sedimentation tank 31 is provided with a mud scraper assembly 37 for cleaning the sediment, and the inner side of the second frame 2 is provided with a secondary sedimentation mechanism 4 connected to the first liquid guide pipe 35. The outlet end of the secondary sedimentation mechanism 4 is connected to a water purifier 5, and the outlet end of the water purifier 5 is fixedly connected to a water outlet pipe 6.

[0037] By directing car wash wastewater into the first sedimentation tank 31, the filter 32 filters the floating objects in the wastewater, and then the wastewater accumulates in the first sedimentation tank 31 for sedimentation. The guide plate 33 can evenly distribute the water, slow down the flow rate, and promote sedimentation. After the sedimentation is completed, the scraper assembly 37 removes the sediment at the bottom of the first sedimentation tank 31 and discharges it through the mud hopper 36, thereby achieving automatic sediment cleaning and effectively improving the sediment cleaning efficiency.

[0038] The supernatant in the first sedimentation tank 31 can be introduced into the secondary sedimentation mechanism 4 through the first liquid guide pipe 35 for secondary sedimentation to completely precipitate the silt in the wastewater, and then the soluble impurities in the wastewater are cleaned through the water purifier 5, thereby realizing the treatment and recycling of the wastewater and effectively saving water resources.

[0039] Furthermore, the cleaning part 34 includes a screw rod 341 rotatably connected to the top inner side of the first sedimentation tank 31, a forward and reverse motor 342 is fixedly installed on the outer side of the first sedimentation tank 31, the output shaft of the forward and reverse motor 342 is fixedly connected to the screw rod 341, a slider 343 is threadedly connected to the screw rod 341, and a scraper 344 is fixedly connected to the bottom of the slider 343, and the scraper 344 is slidably connected to the top wall of the filter screen 32.

[0040] By starting the forward and reverse motor 342 to drive the screw rod 341 to rotate back and forth periodically, the slider 343 moves back and forth along the axis of the screw rod 341, and the scraper 344 slides back and forth along the top wall of the filter screen 32. This allows the scraper 344 to clean the impurities attached to the surface of the filter screen 32, avoiding the problem of the filter holes of the filter screen 32 being blocked by impurities.

[0041] Furthermore, the scraper assembly 37 includes a slide rod 371 that passes through the side wall of the first sedimentation tank 31, the slide rod 371 is slidably connected to the side wall of the first sedimentation tank 31, one end of the slide rod 371 is fixedly connected to a scraper plate 372, the scraper plate 372 is slidably connected to the bottom wall of the inner side of the first sedimentation tank 31, the other end of the slide rod 371 is fixedly connected to a connecting seat 373, the bottom of the first sedimentation tank 31 is fixedly connected to an electric push rod 374, the output end of the electric push rod 374 is fixedly connected to the connecting seat 373, the bottom of the first sedimentation tank 31 is slidably connected to a guide rod 375, one end of the guide rod 375 is fixedly connected to the connecting seat 37 The other end of the guide rod 375 is provided with a linkage member 376 that drives the mud guard 38 to disengage or engage with the mud discharge bucket 36 by cooperating with the sliding of the guide rod 375. The linkage member 376 includes a screw rod 3761 rotatably connected to the bottom of the mud guard 38. The screw rod 3761 passes through the bottom wall of the mud discharge bucket 36 and is threadedly connected to the bottom wall of the mud discharge bucket 36. The bottom end of the screw rod 3761 is fixedly connected to a first gear 3762. The end of the guide rod 375 is fixedly connected to a gear seat 3763 that meshes with the first gear 3762. The first gear 3762 can slide vertically along the gear seat 3763.

[0042] After sedimentation is completed, the connecting seat 373 is driven to move horizontally by controlling the electric push rod 374, so that the sliding rod 371 drives the scraper 372 to slide along the bottom wall inside the first sedimentation tank 31, so that the scraper 372 scrapes the sediment at the bottom of the first sedimentation tank 31 and pushes the sediment to the mud discharge bucket 36. When the scraper 372 approaches the mud discharge bucket 36, the guide rod 375 moves synchronously with the connecting seat 373, so that the gear seat 3763 moves and drives the first gear 3762 to rotate, so that the screw 3761 rotates. Since the screw 3761 is threadedly connected to the bottom wall of the mud discharge bucket 36, the screw 3761 and the mud discharge bucket 36 move relative to each other, so that the screw 3761 can drive the mud guard 38 to move upward and disengage from the mud discharge bucket 36, so that the sediment can be discharged from the mud discharge bucket 36, thereby realizing automatic scraping and cleaning of the sediment, greatly reducing the workload of manual cleaning.

[0043] Furthermore, the secondary sedimentation mechanism 4 includes a second sedimentation tank 41 bolted to the inner side of the second frame 2, one side of the second sedimentation tank 41 is connected to the first liquid guide pipe 35, and the other side of the second sedimentation tank 41 is fixedly connected to the second liquid guide pipe 43 connected to the water purifier 5, and the bottom of the second sedimentation tank 41 is fixedly connected to the mud discharge pipe 42, and the top of the inner side of the second sedimentation tank 41 is provided with an oil removal component 44 for removing grease on the surface of the wastewater in the second sedimentation tank 41 by rotating with the screw 341. The first liquid guide pipe 35 and the second liquid guide pipe 43 are both fixedly connected to the control valve, and the outlet end of the mud discharge pipe 42 is externally connected to the sludge pump.

[0044] By opening the control valve of the first liquid conduit 35, the supernatant in the first sedimentation tank 31 is introduced into the second sedimentation tank 41 through the first liquid conduit 35 for secondary sedimentation. After the sedimentation is completed, the grease on the surface of the wastewater in the second sedimentation tank 41 is removed by the oil removal component 44, thereby improving the treatment effect of the wastewater. Then, the sludge pump is used to discharge the sediment at the bottom of the second sedimentation tank 41 through the sludge discharge pipe 42. Then, the control valve of the second liquid conduit 43 is opened so that the second liquid conduit 43 guides the supernatant in the second sedimentation tank 41 into the water purifier 5 to clean the soluble impurities in the wastewater, thereby realizing the treatment and recycling of the wastewater, effectively saving water resources.

[0045] Furthermore, the oil removal assembly 44 includes two fixed seats 441 fixedly connected to the two ends of the top of the second sedimentation tank 41, a fixed rod 442 is fixedly connected between the two fixed seats 441, a movable seat 443 is slidably connected to the fixed rod 442, and an oil scraping bucket 444 is fixedly connected to the bottom of the movable seat 443. The bottom wall of the oil scraping bucket 444 is provided with a plurality of oil filter holes 445 distributed in an array, and the inner side of the oil scraping bucket 444 is fixedly connected with oil absorbing cotton 446, and the material of the oil absorbing cotton 446 is polyester fiber; the top of the movable seat 443 is provided with a screw rod 341 to drive the oil scraping bucket 444. The transmission member 447 enables the movable seat 443 to slide along the fixed rod 442. The transmission member 447 includes a tooth plate 4471 fixedly connected to the top of the movable seat 443. The top of the second sedimentation tank 41 is rotatably connected to a rotating shaft 4472. One end of the rotating shaft 4472 is fixedly connected to a second gear 4473. The second gear 4473 is engaged with the tooth plate 4471. The other end of the rotating shaft 4472 is fixedly connected to a first pulley 4474. One end of the screw rod 341 is fixedly connected to a second pulley 4475. The second pulley 4475 is connected to the first pulley 4474 through a belt drive.

[0046] By starting the forward and reverse motor 342 to drive the screw rod 341 to rotate back and forth periodically, the second pulley 4475 rotates back and forth, and the first pulley 4474 rotates back and forth synchronously, which causes the rotating shaft 4472 to rotate, causing the second gear 4473 to rotate back and forth periodically, and the tooth plate 4471 drives the movable seat 443 to slide back and forth along the fixed rod 442, so that the oil scraper 444 can reciprocate on the surface of the wastewater, and the grease on the surface of the wastewater is filtered out through the oil filter hole 445. At the same time, the oil-absorbing cotton 446 absorbs the grease to prevent the grease from re-mixing into the wastewater and causing secondary pollution, thereby effectively improving the grease removal effect of the wastewater.

[0047] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A modular detachable mobile car washing machine multi-stage sedimentation tank device, comprising a base (10), wherein both ends of the base (10) are fixedly connected to a first frame (1) and a second frame (2), respectively, and characterized in that: A first-level sedimentation mechanism (3) is provided on the inner side of the first frame (1), and the first-level sedimentation mechanism (3) includes a first sedimentation tank (31) fixedly connected to the inner side of the first frame (1), a filter screen (32) is fixedly connected to the top of the inner side of the first sedimentation tank (31), and a cleaning member (34) for cleaning the filter screen (32) is provided on the top surface of the filter screen (32), and an inclined guide plate (33) is fixedly connected to the inner side of the first-level sedimentation mechanism (3), and one end of the top of the first sedimentation tank (31) is fixedly connected to the first guide plate (33). A liquid pipe (35) is provided, one end of the bottom of the first sedimentation tank (31) is fixedly connected to a mud discharge bucket (36), the inner side of the mud discharge bucket (36) is slidably connected to a mud guard (38), the bottom end of the inner side of the first sedimentation tank (31) is provided with a mud scraping assembly (37) for cleaning sediment, the inner side of the second frame (2) is provided with a secondary sedimentation mechanism (4) connected to the first liquid guide pipe (35), the outlet end of the secondary sedimentation mechanism (4) is connected to a water purifier (5), and the outlet end of the water purifier (5) is fixedly connected to a water outlet pipe (6).

2. A modular detachable mobile car washing machine multi-stage sedimentation tank device according to claim 1, characterized in that: The cleaning member (34) includes a screw rod (341) rotatably connected to the top end of the inner side of the first sedimentation tank (31); a forward and reverse motor (342) is fixedly installed on the outer side of the first sedimentation tank (31); the output shaft of the forward and reverse motor (342) is fixedly connected to the screw rod (341); a slider (343) is threadedly connected to the screw rod (341); a scraper (344) is fixedly connected to the bottom of the slider (343); and the scraper (344) is slidably connected to the top wall of the filter screen (32).

3. A modular detachable mobile car washing machine multi-stage sedimentation tank device according to claim 1, characterized in that: The scraper assembly (37) includes a slide rod (371) that passes through the side wall of the first sedimentation tank (31), the slide rod (371) is slidably connected to the side wall of the first sedimentation tank (31), one end of the slide rod (371) is fixedly connected to a scraper plate (372), the scraper plate (372) is slidably connected to the bottom wall inside the first sedimentation tank (31), and the other end of the slide rod (371) is fixedly connected to a connecting seat (373).

4. A modular detachable mobile car washing machine multi-stage sedimentation tank device according to claim 3, characterized in that: The scraper assembly (37) further comprises a guide rod (375) slidably connected to the bottom of the first sedimentation tank (31), one end of the guide rod (375) being fixedly connected to the connecting seat (373), an electric push rod (374) being fixedly connected to the bottom of the first sedimentation tank (31), an output end of the electric push rod (374) being fixedly connected to the connecting seat (373), and a linkage member (376) is provided at the other end of the guide rod (375) for driving the mud guard (38) to disengage or engage with the mud bucket (36) by sliding in conjunction with the guide rod (375).

5. A modular detachable mobile car washing machine multi-stage sedimentation tank device according to claim 4, characterized in that: The linkage member (376) includes a screw (3761) rotatably connected to the bottom of the mud guard (38), the screw (3761) passes through the bottom wall of the mud discharge bucket (36) and is threadedly connected to the bottom wall of the mud discharge bucket (36), the bottom end of the screw (3761) is fixedly connected to a first gear (3762), the end of the guide rod (375) is fixedly connected to a gear seat (3763) engaged with the first gear (3762), and the first gear (3762) can slide vertically along the gear seat (3763).

6. The modular detachable mobile car washing machine multi-stage sedimentation tank device according to claim 2, characterized in that: The secondary sedimentation mechanism (4) comprises a second sedimentation tank (41) fixedly connected to the inner side of the second frame (2); one side of the second sedimentation tank (41) is connected to the first liquid guide pipe (35); the other side of the second sedimentation tank (41) is fixedly connected to a second liquid guide pipe (43) connected to the water purifier (5); the bottom of the second sedimentation tank (41) is fixedly connected to a mud discharge pipe (42); and the top end of the inner side of the second sedimentation tank (41) is provided with an oil removal component (44) for removing grease on the surface of the wastewater in the second sedimentation tank (41) by rotating in conjunction with a screw rod (341).

7. A modular detachable mobile car washing machine multi-stage sedimentation tank device according to claim 6, characterized in that: The first liquid guiding pipe (35) and the second liquid guiding pipe (43) are both fixedly connected to a control valve, and the outlet end of the mud discharge pipe (42) is externally connected to a sludge pump.

8. The modular detachable mobile car washing machine multi-stage sedimentation tank device according to claim 6, characterized in that: The oil removal assembly (44) includes two fixed seats (441) fixedly connected to the two ends of the top of the second sedimentation tank (41), a fixed rod (442) fixedly connected between the two fixed seats (441), a movable seat (443) slidably connected to the fixed rod (442), an oil scraper (444) fixedly connected to the bottom of the movable seat (443), a plurality of oil filter holes (445) distributed in an array are provided on the bottom wall of the oil scraper (444), an oil-absorbing cotton (446) is fixedly connected to the inner side of the oil scraper (444), and a transmission member (447) is provided on the top of the movable seat (443) for driving the movable seat (443) to slide along the fixed rod (442) by rotating in conjunction with the screw rod (341).

9. A modular detachable mobile car washing machine multi-stage sedimentation tank device according to claim 8, characterized in that: The transmission member (447) includes a tooth plate (4471) fixedly connected to the top of the movable seat (443); the top of the second sedimentation tank (41) is rotatably connected to a rotating shaft (4472); one end of the rotating shaft (4472) is fixedly connected to a second gear (4473); and the second gear (4473) is meshed with the tooth plate (4471).

10. A modular detachable mobile car washing machine multi-stage sedimentation tank device according to claim 9, characterized in that: The transmission member (447) also includes a first pulley (4474) fixedly connected to the other end of the rotating shaft (4472), and one end of the screw rod (341) is fixedly connected to a second pulley (4475), and the second pulley (4475) is connected to the first pulley (4474) through a belt transmission.

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