Environment-friendly sewage suction truck with filtering function

Abstract

The utility model belongs to the technical field of environmental protection, and particularly relates to an environment-friendly sewage suction truck with a filtering function, which comprises a truck body and a sewage tank. The sewage suction pump, the lump filtering mechanism and the sludge filtering mechanism are all arranged at the top of the sewage tank and are communicated through the liquid conveying mechanism; the sewage suction pump is communicated with the lump filtering mechanism; the sludge filtering mechanism comprises a rotary driving assembly, a supporting frame, a second filtering barrel, filtering net cloth, a linear driving assembly and a material receiving assembly; the driving end of the rotary driving assembly is connected with the supporting frame, the filter screen cloth is detachably connected into the second filter barrel, the driving end of the linear driving assembly is connected with the bottom of the filter screen cloth, and the material receiving assembly is located above the filter screen cloth; the lump filtering mechanism conveys sewage into the second filtering barrel through a liquid conveying mechanism, an output port of the second filtering barrel is detachably connected with a blow-off pipe, and an output port of the blow-off pipe is communicated with the sewage tank; according to the scheme, the sewage filtering effect is better.

Description

Technical Field

[0001] The utility model belongs to the technical field of environmental protection, and in particular relates to an environmentally friendly sewage suction vehicle with a filtering function. Background Art

[0002] Environmentally friendly sewage suction trucks are generally used as special vehicles for cleaning work in septic tanks, sewage ditches, river sludge treatment and other environments. However, traditional environmentally friendly sewage suction trucks mostly suck sewage into the sewage suction tank and then transport it to a designated location for treatment. However, the sewage contains mud, silt, gravel, brick fragments and other debris.

[0003] In the prior art, sewage suction trucks generally do not perform dry-wet separation of the wastewater and debris they suck up, which causes the sewage suction truck to discharge the wastewater and debris together during discharge, and further treatment is required after discharge, otherwise it will cause re-accumulation of pollution, which is not conducive to energy conservation and environmental protection, and limits the practicality of sewage suction trucks. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides an environmentally friendly sewage suction truck with a filtering function, so as to solve the problem that the existing sewage suction trucks generally do not perform dry-wet separation on the wastewater and debris sucked in, which will cause the sewage suction truck to discharge the wastewater and debris together when discharging, and need to be processed again after discharge, otherwise it will cause accumulation of pollution again, which is not conducive to energy saving and environmental protection, and limits the practicality of the sewage suction truck.

[0005] The technical solution adopted by the utility model is as follows: an environmentally friendly sewage suction vehicle with filtering function, comprising a vehicle body, a sewage tank is arranged on the top of the vehicle body;

[0006] A sewage suction pump, wherein the sewage suction pump is arranged on the outer side wall of the sewage tank;

[0007] A block filtering mechanism and a sludge filtering mechanism, wherein the block filtering mechanism and the sludge filtering mechanism are both arranged on the top of the sewage tank, and an infusion mechanism is connected between the block filtering mechanism and the sludge filtering mechanism;

[0008] The suction pipe of the sewage suction pump is used to extend into the environment to be sucked to suck sewage, the output pipe of the sewage suction pump is connected to the input port of the block filtering mechanism, and the block filtering mechanism is used to filter the blocks in the sewage;

[0009] The sludge filtering mechanism comprises a rotating drive assembly, a support frame, a second filter barrel, a filter cloth, a linear drive assembly, and a material receiving assembly;

[0010] The rotary drive assembly is arranged on the top of the sewage tank, the driving end of the rotary drive assembly is connected to the bottom of the support frame, the second filter barrel is arranged on the top of the support frame, the upper end of the second filter barrel is open, the filter cloth is detachably connected in the second filter barrel for filtering sludge, the linear drive assembly is installed on the support frame and is located below the second filter barrel, the driving end of the linear drive assembly penetrates the bottom of the second filter barrel upward and is connected to the bottom of the filter cloth, and can drive the filter cloth to move back and forth vertically, the material receiving assembly is arranged just above the filter cloth, and the filter cloth can extend into the material receiving assembly;

[0011] The output port of the block filter mechanism transports sewage to the second filter barrel through the infusion mechanism, and the output port of the second filter barrel is detachably connected to a sewage pipe, and the output port of the sewage pipe is connected to the sewage tank.

[0012] Further, the block filtering mechanism comprises a mounting frame, a first filtering barrel and a filtering screen cylinder;

[0013] The mounting frame is arranged on the top of the sewage tank, the first filter barrel is arranged on the top of the mounting frame, the upper end of the first filter barrel is open and hinged with a cover body, the output pipe of the sewage suction pump is connected to the input port at the upper end of the cover body, and the filter screen cylinder is detachably connected in the first filter barrel.

[0014] Furthermore, the infusion mechanism includes an infusion pump, an infusion hose, an infusion hard tube, a limit frame, a fixing ring and an electric push rod;

[0015] The infusion pump is fixedly mounted on the top of the mounting frame, the limiting frame is fixedly arranged on the top of the mounting frame, the input port of the infusion pump is connected with the first filter barrel, the output port of the infusion pump is connected with the input port of the infusion hose, the output port of the infusion hose is connected with the input port of the infusion tube, the output port of the infusion tube passes through the limiting frame and extends above the second filter barrel, the infusion tube is horizontally slidably sleeved on the limiting frame and the output port of the infusion tube is located between the material receiving assembly and the second filter barrel, the electric push rod is located at the top of the mounting frame, the driving end of the electric push rod is connected to the outer side wall of the fixing ring, and the fixing ring is fixedly sleeved on the infusion tube.

[0016] Further, the rotation drive assembly includes an L-shaped plate, a motor, a driving gear and a driven gear;

[0017] The L-shaped plate is fixedly connected to the top of the sewage tank, the motor is installed on the L-shaped plate, the driving gear and the driven gear are both rotatably installed on the top of the sewage tank, the driving end of the motor passes through the L-shaped plate vertically downward and is connected to the driving gear, the driving gear and the driven gear are meshed, and the bottom of the support frame is installed on the top of the driven gear.

[0018] Furthermore, the linear drive assembly includes a support plate, a cylinder and a fixed block. The support plate is fixedly connected to the inner wall of the support frame, and the cylinder is vertically installed on the upper surface of the support plate. The drive rod of the cylinder vertically penetrates the bottom of the second filter barrel upward and is connected to the bottom of the fixed block. The bottom center of the filter cloth is inserted into the fixed block.

[0019] Furthermore, the material receiving assembly includes a stand, a slide, a material receiving tank and a slide block;

[0020] The stand is fixedly arranged on the top of the sewage tank and located on one side of the rotating drive assembly. A slide groove is horizontally opened on the top of the stand. Two sliders are fixedly connected to the top of the material receiving tank. The sliders are T-shaped sliders. The upper parts of the sliders can be slidably fitted in the slide groove, so that the material receiving tank can be slidably hung on the stand;

[0021] The material receiving tank is a thin-walled tank body which is hollow as a whole. The upper and lower ends of the material receiving tank are both open, and the inner bottom wall of the material receiving tank is a material receiving portion.

[0022] Beneficial effects of the utility model:

[0023] The input port of the suction pipe is extended into the environment to be sucked, and then the sewage suction pump is started to generate negative pressure in the suction pipe to suck sewage. The mixture of sewage and debris is discharged into the block filtering mechanism through the sewage suction pump through the output pipe of the sewage suction pump to filter the blocks in the sewage. Then, the sewage filtered of the blocks is input into the filter cloth in the second filter barrel through the infusion mechanism. When the filter cloth filters the sludge in the sewage in the filter cloth, and the sewage filtered of the sludge is discharged into the sewage tank through the sewage discharge pipe, the linear drive component is started to drive the bottom of the filter cloth to move upward. Since the filter cloth is flexible During the upward movement of the bottom of the filter cloth, the inner wall of the filter cloth with sludge attached will gradually move outward until the filter cloth extends into the material receiving assembly. The inner wall of the filter cloth with sludge attached can be completely outward, which is convenient for unloading the sludge. Then the rotating drive assembly is started to drive the support frame to rotate, thereby driving the second filter barrel and the filter cloth on the support frame to rotate synchronously. The sludge attached to the filter cloth rotates under the action of the rotating drive assembly, so that the sludge on the filter cloth is centrifugally thrown away from the filter cloth, and the material receiving assembly collects the material, which is convenient for subsequent filtration and treatment of the sludge. Through the coordinated use of the block filtering mechanism and the sludge filtering mechanism, the blocks and sludge in the sewage can be filtered respectively, so that the dry and wet separation effect of the sewage is better, the separation is more thorough, energy-saving and environmentally friendly, and the accumulation of pollution is avoided again. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0025] Figure 2 It is a three-dimensional structural schematic diagram of the block filtering mechanism, sludge filtering mechanism and linear drive assembly of the utility model;

[0026] Figure 3 It is a cross-sectional view of the block filtering mechanism of the utility model;

[0027] Figure 4 It is a cross-sectional view of the sludge filtering mechanism of the utility model;

[0028] The attached drawings are marked as follows:

[0029] Vehicle body 1, sewage tank 2, sewage suction pump 3, suction pipe 31, output pipe 32, block filtering mechanism 4, mounting frame 41, first filter barrel 42, filter mesh cylinder 43, cover body 44, sludge filtering mechanism 5, support frame 51, second filter barrel 52, filter mesh cloth 53, sewage pipe 54, rotation drive assembly 6, L-shaped plate 61, motor 62, driving gear 63, driven gear 64, linear drive assembly 7, support plate 71, cylinder 72, fixed block 73, material receiving assembly 8, stand 81, slide 82, material receiving tank 83, slider 84, infusion mechanism 9, infusion pump 91, infusion hose 92, infusion hard tube 93, limit frame 94, fixing ring 95, electric push rod 96. DETAILED DESCRIPTION

[0030] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0031] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Embodiment 1:

[0034] like Figure 1 to Figure 4 As shown, an environmentally friendly sewage suction vehicle with filtering function comprises a vehicle body 1, and a sewage tank 2 is provided on the top of the vehicle body 1;

[0035] A sewage suction pump 3, wherein the sewage suction pump 3 is arranged on the outer wall of the sewage tank 2, the input port of the sewage suction pump 3 is connected with a suction pipe 31, and the output port of the sewage suction pump 3 is connected with an output pipe 32;

[0036] A block filtering mechanism 4 and a sludge filtering mechanism 5, wherein the block filtering mechanism 4 and the sludge filtering mechanism 5 are both arranged on the top of the sewage tank 2, and an infusion mechanism 9 is connected between the block filtering mechanism 4 and the sludge filtering mechanism 5;

[0037] The suction pipe 31 of the sewage suction pump 3 is used to extend into the environment to be sucked to suck sewage, and the output pipe 32 of the sewage suction pump 3 is connected to the input port of the block filtering mechanism 4, and the block filtering mechanism 4 is used to filter the blocks in the sewage;

[0038] The sludge filtering mechanism 5 includes a rotating drive assembly 6, a support frame 51, a second filter barrel 52, a filter cloth 53, a linear drive assembly 7, and a material receiving assembly 8;

[0039] The rotary drive assembly 6 is arranged on the top of the sewage tank 2, and the driving end of the rotary drive assembly 6 is connected to the bottom of the support frame 51. The second filter barrel 52 is arranged on the top of the support frame 51, and the upper end of the second filter barrel 52 is open. The top of the filter cloth 53 is detachably connected to the second filter barrel 52 for filtering sludge. The linear drive assembly 7 is installed on the support frame 51 and is located below the second filter barrel 52. The driving end of the linear drive assembly 7 penetrates the bottom of the second filter barrel 52 upward and is connected to the bottom of the filter cloth 53, and can drive the filter cloth 53 to move back and forth vertically. The material receiving assembly 8 is arranged directly above the filter cloth 53, and the filter cloth 53 can extend into the material receiving assembly 8;

[0040] The output port of the block filtering mechanism 4 transports sewage to the second filter barrel 52 through the infusion mechanism 9 . The output port of the second filter barrel 52 is detachably connected to a sewage pipe 54 . The output port of the sewage pipe 54 is connected to the sewage tank 2 .

[0041] Specifically, the output port of the second filter barrel 52 is threadedly connected to the input port of the sewage pipe 54, thereby realizing a detachable connection between the second filter barrel 52 and the sewage pipe 54. When the sewage in the second filter barrel 52 is discharged into the sewage tank 2, it is necessary to start the rotating drive component 6, and the sewage pipe 54 is rotated to threadably remove the sewage pipe 54 from the second filter barrel 52, so as to facilitate starting the rotating drive component 6 to drive the support frame 51 and the second filter barrel 52 to rotate.

[0042] Specifically, three limit blocks are arranged in an array on the top of the second filter barrel 52, and an insertion groove is opened on the inner side wall of the limit block. A threaded hole is opened vertically on the limit block, and the threaded hole is connected to the insertion groove. A limit hole is opened on the top of the filter mesh cloth 53 corresponding to the threaded hole. When the top of the filter mesh cloth 53 extends into the insertion groove, the limit hole is aligned with the threaded hole, and a screw is threadedly connected in the threaded hole. The lower end of the screw passes through the limit hole, the insertion groove and the threaded hole in turn, and is threadedly connected in the threaded hole, so that the top of the filter mesh cloth 53 is limited in the insertion groove, so that the filter mesh cloth 53 can be detachably connected in the second filter barrel 52.

[0043] As a preferred solution, the block filtering mechanism 4 includes a mounting frame 41, a first filter barrel 42 and a filter screen cartridge 43; the mounting frame 41 is arranged on the top of the sewage tank 2, the first filter barrel 42 is arranged on the top of the mounting frame 41, the upper end of the first filter barrel 42 is open, and a cover body 44 is hingedly connected, the output pipe 32 of the sewage suction pump 3 is connected to the input port at the top of the cover body 44, and the filter screen cartridge 43 is detachably connected to the first filter barrel 42. Several mounting blocks are arranged on the inner wall of the first filter barrel 42, and a card slot is provided on the upper surface of the mounting block. The filter screen cartridge 43 is provided with card connection blocks corresponding to several of the mounting blocks, and the card connection blocks are card-connected with the card slot, so as to realize the detachable connection between the first filter barrel 42 and the filter screen cartridge 43, and the structure is simple and easy to realize, which is convenient for removing the block debris after the filtering is completed.

[0044] As a preferred embodiment, the infusion mechanism 9 includes an infusion pump 91, an infusion hose 92, an infusion tube 93, a limiting frame 94, a fixing ring 95 and an electric push rod 96; the infusion pump 91 is fixedly mounted on the top of the mounting frame 41, the limiting frame 94 is fixedly arranged on the top of the mounting frame 41, the input port of the infusion pump 91 is connected to the first filter barrel 42, the output port of the infusion pump 91 is connected to the input port of the infusion hose 92, the output port of the infusion hose 92 is connected to the input port of the infusion tube 93, the output port of the infusion tube 93 passes through the limiting frame 94 and extends above the second filter barrel 52, the infusion tube 93 is horizontally slidably sleeved on the limiting frame 94 and the output port of the infusion tube 93 is located between the material receiving assembly 8 and the second filter barrel 52, the electric push rod 96 is located at the top of the mounting frame 41, the driving end of the electric push rod 96 is connected to the outer side wall of the fixing ring 95, and the fixing ring 95 is fixedly sleeved on the infusion tube 93. By starting the infusion pump 91, the sewage after filtering the lumps in the first filter barrel 42 is input into the filter mesh 53 in the second filter barrel 52, and the sludge in the sewage is filtered, so that the sewage filtering effect is better. When the sewage is transported to the second filter barrel 52 through the infusion pump 91, the electric push rod 96 is started to drive the output port of the infusion hard tube 93 to move toward the second filter barrel 52 and extend above the second filter barrel 52 to transport the sewage into the filter mesh 53. After the sewage is transported, the electric push rod 96 is started again to drive the output port of the infusion hard tube 93 away from the second filter barrel 52, so as to facilitate the subsequent rotation drive component 6 to drive the second filter barrel 52 to rotate, thereby realizing the sludge unloading on the filter mesh 53.

[0045] As a preferred embodiment, the rotating drive assembly 6 includes an L-shaped plate 61, a motor 62, a driving gear 63 and a driven gear 64; the L-shaped plate 61 is fixedly connected to the top of the sewage tank 2, the motor 62 is installed on the L-shaped plate 61, the driving gear 63 and the driven gear 64 are both rotatably installed on the top of the sewage tank 2, the driving end of the motor 62 passes through the L-shaped plate 61 vertically downward and is connected to the driving gear 63, the driving gear 63 and the driven gear 64 are meshed, and the bottom of the support frame 51 is installed on the top of the driven gear 64. By starting the motor 62 to drive the driving gear 63 to rotate, the driving gear 63 drives the driven gear 64 to rotate, and the driven gear 64 drives the support frame 51 and the second filter barrel 52, the filter mesh 53, and the linear drive component 7 on the support frame 51 to rotate synchronously. When the filter mesh 53 filters the sludge in the sewage in the filter mesh 53, the linear drive component 7 is started to drive the bottom of the filter mesh 53 to move upward and extend into the material receiving component 8. At this time, the inner side of the filter mesh 53 faces outward, and the sludge attached to the filter mesh 53 rotates under the action of the rotating drive component 6, so that the sludge on the filter mesh 53 is centrifugally thrown away from the filter mesh 53, and is collected by the material receiving component 8, which is convenient for subsequent filtration and treatment of the sludge.

[0046] As a preferred solution, the linear drive assembly 7 includes a support plate 71, a cylinder 72 and a fixed block 73. The support plate 71 is fixedly connected to the inner side wall of the support frame 51. The cylinder 72 is vertically installed on the upper surface of the support plate 71. The drive rod of the cylinder 72 vertically penetrates the bottom of the second filter barrel 52 and is connected to the bottom of the fixed block 73. The bottom center of the filter mesh 53 is inserted into the fixed block 73. The fixed block 73 is driven by starting the cylinder 72 to drive the bottom of the filter mesh 53 to move upward. Since the filter mesh 53 is flexible, as the fixed block 73 drives the bottom of the filter mesh 53 to move upward, the inner side wall of the filter mesh 53 with sludge attached will gradually face outward until the filter mesh 53 extends into the material receiving assembly 8. The inner side wall of the filter mesh 53 with sludge attached can be completely outward, which is convenient for unloading the sludge. In this embodiment, the fixed block 73 can fix the filter mesh 53 on the fixed block 73 by waterproof adhesive bonding. The driving rod of the cylinder 72 and the bottom of the second filter barrel 52 are sealed. Specifically, a sealing ring is sleeved between the driving rod of the cylinder 72 and the bottom of the second filter barrel 52.

[0047] As a preferred embodiment, the material receiving assembly 8 includes a stand 81, a slide groove 82, a material receiving tank 83 and a slider 84; the stand 81 is fixedly arranged on the top of the sewage tank 2 and on one side of the rotating drive assembly 6, and a slide groove 82 is horizontally opened on the top of the stand 81. Two sliders 84 are fixedly connected to the top of the material receiving tank 83. The slider 84 is a T-shaped slider 84, and the upper part of the slider 84 can be slidably fitted in the slide groove 82, so that the material receiving tank 83 is slidably hung on the stand 81. When the material receiving tank 83 is slidably hung on the stand 81, the material receiving tank 83 is located directly above the filter mesh cloth 53, so that the filter mesh cloth 53 can extend into the material receiving tank 83; the material receiving tank 83 is an overall hollow thin-walled tank body, and the upper and lower ends of the material receiving tank 83 are both open, and the inner bottom wall of the material receiving tank 83 is the material receiving part. By sliding the T-shaped slider 84 into the slide groove 82, the receiving tank 83 is slidably hung on the stand 81 and is detachably connected, so that after the filter mesh 53 is unloaded, the receiving tank 83 can be removed to collect the sludge. Specifically, the receiving tank 83 is a hollow thin-walled tank body as a whole, and the overall shape is a "mushroom". The bottom of the receiving tank 83 protrudes downward to form a ring-shaped receiving portion, and the inner bottom wall of the receiving tank 83 is the receiving portion, which is used to receive the sludge thrown off by the filter mesh 53.

[0048] The working mode of the utility model is as follows:

[0049] When in use, the input port of the suction pipe 31 is extended into the environment to be sucked, and then the sewage suction pump 3 is started to generate negative pressure in the suction pipe 31 to suck sewage, and the mixture of sewage and debris is discharged into the filter screen cylinder 43 of the first filter barrel 42 through the sewage suction pump 3 through the output pipe 32 of the sewage suction pump 3 to filter out the lumps in the sewage, and the lumps in the sewage include stones and brick fragments, and then the sewage filtered of the lumps is input into the filter screen cloth 53 in the second filter barrel 52 through the infusion pump 91. When the sewage is transported into the second filter barrel 52 through the infusion pump 91, the electric push rod 96 is started to drive the output port of the infusion hard pipe 93 to move toward the second filter barrel 52 and extend above the second filter barrel 52, so as to transport sewage into the filter screen cloth 53;

[0050] After the filter cloth 53 filters the sludge in the sewage into the filter cloth 53, and discharges the sewage filtered with the sludge into the sewage tank 2 through the sewage discharge pipe 54, the electric push rod 96 is started again to drive the output port of the infusion hard tube 93 away from the second filter barrel 52, and then the cylinder 72 is started to drive the fixing block 73 to drive the bottom of the filter cloth 53 to move upward. Since the filter cloth 53 is flexible, as the fixing block 73 drives the bottom of the filter cloth 53 to move upward, the inner side wall of the filter cloth 53 with the sludge attached will gradually move outward until the filter cloth 53 extends into the receiving tank 83 and the filter cloth 53 is attached to the material. The inner wall with sludge can be completely outward, which is convenient for unloading sludge. The filter cloth 53 can also filter fine clay in the mud. Then the motor 62 is started to drive the driving gear 63 to rotate, and the driving gear 63 drives the driven gear 64 to rotate. The driven gear 64 drives the support frame 51 and the second filter barrel 52 and the filter cloth 53 on the support frame 51 to rotate synchronously. The sludge attached to the filter cloth 53 rotates under the action of the rotating drive component 6, so that the sludge on the filter cloth 53 is centrifugally thrown away from the filter cloth 53, and is collected by the receiving tank 83, which is convenient for subsequent filtration and treatment of sludge. Through the coordinated use of the block filtering mechanism 4 and the sludge filtering mechanism 5, the blocks and sludge in the sewage can be filtered respectively, so that the dry and wet separation effect of the sewage is better, the separation is more thorough, energy-saving and environmentally friendly, and the accumulation of pollution is avoided again.

[0051] The utility model is described in detail above. The description of the specific embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. An environmentally friendly sewage suction truck with filtering function, characterized in that: include A vehicle body (1), wherein a sewage tank (2) is provided on the top of the vehicle body (1); A sewage suction pump (3), wherein the sewage suction pump (3) is arranged on the outer side wall of the sewage tank (2); A block filtering mechanism (4) and a sludge filtering mechanism (5), wherein the block filtering mechanism (4) and the sludge filtering mechanism (5) are both arranged on the top of the sewage tank (2), and an infusion mechanism (9) is connected between the block filtering mechanism (4) and the sludge filtering mechanism (5); The suction pipe (31) of the sewage suction pump (3) is used to extend into the environment to be sucked to suck sewage, and the output pipe (32) of the sewage suction pump (3) is connected to the input port of the block filtering mechanism (4), and the block filtering mechanism (4) is used to filter the blocks in the sewage; The sludge filtering mechanism (5) comprises a rotating drive assembly (6), a support frame (51), a second filtering barrel (52), a filtering mesh cloth (53), a linear driving assembly (7), and a material receiving assembly (8); The rotary drive assembly (6) is arranged at the top of the sewage tank (2), and the driving end of the rotary drive assembly (6) is connected to the bottom of the support frame (51). The second filter barrel (52) is arranged at the top of the support frame (51), and the upper end of the second filter barrel (52) is open. The filter cloth (53) is detachably connected in the second filter barrel (52) for filtering sludge. The linear drive assembly (7) is mounted on the support frame (51) and is located below the second filter barrel (52). The driving end of the linear drive assembly (7) penetrates the bottom of the second filter barrel (52) upward and is connected to the bottom of the filter cloth (53), and can drive the filter cloth (53) to move back and forth vertically. The material receiving assembly (8) is arranged directly above the filter cloth (53), and the filter cloth (53) can extend into the material receiving assembly (8); The output port of the block filtering mechanism (4) conveys sewage into the second filtering barrel (52) through the infusion mechanism (9); the output port of the second filtering barrel (52) is detachably connected to a sewage discharge pipe (54); the output port of the sewage discharge pipe (54) is in communication with the sewage tank (2).

2. The environmentally friendly sewage suction truck with filtering function according to claim 1 is characterized by: The block filtering mechanism (4) comprises a mounting frame (41), a first filtering barrel (42) and a filtering mesh cylinder (43); The mounting frame (41) is arranged on the top of the sewage tank (2), the first filter barrel (42) is arranged on the top of the mounting frame (41), the upper end of the first filter barrel (42) is open and is hinged with a cover body (44), the output pipe (32) of the sewage suction pump (3) is connected to the input port at the upper end of the cover body (44), and the filter screen cylinder (43) is detachably connected in the first filter barrel (42).

3. The environmentally friendly sewage suction truck with filtering function according to claim 2 is characterized by: The infusion mechanism (9) comprises an infusion pump (91), an infusion hose (92), an infusion hard tube (93), a limiting frame (94), a fixing ring (95) and an electric push rod (96); The infusion pump (91) is fixedly mounted on the top of the mounting frame (41), the limiting frame (94) is fixedly arranged on the top of the mounting frame (41), the input port of the infusion pump (91) is connected to the first filter barrel (42), the output port of the infusion pump (91) is connected to the input port of the infusion hose (92), the output port of the infusion hose (92) is connected to the input port of the infusion hard tube (93), and the output port of the infusion hard tube (93) passes through the limiting frame (94). 4) and extends into the top of the second filter barrel (52), the infusion tube (93) is horizontally slidably sleeved on the limit frame (94) so ​​that the output port of the infusion tube (93) is located between the material receiving assembly (8) and the second filter barrel (52), the electric push rod (96) is located at the top of the mounting frame (41), the driving end of the electric push rod (96) is connected to the outer side wall of the fixing ring (95), and the fixing ring (95) is fixedly sleeved on the infusion tube (93).

4. The environmentally friendly sewage suction vehicle with filtering function according to claim 1 is characterized in that: The rotation driving assembly (6) comprises an L-shaped plate (61), a motor (62), a driving gear (63) and a driven gear (64); The L-shaped plate (61) is fixedly connected to the top of the sewage tank (2), the motor (62) is mounted on the L-shaped plate (61), the driving gear (63) and the driven gear (64) are both rotatably mounted on the top of the sewage tank (2), the driving end of the motor (62) passes through the L-shaped plate (61) vertically downward and is connected to the driving gear (63), the driving gear (63) and the driven gear (64) are meshed, and the bottom of the support frame (51) is mounted on the top of the driven gear (64).

5. The environmentally friendly sewage suction vehicle with filtering function according to claim 1 is characterized in that: The linear drive assembly (7) comprises a support plate (71), a cylinder (72) and a fixed block (73); the support plate (71) is fixedly connected to the inner wall of the support frame (51); the cylinder (72) is vertically mounted on the upper surface of the support plate (71); a drive rod of the cylinder (72) vertically penetrates the bottom of the second filter barrel (52) and is connected to the bottom of the fixed block (73); the bottom center of the filter cloth (53) is inserted into the fixed block (73).

6. The environmentally friendly sewage suction truck with filtering function according to claim 1 is characterized by: The material receiving assembly (8) comprises a stand (81), a slide chute (82), a material receiving tank (83) and a slide block (84); The stand (81) is fixedly arranged on the top of the sewage tank (2) and is located on one side of the rotating drive assembly (6); a slide groove (82) is horizontally opened on the top of the stand (81); two sliders (84) are fixedly connected to the top of the material receiving tank (83); the sliders (84) are T-shaped sliders (84); the upper part of the sliders (84) can be slidably fitted in the slide groove (82), so that the material receiving tank (83) is slidably hung on the stand (81); The material receiving tank (83) is an overall hollow thin-walled tank body, the upper and lower ends of the material receiving tank (83) are both open, and the inner bottom wall of the material receiving tank (83) is a material receiving portion.

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