CN217870901U

CN217870901U - Sanitation clearance engineering car

Info

Publication number: CN217870901U
Application number: CN202123012961.9U
Authority: CN
Inventors: 赵连富
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-02
Filing date: 2021-12-02
Publication date: 2022-11-22
Anticipated expiration: 2031-12-02

Abstract

The utility model provides a sanitation clearance engineering car relates to sanitation equipment field. Including automobile body, installation base, support arm and rotary mechanism, the installation pedestal mounting is on the body of automobile body, and the support arm passes through rotary mechanism to be connected with the installation base, is equipped with the arm of going into the well on the support arm, is equipped with on the arm of going into the well to be used for snatching the subassembly that snatchs of filth. This technical scheme provides a sanitation clearance engineering car can be when the filth of sanitation personnel clearance well, the clearance mode of swift is provided, avoid the solid-state waste of current cleaning equipment in the clearance filth, solid-state waste blocks up the pipeline, influence sewage treatment device's normal operating, snatch the solid-state filth that lies in the well through setting up the subassembly of snatching on the down-hole arm, when avoiding the later stage to extract the sewage in the well, the discarded object that carries in the sewage blocks the normal operation of extraction equipment, and its treatment rate that can accelerate sewage in the well.

Description

Sanitation clearance engineering car

Technical Field

The utility model relates to a sanitation equipment technical field particularly, relates to a sanitation clearance engineering car.

Background

Urban drainage pipelines discharge a large amount of sewage and garbage every day, the drainage pipelines are easy to silt up and block, urban drainage is not smooth, flood disasters are easy to cause, and loss is very serious. The dredging problem of drainage pipelines becomes a current troublesome problem in government departments. At present, the dredging and dredging work of urban drainage pipelines in China is generally in a backward state of manual operation, the labor intensity is high, and the efficiency is low; at clearance drainage pipe in-process, if adopt the robot to go mediation drainage pipe, will reduce adverse circumstances greatly and to workman's harm, but mainly use the motor drive robot to work among the prior art, waterproof explosion-proof requirement is high, and is with high costs, and the pipeline need ventilate in advance and sewage dams, and the operating efficiency is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sanitation clearance engineering car, it can snatch piling up abandonment solid-state thing in the well, has alleviateed the work degree of difficulty for the mediation clearance of well, has increased sanitation workman's work efficiency.

The embodiment of the utility model is realized like this:

the embodiment of the application provides a sanitation clearance machineshop car includes automobile body, installation base, support arm and rotary mechanism, and installation pedestal mounting is on the body of automobile body, and the support arm passes through rotary mechanism to be connected with the installation base, is equipped with the arm of going into the well on the support arm, is equipped with the subassembly that snatchs that is used for snatching the filth on the arm of going into the well.

The utility model discloses an in some embodiments, snatch the subassembly including bearing the base, bear and encircle on the base and be provided with a plurality of arms that snatch, bear and be equipped with first hydraulic cylinder on the base, all be equipped with the connecting rod of being connected with first hydraulic cylinder's output on a plurality of arms that snatch.

In some embodiments of the present invention, the side wall of the supporting arm is provided with a contracting component for controlling the lower well arm to store.

The utility model discloses an in some embodiments, shrink subassembly is including setting up the second hydraulic cylinder in the support arm, and the output and the arm of going into the well of second hydraulic cylinder are articulated, are equipped with third hydraulic cylinder on the lateral wall of support arm, and third hydraulic cylinder's output is articulated with the lateral wall of support arm.

The utility model discloses an in some embodiments, wear to be equipped with flexible arm in the arm of going into the well, be equipped with the fourth hydraulic cylinder of being connected with flexible arm in the arm of going into the well, bear the base and be connected with the free end of flexible arm.

In some embodiments of the present invention, a cleaning assembly is disposed on the sidewall of the bearing base.

In some embodiments of the present invention, the cleaning assembly includes a plurality of nozzles surrounding the outer circumferential wall of the bearing base, and the nozzles are communicated with the external water pump.

The utility model discloses an in some embodiments, it is used for the clearance subassembly of the clearance wall of a well to install on the bearing base.

The utility model discloses an in some embodiments, the clearance subassembly includes that a plurality of encircles set up in bearing the clearance portion on the outer periphery wall of base, bears and encircles on the base and be provided with the drive ring, has all seted up the spacing groove along its extending direction on the lateral wall of a plurality of clearance portions, is equipped with a plurality of stoppers with the spacing groove adaptation on the drive ring, bears to be equipped with on the base with drive ring articulated fifth hydraulic cylinder.

In some embodiments of the present invention, a scraper is disposed on the free end of the cleaning portion.

Compared with the prior art, the embodiment of the utility model has following advantage or beneficial effect at least:

the embodiment of the application provides a sanitation cleaning engineering car, including automobile body, installation base, support arm and rotary mechanism, installation pedestal mounting is on the body of automobile body, and the support arm passes through rotary mechanism to be connected with the installation base, is equipped with down the well arm on the support arm, is equipped with the subassembly that snatchs that is used for snatching the filth on the arm of going down the well. The sanitation cleaning engineering vehicle provided by the technical scheme can provide a quick cleaning mode when sanitation personnel clean dirt in a well, so that the problems that the existing cleaning equipment cleans solid waste in the dirt, the solid waste blocks a pipeline and influences the normal operation of sewage treatment equipment are avoided; according to the technical scheme, stable support can be provided for the operation of the equipment through the installation base, the support arm and the rotating mechanism, then the installation base is installed on the body of the vehicle body, an operation platform is provided for the operation of the device, the support arm is connected with the installation base through the rotating mechanism, the support arm is provided with the shaft descending arm, the shaft descending arm is provided with a grabbing component for grabbing dirt, and solid waste placed in a shaft can be grabbed through the structure, so that the phenomenon that the shaft is blocked due to the accumulation of the solid waste in the shaft and the sewage discharge is influenced is avoided; the actual operation flow of the technical scheme is as follows: after starting the automobile body to the suitable position that is close to the well earlier, rethread rotary mechanism is with the support arm and the rotatory certain angle of installation base, it is just right with the well to make the lower well arm that sets up on the support arm, be convenient for lower well arm and the subassembly that snatchs that sets up on the well wall down transfer to the well in, then extend in vertical direction through lower well arm, make lower well arm fall down to the well in, snatch the solid-state filth that lies in the well through the subassembly that snatchs that sets up on lower well arm immediately, when avoiding the later stage to extract the sewage in the well, the discarded object that carries in the sewage blocks the normal operation of extraction equipment, and its treatment rate that can accelerate sewage in the well.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic view of a partially enlarged structure of the present invention;

FIG. 3 is a schematic view of the combination of the grasping units of the present invention;

fig. 4 is a schematic view of the assembly of the cleaning assembly of the present invention.

Icon: 1. a vehicle body; 2. a storage box; 3. a rotation mechanism; 4. a support arm; 5. a third hydraulic cylinder; 6. a well descending arm; 7. a telescopic arm; 8. a gripper arm; 9. a load bearing base; 10. installing a base; 11. a second hydraulic cylinder; 12. a fourth hydraulic cylinder; 13. a connecting rod; 14. a first hydraulic cylinder; 15. a drive motor; 16. a drive ring; 17. a cleaning part; 18. a fifth hydraulic cylinder; 19. a squeegee; 20. a limiting groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, the description is only for convenience of description of the present invention and simplification, but the indication or suggestion that the device or element to be referred must have a specific position, be constructed and operated in a specific position, and therefore, the present invention should not be construed as being limited thereto.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present invention, "a plurality" means at least 2.

In the description of the embodiments of the present invention, it should be further noted that unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

Examples

Referring to fig. 1-4, fig. 1 is a schematic front view of the present invention; FIG. 2 is a schematic view of a partially enlarged structure of the present invention; fig. 3 is a schematic view of the combination of the grasping units of the present invention; fig. 4 is a schematic view of the assembly of the cleaning assembly of the present invention.

The embodiment of the application provides a sanitation cleaning engineering truck, including automobile body 1, installation base 10, support arm 4 and rotary mechanism 3, installation base 10 installs on the body of automobile body 1, and support arm 4 passes through rotary mechanism 3 to be connected with installation base 10, is equipped with well arm 6 down on the support arm 4, is equipped with the subassembly that snatchs that is used for snatching the filth on the well arm 6 down. The sanitation cleaning engineering vehicle provided by the technical scheme can provide a quick cleaning mode when sanitation personnel clean dirt in a shaft, so that the problems that the existing cleaning equipment cleans solid waste in the dirt, the solid waste blocks a pipeline and influences the normal operation of sewage treatment equipment are avoided, the device can shuttle in the main street and the small street of the street through the arranged vehicle body 1, the shaft in different streets is treated, and a solution is timely provided for sewage treatment in municipal engineering; according to the technical scheme, the installation base 10, the supporting arm 4 and the rotating mechanism 3 are arranged to provide stable support for operation of the device, then the installation base 10 is installed on the body of the vehicle body 1, an operation platform is provided for operation of the device, the supporting arm 4 is connected with the installation base 10 through the rotating mechanism 3, the supporting arm 4 is provided with the well descending arm 6, the well descending arm 6 is provided with a grabbing component for grabbing dirt, solid waste placed in a well can be grabbed through the structure, and the solid waste is prevented from being accumulated in the well to cause well blockage and influence on sewage discharge; the actual operation flow of the technical scheme is as follows: after the automobile body 1 is started to a proper position close to a well, the supporting arm 4 and the mounting base 10 are rotated by a certain angle through the rotating mechanism 3, the lower well arm 6 arranged on the supporting arm 4 is opposite to the well, the lower well arm 6 and the grabbing component arranged on the lower well wall are conveniently placed into the well, then the lower well arm 6 extends in the vertical direction, the lower well arm 6 falls into the well, solid dirt in the well is grabbed through the grabbing component arranged on the lower well arm 6, and when the sewage in the well is extracted in a later period, the waste carried in the sewage blocks normal operation of the extracting equipment, and the treating speed of the sewage in the well can be accelerated.

Further, the vehicle body 1 is also provided with a storage box 2 for storing solid wastes, so that the wastes which are grabbed are prevented from being stacked everywhere to influence the environmental sanitation around the street.

Furthermore, the supporting arm 4 is a telescopic arm, namely a force arm of the vehicle-mounted crane, and can be freely extended.

Further, a control room for controlling the operation of the lower well arm 6, the support arm 4 and the grasping assembly is provided at the roof of the vehicle body 1.

Further, the rotating mechanism 3 is composed of a turntable, a slewing bearing, a slewing mechanism and the like, the turntable is respectively connected with the mounting base 10 and the supporting arm 4, an outer race of the slewing bearing is connected with the turntable through a bolt, an inner race with teeth is connected with the underframe through a bolt, and a rolling body is arranged between the inner race and the outer race. The vertical load, horizontal load and overturning moment of the excavator working device acting on the rotary table are transmitted to the underframe through the outer race, the rolling bodies and the inner race of the slewing bearing. The shell of the slewing mechanism is fixed on the turntable, and a pinion is meshed with a gear ring on the inner race of the slewing bearing. The pinion can rotate around the axis of the pinion and can also revolve around the central line of the rotary table, and when the rotary mechanism works, the rotary table rotates relative to the underframe. This is a prior art description that is being reviewed herein.

The turning mode of the excavator is explained, and the turning mode of the excavator is the same as the operation mode of the turning mechanism 3 in the present device. When the excavator is operated to rotate, pressure oil output by the rotation pilot valve enters one side of a valve core of the rotation reversing valve to push the valve core of the rotation reversing valve to move, and an oil way of the rotation reversing valve is opened. Pressure oil output by the main pump enters a working oil way of the rotary motor through the rotary reversing valve to drive the rotary motor to rotate.

Pilot pressure oil from the rotary pilot valve simultaneously enters an SH oil port of the delay brake valve, and the pilot pressure oil of the SH oil port pushes a reversing valve core of the delay brake valve, so that the pressure oil output by the pilot pump enters a piston chamber of the rotary brake. The braking piston is jacked up to separate the braking friction plates to release braking, and the rotary motor can drive the rotary table to rotate through the rotary speed reducer. When the excavator is operated to stop rotating, the valve core of the rotary pilot valve returns to the middle position, pilot oil is relieved, the valve core of the rotary reversing valve returns to the middle position, the working oil path of the rotary motor is cut off, the rotary motor continues to rotate under the action of inertia, the original oil return side pressure of the rotary motor is increased, and the high-pressure oil serves as the main braking force for stopping rotating of the rotary motor. When the pressure reaches the set pressure of the rotary overflow valve, the rotary overflow valve is opened to release the pressure, so that the oil return side of the rotary motor is prevented from generating overhigh pressure, and the rotary hydraulic system is protected.

When the rotary pilot valve returns to the middle position, the pilot pressure oil signal speed for releasing the rotary brake is reduced to zero, the reversing valve moves under the action of the stored spring force, and the pressure oil for releasing the brake flows into the rotary motor shell of the well through the reducing valve throttling hole of the delay brake valve and then flows back to the hydraulic oil tank. The elastic force of the brake spring is applied to the friction plate through the brake piston to implement braking.

The utility model discloses an in some embodiments, snatch the subassembly and including bearing base 9, bear and encircle being provided with a plurality of arms 8 that snatch on the base 9, bear and be equipped with first hydraulic cylinder 14 on the base 9, all be equipped with the connecting rod 13 of being connected with first hydraulic cylinder 14's output on a plurality of arms 8 that snatch. The grabbing component can grab the dirt in the well as far as possible, so that the waste is prevented from being left in the well; the actual working principle of the grabbing component is as follows: through the telescopic control of the first hydraulic oil cylinder 14 arranged on the bearing base 9, a plurality of grabbing arms 8 arranged on the bearing base 9 in a surrounding mode are mutually closed or mutually far away, and therefore the grabbing of the wastes in the pipeline can be realized. And the first hydraulic cylinder 14 can accurately control the movement of the grabbing arm 8, and the later maintenance is convenient. When the output end of the arranged first hydraulic oil cylinder 14 extends out of the body of the first hydraulic oil cylinder 14, the grabbing arms 8 connected with the output end of the first hydraulic oil cylinder 14 through the connecting rod 13 are mutually far away, and then the waste is grabbed; instead, the gripper arms 8 are drawn together under the tension of the first hydraulic ram 14, and the solid waste is then carried out of the hoistway.

In some embodiments of the present invention, a retraction assembly is provided on the sidewall of the support arm 4 for controlling the retraction of the lower well arm 6. Can fold well arm 6 down through the shrink component that sets up on support arm 4, avoid well arm 6 down to be vertical state, occupy too much space, influence the loading of this device and the transportation in later stage.

The utility model discloses an in some embodiments, shrink subassembly is including setting up the second hydraulic cylinder 11 in support arm 4, and the output of second hydraulic cylinder 11 is articulated with lower well arm 6, is equipped with third hydraulic cylinder 5 on the lateral wall of support arm 4, and third hydraulic cylinder 5's output is articulated with the lateral wall of support arm 4. Can adjust the lower well arm 6 with support arm 4 articulated through the second hydraulic cylinder 11 that sets up in support arm 4, change lower well arm 6 promptly for support arm 4's angle, when making it can snatch the discarded object in the well, increase and snatch the subassembly and to the scope of snatching of the discarded object in the well, when avoiding operating personnel to need the adjustment to automobile body 1, just can snatch the discarded object in the well, and the waste time of and for the operating speed of this device. And the third hydraulic cylinder 5 that sets up can provide vertical ascending lift for lower well arm 6, makes it can move certain interval in vertical direction, snatchs the solid waste who lies in the different degree of depth in the well, increases the application range of this device.

Furthermore, a sliding block is arranged on the output end of the second hydraulic oil cylinder 11, and a limiting groove 20 matched with the sliding block is formed in the side wall of the well descending arm 6 along the extending direction of the sliding block, so that the well descending arm 6 can be guaranteed to move smoothly in the vertical direction.

The utility model discloses an in some embodiments, wear to be equipped with flexible arm 7 in the lower well arm 6, be equipped with the fourth hydraulic cylinder 12 of being connected with flexible arm 7 in the lower well arm 6, bear the base 9 and be connected with the free end of flexible arm 7. Through wear to be equipped with flexible arm 7 in well arm 6 down and can prolong the degree of depth that well arm 6 placed in the well down, snatch the solid waste who lies in the different degree of depth in the well, increase the application range of this device, salvage as far as possible the waste of placing in the well and remove.

In some embodiments of the present invention, a cleaning assembly is disposed on the sidewall of the bearing base 9. Just bear the clearance subassembly on the base 9 through the setting and can clear up the discarded object of salvaging, avoid on a large amount of sewage drips the road surface around the well that the discarded object was assisted big, be unfavorable for later stage sanitationman to clear up, the operating time of clearance subassembly is: after the grabbing component grabs the waste in the shaft and leaves the water surface in the shaft, the cleaning component immediately starts to work to clean up the sewage attached to the solid waste.

In some embodiments of the present invention, the cleaning assembly includes a plurality of nozzles surrounding the outer circumferential wall of the bearing base 9, and the nozzles are communicated with the external water pump. An annular cleaning area can be formed by surrounding the spray heads arranged on the outer circumferential wall of the bearing base 9, a certain impact force is formed, the waste in the plurality of grabbing arms 8 is washed, and then the solid waste which is as clean as possible is transferred to the storage box 2.

In some embodiments of the present invention, the scraping component for cleaning the well wall is installed on the bearing base 9. And still be equipped with the scraping subassembly of clearance well inner wall on bearing the base 9 and can scrape off the attachment such as greasy dirt of arranging in on the well inner wall, avoid it to adhere to and influence the sanitation around on the wall of a well.

The utility model discloses an in some embodiments, scrape the subassembly and include that a plurality of encircles set up the clearance portion 17 on bearing base 9 outer circumferential wall, bear and encircle on the base 9 and be provided with the drive ring 16, all seted up spacing groove 20 along its extending direction on the lateral wall of a plurality of clearance portions 17, be equipped with the stopper of a plurality of and spacing groove 20 adaptations on the drive ring 16, bear and be equipped with on the base 9 with drive ring 16 articulated fifth hydraulic cylinder 18. The scraping component can clean attachments such as oil stains and the like on the inner wall of the well, the attachments on the well wall are avoided from affecting the surrounding environmental sanitation, the plurality of cleaning parts 17 arranged on the bearing base 9 in a surrounding mode can adjust the position change relation of the free end of the cleaning parts under the driving of the driving ring 16, the inner wall of the well with different inner diameters can be cleaned, and the application range of the device can be widened. And the fifth hydraulic cylinder 18 is arranged to provide a relatively stable driving manner for the movement of the driving ring 16.

Furthermore, the driving motor 15 for driving the bearing base 9 to rotate is arranged on the telescopic arm 7, and the arranged driving motor 15 can force the bearing base 9 to do circular motion, so that the inner wall of the well can be scraped by driving cleaning, and attachments such as oil stains attached to the inner wall of the well can be cleaned.

In some embodiments of the present invention, a scraper 19 is provided on the free end of the cleaning portion 17. The scraper 19 arranged on the cleaning part 17 can increase the cleaning area of the cleaning part 17, and the cleaning part can clean as much waste as possible in one step when the cleaning part works.

To sum up, the embodiment of the application provides a sanitation cleaning engineering truck, including automobile body 1, installation base 10, support arm 4 and rotary mechanism 3, installation base 10 installs on the body of automobile body 1, and support arm 4 passes through rotary mechanism 3 to be connected with installation base 10, is equipped with well descending arm 6 on the support arm 4, is equipped with the subassembly that snatchs that is used for snatching the filth on well descending arm 6. The sanitation cleaning engineering vehicle provided by the technical scheme can provide a quick cleaning mode when sanitation personnel clean dirt in a shaft, so that the problems that the existing cleaning equipment cleans solid waste in the dirt, the solid waste blocks a pipeline and influences the normal operation of sewage treatment equipment are avoided, the device can shuttle in the main street and the small street of the street through the arranged vehicle body 1, the shaft in different streets is treated, and a solution is timely provided for sewage treatment in municipal engineering; according to the technical scheme, the installation base 10, the supporting arm 4 and the rotating mechanism 3 are arranged to provide stable support for operation of the device, then the installation base 10 is installed on the body of the vehicle body 1, an operation platform is provided for operation of the device, the supporting arm 4 is connected with the installation base 10 through the rotating mechanism 3, the supporting arm 4 is provided with the well descending arm 6, the well descending arm 6 is provided with a grabbing component for grabbing dirt, solid waste placed in a well can be grabbed through the structure, and the solid waste is prevented from being accumulated in the well to cause well blockage and influence on sewage discharge; the actual operation flow of the technical scheme is as follows: after the vehicle body 1 is started to a proper position close to a well, the supporting arm 4 and the mounting base 10 are rotated by a certain angle through the rotating mechanism 3, the lower well arm 6 arranged on the supporting arm 4 is opposite to the well, the lower well arm 6 and the grabbing component arranged on the lower well wall are conveniently lowered into the well, then the lower well arm 6 extends in the vertical direction, the lower well arm 6 falls into the well, solid dirt in the well is grabbed through the grabbing component arranged on the lower well arm 6, and when sewage in the well is extracted in a later period, the waste carried in the sewage blocks the normal operation of the extracting equipment, and the processing speed of the sewage in the well can be accelerated.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a sanitation cleaning engineering car which characterized in that, includes automobile body, installation base, support arm and rotary mechanism, the installation base install in on the body of automobile body, the support arm passes through rotary mechanism with the installation base is connected, be equipped with down the well arm on the support arm, be equipped with the subassembly that snatchs that is used for snatching the filth on the well arm down.

2. The sanitation cleaning engineering truck according to claim 1, wherein the grabbing assembly comprises a bearing base, a plurality of grabbing arms are arranged on the bearing base in a surrounding manner, a first hydraulic oil cylinder is arranged on the bearing base, and a connecting rod connected with an output end of the first hydraulic oil cylinder is arranged on each of the grabbing arms.

3. The sanitation cleaning engineering truck according to claim 1, wherein a retraction assembly is provided on a side wall of the support arm for controlling the retraction of the lower well arm.

4. The sanitation cleaning engineering truck according to claim 3, wherein the retraction assembly comprises a second hydraulic cylinder arranged in the support arm, an output end of the second hydraulic cylinder is hinged to the well descending arm, a third hydraulic cylinder is arranged on an outer side wall of the support arm, and an output end of the third hydraulic cylinder is hinged to an outer side wall of the support arm.

5. The sanitation cleaning engineering truck according to claim 2, wherein a telescopic boom is arranged in the lower well boom in a penetrating manner, a fourth hydraulic oil cylinder connected with the telescopic boom is arranged in the lower well boom, and the bearing base is connected with a free end of the telescopic boom.

6. The sanitation cleaning engineering truck according to claim 2, wherein a cleaning assembly is arranged on a side wall of the bearing base.

7. The sanitation cleaning engineering truck according to claim 6, wherein the cleaning assembly comprises a plurality of nozzles circumferentially arranged on the outer circumferential wall of the bearing base, and the nozzles are communicated with an external water pump.

8. The sanitation cleaning engineering truck according to claim 2, wherein a cleaning assembly for cleaning a well wall is mounted on the bearing base.

9. The sanitation cleaning engineering truck according to claim 8, wherein the cleaning assembly comprises a plurality of cleaning parts circumferentially arranged on the outer circumferential wall of the bearing base, a driving ring circumferentially arranged on the bearing base, a plurality of limiting grooves formed in the side walls of the cleaning parts along the extending direction of the cleaning parts, a plurality of limiting blocks adapted to the limiting grooves formed in the driving ring, and a fifth hydraulic cylinder hinged to the driving ring and arranged on the bearing base.

10. The sanitation cleaning engineering truck according to claim 9, wherein a scraper is provided at a free end of the cleaning part.