CN107965043B

CN107965043B - Sewer dredging and cleaning vehicle

Info

Publication number: CN107965043B
Application number: CN201711455431.7A
Authority: CN
Inventors: 程磊; 单龙; 孔德军; 桑健权
Original assignee: Xuzhou XCMG Environment Technology Co Ltd
Current assignee: Xuzhou XCMG Environment Technology Co Ltd
Priority date: 2017-12-28
Filing date: 2017-12-28
Publication date: 2024-05-17
Anticipated expiration: 2037-12-28
Also published as: CN107965043A

Abstract

The invention relates to a sewer dredging and cleaning vehicle, which comprises a liquid spraying system, a water spraying system and a water spraying system, wherein the liquid spraying system is used for generating high-pressure liquid and spraying the liquid outwards; the sewage suction system comprises a suction component and a sludge tank (8), wherein the suction component is used for sucking waste into the sludge tank (8); the control part is used for controlling the independent work or the combined work of the liquid spraying system and the sewage sucking system, realizing the function of dredging a sewer when the liquid spraying system is made to independently work, realizing the function of sucking sewage when the sewage sucking system is made to independently work, realizing the function of digging a groove body when the liquid spraying system and the sewage sucking system are made to jointly work, digging the groove body through high-pressure liquid sprayed by the liquid spraying system, and sucking waste generated by digging the groove body into a sludge tank (8) through the sewage sucking system. The sewer dredging and cleaning vehicle integrates the functions of dredging and cleaning, dirt suction and digging the groove body, can be suitable for different working conditions, has strong universality, can improve the working efficiency and reduces the labor intensity of workers.

Description

Sewer dredging and cleaning vehicle

Technical Field

The invention relates to the technical field of sanitation machinery, in particular to a sewer dredging and cleaning vehicle.

Background

Along with the continuous development of economy, urban construction investment in China is larger and larger, urban process is faster and more, urban water consumption is increased and water discharge is increased and more, a Chinese sewer pipe network is generally smaller and more complex, and in recent years, serious waterlogging accidents caused by personal casualties occur due to sewer siltation, so dredging of the sewer pipe is very important. However, the existing sewer dredging and cleaning vehicle mainly comprises small and medium-sized products, meanwhile, the small-sized products (two shafts) are mainly used, a vacuum system mainly adopts a vacuum pump, the suction stroke and the suction distance are small, and the requirements of large suction stroke, large working range and multi-working-task combined operation cannot be met.

Disclosure of Invention

The invention aims to provide a sewer dredging and cleaning vehicle, which can improve the operation capacity of the cleaning vehicle.

In order to achieve the above object, the present invention provides a sewer dredging and cleaning vehicle, comprising:

A liquid spraying system for generating high-pressure liquid and spraying the liquid outwards;

The sewage suction system comprises a suction component and a sludge tank, wherein the suction component is used for sucking waste into the sludge tank;

The control component is used for controlling the independent work or the combined work of the liquid spraying system and the sewage sucking system, realizing the function of dredging a sewer when the liquid spraying system is made to independently work, realizing the function of sucking sewage when the sewage sucking system is made to independently work, realizing the function of digging a groove body when the liquid spraying system and the sewage sucking system are made to jointly work, digging the groove body through high-pressure liquid sprayed by the liquid spraying system, and sucking waste generated by the digging groove body into a sludge tank through the sewage sucking system.

Further, the liquid spraying system comprises a liquid storage tank, a pump and a hose, wherein the pump is arranged on the chassis and is used for sucking liquid in the liquid storage tank to form high-pressure liquid and spraying the high-pressure liquid outwards through the hose.

Further, the liquid spraying system further comprises a winding disc and a hose winding guide, wherein the winding disc is arranged in front of the cab, the winding disc is used for winding the hose, the hose winding guide is used for driving the winding disc to rotate so as to achieve extension and retraction of the hose, and the head of the hose is advanced under the action of high-pressure liquid.

Further, the sewage suction system comprises a centrifugal fan and a hydrostatic system, wherein the centrifugal fan is arranged on the chassis, and the hydrostatic system is used for driving the centrifugal fan to work to generate negative pressure so as to suck waste into the sludge tank.

Further, the suction component comprises a dirt suction pipe arranged above the vehicle roof, a part of the length section of the dirt suction pipe forms a telescopic arm, and the dirt suction pipe can realize telescopic movement, swing in a horizontal plane and amplitude in a vertical plane.

Further, the device also comprises a scissor type lifting mechanism which is arranged between the chassis and the sludge tank and is used for jacking the inner end of the sludge tank in an open state so as to discharge sludge and carrying out sewage suction operation in a retracted state.

Further, the lifting mechanism comprises an upper supporting structure, a lower supporting structure and a first driving mechanism, wherein,

The first ends of the upper supporting structure and the lower supporting structure are rotatably connected, the second end of the upper supporting structure is connected with the sludge tank, and the second end of the lower supporting structure is connected with the chassis;

The first driving mechanism is arranged between the upper supporting structure and the lower supporting structure and is used for adjusting the included angle of the upper supporting structure relative to the lower supporting structure.

Further, a float switch and a detector are arranged in the sludge tank, wherein,

The float switch can trigger the detector when the liquid level in the sludge tank reaches a preset height;

The control part is used for stopping the dirt sucking operation when the trigger signal is received.

Further, the waste that the soil pick-up system is capable of absorbing includes sludge and dry materials.

Further, the sludge tank locking device further comprises a locking system, wherein the rear end of the sludge tank is provided with a door body for opening or closing the sludge tank, and the locking system is arranged between the rear end of the sludge tank and the door body and used for locking and unlocking the door body relative to the sludge tank.

Further, the locking system includes:

the locking piece is used for locking the door body relative to the sludge tank when moving to the first position and unlocking the door body and the sludge tank when moving to the second position;

the connecting rod mechanism is used for driving the locking piece to move to reach a first position or a second position; and

And the second driving mechanism is used for driving the link mechanism to move so as to realize the position switching of the locking piece.

Further, the locking system further comprises: the control part and the operating element, the operating element can send a signal to the control part through receiving external operation to control the second driving mechanism to drive the link mechanism to move.

Further, the locking system comprises a plurality of locking pieces, and the plurality of locking pieces are driven by the same connecting rod mechanism.

Further, the locking piece is rotatably arranged on the sludge tank, the second driving mechanism comprises a linear driving mechanism, and the linear driving mechanism can drive the connecting rod mechanism to swing, so that the locking piece is driven to rotate to reach the first position or the second position.

Further, the locking system further comprises a first connecting piece, the first connecting piece is rotatably arranged on the sludge tank, the connecting rod mechanism comprises two groups of connecting rods along the circumferential direction of the sludge tank, the locking piece is arranged on each group of connecting rods, one ends, close to each other, of the two groups of connecting rods are respectively arranged on opposite sides of the rotatable connecting part of the first connecting piece, and the driving mechanism can enable the two groups of connecting rods to swing towards opposite directions when driving the first connecting piece to move.

Further, the locking system further comprises a second connecting piece, wherein the second connecting piece is arranged on at least one group of connecting rods and is rotatably connected with the sludge tank, and the second connecting piece is used for providing support for the connecting rods.

Further, each group of connecting rods comprises a plurality of connecting rods, the connecting rods are connected end to end in sequence, and the locking piece is arranged at the end part of each connecting rod or at the joint of the adjacent connecting rods.

Further, the locking system further comprises a joint bolt, the locking piece is connected with the connecting rod through the joint bolt, and installation errors of the locking piece and the connecting rod can be compensated through adjusting the screwing depth of the joint bolt.

Further, each locking piece is located on the inner side of the connecting rod, and the rotating directions of the locking pieces corresponding to the two groups of connecting rods are opposite when the first position and the second position are switched.

Further, the locking piece comprises a lock hook part and a connecting part, wherein the lock hook part is used for being clamped with the door body so as to lock the door body relative to the sludge tank, the connecting part is provided with a hinged interface which is used for being rotatably connected with the sludge tank, and the connecting rod is rotatably arranged at one end, far away from the lock hook part, of the connecting part.

Based on the technical scheme, in the embodiment of the sewer dredging and cleaning vehicle disclosed by the invention, the control part can control the liquid spraying system and the sewage sucking system to independently work or jointly work, the sewer is dredged when the liquid spraying system is enabled to independently work, sewage is sucked into the sewer when the sewage sucking system is enabled to independently work, the groove body is dug when the liquid spraying system and the sewage sucking system are enabled to jointly work, the groove body is dug through high-pressure liquid sprayed by the liquid spraying system, and waste generated by the dug groove body is sucked into the sludge tank through the sewage sucking system. The sewer dredging and cleaning vehicle integrates the functions of dredging and cleaning, dirt suction and digging the groove body, can be suitable for different working conditions, has strong universality, can improve the working efficiency and reduces the labor intensity of workers.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:

Fig. 1 is a schematic view showing a structure of an embodiment of a sewer dredging cleaning vehicle according to the present invention.

Fig. 2 is a schematic view showing a state that one embodiment of the sewer dredging cleaning vehicle of the present invention is in a discharging condition.

Fig. 3 is a schematic structural view of an embodiment of a lifting mechanism in the sewer dredging cleaning vehicle of the present invention.

FIG. 4 is a schematic view showing the structure of an embodiment of a locking system for a rear door body of a sludge tank in a sewer dredging and cleaning vehicle according to the present invention;

FIG. 5 is a schematic view of the structure of the connection of the locking member and the connecting rod in the door locking system;

Fig. 6 is a schematic structural view of a first connector and related connectors in the locking system of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be understood that the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present invention.

Referring to fig. 1 to 6, in an exemplary embodiment of a sewer dredging cleaning vehicle provided by the present invention, the sewer dredging cleaning vehicle includes: the device comprises a liquid spraying system, a sewage sucking system and a control component. Wherein, the liquid spraying system is used for generating high-pressure liquid and spraying the liquid outwards; the sewage suction system comprises a suction component and a sludge tank 8, wherein the suction component is used for sucking wastes such as sludge in a sewer into the sludge tank 8 for storage and transportation.

The control component is used for controlling the liquid spraying system and the sewage sucking system to work independently or jointly and can be selected according to the functional requirement. The liquid spraying system and the sewage sucking system can adopt two sets of power systems, and can not interfere with each other during working. When the liquid spraying system works independently, the function of dredging the sewer is realized, namely, the inside of the sewer is cleaned by the scouring force of high-pressure liquid. When the sewage suction system is operated independently, a sewage suction function is realized, for example, waste such as sludge in the sewage is sucked into the sludge tank 8 by vacuum suction. When the liquid spraying system and the sewage sucking system are combined to work, the function of digging the groove body is realized, the high-pressure liquid sprayed by the liquid spraying system is used for digging the groove body, and the waste generated by digging the groove body is sucked into the sludge tank 8 through the sewage sucking system.

The sewer dredging and cleaning vehicle integrates the functions of dredging and cleaning, dirt sucking and high-pressure fluid digging the groove body, and the multifunctional sewer dredging and cleaning vehicle can be suitable for different working conditions, has strong universality, can improve the working efficiency and reduces the labor intensity of workers.

The method of digging the groove body by using the high-pressure fluid is particularly suitable for digging the groove body in the area buried with the underground pipeline, utilizes the high-pressure water to excavate, mainly utilizes the scouring force of the high-pressure fluid to remove the redundant materials to form the groove body, gradually removes the redundant materials when digging the groove body, and can effectively avoid the damage of the underground pipeline caused by mechanical excavation. The direction of the high-pressure fluid beam is easy to control, the excavated area is better in visualization, the excavated area can be accurately controlled, and the construction quality is optimized. The waste generated in the excavation process can be directly sucked into the sludge tank 8 through the sewage suction system, and the steps of grooving and removing redundant materials can be simultaneously performed, so that the working efficiency can be improved.

As shown in fig. 1, the liquid spraying system includes a liquid tank 5, a pump 4, and a hose, the pump 4 being provided on a chassis 12 for sucking the liquid in the liquid tank 5 to form a high-pressure liquid, and spraying the high-pressure liquid outward through the hose. For example, the liquid storage tank 5 can store water to spray high-pressure water outwards from the hose, and the high-pressure water beam can be used for dredging and cleaning a sewer or digging a tank body. The liquid spraying system can greatly improve the dredging effect of the pipeline, avoid secondary pollution of pipeline cleaning to the environment, effectively improve the working efficiency and reduce the labor intensity of workers.

In order to ensure the pressure of high-pressure liquid, the pump 4 adopts a high-capacity water pump, so that high-pressure water can be formed, and redundant materials can be effectively removed to form a tank body during the excavation work of the buried underground pipeline area. The pump 4 can be driven by the auxiliary engine 9 to enable the liquid spraying system to work independently. The liquid storage tank 5 can be used for storing liquid such as water, and the volume can reach 3380L, provides high-pressure liquid for dredging, cleaning and water excavation of a sewer, adopts a crosslinked polyethylene material, and has the advantages of light weight, corrosion resistance, durability and impact resistance. The number of the liquid storage tanks 5 can be 4, and the liquid storage tanks are respectively arranged at two sides of the sludge tank 8, below the chassis 12 frame and behind the chassis 12 cab.

Further, the liquid spraying system further comprises a winding disc 1 and a hose winding guide 2, wherein the winding disc 1 is arranged in front of the cab, the winding disc 1 is used for winding a hose for high-pressure dredging, the hose winding guide 2 is used for driving the winding disc 1 to rotate so as to achieve extension and retraction of the hose, the tail part of the hose is connected with a pump 4 through a high-pressure pistol connector 3, and the head part of the hose is advanced under the action of high-pressure liquid. When high-pressure liquid needs to be sprayed through the hose, the hose is released from winding on the winding disc 1 through the hose winding guide 2, and after the hose is used, the winding disc 1 is driven to rotate through the hose winding guide 2 to retract the hose.

The hose twines on the hose reel, stretches out and retrieves through hose winding director 2, makes the effective business turn over sewer pipe of hose, and the shower nozzle of coupling hose advances under the effect of high-pressure water, dredges the sewer pipe that blocks up through high-pressure water simultaneously, need not the workman and goes into the well, improves the operation security. The winding disc 1 and the hose rewinding guide 2 are arranged right in front of the cab of the chassis 12; the pump 4 is connected with the auxiliary engine 9 through a belt and is arranged above the chassis 12 frame.

As shown in fig. 1, the sewage suction system comprises a centrifugal fan 6 and a hydrostatic system, wherein the centrifugal fan 6 is arranged on a chassis 12 at the middle position along the length direction, is arranged at the upper part of the frame and is communicated with a sludge tank 8, and the hydrostatic system is used for driving the centrifugal fan 6 to work to generate negative pressure so as to suck waste into the sludge tank 8. The hydrostatic system can control engagement and disengagement in the cab, and has larger air flow, higher working efficiency and pumping depth of 25m compared with a common vacuum pump.

The sewage suction system can realize the sewage suction function of the sewer. Meanwhile, the centrifugal fan 6 can suck away sludge generated in the process of excavating the tank body in time when working, so that the tank body can be excavated and the sewage is sucked up simultaneously, the combined operation function is achieved, and the combined operation can be independently operated without interference. Utilize high-pressure water to excavate the tank body can effectively avoid the damage of underground pipeline that mechanical excavation caused, excavation area control is accurate.

Still referring to fig. 1, the suction means comprises a suction tube 15 disposed above the roof of the vehicle, a portion of the length of the suction tube 15 forming a telescoping arm 10, the suction tube 15 being capable of telescoping, swinging in a horizontal plane and luffing in a vertical plane.

Preferably, the telescopic arm 10 is arranged above the cab of the chassis 12, and is supported by a telescopic arm support frame 11 arranged in front of the cab to extend forward, the front end of the telescopic arm 10 is connected with a soft dirt suction pipe 15, and the soft dirt suction pipe 15 can be bent downwards to form an L shape at the front end of the cab.

The telescopic arm 10 can be made of aluminum alloy, and the soft dirt suction pipe 15 can be made of a flexible high-strength hose. The telescopic arm 10 can be controlled by driving components such as a hydraulic cylinder and the like, can realize the functions of telescopic, rotary and amplitude variation, and greatly expands the working range of the sewer dredging and cleaning vehicle.

As shown in fig. 1, the sludge tank 8 is provided at the rear of the chassis 12, and a door 14 is provided at the rear end of the sludge tank 8 for opening and closing the sludge tank 8. A lifting mechanism 13 is arranged between the bottom of the sludge tank 8 and the chassis 12. When the sewage sucking operation is required, the lifting mechanism 13 is folded, the sewage sludge is sucked into the sludge tank 8 through the absorption pipe by the centrifugal fan 6, when the sewage sludge is required to be discharged, the lifting mechanism 13 is opened, the front end of the sludge tank 8 is lifted, the sludge tank 8 is in an inclined state, and the sewage sludge is discharged from the rear part when the door body 14 is opened. Preferably, the sludge tank may be made of high strength weathering steel.

As shown in fig. 2, the lifting mechanism 13 is a scissor type lifting mechanism 13 for lifting up the inner end of the sludge tank 8 in an open state to discharge sludge and performing a sewage suction operation in a retracted state. The lifting mechanism 13 with the structure has the advantages of simple structure, easy realization of folding, small occupied space and safer and more stable operation.

Preferably, as shown in fig. 3, the lifting mechanism 13 comprises an upper support structure 131, a lower support structure 132 and a first drive mechanism 133. Wherein the first ends of the upper support structure 131 and the lower support structure 132 are rotatably connected, the second end of the upper support structure 131 is connected with the sludge tank 8, and the second end of the lower support structure 132 is connected with the chassis 12. As can be seen from fig. 2, the angle formed between the upper support structure 131 and the lower support structure 132 is directed towards the front of the sewer dredging wash vehicle.

The first driving mechanism 133 is disposed between the upper supporting structure 131 and the lower supporting structure 132, and has a first end connected to the upper supporting structure 131 and a second end connected to the lower supporting structure 132, and the first driving mechanism 133 is used for adjusting an included angle of the upper supporting structure 131 relative to the lower supporting structure 132. Preferably, the first driving mechanism 133 may be a linear driving mechanism such as a hydraulic cylinder, an air cylinder, a linear motor, or an electric push rod.

When the first driving mechanism 133 extends, the first end pushes the upper supporting structure 131 to move upwards, the front position of the sludge tank 8 is jacked up, the lifting angle can be controlled according to the requirement, and the sludge tank 8 is in a backward inclined state to realize discharging. Preferably, the lifting angle may reach 47 °. When the first driving mechanism 133 is retracted, the upper supporting structure 131 is pulled by the first end to move downwards, so that the front position of the sludge tank 8 is put down, and the sludge tank 8 is returned to the normal position, thereby realizing the sewage suction operation.

Specifically, as shown in fig. 3, the upper supporting structure 131 and the lower supporting structure 132 are formed by welding high-strength steel plates, and each is formed by combining and connecting a group of plates arranged in parallel, so that not only can the strength of the lifting mechanism 13 be improved, but also the first driving mechanism 133 can be conveniently installed, and the connection between the chassis 12 and the sludge tank 8 should be realized. The first ends of the upper support structure 131 and the lower support structure 132 are rotatably connected by a first pin 134, the second end of the upper support structure 131 is rotatably connected to the sludge tank 8 by a second pin 135, and the lower support structure 132 is connected to the chassis 12 by a third pin 136. The main structure of the lifting mechanism 13 in this embodiment is welded by high-strength steel plates, and compared with the lifting mode realized by only a single oil cylinder or a double oil cylinder, the plate structure has higher safety and stability.

Further, a float switch and a detector are arranged in the sludge tank 8, wherein the float switch can trigger the detector when the liquid level in the sludge tank 8 reaches a preset height; the control part is used for stopping the dirt sucking operation when the trigger signal is received. In order to achieve a high working efficiency, the detector may be triggered when the sludge tank 8 is full.

Preferably, the waste materials that the soil pick-up system of the present invention is capable of absorbing include sludge and dry materials. Besides absorbing sludge, the device can also be used for sucking and transferring dry materials such as sand, stones, soil and the like, and has wide application range.

As shown in fig. 1 and 2, a door 14 is provided at the rear end of the sludge tank 8, and an upper portion of the door 14 is rotatably connected to the sludge tank 8, and a lower portion thereof is openable and closable with respect to the sludge tank 8 for opening or closing the sludge tank 8.

The sewer dredging and cleaning vehicle further comprises a locking system 7, wherein the locking system 7 is arranged between the rear end of the sludge tank 8 and the door body 14 and is used for locking and unlocking the door body 14 relative to the sludge tank 8. When the sewer dredging and cleaning vehicle is in sewage sucking operation, the locking system 7 locks the door body 14 at the rear end of the sludge tank 8, so that the sludge tank 8 is in a sealed state; when the sewer dredging and cleaning vehicle needs to be discharged, the locking system 7 unlocks the door body 14 relative to the sludge tank 8 so as to discharge the sludge.

In one embodiment, as shown in fig. 4, the locking system 7 includes: a locking member 71, a linkage mechanism, and a second drive mechanism 75. Wherein the locking member 71 is used to lock the door 14 relative to the sludge tank 8 when in the first position and unlock the door 14 from the sludge tank 8 when in the second position, and a plurality of locking members 71 may be provided between the sludge tank 8 and the door 14 to ensure reliable locking. The linkage is used to move the locking member 71 to switch between the first position and the second position, and the movement form of the locking member 71 can be rotation or movement. The second driving mechanism 75 is for driving the link mechanism to move to achieve the position switching of the lock 71. For example, it is within the scope of the present invention that the second drive mechanism 75 may be electrically powered, including various types of rotary or linear drive mechanisms, or manually powered.

In order to ensure the reliability of locking, a plurality of locking members are provided in the circumferential direction of the door body 14, and a plurality of locking members 71 are driven by the same link mechanism. The linkage mechanism can drive each locking piece 71 to synchronously move, so that each locking piece 71 synchronously moves to the first position or the second position to realize synchronous locking or unlocking.

The locking system 7 of this embodiment has at least one of the following advantages:

(1) When the locking and unlocking between the sludge tank 8 and the door body 14 are realized, the second driving mechanism is controlled to move, and each locking piece can be driven to move simultaneously through the connecting rod mechanism, so that linkage operation is realized, the locking and unlocking processes are more convenient and quick, independent locking and unlocking operations on each locking piece are not needed, and the locking and unlocking operations are easy to realize through one-key operation or one-hand operation.

(2) In the prior art, each locking piece is easy to clamp by a mode of independent operation, and the locking system provided by the invention has the advantages that the hand can be far away from the position of the locking piece during operation, so that the operation safety is improved.

(3) Through the mode of linkage operation, the positions of the locking pieces in the locking state are kept consistent, the sludge tank 8 and the door body 14 can be reliably locked, and under the condition that the sludge tank 8 contains fluid and is closed by the door body 14, the problem that fluid in the sludge tank 8 leaks due to the fact that the individual locking pieces are not in the first position or locked in place due to missing operation can be avoided, and the sealing performance can be improved.

(4) Through the mode of linkage operation, the positions of the locking pieces in the unlocking state are kept consistent, the sludge tank 8 and the door body 14 can be reliably separated, so that the unlocking is quicker, the condition that the locking pieces are not in the second position or unlocked in place due to missing operation is avoided, and the positions of the locking pieces are required to be repeatedly adjusted to separate the sludge tank 8 from the door body 14.

(5) The locking piece can be accurately locked and unlocked without repeated attempts, so that the success rate is high, the movement times of the locking piece can be obviously reduced after long-term work, and the service life of the locking system is prolonged.

Preferably, the second drive mechanism 75 is electrically powered for power take off, for which purpose the locking system 7 may further comprise: a control part and an operating element, the operating element can receive an external operation and send a signal to the control part so as to control the second driving mechanism 75 to drive the linkage mechanism to move. The embodiment can realize locking and unlocking in a one-key operation mode, is simple and quick to operate, saves time and labor, and can improve safety. The locking system 7 can realize one-key operation, realize the opening and closing of the rear door 14, and can be provided with an operation panel on the side surface of the vehicle so as to install an operation element, thereby being convenient to operate, safe and reliable.

For example, the operating element may be a button, push rod, knob or the like. The operating element may be designed as a self-locking, the magnitude and duration of the control signal of the drive mechanism being entered in the control unit, and the second drive mechanism 75, under the control of a preset signal, bringing the locking member into exact movement to the first position, when the operator triggers the operating element. Alternatively, the operating element may be designed as a click, and the operator may continue to apply an external force to the operating element until the second driving mechanism 75 drives the locking member 71 to move accurately to the first position.

In one embodiment, as shown in fig. 4, each locking member 71 is rotatably disposed on the sludge tank 8, and the second driving mechanism 75 includes a linear driving mechanism capable of driving the link mechanism to swing in the plane of the door 14, so as to drive the locking member 71 to rotate to reach the first position or the second position. The locking member 71 is rotatably provided to the sludge tank 8, so that the movement space can be saved. Alternatively, the locking member 71 may be locked and unlocked by means of translation.

For example, the linear driving mechanism can be a hydraulic cylinder to form a hydraulic locking system, and a larger driving force can be provided by a hydraulic cylinder driving mode, so that the locking and unlocking process is more reliable, and the driving is smoother. Alternatively, the linear driving mechanism may be a cylinder electric push rod, a linear motor, or the like.

Further, as shown in fig. 4, the locking system 7 may further include a first connecting member 73, the first connecting member 73 being rotatably provided on the sludge tank 8, the link mechanism including two sets of links in the circumferential direction of the sludge tank 8, each locking member 71 being provided on the two sets of links, respectively. One ends of the two sets of links, which are close to each other, are respectively provided at opposite sides of the rotatable connection portion of the first link 73, and the second driving mechanism 75 is capable of swinging the two sets of links in opposite directions when the first link 73 is driven to rotate.

Preferably, two sets of links are provided on the left and right sides of the door body 14, the two sets of links are connected at an intermediate position of the lower portion of the door body 14, and the second driving mechanism 75 is located below the connection position of the two sets of links.

The individual links of the link mechanism are connected to each other to form a shape matching the contour of the sludge tank 8 so that the locking piece 71 is locked at the outer periphery of the sludge tank 8. Preferably, the sludge tank 8 has a circular outline, and the connecting rods are connected to each other to form a circle. Since the door 14 is opened and closed only at the lower portion, the respective links are enclosed to form a substantially semicircular shape.

In order to strengthen the strength of the connection of the two sets of links through the first connecting member 73 and to increase the stability of the link structure during movement, a link is further provided at one end of the set of links connected to the first connecting member 73, which is remote from the second driving mechanism 75, as an extension, and a locking member 71 is provided at the free end of the link, which is the extension.

Further, from the viewpoint of increasing the stability of the movement of the linkage, the locking system 7 further comprises a second connecting member 74, wherein at least one set of links is provided with the second connecting member 74, the second connecting member 74 being rotatably connected to the sludge tank 8 for providing support to the links. Preferably, the second connecting member 74 is provided on a link between adjacent locking members 71 or between the locking members 71 and the second driving mechanism 75. As can be seen from fig. 4, the link mechanism is hinged with the sludge tank 8 through the locking pieces 71, the first connecting piece 73 and the second connecting piece 74, so that the deformation resistance of the link mechanism during movement can be reduced, the movement stability can be improved, and the locking and unlocking processes can be ensured to be more reliable.

Preferably, both the first and second connection members 73 and 74 may be designed as plate-like structures on which the hinge interface is easily provided.

Still referring to fig. 4, each set of links includes a plurality of links connected end-to-end in sequence with a locking member 71 provided at an end of the link or at a junction of adjacent links. In order to achieve more reliable locking of the door body 14, the locking member 71 and the link structure may be disposed as close to the outer contour of the door body 14 as possible, so that the shape formed by the connecting links in the link mechanism by joining together may substantially match the outer contour of the door body 14.

Preferably, each locking member 71 is located inside the link enclosing formation region, because the swinging directions of the two sets of links are opposite when the driving mechanism drives the first connecting member 73 to rotate, and thus the rotation directions of the locking members 71 corresponding to the two sets of links are opposite when switching between the first position and the second position. For example, the locking members 72 corresponding to the two sets of links may be disposed opposite each other.

Fig. 5 shows a structure of one embodiment of the locking member 71, and the locking member 71 includes a latch hook portion 711 and a connecting portion 712. The latch hook 711 is configured to engage with the door 14 to lock the door 14 with respect to the sludge tank 8, for example, a pin may be provided on the sludge tank 8, and the latch hook 711 may be configured to engage the pin with a slot of the latch hook 711 when rotated to the first position. The connection 712 has a hinge interface for rotatable connection with the sludge tank 8, as shown at hinge point a in fig. 6. The connecting rod is rotatably arranged at one end of the connecting part 712 far away from the latch hook part 711, so that the locking piece 71 can be driven to rotate around the hinged interface when the connecting rod swings, and the latch hook part 711 is clamped with or separated from the sludge tank 8.

At the hinge interface of the locking member 71 and the sludge tank 8, the locking member 71 is fixed on the sludge tank 8 through a fixing plate 713 and a fixing bolt 714, and the locking member 71 can rotate around the fixing bolt 714 to achieve hooking and unhooking of the latch hook part 711.

Alternatively, a pin shaft may be disposed on the latch hook portion 711, and a slot is disposed at a corresponding position on the sludge tank 8, so that the pin shaft may be engaged with or disengaged from the slot when the link mechanism drives the latch hook portion 711 to rotate.

Still referring to fig. 5, the locking system of the present invention further includes a joint bolt 715, the locking member 71 is coupled to the link by the joint bolt 715, and an installation error of the locking member 71 and the link can be compensated by adjusting a screw-in depth of the joint bolt 715. Specifically, the connecting rod is connected with the joint bolt 715 through the locknut 717, the tightening nut 718 and the connecting bolt 716, and the connection length of the connecting rod with the locking member 71 is adjustable by adjusting the screwing depth of the joint bolt 715, whereby errors in the assembly process can be adjusted, and stress is prevented from being generated at the position where the link mechanism is connected with the locking member 71.

Since the locking member 71 needs to be rotated frequently, in order to ensure the flexibility of rotation of the locking member 71, the locking and unlocking operations are smoother, and a lubrication part, such as an oil cup, is provided at the position where the locking member 71 is provided on the locking member 71 or the sludge tank 8, for lubricating the hinge joint at the connection part 712, thereby improving the service life.

In the above embodiment, the rotation planes of the first coupling member 73, the second coupling member 74 and the locking member 71 are the same, so that the link structure can move in the plane between the sludge tank 8 and the door body 14. The rotatable connection in the above embodiments may be in the form of a hinge or the like.

In order to make the operation of the locking system 7 of the sewer dredging cleaning vehicle according to the invention more clearly understood by a person skilled in the art, a detailed description will be given below taking fig. 4 as an example.

The linkage includes a first link 721, a second link 722, a third link 723, a fourth link 724, a fifth link 725, and a sixth link 726. Wherein the first link 721, the second link 722 and the third link 723 are sequentially connected end to form a first group of links, the first group of links being located at the right lower side of the sludge tank 8. The fourth link 724, the fifth link 725, and the sixth link 726 are connected end-to-end in sequence to form a second set of links, the second set of links being located at the lower left of the sludge tank 8.

A locking member 71 is provided at each of the free end of the first link 721, the junction of the first link 721 and the second link 722, and the free end of the third link 723; a locking member 71 is provided at the free end of the sixth link 726 and at the connection of the fifth link 725 and the sixth link 726, respectively.

As shown in fig. 4, the first link 73 is connected to the second link 722, the third link 723, the fourth link 724, and the linear driving mechanism. Specifically, the first link 73 is rotatably provided on the sludge tank 8 with respect to the hinge point a, the connection of the second link 722 and the third link 723 is at a position B of the first link 73, the position B is located at one side of the hinge point a, one end of the fourth link 724 is connected at a position C of the first link 73, and the positions B and C are located at opposite sides of the hinge point a, respectively. The linear driving mechanism may be a hydraulic cylinder, one end of which is connected to the sludge tank 8 and the other end of which is connected to the first link 73 at a position D located on the first link 73 outside the position C away from the hinge point a. The linear driving mechanism may be disposed obliquely to reduce the occupied space in the height direction.

Still referring to fig. 4, a second link 74 is provided at the junction of the fourth link 724 and the fifth link 725, and one end of the second link 74 is rotatably connected to the sludge tank 8, and the other end is connected to the fourth link 724 and the fifth link 725.

As shown in fig. 6, the linear driving mechanism, the first link 73, the second link 722, the third link 723, and the fourth link 725 constitute a five-link structure, and the linear driving mechanism drives the first link 73 to rotate about the hinge point a, thereby achieving movement of the entire locking system 7.

When the door 14 needs to be unlocked, the linear driving mechanism is controlled to retract, the first connecting piece 73 is driven to move clockwise, the first connecting rod 721, the second connecting rod 722 and the third connecting rod 723 are driven to move anticlockwise, and meanwhile, the fourth connecting rod 724, the fifth connecting rod 725 and the sixth connecting rod 726 are driven to rotate clockwise, so that the locking piece 71 is rotated to the second position to be unhooked, and the door 14 is separated, so that the door 14 is opened.

When the door 14 needs to be locked, the door 14 is closed, the linear driving mechanism is controlled to extend, the first connecting piece 73 is driven to move clockwise, the first connecting rod 721, the second connecting rod 722 and the third connecting rod 723 are driven to move clockwise, and meanwhile, the fourth connecting rod 724, the fifth connecting rod 725 and the sixth connecting rod 726 are driven to rotate anticlockwise, so that the locking piece 71 is rotated to the first position, and the door 14 is locked. This process is opposite to the unlocking action.

The rear door locking system 7 of the sewer dredging and cleaning vehicle is convenient to operate, high in safety, capable of reliably sealing the end part of the door body and the end part of the sludge tank 8, capable of preventing the phenomenon of sludge water dripping and leakage, and capable of prolonging the service life. Compared with a mechanical locking mechanism, the embodiment of the invention effectively solves the problems of operation convenience and safety, and one-key operation is completed through the control panel arranged on the side surface of the vehicle. Meanwhile, the problem that the sealing performance of the rear door of the sludge tank is poor, and the sludge water is easy to drip is solved, and the service life of the sludge tank is prolonged.

As can be seen from the above embodiments, the sewer dredging and cleaning vehicle of the present invention has the functions of suction, dredging and shipment of sewer sludge, and the underground sewer is strongly dredged and cleaned by high-pressure water, so as to thoroughly remove various sludge blocking the sewer and dirt attached to the wall of the pipeline. The device also has the water excavation function, and can effectively avoid damage to cables or pipe networks caused by mechanical excavation. The multifunctional dry-wet dredging vehicle can be used for sucking and transferring dry materials such as sand, stones and soil, and is a multifunctional dry-wet dredging vehicle integrating high-pressure cleaning, vacuum dirt suction and sludge transportation.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same; while the invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present invention or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of claim 15, it is intended to be covered by the scope of the claimed invention.

Claims

1. A sewer dredging and cleaning vehicle, comprising:

The sewage suction system comprises a suction component and a sludge tank (8), wherein the suction component is used for sucking waste into the sludge tank (8), and a door body (14) is arranged at the rear end of the sludge tank (8) and is used for realizing the opening or closing of the sludge tank (8);

The control component is used for controlling the liquid spraying system and the sewage sucking system to work independently or jointly, realizing the function of dredging a sewer when the liquid spraying system is made to work independently, realizing the function of sucking sewage when the sewage sucking system is made to work independently, realizing the function of digging a groove body when the liquid spraying system and the sewage sucking system are made to work jointly, digging the groove body through high-pressure liquid sprayed by the liquid spraying system, and sucking waste generated by digging the groove body into the sludge tank (8) through the sewage sucking system;

The locking system (7) is arranged between the rear end of the sludge tank (8) and the door body (14) and is used for locking and unlocking the door body (14) relative to the sludge tank (8);

Wherein the locking system (7) comprises:

A plurality of locking members (71) for locking the door body (14) with respect to the sludge tank (8) when moved to a first position and unlocking the door body (14) from the sludge tank (8) when moved to a second position;

The connecting rod mechanism is used for driving the locking pieces (71) to move to reach the first position or the second position, and a plurality of the locking pieces (71) are driven by the same connecting rod mechanism;

a second driving mechanism (75) for driving the link mechanism to swing in a plane where the door body (14) is located so as to realize position switching of the locking piece (71); and

The sludge tank comprises a first connecting piece (73), wherein the first connecting piece (73) is rotatably arranged on the sludge tank (8), the connecting rod mechanism comprises two groups of connecting rods along the circumferential direction of the sludge tank (8), each group of connecting rods is provided with a locking piece (71), one ends, close to each other, of the two groups of connecting rods are respectively arranged on opposite sides of a rotatable connecting part of the first connecting piece (73), and the second driving mechanism (75) can enable the two groups of connecting rods to swing towards opposite directions when the first connecting piece (73) is driven to move.

2. Sewer dredging cleaning vehicle according to claim 1, characterized in that the spraying system comprises a tank (5), a pump (4) and a hose, the pump (4) being arranged on the chassis (12) for sucking liquid in the tank (5) to form a high pressure liquid and spraying the high pressure liquid outwards through the hose.

3. Sewer dredging cleaning vehicle according to claim 2, characterized in that the liquid spraying system further comprises a winding disc (1) arranged in front of the cab and a hose winding guide (2), the winding disc (1) being used for winding the hose, the hose winding guide (2) being used for driving the winding disc (1) to rotate for extending and retracting the hose, the head of the hose being advanced under the action of the high pressure liquid.

4. Sewer dredging cleaning vehicle according to claim 1, characterized in that the sewage suction system comprises a centrifugal fan (6) and a hydrostatic system, the centrifugal fan (6) being arranged on a chassis (12), the hydrostatic system being adapted to drive the centrifugal fan (6) to operate to create a negative pressure for sucking waste into the sludge tank (8).

5. Sewer dredging cleaning vehicle according to claim 1, characterized in that the suction means comprise a suction pipe (15) arranged above the roof of the vehicle, a part of the length of the suction pipe (15) forming a telescopic arm (10), the suction pipe (15) being telescopic, oscillating in the horizontal plane and luffing in the vertical plane.

6. Sewer dredging cleaning vehicle according to claim 1, characterized in that it further comprises a scissor type lifting mechanism (13), said lifting mechanism (13) being arranged between the chassis (12) and the sludge tank (8) for lifting up the inner end of the sludge tank (8) in an open state for discharging sludge and for performing a sewage suction operation in a retracted state.

7. The sewer dredging cleaning vehicle according to claim 6, wherein the lifting mechanism (13) comprises an upper support structure (131), a lower support structure (132) and a first drive mechanism (133), wherein,

The first ends of the upper supporting structure (131) and the lower supporting structure (132) are rotatably connected, the second end of the upper supporting structure (131) is connected with the sludge tank (8), and the second end of the lower supporting structure (132) is connected with the chassis (12);

The first driving mechanism (133) is arranged between the upper supporting structure (131) and the lower supporting structure (132) and is used for adjusting the included angle of the upper supporting structure (131) relative to the lower supporting structure (132).

8. Sewer dredging cleaning vehicle according to claim 1, characterized in that a float switch and a detector are arranged in the sludge tank (8), wherein,

The float switch can trigger the detector when the liquid level in the sludge tank (8) reaches a preset height;

the control part is used for stopping the dirt sucking operation when receiving the trigger signal.

9. The sewer dredging cleaning vehicle according to claim 1, wherein the waste that the sewage suction system is capable of absorbing comprises sludge and dry matter.

10. Sewer dredging cleaning vehicle according to claim 1, characterized in that the locking system (7) further comprises an operating element which can send a signal to the control means by receiving an external operation to control the second drive mechanism (75) to drive the movement of the linkage mechanism.

11. Sewer dredging cleaning vehicle according to claim 1, characterized in that the locking member (71) is rotatably arranged on the sludge tank (8), the second drive mechanism (75) comprises a linear drive mechanism which can drive the link mechanism to oscillate, thereby driving the locking member (71) to rotate to the first or second position.

12. Sewer dredging cleaning vehicle according to claim 1, characterized in that the locking system (7) further comprises a second connection (74), at least one set of said connection rods being provided with said second connection (74), said second connection (74) being rotatably connected with the sludge tank (8) for providing support to said connection rods.

13. Sewer dredging cleaning vehicle according to claim 1, characterized in that each group of connecting rods comprises a plurality of connecting rods, a plurality of connecting rods are connected end to end in sequence, and the locking member (71) is arranged at the end of the connecting rod or at the connection of adjacent connecting rods.

14. Sewer dredging cleaning vehicle according to claim 1, characterized in that the locking system (7) further comprises a joint bolt (715), the locking member (71) is connected with the connecting rod by means of the joint bolt (715), and the installation error of the locking member (71) and the connecting rod can be compensated by adjusting the screwing depth of the joint bolt (715).

15. Sewer dredging cleaning vehicle according to claim 1, characterized in that each locking member (71) is located inside a link, the locking members (71) of the two sets of links being turned in opposite directions when switching between the first and the second position.

16. Sewer dredging cleaning vehicle according to claim 1, characterized in that the locking member (71) comprises a locking hook part (711) and a connecting part (712), the locking hook part (711) is adapted to be snapped with the door body (14) so as to lock the door body (14) with respect to the sludge tank (8), the connecting part (712) is provided with a hinge interface for rotatable connection with the sludge tank (8), and the connecting rod is rotatably provided at an end of the connecting part (712) remote from the locking hook part (711).