CN112832183B

CN112832183B - Multifunctional washing vehicle

Info

Publication number: CN112832183B
Application number: CN202011537695.9A
Authority: CN
Inventors: 艾和金; 宫超; 王家梅; 杨金树; 赵阳; 张楠; 潘家保; 纪运学; 朱雷; 陈寿元; 杜广伟
Original assignee: Anhui Airuite New Energy Special Vehicle Co Ltd
Current assignee: Anhui Airuite New Energy Special Vehicle Co Ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2022-11-25
Anticipated expiration: 2040-12-23
Also published as: CN112832183A

Abstract

The invention relates to the technical field of flushing vehicles, in particular to a multifunctional flushing vehicle. The invention comprises a chassis, a vehicle head and a carriage with a water tank arranged therein are arranged on the chassis, and the invention is characterized in that: the washing vehicle also comprises a spraying assembly at least arranged on one side of the carriage and an atomized washing component arranged on the vehicle head or the carriage or the chassis. The invention has simple structure and convenient use, can be used for the close-range direct injection flushing of difficult flushing areas such as walls, guardrails and the like, and can also effectively ensure the flushing effect; meanwhile, the invention also has two working postures of direct current washing and atomization spraying, thereby being capable of being flexibly selected according to the actual road surface condition on site.

Description

Multifunctional washing vehicle

Technical Field

The invention relates to the technical field of flushing vehicles, in particular to a multifunctional flushing vehicle.

Background

The road administration guardrail generally sets up in the middle of the road, can play the divided effect, can separate the lane of equidirectional not, can also play the function of stopping simultaneously, and then has improved the security of road, can effectual improvement traffic order. Because the coming and going of vehicle on the road can constantly raise the dust on the road surface, the dust of raising will be attached to on the guardrail, so not only influence the aesthetic property of guardrail, and the dust will constantly adsorb moisture moreover, also makes the guardrail by the dust parcel and be in moist environment, leads to the guardrail to be corroded the damage easily. In order to solve the influence of dust on the guardrail, municipal works usually adopt a flushing vehicle to clean the guardrail regularly. The current operation flow of washing the car generally washes in the guardrail through the watering mechanism that is located locomotive or rear of a vehicle, also has to add the motorcycle type that cleaning roller additionally scrubbed to the guardrail, all has following problem: in order to ensure the normal running of the vehicle, the position of the nozzle part on the sprinkling mechanism is fixed at the head or the tail of the vehicle; influenced by the vehicle angle of travel, the nozzle part often can't be with suitable angle to the guardrail directly spout and wash, can only long-range watering, leads to the guardrail can't be in the effective washing area of nozzle part, and it is relatively poor obviously to wash the effect. At present, the water consumption is increased and the water resource is wasted by increasing the water quantity and the water pressure basically if the nozzle part has enough cleaning effect on the guardrail. In addition, current washing car is mainly with the watering, but along with city construction and road management's requirement promotes gradually, people expect that washing car can be more multi-functional, also possess a tractor serves several purposes promptly: for example, after the guardrail is cleaned, when new vegetation on the roadside is sprayed, atomization water application is obviously better than direct spraying; when narrow areas such as factories, corridors and cells are cleaned, the atomization cleaning effect is higher than that of direct spraying; however, when roads, parks and square pavements in open areas are cleaned, the direct current washing effect is obviously better than the atomization cleaning; for example, the existing flushing vehicle in the market cannot meet the comprehensive requirement of people on road administration water because of incompleteness of the spraying mode, and the design and production of a novel flushing vehicle with multiple functions and multiple spraying modes are urgent requirements of people.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a multifunctional flushing vehicle with reasonable and practical structure, which has simple structure and convenient use, can be used for the close-range direct injection flushing of areas difficult to flush, such as walls, guardrails and the like, and can also effectively ensure the flushing effect; meanwhile, the invention also has two working postures of direct current washing and atomization spraying, thereby being capable of being flexibly selected according to the actual road surface condition on site.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a multi-functional washing car, includes the chassis, arranges the locomotive on the chassis and establishes the carriage of water tank in, its characterized in that: this washing car still includes to arrange at least in the spraying assembly of carriage one side and arrange the atomizing washing components on locomotive or carriage or chassis, wherein:

the spraying assembly comprises a spraying rod extending along the height direction of the carriage, a pipe cavity of the spraying rod is communicated with the water tank, and a nozzle part communicated with the pipe cavity of the spraying rod is arranged on the spraying rod; an upper horizontal rod and a lower horizontal rod horizontally extend from two ends of the spray rod in the vertical spray rod length direction, the upper horizontal rod is vertically hinged to the upper part of the carriage through an upper vertical hinge seat, the lower horizontal rod is vertically hinged to the lower part of the carriage through a lower vertical hinge seat, and hinge axes of the two vertical hinge seats are coaxial with each other, so that the spray rod can generate hinge-type approaching and separating actions relative to corresponding side walls of the carriage; the spraying assembly also comprises a driving source for driving the spray rod to generate the actions;

the atomization washing component comprises a water outlet pipe communicated with the water tank and a preposed component capable of executing spraying and washing operations, the preposed component comprises a preposed water pipe communicated with the pipe cavity of the water outlet pipe, an adjustable spray head is coaxially and rotatably matched on the preposed water pipe, and the axis of the adjustable spray head is vertical to the axis of the preposed water pipe; the front-mounted assembly further comprises a pull rod, one end of the pull rod extends forwards along the axis direction of the adjustable spray head and forms horizontal hinged fit with the adjustable spray head, and the other end of the pull rod extends backwards and is horizontally hinged to the pushing end of the power source, so that the adjustable spray head can be driven to rotate around the axis of the front-mounted water pipe when the pull rod moves axially.

Preferably, the shape of the preposed water pipe is arc-shaped and tubular, the two pipe ends are sealed ends, and the adjustable spray heads are sequentially arranged along the axial direction of the preposed water pipe; the T-shaped plate and the axis of the preposed water pipe are positioned on the same plane, two ends of the transverse plate section of the T-shaped plate are respectively fixed at two pipe ends of the preposed water pipe, and the straight plate section of the T-shaped plate extends backwards to form a fixed end for fixing a power source.

Preferably, the power source is an electric push rod, and the axial length direction of the power source is parallel to the length direction of the straight plate section of the T-shaped plate; the piston rod end of the power source forms a pushing end, and the piston rod end and the pull rod are connected with each other through a joint bearing.

Preferably, the outer wall of the adjustable spray head radially extends downwards to form a hinge lug which is in plug-in type hinge fit with a hinge point at the end of the pull rod.

Preferably, the flushing vehicle also comprises a high-pressure water pump for increasing the water pressure at the outlet of the water outlet pipe; a water filter is arranged on a section of water outlet pipe between the high-pressure water pump and the water tank; the water outlet pipe is a steel wire reinforced hose.

Preferably, the atomization washing assembly is arranged at the rear part of the chassis, and the arc opening of the front water pipe points to the direction of the vehicle head.

Preferably, the driving source is an electric push rod; a thrust rod support and a fixed support are fixed on a chassis at the bottom of the carriage, a lower lead vertical hinge seat is arranged on the fixed support, the rod end of the lower horizontal rod is hinged on the lower vertical hinge seat, and a fixed lug extends forwards along the length direction of the lower horizontal rod; one end of a driving source which is horizontally arranged is vertically hinged on the thrust rod bracket, and the other end of the driving source is vertically hinged on the fixing lug.

Preferably, when the driving source is in a contraction process, the spray rod generates a hinged swinging action towards the tail direction of the carriage; in the overlooking direction, the included angle between the axis of the lower horizontal rod and the side wall of the carriage is 27 degrees.

Preferably, a water inlet communicated with a pipe cavity of the spray rod is arranged on the lower horizontal rod, and the water inlet and the water tank are communicated with each other through a drain pipe; the water discharge pipe is provided with a pressure pump for pressurizing.

Preferably, the upper horizontal rod, the lower horizontal rod and the spray rod form a group of spraying assemblies, and the axes of the nozzle parts are positioned on the plane where the spraying assemblies are positioned; the nozzle parts are wide-angle fan-shaped nozzles, and the nozzle parts are uniformly distributed on the spray rod in sequence along the height direction of the carriage.

The invention has the beneficial effects that:

1) The technical scheme is as follows: on one hand, the invention abandons the traditional flushing vehicle structure that the spraying assembly is arranged at the head or the tail of the vehicle, and moves the spraying assembly to one side or two sides of the carriage, and matches with the hinged structure and the corresponding driving source, thereby realizing the on-line adjustment and the direct spraying function of the spraying angle of the nozzle part on the spraying assembly. Specifically, when the water tank supplies water to the spray rod, high-pressure water is directly sprayed through the nozzle part at the spray rod, and the carriage is originally closest to objects to be washed, such as guardrails, walls and the like, when the carriage travels, so that the effective washing area of the nozzle part can completely cover the guardrails and the walls, and finally, the high-efficiency washing function of dirt at the areas difficult to wash, such as the guardrails and the walls, is realized under the required water pressure. On the other hand, the invention provides water source by the water tank through carrying the atomization washing component, the water outlet pipe provides a water outlet path, the commercially available adjustable spray head realizes the online adjustment of modes such as atomization, direct current washing and the like, and the power source provides the adjustable spray head with a reasonable spray angle. When the atomizing sprayer is actually used, water can be atomized through the adjustable spray head and sprayed out at high pressure to form atomized water vapor clusters which spread in a flat spreading manner at high speed, so that the large-range atomizing spraying effect is achieved; the adjustable spray head can rotate downwards by the linkage of the power source and the pull rod, and the spray nozzle of the adjustable spray head can spray direct water flow to approach the road surface or even the wall at a proper angle when working, so that a short-distance impact effect is generated, a high-pressure water curtain is directly sprayed by the linear surface of the bundling belt, the purpose of high-efficiency washing is realized, and the effect is obvious.

2) As the further preferred scheme of above-mentioned scheme, for promoting the atomizing and spraying effect, leading water pipe preferred is the arc tubulose that both ends are sealed. The front water pipe with the arc-shaped pipe structure ensures that atomized water drops are easier to spread in a wide angle; meanwhile, the preposed water pipe is of a structure with two ends sealed, so that the water pressure can be accumulated and stored in the preposed water pipe conveniently, and good intracavity pressure is formed to ensure the atomization and direct-current flushing effects. Certainly, during the in-service use, also can directly cooperate the high pressure water pump to further promote out liquid pressure to cooperate the water filter to promote the actual life of adjustable shower nozzle, just will not describe here again.

3) The arc mouth of the front water pipe points to the direction of the vehicle head, so that dust and garbage at the road surface or even at the wall and the like are gathered together from two sides to the middle part by the arc water curtain formed by the front water pipe, and the dust and the garbage can not be sputtered outwards, thereby ensuring the flushing effect and improving the flushing efficiency. Meanwhile, when stubborn attachments on the road surface are cleaned, the arc-shaped water curtain with the arc mouth pointing to the direction of the vehicle head can also play a multi-angle cladding type direct spraying removing effect, and the effect is very obvious.

4) The hinged swinging motion of the adjustable spray head is realized along with the power propelling and retracting motion of the electric push rod. In practical use, the electric push rod can also use a cylinder, a crank-slider mechanism or a rack-and-pinion mechanism; the electric push rod is adopted, because the current cleaning vehicle and the like tend to be electric energy, and the electric push rod working by using a power supply is obviously more beneficial to practical use. The driving source adopts electric putter like the reason, and power comes from the self-carrying power of washing car to guarantee its simple operation nature and price/performance ratio.

5) And for the pull rod, the front end of the pull rod is hinged to a hinge lug of the adjustable spray head, and the rear end of the pull rod is hinged to be matched with the electric push rod through a joint bearing so as to achieve the purpose of power transmission of the electric push rod. When the plurality of groups of pull rods act simultaneously, the knuckle bearing can well realize the stable power transmission function at multiple angles so as to ensure the accurate angle adjustment effect of each adjustable spray head.

6) Due to the special hinged state of the spraying assembly, the spray rod can be far away from the carriage when in work, namely relatively close to the guardrail or the wall to wait for the object to be washed; when a normal vehicle runs, the spray rod can be retracted, so that the spray rod is close to the carriage as far as possible, and the running safety of the vehicle is guaranteed. When the spray rod extends out, the overlong spray rod is not suitable to be selected in consideration of the width of the whole vehicle, so that the use of the whole vehicle is not influenced; meanwhile, when the spray rod is retracted, the spray nozzle cannot exceed the width of the vehicle body too much, and the size of the spray rod needs to be fixed in a comprehensive consideration. Further, since the stroke is 30mm and the nozzle rod size is constant by the drive source control, the opening and closing angle of 27 ° to 90 ° is preferably the maximum opening and closing angle when there is no interference. The drive source is at 27 ° when fully extended, 90 ° when fully retracted, and 90 ° for optimal cleaning angle.

7) In order to ensure the adjustability of the injection angle of the nozzle part and ensure that the effective washing area of the nozzle part always covers the object to be washed, the axis of the nozzle part is positioned on the plane of the spraying assembly. Therefore, when the spray rod is in a state of being most far away from the carriage, the included angle between the axis of the lower horizontal rod and the side wall of the carriage is 90 degrees, the nozzle part just penetrates the object to be washed directly, and the washing power and efficiency can be effectively guaranteed.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is an enlarged view of a portion II of FIG. 1;

FIG. 3 is a front view of FIG. 1;

FIG. 4 is a top view of FIG. 1;

fig. 5 and 6 are schematic diagrams illustrating the matching relationship among the thrust rod bracket, the fixing bracket, the driving source and the lower horizontal rod at two different viewing angles;

FIG. 7 is a schematic view of the engagement of the cistern and the atomizing flush assembly;

fig. 8 is a partially enlarged view of a portion I of fig. 7.

The actual correspondence between each label and the part name of the invention is as follows:

10-water tank 20-water outlet pipe

30-prepositive component 31-prepositive water pipe 32-adjustable spray head 32 a-hinged lug

33-pull rod 34-power source 35-T-shaped plate 36-reinforcing rib

40-high pressure water pump 50-water filter

60-chassis 61-thrust rod bracket 62-fixing bracket

70-carriage 80-spraying assembly

81 a-spray bar 81 b-upper horizontal bar 81 c-lower horizontal bar

81 d-water inlet 81 e-fixing lug

82-nozzle part 83 a-upper vertical hinged seat 83 b-lower vertical hinged seat 84-driving source

90-vehicle head

Detailed Description

For ease of understanding, the specific construction and operation of the invention is described further herein as follows:

the specific implementation structure of the present invention can be seen with reference to fig. 1 to 8, and the main structure thereof includes a chassis 60, a vehicle head 90 arranged on the chassis 60, and a vehicle compartment 70 located behind the vehicle head 90. Taking the specific structure of fig. 1 as an example, the spraying assemblies 80 are arranged in two groups and symmetrically arranged at two sides of the carriage 70. In operation, either one of the spray assemblies 80 is driven individually by the independent drive sources 84, or both spray assemblies are driven simultaneously by one of the drive sources 84, and the respective spray assemblies 80 are able to pivot about the respective upper and lower plumb hinged

seats

83a, 83b as shown in fig. 1-4. Meanwhile, as an external hanging part, the atomization washing component can be carried on the vehicle head 90 or the carriage 70 or the chassis 60, so that the online cleaning effect on the road surface and even the wall can be synchronously realized. Wherein:

1. spray assembly

The spray assembly 80 includes an upper horizontal rod 81b, a spray bar 81a, and a lower horizontal rod 81c, which are finally combined to form a rod structure resembling a "U". After the two ends of the spraying assembly 80 are hinged by two groups of vertical hinge seats which are coaxial with the spraying assembly and are arranged up and down, the fixing lug 81e at the lower horizontal rod 81c can be pushed by the driving source 84 assembled on the thrust rod bracket 61; at this time, the lower horizontal rod 81c is hinged to the lower vertical hinged seat 83b of the fixed bracket 62 as shown in fig. 5-6, so that the whole spraying assembly 80 can generate the hinged swinging motion within the designated range of 27 ° to 90 °.

When the spraying assembly 80 is actually operated, water is supplied from the water tank 10, and when the water is pressurized by the pressure pump, the water is introduced into the water inlet 81d at the lower horizontal rod 81c through the water discharge pipe, and then the water is discharged from the nozzle portion 82 at the spray rod 81 a. The rotation angle of the spray bars 81a on both sides of the vehicle compartment 70 shown in fig. 1 is controlled by the drive source 84; in a specific design, the stroke of the drive source 84 is 30mm, and when fully retracted, it does not interfere with the side walls of the carriage 70, and the angle a shown in fig. 4 is 27 °. When the driving source 84 is completely extended, the angle a is 90 degrees, and at the moment, the high-pressure water flow sprayed by the nozzle 82 at the spray rod 81a can be used for cleaning areas which are difficult to clean, such as walls, guardrails and the like, so that the use is convenient, and the environment can be kept clean.

2. Atomization washing component

The atomization washing component is preferably assembled on the bottom surface of the chassis 60 and can be arranged at the front or the rear part of the chassis 60, and the atomization washing function can be realized only on the premise of not interfering the normal work of adjacent parts.

More specifically, as shown in fig. 7-8, the atomizing and flushing assembly includes a water outlet pipe 20, and a water filter 50, a high pressure water pump 40 and a front-end assembly 30 are sequentially disposed on the water outlet pipe 20 along the flow direction of the water. Wherein:

the front assembly 30 is illustrated in outline with reference to fig. 7, and includes a crossbow-like configuration formed by a T-shaped plate 35 and a front water tube 31. The high-pressure water pump 40 is installed on the upper plate surface of the tail end of the T-shaped plate 35, the front end of the T-shaped plate 35, namely the transverse plate section, is fixedly provided with the arc-shaped tubular preposed water pipe 31, and the water outlet of the water outlet pipe 20 is communicated with the middle pipe body of the preposed water pipe 31. For the transverse plate section, two ends of the transverse plate section are directly fixed at two pipe ends of the preposed water pipe 31, and the plate body of the transverse plate section is connected with the pipe body of the preposed water pipe 31 through a reinforcing rib 36 so as to ensure the structural rigidity. The front water pipe 31 is sequentially and rotatably matched with a plurality of groups of adjustable nozzles 32, and the adjustable nozzles 32 can realize the switching of the water outlet mode, such as the free switching between the atomization mode and the direct current injection mode.

Further, as shown in fig. 8, a hinge lug 32a is extended radially downward from the adjustable nozzle 32 to match the front end of the pull rod 33, and the rear end of the pull rod 33 is extended rearward and fixed to a power source 34 at the lower plate surface of the rear end of the T-shaped plate 35. In practice, the power source 34 preferably uses an electric push rod and is articulated to the coupling rod 33 by means of a knuckle bearing.

To facilitate a further understanding of the atomizing flush assembly, the actual workflow of the atomizing flush assembly is given herein as follows:

first, water in the water tank 10 enters the water filter 50 through the water outlet pipe 20 of the wire reinforced hose structure for purification, and then is pressurized by the high pressure water pump 40 to form a high pressure water flow. The high-pressure water pipe enters the pipe cavity of the preposed water pipe 31 for corrosion prevention and waterproof treatment; because the preposed water pipe 31 is in a relative sealing state with two closed pipe ends, the pipe cavity of the preposed water pipe 31 can form good pressure in the pipe cavity. Then, the adjustable nozzle 32 atomizes the water and sprays the water at high pressure to form atomized water vapor cluster which is diffused at a wide angle and high speed, thereby achieving the effect of large-scale spraying. Or by the retracting action of the power source 34, that is, the electric push rod, the linkage pull rod 33 rotates the adjustable spray heads 32 counterclockwise, and adjusts the adjustable spray heads 32 to switch to the direct current spray mode, at this time, the adjustable spray heads 32 are combined with each other to form an arc direct water curtain with a high-pressure sector arc mouth pointing to the direction of the vehicle head 90, so as to achieve the centralized direct current flushing effect.

In fact, when the atomizing washing machine is used specifically, the T-shaped plate 35 can be installed at any position of the vehicle body, and can be matched with mechanical arms and the like, so that the atomizing washing purpose of objects such as pavements, walls and even steps can be achieved more flexibly. In addition, the atomization flushing component is a vehicle-mounted device, so that the atomization flushing component can also be used as an independent external component which can be additionally hung, can be installed on the atomization flushing component and other sanitation vehicles, and can synchronously meet the requirements of atomization spraying and high-pressure flushing. The whole atomization flushing component is small in size, high in atomization degree, long in spraying distance and high in cleaning force, can be used for direct injection flushing of pavements such as roads, parks, squares and cells, can also be suitable for atomization spraying operation of narrow closed areas such as plants, corridors and houses, can save a large number of personnel, and is efficient and stable in work.

It will, of course, be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

The techniques, shapes, and configurations not described in detail in the present invention are all known techniques.

Claims

1. The utility model provides a multi-functional washing car, includes chassis (60), arranges locomotive (90) on the chassis and establishes carriage (70) of water tank (10) in, its characterized in that: the washing vehicle further comprises a spraying assembly (80) arranged at least on one side of the carriage (70) and an atomizing washing component arranged on the vehicle head (90) or the carriage (70) or the chassis (60), wherein:

the spraying assembly (80) comprises a spraying rod (81 a) extending along the height direction of the carriage (70), a pipe cavity of the spraying rod (81 a) is communicated with the water tank (10), and a nozzle part (82) communicated with the pipe cavity of the spraying rod (81 a) is arranged on the spraying rod (81 a); an upper horizontal rod (81 b) and a lower horizontal rod (81 c) horizontally extend from two ends of the spray rod (81 a) in the rod length direction of the vertical spray rod (81 a), the upper horizontal rod (81 b) is vertically hinged to the upper part of the carriage (70) through an upper vertical hinge seat (83 a), the lower horizontal rod (81 c) is vertically hinged to the lower part of the carriage (70) through a lower vertical hinge seat (83 b), and the hinge axes of the two vertical hinge seats are coaxial with each other, so that the spray rod (81 a) can generate hinged approaching and separating actions relative to the corresponding side wall of the carriage (70); the spraying assembly (80) further comprises a driving source (84) for driving the spray rod (81 a) to generate the action;

the atomization washing component comprises a water outlet pipe (20) communicated with the water tank (10) and a front component (30) capable of performing spraying and washing operations, the front component (30) comprises a front water pipe (31) communicated with a pipe cavity of the water outlet pipe (20), an adjustable spray head (32) is coaxially matched on the front water pipe (31) in a rotating mode, and the axis of the adjustable spray head (32) is perpendicular to the axis of the front water pipe (31); the front-mounted assembly (30) further comprises a pull rod (33), one end of the pull rod (33) extends forwards along the axial direction of the adjustable spray head (32) and forms horizontal hinged fit with the adjustable spray head, and the other end of the pull rod (33) extends backwards and is horizontally hinged to the propelling end of the power source (34), so that the adjustable spray head (32) can be driven to rotate around the axis of the front-mounted water pipe (31) when the pull rod (33) moves axially;

the shape of the preposed water pipe (31) is arc-shaped and tubular, the two pipe ends are sealed ends, and all adjustable spray heads are sequentially arranged along the axial direction of the preposed water pipe (31); the axes of the T-shaped plate (35) and the preposed water pipe (31) are positioned on the same plane, two ends of a transverse plate section of the T-shaped plate (35) are respectively fixed at two pipe ends of the preposed water pipe (31), and a straight plate section of the T-shaped plate (35) extends backwards to form a fixed end for fixing a power source (34);

the arc opening of the front water pipe (31) points to the direction of the vehicle head (90).

2. A multi-purpose washing vehicle as defined in claim 1, wherein: the power source (34) is an electric push rod, and the axial length direction of the power source (34) is parallel to the length direction of the straight plate sections of the T-shaped plate (35); the piston rod end of the power source (34) forms a pushing end, and the piston rod end and the pull rod (33) are connected with each other through a joint bearing.

3. A multi-purpose washing vehicle as defined in claim 2, wherein: the outer wall of the adjustable spray head (32) is radially and downwardly extended with a hinge lug (32 a) so as to form pin shaft plug-in type hinge fit with a hinge point at the end part of the pull rod (33).

4. A multipurpose washing vehicle as claimed in claim 1, 2 or 3, characterised in that: the washing vehicle also comprises a high-pressure water pump (40) for increasing the water pressure at the outlet of the water outlet pipe (20); a water filter (50) is arranged on a section of the water outlet pipe (20) between the high-pressure water pump (40) and the water tank (10); the water outlet pipe (20) is a steel wire reinforced hose.

5. A multi-purpose washing vehicle as defined in claim 2 or 3, wherein: an atomizing wash assembly is disposed rearward of the chassis (60).

6. A multipurpose washing vehicle as claimed in claim 1, 2 or 3, characterised in that: the driving source (84) is an electric push rod; a thrust rod support (61) and a fixed support (62) are fixed on a chassis (60) at the bottom of the carriage (70), a lower lead vertical hinged seat (83 b) is arranged on the fixed support (62), the rod end of a lower horizontal rod (81 c) is hinged on the lower lead vertical hinged seat (83 b), and a fixed lug (81 e) extends forwards from the rod end of the lower horizontal rod (81 c) along the rod length direction of the lower horizontal rod (81 c); one end of a driving source (84) which is horizontally arranged is vertically hinged on the thrust rod bracket (61), and the other end is vertically hinged on the fixed lug (81 e).

7. A multi-purpose washing vehicle as defined in claim 6, wherein: when the driving source (84) is in the contraction process, the spray rod (81 a) generates hinged swinging motion towards the tail direction of the carriage (70); in the top view direction, the included angle between the axis of the lower horizontal rod (81 c) and the side wall of the carriage (70) is 27 degrees.

8. A multipurpose washing vehicle as claimed in claim 1, 2 or 3, characterised in that: a water inlet (81 d) communicated with a pipe cavity of the spray rod (81 a) is arranged on the lower horizontal rod (81 c), and the water inlet (81 d) and the water tank (10) are communicated with each other through a water drainage pipe; the water discharge pipe is provided with a pressure pump for pressurizing.

9. A multipurpose washing vehicle as claimed in claim 1, 2 or 3, characterised in that: the upper horizontal rod (81 b), the lower horizontal rod (81 c) and the spray rod (81 a) form a group of spraying assemblies, and the axes of the nozzle parts (82) are positioned on the plane where the spraying assemblies are positioned; the nozzle parts (82) are wide-angle fan-shaped nozzles, and the nozzle parts (82) are sequentially and uniformly distributed on the spray rod (81 a) along the height direction of the carriage (70).