CN217480057U

CN217480057U - Sanitation cleaning vehicle

Info

Publication number: CN217480057U
Application number: CN202220383766.2U
Authority: CN
Inventors: 彭稳; 朱铮; 燕连杰
Original assignee: Shanghai Xire Energy Automobile Co ltd
Current assignee: Shanghai Xire Energy Automobile Co ltd
Priority date: 2022-02-23
Filing date: 2022-02-23
Publication date: 2022-09-23
Anticipated expiration: 2032-02-23

Abstract

The utility model discloses a sanitation washs car, including vehicle chassis, high-pressure water spray frame, water pitcher and power pack, vehicle chassis's driving motor installs on the transaxle, the high-pressure water spray frame sets up between the front axle and the rear axle of vehicle, power pack connects vehicle chassis's lower extreme. The utility model discloses a sanitation washs car for whole car arranges compacter, and the overhang reduces, and the angle of approach increase has improved the trafficability characteristic of whole car, has reduced vehicle weight.

Description

Sanitation cleaning vehicle

Technical Field

The utility model relates to a belt cleaning device technical field, in particular to sanitation washs car.

Background

A sanitation cleaning vehicle is characterized in that road stains are cleaned by adopting a high-pressure cleaning or low-pressure cleaning method, road garbage is flushed to two sides and mixed with a large amount of water to flow into a sewer, and the garbage flushed to the two sides of a road is convenient for the subsequent mechanical operation of the cleaning vehicle. The cleaning vehicle also has multiple functions of greening spraying, pesticide spraying, spraying dust settling, water sprinkling, self-absorption, fire fighting and the like, is the largest in use quantity in environmental sanitation machinery, and is one of vehicles with the largest preservation quantity in the current environmental sanitation market.

The structure of the existing cleaning vehicle is shown in fig. 1, and the existing cleaning vehicle comprises an automobile chassis 01, a guard rail device 02, a high-pressure front water spraying frame 03, a water tank 04, a power unit 05, a rear platform 06, a low-pressure water channel 07 and a power cover 08, wherein the high-pressure front water spraying frame 03 is positioned in front of a vehicle cab, and can adopt an air cylinder or a hydraulic oil cylinder to perform up-and-down and left-and-right swinging actions so as to meet the requirements of daily vehicle running and operation. The driving motor of the vehicle chassis 01 needs to transmit power to the wheels through a transmission shaft arranged at the lower end of the vehicle chassis 01, and therefore, the lower end of the vehicle chassis 01 is not provided with a space for arranging the water spray frame.

The high-pressure front water spraying frame 03 is positioned in front of the cab, so that the front overhang of the vehicle is long, the approach angle of the vehicle is reduced, and the trafficability characteristic is poor. The driver needs to use the blind repair mirror to observe the operation condition of the high-pressure front water spraying frame 03, and because the visual field is limited, the high-pressure front water spraying frame is easy to collide with roads, barriers and the like during operation, driving and steering, and the damage is caused. The power cover 08 is arranged in front of the water tank 04 and plays a role of covering the power unit 05, so that the occupied arrangement space is large, and the compactness of the cleaning vehicle is poor.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a sanitation washs car for whole car arranges compacter, and the front overhang reduces, and the angle of approach increases, has improved the trafficability characteristic of whole car, has reduced vehicle weight.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a sanitation washs car, includes vehicle chassis, high pressure water spray frame, water pitcher and power pack, vehicle chassis's driving motor installs on the transaxle, the high pressure water spray frame sets up between the front axle and the rear axle of vehicle, power pack connects vehicle chassis's lower extreme.

Optionally, the high-pressure water spray frame comprises a middle spray rod, a first side spray rod and a second side spray rod, and the first side spray rod and the second side spray rod are respectively arranged on two sides of the middle spray rod;

well spray lance fixed connection is in on the spray lance mount, first side spray lance and second side spray lance all rotate to be connected in on the spray lance mount.

Optionally, the first side spray rod is fixedly connected to a spray rod mounting plate, the spray rod mounting plate is rotatably connected to an obstacle avoidance rotating seat, and the obstacle avoidance rotating seat is rotatably connected to the spray rod fixing frame;

the obstacle avoidance rotating seat is rotatably connected with the rod end of the side spray rod cylinder through a connecting rod mechanism.

Optionally, the link mechanism includes a connecting rod and an air cylinder push rod which are connected in a rotating manner, one end of the air cylinder push rod is connected to the spray rod fixing frame in a rotating manner, the other end of the air cylinder push rod is connected to the side spray rod air cylinder in a rotating manner, the third end of the air cylinder push rod is connected to one end of the connecting rod in a rotating manner, and the other end of the connecting rod is connected to the obstacle avoidance rotating seat in a rotating manner.

Optionally, the spray rod mounting plate further comprises a return spring, and the return spring is arranged on one side of the spray rod mounting plate far away from the side spray rod cylinder;

one end of the reset spring is fixedly connected with the obstacle avoidance rotating seat, and the other end of the reset spring is fixedly connected with the spray rod mounting plate.

Optionally, a limiting bolt is arranged on the obstacle avoidance rotating seat, the limiting bolt is connected to the obstacle avoidance rotating seat through a connecting plate, and the limiting bolt and the return spring are arranged on the same side.

Optionally, a water blocking cover is fixedly connected to the spray rod fixing frame, the water blocking cover is arranged in parallel with the middle spray rod, the length of the middle spray rod is not greater than that of the water blocking cover, the installation positions of the water blocking cover and the middle spray rod correspond to each other, and the water blocking cover is covered above the middle spray rod.

Optionally, the spray rod fixing frame is rotatably connected with the water spraying connecting frame through a lifting connecting rod, and the water spraying connecting frame is rotatably connected with the water spraying frame fixing mounting plate through a rotating shaft.

Optionally, the water spraying connection frame is rotatably connected with one end of a lifting cylinder through a support frame, and the other end of the lifting cylinder is rotatably connected to the spray rod fixing frame.

Optionally, one end of each swing cylinder is rotatably connected to the water spraying frame fixing mounting plate, two swing cylinders are provided, and the two swing cylinders are horizontally arranged on two sides of the rotating shaft;

and one end of the swing cylinder, which is far away from the water spraying frame fixing and mounting plate, is rotatably connected to the spray rod fixing frame.

According to the technical scheme, the utility model provides a sanitation washs car adopts pure electric vehicles chassis, and main motor direct mount that drives has cancelled the common transmission shaft part in chassis on the chassis transaxle structurally, therefore has enough to arrange the space and arranges the high pressure water spray frame below the chassis, has realized putting in of high pressure water spray frame. The middle high-pressure water spraying frame enables the whole vehicle to be more compact in arrangement, the front overhang is reduced, the approach angle is increased, the turning radius of the vehicle is reduced, and the trafficability characteristic of the whole vehicle is improved. The high-pressure water pump is arranged on the rear lower part of the chassis, a power cover cap of the high-pressure water pump arranged at the front end of the water tank in the prior art is omitted, the weight of a vehicle is reduced, the volume of the tank body of the water tank is larger, and the continuous operation time of the whole vehicle is prolonged.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of a prior art sanitation vehicle;

fig. 2 is a schematic structural view of the sanitation cleaning vehicle provided by the embodiment of the present invention;

fig. 3 is a schematic structural view of a high-pressure water spraying frame provided by an embodiment of the present invention;

FIG. 4 is a partially enlarged view of the portion A in FIG. 3;

FIG. 5 is a partial enlarged view of the portion B in FIG. 3;

fig. 6 is a partial schematic structural view of another angle of the first side spray bar position provided by the embodiment of the present invention;

FIG. 7 is a partial enlarged view of the portion C in FIG. 6;

fig. 8 is a schematic view illustrating the retraction effect of the first side spray bar according to the embodiment of the present invention;

fig. 9 is a schematic view of an initial position of a high pressure water spraying frame according to an embodiment of the present invention;

fig. 10 is a schematic view of a position of the high pressure water spraying frame according to an embodiment of the present invention after swinging by an angle.

Wherein:

1. the chassis of the automobile is provided with a plurality of wheels,

2. a protective guard is arranged on the protective guard,

3. a high-pressure water spraying frame is arranged,

301. a water retaining cover 302, a first hoop 303, a first side spray rod 304, a lifting connecting rod 305, a water spray rack fixing and mounting plate 306, an obstacle avoidance rotating seat 307, a connecting rod 308, a cylinder push rod 309, a spray rod fixing frame 310, a side spray rod cylinder 311, a cylinder mounting seat 312, a swing cylinder 313, a water spray connecting frame 314, a rotating shaft 315, a lifting cylinder 316, a second side spray rod 317, a spray rod mounting plate 318, a reset spring 319, a limit bolt 320, a second hoop 321, a middle spray rod 322 and a spring support,

4. a water tank is arranged on the top of the water tank,

5. a power unit, a power unit and a power unit,

6. the back platform is provided with a back platform,

7. a low pressure water circuit.

Detailed Description

The utility model discloses a sanitation washs car for whole car arranges compacter, and the front overhang reduces, and the angle of approach increase has improved the trafficability characteristic of whole car, has reduced vehicle weight.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 2 and 7, the sanitation vehicle of the present invention includes a vehicle chassis 1, a high pressure water spraying frame 3, a water tank 4 and a power unit 5. A driving motor of an automobile chassis 1 is installed on a drive axle of an automobile, a high-pressure water spraying frame 3 is arranged between a front shaft and a rear shaft of the automobile, and a power unit 5 is connected to the lower end of the automobile chassis 1.

The power unit 5 is a power system of the cleaning system, and specifically comprises a high-pressure water pump, a high-pressure water delivery pipeline and other components used in a matched manner, wherein the high-pressure water pump provides high-pressure water for the high-pressure water spray frame 3 through the high-pressure water delivery pipeline. The automobile chassis 1 is an electric automobile chassis. Guard rails 2 are arranged on two sides of the automobile chassis 1. Wherein, power unit 5 sets up the lower extreme at back platform 6, and low pressure water route 7 sets up on back platform 6, and back platform 6 is the same with the structure on the current washing car with low pressure water route 7, no longer gives unnecessary details to the structure of the two.

The utility model discloses a sanitation washs car adopts pure electric vehicles chassis, and main drive motor direct mount has cancelled the common transmission shaft part in chassis on the chassis transaxle structurally, therefore has sufficient space of arranging to arrange high-pressure water spray frame 3 below the chassis, has realized putting of high-pressure water spray frame 3. The middle high-pressure water spraying frame 3 enables the whole vehicle to be more compact in arrangement, the front overhang is reduced, the approach angle is increased, the turning radius of the vehicle is reduced, and the trafficability characteristic of the whole vehicle is improved. The high-pressure water pump is arranged at the rear lower part of the chassis, a power cover 08 of the high-pressure water pump arranged at the front end of the water tank 4 in the prior art is omitted, the weight of a vehicle is reduced, the volume of the tank body of the water tank 4 is larger, and the continuous operation time of the whole vehicle is prolonged.

Specifically, referring to fig. 3 to 7, the high pressure water jet rack 3 includes a middle spray bar 321, a first side spray bar 303, and a second side spray bar 316, the first side spray bar 303 and the second side spray bar 316 being provided on both sides of the middle spray bar 321. It will be appreciated that the first side spray bar 303, the second side spray bar 316 and the middle spray bar 321 are provided with nozzles which are the same as in the prior art and will not be described in detail here. The first side spray bar 303, the second side spray bar 316 and the middle spray bar 321 are respectively connected with independent high-pressure water pipelines to avoid mutual influence, so that one or both of the first side spray bar 303, the second side spray bar 316 and the middle spray bar 321 can be controlled to work according to needs. The specific control method is a method commonly used in the prior art.

Further, middle spray bar 321 is fixedly attached to spray bar mount 309, as shown in fig. 6, first side spray bar 303 and second side spray bar 316 are both rotatably attached to spray bar mount 309. Specifically, the first side spray bar 303 and the second side spray bar 316 are respectively provided at both ends of the spray bar fixing frame 309. Specifically, the middle spray bar 321 is fixedly connected to the spray bar fixing frame 309 through the second anchor ear 320.

In an embodiment, referring to fig. 4 and 6, the first side spray bar 303 is fixedly connected to the spray bar mounting plate 317, the spray bar mounting plate 317 is rotatably connected to the obstacle avoidance rotating base 306, so that the side spray bar is prevented from being damaged when the first side spray bar 303 encounters a forward resistance due to the fact that the spray bar is too wide and touches an obstacle in the working process, and the first side spray bar 303 rotates around the obstacle avoidance rotating base 306 so as to avoid the obstacle and protect the first side spray bar 303.

Wherein, the obstacle avoidance rotating base 306 is rotatably connected to the boom fixing frame 309. The spray bar mounting plate 317 is connected on keeping away barrier roating seat 306 through the round pin hub rotation, and first side spray bar 303 is through first staple bolt 302 fixed connection on spray bar mounting plate 317, and this kind of structure setting drives the spray bar mounting plate 317 that sets up on it and rotates when keeping away barrier roating seat 306 and rotating to fixed connection is also synchronous rotation at the first side spray bar 303 on spray bar mounting plate 317.

In order to control the folding and unfolding of the first side spray rod 303, the obstacle avoidance rotary seat 306 is rotatably connected with the rod end of the side spray rod cylinder 310 through a link mechanism.

Specifically, the linkage mechanism includes a connecting rod 307 and a cylinder rod 308 that are rotatably connected. One end of the cylinder push rod 308 is rotatably connected to the end of the spray rod fixing frame 309, the other end of the cylinder push rod is rotatably connected to the side spray rod cylinder 310, the third end of the cylinder push rod is rotatably connected to one end of the connecting rod 307, and the other end of the connecting rod 307 is rotatably connected to the obstacle avoidance rotating base 306. As shown in fig. 6, the cylinder pushrod 308 is a Y-shaped rod so that there are three ends for connection. The spray rod fixing frame 309, the cylinder push rod 308, the connecting rod 307 and the obstacle avoidance rotating seat 306 are connected to form a four-bar mechanism, the side spray rod cylinder 310 drives the cylinder push rod 308 to rotate, so that the obstacle avoidance rotating seat 306 is driven to rotate through the connecting rod 307, the obstacle avoidance rotating seat 306 drives the first side spray rod 303 arranged on the obstacle avoidance rotating seat to rotate, and the purpose of obstacle avoidance is achieved. Side boom cylinder 310 is connected to boom mount 309 through cylinder mount 311. When the piston rod of side spray bar cylinder 310 extends, first side spray bar 303 is rotated to swing out and retract, as shown in fig. 8 for retracting first side spray bar 303, and as shown in fig. 6 for swinging out first side spray bar 303.

In order to return the first side spray bar 303 after the obstacle avoidance rotation, a return spring 318 for returning the first side spray bar 303 to the position before the obstacle avoidance is provided, as shown in fig. 7. The return spring 318 is disposed on a side of the boom mounting plate 317 remote from the side boom cylinder 310, and in particular, the return spring 318 is located on a side near the head of the vehicle. Wherein, one end of the return spring 318 is fixedly connected with the obstacle avoidance rotating seat 306 through the spring support 322, and the other end is fixedly connected with the spray bar mounting plate 317.

Further, in order to ensure the position reliability of the first side spray rod 303 after avoiding the obstacle and returning, a limit bolt 319 is arranged on the obstacle avoidance rotating seat 306. The limit bolt 319 is connected to the obstacle avoidance rotating base 306 through a connecting plate, and it can be understood that the limit bolt 319 and the return spring 318 are disposed on the same side. In order to facilitate adjustment of the limit position of the limit bolt 319, the limit bolt 319 is screwed to the connecting plate, and is positioned by a nut screwed to the limit bolt 319.

The specific structure of the connection of second side spray bar 316 to spray bar mount 309 is identical with reference to the connection of first side spray bar 303 to spray bar mount 309.

In order to limit the influence of water spray splashing of the middle spray rod 321 on the service life of the automobile chassis 1, a water retaining cover 301 is fixedly connected to the spray rod fixing frame 309. It can be understood that the water blocking cover 301 is arranged in parallel with the middle spray rod 321, the length of the middle spray rod 321 is not greater than that of the water blocking cover 301, and the installation positions of the water blocking cover and the middle spray rod 321 correspond to each other, and the water blocking cover 301 is covered above the middle spray rod 321 so as to prevent water sprayed from the middle spray rod 321 from splashing on parts of the automobile chassis 1.

In order to adjust the height position of the spray bar of the high-pressure spray rack 3, as shown in fig. 5, the spray bar fixing frame 309 is rotatably connected to a spray link 313 through a lifting link 304, and the spray link 313 is rotatably connected to the spray bar fixing mounting plate 305 through a rotating shaft 314. The spray frame fixing mounting plate 305 is used for structural connection with the high-pressure spray frame 3 of the automobile chassis 1. One end of a lifting cylinder 315 is rotatably connected to the water spraying connecting frame 313 through a support frame, and the other end of the lifting cylinder 315 is rotatably connected to the boom fixing frame 309. In this way, the rod end of the lifting cylinder 315 extends and retracts, and the boom fixing frame 309 is controlled to rotate around the shaft connecting the lifting connecting rod 304 and the water spraying connecting frame 313, so that the height position of the component connected to the lifting connecting rod 304 is adjusted, and the component comprises the boom fixing frame 309 and various structures connected to the boom fixing frame 309. The lifting cylinder 315 is installed at the lifting point of the spray rod fixing frame 309, so that the high-pressure water spray frame 3 can be lifted to a certain height, and the passing performance of the vehicle during non-operation running is ensured.

Specifically, the two lifting cylinders 315 are arranged in parallel, and a control method for cooperative work of the two lifting cylinders 315 is the prior art.

In order to swing the spray bar of the high-pressure spray frame 3 in the horizontal position, one end of a swing cylinder 312 is rotatably connected to the spray frame fixing mounting plate 305. The two swing cylinders 312 are horizontally arranged on two sides of the rotating shaft 314, so that the water spraying connecting frame 313 rotates around the rotating shaft 314 under the action of the swing cylinders 312, the horizontal swing of the water spraying connecting frame 313 is realized, and further, the swing of all components connected to the water spraying connecting frame 313 is driven. It will be appreciated that the end of the swing cylinder 312 remote from the spray bar mounting plate 305 is pivotally attached to the spray bar mounting bracket 309. The control method for the cooperative operation of the two oscillating cylinders 312 is the prior art. As shown in fig. 9, the high pressure water spraying frame 3 is a schematic diagram before swinging, in this case, the middle spraying rod 321 is arranged perpendicular to a central axis of the automobile, where the central axis of the automobile refers to an axis from the head to the tail of the automobile. As shown in fig. 10, the high pressure water spraying frame 3 is shown after swinging, and at this time, the middle spraying rod 321 is disposed non-perpendicularly to the central axis of the automobile, and an acute included angle α exists.

The utility model discloses a sanitation washs car has arranged the high-pressure water spray frame 3 of putting in for whole car arranges compacter, and the overhang reduces greatly, and the angle of approach increases, and the trafficability characteristic obtains great improvement. Meanwhile, the operation of daily operation of the cleaning vehicle is convenient, and a driver can conveniently observe the cleaning operation condition through a reflector, a camera and the like through the middle high-pressure water spraying frame 3, so that the phenomenon that the front water spraying frame in the prior art has a visual field blind area is avoided, the collision between a working device and a road edge and a barrier is effectively avoided, and the working device is protected.

In the description of the present solution, it should be understood that the terms "upper", "lower", "vertical", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present solution.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a sanitation washs car, includes vehicle chassis (1), high-pressure water spray frame (3), water pitcher (4) and power pack (5), its characterized in that, vehicle chassis's (1) driving motor installs on the transaxle, high-pressure water spray frame (3) set up between the front axle and the rear axle of vehicle, power pack (5) are connected the lower extreme of vehicle chassis (1).

2. A sanitation vehicle according to claim 1, wherein the high pressure spray carriage (3) comprises a middle spray bar (321), a first side spray bar (303) and a second side spray bar (316), the first side spray bar (303) and the second side spray bar (316) being respectively arranged at two sides of the middle spray bar (321);

the middle spray rod (321) is fixedly connected to a spray rod fixing frame (309), and the first side spray rod (303) and the second side spray rod (316) are rotatably connected to the spray rod fixing frame (309).

3. The environmental sanitation vehicle of claim 2, wherein the first side spray bar (303) is fixedly connected to a spray bar mounting plate (317), the spray bar mounting plate (317) is rotatably connected to an obstacle avoidance rotating base (306), and the obstacle avoidance rotating base (306) is rotatably connected to the spray bar fixing frame (309);

the obstacle avoidance rotating seat (306) is rotatably connected with the rod end of the side spray rod cylinder (310) through a connecting rod mechanism.

4. The environmental sanitation vehicle according to claim 3, wherein the link mechanism comprises a connecting rod (307) and a cylinder push rod (308) which are rotatably connected, one end of the cylinder push rod (308) is rotatably connected to the spray rod fixing frame (309), the other end of the cylinder push rod is rotatably connected to the side spray rod cylinder (310), the third end of the cylinder push rod is rotatably connected to one end of the connecting rod (307), and the other end of the connecting rod (307) is rotatably connected to the obstacle avoidance rotating base (306).

5. The sanitation vehicle of claim 3, further comprising a return spring (318), the return spring (318) being disposed on a side of the boom mounting plate (317) remote from the side boom cylinder (310);

one end of the return spring (318) is fixedly connected with the obstacle avoidance rotating seat (306), and the other end of the return spring is fixedly connected with the spray rod mounting plate (317).

6. The sanitation cleaning vehicle of claim 5, wherein a limit bolt (319) is arranged on the obstacle avoidance rotating base (306), the limit bolt (319) is connected to the obstacle avoidance rotating base (306) through a connecting plate, and the limit bolt (319) and the return spring (318) are arranged on the same side.

7. The sanitation cleaning vehicle according to claim 2, wherein a water retaining cover (301) is fixedly connected to the spray rod fixing frame (309), the water retaining cover (301) is arranged in parallel with the middle spray rod (321), the length of the middle spray rod (321) is not greater than that of the water retaining cover (301), the water retaining cover (301) is arranged above the middle spray rod (321) in a covering mode.

8. The sanitation vehicle of claim 2, wherein the boom fixing frame (309) is rotatably connected with a water spray connecting frame (313) through a lifting connecting rod (304), and the water spray connecting frame (313) is rotatably connected with a water spray frame fixing mounting plate (305) through a rotating shaft (314).

9. The sanitation cleaning vehicle according to claim 8, wherein one end of a lifting cylinder (315) is rotatably connected to the water spray connecting frame (313) through a support frame, and the other end of the lifting cylinder (315) is rotatably connected to the spray bar fixing frame (309).

10. The environmental sanitation vehicle according to claim 8, wherein one end of a swing cylinder (312) is rotatably connected to the water spraying frame fixing mounting plate (305), two swing cylinders (312) are provided, and the two swing cylinders (312) are horizontally arranged at two sides of the rotating shaft (314);

and one end of the swing cylinder (312), which is far away from the water spray frame fixing and mounting plate (305), is rotatably connected to the spray rod fixing frame (309).