KR102356285B1 - Assembly structure of water tank and sprinkler truck - Google Patents

Abstract

The present invention aims to provide an assembly structure of a water tank and a sprinkler truck, which is able to solve the problem of the conventional technology that cannot effectively disperse the load of water applied to a floor surface (110), effectively disperse the load of water applied to the floor surface (110) of the water tank (100), be easily attached to and detached from a vehicle, and have an excellent effect for absorbing vibration by the movement of the vehicle. According to the present invention, the assembly structure of the water tank and the sprinkler truck comprises: the water tank (100); a base frame (200); a fastening unit (300); a watertight unit (400); a pair of first rubber members (500); and a plurality of second rubber members (600). On a lower side of the water tank (100), a support unit (130) is placed, including a plurality of load dispersion units (120) with a cross-section in an arc shape and a plurality of convex units (131) with a cross-section in an arch shape. Therefore, unlike the conventional method which focused the load of the water tank (100) on a corner, the present invention is able to evenly disperse the load to the floor surface (110) of the water tank (100) and the base frame (200) connected to the chassis frame of the vehicle. In addition, since there are the first rubber members (500) placed between the load dispersion unit (120) and both end units of the internal floor surface (110) of the water tank (100), the vibration generated during driving can be absorbed. In addition, since there are the second rubber members (600) placed inside a watertight mainframe (410), the watertight unit (400) can be prevented from being damaged by the load of the water tank (100).

Description

Assembly structure of water tank and sprinkler truck }

The present invention relates to an assembly structure of a water tank and a sprinkler vehicle.

In general, a watering vehicle is a type of specially equipped vehicle that is specially manufactured according to the purpose of use. It stores water in a storage tank mounted on the vehicle, and uses a watering device to It is a vehicle that performs disaster prevention and quarantine work by spraying water to clean, or by spraying a liquid (mixture) mixed with chemicals into a contaminated area.

Republic of Korea Patent No. 10-2059580 (hereinafter referred to as “prior art”) is for a water spraying vehicle and fire engine, which has excellent light weight and durability, and can prevent damage or separation of water tanks due to high loads and vibrations. It relates to an assembly structure of a water tank, wherein the water tank is made of a polypropylene panel, one inclined portion and the other inclined portion are formed on both sides of a bottom surface, an extension is formed in a lower portion of a wall of the water tank, and the extension and the A joint formed by polypropylene welding is formed in the space between one inclined part and the other inclined part of the bottom surface, and one auxiliary frame and the other auxiliary frame are connected to a fixed plate part, one inclined plate part and the other inclined plate part, one horizontal plate and The other side is composed of a flat plate and the water tank is fixed to the chassis frame.

The prior art has a structure in which one inclined part and the other inclined part are inclined upward toward the outside, so that although the load of water is not concentrated on one inclined part and the other inclined part, the load of water applied to the floor cannot be effectively dispersed. There is this.

Republic of Korea Patent Registration No. 10-2059580 (published on December 26, 2019)

The present invention has been devised to solve the problems of the prior art, and it effectively distributes the load of water applied to the bottom surface of the water tank, is easy to attach to and detach from the vehicle, and has excellent vibration absorption effect due to the movement of the vehicle. It is intended to provide an assembly structure of a tank and a water spraying vehicle.

The assembly structure of the water tank and the water spraying vehicle of the present invention includes: a water tank in which a liquid mixed with water or a chemical (hereinafter referred to as “mixed liquid”) is stored; a base frame in which the water tank is fixed to an upper side and is installed to be fixed to a frame of a vehicle in a rectangular flat shape; a plurality of fastening parts passing through a plurality of fastening holes provided on the bottom surfaces of the base frame and the water tank to fix the water tank to the base frame; and a watertight part surrounding one end of the fastening part so that one end of the fastening part does not come into contact with the mixed liquid inside the water tank while the water tank is fixed to the base frame, wherein the water tank has a parabolic cross section a load distributing part provided to be in contact with the bottom surface ( ) of the inside of the water tank and the other part being installed to be separated from the bottom surface to distribute the load of the water tank; and a support part installed between the load distribution part and the bottom surface of the water tank to support the load of the water tank, wherein the support part includes: a plurality of convex parts convexly protruding upward in an arcuate shape; and a connecting part extending outwardly from both ends of each of the plurality of convex parts to connect the convex parts to each other, wherein the size of each of the plurality of convex parts is the height of the space between the load distributing part and the floor surface ( It is determined corresponding to H), and an upper portion of each of the plurality of convex portions abuts on the load distributing portion.

In addition, the fastening portion body is provided with a screw thread on the outer surface; have a larger diameter than the diameter of the body. a head integrally connected to the body at one end of the body; a nut having a hollow formed in the center screwed to the thread of the body at the other end of the body; and an elastic body provided between the lower side of the base frame and the head of the fastening part.

In addition, the watertight part is formed with an open part on the upper side, the lower surface of the watertight body integrally connected to the load distribution unit; and a watertight lid fitted to the upper portion of the watertight body to close the opening to close the watertight portion so that the space inside the watertight portion is watertight from the mixed liquid inside the water tank; and the upper side of both sides of the watertight body is provided with at least one protrusion, and at both ends of one surface of the watertight lid facing the watertight body, at least one recessed portion fitted to the protrusion in a shape corresponding to the shape of the protrusion is formed.

In addition, the watertight lid has an arcuate cross section and protrudes roundly and is convex while inclining upward from both ends to the center.

In addition, it may further include a second rubber member provided in the space inside the watertight part.

In addition, the load distribution unit is inclined upward from both ends toward the center and rises convexly, the body having an arcuate cross-section with the center as the highest point; One end is integrally connected with both ends of the main body, and is inclined upward toward the outside, and the other end is a pair of wings connected to the side of the water tank by resin welding; including, the main body and the pair of wings, respectively This connecting point becomes the lowest point of the load distribution part and comes into contact with the bottom surface and is fastened to the bottom surface by resin welding or screws, and the support part is installed in a space between the main body and the floor surface.

In addition, the pair of first rubber members provided in the space between the pair of wings and the bottom surface; may further include.

The assembly structure of the water tank and the water spraying vehicle of the present invention is a conventional method in which the load of the water tank is concentrated to the corners by providing a support portion provided with a plurality of arc-shaped convex portions and a load distribution portion having a parabolic cross section at the lower portion of the water tank. In comparison, the load can be evenly distributed between the bottom of the water tank and the base frame connected to the chassis frame of the vehicle.

In addition, since the first rubber member is provided between the load distribution unit and both ends of the inner bottom surface of the water tank, vibration generated during driving can be absorbed.

In addition, since the second rubber member is provided inside the watertight body, it is possible to prevent damage to the watertight part due to the load of the water tank.

In addition, since the cross section of the watertight lid is manufactured in an arcuate shape, the load of the water tank applied to the watertight part can be dispersed, thereby preventing the watertight part from being damaged, and thus the durability of the watertight part can be improved.

1 is a cross-sectional view illustrating an assembly structure of a water tank and a water spraying vehicle according to an embodiment of the present invention.
Figure 2 shows a watertight part according to an embodiment of the present invention.
3 is a flowchart illustrating a method for assembling a water tank and a watering vehicle according to the present invention.
4 is a flowchart illustrating a method of installing a load distribution unit and a support unit in a water tank according to the present invention.
5 is a flowchart illustrating a method of assembling the water tank and the water spraying vehicle of FIG. 1 .
6 is a flowchart illustrating a method of installing a water tank, a load distribution unit, and a support unit in FIG. 5 .

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms, and only these embodiments are intended to completely inform those of ordinary skill in the art to which the present invention pertains to the scope of the invention. It is provided for the purpose, and matters obvious to those of ordinary skill in the art of the present invention may be omitted. In addition, the same reference numerals refer to the same members throughout each embodiment. On the other hand, each component shown in the drawings may have an exaggerated thickness or dimension for convenience of description, and does not mean that it should actually be configured in a ratio between the corresponding dimensions or components.

The present invention has been devised to solve the problem that the prior art does not effectively distribute the load of water applied to the bottom surface 110 , and effectively distributes the load of water applied to the bottom surface 110 of the water tank 100 . It is an object of the present invention to provide an assembly structure of a water tank and a water spraying vehicle that is easy to attach to and detach from a vehicle and has an excellent vibration absorption effect due to the movement of the vehicle.

1 is a cross-sectional view illustrating an assembly structure of a water tank and a watering vehicle according to an embodiment of the present invention, and FIG. 2 shows a watertight part 400 according to an embodiment of the present invention.

Referring to FIG. 1 , the assembly structure of a water tank and a watering vehicle according to an embodiment of the present invention includes a water tank 100 , a base frame 200 , a fastening part 300 , a watertight part 400 , and a pair of It is configured to include a first rubber member 500 and a plurality of second rubber members 600 .

The water tank 100 stores a liquid (hereinafter referred to as “mixed liquid”) in which water or a chemical is mixed, and may be manufactured using aluminum or plastic. In addition, the water tank 100 further includes a load distribution unit 120 and a support unit 130 in the inner space of the lower portion, and the outer shape of the water tank 100 is rectangular in one embodiment of the present invention. It may be manufactured in various shapes in which the load distribution unit 120 and the support unit 130 may be provided in the lower internal space of the water tank 100 , such as an oval shape other than the oval shape.

The base frame 200 is installed such that the water tank 100 is fixed to the upper side, and is fixed to the frame of the vehicle in the shape of a square flat plate. The base frame 200 is preferably made of a material such as steel having sufficient strength and durability to withstand the load of the water tank 100 fixedly installed on the upper side, and the fastening part 300 can penetrate A plurality of fasteners are provided.

The fastening part 300 passes through a plurality of fastening holes provided in the base frame 200 and the bottom surface 110 of the water tank 100 to fix the water tank 100 to the base frame 200 . . To this end, the fastening part 300 has a body 310 having a screw thread on its outer surface, and has a diameter wider than the diameter of the body 310 . A head 320 integrally connected with the body 310 at one end of the body 310, and a hollow formed in the center where the screw 700 is fastened to the thread of the body 310 at the other end of the body 310 It includes a nut 330 and an elastic body 340 provided between the lower side of the base frame 200 and the head 320 of the fastening part 300 .

At this time, the fastening part 300 is made of a material having sufficient strength and durability so that the water tank 100 does not move on the upper side of the base frame 200 without being damaged by the vibration of the watering vehicle 10 such as steel. It should be manufactured, and may be made of a material such as steel like the base frame 200 , and includes an elastic body 340 at the lower side of the base frame 200 and the head 320 of the fastening part 300 . This has the effect of preventing damage to the watering vehicle 10 and the water tank 100 by absorbing and canceling vibrations of the watering vehicle 10 and the water tank 100 .

In addition, the fastening part 300 is tightened after passing through the base frame 200 and the bottom surface 110 of the water tank 100 in order to fix the water tank 100 on the upper side of the base frame 200 . At this time, one end of the fastening part 300 penetrating through the bottom surface 110 of the water tank 100 and exposed to the inside of the water tank 100 is applied to the mixed liquid stored in the water tank 100 . It should have a structure in which the mixed liquid cannot directly contact so that corrosion does not occur. To this end, in the present invention, a plurality of fastening holes through which the fastening part 300 formed in the load distributing part 120 is penetrated are at the center and are connected integrally in the load distributing part 120 while enclosing the fastening holes. It includes a watertight portion 400 that is.

That is, the watertight part 400 is the fastening part so that one end of the fastening part 300 does not come into contact with the mixed liquid inside the water tank 100 while the water tank 100 is fixed to the base frame 200 . One end of (300) is wrapped.

2 illustrates a watertight part 400 according to an embodiment of the present invention. Referring to FIG. 2 , the watertight part 400 includes a watertight body 410 and a watertight lid 420 . That is, the watertight part 400 can observe the state of the fastening part 300 located inside the watertight body 410 through the watertight lid 420 as well as attaching the water tank 100 to the base frame ( 200) can be easily fixed.

The watertight body 410 is formed with an opening on the upper side, the lower surface is integrally connected to the load distribution unit 120, and the watertight lid 420 is fitted to the upper portion of the watertight body 410 to close the opening. Thus, the watertight part 400 can be closed so that the space inside the watertight part 400 is watertight from the mixed liquid inside the water tank 100 . In addition, the watertight lid 420 may be separated from the watertight body 410 as necessary to open the opening to expose the fastening portion 300 located inside the watertight body 410 .

At least one protrusion 411 is provided on both sides of the watertight body 410 in order to fit the watertight lid 420 to the watertight body 410, and the watertight body 410 from the watertight lid 420. ), at least one depression 421 fitted to the protrusion 411 in a shape corresponding to the shape of the protrusion 411 is formed at both ends of the one surface facing.

At this time, the watertight lid 420 has an arcuate cross section and is protruded roundly and convexly while being inclined upward from both ends to the center. By distributing the load of the water tank 100 applied to the part 400 to prevent damage to the watertight part 400 , the durability of the watertight part 400 may be further improved.

In addition, as the watertight lid 420 is selectively separable from the watertight body 410 as needed, one end of the fastening part 300 is exposed while being positioned inside the watertight body 410 and the fastening part 300 ), it is possible to facilitate the operation of tightening the fastening part 300 in order to observe the state of the water tank 100 or to fix the water tank 100 to the base frame 200 .

Referring back to FIG. 1, the load distribution unit 120 has a parabolic cross-section, and a portion is provided to abut against the bottom surfaces 110 and () inside the water tank 100, and the remaining portion is provided to the bottom surface ( 110) to distribute the load of the water tank 100.

The load distributing unit 120 is convexly inclined upward from both ends to the center and has an arcuate cross section with the center as the highest point, and one end is integrally connected to both ends of the body 121 and round It is inclined upward toward the outside, and the other end is configured to include a pair of wings 122 connected to the side surface of the water tank 100 by resin welding.

At this time, the point at which each of the main body 121 and the pair of wings 122 is connected becomes the lowest point of the load distributing part 120 and comes into contact with the bottom surface 110 and the bottom surface 110 and the resin. It is fastened and fixed by welding or screws 700 , and the support part 130 is installed in a space between the body 121 and the bottom surface 110 .

The support part 130 is installed between the load distribution part 120 and the bottom surface 110 of the water tank 100 to support the load of the water tank 100 .

The support part 130 has a plurality of convex parts 131 that are convexly protruded upward in an arcuate shape, and a plurality of convex parts 131 that extend outwardly from both ends of each of the convex parts 131 to round the convex part 131 . It includes a connection part 132 for connecting to each other.

At this time, the size of each of the plurality of convex portions 131 is determined to correspond to the space height H between the load distribution unit 120 and the bottom surface 110 , and each of the plurality of convex portions 131 . The upper part of the abuts against the load distribution unit (120).

The assembly structure of the water tank and the watering vehicle according to the present invention includes a load distribution unit 120 having a parabolic cross section and a support unit 130 having a plurality of arcuate convex portions 131 provided at the bottom of the water tank 100. , the advantage of being able to evenly distribute the load to the base frame 200 connected to the bottom surface 110 of the water tank 100 and the chassis frame of the vehicle compared to the conventional method in which the load of the water tank 100 is concentrated at the corners There is this.

The pair of first rubber members 500 may be provided in the space between the pair of wings 122 and the bottom surface 110 , and the second rubber member 600 is disposed inside the watertight part 400 . It can be provided in the space of

The first rubber member 500 is to be fastened to the load distributing part 120 through the fastening part 300 passing through the base frame 200 and the bottom surface 110 of the water tank 100 in sequence. At least one fastening hole is provided so that

The second rubber member 600 is provided with a groove 610 surrounding one end of the fastening part 300 having one side passing through the load distributing part 120 , and the groove 610 is the fastening part 300 . ) is produced corresponding to the shape of one end or is preferably formed in a shape suitable for wrapping at least one end of the fastening part 300 .

Since the first rubber member 500 is provided, compared to the case where there is an empty space between the pair of wings 122 and the bottom surface 110, the wings 122, which are both ends of the load distribution unit 120, are Since the first rubber member 500 can support the applied load, it is possible to prevent damage to the water tank 100 and the load distribution unit 120 . In addition, the first rubber member 500 is made of an elastic material having sufficient durability to support the load applied to the wings 122 , so that the vibration applied from the watering vehicle 10 to the water tank 100 and By canceling the vibration applied from the water tank 100 to the watering vehicle 10 , damage to the watering vehicle 10 and the water tank 100 can be prevented, and accidents of the watering vehicle 10 can be prevented.

In addition, since the second rubber member 600 is provided, the second rubber member 600 supports the load of the water tank 100 inside the watertight body 410 so that the watertight part 400 is connected to the water tank. Not only can it be prevented from being damaged by the load of 100, but also if the mixed liquid leaks into the watertight body 410 closed by the watertight lid 420, the second rubber member 600 The watertight body 410 covers one end of the fastening part 300 inside and prevents the liquid mixture from directly contacting one end of the fastening part 300 directly, thereby causing corrosion or damage to the fastening part 300 . can prevent

3 is a flowchart of a method for assembling a water tank and a watering vehicle according to the present invention, and FIG. 4 is a flowchart illustrating a method of installing the load distribution unit 120 and the support unit 130 in the water tank 100 of the present invention. .

Referring to FIG. 3 , in the order of assembling the water tank 100 and the watering vehicle 10 of the present invention, the steps of installing the load distribution unit 120 and the support unit 130 in the water tank 100 (S100), the base Fixing the frame 200 to the chassis frame of the watering vehicle 10 (S200), seating the water tank 100 at a designated position on the upper side of the base frame 200 (S300), fastening Connecting the water tank 100 and the base frame 200 to each other using a sphere (S400), fixing the water tank 100 to the base frame 200 by tightening the fasteners (S500), and The watertight lid 420 is fitted to the watertight body 410 so that one end of the fastener positioned inside the watertight body 410 does not come into contact with the mixed liquid inside the water tank 100 to seal the watertight part 400 watertightly. It is made to include a step (S700) of sealing.

Referring to FIG. 4 , in step S100 , the load distribution unit 120 and the support unit 130 are connected to each other ( S110 ) and the load distribution unit 120 to which the support unit 130 is connected is connected to the water tank. (100) is made including the step (S130) of installing it on the bottom surface 110, and in the step S130, the point at which the main body 121 and the pair of wings 122 are connected is the load distribution unit ( 120) becomes the lowest point of the water tank ( 100) is installed on the bottom surface 110 of the.

At this time, in step S400 , a pair of fastening parts 300 connecting the water tank 100 and the base frame 200 to each other at both ends of the load distributing part 120 among the plurality of fastening parts 300 . ) each passes through the base frame 200 , the bottom surface 110 , and the load distribution unit 120 in sequence, and then one end of the body 310 of the fastening unit 300 is the watertight body 410 . The water tank 100 and the base frame 200 are located in the space inside the watertight part 400 through the center of the lower surface, and are located at both ends of the load distribution part 120 among the plurality of fastening parts 300 . Each of the other fastening parts 300 except for the pair of fastening parts 300 connecting the After penetrating, one end of the body 310 of the fastening part 300 penetrates the center of the lower surface of the watertight part 400 and is positioned in the space inside the watertight part 400 .

In addition, in the step S500 , each of the plurality of fastening parts 300 is fixed with a nut 330 fastened to one end of the body 310 of the fastening part 300 and fixed to the water tank 100 . is fixed to the base frame 200 .

The assembly structure of the water tank and the watering vehicle of the present invention includes a first rubber member 500 and a watertight body provided in a space between the bottom surface 110 of the water tank 100 and both ends of the load distribution unit 120 . A second rubber member 600 provided in the 410 may be further included. FIG. 5 is a flowchart illustrating a method of assembling the water tank and the water spraying vehicle of FIG. 1 , and FIG. 6 is the water tank 100 in FIG. 5 . ) and a flowchart for a method of installing the load distribution unit 120 and the support unit 130 .

5, between the steps S500 and S700, the step (S600) of receiving the second rubber member 600 inside the watertight body 410 may be further included. Referring to FIG. 6, Between the steps S110 and S130, a step (S120) of mounting the first rubber member 500 to both ends of the bottom surface 110 inside the water tank 100 may be further included.

In this case, the step S400 includes a pair of fastening parts 300 connecting the water tank 100 and the base frame 200 to each other at both ends of the load distribution part 120 among the plurality of fastening parts 300 . ) each passes through the base frame 200, the bottom surface 110, the first rubber member 500, and the load distribution unit 120 in turn, and then, of the body 310 of the fastening unit 300 One end passes through the center of the lower surface of the watertight body 410 and is located in the space inside the watertight part 400 , and the water tank 100 is located at both ends of the load distribution part 120 among the plurality of fastening parts 300 . ) and each of the other fastening parts 300 except for the pair of fastening parts 300 connecting the base frame 200 to each other are the base frame 200, the bottom surface 110, the support part 130, and the load. After passing through the dispersion part 120 in turn, one end of the body 310 of the fastening part 300 penetrates the center of the lower surface of the watertight part 400 and is located in the space inside the watertight part 400 . will do

In the prior art, the means for distributing and supporting the load of the water tank is made between the chassis frame of the watering vehicle and the water tank, whereas the method of assembling the water tank and the watering vehicle of the present invention is largely based on the water tank 100 in step S100. It can be divided into a step of installing the load distribution unit 120 and the support unit 130 and a step of installing the water tank 100 in steps S200 to S700 on the upper side of the base frame 200 of the watering vehicle 10, so that the water tank After the installation of the load distribution unit 120 and the support unit 130 is completed in advance in the factory where the 100 is produced, the water tank 100 is installed in the watering vehicle 10 through the fastening unit 300 in another space. Therefore, not only has the advantage that the process of assembling the water tank 100 to the watering vehicle 10 is simple, but also the water tank 100 can be easily installed into the watering vehicle 10 without changing or remodeling the chassis frame of the watering vehicle 10 . ) can be assembled.

In addition, the fastening structure is simple as one fastening part 300 penetrates through the base frame 200 , the bottom surface 110 of the water tank 100 , the support part 130 , and the load distribution part 120 and is fastened to each other. Accordingly, there is an advantage that the installation process is simplified.

The present invention is not limited to the specific preferred embodiments described above, and various modifications are possible by anyone with ordinary skill in the art to which the invention pertains without departing from the gist of the invention as claimed in the claims. Of course, such modifications are intended to be within the scope of the claims.

10: watering vehicle
100: water tank
200: base frame
300: fastening part
400: watertight part
500: first rubber member
600: second rubber member
700: screw

Claims (7)

a water tank 100 for storing a liquid (hereinafter referred to as “mixed liquid”) in which water or chemicals are mixed;
The water tank 100 is fixed to the upper side, the base frame 200 is installed to be fixed to the frame of the vehicle in the shape of a square plate;
A plurality of fastening parts 300 for fixing the water tank 100 to the base frame 200 by passing through a plurality of fastening holes provided on the base frame 200 and the bottom surface 110 of the water tank 100 . ); and,
When the water tank 100 is fixed to the base frame 200 , one end of the fastening part 300 is cut so that one end of the fastening part 300 does not come into contact with the mixed liquid inside the water tank 100 . Including the watertight part 400 surrounding;
The water tank 100 is
The cross section has a parabolic shape, and a part is provided to be in contact with the bottom surfaces 110 and ( ) inside the water tank 100 , and the remaining part is installed to be separated from the bottom surface 110 , so that the load of the water tank 100 . a load distribution unit 120 to distribute the and,
and a support part 130 installed between the load distribution part 120 and the bottom surface 110 of the water tank 100 to support the load of the water tank 100;
The support 130 is
a plurality of convex portions 131 formed to protrude upward in an arcuate shape; and,
Connecting portions 132 extending outwardly from both ends of each of the plurality of convex parts 131 to connect the convex parts 131 to each other;
The size of each of the plurality of convex parts 131 is determined to correspond to the space height H between the load distribution part 120 and the bottom surface 110,
An assembly structure of a water tank and a watering vehicle in which upper portions of each of the plurality of convex portions 131 abut against the load distributing portion 120 . According to claim 1,
The fastening part 300 is
Body 310 having a screw thread on its outer surface;
having a larger diameter than the diameter of the body 310 . a head 320 integrally connected to the body 310 at one end of the body 310;
a nut 330 having a hollow formed in the center of the other end of the body 310 with a screw 700 fastened to the thread of the body 310; and,
An assembly structure of a water tank and a watering vehicle including an elastic body (340) provided between the lower side of the base frame (200) and the head (320) of the fastening part (300). According to claim 1,
The watertight part 400,
A watertight body (410) having an open portion formed on the upper side, the lower surface of which is integrally connected to the load distribution unit (120); and,
It is fitted to the upper part of the watertight body 410 and closes the opening to close the watertight part 400 so that the space inside the watertight part 400 is watertight from the mixed liquid inside the water tank 100 Watertight lid (420); Including,
At least one protrusion 411 is provided on the upper side of both sides of the watertight body 410,
At both ends of one side of the watertight lid 420 facing the watertight body 410, at least one depression 421 is formed to have a shape corresponding to the shape of the protrusion 411 and to be fitted to the protrusion 411. The assembly structure of the water tank and the watering vehicle. 4. The method of claim 3,
The watertight lid 420 has an arcuate cross-section and protrudes roundly while inclining upward from both ends to the center. 4. The method of claim 3,
The assembly structure of the water tank and the watering vehicle further comprising a second rubber member (600) provided in the space inside the watertight part (400). According to claim 1,
The load distribution unit 120,
The body 121 of an arcuate cross-section, which rises convexly while being inclined upward toward the center from both ends and the center is the highest point;
One end is integrally connected with both ends of the body 121 in a round manner and is inclined upward toward the outside, and the other end is a pair of wings 122 connected to the side of the water tank 100 by resin welding; and ,
The point at which each of the main body 121 and the pair of wings 122 is connected becomes the lowest point of the load distribution unit 120 and comes in contact with the bottom surface 110 and is welded or screwed with the bottom surface 110 and resin. (700) is fastened and fixed,
The support unit 130 is an assembly structure of a water tank and a watering vehicle installed in a space between the main body 121 and the bottom surface 110 . 7. The method of claim 6,
The assembly structure of a water tank and a sprinkler vehicle further comprising; a pair of first rubber members (500) provided in a space between the pair of wings (122) and the bottom surface (110).

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