JP2535498Y2 - Reserve tank - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reserve tank used in a radiator or the like.

[0002]

2. Description of the Related Art Generally, a radiator of an automobile or the like is provided with a reserve tank as disclosed in Japanese Utility Model Laid-Open No. 60-57732 in order to temporarily store a cooling liquid in the radiator. I have. FIG. 4 shows this type of reserve tank. In this reserve tank,
A coolant supply port (not shown) is formed on the upper surface of the tank body 11, and a cap 13 is screwed into the coolant supply port.

An overflow pipe 15 is opened on the upper surface of the tank body 11. Further, a cooling liquid inlet / outlet pipe 17 is opened at a lower portion of the tank main body 11, and the other end of a hose 19 having one end connected to a radiator (not shown) is connected to the cooling liquid inlet / outlet pipe 17.

In such a reserve tank, when the temperature of the coolant rises and the pressure inside the radiator increases, the pressurizing valve of the radiator cap opens, and the coolant inside the radiator passes through the coolant inlet / outlet pipe 17. Street, tank body 11
Flows into. Then, when the amount of the coolant flowing into the tank body 11 exceeds the capacity of the tank body 11, the coolant is discharged to the outside through the overflow pipe 15.

On the other hand, when the temperature of the coolant becomes low and the pressure in the radiator decreases, the negative pressure valve of the radiator cap opens, and the coolant in the tank body 11 passes through the coolant inlet / outlet pipe 17 and the cap Flows into the radiator through the negative pressure valve.

[0006]

However, in such a conventional reserve tank, when the vehicle is transported, for example, the coolant may leak from the overflow pipe 15 into the atmosphere and contaminate the surroundings. There was a problem. That is, in general, a new car or the like is transported to a destination by a trailer in a state of being filled with a coolant in a reserve tank so that it can be used as it is,
During this transport, the trailer vibrates greatly, and at this time, the coolant may leak from the overflow pipe 15 into the atmosphere and contaminate the surroundings.

The present invention solves the above-mentioned problems, and provides a reserve tank which can effectively prevent a coolant from flowing out of an overflow pipe during transportation of a vehicle by a simple structure. The purpose is to:

[0008]

The reserve tank according to the present invention has a cooling liquid supply port in which a cap is detachably provided at an upper part of the tank body, and an overflow pipe is provided at an upper part of the tank body. In the reserve tank, the liquid leakage prevention cap is detachably disposed at the atmosphere side opening of the overflow pipe,
The inside of the overflow pipe and the atmosphere side communicate with the liquid leakage prevention cap, and a communication path having a bent portion is formed.

[0009]

In the reserve tank according to the present invention, when the coolant flows into the overflow pipe due to the shaking of the vehicle or the like, the coolant is prevented from flowing out to the atmosphere by the bent portion of the leak prevention cap.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention; FIG. 1 is a cross-sectional view of the overflow pipe of FIG. 3, FIG. 2 is a perspective view of the overflow pipe and the liquid leakage prevention cap of FIG. 3, and FIG. 3 shows an embodiment of the reserve tank of the present invention.

In FIG. 3, reference numeral 31 denotes a rectangular parallelepiped tank body integrally formed of, for example, resin. A cooling liquid supply port (not shown) is formed on the upper surface of the tank body 31, and a cap 3
3 is detachably screwed. The tank body 31
A coolant inlet / outlet pipe 37 connected to a radiator cap via a hose 35 is opened at a lower side surface of the radiator.

Further, at the upper corner of the tank body 31,
An overflow pipe 39 is provided. Then
In this embodiment, as shown in FIGS. 1 and 2, a liquid leakage prevention cap 43 made of, for example, a resin is detachably disposed in the atmosphere side opening 41 of the overflow pipe 39.

The liquid leakage prevention cap 43 includes:
A communication passage 49 having bent portions 45 and 47 is formed so as to communicate the inside of the overflow pipe 39 with the atmosphere side.
That is, in this embodiment, the liquid leakage prevention cap 43 is
It has a rectangular shape corresponding to the cross-sectional shape of the overflow pipe 39, and can be inserted into the atmosphere-side opening 41 of the overflow pipe 39.

A flange portion 51 is formed on the air-side end surface of the liquid leakage prevention cap 43. Further, a locking claw 53 is integrally formed on the upper surface of the liquid leakage prevention cap 43, and the locking claw 53 can be fitted into a locking groove 55 formed in the overflow pipe 39. As shown in FIG. 1, the communication path 49 formed in the liquid leakage prevention cap 43 is directed to the atmosphere side through the liquid leakage prevention cap 43, and then the opposite side to the atmosphere side via the bent portion 45. , And further to the atmosphere side via the bent portion 47, and is opened to the atmosphere.

In the reserve tank constructed as described above, the liquid leakage prevention cap 43 is detachably disposed at the atmosphere side opening 41 of the overflow pipe 39, and the liquid leakage prevention cap 43 The inside of the pipe 39 communicates with the atmosphere side, and the bent portions 45 and 47
Is formed, the outflow of the coolant from the overflow pipe during transportation of the vehicle or the like can be effectively prevented by a simple structure.

That is, in the reserve tank configured as described above, when the coolant flows into the overflow pipe 39 due to the shaking of the vehicle or the like, the coolant flows out to the atmosphere, and the leakage prevention cap 43 is bent. Since the cooling liquid is blocked by the portions 45 and 47, for example, when the vehicle is transported, the possibility that the coolant leaks from the overflow pipe 39 into the atmosphere and contaminates the surroundings can be greatly reduced.

In the reserve tank configured as described above, the atmosphere side opening 41 of the overflow pipe 39 is provided.
In addition, since the liquid leakage prevention cap 43 is detachably arranged,
For example, the liquid leakage prevention cap 43 can be attached only during transportation of the vehicle, and the liquid leakage prevention cap 43 can be easily removed after transportation. Even after the transportation, by attaching the liquid leakage prevention cap 43 to the overflow pipe 39, the leakage of the cooling liquid during the normal operation of the automobile can be more reliably prevented, and the dust from the outside can be prevented. And the like can be prevented.

Further, in the reserve tanks of various shapes, by making the shape of the atmosphere-side opening 41 of the overflow pipe 39 the same, the same liquid leakage prevention cap 4 is formed.
5 can be used for reserve tanks of various shapes. In the embodiment described above, the bent portions 45, 4
Although an example in which two portions 7 are provided has been described, the present invention is not limited to this embodiment, and it goes without saying that three or more portions may be provided.

[0019]

As described above, in the reserve tank of the present invention, the liquid leakage prevention cap is removably disposed at the atmosphere side opening of the overflow pipe, and the liquid leakage prevention cap is provided inside the overflow pipe. And the atmosphere side, and a communication passage having a bent portion is formed, so that there is an advantage that the outflow of the coolant from the overflow pipe at the time of transportation of the vehicle or the like can be effectively prevented by a simple structure. is there.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of the overflow pipe of FIG.

FIG. 2 is a perspective view of an overflow pipe and a liquid leakage prevention cap of FIG. 3;

FIG. 3 is a side view showing an embodiment of the reserve tank of the present invention.

FIG. 4 is a side view showing a conventional reserve tank.

[Explanation of symbols]

 31 tank main body 33 cap 39 overflow pipe 41 atmosphere side opening 43 liquid leakage prevention cap 45, 47 bending part 49 communication passage

Claims (1)

(57) [Scope of request for utility model registration] 1. A cooling liquid supply port in which a cap (33) is detachably provided is opened in an upper part of a tank body (31), and an overflow pipe (39) is provided in an upper part of the tank body (31). The reserve tank becomes
Atmospheric side opening (4) of the overflow pipe (39)
In 1), a liquid leakage prevention cap (43) is detachably disposed, and the inside of the overflow pipe (39) and the atmosphere side are communicated with the liquid leakage prevention cap (43) to form a bent portion (45, 45). 47. A reserve tank formed by forming a communication path (49) having 47).