KR19990024421U - Hose connection structure for automobile coolant - Google Patents

Abstract

The present invention relates to a hose connection structure for a vehicle's cooling water, and to improve the assembly structure between the plastic hose and the connection pipe, a hose connection structure for a vehicle's cooling water to prevent leakage and cost reduction due to the elimination of quick connectors. A rubber hose or plastic hose is inserted from the outside of the connecting pipe to provide the same, and in the hose coupling structure for a vehicle's cooling water fastened by mounting a spring clamp or a quick connector around the rubber hose or the plastic hose, the plastic hose ( The rubber seal 54 having a flange shape is formed between the 52 and the connecting pipe 50 with a through hole 54a having a predetermined diameter therein.

Description

Hose connection structure for automobile coolant

The present invention relates to a hose coupling structure for a car's cooling water, in particular, to improve the assembly structure of the plastic hose for the cooling water and the connection pipe of the car to reduce the cost and leaks to the vehicle's cooling water hose connection structure It is about. In general, while driving a car, the temperature in the engine combustion chamber reaches 1500 ℃ or more, and when it accumulates and exceeds a certain limit, the engine constituents are damaged, the viscosity of lubricating oil is reduced and the quality of the mixture is increased, and the suction efficiency of the mixed gas is expanded Of the engine, abnormal combustion, etc. occur, and the engine operation deteriorates and it becomes inoperable. This is called overheating of the engine, and it is impossible to prevent this overheating, but in the case of overcooling where the temperature of the engine is too low, gasoline of the gas mixture of atomized gas sucked into the cylinder does not sufficiently gasify and the combustion state becomes poor. Consumption increases, and unburned gasoline remains on the cylinder walls, resulting in lean lubricants and adversely affecting engine operation and durability.

Therefore, it is important to keep the operating temperature most suitable for the operation of the engine in the combustion chamber, cylinder, piston, valve structure, etc.

Cooling system will be installed.

The cooling structure of such an engine can be classified into air cooling and water cooling. In the air cooling type, forced air cooling by a cooling fan is generally used. Cooling fins are installed on the cylinder head and the cylinder block outer wall to increase the heat dissipation area, thereby increasing cooling efficiency. In addition, forced ventilation by the fan is introduced by the shroud (vent guide plate) to uniformly cool each cylinder. Air-cooled type has the disadvantage that the structure is simpler than water-cooled, there is no worry of water leakage, but the temperature control of the engine is difficult and the noise is loud.

On the other hand, the water-cooled cooling structure includes a water pump that circulates the coolant passage water surrounding the cylinder and the combustion chamber into the cylinder, a radiator that transmits and cools the high temperature coolant heat to the outside air, a fan to help the radiator ventilate, and quickly cools the coolant immediately after starting. It consists of a thermostat for raising the temperature.

The radiator is a kind of water tank that has a large heat dissipation area and can hold a large amount of water. The radiator is a core having a large heat dissipation area for connecting the upper tank and the lower tank and dissipating a lot of heat into the atmosphere. have.

The water pump (water pump) is generally used as a centrifugal pump, the pump acts as a pump to discharge the water out by centrifugal force in accordance with the rotation of the central impeller. Rotation is transmitted to the V belt by the crankshaft pulley, and the rotation speed is about 1.2 to 1.6 times the crankshaft.

The thermostat is a valve that operates automatically according to the water temperature, and after the engine is started, the coolant is quickly raised to an appropriate temperature (80 ° C.) and installed at the coolant outlet of the cylinder head to prevent overcooling on a long downhill road. do.

On the other hand, a car engine is provided with a cooling fan behind the radiator and forced ventilation to obtain a sufficient cooling effect at the time of stopping and at low speeds. Fans usually use two or three wing propeller fans and are made of steel plate, aluminum alloy or synthetic resin to prevent noise.

Soft water (distilled water, rain water, tap water, etc.) is used as a suitable cooling water of a water-cooled engine, and recently, coolant etc. which added rust prevention liquid to soft water are used.

1A is a cross-sectional view showing a state in which a rubber hose for cooling water of a conventional vehicle is fastened to a connecting pipe by a spring clamp, and FIG. 1B is a cross-sectional view showing a state in which a plastic hose for cooling water of a conventional vehicle is fastened to a connecting pipe by a quick connector. 1a, a rubber hose 12 is inserted from the outside of the connecting pipe 10, and a spring clamp 14 around the rubber hose 12. Is mounted by bolt & nut (not shown) coupling, and as shown in FIG. 1B, the plastic hose 22 is inserted from the outside of the connecting pipe 20, and the circumference of the plastic hose 22 is Is shown that a quick connector 24 is attached, and reference numeral 26 in the drawing denotes a seal.

At this time, in the conventional rubber hose mounting structure as shown in Figure 1a when the thickness of the rubber hose 12 is not uniform, even if the clamping force by the spring clamp 14, even if fastened by the spring clamp 14 is weak The problem is that the assembly quality is deteriorated, and the plastic hose 22 as shown in Figure 1b is used to solve the above problems, and to reduce the weight and cost, but the branch hose has a lot of branches to be applied (branch hose) in the case of hoses connected to several places in a bundle of hoses, the cost of the spring clamp 14 can be reduced to meet the cost, but if only one hose is made of plastic, the price of the quick connector 24 is relatively There was a problem that it is difficult to obtain a cost reduction effect because it is expensive.

The present invention was devised to solve the above problems, and an object of the present invention is to improve the assembly structure between the plastic hose and the connecting pipe, and to prevent leakage along with the cost reduction due to the deletion of the quick connector. It is to provide a hose connection structure for the cooling water of automobiles.

In order to achieve the object of the present invention, a rubber hose or a plastic hose is inserted from the outside of the connecting pipe, and a spring clamp or quick connector is mounted around the rubber hose or the plastic hose to be connected to the hose for the cooling water of the automobile. In the above, there is provided a hose connecting structure for cooling water of a vehicle in which a rubber seal having a flange shape having a through hole having a predetermined diameter is inserted between the plastic hose and the connecting pipe.

1A is a cross-sectional view showing a state in which a rubber hose for cooling water of a conventional vehicle is fastened to a connecting pipe by a spring clamp;

1B is a cross-sectional view showing a state in which a plastic hose for cooling water of a conventional vehicle is fastened to a connecting pipe by a quick connector;

Figure 2 is an exploded perspective view showing the configuration of the hose connection structure for the cooling water of the vehicle according to the present invention,

3 is a cross-sectional view showing an assembled state of the present invention.

Explanation of symbols on the main parts of the drawings

50: connecting pipe, 52: plastic hose,

54: rubber seal, 54a: through hole,

52a, 54b: recessed part, 56: clamp,

58: Bolt, 60: Nut.

Hereinafter, with reference to the accompanying drawings an embodiment of the hose connection structure for the cooling water of a vehicle according to the present invention will be described in detail.

Figure 2 is an exploded perspective view showing the configuration of the hose connection structure for the cooling water of the vehicle according to the present invention, Figure 3 is a cross-sectional view showing the assembled state of the present invention, according to the hose connection structure for the cooling water of the vehicle according to the rubber from the outside of the connection pipe In a hose connection structure for a vehicle's cooling water, in which a hose or a plastic hose is inserted and a spring clamp or a quick connector is fastened around the rubber hose or the plastic hose, between the plastic hose 52 and the connecting pipe 50. The rubber seal 54 which has a flange shape in which the through-hole 54a of predetermined diameter was formed in the inside is inserted.

Reference numerals 52a and 54b denote recesses in which one side of the outer surface of the plastic hose 52 and the rubber seal 54 is processed to a predetermined depth in order to fasten the clamp 56.

It describes the operation of the present invention configured as described above.

2 and 3, the connection pipe 50 is inserted through the through hole 54a of the rubber seal 54 by the hose connection structure for the cooling water of the vehicle according to the present invention, and the rubber seal The plastic hose 52 is inserted from the outer surface of one side of 54, and through the clamp 56 in a state where the recess 52a of the plastic hose 52 and the recess 54a of the rubber seal 54 are matched. The bolt 58 and the nut 60 are coupled.

The present invention made in this way is a conventional rubber hose is replaced by a plastic hose 52, the connection pipe 50 and the plastic hose 52, rubber seal using the spring clamp 56 instead of the expensive quick connector As the 54 is fastened, cost reduction and light weight are achieved, and leakage of the rubber seal 54 inserted between the plastic hose 52 and the connection pipe 50 is prevented from leaking in the portion A of FIG. 3. It becomes possible.

As described above, according to the hose connection structure for the cooling water of the vehicle according to the present invention can be prevented from leaking in the connection portion between the connecting pipe and the plastic hose with the cost savings due to the removal of the quick connector and the use of the rubber seal. Has a useful effect,

Claims (1)

In a hose coupling structure for a vehicle's cooling water, in which a rubber hose or a plastic hose is inserted from the outside of the connecting pipe, and a spring clamp or a quick connector is mounted around the rubber hose or the plastic hose. Between the plastic hose 52 and the connecting pipe 50, a rubber seal 54 for a vehicle's cooling water, characterized in that a rubber seal 54 having a flange shape having a through hole 54a of a predetermined diameter is inserted therein. .