KR20040008994A - Structure for connecting water hose of cooling system in vehicle - Google Patents

Abstract

PURPOSE: A water hose connection structure is provided to allow for ease of water hose connection and achieve aesthetic enhancement, while preventing a deformation caused due to interferences with other components. CONSTITUTION: A radiator has a coolant inlet pipe(10) and a coolant outlet pipe each of which has an end with a mounting portion(11). A water hose(20) for interconnecting the coolant inlet and outlet pipes and an engine has an end with an extended portion(21) to be fitted to the mounting portion. The water hose has an outer surface with an escape preventing portion(31) for supporting the extended portion, and a clamp(30) to be coupled with the coolant inlet and outlet pipes is fitted to the escape preventing portion. The water hose and the coolant inlet and outlet pipes are interconnected with each other through the clamp.

Description

STRUCTURE FOR CONNECTING WATER HOSE OF COOLING SYSTEM IN VEHICLE}

The present invention relates to a water hose connection structure for a cooling system of an automobile, and more particularly, to facilitate connection work between a water hose and a cooling water inlet / outlet pipe of a radiator, and to prevent the connection portion from being damaged. The present invention relates to a water hose connection structure.

In order to cool the engine, automobiles are usually equipped with a water cooling unit.

The water-cooled cooling device is to lower the temperature of the engine by circulating the coolant through the cylinder block and the cylinder head by a water pump, and is provided with a radiator, a cooling fan, and a water temperature controller for heat dissipation of the coolant.

As shown in FIG. 1, the radiator 1 of the above water-cooled cooling device is placed side by side between the upper and lower header tanks 2 and 3 and the upper and lower header tanks 2 and 3. The upper and lower ends are composed of a tube 4 inserted into the upper and lower header tanks 2 and 3, respectively, and a cooling fin 5 provided between the tubes 4.

The upper header tank 2 enters the upper header tank 2 through the inlet pipe 6 through which the coolant flows, and the lower header tank 3 enters the upper header tank 2 through the inlet pipe 6 of the upper header tank 2. Outlet pipes 7 which flow along (4) and guide the coolant flowing into the lower header tank 3 to flow out to the engine side are respectively formed.

The coolant inlet / outlet pipes 6 and 7 and the engine are connected through the water hose 8 so that the coolant can circulate the engine and the radiator.

The assembly structure of the water hose and the coolant inlet / outlet pipe according to the prior art is as follows.

As shown in FIG. 1, the end part of the water hose 8 is inserted in the cooling water inlet / outlet pipes 6 and 7, and the clamp 9 is fastened to these overlapping parts.

As shown in FIG. 2, the clamp 9 includes a fastening portion 9a that is bent in an annular shape, and heads 9b and 9c that are respectively extended outwardly from both ends of the fastening portion 9a. do. One of the heads 9b and 9c may have a slot 9d formed therein so that the other head can be fitted therein so that the diameter of the fastening portion 9a may be expanded.

As shown in FIG. 3, the heads 9b and 9c of the clamp 9 using a tool (not shown) with the clamp 9 inserted in the circumference of the coolant inlet / outlet pipe 6 and 7. Holding the and tightening in the direction facing each other, as shown by the dotted line, the fastening portion (9a) is opened, and after inserting the water hose (8) in the cooling water inlet / outlet pipe (6) (7), the head (9b) ( When the 9c is released, the fastening portion 9a is tightened to the water hose 8 by the elastic force of the clamp 9, thereby assembling the water hose 8 and the cooling water inlet / outlet pipes 6 and 7.

However, the assembly structure of the water hose according to the prior art has the following problems.

When the clamp 9 is operated using the tool, the clamp 9 may be detached from the tool and an operator may be injured.

In addition, there is a disadvantage in that a special tool for fitting the clamp 9 must be used to operate the clamp 9.

In addition, the heads 9b and 9c of the clamp 9 protrude so that aesthetics are not good, and interference may occur due to interference with surrounding structures.

The present invention is to solve the above problems, when assembling the water hose of the radiator and the coolant inlet / outlet pipe assembling the water hose connection structure for the cooling system of the car so that the operator is not injured by the fastening member to assemble them The purpose is to provide.

In addition, another object of the present invention is to be able to assemble the water hose without using a separate tool.

In addition, another object of the present invention is to ensure that the assembly of the water hose does not harm the appearance.

1 is an exploded perspective view showing a water hose connection structure for a cooling system of a vehicle according to the prior art.

Figure 2 is a perspective view of a clamp applied to the water hose connection structure for a cooling system of a vehicle according to the prior art.

Figure 3 is a longitudinal sectional view showing a water hose connection structure for a cooling system of a vehicle according to the prior art.

Figure 4 is an exploded perspective view showing a water hose connection structure for a cooling system of a vehicle according to the first embodiment of the present invention.

Figure 5 is a longitudinal sectional view showing a water hose connection structure for a cooling system of a vehicle according to the first embodiment of the present invention.

Figure 6 is an exploded perspective view showing a water hose connection structure for the cooling system of the vehicle according to the second embodiment of the present invention.

7 is a front view showing a water hose connection structure for a cooling system of a vehicle according to a second embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

1: radiator, 2: upper header tank

10: cooling water inlet pipe, 11: seating part

12,32: thread part, 13: flange

14 hook hole, 20: water hose

21: expansion part, 30: clamp

31: separation prevention part, 33: hook

Water hose connection structure for a vehicle cooling system according to the present invention for achieving the object as described above, the seating portion is formed at the end of the cooling water inlet / outlet pipe of the radiator, connecting the coolant inlet / outlet pipe and the engine An end portion of the water hose is provided with an expansion pipe portion fitted into the seating portion, and an outer circumferential surface of the water hose is provided with a release preventing portion for supporting the expansion pipe portion at a rear end thereof, and a clamp coupled to the cooling water inlet / outlet tube is inserted thereinto. The water hose and the coolant inlet / outlet pipe are connected by a clamp.

A threaded portion is formed inside the seating portion of the outer circumferential surface of the coolant inlet / outlet pipe, and a screw portion that is screwed to the screwed portion is formed on the inner circumferential surface of the clamp. Thus, the clamp may be screwed into the coolant inlet / outlet pipe.

Alternatively, an annular flange having a hook hole is formed inside the seating portion of the outer circumferential surface of the cooling water inlet / outlet pipe, and a hook fixed to the hook hole by the rotation of the clamp is protruded from the front end of the clamp. A structure may be employed in which the clamp may be assembled to the cooling water inlet / outlet tube by fitting.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, the terms or words used in the present specification and claims are defined in the technical spirit of the present invention on the basis of the principle that the inventor can appropriately define the concept of the term in order to explain his invention in the best way. It must be interpreted to mean meanings and concepts.

<Example 1>

As shown in Fig. 4 and Fig. 5, the water hose connection structure for the cooling system of the vehicle according to the present embodiment, the cooling water inlet pipe 10 formed in the upper header tank (2) of the radiator (1) from the end thereof A seating portion 11 and a screw portion 12 having a larger outer diameter than the seating portion 11 are successively formed, and an expansion pipe portion 21 fitted to the outer circumferential surface of the seating portion 11 is formed at an end of the water hose 20. The clamp 30, which is screwed to the threaded portion 12 of the coolant inlet pipe 10, is fitted to the outer circumferential portion of the water hose 20.

As shown in FIG. 5, the clamp 30 is fitted to the outer circumferential surface of the water hose 20, and has a separation prevention portion 31 having a diameter smaller than the expansion portion 21 of the water hose 20 at one end thereof. The inner circumferential surface is formed with a screw portion 32 screwed to the screw portion 12 of the cooling water inlet tube 10. Therefore, the clamp 30 does not come off toward the expansion pipe part 21.

As described above, the assembling structure of the cooling water outlet pipe 10A and the water hose 20 formed in the lower header tank 3 is the same as the assembling structure of the cooling water inlet pipe 10 and the water hose 20. Will be omitted.

In order to improve the sealing property, an O-ring is placed between the expansion part 21 of the water hose 20 and the cooling water inlet and outlet pipes 10 and 10A or between the expansion part 21 of the water hose 20 and the clamp 30. May intervene.

The operation of the water hose connection structure for the cooling system of the vehicle according to the present embodiment configured as described above is as follows.

When assembling the water hose 20 to the coolant inlet pipe 10, the clamp 30 inserted in the water hose 20 is disposed away from the end of the water hose 20 so that the clamp 30 does not interfere with the coolant inlet pipe 10. (10) Inserting the expansion part 21 of the water hose 20 into the seating part 11 of the end part, and moving the clamp 30 to the joint part of the water hose 20 and the cooling water inlet pipe 10, and inlet of cooling water. When screwed into the threaded portion 12 of the pipe 10, the cooling water inlet pipe 10 and the water hose 20 is assembled. The clamp 30 is screwed to the threaded portion 12 of the coolant inlet pipe 10 with the threaded portion 32 of the inner surface thereof, and the release preventing portion 31 is in close contact with the rear end portion of the expansion pipe 21.

That is, the clamp 30 is screwed to the cooling water inlet pipe 10 while the expansion pipe 21 and the cooling water inlet pipe 10 of the water hose 20 are fitted, and covers the joint thereof, and the water hose 20 Cooling water inlet tube 10 and the water hose 20 is assembled through the clamp 30 as the separation prevention portion 31 supports so as not to fall out.

<Example 2>

6 is an exploded perspective view showing a water hose connection structure for a cooling system of a vehicle according to Embodiment 2 of the present invention, and FIG. 7 is a clamp applied to the water hose connection structure for a cooling system of a vehicle according to Embodiment 2 of the present invention. This is a cross-sectional view showing the coupling state of the coolant inlet pipe. The same reference numerals as used in Example 1 indicate the same elements.

As shown in FIG. 6, the water hose connecting structure for the cooling system of the vehicle according to the present embodiment has an outward flange 13 formed at a predetermined distance from an end portion of the cooling water inlet pipe 10 and the flange 13 is formed. ) Is provided with one or more hook holes 14 penetrating back and forth, the expansion portion 21 is formed at the end of the water hose 20, the hook 33 is fitted to the hook hole 14 in the water hose 20 Clamp 30 is provided to be movable.

The clamp 30 has a cylindrical shape, but at its rear end, a separation prevention portion 31 having a diameter smaller than the expansion pipe portion 21 is formed.

The hook 33 is protruded at intervals that can be inserted into the hook holes 14 of the flange 13 at the distal end of the clamp 30 to be inserted into the hook hole 14, and then turned to one side of the flange 13. It is configured to hang the back.

As in the first embodiment, the sealing portion 21 of the water hose 20 and the cooling water inlet pipe 10 or between the expansion portion 21 of the water hose 20 and the clamp 30 is used to improve the sealing property. Can intervene with a ring.

Referring to the operation of the water hose connection structure for the cooling system of the vehicle according to this embodiment configured as described above, the expansion portion 21 of the water hose 20 to the outer peripheral surface of the seating portion 11 of the cooling water inlet pipe 10 Insert the hook 30 into the coolant inlet tube 10 and insert the hook 33 into the hook hole 14, and then rotate the clamp 30 to one side as shown in FIG. So that the engaging portion 33a of the hook is caught by the flange 13. In this case, while the separation prevention part 31 of the clamp 30 is in close contact with the rear of the expansion pipe 21, the clamp 30 is coupled to the cooling water inlet pipe 10 and the cooling water inlet pipe via the clamp 30. 10 and the water hose 20 are assembled.

Therefore, as the clamp 30 is coupled to the cooling inlet / outlet pipes 10 and 10A while moving along the water hose 20, the clamp is not detached as in the related art.

Since the water hose 20 and the coolant inlet pipe 10 can be assembled by turning the clamp 30 by hand, there is no need for a tool for operating the clamp as in the prior art.

In addition, the clamp 30 has the same circular cross section as the water hose 20 and the coolant inlet tube 10, and there is no protruding portion.

As described above, according to the water hose connection structure for the cooling system of the vehicle according to the present invention, when the water hose is connected to the coolant inlet / outlet pipe of the radiator, the clamp does not come off toward the operator, thereby improving worker safety. have.

In addition, the water hose can be easily connected by simply turning the clamp by hand without using a separate tool.

In addition, since the appearance of the clamp is similar to that of the water hose and the coolant inlet / outlet tube, it does not protrude without giving a sense of heterogeneity, thereby improving aesthetics and preventing deformation due to interference with peripheral components.

While the invention has been described and illustrated in connection with a preferred embodiment for illustrating the principles of the invention, the invention is not limited to the configuration and operation as such is shown and described. Rather, those skilled in the art will appreciate that many modifications and variations of the present invention are possible without departing from the spirit and scope of the appended claims. Accordingly, all such suitable changes and modifications and equivalents should be considered to be within the scope of the present invention.

Claims (3)

A seating part 11 is formed at an end of the coolant inlet / outlet pipe 10 and 10A of the radiator 1, and the seating part is formed at an end of the water hose 20 connecting the coolant inlet / outlet pipe and the engine. An expansion pipe portion 21 to be inserted into the water hose is provided, and the outer circumferential surface of the water hose is provided with a release prevention portion 31 for supporting the expansion pipe portion at the rear end thereof and the clamp 30 coupled to the cooling water inlet / outlet pipe is provided. Sandwiched; The water hose connection structure for a vehicle cooling system, characterized in that the water hose and the cooling water inlet / outlet pipe is connected by the clamp. According to claim 1, wherein the threaded portion 12 is formed inside the seating portion of the outer peripheral surface of the cooling water inlet / outlet pipe, and the threaded portion 32 is screwed to the threaded portion is formed on the inner peripheral surface of the front end of the clamp Water hose connection structure for the cooling system of the vehicle. According to claim 1, wherein an annular flange (13) having at least one hook hole (14) is formed inside the seating portion of the outer circumferential surface of the coolant inlet / outlet pipe, the end of the clamp is fitted into the hook hole Water hose connection structure for a cooling system of a vehicle, characterized in that the hook 33 is projected to the flange by the rotation of the clamp.