CN212898696U - Expansion tank - Google Patents

Abstract

The utility model provides an expansion tank belongs to car technical field. It has solved the problem of current coolant liquid from expansion tank overflow. This expansion tank, including having the open-ended jar body, be equipped with the cover that can shelter from the opening on the jar body, be equipped with the wet return on the cover, the one end setting of wet return is outside the cover, and the other end setting of wet return is in the cover, and the top of cover is equipped with the outlet duct that communicates with the inner chamber of the jar body, and the outlet duct is crooked to be set up. The expansion tank can avoid the phenomenon of liquid dropping outside the tank body, and improves the use stability of the expansion tank.

Description

Expansion tank

Technical Field

The utility model belongs to the technical field of the car, a expansion tank is related to.

Background

The expansion tank is used for extruding and supplementing water in the air bag to the system by gas expansion when the gas pressure in the expansion tank is higher than the pressure of the water when the water loss pressure is reduced. Generally, the cooling system of the automobile is divided into a completely closed type and a simple closed type, and the completely closed type and the simple closed type both comprise a radiator, a cooling water pipe, a pressure cover, an expansion tank and other parts.

For example, the Chinese patent application (patent application No. 201220440059.9) discloses an automobile engine cooling system, which comprises a radiator assembly, a cooling fan assembly, an expansion tank assembly with an overflow pipe, a radiator water inlet pipe, a radiator water outlet pipe, a water pump, a thermostat and a water temperature sensor, wherein the water pump, the thermostat and the water temperature sensor are all arranged in the engine assembly connected with the radiator assembly, the expansion tank assembly with the overflow pipe comprises an expansion tank body, the expansion tank body comprises a tank opening, and an expansion tank cover provided with an air outlet is arranged on the tank opening.

The air outlet is arranged on the expansion tank cover, and can be clearly obtained from the attached drawing of the specification, the air outlet is only arranged at the end part of the expansion tank cover, and although redundant air can be discharged from the air outlet, the air outlet is only arranged and is communicated with the outside air, when the vehicle runs on a bumpy road in high-temperature weather, the cooling liquid in the expansion tank has a certain probability of overflowing from the air outlet, and the gas in the expansion tank can be discharged with partial cooling liquid, so that the phenomenon of overflowing easily occurs when the whole cooling system is used, and the use of the expansion tank is influenced.

Disclosure of Invention

The utility model aims at having the above-mentioned problem to current technique, provided an expansion tank, the utility model aims to solve the technical problem that: how to solve the problem of the overflow of the existing cooling liquid from the expansion tank.

The purpose of the utility model can be realized by the following technical proposal:

the utility model provides an expansion tank, is including having the open-ended jar body, be equipped with the cover that can shelter from the opening on the jar body, be equipped with the wet return on the cover, the one end setting of wet return is outside the cover, the other end setting of wet return is in the cover, its characterized in that, the top of cover is equipped with the outlet duct with the inner chamber intercommunication of the jar body, the crooked setting of outlet duct.

The working principle is as follows: when the mixed gas of the cooling liquid enters the tank body, gas-liquid separation can be carried out in the tank body, redundant gas can be discharged through the gas outlet pipe communicated with the inner cavity of the tank body, the gas is bent and arranged, in the process that the gas is discharged through the gas outlet pipe, the gas can turn at the gas outlet pipe, in the turning process, most high-temperature gas collides with the pipe wall of the cooler gas outlet pipe to form condensate water, so that the high-temperature gas is easy to form the condensate water in the pipe wall of the gas outlet pipe when being discharged, the gas outlet pipe is arranged at the top end of the tank cover, therefore, the condensate water formed in the pipe wall of the gas outlet pipe can flow back to the tank body through self gravity, the phenomenon of liquid dropping outside the tank body is avoided, the gas outlet pipe is arranged at the top end of the tank cover, the phenomenon that the cooling liquid overflows from the gas outlet pipe on the tank, the stability of the expansion tank in use is improved.

In the expansion tank, the air outlet pipe comprises an air outlet part and a vertically arranged air guide part, and the air outlet part is obliquely and upwards arranged relative to the air guide part.

Through with the vertical setting of guide part, the gas outlet portion upwards sets up for the guide part slope to make when high temperature gas when the discharge in the condensation water that forms in the pipe wall of outlet duct can flow into the jar internally along the gas guide part, and the slope of gas outlet portion upwards sets up, avoided the comdenstion water that forms at the pipe wall of outlet duct to flow out from the gas outlet of outlet duct, thereby promoted the stability that the expansion tank used.

In foretell expansion tank, be equipped with on the bottom of cover and be annular installation department and be annular fender edge, the wet return is worn to establish on the installation department, be equipped with the sealing washer on the bottom of cover, the sealing washer sets up at the installation department and keeps off between the edge, set up the breach that communicates with the air inlet of outlet duct on the sealing washer.

The setting of sealing washer for when the vehicle travel when jolting the road surface, even the coolant liquid rocks at the internal clearance that also can't pass through between cover and the jar body and spills over the expansion tank, thereby guaranteed the leakproofness of being connected between cover and the jar body, and can make the use of expansion tank more stable.

In the expansion tank, the mounting part is protruded to form a limiting block, and the sealing ring is provided with a limiting opening for embedding the limiting block.

The setting of stopper can promote the stability of sealing washer installation, avoids the sealing washer to appear circumferential direction after the installation, and further promotion the stability that the expansion tank used.

In the expansion tank, the limiting block is square.

The setting of this structure, can be further carry out stable spacing to the sealing washer, also increased the area of contact between sealing washer and the installation department for the setting stability more of sealing washer, further promotion the stability that the expansion tank used.

In the expansion tank, the end part of the tank body is provided with an annular limiting ring which can be embedded into the blocking edge.

The setting of this structure for the assembly between the jar body and the cover is more convenient, has promoted the assembly efficiency of expansion tank.

In the expansion tank, the side wall of the end part of the tank body is protruded to form a guide part, the tank cover is protruded to form a guide sleeve, and the guide sleeve can be sleeved on the guide part and can slide up and down along the guide part.

The setting of this structure, when jar body and cover assembly, can establish on the guide part and slide downwards along the guide part through the uide bushing cover to can play predetermined position's effect, thereby promote the assembly efficiency of expansion tank.

Compared with the prior art, this expansion tank has the advantage:

1. through setting up the outlet duct bending, gaseous this moment passes through the outlet duct exhaust in-process, and gaseous can turn to at the outlet duct, at the in-process that turns to, most gaseous striking outlet duct's pipe wall can form the comdenstion water with high-temperature gas easily in the pipe wall of outlet duct when discharging, and the outlet duct sets up the top at the cover, and consequently the comdenstion water accessible self gravity that forms in the pipe wall of outlet duct flows back to a jar body, has avoided going out at a jar body and has appeared the dropping liquid phenomenon.

2. Through add the sealing washer between the cover and jar body for when the vehicle travel when jolting the road surface, even the coolant liquid rocks in jar internal also can't overflow the expansion tank through the clearance between the cover and the jar body, thereby guaranteed the leakproofness of being connected between the cover and the jar body, and can make the use of expansion tank more stable.

Drawings

Fig. 1 is a schematic view of the structure of the expansion tank.

Fig. 2 is a top view of the present expansion tank.

Fig. 3 is a cross-sectional view taken along a-a in fig. 2.

Fig. 4 is a partial structural schematic of the present expansion tank.

Fig. 5 is a schematic diagram of the construction of the seal ring in the present expansion tank.

In the figure, 1, a tank body; 11. an opening; 12. a limiting ring; 13. a guide portion; 2. a can lid; 21. an installation part; 211. a limiting block; 22. blocking edges; 23. a guide sleeve; 3. a water return pipe; 31. a water return hose; 32. a water return hard pipe; 4. an air outlet pipe; 41. an air outlet part; 42. an air guide part; 5. a seal ring; 51. a notch; 52. a limiting opening.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, the expansion tank includes a tank body 1 having an opening 11, and a tank cover 2 capable of covering the opening 11 is provided on the tank body 1.

Specifically, as shown in fig. 1-5, a water return pipe 3 is arranged on the tank cover 2, one end of the water return pipe 3 is arranged outside the tank cover 2, the other end of the water return pipe 3 is arranged in the tank cover 2, an air outlet pipe 4 communicated with the inner cavity of the tank body 1 is arranged at the top end of the tank cover 2, and the air outlet pipe 4 is arranged in a bent manner.

The working principle is as follows: when the mixed gas of the cooling liquid enters the tank body 1, gas-liquid separation can be carried out in the tank body 1, redundant gas can be discharged through the gas outlet pipe 4 communicated with the inner cavity of the tank body 1, the gas can turn at the gas outlet pipe 4 in the process of being discharged through the gas outlet pipe 4, most high-temperature gas can collide with the pipe wall of the relatively cold gas outlet pipe 4 to form condensate water in the turning process, so that the high-temperature gas can easily form the condensate water in the pipe wall of the gas outlet pipe 4 when being discharged, the gas outlet pipe 4 is arranged at the top end of the tank cover 2, therefore, the condensate water formed in the pipe wall of the gas outlet pipe 4 can flow back to the tank body 1 through self gravity, the phenomenon of liquid dropping outside the tank body 1 is avoided, the gas outlet pipe 4 is arranged at the top end of the tank cover 2, and the phenomenon that the cooling liquid overflows from the gas outlet pipe 4 on, thereby further having avoided the coolant liquid to spill over from the expansion tank, having promoted the stability that the expansion tank used.

As shown in fig. 1 to 5, the outlet duct 4 includes an outlet portion 41 and an air guide portion 42 vertically disposed, and the outlet portion 41 is disposed obliquely upward with respect to the air guide portion 42.

As shown in fig. 3-5, an annular mounting portion 21 and an annular blocking edge 22 are disposed at the bottom of the tank cover 2, the water return pipe 3 is disposed on the mounting portion 21 in a penetrating manner, a sealing ring 5 is disposed at the bottom of the tank cover 2, the sealing ring 5 is disposed between the mounting portion 21 and the blocking edge 22, a notch 51 communicated with an air inlet of the air outlet pipe 4 is disposed on the sealing ring 5, a limit block 211 is formed by a protrusion on the mounting portion 21, a limit opening 52 for the limit block 211 to be embedded is disposed on the sealing ring 5, and the limit block 211 is square.

As shown in figure 3, the end of the can body 1 is provided with a ring-shaped limiting ring 12, and the limiting ring 12 can be embedded into the retaining edge 22.

As shown in fig. 3-5, the side wall of the end of the can body 1 is protruded to form a guide portion 13, the can lid 2 is protruded to form a guide sleeve 23, and the guide sleeve 23 can be fitted over the guide portion 13 and slid up and down along the guide portion 13.

As shown in fig. 3, the water return pipe 3 includes a water return hose 31 and a water return hard pipe 32, the water return hose 31 is inserted into the mounting portion 21, one end of the water return hose 31 is disposed outside the tank body 1, the other end of the water return hose 31 is embedded into the water return hard pipe 32, and the other end of the water return hose 31 and the water return hard pipe 32 are disposed in the tank body 1.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (7)

1. The utility model provides an expansion tank, is including the jar body (1) that has opening (11), be equipped with on jar body (1) and can shelter from cover (2) of opening (11), be equipped with wet return (3) on cover (2), the one end setting of wet return (3) is outside cover (2), the other end setting of wet return (3) is in cover (2), its characterized in that, the top of cover (2) is equipped with outlet duct (4) with the inner chamber intercommunication of the jar body (1), outlet duct (4) crooked setting.

2. The expansion tank according to claim 1, characterized in that the outlet duct (4) comprises an outlet portion (41) and a vertically arranged air guide portion (42), the outlet portion (41) being arranged obliquely upwards in relation to the air guide portion (42).

3. The expansion tank according to claim 1 or 2, wherein the bottom of the tank cover (2) is provided with an annular mounting part (21) and an annular blocking edge (22), the water return pipe (3) is arranged on the mounting part (21) in a penetrating manner, the bottom of the tank cover (2) is provided with a sealing ring (5), the sealing ring (5) is arranged between the mounting part (21) and the blocking edge (22), and the sealing ring (5) is provided with a notch (51) communicated with the air inlet of the air outlet pipe (4).

4. The expansion tank as claimed in claim 3, wherein the mounting portion (21) is bulged to form a limiting block (211), and the sealing ring (5) is provided with a limiting opening (52) for embedding the limiting block (211).

5. Expansion tank according to claim 4, characterized in that the stopper (211) is square.

6. Expansion tank according to claim 3, characterized in that the end of the tank body (1) is provided with a ring-shaped stop ring (12), the stop ring (12) being insertable into the stop edge (22).

7. Expansion tank according to claim 1 or 2, characterized in that the side wall of the end of the tank body (1) is raised to form a guide (13), the side wall of the tank cover (2) is raised to form a guide sleeve (23), and the guide sleeve (23) can be sleeved on the guide (13) and can slide up and down along the guide (13).

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