CN110966080A

CN110966080A - Cover body structure, auxiliary water tank, vehicle and locking method of cover body structure of auxiliary water tank

Info

Publication number: CN110966080A
Application number: CN201811165214.9A
Authority: CN
Inventors: 刘金波; 苏朝霞; 王旭东; 卢明哲
Original assignee: Beiqi Foton Motor Co Ltd
Current assignee: Beiqi Foton Motor Co Ltd
Priority date: 2018-09-30
Filing date: 2018-09-30
Publication date: 2020-04-07
Anticipated expiration: 2038-09-30
Also published as: CN110966080B

Abstract

The invention provides a cover body structure, an auxiliary water tank, a vehicle and a locking method of the cover body structure of the auxiliary water tank, wherein the cover body structure comprises the following components: the cover body is arranged at the inlet or the outlet of the container in a covering manner; the locking structure is arranged on the cover body and has a locking state locked with the inlet or the outlet and an unlocking state unlocked with the inlet or the outlet, the cover body cannot be separated from the inlet or the outlet under the condition that the locking structure is in the locking state, the cover body can be separated from the inlet or the outlet under the condition that the locking structure is in the unlocking state, and the locking structure can be converted into the locking state from the unlocking state under the condition that the temperature in the container exceeds a preset temperature or the pressure in the container exceeds a preset pressure. The technical scheme of the invention effectively solves the problem that a user is easily scalded in the process of uncapping and filling operation in the prior art.

Description

Cover body structure, auxiliary water tank, vehicle and locking method of cover body structure of auxiliary water tank

Technical Field

The invention relates to the technical field of automobiles, in particular to a cover body structure, an auxiliary water tank, a vehicle and a locking method of the cover body structure of the auxiliary water tank.

Background

The auxiliary water tank is generally applied to a cooling system of an automobile engine, and is an important part for ensuring the normal work of the cooling system and the engine. The auxiliary water tank has the main functions of liquid adding and storing, steam backflow, expansion space providing, system pressure maintaining and the like. When a user supplements the cooling liquid, the filling cover needs to be unscrewed first and then the auxiliary water tank is filled. Whereas the usual user filling practice is to start operation immediately after the engine has been shut down. At the moment, because the temperature of the cooling liquid in the auxiliary water tank is higher, high-temperature steam can escape from the filling port to scald operators. The case that the users on the market are scalded by the high-temperature cooling liquid steam inside the auxiliary water tank because of the operation is frequent.

Disclosure of Invention

The invention aims to provide a cover body structure, an auxiliary water tank, a vehicle and a locking method of the cover body structure of the auxiliary water tank, and aims to solve the problem that a user is easily scalded in the cover opening and filling operation process in the prior art.

In order to achieve the above object, according to one aspect of the present invention, there is provided a cover structure including: the cover body is arranged at the inlet or the outlet of the container in a covering manner; the locking structure is arranged on the cover body and has a locking state locked with the inlet or the outlet and an unlocking state unlocked with the inlet or the outlet, the cover body cannot be separated from the inlet or the outlet under the condition that the locking structure is in the locking state, the cover body can be separated from the inlet or the outlet under the condition that the locking structure is in the unlocking state, and the locking structure can be converted into the locking state from the unlocking state under the condition that the temperature in the container exceeds a preset temperature or the pressure in the container exceeds a preset pressure.

Furthermore, the cover body comprises a top cover, an outer ring wall and an inner ring wall, the outer ring wall is arranged along the edge of the top cover, the inner ring wall is arranged on the inner side of the outer ring wall, an inlet or an outlet can extend into a gap between the outer ring wall and the inner ring wall, and the locking structure is arranged in the inner ring wall.

Furthermore, the locking structure comprises a shell, a lock pin and a control mechanism, wherein the shell is arranged in the inner annular wall, the lock pin is telescopically arranged on the shell, an annular wall channel is arranged at the position, corresponding to the lock pin, of the inner annular wall, the control mechanism can drive the lock pin to move in the annular wall channel, a clamping groove is arranged on the inner side of the inlet or the outlet, and the lock pin extends into the clamping groove and can be abutted against the groove wall of the clamping groove under the condition that the locking structure is in a locking state; under the condition that the locking structure is in an unlocking state, the lock pin retracts into the inner ring wall and is separated from the clamping groove.

Further, the control mechanism comprises a capsule and an expansion medium, the capsule is arranged in the shell, the lock pin is connected to the capsule, the expansion medium is arranged in the capsule, and the volume of the expansion medium can be increased along with the increase of the temperature in the container.

Further, a portion of the housing facing the inside of the container is made of a heat conductive material and is in contact with the capsule.

Furthermore, the lock pins are multiple, the annular wall channels are arranged in one-to-one correspondence with the lock pins, and the clamping grooves are annular along the circumferential direction of the inner wall of the inlet or the outlet.

Further, the cover body further comprises a flange extending outward from the outer annular wall, and the flange and the top cover are disposed on opposite sides of the outer annular wall.

According to another aspect of the present invention, there is provided a subtank having an inlet or an outlet, the subtank including a cover structure, the cover structure being as described above.

According to another aspect of the present invention, there is provided a vehicle including a subtank as described above.

According to another aspect of the present invention, there is provided a locking method of a cover structure of a sub-tank, including: and under the condition that the temperature in the container exceeds a preset temperature or the pressure exceeds a preset pressure, controlling the locking structure of the cover body structure to be converted from an unlocking state to a locking state, wherein under the condition that the locking structure is in the locking state, the cover body structure cannot be separated from the auxiliary water tank, and under the condition that the locking structure is in the unlocking state, the cover body structure can be separated from the auxiliary water tank.

By applying the technical scheme of the invention, under the condition that the temperature in the container exceeds the preset temperature or the pressure in the container exceeds the preset pressure, the locking structure can be changed from the unlocking state to the locking state, so that the cover body cannot be separated from the inlet or the outlet of the container, and high-temperature gas cannot escape from the inlet or the outlet, thereby effectively preventing a user from being scalded by escaping high-temperature or high-pressure steam.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 illustrates a cross-sectional structural view of an embodiment of a subtank according to the present invention;

FIG. 2 is an enlarged partial schematic view of a fill port of the auxiliary tank of FIG. 1;

FIG. 3 shows a schematic cross-sectional structural view of an embodiment of a cover structure according to the present invention;

FIG. 4 is a schematic cross-sectional structural view of the cover body of the cover structure of FIG. 3;

FIG. 5 is a cross-sectional schematic view of the locking structure of the cover structure of FIG. 3;

FIG. 6 is a schematic structural view of a housing of the latch structure of FIG. 5;

FIG. 7 is a schematic structural view of a control mechanism of the latch structure of FIG. 5;

FIG. 8 is a schematic view of the cover structure of FIG. 3 in an unlocked position on the auxiliary tank; and

fig. 9 is a schematic view showing a structure in which the cover structure of fig. 3 is locked on the sub-tank.

Wherein the figures include the following reference numerals:

1. a box body; 2. a filling port; 3. filling a cover; 4. a water outlet; 5. a degassing port; 6. a spiral filling groove; 7. a multi-aperture arc panel; 8. an annular wall; 9. an external thread; 10. a card slot; 11. a cover body; 12. a locking structure; 13. a top cover; 14. an outer annular wall; 15. a flange; 16. an internal thread; 17. an inner annular wall; 18. a circumferential wall channel; 19. a slide rail; 24. a control mechanism; 25. a housing; 28. a pin hole; 29. a slide rail; 30. a heat transfer sheet; 31. a capsule body; 32. an expansion medium; 36. and (4) locking pins.

Detailed Description

The cover body structure is suitable for containers such as auxiliary water tanks and the like which are used for containing high-temperature liquid and have the risk of escaping high-temperature steam. The following will describe taking a sub-tank in a cooling system of a vehicle as an example. As shown in fig. 1, a tank body 1 of the auxiliary water tank is provided with a filling port 2 and a water outlet 4, and the cover body structure of the embodiment is a filling cover 3, and the filling cover 3 is covered on the filling port 2.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 2 to 9, the lid structure of the present embodiment includes a lid body 11 and a locking structure 12, wherein the lid body 11 is provided at the annular wall 8 of the filler neck 2, and the locking structure 12 is provided on the lid body 11. The locking structure 12 has a locked state locked with the annular wall 8 and an unlocked state unlocked with the annular wall 8, and when the locking structure 12 is in the locked state, the lid body 11 cannot be separated from the annular wall 8, and when the locking structure 12 is in the unlocked state, the lid body 11 can be separated from the annular wall 8, and when the temperature in the box body 1 exceeds a preset temperature or the pressure in the box body 1 exceeds a preset pressure, the locking structure 12 can be changed from the unlocked state to the locked state.

By applying the technical scheme of the embodiment, when the temperature in the box body 1 exceeds the preset temperature or the pressure in the box body 1 exceeds the preset pressure, the locking structure 12 can be changed from the unlocking state to the locking state, and further, the cover body 11 cannot be separated from the annular wall 8, and high-temperature gas cannot escape from the filling port 2. Thus, the user is not scalded by the escaping high temperature or high pressure steam.

As shown in fig. 4, the cap body 11 of the present embodiment includes a top cap 13, an outer annular wall 14 and an inner annular wall 17, the outer annular wall 14 is disposed along the edge of the top cap 13, the inner annular wall 17 is disposed inside the outer annular wall 14, the annular wall 8 can extend into the gap between the outer annular wall 14 and the inner annular wall 17, and the locking structure 12 is disposed in the inner annular wall 17. In the case where the lid body structure of the present embodiment is provided to cover the filler neck 2, the annular wall 8 of the filler neck 2 is interposed between the outer annular wall 14 and the inner annular wall 17, which improves the sealing effect and reduces the possibility of gas escape.

Preferably, the inner surface of the outer annular wall 14 is provided with an internal thread 16 to match the external thread 9 on the annular wall 8.

As shown in fig. 4, the cap body 11 of the present embodiment further includes a flange 15, the flange 15 extends outward from the outer annular wall 14, and the flange 15 and the top cap 13 are disposed on opposite sides of the outer annular wall 14.

As shown in fig. 5, the locking structure 12 of the present embodiment includes a housing 25, a locking pin 36 and a control mechanism 24, wherein the housing 25 is disposed in the inner annular wall 17, the locking pin 36 is telescopically disposed on the housing 25, an annular wall channel 18 is disposed on the inner annular wall 17 at a position corresponding to the locking pin 36, and a slide rail 19 is embedded in the annular wall channel 18. The housing 25 has a pin hole 28, and a slide rail 29 is disposed in the pin hole 28. The control mechanism 24 can drive the lock pin 36 to move in the pin hole 28 and the annular wall channel 18, the inner side of the annular wall 8 is provided with the clamping groove 10, and under the condition that the locking structure 12 is in a locking state, the lock pin 36 extends into the clamping groove 10 and can be abutted against the groove wall of the clamping groove 10; with the latch structure 12 in the unlocked state, the lock pin 36 retracts into the inner annular wall 17 and disengages from the card slot 10. The structure is simple, the production is easy, and the locking effect is direct and obvious.

Preferably, in the cover structure of the present embodiment, four locking pins 36 are provided along the circumferential direction of the housing 25, the annular wall channel 18 and the pin hole 28 are provided in one-to-one correspondence with the locking pins 36, and the locking groove 10 is annular along the circumferential direction of the inner wall of the annular wall 8. In other embodiments not shown in the figures, a plurality of slots may be provided in the annular wall to enable the cover structure to be locked in different positions.

With the latch structure 12 assembled to the cover body 11, the lock pin 36 can pass through the slide rail 29 and extend into the slide rail 19, but not out of the slide rail 19.

As shown in fig. 3 to 5, the housing 25 of the present embodiment is provided with a positioning protrusion, the inner annular wall 17 is provided with a positioning recess at a position corresponding to the positioning protrusion, and the positioning protrusion and the positioning recess cooperate to ensure that the annular wall channel 18 corresponds to the pin hole 28 and the slide rail 19 corresponds to the slide rail 29.

As shown in fig. 7, the control mechanism 24 of the cover structure of the present embodiment includes a capsule 31 and an expansion medium 32, the capsule 31 is disposed in the housing 25, a latch 36 is connected to the capsule 31, the expansion medium 32 is disposed in the capsule 31, the volume of the expansion medium 32 can be changed according to the temperature change, and when the temperature in the tank 1 or the temperature of the cooling liquid in the tank 1 exceeds a preset value, the volume of the expansion medium 32 expands to push the latch 36 out of the pin hole 28 and into the slot 10, so that the latch structure 12 is converted to the locked state. The expansion medium 32 may be a liquid, gas, or solid medium that is susceptible to thermal expansion.

Preferably, as shown in fig. 6, in the lid structure of the present embodiment, the case 25 is provided with a heat transfer sheet 30 toward the inside of the case 1, and the heat transfer sheet 30 is made of a heat conductive material and is in close contact with the capsule 31 to transfer heat inside the case 1 to the expansion medium 32. In other embodiments not shown in the figures, the heat transfer piece can be movably arranged in the shell, so that the position of the heat transfer piece can be changed along with the change of the pressure inside the box body, the volume of the expansion medium can be controlled, the action of pushing out or retracting the lock pin can be realized, and the locking structure can be converted between the locking state and the unlocking state.

As shown in fig. 9, when the temperature inside the subtank is too high, which may pose a risk of steam scald to the operator, the heat transfer sheet 30 transfers heat to the expansion medium 32, and the expansion medium 32 starts to expand. The temperature gradually rises and the locking pin 36 is pushed out of the slide rails 19 and 29 until it protrudes out of the outer surface of the inner annular wall 17 and is inserted into the card slot 10. At the moment, the high-temperature steam scald prevention safe filling cover 3 is locked by the lock pin 36 and the clamping groove 10, so that a user operator cannot open the filling cover 3, and the steam scald risk is avoided.

As shown in fig. 8, when the temperature inside the subtank decreases, the swelling medium 32 contracts, the locking pin 36 retracts inside the inner annular wall 17, and leaves the locking groove 10, the filling cap 3 is unlocked, and the user can perform normal opening operation.

The application also provides a secondary water tank, as shown in fig. 1, a tank body 1 of the secondary water tank according to the embodiment is provided with a filling opening 2 and a water outlet 4, and a filling cover 3 is covered on the filling opening 2. The filling cap 3 has a cap structure having all or part of the above technical structure. The auxiliary water tank of the embodiment has the advantage of a safety performance cavity.

As shown in fig. 1, the filling port 2 in the auxiliary water tank of the present embodiment is disposed at the top of the tank body 1, and the water outlet 4 is disposed at the bottom of the tank body 1, and is connected to a pipeline near the engine water pump through a pipeline, so as to supplement the coolant to the entire cooling system. The auxiliary water tank of the embodiment further comprises a degassing port 5 and a spiral filling groove 6, wherein the degassing port 5 is also arranged at the top of the tank body 1 and is connected to the top of the engine or the radiator through a pipeline for introducing return liquid steam of the engine or the radiator. The spiral filling groove 6 is correspondingly arranged below the filling port 2, and the spiral filling groove 6 can guide the cooling liquid to flow into the auxiliary water tank and reduce bubbles excited when the cooling liquid is filled.

In order to further reduce the bubbles flowing into the cooling system, the auxiliary water tank of the embodiment is further provided with a porous cambered plate 7 at the position of the water outlet 4, the porous cambered plate 7 of the embodiment is hemispherical and covers the water outlet 4, and a plurality of through holes distributed on the porous cambered plate 7 can effectively prevent the cooling liquid from forming a vortex at the water outlet 4, so that the bubbles are brought into the cooling system.

The application also provides a vehicle, and an embodiment (not shown in the figures) of the vehicle according to the application comprises a secondary water tank which is a secondary water tank containing all or part of the technical structure. The vehicle of this embodiment has that the security is strong, user experience is good advantage.

The application also provides a locking method of the cover body structure of the auxiliary water tank, which specifically comprises the following steps: and under the condition that the temperature in the container exceeds the preset temperature or the pressure exceeds the preset pressure, controlling the locking structure of the cover body structure to be converted from an unlocking state to a locking state, wherein under the condition that the locking structure is in the locking state, the cover body cannot be separated from the auxiliary water tank, and under the condition that the locking structure is in the unlocking state, the cover body can be separated from the auxiliary water tank.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

under the condition that the temperature in the box body exceeds the preset temperature or the pressure in the box body exceeds the preset pressure, the locking structure can be converted to the locking state from the unlocking state, the cover body cannot be separated from the annular wall, and high-temperature gas cannot escape from the filling port. Thus, the user is not scalded by the escaping high temperature or high pressure steam.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A cover structure, characterized in that the cover structure comprises:

a cover body (11) which is arranged at the inlet or the outlet of the container in a covering manner;

the locking structure (12) is arranged on the cover body (11), the locking structure (12) has a locking state locked with the inlet or the outlet and an unlocking state unlocked with the inlet or the outlet, under the condition that the locking structure (12) is in the locking state, the cover body (11) cannot be separated from the inlet or the outlet, under the condition that the locking structure (12) is in the unlocking state, the cover body (11) can be separated from the inlet or the outlet, and under the condition that the temperature in the container exceeds a preset temperature or the pressure in the container exceeds a preset pressure, the locking structure (12) can be changed from the unlocking state to the locking state.

2. The cap structure according to claim 1, characterized in that the cap body (11) comprises a top cap (13), an outer annular wall (14) and an inner annular wall (17), the outer annular wall (14) being arranged along an edge of the top cap (13), the inner annular wall (17) being arranged inside the outer annular wall (14), the inlet or outlet being able to protrude into a gap between the outer annular wall (14) and the inner annular wall (17), the detent structure (12) being arranged in the inner annular wall (17).

3. The cover structure according to claim 2, characterized in that the locking structure (12) comprises a housing (25), a lock pin (36) and a control mechanism (24), the housing (25) is arranged in the inner annular wall (17), the lock pin (36) is telescopically arranged on the housing (25), an annular wall channel (18) is arranged on the inner annular wall (17) at a position corresponding to the lock pin (36), the control mechanism (24) can drive the lock pin (36) to move in the annular wall channel (18), a clamping groove (10) is arranged at the inner side of the inlet or the outlet, and the lock pin (36) extends into the clamping groove (10) and can abut against the groove wall of the clamping groove (10) when the locking structure (12) is in the locking state; when the locking structure (12) is in the unlocked state, the lock pin (36) retracts into the inner annular wall (17) and separates from the catch (10).

4. A cover structure according to claim 3, wherein said control mechanism (24) comprises a bladder (31) and an inflating medium (32), said bladder (31) being arranged in said shell (25), said locking pins (36) being connected to said bladder (31), said inflating medium (32) being arranged in said bladder (31), the volume of said inflating medium (32) being capable of increasing with an increase in the temperature inside said container.

5. The cover structure according to claim 4, characterized in that the portion of the casing (25) facing the inside of the container is made of heat-conducting material and is in contact with the capsule (31).

6. The cover structure according to claim 3, wherein the locking pin (36) is plural, the annular wall channel (18) and the locking pin (36) are arranged in one-to-one correspondence, and the slot (10) is annular along the circumferential direction of the inner wall of the inlet or the outlet.

7. The cover structure according to claim 2, wherein the cover body (11) further comprises a flange (15), the flange (15) projects outwardly from the outer annular wall (14), and the flange (15) and the top cover (13) are provided on opposite sides of the outer annular wall (14).

8. A cistern having an inlet or an outlet, the cistern comprising a cover arrangement, characterised in that the cover arrangement is as claimed in any one of claims 1 to 7.

9. A vehicle comprising a subtank, characterized in that the subtank is the subtank according to claim 8.

10. A locking method of a cover body structure of a secondary water tank is characterized by comprising the following steps:

under the condition that the temperature in the container exceeds a preset temperature or the pressure exceeds a preset pressure, the locking structure of the cover body structure is controlled to be converted from the unlocking state to the locking state,

the cover body structure can not be separated from the auxiliary water tank under the condition that the locking structure is in the locking state, and the cover body structure can be separated from the auxiliary water tank under the condition that the locking structure is in the unlocking state.