阅读说明：本技术 油箱封闭装置 (Fuel tank sealing device ) 是由 钱国钧 于 2020-05-20 设计创作，主要内容包括：本申请公开了一种油箱封闭装置,包括：安装座,用于安装至油箱的注油口；封盖,用于封闭油箱的注油口；锁定件,用于将封盖锁定在封闭油箱注油口的位置；其中,安装座被构造为具有一个环形开口；封盖与安装座构成绕第一轴线的转动连接,锁定件与安装座构成绕第二轴线的转动连接,第一轴线平行于第二轴线；封盖设有锁槽,锁定件设有一个能嵌入锁定槽的锁钩部,当封盖转动至封闭安装座的环形开口时锁钩部能嵌入锁槽中。本申请的有益之处在于：提供一种结构合理可靠且能实现较好的密封效果的油箱封闭装置。(The application discloses oil tank closing device includes: a mount for mounting to a filler neck of a fuel tank; the sealing cover is used for sealing the oil filling port of the oil tank; a locking member for locking the cap in a position closing the tank filler neck; wherein the mounting seat is configured to have an annular opening; the sealing cover and the mounting seat are in rotating connection around a first axis, the locking piece and the mounting seat are in rotating connection around a second axis, and the first axis is parallel to the second axis; the closing cap is equipped with the locked groove, and the locking piece is equipped with a latch hook portion that can imbed the locking groove, and latch hook portion can imbed in the locked groove when the closing cap rotates to the annular opening of closing the mount pad. The application has the advantages that: the oil tank sealing device is reasonable and reliable in structure and can achieve a good sealing effect.)

1. A fuel tank closure device characterized by:

the tank closure device comprises:

a mount for mounting to a filler neck of a fuel tank;

the sealing cover is used for sealing the oil filling port of the oil tank;

a locking member for locking the cap in a position closing the tank filler neck;

wherein the mounting seat is configured to have an annular opening; the sealing cover and the mounting seat are in rotating connection around a first axis, the locking piece and the mounting seat are in rotating connection around a second axis, and the first axis is parallel to the second axis; the closing cap is equipped with the locked groove, the locking piece is equipped with one can imbed the latch hook portion of locking groove, works as the closing cap rotates to the closure the annular opening of mount pad the latch hook portion can imbed in the locked groove.

2. A fuel tank closure device as claimed in claim 1, wherein:

the tank closure device comprises:

and the elastic piece is used for enabling the locking piece to rotate towards the direction of locking the cover.

3. A fuel tank closure device as claimed in claim 2, wherein:

the elastic part is a torsion spring.

4. A fuel tank closure device as claimed in claim 1, wherein:

the locking piece is also provided with a contact part which is exposed outside the cover when the locking hook part is embedded into the locking groove.

5. A fuel tank closure device as claimed in claim 4, wherein:

the lock hook part comprises an inclined plane and a limiting plane, and the inclined plane is obliquely intersected with the limiting plane.

6. A fuel tank closure device as claimed in claim 1, wherein:

the rotary connection part of the sealing cover and the mounting seat and the rotary connection part of the locking piece and the mounting seat are respectively arranged on two opposite sides of the annular opening.

7. A fuel tank closure device as claimed in claim 1, wherein:

the first axis and the second axis are respectively arranged on two opposite sides of the annular opening.

8. A fuel tank closure device as claimed in claim 1, wherein:

the tank closure device further comprises:

a seal assembly mounted to the closure cap to seal a filler neck of a fuel tank;

the seal assembly includes:

a guide post having one end fixed to the cap;

an end member fixed to the other end of the guide post;

the inner pressing sheet is provided with a first through hole for the guide post to pass through;

the sealing gasket is made of soft materials;

the outer pressing sheet is provided with a second through hole for the guide post to pass through;

the spiral spring is sleeved on the outer side of the guide post, and two ends of the spiral spring respectively support against the inner pressing sheet and the inner side of the sealing cover;

the inner pressing sheet, the sealing gasket and the outer pressing sheet form a whole body capable of sliding along the guide column;

the outer edge of the outer pressing sheet is positioned at the inner side of the outer edge of the sealing gasket.

9. A fuel tank closure device as claimed in claim 8, wherein:

the tank closure device further comprises:

the temperature adjusting disc is arranged between the sealing cover and the outer pressing sheet;

the temperature adjusting disc is provided with a plurality of accommodating cavities, phase-change materials are arranged in the accommodating cavities, and the phase-change temperature range of the phase-change materials is 35-45 ℃; the temperature adjusting disc and the inner pressing sheet are made of metal materials.

10. A fuel tank closure device as claimed in claim 9, wherein:

the mount pad is equipped with and holds the recess, it is equipped with phase change material to hold the recess inside, it is equipped with a packing ring to hold the recess notch, the packing ring is made for plastic materials.

Technical Field

The application relates to an oil tank device, in particular to an oil tank sealing device.

Background

Disclosure of Invention

A fuel tank closure device comprising: a mount for mounting to a filler neck of a fuel tank; the sealing cover is used for sealing the oil filling port of the oil tank; a locking member for locking the cap in a position closing the tank filler neck; wherein the mounting seat is configured to have an annular opening; the sealing cover and the mounting seat are in rotating connection around a first axis, the locking piece and the mounting seat are in rotating connection around a second axis, and the first axis is parallel to the second axis; the closing cap is equipped with the locked groove, the locking piece is equipped with one can imbed the latch hook portion of locking groove, works as the closing cap rotates to the closure the annular opening of mount pad the latch hook portion can imbed in the locked groove.

Further, the tank closure device includes: and the elastic piece is used for enabling the locking piece to rotate towards the direction of locking the cover.

Further, the elastic member is a torsion spring.

Further, the locking member is provided with a contact portion exposed to the outside of the cover when the locking hook portion is fitted into the locking groove.

Further, the locking hook portion comprises an inclined surface and a limiting surface, and the inclined surface is obliquely intersected with the limiting surface.

Furthermore, the rotary connection position of the sealing cover and the mounting seat and the rotary connection position of the locking piece and the mounting seat are respectively arranged on two opposite sides of the annular opening.

Further, the first axis and the second axis are disposed on opposite sides of the annular opening, respectively.

Further, the tank closure device further includes: a seal assembly mounted to the closure cap to seal a filler neck of a fuel tank; the seal assembly includes: a guide post having one end fixed to the cap; an end member fixed to the other end of the guide post; the inner pressing sheet is provided with a first through hole for the guide post to pass through; the sealing gasket is made of soft materials; the outer pressing sheet is provided with a second through hole for the guide post to pass through; the spiral spring is sleeved on the outer side of the guide post, and two ends of the spiral spring respectively support against the inner pressing sheet and the inner side of the sealing cover; the inner pressing sheet, the sealing gasket and the outer pressing sheet form a whole body capable of sliding along the guide column; the outer edge of the outer pressing sheet is positioned at the inner side of the outer edge of the sealing gasket.

Further, the tank closure device further includes: the temperature adjusting disc is arranged between the sealing cover and the outer pressing sheet; the temperature adjusting disc is provided with a plurality of accommodating cavities, phase-change materials are arranged in the accommodating cavities, and the phase-change temperature range of the phase-change materials is 35-45 ℃; the temperature adjusting disc and the inner pressing sheet are made of metal materials.

Further, the mount pad is equipped with and holds the recess, it is equipped with phase change material to hold the recess inside, it is equipped with a packing ring to hold the recess notch, the packing ring is made for plastic materials.

The application has the advantages that: the oil tank sealing device is reasonable and reliable in structure and can achieve a good sealing effect.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:

FIG. 1 is a schematic view of a fuel tank closure according to an embodiment of the present application;

FIG. 2 is a schematic view of the fuel tank closure of the embodiment of FIG. 1 in an open configuration (with the gasket and the tank seat removed);

FIG. 3 is a schematic cross-sectional view of the fuel tank closure of the embodiment of FIG. 1 in an open state;

FIG. 4 is a schematic cross-sectional view of the fuel tank closure of the embodiment of FIG. 1 in a closed state;

FIG. 5 is a schematic view of a partial block diagram of the embodiment shown in FIG. 1;

FIG. 6 is a schematic structural view of the thermal plate in the embodiment of FIG. 1;

FIG. 7 is a schematic cross-sectional view of the thermal conditioning disk of the embodiment of FIG. 1;

fig. 8 is a partially enlarged schematic view of fig. 7.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

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 application will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1 to 8, the tank closure device 100 includes: mount 101, cover 102, locking member 103, resilient member 104, seal assembly 105.

Wherein the mounting seat 101 is for mounting to a filler neck 201 of a fuel tank; the cover 102 is used for closing a fuel filling opening 201 of the fuel tank; the lock member 103 is used to lock the cover 102 in a position closing the tank filler 201.

The tank is provided with a filler socket 200, which filler socket 200 is provided with a filler opening 201 of the tank.

The mounting 101 is configured with an annular opening 1011 aligned with the filler neck 201 of the tank, and the annular opening 1011 has an inner circumference of a size comparable to the size of the filler neck 201 of the tank.

The mounting 101 may be made mainly of a metal material, and may be mounted to a position of a filler neck of the oil tank by welding.

Alternatively, the mounting seat 101 may be provided with internal threads on the inside thereof, and the filler neck seat 200 of the fuel tank may be provided with external threads, which may be fixedly coupled by screwing, or the mounting seat 101 may be coupled to the fuel tank by welding or the like.

Specifically, the inner ring wall of the mounting seat 101 is provided with a ring groove 1012, and an annular ring 106 is provided in the ring groove 1012, and the annular ring 106 is made of a rubber material. The function of the annular ring 106 is to further ensure the sealing effect of the oil filler point 201.

A seal assembly 105 is mounted to the cover 102 to seal the filler neck 201 of the tank, and in particular, the seal assembly 105 comprises: guide column 1051, end piece 1052, inner lobe 1053, sealing gasket 1054, outer lobe 1055, and coil spring 1056.

Wherein one end of the guide post 1051 is fixed to the cover 102.

Specifically, a fixing seat 1021 is formed on the inner side of the cover 102, a fixing groove 1022 is formed inside the fixing seat 1021, an external thread is formed on the outer side of the fixing seat 1021, a stepped structure is formed at one end of the guide post 1051 and is disposed in the fixing groove 1022, and then the sleeve member 107 is provided with a through hole for the guide post 1051 to pass through, and an internal thread matched with the external thread on the periphery of the fixing seat 1021 is also provided. The sleeve member 107 is mounted to the fixing base 1021 by a screw connection, thereby restraining the stepped structure of the guide post 1051 to achieve fixation.

As an alternative, an inner thread groove is formed inside the cover 102, and an outer thread is formed at one end of the guide post 1051, and the guide post 1051 can be fixed by screwing.

The end piece 1052 is secured to the other end of the guide post 1051. preferably, the end piece 1052 can be configured as a nut member that is secured to the other end of the guide post 1051 by a threaded connection, the action of the end piece 1052 restraining the position of the gasket 1054.

The inner pressing piece 1053 is provided with a first through hole for the guide post 1051 to pass through; the sealing gasket 1054 is made of a soft material; the outer pressing sheet 1055 is provided with a second through hole for the guide post 1051 to pass through; the spiral spring 1056 is sleeved outside the guide post 1051, and two ends of the spiral spring respectively support against the inner sides of the inner pressing sheet 1053 and the sealing cover 102; the inner pressing sheet 1053, the sealing gasket 1054 and the outer pressing sheet 1055 form a whole body which can slide along the guide column 1051; the outer edge of the outer pressure plate 1055 is located inside the outer edge of the sealing gasket 1054.

Thus, when the cover 102 closes the annular opening 1011 of the mounting seat 101, the coil spring 1056 is always pressed against the inner pressing piece 1053 so that the sealing gasket 1054 is always pressed against the fuel filler neck of the fuel tank, thereby ensuring the sealing property.

The cover 102 is in rotational connection with the mounting 101 about a first axis, and the locking member 103 is in rotational connection with the mounting 101 about a second axis. The rotational connection of the cover 102 to the mounting seat 101 and the rotational connection of the locking member 103 to the mounting seat 101 are disposed on opposite sides of the annular opening 1011, respectively, and the first axis and the second axis are disposed on opposite sides of the annular opening 1011, respectively, from the position of the rotational axis.

The elastic member 104 is used to rotate the locking member 103 in the direction of locking the cover 102, and preferably, the elastic member 104 is a torsion spring.

The cover 102 may be rotated from the closed position to the open position by rotation, which may ensure that the cover 102 is not lost or left in place after opening, without the use of a conventional pull cord.

The locking member 103 itself may also be rotated, which under the action of the resilient member 104 is the position of the steering lock cover 102. Specifically, the cover 102 is provided with a locking groove 1023, and the locking member 103 is provided with a locking hook portion capable of being inserted into the locking groove, and the locking hook portion is capable of being inserted into the locking groove 1023 when the cover 102 is rotated to close the annular opening 1011 of the mounting base 101.

As a further scheme, the latch hook portion includes a slant surface 1031 and a limiting surface 1032, and the slant surface 1031 and the limiting surface 1032 intersect obliquely.

For the convenience of opening, the locking member 103 is further provided with a contact portion 1033, and the contact portion 1033 is exposed to the outside of the cover 102 when the locking hook portion is fitted into the locking groove 1023.

With the above arrangement, when the cover 102 is rotated to the closed position, the notch of the locking groove 1023 contacts the inclined surface 1031, so that the locking member 103 moves in the direction against the elasticity of the elastic member 104, and as the cover 102 is rotated, the locking groove 1023 is locked by the limiting surface 1032, so that the cover 102 is locked in the closed position, and the locking member 103 is always kept turned to a position where the limiting surface 1032 is tightly fitted into the locking groove 1023 due to the elastic member 104.

When the cover 102 needs to be opened, the finger can press the contact portion 1033 to rotate the locking member 103, so that the limiting surface 1032 is disengaged from the locking groove 1023 to release the cover 102.

In order to improve the problem of sealing failure caused by thermal expansion and cold contraction, as an extension scheme, the oil tank closing device 100 further comprises a temperature adjusting disc 108.

The thermal conditioning disk 108 is disposed between the cap 102 and the outer platen 1055; the temperature-adjusting plate 108 is provided with a plurality of accommodating cavities 1083, the accommodating cavities 1083 are filled with phase-change materials 1091, and the phase-change temperature range of the phase-change materials 1091 is 35-45 ℃; the temperature-adjusting plate 108 and the inner pressure sheet 1053 are made of a metal material.

The function of the thermal plate 108 is to absorb heat by the phase change material 1091 when the temperature rises to the phase change temperature, and then to reduce the temperature of the sealing gasket 1054 by the thermal conduction of the thermal plate 108 itself and the inner pressure plate. And when the temperature is reduced, the phase change material 1091 emits heat to be transferred to the sealing gasket 1054.

By adopting the scheme, the temperature change of the sealing gasket 1054 can be reduced, so that the number of cold and hot circulation is reduced, and the service life is prolonged and the sealing effect is improved.

As a further preferable scheme, the accommodating cavity 1083 is filled with two different phase change materials 1091, the two phase change materials 1091 are not both placed in one accommodating cavity 1083, but the temperature adjustment plate 108 is formed with a plurality of accommodating cavities 1083 arranged along the circumferential direction of the temperature adjustment plate 108, and the two phase change materials 1091 are arranged in different accommodating cavities 1083 at intervals. The phase change temperatures of the two phase change materials 1091 are different, so that the temperature adjustment interval can be expanded.

The thermal plate 108 may be formed in two halves, each half 1081,1082 may be slotted, and the two halves may be abutted to form the receiving cavity 1083, and the two halves may be fixed by bolts and nuts (not shown), and the thermal plate 108 may be provided with embedded screw holes to ensure that the surface of the thermal plate 108 is smooth.

In addition, the two halves 1081,1082 may be formed with protrusions and grooves to form a labyrinth structure on both sides of the receptacle 1083 to prevent the phase change material 1091 within the receptacle 1083 from leaking.

As a specific solution, the phase change material 1091 may be encapsulated in a plastic film and then placed in the accommodating cavity 1083.

Specifically, the mounting seat 101 is provided with a receiving groove 1012, the receiving groove 1012 is internally provided with a phase change material 1092, a notch of the receiving groove 1012 is provided with a gasket 110, the gasket 110 is made of a plastic material, and the gasket 110 is used for closing the receiving groove 1012, and alternatively, the notch of the receiving groove 1012 of the mounting seat 101 can be encapsulated by a heat-conducting gel pouring manner.

In this way, the total amount of the phase change material can be increased, and the phase change material 1092 can relieve the thermal expansion and contraction of the mounting base 101 through phase change.

Preferably, the thermal plate 108 is made into a disk structure and is abutted by the elastic member 104 so that the thermal plate 108 can move synchronously with the sealing assembly 105.

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