CN220996121U - Fuel tank valve and vehicle - Google Patents
Fuel tank valve and vehicle Download PDFInfo
- Publication number
- CN220996121U CN220996121U CN202323123176.XU CN202323123176U CN220996121U CN 220996121 U CN220996121 U CN 220996121U CN 202323123176 U CN202323123176 U CN 202323123176U CN 220996121 U CN220996121 U CN 220996121U
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- pressure maintaining
- valve
- fuel tank
- valve body
- plate
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- 239000002828 fuel tank Substances 0.000 title claims abstract description 70
- 238000009434 installation Methods 0.000 claims abstract description 21
- 230000002093 peripheral effect Effects 0.000 claims description 12
- 230000005484 gravity Effects 0.000 claims description 5
- 230000013011 mating Effects 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract description 5
- 239000010959 steel Substances 0.000 abstract description 5
- 230000004308 accommodation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
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- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The utility model provides a fuel tank valve and a vehicle. The plate-shaped pressure maintaining body is arranged, the area of the valve body installation cavity of the fuel tank connector in the horizontal direction is fully utilized, the occupied space in the height direction can be greatly reduced relative to the scheme of the cylindrical pressure maintaining shell or the steel ball on the premise of maintaining the required weight, namely, the distance between the valve body and the inner cavity top surface of the valve body installation cavity is greatly reduced, the valve is further upwards arranged, the upper limit of the valve closing height is improved, and the risk of dynamic leakage of the valve is reduced.
Description
Technical Field
The utility model belongs to the technical field of fuel tank valves, and particularly relates to a fuel tank valve and a vehicle.
Background
The fuel tanks currently on the market generally have two requirements: 1. refuel limited amount (overfill prohibited); 2. in some specific cases the fuel tank can be vented normally: the pressure can be released in time when positive pressure exists in the fuel tank or the air can be supplemented in time to the fuel tank when negative pressure exists in the fuel tank. In order to meet the above requirements of a fuel tank, a fuel tank is generally provided with a filling limit valve and at least one tilting valve, and a combination valve integrating the two valve functions, which valves belong to the fuel tank valve.
In the conventional fuel tank valve, a pressure maintaining device is generally provided for maintaining a certain opening pressure. However, most of the pressure maintaining structures of valves in the market at present are cylinders (for example, a pressure maintaining shell is arranged, a disc is arranged in a cavity of the pressure maintaining shell) or steel balls, so that the occupied space of the whole valve is increased, the whole valve is extruded to occupy the height of the inner space of the fuel tank connector when being connected with the external fuel tank connector, the whole valve is not beneficial to upward arrangement in space, and risks exist for closing height and dynamic leakage of the valve.
Disclosure of utility model
The utility model aims to solve the technical problem of providing a fuel tank valve and a vehicle, so as to solve the problem that the existing fuel tank valve occupies a relatively high internal space of a fuel tank connector due to a pressure maintaining structure.
In order to solve the problems, the technical scheme of the utility model is as follows:
the utility model relates to a fuel tank valve, comprising:
a fuel tank connector for connection to an external fuel tank, the fuel tank connector having a valve body mounting cavity in communication with an outflow passage for connection to an external conduit;
the valve body is arranged in the valve body installation cavity; wherein, at least part of the valve body and the valve body mounting cavity are matched to form a pressure maintaining containing cavity, and the pressure maintaining containing cavity is communicated with the output channel and the outflow channel of the valve body;
The plate-shaped pressure maintaining body is connected to the pressure maintaining accommodating cavity in a sliding manner and is used for covering and closing the output channel of the valve body under the action of gravity;
Wherein, the plate-shaped pressure maintaining body is provided with a through communication channel, and the communication channel is not positioned in the output channel of the valve body.
The fuel tank valve also comprises a plurality of first limit units positioned in the pressure maintaining accommodating cavity;
The first limiting units are arranged on the side wall of the inner cavity of the valve body installation cavity at intervals along the circumferential direction, and the plate-shaped pressure maintaining body is provided with first matching units which are in one-to-one correspondence with the first limiting units and are used for limiting the rotation of the plate-shaped pressure maintaining body in the circumferential direction.
According to the fuel tank valve disclosed by the utility model, the communication channel is at least one through hole formed in the plate-shaped pressure maintaining body, and the through hole is not located in the output channel of the valve body.
In the fuel tank valve, at least one columnar bulge is arranged on the top surface of the inner cavity of the valve body installation cavity.
The fuel tank valve of the utility model also comprises an annular pressure maintaining body;
The annular pressure maintaining body is arranged on the surface of the plate-shaped pressure maintaining body facing the valve body, and the annular pressure maintaining body is connected to the outer edge of the plate-shaped pressure maintaining body;
An annular accommodating cavity is formed between the peripheral side wall of the top of the valve body and the inner cavity side wall of the valve body mounting cavity and is used for accommodating the annular pressure maintaining body;
According to the fuel tank valve disclosed by the utility model, the thickness of the annular pressure maintaining body is larger than that of the plate-shaped pressure maintaining body.
The fuel tank valve also comprises a plurality of second limit units positioned in the annular accommodating cavity;
The second limiting units are arranged on the outer peripheral side wall of the valve body and/or the inner cavity side wall of the valve body mounting cavity at intervals along the circumferential direction; the annular pressure maintaining body is provided with second matching units which are in one-to-one correspondence with the second limiting units and are used for limiting the rotation of the annular pressure maintaining body and the plate-shaped pressure maintaining body in the circumferential direction.
According to the fuel tank valve, the second limiting units are strip-shaped limiting protrusions vertically arranged on the outer peripheral side wall of the valve body, and the second matching units are strip-shaped limiting grooves vertically arranged on the annular pressure-maintaining body.
According to the fuel tank valve disclosed by the utility model, the annular pressure maintaining body and the plate-shaped pressure maintaining body are integrally formed.
A vehicle of the utility model includes a fuel tank valve as described in any of the above.
By adopting the technical scheme, the utility model has the following advantages and positive effects compared with the prior art:
1. According to the embodiment of the utility model, the valve body is mounted to the fuel tank connector, the pressure maintaining accommodating cavity is formed between the valve body and the valve body mounting cavity of the fuel tank connector, the plate-shaped pressure maintaining body is further arranged in the pressure maintaining accommodating cavity in a sliding mode, and the self-gravity of the plate-shaped pressure maintaining body is used for maintaining pressure and closing the output channel of the valve body. The plate-shaped pressure maintaining body is arranged, the area of the valve body installation cavity of the fuel tank connector in the horizontal direction is fully utilized, the occupied space in the height direction can be greatly reduced relative to the scheme of the cylindrical pressure maintaining shell or the steel ball on the premise of maintaining the required weight, namely, the distance between the valve body and the inner cavity top surface of the valve body installation cavity is greatly reduced, the valve is further upwards arranged, the upper limit of the valve closing height is improved, and the risk of dynamic leakage of the valve is reduced.
2. According to the embodiment of the utility model, the annular pressure maintaining body is further arranged below the plate-shaped pressure maintaining body, the corresponding annular accommodating cavity is formed between the peripheral side wall of the top of the valve body and the inner cavity side wall of the valve body mounting cavity, the height of the valve body is utilized as much as possible, the thickness of the annular pressure maintaining body can be made larger, the thickness of the plate-shaped pressure maintaining body connected with the annular pressure maintaining body can be further made thinner, namely, the weight is loaded on the annular pressure maintaining body as much as possible, the thickness of the plate-shaped pressure maintaining body only needs to realize the effect of closing the outflow channel, and therefore, the distance between the valve body and the inner cavity top surface of the valve body mounting cavity is further reduced, and the valve is further upwards arranged.
Drawings
FIG. 1 is a schematic illustration of a fuel tank valve according to a first embodiment of the present utility model;
FIG. 2 is a schematic illustration of a fuel tank valve according to a second embodiment of the present utility model;
FIG. 3 is a schematic view of a plate-like pressure maintaining body and an annular pressure maintaining structure of a fuel tank valve according to a second embodiment of the present utility model;
Fig. 4 is another schematic diagram of a plate-shaped pressure maintaining body and an annular pressure maintaining structure of a fuel tank valve according to a second embodiment of the utility model.
Reference numerals illustrate: 1. a fuel tank connector; 101. a valve body accommodating chamber; 102. an outflow channel; 103. columnar bulges; 104. a pressure maintaining accommodating cavity; 105. an annular accommodating chamber; 2. a plate-shaped pressure maintaining body; 201. a through hole; 3. a valve body; 301. an output channel; 4. an annular pressure maintaining body; 401. a strip-shaped limit groove.
Detailed Description
The utility model provides a fuel tank valve and a vehicle, which are further described in detail below with reference to the accompanying drawings and specific embodiments. Advantages and features of the utility model will become more apparent from the following description and from the claims.
Example 1
Referring to fig. 1, in one embodiment, a fuel tank valve includes a fuel tank connector 1, a valve body 3, and a plate-like pressure maintaining body 2.
The fuel tank connector 1 is for connection to an external fuel tank; the fuel tank connector 1 is provided with a valve body installation cavity in communication with an outflow passage 102 (specifically, an outlet pipe, and a passage in the outlet pipe is the outflow passage 102) for connecting an external pipe. The valve body 3 is configured to be mounted to a valve body mounting cavity. At least a portion of the valve body 3 and the valve body mounting cavity cooperate to form a pressure-maintaining accommodating cavity 104 (i.e. the valve body 3 is mounted in the valve body mounting cavity and occupies a part of the space, and the remaining space is the pressure-maintaining accommodating cavity 104), and the pressure-maintaining accommodating cavity 104 is communicated with the output channel 301 of the valve body 3 and the outflow channel 102.
The plate-shaped pressure maintaining body 2 (the specific contour may be circular, i.e. similar to the shape of a disc) is configured to be slidably connected to the pressure maintaining accommodating cavity 104, so as to cover and close the output channel 301 of the valve body 3 under the action of self gravity, thereby maintaining the preset opening pressure of the output channel 301. The plate-shaped pressure maintaining body 2 is provided with a through communication channel, and the communication channel is prevented from being located in the output channel 301 of the valve body 3, so that after the plate-shaped pressure maintaining body 2 is lifted, the gas in the valve body 3 can be quickly discharged to the pressure maintaining accommodating cavity 104 and the outflow channel 102 through the communication channel.
In this embodiment, the valve body 3 is mounted to the fuel tank connector 1, and a pressure-maintaining accommodating cavity 104 is formed between the valve body 3 and the valve body mounting cavity of the fuel tank connector 1, and the plate-shaped pressure-maintaining body 2 is further slidably disposed in the pressure-maintaining accommodating cavity 104, so that the output channel 301 of the valve body 3 is pressure-maintaining closed by the gravity of the plate-shaped pressure-maintaining body 2. The plate-shaped pressure maintaining body 2 is arranged, the area of the valve body installation cavity of the fuel tank connector 1 in the horizontal direction is fully utilized, so that the occupied space in the height direction can be greatly reduced relative to the scheme of the cylindrical pressure maintaining shell or the steel ball on the premise of maintaining the required weight of the plate-shaped pressure maintaining body 2, namely, the distance between the valve body 3 and the inner cavity top surface of the valve body installation cavity is greatly reduced, the further upward arrangement of the valve is facilitated, the upper limit of the closing height of the valve is improved, and the risk of dynamic leakage of the valve is reduced.
The specific structure of the fuel tank valve of this embodiment will be further described below:
In this embodiment, the fuel tank valve may further include a plurality of first limit units located in the pressure-maintaining accommodating chamber 104. The first limiting units are arranged on the side wall of the inner cavity of the valve body installation cavity at intervals along the circumferential direction, and the plate-shaped pressure maintaining body 2 is provided with first matching units which are in one-to-one correspondence with the first limiting units and are used for limiting the rotation of the plate-shaped pressure maintaining body 2 in the circumferential direction. The first limiting unit can be a vertical strip-shaped protrusion arranged on the side wall of the inner cavity of the valve body mounting cavity, and the first matching unit can be a limiting groove arranged on the outer edge of the plate-shaped pressure maintaining body 2, and the limiting groove is blocked by the vertical strip-shaped protrusion to limit circumferential rotation; or the first limiting unit may be a vertical limiting groove formed on the inner cavity side wall of the valve body mounting cavity, then the first matching unit may be a limiting protrusion formed on the outer edge of the plate-shaped pressure maintaining body 2, and the first matching unit is clamped into the vertical limiting groove through the limiting protrusion to achieve a required limiting function, which is not limited in detail herein.
In this embodiment, the flow channel may be at least one through hole 201 formed in the plate-shaped pressure maintaining body 2, and the through hole 201 is not located in the output channel 301 of the valve body 3. The through hole 201 can be used as a channel for outputting air flow, that is, when the plate-shaped pressure maintaining body 2 slides upwards under the action of pressure, a gap is generated between the plate-shaped pressure maintaining body 2 and the output channel 301 of the valve body 3, and the air in the valve body 3 can flow out between the top surface of the valve body 3 and the lower surface of the plate-shaped pressure maintaining body 2, then smoothly flows out to between the upper surface of the plate-shaped pressure maintaining body 2 and the top surface of the valve body mounting cavity through the through hole 201, and is discharged to an external pipeline through the outflow channel 102.
Specifically, the number of the through holes 201 may be three or four or more, which are arranged at equal intervals in the circumferential direction on the plate-like pressure maintaining body 2, and are not located in the central region of the plate-like pressure maintaining body 2.
In this embodiment, at least one columnar protrusion 103 is disposed on the top surface of the inner cavity of the valve body installation cavity, a gap is left between the bottom of the columnar protrusion 103 and the non-lifted plate-shaped pressure maintaining body 2, and the bottom surfaces of several columnar protrusions 103 form a plane, which is mainly used for reducing vibration when the plate-shaped pressure maintaining body 2 contacts with them. The number of the columnar protrusions 103 can be three, four or more, and the columnar protrusions are uniformly distributed on the top surface of the inner cavity of the valve body installation cavity.
In the present embodiment, the weight of the plate-shaped pressure maintaining body 2 is located within the preset pressure maintaining interval, so that it can satisfy the required pressure maintaining performance.
In this embodiment, the valve body 3 may specifically include a casing, a valve housing, a float, an elastic member, and the casing may be configured to be sleeved with the valve housing from the bottom and form a float accommodating cavity in cooperation, the top of the valve housing is provided with the outflow channel 102, the float is slidably connected in the float accommodating cavity and is connected with the casing through the elastic member, and the float is used to counteract the elastic force of the elastic member under the action of oil to float upwards and close the outflow channel 102. The top surface of the valve housing may be provided with an annular protrusion corresponding to the position of the outflow channel 102, so that the outflow channel 102 may be closed by better matching with the plate-shaped pressure maintaining structure.
Of course, in other embodiments, the shape of the plate-shaped pressure maintaining body 2 may take other forms, for example, the upper surface or the lower surface of the plate-shaped pressure maintaining body 2 may be provided in the form of an arc with a convex or concave cross section, which is not particularly limited herein.
Example two
Referring to fig. 2 to 4, this embodiment further provides a fuel tank valve further including an annular pressure maintaining body 4 based on the first embodiment.
The annular pressure maintaining body 4 may be disposed on a surface of the plate-shaped pressure maintaining body 2 facing the valve body 3, and the annular pressure maintaining body 4 is connected to an outer edge of the plate-shaped pressure maintaining body 2 (i.e. forms a bowl-like structure).
In order to adapt to the bowl-shaped structure, an annular accommodating cavity 105 is formed between the outer peripheral side wall of the top of the valve body 3 and the inner cavity side wall of the valve body mounting cavity, and is used for accommodating the annular pressure maintaining body 4.
Wherein, the thickness of the annular pressure maintaining body 4 (refer to the thickness thereof in the diameter direction) may be set to be larger than the thickness of the plate-shaped pressure maintaining body 2 (refer to the thickness thereof in the height direction), i.e., the entire weight is arranged as much as possible onto the annular pressure maintaining body 4, so that the thickness of the plate-shaped pressure maintaining body 2 may be minimized.
According to the embodiment, the annular pressure maintaining body 4 connected with the annular pressure maintaining body 2 is further arranged below the annular pressure maintaining body 2, the corresponding annular accommodating cavity 105 is formed between the outer peripheral side wall of the top of the valve body 3 and the inner cavity side wall of the valve body installation cavity, the height of the valve body 3 is utilized as much as possible, the thickness of the annular pressure maintaining body 4 can be made larger, the thickness of the annular pressure maintaining body 2 connected with the annular pressure maintaining body can be further made thinner, namely, the weight is loaded on the annular pressure maintaining body 4 as much as possible, the thickness of the annular pressure maintaining body 2 only needs to achieve the effect of closing the outflow channel 102, and therefore the distance between the valve body 3 and the inner cavity top surface of the valve body installation cavity is further reduced, and the valve is further upwards arranged.
In this embodiment, the first limiting unit and the first matching unit in the first embodiment are not needed, but replaced by the second limiting unit and the second matching unit, where the second limiting unit is configured to be located in the annular accommodating cavity 105.
Wherein the second limiting units can be arranged on the outer peripheral side wall of the valve body 3 and/or the inner cavity side wall of the valve body mounting cavity at intervals along the circumferential direction. The annular pressure maintaining body 4 is provided with second matching units which are in one-to-one correspondence with the second limiting units and are used for limiting the rotation of the annular pressure maintaining body 4 and the plate-shaped pressure maintaining body 2 in the circumferential direction.
Specifically, the second limiting unit is a strip-shaped limiting protrusion vertically arranged on the outer peripheral side wall of the valve body 3, and the second matching unit is a strip-shaped limiting groove 401 vertically arranged on the annular pressure maintaining body 4. Of course, in other embodiments, the strip-shaped limiting protrusions may be disposed on the inner cavity side wall of the valve body installation cavity, or the second limiting units may be vertical limiting grooves formed on the outer peripheral side wall of the valve body 3 and/or the inner cavity side wall of the valve body installation cavity, and the second matching units may be corresponding limiting protrusions disposed on the annular pressure-maintaining body 4, so as to achieve the limiting function.
In this embodiment, the annular pressure maintaining body 4 and the plate-shaped pressure maintaining body 2 are integrally formed, and the material may be SUS304, SUS303, or other materials meeting the requirements.
In the present embodiment, the thickness of the plate-like pressure retaining body 2 may be specifically set to 1mm or more, and the thickness of the annular pressure retaining body 4 may be specifically set to 1mm or more.
Example III
The present embodiment provides a vehicle including the fuel tank valve of the first or second embodiment. By mounting the valve body 3 to the fuel tank connector 1 and forming the pressure-maintaining accommodation chamber 104 between the valve body 3 and the valve body mounting chamber of the fuel tank connector 1, and further slidably setting the plate-like pressure-maintaining body 2 in the pressure-maintaining accommodation chamber 104, the output passage 301 of the valve body 3 is pressure-maintaining closed by the self gravity of the plate-like pressure-maintaining body 2. The plate-shaped pressure maintaining body 2 is arranged, the area of the valve body installation cavity of the fuel tank connector 1 in the horizontal direction is fully utilized, so that the occupied space in the height direction can be greatly reduced relative to the scheme of the cylindrical pressure maintaining shell or the steel ball on the premise of maintaining the required weight of the plate-shaped pressure maintaining body 2, namely, the distance between the valve body 3 and the inner cavity top surface of the valve body installation cavity is greatly reduced, the further upward arrangement of the valve is facilitated, the upper limit of the closing height of the valve is improved, and the risk of dynamic leakage of the valve is reduced.
The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited to the above embodiments. Even if various changes are made to the present utility model, it is within the scope of the appended claims and their equivalents to fall within the scope of the utility model.
Claims (10)
1. A fuel tank valve, comprising:
a fuel tank connector for connection to an external fuel tank, the fuel tank connector having a valve body mounting cavity in communication with an outflow passage for connection to an external conduit;
the valve body is arranged in the valve body installation cavity; wherein, at least part of the valve body and the valve body mounting cavity are matched to form a pressure maintaining containing cavity, and the pressure maintaining containing cavity is communicated with the output channel and the outflow channel of the valve body;
The plate-shaped pressure maintaining body is connected to the pressure maintaining accommodating cavity in a sliding manner and is used for covering and closing the output channel of the valve body under the action of gravity;
Wherein, the plate-shaped pressure maintaining body is provided with a through communication channel, and the communication channel is not positioned in the output channel of the valve body.
2. The fuel tank valve of claim 1, further comprising a plurality of first limit units located in the pressure maintaining volume;
The first limiting units are arranged on the side wall of the inner cavity of the valve body installation cavity at intervals along the circumferential direction, and the plate-shaped pressure maintaining body is provided with first matching units which are in one-to-one correspondence with the first limiting units and are used for limiting the rotation of the plate-shaped pressure maintaining body in the circumferential direction.
3. The fuel tank valve of claim 1, wherein the communication passage is at least one through hole opened in the plate-like pressure maintaining body.
4. A fuel tank valve as claimed in claim 1, wherein the top surface of the inner cavity of the valve body mounting cavity is provided with at least one stud.
5. The fuel tank valve of claim 1, further comprising an annular pressure maintaining body;
The annular pressure maintaining body is arranged on the surface of the plate-shaped pressure maintaining body facing the valve body, and the annular pressure maintaining body is connected to the outer edge of the plate-shaped pressure maintaining body;
an annular accommodating cavity is formed between the peripheral side wall of the top of the valve body and the inner cavity side wall of the valve body mounting cavity and is used for accommodating the annular pressure maintaining body.
6. The fuel tank valve of claim 5, wherein the annular dwell body has a thickness greater than a thickness of the plate dwell body.
7. The fuel tank valve of claim 5, further comprising a plurality of second limit units positioned within said annular receiving cavity;
The second limiting units are arranged on the outer peripheral side wall of the valve body and/or the inner cavity side wall of the valve body mounting cavity at intervals along the circumferential direction; the annular pressure maintaining body is provided with second matching units which are in one-to-one correspondence with the second limiting units and are used for limiting the rotation of the annular pressure maintaining body and the plate-shaped pressure maintaining body in the circumferential direction.
8. The fuel tank valve of claim 7, wherein the second spacing unit is a bar-shaped spacing protrusion vertically disposed on a peripheral sidewall of the valve body, and the second mating unit is a bar-shaped spacing groove vertically opened on the annular pressure maintaining body.
9. The fuel tank valve of claim 5, wherein the annular pressure maintaining body is integrally formed with the plate-like pressure maintaining body.
10. A vehicle comprising a fuel tank valve as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323123176.XU CN220996121U (en) | 2023-11-20 | 2023-11-20 | Fuel tank valve and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323123176.XU CN220996121U (en) | 2023-11-20 | 2023-11-20 | Fuel tank valve and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220996121U true CN220996121U (en) | 2024-05-24 |
Family
ID=91111943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323123176.XU Active CN220996121U (en) | 2023-11-20 | 2023-11-20 | Fuel tank valve and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220996121U (en) |
-
2023
- 2023-11-20 CN CN202323123176.XU patent/CN220996121U/en active Active
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