CN109532470B - Built-in valve body assembly devices of metal fuel tank - Google Patents
Built-in valve body assembly devices of metal fuel tank Download PDFInfo
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- CN109532470B CN109532470B CN201811492524.1A CN201811492524A CN109532470B CN 109532470 B CN109532470 B CN 109532470B CN 201811492524 A CN201811492524 A CN 201811492524A CN 109532470 B CN109532470 B CN 109532470B
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- valve body
- guide groove
- fuel tank
- metal fuel
- built
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K2015/03256—Fuel tanks characterised by special valves, the mounting thereof
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valve Housings (AREA)
Abstract
The invention discloses an assembling mechanism for a built-in valve body of a metal fuel tank, which is used for assembling the valve body into the metal fuel tank. The assembling mechanism for the built-in valve body of the metal fuel tank comprises a mounting support, wherein a guide block is arranged on the mounting support, and the guide block is used for guidingThe valve body comprises a first side edge, a middle bulge and a second side edge, the top surface of the valve body is provided with a U-shaped guide groove and is respectively positioned on the two sides of the U-shaped guide groove
A first auxiliary guide groove and a second auxiliary guide groove in the shape of
The opening directions of the U-shaped guide grooves face to the U-shaped guide grooves; the first side edge, the middle bulge and the second side edge of the guide block are respectively clamped in the first auxiliary guide groove, the U-shaped guide groove and the second auxiliary guide groove. The invention can assemble the valve body into the metal fuel tank and can ensure the assembly position degree and stability of the valve body.
Description
Technical Field
The invention relates to the technical field of automobile machining processes, in particular to an assembling mechanism for a built-in valve body of a metal fuel tank.
Background
China has officially promulgated the requirements of the six-state evaporative emission regulations of automobiles and requires official implementation in 2020, 7, 1. At present, the evaporation emission value of a fuel tank system is required to be 800mg/day test by the fifth discharge requirement of China, the evaporation emission value of the whole fuel system is required to be less than or equal to 200mg/day test by the sixth discharge requirement of China, the evaporation emission value distributed to the fuel tank by a host factory is generally less than or equal to 70-80 mg/day test, and the sixth fuel tank of China is an urgent matter to be developed.
The metal fuel tank valve body is arranged, the existing national five-valve body is an arrangement mode that the valve body and the sealing ring are installed outside the fuel tank through a pressing plate and a bolt, the evaporation emission value of the fuel tank can be increased due to the external arrangement of the valve body, the national six-metal fuel tank needs to be internally provided with the valve body inside the fuel tank in order to reduce the evaporation emission value of the metal fuel tank, and the existing internal valve body of the national six-metal fuel tank is mainly directly welded inside a fuel tank shell through a support and then assembled on the fuel tank.
The mode of assembling the valve body comprises assembling the metal fuel tank before assembling and assembling the metal fuel tank after assembling, wherein the assembling before assembling is suitable for the stainless steel metal fuel tank, the valve body does not need to bear the baking high temperature of surface treatment, while the common low-carbon steel fuel tank needs to be subjected to high-temperature baking surface treatment after assembling, the valve body is assembled in the fuel tank after the surface treatment is finished, and the valve body is assembled after assembling is also finished.
In order to continue to survive in such a complex environment, enterprises must reduce the cost of the mechanical products through a design scheme, ensure the quality of the mechanical products and improve the competitiveness.
The profit of the metal fuel tank product is very thin, and with the continuous rising of the price of raw materials and the continuous falling of the selling price of automobiles, the profit of the product can be continuously maintained only by the time of the development cost and the manufacturing cost of the fuel tank. The product cost of the national six-metal fuel tank can be greatly reduced by adopting low-carbon steel, but in order to reduce the evaporation emission value and reduce the opening of the metal fuel tank, a valve body of the metal fuel tank needs to be assembled inside the metal fuel tank.
Therefore, how to assemble the valve body into the metal fuel tank and ensure the assembly position degree and stability of the valve body becomes a technical problem to be solved urgently by the technical personnel in the field.
Disclosure of Invention
The invention aims to provide an assembling mechanism for a built-in valve body of a metal fuel tank, which can assemble the valve body into the metal fuel tank and can ensure the assembly position and stability of the valve body.
In order to achieve the purpose, the invention provides an assembly mechanism for a built-in valve body of a metal fuel tank, which is used for assembling the valve body into the metal fuel tank
A first auxiliary guide groove,A second auxiliary guide groove, the first and second auxiliary guide grooves
The opening directions of the U-shaped guide grooves face to the U-shaped guide grooves; the first side edge, the middle bulge and the second side edge of the guide block are respectively clamped in the first auxiliary guide groove, the U-shaped guide groove and the second auxiliary guide groove.
Preferably, the entrance of the U-shaped guide groove is inclined upward.
Preferably, inlets of the first auxiliary guide groove and the second auxiliary guide groove are inclined upwards.
Preferably, chamfers are arranged at the front ends of the first side edge and the second side edge of the guide block.
Preferably, a guide groove cylinder is arranged in the U-shaped groove.
Preferably, a limiting groove is formed in a middle protrusion of the guide block, a limiting boss is arranged at the rear end of the U-shaped guide groove, and the limiting groove is matched with the limiting boss.
Preferably, the limiting groove and the limiting boss form a first interference fit.
Preferably, the first auxiliary guide groove and the second auxiliary guide groove are both provided with first reinforcing ribs.
Preferably, the first side edge and the second side edge of the guide block are both provided with second reinforcing ribs.
Preferably, a V-shaped groove which is opened along the horizontal direction is formed in the top surface of the valve body, a V-shaped bend which is opened along the horizontal direction is formed in the rear end of the mounting support, and the V-shaped bend and the V-shaped groove form second interference fit.
According to the internal valve body assembling mechanism of the metal fuel tank, the valve body of the metal fuel tank is adjusted from external to internal, the operation is simple, the opening of the metal fuel tank is reduced, the reliability of valve body assembly is guaranteed, the valve body can be effectively prevented from falling off in the process of wrong assembly or vibration, the assembly position of the valve body is guaranteed, and the stability of the metal fuel tank is improved.
Drawings
FIG. 1 is a schematic front view of a mounting bracket of a valve body assembly mechanism in a metal fuel tank according to an embodiment of the present invention;
FIG. 2 is a schematic top view of the mounting bracket of FIG. 1;
FIG. 3 is a schematic front view of a valve body assembly mechanism for a metal fuel tank according to an embodiment of the present invention;
FIG. 4 is a schematic top view of the valve body of FIG. 3;
FIG. 5 is a schematic view of the mounting bracket of FIG. 1 in an installed condition;
FIG. 6 is a schematic view of the cross-sectional structure taken along the line A-A in FIG. 5;
fig. 7 is a schematic view of the cross-sectional structure along the direction B-B in fig. 5.
Wherein, in fig. 1-7:
the valve comprises a valve body 1, a U-shaped guide groove 11, a first auxiliary guide groove 12, a second auxiliary guide groove 13, a guide groove cylinder 14, a limiting boss 15 and a first reinforcing rib 16;
the mounting bracket 2, a middle bulge 21, a first side 22, a second side 23, a chamfer 24, a limiting groove 25, a second reinforcing rib 26, a first interference fit 27 and a second interference fit 28.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
Referring to fig. 1 to 7, fig. 1 is a schematic front view of a mounting bracket of a valve body assembling mechanism in a metal fuel tank according to an embodiment of the present invention; FIG. 2 is a schematic top view of the mounting bracket of FIG. 1; FIG. 3 is a schematic front view of a valve body assembly mechanism for a metal fuel tank according to an embodiment of the present invention; FIG. 4 is a schematic top view of the valve body of FIG. 3; FIG. 5 is a schematic view of the mounting bracket of FIG. 1 in an installed condition; FIG. 6 is a schematic view of the cross-sectional structure taken along the line A-A in FIG. 5; fig. 7 is a schematic view of the cross-sectional structure along the direction B-B in fig. 5.
As shown in figures 1-5, the invention provides a valve body assembling mechanism in a metal fuel tank, which is used for assembling a valve body 1 into the metal fuel tank. The valve body assembling mechanism for the metal fuel tank comprises a mounting support 2, wherein a guide block is arranged on the mounting support 2, as shown in fig. 1 and 2, the guide block comprises a first side 22, a middle bulge 21 and a second side 23, the guide block is approximately in an inverted 'n' -shape, and the first side 22 and the second side 23 are approximately in an 'L' -shape.
As shown in fig. 3 and 4, a U-shaped guide groove 11, and a first auxiliary guide groove 12 and a second auxiliary guide groove 13 respectively located at two sides of the U-shaped guide groove 11 are arranged on the top surface of the valve body 1, the U-shaped guide groove 11 is arranged along the top surface of the valve body 1, the front end of the U-shaped guide groove 11 is an opening, and the rear end is a closed loop; the opening directions of the first auxiliary guide groove 12 and the second auxiliary guide groove 13 are both towards the U-shaped guide groove 11, and the first auxiliary guide groove 12 and the second auxiliary guide groove 13 are both substantially in the shape of
And (4) shaping.
As shown in fig. 1 and 5, the first side 22, the middle protrusion 21, and the second side 23 of the guide block are respectively engaged with the first auxiliary guide groove 12, the U-shaped guide groove 11, and the second auxiliary guide groove 13. The first auxiliary guide groove 12, the U-shaped guide groove 11, and the second auxiliary guide groove 13 can limit the mounting bracket 2 in the forward direction, the left direction, the right direction, and the up-down direction, so as to ensure the mounting strength of the mounting bracket 2 and the valve body 1.
According to the internal valve body assembling mechanism of the metal fuel tank, the valve body 1 of the metal fuel tank is adjusted from an external position to an internal position, the operation is simple, the opening of the metal fuel tank is reduced, the assembling reliability of the valve body 1 is ensured, the valve body 1 can be effectively prevented from falling off in the assembling error or vibration process, the assembling position of the valve body 1 is ensured, and the stability of the metal fuel tank is improved. The problem that the valve body 1 of the metal fuel tank for six countries needs to be assembled before box combination seam welding is further solved, the influence of surface treatment high-temperature baking on the valve body 1 is eliminated, the stainless steel material selection of the metal fuel tank is avoided, low-carbon steel can be applied to the fuel tank for six countries, and the cost of the metal fuel tank can be reduced by at least 100 yuan/set.
In a preferred embodiment, the entrance of the U-shaped guide groove 11 is inclined upward. I.e. the entrance to the front end of the shown U-shaped guide channel 11 is arranged in a bell-mouth like shape to facilitate easier alignment and insertion of the guide shoe into the U-shaped guide channel 11.
Preferably, inlets of the first auxiliary guide groove 12 and the second auxiliary guide groove 13 are inclined upward. That is, the entrances of the first auxiliary guide groove 12 and the second auxiliary guide groove 13 are each designed in a bell mouth-like shape so that the first side 22 and the second side 23 of the guide block are more easily aligned with and inserted into the first auxiliary guide groove 12 and the second auxiliary guide groove 13.
In a more preferred scheme, chamfers 24 are arranged at the front ends of the first side edge 22 and the second side edge 23 of the guide block, so that the first side edge 22 and the second side edge 23 of the guide block can be prevented from generating burrs when being inserted into the first auxiliary guide groove 12 and the second auxiliary guide groove 13, and the valve body 1 is prevented from sliding into the mounting bracket 2.
In a preferred scheme, as shown in fig. 4, at least one guide groove cylinder 14 is arranged in the U-shaped guide groove 11, so that the resistance of the valve body 1 when sliding into the mounting bracket 2 can be reduced.
The guide groove cylinder 14 and the guide block in the middle of the mounting bracket 2 can limit the left and right positions of the valve body 1 on the mounting bracket 2 at the same time.
In an optimal scheme, a limiting groove 25 is formed in a middle protrusion 21 of the guide block, a limiting boss 15 is arranged at the rear end of the U-shaped guide groove 11, and the limiting groove 25 is matched with the limiting boss 15. Shown spacing recess 25 can be the inverse trapezoid shape, spacing boss 15 can be the right trapezoid shape, can carry on spacingly to the direction around installing support 2 after spacing boss 15 and the cooperation of spacing recess 25.
In a preferred embodiment, as shown in fig. 7, the limiting groove 25 and the limiting boss 15 form a first interference fit 27. Spacing recess 25 with spacing boss 15's first interference fit 27 can produce ascending elasticity, can firmly fix valve body 1 and installing support 2 in upper and lower direction to can eliminate valve body 1 and installing support 2 and produce the risk of abnormal sound at the vibration in-process.
In a preferred embodiment, as shown in fig. 4, the first rib 16 is disposed at the upper end of each of the first auxiliary guide groove 12 and the second auxiliary guide groove 13, and the first rib 16 can improve the strength of the first auxiliary guide groove 12 and the second auxiliary guide groove 13.
In the preferred scheme, the upper ends of the first side 22 and the second side 23 of the guide block are respectively provided with a second reinforcing rib 26, the strength of the first side 22 and the second side 23 can be improved by the second reinforcing ribs 26, and the problem that the valve body 1 cannot be assembled due to deformation of the mounting bracket 2 caused by insufficient strength when the valve body is assembled with the mounting bracket 2 is solved.
In a preferred scheme, as shown in fig. 6, a V-shaped groove opened along the horizontal direction is formed in the top surface of the valve body 1, a V-shaped bend opened along the horizontal direction is formed at the rear end of the mounting bracket 2, and the V-shaped bend and the V-shaped groove form a second interference fit 28. The second interference fit 28 between the V-shaped bend and the V-shaped groove can generate elastic deformation to generate downward elastic force, and the first interference fit 27 between the limiting groove 25 in the guide block of the mounting bracket 2 and the limiting boss 15 in the U-shaped guide groove 11 of the valve body 1 can generate upward elastic force in a matching way, so that the valve body 1 and the mounting bracket 2 are fixed in the vertical position; and the risk that the valve body 1 and the mounting bracket 2 generate abnormal sound in the vibration process can be eliminated.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (10)
1. The built-in valve body assembling mechanism for the metal fuel tank is used for assembling a valve body into the metal fuel tank and is characterized by comprising a mounting support, wherein a guide block is arranged on the mounting support and comprises a first side edge and a middle protrusionA second side edge, the top surface of the valve body is provided with a U-shaped guide groove and two sides of the U-shaped guide groove are respectively positioned
A first auxiliary guide groove and a second auxiliary guide groove in the shape of
The opening directions of the U-shaped guide grooves face to the U-shaped guide grooves; the first side edge, the middle bulge and the second side edge of the guide block are respectively clamped in the first auxiliary guide groove, the U-shaped guide groove and the second auxiliary guide groove.
2. The valve assembly mechanism of claim 1, wherein the entrance of the U-shaped guide groove is inclined upward.
3. The assembling mechanism of a metal fuel tank built-in valve body according to claim 1 or 2, wherein inlets of the first auxiliary guide groove and the second auxiliary guide groove are each inclined upward.
4. The assembling mechanism for the valve body built in the metal fuel tank as claimed in claim 1 or 2, wherein the front ends of the first side and the second side of the guide block are provided with chamfers.
5. The assembling mechanism for the valve body built in the metal fuel tank as recited in claim 1 or 2, wherein a guide groove cylinder is provided in the U-shaped guide groove.
6. The assembling mechanism for the built-in valve body of the metal fuel tank as recited in claim 1 or 2, wherein a limiting groove is provided on the middle protrusion of the guide block, a limiting boss is provided at the rear end of the U-shaped guide groove, and the limiting groove is matched with the limiting boss.
7. The metal fuel tank built-in valve body assembling mechanism according to claim 6, wherein said limit groove forms a first interference fit with said limit boss.
8. The assembling mechanism for a metal fuel tank built-in valve body according to claim 1 or 2, wherein a first reinforcing rib is provided on each of the first auxiliary guide groove and the second auxiliary guide groove.
9. The assembling mechanism for a metal fuel tank built-in valve body according to claim 1 or 2, wherein a second reinforcing rib is provided on each of the first side and the second side of the guide block.
10. The assembling mechanism for the built-in valve body of the metal fuel tank as recited in claim 1 or 2, wherein a V-shaped groove which is opened along the horizontal direction is provided on the top surface of the valve body, a V-shaped bend which is opened along the horizontal direction is provided at the rear end of the mounting bracket, and the V-shaped bend and the V-shaped groove form a second interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811492524.1A CN109532470B (en) | 2018-12-06 | 2018-12-06 | Built-in valve body assembly devices of metal fuel tank |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811492524.1A CN109532470B (en) | 2018-12-06 | 2018-12-06 | Built-in valve body assembly devices of metal fuel tank |
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| Publication Number | Publication Date |
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| CN109532470A CN109532470A (en) | 2019-03-29 |
| CN109532470B true CN109532470B (en) | 2021-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811492524.1A Active CN109532470B (en) | 2018-12-06 | 2018-12-06 | Built-in valve body assembly devices of metal fuel tank |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113775577B (en) * | 2021-08-27 | 2024-01-30 | 中国煤炭科工集团太原研究院有限公司 | Built-in oil tank structure |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030094458A1 (en) * | 2001-11-19 | 2003-05-22 | Sharon Elizabeth Beyer | Fuel delivery module cover assembly |
| CN203888616U (en) * | 2014-04-28 | 2014-10-22 | 中国重汽集团济南动力有限公司 | Fixing bracket of CFV (Constant Flow Ventilation) valve for gas truck |
| KR102163968B1 (en) * | 2015-12-07 | 2020-10-12 | 현대자동차주식회사 | Valve device for odor prevention of fuel evaporative gas |
| CN205503430U (en) * | 2016-03-04 | 2016-08-24 | 曹德志 | Connecting piece of oil tank is followed to valve body of manual pump |
| CN207535688U (en) * | 2017-09-29 | 2018-06-26 | 戴胜汽车科技（苏州）有限公司 | A kind of metallic oil tank and its valve-embedded |
| CN207583539U (en) * | 2017-12-18 | 2018-07-06 | 斯丹德汽车系统（苏州）有限公司 | A kind of built-in vent valve mounting structure for metallic oil tank |
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