CN108612888B - Mechanical sealing valve assembly - Google Patents
Mechanical sealing valve assembly Download PDFInfo
- Publication number
- CN108612888B CN108612888B CN201810687132.4A CN201810687132A CN108612888B CN 108612888 B CN108612888 B CN 108612888B CN 201810687132 A CN201810687132 A CN 201810687132A CN 108612888 B CN108612888 B CN 108612888B
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- Prior art keywords
- seal valve
- sealing valve
- mechanical seal
- curved surface
- sealing
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
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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
- B60K15/01—Arrangement of fuel conduits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
- F02M37/0023—Valves in the fuel supply and return system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Transportation (AREA)
- Safety Valves (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The invention relates to a mechanical seal valve assembly, which comprises a mechanical seal valve, an oil filling pipe and a tooth ring, wherein the mechanical seal valve sleeve is arranged at one end of the oil filling pipe, the tooth ring is arranged at the other end of the oil filling pipe, and the outer edge of the tooth ring is in clamping connection with the oil filling pipe. The invention has the beneficial effects that: the mechanical seal valve is better limited in the oil filling pipe, circumferential relative movement cannot occur, meanwhile, the mechanical seal valve is arranged in the mechanical guide groove and is conveniently inserted into the shell in a fixed direction, and the inner circumferential surface of the buckling part is provided with the limiting convex rib matched with the limiting groove, so that circumferential relative movement between the tooth ring and the oil filling pipe is prevented.
Description
Technical Field
The invention relates to the technical field of oil filling pipes, in particular to a mechanical seal valve assembly.
Background
The release of the national sixth regulation has more severe requirements on the evaporative emission of the fuel system, in order to reduce the emission of hydrocarbon (C, H) in the refueling process, the oil filling port of the oil tank is generally sealed by adopting a liquid seal type or a mechanical type in order to ensure the passing of an ORVR test, and the liquid seal type has no abrasion of a sealing element, no durability problem and relatively low cost, so that the fuel tank has a very high occupancy rate in the market. However, for some commercial vehicles and light trucks, the oil filling pipe is relatively short, and liquid sealing cannot be realized, so that only mechanical sealing can be adopted, but the installation and positioning of the mechanical sealing valve in the oil filling pipe are difficult, and therefore, the mechanical sealing valve assembly is generated.
The mechanical sealing valve is used for preventing the volatilization of oil and gas in the oiling process and is arranged in the oiling pipe. The oil filling pipe is welded at a high temperature after the oil tank, but the mechanical sealing valve has a large influence on the performance of the mechanical sealing valve after being baked at a high temperature, and the problem of replacement of the mechanical sealing valve after sale is considered, and the tooth ring of the traditional oil filling pipe assembly is replaced, so that an oil filling cover can be fixed, and an oil gun can be hung on a gun, and the problem is solved effectively by researching and developing a set of mechanical sealing valve assembly.
Disclosure of Invention
The present invention aims to solve the above-mentioned problems, and to provide a mechanical seal valve assembly.
The invention adopts the technical scheme that: a mechanical seal valve assembly comprises a mechanical seal valve, an oil filling pipe and a tooth ring.
The sealing valve comprises a sealing valve shell, a sealing ring and a sealing ring, wherein the sealing valve shell is provided with a circular upper opening and a circular lower opening, the upper opening and the circular lower opening are eccentrically arranged, the sealing valve shell is provided with a first curved surface and a second curved surface, the inner side surfaces of the first curved surface and the second curved surface jointly form a channel for being inserted into a nozzle of a fuel dispenser, a vent hole is formed in the first curved surface, the vent hole is provided with a pressure relief device, the inner side of the upper end of the second curved surface is provided with a mounting groove, the outer peripheral surface of the second curved surface is provided with a guide groove, the outer wall of the lower opening extends outwards along the radial direction to form an annular error-proofing part, the lower end of the mounting groove is provided with two bosses protruding towards the center of the sealing valve shell along the inner side surface of the second curved surface, the lower edge of the lower opening extends inwards along the radial direction to form an annular boss, and the sealing ring is arranged on the annular boss;
the lower end of the sealing valve lining is a lining base, the upper end of the sealing valve lining is a lining lip, a notch corresponding to the vent hole is formed at the lower end of the lining base, and the edge part of the upper end of the lining lip is clamped in the mounting groove;
the oil filling pipe is sequentially provided with an upper section, a middle section and a lower section from top to bottom, the upper section is used for accommodating a tooth ring, the upper end of the upper end is provided with a skirt edge, the middle section is used for accommodating the mechanical seal valve, and the inner wall of the middle section is provided with a lug matched with the guide groove;
the retainer comprises an insertion part and a buckling part, wherein the inner diameter of the insertion part is the same as that of the upper section, a rubber pad is arranged between the lower end of the insertion part and the upper opening of the sealing valve shell in an annular mode, a spiral convex line is arranged on the inner peripheral surface of the insertion part, the buckling part is arranged at the upper end of the insertion part, a space exists between the inner peripheral surface of the buckling part and the outer peripheral surface of the insertion part, at least one buckling tooth is arranged at the interval of the buckling part, and a limiting convex rib matched with the limiting groove is arranged between the upper end of the inner peripheral surface of the buckling part and the upper end of the insertion part.
The beneficial effects of the invention are as follows: the mechanical seal valve is better limited in the oil filling pipe, the relative motion between the axial direction and the circumferential direction can not occur, meanwhile, the mechanical guide groove is arranged to facilitate the insertion into the shell in a fixed direction, and the limiting convex rib matched with the limiting groove is arranged on the inner circumferential surface of the buckling part, so that the circumferential relative motion between the tooth ring and the oil filling pipe is prevented; after the oil tank assembly welded with the oil filling pipe is sprayed at high temperature, a mechanical sealing valve is installed, the function of the traditional tooth ring is replaced by the redesigned tooth ring (the oil filling cover and the oil filling gun hanging gun are fixed), and the mechanical sealing valve can be fixed with the oil filling pipe through a buckle structure.
Drawings
The drawings referred to in the description of the embodiments of the present invention are simply introduced to facilitate a clearer and complete description of the technical solutions of the embodiments of the present invention, and the following drawings are only for some embodiments of the present invention and are not intended to limit the present invention, and it is obvious that other drawings can be obtained according to these drawings without performing other inventive work.
FIG. 1 is an exploded view of a mechanical seal valve assembly of the present invention;
FIG. 2 is a perspective view of the mechanical seal valve of FIG. 1;
FIG. 3 is a schematic view of the sealing valve housing of FIG. 2;
FIG. 4 is a schematic view of the sealing valve housing of FIG. 3 from another perspective;
FIG. 5 is a schematic view of the seal valve liner of FIG. 2;
FIG. 6 is a schematic diagram of a pressure relief device;
FIG. 7 is a schematic view of the fuel filler tube of FIG. 1;
FIG. 8 is a schematic view of the dental ring of FIG. 1;
FIG. 9 is a rear view of the dental ring shown in FIG. 8;
FIG. 10 is a perspective view of a mechanical seal valve assembly.
Detailed Description
The principles and features of the present invention are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention.
As shown in fig. 1, the invention provides a mechanical seal valve assembly, which comprises a mechanical seal valve 1, an oil filling pipe 2 and a tooth ring 3, wherein the mechanical seal valve 1 is sleeved at one end of the oil filling pipe 2, the tooth ring 3 is arranged at the other end of the oil filling pipe 2, and the outer edge of the tooth ring 3 is in clamping connection with the oil filling pipe 2. As shown in fig. 1, the mechanical seal valve 1 is sleeved at a position close to the lower end of the oil filling pipe 2, and the tooth ring 3 is clamped at the upper end of the oil filling pipe 2.
Referring to fig. 2, the mechanical seal valve 1 includes a seal valve housing 11, a seal valve liner 12, a seal ring 13 and a pressure relief device 14 coaxially disposed, one end of the seal ring 13 is abutted against the inside of the lower end of the seal valve housing 11, the upper end of the seal valve liner 12 is screwed on the inner edge of the upper end of the seal valve housing 11, the lower end of the seal valve liner is abutted against the seal ring 13, the peripheral side of the seal valve liner 12 is in limit fit with the inner wall of the seal valve housing 11, the seal valve housing 11 is provided with a vent hole 113, and the pressure relief device 14 is penetrated in the vent hole 113.
Referring to fig. 2 to 3, the sealing valve housing 11 is formed with a circular upper opening 11A and a circular lower opening 11B, the upper opening 11A and the circular lower opening 11B are eccentrically arranged, so that the sealing valve housing 11 is provided with a first curved surface 111 and a second curved surface 112, the inner side surfaces of the first curved surface 111 and the second curved surface 112 jointly form a channel for inserting a nozzle of a fuel dispenser, the first curved surface 111 is provided with the vent hole 113, the inner side of the upper end of the second curved surface 112 is provided with a mounting groove 1120, the outer wall of the lower opening 11B extends outwards along the radial direction to form an annular error-proofing part 11C, and the lower end of the mounting groove 1120 is provided with two bosses 1121 protruding towards the center of the sealing valve housing 11 along the inner side surface of the second curved surface 112; the lower edge of the lower opening 11B extends radially inward to form an annular boss 11B1. Preferably, in fig. 4, the outer circumferential surface of the second curved surface 112 is provided with a guide groove 112 ', and the depth of the guide groove 112' gradually decreases from top to bottom.
Preferably, the two bosses 1121 are disposed at 90 ° with respect to the vent hole 113.
As shown in fig. 5, the lower end of the sealing valve liner 12 is a liner base 121, and the upper end is a liner lip 122, wherein the edge part of the upper end of the liner lip 122 is arranged in the mounting groove 1120 and is in limit abutment with the boss 1121, the lower end of the liner base 121 is provided with a notch 1210, and the notch 1210 is arranged corresponding to the vent 113; the liner lip 122 has a lip surface 1221 and two abutment surfaces 1222, the minimum value of the outer diameter of the outer peripheral surface of the lip surface 1221 is not smaller than the outer diameter of the liner base 121, the abutment surfaces 1222 are triangle-like longitudinal sections formed by extending from top to bottom and smoothly connecting to the liner base 121, and the interval between the two bosses 1121 is equal to the interval between the two abutment surfaces 1222.
With continued reference to fig. 5, in the sealing valve liner 12 screwed to the sealing valve casing 11, a screw hole is formed in an upper end surface of the boss 1121, upper edges of the two abutting surfaces 1222 extend outwards in a radial direction to form a connection portion 1222 ', a through hole is formed in the connection portion 1222', and the connection portion 1222 'is fixed by penetrating the through hole of the connection portion 1222' through a screw into the screw hole of the boss 1121.
The sealing valve liner 12 extends into the sealing valve housing 11, and the boss 1121 and the abutting surface 1222 can not interfere with each other or abut against each other, and since the connecting portion 1222' is limited in the mounting groove, and meanwhile, the minimum value of the outer diameter of the outer peripheral surface of the lip surface 1221 is larger than the outer diameter of the liner base 121, the sealing valve liner 12 and the sealing valve housing 11 cannot slide relatively in the circumferential direction, so that better stability is achieved.
Referring to fig. 4, the ventilation hole 113 includes a central hole 1131 and side holes 1132 spaced apart from the outer circumference of the central hole 1131.
Referring to fig. 6, the pressure relief device 14 includes a pressure lever 141 and a membrane 142, wherein the pressure lever 141 is penetrated through a central hole 1131, the membrane 142 is fixedly arranged on the pressure lever, and the membrane 142 can be switched in a state of blocking and opening a side hole 1132.
It should be noted that, the pressing rod 141 is disposed in the central hole 1131 by riveting, welding or bonding. When the air pressure in the fuel system is too high, the diaphragm 142 will invert and the air will bleed out to complete the pressure relief. It will also be appreciated that the membrane 142 may be controlled to actively invert to allow venting of gas to complete the venting.
In a preferred embodiment, the trailing edge of the upper end of the sealing valve liner 12 is curved in the same arc as the trailing edge of the sealing valve housing 11 to achieve a better fit and further limit the relative circumferential movement of the two.
Further, as shown in fig. 5, a plurality of ribs 1212 extending in the direction of the liner lip 122 are provided on the inner side surface of the liner base 121 at intervals. Preferably, four ribs 1212 are provided, the four ribs 1212 being used to guide the nozzle of the fuel dispenser.
As shown in fig. 3, the upper end surface of the boss 1121 is spaced from the upper opening 11A by a distance (i.e., the depth of the mounting groove 1120) equal to the thickness of the connecting portion 1211', so that the upper end surface of the sealing valve liner 12 is flush with the upper end surface of the sealing valve casing 11 when the sealing valve liner 12 is inserted into the sealing valve casing 11.
With continued reference to fig. 2, the lower end of the seal ring 13 abuts against the annular boss 11B1, and the upper end abuts against the liner base 121, that is, the seal ring 13 is clamped between the annular boss 11B1 and the liner base 121.
Preferably, the sealing valve housing 11 is provided with an annular groove at one end near the upper opening 11A thereof, and an O-ring is embedded in the annular groove to further enhance the sealing effect of the mechanical sealing valve.
Preferably, the outer side surface of the first curved surface 111 is further provided with two ribs 111 'extending along the axial direction, and the two ribs 111' are disposed at two sides of the vent hole 113. The addition of the ribs 111' further improves the strength of the mechanical seal valve 1.
The mechanical seal valve 1 is installed by aligning the lip surface 1221 of the liner lip 122 with the first peripheral surface 111 of the seal valve housing 11, pushing the seal valve liner 12 into the seal valve housing 11, and then inserting the connecting portion 1222' through the hole and penetrating the screw hole of the boss 1121 by a screw.
Referring to fig. 7, the oil filling pipe 2 is sequentially provided with an upper section 21, a middle section 22 and a lower section 23 from top to bottom, wherein the upper section 21 is used for partially accommodating the dental ring 3, the middle section 22 is used for accommodating the mechanical seal valve 1, the upper end of the upper section 21 is provided with an annular skirt 211, the middle section 22 is used for sleeving the mechanical seal valve 1, the inner wall of the middle section 22 is provided with a lug 221, and the lug 221 is mutually matched with the guide groove 1120 and used for guiding the mechanical seal valve 1 to align and limiting the relative circumferential movement of the mechanical seal valve 1 and limiting the mechanical seal valve 1 to continuously slide downwards.
The outer diameter of the error-proofing portion 11C is slightly smaller than the inner diameter of the middle section 22. So that the mechanical sealing valve can be inserted into the filler tube 2 only in a fixed direction.
Further, the distance of the lower section 23 of the filler tube 2 may be adjusted in length according to the actual situation, for example, when the liquid level is lower than the end of the lower section 23, then the lower section 23 may be redesigned to have a longer length so as to go deep below the liquid level.
Further, the skirt 211 is provided with a limit groove 2111, and preferably, two limit grooves 2111 are provided.
Further, the two limit grooves are symmetrical about the central axis of the filler tube 2.
As shown in fig. 8 to 9, the dental ring 3 includes an insertion portion 31 and a fastening portion 32, a rubber pad (not shown) is looped between the lower end of the insertion portion and the upper opening of the sealing valve housing, the inner diameter of the insertion portion 31 is the same as the inner diameter of the upper section 21, the inner circumferential surface of the insertion portion 31 is provided with a spiral convex ridge 311, the fastening portion 32 is disposed at the upper end of the insertion portion 31, the inner circumferential surface of the fastening portion 32 has a spacing with the outer circumferential surface of the insertion portion 31, the spacing is not less than the thickness of the filler pipe 2, the fastening portion 32 is provided with a plurality of fastening teeth 321 at intervals, the fastening teeth 321 can be fastened and connected with the upper edge of the upper end 21, and a limit convex rib 322 matched with the limit groove is disposed between the upper end of the inner circumferential surface of the fastening portion 32 and the upper end of the insertion portion 31.
Preferably, two limit grooves 2111 with different widths are provided, and two limit ribs 322 with different widths are correspondingly provided. The installation direction of the dental ring is intuitively limited, and the limit groove and the limit convex rib are matched to prevent the circumferential relative movement between the dental ring and the oil filling pipe.
Further, the length of the insertion portion 31 is defined as follows: when the engagement portion 32 engages the upper end 21, the lower end of the insertion portion 31 abuts against the upper end of the sealing valve housing 11.
Referring to fig. 10, in the assembled view of the mechanical seal valve assembly, the locking teeth 321 of the locking portion 32 of the retainer 3 are locked to the upper edge of the upper section 21 of the filler pipe 2, the lower end of the insertion portion 31 abuts against the upper end of the seal valve housing 11, the lower end of the seal valve housing 11 abuts against the upper end of the seal ring 13, the protrusion 221 of the middle section 22 mates with the uppermost end of the guide groove 112' of the seal valve housing 11, the seal valve liner 12 is positioned in the seal valve housing 11, the boss 1121 abuts against the abutment surface 1222, and the vent hole 113 faces the notch 1210.
Thus, the present invention has the advantages that: the mechanical seal valve is better limited in the oil filling pipe, and does not generate relative axial and radial movements, meanwhile, the mechanical seal valve is arranged in the mechanical guide groove and is conveniently inserted into the shell in a fixed direction, and the limiting convex rib matched with the limiting groove is arranged on the inner peripheral surface of the buckling part, so that the relative circumferential movements between the tooth ring and the oil filling pipe are prevented; after the oil tank assembly welded with the oil filling pipe is sprayed at high temperature, a mechanical sealing valve is installed, the function of the traditional tooth ring is replaced by the redesigned tooth ring (the oil filling cover and the oil filling gun hanging gun are fixed), and the mechanical sealing valve can be fixed with the oil filling pipe through a buckle structure.
The foregoing is only illustrative of the present invention and is not to be construed as limiting thereof, but rather as various modifications, equivalent arrangements, improvements, etc., within the spirit and principles of the present invention.
Claims (6)
1. The utility model provides a mechanical seal valve assembly, includes mechanical seal valve, filler tube and tooth circle, its characterized in that:
the mechanical sealing valve comprises a pressure relief device, a sealing valve shell, a sealing valve lining and a sealing ring which are coaxially arranged, wherein,
the sealing valve comprises a sealing valve shell, a sealing ring and a sealing ring, wherein the sealing valve shell is provided with a circular upper opening and a circular lower opening, the upper opening and the circular lower opening are eccentrically arranged to enable the sealing valve shell to be provided with a first curved surface and a second curved surface, the inner side surfaces of the first curved surface and the second curved surface jointly form a channel for being inserted into a nozzle of a fuel gun, a vent hole is formed in the first curved surface, the vent hole is provided with a pressure relief device, the inner side of the upper end of the second curved surface is provided with a mounting groove, the outer peripheral surface of the second curved surface is provided with a guide groove, the outer wall of the lower opening extends outwards along the radial direction to form an annular error prevention part, the lower end of the mounting groove is provided with two bosses protruding towards the center of the sealing valve shell along the inner side surface of the second curved surface, the lower edge of the lower opening extends inwards along the radial direction to form an annular boss, and the sealing ring is arranged on the annular boss;
the lower end of the sealing valve lining is a lining base, the upper end of the sealing valve lining is a lining lip, a notch corresponding to the vent hole is formed at the lower end of the lining base, and the edge part of the upper end of the lining lip is detachably clamped in the mounting groove;
the oil filling pipe is sequentially provided with an upper section, a middle section and a lower section from top to bottom, the upper section is used for accommodating a tooth ring, the upper end of the upper section is provided with a skirt edge, the skirt edge is provided with a limit groove, the middle section is used for accommodating the mechanical seal valve, and the inner wall of the middle section is provided with a lug matched with the guide groove;
the tooth ring comprises an insertion part and a buckling part, wherein the inner diameter of the insertion part is the same as that of the upper section, a rubber pad is arranged between the lower end of the insertion part and the upper opening of the sealing valve shell in a surrounding mode, a spiral convex line is arranged on the inner circumferential surface of the insertion part, the buckling part is arranged at the upper end of the insertion part, a space exists between the inner circumferential surface of the buckling part and the outer circumferential surface of the insertion part, at least one buckling tooth is arranged at the interval of the buckling part, and a limiting convex rib matched with the limiting groove is arranged between the upper end of the inner circumferential surface of the buckling part and the upper end of the insertion part;
the lining lip has a lip surface and two abutting surfaces;
the lower end of the mounting groove is provided with a screw hole along the upper end face of a boss arranged on the inner side face of the second curved surface, the upper end edges of the two abutting surfaces respectively extend outwards along the radial direction to form a connecting part, the connecting part is clamped in the mounting groove, and the connecting part is in threaded connection with the boss;
the abutting surface is a triangle-like longitudinal section which is formed by extending from top to bottom and being smoothly connected to the lining base, and the distance between the bosses arranged at the lower ends of the two mounting grooves along the inner side surface of the second curved surface is equal to the distance between the two abutting surfaces.
2. The mechanical seal valve assembly of claim 1 wherein said vent includes a central bore and side bores spaced about the periphery of the central bore.
3. The mechanical seal valve assembly according to claim 2, wherein the pressure relief device comprises a pressure lever and a diaphragm, the pressure lever is inserted through the central hole, the diaphragm is fixedly arranged on the pressure lever, and the diaphragm can be switched in a state of blocking and opening the side hole.
4. The mechanical seal valve assembly of claim 1 wherein the trailing edge of the upper end of the seal valve liner is curved in the same arc as the trailing edge of the seal valve housing.
5. The mechanical seal valve assembly of claim 1 wherein there are two of said limiting grooves, and wherein both of said limiting grooves are symmetrical about a central axis of said filler tube.
6. The mechanical seal valve assembly of claim 5 wherein said retainer groove has a different width and said ring has two different width retainer ribs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810687132.4A CN108612888B (en) | 2018-06-28 | 2018-06-28 | Mechanical sealing valve assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810687132.4A CN108612888B (en) | 2018-06-28 | 2018-06-28 | Mechanical sealing valve assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108612888A CN108612888A (en) | 2018-10-02 |
| CN108612888B true CN108612888B (en) | 2023-08-01 |
Family
ID=63665821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810687132.4A Active CN108612888B (en) | 2018-06-28 | 2018-06-28 | Mechanical sealing valve assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108612888B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000079823A (en) * | 1998-07-02 | 2000-03-21 | Toyota Motor Corp | Fuel tank |
| WO2005038325A1 (en) * | 2003-10-16 | 2005-04-28 | Tank Tech Co., Ltd. | Valve for safety valve of tank for storing and carrying oil or chemical substance, and apparatus for preventing valve seat from being freezed and/or ruptured |
| CN104421466A (en) * | 2013-08-26 | 2015-03-18 | 首安工业消防有限公司 | Constant-pressure opening device |
| CN104924894A (en) * | 2015-07-17 | 2015-09-23 | 宁波舜江汽车部件制造有限公司 | Fuel oil filling pipe assembly |
| CN206093075U (en) * | 2016-10-10 | 2017-04-12 | 安徽江淮汽车集团股份有限公司 | Oil filler hole check valve assembly |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7287542B2 (en) * | 2005-04-08 | 2007-10-30 | Eaton Corporation | Shutoff valve for mechanically sealed ORVR system |
-
2018
- 2018-06-28 CN CN201810687132.4A patent/CN108612888B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000079823A (en) * | 1998-07-02 | 2000-03-21 | Toyota Motor Corp | Fuel tank |
| WO2005038325A1 (en) * | 2003-10-16 | 2005-04-28 | Tank Tech Co., Ltd. | Valve for safety valve of tank for storing and carrying oil or chemical substance, and apparatus for preventing valve seat from being freezed and/or ruptured |
| CN1878977A (en) * | 2003-10-16 | 2006-12-13 | 容器科技有限公司 | Valve for safety valve of tank for storing and carrying oil or chemical substance, and device for preventing valve seat from being freezed and/or ruptured |
| CN104421466A (en) * | 2013-08-26 | 2015-03-18 | 首安工业消防有限公司 | Constant-pressure opening device |
| CN104924894A (en) * | 2015-07-17 | 2015-09-23 | 宁波舜江汽车部件制造有限公司 | Fuel oil filling pipe assembly |
| CN206093075U (en) * | 2016-10-10 | 2017-04-12 | 安徽江淮汽车集团股份有限公司 | Oil filler hole check valve assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108612888A (en) | 2018-10-02 |
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