CN216002184U - Take filler cap of valve function - Google Patents
Take filler cap of valve function Download PDFInfo
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- CN216002184U CN216002184U CN202122328155.6U CN202122328155U CN216002184U CN 216002184 U CN216002184 U CN 216002184U CN 202122328155 U CN202122328155 U CN 202122328155U CN 216002184 U CN216002184 U CN 216002184U
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Abstract
The utility model discloses an oil filler cap with valve function, which comprises an upper cap, a valve component, a positioning chuck and a lower cap, wherein the upper cap is connected with the positioning chuck which is fixedly connected with the lower cap; the valve component is arranged in the lower cover and comprises a negative pressure spring, a first valve plate, a sealing sheet, a second valve plate and a positive pressure spring, wherein a circle of convex sealing ribs are arranged on the bottom surface of the lower cover, and the sealing sheet is attached to the sealing ribs of the lower cover; the first valve plate is arranged below the sealing sheet, the negative pressure spring is arranged below the first valve plate, and the first valve plate is attached to the lower surface of the sealing sheet; the second valve plate is located above the sealing plate, the upper surface of the second valve plate is attached to the upper surface of the sealing plate, and the positive pressure spring is located above the second valve plate. The utility model discloses set up the valve member in the filler cap, atmospheric pressure in can the automatic quick adjustment oil tank guarantees that vehicle fuel oil system and external environment pressure are balanced, ensures automobile fuel oil system's function and security.
Description
Technical Field
The utility model relates to the technical field of auto-parts, in particular to take filler cap of valve function.
Background
The fuel filler cap is a cap of a fuel filling port on a vehicle fuel tank, and the fuel filler cap of the fuel tank is generally in a screwed state and can be unscrewed only when being filled with fuel. In order to ensure the function and safety of the automobile fuel system, a two-way valve function is usually added at a fuel filler cap of a fuel tank. The bidirectional valve can realize the functions of a positive pressure valve and a negative pressure valve, and the positive pressure valve can ensure that pressure is released after the oil tank reaches a certain pressure, so that the risk caused by overhigh pressure in the oil tank is avoided; the negative pressure valve can ensure that the air is supplied after the oil tank reaches a certain negative pressure, so that the deformation of the oil tank and the influence on the function of an engine are avoided, and the pressure balance between a vehicle fuel system and the external environment is ensured. The structure of the two-way valve in the existing oil filler cover is complex, the sensitivity of pressure relief and air supplement is not high, and certain potential safety hazards still exist.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a take filler cap of valve function has increased the two-way valve function in the filler cap, but quick pressure release and tonifying qi guarantee that vehicle fuel system and external environment pressure are balanced.
Therefore, the technical scheme of the utility model is that: a filler cap with a valve function comprises an upper cap, a valve component, a positioning chuck and a lower cap, wherein the upper cap is connected with the positioning chuck, and the positioning chuck is arranged in the lower cap and is fixedly connected with the lower cap; the valve component is arranged in the lower cover and is positioned below the positioning chuck, the valve component comprises a negative pressure spring, a first valve plate, a sealing sheet, a second valve plate and a positive pressure spring, the sealing sheet is of an annular structure, a circle of convex sealing ribs are arranged on the bottom surface of the lower cover, and the sealing sheet is attached to the sealing ribs of the lower cover; the first valve plate is arranged below the sealing sheet, the negative pressure spring is arranged below the first valve plate, and the first valve plate is attached to the lower surface of the sealing sheet; the second valve plate is positioned above the sealing plate and is attached to the upper surface of the sealing plate; and a second positioning column protruding downwards is arranged in the middle of the second valve sheet, the positive pressure spring is arranged in the second positioning column, one end of the positive pressure spring is abutted against the second positioning column, and the other end of the positive pressure spring is abutted against the positioning chuck.
Under the action of the positive pressure spring, the sealing sheet is tightly pressed on the sealing rib of the lower cover by the second valve sheet; the first valve plate is tightly pressed on the sealing plate under the action of the negative pressure spring, the sealing plate is attached to the second valve plate, and the air pressure in the oil tank is in a balanced state at the moment.
Preferably, the bottom surface of the second positioning column is a closed end.
Preferably, the middle of the second valve plate is provided with a vent hole which is positioned on the bottom surface of the second positioning column, and the vent hole is communicated with the atmosphere and the upper end of the first valve plate.
The second valve plate can be closed at the middle part or can be provided with air holes. When the middle of the second valve plate is a closed end, the valve component only plays the role of a positive pressure valve. When the second valve plate is provided with a vent hole in the middle, the valve component can play the role of a positive pressure valve and also can play the role of a negative pressure valve.
When the internal pressure of the oil tank is too large, the force of the internal air pressure and the negative pressure spring is added to be larger than the pressing force of the positive pressure spring, the first valve plate, the sealing sheet, the second valve plate and the positive pressure spring are all pushed upwards by the internal air pressure, the internal air of the oil tank is discharged from a gap between the sealing sheet and the sealing rib of the lower cover, and after air leakage, the sealing sheet is tightly attached to the sealing rib of the lower cover again by the pressing force of the positive pressure spring.
When oil tank internal pressure was too little, the air vent in the middle of the second valve block can communicate the atmosphere, and atmosphere action is in first valve block top, and when the inside atmospheric pressure of oil tank and negative pressure spring's power add up and be less than atmospheric pressure, first valve block was opened by jack-up downwards, and is separated with the gasket, and the atmosphere flows into in the oil tank from the gap between first valve block and the gasket for the inside and outside atmospheric pressure of oil tank is balanced, avoids the oil tank to warp.
The positive pressure and negative pressure parameters of the valve component can be changed by adjusting the spring force of the positive pressure spring and the spring force of the negative pressure spring, so that different requirements of different vehicles are met.
Preferably, a circular notch is formed in the middle of the bottom surface of the lower cover, a first positioning column protruding downwards is arranged in the middle of the first valve plate, the negative pressure spring is sleeved on the outer side of the first positioning column, one end of the negative pressure spring abuts against the first valve plate, and the other end of the negative pressure spring abuts against the circular notch in the bottom surface of the lower cover. First reference column can be injectd negative pressure spring's position, and first valve block is sheet structure, then first reference column downward protrusion for first valve block top forms a recess, and the second reference column on the second valve block passes the gasket, can arrange this recess in, makes the position of first valve block, gasket and second valve block laminate more, can open the valve fast, realizes positive pressure valve, negative pressure valve's effect, loses heart, the tonifying qi is more sensitive.
Preferably, the sealing rib is of an annular structure and is positioned on the bottom surface of the lower cover, and the bottom surface of the lower cover is also provided with a plurality of first air leakage holes which are positioned on the inner side of the sealing rib; an annular edge which is turned outwards is arranged above the lower cover, and a plurality of second air leakage holes are formed in the annular edge. The first air release hole and the second air release hole can be communicated with the oil tank and the atmosphere, and the balance of the internal air pressure and the external air pressure is guaranteed.
Preferably, the outer wall of the positioning chuck is provided with a plurality of convex clamping blocks, the inner wall of the lower cover is provided with a plurality of clamping grooves, and the clamping blocks of the positioning chuck are inserted into the clamping grooves of the lower cover and are fixedly connected with each other. The positioning chuck and the lower cover are fixedly connected, the positioning chuck and the lower cover are matched through the clamping block and the clamping groove, the clamping block and the clamping groove can be replaced in the arrangement position, for example, the clamping groove can be arranged on the positioning chuck, the clamping block matched with the clamping groove is arranged on the lower cover, or the clamping block and the clamping groove can be arranged in a staggered mode on the positioning chuck and the lower cover, and the positioning chuck and the lower cover can be matched with each other in the corresponding positions.
Preferably, the outer side of the upper cover is provided with a rotating ring and a stop belt, the rotating ring is sleeved on the outer side of the upper cover, one end of the stop belt is fixed on the rotating ring, and the other end of the stop belt is connected with an installation chuck. This mounting clip may be secured to a component outside the fuel tank.
In order to optimize the functions of the oil filler cover, a locking mechanism can be arranged on the oil filler cover, so that the oil filler cover is prevented from being opened randomly by people, and potential safety hazards are caused. Therefore, the oil filler cover also comprises a locking mechanism, the locking mechanism is arranged in the positioning chuck, and the upper cover is connected with the positioning chuck through the locking mechanism; the locking mechanism comprises a lock cylinder shell, a lock cylinder, a lock bottom sliding block and a lock bottom spring, the upper end of the lock cylinder shell is fixedly connected with the upper cover, the lock cylinder is arranged in the lock cylinder shell, the bottom of the lock cylinder is provided with a stop block with an eccentric structure, the lock bottom sliding block is arranged at the bottom of the lock cylinder shell, one side of the lock bottom sliding block, which faces the lock cylinder, is provided with a groove, and the stop block at the bottom of the lock cylinder is arranged in the groove and is abutted against the end part of the groove; an opening is formed in the side face of the lock cylinder shell, one end of the lock bottom sliding block can extend out of the opening, a first ratchet is arranged at the extending end of the lock bottom sliding block, a second ratchet is arranged on the inner wall of the positioning chuck, and the first ratchet is matched with the second ratchet; the other end of the lock bottom sliding block is provided with a through hole, the lock bottom spring is arranged in the through hole, one end of the lock bottom spring is propped against the lock bottom sliding block, and the other end of the lock bottom spring is propped against the lock cylinder shell.
The dog below the lock core is eccentric structure, and when the lock core rotated, the dog will rotate round the center pin of lock core to make the dog change in the position of lock core casing, and lock end spring was located between inside and the lock core casing inner wall of lock end slider, make dog and lock end slider looks butt always. During the locking state, the stop dog supports lock end slider, makes it retract in the lock core casing completely, and the first ratchet on the lock end slider is separated with the second ratchet of location chuck inner wall, and consequently when rotating the upper cover, the upper cover can drive lock core casing and rotate, but lock core casing can't drive the lower cover through lock end slider and location chuck to realize filler cap's locking function.
When the lock needs to be unlocked, the lock core is rotated, the stop dog below the lock core is driven by the lock core to rotate together, and the stop dog is of an eccentric structure, so that the stop dog revolves around the central shaft of the lock core, the lock bottom sliding block is not abutted to the innermost side any more, and the lock bottom sliding block is pushed outwards by the lock bottom spring, so that the first ratchet of the lock bottom sliding block extends out of the opening of the lock core shell and is meshed with the second ratchet on the inner wall of the positioning chuck. When the upper cover is rotated, the upper cover drives the lock cylinder shell, so that the bottom locking sliding block in the lock cylinder shell can drive the positioning chuck to rotate, and the positioning chuck finally drives the lower cover to rotate and is screwed and fixed at the oil tank port.
Preferably, the locking mechanism further comprises a lock cylinder clamp spring, the lock cylinder clamp spring is of a U-shaped structure, two insertion holes are formed in the lock cylinder shell, and two ends of the lock cylinder clamp spring are inserted into the lock cylinder shell from the two insertion holes respectively and are arranged on two sides of the lock cylinder to clamp the lock cylinder. The lock core snap spring is used for clamping the lock core and preventing the lock core from falling off.
Preferably, the upper cover is internally provided with a positioning groove, positioning blocks are arranged on two sides above the lock cylinder shell and inserted into the positioning groove of the upper cover, and the upper cover is fixedly connected with the lock cylinder shell. The upper cover drives the lock cylinder shell to rotate through the matching of the positioning block and the positioning groove, so that the lower cover is driven to rotate.
The utility model has the advantages that: the valve component is arranged in the oil filler cover, so that air pressure in the oil tank can be automatically and quickly adjusted, pressure release can be performed after the oil tank reaches certain pressure, overhigh pressure in the oil tank is avoided, air supplement can be performed after the oil tank reaches certain negative pressure, the deformation of the oil tank and the influence on the function of an engine are avoided, the pressure balance of a vehicle fuel system and the external environment is ensured, and the function and the safety of the vehicle fuel system are ensured. Meanwhile, a locking mechanism is further arranged in the oil filler cover, and the oil filler cover is in two states of locking and unlocking by utilizing the matching of the eccentric stop block below the lock cylinder and the bottom locking sliding block, so that the oil filler cover is ensured not to be randomly opened by people in the locking state, the phenomena of stealing oil, pouring impurities into the oil and the like are prevented, and the vehicle using safety is ensured.
Drawings
The following detailed description is made with reference to the accompanying drawings and embodiments of the present invention
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is an exploded view of the components of the present invention;
FIG. 3 is a sectional view of the structure of the present invention;
FIG. 4 is a schematic structural diagram of a lock core and a lock bottom slide block;
FIG. 5 is a view of the lock bottom slide block separated from the locating clip;
FIG. 6 is a view showing the engagement between the bottom lock slider and the positioning clip;
FIG. 7 is a schematic view of the construction of the valve assembly;
FIG. 8 is an exploded view of a component of the valve assembly;
fig. 9 is a schematic structural view of the lower cover.
Labeled as: the locking device comprises an upper cover 1, a rotating handle 11, a positioning chuck 2, a second ratchet 21, a lower cover 3, a sealing rib 31, a first air release hole 32, a second air release hole 33, a circular notch 34, a positioning block 40, a lock cylinder shell 41, a lock cylinder 42, a lock bottom sliding block 43, a lock bottom spring 44, a stop block 45, a groove 46, a first ratchet 47, a through hole 48, a lock cylinder clamp spring 49, a negative pressure spring 51, a first valve plate 52, a sealing plate 53, a second valve plate 54, a positive pressure spring 55, a first positioning column 56, a second positioning column 57 and a vent hole 58.
Detailed Description
In the description of the present invention, it should be noted that, for the orientation words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and the positional relationship are indicated based on the orientation or the positional relationship shown in the drawings, and the description is only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the device or the element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present invention.
Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and "a plurality" or "a plurality" in the description of the invention means two or more unless a specific definition is explicitly provided.
Example 1
The filler cap of the embodiment comprises an upper cap 1, a valve component, a positioning chuck 2 and a lower cap 3, wherein the positioning chuck 2 is arranged in the lower cap 3 and is fixed with the lower cap 3, and an external thread structure in threaded connection with a fuel tank port is arranged outside the lower cap; the outer wall of the positioning chuck 2 is provided with a plurality of convex clamping blocks, the inner wall of the lower cover 3 is provided with a plurality of clamping grooves, and the clamping blocks of the positioning chuck are inserted into the clamping grooves of the lower cover and are fixedly connected with each other. The positioning chuck and the lower cover are fixedly connected, the positioning chuck and the lower cover are matched through the clamping block and the clamping groove, the clamping block and the clamping groove can be replaced in the arrangement position, for example, the clamping groove can be arranged on the positioning chuck, the clamping block matched with the clamping groove is arranged on the lower cover, or the clamping block is arranged on the positioning chuck and the lower cover, the clamping groove is also arranged, and the clamping block and the clamping groove which are matched with each other can be arranged on the corresponding positions of the positioning chuck and the lower cover.
The valve component is arranged in the lower cover 3 and positioned below the positioning chuck 2, the valve component is sequentially provided with a negative pressure spring 51, a first valve plate 52, a sealing sheet 53, a second valve plate 54 and a positive pressure spring 55 from bottom to top, the sealing sheet 53 is of an annular structure made of rubber, the bottom surface of the lower cover 3 is provided with a circle of convex sealing ribs 31, the sealing ribs 31 are of an annular structure and positioned on the bottom surface of the lower cover 3, and the bottom surface of the lower cover is also provided with a plurality of first air leakage holes 32 which are positioned on the inner sides of the sealing ribs; an annular edge which is turned outwards is arranged above the lower cover, and a plurality of second air leakage holes 33 are formed in the annular edge. The first air release hole and the second air release hole can be communicated with the oil tank and the atmosphere, and the balance of the internal air pressure and the external air pressure is guaranteed.
The sealing strip 53 is attached to the sealing rib 31 of the lower cover, a circular notch 34 is formed in the middle of the bottom surface of the lower cover 3, the first valve plate 52 is arranged below the sealing strip, a first positioning column 56 protruding downwards is arranged in the middle of the first valve plate 52, the negative pressure spring 51 is sleeved on the outer side of the first positioning column 56, one end of the negative pressure spring is abutted to the first valve plate 52, and the other end of the negative pressure spring is abutted to the circular notch 34 in the bottom surface of the lower cover. First positioning column can be injectd negative pressure spring's position, and first valve block is sheet structure, then first positioning column is the downward protrusion for first valve block top forms a recess. The second valve plate 54 is positioned above the sealing sheet 53, and the second valve plate is attached to the upper surface of the sealing sheet; and a second positioning column 57 protruding downwards is arranged in the middle of the second valve plate 54, penetrates through the sealing sheet and can be arranged in a groove in the middle of the first valve plate, so that the positions of the first valve plate, the sealing sheet and the second valve plate are more attached. The bottom surface of the second positioning column is provided with a vent hole 58, and the vent hole 58 can be communicated with the atmosphere. The positive pressure spring 55 is arranged in the second positioning column 57, one end of the positive pressure spring abuts against the second positioning column 57, the other end of the positive pressure spring abuts against the positioning chuck 2, and a spring mounting column is arranged below the positioning chuck, so that the positive pressure spring can be better mounted.
The positive pressure and negative pressure parameters of the valve component can be changed by adjusting the spring force of the positive pressure spring and the spring force of the negative pressure spring, so that different requirements of different vehicles are met.
Under the action of the positive pressure spring 55, the second valve plate 54 presses the sealing sheet 53 against the sealing rib 31 of the lower cover; the first valve plate 52 is pressed against the seal plate 53 by the negative pressure spring 51, and the seal plate 53 is bonded to the second valve plate 54, so that the air pressure in the tank is balanced. When the internal pressure of the oil tank is overlarge, the sum of the internal air pressure and the force of the negative pressure spring 51 is larger than the pressing force of the positive pressure spring 55, the first valve plate 52, the sealing piece 53, the second valve plate 54 and the positive pressure spring 55 are all pushed upwards by the internal air pressure, and the internal gas of the oil tank is discharged through the first air release hole 32 of the lower cover, the gap between the sealing piece 53 and the lower cover sealing rib 31, the gap between the lower cover and the positioning chuck and the second air release hole of the lower cover. After the air leakage, the pressing force of the positive pressure spring 55 makes the sealing sheet 53 tightly attached to the sealing rib 31 of the lower cover again. When the internal pressure of the oil tank is too small, the vent hole 58 in the middle of the second valve plate 54 can be communicated with the atmosphere, the atmosphere acts on the upper side of the first valve plate 52, when the internal pressure of the oil tank and the force of the negative pressure spring 51 are added up to be smaller than the atmospheric pressure, the first valve plate 52 is pushed downwards to be opened and separated from the sealing plate 53, the atmosphere flows into the oil tank through the second air release hole of the lower cover, the gap between the lower cover and the positioning chuck, the vent hole 58 in the middle of the second valve plate, the gap between the first valve plate 52 and the sealing plate 53, and the first air release hole 32 of the lower cover, so that the internal and external pressures of the oil tank are balanced, and the deformation of the oil tank is avoided.
Example 2
The structure of this embodiment is similar to that of embodiment 1, except that the bottom surface of the second positioning column is a closed end, and no vent hole is provided. When the internal pressure of the oil tank is overlarge, the sum of the internal air pressure and the force of the negative pressure spring 51 is larger than the pressing force of the positive pressure spring 55, the first valve plate 52, the sealing piece 53, the second valve plate 54 and the positive pressure spring 55 are all pushed upwards by the internal air pressure, and the internal gas of the oil tank is discharged through the first air release hole 32 of the lower cover, the gap between the sealing piece 53 and the lower cover sealing rib 31, the gap between the lower cover and the positioning chuck and the second air release hole of the lower cover. After the air leakage, the pressing force of the positive pressure spring 55 makes the sealing sheet 53 tightly attached to the sealing rib 31 of the lower cover again.
Therefore, the valve component only plays the role of a positive pressure valve, and because some fuel systems only need the positive pressure valve due to special function requirements, the second valve component assembly with the vent hole and without the vent hole can be randomly selected according to the use requirements, so that the application range of the filler cap is wider.
Example 3
In order to further function optimization to the filler cap, increase locking mechanism on embodiment 1's basis, guarantee that the filler cap can not be opened wantonly by the people, cause the potential safety hazard. Therefore, the oil filler cover further comprises a locking mechanism, the locking mechanism is arranged in the positioning chuck 2 and comprises a lock cylinder shell 41, a lock cylinder 42, a lock bottom sliding block 43 and a lock bottom spring 44, the upper end of the lock cylinder shell 41 is fixedly connected with the upper cover 1, positioning grooves are formed in the upper cover 1, positioning blocks 40 are arranged on two sides above the lock cylinder shell 41, and the positioning blocks are inserted into the positioning grooves of the upper cover. The upper cover 1 drives the lock cylinder shell 41 to rotate through the matching of the positioning block and the positioning groove, so that the lower cover is driven to rotate. The lock core 42 is arranged in the lock core shell 41, the bottom of the lock core 42 is provided with a stop block 45 with an eccentric structure, namely, when the lock core 42 rotates, the stop block revolves around the central shaft of the lock core, the lock bottom slide block 43 is arranged at the bottom of the lock core shell 41, one side of the lock bottom slide block 43, which faces the lock core 42, is provided with a groove 46, and the stop block 45 at the bottom of the lock core is arranged in the groove 46 and is abutted against the end part of the groove; an opening is arranged on the side surface of the lock cylinder shell 41, one end of the lock bottom sliding block 43 can extend out of the opening, a first ratchet 47 is arranged at the extending end, a second ratchet 21 is arranged on the inner wall of the positioning chuck 2, and the first ratchet 47 and the second ratchet 21 are matched with each other; the other end of the lock bottom slide block 43 is provided with a through hole 48, the lock bottom spring 44 is arranged in the through hole, one end of the lock bottom spring 44 is propped against the lock bottom slide block 43, and the other end is propped against the lock cylinder shell 41.
The locking mechanism further comprises a lock cylinder clamp spring 49, the lock cylinder clamp spring 49 is of a U-shaped structure, two insertion holes are formed in the lock cylinder shell, two ends of the lock cylinder clamp spring 49 are inserted into the lock cylinder shell 41 from the two insertion holes respectively and are arranged on two sides of the lock cylinder 42 to clamp the lock cylinder, and the lock cylinder is prevented from falling off. The top end of the lock cylinder 42 is provided with a lock hole, the upper cover 1 is provided with a rotating handle 11, the middle of the rotating handle is provided with a lock hole, and the lock hole is opposite to the lock hole. The locking mechanism also comprises a key matched with the lock cylinder, and the key is inserted into the lock hole at the top end of the lock cylinder from the lock hole of the rotating handle to drive the lock cylinder to rotate, so that the anti-theft effect is achieved.
The stopper 45 below the lock cylinder 42 is an eccentric structure, when the lock cylinder 42 rotates, the stopper 45 revolves around the central axis of the lock cylinder, so that the position of the stopper 45 in the lock cylinder housing 41 changes, and the lock bottom spring 44 is located between the inside of the lock bottom slide block 43 and the inner wall of the lock cylinder housing 41, so that the stopper 45 is always abutted to the lock bottom slide block 43. In the process of rotating the lock cylinder, two states of locking and unlocking exist: in the locking state, the stopper 45 abuts against the lock bottom sliding block 43 to be completely retracted into the lock cylinder housing 41, and the first ratchet 47 on the lock bottom sliding block is separated from the second ratchet 21 on the inner wall of the positioning chuck, so that when the upper cover 1 is rotated, the upper cover 1 can drive the lock cylinder housing 41 to rotate, but the lock cylinder housing 41 cannot drive the lower cover 3 through the lock bottom sliding block 43 and the positioning chuck 2, thereby realizing the locking function of the oil filler cap.
When unlocking is needed, the lock core 42 is rotated, the lock core 42 drives the lower stop block 45 to rotate together, and the stop block 45 is in an eccentric structure, so that the stop block revolves around the central shaft of the lock core, the lock bottom sliding block 43 is not abutted to the innermost side any more, the lock bottom spring 44 pushes the lock bottom sliding block 43 outwards, and the first ratchet 47 of the lock bottom sliding block extends out of the opening of the lock core shell and is meshed with the second ratchet 21 on the inner wall of the positioning chuck. When the upper cover 1 is rotated, the upper cover 1 drives the lock cylinder shell 41, so that the bottom locking slide block 43 in the lock cylinder shell 41 can drive the positioning chuck 2 to rotate, and the positioning chuck finally drives the lower cover 3 to rotate and is screwed and fixed at the oil tank opening. When the lower cover 3 is screwed down and the upper cover 1 is rotated continuously, the first ratchet 47 on the bottom locking slide block and the second ratchet 21 on the positioning chuck rotate relatively to generate click sound, so when the upper cover is rotated to generate continuous click sound, the oil filler cover is locked, and the locking prompt function is realized.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a take filler cap of valve function which characterized in that: the valve component comprises an upper cover, a valve component, a positioning chuck and a lower cover, wherein the upper cover is connected with the positioning chuck, and the positioning chuck is arranged in the lower cover and is fixedly connected with the lower cover; the valve component is arranged in the lower cover and is positioned below the positioning chuck, the valve component comprises a negative pressure spring, a first valve plate, a sealing sheet, a second valve plate and a positive pressure spring, the sealing sheet is of an annular structure, a circle of convex sealing ribs are arranged on the bottom surface of the lower cover, and the sealing sheet is attached to the sealing ribs of the lower cover; the first valve plate is arranged below the sealing sheet, the negative pressure spring is arranged below the first valve plate, and the first valve plate is attached to the lower surface of the sealing sheet; the second valve plate is positioned above the sealing plate and is attached to the upper surface of the sealing plate; and a second positioning column protruding downwards is arranged in the middle of the second valve sheet, the positive pressure spring is arranged in the second positioning column, one end of the positive pressure spring is abutted against the second positioning column, and the other end of the positive pressure spring is abutted against the positioning chuck.
2. A fuel lid with a valve function according to claim 1, wherein: the bottom surface of the second positioning column is a closed end.
3. A fuel lid with a valve function according to claim 1, wherein: and the middle of the second valve plate is provided with a vent hole which is positioned on the bottom surface of the second positioning column, and the vent hole is communicated with the atmosphere and the upper end of the first valve plate.
4. A fuel lid with a valve function according to claim 2 or 3, wherein: the middle of the bottom surface of the lower cover is provided with a circular notch, the middle of the first valve plate is provided with a first positioning column protruding downwards, the negative pressure spring is sleeved outside the first positioning column, one end of the negative pressure spring is abutted against the first valve plate, and the other end of the negative pressure spring is abutted against the circular notch of the bottom surface of the lower cover.
5. A fuel lid with a valve function according to claim 2 or 3, wherein: the sealing rib is of an annular structure and is positioned on the bottom surface of the lower cover, and a plurality of first air release holes are also formed in the bottom surface of the lower cover and are positioned on the inner side of the sealing rib; an annular edge which is turned outwards is arranged above the lower cover, and a plurality of second air leakage holes are formed in the annular edge.
6. A fuel lid with a valve function according to claim 1, wherein: the outer wall of the positioning chuck is provided with a plurality of convex clamping blocks, the inner wall of the lower cover is provided with a plurality of clamping grooves, and the clamping blocks of the positioning chuck are inserted into the clamping grooves of the lower cover and are fixedly connected with each other.
7. A fuel lid with a valve function according to claim 1, wherein: the outer side of the upper cover is provided with a rotating ring and a stop belt, the rotating ring is sleeved on the outer side of the upper cover, one end of the stop belt is fixed on the rotating ring, and the other end of the stop belt is connected with an installation chuck.
8. A fuel lid with a valve function according to claim 1, wherein: the locking mechanism is arranged in the positioning chuck, and the upper cover is connected with the positioning chuck through the locking mechanism; the locking mechanism comprises a lock cylinder shell, a lock cylinder, a lock bottom sliding block and a lock bottom spring, the upper end of the lock cylinder shell is fixedly connected with the upper cover, the lock cylinder is arranged in the lock cylinder shell, the bottom of the lock cylinder is provided with a stop block with an eccentric structure, the lock bottom sliding block is arranged at the bottom of the lock cylinder shell, one side of the lock bottom sliding block, which faces the lock cylinder, is provided with a groove, and the stop block at the bottom of the lock cylinder is arranged in the groove and is abutted against the end part of the groove; an opening is formed in the side face of the lock cylinder shell, one end of the lock bottom sliding block can extend out of the opening, a first ratchet is arranged at the extending end of the lock bottom sliding block, a second ratchet is arranged on the inner wall of the positioning chuck, and the first ratchet is matched with the second ratchet; the other end of the lock bottom sliding block is provided with a through hole, the lock bottom spring is arranged in the through hole, one end of the lock bottom spring is propped against the lock bottom sliding block, and the other end of the lock bottom spring is propped against the lock cylinder shell.
9. A valved fuel filler cap according to claim 8, wherein: the locking mechanism further comprises a lock cylinder clamp spring, the lock cylinder clamp spring is of a U-shaped structure, two insertion holes are formed in the lock cylinder shell, two ends of the lock cylinder clamp spring are inserted into the lock cylinder shell from the two insertion holes respectively, and the two ends of the lock cylinder clamp spring are arranged on two sides of the lock cylinder to clamp the lock cylinder.
10. A valved fuel filler cap according to claim 8, wherein: the lock cylinder is characterized in that a positioning groove is formed in the upper cover, positioning blocks are arranged on two sides above the lock cylinder shell and inserted into the positioning groove of the upper cover, and the upper cover is fixedly connected with the lock cylinder shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122328155.6U CN216002184U (en) | 2021-09-25 | 2021-09-25 | Take filler cap of valve function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122328155.6U CN216002184U (en) | 2021-09-25 | 2021-09-25 | Take filler cap of valve function |
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| CN216002184U true CN216002184U (en) | 2022-03-11 |
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| CN202122328155.6U Active CN216002184U (en) | 2021-09-25 | 2021-09-25 | Take filler cap of valve function |
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