CN207073342U - Fuel tank lock construction - Google Patents

Abstract

The utility model is on a kind of fuel tank lock construction, the tank cap lock system is applied to the fuel filler neck of vehicle, the tank cap lock includes a hollow pedestal and one can be in the oil cap that open position or closed position are carried out on the pedestal, the oil cap is provided with lock body, the pedestal is provided with fixed seat, and the fixed seat is provided with the actuation mechanism for pinning the lock body；The oil cap includes a body, an enclosing cover combined with the body, one in the forcing piece moved on the body, and the block piece for limiting the forcing piece, ventilating mechanism is installed on the body, and it is provided with a spheroid below the ventilating mechanism, the spheroid is limited by block piece, buffer gear is provided between the forcing piece and the block piece, and the buffer gear system is located at the outside of the spheroid；Therefore the strike note of the forcing piece and the block piece can be reduced, and reduces caused aspirant when the tank cap lock is opened.

Description

Fuel tank lock construction

Technical field

The utility model is about a kind of fuel tank lock construction, especially a kind of shock for reducing the forcing piece and the block piece Sound, and reduce the fuel tank lock construction of caused aspirant when the tank cap lock is opened.

Background technology

The vehicle in combustion engine powered source can set a fuel tank for fuel storage, and the fuel tank is provided with fuel filler neck and fired with convenient The addition of oil, the fuel filler neck are provided with oil cap, avoid the water in the external world or foreign matter from entering in the fuel tank by the oil cap, while can The oil gas for avoiding the liquid level of fuel oil in fuel tank from being volatilized, which is arbitrarily diverged in air, to be polluted.In the fuel tank when internal combustion engine operates A powerful negative pressure can be formed, and when internal combustion engine is inoperative, one oil gas can be produced because of the volatilization of fuel oil in the fuel tank The bulbs of pressure；Therefore the oil cap is provided with open to atmosphere passage, thereby come the swollen of prevent negative pressure in the fuel tank and oil gas Swelling pressure power；Polluted to avoid the oil gas of fuel oil volatilization from being arbitrarily emitted into air, be to there is dealer to create TWI451987 Patent Cases.

As shown in Figure 1, 2, the TWI451987 Patent Cases by double venting channels design, to make volatilization in fuel tank Oil gas is thrown into air by quantitative, thereby come reach reduce oil vapour pollution purpose；The TWI451987 Patent Cases are no doubt The problem polluted with effective oil gas reduction for solving volatilization, but the pad A1 that sealing gasket A lower section is set, pad A1 systems For metallic article, therefore when oil cap is opened, pad A1 can produce shock with sealing gasket A metal, and produce metal The noise of shock, when the expansive force of the oil gas to volatilize in addition not yet reaches discharge pressure, the oil gas have part accumulate it is close in this Between packing A and pad A1, therefore the moment opened when the oil cap can produce larger aspirant, and whether metal strike is made an uproar Sound and the aspirant noise of moment, the increase of vehicle noise amount is all caused, and have the necessity for adding and improving.

Therefore, a kind of fuel tank lock construction how is provided, to reduce the metal strike noise of oil cap and making an uproar for moment aspirant Sound, it has been vehicle dealer problem urgently to be resolved hurrily.

Utility model content

【The utility model problem to be solved】

The utility model main purpose is to provide a kind of fuel tank lock construction, is mainly to overcome to commonly use when tank cap lock is opened Strike note and the excessive missing of aspirant.

【The technological means solved the problems, such as】

Therefore, the first technical way of the present utility model, there is provided a kind of fuel tank lock construction, the tank cap lock system are applied to The fuel filler neck of vehicle, the tank cap lock include a hollow pedestal and one can be in carrying out open position or closed position on the pedestal Oil cap, the oil cap is provided with lock body, and the pedestal is provided with fixed seat, the fixed seat be provided with pin the lock body make motivation Structure；The oil cap includes a body, an enclosing cover combined with the body, one in the forcing piece moved on the body, and a limit The block piece of the forcing piece is made, ventilating mechanism is installed, and a spheroid, the spheroid are provided with below the ventilating mechanism on the body Limited by block piece, buffer gear is provided between the forcing piece and the block piece, and the buffer gear system is located at the outer of the spheroid Side.

Therefore, the second technical way of the present utility model, there is provided a kind of fuel tank lock construction, by the buffer gear system To be sheathed on the bradyseism material on the block piece, the buffer gear has a breakthrough part, and the spheroid is the stop in the breakthrough part Part is limited, and the bradyseism material is rubber.

Therefore, the 3rd technical way of the present utility model, there is provided a kind of fuel tank lock construction, the buffer gear system are certainly A plurality of projection pieces are convexly equipped with the block piece to the forcing piece direction to be formed.

Therefore, the 4th technical way of the present utility model, there is provided a kind of fuel tank lock construction, the forcing piece include one Rigid portion and a sealing in the rigid portion, the buffer gear system are the bradyseism material in the rigid portion, and this is slow Punch mechanism has a breakthrough part, and the spheroid is limited in the breakthrough part by the block piece, and the bradyseism material is rubber.

Therefore, the 5th technical way of the present utility model, there is provided a kind of fuel tank lock construction, the forcing piece include one Rigid portion and a sealing in the rigid portion, the buffer gear system are to the block piece direction projection from the rigid portion There are a plurality of projection pieces to be formed.

Therefore, the 6th technical way of the present utility model, there is provided a kind of fuel tank lock construction, the projection piece be salient point or Raised line.

Therefore, the 7th technical way of the present utility model, there is provided a kind of fuel tank lock construction, the actuation mechanism are at least wrapped A swing arm and the jacking block driven by the swing arm are included, when the jacking block clip is in the lock body, the tank cap lock system is locking-in state, should Oil cap is located at the closed position；When the jacking block is driven by the swing arm and when releasing the clip to the lock body, the tank cap lock system is solution Lock status, the oil cap are moved to the open position.

Therefore, the 8th technical way of the present utility model, there is provided a kind of fuel tank lock construction, the body are provided with accommodating sky Between and resettlement section, the accommodation space to install the ventilating mechanism, the resettlement section storage has elastic component, the bullet of the flexible member Spring force compresses the forcing piece, when the tank cap lock is locking-in state, the forcing piece press on deformation produced by the fuel filler neck away from From being height more than the buffer gear.

Therefore, the 9th technical way of the present utility model, there is provided a kind of fuel tank lock construction, the body include accommodating Space, for the accommodation space to install the ventilating mechanism, the ventilating mechanism, which comprises at least, has one first spring, one by first bullet The first valve body, a second spring, second valve body supported by the spring force of the second spring for the spring force support of spring, and The ventilating mechanism is limited in the accommodation space by one locking closure, and second valve body is provided with perforation, and the locking closure sets a passage, should One first path of connection below accommodation space, first path include a through hole, one connect the occluded segment of the through hole, one accommodating The passage of the spheroid, and the breach located at the passage；And the body is provided with open to atmosphere alternate path.

Therefore, the tenth technical way of the present utility model, there is provided a kind of fuel tank lock construction, the alternate path at least wrap Containing a first passage and a second channel, the second channel system is a downwardly open column-like paths；The external world can thereby be prevented Moisture enters inside the oil cap.

Therefore, the 11st technical way of the present utility model, there is provided a kind of fuel tank lock construction, the occluded segment are circular arc Shape.

Therefore, the 12nd technical way of the present utility model, there is provided a kind of fuel tank lock construction, the swing arm band of the swing arm The jacking block that the distance of dynamic center to the swing arm branch dot center of the swing arm is more than the jacking block drives center to the swing arm branch dot center Distance.

【The effect of utility model】

The effect of the utility model can be reached by the first technical way is：The forcing piece and the resistance can be reduced The strike note of block piece, and reduce caused aspirant when the tank cap lock is opened.

The effect of the utility model can be reached by the second technical way is：The forcing piece and the resistance can be reduced The strike note of block piece, and reduce caused aspirant when the tank cap lock is opened.

The effect of the utility model can be reached by the 3rd technical way is：Thereby except can reach reduction, this is compeled The strike note of tight part and the block piece, and can more reduce number of components outside caused aspirant during reduction tank cap lock unlatching and can have Effect reduces the cost of the tank cap lock.

The effect of the utility model can be reached by the 4th technical way is：The forcing piece and the resistance can be reduced The strike note of block piece, and reduce caused aspirant when the tank cap lock is opened.

The effect of the utility model can be reached by the 5th technical way is：Thereby except can reach reduction, this is compeled The strike note of tight part and the block piece, and can more reduce number of components outside caused aspirant during reduction tank cap lock unlatching and can have Effect reduces the cost of the tank cap lock.

The effect of the utility model can be reached by the 6th technical way is：Thereby except can reach reduction, this is compeled The strike note of tight part and the block piece, and can more reduce number of components outside caused aspirant during reduction tank cap lock unlatching and can have Effect reduces the cost of the tank cap lock.

The effect of the utility model can be reached by the 7th technical way is：The tank cap lock can thereby be facilitated Close the controlling with opening.

The effect of the utility model can be reached by the 8th technical way is：Thereby can ensure that the forcing piece with Air-tightness between the fuel filler neck.

The effect of the utility model can be reached by the 9th technical way is：It can thereby prevent negative in fuel tank Press and release excessive vaporizing oil-gas in fuel tank, to ensure that liquid level of fuel oil in fuel tank can smoothly supply the safety of internal combustion engine and fuel tank Property, while when vehicle is toppled over, the spheroid can clog the occluded segment and can prevent the quick ejection of fuel oil, so that lifting vehicle Security.

The effect of the utility model can be reached by the tenth technical way is：Can thereby it prevent outside moisture from entering Enter inside the oil cap.

The effect of the utility model can be reached by the 11st technical way is：The thereby obstruction of the circular arc Section is engaged the compactness that can lift the occluded segment with the spheroid, therefore when vehicle is toppled over, can more make the spheroid more certain Clog the occluded segment and the quick ejection of fuel oil can be prevented.

The effect of the utility model can be reached by the 12nd technical way is：This can thereby be lifted and make motivation The Labor-saving of structure Mechanical course action.

Brief description of the drawings

Fig. 1,2 are TWI451987 Patent Cases.

Fig. 3 is the oil cap exploded view of the utility model tank cap lock.

Fig. 4 is the upward view of the utility model tank cap lock.

Fig. 5 is the utility model tank cap lock sectional view.

Fig. 5 (1), 5 (2) are another embodiments of the utility model buffer gear.

Fig. 6 is the action schematic diagram that the utility model tank cap lock ambient atmos enter.

Fig. 7 is the action schematic diagram of the utility model tank cap lock exhaust of oil.

Fig. 8 is the another embodiment of the utility model buffer gear.

Fig. 9,10 be the utility model buffer gear another embodiment.

Embodiment

The effect of to be easier to understand structure of the present utility model and can reach, hereby coordinate brief description of the drawings as follows；

First, refer to Fig. 3, shown in 5, fuel tank lock construction of the present utility model, the system of tank cap lock 1 be applied to vehicle plus Oil nozzle B, more particularly, the system of tank cap lock 1 are covered on the fuel filler neck B of vehicle, can thereby be covered fuel filler neck B； The tank cap lock 1 includes a hollow pedestal 2 and one can be in the oil cap 3 that open position or closed position are carried out on the pedestal 2.

As shown in figure 4, the pedestal 2 has the leg 21 of ring-type, the pedestal 2 is set to form one by the leg 21 hollow Ring bodies, the pedestal 2 set a pin joint seat 22 in the side of the leg 21, and the leg 21 is set in the opposite side of the setting pin joint seat 22 There is a fixed seat 23, the fixed seat 23 is provided with actuation mechanism 24；The pin joint seat 22 is available for the oil cap 3 to be pivoted.

As shown in figure 4, the actuation mechanism 24, which comprises at least, a swing arm 241 and a jacking block driven by the swing arm 2 41 242, when the clip of jacking block 242 is on the oil cap 3, thereby come to make the oil cap 3 be locking-in state, and the oil cap 3 is located at the pass Closed position；When the jacking block 242 is driven by the swing arm 241 and when releasing the clip to the oil cap 3, the system of oil cap 3 is released state, The oil cap 3 is movable to the open position；Wherein, the swing arm of the swing arm 241 drives swing arms of a of center 241 to the swing arm 241 The jacking block that branch dot center 241b distance system is more than the jacking block 242 drives center 242a to the swing arm branch dot center of the swing arm 241 241b distance.

As shown in Fig. 3,4,5, the side of the oil cap 3 is provided with a rocking arm 3a, and rocking arm 3a one end is hubbed at the pedestal 2 On pin joint seat 22, thereby the oil cap 3 can be by making shuttle-type action being turned on and off with rocking arm 3a on the pedestal 2；Should In setting rocking arm 3a opposite side to be provided with a lock body 3b, lock body 3b can be blocked oil cap 3 by the jacking block 242 of the actuation mechanism 24 Tug, thereby when the clip of jacking block 242 is in lock body 3b, the system of tank cap lock 1 is locking-in state, and the oil cap 3 is located at the close stance Put；When the jacking block 242 is driven by the swing arm 241 and when releasing the clip to lock body 3b, the system of tank cap lock 1 is released state, The oil cap 3 is moved to the open position；The oil cap 3 includes enclosing cover 32, one that a body 31, one is combined with the body 31 in this The forcing piece 33 moved on body 31, and a block piece 34 for limiting the forcing piece 33.

As shown in Fig. 3,4,5, the body 31 is towards the circular surrounding wall 31a of side (top in figure) projection one, the body 31 have an accommodation space 311 and a resettlement section 312, and the system of accommodation space 311 is located at the scope that surrounding wall 31a institutes circle enclose Interior, more particularly, the system of accommodation space 311 is located at the nearly centre in the range of surrounding wall 31a institutes circle enclose, the accommodating sky Between a ventilating mechanism 4 is installed in 311, the lower section of ventilating mechanism 4 is provided with a spheroid 5, more particularly, the system of ventilating mechanism 4 At the 31 nearly center of body, and closing piece 3b lies in surrounding wall 31a outside or the mode of inner side of the body 31 to set Put, the following description is illustrated with closing piece 3b located at the surrounding wall 31a of the body 31 outside；The 1a bags of surrounding wall 3 Enclose the ventilating mechanism 4 and form all-round collection headroom P with the enclosing cover 32；It is opposite that the system of resettlement section 3 12 is located at surrounding wall 31a Side, the center of resettlement section 312 are convexly equipped with a mounting seat 3121, the mounting seat 3121 be convexly equipped with a plurality of positioning convex point 3121a and Locking hole 3121b, the mounting seat 3121 are available for the forcing piece 33 to be installed with the block piece 34, and positioning convex point 3121a systems are available for Positioning is used when the block piece 34 is installed, and the 21b systems of locking hole 31 are available for locking during the block piece 34 installation to use；The resettlement section 312 In the periphery of the mounting seat 3 121, storage has elastic component 3122；The body 31 connects one in the lower section of the accommodation space 311 First path 313, first path 313 include a through hole 3131, one connect the through hole 3131 occluded segment 3132, one it is accommodating The passage 313 3 of the spheroid 5, and the breach 3134 located at the passage 3133, the system of breach 3134 are located at the mounting seat 3121 End face on, wherein, the system of spheroid 5 is steel ball；The body 31 is provided with one by the side of the accommodation space 311 and penetrates the body 31 And connecting an open to atmosphere alternate path 31 4, the alternate path 314, which comprises at least, a first passage 3141 and a second channel 31 42, the first passage 3141 is connected with the second channel 3142, the system of second channel 3 142 be one downwards (under in figure Just) the column-like paths of opening；Rocking arm 3a is extended by the 31 integrally formed mode of body.

As shown in Fig. 3,4,5, the system of enclosing cover 32 is covered on the surrounding wall 31a end of the body 31, the court of enclosing cover 32 The opposite direction of body 31 is provided with depressed part 321, and the depressed part 321 is connected with all-round collection headroom P, and the enclosing cover 32 with It is situated between the 1a of surrounding wall 3 of the body 31 and is provided with a gasket seal 322, thereby makes surrounding for the enclosing cover 32 and the body 31 The collection headroom P of perimeter closure shape, more particularly, the surrounding wall 31a of the enclosing cover 32 and the body 31 are formed between wall 31a Between can form the collection headroom P of all-round shape.

As shown in Fig. 3,5, the forcing piece 33 has sealing 33bs of the rigid portion 33a mono- on the rigid portion 33 a, should The rigid portion 33a of forcing piece 33 has the mounting hole 331 of a rectangle, and the forcing piece 33 is located at the receipts by the mounting hole 331 In the mounting seat 3121 in appearance portion 312, the forcing piece 33 is pushed up towards the side-line of body 31 by the flexible member 3122 of the resettlement section 312 Pressure；Sealing 33b systems can be resisted against on fuel filler neck B, to make fuel filler neck B form sealing shape.

As shown in Fig. 3,4,5, the system of block piece 34 has certain rigid as made by metal material, should Block piece 34 is provided with buffer gear 6, and the system of buffer gear 6 is the bradyseism material being sheathed on the block piece 34, and the bradyseism Material is rubber, and the buffer gear 6 has a breakthrough part 61；The block piece 34 is provided with the range of the breakthrough part 61 is defined A plurality of positioning holes 341 and lock apertured 342；The positioning hole 341 is combined with the positioning convex point 3121a of the mounting seat 3121, should It is corresponding with the 121b of locking hole 3 of the mounting seat 3121 to lock apertured 342；When the block piece 34 is by the positioning hole 341 and the lock After apertured 342 is locked on the installation portion 3121, the block piece 34 can be formed to the forcing piece 33 and limited, and more particularly, this is compeled The tight side of part 33 by the resettlement section 312 3122 top pressures of flexible member, opposite side then limited by the block piece 34 and Without departing from the body 31, and can be moved up and down in the side of resettlement section 312 of the body 31；When the tank cap lock 1 is locking-in state When, the system of forcing piece 33 presses on height of the distance system more than the buffer gear 6 of deformation caused by fuel filler neck B.

As shown in Fig. 3,4,5, the ventilating mechanism 4, which comprises at least, has one first spring 41, one by the bullet of first spring 41 The second valve body 44 that first valve body 42 of spring force support, a second spring 43, one are supported by the spring force of the second spring 43, with And one locking closure 45 ventilating mechanism 4 is limited in the accommodation space 311, second valve body 44 be provided with perforation 441, the locking closure 45 set a passage 451, and the passage 451 connects the first passage 3141 of the alternate path 3 14 of the body 31.

As shown in Fig. 3,5,6, the implementation of tank cap lock 1 of the present utility model, when internal-combustion engine vehicle operates, due to internal combustion engine Fuel oil in burnup fuel tank (not drawn in figure), therefore can cause to produce the suction of negative pressure in fuel tank, when the suction of negative pressure is more than During the spring force of first spring 41, first valve body 42 can be attracted by suction and produce to bottom offset, extraneous air Enter through alternate path 314, the path 313 of accommodation space 311 first in fuel tank, come the negative pressure in fuel tank of preventing, to ensure fuel tank Interior fuel oil can smoothly supply internal combustion engine.

As shown in Fig. 3,5,7, when the fuel oil volatilization in fuel tank, vaporizing oil-gas is produced because of the volatilization of fuel oil in fuel tank Expansive force, the expansive force of the oil gas can cause the internal pressure of fuel tank to be lifted, when the expansive force of oil gas is more than the second spring 43 Spring force when, second valve body 44 thereby can make second bullet by the expansive force pushing tow of the oil gas second spring 43 Spring 43 upwards receive by contracting, and thereby the oil gas bulbs of pressure of the inside of fuel tank can be logical through the first path 313, accommodation space 311, second Road 314 is emitted into air, at the same can by the spring force for presetting the second spring 43 make oil gas into quantitative discharge, by This meets environmental regulation and reduces pollution；The expansive force for working as oil gas volatilization in addition causes the internal pressure of fuel tank to be lifted, the oil The pressure of the expansive force of gas volatilization can make the forcing piece 33 be moved to the direction of enclosing cover 32, when actuation mechanism 24 is driven, and solve Except lock body 3b locking-in state when, the oil cap 3 is moved to open position, now can be by set on the block piece 34 Buffer gear 6, and the system of buffer gear 6 is located at the outside of the spheroid 5, therefore the forcing piece 33 and the block piece 34 can be reduced Strike note, and reduce caused aspirant when the tank cap lock 1 is opened.

As shown in Fig. 5 (1), 5 (2), another embodiment of buffer gear of the present utility model, buffer gear 6a systems are certainly should A plurality of projection pieces 343 are convexly equipped with block piece 34 to the direction of forcing piece 33 to be formed, the system of projection piece 343 can be salient point Or raised line；By buffer gear 6a systems to be formed from the projection piece 343 of the projection of block piece 34, the oil can be thereby reduced The number of components of case lock 1.

As shown in figure 8, buffer gear another embodiment of the present utility model, buffer gear 6b systems are sheathed on the forcing piece On the 33 rigid portion 33a inner peripheral of mounting hole 331, the buffer gear 6 b is a bradyseism material, and buffer gear 6b has consistent Logical portion 6b1, the spheroid 5 is limited in breakthrough part 6b1 by the block piece 34, and the bradyseism material is rubber.

As shown in Fig. 9,10, the another embodiment of buffer gear of the present utility model, buffer gear 6c systems are from the packing The rigid portion 33a of part 33 is convexly equipped with a plurality of projection pieces 332 towards the direction of block piece 34 and formed, and the system of projection piece 332 can be Salient point or raised line；Formed by buffer gear 6c systems by the projection piece 332 of the rigid portion 33a projections from the forcing piece 33, The number of components of the tank cap lock 1 can thereby be reduced.

First effect of the present utility model is that including a hollow pedestal 2 and one by the tank cap lock 1 can be in this The oil cap 3 of open position or closed position is carried out on pedestal 2, the oil cap 3 is provided with lock body 3b, and the pedestal 2 is provided with fixed seat 23, the fixed seat 23 is provided with the actuation mechanism 24 for pinning lock body 3b；The oil cap 3 includes a body 31, one and the body 31 enclosing covers 32, one combined are in the forcing piece 33 moved on the body 31, and a block piece 34 for limiting the forcing piece 33, Ventilating mechanism 4 is installed on the body 31, and a spheroid 5 is provided with the lower section of ventilating mechanism 4, the spheroid 5 is the institute of block piece 34 Limitation, is provided with buffer gear 6 between the forcing piece 33 and the block piece 34, and this slows down the outside that the structure system of machine 6 is located at the spheroid 5, Therefore the strike note of the forcing piece 33 and the block piece 34 can be reduced, and reduces caused aspirant when the tank cap lock 1 is opened.

Second effect of the present utility model is, is the bradyseism being sheathed on the block piece 34 by the system of buffer gear 6 Material, the buffer gear 6 have a breakthrough part 61, and the spheroid 5 is limited in the breakthrough part 61 by the block piece 34, and the bradyseism Material is rubber；Therefore the strike note of the forcing piece 33 and the block piece 34 can be reduced, and reduces the tank cap lock 1 and open when institute Caused aspirant.

3rd effect of the present utility model is, is to the packing from the block piece 34 by buffer gear 6a systems The direction of part 33 is convexly equipped with a plurality of projection pieces 343 and formed；Thereby remove can reach and reduce the forcing piece 33 and the block piece 34 Strike note, and can more reduce number of components outside caused aspirant during the reduction unlatching of tank cap lock 1 and can effectively reduce the tank cap lock 1 Cost.

4th effect of the present utility model is that it is firm located at this to include a of a rigid portion 33 and one by the forcing piece 33 Property portion 33a on sealing 33b, buffer gear 6b systems are bradyseism material on rigid portion 33a, buffer gear 6b With a breakthrough part 6b1, the spheroid 5 is limited in breakthrough part 6b1 by the block piece 34, and the bradyseism material is rubber；Cause This can reduce the strike note of the forcing piece 33 and the block piece 34, and reduce caused aspirant when the tank cap lock 1 is opened.

5th effect of the present utility model is that it is firm located at this to include a of a rigid portion 33 and one by the forcing piece 33 Property portion 33a on sealing 33b, buffer gear 6c systems be from rigid portion 33a to the direction of block piece 34 be convexly equipped with answer Several projection pieces 332 are formed；Thereby except the strike note that can reach the reduction forcing piece 33 and the block piece 34, and reduce fuel tank When lock 1 is opened outside caused aspirant, it can more reduce number of components and can effectively reduce the cost of the tank cap lock 1.

6th effect of the present utility model is, is salient point or raised line by the projection piece 343；Thereby remove and can reach reduction The strike note of the forcing piece 33 and the block piece 34, and can more reduce zero outside caused aspirant during the reduction unlatching of tank cap lock 1 Number of packages and the cost that can effectively reduce the tank cap lock 1.

7th effect of the present utility model is that being comprised at least by the actuation mechanism 24 has a swing arm 241 and put by this The jacking block 242 that arm 241 drives, when the clip of jacking block 242 is in lock body 3b, the system of tank cap lock 1 is locking-in state, the oil cap 3 Positioned at the closed position；When the jacking block 242 is driven by the swing arm 241 and when releasing the clip to lock body 3b, the tank cap lock 1 It is to be moved to the open position for released state, the oil cap 3；The closing of the tank cap lock 1 and the controlling opened can thereby be facilitated.

8th effect of the present utility model is that setting 31 by the body has accommodation space 311 and resettlement section 312, the appearance 311 to install the ventilating mechanism 4 between being empty, and the resettlement section 31 2 storage has elastic component 3122, the flexible member 3122 Spring force compresses the forcing piece 33, and when the tank cap lock 1 is locking-in state, the forcing piece 33 is pressed on produced by fuel filler neck B The distance of deformation is more than the height of the buffer gear 6；It thereby can ensure that the air-tightness between the forcing piece 33 and fuel filler neck B.

9th effect of the present utility model is, includes accommodation space 311 by the body 31, the accommodation space 311 To install the ventilating mechanism 4, the ventilating mechanism 4, which comprises at least, has one first spring 41, one by the spring of first spring 41 The second valve body 44 that first valve body 42 of power support, a second spring 43, one are supported by the spring force of the second spring 43, and The ventilating mechanism 4 is limited in the accommodation space 311 by one locking closure 45, and second valve body 44 is provided with perforation 441, the locking closure 451 One passage 451 is set, and one first path 313 of the lower section of accommodation space 311 connection, first path 313 includes a through hole 3131st, an occluded segment 3132, one for connecting the through hole 3131 houses the passage 3133 of the spheroid 5, and located at the passage 3131 Breach 3134；And the body 31 is provided with open to atmosphere alternate path 314；The negative pressure in fuel tank that can thereby prevent and fuel tank of releasing Interior excessive vaporizing oil-gas, to ensure that liquid level of fuel oil in fuel tank can smoothly supply the security of internal combustion engine and fuel tank, while work as vehicle When toppling over, the spheroid 5 can clog the occluded segment 3132 and can prevent the quick ejection of fuel oil.

Tenth effect of the present utility model is, comprised at least by the alternate path 314 have a first passage 3141 and One second channel 3142, the system of second channel 3142 are a downwardly open column-like paths；Can thereby it prevent outside moisture from entering Inside the oil cap 3.

11st effect of the present utility model is, is circular arc by the occluded segment 3132；By the resistance of the circular arc Plug section 3132 is engaged the compactness that can lift the occluded segment 313 2 with the spheroid 5, therefore when vehicle is toppled over, can more make The spheroid 5 is more certain to be clogged the occluded segment 3132 and can prevent the quick ejection of fuel oil.

12nd effect of the present utility model is, the 41a of center 2 is driven to the swing arm by the swing arm of the swing arm 241 The jacking block that 241 swing arm branch dot center 241b distance is more than the jacking block 242 drives center 242a to the swing arm branch dot center 241b distance；The Labor-saving of the Mechanical course of actuation mechanism 24 action can thereby be lifted.

Fuel tank lock construction of the present utility model can really reach the purpose of demand, should meet practicality by above-mentioned construction The important document of the novelty of new patent, creativeness and practicality, whence propose new patent application in accordance with the law.

Reference numerals list

1 tank cap lock

2 pedestals

The pin joint seat of 21 leg 22

23 fixed seats

24 actuation mechanisms

241 swing arms

241a swing arms drive center 241b swing arm branch dot center

242 jacking blocks

242a jacking blocks drive center

3 oil caps

3a rocking arm 3b lock bodies

31 bodies

311 accommodation spaces

312 resettlement sections

3121 mounting seat 3121a positioning convex points

3121a ' detent 3121b locking holes

3122 flexible members

313 first paths

The occluded segment of 3131 through hole 3132

The breach of 3133 passage 3134

314 alternate paths

The second channel of 3141 first passage 3142

31a surrounding walls

The depressed part of 32 enclosing cover 321

322 gasket seals

The mounting hole of 33 forcing piece 331

332 projection pieces

33a rigid portion 33b sealings

34 block pieces

341 positioning holes 342 lock apertured

343 projection pieces

4 ventilating mechanisms

41 first springs

42 first valve bodies

43 second springs

44 second valve bodies 441 are perforated

The passage of 45 locking closure 451

5 spheroids

6 buffer gears

61 breakthrough parts

6a buffer gears

6b buffer gear 6b1 breakthrough parts

6c buffer gears

A sealing gasket A1 pads

B fuel filler neck P collection headroom

Claims (12)

1. a kind of fuel tank lock construction, the tank cap lock is applied to the fuel filler neck of vehicle, the tank cap lock include a hollow pedestal and One can be in the oil cap that open position or closed position are carried out on the pedestal, and the oil cap is provided with lock body, and the pedestal, which is provided with, to be fixed Seat, the fixed seat are provided with the actuation mechanism for pinning the lock body；The oil cap include a body, one combined with the body it is outer Lid, one are in the forcing piece moved on the body, and a block piece for limiting the forcing piece, and ventilator is provided with the body Structure, and a spheroid is provided with below the ventilating mechanism, the spheroid is limited by block piece, it is characterised in that the forcing piece is with being somebody's turn to do Buffer gear is provided between block piece, and the buffer gear is located at the outside of the spheroid.

2. fuel tank lock construction as claimed in claim 1, it is characterised in that the buffer gear is to be sheathed on delaying on the block piece Material is shaken, the buffer gear has a breakthrough part, and the spheroid is limited in the breakthrough part by the block piece, and the bradyseism material is Rubber.

3. fuel tank lock construction as claimed in claim 1, it is characterised in that the buffer gear is to the packing from the block piece Part direction is convexly equipped with a plurality of projection pieces and formed.

4. fuel tank lock construction as claimed in claim 1, it is characterised in that the forcing piece includes a rigid portion and one located at this Sealing in rigid portion, the buffer gear are the bradyseism material in the rigid portion, and the buffer gear has a breakthrough part, The spheroid is limited in the breakthrough part by the block piece, and the bradyseism material is rubber.

5. fuel tank lock construction as claimed in claim 1, it is characterised in that the forcing piece includes a rigid portion and one located at this Sealing in rigid portion, the buffer gear is is convexly equipped with a plurality of projection piece institutes structure from the rigid portion to the block piece direction Into.

6. the fuel tank lock construction as described in claim 3 or 5, it is characterised in that the projection piece is salient point or raised line.

7. fuel tank lock construction as claimed in claim 1, it is characterised in that the actuation mechanism, which comprises at least, has a swing arm and by this The jacking block that swing arm drives, when the jacking block clip is in the lock body, the tank cap lock is locking-in state, and the oil cap is located at the close stance Put；When the jacking block is driven by the swing arm and when releasing the clip to the lock body, the tank cap lock is released state, and the oil cap is moved to The open position.

8. fuel tank lock construction as claimed in claim 1, it is characterised in that the body is provided with accommodation space and resettlement section, the appearance To install the ventilating mechanism between being empty, resettlement section storage has elastic component, and the spring force of the flexible member compresses the packing Part, when the tank cap lock is locking-in state, the distance of deformation is more than the buffer produced by the forcing piece presses on the fuel filler neck The height of structure.

9. fuel tank lock construction as claimed in claim 1, it is characterised in that the body includes accommodation space, the accommodation space To install the ventilating mechanism, the ventilating mechanism, which comprises at least, has one first spring, one to be supported by the spring force of first spring The first valve body, a second spring, second valve body supported by the spring force of the second spring, and a locking closure ventilates this Mechanism is limited in the accommodation space, and second valve body is provided with perforation, and the locking closure sets a passage, connected below the accommodation space Logical one first path, first path include a through hole, the occluded segment of the connection through hole, a passage for housing the spheroid, And the breach located at the passage；And the body is provided with open to atmosphere alternate path.

10. fuel tank lock construction as claimed in claim 9, it is characterised in that the alternate path, which comprises at least, a first passage And a second channel, the second channel is a downwardly open column-like paths.

11. fuel tank lock construction as claimed in claim 9, it is characterised in that the occluded segment is arc-shaped.

12. fuel tank lock construction as claimed in claim 7, it is characterised in that the swing arm of the swing arm drives center to the swing arm The distance of swing arm branch dot center is more than the distance of jacking block drive center to the swing arm branch dot center of the jacking block.