TWI613102B - Buffered fuel tank cap device - Google Patents

Description

Buffered fuel tank cap device

The present invention relates to a fuel tank cap device, and more particularly to a fuel tank cap device having a cushioning effect.

Referring to FIG. 1 and FIG. 2, a conventional fuel tank cap device 1 includes a fixing base 11 disposed at an inlet of a fuel tank filler pipe (not shown), and a locking unit 12 disposed with the fixing base 11. And a fuel tank cap unit 13 rotatable relative to the fixed seat 11 in a closed position as shown in FIG. 1 and an open position as shown in FIG.

The fixing base 11 includes a surrounding wall 111 surrounding an oil inlet 100, two extending walls 112 (only one is shown in section) extending along the circumferential direction of the surrounding wall 111, and a surrounding wall. 111 and a hollowed out region 113 between the extended walls 112. The latch unit 12 includes a housing 121 extending outward from the surrounding wall 111 and surrounding an accommodating space 120, and a locking member 122 disposed in the accommodating space 120 and passing through the surrounding wall 111. And a resilient member 123 that abuts against the latching member 122. The fuel tank cap unit 13 includes an arm portion 131 pivotally connected to the extending wall 112 and passing through the hollow portion 113, a cover 132 connected to the arm portion 131, and a side connected to the cover body 132. A hook 133 provided with the locking member 122 and an elastic mechanism 134 disposed in the cover 132 are provided.

In the closed position, the cover 132 is covered by the oil inlet 100, and the elastic mechanism 134 is compressed to accumulate an elastic force, and the locking member 122 passes through the surrounding wall 111, the hook 133 is hooked on the locking member 122. In the open position, the locking member 122 is controlled by a main control switch (not shown) to move toward the accommodating space 120, and is retracted into the accommodating space 120 from the through hole 114. Since the hook 133 is not hooked on the locking member 122, the elastic force accumulated by the elastic mechanism 134 in the closed position causes the cover 132 to bounce off, so that the cover 132 is not covered by the oil. Mouth 100.

When the fuel tank cap unit 13 is bounced from the closed position by the locking member 122 to the open position, the arm portion 131 of the fuel tank cap unit 13 is surrounded by the elastic force that causes the cover body 132 to bounce. When the wall 111 is impacted, the arm portion 131 may be damaged by a long-term impact. Further, the bearing located at the pivotal portion of the arm portion 131 and the extending wall 112 may be damaged, which may affect the normal operation of the fuel tank cap device 1.

Referring to FIG. 2 and FIG. 3, in order to solve the problem that the arm portion 131 collides with the surrounding wall 111, FIG. 3 is a gear unit 14 fitted to the arm portion 131, so that the fuel tank cap unit 13 is from the closed position. When the locking member 122 is contracted and is released to the open position, the damping effect of the gear unit 14 can be used to slowly open the fuel tank cap unit 13 to the open position, thereby avoiding the arm portion 131 being The momentary spring force generated by the elastic mechanism 134 hits the surrounding wall 111.

However, in the manner of adding a gear unit 14, the design of the entire fuel tank cap device 1 must be changed to enlarge the space between the extension walls 113. In the meantime, a plurality of gears can be attached to the pivotal portion of the arm portion 131 and the extension wall 113, and the damping effect can be achieved to allow the fuel tank cap unit 13 to be slowly opened. For the manufacturer, the existing design must be greatly modified, and the process of mold opening and manufacturing must be re-executed, which not only takes a lot of time to re-develop and manufacture, but also costs a lot of money. In addition, when the respective gears are mounted separately, the assembly time is also lengthened due to the complicated mounting method.

Accordingly, it is an object of the present invention to provide a fuel tank cap device having a cushioning effect that does not require modification of an existing design but can directly add components to produce a cushioning effect.

Therefore, the fuel tank cap device of the present invention has a fixing unit disposed at an inlet of a fuel tank filler pipe, a fuel tank cap unit pivotally connected to the fixing unit, and a lock control disposed in cooperation with the fuel tank cap unit. a unit, and a buffer unit mounted on the fixed unit.

The fixing unit comprises a surrounding wall surrounding an oil inlet communicating with the fuel tank of the fuel tank, and two extending walls spaced along the circumference of the surrounding wall and extending outward respectively. The surrounding wall is provided with a hollowed area between the extending walls.

The fuel tank cap unit includes an arm pivoted between the extension walls and rotatable in the hollow region, and a cover body connecting the arm portion, the cover body can be driven by the arm portion and closed Rotate between the position and an open position.

The lock control unit is arranged to cooperate with the fuel tank cap unit, and is controlled The cover is rotated from the closed position to the open position.

The buffer unit is mounted on the surrounding wall to prevent the arm from colliding with the surrounding wall when the cover is rotated from the closed position to the open position.

The utility model has the advantages that the buffer unit mounted on the surrounding wall can be directly installed without modifying the existing design, and can block the arm when the cover body is rotated from the closed position to the open position. A cushioning effect is generated to prevent the arm from colliding with the surrounding wall.

1‧‧‧ fuel tank cap device

100‧‧‧Inlet

11‧‧‧ Fixed seat

111‧‧‧ Around the wall

112‧‧‧Extension wall

113‧‧‧镂空区

12‧‧‧Lock unit

120‧‧‧ accommodating space

121‧‧‧Shell

122‧‧‧Cards

123‧‧‧Flexible components

13‧‧‧ fuel tank cap unit

131‧‧‧arms

132‧‧‧ cover

133‧‧‧ hook

134‧‧‧Flexible mechanism

14‧‧‧ Gear unit

2‧‧‧Fuel cover device

21‧‧‧Fixed unit

210‧‧‧Inlet

211‧‧‧ Around the wall

212‧‧‧Extension wall

213‧‧‧The open space

214‧‧‧Installation Department

215‧‧‧ protruding parts

22‧‧‧Fuel cover unit

221‧‧‧arm

222‧‧‧ cover

223‧‧‧Flexible mechanism

224‧‧‧ card hook

23‧‧‧Lock control unit

230‧‧‧ accommodating space

231‧‧‧ Shell

232‧‧‧Cards

233‧‧‧Flexible components

24‧‧‧buffer unit

240‧‧‧through holes

241‧‧‧ lap joint

242‧‧‧Extension

243‧‧‧ buffer

244‧‧‧ Fixed Department

245‧‧‧ Department of Wear

246‧‧‧damper

BRIEF DESCRIPTION OF THE DRAWINGS Other features and advantages of the present invention will be apparent from the following description of the drawings. FIG. 1 is a cross-sectional view showing a conventional fuel tank cap device; FIG. 2 is a cross-sectional view, and FIG. Figure 3 is a cross-sectional view showing the case where the conventional fuel tank cap device is equipped with a gear unit; and Figures 4 and 5 are cross-sectional views showing a first embodiment of the fuel tank cap device of the present invention having a cushioning effect, respectively FIG. 6 is a perspective view showing a mounting position of a buffer unit of the first embodiment; FIG. 7 is a schematic view showing the buffer unit of the first embodiment; and FIG. Figure 11 is a schematic view showing a buffer unit of a second embodiment of the fuel tank cap device of the present invention having a cushioning effect.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to FIG. 4 and FIG. 5, a first embodiment of a fuel tank cap device 2 having a cushioning effect according to the present invention includes a fixing unit 21 disposed at an inlet of a fuel tank oil filler pipe (not shown). A fuel tank cap unit 22 pivotally connected to the fixing unit 21, a lock control unit 23 disposed in cooperation with the fuel tank cap unit 22, and a buffer unit 24 mounted on the fixing unit 21.

The fixing unit 21 includes a surrounding wall 211 surrounding an oil inlet 210 communicating with the fuel tank of the fuel tank, and two extending walls 212 spaced apart along the circumference of the surrounding wall 211 and extending outwardly respectively. As shown in FIG. 6, the surrounding wall 211 is provided with a hollowed out area 213 between the extended walls 212, and has a mounting portion located above the hollowed out area 213 between the extended lines of the extended extending walls 212. 214, and a protrusion 215 extending outward from the outer edge of the mounting portion 214 and having a height lower than the mounting portion 214 and flush with the lower end of the mounting portion 214. The buffer unit 24 is mounted on the mounting portion 214 and is disposed to match the protruding portion 215. It should be particularly noted that the mounting portion 214 may be integrally formed by the surrounding wall 211, or may be connected to the position shown in FIG. 6 by means of screw fastening, welding, or the like.

Referring to FIG. 4 and FIG. 5 , the fuel tank cap unit 22 includes an arm portion 221 pivoted between the extending walls 212 and rotatable in the hollow portion 213 , and a cover body 222 connecting the arm portion 221 . One of the cover bodies 222 The elastic mechanism 223 and a hook 224 connected to the cover 222 and provided with the locking member 232. The cover 222 can be driven by the arm portion 221 to be rotated between a closed position as shown in FIG. 4 and an open position as shown in FIG.

The lock control unit 23 is disposed in cooperation with the fuel tank cap unit 22, and is controlled by a locomotive central control (not shown) to control the cover body 222 to be rotated from the closed position to the open position. The lock control unit 23 includes a housing 231 extending outward from the surrounding wall 211 and surrounding an accommodating space 230, a locking member 232 located in the accommodating space 230 and passing through the surrounding wall 211, and A stop abuts against the elastic member 233 of the locking member 232. The elastic member 233 is a spring for providing an elastic restoring force when the locking member 232 is controlled by the locomotive of the locomotive or contracted by the force, so that the locking member 232 passes through the surrounding wall again. 211.

As shown in FIG. 4, in the closed position, the cover 222 is disposed on the oil inlet 210, and the hook 224 is hooked on the locking member 232 passing through the surrounding wall 211. At this time, the elastic mechanism 223 is compressed to accumulate an elastic restoring force. When the locking member 232 is controlled by the locomotive central control and is retracted into the accommodating space 230, the hook 224 cannot be hooked on the locking. The elastic restoring force accumulated by the elastic mechanism 223 pushes the cover 222 to the open position. As shown in FIG. 5, in the open position, the cover 222 is not covered by the oil inlet 210.

When the cover 222 is in the open position, the oil inlet 210 can be extended by a grease gun (not shown) to perform a refueling operation. Since the locking member 232 is controlled by the locomotive central control, only the instantaneous contraction causes the hook 224 to fail. When it is set, it is immediately compressed by the elastic restoring force accumulated by the elastic member 233 at the time of contraction, and is restored to the state of passing through the surrounding wall 211. When the refueling operation is completed, the user applies a force to the cover 222 of the fuel tank cap unit 22, and the cover 222 is placed on the oil inlet 210, and the hook 224 applies a force to the locking member 232. The locking member 232 is pressed against the elastic member 233 to be contracted and rebounded, so that the hook 224 is re-hooked to the locking member 232, and the cover 222 is rotated from the open position to the closed position.

Referring to FIG. 7 and FIG. 5 and FIG. 6 , the buffer unit 24 is mounted on the mounting portion 214 of the surrounding wall 211 and passes through the hollow area 213 for rotating the cover 222 from the closed position to the opening. In the position, the arm portion 221 is prevented from colliding with the surrounding wall 211. The buffer unit 24 includes a lap portion 241 extending along the outer edge of the mounting portion 214 and the protruding portion 215, and an extending portion 242 extending from the lower end of the lap portion 241 and passing through the hollow portion 213. And a buffer portion 243 which is bent and extended from the extending portion 242 and has elasticity due to the curved shape, and the length of the buffer portion 243 does not exceed the upper edge of the mounting portion 214. Since the overlapping portion 241 is in a bent shape and is engaged with the protruding portion 215 by the bending of the mounting portion 214 and the protruding portion 215, the buffer unit 24 is thus reliably supported and fixed to the protruding portion 215. A predetermined position around the wall 211. The buffer portion 243 is a rubber elastic member or a metal piece. When the cover body 222 is bounced from the closed position to the open position, the buffer portion 243 can block the arm portion 221 and avoid the arm portion 221. The lower edge of the mounting portion 214 is struck. It should be particularly noted that, in addition to the rubber elastic member or the metal sheet, the buffer portion 243 can be cushioned as long as the arm portion 221 is blocked. Not limited to the above components.

Referring to FIG. 8 and FIG. 5 and FIG. 6, FIG. 8 shows a second embodiment of the fuel tank cap device 2 of the present invention, which is different from the first embodiment in that the surrounding wall 211 does not have the same. Projection 215. Therefore, the buffer unit 24 in the second embodiment must be attached to the mounting portion 214 by other means. The first embodiment of the present invention, the buffer unit 24 includes a fixing portion 244 fixed to the outside of the mounting portion 214, and a bent portion 213 is bent from the lower end of the fixing portion 244. The buffer portion 243 is curved and has elasticity. The fixing portion 244 is attached to the mounting portion 214 by screwing. It should be particularly noted that the fixing portion 244 is directly fixed to the mounting portion 214. In addition to being screwed, other means such as adhesive or welding can be utilized, and the screw is not locked. limit. When the cover 222 is bounced from the closed position to the open position, since the buffer portion 243 is a rubber elastic member, the arm portion 221 can be blocked and a cushioning effect can be prevented, and the arm portion 221 is prevented from hitting the mounting portion. Below the 214.

Referring to FIG. 9 , a second embodiment of the second embodiment is different from the first embodiment shown in FIG. 8 in that the buffer unit 24 further includes a fixed outer side of the mounting portion 214 and surrounds the second embodiment. The insertion portion 245 of the hole 240 is inserted through the through hole 240, and one end of the fixing portion 244 is hooked to the through portion 245, thereby being fixed On the wearing portion 245. The buffer portion 243 can also block the arm portion 221 to prevent the arm portion 221 from striking the lower edge of the mounting portion 214. Wherein, the wearing portion 245 may be fixed by means of an adhesive or welding or the like. The attachment portion 214 is not limited to the above-described fixing method as long as the insertion portion 245 can be surely fixed to the attachment portion 214.

Referring to FIG. 10, a third embodiment of the second embodiment is different from the first embodiment shown in FIG. 8 in that the buffer unit 24 includes a fixing portion 244 fixed to the outside of the mounting portion 214. a buffer portion 243 that is bent and passes through the hollow portion 213, and a damping portion 246 that is connected between the fixing portion 244 and the buffer portion 243, when the cover 222 is bounced from the closed position to In the open position, the damper portion 246 can provide a cushioning effect when the arm portion 221 contacts the buffer portion 243, and the arm portion 221 is prevented from hitting the lower edge of the mounting portion 214. The damper portion 246 can be designed as a sleeve formed by the inner and outer sleeves being statically fitted to each other, and the damping oil is filled in the sleeve to thereby generate a damping effect. In addition to the embodiment of filling the damping oil, the damping portion 246 can also be designed as a torsion spring, or a gear set, or can be elastically restored by the torsion spring, or by the gear set. The damping effect is achieved to achieve the purpose of generating a cushioning effect.

Referring to FIG. 11, a fourth embodiment of the second embodiment is different from the first embodiment shown in FIG. 8 in that the buffer portion 243 of the buffer unit 24 does not completely pass through the hollow region 213. . As in the fourth embodiment shown in FIG. 11, the arm portion 221 can also be blocked and a cushioning effect can be generated to prevent the arm portion 221 from striking the lower edge of the mounting portion 214.

Referring to FIG. 6 to FIG. 11 , the buffer unit 24 in the first embodiment and the second embodiment described above is designed to match the angle of the arm portion 221 of the fuel tank cap unit 22 to prevent the arm portion 221 from striking the installation. Part 214 The possibility of the lower edge. However, if the bending angle of the arm portion 221 is too large, the arm portion 221 may hit the upper edge of the mounting portion 214 as shown in FIG. 7 before the arm portion 221 is blocked by the buffer unit 24, and thus The effect of preventing the arm portion 221 from striking the surrounding wall 211 cannot be surely achieved. Therefore, in addition to the above-described buffer unit 24, the angle of the arm portion 221 of the fuel tank cap unit 22 is also a point of design consideration. The angle of the arm portion 221 is designed to be appropriately bent so that the arm portion 221 contacts the buffer unit 24 before hitting the upper edge of the mounting portion 214, so that the buffer unit 24 can be prevented by the buffer unit 24. The impact of the arm portion 221 with the surrounding wall 211 avoids component damage that may occur under the long-term impact of the arm portion 221.

In summary, by the buffer unit 24 mounted on the mounting portion 214 of the surrounding wall 211, the fuel tank cap can be blocked when the lid body 222 of the fuel tank cap unit 22 is bounced from the closed position to the open position. The arm portion 221 of the unit 22 prevents the arm portion 221 from colliding with the lower edge of the mounting portion 214 of the surrounding wall 211, and the buffering effect can be generated by adding components without modifying the existing design, so that the present invention can be achieved. The purpose.

However, the above is only the embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications made by the patent application scope and the patent specification of the present invention are still It is within the scope of the patent of the present invention.

2‧‧‧Fuel cover device

21‧‧‧Fixed unit

210‧‧‧Inlet

211‧‧‧ Around the wall

212‧‧‧Extension wall

213‧‧‧The open space

22‧‧‧Fuel cover unit

221‧‧‧arm

222‧‧‧ cover

223‧‧‧Flexible mechanism

224‧‧‧ card hook

23‧‧‧Lock control unit

230‧‧‧ accommodating space

231‧‧‧ Shell

232‧‧‧Cards

233‧‧‧Flexible components

24‧‧‧buffer unit

Claims (10)

The utility model relates to a fuel tank cap device with a buffering effect, comprising: a fixing unit disposed at an inlet of a fuel tank oil filling pipe, and comprising a surrounding wall surrounding an oil inlet port communicating with the fuel tank oil filling pipe, and two surrounding An extending wall spaced apart from each other and extending outwardly, the surrounding wall is provided with a hollowed area between the extending walls, the surrounding wall having a mounting portion above the hollowed out area; a fuel tank cap unit, including An arm portion pivotally disposed between the extension walls and rotatable in the hollow region, and a cover body connecting the arm portion, the cover body being capable of being driven by the arm portion in a closed position and an open position Interlocking; a lock control unit is disposed in cooperation with the fuel tank cap unit, and controls the cover body to be rotated from the closed position to the open position; and a buffer unit mounted on the mounting portion of the surrounding wall and passing through The hollowed out area is configured to prevent the arm from colliding with the surrounding wall when the cover is rotated from the closed position to the open position. The fuel tank cap device of claim 1, wherein the lock control unit comprises a casing extending outward from the surrounding wall and surrounding an accommodating space, and is located in the accommodating space and can pass through The locking member surrounding the wall and the elastic member that abuts the locking member, and the fuel tank cap unit further includes an elastic mechanism disposed in the cover body, and is coupled to the cover body and matched The hook of the card set. The fuel tank cap device of claim 2, wherein, in the closed position, the cover is covered at the oil inlet, and the hook is Is a hooking member that passes through the surrounding wall, and the elastic mechanism is compressed to accumulate an elastic restoring force, and when the locking member is controlled to retract into the accommodating space, the hook cannot be set. In the locking member, the elastic restoring force accumulated by the elastic mechanism bounces the cover to the open position. In the open position, the cover is not covered by the oil inlet. The fuel tank cap device of claim 3, wherein the mounting portion is located between the extension lines of the extended walls. The fuel tank cap device of claim 4, wherein the buffer unit comprises a fixing portion fixed to an outer side of the mounting portion, and a bent portion is bent through the hollow portion from the lower end of the fixing portion, and is bent The buffer portion has an elastic shape, and when the cover body is bounced from the closed position to the open position, the buffer portion can block the arm portion to prevent the arm portion from hitting the lower edge of the mounting portion. The fuel tank cap device according to claim 5, wherein the fixing portion is attached to the mounting portion by screwing. The fuel tank cap device of claim 5, wherein the buffer unit further comprises a through portion fixed to the outside of the mounting portion and surrounding a through hole, the fixing portion being threaded through the wearing portion A hole is provided, and one end of the fixing portion is hooked to the through portion. The fuel tank cap device of claim 4, wherein the buffer unit comprises a fixing portion fixed to an outer side of the mounting portion, a buffer portion bent in a shape passing through the hollow portion, and a connecting portion a damper portion between the fixing portion and the buffer portion, when the cover body is bounced from the closed position to the open position, the damper portion can contact the arm portion The cushioning effect is provided when the punching portion is prevented from hitting the lower edge of the mounting portion. The fuel tank cap device of claim 8, wherein the damper portion is adapted to fill the damping oil, thereby generating an additional damping effect. The fuel tank cap device of claim 4, wherein the surrounding wall further has a convex portion extending outward from the outer edge of the mounting portion and having a height lower than the mounting portion and flush with the lower end of the mounting portion. In the outlet portion, the buffer unit includes a lap portion extending along the mounting portion and the outer edge of the protruding portion, an extension portion bent from the lower end of the lap portion and passing through the hollow portion, and a self The extending portion is bent and extends and has a resilient buffer portion. When the cover body is bounced from the closed position to the open position, the buffer portion can block the arm portion to prevent the arm portion from colliding with the arm portion. The lower edge of the mounting section.