CN117382402A - Press type fuel tank cap actuator - Google Patents

Abstract

The invention provides a push type fuel tank cap actuator, comprising: the shell is internally provided with an installation cavity, one end of the ejector rod is positioned in the installation cavity, the other end of the ejector rod extends out of the shell, the ejector rod can move up and down and rotate in the installation cavity, and the locking mechanism is arranged in the shell and comprises an elastic piece, a lock catch, a locking piece and a driving device, wherein the elastic piece is arranged between the lower end of the ejector rod and the installation cavity; the lock catch is rotatably arranged in the mounting cavity and positioned between the ejector rod and the locking piece, one end of the lock catch is hinged with the ejector rod, the ejector rod can rotate relative to the lock catch, the other end of the lock catch is positioned between the two plate bodies, and in the process that the ejector rod moves up and down under pressure, one end of the lock catch, which is far away from the ejector rod, can be locked or separated from the locking block on the locking piece; the driving device is used for driving the upper end of the locking piece to swing in a direction away from the ejector rod so as to limit the ejector rod to move up and down in the mounting cavity when being pressed. The whole actuator has simple structure, fewer parts, light design and convenient assembly.

Description

Press type fuel tank cap actuator

Technical Field

The invention relates to the technical field of automobile accessories, in particular to a pressing type fuel tank cap actuator.

Background

Nowadays, with the development of the automobile industry and the improvement of the automobile popularity, the performance requirements of people on the automobile are higher and higher, and the rapidness, convenience and safety of various operations of the automobile are also more important, so that the improvement of the automobile structure and the application of new technology are particularly important for automobile enterprises. The push-type fuel tank cap actuator is a locking mechanism of a fuel tank cap and is used for controlling the opening or closing of a small door of a fuel tank cap.

In the related art, in order to avoid misoperation, the small door of the fuel filler cap is opened and closed in a mode of combining a mechanical structure and an electric structure from a mechanical locking structure improvement.

In view of the above related art, the applicant believes that an actuator having a combination of a mechanical structure and an electric structure is complicated in structure, has a large number of parts, is inconvenient to assemble, and causes an excessive cost and inconvenience in production and installation in order to provide linear and rotational motions.

Disclosure of Invention

In view of the above, the present invention provides a push-type fuel tank cap actuator to solve the problems of complex structure and inconvenient assembly of the actuator combined with mechanical structure and electric structure.

The technical scheme of the invention is realized as follows:

the invention provides a push type fuel tank cap actuator, comprising:

the shell is internally provided with an installation cavity, and an installation hole communicated with the installation cavity is formed in the shell;

one end of the ejector rod is positioned in the mounting cavity, the other end of the ejector rod penetrates through the mounting hole and extends out of the shell, the ejector rod can move up and down in the mounting cavity, a spiral groove is formed in the surface of the ejector rod along the axial direction of the ejector rod, and a guide protrusion matched with the spiral groove is arranged on the inner wall of the shell;

the locking mechanism is arranged in the shell and comprises an elastic piece, a lock catch, a locking piece and a driving device, wherein the elastic piece is arranged between the lower end of the ejector rod and the mounting cavity;

the locking piece is vertically arranged on one side of the ejector rod, the lower end of the locking piece is rotationally connected with the mounting cavity, the upper end of the locking piece can swing relative to the ejector rod, the locking piece comprises two parallel plate bodies which are arranged at intervals and fixedly connected, a first chute and a second chute which are arranged up and down and are mutually communicated are arranged on the opposite surfaces of the two plate bodies, and a locking block is arranged in the first chute;

the lock catch is rotatably arranged in the mounting cavity and positioned between the ejector rod and the locking piece, one end of the lock catch is hinged with the ejector rod, the ejector rod can rotate relative to the lock catch, the other end of the lock catch is positioned between the two plate bodies, and in the process that the ejector rod moves up and down under pressure, one end of the lock catch, which is far away from the ejector rod, can slide in the first chute and the second chute and can be locked or separated from the locking block;

the driving device is used for driving the upper end of the locking piece to swing in a direction away from the ejector rod so as to limit the ejector rod to move up and down in the mounting cavity when being pressed.

On the basis of the technical scheme, preferably, the shell comprises a lower shell and an upper shell connected with the lower shell, the upper shell and the lower shell form an installation cavity therebetween, the installation hole is formed in the upper shell, the inner top surface of the lower shell is provided with a positioning rod, the axial lead of the bottom end of the ejector rod is provided with a positioning hole for inserting the positioning rod, the elastic piece is positioned in the positioning hole, the upper end of the elastic piece abuts against the top surface of the positioning hole, and the lower end of the elastic piece abuts against the positioning rod.

On the basis of the technical scheme, preferably, two hinge grooves are horizontally formed in the lower surface of the ejector rod along the circumferential direction of the ejector rod, and the two hinge grooves are respectively located on two sides of the spiral groove and are hinged with one end, away from the locking piece, of the lock catch.

On the basis of the technical scheme, preferably, the lock catch comprises a connecting piece, a lock ring and a locking piece, wherein the lock ring and the locking piece are respectively and fixedly arranged at two ends of the length direction of the connecting piece, the connecting piece is rotationally connected with the installation cavity through a first rotating shaft, the rotating direction of the first rotating shaft is consistent with the swinging direction of the locking piece, the lock ring is of a semicircular structure, two free ends of the lock ring are respectively provided with a clamping protrusion connected with a hinge groove, the other end of the locking piece is positioned between two plate bodies, a lock pin is arranged on the locking piece, and two ends of the lock pin can slide in a first chute and a second chute and are locked or separated with the lock block.

Further, preferably, the locking block is of an inverted triangle structure, the locking block divides the first sliding groove into a first guiding groove, a second guiding groove and a third guiding groove which are communicated sequentially, the first guiding groove and the third guiding groove are respectively located at two waist sides of the locking block, the first guiding groove is located at one side, far away from the ejector rod direction, of the locking block, the third guiding groove is located at one side, close to the ejector rod direction, of the locking block, the second guiding groove is located at the top of the locking block, the lower ends of the first guiding groove and the third guiding groove are communicated with the second sliding groove in a crossing mode, the top surface of the locking block is provided with a clamping groove clamped with the lock pin, and the clamping groove is of a V-shaped structure.

Further, it is preferable that the upper end of the second chute is opened toward the first guide groove.

Still further, preferably, a guide portion facing the clamping groove is provided at the top of the second guide groove, a first guide surface is provided on a side of the guide portion away from the first guide groove, the first guide surface is arc-shaped, the first guide surface faces the clamping groove in the vertical direction, a second guide surface is provided on a side of the guide portion close to the third guide groove, and the second guide surface is inclined toward the third guide groove.

On the basis of the technical scheme, preferably, the driving device comprises an electromagnet and a push rod, the electromagnet is fixedly arranged in the lower shell and located between the push rod and the locking piece, the push rod is horizontally located on one side, away from the push rod, of the electromagnet, a pull ring is fixedly arranged on the push rod, a stirring piece is fixedly arranged at the lower end of the locking piece, and the stirring piece is located between the pull ring and the electromagnet.

Preferably, the lower ends of the two plate bodies are detachably connected, the lower ends of the two plate bodies are rotatably connected with the mounting cavity through a second rotating shaft, and the second rotating shaft is parallel to the first rotating shaft.

Compared with the prior art, the invention has the following beneficial effects:

(1) According to the push type fuel tank cap actuator disclosed by the invention, the push rod is matched with the lock catch and the locking piece to realize the extension or retraction of the push rod in the shell, and meanwhile, in the switching process of the two states, the push rod is enabled to carry out position locking in the installation cavity, so that the locking or unlocking of the fuel tank cap door is realized, the fuel tank cap door can be prevented from being opened by mistakenly touching through the arrangement of the driving device, the whole actuator is simple in structure, fewer in parts, light in design and convenient to assemble;

(2) By arranging the spiral groove and the hinge groove on the surface of the ejector rod, a movable space exists when the lock catch is hinged with the hinge groove, and the ejector rod can rotate for a certain angle relative to the lock catch, so that the lock catch is always in a rotatable range of the hinge groove in the rotating process of the ejector rod, further, the lock catch swings in the installation cavity when moving up and down along with the ejector rod, and the lock catch is effectively and reliably locked or separated from a locking block on the locking piece in the swinging process;

(3) The lower end of the locking piece is rotationally connected in the mounting cavity through the second rotating shaft, so that the upper end of the locking piece can swing at a certain angle when being in sliding fit connection with the locking pin, and the locking pin can be flexibly matched with the locking piece, and the locking pin can be smoothly locked or separated from a clamping groove on the locking block;

(4) The locking block is arranged in the first sliding groove, the first sliding groove is divided into the first guiding groove, the second guiding groove and the third guiding groove, so that the lock catch can slide in the guiding groove in the up-down moving process, the clamping groove on the top surface of the locking block can be clamped or separated according to a certain path, the lock catch can be matched with the locking piece to complete the position switching of the ejector rod in the mounting cavity, the whole switching process is smooth and orderly, and the reliable locking or opening of the oil tank cover is ensured;

(5) By arranging the guide part, on one hand, the lock pin can be ensured to be smoothly guided to the top surface of the locking block and matched and clamped with the clamping groove; on the other hand, in the process of clamping the lock pin and the clamping groove, the lock pin can be smoothly separated from the clamping groove by pressing the ejector rod;

(6) The electromagnetic push rod is used for restraining the locking piece from swinging, so that the locking piece is in a fixed state in the installation cavity, under the premise that the locking piece cannot swing, the lock catch cannot continue swinging in the installation cavity, and then the lock catch, the locking piece and the push rod are in a mutually-dragging constraint state, so that the push rod cannot continue pressing at the moment, the relative positions of the push rod and the shell are kept fixed, and the phenomenon that the small door of the oil port cover is pressed by touching by mistake is avoided.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of a push-type fuel tank cap actuator of the present disclosure;

FIG. 2 is a top view of the push-type fuel tank cap actuator of the present disclosure;

FIG. 3 is a plan cross-sectional view taken at A-A of FIG. 2;

FIG. 4 is a schematic perspective view of an upper housing of the present disclosure;

FIG. 5 is a schematic perspective view of a push rod according to the present disclosure;

FIG. 6 is a schematic diagram of an assembly structure of a push rod and a locking mechanism disclosed by the invention;

FIG. 7 is an exploded view of the push-type fuel tank cap actuator of the present disclosure;

FIG. 8 is a schematic perspective view of a latch according to the present disclosure;

FIG. 9 is a schematic perspective view of a locking member according to the present disclosure;

reference numerals:

1. a housing; 10. a mounting cavity; 11. a mounting hole; 2. a push rod; 21. a spiral groove; 101. a guide protrusion; 3. a locking mechanism; 31. an elastic member; 32. locking; 33. a locking member; 34. a driving device; 331. a plate body; 332. a first chute; 333. a second chute; 334. a locking block; 12. an upper housing; 13. a lower housing; 131. a positioning rod; 22. positioning holes; 23. a hinge groove; 321. a connecting piece; 322. a locking ring; 323. a locking piece; s1, a first rotating shaft; 3221. the clamping bulge; 3231. a locking pin; 3321. a first guide groove; 3322. a second guide groove; 3323. a third guide groove; 3341. a clamping groove; 335. a guide section; 3351. a first guide surface; 3352. a second guide surface; 341. an electromagnet; 342. a push rod; 343. a pull ring; 336. a toggle member; s2, a second rotating shaft.

Detailed Description

The following description of the embodiments of the present invention will clearly and fully describe the technical aspects of the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, are intended to fall within the scope of the present invention.

As shown in fig. 1, in combination with fig. 2 to 7, the invention provides a push type fuel tank cap actuator, which comprises a shell 1, a push rod 2 and a locking mechanism 3.

Wherein, casing 1 is used for fixed mounting in car oil filler point department, has installation cavity 10 in the casing 1 for installation ejector pin 2 and locking mechanism 3, set up on the casing 1 with the mounting hole 11 that installation cavity 10 is linked together, be used for will assembling in installation cavity 10 ejector pin 2 stretches out casing 1 outside through mounting hole 11.

The ejector rod 2, one end of which is positioned in the installation cavity 10, and the other end of which passes through the installation hole 11 and extends out of the shell 1 for being connected with the filler cap hatch, the ejector rod 2 can move up and down in the installation cavity 10 along the installation hole 11, and the ejector rod 2 can extend or retract in the installation cavity 10 through the up and down movement of the ejector rod 2.

In this embodiment, the surface of the ejector rod 2 is provided with a spiral groove 21 along the axial direction thereof, the inner wall of the housing 1 is provided with a guide protrusion 101 matched with the spiral groove 21, and therefore, when one end of the ejector rod 2 extending out of the housing 1 is pressed, the ejector rod 2 can linearly move in the installation cavity 10, meanwhile, the guide protrusion 101 moves in the spiral groove 21, the ejector rod 2 can rotate in the installation cavity 10, and the ejector rod 2 moves up and down and rotates to cooperate with the locking mechanism 3 to act, so that one end of the ejector rod 2 located outside the housing 1 is extended or retracted.

In this embodiment, the ejector rod 2 moves up and down and rotates to cooperate with the locking mechanism 3 to realize the switching of the retraction or extension process of the ejector rod 2 in the installation cavity 10. In this embodiment, when the push rod 2 is pressed by the filler cap door, the filler cap door is closed when the push rod 2 is retracted in the installation cavity 10 and locked by the locking mechanism 3, and when the push rod 2 is pressed again by the filler cap door or the charging cap door, the push rod 2 extends out of the installation cavity 10, so that the filler cap door or the charging cap door is opened.

In order to realize the switching of the retraction or extension process of the ejector rod 2 in the mounting cavity 10, the present embodiment shows a preferred embodiment of the locking mechanism 3, specifically, the locking mechanism 3 is disposed inside the housing 1 and includes an elastic member 31, a lock catch 32, a locking member 33 and a driving device 34.

The elastic piece 31 is arranged between the lower end of the ejector rod 2 and the installation cavity 10, when the pressing force is applied to the ejector rod 2, the ejector rod 2 can compress the elastic piece 31 so that the ejector rod 2 can retract in the installation cavity 10, and when the pressing force is released to the ejector rod 2, the ejector rod 2 has the movement potential energy which is ejected relative to the shell 1 under the action of the elastic piece 31.

The locking piece 33 is vertically located ejector rod 2 one side, and the lower extreme and the installation cavity 10 of locking piece 33 rotate to be connected, and the upper end of locking piece 33 can swing for ejector rod 2, and locking piece 33 includes two parallel interval setting and fixed continuous plate body 331, and the opposite one side of two plate bodies 331 has first spout 332 and second spout 333 that set up from top to bottom and communicate each other, is provided with locking piece 334 in the first spout 332.

The lock catch 32 is rotatably arranged in the mounting cavity 10 and is positioned between the ejector rod 2 and the locking piece 33, one end of the lock catch 32 is hinged with the ejector rod 2, the ejector rod 2 can rotate relative to the lock catch 32, the other end of the lock catch 32 is positioned between the two plate bodies 331, and in the process of pressing up and down the ejector rod 2, one end of the lock catch 32 far away from the ejector rod 2 can slide in the first sliding groove 332 and the second sliding groove 333 and can be locked or separated from the locking block 334.

With the above technical solution, in the initial state, the filler cap door at the filler is in the closed state, the ejector rod 2 is in the compressed state, and the lock block 334 on the lock catch 32 and the lock member 33 is in the lock connection state. When the small door of the filler cap needs to be opened, downward pressure is applied to the ejector rod 2 by pressing the small door of the filler cap, the ejector rod 2 rotates while moving downwards in the installation cavity 10, and because one end of the lock catch 32 is hinged to the ejector rod 2, and meanwhile the ejector rod 2 can rotate relative to the lock catch 32, when the ejector rod 2 moves downwards, the lock catch 32 and the hinged end of the ejector rod 2 can be driven to move downwards, the middle part of the lock catch 32 is rotationally arranged in the installation cavity 10, the other end of the lock catch 32 swings upwards between the two plate bodies 331, so that one end, far away from the ejector rod 2, of the lock catch 32 is separated from the locking block 334, the ejector rod 2 stretches out from the shell 1 under the action of the elastic piece 31, and therefore the small door of the filler cap is sprung open, and meanwhile, one end, far away from the ejector rod 2, of the lock catch 32 swings downwards and slides downwards from the first sliding groove 332 into the second sliding groove 333.

When the small door of the filler cap needs to be closed, downward pressure is applied to the ejector rod 2 by pressing the small door of the filler cap, the ejector rod 2 compresses the elastic piece 31 and retracts in the shell 1, the ejector rod 2 moves downward and drives the lock catch 32 to move downward with the hinged end of the ejector rod 2, the other end of the lock catch 32 swings upwards between the two plate bodies 331, the end, away from the ejector rod 2, of the lock catch 32 slides upwards into the first sliding groove 332 from the second sliding groove 333 to be connected with the locking block 334 in a locking mode, and therefore the small door of the filler cap is closed at the filler cap.

In the above-mentioned structural mode, although the locking block 334 on the lock catch 32 and the locking piece 33 can be locked, and then the ejector rod 2 is guaranteed to retract into the shell 1, there is a situation that the small door of the filler cap is pressed by touching by mistake, under the situation, the locking block 334 on the lock catch 32 and the locking piece 33 is separated, and then the ejector rod 2 stretches out of the shell 1, and the small door of the filler cap is sprung open, so that potential safety hazards exist.

In order to avoid false touches causing the filler cap hatch to open, this embodiment is addressed by the drive means 34. In this embodiment, the lock catch 32 forms a seesaw structure swing between the ejector rod 2 and the locking member 33, and one end of the lock catch 32 away from the ejector rod 2 drives the upper end of the locking member 33 to swing relative to the ejector rod 2 in the up-down swing process, so that the lock catch 32 slides back and forth in the first chute 332 and the second chute 333, and the swing track of one end of the lock catch 32 away from the ejector rod 2 is an arc track, and when the lock catch 32 cannot slide in the first chute 332 and the second chute 333, the movement relationship among the lock catch 32, the ejector rod 2 and the locking member 33 is limited, and at this time, the ejector rod 2 can be locked in the installation cavity 10 without being affected by pressing.

Therefore, in this embodiment, the driving device 34 drives the upper end of the locking member 33 to swing in a direction away from the ejector rod 2, so that the locking member 33 is fixed in position in the mounting cavity 10, and when the locking member 33 cannot swing, the locking member 32 can be restricted from swinging, and further, the ejector rod 2 is restricted from moving up and down in the mounting cavity 10 when receiving a pressing force.

Through the setting of drive arrangement 34, when the oil port cover door spring-open is needed, drive arrangement 34 releases the restriction to locking piece 33 position, ejector pin 2 is under hasp 32 and locking piece 33 mechanical motion cooperation this moment, can realize that ejector pin 2 stretches out or withdraws, and then realize that the oil port cover door spring-open or closes, finish when the oil filling, and after the oil port cover door closed, can lock the position of locking piece 33 through drive arrangement 34, ejector pin 2 can't realize stretching out or withdrawing under hasp 32 and the mutual constraint effect of locking piece 33 this moment, thereby keep ejector pin 2 to be in with the locking state all the time in installation cavity 10, and can't break away from, avoid the oil port cover door mistake to touch and press and spring-open.

According to the push type fuel tank cap actuator disclosed by the invention, the push rod 2 is matched with the lock catch 32 and the locking piece 33 to realize that the push rod 2 stretches out or retracts in the shell 1, and meanwhile, in the switching process of the two states, the push rod 2 is locked in the installation cavity 10, so that the small door of the fuel tank cap is locked or unlocked, and the small door of the fuel tank cap can be prevented from being opened by touching by mistake through the arrangement of the driving device 34.

In order to facilitate the installation of the ejector rod 2 and the locking mechanism 3 in the housing 1, referring to fig. 3 and 7, in this embodiment, the housing 1 is configured as an upper housing 121 and a lower housing 131 that are connected up and down, a snap connection manner or a bolt connection manner is adopted between the upper housing 121 and the lower housing 131, and an installation cavity 10 is formed between the upper housing 121 and the lower housing 131. In the present embodiment, the mounting hole 11 is provided on the upper case 121.

The top surface is provided with locating lever 131 in lower casing 131, and ejector pin 2 bottom axial lead department has the locating hole 22 that supplies locating lever 131 to insert, and elastic component 31 is located locating hole 22, and its upper end is held with the locating hole 22 top surface, and the lower extreme is held with locating lever 131.

By adopting the technical scheme, when the ejector rod 2 is installed, the upper end of the ejector rod 2 passes through the installation hole 11 from the inside of the upper shell 121 and extends out of the upper shell 121, then the elastic piece 31 is inserted into the positioning hole 22 at the lower end of the ejector rod 2, after the lock catch 32 and the locking piece 33 are installed in the inside of the upper shell 121, the positioning rod 131 on the lower shell 131 is inserted into the positioning hole 22, so that the upper shell 121 and the lower shell 131 are connected, and the whole actuator is compact in assembly structure in the shell 1 and convenient to assemble.

Because one end of the lock catch 32 is hinged to the ejector rod 2, if the ejector rod 2 only moves up and down, the hinged end of the lock catch 32 and the ejector rod 2 cannot swing up and down, therefore, referring to fig. 5-8, in this embodiment, the ejector rod 2 is rotatable when being set up to move up and down, meanwhile, two hinge grooves 23 are horizontally formed on the lower surface of the ejector rod 2 along the circumferential direction of the ejector rod 2, the two hinge grooves 23 are respectively located at two sides of the spiral groove 21, and therefore, one end of the lock catch 32 is in a claw structure to be respectively clamped with the two hinge grooves 23, so that when the ejector rod 2 moves up and down, the lock catch 32 and one end of the ejector rod 2 can be driven to move up and down, meanwhile, a movable space exists between the lock catch 32 and the hinge grooves 23, and the ejector rod 2 can rotate by a certain angle relative to the lock catch 32, at this moment, the hinge grooves 23 are changed relative to the lock catch 32, so that the lock catch 32 is always located in a rotatable range of the hinge grooves 23, and further, swinging of the lock catch 32 occurs in the installation cavity 10 when the ejector rod 2 moves up and down, and thus locking of the lock catch 32 and locking piece 334 is completed or the locking piece 33 is released.

The embodiment shows a preferred structure mode of the lock catch 32, specifically, the lock catch 32 includes a connecting piece 321, a lock ring 322 and a locking piece 323, the lock ring 322 and the locking piece 323 are respectively and fixedly arranged at two ends of the length direction of the connecting piece 321, the connecting piece 321 is rotationally connected with the installation cavity 10 through a first rotating shaft S1, in this embodiment, the first rotating shaft S1 is located at the center of the connecting piece 321, the whole lock catch 32 is in a teeterboard structure mode in the installation cavity 10, the rotating direction of the first rotating shaft S1 is consistent with the swinging direction of the locking piece 33, the lock ring 322 is in a semicircular structure, two free ends of the lock ring 322 are respectively provided with a clamping protrusion 3221 connected with the hinge groove 23, the other end of the locking piece 323 is located between the two plate bodies 331, the locking piece 323 is provided with a locking pin 3231, and two ends of the locking pin 3231 can slide in the first sliding groove 332 and the second sliding groove 333 and be locked or separated from the locking piece 334.

By adopting the above technical scheme, through the connection between the clamping protrusion 3221 and the hinge groove 23, the ejector rod 2 moves up and down and rotates, the hinge groove 23 can rotate a certain angle relative to the clamping protrusion 3221, and simultaneously, when the ejector rod 2 moves up and down, the lock ring 322 is driven to swing relative to the first rotating shaft S1, so that the locking piece 323 swings between the two plate bodies 331, the locking piece 323 slides in the first sliding groove 332 and the second sliding groove 333 through the locking pin 3231 in the swinging process, and the upper end of the locking piece 33 is driven to swing in the sliding process of the locking pin 3231, so that the locking pin 3231 is in locking connection or separation with the locking piece 334 in the sliding process of the first sliding groove 332 and the second sliding groove 333 is realized.

In the specific implementation process, in the initial state, the small door of the oil filler at the oil filler is in a closed state, the ejector rod 2 is in a compressed state, the lock pin 3231 on the lock plate 323 is in the first chute 332 and is in a locking connection state with the locking block 334 on the locking piece 33, when the small door of the oil filler needs to be opened, the ejector rod 2 is pressed to apply downward pressure to the small door of the oil filler, the ejector rod 2 rotates relative to the lock catch 32 while moving downward, the lock ring 322 can be driven to move downward, the whole lock catch 32 swings in the installation cavity 10, at the moment, the lock plate 323 swings upwards between the two plate bodies 331, so that the lock pin 3231 is separated from the locking block 334 in the first chute 332, the ejector rod 2 stretches out of the shell 1 under the action of the elastic piece 31, and the small door of the oil filler is sprung open, meanwhile, when the locking plate 323 moves upwards along with the ejector rod 2, the locking plate 323 swings downwards in the first sliding groove 332 and enters the second sliding groove 333, when the small door of the oil filler cap needs to be closed, downward pressure is applied to the ejector rod 2 by pressing the small door of the oil filler cap, the ejector rod 2 compresses the elastic piece 31 and retracts in the shell 1, the ejector rod 2 drives the locking plate 323 to swing upwards between the two plate bodies 331, the locking pin 3231 swings towards the top end of the first sliding groove 332 from the second sliding groove 333, after the locking pin 3231 enters the first sliding groove 332, the pressing force of the ejector rod 2 is released, and under the action of the elastic piece 31, the ejector rod 2 drives the locking pin 3231 to fall onto the locking piece 334 and abut against the locking piece 334, so that locking connection is realized, and therefore the small door of the oil filler cap is closed at the oil filler port.

In order to enable the lock pin 3231 to be smoothly locked or disengaged from the locking block 334 in the up-and-down sliding process of the first chute 332 and the second chute 333, the following technical scheme is adopted in this embodiment.

Referring to fig. 6, 7 and 9, in this embodiment, the locking block 334 is configured to have an inverted triangle structure, the locking block 334 divides the first chute 332 into a first guiding groove 3321, a second guiding groove 3322 and a third guiding groove 3323 which are sequentially communicated, the first guiding groove 3321 and the third guiding groove 3323 are respectively located at two waist sides of the locking block 334, the first guiding groove 3321 is located at one side of the locking block 334 far away from the ejector rod 2, the third guiding groove 3323 is located at one side of the locking block 334 near the ejector rod 2, the second guiding groove 3322 is located at the top of the locking block 334, the lower ends of the first guiding groove 3321 and the third guiding groove 3323 are in intersection communication with the second chute 333, the top surface of the locking block 334 is provided with a clamping groove 3341 clamped with the locking pin 3231, and the clamping groove 3341 has a V-shaped structure.

With the above technical solution, when the small door of the filler cap at the filler is in the closed state, the lock pin 3231 is in the second guide groove 3322 and is located in the clamping groove 3341 at the top end of the locking block 334, at this time, the ejector rod 2 is in a compressed state, because the elastic member 31 has an upward elastic force, the ejector rod 2 has an upward movement potential energy, so the lock ring 322 has an upward swinging potential energy under the driving of the ejector rod 2, and because the whole lock catch 32 is in a teeterboard structure, the lock piece 323 swings downward, and the lock pin 3231 has a downward extrusion force on the clamping groove 3341, so that the ejector rod 2 and the lock catch 32 are limited in movement in the installation cavity 10, at this time, the ejector rod 2 is in a compressed and locked state in the installation cavity 10.

When the small filler cap door at the filler opening needs to be opened, the pressure is applied to the ejector rod 2 through the small filler cap door, the ejector rod 2 compresses the elastic piece 31 to move downwards to drive the lock catch 32 to swing, the locking piece 323 swings upwards at the moment and is separated from the clamping groove 3341, when the ejector rod 2 releases the pressing force, under the elastic force of the elastic piece 31, the ejector rod 2 moves upwards to enable the locking piece 323 to swing downwards, the locking pin 3231 on the locking piece 323 enters the second sliding groove 333 from the second guiding groove 3322 downwards through the third guiding groove 3323, and at the moment, the ejector rod 2 extends completely to open the small filler cap door. When the small door of the filler cap at the filler opening needs to be closed again, the pressure is applied to the ejector rod 2 through the small door of the filler cap, the ejector rod 2 compresses the elastic piece 31 to move downwards to drive the lock catch 32 to swing, at the moment, the locking piece 323 swings upwards relative to the first rotating shaft S1, the locking pin 3231 moves upwards from the second sliding groove 333 to the second guiding groove 3322 through the first guiding groove 3321, the pressing force of the ejector rod 2 is released, and under the action of the elastic piece 31, the ejector rod 2 drives the locking pin 3231 to fall into the clamping groove 3341, so that the locking pin 3231 and the clamping groove 3341 are locked. Since the catch groove 3341 has a V-shaped structure, the lock pin 3231 is defined in the catch groove 3341, and the lock pin 3231 does not come out of the catch groove 3341 when the lock catch 32 is not subjected to an upward swing force, thereby realizing that the lock pin 3231 and the catch groove 3341 are locked.

It should be noted that the lower end of the locking member 33 of the present embodiment is rotatably connected in the mounting cavity 10, so that the upper end of the locking member 33 can swing at a certain angle when being slidably connected with the locking piece 323, so that the locking pin 3231 can be flexibly matched with the locking member 33, and the locking pin 3231 can be smoothly locked or unlocked with the locking block 334 on the locking member 33.

The above-mentioned structure mode of locking piece 33 can make hasp 32 in the swing in-process, easily realize carrying out the swing of different routes on locking piece 33 to the effectual draw-in groove 3341 that accomplishes lockpin 3231 and locking piece 334 locks or breaks away from, realizes the switching of ejector pin 2 withdrawal or extension state from this, ensures that ejector pin 2 passes through the convenient realization of mechanical structure's locking structure in casing 1 and withdraws or the state change that stretches out, and then realizes opening or closing of filler cap door.

It is noted that, in this embodiment, the locking member 33 is set to be two plates 331 fixed at intervals, so that the processing and the assembly can be facilitated, and meanwhile, the locking plate 323 is located between the two plates 331 and is limited between the two plates 331 by the locking pin 3231, so that the whole locking mechanism 3 is compact in structure, stable in structural strength, and capable of prolonging the service life of the locking mechanism 3.

As some preferred embodiments, the upper end of the second chute 333 is open toward the first guide slot 3321. Therefore, when the lock pin 3231 is located in the first chute 332, and the lock pin 3231 and the clamping groove 3341 are required to be clamped, the lock pin 3231 swings upward relative to the first rotating shaft S1 through the ejector rod 2, the lock pin 3231 slides upward from the first chute 332, after the lock pin 3231 enters the first guiding groove 3321, the lock block 334 contacts one side far away from the ejector rod 2, so that the lock pin 3231 slides upward along the side wall of the lock block 334 and is smoothly guided into the second guiding groove 3322, and when the lock pin 3231 moves into the second guiding groove 3322, the connection with the clamping groove 3341 can be completed.

When the lock pin 3231 moves to the second guide groove 3322, in order to guide the lock pin 3231 into the locking groove 3341 smoothly, in this embodiment, a guide portion 335 facing the locking groove 3341 is provided at a tip of the second guide groove 3322, a first guide surface 3351 is provided at a side of the guide portion 335 facing away from the first guide groove 3321, and the first guide surface 3351 is arc-shaped and faces the locking groove 3341 in a vertical direction. In this way, after the lock pin 3231 moves to the top end of the second guide groove 3322, it touches the first guide surface 3351, and when the pressure of the ejector rod 2 is released, the lock piece 323 swings downward under the action of the elastic member 31, and the lock pin 3231 instantaneously drops into the clamping groove 3341 along the first guide surface 3351, so as to be connected with the clamping groove 3341.

When the lock pin 3231 and the locking groove 3341 are required to be separated, the guide portion 335 is provided with a second guide surface 3352 on a side close to the third guide groove 3323 in order to smoothly separate the two, and the second guide surface 3352 is inclined toward the third guide groove 3323. In this way, when downward pressure is applied to the ejector rod 2 in the locked state of the lock pin 3231 and the clamping groove 3341, the lock plate 323 swings upward, the lock pin 3231 is separated from the clamping groove 3341 upward, and then slides along the second guide surface 3352 in a direction approaching to the third guide groove 3323, and at the same time, the upper end of the whole lock member 33 swings away from the ejector rod 2 in the sliding process of the lock pin 3231 on the second guide surface 3352, so that the lock pin 3231 is positioned at the junction of the top end of the third guide groove 3323 and the second guide surface 3352, and after the pressure of the ejector rod 2 is released, the lock plate 323 swings downward under the action of the elastic member 31, and the lock pin 3231 slides into the second slide groove 333 smoothly along the third guide groove 3323.

When the filler cap door is in a closed state, in order to avoid that the filler cap door is opened due to false touch, the embodiment is realized through the driving device 34, specifically, the driving device 34 comprises an electromagnet 341 and a push rod 342, the electromagnet 341 is fixedly arranged in the lower shell 131 and is positioned between the ejector rod 2 and the locking piece 33, the push rod 342 is horizontally positioned on one side, away from the ejector rod 2, of the electromagnet 341, a pull ring 343 is fixedly arranged on the push rod 342, a stirring piece 336 is fixedly arranged at the lower end of the locking piece 33, and the stirring piece 336 is positioned between the pull ring 343 and the electromagnet 341.

By adopting the technical scheme, when the lock pin 3231 is in the locking state in the clamping groove 3341, the electromagnet 341 is electrified, the electromagnet 341 drives the push rod 342 to translate towards the push rod 2, the push rod 342 can stir the stirring piece 336 through the pull ring 343 in the translation process, the upper end of the locking piece 33 swings towards the direction far away from the push rod 2, at the moment, the whole locking piece 33 is in a fixed state in the mounting cavity 10, and the swing moment of the lock catch 32 is fixed, so that the lock catch 32 cannot swing continuously in the mounting cavity 10 on the premise that the locking piece 33 cannot swing, and the lock catch 32, the locking piece 33 and the push rod 2 are in a mutually-pulling constraint state, so that the push rod 2 cannot be continuously pressed at the moment, the relative position of the push rod 2 and the shell 1 is kept fixed, and the phenomenon that the small door of the oil port cover is mistakenly touched and pressed to be sprung open is avoided.

In this embodiment, the lower ends of the two plates 331 are detachably connected, so that the locking plate 323 is installed between the two plates 331 before the two plates 331 are not fixedly connected, the locking pin 3231 is inserted into the first chute 332 or the second chute 333, and then the two plates 331 are fixed by a snap connection or a bolt connection, so that one end of the lock catch 32 is connected with the locking member 33, and the whole actuator and the lock catch 32 are assembled conveniently. The lower ends of the two plate bodies 331 are rotationally connected with the installation cavity 10 through a second rotating shaft S2, the second rotating shaft S2 is parallel to the first rotating shaft S1, the second rotating shaft S2 can be connected in a clamping mode through the second rotating shaft S2, the upper shell 121 and the lower shell 131 can be utilized to achieve rotational connection of the lower ends of the locking pieces 33 in the installation cavity 10, and similarly, the installation mode of the first rotating shaft S1 in the installation cavity 10 is consistent with the installation mode of the second rotating shaft S2.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.

Claims (9)

1. A push-type fuel tank cap actuator, comprising:

the device comprises a shell (1), wherein an installation cavity (10) is formed in the shell (1), and an installation hole (11) communicated with the installation cavity (10) is formed in the shell (1);

one end of the ejector rod (2) is positioned in the mounting cavity (10), the other end of the ejector rod passes through the mounting hole (11) and extends out of the shell (1), the ejector rod (2) can move up and down in the mounting cavity (10), a spiral groove (21) is formed in the surface of the ejector rod (2) along the axial direction of the ejector rod, and a guide protrusion (101) matched with the spiral groove (21) is arranged on the inner wall of the shell (1);

the locking mechanism (3) is arranged in the shell (1) and comprises an elastic piece (31), a lock catch (32), a locking piece (33) and a driving device; the elastic piece (31) is arranged between the lower end of the ejector rod (2) and the mounting cavity (10);

the locking piece (33) is vertically arranged on one side of the ejector rod (2), the lower end of the locking piece (33) is rotationally connected with the mounting cavity (10), the upper end of the locking piece (33) can swing relative to the ejector rod (2), the locking piece (33) comprises two plate bodies (331) which are arranged in parallel at intervals and fixedly connected, a first chute (332) and a second chute (333) which are arranged up and down and are mutually communicated are arranged on opposite surfaces of the two plate bodies (331), and a locking block (334) is arranged in the first chute (332);

the lock catch (32) is rotatably arranged in the mounting cavity (10) and is positioned between the ejector rod (2) and the locking piece (33), one end of the lock catch (32) is hinged with the ejector rod (2), the ejector rod (2) can rotate relative to the lock catch (32), the other end of the lock catch (32) is positioned between the two plate bodies (331), and in the process of the up-and-down movement of the ejector rod (2) under pressure, one end of the lock catch (32) away from the ejector rod (2) can slide in the first chute (332) and the second chute (333) and can be locked or separated from the locking block (334);

the driving device is used for driving the upper end of the locking piece (33) to swing in a direction away from the ejector rod (2) so as to limit the ejector rod (2) to move up and down in the mounting cavity (10) when being pressed.

2. The push-type fuel tank cap actuator of claim 1, wherein: the shell (1) comprises a lower shell (13) and an upper shell (12) connected with the lower shell (13), wherein the upper shell (12) and the lower shell (13) form a mounting cavity (10), the mounting hole (11) is formed in the upper shell (12), a positioning rod (131) is arranged on the inner top surface of the lower shell (13), a positioning hole (22) for the positioning rod (131) to be inserted is formed in the axial lead of the bottom end of the ejector rod (2), the elastic piece (31) is positioned in the positioning hole (22), the upper end of the elastic piece is propped against the top surface of the positioning hole (22), and the lower end of the elastic piece is propped against the positioning rod (131).

3. The push-type fuel tank cap actuator of claim 1, wherein: two hinge grooves (23) are horizontally formed in the lower surface of the ejector rod (2) along the circumferential direction of the ejector rod, and the two hinge grooves (23) are respectively located at two sides of the spiral groove (21) and are used for being hinged with one end, away from the locking piece (33), of the lock catch (32).

4. The push-type fuel tank cap actuator of claim 3, wherein: the utility model provides a hasp (32) is including connecting piece (321), catch (322) and locking piece (323) are fixed respectively and are set up at connecting piece (321) length direction both ends, connecting piece (321) rotate through first pivot (S1) and installation cavity (10) and are connected, the direction of rotation of first pivot (S1) is unanimous with the swing direction of locking piece (33), catch (322) are semi-circular structure, two free ends of catch (322) are provided with joint arch (3221) that are connected with hinge groove (23) respectively, the other end of locking piece (323) is located between two plate bodies (331), be provided with lockpin (3231) on locking piece (323), the both ends of lockpin (3231) can slide in first spout (332) and second spout (333) and with locking piece (334) locking or break away from.

5. The push-type fuel tank cap actuator of claim 4, wherein: the locking block (334) is of an inverted triangle structure, the locking block (334) divides a first sliding groove (332) into a first guiding groove (3321), a second guiding groove (3322) and a third guiding groove (3323) which are communicated sequentially, the first guiding groove (3321) and the third guiding groove (3323) are respectively located at two waist sides of the locking block (334), the first guiding groove (3321) is located at one side, far away from the ejector rod (2), of the locking block (334), the third guiding groove (3323) is located at one side, close to the ejector rod (2), of the locking block (334), the second guiding groove (3322) is located at the top of the locking block (334), the lower ends of the first guiding groove (3321) and the third guiding groove (3323) are communicated with the second sliding groove (333), the top surface of the locking block (334) is provided with a clamping groove (3341) which is clamped with a locking pin (3231), and the clamping groove (3341) is of a V-shaped structure.

6. The push-type fuel tank cap actuator of claim 5, wherein: the upper end opening of the second chute (333) faces the first guide groove (3321).

7. The push-type fuel tank cap actuator of claim 6, wherein: the top end of the second guide groove (3322) is provided with a guide part (335) facing the clamping groove (3341), one side, far away from the first guide groove (3321), of the guide part (335) is provided with a first guide surface (3351), the first guide surface (3351) is arc-shaped, the vertical direction faces the clamping groove (3341), one side, close to the third guide groove (3323), of the guide part (335) is provided with a second guide surface (3352), and the second guide surface (3352) is inclined towards the third guide groove (3323).

8. The push-type fuel tank cap actuator of claim 5, wherein: the driving device comprises an electromagnet (341) and a push rod (342), wherein the electromagnet (341) is fixedly arranged in the lower shell (13) and is located between the ejector rod (2) and the locking piece (33), the push rod (342) is horizontally located on one side, away from the ejector rod (2), of the electromagnet (341), a pull ring (343) is fixedly arranged on the push rod (342), a stirring piece (336) is fixedly arranged at the lower end of the locking piece (33), and the stirring piece (336) is located between the pull ring (343) and the electromagnet (341).

9. The push-type fuel tank cap actuator of claim 4, wherein: the lower ends of the two plate bodies (331) are detachably connected, the lower ends of the two plate bodies (331) are rotatably connected with the mounting cavity (10) through a second rotating shaft (S2), and the second rotating shaft (S2) is parallel to the first rotating shaft (S1).