CN117569691A

CN117569691A - Automobile flap switch actuator

Info

Publication number: CN117569691A
Application number: CN202311424950.2A
Authority: CN
Inventors: 熊鸿斌; 靖伟; 张宇航; 郑生海
Original assignee: Hubei Saiensi Science & Technology Co ltd
Current assignee: Hubei Saiensi Science & Technology Co ltd
Priority date: 2023-10-30
Filing date: 2023-10-30
Publication date: 2024-02-20

Abstract

The invention provides an automobile flap switch actuator, which comprises: the shell is internally provided with an installation cavity; the locking mechanism is positioned in the installation cavity and comprises an elastic piece, a lock catch and a locking piece, wherein the elastic piece is arranged between the lower end of the ejector rod and the installation cavity; the locking mechanism is positioned in the mounting cavity and used for locking or unlocking the ejector rod in the mounting cavity. The whole actuator has simple structure, fewer parts, light design and convenient assembly.

Description

Automobile flap switch actuator

Technical Field

The invention relates to the technical field of automobile accessories, in particular to an automobile flap switch 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 automobile opening and closing actuator is a locking mechanism of the fuel tank cover or the charging cover and is used for controlling the opening or closing of the small fuel tank cover door or the small charging cover door.

In the related art, in order to avoid the situation of misoperation, the small door of the fuel filler cap or the small door of the charging 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 invention provides an actuator for opening and closing an automobile flap, which solves the problems that the actuator combining a mechanical structure and an electric structure is complex in structure and inconvenient to assemble.

The technical scheme of the invention is realized as follows:

the invention provides an automobile flap switch 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 positioned in the installation cavity and comprises an elastic piece, a lock catch and a locking piece, wherein the elastic piece is arranged between the lower end of the ejector rod and the installation cavity, the locking piece is arranged on one side of the ejector rod, the upper end of the locking piece is rotationally connected with the inner wall of the installation cavity, a first chute is arranged at the upper end of one surface of the locking piece, which faces the ejector rod, a second chute communicated with the first chute is arranged at the lower end of the first chute, a locking block is arranged in the second chute, one end of the lock catch is movably sleeved at the bottom end of the ejector rod and can move up and down with the ejector rod, the ejector rod can rotate relative to the lock catch, and in the process of the forced up and down movement of the ejector rod, the other end of the lock catch can slide in the first chute and the second chute so that the other end of the lock catch is clamped with or separated from the locking block;

the locking mechanism is positioned in the mounting cavity and used for locking or unlocking the ejector rod in the mounting cavity.

On the basis of the technical scheme, preferably, the shell comprises a lower shell and an upper shell connected with the lower shell, the mounting hole is formed in the top of the upper shell, the inner top surface of the lower shell is provided with a positioning rod, the axis of the bottom end of the ejector rod is provided with a positioning hole for the positioning rod to be inserted, the elastic piece is positioned in the positioning hole, the upper end of the elastic piece is propped against the top surface of the positioning hole, and the lower end of the elastic piece is propped against the positioning rod.

On the basis of the technical scheme, preferably, the guide sleeve is detachable from the peripheral wall at the bottom end of the ejector rod, the annular groove is formed in the peripheral wall of the guide sleeve, the lock catch comprises a lock sleeve with a semicircular annular structure, the lock sleeve is horizontally inserted into the annular groove and can horizontally rotate relative to the annular groove, and the outer surface of the lock sleeve is provided with a clamping block clamped with the locking block.

Further, preferably, two arc-shaped vertical plates are vertically and fixedly arranged in the lower shell, the two arc-shaped vertical plates are positioned at two sides of the clamping block, and the inner diameter of the enclosing body formed by the two arc-shaped vertical plates is matched with the outer diameter of the lock sleeve.

On the basis of the technical scheme, preferably, the locking block is of a triangular structure, the second sliding groove is divided into a first guiding groove, a second guiding groove and a third guiding groove which are communicated sequentially by the locking block, the first guiding groove and the third guiding groove are respectively located at two waist side sides of the locking block, the second guiding groove is located at the bottom of the locking block, the upper ends of the first guiding groove and the third guiding groove are communicated with the first sliding groove in a crossing mode, and the bottom surface of the locking block is provided with a clamping groove which is clamped with the clamping block.

Further, preferably, the lower end opening of the first slide groove is directed to the first guide groove, and the position where the third guide groove communicates with the first slide groove is located above one side of the lock block directed to the first guide groove.

Still further, preferably, the second guide groove bottom surface is provided with a guide projection having a first guide surface and a second guide surface connected to each other, the first guide surface facing the first guide groove, and a length direction of the first guide surface corresponding to a middle portion of the card groove, the second guide surface being inclined downward toward the third guide groove.

On the basis of the above technical solution, preferably, the lower portion of the locking member has an insertion opening communicating with the second guide groove, and the insertion opening is used for allowing the clamping block to enter the second slide groove.

On the basis of the technical scheme, preferably, the locking mechanism comprises a motor, a gear and a rack, the surface of the ejector rod is provided with a locking groove, the rack is horizontally and slidably arranged on the inner top surface of the mounting cavity, an output shaft of the motor is connected with the gear, the gear is meshed with the rack, and the end part of the rack is provided with a stop part for entering and exiting the locking groove.

On the basis of the technical scheme, the emergency starting device further comprises an emergency starting device, the emergency starting device comprises a translation plate, a traction piece and a tension spring, the top of the upper shell is provided with a translation groove, the translation plate is horizontally arranged in the translation groove in a sliding mode, the sliding direction of the translation plate is parallel to the translation direction of the rack, the traction piece is fixedly arranged at one end of the translation plate, a moving hole is formed in the upper shell, the upper end of the rack is fixedly provided with a stirring portion extending out of the moving hole, the translation plate is provided with a pushing portion for pushing the stirring portion to move away from the direction of the locking groove, the upper shell is fixedly provided with a first connecting portion, the bottom of the translation plate is fixedly provided with a second connecting portion towards one end of the traction piece, and two ends of the tension spring are respectively connected with the first connecting portion and the second connecting portion.

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

(1) According to the automobile flap switch actuator disclosed by the invention, the ejector rod and the locking mechanism are mutually matched to realize the extension or retraction of the ejector rod in the shell, and meanwhile, in the switching process of the two states, the position of the ejector rod is locked in the installation cavity, so that the locking or unlocking of the small door of the oil filler flap or the small door of the charging flap is realized, and the small door of the oil filler flap or the small door of the charging flap can be prevented from being touched and opened by mistake through the arrangement of the locking mechanism;

(2) The lock catch is arranged into the lock sleeve with a circular structure and the clamping block connected with the lock sleeve, the lock sleeve is horizontally inserted into the annular groove of the guide sleeve, the lock catch can slightly and horizontally rotate in the process of moving up and down along with the guide sleeve, so that the lock catch is suitable for sliding in the first sliding groove and the second sliding groove, and the position of the clamping block in the sliding groove is dynamically adjusted, thereby flexibly realizing up-and-down sliding in the sliding groove and simultaneously realizing locking with the locking block; (3) The locking block is arranged in the second sliding groove, the second 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 lock catch can be clamped with or separated from the clamping groove on the bottom surface of the locking block according to a certain path, the lock catch can be matched with the locking piece to finish 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;

(4) The lower end opening of the first chute faces the first guide groove, so that the clamping block can be ensured to move according to a preset path, and the clamping block is guided to smoothly and orderly slide in the second chute through each guide groove, so that the clamping block and the clamping groove are locked or separated;

(5) By arranging the guide protrusion, on one hand, the clamping block can be ensured to be accurately matched and clamped with the clamping groove on the bottom surface of the locking block; on the other hand, in the process of clamping the clamping block and the clamping groove, the clamping block can be enabled to enter the first sliding groove upwards and smoothly through the third guide groove by pressing the ejector rod, so that the clamping block can be ensured to be effectively separated from the clamping groove;

(6) The lower part of the locking piece is provided with the inserting port communicated with the second guide groove, so that the connection of the lock catch between the first sliding groove and the locking piece can be easily realized, and the whole structure assembly process is more convenient;

(7) By adopting the emergency starting device, the small door of the fuel tank cap or the small door of the charging cap can be conveniently opened in a manual mode under emergency conditions, and the emergency starting device is convenient and quick.

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 an actuator for opening and closing a vehicle door according to the present disclosure;

FIG. 2 is an exploded schematic view of the disclosed automotive flap switch actuator;

FIG. 3 is a schematic view of the assembly structure of the push rod, the locking mechanism and the locking mechanism disclosed by the invention;

FIG. 4 is a schematic perspective view of a locking member according to the present invention;

FIG. 5 is a top view of the internal structure of the disclosed automotive flap switch actuator except for the upper housing;

FIG. 6 is a top view of the disclosed automotive flap switch actuator;

FIG. 7 is a plan cross-sectional view taken at A-A of FIG. 6;

FIG. 8 is a plan sectional view taken at B-B of FIG. 6;

FIG. 9 is a schematic diagram showing an assembled structure of a locking mechanism and a carrier rod according to the present invention;

FIG. 10 is a schematic view of an assembled structure of an emergency starting apparatus and an upper housing of the present invention;

FIG. 11 is a schematic view of an assembled structure of the emergency starting device and locking mechanism of the present disclosure;

FIG. 12 is an exploded schematic view of the emergency starter of the present disclosure;

FIG. 13 is a schematic view of a translating plate 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; 13. a guide protrusion; 3. a locking mechanism; 31. an elastic member; 32. locking; 33. a locking member; 331. a first chute; 332. a second chute; 333. a locking block; 4. a locking mechanism; 14. an upper housing; 15. a lower housing; 151. a positioning rod; 22. positioning holes; 34. a guide sleeve; 341. an annular groove; 321. a lock sleeve; 322. a clamping block; 152. an arc-shaped vertical plate; 3321. a first guide groove; 3322. a second guide groove; 3323. a third guide groove; 3331. a clamping groove; 334. a guide protrusion; 3341. a first guide surface; 3342. a second guide surface; 335. an insertion port; 23. a locking groove; 41. a motor; 42. a gear; 43. a rack; 431. a stopper; 5. an emergency starting device; 51. a translation plate; 52. a pulling member; 53. a tension spring; 140. a translation groove; 141. a moving hole; 432. a toggle part; 511. a pushing part; 142. a first connection portion; 512. and a second connecting part.

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 3, an embodiment of the present invention provides an actuator for opening and closing an automobile flap, which includes a housing 1, a jack 2, a locking mechanism 3, and a locking mechanism 4.

Wherein, casing 1 is used for fixed mounting in car oil filler point department, has installation cavity 10 in the casing 1 for install ejector pin 2, locking mechanism 3 and locking mechanism 4, set up on the casing 1 with the mounting hole 11 that installation cavity 10 is linked together for with the assembly in installation cavity 10 ejector pin 2 stretches out casing 1 outside through mounting hole 11.

The ejector rod 2 has one end located in the installation cavity 10 and the other end penetrating through the installation hole 11 and extending out of the housing 1 for connection with the filler cap hatch, and the ejector rod 2 can move up and down in the installation cavity 10, thereby realizing extension or retraction of the end of the ejector rod 2 located outside the housing 1. In this embodiment, the surface of the ejector rod 2 is provided with a spiral groove 21 along the axial direction thereof, and the inner wall of the housing 1 is provided with a guide protrusion 13 matched with the spiral groove 21, so that one end of the ejector rod 2 extending out of the housing 1 can linearly move in the installation cavity 10 when being pressed, meanwhile, the guide protrusion 13 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 match with the action of the locking mechanism 3, so that one end of the ejector rod 2 located outside the housing 1 is extended or retracted.

In this embodiment, when the push rod 2 is pressed by the small filler cap door, the push rod 2 is retracted in the installation cavity 10 and locked by the locking mechanism 3, the small filler cap door is closed, and when the push rod 2 is pressed by the small filler cap door again, one end of the push rod 2 located outside the shell 1 is extended, so that the small filler cap door is opened.

In order to realize that one end of the ejector rod 2 located outside the housing 1 extends or retracts, and simultaneously, in the switching process of the two states, the ejector rod 2 is locked in position in the installation cavity 10, and the preferred structural mode of the locking mechanism 3 which is matched with the ejector rod 2 is shown in the embodiment. Specifically, the locking mechanism 3 includes an elastic member 31, a lock catch 32, and a locking member 33.

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

The locking piece 33 is vertically arranged on one side of the ejector rod 2, the upper end of the locking piece 33 is rotationally connected with the inner wall of the installation cavity 10, a first sliding groove 331 is formed in the upper end of one surface of the locking piece 33 facing the ejector rod 2, a second sliding groove 332 communicated with the first sliding groove 331 is formed in the lower end of the first sliding groove 331, and a locking block 333 is arranged in the second sliding groove 332.

One end of the lock catch 32 is movably sleeved at the bottom end of the ejector rod 2 and can move up and down with the ejector rod 2, the ejector rod 2 can rotate relative to the lock catch 32, and in the process of the up and down movement of the ejector rod 2 under the stress, the other end of the lock catch 32 can slide in the first sliding groove 331 and the second sliding groove 332, so that the other end of the lock catch 32 is clamped with or separated from the locking block 333.

By adopting the technical scheme, under 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 other end of the lock catch 32 is in the second chute 332 and is in locking connection with the locking block 333, when the small door of the oil filler needs to be opened, downward pressure is applied to the ejector rod 2 by pressing the small door of the oil filler, the ejector rod 2 rotates while moving downwards in the installation cavity 10, and as one end of the lock catch 32 is movably sleeved at the bottom end of the ejector rod 2 and simultaneously the ejector rod 2 can rotate relative to the lock catch 32, the lock catch 32 can be driven to move downwards when the ejector rod 2 moves downwards, the other end of the lock catch 32 is separated from the locking block 333, under the action of the elastic piece 31, the ejector rod 2 moves upwards and drives the lock catch 32 to slide upwards from the first chute 331, and one end of the ejector rod 2 positioned outside the shell 1 is stretched, so that the small door of the oil filler is sprung.

Taking the small door of the oil filler cap as an example, 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 moves downward and drives the lock catch 32 to move from the first sliding groove 331 to the second sliding groove 332, the other end of the lock catch 32 slides into the second sliding groove 332 and then is connected with the locking block 333, and at the moment, the upward movement of the ejector rod 2 can be limited by the locking connection of the lock catch 32 and the locking block 333, so that the small door of the oil filler cap is closed at the oil filler port.

In order to avoid the situation that the oil port cover door is opened due to false touch, the embodiment is further provided with the locking mechanism 4, so that the ejector rod 2 is locked or unlocked in the installation cavity 10, when the oil port cover door is required to be sprung open, the locking mechanism 4 can release the limitation of position adjustment of the ejector rod 2 in the installation cavity 10, and at the moment, the ejector rod 2 can extend or retract under the cooperation of the locking mechanism 3, so that the oil port cover door is sprung open or closed. After the oiling is finished and the small door of the oil port cover is closed, the position adjusting function of the ejector rod 2 in the installation cavity 10 can be closed through the locking mechanism 4, and at the moment, the ejector rod 2 cannot extend or retract under the cooperation of the locking mechanism 3, so that the ejector rod 2 is always kept in a locking state with the locking block 333 in the installation cavity 10 and cannot be separated from the locking block 333, the small door of the oil port cover is prevented from being pressed by touching by mistake to be sprung, and the safety of an actuator is improved.

According to the automobile flap switch actuator disclosed by the invention, the ejector rod 2 and the locking mechanism 3 are matched with each other to realize the extension or retraction of the ejector rod 2 in the shell 1, and meanwhile, in the switching process of the two states, the ejector rod 2 is locked in the installation cavity 10, so that the small door of the oil filler cap is locked or unlocked, the small door of the oil filler cap can be prevented from being opened by touching by mistake through the arrangement of the locking mechanism 4, the whole actuator is simple in structure, fewer in parts, light in design and convenient to assemble.

In order to facilitate the installation of the ejector rod 2, the locking mechanism 3 and the locking mechanism 4 in the housing 1, referring to fig. 2 and fig. 6-8, in this embodiment, the housing 1 includes a lower housing 15 and an upper housing 14 connected to the lower housing 15, the upper housing 14 and the lower housing 15 may be connected by a bolt or a buckle, the installation hole 11 is disposed at the top of the upper housing 14, the inner top surface of the lower housing 15 is provided with a positioning rod 151, the axis of the bottom end of the ejector rod 2 is provided with a positioning hole 22 into which the positioning rod 151 is inserted, the elastic member 31 is located in the positioning hole 22, the upper end of the elastic member abuts against the top surface of the positioning hole 22, and the lower end abuts against the positioning rod 151.

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 14 and extends out of the upper shell 14, 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 14, the positioning rod 151 on the lower shell 15 is inserted into the positioning hole 22, so that the upper shell 14 and the lower shell 15 are connected, and the whole actuator is compact in assembly structure in the shell 1 and convenient to assemble.

Because ejector pin 2 is cylindricality structure, in order to make things convenient for hasp 32 and ejector pin 2 swing joint, ensure simultaneously that ejector pin 2 can rotate for hasp 32, the scheme that this embodiment adopted is that can dismantle at ejector pin 2 bottom periphery wall has uide bushing 34, uide bushing 34 periphery wall is provided with ring channel 341, and uide bushing 34 can carry out assembly connection through threaded connection mode and ejector pin 2, under the effect of uide bushing 34, ejector pin 2 can not deviate from in mounting hole 11 in the installation cavity 10.

In order to facilitate the movable connection between the lock catch 32 and the guide sleeve 34, the present embodiment shows a preferred structure of the lock catch 32, and referring to fig. 2 and 3, specifically, the lock catch 32 includes a lock sleeve 321 with a semicircular structure, the lock sleeve 321 is horizontally inserted into the annular groove 341 and can horizontally rotate relative to the annular groove 341, and a clamping block 322 is provided on the outer surface of the lock sleeve 321 and is clamped with the locking block 333.

Therefore, when the lock catch 32 and the guide sleeve 34 are assembled, the semicircular lock sleeve 321 can be horizontally inserted into the annular groove 341, the lock sleeve 321 can only rotate in the annular groove 341 but can not move in the axial direction of the guide sleeve 34 in the annular groove 341, when the ejector rod 2 is in linear rotation, the guide sleeve 34 drives the lock catch 32 to translate up and down, when the guide sleeve 34 rotates along with the ejector rod 2, the annular groove 341 and the lock sleeve 321 keep relative rotation, and in the process of moving the lock catch 32 up and down, the lock catch 32 is in the first sliding groove 331 or the second sliding groove 332, so that the large-angle rotation of the lock catch 32 relative to the guide sleeve 34 is limited, the lock catch 32 can only slightly horizontally rotate to adapt to sliding in the sliding groove, and the position of the lock catch 32 in the sliding groove is dynamically adjusted, so that the up-down sliding in the sliding groove is flexibly realized, and the locking of the lock catch 333 is realized.

In order to avoid the semicircular lock sleeve 321 from being separated from the annular groove 341, as shown in fig. 5, in this embodiment, two arc-shaped vertical plates 152 are vertically and fixedly arranged in the lower housing 15, the two arc-shaped vertical plates 152 are located at two sides of the clamping block 322, and the inner diameter of the enclosure body formed by the two arc-shaped vertical plates 152 is matched with the outer diameter of the lock sleeve 321. Therefore, the lock sleeve 321 can be enabled to slightly rotate between the enclosing bodies formed by the two arc-shaped vertical plates 152 all the time through the enclosing of the two arc-shaped vertical plates 152, the lock sleeve is prevented from falling out of the annular groove 341, in addition, the two arc-shaped vertical plates 152 can also play an axial positioning role, so that the lock catch 32 and the ejector rod 2 can keep coaxial movement, the clamping stagnation phenomenon in the process of matching sliding with the locking piece 33 in the up-and-down movement process is avoided, smooth movement of the lock catch 32 is ensured, and the locking or the separation with the locking piece 33 can be effectively and flexibly realized.

In order to enable the clamping block 322 on the lock catch 32 to be smoothly locked with or disengaged from the locking block 333 in the vertical sliding process of the first chute 331 and the second chute 332, the following technical scheme is adopted in this embodiment.

Referring to fig. 4, in this embodiment, the locking block 333 is configured as a triangle structure, the locking block 333 divides the second 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 positioned at two waist sides of the locking block 333, the second guiding groove 3322 is positioned at the bottom of the locking block 333, the upper ends of the first guiding groove 3321 and the third guiding groove 3323 are in intersection communication with the first chute 331, and the bottom surface of the locking block 333 is provided with a clamping groove 3331 which is clamped with the clamping block 322.

Therefore, when the filler cap door is in the closed state, the clamping block 322 is in the second guide groove 3322 and is connected with the clamping groove 3331 on the bottom surface of the locking block 333, at this time, the ejector rod 2 is in the compressed state, the ejector rod 2 has potential energy of moving upwards due to the upward elastic force of the elastic member 31, and the lock catch 32 is limited to move upwards due to the clamping block 322 in the clamping groove 3331 on the bottom surface of the locking block 333, so that the ejector rod 2 is in the compressed and position-locking state in the installation cavity 10.

When the small door of the filler cap needs to be opened, 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 move downwards, the clamping block 322 moves downwards in the second guide groove 3322 and is separated from the clamping groove 3331, 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 drive the lock catch 32 to move upwards, at the moment, the clamping block 322 enters the third guide groove 3323 from the second guide groove 3322 and then slides upwards into the first slide groove 331 from the third guide groove 3323, and at the moment, the ejector rod 2 extends completely to open the small door of the filler cap.

When the small door of the filler cap needs to be closed again, 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 move downwards, the clamping block 322 downwards enters the first guide groove 3321 from the first sliding groove 331 and enters the second guide groove 3322, after the ejector rod 2 releases the pressing force, the ejector rod 2 drives the lock catch 32 to move upwards under the action of the elastic piece 31, and at the moment, the clamping block 322 is clamped with the clamping groove 3331 on the bottom surface of the locking block 333.

Through setting up the locking piece 333 in the second spout 332 to cut apart into first guide slot 3321, second guide slot 3322 and third guide slot 3323 with the second spout 332, can realize hasp 32 and reciprocate the in-process, slide in above-mentioned guide slot, thereby realize with the draw-in groove 3331 joint locking of locking piece 333 bottom surface or break away from according to certain route, realize hasp 32 through with the cooperation of locking piece 33 accomplish the switching of ejector pin 2 in the installation cavity 10, smooth and orderly in the whole switching process, guaranteed the reliable locking or the opening of fuel tank cap.

As some preferred embodiments, the lower end opening of the first chute 331 faces the first guide groove 3321, so that when the clamping block 322 is in the first chute 331, the ejector rod 2 is in an extended state relative to the housing 1, when the ejector rod 2 is required to retract and keep the position locked, the ejector rod 2 drives the lock catch 32 to move downwards by applying a pressing force to the ejector rod 2, the clamping block 322 slides downwards from the first chute 331 and can smoothly enter the first guide groove 3321, the clamping block 322 slides along the side wall of the locking block 333 in the first guide groove 3321, during the sliding process, the locking piece 33 is driven to swing, and meanwhile, the lock catch 32 rotates relative to the guide sleeve 34 to adapt to the swing of the locking piece 33, and after the pressing force of the ejector rod 2 is released, the clamping block 322 can be clamped with the clamping groove 3331 on the bottom surface of the locking block 333. With the above arrangement, the movement of the engaging piece 322 along a predetermined path can be ensured, and the engaging piece 322 is guided to smoothly and effectively slide in the second chute 332 through each guiding slot, so as to lock or disengage the engaging piece 322 and the engaging slot 3331.

In order to enable the engaging piece 322 to be smoothly engaged with the engaging groove 3331 when sliding into the second guiding groove 3322, in this embodiment, a guiding protrusion 334 is provided on a bottom surface of the second guiding groove 3322, the guiding protrusion 334 has a first guiding surface 3341 and a second guiding surface 3342 connected to each other, the first guiding surface 3341 faces the first guiding groove 3321, a length direction of the first guiding surface 3341 corresponds to a middle portion of the engaging groove 3331, and the second guiding surface 3342 is inclined downward toward the third guiding groove 3323.

Therefore, after the clamping block 322 slides into the second guiding groove 3322 from the first guiding groove 3321, the clamping block 322 can be blocked by the first guiding surface 3341, after the pressing force of the ejector rod 2 is released, the ejector rod 2 moves upwards by elastic force, and the clamping block 322 can be smoothly driven to move upwards and clamped with the clamping groove 3331, so that the clamping block 322 can be accurately matched and clamped with the clamping groove 3331 at the bottom surface of the locking block 333.

When the clamping between the clamping block 322 and the clamping groove 3331 is to be released, the ejector rod 2 is pressed, the ejector rod 2 drives the lock catch 32 to move downwards, at this time, the clamping block 322 moves downwards to be separated from the clamping groove 3331, when the clamping block 322 touches the second guiding surface 3342, the clamping block slides along the second guiding surface 3342 towards the third guiding groove 3323, after the pressing force of the ejector rod 2 is released, the clamping block 322 can be enabled to enter into the first sliding groove 331 through the third guiding groove 3323 upwards smoothly, and the clamping block 322 can be ensured to be separated from the clamping groove 3331 effectively.

It should be noted that, the clamping groove 3331 of the present embodiment has an inverted V-shaped structure, so that the clamping block 322 can smoothly slide into the clamping groove 3331 when sliding along the side wall of the locking block 333 to the bottom surface of the locking block 333 in the first guiding groove 3321, and meanwhile, when the clamping block 322 needs to be separated from the clamping groove 3331, the clamping block 322 passes over the clamping groove 3331 in the downward moving process of the ejector rod 2, so that the clamping block 322 can smoothly enter into the third guiding groove 3323.

As some preferred embodiments, the third guide groove 3323 is located above one side of the locking block 333 facing the first guide groove 3321 at a position where it communicates with the first slide groove 331. With this arrangement, when the engaging piece 322 is disengaged from the engaging groove 3331 and enters the third guide groove 3323, it can smoothly enter the guide groove.

The locking member 33 has an insertion opening 335 at a lower portion thereof, which communicates with the second guide groove 3322, and the insertion opening 335 is used to allow the engagement block 322 to enter the second slide groove 332. Therefore, when the lock catch 32 is installed between the first sliding groove 331 and the locking piece 33, the clamping block 322 on the lock catch 32 slides upwards along the insertion opening 335 to enter the third guide groove 3323, connection of the lock catch 32 between the first sliding groove 331 and the locking piece 33 is easily achieved, and the whole structure is convenient to assemble.

In order to realize the position locking or unlocking of the ejector rod 2 in the installation cavity 10, referring to fig. 9, a preferred embodiment of the locking mechanism 4 is shown in this embodiment, specifically, the locking mechanism 4 includes a motor 41, a gear 42 and a rack 43, a locking groove 23 is provided on the surface of the ejector rod 2, the rack 43 is horizontally slidably provided on the inner top surface of the installation cavity 10, an output shaft of the motor 41 is connected with the gear 42, the gear 42 is in meshed connection with the rack 43, and a stop portion 431 for entering and exiting the locking groove 23 is provided at an end portion of the rack 43.

Therefore, when the small oil port cover door needs to be sprung, the motor 41 rotates to drive the gear 42 to rotate, the gear 42 drives the rack 43 to horizontally move, the stop part 431 on the rack 43 is separated from the locking groove 23, the limit on the position adjustment of the ejector rod 2 in the installation cavity 10 can be relieved, and at the moment, the ejector rod 2 can stretch out or retract under the cooperation of the locking mechanism 3, so that the small oil port cover door can be sprung or closed.

When the oiling is completed and the small door of the oil port cover is closed, the motor 41 rotates to drive the gear 42 to rotate, and the gear 42 drives the rack 43 to horizontally move, so that the stop part 431 at the end part of the rack 43 enters the locking groove 23 on the ejector rod 2. The ejector rod 2 is always kept in a locking state with the locking block 333 in the mounting cavity 10 and cannot be separated, so that the phenomenon that the small door of the oil port cover is pressed by touching by mistake to be sprung is avoided, and the safety of the actuator is improved.

As some other embodiments, when the motor fails or the whole vehicle fails and cannot start the motor, in order to open the small door of the fuel tank cap, the scheme adopted in this embodiment increases the emergency starting device 5 on the actuator, specifically, the emergency starting device 5 includes a translation plate 51, a pulling member 52 and a tension spring 53, a translation groove 140 is provided at the top of the upper housing 14, the translation plate 51 is horizontally slidably disposed in the translation groove 140, the sliding direction of the translation plate 51 is parallel to the translation direction of the rack 43, the pulling member 52 is fixedly disposed at one end of the translation plate 51, a moving hole 141 is provided on the upper housing 14, a pulling portion 432 extending out of the moving hole 141 is fixedly disposed at the upper end of the rack 43, a pushing portion 511 for pushing the pulling portion 432 to translate away from the locking groove 23 is disposed on the translation plate 51, a first connecting portion 142 is fixedly disposed on the upper housing 14, a second connecting portion 512 is fixedly disposed at one end of the bottom surface of the translation plate 51 facing the pulling member 52, and two ends of the tension spring 53 are respectively connected with the first connecting portion 142 and the second connecting portion 512.

By adopting the technical scheme, in the initial state, under the action of the tension spring 53, the translation plate 51 translates towards the locking groove direction in the translation groove 140 and is limited in the translation groove 140, meanwhile, the pushing part 511 on the translation plate 51 and the poking part 432 at the upper end of the rack 43 keep a certain interval, when the small oil tank door needs to be opened in an emergency, the translation plate 51 is pulled by the pulling piece 52 to translate towards the direction away from the locking groove 23, in the translation process, the pushing part 511 translates towards the poking part 432 and pushes the poking part 432 to translate towards the direction away from the locking groove 23, the poking part 432 drives the rack 43 to translate towards the direction away from the locking groove 23 in the translation process, so that the stop part on the rack 43 is separated from the locking groove 23, the unlocking of the position of the ejector rod 2 is realized, the small oil tank door is conveniently opened in a pressing mode, after the small oil tank door is opened, the translation plate 51 is immediately reset under the action of the tension spring 53, the pushing part 511 and the poking part 432 are separated, and the ejector rod 43 can be conveniently translated towards the locking groove 23 when the motor is electrified, and the position is conveniently locked.

The emergency starting device 5 is adopted in the embodiment, so that the small door of the fuel tank cap or the small door of the charging cap can be conveniently opened in an emergency by a manual mode, and the emergency starting device is convenient and quick.

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

1. An automotive flap switch 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 (13) matched with the spiral groove (21) is formed in the inner wall of the shell (1);

the locking mechanism (3) is positioned in the mounting cavity (10) and comprises an elastic piece (31), a lock catch (32) and a locking piece (33), wherein 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 arranged on one side of the ejector rod (2), the upper end of the locking piece (33) is rotationally connected with the inner wall of the mounting cavity (10), a first sliding groove (331) is formed in the upper end of one surface of the locking piece (33) facing the ejector rod (2), a second sliding groove (332) communicated with the first sliding groove (331) is formed in the lower end of the first sliding groove (331), a locking block (333) is arranged in the second sliding groove (332), one end of the lock catch (32) is movably sleeved at the bottom end of the ejector rod (2) and can move up and down with the ejector rod (2), the ejector rod (2) can rotate relative to the lock catch (32), and in the process of pressurized up-down movement of the ejector rod (2), the other end of the lock catch (32) can slide in the first sliding groove (331) and the second sliding groove (332) so that the other end of the lock catch (32) is blocked by the locking block (333).

And the locking mechanism (4) is positioned in the mounting cavity (10) and is used for locking or unlocking the ejector rod (2) in the mounting cavity (10).

2. The automotive door opening and closing actuator of claim 1 wherein: the shell (1) comprises a lower shell (15) and an upper shell (14) connected with the lower shell (15), the mounting hole (11) is formed in the top of the upper shell (14), a positioning rod (151) is arranged on the inner top surface of the lower shell (15), a positioning hole (22) for the positioning rod (151) to be inserted is formed in the bottom end axis of the ejector rod (2), the elastic piece (31) is located 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 (151).

3. The automotive door opening and closing actuator of claim 2 wherein: the guide sleeve (34) can be detached to ejector pin (2) bottom peripheral wall, and guide sleeve (34) peripheral wall is provided with ring channel (341), hasp (32) are including being semicircle ring structure's lock sleeve (321), and lock sleeve (321) level inserts in ring channel (341), and can be for ring channel (341) horizontal rotation, lock sleeve (321) surface have with latch block (322) of latch block (333) looks joint.

4. The vehicle door opening and closing actuator of claim 3, wherein: two arc-shaped vertical plates (152) are vertically and fixedly arranged in the lower shell (15), the two arc-shaped vertical plates (152) are positioned at two sides of the clamping block (322), and the inner diameter of a surrounding body formed by the two arc-shaped vertical plates (152) is matched with the outer diameter of the lock sleeve (321).

5. The vehicle door opening and closing actuator of claim 3, wherein: the locking block (333) is of a triangle structure, the second sliding groove (332) is divided into a first guiding groove (3321), a second guiding groove (3322) and a third guiding groove (3323) which are communicated sequentially by the locking block (333), the first guiding groove (3321) and the third guiding groove (3323) are respectively located at two waist sides of the locking block (333), the second guiding groove (3322) is located at the bottom of the locking block (333), the upper ends of the first guiding groove (3321) and the third guiding groove (3323) are communicated with the first sliding groove (331) in a crossing mode, and the bottom surface of the locking block (333) is provided with a clamping groove (3331) which is clamped with the clamping block (322).

6. The automotive door opening and closing actuator of claim 5 wherein: the lower end of the first sliding groove (331) is opened towards the first guide groove (3321), and the position where the third guide groove (3323) is communicated with the first sliding groove (331) is positioned above one side of the locking block (333) towards the first guide groove (3321).

7. The automotive door opening and closing actuator of claim 5 wherein: the bottom surface of the second guide groove (3322) is provided with a guide protrusion (334), the guide protrusion (334) is provided with a first guide surface (3341) and a second guide surface (3342) which are connected with each other, the first guide surface (3341) faces the first guide groove (3321), the length direction of the first guide surface (3341) corresponds to the middle part of the clamping groove (3331), and the second guide surface (3342) is inclined downwards towards the third guide groove (3323).

8. The automotive door opening and closing actuator of claim 5 wherein: the lower part of the locking piece (33) is provided with an inserting port (335) communicated with the second guide groove (3322), and the inserting port (335) is used for enabling the clamping block (322) to enter the second sliding groove (332).

9. The automotive door opening and closing actuator of claim 2 wherein: the locking mechanism (4) comprises a motor (41), a gear (42) and a rack (43), wherein a locking groove (23) is formed in the surface of the ejector rod (2), the rack (43) is horizontally arranged on the inner top surface of the mounting cavity (10) in a sliding mode, an output shaft of the motor (41) is connected with the gear (42), the gear (42) is meshed with the rack (43), and a stopping part (431) for entering and exiting the locking groove (23) is formed in the end portion of the rack (43).

10. The automotive door switch actuator of claim 9 wherein: still including emergent starting drive (5), emergent starting drive (5) include translation board (51), pull piece (52) and extension spring (53), it is provided with translation groove (140) to go up casing (14) top, translation board (51) horizontal slip sets up in translation groove (140), the slip direction of translation board (51) is parallel with the translation direction of rack (43), pull piece (52) fixed set up in the one end of translation board (51), be provided with on last casing (14) and remove hole (141), rack (43) upper end is fixed to be provided with and stretches out stirring portion (432) of removal hole (141), be provided with on translation board (51) and be used for promoting stirring portion (432) and keep away from the promotion portion (511) of locking groove direction translation, be provided with first connecting portion (142) on last casing (14), the one end of translation board (51) bottom surface orientation pull piece (52) is fixed and is provided with second connecting portion (512), and the both ends of extension spring (53) are connected with first connecting portion (142) and second connecting portion (512) respectively.