A filler cap actuator

Abstract

The utility model discloses an oil tank cover executor belongs to the technical field of automobile parts, which comprises a push rod assembly, a stopper and a mounting seat. The push rod assembly comprises a top rod, a sliding assembly and a spring sheet. The mounting seat comprises a sliding rail, a stopper mounting port and a top rod through hole. The surface of the top rod is provided with a helical groove along its axial direction, and the inner wall of the top rod through hole is provided with a guide key matched with the helical groove. One end of the sliding assembly is connected with the top rod, and the other end is connected with one end of the spring sheet. The other end of the spring sheet is provided with a stop key, and the sliding assembly is slidingly connected with the sliding rail. The stop key is slidingly connected with the stopper to realize the sliding or static state of the top rod. Through the double limiting of the sliding rail and the top rod through hole, the helical groove and the guide key are matched to make the top rod slide smoothly, avoid shaking and deviation, and eliminate dislocation. By adding the spring sheet, elastic support is provided, external force is buffered, the overall operation stability and reliability of the oil tank cover executor are significantly improved, and the operation and maintenance frequency is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology, specifically relating to a fuel tank cap actuator. Background Technology

[0002] The fuel tank cap actuator is a key component installed on a car's fuel tank cap to automatically open and close it. The push rod in the actuator is its main moving part; one end is located inside the actuator's housing, and the other end extends outside. It can rotate and move axially, cooperating with a locking pin to open and close the fuel tank cap. However, in most fuel tank cap actuators currently on the market, the push rod's limiting mechanism relies primarily on a guide sleeve fitted around a small portion of the push rod's periphery. Under normal driving conditions, this limiting structure ensures stable operation of the fuel tank cap actuator; however, under prolonged conditions of bumpy driving, this limiting structure results in poor stability of the push rod's movement. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a fuel tank cover actuator with high stability that is not easily affected by vibration.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: an oil tank cap actuator, including a push rod assembly, a stop member, and a mounting base; the push rod assembly includes a push rod, a sliding assembly, and a spring; the mounting base includes a slide rail, a stop member mounting port disposed below the slide rail, and a push rod through hole; the surface of the push rod is provided with a spiral groove along its axial direction, and the inner wall of the push rod through hole is provided with a guide key adapted to the spiral groove; one end of the sliding assembly is connected to the push rod and the other end is connected to one end of the spring, and the other end of the spring is provided with a stop key; the sliding assembly is slidably connected to the slide rail; the stop key is slidably connected to the stop member to realize the sliding or stationary movement of the push rod.

[0005] Furthermore, one end of the push rod is provided with a blind hole, and an elastic component is provided in the blind hole. The elastic component is used to provide a force for the push rod to move upward.

[0006] Furthermore, it also includes a base plate, on which a positioning post is provided. The positioning post is inserted into a blind hole. One end of the elastic element abuts against a fixed position, and the other end abuts against the bottom surface of the blind hole.

[0007] Furthermore, the stop member is disposed in the stop member mounting opening and is rotatably connected to the mounting base.

[0008] Furthermore, the stop member includes a connecting part and a rotating part arranged sequentially from top to bottom. The connecting part is cylindrical, and the width of the rotating part gradually decreases from top to bottom.

[0009] Furthermore, the connection between the rotating part and the connecting part has a shoulder that gradually slopes downward from the connection, and the shoulder has an arc.

[0010] Furthermore, the stop member has a first groove, a second groove, and a third groove forming a Y shape on the side facing the spring piece. The first groove, the second groove, and the third groove are provided with a stop block at their confluence. The stop block is in the shape of an inverted V.

[0011] Furthermore, it also includes a locking mechanism, which comprises a worm gear motor, a locking gear, and a proximity switch; the worm gear motor meshes with the locking gear; the proximity switch is used to detect whether the push rod of the fuel tank cap actuator has retracted into place; the locking gear is used to lock or release the movement of the push rod.

[0012] Furthermore, the locking gear includes an incomplete gear and a locking key connected to each other, the locking key being located at a position where the incomplete gear has no teeth; the push rod has a locking groove, one end of the locking groove being open and the other end being closed, the locking groove being used to accommodate the locking key.

[0013] Furthermore, the proximity switch includes a reed switch and a magnet; the magnet is connected to the push rod.

[0014] The beneficial effects of this utility model are as follows: The fuel tank cap actuator provided by this utility model, through the dual limiting of the slide rail and the through hole of the top rod, combined with the spiral groove and guide key, enables the top rod to slide smoothly, avoiding shaking and deviation, eliminating dislocation, and significantly improving operational stability and reliability. Furthermore, by adding a spring plate and placing the stop key on the spring plate, elastic support is provided to buffer external forces, preventing damage to the top rod or malfunction, further improving the overall stability of the fuel tank cap actuator and reducing maintenance frequency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the mounting base according to a specific embodiment of the present utility model;

[0016] Figure 2 This is a front view of the mounting base according to a specific embodiment of the present utility model;

[0017] Figure 3 This is a top view of the mounting base according to a specific embodiment of the present utility model;

[0018] Figure 4 This is a front view of the stop member according to a specific embodiment of the present utility model;

[0019] Figure 5 This is a rear view of the stop member according to a specific embodiment of the present utility model;

[0020] Figure 6This is a schematic diagram of the stop member according to a specific embodiment of the present utility model;

[0021] Figure 7 This is a partial structural schematic diagram of a specific embodiment of the present utility model;

[0022] Figure 8 for Figure 7 Top view;

[0023] Figure 9 for Figure 7 A structural diagram from another angle;

[0024] Figure 10 This is a schematic diagram of the sliding component, spring, and stop key according to a specific embodiment of the present utility model.

[0025] Figure 11 This is a schematic diagram of the structure of the stop member, sliding component, spring piece and stop key in a specific embodiment of the present utility model.

[0026] Figure 12 This is a schematic diagram of the top rod according to a specific embodiment of the present utility model;

[0027] Label Explanation:

[0028] 1. Push rod assembly; 101. Push rod; 1011. Helical groove; 1012. Locking groove; 102. Sliding assembly; 103. Spring piece; 104. Stop key; 105. Elastic assembly;

[0029] 2. Stop component; 201. Connecting part; 202. Rotating part; 2021. Shoulder; 203. First slide groove; 204. Second slide groove; 205. Third slide groove; 206. Stop block; 207. Guide groove;

[0030] 3. Mounting base; 301. Slide rail; 302. Stop mounting port; 303. Top rod through hole; 3031. Guide key;

[0031] 4. Base plate; 401. Positioning post;

[0032] 501. Worm gear motor; 502. Locking gear; 5021. Incomplete gear; 5022. Locking key; 503. Reed switch; 504. Magnet.

[0033] 6. Outer shell. Detailed Implementation

[0034] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0035] Please refer to Figures 1-12A fuel tank cap actuator includes a push rod assembly, a stop member, and a mounting base;

[0036] The push rod assembly includes a push rod, a sliding assembly, and a spring; the mounting base includes a slide rail, a stop mounting port located below the slide rail, and a push rod through hole;

[0037] The surface of the push rod is provided with a spiral groove along its axial direction, and the inner wall of the push rod through hole is provided with a guide key that matches the spiral groove;

[0038] One end of the sliding component is connected to the push rod, and the other end is connected to one end of the spring piece. The other end of the spring piece is equipped with a stop key. The sliding component is slidably connected to the slide rail. The stop key is slidably connected to the stop piece to realize the sliding or stationary movement of the push rod.

[0039] As described above, the beneficial effects of this utility model are as follows: The dual limiting mechanism of the slide rail and the through-hole of the push rod achieves the limiting of the push rod during movement. Combined with the spiral groove and guide key, the push rod can slide smoothly along the guide key within the spiral groove during movement, effectively preventing wobbling or deviation during movement. Furthermore, it ensures that the push rod will not disengage under any circumstances, improving the stability and reliability of the push rod's operation. The movement of the push rod drives the spring plate, which in turn drives the stop key to slide along the stop member. When it reaches the locked position, the stop key locks with the stop member, and the push rod retracts. Unlike current fuel tank cap actuators, whose stop keys are usually directly mounted on the sliding assembly, this utility model adds a spring plate with a stop key on it. The spring plate provides a certain degree of elastic support, allowing the push rod to be cushioned when subjected to external forces, preventing damage or malfunction due to excessive external force.

[0040] In one or more embodiments, the spring is made of metal. It not only provides cushioning but also exhibits good wear resistance.

[0041] In one or more embodiments, one end of the push rod is provided with a blind hole, and an elastic component is provided in the blind hole. The elastic component is used to provide a force for the push rod to move upward. When the push rod retracts downward to the locked position, the elastic component is compressed. When the push rod is released from the locked position, the elastic component pushes the push rod upward.

[0042] In one or more embodiments, a base plate is further included, on which a positioning post is provided. The positioning post is inserted into a blind hole, and one end of the elastic element abuts against a positioning position, while the other end abuts against the bottom surface of the blind hole. A mounting base is disposed on the base plate. The positioning post is used to position the push rod and the elastic component.

[0043] In one or more embodiments, the stop member is disposed in the stop member mounting port and is rotatably connected to the mounting base.

[0044] In one or more embodiments, the stop member includes a connecting part and a rotating part arranged sequentially from top to bottom. The connecting part is cylindrical, and the width of the rotating part gradually decreases from top to bottom.

[0045] In one or more embodiments, the connection between the rotating part and the connecting part has a shoulder that gradually slopes downward from the connection point, and the shoulder has a curvature. The outline of the shoulder is a gradually downward sloping arc, resembling a teardrop or spindle shape.

[0046] In one or more embodiments, the stop member has a first groove, a second groove, and a third groove forming a Y shape on the side facing the spring piece, and a stop block is provided at the confluence of the first groove, the second groove, and the third groove, the stop block being in the shape of an inverted V.

[0047] In one or more embodiments, the stop member further includes a guide groove, and a first slide groove, a second slide groove, a guide groove, and a third slide groove are connected in sequence. The guide groove is an inverted V-shape that is aligned with the direction of the stop block.

[0048] In one or more embodiments, the stop member is made of metal or wear-resistant plastic, which can effectively improve its wear resistance.

[0049] In one or more embodiments, a locking mechanism is further included, which includes a worm gear motor, a locking gear, and a proximity switch; the worm gear motor meshes with the locking gear; the proximity switch is used to detect whether the push rod of the fuel tank cap actuator has retracted into place; and the locking gear is used to lock or release the movement of the push rod.

[0050] In one or more embodiments, the locking gear includes an incomplete gear and a locking key connected to each other, the locking key being disposed at a position where the incomplete gear has no teeth; the push rod has a locking groove, one end of the locking groove being open and the other end being closed, the locking groove being used to accommodate the locking key.

[0051] In one or more embodiments, the proximity switch includes a reed switch and a magnet; the magnet is connected to a push rod.

[0052] As described above, when the push rod moves upward, the magnet moves synchronously, moving away from the reed switch. When it moves down to the locked position, it responds to the reed switch, causing the worm gear motor to rotate, which in turn drives the incomplete gear to rotate, thus moving the locking key into the locking groove, achieving locking. The reed switch has a fast response speed, enabling rapid detection of changes in the push rod's position and ensuring accurate locking and unlocking of the fuel tank cap. Furthermore, the combination of the reed switch and the magnet allows for installation without increasing the overall size of the fuel tank cap actuator.

[0053] Embodiment 1 of this utility model is as follows:

[0054] An actuator for a fuel tank cap includes a push rod assembly 1, a stop member 3, a mounting base 4, a base plate 4, and a locking mechanism;

[0055] The push rod assembly 1 includes a push rod 101, a sliding assembly 102, and a spring piece 103; the mounting base 3 includes a slide rail 301, a stop member mounting port 302 located below the slide rail 301, and a push rod through hole 303.

[0056] The surface of the push rod 101 is provided with a spiral groove 1011 along its axial direction, and the inner wall of the through hole of the push rod 101 is provided with a guide key 3031 that is adapted to the spiral groove 1011; one end of the push rod 101 is provided with a blind hole, and an elastic component 105 is provided in the blind hole.

[0057] One end of the sliding component 102 is connected to the push rod 101 and the other end is connected to one end of the spring piece 103. The other end of the spring piece 103 is provided with a stop key 104. The sliding component 102 is slidably connected to the slide rail 301. The stop key 104 is slidably connected to the stop member 2 to realize the sliding or stationary movement of the push rod 101.

[0058] The base plate 4 is provided with a positioning post 401. The positioning post 401 is inserted into the blind hole. One end of the elastic component 105 abuts against the positioning position, and the other end abuts against the bottom surface of the blind hole.

[0059] Shrapnel 103 is made of metal;

[0060] The stop member 2 is disposed in the stop member mounting port 302 and is rotatably connected to the mounting base 3; the stop member 2 includes a connecting part 201 and a rotating part 202 arranged sequentially from top to bottom. The connecting part 201 is cylindrical, and the width of the rotating part 202 gradually decreases from top to bottom; the connection between the rotating part 202 and the connecting part 201 has a shoulder 2021 that gradually slopes downward from the connection. The shoulder 2021 has an arc, and the outline of the shoulder 2021 is a gradually downward sloping arc. The rotating part 202 has a structure similar to a teardrop or a spindle.

[0061] The stop member 2 has a first groove 203, a second groove 204, and a third groove 205 forming a Y shape on the side facing the spring piece 103. A stop block 206 is provided at the confluence of the first groove 203, the second groove 204, and the third groove 205. The stop block 206 is in the shape of an inverted V. The stop member 2 also includes a guide groove 207. The first groove 203, the second groove 204, the guide groove 207, and the third groove 205 are connected in sequence. The guide groove 207 is in the shape of an inverted V with the same direction as the stop block 206.

[0062] The stop part 2 is made of metal;

[0063] The locking mechanism includes a worm gear motor 504, a locking gear 502, and a proximity switch; the locking gear 502 includes an incomplete gear 5021 and a locking key 5022 connected to each other, and the locking key 5022 is located at the position where the incomplete gear 5021 has no teeth; the push rod 101 has a locking groove 1012, with one end open and the other closed, and the locking groove 1012 is used to accommodate the locking key 5022; the proximity switch includes a reed switch 503 and a magnet 504; the magnet 504 is connected to the push rod 101.

[0064] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A fuel tank cap actuator, characterized in that, The device includes a push rod assembly, a stop component, and a mounting base. The push rod assembly includes a push rod, a sliding assembly, and a spring. The mounting base includes a slide rail, a stop component mounting port located below the slide rail, and a push rod through hole. The surface of the push rod has a helical groove along its axial direction, and the inner wall of the push rod through hole has a guide key adapted to the helical groove. One end of the sliding assembly is connected to the push rod, and the other end is connected to one end of the spring. The other end of the spring has a stop key. The sliding assembly is slidably connected to the slide rail. The stop key is slidably connected to the stop component to achieve sliding or stationary movement of the push rod.

2. The fuel tank cover actuator according to claim 1, characterized in that, One end of the push rod is provided with a blind hole, and an elastic component is provided in the blind hole. The elastic component is used to provide a force for the push rod to move upward.

3. The fuel tank cover actuator according to claim 2, characterized in that, It also includes a base plate, on which a positioning post is provided. The positioning post is inserted into a blind hole. One end of the elastic component abuts against a fixed position, and the other end abuts against the bottom surface of the blind hole.

4. The fuel tank cover actuator according to claim 1, characterized in that, The stop element is disposed in the stop element mounting port and is rotatably connected to the mounting base.

5. The fuel tank cover actuator according to claim 4, characterized in that, The stop member includes a connecting part and a rotating part arranged sequentially from top to bottom. The connecting part is cylindrical, and the width of the rotating part gradually decreases from top to bottom.

6. The fuel tank cover actuator according to claim 5, characterized in that, The connection between the rotating part and the connecting part has a shoulder that gradually slopes downward from the connection point, and the shoulder has an arc.

7. The fuel tank cap actuator according to claim 4, wherein the stop member has a first slide groove, a second slide groove and a third slide groove forming a Y shape on the side facing the spring piece, and a stop block is provided at the confluence of the first slide groove, the second slide groove and the third slide groove, and the stop block is in the shape of an inverted V.

8. The fuel tank cover actuator according to claim 1, characterized in that, It also includes a locking mechanism, which comprises a worm gear motor, a locking gear, and a proximity switch; the worm gear motor meshes with the locking gear; the proximity switch is used to detect whether the push rod of the fuel tank cap actuator has retracted into place; the locking gear is used to lock or release the movement of the push rod.

9. The fuel tank cover actuator according to claim 8, characterized in that, The locking gear includes an incomplete gear and a locking key connected to each other. The locking key is located at the position where the incomplete gear has no teeth. The push rod has a locking groove, which is open at one end and closed at the other end. The locking groove is used to accommodate the locking key.

10. The fuel tank cover actuator according to claim 8, characterized in that, The proximity switch includes a reed switch and a magnet; the magnet is connected to the push rod.

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