Actuator for a charging or fuel tank cap

Abstract

Actuator for a loading or fuel tank cap, comprising: a mounting base (1) provided with an axially movable lifting shaft (1) and a circumferentially rotatable rotary seat (3), wherein the lifting shaft (2) has a first position state in which the lifting shaft is connected to a cover body in its upward movement, wherein the lifting shaft (2) has a second position state in which the lifting shaft is separated from the cover body in its downward movement; wherein the rotary seat (3) is provided with a limiting section (3.1), wherein in the second position state of the lifting shaft (2) the rotary seat (3) is rotated so far that the limiting section (3.1) cooperates with a positioning section (2.1) on the lifting shaft (2) in order to position the lifting shaft (2) and prevent the lifting shaft (2) from being lifted; wherein the rotary seat (3) is provided with a fitting groove (3.2), wherein the mounting base (1) is further provided with a positioning pin (4) which can move back and forth in an arc, wherein the rotary seat (3) is rotated such that the limiting section (3.1) cooperates with the positioning section (2.1), wherein the fitting groove (3.2) is rotated together with the rotary seat (3) into a position such that the positioning pin (4) can move in or out; wherein the positioning pin (4) is inserted into the fitting groove (3.2) to position the bracket in the circumferential direction.

Description

Technical field

[0001] The present utility model relates to the technical field of vehicle parts, more specifically to an actuator for a loading or fuel tank cap. State of the art

[0002] In a fuel vehicle, a fuel inlet is provided for supplying fuel or oil. In an electric vehicle, a charging inlet is provided for supplying electricity. The fuel inlet or charging inlet is generally provided with a movable door cover, one end of which is hingedly connected and the other end of which is movably connected to a locking device, so that the door cover can be opened or closed after being separated from the locking device. After the door cover is closed, the locking device is connected to the door cover, so that the cover body is held in a closed state.

[0003] For a current locking device, reference is made to document CN 219471812 U, which relates to a tank or cargo port door lock that uses a threaded lifting shaft to raise and lower the lifting shaft to connect or separate the head of the lifting shaft and the door cover. When the door cover is opened or closed, a motor is required to drive the lifting shaft to raise and lower. This is structurally more complex and prone to failure, and reliability and durability may not meet requirements. Detailed description of the utility model

[0004] To overcome the shortcomings and deficiencies in the prior art, an actuator for a charging or fuel tank cap with a simple structure, high reliability and long service life is provided.

[0005] According to the main claim, an actuator for a loading or fuel tank cap is disclosed, comprising: a mounting base provided with an axially movable lifting shaft and a circumferentially rotatable rotary seat, wherein the lifting shaft has a first position state in which the lifting shaft is connected to a cover body in its upward movement, and wherein the lifting shaft has a second position state in which the lifting shaft is separated from the cover body in its downward movement.

[0006] The rotary seat is provided with a limiting portion. In the second position state of the lifting shaft, the rotary seat is rotated so far that the limiting portion cooperates with a positioning portion on the lifting shaft to position the lifting shaft and prevent the lifting shaft from being lifted.

[0007] The swivel seat is provided with a locating groove. The mounting base is also provided with a positioning pin that can move back and forth in an arc. The swivel seat is rotated so that the limiting section interacts with the positioning section. The locating groove, together with the swivel seat, is rotated to a position that allows the positioning pin to retract or extend.

[0008] The positioning pin is inserted into the fitting groove to position the bracket circumferentially.

[0009] With the above structure, the actuator for a cargo or fuel cap according to the present utility model has the following advantages compared with the prior art: When the lifting shaft is in the second position state, it is separated from the cover body, and the rotary seat can be rotated until the restricting portion cooperates with the positioning portion to prevent movement of the lifting shaft resulting in departure from this state and to operate the device reliably;

[0010] A positioning pin that can reciprocate in an arc is provided. After the rotary seat is rotated to the extent that the limiting portion engages with the positioning portion, the fitting groove on the rotary seat is moved to a position where the positioning pin can retract and extend. At this time, the positioning pin is moved in an arc into the fitting groove so that the rotary seat can be circumferentially restricted, preventing rotation of the rotary seat and thus stably placing the rotary seat in the state where the limiting portion engages with the positioning portion, thereby allowing the lifting shaft to be stable in the second position state and improving the operational reliability of the device. The present utility model also features simple structure, high reliability, and long service life.

[0011] As an improvement of the utility model, the fitting groove is arranged on the peripheral side of the rotary seat, the positioning pin is arranged above the fitting groove, the rotary seat can be rotated until the inlet and the outlet of the fitting groove are opposite the positioning pin.

[0012] As an improvement of the utility model, the mounting base is equipped with a motor. A gearwheel is rotatably connected to the mounting base, which is driven to rotate by the motor.

[0013] The positioning pin is attached to the gear.

[0014] As an improvement of the utility model, the mounting base is further provided with a guide shaft which penetrates into the inner bore of the lifting shaft;

[0015] The guide shaft is provided with a fitting block on the outside, wherein an axially extending spiral groove is arranged on an inner bore wall of the lifting shaft, wherein the fitting block is connected to the spiral groove in an adapted manner.

[0016] As an improvement of the utility model, an elastic element is located adjacent between the lifting shaft and the guide shaft.

[0017] As an improvement of the utility model, the rotary seat is fitted on the outer side of the lifting shaft, and the positioning portion is a key body protruding from the outer wall of the lifting shaft;

[0018] The inner bore of the rotary seat is provided with a protrusion, and the limiting portion is formed as a positioning groove located at the bottom of the protrusion. The side wall of the positioning groove is formed as a left-low-right-high adjustment. The lifting shaft is lowered to the extent that the height of the wrench body is lower than the right side wall of the positioning groove. The rotary seat is rotated counterclockwise so that the wrench body enters the positioning groove to limit the rise of the lifting shaft.

[0019] As an improvement of the utility model, a first stopper is arranged on the right side of the projection and a second stopper is arranged on the left side of the projection, a vertical first transmission groove is formed between the first stopper and the projection, and a vertical second transmission groove is formed between the second stopper and the projection;

[0020] The swivel seat is provided with a torsion spring, one end of which is connected to the mounting surface and the other end to the swivel seat;

[0021] In the first position state of the lifting shaft, the key body is positioned above the projection. The lifting shaft descends, and the spiral groove cooperates with the fitting block to rotate the lifting shaft clockwise. The key body enters the first transmission groove below the right wall of the positioning groove. As the key body passes through the first transmission groove, the rotary seat is driven to rotate clockwise under the bias of the torsion spring. When the height of the key body is lower than the right side wall of the positioning groove, the torsion spring drives the rotary seat to rotate counterclockwise, so that the left side wall of the positioning groove is pressed against the key body.In the second position state of the lifting shaft, the lifting shaft descends until the height of the key body is lower than the left side wall of the positioning groove, the torsion spring returns to the initial state and further drives the rotary seat to rotate counterclockwise, so that the key body rotates to the second transmission groove and the lifting shaft can rise along the second transmission groove. Short description of the characters Fig. 1: a structural representation of the lifting shaft in a first position state in the present utility model. Fig. 2: a structural representation of an inner part from the Fig. 1 in the present utility model. Fig. 3: a structural representation of the lifting shaft in a second position state in the present working model. Fig. 4: an enlarged structural representation of a site A from the Fig. 3 in the present utility model. Fig. 5: a structural representation of parts in the explosive state in the present usage pattern. Fig. 6: a structural representation of a swivel seat in the present utility model. Fig. 7: a structural sectional view of the lifting shaft in a first position state in the present utility model. Fig. 8: a structural sectional view of the lifting shaft in a second position state in the present utility model. Detailed description of the embodiments

[0022] In the following, the present utility model is explained in more detail using the figures and the exemplary embodiments.

[0023] It will be on the Fig.1 to 8, an actuator for a loading or fuel tank cap comprises a mounting base 1 provided with an axially movable lifting shaft 2 and a circumferentially rotatable rotary seat 3, wherein the lifting shaft 2 has a first position state in which the lifting shaft is connected to the cover body in its upward movement, and wherein the lifting shaft 2 has a second position state in which the lifting shaft is separated from the cover body in its downward movement;

[0024] The rotating seat 3 is provided with a limiting portion 3.1. In the second position state of the lifting shaft 2, the rotating seat 3 is rotated so far that the limiting portion 3.1 cooperates with the positioning portion 2.1 on the lifting shaft 2 to position the lifting shaft 2 and prevent the lifting shaft 2 from being lifted;

[0025] The rotating seat 3 is provided with a fitting groove 3.2. The mounting base 1 is also provided with a positioning pin 4 that can move back and forth in an arc. The rotating seat 3 is rotated so that the limiting section 3.1 interacts with the positioning section 2.1. The fitting groove 3.2 is rotated together with the rotating seat 3 to a position that allows the positioning pin 4 to retract or extend.

[0026] The positioning pin 4 is inserted into the fitting groove 3.2 to position the bracket in the circumferential direction.

[0027] When the lifting shaft 2 is in the second position state, it is separated from the cover body, and the rotary seat 3 can be rotated until the limiting portion 3.1 engages with the positioning portion 2.1 to prevent movement of the lifting shaft 2 resulting in departure from this state and to operate the device reliably;

[0028] A positioning pin 4 that can reciprocate in an arc is provided. After the rotary seat 3 is rotated to the extent that the restriction portion 3.1 engages with the positioning portion 2.1, the fitting groove 3.2 on the rotary seat 3 is moved to a position where the positioning pin 4 can retract and extend. At this time, the positioning pin 4 is moved in an arc into the fitting groove 3.2 so that the rotary seat 3 can be circumferentially restricted, so that rotation of the rotary seat 3 can be prevented and thus the rotary seat 3 can be stably placed in the state in which the restriction portion 3.1 engages with the positioning portion 2.1, whereby the lifting shaft 2 can be stably in the second position state and the operational reliability of the device is improved.

[0029] As an improvement of the utility model, the fitting groove 3.2 is arranged on the peripheral side of the rotary seat 3, and the positioning pin 4 is arranged above the fitting groove 3.2, and the rotary seat 3 can be rotated until the inlet and outlet of the fitting groove 3.2 are opposite the positioning pin 4. According to the above improvement, it is characterized by a reasonable arrangement and easy manufacturing.

[0030] As an improvement of the utility model, the mounting base 1 is provided with a motor 5. A gear 5.2 is rotatably connected to the mounting base 1 and is driven to rotate by the motor 5;

[0031] The positioning pin 4 is attached to the gear 5.2. The gear 5.2 adopts an incomplete gear 5.2 on which the positioning pin 4 is provided. The incomplete gear 5.2 is rotatably connected to the mounting base 1 by means of a pin. The output of the motor 5 is provided with a coaxial output gear 5.2, which is meshed with the incomplete gear 5.1. When the lifting shaft 2 retracts to the second position state, the motor 5 receives a drive signal, which in turn drives the output gear 5.1 to rotate, causing the incomplete gear 5.2 to rotate in the forward direction, so that the positioning pin 4 moves along the arcuate movement track and enters the fitting groove 3.2, thereby enabling circumferential limitation of the rotary seat 3.

[0032] When it is necessary to lift the lifting shaft 2, the motor 5 drives the output gear 5.25.1 to rotate, which in turn drives the incomplete gear 5.2 to rotate in the opposite direction, so that the positioning pin 4 moves along the arcuate path of movement and extends out of the fitting groove 3.2, whereby the rotary seat 3 loses its circumferential limitation.

[0033] The motor 5 controls the arc movement of the positioning pin 4 via a transmission mechanism with the gear 5.2, which is characterized by stable and reliable operation and a high degree of automation.

[0034] As an improvement of the utility model, the mounting base 1 is further provided with a guide shaft 6 which penetrates into the inner bore of the lifting shaft 2;

[0035] The guide shaft 6 is provided on the outside with a fitting block 6.1, wherein an axially extending spiral groove is arranged on an inner bore wall of the lifting shaft 2, wherein the fitting block 6.1 is connected to the spiral groove 2.2 in an adapted manner.

[0036] With the above-mentioned improvements, the lifting shaft 2 is mounted on the outside of the guide shaft 6. The fitting block 6.1 on the guide shaft 6, when fitted into the spiral groove 2.2 on the lifting shaft 2, guides the lifting shaft 2 such that it undergoes circumferential rotation during the axial movement.

[0037] An improvement of the utility model consists in the fact that an elastic element 7 is located between the lifting shaft 2 and the guide shaft 6. The elastic element 7 consists of a spring, one end of which is arranged in the inner bore of the guide shaft 6 and pressed against the guide shaft 6, and the other end of which is arranged in the inner bore of the lifting shaft 2 and pressed against the lifting shaft 2. The preloading effect of the spring causes the lifting shaft 2 to always have a tendency to move upwards.

[0038] After the rotary seat 3 has been rotated in the circumferential direction so far that the positioning section 2.1 is separated from the limiting section 3.1, the lifting shaft 2 can automatically lift under the action of the spring and move to the first position state.

[0039] An improvement of the utility model consists in that the rotary seat 3 is placed on the outside of the lifting shaft 2 and the positioning section 2.1 is a key body protruding from the outer wall of the lifting shaft 2;

[0040] The inner bore of the rotary seat 3 is provided with a protrusion, and the limiting portion 3.1 is formed as a positioning groove located at the bottom of the protrusion. The side wall of the positioning groove is formed as a left-low-right-high adjustment. The lifting shaft 2 is lowered to the extent that the height of the wrench body is lower than the right side wall of the positioning groove. The rotary seat 3 is rotated counterclockwise so that the wrench body enters the positioning groove to limit the rise of the lifting shaft 2.

[0041] After the wrench body is engaged in the positioning groove, the upper end surface of the wrench body is pressed against the wall surface of the positioning groove, which can limit the rise of the lifting shaft 2 and has the characteristic of stable and reliable cooperation.

[0042] As an improvement of the utility model, a first stopper 8 is arranged on the right side of the projection and a second stopper 9 is arranged on the left side of the projection 9, a vertical first transmission groove 8.1 is formed between the first stopper 8 and the projection, and a vertical second transmission groove 9.1 is formed between the second stopper 9 and the projection;

[0043] The rotating seat 3 is provided with a torsion spring 10, one end of which is connected to the mounting base 1 and the other end of which is connected to the rotating seat 3;

[0044] In the first position state of the lifting shaft 2, the key body is positioned above the projection. The lifting shaft 2 descends, and the spiral groove 2.2 cooperates with the fitting block 6.1 to rotate the lifting shaft 2 clockwise. The key body enters the first transmission groove 8.1 below the right wall of the positioning groove. As the key body passes through the first transmission groove 8.1, the rotary seat 3 is driven to rotate clockwise under the preload of the torsion spring. When the height of the key body is lower than the right side wall of the positioning groove, the torsion spring drives the rotary seat 3 to rotate counterclockwise, so that the left side wall of the positioning groove is pressed against the key body.In the second position state of the lifting shaft 2, the lifting shaft 2 lowers until the height of the key body is lower than the left side wall of the positioning groove, the torsion spring returns to the initial state and further drives the rotary seat 3 to rotate counterclockwise, so that the key body rotates to the second transmission groove 9.1 and the lifting shaft 2 can rise along the second transmission groove 9.1.

[0045] Working principle: The head of the lifting shaft 2 is provided with a locking buckle 2.3, and the cover body is provided with a groove opening that has the same shape as the locking buckle 2.3. When the lifting shaft 2 is at a certain angle, the locking buckle 2.3 can be adjusted to the groove opening and then pass through the groove opening;

[0046] In the closed state of the cover body, the lifting shaft 2 is in the first position state during upward lifting. At this time, the locking pin 2.3 is guided through the groove opening, and in cooperation with the pawl block 6.1 and the spiral groove 2.2, the lifting shaft 2 is driven to rotate counterclockwise by the preset angle, with the locking pin 2.3 and the groove opening acting in a blocking manner to fix the cover body. Under the pre - tension of the spring, the lifting shaft 2 is in a stable position, thereby enabling the stabilization of the position of the cover body.

[0047] When the cover body should be opened, the user presses one side of the cover body facing the lifting shaft 2. After the cover body is pressed in, the lifting shaft 2 is forced into a downward stroke and driven by the fitting block 6.1 in conjunction with the spiral groove 2.2 to rotate the lifting shaft 2 clockwise to a predetermined angle. At this time, the locking buckle 2.3 can be passed through the groove opening, and the lifting shaft 2 is further moved downward by applying force, thereby driving the rotary seat 3 to rotate clockwise. The torsion spring is preloaded so that the rotary seat 3 rotates counterclockwise due to the torsion spring when the key body passes through the first transmission groove 8.1 moves to the lower right side of the positioning slot, pressing the left side of the positioning groove against the key body, and under the bias of the spring, the key body is tightly pressed against the positioning groove, so that the lifting shaft 2 is restricted from rising and is stable in the second position state. At this time, the locking buckle 2.3 is released from the groove opening, and the user can open the cover body.

[0048] During this process, the fitting groove 3.2 on the rotary seat 3 is rotated so that it faces the positioning pin 4. Furthermore, the motor 5 can drive the incomplete gear 5.2 into a positive rotational movement via the output gear 5.1, which in turn causes the positioning pin 4 to move in an arc into the fitting groove 3.2, so that the rotary seat 3 is limited in its circumference and the rotary seat 3 is stably held in a state in which it limits the lifting shaft 2.

[0049] When it is necessary to close the cover body, the motor 5 may first drive the incomplete gear 5.2 in the opposite direction through the output gear 5.1, so that the positioning pin 4 moves in an arc shape to move out of the fitting groove 3.2. Further, the user closes the cover body. After the cover body comes into contact with the locking buckle 2.3, the lifting shaft 2 is forced to move downward until the height of the key body is lower than the left wall of the positioning groove. Then, the torsion spring continues to drive the rotary seat 3 to rotate counterclockwise, with the position of the positioning groove and the key body in a position where the two are not opposed to each other. The rotary seat 3 rotates counterclockwise until the key body on the lifting shaft 2 is located in the second transmission groove 9.1.At this time, the spring drives the lifting shaft 2 into an upward movement stroke until the locking buckle 2.3 passes through the groove opening and forms a blocking seat with the groove opening.

[0050] The above is only a preferred embodiment of the utility model, and the scope of protection of the present utility model is not limited to the above embodiments. All technical solutions that belong to the ideas of the utility model fall within the scope of protection of the utility model. It should be noted that, for a person skilled in the art, a number of improvements and refinements should also be within the scope of protection of the utility model, provided that the principle of the utility model is not deviated from. List of reference symbols 1 mounting surface 2 lifting shaft 2 . 1 Positioning section 2.2 Spiral groove 2.3 Locking buckle 3 swivel seat 3.1 Boundary section 3.2 Fitting groove 4 positioning pin 5 Engine 5.1 Output wheel 5.2 Gear 6 Guide shaft 6.1 Pass block 7 elastic element 8 first attack 8 . 1 first transfer groove 9 second stop 9 . 1 second transfer groove 10 torsion spring QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] CN 219471812 U

[0003]

Claims

[1] Actuator for a loading or fuel tank cap, comprising: a mounting base (1) provided with an axially movable lifting shaft (1) and a circumferentially rotatable rotary seat (3), wherein the lifting shaft (2) has a first position state in which the lifting shaft is connected to a cover body in its upward movement, wherein the lifting shaft (2) has a second position state in which the lifting shaft is separated from the cover body in its downward movement; wherein the rotary seat (3) is provided with a limiting section (3.1), wherein in the second position state of the lifting shaft (2) the rotary seat (3) is rotated so far that the limiting section (3.1) cooperates with a positioning section (2.1) on the lifting shaft (2) in order to position the lifting shaft (2) and prevent the lifting shaft (2) from being lifted; wherein the rotary seat (3) is provided with a fitting groove (3.2), wherein the mounting base (1) is further provided with a positioning pin (4) which can move back and forth in an arc, wherein the rotary seat (3) is rotated such that the limiting section (3.1) cooperates with the positioning section (2.1), wherein the fitting groove (3.2) is rotated together with the rotary seat (3) into a position such that the positioning pin (4) can move in or out; wherein the positioning pin (4) is inserted into the fitting groove (3.2) to position the bracket in the circumferential direction. [2] Actuator for a loading or tank cap according to claim 1, characterized bythat the fitting groove (3.2) is arranged on the circumferential side of the rotary seat (3), wherein the positioning pin (4) is arranged above the fitting groove (3.2), wherein the rotary seat (3) can be rotated until the inlet and the outlet of the fitting groove (3.2) are opposite the positioning pin (4). [3] Actuator for a loading or tank cap according to claim 1 or 2, characterized by that the mounting base (1) is provided with a motor (5), wherein a gear (5.2) is rotatably connected to the mounting base (1) and is driven to rotate by the motor (5); wherein the positioning pin (4) is attached to the gear (5.2). [4] Actuator for a loading or tank cap according to claim 1, 2 or 3, characterized bythat the mounting base (1) is further provided with a guide shaft (6) which penetrates into the inner bore of the lifting shaft (2); wherein the guide shaft (6) is provided on the outside with a fitting block (6.1), wherein an axially extending spiral groove is arranged on an inner bore wall of the lifting shaft (2), wherein the fitting block (6.1) is connected to the spiral groove (2.2) in an adapted manner. [5] Actuator for a loading or tank cap according to claim 4, characterized by that an elastic element (7) is located between the lifting shaft (2) and the guide shaft (6). [6] Actuator for a loading or tank cap according to claim 4 or 5, characterized bythat the rotary seat (3) is placed on the outside of the lifting shaft (2), wherein the positioning portion (2.1) is a key body that protrudes from the outer wall of the lifting shaft (2); wherein the inner bore of the rotary seat (3) is provided with a projection, wherein the limiting portion (3.1) is formed as a positioning groove arranged at the bottom of the projection, wherein the side wall of the positioning groove is formed as a left-low-right-high adjustment, wherein the lifting shaft (2) is lowered so far that the height of the key body is lower than the right side wall of the positioning groove, wherein the rotary seat (3) is rotated counterclockwise so that the key body enters the positioning groove to limit the rise of the lifting shaft (2). [7] Actuator for a loading or tank cap according to claim 6, characterized bythat a first stop (8) is arranged on the right side of the projection, wherein a second stop (9) is arranged on the left side of the projection, wherein a vertical first transmission groove (8.1) is formed between the first stop (8) and the projection, wherein a vertical second transmission groove (9.1) is formed between the second stop (9) and the projection; wherein the rotating seat (3) is provided with a torsion spring, one end of which is connected to the mounting base (1) and the other end of which is connected to the rotating seat (3); wherein in the first position state of the lifting shaft (2), the key body is arranged above the projection, the lifting shaft (2) descends, the spiral groove (2.2) cooperates with the fitting block (6.1) to rotate the lifting shaft (2) clockwise, the key body enters through the first transmission groove (8.1) under the right wall of the positioning groove, when the key body passes through the first transmission groove (8.1) the rotary seat (3) is driven to rotate clockwise, the torsion spring being preloaded, wherein when the height of the key body is lower than the right side wall of the positioning groove, the torsion spring drives the rotary seat (3) to rotate counterclockwise so that the left side wall of the positioning groove is pressed against the key body, wherein in the second position state of the lifting shaft (2), the lifting shaft (2) lowers until the height of the key body is lower than the left side wall of the positioning groove, the torsion spring returns to the initial state and further drives the rotary seat (3) to rotate counterclockwise so that the key body rotates to the second transmission groove (9.1) and the lifting shaft (2) can rise along the second transmission groove (9.1).

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