Low-power-consumption quick-response electronic actuator based on rotary unlocking

Abstract

The utility model discloses a low power consumption fast response electronic actuator based on rotary unlocking, which comprises an outer shell (1), a mounting cavity is formed on the inner side of the outer shell (1), a bushing (2) is arranged in the mounting cavity, the middle of the bushing (2) is connected with a motor (3), two sides of the bushing (2) are respectively provided with a locking feedback switch (4) and an unlocking feedback switch (5), and the outside of an output shaft of the motor (3) is connected with a connecting shaft (6). A rotating arm (7) is arranged outside the connecting shaft (6), one side of the rotating arm (7) is provided with a triggering part (701) used for independently triggering the locking feedback switch (4) or the unlocking feedback switch (5) after rotation, and the outer portion of the connecting shaft (6) is connected with an output shaft (8). According to the utility model, rotation insurance and feedback functions of the electronic actuator can be realized.

Description

Technical Field

[0001] This utility model relates to an electronic actuator, and more particularly to a low-power, fast-response electronic actuator based on rotation unlocking. Background Technology

[0002] Existing electronic actuators used in military equipment are generally pin pullers with push-pull pin functions, as shown in patent 202220641323.9. These actuators convert the rotational motion of a motor into the extension and retraction of an output shaft via a mechanical transmission mechanism, thus achieving the loaded pin pull function. However, with increasing user demands, current military equipment designs also require electronic actuators with off-load rotational safety functions. Furthermore, these actuators need to provide synchronous feedback after performing rotational locking and unlocking actions. Therefore, designing an electronic actuator with both rotational safety and feedback functions has become a pressing technical problem for manufacturers. Utility Model Content

[0003] The purpose of this invention is to provide a low-power, fast-response electronic actuator based on rotation unlocking. It enables the electronic actuator to achieve rotational safety and feedback functions.

[0004] The technical solution of this utility model is as follows: A low-power fast-response electronic actuator based on rotation unlocking includes a housing, an inner cavity forming a mounting cavity, a bushing provided in the mounting cavity, a motor connected to the middle of the bushing, a locking feedback switch and an unlocking feedback switch respectively provided on both sides of the bushing, a connecting shaft externally connected to the output shaft of the motor, a rotating arm externally provided on the connecting shaft, a triggering part on one side of the rotating arm for individually triggering the locking feedback switch or the unlocking feedback switch after rotation, and an output shaft externally connected to the connecting shaft.

[0005] In the aforementioned low-power fast-response electronic actuator based on rotational unlocking, the middle part of the connecting shaft is rotatably connected to the outer casing via a bearing.

[0006] In the aforementioned low-power fast-response electronic actuator based on rotation unlocking, one end of the connecting shaft is fastened to the motor output shaft via a first slot, and the other end of the connecting shaft is fastened to the output shaft via a second slot. The rotating arm is sleeved on the outer side of the middle part of the connecting shaft and forms a transmission connection with the connecting shaft.

[0007] In the aforementioned low-power fast-response electronic actuator based on rotary unlocking, two mounting slots are provided on both sides of the bushing, and the locking feedback switch and unlocking feedback switch are respectively fastened and connected in the two mounting slots. Circuit boards are connected to the outside of both the locking feedback switch and the unlocking feedback switch.

[0008] In the aforementioned low-power fast-response electronic actuator based on rotation unlocking, a limiting groove is provided on one side of the bushing, and a limiting part located in the limiting groove is provided on one side of the rotating arm. The limiting groove is used to limit the rotation angle of the rotating arm.

[0009] In the aforementioned low-power fast-response electronic actuator based on rotary unlocking, the outer casing includes a sleeve, with a top cover and a tail cover at each end of the sleeve, and the top cover and tail cover are connected by screws at both ends of the bushing.

[0010] In the aforementioned low-power fast-response electronic actuator based on rotation unlocking, a rotation groove is formed in the middle of the bushing, and the trigger buttons of the locking feedback switch and the unlocking feedback switch both extend into the rotation groove. The triggering part is used to trigger the locking feedback switch or the unlocking feedback switch by pressing the trigger button after rotation.

[0011] Compared with the prior art, this utility model has the following characteristics:

[0012] (1) By limiting the structure of the electronic actuator, the connecting shaft can drive the output shaft to rotate under the drive of the motor, thereby realizing the rotational safety function of the device. On the other hand, it can drive the rotating arm to rotate, and the rotating arm can trigger the locking feedback switch or the unlocking feedback switch after rotating to the correct position, thereby realizing the feedback function. On this basis, the rotation angle of the connecting shaft can be limited by the cooperation of the limiting groove and the limiting part, thereby ensuring the stability of the locking and unlocking action of the output shaft.

[0013] (2) By limiting the connection structure of the outer shell, the locking feedback switch, the unlocking feedback switch, the connecting shaft and the rotating arm, not only can the internal space of the mounting cavity be effectively utilized and the overall volume of the electronic actuator be reduced, but the connecting shaft will not be hindered by friction during rotation, thereby effectively improving its rotation efficiency and reducing the power consumption of the motor drive.

[0014] (3) By limiting the assembly structure of the outer shell and the connection structure of the outer shell and the parts in the mounting cavity, the motor, the interlocking feedback switch, the unlocking feedback switch and the circuit board can be fixed on the bushing and form a modular structure. During installation, the modular structure can be snapped into the sleeve as a whole and clamped and fixed from both ends using the top cover and the tail cover, which effectively improves the manufacturer's ease of operation of the electronic actuator.

[0015] Therefore, this invention can realize the rotational safety and feedback functions of the electronic actuator. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is the outline drawing of this utility model;

[0018] Figure 3 This is an exploded view of this utility model;

[0019] Figure 4 This is a schematic diagram of the rotating arm in the locked state;

[0020] Figure 5 This is a schematic diagram of the rotating arm in the unlocked state.

[0021] The markings in the attached diagram are as follows: 1-outer shell, 2-shield, 3-motor, 4-locking feedback switch, 5-unlocking feedback switch, 6-connecting shaft, 7-rotating arm, 8-output shaft, 9-bearing, 101-sleeve, 102-top cover, 103-tail cover, 201-mounting groove, 202-limiting groove, 203-rotation groove, 701-trigger part, 702-limiting part. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0023] Example. A low-power, fast-response electronic actuator based on rotation unlocking, configured as follows: Figure 1 As shown, the device includes an outer shell 1, with an inner cavity forming a mounting cavity. A bushing 2 is provided inside the mounting cavity. The bushing 2 is injection molded from POM material. A motor 3 is fixedly connected to the middle of the bushing 2. The motor 3 is a motor with a reducer. A locking feedback switch 4 and an unlocking feedback switch 5 are respectively provided on both sides of the bushing 2. The locking feedback switch 4 and the unlocking feedback switch 5 are arranged perpendicularly at 90°. A connecting shaft 6 is externally connected to the output shaft of the motor 3. A rotating arm 7 is externally connected to the connecting shaft 6. A trigger part 701 is provided on one side of the rotating arm 7 for individually triggering the locking feedback switch 4 or the unlocking feedback switch 5 after rotation. An output shaft 8 is externally connected to the connecting shaft 6. The end of the output shaft 8 extends to the outside of the outer shell 1.

[0024] The middle part of the connecting shaft 6 is rotatably connected to the outer shell 1 via the bearing 9.

[0025] One end of the connecting shaft 6 is fastened to the output shaft of the motor 3 via the first slot, and the other end of the connecting shaft 6 is fastened to the output shaft 8 via the second slot. The output shaft 8 and the second slot are interference-fitted together. The rotating arm 7 is sleeved on the outer side of the middle part of the connecting shaft 6 and forms a transmission connection with the connecting shaft 6 by interference fit or insertion of a special hole.

[0026] The bushing 2 has two mounting slots 201 distributed around its circumference on both sides. The locking feedback switch 4 and unlocking feedback switch 5 are respectively fastened and connected in the two mounting slots 201. The outer sides of the locking feedback switch 4 and unlocking feedback switch 5 are connected to circuit boards located in the mounting slots 201.

[0027] The bushing 2 has a limiting groove 202 on one side, and the rotating arm 7 has a limiting part 702 located in the limiting groove 202 on the side away from the trigger part 701. The limiting groove 202 is used to limit the rotation angle of the rotating arm 7. The limiting groove 202 and the mounting groove 201 are located around the bushing 2 and are staggered to each other.

[0028] The outer casing 1 includes a hollow sleeve 101. The bushing 2 and the sleeve 101 are nested together. The two ends of the sleeve 101 are respectively provided with a top cover 102 and a tail cover 103. The top cover 102, the sleeve 101 and the tail cover 103 are fitted together in sequence. The bearing 9 is fastened to the inside of the top cover 102. The two ends of the bushing 2 are screwed to connect the top cover 102 and the tail cover 103.

[0029] The tail cover 103 has multiple cable outlet holes arranged in a triangle in the middle, and the cable outlet holes and screws are staggered. The tail cover 103 has two symmetrically distributed mounting holes on both sides for overall installation and fixation of the electronic actuator.

[0030] The bushing 2 forms a rotating groove 203 in the middle. The rotating groove 203 is connected to the mounting groove 201 and the limiting groove 202 on all four sides. The trigger buttons of the locking feedback switch 4 and the unlocking feedback switch 5 extend into the rotating groove 203. The trigger part 701 is used to trigger the locking feedback switch 4 or the unlocking feedback switch 5 by pressing the trigger button after rotation.

[0031] A limiting plate is provided in the middle of the connecting shaft 6. One side of the limiting plate is in contact with the inner ring of the bearing 9 and is used to limit the bearing 9 axially. The other side of the limiting plate is in contact with the rotating arm 7 and is used to limit the axial position of the rotating arm 7.

[0032] The working principle of this invention is as follows: In use, the upper-level system supplies power to the motor 3 via an external DC power source, causing the motor 3 to rotate the connecting shaft 6. This rotation of the connecting shaft 6 drives the output shaft 8 to rotate synchronously, achieving a mechanical unlocking function. Simultaneously, the rotating arm 7 rotates synchronously with the connecting shaft 6, pressing the unlocking feedback switch 5 upon reaching its position. The unlocking feedback switch 5 then outputs a feedback signal, indicating the current state of the electronic actuator. When the electronic actuator resets, the external DC power source reverses the power supply to the motor 3, causing it to rotate in reverse, resetting the connecting shaft 6 and the output shaft 8 and achieving a locking function. Simultaneously, the rotating arm 7 disengages from the unlocking feedback switch 5 and presses the locking feedback switch 4, which outputs a feedback signal, thus achieving a closed-loop feedback function.

Claims

1. A low power consumption fast response electronic actuator based on rotation unlocking, characterized in that: The utility model relates to a kind of motorized lock, including outer shell (1), the inside of outer shell (1) forms installation cavity, and the inside of installation cavity is equipped with bushing (2), the middle part of bushing (2) is connected with motor (3), the both sides of bushing (2) are equipped with locking feedback switch (4) and unlocking feedback switch (5) respectively, the outside of the output shaft of motor (3) is connected with connecting shaft (6), the outside of connecting shaft (6) is equipped with rotary arm (7), one side of rotary arm (7) is equipped with trigger part (701) for separately triggering locking feedback switch (4) or unlocking feedback switch (5) after rotation, the outside of connecting shaft (6) is connected with out shaft (8).

2. The low power consumption fast response electronic actuator based on rotation unlocking according to claim 1, characterized in that: The middle part of the connecting shaft (6) is rotatably connected to the outer shell (1) via a bearing (9).

3. The low power consumption fast response electronic actuator based on rotation unlocking according to claim 1, characterized in that: One end of the connecting shaft (6) is connected to the output shaft of the motor (3) via a first clamping slot, and the other end of the connecting shaft (6) is connected to the out shaft (8) via a second clamping slot.

4. The low power consumption fast response electronic actuator based on rotation unlocking according to claim 1, characterized in that: The both sides of the bushing (2) are respectively equipped with two mounting grooves (201), and the locking feedback switch (4) and the unlocking feedback switch (5) are respectively connected in the two mounting grooves (201).

5. The low power consumption fast response electronic actuator based on rotation unlocking according to claim 1, characterized in that: One side of the bushing (2) is equipped with a limiting groove (202), and one side of the rotary arm (7) is equipped with a limiting part (702) located in the limiting groove (202), and the limiting groove (202) is used for limiting the rotation angle of the rotary arm (7).

6. The low power consumption fast response electronic actuator based on rotation unlocking according to claim 1, characterized in that: The outer shell (1) includes a sleeve (101), and the both ends of the sleeve (101) are respectively equipped with a top cover (102) and a tail cover (103).

7. The low power consumption fast response electronic actuator based on rotation unlocking according to claim 1, characterized in that: The middle part of the bushing (2) forms a rotating groove (203), and the trigger buttons of the locking feedback switch (4) and the unlocking feedback switch (5) extend into the rotating groove (203), and the trigger part (701) is used for triggering the locking feedback switch (4) or the unlocking feedback switch (5) by pressing the trigger button after rotation.

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