A stable and quickly adjustable electric actuator for docks

Abstract

The present invention belongs to the field of valve actuators and discloses an electric actuator for a dock that is stable in operation and can be adjusted quickly. It includes a body, a driving wheel is provided inside the body, a driven wheel is rotatably connected to the bottom of the body, a movable groove is provided on the driven wheel, a No. 1 magnet is provided at the bottom of the movable groove, and a movable column with an arc groove on the outer wall is slidably connected to the movable column through a protrusion, a square column is provided on the top of the movable column, and a No. 2 magnet is provided on the outer wall of the square column, a manual wheel is engaged with the right side of the driven wheel, a rotating rod is provided on the other side of the manual wheel, a crank is provided on the end of the rotating rod that passes through the body, a sliding rod is provided inside the rotating rod, an elastic column is provided on the outer wall of the sliding rod, and a groove is provided on the inner wall of the body; by setting the height of the movable column, the elastic column forms a self-locking for the manual wheel when the valve is closed, so as to avoid the valve from being loosely closed after the power of the body is lost.

Description

Technical Field

[0001] The invention belongs to the field of valve actuators, and in particular relates to an electric actuator for a dock which has stable operation and can be adjusted quickly. Background Art

[0002] Pipeline valves in shipyards can be automatically controlled by electric actuators. Electric actuators, also known as electric actuators, are primarily used to control valves and form electric valves. They can be installed on ball valves, butterfly valves, gate valves, etc., using electricity instead of traditional manual control to rotate valves. They are electromechanical products that control the flow, direction, and flow of various types of fluids, including air, water, steam, various corrosive media, mud, oil, liquid metal, and radioactive media.

[0003] Electric actuators have two operating modes: electric control and manual control. During electric control, the manual operation part will rotate accordingly. When the manual control part is blocked by foreign objects, the stability of the electric operation will be affected. At the same time, in the event of a power outage or failure, the electric actuator cannot control the valve to automatically close, causing a large amount of gas or liquid leakage, which can easily lead to safety accidents.

[0004] To this end, we propose an electric actuator for docks that has stable operation and can be quickly adjusted to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to solve the problem in the prior art that the electric actuator cannot control the valve to automatically close in the event of a power outage or failure, thereby causing a large amount of gas or liquid leakage, which in turn easily leads to safety accidents. A stable and quickly adjustable electric actuator for docks is proposed.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] The electric actuator for a dock with stable operation and rapid adjustment includes a body, a control motor is fixedly connected to the inside of the body, a driving wheel is provided at the output end of the control motor, a driven wheel meshed with the driving wheel is rotatably connected to the bottom of the body, a clamping block is fixedly connected to the lower surface of the driven wheel, a movable groove is provided on the upper surface of the driven wheel, a No. 1 magnet is provided at the bottom of the movable groove, a movable column with an arc groove on the outer wall of the movable groove is slidably connected to the movable column through a protrusion, a square column is fixedly connected to the top of the movable column with a sealing and sliding connection with the top of the body, a No. 2 magnet with a wedge-shaped bottom that is magnetically attracted to the No. 1 magnet is sleeved on the outer wall of the square column, an electromagnet is fixedly connected to the top of the body, and the right side of the driven wheel The cam is engaged with a manual wheel, and the manual wheel is fixedly connected to a rotating rod on the side away from the driven wheel. A crank is provided at one end of the rotating rod passing through the body. A slide rod is slidably connected to the inside of the rotating rod, and a slide groove is provided on the rotating rod. The outer wall of the slide rod is fixedly connected to an elastic column slidably connected to the slide groove. The inner wall of the body is provided with a ring groove matching the elastic column, and the right side of the ring groove is provided with grooves distributed in an array. The two ends of the slide rod pass through the manual wheel and the rotating rod respectively, and the slide rod and the end of the rotating rod extending out of the body are sealed and slidably connected; the side of the No. 2 magnet facing the movable column is wedge-shaped. After the electromagnet loses power, the No. 2 electromagnet descends along the square column due to the influence of gravity, and the wedge-shaped side of the No. 2 electromagnet squeezes the end of the slide rod extending out of the manual wheel.

[0008] When manual operation is required, the crank handle is manually flipped downward, so that the sleeve frame is separated from the limit seat and then engaged with the clutch knob, and the quick adjustment is switched to the manual operation state, and then the crank handle is shaken, and the crank handle drives the sleeve frame to make the clutch knob drive the rotating rod in the body to rotate.

[0009] Preferably, the clutch knob includes a swivel seat fixedly connected to the rotating rod, a retaining ring is fixedly connected to the outside of the swivel seat, a buckle block is fixedly connected to the outside of the retaining ring, a spring buckle is fixedly embedded on the outside of the buckle block, a pair of spring buckles are provided, and the end of the sliding rod away from the driven wheel passes through the buckle block; when the sleeve frame is buckled with the buckle block, the spring buckle is used to increase the separation resistance of the buckle block and the sleeve frame.

[0010] Preferably, the rotating frame includes a bearing seat, and the lower end of the bearing seat is fixedly connected to a rotating ring rotatably connected to the rotating seat; under the electric working condition of the machine body, the rotating frame will not affect the rotation of the rotating rod.

[0011] Preferably, the sleeve includes a buckle, the outside of the buckle is fixedly connected to a buckle sleeve, and the lower end of the buckle sleeve is fixedly connected to a rotating shaft rotatably connected to the bearing seat; the buckle is inserted into the limit seat so that the buckle is stably inserted in the limit seat, thereby enabling the limit seat to restrain the sleeve and prevent the sleeve from rotating.

[0012] Preferably, the limit seat includes a snap-fit ​​seat fixedly connected to the outer wall of the body, the outside of the snap-fit ​​seat is provided with a buckle groove that is snap-fitted with the plug buckle, the upper end of the snap-fit ​​seat is fixedly connected to a reinforcement plate, and a guide groove is provided in the buckle groove; when the plug buckle and the buckle groove are closed, the guide groove is used to guide the plug buckle into the buckle groove.

[0013] Preferably, the crank includes a fixed shaft, the outside of which is fixedly connected to a connecting rod fixedly connected to the top of the buckle sleeve, and the outer wall of the fixed shaft is rotatably connected to a ring sleeve; manually operating the fixed shaft to shake the connecting rod drives the sleeve frame to rotate, so that the sleeve frame drives the clutch knob to rotate; manually pinching the ring sleeve drives the fixed shaft to make the connecting rod revolve.

[0014] Preferably, the length of the movable column is consistent with the vertical distance from the bottom of the movable groove to the center line of the slide rod; after the body loses power, the No. 2 magnet slides downward along the outer wall of the square column, and the No. 2 magnet squeezes the movable column and the slide rod. When the bottom of the movable column fits with the bottom of the movable groove, the No. 2 magnet squeezes the slide rod at the same time, causing the slide rod to move toward the clutch knob, and causing the elastic column on the slide rod to engage with the groove on the inner wall of the shell.

[0015] Preferably, the edge of the movable column is provided with evenly distributed piezoelectric ceramics, which are electrically connected to the external control system through wires; when the No. 2 magnet squeezes the movable column, it collides with the piezoelectric ceramics on the top of the movable column, and the piezoelectric ceramics generate an electrical signal, which is transmitted to the external control system through the wire, thereby telling the staff that the body has lost power.

[0016] Preferably, the outer surface of the square column is engraved with scale lines for display; the driven wheel rotates to open the valve while forcing the movable column to move upward, the square column on the movable column extends out of the body, and the scale lines on the square column show the angle of valve opening.

[0017] In summary, the technical effects and advantages of the present invention are as follows:

[0018] 1. By setting the limit seat and the rotating frame, when the machine body is in electric automatic operation, the control motor drives the driving wheel to rotate, the driving wheel drives the rotating rod to rotate, and the rotating rod drives the clutch knob to rotate. The limit seat and the rotating frame prevent the sleeve and the crank from rotating with the rotating rod. When manual operation is required, the crank is manually flipped downward to separate the sleeve and the limit seat and engage with the clutch knob, and the adjustment is quickly switched to the manual operation state.

[0019] 2. By setting up piezoelectric ceramics, when the body loses power, the electromagnet also loses power and loses its attraction to the second magnet, causing the second magnet to slide downward along the side wall of the square column under the influence of its own gravity. While sliding downward, the second magnet collides with the piezoelectric ceramics on the movable column. The piezoelectric ceramics transmit electrical signals to the external control system through wires, and the control system tells the staff that the body is in a power-off state.

[0020] 3. By setting the height of the movable column, when the No. 2 magnet squeezes the movable column to the bottom of the movable groove, the elastic column on the slide rod moves from the ring groove to the groove and engages with the groove on the inner wall of the body. The elastic column forms a self-locking for the manual wheel to prevent the gas or liquid in the pipeline from having too much impact on the valve, causing the valve to drive the driven wheel to rotate through the clamping block to open the valve, thereby causing the valve to be loosely closed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 Schematic diagram of the internal structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the limit seat structure of the present invention;

[0024] Figure 4 It is a schematic diagram of the clutch knob structure of the present invention;

[0025] Figure 5 It is a schematic diagram of the rotating frame structure of the present invention;

[0026] Figure 6 This is a schematic diagram of the housing splitting structure of the present invention;

[0027] Figure 7 This is a schematic diagram of the crank structure of the present invention;

[0028] Figure 8 It is a cross-sectional view of the overall structure of the present invention;

[0029] Figure 9 for Figure 8 Enlarged view of point A in the middle;

[0030] Figure 10 Schematic diagram of the sliding rod structure of the present invention;

[0031] Figure 11 It is a schematic diagram of the movable column structure of the present invention.

[0032] In the figure: 1. body; 2. control motor; 21. driving wheel; 3. driven wheel; 31. clamping block; 32. movable groove; 33. No. 1 magnet; 34. protrusion; 35. arc groove; 36. movable column; 37. square column; 38. No. 2 magnet; 39. electromagnet; 4. manual wheel; 41. rotating rod; 42. sliding rod; 43. elastic column; 44. ring groove; 45. groove; 5. crank; 51. fixed shaft; 52. connecting rod; 53. ring sleeve; 6. clutch knob; 61. rotating seat; 62. retaining ring; 63. buckle block; 64. spring buckle; 7. rotating frame; 71. bearing seat; 72. rotating ring; 8. sleeve; 81. buckle; 82. buckle sleeve; 83. rotating shaft; 9. limiting seat; 91. clamping seat; 92. buckle groove; 93. reinforcement plate; 94. guide groove. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] Example 1

[0035] Reference Figures 1 to 7 A stable and quickly adjustable electric actuator for a dock includes a body 1, a control motor 2 is fixedly connected to the inside of the body 1, a driving wheel 21 is provided at the output end of the control motor 2, a driven wheel 3 meshing with the driving wheel 21 is rotatably connected to the bottom of the body 1, a clamping block 31 is fixedly connected to the lower surface of the driven wheel 3, a manual wheel 4 is meshed with the right side of the driven wheel 3, a rotating rod 41 is fixedly connected to the side of the manual wheel 4 away from the driven wheel 3, and a crank 5 is provided at the end of the rotating rod 41 that passes through the body 1.

[0036] Specifically, one end of the rotating rod 41 extending out of the body 1 is fixedly connected to the clutch knob 6, the outer wall of the clutch knob 6 is rotatably connected to the rotating frame 7, the upper part of the rotating frame 7 is rotatably connected to the sleeve frame 8, the upper end of the sleeve frame 8 is fixedly connected to the crank 5, the outside of the body 1 is fixedly connected to the limit seat 9, the limit seat 9 is snap-fitted with the sleeve frame 8, and the sleeve frame 8 is snap-fitted with the clutch knob 6; when the body 1 is electrically operated automatically, the control motor 2 drives the driving wheel 21 to rotate, and the driving wheel 21 drives the driven wheel 3 to adjust the opening and closing degree of the valve, and the driven wheel 3 is synchronously belted When the manual wheel 4 is moved, the manual wheel 4 drives the rotating rod 41 to rotate, and the rotating rod 41 drives the clutch knob 6 to rotate. The rotating frame 7 and the clutch knob 6 are connected by rotation, and the limiting seat 9 is used to clamp the sleeve frame 8 to prevent the sleeve frame 8 and the crank 5 from rotating with the rotating rod 41. When manual operation is required, the crank 5 is manually flipped downward to separate the sleeve frame 8 from the limiting seat 9 and then engage with the clutch knob 6. The adjustment is quickly switched to the manual operation state, and then the crank 5 is shaken. The crank 5 drives the sleeve frame 8 to make the clutch knob 6 drive the rotating rod 41 in the body 1 to rotate.

[0037] Specifically, the clutch knob 6 includes a swivel seat 61 fixedly connected to the rotating rod 41, a retaining ring 62 is fixedly connected to the outside of the swivel seat 61, a buckle block 63 is fixedly connected to the outside of the retaining ring 62, a spring buckle 64 is embedded and fixed on the outside of the buckle block 63, and a pair of spring buckles 64 are provided. The end of the sliding rod 42 away from the driven wheel 3 passes through the buckle block 63; when the sleeve 8 is engaged with the buckle block 63, the spring buckle 64 is used to increase the separation resistance of the buckle block 63 and the sleeve 8.

[0038] Specifically, the rotating frame 7 includes a bearing seat 71 , and the lower end of the bearing seat 71 is fixedly connected to a rotating ring 72 rotatably connected to the rotating seat 61 ; under the electric working condition of the machine body 1 , the rotating frame 7 will not affect the rotation of the rotating rod 41 .

[0039] Specifically, the sleeve 8 includes a buckle 81, the outside of the buckle 81 is fixedly connected to a buckle sleeve 82, and the lower end of the buckle sleeve 82 is fixedly connected to a rotating shaft 83 rotatably connected to the bearing seat 71; the buckle 81 is inserted into the limit seat 9 so that the buckle 81 is stably inserted in the limit seat 9, so that the limit seat 9 can restrain the sleeve 8 and prevent the sleeve 8 from rotating.

[0040] Specifically, the limit seat 9 includes a clamping seat 91 fixedly connected to the outer wall of the body 1, and the outside of the clamping seat 91 is provided with a buckle groove 92 that is clamped with the plug buckle 81. The upper end of the clamping seat 91 is fixedly connected with a reinforcing plate 93, and a guide groove 94 is provided in the buckle groove 92; when the plug buckle 81 and the buckle groove 92 are closed, the guide groove 94 is used to guide the plug buckle 81 into the buckle groove 92.

[0041] Specifically, the crank 5 includes a fixed shaft 51, the outside of the fixed shaft 51 is fixedly connected to a connecting rod 52 fixedly connected to the top of the buckle sleeve 82, and the outer wall of the fixed shaft 51 is rotatably connected to a ring sleeve 53; the fixed shaft 51 is manually operated to shake the connecting rod 52 to drive the sleeve frame 8 to rotate, so that the sleeve frame 8 drives the clutch knob 6 to rotate; the ring sleeve 53 is pinched by hand to drive the fixed shaft 51 to make the connecting rod 52 revolve.

[0042] During automatic operation, the clamping block 31 inside the body 1 is clamped with the valve in the pipeline, and the body 1 performs electric automatic operation, the control motor 2 drives the driving wheel 21 to rotate, the driving wheel 21 drives the driven wheel 3 to adjust the opening and closing of the valve, the driven wheel 3 synchronously drives the manual wheel 4 to rotate, the manual wheel 4 drives the rotating rod 41 to rotate, and the rotating rod 41 drives the clutch knob 6 to rotate. At this time, the clamping seat 91 restrains the buckle 81, so that the sleeve 8 is stabilized, preventing the sleeve 8 from rotating with the rotating rod 41, so that the sleeve 8 is and the crank 5 remains stationary, thereby ensuring the stability of the electric execution; when manual operation is required, the connecting rod 52 is gripped and flipped downward, and the buckle sleeve 82 is driven to flip downward by the connecting rod 52, so that the buckle sleeve 82 is sleeved on the buckle block 63, and the device is quickly adjusted to the manual operation state, and then the ring sleeve 53 is pinched by hand to drive the fixed shaft 51, so that the connecting rod 52 drives the sleeve frame 8 to revolve, so that the sleeve frame 8 drives the buckle block 63 to rotate the swivel seat 61, and then the swivel seat 61 drives the rotating rod 41 inside the body 1 to rotate.

[0043] Example 2

[0044] While the previous embodiment can ensure that the motor 2 controls the opening and closing of the valve while maintaining the manual adjustment function of the body 1 without affecting the electric operation, if the body 1 experiences a power outage, the body 1 cannot generate an alarm and the valve cannot automatically close, resulting in a large amount of gas or liquid leakage. In view of this, improvements have been made based on the first embodiment, and the improved technical solution is as follows.

[0045] Reference Figure 2 、 Figures 8 to 11, an electric actuator for a dock with stable operation and rapid adjustment, including a body 1, a control motor 2 is fixedly connected to the inside of the body 1, a driving wheel 21 is provided at the output end of the control motor 2, a driven wheel 3 is rotatably connected to the bottom of the body 1 and meshed with the driving wheel 21, a clamping block 31 is fixedly connected to the lower surface of the driven wheel 3, a movable groove 32 is provided on the upper surface of the driven wheel 3, a first magnet 33 is provided at the bottom of the movable groove 32, a movable column 36 with an arc groove 35 on the outer wall of the movable groove 32 is slidably connected through a protrusion 34, a square column 37 is fixedly connected to the top of the movable column 36 with a sealing and sliding connection with the top of the body 1, a second magnet 38 with a wedge-shaped bottom is sleeved on the outer wall of the square column 37, which is magnetically attracted to the first magnet 33, and the electromagnet 39 is fixedly connected to the top of the body 1, and a manual The wheel 4 and the manual wheel 4 are fixedly connected to a rotating rod 41 on the side away from the driven wheel 3. The end of the rotating rod 41 passing through the body 1 is provided with a crank 5. The inside of the rotating rod 41 is slidably connected to a slide rod 42. The rotating rod 41 is provided with a slide groove. The outer wall of the slide rod 42 is fixedly connected to an elastic column 43 slidably connected to the slide groove. The inner wall of the body 1 is provided with a ring groove 44 that cooperates with the elastic column 43. The right side of the ring groove 44 is provided with grooves 45 distributed in an array. The two ends of the slide rod 42 pass through the manual wheel 4 and the rotating rod 41 respectively, and the slide rod 42 is sealed and slidably connected to one end of the rotating rod 41 extending out of the body 1; the side of the No. 2 magnet 38 facing the movable column 36 is wedge-shaped. After the electromagnet 39 loses power, the No. 2 electromagnet 39 descends along the square column 37 due to the influence of gravity, and the wedge-shaped side of the No. 2 electromagnet 39 squeezes the end of the slide rod 42 extending out of the manual wheel 4.

[0046] Specifically, the length of the movable column 36 is consistent with the vertical distance from the bottom of the movable groove 32 to the center line of the slide rod 42; after the body 1 loses power, the No. 2 magnet 38 slides downward along the outer wall of the square column 37, and the No. 2 magnet 38 squeezes the movable column 36 and the slide rod 42. When the bottom of the movable column 36 is in contact with the bottom of the movable groove 32, the No. 2 magnet 38 squeezes the slide rod 42 at the same time, causing the slide rod 42 to move toward the clutch knob 6, and causing the elastic column 43 on the slide rod 42 to engage with the groove 45 on the inner wall of the shell.

[0047] Specifically, piezoelectric ceramics are evenly distributed on the edge of the movable column 36, and the piezoelectric ceramics are electrically connected to the external control system through wires; when the second magnet 38 squeezes the movable column 36, it collides with the piezoelectric ceramics on the top of the movable column 36, and the piezoelectric ceramics generate an electrical signal, which is transmitted to the external control system through the wire, thereby telling the staff that the body 1 has lost power.

[0048] Specifically, the outer surface of the square column 37 is engraved with scale lines for display; the driven wheel 3 rotates to open the valve while forcing the movable column 36 to move upward, and the square column 37 on the movable column 36 extends out of the body 1, and the scale lines on the square column 37 show the angle of valve opening.

[0049] When the body 1 is working normally, the external control system drives the control motor 2 to rotate, and the control motor 2 drives the driving wheel 21 to rotate, and the driving wheel 21 drives the driven wheel 3 to rotate. When the driven wheel 3 rotates, the clamping block 31 at the bottom of the driven wheel 3, which is clamped with the pipeline valve, drives the valve to rotate, thereby adjusting the opening and closing degree of the valve. Since the protrusion 34 in the movable groove 32 slides in the arc groove 35 of the movable column 36, and the upper part of the movable column 36 is fixedly connected to a square column 37 that is sealed and slidably connected to the top of the body 1, when the driven wheel 3 rotates, the movable column 36 is driven to move toward the top of the body 1. The upward movement of the movable column 36 represents that the valve is open, and the downward movement of the movable column 36 represents that the valve is closed; at the same time, when the driven wheel 3 rotates, it will synchronously drive the manual wheel 4 to rotate, and the manual wheel 4 drives the rotating rod 41 to rotate. When the elastic column 43 on the sliding rod 42 is electrically operated, the elastic column 43 rotates in the annular groove 44. During the rotation of the driven wheel 3, the elastic column 43 will not affect the electric operation.

[0050] When the body 1 loses power, the electromagnet 39 also loses power and loses its attraction to the second magnet 38, so that the second magnet 38 slides downward along the side wall of the square column 37 under the influence of its own gravity. While sliding downward, the second magnet 38 collides with the piezoelectric ceramic on the movable column 36. The piezoelectric ceramic transmits an electrical signal to the external control system through a wire, and the control system tells the staff that the body 1 is in a power-off state; while the second magnet 38 descends along the square column 37, it is magnetically attracted to the first magnet 33 at the bottom of the movable slot 32, so that when the second magnet 38 and the movable column After the top of the movable column 36 contacts, the movable column 36 is driven to move to the bottom of the movable groove 32. Since the square column 37 on the top of the movable column 36 is sealed and slidably connected with the top of the body 1, and the arc groove 35 on the movable column 36 is slidably connected with the protrusion 34 inside the movable groove 32, under the influence of the magnetic attraction between the second magnet 38 and the first magnet 33, when the movable column 36 moves to the bottom of the movable groove 32, the movable column 36 drives the driven wheel 3 to reverse, thereby causing the valve that is clamped with the clamping block 31 to reverse and close. At the same time, when the second magnet 38 squeezes the movable column 36 to descend, the second magnet 38 and the first magnet 33 are attracted to each other. The outer wall of the No. 1 magnet 38 is squeezed against the end of the slide bar 42 that passes through the manual wheel 4, causing the slide bar 42 to move toward the end of the rotating rod 41 away from the manual wheel 4, and causing the elastic column 43 on the slide bar 42 to move from the annular groove 44 to the groove 45 and engage with the groove 45. Since the height of the movable column 36 is consistent with the vertical distance from the bottom of the movable groove 32 to the center line of the slide bar 42, when the No. 2 magnet 38 squeezes the movable column 36 to reach the bottom of the movable groove 32, the elastic column 43 on the slide bar 42 moves from the annular groove 44 to the groove 45 and engages with the groove 45 on the inner wall of the body 1. When the movable column 36 reaches the bottom of the movable groove 32, the valve is completely closed, and the elastic column 43 on the slide rod 42 is engaged with the groove 45 and forms a self-locking with the rotating rod 41, and then forms a self-locking with the manual wheel 4. The magnetic attraction of the second magnet 38 to the first magnet 33 is greater than the impact force of the gas or liquid in the pipeline on the valve. The elastic force of the elastic column 43 is greater than the impact force of the gas or liquid in the pipeline on the valve, which avoids excessive impact of the gas or liquid in the pipeline on the valve, so that the valve is driven by the clamping block 31 and the driven wheel 3 to rotate to open the valve, thereby causing the valve to be loosely closed.

[0051] After receiving the electrical signal sent by the piezoelectric ceramic, the control system notifies the staff to inspect the body 1 to see if the fault is caused by a malfunction of the body 1. If so, and the valve in the pipeline still needs to be in an open state at this time, the staff needs to engage the crank 5 with the clutch knob 6, and then manually crank the crank 5, so that the crank 5 drives the clutch knob 6 to rotate, and the clutch knob 6 drives the rotating rod 41 to rotate, and the rotating rod 41 drives the slide rod 42 and the manual wheel 4 to rotate. Since the driving wheel 21 and the manual wheel 4 are both engaged with the driven wheel 3, the driven wheel 3 is synchronously driven to rotate when the manual wheel 4 rotates. When the driven wheel 3 rotates, the opening degree of the valve is adjusted through the clamping block 31. Since the grooves 45 are distributed in an array inside the body 1, when the slide rod 42 rotates, the elastic column 43 is always locked with different grooves 45 on the same plane, and then after the manual adjustment of the valve is completed, the elastic column 43 can still lock the rotating rod 41.

[0052] If the power failure of the machine body 1 is caused by an accidental trip, then after the machine body 1 is powered on again, the control motor 2 drives the driving wheel 21 to rotate again, so that the driving wheel 21 drives the driven wheel 3 to open the valve. Due to the electric operation, the electromagnet 39 is energized and the driven wheel 3 drives the movable column 36 to move toward the top of the machine body 1. As the movable column 36 moves toward the top of the machine body 1, the distance between the second magnet 38 and the first magnet 33 gradually increases, and the distance between the second magnet 38 and the electromagnet 39 gradually decreases, and the magnetic force generated by the electromagnet 39 is greater than the magnetic force between the second magnet 38 and the first magnet 33. The sum of the two, so that in the process of the movable column 36 moving upward, the electromagnet 39 and the second magnet 38 will be re-attracted, and the second magnet 38 will leave the top of the movable column 36, which is convenient for next use; at the same time, since the end of the slide bar 42 away from the manual wheel 4 passes through the outside of the body 1, after the body 1 is powered on again and the electromagnet 39 and the second magnet 38 are re-attracted, the part of the slide bar 42 located outside the body 1 is manually pushed to move it toward the direction of the manual wheel 4, so that the elastic column 43 is disengaged from the groove 45 and enters the inside of the annular groove 44, so that the elastic column 43 will not affect the electric state.

[0053] The above are only preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

[0054] The description briefly mentions the application direction of the present invention for the existing technologies that are known to and unchanged by those skilled in the art, and combines them with the present invention to form a complete technology; the method avoids over-popularizing technologies familiar to those skilled in the art to assist them in quickly understanding the main content of the present invention.

Claims

1. A stable and rapidly adjustable electric actuator for a dock, comprising a body, characterized in that: The interior of the body is fixedly connected to a control motor, the output end of the control motor is provided with a driving wheel, the bottom of the body is rotatably connected to a driven wheel meshing with the driving wheel, the lower surface of the driven wheel is fixedly connected to a clamping block, the upper surface of the driven wheel is provided with a movable groove, the bottom of the movable groove is provided with a No. 1 magnet, the movable groove is slidably connected to a movable column with an arc groove on the outer wall through a protrusion, the top of the movable column is fixedly connected to a square column sealed and slidably connected to the top of the body, the outer wall of the square column is provided with a No. 2 magnet magnetically attracted to the No. 1 magnet and having a wedge-shaped bottom, The top of the body is fixedly connected to an electromagnet, the right side of the driven wheel is meshed with a manual wheel, the side of the manual wheel away from the driven wheel is fixedly connected to a rotating rod, the end of the rotating rod passing through the body is provided with a crank, the interior of the rotating rod is slidably connected to a sliding rod, a sliding groove is provided on the rotating rod, the outer wall of the sliding rod is fixedly connected to an elastic column slidably connected to the sliding groove, the inner wall of the body is provided with a ring groove matching the elastic column, the right side of the ring groove is provided with grooves distributed in an array, the two ends of the sliding rod pass through the manual wheel and the rotating rod respectively, and the sliding rod is sealed and slidably connected to one end of the rotating rod extending out of the body; One end of the rotating rod extending out of the body is fixedly connected to the clutch knob, the outer wall of the clutch knob is rotatably connected to the rotating frame, the upper part of the rotating frame is rotatably connected to the sleeve frame, the upper end of the sleeve frame is fixedly connected to the crank, the outside of the body is fixedly connected to the limit seat, the limit seat is snap-fitted with the sleeve frame, and the sleeve frame is snap-fitted with the clutch knob; The clutch knob includes a rotating seat fixedly connected to the rotating rod, a retaining ring fixedly connected to the outside of the rotating seat, a buckle block fixedly connected to the outside of the retaining ring, a spring buckle fixedly engaged with the outside of the buckle block, a pair of spring buckles are provided, and the end of the sliding rod away from the driven wheel passes through the buckle block; The rotating frame includes a bearing seat, and the lower end of the bearing seat is fixedly connected to a rotating ring rotatably connected to the rotating seat; The sleeve frame includes a buckle, the outer portion of the buckle is fixedly connected to a buckle sleeve, and the lower end of the buckle sleeve is fixedly connected to a rotating shaft rotatably connected to the bearing seat; The edge of the movable column is provided with evenly distributed piezoelectric ceramics, and the piezoelectric ceramics are electrically connected to an external control system through a wire.

2. The electric actuator for a dock with stable operation and rapid adjustment according to claim 1, characterized in that: The limit seat includes a clamping seat fixedly connected to the outer wall of the body, the outside of the clamping seat is provided with a buckle groove that is clamped with the plug buckle, the upper end of the clamping seat is fixedly connected to a reinforcement plate, and a guide groove is provided in the buckle groove.

3. The electric actuator for a dock with stable operation and rapid adjustment according to claim 1, characterized in that: The crank comprises a fixed shaft, the exterior of the fixed shaft is fixedly connected to a connecting rod fixedly connected to the top of the buckle sleeve, and the outer wall of the fixed shaft is rotatably connected to a ring sleeve.

4. The electric actuator for a dock with stable operation and rapid adjustment according to claim 1, characterized in that: The length of the movable column is consistent with the vertical distance from the bottom of the movable groove to the center line of the sliding rod.

5. The electric actuator for a dock with stable operation and rapid adjustment according to claim 1, characterized in that: The outer surface of the square column is engraved with scale lines for display.

Images