Large-torque electric valve actuator

Abstract

The utility model discloses a large-torque electric valve actuator which comprises a box body, a middle connecting seat and a motor. A top blank cap is arranged on the surface of the box body, a connecting disc is arranged on one side of the box body, an oil seal A is connected between the box body and the connecting disc, and a stroke rotating piece is arranged in the box body; according to the electric valve actuator, the motor is started to drive the gear to rotate, the gear is meshed with the worm gear, so that the worm gear can be driven to rotate under the rotation of the gear, the worm gear can drive the worm part to rotate in the box body, and the work of the electric valve actuator is completed; the bolt is pulled out from one side of the rotating rod, limitation on the rotating rod is relieved, the handle is pushed, the handle drives one end of the rotating rod to be inserted into the bottom of the worm part, the handle is rotated, the rotating rod and the worm part can be driven to rotate through the handle, the electric valve actuator is further controlled, and electric and manual driving of the electric valve actuator can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric valve actuators, in particular to a large-torque electric valve actuator. Background Art

[0002] An electric actuator is a driving device that can provide linear or rotational motion. It uses a certain driving energy and works under a certain control signal. The actuator uses liquid, gas, electricity or other energy and converts it into driving action through a motor, cylinder or other device.

[0003] In the related technology, a solution of a valve electric actuator (Announcement No.: CN210034597U) was found after searching. When in use, after the nut is tightened during the connection process, the spring will provide an elastic force to the nut after being squeezed, thereby increasing the friction between the nut and the screw, so that the spring can lock the nut, thereby further ensuring that the nut will not loosen on the screw, and further ensuring that the block will not loosen on the rotating shaft during use, thereby ensuring the working stability of the actuator.

[0004] However, while the aforementioned electric actuators can operate via motors, if the motor or driver fails, the electric actuator cannot be used. In emergency situations, swift action is often required to shut down the entire system or implement other complex measures before repairs can be performed, increasing the difficulty and time required for repairs. To address this, we have developed a high-torque electric valve actuator. Utility Model Content

[0005] The purpose of the present utility model is to provide a large-torque electric valve actuator to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a large torque electric valve actuator, comprising: a box body, an intermediate connecting seat and a motor;

[0007] The surface of the box body is provided with a top cover, a connecting plate is provided on one side of the box body, an oil seal A is connected between the box body and the connecting plate, and the oil seal A is provided to seal the gap between the box body and the connecting plate, and a travel rotating member is provided inside the box body;

[0008] The intermediate connecting seat is arranged on one side of the box body, and an O-ring is connected between the intermediate connecting seat and the box body. The O-ring is used to seal the gap between the intermediate connecting seat and the box body. One side of the intermediate connecting seat is connected to an electrical control box, and electrical components are arranged inside the electrical control box.

[0009] The motor is arranged on one side of the box body, and the motor and the box body are connected by bolts. A rotating mechanism is arranged inside the box body at the output end of the motor, and the gears of the rotating mechanism drive the worm gear and the worm member to rotate.

[0010] Preferably, the rotating mechanism includes a left end cover connected to one side of the housing, and an oil seal B is provided on the inner side of the left end cover. The setting of the oil seal B can better seal, and the gear is connected to the output end of the motor, and the worm gear is meshed with the gear. The worm member is connected to the surface of the worm gear. The starting of the motor can drive the gear to rotate. Since the gear and the worm gear are meshed, the worm gear can be driven to rotate when the gear rotates, and the worm gear will drive the worm member to rotate inside the housing, and the worm member is located inside the housing.

[0011] Preferably, a handle is provided at the bottom of the box, one end of the handle is connected to a rotating rod, the rotating rod and the handle are fixed, the rotating rod extends to the inside of the box, one side of the bottom of the box is connected to a right end cover, and a compression spring is provided on the surface of the rotating rod.

[0012] Preferably, a latch is provided on one side of the right end cover. The provision of the latch can limit the movement of the rotating rod, and pulling out the latch allows the rotating rod to move.

[0013] Preferably, an opening indicator is provided on one side of the interior of the box body, a stroke controller is provided at the bottom of the opening indicator, a torque limiter is provided on one side of the opening indicator, and a grounding sign is provided on the side of the stroke controller.

[0014] Preferably, a junction box is provided on one side of the box body, and the junction box facilitates the docking of the wiring harness.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention can drive the gear to rotate by starting the motor, and since the gear and the worm gear are meshed, the rotation of the gear can drive the worm gear to rotate, and the worm gear will drive the worm member to rotate inside the box, thereby completing the work of the electric valve actuator, and is more convenient to use;

[0016] By pulling the pin out from one side of the rotating rod, the restriction on the rotating rod is released, and the handle is pushed to allow the handle to drive one end of the rotating rod to be inserted into the bottom of the worm gear. The handle is turned, so that the rotating rod and the worm gear can be driven to rotate by the handle, thereby further controlling the electric valve actuator, and thus realizing electric and manual drive of the electric valve actuator. When the electric is damaged, the electric valve actuator can be manually adjusted to work, and action can be taken to reduce subsequent overall maintenance, save time, and be more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the utility model in top section;

[0019] Figure 3 This is a schematic diagram of the structure of the side section of the utility model;

[0020] Figure 4 It is a schematic structural diagram of the utility model from a top view.

[0021] In the figure: 1. Box body; 2. Top cover; 3. Oil seal A; 4. Connecting plate; 5. Travel rotating part; 6. O-ring; 7. Intermediate connecting seat; 8. Electrical components; 9. Electrical control box; 10. Motor; 11. Worm gear; 12. Gear; 13. Left end cover; 14. Oil seal B; 15. Worm gear; 16. Right end cover; 17. Compression spring; 18. Latch; 19. Handle; 20. Junction box; 21. Opening indicator; 22. Travel controller; 23. Torque limiter; 24. Grounding sign. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-4 The utility model provides a technical solution: a large torque electric valve actuator, comprising: a box body 1, a top cover 2 is provided on the surface of the box body 1, a connecting plate 4 is provided on one side of the box body 1, an oil seal A3 is connected between the box body 1 and the connecting plate 4, and a travel rotating member 5 is provided inside the box body 1;

[0024] An intermediate connecting seat 7 is provided on one side of the box body 1. An O-ring 6 for sealing is connected between the intermediate connecting seat 7 and the box body 1. An electrical control box 9 is connected to one side of the intermediate connecting seat 7. An electrical component 8 is provided inside the electrical control box 9.

[0025] The motor 10 is arranged on one side of the housing 1 . A rotating mechanism is provided inside the housing 1 at the output end of the motor 10 . The gear 12 of the rotating mechanism drives the worm gear 11 and the worm member 15 to rotate.

[0026] The rotating mechanism includes a left end cover 13 connected to one side of the housing 1. An oil seal B14 is provided on the inner side of the left end cover 13. The setting of the oil seal B14 can better seal. The gear 12 is connected to the output end of the motor 10. The worm gear 11 is engaged with the gear 12. The worm member 15 is connected to the surface of the worm gear 11. The starting of the motor 10 can drive the gear 12 to rotate. Since the gear 12 and the worm gear 11 are engaged, the rotation of the gear 12 can drive the worm gear 11 to rotate, and the worm gear 11 will drive the worm member 15 to rotate inside the housing 1, and the worm member 15 is located inside the housing 1.

[0027] A handle 19 is provided at the bottom of the box body 1, and one end of the handle 19 is connected to a rotating rod. The rotating rod and the handle 19 are fixedly arranged. The rotating rod extends to the inside of the box body 1. A right end cover 16 is connected to one side of the bottom of the box body 1, and a compression spring 17 is provided on the surface of the rotating rod.

[0028] A latch 18 is provided on one side of the right end cover 16. The provision of the latch 18 can limit the movement of the rotating rod, and pulling out the latch 18 can allow the rotating rod to move.

[0029] An opening indicator 21 is provided on one side of the interior of the box body 1 , a stroke controller 22 is provided at the bottom of the opening indicator 21 , a torque limiter 23 is provided on one side of the opening indicator 21 , and a grounding sign 24 is provided on the side of the stroke controller 22 .

[0030] A junction box 20 is provided on one side of the box body 1, and the junction box 20 facilitates the connection and use of the wiring harness.

[0031] Specifically, when in use, the motor 10 is started, and the gear 12 is driven to rotate by the start of the motor 10. Since the gear 12 and the worm gear 11 are meshed, the rotation of the gear 12 can drive the worm gear 11 to rotate, and the worm gear 11 drives the worm member 15 to rotate inside the box 1, thereby completing the work of the electric valve actuator, which is more convenient to use.

[0032] If the motor 10 is damaged during the use of the electric valve actuator and cannot be used anymore, the staff will pull out the pin 18 from one side of the rotating rod to release the restriction on the rotating rod. At this time, the handle 19 is pushed to allow the handle 19 to drive the rotating rod to move, so that one end of the rotating rod is inserted into the bottom of the worm gear 15, and the handle 19 is turned. The rotating rod and the worm gear 15 can be driven to rotate by the handle 19, thereby further controlling the electric valve actuator, and realizing electric and manual drive of the electric valve actuator. When the electric is damaged, the electric valve actuator can be manually adjusted to work, and action can be taken to reduce subsequent overall maintenance, save time, and be more convenient to use.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high torque electric valve actuator, characterized in that: include: A box body (1), a top cover (2) is provided on the surface of the box body (1), a connecting plate (4) is provided on one side of the box body (1), an oil seal A (3) is connected between the box body (1) and the connecting plate (4), and a travel rotating member (5) is provided inside the box body (1); An intermediate connecting seat (7), the intermediate connecting seat (7) being arranged on one side of the box body (1), an O-ring (6) being connected between the intermediate connecting seat (7) and the box body (1), an electrical control box (9) being connected to one side of the intermediate connecting seat (7), and an electrical component (8) being arranged inside the electrical control box (9); A motor (10) is provided on one side of a housing (1); a rotating mechanism is provided inside the housing (1) at the output end of the motor (10); a gear (12) of the rotating mechanism drives a worm gear (11) and a worm member (15) to rotate.

2. A high torque electric valve actuator according to claim 1, characterized in that: The rotating mechanism comprises a left end cover (13) connected to one side of the housing (1), an oil seal B (14) is provided on the inner side of the left end cover (13), the gear (12) is connected to the output end of the motor (10), the worm gear (11) is meshed with the gear (12), the worm member (15) is connected to the surface of the worm gear (11), and the worm member (15) is located inside the housing (1).

3. The high-torque electric valve actuator according to claim 1, characterized in that: A handle (19) is provided at the bottom of the box body (1), one end of the handle (19) is connected to a rotating rod, and the rotating rod extends into the interior of the box body (1). A right end cover (16) is connected to one side of the bottom of the box body (1), and a compression spring (17) is sleeved on the surface of the rotating rod.

4. A high-torque electric valve actuator according to claim 3, characterized in that: A latch (18) is provided on one side of the right end cover (16).

5. The high-torque electric valve actuator according to claim 1, characterized in that: An opening indicator (21) is provided on one side of the interior of the box (1), a stroke controller (22) is provided at the bottom of the opening indicator (21), a torque limiter (23) is provided on one side of the opening indicator (21), and a grounding sign (24) is provided on the side of the stroke controller (22).

6. The high-torque electric valve actuator according to claim 1, characterized in that: A junction box (20) is provided on one side of the box body (1).

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