Valve electric actuator with locking mechanism

Abstract

The utility model relates to the technical field of actuators, in particular to a valve electric actuator with a locking mechanism, which comprises a fixing frame, and a hand wheel component is arranged on the outer side of the fixing frame. The hand wheel assembly comprises a positioning frame arranged on the outer side of the fixing frame, the positioning frame penetrates through the fixing frame, a sliding plate is slidably connected to the inner side of the positioning frame, a plurality of springs are arranged on the inner side of the positioning frame, and the two ends of each spring are fixedly connected with the side face of the positioning frame and the side face of the sliding plate respectively. Through the arrangement of the hand wheel assembly, the valve electric actuator can be manually operated conveniently after power failure, through the arrangement of a sliding plate, a rotating plate, a clamping block and a spring, a hand wheel does not need to be installed, the valve electric actuator can be directly used, the situation that a hand wheel operation mechanism is rusted and clamped due to long-term non-use, and consequently operation is difficult is reduced, and the operation efficiency is improved. And through the arrangement of an abutting rod and a microswitch, it is guaranteed that the actuator is in a power-off state in the manual operation process.

Description

TECHNICAL FIELD

[0001] The utility model relates to actuator technical field, especially valve electric actuator with locking mechanism. BACKGROUND

[0002] The actuator is a kind of driving device for driving valve action, and is widely used in automation equipment.Currently, the existing valve electric actuator includes shell and motor, transmission component and control assembly located in the shell, and the valve electric actuator is mechanically driven by electric energy as main energy source, which can convert electric energy into mechanical energy to realize the opening and closing control and adjustment of valve.

[0003] For the related technology in the above, the defects of the existing valve electric actuator are that the manual operation mechanism may be rusted and stuck after power failure, resulting in difficult operation, therefore, the utility model provides a valve electric actuator with locking mechanism. UTILITY MODEL CONTENT

[0004] The purpose of the present application is to provide a valve electric actuator with locking mechanism to solve the problems in the above background.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a valve electric actuator with locking mechanism, comprising a fixed frame, a hand wheel assembly is arranged on the outer side of the fixed frame;The hand wheel assembly comprises a positioning frame arranged on the outer side of the fixed frame, the positioning frame is arranged through the fixed frame, a sliding plate is slidably connected to the inner side of the positioning frame, a plurality of springs are arranged on the inner side of the positioning frame, and the two ends of the plurality of springs are respectively fixedly connected with the positioning frame and the side surface of the sliding plate;A rotating plate is rotatably connected to the inner side of the sliding plate, a slot hole matched with the rotating plate is formed on the outer side of the positioning frame, a clamping block is fixedly connected to the outer side of the rotating plate, and a hand wheel is fixedly connected to the outer side of the rotating plate.

[0006] Preferably, the outer side of the fixed frame is fixedly connected with a motor, the output end of the motor is arranged through the fixed frame, and the output end of the motor is fixedly connected with a rotating gear.

[0007] Preferably, a transmission gear is arranged on the inner wall side of the fixed frame, and the transmission gear is engaged with the rotating gear.

[0008] Preferably, a worm is fixedly connected to the outer side of the transmission gear, and a clamping groove matched with the clamping block is formed at one end of the worm.

[0009] Preferably, a travel switch is arranged on the inner wall bottom of the fixed frame, and a micro switch is arranged on the outer side of the travel switch.

[0010] Preferably, the outer side of the sliding plate is fixedly connected with an abutting rod, and the abutting rod penetrates the positioning frame.

[0011] Preferably, the inner wall bottom of the fixed frame is rotationally connected with a turbine, the outer side of the turbine is fixedly connected with a claw, and the claw penetrates the fixed frame.

[0012] In conclusion, the technical effects and advantages of the utility model are as follows:

[0013] In the utility model, the hand wheel assembly is arranged, so that the valve electric actuator can be manually operated after power failure, the sliding plate, the rotating plate, the clamping block and the spring are arranged, the hand wheel does not need to be installed and can be directly used, the hand wheel operation mechanism is prevented from rusting and clamping due to long-term non-use, the operation difficulty is reduced, and the actuator is ensured to be in a power failure state during manual operation through the arrangement of the abutting rod and the micro switch. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0015] Figure 1 It is a first perspective view of the axial side structure of the utility model;

[0016] Figure 2 It is a second perspective view of the axial side structure of the utility model;

[0017] Figure 3 It is a structure diagram of the abutting rod and the micro switch in the utility model;

[0018] Figure 4 It is a structure diagram of the rotating plate and the clamping block in the utility model.

[0019] In the drawings: 1, fixed frame; 2, motor; 3, positioning frame; 4, sliding plate; 5, rotating plate; 6, hand wheel; 7, claw; 8, turbine; 9, rotating gear; 10, transmission gear; 11, worm; 12, abutting rod; 13, micro switch; 14, travel switch; 15, slot hole; 16, spring; 17, clamping block. DETAILED DESCRIPTION

[0020] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0021] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be understood in a broad sense. For example, "connected" can be fixedly connected, or detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium; or can be connected internally between two elements. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present application according to the specific circumstances.

[0022] Embodiment one: reference Figures 1-4The valve electric actuator with locking mechanism shown comprises a fixed frame 1 which serves to support and fix the relevant components inside and outside the whole actuator, ensuring that the relative position relationship of each component is kept stable during operation. A hand wheel assembly is arranged on the outer side of the fixed frame 1; the hand wheel assembly comprises a positioning frame 3 arranged on the outer side of the fixed frame 1, which is penetrated through the fixed frame 1 and provides a track for the installation and movement of components such as a sliding plate 4, limiting the movement direction of the sliding plate 4 to sliding along the inner side of the positioning frame 3; the inner side of the positioning frame 3 is slidingly connected with the sliding plate 4, which can slide in the positioning frame 3 to realize the coordinated action with other components. A plurality of springs 16 are arranged on the inner side of the positioning frame 3, the two ends of the springs 16 are fixedly connected with the positioning frame 3 and the side surface of the sliding plate 4 respectively, and the springs 16 can provide elastic force for the sliding plate 4; when the sliding plate 4 is subjected to external force, the springs 16 can buffer and make the sliding plate 4 return to the initial position after the external force is removed; the inner side of the sliding plate 4 is rotatably connected with a rotating plate 5, so that the rotating plate 5 can rotate relative to the sliding plate 4, and this rotating cooperation can realize the adjustment of components such as a clamping block 17 at different positions and angles. A slot hole 15 adapted to the rotating plate 5 is formed on the outer side of the positioning frame 3, which provides space for the rotation of the rotating plate 5 and limits the range and track of the rotation of the rotating plate 5; the outer side of the rotating plate 5 is fixedly connected with the clamping block 17, which is used to cooperate with a clamping groove formed at one end of a worm 11 to realize the locking or unlocking of the rotation of the worm 11, thereby controlling the working state of the actuator. The outer side of the rotating plate 5 is fixedly connected with a hand wheel 6, and the operator can drive the rotating plate 5 to rotate by rotating the hand wheel 6, thereby conveniently controlling the position of the clamping block 17; the outer side of the fixed frame 1 is fixedly connected with a motor 2, which provides power source for the whole valve electric actuator; when the motor 2 operates, the output end thereof generates rotating power, the output end of the motor 2 is penetrated through the fixed frame 1, the output end of the motor 2 is fixedly connected with a rotating gear 9, and the rotating gear 9 transmits the rotation of the output end of the motor 2 to other components; a transmission gear 10 is arranged on the inner wall side of the fixed frame 1, which is engaged with the rotating gear 9; the rotation of the rotating gear 9 is transmitted to the transmission gear 10 through the gear engagement, realizing the transmission of power and the change of direction; the outer side of the transmission gear 10 is fixedly connected with the worm 11, which converts the rotation of the transmission gear 10 into its own rotation, and one end of the worm 11 is provided with a clamping groove adapted to the clamping block 17.

[0023] Example two: reference Figures 1-4, based on the same concept as the same as the above embodiment one, this embodiment also proposes that the inner wall bottom of the fixed frame 1 is provided with a travel switch 14, the travel switch 14 is used to detect the position of the sliding plate 4, when the sliding plate 4 moves to a certain position and touches the travel switch 14, the travel switch 14 can send an electric signal to trigger the related equipment to act, realize the control and monitoring of the equipment running state. The outside of the travel switch 14 is provided with a micro switch 13, which can power off the relay, the micro switch 13 can capture and feedback signals in time, assist precise control of equipment operation, further improve the accuracy and reliability of equipment operation control; The outer side of the sliding plate 4 is fixedly connected with the abutting rod 12, and the abutting rod 12 penetrates the positioning frame 3. The abutting rod 12 can move with the sliding plate 4, and in the moving process, the abutting rod 12 can interact with the positioning frame 3, play a guiding and positioning effect, ensure the sliding plate 4 to slide stably along the predetermined direction, avoid the sliding plate 4 to appear deviation, shaking and other unstable conditions in the moving process, ensure the stability of equipment operation; The inner wall bottom of the fixed frame 1 is rotatably connected with the turbine 8, and the turbine 8 can be driven to rotate in the fixed frame 1. The outer side of the turbine 8 is fixedly connected with the claw 7, and the claw 7 penetrates the fixed frame 1, when the turbine 8 rotates, the claw 7 rotates synchronously.

[0024] The utility model works as follows: the control motor 2 drives the rotating gear 9 to rotate, drives the turbine 8 and the claw 7 to rotate through the transmission gear 10 and the worm 11, realizes the opening and closing of the valve, if power failure occurs, the sliding plate 4 drives the abutting rod 12 to move and abuts against the micro switch 13, ensures that the actuator is powered off, the clamping block 17 is clamped in the clamping groove in the worm 11, the hand wheel 6 drives the rotating plate 5, the clamping block 17 and the worm 11 to rotate, realizes the safe rotation of the turbine 8 and the claw 7, after power is turned on, the hand wheel 6 is loosened, the sliding plate 4 is reset under the action of the spring 16, the clamping of the worm 11 is released, and the abutting rod 12 and the micro switch 13 are separated, and the actuator is powered on.

[0025] Finally, it should be pointed out that: the above-mentioned is only the preferred embodiment of the utility model, and is not used to limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical scheme recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model, should be included in the protection scope of the utility model.

Claims

1. A valve electric actuator with locking mechanism comprising a stationary frame (1), characterized in that: The outer side of the fixed frame (1) is provided with a hand wheel assembly; The hand wheel assembly comprises a positioning frame (3) provided on the outer side of the fixed frame (1), the positioning frame (3) penetrates the fixed frame (1), the inner side of the positioning frame (3) is slidably connected with a sliding plate (4), the inner side of the positioning frame (3) is provided with a plurality of springs (16), the two ends of the plurality of springs (16) are respectively fixedly connected with the side surface of the positioning frame (3) and the sliding plate (4), the inner side of the sliding plate (4) is rotatably connected with a rotating plate (5), the outer side of the positioning frame (3) is provided with a slot hole (15) matched with the rotating plate (5), the outer side of the rotating plate (5) is fixedly connected with a clamping block (17), and the outer side of the rotating plate (5) is fixedly connected with a hand wheel (6).

2. A valve electric actuator with a locking mechanism according to claim 1, characterized in that: The outer side of the fixed frame (1) is fixedly connected with a motor (2), the output end of the motor (2) penetrates the fixed frame (1), and the output end of the motor (2) is fixedly connected with a rotating gear (9).

3. A valve electric actuator with a locking mechanism according to claim 2, characterized in that: The inner wall side of the fixed frame (1) is provided with a transmission gear (10), and the transmission gear (10) is engaged with the rotating gear (9).

4. The valve electric actuator with locking mechanism according to claim 3, characterized in that: The outer side of the transmission gear (10) is fixedly connected with a worm (11), and one end of the worm (11) is provided with a clamping groove matched with the clamping block (17).

5. A valve electric actuator with a locking mechanism according to claim 4, characterized in that: The inner wall bottom of the fixed frame (1) is provided with a travel switch (14), and the outer side of the travel switch (14) is provided with a micro switch (13).

6. The valve electric actuator with locking mechanism according to claim 1, characterized in that: The outer side of the sliding plate (4) is fixedly connected with an abutting rod (12), and the abutting rod (12) penetrates the positioning frame (3).

7. A valve electric actuator with a locking mechanism according to claim 6, characterized in that: The inner wall bottom of the fixed frame (1) is rotatably connected with a turbine (8), the outer side of the turbine (8) is fixedly connected with a clamping jaw (7), and the clamping jaw (7) penetrates the fixed frame (1).

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