Electric heating actuator convenient for regular repair and inspection

Abstract

The utility model discloses an electric heating actuator convenient for regular maintenance, which comprises an actuator shell, an actuator cap and an actuator nut, the actuator shell is internally provided with a movable cavity, one side of the actuator shell is provided with a side maintenance cavity, and the electric heating actuator relates to the technical field of electric heating actuators. The movable cavity is formed in the actuator shell, the side maintenance cavity is formed in one side of the actuator shell, the top maintenance cavity is formed in the other side of the actuator shell, the maintenance door is movably connected into the movable cavity, and the actuator cap and the maintenance door are both movably connected with the actuator shell. Therefore, the side maintenance cavity can be displayed after the maintenance door is opened so that the actuator shell can be maintained from the side portion of the actuator shell, or the top maintenance cavity can be displayed after the actuator cap is opened so that the actuator shell can be maintained from the top of the actuator shell, the actuator does not need to be disconnected from a pipeline in the maintenance process, and maintenance operation is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of electric heating actuators, in particular to an electric heating actuator convenient for regular maintenance and inspection. Background Technique

[0002] An electric heating actuator is a type of electric actuator, usually used to control the opening and closing or adjustment of valves. They operate the valves through electric motor drive. The electric heating actuator can quickly respond to control signals and realize the opening, closing or partial opening of the valves through electric drive, so as to adjust the flow or pressure of the medium.

[0003] The patent with the publication number CN203248826U discloses a normally open electric heating actuator. Specifically, the patent discloses "The utility model provides a normally open electric heating actuator, belonging to the technical field of machinery. It solves the problem that the heat at the valve stem of the existing electric heating actuator will be transferred to the temperature package, affecting the stability of the electric heating actuator. This normally open electric heating actuator includes a base and a cylindrical shell. The shell is fixedly connected to the base and there is a cavity between the two. There is a temperature package in the cavity. There is a heating element on the temperature package. There is a cylindrical connecting cylinder on the base. The temperature package is located in the connecting cylinder and there is a spring between the temperature package and the shell. Under the elastic force of the spring, the temperature package is positioned in the connecting cylinder. There is also a push rod that can move up and down along it in the connecting cylinder. There is a limiting structure between the push rod and the shell" technical solution, achieving the technical effect of "Through this limiting structure, the push rod can move within a set stroke. When the heating element is not powered on, there is a gap between the push rod and the temperature package. The heat in the valve body of this normally open electric heating actuator will not be conducted to the temperature package, and the working stability is relatively high".

[0004] However, during the use of the existing electric heating actuator, it is necessary to first remove the electric heating actuator from the pipeline for maintenance, and it is impossible to perform maintenance on the electric heating actuator without removing the pipeline. The maintenance is inconvenient and there is room for improvement. Content of the Utility Model

[0005] The purpose of the utility model is to provide an electric heating actuator convenient for regular maintenance and inspection to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: An electric heating actuator convenient for regular maintenance and inspection, including an actuator housing, an actuator cap, and an actuator nut. An activity cavity is opened inside the actuator housing. A side maintenance cavity is opened on one side of the actuator housing. A top maintenance cavity is opened on the other side of the actuator housing. A maintenance door is movably connected inside the activity cavity. Both the actuator cap and the maintenance door are movably connected to the actuator housing.

[0007] As a further solution of the present utility model: an electric actuator convenient for regular inspection and maintenance, a sandwich layer is provided on one side of the actuator housing close to the movable cavity, a roller is rotatably connected inside the sandwich layer, and the inspection door is movably connected to the roller.

[0008] As a further solution of the present utility model: an electric actuator convenient for regular inspection and maintenance, both ends of the roller are fixedly connected with roller shafts, and one end of the roller shaft away from the roller is rotatably connected to the sandwich layer.

[0009] As a further solution of the present utility model: an electric actuator convenient for regular inspection and maintenance, a screw ring is fixedly connected to one side of the actuator cap, a screw port is provided on one side of the actuator housing, and the screw ring is screwed with the screw port.

[0010] As a further solution of the present utility model: an electric actuator convenient for regular inspection and maintenance, further including a valve ball, the valve ball is movably connected to the actuator housing, and one end of the valve ball is electrically connected to the actuator system of the actuator.

[0011] As a further solution of the present utility model: an electric actuator convenient for regular inspection and maintenance, an actuator nut is provided on one side of the actuator housing, and the actuator nut is used for screwing the actuator housing and an external pipeline together.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. Since a movable cavity is provided inside the actuator housing, a side inspection cavity is provided on one side of the actuator housing, a top inspection cavity is provided on the other side of the actuator housing, an inspection door is movably connected inside the movable cavity, and both the actuator cap and the inspection door are movably connected to the actuator housing, the side inspection cavity can be shown by opening the inspection door to inspect the actuator housing from the side of the actuator housing, or the top inspection cavity can be shown by opening the actuator cap to inspect the actuator housing from the top of the actuator housing. During the inspection process, there is no need to disconnect the actuator from the pipeline, and the inspection operation is convenient and fast;

[0014] 2. Since a sandwich layer is provided on one side of the actuator housing close to the movable cavity, a roller is rotatably connected inside the sandwich layer, and the inspection door is movably connected to the roller, the friction between the actuator housing and the inspection door can be reduced by the roller, which is convenient for the movement of the inspection door and avoids the problem that the inspection door cannot be opened during inspection, affecting the inspection of the actuator housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure in an electric actuator convenient for regular inspection and maintenance of the present utility model;

[0016] Figure 2Schematic diagram of the split structure between the actuator housing and the inspection door in an electric actuator facilitating regular inspection and maintenance according to the present utility model;

[0017] Figure 3 Schematic diagram of the structure of the actuator cap in an electric actuator facilitating regular inspection and maintenance according to the present utility model;

[0018] Figure 4 One of the schematic diagrams of the internal structure of the moving cavity in an electric actuator facilitating regular inspection and maintenance according to the present utility model;

[0019] Figure 5 Another schematic diagram of the internal structure of the moving cavity in an electric actuator facilitating regular inspection and maintenance according to the present utility model;

[0020] In the figure: 1. Actuator housing; 2. Actuator cap; 3. Actuator nut; 4. Valve ball; 5. Inspection door; 6. Side inspection cavity; 7. Top inspection cavity; 8. Spiral ring; 9. Threaded opening; 10. Moving cavity; 11. Interlayer; 12. Roller; 13. Roller shaft. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0022] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations. The embodiments of the present utility model will be described below according to its overall structure.

[0023] In an embodiment of the present utility model, an electric actuator facilitating regular inspection and repair includes an actuator housing 1, an actuator cap 2, and an actuator nut 3. An activity cavity 10 is provided inside the actuator housing 1. A side inspection cavity 6 is provided on one side of the actuator housing 1, and a top inspection cavity 7 is provided on the other side of the actuator housing 1. A inspection door 5 is movably connected inside the activity cavity 10. Both the actuator cap 2 and the inspection door 5 are movably connected to the actuator housing 1.

[0024] Since an activity cavity 10 is provided inside the actuator housing 1, a side inspection cavity 6 is provided on one side of the actuator housing 1, a top inspection cavity 7 is provided on the other side of the actuator housing 1, a inspection door 5 is movably connected inside the activity cavity 10, and both the actuator cap 2 and the inspection door 5 are movably connected to the actuator housing 1, the side inspection cavity 6 can be shown by opening the inspection door 5 to inspect the actuator housing 1 from the side of the actuator housing 1, or the top inspection cavity 7 can be shown by opening the actuator cap 2 to inspect the actuator housing 1 from the top of the actuator housing 1. During the inspection process, there is no need to disconnect the actuator from the pipeline, and the inspection operation is convenient and fast.

[0025] Another embodiment of the present utility model: An electric actuator facilitating regular inspection and repair, a sandwich layer 11 is provided on one side of the actuator housing 1 close to the activity cavity 10. A roller 12 is rotatably connected inside the sandwich layer 11. The inspection door 5 is movably connected to the roller 12.

[0026] Since a sandwich layer 11 is provided on one side of the actuator housing 1 close to the activity cavity 10, a roller 12 is rotatably connected inside the sandwich layer 11, and the inspection door 5 is movably connected to the roller 12, the friction between the actuator housing 1 and the inspection door 5 can be reduced by the roller 12, facilitating the movement of the inspection door 5 and avoiding the problem that the inspection door 5 cannot be opened during inspection, which affects the inspection of the actuator housing 1.

[0027] Another embodiment of the present utility model: An electric actuator facilitating regular inspection and repair, both ends of the roller 12 are fixedly connected with roller shafts 13. The ends of the roller shafts 13 away from the roller 12 are rotatably connected to the sandwich layer 11.

[0028] Another embodiment of the present utility model: An electric actuator facilitating regular inspection and repair, a screw ring 8 is fixedly connected to one side of the actuator cap 2. A screw port 9 is provided on one side of the actuator housing 1. The screw ring 8 is screwed to the screw port 9.

[0029] Another embodiment of the present utility model: An electric actuator facilitating regular inspection and repair, further includes a valve ball 4. The valve ball 4 is movably connected to the actuator housing 1. One end of the valve ball 4 is electrically connected to the actuator's execution system.

[0030] Other embodiments of the present utility model: An electric actuator convenient for regular inspection and repair, on one side of the actuator housing 1, there is provided an actuator nut 3, and the actuator nut 3 is used for screwing and connecting the actuator housing 1 with an external pipeline.

[0031] The working principle of the present utility model is: Since an activity cavity 10 is provided inside the actuator housing 1, a side inspection cavity 6 is provided on one side of the actuator housing 1, and a top inspection cavity 7 is provided on the other side of the actuator housing 1. An inspection door 5 is movably connected inside the activity cavity 10, and both the actuator cap 2 and the inspection door 5 are movably connected to the actuator housing 1. Therefore, after opening the inspection door 5, the side inspection cavity 6 can be shown to perform inspection on the actuator housing 1 from the side of the actuator housing 1, or after opening the actuator cap 2, the top inspection cavity 7 can be shown to perform inspection on the actuator housing 1 from the top of the actuator housing 1. During the inspection process, it is not necessary to disconnect the actuator from the pipeline, and the inspection operation is convenient and fast.

[0032] Since a sandwich layer 11 is provided on one side of the actuator housing 1 close to the activity cavity 10, a roller 12 is rotatably connected inside the sandwich layer 11, and the inspection door 5 is movably connected to the roller 12. Therefore, the friction between the actuator housing 1 and the inspection door 5 can be reduced through the roller 12, facilitating the movement of the inspection door 5 and avoiding the problem that the inspection door 5 cannot be opened during inspection, which affects the inspection of the actuator housing 1.

[0033] The above-mentioned is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. An electric actuator facilitating regular inspection and repair, characterized in that, It includes an actuator housing (1), an actuator cap (2) and an actuator nut (3). An activity cavity (10) is formed inside the actuator housing (1). A side maintenance cavity (6) is formed on one side of the actuator housing (1), and a top maintenance cavity (7) is formed on the other side of the actuator housing (1). A maintenance door (5) is movably connected inside the activity cavity (10). Both the actuator cap (2) and the maintenance door (5) are movably connected to the actuator housing (1).

2. The electrothermal actuator according to claim 1, which is convenient for regular inspection and maintenance, is characterized in that, A sandwich layer (11) is formed on one side of the actuator housing (1) close to the activity cavity (10). A roller (12) is rotatably connected inside the sandwich layer (11). The maintenance door (5) is movably connected to the roller (12).

3. The electrothermal actuator according to claim 2, characterized in that, Both ends of the roller (12) are fixedly connected with roller shafts (13). The ends of the roller shafts (13) away from the roller (12) are rotatably connected to the sandwich layer (11).

4. An electric actuator facilitating regular inspection and repair according to claim 3, characterized in that, One side of the actuator cap (2) is fixedly connected with a screw ring (8). A screw port (9) is formed on one side of the actuator housing (1). The screw ring (8) is screwed to the screw port (9).

5. An electric actuator facilitating regular inspection and repair according to claim 4, characterized in that, It further includes a valve ball (4). The valve ball (4) is movably connected to the actuator housing (1). One end of the valve ball (4) is electrically connected to the actuator's execution system.

6. An electric actuator facilitating regular inspection and repair according to claim 5, characterized in that, An actuator nut (3) is arranged on one side of the actuator housing (1). The actuator nut (3) is used for the actuator housing (1) to be screwed to an external pipeline.

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