Electric actuator with good corrosion resistance
By designing a protective enclosure structure and implementing environmental monitoring, the problem of electric actuators being easily damaged in corrosive environments has been solved, achieving efficient protection and stable operation of electric actuators.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MOLFOR AUTOMATIC (WUXI) CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-04-28
AI Technical Summary
Existing electric actuators are susceptible to corrosion in harsh environments, affecting their normal use and lifespan.
An electric actuator with a protective housing was designed. The protective housing consists of a base plate and a housing shell, and is equipped with a side stop, a flip cover and a shield. It has built-in temperature and humidity probes to achieve all-round protection and environmental monitoring of the electric actuator.
It improves the corrosion resistance of electric actuators, extends their service life, ensures stable operation in corrosive environments, and facilitates inspection and maintenance.
Smart Images

Figure CN224178419U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric actuator technology, and in particular to an electric actuator with good corrosion resistance. Background Technology
[0002] Electric actuators are devices that convert electrical signals into mechanical motion and are widely used in industrial automation control systems. They can be used to control the position or speed of valves, dampers, baffles, and other mechanisms in various equipment and systems. Electric actuators are mainly driven by a motor, using a gearbox to reduce speed and increase torque, and then generating linear or rotary motion through the output shaft.
[0003] Regarding the aforementioned technologies, it has been found that most existing electric actuators are directly installed outside the operating unit. Since the electric actuators are directly exposed to the external environment, they are easily affected by moisture in the air. When the working environment is harsh, corrosive substances and gases in the air will further affect the operation of the electric actuators and affect their normal use. Utility Model Content
[0004] This invention solves the problems in related technologies and proposes an electric actuator with good corrosion resistance.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] An electric actuator with good corrosion resistance includes a protective housing and an electric actuator body installed in the protective housing. The protective housing includes a base plate and a housing shell. The housing shell is installed on the upper end face of the base plate and is integrally formed with the base plate. A side stop seat that mates with the housing shell is fixedly installed on the upper end face of the base plate. An inner cover is fixedly installed on the inner side face of the side stop seat, and a flip-open cover is also installed on the upper end face of the side stop seat. The flip cover is sealed to the housing shell. A shielding shell is also provided on the upper end face of the base plate, and the shielding shell is longitudinally slidably connected to the base plate.
[0007] As a preferred embodiment, the housing includes a front shell plate, a side frame plate, and a rear shell plate. The front shell plate and the rear shell plate are respectively installed at the front and rear ends of the side frame plate, and the front shell plate, the side frame plate, and the rear shell plate are integrally formed.
[0008] As a preferred embodiment, the side bracket includes a main board and a vertical plate for mounting the flip cover. The vertical plate is mounted on the upper surface of the main board and is integrally formed with the main board.
[0009] As a preferred embodiment, the flip cover includes a cover plate and a wrench plate, the wrench plate is fixedly installed on one side of the cover plate, and a storage groove for placing the wrench plate is provided on the upper surface of the side frame plate.
[0010] As a preferred embodiment, the upper end face of the base plate is symmetrically equipped with two sets of guide frames for positioning and installing the shielding shell. The guide frames are vertically fixed on the base plate, and the head of the guide frame is also equipped with a connecting plate that connects to the shell.
[0011] As a preferred embodiment, the shielding shell includes a sealing shell and a handle. The two sides of the sealing shell are slidably mounted on the guide frame, and the handle is fixedly mounted on the upper end face of the sealing shell.
[0012] As a preferred embodiment, a temperature probe and a humidity probe are fixedly installed on the lower end face of the inner cover, and a display screen connected to the temperature probe and humidity probe is installed on the front end face of the front shell plate.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: By designing the protective box as a structure in which the base plate and the box shell cooperate, and installing a side stop and a flip-top structure on the box shell, and by installing a sliding and openable shield on the base plate, this can provide good protection for the electric actuator body during actual use. When maintenance is required, the top and sides of the electric actuator body can be inspected by opening the flip-top and the shield, without exposing the entire body. This greatly improves the corrosion resistance of the electric actuator. At the same time, with the addition of temperature and humidity monitoring devices, the electric actuator can be ensured to work in a suitable environment, thereby extending the service life of the electric actuator and improving its working stability and reliability. It is suitable for various industrial sites with corrosive environments. Attached Figure Description
[0014] Figure 1 This is an exploded structural diagram of the overall structure of this utility model;
[0015] Figure 2 This is a perspective view of the overall structure of this utility model;
[0016] Figure 3 This is a perspective view of the protective box in an embodiment of this utility model;
[0017] Figure 4 This is a perspective view of the side stop, flip cover, and inner cover in combination in an embodiment of this utility model;
[0018] Figure 5 yes Figure 4 A front view of the device shown;
[0019] Figure 6 This is a perspective view of the shielding shell in an embodiment of this utility model.
[0020] In the diagram: 1. Protective box; 10. Electric actuator body; 11. Base plate; 111. Guide frame; 112. Connecting plate; 12. Housing; 121. Front shell plate; 122. Side frame plate; 123. Rear shell plate; 124. Storage slot; 125. Display screen; 2. Side stop; 21. Main board; 22. Vertical plate; 3. Flip cover; 31. Cover plate; 32. Wrench plate; 4. Shielding shell; 41. Sealing shell; 42. Handle; 5. Inner cover; 51. Temperature probe; 52. Humidity probe. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0022] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0023] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.
[0024] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.
[0025] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0026] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.
[0027] Reference Figure 1 , Figure 2 and Figure 3As shown, an electric actuator with good corrosion resistance includes a protective housing 1 and an electric actuator body 10 installed in the protective housing 1. The protective housing 1 includes a base plate 11 and a housing 12. The housing 12 is installed on the upper end face of the base plate 11 and is integrally formed with the base plate 11. A side stop 2 that mates with the housing 12 is fixedly installed on the upper end face of the base plate 11. An inner cover 5 is fixedly installed on the inner side of the side stop 2, and a flip-open cover 3 is also installed on the upper end face of the side stop 2. The flip cover 3 is sealed to the housing 12. A shielding shell 4 is also provided on the upper end face of the base plate 11 and is longitudinally slidably connected to the base plate 11. By setting up the protective housing 1 and the housing 12 being integrally formed with the base plate 11, the overall structural strength and sealing performance of the protective housing 1 are enhanced, reducing the possibility of external corrosive substances entering. When in use, the side stop 2, the flip cover 3 and the shield 4 work together to further improve the protection performance. The flip cover 3 can be flipped open to facilitate inspection and maintenance of the upper part of the electric actuator body 10, while the shield 4 is longitudinally slidably connected to facilitate flexible sliding opening to inspect and maintain the side of the electric actuator body 10.
[0028] Reference Figure 2 and Figure 3 As shown, the housing 12 includes a front shell plate 121, a side frame plate 122, and a rear shell plate 123. The front shell plate 121 and the rear shell plate 123 are respectively installed at the front and rear ends of the side frame plate 122, and the front shell plate 121, the side frame plate 122, and the rear shell plate 123 are integrally formed. The housing 12 adopts an integrally formed structure of the front shell plate 121, the side frame plate 122, and the rear shell plate 123, which makes the structure of the housing 12 more stable, reduces the gaps at the joints, and further improves the sealing performance and corrosion resistance of the protective housing 1. In addition, the side frame plate 122 has a side groove extending from the side of the electric actuator body 10, which makes it easy to inspect the side of the electric actuator body 10 without opening the housing 12.
[0029] Reference Figure 4 As shown, the side stop 2 includes a main board 21 and a vertical plate 22 for mounting the flip cover 3. The vertical plate 22 is mounted on the upper surface of the main board 21, and the vertical plate 22 and the main board 21 are integrally formed. By designing the side stop 2 as an integral form of the main board 21 and the vertical plate 22, the structural strength of the side stop 2 is ensured, providing stable support for the installation of the flip cover 3. At the same time, it also helps to improve the overall protective performance of the protective box 1. The main board 21 is positioned by the inner cover 5, ensuring that the inspection cover part at the upper end of the electric actuator body 10 can extend through the inner cover 5.
[0030] Reference Figure 4As shown, the flip cover 3 includes a cover plate 31 and a wrench plate 32. The wrench plate 32 is fixedly installed on one side of the cover plate 31, and a storage groove 124 for placing the wrench plate 32 is provided on the upper surface of the side frame plate 122. By designing the flip cover 3 into a structure in which the cover plate 31 and the wrench plate 32 cooperate, it ensures that the operator can easily flip and open the cover plate 31 using the wrench plate 32 during use. The storage groove 124 allows the wrench plate 32 to be stored in it when the flip cover 3 is closed, ensuring the flatness of the surface of the protective box 1, reducing the accumulation of external substances, and improving corrosion resistance.
[0031] Reference Figure 2 and Figure 6 As shown, two sets of guide frames 111 for positioning and installing the shield 4 are symmetrically installed on the upper end face of the base plate 11. The guide frames 111 are vertically fixed on the base plate 11, and the head of the guide frame 111 is also equipped with a connecting plate 112 that connects to the housing 12. The guide frames 111 on the base plate 11 provide positioning and guidance for the installation of the shield 4, enabling the shield 4 to slide stably longitudinally. The connecting plate 112 connects the guide frame 111 to the housing 12, enhancing the stability of the entire protective structure. The shield 4 includes a sealing shield 41 and a handle 42. The two sides of the sealing shield 41 are slidably installed on the guide frames 111, and the handle 42 is fixedly installed on the upper end face of the sealing shield 41. The design of the sealing shield 41 and the handle 42 of the shield 4 makes it convenient for operators to slide the sealing shield 41 through the handle 42, and makes it easy to lift and disassemble the shield 4 directly during maintenance. The sealing baffle 41 is slidably mounted on the guide frame 111 on both sides, ensuring smooth sliding and sealing.
[0032] Reference Figure 4 and Figure 5 As shown, a temperature probe 51 and a humidity probe 52 are fixedly installed on the lower end face of the inner cover 5, and a display screen 125 connected to the temperature probe 51 and humidity probe 52 is installed on the front end face of the front shell 121. The temperature probe 51 and humidity probe 52 on the lower end face of the inner cover 5 can monitor the temperature and humidity inside the protective box 1 in real time and display the data on the display screen 125. Operators can take appropriate measures in a timely manner based on the displayed data, such as adjusting ventilation and dehumidification, to ensure that the electric actuator works in a suitable environment, further improving the corrosion resistance and service life of the electric actuator.
[0033] In this embodiment, during actual use, the cover plate 31 can be easily flipped open using the wrench 32, facilitating inspection and maintenance of the top of the electric actuator body 10. When the flip cover 3 is closed, the wrench 32 can be placed in the storage slot 124 for quick shielding and protection of the upper part. When it is necessary to inspect the side of the electric actuator body 10, the operator can slide the sealing cover 41 longitudinally using the handle 42. The temperature probe 51 and humidity probe 52 monitor the temperature and humidity inside the protective box 1 in real time and transmit the data to the display screen 125 for display, allowing the operator to take appropriate measures based on the displayed data.
[0034] The above are preferred embodiments of this utility model. Those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above. Any obvious improvements, substitutions or modifications made by those skilled in the art based on this utility model shall fall within the protection scope of this utility model.
Claims
1. An electric actuator with good corrosion resistance, comprising a protective housing (1) and an electric actuator body (10) installed in the protective housing (1), characterized in that: The protective box (1) includes a base plate (11) and a box shell (12). The box shell (12) is installed on the upper surface of the base plate (11), and the box shell (12) and the base plate (11) are integrally formed. A side stop (2) that cooperates with the box shell (12) is fixedly installed on the upper surface of the base plate (11). An inner cover (5) is fixedly installed on the inner side of the side stop (2), and a flip-open cover (3) that can be flipped is also installed on the upper surface of the side stop (2). The flip cover (3) is sealed to the box shell (12). A shielding shell (4) is also provided on the upper surface of the base plate (11). The shielding shell (4) is longitudinally slidably connected to the base plate (11).
2. The electric actuator with good corrosion resistance according to claim 1, characterized in that: The shell (12) includes a front shell plate (121), a side frame plate (122) and a rear shell plate (123). The front shell plate (121) and the rear shell plate (123) are respectively installed at the front and rear ends of the side frame plate (122), and the front shell plate (121), the side frame plate (122) and the rear shell plate (123) are integrally formed.
3. The electric actuator with good corrosion resistance according to claim 2, characterized in that: The side stop (2) includes a main board (21) and a vertical plate (22) for mounting the flip cover (3). The vertical plate (22) is mounted on the upper surface of the main board (21) and is integrally formed with the main board (21).
4. The electric actuator with good corrosion resistance according to claim 3, characterized in that: The flip cover (3) includes a cover plate (31) and a wrench plate (32). The wrench plate (32) is fixedly installed on one side of the cover plate (31). The upper surface of the side frame plate (122) is provided with a storage groove (124) for placing the wrench plate (32).
5. The electric actuator with good corrosion resistance according to claim 4, characterized in that: Two sets of guide frames (111) for positioning and mounting the shielding shell (4) are symmetrically installed on the upper end face of the seat plate (11). The guide frames (111) are vertically fixed on the seat plate (11), and the head of the guide frame (111) is also equipped with a connecting plate (112) connected to the box shell (12).
6. The electric actuator with good corrosion resistance according to claim 5, characterized in that: The shielding shell (4) includes a sealing shell (41) and a handle (42). The two sides of the sealing shell (41) are slidably mounted on the guide frame (111), and the handle (42) is fixedly mounted on the upper end face of the sealing shell (41).
7. The electric actuator with good corrosion resistance according to claim 6, characterized in that: A temperature probe (51) and a humidity probe (52) are fixedly installed on the lower end face of the inner cover (5), and a display screen (125) connected to the temperature probe (51) and the humidity probe (52) is installed on the front end face of the front shell (121).