Split type waterproof electric actuator

Abstract

The utility model discloses a split type waterproof electric actuator relates to electric actuator field, including actuator main part, the actuator main part outside is equipped with upper casing and lower casing, the lower casing bottom is equipped with connecting end and connecting wire, the connecting end outer wall is equipped with the fixed knot for the assembling of actuator main part and equipment, the fixed knot includes the locating block of setting in the connecting end bottom, the connecting end outer wall rotatable mounting has fixed hoop, the connecting end outer wall and the upper casing and lower casing between all are equipped with waterproof structure. This split type waterproof electric actuator adopts split type upper casing and lower casing design, has greatly simplified the dismounting process of actuator main part, has effectively guaranteed industrial production efficiency, forms all -round waterproof barrier through setting up waterproof structure, has improved the waterproof performance of electric actuator significantly, prolongs its life, especially applicable to humid, more water and other bad industrial environment.

Description

Technical Field

[0001] This utility model relates to the field of electric actuator technology, specifically a split-type waterproof electric actuator. Background Technology

[0002] Electric actuators are devices in the field of industrial automation that convert electrical energy into mechanical energy to control the opening and closing of equipment such as valves and dampers. As a key driving component in industrial automation systems, their performance directly affects the stability and reliability of the entire control system.

[0003] In the prior art, Chinese Patent No. CN221462847U discloses an electric actuator, which includes a housing and a transmission component disposed within the housing. The transmission component includes a transmission gear set, which includes at least three sequentially meshing transmission gears. The axes of the at least three transmission gears in the transmission gear set are not coplanar. In this electric actuator, the transmission component is installed inside the housing, and the axes of the at least three transmission gears are not coplanar. That is, the dimension of the transmission component along its axial arrangement direction is smaller than the dimension of all transmission gear axes on the same plane, making the transmission gear set more compact and reducing the space occupied by the transmission component along its axial arrangement direction.

[0004] Based on the above information, existing electric actuators mostly adopt an integrated structure, which is usually fixed to the equipment by bolts. When the actuator components malfunction and need to be repaired or replaced, disassembly and assembly are inconvenient, which not only increases the workload of maintenance, but also leads to the downtime of the entire control system, affecting production efficiency. In addition, the waterproof performance is poor and water leakage is easy to occur. Therefore, we propose a split waterproof electric actuator. Utility Model Content

[0005] The purpose of this utility model is to provide a split-type waterproof electric actuator to solve the problems mentioned in the background art. Existing electric actuators mostly adopt an integrated structure and are usually fixed to the equipment by bolts. When the actuator components malfunction and need to be repaired or replaced, disassembly and assembly are inconvenient, which not only increases the workload of maintenance, but also leads to the downtime of the entire control system, affecting production efficiency. In addition, the waterproof performance is poor and water leakage is easy to occur.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a split-type waterproof electric actuator, comprising an actuator body, an upper shell and a lower shell on the outside of the actuator body, a connecting end and a connecting wire at the bottom of the lower shell, a fixing structure for assembling the actuator body and the device on the outer wall of the connecting end, the fixing structure including a positioning block at the bottom of the connecting end, a fixing hoop rotatably mounted on the outer wall of the connecting end, and waterproof structures provided on the outer wall of the connecting end and between the upper shell and the lower shell.

[0007] Furthermore, the upper and lower housings enclose the actuator body, and the outer wall of the upper housing is threaded with an array of fixing bolts, and the upper and lower housings are connected by fixing bolts.

[0008] Furthermore, two sets of positioning blocks are symmetrically arranged, and the positioning blocks are cylindrical in shape. The length of the positioning blocks is greater than the length of the fixing hoop. The corners of the positioning blocks are beveled, and the outer wall of the receiving end of the equipment is provided with a positioning groove that matches the positioning blocks.

[0009] Furthermore, the inner wall of the fixing hoop is provided with internal threads, and the fixing hoop is threadedly connected to the receiving end of the equipment. The outer wall of the fixing hoop is provided with anti-slip ridges, and the anti-slip ridges are distributed at equal angles.

[0010] Furthermore, the waterproof structure includes a first sealing gasket and a second sealing gasket disposed on the inner wall of the fixing hoop, a sealing protrusion disposed on the top of the lower housing, and a third sealing gasket disposed on the outer wall of the sealing protrusion, a sealing groove disposed on the bottom of the upper housing, and a sealing block disposed between the connecting wire and the lower housing.

[0011] Furthermore, the top of the first sealing gasket abuts against the inner wall of the fixing hoop, and the bottom of the first sealing gasket abuts against the outer wall of the connecting end. The second sealing gasket has a T-shaped cross-section and is fitted into the bottom end of the fixing hoop. The outer wall of the second sealing gasket abuts against the receiving end of the equipment.

[0012] Furthermore, the sealing protrusion is provided along the edge of the lower housing, and the upper part of the sealing protrusion is trapezoidal. The sealing groove is adapted to the sealing protrusion, and the third sealing gasket is located between the upper housing and the lower housing.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. This split-type waterproof electric actuator adopts a split upper and lower housing design, and the two are detachably connected by an array of fixed bolts. Compared with the existing integrated electric actuator, it greatly simplifies the disassembly and assembly process of the actuator body. When the internal components of the actuator malfunction and need to be repaired or replaced, there is no need to disassemble the entire actuator. The upper and lower housings can be separated simply by unscrewing the fixed bolts, and the internal components can be operated directly. This not only greatly reduces the workload of maintenance, but also significantly shortens the downtime of the control system, effectively ensuring industrial production efficiency and solving the problems of inconvenient disassembly and assembly, high maintenance costs, and production impact of existing integrated actuators.

[0014] 2. The fixing structure formed by the combination of positioning blocks and fixing hoops enables a quick and stable connection between the actuator and the equipment. The symmetrically arranged cylindrical positioning blocks can be accurately embedded into the positioning grooves on the receiving end of the equipment, pre-positioning the actuator and preventing displacement during installation. At the same time, the fixing hoops with internal threads on the inner wall are threaded to the receiving end of the equipment, and the anti-slip protrusions distributed at equal angles on the outer wall make it convenient for operators to manually tighten the fixing hoops while ensuring a tight connection. Compared with the traditional single bolt fixing method, this fixing structure not only has higher installation efficiency, but also improves the stability of the connection between the actuator and the equipment through double limiting, reducing the problem of loosening of the connection caused by equipment vibration and ensuring the stability of the actuator operation.

[0015] 3. By incorporating a waterproof structure, the shortcomings of existing electric actuators, such as poor waterproof performance and susceptibility to water leakage, are effectively addressed. The first and second sealing gaskets on the inner wall of the fixing hoop form a double seal at the connection between the outer wall of the connecting end and the fixing hoop, and at the connection between the fixing hoop and the equipment receiving end, respectively, preventing moisture from seeping in through the connection gap between the actuator and the equipment. The sealing protrusion on the top of the lower housing matches the sealing groove on the bottom of the upper housing, and together with the third sealing gasket fitted on the outer wall of the sealing protrusion, a tight protection is formed at the joint between the upper and lower housings, preventing moisture from entering the interior through the joint gap and corroding the actuator body. In addition, the sealing block between the connecting wire and the lower housing can also prevent moisture from seeping in along the wire penetration point. The synergistic effect of multiple waterproof structures forms a comprehensive waterproof barrier, significantly improving the waterproof performance of the electric actuator and extending its service life, making it particularly suitable for harsh industrial environments such as humid and water-rich environments. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model from another perspective; Figure 3 This is a schematic diagram of the cross-sectional structure of the fixing hoop of this utility model; Figure 4 This is a schematic cross-sectional view of the upper and lower shells of this utility model; Figure 5 This is a schematic diagram of the lower housing, sealing protrusion, and third sealing gasket of this utility model; Figure 6 This is a schematic diagram of the upper shell and sealing groove structure of this utility model.

[0017] In the diagram: 1. Actuator body; 101. Connecting wire; 102. Sealing block; 2. Upper housing; 201. Sealing groove; 3. Lower housing; 301. Sealing protrusion; 4. Connecting end; 401. Positioning block; 5. Fixing clamp; 501. Anti-slip protrusion; 6. First sealing gasket; 7. Second sealing gasket; 8. Third sealing gasket; 9. Fixing bolt. Detailed Implementation

[0018] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example 1: Please refer to Figures 1-6 The present invention provides the following technical solution: a split-type waterproof electric actuator, including an actuator body 1, an upper shell 2 and a lower shell 3 on the outside of the actuator body 1, a connecting end 4 and a connecting wire 101 at the bottom of the lower shell 3, and a fixing structure for assembling the actuator body 1 and the device on the outer wall of the connecting end 4. The fixing structure includes a positioning block 401 set at the bottom of the connecting end 4 and a fixing hoop 5 rotatably installed on the outer wall of the connecting end 4.

[0020] like Figures 1-4 As shown, the upper housing 2 and the lower housing 3 enclose the actuator body 1, and the outer wall of the upper housing 2 is threaded with an array of fixing bolts 9, and the upper housing 2 and the lower housing 3 are connected by the fixing bolts 9.

[0021] like Figures 1-3 As shown, two sets of positioning blocks 401 are symmetrically arranged, and the positioning blocks 401 are cylindrical in shape. The length of the positioning blocks 401 is greater than the length of the fixing hoop 5. The corners of the positioning blocks 401 are beveled, and the outer wall of the receiving end of the equipment is provided with a positioning groove that matches the positioning blocks 401.

[0022] like Figures 1-5 As shown, the inner wall of the fixing hoop 5 is provided with an internal thread, and the fixing hoop 5 is threadedly connected to the receiving end of the equipment. The outer wall of the fixing hoop 5 is provided with anti-slip ridges 501, and the anti-slip ridges 501 are distributed at equal angles.

[0023] During the installation of the actuator and the equipment receiving end, two sets of cylindrical positioning blocks 401 symmetrically arranged at the bottom of the connecting end 4 are first used for pre-positioning. Because the corners of the positioning blocks 401 are beveled, they can be guided to accurately embed into the pre-set positioning grooves on the equipment receiving end, quickly determining the relative position of the actuator and the equipment, avoiding misalignment during the connection process, and providing a precise reference for subsequent fastening operations. Simultaneously, the length of the positioning block 401 is greater than the length of the fixing clamp 5, ensuring that after the positioning block 401 is fully inserted into the positioning groove, the fixing clamp 5 can still rotate along the outer wall of the connecting end 4 without affecting subsequent fastening steps. After pre-positioning, the fixing clamp 5 on the outer wall of the connecting end 4 is rotated to... Finally, the device is tightened. The inner wall of the fixing hoop 5 has an internal thread that matches the external thread structure of the receiving end of the equipment. The operator can use the anti-slip protrusions 501 distributed at equal angles on the outer wall of the fixing hoop 5 to increase the friction of the hand and easily rotate the fixing hoop 5, so that the fixing hoop 5 is gradually tightened along the thread of the receiving end of the equipment. As the fixing hoop 5 is screwed in, its inner wall will gradually fit against the outer wall of the connecting end 4, and at the same time, it will play an auxiliary pressing role in the cooperation between the positioning block 401 and the positioning groove. Finally, through the limiting effect of the positioning block 401 and the thread tightening of the fixing hoop 5, a tight connection between the actuator and the equipment is achieved, effectively resisting the vibration generated during the operation of the equipment, avoiding loosening of the connection, and ensuring the stable operation of the actuator.

[0024] Example 2: Please refer to Figures 1-6 Based on Embodiment 1, a waterproof structure is also disclosed, the specific structure of which is as follows: a waterproof structure is provided on the outer wall of the connecting end 4 and between the upper shell 2 and the lower shell 3. The waterproof structure includes a first sealing gasket 6 and a second sealing gasket 7 set on the inner wall of the fixing hoop 5. A sealing protrusion 301 is provided on the top of the lower shell 3, and a third sealing gasket 8 is fitted on the outer wall of the sealing protrusion 301. A sealing groove 201 is provided at the bottom of the upper shell 2. A sealing block 102 is provided between the connecting wire 101 and the lower shell 3. The top of the first sealing gasket 6 abuts against the inner wall of the fixing hoop 5, and the bottom of the first sealing gasket 6 abuts against the outer wall of the connecting end 4. The second sealing gasket 7 has a T-shaped cross section and is fitted with the bottom end of the fixing hoop 5. The outer wall of the second sealing gasket 7 abuts against the receiving end of the equipment. The sealing protrusion 301 is set along the edge of the lower shell 3, and the upper part of the sealing protrusion 301 has a trapezoidal design. The sealing groove 201 is adapted to the sealing protrusion 301. The third sealing gasket 8 is located between the upper shell 2 and the lower shell 3.

[0025] At the connection gap between the actuator and the equipment receiving end, a double seal is formed by the first sealing gasket 6 and the second sealing gasket 7 on the inner wall of the fixing hoop 5. The first sealing gasket 6 is sandwiched between the inner wall of the fixing hoop 5 and the outer wall of the connecting end 4. When the fixing hoop 5 is tightened, the inner wall of the fixing hoop 5 will squeeze the first sealing gasket 6, causing it to undergo elastic deformation and tightly fill the tiny gap between the two, preventing moisture from seeping in from the connection between the connecting end 4 and the fixing hoop 5. The second sealing gasket 7 has a T-shaped cross section and fits into the bottom end of the fixing hoop 5. Its outer wall is tightly fitted to the equipment receiving end. Under the pressure of the fixing hoop 5, the second sealing gasket 7 can seal the gap between the fixing hoop 5 and the end of the equipment receiving end, further preventing moisture from entering from the connection part.

[0026] At the joint between the upper housing 2 and the lower housing 3, a sealing protection is formed by the cooperation of the sealing protrusion 301, the sealing groove 201, and the third sealing gasket 8. The sealing protrusion 301 on the top of the lower housing 3 is set along the edge and has a trapezoidal design at the top, which is precisely matched with the sealing groove 201 at the bottom of the upper housing 2. When the upper housing 2 and the lower housing 3 are connected by the fixing bolts 9, the sealing protrusion 301 will be embedded in the sealing groove 201. At the same time, the third sealing gasket 8, which is sleeved on the outer wall of the sealing protrusion 301, will be squeezed by the upper housing 2 and the lower housing 3, and after elastic deformation, it will fill the gap. The gap between the sealing protrusion 301 and the sealing groove 201 effectively prevents moisture from entering the interior through the gaps in the housing splicing and corroding the actuator body 1. In addition, at the penetration point between the connecting wire 101 and the lower housing 3, a sealing block 102 is used to achieve a seal. The sealing block 102 is made of elastic waterproof material, which tightly wraps the connecting wire 101 and fits against the inner wall of the penetration hole of the lower housing 3, filling the gap between the wire and the housing and preventing moisture from seeping into the actuator interior along the outer wall of the wire. Finally, through the synergistic protection of multiple sealing structures, the waterproof performance of the actuator is comprehensively improved.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A split-type waterproof electric actuator, comprising an actuator body (1), wherein the actuator body (1) is provided with an upper housing (2) and a lower housing (3) on its exterior, and the lower housing (3) is provided with a connecting end (4) and a connecting wire (101) at its bottom, characterized in that: The outer wall of the connecting end (4) is provided with a fixing structure for assembling the actuator body (1) and the equipment. The fixing structure includes a positioning block (401) set at the bottom of the connecting end (4). A fixing hoop (5) is rotatably installed on the outer wall of the connecting end (4). A waterproof structure is provided between the outer wall of the connecting end (4) and between the upper shell (2) and the lower shell (3).

2. The split-type waterproof electric actuator according to claim 1, characterized in that: The upper housing (2) and the lower housing (3) enclose the actuator body (1), and the outer wall of the upper housing (2) is threaded with an array of fixing bolts (9), and the upper housing (2) and the lower housing (3) are connected by fixing bolts (9).

3. The split-type waterproof electric actuator according to claim 1, characterized in that: The positioning blocks (401) are symmetrically arranged in two sets, and the positioning blocks (401) are cylindrical in shape. The length of the positioning blocks (401) is greater than the length of the fixing hoop (5). The corners of the positioning blocks (401) are beveled, and the outer wall of the receiving end of the equipment is provided with a positioning groove that is compatible with the positioning blocks (401).

4. A split-type waterproof electric actuator according to claim 1, characterized in that: The inner wall of the fixing hoop (5) is provided with an internal thread, and the fixing hoop (5) is threadedly connected to the receiving end of the equipment. The outer wall of the fixing hoop (5) is provided with anti-slip ridges (501), and the anti-slip ridges (501) are distributed at equal angles.

5. A split-type waterproof electric actuator according to claim 1, characterized in that: The waterproof structure includes a first sealing gasket (6) and a second sealing gasket (7) set on the inner wall of the fixing hoop (5), a sealing protrusion (301) is provided on the top of the lower housing (3), and a third sealing gasket (8) is fitted on the outer wall of the sealing protrusion (301), a sealing groove (201) is provided at the bottom of the upper housing (2), and a sealing block (102) is provided between the connecting wire (101) and the lower housing (3).

6. A split-type waterproof electric actuator according to claim 5, characterized in that: The top of the first sealing gasket (6) abuts against the inner wall of the fixing hoop (5), and the bottom of the first sealing gasket (6) abuts against the outer wall of the connecting end (4). The second sealing gasket (7) has a T-shaped cross section, and the second sealing gasket (7) fits into the bottom of the fixing hoop (5), and the outer wall of the second sealing gasket (7) abuts against the receiving end of the equipment.

7. A split-type waterproof electric actuator according to claim 5, characterized in that: The sealing protrusion (301) is provided along the edge of the lower housing (3), and the upper part of the sealing protrusion (301) is trapezoidal. The sealing groove (201) is adapted to the sealing protrusion (301), and the third sealing gasket (8) is located between the upper housing (2) and the lower housing (3).

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