Explosion-proof air valve actuator

Abstract

The utility model discloses an explosion -proof air valve actuator, including upper cover, the lower extreme of upper cover is provided with angle regulation inner hexagonal column, the lower extreme of angle regulation inner hexagonal column is provided with the storage box, the upper end of storage box is provided with first oil seal, second oil seal and reversing adjustment knob, the lower extreme of storage box is provided with gear box, the upper end of gear box is provided with torque output shaft, the side wall of torque output shaft is slidably installed with third oil seal, the upper end of torque output shaft is provided with air door axle clamp executor, the lower extreme of gear box is slidably installed with fourth oil seal, the lower extreme of gear box is provided with waterproof washer, the lower extreme of waterproof washer is provided with base. The whole is carried out including by upper cover and base, and the sealing property is increased through oil seal. The utility model has the advantages of satisfying the use demand of dangerous environment, solving the shaft part sealing loophole, avoiding the security risk and equipment wear and tear.

Description

Technical Field

[0001] This utility model relates to the field of damper actuators, specifically an explosion-proof damper actuator. Background Technology

[0002] An explosion-proof damper actuator is a drive device with explosion-proof safety performance. Its core function is to control the opening, closing and angle adjustment of dampers in ventilation, air conditioning or industrial pipelines, ensuring safe operation in flammable and explosive environments and preventing sparks generated by its own circuit or mechanical operation from igniting the surrounding explosive mixture.

[0003] Existing technologies mostly use engineering plastic shells, which are completely lacking in explosion-proof function and cannot be used in environments with explosive hazardous gases, vapors or flammable dust. Utility Model Content

[0004] The purpose of this invention is to provide an explosion-proof damper actuator that meets the requirements for use in hazardous environments, solves shaft sealing leaks, avoids safety risks and equipment wear, and solves the problems in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An explosion-proof damper actuator includes a top cover, an angle-adjustable hexagonal socket at the lower end of the top cover, a storage box at the lower end of the angle-adjustable hexagonal socket, a first oil seal, a second oil seal, and a reversing adjustment knob at the upper end of the storage box, a gearbox at the lower end of the storage box, a torque output shaft at the upper end of the gearbox, a third oil seal slidably mounted on the side wall of the torque output shaft, a damper shaft clamp at the upper end of the torque output shaft, a fourth oil seal slidably mounted at the lower end of the gearbox, a waterproof gasket at the lower end of the gearbox, and a base at the lower end of the waterproof gasket.

[0007] Preferably, the lower end of the storage box is fixedly connected with a first protrusion, a second protrusion, and a third protrusion, and the upper end of the gearbox is provided with a first slot, a second slot, and a third slot, respectively. The first protrusion, the second protrusion, and the third protrusion correspond to the first slot, the second slot, and the third slot, respectively. The storage box is fixedly connected with a control board and a motor. When the storage box is powered on, the control board drives the motor, the motor drives the gears in the gearbox, and finally the torque is output by the torque output shaft.

[0008] It is worth noting that the protrusion at the bottom of the storage box corresponds to the slot at the top of the gearbox, which ensures accurate installation and positioning between the storage box and the gearbox, and ensures the relative positional accuracy between the various components. This is beneficial to improving the operational stability and reliability of the entire device. The motor is driven by the control board, the motor drives the gears in the gearbox, and finally the torque output shaft outputs torque. This layered driving method has a clear logic, which facilitates the control and adjustment of the device's power transmission, and also facilitates fault diagnosis and maintenance.

[0009] Preferably, the angle-adjusting hexagonal socket has hexagonal holes at both the top and bottom. The bottom end of the angle-adjusting hexagonal socket passes through the storage box and is inserted into the upper rotating column of the gearbox. The first oil seal and the second oil seal are slidably installed on the side walls of the angle-adjusting hexagonal socket and the reversing adjustment knob, respectively.

[0010] It is worth noting that the angle adjustment hexagonal socket has hexagonal holes at both ends, with the lower end passing through the storage box and inserting into the upper rotating column of the gearbox. This design makes angle adjustment more flexible and convenient, allowing for angle adjustment using appropriate tools through the hexagonal holes to meet different work needs.

[0011] Preferably, the torque output shaft is fixedly connected to both the upper and lower ends of the shaft. The third oil seal and the fourth oil seal are respectively fitted into the connecting columns at the upper and lower ends of the torque output shaft. The lower end of the third oil seal is in contact with the upper end of the gearbox, and the upper end of the fourth oil seal is in contact with the lower end of the gearbox.

[0012] It is worth noting that the torque output shaft is fixedly connected to both the top and bottom of the shaft. The third and fourth oil seals are respectively inserted into the connecting columns. This installation method is simple, convenient, easy to operate, and can improve installation efficiency.

[0013] Preferably, the upper end of the base has a groove, and the waterproof gasket is slidably installed on the inner wall of the groove. The upper end of the base has a circular groove, and the fourth oil seal is slidably installed on the inner wall of the circular groove.

[0014] It is worth noting that the upper end of the base has a groove and a round groove. The waterproof gasket and the fourth oil seal are slidably installed on the inner wall of the groove and the round groove, respectively. This design can effectively prevent water and other liquids from entering the device, play a good waterproof role, protect the electrical components and mechanical parts inside the device, and improve the safety and reliability of the device in humid environments.

[0015] Preferably, the side wall of the top cover is fixed with a plurality of first fixing blocks, and the side wall of the base is fixed with a plurality of second fixing blocks. The upper end of the first fixing block is provided with a first screw hole, and the upper end of the second fixing block is provided with a second screw hole. The first fixing blocks and the second fixing blocks are connected by bolts.

[0016] It is worth noting that the top cover and the base are connected by bolts through the first and second fixing blocks on the side wall. This connection method can provide sufficient connection strength to ensure that the components are tightly connected during the operation of the entire device, prevent loosening and displacement, and improve the safety and reliability of the device.

[0017] Preferably, the upper end of the damper shaft clamp is provided with a fourth slot, and multiple limiting blocks are fixed to the inner wall of the fourth slot. Multiple slots are provided on the side wall of the torque output shaft, and the multiple limiting blocks and multiple slots correspond to each other. The damper shaft clamp is slidably installed on the side wall of the torque output shaft, and the inner wall of the fourth slot is in contact with the side wall of the torque output shaft.

[0018] It is worth noting that the limiting block on the inner wall of the fourth slot of the damper shaft clamp corresponds to the slot on the side wall of the torque output shaft, and the inner wall of the fourth slot fits snugly against the side wall of the torque output shaft. This design ensures the accurate installation and positioning of the damper shaft clamp on the torque output shaft, ensuring effective torque transmission and improving the working accuracy and stability of the device.

[0019] Preferably, the top cover and base are made of aluminum alloy.

[0020] It is worth noting that aluminum alloys have advantages such as low density, high strength, and corrosion resistance. Using aluminum alloys to make the top cover and base can reduce the weight of the device while ensuring its structural strength, making it easier to handle and install. At the same time, the corrosion resistance of aluminum alloys can improve the service life of the device in different environments and reduce maintenance costs.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] 1. This utility model uses an aluminum alloy shell. Aluminum alloy itself has high strength and corrosion resistance, and can resist external impact and environmental erosion. At the same time, the joint parts are protected by waterproof gaskets to form a basic sealed barrier. From the shell material to the sealing structure, the explosion-proof foundation is improved in two ways to meet the needs of use in hazardous environments.

[0023] 2. The torque output shaft of the damper actuator has gaps due to external leakage and rotation, which can easily lead to the infiltration of explosive media or leakage of internal lubricating oil. This not only undermines the explosion-proof effect but may also cause equipment failure. The product uses a special oil seal to protect the torque output shaft. The oil seal can tightly fill the gap between the shaft and the housing, preventing external dust and gas from entering and preventing the loss of internal lubricating oil. This completely solves the problem of shaft sealing leaks and avoids safety risks and equipment wear. Attached Figure Description

[0024] Figure 1 This is an isometric schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is an exploded view of the overall structure of this utility model;

[0026] Figure 3 This is a schematic diagram of the explosion of the first protrusion of this utility model;

[0027] Figure 4 This is a schematic diagram of the groove explosion of this utility model;

[0028] Figure 5 This is a schematic diagram of the axial side of the circular groove of this utility model;

[0029] Figure 6 This is a schematic diagram of the isolating block of this utility model.

[0030] Reference numerals: 1. Top cover; 2. Angle-adjustable hexagonal socket; 3. Storage box; 4. Gearbox; 5. Waterproof gasket; 6. Base; 7. First oil seal; 8. Second oil seal; 9. Reversing adjustment knob; 10. Damper shaft clamp; 11. Third oil seal; 12. Torque output shaft; 13. Fourth oil seal; 31. First protrusion; 32. Second protrusion; 33. Third protrusion; 41. First slot; 42. Second slot; 43. Third slot; 61. Groove; 62. Circular groove; 101. Fourth slot; 102. Limiting block. Detailed Implementation

[0031] 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.

[0032] To address the issue that existing technologies often use engineering plastic casings, which lack explosion-proof capabilities and are unsuitable for use in environments with explosive gases, vapors, or flammable dust, the following technical solution is provided. Please refer to [link / reference needed]. Figure 1-6 ;

[0033] An explosion-proof damper actuator includes an upper cover 1, an angle-adjustable hexagonal socket 2 at the lower end of the upper cover 1, a storage box 3 at the lower end of the angle-adjustable hexagonal socket 2, a first oil seal 7, a second oil seal 8 and a reversing adjustment knob 9 at the upper end of the storage box 3, a gearbox 4 at the lower end of the storage box 3, a torque output shaft 12 at the upper end of the gearbox 4, a third oil seal 11 slidably mounted on the side wall of the torque output shaft 12, a damper shaft clamp 10 at the upper end of the torque output shaft 12, a fourth oil seal 13 slidably mounted at the lower end of the gearbox 4, a waterproof gasket 5 at the lower end of the gearbox 4, and a base 6 at the lower end of the waterproof gasket 5.

[0034] The lower end of the storage box 3 is fixedly connected to a first protrusion 31, a second protrusion 32, and a third protrusion 33, respectively. The upper end of the gearbox 4 is provided with a first slot 41, a second slot 42, and a third slot 43, respectively. The first protrusion 31, the second protrusion 32, and the third protrusion 33 correspond to the first slot 41, the second slot 42, and the third slot 43, respectively. A control board and a motor are fixedly connected inside the storage box 3. When the storage box 3 is powered on, the control board drives the motor, the motor drives the gears in the gearbox 4, and finally the torque output shaft 12 outputs torque. Angle adjustment internal six Both ends of the angle-adjusting hexagonal column 2 are provided with internal hexagonal holes. The lower end of the angle-adjusting hexagonal column 2 passes through the storage box 3 and is inserted into the upper rotating column of the gearbox 4. The first oil seal 7 and the second oil seal 8 are respectively slidably installed on the side walls of the angle-adjusting hexagonal column 2 and the reversing adjustment knob 9. The torque output shaft 12 is fixedly connected to the upper and lower ends with connecting columns. The third oil seal 11 and the fourth oil seal 13 are respectively fitted into the connecting columns at the upper and lower ends of the torque output shaft 12. The lower end of the third oil seal 11 is in contact with the upper end of the gearbox 4, and the upper end of the fourth oil seal 13 is in contact with the lower end of the gearbox 4.

[0035] The upper end of the base 6 has a groove 61, and the waterproof gasket 5 is slidably installed on the inner wall of the groove 61. The upper end of the base 6 has a circular groove 62, and the fourth oil seal 13 is slidably installed on the inner wall of the circular groove 62. Multiple first fixing blocks are fixedly connected to the side wall of the upper cover 1, and multiple second fixing blocks are fixedly connected to the side wall of the base 6. The upper end of the first fixing block has a first screw hole, and the upper end of the second fixing block has a second screw hole. The first fixing block and the second fixing block are connected by bolts. The upper cover 1 and the base 6 are made of aluminum alloy.

[0036] The damper shaft clamp 10 has a fourth slot 101 at its upper end. Multiple limiting blocks 102 are fixed to the inner wall of the fourth slot 101. Multiple slots are opened on the side wall of the torque output shaft 12. The multiple limiting blocks 102 and multiple slots correspond to each other. The damper shaft clamp 10 is slidably installed on the side wall of the torque output shaft 12. The inner wall of the fourth slot 101 is in contact with the side wall of the torque output shaft 12.

[0037] Working Principle: Through precise component matching and power transmission, stable control of the damper in explosive hazardous environments is achieved. The specific workflow is as follows: During assembly, the first protrusion 31, the second protrusion 32, and the third protrusion 33 at the lower end of the storage box 3 are aligned with the first slot 41, the second slot 42, and the third slot 43 at the upper end of the gearbox 4 and pressed tightly to complete the precise positioning of the two, laying the positional foundation for subsequent power transmission. A waterproof gasket 5 is embedded in the groove 61 at the upper end of the base 6, and a fourth oil seal 13 is installed in the circular groove 62. At the same time, the third oil seal 11 and the fourth oil seal 13 are respectively fitted onto the connecting columns at the upper and lower ends of the torque output shaft 12, with the third oil seal 11 fitting against the upper end of the gearbox 4 and the fourth oil seal 13 fitting against the lower end of the gearbox 4. The top cover 1 and the base 6 are connected by bolts through the screw holes of the first and second fixing blocks on the side wall, allowing the first oil seal 7 and the second oil seal 8 to respectively engage with the corresponding circular grooves 62 of the top cover 1, forming a full-dimensional sealing structure to prevent explosive gases, dust, or liquids from entering the interior, thus meeting explosion-proof protection requirements. When the device is powered on, the control board inside the storage box 3 receives control signals and drives the motor to operate. The power output of the motor is transmitted to the gearbox 4, and the meshing of the gears inside the gearbox 4 achieves power reduction and torque amplification, ultimately transmitting the power to the torque output shaft 12. The torque output shaft 12 outputs stable torque to the outside, providing a power source for damper adjustment. When the damper angle needs to be adjusted, there is no need to disassemble the top cover 1. Use an Allen wrench to insert into the upper and lower hexagonal holes of the angle adjustment hexagonal column 2, and rotate the wrench to drive the rotating column inside the gearbox 4 to rotate. Then, the rotation angle of the torque output shaft 12 is adjusted through gear transmission, ultimately achieving precise adjustment of the damper opening angle. The operation is convenient and does not damage the sealing performance of the device. By rotating the reversing adjustment knob 9 at the top of the storage box 3, the meshing relationship of the gears inside the gearbox 4 can be changed, thereby switching the rotation direction of the torque output shaft 12 and realizing the conversion of the damper opening direction. This eliminates the need to disassemble the device, simplifying the debugging process and ensuring operational safety in hazardous environments. The damper shaft clamp 10 is fitted onto the side wall of the torque output shaft 12 through the fourth slot 101 at the top. The limiting block 102 on the inner wall of the slot precisely engages with the slot on the side wall of the torque output shaft 12, and the inner wall of the slot is tightly fitted to the side wall of the output shaft. This ensures synchronous rotation of the damper shaft clamp 10 and the torque output shaft 12 while preventing relative slippage, ensuring efficient and stable torque transmission to the damper and achieving reliable opening and closing control of the damper.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. Explosion-proof air valve actuator comprising an upper cover (1), characterized in that, The lower end of the top cover (1) is provided with an angle-adjustable hexagonal socket (2), the lower end of the angle-adjustable hexagonal socket (2) is provided with a storage box (3), the upper end of the storage box (3) is provided with a first oil seal (7), a second oil seal (8) and a reversing adjustment knob (9), the lower end of the storage box (3) is provided with a gearbox (4), the upper end of the gearbox (4) is provided with a torque output shaft (12), the side wall of the torque output shaft (12) is slidably installed with a third oil seal (11), the upper end of the torque output shaft (12) is provided with a damper shaft clamp (10), the lower end of the gearbox (4) is slidably installed with a fourth oil seal (13), the lower end of the gearbox (4) is provided with a waterproof gasket (5), and the lower end of the waterproof gasket (5) is provided with a base (6).

2. The explosion-proof air valve actuator of claim 1, wherein The lower end of the storage box (3) is fixed with a first protrusion (31), a second protrusion (32) and a third protrusion (33). The upper end of the gearbox (4) is provided with a first slot (41), a second slot (42) and a third slot (43). The first protrusion (31), the second protrusion (32) and the third protrusion (33) correspond to the first slot (41), the second slot (42) and the third slot (43) respectively. The storage box (3) is fixed with a control board and a motor. When the storage box (3) is powered on, the control board drives the motor, the motor drives the gear in the gearbox (4), and finally the torque is output by the torque output shaft (12).

3. The explosion-proof air valve actuator of claim 1, wherein The angle-adjusting hexagonal socket (2) has hexagonal holes at both the top and bottom. The lower end of the angle-adjusting hexagonal socket (2) passes through the storage box (3) and is inserted into the upper rotating column of the gearbox (4). The first oil seal (7) and the second oil seal (8) are respectively slidably installed on the side walls of the angle-adjusting hexagonal socket (2) and the reversing adjustment knob (9).

4. The explosion-proof air valve actuator of claim 2, wherein, The torque output shaft (12) is fixed with connecting columns at both the top and bottom. The third oil seal (11) and the fourth oil seal (13) are respectively inserted into the connecting columns at the top and bottom of the torque output shaft (12). The lower end of the third oil seal (11) is in contact with the upper end of the gearbox (4), and the upper end of the fourth oil seal (13) is in contact with the lower end of the gearbox (4).

5. The explosion-proof air valve actuator of claim 1, wherein, The upper end of the base (6) has a groove (61), and the waterproof gasket (5) is slidably installed on the inner wall of the groove (61). The upper end of the base (6) has a circular groove (62), and the fourth oil seal (13) is slidably installed on the inner wall of the circular groove (62).

6. The explosion-proof air valve actuator of claim 5, wherein, The side wall of the top cover (1) is fixed with multiple first fixing blocks, and the side wall of the base (6) is fixed with multiple second fixing blocks. The upper end of the first fixing block is provided with a first screw hole, and the upper end of the second fixing block is provided with a second screw hole. The first fixing block and the second fixing block are connected by bolts.

7. The explosion-proof air valve actuator of claim 4, wherein, The upper end of the damper shaft clamp (10) is provided with a fourth slot (101). Multiple limiting blocks (102) are fixed to the inner wall of the fourth slot (101). Multiple slots are provided on the side wall of the torque output shaft (12). The multiple limiting blocks (102) and the multiple slots correspond to each other. The damper shaft clamp (10) is slidably installed on the side wall of the torque output shaft (12). The inner wall of the fourth slot (101) is in contact with the side wall of the torque output shaft (12).

8. The explosion-proof air valve actuator of claim 5, wherein, The upper cover (1) and the base (6) are made of aluminum alloy material.

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