Dismounting device for airlock of production equipment
By designing a shut-off fan disassembly device that includes a snap-fit bracket and a locking post, the problem of inconvenient disassembly in narrow locations is solved, enabling rapid disassembly and assembly of the shut-off fan body, improving maintenance efficiency and reducing labor intensity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING LIHONG FINE CHEM
- Filing Date
- 2025-04-28
- Publication Date
- 2026-04-21
AI Technical Summary
The narrow installation space of the main body of the airlock at the bottom of the existing production equipment makes it inconvenient to remove bolts, reduces maintenance efficiency and increases labor intensity.
A disassembly device comprising a first connecting frame, a second connecting frame, a locking plate, and a rocker arm was designed. Through the combination structure of the snap-fit bracket and the locking post, the main body of the air shut-off fan can be quickly disassembled and assembled, avoiding complex operations in confined spaces.
It improves the efficiency of disassembling and assembling the main body of the airlock, reduces the labor intensity of the staff, and simplifies the maintenance process.
Smart Images

Figure CN224144562U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chemical equipment technology, specifically to a disassembly device for a production equipment airlock. Background Technology
[0002] The airlock fan is a key piece of equipment in pneumatic conveying systems. For positive and negative pressure conveying systems, the airlock fan can uniformly and continuously feed materials into the conveying pipeline, and is also used in pulse dust collectors and precision feeding applications. Closed-type airlock fans feature a compact structure, attractive appearance, excellent airlock performance, stable operation, uniform material discharge, light weight, and energy efficiency. They function as both material feeders and airlock fans. Due to the low rotor speed and small gap between the rotor and the inner cavity of the casing, backflow of air is effectively prevented, ensuring stable system air pressure and normal material discharge.
[0003] However, during long-term operation, the main body of the airlock inevitably experiences wear and tear, malfunctions, and other damage, thus requiring regular disassembly, maintenance, or replacement. However, most existing airlock bodies at the bottom of production equipment are installed using bolts. Because the installation space for the airlock body is relatively narrow, removing the bolts and moving the airlock body out of the production equipment during maintenance can be inconvenient, reducing maintenance efficiency and increasing the workload of workers. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model proposes a disassembly device for a production equipment airlock, which solves the technical problem mentioned in the background that most existing production equipment airlocks are installed with bolts. However, due to the narrow installation space of the airlock, it is inconvenient to remove the bolts and move the airlock out of the bottom of the production equipment during maintenance, which reduces maintenance efficiency and increases the labor intensity of workers.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a disassembly device for a production equipment airlock, used to connect the airlock body at the bottom of the equipment body, comprising:
[0006] The first connecting frame is located at the bottom of the main body of the device and has a first through hole. A C-shaped snap-fit bracket is provided on the first connecting frame.
[0007] The second connecting frame is disposed on the main body of the airlock and is snapped into the snap-fit bracket, and can communicate with the first connecting frame, and has a second through hole;
[0008] A locking plate, which can be raised and lowered, is mounted on the first connecting frame. A locking post is provided at the bottom of the locking plate, the locking post passing through the first through hole and engaging within the second through hole. The end of the locking post is provided with a bevel.
[0009] A rocker arm, hinged to the first connecting frame and connected to the locking plate via a drive assembly, converts the rotation of the rocker arm into driving the locking plate to rise and fall.
[0010] In a preferred embodiment, a receiving component is further provided at the bottom of the main body of the device, and the main body of the airlock is slidably mounted on the receiving component.
[0011] In a preferred embodiment, the receiving component includes:
[0012] A slide rail is provided at the bottom of the main body of the device; and
[0013] The support rod is provided in at least two sets and is fixedly installed on the main body of the airlock. The support rod is provided with rollers, and the rollers are slidably locked on the slide rail.
[0014] In a preferred embodiment, the drive assembly includes a drive column disposed on the rocker arm, and an L-shaped groove is provided on one side of the locking plate, wherein the drive column is slidably engaged in the L-shaped groove.
[0015] In a preferred embodiment, one end of the L-shaped groove extends vertically downward to communicate with the outside, a wedge-shaped stop is provided on the second connecting frame, and a push block is provided at the hinge of the rocker arm, the push block being able to abut against the wedge-shaped stop.
[0016] In a preferred embodiment, the inner side of the snap-fit bracket is provided with an inclined guide surface, and one side of the second connecting frame is also provided with a limiting block that can abut against the snap-fit bracket.
[0017] In a preferred embodiment, the snap-fit bracket is provided with a stop, and an elastic element is provided between the stop and the locking plate.
[0018] Compared with the prior art, the present invention has the following beneficial effects:
[0019] In its initial state, the second connecting frame is supported by the snap-fit bracket to prevent vertical displacement of the main body of the airlock after installation. The locking pins at the bottom of the locking plate engage with the second through hole, limiting the lateral position of the airlock and preventing lateral displacement. When maintenance is required, the rocker arm can be moved. During rotation, the drive assembly converts the rocker arm's rotation into lifting the locking plate, causing multiple locking pins to simultaneously disengage from the second through hole. The airlock can then be slid laterally out of the bottom of the equipment. After maintenance, the airlock can be slid laterally again, causing the second connecting frame to engage with the snap-fit bracket. During sliding, the second connecting frame pushes the locking plate upwards via the inclined surfaces of the locking pins until multiple locking pins engage with multiple second through holes simultaneously. This allows for quick installation of the airlock. The entire assembly and disassembly process eliminates the need for complex operations such as rotating bolts in confined spaces, allowing for quick assembly and disassembly of the airlock, effectively improving maintenance efficiency and reducing the workload of workers. Attached Figure Description
[0020] To more clearly illustrate the specific embodiments of this utility model, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.
[0021] Figure 1 A three-dimensional structural diagram of a disassembly device for a production equipment airlock provided by this utility model;
[0022] Figure 2 This is a schematic diagram of the structure of the first connecting frame and the second connecting frame after assembly in the disassembly device for the airlock of a production equipment according to this utility model;
[0023] Figure 3 for Figure 2 A schematic diagram of the disassembled structure;
[0024] Figure 4 This is a schematic diagram of the snap-fit bracket in the disassembly device for a production equipment airlock of the present invention;
[0025] Figure label:
[0026] 1. Equipment body; 2. First connecting frame; 3. First through hole; 4. Rocker arm; 5. Drive column; 6. Push block;
[0027] 21. Main body of the airlock fan; 22. Support rod; 23. Roller; 24. Slide rail; 25. Second connecting frame; 26. Second through hole; 27. Limiting block; 28. Wedge-shaped stop;
[0028] 31. Locking plate; 32. Locking pin; 33. Elastic element; 34. L-shaped groove;
[0029] 41. Snap-fit bracket; 42. Guide surface; 43. Stop bracket. Detailed Implementation
[0030] The present invention will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present invention and should not be construed as limiting the scope of protection of the present invention. Those skilled in the art can make some non-essential improvements and adjustments to the present invention based on the above application content.
[0031] Example:
[0032] like Figures 1 to 3 As shown, this utility model provides a disassembly device for a production equipment airlock, used to connect the airlock body 21 at the bottom of the equipment body 1. It includes a first connecting frame 2 located at the bottom of the equipment body 1, with a first through hole 3 and a C-shaped snap-fit bracket 41. A second connecting frame 25 is provided on the airlock body 21, which is snapped into the snap-fit bracket 41 and can communicate with the first connecting frame 2. The second connecting frame 25 has a second through hole 26.
[0033] In the initial state, the position of the second connecting frame 25 is longitudinally fixed by the snap-fit bracket 41, and an inclined guide surface 42 is provided on the inner side of the snap-fit bracket 41. A limiting block 27 that can abut against the snap-fit bracket 41 is also provided on one side of the second connecting frame 25. The main body of the air shut-off fan 21 can be moved laterally so that the second connecting frame 25 is snapped into the snap-fit bracket 41. The limiting block 27 limits the sliding distance of the main body of the air shut-off fan 21 to prevent it from sliding excessively. The second connecting frame 25 is guided by the setting of the guide surface 42. Even if the position of the second connecting frame 25 is longitudinally offset, it can be moved to directly below the first connecting frame 2. At the same time, the gap between the second connecting frame 25 and the first connecting frame 2 after sliding in is reduced, and the sealing effect is improved.
[0034] like Figures 2 to 4 As shown, in this embodiment, a liftable locking plate 31 is provided on the first connecting frame 2, and a locking post 32 is provided at the bottom of the locking plate 31. The locking post 32 passes through the first through hole 3 and is engaged in the second through hole 26. The end of the locking post 32 is provided with a bevel. A stop 43 is provided on the snap-fit bracket 41, and an elastic member 33 is provided between the stop 43 and the locking plate 31.
[0035] In the initial state, the second connecting frame 25 is horizontally fixed by the locking pin 32. Combined with the snap-fit bracket 41, the position of the second connecting frame 25 can be fixed in multiple directions, effectively preventing displacement of the valve body 21 during use and improving the stability of the valve body 21 during installation. The valve body 21 can be released by controlling the locking plate 31 to rise, and then the valve body 21 can be slid horizontally to move it out of the bottom of the equipment body 1 for maintenance. After maintenance, the valve body 21 can be pushed back to its original position. During the movement, the locking pin 32 is pushed up into the first through hole 3 by the inclined surface at its end. After the valve body 21 is installed in the designated position, the locking plate 31 is reset under the action of the elastic element 33, causing multiple sets of locking pins 32 to snap into the second through hole 26 again, thus completing the position fixation of the valve body 21.
[0036] like Figure 2 , 3 As shown, in this embodiment, a rocker arm 4 is hinged to the first connecting frame 2. The rocker arm 4 is connected to the locking plate 31 through a drive assembly to convert the rotation of the rocker arm 4 into the lifting and lowering of the locking plate 31. The drive assembly includes a drive column 5 disposed on the rocker arm 4. An L-shaped groove 34 is provided on one side of the locking plate 31, and the drive column 5 is slidably engaged in the L-shaped groove 34. One end of the L-shaped groove 34 extends vertically downward to communicate with the outside. A wedge-shaped stop 28 is provided on the second connecting frame 25, and a push block 6 is provided at the hinge of the rocker arm 4. The push block 6 can abut against the wedge-shaped stop 28.
[0037] In the initial state, there is a certain gap between the push block 6 and the wedge-shaped stop 28. When it is necessary to release the position fixation of the second connecting frame 25, the rocker arm 4 can be moved. During the rotation of the rocker arm 4, the locking plate 31 can be raised through the cooperation of the drive column 5 and the L-shaped groove 34, so that multiple sets of locking columns 32 can be disengaged from the second through hole 26. After the rocker arm 4 is rotated to a certain distance, the push block 6 abuts against the wedge-shaped stop 28, and then the inclined surface of the wedge-shaped stop 28 pushes the airlock body 21 to slide laterally a certain distance, so as to prevent the locking column 32 from being stuck in the second through hole 26 again after the rocker arm 4 is released. When the airlock body 21 is installed, the locking plate 31 will be pushed up a certain distance. The arrangement of the L-shaped groove 34 prevents the rocker arm 4 from moving when the locking plate 31 rises.
[0038] like Figure 1As shown, in this embodiment, a receiving component is also provided at the bottom of the main body 1 of the device, and the main body 21 of the airlock is slidably mounted on the receiving component. The receiving component includes a slide rail 24 provided at the bottom of the main body 1, and at least two sets of support rods 22 fixedly mounted on the main body 21 of the airlock. Rollers 23 are provided on the support rods 22, and the rollers 23 are slidably engaged on the slide rail 24. Through the cooperation of the slide rail 24 and the rollers 23, the sliding of the main body 21 of the airlock is made easier, and the movement of the main body 21 of the airlock can be achieved manually without the aid of equipment.
[0039] The specific usage and beneficial effects of this utility model are as follows:
[0040] In the initial state, the second connecting frame 25 is supported by the snap-fit bracket 41 to prevent the main body 21 of the air shut-off fan from shifting vertically after installation. The locking pins 32 at the bottom of the locking plate 31 are engaged in the second through hole 26, limiting the lateral position of the main body 21 and preventing lateral displacement. When maintenance of the main body 21 is required, the rocker arm 4 can be moved. During rotation, the rocker arm 4, through the drive assembly, converts its rotation into driving the locking plate 31 to rise and fall, thereby causing multiple sets of locking pins 32 to simultaneously disengage from the second through hole 26, and then the main body 21 of the air shut-off fan can be slid laterally. Once the bottom of the main body 1 of the equipment is removed, after maintenance, slide the main body 21 of the airlock fan horizontally again so that the second connecting frame 25 is inserted into the clip bracket 41. During the sliding process, the second connecting frame 25 can push the locking plate 31 up through the inclined surface of the locking column 32 until multiple sets of locking plates are simultaneously inserted into multiple sets of second through holes 26. This allows for quick installation of the main body 21 of the airlock fan. The entire disassembly and assembly process does not require complex operations such as rotating bolts in a confined space. The disassembly and assembly of the main body 21 of the airlock fan can be completed in a very short time, effectively improving maintenance efficiency and reducing the labor intensity of the staff.
[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above. Modifications or improvements can be made to this utility model, which is obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of this utility model fall within the scope of protection claimed by this utility model.
Claims
1. A disassembly device for a production equipment airlock, used to connect the airlock body (21) at the bottom of the equipment body (1), characterized in that, Including: The first connecting frame (2) is located at the bottom of the main body (1) of the device and has a first through hole (3). A C-shaped snap-fit bracket (41) is provided on the first connecting frame (2). The second connecting frame (25) is set on the main body (21) of the airlock and is locked in the clip frame (41), and can communicate with the first connecting frame (2), and has a second through hole (26). A locking plate (31) is vertically and flexibly mounted on the first connecting frame (2). A locking post (32) is provided at the bottom of the locking plate (31). The locking post (32) passes through the first through hole (3) and is engaged within the second through hole (26). An inclined surface is provided at the end of the locking post (32). A rocker arm (4) is hinged to the first connecting frame (2) and connected to the locking plate (31) via a drive assembly to convert the rotation of the rocker arm (4) into driving the locking plate (31) to rise and fall.
2. A plant deaerator dismounting device according to claim 1, characterized in that: The bottom of the main body (1) of the equipment is also provided with a receiving component, and the main body (21) of the air shut-off fan is slidably mounted on the receiving component.
3. A plant deaerator dismounting device according to claim 2, characterized in that The receiving component includes: Slide rail (24) is provided at the bottom of the main body (1) of the device; and Support rods (22) are provided in at least two sets and are fixedly installed on the main body (21) of the airlock. Rollers (23) are provided on the support rods (22) and the rollers (23) are slidably locked on the slide rail (24).
4. The apparatus according to claim 1, wherein: The drive assembly includes a drive column (5) disposed on the rocker arm (4), and an L-shaped groove (34) is provided on one side of the locking plate (31), and the drive column (5) is slidably engaged in the L-shaped groove (34).
5. A plant deaerator dismounting device according to claim 4, characterized in that: One end of the L-shaped groove (34) extends vertically downward to communicate with the outside. A wedge-shaped stop (28) is provided on the second connecting frame (25). A push block (6) is provided at the hinge of the rocker arm (4). The push block (6) can abut against the wedge-shaped stop (28).
6. A plant deaerator dismounting device according to claim 1, characterized in that: The inner side of the card holder (41) is provided with an inclined guide surface (42), and the second connecting frame (25) is also provided with a limiting block (27) that can abut against the card holder (41).
7. A plant deaerator dismounting device according to claim 1, characterized in that: The snap-fit bracket (41) is provided with a stop (43), and an elastic element (33) is provided between the stop (43) and the locking plate (31).