Double-plate air locking valve
By using cams and swing blocks in the air lock valve to control the opening and closing time of the upper and lower baffles, the air leakage and blockage problems caused by the untimely fit of the upper and lower flips of the existing air lock valves is solved, and the smooth discharge of material is achieved.
Patent Information
- Application Number
- CN202420513680.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-15
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-03-15
AI Technical Summary
The existing air lock valves do not cooperate in time when opening and closing, which can easily lead to air leakage or material blockage, affecting normal use.
By adopting a double-plate air lock valve design, by providing a cam on the second transmission shaft, and providing a first swing block and a second swing block on the first and third transmission shafts, it makes it come into contact with the outer surface of the cam, using The cam rotation controls the opening and closing time of the upper and lower baffles to ensure timely opening and closing.
It effectively avoids air leakage and material blockage in the air lock valve, ensuring the smooth progress of the material discharge process.
Smart Images
Figure CN222277503U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of valves, and in particular relates to a double-plate air lock valve. Background Art
[0002] In the rock wool manufacturing industry, a variety of raw materials or waste cotton are used. Most of the required materials need to maintain temperature and humidity. The materials are discharged through air lock valves to prevent gas backflow in the pipeline and prevent external air from entering, which is conducive to secondary energy recovery.
[0003] The current air lock valve mainly controls the size of the valve and closes the valve by rotating the internal air lock flap when opening and closing. The material passes through the upper flap and the lower flap in turn during the unloading process. The upper and lower flaps need to work closely together to achieve smooth unloading of the material. However, the existing air lock valve often fails to open the upper and lower flaps in time when in use. If the upper and lower flaps are opened too early, air leakage may occur. If the upper and lower flaps are opened too late, material blockage may occur, affecting the normal use of the air lock valve. Utility Model Content
[0004] In view of the defects or shortcomings in the prior art, the utility model provides a double-plate air lock valve, which can open the upper flap and the lower flap in time during the material unloading process to avoid air leakage and material blockage in the air lock valve.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] An embodiment of the utility model provides a double-plate air lock valve, including a main box body, an axle box fixedly installed on one side of the main box body, a first transmission shaft, a second transmission shaft and a third transmission shaft are arranged in the axle box, one end of the second transmission shaft is fixedly connected to a cam, one end of the first transmission shaft is fixedly connected to a first swing block, one end of the second transmission shaft is fixedly connected to a second swing block, and the first swing block and the second swing block are both in contact with the outer surface of the cam.
[0007] Furthermore, an upper box body is arranged at the top of the main box body, and a lower box body is arranged at the bottom of the main box body, and both ends of the upper box body and the lower box body are opened.
[0008] Furthermore, the transmission shaft is fixed in the axle box through an axle seat, and multiple transmission shafts are arranged in parallel.
[0009] Furthermore, a drive motor is fixed to the outer side of the axle box via a bracket, and a drive shaft of the drive motor is connected to the second transmission shaft.
[0010] Furthermore, a first guide rod is arranged on the first transmission shaft, and one end of the first guide rod away from the first transmission shaft is fixedly connected to a lower baffle.
[0011] Furthermore, the lower baffle covers the bottom of the lower box body.
[0012] Furthermore, the first swing block is fixedly connected to the first connecting rod.
[0013] Furthermore, a second guide rod is provided on the third transmission shaft, and an end of the second guide rod away from the third transmission shaft is fixedly connected to an upper baffle.
[0014] Furthermore, the upper baffle covers the bottom of the upper box body.
[0015] Furthermore, the second swing block is fixedly connected to the third connecting rod.
[0016] Compared with the prior art, the beneficial effects of the present invention are:
[0017] The utility model arranges a cam on the second transmission shaft, and arranges a first swing block and a second swing block on the first transmission shaft and the third transmission shaft respectively, and the first swing block and the second swing block are both in contact with the outer surface of the cam, and the rotation of the cam is used to control the swing of the first swing block and the second swing block, thereby controlling the opening and closing time of the upper baffle and the lower baffle, and avoiding air leakage and material blockage in the air lock valve. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a front structural cross-sectional view of an embodiment of the utility model;
[0019] Figure 2 It is a side structural sectional view in an embodiment of the utility model;
[0020] Among them, 1. main box body; 2. upper box body; 3. lower box body; 4. driving motor; 5. axle box; 6. first guide rod; 7. second guide rod; 8. second swing block; 9. cam; 10. first swing block; 11. upper baffle plate; 12. lower baffle plate; 13. first transmission shaft; 14. second transmission shaft; 15. axle seat. DETAILED DESCRIPTION
[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0022] A typical implementation of the present utility model is as follows Figure 1 and Figure 2As shown, a double-plate air lock valve comprises a main box body 1, an upper box body 2 is arranged on the top of the main box body 1, a lower box body 3 is arranged on the bottom of the main box body 1, both ends of the upper box body 2 and the lower box body 3 are opened, an axle box 5 is fixedly installed on one side of the main box body 1, a plurality of transmission shafts are arranged side by side in the axle box 5, the transmission shafts are fixed in the axle box 5 through an axle seat 15, and the plurality of transmission shafts are arranged in parallel, the plurality of transmission shafts include a first transmission shaft 13, a second transmission shaft 14 and a third transmission shaft, a driving motor 4 is fixed to the outer side of the axle box 5 through a bracket, the driving shaft of the driving motor 4 is connected to the second transmission shaft 14, so that the driving motor 4 is used to drive the second transmission shaft 14 to rotate, and a cam 9 is arranged at one end of the second transmission shaft 14 away from the driving motor 4, the cam 9 is fixedly connected to the second transmission shaft 14, and the cam 9 is driven to rotate through the second rotating shaft 14.
[0023] A first swing block 10 is provided at one end of the first transmission shaft 13 close to the cam 9, and a second swing block 8 is provided at a section of the third transmission shaft close to the cam 9. The first swing block 10 and the second swing block 8 are both in contact with the outer surface of the cam 9. When the cam 9 rotates, it can drive the first swing block 10 and the second swing block 8 to swing, thereby driving the first transmission shaft 13 and the third transmission shaft to rotate. A first guide rod 6 is provided on the first transmission shaft 13, and a lower baffle 12 is fixedly connected to one end of the first guide rod 6 away from the first transmission shaft 13. The lower baffle 12 can cover the bottom of the lower box body 3, thereby closing the bottom of the lower box body 3. When the first swing block 10 swings with the cam 9, the first transmission shaft 13 rotates under the action of the first swing block 10, so that the lower baffle 12 can be separated from the bottom of the lower box body 3, thereby opening the bottom of the lower box body 3.
[0024] The first swing block 10 is fixedly connected to the first transmission shaft 13. When the cam 9 leaves the first swing block 10, the first swing block 10 drives the first transmission shaft 13 to rotate in the opposite direction under the action of its own gravity, so that the lower baffle 12 covers the bottom of the lower box body 3 again.
[0025] A second guide rod 7 is provided on the third transmission shaft, and an upper baffle 11 is fixedly connected to one end of the second guide rod 7 away from the third transmission shaft. The upper baffle 11 can cover the bottom of the upper box body 2, thereby closing the bottom of the upper box body 2. When the second swing block 8 swings with the cam 9, the third transmission shaft rotates under the action of the second swing block 8, so that the upper baffle 11 can be separated from the bottom of the upper box body 2, thereby opening the bottom of the upper box body 2.
[0026] The second swing block 8 is fixedly connected to the third transmission shaft. When the cam 9 leaves the second swing block 8, the second swing block 8 drives the third transmission shaft to rotate in the opposite direction under the action of its own gravity, so that the upper baffle 11 covers the bottom of the upper box body 2 again.
[0027] How it works
[0028] The upper and lower baffles divide the inner part of the box into three parts, namely the upper feeding space, the middle storage cavity and the lower discharge space. The upper part is connected to the external feeding channel. The middle upper and lower baffles are closed to form a closed cavity, and the lower part is connected to the external discharge channel. The material is temporarily stored in the feeding space. After receiving the unloading signal (which can be an intermittent unloading signal or a continuous unloading signal), the motor drives the main shaft to rotate, and the upper baffle is adjusted to open and close through the cam and the first swing block. The material enters the middle storage cavity, and the motor main shaft continues to rotate, and the lower baffle is adjusted to open and close through the cam and the second swing block to complete a unloading action.
[0029] When continuous unloading is carried out, the motor rotates continuously, and the unloading conveying speed is adjusted by adjusting the motor frequency.
[0030] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A double-plate air lock valve, characterized in that: It includes a main box body, one side of which is fixedly installed with an axle box, the axle box is provided with a first transmission shaft, a second transmission shaft and a third transmission shaft, one end of the second transmission shaft is fixedly connected to a cam, one end of the first transmission shaft is fixedly connected to a first swing block, one end of the second transmission shaft is fixedly connected to a second swing block, and the first swing block and the second swing block are both in contact with the outer surface of the cam.
2. A double-plate air lock valve as claimed in claim 1, characterized in that: An upper box body is arranged at the top of the main box body, and a lower box body is arranged at the bottom of the main box body. Both ends of the upper box body and the lower box body are opened.
3. A double-plate air lock valve as claimed in claim 1, characterized in that: The transmission shaft is fixed in the axle box through an axle seat, and multiple transmission shafts are arranged in parallel.
4. A double-plate air lock valve as claimed in claim 1, characterized in that: A driving motor is fixed to the outer side of the axle box via a bracket, and a driving shaft of the driving motor is connected to the second transmission shaft.
5. A double-plate air lock valve as claimed in claim 1, characterized in that: A first guide rod is arranged on the first transmission shaft, and a lower baffle is fixedly connected to one end of the first guide rod away from the first transmission shaft.
6. A double-plate air lock valve as claimed in claim 5, characterized in that: The lower baffle covers the bottom of the lower box body.
7. A double-plate air lock valve as claimed in claim 1, characterized in that: The first swing block is fixedly connected to the first connecting rod.
8. A double-plate air lock valve as claimed in claim 1, characterized in that: A second guide rod is arranged on the third transmission shaft, and an end of the second guide rod away from the third transmission shaft is fixedly connected to an upper baffle.
9. A double-plate air lock valve as claimed in claim 8, characterized in that: The upper baffle covers the bottom of the upper box body.
10. A double-plate air lock valve as claimed in claim 1, characterized in that: The second swing block is fixedly connected to the third connecting rod.