Ultra-thin electric double-open slide plate gate

The threaded rod connection structure of the ultra-thin electric double-leaf slide gate solves the problem of tooth breakage in traditional single-leaf slide gates, achieving stable operation and high reliability of the equipment, and reducing maintenance complexity and failure rate.

CN223498732UActive Publication Date: 2025-10-31GUANGDONG YUEDIAN DAPU POWER GENERATION CO LTD +1
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Patent Information

Application Number
CN202423292760.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-10-31
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

Traditional single-opening slide gates are mostly connected by a rack and pinion mechanism. When the gate is under stress, the rack and pinion may come loose, causing the equipment to fail to open properly and affecting the coal supply to the boiler.

Method used

The device adopts an ultra-thin electric double-leaf sliding door, which uses a threaded rod and a threaded connection between the sliding plate and the screw rod. The screw sleeve is driven to rotate by the actuator, so as to achieve stable opening and closing of the sliding plate and avoid the problem of tooth dislodgement in the rack and pinion connection.

Benefits of technology

It improves the reliability and stability of equipment operation, reduces the failure rate, makes maintenance more convenient, avoids the complexity and frequent maintenance of rack and pinion connections, and ensures stable operation of equipment under normal load.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of plugboard doors, in particular to an ultra-thin electric double-open plugboard door which comprises a protective plate, a vertically-through circular opening is formed in the center of the protective plate, two symmetrically-arranged plugboards are movably connected into the protective plate and used for opening and closing the circular opening of the protective plate, and the circular opening is formed in the protective plate. The opposite faces of the two inserting plates are connected with rotatable threaded rods respectively, the two sides of the protection plate are rotationally connected with threaded sleeves respectively, the two threaded rods correspondingly penetrate through the threaded sleeves respectively, the two threaded rods are in threaded connection with the corresponding threaded sleeves respectively, and actuators are fixedly installed at the two ends of the protection plate respectively. The utility model aims to solve the problem that the tooth disengagement phenomenon is easy to occur after the door plate is stressed due to the fact that most traditional single-open slide plate doors are in rack type linkage.
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Description

Technical Field

[0001] This utility model relates to the field of slide door technology, specifically an ultra-thin electric double slide door. Background Technology

[0002] At the raw coal hopper outlet of a thermal power plant, the gate valve is used to control the flow of raw coal to the coal feeder. During operation, it can be opened to allow raw coal to pass through, or closed to cut off the coal flow. It can be operated manually, electrically, or pneumatically, and can effectively cut off raw coal to meet the coal conveying process requirements of thermal power generation.

[0003] The raw coal hopper outlet of existing thermal power plants generally adopts a single-opening slide gate with a square top and round bottom. Traditional single-opening slide gates are mostly connected by a rack and pinion mechanism. When the gate is under stress, the teeth are prone to come loose, which prevents the slide gate from opening normally and affects the coal supply to the boiler. Utility Model Content

[0004] The purpose of this utility model is to provide an ultra-thin electric double-leaf sliding door to solve the problem that traditional single-leaf sliding doors are mostly connected by a rack and pinion mechanism, and the door panel is prone to tooth breakage when subjected to force.

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

[0006] An ultra-thin electric double-leaf sliding door includes a protective plate with a circular opening running vertically through its center. Two symmetrically arranged inserts are movably connected inside the protective plate. These inserts are used to open and close the circular opening. Rotatable threaded rods are connected to opposite sides of the two inserts. Threaded sleeves are rotatably connected to both sides of the protective plate. The two threaded rods pass through corresponding threaded sleeves, and both are threadedly connected to their respective sleeves. Actuators are fixedly installed at both ends of the protective plate, and these actuators drive the two threaded sleeves to rotate.

[0007] Preferably, protective sleeves are provided on both sides of the protective plate, which are used to protect and shield the protruding threaded rod.

[0008] Preferably, each of the two insert plates has a second connector fixedly connected to its opposite side, and the two second connectors are rotatably connected to the threaded rod.

[0009] Preferably, each of the two insert plates has a first connector fixedly connected to one of its opposite ends, and each of the first connectors has an indicator rod fixedly connected to its surface. The two indicator rods respectively move through both sides of the guard plate.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. The axial thrust generated by the rotation of the threaded rod drives the opening and closing of the slide plate. The connection between the threaded rod and the slide plate is more stable because it does not rely on tooth meshing but on mechanical transmission through the thread. Under normal working load, it will not experience tooth slippage like a rack and pinion connection, thus improving the reliability of equipment operation. Rack and pinion connections are prone to tooth slippage, requiring frequent checks on the meshing of the gears and rack. Once tooth slippage occurs, maintenance is relatively complex and may require replacement of the damaged rack or gear components. In contrast, the threaded rod connection structure is easier to maintain. Regularly checking the thread wear and lubrication of the threaded rod can effectively prevent failures. Even if the threaded rod experiences slight wear, it will not cause the equipment to immediately stop operating like a rack and pinion connection would if teeth slippage occurs. This reduces the equipment failure rate and improves overall reliability. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a front view of the entire utility model;

[0014] Figure 3 This is a front sectional view of the entire utility model;

[0015] Figure 4 This is a partial top sectional view of the present invention.

[0016] In the diagram: 1. Protective plate; 2. Actuator; 3. Protective sleeve; 4. Threaded sleeve; 5. First connecting piece; 6. Threaded rod; 7. Second connecting piece; 8. Insert plate; 9. Indicator rod. Detailed Implementation

[0017] 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.

[0018] Please see Figures 1 to 4 This utility model provides a technical solution.

[0019] An ultra-thin electric double-leaf sliding door includes a protective plate 1. The protective plate 1 has a circular opening running vertically through its center. Two symmetrically arranged sliding plates 8 are movably connected inside the protective plate 1. The two sliding plates 8 are used to open and close the circular opening of the protective plate 1. Rotatable threaded rods 6 are connected to opposite sides of the two sliding plates 8. Threaded sleeves 4 are rotatably connected to both sides of the protective plate 1. The two threaded rods 6 pass through a corresponding threaded sleeve 4, and both threaded rods 6 are threadedly connected to their respective threaded sleeves 4. Actuators 2 are fixedly installed at both ends of the protective plate 1. The two actuators 2 are used to... When the actuator 2 is activated, it drives the two threaded sleeves 4 to rotate. Due to the threaded fit between the threaded rod 6 and the threaded sleeve 4, the rotation of the threaded sleeve 4 causes the threaded rod 6 to move horizontally, which in turn causes the connected insert plate 8 to move horizontally. By controlling the rotation direction of the threaded rod 6, the movement direction of the insert plate 8 can be precisely controlled. Specifically, when the two insert plates 8 move towards each other, the circular opening of the guard plate 1 can be closed; conversely, if the two insert plates 8 move away from each other, the circular opening of the guard plate 1 can be opened.

[0020] In the technical solution of this invention, the actuator 2 drives the threaded sleeve 4 to rotate. The actuator 2 is a device that can change the controlled variable according to the control signal and convert it into a corresponding action to operate the controlled object. Conventional equipment in the art can be used to drive the threaded sleeve 4 to rotate. The transmission between them can be realized using common and mature technologies in the art, such as the electric actuator commonly used in the art. The electric actuator relies on a motor to provide power and, together with a circuit that controls the direction and speed of the motor, converts electrical energy into mechanical energy through the principle of electromagnetic induction to generate rotational motion. At the same time, conventional gear transmission technology that can be easily conceived and used by those skilled in the art based on existing technical knowledge and common sense is also used. Specifically, a first gear is coaxially fixedly mounted on the surface of the threaded sleeve 4. The first gear and the second gear are meshed and connected to each other. When the actuator 2 drives the second gear to rotate as a power source, based on the basic principle of gear meshing transmission, the first gear will drive the threaded sleeve 4 to rotate synchronously, thereby realizing the rotational action of the threaded sleeve 4.

[0021] The double-opening structure allows both door plates 8 to be subjected to force simultaneously when the circular opening is opened and closed. When the circular opening is closed, the two door plates move towards each other. This force distribution helps improve the stability of the door. For example, when subjected to greater material pressure, the double-opening door can better resist deformation and reduce the possibility of leakage compared to a single-opening door. The actuator 2 drives the threaded sleeve 4 to rotate, and the threaded connection between the threaded rod 6 and the threaded sleeve 4 causes the threaded rod 6 to generate horizontal displacement, thereby driving the door plate 8 to move. This transmission method can precisely control the direction of movement of the door plate. Because the threaded connection has self-locking properties, the door plate can move horizontally stably under a given rotation direction without unexpected deviation or shaking, effectively improving the reliability and control accuracy of the door.

[0022] Both sides of the guard plate 1 are provided with protective sleeves 3. The protective sleeves 3 are used to protect and shield the protruding threaded rod 6, which helps to prevent the protruding threaded rod 6 from being interfered with or damaged by external factors during operation, ensuring the overall stability and safety of the equipment, while also improving the aesthetics and integrity of the equipment.

[0023] The two insert plates 8 are fixedly connected to the opposite sides of each other with a second connector 7, and the two second connectors 7 are rotatably connected to the threaded rod 6 respectively.

[0024] Two insert plates 8 are fixedly connected to a first connector 5 at opposite ends. Each first connector 5 is fixedly connected to an indicator rod 9 on its surface. The two indicator rods 9 move through both sides of the guard plate 1. By setting the indicator rods 9, the length of the indicator rods 9 extends indicates the distance the insert plate 8 moves, which is convenient for observing the movement of the insert plate 8 within the guard plate 1.

[0025] The specific operation of this solution is as follows: When the instruction to open the gate is received, the control system starts the actuator 2. The actuator 2 starts to operate and drives the threaded sleeve 4 connected to it to rotate. As the threaded sleeve 4 rotates, the threaded rod 6 generates a horizontal displacement under the action of the thread. This displacement direction is the direction that causes the two gate plates 8 to move in opposite directions. The horizontal displacement of the threaded rod 6 drives the second connecting piece 7 that is rotatably connected to it, thereby pulling the gate plates 8 to move in opposite directions. The gate plates 8 drive the first connecting piece 5 fixedly connected to its surface and the indicator rod 9 to move together. The extension length of the indicator rod 9 reflects the moving distance of the gate plates 8 in real time. The operator can understand the opening degree of the gate plate by observing the extension of the indicator rod 9. Continue the above process until the circular opening of the gate plate is opened to the required size. The control system stops the operation of the actuator 2. At this time, the gate plate remains open, and materials can be conveyed through the circular opening.

[0026] Closing the slide gate operation: When it is necessary to close the slide gate, the control system restarts actuator 2, causing it to reverse. The threaded sleeve 4 also reverses. The reversal of the threaded sleeve 4 causes the threaded rod 6 to produce a horizontal displacement opposite to the opening direction, which drives the second connecting piece 7 to push the two slide plates 8 to move towards each other. During the movement of the slide plates 8, the first connecting piece 5 and the indicator rod 9 move accordingly. The indicator rod 9 gradually retracts, which can also be used to indicate the degree of closure of the slide gate. When the two slide plates 8 have completely moved towards each other and are tightly fitted, closing the circular opening, the control system stops actuator 2, and the slide gate is in the closed state, effectively cutting off the flow of materials.

[0027] 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, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An ultra-thin electric double-leaf sliding door, comprising a guard plate (1), characterized in that: The center of the guard plate (1) has a circular opening that runs vertically through it. Inside the guard plate (1), there are two symmetrically arranged insert plates (8). The two insert plates (8) are used to open and close the circular opening of the guard plate (1). The opposite sides of the two insert plates (8) are respectively connected to rotatable threaded rods (6). Threaded sleeves (4) are rotatably connected to both sides of the guard plate (1). The two threaded rods (6) pass through a threaded sleeve (4) respectively, and the two threaded rods (6) are threadedly connected to the corresponding threaded sleeves (4). Actuators (2) are fixedly installed at both ends of the guard plate (1). The two actuators (2) are used to drive the two threaded sleeves (4) to rotate respectively.

2. The ultra-thin electric double-leaf sliding door according to claim 1, characterized in that, Both sides of the guard plate (1) are provided with protective sleeves (3), which are used to protect and shield the protruding threaded rod (6).

3. The ultra-thin electric double-leaf sliding door according to claim 1, characterized in that, The two insert plates (8) are fixedly connected to the opposite sides of each other with a second connector (7), and the two second connectors (7) are rotatably connected to the threaded rod (6).

4. The ultra-thin electric double-leaf sliding door according to claim 1, characterized in that, Each of the two insert plates (8) is fixedly connected to a first connector (5) at one of its opposite ends. Each of the first connectors (5) is fixedly connected to an indicator rod (9). The two indicator rods (9) respectively move through both sides of the guard plate (1).