Plug door
By introducing a transverse sliding part and a wear-resistant plate structure into the feeder's slide gate isolation door, the problems of difficult slide gate movement and jamming were solved, improving equipment operating efficiency and sealing performance, and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHANGJIAGANG YUDA ELECTRIC POWER TECH CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-06-12
AI Technical Summary
The existing feeder gate is susceptible to intrusion of impurities such as coal ash and slag during frequent opening and closing, which can lead to difficulty in movement or jamming, affecting the normal operation of the equipment, reducing production efficiency and increasing maintenance costs.
A sliding door with insert plates was designed. It uses a horizontal sliding part to slide within a hollow cavity. Combined with a guide rail and guide wheel structure, it reduces frictional resistance and is equipped with wear-resistant plates and adjusting parts to ensure stable movement and sealing performance of the insert plates.
This achieves smooth sliding of the insert plate, avoids jamming, improves production efficiency, reduces equipment maintenance frequency and cost, and enhances sealing performance and equipment stability.
Smart Images
Figure CN224349958U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of panel door technology, and more specifically, it relates to a panel isolation door. Background Technology
[0002] In the process of conveying bulk materials such as coal and ore, the coal feeder is a key piece of equipment in the material conveying system, and the material control at its inlet directly affects the stability and safety of the entire conveying system.
[0003] However, existing feeder gate isolation panels have significant drawbacks in practical applications. Due to frequent opening and closing operations, the gates are susceptible to intrusion of impurities such as coal ash and slag. Combined with wear and tear from prolonged operation, this leads to difficulties in movement and even jamming during operation. This problem not only affects the normal opening and closing of the feeder, reducing production efficiency, but may also cause damage to equipment components due to forced operation, increasing maintenance costs. Utility Model Content
[0004] The purpose of this utility model is to provide a sliding plate isolation door, which aims to solve the problem of difficulty in moving or even jamming during the movement of the sliding plate, which affects the normal opening and closing of the coal feeder, reduces production efficiency, and increases costs.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a door with an insert plate, comprising:
[0006] The cover has a hollow cavity inside, and a discharge port connected to the inlet of the coal feeder is provided on the cover;
[0007] An insert plate is disposed in the hollow cavity via a lateral sliding part, and a material discharge port is provided in the middle of the insert plate;
[0008] The insert plate slides laterally back and forth within the hollow cavity via the lateral sliding part, and the material inlet and the material outlet are connected to each other to achieve an open state; or, the material inlet and the material outlet are staggered to achieve a closed state.
[0009] In one possible implementation, a top wear-resistant plate is provided at the top of the hollow cavity, a bottom wear-resistant plate is provided at the bottom of the hollow cavity, the upper end face of the insert plate is sealed and fitted with the top wear-resistant plate, and the lower end face of the insert plate is sealed and fitted with the bottom wear-resistant plate.
[0010] In one possible implementation, the top wear-resistant plate is fixedly disposed at the top of the hollow cavity, the bottom wear-resistant plate is movably disposed at the bottom of the hollow cavity, and the bottom of the hollow cavity is provided with a first adjusting member for adjusting the height of the bottom wear-resistant plate.
[0011] In one possible implementation, the first adjusting member includes a first adjusting screw that extends longitudinally from the bottom of the cover into the bottom of the hollow cavity, with the upper end of the first adjusting screw abutting against the lower end face of the bottom wear-resistant plate.
[0012] In one possible implementation, the lateral sliding part includes a guide rail and a plurality of guide wheels. The guide rail is laterally disposed at the bottom of the hollow cavity, and the plurality of guide wheels are disposed at the bottom of the insert plate. The plurality of guide wheels slide in cooperation along the length direction of the guide rail.
[0013] In one possible implementation, mounting brackets are respectively provided on the left and right sides of the hollow cavity, the mounting brackets are connected to the adjacent side walls of the hollow cavity, and the guide rails are correspondingly provided on the mounting brackets on the same side.
[0014] In one possible implementation, the mounting bracket is movably arranged in the height direction, and the bottom left and right sides of the hollow cavity are respectively provided with second adjusting members for adjusting the height of the mounting bracket on the corresponding side.
[0015] In one possible implementation, the second adjusting member includes a second set screw that extends longitudinally from the bottom of the cover into the bottom of the hollow cavity, with the upper end of the second set screw abutting against the lower end face of the mounting bracket.
[0016] In one possible implementation, the insert isolation door further includes a drive mechanism disposed on one side of the cover, the drive mechanism being used to drive the insert to slide laterally back and forth.
[0017] In one possible implementation, the drive mechanism is any one of a lead screw drive mechanism, a cylinder, a hydraulic cylinder, or an electric push rod.
[0018] The beneficial effects of the insert plate isolation door provided by this utility model are as follows: Compared with the prior art, the lateral sliding part is located in the hollow cavity of the cover, which provides stable guidance and support for the lateral reciprocating sliding of the insert plate in the hollow cavity. When the insert plate isolation door needs to be opened, the operator drives the insert plate to slide laterally in the hollow cavity of the cover with the help of the lateral sliding part. As the insert plate moves smoothly, the material outlet in the middle gradually aligns with the discharge outlet on the cover that connects to the coal feeder inlet, until the two are completely overlapped. At this time, the material can smoothly pass through the channel formed by the material outlet and the discharge outlet and enter the coal feeder, completing the opening action. The whole process is smooth and efficient, without any jamming. When closing the insert plate isolation door, the insert plate is driven in the opposite direction, so that it slides in the opposite direction along the lateral sliding part. After the insert plate starts to move, the overlap between the material outlet and the discharge outlet gradually decreases. When the insert plate slides to a specific position, the material outlet and the discharge outlet are completely misaligned, the channel is blocked, and the material can no longer pass through, achieving a sealed and closed state and preventing the material from continuing to enter the coal feeder. The slide plate isolation door provided by this utility model reduces the frictional resistance between the slide plate and the cover, making the opening and closing operation of the slide plate easier and smoother. This ensures that the coal feeder can execute the switching command quickly and accurately, significantly improving production efficiency, significantly reducing the frequency of maintenance and replacement, and effectively reducing equipment maintenance costs. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a front sectional view of the plug-in isolation door in the closed state provided by this utility model;
[0021] Figure 2 A side sectional view of the insert isolation door provided by this utility model in the open state;
[0022] Figure 3 This is a side sectional view of the insert-plate isolation door provided by this utility model.
[0023] In the diagram: 1. Cover; 2. Discharge port; 3. Insert plate; 4. Top wear-resistant plate; 5. Bottom wear-resistant plate; 6. First set screw; 7. Guide rail; 8. Guide wheel; 9. Mounting bracket; 10. Second set screw; 11. Connecting bolt; 12. Adjustment hole; 13. Screw drive mechanism; 14. Discharge port. Detailed Implementation
[0024] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0025] Unless otherwise explicitly specified, the use of terms such as "first," "second," or "third" is intended to distinguish different objects, not to describe a specific order.
[0026] Unless otherwise expressly defined, the use of directional terms such as “center,” “lateral,” “longitudinal,” “horizontal,” “vertical,” “top,” “bottom,” “inner,” “outer,” “upper,” “lower,” “front,” “back,” “left,” “right,” “clockwise,” “counterclockwise,” “high,” and “low” to indicate orientation or positional relationships is based on the orientation and positional relationships shown in the accompanying drawings and is only for the convenience of describing the present invention and simplifying the description. It is not intended to indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific protection scope of the present invention.
[0027] Please see Figure 1 and Figure 3 The present invention provides a slide gate isolation door. The slide gate isolation door includes a cover 1 and a slide 3. The cover 1 has a hollow cavity inside, and a discharge port 2 connected to the inlet of a coal feeder is provided on the cover 1. The slide 3 is disposed within the hollow cavity via a transverse sliding part, and a discharge port 14 is provided in the middle of the slide 3. The slide 3 slides laterally back and forth within the hollow cavity via the transverse sliding part, connecting the discharge port 14 and the discharge port 2 to achieve an open state; or, the discharge port 14 and the discharge port 2 are staggered to achieve a closed state.
[0028] Compared with the prior art, the insert plate isolation door provided by this utility model has a lateral sliding part located in the hollow cavity of the cover 1, which provides stable guidance and support for the lateral reciprocating sliding of the insert plate in the hollow cavity. When it is necessary to open the insert plate isolation door, the operator drives the insert plate 3 to slide laterally in the hollow cavity of the cover 1 with the help of the lateral sliding part. As the insert plate 3 moves smoothly, the material drop port 14 opened in the middle gradually aligns with the discharge port 2 on the cover 1 that connects to the coal feeder inlet, until the two are completely overlapped. At this time, the material can smoothly pass through the channel formed by the material drop port 14 and the discharge port 2 and enter the coal feeder, completing the opening action. The whole process is smooth and efficient without any jamming. When closing the insert plate isolation door, the insert plate 3 is driven in the opposite direction, so that it slides in the opposite direction along the lateral sliding part. After the insert plate 3 begins to move, the overlap between the discharge port 14 and the discharge port 2 gradually decreases. When the insert plate 3 slides to a specific position, the discharge port 14 and the discharge port 2 are completely misaligned, the channel is blocked, and materials can no longer pass through, achieving a sealed and closed state and preventing materials from continuing to enter the coal feeder. The insert plate isolation door provided by this utility model reduces the frictional resistance between the insert plate and the cover, making the opening and closing operation of the insert plate easier and smoother. This ensures that the coal feeder can quickly and accurately execute the switching commands, significantly improving production efficiency, significantly reducing the frequency of maintenance and replacement, and effectively reducing equipment maintenance costs.
[0029] The insert plate 3 features a hollow internal structure, effectively mitigating deformation issues caused by its large size. This hollow structure significantly reduces the weight of the insert plate 3 by minimizing material usage, thus weakening the deformation-driving force caused by gravity. Simultaneously, the hollow design optimizes material distribution and enhances structural bending stiffness through appropriate cross-sectional shapes (such as rectangular or I-shaped sections), enabling the insert plate 3 to maintain a more stable geometric shape under its own weight and external loads. Furthermore, when open, the insert plate 3 seals the gaps on both sides of the coal feeder's discharge port 2, preventing the intrusion of impurities such as coal ash and slag.
[0030] A top wear-resistant plate 4 is installed at the top of the hollow chamber, and a bottom wear-resistant plate 5 is installed at the bottom of the hollow chamber. The upper end face of the insert plate 3 is sealed and fitted with the top wear-resistant plate 4, and the lower end face of the insert plate 3 is sealed and fitted with the bottom wear-resistant plate 5. The installation of the top wear-resistant plate 4 and the bottom wear-resistant plate 5 enhances the wear resistance of the hollow chamber. During material conveying, frequent sliding of the insert plate 3 can easily lead to wear on the top and bottom of the chamber. The presence of the wear-resistant plates can effectively resist the friction loss caused by material impact and sliding of the insert plate 3, reduce the probability of equipment failure due to wear, and extend the overall service life.
[0031] Meanwhile, the upper and lower ends of the insert plate 3 are sealed and fitted with the top wear-resistant plate 4 and the bottom wear-resistant plate 5, respectively. This sealing structure further enhances the sealing performance of the insert plate isolation door, forming multiple layers of sealing protection. This effectively prevents material leakage from the gaps between the insert plate 3 and the top and bottom of the chamber. Even under harsh conditions such as high pressure and high dust, it can ensure a good sealing effect and prevent material spillage from polluting the working environment. In addition, as a vulnerable component, the wear-resistant plate is more convenient and quick to replace than the entire cover 1. When the wear is severe, it can be disassembled and replaced separately, which greatly reduces the maintenance cost and time of the equipment, improves production efficiency, and makes the insert plate isolation door operate more stably and reliably in the material conveying system.
[0032] The top wear-resistant plate 4 is fixedly installed at the top of the hollow chamber, while the bottom wear-resistant plate 5 is movably installed at the bottom of the hollow chamber. A first adjusting element for adjusting the height of the bottom wear-resistant plate 5 is provided at the bottom of the hollow chamber. As usage time increases, the bottom wear-resistant plate 5 wears due to frequent friction with the insert plate 3 and material impact. At this time, the height of the bottom wear-resistant plate 5 can be adjusted using the first adjusting element to ensure it remains tightly fitted to the lower end face of the insert plate 3, continuously providing a sealing effect. This eliminates the need for immediate replacement of the wear-resistant plate, effectively extending its service life and reducing replacement frequency.
[0033] Specifically, the first adjusting component includes a first set screw 6, which extends longitudinally from the bottom of the cover 1 into the bottom of the hollow cavity. The upper end of the first set screw 6 abuts against the lower end face of the bottom wear-resistant plate 5. By turning the first set screw 6, its upward lifting height can be precisely controlled, thereby finely adjusting the fit between the bottom wear-resistant plate 5 and the lower end face of the insert plate 3. This fine adjustment capability ensures that the sealing effect is always at its best. Even if minor wear occurs after long-term operation of the equipment, sealing compensation can be achieved by finely adjusting the first set screw 6.
[0034] Please see Figure 3 The transverse sliding part includes a guide rail 7 and multiple guide wheels 8. The guide rail 7 is transversely arranged at the bottom of the hollow cavity, and the multiple guide wheels 8 are arranged at the bottom of the insert plate 3. The multiple guide wheels 8 slide and engage along the length direction of the guide rail 7. The bottom left and right sides of the hollow cavity are respectively provided with guide rails 7, and the sides of the insert plate 3 are respectively provided with sliding parts, which slide and engage along the length direction of the guide rail 7.
[0035] The guide rollers 8 convert the sliding friction between the insert plate 3 and the guide rail 7 into rolling friction, significantly reducing the friction between them. This makes the sliding of the insert plate 3 on the guide rail 7 smoother and more flexible, maintaining smooth sliding even under long-term, high-frequency use, thus reducing energy consumption. At the same time, the spaced guide rollers 8 can evenly distribute the pressure on the insert plate 3, enhancing the stability of the insert plate 3 during sliding and preventing the insert plate 3 from tilting or jamming due to uneven force, ensuring the reliability of the opening and closing action of the discharge port 2. Even when faced with the impact and vibration generated during material conveying, the guide rollers 8 can effectively buffer external forces with their flexible rolling characteristics, reducing the shaking of the insert plate 3 and ensuring that the sealing effect is not affected.
[0036] Preferably, a concave surface is formed in the middle of the outer peripheral surface of the guide wheel 8 to increase the contact area with the guide rail 7, making the fit between the two tighter and effectively preventing the guide wheel 8 from sliding or deviating on the guide rail 7, thus enhancing the contact stability when the insert plate 3 slides.
[0037] Please see Figure 2 Mounting brackets 9 are respectively installed on the left and right sides of the hollow chamber. The mounting brackets 9 are connected to the adjacent side walls of the hollow chamber, and the guide rails 7 are correspondingly installed on the mounting brackets 9 on the same side. The mounting brackets 9 provide additional support structure for the guide rails 7, enhancing the stability of the guide rails 7 installation. This ensures that the guide rails 7 remain stable without displacement or deformation when subjected to the force of the sliding of the insert plate 3 and the impact force during material conveying. This further ensures the smoothness and stability of the sliding of the insert plate 3 along the guide rails 7, and ensures the reliability of the discharge port 2 control.
[0038] The mounting frame 9 is movable in the height direction, and second adjusting components for adjusting the height of the corresponding mounting frame 9 are respectively provided on the left and right sides of the bottom of the hollow chamber. Longitudinal adjusting holes 12 are respectively opened on both sides of the cover 1, and the mounting frame 9 is connected by connecting bolts 11 passing through the adjusting holes 12 from the outside to the inside. The longitudinally arranged adjusting holes 12 provide space and guidance for the movement of the mounting frame 9 in the height direction. The connecting bolts 11 pass through the adjusting holes 12 from the outside to the inside to connect the mounting frame 9. Operators can easily adjust the height position of the mounting frame 9 within the range of the adjusting holes 12 by loosening or tightening the bolts. This effectively resists vibrations and forces caused by material impact and sliding of the insert plate 3 during equipment operation, ensuring the stable position of the mounting frame 9 and preventing loosening, thereby maintaining a good fit between the guide rail 7 and the insert plate 3, and ensuring the accuracy and stability of the discharge port 2 control.
[0039] Specifically, the second adjusting component includes a second set screw 10, which extends longitudinally from the bottom of the cover 1 into the bottom of the hollow cavity. The upper end of the second set screw 10 abuts against the lower end face of the mounting bracket 9. Operators can control the height of the mounting bracket 9 from outside the cover 1 by screwing the second set screw 10, without disassembling the cover 1 or other components. This significantly simplifies the adjustment process and shortens maintenance time, especially in situations requiring frequent adjustments to the height of the guide rail 7, thus significantly improving work efficiency. Simultaneously, the second set screw 10 offers high adjustment precision, enabling fine adjustments to the height of the mounting bracket 9. This accurately compensates for wear on the guide rail 7 and guide wheel 8, ensuring the insert plate 3 is always at the optimal operating height, maintaining good sealing performance and smooth sliding, and effectively preventing equipment failure and material leakage caused by adjustment errors.
[0040] Preferably, the partition door further includes a drive mechanism, which is located on one side of the cover 1 and is used to drive the partition 3 to slide laterally back and forth.
[0041] The drive mechanism can be any one of the following: screw drive mechanism 13, pneumatic cylinder, hydraulic cylinder, or electric actuator. Multiple drive types can be flexibly selected according to the characteristics of the actual application scenario. For example, in environments with high cleanliness requirements, an electric actuator or screw drive mechanism 13 can be used, as its transmission process is relatively smooth and less prone to contamination; while in situations requiring rapid response or withstanding large impact loads, pneumatic or hydraulic cylinders can meet the needs with their powerful driving force and rapid action characteristics, enabling the slide gate isolation door to operate efficiently under different working conditions.
[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A door with a sliding panel for partitioning, characterized in that: include: The cover (1) has a hollow cavity inside, and the cover (1) has a discharge port (2) that connects to the inlet of the coal feeder; The insert plate (3) is disposed in the hollow cavity through a transverse sliding part, and the insert plate (3) has a material discharge port (14) in the middle. The insert plate (3) slides laterally back and forth in the hollow cavity by means of the lateral sliding part, and the material drop port (14) and the material discharge port (2) are connected and closed to reach the open state; or, the material drop port (14) and the material discharge port (2) are staggered to reach the closed state.
2. The insert-plate isolation door as described in claim 1, characterized in that, The top of the hollow cavity is provided with a top wear-resistant plate (4), and the bottom of the hollow cavity is provided with a bottom wear-resistant plate (5). The upper end face of the insert plate (3) is sealed and fitted with the top wear-resistant plate (4), and the lower end face of the insert plate (3) is sealed and fitted with the bottom wear-resistant plate (5).
3. The insert-plate isolation door as described in claim 2, characterized in that, The top wear-resistant plate (4) is fixedly installed on the top of the hollow cavity, and the bottom wear-resistant plate (5) is movably installed on the bottom of the hollow cavity. The bottom of the hollow cavity is provided with a first adjusting member for adjusting the height of the bottom wear-resistant plate (5).
4. The insert-plate isolation door as described in claim 3, characterized in that, The first adjusting member includes a first set screw (6), which extends longitudinally from the bottom of the cover (1) into the bottom of the hollow cavity, and the upper end of the first set screw (6) abuts against the lower end face of the bottom wear-resistant plate (5).
5. The insert-plate isolation door as described in claim 1, characterized in that, The transverse sliding part includes a guide rail (7) and a plurality of guide wheels (8). The guide rail (7) is transversely disposed at the bottom of the hollow cavity, and the plurality of guide wheels (8) are disposed at the bottom of the insert plate (3). The plurality of guide wheels (8) slide and engage along the length direction of the guide rail (7).
6. The insert-plate isolation door as described in claim 5, characterized in that, Mounting brackets (9) are respectively provided on the left and right sides of the hollow cavity. The mounting brackets (9) are connected to the side walls of the hollow cavity. The guide rails (7) are respectively provided on the mounting brackets (9) on the same side.
7. The insert-plate isolation door as described in claim 6, characterized in that, The mounting bracket (9) is movable in the height direction, and the bottom left and right sides of the hollow cavity are respectively provided with second adjusting members for adjusting the height of the mounting bracket (9) on the corresponding side.
8. The insert-plate isolation door as described in claim 7, characterized in that, The second adjusting member includes a second set screw (10), which extends longitudinally from the bottom of the cover (1) into the bottom of the hollow cavity, and the upper end of the second set screw (10) abuts against the lower end face of the mounting bracket (9).
9. The insert-plate isolation door as described in claim 1, characterized in that, The insert isolation door also includes a drive mechanism, which is located on one side of the cover (1) and is used to drive the insert (3) to slide laterally back and forth.
10. The insert-plate isolation door as described in claim 9, characterized in that, The drive mechanism is any one of a lead screw drive mechanism (13), a cylinder, a hydraulic cylinder, or an electric push rod.