Novel slide plate gate with sawtooth structure

Abstract

The utility model discloses a novel inserting plate door of a sawtooth structure, and relates to the technical field of coal conveying, the novel inserting plate door of the sawtooth structure comprises a supporting frame and further comprises a blocking assembly, and the blocking assembly comprises erecting bases symmetrically arranged on the upper end face and the lower end face of the supporting frame and a first conveying pipe arranged in the erecting base at the upper end in a sleeved mode. Control over communication and blocking between the first conveying pipe and the second conveying pipe can be achieved, so that the coal conveying amount is accurately controlled, the contact area of the two sets of blocking plate doors is further increased through the arranged sawtooth parts, more closed areas are formed on the contact end faces, contact stress is distributed on the larger surface, and the coal conveying amount is increased. According to the sealing structure, the local stress concentration is reduced, so that the sealing failure caused by the stress concentration is prevented, and when the end surfaces of the mutually meshed sealing structures are contacted, the local elastic deformation caused by the contact is favorable for filling a tiny gap during meshing, so that the sealing performance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal material conveying, in particular to a novel plug door with a sawtooth structure. Background Technique

[0002] A coal bunker is a large container used for storing coal in coal mines, power plants or industrial facilities. A coal material conveying pipeline is arranged at the bottom thereof for conveying the coal material in the bunker. An activity sealing plate door is often arranged on the coal material conveying pipeline to realize the opening and closing of the conveying pipeline.

[0003] Most of the existing activity sealing plate doors for coal material conveying pipelines are realized by combining two plate doors when blocking the pipeline. However, most of the contact end faces between the two plate doors are flat designs. When the two groups of mutually contacting planes form a seal, the sealing area is small and the stress distribution may be uneven. Therefore, during long-term use, when stress concentrates in certain areas, these areas may undergo excessive deformation or damage, resulting in the separation of the sealing surface and the formation of a leakage channel. Content of the Utility Model

[0004] The purpose of the utility model is to provide a novel plug door with a sawtooth structure to solve the technical problems mentioned in the above background technique.

[0005] The technical problems to be solved by the utility model can be realized through the following technical solutions:

[0006] A novel plug door with a sawtooth structure includes a support frame;

[0007] It further includes a blocking component. The blocking component includes mounting seats symmetrically arranged on the upper and lower end faces of the support frame, a first material conveying pipe sleeved inside the upper mounting seat, a second material conveying pipe sleeved inside the lower mounting seat, and the inner diameters of the first material conveying pipe and the second material conveying pipe gradually decrease from top to bottom, and the inner diameters of the two ends close to each other are equal. Two groups of blocking plate doors that are slidably arranged and meshed with each other between the first material conveying pipe and the second material conveying pipe, and sawtooth parts arranged on the mutually close end faces of the two groups of blocking plate doors.

[0008] As a further scheme of the utility model: the cross-sectional areas of the two groups of blocking plate doors meshed together are both larger than the cross-sectional area of the mutually close ends of the first material conveying pipe and the second material conveying pipe.

[0009] As a further scheme of the utility model: telescopic cylinders for driving the blocking plate doors to move are arranged on both sides of the support frame.

[0010] As a further scheme of the utility model: accommodating frames are symmetrically arranged on the mutually close end faces of the mounting seats, and a number of groups of fine-tuning bolts matched with the accommodating frames are arranged on the mounting seats, and one end of the fine-tuning bolts penetrates through the accommodating frames.

[0011] As a further solution of the present utility model: a fixing plate is provided at one end of the fine-tuning bolt penetrating through the accommodating frame, and a limiting strip for limiting the movement of the plugging plate door is provided on the fixing plate.

[0012] As a further solution of the present utility model: protective cover plates are symmetrically arranged on the upper and lower end faces of the erection seat, and the protective cover plates are located on both sides of the erection seat.

[0013] Beneficial effects of the present utility model:

[0014] In the present utility model, by providing two plugging plate doors with serrated parts on the end faces, the control of the connection and plugging between the first material conveying pipe and the second material conveying pipe can be realized, so as to accurately control the coal material transportation volume. The serrated parts provided increase the contact area between the two plugging plate doors, thereby forming more closed areas on the contact end face. The contact stress is distributed on a larger surface, reducing local stress concentration, thus preventing seal failure caused by stress concentration. And the mutually meshing sealing structure, when the end faces of each other come into contact, the local elastic deformation caused by the contact helps to fill the tiny gaps during meshing, thereby improving the sealing performance. Description of the drawings

[0015] The following further describes the present utility model with reference to the accompanying drawings.

[0016] Figure 1 is the overall three-dimensional schematic diagram of the device in the present utility model;

[0017] Figure 2 is the three-dimensional schematic diagram of the plugging plate door in the present utility model;

[0018] Figure 3 is the three-dimensional schematic diagram of the fine-tuning bolt in the present utility model.

[0019] In the figure: 1, support frame; 2, erection seat; 3, first material conveying pipe; 4, second material conveying pipe; 5, plugging plate door; 6, serrated part; 7, telescopic cylinder; 8, accommodating frame; 9, fine-tuning bolt; 10, fixing plate; 11, limiting strip; 12, protective cover plate. Specific embodiments

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0021] Such as Figures 1-3As shown in the figure, a new type of plug door with a sawtooth structure includes a support frame 1. The support frame 1 is a fixed component for the whole device. Through the support frame 1, the whole device can be fixed on the conveying pipeline of the coal bunker, ensuring the overall stability of the device during use;

[0022] It further includes a plugging component. The plugging component includes erection seats 2 symmetrically arranged on the upper and lower end faces of the support frame 1, a first material conveying pipe 3 sleeved inside the upper erection seat 2, a second material conveying pipe 4 sleeved inside the lower erection seat 2. The inner diameters of the first material conveying pipe 3 and the second material conveying pipe 4 gradually decrease from top to bottom, and the inner diameters of the two ends close to each other are equal. Two sets of plug doors 5 that are slidably arranged between the first material conveying pipe 3 and the second material conveying pipe 4 and mesh with each other, and sawtooth parts 6 arranged on the end faces of the two sets of plug doors 5 close to each other. Both the first material conveying pipe 3 and the second material conveying pipe 4 are used for conveying coal. When the two sets of plug doors 5 move away from each other, the first material conveying pipe 3 and the second material conveying pipe 4 are communicated with each other for coal conveying. When the two sets of plug doors 5 move close to each other, the first material conveying pipe 3 and the second material conveying pipe 4 can be plugged, thus interrupting the coal conveying. When the two sets of plug doors 5 move close to each other, the sawtooth parts 6 on them mesh with each other, thereby realizing sealing. The arranged sawtooth parts 6 make the contact area between the two sets of plug doors 5 further increase, so that more closed areas are formed at the contact part, and the contact stress is distributed on a larger surface, reducing local stress concentration, thereby preventing sealing failure caused by stress concentration.

[0023] In this embodiment, specifically, the cross-sectional areas of the two sets of plug doors 5 meshed together are both larger than the cross-sectional area of the ends of the first material conveying pipe 3 and the second material conveying pipe 4 close to each other, thereby ensuring that the two sets of plug doors 5 can effectively plug the first material conveying pipe 3 and the second material conveying pipe 4 when meshed together.

[0024] In this embodiment, specifically, telescopic cylinders 7 for driving the plug doors 5 to move are arranged on both sides of the support frame 1. The telescopic cylinders 7 provide a power source to drive the plug doors 5 to mesh with each other or separate from each other, so as to achieve the purpose of plugging or communicating between the first material conveying pipe 3 and the second material conveying pipe 4, and the coal conveying volume can be accurately controlled.

[0025] In this embodiment, specifically, accommodation frames 8 are symmetrically arranged on the end faces of the erection bases 2 that are close to each other. A number of groups of fine-tuning bolts 9 that match the accommodation frames 8 are arranged on the erection bases 2. One end of the fine-tuning bolt 9 penetrates through the accommodation frame 8. A fixing plate 10 is arranged at the end of the fine-tuning bolt 9 that penetrates through the accommodation frame 8. A limiting strip 11 for limiting the movement of the plugging plate door 5 is arranged on the fixing plate 10. The opening and closing movement of the plugging plate door 5 can be limited by the arranged limiting strip 11 to prevent it from shifting during the movement, so as to avoid the sawtooth part 6 on the subsequent plugging plate door 5 from being unable to mesh normally. The position of the limiting strip 11 can be adjusted by the fine-tuning bolt 9, so as to ensure that the limiting strip 11 can form a good limiting effect on the plugging plate door 5. The arranged accommodation frame 8 limits the limiting strip 11 during its lifting and lowering, so as to ensure that the limiting strip 11 is always on a vertical end face, ensuring the stability during its adjustment.

[0026] In this embodiment, specifically, protective cover plates 12 are symmetrically arranged on the upper and lower end faces of the erection bases 2, and the protective cover plates 12 are located on both sides of the erection bases 2. The protective cover plates 12 arranged on both sides of the erection bases 2 can form good protection for the telescopic ends of the telescopic cylinders 7, and can also play a good protective role for the plugging plate door 5 when the telescopic cylinders 7 drive the plugging plate door 5 to retract, avoiding damage to the plugging plate door 5 during the retraction process, so as to prevent the subsequent plugging plate door 5 from being unable to close normally, ensuring the normal use of the device.

[0027] The above has described an embodiment of the present invention in detail, but the described content is only the preferred embodiment of the present invention and cannot be considered as limiting the implementation scope of the present invention. Any equal changes and improvements made according to the scope of the application of the present invention shall still fall within the scope covered by the patent of the present invention.

Claims

1. A novel plug door with a sawtooth structure, comprising a support frame (1); characterized in that: It further comprises a plugging assembly, the plugging assembly includes mounting seats (2) symmetrically arranged on the upper and lower end faces of the support frame (1), a first material conveying pipe (3) sleeved inside the upper mounting seat (2), a second material conveying pipe (4) sleeved inside the lower mounting seat (2), and the inner diameters of the first material conveying pipe (3) and the second material conveying pipe (4) gradually decrease from top to bottom, and the inner diameters of the two ends close to each other are equal. Two sets of plug doors (5) meshing with each other and slidingly arranged between the first material conveying pipe (3) and the second material conveying pipe (4), and sawtooth portions (6) arranged on the end faces of the two sets of plug doors (5) close to each other.

2. The novel serrated structure plug door according to claim 1, characterized in that, The cross-sectional areas of the two sets of plug doors (5) meshed together are both larger than the cross-sectional area of the ends of the first material conveying pipe (3) and the second material conveying pipe (4) close to each other.

3. The novel serrated structure plug door according to claim 1, wherein On both sides of the support frame (1), there are telescopic cylinders (7) for driving the plug doors (5) to move.

4. A novel serrated structure plug door according to claim 1, characterized in that, On the end faces of the mounting seats (2) close to each other, accommodation frames (8) are symmetrically arranged. On the mounting seats (2), there are several groups of fine-tuning bolts (9) matching the accommodation frames (8), and one end of the fine-tuning bolts (9) penetrates through the accommodation frames (8).

5. A novel serrated structure plug door according to claim 4, characterized in that, One end of the fine-tuning bolt (9) penetrating through the accommodation frame (8) is provided with a fixing plate (10), and on the fixing plate (10), there is a limiting strip (11) for limiting the movement of the plug door (5).

6. The novel serrated structure plug door according to claim 1, characterized in that, On the upper and lower end faces of the mounting seat (2), protective covers (12) are symmetrically arranged, and the protective covers (12) are located on both sides of the mounting seat (2).

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