Self-locking type coal unloading ditch sealing baffle
By designing a self-locking coal unloading trench sealing baffle, the splicing structure of the unit baffle solves the problems of cumbersome installation and inconvenient replacement of traditional sealing baffles, achieving convenient installation and efficient maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAANXI DEZHONG ELECTRIC MASCH CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-17
AI Technical Summary
Traditional truck coal unloading trench sealing baffles are large in size, making them cumbersome to transport and install, and inconvenient to replace and maintain later.
The self-locking coal unloading trench sealing baffle is adopted. By combining several unit baffles, a snap-fit structure with splicing convex strips, grooves, locking shells and arrow-shaped pins is formed to achieve a quick loading and unloading effect and a sealing effect.
It enables convenient installation and quick replacement of the sealing baffle, improving sealing performance and maintenance efficiency.
Smart Images

Figure CN224132090U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of coal unloading trenches, and more specifically, to self-locking coal unloading trench sealing baffles. Background Technology
[0002] The sealing baffle of the coal unloading trench is a key protective device used in the coal transportation system. Its main functions are to prevent coal from scattering, control dust pollution, and improve operational safety.
[0003] Currently, in traditional truck coal unloading trenches, the lower end of the underground coal hopper side wall is equipped with a sealing baffle installed outside the underground coal hopper to prevent coal dust leakage. However, for sealing baffles with a large sealing range, the large size of the integrated sealing baffle makes transportation and installation cumbersome and causes inconvenience for later replacement and maintenance.
[0004] To address the aforementioned issues, this application provides a self-locking coal unloading trench sealing baffle. Utility Model Content
[0005] The self-locking coal unloading trench sealing baffle provided in this application adopts the following technical solution:
[0006] The self-locking coal unloading trench sealing baffle includes a sealing baffle body, which is composed of several unit baffles. Each unit baffle has a mounting plate fixed to its right end and a support pad fixed to its left end. One side of each unit baffle has a splicing protrusion, and the other side of each unit baffle has a splicing groove. A locking shell is welded to the unit baffle near the splicing groove, and a locking block is welded to the unit baffle near the splicing protrusion. An arrow-shaped pin is welded to the surface of the locking block, and both sides of the arrow-shaped pin have arc grooves. Two fixing frames are fixed inside the locking shell, and a spring is installed in each fixing frame. One end of the spring abuts against a head, and one end of the head extends into the arc groove of the arrow-shaped pin.
[0007] Furthermore, the unit baffle is in the form of an inclined Z-shaped structure, with the support pad of the unit baffle facing downwards and the mounting plate of the unit baffle facing upwards, and screw holes are provided on the surface of the mounting plate of the unit baffle.
[0008] Furthermore, the end of the abutment away from the fixed frame is an arc-shaped structure, and a limit block is provided at the end of the abutment extending into the inner side of the fixed frame.
[0009] Furthermore, the locking shell has a rectangular opening on the side facing the locking block, and the size of the arrow-shaped pin is adapted to the inner size of the rectangular opening.
[0010] Furthermore, the mounting plate contacts the lower end of the underground coal hopper sidewall of the unloading ditch, and the support pad contacts the impeller feeder housing of the unloading ditch.
[0011] Furthermore, two locking shells are provided on one side of the top surface of the unit baffle, and two locking blocks are provided on the other side of the top surface of the unit baffle.
[0012] In summary, this application includes the following beneficial technical effects:
[0013] The sealing baffle structure of the coal unloading trench is composed of several self-locking unit baffles. By connecting the sides of several unit baffles in sequence, the splicing protrusion of one unit baffle is inserted into the splicing groove of another unit baffle. At this time, the locking block of the unit baffle is inserted into the locking shell of another unit baffle through the arrow-shaped pin. Since there are two fixed frames symmetrically arranged in the locking shell, and each fixed frame is equipped with a set of springs and abutments, when the arrow-shaped pin is inserted into the gap between the two fixed frames, the spring-connected abutment and the arc groove on one side of the arrow-shaped pin form a snap-fit structure that can be quickly installed and removed. Compared with the traditional structure, it is not only convenient for the installation of the sealing baffle body, but also easy for quick replacement and maintenance in the later stage. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this application;
[0015] Figure 2 This is a schematic diagram of the two unit baffles in the spliced state of this application;
[0016] Figure 3 This is a schematic diagram of the unit baffle structure of this application;
[0017] Figure 4 This is a schematic diagram of the installation state of the sealing baffle body of this application.
[0018] Explanation of the labels in the diagram:
[0019] 1. Sealing baffle body; 2. Unit baffle; 3. Mounting plate; 4. Screw hole; 5. Support pad; 6. Locking shell; 7. Locking block; 8. Arrow-shaped pin; 9. Fixing frame; 10. Spring; 11. Abutment; 12. Arc groove; 13. Splicing protrusion; 14. Splicing groove. Detailed Implementation
[0020] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0021] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not 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 a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0022] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0023] Example:
[0024] This application discloses a self-locking coal unloading trench sealing baffle; please refer to [link / reference needed]. Figure 1-4 The system includes a sealing baffle body 1, which is composed of several unit baffles 2. Each unit baffle 2 has a mounting plate 3 fixed to its right end and a support pad 5 fixed to its left end. One side of each unit baffle 2 has a splicing protrusion 13, and the other side of each unit baffle 2 has a splicing groove 14. A locking shell 6 is welded to the unit baffle 2 near the splicing groove 14, and a locking block 7 is welded to the unit baffle 2 near the splicing protrusion 13. The surface of the locking block 7 is welded with an arrow-shaped pin 8, and both sides of the arrow-shaped pin 8 are provided with arc grooves 12. Two fixing frames 9 are fixed inside the locking shell 6, and a spring 10 is provided in each fixing frame 9. One end of the spring 10 abuts against a head 11, and one end of the head 11 extends into the arc groove 12 of the arrow-shaped pin 8. The use of splicing protrusions 13 and splicing grooves 14 makes the connection between two adjacent unit baffles 2 tighter, with a good sealing effect, preventing coal powder leakage.
[0025] Please see Figure 1-3 The unit baffle 2 has an inclined Z-shaped structure. The support pad 5 of the unit baffle 2 is set downwards, and the mounting plate 3 of the unit baffle 2 is set upwards. The mounting plate 3 of the unit baffle 2 has screw holes 4 on its surface. This structure makes it easy to install the sealing baffle body 1.
[0026] Please see Figure 3The end of the abutment 11 away from the fixed frame 9 is an arc-shaped structure, and a limit block is provided at the end of the abutment 11 extending into the inner side of the fixed frame 9. With this structure, it is easy to quickly connect and separate the arrow-shaped pin 8 from the abutment 11.
[0027] Please see Figure 1 and Figure 3 The locking housing 6 has a rectangular opening on the side facing the locking block 7. The size of the arrow-shaped pin 8 is adapted to the inner size of the rectangular opening. This structure facilitates the insertion installation of the locking housing 6 and the locking block 7, and forms a snap-fit structure that can be quickly installed and removed.
[0028] Please see Figure 4 The mounting plate 3 contacts the lower end of the underground coal hopper side wall of the unloading ditch, and the support pad 5 contacts the impeller feeder housing of the unloading ditch. This structure increases the reliability of the unit baffle 2 installation and improves the sealing effect of the installation.
[0029] Please see Figure 1-3 Two locking shells 6 are provided on one side of the top surface of the unit baffle 2, and two locking blocks 7 are provided on the other side of the top surface of the unit baffle 2. This structure increases the reliability of the locking connection between the two unit baffles 2.
[0030] The implementation principle of this embodiment is as follows: In use, by sequentially connecting the sides of several unit baffles 2, the splicing protrusion 13 of one unit baffle 2 is inserted into the splicing groove 14 of another unit baffle 2. At this time, the locking block 7 of the unit baffle 2 is inserted into the locking shell 6 of another unit baffle 2 through the arrow-shaped pin 8. When the arrow-shaped pin 8 is inserted into the gap between the two fixing frames 9, the arrowhead part of the arrow-shaped pin 8 presses against the protruding abutment 11 at the fixing frame 9, so that the spring 10 inside the fixing frame 9 is in a contracted state, waiting to be abutted. When the head 11 corresponds to the arc groove 12 on the surface of the arrow-shaped pin 8, the abutment 11 connected to the spring 10 and the arc groove 12 of the arrow-shaped pin 8 form a snap-fit structure that can be quickly installed and removed, so that several unit baffles 2 are spliced together to form a sealing baffle body 1. Then, the mounting plate 3 of the sealing baffle body 1 is fixedly connected to the bottom of the coal hopper with bolts, and the support pad 5 of the sealing baffle body 1 is in contact with the housing of the impeller feeder, so that the coal falling from the lower opening of the coal hopper enters the feed port of the impeller feeder and is transported to the belt.
[0031] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A self-locking seal baffle for coal discharge chute, comprising a seal baffle body (1), characterized in that: The sealing baffle body (1) is composed of several unit baffles (2), and each unit baffle (2) has a mounting plate (3) fixed to its right end and a support pad (5) fixed to its left end. A splicing protrusion (13) is provided on one side of each unit baffle (2), and a splicing groove (14) is provided on the other side of each unit baffle (2). A locking shell (6) is welded to the unit baffle (2) near the splicing groove (14). A locking block (7) is welded near the splicing protrusion (13). An arrow-shaped pin (8) is welded to the surface of the locking block (7), and both sides of the arrow-shaped pin (8) are provided with arc grooves (12). Two fixing frames (9) are fixed inside the locking shell (6), and a spring (10) is provided in each fixing frame (9). One end of the spring (10) abuts against a head (11), and one end of the head (11) extends into the arc groove (12) of the arrow-shaped pin (8).
2. The self-locking seal baffle for coal discharge chute according to claim 1, characterized in that: The unit baffle (2) is in a Z-shaped structure with an inclined arrangement. The support pad (5) of the unit baffle (2) is set downwards, and the mounting plate (3) of the unit baffle (2) is set upwards. The mounting plate (3) of the unit baffle (2) has screw holes (4) on its surface.
3. The self-locking seal baffle for coal discharge chute according to claim 1, characterized in that: The end of the abutment (11) away from the fixed frame (9) is an arc-shaped structure, and a limit block is provided at the end of the abutment (11) extending to the inside of the fixed frame (9).
4. The self-locking seal baffle for coal discharge chute according to claim 1, characterized in that: The locking shell (6) has a rectangular opening on the side facing the locking block (7), and the size of the arrow-shaped pin (8) is adapted to the inner size of the rectangular opening.
5. The self-locking seal baffle for coal chute according to claim 1, characterized in that: The mounting plate (3) is in contact with the lower end of the underground coal hopper side wall of the unloading ditch, and the support pad (5) is in contact with the impeller feeder housing of the unloading ditch.
6. The self-locking seal baffle for coal chute according to claim 1, characterized in that: Two locking shells (6) are provided on one side of the top surface of the unit baffle (2), and two locking blocks (7) are provided on the other side of the top surface of the unit baffle (2).