A protection device for a one-way lock of a forepoling support post

Abstract

This utility model relates to the technical field of one-way lock protection devices, and in particular to a one-way lock protection device for a pre-support column. It includes a protective steel plate with an installation mechanism running through its inner side for fixing the protective steel plate to the column. A storage groove is provided on the inner wall of the protective steel plate. It also includes a folding steel plate with a rotatable folding plate rotatably mounted on the inner wall of the protective steel plate. A laterally sliding triangular support member is provided on the inner wall of the protective steel plate to support the bottom of the folding steel plate. A retraction mechanism and a limiting mechanism are also provided on the inner wall of the protective steel plate. This utility model, a one-way lock protection device for a pre-support column, forms a stable and robust protective structure after unfolding through the elastic reset function of the triangular support member and the retraction mechanism, combined with the double limiting and locking of the limiting mechanism. This effectively isolates the one-way lock between the corner of the wall and the column, preventing damage to the one-way lock caused by external forces such as coal blocks or collisions, thus achieving a stable protective effect.

Description

Technical Field

[0001] This utility model relates to the technical field of one-way lock protection devices, and in particular to a one-way lock protection device for an advanced support column. Background Technology

[0002] In the daily production scenario of a fully mechanized mining face, the one-way locks of the advance support columns are usually set in an exposed manner. Due to the high pressure and severe spalling of the working face, a large number of large coal blocks are easily generated. When the coal blocks are transported by the transfer machine, they often fall into the non-pedestrian side area due to factors such as equipment vibration and coal flow impact. When the one-way lock protection device is in use, large pieces of coal directly impact or crush the exposed one-way lock, causing its outer shell to deform and its internal structure to be damaged. This prevents the advanced support from achieving its self-locking function, creating a safety hazard. Traditional protection methods lack targeted structures and are difficult to effectively isolate the one-way lock between the coal impact and the column. Furthermore, they are difficult to install stably in narrow corners and column spaces, becoming a key technical pain point that restricts safe production.

[0003] Therefore, to address the issue of difficulty in achieving stable protection in confined spaces, a one-way locking protection device for the advanced support column can be designed. When using this device, first pull out the limiting mechanism to release the vertical limit, then pull the triangular support member outwards. At this point, the folded steel plate loses its lateral constraint. Then, after the folded steel plate is flipped upwards 90°, the triangular support member is released. The retraction mechanism moves the triangular support member back to the bottom position of the folded steel plate to form support. The limiting mechanism is then inserted again to lock the triangular support member vertically, thus forming a stable protective structure between the protective steel plate and the folded steel plate. Installation... When in use, the one-way lock is installed between the corner of the wall and the column. The stable protective structure is placed over the one-way lock of the column of the advanced support. The inner wall of the protective structure is in close contact with the corner of the wall. Finally, the device is stably connected to the column through the installation mechanism. In summary, the device adopts a folding design. When not in use, the folding steel plate is stored in the storage slot. It is compact and easy to carry and transport. When unfolded, the elastic reset function of the triangular support and the retraction mechanism, combined with the double limit locking of the limit mechanism, forms a stable and solid protective structure. It effectively isolates the one-way lock between the corner of the wall and the column, avoiding damage to the one-way lock caused by external forces such as coal blocks and collisions, and achieving a stable protective effect. Utility Model Content

[0004] To overcome the problem that the one-way lock of the advanced support column is usually exposed when the one-way lock is used, when the coal is transported by the transfer machine, the large coal pieces directly hit or crush the exposed one-way lock, causing the outer shell to deform and the internal structure to be damaged. Therefore, it is inconvenient to achieve stable protection when used in a confined space.

[0005] The technical solution of this utility model is as follows: a protective device for a one-way lock of an advanced support column, including a protective steel plate, an installation mechanism through which the protective steel plate is installed to install and fix the protective steel plate to the column, a storage groove opened in the inner wall of the protective steel plate, and a folding steel plate, a rotatable folding steel plate rotatably arranged in the inner wall of the protective steel plate, a laterally sliding triangular support member arranged in the inner wall of the protective steel plate to support the bottom of the folding steel plate, a retraction mechanism arranged in the inner wall of the protective steel plate, and a limiting mechanism arranged in the inner wall of the protective steel plate.

[0006] Preferably, when the one-way lock protective device for the advanced support column is in use, first pull out the limiting mechanism to release the vertical limit, then pull the triangular support member outward. At this time, the folded steel plate loses its lateral constraint. Then, after the folded steel plate is flipped upward 90°, the triangular support member is released. The retraction mechanism drives the triangular support member to move back to the bottom position of the folded steel plate to form support. The limiting mechanism is then inserted again to lock the triangular support member vertically, so that the protective steel plate and the folded steel plate form a stable protective structure. During installation, the one-way lock is set between the corner of the wall and the column, covering the stable protective structure. The one-way lock is located on the periphery of the advanced support column. The inner wall of the protective structure is tightly attached to the corner of the wall. Finally, the device is securely connected to the column through the installation mechanism. In summary, the device adopts a folding design. When not in use, the folding steel plate is stored in the storage slot. It is compact and easy to carry and transport. When unfolded, the elastic reset function of the triangular support and the retraction mechanism, combined with the double limit locking of the limit mechanism, forms a stable and secure protective structure. It effectively isolates the one-way lock between the corner of the wall and the column, avoiding damage to the one-way lock caused by external forces such as coal blocks and collisions, and achieving a stable protective effect.

[0007] As a preferred embodiment, the installation mechanism includes U-bolts and fastening nuts. U-bolts are installed through the inside of the protective steel plate and are sleeved on the side wall of the column. Fastening nuts are sleeved on both threaded ends of the U-bolts and are threadedly connected to the threaded ends of the U-bolts.

[0008] Preferably, a rotating shaft is fixedly installed at the upper end of the folding steel plate, and the two ends of the rotating shaft are rotatably connected to the two sides of the inner wall of the storage groove.

[0009] Preferably, the shrinking mechanism includes a guide groove, a guide rod, a guide seat, and a shrinking spring. Two sets of guide grooves are opened on the inner wall of the protective steel plate. A guide rod is fixedly installed inside each set of guide grooves. A guide seat is slidably sleeved on the side wall of each set of guide rods. A shrinking spring is fixedly installed between the inner wall of each set of guide seats and the inner wall of the guide groove.

[0010] Preferably, one end of the contraction spring is fixedly connected to the inner wall of the guide seat, the other end of the contraction spring is fixedly connected to the inner wall of the guide groove, and the side wall of the triangular support is fixedly connected to the outer walls of the two sets of guide seats.

[0011] As a preferred embodiment, the limiting mechanism includes a fixed cylinder and a limiting post. The fixed cylinder is fixedly installed on the inner wall of the protective steel plate, and the limiting post is embedded inside the fixed cylinder. The side wall of the limiting post is in contact with the side wall of the guide seat.

[0012] The beneficial effects of this utility model are: 1. When using the one-way lock protective device on the advanced support column, first pull out the limiting mechanism to release the vertical limit, then pull the triangular support piece outward. At this time, the folded steel plate loses its lateral constraint. Then, flip the folded steel plate upward 90° and release the triangular support piece. The retraction mechanism drives the triangular support piece to move back to the bottom position of the folded steel plate to form support. Insert the limiting mechanism again to lock the triangular support piece vertically, so that the protective steel plate and the folded steel plate form a stable protective structure. During installation, the one-way lock is set between the corner of the wall and the column, covering the stable protective structure. The protective structure is designed to fit snugly against the corner of the wall, with the inner wall of the protective structure closely attached to the wall corner. Finally, the device is securely connected to the column through the installation mechanism. In summary, this device adopts a folding design. When not in use, the folded steel plate is stored in the storage slot, making it compact and easy to carry and transport. When unfolded, the device forms a stable and secure protective structure through the elastic reset function of the triangular support and the retraction mechanism, combined with the double limit locking of the limit mechanism. This effectively isolates the one-way lock between the corner of the wall and the column, preventing damage to the one-way lock caused by external forces such as coal blocks or collisions, thus achieving a stable protective effect.

[0013] 2. Firstly, the installation mechanism adopts a U-bolt through-type fixing method, which is suitable for the installation requirements of columns with different diameters, and the tightening nut can adjust the preload to ensure that the device is installed firmly and reliably. Secondly, the retraction mechanism ensures that the triangular support moves smoothly without jamming through the sliding cooperation between the guide rod and the guide seat, thus improving the smoothness of operation. Attached Figure Description

[0014] Figure 1 The diagram shown is a first three-dimensional structural schematic of a protective device for a one-way lock on an advanced support column according to this utility model. Figure 2 The diagram shown is a first side perspective three-dimensional structural schematic of a protective device for a one-way lock on an advanced support column according to this utility model. Figure 3 The diagram shown is a three-dimensional structural diagram of the retraction mechanism and triangular support component of a protective device for a one-way lock on an advanced support column according to this utility model. Figure 4 The diagram shown is a three-dimensional structural diagram of the combination of the retraction mechanism and the limiting mechanism of a protective device for a one-way lock on an advanced support column according to this utility model. Explanation of reference numerals in the attached drawings: 1. Protective steel plate; 2. Storage groove; 3. Folding steel plate; 4. Triangular support; 5. U-bolt; 6. Fastening nut; 7. Rotating shaft; 8. Guide groove; 9. Guide rod; 10. Guide seat; 11. Retraction spring; 12. Fixing cylinder; 13. Limiting post. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Please see Figure 1 and Figure 2 This utility model provides an embodiment: a protective device for a one-way lock on an advanced support column, including a protective steel plate 1, an installation mechanism through which the protective steel plate 1 is installed to install and fix the protective steel plate 1 to the column, a storage groove 2 on the inner wall of the protective steel plate 1, and a folding steel plate 3, a rotatable folding steel plate 3 rotatably installed on the inner wall of the protective steel plate 1, a laterally sliding triangular support member 4 on the inner wall of the protective steel plate 1 for supporting the bottom of the folding steel plate 3, a retraction mechanism on the inner wall of the protective steel plate 1, and a limiting mechanism on the inner wall of the protective steel plate 1.

[0017] Please see Figure 1 and Figure 2 The installation mechanism includes U-bolts 5 and fastening nuts 6. U-bolts 5 are installed through the inside of the protective steel plate 1. The U-bolts 5 are sleeved on the side wall of the column. Fastening nuts 6 are sleeved on both threaded ends of the U-bolts 5. The fastening nuts 6 are threadedly connected to the threaded ends of the U-bolts 5. The stable protective structure is covered around the one-way lock of the advanced support column. The inner wall of the protective structure is close to the corner of the wall. The U-bolts 5 are sleeved on the side wall of the column and penetrate the protective steel plate 1. The fastening nuts 6 are tightened and fixed to the threaded ends of the U-bolts 5, thus completing the stable connection between the device and the column.

[0018] Please see Figure 3 and Figure 4A rotating shaft 7 is fixedly installed at the upper end of the folding steel plate 3. The two ends of the rotating shaft 7 are rotatably connected to the two sides of the inner wall of the storage groove 2. The folding steel plate 3 can be adjusted and rotated through the rotating shaft 7. The shrinking mechanism includes a guide groove 8, a guide rod 9, a guide seat 10, and a shrinking spring 11. Two sets of guide grooves 8 are opened on the inner wall of the protective steel plate 1. A guide rod 9 is fixedly installed inside each set of guide grooves 8. A guide seat 10 is slidably sleeved on the side wall of each set of guide rods 9. A shrinking spring 11 is fixedly installed between the inner wall of each set of guide seats 10 and the inner wall of the guide groove 8. The folded steel plate 3 is embedded in the storage groove 2 of the protective steel plate 1. The retraction spring 11 drives the triangular support 4 to laterally abut against the bottom of the folded steel plate 3 through the guide seat 10 to achieve the limit. One end of the retraction spring 11 is fixedly connected to the inner wall of the guide seat 10, and the other end of the retraction spring 11 is fixedly connected to the inner wall of the guide groove 8. The side wall of the triangular support 4 is fixedly connected to the outer wall of the two sets of guide seats 10. When the retraction spring 11 resets, it drives the guide seat 10 to slide in the opposite direction, causing the triangular support 4 to move back to the bottom position of the folded steel plate 3 to form support.

[0019] Please see Figure 2 and Figure 4 The limiting mechanism includes a fixed cylinder 12 and a limiting post 13. The fixed cylinder 12 is fixedly installed on the inner wall of the protective steel plate 1. The limiting post 13 is embedded inside the fixed cylinder 12. The side wall of the limiting post 13 fits and abuts against the side wall of the guide seat 10. The limiting post 13 is inserted into the fixed cylinder 12 to vertically limit the guide seat 10.

[0020] When the one-way locking protection device for the advanced support column is in use, the working principle of the one-way locking protection device for the advanced support column of this utility model is as follows: When the device is not in use, the folded steel plate 3 is embedded in the storage groove 2 of the protective steel plate 1, and the retraction spring 11 drives the triangular support 4 to laterally abut against the bottom of the folded steel plate 3 through the guide seat 10 to achieve the limit. The limiting column 13 is inserted into the fixed cylinder 12 to vertically limit the guide seat 10.

[0021] During the unfolding operation, first pull out the limiting post 13 to release the vertical limit, then pull the triangular support 4 outward. This causes the guide seat 10 to slide smoothly along the guide rod 9 in the guide groove 8 and stretch the contraction spring 11. At this time, the folded steel plate 3 loses its lateral constraint. After the folded steel plate 3 is rotated 90° upward around the rotating axis 7, the triangular support 4 is released. The contraction spring 11 resets and drives the guide seat 10 to slide in the opposite direction, causing the triangular support 4 to move back to the bottom position of the folded steel plate 3 to form a support. Then, the limiting post 13 is inserted again into the fixed cylinder 12. The vertical limit is locked through the linkage between the guide seat 10 and the triangular support 4, so that the protective steel plate 1 and the folded steel plate 3 form a stable protective structure.

[0022] During installation, the one-way lock is set between the corner of the wall and the column. The stable protective structure is placed around the one-way lock of the advanced support column. The inner wall of the protective structure is close to the corner of the wall. The U-bolt 5 is sleeved on the side wall of the column and passes through the protective steel plate 1. The device is fixed by tightening the fastening nut 6 and the threaded end of the U-bolt 5, thus completing the stable connection between the device and the column.

[0023] In summary, firstly, the device adopts a folding design. When not in use, the folding steel plate 3 is stored in the storage slot 2, making it compact and easy to carry and transport. Secondly, after unfolding, the triangular support 4 and the elastic reset function of the retraction spring 11, combined with the double limit locking of the limiting mechanism, form a stable and secure protective structure, effectively isolating the one-way lock between the corner and the column, and preventing damage to the one-way lock caused by external forces such as coal blocks or collisions. Thirdly, the installation mechanism adopts a through-type fixing method with U-bolts 5, which is suitable for the installation requirements of columns with different diameters, and the tightening nut 6 can adjust the preload to ensure that the device is installed firmly and reliably. Fourthly, the retraction mechanism ensures that the triangular support 4 moves smoothly without jamming through the sliding cooperation of the guide rod 9 and the guide seat 10, improving the smoothness of operation. Fifthly, the limiting mechanism adopts a plug-in design of the fixed cylinder 12 and the limiting column 13, which is simple and quick to operate, and realizes the rapid switching between unfolding and storage.

[0024] In summary, the overall device achieves a balance between protective function and portability through structural optimization, effectively extends the service life of the one-way lock, and ensures the safe and stable operation of the advanced support system, demonstrating significant economic benefits and safety value.

[0025] Through the above steps, when the one-way lock protective device of the advanced support column is in use, first pull out the limiting mechanism to release the vertical limit, then pull the triangular support 4 outward. At this time, the folded steel plate 3 loses its lateral constraint. Then, after the folded steel plate 3 is flipped upward 90°, the triangular support 4 is released. The retraction mechanism drives the triangular support 4 to move back to the bottom position of the folded steel plate 3 to form support. Insert the limiting mechanism again to lock the triangular support 4 vertically, so that the protective steel plate 1 and the folded steel plate 3 form a stable protective structure. During installation, the one-way lock is set between the corner of the wall and the column to ensure stability. The protective structure is installed around the one-way lock of the advanced support column. The inner wall of the protective structure is tightly attached to the corner of the wall. Finally, the device is securely connected to the column through the installation mechanism. In summary, the device adopts a folding design. When not in use, the folding steel plate 3 is stored in the storage slot 2. It is compact and easy to carry and transport. When unfolded, the triangular support 4 and the elastic reset function of the retraction mechanism, together with the double limit locking of the limit mechanism, form a stable and secure protective structure. This effectively isolates the one-way lock between the corner of the wall and the column, preventing damage to the one-way lock caused by external forces such as coal blocks or collisions, thus achieving a stable protective effect.

[0026] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A protective device for a one-way lock on an advanced support column, comprising a protective steel plate (1), wherein an installation mechanism is provided through the inner side of the protective steel plate (1) for installing and fixing the protective steel plate (1) to the column, and a storage groove (2) is provided on the inner wall of the protective steel plate (1), characterized in that: It also includes a folding steel plate (3), a rotatable folding steel plate (3) is rotatably provided on the inner wall of the protective steel plate (1), a laterally sliding triangular support (4) is provided on the inner wall of the protective steel plate (1) to support the bottom of the folding steel plate (3), a shrinking mechanism is provided on the inner wall of the protective steel plate (1), and a limiting mechanism is provided on the inner wall of the protective steel plate (1).

2. The protective device for a one-way lock on an advanced support column according to claim 1, characterized in that: The installation mechanism includes U-bolts (5) and fastening nuts (6). U-bolts (5) are installed through the inside of the protective steel plate (1). The U-bolts (5) are sleeved on the side wall of the column. Fastening nuts (6) are sleeved on both threaded ends of the U-bolts (5). The fastening nuts (6) are threadedly connected to the threaded ends of the U-bolts (5).

3. The protective device for a one-way lock on an advanced support column according to claim 1, characterized in that: A rotating shaft (7) is fixedly installed at the upper end of the folded steel plate (3), and the two ends of the rotating shaft (7) are rotatably connected to the two sides of the inner wall of the storage groove (2).

4. The protective device for a one-way lock on an advanced support column according to claim 1, characterized in that: The retraction mechanism includes a guide groove (8), a guide rod (9), a guide seat (10), and a retraction spring (11). Two sets of guide grooves (8) are opened on the inner wall of the protective steel plate (1). A guide rod (9) is fixedly installed inside each set of guide grooves (8). A guide seat (10) is slidably sleeved on the side wall of each set of guide rods (9). A retraction spring (11) is fixedly installed between the inner wall of each set of guide seats (10) and the inner wall of the guide groove (8).

5. A protective device for a one-way lock on an advanced support column according to claim 4, characterized in that: One end of the contraction spring (11) is fixedly connected to the inner wall of the guide seat (10), and the other end of the contraction spring (11) is fixedly connected to the inner wall of the guide groove (8). The side wall of the triangular support (4) is fixedly connected to the outer wall of the two sets of guide seats (10).

6. A protective device for a one-way lock on an advanced support column according to claim 4, characterized in that: The limiting mechanism includes a fixed cylinder (12) and a limiting post (13). The fixed cylinder (12) is fixedly installed on the inner wall of the protective steel plate (1). The limiting post (13) is embedded inside the fixed cylinder (12). The side wall of the limiting post (13) is in contact with the side wall of the guide seat (10).

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