Supporting frame for coal mine construction exploitation

Abstract

The utility model discloses a support frame for coal mine construction mining, which comprises a fixed bottom plate, first mounting plates are symmetrically arranged on two sides of the fixed bottom plate, hydraulic rods are uniformly distributed on the upper portions of the first mounting plates, the tops of the hydraulic rods are fixedly connected with second mounting plates through bolts, and first bayonets are uniformly formed on the upper portions of the second mounting plates. A protective shed is arranged between the second mounting plates, the top of the protective shed is connected with a buffering shed through evenly-distributed buffering assemblies, third mounting plates are symmetrically arranged at the bottom of the inner side of the protective shed, first inserting openings are formed in the third mounting plates, the first inserting openings and the first bayonets are coaxially arranged, and first return springs are fixedly mounted on the upper portions of the first inserting openings. The protective shed can be quickly mounted on the mounting plate II, the mounting progress is accelerated, the time efficiency is saved, and convenient assembly is also realized in the aspect of disassembly or transportation; and the first rib plates are additionally arranged between the hydraulic rods, so that the supporting stability of the hydraulic rods is higher.

Description

Technical Field

[0001] This utility model relates to the field of coal mine protection technology, specifically to a support frame for coal mine construction. Background Technology

[0002] Coal mines are areas where humans extract coal resources in coal-rich areas. They are mainly divided into underground coal mines and open-pit coal mines. The coal extracted from coal mines is processed and used as fuel. During the coal mining process, in order to prevent the mine from collapsing, it is generally necessary to support the top of the mine shaft. Nowadays, support frames are generally used to support the mine shaft.

[0003] Publication (Announcement) No.: CN213298020U discloses a flexible coal mine roadway support device. However, existing coal mine support frames use support rods for single-point support, which leads to limited support positions and unstable support. At the same time, existing support frames are generally fixed structures, which cannot meet the height adaptation requirements of mines at different heights, affecting the construction of the mine and causing certain installation difficulties in transportation and assembly.

[0004] Therefore, a support frame for coal mine construction is needed. Utility Model Content

[0005] In view of the problems existing in the prior art, this utility model provides a support frame for coal mine construction, aiming to improve and solve the aforementioned technical problems.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a support frame for coal mine construction includes a fixed base plate, with mounting plates symmetrically arranged on both sides of the fixed base plate. Hydraulic rods are evenly distributed on the upper part of the mounting plates, and the tops of the hydraulic rods are fixedly connected to mounting plates 2 by bolts. The upper part of the mounting plates 2 is evenly provided with slots 1, and a protective canopy is set between the mounting plates 2. The top of the protective canopy is connected to a buffer canopy through evenly distributed buffer components. Mounting plates 3 are symmetrically arranged on the bottom inner side of the protective canopy. Mounting plates 3 are provided with insertion slots 1, which are coaxially arranged with the slots. A return spring 1 is fixedly installed on the upper part of the insertion slots 1, and a handle 1 is fixedly connected to the top of the return spring 1. The bottom of the handle 1 is set as a pin, which extends through the insertion slots 1 and into the slots 1 to form a protective canopy, which is fixedly installed on the upper part of the mounting plates 2 by the pin.

[0007] Preferably, the second mounting plate has symmetrically arranged limit boxes at both ends in the horizontal direction. The inner wall of the limit box away from the second mounting plate is set as a locking block 1. The middle of the locking block 1 is formed with a wedge-shaped inclined surface. The second mounting plate has rotating shaft bases at both ends in the horizontal direction. A bent locking plate is rotatably mounted on the rotating shaft base. A locking block 2 is set at the bottom end of the bent locking plate. One side of the locking block 2 is set as an inclined surface 1. A sliding rod 1 is hinged to the surface of the bent locking plate opposite to the third mounting plate. The horizontal end face of the third mounting plate is set as a limit base. First, the sliding rod 1 is movably inserted into the through hole in the middle of the limiting base 1. The limiting base 1 is fixedly connected to the bending clamping plate with a return spring 3. The return spring 3 is sleeved on the outside of the sliding rod 1. When the protective canopy is installed, the inclined surface 1 slides against the wedge-shaped inclined surface, and the return spring 3 is compressed. When the clamping block 2 is engaged at the bottom of the wedge-shaped inclined surface, the elastic action of the return spring 3 keeps the clamping block 2 engaged at the bottom of the wedge-shaped inclined surface, thus fixing the protective canopy on the mounting plate 2.

[0008] Preferably, the buffer assembly includes a fixed base 1, a buffer shaft, and a return spring 2. The bottom sides of the buffer canopy are symmetrically provided with fixed base 2, and the top of the protective canopy is symmetrically and equidistantly provided with multiple fixed base 1s. Buffer holes are opened on the top of the fixed base 1s, and buffer shafts are uniformly provided on the bottom of the fixed base 2s. The buffer shafts are movably inserted into the buffer holes, and return spring 2s are sleeved on the outside of the buffer shafts. The return spring 2s are abutted between the fixed base 1s and the fixed base 2s.

[0009] Preferably, stiffening plates are added between the hydraulic rods to provide stronger and more stable support.

[0010] Preferably, a second stiffener is installed between the hydraulic rod and the mounting plate.

[0011] Preferably, the thickness of mounting plate two is at least three times greater than the thickness of mounting plate three, and the first slot is set through mounting plate two.

[0012] In summary, this utility model provides a support frame for coal mine construction, enabling the rapid installation of the protective canopy on the second mounting plate, improving installation progress and saving time. It also facilitates assembly for disassembly or transportation. By setting a buffer component on the upper part of the protective canopy, and connecting the buffer canopy through the buffer component, it achieves protection and shielding against falling coal blocks. The buffer component also acts as a buffer against falling impacts, as well as a buffer and shielding function for the protective canopy, thus serving as a support frame for safe coal mining.

[0013] The buffer shaft slides up and down inside the buffer hole, limiting the extension and retraction direction of the return spring, thus playing a directional buffering role and improving the impact protection of the buffer canopy and the safe use of the protective canopy. In order to strengthen the support of the hydraulic rods, stiffening plates are added between the hydraulic rods to make the support of the hydraulic rods more stable. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the support frame structure used in coal mine construction according to this utility model;

[0015] Figure 2 This is a schematic diagram of the installation structure of the protective shed and mounting plate 2 of this utility model;

[0016] Figure 3 This is a schematic diagram of the mounting plate (section 3) and the insertion port (section 1) of this utility model.

[0017] Figure 4 This is a schematic diagram of the installation structure of the protective shed and buffer shed of this utility model;

[0018] Figure 5 This is a schematic diagram of the support frame structure used in coal mine construction according to this utility model (Example 2);

[0019] Figure 6 This is a cross-sectional structural diagram of the support frame used in coal mine construction according to this utility model (Example 2);

[0020] Figure 7 This is the utility model Figure 6 A schematic diagram of the elastic snap-fit ​​installation structure between mounting plate 3 and mounting plate 2 at point A;

[0021] In the diagram: 1. Fixed base plate; 2. Mounting plate 1; 3. Hydraulic rod; 4. Mounting plate 2; 5. Clamp 1; 6. Protective canopy; 7. Buffer assembly; 11. Buffer canopy; 12. Mounting plate 3; 13. Insert 1; 14. Return spring 1; 15. Handle 1; 16. Pin; 17. Fixed base 1; 21. Buffer shaft; 22. Return spring 2; 23. Fixed base 2; 24. Buffer hole; 25. Rib plate 1; 26. Rib plate 2; 27. Limiting box; 31. Clamping block 1; 32. Wedge-shaped inclined surface; 33. Rotating shaft base; 34. Bending clamping plate; 35. Clamping block 2; 36. Inclined surface 1; 37. Slide rod 1; 41. Limiting base 1; 42. Return spring 3. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] like Figures 1 to 7 As shown: Example

[0024] This utility model is a support frame for coal mine construction. It solves the technical problems of the single-point installation structure in the existing technology, which causes great limitations in the installation of coal mine support frames and great danger to support safety. The fixed installation method cannot be adapted to coal mine tunnels of different heights. Furthermore, the protective sheds and buffer sheds cannot adopt a quick-disassembly and installation structure, resulting in inconvenient transportation and installation and long installation time.

[0025] The technical structure adopted in this patent is as follows: It includes a fixed base plate 1, and mounting plates 2 are symmetrically arranged on both sides of the fixed base plate 1. Hydraulic rods 3 are evenly distributed on the upper part of the mounting plates 2. The top of the hydraulic rods 3 is fixedly connected to the mounting plate 4 by bolts. The upper part of the mounting plate 4 is evenly opened with slots 5. A protective canopy 6 is set between the mounting plates 2 and 4. The top of the protective canopy 6 is connected to the buffer canopy 11 by evenly distributed buffer components 7. The bottom of the inner side of the protective canopy 6 is symmetrically arranged with mounting plates 3 12. The mounting plate 3 12 is opened with a socket 13. The socket 13 is coaxial with the slot 5. A return spring 14 is fixedly installed on the upper part of the socket 13. The top of the return spring 14 is fixedly connected to the handle 15. The bottom of the handle 15 is set as a pin 16. The pin 16 passes through the socket 13 and extends into the slot 5 to form the protective canopy 6, which is fixedly installed on the upper part of the mounting plate 4 by the pin 16.

[0026] Specifically: the fixed base plate 1 provides support for the overall coal mining support frame. Hydraulic rods 3 are installed on both sides of the fixed base plate 1 via mounting plates 2. The double-row hydraulic rod structure 3 solves the problem of single-point support structure installation and provides protection and support strength for the coal mining support frame. The height of the protective canopy 6 and buffer canopy 11 can be adjusted by raising and lowering the hydraulic rods 3 to adapt to different coal mine tunnel heights for protection, thus preventing coal blocks from falling and injuring construction workers. Mounting plates 3 12 are symmetrically installed on the inner bottom of the protective canopy 6, and return springs are installed on mounting plates 3 12. Spring 14 and pin 16 work together to limit the insertion and installation of bayonet 15 and socket 13, enabling the protective canopy 6 to be quickly installed on mounting plate 2 4, improving installation progress and saving time. It also facilitates assembly during disassembly or transportation. A buffer component 7 is set on the upper part of the protective canopy 6, and the buffer canopy 11 is connected to the buffer component 7 to protect and shield falling coal blocks. The buffer component 7 also buffers the impact of falling coal blocks, and provides buffer protection for the buffer canopy 11 and shield protection for the protective canopy 6, thus serving as a support frame for safe coal mining. Example

[0027] Limiting boxes 27 are symmetrically arranged at both ends of the second mounting plate 4. The inner wall of the limiting box 27 away from the second mounting plate 4 is set as a locking block 31. The middle of the locking block 31 is formed by a wedge-shaped inclined surface 32. The two ends of the third mounting plate 12 are set as rotating shaft bases 33. The rotating shaft bases 33 are rotatably mounted with bent locking plates 34. The bottom end of the bent locking plates 34 is set with a locking block 35. One side of the locking block 35 is set as an inclined surface 36. The surface of the bent locking plates 34 opposite to the third mounting plate 12 is hinged to a sliding rod 37. The lateral end face of the third mounting plate 12 is set as the limiting base 1. 41. The sliding rod 37 is movably inserted into the through hole in the middle of the limiting base 41. The limiting base 41 and the bending clamping plate 34 are fixedly connected to the return spring 42. The return spring 42 is sleeved on the outside of the sliding rod 37. When the protective canopy 6 is installed, the inclined surface 36 slides against the wedge-shaped inclined surface 32. The return spring 42 is compressed. When the clamping block 35 is engaged at the bottom of the wedge-shaped inclined surface 32, the elastic action of the return spring 42 keeps the clamping block 35 engaged at the bottom of the wedge-shaped inclined surface 32, thus fixing the protective canopy 6 on the mounting plate 4.

[0028] Specifically, to ensure the protective canopy 6 is securely installed on the mounting plate 2 4, after the protective canopy 6 is in place on the mounting plate 2 4, the bent clamping plate 34, due to the gravity of the protective canopy 6, causes the inclined surface 1 36 to slide against the wedge-shaped inclined surface 32. When the clamping block 2 35 remains engaged at the bottom of the wedge-shaped inclined surface 32, the elastic action of the return spring 3 42 forces the clamping block 2 35 to engage at the bottom of the wedge-shaped inclined surface 32, forming a locking position, thus ensuring the protective canopy 6 is securely installed on the mounting plate 2 4. During disassembly, pressing the bent clamping plate 34 causes the return spring 3 42 to retract, lifting the protective canopy 6 and completing the disengagement of the clamping block 2 35 from the bottom of the wedge-shaped inclined surface 32, achieving the purpose of quick disassembly of the protective canopy 6.

[0029] Preferably, the buffer assembly 7 includes a fixed base 17, a buffer shaft 21, and a return spring 22. The bottom sides of the buffer canopy 11 are symmetrically provided with fixed bases 23. The top of the protective canopy 6 is symmetrically and equidistantly provided with multiple fixed bases 17. The top of the fixed base 17 is provided with a buffer hole 24. The bottom of the fixed base 23 is uniformly provided with buffer shafts 21. The buffer shafts 21 are movably inserted into the inside of the buffer holes 24. The outside of the buffer shafts 21 is sleeved with a return spring 22. The return spring 22 is abutted between the fixed base 17 and the fixed base 23.

[0030] Specifically, a buffer assembly 7 is installed between the protective shed 6 and the buffer shed 11. The buffer structure of the buffer assembly 7 is as follows: when impacted by falling coal, the impact force is elastically buffered by the return spring 22, and the buffer shaft 21 slides up and down inside the buffer hole 24, which limits the extension and retraction direction of the return spring 22, thus playing a directional buffering role, improving the impact buffer protection of the buffer shed 11 and the safe use protection of the protective shed 6.

[0031] Preferably, to enhance the support of the hydraulic rods 3, stiffening plates 25 are added between the hydraulic rods 3 to provide stronger and more stable support.

[0032] Preferably, to reinforce the hydraulic rod 3, a stiffening plate 26 is installed between the hydraulic rod 3 and the mounting plate 2 in the axial direction.

[0033] Preferably, in order to ensure that the pin 16 is firmly inserted and fixed to the socket 13 and the bayonet 5, a mounting plate 2 4 with a larger thickness is preferred. Specifically, the thickness of the mounting plate 2 4 is at least three times greater than the thickness of the mounting plate 3 12, and the bayonet 5 is set through the mounting plate 2 4.

[0034] The embodiments described in this utility model are for illustrative purposes only and do not constitute a limitation on the scope of the claims. Other substantially equivalent substitutions that can be conceived by those skilled in the art are all within the protection scope of this utility model.

Claims

1. A support frame for use in the construction of a coal mine, characterised in that, The system includes a fixed base plate (1), with mounting plates symmetrically arranged on both sides of the fixed base plate (1) as mounting plates one (2). Hydraulic rods (3) are evenly distributed on the upper part of the mounting plates one (2). The top of the hydraulic rods (3) is fixedly connected to mounting plates two (4) by bolts. The upper part of mounting plates two (4) is evenly opened with slots one (5). A protective canopy (6) is set between the mounting plates two (4). The top of the protective canopy (6) is connected to the buffer canopy (11) by evenly distributed buffer components (7). The bottom inner side of the protective canopy (6) is symmetrically arranged with mounting plates one (5). Mounting plate three (12) has a socket one (13) on it. The socket one (13) is coaxial with the bayonet one (5). A return spring one (14) is fixedly installed on the upper part of the socket one (13). The top of the return spring one (14) is fixedly connected to the handle one (15). The bottom of the handle one (15) is set as a pin (16). The pin (16) passes through the socket one (13) and extends into the bayonet one (5) to form a protective canopy (6). It is fixedly installed on the upper part of the mounting plate two (4) through the pin (16).

2. The support frame for coal mine construction according to claim 1, characterized in that, Mounting plate 2 (4) has symmetrically arranged limit boxes (27) at both ends in the horizontal direction. The inner wall of the limit box (27) away from mounting plate 2 (4) is set as a locking block 1 (31). The middle of the locking block 1 (31) is opened as a wedge-shaped inclined surface (32). Mounting plate 3 (12) has pivot bases (33) at both ends in the horizontal direction. The pivot bases (33) are rotatably mounted with bent locking plates (34). The bottom end of the bent locking plates (34) is set with a locking block 2 (35). One side of the locking block 2 (35) is set as an inclined surface 1 (36). The surface of the bent locking plates (34) opposite to the mounting plate 3 (12) is hinged to a sliding rod 1 (37). The horizontal end face of mounting plate 3 (12) is set as a limit base 1. (41) The sliding rod (37) is movably inserted into the through hole in the middle of the limiting base (41). The limiting base (41) and the bending plate (34) are fixedly connected to the return spring (42). The return spring (42) is sleeved on the outside of the sliding rod (37). When the protective shed (6) is installed, the inclined surface (36) and the wedge-shaped inclined surface (32) slide against each other. The return spring (42) is compressed. When the second block (35) is engaged at the bottom of the wedge-shaped inclined surface (32), the return spring (42) acts elastically to keep the second block (35) engaged at the bottom of the wedge-shaped inclined surface (32), thus fixing the protective shed (6) on the mounting plate (4).

3. The support frame for coal mine construction according to claim 1, characterized in that, The buffer assembly (7) includes a fixed base (17), a buffer shaft (21), and a return spring (22). The bottom sides of the buffer canopy (11) are symmetrically set with fixed bases (23). The top of the protective canopy (6) is symmetrically and equidistantly set with multiple fixed bases (17). The top of the fixed base (17) has a buffer hole (24). The bottom of the fixed base (23) is uniformly set with a buffer shaft (21). The buffer shaft (21) is movably inserted into the inside of the buffer hole (24). The outside of the buffer shaft (21) is sleeved with a return spring (22). The return spring (22) is abutted between the fixed base (17) and the fixed base (23).

4. The support frame for coal mine construction according to claim 1, characterized in that, The hydraulic rods (3) are reinforced by adding a stiffening plate (25) to provide stronger support for the hydraulic rods (3).

5. The support frame for coal mine construction according to claim 1, characterized in that, A stiffening plate 2 (26) is installed between the axial direction of the hydraulic rod (3) and the mounting plate 1 (2).

6. A support frame for coal mine construction according to claim 1, characterized in that, The thickness of mounting plate 2 (4) is at least three times greater than the thickness of mounting plate 3 (12), and the first slot (5) is set through mounting plate 2 (4).

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