Roadway supporting structure for mining

Abstract

The utility model relates to the technical field of mining equipment, in particular to a mining roadway supporting structure which comprises a base. A positioning mechanism is arranged on the base and comprises two supporting seats, the two supporting seats are symmetrically fixed to the base, a positioning frame is connected to the supporting seats in a sliding mode, positioning blocks are connected to the interiors of the supporting seats in a sliding mode, and buffer springs are fixedly connected to one sides of the positioning blocks. The multiple sets of positioning blocks can automatically move to the bottom end of the positioning frame after the positioning frame moves upwards and is adjusted, auxiliary supporting and positioning are conducted on the positioning frame, and therefore the safety risk caused by falling of the supporting top due to roadway collapse is reduced; and the broken positioning blocks are stacked to limit the falling of the positioning frame, so that the falling distance of the supporting top is reduced, and the safety protection effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of mining equipment technology, specifically to a roadway support structure for mining. Background Technology

[0002] In mining engineering, a roadway refers to a man-made passage or space excavated for the extraction of underground mineral resources. It is one of the main infrastructures of an underground mine, serving multiple functions including transportation, ventilation, personnel passage, resource extraction, and safety assurance. Roadway support structures are indispensable and crucial equipment in mining production; their main function is to provide sufficient support to resist deformation and damage to the surrounding rock, ensure the stability of the roadway, and protect the safety of miners and equipment.

[0003] To adapt the protective structure to roadways of different heights, most existing support structures adopt adjustable structures. For example, the utility model with publication number CN222333815U discloses a mining roadway support device. In this solution, the height of the lifting rod can be adjusted according to the needs through the cooperation of the first threaded rod, the lifting rod, the first rotating shaft, the worm, the second rotating shaft and the worm wheel, thereby facilitating the installation and disassembly of the mining roadway support device.

[0004] However, the above-mentioned scheme only uses a single row of bolts to position the support structure after adjustment. When there is a risk of roadway collapse, the small number of bolts cannot effectively support the support structure, posing a significant safety hazard. Therefore, we propose a roadway support structure for mining. Utility Model Content

[0005] The purpose of this utility model is to provide a roadway support structure for mining, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A support structure for mining roadways, including a base;

[0008] The base is provided with a positioning mechanism, which includes two support seats. The two support seats are symmetrically fixed on the base. A positioning frame is slidably connected to the support seat. A positioning block is slidably connected inside the support seat. A buffer spring is fixedly connected to one side of the positioning block.

[0009] Preferably, the support base has a sliding groove on its inner side, the positioning block is slidably connected inside the sliding groove, the positioning frame includes a support component at the top and a drive component at the bottom, one side of the top of the drive component has an arc-shaped structure, and the top of the positioning frame passes through the support base and is fixedly connected to a support top.

[0010] Preferably, a piston cylinder is fixedly connected inside the support base, and a piston rod is slidably connected inside the piston cylinder, with the end of the piston rod fixedly connected to a buffer spring.

[0011] Preferably, a connecting pipe is fixedly connected to the end of the piston rod, the piston cylinders are interconnected through the connecting pipe, and a sealing plug is connected to the end of the connecting pipe.

[0012] Preferably, the inner side of the support base is provided with an adjustment mechanism, the adjustment mechanism includes two threaded sleeves, the two threaded sleeves are respectively fixedly connected to the inner side of the support base and the top of the base, and the threaded sleeves are internally engaged with a bidirectional threaded rod.

[0013] Preferably, a drive block is fixedly connected in the middle of the bidirectional threaded rod. The drive block has a prism-shaped structure, and a transmission rod is sleeved on the outside of the drive block. The structure of the transmission rod corresponds to the structure of the drive block, and the transmission rod is rotatably connected to the base.

[0014] Preferably, a drive rod is rotatably connected to the top of the base, a transmission belt is sleeved on the outside of the drive rod, the end of the transmission belt is sleeved on the outside of the drive rod, and a drive handle is fixedly connected to one end of the drive rod.

[0015] By employing the above technical solution, this utility model provides a roadway support structure for mining that has at least the following beneficial effects:

[0016] (1) The present invention can automatically move to the bottom of the positioning frame after the positioning frame is adjusted upward by setting multiple sets of positioning blocks, so as to provide auxiliary support and positioning for the positioning frame, thereby reducing the safety risk caused by the collapse of the roadway and the falling of the support top. Even if the positioning blocks cannot bear the weight of the collapse, the accumulation of the broken positioning blocks can still limit the fall of the positioning frame, thereby reducing the distance of the support top falling and improving the safety protection effect.

[0017] (2) The present invention can cooperate with the threaded sleeve through the bidirectional threaded rod, so that the support top and the base can be separated, thereby making it easier for the staff to adjust the height of the support top and improving the convenience of the device when adjusting the height. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the positioning mechanism of this utility model;

[0021] Figure 3This is a schematic diagram of the internal structure of the adjustment mechanism of this utility model. Figure 1 ;

[0022] Figure 4 This is a schematic diagram of the internal structure of the adjustment mechanism of this utility model. Figure 2 .

[0023] In the diagram: 1. Base; 2. Positioning mechanism; 21. Support seat; 22. Positioning frame; 23. Positioning block; 24. Buffer spring; 25. Slide groove; 26. Support top; 27. Piston cylinder; 28. Piston rod; 29. ​​Connecting pipe; 3. Adjusting mechanism; 31. Screw sleeve; 32. Double-ended threaded rod; 33. Drive block; 34. Transmission rod; 35. Drive rod; 36. Transmission belt; 37. Drive handle. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1

[0026] A type of mine roadway support structure, such as Figures 1-4 As shown, it includes a base 1; the base 1 is provided with a positioning mechanism 2, which can support the top 26 to support the top of the roadway, and at the same time, the positioning frame 22 positions the height of the supporting top 26. In addition, the positioning mechanism 2 can protect the supporting top 26 from falling, thereby improving the overall safety performance.

[0027] Specifically, the positioning mechanism 2 includes two support seats 21, which are symmetrically fixedly connected to the top two sides of the base 1. A positioning frame 22 is slidably connected to the support seats 21, which can support the positioning frame 22 and adjust its lifting and lowering movement within the support seats 21. A positioning block 23 is slidably connected inside the support seats 21, and a buffer spring 24 is fixedly connected to one side of the positioning block 23. The structure of the positioning block 23 can cooperate with the buffer spring 24, and after the positioning frame 22 is raised and adjusted, it can automatically pop out to support and position the bottom of the positioning frame 22. By using multiple sets of positioning blocks 23, multi-level protection can be achieved, improving the safety of the positioning frame 22 in the event of an accidental fall.

[0028] It is worth noting that a groove 25 is provided on the inner side of the support base 21, and the positioning block 23 is slidably connected inside the groove 25. The structure of the groove 25 facilitates the lateral movement and adjustment of the positioning block 23, and at the same time, it provides longitudinal support for the positioning block 23 after it slides. The positioning frame 22 includes a support component at the top and a drive component at the bottom. One side of the top of the drive component has an arc-shaped structure. When the positioning frame 22 moves upward, the arc-shaped edge can automatically push the positioning block 23 to both sides. The top of the positioning frame 22 passes through the support base 21 and is fixedly connected to a support top 26, which can support the top of the tunnel.

[0029] In addition, a piston cylinder 27 is fixedly connected inside the support base 21, and a piston rod 28 is slidably connected inside the piston cylinder 27. The end of the piston rod 28 is fixedly connected to the buffer spring 24. The piston rod 28 can automatically pop the positioning block 23 outward using the air pressure inside the piston cylinder 27. At the same time, the structure of the buffer spring 24 can make the connection between the positioning block 23 and the piston rod 28 a non-rigid connection, so as to prevent the piston rod 28 from bending under force.

[0030] Based on this, a connecting pipe 29 is fixedly connected to the end of the piston rod 28, and the piston cylinders 27 are interconnected through the connecting pipe 29. A sealing plug is connected to the end of the connecting pipe 29, which allows the operator to easily extract the air from inside the piston cylinder 27, thus facilitating the placement of the positioning block 23 into the slide groove 25 during disassembly, allowing the positioning frame 22 to descend. The connecting pipe 29 structure can connect multiple different piston cylinders 27 to each other, so that when the positioning frame 22 rises and forces the piston rod 28 into the piston cylinder 27, the misaligned piston rod 28 below can be automatically ejected by gas pressure.

[0031] Example 2

[0032] like Figures 1-4 As shown, based on Embodiment 1, the support base 21 is provided with an adjustment mechanism 3 on its inner side. The adjustment mechanism 3 can adjust the height of the positioning mechanism 2, thereby adapting the device to roadways of different heights and improving the applicability of the device.

[0033] In this embodiment, the adjustment mechanism 3 includes two screw sleeves 31. The two screw sleeves 31 are fixedly connected to the inner side of the support base 21 and the top of the base 1, respectively. The screw sleeves 31 are internally connected to a bidirectional threaded rod 32. The structure of the screw sleeves 31 can cooperate with the bidirectional threaded rod 32. By rotating the bidirectional threaded rod 32, the two screw sleeves 31, the base 1 and the support top 26 are moved away from each other, thereby adjusting the height of the positioning mechanism 2.

[0034] It is worth noting that a drive block 33 is fixedly connected in the middle of the bidirectional threaded rod 32. The drive block 33 has a prism-shaped structure, and a transmission rod 34 is sleeved on the outside of the drive block 33. The structure of the transmission rod 34 corresponds to the structure of the drive block 33. The transmission rod 34 is rotatably connected to the base 1, and the drive block 33 can slide inside the transmission rod 34. Thus, the drive block 33 can be moved with the bidirectional threaded rod 32 while being driven by the transmission rod 34.

[0035] In addition, a drive rod 35 is rotatably connected to the top of the base 1, and a transmission belt 36 is sleeved on the outside of the drive rod 35. The end of the transmission belt 36 is sleeved on the outside of the transmission rod 34. A drive handle 37 is fixedly connected to one end of the drive rod 35. The structure of the drive handle 37 allows the staff to easily adjust the height of the support top 26.

[0036] In use, the mining roadway support structure of this utility model involves the operator first moving the device to the designated position in the roadway, and then rotating the drive rod 35 via the drive handle 37. The drive rod 35 then drives the transmission rod 34 to rotate via the transmission belt 36. During rotation, the transmission rod 34 drives the bidirectional threaded rod 32 to rotate via the drive block 33. The support top 26 rises under the drive of the bidirectional threaded rod 32, thus supporting the top of the roadway. The top of the support top 26 has an arc-shaped structure to adapt to the roadway structure. During the sliding adjustment of the positioning frame 22 inside the support base 21, the positioning blocks 23 on both sides of the top of the positioning frame 22 are driven inwards by the arc-shaped top of the positioning frame 22. The drive block 33 drives the piston rod 28 to move inwards synchronously via the buffer spring 24. Simultaneously, after the positioning frame 22 rises, the ends of the positioning blocks 23 below the positioning frame 22 are no longer restricted by the positioning frame 22. The inward-moving piston rod 28 compresses the gas inside the piston cylinder 27. Since the piston cylinders 27 are interconnected through connecting pipes, the piston rod 28 at the end of the unrestrained positioning block 23 below the positioning frame 22 moves outward under the pressure of the air, pushing the positioning block 23 below the positioning frame 22. Multiple positioning blocks 23 form a serrated structure below the positioning frame 22, preventing the positioning frame 22 from falling and avoiding a safety hazard caused by the entire support top 26 falling.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A roadway support structure for mining, comprising a base (1), characterized in that: The base (1) is provided with a positioning mechanism (2), which includes two support seats (21). The two support seats (21) are symmetrically fixed on the base (1). A positioning frame (22) is slidably connected to the support seat (21). A positioning block (23) is slidably connected inside the support seat (21). A buffer spring (24) is fixedly connected to one side of the positioning block (23).

2. The mining roadway support structure according to claim 1, characterized in that: The inner side of the support base (21) is provided with a sliding groove (25), and the positioning block (23) is slidably connected inside the sliding groove (25). The positioning frame (22) includes a support component at the top and a drive component at the bottom. One side of the top of the drive component is an arc-shaped structure. The top of the positioning frame (22) passes through the support base (21) and is fixedly connected to a support top (26).

3. The mining roadway support structure according to claim 1, characterized in that: A piston cylinder (27) is fixedly connected inside the support base (21), and a piston rod (28) is slidably connected inside the piston cylinder (27). The end of the piston rod (28) is fixedly connected to a buffer spring (24).

4. A mining roadway support structure according to claim 3, characterized in that: The piston rod (28) is fixedly connected to a connecting pipe (29) at its end. The piston cylinders (27) are interconnected through the connecting pipe (29). A sealing plug is connected to the end of the connecting pipe (29).

5. A mining roadway support structure according to claim 1, characterized in that: The support base (21) is provided with an adjustment mechanism (3) on its inner side. The adjustment mechanism (3) includes a screw sleeve (31). There are two screw sleeves (31). The two screw sleeves (31) are respectively fixedly connected to the inner side of the support base (21) and the top of the base (1). A bidirectional threaded rod (32) is meshed inside the screw sleeve (31).

6. A mining roadway support structure according to claim 5, characterized in that: The bidirectional threaded rod (32) is fixedly connected to a drive block (33) in the middle. The drive block (33) has a prism-shaped structure. A transmission rod (34) is sleeved on the outside of the drive block (33). The structure of the transmission rod (34) corresponds to the structure of the drive block (33). The transmission rod (34) is rotatably connected to the base (1).

7. A mining roadway support structure according to claim 1, characterized in that: The base (1) is rotatably connected to a drive rod (35) at its top end. A transmission belt (36) is sleeved on the outside of the drive rod (35). The end of the transmission belt (36) is sleeved on the outside of the transmission rod (34). A drive handle (37) is fixedly connected to one end of the drive rod (35).

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