Small coal pillar gob-side roadway supporting device
By designing the anti-fall structure and limit structure of the support device along the hollow tunnel, the problem of soil debris falling in the tunnel is solved, the stability and safety of the support device are improved, and the safety of the staff is ensured.
Patent Information
- Application Number
- CN202421616610.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-10
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-07-10
AI Technical Summary
In the empty tunnels along the small coal column, soil debris falls easily, causing the safety of staff to be threatened.
A small coal column hollow tunnel support device is designed, including an anti-fall structure and a limit structure. The anti-fall structure forms a stable limit structure through the combination of engaging blocks, fixing plates, bolts and thread grooves to ensure that the collection net can effectively collect the falling soil. The limiting structure enhances the stability of the device through the cooperation of the fixed ring, limiting column and reserved hole.
It effectively prevents soil debris from falling on staff, improves the stability and safety of tunnel support, and ensures the cleanliness and safety of the working environment.
Smart Images
Figure CN222668209U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of tunnel support, in particular to a small coal pillar gob-side tunnel support device. Background Art
[0002] Coal mining in my country is mainly carried out underground, which requires the excavation of a large number of tunnels underground. The use of tunnel support to maintain the smooth flow of tunnels and the stability of surrounding rocks is of great significance to coal mine construction and production. Therefore, the basic purpose of tunnel support is to alleviate and reduce the movement of surrounding rocks so that the tunnel cross-section does not shrink excessively, and at the same time prevent the scattered and damaged surrounding rocks from falling. This involves a small coal pillar along the empty tunnel support device.
[0003] During the use of the small coal pillar gob-side tunnel support device, broken soil and mud will fall from the top of the tunnel. Therefore, the anti-falling soil structure is designed to collect the smaller broken soil and mud falling from the top of the tunnel to prevent the broken soil and mud from falling on the workers. Utility Model Content
[0004] The utility model provides a small coal pillar gob-side tunnel supporting device, aiming to solve the problem of soil debris falling in the small coal pillar gob-side tunnel.
[0005] The utility model is implemented as follows: a small coal pillar gob-side tunnel support device comprises a base, a support column is fixed at the top of the base, a support frame is fixed at the top of the support column, an anti-falling soil structure is arranged at the top of one side of the support column, and a limiting structure is arranged at the bottom end of the outer side wall of the support column;
[0006] The anti-falling soil structure includes a locking block, which is fixed to the top of one side of a supporting column, a fixing plate is arranged inside the locking block, threaded grooves are arranged inside the top and bottom ends of the locking block, bolts are arranged inside the threaded grooves, and a collecting net is fixed to the bottom end of the fixing plate.
[0007] Preferably, the inner diameter of the engaging block is greater than the outer diameter of the fixing plate, and the engaging block and the fixing plate form an engaging structure.
[0008] Preferably, two groups of the engaging blocks are provided, and the two groups of the engaging blocks are symmetrically distributed about the central axis of the support column.
[0009] Preferably, an outer wall of the bolt is provided with an external thread, an inner wall of the thread groove is provided with an internal thread, and the bolt and the thread groove form a thread structure.
[0010] Preferably, the limiting structure includes a fixing ring, which is fixed to the bottom end of the outer wall of the support column, and fixing blocks are fixed on both sides of the fixing ring. A reserved hole is provided inside the fixing block, and a limiting column is provided inside the reserved hole. A handle is fixed to the top of the limiting column.
[0011] Preferably, the outer diameter of the limiting column is smaller than the inner diameter of the reserved hole, and the limiting column is adapted to the reserved hole.
[0012] Preferably, two groups of the fixing blocks are provided, and the two groups of the fixing blocks are symmetrically distributed about the central axis of the fixing ring.
[0013] Preferably, two groups of the fixing rings are provided, and the two groups of the fixing rings are symmetrically distributed about the central axis of the support column.
[0014] Compared with the prior art, the embodiments of the present application have the following beneficial effects:
[0015] By setting up an anti-falling soil structure, threaded grooves are also provided inside both sides of the fixed plate. Through the symmetrical distribution of the clamping blocks, both sides of the fixed plate can be limited inside the clamping blocks, so that the fixed plate with the collecting net is limited at the bottom end of the support column. Through the threaded structure of the bolt and the threaded groove, the bolt is screwed inside the threaded groove, and the bolt passes through the clamping block and the fixed plate, so that the limitation of the fixed plate is more stable, and the collecting net can collect the soil falling in the empty tunnel to prevent the soil from falling on the workers.
[0016] By setting a limiting structure, the inner diameter of the fixing ring is matched with the support column, so that the fixing ring is fixed on the outer wall of the support column. By matching the limiting column with the reserved hole, the limiting column can be grasped and screwed through the inside of the reserved hole, so that the bottom end of the outer wall of the limiting column can be limited inside the ground. The symmetrical distribution of the fixing blocks allows the two groups of limiting columns to be symmetrically limited on both sides of the support column, making the small coal pillar along the empty tunnel support device more stable when in use. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;
[0018] Figure 2 It is a rear view structural schematic diagram of the utility model;
[0019] Figure 3 The utility model Figure 1 The enlarged structural diagram at A in the middle;
[0020] Figure 4 This is a partial three-dimensional structural diagram of the limiting structure of the utility model.
[0021] In the figure: 1. base; 2. support column; 3. support frame; 4. anti-falling soil structure; 401. snap-fit block; 402. fixing plate; 403. bolt; 404. threaded groove; 405. collecting net; 5. limiting structure; 501. handle; 502. limiting column; 503. reserved hole; 504. fixing block; 505. fixing ring. DETAILED DESCRIPTION
[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.
[0023] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.
[0024] The utility model provides a small coal pillar gob-side tunnel support device, such as Figure 1-4 As shown, it includes a base 1, a support column 2 is fixed to the top of the base 1, a support frame 3 is fixed to the top of the support column 2, an anti-falling soil structure 4 is arranged at the top of one side of the support column 2, and a limiting structure 5 is arranged at the bottom end of the outer wall of the support column 2.
[0025] It should be noted that due to the problem of soil and debris falling in the empty tunnels along the small coal pillars, this solution sets up an anti-falling soil structure 4, and threaded grooves 404 are also set inside the two sides of the fixed plate 402. Through the symmetrical distribution of the clamping block 401, both sides of the fixed plate 402 can be limited inside the clamping block 401, so that the fixed plate 402 with the collecting net 405 is limited to the bottom end of the support column 2, and through the threaded structure of the bolt 403 and the threaded groove 404, the bolt 403 is screwed inside the threaded groove 404, so that the bolt 403 passes through the clamping block 401 and the fixed plate 402, so that the limiting of the fixed plate 402 is more stable, and the collecting net 405 can collect the soil falling in the empty tunnel to prevent the soil from falling on the workers.
[0026] Specifically, in this embodiment, this scheme mainly includes an anti-falling soil structure 4, which includes a snap-fit block 401, which is fixed to the top of one side of the support column 2, a fixing plate 402 is arranged inside the snap-fit block 401, a threaded groove 404 is arranged inside the top and bottom ends of the snap-fit block 401, a bolt 403 is arranged inside the threaded groove 404, and a collecting net 405 is fixed to the bottom end of the fixing plate 402. First, the collecting net 405 is fixed to the bottom end of the fixing plate 402, and then the snap-fit block 401 is fixed to the top end of the fixing plate 402. A threaded groove 404 is opened inside the upper and lower ends, and a threaded groove 404 is opened inside both sides of the fixing plate 402. Then the locking block 401 is fixed to one side of the support column 2 accordingly, and then the corresponding limit positions on both sides of the fixing plate 402 are inside the locking block 401, and then the bolt 403 is screwed through the threaded groove 404, so that the bolt 403 can limit the fixing plate 402, and at the same time it is convenient to disassemble and assemble the fixing plate 402, so that the collecting net 405 can collect the soil that falls in the tunnel to prevent the soil from falling on the workers.
[0027] In a further preferred embodiment of the present invention, Figure 1 , Figure 2 and Figure 3 As shown, the inner diameter of the snap-fit block 401 is larger than the outer diameter of the fixed plate 402, and the snap-fit block 401 and the fixed plate 402 form a snap-fit structure. The snap-fit block 401 is provided with two groups, and the two groups of snap-fit blocks 401 are symmetrically distributed about the central axis of the support column 2. The outer wall of the bolt 403 is provided with an external thread, and the inner wall of the thread groove 404 is provided with an internal thread. The bolt 403 and the thread groove 404 form a threaded structure. The snap-fit structure of the snap-fit block 401 and the fixed plate 402 is convenient for limiting the fixed plate 402. The symmetrical distribution of the snap-fit block 401 makes the limiting of the fixed plate 402 more stable. The threaded structure of the bolt 403 and the thread groove 404 is convenient for disassembly of the fixed plate 402, so that the soil collected inside the collecting net 405 can be cleaned.
[0028] Specifically, in this embodiment, this scheme mainly includes a limiting structure 5, which includes a fixing ring 505, which is fixed to the bottom end of the outer wall of the support column 2, and fixed blocks 504 are fixed on both sides of the fixing ring 505. A reserved hole 503 is arranged inside the fixing block 504, and a limiting column 502 is arranged inside the reserved hole 503. A handle 501 is fixed to the top of the limiting column 502. First, the handle 501 is fixed to the top of the limiting column 502, and then the fixing ring 505 is fixed to the bottom end of the outer wall of the support column 2, and then the reserved hole 503 is opened inside the fixing block 504, and the fixing blocks 504 are symmetrically fixed on both sides of the fixing ring 505. Then, the handle 501 is grasped to limit the limiting column 502 inside the reserved hole 503 and twist it, so that the bottom end of the outer wall of the limiting column 502 is inserted into the ground, so that the small coal pillar along the empty tunnel support device is more stable when in use.
[0029] In a further preferred embodiment of the present invention, Figure 1 , Figure 2 and Figure 4 As shown, the outer diameter of the limiting column 502 is smaller than the inner diameter of the reserved hole 503, the limiting column 502 is matched with the reserved hole 503, two groups of fixing blocks 504 are provided, and the two groups of fixing blocks 504 are symmetrically distributed about the central axis of the fixing ring 505, and two groups of fixing rings 505 are provided, and the two groups of fixing rings 505 are symmetrically distributed about the central axis of the support column 2, the limiting column 502 is matched with the reserved hole 503, which is convenient for limiting the limiting column 502, and makes the penetration of the limiting column 502 more stable, the symmetrical distribution of the fixing blocks 504 makes both sides of the fixing ring 505 have a limiting effect, and the symmetrical distribution of the fixing ring 505 makes the limiting of the support device along the empty tunnel more uniform and stable.
[0030] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.
[0031] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.
[0032] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
[0033] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.
Claims
1. A small coal pillar gob-side tunnel support device, characterized in that: The invention comprises a base (1), a support column (2) being fixed at the top of the base (1), a support frame (3) being fixed at the top of the support column (2), a soil-falling prevention structure (4) being arranged at the top of one side of the support column (2), and a limiting structure (5) being arranged at the bottom end of the outer side wall of the support column (2); The soil falling prevention structure (4) comprises a snap-fit block (401), the snap-fit block (401) is fixed to the top end of one side of a support column (2), a fixing plate (402) is arranged inside the snap-fit block (401), thread grooves (404) are arranged inside the top end and the bottom end of the snap-fit block (401), bolts (403) are arranged inside the thread grooves (404), and a collecting net (405) is fixed to the bottom end of the fixing plate (402).
2. A small coal pillar gob-side tunnel support device as claimed in claim 1, characterized in that: The inner diameter of the locking block (401) is greater than the outer diameter of the fixing plate (402), and the locking block (401) and the fixing plate (402) form a locking structure.
3. A small coal pillar gob-side tunnel support device as claimed in claim 1, characterized in that: The snap-fit blocks (401) are provided in two groups, and the two groups of snap-fit blocks (401) are symmetrically distributed about the central axis of the support column (2).
4. A small coal pillar gob-side tunnel support device as claimed in claim 1, characterized in that: An external thread is arranged on the outer wall of the bolt (403), and an internal thread is arranged on the inner wall of the thread groove (404); the bolt (403) and the thread groove (404) form a thread structure.
5. A small coal pillar gob-side tunnel support device as claimed in claim 1, characterized in that: The limiting structure (5) comprises a fixing ring (505), wherein the fixing ring (505) is fixed to the bottom end of the outer wall of the support column (2), fixing blocks (504) are fixed on both sides of the fixing ring (505), a reserved hole (503) is arranged inside the fixing block (504), a limiting column (502) is arranged inside the reserved hole (503), and a handle (501) is fixed to the top end of the limiting column (502).
6. A small coal pillar gob-side tunnel support device as claimed in claim 5, characterized in that: The outer diameter of the limiting column (502) is smaller than the inner diameter of the reserved hole (503), and the limiting column (502) is adapted to the reserved hole (503).
7. A small coal pillar gob-side tunnel support device as claimed in claim 5, characterized in that: The fixing blocks (504) are provided in two groups, and the two groups of fixing blocks (504) are symmetrically distributed about the central axis of the fixing ring (505).
8. A small coal pillar gob-side tunnel support device as claimed in claim 5, characterized in that: Two groups of the fixing rings (505) are provided, and the two groups of the fixing rings (505) are symmetrically distributed about the central axis of the support column (2).