Hard roof pressure relief construction structure

Abstract

The utility model relates to the technical field of roof pressure relief, in particular to a hard roof pressure relief construction structure which comprises a pressure relief supporting plate. Adjusting supporting assemblies are arranged at the positions, close to the corners, of the bottom, a plurality of reinforcing assemblies are arranged on the lower surface of the pressure relief supporting plate, a plurality of protrusions are arranged on the upper surface of the pressure relief supporting plate, each adjusting supporting assembly comprises a supporting column and a movable column inserted into the bottom of the supporting column, a sliding column is arranged at the top of each movable column, and limiting columns are symmetrically arranged on the outer wall of each sliding column. According to the pressure relief construction structure for the hard roof, by arranging the adjusting supporting assemblies, movable columns are in insertion fit with corresponding sliding grooves and limiting grooves through sliding columns and limiting columns, the stability of vertical movement between the movable columns and the supporting columns is improved, bolts penetrate through penetrating holes to be in insertion fit with pin holes, and total length adjusting fit between the supporting columns and the movable columns is achieved; and a pressure relief supporting plate with a reinforcing assembly is matched to support and support the upper hard top plate.

Description

Technical Field

[0001] The utility model relates to the technical field of roof pressure relief, in particular to a hard roof pressure relief construction structure. Background Technique

[0002] If the hard roof cannot be pressure-relieved in time during coal mine mining, it is extremely easy to form a large-area suspended roof. Once this suspended roof breaks, it will instantly cause roadway damage, seriously threatening coal mine safety.

[0003] The utility model with the publication number of CN217080448U discloses a hard roof pressure relief construction structure for coal mine roadways, including a long-distance directional pressure relief borehole group for pressure-relieving the area to be pressure-relieved, a high-pressure water injection mechanism arranged in the drill yard and used for injecting high-pressure water into the long-distance directional pressure relief borehole group, and a detection device arranged in the coal seam roadway and used for detecting the crack parameters inside the area to be pressure-relieved.

[0004] The above technical solution realizes the advanced pressure relief of the hard roof of the coal seam, eliminates the impact pressure danger caused by the large-area suspended roof of the hard roof of the coal seam, and avoids impact dynamic phenomena such as the working face support being crushed, hurricane, and mine tremor during the coal face mining process. At the same time, the effective caving of the entire hard roof of the coal seam effectively reduces the rock pressure of the adjacent roadway, simplifies the roadway support method, reduces the production maintenance cost, has good treatment effect, and is convenient for popularization and use; however, the roof pressure relief construction is not convenient for stable combined installation and cooperation, and during pressure relief, it cannot be adjusted and matched according to the required length, and is not convenient for stable support and lifting cooperation of the roof. Content of the Utility Model

[0005] The purpose of the utility model is to provide a hard roof pressure relief construction structure to solve the problems put forward in the above background technique.

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

[0007] A hard roof pressure relief construction structure includes a pressure relief support plate. Adjusting support components are provided at the bottom near the corners of the pressure relief support plate. A plurality of strengthening components are provided on the lower surface of the pressure relief support plate. A plurality of protrusions are provided on the upper surface of the pressure relief support plate. The adjusting support component includes a support column and a movable column inserted and installed at the bottom of the support column. A sliding column is provided at the top of the movable column. Limiting columns are symmetrically arranged on the outer wall of the sliding column. A plurality of pin holes are provided on the sliding column. A sliding groove is provided at the bottom of the support column. Limiting grooves are symmetrically arranged on both sides of the sliding groove. A through hole is provided on the outer wall of the support column near the bottom. A pin is provided in the through hole.

[0008] Further, the pressure relief pallet is U-shaped, the protrusions are frustum-shaped, the bottoms of the protrusions are fixedly welded to the top of the pressure relief pallet, and the protrusions are distributed in a matrix.

[0009] In the present utility model, with the cooperation of multiple protrusions, the stability of the plug-in installation with the hard roof above is increased, the contact area is increased, and thus the friction force is increased.

[0010] Specifically, the strengthening component includes a strengthening plate and fixing seats connected to both ends of the strengthening plate. The strengthening components are distributed at equal intervals, and the fixing seats are fixedly welded corresponding to the ends of the strengthening plate. The fixing seats are fixedly connected to the pressure relief pallet through screws.

[0011] In the present utility model, with the cooperation of multiple strengthening components, the stability of the support of the pressure relief pallet is increased, and the fixing seats are right trapezoid-shaped. With the cooperation of the fixing seats, they are fixedly installed through screws, increasing the stability of the installation of the strengthening plate and the pressure relief pallet.

[0012] It should be noted that the top of the support column is fixedly welded to the bottom of the pressure relief pallet. The inner diameter of the sliding groove is adapted to the outer diameter of the sliding column. The width of the inner wall of the limiting groove is adapted to the width of the outer wall of the limiting column. The limiting column and the sliding column are integrally formed structures, and the bottoms of the sliding column and the limiting column are fixedly welded to the top of the movable column.

[0013] In the present utility model, the limiting column is inserted and matched with the limiting groove, and the sliding column is inserted and matched with the sliding groove, increasing the stability of the up and down movement of the movable column and the support column.

[0014] Further, the pin holes are distributed at equal intervals. The inner diameter of the through hole is adapted to the inner diameter of the pin hole. The plug pin is inserted and matched with the pin hole, and a pull ring is provided at the outer end of the plug pin.

[0015] In the present utility model, the plug pin passes through the through hole and is inserted and matched with the pin hole to realize the fixed cooperation between the movable column and the support column. With the cooperation of the pull ring, it is helpful for the plug pin to be pulled out or installed and matched.

[0016] Specifically, the bottoms of the movable columns are all provided with foot pads. The foot pads are round cake-shaped, and the outer diameter of the foot pads is larger than the outer diameter of the movable columns.

[0017] In the present utility model, the foot pads are provided to increase the friction force with the ground. Then, under the condition of adjusting the support of the support component to the pressure relief pallet, and further, under the condition of helping to lift the hard roof, the influence of collapse is reduced.

[0018] Compared with the prior art, the beneficial effects of the present utility model are:

[0019] 1. The utility model sets an adjustable support assembly, and the movable column is plugged and matched with the corresponding sliding groove and limiting groove through the sliding column, the limit column, so as to increase the stability of the up and down movement between the movable column and the support column. The latch passes through the through hole and is plugged and matched with the pin hole to achieve the total length adjustment between the support column and the movable column, and cooperates with the pressure relief support plate with the reinforcement assembly to support and lift the hard top plate above.

[0020] 2. The utility model increases the stability of the combination of the pressure relief support plate and the external hard top plate by arranging multiple protrusions. The cooperation of multiple reinforcing plates and the fixing seat increases the overall toughness of the pressure relief support plate. The installation of foot pads increases the friction between the bottom of the movable column and the ground. The pull ring on the latch provides a fulcrum, which helps the latch to be pulled out and matched. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the overall combined adjustment state structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the pressure relief support plate structure of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the adjustment support assembly of the utility model.

[0025] The meaning of each number in the figure is:

[0026] 1. Pressure relief plate; 10. Protrusion;

[0027] 2. Adjust the support assembly; 20. Support column; 200. Slide groove; 201. Limiting groove; 202. Through hole; 203. Latch; 204. Pull ring; 21. Movable column; 210. Slide column; 211. Limiting column; 212. Pin hole; 22. Foot pad; 23. Handle;

[0028] 3. Reinforcement assembly; 30. Reinforcement plate; 31. Fixed seat. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figures 1 - 4 , this embodiment provides a technical solution:

[0031] A hard roof pressure relief construction structure includes a pressure relief support plate 1. Adjusting support components 2 are provided at the bottom of the pressure relief support plate 1 near the corners. A plurality of strengthening components 3 are provided on the lower surface of the pressure relief support plate 1. The strengthening component 3 includes a strengthening plate 30 and fixing seats 31 connected to both ends of the strengthening plate 30. The strengthening components 3 are distributed at equal intervals, and the fixing seats 31 are fixedly welded corresponding to the ends of the strengthening plate 30. The fixing seats 31 are all fixedly connected to the pressure relief support plate 1 by screws.

[0032] In the present utility model, with the cooperation of a plurality of strengthening components 3, the stability of the support of the pressure relief support plate 1 is increased. And the fixing seat 31 is in the shape of a right trapezoid. With the cooperation of the fixing seat 31, it is fixedly installed by screws, which increases the stability of the installation of the strengthening plate 30 and the pressure relief support plate 1.

[0033] Furthermore, a plurality of protrusions 10 are provided on the upper surface of the pressure relief support plate 1. The pressure relief support plate 1 is in a U shape. The protrusions 10 are in the shape of a frustum of a cone. The bottoms of the protrusions 10 are fixedly welded to the top of the pressure relief support plate 1. The protrusions 10 are distributed in a matrix.

[0034] In the present utility model, with the cooperation of a plurality of protrusions 10, the stability of the plug-in installation with the upper hard roof is increased, the contact area is increased, and thus the friction force is increased.

[0035] It should be noted that the adjusting support component 2 includes a support column 20 and a movable column 21 inserted at the bottom of the support column 20. A sliding column 210 is provided at the top of the movable column 21. Symmetrically arranged limiting columns 211 are provided on the outer wall of the sliding column 210. The top of the support column 20 is fixedly welded to the bottom of the pressure relief support plate 1. The inner diameter of the sliding groove 200 is adapted to the outer diameter of the sliding column 210. The width of the inner wall of the limiting groove 201 is adapted to the width of the outer wall of the limiting column 211. The limiting column 211 and the sliding column 210 are integrally formed structures, and the bottoms of the sliding column 210 and the limiting column 211 are fixedly welded to the top of the movable column 21.

[0036] In the present utility model, the limiting column 211 is inserted and matched with the limiting groove 201, and the sliding column 210 is inserted and matched with the sliding groove 200, which increases the stability of the up and down movement of the movable column 21 and the support column 20.

[0037] Furthermore, a plurality of pin holes 212 are provided on the sliding column 210. A sliding groove 200 is provided at the bottom of the support column 20. Symmetrically arranged limiting grooves 201 are provided on both sides of the sliding groove 200. A through hole 202 is provided on the outer wall of the support column 20 near the bottom. A plug pin 203 is provided in the through hole 202.

[0038] Secondly, the pin holes 212 are distributed at equal intervals. The inner diameter of the through hole 202 is adapted to the inner diameter of the pin holes 212. The plug pin 203 is inserted and matched with the pin holes 212. A pull ring 204 is provided at the outer end of the plug pin 203.

[0039] In the present invention, the latch 203 passes through the through hole 202 and is plugged into the pin hole 212 to achieve a fixed position fit between the movable column 21 and the support column 20. With the cooperation of the pull ring 204, it is helpful to pull out or install the latch 203.

[0040] Specifically, a foot pad 22 is provided at the bottom of the movable column 21 . The foot pad 22 is in a round shape, and the outer diameter of the foot pad 22 is greater than the outer diameter of the movable column 21 .

[0041] In the present invention, the foot pad 22 is provided to increase the friction with the ground, thereby achieving the support and coordination of the adjustment support assembly 2 to the pressure relief support plate 1, thereby helping to support the hard top plate and reduce the impact of collapse.

[0042] Among them, a handle 23 is provided on the outer wall of the movable column 21, and the handle 23 is welded and fixed to the movable column 21. With the cooperation of the handle 23, a fulcrum is provided, which helps to adjust the position of the movable column 21 when it slides in the support column 20.

[0043] When the hard top plate pressure relief construction structure of this embodiment is used, the user first fixes the multiple protrusions 10 with the pressure relief support plate 1, and the multiple reinforcement plates 30 are respectively fixedly connected to the bottom of the pressure relief support plate 1 through the fixing seat 31, and then the top of the support column 20 is combined and connected with the pressure relief support plate 1, and the movable column 21 with the foot pad 22 is inserted into the slide groove 200 through the limit column 211 and the slide column 210, and then the pin 203 with the pull ring 204 is sequentially passed through the corresponding through hole 202 and the pin hole 212 to achieve the total length adjustment and matching between the support column 20 and the movable column 21;

[0044] When it is necessary to relieve pressure on hard top plates of different heights, the total length of the movable column 21 and the support column 20 can be adjusted according to the different heights with the cooperation of the handle 23, and the foot pad 22 is in close contact with the ground, which increases the stability of the pressure relief support when the whole is placed, and the disassembly and assembly are quick and convenient, which is conducive to manual operation.

Claims

1. A hard top plate pressure relief construction structure, comprising a pressure relief support plate (1), wherein the bottom of the pressure relief support plate (1) is provided with an adjustment support assembly (2) near the corner, and the lower surface of the pressure relief support plate (1) is provided with a plurality of reinforcement assemblies (3), characterized in that: The upper surface of the pressure relief support plate (1) is provided with a plurality of protrusions (10); the adjustment support assembly (2) comprises a support column (20) and a movable column (21) plugged and installed at the bottom of the support column (20); a sliding column (210) is provided at the top of the movable column (21); a limiting column (211) is symmetrically provided on the outer wall of the sliding column (210); a plurality of pin holes (212) are provided on the sliding column (210); a sliding groove (200) is provided at the bottom of the support column (20); limiting grooves (201) are symmetrically provided on both sides of the sliding groove (200); a through hole (202) is provided on the outer wall of the support column (20) near the bottom; a latch (203) is provided in the through hole (202).

2. The hard top plate pressure relief construction structure according to claim 1 is characterized in that: The pressure relief support plate (1) is U-shaped, the protrusions (10) are truncated, the bottoms of the protrusions (10) are welded and fixed to the top of the pressure relief support plate (1), and the protrusions (10) are distributed in a matrix.

3. The hard top plate pressure relief construction structure according to claim 1 is characterized in that: The reinforcing assembly (3) comprises a reinforcing plate (30) and a fixing seat (31) connected to both ends of the reinforcing plate (30); the reinforcing assembly (3) is distributed at equal intervals, and the fixing seat (31) and the ends of the reinforcing plate (30) are correspondingly welded and fixed; the fixing seat (31) is fixedly connected to the pressure relief support plate (1) by screws.

4. The hard top plate pressure relief construction structure according to claim 1, characterized in that: The top of the support column (20) is welded and fixed to the bottom of the pressure relief support plate (1); the inner diameter of the slide groove (200) is matched with the outer diameter of the slide column (210); the width of the inner wall of the limit groove (201) is matched with the width of the outer wall of the limit column (211); the limit column (211) and the slide column (210) are an integrally formed structure; and the bottoms of the slide column (210) and the limit column (211) are welded and fixed to the top of the movable column (21).

5. The hard top plate pressure relief construction structure according to claim 1 is characterized in that: The pin holes (212) are distributed at equal intervals, the inner diameter of the through hole (202) matches the inner diameter of the pin hole (212), the latch (203) is plugged into the pin hole (212), and a pull ring (204) is provided on the outer end of the latch (203).

6. The hard top plate pressure relief construction structure according to claim 1, characterized in that: A foot pad (22) is provided at the bottom of each movable column (21). The foot pad (22) is in a round shape, and the outer diameter of the foot pad (22) is greater than the outer diameter of the movable column (21).

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