Temporary reinforcing and supporting device for coal mine tunnel

Abstract

The utility model belongs to the technical field of coal mine roadway supporting, and particularly relates to a coal mine roadway temporary reinforcing and supporting device which comprises a cambered surface supporting plate, a folding cavity is formed in the cambered surface supporting plate, a vertical plate is fixedly installed in the middle of the interior of the folding cavity, and T-shaped cambered surface limiting plates are fixedly installed on the two sides of the vertical plate. And cambered surface extension plates are fixedly mounted on the two sides of the interior of the folding cavity correspondingly, clamping grooves are formed in the sides, close to the vertical plates, of the cambered surface extension plates correspondingly, and a plurality of reinforcing ribs are fixedly mounted at the bottom of the cambered surface supporting plate. Through the structural design of the cambered-surface supporting plate, the folding cavity, the T-shaped cambered-surface limiting plate and the cambered-surface extending plate and through mutual cooperation of the structures, the function of flexibly adjusting the supporting area is achieved, and therefore the corresponding supporting area can be adjusted according to the size of a roadway, and the device can flexibly adapt to various roadway space sizes; and the supporting effect and the flexibility of the supporting device are effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of coal mine roadway support, specifically a kind of coal mine roadway temporary reinforcement supporting device. BACKGROUND

[0002] Coal mine as important energy material, it is more widely used in industrial production and other fields, since coal mine is generally hidden in the ground, so the mining operation of coal mine is also underground operation, when mining in the ground, it is generally transported by coal mine roadway and personnel access, the stability of coal mine roadway is related to the safety of mining, after roadway excavation, it needs to be reinforced by enclosure structure to ensure the stability of roadway, before supporting structure construction, temporary supporting device can be used to improve the support of roadway, and it can be removed after subsequent support is stable.

[0003] Such as the publication (announcement) No. CN219197378U, a kind of coal mine roadway temporary reinforcement supporting device, including base and lifting platform, the base top is fixedly installed with two installation plates, two installation plates are rotatably installed with rotating shaft, the base top is fixedly installed with first motor seat, the first motor seat top is fixedly installed with first motor, the first motor output shaft outer side is fixedly installed with worm gear. The utility model has reasonable structure design, the problem that the device is inconvenient to move can be solved by setting universal wheel, the lifting assembly can be lifted or lowered by pulley sliding in sliding groove, and due to the self-locking property of worm gear, the safety and stability of the device can be greatly improved, by moving the sliding block upward or downward, the bending radius on both sides of support plate can be adjusted according to demand, thereby the application range of the device is greatly improved.

[0004] But according to the working principle proposed in the above patent, the applicant believes that the device above is in fixed form due to the top support plate, in the process of coal mining, the size and shape of roadway may change with the progress of mining, when facing coal mine roadway of different sizes, it is impossible to adjust the support area according to the shape and size of roadway, which will make the contact area and pressure distribution of supporting device and roadway surrounding rock unreasonable.

[0005] Therefore, a kind of coal mine roadway temporary reinforcement supporting device is proposed for the above problems. UTILITY MODEL CONTENTS

[0006] In order to make up for the deficiency of prior art, the utility model provides a kind of coal mine roadway temporary reinforcement supporting device.

[0007] The utility model discloses a technical scheme that solves its technical problem is adopted: a kind of temporary reinforcement support device of coal mine roadway, including cambered surface support plate;The folding cavity is set in the inside of cambered surface support plate, the middle part of the inside of folding cavity is fixedly installed with vertical plate, the both sides of vertical plate are fixedly installed with T-shaped cambered surface limiting plate, the both sides of the inside of folding cavity are fixedly installed with cambered surface extension plate, the side of cambered surface extension plate close to vertical plate is set with clamping groove, the bottom of cambered surface support plate is fixedly installed with several reinforcing ribs, the middle part of the bottom of cambered surface support plate is fixedly installed with standpipe, the middle part of standpipe is fixedly installed with limiting rod, the surface of limiting rod is respectively equipped with first connecting arm and second connecting arm.

[0008] As preferred, the outside of the first connecting arm and the second connecting arm is provided with a first threaded hole, the inside of the first threaded hole is threadedly connected with a bidirectional threaded rod, one side of the surface of the bidirectional threaded rod is threadedly connected with a third connecting arm, and the side, away from the bidirectional threaded rod, of the third connecting arm is provided with a positioning hole.

[0009] As preferred, the middle part of the bottom of the cambered surface extension plate is fixedly installed with a first connecting seat, the middle part of the first connecting seat is fixedly installed with a first positioning rod, and the first positioning rod is embedded into the inside of the positioning hole.

[0010] As preferred, the both sides of the bottom of the cambered surface extension plate are fixedly installed with a second connecting seat, multiple second positioning rods are installed in the middle part of the second connecting seat, and the surface of the second positioning rod is equipped with a supporting rod.

[0011] As preferred, the bottom of the supporting rod is provided with a silk hole, and the inside of the silk hole is threadedly connected with a foot.

[0012] As preferred, the upper and lower sides of the outside of the supporting rod are fixedly installed with T-shaped rods, and the surface of the T-shaped rod is equipped with a cross-shaped fixing frame.

[0013] The utility model discloses the beneficial effects are:

[0014] 1. The utility model discloses the structural design of cambered surface support plate, folding cavity, T-shaped cambered surface limiting plate, cambered surface extension plate, and through the mutual cooperation between structure, realize the function that flexibly adjusts support area, thus can adjust corresponding support area according to roadway size, so that the device can flexibly cope with various roadway space size, effectively improve the supporting effect and the flexibility of supporting device, thus can solve the problem of insufficient flexibility.

[0015] 2. The utility model discloses a two -way threaded rod's setting, first connecting arm and second connecting arm and corresponding third connecting arm are connected to ensure that the working area of subsequent cambered surface extension board is effectively restricted, and the pressure that cambered surface extension board receives can be mutually transferred to ensure that supporting device is comprehensively and uniformly stressed. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment or prior art description, obviously, the drawing in the following description only is some embodiments of the utility model, for ordinary skilled person in the art comes, under the premise of not paying creative labor, can also obtain other drawings according to these drawings.

[0017] Figure 1 It is the whole structure front view schematic diagram of the utility model;

[0018] Figure 2 It is the whole structure back view schematic diagram of the utility model;

[0019] Figure 3 It is the cambered surface support plate structure front view sectional view schematic diagram of the utility model;

[0020] Figure 4 It is the local structure sectional view schematic diagram of the utility model;

[0021] Figure 5 It is the local structure back view schematic diagram of the utility model.

[0022] In the drawing: 1, cambered surface support plate;2, folding cavity;3, riser;4, T type cambered surface limiting plate;5, cambered surface extension board;6, clamping groove;7, reinforcing rib;8, standpipe;9, limiting rod;10, first connecting arm;11, second connecting arm;12, first threaded hole;13, two -way threaded rod;14, third connecting arm;15, positioning hole;16, first connecting seat;17, first positioning rod;18, second connecting seat;19, second positioning rod;20, support rod;21, silk hole;22, foot;23, T type rod;24, cross fixed frame. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be clearly and completely described in the following by combining the drawings in the embodiments of the utility model, obviously, the described embodiment only is a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by ordinary skilled person in the art without making creative labor belong to the scope of protection of the utility model.

[0024] The following will be combined withFigures 1-5 The application is further described in detail,

[0025] The embodiment of the application discloses a temporary reinforcing and supporting device for a coal mine roadway, which comprises an arc surface supporting plate 1, a folding cavity 2 is arranged in the arc surface supporting plate 1, a vertical plate 3 is fixedly installed at the middle part in the folding cavity 2, T-shaped arc surface limiting plates 4 are fixedly installed on the two sides of the vertical plate 3, arc surface extension plates 5 are fixedly installed on the two sides in the folding cavity 2, clamping grooves 6 are arranged on the side, close to the vertical plate 3, of the arc surface extension plates 5, a plurality of reinforcing ribs 7 are fixedly installed at the bottom of the arc surface supporting plate 1, a vertical pipe 8 is fixedly installed at the middle part of the bottom of the arc surface supporting plate 1, a limiting rod 9 is fixedly installed at the middle part of the vertical pipe 8, and a first connecting arm 10 and a second connecting arm 11 are respectively sleeved on the surface of the limiting rod 9.

[0026] Refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 Through the structural design of the arc surface supporting plate 1, the folding cavity 2, the T-shaped arc surface limiting plate 4 and the arc surface extension plate 5 and the mutual cooperation between the structures, the function of flexibly adjusting the supporting area is realized, the corresponding supporting area can be adjusted according to the size of the roadway, the device can flexibly cope with various roadway space sizes, and the supporting effect and the flexibility of the supporting device are effectively improved.

[0027] First threaded holes 12 are arranged on the outer sides of the first connecting arm 10 and the second connecting arm 11, bidirectional threaded rods 13 are in threaded engagement in the first threaded holes 12, third connecting arms 14 are in threaded engagement on one side of the surface of the bidirectional threaded rods 13, and positioning holes 15 are arranged on the side, away from the bidirectional threaded rods 13, of the third connecting arms 14.

[0028] Refer to Figure 4 The bidirectional threaded rods 13 facilitate the connection of the first connecting arm 10, the second connecting arm 11 and the corresponding third connecting arm 14, so that the working area of the subsequent arc surface extension plate 5 is effectively constrained, and the pressure borne by the arc surface extension plate 5 can be mutually transmitted, so that the supporting device is comprehensively and uniformly stressed.

[0029] A first connecting seat 16 is fixedly installed at the middle part of the bottom of the arc surface extension plate 5, a first positioning rod 17 is fixedly installed at the middle part of the first connecting seat 16, and the first positioning rod 17 is embedded in the inside of the positioning hole 15.

[0030] Refer to Figure 1 and Figure 5 The first connecting seat 16 and the first positioning rod 17 facilitate the connection of the third connecting arm 14 and the arc surface extension plate 5, so as to control the working state of the arc surface extension plate 5.

[0031] The bottom of the arc surface extension plate 5 is fixedly provided with a second connecting seat 18 on both sides, a plurality of second positioning rods 19 are arranged in the middle part of the second connecting seat 18, and a supporting rod 20 is sleeved on the surface of the second positioning rod 19.

[0032] Referring to Figure 2 and Figure 5 , the second connecting seat 18 and the second positioning rod 19 facilitate the connection of the supporting rod 20 and the arc surface supporting plate 1, thereby facilitating the subsequent fixation of the overall device and achieving the purpose of support.

[0033] A screw hole 21 is arranged at the bottom of the supporting rod 20, and a foot 22 is threadedly connected in the screw hole 21.

[0034] Referring to Figure 1 and Figure 5 , the screw hole 21 facilitates the flexible adjustment of the extension size of the foot 22 in cooperation with the screw rod, so as to better adapt to the ground in the use environment, further increasing the flexibility of the device, and the foot 22 facilitates the increase of the mutual friction between the device and the ground, thereby further increasing the stability of the device, and also reducing the mutual abrasion between the supporting rod 20 and the ground.

[0035] T-shaped rods 23 are fixedly arranged on the upper and lower sides of the outer side of the supporting rod 20, and a cross-shaped fixing frame 24 is sleeved on the surface of the T-shaped rod 23.

[0036] Referring to Figure 1 and Figure 5 , the T-shaped rod 23 provides installation space for the cross-shaped fixing frame 24, and also transmits the acting force of the cross-shaped fixing frame 24 to the supporting rod 20, so as to ensure the stability of the supporting rod 20 during work, and the cross-shaped fixing frame 24 facilitates the fixation of the supporting rod 20 to prevent it from shaking during work.

[0037] Working principle: when using the device, the supporting rod 20 is rotated on the surface of the second positioning rod 19, the supporting rod 20 is rotated to be perpendicular to the ground, the first connecting arm 10 and the second connecting arm 11 are increased in gap with the corresponding third connecting arm 14 by rotating the bidirectional threaded rod 13, the arc surface extension plate 5 is provided with outward extension space, the arc surface extension plate 5 is gradually extended outward from the folding cavity 2 by rotating the bidirectional threaded rod 13, and when the top supporting area is adapted to the roadway, the arc surface extension plate 5 is limited by the T-shaped arc limiting plate 4, the extension length of the foot 22 is adjusted by the screw rod cooperating with the screw hole 21, and the stability of the device is ensured by the contact of the foot 22 with the ground.

[0038] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A temporary reinforcement support device for a coal mine roadway, characterised in that: The utility model provides a kind of arc surface support plate (1);The arc surface support plate (1) is internally provided with folding cavity (2), and the middle part of folding cavity (2) is fixedly installed with vertical plate (3), both sides of vertical plate (3) are fixedly installed with T-shaped arc surface limiting plate (4), both sides of folding cavity (2) are fixedly installed with arc surface extension plate (5), and the side of arc surface extension plate (5) close to vertical plate (3) is provided with clamping groove (6), and the bottom of arc surface support plate (1) is fixedly installed with several reinforcing ribs (7), and the middle part of the bottom of arc surface support plate (1) is fixedly installed with standpipe (8), and the middle part of standpipe (8) is fixedly installed with limiting rod (9), and the surface of limiting rod (9) is respectively sleeved with first connecting arm (10) and second connecting arm (11).

2. The temporary roadway reinforcement support device according to claim 1, characterized in that: The outside of first connecting arm (10) and second connecting arm (11) is provided with first screw hole (12), and the inside of first screw hole (12) is screw thread engagement connected with bidirectional screw rod (13), and the surface of bidirectional screw rod (13) is screw thread engagement connected with third connecting arm (14) on one side, and the side away from bidirectional screw rod (13) of third connecting arm (14) is provided with positioning hole (15).

3. The temporary roadway support device of claim 1, wherein: The middle part of the bottom of arc surface extension plate (5) is fixedly installed with first connecting seat (16), the middle part of first connecting seat (16) is fixedly installed with first positioning rod (17), and first positioning rod (17) is embedded in the inside of positioning hole (15).

4. The temporary roadway support device of claim 1, wherein: The both sides of the bottom of arc surface extension plate (5) are fixedly installed with second connecting seat (18), and the middle part of second connecting seat (18) is fixedly installed with second positioning rod (19), and the surface of second positioning rod (19) is sleeved with support rod (20).

5. The temporary roadway support device of claim 4, wherein: The bottom of support rod (20) is provided with silk hole (21), and the inside of silk hole (21) is screw thread engagement connected with foot (22).

6. The temporary roadway support device of claim 4, wherein: The upper and lower sides of the outside of support rod (20) are fixedly installed with T-shaped rod (23), and the surface of T-shaped rod (23) is sleeved with cross fixed frame (24).

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