Coal mine tunneling supporting device

Abstract

The utility model is suitable for the technical field of supporting devices, and provides a coal mine tunneling supporting device which comprises a portal frame, a supporting frame, a supporting plate, a bearing plate and a locking mechanism. The supporting frame is connected to the top of the portal frame, the supporting plate is connected to the top of the supporting frame and located on the outer side of the portal frame, transverse rods are symmetrically arranged in the portal frame, the bearing plate is connected between every two adjacent transverse rods through a locking mechanism, and the locking mechanism is arranged at the bottom of the bearing plate. According to the scheme, the bearing plate is transversely placed between the two adjacent cross rods in the portal frame to form a working platform for working of workers, meanwhile, the linkage unit in the locking mechanism drives the linkage plate to be in linkage, the cross rods are clamped through the linkage plate, a self-locking structure is formed, the bearing plate is prevented from falling off, and the working efficiency is improved. And meanwhile, the locking mechanism can be driven to conduct self-locking through the gravity of the bearing plate, and it is avoided that a large number of fasteners need to be used for fixing the bearing plate.

Description

Technical Field

[0001] The utility model belongs to the technical field of supporting devices, in particular to a coal mine excavation supporting device. Background Art

[0002] Tunneling is the work of excavating wells, tunnels and caves of various shapes, cross-sections or criss-crossing in rock (soil) layers or mineral layers. The tunneling process is divided into main process and auxiliary process. The main process is the process completed directly on the working face to ensure the progress of the working face, as well as the support operation carried out in the tunnel excavation area. Before mining underground minerals, a certain number of shafts and tunnels must be excavated according to the reasonable layout of the mining area tunnels to reach the ore bed or coal seam; if the surrounding rock is unstable, support must be carried out, and support requires the use of special support devices.

[0003] Although there are many kinds of support devices at present, there are still some problems. For example, most of the current support devices use similar steel frame structures to support the excavated mine tunnels. Although these steel frame structures can achieve the supporting effect, during construction, since the mine tunnels are generally not low in height, the steel frame located above needs to build a working platform for operation. The working platform is mostly locked with screws and steering fasteners. A large number of fasteners need to be locked during connection, and the platform position is fixed during operation. If it needs to be moved, it needs to be disassembled, which is cumbersome and seriously affects work efficiency. Utility Model Content

[0004] The utility model provides a coal mine excavation support device, aiming to solve the problem that the working platform in the existing coal mine excavation support device needs to be frequently disassembled and assembled, which seriously affects the working efficiency.

[0005] The utility model is implemented in this way: a coal mine excavation support device comprises: a gantry, a support frame, a support plate, a supporting plate and a locking mechanism;

[0006] The support frame is connected to the top of the gantry, the support plate is connected to the top of the support frame and is located outside the gantry, cross bars are symmetrically arranged inside the gantry, and the support plate is connected between two adjacent cross bars through a locking mechanism, and the locking mechanism is arranged at the bottom of the support plate;

[0007] The locking mechanism includes a fixed seat, a linkage plate and a linkage unit. The fixed seat is fixed to the bottom of the supporting plate, and an installation cavity is arranged inside the fixed seat. The center of the linkage plate is rotatably connected in the fixed seat, and two linkage plates are symmetrically arranged and located on both sides of the installation cavity. The linkage unit is arranged at the center of the installation cavity, and one end of the linkage plate is abutted against the rod in the gantry.

[0008] Preferably, the linkage unit includes a driven rod and an adjusting plate. A convex block is arranged in the installation cavity of the fixed seat, and a through hole is penetrated through the convex block. The driven rod is slidably clamped in the through hole. The adjusting plate is fixed at the top end of the driven rod, and both ends of the adjusting plate are slidably abutted against two adjacent linkage plates respectively.

[0009] Preferably, rollers are rotatably connected to both ends of the adjusting plate, and the rollers are abutted against the linkage plate.

[0010] Preferably, U-shaped seats are arranged at the bottom of the driven rod and the inner side of one end of the linkage plate respectively. Abutting rods are rotatably connected in the U-shaped seats, and the abutting rods are abutted against the cross bars in the gantry.

[0011] Preferably, a return spring is arranged in the installation cavity of the fixed seat, and the return spring is connected between two adjacent linkage plates.

[0012] Preferably, the support plate is composed of a plurality of arc-shaped plates combined into an integral structure, and vertical and horizontal keels are arranged on the inner side of the support plate.

[0013] Preferably, round rods are obliquely fixed between the gantry and the support frame, and between the support plate and the gantry and the support frame, forming a triangular stable structure.

[0014] Preferably, the vertical rod of the gantry is composed of two square steels that can be telescopically connected and combined into an integral structure.

[0015] Preferably, a pulley is rotatably connected to the bottom of the gantry, a guide rail is laid on the ground, an arc-shaped notch is arranged at the edge of the pulley, and the pulley is rollingly clamped on the guide rail through the arc-shaped notch.

[0016] Compared with the prior art, the embodiments of the present application mainly have the following beneficial effects:

[0017] In this solution, by horizontally placing the supporting plate between two adjacent cross bars in the gantry, an operation platform is formed for the staff to operate. At the same time, the linkage unit in the locking mechanism drives the linkage plates to move联动, and then the cross bars are clamped by the linkage plates, forming a self-locking structure to prevent the supporting plate from falling. It is simple and efficient, and can also drive the locking mechanism to self-lock by the gravity of the supporting plate, avoiding the need to use a large number of fasteners to fix the supporting plate, and greatly improving the operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the external overall structure schematic diagram of the present utility model;

[0019] Figure 2 is the Figure 1 enlarged view of part A of the present utility model;

[0020] Figure 3 It is a schematic diagram of the supporting plate and its connection structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the connection structure of the locking mechanism of the utility model;

[0022] In the figure: 1. gantry; 2. support frame; 3. support plate; 4. supporting plate; 5. locking mechanism; 51. fixed seat; 52. linkage plate; 53. driven rod; 54. adjustment plate; 55. roller; 56. abutment rod; 57. reset spring; 6. pulley; 7. guide rail. DETAILED DESCRIPTION

[0023] 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.

[0024] 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.

[0025] The utility model embodiment provides a coal mine excavation support device, such as Figure 1-4 As shown, it includes: a gantry 1, a support frame 2, a support plate 3, a support plate 4 and a locking mechanism 5;

[0026] The support frame 2 is connected to the top of the gantry 1, the support plate 3 is connected to the top of the support frame 2 and is located outside the gantry 1, cross bars are symmetrically arranged inside the gantry 1, and the support plate 4 is connected between two adjacent cross bars through a locking mechanism 5, and the locking mechanism 5 is arranged at the bottom of the support plate 4;

[0027] The locking mechanism 5 includes a fixed seat 51, a linkage plate 52 and a linkage unit. The fixed seat 51 is fixed to the bottom of the supporting plate 4, and an installation cavity is arranged inside the fixed seat 51. The center of the linkage plate 52 is rotatably connected in the fixed seat 51, and two linkage plates are symmetrically arranged and located on both sides of the installation cavity. The linkage unit is arranged at the center of the installation cavity, and one end of the linkage plate 52 is abutted against the cross bar in the gantry 1.

[0028] It should be noted that, when the existing support device is built, since the mine tunnel is generally not low in height, the steel frame located above needs to build a working platform for operation. The working platform is mostly locked with screws and steering fasteners. A large number of fasteners need to be locked during connection, and the platform position is fixed during operation. If it needs to be moved, it needs to be disassembled. The operation is cumbersome and seriously affects work efficiency. In order to solve this problem, a support plate 4 and a locking mechanism 5 are set in the present scheme. The support plate 4 is placed horizontally between two adjacent cross bars in the gantry 1 to form a working platform for the staff to operate, and at the same time, the linkage unit in the locking mechanism 5 drives the linkage plate 52 to be linked, and then the cross bar is clamped by the linkage plate 52 to form a self-locking structure to prevent the support plate 4 from falling. It is simple and efficient, and the gravity of the support plate 4 can also drive the locking mechanism 5 to self-lock, avoiding the need to use a large number of fasteners to fix the support plate 4, thereby greatly improving the working efficiency.

[0029] Specifically, in this embodiment, the scheme mainly includes a gantry 1, a support frame 2, a support plate 3, a supporting plate 4 and a locking mechanism 5. When in use, the gantry 1 is placed at an appropriate position in the mine tunnel, and then the support frame 2 is fixed to the top of the gantry 1, and then the supporting plate 3 is fixed to the top of the support frame 2, and the inner wall of the mine tunnel is supported by the supporting plate 3. When performing the construction operation, the supporting plate 4 is placed between two adjacent cross bars in the gantry 1, and then the deadweight of the supporting plate 4 drives the driven rod 53 to be linked, and then the linkage plate 52 is driven to be linked through the adjusting plate 54, and the cross bar is clamped by the linkage plate 52, which is simple and efficient.

[0030] In a further preferred embodiment of the present invention, Figure 1-4 As shown, the linkage unit includes a driven rod 53 and an adjustment plate 54. A protrusion is provided in the installation cavity of the fixed seat 51, and a through hole is penetrated through the protrusion. The driven rod 53 is slidably engaged in the through hole, and the adjustment plate 54 is fixed to the top end of the driven rod 53, and the two ends of the adjustment plate 54 are respectively slidably abutted against the two adjacent linkage plates 52.

[0031] In this embodiment, the sliding of the driven rod 53 drives the adjusting plate 54 to move in linkage, and then the adjusting plate 54 drives the linkage plate 52 to move in linkage as a whole synchronously to clamp and lock the cross bar.

[0032] In a further preferred embodiment of the present invention, Figure 1-4 As shown, rollers 55 are rotatably connected to both ends of the adjustment plate 54 , and the rollers 55 abut against the linkage plate 52 .

[0033] In this embodiment, the friction resistance between the linkage plate 52 and the adjustment plate 54 is reduced by the rolling of the roller 55 .

[0034] In a further preferred embodiment of the present utility model, as Figure 1-4 shown, C-shaped seats are provided at the bottom of the driven rod 53 and the inner side of one end of the linkage plate 52, and abutting rods 56 are rotatably connected in the C-shaped seats, and the abutting rods 56 abut against the cross bars in the gantry 1.

[0035] In this embodiment, the rotation of the abutting rods 56 enables the supporting plate 4 to move quickly, facilitating the operation of the staff.

[0036] In a further preferred embodiment of the present utility model, as Figure 1-4 shown, a return spring 57 is provided in the installation cavity of the fixed seat 51, and the return spring 57 is connected between two adjacent linkage plates 52.

[0037] In this embodiment, the elastic force of the return spring 57 enables the linkage plate 52 to reset quickly, and further enables the supporting plate 4 to be disassembled and assembled quickly.

[0038] In a further preferred embodiment of the present utility model, as Figure 1-4 shown, the support plate 3 is composed of a plurality of arc-shaped plates combined into an integral structure, and vertical and horizontal keels are provided on the inner side of the support plate 3.

[0039] In this embodiment, the whole support plate 3 can be combined according to the actual situation by a plurality of arc-shaped plates, and the structural strength of the support plate 3 is improved by the vertical and horizontal keels.

[0040] In a further preferred embodiment of the present utility model, as Figure 1-4 shown, round rods are obliquely fixed between the gantry 1 and the support frame 2, and between the support plate 3 and the gantry 1 and the support frame 2, forming a triangular stable structure.

[0041] In this embodiment, the stability of the overall structure of the support device is improved by forming a triangular stable structure.

[0042] In a further preferred embodiment of the present utility model, as Figure 1-4 shown, the vertical rod of the gantry 1 is composed of two telescopically connected square steels combined into an integral structure.

[0043] In this embodiment, the height of the gantry 1 can be adjusted to a certain extent according to the actual situation by the telescopic square steel.

[0044] In a further preferred embodiment of the present utility model, as Figure 1-4 shown, a pulley 6 is rotatably connected to the bottom of the gantry 1, a guide rail 7 is laid on the ground, an arc-shaped notch is provided at the edge of the pulley 6, and the pulley 6 is rollingly clamped on the guide rail 7 through the arc-shaped notch.

[0045] In this embodiment, the entire support device is guided by the guide rail 7, and the entire support device can be quickly slid to a suitable position to support the mine tunnel by the pulley 6.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] 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 coal mine excavation support device, characterized in that: Including: Gantry (1), support frame (2), support plate (3), bearing plate (4) and locking mechanism (5); The support frame (2) is connected to the top of the gantry (1), the support plate (3) is connected to the top of the support frame (2) and is located outside the gantry (1). Cross bars are symmetrically arranged inside the gantry (1), and the bearing plate (4) is connected between two adjacent cross bars through the locking mechanism (5), and the locking mechanism (5) is arranged at the bottom of the bearing plate (4); The locking mechanism (5) includes a fixed seat (51), a linkage plate (52) and a linkage unit. The fixed seat (51) is fixed to the bottom of the bearing plate (4), and an installation cavity is arranged inside the fixed seat (51). The center of the linkage plate (52) is rotatably connected inside the fixed seat (51), and there are two symmetrically arranged and located on both sides of the installation cavity. The linkage unit is arranged at the center of the installation cavity, and one end of the linkage plate (52) abuts against the cross bar inside the gantry (1).

2. The coal mine excavation support device according to claim 1, characterized in that: The linkage unit includes a driven rod (53) and an adjusting plate (54). A convex block is arranged in the installation cavity of the fixed seat (51), and a through hole is penetrated through the convex block. The driven rod (53) is slidably clamped in the through hole. The adjusting plate (54) is fixed to the top end of the driven rod (53), and both ends of the adjusting plate (54) are slidably abutted against two adjacent linkage plates (52) respectively.

3. The coal mine excavation support device according to claim 2, characterized in that: Rollers (55) are rotatably connected to both ends of the adjusting plate (54), and the rollers (55) abut against the linkage plate (52).

4. The coal mine excavation support device according to claim 2, characterized in that: C-shaped seats are arranged at the bottom of the driven rod (53) and the inner side of one end of the linkage plate (52), and a butting rod (56) is rotatably connected in the C-shaped seat, and the butting rod (56) abuts against the cross bar inside the gantry (1).

5. The coal mine excavation support device according to claim 1, characterized in that: A return spring (57) is arranged in the installation cavity of the fixed seat (51), and the return spring (57) is connected between two adjacent linkage plates (52).

6. The coal mine excavation support device according to claim 1, characterized in that: The support plate (3) is composed of multiple arc-shaped plates combined into an integral structure, and vertical and horizontal keels are arranged on the inner side of the support plate (3).

7. The coal mine excavation support device according to claim 1, characterized in that: Round rods are obliquely fixed between the gantry (1) and the support frame (2), and between the support plate (3) and the gantry (1) and the support frame (2) to form a triangular stable structure.

8. The coal mine excavation support device according to claim 1, characterized in that: The vertical rod of the gantry (1) is composed of two square steels that can be telescopically connected into an integral structure.

9. The coal mine excavation support device according to claim 1, characterized in that: A pulley (6) is rotatably connected to the bottom of the gantry (1), and a guide rail (7) is laid on the ground. An arc-shaped notch is arranged at the edge of the pulley (6), and the pulley (6) is rollingly clamped on the guide rail (7) through the arc-shaped notch.

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