Temporary support frame for coal mining tunneling roadway

Abstract

The utility model is suitable for the technical field of roadway supporting equipment, and provides a temporary supporting frame for coal mining tunneling roadway, which comprises a coal mine roadway, a first supporting column, a second supporting column and an abutting mechanism, a cylindrical cavity is formed in one end of the first supporting column, and the second supporting column is slidably connected into the cylindrical cavity and jointly combined with the first supporting column to form an integral structure. According to the scheme, the abutting mechanism is arranged, a first supporting column and a second supporting column integrally form a supporting structure, meanwhile, an abutting plate in the abutting mechanism abuts against the inner wall of a coal mine roadway, during abutting, a guide rod is stressed to slide and pushes an adjusting plate, and the adjusting plate drives a driving frame and a linkage frame to be in overall linkage; therefore, the abutting plate can be adaptively adjusted on the inner wall of the coal mine tunnel, the abutting plate and the inner wall of the coal mine tunnel can be tightly attached, a gap is eliminated, the overall stability of the temporary supporting frame is effectively improved, and potential safety hazards are eliminated.

Description

Technical Field

[0001] The utility model belongs to the technical field of roadway support equipment, and particularly relates to a temporary support frame for coal mining and tunneling roadways. Background Technique

[0002] A coal seam tunneling roadway refers to a roadway excavated along the coal seam structure in a coal mine, which is mainly used for coal mining, ventilation, hydrology and other aspects. During the mining process, it is necessary to excavate roadways for coal transportation, ventilation and drainage, etc. At the same time, the tunneling roadway can also assist in mining work, such as reducing the number of cutting eyes. In addition, during the tunneling process, it is also necessary to install a temporary support frame in the roadway to prevent collapse and eliminate potential safety hazards.

[0003] Although there are various current temporary support frames, there are still some problems. For example, most of the current temporary support frames are composed of a support rod and abutting plates at both ends, and the abutting plates are abutted against the inner wall of the roadway. However, since most of the current abutting plates are planar structures, and the inner wall of the roadway is not flat during the mining process, the abutting plates cannot be completely and tightly attached to the inner wall of the roadway, and there are certain gaps at some positions, resulting in insufficient contact area, and the overall structure of the support frame is unstable, with great potential safety hazards. Content of the Utility Model

[0004] The utility model provides a temporary support frame for coal mining and tunneling roadways, aiming to solve the problem that the abutting plates of the current support frame cannot be tightly attached to the inner wall of the roadway, resulting in potential safety hazards.

[0005] The utility model is realized as follows: A temporary support frame for coal mining and tunneling roadways includes: a coal mine roadway, a first support column, a second support column and an abutting mechanism;

[0006] One end of the first support column is provided with a cylindrical cavity, the second support column is slidably connected in the cylindrical cavity, and together with the first support column, they form an integral structure. There are two groups of the abutting mechanisms, and the two groups of abutting mechanisms are respectively arranged at the opposite ends of the first support column and the second support column;

[0007] The abutting mechanism includes a protective shell, a guide rod, an abutting plate and a linkage unit. The protective shell is connected to the opposite ends of the first support column and the second support column. The guide rod is slidably connected to one side of the protective shell and partially located in the internal cavity of the protective shell. The abutting plate is fixed to the end of the guide rod away from the protective shell, and the linkage unit is arranged in the internal cavity of the protective shell.

[0008] Preferably, the linkage unit includes an active frame, a linkage frame and an adjustment plate, the active frame and the linkage frame are both rotatably connected in the internal cavity of the protective shell, and one end of the active frame is slidably abutted against the bottom of the linkage frame, and a plurality of adjustment plates are provided, and the plurality of adjustment plates are respectively rotatably connected to one end of the active frame away from the linkage frame, and both ends of the linkage frame, and the adjustment plates are slidably abutted against the guide rod.

[0009] Preferably, a docking plate is coaxially fixed to one end of the guide rod located inside the protective shell. The docking plate has a diameter larger than that of the guide rod and is in sliding contact with the adjustment plate.

[0010] Preferably, a connecting seat is fixed at the center of the protective shell away from the abutting plate, and the connecting seat is rotatably connected to the first supporting column or the second supporting column.

[0011] Preferably, an adjustment knob is rotatably connected to one end of the first support column close to the second support column, and a screw hole is provided through the center of the adjustment knob. A thread is provided on the outer wall of the second support column, and the second support column is threadedly engaged with the screw hole through the thread.

[0012] Preferably, a limiting groove is provided on the side wall of the second supporting column, and a protrusion is provided on the inner wall of the first supporting column, and the protrusion is slidably engaged in the limiting groove.

[0013] Preferably, a plurality of positioning holes are equidistantly arranged at the bottom edge of the adjusting knob, and a positioning rod is slidably connected to one end of the first support column close to the adjusting knob, one end of the positioning rod slides and abuts against the positioning hole, and a reset member is provided on the top of the positioning rod, one end of the reset member is connected to the first support column.

[0014] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0015] In this solution, an abutment mechanism is set up, and the first support column and the second support column form a supporting structure as a whole, and at the same time, the abutment plate in the abutment mechanism abuts against the inner wall of the coal mine tunnel. When abutting, the guide rod slides under force and pushes the adjustment plate, and the adjustment plate drives the active frame and the linkage frame to be linked as a whole, so that the abutment plate can be adaptively adjusted on the inner wall of the coal mine tunnel, so that the abutment plate and the inner wall of the coal mine tunnel can be closely attached to eliminate the gap, thereby effectively increasing the overall stability of the temporary support frame and eliminating safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the supporting state structure of the temporary support frame of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of the support frame of the utility model;

[0018] Figure 3 is a schematic structural view of the abutting mechanism of the present utility model;

[0019] Figure 4 is of the present utility model Figure 2 enlarged view of position A;

[0020] Figure 5 is a schematic structural view of the adjusting knob and its connection structure of the present utility model;

[0021] In the figure: 1, coal mine roadway; 2, first support column; 3, second support column; 4, abutting mechanism; 41, protective shell; 42, guide rod; 43, abutting plate; 44, active frame; 45, linkage frame; 46, adjusting plate; 47, docking plate; 5, connecting seat; 6, adjusting knob; 7, limiting groove; 8, positioning rod; 9, positioning hole; 10, resetting member. Detailed implementation manners

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs; the terms used in the specification of this application 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 drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this application or the above drawings are used to distinguish different objects and not to describe a specific order.

[0023] Reference to "embodiment" herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of this application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0024] An embodiment of the present utility model provides a temporary support frame for coal mining and tunneling roadways, as Figures 1-5 shown, including: coal mine roadway 1, first support column 2, second support column 3, and abutting mechanism 4;

[0025] One end of the first support column 2 is provided with a cylindrical cavity, the second support column 3 is slidably connected in the cylindrical cavity and jointly forms an integral structure with the first support column 2. Two groups of abutting mechanisms 4 are provided, and the two groups of abutting mechanisms 4 are respectively arranged at the opposite ends of the first support column 2 and the second support column 3;

[0026] The abutting mechanism 4 includes a protective shell 41, a guide rod 42, an abutting plate 43 and a linkage unit. The protective shell 41 is connected to the opposite ends of the first support column 2 and the second support column 3. The guide rod 42 is slidably connected to one side of the protective shell 41 and partially located in the internal cavity of the protective shell 41. The abutting plate 43 is fixed to the end of the guide rod 42 away from the protective shell 41. The linkage unit is arranged in the internal cavity of the protective shell 41;

[0027] The linkage unit includes a driving frame 44, a linkage frame 45 and an adjusting plate 46. The driving frame 44 and the linkage frame 45 are both rotatably connected in the internal cavity of the protective shell 41, and one end of the driving frame 44 is slidably abutted against the bottom of the linkage frame 45. There are multiple adjusting plates 46, and the multiple adjusting plates 46 are respectively rotatably connected to the end of the driving frame 44 away from the linkage frame 45, and both ends of the linkage frame 45, and the adjusting plate 46 is slidably abutted against the guide rod 42.

[0028] It should be noted that since most of the abutting plates of the existing temporary support frames are flat structures, and the inner walls of the roadway are not flat during the excavation process, the abutting plates cannot be completely and tightly attached to the inner wall of the roadway, and there are certain gaps at some positions, resulting in insufficient contact area and instability of the overall structure of the support frame, posing a great potential safety hazard. To solve this problem, the abutting mechanism 4 is provided in this solution. The first support column 2 and the second support column 3 together form a support structure, and at the same time, the abutting plate 43 in the abutting mechanism 4 abuts against the inner wall of the coal mine roadway 1. During abutment, the guide rod 42 slides under force and pushes the adjusting plate 46, driving the overall linkage of the driving frame 44 and the linkage frame 45 through the adjusting plate 46, so that the abutting plate 43 can be adaptively adjusted on the inner wall of the coal mine roadway 1, and then the abutting plate 43 can be tightly attached to the inner wall of the coal mine roadway 1, eliminating the gap, effectively increasing the overall stability of the temporary support frame and eliminating potential safety hazards.

[0029] Specifically, in this embodiment, this solution mainly includes a coal mine roadway 1, a first support column 2, a second support column 3, an abutting mechanism 4, a connection seat 5 and an adjusting knob 6. When in use, first move the entire temporary support frame to an appropriate position in the coal mine roadway 1, and then rotate the adjusting knob 6. At this time, the second support column 3 is threadedly linked in the threaded hole of the adjusting knob 6 and extends until the abutting plate 43 abuts against the inner wall of the coal mine roadway 1. During abutment, the guide rod 42 slides under force and pushes the adjusting plate 46, driving the overall linkage of the driving frame 44 and the linkage frame 45 through the adjusting plate 46, so that the abutting plate 43 can be adaptively adjusted on the inner wall of the coal mine roadway 1, and then the abutting plate 43 can be tightly attached to the inner wall of the coal mine roadway 1.

[0030] In a further preferred embodiment of the present invention, as Figures 1-5As shown, at one end of the guide rod 42 located inside the protective housing 41, a docking plate 47 is coaxially fixed. The diameter of the docking plate 47 is larger than that of the guide rod 42, and it slidably abuts against the adjusting plate 46.

[0031] In this embodiment, the contact area between the guide rod 42 and the adjusting plate 46 is increased through the docking plate 47.

[0032] In a further preferred embodiment of the present utility model, as Figures 1-5 shown, a connecting seat 5 is fixed at the center of the side of the protective housing 41 away from the abutting plate 43. The connecting seat 5 is rotatably connected to the first support column 2 or the second support column 3.

[0033] In this embodiment, through the connecting seat 5, when the protective housing 41 abuts against the coal mine roadway 1, a certain angle adjustment can be made between the protective housing 41 and the support columns according to the shape of the inner wall of the coal mine roadway 1.

[0034] In a further preferred embodiment of the present utility model, as Figures 1-5 shown, a regulating knob 6 is rotatably connected to one end of the first support column 2 close to the second support column 3, and a threaded hole is provided through the center of the regulating knob 6. A thread is provided on the outer wall of the second support column 3, and the second support column 3 is in threaded cooperation with the threaded hole through the thread.

[0035] In this embodiment, through the regulating knob 6, the second support column 3 can be threadedly linked, and then slide inside the first support column 2.

[0036] In a further preferred embodiment of the present utility model, as Figures 1-5 shown, a limiting groove 7 is provided on the side wall of the second support column 3, and a convex block is provided on the inner wall of the first support column 2, and the convex block is slidably clamped in the limiting groove 7.

[0037] In this embodiment, the second support column 3 is limited through the limiting groove 7 and the convex block to prevent it from rotating during the threaded linkage of the second support column 3.

[0038] In a further preferred embodiment of the present utility model, as Figures 1-5 shown, a plurality of positioning holes 9 are equidistantly provided at the bottom edge of the regulating knob 6, and a positioning rod 8 is slidably connected to one end of the first support column 2 close to the regulating knob 6. One end of the positioning rod 8 slidably abuts in the positioning hole 9, and a reset member 10 is provided at the top of the positioning rod 8. One end of the reset member 10 is connected to the first support column 2.

[0039] In this embodiment, the positioning rod 8 is pushed by the elastic force of the reset member 10, so that the positioning rod 8 can abut against the positioning hole 9 to limit and lock the regulating knob 6 to prevent accidental touch and rotation.

[0040] It should be noted that, for the foregoing embodiments, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art should know that the present utility model is not limited by the described action sequence, because according to the present utility model, certain steps may be adopted 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 essential to the present utility model.

[0041] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the above division of units can be carried out in other ways during actual implementation. For example, 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 displayed or discussed coupling or communication connection between each other can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunications or other forms.

[0042] The units described as separate components above may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they can be located in one place, or can be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0043] The above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict and without creative work, combine, add or delete the features in the embodiments of the present utility model according to the situation, or make other adjustments, so as to obtain different technical solutions that essentially do not deviate from the concept of the present utility model, and these technical solutions also belong to the scope of protection of the present utility model.

Claims

1. Temporary support frame for coal mining and tunneling roadway, characterized in that, Including: A coal mine roadway (1), a first support column (2), a second support column (3), and an abutting mechanism (4); One end of the first support column (2) is provided with a cylindrical cavity, the second support column (3) is slidably connected in the cylindrical cavity, and together with the first support column (2), they form an integral structure. There are two groups of the abutting mechanisms (4), and the two groups of abutting mechanisms (4) are respectively arranged at the opposite ends of the first support column (2) and the second support column (3); The abutting mechanism (4) includes a protective shell (41), a guide rod (42), an abutting plate (43), and a linkage unit. The protective shell (41) is connected to the opposite ends of the first support column (2) and the second support column (3). The guide rod (42) is slidably connected to one side of the protective shell (41), and part of it is located in the internal cavity of the protective shell (41). The abutting plate (43) is fixed to the end of the guide rod (42) far from the protective shell (41). The linkage unit is arranged in the internal cavity of the protective shell (41).

2. The temporary support frame for coal mining and tunneling roadways according to claim 1, wherein The linkage unit includes a driving frame (44), a linkage frame (45), and an adjusting plate (46). The driving frame (44) and the linkage frame (45) are both rotatably connected in the internal cavity of the protective shell (41), and one end of the driving frame (44) is slidably abutted against the bottom of the linkage frame (45). There are multiple adjusting plates (46), and the multiple adjusting plates (46) are respectively rotatably connected to one end of the driving frame (44) far from the linkage frame (45), and both ends of the linkage frame (45), and the adjusting plate (46) is slidably abutted against the guide rod (42).

3. The temporary support frame for coal mining and tunneling roadways according to claim 2, wherein, One end of the guide rod (42) located inside the protective shell (41) is coaxially fixed with a docking plate (47). The diameter of the docking plate (47) is larger than that of the guide rod (42), and it is slidably abutted against the adjusting plate (46).

4. The temporary support frame for coal mining and tunneling roadway according to claim 1, characterized in that, A connecting seat (5) is fixed at the center of the side of the protective shell (41) far from the abutting plate (43). The connecting seat (5) is rotatably connected to the first support column (2) or the second support column (3).

5. The temporary support frame for coal mining and tunneling roadway according to claim 1, characterized in that, One end of the first support column (2) close to the second support column (3) is rotatably connected with an adjusting knob (6), and a threaded hole is penetrated through the center of the adjusting knob (6). Threads are provided on the outer wall of the second support column (3), and the second support column (3) is in threaded fit with the threaded hole through the threads.

6. The temporary support frame for coal mining and tunneling roadway according to claim 5, characterized in that, A limiting groove (7) is provided on the side wall of the second support column (3), and a convex block is provided on the inner wall of the first support column (2), and the convex block is slidably clamped in the limiting groove (7).

7. The temporary support frame for coal mining and tunneling roadways according to claim 5, characterized in that, A plurality of positioning holes (9) are equidistantly arranged at the bottom edge of the adjusting knob (6). A positioning rod (8) is slidably connected to one end of the first support column (2) close to the adjusting knob (6). One end of the positioning rod (8) is slidably abutted in the positioning hole (9), and a reset member (10) is provided at the top of the positioning rod (8). One end of the reset member (10) is connected to the first support column (2).

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