Mining roadway supporting structure

Abstract

The utility model provides an excavation roadway supporting structure which comprises a first arc-shaped frame, second arc-shaped frames which are symmetrically distributed are rotatably connected to the interiors of the two sides of the first arc-shaped frame through first fixing pins, a supporting mechanism is arranged between the first arc-shaped frame and the second arc-shaped frames, and supporting legs are movably sleeved with the interiors of the bottoms of the second arc-shaped frames. And a fixed block is arranged on one side of the bottom of the second arc-shaped frame, a lead screw is movably sleeved with the fixed block, and the outer side of the lead screw is sleeved with a movable block arranged on the outer side of the supporting leg in a sleeving mode through threads. According to the excavation roadway supporting structure, the first arc-shaped frame and the second arc-shaped frame can be folded and stored through the first fixing pins, and meanwhile the first arc-shaped frame and the second arc-shaped frame can be conveniently carried; through cooperation of the first support, the second support, the third fixing pin, the supporting rod and the fourth fixing pin, the first arc-shaped frame and the second arc-shaped frame can be stably fixed and supported, and meanwhile the first arc-shaped frame and the second arc-shaped frame can be erected conveniently.

Description

TECHNICAL FIELD

[0001] The utility model relates to mining equipment technical field, specifically disclose a mining roadway support structure. BACKGROUND

[0002] Chinese patent application number CN202223205527.7 discloses a kind of mining roadway support structure;Including connecting rod, the front and rear sides of the connecting rod are movably connected with support column, the top of the support column is provided with first connecting hole, the top of the support column is movably connected with arc-shaped frame, the left and right sides of the arc-shaped frame bottom are all fixedly connected with limit rod.This utility model is connected with rod, support column, arc-shaped frame, limit rod, connecting block, plug bolt and support rod etc. Structure cooperation makes device easy to install, by inserting two first connecting holes into limit rod respectively, then second connecting hole is inserted into limit rod, by rotating support rod, by pushing plug bolt, by vertically placing support column on the two sides of roadway, by pushing connecting rod to the inside of clamping groove, by connecting rod, support column, arc-shaped frame, limit rod, connecting block, plug bolt and support rod etc. Structure cooperation makes device easy to install.

[0003] The above-mentioned arc-shaped frame adopts an integrated structure design, which is inconvenient to transport and erect due to the limited space in the roadway, and the height of the arc-shaped frame cannot be adjusted after installation, so that the arc-shaped frame cannot effectively support the roadway. UTILITY MODEL CONTENT

[0004] In view of the above-mentioned defects or deficiencies in the prior art, the present application aims to provide a kind of mining roadway support structure, including first arc-shaped frame, the inside of the two sides of the first arc-shaped frame is rotatably connected with the second arc-shaped frame of symmetrical distribution by first fixed pin, support mechanism is arranged between the first arc-shaped frame and the second arc-shaped frame, support leg is movably sleeved in the inside of the bottom of the second arc-shaped frame, and one side of the bottom of the second arc-shaped frame is provided with fixed block, screw rod is movably sleeved in the inside of the fixed block, moving block is threadedly sleeved on the outside of the screw rod, and the moving block is movably sleeved in the inside of the fifth fixed pin movably sleeved in the inside of the support leg, and connecting plate is fixedly installed between every two second arc-shaped frames by bolt.

[0005] Preferably, the support mechanism includes a first support seat arranged inside the first arc-shaped frame and a second support seat arranged inside the second arc-shaped frame, the first support seat is rotatably connected with a support rod inside the first support seat through a third fixed pin, and the support rod is movably sleeved with a fourth fixed pin movably sleeved inside the second support seat.

[0006] Preferably, the outside of the top end of the screw rod is provided with an annular boss located below the fixed block, and a snap ring is connected to the outside of the top end of the screw rod extending out of the fixed block.

[0007] Preferably, the inside of the support leg is provided with positioning holes which are equidistantly distributed and matched with the fifth fixing pin, and the bottom of the support mechanism is provided with a support plate. Advantages

[0008] 1. The tunnel support structure of the application can be folded and unfolded between the first arc-shaped frame and the second arc-shaped frame through the first fixing pin, and can be stably fixed and supported through the cooperation of the first support, the second support, the third fixing pin, the support rod and the fourth fixing pin when the first arc-shaped frame and the second arc-shaped frame are unfolded.

[0009] 2. The tunnel support structure of the application can quickly adjust the height of the first arc-shaped frame and the second arc-shaped frame of the support leg through the switching of the position of the fifth fixing pin in the positioning hole, and can fine-tune the height of the first arc-shaped frame and the second arc-shaped frame through the rotation of the screw rod to drive the first arc-shaped frame and the second arc-shaped frame to move upwards, so as to ensure that the first arc-shaped frame and the second arc-shaped frame can effectively support the tunnel. BRIEF DESCRIPTION OF DRAWINGS

[0010] Other features, objects and advantages of the application will become more apparent from the following detailed description of non-limiting embodiments with reference to the drawings:

[0011] Figure 1 It is a structural schematic view of the application;

[0012] Figure 2 It is a side view of the structure of the application;

[0013] Figure 3 It is Figure 1 It is an enlarged view of the structure at A in the middle.

[0014] In the figure: 1, first arc-shaped frame; 2, first fixing pin; 3, second arc-shaped frame; 4, support mechanism; 41, first support; 42, second support; 43, third fixing pin; 44, support rod; 45, fourth fixing pin; 5, support leg; 6, fixed block; 7, screw rod; 8, moving block; 9, fifth fixing pin; 10, bolt; 11, connecting plate; 12, annular boss; 13, clasp; 14, positioning hole. DETAILED DESCRIPTION

[0015] The application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the related application, and are not a limitation of the application. In addition, it should be noted that only the parts related to the application are shown in the drawings for convenience of description.

[0016] The different kinds of section lines in the drawing are not marked according to the national standard, and the material of the element is not required, and the sectional view of the element in the drawing is distinguished.

[0017] Please refer to Figures 1-3 The utility model discloses a kind of tunnel support structures of mining, including first arc frame 1, the inside of both sides of first arc frame 1 is rotationally connected with the second arc frame 3 of symmetrical distribution by first fixed pin 2, support mechanism 4 is arranged between first arc frame 1 and second arc frame 3, support leg 5 is movably sleeved in the inside of the bottom of second arc frame 3, and one side of the bottom of second arc frame 3 is provided with fixed block 6, fixed block 6 is movably sleeved with screw rod 7 in the inside, the outside of screw rod 7 is threadedly sleeved with moving block 8 that is sleeved on the outside of support leg 5, the inside of moving block 8 is movably sleeved with fifth fixed pin 9 that is movably sleeved in the inside of support leg 5, connecting plate 11 is fixedly installed between second arc frame 3 by bolt 10, and adjacent support structure can be fixed by the cooperation of bolt 10 and connecting plate 11 Limit, so that it is not easy to produce inclination when being subjected to external force.

[0018] Among them, support mechanism 4 includes first support 41 arranged in the inside of first arc frame 1 and second support 42 arranged in the inside of second arc frame 3, the inside of first support 41 is rotationally connected with support rod 44 by third fixed pin 43, the inside of support rod 44 is movably sleeved with fourth fixed pin 45 movably sleeved in the inside of second support 42, the limiting of second arc frame 3 by support rod 44 can be released by disassembling fourth fixed pin 45, so that second arc frame 3 can be rotated around the axis of first fixed pin 2, and second arc frame 3 can be folded, and then the space occupied by arc frame can be reduced, to facilitate the carrying and erection of arc frame.

[0019] Among them, the outside of the top end of screw rod 7 is provided with annular boss 12 located below fixed block 6, the limiting of screw rod 7 can be carried out by annular boss 12, and screw rod 7 can be moved out from the inside of second arc frame 3 by moving block 8 in the process of rotation, and then the height of first arc frame 1 and second arc frame 3 can be adjusted, and the top end outside of screw rod 7 extending out of fixed block 6 is connected with snap ring 13, the limiting of screw rod 7 can be carried out by snap ring 13, to prevent support leg 5 from falling off from the inside of second arc frame 3 in the process of carrying.

[0020] The inside of the support leg 5 is through the positioning hole 14 which is distributed at equal intervals and matched with the fifth fixing pin 9, by changing the position of the fifth fixing pin 9 in the positioning hole 14, the support leg 5 can be quickly stretched and retracted, and the initial height of the first arc-shaped frame 1 and the second arc-shaped frame 3 after unfolding can be adjusted, and the bottom of the support mechanism 4 is provided with a support plate, the contact area of the support leg 5 with the ground can be increased through the support plate, so that the support leg 5 is not easy to sink when subjected to external force.

[0021] When the roadway support structure is installed, the second arc-shaped frame 3 is axially rotated around the first fixing pin 2 and is unfolded, the fifth fixing pin 9 is disassembled, the support leg 5 is pulled out from the inside of the second arc-shaped frame 3 one by one, when the support leg 5 is stretched to a suitable height, the fifth fixing pin 9 is sleeved in the inside of the support leg 5 and the moving block 8, the screw rod 7 is rotated by using a wrench, the screw rod 7 rotates and drives the second arc-shaped frame 3 to move up through thread transmission, when the first arc-shaped frame 1 contacts with the top of the roadway, the rotation of the screw rod 7 is stopped, when the adjacent two arc-shaped frames are erected, the connecting plate 11 is fixedly installed between the two adjacent second arc-shaped frames 3 through the bolts 10, the installation of a single group of roadway support structure is completed, and the contents not described in detail in the description belong to the prior art known to those skilled in the art.

[0022] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0023] The above description is only the preferred embodiment of the present application and the explanation of the applied technical principles. Those skilled in the art should understand that the utility model range involved in the present application is not limited to the technical solutions formed by the specific combination of the above technical features, and also covers other technical solutions formed by the combination of the above technical features or their equivalent features without departing from the utility model concept. For example, the technical solutions formed by the mutual replacement of the above features and the technical features disclosed in the present application (but not limited to) having similar functions.

Claims

1. A tunnel support structure for mining, comprising a first arc-shaped frame (1), characterized in that: The interior of both sides of the first arc frame (1) is rotatably connected to the second arc frame (3) by the first fixing pin (2). A support mechanism (4) is provided between the first arc frame (1) and the second arc frame (3). The bottom of the second arc frame (3) is fitted with a support leg (5). A fixing block (6) is provided on one side of the bottom of the second arc frame (3). The fixing block (6) is fitted with a screw rod (7). The screw rod (7) is threaded with a moving block (8) fitted on the outside of the support leg (5). The moving block (8) is fitted with a fifth fixing pin (9) that is movably connected inside the support leg (5). The second arc frame (3) is fixed with connecting plates (11) by bolts (10) between each pair.

2. The tunnel support structure for mining as described in claim 1, characterized in that: The support mechanism (4) includes a first support (41) located inside the first arc frame (1) and a second support (42) located inside the second arc frame (3). The first support (41) is rotatably connected to a support rod (44) via a third fixing pin (43). The support rod (44) is movably sleeved with a fourth fixing pin (45) movably sleeved inside the second support (42).

3. The tunnel support structure according to claim 1, characterized in that: The outer side of the top end of the lead screw (7) is provided with an annular boss (12) located below the fixing block (6), and the outer side of the top end of the lead screw (7) extending out of the fixing block (6) is engaged with a retaining ring (13).

4. The tunnel support structure for mining as described in claim 1, characterized in that: The interior of the support leg (5) has equally spaced positioning holes (14) that are adapted to the fifth fixing pin (9), and the bottom of the support mechanism (4) is provided with a support plate.

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