Portable supporting device for coal mining

Abstract

The utility model relates to the technical field of coal mining, in particular to a portable supporting device for coal mining, which comprises two hydraulic cylinders, two supporting rods and a supporting rod, due to the arrangement of the fixing mechanism, when the device is used for supporting a roadway, a threaded sleeve is rotated, a bolt drives a fixing rod to enter one of round holes to fix a disc, fixing of the two supporting plates is facilitated, rotation of the two supporting plates during supporting is avoided, and meanwhile, under the action of a push block and the fixing rod, the supporting plates can be pushed by the push block and the fixing rod. When the device is folded, the device is fixed through a fixing rod and the other circular hole, so that gas in the gas storage cylinder is extruded and enters the cylinder, the piston rod can push the limiting plate to limit the circular plate, the stability between the supporting plate and the mounting plate is guaranteed, and the stability of the supporting plate when the supporting plate supports a roadway is improved; and meanwhile, the circular plate is limited by the limiting plate, so that the device can form a whole after being folded, and the difficulty in carrying is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mining, in particular to a portable supporting device used in coal mining. Background Art

[0002] Coal mines are areas where humans mine coal resources in coal-rich mining areas. They are generally divided into underground coal mines and open-pit coal mines. At present, in the process of coal mining, in order to ensure the safety of the mining process, it is usually necessary to use support devices to support the tunnels. However, most of the existing support devices are generally large in size, which is very inconvenient and not easy to carry during transportation.

[0003] The Chinese patent "A portable support device for coal mining" authorization announcement number "CN 214577120U" is fixedly connected to the outside of the fixed rod by the first rotating block and the second rotating block at the same time, and the connected support plates are limited by the two second limit blocks respectively. At the same time, the support rod is fixedly connected to the outside of the mounting tube. When carrying, the two support plates can be rotated upward by ninety degrees, and then the screws can be turned out from the two screw barrels, and then the two support plates can be folded, which reduces the volume of the device and is convenient for people to carry and use, thereby facilitating coal mining.

[0004] Although the device can be folded in the above application, when the device is unfolded for use, the connection between the two support plates and the connection between the support plate and the support rod are all movable connections, which will reduce the stability of the support plate in supporting the tunnel. At the same time, when the device is transported after being folded, the movable connections will increase the difficulty of transportation.

[0005] Therefore, a portable supporting device for coal mining is proposed to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a portable support device for coal mining in order to solve the above-mentioned problems. When the device is unfolded for use, the connection between the two support plates and the connection between the support plate and the support rod are all movable connections, which will reduce the stability of the support plate in supporting the tunnel. At the same time, when the device is folded and carried, the movable connection will increase the difficulty of carrying.

[0007] The utility model achieves the above-mentioned purpose through the following technical scheme: a portable support device for coal mine mining, comprising: two hydraulic cylinders, the top ends of the hydraulic cylinders are fixedly connected to mounting rods, the top ends of the mounting rods are fixedly connected to mounting plates, one side of the mounting plates is hinged to a support plate, the other side of one of the support plates is hinged to a connecting plate, the other side of the connecting plate is hinged to the other side of the other support plate, and a fixing mechanism is provided on one side of the support plate; wherein, the fixing mechanism comprises a rotating rod rotatably connected to the front end of one of the support plates, the inner wall of the rotating rod is rotatably connected to a threaded sleeve, the inner wall of the threaded sleeve is threadedly connected to a bolt, one end of the bolt passes through the threaded sleeve and is fixedly connected to the fixing rod, and the front end of the other support plate is fixedly connected to a disc, and the surface of the disc is provided with two circular holes.

[0008] Preferably, the fixing mechanism also includes an air cylinder fixedly connected to the other end of the disc, the inner wall of the air cylinder is slidably connected with an extrusion plate, one end of the extrusion plate is fixedly connected with a push block, the other end of the push block penetrates the inner side of the disc, the front ends of the two support plates are fixedly connected with a circular plate, the front ends of the two mounting plates are fixedly connected with a cylinder, the other end of the air cylinder is connected with a three-way pipe, the other two ends of the three-way pipe are respectively connected with the corresponding cylinder, the inner wall of the cylinder is slidably connected with a piston rod, one end of the piston rod penetrates the cylinder and is fixedly connected with a limiting plate. The gas in the air cylinder is squeezed and enters the cylinder, which is conducive to the piston rod pushing the limiting plate to limit the circular plate, ensuring the stability between the support plate and the mounting plate, thereby improving the stability of the support plate when supporting the laneway, and at the same time, when the device is folded, the fixing rod is used to fix it with another circular hole, and the limiting plate of the circular plate is completed at the same time, which is conducive to the device forming a whole after folding, reducing the difficulty of transportation.

[0009] Preferably, one end of the fixed rod is fixedly connected to a round rod, and the other end of the round rod passes through the rotating rod, which is conducive to limiting the movement of the fixed rod and preventing the fixed rod from rotating when moving horizontally.

[0010] Preferably, the other end of the piston rod is fixedly connected with a spring, and the other end of the spring is fixedly connected to the inner wall of the cylinder. Under the action of the spring, when the device is released from the fixing, the fixing mechanism is restored to the initial state.

[0011] Preferably, the push block is formed as a whole in the shape of a flat-topped cone, which is conducive to triggering the push block when the fixing rod enters different circular holes and pushing the push block to move.

[0012] Preferably, the angle between the centers of the two circular holes is 90 degrees, the diameter of the fixing rod is the same as the inner diameter of the circular hole, and the other end of the fixing rod is curved into a spherical shape, so as to ensure the stability of the fixing rod being fixed to the circular hole again when the device is contracted.

[0013] Preferably, the three-way pipe is a corrugated pipe, and the three-way pipe is a rubber component. When the device is expanded and contracted, the stability of the three-way pipe is ensured.

[0014] Preferably, the surface of the limiting plate is curved in an arc shape, and the curvature of the inner surface of the limiting plate is the same as that of the surface of the circular plate, which is conducive to better contact between the inner surface of the limiting plate and the surface of the circular plate.

[0015] The beneficial effects of the utility model are:

[0016] 1. The setting of the fixing mechanism. When the device is used to support the tunnel, the threaded sleeve is rotated so that the bolt drives the fixing rod to enter one of the circular holes to fix the disc, which is conducive to fixing the two support plates and preventing the two support plates from rotating during support. At the same time, under the action of the push block and the fixing rod, the gas in the gas storage cylinder is squeezed and enters the cylinder, which is conducive to the piston rod pushing the limit plate to limit the circular plate, ensuring the stability between the support plate and the mounting plate, thereby improving the stability of the support plate when supporting the tunnel. At the same time, when the device is folded, the fixing rod is used to fix it with another circular hole, and the limit plate is used to limit the circular plate at the same time, which is conducive to forming the device as a whole after folding, reducing the difficulty of transportation;

[0017] 2. Under the action of the spring, when the device is released, the gas flows back into the gas cylinder and the fixing mechanism is restored to its initial state. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the fixing mechanism structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the fixing rod structure of the utility model;

[0021] Figure 4 It is a cross-sectional view of the disc and the air storage cylinder of the utility model;

[0022] Figure 5 It is a schematic diagram of the limit plate structure of the utility model.

[0023] In the figure: 1, hydraulic cylinder; 2, mounting rod; 3, mounting plate; 4, supporting plate; 5, connecting plate; 6, fixing mechanism; 61, rotating rod; 62, threaded sleeve; 63, bolt; 64, fixing rod; 65, disc; 66, round hole; 67, air storage cylinder; 68, extrusion plate; 69, push block; 610, round rod; 611, tee pipe; 612, round plate; 613, cylinder; 614, piston rod; 615, limit plate; 616, spring. DETAILED DESCRIPTION

[0024] 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.

[0025] When implementing: Figure 1-5 As shown, a portable support device for coal mining comprises: two hydraulic cylinders 1, the top of the hydraulic cylinder 1 is fixedly connected with a mounting rod 2, the top of the mounting rod 2 is fixedly connected with a mounting plate 3, one side of the mounting plate 3 is hinged with a support plate 4, the other side of one of the support plates 4 is hinged with a connecting plate 5, the other side of the connecting plate 5 is hinged with the other side of the other support plate 4, and a fixing mechanism 6 is arranged on one side of the support plate 4; wherein, the fixing mechanism 6 comprises a rotating rod 61 rotatably connected to the front end of one of the support plates 4, the inner wall of the rotating rod 61 is rotatably connected with a threaded sleeve 62, the inner wall of the threaded sleeve 62 is threadedly connected with a bolt 63, one end of the bolt 63 passes through the threaded sleeve 62 and is fixedly connected with a fixing rod 64, the front end of the other support plate 4 is fixedly connected with a disc 65, and the surface of the disc 65 is provided with two circular holes 66.

[0026] The bottom end of the support plate 4 is hinged with a sliding connecting rod, and the lower end of the surface of the mounting rod 2 is installed with an articulated seat. When the device needs to be used to support the tunnel, the two support plates 4 are placed in a horizontal state and the connecting rod is pulled to move to one side of the hydraulic cylinder 1. When the connecting rod cannot move further, the other end of the connecting rod is installed and fixed to the articulated seat in the same way as in the original scheme.

[0027] like Figure 2 , Figure 4 and Figure 5As shown, the fixing mechanism 6 also includes an air storage cylinder 67 fixedly connected to the other end of the disc 65, the inner wall of the air storage cylinder 67 is slidably connected with an extrusion plate 68, one end of the extrusion plate 68 is fixedly connected with a push block 69, and the other end of the push block 69 passes through the inner side of the disc 65, the front ends of the two support plates 4 are fixedly connected with a circular plate 612, the front ends of the two mounting plates 3 are fixedly connected with a cylinder 613, the other end of the air storage cylinder 67 is connected with a three-way pipe 611, and the other two ends of the three-way pipe 611 are respectively connected to the corresponding cylinders 613, the inner wall of the cylinder 613 is slidably connected with a piston rod 614, one end of the piston rod 614 passes through the cylinder 613 and is fixedly connected with a limiting plate 615.

[0028] When the two support plates 4 are in a horizontal state, the rotating rod 61 is rotated to make the fixing rod 64 and one of the circular holes 66 in a horizontal state. At this time, the threaded sleeve 62 is rotated to make the bolt 63 move horizontally, and the fixing rod 64 is pushed into one of the circular holes 66 by the bolt 63 to fix the disc 65, thereby fixing the two support plates 4 so that the two support plates 4 are always kept in the same horizontal plane. At the same time, when the fixing rod 64 enters the circular hole 66 and continues to move, it will contact the surface of the push block 69 and squeeze the push block 69 to move into the gas storage cylinder 67, and push the squeezing plate 68 to move and squeeze the gas in the gas storage cylinder 67. The squeezed gas will enter the two cylinders 613 at the same time through the three-way pipe 611, and push the piston rod 614 to move. The center point of the limit plate 615 and the center point of the circular plate 612 are located in the same horizontal plane. When the piston rod 614 moves, it will push the limit plate 615 to move. The movement of the limit plate 615 will be tightly pressed against the surface of the corresponding circular plate 612, thereby fixing the support plate 4 and the mounting plate 3.

[0029] like Figure 3 As shown, one end of the fixed rod 64 is fixedly connected to the round rod 610, and the other end of the round rod 610 passes through the rotating rod 61. The surface of the round rod 610 is slidably connected to the inner wall of the rotating rod 61, and when the fixed rod 64 moves, the round rod 610 will be driven to move synchronously.

[0030] like Figure 5 As shown, the other end of the piston rod 614 is fixedly connected to a spring 616, and the other end of the spring 616 is fixedly connected to the inner wall of the cylinder 613. The squeezed gas enters the cylinder 613 to push the piston rod 614 to move the piston, and the spring 616 is compressed. When the squeezing of the push block 69 is released, the gas in the cylinder 613 loses the squeezing, and the spring 616 drives the piston rod 614 to reset, and the gas flows back to the gas storage cylinder 67 through the three-way pipe 611.

[0031] like Figure 4 As shown, the overall shape of the push block 69 is a flat-top cone. The surface of the push block 69 is inclined, and when the fixing rod 64 enters from different circular holes 66, the push block 69 can be pushed to move.

[0032] like Figure 4 As shown, the angle between the centers of the two circular holes 66 is ninety degrees, the diameter of the fixing rod 64 is the same as the inner wall diameter of the circular hole 66, and the other end of the fixing rod 64 is bent into a spherical shape.

[0033] When the device is folded, first rotate the threaded sleeve 62 in the opposite direction to release the fixation of the two support plates 4. At the same time, the limit plate 615 on the circular plate 612 will be released. At this time, push the two hydraulic cylinders 1 closer to each other, and pull the connecting plate 5 downward. At this time, the two support plates 4 will flip downward. When the two hydraulic cylinders 1 can no longer move, the two support plates 4 are in a vertical state and parallel. At this time, the other circular hole 66 is close to the rotating rod 61. The staff rotates the rotating rod 61 to make the fixing rod 64 horizontal with the other circular hole 66 again, and rotates the threaded sleeve 62 to fix the fixing rod 64 and the disc 65 again. At the same time, the limit plate 615 is tightened against the circular plate 612. The principle is the same as the above-mentioned operating principle. After the fixation is completed, the entire device forms a whole.

[0034] like Figure 4 and Figure 5 As shown, the three-way pipe 611 is a bellows, and the three-way pipe 611 is a rubber member. When the device is folded, the three-way pipe 611 will be deformed.

[0035] like Figure 5 As shown, the surface of the limit plate 615 is curved in an arc shape, and the curvature of the inner surface of the limit plate 615 is the same as the curvature of the surface of the circular plate 612. A rubber pad is fixedly connected to the inner surface of the limit plate 615, and the surface of the rubber pad is provided with grooves distributed in equal rows. When the limit plate 615 is pressed against the circular plate 612, the surface of the contact pad contacts the surface of the circular plate 612.

[0036] When the utility model is in use, when the device is used to support the tunnel, the two support plates 4 are in a horizontal state, and the connecting rod and the mounting rod 2 at the bottom of the support plate 4 are installed. After completing this operation, the rotating rod 61 is rotated to make the fixing rod 64 and one of the circular holes 66 remain horizontal. At this time, the rotating threaded sleeve 62 drives the bolt 63 and the fixing rod 64 to move, and the fixing rod 64 enters one of the circular holes 66 to fix the disc 65, thereby fixing the two support plates 4. At the same time, when the fixing rod 64 enters the circular hole 66 and continues to move, it will contact the surface of the push block 69 and squeeze the push block 69 to move into the gas storage cylinder 67, and push the squeezing plate 68 to move to squeeze the gas in the gas storage cylinder 67 to enter the two cylinders 613 at the same time through the three-way pipe 611, and push the piston rod 614 and the limiting plate 615 to move. The limiting plate 615 moves and presses against the surface of the corresponding circular plate 612, thereby fixing the support plate 4 and the mounting plate 3.

[0037] When folding the device, first release the fixation of the two support plates 4 and the support plates 4 and the mounting plate 3, push the two hydraulic cylinders 1 closer to each other, and pull the connecting plate 5 to move downward. At this time, the two support plates 4 will flip downward. When the two hydraulic cylinders 1 can no longer move, the two support plates 4 are in a vertical state and parallel. At this time, another circular hole 66 is close to the rotating rod 61. The staff rotates the rotating rod 61 to make the fixing rod 64 in a horizontal state, and rotates the threaded sleeve 62 to fix the fixing rod 64 and the disc 65 again. At the same time, the limit plate 615 will be pressed against the circular plate 612, so that the entire device can be folded into a whole.

[0038] It should be noted that the hydraulic cylinder 1 in the above description is a device with relatively mature application of existing technology. The specific model can be selected according to actual needs. At the same time, the hydraulic cylinder 1 can be powered by a built-in power supply or by AC power. The specific power supply method is selected according to the situation and will not be elaborated here.

[0039] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A portable support device for coal mining, characterized in that: include: Two hydraulic cylinders (1), the top end of each hydraulic cylinder (1) being fixedly connected to a mounting rod (2), the top end of each mounting rod (2) being fixedly connected to a mounting plate (3), one side of each mounting plate (3) being hinged to a support plate (4), the other side of one of the support plates (4) being hinged to a connecting plate (5), the other side of the connecting plate (5) being hinged to the other side of another support plate (4), and one side of each support plate (4) being provided with a fixing mechanism (6); The fixing mechanism (6) comprises a rotating rod (61) rotatably connected to the front end of one of the support plates (4); the inner wall of the rotating rod (61) is rotatably connected to a threaded sleeve (62); the inner wall of the threaded sleeve (62) is threadedly connected to a bolt (63); one end of the bolt (63) passes through the threaded sleeve (62) and is fixedly connected to a fixing rod (64); the front end of the other support plate (4) is fixedly connected to a disc (65); and the surface of the disc (65) is provided with two circular holes (66).

2. A portable support device for coal mining according to claim 1, characterized in that: The fixing mechanism (6) further comprises an air storage cylinder (67) fixedly connected to the other end of the disc (65); the inner wall of the air storage cylinder (67) is slidably connected to an extrusion plate (68); one end of the extrusion plate (68) is fixedly connected to a push block (69); the other end of the push block (69) penetrates the inner side of the disc (65); the front ends of the two support plates (4) are fixedly connected to a circular plate (612); the front ends of the two mounting plates (3) are fixedly connected to a cylinder (613); the other end of the air storage cylinder (67) is connected to a three-way pipe (611); the other two ends of the three-way pipe (611) are respectively connected to the corresponding cylinder (613); the inner wall of the cylinder (613) is slidably connected to a piston rod (614); one end of the piston rod (614) penetrates the cylinder (613) and is fixedly connected to a limiting plate (615).

3. A portable support device for coal mining according to claim 1, characterized in that: One end of the fixed rod (64) is fixedly connected to a round rod (610), and the other end of the round rod (610) passes through the rotating rod (61).

4. A portable support device for coal mining according to claim 2, characterized in that: The other end of the piston rod (614) is fixedly connected to a spring (616), and the other end of the spring (616) is fixedly connected to the inner wall of the cylinder (613).

5. A portable support device for coal mining according to claim 2, characterized in that: The push block (69) is integrally formed in a flat-topped cone shape.

6. A portable support device for coal mining according to claim 1, characterized in that: The angle between the centers of the two circular holes (66) is ninety degrees, the diameter of the fixing rod (64) is the same as the inner wall diameter of the circular hole (66), and the other end of the fixing rod (64) is bent into a spherical shape.

7. A portable support device for coal mining according to claim 2, characterized in that: The three-way pipe (611) is a bellows, and the three-way pipe (611) is a rubber component.

8. A portable support device for coal mining according to claim 2, characterized in that: The surface of the limiting plate (615) is curved in an arc shape, and the curvature of the inner surface of the limiting plate (615) is the same as the curvature of the surface of the circular plate (612).

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