An underground mine roadway support device

Abstract

The utility model discloses an underground mine roadway supporting device relates to supporting device technical field, including two symmetrical square bars, the pipe of each square bar is slidably arranged with the square pipe of adaptation, and the top of two square tubes is provided with the protection mechanism, and when L shape protection pole reaches load limit, just presses down pressure sensor, controls all infrared spotlight operation and emits infrared rays and forms an obstruction zone, warns the absent worker not to approach, avoids the harm of roadway collapse to miner, also can let miner find this dangerous place quickly, and informs the professional personnel to reinforce this roadway, when not using, utilizes the baffle and protects infrared spotlight in the installation groove, avoids the dust and falls in the lamp cap and influences its normal use, inserts the bolt into the different adjusting hole in square bar, can adjust square bar and extends the length outside square tube, and then adjusts the height of L shape protection pole, lets the device adapt to the roadway of various height, increases the application range of device.

Description

Technical Field

[0001] This utility model relates to the field of support devices, and in particular to a support device for underground mine roadways. Background Technology

[0002] After the underground mine tunnels are completed, they require strong support, which necessitates the use of specialized support devices.

[0003] The patent website discloses a mining roadway support device (publication announcement number: CN220815692U). This prior art improves the practicality and adjustability of the mining roadway support device. At the same time, the lower part of the connecting protrusion rotates into the movable end of the telescopic column, which improves the stability of the mining roadway support device.

[0004] However, there are still some shortcomings in the support devices mentioned above and those in the existing market: the existing technology cannot provide a warning when the load limit is reached, and when the load limit is reached, the collapse of the tunnel near the miner will cause injury to the miner. Therefore, those skilled in the art have proposed a support device for underground mine tunnels. Utility Model Content

[0005] In view of the shortcomings of the existing technology, this utility model provides an underground mine roadway support device, which solves the problems mentioned in the background technology.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: an underground mine roadway support device, comprising two symmetrically arranged square tubes, each of which has a square rod slidably arranged inside it.

[0007] A protective mechanism is provided above the two square tubes. The protective mechanism includes two L-shaped protective rods arranged one in front of the other. Each L-shaped protective rod has multiple evenly distributed mounting slots on its lower side. An infrared spotlight with the lamp head facing down is installed in the mounting slot. An electric cylinder is installed on the side of the L-shaped protective rod. A baffle is installed at the end of the electric cylinder to close all the mounting slots on the L-shaped protective rod.

[0008] A cavity is formed near the upper end of the square rod. A pressure plate that is adapted to the cavity is slidably disposed in the cavity. A round rod extending to the outside of the square rod and connected to the L-shaped protective rod on the same side is installed on the upper side of the pressure plate. A pressure sensor is installed at the center of the bottom surface of the cavity.

[0009] As a further technical solution of this utility model, a spring is connected between the bottom surface of the cavity and the pressure plate, and two limiting blocks with their upper surfaces lower than the upper surface of the pressure sensor are symmetrically installed on the inner wall of the cavity.

[0010] As a further technical solution of this utility model, a dovetail groove is provided on the side of one of the L-shaped guard rods near the other L-shaped guard rod, and a dovetail block that is adapted to and connected to the other L-shaped guard rod is slidably arranged in the dovetail groove.

[0011] As a further technical solution of this utility model, the square rod has several evenly distributed adjustment holes on its side, and a pin extending into one of the adjustment holes is inserted near the upper end of the square tube.

[0012] As a further technical solution of this utility model, a U-shaped bracket is installed on the side of the square tube on the side of the pin, and a threaded cylinder is installed on the side of the U-shaped bracket.

[0013] As a further technical solution of this utility model, a screw rod adapted to the threaded hole of the threaded cylinder and whose end is connected to the pin on the same side is provided therein, and a knob is installed at the other end of the screw rod.

[0014] As a further technical solution of this utility model, a base is installed at the lower end of the square tube, and four fixing holes are provided on the upper side of the base in a rectangular shape.

[0015] This utility model provides a support device for underground mine roadways, which has the following advantages compared with the prior art:

[0016] Beneficial effects:

[0017] 1. This design is a support device for underground mine roadways. When the L-shaped protective rod reaches its load limit, it presses down on the pressure sensor and controls all infrared spotlights to emit infrared rays to form a barrier, warning miners not to approach and preventing roadway collapse from injuring them. At the same time, it allows miners to quickly discover the danger and notify professionals to reinforce the roadway. When not in use, the infrared spotlights are protected in the mounting slot by a baffle to prevent dust from falling on the lamp head and affecting its normal use.

[0018] 2. This design provides a support device for underground mine roadways. By inserting a pin into different adjustment holes on a square rod, the length of the square rod extending out of the square tube can be adjusted, thereby adjusting the height of the L-shaped protective rod. This allows the device to adapt to roadways of various heights, increasing its applicability. At the same time, the pin is mounted on a U-shaped frame using a screw, preventing the pin from being lost. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of a support device for underground mine roadways;

[0020] Figure 2 A schematic diagram of the protective mechanism structure of a support device for underground mine roadways;

[0021] Figure 3A schematic diagram of the disassembled structure of a protective mechanism for an underground mine roadway support device;

[0022] Figure 4 A cross-sectional view of a support component of an underground mine roadway support device;

[0023] Figure 5 for Figure 4 Enlarged view of section A in the middle.

[0024] In the diagram: 1. Protective mechanism; 101. L-shaped protective rod; 102. Mounting groove; 103. Infrared spotlight; 104. Electric cylinder; 105. Baffle; 106. Dovetail groove; 107. Dovetail block; 2. Square tube; 3. Square rod; 4. Round rod; 5. Cavity; 6. Pressure sensor; 7. Pressure plate; 8. Spring; 9. Limiting block; 10. Adjustment hole; 11. Pin; 12. U-shaped frame; 13. Threaded cylinder; 14. Screw; 15. Knob; 16. Base; 17. Fixing hole. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-5This utility model provides a technical solution for a support device for underground mine roadways: it includes two symmetrically arranged square tubes 2, each square tube 2 has a matching square rod 3 slidably installed inside it, a protective mechanism 1 is installed above the two square tubes 2, the protective mechanism 1 includes two L-shaped protective rods 101 arranged one behind the other, each L-shaped protective rod 101 has multiple evenly distributed mounting slots 102 on its lower side, an infrared spotlight 103 with its lamp head facing downward is installed in the mounting slot 102, an electric cylinder 104 is installed on the side of the L-shaped protective rod 101, and a baffle 105 is installed at the end of the electric cylinder 104 to close all the mounting slots 102 on the L-shaped protective rod 101, a cavity 5 is opened near the upper end of the square rod 3, a matching pressure plate 7 is slidably installed in the cavity 5, a round rod 4 is installed on the upper side of the pressure plate 7 extending to the outside of the square rod 3 and connecting to the L-shaped protective rod 101 on the same side, and a pressure sensor is installed at the center of the bottom surface of the cavity 5. A spring 8 connects the bottom surface of the cavity 5 to the pressure plate 7. Two limit blocks 9 with their upper surfaces lower than the upper surface of the pressure sensor 6 are symmetrically installed on the inner wall of the cavity 5. A controller electrically connected to the pressure sensor 6 and the infrared spotlight 103 is also installed on the side of the square tube 2. The L-shaped protective rod 101 is used to support the top surface of the roadway. When the load on the L-shaped protective rod 101 is too heavy and exceeds the elastic force of the spring 8, the L-shaped protective rod 101 is pressed down, which drives the pressure plate 7 to compress. When the pressure plate 7 squeezes the pressure sensor 6, it means that the load on the L-shaped protective rod 101 has reached its limit. The pressure sensor 6 receives pressure and sends a signal to the controller. The controller controls the electric cylinder 104 to retract, which drives the baffle 105 to move and open all the mounting slots 102. At the same time, all the infrared spotlights 103 run under the L-shaped protective rod 101, forming a barrier to warn miners not to approach or pass through, so as to avoid the roadway load breaking the 101 and causing injury to the miners.

[0027] like Figure 2 and Figure 3 As shown, a dovetail groove 106 is provided on the side of one L-shaped guardrail 101 near the other L-shaped guardrail 101. A dovetail block 107 that is adapted to and connected to the other L-shaped guardrail 101 is slidably disposed in the dovetail groove 106. At the same time, the width of the two square tubes 2 can be adjusted to adapt to tunnels of various widths. When the two square tubes 2 move away from each other, the two L-shaped guardrails 101 will also move away from each other, and the dovetail block 107 will slide in the dovetail groove 106.

[0028] like Figure 1 and Figure 4As shown, the square rod 3 has several evenly distributed adjustment holes 10 on its side. A pin 11 extending into one of the adjustment holes 10 is inserted near the upper end of the square tube 2. A U-shaped bracket 12 is installed on one side of the square tube 2, next to the pin 11. A threaded cylinder 13 is installed on the side of the U-shaped bracket 12. A screw 14, matching the screw 14 and connected to the pin 11 on the same side, is installed in the threaded hole of the threaded cylinder 13. A knob 15 is installed at the other end of the screw 14. Rotating the two knobs 15 causes the screw 14 to rotate through the threaded cylinder 13, moving the screw 14 away from the corresponding square tube 2. This, in turn, causes the pin 11 to move out of the inserted adjustment hole 10, releasing the square tube. After fixing the two L-shaped guardrails 101 to the square rod 3, lift the two L-shaped guardrails 101 to move the two square rods 3 upwards until the upper surface of the L-shaped guardrails 101 contacts the top surface of the tunnel. Then, fine-tune the position of the two square rods 3 so that each pin 11 is aligned with the nearest adjustment hole 10 below. (When fine-tuning the height of the square rods 3, the pressure plate will not move because the top of the tunnel limits the L-shaped guardrails 101. The upward-moving square rods 3 will cooperate with the pressure plate 7 to compress the spring 8.) Then, reverse the two knobs 15 to move the two pins 11 in the opposite direction and insert them into the aligned adjustment holes 10. The height of the L-shaped guardrails 101 can be adjusted to adapt to tunnels of various heights.

[0029] like Figure 1 As shown, a base 16 is installed at the lower end of the square tube 2. The upper side of the base 16 has four rectangular fixing holes 17. The device is placed at the predetermined support position in the underground mine roadway. Pins are inserted into each fixing hole 17 and embedded in the roadway floor to fix the device in the roadway.

[0030] The working principle of this utility model is as follows:

[0031] Place the device at the predetermined support position in the underground mine roadway. Then, insert pins into each fixing hole 17 and embed them into the roadway floor to fix the device in the roadway. Next, rotate the two knobs 15 to rotate the screw 14 through the threaded cylinder 13, moving the screw 14 away from the corresponding square tube 3. This causes the pin 11 to move out of the inserted adjustment hole 10, releasing the fixation between the square tube 2 and the square rod 3. Then, lift the two L-shaped protective rods 101, moving the two square rods 3 upwards until the upper surface of the L-shaped protective rods 101 contacts the top surface of the roadway. Then, fine-tune the position of the two square rods 3 so that each pin 11 is aligned with the nearest adjustment hole 10. Finally, reverse the two knobs 15 to move the two pins 11 in the opposite direction and insert them into the aligned adjustment holes 10.

[0032] The L-shaped protective rod 101 is used to support the top surface of the roadway. When the load on the L-shaped protective rod 101 is too great and exceeds the elastic force of the spring 8, the L-shaped protective rod 101 is pressed down and the pressure plate 7 is compressed. When the pressure plate 7 squeezes the pressure sensor 6, it means that the load on the L-shaped protective rod 101 has reached its limit. The pressure sensor 6 receives pressure and sends a signal to the controller. The controller controls the electric cylinder 104 to retract and move the baffle 105 to open all the mounting slots 102. At the same time, all the infrared spotlights 103 run and emit infrared rays to form a barrier to warn miners not to approach.

[0033] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A support device for underground mine roadways, comprising two symmetrically arranged square pipes (2), wherein a square rod (3) adapted to the square pipe (2) is slidably disposed inside the square pipe (2), characterized in that: A protective mechanism (1) is provided above the two square tubes (2). The protective mechanism (1) includes two L-shaped protective rods (101) arranged one in front of the other. Each L-shaped protective rod (101) has multiple evenly distributed mounting slots (102) on its lower side. An infrared spotlight (103) with the lamp head facing down is provided in the mounting slot (102). An electric cylinder (104) is installed on the side of the L-shaped protective rod (101). A baffle (105) is installed at the end of the electric cylinder (104) to close all the mounting slots (102) on the L-shaped protective rod (101). A cavity (5) is provided near the upper end of the square rod (3). A pressure plate (7) adapted to it is slidably arranged in the cavity (5). A round rod (4) extending to the outside of the square rod (3) and connected to the L-shaped protective rod (101) on the same side is installed on the upper side of the pressure plate (7). A pressure sensor (6) is installed at the center of the bottom surface of the cavity (5).

2. The underground mine roadway support device according to claim 1, characterized in that, A spring (8) is connected between the bottom surface of the cavity (5) and the pressure plate (7). Two limiting blocks (9) with their upper surfaces lower than the upper surface of the pressure sensor (6) are symmetrically installed on the inner wall of the cavity (5).

3. The underground mine roadway support device according to claim 2, characterized in that, One of the L-shaped guardrails (101) has a dovetail groove (106) on its side near the other L-shaped guardrail (101), and a dovetail block (107) that is adapted to and connected to the other L-shaped guardrail (101) is slidably disposed in the dovetail groove (106).

4. The underground mine roadway support device according to claim 3, characterized in that, The square rod (3) has several evenly distributed adjustment holes (10) on its side, and a pin (11) extending into one of the adjustment holes (10) is inserted near the upper end of the square tube (2).

5. The underground mine roadway support device according to claim 4, characterized in that, A U-shaped bracket (12) is installed on the side of the square tube (2) on the side of the pin (11), and a threaded cylinder (13) is installed on the side of the U-shaped bracket (12).

6. The underground mine roadway support device according to claim 5, characterized in that, The threaded cylinder (13) has a threaded hole in which a screw (14) is adapted and whose end is connected to a pin (11) on the same side. A knob (15) is installed at the other end of the screw (14).

7. The underground mine roadway support device according to claim 6, characterized in that, The lower end of the square tube (2) is fitted with a base (16), and the upper side of the base (16) has four rectangular fixing holes (17).

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