Roadway supporting device

Abstract

The invention relates to the technical field of roadway supporting, and discloses a roadway supporting device which comprises supporting legs and symmetrically-arranged side protection plates and further comprises a protection assembly, the protection assembly comprises a protection net, an upper hook is arranged at one end of the protection net, a lower hook is arranged at the other end of the protection net, and a shielding pad is arranged between the upper hook and the lower hook. A plurality of supporting plates are arranged between the side protection plates, and the control assembly moves according to a set path to clean the protection net when excessive solid matter is accumulated on the protection net and deformation occurs. Through cooperation of the protection assembly and the control assembly, when many solid substances are accumulated on the protection net, the protection net is deformed due to the large weight, then the protection net extends out of the gap between the adjacent supporting plates, the control assembly moves on a set path, the protection net is extruded to a certain degree from the side away from a roadway, and therefore the protection net is protected. And solid substances accumulated on the protective net slide down along the protective net, so that the probability of blockage is reduced, and the service life of the protective net is prolonged.

Description

Technical Field

[0001] This invention relates to the field of tunnel support technology, specifically a tunnel support device. Background Technology

[0002] As mining depth increases, the geological environment becomes more complex, and the number of mines prone to rockbursts, the frequency of rockbursts, and the number of deaths caused are gradually increasing. In recent years, coal mine rockburst accidents have caused extremely serious personnel and property losses, seriously threatening the safety of underground personnel and severely restricting coal mine production efficiency.

[0003] In existing technologies, U-shaped supports and protective nets are often used in conjunction for protection within roadways: the U-shaped supports are erected with an arc-shaped steel structure, serving as the main load-bearing framework to resist the pressure of the surrounding rock; the protective nets are laid close to the inner or outer side of the supports and fixed to the supports with wires and anchor bolts, forming a flexible shielding layer. The combination of these two technologies can intercept rock fragments, prevent roof collapse and sidewall spalling, and disperse localized stress. It utilizes the rigid support of the supports while using the protective nets to buffer impacts, thereby improving the overall deformation resistance of the roadway and ensuring operational safety.

[0004] However, existing protective nets are mostly fixed to the sidewalls of roadways. When a roof collapse or spalling occurs, most of the larger solid materials will slide down along the net, while smaller coal slag and gangue will fall through the gaps between the nets. However, a few larger or stickier materials will get stuck or adhere to the net and cannot fall. As such materials accumulate, some of the large materials that could have slid down the net are also stuck, increasing the load on the net and shortening its service life. Summary of the Invention

[0005] In view of this, a roadway support device is proposed to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a roadway support device, comprising symmetrically arranged side guard plates, with a plurality of support legs fixedly installed below each side guard plate, and further comprising:

[0007] A protective assembly, disposed between the side guard plates, is used to protect against falling gangue and coal slag;

[0008] A control assembly, located between the side guard plates, is used to clean up accumulated gangue and slag;

[0009] The protective component includes a protective net, with an upper hook on one side and a lower hook on the other side. A shielding pad is provided between the upper and lower hooks. Several support plates are provided between the two side guard plates. When the protective net is deformed due to excessive accumulation of solid material, the control component moves along a set path to clean the protective net.

[0010] Preferably, the side guard plate has an inner cavity, a limit rod is fixedly installed on the side wall of the inner cavity, a moving block is slidably installed on the limit rod, a short connecting rod is hinged to the moving block, a long connecting rod is fixedly installed at the end of the short connecting rod away from the moving block, and a pushing block is rotatably installed at the end of the long connecting rod away from the short connecting rod, the pushing block being in close contact with the side wall of the inner cavity.

[0011] Preferably, the control component includes a rod with a pad fixedly mounted on it, the pad abutting against the shielding pad.

[0012] Preferably, a connecting rod is fixedly installed on the rod body, and the connecting rod is fixedly connected to the moving block.

[0013] Preferably, the cross-section of the rod is semi-circular, and the arc surface is close to the side of the shielding pad.

[0014] Preferably, the pad is located between the arc surface of the rod and the shielding pad, and the pad is made of rough rubber material, and the shielding pad at the contact position with the pad is also coated with a plating layer.

[0015] Preferably, the initial state of the shielding pad is V-shaped, and the rod is located at the bend of the shielding pad.

[0016] Preferably, the protective components and control components between the side guard plates are provided in two sets, and are symmetrically arranged on both sides with the plane perpendicular to the roadway floor as the plane of symmetry.

[0017] Preferably, the support plate is fixedly installed between the side guard plates, with equidistant spacing between adjacent support plates, and the side of the support plate closest to the roadway is made of shock-absorbing material.

[0018] Preferably, the support plate is rotatably installed between the side guard plates. The support plate is T-shaped, with the longer sections of the support plate tapering inwards on both sides. There is a distance of 4-5 cm between the longer sections of adjacent support plates.

[0019] Compared with the prior art, the present invention provides a tunnel support device with the following advantages:

[0020] 1. This invention, through the cooperation of protective components and control components, allows the protective net to deform when a large amount of solid material accumulates on it, causing it to protrude from the gap between adjacent support plates. By controlling the component to move along a set path, the protective net is compressed from the side away from the roadway, causing the solid material accumulated on it to slide down the protective net, reducing the probability of blockage and extending the service life of the protective net.

[0021] 2. This invention, through the cooperation of a protective net, a shielding pad, and a pole, addresses the issue that some smaller solid objects may fall through the mesh of the protective net. The shielding pad provides secondary protection for these small solid objects, preventing them from directly hitting the heads of workers below or passing by, thus reducing the risk to workers. Simultaneously, some even smaller objects may become stuck in the gap between the shielding pad and the pole. When the shielding pad moves, it causes the pole to deflect at a certain angle, causing the stuck objects to fall out, reducing the probability of jamming and ensuring the stability of the device.

[0022] 3. This invention utilizes the cooperation of support plates and pushing blocks. Due to the high rock pressure in some tunnels, the impact force of falling gangue is also significant. If the support plates are fixed in place, they are easily damaged under the impact force. Rotating support plates can provide some pressure relief, reducing the probability of damage. At the same time, solid materials stuck in the protective netting often have a thin and sharp end. When the pushing block moves to the support plate, it will compress the support plate to reset. At this time, the side of the support plate will compress the sharp end of the solid material, causing it to break off under pressure. This allows the material stuck in the protective netting mesh to fall off more easily, improving cleaning efficiency. Attached Figure Description

[0023] Figure 1 This is an overall structural diagram of the present invention;

[0024] Figure 2 This is a structural diagram of the side guard plate after it has been removed according to the present invention;

[0025] Figure 3 This is an overall structural diagram of the shielding pad of the present invention;

[0026] Figure 4 For the present invention Figure 3 Overall structural diagram at point A;

[0027] Figure 5 This is a diagram showing the internal structure of the side guard plate of the present invention;

[0028] Figure 6 This is an overall structural diagram of another type of support plate according to the present invention.

[0029] In the picture:

[0030] 1. Support legs;

[0031] 2. Side guard plate; 21. Limiting rod; 22. Moving block; 23. Short connecting rod; 24. Long connecting rod; 25. Pushing block; 26. Connecting rod;

[0032] 3. Protective components; 31. Protective netting; 32. Sheltering pad; 33. Support plate; 34. Upper hook; 35. Lower hook;

[0033] 4. Control components; 41. Rod; 42. Pad. Detailed Implementation

[0034] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, some features described in the examples may be combined in other examples.

[0035] like Figures 1 to 6 As shown, this embodiment of the invention provides a roadway support device, including symmetrically arranged side guard plates 2, with a plurality of support legs 1 fixedly installed below each side guard plate 2, and further including:

[0036] The protective component 3 is installed between the side guard plates 2 to protect against falling gangue and coal slag;

[0037] Control component 4, located between the side guard plates 2, is used to clean up the accumulated gangue and coal slag;

[0038] The protective component 3 includes a protective net 31. The protective net 31 has an upper hook 34 on one side and a lower hook 35 on the other side. A shielding pad 32 is provided between the upper hook 34 and the lower hook 35. Several support plates 33 are provided between the two side guard plates 2. When the protective net 31 is deformed due to excessive accumulation of solid material, the control component 4 moves along a set path to clean the protective net 31.

[0039] The working principle and beneficial effects of the above technical solution are as follows: After installing the device in the required position, so that the protective net 31 is close to the side wall of the roadway, and after checking that all components are correct, it can be put into use. When situations such as rock falling occur, larger rocks slide down the protective net 31 to the ground, while smaller rocks and slag fall through the mesh of the protective net 31 onto the shielding pad 32. Under the action of the shielding pad 32, they slide downwards, reducing the occurrence of rocks falling directly onto the heads of workers.

[0040] In one embodiment: an inner cavity is provided inside the side guard plate 2, a limit rod 21 is fixedly installed on the side wall of the inner cavity, a moving block 22 is slidably installed on the limit rod 21, a short connecting rod 23 is hinged to the moving block 22, a long connecting rod 24 is fixedly installed at the end of the short connecting rod 23 away from the moving block 22, and a pushing block 25 is rotatably installed at the end of the long connecting rod 24 away from the short connecting rod 23, and the pushing block 25 is in close contact with the side wall of the inner cavity.

[0041] The working principle and beneficial effects of the above technical solution are as follows: When the moving block 22 moves on the limiting rod 21, it will drive the short connecting rod 23 to rotate. At this time, the long connecting rod 24 will rotate with the short connecting rod 23, thereby driving the pushing block 25 to rotate around the connection between the long connecting rod 24 and the short connecting rod 23, sweeping across the protective net 31 within the set range. Since the length of the short connecting rod 23 is less than the length of the long connecting rod 24, the moving block 22 only needs to move a small distance to allow the pushing block 25 to sweep across a larger range, thus improving work efficiency.

[0042] In one embodiment, the control component 4 includes a rod 41, on which a pad 42 is fixedly mounted, and the pad 42 abuts against the shielding pad 32.

[0043] The working principle and beneficial effects of the above technical solution are as follows: Since the pad 42 and the shielding pad 32 abut against each other, and the pad 42 is fixedly installed on the rod 41, when the shielding pad 32 is pulled and moved by the protective net 31, it will drive the rod 41 to move a certain distance, so that the deformation of the protective net 31 can automatically trigger the cleaning, thereby reducing the risk of using electrical components in high gas roadways.

[0044] In one embodiment: a connecting rod 26 is fixedly installed on the rod body 41, and the connecting rod 26 is fixedly connected to the moving block 22.

[0045] The working principle and beneficial effects of the above technical solution are as follows: when the rod 41 moves, it will drive the connecting rod 26 to move, which in turn will drive the moving block 22 to move.

[0046] In one embodiment, the cross-section of the rod 41 is semi-circular, and the arc surface is close to the side of the shielding pad 32.

[0047] The working principle and beneficial effects of the above technical solution are as follows: the curved surface close to the shielding pad 32 can effectively reduce the occurrence of some small debris getting stuck between the shielding pad 32 and the rod 41. Since most of the small debris is relatively sharp, if it gets stuck here and moves with the shielding pad 32 and the rod 41, it is more likely to cause wear on the shielding pad 32 or even be punctured by the sharp debris, which greatly reduces its service life. At the same time, the flat section of the rod 41 faces the direction in which the debris falls, which allows the debris to slide down the flat section better. In addition, since the shielding pad 32 is a flexible pad, the solid material falling on the shielding pad 32 will be buffered, reducing its impact force.

[0048] In one embodiment: the pad 42 is located between the arc surface of the rod 41 and the shielding pad 32, and the pad 42 is made of rough rubber material, and the shielding pad 32 at the contact position with the pad 42 is also coated with a plating layer.

[0049] The working principle and beneficial effects of the above technical solution are as follows: the coating on the shielding pad 32 increases the friction. When the shielding pad 32 is pulled and moved, it not only causes the rod 41 to translate, but also causes it to rotate at a certain angle. This allows some of the debris stuck here to be cleared out with the rotation of the rod 41, reducing the probability of jamming.

[0050] In one embodiment: the initial state of the shielding pad 32 is V-shaped, and the rod 41 is located at the bend of the shielding pad 32, at which time the rod 41 and the shielding pad 32 are in a balanced state.

[0051] The working principle and beneficial effects of the above technical solution are as follows: Since the limiting rod 21 and the moving block 22 are both inclined, the friction between them can make the shielding pad 32 and the rod 41 in a balanced state. A spring can also be set between the moving block 22 and the inner wall of the side guard plate 2 to provide sufficient initial blocking force for the shielding pad 32 and the rod 41. At the same time, the spring can also drive the entire device to reset after solid material falls off the protective net 31, so that it can be used repeatedly.

[0052] In one embodiment, two sets of protective components 3 and control components 4 are provided between the side guard plates 2, and are symmetrically arranged on both sides with the plane perpendicular to the roadway floor as the plane of symmetry.

[0053] The working principle and beneficial effects of the above technical solution are as follows: the specific number of protective components 3 and control components 4 can be selected according to the specific environment of the tunnel. If the overall environment of the tunnel is good, two sets can be set up to clean the protective net 31 in different ranges. If the overall environment of the tunnel is poor, multiple sets can be set up to reduce the range of each protective component 3 and control component 4, so that the cleaning effect of the protective net 31 in a smaller range is better, and the pressure on each protective component 3 and control component 4 can be reduced, thus reducing the probability of damage.

[0054] In one embodiment, the support plate 33 is fixedly installed between the side guard plates 2, and the adjacent support plates 33 are equidistant from each other. The side of the support plate 33 closest to the roadway is made of shock-absorbing material.

[0055] The working principle and beneficial effects of the above technical solution are as follows: the protective net 31 can only protect against falling rock, and the support plate 33 is required to support the roadway wall. The support plate 33 set at equal intervals can distribute the pressure evenly and reduce the probability of damage to the support plate 33. At the same time, the shock-absorbing material can ensure the support effect to a certain extent.

[0056] In one embodiment: the support plate 33 is rotatably installed between the side guard plates 2. The support plate 33 is T-shaped. The two sides of the longer section of the support plate 33 are bent inward and downward. There is a distance of 4-5cm between the longer sections of adjacent support plates 33.

[0057] The working principle and beneficial effects of the above technical solution are as follows: Due to the large impact pressure in some roadways, the impact force of falling gangue is also large. If the support plate 33 is fixed, it is easy to be damaged under the impact force. The rotating support plate 33 can play a certain role in reducing the pressure and reducing the probability of damage to the support plate 33. At the same time, the end of the solid material stuck in the protective net 31 is relatively thin and sharp. When the pushing block 25 moves to the support plate 33, it will squeeze the support plate 33 to reset. At this time, the side of the support plate 33 will squeeze the sharp end of the solid material. The sharp end will break under the force, which will make it easier for the material stuck in the mesh of the protective net 31 to fall off, thus improving the cleaning efficiency.

[0058] Working principle and usage procedure: Install this device in the required location, ensuring that the protective net 31 is tightly attached to the side wall of the roadway. After checking that all components are correct, it can be put into use. When situations such as rockfall occur, larger rocks will slide down the protective net 31 to the ground, while smaller rocks and slag will fall through the mesh of the protective net 31 onto the shielding pad 32. Under the action of the shielding pad 32, they will slide downwards, reducing the occurrence of rocks falling directly onto the heads of workers.

[0059] Specifically, since the pad 42 and the shielding pad 32 are in contact, and the pad 42 is fixedly installed on the pole 41, when the shielding pad 32 is pulled and moved by the protective net 31, it will drive the pole 41 to move a certain distance, which can realize automatic triggering of cleaning through the deformation of the protective net 31, thereby reducing the risk of using electrical components in high gas roadways.

[0060] After this, the coating on the shielding pad 32 increases friction. When the shielding pad 32 is pulled and moved, it not only causes the rod 41 to translate but also rotates at a certain angle. This allows some of the debris stuck there to be cleared out as the rod 41 rotates, reducing the probability of jamming. When the rod 41 moves, it causes the connecting rod 26 to move, which in turn causes the moving block 22 to move. When the moving block 22 moves on the limiting rod 21, it causes the short connecting rod 23 to rotate. At this time, the long connecting rod 24 will rotate with the short connecting rod 23, which in turn causes the pushing block 25 to rotate around the connection between the long connecting rod 24 and the short connecting rod 23, sweeping across the protective net 31 within the set range. Since the length of the short connecting rod 23 is less than the length of the long connecting rod 24, the moving block 22 only needs to move a small distance to allow the pushing block 25 to sweep across a larger area, improving work efficiency.

[0061] Furthermore, the curved surface close to the shielding pad 32 can effectively reduce the occurrence of smaller debris getting stuck between the shielding pad 32 and the rod 41. Since most of the smaller debris is relatively sharp, if it gets stuck here and moves with the shielding pad 32 and the rod 41, it is more likely to cause wear on the shielding pad 32 or even be punctured by the sharp debris, greatly reducing its service life. At the same time, the flat section of the rod 41 faces the direction in which the debris falls, allowing the debris to slide down the flat section better. Also, since the shielding pad 32 is a flexible pad, solid materials falling on the shielding pad 32 will be buffered, reducing their impact force.

[0062] In addition, since the limiting rod 21 and the moving block 22 are both inclined, the friction between them can keep the shielding pad 32 and the rod 41 in a balanced state. A spring can also be installed between the moving block 22 and the inner wall of the side guard plate 2 to provide sufficient initial blocking force for the shielding pad 32 and the rod 41. At the same time, the spring can also drive the entire device to reset after solid material falls off the protective net 31, so that it can be used repeatedly.

[0063] It is worth noting that the specific number of protective components 3 and control components 4 can be selected according to the specific environment of the tunnel. If the overall environment of the tunnel is good, two sets can be set up to clean the protective net 31 in different ranges. If the overall environment of the tunnel is poor, multiple sets can be set up to reduce the range of each protective component 3 and control component 4, so that the cleaning effect of the protective net 31 in a smaller range is better, and the pressure on each protective component 3 and control component 4 can be reduced, thus reducing the probability of damage.

[0064] In another scenario, due to the high rock pressure in some tunnels, the impact force of falling gangue is also significant. If the support plate 33 is fixed in this case, it is easily damaged under the impact force. The rotating support plate 33 can provide some pressure relief and reduce the probability of damage. At the same time, the end of the solid material stuck in the protective net 31 is relatively thin and sharp. When the pushing block 25 moves to the support plate 33, it will squeeze the support plate 33 to reset. At this time, the side of the support plate 33 will squeeze the sharp end of the solid material, and the sharp end will break under the force, making it easier for the material stuck in the mesh of the protective net 31 to fall off, thus improving the cleaning efficiency.

[0065] The embodiments of the present invention have been described above, but the embodiments are not limited to the specific implementation methods described above. The specific implementation methods described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the embodiments described above, all of which are within the protection scope of the embodiments described above.

Claims

1. A roadway support device, comprising symmetrically arranged side guard plates (2), wherein a plurality of support legs (1) are fixedly installed below each side guard plate (2), characterized in that, Also includes: The protective component (3) is disposed between the side guard plates (2) to protect against falling gangue and slag; A control component (4) is disposed between the side guard plates (2) for cleaning up the accumulated gangue and slag; The protective component (3) includes a protective net (31), with an upper hook (34) on one side and a lower hook (35) on the other side. A shielding pad (32) is provided between the upper hook (34) and the lower hook (35). Several support plates (33) are provided between the two side guard plates (2). When the protective net (31) is deformed due to excessive accumulation of solid material, the control component (4) moves along a set path to clean the protective net (31).

2. The tunnel support device according to claim 1, characterized in that: The side guard plate (2) has an inner cavity. A limit rod (21) is fixedly installed on the side wall of the inner cavity. A moving block (22) is slidably installed on the limit rod (21). A short connecting rod (23) is hinged on the moving block (22). A long connecting rod (24) is fixedly installed at the end of the short connecting rod (23) away from the moving block (22). A pushing block (25) is rotatably installed at the end of the long connecting rod (24) away from the short connecting rod (23). The pushing block (25) is in close contact with the side wall of the inner cavity.

3. The tunnel support device according to claim 1, characterized in that: The control component (4) includes a rod (41) on which a pad (42) is fixedly installed, and the pad (42) abuts against the shielding pad (32).

4. A roadway support device according to claim 3, characterized in that: A connecting rod (26) is fixedly installed on the rod body (41), and the connecting rod (26) is fixedly connected to the moving block (22).

5. A roadway support device according to claim 4, characterized in that: The cross-section of the rod (41) is semi-circular, and the arc surface is close to the side of the shielding pad (32).

6. A tunnel support device according to claim 5, characterized in that: The pad (42) is located between the arc surface of the rod (41) and the shielding pad (32), and the pad (42) is made of rough rubber material. The shielding pad (32) at the contact position with the pad (42) is also coated with a plating layer.

7. A roadway support device according to claim 6, characterized in that: The initial state of the shielding pad (32) is V-shaped, and the rod (41) is located at the bend of the shielding pad (32).

8. A roadway support device according to claim 7, characterized in that: The protective components (3) and control components (4) between the side guard plates (2) are provided in two sets, and are symmetrically arranged on both sides with the plane perpendicular to the roadway floor as the plane of symmetry.

9. A roadway support device according to claim 8, characterized in that: The support plate (33) is fixedly installed between the side guard plates (2), and the adjacent support plates (33) are equidistant from each other. The side of the support plate (33) closest to the roadway is made of shock-absorbing material.

10. A roadway support device according to claim 9, characterized in that: The support plate (33) is rotatably installed between the side guard plates (2). The support plate (33) is T-shaped. The two sides of the longer section of the support plate (33) are bent inward and downward. There is a distance of 4-5 cm between the longer sections of adjacent support plates (33).

Images