Coal mine tunnel supporting anchor net fixing device

Abstract

The utility model discloses a coal mine roadway supporting anchor net fixing device, and belongs to the technical field of coal mine protection. The coal mine roadway supporting anchor net fixing device comprises a first buffering assembly used for buffering an anchor net, the first buffering assembly comprises a mounting block, the mounting block is inserted into the anchor net and mounted on the inner side wall of a mine hole through a mounting assembly, a moving rod is slidably inserted into the bottom of the mounting block, and a cavity is formed in the mounting block; the movable rod is sleeved with a first spring, a fixing plate is inserted into the mounting block, the end, arranged in the mounting block, of the movable rod is connected to the fixing plate through a first telescopic rod, the first spring and one end of the movable rod are fixedly connected with the fixing plate, and the anchor net is mounted through the mounting block and the mounting assembly; and when broken stones fall into the mine hole to vibrate the anchor net, generated vibration force can be buffered through the arranged moving rods, first springs and first telescopic rods, and the stability of the anchor net is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine protection, in particular to a coal mine tunnel support anchor net fixing device. Background Art

[0002] Anchor net technology refers to cross-connecting multiple metal wires on an anchor rod so that the multiple metal wires form a grid after crossing, and then fit onto the surface of the medium that needs protection to block the particles in the medium itself, thereby reducing the damage caused by falling particles to people below.

[0003] In the prior art, the anchor net is directly installed on the inner wall of the mine tunnel by anchor rods. During long-term use and observation, it was found that when the support anchor net is installed on the side wall of the coal mine tunnel, due to the large number of fallen rocks in the mine tunnel, the anchor net is easily tilted when it falls on the anchor net. In severe cases, the anchor net may be completely detached from the coal mine side wall, causing a bigger accident. Utility Model Content

[0004] The purpose of the utility model is to overcome the problems in the prior art. The anchor net is installed by means of a mounting block and a mounting assembly. When gravel falls in the mine and causes the anchor net to vibrate, the vibration force generated can be buffered by the arranged moving rod, the first spring and the first telescopic rod, thereby increasing the stability of the anchor net and providing a coal mine tunnel support anchor net fixing device.

[0005] The utility model provides a coal mine tunnel support anchor net fixing device, including a first buffer component for buffering the anchor net, the first buffer component includes a mounting block, the mounting block is inserted on the anchor net, the mounting block is installed on the inner wall of the mine cave through the mounting component, a moving rod is slidably inserted at the bottom of the mounting block, a cavity is provided in the mounting block, a first spring is sleeved on the moving rod, a fixing plate is horizontally inserted in the mounting block, one end of the moving rod is placed inside the mounting block and is connected to the fixing plate through a first telescopic rod, the first spring and the first spring and one end of the moving rod are all fixedly connected to the fixing plate, and the moving rod is placed on the outer side of the mounting block and is connected to the anchor net.

[0006] Preferably, a second buffer assembly is provided on the fixed plate, and the second buffer assembly includes a hinged rod, a slider, a second spring, and a second telescopic rod. The hinged rod is arranged in a pair, and the pair of hinged rods are respectively hinged at opposite sides of the movable rod, and the pair of hinged rods are hinged with a slider at one end away from the movable rod. The slider is slidably embedded in the fixed plate and slides along the fixed plate. One end of the second telescopic rod is fixedly connected to the slider, and the other end is fixedly connected to the fixed plate. The second spring is sleeved on the second telescopic rod.

[0007] Preferably, the bottom end of the movable rod is fixedly connected to a connecting plate, and the connecting plate is installed on the anchor net through a connecting assembly, and the connecting assembly includes a buckle plate and a mounting screw, the movable rod and the first spring are connected to the connecting plate, and the mounting screw is threadedly installed on the bottom of the connecting plate, the buckle plate is fixedly sleeved on the mounting screw, and a rotating block is provided at the bottom of the mounting screw.

[0008] Preferably, the mounting assembly includes an anchor rod, a connecting screw and a support plate, the anchor rod group is inserted into the inner wall of the ore body, the anchor rod is installed at the bottom of the support plate, the connecting screw is fixedly connected to the support plate, and the mounting block is provided with a mounting hole matching the connecting screw.

[0009] Preferably, a plurality of through holes are formed on the anchor rod, a grouting port is formed on the support plate, and a channel is formed in the anchor rod, wherein the channel connects the grouting port with the through holes.

[0010] Preferably, a connecting tube is provided on the threaded buckle of the grouting port, and a pressing airbag is provided on the tail of the connecting tube.

[0011] Preferably, a plug is threadedly embedded on the grouting port.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the anchor net is installed by means of the mounting block and the mounting assembly, and when gravel falls in the mine and causes the anchor net to vibrate, the vibration force generated can be buffered by the arranged moving rod, the first spring and the first telescopic rod, thereby increasing the stability of the anchor net; when gravel in the mine falls onto the anchor net, the anchor net will be vibrated, because the mounting block connects the anchor net to it at one place through the connecting assembly, when the anchor net vibrates, the arranged connecting plate will be pulled, because the moving rod and the first spring are both connected to the anchor net through the connecting assembly, the vibration force generated by the anchor net will be transmitted to the moving rod, and the connecting plate will pull the arranged first telescopic rod and the first spring, thereby offsetting the vibration force generated by the anchor net, thereby reducing the vibration force on the anchor rod in the mounting assembly, increasing the stability of the anchor rod, and further increasing the stability of the installed anchor net. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the second buffer component of the utility model;

[0015] Figure 3 This is a schematic diagram of the installation assembly structure of the utility model;

[0016] Figure 4 This is a schematic diagram of the mounting hole structure of the utility model;

[0017] Figure 5 This is a schematic diagram of the channel structure provided inside the anchor rod of the utility model.

[0018] Explanation of the reference numerals: 1. anchor net; 2. first buffer assembly; 21. mounting block; 22. movable rod; 23. fixing plate; 24. first spring; 25. first telescopic rod; 3. second buffer assembly; 31. hinged rod; 32. slider; 33. second spring; 34. second telescopic rod; 4. connecting plate; 5. connecting assembly; 51. buckle plate; 52. mounting screw; 53. rotating block; 6. mounting assembly; 61. anchor rod; 62. connecting screw; 63. support plate; 7. mounting hole; 8. grouting port; 9. through hole; 10. passage; 11. connecting pipe; 12. pressing airbag. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1-5 In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of 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. Unless otherwise defined, the technical terms or scientific terms used herein should be the usual meanings understood by people with general skills in the field to which the utility model belongs.

[0020] The words "first", "second" and similar words used in the specification and claims of the utility model patent application do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, but do not exclude other elements or objects. "Inside", "outside", "upper", "lower", "far", "near", "front", "back" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. The drawings in this disclosure are not drawn strictly according to the actual scale. The specific size and quantity of each structure can be determined according to actual needs. The drawings described in this disclosure are only schematic diagrams of the structure.

[0021] The utility model provides a coal mine tunnel support anchor net 1 fixing device, such as Figure 1-3As shown, it includes a first buffer component 2 for buffering the anchor net 1, and the first buffer component 2 includes a mounting block 21, the mounting block 21 is inserted on the anchor net 1, and the mounting block 21 is installed on the inner wall of the mine through the mounting component 6. A moving rod 22 is slidably inserted at the bottom of the mounting block 21, and a cavity is provided in the mounting block 21. A first spring 24 is sleeved on the moving rod 22, and a fixed plate 23 is horizontally inserted in the mounting block 21. The moving rod 22 is placed inside the mounting block 21 and one end is connected to the fixed plate 23 through a first telescopic rod 25. The first spring 24 and one end of the first spring 24 and the moving rod 22 are fixedly connected to the fixed plate 23, and the moving rod 22 is placed on the outer side of the mounting block 21 and is connected to the anchor net 1.

[0022] The anchor net 1 is installed by the mounting block 21 and the mounting assembly 6. When gravel falls in the mine and causes the anchor net 1 to vibrate, the movable rod 22, the first spring 24 and the first telescopic rod 25 can buffer the vibration force generated, thereby increasing the stability of the anchor net 1. When the gravel in the mine falls onto the anchor net 1, the anchor net 1 will vibrate. Since the mounting block 21 connects the anchor net 1 to it through the connecting assembly 5, when the anchor net 1 vibrates, the connecting plate 4 is pulled. Since the movable rod 22 and the first spring 24 are connected to the anchor net 1 through the connecting assembly 5, the vibration force generated by the anchor net 1 will be transmitted to the movable rod 22. At this time, the connecting plate will pull the first telescopic rod 25 and the first spring 24, thereby offsetting the vibration force generated by the anchor net 1, thereby reducing the vibration force on the anchor rod 61 in the mounting assembly 6, increasing the stability of the anchor rod 61, and further increasing the stability of the installed anchor net 1.

[0023] Preferably, Figure 1-3 As shown, a second buffer assembly 3 is provided on the fixed plate 23, and the second buffer assembly 3 includes a hinged rod 31, a slider 32, a second spring 33, and a second telescopic rod 34. The hinged rod 31 is arranged as a pair, and the pair of hinged rods 31 are respectively hinged at opposite sides of the moving rod 22, and the pair of hinged rods 31 are hinged with a slider 32 at one end away from the moving rod 22. The slider 32 is slidably embedded in the fixed plate 23 and slides along the fixed plate 23. One end of the second telescopic rod 34 is fixedly connected to the slider 32, and the other end is fixedly connected to the fixed plate 23. The second spring 33 is sleeved on the second telescopic rod 34.

[0024] When gravel falls in the mine and causes the anchor net 1 to vibrate, when the first buffer assembly 2 is buffered, when the moving rod 22 is forced to move downward, the slider 32 set by the pair of hinged rods 31 will be pulled, and because the slider 32 is fixedly connected to the second telescopic rod 34 and the second spring 33, as the moving rod 22 moves, the slider 32 will slide on the fixed plate 23 and stretch the second spring 33, thereby further offsetting the vibration force exerted on the anchor net 1, making the anchor rod 61 and the anchor net 1 more stable.

[0025] Preferably, Figure 1-3 As shown, the bottom of the movable rod 22 is fixedly connected to a connecting plate 4, and the bottom of the connecting plate 4 is installed on the anchor net 1 through a connecting assembly 5. The connecting assembly 5 includes a buckle plate 51 and a mounting screw 52. The movable rod 22 and the first spring 24 are connected to the connecting plate 4, and the mounting screw 52 is threadedly installed on the bottom of the connecting plate 4. The buckle plate 51 is fixedly sleeved on the mounting screw 52, ​​and a rotating block 53 is provided at the bottom of the mounting screw 52.

[0026] When installing the anchor net 1, first install the installation component 6 on the side wall of the mine, and then install the installation block 21 on the installation component 6. At this time, install the anchor net 1. First, rotate the set installation bolt to insert it into the connecting plate. Because a buckle plate 51 is fixedly sleeved on the installation screw 52, ​​as the installation screw 52 is inserted into the buckle plate 51, the anchor net 1 will be clamped between the buckle plate 51 and the connecting plate.

[0027] Preferably, Figure 1-5 As shown, the installation assembly 6 includes an anchor rod 61, a connecting screw rod 62 and a support plate 63. The anchor rod 61 group is inserted into the inner wall of the ore body, the anchor rod 61 is installed at the bottom of the support plate 63, the connecting screw rod 62 is fixedly connected to the support plate 63, the mounting block 21 is provided with a mounting hole 7 matching the connecting screw rod 62, the anchor rod 61 is provided with a plurality of through holes 9, the support plate 63 is provided with a grouting port 8, a channel 10 is provided in the anchor rod 61, the channel 10 connects the grouting port 8 with the through hole 9, a connecting pipe 11 is threadedly provided on the grouting port 8, a pressing airbag 12 is sleeved at the tail of the connecting pipe 11, and a plug is threadedly embedded on the grouting port 8.

[0028] First, a hole where the anchor rod 61 needs to be inserted is drilled by a drilling rig. After the anchor rod 61 is inserted into the opened hole, the fixing slurry flows through the channel 10 through the grouting port 8 to the through hole 9 on the anchor rod 61 and flows out, thereby limiting the anchor rod 61 in the opened hole. The construction personnel can press the pressing airbag 12 to press the fixing slurry out of the through hole 9.

[0029] The method of using the fixing device of the utility model for supporting anchor net 1 in coal mine tunnel is as follows:

[0030] First, a hole where the anchor rod 61 needs to be inserted is drilled by a drilling machine. After the anchor rod 61 is inserted into the opened hole, the fixing slurry flows through the channel 10 through the grouting port 8 to the through hole 9 on the anchor rod 61 and flows out, thereby limiting the anchor rod 61 in the opened hole. The construction personnel can press the pressing airbag 12 to press the fixing slurry out of the through hole 9, insert the connecting screw 62 into the mounting hole 7 opened on the mounting block 21, and connect the mounting block 21 with the mounting assembly 6;

[0031] The mounting bolts are rotated to be inserted into the connecting plate. Since a buckle plate 51 is fixedly sleeved on the mounting screw 52, ​​the buckle plate 51 will clamp the anchor net 1 between the buckle plate 51 and the connecting plate as the mounting screw 52 is inserted.

[0032] When the anchor net 1 vibrates, the connecting plate 22 will be pulled. Since the moving rod 22 and the first spring 24 are connected to the anchor net 1 through the connecting assembly 5, the vibration force generated by the anchor net 1 will be transmitted to the moving rod 22. At this time, the connecting plate will pull the first telescopic rod 25 and the first spring 24, thereby offsetting the vibration force generated by the anchor net 1, thereby reducing the vibration force on the anchor rod 61 in the installation assembly 6, increasing the stability of the anchor rod 61, and further increasing the stability of the installed anchor net 1. When gravel falls in the mine and causes the anchor net 1 to vibrate, when the moving rod 22 is forced to move downward by the buffering of the first buffer assembly 2, it will pull the slider 32 set by a pair of hinged rods 31, and since the slider 32 is fixedly connected with the second telescopic rod 34 and the second spring 33, as the moving rod 22 moves, the slider 32 will slide on the fixed plate 23 and stretch the second spring 33, thereby further offsetting the vibration force on the anchor net 1, making the anchor rod 61 and the anchor net 1 more stable.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coal mine tunnel support anchor net fixing device, characterized in that: It comprises a first buffer component (2) for buffering the anchor net (1), wherein the first buffer component (2) comprises: A mounting block (21) is inserted into the anchor net (1), and the mounting block (21) is mounted on the inner wall of the mine cave through a mounting assembly (6); A moving rod (22) is slidably inserted at the bottom of the mounting block (21), a cavity is provided in the mounting block (21), and a first spring (24) is sleeved on the moving rod (22); A fixing plate (23) is inserted into the mounting block (21); one end of the moving rod (22) is placed inside the mounting block (21) and is connected to the fixing plate (23) via a first telescopic rod (25); the first spring (24) and one end of the moving rod (22) are fixedly connected to the fixing plate (23); and one end of the moving rod (22) is placed outside the mounting block (21) and is connected to the anchor net (1).

2. A coal mine tunnel support anchor net fixing device as claimed in claim 1, characterized in that: The fixed plate (23) is provided with a second buffer assembly (3), the second buffer assembly (3) comprises a hinged rod (31), a slider (32), a second spring (33), and a second telescopic rod (34). The hinged rod (31) is arranged in a pair, and the pair of hinged rods (31) are respectively hinged to the opposite sides of the moving rod (22), and the ends of the pair of hinged rods (31) away from the moving rod (22) are hinged to the slider (32), and the slider (32) is slidably embedded in the fixed plate (23) and slides along the fixed plate (23). One end of the second telescopic rod (34) is fixedly connected to the slider (32), and the other end is fixedly connected to the fixed plate (23). The second spring (33) is sleeved on the second telescopic rod (34).

3. A coal mine tunnel support anchor net fixing device as claimed in claim 1, characterized in that: The bottom of the movable rod (22) is fixedly connected to a connecting plate (4), and the bottom of the connecting plate (4) is installed on the anchor net (1) through a connecting assembly (5). The connecting assembly (5) includes a buckle plate (51) and a mounting screw (52). The movable rod (22) and the first spring (24) are connected to the connecting plate (4), and the mounting screw (52) is threadedly installed on the bottom of the connecting plate (4). The buckle plate (51) is fixedly sleeved on the mounting screw (52), and a rotating block (53) is provided at the bottom of the mounting screw (52).

4. A coal mine tunnel support anchor net fixing device as claimed in claim 1, characterized in that: The mounting assembly (6) comprises an anchor rod (61), a connecting screw rod (62) and a support plate (63); the anchor rod (61) is inserted into the inner wall of the ore body; the anchor rod (61) is mounted on the bottom of the support plate (63); the connecting screw rod (62) is fixedly connected to the support plate (63); and the mounting block (21) is provided with a mounting hole (7) matching the connecting screw rod (62).

5. A coal mine tunnel support anchor net fixing device as claimed in claim 4, characterized in that: The anchor rod (61) is provided with a plurality of through holes (9), the support plate (63) is provided with a grouting port (8), and a channel (10) is provided inside the anchor rod (61), and the channel (10) connects the grouting port (8) with the through holes (9).

6. A coal mine tunnel support anchor net fixing device as claimed in claim 5, characterized in that: A connecting pipe (11) is threadedly provided on the grouting port (8), and a pressing air bag (12) is sleeved on the tail of the connecting pipe (11).

7. A coal mine tunnel support anchor net fixing device as claimed in claim 5, characterized in that: A plug body is threadably embedded on the grouting port (8).

Images