Underground goaf protection facility

Abstract

The utility model discloses an underground goaf protection facility which comprises supporting rods and a flexible metal net. The device has the beneficial effects that a worker can put the supporting rod into the inner side of an underground goaf hole, the screw rod is driven by rotating the handle to move out of the sleeve to extend until sharp claws at the two ends of the side base abut against a rock layer on the inner wall of the underground goaf hole, at the moment, the side base does not rotate, the handle can be rotated, and the handle drives the sleeve to rotate; when the screw rod is moved out, the sleeve and the inserting rod are pushed to continuously enter the inserting cylinder, the strong spring is compressed to generate elastic force, the sharp claw is pushed to clamp the inner wall of the hole position of the underground goaf, the elastic force of the strong spring is larger and larger along with continuous rotation of the handle, and the side base is fixed more stably and reliably; the flexible metal net is bound and fixed to the supporting rods through the binding wires to complete protection, expansion bolts do not need to be installed, installation and disassembly are very convenient, and use convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of protective equipment, in particular to an underground goaf protection facility. Background Art

[0002] At present, the mining of thick and large ore bodies in metal mines usually adopts the stage chamber mining method, which divides the ore deposit into two middle sections according to the elevation. Each middle section of the ore block is divided into a chamber and pillars, and the mining is carried out in two stages. In the first stage, the chamber is mined by the large-diameter vertical deep hole stage chamber method. After the chamber is mined, a goaf is formed, leaving the horizontal pillars and vertical pillars between the two middle sections to jointly support the surrounding rock. In the second stage, the pillars are mined by the filling method or the collapse method. The mining cycle of a single chamber of iron ore is about 3 months. During the chamber mining process, safety protection needs to be set up at the edge of the goaf to prevent personnel and equipment from accidentally entering and falling from heights.

[0003] After searching, it was found that at present there is a method of using wire rope as the skeleton and the safety protection fence body as the protection body. The wire rope needs to be connected with the basket screws during installation, and the basket screws need to be fixed to the inner wall of the tunnel through expansion screws. During installation, staff are required to install expansion bolts, which is more troublesome. At the same time, dismantling is also very troublesome. In addition, when the tunnel entrance is affected by the earthquake and expands outward, the wire rope is easily pulled and broken, and the stability is affected. Further improvements can be made. Utility Model Content

[0004] (1) Technical problems solved

[0005] In view of the deficiencies in the prior art, the present invention provides an underground goaf protection facility, which has the advantages of being more convenient to use and more stable, thereby solving the problems in the above-mentioned background technology.

[0006] (2) Technical solution

[0007] In order to achieve the above-mentioned advantages of greater convenience of use and higher stability, the specific technical solution adopted by the utility model is as follows: an underground goaf protection facility, including a support rod and a flexible metal mesh, the support rod includes an insert tube and a sleeve, and the insert tube is plugged with an insert rod, and the other end of the insert rod is rotatably connected to the sleeve through a rotating connecting seat, the other end of the sleeve is threaded with a screw, and the other end of the screw and one end of the insert tube are fixedly installed with a side seat, and a sharp claw is welded on the surface of the other end of the side seat, a slot is provided inside the insert tube, the insert rod is inserted into the slot, and one end of the insert rod is connected to the inner wall of one end of the slot by a strong spring, and the flexible metal mesh is tied to the support rod by a wire tie.

[0008] Furthermore, an internal thread connected to the screw thread is provided on the inner wall of the sleeve, and a handle is fixedly connected to the outer wall of the other end of the sleeve.

[0009] Furthermore, the support rods are arranged in multiple groups from top to bottom.

[0010] Furthermore, the insert cylinder, insert rod, sleeve, screw and side seat are coaxially arranged.

[0011] Furthermore, the slot is a rectangular slot, and the insertion rod is a rectangular rod.

[0012] Furthermore, both ends of the strong spring are fixedly connected to the insertion rod and the slot respectively.

[0013] Furthermore, the sharp claws are densely distributed in multiple groups with equal intervals.

[0014] (3) Beneficial effects

[0015] Compared with the existing technology, the utility model provides an underground goaf protection facility with the following beneficial effects:

[0016] (1) The utility model is provided with a support rod, which is arranged at the position of the hole opening of the underground goaf. The staff can put the support rod into the inner side of the hole opening of the underground goaf, and drive the screw to move out of the sleeve by turning the handle screw to extend it until the sharp claws at both ends of the side seat are tightly pressed against the rock layer on the inner wall of the hole opening of the underground goaf. At this time, the side seat does not rotate, and the handle can be turned. The handle drives the sleeve to rotate and the screw continues to move out. When the screw moves out, the sleeve and the plug rod are pushed into the plug tube continuously. The strong spring is compressed to generate elastic force, which pushes the sharp claws to lock the inner wall of the hole opening of the underground goaf. As the handle continues to rotate, the elastic force of the strong spring becomes larger and larger, and the fixation of the side seat is more stable and reliable. The support frame is arranged in multiple groups from top to bottom. The flexible metal mesh is fixed to the support rod by tying wire to complete the protection. The device does not need to install expansion bolts. It is very convenient to install and disassemble, which improves the convenience of use.

[0017] (2) The utility model is provided with a strong spring and a flexible metal mesh. The strong spring is in a compressed state after the support rod is installed. When the position of the underground goaf hole is affected by an earthquake and expands or contracts, the strong spring can ensure the stable installation of the side seat through its own elastic force. The flexible metal mesh can also avoid damage caused by the deformation of the position of the underground goaf hole through its own flexible deformation, thereby improving the stability of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a front view of an underground goaf protection facility according to an embodiment of the utility model;

[0020] Figure 2 Schematic diagram of the external structure of the support rod according to an embodiment of the present utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the support rod according to an embodiment of the present utility model;

[0022] Figure 4 It is an enlarged view of node A of the support rod according to an embodiment of the present utility model.

[0023] In the picture:

[0024] 1. Insertion tube; 2. Insertion rod; 3. Sleeve; 4. Rotating connection seat; 5. Handle; 6. Screw; 7. Slot; 8. Strong spring; 9. Side seat; 10. Sharp claw; 11. Flexible metal mesh; 12. Tie wire; 13. Support rod. DETAILED DESCRIPTION

[0025] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. By referring to these contents, ordinary technicians in this field should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0026] According to an embodiment of the utility model, an underground goaf protection facility is provided.

[0027] The present invention will now be further described with reference to the accompanying drawings and specific embodiments. Figure 1-4As shown, according to an embodiment of the present invention, a goaf protection facility is provided in an underground mine, comprising a support rod 13 and a flexible metal mesh 11. The support rod 13 comprises an insert tube 1 and a sleeve 3, and an insert rod 2 is inserted into the insert tube 1, and the other end of the insert rod 2 is rotatably connected to the sleeve 3 through a rotating connection seat 4. The rotating connection seat 4 prevents the insert rod 2 from rotating with the sleeve 3. The other end of the sleeve 3 is threadedly inserted with a screw 6, and the other end of the screw 6 and one end of the insert tube 1 are fixedly mounted with a side seat 9, and the other end surface of the side seat 9 is welded with a sharp claw 10. 10 The other end is a pointed tip, which is convenient for piercing into the rock formation. A slot 7 is opened inside the insert tube 1, and the insert rod 2 is inserted into the slot 7, and one end of the insert rod 2 is connected to the inner wall of one end of the slot 7 through a strong spring 8. The flexible metal mesh 11 is tied and connected with the support rod 13 by a wire 12. It is a common fixing method. The support rod 13 is arranged at the position of the hole of the underground goaf. The staff can put the support rod 13 into the inner side of the hole position of the underground goaf, and drive the screw 6 to move out of the sleeve 3 by turning the handle 5 screw 6 to extend until the sharp claws 1 at both ends of the side seat 9 After 0 is pressed against the rock layer on the inner wall of the hole of the goaf, at this time, the side seat 9 does not rotate, and the handle 5 can be turned, and the handle 5 drives the sleeve 3 to rotate, and the screw 6 continues to move out. When the screw 6 moves out, the sleeve 3 and the insertion rod 2 are pushed into the insertion tube 1, and the strong spring 8 is compressed to generate elastic force, which pushes the sharp claw 10 to jam the inner wall of the hole of the goaf. As the handle 5 continues to rotate, the elastic force of the strong spring 8 becomes larger and larger, and the fixation of the side seat 9 becomes more stable and reliable. The support frame is arranged in multiple groups from top to bottom, and the flexible metal mesh 11 is tied The protection can be completed by tying and fixing the wire 12 to the support rod 13. This device does not require the installation of expansion bolts, and is very convenient to install and disassemble, which improves the convenience of use. At the same time, the strong spring 8 is in a compressed state after the support rod 13 is installed. When the position of the hole in the underground goaf is expanded or contracted due to the earthquake, the strong spring 8 can also ensure the stable installation of the side seat 9 through its own elastic force. The flexible metal mesh 11 avoids damage caused by deformation of the hole position in the underground goaf through its own flexible deformation, thereby improving the stability of the structure.

[0028] In one embodiment, an inner wall of the sleeve 3 is provided with an internal thread that is threadably connected to the screw 6 , and a handle 5 is fixedly connected to the outer wall of the other end of the sleeve 3 , and the handle 5 facilitates the rotation of the sleeve 3 .

[0029] In one embodiment, the support rods 13 are arranged in multiple groups from top to bottom, and the vertical spacing between the support rods 13 is no more than 1 m.

[0030] In one embodiment, the inserting tube 1 , the inserting rod 2 , the sleeve 3 , the screw 6 and the side seat 9 are coaxially arranged to facilitate the rotation of the screw 6 and the sleeve 3 .

[0031] In one embodiment, the slot 7 is a rectangular slot and the insertion rod 2 is a rectangular rod, so as to prevent the insertion rod 2 from rotating and affecting the operation of the strong spring 8.

[0032] In one embodiment, both ends of the strong spring 8 are fixedly connected to the insertion rod 2 and the slot 7 respectively to prevent the insertion rod 2 from being separated from the insertion tube 1.

[0033] In one embodiment, the sharp claws 10 are densely distributed in multiple groups at equal intervals to improve the stability of the fixed installation.

[0034] Working principle: The support rod 13 is arranged at the hole position of the underground goaf. The staff can put the support rod 13 into the inner side of the hole position of the underground goaf, and drive the screw 6 to move out of the sleeve 3 to extend by turning the handle 5 screw 6 until the sharp claws 10 at both ends of the side seat 9 are tightly pressed against the rock layer on the inner wall of the hole position of the underground goaf. At this time, the side seat 9 does not rotate, and the handle 5 can be turned. The handle 5 drives the sleeve 3 to rotate, and the screw 6 continues to move out. When the screw 6 moves out, the sleeve 3 and the insertion rod 2 are pushed continuously into the insertion tube 1, and the strong spring 8 is compressed to generate elastic force, which pushes the sharp claws 10 to jam the inner wall of the hole position of the underground goaf. As the handle 5 continues to rotate, the strong spring 8 The elastic force is getting bigger and bigger, and the fixation of the side seat 9 is more stable and reliable. Multiple groups of support frames are arranged from top to bottom. The flexible metal mesh 11 is fixed to the support rod 13 by tying wire 12 to complete the protection. This device does not need to install expansion bolts, and is very convenient to install and disassemble, which improves the convenience of use. At the same time, the strong spring 8 is in a compressed state after the support rod 13 is installed. When the position of the hole in the underground goaf is affected by the earthquake and expands outward or shrinks inward, the strong spring 8 can also ensure the stable installation of the side seat 9 through its own elastic force. The flexible metal mesh 11 avoids the damage caused by the deformation of the hole position in the underground goaf through its own flexible deformation, thereby improving the stability of the structure.

[0035] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An underground goaf protection facility, comprising a support rod (13) and a flexible metal mesh (11), characterized in that: The support rod (13) includes an insert tube (1) and a sleeve (3), and an insert rod (2) is inserted into the insert tube (1), and the other end of the insert rod (2) is rotatably connected to the sleeve (3) through a rotating connecting seat (4), the other end of the sleeve (3) is threadedly inserted with a screw rod (6), and the other end of the screw rod (6) and one end of the insert tube (1) are fixedly mounted with a side seat (9), and a sharp claw (10) is welded on the surface of the other end of the side seat (9), a slot (7) is provided inside the insert tube (1), the insert rod (2) is inserted into the slot (7), and one end of the insert rod (2) is connected to the inner wall of one end of the slot (7) through a strong spring (8), and the flexible metal mesh (11) is tied and connected to the support rod (13) through a binding wire (12).

2. The underground goaf protection facility according to claim 1, characterized in that: The inner wall of the sleeve (3) is provided with an internal thread that is threadably connected to the screw rod (6), and the outer wall of the other end of the sleeve (3) is fixedly connected to a handle (5).

3. The underground goaf protection facility according to claim 1, characterized in that: The support rods (13) are arranged in multiple groups from top to bottom.

4. The underground goaf protection facility according to claim 1, characterized in that: The insert cylinder (1), the insert rod (2), the sleeve (3), the screw rod (6) and the side seat (9) are coaxially arranged.

5. The underground goaf protection facility according to claim 1, characterized in that: The slot (7) is a rectangular slot, and the insertion rod (2) is a rectangular rod.

6. The underground goaf protection facility according to claim 1, characterized in that: The two ends of the strong spring (8) are fixedly connected to the insertion rod (2) and the slot (7) respectively.

7. The underground goaf protection facility according to claim 1, characterized in that: The sharp claws (10) are densely distributed in multiple groups at equal intervals.

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