A protective shed for underground safety prevention and its usage method

Abstract

The present invention belongs to the technical field of mine protection equipment, and particularly relates to a shielding shed for underground safety prevention and its use method. The shielding shed includes: mounting rods whose two ends can be respectively connected to the top and bottom of the mine roadway; a shed body which is connected to the mounting rods and has at least one deployable stress-bearing surface that can withstand a certain impact; wherein, the stress-bearing surface is perpendicular to the axis of the mounting rod. Compared with the prior art, the present invention buffers the sand, gravel and stones that collapse and fall by arranging the shielding shed in the mine roadway to protect the personal safety of workers.

Description

Technical Field

[0001] The present invention belongs to the technical field of mine protection equipment, and particularly relates to a shielding shed for underground safety prevention and its usage method. Background Art

[0002] During mining operations, workers need to work underground for a long time. It is very difficult to ensure the absolute stability of the structure of the mine or the mine roadway. There are often situations where the mine or the mine roadway collapses and crushes the workers underneath. For some vertical shafts or inclined shafts, due to the certain height difference between the wellhead and the passage, and most of the well walls are unprocessed, and workers often need to stay and work directly below the passage. Some crushed stones or sand will fall along the well wall or vertically under the action of gravity, often injuring the workers and threatening the personal safety of the workers. Summary of the Invention

[0003] The purpose of the present invention is to provide a shielding shed for underground safety prevention and its usage method for the above-mentioned existing technical problems, achieving the effect of buffering the sand and stones falling due to collapse and protecting the personal safety of workers.

[0004] In view of this, the present invention provides a shielding shed for underground safety prevention, including:

[0005] Installation rods, the two ends of which can be respectively connected to the top and the bottom of the mine roadway;

[0006] A shed body, which is connected to the installation rods and has at least one deployable stress surface that can withstand a certain impact;

[0007] Wherein, the stress surface is perpendicular to the axis of the installation rod.

[0008] In this technical solution, a shielding shed is installed at a certain interval in the mine roadway, so that multiple shielding sheds are installed in one mine roadway. When each shielding shed is installed, the bottom end of the installation rod is fixed on the bottom surface of the mine roadway or inserted into the bottom surface of the mine roadway, and the top end of the installation rod is closely attached to the top surface of the mine roadway. In this way, the installation rod can provide a supporting effect on the inner wall of the mine roadway. After installation, the shed body is located on the outer wall of the installation rod at a position higher than the normal height of the workers. In this way, when workers work underground, they can work under the shed body to avoid the stones directly hitting the workers when the mine roadway collapses. If the workers are not under the shed body during the operation and notice something abnormal in the mine roadway but cannot quickly escape from the mine roadway, they can run to the nearest shed body to take shelter and reduce the damage to themselves.

[0009] In the above technical solution, further, a plurality of hollow slots penetrating the upper and lower surfaces of the shed body are provided on the shed body.

[0010] In this technical solution, when the mine tunnel collapses, in addition to stones, sand and gravel also fall from above. For the fine sand and gravel, due to their light weight, they are likely to accumulate on the shed body. After the hollow slots are provided, the fine sand and gravel can pass through the hollow slots and fall onto the bottom surface of the mine tunnel, avoiding the accumulation of sand and gravel on the shed body; for the large stones, they will be blocked by the stress surface of the shed body and fall to a position far from the shelter shed.

[0011] In the above technical solution, further, an installation sleeve is provided on the shed body, and the shed body is connected to the installation rod through the installation sleeve.

[0012] In this technical solution, the shed body is sleeved on the installation rod through the installation sleeve, which is conducive to the installation and disassembly of the shed body.

[0013] In the above technical solution, further, the shed body includes multiple main rod bodies. The multiple main rod bodies are located on the same horizontal plane. The multiple main rod bodies support the stress surface simultaneously, and one end of the multiple main rod bodies is connected to the outer wall of the installation sleeve.

[0014] Further, the shed body further includes multiple auxiliary rod bodies for supporting the main rod bodies. The first ends of the multiple auxiliary rod bodies are connected to the outer wall of the installation sleeve, and the second ends of the multiple auxiliary rod bodies are connected to the side walls of the main rod bodies.

[0015] In this technical solution, the multiple main rod bodies are connected to form the framework of the shed body, which is used to directly support the stress surface of the shed body. The multiple auxiliary rod bodies are arranged below the main rod bodies and support the main rod bodies in an inclined form, so as to realize the auxiliary support for the stress surface of the shed body. The main rod bodies and the auxiliary rod bodies are respectively connected to the upper and lower parts of the outer wall of the installation sleeve.

[0016] In the above technical solution, further, the installation rod includes:

[0017] An inner rod, which includes an upper section and a lower section;

[0018] An installation bottom pipe, which is detachably sleeved on the outer wall of the lower section. Its bottom is provided with an installation part that can be inserted into the bottom surface of the mine tunnel, and its position in the axial direction of the inner rod can be adjusted;

[0019] A fixed sleeve, which is detachably sleeved on the outer wall of the upper section;

[0020] Wherein, the installation sleeve is sleeved on the outer wall of the upper section, and the fixed sleeve can limit the movement of the installation sleeve along the axial direction of the inner rod.

[0021] In this technical solution, the installation rod is formed by multi-segment splicing, which is beneficial to the transportation and carrying of the installation rod and also beneficial to the production and manufacturing of the installation rod. When assembling the installation rod, the installation bottom pipe is sleeved into the lower end of the inner rod from the lower end of the inner rod, and the fixed sleeve is sleeved into the upper end of the inner rod from the upper end of the inner rod. The installation bottom pipe is used to vertically fix the inner rod on the bottom surface of the mine roadway, and the fixed sleeve is used to limit the height of the installation sleeve and thus limit the height of the shed body. The number of fixed sleeves can be increased or decreased according to the actual situation. The installation bottom pipe and the inner rod can be relatively fixed, and the fixed sleeve and the inner rod can be relatively fixed. At the same time, the installation bottom pipe can also be appropriately adjusted in position along the axial direction of the inner rod, so as to facilitate the installation of the installation rod in the mine roadway.

[0022] In the above technical solution, further, the inner wall of the installation bottom pipe is provided with internal threads, the lower section of the inner rod is provided with external threads, and the installation bottom pipe is sleeved on the outer wall of the lower section of the inner rod through threaded connection.

[0023] In this technical solution, after the installation bottom pipe is sleeved into the lower section of the inner rod, the internal threads on the inner wall of the installation bottom pipe are matched with the external threads on the outer wall of the lower section of the inner rod, so that the installation bottom pipe moves closer to or away from the middle of the inner rod along the axial direction of the inner rod.

[0024] In the above technical solution, further, a buffer plate is provided on the inner wall of the installation sleeve. The buffer plate is connected to the installation sleeve through a threaded rod. A buffer groove is provided on the side wall of the buffer plate close to the inner wall of the installation sleeve. A threaded installation hole is provided on the bottom surface of the buffer groove. A threaded through hole penetrating the inner and outer surfaces is provided on the side wall of the installation sleeve. The threaded end of the threaded rod is threadedly engaged with the threaded through hole and then extends into the buffer groove to be threadedly connected with the threaded installation hole. A buffer spring is provided in the buffer groove, and both ends of the buffer spring are respectively connected to the inner wall of the installation sleeve and the bottom surface of the buffer groove.

[0025] In this technical solution, before installing the shed body and the installation rod, the buffer plate is fixed on the inner wall of the installation sleeve through a threaded rod first. During the process of screwing the threaded rod tightly into the threaded installation hole, the buffer spring is pressed by the inner wall of the installation sleeve and the outer wall of the buffer plate. After installing the buffer plate, the shed body is connected to the installation rod through the installation sleeve. When the shed body is connected to the installation rod, it is in direct contact with the inner rod through the buffer plate. In this way, when the shed body is impacted by stones, it will be buffered first by the buffer plate and the buffer spring, reducing the impact force transmitted to the installation rod and also reducing the impact force returned by the installation rod to the shed body, improving the impact resistance of the shed body.

[0026] In the above technical solution, further, the buffer plate is arc-shaped. At least two buffer plates are provided on both the upper and lower parts of the installation sleeve. One end of the buffer plate extends out of the installation sleeve and forms a limiting part at the end of the buffer plate. The end of the buffer plate at the lower part of the installation sleeve is connected to the fixed sleeve.

[0027] In this technical solution, the buffer plate is designed as an arc shape less than 180°. When installing, two to three buffer plates can be installed in the circumferential direction of the installation sleeve. There is a gap between each buffer plate in the circumferential direction of the installation sleeve. In this way, when being impacted, a deformable space can be provided for the buffer plate, thereby improving the buffering capacity of the buffer plate. Since both the upper and lower parts of the installation sleeve will be impacted and squeezed when the shed body is squeezed, buffer plates are provided on both the upper and lower parts of the installation sleeve to improve the buffering capacity between the shed body and the installation rod.

[0028] The present invention also discloses a usage method applicable to the aforementioned protective shed, and this usage method includes the following steps:

[0029] X1. Part preparation: Transport the installation parts including the shed body, inner rod, installation bottom pipe, fixed sleeve, buffer plate, buffer spring, and threaded rod into the mine tunnel.

[0030] X2. Erection: First, lay the inner rod flat on the bottom surface of the mine tunnel, sleeve the installation bottom pipe on the lower section of the inner rod near the upper section and fix it. Then, sleeve the fixed sleeve on the upper section of the inner rod and fix it to form an installation rod. Fix multiple buffer plates at the corresponding positions on the inner wall of the installation sleeve through threaded rods. Sleeve the shed body on the upper section of the inner rod through the installation sleeve and make the limiting part contact and connect with the fixed sleeve.

[0031] X3. Installation: Erect the erected installation rod so that the lower end of the installation bottom pipe is inserted into the bottom surface of the mine tunnel and fixed. Then, adjust the inner rod upward relative to the installation bottom pipe, so that the upper end of the inner rod approaches the top of the mine tunnel and is connected to the top of the mine tunnel to complete the erection.

[0032] In this technical solution, transporting the installation parts with smaller volume into the mine tunnel and then carrying out erection and installation is beneficial to selecting inner rods, installation bottom pipes, and fixed sleeves with appropriate lengths according to the actual height inside the mine tunnel, making the erection structure of the protective shed more stable, the installation more accurate, and the usage effect better.

[0033] The beneficial effects of the present invention are:

[0034] 1. By setting up a protective shed formed by the installation rod, shed body and the internal structure of the mine tunnel in the mine tunnel, when the mine tunnel collapses or stones fall, they can be blocked by the protective shed, thereby further improving the safety guarantee for workers during the operation process.

[0035] 2. By arranging a plurality of hollow slots on the shed body, the accumulation of fine sand or sandy soil on the shed body is reduced, and the long-term continuous force on the shed body is reduced.

[0036] 3. By setting buffer plates between the installation sleeve and the installation rod to improve the buffering capacity of the shed body, thereby improving the impact resistance of the protective shed and further ensuring the personal safety of workers. Description of the Drawings

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0038] Figure 1 It is a top-down perspective schematic diagram of the first structure of the present invention.

[0039] Figure 2 It is a bottom-up perspective schematic diagram of the first structure of the present invention.

[0040] Figure 3 It is a schematic diagram of the installation state of the present invention.

[0041] Figure 4 It is a top-down perspective schematic diagram of the second structure of the present invention.

[0042] Figure 5 It is a bottom-up perspective schematic diagram of the second structure of the present invention.

[0043] Figure 6 It is a schematic diagram of the connection structure between the buffer plate and the installation sleeve in the present invention.

[0044] Figure 7 For Figure 6 The partial enlarged schematic diagram at position A in

[0045] Figure 8 It is a schematic diagram of the buffer plate structure in the present invention.

[0046] Figure 9 It is a schematic diagram of the connection structure between the installation bottom tube and the inner rod in the present invention.

[0047] The markings in the figure are shown as:

[0048] 1 - installation rod, 101 - inner rod, 102 - installation bottom tube, 103 - fixed sleeve, 2 - shed body, 3 - installation sleeve, 4 - main rod body, 5 - sub - rod body, 6 - hollow groove, 7 - buffer plate, 8 - threaded rod, 9 - buffer groove, 10 - threaded installation hole, 11 - buffer spring, 12 - limiting part, 13 - threaded through - hole. Detailed implementation manners

[0049] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0050] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments of the present application. For the sake of description, the sizes of the various parts shown in the drawings are not drawn in actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0051] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects and are not used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of the same type and do not limit the number of objects. For example, the first object can be one or more. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / " generally indicates an "or" relationship between the associated objects before and after.

[0052] It should be noted that in the description of the present application, the orientation or positional relationships indicated by the orientation terms such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are generally based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Without contrary instructions, these orientation terms do not indicate and imply that the devices or elements referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus should not be construed as limiting the protection scope of the present application; the orientation terms "inside, outside" refer to the inside and outside relative to the outline of each component itself.

[0053] It should be noted that in this application, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or elements inherent to such a process, method, article or device. Without more limitations, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of this application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0054] Embodiment 1

[0055] As Figures 1-3 shown, the embodiment of this application provides a protective shed for underground safety prevention, including: a mounting rod 1, the two ends of which can be respectively connected to the top and bottom of the mine roadway; a shed body 2, which is connected to the mounting rod 1 and has at least one deployable stress-bearing surface that can withstand a certain impact; wherein, the stress-bearing surface is perpendicular to the axis of the mounting rod 1.

[0056] In this embodiment, both the mounting rod 1 and the shed body 2 are made of steel. The diameter of the mounting rod 1 is generally 8 - 12 cm, and the horizontal deployment length of the shed body 2 is about 1 - 1.5 m; an installation sleeve 3 is provided on the side wall of the shed body 2, and the inner diameter of the installation sleeve 3 is slightly larger than the diameter of the mounting rod 1, and the installation sleeve 3 can be sleeved on the mounting rod 1;

[0057] The deployable stress-bearing surface can be understood as that in a top-down view, the shed body 2 forms a plane in the horizontal direction in the installed state, and this plane can always be deployed or can be of an openable and closable type.

[0058] In this embodiment, taking the structure of the shed body 2 that is always deployed as an example, the shed body 2 includes a plurality of main rod bodies 4, a plurality of auxiliary rod bodies 5, and a stress-bearing surface. In this embodiment, the stress-bearing surface is a closed plane. The plurality of main rod bodies 4 can be further divided into branch rod bodies and connecting rod bodies. Please refer to Figure 2 , there are five branch rod bodies. The first ends of the five branch rod bodies are all welded to the outer wall of the installation sleeve 3. The second ends of the branch rod bodies extend away from the installation sleeve 3 to form a deployed posture. There are four connecting rod bodies. The two ends of the four connecting rod bodies are respectively connected to the second ends of two adjacent branch rod bodies. The five branch rod bodies and the four connecting rod bodies together form the basic framework of the shed body 2 on the same horizontal plane, and the stress-bearing surface is welded to the basic framework of the shed body 2;

[0059] On the upper side or the lower side of the stress-bearing surface, a plurality of auxiliary rod bodies 5 for auxiliary support are provided. The first end of the auxiliary rod body 5 is welded to the outer wall of the mounting sleeve 3, and the second end of the auxiliary rod body 5 is obliquely welded to the main rod body 4 or the stress-bearing surface. In this embodiment, taking the auxiliary rod body 5 being arranged on the lower side of the stress-bearing surface as an example, in this embodiment, there are five auxiliary rod bodies 5 in total. The first end of the main rod body 4 is welded to the upper part of the outer wall of the mounting sleeve 3, and the first end of each auxiliary rod body 5 is welded to the lower part of the outer wall of the mounting sleeve 3. The second end of each auxiliary rod body 5 is inclined upward and welded to the side wall of a main rod body 4, so as to realize the auxiliary support for the basic framework and the stress-bearing surface.

[0060] Please refer to Figure 3 , during installation, after fixing the shed body 2 to the mounting rod 1, connect and fix the lower end of the mounting rod 1 to the bottom surface of the mine roadway, and then connect and fix the upper end of the mounting rod 1 to the top surface of the mine roadway; the connection method between the lower end of the mounting rod 1 and the bottom surface of the mine roadway can be to set a pre-embedded part below the bottom surface of the mine roadway and fix the lower end of the mounting rod 1 to the pre-embedded part, or it can also be to directly insert the lower end of the mounting rod 1 downward; the connection method between the upper end of the mounting rod 1 and the top of the mine roadway can be to closely attach the mounting rod 1 to the top surface of the mine roadway, or holes or grooves can be opened on the top surface of the mine roadway for the mounting rod 1 to be inserted into.

[0061] Through the above technical solutions, multiple protective sheds are arranged in the mine roadway for workers to avoid emergencies, reducing the degree of loss of workers and ensuring the personal safety of workers to a certain extent.

[0062] Embodiment 2

[0063] This embodiment provides a protective shed for underground safety prevention, which is different from that in Embodiment 1 in the structure of the shed body 2.

[0064] In this embodiment, for the structure of the protective shed, please refer to Figure 4 and Figure 5 , a plurality of hollow slots 6 are opened on the stress-bearing surface of the shed body 2. The hollow slots 6 penetrate the upper and lower surfaces of the stress-bearing surface, and the caliber of the hollow slots 6 is relatively small, which can allow smaller particles of sand or sandy soil to pass through.

[0065] After the protective shed is installed in the mine roadway like this, even when smaller particles of sand or sandy soil fall on the shed body 2, the sand or sandy soil can pass through the hollow slots 6 and fall to the bottom surface of the mine roadway, preventing the sand or sandy soil from accumulating on the shed body 2.

[0066] If too much sand and gravel accumulates on the shed body 2, when the mine roadway collapses, it will be difficult for the shed body 2 to buffer the falling stones. Therefore, the design of this embodiment saves the trouble of manual cleaning.

[0067] Embodiment 3

[0068] This embodiment provides a shielding shed for underground safety prevention. In addition to including the technical solutions of the above embodiment, the structure of the installation rod 1 is also improved;

[0069] In this embodiment, the installation rod 1 includes: an inner rod 101, which includes an upper section and a lower section; an installation bottom pipe 102, which is detachably sleeved on the outer wall of the lower section, and its bottom is provided with an installation part that can be inserted into the bottom surface of the mine roadway, and its position in the axial direction of the inner rod 101 can be adjusted; a fixed sleeve 103, which is detachably sleeved on the outer wall of the upper section; wherein, the installation sleeve 3 is sleeved on the outer wall of the upper section, and the fixed sleeve 103 can limit the installation sleeve 3 from moving along the axial direction of the inner rod 101;

[0070] The installation sleeve 3 is sleeved on the outer wall of the inner rod 101. The inner diameter of the fixed sleeve 103 is slightly larger than the diameter of the inner rod 101, but smaller than the outer diameter of the installation sleeve 3. During installation, first sleeve the fixed sleeve 103 on the outer wall of the upper section of the inner rod 101, and then sleeve the shed body 2 on the outer wall of the inner rod 101 through the installation sleeve 3, so that the bottom surface of the installation sleeve 3 contacts the upper surface of the fixed sleeve 103. At this time, the fixed sleeve 103 will limit the installation sleeve 3 from moving downwards further, thus restricting the installation height of the shed body 2 first;

[0071] During actual installation, the number of fixed sleeves 103 can be increased or decreased according to installation requirements. For example, two fixed sleeves 103 are successively sleeved on the outer wall of the upper section of the inner rod 101, and then the installation sleeve 3 is sleeved. During production and manufacturing, the length of the fixed sleeve 103 is not limited either, and the manufacturer can manufacture a suitable fixed sleeve 103 according to the production and manufacturing capacity;

[0072] The installation bottom pipe 102 is sleeved on the outer wall of the lower section of the inner rod 101. Please refer to Figure 3 , an installation part is provided at the bottom of the installation bottom pipe 102 for connecting with the bottom surface of the mine roadway. The installation bottom pipe 102 can be sleeved from the end of the lower section of the inner rod 101. In particular, please refer to Figure 9 , internal threads are provided on the inner wall of the installation bottom pipe 102, and external threads adapted to the internal threads are provided on the outer wall of the lower section of the inner rod 101. The installation bottom pipe 102 and the lower section of the inner rod 101 are fixed by threaded connection, and the axial position between the installation bottom pipe 102 and the inner rod 101 can be adjusted in this connection manner, so as to facilitate the installation of the installation rod 1 and the mine roadway.

[0073] Regarding the connection method between the fixed sleeve 103 and the upper section of the inner rod 101, a threaded connection method can also be adopted;

[0074] In addition, in order to facilitate the rotation of the inner rod 101, a force-applying rod extending in the diameter direction of the inner rod 101 is provided in the middle of the inner rod 101. After the installation bottom pipe 102 is connected and fixed to the bottom surface of the mine roadway, the inner rod 101 can be rotated through the force-applying rod, so as to connect the upper end of the installation rod 1 to the top of the mine roadway.

[0075] Through the above technical solution, when installing the protective shed in the mine roadway, the installation bottom pipe 102 and the inner rod 101 can be axially approximated first. At this time, when the installation rod 1 is erected, the upper end of the installation rod 1 will not contact the top of the mine roadway. After the installation bottom pipe 102 is connected and fixed to the bottom surface of the mine roadway, the inner rod 101 is rotated to make the inner rod 101 move upward relative to the installation bottom pipe 102, so that the upper end of the installation rod 1 approaches the top of the mine roadway and is connected and fixed thereto, reducing the installation difficulty of the protective shed in the mine roadway.

[0076] Embodiment 4

[0077] As Figures 6-8 shown, this embodiment provides a protective shed for underground safety prevention. In addition to including the technical solutions of the above embodiments, the connection method between the shed body 2 and the installation rod 1 is also improved;

[0078] In this embodiment, a buffer plate 7 is provided on the inner wall of the installation sleeve 3, and the buffer plate 7 is connected to the installation sleeve 3 through a threaded rod 8; specifically: one end of the buffer plate 7 extends out of the installation sleeve 3 and a limiting portion 12 is formed at the end of the buffer plate 7. A buffer groove 9 is provided on the side wall of the buffer plate 7 close to the inner wall of the installation sleeve 3. A threaded installation hole 10 is provided on the bottom surface of the buffer groove 9. A threaded through hole 13 penetrating the inner and outer surfaces is provided on the side wall of the installation sleeve 3. The threaded end of the threaded rod 8 is threadedly engaged with the threaded through hole 13 and then extends into the buffer groove 9 to be threadedly connected with the threaded installation hole 10. A buffer spring 11 is provided in the buffer groove 9, and both ends of the buffer spring 11 are respectively connected to the inner wall of the installation sleeve 3 and the bottom surface of the buffer groove 9;

[0079] When assembling the buffer plate 7 and the mounting sleeve 3, taking the installation of the buffer plate 7 on the upper part of the mounting sleeve 3 as an example, one end of the buffer spring 11 can be fixed on the bottom surface of the buffer groove 9 first, and then the buffer plate 7 with the buffer spring 11 is inserted into the mounting sleeve 3 from the upper end opening of the mounting sleeve 3, so that the other end of the buffer spring 11 faces the inner wall of the mounting sleeve 3. When the limiting part 12 contacts the upper surface of the mounting sleeve 3, the positions of the threaded mounting holes 10 and the threaded through holes 13 are opposite. Then, the threaded end of the threaded rod 8 is threadedly engaged with the threaded through hole 13 and the threaded rod 8 is rotated continuously, so that the end of the threaded rod 8 is threadedly engaged with the threaded mounting hole 10. During the threaded engagement process of the threaded rod 8 and the threaded mounting hole 10, the end of the buffer spring 11 away from the bottom surface of the buffer groove 9 contacts the inner wall of the mounting sleeve 3 and is squeezed by the contact surfaces at both ends. After the threaded rod 8 and the threaded mounting hole 10 are fully engaged, the outer wall of the buffer plate 7 is close to or in contact with the inner wall of the mounting sleeve 3, and the buffer spring 11 is squeezed and has a tendency to extend and reset at both ends.

[0080] In this embodiment, please refer to Figure 8 , each buffer plate 7 is arc-shaped, the arc angle of each arc-shaped plate does not exceed 180°, at least two buffer plates 7 are provided on both the upper and lower parts of the mounting sleeve 3, and the inner wall of the buffer plate 7 contacts the outer wall of the inner rod 101 in the installed state, and the end of the buffer plate 7 at the lower part of the mounting sleeve 3 is connected to the fixed sleeve 103.

[0081] When the shed body 2 is impacted by an external force, the impact force will be transmitted to the buffer plate 7 through the mounting sleeve 3. Due to the action of the impact force, the mounting sleeve 3 and the buffer plate 7 will be continuously squeezed or pulled, so that a gap will be generated between the mounting sleeve 3 and the buffer plate 7, and the threaded rod 8 and the threaded through hole 13 or the threaded mounting hole 10 will become loose. At this time, the buffer spring 11 can be deformed to fill this gap, and the threaded rod 8 can continue to fasten the mounting sleeve 3 and the buffer plate 7;

[0082] Moreover, the buffer plate 7 can be made of an elastic material, and the buffer plate 7 itself can perform a buffering when being impacted, reducing the impact transmission from the shed body 2 and the mounting rod 1.

[0083] Embodiment 5

[0084] This embodiment discloses a use method suitable for the cover shed in the foregoing embodiments. The use method includes the following steps:

[0085] X1. Part preparation: Transport the installation parts including the shed body 2, the inner rod 101, the installation bottom pipe 102, the fixed sleeve 103, the buffer plate 7, the buffer spring 11, and the threaded rod 8 into the mine tunnel;

[0086] X2. Setup: First, lay the inner rod 101 flat on the bottom surface of the mine tunnel. Slip the installation bottom tube 102 onto the lower section of the inner rod 101 near the upper section and fix it. Then, slip the fixed sleeve 103 onto the upper section of the inner rod 101 and fix it to form the installation rod 1. Fix multiple buffer plates 7 at corresponding positions on the inner wall of the installation sleeve 3 through the threaded rod 8. Slip the shed body 2 onto the upper section of the inner rod 101 through the installation sleeve 3 and make the limiting part 12 contact and connect with the fixed sleeve 103.

[0087] X3. Installation: Stand up the assembled installation rod 1 so that the lower end of the installation bottom tube 102 is inserted into the bottom surface of the mine tunnel and fixed. Then, adjust the inner rod 101 upward relative to the installation bottom tube 102, so that the upper end of the inner rod 101 approaches the top of the mine tunnel and connects with the top of the mine tunnel to complete the setup.

[0088] In this embodiment, the shielding shed is disassembled into smaller components and carried into the mine tunnel for setup and installation. Of course, it is also possible to first assemble the inner rod 101, the installation bottom tube 102, and the fixed sleeve 103 outside the mine tunnel, and then assemble the shed body 2 with the buffer plate 7 and the buffer spring 11. After that, transport the installation rod 1 and the shed body 2 into the mine tunnel for the installation of the shielding shed and the mine tunnel.

[0089] During production and manufacturing, the inner rod 101, the installation bottom tube 102, and the fixed sleeve 103 can be designed in multiple specifications to cope with the internal conditions of different mine tunnels, so as to select the most suitable combination to complete the installation of the shielding shed.

[0090] The shielding shed is mainly installed near the working points of the workers. Generally, a shielding shed can be set every 5 - 10 m. For a shielding shed at a certain point, if ore mining is no longer required near this point, the shielding shed at this point can be dismantled and transferred to another new point, so as to make full use of the shielding shed.

[0091] The above describes the embodiments of the present application with reference to the accompanying drawings. Without conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the above specific implementation manners. The above specific implementation manners are only illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them belong to the protection scope of the present application.

Claims

1. A protective shed for underground safety prevention, characterized in that, it includes: Installation rods (1), both ends of which can be respectively connected to the top and bottom of the mine roadway; A shed body (2), which is connected to the installation rod (1), and has at least one deployable stress-bearing surface that can withstand a certain impact; Wherein, the stress-bearing surface is perpendicular to the axis of the installation rod (1); An installation sleeve (3) is provided on the shed body (2), and the shed body (2) is connected to the installation rod (1) through the installation sleeve (3); The installation rod (1) includes: An inner rod (101), which includes an upper section and a lower section; An installation bottom pipe (102), which is detachably sleeved on the outer wall of the lower section, has an installation part at its bottom that can be inserted into the bottom of the mine roadway, and its position in the axial direction of the inner rod (101) can be adjusted; A fixed sleeve (103), which is detachably sleeved on the outer wall of the upper section; Wherein, the installation sleeve (3) is sleeved on the outer wall of the upper section, and the fixed sleeve (103) can limit the installation sleeve (3) from moving along the axial direction of the inner rod (101); Internal threads are provided on the inner wall of the installation bottom pipe (102), external threads are provided on the lower section of the inner rod (101), and the installation bottom pipe (102) is connected to the outer wall of the lower section of the inner rod (101) by threaded connection; A buffer plate (7) is provided on the inner wall of the installation sleeve (3), the buffer plate (7) is connected to the installation sleeve (3) through a threaded rod (8), a buffer groove (9) is provided on the side wall of the buffer plate (7) close to the inner wall of the installation sleeve (3), a threaded installation hole (10) is provided on the bottom surface of the buffer groove (9), a threaded through hole (13) penetrating the inner and outer surfaces is provided on the side wall of the installation sleeve (3), the threaded end of the threaded rod (8) is threadedly engaged with the threaded through hole (13) and then extends into the buffer groove (9) to be threadedly connected with the threaded installation hole (10), and a buffer spring (11) is provided in the buffer groove (9), and both ends of the buffer spring (11) are respectively connected to the inner wall of the installation sleeve (3) and the bottom surface of the buffer groove (9).

2. A protective shed for underground safety prevention according to claim 1, characterized in that: A plurality of hollow grooves (6) penetrating the upper and lower surfaces are provided on the shed body (2).

3. A protective shed for underground safety prevention according to claim 1, characterized in that: The shed body (2) includes a plurality of main rod bodies (4), the plurality of main rod bodies (4) are on the same horizontal plane, the plurality of main rod bodies (4) support the stress-bearing surface at the same time, and one end of the plurality of main rod bodies (4) is connected to the outer wall of the installation sleeve (3).

4. A protective shed for underground safety prevention according to claim 3, characterized in that: The shed body (2) further includes a plurality of auxiliary rod bodies (5) for supporting the main rod bodies (4), the first ends of the plurality of auxiliary rod bodies (5) are connected to the outer wall of the installation sleeve (3), and the second ends of the plurality of auxiliary rod bodies (5) are connected to the side walls of the main rod bodies (4).

5. A protective shed for underground safety prevention according to claim 1, characterized in that: The buffer plate (7) is arc-shaped. At least two buffer plates (7) are provided at the upper and lower parts of the mounting sleeve (3). One end of the buffer plate (7) extends out of the mounting sleeve (3), and a limiting part (12) is formed at the end of the buffer plate (7). The end of the buffer plate (7) at the lower part of the mounting sleeve (3) is connected to the fixed sleeve (103).

6. A method for using a protective shed for underground safety prevention, characterized in that this method for use is applicable to the protective shed described in claim 5, and this method for use includes the following steps: X1. Part preparation: Transport the installation parts including the shed body (2), inner rod (101), installation bottom pipe (102), fixed sleeve (103), buffer plate (7), buffer spring (11), and threaded rod (8) into the mine tunnel. X2. Erection: First, lay the inner rod (101) flat on the bottom surface of the mine tunnel. Sleeve the installation bottom pipe (102) on the lower section of the inner rod (101) at a position close to the upper section and fix it. Then, sleeve the fixed sleeve (103) on the upper section of the inner rod (101) and fix it to form the installation rod (1). Fix a plurality of buffer plates (7) at corresponding positions on the inner wall of the mounting sleeve (3) through the threaded rod (8). Sleeve the shed body (2) on the upper section of the inner rod (101) through the mounting sleeve (3) and make the limiting part (12) contact and connect with the fixed sleeve (103). X3. Installation: Stand up the erected installation rod (1) so that the lower end of the installation bottom pipe (102) is inserted into the bottom surface of the mine tunnel and fixed. Then, adjust the inner rod (101) upward relative to the installation bottom pipe (102), so that the upper end of the inner rod (101) approaches the top of the mine tunnel and is connected to the top of the mine tunnel to complete the erection.

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