Supporting structure

Abstract

The invention relates to the field of mine tunnel supporting equipment, in particular to a supporting structure which comprises a supporting frame, a protective support and a supporting anchor rod. Wherein the protective bracket is fixedly connected outside the support frame. The supporting anchor rods comprise the first supporting anchor rods and the second supporting anchor rods, and the first supporting anchor rods and the second supporting anchor rods are arranged in the supporting frame in a staggered mode. Wherein the protection support comprises an outer plate, a bottom plate and a supporting plate, the outer plate is fixed to the outer side of the supporting frame, the bottom plate is connected to the bottom end of the supporting frame and the bottom end of the outer plate, the contact area of the whole supporting structure and a foundation in a mine tunnel is increased, acting force on the foundation is dispersed, and potential safety hazards caused by ground collapse due to large stress of the supporting structure are avoided. The supporting plate is installed between the supporting frame and the protective support. The supporting anchor rod penetrates through the supporting frame and the outer plate to be connected to the cavity of the mine tunnel, acting force vertically acting on the bottom end of the supporting frame is dispersed to the side wall of the supporting frame, and the stability of the supporting structure is guaranteed to a certain degree.

Description

Technical Field

[0001] The invention relates to the field of mine tunnel support equipment, and in particular to a support structure. Background Art

[0002] The existing mine tunnel support structure is usually provided with an arc-shaped support frame, and the support frame is reinforced to ensure that when the pressure of the mine tunnel side wall acts on the support frame, the support frame can transfer the pressure to the foundation of the mine tunnel.

[0003] However, at this time, the pressure of the side wall of the mine tunnel only acts on the contact point between the foundation and the support frame, which causes a large force on the foundation, which may cause the ground surface in the mine tunnel to collapse, thereby affecting the stability of the mine support structure and causing safety accidents. Summary of the invention

[0004] The present invention is made to solve the above-mentioned technical problems, and its purpose is to provide a support structure that can increase the force area of ​​the support frame and the protective bracket on the foundation by setting a protective bracket with an outer plate and a bottom plate, thereby reducing the possibility of foundation collapse in the mine tunnel.

[0005] In order to achieve the above-mentioned purpose, the present invention provides a support structure, including: a support frame; a protective support fixedly connected to the outside of the support frame; a support anchor rod, including a first support anchor rod and a second support anchor rod, and the first support anchor rod and the second support anchor rod are staggered in the support frame; wherein the protective support includes an outer plate, a bottom plate and a support plate, the outer plate is fixed to the outside of the support frame, the bottom plate is connected to the support frame and the bottom end of the outer plate, the support plate is installed between the support frame and the protective support, and the support anchor rod passes through the support frame and the outer plate to be connected to the cavity of the mine tunnel.

[0006] Preferably, a plurality of support plates are provided, which are evenly distributed between the support frame and the protective support; and the support plate is an arc-shaped plate.

[0007] Preferably, one end of the support anchor rod abuts against the inner side of the support frame, and the other end of the support anchor rod passes through the support frame and the outer plate and is fixed to the wall of the mine tunnel.

[0008] Preferably, a fixing structure is provided at one end of the support anchor rod close to the mine tunnel, and the fixing structure can be retracted to be pressed against the support anchor rod and can be unfolded to form a cone structure to be supported on the wall of the mine tunnel.

[0009] Preferably, the fixing structure comprises a first fixing block and a second fixing block which are arranged in sequence, and a diameter of the first fixing block is greater than a diameter of the second fixing block.

[0010] Preferably, the diameter of the first fixing block is twice the diameter of the second fixing block.

[0011] Preferably, it also includes a plurality of supporting base plates, which are installed in parallel on both sides of the supporting frame.

[0012] Preferably, the support base plate includes a first support base plate and a second support base plate, and the first support base plate and the second support base plate are equidistantly arranged on both sides of the support frame; a first channel is formed between two adjacent first support base plates, and a second channel is formed between two adjacent second support base plates, and the first support anchor rod and the second support anchor rod are respectively arranged in the first channel and the second channel.

[0013] Preferably, it also includes a lighting lamp installed on the connecting rod of the first supporting anchor rod and / or the second supporting anchor rod.

[0014] Preferably, the connecting rods are evenly arranged on the side walls of the first supporting anchor rod and / or the second supporting anchor rod.

[0015] According to the above description and practice, the support structure of the mine tunnel described in the present invention includes a support frame, a protective support and a support anchor. Among them, the protective support is fixedly connected to the outside of the support frame, and is used to expand the contact area between the support structure and the mine tunnel wall to achieve the support strength of the mine tunnel. The support anchor includes a first support anchor and a second support anchor, and the first support anchor and the second support anchor are staggered in the support frame, so that the support force of the first support anchor and the second support anchor on the protective support is always balanced. Among them, the protective support includes an outer plate, a bottom plate and a support plate, the outer plate is fixed to the outside of the support frame, and the bottom plate is connected to the bottom end of the support frame and the outer plate, which increases the contact area of ​​the entire support structure with the foundation in the mine tunnel, disperses the force on the foundation, and avoids the collapse of the ground due to the large force on the support structure, thereby causing safety hazards. The support plate is installed between the support frame and the protective support, and further provides support between the support frame and the protective support, thereby enhancing the support effect of the entire support structure in the mine tunnel. The supporting anchor rod passes through the supporting frame and the outer plate and is connected to the cavity of the mine tunnel, so as to disperse the vertical force acting on the bottom end of the supporting frame to the side wall of the supporting frame, thus ensuring the stability of the supporting structure to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a support structure involved in an embodiment of the present invention.

[0017] Figure 2 It is a front view of a supporting structure involved in one embodiment of the present invention.

[0018] Figure 3It is a schematic structural diagram of a supporting anchor rod of a supporting structure involved in one embodiment of the present invention. DETAILED DESCRIPTION

[0019] The exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that the disclosure will be more comprehensive and complete and fully convey the concepts of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0020] In addition, the accompanying drawings are only schematic diagrams of the present invention and are not necessarily drawn to scale. The same reference numerals in the figures represent the same or similar parts, so their repeated description will be omitted. It should be noted that in the present invention, the terms "including", "configured with", and "set in" are used to express the meaning of open-ended inclusion, and mean that there may be other elements / components / etc. in addition to the listed elements / components / etc.; the terms "first", "second", etc. are only used as marks, not to limit the number or order of their objects; the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral 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, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] The present invention discloses a support structure for a mine tunnel. Figures 1 to 3The support structure includes a support frame 1, a protective support 2 and a support anchor 4. The protective support 2 is fixedly connected to the outside of the support frame 1 to expand the contact area between the support structure and the mine tunnel wall to achieve the support strength of the mine tunnel. The support anchor 4 includes a first support anchor 401 and a second support anchor 402. The first support anchor 401 and the second support anchor 402 are staggered in the support frame 1 so that the support force of the first support anchor 401 and the second support anchor 402 on the protective support 2 is always balanced. The protective support 2 includes an outer plate 201, a bottom plate 202 and a support plate 203. The outer plate 201 is fixed to the outside of the support frame 1, and the bottom plate 202 is connected to the bottom of the support frame 1 and the outer plate 201, which increases the contact area between the entire support structure and the foundation in the mine tunnel, disperses the force on the foundation, and avoids ground collapse due to the large force on the support structure, thereby causing safety hazards. The support plate 203 is installed between the support frame 1 and the protective support 2, further providing support force between the support frame 1 and the protective support 2, thereby enhancing the support effect of the entire support structure in the mine tunnel. The support anchor 4 passes through the support frame 1 and the outer plate 201 and is connected to the cavity of the mine tunnel, so as to disperse the force acting vertically on the bottom end of the support frame 1 to the side wall of the support frame 1, thereby ensuring the stability of the entire support structure to a certain extent.

[0023] Furthermore, in some embodiments, a plurality of support plates 203 are provided, which are evenly distributed between the support frame 1 and the protective support 2, and are used to generate a certain support between the support frame 1 and the protective support 2. Specifically, the support plates 203 are distributed between the support frame 1 and the outer plate 201, and a plurality of support plates 203 are stacked, and the bottom end of the support plate 203 abuts against the bottom plate 202. On the one hand, it avoids the action of the wall of the mine tunnel on the outer plate 201 to squeeze the outer plate 201 in the direction close to the support frame 1, so that a depression is generated between the wall of the mine tunnel and the outer plate 201, and the support balance between the entire support structure and the wall of the mine tunnel is destroyed; on the other hand, the support plate 203 transmits the force of the wall of the mine tunnel on the outer plate 201 to the bottom plate 202 through a plurality of stacked support plates 203, further ensuring the support effect of the entire support structure.

[0024] In other embodiments, the support plate 203 is an arc-shaped plate. The arc-shaped support plate 203 can transmit the force of the mine tunnel wall on the outer plate 201 downward layer by layer, and disperse the force and evenly transmit it to various positions of the bottom plate 202, thereby reducing the direct force of the mine tunnel wall on the bottom plate 202, further maintaining the stability of the entire support structure, and increasing its safety.

[0025] It can be understood that in order to further reduce the force exerted by the mine tunnel wall on the bottom plate 202, in some embodiments, one end of the support anchor 4 abuts against the inner side of the support frame 1, and the other end of the support anchor 4 passes through the support frame 1 and the outer plate 201 and is fixed to the wall of the mine tunnel. A triangular structure is formed between the support anchor 4 and the wall and bottom plate 202 of the mine tunnel, and the stability of the triangle is used to support the wall of the mine tunnel, thereby dispersing the force exerted by the wall of the mine tunnel on the bottom plate 202, thereby preventing the foundation of the mine tunnel from being subjected to a large force transmitted from the bottom plate 202, causing the foundation to collapse, and causing a safety accident.

[0026] Furthermore, in order to ensure that the support anchor rod 4 can be stably fixed to the wall of the mine tunnel, in some embodiments, a fixed structure is provided at one end of the support anchor rod 4 close to the mine tunnel, and the top of the fixed structure is fixedly connected to the support anchor rod 4. The fixed structure can be retracted and pressed against the support anchor rod 4 and can be expanded to form a conical structure supported on the wall of the mine tunnel. When the support anchor rod 4 passes through the support frame 1 and the protective bracket 2 and is fixed to the wall of the mine tunnel, the fixed structure is retracted and pressed close to the support anchor rod 4. When the support anchor rod 4 reaches the designated position, an anchoring agent is injected into the place where the broken rock mass is produced on the wall of the mine tunnel, and the support rod is fixedly connected to the wall of the mine tunnel. And the support anchor rod 4 begins to be subjected to the pulling force of the wall of the mine tunnel. At this time, the bottom of the fixed structure receives the reaction force of the wall of the mine tunnel and expands into a cone structure under the action of the reaction force, thereby increasing the resistance between the support anchor rod 4 and the wall of the mine tunnel, preventing the support anchor rod 4 from detaching from the wall of the mine tunnel under the action of the pulling force, and further improving the fixing effect between the support anchor rod 4 and the wall of the mine tunnel, thereby strengthening the supporting effect of the entire support structure.

[0027] It can be understood that the fixed structure includes a first fixed block 403 and a second fixed block 404 arranged in sequence, and the tops of the first fixed block 403 and the second fixed block 404 are fixedly connected to the supporting anchor rod 4. By arranging the first fixed block 403 and the second fixed block 404 in parallel, the fixing effect of the supporting anchor rod 4 and the wall of the mine tunnel is further strengthened.

[0028] In some embodiments, the diameter of the first fixed block 403 is greater than the diameter of the second fixed block 404, to avoid the situation where, when the first fixed block 403 and the second fixed block 404 are arranged in parallel and have the same diameter, after the second fixed block 404 receives the reaction force and is unfolded, the reaction force transmitted to the first fixed block 403 is insufficient to unfold or fully unfold the first fixed block 403, thereby affecting the supporting effect of the first fixed block 403 and reducing the effectiveness of the setting of the first fixed block 403.

[0029] It can be understood that in order to ensure that the first fixed block 403 can still be fully opened after the second fixed block 404 is fully opened, in some embodiments, the diameter of the first fixed block 403 is twice the diameter of the second fixed block 404, thereby ensuring the resistance between the support anchor 4 and the wall of the mine tunnel, thereby improving the supporting effect of the support structure on the wall of the mine tunnel.

[0030] Furthermore, in order to ensure the supporting effect of the support frame 1 and reduce the direct force of the support frame 1 on the foundation of the mine tunnel, in some embodiments, the support structure also includes a supporting base plate 3, and a plurality of supporting base plates 3 are provided, and the plurality of supporting base plates 3 are installed in parallel on both sides of the support frame 1, so as to gradually disperse and transmit the force acting on the support frame 1 to the foundation of the mine tunnel, thereby further avoiding the force on the support frame 1 directly acting on the foundation of the mine tunnel, causing the collapse of the foundation and causing a safety accident.

[0031] It can be understood that in some embodiments, the support base plate 3 includes a first support base plate 31 and a second support base plate 32, and the first support base plate 31 and the second support base plate 32 are equidistantly arranged on both sides of the support frame 1 to ensure that the supporting force of the support base plate 3 on both sides of the support frame 1 is always balanced, thereby avoiding the uneven supporting force on both sides of the bottom end of the support frame 1, and preventing the force on the side with the support base plate 3 from being transmitted to the side without the support base plate 3, resulting in excessive force on the foundation on one side and causing a collapse accident.

[0032] A first channel 7 is formed between two adjacent first support base plates 31, and a second channel 8 is formed between two adjacent second support base plates 32. The first support anchor rod 401 and the second support anchor rod 402 are respectively arranged in the first channel 7 and the second channel 8, so that both sides of the support frame 1 can be supported by the support base plate 3 and the support anchor rod 4 at the same time, further ensuring the support effect of the entire support device.

[0033] In some embodiments, the support structure further includes a lighting lamp 6 installed on the connecting rod 5 of the first support anchor 401 and / or the second support anchor 402 for illuminating the interior of the support structure, wherein the lighting lamp 6 may be rechargeable or battery-powered.

[0034] Among them, the connecting rods 5 are evenly arranged on the side walls of the first support anchor rod 401 and / or the second support anchor rod 402, and are used as mounting frames to install the lighting lamps 6. In addition, multiple connecting rods 5 can be provided according to actual lighting needs, thereby ensuring the brightness of the support structure and avoiding the occurrence of safety accidents.

[0035] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A support structure for a mine tunnel, characterized in that: include: Support frame; A protective bracket, fixedly connected to the outside of the support frame; A support anchor rod, comprising a first support anchor rod and a second support anchor rod, wherein the first support anchor rod and the second support anchor rod are alternately arranged in the support frame; Among them, the protective support includes an outer plate, a bottom plate and a support plate, the outer plate is fixed to the outer side of the support frame, the bottom plate is connected to the support frame and the bottom end of the outer plate, the support plate is installed between the support frame and the protective support, and the support anchor rod passes through the support frame and the outer plate and is connected to the cavity of the mine tunnel.

2. The support structure according to claim 1, characterized in that: The support plates are provided in plurality and are evenly distributed between the support frame and the protective support; And the support plate is an arc-shaped plate.

3. The support structure according to claim 1, characterized in that: One end of the support anchor rod abuts against the inner side of the support frame, and the other end of the support anchor rod passes through the support frame and the outer plate and is fixed to the wall of the mine tunnel.

4. The support structure according to claim 3, characterized in that: A fixing structure is arranged at one end of the support anchor rod close to the mine tunnel. The fixing structure can be retracted and pressed against the support anchor rod and can be unfolded to form a cone structure to support the wall of the mine tunnel.

5. The supporting structure according to claim 4, characterized in that: The fixing structure comprises a first fixing block and a second fixing block which are arranged in sequence, and a diameter of the first fixing block is greater than a diameter of the second fixing block.

6. The supporting structure according to claim 5, characterized in that: The diameter of the first fixing block is twice the diameter of the second fixing block.

7. The supporting structure according to claim 1, characterized in that: Also includes: A plurality of support base plates are provided and installed in parallel on both sides of the support frame.

8. The supporting structure according to claim 7, characterized in that: The support base plate comprises a first support base plate and a second support base plate, wherein the first support base plate and the second support base plate are equidistantly arranged on both sides of the support frame; A first channel is formed between two adjacent first supporting base plates, a second channel is formed between two adjacent second supporting base plates, and the first supporting anchor rod and the second supporting anchor rod are respectively disposed in the first channel and the second channel.

9. The supporting structure according to claim 1, characterized in that: Also includes: A lighting lamp is installed on the connecting rod of the first supporting anchor rod and / or the second supporting anchor rod.

10. The supporting structure according to claim 9, characterized in that: The connecting rods are evenly arranged on the side walls of the first supporting anchor rod and / or the second supporting anchor rod.

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