A support unit and a support assembly

Abstract

The present invention proposes a support unit and a support assembly, wherein the support unit comprises: a base, a support rod and a mounting member, wherein the base is used to be installed on the ground, the support rod comprises a connecting section and a supporting section connected in sequence, the connecting section is detachably connected to the base, the supporting section protrudes in a direction away from the base so as to contact the top wall of the tunnel, the mounting member is connected to the supporting section and is used to fix a grid on the support rod so that the grid is laid along the outer peripheral contour of the support rod, and there are a plurality of mounting members, which are spaced apart along the extension direction of the supporting section. The support unit of the present invention has simple installation steps, convenient support, and good use effect.

Description

Technical Field

[0001] The present invention relates to the technical field of coal mine tunnel support, and in particular to a support unit and a support assembly. Background Art

[0002] The support structure of coal tunnels includes the roof, which is divided into pseudo-roof, direct roof and old roof. Common support methods for the roof can be divided into single support, friction metal support and hydraulic support. However, in the actual construction process, there are often risks such as special geological structures, increased and enlarged cracks, cracking sounds from the roof, falling gangue and slag from the roof, increased water dripping or increased gas. In response to these risks, it is necessary to carry out comprehensive grid-like protection of the inner wall of the tunnel to strengthen the safety protection of the coal mining working face.

[0003] In the related art, coal mine tunnels are generally covered directly on the surface of the protective components of the steel structure by weaving a grid, but the grid is generally fixed by bundling and fixing in multiple parts, which requires many installation steps, and the integration of the grid and the support structure is insufficient, which easily leads to blind spots in the grid protection. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, an embodiment of the present invention proposes a support unit, which has the advantages of fewer grid installation steps, convenient support, and good use effect.

[0006] An embodiment of the present invention provides a support assembly, which has the advantages of fewer grid installation steps, convenient support, and good use effect.

[0007] The supporting unit of the embodiment of the present invention comprises:

[0008] A base, the base being used for installation on the ground;

[0009] A support rod, the support rod comprising a connecting section and a supporting section connected in sequence, the connecting section being detachably connected to the base, and the supporting section protruding in a direction away from the base so as to contact the top wall of the laneway;

[0010] A mounting member connected to the support section and used to fix the grid on the support rod so that the grid is laid along the outer peripheral contour of the support rod. There are multiple mounting members, and the multiple mounting members are arranged at intervals along the extension direction of the support section.

[0011] The support unit of the embodiment of the present invention first covers the grid on the support rod, and then connects it to the support rod using the mounting piece. At the same time, the grid can be pressed between the mounting piece and the support rod, thereby reducing the steps of installing the grid. It has the advantages of convenient support and good use effect.

[0012] In some embodiments, the support segment has a plurality of mounting holes, the plurality of mounting holes correspond one-to-one to the plurality of mounting members, at least a portion of the mounting members fit within the mounting holes, and a depth dimension of the mounting holes is less than or equal to half of a radial dimension of the support segment.

[0013] In some embodiments, the support segment further has a plurality of mounting surfaces, the plurality of mounting surfaces correspond one-to-one to the plurality of mounting holes, and a plane where one of the mounting surfaces is located is orthogonal to the axial direction of the corresponding mounting hole.

[0014] In some embodiments, the connecting section has a first connecting portion, the base has a second connecting portion, one of the first connecting portion and the second connecting portion has a groove, and the other of the first connecting portion and the second connecting portion has a protrusion matching the groove.

[0015] In some embodiments, the supporting unit of the embodiment of the present invention further includes a limiting portion, the limiting portion is disposed in the groove, the protrusion is fitted in the groove and the protrusion is connected to the limiting portion.

[0016] In some embodiments, the supporting unit of the embodiment of the present invention further includes a first connecting member, and the first connecting member is threadedly matched with at least one of the first connecting portion and the second connecting portion.

[0017] In some embodiments, the supporting unit of the embodiment of the present invention further includes a first anchor rod, wherein the first anchor rod is connected to the base, and the first anchor rod extends in a direction away from the base.

[0018] The support assembly of the embodiment of the present invention comprises a support unit according to any one of the above embodiments, wherein the number of the support units is multiple and the multiple support units are arranged at intervals along the extension direction of the tunnel.

[0019] In some embodiments, the support assembly of the embodiment of the present invention further includes a plurality of second connecting members, the plurality of second connecting members correspond one-to-one to the plurality of support units, and two adjacent second connecting members are detachably connected.

[0020] The mounting member includes a first mounting section and a second mounting section connected in sequence, the first mounting section is used to be connected to the supporting section, and at least a portion of the second connecting member passes through the second mounting section.

[0021] In some embodiments, the support assembly of the embodiment of the present invention further includes a second anchor rod, the second anchor rod is connected to the second connecting member, and the second anchor rod extends in a direction away from the support rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic structural diagram of a support unit according to an embodiment of the present invention.

[0023] Figure 2 It is a schematic structural diagram of the support rod of the support unit according to an embodiment of the present invention.

[0024] Figure 3 It is a schematic structural diagram of the mounting components of the support unit according to an embodiment of the present invention.

[0025] Figure 4 It is a schematic diagram of the installation of the base of the supporting unit of the embodiment of the invention.

[0026] Figure 5 It is a schematic diagram of the installation of the base of the supporting unit of the embodiment of the invention.

[0027] Figure 6 It is a schematic structural diagram of a support assembly according to an embodiment of the present invention.

[0028] Figure 7 It is a structural schematic diagram of a hidden grid of a support assembly according to an embodiment of the present invention.

[0029] Figure 8 yes Figure 7 An enlarged schematic diagram of A is shown in FIG.

[0030] Fig. 9 yes Figure 7 An enlarged schematic diagram of B is shown in FIG.

[0031] Fig.10 It is a schematic diagram of the installation of the second connecting member of the support assembly according to an embodiment of the present invention.

[0032] Reference numerals:

[0033] Grid 100;

[0034] Base 1; second connecting portion 11; groove 111; limiting portion 112; fixing portion 12; fixing member 13; fixing hole 14;

[0035] Support rod 2; connecting section 21; first connecting portion 211; protrusion 212; supporting section 22; mounting hole 221; mounting surface 222; first reinforcing rib 23; limiting hole 24;

[0036] Mounting member 3; first mounting section 31; second mounting section 32; through hole 33;

[0037] A first connecting member 4;

[0038] The first anchor rod 5;

[0039] Second connecting member 6; T-shaped portion 61; connecting hole 62;

[0040] The second anchor rod 7;

[0041] Second reinforcing rib 8; reinforcing rib hole 81. DETAILED DESCRIPTION

[0042] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0043] The supporting unit according to the embodiment of the present invention is described below with reference to the accompanying drawings.

[0044] like Figure 1-Figure 5 As shown, the supporting unit of the embodiment of the present invention includes a base 1, a support rod 2 and a mounting member 3.

[0045] The base 1 is used to be installed on the ground. The support rod 2 includes a connecting section 21 and a supporting section 22 connected in sequence. The connecting section 21 is detachably connected to the base 1. The supporting section 22 protrudes in a direction away from the base 1 so as to contact the top wall of the tunnel. The mounting member 3 is connected to the supporting section 22 and is used to fix the grid 100 on the support rod 2 so that the grid 100 is laid along the outer peripheral contour of the support rod 2. There are multiple mounting members 3, and the multiple mounting members 3 are arranged at intervals along the extension direction of the supporting section 22.

[0046] Specifically, Figure 1-Figure 5 As shown, the bottom of the base 1 is provided with a fixing portion 12, the radial dimension of the fixing portion 12 is larger than the radial dimension of the base 1, and the contact area with the ground can be increased. The fixing portion 12 is provided with a plurality of fixing holes 14, which are arranged on the fixing portion 12 at intervals along the circumference of the base 1, and the lower end of the fixing member 13 passes through the fixing hole 14, so that the fixing member 13 can be inserted into the ground to achieve the function of fixing the base 1. Figure 4 As shown, the radial dimension of the fixing member 13 gradually decreases from top to bottom, which further facilitates the insertion of the fixing member 13 into the ground.

[0047] It is understandable that if Figure 1 and Figure 2 As shown, the support rod 2 is arc-shaped, and the middle part of the support rod 2 (ie, the support section 22) protrudes upward, so that the profile of the support rod 2 is similar to the inner wall profile of the lane, and it is convenient to fit the inner wall profile of the lane. Of course, the support rod 2 can also be a square frame.

[0048] Preferably, there are two bases 1 , and the two bases 1 are respectively connected to the two ends of the support rod 2 , which avoids the problem of the base 1 occupying a large area and facilitates the disassembly and assembly with the support rod 2 .

[0049] Optionally, the support rod 2 further includes a first reinforcing rib 23, a first end of the first reinforcing rib 23 is connected to the connecting section 21, and the other end of the first reinforcing rib 23 is connected to the supporting section 22. Figure 1 and Figure 2 As shown, there are a plurality of first reinforcing ribs 23 , and the plurality of first reinforcing ribs 23 are sequentially spaced apart along the extension direction of the support rod 2 .

[0050] The mounting member 3 and the support section 22 can be connected by threading, or by plugging, clamping, etc., so as to facilitate assembly and disassembly of the mounting member 3. During installation, the grid 100 is first covered on the support rod 2, and the mounting member 3 is installed on the support section 22, so that the grid 100 is placed between the mounting member 3 and the support section 22, and the mounting member 3 can be used to fix the grid 100 on the support rod 2, so that the grid 100 is fixed, and the operation is simple and convenient to use.

[0051] That is to say, the support unit of the embodiment of the present invention first covers the grid 100 on the support rod 2, and then connects it to the support rod 2 using the mounting member 3. At the same time, the grid 100 can be pressed between the mounting member 3 and the support rod 2, thereby reducing the installation steps of the grid 100 and having the advantages of convenient support and good use effect.

[0052] In some embodiments, the support segment 22 has multiple mounting holes 221, and the multiple mounting holes 221 correspond one-to-one to the multiple mounting members 3. At least part of the mounting members 3 fit into the mounting holes 221, and the depth dimension of the mounting holes 221 is less than or equal to half of the radial dimension of the support segment 22.

[0053] Specifically, Figure 1 As shown, an internal thread may be provided in the mounting hole 221 , and an external thread matching the internal thread may be provided on the mounting member 3 , so that the mounting member 3 is connected to the mounting hole 221 through threads.

[0054] It is understood that, preferably, Figure 1 and Figure 2 As shown, the cross section of the support rod 2 is circular, and the depth dimension of the mounting hole 221 is less than or equal to half of the radial dimension of the support section 22, thereby preventing the mounting hole 221 from penetrating the support rod 2 and ensuring the overall strength of the support rod 2.

[0055] In some embodiments, the support segment 22 further has a plurality of mounting surfaces 222 , and the plurality of mounting surfaces 222 correspond one-to-one to the plurality of mounting holes 221 . The plane where a mounting surface 222 is located is orthogonal to the axial direction of the corresponding mounting hole 221 .

[0056] Specifically, Figure 1As shown, the mounting surface 222 is located in the plane where the opening of the mounting hole 221 is located. Since the support rod 2 is cylindrical, when the mounting member 3 is connected to the support rod 2, the contact surface has less contact with the outer peripheral arc surface of the support rod 2, which is not conducive to fixing the grid 100. Therefore, opening the mounting surface 222 at the opening of the mounting hole 221 can increase the contact area between the mounting member 3 and the support rod 2, thereby facilitating the fixing of the grid 100.

[0057] In some embodiments, the connecting section 21 has a first connecting portion 211 , the base 1 has a second connecting portion 11 , one of the first connecting portion 211 and the second connecting portion 11 has a groove 111 , and the other of the first connecting portion 211 and the second connecting portion 11 has a protrusion 212 matching the groove 111 .

[0058] Specifically, Figure 1 and Figure 2 As shown, the first connection part 211 is located at the lower end of the connection section 21, and the second connection part 11 is located at the upper end of the base 1. The first connection part 211 can be provided with a groove 111, and the second connection part 11 is provided with a protrusion 212 matching the groove 111, or the second connection part 11 can be provided with a groove 111, and the first connection part 211 is provided with a protrusion 212 matching the groove 111.

[0059] Preferably, if Figure 1 As shown, the second connection part 11 is provided with a groove 111, the first connection part 211 is provided with a protrusion 212, and the base 1 is connected to the support rod 2 so that the protrusion 212 is inserted into the groove 111 to limit the movement of the support rod 2 in the left and right direction relative to the base 1.

[0060] It can be understood that the second connecting part 11 includes a first part and a second part arranged at intervals along the left-right direction, and a groove 111 is formed between the first part and the second part so that the protrusion 212 can be placed in the groove 111 and prevent the base 1 and the support rod 2 from being relatively fixed in the left-right direction, thereby improving the overall stability of the support unit.

[0061] Preferably, the supporting unit of the embodiment of the present invention further includes a limiting portion 112 , the limiting portion 112 is disposed in the groove 111 , the protrusion 212 fits in the groove 111 and the protrusion 212 is connected to the limiting portion 112 .

[0062] like Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, the lower end of the limiting portion 112 is connected to the bottom of the groove 111, and the limiting portion 112 extends from bottom to top. The bottom of the protrusion 212 is provided with a limiting groove matching the limiting portion 112, the protrusion 212 is placed in the groove 111, and the limiting portion 112 can be placed in the limiting groove, thereby further limiting the movement of the support rod 2 relative to the base 1, that is, the limiting portion 112 is placed in the limiting groove, which can prevent the support rod 2 and the base 1 from moving relative to each other in the front-to-back direction.

[0063] Preferably, an interference fit is adopted between the limiting portion 112 and the limiting groove.

[0064] In some embodiments, the supporting unit of the embodiment of the present invention further includes a first connecting member 4 , and the first connecting member 4 is threadedly matched with at least one of the first connecting portion 211 and the second connecting portion 11 .

[0065] It is understandable that if Figure 1 As shown, the first connecting member 4 can be a nut, and the first connecting member 4 has an internal thread. When the first connecting portion 211 is provided with a groove 111 and the second connecting portion 11 is provided with a protrusion 212, the outer peripheral surface of the first connecting portion 211 is provided with an external thread to facilitate the first connecting member 4 and the first connecting portion 211 to be connected by thread; when the second connecting portion 11 is provided with a groove 111 and the first connecting portion 211 is provided with a protrusion 212, the outer peripheral surface of the second connecting portion 11 is provided with an external thread to facilitate the first connecting member 4 and the first connecting portion 211 to be connected by thread.

[0066] In some embodiments, the supporting unit of the embodiment of the present invention further includes a first anchor rod 5 , which is connected to the base 1 and extends in a direction away from the base 1 .

[0067] Specifically, Figure 1 As shown, a first hole for installing a first anchor rod 5 is provided on the base 1, and one end of the first anchor rod 5 can pass through the first hole and be inserted into the side wall of the tunnel to achieve an anchoring effect.

[0068] Optionally, there are multiple first holes, and the multiple first holes are arranged along the height direction of the base 1 (eg Figure 1 The plurality of first anchor rods 5 are arranged at intervals in the up-down direction of the groove, and the plurality of first anchor rods 5 correspond one-to-one to the plurality of first holes.

[0069] The support assembly according to the embodiment of the present invention is described below with reference to the accompanying drawings.

[0070] like Figure 6-Figure 10 As shown, the support assembly of the embodiment of the present invention includes a support unit according to any one of the above embodiments, and there are multiple support units, which are arranged at intervals along the extension direction of the tunnel.

[0071] It is understandable that if Figure 6-Figure 10As shown, multiple support units are arranged along the extension direction of the tunnel (such as Figure 1 That is, a plurality of support units are arranged in sequence, the grid 100 is laid on the plurality of support units, and the grid 100 is fixed on the support rod 2 with the mounting member 3, so as to form an arched safety passage in the extension direction of the laneway, which is convenient for construction workers to pass through, easy to install, and has a good use effect.

[0072] In some embodiments, the support assembly of the embodiment of the present invention also includes multiple second connecting members 6, the multiple second connecting members 6 correspond one-to-one to the multiple support units, two adjacent second connecting members 6 are detachably connected, and the mounting member 3 includes a first mounting segment 31 and a second mounting segment 32 connected in sequence, the first mounting segment 31 is used to be connected to the support segment 22, and at least part of the second connecting member 6 passes through the second mounting segment 32.

[0073] Specifically, Figure 6-Figure 10 As shown, the second mounting section 32 has a through hole 33 extending in the front-to-back direction, and one end of the second connecting member 6 can pass through the through hole 33 and be connected to another adjacent second connecting member 6, thereby reinforcing the connection between the two adjacent supporting units.

[0074] It can be understood that both the front and rear ends of the second connecting member 6 have a T-shaped portion 61, and the T-shaped portion 61 is provided with a connecting hole 62. Two adjacent second connecting members 6 can be connected through the connecting hole 62 using screws, bolts, etc., so that two adjacent support units are connected through the second connecting member 6.

[0075] Preferably, the base 1 is further provided with a reinforcing rib hole 81, and the reinforcing rib hole 81 is used to install the second reinforcing rib 8. It can be understood that if Figure 6-Figure 10 As shown, a second reinforcing rib 8 can penetrate multiple reinforcing rib holes 81 along the front-to-back direction to strengthen the connection between multiple bases. The second reinforcing rib 8 and the reinforcing rib holes 81 can be connected by thread or by interference fit.

[0076] In some embodiments, the support assembly of the embodiment of the present invention further includes a second anchor rod 7 , the second anchor rod 7 is connected to the second connecting member 6 , and the second anchor rod 7 extends in a direction away from the support rod 2 .

[0077] Specifically, Figure 6-Figure 10 As shown, the second connecting member 6 is also provided with a second hole, and one end of the second anchor rod 7 can pass through the second hole and be inserted into the top wall of the tunnel to achieve the anchoring effect on the support unit and further improve the stability of the support assembly.

[0078] It should be noted that the second anchor rod 7 and the second hole may be connected by threaded connection or by interference fit to ensure the stability between the second anchor rod 7 and the second connecting member 6 .

[0079] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0080] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0081] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0082] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0083] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0084] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. A support assembly, characterized in that: The support assembly includes a plurality of support units, and the plurality of support units are arranged at intervals along the extension direction of the tunnel, and the support units include: A base, the base being used for installation on the ground; A support rod, the support rod comprising a connecting section and a supporting section connected in sequence, the connecting section being detachably connected to the base, and the supporting section protruding in a direction away from the base so as to contact the top wall of the laneway; A mounting member connected to the support section and used to fix the grid on the support rod so that the grid is laid along the outer peripheral contour of the support rod. There are multiple mounting members, and the multiple mounting members are arranged at intervals along the extension direction of the support section; The support assembly further includes a plurality of second connecting members, the plurality of second connecting members correspond to the plurality of support units one by one, two adjacent second connecting members are detachably connected, the mounting member includes a first mounting section and a second mounting section connected in sequence, the first mounting section is used to be connected to the support section, and at least a portion of the second connecting member passes through the second mounting section; The supporting assembly further includes a second anchor rod, which is connected to the second connecting member and extends in a direction away from the supporting rod.

2. The support assembly according to claim 1, characterized in that: The support segment has a plurality of mounting holes, and the plurality of mounting holes correspond one-to-one to the plurality of mounting members. At least a portion of the mounting members fits within the mounting holes, and a depth dimension of the mounting holes is less than or equal to half of a radial dimension of the support segment.

3. The support assembly according to claim 2, characterized in that: The support section also has a plurality of mounting surfaces, and the plurality of mounting surfaces correspond one-to-one to the plurality of mounting holes. The plane where one of the mounting surfaces is located is orthogonal to the axial direction of the corresponding mounting hole.

4. The support assembly according to claim 3, characterized in that: The connecting section has a first connecting portion, the base has a second connecting portion, one of the first connecting portion and the second connecting portion has a groove, and the other of the first connecting portion and the second connecting portion has a protrusion matching the groove.

5. The support assembly according to claim 4, characterized in that: It also includes a limiting portion, which is placed in the groove, the protrusion is fitted in the groove and the protrusion is connected to the limiting portion.

6. The support assembly according to claim 5, characterized in that: The supporting unit further includes a first connecting member, which is threadably engaged with at least one of the first connecting portion and the second connecting portion.

7. The support assembly according to claim 6, characterized in that: The supporting unit further includes a first anchor rod, which is connected to the base and extends in a direction away from the base.

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