Working platform for anchor cable in roadway construction

Abstract

The utility model relates to the technical field of roadway construction equipment, and discloses a working platform for roadway construction anchor cables. The working platform comprises a metal net, a hook assembly and a connecting plate. The metal net is laid on a coal wall or a roadway side; the hook assembly is provided with a hook and a horizontal supporting part. And the hook is hung on the metal net. The connecting plate is horizontally arranged on the withdrawing channel in the first direction. One end of the connecting plate is connected with the horizontal supporting part, and the other end is connected with a chute of the withdrawing channel. By arranging the hook assembly and the connecting plate, on one hand, a standing position can be provided for constructors, and on the other hand, the construction of the working platform can be realized by virtue of the chute, so that the arrangement of an additional supporting structure for supporting the connecting plate in the withdrawing channel is avoided, and the occupation of the working platform on the space in the withdrawing channel is reduced; the construction of the working platform in a limited space is ensured, the construction cost of the working platform is reduced, and the problem that in the prior art, no working platform special for anchor cable construction exists in the retracement channel is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of roadway construction equipment, in particular to an operation platform for roadway construction anchor cables. Background Art

[0002] The forming method of the coal mine retreat roadway is different from that of the roadway. The roadway tunneling is divided into two steps. The first step is to cut the upper and middle parts of the roadway, leaving a certain amount of bottom coal to facilitate workers to install roof bolts and anchor cables for support. The second step is to cut the lower part of the roadway. After the side support is completed, one cycle of the roadway is formed. The retreat roadway cutting is completed by a shearer in one cut, and the roof is supported by anchor cables. The height of the retreat roadway generally exceeds 3.5m, and it is difficult for workers to construct the anchor cables. Therefore, an operation platform needs to be erected. Summary of the Utility Model

[0003] The utility model provides an operation platform for roadway construction anchor cables to solve the problem that there is no operation platform for constructing anchor cables in the existing retreat roadway.

[0004] The utility model provides an operation platform for roadway construction anchor cables, including:

[0005] A metal mesh, laid on the coal wall or the roadway side;

[0006] A hook assembly, having a hook and a horizontal support part; the hook is hung on the metal mesh;

[0007] A connecting plate, horizontally arranged in the retreat roadway along a first direction; one end of the connecting plate is connected to the horizontal support part, and the other end is used for connecting with the chute of the retreat roadway.

[0008] According to the operation platform for roadway construction anchor cables provided by the utility model, the hook assembly includes:

[0009] A support structure, having the horizontal support part;

[0010] A plurality of hooked steel bars, the plurality of hooked steel bars are arranged at intervals along a second direction at one end of the horizontal support part close to the metal mesh, the upper end of the hooked steel bar forms the hook, the lower end of the hooked steel bar is connected to the support structure, and the second direction intersects with the first direction.

[0011] According to the operation platform for roadway construction anchor cables provided by the utility model, it further includes:

[0012] A limiting assembly, arranged at the other end of the horizontal support part far from the metal mesh; the limiting assembly is connected to the support structure to form a limiting space; one side of the limiting space far from the support structure has an opening, the opening is for the connecting plate to enter and exit the limiting space, and the limiting space is used for limiting the connecting plate along the second direction.

[0013] According to the working platform for roadway construction cable bolts provided by the present utility model, the limiting assembly includes:

[0014] Two limiting rods, which are arranged at intervals along the second direction at the other end of the horizontal support part away from the wire mesh; one end of each limiting rod is connected to the support structure, and the other end extends obliquely upward along the first direction. The two limiting rods and the support structure form the limiting space.

[0015] According to the working platform for roadway construction cable bolts provided by the present utility model, the length L4 of the limiting rod is 100 - 150 mm; the third included angle γ formed by the limiting rod and the plane where the horizontal support part is located is 20° - 50°.

[0016] According to the working platform for roadway construction cable bolts provided by the present utility model, the hook assembly includes two hooked steel bars; the support structure includes:

[0017] Four support steel bars, which are horizontally arranged and connected end to end to form a square frame. The square frame is the horizontal support part; two corners of the square frame are respectively welded and connected to the lower ends of the two hooked steel bars; the first included angle α formed by the hooked steel bar and the plane where the square frame is located is 110° - 120°.

[0018] According to the working platform for roadway construction cable bolts provided by the present utility model, the length L3 of the support steel bar is 300 - 450 mm.

[0019] According to the working platform for roadway construction cable bolts provided by the present utility model, the diameter of the support steel bar is 15 - 25 mm.

[0020] According to the working platform for roadway construction cable bolts provided by the present utility model, the length L1 of the hooked steel bar is 300 - 500 mm.

[0021] According to the working platform for roadway construction cable bolts provided by the present utility model, the bending angle β of the hook is 25° - 45°, and the length L2 of the hook is 30 - 50 mm.

[0022] The operation platform for roadway construction cable bolts provided by the utility model not only plays a role in supporting the coal wall or roadway side by laying a metal mesh on the coal wall or roadway side, but also provides an installation basis for the hook assembly, avoiding drilling holes in the coal wall or roadway side to install the hook assembly. By setting a hook assembly with a hook and a horizontal support part, it is not only convenient to disassemble from the metal mesh, but also provides an installation basis for the connecting plate. By setting a connecting plate with one end connected to the horizontal support part of the hook assembly and the other end connected to the chute, on the one hand, it can provide a standing position for construction workers, and on the other hand, it can realize the construction of the operation platform with the help of the chute, avoiding setting additional support structures in the withdrawal passage to support the connecting plate, reducing the occupation of space in the withdrawal passage by the operation platform, ensuring the construction of the operation platform in a limited space, reducing the cost of constructing the operation platform, and solving the problem that there is no special operation platform for constructing cable bolts in the withdrawal passage in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the present utility model 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 some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1 FIG. is a schematic structural diagram of the operation platform for roadway construction cable bolts provided by the present utility model.

[0025] Figure 2 FIG. is a schematic structural diagram of the hook assembly and the limit assembly of the operation platform for roadway construction cable bolts provided by the present utility model.

[0026] Reference numerals:

[0027] 100, metal mesh;

[0028] 200, hook assembly; 210, hook; 220, support structure; 230, hooked steel bar; 221, support steel bar;

[0029] 300, connecting plate;

[0030] 400, limit assembly; 410, limit space; 420, limit rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions in the present utility model will be clearly and completely described below with reference to the accompanying drawings in the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without any creative work fall within the protection scope of the present utility model.

[0032] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the embodiments of the present utility model 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. Therefore, it should not be construed as a limitation to the embodiments of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0033] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connected to" 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 directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0034] In the embodiments of the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature in terms of horizontal height. The first feature being "under", "beneath" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature in terms of horizontal height.

[0035] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0036] Currently, the single longwall mining method is commonly used in coal mining in our country. Before the working face stops mining, a withdrawal passage needs to be reserved for the withdrawal of the working face supports. In order to maintain the stability of the roof of the withdrawal passage, anchor cables need to be installed in the roof of the withdrawal passage for support. The height of the withdrawal passage is relatively large, usually exceeding 3.5 m, and it is difficult for workers to construct the anchor cables. In addition, the space of the withdrawal passage itself is small, and there is a chute behind the shearer, which occupies a large space, making it difficult to build a relatively independent working platform similar to that on the ground in the withdrawal passage. Therefore, how to build a working platform for constructing anchor cables in the withdrawal passage is an urgent problem to be solved in the industry.

[0037] To solve the above problems, the present utility model provides a working platform for constructing anchor cables in a roadway. The following combines Figure 1 and Figure 2 to make a detailed description of the structure and working principle of the working platform for constructing anchor cables in a roadway of the present utility model.

[0038] As Figure 1 and Figure 2 shown, a specific embodiment of the present utility model provides a working platform for constructing anchor cables in a roadway. The working platform for constructing anchor cables in a roadway includes a wire mesh 100, a hook assembly 200, and a connecting plate 300.

[0039] The wire mesh 100 is laid on the coal wall or roadway side; the hook assembly 200 has a hook 210 and a horizontal support portion; the hook 210 is hung on the wire mesh 100. The connecting plate 300 is horizontally arranged in the withdrawal passage along a first direction; one end of the connecting plate 300 is connected to the horizontal support portion, and the other end is used to be connected to the chute in the withdrawal passage.

[0040] It should be noted that when constructing anchor cables in the withdrawal passage, the construction personnel stand on the connecting plate 300.

[0041] In this embodiment, by laying a metal mesh 100 on the coal wall or the roadway side, it can not only play a role in supporting the coal wall or the roadway side, but also provide an installation foundation for the hook assembly 200, avoiding drilling holes in the coal wall or the roadway side to install the hook assembly 200. By providing a hook assembly 200 with a hook 210 and a horizontal support portion, it is not only convenient to disassemble from the metal mesh 100, but also provides an installation foundation for the connecting plate 300. By providing a connecting plate 300 with one end connected to the horizontal support portion of the hook assembly 200 and the other end connected to the chute, on the one hand, it can provide a standing position for construction workers, and on the other hand, it can utilize the chute to build a working platform, avoiding setting an additional support structure 220 in the withdrawal passage to support the connecting plate 300, reducing the occupation of space in the withdrawal passage by the working platform, ensuring the construction of the working platform in a limited space, reducing the cost of building the working platform, and solving the problem in the prior art that there is no dedicated working platform for constructing anchor cables in the withdrawal passage.

[0042] As Figure 1 and Figure 2 shown, in some embodiments, the hook assembly 200 includes a support structure 220 and a plurality of hooked steel bars 230. The support structure 220 has a horizontal support portion. The plurality of hooked steel bars 230 are arranged at intervals along a second direction at one end of the horizontal support portion close to the metal mesh 100. A hook 210 is formed at the upper end of the hooked steel bar 230, and the lower end of the hooked steel bar 230 is connected to the support structure 220. The second direction intersects with the first direction.

[0043] In this embodiment, by providing the hooked steel bar 230, the hook 210 and the horizontal support portion are arranged in the up-and-down direction. Specifically, the hook 210 is located above the horizontal support portion, further making it more convenient for the hook assembly 200 to be hung on the metal mesh 100. In addition, by designing hooked steel bars 230 with different lengths, the hook assembly 200 can be applied to withdrawal passages with different heights.

[0044] It should be noted that the first direction is the extending direction of the connecting plate 300, or rather, the first direction is parallel to the length direction of the connecting plate 300. The second direction is parallel to the width direction of the connecting plate 300. Specifically, in Figure 1 and Figure 2 , the first direction can be the front-back direction; the second direction can be the left-right direction.

[0045] As Figure 2 shown, further, the length L1 of the hooked steel bar 230 is 300 - 500 mm. Preferably, the length L1 of the hooked steel bar 230 is 400 mm. It can enable the working platform to be applied to withdrawal passages with different heights, avoiding the problem that when an operator stands on the connecting plate 300, it is still impossible to construct anchor cables on the top of the roadway.

[0046] As shown Figure 2 in the figure, further, the bending angle β of the hook 210 is 25° to 45°, and the length L2 of the hook 210 is 30 to 50 mm. Preferably, the bending angle β of the hook 210 is 30°, and the length L2 of the hook 210 is 40 mm. Ensure that the hook 210 can be stably hung on the wire mesh 100 to avoid the problem of the hook 210 falling off the wire mesh 100.

[0047] As shown Figure 2 in the figure, further, the hook assembly 200 includes two hooked steel bars 230; the support structure 220 includes four support steel bars 221. The support steel bars 221 are arranged horizontally and are connected end to end to form a square frame to serve as a horizontal support part; two corners of the direction frame are respectively welded to the lower ends of the two hooked steel bars 230 to improve the connection strength and reduce the risk of the square frame and the hooked steel bars 230 breaking. The hooked steel bars 230 form a first included angle α of 110° to 120° with the plane where the direction frame is located.

[0048] In this embodiment, by arranging four support steel bars 221, a square frame can be formed to serve as a horizontal support part, simplifying the support structure 220 and saving costs. By making the hooked steel bars 230 form a first included angle α of 110° to 120° with the plane where the direction frame is located, the hook assembly 200 can be further more conveniently hung on the wire mesh 100.

[0049] Further, the length L3 of the support steel bar 221 is 300 to 450 mm. Preferably, the length L3 of the support steel bar 221 is 300 mm. It can save costs and enable the connecting plate 300 to have sufficient contact area with the square frame, improving the installation stability.

[0050] Further, the diameter of the support steel bar 221 is 15 to 25 mm. Preferably, the diameter of the support steel bar 221 is 22 mm. Ensure that the working platform has sufficient strength to support the operator to move back and forth on the connecting plate 300.

[0051] As shown Figure 1 and Figure 2As shown in the figure, in a specific embodiment of the present utility model, the operation platform for roadway construction anchor cables further includes a limiting component 400. The limiting component 400 is arranged at the other end of the horizontal support part away from the wire mesh 100; the limiting component 400 is connected to the support structure 220 to form a limiting space 410; one side of the limiting space 410 away from the support structure 220 has an opening for the connecting plate 300 to enter and exit the limiting space 410, and the limiting space 410 is used to limit the connecting plate 300 in the second direction. Specifically, the limiting component 400 is arranged at the front end of the square frame, and the limiting component 400 is connected to the upper side of the front end of the square frame to form a limiting space 410 with one support steel bar 221 of the square frame; the front side of the limiting space 410 is open. The rear section of the connecting plate 300 enters the limiting space 410 from the opening and is placed on the upper side of the square frame. The limiting space 410 limits the left and right sides of the connecting plate 300 to prevent the connecting plate 300 from moving left and right and avoid the connecting plate 300 slipping off the square frame from the left and right sides of the square frame.

[0052] Furthermore, the limiting component 400 includes two limiting rods 420. The two limiting rods 420 are arranged at intervals in the second direction at the other end of the horizontal support part away from the wire mesh 100; one end of the limiting rod 420 is connected to the support structure 220, and the other end extends obliquely upward in the first direction. The two limiting rods 420 and the support structure 220 form a limiting space 410. Specifically, the two limiting rods 420 are respectively arranged at the left corner and the right corner of the front end of the square frame, and one end of the limiting rod 420 is connected to the support steel bar 221 of the square frame, and the other end of the limiting rod 420 extends obliquely upward. In this way, a limiting space 410 is formed between the two limiting rods 420 and the support steel bar 221 at the front end, and the front side of the limiting space 410 is open. The left and right limits of the connecting plate 300 are realized by using the two limiting rods 420, which simplifies the structure of the operation platform and reduces the cost of the operation platform.

[0053] Furthermore, the length L4 of the limiting rod 420 is 100 - 150 mm; the limiting rod 420 forms a third included angle γ of 20° - 50° with the plane where the horizontal support part is located. Preferably, the length L4 of the limiting rod 420 is 100 mm; the limiting rod 420 forms a third included angle γ of 45° with the plane where the horizontal support part is located. Ensure that the limiting rod 420 can play a role in limiting the connecting plate 300 left and right. If the limiting rod 420 is too short, or the third included angle γ is too small, the left and right limiting effect of the limiting component 400 on the connecting plate 300 is limited, and there is still a relatively high risk that the connecting plate 300 slides from the left or right side of the square frame under the operating conditions. If the limiting rod 420 is too long, it wastes materials and increases costs. If the third included angle γ is too large, it increases the processing cost.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A working platform for anchor cables in tunnel construction, characterized in that: include: The metal mesh (100) is laid on the coal wall or the side of the tunnel; A hook assembly (200) comprising a hook (210) and a horizontal support portion; the hook (210) is hung on the metal mesh (100); A connecting plate (300) is horizontally arranged in the withdrawal channel along a first direction; one end of the connecting plate (300) is connected to the horizontal support portion, and the other end is used to be connected to the chute of the withdrawal channel.

2. The working platform for anchor cables in tunnel construction according to claim 1, characterized in that: The hook assembly (200) comprises: A support structure (220) having the horizontal support portion; A plurality of hooked steel bars (230), wherein the plurality of hooked steel bars (230) are arranged at intervals along a second direction at one end of the horizontal support portion close to the metal mesh (100), the hook (210) being formed at the upper end of the hooked steel bars (230), the lower end of the hooked steel bars (230) being connected to the support structure (220), and the second direction intersects with the first direction.

3. The working platform for anchor cables in tunnel construction according to claim 2, characterized in that: Also includes: A limiting assembly (400) is arranged at one end of the horizontal support portion away from the metal mesh (100); the limiting assembly (400) is connected to the support structure (220) to form a limiting space (410); a side of the limiting space (410) away from the support structure (220) has an opening, the opening is used for the connecting plate (300) to enter and exit the limiting space (410), and the limiting space (410) is used to limit the connecting plate (300) along the second direction.

4. The working platform for anchor cables in tunnel construction according to claim 3, characterized in that: The limiting assembly (400) comprises: Two limiting rods (420), the two limiting rods (420) are arranged at intervals along the second direction at the other end of the horizontal support portion away from the metal mesh (100); one end of the limiting rod (420) is connected to the support structure (220), and the other end extends obliquely upward along the first direction, and the two limiting rods (420) and the support structure (220) form the limiting space (410).

5. The working platform for anchor cables in tunnel construction according to claim 4, characterized in that: The length L4 of the limiting rod (420) is 100-150 mm; the limiting rod (420) and the plane where the horizontal support portion is located form a third angle γ of 20°-50°.

6. The anchor cable working platform for tunnel construction according to any one of claims 2 to 5, characterized in that: The hook assembly (200) comprises two hooked steel bars (230); the support structure (220) comprises: Four supporting steel bars (221), the supporting steel bars (221) are arranged horizontally and connected end to end to form a square frame, the square frame being the horizontal supporting portion; two corners of the square frame are respectively welded to the lower ends of two hooked steel bars (230); the hooked steel bars (230) and the plane where the square frame is located form a first angle α of 110° to 120°.

7. The working platform for anchor cables in tunnel construction according to claim 6, characterized in that: The length L3 of the supporting steel bar (221) is 300-450 mm.

8. The working platform for anchor cables in tunnel construction according to claim 7, characterized in that: The diameter of the supporting steel bar (221) is 15-25 mm.

9. The working platform for anchor cables in tunnel construction according to claim 8, characterized in that: The length L1 of the hooked steel bar (230) is 300-500 mm.

10. The working platform for anchor cables in tunnel construction according to claim 9, characterized in that: The bending angle β of the hook (210) is 25° to 45°, and the length L2 of the hook (210) is 30 to 50 mm.

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