Connecting anchor net

Abstract

The utility model relates to a connecting anchor net. The connecting anchor net comprises an anchor rod, a tray is fixed at the bottom of the anchor rod, the connecting anchor net further comprises a net piece, the net piece is formed by connecting a plurality of transverse rods and longitudinal rods, a distance is reserved between every two adjacent transverse rods, a distance is reserved between every two adjacent longitudinal rods, and the distances are equal; wherein the transverse rods and the longitudinal rods are interwoven to form a plurality of square meshes, the ends of the transverse rods and the ends of the longitudinal rods are bent upwards by 90 degrees to form bent ribs, and the bent ribs are bent by buckling the bent ribs of the previous mesh into the meshes of the next mesh, so that the two meshes are connected. The ends of the transverse rods and the ends of the longitudinal rods are bent upwards by 90 degrees to form the bent ribs, the bent ribs of the previous mesh are buckled into the mesh holes of the next mesh, the bent ribs are bent so that the two meshes can be connected, and due to the fact that the joints of the two meshes are rapidly buckled through the reserved bent ribs, anchor rods do not need to be repeatedly constructed, and the connecting speed is increased.

Description

Technical Field

[0001] The present application relates to the technical field of sidewall support for underground metal mines and shaft and tunnel engineering, and in particular to a connecting anchor net. Background Art

[0002] The traditional mesh is a square or rectangular mesh with a certain grid spacing and closed on all sides, which is welded from round steel. Anchor rods are used to anchor it to the surrounding rock during support.

[0003] During the discontinuous construction process, when two meshes are connected, the mesh of the previous shift is first anchored with anchor rods. When the next shift continues to support downward along the mesh of the previous shift, the mesh needs to be re-anchored to the connecting mesh of the previous mesh. This will cause the connection between the two meshes to be repeatedly anchored, slowing down the connection speed. Utility Model Content

[0004] In order to solve or partially solve the problems existing in the related art, the present application provides a connecting anchor network.

[0005] To achieve the above objectives, this application is implemented through the following technical solutions:

[0006] A connecting anchor net includes an anchor rod, a tray is fixed to the bottom of the anchor rod, and the connecting anchor net also includes:

[0007] The mesh is formed by connecting a plurality of horizontal bars and vertical bars, and there is a spacing between adjacent horizontal bars and adjacent vertical bars, and the spacing between the two is equal;

[0008] Among them, a number of horizontal bars and vertical bars are interwoven to form a number of square meshes, and the ends of the horizontal bars and vertical bars are bent upward at 90 degrees to form folded ribs. The folded ribs of the previous mesh are buckled into the meshes of the next mesh to bend the folded ribs so as to connect the two meshes.

[0009] Optionally, the connecting anchor net further comprises a bending tool, and the bending tool comprises:

[0010] A connecting rod, one end of which is provided with a first bending head, and the first bending head is provided with a U-shaped bending groove matching the folding rib.

[0011] Optionally, a second bending head is provided at the other end of the connecting rod, and a bending hole matching the folding rib is formed on the second bending head.

[0012] Optionally, the cross bar and the longitudinal bar are made of round steel with a specification of φ8mm.

[0013] Optionally, the length of the straight part of the cross bar and the longitudinal bar is 1140 mm, and the height of the folding rib is 60 mm.

[0014] Optionally, the mesh size is 100 mm×100 mm.

[0015] Optionally, the length of the connecting rod is 200 mm, and the lengths of the first bending head and the second bending head are 65 mm and 45 mm respectively.

[0016] The beneficial effects of the present application are as follows: the present application forms folded ribs by bending the ends of the horizontal bar and the longitudinal bar upwards by 90°, and buckling the folded ribs of the previous mesh into the mesh holes of the subsequent mesh, so as to bend the folded ribs to connect the two meshes. Since the connection between the two meshes is quickly buckled through the reserved folded ribs, there is no need to repeatedly construct anchor rods, thereby speeding up the connection.

[0017] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0019] Figure 1 is a top view of the connecting anchor net shown in the embodiment of the present application;

[0020] Figure 2 is a front view of the connecting anchor net shown in the embodiment of the present application;

[0021] Figure 3 is a side view of a connecting anchor net shown in an embodiment of the present application;

[0022] Figure 4 is a schematic diagram of connecting two adjacent meshes shown in an embodiment of the present application;

[0023] Figure 5 is a schematic diagram of a folding rib when it is bent as shown in an embodiment of the present application;

[0024] Figure 6 It is a schematic diagram of the structure of the bending tool shown in the embodiment of the present application.

[0025] Figure numerals: 1 anchor rod, 2 tray, 3 mesh, 4 cross bar, 5 longitudinal bar, 6 folding ribs, 7 bending tool, 8 connecting rod, 9 first bending head, 10 second bending head, 11 U-shaped bending groove, 12 bending hole. DETAILED DESCRIPTION

[0026] 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.

[0027] 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.

[0028] 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 the specific situation.

[0029] 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.

[0030] 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 specific features, structures, materials or characteristics described 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, unless they are contradictory.

[0031] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

[0032] The above description is only an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

[0033] In order to make the purpose, technical solutions and beneficial effects of the present application clearer, the preferred embodiments of the present application will be described in detail below in conjunction with the accompanying drawings to facilitate understanding by technical personnel.

[0034] Embodiment 1:

[0035] See also Figure 1 , Figure 2 and Figure 3 A connecting anchor net includes an anchor rod 1, a tray 2 is fixed to the bottom of the anchor rod 1, and the connecting anchor net also includes:

[0036] The mesh 3 is formed by connecting a plurality of cross bars 4 and longitudinal bars 5, and there is a spacing between adjacent cross bars 4 and adjacent longitudinal bars 5, and the spacing between the two is equal;

[0037] Among them, a number of cross bars 4 and longitudinal bars 5 are interwoven to form a number of square meshes, and the ends of the cross bars 4 and longitudinal bars 5 are bent upward at 90° to form folded ribs 6. The folded ribs 6 of the previous mesh 3 are buckled into the meshes of the next mesh 3 to bend the folded ribs 6 so that the two meshes 3 are connected.

[0038] Specifically, a plurality of cross bars 4 and longitudinal bars 5 are fixed by welding, the spacing between two adjacent cross bars 4 is 100 mm, and the spacing between two adjacent longitudinal bars 5 is also 100 mm. One end of each cross bar 4 and longitudinal bar 5 is bent upward at 90° to form a plurality of folded ribs 6. In this embodiment, 12 cross bars 4 and 12 longitudinal bars 5 are provided respectively, and correspondingly, 24 folded ribs 6 are formed.

[0039] See also Figure 4 and Figure 5 When supporting, first use the YT-28 or 7655 air-leg rock drill to drill holes with a drilling spacing of 1.0m, then insert the anchor rod 1 into the uppermost mesh hole a on the side of the previous mesh 3 without the folded reinforcement 6, and then push the rock drill to anchor the mesh 3 into the first drill hole, and then align the lowermost mesh hole b of the mesh 3 with the second drill hole to construct the second anchor rod 1, thereby completing the anchoring of the previous mesh 3; when constructing the next mesh 3, it is also necessary to construct a drill hole first, which is aligned with the previous mesh 3 The spacing between the two holes is 1.0m, and then the end of the rear mesh 3 without the folded reinforcement 6 is buckled onto the end of the folded reinforcement 6 of the first mesh 3. The auxiliary worker holds the rear mesh 3, and the driller first anchors the anchor rod 1 into the top mesh a of the first row of the rear mesh 3, and then anchors it into the bottom mesh b, thereby realizing the anchoring and compacting of the two meshes 3; after buckling the folded reinforcement 6 of the previous mesh 3 into the mesh holes of the rear mesh 3, the folded reinforcement 6 is bent, thereby realizing the efficient and stable connection of the two meshes 3.

[0040] In this embodiment, the ends of the cross bar 4 and the longitudinal bar 5 are bent upward at 90 degrees to form a folded rib 6, and the folded rib 6 of the previous mesh 3 is buckled into the mesh of the next mesh 3, so that the folded rib 6 is bent to connect the two meshes 3. Since the connection between the two meshes 3 is quickly buckled through the reserved folded rib 6, there is no need to repeatedly construct the anchor rod 1, thereby speeding up the connection speed;

[0041] In addition, compared with ordinary anchor nets, the connecting anchor net of the present application reduces the number of anchor rod overlaps used during discontinuous construction, especially during short excavation and short support. On average, 4 pipe seam anchor rods can be saved for every 3 meters, that is, 1.33 anchor rods can be saved per meter. Calculated at 40 yuan per anchor rod, the average support cost can be saved by 53.33 yuan per meter.

[0042] At the same time, when ordinary anchor nets are overlapped, the anchor net must be passed through the anchor rod in advance, and then pressed onto the previous anchor net together with the anchor net, which is not convenient for construction. Moreover, after the anchor net passes through the anchor rod, the position of the anchor net changes constantly with the anchor rod during the anchoring process and there is a certain shaking, which requires auxiliary workers to constantly follow up to help stabilize the anchor net, which increases the labor intensity and has certain safety hazards. Compared with ordinary anchor nets, the connecting anchor net of the present application can be convenient for the next step of buckling due to the addition of folding bars 6, and due to the support of folding bars 6, the mesh 3 can be easily stabilized after buckling, which greatly reduces the labor intensity, and the drilling workers do not need to construct anchor rods with anchor nets, which greatly improves the construction efficiency and operation safety.

[0043] It should be noted that the anchor rod 1 and the tray 2 are existing technologies, and their working principles are: by applying a certain torque to the nut, the tray 2 is pressed against the tunnel surface, providing a preload force to the anchor rod 1, and diffusing the preload force into the rock mass around the anchor rod 1, thereby improving the stress state of the surrounding rock, inhibiting surrounding rock delamination, structural surface sliding and the opening of joints and fissures, and realizing the active and timely support function of the anchor rod 1.

[0044] Embodiment 2:

[0045] See also Figure 6 Based on the first embodiment, further and optionally, the connecting anchor net further comprises a bending tool 7, and the bending tool 7 comprises:

[0046] The connecting rod 8 has a first bending head 9 at one end thereof, and a U-shaped bending groove 11 matching the folding rib 6 is formed on the first bending head 9 .

[0047] Specifically, one end of the connecting rod 8 is fixed to one end of the first bending head 9 by welding. The width and depth of the U-shaped bending groove 11 should be greater than the diameter of the folding rib 6. When in use, the folding rib 6 is embedded in the U-shaped bending groove 11, and the end of the connecting rod 8 away from the first bending head 9 is held. The folding rib 6 is bent by the lever principle, so that the two meshes 3 are connected and fixed. Figure 5 shown.

[0048] Further and optionally, a second bending head 10 is provided at the other end of the connecting rod 8 , and a bending hole 12 matching the folding rib 6 is opened on the second bending head 10 .

[0049] Specifically, the other end of the connecting rod 8 is fixed to one end of the second bending head 10 by welding, and the aperture of the bending hole 12 should not be less than the diameter of the folding rib 6 so that the folding rib 6 can be inserted into the bending hole 12. When in use, the folding rib 6 is inserted into the bending hole 12, and the end of the connecting rod 8 away from the second bending head 10 is held, and the folding rib 6 is bent by the lever principle, so that the two meshes 3 are connected and fixed. Figure 5 shown.

[0050] In this embodiment, whether the first bending head 9 or the second bending head 10 is used, the bending of the folding rib 6 can be achieved.

[0051] Further and optionally, the cross bar 4 and the longitudinal bar 5 are made of round steel with a specification of φ8mm.

[0052] Specifically, round steel has high strength and load-bearing capacity after hot rolling or cold drawing, and can withstand large loads and stresses; round steel has good plasticity and can be bent, straightened and other processing, and can easily adapt to the needs of various shapes; round steel has good corrosion resistance after rust prevention treatment and can be used in some corrosive environments; round steel is relatively easy to cut, grind, drill and other processing, and the processing cost is low;

[0053] In this embodiment, the round steel with a diameter of φ8mm can meet the support strength requirements.

[0054] Further and optionally, the length of the straight part of the cross bar 4 and the longitudinal bar 5 is 1140 mm, and the height of the folding rib 6 is 60 mm.

[0055] Specifically, the lengths of the cross bar 4 and the longitudinal bar 5 are selected according to the specific working environment. In the present embodiment, the lengths of the straight parts of the cross bar 4 and the longitudinal bar 5 are set to 1140 mm to meet the support strength requirements; the height of the folding rib 6 is set to 60 mm to facilitate its insertion into the first bending head 9 or the second bending head 10 for bending, and the length of the buckle meets the requirements.

[0056] Further and optionally, the mesh size is 100 mm×100 mm.

[0057] Specifically, the spacing between two adjacent horizontal bars 4 is 100 mm, and the spacing between two adjacent longitudinal bars 5 is also 100 mm, so that the size of the formed mesh is 100 mm×100 mm.

[0058] Further and optionally, the length of the connecting rod 8 is 200 mm, and the lengths of the first bending head 9 and the second bending head 10 are 65 mm and 45 mm respectively.

[0059] Specifically, the lengths of the connecting rod 8, the first bending head 9 and the second bending head 10 are selected according to the specific working environment. In the present embodiment, the length of the connecting rod 8 is selected to be 200 mm. The connecting rod 8 is a labor-saving lever, which can adapt to the working space while ensuring labor-saving.

[0060] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of the present application rather than to limit it. Although the present application has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present application; the dimensions of the drawings are not related to the specific objects, and the dimensions of the objects can be changed arbitrarily.

Claims

1. A connecting anchor net, comprising an anchor rod (1), a tray (2) being fixed at the bottom of the anchor rod (1), characterized in that: The connecting anchor net also includes: The mesh (3) is formed by connecting a plurality of cross bars (4) and longitudinal bars (5), and there is a spacing between adjacent cross bars (4) and between adjacent longitudinal bars (5), and the spacing between the two is equal; A plurality of transverse bars (4) and longitudinal bars (5) are interwoven to form a plurality of square meshes, and the ends of the transverse bars (4) and longitudinal bars (5) are bent upward at 90 degrees to form folded ribs (6). The folded ribs (6) of the preceding mesh sheet (3) are buckled into the meshes of the following mesh sheet (3), so that the folded ribs (6) are bent, thereby connecting the two mesh sheets (3).

2. The connecting anchor net according to claim 1, characterized in that: The invention also comprises a bending tool (7), wherein the bending tool (7) comprises: A connecting rod (8) is provided at one end of the connecting rod (8) with a first bending head (9), and a U-shaped bending groove (11) matching the folding rib (6) is provided on the first bending head (9).

3. The connecting anchor net according to claim 2, characterized in that: The other end of the connecting rod (8) is provided with a second bending head (10), and the second bending head (10) is provided with a bending hole (12) matching the folding rib (6).

4. The connecting anchor net according to claim 1, characterized in that: The cross bar (4) and the longitudinal bar (5) are made of round steel with a specification of φ8mm.

5. The connecting anchor net according to claim 1, characterized in that: The length of the straight part of the cross bar (4) and the longitudinal bar (5) is 1140 mm, and the height of the folded rib (6) is 60 mm.

6. The connecting anchor net according to claim 1, characterized in that: The mesh size is 100 mm×100 mm.

7. The connecting anchor net according to claim 2, characterized in that: The length of the connecting rod (8) is 200 mm, and the lengths of the first bending head (9) and the second bending head (10) are 65 mm and 45 mm respectively.

Images