A reinforcing mesh fixing device

Abstract

The utility model discloses a reinforcing mesh fixing device belongs to reinforcing mesh fixing device technical field, solve the fixed mode of the fixing of stirrup fixed multilayer reinforcing mesh, and the spacing between the adjacent two layers reinforcing mesh and the spacing between the horizontal adjacent two reinforcing bars are easy to cause the problem of mesh deformation or / and spacing difference because of the different stirrup bending degree, and the utility model discloses a cross type card piece A with the cross type groove that cooperates with the intersection of the reinforcing mesh of lower layer, one end with cross type card piece A swing fixed cooperation, the other end with the cross type groove of cross type card piece B that cooperates with the intersection of the reinforcing mesh of upper layer, and another cross type card piece B or fixing piece with the cross type groove of cross type card piece B cooperation, the utility model discloses be used for the fixing of reinforcing mesh.

Description

TECHNICAL FIELD

[0001] A reinforcing mesh fixing device for fixing reinforcing mesh, belongs to the technical field of reinforcing mesh fixing device. BACKGROUND

[0002] So far, many large water conservancy and hydropower projects are located in high mountain and canyon areas with very complex geological conditions. The mountain altitude is high, the terrain is complex, the surrounding rock self-stability is poor, and there are unfavorable geological conditions such as fault fracture zone. When the deep buried tunnel is excavated, it is extremely likely to cause rock burst, collapse, large deformation and other geological disasters due to the influence of surrounding rock stress change. After excavation, plastic deformation may occur, and local collapse and plastic damage may occur in initial support. Therefore, the stability of the jointed rock mass around the tunnel after excavation and support and the support structure in the fault fracture zone large cross-section diversion tunnel is a problem that must be considered in engineering.

[0003] According to the basic starting point of designing tunnel support system according to modern rock mass mechanics principle, the tunnel structure is composed of surrounding rock and support structure. The surrounding rock is the main body of the bearing structure, and the support structure plays a supporting role for the surrounding rock. However, it is also essential in some cases, and the support structure is also the main bearing unit. Therefore, after the tunnel is excavated, the initial spray anchor support should be constructed in time to protect and strengthen the strength and self-stability of the surrounding rock. When the surrounding rock and the initial support system gradually stabilize, the secondary lining is adopted to ensure the permanent stability and safety of the tunnel. The initial support and the secondary lining constitute the composite support of the tunnel. Steel mesh is used in the initial support and the secondary lining, especially in the initial support, multi-layer steel mesh is used. However, the existing technology has the following technical problems:

[0004] 1. The fixing method of the existing technology uses stirrups to fix the multi-layer steel mesh, which has low fixing efficiency, and the spacing between the adjacent two layers of steel mesh and the spacing between the horizontal adjacent two steel bars are easy to cause deformation of the mesh and / or different spacing due to different bending degrees of the stirrups.

[0005] 2. The two groups of steel mesh are not easy to butt joint or have different heights after butt joint. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims at providing a reinforcing mesh fixing device, which solves the problem of low fixing efficiency of the fixing method of the existing technology, and the problem of easy deformation of the mesh and / or different spacing between the adjacent two layers of steel mesh and the horizontal adjacent two steel bars due to different bending degrees of the stirrups.

[0007] In order to achieve the above purpose, the utility model adopts the technical scheme that:

[0008] A reinforcing mesh fixing device, comprising a cross-shaped slot A matched with the intersection of the lower reinforcing mesh, a cross-shaped slot B with one end movably fixed matched with the cross-shaped slot A and the other end matched with the intersection of the upper reinforcing mesh, and another cross-shaped slot B or a fixing part matched with the cross-shaped slot of the cross-shaped slot B.

[0009] Further, the cross-shaped slot A is matched with the cross-shaped slot B, the cross-shaped slot B and the fixing part are matched with threads or clamping.

[0010] Further, the cross-shaped slot B at the butt joint position of the two groups of reinforcing meshes is provided with a butt joint threaded hole, and the axis of the butt joint threaded hole is perpendicular to the axis of the cross-shaped slot B.

[0011] Further, the cross-shaped slot B at the butt joint position of the two groups of reinforcing meshes is provided with a butt joint threaded hole, and the axis of the butt joint threaded hole is perpendicular to the axis of the cross-shaped slot B.

[0012] Further, the cross-shaped slot B comprises a connecting part A matched with the cross-shaped slot A or another cross-shaped slot B from bottom to top in sequence, a connecting part B matched with the connecting part A, and a connecting part C with a cross-shaped slot matched with the connecting part B.

[0013] The butt joint threaded hole is arranged on the connecting part B.

[0014] Further, the fixing part is a nut or a threaded cover, and a rotating rod is arranged on the threaded cover.

[0015] Further, when the fixing part is the nut, the side surface of the nut is provided with a insertion hole A, and an L-shaped pouring mark rod is movably arranged in the insertion hole A; or when the fixing part is the threaded cover, the threaded cover is provided with an insertion hole B, and a one-word pouring mark rod is movably arranged in the insertion hole B.

[0016] Compared with the prior art, the advantages of the utility model are as follows:

[0017] Firstly, the cross-shaped slot A is matched with the cross-shaped slot B to match the lower reinforcing mesh, and the cross-shaped slot B is matched with another cross-shaped slot B or a fixing part to match the upper reinforcing mesh, so that the fixing efficiency is high, and the distance between the adjacent two layers of reinforcing meshes and the distance between the horizontally adjacent two reinforcing meshes can be effectively ensured, so that the strength of the multi-layer reinforcing meshes in each area is the same.

[0018] Secondly, the cross-shaped slot A is matched with the cross-shaped slot B, the cross-shaped slot B and the fixing part are matched with threads or clamping, so that the application can be selected according to the actual demand.

[0019] 3. The present invention provides a threaded hole on the cross-shaped clip B located at the joint position of the two sets of steel mesh, so as to facilitate the use of the threaded connecting rod to cooperate with the corresponding threaded hole, so as to realize the rapid initial joint of the two sets of steel mesh, so as to ensure the uniform height after joint and subsequent further fixing operations.

[0020] IV. The cross-shaped clamp B in this utility model includes connector A, connector B and connector C arranged sequentially from bottom to top. The mating threaded hole on the cross-shaped clamp B, which is located at the joint position of the two sets of steel mesh, is set on the connector B. This makes it easier to increase the fixing sequence of the cross-shaped clamp B and the upper and lower layers of steel mesh, that is, to increase the matching methods. It also makes it easier to increase the connection method between the threaded connecting rod and the cross-shaped clamp B, and to make it easier to select the most suitable fixing method according to the needs.

[0021] V. The fastener in this utility model can be selected from nuts and threaded caps with rotating rods as needed. When it is a threaded cap, the threaded cap can be rotated by rotating rod without the need for additional rotating and fixing tools.

[0022] VI. This utility model provides a hole A on the nut, with an L-shaped pouring mark rod inside the hole A, or a hole B on the threaded cap, with a straight pouring mark rod inside the hole B. This facilitates the limitation of the pouring thickness based on the L-shaped or straight pouring mark rod, and also allows pouring personnel to visually observe the current pouring thickness. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram showing how a nut, as the fixing component in this utility model, connects to another structure via a threaded connecting rod.

[0025] Figure 2 This is a schematic diagram showing how a threaded cap, which is a fastener in this utility model, connects to another structure via a threaded connecting rod.

[0026] Figure 3 This is a structural diagram of the present invention when the fixing component is a nut;

[0027] Figure 4 for Figure 3 Partial structural diagram;

[0028] Figure 5This is a schematic diagram of the structure of the nut with insertion hole A in this utility model;

[0029] Figure 6 This is a schematic diagram of the structure of the threaded cap with insertion hole B in this utility model.

[0030] In the diagram: 1-Cross-shaped clamp A, 2-Cross-shaped clamp B, 3-Threaded hole, 4-Threaded connecting rod, 5-Connector A, 6-Connector B, 7-Connector C, 8-Nut, 9-Threaded cap, 10-Rotating rod, 11-Socket A, 12-L-shaped pouring mark rod, 13-Socket B, 14-Straight pouring mark rod. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0033] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0034] Furthermore, the terms "first," "second," and "third" are used only for distinguishing descriptions and should not be interpreted as indicating or implying relative importance.

[0035] Furthermore, the use of terms such as "horizontal," "vertical," and "suspended" does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0036] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0038] Example 1

[0039] To address the problems of low fixing efficiency and inconsistent spacing between adjacent layers of steel mesh caused by varying degrees of stirrup bending, the use of stirrups for fixing multi-layer steel mesh is recommended. Figure 1 , 2 As shown, a steel mesh fixing device is provided, including a cross-shaped clamp A1 with a cross-shaped groove that mates with the intersection of the lower layer of steel mesh, a cross-shaped clamp B2 with a cross-shaped groove that is movably fixed with the cross-shaped clamp A1 at one end and mates with the intersection of the upper layer of steel mesh at the other end, and another cross-shaped clamp B2 or fixing member that mates with the cross-shaped groove of the cross-shaped clamp B2.

[0040] In practice, at the intersection of the reinforcing bars in the lower layer of the steel mesh (which can be two movable reinforcing bars), the two reinforcing bars are sequentially placed into the cross-shaped groove of the cross-shaped clamp A1. Then, the cross-shaped clamp B2 is fixed to the cross-shaped clamp A1 to fix the lower layer of the steel mesh between the cross-shaped clamp A1 and the cross-shaped clamp B2. After fixing, the intersection of the reinforcing bars in the upper layer of the steel mesh is sequentially placed into the cross-shaped groove of the cross-shaped clamp B2. Then, another cross-shaped clamp B2 is fixed to the cross-shaped clamp B2 (in this case, a third layer of steel mesh needs to be set) or the fastener is fixed to the cross-shaped clamp B2. In this embodiment, cross-shaped clip A and cross-shaped clip B are used to engage with the lower layer of reinforcing mesh. Then, cross-shaped clip B is used to engage with another cross-shaped clip B or a fastener to engage with the upper layer of reinforcing mesh. This method has high fixing efficiency and can effectively ensure the spacing between adjacent layers of reinforcing mesh and the spacing between horizontally adjacent reinforcing bars, so that the strength of the multi-layer reinforcing mesh in each area is the same.

[0041] Example 2

[0042] Based on Embodiment 1, the cross-shaped clamp A1 and cross-shaped clamp B2, two pairs of cross-shaped clamps B2, and cross-shaped clamps B2 and the fixing component are threadedly engaged (not shown in the figure since the thread structure is existing) or engaged by locking mechanisms, such as by setting a locking groove or locking block. The cross-shaped clamp A and cross-shaped clamp B, two pairs of cross-shaped clamps B, and cross-shaped clamps B are threadedly engaged or engaged by locking mechanisms with the fixing component, which facilitates selection according to actual needs.

[0043] Example 3

[0044] Based on Embodiment 2, a threaded hole 3 is provided on the cross-shaped clamp B2 located at the joint position of the two sets of steel mesh (considering that jointing is not required at other positions, the threaded hole 3 can be provided only on the cross-shaped clamp B2 located at the joint position of the two sets of steel mesh). The axis of the threaded hole 3 is perpendicular to the axis of the cross-shaped clamp B2. It also includes a threaded connecting rod 4 that mates with the threaded hole 3. In practice, after the two sets of steel mesh are fixed, the threaded connecting rod 4 can be rotated into the threaded hole 3 on the corresponding set of cross-shaped clamps B2 to achieve quick jointing. Therefore, in this embodiment, a threaded hole is provided on the cross-shaped clamp B located at the joint position of the two sets of steel mesh to facilitate the use of the threaded connecting rod to mate with the corresponding threaded hole, so as to achieve quick preliminary jointing of the two sets of steel mesh, so as to ensure uniform height after jointing and subsequent further fixing operations.

[0045] Example 4

[0046] Based on embodiment 3, the cross-shaped clamp B2 includes, from bottom to top, a connector A5 that is threadedly engaged with the cross-shaped clamp A1 or another cross-shaped clamp B2, a connector B6 that is threadedly engaged with the connector A5, and a connector C7 with a cross-shaped groove that is threadedly engaged with the connector B6; the mating threaded hole 3 is provided on the connector B6.

[0047] In practice, connector A5 is first fixed to cross-shaped clamp A1, and then connector C7 is fixed to the fixing piece or another connector A5. During fixing, the corresponding layer of reinforcing bars must be placed in the corresponding cross-shaped groove. After fixing, connector B6 is used to connect connector A5 and connector C7. The cross-shaped clamp B2 located at the joint position of the two sets of reinforcing mesh is then connected by threaded connecting rod 4. In practice, other methods can also be used to fix the components.

[0048] In this practice, the cross-shaped clamp B includes connectors A, B, and C arranged sequentially from bottom to top. The threaded holes on the cross-shaped clamp B, located at the joint position of the two sets of steel mesh, are set on the connectors B. This facilitates increasing the fixing sequence of the cross-shaped clamp B with the upper and lower layers of steel mesh, thus increasing the number of mating methods. It also facilitates increasing the connection method between the threaded connecting rod and the cross-shaped clamp B, making it easier to select the most suitable fixing method according to the current needs.

[0049] Example 5

[0050] Based on embodiment 4, the fixing component is either a nut 8 or a threaded cap 9, and a rotating rod 10 is provided on the threaded cap 9. The fixing component can be a nut or a threaded cap with a rotating rod, depending on the requirements. When it is a threaded cap, the threaded cap can be rotated by the rotating rod without the need for additional rotation fixing tools.

[0051] Example 6

[0052] Based on Example 5, when the fixing component is a nut 8, a socket A11 is provided on the side of the nut 8, and an L-shaped pouring mark rod 12 is movably installed in the socket A11; or when the fixing component is a threaded cap 9, a socket B13 is provided on the threaded cap 9, and a straight pouring mark rod 14 is movably installed in the socket B13. By providing a socket A on the nut and setting an L-shaped pouring mark rod in the socket A, or by providing a socket B on the threaded cap and setting a straight pouring mark rod in the socket B, it is convenient to limit the pouring thickness according to the L-shaped pouring mark rod or the straight pouring mark rod, and it is also convenient for the pouring personnel to intuitively observe the current pouring thickness. In practice, after covering the L-shaped pouring mark rod or the straight pouring mark rod, the concrete pouring personnel can stop pouring to achieve a basically the same pouring thickness at each position.

Claims

1. A steel mesh fixing device, characterized in that: It includes a cross-shaped clip A (1) with a cross-shaped groove that mates with the intersection of the lower layer of steel mesh, a cross-shaped clip B (2) with a cross-shaped groove that is movably fixed with the cross-shaped clip A (1) at one end and mates with the intersection of the upper layer of steel mesh at the other end, and another cross-shaped clip B (2) or fastener that mates with the cross-shaped groove of the cross-shaped clip B (2).

2. The steel mesh fixing device according to claim 1, characterized in that: The cross-shaped fastener A (1) and cross-shaped fastener B (2), and the two cross-shaped fasteners B (2) and the cross-shaped fastener B (2) are threaded or clamped together with the fastener.

3. The steel mesh fixing device according to claim 2, characterized in that: A threaded hole (3) is provided on the cross-shaped clamp B (2) located at the joint position of the two sets of steel mesh, and the axis of the threaded hole (3) is perpendicular to the axis of the cross-shaped clamp B (2); It also includes a threaded connecting rod (4) that mates with the threaded hole (3).

4. The steel mesh fixing device according to claim 3, characterized in that: The cross-shaped fastener B (2) includes, from bottom to top, a connector A (5) that is threadedly engaged with the cross-shaped fastener A (1) or another cross-shaped fastener B (2), a connector B (6) that is threadedly engaged with the connector A (5), and a connector C (7) with a cross-shaped groove that is threadedly engaged with the connector B (6). The threaded hole (3) is provided on the connector B (6).

5. A steel mesh fixing device according to claim 4, characterized in that: The fastener is a nut (8) or a threaded cap (9), and a rotating rod (10) is provided on the threaded cap (9).

6. A steel mesh fixing device according to claim 5, characterized in that: When the fastener is a nut (8), a socket A (11) is provided on the side of the nut (8), and an L-shaped casting mark rod (12) is movably provided in the socket A (11); or when the fastener is a threaded cap (9), a socket B (13) is provided on the threaded cap (9), and a straight casting mark rod (14) is movably provided in the socket B (13).

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