Anchorage device fixing device

Abstract

The embodiment of the utility model provides an anchorage device fixing device which comprises an anchoring tray and an anchorage device block, and the anchoring tray comprises a tray body and a limiting groove formed in the tray body; the anchorage device block is used for being in butt joint with the anchoring tray, a protruding clamping head is constructed at the end of the side, facing the anchoring tray, of the anchorage device block, and the clamping head is used for being in matched clamping connection with the limiting groove; the anchoring tray is provided with a first through hole, the anchorage device block is provided with a second through hole, and the first through hole and the second through hole are communicated so that an anchor cable can penetrate through the first through hole and the second through hole. The side, facing the first penetrating hole, of the second penetrating hole is provided with an opening part gradually expanding outwards, and the inner diameter of the opening part is larger than that of the first penetrating hole. According to the anchorage device fixing device provided by the embodiment of the invention, the anchorage device block and the anchoring tray can be quickly mounted, and the problem of local stress concentration caused by deviation of the anchor cable in the anchorage device can be avoided.

Description

Technical Field

[0001] This application relates to anchorage technology, and more particularly to an anchorage fixing device. Background Technology

[0002] In the field of geotechnical engineering and structural support, anchor cables are key load-bearing components, and the reliability of their anchoring devices directly affects the safety of the project.

[0003] In practice, due to the natural conditions of the roof or sidewalls of mine roadways, it is difficult for the working face of the rock strata where anchor cables are installed to be a plane. Therefore, when conventional anchor cables are installed, it is difficult for the ordinary tray and the reserved channel to form a perpendicular relationship. Under such conditions, tensioning the anchor cable will cause the anchor cable to bend, resulting in a large loss of stress transmission. In severe cases, it will cause shear stress between the tray and the anchor cable, which can easily lead to the risk of anchor cable breakage. Utility Model Content

[0004] This application provides an anchor fixing device to solve the technical problem in the related art that anchor cables are prone to shear stress with anchors.

[0005] This application provides an anchor fixing device, including:

[0006] An anchoring tray, comprising a tray body and a limiting groove formed on the tray body;

[0007] An anchor block for docking with the anchoring tray, wherein the anchor block has a protruding locking head on one end facing the anchoring tray, the locking head for engaging with the limiting groove;

[0008] The anchoring tray is provided with a through first hole, and the anchor block is provided with a through second hole. The first hole and the second hole are connected to allow the anchor cable to be threaded through.

[0009] The second perforation has a gradually expanding opening on the side facing the first perforation, and the inner diameter of the opening is larger than the inner diameter of the first perforation.

[0010] In some possible implementations, the locking head gradually tapers inward into an arc shape along the direction toward the anchoring tray, and the limiting groove is an arc-shaped groove that matches the locking head.

[0011] In some possible implementations, the curvature of the limiting groove is greater than the curvature of the card head.

[0012] In some possible implementations, the end of the anchor block facing the limiting groove is provided with a limiting step, and the outer periphery of the limiting groove is provided with a slot. The limiting step and the slot are inserted into each other to make the anchor block engage with the anchoring tray.

[0013] In some possible implementations, the second perforation has a gradually expanding mounting opening along a direction opposite to the first perforation, the inner diameter of the mounting opening being larger than the inner diameter of the first perforation.

[0014] In some possible implementations, a wedge-shaped positioning block is also included, which is used to interference fit into the mounting opening so that the anchor cable located in the second perforation is clamped and fixed in the anchor.

[0015] In some possible implementations, the wedge-shaped positioning blocks have at least three.

[0016] In some possible implementations, the anchoring tray is recessed on the side opposite to the anchor block.

[0017] In some possible implementations, the outer periphery of the anchor block is provided with a plurality of annular grooves at intervals.

[0018] In some possible implementations, at least one of the anchor block and the anchoring tray is an integrally formed metal part.

[0019] (1) The anchor fixing device provided in this application has a gradually expanding opening on the side of the second perforation facing the first perforation. The inner diameter of the opening is larger than the inner diameter of the first perforation. The opening can guide the axis of the anchor cable to align with the first perforation, reduce the angle of the anchor cable, and thus effectively reduce the local shear stress caused by the axis deviation of the anchor cable.

[0020] (2) The anchor fixing device provided in this application has an inner diameter of the opening that is larger than the inner diameter of the first perforation. The inner diameter of the opening and the first perforation form a conical transition zone, which can gradually disperse the shear stress transmitted by the anchor cable to the contact surface of the anchor block. Thus, the small-amplitude vibration of the anchor cable can be absorbed by the movement allowance of the opening, avoiding the cumulative shear damage caused by the rigid contact between the anchor cable and the anchor block or anchoring tray.

[0021] (3) The anchor fixing device provided in this application has a clamp head that gradually shrinks inward to form an arc shape along the direction toward the anchoring tray, and the limiting groove is an arc groove that matches the clamp head. As a result, the contact position between the anchor block and the anchoring tray changes from surface contact to point contact and line contact, thereby further reducing the shear force between the anchoring tray and the anchor cable.

[0022] (4) The anchor fixing device provided in this application has a limiting step constructed at one end of the anchor block facing the limiting groove, and a slot constructed on the outer periphery of the limiting groove. The limiting step and the slot are inserted into each other to lock the anchor block and the anchoring tray. The limiting step enhances the locking effect between the anchor block and the anchoring tray, preventing the anchor block and the anchoring tray from shifting due to external forces and affecting the position of the anchor cable. Attached Figure Description

[0023] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0024] Figure 1 This is an assembly diagram of the anchor fixing device in the embodiments of this application;

[0025] Figure 2 for Figure 1 A schematic diagram of an exemplary structure of a central anchor block;

[0026] Figure 3 for Figure 1 A schematic diagram of an exemplary structure of a middle anchor block.

[0027] Explanation of reference numerals in the attached figures

[0028] 100. Anchoring tray; 101. Limiting groove; 102. Recess;

[0029] 200. Anchor block; 201. Clamp head; 202. Limiting step; 203. Installation opening; 204. Wedge-shaped positioning block; 205. Annular groove; 206. Opening portion;

[0030] 300. Reserved channel;

[0031] 400. Anchor cable.

[0032] The accompanying drawings have illustrated specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to specific embodiments. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0034] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0035] In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application.

[0036] The terms "first," "second," "third," "fourth," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in a sequence other than those illustrated or described herein.

[0037] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or apparatus.

[0038] As mentioned in the background technology, in actual operation, due to the natural conditions of the roof or sidewalls of the mine roadway, it is difficult for the working face of the rock strata where the anchor cable is installed to be a plane. Therefore, when conventional anchor cables are installed, it is difficult for the ordinary tray and the reserved channel to form a perpendicular relationship. Under such conditions, tensioning the anchor cable will cause the anchor cable to bend, resulting in a large loss of stress transmission. In severe cases, it will cause shear stress between the tray and the anchor cable, which is prone to anchor cable breakage risk.

[0039] Based on the above description of the relevant technologies, this application provides an anchor fixing device, which will be described below in conjunction with the accompanying drawings.

[0040] like Figures 1 to 3 As shown in the embodiment of this application, the anchor fixing device includes an anchoring tray 100 and an anchor block 200. The anchoring tray 100 includes a tray body and a limiting groove 101 constructed on the tray body. The anchor block 200 is used to dock with the anchoring tray 100. The anchor block 200 has a protruding locking head 201 on one end facing the anchoring tray 100. The locking head 201 is used to engage with the limiting groove 101. The anchoring tray 100 has a through first hole, and the anchor block 200 has a through second hole. The first hole and the second hole are connected to allow the anchor cable 400 to pass through. The second hole has a gradually expanding opening 206 on the side facing the first hole. The inner diameter of the opening 206 is larger than the inner diameter of the first hole.

[0041] As can be seen from the above description, the anchor fixing device provided in this application embodiment has a gradually expanding opening 206 on the side of the second perforation facing the first perforation. The inner diameter of the opening 206 is larger than the inner diameter of the first perforation. The opening 206 can guide the axis of the anchor cable 400 to align with the first perforation, reduce the angle of the anchor cable 400, and thus effectively reduce the local shear stress of the anchor cable 400 caused by the axis deviation.

[0042] Furthermore, since the inner diameter of the opening 206 is larger than the inner diameter of the first perforation, the inner diameter of the opening 206 and the first perforation form a conical transition zone, which can gradually disperse the shear stress transmitted by the anchor cable 400 to the contact surface of the anchor block 200. Thus, the small-amplitude vibration of the anchor cable 400 can be absorbed by the play of the opening 206, avoiding the cumulative shear damage caused by the rigid contact between the anchor cable 400 and the anchor block 200 or the anchoring tray 100.

[0043] like Figure 2As shown, in some embodiments, the locking head 201 gradually tapers inward into an arc shape along the direction toward the anchoring tray 100, and the limiting groove 101 is an arc-shaped groove that matches the locking head 201. Further, the curvature of the limiting groove 101 is greater than the curvature of the locking head 201.

[0044] In the above embodiment, the locking head 201 and the limiting groove 101 cooperate to form a movable ball joint structure. The movable displacement of the locking head 201 within a certain area of ​​the limiting groove 101 compensates for the movable offset of the anchor cable 400 within the anchor block 200 and the anchoring tray 100, thereby avoiding the strong shearing force caused by the rigid contact of the anchor cable 400 within the anchor block 200 and the anchoring tray 100.

[0045] like Figure 2 As shown, in some embodiments, the anchor block 200 has a limiting step 202 at one end facing the limiting groove 101, and the outer periphery of the limiting groove 101 has a slot. The limiting step 202 is inserted into the slot so that the anchor block 200 is engaged with the anchoring tray 100.

[0046] As can be seen from the above description, due to the insertion and engagement of the limiting step 202 with the slot, at least a portion of the anchor block 200 is actually in a limiting and constrained state with the anchoring tray 100. By adjusting the length of the limiting step 202, the constraint strength between the anchor block 200 and the anchoring tray 100 can be adjusted accordingly. Preferably, the anchor block 200 can move to a certain extent with the anchoring tray 100 under the constraint, forming a certain angle offset through the engagement of the slot head 201 and the limiting groove 101. By setting the limiting step 202, the fixing effect between the anchor block 200 and the anchoring tray 100 can be enhanced.

[0047] As an alternative implementation, the second perforation has a gradually expanding mounting opening 203 in a direction opposite to the first perforation, the inner diameter of which is larger than that of the first perforation. Here, the mounting opening 203 facilitates the passage of the anchor cable 400 through the anchor block 200 and the anchoring tray 100, reducing interference during anchor cable 400 installation.

[0048] Furthermore, the anchor fixing device also includes a wedge-shaped positioning block 204, which is used to interference fit into the mounting opening 203 so that the anchor cable 400 located in the second through hole is clamped and fixed in the anchor. The wedge-shaped positioning block 204 can be interference fitted into the mounting opening 203 after the anchor cable 400 passes through the anchor block 200. The wedge-shaped positioning block 204, the second through hole of the anchor block 200, and the anchor cable 400 work together to clamp the anchor cable 400 and prevent the anchor cable 400 from shaking.

[0049] In the above embodiment, there are at least three wedge-shaped positioning blocks 204, which are evenly spaced around the anchor cable 400 to enhance the fixing effect on the anchor cable 400.

[0050] In some embodiments, the anchoring tray 100 has a recessed portion 102 formed on the side opposite to the anchor block 200. The recessed portion 102 changes the original contact area between the anchoring tray 100 and the outer periphery of the reserved hole 300 from circular to annular. In some complex working conditions, such as when a protruding area is formed around the reserved hole 300, the recessed portion 102 can avoid engaging with this protruding area, thereby reducing the risk of the tray swinging and keeping the anchoring tray 100 and the anchor cable 400 as perpendicular as possible.

[0051] In some embodiments, such as Figure 3 As shown, the outer periphery of the anchor block 200 is provided with a plurality of annular grooves 205 at intervals. The number of annular grooves 205 can be two to three, which enhance the anti-slip effect of the anchor block 200.

[0052] In some embodiments, at least one of the anchor block 200 and the anchoring tray 100 is an integrally formed metal component. Preferably, both the anchor block 200 and the anchoring tray 100 are integrally formed metal components, such as stainless steel or cast iron.

[0053] In this embodiment of the application, an exemplary dimension of the anchor block 200 is marked as follows:

[0054] The anchor block 200 has an overall length of 63mm and an outer diameter of 63mm. The length of the limiting step 202 is 5mm. The radius of the arc of the clamp head 201 is 32mm. The width of the annular groove 205 is 10mm and the height is 1mm. The distance between the clamp head 201 part of the anchor block 200 and the main body part of the anchor block 200 is 43mm.

[0055] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0056] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. An anchorage fixture, comprising: The utility model relates to an anchor block and anchor plate structure, comprising: An anchor plate (100) comprising a plate body and a limiting groove (101) formed on the plate body; An anchor block (200) used for docking with the anchor plate (100), wherein a protruding clamping head (201) is formed on the side end of the anchor block (200) facing the anchor plate (100), and the clamping head (201) is used for clamping with the limiting groove (101); A limiting step (202) is formed on the end of the anchor block (200) facing the limiting groove (101), and a clamping groove is formed on the outer circumferential side of the limiting groove (101), wherein the limiting step (202) is inserted and matched with the clamping groove to clamp the anchor block (200) with the anchor plate (100); The anchor plate (100) is provided with a first through hole, the anchor block (200) is provided with a second through hole, and the first through hole and the second through hole are communicated to pass through an anchor cable (400); The second through hole is provided with a gradually outward expanding opening (206) on the side facing the first through hole, and the inner diameter size of the opening (206) is greater than the inner diameter size of the first through hole.

2. The anchorage fixing device of claim 1, wherein The clamping head (201) gradually shrinks in a circular arc shape in the direction facing the anchor plate (100), and the limiting groove (101) is a circular arc groove matched with the clamping head (201).

3. The anchorage fixing device of claim 2, wherein The curvature of the limiting groove (101) is greater than the curvature of the clamping head (201).

4. The anchorage assembly of claim 1, wherein In the direction away from the first through hole, the second through hole has a gradually outward expanding mounting opening (203), and the inner diameter size of the mounting opening (203) is greater than the inner diameter size of the first through hole.

5. The anchorage fixing device of claim 4, wherein A wedge-shaped positioning block (204) is further included, which is used for interference insertion into the mounting opening (203) to clamp and fix the anchor cable (400) in the anchor block.

6. The anchorage assembly of claim 5, wherein, The wedge-shaped positioning block (204) has at least three.

7. The anchorage assembly of claim 1, wherein The anchor plate (100) is recessed on the side away from the anchor block (200) to form a recess (102).

8. The anchorage assembly of claim 1, wherein A plurality of annular grooves (205) are formed on the outer circumferential side of the anchor block (200) at intervals.

9. The anchorage assembly of claim 1, wherein At least one of the anchor block (200) and the anchor plate (100) is an integrally formed metal piece.

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