Safe anchorage device

Abstract

The utility model discloses a safety anchorage device which comprises an anchor backing plate and an extrusion sleeve, a small-diameter preformed groove is formed in the position, close to the edge, of one end of the anchor backing plate, a large-diameter preformed groove is formed in the position, corresponding to the small-diameter preformed groove, of the other end of the anchor backing plate, and the extrusion sleeve is arranged in the large-diameter preformed groove. A large-diameter preformed groove is formed in the anchor bearing plate, a preformed hole communicated with the large-diameter preformed groove is formed in the periphery of the anchor bearing plate, a locking screw is arranged in the preformed hole, the extrusion sleeve is fixed in the large-diameter preformed groove through the locking screw, the end of the extrusion sleeve is connected with a limiting disc, and the limiting disc makes contact with the inner wall of the large-diameter preformed groove. The novel extrusion sleeve is provided with a limiting structure, is not prone to skew or disengage from the anchor bearing plate in the using process, is better in safety effect and is suitable for being widely used and popularized.

Description

Technical Field

[0001] The utility model relates to the technical field of anchor devices, and particularly relates to a safety anchor device. Background Technique

[0002] An anchor device refers to a permanent anchoring device used in prestressed concrete, which is an anchoring tool in a post-tensioned structure or component to maintain the tension of the prestressed tendon and transfer it to the interior of the concrete.

[0003] Patent No. CN212026860U discloses a prestressed anchor device. The prestressed anchor device includes a backing plate; a plurality of steel strands, and the plurality of steel strands all penetrate through the backing plate, and the plurality of steel strands are linearly distributed on the backing plate; a plurality of extrusion anchors, and the plurality of extrusion anchors are all installed on one side of the backing plate, and the plurality of steel strands respectively penetrate through the plurality of extrusion anchors; a corrugated pipe, the corrugated pipe is located on the side of the backing plate away from the extrusion anchor, and the corrugated pipe is sleeved on the outer sides of the plurality of steel strands; a grouting pipe, the grouting pipe is arranged on the corrugated pipe; a threaded bar, the threaded bar is sleeved on the outer sides of the corrugated pipe and the plurality of steel strands; a plurality of guiding mechanisms, and the plurality of guiding mechanisms are respectively installed on the side of the backing plate away from the extrusion anchor. The prestressed anchor device provided by the utility model has the advantages of convenient use, multiple reusability, and convenient installation of steel strands.

[0004] The previous safety anchor devices have the following disadvantages: 1. The extrusion sleeve does not have a limiting structure, and it is easy to be skewed or separated from the anchor backing plate during use. For this reason, we propose a safety anchor device. Summary of the Invention

[0005] The main purpose of the utility model is to provide a safety anchor device, which can effectively solve the problems in the background technique.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A safety anchor device includes an anchor backing plate and an extrusion sleeve. A small-diameter reserved groove is opened at one end of the anchor backing plate near the edge, a large-diameter reserved groove is opened at the other end of the anchor backing plate at a position corresponding to the small-diameter reserved groove, the extrusion sleeve is arranged in the large-diameter reserved groove, a reserved hole communicating with the large-diameter reserved groove is opened on the periphery of the anchor backing plate, a locking screw is arranged in the reserved hole, the extrusion sleeve is fixed in the large-diameter reserved groove through the locking screw, a limiting disk is connected to the end of the extrusion sleeve, and the limiting disk is in contact with the inner wall of the large-diameter reserved groove.

[0008] Furthermore, the end of the extrusion sleeve is set to be conical. By setting the end of the extrusion sleeve to be conical, it can facilitate the better cooperation of the external extrusion die, so as to effectively fix the internal steel cable after extrusion.

[0009] Furthermore, a weight-reducing groove is provided on the periphery of the anchor backing plate.

[0010] Furthermore, a corrosion-resistant layer is provided on the outer surface layer of the anchor backing plate. The corrosion-resistant layer is made of polyurethane material. The corrosion-resistant layer made of polyurethane material greatly improves the corrosion resistance of the surface of the anchor backing plate, and can effectively extend the service life of this anchor.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. For a safety anchor of the utility model, the extrusion sleeve can be conveniently fixed in the small-diameter reserved groove through the locking screw, and the position of the limiting disc can be conveniently limited through the large-diameter reserved groove, so that the extrusion sleeve of this safety anchor has a limiting structure, and it is not easy to be skewed or separated from the anchor backing plate during use, thereby improving the safety effect during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the overall structure of a safety anchor of the utility model.

[0014] Figure 2 is a schematic diagram of the sectional structure of the anchor backing plate of a safety anchor of the utility model.

[0015] Figure 3 is a schematic diagram of the side view structure of a safety anchor of the utility model.

[0016] In the figure: 1, anchor backing plate; 2, weight-reducing groove; 3, small-diameter reserved groove; 4, reserved hole; 5, locking screw; 6, extrusion sleeve; 7, large-diameter reserved groove; 8, limiting disc. EMBODIMENTS

[0017] In order to make the technical means, creative features, achieved purposes and effects of the utility model easy to understand, the utility model will be further described below in conjunction with specific embodiments.

[0018] As Figures 1-3 shown, a safety anchor includes an anchor backing plate 1 and an extrusion sleeve 6. A small-diameter reserved groove 3 is provided at one end of the anchor backing plate 1 near the edge, and a large-diameter reserved groove 7 is provided at the other end of the anchor backing plate 1 at a position corresponding to the small-diameter reserved groove 3. An extrusion sleeve 6 is arranged in the large-diameter reserved groove 7. A reserved hole 4 communicating with the large-diameter reserved groove 7 is provided on the periphery of the anchor backing plate 1. A locking screw 5 is arranged in the reserved hole 4. The extrusion sleeve 6 is fixed in the large-diameter reserved groove 7 through the locking screw 5. One end of the extrusion sleeve 6 is connected with a limiting disc 8, and the limiting disc 8 is in contact with the inner wall of the large-diameter reserved groove 7.

[0019] Among them, the end of the extrusion sleeve 6 is set to be conical.

[0020] In this embodiment, Figure 1 As shown, by setting the end of the extrusion sleeve 6 to a cone shape, it is convenient for the external extrusion die to cooperate better, so that the internal steel cable can be effectively fixed after extrusion.

[0021] Wherein, a weight-reducing groove 2 is arranged on the periphery of the anchor pad 1.

[0022] In this embodiment, Figure 1 and Figure 3 As shown, the weight-reducing groove 2 can be used to conveniently and effectively reduce the overall weight of the anchor plate 1 .

[0023] Wherein, the outer surface of the anchor plate 1 is provided with a corrosion-resistant layer, and the corrosion-resistant layer is made of polyurethane material.

[0024] In this embodiment, Figure 1 As shown, the corrosion-resistant layer made of polyurethane material greatly improves the corrosion resistance of the surface of the anchor plate 1, which can effectively increase the service life of the anchor.

[0025] It should be noted that the utility model is a safety anchor. When working, one side of the anchor plate 1 is connected to the threaded steel bar, the anchor plate is pre-placed in the position to be anchored, the steel cable passes through the extrusion sleeve 6 and the small-diameter reserved groove 3, and then passes through the reserved pipe in the steel skeleton, and the end of the extrusion sleeve 6 is extruded by an external extrusion die, so that the extrusion sleeve 6 can be used to pre-anchor the internal steel cable, and the locking screw 5 is used to conveniently fix the extrusion sleeve 6 in the small-diameter reserved groove 3, and the large-diameter reserved groove 7 is used to conveniently limit the position of the limit plate 8, so that the extrusion sleeve 6 of the safety anchor has a limiting structure, which is not easy to be skewed or detached from the anchor plate 1 during use, thereby improving the safety effect during use.

[0026] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A safety anchor, comprising an anchor backing plate (1) and an extrusion sleeve (6), characterized in that: One end of the anchor backing plate (1) near the edge is provided with a small-diameter reserved groove (3). At the corresponding position of the other end of the anchor backing plate (1) and the small-diameter reserved groove (3), a large-diameter reserved groove (7) is provided. An extrusion sleeve (6) is arranged in the large-diameter reserved groove (7). A reserved hole (4) communicating with the large-diameter reserved groove (7) is provided on the periphery of the anchor backing plate (1). A locking screw (5) is arranged in the reserved hole (4). The extrusion sleeve (6) is fixed in the large-diameter reserved groove (7) through the locking screw (5). A limiting disc (8) is connected to the end of the extrusion sleeve (6). The limiting disc (8) is in contact with the inner wall of the large-diameter reserved groove (7).

2. The safety anchor according to claim 1, characterized in that: The end of the extrusion sleeve (6) is set to be conical.

3. The safety anchor as claimed in claim 1, wherein: A weight-reducing groove (2) is arranged on the periphery of the anchor backing plate (1).

4. A safety anchor as claimed in claim 1, characterized in that: The outer surface layer of the anchor backing plate (1) is provided with a corrosion-resistant layer, and the corrosion-resistant layer is made of polyurethane material.

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