Improved anchoring nail

Abstract

The utility model discloses an improved anchoring nail, which belongs to the technical field of fastening components and comprises a screw, a base and a plurality of side arms, and the base and the side arms are integrally formed. The base comprises a base body and a threaded connection hole, the threaded connection hole penetrates through the base body, and the threaded connection hole is connected with the screw in a matched mode; each side arm comprises a fixed end, a free end and a side arm body, the fixed ends are arranged on the side face of the base body in a scattered mode, the side arm bodies extend towards the periphery with the fixed ends as base points, and the free ends are located at the tail ends of the side arm bodies. The anchoring nail is not prone to breakage, long in service life, easy to manufacture, convenient to operate and low in cost.

Description

Technical Field

[0001] This utility model relates to the field of fastening components technology, and in particular to an improved anchor nail. Background Technology

[0002] The main purpose of castable anchors is to firmly anchor refractory castable linings to the inner walls of furnaces or other high-temperature equipment to ensure the stability and reliability of the lining. In high-temperature environments, the inner walls of furnaces or other equipment are affected by factors such as high temperature, airflow, and material erosion, which can easily cause the lining to fall off or loosen. Therefore, castable anchors are needed to firmly anchor them.

[0003] Because anchor bolts are exposed to high temperatures for extended periods, it's crucial to consider the compatibility of their expansion coefficients with the castable refractory material, taking into account the impact of expansion. For instance, traditional steel anchors tend to expand significantly, while refractory bricks and castable refractory materials have relatively smaller expansion coefficients. Therefore, the treatment of expansion joints on the anchor surface must be carefully considered. If the gaps are too large, the anchor may separate from the castable refractory, leading to oxidation and cracking, thus failing to provide effective anchoring. If the gaps are too small, the castable refractory may crack due to expansion.

[0004] Ceramic materials, due to their low coefficient of thermal expansion and high-temperature resistance, seem more suitable as novel anchoring nails. Chinese patent CN102679737B discloses a ceramic anchoring nail for castable linings, but due to the limitations of the technology at the time, the base and support arm of the anchoring nail could not be formed in one piece and could only be connected by threads. This resulted in the two support arms in this patent needing to be screwed onto the base separately each time, requiring a lot of tedious and repetitive screwing work during the operation.

[0005] Chinese patent CN219186820U discloses a detachable anchor and a reaction vessel equipped with the detachable anchor, a first anchor assembly, a second anchor assembly, and a nut. The second anchor assembly includes a second rod-shaped portion and a V-shaped head welded to one of the free ends of the second rod-shaped portion. This patent connects the V-shaped head and the nut via the second rod-shaped portion, but it has two drawbacks: First, the manufacturing cost is high. The second rod-shaped portion must first be welded to the V-shaped head, and then threads are provided at the end to connect to the nut. Moreover, this nut needs to be longer than a normal nut to connect to the second rod-shaped portion and the first anchor assembly at both ends, resulting in high manufacturing costs and a cumbersome manufacturing process. Second, the service life is short. Because the contact point between the V-shaped head and the second rod-shaped portion is small, the interface is prone to breakage. Furthermore, the high coefficient of expansion of stainless steel makes it easy to break, resulting in poor durability and a short service life. Utility Model Content

[0006] The technical problem to be solved by this utility model is to design an improved ceramic anchor nail with a large contact area between the side arm and the nut, which is not easy to break, has a long service life, is simple to manufacture, easy to operate, and has low cost.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an improved anchoring nail, comprising a screw, a base, and several side arms, wherein the base and the side arms are integrally formed; the base includes a base body and a threaded connection hole, the threaded connection hole penetrating the base body and being matched with the screw; the side arm includes a fixed end, a free end, and a side arm body, the fixed end being distributed on the side of the base body, the side arm body extending outwards from the fixed end as a base point, and the free end being located at the end of the side arm body.

[0008] Furthermore, the number of side arms is not less than two, and the angle between the free end of each side arm and the screw is not equal to 90°.

[0009] Furthermore, the fixed ends are evenly distributed on the side of the base body.

[0010] Furthermore, the side arm body is a straight or wavy columnar structure.

[0011] Furthermore, the free end is a straight or bent cylindrical structure.

[0012] Furthermore, the base and side arms are made of ceramic material. Beneficial effects

[0013] This application increases the contact area between the side wall and the base by setting the side arm of the anchor on the side of the base, making it less prone to breakage at high temperatures. In addition, the side arm and the base are integrally formed using ceramic material, eliminating the need for welding. This reduces the workload during both manufacturing and installation.

[0014] The base body is designed with a through-hole threaded hole structure, which facilitates the adjustment of the anchor position during installation. Multiple side arms are set around the base to increase the contact area between the anchor head and the castable, thereby increasing the fixing force. The anchor is made of ceramic material, which has high temperature resistance, which can extend the service life of the anchor of this application and make it more suitable for widespread application. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of one embodiment of the anchor nail of this utility model.

[0016] Figure 2 This is a structural schematic diagram of another embodiment of the anchoring nail of this utility model.

[0017] Figure 3 This is a schematic diagram of the structure of the side arm of the anchor nail of this utility model.

[0018] Figure 4 This is a top view of the anchoring nail of this utility model.

[0019] Wherein: 1-base, 2-side arm, 11-base body, 12-threaded connection hole, 21-fixed end, 22-free end, 23-side arm body, 3-screw. Detailed Implementation

[0020] To enhance understanding of this utility model, it will be described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain this utility model and do not limit the scope of protection of this utility model.

[0021] like Figures 1 to 4 The image shows an improved anchor bolt, comprising a base 1 and several side arms 2 disposed around the base 1, wherein the number of side arms 2 is not less than two. Figure 1 The image shows an example with two side arms. Figure 2 The example shown is of four side arms. Side arms 2 can be evenly distributed around the base 1, or they can be freely distributed; there is no restriction here. The angle between side arms 2 and screw 3 is not equal to 90°, because the anchoring force is lowest at 90°. Figures 1 to 4 The anchor pin shown has its side arm 2 extending in the opposite direction to the connection between the base body 11 and the screw 3. At this point, the included angle between the side arm 2 and the screw 3 is greater than 90°. The base 1 and the side arm 2 are integrally molded, which makes the connection between the two more secure.

[0022] The base 1 includes a base body 11 and a threaded connection hole 12. The threaded connection hole 12 is a through hole that penetrates the base body 11. The thread length of the threaded connection hole 12 and the screw 3 can also be set to be longer, so that when the threaded connection hole 12 and the screw 3 are connected, the specific position of the anchor nail can be fixed according to actual needs.

[0023] like Figure 3 As shown, the side arm 2 includes a fixed end 21 connected to the base body 11, a side arm body 23 extending outwards from the fixed end 21, and a free end 22 located at the end of the side arm body 23. The side arm body 23 can be a straight or wavy columnar structure. Figures 1 to 4 The diagram shows a wave-shaped structure. Similarly, the free end 22 can also be a straight or bent column structure, and the bending direction is not restricted.

[0024] Different shapes and numbers of outriggers provide different fixing forces, and can be replaced according to specific scenarios and usage requirements.

[0025] According to a preferred embodiment of the present invention, the base 1 and the side arm 2 are made of ceramic material.

[0026] When using the above-mentioned anchoring nails, the screw is passed through the anchor hole that is pre-placed in the lining layer, and then the other end of the screw is screwed to the base 1. The specific screwing position is determined according to actual needs. Finally, castable refractory is poured into the castable lining to fill the area around the anchoring nail and form a tight bond.

[0027] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. An improved anchor bolt, comprising a threaded rod (3), characterized in that, It also includes a base (1) and several side arms (2), wherein the base (1) and the side arms (2) are integrally formed; The base (1) includes a base body (11) and a threaded connection hole (12). The threaded connection hole (12) penetrates the base body (11) and is matched with the screw (3). The side arm (2) includes a fixed end (21), a free end (22) and a side arm body (23). The fixed end (21) is distributed on the side of the base body (11). The side arm body (23) extends in all directions with the fixed end (21) as the base point. The free end (22) is located at the end of the side arm body (23). The number of side arms (2) is not less than two, and the included angle between the free end (22) of each side arm (2) and the screw (3) is not equal to 90°.

2. The improved anchor bolt according to claim 1, characterized in that, The fixed ends (21) are evenly distributed on the side of the base body (11).

3. The improved anchor bolt according to claim 1, characterized in that, The side arm body (23) is a straight or wavy column structure.

4. The improved anchor bolt according to claim 3, characterized in that, The free end (22) is a straight or bent column structure.

5. The improved anchor bolt according to claim 1, characterized in that, The base (1) and side arm (2) are made of ceramic material.

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