Embedded bolt structure for temporarily fixing stairs in metal formwork engineering

Abstract

The utility model relates to an embedded bolt structure for temporarily fixing stairs in metal formwork engineering, which comprises a metal formwork and a bolt, a bolt hole is reserved on the metal formwork, the bolt is vertically placed in the reserved bolt hole, the embedded bolt structure further comprises a conical sleeve, the conical sleeve is narrow in top and wide in bottom, and the conical sleeve is sleeved outside the bolt and fixed on the metal formwork. According to the utility model, the position of the embedded bolt can be fixed, and the phenomena of gliding, inclination, deviation and the like are avoided.

Description

Technical Field

[0001] The utility model relates to the field of civil engineering, in particular to a pre-embedded bolt structure for temporarily fixing stairs in metal formwork engineering. Background Art

[0002] In prefabricated building projects, prefabricated stairs need to be equipped with embedded bolts at the platform. Later, the prefabricated stairs with installation holes will be installed into the embedded bolts. However, during the actual construction, it was found that the embedded bolts often slide, tilt, and shift during the pouring process, causing the embedded bolts to be misaligned with the reserved holes of the prefabricated stairs, making it impossible to install the prefabricated stairs. Utility Model Content

[0003] The utility model aims to overcome the defects of the prior art and provides a pre-embedded bolt structure for temporarily fixing stairs in metal formwork projects, so as to solve the problem that the pre-embedded bolts of prefabricated stairs at the stair platform of the metal formwork project slide down, deviate and tilt, making the prefabricated stairs unable to be installed.

[0004] In order to solve the above technical problems, the utility model is achieved as follows:

[0005] A pre-buried bolt structure for temporarily fixing stairs in metal formwork projects, comprising a metal formwork and bolts, wherein bolt holes are reserved on the metal formwork, and the bolts are vertically placed in the reserved bolt holes. The invention is characterized in that: it also comprises a conical sleeve, which is narrow at the top and wide at the bottom, and is arranged outside the bolt and fixed on the metal formwork.

[0006] The embedded bolt structure for temporarily fixing stairs in metal formwork engineering is characterized in that the conical sleeve hole is directly the same as the outer diameter of the bolt.

[0007] The embedded bolt structure for temporarily fixing stairs in metal formwork engineering is characterized in that the conical sleeve and the bolt are connected by threads.

[0008] The embedded bolt structure for temporarily fixing stairs in metal formwork engineering is characterized in that the conical sleeve is inserted into the outside of the bolt, and a rubber sleeve is provided between the conical sleeve and the bolt.

[0009] The embedded bolt structure for temporarily fixing stairs in metal formwork engineering is characterized in that the bottom of the conical sleeve is welded to the metal formwork.

[0010] The embedded bolt structure for temporarily fixing stairs in metal formwork engineering is characterized in that the conical sleeve is made of plastic material.

[0011] The beneficial effect of the utility model is: it can be seen from the above technical scheme that the present application provides a pre-embedded bolt structure for temporarily fixing stairs in metal formwork projects, and a plastic conical sleeve is installed at the interface between the pre-embedded bolt of the stairs and the aluminum formwork (or metal formwork such as magnesium formwork). After the plastic conical sleeve is inserted into the pre-embedded bolt, it can be tightly attached to the surface of the aluminum formwork, which can effectively prevent the pre-embedded bolt from tilting or deviating.

[0012] The present application solves the engineering problems of embedded bolts being prone to sliding down, tilting, and deviating, and improves the lifting efficiency; compared with the traditional construction method, the technical solution of the present application can be operated on the surface of the aluminum formwork, which is more convenient and simpler than reinforcing inside the metal formwork; during the concrete pouring process, there is no need to care for and adjust the embedded bolts, which reduces the workload of the construction personnel and indirectly reduces the project cost; the plastic conical sleeve is reusable, and this construction process has the potential for widespread promotion due to its simple operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention is further described in detail below in conjunction with the accompanying drawings and implementation examples:

[0014] Figure 1 This is a schematic diagram of the structure of this application. DETAILED DESCRIPTION

[0015] The technical solutions of the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments in the embodiments of the present application are within the scope of protection requested by the present application.

[0016] like Figure 1 As shown: a pre-embedded bolt structure for temporarily fixing stairs in metal formwork engineering, the metal formwork 1 includes an aluminum formwork or a magnesium formwork;

[0017] The technical solution of the present application adopts the method of installing a plastic conical sleeve at the interface between the embedded bolts of the stairs and the metal formwork. After the plastic conical sleeve is inserted into the embedded bolts, it can be tightly attached to the surface of the metal formwork.

[0018] A customized plastic conical sleeve 2 is used, with a narrow head of 22 mm and a wide head of 50 mm. The diameter of the conical sleeve hole is 14 mm, which is the same size as the bolt, to ensure that the bolt will not slip when inserted.

[0019] Put bolt 3 into the reserved hole for embedded bolts in the metal template, and then insert the plastic conical sleeve from the top of the bolt.

[0020] After the conical sleeve is inserted into the designated position of the bolt, it is placed on the aluminum mold. Because the conical sleeve is small at the top and large at the bottom, the bottom contact surface is large and the center of gravity is always within the support range of the base, forming a tumbler effect.

[0021] The conical sleeve is connected to the bolt via threads to ensure that the conical sleeve does not slide down.

[0022] This connection method can also be used between the tapered sleeve and the bolt, where the tapered sleeve is inserted into the outside of the bolt, and a rubber sleeve is provided between the tapered sleeve and the bolt.

[0023] The bottom of the conical sleeve is welded to the metal template and is in close contact with the upper surface of the metal template, thereby effectively preventing the embedded bolts from tilting and deviating.

[0024] Compared with the traditional construction method, the present application improves the lifting efficiency; it is more convenient and simpler to operate on the surface of the metal formwork than to reinforce inside the metal formwork; during the concrete pouring process, there is no need to maintain and adjust the embedded bolts, which reduces the workload of the construction personnel and indirectly reduces the project cost; the plastic conical sleeve is reusable.

[0025] This method of fixing embedded bolts for stairs is easy to purchase and simple to operate, and can be completed by ordinary technicians without training.

[0026] This application does not require high skills from construction workers, and ordinary construction workers can easily operate it.

[0027] The above are only embodiments provided for the present application and are not intended to limit the present application. Although the present application is described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A pre-embedded bolt structure for temporarily fixing stairs in metal formwork engineering, comprising a metal formwork and bolts, a bolt hole is reserved on the metal formwork, and the bolt is vertically placed in the reserved bolt hole, characterized in that: It also includes a tapered sleeve, which is narrow at the top and wide at the bottom. The tapered sleeve is arranged outside the bolt and fixed on the metal template.

2. The embedded bolt structure for temporarily fixing stairs in metal formwork engineering according to claim 1 is characterized by: The conical sleeve hole is directly the same as the outer diameter of the bolt.

3. The embedded bolt structure for temporarily fixing stairs in metal formwork engineering according to claim 1 is characterized in that: The conical sleeve is connected to the bolt via threads.

4. The embedded bolt structure for temporarily fixing stairs in metal formwork engineering according to claim 1 is characterized in that: The conical sleeve is sleeved on the outside of the bolt, and a rubber sleeve is arranged between the conical sleeve and the bolt.

5. The embedded bolt structure for temporarily fixing stairs in metal formwork engineering according to claim 1 is characterized in that: The bottom of the conical sleeve is connected to the metal template by welding.

6. The embedded bolt structure for temporarily fixing stairs in metal formwork engineering according to claim 1 is characterized in that: The conical sleeve is made of plastic material.

Images