Assembled stair embedded bolt mounting device

By designing a prefabricated staircase embedded bolt installation device including circular tubes, slidable sockets and positioning mechanisms, the problem of difficult control of traditional embedded bolt positioning is solved, the stability and accuracy of embedded bolt positions are achieved, and the construction efficiency is improved.

CN222822726UActive Publication Date: 2025-05-02SHAANXI NO 11 CONSTR ENG CO
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Patent Information

Application Number
CN202421827062.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-30
Publication Date
2025-05-02
Estimated Expiration
2034-07-30

AI Technical Summary

Technical Problem

In the construction of prefabricated stairs, the positioning of traditional embedded bolts is difficult to control, and it is prone to skew, elevation and positioning, which leads to secondary corrections required for later installation, which affects the construction progress and increases labor and time costs.

Method used

A prefabricated staircase embedded bolt installation device is designed, including circular tubes, first and second square steels with slidable sockets, positioning mechanisms and limiting bolts, and the position of the embedded bolts is protected and limited by these components to ensure their stability and accuracy.

Benefits of technology

Through this device, the position of the embedded bolts meets the design requirements and remains stable and unchanged, avoiding the problems of inaccurate positioning and skewness in traditional methods, and improving construction efficiency and installation stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an assembly type stair embedded bolt installation device which comprises two round pipes arranged on the upper portions of two embedded bolts in a sleeved mode respectively, any round pipe is provided with first square steel, the other round pipe is provided with second square steel, one end of the first square steel is arranged in the second square steel in a sliding and sleeved mode, and the other end of the first square steel is provided with second square steel. Positioning mechanisms are arranged at the upper parts of the two ends, far away from each other, of the first square steel and the second square steel; the positioning mechanism comprises two positioning plates arranged in a V shape, and positioning bolts are arranged at the free ends of the two positioning plates in a penetrating mode. By arranging the round pipe, the positions of the embedded bolts can be protected and limited conveniently, by arranging the first square steel and the second square steel which can be connected in a sliding and sleeving mode, the device can adapt to the distance between the two embedded bolts conveniently, and by arranging the positioning mechanism, the distance between the embedded bolts and an upper-stage stair formwork can be limited conveniently. Therefore, the position of the embedded bolt meets the design requirement and is stable and unchanged.
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Description

Technical Field

[0001] The utility model belongs to the technical field of stair construction, and in particular relates to a pre-embedded bolt installation device for assembled stairs. Background Art

[0002] During the construction of prefabricated stairs, embedded bolts need to be installed on each step to facilitate the subsequent installation of railings and other components on the stairs. The positioning of bolts using traditional embedded methods is difficult to control in actual construction. After concrete pouring, they are prone to skewness, inaccurate elevation and positioning, and secondary correction is required for the later installation of stairs, which affects the installation progress of the stairs and increases the cost of labor and time. Therefore, a mounting device that can stabilize the position of embedded bolts is needed. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an assembled staircase embedded bolt installation device in view of the deficiencies in the above-mentioned prior art. The device has a simple structure and a reasonable design. By arranging a round tube, it is convenient to protect and limit the position of the embedded bolts. By arranging a first square steel and a second square steel that can be slidably sleeved, it is convenient to adapt to the distance between the two embedded bolts. By arranging a positioning mechanism, it is convenient to limit the distance between the embedded bolt and the upper-level stair template, so that the position of the embedded bolt meets the design requirements and is stable and unchanged.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: an assembled staircase embedded bolt installation device, characterized in that it includes two round tubes respectively sleeved on the upper parts of the two embedded bolts, the round tubes are located on the outside of the current stair template, any one of the round tubes is provided with a first square steel, and the other round tube is provided with a second square steel, one end of the first square steel can be slidably sleeved in the second square steel, a level is provided on the upper part of the second square steel, the first square steel and the second square steel are both provided with limiting holes along the length direction, the first limiting bolt passes through the limiting holes of the first square steel and the second square steel, and the upper parts of the two ends of the first square steel and the second square steel that are away from each other are both provided with positioning mechanisms;

[0005] The positioning mechanism includes two positioning plates arranged in a V-shape on the first square steel and the second square steel. The free ends of the two positioning plates are both penetrated by positioning bolts, and the positioning bolts are also penetrated on the upper-level stair template.

[0006] The above-mentioned embedded bolt installation device for assembled stairs is characterized in that: the second limiting bolt of one positioning mechanism passes through the intersection end of the two positioning plates and is connected to the first square steel, and the second limiting bolt of the other positioning mechanism passes through the intersection end of the two positioning plates and is connected to the second square steel.

[0007] Compared with the prior art, the utility model has the following advantages:

[0008] 1. The utility model is easy and quick to operate. By setting the round tube, it is convenient to protect and limit the position of the embedded bolts. By setting the first square steel and the second square steel that can be slidably sleeved, it is convenient to adapt to the distance between the two embedded bolts, thereby ensuring that after the round tube is removed, the distance between the two embedded bolts meets the design requirements and remains stable.

[0009] 2. The utility model provides a positioning mechanism to facilitate connection to the upper stair template, thereby limiting the distance between the first square steel and the second square steel and the upper stair template, that is, limiting the distance between the two embedded bolts and the upper stair template, so that the distance and height between the two embedded bolts and the upper stair template meet the design requirements and remain stable; by providing two V-shaped positioning plates, it is convenient to adjust the angle between the two positioning plates as needed, thereby adjusting the position of the positioning bolts, so that the first square steel can be connected to the upper stair template of any width, and the two positioning plates form a triangular structure with the upper stair template, so that the first square steel and the second square steel will no longer swing left and right, and the installation stability is strong.

[0010] To sum up, the utility model has a simple structure and a reasonable design. By arranging a round tube, it is convenient to protect and limit the position of the embedded bolts. By arranging a first square steel and a second square steel that can be slidably connected, it is convenient to adapt to the distance between the two embedded bolts. By arranging a positioning mechanism, it is convenient to limit the distance between the embedded bolts and the upper level stair template, so that the position of the embedded bolts meets the design requirements and remains stable.

[0011] The technical solution of the utility model is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] Figure 2 for Figure 1 Left view of .

[0014] Figure 3 for Figure 1 Top view of the .

[0015] Description of reference numerals:

[0016] 1-Current stair template; 2-Previous stair template; 3-Embedded bolts;

[0017] 4-round tube; 5-first square steel; 6-second square steel;

[0018] 7-level gauge; 8-limiting hole; 9-first limiting bolt;

[0019] 10-positioning plate; 11-second limiting bolt; 12-positioning bolt. DETAILED DESCRIPTION

[0020] like Figure 1 , Figure 2 and Figure 3 As shown, the utility model includes two round tubes 4 respectively sleeved on the upper parts of two embedded bolts 3, the round tubes 4 are located on the outside of the current stair formwork 1, a first square steel 5 is arranged on any one of the round tubes 4, and a second square steel 6 is arranged on the other round tube 4, one end of the first square steel 5 can be slidably sleeved in the second square steel 6, a level 7 is arranged on the upper part of the second square steel 6, the first square steel 5 and the second square steel 6 are both provided with limiting holes 8 along the length direction, a first limiting bolt 9 passes through the limiting holes 8 of the first square steel 5 and the second square steel 6, and a positioning mechanism is arranged on the upper parts of the two ends of the first square steel 5 and the second square steel 6 that are far away from each other.

[0021] The positioning mechanism includes two positioning plates 10 arranged in a V-shape on the first square steel 5 and the second square steel 6. The free ends of the two positioning plates 10 are both penetrated by positioning bolts 12, and the positioning bolts 12 are also penetrated on the upper-level stair template 2.

[0022] In actual use, the two round tubes 4 are respectively located at the lower parts of the two ends of the first square steel 5 and the second square steel 6 which are far away from each other. By providing the round tubes 4, it is convenient to protect and limit the position of the embedded bolts 3. By providing the first square steel 5 and the second square steel 6 which can be slidably connected, it is convenient to adapt to the distance between the two embedded bolts 3, thereby ensuring that after the round tubes 4 are removed, the distance between the two embedded bolts 3 meets the design requirements and remains stable.

[0023] In actual use, by setting a positioning mechanism, it is convenient to connect to the upper-level stair formwork 2, thereby limiting the distance between the first square steel 5 and the second square steel 6 and the upper-level stair formwork 2, that is, limiting the distance between the two embedded bolts 3 and the upper-level stair formwork 2, so that the distance and height between the two embedded bolts 3 and the upper-level stair formwork 2 meet the design requirements and remain stable.

[0024] In actual use, by setting a spirit level 7 on the second square steel 6, it is convenient to determine whether the first square steel 5 and the second square steel 6 are in a horizontal state, thereby facilitating determination of whether the circular tube 4 located at the lower part is in a vertical state, and facilitating embedding the embedded bolts 3 in a vertical state in the current stair formwork 1.

[0025] It should be noted that by providing two V-shaped positioning plates 10, it is convenient to adjust the angle between the two positioning plates 10 according to needs, thereby adjusting the position of the positioning bolts 12, so that the positioning plates 10 can be connected to the upper-level stair template 2 of any width, and the two positioning plates 10 form a triangular structure with the upper-level stair template 2, so that the first square steel 5 and the second square steel 6 will no longer swing left and right, and the installation stability is strong.

[0026] It should be noted that the first square steel 5 and the second square steel 6 are both hollow square steels, and there are multiple limiting holes 8, which is convenient for adjusting the sleeve length of the first square steel 5 and the second square steel 6, so that the spacing between the two round tubes 4 can be adjusted, and then the first limiting bolt 9 is used to pass through any two limiting holes 8 to achieve the connection between the first square steel 5 and the second square steel 6.

[0027] In this embodiment, the second limiting bolt 11 of one positioning mechanism passes through the intersection end of the two positioning plates 10 and is connected to the first square steel 5, and the second limiting bolt 11 of the other positioning mechanism passes through the intersection end of the two positioning plates 10 and is connected to the second square steel 6.

[0028] In actual use, through holes are opened at the intersecting ends of the two positioning plates 10, and the second limiting bolt 11 passes through the two through holes, the first square steel 5 and the second square steel 6, so as to realize the connection between the two positioning plates 10 and the first square steel 5 and the second square steel 6, that is, the connection between the two positioning mechanisms and the first square steel 5 and the second square steel 6 is realized respectively.

[0029] It should be noted that when the angle between the two positioning plates 10 needs to be adjusted, the second limiting bolt 11 is loosened, and after the two positioning plates 10 are in proper positions, the second limiting bolt 11 is tightened.

[0030] When the utility model is used, the sleeve length of the first square steel 5 and the second square steel 6 is adjusted, the first limiting bolt 9 is inserted, and then the round tube 4 is sleeved on the upper part of the embedded bolt 3, and then the angle between the two first square steels 5 is adjusted, and the second limiting bolt 11 and the positioning bolt 12 are tightened, so that the height and position of the round tube 4 are fixed, thereby limiting the embedded bolt 3 and preventing the embedded bolt 3 from shifting during the concrete pouring process.

[0031] The above is only a preferred embodiment of the present invention and does not constitute any limitation to the present invention. Any simple modification, change and equivalent structural change made to the above embodiments according to the technical essence of the present invention shall still fall within the protection scope of the technical solution of the present invention.

Claims

1. An assembled staircase embedded bolt installation device, characterized in that: The invention comprises two circular tubes (4) respectively sleeved on the upper parts of two embedded bolts (3), the circular tubes (4) being located on the outer side of the current stair formwork (1), a first square steel (5) being arranged on any one of the circular tubes (4), a second square steel (6) being arranged on the other circular tube (4), one end of the first square steel (5) being slidably sleeved in the second square steel (6), a level gauge (7) being arranged on the upper part of the second square steel (6), the first square steel (5) and the second square steel (6) both being provided with limiting holes (8) along the length direction, a first limiting bolt (9) passing through the limiting holes (8) of the first square steel (5) and the second square steel (6), and positioning mechanisms being arranged on the upper parts of both ends of the first square steel (5) and the second square steel (6) which are away from each other; The positioning mechanism comprises two positioning plates (10) arranged in a V-shape on the first square steel (5) and the second square steel (6), and free ends of the two positioning plates (10) are both penetrated by positioning bolts (12), and the positioning bolts (12) are also penetrated by the upper stair template (2).

2. The pre-embedded bolt installation device for assembled stairs according to claim 1, characterized in that: The second limiting bolt (11) of one positioning mechanism passes through the intersection of the two positioning plates (10) and is connected to the first square steel (5), and the second limiting bolt (11) of the other positioning mechanism passes through the intersection of the two positioning plates (10) and is connected to the second square steel (6).