Bolt embedding and positioning device for sliding support of fabricated prefabricated stair

Abstract

The utility model belongs to the technical field of prefabricated stairs, and discloses an assembly type prefabricated stair sliding support bolt pre-embedding positioning device which comprises a support fixed to the upper portion of a formwork through a locking assembly. A to-be-fixed bolt is inserted into the sleeve, and the sleeve is fixed to the side, away from the formwork, of the support; the fastening assembly is arranged on the sleeve and is used for fixing the bolt; the fastening assembly comprises a screw and a through opening formed in the sleeve and communicated with the interior of the sleeve, and the screw is connected into the through opening in a screwed mode and used for abutting against and fixing the bolt inserted into the sleeve. The support is fixed to the upper portion of the formwork through the locking assembly, then the bolt is inserted into the sleeve, the lower portion of the bolt is inserted into the die cavity defined by the formwork, and the bolt can be fixed by screwing the screw to abut against the bolt inserted into the sleeve. The precise positioning of the bolt is ensured, so that the bolt does not deviate in the concrete pouring process; and after the concrete is poured and solidified, the positioning device can be dismantled and recycled.

Description

Technical Field

[0001] This utility model belongs to the field of prefabricated staircase technology, and specifically relates to a prefabricated prefabricated staircase sliding support bolt pre-embedded positioning device. Background Technology

[0002] Precast stairs are an essential structure for connecting the upper and lower floors of prefabricated buildings. When the existing precast stairs sliding support bolts are embedded in the mold cavity composed of templates, they are usually fixed by tying them to the steel bars. This often results in misalignment, which is time-consuming, labor-intensive, and prone to rework later. In order to solve the above problems, we propose a prefabricated stairs sliding support bolt pre-embedding positioning device. Utility Model Content

[0003] To address the aforementioned issues, this utility model provides a prefabricated staircase sliding support bolt pre-embedded positioning device, which solves the problem of easy bolt misalignment during pre-embedding.

[0004] This utility model is achieved through the following solution: a prefabricated sliding support bolt pre-embedded positioning device for assembled staircases, comprising:

[0005] The bracket is fixed to the upper part of the template by a locking component;

[0006] A sleeve for inserting bolts to be secured is fixed to the side of the bracket away from the template; and

[0007] Fastening components, mounted on the sleeve, are used to secure the bolts;

[0008] The fastening assembly includes a screw and a through-hole on the sleeve and communicating with the inside of the sleeve. The screw is screwed into the through-hole to tighten and fix the bolt inserted into the sleeve.

[0009] A further improvement of this utility model of prefabricated staircase sliding support bolt pre-embedded positioning device is that the fastening component also includes a nut fixed in the through-hole, and the screw is screwed into the through-hole through the nut.

[0010] A further improvement of this utility model of prefabricated staircase sliding support bolt pre-embedded positioning device is that the support includes a frame and a side plate connected to the side of the frame.

[0011] The locking assembly includes a screw, a first hole extending along the thickness direction of the side plate, and a second hole opened at the top of the template. The screw passes through the first hole and is screwed into the second hole to fix the bracket to the template.

[0012] A further improvement of this utility model of prefabricated staircase sliding support bolt pre-embedded positioning device is that the number of second holes is multiple, and the multiple second holes are spaced apart on the upper part of the template. The screw passes through the first hole and is selectively screwed into the second hole to realize the pre-embedded position of the adjustment bolt.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention uses a locking component to fix the bracket to the upper part of the template, and then inserts the bolt into the sleeve so that the lower part of the bolt is inserted into the mold cavity formed by the template. By tightening the screw to press the bolt inserted into the sleeve, the bolt can be fixed in place. This ensures that the bolt is accurately positioned so that it does not deviate during the concrete pouring process. After the concrete is poured and solidified, the positioning device can be removed and reused. Attached Figure Description

[0015] Figure 1 A schematic diagram of the overall structure of this utility model is shown.

[0016] In the diagram: 1. Template; 2. Frame; 3. Sleeve; 4. Bolt; 5. Nut; 6. Threaded rod; 7. Screw; 8. Second hole; 9. Side plate. Detailed Implementation

[0017] To address the problem of bolt misalignment during pre-embedded installation, this invention provides a bolt pre-embedded positioning device for prefabricated stair sliding supports. The following detailed description, in conjunction with the accompanying drawings, provides further explanation of this prefabricated stair sliding support bolt pre-embedded positioning device.

[0018] See Figure 1 As shown, a prefabricated staircase sliding support bolt pre-embedded positioning device includes:

[0019] The bracket is fixed to the upper part of the template 1 by a locking component;

[0020] A sleeve 3, into which the bolt 4 to be fixed is inserted, is fixed to the side of the bracket away from the template 1; and

[0021] Fastening components are mounted on sleeve 3 to secure bolt 4;

[0022] The fastening assembly includes a screw 6 and a through-hole on the sleeve 3 and communicating with the inside of the sleeve 3. The screw 6 is screwed into the through-hole and is used to tighten and fix the bolt 4 inserted into the sleeve 3.

[0023] The bracket is fixed to the upper part of the template 1 by locking the component, and then the bolt 4 is inserted into the sleeve 3 so that the lower part of the bolt 4 is inserted into the mold cavity formed by the template 1. By turning the screw 6 to press the bolt 4 inserted into the sleeve 3, the bolt 4 can be fixed. This ensures that the bolt 4 is accurately positioned so that it does not deviate during the concrete pouring process. After the concrete is poured and solidified, the positioning device can be removed and reused.

[0024] The fastening assembly also includes a nut 5 fixed inside the port, and the screw 6 is screwed into the port through the nut 5.

[0025] By turning the screw 6 in the nut 5, the distance between the screw 6 and the bolt 4 inserted into the sleeve 3 can be adjusted, which helps to adjust the insertion depth of the bolt 4. After the bolt 4 is inserted, the screw 6 is turned into the sleeve 3 and the bolt 4 is tightened and fixed, thereby fixing the bolt 4 and preventing it from shifting during the concrete pouring process.

[0026] The support includes a frame 2 and a side plate 9 connected to the side of the frame 2;

[0027] The locking assembly includes a screw 7, a first hole extending along the thickness direction of the side plate 9, and a second hole 8 opened at the top of the template 1. The screw 7 passes through the first hole and is screwed into the second hole 8 to fix the bracket to the template 1.

[0028] For details, please refer to Figure 1 As shown, frame 2 has a U-shaped structure, and there are two side plates 9, which are fixed to both sides of frame 2 respectively; the number of sleeves 3 can be adjusted according to actual usage requirements;

[0029] By adopting the above design, the bracket can be firmly fixed, making it more stable when supporting bolt 4, and ensuring the precise positioning of bolt 4.

[0030] There are multiple second holes 8, and multiple second holes 8 are spaced apart on the upper part of the template 1. The screw 7 passes through the first hole and is selectively screwed into the second hole 8 to realize the pre-embedded position of the adjustment bolt 4.

[0031] In this embodiment, the second hole 8 is a screw hole; by adopting the above design, the installation position of the bracket can be adjusted, thereby adjusting the position of the pre-embedded bolt 4 fixed in the sleeve 3, which is convenient to adjust according to actual usage requirements.

[0032] When the positioning device of this utility model needs to be removed: first, rotate the screw 6 in the opposite direction so that it is not in contact with the bolt 4, then rotate the screw 7 in the opposite direction so that it is disengaged from the second hole 8, and then lift the entire device upward to remove the positioning device.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] The present invention has been described in detail above with reference to the accompanying drawings and embodiments. Those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. A prefabricated sliding support bolt pre-embedded positioning device for assembled staircases, characterized in that, include: The bracket is fixed to the upper part of the template by a locking component; A sleeve for inserting bolts to be fixed is fixed to the side of the bracket away from the template; as well as Fastening components, mounted on the sleeve, are used to secure the bolts; The fastening assembly includes a screw and a through-hole on the sleeve and communicating with the inside of the sleeve. The screw is screwed into the through-hole to tighten and fix the bolt inserted into the sleeve.

2. The prefabricated staircase sliding support bolt pre-embedded positioning device as described in claim 1, characterized in that, The fastening assembly also includes a nut fixed inside the port, and the screw is screwed into the port through the nut.

3. The prefabricated staircase sliding support bolt pre-embedded positioning device as described in claim 1, characterized in that, The support includes a frame and side plates connected to the sides of the frame; The locking assembly includes a screw, a first hole extending along the thickness direction of the side plate, and a second hole opened at the top of the template. The screw passes through the first hole and is screwed into the second hole to fix the bracket to the template.

4. The prefabricated staircase sliding support bolt pre-embedded positioning device as described in claim 3, characterized in that, The second hole is multiple, and the multiple second holes are spaced apart on the upper part of the template. The screw passes through the first hole and is selectively screwed into the second hole to realize the pre-embedded position of the adjustment bolt.

Images