Prefabricated stair embedded bolt positioning device

Abstract

The utility model discloses an embedded bolt positioning device for an assembly type stair, and relates to the technical field of assembly type stairs. Comprising an embedded part body, a stair plate is installed at the front end of the embedded part body, two connecting blocks are installed at the left end and the right end of the embedded part body respectively, a first installing groove is formed in the front end of the upper surface of the embedded part body, a second installing groove is formed in the upper end of the stair plate, and L-shaped connecting plates are installed in the first installing groove and the second installing groove; movable grooves are formed in the two sides of the L-shaped connecting plate, nuts are installed in the middles of the movable grooves, sliding blocks are installed at the two opposite ends of the nuts, sliding grooves are formed in the side walls of the movable grooves, fixing bolts are in threaded connection with the interiors of the nuts, first threaded holes are formed in the bottom of the first mounting groove, and second threaded holes are formed in the bottom of the second mounting groove; a fixing plate is installed in the middle of the end, close to the embedded part body, of the stair plate, a fixing groove is formed in the middle of the front side of the embedded part body, and a plurality of escalator holes are formed in the upper surface of the stair plate.

Description

Technical Field

[0001] The utility model relates to the technical field of assembled staircases, in particular to a pre-embedded bolt positioning device for assembled staircases. Background Art

[0002] With the improvement of processing precision and quality of prefabricated components, construction technology and management level of prefabricated and assembled construction, especially the trend of residential construction in my country towards industrialization, the application of prefabricated and assembled buildings has gradually heated up and shown a rapid development trend. In order to promote the pace of industrialization and modernization of the construction industry, some companies, based on the principle of from simple to complex, start with prefabricated and assembled stairs, taking this as a pilot to gradually promote prefabricated building structures. However, judging from the feedback from most projects, there are still certain difficulties in the construction technology of prefabricated and assembled stairs, which has always restricted the promotion and application of prefabricated stairs.

[0003] Technicians engaged in this industry have found that the internal structure of the embedded bolt positioning device is relatively simple. When in use, most of them still need to use other fixing tools to carry out installation and positioning work. A slight carelessness may cause the installation position of the device to shift, thereby affecting the use effect. Moreover, most of the embedded bolts are directly fixed to the stair beam steel bars. This method can easily cause the embedded bolts to shift during the concrete pouring process, thereby affecting the installation of the stairs. For this reason, we propose an assembled staircase embedded bolt positioning device. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the internal structure of the embedded bolt positioning device is relatively simple. When in use, most of them still need to use other fixing tools to carry out installation and positioning work. If you are not careful, it may cause the installation position of the device to shift, thereby affecting the use effect. Moreover, most of the embedded bolts are directly fixed to the stair beam steel bars. This method easily causes the embedded bolts to shift during the concrete pouring process, thereby affecting the installation of the stairs. The utility model provides an assembled staircase embedded bolt positioning device.

[0005] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0006] An assembled staircase embedded bolt positioning device comprises an embedded part body, a stair slab is installed at the front end of the embedded part body, two connecting blocks are installed at the left and right ends of the embedded part body respectively, a first mounting groove is opened at the front end of the upper surface of the embedded part body, a second mounting groove is opened at the upper end of the stair slab, and the first mounting groove is connected with the second mounting groove, an L-shaped connecting plate is installed in the first mounting groove and the second mounting groove, movable grooves are opened on both sides of the L-shaped connecting plate, a cover plate is installed at the top of the movable groove, a nut is installed in the middle of the movable groove, and the nut is connected to the Slide blocks are installed at both ends of the pair, a slide groove is provided on the side wall of the movable groove, the slide block is movably installed in the slide groove, a fixing bolt is threadedly connected in the nut, a first threaded hole is provided at the bottom of the first installation groove, a second threaded hole is provided at the bottom of the second installation groove, the fixing bolt is movably installed in the first threaded hole and the second threaded hole, a fixing plate is installed in the middle of one end of the stair board close to the embedded part body, a fixing groove is provided in the middle of the front side of the embedded part body, the fixing plate is movably installed in the fixing groove, and a plurality of escalator holes are provided on the upper surface of the stair board.

[0007] Furthermore, the sizes of the first mounting groove and the second mounting groove are consistent with the sizes of the L-shaped connecting plate.

[0008] Furthermore, the cross-sectional dimension of the movable groove is consistent with the cross-sectional dimension of the cover plate.

[0009] Furthermore, the vertical cross-sectional dimension of the sliding block is consistent with the vertical cross-sectional dimension of the sliding groove.

[0010] Furthermore, the top end of the fixing bolt is lower than the top end of the movable groove.

[0011] Furthermore, the size of the external thread formed on the circumferential surface of the fixing bolt is consistent with the size of the internal thread formed inside the first threaded hole and the second threaded hole.

[0012] Furthermore, the size of the fixing plate is consistent with the size of the fixing groove.

[0013] The beneficial effects of the utility model are as follows:

[0014] 1. When the utility model is in use, the stair slab is first installed in the fixing groove opened on the front side of the embedded part body through the fixing plate to stabilize the stair slab, and then the L-shaped connecting plate is installed in the first installation groove and the second installation groove. When the position of the nut deviates from the first threaded hole and the second threaded hole, the slider is moved in the slide groove, thereby moving with the nut, so that the nut moves to just above the first threaded hole and the second threaded hole, and then the fixing bolt is installed in the first threaded hole and the second threaded hole to increase the stability of the stair slab and avoid the deviation of the nut threaded hole affecting the use of the fixing bolt.

[0015] 2. When the utility model is in use, when the size of the first mounting groove and the second mounting groove is consistent with the size of the L-shaped connecting plate, the gap between the L-shaped connecting plate and the first mounting groove and the second mounting groove can be reduced, so that the L-shaped connecting plate can stabilize and reinforce the stair plate and the embedded part body.

[0016] 3. When the utility model is in use, it is possible to reduce the gap between the slider and the slide groove, thereby ensuring the stability of the nut. In the process of connecting the stair slab with the embedded part body, when the fixing bolt is installed in the first threaded hole and the second threaded hole, the position of the slider is adjusted to move with the nut, so that the fixing bolt is stably installed in the first threaded hole and the second threaded hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a top view of the utility model;

[0019] Figure 3 It is a cross-sectional view of the main body of the embedded part of the utility model;

[0020] Figure 4 It is a cross-sectional view of an L-shaped connecting plate of the utility model.

[0021] Figure numerals: 1. embedded part body; 2. stair board; 3. connecting block; 4. first mounting groove; 5. second mounting groove; 6. L-shaped connecting plate; 7. movable groove; 8. cover plate; 9. nut; 10. slider; 11. slide groove; 12. fixing bolt; 13. first threaded hole; 14. second threaded hole; 15. fixing plate; 16. fixing groove; 17. escalator hole. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0023] See also Figure 1-Figure 4The utility model provides an assembled staircase embedded bolt positioning device, including an embedded component body 1, a stair slab 2 is installed at the front end of the embedded component body 1, two connecting blocks 3 are installed at the left and right ends of the embedded component body 1, a first mounting groove 4 is opened at the front end of the upper surface of the embedded component body 1, a second mounting groove 5 is opened at the upper end of the stair slab 2, and the first mounting groove 4 is connected to the second mounting groove 5, an L-shaped connecting plate 6 is installed in the first mounting groove 4 and the second mounting groove 5, and movable grooves 7 are opened on both sides of the L-shaped connecting plate 6, a cover plate 8 is installed at the top of the movable groove 7, and a nut 9 is installed in the middle of the movable groove 7, and the nut 9 is relative to the Slide blocks 10 are installed at both ends, slide blocks 11 are opened on the side walls of the movable groove 7, the slide blocks 10 are movably installed in the slide blocks 11, a fixing bolt 12 is threadedly connected in the nut 9, a first threaded hole 13 is opened at the bottom of the first installation groove 4, a second threaded hole 14 is opened at the bottom of the second installation groove 5, the fixing bolt 12 is movably installed in the first threaded hole 13 and the second threaded hole 14, a fixing plate 15 is installed in the middle of one end of the stair tread 2 close to the embedded part body 1, a fixing groove 16 is opened in the middle of the front side of the embedded part body 1, the fixing plate 15 is movably installed in the fixing groove 16, and a plurality of escalator holes 17 are opened on the upper surface of the stair tread 2.

[0024] In this embodiment, preferably, the size of the first mounting groove 4 and the second mounting groove 5 is consistent with the size of the L-shaped connecting plate 6; when the size of the first mounting groove 4 and the second mounting groove 5 is consistent with the size of the L-shaped connecting plate 6, the gap between the L-shaped connecting plate 6 and the first mounting groove 4 and the second mounting groove 5 can be reduced, so that the L-shaped connecting plate 6 can stably reinforce the stair plate 2 and the embedded part body 1.

[0025] In this embodiment, preferably, the cross-sectional dimension of the movable groove 7 is consistent with the cross-sectional dimension of the cover plate 8; when the cross-sectional dimension of the movable groove 7 is consistent with the cross-sectional dimension of the cover plate 8, the gap between the movable groove 7 and the cover plate 8 can be reduced, thereby preventing the cover plate 8 from falling off from the movable groove 7.

[0026] In the present embodiment, preferably, the vertical cross-sectional dimension of the slider 10 is consistent with the vertical cross-sectional dimension of the slide groove 11; when the vertical cross-sectional dimension of the slider 10 is consistent with the vertical cross-sectional dimension of the slide groove 11, the gap between the slider 10 and the slide groove 11 can be reduced, thereby ensuring the stability of the nut 9, so that in the process of connecting the stair slab 2 with the embedded part body 1, when the fixing bolt 12 is installed in the first threaded hole 13 and the second threaded hole 14, the nut 9 is moved by adjusting the position of the slider 10, so that the fixing bolt 12 is stably installed in the first threaded hole 13 and the second threaded hole 14.

[0027] In the present embodiment, preferably, the top end of the fixing bolt 12 is lower than the top end of the movable groove 7. By making the top end of the fixing bolt 12 lower than the top end of the movable groove 7, it can ensure that when the cover plate 8 is installed in the movable groove 7, the top end of the cover plate 8 does not protrude from the top end of the movable groove 7, thereby affecting the appearance and causing harm to the user.

[0028] In this embodiment, preferably, the size of the external thread opened on the circumferential surface of the fixing bolt 12 is consistent with the size of the internal thread opened inside the first threaded hole 13 and the second threaded hole 14; when the size of the external thread opened on the circumferential surface of the fixing bolt 12 is consistent with the size of the internal thread opened inside the first threaded hole 13 and the second threaded hole 14, it can prevent the fixing bolt 12 from shaking, thereby affecting the stability of the stair board 2.

[0029] In this embodiment, preferably, the size of the fixing plate 15 is consistent with the size of the fixing groove 16; when the size of the fixing plate 15 is consistent with the size of the fixing groove 16, the gap between the fixing plate 15 and the fixing groove 16 can be reduced, so that the fixing plate 15 can be more stably installed in the fixing groove 16, thereby improving the stability of the stair plate 2.

[0030] The working principle and use process of the utility model are as follows: when the device is used, the stair tread 2 is first installed in the fixing groove 16 opened on the front side of the embedded part main body 1 through the fixing plate 15 to stabilize the stair tread 2, and then the L-shaped connecting plate 6 is installed in the first installation groove 4 and the second installation groove 5. When the position of the nut 9 deviates from the first threaded hole 13 and the second threaded hole 14, the slider 10 is moved in the slide groove 11, thereby moving with the nut 9, and the nut 9 is moved to the top of the first threaded hole 13 and the second threaded hole 14, and then the fixing bolt 12 is installed in the first threaded hole 13 and the second threaded hole 14 to increase the stability of the stair tread 2, and at the same time avoid the deviation of the threaded hole of the nut 9 affecting the use of the fixing bolt 12.

[0031] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pre-embedded bolt positioning device for assembled stairs, characterized in that: The invention comprises an embedded component body (1), a staircase board (2) is installed at the front end of the embedded component body (1), two connecting blocks (3) are installed at the left and right ends of the embedded component body (1), a first installation groove (4) is opened at the front end of the upper surface of the embedded component body (1), a second installation groove (5) is opened at the upper end of the staircase board (2), and the first installation groove (4) is connected with the second installation groove (5), an L-shaped connecting plate (6) is installed in the first installation groove (4) and the second installation groove (5), movable grooves (7) are opened on both sides of the L-shaped connecting plate (6), a cover plate (8) is installed at the top of the movable groove (7), a nut (9) is installed in the middle of the movable groove (7), and sliders (10) are installed at the opposite ends of the nut (9), and the movable groove (7) is provided with a cover plate (8). A sliding groove (11) is provided on the side wall of the groove (7), the sliding block (10) is movably installed in the sliding groove (11), a fixing bolt (12) is threadedly connected in the nut (9), a first threaded hole (13) is provided at the bottom of the first installation groove (4), a second threaded hole (14) is provided at the bottom of the second installation groove (5), the fixing bolt (12) is movably installed in the first threaded hole (13) and the second threaded hole (14), a fixing plate (15) is installed in the middle of one end of the stair tread (2) close to the embedded component body (1), a fixing groove (16) is provided in the middle of the front side of the embedded component body (1), the fixing plate (15) is movably installed in the fixing groove (16), and a plurality of escalator holes (17) are provided on the upper surface of the stair tread (2).

2. The embedded bolt positioning device for assembled stairs according to claim 1, characterized in that: The dimensions of the first mounting groove (4) and the second mounting groove (5) are consistent with the dimensions of the L-shaped connecting plate (6).

3. The embedded bolt positioning device for assembled stairs according to claim 1, characterized in that: The cross-sectional dimensions of the movable groove (7) are consistent with the cross-sectional dimensions of the cover plate (8).

4. The embedded bolt positioning device for assembled stairs according to claim 1, characterized in that: The vertical cross-sectional dimensions of the sliding block (10) are consistent with the vertical cross-sectional dimensions of the sliding groove (11).

5. The embedded bolt positioning device for assembled stairs according to claim 1, characterized in that: The top end of the fixing bolt (12) is lower than the top end of the movable groove (7).

6. The embedded bolt positioning device for assembled stairs according to claim 1, characterized in that: The size of the external thread formed on the circumferential surface of the fixing bolt (12) is consistent with the size of the internal thread formed inside the first threaded hole (13) and the second threaded hole (14).

7. The embedded bolt positioning device for assembled stairs according to claim 1, characterized in that: The size of the fixing plate (15) is consistent with the size of the fixing groove (16).

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