Foundation pit air film fixing device

Abstract

The utility model particularly relates to the technical field of building construction, and discloses a foundation pit air film fixing device which comprises a foundation, limiting seats, fasteners and angle steel, a first notch is formed in the surface of the foundation, flat iron is clamped in the first notch, the multiple limiting seats sequentially penetrate through the surface of the flat iron, and the fastening pieces are connected with the angle steel. Bottom plates are fixedly arranged at the bottom ends of the limiting seats, a plurality of first hole grooves are formed in the surface of the flat iron at equal intervals and used for allowing the limiting seats to be connected in an inserted mode, the first groove openings are filled with post-cast strips, and second groove openings are formed in the surface, close to the first groove openings, of the foundation. Through the arrangement of the limiting seat, the flat iron, the bottom plate and the post-cast strip, the first hole grooves are evenly formed in the surface of the flat iron, the convenience of installation and positioning of the limiting seat is improved, the bottom plate is rectangular, the contact area connected with the flat iron is increased, the flat iron and the limiting seat are clamped in the first groove openings, and the post-cast strip is clamped in the second groove openings. And then the post-cast strip is poured, so that the firmness and the precision of arrangement of the limiting seats are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction, and particularly relates to a fixing device for a foundation pit air film. Background Technique

[0002] The full name of the air film is the air-supported membrane structure. The air film is a new type of building form that emerges with the development of new materials and new technologies. The air film uses a special building fiber membrane material as the "outer shell", and forms a building space by supporting the "outer shell" through an automated pressurization and fresh air system. It is a new building form integrating technologies such as architecture, structural mechanics, new material science, mechatronics, and automatic control. The air film brings more green building concepts to fields such as industry, sports, warehousing, environmental protection, and coal logistics. When installing the air film, a fixing device is required to connect and seal the bottom end of the air film to the foundation pit.

[0003] Existing technical solutions such as the publication number: CN 212801956 U, a fixing device for an air film building, in which an installation groove is opened on the upper surface of the foundation, a buffer pad is arranged in the installation groove, a pressure strip is arranged on the buffer pad, and after the bottom edge of the air film is placed between the pressure strip and the buffer pad, it is fixed to the foundation through a plurality of fasteners. The fastener is an inverted U-shaped connecting piece. One end of the U-shaped connecting piece extends downward to abut against the top of the pressure strip, and the other end of the U-shaped connecting piece extends out with an installation support plate. An installation hole is arranged on the installation support plate, and an anchor bolt is fixedly arranged on the foundation corresponding to the installation hole. The installation support plate is fixedly connected to the foundation through the anchor bolt. The utility model can fix the air film structure, achieve the fixing effect without directly damaging the air film structure, effectively solve the problem of low safety caused by the insecure fixing of the air film, has a simple operation method, optimizes the design, ensures safety, simplifies the fixing process, enhances the stability and tightness of the air film fixing, and effectively improves the safety of the air film building fixing.

[0004] For the above technical solutions, there are the following technical problems: When using this kind of fixing device for the foundation pit air film, the anchor bolts need to be evenly poured on the surface of the foundation pit. When the anchor bolts are measured and constructed in a large area, it is time-consuming and laborious, and it is easy to generate construction errors, which affects the accuracy of the anchor bolt layout, and further affects the stability of the air film installation. Content of the Utility Model

[0005] The utility model provides a fixing device for a foundation pit air film, aiming to solve the problem that when using this kind of fixing device for the foundation pit air film, the anchor bolts need to be evenly poured on the surface of the foundation pit. When the anchor bolts are measured and constructed in a large area, it is time-consuming and laborious, and it is easy to generate construction errors, which affects the accuracy of the anchor bolt layout, and further affects the stability of the air film installation.

[0006] The utility model is realized as follows. A fixing device for a pneumatic film in a foundation pit includes a foundation, a limit seat, a fastener, and an angle steel. A notch one is formed on the surface of the foundation. A flat iron is clamped inside the notch one. A plurality of limit seats sequentially penetrate through the surface of the flat iron. Bottom plates are fixedly provided at the bottom ends of the limit seats. A plurality of hole slots one are equidistantly formed on the surface of the flat iron for the limit seats to be inserted. A post-cast strip is filled inside the notch one.

[0007] Preferably, a notch two is formed on the surface of the foundation near the notch one. A buffer pad is clamped inside the notch two. The buffer pad is strip-shaped and adapted to the internal size of the notch two. The buffer pad is made of rubber and has a rough surface, improving the firmness of the pneumatic film installation.

[0008] Preferably, a plurality of hole slots two are formed on the surfaces of the fasteners near the limit seats for the limit seats to be inserted. The model of the limit seat is M20 and the length is 40 mm. Nuts are threadedly connected to the top ends of the limit seats, improving the connection stability between the fasteners and the limit seats.

[0009] Preferably, a plurality of positioning blocks are fixedly provided at equal intervals on the inner side wall of the angle steel. The intervals between the positioning blocks are all 500 mm. Notch three are formed at the top ends of the positioning blocks. The internal sizes of the notch three are all adapted to the external sizes of one ends of the fasteners, improving the convenience of positioning and connecting the limit seats, fasteners, and angle steel.

[0010] Preferably, hole slots five are formed on the side walls of the angle steel near the positioning blocks. The hole slots five penetrate through the angle steel. Hole slots four are formed on the side walls of the positioning blocks. The hole slots four and the hole slots five are at the same horizontal position. The internal sizes of the hole slots four, hole slots five, and notch three are the same for bolt connection, improving the connection stability between the fasteners and the angle steel.

[0011] Preferably, the post-cast strip is made of concrete. The concrete strength grade of the post-cast strip is at least one grade higher than the concrete strength grade of the foundation, improving the firmness of the flat iron installation.

[0012] Compared with the prior art, the embodiments of the present application mainly have the following beneficial effects:

[0013] Firstly, by providing limit seats, flat irons, bottom plates, and post-cast strips, the hole slots one are evenly formed on the surface of the flat iron, improving the convenience of positioning and installing the limit seats. The bottom plates are rectangular, increasing the contact area with the flat iron for connection. The flat iron and the limit seats are clamped inside the notch one, and then the post-cast strip is poured, improving the firmness and accuracy of the limit seat layout. Secondly, by providing positioning blocks, the layout intervals of a plurality of positioning blocks are the same as those of the limit seats. One end of the fastener is inserted into the notch three, improving the convenience and stability of positioning and connecting the limit seats, fasteners, and angle steel. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the schematic side view three-dimensional structure of the present utility model.

[0015] Figure 2 This is the schematic front view installation structure of the anchor bolt of the present utility model.

[0016] Figure 3 This is the schematic side view sectional structure of the foundation of the present utility model.

[0017] Figure 4 This is the schematic side view installation structure of the angle steel of the present utility model.

[0018] Figure 5 This is the schematic front view three-dimensional structure of the present utility model.

[0019] The reference numerals are: 1, foundation; 2, limit seat; 3, fastener; 4, angle steel; 5, flat iron; 6, notch one; 7, notch two; 8, buffer pad; 9, positioning block; 10, bottom plate; 11, hole groove one; 12, post-cast strip; 13, hole groove two; 14, hole groove three; 15, notch three; 16, hole groove four; 17, hole groove five. Specific embodiments

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this application or the above drawings are used to distinguish different objects and not to describe a specific order.

[0021] Reference herein to "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of this application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0022] Please refer to Figures 1-5, an embodiment provided by the present utility model: a foundation pit air film fixing device, which includes a foundation 1, a limit seat 2, a fastener 3 and an angle steel 4. The foundation 1 is made of concrete and is the foundation of a building. A notch one 6 is opened on the surface of the foundation 1, and the notch one 6 can be reserved during the pouring of the foundation 1. A flat iron 5 is clamped inside the notch one 6. A number of limit seats 2 sequentially penetrate the surface of the flat iron 5. The bottom ends of the limit seats 2 are fixedly provided with bottom plates 10 to form an integral structure. A number of hole slots one 11 are equidistantly opened on the surface of the flat iron 5 for the limit seats 2 to be inserted. The distance between adjacent hole slots one 11 is 500 mm. Sequentially inserting a number of limit seats 2 into the hole slots one 11 improves the positioning accuracy of the installation of the limit seats 2. Welding the bottom plate 10 to the side wall of the flat iron 5 can improve the connection stability between the limit seat 2 and the flat iron 5. The bottom plate 10 is rectangular, which can increase the contact area and improve the connection stability between the limit seat 2 and the flat iron 5. After chiseling and cleaning the side wall of the notch one 6, the connected limit seat 2 and flat iron 5 are clamped at the inner bottom of the notch one 6. The notch one 6 is filled with a post-cast strip 12. The post-cast strip 12 is made of fine aggregate concrete. The concrete strength grade of the post-cast strip 12 is at least one level higher than that of the foundation 1. After the post-cast strip 12 solidifies, the foundation 1 and the post-cast strip 12 can be connected into one body, improving the firmness of the installation of the flat iron 5. The flat iron 5 increases the contact area with the limit seat 2 and the post-cast strip 12, improving the overall stability of the connection between the limit seat 2 and the foundation 1, thereby improving the firmness and accuracy of the layout of the limit seat 2. A notch two 7 is opened on the surface of the foundation 1 close to the notch one 6. A buffer pad 8 is clamped inside the notch two 7. The buffer pad 8 is strip-shaped and is adapted to the internal size of the notch two 7. The buffer pad 8 is made of rubber and has a rough surface. The air film is inserted into the gap between the buffer pad 8 and the angle steel 4, improving the firmness of the installation of the air film. A number of hole slots two 13 are opened on the surface of a number of fasteners 3 close to the limit seat 2 for the limit seat 2 to be inserted. The model of the limit seat 2 is M20 and the length is 40 mm. Nuts are threadedly connected to the top ends of the limit seats 2, improving the connection stability between the fastener 3 and the limit seat 2. The other end of the fastener 3 supports on the inner bottom of the angle steel 4, thereby generating a vertical pressure, and thus clamping the air film between the buffer pad 8 and the angle steel 4 to realize the fixation of the air film.

[0023] A number of positioning blocks 9 are equidistantly fixed on the inner side wall of the angle steel 4. The distance between the positioning blocks 9 is 500 mm. Groove mouths three 15 are opened at the top ends of the positioning blocks 9. The internal sizes of the groove mouths three 15 are all adapted to the external sizes of one end of the fastener 3, improving the convenience of the connection positioning between the limit seat 2, the fastener 3 and the angle steel 4.

[0024] On the side walls of the angle steel 4 close to the positioning blocks 9, there are through holes 17 (slot five), the through holes 17 penetrate through the angle steel 4, on the side walls of the positioning blocks 9, there are through holes 16 (slot four), the through holes 16 and the through holes 17 are at the same horizontal position, and the internal dimensions of the through holes 16, the through holes 17 and the through holes 14 are the same for bolt connection. When the bolts are sequentially screwed into the through holes 17, the through holes 14 and the through holes 16, the connection stability between the fasteners 3 and the angle steel 4 is improved.

[0025] Working principle: When using this kind of foundation pit air film fixing device, the operator first inserts a plurality of limit seats 2 into the through holes 11 (slot one) in sequence. The distance between adjacent through holes 11 is 500 mm, which improves the installation and positioning accuracy of the through holes 11. Then, the bottom plate 10 and the flat iron 5 are welded together. The bottom plate 10 is rectangular, which increases the welding contact surface and improves the connection firmness between the limit seat 2 and the flat iron 5. Then, the connected limit seat 2 and flat iron 5 are clamped into the notch 6 (slot one). Then, the post-cast strip 12 is poured into the notch 6. The concrete is the existing technology and will not be elaborated here. After the post-cast strip 12 solidifies, the foundation 1 and the post-cast strip 12 can be connected into one body. The flat iron 5 increases the contact area between the limit seat 2 and the post-cast strip 12 and improves the installation stability of the limit seat 2, improving the firmness and accuracy of the layout of the limit seat 2. The buffer pad 8 is clamped at the inner bottom of the notch 7 (slot two), the edge of the air film is laid on the top of the buffer pad 8, then the angle steel 4 is pressed on the surface of the air film, and one end of the fastener 3 is inserted into the through holes 15 (slot three) in sequence, which improves the convenience of installation and positioning of the fastener 3 and the angle steel 4. When the bolts are sequentially screwed into the through holes 17, the through holes 14 and the through holes 16, the connection stability between the fastener 3 and the angle steel 4 is improved. The distance between the fasteners 3 is the same as the layout distance between the positioning blocks 9 and the limit seats 2, which improves the convenience of connection and positioning of the limit seats 2, the fasteners 3 and the angle steel 4. The operator sleeves the through holes 13 (slot two) on the outer surface of the limit seat 2 in sequence, and then screws the nuts onto the top of the limit seat 2 in sequence to limit the displacement of the fastener 3, so that the fastener 3 supports on the top of the angle steel 4, causing the angle steel 4 to generate a vertical pressure, so that the air film is firmly clamped between the angle steel 4 and the buffer pad 8.

[0026] It should be noted that for the foregoing embodiments, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art should know that the present invention is not limited by the described action sequence, because according to the present invention, certain steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0027] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the above-mentioned units may have other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed coupling or communication connection between each other can be through some interfaces. The indirect coupling or communication connection between devices or units can be in the form of telecommunications or other forms.

[0028] The units described above as separate components may or may not be physically separated. The components displayed as units may or may not be physical units, that is, they can be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0029] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the protection scope of the invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict and without creative work, combine, add, delete or make other adjustments to the features in the embodiments of the present invention according to the situation, so as to obtain different technical solutions that are essentially not divorced from the concept of the present invention. These technical solutions also belong to the scope of protection of the present invention.

Claims

1. A foundation pit air film fixing device, characterized in that: The invention comprises a foundation (1), a limiting seat (2), a fastener (3) and an angle steel (4): a notch (6) is provided on the surface of the foundation (1), a flat iron (5) is clamped inside the notch (6), a plurality of limiting seats (2) sequentially penetrate the surface of the flat iron (5), a bottom plate (10) is fixed at the bottom end of each limiting seat (2), a plurality of holes (11) are provided at equal intervals on the surface of the flat iron (5) for the limiting seat (2) to be plugged in, and a post-casting strip (12) is filled inside the notch (6).

2. A foundation pit air film fixing device according to claim 1, characterized in that: The foundation (1) is provided with a second slot (7) on its surface near the first slot (6), and a buffer pad (8) is clamped inside the second slot (7). The buffer pad (8) is in the shape of a long strip and matches the internal size of the second slot (7). The buffer pad (8) is made of rubber and has a rough surface.

3. The foundation pit air film fixing device according to claim 1, characterized in that: Several fasteners (3) are provided with second hole grooves (13) on the surfaces close to the limit seat (2) for the limit seat (2) to be plugged in. The limit seat (2) is of M20 model and 40 mm in length. The top of the limit seat (2) is threadedly connected with a nut.

4. The foundation pit air film fixing device according to claim 2, characterized in that: A plurality of positioning blocks (9) are fixedly arranged at equal intervals on the inner wall of the angle steel (4), the spacing between the positioning blocks (9) is 500 mm, and the top of each positioning block (9) is provided with a slot three (15), the internal dimensions of which are compatible with the external dimensions of one end of the fastener (3).

5. The foundation pit air film fixing device according to claim 1, characterized in that: The angle steel (4) is provided with a hole slot five (17) on the side wall near the positioning block (9), and the hole slot five (17) passes through the angle steel (4). The positioning block (9) is provided with a hole slot four (16) on the side wall, and the hole slot four (16) and the hole slot five (17) are located at the same horizontal position. The internal dimensions of the hole slot four (16), the hole slot five (17) and the hole slot three (14) are the same for bolt connection.

6. The foundation pit air film fixing device according to claim 1, characterized in that: The post-cast strip (12) is made of concrete, and the concrete strength grade of the post-cast strip (12) is at least one grade higher than the concrete strength grade of the foundation (1).

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