Support-free prefabricated slab

Abstract

The utility model discloses a support-free precast slab, which comprises a slab body and a rabbet arranged on the slab body, the rabbet is arranged corresponding to the edge position of the slab body, a water blocking component and an elastic pressing plate used for extruding the water blocking component are arranged in the rabbet, one end of the elastic pressing plate is connected with the rabbet, and the other end of the elastic pressing plate is connected with the rabbet. One end of the elastic pressing plate is connected with the tongue-and-groove, the other end of the elastic pressing plate obliquely extends towards the middle position of the tongue-and-groove from the connecting position of the elastic pressing plate and the tongue-and-groove, an angle groove is formed between the elastic pressing plate and the inner wall of the tongue-and-groove on one side connected with the elastic pressing plate, and the tongue-and-groove position can be sealed after the plate body is connected with an external prefabricated plate through the tongue-and-groove. And after being connected with an external prefabricated slab, the connector is good in sealing performance, high in connection stability, convenient to install and capable of saving labor cost.

Description

TECHNICAL FIELD

[0001] The utility model relates to precast slab technical field, concretely is a kind of exempt from support precast slab. BACKGROUND

[0002] In modern construction industry, precast slab is widely used in various construction projects from residential to commercial buildings due to its factory production, fast construction speed and other advantages. The existing precast slab has poor waterproof performance at the joint, and the previous precast slab rebate design is simple and mainly used for stable connection of plate body and plate body. It does not have a waterproof sealing structure. When there is water on the precast slab, water can seep through the rebate position, easily corrode the steel bars, reduce the strength of the building structure, affect the service life of the building, increase the maintenance cost, especially in the southern rainy area, the wall surface is moldy and falls off frequently due to poor waterproof performance at the joint of precast slab. The rebate structure of the existing precast slab is simple, the connection stability is poor, and it cannot meet the needs of existing buildings. SUMMARY

[0003] In view of the deficiencies of the prior art, the utility model aims to provide an exempt from support precast slab to solve the poor sealing and waterproof performance of the existing precast slab rebate joint and the low connection stability.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an exempt from support precast slab, comprising a plate body and a rebate provided on the plate body, the rebate is provided corresponding to the edge position of the plate body, a water blocking component and an elastic pressing plate for pressing the water blocking component are provided in the rebate, one end of the elastic pressing plate is connected with the rebate, and the other end of the elastic pressing plate extends obliquely from the connection between the elastic pressing plate and the rebate towards the middle position of the rebate, an angle groove is formed between the elastic pressing plate and the inner wall of the rebate on the side connected with the elastic pressing plate, and the rebate position of the plate body can form a seal after being connected with an external precast slab through the rebate.

[0005] As a further improvement of the utility model, the elastic pressing plate is provided corresponding to the inner side wall of the rebate near the upper end surface of the plate body.

[0006] As a further improvement of the utility model, the water blocking component is a rubber bag with water blocking glue, and the rubber bag is provided corresponding to the position in the angle groove near the connection between the elastic pressing plate and the rebate.

[0007] As a further improvement of the utility model, a containing groove and a flow guide groove for containing the rubber bag are provided in the side wall of the rebate connected with the elastic pressing plate, the flow guide groove is provided circumferentially along the inner side wall of the rebate near the upper end surface of the plate body, and the flow guide groove is communicated with the containing groove.

[0008] As a further improvement of the utility model, the plate body is a quadrilateral plate body, and the plate body is provided with at least four notches and is provided with four notches corresponding to four corners of the quadrilateral plate body respectively.

[0009] As a further improvement of the utility model, the lower end of each notch is provided with a plug-in groove for cooperating with the external prefabricated plate.

[0010] Compared with the prior art, the utility model provides a support-free prefabricated plate, which has the following beneficial effects: the water blocking component in the notch of the scheme is matched with the elastic pressing plate, when the plate bodies are butted, the elastic pressing plate is deformed by extrusion, the water blocking component is strongly extruded, the water blocking component is tightly filled in the notch gap, water penetration can be effectively blocked, the waterproof capability of the building is greatly improved, the risk of structural damage caused by water seepage is reduced, and the service life of the building is prolonged, when the plate bodies are butted, the construction personnel can directly butt the plate bodies, the construction period is shortened, the engineering progress is accelerated, and the labor and time cost inputs are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a partial perspective view of the utility model;

[0012] Figure 2 It is a top view structure schematic view of the utility model;

[0013] Figure 3 It is a structure schematic view of the inner wall of the local notch of the utility model.

[0014] Reference signs: 1, plate body; 2, notch; 3, elastic pressing plate; 4, corner groove; 5, rubber bag; 6, containing groove; 7, flow guide groove; 8, plug-in groove. DETAILED DESCRIPTION

[0015] The embodiment of the utility model as shown in the figure, in order to achieve the above object, the utility model provides a support-free prefabricated plate, including plate body 1 and the notch 2 of setting on plate body 1, the notch 2 is set to the edge position of plate body 1, the notch 2 is provided with water blocking component and the elastic pressing plate 3 for extruding water blocking component, the elastic pressing plate 3 one end is connected with the notch 2, the other end from the connecting place of elastic pressing plate 3 and the notch 2 towards the middle position of the notch 2 extends obliquely, the elastic pressing plate 3 and the inner wall of the notch 2 of the side connected with it form corner groove 4, the plate body 1 can form sealing after being connected with the external prefabricated plate through the notch 2, the elastic pressing plate 3 is set to the inner wall close to the upper end face of plate body 1 in the notch 2.

[0016] In the implementation of the scheme, the construction personnel need to ensure that the plate body 1 has no cracks, damage and other problems, and at the same time confirm that the water blocking part and the elastic pressing plate 3 in the tongue and groove 2 are intact and installed in place, and then prepare two prefabricated plates that need to be spliced, that is, the plate body 1 and the external prefabricated plate in the scheme. The elastic pressing plate 3 is arranged in the inner side wall of the tongue and groove 2 close to the upper end surface of the plate body 1, one end of the elastic pressing plate 3 is stably connected with the tongue and groove 2, and the other end extends to the middle of the tongue and groove 2 and forms an angle groove 4 with the inner wall of the tongue and groove 2. The water blocking part is placed in the angle groove 4, and the water blocking part can be made of rubber strips and other materials that can be deformed under pressure and have good waterproof performance. The water blocking part is preliminarily fixed by the elasticity of the elastic pressing plate 3, so that the water blocking part is tightly fitted in the angle groove 4. Then, the plate body 1 is butted. The tongue and groove 2 of the two prefabricated plates are placed corresponding to each other and slowly pushed, so that the two plate bodies 1 gradually approach each other. With the butt joint of the tongue and groove 2, the elastic pressing plate 3 will be further deformed due to the extrusion of the tongue and groove 2 of the other plate body 1. At this time, the water blocking part can be deformed under pressure and fill the gap at the connection of the tongue and groove 2. In this process, the construction personnel should observe the position of the plate body 1 to ensure that the two plate bodies 1 are butted in place and avoid misalignment. After the butt joint is completed, the sealing effect of the connection of the tongue and groove 2 is checked.

[0017] The water blocking part is a rubber bag 5 with water blocking glue, and the rubber bag 5 is arranged corresponding to the position of the angle groove 4 close to the connection of the elastic pressing plate 3 and the tongue and groove 2. The side wall of the tongue and groove 2 connected with the elastic pressing plate 3 is provided with a containing groove 6 and a flow guide groove 7 for containing the rubber bag 5. The flow guide groove 7 is arranged along the inner side wall of the tongue and groove 2 close to the upper end surface of the plate body 1 in the circumferential direction, and the flow guide groove 7 is communicated with the containing groove 6.

[0018] In the implementation of the scheme, the rubber bag 5 is placed in the containing groove 6 on the side wall of the tongue and groove 2 connected with the elastic pressing plate 3, and the rubber bag 5 corresponds to the position of the angle groove 4 close to the connection of the elastic pressing plate 3 and the tongue and groove 2. When the two prefabricated plates are butted, the tongue and groove 2 of one prefabricated plate is slowly close to the tongue and groove 2 of the other prefabricated plate. With the advancement of butt joint, the elastic pressing plate 3 is gradually deformed under extrusion and further applies pressure to the rubber bag 5 in the containing groove 6. Since the rubber bag 5 contains water blocking glue, under the action of pressure, the rubber bag 5 is broken, and the water blocking glue flows out through the flow guide groove 7. The flow guide groove 7 is arranged along the inner side wall of the tongue and groove 2 close to the upper end surface of the plate body 1 in the circumferential direction and is communicated with the containing groove 6, so as to guide the water blocking glue to be uniformly distributed in the gap at the connection of the tongue and groove 2. After the butt joint is completed, the water blocking glue is waited to be solidified and formed. Then, the person skilled in the art can check whether the water blocking glue is completely solidified and forms a seal. If there is local unsealed, manual glue injection can be used for repair to ensure the overall waterproofness. The structure is simple and the operation is convenient.

[0019] The plate body 1 is a quadrilateral plate body 1, and the plate body 1 is provided with at least four tongue and grooves 2 and corresponds to the four corners of the quadrilateral plate body 1 respectively.

[0020] In the implementation of the scheme, preferably, the quadrilateral plate body 1 is adopted, and the notches 2 are four respectively corresponding to the four corners of the quadrilateral plate body 1. The small number of notches 2 can reduce the influence on the strength of the plate body 1, and the notches 2 arranged at the four corners can position the four corners of the plate body 1, and the connection is more stable and better.

[0021] The lower end of each notch 2 is provided with a slot 8 for cooperating with the external prefabricated plate. In the implementation of the scheme, the slot 8 is arranged. When two prefabricated plates are connected, the positions of the two notches 2 are correspondingly connected. At this time, the slot 8 on one prefabricated plate can also be inserted and matched with the structure on the prefabricated plate connected therewith. This structure can be an insertion block arranged on the external prefabricated plate. After connection, the stability is better and it is not easy to shake.

[0022] The above is only the preferred embodiment of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solution falling within the concept of the present application belongs to the protection scope of the present application. It should be noted that for ordinary skilled in the art, some improvements and decorations without departing from the principles of the present application are also considered as the protection scope of the present application.

Claims

1. A self-supporting precast panel comprising a panel body and a tongue and groove arrangement provided on the panel body, characterized in that, The groove is provided at the edge position of the plate body, a water blocking component and an elastic pressing plate for pressing the water blocking component are arranged in the groove, one end of the elastic pressing plate is connected with the groove, the other end of the elastic pressing plate extends from the connection position of the elastic pressing plate and the groove towards the middle position of the groove, an angle groove is formed between the elastic pressing plate and the inner wall of the groove on the side connected with the elastic pressing plate, and the groove position of the plate body can form a seal after the plate body is connected with the external prefabricated plate through the groove.

2. The free standing preform of claim 1, wherein, The elastic pressing plate is arranged at the inner wall of the groove near the upper end face of the plate body.

3. The self-supporting preform of claim 1, wherein The water blocking component is a rubber bag with water blocking glue, and the rubber bag is arranged at the position near the elastic pressing plate and the connection position of the groove in the angle groove.

4. The self-supporting preform of claim 3, wherein, The side wall on the side connected with the elastic pressing plate of the groove is provided with a containing groove and a flow guide groove for containing the rubber bag, the flow guide groove is arranged along the inner wall of the groove near the upper end face of the plate body in the circumferential direction, and the flow guide groove is communicated with the containing groove.

5. The self-supporting preform of claim 1 or 2 or 3 or 4, wherein, The plate body is a quadrilateral plate body, the plate body is provided with at least four grooves and is arranged at four corners of the quadrilateral plate body respectively.

6. The self-supporting preform of claim 1 or 2 or 3 or 4, wherein, The lower end of each groove is provided with a plug-in groove for cooperating with the external prefabricated plate.

Images