A composite shear wall composed of PCF boards

Abstract

The utility model discloses a composite shear wall of PCF boards, including a shear wall with steel bars preset therein, on which a plurality of grouting tubes for grouting are provided; a slurry outlet of the shear wall is extended out of the end thereof for connecting the plurality of grouting tubes; and a plugging assembly arranged at the end of the slurry outlet, including elastic paddles arranged in a circumferential array, the elastic paddles being pushed by a grouting gun to open the slurry outlet. The composite shear wall of PCF boards is designed with elastic paddles to prevent foreign matter from entering the grouting tubes during transportation, thereby avoiding blockage of the grouting tubes. During the grouting process, the elastic paddles clamp the grouting gun to prevent it from falling off, while the elastic paddles in the remaining slurry outlets still play a plugging role, so that the operator does not need to plug the slurry outlet with a rubber plug when the slurry gushes out, thereby reducing operations, and can also timely curb the overflow of the slurry, directly plugging the slurry in the slurry outlet and the grouting tube.

Description

Technical Field

[0001] The utility model relates to the technical field of building components, in particular to a composite shear wall with PCF boards stacked together. Background Art

[0002] The composite shear wall with PCF panels refers to a composite shear wall structure constructed by superimposing prestressed concrete (PCF) panels. It is a wall structure with high bearing capacity and stiffness.

[0003] In conjunction with publication number CN217128596U, publication date 2022-08-05, a prefabricated external shear wall is disclosed, including an external shear wall body and an external protective layer. In the width direction, the outer protective layer is larger than the external shear wall body. From the external shear wall body to the external protective layer, the vertical center axis of the external shear wall is offset to the left relative to the vertical center axis of the external protective layer; the left part of the outer protective layer is connected to the left side of the external shear wall through a plurality of ribbed steel bars arranged at intervals from top to bottom; an insulation layer is embedded on one side of the outer protective layer close to the external shear wall.

[0004] In the prior art including the above-mentioned patent, after the prefabricated shear wall is hoisted to the installation position, it is necessary to align the embedded steel bars below with the steel bars in the shear wall and perform grouting. Usually, a hole is directly opened in the grouting tube and pressurized grouting is directly performed through the grouting cavity. The grouting tube is judged to be full by the grouting outflow from other grouting ports, and then a rubber plug is inserted to block the grouting port. However, if the grouting outflow is not blocked in time, the overflowing slurry will hang on the shear wall, resulting in uneven slurry points on the surface of the shear wall, making the surface of the shear wall uneven and affecting subsequent decoration. Utility Model Content

[0005] The utility model aims to provide a composite shear wall composed of laminated PCF boards, so as to solve the above problems.

[0006] In order to achieve the above-mentioned object, the utility model provides the following technical solutions: a composite shear wall of laminated PCF boards, comprising a shear wall with preset steel bars, on which a plurality of grouting tubes for grouting are provided;

[0007] It is used to connect multiple grouting tubes, and the ends thereof extend out of the grouting openings of the shear walls;

[0008] The sealing component arranged at the end of the slurry outlet includes elastic paddles arranged in a circular array. The elastic paddles are pushed by the grouting gun to open the slurry outlet. In the default state, multiple elastic paddles are recessed into the slurry outlet and enclose a spherical surface to seal the slurry outlet.

[0009] Preferably, the blocking assembly further comprises a plurality of inner paddles arranged on a side of the elastic paddle located inside the pulp opening and a folding portion for connecting the inner paddles and the elastic paddles.

[0010] Preferably, the inner paddle is provided with a sparse needle for pressing against the inner wall of the grouting gun.

[0011] Preferably, the folding portion is bent under pressure to make the distance between the inner paddle and the elastic paddle as short as possible, and the sparse needle moves with the inner paddle at the port of the grouting gun.

[0012] Preferably, the folding portion is provided with a clamp pointing to the axis of the pulp outlet.

[0013] Preferably, the tip of the elastic paddle is an arc-shaped notch, and in a default state, the inner diameter of the opening enclosed by the arc-shaped notch is smaller than that of the inner paddle.

[0014] In the above technical scheme, a composite shear wall with PCF boards stacked together provided by the utility model has the following beneficial effects: through the structural design of the elastic paddle, it can prevent foreign matter from entering the grouting barrel during transportation, avoiding blockage of the grouting barrel; during the grouting process, the elastic paddle clamps the grouting gun to prevent it from falling off; at the same time, the elastic paddles in the remaining slurry outlets still play a blocking role, and the operator does not need to use a rubber plug to block the slurry outlet when the slurry gushes out, thereby reducing operations; at the same time, the slurry overflow can be curbed in time, and the slurry can be directly sealed in the slurry outlet and the grouting barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0016] Figure 1 A three-dimensional schematic diagram of a shear wall provided in an embodiment of the utility model;

[0017] Figure 2 A schematic cross-sectional view of a grouting tube and a grouting opening provided in an embodiment of the utility model;

[0018] Figure 3 A schematic diagram of a plugging assembly provided in an embodiment of the utility model;

[0019] Figure 4 A schematic diagram of the elastic paddle, inner paddle and clamp structure provided by an embodiment of the utility model;

[0020] Figure 5 A schematic diagram of the positions of the elastic paddle and the inner paddle in the default state provided by an embodiment of the utility model;

[0021] Figure 6A schematic diagram of the position of the inner paddle of the elastic paddle provided by the embodiment of the utility model when the grouting gun is inserted into the lower inner paddle;

[0022] Figure 7 A schematic diagram of the positions of the inner paddle and the elastic paddle when the slurry is overflowing provided by an embodiment of the utility model.

[0023] Description of reference numerals:

[0024] 1. Shear wall; 2. Grouting tube; 3. Grout opening; 4. Sealing assembly; 41. Elastic pick; 42. Folding part; 43. Inner pick; 44. Sparse needle; 45. Clamp. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] like Figure 1-7 As shown, a composite shear wall composed of PCF boards comprises a shear wall 1 with steel bars preset therein, on which a plurality of grouting tubes 2 for grouting are provided;

[0027] It is used to connect multiple grouting tubes 2, and the ends thereof extend out of the grouting opening 3 of the shear wall 1;

[0028] The sealing assembly 4 arranged at the end of the slurry opening 3 includes elastic paddles 41 arranged in a circular array. The elastic paddles 41 are pushed by the grouting gun to open the slurry opening 3. In the default state, multiple elastic paddles 41 are recessed into the interior of the slurry opening 3 and enclose a spherical surface to seal the slurry opening 3.

[0029] Specifically, the shear wall 1 is hoisted to the specified position so that the steel bars at the bottom are located in the grouting tube 2, the bottom of the shear wall 1 is divided into compartments, and the four sides of the bottom are preliminarily caulked, and then grouting is prepared, and a grouting gun is inserted along the slurry opening 3. A plurality of elastic paddles 41 are provided at the end of the slurry opening 3. In the default state, the plurality of elastic paddles 41 are recessed into the slurry opening 3, enclosing a spherical surface and clinging to each other, so as to block the slurry opening 3 and prevent sand and gravel from entering. The grouting gun is inserted into the spherical surface so that the tip of the elastic paddle 41 is pushed and moved by the port of the grouting gun, and the elastic paddle 41 clamps the outer wall of the port of the grouting gun to prevent When the grouting port 3 falls off during the grouting process, the slurry port 3 is no longer blocked and is pressurized for grouting. After the slurry enters the slurry port 3, it fills the grouting tube 2, and the excess slurry flows outward along the remaining slurry ports 3 that have not been inserted by the grouting gun. Since the elastic paddles 41 in the remaining slurry ports 3 are not pushed by the port of the grouting gun, they still maintain the default concave state. The spherical structure formed by the elastic paddles 41 makes the pressure of the slurry on the elastic paddles 41 more uniform. Even if the slurry pressure is large, the forces acting on the multiple elastic paddles 41 will gather together toward the axial direction of the slurry port 3, so that the elastic paddles 41 are more closely attached to each other, thereby achieving a better sealing effect.

[0030] In the above technology, the structural design of the elastic paddle 41 can prevent foreign matter from entering the grouting tube 2 during transportation, thereby avoiding blockage of the grouting tube 2. During the grouting process, the elastic paddle 41 clamps the grouting gun to prevent it from falling off. At the same time, the elastic paddle 41 in the remaining slurry openings 3 still plays a sealing role. The operator does not need to use a rubber plug to block the slurry outlet when the slurry gushes out, thereby reducing operations. At the same time, the slurry overflow can be curbed in time, and the slurry can be directly sealed in the slurry opening 3 and the grouting tube 2.

[0031] As an embodiment further provided by the present invention, the blocking assembly 4 also includes a plurality of inner paddles 43 arranged on one side of the elastic paddle 41 located inside the pulp opening 3 and a folding portion 42 for connecting the inner paddles 43 and the elastic paddle 41 .

[0032] Specifically, after the grouting gun is inserted into the slurry port 3, the elastic paddle 41 is first pushed to move and open, and then the port of the grouting gun continues to be inserted into the slurry port 3, and the port pushes the inner paddle 43 to deflect. If the grouting gun port is not deep enough, the deflection degree of the inner paddle 43 will be insufficient, and a part of the inner paddle 43 will be blocked at the grouting gun port, so that a part of the slurry will flow out into the chamber surrounded by the inner paddle 43, the folded part 42 and the elastic paddle 41, so that the operator can It can be observed and the grouting gun is continuously inserted inwardly, so that the grouting depth of the grouting gun is deeper, so as to prevent the slurry from accumulating in the slurry opening 3 and failing to completely fill the grouting tube 2. After the remaining slurry openings 3 that have not been inserted with the grouting gun are filled, the slurry pushes the inner paddle 43 toward the elastic paddle 41, so that the folded portion 42 is bent, and the inner paddle 43 contacts the inner side of the elastic paddle 41 and continues to push the elastic paddle 41, so that the elastic paddle 41 changes from being concave inwardly toward the slurry opening 3 to being convex outwardly, as shown in FIG. Figure 7 In the state shown, the operator can stop pressurizing the grouting by observing the outwardly protruding elastic paddle 41 until the grouting tube 2 and the grout opening 3 are filled.

[0033] As another embodiment further provided by the present invention, a sparse needle 44 for pressing against the inner wall of the grouting gun is provided on the inner paddle 43 .

[0034] Specifically, the port pushes the inner paddle 43 to deflect, and the sparse needle 44 is deflected with the inner paddle 43 to abut against the inner wall of the grouting gun. Since the inner wall of the grouting gun is provided with a protrusion, the end of the sparse needle 44 is triangular and fits with the protrusion, so that the sparse needle 44 and the port of the grouting gun are locked with each other. Figure 6 In the state shown, the grouting gun will not fall off easily, and the sparse needle 44 can cut the slurry that is agglomerated or adhered in the grouting gun, reducing blockage and making the grouting process stable.

[0035] As another embodiment further provided by the present invention, the folding portion 42 is bent under pressure to make the distance between the inner paddle 43 and the elastic paddle 41 as short as possible, and the sparse needle 44 moves with the inner paddle 43 at the port of the grouting gun.

[0036] Specifically, after the grouting tube 2 and the grouting port 3 are filled with slurry, continuing grouting will cause the slurry to overflow. Since the sealing components 4 in the other slurry ports 3 are kept in a sealed state, excess slurry will flow outward along the slurry port 3 where the grouting gun is inserted, causing the inner paddle 43 to be subjected to the slurry pressure and approach the elastic paddle 41, the folding portion 42 bends, and the sparse needle 44 moves toward the elastic paddle 41 along with the inner paddle 43, thereby no longer contacting the inner wall of the grouting gun port, so that the grouting gun can be pulled out and the grouting operation is stopped.

[0037] As another embodiment further provided by the present invention, a clamping member 45 pointing to the axis of the pulp outlet 3 is provided on the folding portion 42 .

[0038] Specifically, when the grouting gun is inserted into the slurry port 3, the outer wall and the clamping piece 45 are not in contact. As the grouting gun port pushes the inner paddle 43, the inner paddle 43 drives the folding portion 42 to deflect, so that the clamping piece 45 moves to a position against the outer wall of the grouting gun to prevent the grouting gun from falling off. After the slurry in the grouting tube 2 and the slurry port 3 is filled, the slurry pushes the inner paddle 43 to approach the elastic paddle 41, and the folding portion 42 bends and causes the clamping piece 45 to continue to press against the outer wall of the grouting gun. With the support of the clamping piece 45, the inner paddle 43 will not be closed immediately, and the grouting gun can continue to grout inwardly, and the folding portion 42 is completely bent by the slurry pressure, and the inner paddle 43 is against the elastic paddle 41. Then the grouting gun is pulled outward and drives the clamping piece 45 outward, so that the elastic paddle 41 is driven by the clamping piece 45 and changes from a concave shape toward the slurry port 3 to a convex shape. Figure 7 The state shown ensures that the grouting tube 2 and the grout opening 3 are completely filled.

[0039] As another embodiment further provided by the present invention, the tip of the elastic pick 41 is an arc-shaped notch. In a default state, the inner diameter of the opening enclosed by the arc-shaped notch is smaller than that of the inner pick 43 .

[0040] Specifically, the multiple elastic paddles 41 form a spherical surface with a circular notch at the axis center in the default state. When the grouting gun is inserted, the grouting gun port is in a pointed cone shape and is guided by the elastic paddles 41 to automatically deviate toward the circular notch, thereby playing a centering role and preventing the grouting gun from slipping due to tilting during insertion.

[0041] Working principle: the shear wall 1 is hoisted to the specified position so that the steel bars below are located in the grouting tube 2, the bottom of the shear wall 1 is divided into compartments, and the four sides of the bottom are preliminarily filled, and then grouting is prepared, and the grouting gun is inserted along the slurry port 3. In the default state, multiple elastic paddles 41 enclose a spherical surface with a circular notch at the axis center. When the grouting gun is inserted, since the grouting gun port is in a pointed cone shape, it will be guided by the elastic paddle 41 and automatically deviate to the circular notch, which plays a centering role. After the grouting gun is inserted into the slurry port 3, it first pushes the elastic paddle 41 to move and open, and then the grouting gun port continues to be inserted into the slurry port 3. The port squeezes the inner paddle 43 to deflect, and the sparse needle 44 is deflected with the inner paddle 43 and abuts against the inner wall of the grouting gun. Since the inner wall of the grouting gun is provided with a protrusion, and the end of the sparse needle 44 is triangular and fits with the protrusion, the sparse needle 44 and the grouting gun port are locked with each other. Figure 6 The state shown in the figure prevents the grouting gun from falling off easily, and the sparse needle 44 can cut the slurry that is in a block or stuck in the grouting gun to reduce blockage. After the grouting tube 2 and the slurry port 3 are filled with slurry, continuing to grout will cause the slurry to overflow. The remaining slurry in the slurry port 3 that is not inserted into the grouting gun pushes the inner paddle 43 to approach the elastic paddle 41, so that the folding part 42 is bent, and the inner paddle 43 contacts the inner side of the elastic paddle 41 and continues to push the elastic paddle 41, so that the elastic paddle 41 changes from being concave inward toward the slurry port 3 to being convex outward, as shown in FIG. Figure 7 In the state shown, the operator can observe the convex elastic paddle 41 until the grouting tube 2 and the slurry port 3 are filled, the slurry pushes the inner paddle 43 to approach the elastic paddle 41, the folded portion 42 is bent and the clamp 45 continues to press the outer wall of the grouting gun. With the support of the clamp 45, the inner paddle 43 will not be closed immediately, and the grouting gun can continue to grout inwards, and the folded portion 42 is completely bent by the slurry pressure, the inner paddle 43 is against the elastic paddle 41, and then the grouting gun is pulled outward and drives the clamp 45 outward, so that the elastic paddle 41 is driven by the clamp 45, and changes from a concave shape toward the slurry port 3 to a convex shape, thereby ensuring that the grouting tube 2 and the slurry port 3 are completely filled.

[0042] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A composite shear wall composed of PCF boards, characterized in that: include: A shear wall (1) is provided with steel bars, on which a plurality of grouting tubes (2) for grouting are provided; Used to connect multiple grouting tubes (2), with the ends extending out of the grouting opening (3) of the shear wall (1); The sealing component (4) is arranged at the end of the slurry opening (3), and comprises elastic paddles (41) arranged in a circular array. The elastic paddles (41) are pushed by the grouting gun to open the slurry opening (3). In a default state, a plurality of the elastic paddles (41) are recessed into the interior of the slurry opening (3) and enclose a spherical surface to seal the slurry opening (3).

2. A composite shear wall composed of PCF boards according to claim 1, characterized in that: The blocking assembly (4) further comprises a plurality of inner paddles (43) arranged on one side of the elastic paddle (41) located inside the pulp opening (3) and a folding portion (42) used for connecting the inner paddles (43) and the elastic paddle (41).

3. A composite shear wall composed of PCF boards according to claim 2, characterized in that: The inner paddle (43) is provided with a sparse needle (44) for pressing against the inner wall of the grouting gun.

4. A composite shear wall composed of laminated PCF boards according to claim 3, characterized in that: The folding portion (42) is bent under pressure to minimize the distance between the inner paddle (43) and the elastic paddle (41), and the sparse needle (44) moves along with the inner paddle (43) at the port of the grouting gun.

5. The composite shear wall of PCF board stacking according to claim 2, characterized in that: The folding portion (42) is provided with a clamping piece (45) pointing toward the axis of the pulp outlet (3).

6. A composite shear wall composed of PCF boards according to claim 4, characterized in that: The tip of the elastic paddle (41) is an arc-shaped notch. In a default state, the inner diameter of the opening enclosed by the arc-shaped notch is smaller than that of the inner paddle (43).

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