Partitioned grouting system for prefabricated parts

Abstract

The utility model provides a prefabricated part separated-bin grouting system, which belongs to the technical field of prefabricated part construction, and comprises a support reversed beam, a separated-bin reversed beam, a grouting sleeve and a plugging strip, the supporting reversed beam and the bin dividing reversed beam are both arranged on the installation face of a cast-in-place component and used for supporting the prefabricated component. The grouting sleeve is pre-buried in the prefabricated part, the plugging strip is located on the installation face of the cast-in-place part and abuts against one side of the downstream face of the prefabricated part, and a fastening structure for pressing the plugging strip on the downstream face of the prefabricated part is arranged between the plugging strip and the prefabricated part. The utility model has the advantages that the warehouse-dividing grouting of the prefabricated part is realized, and the construction efficiency of the prefabricated part is improved.

Description

Technical Field

[0001] This utility model relates to the field of precast component construction technology, and in particular to a precast component compartment grouting system. Background Technology

[0002] Prefabricated residential buildings are a type of construction that utilizes prefabricated components manufactured in a factory and assembled on-site. In this structure, the vertical connections are crucial. The typical method involves embedding grouting sleeves within the prefabricated components, with the vertical reinforcing bars of the prefabricated components extending into the sleeves. The inlet and outlet pipes of the grouting sleeves extend to the surface of the prefabricated components. During construction, the grouting sleeves are aligned and inserted into the corresponding vertical reinforcing bars of the cast-in-place components. The gaps between the prefabricated and cast-in-place components are then sealed with mortar. If segmented grouting is required, segmented sealing is also necessary, with grouting space reserved between the prefabricated and cast-in-place components. However, this existing construction method requires waiting for the cement mortar to cure, which increases construction time and reduces overall construction efficiency.

[0003] Chinese utility model patent publication number CN211572574U discloses a prefabricated exterior wall sleeve grouting and sealing system, which uses sealing strips instead of mortar to seal the gaps, but this method cannot achieve compartmentalized grouting. Utility Model Content

[0004] The purpose of this invention is to provide a precast component compartment grouting system that can realize compartment grouting of precast components and improve the construction efficiency of precast components.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A precast component compartmentalized grouting system is characterized by the following structural features: it includes a supporting anti-reverse beam, a compartmentalized anti-reverse beam, a grouting sleeve, and a sealing strip; both the supporting anti-reverse beam and the compartmentalized anti-reverse beam are set on the installation surface of the cast-in-place component, and the supporting anti-reverse beam and the compartmentalized anti-reverse beam are used to support the precast component; the grouting sleeve is embedded in the precast component; the sealing strip is located on the installation surface of the cast-in-place component and abuts against the backwater side of the precast component; a fastening structure is provided between the sealing strip and the precast component to press the sealing strip tightly against the backwater side of the precast component.

[0007] During construction, the precast component compartmentalized grouting system described above involves hoisting the precast component and placing it on the supporting anti-reverse beam and compartmentalized anti-reverse beam. Then, the sealing strip is abutted against the backwater side of the precast component, and the fastening structure is adjusted and tightened. This achieves compartmentalized closure between the installation surfaces of the precast component and the cast-in-place component, eliminating the need for mortar grouting, saving the time of waiting for the mortar to cure, and improving construction efficiency.

[0008] Furthermore, the fastening structure includes a connector and a clamping member; the grout inlet pipe and grout outlet pipe of the grouting sleeve are connected to the connector, the connector is connected to the clamping member, and the clamping member is used to adjust the sealing strip to clamp the precast component.

[0009] Therefore, by matching the grout inlet and outlet pipes of the grouting sleeve with the connecting parts, the clamping parts can be connected to the precast components without the need to drill additional perforations, thus reducing the risk of leakage later.

[0010] Furthermore, both the top of the supporting anti-reverse beam and the compartment anti-reverse beam are provided with mounting grooves, and the bottom of the prefabricated component is provided with a waterproof strip that matches the mounting groove.

[0011] Therefore, under the weight of the precast component, the waterproof strip is pressed into the installation groove. The waterproof strip, with its elastic deformation, can fill the groove completely. During grouting, the waterproof strip blocks the grout, preventing it from overflowing from the gaps between the precast component and the supporting beams and compartment beams, ensuring the grouting process proceeds normally. The grout also fills the spaces between the waterproof strip, supporting beams, compartment beams, and the bottom surface of the precast component, eliminating minor unevenness between the precast component and the supporting beams and compartment beams. Furthermore, water is blocked by the waterproof strip and the mortar used to seal the gaps, improving the waterproofing effect.

[0012] Furthermore, the connector includes a connecting plate, a grout inlet connecting pipe, and a grout outlet connecting pipe. Both the grout outlet connecting pipe and the grout inlet connecting pipe pass through the connecting plate. The grout inlet connecting pipe is threadedly connected to and communicates with the grout inlet pipe of the grouting sleeve. The grout outlet connecting pipe is threadedly connected to and communicates with the grout outlet pipe of the grouting sleeve. A fixing nut is provided at the end of both the grout inlet connecting pipe and the grout outlet connecting pipe away from the precast component. The fixing nut abuts against the connecting plate, and the connecting plate abuts against the sealing strip.

[0013] Therefore, the connecting plate is pressed against the back surface of the precast component, and the grout outlet pipe and grout inlet pipe pass through the connecting plate. The grout outlet pipe is threaded to the grout outlet pipe of the grouting sleeve, and the grout inlet pipe is threaded to the grout inlet pipe of the grouting sleeve. This tightens the fixing nut against the connecting plate, causing the connecting plate to press against the sealing strip, which in turn tightens the sealing strip against the back surface of the precast component. Furthermore, after the grout is filled, it will flow out from the grout outlet pipe, and the overflowing grout will stick to the connecting plate, avoiding the situation where overflowing grout sticks to the precast component and is difficult to clean later, thus preventing the grout from contaminating the fair-faced concrete surface of the precast component.

[0014] Furthermore, the clamping member includes a first clamping bolt, which passes through the connecting plate and abuts against the side of the sealing strip opposite to the precast component.

[0015] Furthermore, the connecting plate is a Z-shaped plate, the sealing strip is supported by the connecting plate, and the stepped surface of the connecting plate is threaded with a second tightening bolt, which is tightly abutted against the top of the sealing strip.

[0016] Furthermore, the grouting sleeve includes a first sleeve and a second sleeve. The first sleeve is inserted into the reinforcing bar of the precast component away from the sealing strip, and the second sleeve is inserted into the reinforcing bar of the precast component close to the sealing strip. The first sleeve is connected to a first grout outlet pipe, and the second sleeve is connected to a second grout outlet pipe and a grouting pipe. The first grout outlet pipe, the second grout outlet pipe, and the grouting pipe all extend from the backwater surface of the precast component.

[0017] Therefore, after the grout enters the first sleeve through the grouting pipe, it first fills the compartment space between the precast and cast-in-place components. Then, the grout fills both the first and second sleeves and overflows from the first and second grout outlet pipes. This design allows grouting to be performed on the back side of the precast component, facilitating construction and eliminating the need for workers to perform grouting operations on scaffolding, thus improving construction safety and efficiency. Simultaneously, it ensures that there are no pre-drilled holes on the front side of the precast component, enhancing its waterproofing performance.

[0018] Furthermore, the first grout outlet pipe, the second grout outlet pipe, and the grout injection pipe are all plugged with caps.

[0019] Furthermore, an elastic pad is connected to the bottom of the sealing strip along its length. This elastic pad fills the gap between the mounting surface of the cast-in-place component and the sealing strip, preventing grout from overflowing from the gap.

[0020] Furthermore, the prefabricated component has no pre-drilled holes on its water-facing surface.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] (i) During construction, the precast components are hoisted and placed on the supporting inverted beam and the compartmentalized inverted beam. Then, the sealing strip is abutted against the back side of the precast component. After the connector is installed, the clamping part is installed so that the sealing strip is pressed against the precast component. This achieves the compartmentalized closure between the installation surfaces of the precast component and the cast-in-place component. There is no need to use mortar to fill the gaps, saving the time of waiting for the mortar to cure and improving construction efficiency.

[0023] (ii) This utility model allows the inlet and outlet pipes of the grouting sleeve and the connecting parts to connect the clamping parts to the precast components without the need for additional perforations, thus reducing the risk of leakage in the later stages.

[0024] (iii) Under the weight of the precast component, the waterproof strip is pressed into the installation groove. The waterproof strip has elastic deformation ability and can fill the installation groove. When the precast component is grouted, the waterproof strip blocks the grout, preventing the grout from overflowing from the gap between the precast component and the supporting anti-reverse beam and the compartment anti-reverse beam, ensuring that the grouting process can proceed normally.

[0025] (iv) The grouting material of this utility model can also fill the space between the waterproof strip, the supporting inverted beam, the compartmentalized inverted beam and the bottom surface of the precast component, eliminate the slight unevenness between the precast component and the supporting inverted beam and the compartmentalized inverted beam, and the water will be blocked by the waterproof strip and the mortar that fills the gaps, thus improving the waterproofing effect.

[0026] (v) After the grouting material is filled, it will flow out from the grouting connection pipe. The overflowing grouting material will stick to the connection plate, which avoids the situation where the overflowing grouting material sticks to the precast component and is difficult to clean later, and avoids the grouting material from contaminating the fair-faced concrete surface of the precast component.

[0027] (vi) Grouting can be carried out on the back side of the precast components, which is convenient for construction. Workers do not need to perform grouting operations on scaffolding, which improves construction safety and efficiency. At the same time, it ensures that there are no pre-reserved holes on the water-facing side of the precast components, further improving the waterproof performance. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model;

[0029] Figure 2 This is a schematic diagram illustrating the structure of the cap and waterproof strip in one embodiment of the present invention;

[0030] Figure 3 This is a structural schematic diagram illustrating the mounting groove and the compartmentalized anti-reverse beam in one embodiment of the present invention;

[0031] Figure 4 This is a structural schematic diagram illustrating the connecting member and the clamping member in one embodiment of the present invention;

[0032] Figure 5 This is a schematic diagram of the structure of the first slurry outlet pipe in one embodiment of the present invention;

[0033] Figure 6 yes Figure 4 An enlarged schematic diagram of part A in the middle.

[0034] Explanation of reference numerals in the attached drawings: 1. Supporting anti-reverse beam; 11. Mounting groove; 2. Compartment anti-reverse beam; 3. Grouting sleeve; 31. First sleeve; 32. Second sleeve; 33. First grout outlet pipe; 34. Second grout outlet pipe; 35. Grouting pipe; 4. Sealing strip; 41. Elastic cotton pad; 5. Waterproof strip; 6. Connector; 61. Connecting plate; 62. Grout inlet connecting pipe; 63. Grout outlet connecting pipe; 64. Fixing nut; 7. Clamping component; 71. First clamping bolt; 72. Second clamping bolt; 8. Cover. Detailed Implementation

[0035] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present invention can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" appearing below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.

[0036] like Figures 1-6 As shown, a precast component compartmentalized grouting system according to this embodiment includes a supporting anti-reverse beam 1, a compartmentalized anti-reverse beam 2, a grouting sleeve 3, and a sealing strip 4. Both the supporting anti-reverse beam 1 and the compartmentalized anti-reverse beam 2 are disposed on the mounting surface of the cast-in-place component, and are used to support the precast component. The grouting sleeve 3 is embedded within the precast component. The sealing strip 4 is located on the mounting surface of the cast-in-place component and abuts against the backwater side of the precast component. A fastening structure is provided between the sealing strip 4 and the precast component to press the sealing strip 4 tightly against the backwater side of the precast component. The fastening structure includes a connector 6 and a clamping member 7. Figures 1-6 As shown, the precast component in this embodiment takes a precast bay window as an example. The precast component compartment grouting system includes a supporting anti-reverse beam 1, a compartment anti-reverse beam 2, a grouting sleeve 3, and a sealing strip 4.

[0037] The supporting inverted beam 1 is a U-shaped beam. The supporting inverted beam 1 is cast together with the cast-in-place components (floor slab and bottom plate). The top surface of the supporting inverted beam 1 is provided with an installation groove 11 along its outline.

[0038] In this embodiment, there is one compartmentalized inverted beam 2. In other embodiments, the number of compartmentalized inverted beams 2 can be determined according to the specific compartmentalized grouting scheme of the precast component. The compartmentalized inverted beam 2 is cast together with the supporting inverted beam 1 and the cast-in-place component. The compartmentalized inverted beam 2 is connected to the middle of the crossbeam section of the supporting inverted beam 1.

[0039] A waterproof strip 5 is installed on the bottom surface of the precast component. The waterproof strip 5 protrudes from the bottom surface of the precast component and corresponds to and fits the mounting groove 11. The precast component is supported on the compartment inverted beam 2 and the support inverted beam 1. The support inverted beam 1 supports the water-facing side of the bottom of the precast component and both ends of the bottom of the precast component.

[0040] like Figure 4 , Figure 5 and Figure 6 The grouting sleeve 3 is embedded in the precast component. In this embodiment, the precast component is made of double-layer steel bars and fair-faced concrete. The grouting sleeve 3 includes a first sleeve 31 and a second sleeve 32. The first sleeve 31 is inserted into the vertical steel bar on the water-facing side of the precast component, and the second sleeve 32 is inserted into the vertical steel bar on the water-repellent side of the precast component.

[0041] The first sleeve 31 is connected to the first grout outlet pipe 33, and the second sleeve 32 is connected to the second grout outlet pipe 34 and the grout injection pipe 35. The first grout outlet pipe 33, the second grout outlet pipe 34 and the grout injection pipe 35 all extend from the backwater side of the precast component. The first grout outlet pipe 33 is an L-shaped pipe, and the grout injection pipe 35 is located below the first grout outlet pipe 33 and the second grout outlet pipe 34.

[0042] An elastic cotton pad 41 is attached to the bottom of the sealing strip 4 along its length. The elastic cotton pad 41 is located on the installation surface of the cast-in-place component and abuts against the back side of the precast component. The first grout outlet pipe 33, the second grout outlet pipe 34, and the grouting pipe 35 are connected by a connector 6. The connector 6 includes a connecting plate 61, several grout inlet connectors 62, and several grout outlet connectors 63. The grout outlet connectors 63 and the grout inlet connectors 62 all pass through the connecting plate 61. The grout inlet connectors 62 are threadedly connected to and communicate with the grouting pipe 35. The grout outlet connectors 63 correspond one-to-one with the first grout outlet pipe 33 and the second grout outlet pipe 34 and are threadedly connected to and communicate with each other. The ends of the grout inlet connectors 62 and the grout outlet connectors 63 away from the precast component are fixed with fixing nuts 64. The fixing nuts 64 are tightly abutted against the side of the connecting plate 61 away from the precast component. The connecting plate 61 is tightly abutted against the sealing strip 4.

[0043] The connecting plate 61 is a Z-shaped plate. The stepped surface of the connecting plate 61 supports the top surface of the sealing strip 4. The plate surface of the connecting plate 61 away from the precast component abuts against the sealing strip 4. A clamping member 7 for adjusting the sealing strip 4 to press against the precast component is installed on the connecting plate 61.

[0044] The clamping member 7 includes a first clamping bolt 71 and a second clamping bolt 72. Both the first clamping bolt 71 and the second clamping bolt 72 pass through the connecting plate 61 and are threadedly connected to the connecting plate 61. The first clamping bolt 71 is tightly abutted against the side of the sealing strip 4 away from the precast component, and the second clamping bolt 72 is tightly abutted against the top surface of the sealing strip 4.

[0045] The implementation principle of this embodiment is as follows: During construction, the precast component is hoisted and placed on the supporting anti-water beam 1 and the compartmentalized anti-water beam 2. Then, the sealing strip 4 is abutted against the backwater side of the precast component, and the connecting plate 61 is fitted against the sealing strip 4 and the backwater side of the precast component. Then, the grout inlet connecting pipe 62 and the grout outlet connecting pipe 63 are installed, and the fixing nut 64 is tightened against the connecting plate 61. Then, the first tightening bolt 71 and the second tightening bolt 72 are tightened to make the sealing strip 4 press against the precast component, and grouting can then be carried out. This achieves compartmentalized sealing between the installation surfaces of the precast component and the cast-in-place component, and eliminates the need for mortar grouting, saving the time of waiting for the mortar to cure and improving construction efficiency.

[0046] Moreover, by fitting the grout inlet pipe, grout outlet pipe and connector 6 of the grouting sleeve 3 together, the clamping member 7 can be connected to the precast component without the need to open additional perforations, thus reducing the risk of leakage in the later stage.

[0047] Meanwhile, under the weight of the precast component, the waterproof strip 5 is pressed into the installation groove 11. The waterproof strip 5 has elastic deformation, which can fill the installation groove 11. When the precast component is grouted, the waterproof strip 5 blocks the grout, preventing the grout from overflowing from the gap between the precast component and the supporting anti-reverse beam 1 and the compartment anti-reverse beam 2, ensuring that the grouting process can proceed normally.

[0048] Furthermore, the grouting material can fill the space between the waterproof strip 5, the supporting anti-reverse beam 1, the compartment anti-reverse beam 2 and the bottom surface of the precast component, eliminating the slight unevenness between the precast component and the supporting anti-reverse beam 1 and the compartment anti-reverse beam 2. Water will be blocked by the waterproof strip 5 and the mortar filling the gaps, thus improving the waterproofing effect.

[0049] After grouting is completed and the grout outlet pipe 63, grout inlet pipe 62 and connecting plate 61 are removed, the first grout outlet pipe 33, the second grout outlet pipe 34 and the grouting pipe 35 are all plugged with caps 8 to keep the wall surface flat.

[0050] The above embodiments should be understood as being used only to illustrate the present invention more clearly, and not to limit the scope of the present invention. After reading the present invention, any modifications of the embodiments by those skilled in the art in various equivalent forms fall within the scope defined by the appended claims.

Claims

1. A precast component compartmentalized grouting system, characterized in that, The precast component includes a supporting anti-reverse beam (1), a compartmentalized anti-reverse beam (2), a grouting sleeve (3), and a sealing strip (4). The supporting anti-reverse beam (1) and the compartmentalized anti-reverse beam (2) are both installed on the installation surface of the cast-in-place component. The supporting anti-reverse beam (1) and the compartmentalized anti-reverse beam (2) are used to support the precast component. The grouting sleeve (3) is embedded in the precast component. The sealing strip (4) is located on the installation surface of the cast-in-place component and abuts against the back water side of the precast component. A fastening structure is provided between the sealing strip (4) and the precast component to press the sealing strip (4) against the back water side of the precast component. The fastening structure includes a connector (6) and a clamping member (7); the grout inlet pipe and the grout outlet pipe of the grouting sleeve (3) are connected to the connector (6), the connector (6) is connected to the clamping member (7), and the clamping member (7) is used to adjust the sealing strip (4) to clamp the precast component.

2. The precast component compartmentalized grouting system according to claim 1, characterized in that, The top of both the supporting anti-reverse beam (1) and the compartment anti-reverse beam (2) is provided with an installation groove (11), and the bottom of the prefabricated component is provided with a waterproof strip (5) that matches the installation groove (11).

3. The precast component compartmentalized grouting system according to claim 1, characterized in that, The connector (6) includes a connecting plate (61), a grout inlet connecting pipe (62), and a grout outlet connecting pipe (63). Both the grout outlet connecting pipe (63) and the grout inlet connecting pipe (62) pass through the connecting plate (61). The grout inlet connecting pipe (62) is threadedly connected to and communicates with the grout inlet pipe of the grouting sleeve (3). The grout outlet connecting pipe (63) is threadedly connected to and communicates with the grout outlet pipe of the grouting sleeve (3). A fixing nut (64) is provided at the end of the grout inlet connecting pipe (62) and the grout outlet connecting pipe (63) away from the precast component. The fixing nut (64) abuts against the connecting plate (61). The connecting plate (61) abuts against the sealing strip (4).

4. The precast component compartmentalized grouting system according to claim 3, characterized in that, The clamping member (7) includes a first clamping bolt (71) that passes through the connecting plate (61) and abuts against the side of the sealing strip (4) away from the precast component.

5. A precast component compartmentalized grouting system according to claim 4, characterized in that, The connecting plate (61) is a Z-shaped plate, and the sealing strip (4) is supported by the connecting plate (61). The stepped surface of the connecting plate (61) is threaded with a second tightening bolt (72), and the second tightening bolt (72) is tightly abutted against the top of the sealing strip (4).

6. The precast component compartmentalized grouting system according to claim 1, characterized in that, The grouting sleeve (3) includes a first sleeve (31) and a second sleeve (32). The first sleeve (31) is inserted into the reinforcing bar of the precast component away from the sealing strip (4). The second sleeve (32) is inserted into the reinforcing bar of the precast component close to the sealing strip (4). The first sleeve (31) is connected to a first grout outlet pipe (33). The second sleeve (32) is connected to a second grout outlet pipe (34) and a grouting pipe (35). The first grout outlet pipe (33), the second grout outlet pipe (34) and the grouting pipe (35) all extend from the backwater surface of the precast component.

7. A precast component compartmentalized grouting system according to claim 6, characterized in that, The first grout outlet pipe (33), the second grout outlet pipe (34) and the grout injection pipe (35) are all plugged with caps (8).

8. A precast component compartmentalized grouting system according to any one of claims 1-7, characterized in that, The bottom of the sealing strip (4) is connected to an elastic pad (41) along its length.

9. A precast component compartmentalized grouting system according to any one of claims 1-7, characterized in that, The prefabricated component has no pre-reserved holes on its water-facing surface.

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