Prefabricated wall grouting-free connecting device and connecting method thereof

Abstract

The invention discloses a grouting-free connecting device and method for a prefabricated wall, and the connecting device comprises a sleeve which is vertically pre-buried at the bottom of the prefabricated wall, and the bottom end of the sleeve penetrates through the prefabricated wall and forms an insertion space for a reserved steel bar to be inserted; the flexible partition plate is arranged in the middle of the inserting space so as to divide the inserting space into an upper cabin and a lower cabin, the diameter of the upper cabin is larger than that of the lower cabin, and the flexible partition plate is clamped to the top end of the lower cabin and is in interference fit with the lower cabin; the flexible sealing plate is connected to the bottom end of the lower cabin in a clamped mode and is in interference fit with the lower cabin, mortar raw materials are pre-stored in the upper cabin, water is pre-stored in the lower cabin, and when the prefabricated wall is hoisted, the flexible sealing plate and the flexible partition plate are pushed into the upper cabin through the reserved steel bars, so that the prefabricated wall is hoisted. The mortar raw materials and water are mixed to form the sealing mortar, and the construction efficiency is improved by arranging the connecting device.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and in particular to a prefabricated wall grouting-free connection device and a connection method thereof. Background Art

[0002] With the development of cities, prefabricated components are being used more and more frequently in modern buildings due to their green and pollution-free advantages. However, compared with traditional cast-in-place components, prefabricated components still lack connection stability, especially the connection of prefabricated walls. It is necessary to reserve sockets at the bottom of the prefabricated wall in advance, and reserve dowels at the designed installation position of the prefabricated wall on the floor slab. During construction, the prefabricated wall is hoisted to the designed installation position, and the dowels are inserted into the corresponding sockets. In addition, the sockets need to be grouted until overflow. The on-site grouting process takes up construction time, and due to technical problems of the technicians, the grouting quality is uneven and the construction quality is poor. Summary of the Invention

[0003] The purpose of the present invention is to overcome the defects of the prior art and provide a prefabricated wall grouting-free connection device and a connection method thereof, which eliminates the construction process of on-site grouting reinforcement. As long as the prefabricated wall is hoisted into place, the mortar raw materials and water in the sleeve will automatically react to form a sealing mortar to seal the sleeve.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is a prefabricated wall grouting-free connection device, comprising:

[0005] A sleeve is used to be vertically embedded in the bottom of the prefabricated wall. The bottom end of the sleeve passes through the prefabricated wall and forms an insertion space for inserting reserved steel bars. The length of the sleeve is adapted to the length of the reserved steel bars.

[0006] a flexible partition, the flexible partition being arranged in the middle of the insertion space to separate the insertion space into an upper compartment and a lower compartment, the diameter of the upper compartment being larger than the diameter of the lower compartment, the flexible partition being clipped to the top end of the lower compartment and having an interference fit with the lower compartment;

[0007] A flexible sealing plate is clamped at the bottom end of the lower cabin and has an interference fit with the lower cabin. Mortar raw materials are pre-stored in the upper cabin, and water is pre-stored in the lower cabin. When the prefabricated wall is hoisted, the reserved steel bars push the flexible sealing plate and the flexible partition into the upper cabin, so that the mortar raw materials and water are mixed to form a sealing mortar, and the sealing mortar anchors the reserved steel bars in the sleeve.

[0008] A further improvement of the grouting-free connection device for prefabricated walls of the present invention is that connecting ribs are vertically pre-embedded at the bottom of the prefabricated wall, and the connecting ribs are connected to the sleeve.

[0009] A further improvement of the prefabricated wall grouting-free connection device of the present invention is that a rubber sealing ring for sealing the insertion space is connected to the bottom of the reserved steel bar.

[0010] A further improvement of the prefabricated wall grouting-free connection device of the present invention is that an admixture for intensifying the reaction with the mortar raw materials is added to the water.

[0011] A further improvement of the prefabricated wall grouting-free connection device of the present invention is that a ventilation channel for balancing the pressure in the upper cabin is axially opened in the side wall of the sleeve, one end of the ventilation channel passes through the bottom end of the sleeve, and the other end extends to the upper cabin and is connected to the upper cabin.

[0012] A grouting-free connection method for prefabricated walls, comprising the steps of:

[0013] Step 1: Provide the above-mentioned prefabricated wall grouting-free connection device and embed it in the bottom of the prefabricated wall;

[0014] Step 2: hoisting the prefabricated wall to above the reserved steel bars on the existing structure so that the insertion space is aligned with the reserved steel bars;

[0015] Step 3: Gradually lower the prefabricated wall so that the reserved steel bars are gradually inserted into the insertion space, push the flexible sealing plate and the flexible partition into the upper cabin, fully mix the mortar raw materials with water to form a sealing mortar, and anchor the reserved steel bars in the sleeve.

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] 1. The construction process of on-site grouting reinforcement is eliminated. As long as the prefabricated wall is hoisted into place, the mortar raw materials and water in the sleeve will automatically react to form a sealing mortar to seal the sleeve.

[0018] 2. By setting up a ventilation channel, when the reserved steel bars push the flexible cover plate, the pressure in the upper cabin is balanced to avoid excessive pressure in the upper cabin affecting the pushing of the flexible cover plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is a structural perspective view of the prefabricated wall grouting-free connection device of the present invention.

[0021] In the figure: 1. Prefabricated wall; 2. Sleeve; 201. Upper cabin; 202. Lower cabin; 3. Flexible partition; 4. Flexible sealing plate; 5. Connecting rib; 6. Ventilation channel. DETAILED DESCRIPTION

[0022] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different viewpoints and applications without departing from the spirit of the present invention.

[0023] The following is a further detailed description of the prefabricated wall grouting-free connection device and the connection method thereof in conjunction with the accompanying drawings and specific embodiments.

[0024] See also Figure 1 As shown, the prefabricated wall grouting-free connection device includes:

[0025] The sleeve 2 is used to be vertically embedded in the bottom of the prefabricated wall 1. The bottom end of the sleeve 2 passes through the prefabricated wall 1 and forms an insertion space for the reserved steel bars. The length of the sleeve 2 is adapted to the length of the reserved steel bars.

[0026] A flexible partition 3 is provided in the middle of the insertion space to separate the insertion space into an upper compartment 201 and a lower compartment 202. The diameter of the upper compartment 201 is larger than the diameter of the lower compartment 202. The flexible partition 3 is clipped to the top of the lower compartment 202 and has an interference fit with the lower compartment 202.

[0027] The flexible sealing plate 4 is clamped at the bottom end of the lower chamber 202 and has an interference fit with the lower chamber 202. Mortar raw materials are pre-stored in the upper chamber 201, and water is pre-stored in the lower chamber 202. When the prefabricated wall 1 is hoisted, the reserved steel bars push the flexible sealing plate 4 and the flexible partition 3 into the upper chamber 201, so that the mortar raw materials and water are mixed to form a sealing mortar, and the sealing mortar anchors the reserved steel bars in the sleeve 2.

[0028] The construction process of on-site grouting reinforcement is eliminated. As long as the prefabricated wall 1 is hoisted into place, the mortar raw materials and water in the sleeve 2 will automatically react to form a sealing mortar to seal the sleeve 2.

[0029] Specifically, the bottom end of the upper chamber 201 is retracted inward and extends downward to form a funnel-shaped connecting section, and the funnel-shaped connecting section is connected to the top end of the lower chamber 202.

[0030] By providing the funnel-shaped connecting section, it is ensured that the mortar raw materials in the upper chamber 201 have a tendency to fall at all times.

[0031] Specifically, a protrusion is connected to the top of the flexible partition 3 .

[0032] By arranging the protrusion on the top of the flexible partition 3, the mortar raw materials are prevented from piling up on the top of the flexible partition 3, thereby ensuring that the mortar raw materials can be fully mixed with water subsequently.

[0033] Specifically, the bottom end of the lower chamber 202 is retracted inward to form an anti-falling section for preventing the flexible sealing plate 4 from falling off.

[0034] The use principle of a prefabricated wall grouting-free connection device:

[0035] Lift the prefabricated wall 1 to the top of the reserved steel bars on the existing structure so that the insertion space is opposite to the reserved steel bars, and gradually lower the prefabricated wall 1 so that the reserved steel bars are gradually inserted into the insertion space. At this time, the reserved steel bars push the flexible sealing plate 4 to move toward the upper cabin 201, and the flexible sealing plate 4 drives the water in the lower cabin 202 to move toward the upper cabin 201. As the flexible sealing plate 4 continues to move, the pressure generated by the squeezing of the water in the lower cabin 202 will push the flexible partition 3 upward and enter the upper cabin 201 to initially react with the mortar raw materials. As the flexible sealing plate 4 completely enters the upper cabin 201, the mortar raw materials will fall into the lower cabin 202 due to their own gravity, and then the mortar raw materials and the water will fully react to form a sealing mortar, which anchors the reserved steel bars in the sleeve 2.

[0036] Preferably, a connecting rib 5 is vertically embedded in the bottom of the prefabricated wall 1 , and the connecting rib 5 is connected to the sleeve 2 .

[0037] Specifically, by providing the connecting rib 5 to be connected to the sleeve 2, the connection stability of the sleeve 2 is improved. In addition, when the reserved steel bar is anchored in the sleeve 2, the connection stability of the prefabricated wall 1 is ensured.

[0038] Preferably, the bottom of the reserved steel bar is connected to a rubber sealing ring for sealing the insertion space.

[0039] By arranging the rubber sealing ring at the bottom of the reserved steel bar, when the prefabricated wall 1 is completely placed on the existing structure, the reserved steel bar is completely inserted into the sleeve 2, and the rubber sealing ring seals the gap between the prefabricated wall 1 and the existing structure, preventing the sealing mortar in the sleeve 2 from leaking out, thereby improving the sealing effect.

[0040] Preferably, an admixture is added to the water to intensify the reaction with the mortar raw materials.

[0041] By adding admixtures to water, it is ensured that the mortar raw materials can fully react when mixed with the water, thereby improving the preparation efficiency of the sealing mortar.

[0042] Specifically, the mortar raw material is a high-strength and workable mortar raw material with no shrinkage and high strength.

[0043] Preferably, a ventilation channel 6 for balancing the pressure in the upper chamber 201 is axially opened in the side wall of the sleeve 2, one end of the ventilation channel 6 passes through the bottom end of the sleeve 2, and the other end extends to the upper chamber 201 and communicates with the upper chamber 201.

[0044] By providing the ventilation channel 6 , when the reserved steel bars push the flexible sealing plate 4 , the pressure in the upper cabin 201 is balanced, thereby preventing the pressure in the upper cabin 201 from being too high and affecting the pushing of the flexible sealing plate 4 .

[0045] A grouting-free connection method for prefabricated walls, comprising the steps of:

[0046] Step 1: Provide the above-mentioned prefabricated wall grouting-free connection device and embed it in the bottom of the prefabricated wall 1;

[0047] Step 2: Hoist the prefabricated wall 1 to the top of the reserved steel bars on the existing structure so that the insertion space is aligned with the reserved steel bars;

[0048] Step 3: Gradually lower the prefabricated wall 1 so that the reserved steel bars are gradually inserted into the insertion space, push the flexible sealing plate 4 and the flexible partition 3 into the upper cabin 201, mix the mortar raw materials with water to form a sealing mortar, and anchor the reserved steel bars in the sleeve 2.

[0049] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for understanding and reading by those familiar with this technology, and are not used to limit the conditions for implementation of the present invention. Therefore, they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the efficacy and purpose that can be achieved by the present invention. At the same time, terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of implementation of the present invention without substantially changing the technical content.

[0050] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A prefabricated wall grouting-free connection device, characterized in that: include: A sleeve is used to be vertically embedded in the bottom of the prefabricated wall. The bottom end of the sleeve passes through the prefabricated wall and forms an insertion space for inserting reserved steel bars. The length of the sleeve is adapted to the length of the reserved steel bars. a flexible partition, the flexible partition being arranged in the middle of the insertion space to separate the insertion space into an upper compartment and a lower compartment, the diameter of the upper compartment being larger than the diameter of the lower compartment, the flexible partition being clipped to the top end of the lower compartment and having an interference fit with the lower compartment; A flexible sealing plate is clamped at the bottom end of the lower cabin and has an interference fit with the lower cabin. Mortar raw materials are pre-stored in the upper cabin, and water is pre-stored in the lower cabin. When the prefabricated wall is hoisted, the reserved steel bars push the flexible sealing plate and the flexible partition into the upper cabin, so that the mortar raw materials and water are mixed to form a sealing mortar, and the sealing mortar anchors the reserved steel bars in the sleeve.

2. The prefabricated wall grouting-free connection device according to claim 1, characterized in that: The bottom of the prefabricated wall is also vertically pre-buried with connecting ribs, which are connected to the sleeve.

3. The prefabricated wall grouting-free connection device according to claim 1, characterized in that: The bottom of the reserved steel bar is connected with a rubber sealing ring for sealing the insertion space.

4. The prefabricated wall grouting-free connection device according to claim 1, characterized in that: An admixture is added to the water to intensify the reaction with the mortar raw materials.

5. The prefabricated wall grouting-free connection device according to claim 1, characterized in that: A ventilation channel for balancing the pressure in the upper chamber is axially opened in the side wall of the sleeve. One end of the ventilation channel passes through the bottom end of the sleeve, and the other end extends to and communicates with the upper chamber.

6. A grouting-free connection method for prefabricated walls, characterized in that: Including steps: Step 1: providing the prefabricated wall grouting-free connection device as claimed in claim 1 and pre-buried it at the bottom of the prefabricated wall; Step 2: hoisting the prefabricated wall to above the reserved steel bars on the existing structure so that the insertion space is aligned with the reserved steel bars; Step 3: Gradually lower the prefabricated wall so that the reserved steel bars are gradually inserted into the insertion space, push the flexible sealing plate and the flexible partition into the upper cabin, fully mix the mortar raw materials with water to form a sealing mortar, and anchor the reserved steel bars in the sleeve.

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