Prefabricated shearing wall rapid-drying sealing warehouse material grouting structure and construction method

Abstract

The application relates to the technical field of fabricated building construction, and particularly discloses a kind of fabricated shear wall quick-drying sealing warehouse material grouting structure and construction method;Including walking cart, sealing warehouse assembly and grouting assembly;Sealing warehouse assembly is used to block quick-drying sealing warehouse material in the gap between fabricated shear wall and floor, grouting assembly includes grouting head for inserting into preset hole of shear wall to execute grouting and hole plugging mechanism for blocking preset hole after grouting;The application is based on walking cart as a mobile basis, and sealing warehouse assembly and grouting assembly are assembled together, in the process of assembling and constructing fabricated shear wall, one person can operate, and manual stoop work is not needed, which saves manpower, greatly reduces labor intensity, improves construction flexibility and convenience;In addition, the whole structure is simple, easy to operate, and is a pure mechanical manual structure, which greatly improves the practicality and durability of actual use.

Description

Technical Field

[0001] This invention relates to the field of prefabricated building construction technology, and specifically proposes a prefabricated shear wall quick-drying sealing grouting structure and construction method. Background Technology

[0002] In the construction of prefabricated buildings, prefabricated shear walls, as precast wall components, need to be vertically assembled on the floor base and connected to the floor by pouring concrete. During assembly, after the prefabricated shear wall is hoisted to the assembly position, it needs to be raised and leveled using shims to ensure its horizontality. The bottom of the prefabricated shear wall also needs to be divided into sections for subsequent grouting. Therefore, after hoisting, a horizontal gap exists between the prefabricated shear wall and the floor. Before grouting, a sealing process is required to seal the gap. In this invention, a quick-drying sealing material is used as the grout for sealing the gap, and grouting is carried out only after the quick-drying sealing material reaches its sealing strength. During the sealing process, the quick-drying sealing material needs to be compacted to avoid air pockets that could affect the sealing strength. Furthermore, it is especially important to ensure the bonding strength between the quick-drying sealing material and the upper and lower edges of the gap to prevent grout leakage or even bursting during subsequent grouting. However, the existing prefabricated construction process mainly suffers from the following problems.

[0003] 1. To minimize the risk of grout leakage or bursting and ensure the tightness of the seal, during the sealing process, according to construction specifications, a retaining strip is used to extend into the gap as an inner support to facilitate compaction of the grout. For ease of construction, two people are often employed: one applies the grout while the other holds the retaining strip and moves it synchronously along the gap. After sealing the gap, to enhance the adhesion between the grout and the upper and lower edges of the gap, a round pipe is used to further compact the sealing grout. This means that the sealing process requires two people and involves multiple steps, which is labor-intensive and inefficient. Furthermore, the sealing process requires strict adherence to technical specifications, and the quality of the sealing is greatly affected by human operation.

[0004] 2. During grouting, it is necessary to manually hold the grouting head and aim it at the pre-set holes of the prefabricated shear wall for grouting. It is also necessary to manually seal the pre-set holes. Therefore, the operator needs to make frequent adjustments to their body position. Similar to the sealing process, since the gap is located at the bottom of the wall and the grouting position is close to the bottom of the wall, the operator needs to bend over and squat down to work. The construction is very inconvenient and physically demanding, increasing the risk of lumbar muscle strain. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a prefabricated shear wall quick-drying sealing grouting structure and construction method, which solves the problems mentioned in the background art.

[0006] A prefabricated shear wall quick-drying sealing material grouting structure includes a traveling trolley, a sealing assembly, and a grouting assembly. The traveling trolley is equipped with a lifting component. The sealing assembly is used to seal the quick-drying sealing material in the gap between the prefabricated shear wall and the floor slab. It includes a storage bin fixed to the lifting end of the lifting component and used to store the quick-drying sealing material. The storage bin is equipped with a material control mechanism to adjust the opening of its discharge end and assist in material discharge. A sealing strip is fixed to one side of the outer wall of the storage bin for extending into the gap, and a sealing strip is installed on the other side to fill the gap with the quick-drying sealing material. The grouting assembly includes a grouting head for inserting into a pre-drilled hole in the shear wall to perform grouting and a plugging mechanism for sealing the pre-drilled hole after grouting. The plugging mechanism includes a shifting component fixed to the outer wall of the storage bin, a plugging bin for storing plugs is vertically slidably mounted on the shifting component, the shifting component is used to move in a direction perpendicular to the shear wall surface to switch the position of the plugging bin, and a pusher for pushing out the plugs is horizontally slidably mounted on the plugging bin. The grouting head is fixed to the bottom end of the plugging bin.

[0007] Preferably, the material storage bin has a discharge notch on the contact surface that contacts the prefabricated shear wall and on one of the side walls adjacent to the contact surface, and the discharge notch is located at the bottom of the material storage bin; the troweling component is arranged to be aligned with the discharge notch.

[0008] Preferably, the wiping component includes a spring-loaded floating frame fixed to the outer wall of the storage hopper and a wiping plate assembled at the lower end of the spring-loaded floating frame. The wiping surface of the wiping plate is set at an inverted angle on the side near the discharge notch. Multiple pressure rollers for compacting the quick-drying sealing material are vertically and rotatably installed on the wiping plate.

[0009] Preferably, a discharge baffle is horizontally fixed inside the storage bin, and a discharge hole is provided on the discharge baffle; the material control mechanism includes two sealing members whose bottom ends contact the discharge baffle and are used to seal the discharge hole. The two sealing members pass upward through the storage bin and are horizontally slidably installed on the storage bin. A guide sleeve is fixed on the outer wall of the storage bin. A lifting rod is vertically and slidably installed through the guide sleeve. A connecting rod is hinged between the bottom end of the lifting rod and the two sealing members. A return spring is sleeved on the lifting rod. The two ends of the return spring are respectively fixed to the bottom end of the guide sleeve and the hinge joint of the lifting rod.

[0010] Preferably, a crossbeam is horizontally fixed at the top of the lifting rod; a material-dispersing component extending into the storage bin is fixed at the bottom of the crossbeam; when the lifting rod slides up and down, the material-dispersing component loosens the quick-drying sealing material in the storage bin.

[0011] Preferably, the pressure roller is provided with a pressing section for compacting the quick-drying sealing material, and the upper and lower edges of the pressing section are rounded; the radius and rounded corners of the pressing section gradually increase as the multiple pressure rollers are further away from the discharge gap.

[0012] Preferably, the plugging chamber includes a push section at the bottom, in which a push channel is formed through the push section along the moving direction of the shifting component; a stroke hole is formed at the upper end of the push section extending axially along the push channel; the pusher includes a push head slidably installed in the push channel and a push rod fixed to the push head, the push rod passing vertically through the stroke hole.

[0013] Preferably, the grouting head is horizontally fixed at the bottom of the pushing section, and the central axes of the grouting head and the pushing channel are arranged vertically and coplanarly.

[0014] Preferably, the end-blocking bin further includes a pre-storage section and a transfer section, the transfer section being inclinedly connected between the bottom end of the pre-storage section and the side wall of the push section; the shifting component includes a horizontal rail fixed on the outer wall of the storage bin and a shifting slider slidably mounted on the horizontal rail; a vertical rail is fixed on the outer wall of the pre-storage section, the shifting slider is slidably mounted on the vertical rail, and a compression spring is vertically fixed between the shifting slider and the vertical rail.

[0015] In addition, the present invention also provides a method for grouting quick-drying sealing material for prefabricated shear walls, comprising the following steps:

[0016] S1. Prepare materials according to the construction technical requirements;

[0017] S2. Measure and mark out the assembly area;

[0018] S3. Process and divide the assembly base layer into compartments;

[0019] S4. Correctly hoist the prefabricated shear wall to the assembly position;

[0020] S5. Using quick-drying sealing material as slurry, a walking trolley is pushed to perform sealing construction through the sealing assembly;

[0021] S6. After the quick-drying sealing material reaches the bonding strength, push the walking trolley and carry out grouting construction through the grouting assembly.

[0022] The above technical solution has the following advantages or beneficial effects: This invention provides a prefabricated shear wall quick-drying sealing grouting structure, which uses a walking cart as a mobile base and is equipped with a sealing assembly and a grouting assembly. During the assembly and construction of the prefabricated shear wall, it can be operated by a single person without the need for manual bending and squatting, which saves manpower, greatly reduces labor intensity, and improves the flexibility and convenience of construction. In addition, the overall structure is simple, easy to operate, and is a purely mechanical manual structure, which greatly improves the practicality and durability of actual use.

[0023] During the sealing process, a single person can easily control the quick-drying sealing material to spread and leak out along the gaps. The material is then initially filled using a trowel, and three rollers are used to compact the quick-drying sealing material in the gaps, both at the main body and the edges. This eliminates the need for multiple steps, ensuring standardized and uniform construction, reducing the impact of human intervention, and guaranteeing the density of the sealing. In particular, it ensures the bonding strength of the quick-drying sealing material at the edges of the gaps, which greatly reduces the possibility of grout leakage or even bursting at the sealing point during subsequent grouting.

[0024] During grouting, only one person is needed to adjust and control the position, which can be quickly adjusted and switched to perform grouting and quick hole plugging operations. The flexibility and convenience of operation are greatly improved, and manual labor is greatly saved. Attached Figure Description

[0025] The invention, its features, shape, and advantages will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings. Like reference numerals denote like parts throughout the drawings, which are not intentionally drawn to scale; the focus is on illustrating the spirit of the invention.

[0026] Figure 1 This is a three-dimensional structural diagram of a prefabricated shear wall quick-drying sealing grouting structure;

[0027] Figure 2 It is a three-dimensional sectional view of the assembly of the storage bin, material control mechanism and traveling trolley;

[0028] Figure 3 It is a three-dimensional structural diagram of the assembly of the storage bin and the wiping component;

[0029] Figure 4 This is a three-dimensional sectional view of the grouting assembly;

[0030] Figure 5 This is a three-dimensional construction diagram of a prefabricated shear wall quick-drying sealing grouting structure.

[0031] Figure 6 This is a side view of a prefabricated shear wall quick-drying sealing grouting structure during sealing construction.

[0032] Figure 7 This is a top view of a prefabricated shear wall quick-drying sealing grouting structure during sealing construction.

[0033] Figure 8 This is a top view of a prefabricated shear wall quick-drying sealing grouting structure during grouting construction.

[0034] Figure 9 This is a step-by-step diagram of a prefabricated shear wall quick-drying sealing grouting construction method.

[0035] In the diagram: 1. Walking trolley; 11. Lifting assembly; 12. Hopper fixing frame; 13. Adjusting screw; 2. Storage hopper; 21. Discharge partition; 22. Discharge notch; 23. Material control mechanism; 231. Sealing component; 232. Guide sleeve; 233. Lifting rod; 234. Connecting rod; 235. Return spring; 236. Crossbeam; 237. Handle; 238. Secondary slider; 24. Material guide component; 241. Base plate; 242. Material guide claw; 3. Hopper sealing strip; 4. Material wiping component; 41. Elastic floating frame; 42. Wiping... Material plate; 43, pressure roller; 431, pressing section; 5, plugging mechanism; 51, shifting component; 511, horizontal rail; 512, shifting slider; 513, positioning pin; 52, plugging chamber; 521, pre-storage section; 522, transfer section; 523, pushing section; 524, stroke hole; 525, vertical rail; 526, compression spring; 53, pushing component; 531, pushing head; 532, pushing rod; 6, grouting head; 71, floor; 72, prefabricated shear wall; 721, grouting hole; 722, grout outlet hole; 73, plug. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0038] It needs to be emphasized and explained that, such as Figures 1-8 As shown in all the attached figures, in order to make the overall structure more compact, the vertical dimensions are uniformly reduced in proportion to the horizontal dimensions, with a ratio of 1:3.

[0039] like Figure 1 and Figure 5 As shown, a prefabricated shear wall 72 quick-drying sealing material grouting structure includes a walking cart 1 that is easy for construction personnel to push and move. The walking cart 1 is equipped with a sealing assembly that performs sealing during the assembly and construction of the prefabricated shear wall 72, as well as a grouting assembly that cooperates with grouting. The quick-drying sealing material is made by dry mixing special cement, expansion agent, clean quartz sand, functional modifier, etc. in a special ratio, which can achieve rapid setting and hardening, so as to carry out grouting construction in advance and effectively improve construction efficiency.

[0040] like Figure 1 , Figure 2 and Figure 6As shown, the bottom of the walking cart 1 is equipped with casters; the walking cart 1 is equipped with a lifting assembly 11; the lifting assembly 11 includes a hopper fixing frame 12 and an adjusting screw 13. The walking cart 1 is welded with a lifting track that cooperates with the hopper fixing frame 12. The hopper fixing frame 12 is vertically slidably installed on the lifting track. The adjusting screw 13 is vertically rotatably installed on the walking cart 1 through a bearing, and the adjusting screw 13 is threadedly connected to the hopper fixing frame 12.

[0041] like Figure 2 and Figure 3 As shown, the sealing assembly is used to seal the quick-drying sealing material in the gap between the prefabricated shear wall 72 and the floor 71. The sealing assembly includes a storage bin 2 welded and fixed to the bin fixing frame 12. The storage bin 2 can be divided into a storage section, a sliding section, and a discharge section from top to bottom. The storage section serves as the main compartment for storing the quick-drying sealing material. The bottom end of the sliding section is a ramp surface used to guide the quick-drying sealing material to the discharge section. The discharge section is a rectangular bin structure. During the sealing construction process, such as... Figure 6 As shown, the left side of the discharge section is the contact surface with the prefabricated shear wall 72. The bottom of the discharge section is open, and a discharge notch 22 is provided on the contact surface of the discharge section and on one of the side walls adjacent to the contact surface. The discharge notch 22 is located at the bottom of the discharge section. A discharge baffle 21 is horizontally welded inside the discharge section, and a rectangular discharge hole is provided in the center of the discharge baffle 21. In addition, in order for the traveling trolley 1 to travel along the wall of the prefabricated shear wall 72 during the sealing construction process, rollers can be installed on the side wall of the storage section located on the same side as the contact surface of the discharge section, and the rollers are tangent to the contact surface.

[0042] like Figure 1 , Figure 2 and Figure 3As shown, the storage bin 2 is equipped with a material control mechanism 23 for adjusting the opening of its discharge hole and assisting in material discharge. The material control mechanism 23 includes two sealing parts 231 whose bottom ends contact the discharge partition 21 and are used to seal the discharge hole. The top of the discharge section has a through hole parallel to its contact surface in the length direction. The two sealing parts 231 pass upward through the through hole. A guide bar is horizontally welded to the top of the discharge section. The two sealing parts 231 slide with the guide bar. A guide sleeve 232 is welded to the outer wall of the storage section on the same side as the contact surface of the discharge section. A lifting rod 233 is vertically and slidably installed on the guide sleeve 232. The lifting rod 233 is a square rod structure. A hinge joint is welded to the bottom of the lifting rod 233. A connecting rod 234 is hinged between the hinge joint and the top of the two sealing parts 231. A return spring 235 is sleeved on the lifting rod 233. The two ends of the return spring 235 are respectively fixed to the guide sleeve 232. The bottom end and the hinge joint of the lifting rod 233; the top end of the lifting rod 233 is horizontally fixed with a crossbeam 236 by bolts. The crossbeam 236 is fixed to the lifting rod 233 near one end. The other end of the crossbeam 236 is welded with a double-headed handle 237. The handle 237 is symmetrically welded with auxiliary sliders 238 at both ends. The two auxiliary sliders 238 are vertically slidably mounted on the walking cart 1. The lifting rod 233 is connected to the handle 237 through the crossbeam 236, which makes it easy for the worker to hold the handle 237 to control the lifting of the lifting rod 233. In addition, the sliding cooperation between the auxiliary sliders 238 and the walking cart 1 indirectly enhances the overall strength and stability of the crossbeam 236. When the return spring 235 is in its natural state, the two sealing parts 231 are tightly pressed against each other and completely closed to the discharge port. In this state, quick-drying sealing material can be filled into the storage bin 2. When the worker grips the handle 237 and presses it down, the handle 237 drives the lifting rod 233 to descend through the crossbeam 236. The lifting rod 233 drives the two sealing parts 231 to slide away from each other through the connecting rod 234, so that the discharge port opens and the quick-drying sealing material can fall downward. It should be added that a compound spring with reasonable stiffness can be selected so that the resistance is appropriate when the worker presses it.

[0043] During construction, quick-drying sealing material is used to seal the gaps between the prefabricated shear wall 72 and the floor 71. Generally, the quick-drying sealing material needs to be prepared into a slurry with poor fluidity and a semi-dry, slightly stiff state to ensure that the slurry can stand firm in the gap without collapsing. Furthermore, since the quick-drying sealing material dries quickly, to prevent it from solidifying too quickly in the storage hopper 2 and to ensure that it can fall normally from the discharge hole, such as... Figure 2As shown, a material-dispersing component 24 is also fixed at the bottom end of the crossbeam 236. The material-dispersing component 24 includes a base plate 241 welded to the bottom end of the crossbeam 236. The base plate 241 extends into the storage section of the storage bin 2 and is centrally located. Dispersing claws 242 are welded in an array on both sides of the base plate 241. The dispersing claws 242 are bent cylindrical thin rods. During construction, when the worker presses the handle 237 to ensure that the discharge hole is open, by pressing and releasing the handle 237 slightly, the material-dispersing component 24 can shake up and down with the cooperation of the return spring 235. This allows the dispersing claws 242 to disturb and loosen the quick-drying sealing material to prevent it from drying out and to promote the flowability of the quick-drying sealing material. It can also control and adjust the discharge speed.

[0044] like Figure 1 , Figure 3 and Figure 8 As shown, sealing strips 3 and wiping components 4 are fixed on the outer walls of the discharge section on both sides adjacent to the contact surface. The wiping component 4 is adjacent to and connected to the discharge notch 22. The sealing strips 3 are used to extend into the gap and provide inner support for the wiping component 4. The sealing strips 3 are long strips and are arranged parallel to the contact surface of the discharge section. They extend horizontally from the end fixed to the discharge section to cover the entire front of the wiping component 4. The bottom ends of the sealing strips 3 and the discharge section are flush. The vertical width of the gap is mostly about 20mm, and the width of the sealing strips 3 is slightly less than 20mm, actually 19mm, to facilitate extending into the gap.

[0045] like Figure 1 and Figure 3 As shown, the wiping component 4 includes a spring-loaded floating frame 41 and a wiping plate 42 mounted on the lower end of the spring-loaded floating frame 41. In this embodiment, the spring-loaded floating frame 41 includes a slide rail and a floating spring. The slide rail is vertically welded to the side wall of the discharge section, and the wiping plate 42 is vertically slidably mounted on the slide rail. The two ends of the floating spring are respectively welded to the slide rail and the wiping plate 42. The wiping surface of the wiping plate 42 is chamfered on the side near the discharge notch 22, and the distance between the wiping surface of the wiping plate 42 and the sealing strip 3 is greater than the distance between the contact surface of the discharge section and the sealing strip 3, with a distance difference of 15. The material is approximately mm thick to ensure that the trowel plate 42 can cover the gaps with quick-drying sealing material. Three pressure rollers 43 are vertically and rotatably mounted on the trowel plate 42 to compact the quick-drying sealing material step by step. The three pressure rollers 43 are distributed in sequence in a horizontal straight line parallel to the contact surface of the discharge section, with the central axis as the reference. The bottom end of the pressure roller 43 is provided with a pressing section 431 for compacting the quick-drying sealing material. The pressing section 431 is round and the upper and lower edges of the pressing section 431 are rounded. The radius and roundness of the pressing section 431 gradually increase as the distance from the discharge gap 22 increases.

[0046] The pre-installed assembly positions on the floor 71 that cooperate with the prefabricated shear wall 72 are usually on the same plane as the floor 71. A small number of floors 71 have prefabricated corresponding assembly bosses. Therefore, the lower edge of the gap is the floor 71. During construction, the sealing assembly can be raised and lowered as a whole by adjusting the lifting component 11 to ensure that the pressing section 431 of the pressure roller 43 is aligned with the gap. When the assembly position of the prefabricated shear wall 72 is a non-boom structure, the bottom ends of the discharge section of the storage bin 2, the troweling plate 42 and the pressing section 431 of the pressure roller 43 are all in contact with the floor 71. The floor 71 is usually uneven. The elastic floating frame 41 used in the troweling component 4 can realize the overall adaptive floating of the troweling plate 42 and the pressure roller 43, reduce resistance and improve the passability during construction movement.

[0047] like Figure 5 As shown, the prefabricated shear wall 72 is prefabricated according to the design dimensions, and multiple sets of evenly distributed pre-set holes are opened on one side of the wall. Each set of pre-set holes consists of two holes, which are vertically distributed. Among the two pre-set holes, the upper pre-set hole is the grout outlet hole 722, and the lower pre-set hole is the grouting hole 721. The grouting assembly includes a grouting head 6 for inserting into the grouting hole 721 to perform grouting and a plugging mechanism 5 for sealing the pre-set holes after grouting. The grouting head 6 is used in conjunction with an existing grouting machine. One end of the grouting head 6 is provided with a threaded interface. One end of the grouting hose of the grouting machine can be fixed with a threaded sleeve that is threadedly tightened with the threaded interface of the grouting head 6. They can be connected when in use and disassembled when not in use. In addition, the selected grouting machine can be started and stopped wirelessly and can be frequency-controlled to adjust the pressure in real time according to different stages of grouting to reduce the risk of grout leakage and bursting.

[0048] like Figure 1 , Figure 4 and Figure 5 As shown, the plugging mechanism 5 includes a shifting component 51, a plugging chamber 52, and a pushing component 53. The plugging chamber 52 is divided into a pre-storage section 521, a transfer section 522, and a pushing section 523 from top to bottom. The pre-storage section 521 is a vertical chamber structure with openings at the top and bottom, which is the main chamber for pre-storing plugs 73. Multiple plugs 73 can be stacked vertically in the pre-storage chamber one by one. The pre-storage chamber can only accommodate one plug 73 within its horizontal dimension. The transfer section 522 is inclined and connected between the bottom end of the pre-storage section 521 and the side wall of the pushing section 523. Only a single plug 73 can slide through the transfer section 522.

[0049] like Figure 1 and Figure 4As shown, the shifting assembly 51 includes a horizontal rail 511 welded to the outer wall of the storage bin 2 and a shifting slider 512 slidably mounted on the horizontal rail 511; a vertical rail 525 is welded to the outer wall of the pre-storage section 521, and the shifting slider 512 is slidably mounted on the vertical rail 525. A compression spring 526 is vertically fixed between the shifting slider 512 and the vertical rail 525; the horizontal rail 511 is set perpendicular to the contact surface of the discharge section, and the shifting slider 512 can move in a direction perpendicular to the wall surface of the prefabricated shear wall 72. The purpose is to achieve relative position switching between the sealing assembly and the grouting assembly during the two construction stages of sealing and grouting. In order to achieve position locking after shifting, two pin holes are opened on the horizontal rail 511 from the top, distributed in its guiding direction. A positioning pin 513 that can be inserted into the shifting slider 512 can be engaged with the pin holes.

[0050] like Figure 1 and Figure 4 As shown, a push channel is provided in the push section 523 along the sliding direction of the shift slider 512. Similarly, only one plug 73 can pass through the push channel. A stroke hole 524 extending axially along the push channel is provided at the upper end of the push section 523. The push member 53 includes a push head 531 slidably installed in the push channel and a push rod 532 welded to the push head 531. The push rod 532 passes vertically through the stroke hole 524. The stroke hole 524 can indirectly limit the pushing movement range of the push head 531 by limiting the push rod 532. When the push rod 532 is at the position farthest from the sealing bar 3, the push head 531 completely avoids the connection position between the transfer section 522 and the push section 523, so as to ensure that the plug 73 can slide normally from the pre-storage section 521 along the transfer section 522 into the push section 523.

[0051] like Figure 4 As shown, the grouting head 6 is horizontally fixed to the bottom of the pushing section 523 by a fixing frame, and the grouting head 6 and the pushing channel are arranged vertically and coplanarly with their central axes.

[0052] In addition, such as Figures 1-9 As shown, the present invention also provides a method for grouting prefabricated shear walls using 72 quick-drying sealing material, comprising the following steps:

[0053] S1. Prepare materials according to construction technical requirements. Specifically, before construction, conduct technical briefings for construction personnel to ensure that construction operations meet the specifications; and prepare the prefabricated shear wall 72, including pre-determined transportation, connection materials, grouting materials, auxiliary materials, construction tools and equipment, etc.

[0054] S2. Measure and lay out the assembly area. Specifically, by measuring and laying out, the planar assembly position of the wall is determined, ensuring the accuracy of the axis and edge dimensions, and controlling the wall elevation and verticality, providing a benchmark for the subsequent hoisting, positioning, and position correction of the prefabricated shear wall 72.

[0055] S3. Treat and divide the assembly base layer into sections. Specifically, clean the debris in the assembly area of ​​floor 71. Grooves can be made at the grouting connection points of floor 71 to improve the strength of the pouring adhesion. A laser level can be used as an aid, and steel shims can be used to level the placement of the prefabricated shear wall 72. Then, the assembly area is divided into sections using dry-hardened mortar to isolate the sections for subsequent grouting. It should be noted that multiple sleeves for grouting are pre-embedded in the prefabricated shear wall 72. The pre-embedded reinforcing bars on floor 71 can extend into the sleeves. Each independent section generally corresponds to multiple sleeves, and each section corresponds to a grouting hole 721 and a grout outlet hole 722.

[0056] S4. Correctly hoist the prefabricated shear wall 72 to the assembly position. Specifically, hoist the prefabricated shear wall 72 and place it on the corresponding assembly area of ​​the floor 71. Support the wall with temporary diagonal supports, and adjust the position of the wall according to the measurement and layout benchmark to ensure verticality and accurate positioning.

[0057] S5. Using quick-drying sealing material as the grout, the traveling trolley 1 is pushed to perform sealing construction through the sealing assembly. Specifically, before construction, the grouting assembly is moved to an off-center position via the switching component 51, such as... Figure 7 As shown, a suitable amount of quick-drying sealing material is pre-filled into the storage bin 2; by adjusting the lifting component 11, the pressing section 431 of the pressure roller 43 is aligned with the gap, and the sealing strip 3 extends into the gap. The construction personnel push the walking cart 1 along the wall from one side to the other. During the movement, the material control mechanism 23 opens the discharge hole, and the quick-drying sealing material is driven to leak from the discharge hole to the discharge gap 22 by micro-movement. Based on the sealing strip 3 as the inner support, during the movement, the trowel 42 first trowels the quick-drying sealing material into the gap, and then passes through three pressure rollers 43. The three pressure rollers 43 compact the quick-drying sealing material in the gap step by step through the pressing section 431 with gradually increasing radius. During the compaction process, the excess quick-drying sealing material overflows from the chamfer of the pressing section 431 to the upper and lower edges of the gap, and the quick-drying sealing material at the edge of the gap is compacted step by step by the three continuously decreasing chamfers.

[0058] S6. After the quick-drying sealing material reaches its bonding strength, push the traveling trolley 1 to perform grouting through the grouting assembly. Specifically, once the bonding strength of the quick-drying sealing material meets the strength requirements after testing, grouting can begin. First, the grouting assembly is switched and moved to the ready-to-work position using the switching component 51, such as... Figure 8 As shown, the height of the grouting assembly is adjusted by the lifting component 11 to a height convenient for grouting operations. A plug 73 is pre-placed in the plug chamber 52. Construction personnel push the traveling trolley 1 from one side of the prefabricated shear wall 72 along the wall surface to the other side. When it reaches the grouting hole 721, the traveling trolley 1 is moved to adjust its horizontal position, and the push rod 532 is held to drive the grouting head 6 to adjust its vertical position. The traveling trolley 1 is pushed vertically relative to the wall surface so that the grouting head 6 is aligned with the insertion hole 721. Inside, grouting is performed using a remote-controlled grouting machine. Once grout continuously and stably overflows from the grout outlet 722 (continuous overflow ensures the internal air is expelled and complete grouting is achieved), the outlet 722 is plugged first. The push section 523 is aligned with the outlet 722, and then the plug 73 is pushed into the outlet 722 by the push rod 532. Subsequently, the grouting hole 721 below is plugged by adjusting the position. Then, the traveling trolley 1 is pushed to complete the grouting and plugging operations for other compartments in sequence.

[0059] This invention provides a prefabricated shear wall 72 quick-drying sealing grouting structure, which uses a walking cart 1 as a mobile base to assemble the sealing assembly and the grouting assembly. During the assembly and construction of the prefabricated shear wall 72, it can be operated by a single person without the need for manual bending and squatting, which saves manpower, greatly reduces labor intensity, and improves the flexibility and convenience of construction. In addition, the overall structure is simple, easy to operate, and is a purely mechanical manual structure, which greatly improves the practicality and durability of actual use.

[0060] During the sealing process, the quick-drying sealing material can be easily controlled by a single person to spread and leak out along the gaps. It is then initially filled by a trowel 42, and then compacted step by step at the main body and edges of the quick-drying sealing material filled in the gaps by three pressure rollers 43. This eliminates the need for multiple steps and ensures the standardization and uniformity of the construction, reducing the impact of human operation and ensuring the density of the sealing. In particular, it ensures the bonding strength of the quick-drying sealing material at the edge of the gap, which can greatly reduce the possibility of leakage or even bursting of the sealing area during subsequent grouting.

[0061] During grouting, only one person is needed to adjust and control the position, which can be quickly adjusted and switched to perform grouting and quick hole plugging operations. The flexibility and convenience of operation are greatly improved, and manual labor is greatly saved.

[0062] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0063] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "installed," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0064] The preferred embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and the devices and structures not described in detail should be understood as being implemented in a manner common to the art; any possible variations and modifications made by those skilled in the art without departing from the technical solution of the present invention, or equivalent embodiments with equivalent changes, do not affect the essential content of the present invention. Therefore, 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 still fall within the protection scope of the technical solution of the present invention.

Claims

1. A prefabricated shear wall quick-drying sealing grouting structure, characterized in that, include: A walking cart equipped with a lifting mechanism; The sealing assembly is used to seal the gap between the prefabricated shear wall and the floor. It includes a storage bin fixed to the lifting end of the lifting component and used to store the quick-drying sealing material. The storage bin is equipped with a material control mechanism to adjust the opening of its discharge end and assist in material discharge. A sealing strip for extending into the gap is fixed on one side of the outer wall of the storage bin, and a material application component is equipped on the other side to fill the gap with quick-drying sealing material and gradually compact it with the edge of the gap. The grouting assembly includes a grouting head for inserting into a pre-set hole in the prefabricated shear wall to perform grouting and a plugging mechanism for sealing the pre-set hole after grouting. The plugging mechanism includes a shifting component fixed to the outer wall of the storage bin. A plugging bin for storing plugs is vertically slidably mounted on the shifting component. The shifting component is used to move in a direction perpendicular to the prefabricated shear wall surface to switch the position of the plugging bin. A pusher for pushing out the plugs is horizontally slidably mounted on the plugging bin. The grouting head is fixed to the bottom end of the plugging bin. The smearing component includes an elastic floating frame fixed to the outer wall of the storage bin and a smearing plate assembled at the lower end of the elastic floating frame. The smearing surface of the smearing plate is set at an inverted angle on the side near the discharge notch. Multiple pressure rollers for compacting the quick-drying sealing material are vertically and rotatably installed on the smearing plate. The pressure roller is equipped with a pressing section for compacting the quick-drying sealing material, and the upper and lower edges of the pressing section are rounded. The radius and rounded corners of the pressing section gradually increase as the multiple pressure rollers are further away from the discharge gap.

2. The prefabricated shear wall quick-drying sealing grouting structure according to claim 1, characterized in that: The material storage bin has a discharge notch on the contact surface that contacts the prefabricated shear wall and on one of the side walls adjacent to the contact surface, and the discharge notch is located at the bottom of the material storage bin; the troweling component is arranged to connect with the discharge notch.

3. The prefabricated shear wall quick-drying sealing grouting structure according to claim 2, characterized in that: A discharge baffle is horizontally fixed inside the storage bin, and a discharge hole is opened on the discharge baffle. The material control mechanism includes two sealing parts whose bottom ends contact the discharge baffle and are used to seal the discharge hole. The two sealing parts pass upward through the storage bin and are horizontally slidably installed on the storage bin. A guide sleeve is fixed on the outer wall of the storage bin. A lifting rod is vertically and slidably installed through the guide sleeve. A connecting rod is hinged between the bottom end of the lifting rod and the two sealing parts. A return spring is sleeved on the lifting rod. The two ends of the return spring are fixed to the bottom end of the guide sleeve and the hinge joint of the lifting rod, respectively.

4. The prefabricated shear wall quick-drying sealing grouting structure according to claim 3, characterized in that: A horizontal beam is fixed to the top of the lifting rod; a material agitator is fixed to the bottom of the beam and extends into the storage bin; when the lifting rod slides up and down, the material agitator loosens the quick-drying sealing material in the storage bin.

5. The prefabricated shear wall quick-drying sealing grouting structure according to claim 1, characterized in that: The plugging chamber includes a push section at the bottom, in which a push channel is formed through the push section along the moving direction of the shifting component; a stroke hole is formed at the upper end of the push section extending axially along the push channel; the pusher includes a push head slidably installed in the push channel and a push rod fixed to the push head, with the push rod passing vertically through the stroke hole.

6. The prefabricated shear wall quick-drying sealing grouting structure according to claim 5, characterized in that: The grouting head is horizontally fixed at the bottom of the pushing section, and the central axes of the grouting head and the pushing channel are arranged vertically and in the same plane.

7. The prefabricated shear wall quick-drying sealing grouting structure according to claim 5, characterized in that: The end-blocking bin also includes a pre-storage section and a transfer section. The transfer section is inclined and connected between the bottom end of the pre-storage section and the side wall of the push section. The shifting component includes a horizontal rail fixed on the outer wall of the storage bin and a shifting slider slidably installed on the horizontal rail. A vertical rail is fixed on the outer wall of the pre-storage section. The shifting slider is slidably installed on the vertical rail. A compression spring is vertically fixed between the shifting slider and the vertical rail.

8. A method for grouting prefabricated shear walls using quick-drying sealing material, wherein the prefabricated shear wall is assembled using the quick-drying sealing material grouting structure described in any one of claims 1-7, characterized in that... Includes the following steps: S1. Prepare materials according to the construction technical requirements; S2. Measure and mark out the assembly area; S3. Process and divide the assembly base layer into compartments; S4. Correctly hoist the prefabricated shear wall to the assembly position; S5. Using quick-drying sealing material as slurry, a walking trolley is pushed to perform sealing construction through the sealing assembly; S6. After the quick-drying sealing material reaches the bonding strength, push the walking trolley and carry out grouting construction through the grouting assembly.

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