A device for sealing and filling the narrow gap at the top of an external wall panel

Abstract

This invention relates to the field of building construction technology, and more particularly to a grouting device for sealing narrow gaps at the top of exterior wall panels. The invention includes: a base with a grout storage tank fixed to the top; and a grouting mechanism disposed between the base and the storage tank. Through the structural design of the grouting and adjusting mechanisms, this invention allows the grouting head to retract at a uniform speed while grouting, filling the gap layer by layer from the inside out. This solves the quality defects of existing technologies. Furthermore, through the structural design of the swinging and slow-retraction mechanisms, the device can swing and sweep to ensure full coverage of the upper and lower wall surfaces, creating a continuous and dense "S-shaped" sweeping path within the gap, with the crest touching the top and trough touching the bottom, ensuring full coverage of the narrow gap and effectively preventing crescent-shaped voids. Simultaneously, the coordinated control of the slow-retraction mechanism ensures a certain overlap in the grout coverage area between adjacent swinging cycles, guaranteeing the uniformity and stability of construction quality.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to a sealing and grouting device for narrow gaps at the top of exterior wall panels. Background Technology

[0002] In prefabricated buildings, after the precast exterior wall panels are hoisted into place, a narrow horizontal gap of 10-35mm is usually left between the top of the wall panel and the bottom of the upper floor slab or beam. This gap needs to be filled with waterproof mortar or special sealant to ensure the integrity, waterproof performance, and structural safety of the wall.

[0003] Chinese invention patent CN105863103A discloses an exterior wall panel installation node, including an upper exterior wall panel, a lower exterior wall panel, and a floor slab. The bottom end of the upper exterior wall panel and the top end of the lower exterior wall panel are provided with grooves. The upper and / or lower exterior wall panels are provided with grouting holes, through which waterproof grout is injected into the joint and the grooves. In this technical solution, sealing elements are provided on both the inner and outer sides of the joint, forming a grouting cavity. Air is discharged through vent holes during the grouting process. However, this solution still has the following drawbacks: First, the sealing elements need to be pre-fixed to the top of the lower exterior wall panel before the wall panel is installed, making the construction process complex, and the sealing elements are prone to displacement during the wall panel placement process, affecting the sealing effect; Second, the grouting holes are located inside the wall panel, allowing grout to be injected only from specific locations along the wall panel's thickness, making it difficult to ensure that the grout fills the entire joint depth, especially in the inner area far from the grouting holes, where incomplete filling is likely.

[0004] Chinese invention patent CN121611232A discloses a grouting system for precast building splice joints, including a grouting mechanism inserted into the splice joint between two adjacent precast wall panels. The grouting mechanism is connected to a retractor via a drive rope, enabling it to be raised and lowered. The grouting mechanism includes a grout outlet body, with grouting slides movably inserted at both ends. This solution uses a retractor to lift the grouting mechanism, enabling uniform and regular grouting operations. However, this technical solution is mainly for vertical splice joints between adjacent wall panels and is not suitable for narrow horizontal joints at the top of exterior wall panels. Furthermore, although the grouting slides can prevent mortar overflow to some extent, their grouting direction is parallel to the length direction of the grout outlet body, which cannot achieve sufficient coverage of the upper and lower walls of the narrow joint with grout, still posing a risk of forming crescent-shaped voids.

[0005] In summary, the existing technology has the following technical problems: During use, the grout cannot fill the entire depth of the joint, making it difficult to guarantee compactness. Due to the large wall thickness, the narrow top joint extends along the wall thickness direction. When grouting is only applied from the outside, the grout's fluidity is limited, making it difficult to ensure that the grout reaches and fills the inner area. This generally results in a quality defect of "compact filling on the outside, but incomplete filling on the inside." Therefore, we propose a sealing and grouting device for narrow top joints in exterior wall panels. Summary of the Invention

[0006] The purpose of this invention is to provide a sealing and grouting device for narrow gaps at the top of exterior wall panels, so as to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] A sealing and grouting device for narrow gaps at the top of an exterior wall panel, comprising:

[0009] A machine base, the top of which is fixed with a slurry storage tank;

[0010] A grouting mechanism is installed between the machine base and the grout storage tank, and is used to transport the grout from the storage tank to the gap at the top of the outer wall panel;

[0011] An adjustment mechanism, disposed on the grouting mechanism, is used to adjust the trajectory of the grouting operation.

[0012] Preferably, the grouting mechanism includes a feed pipe, a grout pump, a discharge pipe, and a grouting head. The feed pipe is fixed to one side of the grout storage tank. The grout pump is fixed to the top of the machine base and near the grout storage tank. The input end of the grout pump is fixed to the feed pipe. The output end of the grout pump is fixed to the discharge pipe. The grouting head is fixed to one end of the discharge pipe.

[0013] Preferably, the adjustment mechanism includes an auxiliary component and a transmission component. A Z-shaped frame is mounted below the grouting head, a handle is fixed to one end of the Z-shaped frame, an auxiliary component is mounted above the Z-shaped frame, and a transmission component is mounted between the auxiliary component and the grouting head.

[0014] Preferably, the auxiliary components include a support plate, a bracket, a positioning block, a first motor, an electric push rod, and a movable ring frame. The top of the Z-shaped frame is equipped with a support plate, and brackets are fixed on both sides of the top of the support plate. A positioning block is fixed on the top of the two brackets, and a first motor is fixed on the bottom of the positioning block. Electric push rods are fixed on both ends of the top of the support plate, and a movable ring frame is fixed at the output end of the two electric push rods. The movable ring frame is slidably connected to the positioning block.

[0015] Preferably, the transmission assembly includes a central shaft, a crossbar, an L-shaped fixing plate, a mounting clip, an L-shaped bent column, a spherical protrusion, and an annular groove. The output end of the first motor is fixed to the central shaft through the positioning block. A crossbar is fixed to the inner side of the central shaft. An L-shaped fixing plate and an L-shaped bent column are fixed to the two ends of the crossbar, respectively. A spherical protrusion is fixed to one end of the L-shaped bent column. A mounting clip is fixed to the top of the L-shaped fixing plate. The mounting clip is engaged with the discharge pipe. An annular groove is provided on the inner side of the movable ring frame. The inner side of the annular groove is in sliding contact with the spherical protrusion.

[0016] Preferably, a rectangular frame is fixed to the bottom of the Z-shaped frame, and a swinging mechanism is assembled on the inner side of the rectangular frame.

[0017] Preferably, the swinging mechanism includes a first mounting block, a second mounting block, a second motor, a swing arm, a force-guiding cylinder, and a mating assembly. One end of the rectangular frame is fixed to the first mounting block, the inner side of the rectangular frame is fixed to the second mounting block, the bottom of the second mounting block is fixed to the second motor, the output end of the second motor passes through the second mounting block and is fixed to the swing arm, the top of the swing arm is fixed to the force-guiding cylinder, and a mating assembly is assembled between the force-guiding cylinder and the rectangular frame.

[0018] Preferably, the mating components include a third mounting block, a straight frame, a through-hole, a sector tooth, a gear, and a drive shaft. The other end of the rectangular frame is fixed to the third mounting block. The top of the third mounting block is rotatably connected to the straight frame. The inside of the straight frame has a through-hole that is slidably connected to a force-guiding cylinder. One end of the top of the straight frame is fixed to a sector tooth. One side of the sector tooth is meshed with a gear. The inside of the gear is fixed to a drive shaft. The drive shaft is rotatably connected to the first mounting block. The top of the drive shaft passes through the first mounting block and is fixed to a support plate.

[0019] Preferably, a connecting frame is fixed to one end of the top of the rectangular frame, and a slow-retreating mechanism is assembled on one side of the connecting frame. The slow-retreating mechanism includes a fixed cylinder, a partition, a buffer column, and a spring. Fixed cylinders are fixed to the four corners of the connecting frame. A spring is fixed to one end of the inner side of each fixed cylinder. A partition is fixed to one end of each spring. A buffer column is fixed to the side of each partition away from the spring. The buffer column and the partition are slidably connected to the fixed cylinder.

[0020] It is clear without a doubt that the technical solution described above in this application can solve the technical problem that this application aims to address.

[0021] Meanwhile, through the above technical solutions, the present invention has at least the following beneficial effects:

[0022] 1. Through the structural design of the grouting mechanism and the adjustment mechanism, the present invention enables the grouting head of the device to start grouting from the deepest part of the narrow gap and retreat at a constant speed while grouting, so that the grout fills the gap layer by layer from the inside to the outside, fundamentally solving the quality defect of "the outside is filled tightly, but the inside is not filled tightly" in the prior art.

[0023] 2. Through the structural design of the swinging mechanism and the slow-retreating mechanism, this invention enables the device to swing and sweep to ensure full coverage of the upper and lower walls. This allows the grout to form a continuous and dense "S-shaped" sweeping path within the joint, with the crest touching the top of the joint and the trough touching the bottom. This ensures that the upper and lower walls of the narrow joint are fully covered by the grout, effectively avoiding the formation of crescent-shaped voids. At the same time, the coordinated control of the slow-retreating mechanism ensures that the grout coverage area between adjacent swinging cycles has a certain overlap rate, ensuring a continuous and complete filling path and guaranteeing the uniformity and stability of construction quality. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the connection structure between the discharge pipe and the mounting clamp of the present invention;

[0027] Figure 3 This is a schematic diagram of the connection structure between the L-shaped fixing plate and the mounting clip of the present invention;

[0028] Figure 4 This is a schematic diagram of the connection structure between the central shaft and the crossbar of the present invention;

[0029] Figure 5 This is a schematic diagram of the connection structure between the L-shaped bent column and the spherical protrusion of the present invention.

[0030] Figure 6 This is a schematic diagram of the connection structure between the rectangular frame and the second mounting block of the present invention.

[0031] Figure 7 This is a schematic diagram of the connection structure between the rectangular frame and the third mounting block of the present invention;

[0032] Figure 8 This is a schematic diagram of the connection structure between the force-guiding cylinder and the through-hole of the present invention;

[0033] Figure 9 This is a cross-sectional structural diagram of the fixed cylinder of the present invention.

[0034] The attached diagram lists the components represented by each number as follows:

[0035] In the diagram: 1. Base; 2. Slurry storage tank; 3. Handle; 4. Feed pipe; 5. Slurry pump; 6. Discharge pipe; 7. Grouting head; 8. Z-shaped frame; 9. Support plate; 10. Bracket; 11. Positioning block; 12. First motor; 13. Electric push rod; 14. Movable ring frame; 15. Central shaft; 16. Crossbar; 17. L-shaped fixing plate; 18. Mounting clamp; 19. L-shaped curved column; 20. Spherical protrusion; 21. Annular groove; 22. Rectangular frame; 23. First mounting block; 24. Second mounting block; 25. Second motor; 26. Swing arm; 27. Force guiding cylinder; 28. Third mounting block; 29. ​​Straight frame; 30. Through port; 31. Sector tooth; 32. Gear; 33. Drive shaft; 34. Connecting frame; 35. Fixing cylinder; 36. Partition plate; 37. Buffer column; 38. Spring. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0037] Example 1

[0038] Reference Figure 1-8 A sealing and grouting device for narrow gaps at the top of an exterior wall panel, comprising:

[0039] The machine base 1 has a slurry storage tank 2 fixed on its top.

[0040] The grouting mechanism is located between the machine base 1 and the grout storage tank 2, and is used to transport the grout from the storage tank 2 to the gap at the top of the outer wall panel;

[0041] The adjustment mechanism, located on the grouting mechanism, is used to adjust the trajectory of the grouting operation. Through the coordination of the grouting mechanism and the adjustment mechanism, this device enables the grouting head 7 to start grouting from the deepest part of the narrow gap and retreat at a uniform speed, so as to achieve the grout filling layer by layer from the inside to the outside. This fundamentally solves the quality defect of the existing technology of "the outside is filled solidly, but the inside is not filled solidly", and ensures the integrity and waterproof performance of the wall.

[0042] The grouting mechanism includes a feed pipe 4, a grout pump 5, a discharge pipe 6, and an injection head 7. The feed pipe 4 is fixed to one side of the grout storage tank 2. The grout pump 5 is fixed to the top of the base 1 and near the grout storage tank 2. The input end of the grout pump 5 is fixed to the feed pipe 4, and the output end of the grout pump 5 is fixed to the discharge pipe 6. The injection head 7 is fixed to one end of the discharge pipe 6, forming a closed constant pressure conveying path to ensure that the grout is continuously and evenly conveyed to the injection head 7, avoiding grout interruption or pressure fluctuations from affecting the filling density.

[0043] The adjustment mechanism includes an auxiliary component and a transmission component. A Z-shaped frame 8 is mounted below the grouting head 7, with a handle 3 fixed to one end of the Z-shaped frame 8. An auxiliary component is mounted above the Z-shaped frame 8, and a transmission component is mounted between the auxiliary component and the grouting head 7. The auxiliary component includes a support plate 9, a bracket 10, a positioning block 11, a first motor 12, an electric push rod 13, and a movable ring frame 14. The top of the Z-shaped frame 8 is equipped with a support plate 9, and brackets 10 are fixed to both sides of the top of the support plate 9. A positioning block 11 is fixed to the top of the two brackets 10, and the first motor 12 is fixed to the bottom of the positioning block 11. Electric push rods 13 are fixed to both ends of the top of the support plate 9, and a movable ring frame 14 is fixed to the output end of the two electric push rods 13. The movable ring frame 14 is slidably connected to the positioning block 11. The first motor 12 provides a rotational power source, and the electric push rod 13 provides an axial displacement power source. The two work together to drive the movable ring frame 14 to slide along the positioning block 11. This auxiliary component separates the power source from the actuator, making the attitude adjustment action smooth and controllable. It can independently adjust the pitch or azimuth angle, and can also achieve two-axis linkage compound adjustment, which greatly enriches the movement trajectory of the grouting head 7 and makes it easier to deal with complex construction scenarios where the wall surface is uneven or there are obstacles inside the narrow gap.

[0044] The transmission assembly includes a central shaft 15, a crossbar 16, an L-shaped fixing plate 17, a mounting clamp 18, an L-shaped bent column 19, a spherical protrusion 20, and an annular groove 21. The output end of the first motor 12 is fixed to the central shaft 15 through the positioning block 11. The crossbar 16 is fixed to the inner side of the central shaft 15. The two ends of the crossbar 16 are respectively fixed to the L-shaped fixing plate 17 and the L-shaped bent column 19. The spherical protrusion 20 is fixed to one end of the L-shaped bent column 19. The mounting clamp 18 is fixed to the top of the L-shaped fixing plate 17. The mounting clamp 18 is engaged with the discharge pipe 6. An annular groove 21 is opened on the side inside the movable ring frame 14. The inner side of the annular groove 21 is in sliding contact with the spherical protrusion 20. By utilizing the spatial sliding cooperation between the spherical protrusion 20 and the annular groove 21, the rotational torque of the central shaft 15 and the horizontal displacement of the movable ring frame 14 are converted into the multi-degree-of-freedom oscillating motion of the grouting head 7. The mounting clip 18 ensures that the discharge pipe 6 and the grouting head 7 are locked securely. The L-shaped curved column 19 and the L-shaped fixing plate 17 form a torque arm, which makes the attitude adjustment response sensitive and the angle accurate. The structure is compact and avoids the bulky problem caused by complex gearboxes.

[0045] A rectangular frame 22 is fixed to the bottom of the Z-shaped frame 8, and a swinging mechanism is assembled on the inner side of the rectangular frame 22. The swinging mechanism includes a first mounting block 23, a second mounting block 24, a second motor 25, a swing arm 26, a force guiding cylinder 27, and a mating assembly. The first mounting block 23 is fixed to one end of the rectangular frame 22, and the second mounting block 24 is fixed to the inner side of the rectangular frame 22. The second motor 25 is fixed to the bottom of the second mounting block 24, and the swing arm 26 is fixed to the output end of the second motor 25 through the second mounting block 24. The force guiding cylinder 27 is fixed to the top of the swing arm 26, and a mating assembly is assembled between the force guiding cylinder 27 and the rectangular frame 22. The swinging mechanism drives the swing arm 26 to rotate through the second motor 25, and the rotation is transmitted through the mating assembly to superimpose a high-frequency small-amplitude swing on the grouting head 7, so that the grout forms a continuous and dense "S-shaped" sweeping path in the crack, ensuring that the upper and lower walls of the narrow crack are fully covered by the grout, effectively avoiding crescent-shaped voids.

[0046] The cooperating components include a third mounting block 28, a straight frame 29, a through-hole 30, a sector tooth 31, a gear 32, and a drive shaft 33. The other end of the rectangular frame 22 is fixed with the third mounting block 28. The top of the third mounting block 28 is rotatably connected to the straight frame 29. The inside of the straight frame 29 has an through-hole 30, which is slidably connected to the force-guiding cylinder 27. One end of the top of the straight frame 29 is fixed with a sector tooth 31. One side of the sector tooth 31 is meshed with a gear 32. The inside of the gear 32 is fixed with a drive shaft 33. The drive shaft 33 is rotatably connected to the first mounting block 23. The top of the drive shaft 33 passes through the first mounting block 23 and is fixed to the support plate 9. The cooperating components convert the rotational motion of the swing arm 26 into the reciprocating swing of the straight frame 29. Then, through the meshing of the sector tooth 31 and the gear 32, the power is transmitted to the drive shaft 33 and the support plate 9, realizing the efficient steering and amplification of the swing power, and ensuring that the sweeping amplitude of the grouting head 7 meets the narrow slit height requirements.

[0047] Example 2

[0048] Further optimizations to Example 1, specifically, such as... Figure 9 As shown, a connecting frame 34 is fixed to one end of the top of the rectangular frame 22. A slow-retreating mechanism is assembled on one side of the connecting frame 34. The slow-retreating mechanism includes a fixed cylinder 35, a partition plate 36, a buffer column 37, and a spring 38. Fixed cylinders 35 are fixed to the four corners of the connecting frame 34. A spring 38 is fixed to one end of the inner side of each fixed cylinder 35. A partition plate 36 is fixed to one end of each spring 38. A buffer column 37 is fixed to the side of the partition plate 36 away from the spring 38. The buffer column 37 and the partition plate 36 are slidably connected to the fixed cylinder 35. The operator can control the retraction speed of the grouting head 7 in real time by finely adjusting the speed of releasing the grip of the handle 3 according to the width of the narrow gap, the fluidity of the grout and the actual situation on site. This eliminates the need to rely on a complex electrical control system, simplifies the equipment structure, and reduces the failure rate.

[0049] In summary:

[0050] This invention addresses the technical problem that, in existing technologies, the grout cannot fill the entire depth of the joint, making it difficult to guarantee compactness. Due to the large wall thickness, the narrow top joint extends along the wall thickness direction. When grouting only from the outside, the limited fluidity of the grout makes it difficult to ensure that the grout reaches and fills the inner area, resulting in a common quality defect of "compact filling on the outside, but incomplete filling on the inside." The invention employs the technical solutions described in the above embodiments. Furthermore, the implementation process of the above technical solutions is as follows:

[0051] Step 1: Equipment Placement and Initial Setup

[0052] The entire device is moved to the narrow gap at the top of the exterior wall panel to be constructed. At this time, the operator firmly grips handle 3 and presses inward, transmitting pressure to the connecting frame 34 through handle 3, which in turn compresses the spring 38 and buffer column 37 inside the fixed cylinder 35, causing the slow-retracting mechanism to fully retract and store energy. During this pressing process, the grouting head 7 is pushed along with the entire mechanism and probes into the outer opening of the narrow gap. The grout pump 5 is started, allowing the grout in the grout storage tank 2 to be transported to the grouting head 7 through the feed pipe 4, the grout pump 5, and the discharge pipe 6. After the grout discharge from the grouting head 7 stabilizes, the grout pump 5 is stopped.

[0053] Step 2: Insert the grouting head 7 deep into the innermost part of the narrow joint.

[0054] By controlling the extension of the electric push rod 13, the movable ring frame 14 is pushed to slide along the positioning block 11, thereby driving the Z-shaped frame 8 and the grouting head 7 fixed thereon to move deeper into the narrow gap until the grouting head 7 reaches the innermost side of the narrow gap, that is, the deepest part in the wall thickness direction. At this time, the installation clamp 18 and the discharge pipe 6 remain in a locked state.

[0055] Step 3: Start the grouting process

[0056] Restart the grout pump 5, and the grout begins to be injected into the innermost part of the narrow slot from the grouting head 7. At the same time, start the first motor 12, driving the central shaft 15 to rotate. The central shaft 15 drives the crossbar 16 to rotate, and the L-shaped fixing plates 17 and L-shaped curved columns 19 at both ends of the crossbar 16 move in tandem. Simultaneously, control the extension and retraction of the electric push rod 13, pushing the movable ring frame 14 to slide back and forth along the positioning block 11, thereby changing the spatial position of the annular groove 21.

[0057] Because the spherical protrusion 20 is embedded in and slides in contact with the annular groove 21, when the position of the annular groove 21 changes and the central axis 15 continues to rotate, the spherical protrusion 20 is forced to slide within the annular groove 21, generating a multi-dimensional deflection torque. This torque is transmitted to the mounting clamp 18 through the L-shaped curved column 19, the crossbar 16, and the L-shaped fixing plate 17. The mounting clamp 18 holds the discharge pipe 6, ultimately driving the grouting head 7 to adjust the spray pitch angle and the spray azimuth angle, so that the grout outlet of the grouting head 7 is precisely aligned with the top and bottom walls of the narrowest innermost part of the joint, setting the optimal impact incident angle.

[0058] Step 4: The swing mechanism enhances the sweeping effect.

[0059] While the grouting head 7 is being adjusted, the second motor 25 is started. The second motor 25 drives the swing arm 26 to rotate. The guide cylinder 27 at the top of the swing arm 26 slides in the opening 30 of the straight frame 29, pushing the straight frame 29 to swing back and forth around the third mounting block 28. The fan-shaped tooth 31 at the top of the straight frame 29 meshes with the gear 32. The gear 32 transmits the rotational motion to the support plate 9 through the transmission shaft 33, thereby causing the entire auxiliary component to swing additionally, making the sweeping trajectory of the grouting head 7 more dense and forming a continuous "S-shaped" path, with the crest touching the top of the joint and the trough touching the bottom of the joint, ensuring that the upper and lower walls of the narrow joint are fully covered with grout.

[0060] Step 5: The slow-reverse mechanism coordinates with the reverse speed to control the reverse speed.

[0061] During the continuous grouting process of the grouting head 7, the operator no longer presses down forcefully, but gradually releases the gripping force on the handle 3 at a slow speed according to the actual filling progress of the grout in the gap. At this time, the compressed spring 38 begins to elastically reset, pushing the partition plate 36 and the buffer column 37 to extend smoothly. Due to the damping medium inside the buffer column 37, the reset speed of the spring 38 is limited to a uniform, impact-free, slow movement. This reset movement, through the connecting frame 34 and the entire upper mechanism, synchronously drives the grouting head 7 to slowly and continuously retreat from the deepest part of the narrow gap to the outside. The operator can steplessly control the retreat speed in real time by finely adjusting the speed of releasing the gripping force, so that the grout coverage area between adjacent swing cycles maintains an ideal overlap rate, ensuring that the filling path is continuous and without omissions.

[0062] Step Six: Complete the grouting process

[0063] When the grouting head 7 retracts to the outer opening of the narrow joint, the grout pump 5 is turned off, the first motor 12 and the second motor 25 are stopped, and the electric push rod 13 is fully retracted. Remove the device and wait for the grout to solidify; this completes the sealing and grouting operation for the narrow joint.

[0064] With the above-mentioned settings, this application will certainly solve the above-mentioned technical problems, and at the same time achieve the following technical effects:

[0065] 1. Through the structural design of the grouting mechanism and the adjustment mechanism, the present invention enables the grouting head 7 of the device to start grouting from the deepest part of the narrow gap, and to retreat at a constant speed while grouting, so that the grout fills the gap layer by layer from the inside to the outside, fundamentally solving the quality defect of "the outside is filled tightly, but the inside is not filled tightly" in the prior art.

[0066] 2. Through the structural design of the swinging mechanism and the slow-retreating mechanism, this invention enables the device to swing and sweep to ensure full coverage of the upper and lower walls. This allows the grout to form a continuous and dense "S-shaped" sweeping path within the joint, with the crest touching the top of the joint and the trough touching the bottom. This ensures that the upper and lower walls of the narrow joint are fully covered by the grout, effectively avoiding the formation of crescent-shaped voids. At the same time, the coordinated control of the slow-retreating mechanism ensures that the grout coverage area between adjacent swinging cycles has a certain overlap rate, ensuring a continuous and complete filling path and guaranteeing the uniformity and stability of construction quality.

[0067] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0068] Obviously, the embodiments described above are merely some embodiments of the present invention, not all embodiments. The accompanying drawings show preferred embodiments of the present invention, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms; rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this invention.

Claims

1. A sealing and grouting device for narrow gaps at the top of an exterior wall panel, characterized in that, include: A base (1) is provided, and a slurry storage tank (2) is fixed to the top of the base (1). The grouting mechanism is located between the machine base (1) and the grout storage tank (2) and is used to transport the grout from the storage tank (2) to the gap at the top of the outer wall panel. An adjustment mechanism, disposed on the grouting mechanism, is used to adjust the trajectory of the grouting operation.

2. The sealing and grouting device for narrow gaps at the top of an exterior wall panel according to claim 1, characterized in that, The grouting mechanism includes a feed pipe (4), a grout pump (5), a discharge pipe (6), and a grouting head (7). The feed pipe (4) is fixed on one side of the grout storage tank (2). The grout pump (5) is fixed on the top of the machine base (1) and near the grout storage tank (2). The input end of the grout pump (5) is fixed to the feed pipe (4). The output end of the grout pump (5) is fixed to the discharge pipe (6). The grouting head (7) is fixed at one end of the discharge pipe (6).

3. The sealing and grouting device for narrow gaps at the top of an exterior wall panel according to claim 2, characterized in that, The adjustment mechanism includes an auxiliary component and a transmission component. A Z-shaped frame (8) is mounted below the grouting head (7). A handle (3) is fixed to one end of the Z-shaped frame (8). An auxiliary component is mounted above the Z-shaped frame (8). A transmission component is mounted between the auxiliary component and the grouting head (7).

4. The sealing and grouting device for narrow gaps at the top of an exterior wall panel according to claim 3, characterized in that, The auxiliary components include a support plate (9), a bracket (10), a positioning block (11), a first motor (12), an electric push rod (13), and a movable ring frame (14). The top of the Z-shaped frame (8) is equipped with a support plate (9). The two sides of the top of the support plate (9) are fixed with brackets (10). The top of the two brackets (10) is fixed with a positioning block (11). The bottom of the positioning block (11) is fixed with a first motor (12). The two ends of the top of the support plate (9) are fixed with electric push rods (13). The output ends of the two electric push rods (13) are fixed with a movable ring frame (14). The movable ring frame (14) is slidably connected to the positioning block (11).

5. A sealing and grouting device for narrow gaps at the top of an exterior wall panel according to claim 4, characterized in that, The transmission assembly includes a central shaft (15), a crossbar (16), an L-shaped fixing plate (17), a mounting clip (18), an L-shaped bent column (19), a spherical protrusion (20), and an annular groove (21). The output end of the first motor (12) is fixed to the central shaft (15) through the positioning block (11). The crossbar (16) is fixed to the inner side of the central shaft (15). The two ends of the crossbar (16) are respectively fixed to the L-shaped fixing plate (17) and the L-shaped bent column (19). The spherical protrusion (20) is fixed to one end of the L-shaped bent column (19). The mounting clip (18) is fixed to the top of the L-shaped fixing plate (17). The mounting clip (18) is engaged with the discharge pipe (6). An annular groove (21) is provided on the inner side of the movable ring frame (14). The inner side of the annular groove (21) is in sliding contact with the spherical protrusion (20).

6. A sealing and grouting device for narrow gaps at the top of an exterior wall panel according to claim 4, characterized in that, The bottom of the Z-shaped frame (8) is fixed with a rectangular frame (22), and the inner side of the rectangular frame (22) is equipped with a swinging mechanism.

7. A sealing and grouting device for narrow gaps at the top of an exterior wall panel according to claim 6, characterized in that, The swinging mechanism includes a first mounting block (23), a second mounting block (24), a second motor (25), a swing arm (26), a force-guiding cylinder (27), and a mating assembly. The first mounting block (23) is fixed to one end of the rectangular frame (22), the second mounting block (24) is fixed to the inner side of the rectangular frame (22), the second motor (25) is fixed to the bottom of the second mounting block (24), the output end of the second motor (25) passes through the second mounting block (24) and is fixed to the swing arm (26), the force-guiding cylinder (27) is fixed to the top of the swing arm (26), and a mating assembly is assembled between the force-guiding cylinder (27) and the rectangular frame (22).

8. A sealing and grouting device for narrow gaps at the top of an exterior wall panel according to claim 7, characterized in that, The mating components include a third mounting block (28), a straight frame (29), a through-hole (30), a sector tooth (31), a gear (32), and a drive shaft (33). The other end of the rectangular frame (22) is fixed with the third mounting block (28). The top of the third mounting block (28) is rotatably connected to the straight frame (29). The inside of the straight frame (29) is provided with a through-hole (30). The through-hole (30) is slidably connected to the force-guiding cylinder (27). One end of the top of the straight frame (29) is fixed with a sector tooth (31). One side of the sector tooth (31) is meshed with a gear (32). The inside of the gear (32) is fixed with a drive shaft (33). The drive shaft (33) is rotatably connected to the first mounting block (23). The top of the drive shaft (33) passes through the first mounting block (23) and is fixed to the support plate (9).

9. A sealing and grouting device for narrow gaps at the top of an exterior wall panel according to claim 8, characterized in that, A connecting frame (34) is fixed to one end of the top of the rectangular frame (22). A slow-retraction mechanism is assembled on one side of the connecting frame (34). The slow-retraction mechanism includes a fixed cylinder (35), a partition (36), a buffer column (37), and a spring (38). Fixed cylinders (35) are fixed to the four corners of the connecting frame (34). A spring (38) is fixed to one end of the inner side of the fixed cylinder (35). A partition (36) is fixed to one end of the spring (38). A buffer column (37) is fixed to the side of the partition (36) away from the spring (38). The buffer column (37) and the partition (36) are slidably connected to the fixed cylinder (35).

Images