Building wall splicing gap sealing device

Abstract

The utility model provides a building wall body splicing gap sealing device, which belongs to the technical field of building wall bodies, and comprises a main sealing plate and an auxiliary sealing plate, the main sealing plate and the auxiliary sealing plate are matched with each other to form a sealing unit, one side of the sealing unit is provided with a splicing sealing structure, and the splicing sealing structure is arranged on the other side of the sealing unit. The splicing sealing structure comprises two adjusting lead screws, the two adjusting lead screws are symmetrically arranged on the main sealing plate, locking devices are arranged between the two adjusting lead screws and the main sealing plate, trapezoidal grooves are symmetrically formed in one side of the main sealing plate, and trapezoidal sliding blocks are in threaded connection with the outer surfaces of the adjusting lead screws. The size of the outer surface of the adjusting lead screw and the size of the outer surface of the trapezoidal sliding block are matched with the size of the inner wall of the trapezoidal groove, one side of the auxiliary sealing plate is fixedly connected with an elastic sealing rubber strip, the elastic sealing rubber strip is in a dovetail shape, a metal wire is arranged in the elastic sealing rubber strip, and the defects that a traditional sealing device is poor in sealing performance and insufficient in durability are overcome.

Description

TECHNICAL FIELD

[0001] The utility model belongs to building wall technology field, more particularly, relate to a building wall splicing gap sealing device. BACKGROUND

[0002] In modern construction engineering, the sealing of wall splicing gap is the key link to ensure the overall performance of the building. With the continuous development of building technology and the increasing demand of people for building quality, the importance of building wall splicing gap sealing device is increasingly prominent. Due to the limitation of material size, construction technology and building structure design and other factors, building wall will inevitably produce splicing gap in the construction process. If these gaps cannot be effectively sealed, a series of problems will be caused.

[0003] The utility model discloses a prefabricated thermal insulation wallboard, the utility model discloses a thermal insulation wallboard body, the thermal insulation wallboard body one side is provided with splicing device, the splicing device includes two threaded rods, the utility model discloses a splicing device is set up, when using thermal insulation wallboard body to carry out the thermal insulation treatment to building wall, first, the first thermal insulation wallboard body is adhered on building wall through cement mortar, then two threaded rods on the second thermal insulation wallboard body are aligned with two T-shaped grooves on the last thermal insulation wallboard body and are clamped into, the second thermal insulation wallboard body is installed on building wall by means of cement mortar, and the screw hole block is rotated on the threaded rod to a certain distance, so that one side is abutted on the inner wall one side of T-shaped groove and is extruded.

[0004] Traditional building wall splicing gap sealing device has many drawbacks. Common sealing methods include using simple sealing strips or sealant for filling. However, traditional rubber sealing strips are prone to aging, deformation and cracking during long-term use, resulting in reduced sealing performance. Especially in outdoor environment, affected by ultraviolet rays, temperature changes, rain and wind erosion and other factors, the service life of rubber sealing strip is relatively short, and it often needs to be replaced frequently, increasing the maintenance cost and workload. Moreover, the sealing effect of traditional sealing strip is limited, and it is difficult to achieve complete and effective sealing for some small gaps or irregular gaps caused by wall deformation, and there is still a certain leakage risk. UTILITARY MODEL CONTENTS

[0005] Therefore, the building wall splicing gap sealing device provided by the utility model solves the drawbacks of poor sealing performance and insufficient durability of traditional sealing devices.

[0006] The utility model is realized as follows:

[0007] This utility model provides a sealing device for splicing gaps in building walls, including a main sealing plate and a secondary sealing plate. The main sealing plate and the secondary sealing plate cooperate to form a sealing unit. A splicing sealing structure is provided on one side of the sealing unit. The splicing sealing structure includes two adjusting screws. The two adjusting screws are symmetrically arranged on the main sealing plate. A locking device is provided between the two adjusting screws and the main sealing plate. A trapezoidal groove is symmetrically opened on one side of the main sealing plate. A trapezoidal slider is threaded to the outer surface of the adjusting screw. The size of the outer surface of the adjusting screw and the trapezoidal slider is adapted to the size of the inner wall of the trapezoidal groove.

[0008] The main sealing plate and the secondary sealing plate are joined together at the wall joint. The main sealing plate features an innovative splicing sealing structure on one side, while the secondary sealing plate is tightly fitted to the main sealing plate via a dovetail-shaped elastic sealing strip fixed to one side. During installation, the main sealing plate is first fixed to one side of the wall. Then, the secondary sealing plate is moved along the wall joint, allowing the elastic sealing strip to insert into the gap between the main sealing plate and the wall. This strip then presses against the flexible sealing gasket on the main sealing plate, forming a double seal. The mating edges of the main and secondary sealing plates are specially treated with a slope and chamfer to better guide the insertion of the elastic sealing strip during installation, ensuring a tight fit and effectively preventing gas, liquid, and dust from seeping into the joint.

[0009] Based on the above technical solution, the sealing device for splicing gaps in building walls of this utility model can be further improved as follows:

[0010] An elastic sealing strip is fixedly connected to one side of the sub-sealing plate. The elastic sealing strip is dovetail-shaped and contains metal wires. The elastic sealing strip is fixedly connected along the entire length of one side edge of the sub-sealing plate.

[0011] Metal wires are evenly distributed along the length of the elastic sealing strip inside the strip. The two ends of the wires are fixed at the beginning and end of the strip to ensure stable positioning. During production, a special molding process encases the metal wires within the rubber material of the elastic sealing strip, making them tightly bonded to the rubber. This design allows the metal wires to provide additional support and tensile strength when the elastic sealing strip is compressed, preventing excessive deformation or extrusion into gaps. This ensures that the strip maintains good sealing performance under different pressure and temperature conditions, effectively filling wall joints and preventing the intrusion of external substances.

[0012] Furthermore, the locking device includes a locking seat, a circular groove is provided on one side of the main sealing plate, a plurality of locking grooves are evenly provided on the inner wall of the circular groove, one side of the locking seat is fixedly connected to one end of the two adjusting screws, the outer surface of the locking seat is spherical and matches the inner wall of the circular groove, a plurality of locking beads are evenly distributed on the outer surface of the locking seat, and the outer surface size of the locking beads matches the inner wall size of the locking groove.

[0013] The quick-locking device features a spherical locking seat with a locking bead, magnetic block, and magnetic plate. The spherical locking seat automatically centers itself for easy installation. The engagement of the locking bead with the locking groove, along with the magnetic attraction, ensures a tighter and more secure lock, allowing for rapid installation and fixation of the sealing device. Furthermore, it is less prone to loosening under impact. Simultaneously, the internal elastic return mechanism (compression spring) facilitates disassembly, reducing disassembly time and labor intensity.

[0014] Furthermore, a magnetic block is connected to one side of the locking bead, and a magnetic sheet is provided at the corresponding position at the bottom of the locking groove, and the magnetic block and the magnetic sheet attract each other.

[0015] Furthermore, the locking seat is provided with an elastic reset device, which includes a plurality of compression springs distributed around the central axis of the locking seat, one end of which is connected to the locking ball.

[0016] When the sealing device needs to be disassembled, the compression spring can automatically push the locking ball out of the locking groove, which makes it convenient for operators to operate, reduces disassembly time and labor intensity, improves work efficiency, and at the same time ensures the service life of the locking ball and locking groove, reducing maintenance costs.

[0017] Furthermore, the main sealing plate and the secondary sealing plate are in a parallel and opposite position at the wall splicing gap.

[0018] The main function of the main sealing plate is to support the innovative splicing sealing structure. The sealing state is adjusted by regulating the screw and trapezoidal slider. The secondary sealing plate mainly relies on the elastic sealing strip to work in conjunction with the main sealing plate. Both plates fit tightly together in the direction perpendicular to the wall plane. In the direction parallel to the wall plane, the sealing components on the main sealing plate can be finely adjusted by regulating the screw according to the width of the wall splice gap. This ensures that the secondary sealing plate always maintains a good fit with the main sealing plate, guaranteeing effective sealing coverage of the entire splice gap. This adapts to wall splice gaps of different widths, improving the versatility and adaptability of the sealing device.

[0019] The flexible sealing gasket on one side of the main sealing plate and the dovetail-shaped elastic sealing strip on the other side of the secondary sealing plate work together in a front-to-back overlapping position. When the secondary sealing plate approaches the main sealing plate, the dovetail-shaped elastic sealing strip inserts into the gap between the main sealing plate and the wall, tightly pressing against the flexible sealing gasket of the main sealing plate. This overlapping, pressing connection method allows the sealing strip and gasket to fully fill the wall joint gaps, forming a sealing barrier.

[0020] Furthermore, an anti-slip cap is fixedly connected to one end of the adjusting screw. The anti-slip cap is hemispherical and has anti-slip protrusions on its outer surface.

[0021] Furthermore, the outer surface of the trapezoidal slider is provided with a multi-layer coating, which consists of a primer layer, a ceramic layer, and a fluorocarbon layer from the inside out.

[0022] The movement of the trapezoidal slider is primarily for adjusting the position of the flexible sealing gasket, thereby effectively sealing the gaps in the wall joints. Furthermore, the mating structure between the trapezoidal slider and the trapezoidal groove makes it more stable during movement, allowing for precise control of the sealing gasket's position and ensuring a sealing effect.

[0023] The multi-layered composite coating on the outer surface of the trapezoidal slider consists of the following layers from the inside out:

[0024] Rust-preventive primer layer: Epoxy zinc-rich primer is used. This primer contains a large amount of zinc powder, which can form a dense protective film on the metal surface. It protects the metal substrate of the trapezoidal slider from corrosion by means of sacrificial anode, and has good rust prevention performance and adhesion, providing basic rust prevention protection for subsequent coatings.

[0025] Ceramic wear-resistant layer: The main component is alumina ceramic particles. Through a special spraying process, the ceramic particles are evenly attached to the anti-rust primer layer to form a hard and wear-resistant surface coating.

[0026] Fluorocarbon waterproof layer: Using fluorocarbon resin as the main film-forming material, the extremely low surface energy of fluorocarbon resin gives the coating excellent waterproof, stain-resistant, and weather-resistant properties. The fluorocarbon waterproof layer effectively prevents moisture, dust, and other corrosive substances from adhering to the surface of the trapezoidal slider, further improving its corrosion resistance. At the same time, it maintains the smoothness of the coating surface, reduces frictional resistance, and makes the sliding of the trapezoidal slider within the trapezoidal groove smoother.

[0027] Furthermore, the trapezoidal slider is provided with a central hole, which is used to connect the adjusting screw.

[0028] The symmetrical trapezoidal grooves on the main sealing plate correspond one-to-one with the trapezoidal sliders of the adjusting screw. The slope and dimensions of the trapezoidal grooves are precisely matched with the trapezoidal sliders, allowing the sliders to slide smoothly within the grooves. During sliding, the sliders are constrained by the inner wall of the grooves, preventing displacement or rotation. The adjusting screw passes through the central hole of the trapezoidal slider. By rotating the adjusting screw, the trapezoidal slider can be moved along the length of the groove. During installation, depending on the actual condition of the wall gaps, the operator can rotate the adjusting screw to move the trapezoidal slider closer to or further away from the wall gaps, achieving precise adjustment of the sealing pressure and sealing effect. This ensures that the sealing gasket fits tightly against the wall gap surface, achieving optimal sealing.

[0029] Furthermore, a flexible sealing gasket is provided on the side of the trapezoidal slider near the wall splicing gap. The flexible sealing gasket is made of polyurethane and has a wavy texture on its surface.

[0030] After installation, as the adjusting screw moves the trapezoidal slider within the trapezoidal groove, the flexible sealing gasket moves along with the slider, maintaining constant contact with the wall joint surface. The flexible sealing gasket is tightly connected to the trapezoidal slider using strong adhesive or a special fixing structure, ensuring it will not shift or detach during operation. Its positioning allows the sealing gasket to accurately conform to the shape and size variations of the wall joint under the drive of the trapezoidal slider. Utilizing its own elasticity and the properties of polyurethane, it effectively fills the minute unevenness in the joint, forming a reliable sealing barrier to prevent gases, liquids, and dust from entering the building through the joint, ensuring the building's airtightness and energy efficiency.

[0031] Compared with existing technologies, the beneficial effects of the sealing device for splicing gaps in building walls provided by this utility model are:

[0032] The innovative design of the main and secondary sealing plates, along with the unique splicing sealing structure, significantly improves the sealing effect. The trapezoidal groove on the main sealing plate, in conjunction with the trapezoidal slider, allows the sealing device to be precisely adjusted according to the actual conditions of the wall gaps. The flexible sealing gasket on the trapezoidal slider is made of polyurethane with a wavy texture. This design allows it to better conform to the minute unevenness of the wall gap surface, effectively filling the gaps and preventing the penetration of gas, liquid, and dust. Compared to traditional rubber sealing strips, the polyurethane flexible sealing gasket has higher elasticity and wear resistance, maintaining good sealing performance over long-term use. Even when the wall undergoes some deformation, its elasticity adapts to changes, ensuring that the sealing effect remains unaffected.

[0033] The dovetail-shaped elastic sealing strip on the secondary sealing plate contains internal metal reinforcing wires, enhancing its strength and toughness. The dovetail design allows it to fit tightly into the gap between the main sealing plate and the wall, forming a double seal with the flexible sealing gasket, further improving sealing reliability. The metal reinforcing wires prevent the sealing strip from deforming or breaking under pressure or tension, ensuring stable sealing performance under various complex environmental conditions, such as temperature changes and wind effects, effectively preventing external substances from entering the wall.

[0034] The multi-layer composite coating on the outer surface of the trapezoidal slider significantly extends the service life of the device. The anti-rust primer layer (epoxy zinc-rich primer) effectively prevents the trapezoidal slider from rusting, protecting the metal substrate from corrosion; the ceramic wear-resistant layer (alumina ceramic particles) greatly improves the slider's wear resistance, reduces wear during repeated sliding within the trapezoidal groove, and ensures its dimensional accuracy and operational stability; the fluorocarbon waterproof layer (fluorocarbon resin) has excellent waterproof, anti-fouling, and weather-resistant properties, preventing moisture, dust, and other corrosive substances from eroding the trapezoidal slider, maintaining the smoothness of the coating surface, reducing frictional resistance, making the sliding of the trapezoidal slider smoother, and further enhancing the corrosion resistance of the entire sealing device, enabling it to work stably for a long time in harsh outdoor environments.

[0035] The quick-locking device design simplifies and expedites the installation and removal of the sealing device. The spherical design of the locking seat automatically centers itself when inserted into the circular groove of the main sealing plate, facilitating installation. Multiple locking beads engage with the locking grooves on the inner wall of the circular groove, and the attraction between the magnetic block on one side of the locking beads and the magnetic plate at the bottom of the locking groove ensures a tight and secure lock, enabling rapid installation and fixation of the sealing device and significantly improving construction efficiency. Furthermore, when disassembly is required, the elastic reset device (compression spring) inside the locking seat automatically pushes the locking beads out of the locking groove. Operators can easily disassemble the device by applying appropriate external force to overcome the magnetic attraction, making disassembly quick and convenient without damaging the device. This promotes reusability and reduces construction costs and resource waste. Attached Figure Description

[0036] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 An example diagram of a sealing device for joint gaps in building walls;

[0038] Figure 2 An example diagram of a locking device for sealing gaps in building wall joints;

[0039] Figure 3 for Figure 2 Enlarged view of section A in the middle;

[0040] Figure 4 An example diagram of the splicing and sealing structure of a sealing device for splicing joints in building walls;

[0041] The attached diagram lists the components represented by each number as follows:

[0042] 10. Main sealing plate; 20. Secondary sealing plate; 30. Spliced ​​sealing structure; 31. Adjusting screw; 32. Trapezoidal slider; 40. Locking device; 41. Locking seat; 42. Locking groove; 43. Locking bead. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0044] like Figures 1-4 The image shows a first embodiment of a sealing device for splicing gaps in building walls provided by this utility model. In this embodiment, it includes a main sealing plate 10 and a secondary sealing plate 20. The main sealing plate 10 and the secondary sealing plate 20 cooperate to form a sealing unit. A splicing sealing structure 30 is provided on one side of the sealing unit. The splicing sealing structure 30 includes two adjusting screws 31. The two adjusting screws 31 are symmetrically arranged on the main sealing plate 10. A locking device 40 is provided between the two adjusting screws 31 and the main sealing plate 10. A trapezoidal groove is symmetrically opened on one side of the main sealing plate 10. A trapezoidal slider 32 is threadedly connected to the outer surface of the adjusting screw 31. The size of the outer surface of the adjusting screw 31 and the trapezoidal slider 32 is adapted to the size of the inner wall of the trapezoidal groove.

[0045] Using the central axis of the main sealing plate (which is determined by the installation direction of the sealing device in the wall joint, for example, the vertical centerline for vertical installation and the horizontal centerline for horizontal installation) as a reference, two adjusting screws are located on both sides of the axis. They cooperate with the trapezoidal grooves symmetrically opened on one side of the main sealing plate, that is, each adjusting screw passes through the central hole of a corresponding trapezoidal slider, and its axial direction is consistent with the length direction of the trapezoidal groove.

[0046] The outer diameter of the adjusting screw and the outer contour dimensions of the trapezoidal slider are designed to closely match the inner diameter and inner wall shape of the trapezoidal groove. Specifically, the outer diameter of the adjusting screw is slightly smaller than the inner diameter of the trapezoidal groove, allowing the adjusting screw to rotate freely within the groove without excessive clearance, ensuring the stability and accuracy of the adjusting screw during operation. The outer surface shape of the trapezoidal slider perfectly matches the inner wall shape of the trapezoidal groove, with dimensional tolerances controlled within a very small range. This ensures that the trapezoidal slider can be tightly embedded in the groove, maintaining good contact with the groove wall during sliding, reducing wobbling and friction while ensuring sealing performance. This precise fit makes the entire spliced ​​sealing structure more stable and reliable during installation and use, effectively transmitting adjustment force, achieving precise control of the sealing state, and preventing external dust, moisture, and other impurities from entering the trapezoidal groove and affecting the normal operation of the adjusting screw and trapezoidal slider.

[0047] In the above technical solution, an elastic sealing strip is fixedly connected to one side of the sub-sealing plate 20. The elastic sealing strip is dovetail-shaped and contains metal wires. The elastic sealing strip is fixedly connected along the entire length of one side edge of the sub-sealing plate 20.

[0048] Furthermore, in the above technical solution, the locking device 40 includes a locking seat 41. A circular groove is provided on one side of the main sealing plate 10. A plurality of locking grooves 42 are evenly provided on the inner wall of the circular groove. One side of the locking seat 41 is fixedly connected to one end of two adjusting screws 31. The outer surface of the locking seat 41 is spherical and matches the inner wall of the circular groove. A plurality of locking beads 43 are evenly distributed on the outer surface of the locking seat 41. The outer surface size of the locking beads 43 matches the inner wall size of the locking grooves 42.

[0049] Furthermore, in the above technical solution, a magnetic block is connected to one side of the locking bead 43, and a magnetic sheet is provided at the corresponding position at the bottom of the locking groove 42, and the magnetic block and the magnetic sheet attract each other.

[0050] Furthermore, in the above technical solution, the locking seat 41 is provided with an elastic reset device, which includes a plurality of compression springs distributed around the central axis of the locking seat 41, and one end of the compression springs is connected to the locking bead 43.

[0051] Furthermore, in the above technical solution, the main sealing plate 10 and the secondary sealing plate 20 are in a parallel and relative positional relationship at the wall splicing gap.

[0052] Furthermore, in the above technical solution, one end of the adjusting screw 31 is fixedly connected to an anti-disengagement cap, which is hemispherical and has anti-slip protrusions on its outer surface.

[0053] Furthermore, in the above technical solution, the outer surface of the trapezoidal slider 32 is provided with a multi-layer coating, which consists of a primer layer, a ceramic layer, and a fluorocarbon layer from the inside out.

[0054] Furthermore, in the above technical solution, the trapezoidal slider 32 is provided with a central hole, which is used to connect the adjusting screw 31.

[0055] Furthermore, in the above technical solution, a flexible sealing gasket is provided on the side surface of the trapezoidal slider 32 near the wall splicing gap. The flexible sealing gasket is made of polyurethane and has a wavy texture on its surface.

[0056] Specifically, the principle of this utility model is as follows:

[0057] The main and secondary sealing plates achieve effective sealing of wall joints through an innovative splicing sealing structure. During installation, the main sealing plate is first fixed to one side of the wall. The trapezoidal groove on the main sealing plate engages with the trapezoidal slider of the adjusting screw. The adjusting screw passes through the central hole of the trapezoidal slider. By rotating the adjusting screw, the trapezoidal slider moves along the length of the groove. A flexible sealing gasket is fixedly connected to one side of the trapezoidal slider. When the adjusting screw rotates, the trapezoidal slider moves the flexible sealing gasket closer to or further away from the wall joint, thereby adjusting the pressure of the sealing gasket on the joint and ensuring a tight fit against the wall joint surface. The polyurethane material of the flexible sealing gasket has high elasticity and good flexibility. Its wavy texture better adapts to the minor unevenness of the wall surface, effectively filling the gaps and forming the first line of defense against the penetration of gases, liquids, and dust.

[0058] One side of the secondary sealing plate is fixedly connected to a dovetail-shaped elastic sealing strip with internal metal reinforcing wires. During installation, the secondary sealing plate is moved along the wall joint, allowing the elastic sealing strip to insert into the gap between the main sealing plate and the wall, where it presses against the flexible sealing gasket on the main sealing plate. The dovetail design allows the strip to better embed itself into the gap, increasing the sealing contact area, while the metal reinforcing wires enhance the strip's strength and toughness, making it less prone to deformation or being squeezed out of the gap under pressure. Together with the flexible sealing gasket, it forms a tight double-seal structure, further improving the sealing effect and ensuring a reliable seal for the wall joint.

[0059] The adjusting screw, as an adjusting component of the sealing device, operates on the principle of threaded transmission. When the operator rotates the adjusting screw, the rotational motion of the screw is converted into the linear motion of the trapezoidal slider due to the threaded connection between the screw and the trapezoidal slider. By controlling the rotation direction and number of turns of the adjusting screw, the position of the trapezoidal slider within the trapezoidal groove can be precisely controlled, thereby adjusting the pressure between the flexible sealing gasket and the wall gap. This adjustment method is simple and precise, adaptable to wall joint gaps of different widths and shapes, ensuring that the sealing device achieves optimal sealing under various working conditions. Simultaneously, the high-precision machining of the adjusting screw and its excellent fit with the trapezoidal slider ensure the smoothness and reliability of the adjustment process, reducing the risk of seal failure due to improper adjustment.

[0060] The quick-locking device employs a spherical locking seat and a circular groove, along with a connection structure between the locking beads and the locking groove, enabling rapid installation and fixation of the sealing device. During installation, the locking seat is inserted into the circular groove of the main sealing plate. Due to the spherical design of the locking seat, it automatically finds its center position during insertion, facilitating operator operation. Multiple locking beads, evenly distributed on the outer surface of the locking seat, are compressed by the inner wall of the groove and retract into the locking seat when inserted into the circular groove. When the locking beads move to the position corresponding to the locking groove, they are engaged in the locking groove by a spring, achieving initial fixation between the locking seat and the main sealing plate. Simultaneously, the attraction between the magnetic block on one side of the locking beads and the magnetic piece at the bottom of the locking groove further enhances the stability of the lock, ensuring that the sealing device will not loosen due to external forces during use.

Claims

1. A sealing device for joint gaps in building walls, characterized in that: The system includes a main sealing plate (10) and a secondary sealing plate (20), which cooperate to form a sealing unit. A splicing sealing structure (30) is provided on one side of the sealing unit. The splicing sealing structure (30) includes two adjusting screws (31), which are symmetrically arranged on the main sealing plate (10). A locking device (40) is provided between the two adjusting screws (31) and the main sealing plate (10). A trapezoidal groove is symmetrically opened on one side of the main sealing plate (10). A trapezoidal slider (32) is threaded onto the outer surface of the adjusting screw (31). The size of the outer surface of the adjusting screw (31) and the trapezoidal slider (32) is adapted to the size of the inner wall of the trapezoidal groove.

2. The sealing device for splicing gaps in building walls according to claim 1, characterized in that, An elastic sealing strip is fixedly connected to one side of the sub-sealing plate (20). The elastic sealing strip is dovetail-shaped and contains metal wires. The elastic sealing strip is fixedly connected along the entire length of one side edge of the sub-sealing plate (20).

3. A sealing device for joint gaps in building walls according to claim 2, characterized in that, The locking device (40) includes a locking seat (41). A circular groove is provided on one side of the main sealing plate (10). A plurality of locking grooves (42) are evenly provided on the inner wall of the circular groove. One side of the locking seat (41) is fixedly connected to one end of the two adjusting screws (31). The outer surface of the locking seat (41) is spherical and matches the inner wall of the circular groove. A plurality of locking beads (43) are evenly distributed on the outer surface of the locking seat (41). The outer surface size of the locking beads (43) matches the inner wall size of the locking groove (42).

4. A sealing device for joint gaps in building walls according to claim 3, characterized in that, A magnetic block is connected to one side of the locking bead (43), and a magnetic sheet is provided at the bottom of the locking groove (42) at the corresponding position. The magnetic block and the magnetic sheet attract each other.

5. A sealing device for joint gaps in building walls according to claim 4, characterized in that, The locking seat (41) is provided with an elastic reset device inside. The elastic reset device includes a plurality of compression springs distributed around the central axis of the locking seat (41). One end of the compression spring is connected to the locking bead (43).

6. A sealing device for joint gaps in building walls according to claim 5, characterized in that, The main sealing plate (10) and the secondary sealing plate (20) are in a parallel and opposite position at the wall splicing gap.

7. A sealing device for joint gaps in building walls according to claim 6, characterized in that, One end of the adjusting screw (31) is fixedly connected to an anti-slip cap, which is hemispherical and has anti-slip protrusions on its outer surface.

8. A sealing device for splicing joints in building walls according to claim 7, characterized in that, The outer surface of the trapezoidal slider (32) is provided with a multi-layer coating, which consists of a primer layer, a ceramic layer and a fluorocarbon layer from the inside to the outside.

9. A sealing device for joint gaps in building walls according to claim 8, characterized in that, The trapezoidal slider (32) is provided with a central hole, which is used to connect the adjusting screw (31).

10. A sealing device for joint gaps in building walls according to claim 9, characterized in that, The trapezoidal slider (32) has a flexible sealing gasket on the side of its surface near the wall splicing gap. The flexible sealing gasket is made of polyurethane and has a wavy texture on its surface.

Images