A retractable plug

Abstract

The utility model discloses a telescopic plug, including wall vertical purlin still include self -tapping screw, sealant and telescopic rubber strip, the surface of wall vertical purlin is fixed with four side rebate sandwich panel through the symmetry of self -tapping screw, and four side rebate sandwich panel is filled with sealant and telescopic rubber strip outward in proper order at the joint of the plate body of wall vertical purlin, through setting up the joint plug of sandwich panel, this plug can be designed through the corrugated rubber part of telescopic rubber strip, can be stretched freely or compressed according to the actual width of the joint of sandwich panel, need not on -the -spot rubber strip plugging of cutting, when the size of joint changes, the elastic deformation ability of corrugated rubber part can adjust length self -adaptation, avoid the problem of repeated cutting of traditional hand cutting rubber strip because of size mismatch, simplify the cumbersome cutting procedure.

Description

Technical Field

[0001] This utility model relates to the field of wall sandwich panel docking technology, and in particular to a retractable plug. Background Technology

[0002] Wall sandwich panels are a type of composite board consisting of bimetallic panels and an insulating core material bonded between the two metal panels. As a common building cladding material, wall sandwich panels are widely used due to their good thermal insulation and aesthetic effects. To ensure the flatness of the horizontal wall sandwich panels and to consider the processing capacity of the factory, joints are set when the wall is too long, making waterproofing at this point particularly important.

[0003] Currently, installers typically use a combination of hand-cut rubber strips and glue to seal the joints of sandwich panels for waterproofing. However, this simple sealing method cannot accommodate joints of sandwich panels of various sizes, resulting in the need for tedious measurement and cutting of rubber strips during the installation of sandwich panels. To address this, we propose a retractable plug. Utility Model Content

[0004] The main objective of this invention is to provide a retractable end cap for sandwich panels. This end cap, with its corrugated rubber section designed for the retractable rubber strip, can be freely stretched or compressed according to the actual width of the sandwich panel joint, eliminating the need for on-site measurement and cutting of the rubber strip. When the joint size changes, the elastic deformation capacity of the corrugated rubber section can adaptively adjust the length, avoiding the repeated cutting problems caused by size mismatches in traditional hand-cut rubber strips. This simplifies the tedious measurement and cutting process, making it particularly suitable for the rapid installation of sandwich panels of different specifications. Furthermore, the sealant and the retractable rubber strip form a composite waterproof system. The sealant first fills the gap as a basic waterproof layer, blocking the path of water vapor penetration. The solid rubber strip is then squeezed into the sandwich panel gap and adheres to the sealant surface, forming a secondary sealing barrier through physical compression. In addition, the concave structure of the solid rubber strip increases the contact area with the sealant, allowing the two to be tightly bonded through both mechanical interlocking and adhesive force, preventing the sealing layer from cracking or falling off during long-term use. This effectively improves the waterproof durability of the joint and effectively solves the problems in the prior art.

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

[0006] A retractable plug includes a wall purlin, self-tapping screws, sealant, and a retractable rubber strip. The surface of the wall purlin is symmetrically fixed with a four-sided tongue-and-groove sandwich panel via self-tapping screws. The joints of the four-sided tongue-and-groove sandwich panel near the wall purlin are sequentially filled with sealant and a retractable rubber strip. The retractable rubber strip includes a solid rubber head, a hollow rubber strip, a corrugated rubber section, and a T-shaped plug. A hollow rubber strip is integrally formed behind the solid rubber head, and a corrugated rubber section is provided in the body of the hollow rubber strip. A T-shaped plug is inserted into the opening of the hollow rubber strip away from the solid rubber head.

[0007] Furthermore, the solid rubber strip is adhered to the surface of the sealant, and the strip is squeezed between the four tongue-and-groove sandwich panels.

[0008] By adopting the above technical solution, the solid rubber strip is adhered to the surface of the sealant and squeezed into the gap of the sandwich panel to form a double seal. The sealant fills the gap as a basic waterproofing, while the solid rubber strip adheres to the surface of the sealant and squeezes into the gap of the sandwich panel to form a double seal, reducing the risk of leakage.

[0009] Furthermore, the head of the solid rubber strip is recessed with a notch, and sealant is squeezed into the notch of the solid rubber strip.

[0010] By adopting the above technical solution, the notch structure increases the contact area between the sealant and the solid rubber head strip, allowing the sealant to be firmly bonded at the notch of the solid rubber head strip.

[0011] Furthermore, the hollow rubber strip has an inner buckle protruding inward at the opening, and a T-shaped plug is inserted into the opening of the inner buckle. The head of the T-shaped plug is integrally formed with a back protrusion insert, and the back of the back protrusion insert has a ring body that abuts against the inner buckle.

[0012] By adopting the above technical solution, after the T-shaped plug is embedded in the hollow rubber strip with a convex backing, the ring of the convex backing can abut against the inner buckle ring to prevent it from moving backward.

[0013] Furthermore, two sets of self-tapping screws are fixed between the purlin surface of the wall vertical purlin and the two sets of panels of the four-sided tongue and groove sandwich panel;

[0014] By adopting the above technical solution, the wall purlins can be fixed with two sets of four-sided tongue-and-groove sandwich panels using double sets of self-tapping screws.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This utility model provides a joint plug for sandwich panels. The plug, through the corrugated rubber part of the telescopic rubber strip, can be freely stretched or compressed according to the actual width of the joint of the sandwich panel. There is no need to measure and cut the rubber strip on site. When the joint size changes, the elastic deformation ability of the corrugated rubber part can adaptively adjust the length, avoiding the problem of repeated cutting caused by size mismatch in traditional hand-cut rubber strips. This simplifies the tedious measurement and cutting process and is especially suitable for the rapid installation of wall sandwich panels of different specifications.

[0017] Furthermore, the sealant and the expansion rubber strip form a composite waterproof system. The sealant first fills the gaps as a basic waterproof layer, blocking the path of water vapor penetration. The solid rubber strip is squeezed into the gaps of the sandwich panel and adheres to the sealant surface, forming a secondary sealing barrier through physical compression. In addition, the concave structure of the solid rubber strip increases the contact area with the sealant, allowing the two to be tightly bonded through the dual action of mechanical interlocking and adhesive force, preventing the sealing layer from cracking or falling off during long-term use, and effectively improving the waterproof durability of the joint. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a retractable plug according to the present invention.

[0019] Figure 2 This is a schematic diagram showing the T-shaped plug and hollow rubber strip of a retractable plug according to this utility model.

[0020] Figure 3 This is an exploded view of the telescopic rubber strip of a telescopic plug according to this utility model.

[0021] In the diagram: 1. Wall purlin; 2. Four-sided tongue and groove sandwich panel; 3. Self-tapping screw; 4. Sealant; 5. Expansion strip; 6. Solid rubber head strip; 7. Hollow rubber strip; 8. Corrugated rubber section; 9. Inner buckle ring; 10. T-shaped plug; 11. Back protrusion insert. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] like Figure 1-3As shown, a retractable plug includes a wall purlin 1, self-tapping screws 3, sealant 4, and a retractable rubber strip 5. The surface of the wall purlin 1 is symmetrically fixed with a four-sided tongue-and-groove sandwich panel 2 by the self-tapping screws 3. The joints of the four-sided tongue-and-groove sandwich panel 2 near the wall purlin 1 are sequentially filled with sealant 4 and retractable rubber strip 5. The retractable rubber strip 5 includes a solid rubber head 6, a hollow rubber strip 7, a corrugated rubber part 8, and a T-shaped plug 10. The hollow rubber strip 7 is integrally formed behind the solid rubber head 6, and the corrugated rubber part 8 is provided in the strip body of the hollow rubber strip 7. The T-shaped plug 10 is inserted into the opening of the hollow rubber strip 7 away from the solid rubber head 6.

[0024] The solid rubber strip 6 is adhered to the surface of the sealant 4, and the strip of the solid rubber strip 6 is squeezed between the four tongue-and-groove sandwich panels 2.

[0025] By adopting the above technical solution, the solid rubber strip is adhered to the surface of the sealant and squeezed into the gap of the sandwich panel to form a double seal. The sealant 4 fills the gap as a basic waterproofing, while the solid rubber strip 6 is adhered to the surface of the sealant and squeezed into the gap of the sandwich panel to form a double seal, reducing the risk of leakage.

[0026] The head of the solid rubber strip 6 is recessed with a notch, and sealant 4 is squeezed into the notch of the solid rubber strip 6.

[0027] By adopting the above technical solution, the notch structure increases the contact area between the sealant 4 and the solid rubber head strip 6, so that the sealant 4 can be firmly bonded at the notch of the solid rubber head strip 6.

[0028] Among them, the hollow rubber strip 7 has an inner buckle ring 9 protruding inward at the opening of the strip, and a T-shaped plug 10 is inserted into the opening of the inner buckle ring 9. The head of the T-shaped plug 10 is integrally formed with a back protrusion insert 11, and the back of the back protrusion insert 11 has a ring body that abuts against the inner buckle ring 9.

[0029] By adopting the above technical solution, after the T-shaped plug 10 is embedded in the hollow rubber strip 7 with the back convex insert 11, the ring body of the back convex insert 11 can abut against the inner buckle ring 9 to prevent it from moving backward.

[0030] Among them, two sets of self-tapping screws 3 are fixed between the purlin surface of the wall purlin 1 and the two sets of panels of the four-sided tongue and groove sandwich panel 2.

[0031] By adopting the above technical solution, the wall purlin 1 can fix two sets of four-sided tongue and groove sandwich panels 2 with the help of double sets of self-tapping screws 3.

[0032] It should be noted that this utility model is a retractable plug. A retractable rubber strip 5, along with sealant 4, is used to seal the joints of the four-sided tongue-and-groove sandwich panel 2. When the four-sided tongue-and-groove sandwich panel 2 needs to be installed, the wall purlin 1 can be fixed to the wall horizontal purlin by welding or riveting. Then, the four-sided tongue-and-groove sandwich panel 2 is fixed to the wall purlin 1 with self-tapping screws 3. First, sealant 4 is squeezed between the four-sided tongue-and-groove sandwich panel 2 and the wall purlin 1. At the gap, the solid rubber head 6 of the telescopic rubber strip 5 is then inserted into the gap and bonded to the sealant 4. Based on the remaining gap length, the hollow rubber strip 7 is pulled according to the length required by visual estimation, so that the corrugated rubber part 8 is stretched. After the hollow rubber strip 7 is pulled to the gap position, glue can be injected into the hollow rubber strip 7 to fill it, and a T-shaped plug 10 is inserted into the hollow rubber strip 7 and fastened by the inner buckle 9. At this time, the joint of the four-sided tongue and groove sandwich panel 2 is waterproofed and sealed.

[0033] It should be noted that this utility model is a retractable plug. All components in this utility model are known to those skilled in the art, and their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A retractable plug, comprising a wall purlin (1), characterized in that: It also includes self-tapping screws (3), sealant (4) and telescopic rubber strips (5). The surface of the wall purlin (1) is symmetrically fixed with four tongue-and-groove sandwich panels (2) by self-tapping screws (3). The four tongue-and-groove sandwich panels (2) are filled with sealant (4) and telescopic rubber strips (5) in sequence from the joint of the panel body near the wall purlin (1). The telescopic rubber strip (5) includes a solid rubber head strip (6), a hollow rubber strip (7), a corrugated rubber part (8) and a T-shaped plug (10). The hollow rubber strip (7) is integrally formed behind the solid rubber head strip (6). The corrugated rubber part (8) is provided at the strip body of the hollow rubber strip (7). The T-shaped plug (10) is inserted in the strip opening of the hollow rubber strip (7) away from the solid rubber head strip (6).

2. The retractable plug according to claim 1, characterized in that: The solid rubber strip (6) is adhered to the surface of the sealant (4), and the strip of the solid rubber strip (6) is squeezed between the four tongue-and-groove sandwich panels (2).

3. The retractable plug according to claim 1, characterized in that: The head of the solid rubber strip (6) is recessed with a notch, and sealant (4) is squeezed into the notch of the solid rubber strip (6).

4. A retractable plug according to claim 1, characterized in that: The hollow rubber strip (7) has an inner buckle (9) protruding inward at the opening, and a T-shaped plug (10) is inserted into the opening of the inner buckle (9). The head of the T-shaped plug (10) is integrally formed with a back protrusion insert (11), and the back of the back protrusion insert (11) has a ring body that abuts against the inner buckle (9).

5. A retractable plug according to claim 1, characterized in that: Two sets of self-tapping screws (3) are fixed between the purlin surface of the wall purlin (1) and the two sets of panels of the four-sided tongue-and-groove sandwich panel (2).

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