Embedded clamping piece type novel prefabricated wall corner protection device

Abstract

The utility model belongs to the technical field of wall angle beads, and provides a novel pre-embedded clamping piece type prefabricated wall angle bead device which comprises a glass fiber reinforced plastic angle bead strip, a glass fiber grid bonding belt, a pre-embedded clamping piece type plastic expansion pipe and a self-bottom-expanding groove type lock key bolt, the glass fiber reinforced plastic angle bead strip is attached to a wall corner, and the glass fiber grid bonding belt is attached to the bottom of the pre-embedded clamping piece type plastic expansion pipe and the self-bottom-expanding groove type lock key bolt. The glass fiber grid bonding belt is attached to the outer side face of the glass fiber reinforced plastic corner bead, the number of the embedded clamping piece type plastic expansion pipes is two, the two rows of the embedded clamping piece type plastic expansion pipes are embedded in the portions, on the two sides of a wall corner, of a wall body respectively, and the self-bottom-expanding groove type locking key bolts can be inserted into the embedded clamping piece type plastic expansion pipes. The device is high in bonding strength with the wall body, high in construction efficiency, convenient to install and long in service life, reduces the construction and later maintenance cost, and can improve the flatness of the corners of the wall body so as to achieve the purposes of protecting and decorating wall corners.

Description

Technical Field

[0001] The utility model belongs to the technical field of wall corner protection, and in particular relates to a pre-embedded clamp type novel prefabricated wall corner protection device. Background Art

[0002] The building wall is generally a block or cast-in-place concrete structure, which forms a base wall or rough wall after construction. Since the surface of the base wall is mostly uneven, it is necessary to treat the surface of the base wall before painting the wall. Since the quality of painting directly affects the decorative effect of the entire wall, especially the intersection of two walls and the flatness of the edges and corners are difficult to guarantee, base lines, corner guards and other devices are generally used in engineering to improve the flatness of the inner or outer corners and enhance the strength of the plaster at the edge of the wall, so as to protect the edges and corners of the wall and make it beautiful. At present, the common corner guards on the market are generally made of metal or plastic, and the wall construction method mostly uses manual mortar application for leveling. The thickness of the mortar is not easy to control, and the construction is difficult. The corner guards are easy to slip and difficult to detect during the application and pressing process, making it difficult to adjust later. The flatness and verticality of the edges and corners are difficult to ensure. At the same time, the corner guards and wall corners are often fixed to each other through sheet metal putty, cement mortar and other materials. The bonding is not strong enough, and the bonding strength between the corner guards and cement mortar is insufficient. The corner guards often warp and detach, increasing the cost of later decoration and maintenance. Utility Model Content

[0003] The purpose of the utility model is to provide a new type of prefabricated wall corner protection device with embedded clips, which has high bonding strength with the wall, high construction efficiency, convenient installation, long service life, reduces construction and later maintenance costs, and can improve the flatness of the wall corners to achieve the purpose of protecting and decorating the corners.

[0004] The technical solution adopted by the utility model is a new type of prefabricated wall corner protection device with embedded clips, including a glass fiber reinforced plastic corner protection strip, a glass fiber mesh adhesive tape, an embedded clip type plastic expansion tube and a self-expanding groove type locking bolt. The glass fiber reinforced plastic corner protection strip is attached to the wall corner, the glass fiber mesh adhesive tape is attached to the outer side of the glass fiber reinforced plastic corner protection strip, the embedded clip type plastic expansion tube has two rows and the two rows of embedded clip type plastic expansion tubes are respectively embedded in the wall on both sides of the wall corner, the self-expanding groove type locking bolt corresponds to the embedded clip type plastic expansion tube one by one and can pass through the glass fiber reinforced plastic corner protection strip and the glass fiber mesh adhesive tape and then be inserted into the embedded clip type plastic expansion tube.

[0005] Furthermore, the bottom of the embedded clamp-type plastic expansion tube is provided with an annular groove-type clamping slot that can be engaged with the wall.

[0006] Furthermore, the distance between the embedded clip-type plastic expansion tube and the side vertical rib line of the wall corner is 50-100 mm, the shortest distance between the embedded clip-type plastic expansion tube and the upper and lower sides of the wall is not less than 50 mm, and the spacing between adjacent embedded clip-type plastic expansion tubes in the same row is 500 mm.

[0007] Furthermore, a tongue-and-groove groove is provided on the outer surface of the glass fiber reinforced plastic corner bead, and a tongue-and-groove adhesive strip capable of being embedded in the tongue-and-groove groove is provided on the inner surface of the glass fiber mesh adhesive tape.

[0008] Furthermore, corresponding reserved screw holes are provided on the tongue-and-groove type card slot and the tongue-and-groove type rubber strip, and the self-expanding bottom groove type locking key bolt can be inserted into the reserved screw hole.

[0009] Furthermore, mutually perpendicular grid bars are arranged on the outer surface of the glass fiber grid adhesive tape, and the width of the grid bars is 150-200 mm.

[0010] Furthermore, the thickness of the glass fiber reinforced plastic corner protector is not less than 1.5 mm.

[0011] The beneficial effects of the utility model are:

[0012] 1. This device adopts the integrated design of glass fiber reinforced plastic corner strip and glass fiber mesh adhesive tape, and the two are connected with high strength through the tongue and groove connector;

[0013] 2. The use of pre-buried card-type plastic expansion tubes and self-expanding bottom groove lock bolts can improve the mechanical bite force between the wall structure and the corner protection device, making it strong and durable, and prevent the corner protection from falling off and damaging the wall due to insufficient bonding strength;

[0014] 3. The corner protection device is firmly connected to the wall, which is beneficial to the construction flatness of wall plastering and finishing, reduces construction difficulty and improves construction efficiency;

[0015] 4. The embedded card-type plastic expansion pipe can be designed, produced and constructed in a standardized manner, with a high degree of industrialization;

[0016] 5. The glass fiber reinforced plastic corner guard strips and glass fiber mesh adhesive tapes are fixed by tongue-and-groove slots, eliminating the traditional bonding construction process, and can be prefabricated and produced in various specifications according to different application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a technical diagram of the structural section of the utility model;

[0019] Figure 3 It is a schematic diagram of the structural section of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure assembly of the utility model;

[0021] Explanation of the reference numerals in the accompanying drawings: 1. Embedded plastic expansion sleeve; 2. Self-expanding groove-type locking bolt; 3. Glass fiber reinforced plastic corner protector; 4. Wall; 5. Reserved screw holes; 6. Glass fiber mesh adhesive tape; 7. Tongue-and-groove slot; 8. Cut-off protruding embedded plastic expansion tube; 9. Tongue-and-groove rubber strip; 11. Annular groove slot. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model clearer and more understandable, the technical solution of the utility model will be further described in detail below with reference to the accompanying drawings.

[0023] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the utility model provides a new type of prefabricated wall corner protection device with embedded clamps, including embedded clamp-type plastic expansion tubes 1, self-expanding groove type locking bolts 2, glass fiber reinforced plastic corner protection strips 3, and glass fiber grid adhesive tapes 6. The glass fiber reinforced plastic corner protection strips 3 are attached to the wall corners, and the glass fiber grid adhesive tapes 6 are attached to the top and sides of the glass fiber reinforced plastic corner protection strips 3. The embedded clamp-type plastic expansion tubes 1 have two rows and the two rows of embedded clamp-type plastic expansion tubes 1 are respectively embedded in the walls 4 on both sides of the wall corners. The self-expanding groove type locking bolts 2 correspond to the embedded clamp-type plastic expansion tubes 1 one by one and can pass through the glass fiber reinforced plastic corner protection strips 3 and the glass fiber grid adhesive tapes 6 and then be inserted into the embedded clamp-type plastic expansion tubes 1.

[0024] The thickness of the glass fiber reinforced plastic corner bead 3 is not less than 1.5 mm, and the outer surface of the glass fiber mesh adhesive tape 6 is provided with mutually perpendicular mesh strips with a width of 150 to 200 mm.

[0025] The embedded card-type plastic expansion tube 1 is pre-buried in the cast-in-place concrete wall 4, the glass fiber reinforced plastic corner bead 3 is attached to the intersection of the cast-in-place concrete wall 4, and the glass fiber mesh adhesive tape 6 is attached to the outer surface of the glass fiber reinforced plastic corner bead 3. The self-expanding bottom groove type locking bolt 2 passes through the glass fiber reinforced plastic corner bead 3 and the glass fiber mesh adhesive tape 6 and then engages with the embedded card-type plastic expansion tube 1 to fix the glass fiber reinforced plastic corner bead 3 and the fiber mesh adhesive tape 6 to the cast-in-place concrete wall 4.

[0026] It should be noted that after the pre-embedded clip-type plastic expansion tube 1 is buried in the wall 4, a part of the protruding pre-embedded plastic expansion tube will extend outside the wall, and it needs to be cut off as a whole (the protruding pre-embedded plastic expansion tube 8 that is cut off) to ensure that the pre-embedded clip-type plastic expansion tube 1 is flush with the surface of the wall 4.

[0027] The self-expanding groove locking bolt 2 is a flat head bolt with an annular necked groove locking screw that can expand its bottom by itself. Its diameter matches the embedded card-type plastic expansion tube 1, and it can automatically expand the hole during installation, forming a mechanical lock at the bottom of the anchor bolt, so that the glass fiber reinforced plastic corner strip 3 and the glass fiber mesh adhesive tape 6 are firmly fixed to the cast-in-place concrete wall 4.

[0028] The bottom of the embedded clamp type plastic expansion pipe 1 is provided with an annular groove type clamping groove 11 which can be engaged with the wall 4 , which can further enhance the bite force between the embedded clamp type plastic expansion pipe 1 and the wall 4 .

[0029] The distance between the embedded clip-type plastic expansion tube 1 and the side vertical rib line of the wall corner is 50-100 mm, the shortest distance between the embedded clip-type plastic expansion tube 1 and the upper and lower sides of the wall 4 is not less than 50 mm, and the spacing between adjacent embedded clip-type plastic expansion tubes 1 in the same row is 500 mm, thereby meeting the burial requirements of the embedded clip-type plastic expansion tube 1, ensuring that the embedded clip-type plastic expansion tube 1 is evenly distributed, and optimizing the fixing effect.

[0030] A tongue-and-groove groove 7 is provided on the outer surface of the glass fiber reinforced plastic corner bead 3, and a tongue-and-groove rubber strip 9 which can be embedded in the tongue-and-groove groove 7 is provided on the inner surface of the glass fiber mesh adhesive tape 6. Corresponding reserved screw holes 5 are provided on the tongue-and-groove groove 7 and the tongue-and-groove rubber strip 9, and the self-expanding bottom groove type locking bolt 2 can be inserted into the reserved screw hole 5.

[0031] The reserved screw hole 5 can engage with the embedded card-type plastic expansion tube 1, ensuring that the end of the self-expanding bottom groove type locking bolt 2 is flush with the surface of the glass fiber reinforced plastic corner strip 3, which is more beautiful and stable.

[0032] The tongue-and-groove slot 7 is provided and the tongue-and-groove rubber strip 9 is designed so that the glass fiber reinforced plastic corner protector 3 and the glass fiber mesh adhesive tape 6 can be engaged with each other, that is, the glass fiber mesh adhesive tape 6 is clamped between the designed tongue-and-groove rubber strip 9 and the glass fiber reinforced plastic corner protector 3, and then fixed by the self-expanding groove type locking bolt 2, thereby eliminating the construction process of sticking the anti-slip strip glue and solving the problems of weak adhesion of the rubber strip, easy wear and tear of the rubber strip, easy falling off and difficulty in replacement.

[0033] The scenario set by the utility model is the interior decoration project of cast-in-place concrete walls in civil buildings and industrial buildings. The overall installation process is as follows: taking the integral cast-in-place reinforced concrete wall as an example, during the construction of the cast-in-place structural concrete sub-division project, after completing the template sub-items, reinforcement sub-items, prestressed sub-items, concrete sub-items and other construction processes of the corresponding wall 4, before pouring the staircase structure concrete, the embedded clip-type plastic expansion sleeve 1 should be pre-installed, using a Φ3.5 embedded clip-type plastic expansion sleeve 1, and setting the embedded clip-type plastic expansion sleeve 1 in the step support template, so that the distance between the embedded clip-type plastic expansion sleeve 1 and the cast-in-place concrete corner side vertical rib line is 50 to 100 mm, and the adjacent embedded clip-type plastic expansion sleeves 1 in the same row are spaced 500 mm apart and then tied securely, and the top ends thereof protrude from the cast-in-place concrete wall 4 to ensure that the top height of each embedded clip-type plastic expansion sleeve 1 is level, and the embedded clip-type plastic expansion sleeve 1 can be standardized in design and production in the factory and standardized on-site construction, and the component has a high degree of industrialization.

[0034] After the installation of the embedded card-type plastic expansion sleeve 1 is completed, the concrete concealed project is accepted and confirmed by the supervisor, and the concrete pouring construction of the wall structure is carried out. During the pouring process, the position of the embedded card-type plastic expansion sleeve 1 is guaranteed to be fixed, not tilted, and not misaligned, so as to meet the construction quality of the concrete project.

[0035] After the pouring, curing and demolding of cast-in-place concrete are completed, the excess part of the embedded card-type plastic expansion sleeve 1 protruding from the surface of the cast-in-place concrete wall 4 is cut off to keep it in line with the height of the concrete surface, thereby reducing the impact on the integrity of the concrete stairs and anti-slip strips during the installation process.

[0036] According to the height of the cast-in-place concrete wall 4, a glass fiber reinforced plastic corner bead 3 of corresponding size is designed and customized in a standardized manner, and the glass fiber reinforced plastic corner bead 3 is laid flat at the intersection of the cast-in-place concrete wall 4, and then the tongue-and-groove adhesive strip 9 of the glass fiber mesh adhesive tape 6 is fixed to the tongue-and-groove groove 7 on the glass fiber reinforced plastic corner bead 3, and then the self-expanding groove type locking bolt 2 is passed through the reserved screw hole 5 of the glass fiber reinforced plastic corner bead 3 and the glass fiber mesh adhesive tape 6, and then the self-expanding groove type locking bolt 2 is hammered and pressed, so that the self-expanding groove type locking bolt 2 is engaged with the annular groove inside the embedded card-type plastic expansion sleeve 1 to form a mutual mechanical lock, which meets the pull-out force experimental test requirements, and the hole expansion is completed during installation, so that the glass fiber reinforced plastic corner bead 3 is fixed to the embedded card-type plastic expansion sleeve 1, so that the corner protection device and the wall form an integral force structure.

[0037] After the installation of the new prefabricated wall corner protection device with embedded clips is completed, the base wall plastering, puttying, sand filling and other processes can be carried out to make the mortar leveling layer completely cover and wrap the corner protection device, ensuring that the plaster layer has no defects such as hollowing and exposed dust, and then the wall can be sprayed or painted with finishing materials.

[0038] The utility model records a new type of prefabricated wall corner protection device with embedded clips, which can be stable under collision, vibration and impact loads, is easy to construct, labor-saving to install, can improve construction efficiency, and has high strength, waterproof, anti-corrosion and other characteristics; at the same time, the utility model adopts an integrated design of glass fiber reinforced plastic corner protection strip 3 and glass fiber mesh adhesive tape 6, with a simple shape, and uses a self-expanding bottom groove lock bolt 2 to firmly connect the glass fiber reinforced plastic corner protection strip 3 with the base wall 4, which can effectively prevent the corner protection strip from warping and detaching, and can reduce the construction and later maintenance costs; at the same time, the device can meet the requirements of standardized design, production and construction, and has a high degree of industrialization. Compared with other similar corner protection devices, the device is more practical, safe, flexible, economical and beautiful.

[0039] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A new type of prefabricated wall corner protection device with embedded clips, characterized in that: It includes a glass fiber reinforced plastic corner protector, a glass fiber mesh adhesive tape, a pre-embedded clip-type plastic expansion tube and a self-expanding groove type locking bolt. The glass fiber reinforced plastic corner protector is attached to the wall corner, the glass fiber mesh adhesive tape is attached to the outer side of the glass fiber reinforced plastic corner protector, the pre-embedded clip-type plastic expansion tube has two rows and the two rows of pre-embedded clip-type plastic expansion tubes are respectively embedded in the wall on both sides of the wall corner, the self-expanding groove type locking bolt corresponds to the pre-embedded clip-type plastic expansion tube one by one and can pass through the glass fiber reinforced plastic corner protector and the glass fiber mesh adhesive tape and then be inserted into the pre-embedded clip-type plastic expansion tube.

2. The embedded clamp type novel prefabricated wall corner protection device according to claim 1 is characterized in that: The bottom of the pre-buried clamp-type plastic expansion pipe is provided with an annular groove-type clamping slot which can be clamped with the wall.

3. The embedded clamp type new prefabricated wall corner protection device according to claim 1 is characterized in that: The distance between the embedded clip-type plastic expansion tube and the side vertical rib line of the wall corner is 50-100mm, the shortest distance between the embedded clip-type plastic expansion tube and the upper and lower sides of the wall is not less than 50mm, and the spacing between adjacent embedded clip-type plastic expansion tubes in the same row is 500mm.

4. The embedded clamp type novel prefabricated wall corner protection device according to claim 1 is characterized in that: The outer surface of the glass fiber reinforced plastic corner bead is provided with a tongue-and-groove groove, and the inner surface of the glass fiber mesh adhesive tape is provided with a tongue-and-groove adhesive strip that can be embedded in the tongue-and-groove groove.

5. The embedded clamp type novel prefabricated wall corner protection device according to claim 4 is characterized in that: The tongue-and-groove type card slot and the tongue-and-groove type rubber strip are provided with corresponding reserved screw holes, and the self-expanding bottom groove type locking bolt can be inserted into the reserved screw holes.

6. The embedded clamp type novel prefabricated wall corner protection device according to claim 1 is characterized in that: The outer surface of the glass fiber mesh adhesive tape is provided with mutually perpendicular mesh strips, and the width of the mesh strips is 150-200 mm.

7. The embedded clamp type novel prefabricated wall corner protection device according to claim 1 is characterized in that: The thickness of the glass fiber reinforced plastic corner bead is not less than 1.5 mm.

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