Anchor bolt for fixing building external wall insulation board

Abstract

The utility model relates to the technical field of building installation, in particular to an anchor bolt for fixing a building external wall insulation board, which comprises a screw, a disc, a sleeve and a sealing piece, the sleeve is connected with the bottom surface of the disc, a positioning hole is arranged in the center of the disc, a rod part of the screw penetrates through the positioning hole and is positioned in the sleeve, and the sealing piece is positioned at the outer end of the screw. The sealing piece comprises a gasket, a buckling piece, a plurality of pressing blocks and a plurality of elastic pieces, the buckling piece is located at the bottom of the gasket, the head of the screw is sleeved with the buckling piece, a plurality of clamping grooves are formed in the periphery of the buckling piece, one end of each elastic piece is fixed in the corresponding clamping groove, and the other end of each elastic piece is fixed to the side face of the corresponding pressing block; an annular groove is formed in the disc and located on the periphery of the positioning hole, and an annular protrusion is arranged on the inner wall of the annular groove. According to the anchor bolt for fixing the building external wall insulation board, the screw cannot be in direct contact with air or mortar, the durability of the anchor bolt is improved, and the safety of the whole external wall insulation board is improved.

Description

Technical Field

[0001] This utility model relates to the field of building installation technology, specifically to an anchor bolt used for fixing building exterior wall insulation panels. Background Technology

[0002] Driven by the iteration of building energy-saving technologies and the concept of sustainable development, the building installation industry is accelerating its transformation and upgrading towards green, low-carbon, and resource-efficient directions. Building exterior wall insulation boards have emerged as a result. Building exterior wall insulation boards are a type of board with thermal insulation function. The installation process usually involves first leveling the exterior wall, then applying an adhesive layer to the inner side of the insulation board, attaching the insulation board to the exterior wall, and finally fixing it with anchor bolts after a period of stabilization. If it is only fixed by adhesive mortar on the adhesive layer, its firmness is poor and it is easy to fall off during use. Therefore, the anchor bolt reinforcement step is particularly important.

[0003] In existing technologies, after the anchor bolts used to fix building exterior wall insulation boards are installed, the heads of the screws are exposed to the outside. Then, plastering mortar, mesh cloth, and other external decorative layers are directly laid on the outer layer. Since the screws are made of metal, they are in direct contact with air or moisture in the mortar. With long-term use of the insulation board, the screws are prone to corrosion and loosening. The degree of fixation of the screws in the anchor bolt structure determines the service life of the overall structure. Therefore, it is necessary to improve the above structure. Utility Model Content

[0004] To address the aforementioned problems, the main objective of this utility model is to provide an anchor bolt for fixing building exterior wall insulation panels. The screws of this anchor bolt will not come into direct contact with air or mortar, thereby improving the durability of the anchor bolt and enhancing the overall safety of the exterior wall insulation panel.

[0005] To achieve the above objectives, this utility model provides an anchor bolt for fixing building exterior wall insulation boards, comprising a screw, a disc, a sleeve, and a closure. The sleeve is connected to the bottom surface of the disc, and the disc has a positioning hole at its center. The shank of the screw passes through the positioning hole and is located inside the sleeve. The closure is located at the outer end of the screw and includes a washer, a fastener, several pressing blocks, and several elastic elements. The fastener is located at the bottom of the washer and is fitted onto the head of the screw. The outer periphery of the fastener has several slots. One end of the elastic element is fixed in the slot, and the other end is fixed to the side of its corresponding pressing block. The disc has an annular groove on the outer periphery of the positioning hole, and the inner wall of the annular groove has an annular protrusion.

[0006] In other preferred embodiments, the side of the pressing block is provided with an inclined portion, the area of ​​the horizontal cross-section of the pressing block gradually increases from bottom to top, and there is a distance between the upper end surface of the pressing block and the bottom surface of the pad.

[0007] In other preferred embodiments, the number of pressing blocks, elastic elements and slots are the same, the gasket is located in the annular groove, and a number of hollowed-out parts are evenly arranged along the circumference on the disc.

[0008] In other preferred embodiments, the sleeve is provided with a pointed tip, an expansion portion, and several barbed structures.

[0009] In other preferred embodiments, the disk and sleeve are made of modified reinforced nylon composite material, and the gasket is made of rubber or silicone.

[0010] In other preferred embodiments, a hollow cavity is provided inside the sleeve between the expansion section and the disk, and several through holes are provided on the outer wall of the sleeve, through which the hollow cavity communicates with the outside of the sleeve.

[0011] Through the above technical solution, the anchor bolt of this utility model is provided with a sealing element. The sealing element is set on the outer end of the screw. The sealing element can cover the head of the screw and finally fix it in the center of the disc. This can isolate the screw from the outside air or mortar, prevent it from being corroded and affecting normal use. Moreover, the sealing element is easy to install, stable and firm, and has the value of being promoted and used. Attached Figure Description

[0012] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0013] Figure 1 This is a diagram showing the usage status of the anchor bolts used to fix building exterior wall insulation boards according to this utility model.

[0014] Figure 2 This is a structural schematic diagram of the anchor bolt used to fix the exterior wall insulation board of this utility model.

[0015] Figure 3 This is the utility model Figure 2 Enlarged view of part A in the image.

[0016] Figure 4 This is a structural schematic diagram of the anchor bolt used to fix the exterior wall insulation board of this utility model from another angle.

[0017] Figure 5 This is the utility model Figure 4 Enlarged view of part B in the image.

[0018] Explanation of reference numerals in the attached figures

[0019] 1. Exterior wall; 2. Insulation board; 3. Anchor bolts; 10. Screws;

[0020] 20. Disc; 21. Positioning hole; 22. Annular groove; 23. Annular protrusion; 24. Hollowed-out section;

[0021] 30. Sleeve; 31. Point; 32. Expansion section; 33. Barbed structure;

[0022] 40. Closure component; 41. Gasket; 42. Fastening component; 421. Slot; 43. Pressing block; 431. Inclined part; 44. Elastic component. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] like Figure 1 The diagram shows the usage state of the anchor bolts used to fix the exterior wall insulation board of this utility model. The anchor bolt 3 of this utility model is used to fix the insulation board 2 to the outer side of the exterior wall 1, as shown. Figure 2 and Figure 3 As shown, the anchor bolt of this utility model includes a screw 10, a disc 20, and a sleeve 30. The upper end of the sleeve 30 is connected to the bottom surface of the disc 20, or the sleeve 30 and the disc 20 can be integrally injection molded. The sleeve 30 is provided with a pointed head 31, an expansion part 32, and several barbed structures 33. The disc 20 has a positioning hole 21 in the center, and several hollow parts 24 are evenly arranged on the disc 20 along the outer circumference of the positioning hole 21. The shank of the screw 10 passes through the positioning hole 21 and is located inside the sleeve 30. When installing and using the anchor bolt 3 of this utility model, holes are first drilled at the joint of the insulation board 2 or other locations that need reinforcement using an impact drill. The innermost end of the drilled hole should be located inside the outer wall 1, and the depth of the drilled hole should generally be 10mm longer than the anchor. Then, the sleeve 30 is inserted into the drilled hole, and the screw 10 is inserted into the sleeve 30 through the positioning hole 21 of the disc 20. The screw 10 is then directly hammered into the outer wall 1 and the insulation board 2, or screwed into the outer wall 1 and the insulation board 2. During the hammering or screwing process, the front part of the screw 10 enters the interior of the outer wall 1, and at the same time, the expansion part 32 on the sleeve 30 deforms and embeds into the interior of the outer wall 1. The barbed structure 33 can also prevent the sleeve 30 from being misaligned. Finally, the insulation board 2 is stably fixed to the outer wall 10 by the anchor bolt 3.

[0025] Please continue reading. Figure 2 As shown, the anchor bolt 3 of this utility model is also provided with a sealing member 40. The sealing member 40 is located at the outer end of the screw 10, and the sealing member 40 can completely cover the outer end of the screw 10. Specifically, as shown... Figure 4 and Figure 5As shown, the closure 40 includes a gasket 41, a fastening element 42, several pressing blocks 43, and several elastic elements 44. The fastening element 42 is located at the bottom of the gasket 41 and is fitted onto the head of the screw 10. Several slots 421 are provided on the outer periphery of the fastening element 42. One end of each elastic element 44 is fixed in a slot 421, and the other end is fixed to the side of its corresponding pressing block 43. The number of pressing blocks 43, elastic elements 44, and slots 421 are the same. The disc 20 and sleeve 30 can be made of modified reinforced nylon composite material, and the gasket 41 is made of rubber or silicone. Additionally, as... Figure 3 As shown, the disc 20 of this utility model has an annular groove 22 on the outer periphery of the positioning hole 21. The annular groove 22 is located inside the hollow part 24, and the inner wall of the annular groove 22 has an annular protrusion 23.

[0026] The specific structure of the pressing block 43 of this utility model is as follows: Figure 5 As shown, the side of the pressing block 43 is provided with an inclined part 431, and the area of ​​the horizontal cross section of the pressing block 43 gradually increases from bottom to top. There is a distance between the upper end surface of the pressing block 43 and the bottom surface of the pad 41. In use, the closure 40 of this utility model first places the fastening member 42 on the head of the screw 10. The fastening member 42 can be made of a material with a certain degree of deformation, which is not limited here. As the screw 10 moves closer to the outer wall 1 inside the sleeve 30 by either tapping or screwing it in, the fastening member 42 will move closer to the annular groove 22. At the same time, the inclined part 431 of the pressing block 43 abuts against the inner wall of the annular protrusion 23, and the elastic member 44 is compressed. With gradual pressing, the pressing block 43 eventually slides into the lower part of the annular protrusion 23, and the annular protrusion 23 locks the pressing block 43 in place. The gasket 41 is located in the annular groove 22. Thus, the closure 40 can completely seal the head of the screw 10 inside the disc 20 to prevent it from contacting air or the mortar layer and being corroded.

[0027] In other preferred embodiments, a hollow cavity (not shown in the figure) is provided inside the sleeve 30 between the expansion part 32 and the disk 20. Several through holes (also not shown) are provided on the outer wall of the sleeve 30. The hollow cavity communicates with the outside of the sleeve 30 through the through holes. In this embodiment, before inserting the screw 10 into the sleeve 30, glue is injected into the hollow cavity, and then the screw 10 is inserted. As the screw 10 enters, the glue in the hollow cavity flows out from the inside to the outside through the through holes. The hollow cavity is positioned at the contact point between the sleeve 30 and the insulation board 2. Therefore, the glue can tightly bond the screw 10, the sleeve 30 and the insulation board 2, improving stability.

[0028] Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

Claims

1. An anchor for securing an external wall insulation panel to a building, characterised in that The utility model provides a screw (10), disc (20), sleeve (30) and closure (40) including, sleeve (30) is connected with the bottom surface of disc (20), the disc (20) center is equipped with positioning hole (21), the stem of screw (10) passes through positioning hole (21) and is located in sleeve (30), closure (40) is located at the outer end of screw (10), closure (40) includes gasket (41), buckling piece (42), a plurality of pressing block (43) and a plurality of elastic piece (44), buckling piece (42) is located at the bottom of gasket (41), buckling piece (42) is sleeved in the head of screw (10), the outer periphery of buckling piece (42) is equipped with a plurality of card slot (421), one end of elastic piece (44) is fixed in card slot (421), the other end is fixed in the side of its corresponding pressing block (43), the outer periphery of disc (20) located positioning hole (21) is equipped with annular groove (22), the inner wall of annular groove (22) is equipped with annular convex (23).

2. The anchor according to claim 1, wherein The side of pressing block (43) is equipped with inclined part (431), and the area of the horizontal direction section of pressing block (43) gradually increases from bottom to top, and the upper end surface of pressing block (43) has a distance from the bottom surface of gasket (41).

3. The anchor of claim 1, wherein The number of pressing block (43), elastic piece (44) and card slot (421) is same, gasket (41) is located in annular groove (22), and a plurality of hollow parts (24) are uniformly arranged on the circumference of disc (20).

4. An anchor for securing an external wall insulation panel to a building according to any one of claims 1 to 3, characterised in that The sleeve (30) is equipped with a sharp head (31), an expansion part (32) and a plurality of barb structures (33).

5. An anchor for securing an external wall insulation panel to a building according to any one of claims 1 to 3, characterised in that The disc (20) and the sleeve (30) are prepared from a modified reinforced nylon composite material, and the gasket (41) is made of rubber or silicone.

6. The anchor of claim 4, wherein A hollow cavity is arranged between the expansion part (32) and the disc (20) in the sleeve (30), a plurality of through holes are arranged on the outer wall of the sleeve (30), and the hollow cavity is in communication with the outside of the sleeve (30) through the through holes.

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