Building outer wall heat preservation anchor bolt structure and heat preservation outer wall

Abstract

The invention discloses a building outer wall heat preservation anchor bolt structure and a heat preservation outer wall, and relates to the technical field of building outer wall heat preservation. The plug comprises a first plug core and a first expansion pipe. The first expansion pipe is correspondingly sleeved outside the first bolt core; a first groove is formed in the side part of the first bolt core along the normal direction; a limiting rod is arranged on the inner side of the first expansion pipe; the limiting rod is slidably arranged in the first groove; one end of the limiting rod is fixedly connected with the inner wall of the first expansion pipe; and the bolt tail of the first bolt core is in threaded connection with a locking nut. The expansion bolt has the beneficial effects that relative rotation between the first bolt core and the first expansion pipe during installation can be avoided, and the process that the first bolt core is pulled outwards to expand the head of the first expansion pipe is smoother.

Description

Technical Field

[0001] The invention relates to the technical field of building exterior wall insulation, and in particular to a building exterior wall insulation anchor bolt structure and an insulation exterior wall. Background Art

[0002] Building exterior wall insulation is achieved by laying insulation materials on the exterior walls of buildings to reduce heat exchange between the inside and outside of the building, reduce energy consumption, stabilize indoor temperature, prevent the wall from getting damp and cracking, extend the life of the building, and improve living comfort. Commonly used insulation boards include inorganic materials (such as EPS, XPS, polyurethane), organic materials (such as rock wool, foamed cement), composite boards (such as insulation and decorative integrated boards), etc.

[0003] Since the insulation board and the building exterior wall are not made of the same material, cement mortar alone cannot secure them firmly, so anchor bolts are usually fixed to the wall, and then the insulation board is connected to the anchor bolts to achieve a secure installation of the insulation board on the building exterior wall. However, the current anchor bolt structure usually only has one part that is locked with the wall. Once expansion, contraction, cracking, etc. occur here, the anchor bolt installed here is easy to loosen and fall off. Under the requirement of long service life of the building exterior wall, the reliability cannot be guaranteed. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a building exterior wall insulation anchor bolt structure and an insulation exterior wall in view of the above-mentioned technical deficiencies, which can avoid relative rotation between the first bolt core and the first expansion tube during installation, so that the process of pulling the first bolt core outward to expand the head of the first expansion tube is smoother.

[0005] The technical solution adopted by the present invention is: to provide a thermal insulation anchor bolt structure for the exterior wall of a building, comprising a first bolt core and a first expansion tube; the first expansion tube is correspondingly sleeved outside the first bolt core; a first groove is opened on the side of the first bolt core along the normal direction; a limiting rod is provided on the inner side of the first expansion tube; the limiting rod is slidably arranged in the first groove; one end of the limiting rod is fixedly connected to the inner wall of the first expansion tube; a locking nut is threadedly connected on the bolt tail of the first bolt core.

[0006] To further optimize the technical solution, a second bolt core is coaxially arranged on the outer side of the bolt head of the first bolt core of a building exterior wall insulation anchor structure; a second expansion tube is correspondingly sleeved on the outside of the second bolt core; the bolt head of the first bolt core and the bolt tail of the second bolt core are connected by a pull rod; a second groove is correspondingly opened on the side of the second bolt core along the normal direction; the limiting rod slides along the normal direction to penetrate the bolt head of the first bolt core; the limiting rod slides into the second groove and is fixedly connected to the inner wall of the second expansion tube.

[0007] To further optimize the technical solution, a pull rod of a building exterior wall insulation anchor bolt structure is provided with a buffer rubber sleeve on the outside; the two ends of the buffer rubber sleeve are respectively connected to the first bolt core and the second bolt core; and the limiting rod passes through the inside of the buffer rubber sleeve.

[0008] To further optimize the technical solution, an inner retaining ring is fixedly sleeved on the tail of the first expansion tube of a building exterior wall insulation anchor structure; an outer retaining ring slidably sleeved on the first bolt core is arranged between the inner retaining ring and the locking nut.

[0009] To further optimize the technical solution, a through hole for passing a steel rope is opened on the side of an outer retaining ring of a building exterior wall insulation anchor structure.

[0010] To further optimize the technical solution, a thermal insulation exterior wall includes a thermal insulation board laid on the exterior wall of the building, and the thermal insulation board is fixedly connected to the exterior wall of the building through the anchor structure.

[0011] The beneficial effects of the present invention are: The first expansion tube and the first expansion core are connected together by a plurality of locking nut, and the locking nut is connected to the first expansion tube so that the locking nut can be tightened. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the structural decomposition of the present invention; Figure 3 This is a local state diagram when installing insulation panels.

[0013] In the figure, 1, first bolt core; 2, first expansion tube; 3, first groove; 4, limiting rod; 5, locking nut; 6, second bolt core; 7, second expansion tube; 8, pull rod; 9, second groove; 10, buffer rubber sleeve; 11, inner retaining ring; 12, outer retaining ring; 13, steel rope; 14, through hole; 15, thermal insulation board. DETAILED DESCRIPTION

[0014] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0015] like Figure 1-2As shown, a thermal insulation anchor bolt structure for the exterior wall of a building comprises a first bolt core 1 and a first expansion tube 2; the first expansion tube 2 is correspondingly sleeved outside the first bolt core 1; a first groove 3 is opened on the side of the first bolt core 1 along the normal direction; a limiting rod 4 is provided on the inner side of the first expansion tube 2; the limiting rod 4 is slidably arranged in the first groove 3; one end of the limiting rod 4 is fixedly connected to the inner wall of the first expansion tube 2; a locking nut 5 is threadedly connected on the bolt tail of the first bolt core 1.

[0016] The anchor bolt is fixed to the wall by drilling a hole in the wall, placing the anchor bolt in the wall hole, and then pulling the first bolt core 1 relative to the first expansion tube 2 so that the bolt head of the first bolt core 1 pushes the head of the first expansion tube 2 outward, and the head of the first expansion tube 2 expands and squeezes against the inner wall of the wall hole to achieve the fixing of the anchor bolt.

[0017] The outward pulling action of the first bolt core 1 is achieved by screwing the locking nut 5 on the first bolt core 1 with the help of the blocking of the first expansion tube 2. Therefore, in this solution, the arrangement of the first groove 3 and the limiting rod 4 can prevent the first expansion tube 2 and the first bolt core 1 from rotating relative to each other, making it more convenient to operate when screwing the locking nut 5.

[0018] like Figure 1-2 As shown, in one embodiment, a second bolt core 6 is coaxially arranged on the outer side of the bolt head of the first bolt core 1; a second expansion tube 7 is correspondingly sleeved on the outer side of the second bolt core 6; the bolt head of the first bolt core 1 and the bolt tail of the second bolt core 6 are connected by a pull rod 8; a second groove 9 is correspondingly opened on the side of the second bolt core 6 along the normal direction; the limiting rod 4 slides along the normal direction and penetrates the bolt head of the first bolt core 1; the limiting rod 4 slides into the second groove 9 and is fixedly connected to the inner wall of the second expansion tube 7.

[0019] In order to avoid the problem that the anchor bolt is easy to loosen and the reliability is insufficient due to the squeezing and fixing of the wall hole by only the first expansion tube 2, once the wall at this position expands, shrinks, cracks, etc., the second bolt core 6 and the second expansion tube 7 are also provided in this embodiment. The second expansion tube 7 is connected to the first expansion tube 2 by the limiting rod 4, and the second bolt core 6 is connected to the first bolt core 1 by the pull rod 8. When the first bolt core 1 is pulled outward relative to the first expansion tube 2, the second bolt core 6 is pulled outward relative to the second expansion tube 7, and the second expansion tube 7 expands to squeeze and fix the wall hole. The second fixed position between the wall hole and the structure here is provided. Even if one of the squeezing positions with the wall is loose, the fixation can be ensured by another position, thereby improving the reliability of the anchor bolt.

[0020] In addition, there is a large distance between the two locations where the wall holes are squeezed and fixed, which can greatly avoid the problem of cracking and damage of the walls at different depths at the two locations, thereby ensuring the reliability of the fixation.

[0021] like Figure 1-2As shown, the outside of the pull rod 8 is covered with a buffer rubber sleeve 10; the two ends of the buffer rubber sleeve 10 are respectively connected to the first bolt core 1 and the second bolt core 6; the limiting rod 4 passes through the inside of the buffer rubber sleeve 10. The purpose of the buffer rubber sleeve 10 is to protect the pull rod 8 and the limiting rod 4. Since there is a large gap between the first bolt core 1 and the second bolt core 6 and the wall hole, the falling objects that fall off the cracked wall and collide with the pull rod 8 and the limiting rod 4 are likely to produce abnormal noises, so the buffer rubber sleeve 10 is used to fill the gap and block the falling objects.

[0022] like Figure 1-3 As shown, an inner retaining ring 11 is sleeved and fixed at the tail of the first expansion tube 2; an outer retaining ring 12 is provided between the inner retaining ring 11 and the locking nut 5 and is slidably sleeved on the first bolt core 1. The inner retaining ring 11 is used to block the wall hole and is provided on the inner side of the insulation board 15, and the outer retaining ring 12 is used to block the outer side of the insulation board 15. By blocking the outer retaining ring 12 with the locking nut 5, the insulation wallboard can be positioned on the anchor bolt.

[0023] like Figure 1-3 As shown, the outer retaining ring 12 has a through hole 14 for passing the steel rope 13. By passing the steel rope 13 through the through holes 14 on multiple anchor bolts in sequence, the steel rope 13 can expand the blocking and limiting effect on the insulation board 15, and further improve the limiting effect on the insulation board 15.

[0024] like Figure 3 As shown, a heat-insulating exterior wall includes a heat-insulating plate 15 correspondingly laid on the exterior wall of a building, and the heat-insulating plate 15 is fixedly connected to the exterior wall of the building through the anchor bolt structure. After the anchor bolt is fixed to the wall, the tail of the first bolt core 1 passes through the heat-insulating plate 15, and with the help of the blocking of the locking nut 5, the heat-insulating plate 15 can be installed on the exterior wall of the building.

[0025] It is to be understood that the present invention is described by some embodiments, and it is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A building exterior wall insulation anchor structure, characterized in that: The invention comprises a first bolt core (1) and a first expansion tube (2); the first expansion tube (2) is correspondingly sleeved outside the first bolt core (1); a first groove (3) is formed on the side of the first bolt core (1) along the normal direction; a limiting rod (4) is provided on the inner side of the first expansion tube (2); the limiting rod (4) is slidably arranged in the first groove (3); one end of the limiting rod (4) is fixedly connected to the inner wall of the first expansion tube (2); and a locking nut (5) is threadedly connected to the bolt tail of the first bolt core (1).

2. A building exterior wall insulation anchor structure according to claim 1, characterized in that: A second bolt core (6) is coaxially arranged on the outer side of the bolt head of the first bolt core (1); a second expansion tube (7) is correspondingly sleeved on the outer side of the second bolt core (6); the bolt head of the first bolt core (1) and the bolt tail of the second bolt core (6) are connected via a pull rod (8); a second groove (9) is correspondingly opened on the side of the second bolt core (6) along the normal direction; the limiting rod (4) slides along the normal direction to penetrate the bolt head of the first bolt core (1); the limiting rod (4) slides and extends into the second groove (9) and is fixedly connected to the inner wall of the second expansion tube (7).

3. A building exterior wall insulation anchor structure according to claim 2, characterized in that: The pull rod (8) is covered with a buffer rubber sleeve (10) on the outside; the two ends of the buffer rubber sleeve (10) are respectively connected to the first bolt core (1) and the second bolt core (6); and the limiting rod (4) passes through the inside of the buffer rubber sleeve (10).

4. The building exterior wall thermal insulation anchor structure according to claim 1, characterized in that: An inner retaining ring (11) is sleeved and fixed to the tail of the first expansion tube (2); an outer retaining ring (12) is provided between the inner retaining ring (11) and the locking nut (5) and is slidably sleeved on the first bolt core (1).

5. The building exterior wall thermal insulation anchor structure according to claim 4, characterized in that: A through hole (14) for passing the steel rope (13) is formed on the side of the outer retaining ring (12).

6. A thermal insulation exterior wall, characterized in that: It comprises a thermal insulation board (15) laid on the outer wall of a building, wherein the thermal insulation board (15) is fixedly connected to the outer wall of the building via the anchor structure according to any one of claims 1 to 5.

Images