Thermal insulation composite board outer wall fixing anchor bolt gasket

Abstract

The utility model relates to a heat preservation composite board outer wall fixing anchor bolt gasket which comprises a screw rod, an expansion sleeve and an auxiliary sleeve, the expansion sleeve is arranged on the outer wall of the screw rod, and the outer wall of the expansion sleeve is sleeved with the auxiliary sleeve and detachably connected with the auxiliary sleeve; one end of the screw rod gradually expands outwards to form a conical bolt head, the other end of the screw rod is provided with a gasket and a nut, the expansion sleeve is located on the outer wall of the screw rod between the bolt head and the gasket, an expansion seat is arranged at the end, close to the bolt head, of the expansion sleeve, and a plurality of through grooves extending in the axial direction of the expansion seat are formed in the expansion seat. The auxiliary sleeve is arranged on the outer wall of the expansion sleeve, when a drilled hole is too large, the contact area between the anchor bolt and the hole wall can be increased through the auxiliary sleeve, re-drilling is not needed, damage to a base layer wall caused by re-drilling near the original anchor bolt position is avoided, and therefore the stability of the anchor bolt is improved; and the time and labor cost for re-drilling are saved, and the mounting efficiency is improved.

Description

An anchor pad for fixing thermal insulation composite panels to exterior walls Technical Field

[0001] This utility model belongs to the field of anchor bolt fastener technology, and in particular relates to an anchor bolt gasket for fixing thermal insulation composite panel exterior walls. Background Technology

[0002] Thermal insulation composite panels are mainly fixed to the exterior wall by anchor bolts. In the construction of thermal insulation composite panel exterior walls, the structure and installation of fixing anchor bolts and gaskets are crucial and directly affect the safety and durability of the thermal insulation system.

[0003] Precise drilling is a crucial step in ensuring the anchor's stability during installation. However, if the hole diameter is too large, the friction between the anchor and the hole wall will be significantly reduced, making the anchor prone to loosening after installation. Construction workers often resort to re-drilling near the original anchor location as a remedial measure. However, re-drilling may weaken the structural strength of the base wall, thus affecting the stability and safety of the entire structure. Summary of the Invention

[0004] The purpose of this utility model is to provide a fixing anchor pad for thermal insulation composite panels on the exterior wall, so as to solve the technical problems mentioned in the background art.

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

[0006] An external wall fixing anchor gasket for thermal insulation composite panel includes: a screw rod, an expansion sleeve, and an auxiliary sleeve. The expansion sleeve is disposed on the outer wall of the screw rod, and the auxiliary sleeve is sleeved on the outer wall of the expansion sleeve and detachably connected to the auxiliary sleeve.

[0007] One end of the screw gradually expands outward to form a tapered plug head, and the other end of the screw is provided with a washer and a nut. The expansion sleeve is located on the outer wall of the screw between the plug head and the washer. The expansion sleeve is provided with an expansion seat at the end near the plug head, and the expansion seat is provided with a plurality of through grooves extending along its axial direction.

[0008] As a further improvement of this utility model, both ends of the outer wall of the expansion sleeve are provided with external threads, and the inner wall of the auxiliary sleeve is provided with internal threads that mesh with the external threads.

[0009] As a further improvement of this utility model, the expansion seat is conical, with the diameter of the end near the plug head being larger than the diameter of the other end.

[0010] As a further improvement of this utility model, the gasket is provided with multiple reinforcing ribs on the side near the expansion sleeve.

[0011] As a further improvement of this utility model, multiple reinforcing ribs are arranged circumferentially and radially distributed on the gasket, with one end of each reinforcing rib extending radially from the position in contact with the auxiliary sleeve towards the edge of the gasket.

[0012] As a further improvement of this utility model, the diameter of the wider end of the expansion seat is smaller than the diameter of the wider end of the plug head.

[0013] The beneficial effects of adopting the above technical solution are as follows:

[0014] This invention features an auxiliary sleeve on the outer wall of the expansion sleeve. When the drilled hole is too large, the auxiliary sleeve can increase the contact area between the anchor bolt and the hole wall, thereby improving the stability of the anchor bolt, enhancing the anchoring effect, and ensuring that the anchor bolt can withstand greater tension and pressure. This eliminates the need for re-drilling, thus avoiding damage to the base wall caused by re-drilling near the original anchor bolt location and effectively protecting the structural strength of the wall. Furthermore, it saves time and labor costs associated with re-drilling and improves installation efficiency.

[0015] The auxiliary sleeve and expansion sleeve are detachably connected. The appropriate auxiliary sleeve and expansion sleeve can be selected according to the size of the drill hole and used after connection. It is suitable for drill holes of different diameters. It is also easy to install and remove. When damaged, only the damaged part needs to be replaced, reducing material waste. Attached Figure Description

[0016] Figure 1 is a three-dimensional structural diagram of this utility model;

[0017] Figure 2 is a three-dimensional structural schematic diagram of this utility model from another angle;

[0018] Figure 3 is an enlarged view of section A in Figure 2 of this utility model;

[0019] Figure 4 is a schematic diagram of the structure of this utility model without the auxiliary sleeve;

[0020] The markings in the diagram are as follows: 1. Screw, 2. Expansion sleeve, 3. Auxiliary sleeve, 4. Bolt head, 5. Washer, 6. Nut, 7. Expansion seat, 8. Through groove, 9. External thread, 10. Reinforcing rib. Detailed Implementation

[0021] To better understand the purpose, structure, and function of this utility model, a clear and complete description of this utility model will be provided below in conjunction with the accompanying drawings.

[0022] As shown in Figures 1-4, a type of external wall anchoring gasket for thermal insulation composite panels includes: a screw 1, an expansion sleeve 2, and an auxiliary sleeve 3. The expansion sleeve 2 is disposed on the outer wall of the screw 1, and the auxiliary sleeve 3 is fitted onto the outer wall of the expansion sleeve 2 and detachably connected to the auxiliary sleeve 3. The auxiliary sleeve 3 is used to enlarge the outer diameter to adapt to the drilled hole. When the drilled hole is too large, the auxiliary sleeve 3 can increase the contact area between the anchor and the hole wall, thereby improving the stability of the anchor and enhancing the anchoring effect without the need for re-drilling, thus ensuring the structural strength of the wall.

[0023] In this embodiment, both ends of the outer wall of the expansion sleeve 2 are provided with external threads 9, and the inner wall of the auxiliary sleeve 3 is provided with internal threads that mesh with the external threads 9. The meshing of the threads achieves the purpose of detachable connection between the auxiliary sleeve 3 and the expansion sleeve 2, and the relative displacement between the auxiliary sleeve 3 and the expansion sleeve 2 can be adjusted.

[0024] One end of the screw 1 gradually expands outward to form a tapered bolt head 4. The other end of the screw 1 is provided with a washer 5 and a nut 6. The expansion sleeve 2 is located on the outer wall of the screw 1 between the bolt head 4 and the washer 5. The expansion sleeve 2 is provided with an expansion seat 7 at the end near the bolt head 4. The expansion seat 7 is provided with multiple through grooves 8 extending axially. An external thread 9 is provided on the outer wall of the expansion sleeve 2 at the upper part of the expansion seat 7. Further, the expansion seat 7 is tapered, and the diameter of the end near the bolt head 4 is larger than the diameter of the other end. Taking the direction shown in Figure 1 as a reference, that is, the diameter of the lower part of the expansion seat 7 is larger than the diameter of the upper part. To ensure the fastening effect of the anchor bolt, the diameter of the wider end of the expansion seat 7 is smaller than the diameter of the wider end of the bolt head 4, that is, the diameter of the lower part of the expansion seat 7 is smaller than the diameter of the lower part of the bolt head 4.

[0025] In this embodiment, the gasket 5 has multiple reinforcing ribs 10 on the side near the expansion sleeve 2. This serves two purposes: firstly, it adapts to uneven surfaces of the insulation composite board, ensuring uniform preload of the anchor bolts; secondly, it increases friction between the gasket 5 and the insulation composite board, preventing the gasket 5 from shifting under vibration or wind loads and affecting the anchoring effect. Furthermore, the multiple reinforcing ribs 10 are circumferentially arranged and radially distributed on the gasket 5. One end of each reinforcing rib 10 extends radially from its contact point with the auxiliary sleeve 3 towards the edge of the gasket 5, sharing the pressure at the center of the gasket 5.

[0026] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A type of anchor gasket for fixing thermal insulation composite panels to exterior walls, characterized in that: It includes: The screw (1), expansion sleeve (2) and auxiliary sleeve (3) are provided. The expansion sleeve (2) is provided on the outer wall of the screw (1), and the auxiliary sleeve (3) is fitted on the outer wall of the expansion sleeve (2) and is detachably connected to the auxiliary sleeve (3). One end of the screw (1) gradually expands outward to form a conical bolt head (4), and the other end of the screw (1) is provided with a washer (5) and a nut (6). The expansion sleeve (2) is located on the outer wall of the screw (1) between the bolt head (4) and the washer (5). An expansion seat (7) is provided on the end of the expansion sleeve (2) near the bolt head (4), and the expansion seat (7) is provided with a plurality of through grooves (8) extending along its axial direction.

2. The type of external wall fixing anchor gasket for thermal insulation composite panels according to claim 1, characterized in that: The expansion sleeve (2) has external threads (9) on both ends of its outer wall, and the auxiliary sleeve (3) has internal threads that mesh with the external threads (9) on its inner wall.

3. The type of external wall fixing anchor gasket for thermal insulation composite panels according to claim 1, characterized in that: The expansion seat (7) is conical, with the diameter of one end near the plug head (4) being larger than the diameter of the other end.

4. The type of external wall fixing anchor gasket for thermal insulation composite panels according to claim 1, characterized in that: The gasket (5) has multiple reinforcing ribs (10) on the side near the expansion sleeve (2).

5. The type of anchor gasket for fixing thermal insulation composite panels to external walls according to claim 4, characterized in that: Multiple reinforcing ribs (10) are arranged circumferentially and radially distributed on the gasket (5), with one end of each reinforcing rib (10) extending radially from the position in contact with the auxiliary sleeve (3) toward the edge of the gasket (5).

6. The type of external wall fixing anchor gasket for thermal insulation composite panels according to claim 3, characterized in that: The diameter of the wider end of the expansion seat (7) is smaller than the diameter of the wider end of the plug head (4).

Images