Anchor bolt and wall thermal insulation structure

Abstract

The utility model discloses an anchor bolt and a wall insulation structure. The retaining sleeve is connected with the second end of the anchor bolt column core, and a limiting and thrust structure is formed at the second end of the anchor bolt column core, so that the anchor bolt cannot be pulled out from concrete, the tensile strength of the anchor bolt column core can be effectively enhanced, and the connection strength of a heat preservation plate and the concrete and the service life of a whole heat preservation wall are guaranteed; therefore, the safety and the reliability of construction are ensured. The organic material sleeve is arranged on the anchor bolt, so that the overall anti-aging performance of the anchor bolt can be enhanced, the service life of the anchor bolt can be prolonged, the effect of blocking a heat bridge is achieved, the anchor bolt body is effectively protected, and the service life of the anchor bolt is prolonged. In the wall insulation structure, the insulation board is fixedly connected with the concrete structure through the anchor bolt, so that the connection strength of the insulation board and the concrete can be enhanced, and the service life of the whole insulation wall and the construction safety and reliability are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of building wall insulation, in particular to an anchor bolt suitable for fixing insulation plates in a wall insulation structure and a wall insulation structure. Background Art

[0002] The integrated system of wall insulation structure in the construction field has certain requirements for its service life and tensile strength. In the current building wall insulation structure, pure organic material anchor bolts are used to fix the insulation board. The pure organic material anchor bolts are in the form of integral injection molding. Due to the lack of thrust structure, the pure organic material anchor bolts are easily pulled out in the concrete, and the tensile strength is low, thereby reducing the reliability and service life of the building wall insulation structure. Utility Model Content

[0003] The purpose of the utility model is to provide a new anchor bolt suitable for fixing insulation boards in wall insulation structures and a wall insulation structure. The new anchor bolt has a thrust structure, which is intended to enhance its tensile strength, ensure the connection strength between the insulation board and concrete and the service life of the entire insulation wall, and ensure the safety and reliability of construction, so as to solve the problem that the tensile strength of the above-mentioned existing pure organic material anchor bolts is low and they are easily pulled out in the concrete, thereby reducing the reliability and service life of the building wall insulation structure.

[0004] To achieve the above purpose, the utility model provides the following solutions:

[0005] The utility model provides an anchor bolt, comprising:

[0006] An anchor body, comprising an anchor column core and an anchor end plate connected to a first end of the anchor column core;

[0007] The anti-retraction sleeve is used to be sleeved on the second end of the anchor column core to prevent the anchor body from being pulled out in the concrete.

[0008] Preferably, the anti-retraction sleeve is a stainless steel anti-retraction sleeve.

[0009] Preferably, the anchor bolt further comprises an organic material sleeve covering the first end of the anchor bolt column core and the outside of the anchor bolt end plate.

[0010] Preferably, the organic material sleeve is an organic polymer material sleeve integrally cast on the first end of the anchor column core and the outside of the anchor end plate.

[0011] Preferably, the organic polymer material sleeve is a polypropylene sleeve, a polyethylene sleeve or a polyamide sleeve.

[0012] Preferably, the outer wall of the portion of the organic material sleeve covering the outside of the first end of the anchor column core is provided with barbs, and the barbs are inclined toward the anchor end plate.

[0013] Preferably, the barbs are integrally formed with the organic material sleeve.

[0014] Preferably, the anti-retraction sleeve is detachably connected to the second end of the anchor bolt column core.

[0015] Preferably, the second end of the anchor column core is provided with an external thread for threaded connection with the anti-retraction sleeve.

[0016] Preferably, the anchor column core is a stainless steel cylinder, the anchor end plate is a stainless steel disc coaxial with the stainless steel cylinder, and the stainless steel cylinder and the stainless steel disc are welded or riveted.

[0017] Preferably, the stainless steel cylinder is an austenitic stainless steel cylinder of type S304 or S316.

[0018] Preferably, the diameter of the stainless steel disc is not less than 80 mm, and the thickness of the tail disc is not less than 1.5 mm.

[0019] The utility model also provides a wall insulation structure, comprising a concrete structure and an insulation board, wherein the insulation board is fixedly connected to the concrete structure by any one of the anchor bolts described above.

[0020] Compared with the prior art, the utility model has achieved the following technical effects:

[0021] The anchor bolt proposed by the utility model has a novel and reasonable structure. By configuring a withdrawal prevention sleeve for the second end of the anchor bolt column core, after the second end of the anchor bolt column core passes through the thermal insulation board and the concrete structure, it is connected to the second end of the anchor bolt column core through the withdrawal prevention sleeve, and a limit thrust structure is formed at the second end of the anchor bolt column core, so that the anchor bolt cannot be pulled out in the concrete, and the tensile strength of the anchor bolt column core can be effectively enhanced, ensuring the connection strength between the thermal insulation board and the concrete and the service life of the entire thermal insulation wall, thereby ensuring the safety and reliability of the construction, and solving the problem that the existing pure organic material anchor bolts have low tensile strength and are easy to be pulled out in the concrete, thereby reducing the reliability and service life of the building wall thermal insulation structure.

[0022] In some technical solutions disclosed in the utility model, considering that the existing pure organic material anchor bolt is a single plastic structure, has poor anti-aging performance, short service life, and great safety hazards, the utility model also sets an organic material sleeve on the anchor bolt, which is coated on the first end of the anchor bolt column core and the outside of the anchor bolt end plate, thereby realizing the composite of the organic material sleeve and the stainless steel anchor bolt body, thereby enhancing the overall anti-aging performance and service life of the anchor bolt, ensuring the connection strength between the insulation board and the concrete and the service life of the entire insulation wall, and ensuring the safety and reliability of the construction, thereby overcoming the existing pure organic material anchor bolt The single plastic has poor anti-aging performance, short service life, and great safety hazards. At the same time, the organic material sleeve can also be used as a heat-insulating protective sleeve to block the thermal bridge, thereby effectively protecting the anchor bolt body and extending the service life of the anchor bolt.

[0023] The wall insulation structure proposed by the utility model includes a concrete structure and an insulation board. The insulation board is fixedly connected to the concrete structure by the aforementioned anchor bolts, which can enhance the connection strength between the insulation board and the concrete, thereby ensuring the service life of the entire insulation wall and the safety and reliability of the construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 This is a schematic diagram of the overall structure of the anchor bolt disclosed in the embodiment of the utility model.

[0026] In the figure, the reference numerals are:

[0027] 100. Anchor bolt;

[0028] 1. Anchor bolt core; 11. External thread;

[0029] 2. Anchor bolt end plate;

[0030] 3. Stop sleeve;

[0031] 4. Organic material casing; 41. Barb. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] One of the purposes of the utility model is to provide a new type of anchor bolt suitable for fixing insulation boards in wall insulation structures. The new type of anchor bolt has a thrust structure, which is intended to enhance its tensile strength, ensure the connection strength between the insulation board and concrete and the service life of the entire insulation wall, and ensure the safety and reliability of construction, so as to solve the problem that the tensile strength of the above-mentioned existing pure organic material anchor bolts is low and they are easily pulled out in the concrete, thereby reducing the reliability and service life of the building wall insulation structure.

[0034] Another object of the utility model is to provide a wall insulation structure using the above-mentioned new anchor bolts to fix the insulation board.

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0036] Embodiment 1

[0037] like Figure 1 As shown, this embodiment provides a new type of anchor 100 suitable for fixing insulation panels in wall insulation structures, which includes an anchor body and a back-stop sleeve 3. The anchor body includes an anchor column core 1 and an anchor end plate 2 connected to the first end of the anchor column core 1; the back-stop sleeve 3 is used to be sleeved on the second end of the anchor column core 1 to prevent the anchor body from being pulled out in the concrete. The novel anchor bolt 100, by configuring a retaining sleeve 3 at the second end of the anchor bolt column core 1, can be connected to the second end of the anchor bolt column core 1 through the retaining sleeve 3 after the second end of the anchor bolt column core 1 passes through the insulation board and the concrete structure, and a limit thrust structure is formed at the second end of the anchor bolt column core 1, so that the anchor bolt cannot be pulled out in the concrete, which can effectively enhance the tensile strength of the anchor bolt column core 1, ensure the connection strength between the insulation board and the concrete and the service life of the entire insulation wall, thereby ensuring the safety and reliability of the construction, and solving the problem that the existing pure organic material anchor bolts have low tensile strength and are easily pulled out in the concrete, thereby reducing the reliability and service life of the building wall insulation structure.

[0038] In this embodiment, the anchor column core 1 is preferably a stainless steel cylinder, and the anchor end plate 2 is preferably a stainless steel disc coaxial with the stainless steel cylinder, and the stainless steel cylinder and the stainless steel disc are welded or riveted. The stainless steel disc can be provided with a hollow hole according to the use requirements.

[0039] In this embodiment, the anti-retraction sleeve 3 is in a separate state from the second end of the anchor column core 1 before use. After the anchor column core 1 is installed in place, the anti-retraction sleeve 3 is connected to the second end of the anchor column core 1. The connection method at this time can be non-detachable welding, interference fit, etc., or it can be a detachable threaded connection or mortise and tenon connection. Among them, it is preferred that the anti-retraction sleeve 3 is threadedly connected to the second end of the anchor column core 1, that is, an external thread 11 is provided at the second end of the anchor column core 1, and an internal thread matching the external thread 11 is provided in the inner hole of the anti-retraction sleeve 3. The anti-retraction sleeve 3 is fixedly connected to the second end of the anchor column core 1 through the threaded cooperation between its internal thread and the external thread 11. The threaded connection method is convenient for disassembly and assembly, and the threaded connection has a certain self-locking property, which can ensure the connection strength and connection reliability of the anti-retraction sleeve 3 when connected to the anchor column core 1.

[0040] In this embodiment, the aforementioned anti-retraction sleeve 3 is preferably a stainless steel anti-retraction sleeve, and its outer wall profile can be a cylindrical structure such as a prism. When installed, the anti-retraction sleeve 3 is coaxially connected with the anchor column core 1. Taking the anti-retraction sleeve 3 as a cylindrical sleeve as an example, its outer diameter should be larger than the outer diameter of the anchor column core 1 to ensure its blocking and limiting effect on the second end of the anchor column core 1.

[0041] Taking into account that the existing pure organic material anchor bolts are of a single plastic structure, have poor anti-aging performance, a short service life, and great safety hazards, the present embodiment further provides an organic material sleeve 4 on the above-mentioned stainless steel anchor bolt 100, which is coated on the first end of the anchor bolt column core 1 and the outside of the anchor bolt end plate 2, thereby achieving the composite of the organic material sleeve 4 and the stainless steel anchor bolt body, thereby enhancing the overall anti-aging performance and service life of the anchor bolt, ensuring the connection strength between the insulation board and the concrete and the service life of the entire insulation wall, and ensuring the safety and reliability of the construction, thereby overcoming the problems of the existing pure organic material anchor bolts, such as poor anti-aging performance of a single plastic, short service life, and great safety hazards.

[0042] In this embodiment, the organic material sleeve 4 is preferably an organic polymer material sleeve formed by external casting on the first end of the anchor column core 1 and the anchor end plate 2, and the organic polymer material sleeve is arranged in close contact with the outer surface of the first end of the anchor column core 1 and the anchor end plate 2. , so as to be connected with the anchor body to form a whole. The organic material sleeve 4 is formed by external casting on the first end of the anchor column core 1 and the outside of the anchor end plate 2, which can also play a role in blocking thermal bridges. The so-called "thermal bridge", in layman's terms, is the path that is most likely to conduct heat. These parts have strong heat transfer capacity, dense heat flow, and low inner surface temperature, so they are called thermal bridges. To cut off the thermal bridge, heat insulation (or low thermal conductivity) materials are added to these parts to cut off these thermal bridges. Since the inner surface temperature of the thermal bridge part is low, during the cold winter, when the temperature there is lower than the dew point temperature, water vapor will condense on its surface to form condensation. After that, dust in the air is easily stained, gradually turning black, and thus growing mold and mildew. The parts with serious thermal bridges may even drip water in the cold winter, which is irreversible to the damage of building insulation. Therefore, the organic material sleeve 4 is also a heat insulation protective sleeve, which can effectively protect the anchor bolt body and prolong the service life of the anchor bolt.

[0043] In this embodiment, the material of the organic polymer material sleeve includes but is not limited to polypropylene, polyethylene and polyamide. The organic polymer material sleeve adopts polymer materials such as polypropylene, polyethylene, polyamide, etc., which can not only isolate thermal bridges, but also be acid-resistant, alkali-resistant and corrosion-resistant, greatly improving the service life of building materials.

[0044] In this embodiment, the outer wall of the portion of the aforementioned organic material sleeve 4 covering the outside of the first end of the anchor column core 1 is preferably further provided with barbs 41, and the barbs 41 are inclined toward the anchor end plate 2. The barbs 41 can further improve the tensile strength of the anchor 100. The barbs 41 are preferably integrally formed with the organic material sleeve 4. The organic material sleeve 4 can be provided with multiple rows of barbs 41 around the circumference of the anchor column core 1, and any row of barbs 41 includes multiple barbs 41 arranged along the axial direction of the anchor column core 1.

[0045] In this embodiment, in order to effectively ensure the performance of the anchor 100 , the axial covering length of the organic material sleeve 4 on the first end of the anchor column core 1 preferably occupies 1 / 3 to 1 / 5 of the total axial length of the anchor column core 1 .

[0046] The anchor bolt 100 proposed in this embodiment is applied to the field of building wall insulation, aiming to enhance the connection strength between the insulation board and the concrete, ensure the service life of the entire insulation wall, and ensure the safety and reliability of the construction. When in use, the anchor bolt body is threadedly connected to the stop sleeve, which can be used to fasten the connection in the current prefabricated building exterior wall insulation structure integrated system and other related building insulation systems. Not only is the connection reliable without safety hazards, but the anchor bolt cannot be pulled out in the concrete, which greatly improves the tensile strength of the anchor bolt.

[0047] In addition, the anchor body is welded or riveted with a stainless steel cylinder and a stainless steel disc, and then covered with a cast organic material sleeve, which can ensure that the organic material sleeve is tightly and firmly connected to the anchor body, while improving the structural strength of the anchor, so that the anchor can withstand great tensile strength, thereby greatly improving the bonding strength between the insulation board and the concrete.

[0048] The anchor bolt 100 has a simple structure, is easy to process and has a low cost, and is suitable for mass production in factories and for use in large quantities during construction.

[0049] Embodiment 2

[0050] Based on the first embodiment, this embodiment further discloses that the stainless steel cylinder is preferably an austenitic stainless steel cylinder of type S304 or S316. The material is highly resistant to acid, alkali and atmospheric corrosion.

[0051] Embodiment 3

[0052] Based on the first or second embodiment, this embodiment further discloses that the diameter of the stainless steel disc is not less than 80 mm, and the thickness of the tail disc is not less than 1.5 mm.

[0053] Embodiment 4

[0054] This embodiment proposes a wall insulation structure, including a concrete structure and an insulation board. The insulation board is fixedly connected to the concrete structure by the anchor bolt 100 disclosed in any one of embodiments one to three, which can enhance the connection strength between the insulation board and the concrete, thereby ensuring the service life of the entire insulation wall and the safety and reliability of the construction.

[0055] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. An anchor bolt, characterized in that: include: An anchor body, comprising an anchor column core (1) and an anchor end plate (2) connected to a first end of the anchor column core (1); A withdrawal prevention sleeve (3) is used for being sleeved on the second end of the anchor column core (1) to prevent the anchor body from being pulled out in the concrete.

2. The anchor bolt according to claim 1, characterized in that: It also comprises an organic material sleeve (4) covering the first end of the anchor column core (1) and the outside of the anchor end plate (2).

3. The anchor bolt according to claim 2, characterized in that: The organic material sleeve (4) is an organic polymer material sleeve that is integrally cast on the first end of the anchor column core (1) and the outside of the anchor end plate (2).

4. The anchor bolt according to claim 3, characterized in that: The organic polymer material sleeve is a polypropylene sleeve, a polyethylene sleeve or a polyamide sleeve.

5. The anchor bolt according to claim 2, characterized in that: The outer wall of the portion of the organic material sleeve (4) covering the outside of the first end of the anchor column core (1) is provided with barbs (41), and the barbs (41) are inclined toward the anchor end plate (2).

6. The anchor bolt according to claim 5, characterized in that: The barbs (41) are integrally formed with the organic material sleeve (4).

7. The anchor bolt according to any one of claims 1 to 6, characterized in that: The anti-retraction sleeve (3) is detachably connected to the second end of the anchor column core (1).

8. The anchor bolt according to claim 7, characterized in that: The second end of the anchor column core (1) is provided with an external thread (11) for threaded connection with the anti-retraction sleeve (3).

9. The anchor bolt according to any one of claims 1 to 6, characterized in that: The anchor bolt column core (1) is a stainless steel cylinder, the anchor bolt end plate (2) is a stainless steel disc coaxial with the stainless steel cylinder, and the stainless steel cylinder and the stainless steel disc are welded or riveted.

10. A wall insulation structure, characterized in that: It comprises a concrete structure and a thermal insulation board, wherein the thermal insulation board is fixedly connected to the concrete structure via an anchor bolt (100) according to any one of claims 1 to 9.

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