A replaceable anchor bolt structure without bottom nut

By incorporating protective and containment structures within the anchor bolt configuration, the anchor bolts are separated from the concrete, solving the challenges of anchor bolt removal and replacement and improving the convenience and economy of construction.

CN114892825BActive Publication Date: 2026-04-03HANCHENG TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-04-27
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

The existing anchor bolts are fixed at the bottom with nuts. After the concrete pouring is completed, both the nuts and the bottom of the anchor bolt structure are fixed to the concrete, making it difficult to remove and replace the anchor bolts, resulting in property damage.

Method used

A replaceable anchor bolt structure without a bottom nut is designed. A protective structure is set on the outer periphery of the anchor bolt body, and a receiving structure is set on the lower anchor plate. The second connecting section is located inside the receiving structure and is detachably connected to the connecting structure, avoiding contact between the anchor bolt and the concrete, and realizing top removal and replacement.

Benefits of technology

It simplifies the process of removing and replacing anchor bolts, saves manpower and resources, reduces construction difficulty and cost, and improves the convenience and efficiency of replacement.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention provides a replaceable anchor bolt structure without a bottom nut, relating to the field of building construction technology. It addresses the technical problem that current anchor bolts are fixed at the bottom with nuts, making removal and replacement difficult after concrete pouring. Furthermore, it poses a significant risk of property damage due to the inability to disassemble and install new anchor bolts. The device includes an upper anchor plate and a lower anchor plate located below it. Multiple anchor bolts are connected to the upper and lower anchor plates. Each anchor bolt includes a main body and a first connecting section and a second connecting section located at both ends of the main body. A protective structure is provided around the outer periphery of the main body. The first connecting section extends from the upper anchor plate and is fixed by fasteners. The lower anchor plate has a receiving structure, within which a connecting structure is located. The second connecting section is located within the receiving structure and detachably connected to the connecting structure. This invention improves upon the difficulty of anchor bolt removal and replacement.
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Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to a replaceable anchor bolt structure that eliminates the need for a bottom nut. Background Technology

[0002] Anchor bolt structures are among the most commonly used structures in the construction industry. They often work in conjunction with concrete foundations to bear the weight and load of machinery, ensuring its smooth and normal operation. Therefore, anchor bolt structures play a crucial role in the overall building structure and the operation of machinery. The failure of a single anchor bolt can render the entire building system unusable, causing severe property damage. Increasing the strength of the anchor bolts themselves can help reduce the problem of anchor bolt failure, but it cannot completely eliminate the possibility of failure and will significantly increase costs. Therefore, it is essential to be able to remove and replace the failed anchor bolt with a new one when it fails.

[0003] The applicant has discovered that the prior art has at least the following technical problems:

[0004] Currently, the bottom of the anchor bolt is fixed with a nut. After the concrete is poured, both the nut and the bottom of the anchor bolt structure are fixed to the concrete. It is difficult to remove or replace the anchor bolt. When it is necessary to remove and install a new anchor bolt, it is impossible to operate, which can easily cause huge property damage. Summary of the Invention

[0005] The purpose of this invention is to provide a replaceable anchor bolt structure without a bottom nut, solving the technical problem that existing anchor bolts are fixed at the bottom with nuts. After pouring concrete, both the nut and the bottom of the anchor bolt structure are fixed to the concrete, making removal and replacement difficult. Furthermore, when it is necessary to disassemble and install a new anchor bolt, it is impossible to operate, easily leading to significant property damage. The numerous technical effects of the preferred technical solutions provided by this invention are detailed below.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] This invention provides a replaceable anchor bolt structure without a bottom nut, comprising an upper anchor plate, a lower anchor plate, and an anchor bolt, wherein:

[0008] The lower anchor plate is disposed below the upper anchor plate, and the anchor bolts are configured to include multiple bolts, which connect the upper anchor plate and the lower anchor plate.

[0009] The anchor bolt includes a main body and a first connecting section and a second connecting section respectively disposed at both ends of the main body. A protective structure is provided on the outer periphery of the main body. The first connecting section extends out of the upper anchor plate and is fixed by fasteners. A receiving structure is provided on the lower anchor plate. A connecting structure is provided inside the receiving structure. The second connecting section is located inside the receiving structure and is detachably connected to the connecting structure.

[0010] Preferably, the device further includes a connector, which is fixedly installed within the accommodating structure, and the connecting structure is disposed on the connector for detachable connection with the second connecting segment.

[0011] Preferably, the accommodating structure is disposed within the lower anchor plate, and the bottom of the accommodating structure is not connected to the outside.

[0012] Preferably, the structure further includes a barrier, wherein the bottom of the accommodating structure is configured to communicate with the outside, and the barrier is disposed at the bottom of the accommodating structure.

[0013] Preferably, the protective structure is made of PE pipe.

[0014] Preferably, both the first connecting segment and the second connecting segment are configured to include an external thread structure, and the connecting structure includes an internal thread structure that mates with the external thread structure.

[0015] Preferably, both the upper anchor plate and the lower anchor plate adopt an annular structure, and the anchor bolts are evenly distributed along the annular structure.

[0016] Preferably, the upper anchor plate is provided with two concentric circles, and through holes are evenly distributed on each circle; the lower anchor plate is provided with two concentric circles, and receiving structures are evenly distributed on each circle; the receiving structures are provided in correspondence with the through holes.

[0017] Preferably, the connector is a nut.

[0018] This invention provides a replaceable anchor bolt structure without a bottom nut. By setting a protective structure on the outer periphery of the anchor bolt body, and setting a receiving structure on the lower anchor plate, a connecting structure is set inside the receiving structure. The second connecting section is located inside the receiving structure and is detachably connected to the connecting structure, which ensures that there is no contact between the bottom anchor bolt and the concrete. With the protective structure on the outer periphery of the body, when the anchor bolt fails or encounters other problems and needs to be replaced, the anchor bolt can be directly removed from the top for replacement. The construction is simple, the operation is convenient, and a lot of manpower and material resources are saved, while meeting the usage requirements. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1This is a schematic diagram of the replaceable anchor bolt structure without bottom nut of the present invention in use;

[0021] Figure 2 Yes, yes Figure 1 A partial sectional view;

[0022] Figure 3 This is a partial cross-sectional view of the lower anchor plate in Embodiment 1 of the replaceable anchor bolt structure without bottom nut of the present invention.

[0023] Figure 4 This is a top view of the upper anchor plate in the replaceable anchor bolt structure without bottom nut of the present invention.

[0024] Figure 5 This is a partial cross-sectional view of the lower anchor plate in Embodiment 2 of the replaceable anchor bolt structure without bottom nut of the present invention.

[0025] Figure 6 This is a partial cross-sectional view of the lower anchor plate in Embodiment 3 of the replaceable anchor bolt structure without bottom nut of the present invention.

[0026] In the diagram: 11. Upper anchor plate; 110. Through hole structure; 12. Lower anchor plate; 120. Connection structure; 121. Accommodation structure; 2. Anchor bolt; 20. Main body; 201. Protective structure; 21. First connecting section; 22. Second connecting section; 3. Fastener; 4. Sleeve flange; 5. Connecting piece; 6. Barrier piece. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0028] In the description of this invention, it should be understood that the terms "center," "side," "length," "width," "height," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and "side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0029] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0030] Example 1:

[0031] This invention provides a replaceable anchor bolt structure that eliminates the need for a bottom nut. Figure 1 This is a schematic diagram of the structure used in this embodiment, as shown below. Figure 1 As shown, it includes an upper anchor plate 11, a lower anchor plate 12, and anchor bolts 2. The lower anchor plate 12 is located below the upper anchor plate 11, and multiple anchor bolts 2 are provided to connect the upper anchor plate 11 and the lower anchor plate 12.

[0032] in, Figure 2 yes Figure 1 A partial sectional view, such as Figure 2 As shown, the anchor bolt 2 includes a main body 20 and a first connecting section 21 and a second connecting section 22 respectively disposed at both ends of the main body 20. A protective structure 201 is provided on the outer periphery of the main body 20. The first connecting section 21 extends out of the upper anchor plate 11 and is fixed by a fastener 3. In this embodiment, the fastener 3 is a nut. The first connecting section 21 extends out of the upper anchor plate 11, passes through the sleeve flange 4, and is fixed by a top nut. The first connecting section 21 extends out of the top nut and is exposed.

[0033] Figure 3 This is a partial cross-sectional view of the lower anchor plate in this embodiment, as shown below. Figure 3 As shown, a receiving structure 121 is provided on the lower anchor plate 12, and a connecting structure 120 is provided inside the receiving structure 121. The second connecting section 22 is located inside the receiving structure 121 and is detachably connected to the connecting structure 120. By providing a receiving structure 121 on the lower anchor plate 12, the second connecting section 22 can be directly connected to the lower anchor plate 12 during use, thereby eliminating the need for a bottom nut. During construction, the bottom of the anchor bolt 2 is prevented from contacting the concrete, thus solving the problem of inconvenient anchor bolt replacement in the prior art.

[0034] This replaceable anchor bolt structure without a bottom nut features a protective structure 201 around the outer periphery of the anchor bolt body 20, a receiving structure 121 on the lower anchor plate 12, and a connecting structure 120 within the receiving structure 121. The second connecting section 22 is located within the receiving structure 121 and is detachably connected to the connecting structure 120. This ensures that the bottom anchor bolt has no contact with the concrete. With the protective structure 201 around the outer periphery of the body 20, when the anchor bolt fails or encounters other problems requiring replacement, it can be directly removed from the top for replacement. The construction is simple, the operation is convenient, and it saves a lot of manpower and resources while meeting the usage requirements.

[0035] As an optional implementation, the receiving structure 121 is disposed within the lower anchor plate 12, and the bottom of the receiving structure 121 is not connected to the outside, that is, the bottom of the anchor bolt 2 is located inside the lower anchor plate 12, ensuring that the bottom of the anchor bolt 2 is not in contact with the concrete after pouring, so that the anchor bolt is still easy to disassemble and replace after pouring concrete, avoiding the problem of the existing technology where the anchor bolt 2 protrudes from the lower anchor plate 12 and is connected by a nut, and the anchor bolt 2 is fixed and cannot be replaced after pouring concrete.

[0036] As an optional implementation, in this embodiment, the protective structure 201 is made of PE pipe. The PE pipe serves to isolate the anchor bolt 2 from the concrete, while also providing corrosion protection for the anchor bolt 2 inside the protective structure 201, which can effectively improve the service life of the overall anchor bolt structure.

[0037] Of course, in actual use, the protective structure 201 can also be made of other materials, such as PVC pipes, metal pipes, etc. There is no specific material limitation here, as long as the protective structure 201 can isolate the internal main body 20, facilitate replacement, and provide protection and corrosion prevention.

[0038] As an optional implementation, both the first connecting section 21 and the second connecting section 22 are configured to include an external thread structure, and the connecting structure 120 includes an internal thread structure that mates with the external thread structure. The threaded connection facilitates construction operations, and it is convenient to disassemble and assemble when replacing, with good connection stability and high construction efficiency.

[0039] As an optional implementation, both the upper anchor plate 11 and the lower anchor plate 12 adopt a ring structure, and the anchor bolts 2 are evenly distributed along the ring structure.

[0040] Specifically, Figure 4 This is a top view of the upper anchor plate in this embodiment, as shown below. Figure 4As shown, in this embodiment, the upper anchor plate 11 is provided with two concentric circles, and through holes 110 are evenly distributed on each circle; the lower anchor plate 12 is provided with two concentric circles, and receiving structures 121 are evenly distributed on each circle; the receiving structures 121 and the through holes 110 are arranged in a one-to-one correspondence to improve the stability of the overall structure during use, achieve better load-bearing effect, and ensure the stable operation of the upper mechanical parts.

[0041] Example 2:

[0042] Unlike Example 1, Figure 5 This is a partial cross-sectional view of the lower anchor plate in this embodiment, as shown below. Figure 5 As shown, in this embodiment, a connector 5 is also included. The connector 5 is fixedly installed in the accommodating structure 121, and the connecting structure 120 is disposed on the connector 5 for detachable connection with the second connecting segment 22.

[0043] The connector 5 and the receiving structure 121 provided on the lower anchor plate 12 can be connected by welding, special adhesive bonding, snap-fitting, plugging, etc., to ensure good connection stability and meet the usage requirements.

[0044] By setting the connector 5, the problem that the material and performance of the lower anchor plate 12 itself cannot meet the connection requirements when the connection structure 120 is directly set on the lower anchor plate 12 can be avoided. In use, the material strength and structural characteristics of the connector 5 itself make the connection between the second connecting section 22 and the lower anchor plate 12 more stable and reliable.

[0045] In this embodiment, the connector 5 is a nut, which facilitates construction operations. In actual use, the material of the nut and the thread structure can be selected according to construction needs to better meet the usage requirements.

[0046] Example 3:

[0047] Unlike Embodiment 1 and Embodiment 2, Figure 6 This is a partial cross-sectional view of the lower anchor plate in this embodiment, as shown below. Figure 6 As shown, in this embodiment, a barrier 6 is also included. The bottom of the accommodating structure 121 is configured to communicate with the outside, and the barrier 6 is disposed at the bottom of the accommodating structure 121.

[0048] In actual use, the bottom of the receiving structure 121 can be connected to the outside as needed for construction. However, a barrier or barrier layer, such as barrier tape or barrier gasket, needs to be installed at the bottom of the receiving structure 121 to prevent the bottom of the anchor bolt from being separated from the concrete during pouring, thus facilitating subsequent anchor bolt replacement.

[0049] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A replaceable anchor bolt structure without a bottom nut, characterized in that... Includes upper anchor plate, lower anchor plate, and anchor bolts, wherein: The lower anchor plate is disposed below the upper anchor plate, and the anchor bolts are configured to include multiple bolts, which connect the upper anchor plate and the lower anchor plate. The anchor bolt includes a main body and a first connecting section and a second connecting section respectively disposed at both ends of the main body. A protective structure is provided on the outer periphery of the main body. The first connecting section extends out of the upper anchor plate and is fixed by fasteners. A receiving structure is provided on the lower anchor plate. A connecting structure is provided inside the receiving structure. The second connecting section is located inside the receiving structure and is detachably connected to the connecting structure. The accommodating structure is disposed within the lower anchor plate, and the bottom of the accommodating structure is not connected to the outside.

2. The replaceable anchor bolt structure without a bottom nut according to claim 1, characterized in that... It also includes a connector, which is fixedly installed within the accommodating structure, and the connecting structure is disposed on the connector for detachable connection with the second connecting segment.

3. A replaceable anchor bolt structure without a bottom nut according to claim 1 or 2, characterized in that... It also includes a barrier, which replaces the bottom of the accommodating structure not being connected to the outside with the bottom of the accommodating structure being connected to the outside, and the barrier is disposed at the bottom inside the accommodating structure.

4. The replaceable anchor bolt structure without a bottom nut according to claim 1, characterized in that... The protective structure is made of PE pipe.

5. A replaceable anchor bolt structure without a bottom nut according to claim 1 or 2, characterized in that... Both the first connecting segment and the second connecting segment are configured to include an external thread structure, and the connecting structure includes an internal thread structure that mates with the external thread structure.

6. A replaceable anchor bolt structure without a bottom nut according to claim 1 or 2, characterized in that... Both the upper anchor plate and the lower anchor plate adopt a ring structure, and the anchor bolts are evenly distributed along the ring structure.

7. A replaceable anchor bolt structure without a bottom nut according to claim 6, characterized in that... The upper anchor plate is provided with two concentric circles, and through holes are evenly distributed on each circle; the lower anchor plate is provided with two concentric circles, and receiving structures are evenly distributed on each circle; the receiving structures are provided in correspondence with the through holes.

8. A replaceable anchor bolt structure without a bottom nut according to claim 2, characterized in that... The connecting component is a nut.

Citation Information

Patent Citations

  • Prestressed anchor bolt mounting structure and mounting method

    CN113186969A

  • Pre-stressed foundation with replaceable anchor bolts

    CN113931218A

  • Replaceable anchor bolt structure without bottom nut

    CN217460948U