Foundation pit anchor rod supporting device

By designing a unique anchoring mechanism and humidity monitoring sensor, the problems of low pull-out resistance and insufficient humidity monitoring in existing anchor devices have been solved, thereby improving the stability and safety of foundation pit support.

CN224227783UActive Publication Date: 2026-05-12GUANGDONG JIANJI FOUNDATION ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG JIANJI FOUNDATION ENG CO LTD
Filing Date
2025-06-10
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing anchor bolt devices have low pull-out resistance during use, cannot monitor internal humidity, and are functionally insufficient.

Method used

The uniquely designed anchoring mechanism includes anchor sleeves, separation joints, and triangular resistance ribs, which, together with the filling pipe and conical platform expansion, increase the contact area with the soil and are fixed by filling concrete; at the same time, humidity monitoring sensors and early warning nuts are installed to monitor soil moisture and the loosening of the support device in real time.

Benefits of technology

It significantly improves the pull-out resistance and stability of the support device, enables real-time monitoring of soil moisture changes, timely detection of safety hazards, and enhances the safety and stability of foundation pit support.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of anchor rods, and discloses a foundation pit anchor rod supporting device which comprises an anchor pipe, threads are arranged on the outer surface of the anchor pipe, an anchoring mechanism is installed at the left end of the anchor pipe and comprises an anchoring sleeve, and the anchoring sleeve is fixedly connected with one end of the anchor pipe; and a group of separation seams are formed in the outer surface of the anchoring sleeve. According to the foundation pit anchor rod supporting device, the unique anchoring mechanism is designed and comprises the anchoring sleeve, the separation seam and the triangular resistance ribs, resistance can be reduced when the anchor pipe is inserted into soil, and when the anchoring sleeve is pushed by the conical table and the flaring piece to expand outwards, the contact area between the resistance ribs and foundation pit soil can be greatly increased; and concrete is filled through cooperation with the filling pipe, so that the anti-pulling performance of the supporting device is remarkably improved, the supporting stability of the foundation pit is ensured, a set of stabbing rods are fixedly connected to the left side face of the base plate, humidity monitoring sensors are installed in the stabbing rods, and the humidity change of foundation pit soil can be monitored in real time.
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Description

Technical Field

[0001] This application relates to the field of anchor bolt technology, specifically to an anchor bolt support device for foundation pits. Background Technology

[0002] Anchor bolts have a wide range of applications, providing structural reinforcement for slopes, tunnels, dams, and foundation pits. As one of the main support methods for underground engineering and rock slopes, anchor bolts play a crucial role in maintaining the stability of civil engineering projects.

[0003] An existing patent (publication number: CN212153401U) discloses a foundation pit support anchor bolt, comprising a rod body and a rod core. The rod body has a hollow structure, and the rod core is slidably connected to the rod body. One end of the rod body is an anchor tip, and the other end is a threaded end. An anchor head is threadedly connected to the threaded end, and one end of the rod core extends out of the threaded end. The rod body has several anchoring holes, and anchoring nails are slidably connected in the anchoring holes. The rod core has a sliding platform that mates with the anchoring nails. The height of the sliding platform is greater than the distance from the anchoring nail to the outlet of the anchoring hole, and the side of the sliding platform facing the anchoring nail is an inclined surface. One application of this invention is that the anchoring nail retracts into the anchoring hole, maintaining the smoothness of the rod body surface, which helps reduce friction during insertion and facilitates insertion. After insertion, the rod core is pushed, causing the sliding platform to push the anchoring nail out of the anchoring hole. This device is easy to operate, facilitates insertion, and provides more secure anchoring.

[0004] The aforementioned anchor bolt retracts into the anchor hole, maintaining the smoothness of the rod surface. This helps reduce friction when inserted into the hole, facilitating insertion. After insertion, the rod core is pushed, causing the slide to push the anchor bolt out of the anchor hole. This device is easy to operate, facilitates insertion, and provides a more secure anchoring. However, during use, it primarily increases resistance by having the anchor bolt penetrate the surrounding soil, resulting in low pull-out resistance. Furthermore, it cannot monitor internal humidity during use, making its functionality insufficient. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a foundation pit anchor support device, which has advantages such as TTTTT and solves the problems mentioned in the background technology.

[0006] To achieve the above objectives, this application provides the following technical solution: a foundation pit anchor bolt support device, comprising an anchor pipe, the outer surface of which is threaded, an anchoring mechanism installed at the left end of the anchor pipe, the anchoring mechanism comprising an anchoring sleeve, the anchoring sleeve being fixedly connected to one end of the anchor pipe, a set of separation seams being opened on the outer surface of the anchoring sleeve, and multiple sets of resistance ribs being fixedly connected to the outer surface of the anchoring sleeve, each of the resistance ribs having a triangular cross-section, and the sharp end of each of the resistance ribs facing away from the anchor pipe;

[0007] The anchor pipe is internally threaded with a filling pipe, and a conical platform is fixedly connected to the left end of the filling pipe. The conical platform and the filling pipe are on the same axis, and a set of flared plates arranged in a circle are fixedly connected to the outer surface of the conical platform.

[0008] The above-mentioned scheme, through the design of a unique anchoring mechanism including an anchor sleeve, a separation joint, and triangular resistance ribs, reduces resistance when the anchor pipe is inserted into the soil. When the conical platform and the flared plate push the anchor sleeve outward, the resistance ribs significantly increase the contact area with the foundation pit soil. By cooperating with the filling pipe to fill concrete, the pull-out resistance of the support device is significantly improved, ensuring the stability of the foundation pit support. A set of spikes is fixedly connected to the left side of the pad, and a humidity monitoring sensor is installed inside the spikes to monitor the humidity changes of the foundation pit soil in real time, providing important data support for the safety management of the foundation pit and helping to promptly identify and deal with potential safety hazards. A warning nut is in contact with the right side of the conventional nut. When the support device becomes loose, the warning nut will issue a warning signal, reminding relevant personnel to take timely measures to reinforce it, thereby effectively improving the safety of the foundation pit support device.

[0009] Furthermore, a pad is fitted onto the right end of the anchor pipe.

[0010] The above solution, by setting up the pad, can increase the contact area between the anchor pipe and the side wall of the foundation pit, thereby improving the stability of the support device.

[0011] Furthermore, the right side of the pad is in contact with a conventional nut, and the conventional nut is threadedly connected to the anchor pipe.

[0012] Using the above method, the pad and the entire support device can be firmly fixed to the side wall of the pit by tightening the conventional nuts.

[0013] Furthermore, the right side of the conventional nut is in contact with a warning nut, and the warning nut is threadedly connected to the anchor pipe.

[0014] With the above solution, by further tightening the warning nut, when the support device becomes loose, the warning nut will issue a warning signal due to excessive force, reminding relevant personnel to take timely measures.

[0015] Furthermore, a set of spikes is fixedly connected to the left side of the pad, and the outer surface of each set of spikes is provided with a through groove, and a humidity monitoring sensor is installed inside each spike.

[0016] The above scheme, through the installation of humidity monitoring sensors, enables real-time monitoring of changes in soil humidity in the foundation pit, providing data support for the safe management of the foundation pit.

[0017] Furthermore, the anchor sleeve is made of spring steel.

[0018] The above scheme utilizes the excellent elasticity and toughness of spring steel to enable the anchor sleeve to undergo elastic deformation when squeezed by the conical platform and the flared plate, thereby expanding it better and improving the stability of the support device.

[0019] Furthermore, a hexagonal ring is fixedly connected to the right end of the filling tube.

[0020] The above solution, with its hexagonal ring, allows users to easily use external tools, such as wrenches or sockets, to rotate the filling tube, thereby achieving precise control over the filling tube and the conical platform and improving construction efficiency.

[0021] Furthermore, both the anchor pipe and the filling pipe are made of high-strength alloy steel.

[0022] The above-mentioned solution utilizes the excellent mechanical properties and corrosion resistance of high-strength alloy steel to enable the support device to withstand greater tensile and compressive forces, while resisting the corrosive effects of the foundation pit soil and extending its service life.

[0023] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0024] This foundation pit anchor support device features a uniquely designed anchoring mechanism, including an anchor sleeve, a separation joint, and triangular resistance ribs. This design reduces resistance when the anchor pipe is inserted into the soil. When the conical platform and flared plate push the anchor sleeve outwards, the resistance ribs significantly increase the contact area with the foundation pit soil. Combined with the concrete filling pipe, this significantly improves the pull-out resistance of the support device, ensuring the stability of the foundation pit support. A set of spikes is fixedly connected to the left side of the pad, and a humidity monitoring sensor is installed inside the spikes. This allows for real-time monitoring of soil humidity changes in the foundation pit, providing crucial data support for safety management and helping to promptly identify and address potential safety hazards. A warning nut is located on the right side of the conventional nut. When the support device becomes loose, the warning nut sends a warning signal, reminding relevant personnel to take timely reinforcement measures, thus effectively improving the safety of the foundation pit support device. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this application;

[0026] Figure 2 This is a front view of the overall structure of this application;

[0027] Figure 3 This is a sectional view of the overall structure of this application from the front.

[0028] Figure 4This is a structural diagram of the anchoring mechanism in this application;

[0029] Figure 5 This is a structural diagram of the pad plate in this application.

[0030] In the picture:

[0031] 1. Anchor pipe; 2. Anchoring mechanism; 201. Anchor sleeve; 202. Separation joint; 203. Resistance rib; 3. Filling pipe; 4. Conical platform; 5. Flared plate; 6. Washer plate; 7. Conventional nut; 8. Warning nut; 9. Spike bar; 10. Through groove; 11. Humidity monitoring sensor; 12. Hexagonal ring. Detailed Implementation

[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0033] Please see Figure 1 , Figure 2 and Figure 4 This embodiment of a foundation pit anchor support device includes an anchor pipe 1 with threads on its outer surface. An anchoring mechanism 2 is installed at the left end of the anchor pipe 1. The anchoring mechanism 2 includes an anchor sleeve 201, which is fixedly connected to one end of the anchor pipe 1. A set of separation seams 202 are opened on the outer surface of the anchor sleeve 201. Multiple sets of resistance ribs 203 are fixedly connected to the outer surface of the anchor sleeve 201. The cross-section of each resistance rib 203 is triangular, and the sharp end of each resistance rib 203 faces away from the anchor pipe 1. The triangular arrangement of the resistance ribs 203 can reduce the resistance when the anchor pipe 1 is inserted. When the anchor sleeve 201 flips outward and expands, it can cooperate with the resistance ribs 203 to increase the contact area with the foundation pit soil.

[0034] Please see Figure 1 , Figure 2 and Figure 4The anchor pipe 1 is internally threaded with a filling pipe 3. A conical platform 4 is fixedly connected to the left end of the filling pipe 3. The conical platform 4 and the filling pipe 3 are on the same axis. A set of circumferentially arranged flared plates 5 are fixedly connected to the outer surface of the conical platform 4. By setting the flared plates 5, the conical platform 4 can squeeze the anchor sleeve 201 outward when it approaches the anchor sleeve 201, thereby increasing the movement resistance of the anchor pipe 1, improving the pull-out resistance, and ensuring the support strength. The anchor sleeve 201 is made of spring steel. Through the excellent elasticity and toughness of spring steel, the anchor sleeve 201 can undergo elastic deformation when squeezed by the conical platform 4 and the flared plates 5, thereby better expanding it and improving the stability of the support device.

[0035] Please see Figure 1 , Figure 2 and Figure 3 An anchor pipe 1 has a pad 6 fitted onto its right end. The pad 6 increases the contact area between the anchor pipe 1 and the pit sidewall, thereby improving the stability of the support device. The right side of the pad 6 is in contact with a conventional nut 7, which is threaded to the anchor pipe 1. Tightening the conventional nut 7 secures the pad 6 and the entire support device to the pit sidewall. The right side of the conventional nut 7 is in contact with a warning nut 8, which is threaded to the anchor pipe 1. By further tightening the warning nut 8, when the support device becomes loose, the warning nut 8 will issue a warning signal due to excessive force, reminding relevant personnel to take timely measures.

[0036] Please see Figure 1 , Figure 3 and Figure 5 A hexagonal ring 12 is fixedly connected to the right end of the filling pipe 3. The hexagonal ring 12 allows the user to easily rotate the filling pipe 3 using external tools, such as a wrench or socket, thereby achieving precise control of the filling pipe 3 and the conical platform 4, improving construction efficiency. A set of spikes 9 is fixedly connected to the left side of the pad plate 6. The outer surface of each set of spikes 9 is provided with through grooves 10. A humidity monitoring sensor 11 is installed inside each spike 9. The humidity monitoring sensor 11 can monitor the humidity changes of the foundation pit soil in real time, providing data support for the safety management of the foundation pit. Both the anchor pipe 1 and the filling pipe 3 are made of high-strength alloy steel. The excellent mechanical properties and corrosion resistance of high-strength alloy steel enable the support device to withstand greater tensile and compressive forces, while resisting the corrosion of the foundation pit soil and extending its service life.

[0037] In this embodiment, a foundation pit anchor support device features a uniquely designed anchoring mechanism 2, including an anchoring sleeve 201, a separation joint 202, and triangular resistance ribs 203. This mechanism reduces resistance when the anchor pipe 1 is inserted into the soil. When the conical platform 4 and the flared plate 5 push the anchoring sleeve 201 outward, the resistance ribs 203 significantly increase the contact area with the foundation pit soil. By cooperating with the filling pipe 3 to fill concrete, the pull-out resistance of the support device is significantly improved, ensuring the stability of the foundation pit support. A set of spikes 9 are fixedly connected to the left side of the pad plate 6, and a humidity monitoring sensor 11 is installed inside the spikes 9. This sensor can monitor the humidity changes of the foundation pit soil in real time, providing important data support for the safety management of the foundation pit and helping to promptly identify and address potential safety hazards. A warning nut 8 is in contact with the right side of the conventional nut 7. When the support device becomes loose, the warning nut 8 will issue a warning signal, reminding relevant personnel to take timely measures to reinforce it, thereby effectively improving the safety of the foundation pit support device.

[0038] The working principle of the above embodiment is as follows: First, the installation process of the device begins. The operator inserts the end of the anchor pipe 1 with the anchoring mechanism 2 into the predetermined position of the foundation pit. During this process, due to the design of the triangular resistance ribs 203 on the outer surface of the anchor sleeve 201, they can reduce the resistance when the anchor pipe 1 is inserted into the soil, allowing the anchor pipe 1 to enter the soil more smoothly. Then, when the anchor pipe 1 reaches the predetermined depth, the operator begins to rotate and push the filling pipe 3. The filling pipe 3 is threadedly connected to the inside of the anchor pipe 1, and the conical platform 4 at its left end also moves accordingly and gradually approaches the anchor sleeve 201. At this time, the flared plates 5 on the outer surface of the conical platform 4 begin to play a role. They squeeze the anchor sleeve 201, causing it to flip and expand outward along the separation joint 202. During this process, the anchor sleeve 201 undergoes elastic deformation and flips outward, greatly increasing the contact area with the foundation pit soil. The sharp ends of the triangular resistance ribs 203 also penetrate deep into the soil, further improving the pull-out resistance of the support device. Subsequently, the operators pour concrete into the anchor pipe 1 through the filling pipe 3 to fix the support device. Under the pressure inside the filling pipe 3, the concrete gradually fills the gap between the anchor pipe 1 and the soil, making the support device more stable. In addition, the device also has a real-time monitoring function. The barbed rod 9 fixed on the left side of the pad 6 is equipped with a humidity monitoring sensor 11, which can monitor the humidity changes of the foundation pit soil in real time. Once the soil humidity is abnormal, the sensor will immediately issue an alarm to remind the operators to take timely measures. Finally, in order to further improve the safety of the support device, the conventional nut 7 and the warning nut 8 are tightened on the anchor pipe 1 in sequence. When the support device becomes loose, the warning nut 8 will issue a warning signal due to excessive force, reminding relevant personnel to take timely measures to reinforce it.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0040] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A foundation pit anchor support device, comprising an anchor pipe (1), characterized in that: The outer surface of the anchor pipe (1) is threaded. An anchoring mechanism (2) is installed at the left end of the anchor pipe (1). The anchoring mechanism (2) includes an anchoring sleeve (201). The anchoring sleeve (201) is fixedly connected to one end of the anchor pipe (1). A set of separation seams (202) is opened on the outer surface of the anchoring sleeve (201). Multiple sets of resistance ribs (203) are fixedly connected to the outer surface of the anchoring sleeve (201). The cross-section of each resistance rib (203) is triangular, and the sharp end of each resistance rib (203) faces away from the anchor pipe (1). The anchor pipe (1) is internally threaded with a filling pipe (3), and a conical platform (4) is fixedly connected to the left end of the filling pipe (3). The conical platform (4) and the filling pipe (3) are on the same axis, and a set of flared plates (5) arranged in a circle are fixedly connected to the outer surface of the conical platform (4).

2. The foundation pit anchor support device according to claim 1, characterized in that: The right end of the anchor pipe (1) is fitted with a pad (6).

3. The foundation pit anchor support device according to claim 2, characterized in that: The right side of the pad (6) is in contact with a conventional nut (7), and the conventional nut (7) is threadedly connected to the anchor pipe (1).

4. The foundation pit anchor support device according to claim 3, characterized in that: The right side of the conventional nut (7) is in contact with a warning nut (8), and the warning nut (8) is threadedly connected to the anchor pipe (1).

5. The foundation pit anchor support device according to claim 2, characterized in that: A set of spikes (9) are fixedly connected to the left side of the pad (6). A through groove (10) is opened on the outer surface of the set of spikes (9). A humidity monitoring sensor (11) is installed inside each spike (9).

6. The foundation pit anchor support device according to claim 1, characterized in that: The anchor sleeve (201) is made of spring steel.

7. The foundation pit anchor support device according to claim 1, characterized in that: A hexagonal ring (12) is fixedly connected to the right end of the filling tube (3).

8. The foundation pit anchor support device according to claim 1, characterized in that: Both the anchor pipe (1) and the filling pipe (3) are made of high-strength alloy steel.