A prestressed anti-buoyancy anchor bolt locking device

Abstract

This utility model discloses a prestressed anti-buoyancy anchor bolt locking device, including a rod body, a fastening head fixedly connected to the outer wall of the rod body, a multi-adaptive mechanism provided at the bottom of the outer wall of the fastening head, a torque concentration mechanism provided at the bottom of the outer wall of the rod body, a nut buckle fixedly connected to the outer wall of the rod body, a fastening mechanism provided at the outer wall of the nut buckle, and a multi-adaptive mechanism including an anchor cable hydraulic jack, the bottom of the outer wall of the anchor cable hydraulic jack fixedly connected to the bottom of the outer wall of the fastening head, a base plate fixedly connected to the bottom of the outer wall of the anchor cable hydraulic jack, an upper base fixedly connected to the bottom of the outer wall of the base plate, and a lower base fixedly connected to the bottom of the outer wall of the upper base. In this utility model, the device applies axial tension to the anchor bolt reinforcement, so that the anchor bolt reaches a predetermined prestress value and completes locking. The upper and lower bases have built-in springs that adjust the distance using pre-tension force. A limiting rod connects the upper and lower bases and controls the height adjustment, allowing the base height to be adjusted to meet the fastening and pulling requirements of various rod bodies.

Description

Technical Field

[0001] This utility model relates to the field of construction machinery technology, and in particular to a prestressed anti-buoyancy anchor locking device. Background Technology

[0002] Anti-buoyancy anchors play an important role in building foundation engineering. They resist the buoyancy of groundwater by being deeply buried in the soil, preventing the structure from floating and shifting, and ensuring the safety and stability of the foundation. In order to optimize the anchoring effect, anti-buoyancy anchor locking devices are used to lock the ends of the anchors to eliminate the risk of slippage, improve the reliability and durability of the structure, and the whole process is rigorous and efficient.

[0003] A search revealed Chinese Patent Publication No. CN205976542U, which discloses a fiberglass reinforced prestressed anti-buoyancy anchor loading device. The device features a steel sleeve with its bottom end penetrating the base plate and extending into the rock substrate. The lower section of the anchor rod is anchored in the rock substrate, while the upper section is fitted into the steel sleeve and bonded to it using epoxy resin. The anchor rod is a GFRP anchor rod. A lower bearing plate is placed on the base plate and slides onto the steel sleeve via a through-hole. A locking nut is installed on the steel sleeve, with the lower bearing plate serving as the locking end face. A prestressing loading mechanism is installed above the steel sleeve to apply prestress to the anchor rod through the force transmitted from the steel sleeve. The utility model can avoid shear damage to the anchor rod when applying prestress, ensure the effective connection between the anchor rod and the bottom plate reinforcement, and ensure the anchoring support effect of the anti-buoyancy anchor rod. However, in actual use, the above device has poor adaptability to anchor rods of different sizes. Therefore, a prestressed anti-buoyancy anchor rod locking device is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a prestressed anti-buoyancy anchor bolt locking device, which aims to improve the poor adaptability of existing technology to anchor bolts of different sizes.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a prestressed anti-buoyancy anchor bolt locking device, comprising a rod body, a fastening head fixedly connected to the outer wall of the rod body, a plurality of fitting mechanisms provided at the bottom of the outer wall of the fastening head, a torque concentration mechanism provided at the bottom end of the outer wall of the rod body, a nut buckle threadedly connected to the outer wall of the rod body, and a fastening mechanism provided on the outer wall of the nut buckle; The multi-adapter mechanism includes an anchor cable hydraulic jack. The bottom of the outer wall of the anchor cable hydraulic jack is fixedly connected to the bottom of the outer wall of the fastening head. A base plate is fixedly connected to the bottom of the outer wall of the anchor cable hydraulic jack. An upper base is fixedly connected to the bottom of the outer wall of the base plate. A lower base is fixedly connected to the bottom of the outer wall of the upper base. An elastic component is provided on the inner wall of the lower base. An adjustment component is provided on the inner wall of the lower base.

[0006] The above technical solution includes a multi-adapter mechanism comprising an anchor cable hydraulic jack, the bottom end of which is connected to the bottom end of a fastening head, a base plate at the bottom end of the jack, an upper base at the bottom end of the base plate, a lower base at the bottom end of the upper base, an elastic component inside the lower base, and an adjustment component installed on the inner wall of the lower base.

[0007] As a further description of the above technical solution: The torque concentration mechanism includes an anchor bar, the top of the outer wall of the anchor bar is fixedly connected to the bottom of the outer wall of the rod, multiple bearing rings are fixedly connected to the outer wall of the anchor bar, ribs are fixedly connected to the outer wall of each of the multiple bearing rings, adhesive blocks are fixedly connected to the outer wall of each of the multiple ribs, and multiple barbs are fixedly connected to the outer wall of the anchor bar.

[0008] The above technical solution involves a torque concentration mechanism containing an anchor bar, with the top of the anchor bar connected to the bottom of the rod body. Multiple bearing rings are distributed on the surface of the anchor bar, and ribs are attached to the outer walls of these bearing rings. Adhesive blocks are attached to the outer walls of the ribs, and multiple barbs are also distributed on the surface of the anchor bar.

[0009] As a further description of the above technical solution: The torque concentration mechanism also includes an anchor tip, the top of which is fixedly connected to the bottom of the outer wall of the anchor bar.

[0010] The above technical solution involves a torque concentration mechanism with an anchor tip, the top of which is fixed to the bottom surface of the anchor bar.

[0011] As a further description of the above technical solution: The fastening mechanism includes a wrench, the outer wall of which is fixedly connected to the outer wall of the nut buckle, and a handle is fixedly connected to the outer wall of the wrench.

[0012] The above technical solution involves a wrench in the fastening mechanism, with the outer wall of the wrench engaging with the outer wall of the nut, and a handle attached to the outer wall of the wrench for easy operation.

[0013] As a further description of the above technical solution: The elastic component includes a spring, the outer wall of which is fixedly connected to the inner wall of the lower base, and the outer wall of the lower base has an inner cavity.

[0014] The above technical solution involves an elastic component with a spring, the outer wall of which is fixed to the inner wall of the lower base, and the outer wall of the lower base has an inner cavity to accommodate the relevant components.

[0015] As a further description of the above technical solution: The adjustment assembly includes a limiting rod, the outer wall of which is slidably connected to the inner wall of the inner cavity, and a buffer pad is fixedly connected to the outer wall of the limiting rod.

[0016] The above technical solution involves an adjustment component with a limiting rod. The outer wall of the limiting rod slides within the inner cavity wall, and a buffer pad is fixedly attached to the outer wall of the limiting rod to absorb vibration.

[0017] As a further description of the above technical solution: The upper part of the outer wall of the limiting rod is slidably connected to the inner wall of the upper base, and the lower part of the outer wall of the limiting rod is slidably connected to the inner wall of the lower base.

[0018] Through the above technical solution: the upper outer wall of the limiting rod slides to adapt to the inner wall of the upper base, and the lower outer wall slides to adapt to the inner wall of the lower base.

[0019] As a further description of the above technical solution: The outer wall of the buffer pad is slidably connected to the inner wall of the upper base, and the outer wall of the buffer pad is slidably connected to the inner wall of the lower base.

[0020] Through the above technical solution, the outer wall of the buffer pad slides synchronously with the inner walls of the two bases to form a linkage buffer.

[0021] In summary, this utility model has the following beneficial effects: 1. In this utility model, the device applies axial tension to the anchor rod reinforcement, so that the anchor rod reaches the predetermined prestress value and completes locking. A base plate with through holes is set below in sequence. The upper and lower bases have built-in springs to adjust the base spacing using pre-tightening force. The limiting rod connects the upper and lower bases and controls the height adjustment, ensuring that the equipment is stably anchored to the foundation layer. The device has a simple structure and the base height can be adjusted to meet the fastening and pulling requirements of various rods.

[0022] 2. In this utility model, the top of the anchor bar is connected to the bottom of the rod body, and multiple bearing rings are set on the surface. The bearing rings tightly fit the anchor bar to fix the position of the rod body and prevent slippage under force. Ribs are welded to the outer wall of the bearing rings. The ribs directly transmit the radial force to the anchor bar body, significantly dispersing the stress at the welding point and avoiding the risk of local tearing. The surface of the anchor bar is evenly distributed with barbs. The barbs form a mechanical interlocking effect in the grout body by means of the spiral interlocking structure, which effectively inhibits the expansion of microcracks in the rock and soil and enhances the reliability of the anchor. Attached Figure Description

[0023] Figure 1 This is a perspective view of a prestressed anti-buoyancy anchor locking device proposed in this utility model.

[0024] Figure 2 This is a front view of a prestressed anti-buoyancy anchor bolt locking device proposed in this utility model.

[0025] Figure 3 yes Figure 2 Enlarged view of point A.

[0026] Figure 4This is a side view of a prestressed anti-buoyancy anchor bolt locking device proposed in this utility model.

[0027] Figure 5 This is a rear view of a prestressed anti-buoyancy anchor bolt locking device proposed in this utility model.

[0028] Figure 6 This is a cross-sectional view of a prestressed anti-buoyancy anchor bolt locking device proposed in this utility model.

[0029] Explanation of reference numerals in the attached figures: 1. Rod body; 2. Fastening head; 3. Multi-adapter mechanism; 301. Anchor cable hydraulic jack; 302. Base plate; 303. Upper base; 304. Lower base; 305. Elastic component; 3051. Inner cavity; 3052. Spring; 306. Adjustment component; 3061. Buffer pad; 3062. Limiting rod; 4. Nut buckle; 5. Fastening mechanism; 501. Wrench; 502. Handle; 6. Torque concentration mechanism; 601. Anchor bar; 602. Bearing ring; 603. Adhesive block; 604. Barb; 605. Rib; 606. Anchor tip. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figure 1 , Figure 2 and Figure 6 This utility model provides an embodiment of a prestressed anti-buoyancy anchor bolt locking device, including a rod body 1, which serves as a tension member extending into the soil layer to connect the structural foundation with the stable stratum and transmit buoyancy force to the deep soil to resist the buoyancy force of groundwater. A fastening head 2 is fixedly connected to the outer wall of the rod body 1. A multi-adapter mechanism 3 is provided at the bottom of the outer wall of the fastening head 2. A torque concentration mechanism 6 is provided at the bottom of the outer wall of the rod body 1. A nut buckle 4 is threadedly connected to the outer wall of the rod body 1, which provides axial pressure by tightening the anchor head through the thread to enhance the pull-out stability of the end of the rod body 1. A fastening mechanism 5 is provided on the outer wall of the nut buckle 4. The fastening mechanism 5 includes a wrench 501 for tightening the anti-buoyancy rod body 1. The outer wall of the wrench 501 is fixedly connected to the outer wall of the nut buckle 4. A handle 502 is fixedly connected to the outer wall of the wrench 501 to improve the comfort of the operator during the tightening process. The multi-adapter mechanism 3 includes an anchor cable hydraulic jack 301, which applies an upward pulling force to the reinforcing bar of the rod 1. It generates axial tension by driving a piston with hydraulic oil, causing the rod 1 to reach the designed prestress value and lock. The bottom of the outer wall of the anchor cable hydraulic jack 301 is fixedly connected to the bottom end of the outer wall of the fastening head 2. A base plate 302 with a through hole is fixedly connected to the bottom of the outer wall of the anchor cable hydraulic jack 301. An upper base 303 is fixedly connected to the bottom of the outer wall of the base plate 302, and a lower base 304 is fixedly connected to the bottom of the outer wall of the upper base 303. An elastic component 305, including a spring 3052, is provided on the inner wall of the lower base 304, which uses its own pre-tension force to adjust the height between the upper base 303 and the lower base 304. The outer wall of spring 3052 is fixedly connected to the inner wall of lower base 304. The outer wall of lower base 304 has an inner cavity 3051. An adjustment component 306 is provided on the inner wall of lower base 304. The adjustment component 306 includes a limiting rod 3062, which is used to connect upper base 303 and lower base 304 and plays a key role in adjusting the height. The outer wall of limiting rod 3062 is slidably connected to the inner wall of inner cavity 3051. A buffer pad 3061 is fixedly connected to the outer wall of limiting rod 3062 to buffer the impact caused by the force of spring 3052 and improve the service life of the device. Upper base 303 and lower base 304 serve as the basic platform supporting the entire tensioning structure. The rigid structure disperses the tensioning reaction force to ensure that the device is stably anchored to the foundation pad or ground and prevents displacement. Specifically, the multi-adapter mechanism 3 is equipped with an anchor cable hydraulic jack 301. The anchor cable hydraulic jack 301 is used to apply an upward pulling force to the reinforcing bar of the rod 1. With the help of hydraulic oil, it pushes the piston to form axial tension, so that the rod 1 reaches the design prestress value and locks in position. The top of the outer wall of the anchor cable hydraulic jack 301 is welded to the bottom surface of the fastening head 2. The bottom of the outer wall of the anchor cable hydraulic jack 301 is also connected to a base plate 302. The base plate 302 has a through hole to allow the hydraulic tie rod and the rod 1 to pass through smoothly. The bottom of the outer wall of the base plate 302 is welded and fixed to the upper base 303. The bottom of the outer wall of the upper base 303 is then connected to the lower base 304. The lower base 304 is equipped with an elastic component 305. The elastic component 305 integrates a spring 3052. The spring 3052 uses its own pre-tension force to adjust the upper base 303 and the lower base 304. The spring 3052 is fixed to the inner wall of the lower base 304 at the interval height of the base 304. The outer wall of the lower base 304 has an inner cavity 3051. An adjustment component 306 is installed on the inner wall of the lower base 304. The adjustment component 306 includes a limiting rod 3062. The rod connects the upper base 303 and the lower base 304 and controls the height adjustment process. The outer wall of the limiting rod 3062 is slidably placed inside the inner wall of the inner cavity 3051. A buffer pad 3061 is attached to the outer wall of the limiting rod 3062. This pad counteracts the impact fluctuations caused by the force of the spring 3052, helping to improve the durability and service life of the entire device. As a support platform for the tension structure, the upper base 303 and the lower base 304 distribute the tension reaction force evenly through a solid structure, ensuring that the device is reliably anchored on the foundation pad or ground surface and preventing movement.

[0032] Reference Figure 1 and Figure 3 The torque concentration mechanism 6 includes an anchor bar 601. The top of the outer wall of the anchor bar 601 is fixedly connected to the bottom of the outer wall of the rod 1. Multiple bearing rings 602 are fixedly connected to the outer wall of the anchor bar 601 and are sleeved on the surface of the anchor bar 601 to fix the position of the rod 1 and prevent it from slipping after being subjected to force. Ribs 605 are fixedly connected to the outer walls of the multiple bearing rings 602, which directly transmit the radial force borne by the bearing rings 602 to the main body of the anchor bar 601 through the ribs 605, avoiding welding between the bearing rings 602 and the anchor bar 601. The joints tear due to excessive local stress. The outer walls of multiple ribs 605 are fixedly connected to adhesive blocks 603, which are the welding points of the bearing ring 602 and the anchor bar 601. The outer wall of the anchor bar 601 is fixedly connected to multiple barbs 604, which form a locking effect with the grouting body through a spiral mechanical interlocking structure, blocking the propagation of microcracks. The torque concentration mechanism 6 also includes an anchor tip 606, which helps the anchor bar 601 to penetrate the ground more quickly. The top of the outer wall of the anchor tip 606 is fixedly connected to the bottom of the outer wall of the anchor bar 601. Specifically, the torque concentration mechanism 6 includes an anchor bar 601. The top of the anchor bar 601 is connected to the bottom outer wall of the rod body 1. Multiple bearing rings 602 are provided on the outer wall of the anchor bar 601. The bearing rings 602 are sleeved on the surface of the anchor bar 601, fixing the position of the rod body 1 and suppressing slippage under force. Ribs 605 are connected to the outer walls of the multiple bearing rings 602 respectively. The ribs 605 transmit the radial force borne by the bearing rings 602 to the main body of the anchor bar 601, effectively dispersing the force at the weld points and avoiding the risk of tearing. The wall-connecting adhesive block 603 serves as the welding point between the bearing ring 602 and the anchor bar 601, strengthening the bond strength. Multiple barbs 604 are evenly distributed on the outer wall of the anchor bar 601. The barbs 604 form an interlocking effect with the grouting body through a spiral interlocking structure, inhibiting the growth of micro-cracks and improving the reliability of anchoring. The mechanism is also equipped with an anchor tip 606, the top of which is fixed to the bottom outer wall of the anchor bar 601. Its conical structure assists the anchor bar 601 in efficiently penetrating the soil layer and accelerating the diving process.

[0033] Reference Figure 1 , Figure 4 and Figure 5 The upper part of the outer wall of the limiting rod 3062 is slidably connected to the inner wall of the upper base 303, the lower part of the outer wall of the limiting rod 3062 is slidably connected to the inner wall of the lower base 304, the outer wall of the buffer pad 3061 is slidably connected to the inner wall of the upper base 303, and the outer wall of the buffer pad 3061 is slidably connected to the inner wall of the lower base 304. Specifically, the upper outer wall of the limiting rod 3062 is slidably fitted on the inner wall of the upper base 303, the lower outer wall of the limiting rod 3062 is slidably fitted on the inner wall of the lower base 304, and the outer wall of the buffer pad 3061 is simultaneously slidably fitted between the inner walls of the upper base 303 and the inner walls of the lower base 304.

[0034] Working principle: First, axial tension is applied to the reinforcing bar of rod 1. The hydraulic structure drives rod 1 to reach a predetermined prestress value and locks it. A base plate 302 is sequentially installed below the device. The base plate 302 has a through hole for rod 1 and hydraulic tie rods to pass through. An upper base 303 and a lower base 304 are connected below the base plate 302. An elastic component 305 is installed inside the lower base 304. A spring 3052 in the elastic component 305 adjusts the height difference between the upper base 303 and the lower base 304 using pre-tension force. The outer wall of the spring 3052 is fixed to the inner wall of the lower base 304 cavity 3051. Simultaneously, the inner wall of the lower base 304 is provided with… The adjusting component 306 has a limiting rod 3062 that connects the upper base 303 and the lower base 304, which controls the height adjustment process. The upper outer wall of the limiting rod 3062 slides against the inner wall of the upper base 303, and the lower outer wall slides against the inner wall of the lower base 304. The outer wall of the limiting rod 3062 is fixed with a buffer pad 3061, which absorbs the impact energy of the spring 3052 to extend the life of the device. The upper and lower bases 304 together form a support platform. The reaction force is dispersed through a solid structure to ensure that the overall device is stably anchored to the foundation layer, which is suitable for the fastening and pulling requirements of various rods 1. Furthermore, the bottom end of the rod body 1 is fixed to the top outer wall of the anchor bar 601, and multiple bearing rings 602 are evenly installed on the surface of the anchor bar 601. The bearing rings 602 are tightly fitted onto the surface of the anchor bar 601 to fix the position of the rod body 1 and resist slippage under force. Ribs 605 are welded to the outer wall of each bearing ring 602. The ribs 605 efficiently transfer the radial force borne by the bearing ring 602 to the main body of the anchor bar 601, avoiding tearing of the welding point between the bearing ring 602 and the anchor bar 601 due to local stress overload. Adhesive blocks 603 are fixed to the outer wall of each rib 605 as a reinforcement structure for the welding point. Multiple barbs 604 are arranged on the surface of the anchor bar 601. The barbs 604 form an interlocking effect with the grout through a spiral interlocking structure, effectively inhibiting the spread of micro-cracks in the soil and rock and improving the overall reliability of the anchoring.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A prestressed anti-buoyancy anchor locking device, comprising a rod body (1), characterized in that: The outer wall of the rod (1) is fixedly connected to a fastening head (2), and the bottom of the outer wall of the fastening head (2) is provided with a multi-adapter mechanism (3). The bottom of the outer wall of the rod (1) is provided with a torque concentration mechanism (6). The outer wall of the rod (1) is threadedly connected to a nut buckle (4), and the outer wall of the nut buckle (4) is provided with a fastening mechanism (5). The multi-adapter mechanism (3) includes an anchor cable hydraulic jack (301), the bottom of the outer wall of the anchor cable hydraulic jack (301) is fixedly connected to the bottom of the outer wall of the fastening head (2), the bottom of the outer wall of the anchor cable hydraulic jack (301) is fixedly connected to a base plate (302), the bottom of the outer wall of the base plate (302) is fixedly connected to an upper base (303), the bottom of the outer wall of the upper base (303) is fixedly connected to a lower base (304), the inner wall of the lower base (304) is provided with an elastic component (305), and the inner wall of the lower base (304) is provided with an adjustment component (306).

2. The prestressed anti-buoyancy anchor locking device according to claim 1, characterized in that: The torque concentration mechanism (6) includes an anchor bar (601), the top of the outer wall of the anchor bar (601) is fixedly connected to the bottom of the outer wall of the rod (1), the outer wall of the anchor bar (601) is fixedly connected to a plurality of bearing rings (602), the outer walls of the plurality of bearing rings (602) are fixedly connected to ribs (605), the outer walls of the plurality of ribs (605) are fixedly connected to adhesive blocks (603), and the outer wall of the anchor bar (601) is fixedly connected to a plurality of barbs (604).

3. The prestressed anti-buoyancy anchor bolt locking device according to claim 1, characterized in that: The torque concentration mechanism (6) also includes an anchor tip (606), the top of the outer wall of which is fixedly connected to the bottom of the outer wall of the anchor bar (601).

4. The prestressed anti-buoyancy anchor bolt locking device according to claim 1, characterized in that: The fastening mechanism (5) includes a wrench (501), the outer wall of which is fixedly connected to the outer wall of the nut buckle (4), and a handle (502) is fixedly connected to the outer wall of the wrench (501).

5. A prestressed anti-buoyancy anchor bolt locking device according to claim 1, characterized in that: The elastic component (305) includes a spring (3052), the outer wall of which is fixedly connected to the inner wall of the lower base (304), and the outer wall of the lower base (304) has an inner cavity (3051).

6. The prestressed anti-buoyancy anchor bolt locking device according to claim 1, characterized in that: The adjustment assembly (306) includes a limiting rod (3062), the outer wall of which is slidably connected to the inner wall of the inner cavity (3051), and a buffer pad (3061) is fixedly connected to the outer wall of the limiting rod (3062).

7. A prestressed anti-buoyancy anchor bolt locking device according to claim 6, characterized in that: The upper part of the outer wall of the limiting rod (3062) is slidably connected to the inner wall of the upper base (303), and the lower part of the outer wall of the limiting rod (3062) is slidably connected to the inner wall of the lower base (304).

8. A prestressed anti-buoyancy anchor bolt locking device according to claim 6, characterized in that: The outer wall of the buffer pad (3061) is slidably connected to the inner wall of the upper base (303), and the outer wall of the buffer pad (3061) is slidably connected to the inner wall of the lower base (304).

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