Heavy anchor bolt with stretching function

Abstract

The utility model discloses a heavy anchor bolt with a stretching function, which comprises a fastening mechanism, a fixing mechanism and a tensioning mechanism, the propelling mechanism is arranged outside the fastening mechanism in a sleeving manner, and the fastening mechanism is used for extruding and expanding the propelling mechanism; and the rotating supporting mechanisms are installed on the fastening mechanism in an annular array, and when the propelling mechanism does not stop the rotating supporting mechanisms, the rotating supporting mechanisms can be rotationally opened. By means of the arrangement mode that the propelling mechanism and the rotary supporting mechanism are matched, the pushing cylinder can be conveniently pushed to linearly slide under the limiting of the threaded column through the nut base, the propelling ring can push the expansion clamping piece to expand, and meanwhile the position of the rotary hook claw is not limited and blocked any more; and through the elasticity of the elastic supporting frame to the rotating hook claws, the rotating hook claws rotate and unfold with the elastic inserting piece as the circle center, inclined struts are formed, and therefore the anchoring capacity is further improved.

Description

Technical Field

[0001] This utility model relates to the field of anchor bolts, and in particular to a heavy-duty anchor bolt with tensile strength. Background Technology

[0002] Heavy-duty anchors are widely used for fixing and reinforcing buildings, bridges, tunnels, foundation pits, and other infrastructure. Their main function is to firmly anchor structures to the substrate to withstand tensile and shear forces from all directions. Under high loads and complex environments, the performance of anchors directly affects the safety and stability of the structure, thus requiring extremely high standards in their design and manufacturing.

[0003] Existing mechanical anchors mainly rely on radial expansion force to form friction with the hole wall for fixation. However, in cases of smooth hole walls or locally loose concrete, the coefficient of friction decreases, leading to a significant reduction in the anchor's pull-out resistance. Since traditional designs cannot generate oblique support force under axial tension, the anchor is prone to relying solely on the positive pressure between the expansion plate and the hole wall under stress, especially when subjected to transverse shear or tensile forces, making it susceptible to displacement or pull-out. Utility Model Content

[0004] The purpose of this invention is to provide a heavy-duty anchor bolt with tensile strength to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heavy-duty anchor bolt with tensile force, comprising:

[0006] A fastening mechanism, wherein the fastening mechanism is arranged in a straight line;

[0007] A propulsion mechanism is sleeved outside a fastening mechanism, and the fastening mechanism is used to compress and expand the propulsion mechanism.

[0008] A rotating support mechanism is mounted in a ring array on a fastening mechanism, and multiple rotating support mechanisms can be rotated open when the propulsion mechanism no longer obstructs them.

[0009] Preferably, the fastening mechanism includes:

[0010] A threaded post, wherein the external thread is provided on the outside;

[0011] A nut seat, wherein the nut seat is threadedly connected to one end of a threaded post;

[0012] An expansion cone is fixedly connected to the other end of a threaded column.

[0013] Preferably, the propulsion mechanism includes:

[0014] A pusher cylinder, which is slidably sleeved with a threaded column;

[0015] A propulsion ring is disposed at one end of the push cylinder, and the propulsion ring is slidably sleeved with the threaded column;

[0016] An expansion clip is movably sleeved on the outside of a threaded post, and the expansion clip can expand and unfold under the compression of a push ring.

[0017] Preferably, the inside of the pusher cylinder has multiple sliding grooves arranged in a circular array, and the rotating support mechanism cooperates with the inner cavity of the sliding grooves, and a through groove is provided on the inner wall of the sliding grooves.

[0018] Preferably, the threaded post has multiple grooves arranged in a ring array, and the rotating support mechanism is installed inside the grooves.

[0019] Preferably, the rotating support mechanism includes:

[0020] A rotating claw, which is housed inside a groove;

[0021] The elastic insert has a mounting hole at one end of the rotating claw, and the elastic insert is inserted into the mounting hole. The rotating claw is rotatably connected to the threaded column through the elastic insert.

[0022] An elastic support frame is fixedly installed inside the groove, and the elastic support frame is used to provide elastic support for the rotating claw.

[0023] Preferably, the elastic insert includes:

[0024] A spring, wherein the spring is disposed inside the mounting hole;

[0025] The inserting shaft is connected to both ends of the spring, and the inner walls on both sides of the groove are provided with inserting holes that cooperate with the inserting shaft.

[0026] The technical effects and advantages of this utility model are as follows:

[0027] This invention utilizes a combination of a propulsion mechanism and a rotating support mechanism. The nut seat facilitates the linear sliding of the push cylinder under the constraint of the threaded column. This allows the propulsion ring to push and expand the expansion clamp while no longer limiting or blocking the position of the rotating claw. The elastic support frame facilitates the extension of the rotating claw, allowing each rotating claw to rotate and unfold in an umbrella-like shape around the elastic insert as the center, tilting and locking into the pre-drilled hole to form a diagonal brace, thereby further increasing the anchoring capacity. Attached Figure Description

[0028] Figure 1This is a schematic diagram of the overall structure of this utility model.

[0029] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0030] Figure 3 This is a schematic diagram of the rotating support mechanism of this utility model.

[0031] Figure 4 This is a top view of the internal structure of the elastic insertion part of this utility model.

[0032] In the diagram: 1. Fastening mechanism; 11. Threaded column; 12. Nut seat; 13. Expansion cone; 2. Propulsion mechanism; 21. Push cylinder; 211. Slide groove; 212. Through groove; 22. Propulsion ring; 23. Expansion clamp; 3. Rotary support mechanism; 31. Rotary claw; 32. Elastic through-hole insert; 321. Spring; 322. Through-hole rotating shaft; 33. Elastic support frame. Detailed Implementation

[0033] 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.

[0034] This utility model provides, for example Figure 1-4 The heavy-duty anchor bolt with tensioning function shown includes: a fastening mechanism 1, which is arranged in a straight line; a pushing mechanism 2, which is sleeved on the outside of the fastening mechanism 1, and the fastening mechanism 1 is used to compress and expand the pushing mechanism 2; and a rotating support mechanism 3, which is installed on the fastening mechanism 1 in a ring array, and the multiple rotating support mechanisms 3 can be rotated open when the pushing mechanism 2 no longer blocks them.

[0035] The fastening mechanism 1 includes: a threaded post 11 with external threads on its exterior; a nut seat 12 threaded to one end of the threaded post 11; and an expansion cone 13 fixedly connected to the other end of the threaded post 11. By inserting the anchor bolt into a pre-drilled hole and rotating the nut seat 12, the nut seat 12 can push the push cylinder 21, causing the push ring 22 to move the expansion clamp 23 toward the expansion cone 13. The positioning and guiding function of the expansion cone 13 facilitates the expansion clamp 23 to expand and unfold.

[0036] The propulsion mechanism 2 includes: a push cylinder 21, which is slidably sleeved with the threaded column 11; a propulsion ring 22, which is disposed at one end of the push cylinder 21 and is slidably sleeved with the threaded column 11; and an expansion clamp 23, which is movably sleeved on the outside of the threaded column 11 and can expand and unfold under the compression of the propulsion ring 22. The push cylinder 21 has multiple sliding grooves 211 arranged in a ring array inside. The rotating support mechanism 3 cooperates with the inner cavity of the sliding groove 211. The inner wall of the sliding groove 211 has a through groove 212. The cooperation between the rotating claw 31 and the inner cavity of the sliding groove 211 facilitates the limiting of the sliding of the push cylinder 21 and prevents the push cylinder 21 from rotating arbitrarily during sliding. The inner wall of the sliding groove 211 can block and limit the rotating claw 31 to keep the rotating claw 31 in the groove. When the push cylinder 21 slides to the position of the inner cavity of the through groove 212 corresponding to the position of the rotating claw 31, the inner wall of the sliding groove 211 no longer limits the position of the rotating claw 31. Thus, under the elastic support of the elastic support frame 33, it can rotate and open to form a diagonal brace to prevent the anchor bolt from being pulled outward. Compared with traditional anchor bolts, the pull-out resistance no longer relies solely on expansion friction, but directly resists the tension through diagonal jamming.

[0037] Specifically, the threaded column 11 has multiple grooves arranged in a ring array. The rotating support mechanism 3 is installed inside the grooves, which facilitate the storage of the rotating claw 31. In normal operation, the rotating support mechanism 3 is retracted inside the threaded column 11 under the obstruction of the push cylinder 21. The rotating support mechanism 3 includes: a rotating claw 31, which is stored inside the groove; an elastic insert 32, with a mounting hole at one end of the rotating claw 31, through which the elastic insert 32 is inserted and installed, and the rotating claw 31 is rotatably connected to the threaded column 11 via the elastic insert 32; and an elastic support frame 33, which is fixedly installed inside the groove and provides elastic support for the rotating claw 31. The nut seat 12 facilitates the linear sliding of the push cylinder 21 under the limitation of the threaded column 11, allowing the push ring 22 to support the expansion clamp. While the plate 23 expands, it no longer limits or obstructs the position of the rotating claw 31. The elasticity of the elastic support frame 33 facilitates the ejection of the rotating claw 31, allowing each rotating claw 31 to rotate and unfold in an umbrella-like shape around the elastic insert 32 as the center, tilting and locking into the pre-drilled hole to form a diagonal brace, thereby further increasing the anchoring capacity. The elastic support frame 33 is L-shaped and made of elastic material, which facilitates the elastic support of the rotating claw 31 for its rotational ejection.

[0038] The elastic insert 32 includes: a spring 321, which is disposed inside the mounting hole; and an insert shaft 322, which is connected to both ends of the spring 321. Insertion holes that mate with the insert shaft 322 are provided on the inner walls of both sides of the groove. When assembling the relative positions of the rotating claw 31 and the threaded post 11, the spring 321 and the insert shaft 322 are first inserted into the mounting hole. Then, the end of the rotating claw 31 is inserted into the groove until the insert shaft 322 is aligned with the inner cavity of the insert hole. The elastic support force of the spring 321 provides outward elastic support for the insert shaft 322, pushing it into the insert hole. This allows the insert shaft 322 to be inserted between the rotating claw 31 and the threaded post 11, facilitating the rotation of the rotating claw 31 around the axis of the insert shaft 322.

[0039] 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 heavy-duty anchor with a stretching action, characterized in that, include: Fastening mechanism (1), wherein the fastening mechanism (1) is arranged in a straight line; The propulsion mechanism (2) is sleeved on the outside of the fastening mechanism (1), and the fastening mechanism (1) is used to compress and expand the propulsion mechanism (2); Rotary support mechanism (3), which is mounted in a ring array on fastening mechanism (1), and multiple rotary support mechanisms (3) can be rotated open when the propulsion mechanism (2) no longer blocks them; The fastening mechanism (1) includes: Threaded post (11), the threaded post (11) has an external thread on its outside; Nut seat (12), which is threaded to one end of threaded post (11); An expansion cone (13) is fixedly connected to the other end of a threaded column (11); The propulsion mechanism (2) includes: Push cylinder (21), which is slidably sleeved with threaded column (11); A push ring (22) is disposed at one end of a push cylinder (21), and the push ring (22) is slidably sleeved with a threaded post (11); The expansion clip (23) is movably sleeved on the outside of the threaded post (11), and the expansion clip (23) can expand and unfold under the compression of the push ring (22); The threaded column (11) has multiple grooves arranged in a ring array, and the rotating support mechanism (3) is installed inside the grooves; The rotating support mechanism (3) includes: Rotating claw (31), the rotating claw (31) is housed inside the groove; The elastic insert (32) has an installation hole at one end of the rotating claw (31), and the elastic insert (32) is inserted into the installation hole. The rotating claw (31) is rotatably connected to the threaded column (11) through the elastic insert (32). An elastic support frame (33) is fixedly installed inside the groove and is used to provide elastic support for the rotating claw (31).

2. A heavy-duty anchor with a stretching action according to claim 1, characterized in that The push cylinder (21) has multiple sliding grooves (211) arranged in a ring array inside, and the rotating support mechanism (3) cooperates with the inner cavity of the sliding groove (211). A through groove (212) is provided on the inner wall of the sliding groove (211).

3. A heavy-duty anchor with stretching action according to claim 1, characterized in that, The elastic insert (32) includes: Spring (321), the spring (321) is disposed inside the mounting hole; through shaft (322), the through shaft (322) is respectively connected to both ends of the spring (321), and through holes that cooperate with the through shaft (322) are provided on both sides of the inner wall of the groove.

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