Traction expansion type cage core capsule anchor rod

Abstract

The invention provides a traction expansion type cage core capsule anchor rod. The traction expansion type cage core capsule anchor rod comprises an anchor rod body, a capsule bag, a supporting mechanism and a traction mechanism. The supporting mechanism is hinged to the anchor rod in the bag; the traction mechanism comprises a traction rope and a movable cross-shaped ring, and the traction rope sequentially penetrates through the supporting mechanism and the anchor rod to be connected to the movable cross-shaped ring; the movable cross ring is arranged on the anchor rod above the bag in a sliding mode and drives the supporting mechanism to be converted into an unfolded state from a folded state through sliding. The supporting mechanism is driven to unfold by the traction rope and the movable cross ring, so that the structural design of the supporting mechanism is simplified, the supporting mechanism is easier to manufacture and use, and the material cost is saved; the device can be suitable for the working condition that the anchor rod is long or the bag is long, and the applicability of the device is improved; through fine design of pin hole positions and connection modes of the outer push rod and the inner push rod, the device has good stability, and the expansion range of the bag is ensured.

Description

Technical Field

[0001] This invention belongs to the field of anchor bolt technology, and in particular relates to a traction-deployable cage core anchor bolt. Background Technology

[0002] Cage-core anchor bolts are a special type of composite anchor bolt commonly used for geotechnical engineering support in deep foundation pits, slopes, tunnels, and other applications. Their core structure includes the anchor bolt as the "cage core," a cage-like steel reinforcement skeleton welded to the lower section of the anchor bolt, and a core. Cement grout is injected after drilling to enclose the steel reinforcement cage and bond it to the surrounding soil and rock mass, thereby enhancing the bearing capacity of the soil and rock.

[0003] For example, Chinese patent CN220555814U discloses a cage-core anchor rod with an internal support structure, consisting of an anchor rod, a cage, and a support mechanism. A movable ring is slidably connected to the outside of the anchor rod. When the movable ring presses down on the support mechanism, the support rod is pushed outward by the upper and lower push rods, quickly supporting the cage and filling the hole first, which is beneficial for forming a structurally complete anchor body inside the cage. However, the support mechanism of this patent requires multiple rods to work together, making the structure complex and difficult to manufacture and use. When used for long cages, multiple sets of anchor rings, upper and lower push rods are needed along the length, further increasing the material and manufacturing costs of the support mechanism. Furthermore, the expandable range of this patent is limited. If the length of the upper and lower push rods is increased, higher stiffness materials are needed to ensure their compressive strength and anti-instability capabilities, further increasing material costs. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a traction-deployable cage core anchor rod, which simplifies the structural design of the support mechanism, makes it easier to manufacture and use, and saves material costs.

[0005] The technical solution adopted in this invention is: a traction-deployable cage-core anchor bolt, including an anchor bolt and a cage, and further including a support mechanism and a traction mechanism; the support mechanism is hinged to the anchor bolt inside the cage; the traction mechanism includes a traction rope and a movable cross ring, the traction rope passing through the support mechanism and the anchor bolt in sequence and connecting to the movable cross ring; the movable cross ring is slidably disposed above the anchor bolt above the cage, and drives the support mechanism from a folded state to an deployed state by sliding.

[0006] Furthermore, the support mechanism includes a support frame and a fixed seat; the fixed seats are evenly spaced along the length of the anchor rod; the support frame includes a support rod and a movable arm, the movable arm is correspondingly arranged with the fixed seat, one end is hinged to the support rod, and the other end is hinged to the fixed seat; the movable arm can be folded or unfolded along the radial direction of the anchor rod.

[0007] Furthermore, several of the support frames are evenly arranged around the fixed base.

[0008] Furthermore, the movable arm includes an outer push rod, a rotating seat, and an inner push rod; the outer push rod and the inner push rod are respectively hinged to both ends of the rotating seat via a first pin; the other end of the outer push rod is hinged to the support rod via a second pin, and the other end of the inner push rod is hinged to the fixed seat via a third pin; the first pin, the second pin, and the third pin are arranged in parallel.

[0009] Furthermore, the connecting seat includes two spaced-apart connecting plates, and two first pins are arranged parallel to each other on the connecting plates; there is a set distance between the two first pins so that the outer push rod and the inner push rod abut at a set connection angle.

[0010] Furthermore, both the outer push rod and the inner push rod are rods with a square cross-section, and a traction hole is provided at the center of the square cross-section; pin holes are provided diagonally on the end faces of the rods along their length; the ends of the outer push rod and the inner push rod with the same pin hole position are connected to the connecting seat.

[0011] Furthermore, the traction hole is also provided at the corresponding position of the support rod and the fixed seat.

[0012] Furthermore, a lower traction hole is provided at the position corresponding to the fixed seat of the anchor rod, and an upper traction hole is provided on the anchor rod above the bag, corresponding to the lower traction hole. The traction rope passes through the lower traction hole and the upper traction hole in succession and is then connected to the movable cross ring.

[0013] Furthermore, the traction ropes connecting the same support rod are connected together in the anchor rod by a rope buckle.

[0014] Furthermore, the traction mechanism also includes a fixed cross ring and a locking buckle. The fixed cross ring is fixed to the anchor rod above the movable cross ring, and the two can be locked together by the locking buckle.

[0015] The advantages and positive effects of this invention are:

[0016] (1) By setting up a traction mechanism, this application uses a traction rope and a movable cross ring to drive the support mechanism to unfold. Compared with the prior art, this simplifies the structural design of the support mechanism, makes it easier to manufacture and use, and saves material costs.

[0017] (2) By connecting the support rod to multiple fixed seats through multiple movable arms, the support mechanism can be set according to the requirements to be suitable for working conditions with long anchor rods or long bags, thus improving the applicability of the device.

[0018] (3) The pin hole positions and connection methods of the outer push rod and the inner push rod are designed in a refined manner so that the outer push rod and the inner push rod can rotate around the hinge point under the drive of the traction rope and make the connection end abut, ensuring the accuracy of the radial length of the anchor rod after the support mechanism is deployed; at the same time, it also ensures the stability of the movable arm after it is deployed, so that it can provide sufficient support to the support rod, thereby ensuring that the bag can be deployed smoothly.

[0019] (4) By setting the connection method of the outer push rod and the inner push rod through the connecting seat, the expansion range of the bag is ensured; compared with the existing technology, the rigidity requirements of the push rod material are reduced. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the pouch when it is not unfolded in an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the overall structure of the pouch when it is unfolded in an embodiment of the present invention;

[0022] Figure 3 This is a cross-sectional view of the internal structure of the pouch when it is not unfolded in an embodiment of the present invention;

[0023] Figure 4 This is a diagram showing the internal structure of the pouch when it unfolds in an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the anchor rod structure in an embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of the support mechanism when it is deployed in an embodiment of the present invention;

[0026] Figure 7 This is a schematic diagram of the support mechanism when it is fully deployed in an embodiment of the present invention;

[0027] Figure 8 This is a schematic diagram of the connection between the outer push rod and the inner push rod in an embodiment of the present invention;

[0028] Figure 9 This is a schematic diagram showing the connection between the inner push rod and the fixed base in an embodiment of the present invention;

[0029] Figure 10 This is a schematic diagram of the connection between the traction rope and the support mechanism in an embodiment of the present invention;

[0030] Figure 11This is a schematic diagram of the connection between the traction rope and the movable cross ring in an embodiment of the present invention;

[0031] Figure 12 This is a schematic diagram of the locking structure in an embodiment of the present invention.

[0032] In the picture:

[0033] 1. Anchor bolt; 2. Bag; 3. Movable cross ring; 4. Fixed cross ring; 5. Third fixed ring; 6. Second fixed ring; 7. First fixed ring; 8. Lock; 9. Threaded fixed ring; 10. Threaded tip; 11. Fixing seat; 12. Traction rope; 13. Support rod; 14. Inner push rod; 15. Outer push rod; 16. Grouting port; 17. Discharge port; 18. Connecting seat. Detailed Implementation

[0034] The embodiments of the present invention will now be described with reference to the accompanying drawings.

[0035] This invention proposes a traction-deployable cage-core anchor bolt for the field of anchor bolt technology. This application utilizes a traction structure to drive the support mechanism to switch between a folded and deployed state, thereby expanding the radius of the support mechanism and causing the cage to open. The support mechanism employs an inner push rod and an outer push rod for rotatable connection, exhibiting good compressive strength and anti-instability capability, and providing a larger deployment range. The overall structure is simple, the connection is reliable, and it is easy to manufacture, reducing material and manufacturing costs. Furthermore, it is convenient to use and can meet the needs of working conditions requiring longer anchor bolt lengths and larger deployment ranges.

[0036] like Figures 1 to 4As shown, this embodiment of the invention proposes a traction-deployable cage core anchor bolt, including an anchor bolt 1, a cage 2, a support mechanism, and a traction mechanism; the support mechanism is hinged to the anchor bolt 1 inside the cage 2; the traction mechanism includes a traction rope 12 and a movable cross ring 3, the traction rope 12 passes through the support mechanism and the anchor bolt 1 in sequence and is connected to the movable cross ring 3; the movable cross ring 3 is slidably disposed above the anchor bolt 1 above the cage 2, and drives the support mechanism from a folded state to an deployed state by sliding. In this embodiment, the anchor rod 1 is a hollow anchor rod 1 with an internal cavity serving as a flow channel for cement grout during grouting. The traction rope 12 passes through the traction mechanism and enters the cavity of the anchor rod 1, then connects to the movable cross ring 3 above the bladder bag 2. By controlling the movable cross ring 3 to slide upward along the anchor rod 1, the length of the traction rope 12 connected to the support mechanism is shortened, thereby driving the support structure to unfold and realizing the transformation of the support mechanism from a folded state to an unfolded state. It can be understood that when the support mechanism is in a folded state, the bladder bag 2 is also in a contracted state; when the support mechanism is in an unfolded state, its radial range expands, causing the bladder bag 2 to expand in volume, accommodating more cement grout, thus forming a complete and robust anchor body within the anchor rod hole. This application simplifies the structural design of the support mechanism by setting a traction mechanism and using the traction rope 12 and the movable cross ring 3 to drive the unfolding of the support mechanism, making it easier to manufacture and use.

[0037] In the embodiments of this application, such as Figures 1 to 5 As shown, the bottom end of the anchor rod 1 is provided with a threaded tip 10, which is threadedly connected to the main body of the anchor rod 1. The main body of the anchor rod 1 above the threaded tip 10 is provided with a first fixing ring 7 and a second fixing ring 6 at intervals. The bottom end and top end of the bag 2 are respectively connected to the first fixing ring 7 and the second fixing ring 6. A threaded fixing ring 9 is also provided above the second fixing ring 6 to reinforce and limit the second fixing ring 6. The top end of the anchor rod 1 is provided with a grouting port 16. The part of the anchor rod 1 between the first fixing ring 7 and the second fixing ring 6 is provided with a discharge port 17. The discharge port 17 is usually set as a rectangular opening. When grouting is performed, cement slurry enters the cavity of the anchor rod 1 from the grouting port 16 and then flows out of the anchor rod 1 through the discharge port 17, filling the closed space enclosed by the bag 2.

[0038] It should be noted that the focus of the traction-deployable cage core bag anchor rod 1 proposed in this embodiment is on the design and description of the support mechanism and traction mechanism. The specific structures of the anchor rod 1 and the bag 2 are relatively conventional and simple, and any structure in the prior art that can achieve its function can be adopted. No detailed description or limitation is given here.

[0039] Furthermore, such as Figures 5 to 7As shown, the support mechanism includes a support frame and a fixed seat 11; the fixed seats 11 are evenly spaced along the length of the anchor rod 1; the support frame includes a support rod 13 and a movable arm; the movable arm is correspondingly provided with one end hinged to the support rod 13 and the other end hinged to the fixed seat 11; the movable arm can be folded or unfolded along the radial direction of the anchor rod 1. In this embodiment, the support rod 13 is arranged along the length direction of the anchor rod 1, and the movable arms are respectively connected to different length positions of the support rod 13. The distance between the hinged parts of the movable arms and the support rod 13 is the same as the distance between the fixed seats 11. The support rod 13 may be attached to or not attached to the inner wall of the bag 2, and is connected to the fixed seats 11 through several movable arms. The movable arms are configured to be hinged to the support rod 13 and the fixed seats 11 respectively, so that the movable arms can be transformed from a folded state to an unfolded state. Specifically, when the movable arms are in the unfolded state, the included angles between the movable arms and the support rod 13, and between the movable arms and the fixed seats 11, will be larger than when they are folded. Through the unfolding of the movable arms, the movable arms extend along the radial length of the anchor rod 1, so that the support rod 13 abuts against the bag 2, thereby driving the bag 2 to unfold.

[0040] It should be noted that the number of movable arms and fixed seats 11 of each support frame can be set according to the length of the anchor rod 1, the length of the bag 2, or the required support strength, and can be two or more; similarly, the spacing between the fixed seats 11 can also be set as needed, and is not limited here.

[0041] Furthermore, in this embodiment, several support frames are evenly arranged around the fixed base 11; the number of support frames can be set differently depending on the shape of the pouch 2; for example, when the cross-sectional shape of the pouch 2 is polygonal, the support frames are set at the corners of the polygon. Through this arrangement, the balance of support frames in supporting different parts of the pouch 2 can be improved, making the pouch 2 more evenly stressed, so that it can unfold to form the desired shape.

[0042] Furthermore, in the embodiments of this application, such as Figures 6 to 9 As shown, the movable arm includes an outer push rod 15, a rotating seat, and an inner push rod 14. The outer push rod 15 and the inner push rod 14 are respectively hinged to both ends of the rotating seat via a first pin. The other end of the outer push rod 15 is hinged to the support rod 13 via a second pin. The other end of the inner push rod 14 is hinged to the fixed seat 11 via a third pin. The first, second, and third pins are arranged in parallel. This arrangement allows relative rotation between the support rod 13 and the outer push rod 15, between the outer push rod 15 and the inner push rod 14, and between the inner push rod 14 and the fixed seat 11, thereby changing the projection of the connection length of the inner push rod 14 and the outer push rod 15 in the radial direction of the anchor rod 1, thus realizing the folding or unfolding of the movable arm.

[0043] In the above embodiments, such as Figure 8As shown. The connecting seat 18 includes two spaced connecting plates, and two first pins are arranged parallel to each other on the connecting plates; there is a set gap between the two first pins so that the outer push rod 15 and the inner push rod 14 abut against each other at a set connection angle. Specifically, when the outer push rod 15 and the inner push rod 14 are respectively hinged to the connecting plate by a first pin, they form an angle; when the movable arm is in the folded state, the outer push rod 15 and the inner push rod 14 abut at a small angle, and when the movable arm is in the unfolded state, the outer push rod 15 and the inner push rod 14 abut at a larger angle; by reasonably setting the spacing between the first pins and the connection position between the first pins and the outer push rod 15 and the inner push rod 14, the angle formed by their abutment in the folded and unfolded states can be controlled, thereby controlling the length of the movable arm extending radially along the anchor rod 1 in the folded and unfolded states; especially in the unfolded state, the connecting seat 18 limits the outer push rod 15 and the inner push rod 14 to ensure the stability of the movable arm, so that it can provide sufficient support to the support rod 13, thereby ensuring that the bag 2 can unfold smoothly.

[0044] In one specific embodiment, both the outer push rod 15 and the inner push rod 14 are rods with square cross-sections. A traction hole is provided at the center of the square cross-section for threading the traction rope 12. Pin holes are provided diagonally on the end faces along the length of the rods. That is, both the outer push rod 15 and the inner push rod 14 have four square end faces along the length of the rod and square connecting end faces at both ends of the square end faces. Each inner push rod 14 and each outer push rod 15 has two pin holes, located diagonally on two opposite square end faces. Simultaneously, the outer push rod 15 and the inner push rod 14... The ends with the same pin hole position are connected to the connecting seat 18; for example, the pin holes of the outer push rod 15 and the inner push rod 14 are both opened at the upper left corner and the lower right corner of the square end face; when the two are connected, the upper left corner end of the outer push rod 15 and the inner push rod 14 can be connected to the connecting seat 18 respectively, or the upper right corner end of the two can be connected to the connecting seat 18 respectively; preferably, the outer push rod 15 and the inner push rod 14 are made of rods with the same structure and specifications, and during installation, the same end of the two rods is connected to the connecting seat 18 so that the connection between the two forms a symmetrical structure; for example, such as Figure 8 As shown, when the ends of the two rods with pin holes at their corners are installed on the connecting seat 18, when folding is required, the bottom of the connecting end faces of the outer push rod 15 and the inner push rod 14 abut together, forming an inverted V-shaped structure; when unfolding is required, the ends of the outer push rod 15 and the inner push rod 14 that are far apart from each other rotate upwards, so that the top of the connecting end faces abut together; since the traction rope 12 is passed through the center of the connecting end face, by tightening the traction rope 12, the gap between the connecting end faces is narrowed, and the rotation and unfolding of the outer push rod 15 and the inner push rod 14 can be controlled.

[0045] In some other embodiments of this application, a connecting rod can be added between the outer push rod 15 and the inner push rod 14. Adjacent rods are connected by a connecting seat 18 as described in the above embodiments, which enables the folding and unfolding of the support mechanism, so that the device can meet the requirement of a larger unfolding range of the pouch 2. Compared with the prior art, which increases the length of the push rod, the rigidity requirement of the push rod material is reduced.

[0046] Furthermore, such as Figure 9 , Figure 10 As shown, the support rod 13 and the fixed seat 11 also have corresponding traction holes; wherein, the starting end of the traction rope 12 is located on the side of the support rod 13 away from the outer push rod 15, and the support rod 13 is provided with a connecting ear on the side near the outer push rod 15, and the second pin is located on the connecting ear; the position of its traction hole corresponds to the position of the traction hole at the connecting end of the outer push rod 15 after it is unfolded; in the above embodiment, when the traction rope 12 is tightened, the outer push rod 15 unfolds and the bottom of its connecting end abuts against the support rod 13, forming a limit on the outer push rod 15; similarly, the position of the traction hole on the fixed seat 11 corresponds to the position of the traction hole at the connecting end of the inner push rod 14 after it is unfolded, in In the above embodiment, the fixed base 11 has a connecting groove, and the third pin is set in the connecting groove. When the traction rope 12 is tightened, the inner push rod 14 unfolds and the bottom of its connecting end abuts against the connecting groove, forming a limit on the outer push rod 15. Through the above technical solution, as long as the traction rope 12 is tightened, the inner push rod 14 and the outer push rod 15 can be rotated around their hinge point. Through the abutment between the two, the abutment between the outer push rod 15 and the support rod 13, and the abutment between the inner push rod 14 and the fixed base 11, the limit on the unfolded state of the movable arm is achieved, ensuring its radial length along the anchor rod 1 after unfolding, and maintaining it in this state, thus ensuring the overall stability of the device.

[0047] In the above embodiment, a lower traction hole is provided at the position corresponding to the fixed seat 11 of the anchor rod 1, and an upper traction hole is also provided on the anchor rod 1 above the bag 2. The positions of the upper traction hole and the lower traction hole are correspondingly arranged in the length direction of the anchor rod 1, so that the traction rope 12 can avoid the discharge port 17 of the anchor rod 1. The traction rope 12 passes through the fixed seat 11 and the lower traction hole into the cavity of the anchor rod 1, and extends upward through the upper traction hole to exit the outside of the anchor rod 1, connecting with the movable cross ring 3 that is slidably provided on the outside of the anchor rod 1. Figure 11As shown, the end of the traction rope 12 is fixed to the movable cross ring 3. By controlling the movable cross ring 3 to slide upward, one end of the traction rope 12 can be moved upward. As the traction rope 12 remaining inside the bag 2 shortens, the outer push rod 15 and the inner push rod 14 rotate around their hinge point, eventually causing the connecting ends of the support rod 13, the outer push rod 15, the inner push rod 14 and the fixed seat 11 to abut against each other, forming a near-straight structure. This pushes the support rod 13 to move away from the anchor rod 1, causing the bag 2 to unfold.

[0048] Furthermore, to ensure that the traction ropes 12 connected to the same support rod 13 can be tightened synchronously, the traction ropes 12 connected to the same support rod 13 pass through the lower traction hole on the anchor rod 1 and are connected together in the anchor rod 1 by rope buckles. Preferably, the rope buckles are rigidly connected to ensure a stable connection between the multiple traction ropes 12.

[0049] Furthermore, the traction mechanism also includes a fixed cross ring 4 and a locking buckle 8. The fixed cross ring 4 is fixed to the anchor rod 1 above the movable cross ring 3, and the two can be locked together by the locking buckle 8. In this embodiment, as... Figure 11 As shown, a third fixing ring 5 is also provided on the anchor rod 1 above the pouch 2. The third fixing ring 5 is located below the movable cross ring 3 and is used to limit the downward movement range of the movable cross ring 3. When the device is in an unused or folded state, the movable cross ring 3 rests on the third fixing ring 5. The distance between the movable cross ring 3 and the fixed cross ring 4 is equal to the movement distance of the traction rope 12 when the device is unfolded. When the movable cross ring 3 moves to the bottom of the fixed cross ring 4, the pouch 2 can just unfold to the set size. Figure 12 As shown, the latch 8 adopts a hollow cuboid structure with one open end. When the movable cross ring 3 moves to the bottom of the fixed cross ring 4, the two support rods overlap. The cavity of the latch 8 matches the shape of the two cross support rods after they overlap and is fastened to the ends of the two support rods to fix the movable cross ring 3 on the fixed cross ring 4.

[0050] The application process of the traction-deployable cage core anchor bolt proposed in this application is as follows:

[0051] S1. Insertion and Positioning: Insert the entire traction-deployable cage core anchor rod 1 into the pre-drilled anchor rod hole, so that the threaded tip 10 at the bottom of the anchor rod 1 is firmly embedded in the bottom of the anchor rod hole, thus completing the initial fixation.

[0052] S2. Deploy the support mechanism: Pull the movable cross ring 3 to below the fixed cross ring 4, and lock the two together with the buckle 8;

[0053] During this process, since the movable cross ring 3 is connected to one end of the traction rope 12, it drives the traction rope 12 to move as a whole. Since the other end of the traction rope 12 passes through the anchor rod 1, the fixed seat 11, the inner push rod 14, and the outer push rod 15 and is connected to the support rod 13, as the traction rope 12 tightens, the gap between the fixed seat 11, the inner push rod 14, the outer push rod 15 and the support rod 13 becomes smaller, thereby driving the inner push rod 14 and the outer push rod 15 to rotate around their hinge point, realizing the unfolding of the support mechanism. At the same time, it drives the bag 2 to unfold, squeezing the sand, gravel, silt and other materials in the anchor hole to the periphery of the hole wall.

[0054] S3. Grouting and filling: Cement grout is injected through the grouting port 16 at the top of the anchor rod 1. The cement grout flows downward along the inside of the anchor rod 1 and is discharged from the outlet 17 into the opened bag 2 until the grout overflows from the top of the grouting port 16 and the bag 2 is completely filled.

[0055] S4. Curing and Shaping: The cement grout inside the bag 2 cures to form the anchor body. Since the bag 2 has been pre-supported and opened before grouting, it is ensured that the anchor body can be completely formed, hard and stable.

[0056] The advantages and positive effects of this invention are:

[0057] (1) By setting up a traction mechanism, this application uses a traction rope and a movable cross ring to drive the support mechanism to unfold. Compared with the prior art, this simplifies the structural design of the support mechanism, makes it easier to manufacture and use, and saves material costs.

[0058] (2) By connecting the support rod to multiple fixed seats through multiple movable arms, the support mechanism can be set according to the requirements to be suitable for working conditions with long anchor rods or long bags, thus improving the applicability of the device.

[0059] (3) The pin hole positions and connection methods of the outer push rod and the inner push rod are designed in a refined manner so that the outer push rod and the inner push rod can rotate around the hinge point under the drive of the traction rope and make the connection end abut, ensuring the accuracy of the radial length of the anchor rod after the support mechanism is deployed; at the same time, it also ensures the stability of the movable arm after it is deployed, so that it can provide sufficient support to the support rod, thereby ensuring that the bag can be deployed smoothly.

[0060] (4) By setting the connection method of the outer push rod and the inner push rod through the connecting seat, the expansion range of the bag is ensured; compared with the existing technology, the rigidity requirements of the push rod material are reduced.

[0061] The embodiments of the present invention have been described in detail above, but the content described is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A traction-deployable cage-core anchor bolt, comprising an anchor bolt and a cage, characterized in that: It also includes a support mechanism and a traction mechanism; the support mechanism is hinged to the anchor rod inside the bag; the traction mechanism includes a traction rope and a movable cross ring, the traction rope passing through the support mechanism and the anchor rod in sequence and connecting to the movable cross ring; the movable cross ring is slidably disposed above the anchor rod above the bag, and drives the support mechanism from a folded state to an unfolded state by sliding.

2. The traction-deployable cage-core anchor bolt according to claim 1, characterized in that: The support mechanism includes a support frame and a fixed seat; the fixed seats are evenly spaced along the length of the anchor rod; the support frame includes a support rod and a movable arm, the movable arm is correspondingly arranged with the fixed seat, one end is hinged to the support rod and the other end is hinged to the fixed seat; the movable arm can be folded or unfolded along the radial direction of the anchor rod.

3. The traction-deployable cage core anchor bolt according to claim 2, characterized in that: Several of the aforementioned support frames are evenly arranged around the fixed base.

4. The traction-deployable cage-core anchor bolt according to claim 2 or 3, characterized in that: The movable arm includes an outer push rod, a rotating seat, and an inner push rod; the outer push rod and the inner push rod are respectively hinged to both ends of the rotating seat by a first pin; the other end of the outer push rod is hinged to the support rod by a second pin, and the other end of the inner push rod is hinged to the fixed seat by a third pin; the first pin, the second pin, and the third pin are arranged in parallel.

5. The traction-deployable cage core anchor bolt according to claim 4, characterized in that: The connecting seat includes two spaced-apart connecting plates, and two first pins are arranged parallel to each other on the connecting plates; there is a set distance between the two first pins so that the outer push rod and the inner push rod abut at a set connection angle.

6. The traction-deployable cage core anchor bolt according to claim 5, characterized in that: Both the outer push rod and the inner push rod are rods with square cross-sections, and a traction hole is provided at the center of the square cross-section; pin holes are provided diagonally on the end faces of the rods along their length; the ends of the outer push rod and the inner push rod with the pin holes in the same position are connected to the connecting seat.

7. The traction-deployable cage core anchor bolt according to claim 6, characterized in that: The support rod and the fixed base are also provided with traction holes at corresponding positions.

8. The traction-deployable cage-core anchor bolt according to claim 7, characterized in that: The anchor rod has a lower traction hole at the position corresponding to the fixed seat, and the anchor rod above the bag has an upper traction hole corresponding to the lower traction hole. The traction rope passes through the lower traction hole and the upper traction hole and is then connected to the movable cross ring.

9. The traction-deployable cage core anchor bolt according to claim 8, characterized in that: The traction ropes connecting the same support rod are connected together in the anchor rod by a rope buckle.

10. The traction-deployable cage-core anchor bolt according to claim 1 or 9, characterized in that: The traction mechanism also includes a fixed cross ring and a locking buckle. The fixed cross ring is fixed to the anchor rod above the movable cross ring, and the two can be locked together by the locking buckle.

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