Anchoring rod and method for testing anchoring force

Abstract

The application provides an anchor rod and an anchoring force testing method, and relates to the technical field of anchors, and specifically discloses an anchor rod and an anchoring force testing method. The anchor rod is of a hollow structure, one end of the anchor rod is provided with a plugging pre-buried groove moving thread, the plugging pre-buried groove moving thread extends along the axial direction of the anchor rod, and the surface of the anchor rod is provided with a plurality of pre-buried groove inner wall support branch plates arranged along the spiral line direction. The anchor rod is inserted into the inside of the pre-buried groove, then the pre-buried groove inner wall support branch plates are supported open by using a starting mechanism, the pre-buried groove inner wall support branch plates are arranged at an angle with the anchor rod, the plurality of pre-buried groove inner wall support branch plates can be in contact with the inner wall of the pre-buried groove, so that the overall stability can be enhanced, the support is facilitated, meanwhile, the plurality of pre-buried groove inner wall support branch plates can also play the role of reinforcing ribs when subsequent injection is carried out, the connection between the concrete and the anchor rod is more firm, the service life is prolonged, the overall strength is enhanced, the breaking condition is further avoided, and long-time work is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of anchor rods, in particular to an anchor rod and an anchoring force testing method. BACKGROUND

[0002] An anchor rod is the most basic component of roadway support in contemporary coal mines, which reinforces the surrounding rock of the roadway together, so that the surrounding rock supports itself. Anchor rods are not only used in mines, but also in engineering technology to reinforce the main body of slopes, tunnels and dam bodies. As a deep-tensioning component, one end of the anchor rod is connected with the engineering structure, and the other end is deep into the stratum. The whole anchor rod is divided into a free section and an anchoring section. The free section is the area that transmits the tension at the anchor rod head to the anchoring body. Its function is to apply pre-stress to the anchor rod.

[0003] During underground engineering construction, anchor rods are often used for reinforcement. Most current anchor rods do not have branch mechanisms. When grouting, the mortar or cement slurry only covers the surface of the anchor rod, and the bonding force is not enough, which can easily cause the anchor rod to fail. It is difficult to vertically grout the tunnel vault, and it is difficult to play the anchoring and pulling suspension function of the anchor rod.

[0004] Therefore, an anchor rod and an anchoring force testing method are provided. The anchor rod has an inverted fishbone structure. After the anchor rod is pushed into the hole, the expanded fishbone structure can embed the anchor rod into the wall. The bonding force of the mortar and the anchoring force of the fishbone structure produce double anchoring forces, which improve the pullout resistance of the anchor rod. In the case where there is no mortar or cement slurry in the tunnel vault, the anchoring force provided by the inverted fishbone structure can also meet the pullout resistance requirements. SUMMARY

[0005] Therefore, the embodiments of the present application aim to provide an anchor rod and an anchoring force testing method to solve or alleviate the technical problems in the prior art, and at least provide a beneficial alternative.

[0006] The technical scheme of the embodiments of the present application is as follows: an anchor rod, comprising an anchor rod, the anchor rod is a hollow structure, one end of the anchor rod is provided with a plugging pre-buried groove moving thread, the plugging pre-buried groove moving thread extends along the axial direction of the anchor rod, the surface of the anchor rod is provided with a plurality of pre-buried groove inner wall support branch plates in the direction of a spiral line, the plugging pre-buried groove moving thread extends to near the pre-buried groove inner wall support branch plate, the pre-buried groove inner wall support branch plate has a default state and a starting state;

[0007] The bottom of the pre-buried groove inner wall support branch plate is parallel to the axial direction of the anchor rod in the default state, and in the starting state of the pre-buried groove inner wall support branch plate, it forms an angle with the anchor rod, so that the pre-buried groove inner wall support branch plate as a whole is in a vertical state, and the top thereof is in contact with the pre-buried groove inner wall;

[0008] The inside of the anchor rod is provided with a strutting mechanism, which can drive the inner wall supporting branch plate in the embedded groove to change from the default state to the starting state.

[0009] Preferably, a plurality of hinge grooves are arranged on the surface of the anchor rod, and each of the hinge grooves is composed of three hinge grooves uniformly distributed around the circumferential surface of the anchor rod.

[0010] Preferably, one end of the inner wall supporting branch plate of the embedded groove is provided with an embedded groove inner wall supporting fold plate, and the embedded groove inner wall supporting fold plate is at an angle with the inner wall supporting branch plate of the embedded groove.

[0011] Preferably, the strutting mechanism comprises a starting strutting rod, the surface of the starting strutting rod is provided with three supporting arc-shaped blocks, the inside of the anchor rod is fixedly provided with a fixed guide rod, the center of the starting strutting rod is provided with a guide hole, the guide hole is matched with the fixed guide rod, and one end of the inner wall supporting branch plate of the embedded groove is provided with an arc-shaped groove, so that the supporting arc-shaped blocks can pass through the arc-shaped groove.

[0012] Preferably, one end of the anchor rod is provided with an embedded groove plugging movable cylinder, the inside of the embedded groove plugging movable cylinder is provided with a thread matched with the plugging embedded groove movable thread, and the surface of the embedded groove plugging movable cylinder is fixedly provided with an embedded groove plugging plate.

[0013] A use method of the anchor rod comprises the following steps.

[0014] Step one: first, an embedded groove is arranged at a predetermined position, then the anchor rod is sent into the inside of the embedded groove, and the anchor rod is concentric with the embedded groove.

[0015] Step two: the starting strutting rod is sent into the inside of the anchor rod, the guide hole is sleeved on the surface of the fixed guide rod, the supporting arc-shaped blocks are aligned with the arc-shaped groove, then the supporting arc-shaped blocks pass through the arc-shaped groove and move backward until they reach the innermost part of the anchor rod, then the starting strutting rod is rotated to dislocate the supporting arc-shaped blocks and the arc-shaped groove, then the starting strutting rod is pulled, and the starting strutting rod collides with one end of the inner wall supporting branch plate of the embedded groove in the movement, drives the inner wall supporting branch plate of the embedded groove to bend, and changes the inner wall supporting branch plate of the embedded groove to the starting state.

[0016] Step three: the embedded groove plugging movable cylinder is rotated, and under the action of the plugging embedded groove movable thread, the embedded groove plugging movable cylinder moves to the distal end of the anchor rod and stops at the plugging embedded groove hole.

[0017] Anchoring force testing method, using anchor rod tension testing device testing, anchor rod tension testing device includes test table, the top of the test table is provided with driving mechanism, the driving mechanism is connected with the moving plate, the top of the moving plate is provided with the second sliding groove, the second sliding groove is provided with two clamping blocks inside, the top of two clamping blocks is commonly connected with the second screw rod, one end of the second screw rod is fixedly provided with the handle;

[0018] One end of the test table is fixedly provided with a support frame, a rotating rod is rotatably arranged in the support frame, and a mounting frame is arranged on the surface of the rotating rod.

[0019] The test steps include:

[0020] Insert one end of the anchor rod into the two clamping blocks;

[0021] Place the anchor rod on the top of the rotating rod, then rotate the second screw rod, and under the action of the second screw rod, control the two clamping blocks to move close to each other to clamp and fix the anchor rod;

[0022] After clamping is completed, start the driving motor, rotate the first screw rod by the driving motor, and move the moving plate, so that one end of the anchor rod is in contact with the pressure tester, and the tension of the anchor rod is tested by the pressure tester.

[0023] Preferably, the driving mechanism includes a first sliding groove opened in the top of the test table, a first screw rod rotatably arranged in the first sliding groove, and a driving motor fixedly arranged at the other end of the test table, and the moving plate is threadedly connected with the first screw rod.

[0024] The above technical scheme is adopted in the embodiment of the application, and the following advantages are achieved:

[0025] Firstly, the anchor rod can be inserted into the pre-buried groove, and then the pre-buried groove inner wall support branch plate is supported open by using the starting mechanism, so that the pre-buried groove inner wall support branch plate and the anchor rod form an angle device, and multiple pre-buried groove inner wall support branch plates can be in contact with the inner wall of the pre-buried groove, thereby enhancing the overall stability, facilitating support, and at the same time, during subsequent injection molding, the multiple pre-buried groove inner wall support branch plates can also play the role of reinforcing ribs, making the connection between the concrete and the anchor rod more firm, prolonging the service life, enhancing the overall strength, further avoiding the breaking condition, and facilitating long-time work.

[0026] Secondly, the hinged pre-buried groove inner wall support branch plate is convenient to move, the hinged groove is convenient to change the state of the pre-buried groove inner wall support branch plate, and the pre-buried groove inner wall support branch plate can be used for conveying concrete from the inside of the anchor rod and conveniently discharging the concrete outward, so that the pre-buried groove inner wall support branch plate is conveniently poured, the pre-buried groove inner wall support branch plate can increase the contact area between the pre-buried groove inner wall support branch plate and the pre-buried groove inner wall, increase the stability of the connection, prevent the pre-buried groove inner wall support branch plate from moving, and effectively prolong the service life of the whole.

[0027] Thirdly, when the pre-buried groove inner wall support branch plate is expanded, the starting expansion rod is inserted into the inside of the anchor rod, the fixed guide rod is inserted into the inside of the guide hole, the starting expansion rod is conveniently guided through the fixed guide rod and the guide hole, the starting expansion rod is moved downward along the fixed guide rod by rotating the starting expansion rod, in the movement, the support arc-shaped block contacts the bottom of the pre-buried groove inner wall support branch plate and drives the pre-buried groove inner wall support branch plate to move, so that the pre-buried groove inner wall support branch plate is adjusted to a vertical state, conveniently contacts the inner wall of the pre-buried groove, and the arc-shaped groove does not affect the rotation of the starting expansion rod when the starting expansion rod rotates, so that the starting expansion rod is conveniently moved.

[0028] The above summary is only for the purpose of the description and is not intended to limit in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features will become apparent to those skilled in the art from the drawings and the following detailed description. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0030] Figure 1 It is a first perspective view of the present application;

[0031] Figure 2 It is a second perspective view of the present application;

[0032] Figure 3 It is a perspective view of the fixed guide rod of the present application;

[0033] Figure 4 It is a sectional view of the anchor rod of the present application;

[0034] Figure 5 It is a perspective view of the starting expansion rod of the present application;

[0035] Figure 6This is a three-dimensional structural diagram of the tensile testing device of the present invention.

[0036] Reference numerals in the attached drawings: 1. Anchor bolt; 2. Threaded movement of the pre-embedded groove; 3. Pre-embedded groove sealing plate; 4. Pre-embedded groove sealing moving cylinder; 5. Branch plate supporting the inner wall of the pre-embedded groove; 6. Folded plate supporting the inner wall of the pre-embedded groove; 7. Hinge groove; 8. Fixed guide rod; 9. Arc groove; 10. Starting support rod; 11. Support arc block; 12. Guide hole; 13. Test platform; 14. First slide groove; 15. First lead screw; 16. Drive motor; 17. Moving plate; 18. Second slide groove; 19. Clamping block; 20. Second lead screw; 21. Handle; 22. Support frame; 23. Rotating rod; 24. Pressure tester. Detailed Implementation

[0037] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0038] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0039] like Figures 1-6 As shown, this embodiment of the invention provides an anchor bolt, including an anchor bolt 1, which has a hollow structure. One end of the anchor bolt 1 has a pre-embedded groove moving thread 2, which extends axially along the anchor bolt 1. Multiple pre-embedded groove inner wall support branch plates 5 are arranged along a spiral direction on the surface of the anchor bolt 1. The pre-embedded groove moving thread 2 extends close to the pre-embedded groove inner wall support branch plates 5. The pre-embedded groove inner wall support branch plates 5 have a default state and an active state. In the default state, the bottom of the pre-embedded groove inner wall support branch plate 5 is parallel to the axial direction of the anchor bolt 1. In the active state, it forms a 90-degree angle with the anchor bolt 1, making the pre-embedded groove inner wall support branch plate 5 vertical, with its top in contact with the inner wall of the pre-embedded groove. The anchor rod 1 has an internal spreading mechanism that can move the inner wall support branch plate 5 of the embedded groove, changing it from the default state to the activated state. In use, the anchor rod can be inserted into the embedded groove, and then the activation mechanism can be used to spread the inner wall support branch plate 5, making it form a 90-degree angle with the anchor rod 1. Multiple inner wall support branch plates 5 can contact the inner wall of the embedded groove, thereby enhancing overall stability and facilitating support. Simultaneously, during subsequent injection molding, the multiple inner wall support branch plates 5 also act as reinforcing ribs, making the connection between the concrete and the anchor rod 1 more secure, extending service life, increasing overall strength, further preventing breakage, and facilitating long-term operation.

[0040] In this embodiment, specifically: the surface of the anchor rod 1 is provided with a plurality of hinged grooves 7, a plurality of hinged grooves 7 extend along the axial direction of the anchor rod 1 and extend to the distal end of the anchor rod 1, each group of hinged grooves 7 is composed of three hinged grooves 7 uniformly distributed around the circumferential surface of the anchor rod 1, the pre-buried groove inner wall support branch plate 5 is arranged inside the hinged groove 7 through the shaft hinge, one end of the pre-buried groove inner wall support branch plate 5 extends to the inside of the anchor rod 1 through the hinged groove 7, one end of the pre-buried groove inner wall support branch plate 5 is formed with a pre-buried groove inner wall support flap 6, the pre-buried groove inner wall support flap 6 and the pre-buried groove inner wall support branch plate 5 form a 90-degree angle; the hinged pre-buried groove inner wall support branch plate 5 is convenient to move, the hinged groove 7 is convenient for the pre-buried groove inner wall support branch plate 5 to change state, and at the same time, the concrete can be conveyed from the inside of the anchor rod 1 during pouring, the hinged groove 7 is convenient for the concrete to flow outwards, and pouring is convenient. The pre-buried groove inner wall support flap 6 can increase the contact area between the pre-buried groove inner wall support branch plate 5 and the inner wall of the pre-buried groove 5, increase the stability of the connection, prevent the activity from occurring, and effectively prolong the service life.

[0041] In this embodiment, specifically: the support mechanism includes a starting support rod 10, the surface of the starting support rod 10 has three support arc blocks 11, the inside of the anchor rod 1 is fixedly provided with a fixed guide rod 8, the center of the starting support rod 10 is provided with a guide hole 12, the guide hole 12 is matched with the fixed guide rod 8, one end of the pre-buried groove inner wall support branch plate 5 is provided with an arc-shaped groove 9, and the support arc block 11 is convenient to pass through; when the pre-buried groove inner wall support branch plate 5 is expanded, the starting support rod 10 is inserted into the inside of the anchor rod 1, the fixed guide rod 8 is inserted into the inside of the guide hole 12, the starting support rod 10 is guided through the fixed guide rod 8 and the guide hole 12, and under the action of the thread, rotating the starting support rod 10 can make the starting support rod 10 move along the fixed guide rod 8. In the movement, the support arc block 11 will contact the bottom of the pre-buried groove inner wall support branch plate 5, drive the pre-buried groove inner wall support branch plate 5 to move, so that the pre-buried groove inner wall support branch plate 5 can be adjusted to a vertical state, which is convenient for contacting the inner wall of the pre-buried groove. The arc-shaped groove 9 can not affect the rotation of the starting support rod 10 when the starting support rod 10 rotates, and the former is convenient to move.

[0042] In this embodiment, specifically: one end of the anchor rod 1 is provided with a pre-buried groove sealing movable cylinder 4, the inside of the pre-buried groove sealing movable cylinder 4 is provided with a thread matched with the sealing pre-buried groove movable thread 2, and the surface of the pre-buried groove sealing movable cylinder 4 is fixedly provided with a pre-buried groove sealing plate 3; after the arrangement is completed, the pre-buried groove sealing movable cylinder 4 can be rotated, the pre-buried groove sealing movable cylinder 4 can be driven to move through the sealing pre-buried groove movable thread 2, so as to drive the pre-buried groove sealing plate 3 to move, which is convenient for sealing the slot of the pre-buried groove.

[0043] The application relates to a method for using an anchor rod, which comprises the following steps: step one, first forming a pre-buried groove at a predetermined position, then sending the anchor rod 1 into the pre-buried groove, and aligning the anchor rod 1 with the pre-buried groove;

[0044] Step two, sending the starting expansion rod 10 into the anchor rod 1, sleeving the guide hole 12 on the surface of the fixed guide rod 8, aligning the supporting arc-shaped block 11 with the arc-shaped groove 9, then moving the supporting arc-shaped block 11 through the arc-shaped groove 9 backward until the supporting arc-shaped block 11 reaches the innermost part of the anchor rod 1, then rotating the starting expansion rod 10 to dislocate the supporting arc-shaped block 11 and the arc-shaped groove 9, then pulling the starting expansion rod 10, and colliding the starting expansion rod 10 with one end of the pre-buried groove inner wall supporting branch plate 5 during movement, so that the pre-buried groove inner wall supporting branch plate 5 is bent and is brought into the starting state;

[0045] Step three, rotating the pre-buried groove plugging moving cylinder 4, and moving the pre-buried groove plugging moving cylinder 4 to the distal end of the anchor rod 1 under the action of the plugging pre-buried groove moving thread 2 until the pre-buried groove plugging moving cylinder 4 plugs the pre-buried groove hole.

[0046] The application relates to an anchoring force testing method, which is tested by an anchor rod tension testing device, wherein the anchor rod tension testing device comprises a testing table 13, the top of the testing table 13 is provided with a driving mechanism, the driving mechanism is connected with a moving plate 17, the top of the moving plate 17 is provided with a second sliding groove 18, two clamping blocks 19 are arranged in the second sliding groove 18, the top of the two clamping blocks 19 is threadedly connected with a second screw rod 20, one end of the second screw rod 20 is fixedly provided with a handle 21, one end of the testing table 13 is fixedly provided with a supporting frame 22, the supporting frame 22 is rotationally provided with a rotating rod 23, the surface of the testing table 13 is provided with a mounting frame, the surface of the mounting frame is fixedly provided with a pressure tester 24, the driving mechanism comprises a first sliding groove 14 formed in the top of the testing table 13, a first screw rod 15 rotationally arranged in the first sliding groove 14, and a driving motor 16 fixedly arranged at the other end of the testing table 13, and the moving plate 17 is threadedly connected with the first screw rod 15; when the tension of the anchor rod is tested, one end of the anchor rod can be inserted into the two clamping blocks 19, the anchor rod is placed on the top of the rotating rod 23, then the second screw rod 20 is rotated, the two clamping blocks 19 are controlled to move close to each other under the action of the second screw rod 20, so that the anchor rod can be clamped and fixed, the driving motor 16 is started after clamping is completed, the first screw rod 15 is driven to rotate through the driving motor 16, so that the moving plate 17 is driven to move, one end of the anchor rod is in contact with the pressure tester 24, and the tension of the anchor rod can be tested through the pressure tester 24.

[0047] The anchor rod is inserted into the pre-buried groove, and then the starting mechanism is used to open the pre-buried groove inner wall support branch plate 5, so that the pre-buried groove inner wall support branch plate 5 is at a 90-degree angle with the anchor rod 1, and the plurality of pre-buried groove inner wall support branch plates 5 can be in contact with the inner wall of the pre-buried groove, thereby enhancing the overall stability, facilitating support, and when subsequent injection is performed, the plurality of pre-buried groove inner wall support branch plates 5 can also play the role of a reinforcing rib, making the connection between the concrete and the anchor rod 1 more secure, prolonging the service life, enhancing the overall strength, further avoiding the occurrence of breakage, and facilitating long-term work.

[0048] The hinged pre-buried groove inner wall support branch plate 5 is convenient to move, the hinge groove 7 is convenient for the pre-buried groove inner wall support branch plate 5 to change state, and when pouring, the concrete can be transported from the inside of the anchor rod 1, and the concrete can flow out through the hinge groove 7, facilitating pouring, and the pre-buried groove inner wall support folding plate 6 can increase the contact area between the pre-buried groove inner wall support branch plate 5 and the inner wall of the pre-buried groove 5, increase the stability of the connection, prevent movement, and effectively prolong the overall service life.

[0049] When opening the pre-buried groove inner wall support branch plate 5, the starting opening rod 10 is inserted into the inside of the anchor rod 1, the fixed guide rod 8 is inserted into the inside of the guide hole 12, the fixed guide rod 8 and the guide hole 12 are used to guide the starting opening rod 10, and under the action of the screw, rotating the starting opening rod 10 can make the starting opening rod 10 move downward along the fixed guide rod 8. During movement, the support arc block 11 will contact the bottom of the pre-buried groove inner wall support branch plate 5, drive the pre-buried groove inner wall support branch plate 5 to move, so as to adjust the pre-buried groove inner wall support branch plate 5 to a vertical state, facilitate contact with the inner wall of the pre-buried groove, and the arc-shaped groove 9 can not affect the rotation of the starting opening rod 10 when the starting opening rod 10 rotates, facilitating the movement of the former.

[0050] When testing the tension of the anchor rod, one end of the anchor rod is inserted into the two clamping blocks 19, the anchor rod is placed on the top of the rotating rod 23, then the second screw rod 20 is rotated, the two clamping blocks 19 are controlled to move close to each other under the action of the second screw rod 20, so as to clamp and fix the anchor rod, and after clamping is completed, the driving motor 16 is started, the first screw rod 15 is driven to rotate by the driving motor 16, so as to drive the moving plate 17 to move, one end of the anchor rod is in contact with the pressure tester 24, and the tension of the anchor rod can be tested by the pressure tester 24.

[0051] The above merely illustrates the specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of various changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An anchor bolt, comprising an anchor bolt (1), wherein the anchor bolt (1) is a hollow structure, characterized in that: One end of the anchor rod (1) is provided with a sealing pre-embedded groove moving thread (2), the sealing pre-embedded groove moving thread (2) extends along the axial direction of the anchor rod (1), and the surface of the anchor rod (1) is provided with multiple pre-embedded groove inner wall support branch plates (5) arranged along the spiral direction. The sealing pre-embedded groove moving thread (2) extends to near the pre-embedded groove inner wall support branch plate (5), and the pre-embedded groove inner wall support branch plate (5) has a default state and an activation state. In the default state, the bottom of the pre-embedded groove inner wall support branch plate (5) is parallel to the axial direction of the anchor rod (1). In the start state of the pre-embedded groove inner wall support branch plate (5), it forms a 90-degree angle with the anchor rod (1), so that the pre-embedded groove inner wall support branch plate (5) is vertical as a whole, and its top is in contact with the inner wall of the pre-embedded groove. The anchor rod (1) is equipped with a spreading mechanism inside, which can drive the support branch plate (5) on the inner wall of the pre-embedded groove to move, so that it changes from the default state to the start state; The opening mechanism includes an opening rod (10) with three supporting arc-shaped blocks (11) on its surface; a fixed guide rod (8) is fixedly installed inside the anchor rod (1); a guide hole (12) is opened at the axis of the opening rod (10) and the guide hole (12) is adapted to the fixed guide rod (8); an arc-shaped groove (9) is opened at one end of the supporting branch plate (5) on the inner wall of the pre-embedded groove to facilitate the passage of the supporting arc-shaped blocks (11); One end of the anchor rod (1) is provided with a pre-embedded groove sealing moving cylinder (4), and the interior of the pre-embedded groove sealing moving cylinder (4) is provided with a thread that matches the pre-embedded groove moving thread (2). The surface of the pre-embedded groove sealing moving cylinder (4) is fixedly provided with a pre-embedded groove sealing plate (3).

2. An anchor bolt according to claim 1, characterized in that: The anchor rod (1) has multiple sets of hinge grooves (7) on its surface. The multiple sets of hinge grooves (7) are distributed along the axial direction of the anchor rod (1) and extend to the far end of the anchor rod (1). Each set of hinge grooves (7) consists of three hinge grooves (7) evenly distributed around the circumference of the anchor rod (1). The pre-embedded groove inner wall support branch plate (5) is hinged to the inside of the hinge groove (7) by a shaft. One end of the pre-embedded groove inner wall support branch plate (5) extends into the inside of the anchor rod (1) through the hinge groove (7).

3. An anchor bolt according to claim 1, characterized in that: One end of the pre-embedded groove inner wall support branch plate (5) is formed with a pre-embedded groove inner wall support folding plate (6), and the pre-embedded groove inner wall support folding plate (6) and the pre-embedded groove inner wall support branch plate (5) form a 90-degree angle.

4. A method of using an anchor bolt, characterized in that, Includes the following steps: Step 1: First, open a pre-embedded groove at the predetermined location, then send the anchor rod (1) into the interior of the pre-embedded groove, and align the anchor rod (1) with the pre-embedded groove to be concentric; Step 2: Insert the starting support rod (10) into the interior of the anchor rod (1), fit the guide hole (12) onto the surface of the fixed guide rod (8), align the supporting arc block (11) with the arc groove (9), and then move the supporting arc block (11) through the arc groove (9) backward until it reaches the innermost part of the anchor rod (1). Then rotate the starting support rod (10) to make the supporting arc block (11) and the arc groove (9) misaligned. Then pull the starting support rod (10). During the movement, the starting support rod (10) will collide with one end of the pre-embedded groove inner wall support branch plate (5), causing the pre-embedded groove inner wall support branch plate (5) to bend, so that the pre-embedded groove inner wall support branch plate (5) becomes the starting state. Step 3: Rotate the pre-embedded groove sealing moving cylinder (4). Under the action of the pre-embedded groove sealing moving thread (2), the pre-embedded groove sealing moving cylinder (4) will move to the far end of the anchor rod (1) until it reaches the opening of the pre-embedded groove.

5. A method for testing anchoring force, characterized in that, The anchor bolt tension test device is used for testing. The anchor bolt tension test device includes a test platform (13). A drive mechanism is provided on the top of the test platform (13). The drive mechanism is connected to a moving plate (17). A second slide groove (18) is opened on the top of the moving plate (17). Two clamping blocks (19) are provided inside the second slide groove (18). The tops of the two clamping blocks (19) are threadedly connected to a second lead screw (20). A handle (21) is fixedly provided at one end of the second lead screw (20). A support frame (22) is fixedly installed at one end of the test bench (13), and a rotating rod (23) is rotatably installed inside the support frame (22). A mounting frame is installed on the surface of the (13), and a pressure tester (24) is fixedly installed on the surface of the mounting frame. The testing steps include: Insert one end of the anchor rod into the two clamping blocks (19); Place the anchor rod on top of the rotating rod (23), and then rotate the second screw (20). Under the action of the second screw (20), the two clamping blocks (19) will move closer to each other to clamp and fix the anchor rod. After clamping is completed, start the drive motor (16), drive the first lead screw (15) to rotate, drive the moving plate (17) to move, and bring one end of the anchor rod into contact with the pressure tester (24). The tension of the anchor rod is tested by the pressure tester (24).

6. The anchoring force testing method according to claim 5, characterized in that, The drive mechanism includes a first slide groove (14) opened on the top of the test bench (13), a first lead screw (15) rotatably disposed inside the first slide groove (14), and a drive motor (16) fixedly disposed at the other end of the test bench (13). The moving plate (17) is threadedly connected to the first lead screw (15).

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