Anchor rod pulling test device and pipe seam type anchor rod

Abstract

The present invention relates to the field of anchor rod technology, and proposes an anchor rod pull-out test device and a pipe-seam type anchor rod, comprising an anchor rod, the anchor rod having an anchor hole, the side wall of the anchor hole having a first slit, the inner wall of the anchor hole having an inverted cone-shaped protrusion, a reinforcing rod arranged in the anchor hole, the reinforcing rod having an inner cavity, the side wall of the inner cavity having a second slit, the outer wall of the reinforcing rod having a conical protrusion, the conical protrusion abutting against the inverted cone protrusion. Through the above technical solution, the problem of the pipe-seam type anchor rod being unsteady in connection in the prior art is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of anchor rods, and in particular to an anchor rod pulling test device and a pipe seam type anchor rod. Background Art

[0002] In many fields such as geotechnical engineering and underground engineering, anchor rods, as an important supporting structural element, play a key role in ensuring the stability and safety of the project.

[0003] Traditional anchor rods have certain limitations in terms of anchoring performance. Under complex geological conditions, such as cracks in the rock layer and soft soil, when the anchor rod is subjected to external forces such as tension and pressure, it is often difficult to provide sufficient and lasting anchoring force by relying solely on the friction between the single rod body and the anchoring medium or a simple mechanical connection. Moreover, due to the lack of effective elastic deformation and adaptive structure, the anchor rods are prone to loosening and pulling out during long-term stress, which in turn leads to failure of the support structure and affects the overall stability of the project. For example, in mine tunnel support, the ground vibration caused by frequent mining activities may loosen traditional anchor rods, increasing the risk of tunnel collapse; in slope protection projects, the external forces generated by rainwater erosion and soil movement may cause the anchoring force of the anchor rod to decrease, and it is impossible to effectively prevent slope landslides. Summary of the invention

[0004] The present invention provides an anchor rod pulling test device and a pipe seam type anchor rod, which solves the problem of loose connection of the pipe seam type anchor rod in the related art.

[0005] The technical solution of the present invention is as follows:

[0006] A pipe seam anchor, comprising:

[0007] An anchor rod, the anchor rod having an anchor hole, a side wall of the anchor hole having a first slit, and an inner wall of the anchor hole having an inverted cone-shaped protrusion;

[0008] A reinforcing rod is arranged in the anchoring hole, the reinforcing rod has an inner cavity, the side wall of the inner cavity has a second gap, and the outer wall of the reinforcing rod has a conical protrusion, and the conical protrusion abuts against the inverted conical protrusion.

[0009] As a further technical solution, there are a plurality of inverted conical protrusions which are spirally arranged in the anchor hole, and there are a plurality of conical protrusions which are spirally arranged on the outer wall of the reinforcing rod.

[0010] As a further technical solution, one end of the reinforcing rod has a threaded portion, and further comprises:

[0011] A pallet, wherein the reinforcing rod passes through the pallet, and the pallet is located on one side of the threaded portion;

[0012] A locking member, wherein the locking member is slidably disposed on the tray, the locking member comprises a locking portion, the locking portion comprises a swing cavity, and the number of the swing cavities is a plurality;

[0013] A swinging member, wherein the swinging member is swingably disposed in the swinging cavity, and after a plurality of the swinging members swing, they are respectively swung into the first gap or the second gap;

[0014] A pressing piece is threadedly arranged on the threaded portion and pressed on the tray.

[0015] As a further technical solution, the other end of the reinforcing rod has a conical deformation portion, and the conical deformation portions are arranged in a plurality of circles, and a deformation gap is formed between two adjacent conical deformation portions. The end of the conical deformation portion has a clamping portion, and the clamping portion is used to clamp with the end of the anchor rod.

[0016] An anchor rod pulling test device comprises a pipe seam type anchor rod, the pressing member has a connecting hole, and further comprises:

[0017] A first fixing member, wherein the first fixing member has a connecting cavity, the connecting cavity is used to accommodate the pressing member, and the connecting cavity has a through hole;

[0018] A plug connector passes through the through hole and extends into the connecting hole.

[0019] As a further technical solution, it also includes:

[0020] A support member, wherein the first fixing member is slidably disposed on the support member;

[0021] The second fixing member is swingably arranged relative to the supporting member. There are two second fixing members and they are symmetrically arranged. A fixing cavity is formed between the two second fixing members after they are swung. The fixing cavity is used to accommodate the anchor rod.

[0022] As a further technical solution, it also includes:

[0023] A mounting member, the mounting member is swingably arranged on the supporting member, there are two mounting members, the mounting member has a mounting groove, the mounting groove is used to mount the second fixing member, a fixing gap is formed after the two mounting members are swung, and the mounting member has a fixing groove;

[0024] A third fixing member is disposed in the fixing groove, extends into the fixing gap, and is inserted into the first gap and the second gap.

[0025] As a further technical solution, it also includes:

[0026] A first linear driving member, wherein the first linear driving member is disposed on one of the mounting members, and a driving end of the first linear driving member is connected to the other mounting member after movement, so as to drive the two mounting members to swing toward each other;

[0027] A locking bolt and a locking nut, wherein the locking bolt is arranged on one of the mounting parts and passes through the other mounting part, and the locking nut is threadedly arranged on the locking bolt and pressed on the other mounting part;

[0028] A second linear driving member is disposed on the supporting member, and drives the first fixing member to approach or move away from the second fixing member.

[0029] As a further technical solution, the support member includes:

[0030] A first frame, the first fixing member is slidably disposed on the first frame, and the first frame has a slot;

[0031] The second frame has an inserting portion, the slot is used to accommodate the inserting portion, and the mounting piece is swingably arranged on the second frame.

[0032] As a further technical solution, the first frame has a columnar portion, the columnar portion has a slide groove, and the first fixing member is slidably disposed in the slide groove.

[0033] The working principle and beneficial effects of the present invention are:

[0034] In the present invention, the anchor rod body is a cylindrical rod body, and its length is determined according to the actual engineering requirements. The anchor rod has an anchor hole, and the anchor hole penetrates the anchor rod along the axial direction of the anchor rod. A first slit is arranged on the inner wall of the anchor hole, and the first slit starts from one end of the anchor hole and extends a certain length along the axial direction, and the length can account for 1 / 2 - 2 / 3 of the total length of the anchor hole. The width of the first slit is relatively narrow, which can ensure that the anchor rod can produce elastic deformation under a certain external force without affecting its overall structural strength. At the same time, an inverted cone protrusion is also arranged on the inner wall of the anchor hole, and its large end faces the outside of the anchor hole, and the small end faces the end of the anchor rod where the slit is located. This inverted cone design is conducive to cooperating with the conical protrusion on the reinforcing rod to enhance the anchoring force.

[0035] The reinforcing rod is a rod-shaped structure adapted to the anchor hole, and has an inner cavity, which runs through both ends of the reinforcing rod. A second slit is provided on the wall of the inner cavity, and the second slit also extends along the axial direction of the reinforcing rod, and its length and width are similar to the first slit. The existence of the second slit enables the reinforcing rod to produce elastic deformation when subjected to force, which matches the elastic deformation of the anchor rod.

[0036] A conical protrusion is also provided on the outer wall of the inner cavity, and the conical protrusion corresponds to and abuts against the inverted conical protrusion in the anchor hole. The conical protrusions are evenly distributed around the circumference of the inner cavity, and their height, spacing and other parameters match the inverted conical protrusions. The conical protrusion is in the opposite direction of the inverted conical protrusion, and forms a tight abutment structure with the inverted conical protrusion. When the pipe seam anchor is installed in the borehole and subjected to external forces such as tension or pressure, this abutment structure will be tighter, and at the same time, the first gap and the second gap cause the anchor and the reinforcing rod to produce elastic deformation. When subjected to tension, the anchor and the reinforcing rod will tend to extend axially, and the first gap and the second gap will narrow. At this time, the friction between the anchor and the reinforcing rod and the borehole wall increases, and at the same time, the abutment between the conical protrusion and the inverted conical protrusion is more firm, thereby providing a strong anchoring force, ensuring the stability of the anchor in the borehole, effectively preventing the anchor from loosening or pulling out, and achieving a good anchoring effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0038] Figure 1 It is a schematic diagram of the anchor rod, reinforcing rod and related structures of the present invention;

[0039] Figure 2 for Figure 1 A schematic cross-sectional view of the structure at one angle;

[0040] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of C;

[0041] Figure 4 It is a structural schematic diagram of the reinforcing rod in the present invention;

[0042] Figure 5 Schematic diagram of the internal structure of the anchor rod in the present invention

[0043] Figure 6 It is a schematic diagram of the structure of the present invention;

[0044] Figure 7 for Figure 6 A is a schematic diagram of the enlarged structure of the middle part;

[0045] Figure 8 for Figure 7 A schematic diagram of the enlarged structure of B;

[0046] Fig. 9 It is a schematic diagram of a partial cross-sectional structure of the present invention;

[0047] Fig.10 for Fig. 9 Schematic diagram of the enlarged structure of D in the figure.

[0048] In the figure: anchor rod 1, anchor hole 101, first gap 102, inverted cone protrusion 103, reinforcing rod 2, inner cavity 201, second gap 202, cone protrusion 203, threaded portion 204, cone deformation portion 205, deformation gap 206, clamping portion 207, tray 3, locking member 4, locking portion 401, swing cavity 402, swing member 403, pressing member 5, connecting hole 501, first fixing member 6, connecting cavity 60 1, through hole-602, connector-7, support member-8, first frame-801, slot-802, second frame-803, plug-in portion-804, cylindrical portion-805, slide groove-806, second fixing member-9, fixing cavity-901, mounting member-10, mounting groove-1001, fixing gap-1002, fixing groove-1003, third fixing member-11, first linear driving member-12, locking bolt-13, locking cap-14, second linear driving member-15. DETAILED DESCRIPTION

[0049] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0050] In order to simplify the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0051] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0053] Reference Figure 1 to Figure 10, which is the first embodiment of the present invention, proposes a tubular seam anchor rod, including an anchor rod 1, the anchor rod 1 has an anchor hole 101, the side wall of the anchor hole 101 has a first slit 102, the inner wall of the anchor hole 101 has an inverted cone protrusion 103, a reinforcing rod 2 is arranged in the anchor hole 101, the reinforcing rod 2 has an inner cavity 201, the side wall of the inner cavity 201 has a second slit 202, the outer wall of the reinforcing rod 2 has a conical protrusion 203, and the conical protrusion 203 abuts against the inverted cone protrusion 103.

[0054] In this embodiment, the main body of the anchor rod 1 is a cylindrical rod body, and its length is determined according to the actual engineering requirements. The anchor rod 1 has an anchor hole 101, and the anchor hole 101 penetrates the anchor rod 1 along the axial direction of the anchor rod 1. A first slit 102 is provided on the inner wall of the anchor hole 101. The first slit 102 starts from one end of the anchor hole 101 and extends a certain length along the axial direction. The length can account for 1 / 2-2 / 3 of the total length of the anchor hole 101. The width of the first slit 102 is relatively narrow, which can ensure that the anchor rod 1 can produce elastic deformation under a certain external force without affecting its overall structural strength. At the same time, an inverted cone protrusion 103 is also provided on the inner wall of the anchor hole 101, and its large end faces the outside of the anchor hole 101, and the small end faces the end of the anchor rod 1 where the slit is located. This inverted cone design is conducive to cooperating with the cone protrusion 203 on the reinforcing rod 2 to enhance the anchoring force.

[0055] The reinforcing rod 2 is a rod-shaped structure adapted to the anchor hole 101, and the reinforcing rod 2 has an inner cavity 201, and the inner cavity 201 runs through both ends of the reinforcing rod 2. A second slit 202 is provided on the wall of the inner cavity 201, and the second slit 202 also extends along the axial direction of the reinforcing rod 2, and its length and width are similar to the first slit 102. The existence of the second slit 202 enables the reinforcing rod 2 to produce elastic deformation when subjected to force, which matches the elastic deformation of the anchor rod 1.

[0056] A conical protrusion 203 is also provided on the outer wall of the inner cavity 201, and the conical protrusion 203 corresponds to and abuts against the inverted conical protrusion 103 in the anchor hole 101. The conical protrusions 203 are evenly distributed around the circumference of the inner cavity 201, and their height, spacing and other parameters match those of the inverted conical protrusion 103. The conical protrusion 203 is in the opposite direction to the inverted conical protrusion 103, and forms a tight abutment structure with the inverted conical protrusion 103. When the pipe seam anchor is installed in the drilled hole and subjected to external force such as tension or pressure, this abutment structure will be tighter, and at the same time, the first gap 102 and the second gap 202 cause the anchor 1 and the reinforcing rod 2 to produce elastic deformation. When subjected to tension, the anchor rod 1 and the reinforcing rod 2 tend to stretch axially, and the first gap 102 and the second gap 202 become narrower. At this time, the friction between the anchor rod 1 and the reinforcing rod 2 and the borehole wall increases, and at the same time, the abutment between the conical protrusion 203 and the inverted conical protrusion 103 is more firmly established, thereby providing a strong anchoring force, ensuring the stability of the anchor rod 1 in the borehole, effectively preventing the anchor rod 1 from loosening or being pulled out, and achieving a good anchoring effect.

[0057] Furthermore, there are a plurality of inverted cone-shaped protrusions 103 which are spirally arranged in the anchor hole 101 , and there are a plurality of cone-shaped protrusions 203 which are spirally arranged on the outer wall of the reinforcing rod 2 .

[0058] In this embodiment, a plurality of inverted conical protrusions 103 are provided in the anchor hole 101 of the anchor rod 1, and these inverted conical protrusions 103 are arranged in a spiral. This spiral arrangement makes the inverted conical protrusions 103 form a continuous and regular distribution in the anchor hole 101. The outer wall of the reinforcing rod 2 is provided with a plurality of conical protrusions 203, the number of which is the same as the inverted conical protrusions 103, and they are also arranged in a spiral. When the reinforcing rod 2 is inserted into the anchor hole 101, the spirally arranged conical protrusions 203 cooperate with the inverted conical protrusions 103, and the threads enter the anchor hole 101. During the installation process, as the reinforcing rod 2 is gradually inserted into the anchor hole 101, the conical protrusions 203 abut against the inverted conical protrusions 103 one by one along the spiral path.

[0059] This spiral arrangement design has significant advantages in practical applications. When the pipe-seam anchor is subjected to external forces such as tension or torque, the interaction force between the spirally arranged inverted cone protrusions 103 and the cone protrusions 203 will form an effect similar to a spiral lock. In geotechnical engineering, when the anchor 1 is subjected to complex external forces from the surrounding rock and soil, this spiral structure can more effectively disperse stress. Due to the spiral arrangement, it can provide stable anchoring force in all directions. Compared with the traditional uniformly distributed arrangement, it can better resist external forces in different directions, and enhance the stability and anchoring effect of the anchor 1 under complex geological conditions. Moreover, this spiral arrangement method can also make the reinforcing rod 2 more smoothly inserted into the anchor hole 101 during the installation process, reduce resistance and jamming during the installation process, and improve installation efficiency.

[0060] A plurality of inverted cone-shaped protrusions 103 are provided in the anchor hole 101 of the anchor rod 1, and a plurality of cone-shaped protrusions 203 are provided on the reinforcing rod 2, and there is a certain gap between the two. When this pipe-seam type anchor rod is used in a mine tunnel support project, due to the complex geological conditions, such as local squeezing or friction of rocks, during long-term use after installation, some of the inverted cone-shaped protrusions 103 or cone-shaped protrusions 203 may be damaged. For example, 1-2 inverted cone-shaped protrusions 103 may be locally worn or partially cracked, and accordingly, the cone-shaped protrusions 203 that cooperate with them may also be damaged to a certain extent.

[0061] However, since the conical protrusions 203 and the inverted conical protrusions 103 are distributed with gaps and they are relatively large in number, even if some of them are damaged, the other intact conical protrusions 203 and inverted conical protrusions 103 can still continue to function. The mutual abutment between the remaining conical protrusions 203 and the inverted conical protrusions 103 can still provide sufficient anchoring force for the anchor rod 1. This structural design enables the anchor rod 1 to maintain high reliability in complex and harsh geological environments. In the entire anchoring system, even if a local protrusion has a problem, it will not cause a sharp drop or failure in the overall anchoring force like the traditional tightly arranged and gapless anchoring structure, thereby ensuring the safety and stability of the tunnel support, reducing the frequent repair or replacement of the anchor rod 1 due to damage to individual protrusions, and reducing engineering maintenance costs and safety risks.

[0062] Furthermore, one end of the reinforcing rod 2 has a threaded portion 204, and also includes a tray 3. The reinforcing rod 2 passes through the tray 3, and the tray is located on one side of the threaded portion 204. The locking member 4 is slidably set on the tray 3. The locking member 4 has a locking portion 401, and the locking portion 401 has a swinging cavity 402. There are several swinging cavities 402, and the swinging members 403 are swingingly set in the swinging cavity 402. After swinging, the several swinging members 403 are swung into the first gap 102 or the second gap 202 respectively. The clamping member 5 is threadedly set on the threaded portion 204 and pressed on the tray 3.

[0063] In this embodiment, a threaded portion 204 is provided at one end of the reinforcing rod 2, and the threaded portion 204 is designed for subsequent connection operations with other components. The tray 3 is generally arranged on the threaded portion 204 of the reinforcing rod 2. The main function of the tray 3 is to provide additional support for the anchor rod 1. The locking member 4 is slidably arranged on the tray 3, and it has a locking portion 401, and the locking portion 401 is in contact with the cavity wall of the inner cavity 201. The swing cavity 402 of the locking portion 401 is a key part to achieve special functions. During the installation process, a plurality of swing members 403 are respectively inserted into the first gap 102 and the second gap 202, and after being inserted, the relative displacement between the reinforcing rod 2 and the anchor rod 1 can be effectively limited. Thereby, the reinforcing rod 2 is limited from rotating and thus detaching from the anchor rod 1. The main function of the tray 3 is to disperse the tension borne by the anchor rod 1 to the surrounding rock or soil surface. When the anchor rod 1 is subjected to tension, the tray 3 increases the force-bearing area by contacting with the surface of the surrounding rock, thereby avoiding stress concentration and causing local damage to the surrounding rock. The clamping member 5 is set on the threaded portion 204 through a thread and pressed on the tray 3. The clamping member 5 can adopt a nut structure, and its tightening direction can match the installation direction of the tray 3, so that pressure can be applied to the tray 3 by rotating the clamping member 5 during installation. This pressure can further enhance the tightness of the connection between the tray 3 and other components, ensuring that the entire anchor rod 1 structure can still work stably under complex geological conditions such as vibration, rock deformation, etc., thereby improving the overall reliability and service life of the anchor rod 1. In the actual construction process, the operator can use a special tool to tighten the clamping member 5, which is simple to operate and easy to control the pressure, ensuring that the entire anchor rod 1 system achieves the best anchoring effect.

[0064] Furthermore, the other end of the reinforcing rod 2 has a conical deformation portion 205, which is arranged in a plurality of circles, and a deformation gap 206 is formed between two adjacent conical deformation portions 205. The end of the conical deformation portion 205 has a clamping portion 207, which is used to clamp with the end of the anchor rod 1.

[0065] In this embodiment, a special conical deformation portion 205 is designed at the other end of the reinforcing rod 2. These conical deformation portions 205 are arranged in a circle, and the number can be determined according to the size of the reinforcing rod 2 and the actual use requirements. A deformation gap 206 is formed between every two adjacent conical deformation portions 205. The existence of this deformation gap 206 enables the conical deformation portion 205 to generate a certain deformation space when subjected to external force. During the installation of the anchor rod 1, the conical deformation portion 205 can utilize these deformation gaps 206 to be appropriately deformed, and after deformation, it passes through the anchor rod 1, so that the clamping portion 207 is clamped with the end of the anchor rod 1 to avoid excessive longitudinal tension.

[0066] The end of the conical deformation part 205 is provided with a clamping part 207, which is mainly used for clamping with the end of the anchor rod 1. During installation, when the reinforcing rod 2 is gradually spirally inserted into the anchor hole 101, until this end of the reinforcing rod 2 reaches the end position of the anchor rod 1 and extends out, the clamping part 207 of the conical deformation part 205 forms a tight clamping structure with the end of the anchor rod 1. This clamping method can enhance the connection stability between the reinforcing rod 2 and the anchor rod 1. When the pipe seam anchor rod is subjected to rock and soil pressure from the top and side walls of the tunnel, this clamping structure can prevent axial relative displacement between the reinforcing rod 2 and the anchor rod 1, effectively ensuring the integrity of the entire anchor rod 1 structure. At the same time, the conical design of the conical deformation part 205 enables the force to be more evenly distributed at the clamping part 207 during the force-bearing process, further improving the reliability of the clamping, ensuring that the anchor rod 1 can stably play an anchoring role under complex geological conditions, and provide reliable support for the tunnel structure.

[0067] An anchor rod pulling test device includes a tubular seam anchor rod, a clamping piece 5 having a connecting hole 501, and a first fixing piece 6. The first fixing piece 6 has a connecting cavity 601. The connecting cavity 601 is used to accommodate the clamping piece 5. The connecting cavity 601 has a through hole 602. The plug-in piece 7 passes through the through hole 602 and extends into the connecting hole 501.

[0068] In this embodiment, the anchor rod pull-out test device is mainly composed of a pipe-seam anchor rod with a specific structure and other components that cooperate with it, and is used to accurately test the pulling performance of the pipe-seam anchor rod under different working conditions. The pipe-seam anchor rod contains many specific structures. It is also equipped with components such as a tray 3, a locking member 4, and a clamping member 5. In the pull-out test device of this embodiment, the clamping member 5 is focused on, which has a connecting hole 501, and the connecting hole 501 will cooperate with other components in the future to realize the overall connection function of the device.

[0069] The first fixing member 6 has a connecting cavity 601, and the size of this connecting cavity 601 is based on being able to just accommodate the pressing member 5. The connecting cavity 601 also has a through hole 602, and the position and size of the through hole 602 need to be precisely designed. The diameter of the through hole 602 should be able to allow the plug-in 7 to pass smoothly, and the plug-in 7 is a key element to achieve tight connection of various components. It can pass through the through hole 602 of the first fixing member 6 and smoothly extend into the connecting hole 501 of the pressing member 5. During the installation process, the pressing member 5 is first placed in the connecting cavity 601 of the first fixing member 6, and then the plug-in 7 is inserted from one end of the through hole 602 so that it can accurately extend into the connecting hole 501. When conducting a pull-out test of a pipe seam anchor rod in a geotechnical engineering application scenario, the pipe seam anchor rod is fixed in a simulated geotechnical sample according to a standard installation method. Then the pressing member 5 is installed at the corresponding position of the pipe seam anchor rod and placed in the connecting cavity 601 of the first fixing member 6. Then the connector 7 is inserted to complete the connection and assembly of the entire device. During the pull-out test, when a tensile force is applied to the anchor rod 1, the pull-out force that the anchor rod 1 can withstand can be accurately measured through this stable connection structure, while ensuring that there will be no loosening or connection failure between the components, thereby providing reliable data support for evaluating the performance of the pipe seam anchor rod in actual engineering.

[0070] Furthermore, it also includes a support member 8, a first fixing member 6 is slidably set on the support member 8, a second fixing member 9 is swingably set relative to the support member 8, there are two second fixing members 9 and they are symmetrically set, and a fixing cavity 901 is formed between the two second fixing members 9 after they swing, and the fixing cavity 901 is used to accommodate the anchor rod 1.

[0071] In this embodiment, the anchor rod pull-out test device is designed to meet the requirements of accurate and reliable pull-out performance testing of pipe-seam anchor rods. The device is composed of multiple key components working together, including the pipe-seam anchor rod related components mentioned above and the newly introduced support member 8, the second fixing member 9, etc., and each component cooperates with each other to simulate the actual working conditions and accurately measure the pull-out performance of the anchor rod 1. The support member 8 serves as the basic supporting structure of the entire device, and it has sufficient strength and stability. The first fixing member 6 can slide on the support member 8. This sliding setting method allows the position of the first fixing member 6 to be flexibly adjusted as needed when performing a pull-out test. For example, when testing anchor rods 1 of different lengths, the device can be better adapted to the size of the anchor rod 1 by sliding the first fixing member 6, ensuring that the connecting parts related to the anchor rod 1 are in the appropriate position. In actual operation, the sliding function of the first fixing member 6 can be achieved by cooperating with the guide rail set on the support member 8 and the slide groove 806 at the bottom of the first fixing member 6.

[0072] There are two second fixing members 9 and they are symmetrically arranged relative to the support member 8. This symmetrical arrangement and swinging characteristics enable the two second fixing members 9 to form a fixing cavity 901 after swinging, which is used to accommodate the anchor rod 1 to be tested. When preparing for the pull-out test of the anchor rod 1, the anchor rod 1 is placed between the two second fixing members 9, and then the second fixing members 9 are swung together to form a stable fixing cavity 901 to tightly wrap the anchor rod 1, ensuring that the anchor rod 1 will not be lateral displacement during the test, thereby ensuring the accuracy of the test results. The fixing cavity 901 formed when the two second fixing members 9 are swung together has a size that matches the outer diameter of the anchor rod 1.

[0073] When actually conducting the pull-out test of the anchor rod 1, first assemble the tube-seam anchor rod itself. Then, fix the tube-seam anchor rod in a fixed space, and slide the first fixing member 6 to a suitable position on the support member 8 so that the components connected to the anchor rod 1 can be accurately docked. At this point, all components of the entire device are ready. When a pulling force is applied to the anchor rod 1, the size of the pulling force that the anchor rod 1 can withstand can be accurately measured through the firm connection between the components and the effective fixation and restraint of the anchor rod 1. At the same time, the deformation of the anchor rod 1 during the pulling process and other parameters can be observed, thereby providing comprehensive and reliable data support for evaluating the performance of the tube-seam anchor rod in actual engineering.

[0074] Furthermore, it also includes a mounting member 10, which is swingably set on the support member 8. There are two mounting members 10, and the mounting member 10 has a mounting groove 1001. The mounting groove 1001 is used to install the second fixing member 9. After the two mounting members 10 are swung, a fixing gap 1002 is formed. The mounting member 10 has a fixing groove 1003. The third fixing member 11 is set in the fixing groove 1003 and extends into the fixing gap 1002, and is inserted into the first gap 102 and the second gap 202.

[0075] In this embodiment, there are two mounting members 10, and they are swingably arranged on the support member 8 through a specific connection structure such as a hinge. This swing arrangement enables the mounting member 10 to flexibly adjust its position so as to better adapt to different test scenarios and the requirements of the size of the anchor rod 1. Each mounting member 10 has a mounting groove 1001, which is mainly used to install the second fixing member 9. When the two mounting members 10 swing to a specific position around the support member 8, a fixed gap 1002 is formed between them. The third fixing member 11 is arranged in the fixing groove 1003 of the mounting member 10, and can extend into the fixed gap 1002 formed by the swinging of the two mounting members 10. Further, it can also be inserted into the first gap 102 and the second gap 202 of the pipe seam anchor. At this time, the insertion of the third fixing member 11 makes the first gap 102 and the second gap 202. This design enables the third fixing member 11 to fix the anchor rod 1 from multiple directions, enhance the stability of the anchor rod 1 during the test, and ensure the accuracy of the test results.

[0076] When the third fixing member 11 is inserted into the first slit 102 and the second slit 202, the third fixing member 11 is tightly matched with the first slit 102 and the second slit 202 of the anchor rod 1. The shape and size of the insertion part of the third fixing member 11 are customized according to the specific form of the first slit 102 and the second slit 202 during use, ensuring that it can be smoothly inserted and play an effective fixing role therein, preventing inaccurate measurement of the pull-out resistance of the anchor rod 1 under excessive squeezing of the two second fixing members 9. Further restoring the state of the anchor rod 1 in the rock formation, when the anchor rod 1 is subjected to tension during the pull-out test, the third fixing member 11 can prevent the relative displacement between the reinforcing rod 2 of the anchor rod 1 and the anchor rod 1 body at the slit, maintain the integrity of the anchor rod 1 structure, and thus accurately reflect the pull-out performance of the anchor rod 1 under actual working conditions.

[0077] Furthermore, it also includes a first linear drive member 12, which is arranged on a mounting member 10. The driving end of the first linear drive member 12 is connected to another mounting member after moving, and is used to drive the two mounting members 10 to swing close to each other. The locking bolt 13 passes through the two mounting members 10. The locking bolt 13 is arranged on one mounting member 10 and passes through the other mounting member 10. The locking cap 14 is threadedly arranged on the locking bolt 13 and pressed on the other mounting member 10. The second linear drive member 15 is arranged on the support member 8 to drive the first fixing member 6 to approach or move away from the second fixing member 9.

[0078] In this embodiment, the first linear drive 12 is arranged on one of the mounting members 10, and its driving end is connected to the other mounting member 10 after moving. This connection mode enables the first linear drive 12 to directly act on the two mounting members 10 to control their relative positions. The first linear drive 12 can be a hydraulic push rod or an electric push rod, which is fixed at a suitable position of one mounting member 10, and the driving end is connected to the corresponding position of the other mounting member 10 through a connecting member. The connecting member can be a nut, which is threadedly arranged on the driving end of the first linear drive 12 to realize the function of pressing on the mounting member 10, so that the first drive 12 drives the two mounting members 10 to approach each other. The first linear drive 12 is used to drive the two mounting members 10 to approach each other when the second fixing member 9 fixes the anchor rod 1. In this process, the second fixing member 9 installed on the mounting member 10 will gradually form a tighter wrapping of the anchor rod 1 as the mounting member 10 moves, and the fixed gap 1002 formed between the two mounting members 10 will also be adjusted accordingly, so as to more accurately adapt to the size and position of the anchor rod 1 and ensure the stability of the anchor rod 1 during the test. The first linear drive 12 is driven to simulate the pressure of the anchor rod 1 on the rock. Because the rock pressure is more complicated and the anchoring force is more variable, the pressure released from the rock formation is greater than the pressure from the second fixing member 9. The locking bolt 13 and the locking cap 14 are used to fix the relative position of the first linear drive 12 after the initial extrusion. After fixation, the first linear drive 12 unloads the force, avoiding the influence of the force provided by the first linear drive 12 on the test data. The overall structure is simple. The second linear drive 15 is arranged on the support 8, and its main function is to provide the first fixing member 6 with a force away from the second fixing member 9. The second linear drive 15 is a linear drive device, such as a screw transmission mechanism or a hydraulic cylinder, which is connected to the support 8 and the first fixing member 6 through a specially designed connection structure.

[0079] During the pull-out test, the second linear drive 15 plays a key role. When the test starts, the second linear drive 15 starts and gradually applies force to slowly move the first fixing member 6 away from the second fixing member 9 along the support member 8. Since the first fixing member 6 is connected to the anchor rod 1 through a series of connecting parts, this moving away action will generate a pull-out force on the anchor rod 1. This method of providing a pull-out force through the second linear drive 15 can accurately control the magnitude and speed of the pull-out force, simulating the pull-out conditions that the anchor rod 1 is subjected to in actual engineering. At the same time, by cooperating with the first linear drive 12 and other fixing parts, the stability of the anchor rod 1 can be guaranteed during the pull-out process, making the measured pull-out force data more accurate and reliable.

[0080] Furthermore, the support member 8 includes a first frame 801, the first fixing member 6 is slidably arranged on the first frame 801, the first frame 801 has a slot 802, the second frame 803 has an inserting portion 804, the slot 802 is used to accommodate the inserting portion 804, and the mounting member 10 is swingably arranged on the second frame 803.

[0081] In this embodiment, the support member 8 in the anchor pull-out test device adopts a split design of a first frame 801 and a second frame 803. This design is to meet the demand for anchor 1 pull-out force detection at different installation stages. Whether before the anchor 1 is installed in the actual installation position or after it has been installed in place, the pull-out force can be accurately detected by the device, so as to comprehensively evaluate the performance of the anchor 1 under different working conditions. The first fixing member 6 is slidably arranged on the first frame 801. This design enables effective force transmission and precise control of displacement during the pull-out test. The slot 802 of the first frame 801 is a key structure for connecting it with the second frame 803. The size of the slot 802 is designed to accurately accommodate the plug 804 of the second frame 803. The slot 802 plays the role of a connecting hub in the entire device, which is crucial to realizing the split function of the support member 8. It enables the first frame 801 and the second frame 803 to be flexibly combined or separated in different detection scenarios, thereby meeting the pull-out force detection requirements of the anchor 1 under different installation states. The inserting portion 804 of the second frame 803 is a key part that cooperates with the slot 802 of the first frame 801. The inserting portion 804 and the slot 802 form a stable overall structure through precise size matching and appropriate connection methods such as bolt connection or pin connection. This connection method not only ensures the connection strength, but also facilitates disassembly and assembly when necessary to adapt to different test scenarios.

[0082] The mounting member 10 is swingably arranged on the second frame 803, and the second frame 803 provides a stable swing fulcrum and support for the mounting member 10. This swing arrangement enables the mounting member 10 to be adjusted according to the position and installation state of the anchor rod 1. During the pull-out test, whether the anchor rod 1 is not installed or installed in place, the anchor rod 1 can be effectively restrained laterally, ensuring the stability of the anchor rod 1 during the test, thereby improving the accuracy of the pull-out force test result.

[0083] When the anchor rod 1 is sampled and tested before leaving the factory, the anchor rod 1 can be directly placed in the corresponding position of the device, and the first frame 801, the second frame 803 and other related components cooperate to achieve the fixation and application of pulling force to the anchor rod 1. At this time, the split support member 8 can be easily adjusted and assembled to meet such temporary testing needs.

[0084] When the pull-out force test is performed after the anchor rod 1 has been installed in the actual installation position, the split design of the support member 8 also plays an important role. The first frame 801 and the second frame 803 can be assembled around the anchor rod 1, and the installed anchor rod 1 can be connected and fixed using the first fixing member 6 and the mounting member 10, and then the pull-out force test is performed. This design enables the device to accurately measure the pull-out performance of the anchor rod 1 after installation under the simulation of actual working conditions, providing comprehensive data support for evaluating the quality and reliability of the anchor rod 1 in actual engineering.

[0085] Furthermore, the first frame 801 has a columnar portion 805 , the columnar portion 805 has a sliding groove 806 , and the first fixing member 6 is slidably disposed in the sliding groove 806 .

[0086] In this embodiment, the first frame 801 has a columnar portion 805, which is in the shape of a regular cylinder or a nearly cylindrical structure. The material of the columnar portion 805 is selected from materials with good mechanical properties such as high-strength alloy steel to ensure that it can withstand a large force without deformation during the pull-out test. In some large-scale geotechnical engineering anchor 1 pull-out test scenarios, the columnar portion 805 needs to withstand a large pull-out force reaction force, and the high-strength alloy steel material can effectively meet this demand. The design of the columnar portion 805 can also meet the support function of the second linear drive 15, making it easier to detect the pull-out force of the constructed anchor 1 at the construction site. A slide groove 806 is provided on the columnar portion 805, and the slide groove 806 is the track for the first fixing member 6 to slide. The shape of the slide groove 806 matches the sliding structure at the bottom of the first fixing member 6, usually in a rectangular or dovetail shape, to ensure that the first fixing member 6 can slide stably in the slide groove 806 without lateral deviation.

[0087] The first fixing member 6 cooperates with the slide groove 806 through a sliding structure such as a slider at the bottom thereof, so as to be slidably arranged in the slide groove 806. For example, if the slide groove 806 is rectangular, a matching rectangular slider can be arranged at the bottom of the first fixing member 6, and the slider is tightly fitted with the inner wall of the slide groove 806, so that the sliding of the first fixing member 6 in the slide groove 806 has high straightness and stability. During the installation process, the slider of the first fixing member 6 is aligned with the slide groove 806 and gently pushed in to complete the installation, which is relatively simple to operate.

[0088] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A pipe seam anchor, characterized in that: include: An anchor rod (1), the anchor rod (1) having an anchor hole (101), a side wall of the anchor hole (101) having a first slit (102), and an inner wall of the anchor hole (101) having an inverted cone-shaped protrusion (103); A reinforcing rod (2), the reinforcing rod (2) being arranged in the anchoring hole (101), the reinforcing rod (2) having an inner cavity (201), the side wall of the inner cavity (201) having a second slit (202), the outer wall of the reinforcing rod (2) having a conical protrusion (203), the conical protrusion (203) being in abutment with the inverted conical protrusion (103); The reinforcing rod (2) has a threaded portion (204) at one end, and further comprises: A tray (3), wherein the reinforcing rod (2) passes through the tray (3), and the tray is located on one side of the threaded portion (204); A locking member (4), the locking member (4) being slidably disposed on the tray (3), the locking member (4) having a locking portion (401), the locking portion (401) having a swing cavity (402), and the number of the swing cavities (402); A swinging member (403), the swinging member (403) being swingably disposed in the swinging cavity (402), and a plurality of the swinging members (403) swinging into the first gap (102) or the second gap (202) respectively; A pressing piece (5), wherein the pressing piece (5) is threadedly arranged on the threaded portion (204) and pressed on the tray (3).

2. A pipe seam anchor according to claim 1, characterized in that: There are a plurality of inverted cone-shaped protrusions (103) which are arranged in a spiral arrangement in the anchor hole (101); there are a plurality of cone-shaped protrusions (203) which are arranged in a spiral arrangement on the outer wall of the reinforcing rod (2).

3. A pipe seam anchor according to claim 1, characterized in that: The other end of the reinforcing rod (2) has a conical deformation portion (205), the conical deformation portions (205) are arranged in a plurality of circles, a deformation gap (206) is formed between two adjacent conical deformation portions (205), and the end of the conical deformation portion (205) has a clamping portion (207), the clamping portion (207) being used to clamp with the end of the anchor rod (1).

4. An anchor pull-out test device, characterized in that: The invention comprises the pipe-seam anchor rod according to claim 3, wherein the pressing member (5) has a connecting hole (501), and further comprises: A first fixing member (6), the first fixing member (6) having a connecting cavity (601), the connecting cavity (601) being used to accommodate the pressing member (5), the connecting cavity (601) having a through hole (602); A plug-in connector (7), the plug-in connector (7) passing through the through hole (602) and extending into the connecting hole (501); A support member (8), wherein the first fixing member (6) is slidably arranged on the support member (8); A second fixing member (9), the second fixing member (9) is swingably arranged relative to the supporting member (8), there are two second fixing members (9) and they are symmetrically arranged, and a fixing cavity (901) is formed between the two second fixing members (9) after they swing, and the fixing cavity (901) is used to accommodate the anchor rod (1).

5. The anchor rod pulling test device according to claim 4, characterized in that: Also includes: A mounting member (10), the mounting member (10) being swingably arranged on the supporting member (8), the mounting member (10) being two, the mounting member (10) having a mounting groove (1001), the mounting groove (1001) being used to mount the second fixing member (9), a fixing gap (1002) being formed after the two mounting members (10) are swingably arranged, and the mounting member (10) having a fixing groove (1003); A third fixing member (11), the third fixing member (11) being arranged in the fixing groove (1003), extending into the fixing gap (1002), and inserted into the first gap (102) and the second gap (202).

6. The anchor rod pulling test device according to claim 5, characterized in that: Also includes: a first linear driving member (12), the first linear driving member (12) being arranged on one of the mounting members (10), the driving end of the first linear driving member (12) being connected to the other mounting member (10) after movement, and being used for driving the two mounting members (10) to swing towards each other; a locking bolt (13) and a locking cap (14), wherein the locking bolt (13) is arranged on one of the mounting parts (10) and passes through the other mounting part (10), and the locking cap (14) is threadedly arranged on the locking bolt (13) and pressed onto the other mounting part (10); A second linear driving member (15), wherein the second linear driving member (15) is arranged on the supporting member (8) and drives the first fixing member (6) to move closer to or away from the second fixing member (9).

7. The anchor rod pulling test device according to claim 5, characterized in that: The support member (8) comprises: A first frame (801), the first fixing member (6) being slidably disposed on the first frame (801), and the first frame (801) having a slot (802); The second frame (803) has an inserting portion (804), the slot (802) is used to accommodate the insertion of the inserting portion (804), and the mounting member (10) is swingably arranged on the second frame (803).

8. The anchor rod pulling test device according to claim 7, characterized in that: The first frame (801) has a columnar portion (805), the columnar portion (805) has a slide groove (806), and the first fixing member (6) is slidably disposed in the slide groove (806).

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