Anchor cable and anchor rod pulling test device

Abstract

The present invention relates to the field of pull-out testing technology, and in particular to an anchor cable and anchor rod pull-out testing device. Its technical solution includes: a loading rate adjustment member, including an outer cylinder, an arc-shaped clamp, a first tooth plate, a first gear, a first flow valve, and a hydraulic clamp. The inner portion of the outer cylinder is slidably connected to a plurality of arc-shaped clamps. The outer arc surface of the arc-shaped clamp is provided with a hydraulic clamp through a round rod. The bottom of the hydraulic clamp is provided with a first tooth plate. The inner wall of the outer cylinder is fixedly installed with a first flow valve. The end of the first flow valve is fixedly installed with a first gear meshing with the first tooth plate. The present invention slows down the loading rate of the hydraulic jack for anchor rod bodies with smaller diameters and relatively lower strength, preventing the anchor rod body from being damaged and unable to accurately obtain its ultimate pull-out force. For anchor rod bodies with larger diameters and higher strength, the present invention speeds up the loading rate of the hydraulic jack and improves detection efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of pull-out testing, and in particular to an anchor cable and anchor rod pull-out testing device. Background Art

[0002] The anchor cable protection sleeve is a device used to protect the anchor cable. Through the cooperation of the sleeve and the steel wire protection rope, when the anchor cable is subjected to lateral impact force, it can provide a lateral buffer to prevent the anchor cable from tilting; when the anchor cable breaks, it can play a buffering role to effectively reduce the impact caused by sudden breakage, thereby avoiding accidents and injuries.

[0003] Install auxiliary components such as retaining rings and safety rings according to the specific test equipment and methods. If using a pull-out testing machine with a safety ring, insert the safety ring into the anchor rod or cable and install and adjust it as required. When conducting a destructive test, continue to apply pressure until the anchor rod or cable is pulled out or shows obvious signs of failure. Record the maximum tensile force at this point.

[0004] The patent document with publication number CN115597974A proposes an anchor puller, which includes: a reaction frame, a jack, a conversion part, and an anchor ring. The reaction frame is supported on the ground, the jack is arranged on the top of the reaction frame and cooperates with the driving part, the conversion part is connected to the jack through a transmission part, and the anchor ring is fixedly connected to the conversion part. The anchor ring is suitable for being sleeved on the outer peripheral surface of the anchor rod. The anchor ring includes a body and a clip. A through hole is formed on the body. At least a part of the clip fits in the through hole. The wall thickness of one end of the through hole is L1, and the wall thickness of the other end is L2, satisfying: 1 / 2≤L1 / L2≤4 / 5. As a result, the anchor puller can apply a pulling force to the anchor rod to facilitate the detection of the pulling force of the anchor rod to be tested. The anchor ring can provide a large force to ensure that the anchor rod is pulled out, so that the anchor puller has good structural strength and reliability. At the same time, by setting transmission parts and conversion parts, it can be adjusted according to the anchor rods of different lengths exposed on the ground, so as to improve the application range of the anchor rod puller.

[0005] The force for pulling out the anchor rod is applied by a jack, and the force loading rate of the jack is constant. For anchor rods with smaller diameters and relatively lower strength, the loading rate is too fast, which will cause the anchor rod to be damaged and its ultimate pull-out force cannot be accurately obtained; for anchor rods with larger diameters and higher strength, the loading rate is slow and the detection efficiency is low. Summary of the Invention

[0006] The purpose of the present invention is to address the problem in the background art of maintaining a constant loading rate for anchor rods of different diameters, and to propose an anchor cable and anchor rod pulling test device.

[0007] The technical solution of the present invention is an anchor cable and anchor rod pulling test device, comprising two symmetrically arranged bases, a hydraulic jack fixedly mounted on the top of the base, and a top platform fixedly mounted on the top of the hydraulic jack, characterized in that:

[0008] A loading rate adjustment component includes an outer cylinder, an arc-shaped clamping plate, a first toothed plate, a first gear, a first flow valve, and a hydraulic clamping member. The inner portion of the outer cylinder is slidably connected to a plurality of arc-shaped clamping plates. The outer arc surfaces of the arc-shaped clamping plates are provided with hydraulic clamping members via round rods. The bottom of the hydraulic clamping member is provided with a first toothed plate. The inner wall of the outer cylinder is fixedly mounted with a first flow valve. The end portion of the first flow valve is fixedly mounted with a first gear meshing with the first toothed plate.

[0009] The bottom of the outer cylinder is fixedly connected to the top platform, and the plurality of arc-shaped clamping plates are distributed in a circular manner at equal angles inside the outer cylinder. The anchor rod body is clamped at the center of the plurality of arc-shaped clamping plates, and the first flow valve is connected to the hydraulic jack through a hydraulic pipe;

[0010] The bottom of the top platform is provided with a rate slowing component for gradually slowing down the loading rate of the hydraulic jack.

[0011] Optionally, an inner cylinder is fixedly mounted on the inner wall of the outer cylinder, and the sides of the top platform, outer cylinder and inner cylinder are all provided with notches, and the anchor rod body enters the center of the multiple arc-shaped clamping plates through the notches.

[0012] Optionally, the middle part of the arc-shaped clamp is slidably connected to the contact block, and a return spring is elastically connected between the end of the contact block and the arc-shaped clamp. A push-type stop valve is arranged inside the hydraulic clamp, and the push-type stop valve and the contact block are connected by a linkage rod. The top of the hydraulic clamp is fixedly installed on the first hydraulic push rod inside the top of the outer cylinder, and the push-type stop valve is connected to the first hydraulic push rod through a hydraulic pipe.

[0013] Optionally, the hydraulic clamp includes an inner pressure plate and an outer extrusion plate, the inner arc surface of the inner pressure plate is fixedly connected to an arc-shaped clamping plate by a round rod, the arc-shaped clamping plate and the inner pressure plate are respectively located on the inner and outer sides of the inner cylinder, and the inner pressure plate is provided with an inclined surface on the side close to the outer extrusion plate, the inner inclined surface of the outer extrusion plate contacts the outer inclined surface of the inner pressure plate, the top of the outer extrusion plate is fixedly connected to the first hydraulic push rod, and the bottom of the outer extrusion plate is fixedly installed with a first tooth plate.

[0014] Optionally, the rate deceleration assembly includes a support block, a rotary column, a spiral track, a T-shaped block, a conversion piece and a second flow valve. The support block is fixedly installed on the bottom of the top platform, and the side of the support block is rotated to connect to the rotary column. A spiral track is provided on the rotary column, and the inner sliding connection of the spiral track is connected to the T-shaped block. A conversion piece is provided on the side of the T-shaped block, and the side of the conversion piece is connected to the second flow valve. The second flow valve is fixedly installed on the bottom of the top platform, and the second flow valve is connected to the hydraulic jack through a hydraulic pipe.

[0015] Optionally, two rotating columns are provided and are symmetrical about the center axis of the support block. The spiral tracks on the two rotating columns are in opposite directions. The pitch of the spiral track thereon gradually decreases from one end to the other end of the rotating column. The end rotating shaft of the T-shaped block is connected to a ball, and the ball rolls along the spiral track.

[0016] Optionally, a second gear is fixedly installed on the ends of the two rotating columns, the two second gears are engaged with each other, the rotation directions of the two rotating columns are opposite, the side of the second gear is engaged with a second tooth plate, and the bottom of the second tooth plate is fixedly connected to the fixed part of the hydraulic jack.

[0017] Optionally, the conversion member includes a third tooth plate and a third gear, the third tooth plate slides in the middle of the support block, the end of the third tooth plate is fixedly connected to the T-shaped block, the bottom of the third tooth plate is meshed and connected to the third gear, and the center of the third gear is fixedly connected to the second flow valve.

[0018] Optionally, a contact surface adjustment piece is provided at the outer arc surface of the arc-shaped clamping plate, and the contact surface adjustment piece includes an arc block, an arc plate and an electric push rod. A plurality of arc blocks are fixedly installed at the inner arc surface of the arc plate. A groove is provided in the middle of the arc clamping plate, and the arc block is inserted into the groove of the arc clamping plate. An electric push rod is fixedly installed at the outer arc surface of the arc plate, and the end of the electric push rod is fixedly installed on the inner arc surface of the inner cylinder. Rubber pads are fixedly installed on the upper and lower sides of the arc block.

[0019] Optionally, a plurality of the arc blocks are distributed in a straight line and equidistantly along a vertical line, a round rod between the arc-shaped clamping plate and the inner pressure plate passes through the arc plate, and the arc plate and the arc blocks are staggered.

[0020] Compared with the prior art, this application has the following beneficial technical effects:

[0021] 1. When the arc-shaped clamping plate clamps the anchor rod body, the displacement of the outer extrusion plate drives the first tooth plate to move, so that the first flow valve rotates to adjust the internal opening size of the first flow valve. For anchor rod bodies with smaller diameters and relatively lower strength, the loading rate of the hydraulic jack is slowed down to prevent the anchor rod body from being damaged and its ultimate pull-out force from being accurately obtained; for anchor rod bodies with larger diameters and higher strength, the loading rate of the hydraulic jack is accelerated to improve detection efficiency.

[0022] 2. In the present invention, as the hydraulic jack is extended, the top platform gradually rises, so that the rotary column rotates. Since the pitch of the spiral track gradually decreases, the moving speed of the third tooth plate is reduced, thereby gradually reducing the opening size in the second flow valve, and gradually reducing the flow rate of the hydraulic oil, that is, gradually reducing the jacking speed of the hydraulic jack. When pulling the anchor body with a larger diameter and higher strength, the initial loading rate is fast, and then the loading rate is gradually reduced, and the pulling is slow to obtain an accurate ultimate pulling force, and the initial loading rate is fast to speed up the detection efficiency.

[0023] 3. When clamping an anchor rod body with a smaller diameter and lower strength, the present invention clamps the anchor rod body through the arc block and the arc-shaped clamping plate, thereby increasing the contact surface and avoiding clamping off the anchor rod body; when clamping an anchor rod body with a larger diameter and higher strength, the arc block and the arc-shaped clamping plate are separated, so that the inner arc surface of the arc-shaped clamping plate forms sharp corners, and the anchor rod body is clamped by utilizing the sharp corners, so that the sharp corners of the arc-shaped clamping plate are embedded in the anchor rod body to increase the friction force. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Provide a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 A schematic structural diagram of the outer cylinder of the present invention is given;

[0026] Figure 3 A schematic diagram of the inner cylinder structure of the present invention is given;

[0027] Figure 4 A schematic structural diagram of the inner pressure plate of the present invention is given;

[0028] Figure 5 A schematic diagram of a front and cross-sectional view of the outer cylinder structure of the present invention is given;

[0029] Figure 6 A schematic front and cross-sectional view of the arc-shaped splint structure of the present invention is provided;

[0030] Figure 7 A schematic structural diagram of a second flow valve of the present invention is given;

[0031] Figure 8 A schematic top view of the spiral track structure of the present invention is given;

[0032] Figure 9 A schematic diagram of the arc block structure of the present invention is given.

[0033] : Illustrations: 1. Base; 2. Hydraulic jack; 3. Top platform; 4. Loading rate adjustment member; 41. Outer cylinder; 42. Inner cylinder; 43. Arc-shaped splint; 44. Inner pressure plate; 45. First hydraulic push rod; 46. Outer extrusion plate; 47. Contact block; 48. Return spring; 49. Push-type stop valve; 410. First tooth plate; 411. First gear; 412. First flow valve; 5. Anchor rod body; 6. Rate reduction assembly; 61. Second tooth plate; 62. Support block; 63. Rotary column; 64. Second gear; 65. Spiral track; 66. T-shaped block; 67. Ball; 68. Third tooth plate; 69. Third gear; 610. Second flow valve; 7. Contact surface adjustment member; 71. Arc block; 72. Arc plate; 73. Electric push rod; 74. Rubber pad. DETAILED DESCRIPTION

[0034] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0035] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention.

[0036] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0039] Example 1: This example proposes an anchor cable and anchor rod pulling test device, such as Figure 1 As shown, it includes two symmetrically arranged base platforms 1, with hydraulic jacks 2 fixedly mounted on the top of the base platforms 1, and a top platform 3 fixedly mounted on the top of the hydraulic jacks 2. A loading rate adjustment member 4 is provided at the top center of the top platform 3, and an anchor body 5 is clamped at the center of the loading rate adjustment member 4. The hydraulic jacks 2 extend to push the top platform 3 upward, thereby causing the loading rate adjustment member 4 to pull the anchor body 5 upward.

[0040] like Figures 2 to 4 As shown, the loading rate adjustment component 4 includes an outer cylinder 41, an arc-shaped clamping plate 43, a first gear plate 410, a first gear 411, a first flow valve 412, and a hydraulic clamp. The bottom of the outer cylinder 41 is fixedly connected to the top platform 1. Multiple arc-shaped clamping plates 43 are slidably connected to the interior of the outer cylinder 41. The inner cylinder 42 is fixedly mounted on the inner wall of the outer cylinder 41. The sides of the top platform 3, the outer cylinder 41, and the inner cylinder 42 are all provided with notches. The anchor rod body 5 enters the center of the multiple arc-shaped clamping plates 43 through the notches. The outer curved surfaces of the arc-shaped clamping plates 43 are provided with hydraulic clamping plates via round rods. Multiple arc-shaped clamping plates 43 are distributed in an annular pattern at equal angles within the outer cylinder 41, and the center of the multiple arc-shaped clamping plates 43 clamps the anchor rod body 5.

[0041] There are gaps between the multiple arc-shaped splints 43. The anchor rod body 5 enters the center of the outer tube 41 from the gap and the gap between two adjacent arc-shaped splints 43, and is squeezed by the hydraulic clamp to move it toward the center of the outer tube 41 and clamp the anchor rod body 5.

[0042] like Figure 5 and Figure 6 As shown, the hydraulic clamp includes an inner pressure plate 44 and an outer extrusion plate 46. The inner arc surface of the inner pressure plate 44 is fixedly connected to the arc-shaped clamping plate 43 by a round rod. The arc-shaped clamping plate 43 and the inner pressure plate 44 are respectively located on the inner and outer sides of the inner cylinder 42. The inner pressure plate 44 is provided with an inclined surface on the side close to the outer extrusion plate 46. The inner inclined surface of the outer extrusion plate 46 is in contact with the outer inclined surface of the inner pressure plate 44. The top of the outer extrusion plate 46 is fixedly connected to the first hydraulic push rod 45.

[0043] The first hydraulic push rod 45 is extended to move the outer extrusion plate 46 downward, and the inner inclined surface of the outer extrusion plate 46 is used to squeeze the inner pressure plate 44, so that the multiple arc-shaped clamping plates 43 gather toward the center of the outer cylinder 41, thereby clamping the first hydraulic push rod 45.

[0044] The middle part of the arc-shaped clamping plate 43 is slidably connected to the contact block 47, and a return spring 48 is elastically connected between the end of the contact block 47 and the arc-shaped clamping plate 43. A push-type stop valve 49 is set inside the outer extrusion plate 46. The push-type stop valve 49 is connected to the contact block 47 through a linkage rod, and the push-type stop valve 49 is connected to the first hydraulic push rod 45 through a hydraulic pipe.

[0045] After the inner arc surface of the arc-shaped clamping plate 43 completely contacts the anchor rod body 5, the contact block 47 in the middle of the arc-shaped clamping plate 43 is completely pressed into the interior of the arc-shaped clamping plate 43. The contact block 47 uses the round rod to squeeze the press-type stop valve 49. The press-type stop valve 49 cuts off the flow of hydraulic oil in the hydraulic pipe, thereby stopping the further extension of the first hydraulic push rod 45, and preventing the arc-shaped clamping plate 43 from excessively clamping the anchor rod body 5.

[0046] The bottom of the outer extrusion plate 46 is fixedly connected to the first tooth plate 410, and the inner wall of the outer cylinder 41 is fixedly installed with a first flow valve 412. The first flow valve 412 is connected to the hydraulic jack 2 through a hydraulic pipe. The end of the first flow valve 412 is fixedly installed with a first gear 411 meshing with the first tooth plate 410. The outer extrusion plate 46 moves downward to drive the first tooth plate 410 to move. The first tooth plate 410 causes the first gear 411 to rotate and adjust the size of the internal opening of the first flow valve 412, thereby controlling the flow rate of the hydraulic oil, that is, adjusting the extension speed of the hydraulic jack 2.

[0047] In this embodiment, when the arc-shaped clamping plate 43 clamps the anchor rod body 5, the displacement of the outer extrusion plate 46 drives the first tooth plate 410 to move, so that the first flow valve 412 rotates to adjust the internal opening size of the first flow valve 412. For anchor rod bodies 5 with smaller diameters and relatively lower strength, the loading rate of the hydraulic jack 2 is slowed down to prevent the anchor rod body 5 from being damaged and its ultimate pull-out force from being accurately obtained; for anchor rod bodies 5 with larger diameters and higher strength, the loading rate of the hydraulic jack 2 is accelerated to improve the detection efficiency.

[0048] Example 2: Based on Example 1, this example proposes an anchor cable and anchor rod pulling test device, such as Figure 1 and Figure 7As shown, a rate-reducing assembly 6 for gradually slowing down the loading rate of the hydraulic jack 2 is provided at the bottom of the top platform 3. The rate-reducing assembly 6 includes a support block 62, a swivel column 63, a spiral track 65, a T-shaped block 66, a conversion piece and a second flow valve 610. The support block 62 is fixedly installed at the bottom of the top platform 3. The side of the support block 62 is rotated to connect the swivel column 63. A spiral track 65 is provided on the swivel column 63. Two swivel columns 63 are provided and are symmetrical about the center axis of the support block 62. The spiral tracks 65 on the two swivel columns 63 are in opposite directions.

[0049] like Figure 7 and Figure 8 As shown, the ends of the two rotating pillars 63 are fixedly mounted with second gears 64, the two second gears 64 are meshed with each other, the rotation directions of the two rotating pillars 63 are opposite, the side of the second gear 64 is meshed with the second tooth plate 61, and the bottom of the second tooth plate 61 is fixedly connected to the fixed part of the hydraulic jack 2.

[0050] By rotating the rotary column 63 and using the second gear 64 to make the other rotary column 63 rotate synchronously, the two rotary columns 63 rotate in opposite directions, and the end shaft of the T-shaped block 66 is connected to the ball 67, and the ball 67 rolls along the spiral track 65. The rotation of the spiral track 65 makes the ball 67 roll, so that the T-shaped block 66 moves.

[0051] A conversion member is provided on the side of the T-shaped block 66, and the conversion member includes a third tooth plate 68 and a third gear 69. The third tooth plate 68 slides in the middle of the support block 62, and the end of the third tooth plate 68 is fixedly connected to the T-shaped block 66. The bottom of the third tooth plate 68 is meshed with the third gear 69, and the center of the third gear 69 is fixedly connected to the second flow valve 610. The second flow valve 610 is fixedly installed at the bottom of the top platform 3, and the second flow valve 610 is connected to the hydraulic jack 2 through a hydraulic pipe.

[0052] As the top platform 3 rises, the top platform 3 drives the second gear 64 to move upward, and the second gear 64 is affected by the second tooth plate 61 to rotate, thereby rotating the rotary column 63. The spiral track 65 on the rotary column 63 uses the ball 67 to move the T-shaped block 66, and the T-shaped block 66 drives the third tooth plate 68 to move. The third tooth plate 68 and the support block 62 cooperate to prevent the third tooth plate 68 and the T-shaped block 66 from rotating. The movement of the third tooth plate 68 causes the third gear 69 to rotate, thereby reducing the circulation speed of the hydraulic oil at the second flow valve 610.

[0053] like Figure 8As shown, the pitch of the spiral track 65 on the spindle 63 gradually decreases from one end to the other. As the T-shaped block 66 rotates, the pitch of the spiral track 65 gradually decreases, thereby reducing the horizontal displacement speed of the ball 67, thereby gradually reducing the movement speed of the T-shaped block 66. The maximum flow rate of the first flow valve 412 is the same as the maximum flow rate of the second flow valve 610.

[0054] In this embodiment, as the hydraulic jack 2 is extended, the top platform 3 gradually rises, so that the rotary column 63 rotates. Since the pitch of the spiral track 65 gradually decreases, the moving speed of the third tooth plate 68 is reduced, thereby gradually reducing the opening size in the second flow valve 610, and gradually reducing the flow rate of the hydraulic oil, that is, gradually reducing the lifting speed of the hydraulic jack 2. When pulling the anchor rod body 5 with a larger diameter and higher strength, the initial loading rate is fast, and then the loading rate is gradually reduced, and the pulling is slow to obtain an accurate ultimate pulling force, and the initial loading rate is fast to speed up the detection efficiency.

[0055] Example 3: Based on the above-mentioned Example 1 or 2, this example proposes an anchor cable and anchor rod pulling test device, such as Figure 6 and Figure 9 As shown, a contact surface adjustment member 7 is provided on the outer arc surface of the arc splint 43, and the contact surface adjustment member 7 includes an arc block 71, an arc plate 72 and an electric push rod 73. A plurality of arc blocks 71 are fixedly installed on the inner arc surface of the arc plate 72. A groove is provided in the middle of the arc splint 43, and the arc block 71 is inserted into the groove of the arc splint 43. The electric push rod 73 is fixedly installed on the outer arc surface of the arc plate 72, and the end of the electric push rod 73 is fixedly installed on the inner arc surface of the inner cylinder 42. Rubber pads 74 are fixedly installed on the upper and lower sides of the arc block 71.

[0056] The arc block 71 is clamped in the arc splint 43 through the rubber pad 74. The anchor rod body 5 is clamped by the arc block 71 and the arc splint 43. When the anchor rod body 5 with a larger diameter and higher strength is clamped, the rubber pad 74 contracts to separate the arc block 71 and the arc splint 43, so that the inner arc surface of the arc splint 43 forms an edge, and the anchor rod body 5 is clamped by the edge.

[0057] The plurality of arc blocks 71 are distributed equidistantly along a vertical line. The round rod between the arc-shaped clamping plate 43 and the inner pressure plate 44 passes through the arc plate 72. The arc plate 72 and the arc blocks 71 are staggered to avoid being stuck.

[0058] In this embodiment, when clamping the anchor rod body 5 with a smaller diameter and lower strength, the anchor rod body 5 is clamped by the arc block 71 and the arc-shaped clamping plate 43 to increase the contact surface and avoid clamping off the anchor rod body 5; and when clamping the anchor rod body 5 with a larger diameter and higher strength, the arc block 71 and the arc-shaped clamping plate 43 are separated, so that the inner arc surface of the arc-shaped clamping plate 43 forms sharp corners, and the anchor rod body 5 is clamped by using the sharp corners, so that the sharp corners of the arc-shaped clamping plate 43 are embedded in the anchor rod body 5 to increase the friction force.

[0059] The above specific embodiments are merely several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art may make various alternative improvements and combinations to the above specific embodiments.

Claims

1. An anchor cable and anchor rod pull-out test device, comprising: Two base platforms (1) are symmetrically arranged, a hydraulic jack (2) is fixedly installed on the top of the base platform (1), and a top platform (3) is fixedly installed on the top of the hydraulic jack (2), characterized in that: A loading rate regulating member (4) comprises an outer cylinder (41), an arc-shaped clamp (43), a first tooth plate (410), a first gear (411), a first flow valve (412) and a hydraulic clamp member, wherein the inner portion of the outer cylinder (41) is slidably connected to a plurality of arc-shaped clamps (43), the outer arc surface of the arc-shaped clamp (43) is provided with a hydraulic clamp member via a round rod, the inner wall of the outer cylinder (41) is fixedly mounted with the first flow valve (412), the bottom of the hydraulic clamp member is provided with a first tooth plate (410) for regulating the opening of the first flow valve (412), the arc-shaped clamp (43) is transmission-connected to the first tooth plate (410) via the hydraulic clamp member, and the end portion of the first flow valve (412) is fixedly mounted with a first gear (411) meshingly connected with the first tooth plate (410); The bottom of the outer cylinder (41) is fixedly connected to the top platform (3), and the plurality of arc-shaped clamping plates (43) are distributed in an annular shape at equal angles inside the outer cylinder (41). The anchor rod body (5) is clamped at the center of the plurality of arc-shaped clamping plates (43), and the first flow valve (412) is connected to the hydraulic jack (2) through a hydraulic pipe. The bottom of the top platform (3) is provided with a rate slowing component (6) for gradually slowing down the loading rate of the hydraulic jack (2); The rate reduction assembly (6) includes a support block (62), a rotary column (63), a spiral track (65), a T-shaped block (66), a conversion piece and a second flow valve (610). The support block (62) is fixedly installed at the bottom of the top platform (3). The side of the support block (62) is rotated to connect the rotary column (63). The rotary column (63) is provided with a spiral track (65). The inner sliding connection of the spiral track (65) is connected to the T-shaped block (66). The side of the T-shaped block (66) is provided with a conversion piece. The side of the conversion piece is connected to the second flow valve (610). The second flow valve (610) is fixedly installed at the bottom of the top platform (3). The second flow valve (610) is connected to the hydraulic jack (2) through a hydraulic pipe.

2. The anchor cable and anchor rod pull-out test device according to claim 1, characterized in that: An inner cylinder (42) is fixedly mounted on the inner wall of the outer cylinder (41), and the sides of the top platform (3), the outer cylinder (41), and the inner cylinder (42) are all provided with notches, and the anchor rod body (5) enters the center of the plurality of arc-shaped clamping plates (43) through the notches.

3. The anchor cable and anchor rod pulling test device according to claim 2, characterized in that: The middle part of the arc-shaped clamp (43) is slidably connected to the contact block (47), and a return spring (48) is elastically connected between the end of the contact block (47) and the arc-shaped clamp (43). A push-type stop valve (49) is arranged inside the hydraulic clamp, and the push-type stop valve (49) is connected to the contact block (47) through a linkage rod. The top of the hydraulic clamp is fixedly installed on the first hydraulic push rod (45) inside the top of the outer cylinder (41), and the push-type stop valve (49) is connected to the first hydraulic push rod (45) through a hydraulic pipe.

4. The anchor cable and anchor rod pulling test device according to claim 3, characterized in that: The hydraulic clamp comprises an inner pressure plate (44) and an outer extrusion plate (46), the inner arc surface of the inner pressure plate (44) is fixedly connected to the arc clamping plate (43) through a round rod, the arc clamping plate (43) and the inner pressure plate (44) are respectively located on the inner and outer sides of the inner cylinder (42), the inner pressure plate (44) is provided with an inclined surface on the side close to the outer extrusion plate (46), the inner inclined surface of the outer extrusion plate (46) contacts the outer inclined surface of the inner pressure plate (44), the top of the outer extrusion plate (46) is fixedly connected to the first hydraulic push rod (45), and the bottom of the outer extrusion plate (46) is fixedly installed with the first tooth plate (410).

5. The anchor cable and anchor rod pulling test device according to claim 4, characterized in that: Two rotating columns (63) are provided and are symmetrical about the center axis of the support block (62). The spiral tracks (65) on the two rotating columns (63) are in opposite directions. From one end of the rotating column (63) to the other end, the pitch of the spiral track (65) thereon gradually decreases. The end shaft of the T-shaped block (66) is connected to a ball (67), and the ball (67) rolls along the spiral track (65).

6. The anchor cable and anchor rod pulling test device according to claim 5, characterized in that: The ends of the two rotating columns (63) are fixedly mounted with a second gear (64), the two second gears (64) are meshed with each other, the two rotating columns (63) rotate in opposite directions, the side of the second gear (64) is meshed with a second toothed plate (61), and the bottom of the second toothed plate (61) is fixedly connected to the fixed portion of the hydraulic jack (2).

7. The anchor cable and anchor rod pulling test device according to claim 6, characterized in that: The conversion member includes a third tooth plate (68) and a third gear (69), wherein the third tooth plate (68) slides in the middle of the support block (62), the end of the third tooth plate (68) is fixedly connected to the T-shaped block (66), the bottom of the third tooth plate (68) is meshed with the third gear (69), and the center of the third gear (69) is fixedly connected to the second flow valve (610).

8. The anchor cable and anchor rod pulling test device according to claim 1, characterized in that: A contact surface adjusting member (7) is provided on the outer arc surface of the arc-shaped clamping plate (43), and the contact surface adjusting member (7) includes an arc block (71), an arc plate (72) and an electric push rod (73). A plurality of arc blocks (71) are fixedly installed on the inner arc surface of the arc plate (72). A groove is provided in the middle of the arc-shaped clamping plate (43), and the arc block (71) is inserted into the groove of the arc-shaped clamping plate (43). The electric push rod (73) is fixedly installed on the outer arc surface of the arc plate (72), and the end of the electric push rod (73) is fixedly installed on the inner arc surface of the inner cylinder (42). Rubber pads (74) are fixedly installed on the upper and lower sides of the arc block (71).

9. The anchor cable and anchor rod pulling test device according to claim 8, characterized in that: The plurality of arc blocks (71) are distributed in a straight line at equal intervals along a vertical line, the round rod between the arc-shaped clamping plate (43) and the inner pressure plate (44) passes through the arc plate (72), and the arc plate (72) and the arc blocks (71) are staggered.

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