Adaptive Angle Anchor Pullout Test Device

Abstract

The present invention relates to the field of engineering detection technology, and in particular to an anchor rod pull-out test device with adaptive angle. The technical solution is: it includes a base and a steering mechanism, the steering mechanism includes an articulated frame, an articulated frame is provided on the upper side of the base, a rotating ball is connected in a rolling manner in the articulated frame, a bearing seat is fixedly connected to the top of the rotating ball, a through hole is provided on the rotating ball and the bearing seat, and a clamping mechanism is provided on the upper side of the steering mechanism. The present invention adopts a first clamp and a second clamp to clamp the threaded steel bar through the design of the clamping mechanism. Compared with the anchors in the prior art, the first clamp and the second clamp can better fit with the crescent ribs of the threaded steel bar through the rib grooves thereon, so as to prevent the first clamp or the second clamp from sliding and dislocating when applying a pulling force to the threaded steel bar, resulting in inaccurate test results. By designing the adjustment mechanism, the horizontal position and height of the first clamp or the second clamp can be conveniently adjusted.

Description

Technical Field

[0001] The invention relates to the technical field of engineering detection, in particular to an anchor rod pulling test device with adaptive angle. Background Art

[0002] As one of the main support forms for underground projects and rock slopes, anchor rods play an important role in the stability and maintenance of civil engineering projects. Especially in the process of treating fractured rock masses, the reinforcement effect of anchor rods on rock masses is very obvious. Anchor rods need to undergo pull-out tests after installation. The pull-out test can ensure the reliability and safety of anchor rods in actual applications and prevent safety accidents caused by anchor rod failure.

[0003] Anchor rods are usually threaded steel bars. When conducting anchor rod pull-out tests, it is necessary to ensure that the force direction applied to the threaded steel bars is coaxial with the axis of the threaded steel bars to prevent the force angle of the threaded steel bars from changing during the pull-out test, thereby causing the threaded steel bars to break. In the prior art, when conducting anchor rod pull-out tests, the base is usually placed on the ground, and then the anchor is fixed to the threaded steel bars. The anchor rod puller is started to squeeze the anchor, so that the anchor applies tension to the threaded steel bars. When testing in scenes where the ground is uneven, such as in mining areas, or the anchor rod is not perpendicular to the ground, it is necessary to place pads or other objects on the underside of the base to ensure the ground is level. The seat is used to support the anchor rod so that the force direction of the anchor puller and the anchor on the threaded steel tends to be coaxial with the axis of the threaded steel. However, the above steps cannot completely ensure that the tension applied by the anchor puller to the anchor rod can be coaxial with the axis of the threaded steel, resulting in force deviation of the threaded steel and inaccurate test results. When the pull-out test is carried out on multiple anchor rods at the same time, due to the gaps between the multiple threaded steels, the anchor is set on the outside of the multiple threaded steels, and it is impossible to ensure that the anchor and the multiple threaded steels are completely fixed. In addition, when the anchor puller squeezes the anchor, the anchor is very likely to slide between the threaded steel, making it impossible to carry out the test. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the present invention provides an anchor pull-out test device with adaptive angle.

[0005] The technical solution is: an adaptive angle anchor pulling test device, comprising a base and a steering mechanism, the steering mechanism comprising an articulated frame, the articulated frame being provided on the upper side of the base, a rotating ball being rotatably connected in the articulated frame, a bearing seat being fixedly connected to the top of the rotating ball, a through-hole being penetrated through the rotating ball and the bearing seat, a clamping mechanism being provided on the upper side of the steering mechanism, the clamping mechanism comprising a first circular frame, a plurality of evenly distributed rings being movably connected in the first circular frame, a mounting frame being provided in each of the plurality of rings, a pair of first clamping frames and second clamping frames being symmetrically provided in the mounting frame, a first clamp being provided on one side of the first clamping frame for use therewith, a second clamp being provided on one side of the second clamping frame for use therewith, a first rib groove being provided on one side of the first clamp, a second rib groove being provided on one side of the second clamp, and an adjustment mechanism being provided in the first circular frame.

[0006] Preferably, the clamping mechanism also includes an arc-shaped plate, and the arc-shaped plate is symmetrically slidably connected in the first clamping frame and the second clamping frame, and a first elastic member is provided between the arc-shaped plate and the first clamping frame or the second clamping frame respectively. One side of the first clamp and the second clamp is symmetrically provided with a clamping groove for use with the arc-shaped plate, and a vertical axis is fixed to the top of the arc-shaped plate, and several of the vertical axes are respectively penetrated and slidably connected to the first clamping frame or the second clamping frame.

[0007] Preferably, the clamping mechanism also includes an elastic telescopic rod, the tops of the first clamping frame and the second clamping frame are both slidably connected to the elastic telescopic rod, the outer wall of the elastic telescopic rod and a second elastic member are provided between the first clamping frame and the second clamping frame, the outer wall top of the elastic telescopic rod is fixedly connected with a connecting block, the first clamping frame and the second clamping frame top are both symmetrically rotatably connected to the rotating frame, the connecting block is fixedly connected with a pair of symmetrically distributed sliding shafts, the sliding shafts are stuck in the rotating frame and slide in the rotating frame, one end of the rotating frame is hinged with a connecting rod, the connecting rod is rotatably connected to the vertical axis, the outer wall of the telescopic end of the elastic telescopic rod is provided with a vertical groove, the vertical groove is slidably connected with an elastic limit pin, and the inner wall of the elastic telescopic rod is provided with a hemispherical groove for use with the elastic limit pin.

[0008] Preferably, the adjustment mechanism includes a guide frame, the guide frame is provided on the upper side of several of the rings, several evenly distributed brackets are slidably connected to the guide frame, the bottom ends of several of the brackets are fixed to the top ends of several of the rings, several of the brackets are slidably connected to slide rods, several of the slide rods are respectively fixed to the first clamping frame or the second clamping frame, the bottom of the slide rod is fixed with a sliding shaft, the top of the mounting frame is symmetrically provided with a first guide groove and a second guide groove used in conjunction with the slide rod, a pin is inserted in the guide frame, and the top surface of the first circular frame is provided with several evenly distributed limit grooves, and the pin is used in conjunction with several limit grooves.

[0009] Preferably, the adjustment mechanism also includes an elastic wedge block, the elastic wedge block is slidably connected in the guide frame, the outer wall of the pin is provided with a wedge groove for use with the elastic wedge block, and a groove is provided on one side of the elastic wedge block. The outer wall of the mounting frame is fixed with a plurality of evenly distributed teeth, and the plurality of teeth are used in conjunction with the groove.

[0010] Preferably, the adjustment mechanism also includes a threaded sleeve, and the inner walls of several of the rings are movably connected to the threaded sleeve, and the bottom end of the threaded sleeve is provided with an annular groove, and a pair of guide columns are symmetrically slidably connected in the annular groove, and the bottom ends of the pair of guide columns are fixed to the bottom of the first circular frame through an L-shaped plate, and the bottom of the mounting frame is fixed with a hollow screw, and the hollow screw is threadedly connected to the threaded sleeve.

[0011] Preferably, a first inclined plate is further included, the first inclined plate is fixedly connected to the bottom of the first clamping frame, a second circular frame is provided on the lower side of the first circular frame, and a plurality of evenly distributed extrusion rings are movably connected in the second circular frame, and the tops of the plurality of extrusion rings are symmetrically fixed with a pair of telescopic shafts through a mounting plate, the tops of the pair of telescopic shafts are fixed to the bottom end of the sleeve, and the tops of the plurality of extrusion rings are symmetrically fixed with a first extrusion block used in conjunction with the first inclined plate.

[0012] Preferably, a second inclined plate is further included, the bottom of the second clamping frame is fixedly connected to the second inclined plate, and the tops of several extrusion rings are symmetrically fixedly connected to second extrusion blocks used in conjunction with the second inclined plate.

[0013] Preferably, it further includes an elastic connecting rod, and the bottom of the first circular frame is hinged with a number of evenly distributed elastic connecting rods, and the bottom ends of the several elastic connecting rods are hinged with tooth blocks, which are stuck in the second circular frame and slidably connected thereto, and a tooth groove is provided on one side of the extrusion ring for use with the tooth block.

[0014] Preferably, it further comprises claws, a plurality of evenly distributed claws are fixedly connected to the outer wall of the articulated frame, a third elastic member is provided between the articulated frame and the base, and the plurality of claws are all slidably connected to the base.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention adopts a first clamp and a second clamp to clamp the threaded steel bar through the design of the clamping mechanism. Compared with the anchor in the prior art, the first clamp and the second clamp can better fit with the crescent rib of the threaded steel bar through the first rib groove and the second rib groove thereon, preventing the first clamp or the second clamp from sliding when applying a pulling force to the threaded steel bar, resulting in inaccurate test results. Through the design of the adjustment mechanism, the horizontal position and height of the first clamp or the second clamp can be conveniently adjusted, which makes it easier for the first clamp and the second clamp to fit the threaded steel bar.

[0017] 2. The present invention can conveniently change the orientation of the first clamp and the second clamp through the design of the arc plate, so that the orientation of the first rib groove and the second rib groove of the first clamp and the second clamp is consistent with the orientation of the crescent rib of the threaded steel bar. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of the present invention as a whole;

[0019] Figure 2 This is a schematic diagram of the installation of the rotating ball of the present invention;

[0020] Figure 3 This is a schematic diagram of the installation of the collar of the present invention;

[0021] Figure 4 It is a structural schematic diagram of the clamping mechanism of the present invention;

[0022] Figure 5 This is a schematic diagram of the installation of the curved plate of the present invention;

[0023] Figure 6 This is a schematic diagram of the installation of the elastic limit pin of the present invention;

[0024] Figure 7 It is a structural schematic diagram of the adjustment mechanism of the present invention;

[0025] Figure 8 This is a schematic diagram of the installation of the elastic wedge block of the present invention;

[0026] Figure 9 This is a schematic diagram of the installation of the threaded sleeve of the present invention;

[0027] Figure 10 This is a schematic diagram of the installation of the extrusion ring of the present invention;

[0028] Figure 11 This is a schematic diagram of the installation of the tooth block of the present invention;

[0029] Figure 12 It is a schematic diagram of the installation of the claw of the present invention.

[0030] The components in the accompanying drawings are marked as follows: 1-base, 201-hinge frame, 202-rotating ball, 203-bearing seat, 204-first round frame, 205-ring, 206-mounting frame, 2061-first clamping frame, 2062-second clamping frame, 207-first clamp, 208-second clamp, 301-arc plate, 302-vertical axis, 401-elastic telescopic rod, 402-connecting block, 403-rotating frame, 404-connecting rod, 405-elastic limit pin, 501- Guide frame, 502-bracket, 503-sliding rod, 504-pin, 601-elastic wedge block, 602-teeth, 701-threaded sleeve, 7011-guide column, 702-hollow screw, 801-first inclined plate, 802-second round frame, 803-extrusion ring, 804-telescopic shaft, 805-first extrusion block, 901-second inclined plate, 902-second extrusion block, 1001-elastic connecting rod, 1002-tooth block, 1101-claw, 100-anchor puller. DETAILED DESCRIPTION

[0031] First of all, it should be noted that in the various embodiments described, identical components are provided with identical reference numerals or identical component names, wherein the disclosure contained throughout the entire description can be transferred to the same components having the same reference numerals or identical component names. Positional designations selected in the description, such as top, bottom, lateral, etc., also refer to the directly described and illustrated figures and are transferred to the new position in the event of a change in position.

[0032] Adaptive angle anchor pull-out test device, such as Figure 1-Figure 5As shown, it includes a base 1 and a steering mechanism, which includes an articulated frame 201. The upper side of the base 1 is provided with an articulated frame 201, and a rotating ball 202 is connected in a rolling manner in the articulated frame 201. The top of the rotating ball 202 is fixedly connected to a bearing seat 203. Through holes are provided on the rotating ball 202 and the bearing seat 203. A clamping mechanism is provided on the upper side of the steering mechanism, and the clamping mechanism includes a first circular frame 204. Three evenly distributed rings 205 are movably connected in the first circular frame 204. The three rings 205 are each provided with a mounting frame 206, and the mounting frame 206 is symmetrically arranged. There is a pair of first clamping frames 2061 and second clamping frames 2062, and the two first clamping frames 2061 and the two second clamping frames 2062 are arranged alternately. One side of the first clamping frame 2061 is provided with a first clamp 207 for use therewith, and one side of the second clamping frame 2062 is provided with a second clamp 208 for use therewith. One side of the first clamp 207 is provided with a first rib groove, and one side of the second clamp 208 is provided with a second rib groove. An adjustment mechanism is provided in the first circular frame 204, and the adjustment mechanism is used to adjust the horizontal position and height of the first clamp 207 and the second clamp 208.

[0033] like Figure 5 As shown, the clamping mechanism also includes an arc plate 301, and the first clamping frame 2061 and the second clamping frame 2062 are symmetrically slidably connected with the arc plate 301. A first elastic member is arranged between the arc plate 301 and the first clamping frame 2061 or the second clamping frame 2062, and the first elastic member is a reset spring. One side of the first clamp 207 and the second clamp 208 are symmetrically provided with a clamping groove for use with the arc plate 301. The first clamp 207 or the second clamp 208 can be quickly clamped by the arc plate 301. A vertical axis 302 is fixed to the top of the arc plate 301, and the eight vertical axes 302 are respectively penetrated and slidably connected to the first clamping frame 2061 or the second clamping frame 2062.

[0034] like Figure 5-Figure 6As shown, the clamping mechanism also includes an elastic telescopic rod 401, the tops of the first clamping frame 2061 and the second clamping frame 2062 are both slidably connected to the elastic telescopic rod 401, a second elastic member is provided between the outer wall of the elastic telescopic rod 401 and the first clamping frame 2061 and the second clamping frame 2062, the second elastic member is a compression spring, the outer wall top of the elastic telescopic rod 401 is fixedly connected to a connecting block 402, the tops of the first clamping frame 2061 and the second clamping frame 2062 are both symmetrically rotatably connected to a rotating frame 403, and the connecting block 403 is provided between the outer wall of the elastic telescopic rod 401 and the first clamping frame 2061 and the second clamping frame 2062. 02 is fixed with a pair of symmetrically distributed sliding shafts, and the two sliding shafts are respectively inserted into the two rotating frames 403 and slide therein. One end of the rotating frame 403 is hinged with a connecting rod 404, and the connecting rod 404 is rotatably connected to the vertical axis 302. A vertical groove is provided on the outer wall of the telescopic end of the elastic telescopic rod 401, and an elastic limit pin 405 is vertically slidably connected in the vertical groove. A hemispherical groove is provided on the inner wall of the elastic telescopic rod 401 for use with the elastic limit pin 405. The elastic limit pin 405 is used to limit the position of the telescopic end of the elastic telescopic rod 401.

[0035] like Figure 5 and Figure 7-Figure 8 As shown, the adjustment mechanism includes a guide frame 501, and a guide frame 501 is provided on the upper side of the three rings 205. Four evenly distributed brackets 502 are slidably connected in the guide frame 501. The bottom ends of the four brackets 502 are fixedly connected to the top of the corresponding rings 205. Slide rods 503 are horizontally slidably connected in the four brackets 502. The four slide rods 503 are respectively fixed to the first clamping frame 2061 or the second clamping frame 2062. The bottom of the slide rod 503 is fixedly connected to a sliding shaft. The top of the mounting frame 206 is symmetrically provided with a first guide groove and a second guide groove used in conjunction with the slide rod 503. The two first guide grooves and the two second guide grooves are staggered. A pin 504 is inserted in the guide frame 501, and the top surface of the first circular frame 204 is provided with a number of evenly distributed limit grooves, and the pin 504 is used in conjunction with the number of limit grooves.

[0036] like Figure 8 As shown, the adjustment mechanism also includes an elastic wedge block 601, which is horizontally slidably connected to the guide frame 501, a wedge groove is provided in the middle of the outer wall of the pin 504 for use with the elastic wedge block 601, and a groove is provided on one side of the elastic wedge block 601. A plurality of evenly distributed teeth 602 are fixed to the outer wall of the mounting frame 206, and the plurality of teeth 602 are used in conjunction with the groove. When the pin 504 is lifted and slid upward, the groove of the elastic wedge block 601 can contact the plurality of teeth 602.

[0037] like Figure 9As shown, the adjustment mechanism also includes a threaded sleeve 701, and the inner walls of the three rings 205 are movably connected to the threaded sleeve 701. The bottom end of the threaded sleeve 701 is provided with an annular groove, and a pair of guide columns 7011 are symmetrically slidably connected in the annular groove. The bottom ends of the pair of guide columns 7011 are fixedly connected to the bottom of the first circular frame 204 through an L-shaped plate. The guide columns 7011 are used to support the threaded sleeve 701. The bottom of the mounting frame 206 is fixedly connected with a hollow screw 702, and the hollow screw 702 is threadedly connected to the threaded sleeve 701. By rotating the threaded sleeve 701, the hollow screw 702 can drive the mounting frame 206 to lift upward.

[0038] like Figure 9-10 As shown, it also includes a first inclined plate 801, the bottom of the first clamping frame 2061 is fixedly connected to the first inclined plate 801, the lower side of the first circular frame 204 is provided with a second circular frame 802, and three evenly distributed extrusion rings 803 are movably connected in the second circular frame 802. The three extrusion rings 803 are arranged in a one-to-one correspondence with the three mounting frames 206. The tops of the three extrusion rings 803 are symmetrically fixed with a pair of telescopic shafts 804 through the mounting plate, and the tops of two adjacent telescopic shafts 804 are fixedly connected to the bottom ends of the corresponding sleeves 205. The tops of the three extrusion rings 803 are symmetrically fixed with a first extrusion block 805 used in conjunction with the first inclined plate 801.

[0039] like Figure 9-10 As shown, it also includes a second inclined plate 901, the bottom of the second clamping frame 2062 is fixedly connected to the second inclined plate 901, the tops of the three extrusion rings 803 are symmetrically fixedly connected to second extrusion blocks 902 used in conjunction with the second inclined plate 901, and the gap between two adjacent first extrusion blocks 805 is larger than the gap between two adjacent second extrusion blocks 902.

[0040] like Figure 10-11 As shown, it also includes an elastic connecting rod 1001. Three evenly distributed elastic connecting rods 1001 are hinged at the bottom of the first circular frame 204. The bottom ends of the three elastic connecting rods 1001 are hinged with tooth blocks 1002. The tooth blocks 1002 are stuck in the second circular frame 802 and are slidably connected thereto. A tooth groove for cooperating with the tooth block 1002 is provided on one side of the extrusion ring 803. The tooth block 1002 can limit the extrusion ring 803 by contacting the tooth groove of the extrusion ring 803.

[0041] First, the staff will pass the base 1 through the three anchor rods and place it on the ground. The anchor rods will pass through the hinged frame 201 and through the through holes of the rotating ball 202 and the bearing seat 203. The anchor rod puller 100 will be set on the outside of the three anchor rods to be tested and placed in the center of the bearing seat 203. Then the staff will set the first round frame 204 on the outside of the three anchor rods, so that the three anchor rods pass through the three extrusion rings 803 and the three mounting frames 206 respectively, and make the bottom of the second round frame 802 fit with the top of the anchor rod puller 100. It is worth noting that the anchor rods are usually threaded steel bars. When installing the anchor rods, different threaded steel bars are installed in different directions, resulting in inconsistent directions of the crescent ribs of each threaded steel bar. The staff will first judge the diameter of the threaded steel bars. After the first clamp 207 or the second clamp 208 is used, it is determined whether the orientation of the first clamp 207 or the second clamp 208 needs to be adjusted according to the orientation of the crescent rib of the threaded steel bar. When the orientation of the crescent rib on the threaded steel bar is consistent with the orientation of the first rib groove of the first clamp 207 or the second rib groove of the second clamp 208, there is no need to adjust the orientation of the first clamp 207 or the second clamp 208. When the orientation of the crescent rib of the threaded steel bar is opposite to the orientation of the first rib groove of the first clamp 207 or the second rib groove of the second clamp 208, it is necessary to change the orientation of the first clamp 207 or the second clamp 208 so that the crescent rib of the threaded steel bar can be stuck in the first rib groove of the first clamp 207 or the second rib groove of the second clamp 208.

[0042] Taking the first clamp 207 as an example, initially, the orientation of the first clamp 207 is as follows: Figure 4As shown, the two corresponding arc plates 301 are stuck in the two slots of the first clamp 207, the elastic limit pin 405 is in a retracted state, the telescopic end of the elastic telescopic rod 401 is in a retracted state, and is against the first clamp 207. The staff first adjusts the first clamp 207 located in one of the mounting frames 206, and slides the two vertical shafts 302 adjacent to the first clamp 207 away from each other. The two vertical shafts 302 respectively drive the corresponding arc plates 301 to slide, so that the two arc plates 301 slide away from each other. The first elastic member contracts, and the two arc plates 301 slide out of the slots of the first clamp 207. During this process, the two vertical shafts 302 respectively drive the corresponding connecting rods 404 to move, and the connecting rods 404 have an effect on the adjacent rotating shafts. The movable frame 403 applies a pulling force, and the rotating frame 403 is forced to rotate with the connection point of the first clamping frame 2061 as the center. At this time, the inner walls of the two rotating frames 403 squeeze the sliding shaft in the connecting block 402, so that the connecting block 402 drives the elastic telescopic rod 401 to move to the side away from the first clamp 207. The second elastic member is forced to contract, so that the gap between the outer wall of the elastic telescopic rod 401 and the first clamp 207 increases, and the telescopic end of the elastic telescopic rod 401 is released and maintains a state of contact with the outer wall of the first clamp 207. As the gap between the outer wall of the elastic telescopic rod 401 and the first clamp 207 increases and is released to extend, the elastic limiting pin 405 is aligned with the hemispherical groove on the inner wall of the elastic telescopic rod 401, and the elastic limiting pin 405 is released and locked in the semi-spherical groove When the first clamp 207 is in the ball groove, the clamping slot of the first clamp 207 is out of the restriction of the arc plate 301, and the first clamp 207 can move. The staff removes the first clamp 207, and the first elastic member is released to drive the arc plate 301 to slide and reset, and then repeat the above steps to remove the other first clamp 207, and swap the positions of the two first clamps 207 and rotate them one hundred and eighty degrees so that the first rib groove of the first clamp 207 is in the same direction as the crescent rib of the threaded steel bar, and then reinstall the two first clamps 207. At this time, the staff fits the first clamp 207 to the first clamping frame 2061, and the side of the first clamp 207 squeezes the telescopic end of the elastic telescopic rod 401. It is worth noting that the elastic force of the elastic limit pin 405 is greater than the elastic telescopic The elastic force of the rod 401 and the second elastic member causes the telescopic end of the elastic limiting pin 405 to squeeze the hemispherical groove, causing the elastic telescopic rod 401 to move as a whole toward the side close to the adjacent bracket 502. The second elastic member is forced to shrink, and the outer wall of the elastic telescopic rod 401 drives the connecting block 402 to move. The connecting block 402 squeezes the inner wall of the rotating frame 403 through the sliding shaft therein, thereby causing the two adjacent rotating frames 403 to rotate with the connection point of the first clamping frame 2061 as the center of the circle. The rotating frame 403 drives the arc plate 301 to slide through the connecting rod 404 and the vertical axis 302. At this time, the two arc plates 301 slide away from each other again, and the first elastic member is forced to shrink until the second elastic member shrinks to the limit, and the outer wall of the elastic telescopic rod 401 can no longer slide.The first clamp 207 continues to squeeze the telescopic end of the elastic telescopic rod 401, so that the elastic limiting pin 405 is squeezed by the hemispherical groove. The elastic limiting pin 405 is forced to shrink and disengage from the hemispherical groove, allowing the telescopic end of the elastic telescopic rod 401 to move. Since the elastic force of the second elastic member is greater than the elastic force of the elastic telescopic rod 401, the second elastic member is released at this time, driving the outer wall of the elastic telescopic rod 401 to slide and reset. The telescopic end of the elastic telescopic rod 401 shrinks, and the outer wall of the elastic telescopic rod 401 drives the connecting block 402 to move and reset, thereby causing the two arc plates 301 to slide and reset. The two arc plates 301 are respectively clamped into the two clamping grooves of the first clamp 207, limiting the first clamp 207, thereby completing the position adjustment process of the first clamp 207, and then repeating the above steps to adjust the directions of the remaining first clamps 207 so that the direction of the first rib groove of the first clamp 207 is consistent with the direction of the crescent rib of the threaded steel bar.

[0043] When the orientation of the second clamp 208 needs to be adjusted, the above steps can be repeated to achieve the same effect.

[0044] Since the circumferential angles of each threaded steel bar are different when the anchor rod is installed, the position of the crescent rib on each threaded steel bar is different. After the orientation of the first clamp 207 or the second clamp 208 is adjusted, the staff lifts up the latch 504 on one of the guide frames 501 to disengage the latch 504 from the several limiting grooves of the first circular frame 204. During this process, the latch 504 squeezes the adjacent elastic wedge block 601 through the wedge groove thereon, and the elastic wedge block 601 shrinks and slides under the force, and then the groove of the elastic wedge block 601 contacts the several teeth 602 on the mounting frame 206, and then the staff rotates the guide frame 501, the guide frame 501 drives the latch 504, the elastic wedge block 601 and the four brackets 502 to rotate, the elastic wedge block 601 drives the mounting frame 206 to revolve around the center of the ring 205 through a plurality of teeth 602, the four brackets 502 drive the internal slide rods 503 to revolve around the center of the ring 205, the four slide rods 503 respectively drive the first clamping frame 2061 and the second clamping frame 2062 to rotate, the first clamping frame 2061 and the second clamping frame 2062 respectively drive the first inclined plate 801 and the second inclined plate 901 at the bottom thereof to rotate, and make the two first clamps 207 and the two second clamps 208 revolve synchronously, At this time, the guide frame 501 and the mounting frame 206 rotate synchronously, and the first guide groove and the second guide groove of the mounting frame 206 will not squeeze the sliding shaft of the inner slide rod 503. When the mounting frame 206 rotates, it will drive the hollow screw 702 to rotate. The hollow screw 702 drives the rotating threaded sleeve 701 to rotate synchronously through friction with the threaded sleeve 701. At the same time, the four brackets 502 drive the corresponding collar 205 to rotate with the connection of the first circular frame 204 as the center of the circle. The collar 205 drives the corresponding extrusion ring 803 to rotate with the connection of the second circular frame 802 as the center of the circle through the telescopic shaft 804. The extrusion ring 803 drives the two first extrusion blocks 805 thereon and the two The second extrusion block 902 rotates, so that the first extrusion block 805 and the second extrusion block 902 are always located on the lower side of the corresponding first inclined plate 801 and the second inclined plate 901. After adjusting the two first clamps 207 and the two second clamps 208 to the appropriate angles, the pin 504 is pressed downward and inserted into the several limit grooves of the first circular frame 204. At this time, the wedge groove of the pin 504 no longer squeezes the elastic wedge block 601, and the elastic wedge block 601 shrinks and slides back to its original position. The groove of the elastic wedge block 601 no longer contacts the several teeth 602 on the mounting frame 206, thereby completing the angle adjustment of the first clamp 207 or the second clamp 208.

[0045] Since the threaded steel bars are usually cut to a suitable length when the anchor rods are installed, the crescent ribs of each threaded steel bar have different heights. After adjusting the orientation of the first clamp 207 or the second clamp 208, the staff needs to adjust the height of the first clamp 207 or the second clamp 208. At this time, the staff can press the mounting bracket 206 to prevent the mounting bracket 206 from rotating, and rotate the threaded sleeve 701. The threaded sleeve 701 drives the mounting bracket 206 to lift upward through the hollow screw 702. The first guide groove and the second guide groove of the mounting bracket 206 squeeze the bottom end of the sliding shaft of the inner slide rod 503, so that the slide rod 503 drives the collar 205 to lift upward through the corresponding bracket 502, and the two first clamps 20 7 and the two second clamps 208 are lifted upward, and the ring 205 drives the extrusion ring 803 to slide upward through the telescopic shaft 804 and the mounting plate. After the mounting plate is lifted upward, a gap is generated between the second circular frame 802 and the extrusion ring 803. The extrusion ring 803 drives the two first extrusion blocks 805 and the two second extrusion blocks 902 thereon to be lifted upward, thereby making the first extrusion block 805 and the second extrusion block 902 maintain a gap with the corresponding first inclined plate 801 and the second inclined plate 901, and then the threaded sleeve 701 is no longer rotated, so that the mounting frame 206, the two first clamps 207 and the two second clamps 208 maintain a stable height, so that the height of the first rib groove of the first clamp 207 or the second rib groove of the second clamp 208 is the same as the height of the crescent rib of the threaded steel bar.

[0046] After completing the adjustment of the first clamp 207 and the second clamp 208, it is necessary to use the first clamp 207 or the second clamp 208 to clamp the threaded steel bar. Initially, the bottom ends of the two first inclined plates 801 are respectively located on the side where the corresponding two first extrusion blocks 805 are away from each other, and the bottom ends of the two second inclined plates 901 are respectively located on the side where the corresponding two second extrusion blocks 902 are away from each other. Taking one of the mounting brackets 206 as an example, when it is necessary to use the first clamp 207 to clamp the threaded steel bar, the positions of the first guide groove and the second guide groove are as follows: Figure 4As shown, the staff rotates the mounting frame 206 clockwise, and at this time the two first guide grooves on the mounting frame 206 squeeze the sliding shaft therein, so that the sliding shaft drives the corresponding sliding rod 503 to slide, and then the two adjacent first clamping frames 2061 move closer to each other, and the first clamping frames 2061 drive the adjacent first clamps 207 to move, and then the two first clamps 207 fit with the outer wall of the threaded steel, and the crescent rib of the threaded steel is stuck in the first rib groove of the first clamp 207. During this process, the two second guide grooves will not squeeze the sliding shaft therein, so that the two second clamps 208 does not move. When the mounting frame 206 rotates, the hollow screw 702 is driven to rotate. The hollow screw 702 drives the rotating threaded sleeve 701 to rotate synchronously by friction with the threaded sleeve 701. When the first clamping frame 2061 moves, the first inclined plate 801 at its bottom is driven to move, so that the two adjacent first inclined plates 801 move closer to each other. After the two first inclined plates 801 move, the bottom ends of the two first inclined plates 801 are located between the sides of the corresponding two first extrusion blocks 805 that are close to each other. The anchor puller 100 is started, and the anchor puller 100 is pressed against the second circular frame 802. The second frame 802 is squeezed and moved along the axial direction of the threaded steel bar. After the second frame 802 moves, the gap between it and the first frame 204 is shortened. The three squeezing rings 803 slide downward relative to the second frame 802. The three elastic connecting rods 1001 rotate upward with the connection point of the first frame 204 as the center of the circle, thereby driving the three gear blocks 1002 to move closer to each other. Subsequently, the gear blocks 1002 contact and squeeze the corresponding tooth grooves of the squeezing ring 803, thereby causing the squeezing ring 803 to stop moving relative to the second frame 802. At this time, the second frame 802 and the first frame 204 are connected. The gap between them continues to shorten, the three elastic connecting rods 1001 are forced to shrink, the gap between the extrusion ring 803 and the corresponding mounting frame 206 is shortened, the telescopic shaft 804 is forced to shrink, and at the same time the first extrusion block 805 contacts and squeezes the inclined surface of the corresponding first inclined plate 801. The first inclined plate 801 is forced to drive the corresponding first clamp 207 through the first clamping frame 2061 to increase the extrusion force on the threaded steel bar, thereby effectively preventing the first clamp 207 from being misaligned with the threaded steel bar. Then the staff can complete the anchor pulling test through the test data of the anchor puller 100.

[0047] When the second clamp 208 needs to be used to clamp the threaded steel bar, the staff rotates the mounting frame 206 counterclockwise. At this time, the two second guide grooves on the mounting frame 206 squeeze the sliding shaft therein, so that the sliding shaft drives the corresponding sliding rod 503 to slide, and then the two adjacent second clamping frames 2062 move closer to each other, and the second clamping frames 2062 drive the adjacent second clamps 208 to move. Then the two second clamps 208 fit the outer wall of the threaded steel bar, and the crescent rib of the threaded steel bar is stuck in the second rib groove of the second clamp 208. During this process, the two first guide grooves will not squeeze the sliding shaft therein, so that the first clamp 207 will not move. The second clamping frame 2062 moves while driving the second inclined plate 9 at its bottom. 01 moves, so that the two adjacent second inclined plates 901 move closer to each other. After the two second inclined plates 901 move, the bottom ends of the two second inclined plates 901 are located between the sides of the corresponding two second extrusion blocks 902 that are close to each other, and then repeat the above steps to shorten the gap between the extrusion ring 803 and the corresponding mounting frame 206, so that the second extrusion block 902 contacts and squeezes the inclined surface of the corresponding second inclined plate 901. The second inclined plate 901 is subjected to force through the second clamping frame 2062 to drive the corresponding second clamp 208 to increase the extrusion force on the threaded steel bar, thereby effectively preventing the second clamp 208 from misalignment with the threaded steel bar. Then the staff reads the test data of the anchor puller 100 to complete the anchor pulling test.

[0048] It is worth noting that after the first inclined plate 801 moves, the second extrusion block 902 is lifted upward and cannot contact the second inclined plate 901. On the contrary, after the second inclined plate 901 moves, the first extrusion block 805 is lifted upward and cannot contact the first inclined plate 801, thereby effectively avoiding mutual collision when the first clamp 207 and the second clamp 208 move at the same time.

[0049] like Figure 12 As shown, it also includes a claw 1101. Four evenly distributed claws 1101 are fixed to the outer wall of the articulated frame 201. A third elastic member is provided between the articulated frame 201 and the base 1. The third elastic member is a compression spring. The four claws 1101 are all slidably connected to the base 1 in a penetrating manner.

[0050] While the anchor puller 100 applies force to the second circular frame 802, the second circular frame 802 applies a reaction force to the anchor puller 100, so that the anchor puller 100 applies downward pressure to the articulated frame 201 through the supporting seat 203 and the rotating ball 202. The articulated frame 201 falls downward under the force, and the third elastic member contracts under the force. The articulated frame 201 drives the four claws 1101 to fall downward, so that the four claws 1101 are inserted into the ground, thereby effectively preventing the base 1 from being misplaced due to force, thereby causing inaccurate test results.

[0051] Then close the anchor puller 100 so that the second circular frame 802 is no longer under force. The second circular frame 802 falls down and resets due to its own weight. The elastic connecting rod 1001 rotates to release and reset, and drives the corresponding tooth block 1002 to slide and reset in the second circular frame 802. Then the staff rotates and resets the mounting frame 206. The first guide groove or the second guide groove of the mounting frame 206 squeezes the sliding shaft inside it, thereby resetting the first clamp 207 or the second clamp 208, and then the entire device can be removed.

[0052] The above is a detailed introduction to the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for those skilled in the art, based on the idea of ​​the present application, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. An anchor rod pull-out test device with adaptive angle, comprising a base (1), characterized in that: The steering mechanism also includes a steering mechanism, which includes an articulated frame (201), the articulated frame (201) is provided on the upper side of the base (1), a rotating ball (202) is rotatably connected in the articulated frame (201), a bearing seat (203) is fixed to the top of the rotating ball (202), through holes are provided on the rotating ball (202) and the bearing seat (203), a clamping mechanism is provided on the upper side of the steering mechanism, the clamping mechanism includes a first round frame (204), a plurality of evenly distributed rings (205) are movably connected in the first round frame (204), and a plurality of the rings (205) are fixed to the top of the rotating ball (202). A mounting frame (206) is provided in each of the collars (205), and a pair of first clamping frames (2061) and second clamping frames (2062) are symmetrically provided in the mounting frame (206), a first clamp (207) for use with the first clamping frame (2061) is provided on one side, and a second clamp (208) for use with the second clamping frame (2062) is provided on one side, a first rib groove is provided on one side of the first clamp (207), and a second rib groove is provided on one side of the second clamp (208), and an adjustment mechanism is provided in the first circular frame (204); The clamping mechanism further includes an arc-shaped plate (301), the first clamping frame (2061) and the second clamping frame (2062) are both symmetrically slidably connected with the arc-shaped plate (301), a first elastic member is provided between the arc-shaped plate (301) and the first clamping frame (2061) or the second clamping frame (2062), one side of the first clamp (207) and the second clamp (208) are both symmetrically provided with a clamping groove for use with the arc-shaped plate (301), a vertical shaft (302) is fixed to the top of the arc-shaped plate (301), and a plurality of the vertical shafts (302) are respectively penetrated and slidably connected with the first clamping frame (2061) or the second clamping frame (2062); The clamping mechanism further comprises an elastic telescopic rod (401), the tops of the first clamping frame (2061) and the second clamping frame (2062) are both slidably connected to the elastic telescopic rod (401), a second elastic member is provided between the outer wall of the elastic telescopic rod (401) and the first clamping frame (2061) and the second clamping frame (2062), a connecting block (402) is fixedly connected to the top of the outer wall of the elastic telescopic rod (401), and the tops of the first clamping frame (2061) and the second clamping frame (2062) are both symmetrically rotatably connected to a rotating frame ( 403), a pair of symmetrically distributed sliding shafts are fixed in the connecting block (402), the sliding shafts are stuck in the rotating frame (403) and slide in the rotating frame (403), one end of the rotating frame (403) is hinged with a connecting rod (404), the connecting rod (404) is rotatably connected to the vertical shaft (302), the outer wall of the telescopic end of the elastic telescopic rod (401) is provided with a vertical groove, an elastic limiting pin (405) is slidably connected in the vertical groove, and the inner wall of the elastic telescopic rod (401) is provided with a hemispherical groove used in conjunction with the elastic limiting pin (405).

2. The self-adaptive anchor pull-out test device according to claim 1, characterized in that: The adjustment mechanism includes a guide frame (501), the upper side of the plurality of said rings (205) is provided with the guide frame (501), the guide frame (501) is slidably connected with a plurality of evenly distributed brackets (502), the bottom ends of the plurality of said brackets (502) are fixedly connected to the top end of the said ring (205), the plurality of said brackets (502) are slidably connected with slide bars (503), and the plurality of said slide bars (503) are respectively connected to the first The clamping frame (2061) or the second clamping frame (2062) is fixed, the bottom of the slide bar (503) is fixed with a sliding shaft, the top of the mounting frame (206) is symmetrically provided with a first guide groove and a second guide groove for use with the slide bar (503), a latch (504) is inserted into the guide frame (501), and the top surface of the first circular frame (204) is provided with a plurality of evenly distributed limiting grooves, and the latch (504) is used in conjunction with the plurality of limiting grooves.

3. The anchor bolt pull-out test device with adaptive angle according to claim 2, characterized in that: The adjustment mechanism also includes an elastic wedge block (601), the elastic wedge block (601) is slidably connected in the guide frame (501), the outer wall of the latch (504) is provided with a wedge groove for use with the elastic wedge block (601), one side of the elastic wedge block (601) is provided with a groove, and the outer wall of the mounting frame (206) is fixed with a plurality of evenly distributed teeth (602), and the plurality of teeth (602) are used in conjunction with the groove.

4. The anchor bolt pull-out test device with adaptive angle according to claim 1, characterized in that: The adjustment mechanism also includes a threaded sleeve (701), the inner walls of several of the collars (205) are movably connected to the threaded sleeve (701), the bottom end of the threaded sleeve (701) is provided with an annular groove, a pair of guide columns (7011) are symmetrically slidably connected in the annular groove, the bottom ends of the pair of guide columns (7011) are fixedly connected to the bottom of the first circular frame (204) through an L-shaped plate, the bottom of the mounting frame (206) is fixedly connected to a hollow screw (702), and the hollow screw (702) is threadedly connected to the threaded sleeve (701).

5. The anchor bolt pull-out test device with adaptive angle according to claim 1, characterized in that: The invention also includes a first inclined plate (801), the bottom of the first clamping frame (2061) is fixedly connected to the first inclined plate (801), the lower side of the first circular frame (204) is provided with a second circular frame (802), and a plurality of uniformly distributed extrusion rings (803) are movably connected in the second circular frame (802), the tops of the plurality of extrusion rings (803) are symmetrically fixedly connected to a pair of telescopic shafts (804) through a mounting plate, the tops of the pair of telescopic shafts (804) are fixedly connected to the bottom end of the sleeve ring (205), and the tops of the plurality of extrusion rings (803) are symmetrically fixedly connected to a first extrusion block (805) used in conjunction with the first inclined plate (801).

6. The self-adaptive angle anchor pull-out test device according to claim 5, characterized in that: It also includes a second inclined plate (901), the bottom of the second clamping frame (2062) is fixedly connected to the second inclined plate (901), and the tops of the plurality of extrusion rings (803) are symmetrically fixedly connected to second extrusion blocks (902) used in conjunction with the second inclined plate (901).

7. The self-adaptive angle anchor pull-out test device according to claim 6, characterized in that: It also includes an elastic connecting rod (1001), and the bottom of the first circular frame (204) is hinged with a plurality of evenly distributed elastic connecting rods (1001), and the bottom ends of the plurality of elastic connecting rods (1001) are hinged with tooth blocks (1002), and the tooth blocks (1002) are inserted into the second circular frame (802) and slidably connected thereto, and a tooth groove for use with the tooth blocks (1002) is opened on one side of the extrusion ring (803).

8. The self-adaptive angle anchor pull-out test device according to claim 1, characterized in that: It also includes a clamping claw (1101), and a plurality of evenly distributed clamping claws (1101) are fixedly connected to the outer wall of the hinged frame (201). A third elastic member is provided between the hinged frame (201) and the base (1), and the plurality of clamping claws (1101) are all in through-sliding connection with the base (1).

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