A foundation anchor anti-pullout static load test device and method

Abstract

The present invention relates to the technical field of anchor pull-out test, and specifically to a basic anchor pull-out static load test device and method, comprising the ground and the anchor, and also comprising a support frame, a top plate, a lifting assembly, a test assembly, two circular plates, two vertical rods, two sliding blocks and two grounding assemblies, wherein the bottoms of the two circular plates are in contact with the ground, the two vertical rods are respectively arranged on the tops of the two circular plates, the top plate is installed on the tops of the two vertical rods, the two sliding blocks are respectively slidably installed on the two vertical rods, the outer walls of both sides of the support frame are respectively connected to the two sliding blocks, the lifting assembly is installed on the top of the top plate, the two grounding assemblies are symmetrically arranged at the bottom of the support frame, and the test assembly is installed on the top of the top plate. The present invention manually adjusts the two grounding assemblies according to sunny weather or rainy weather. After the adjustment is completed, the two grounding assemblies complete contact with the ground, thereby increasing the friction between the support frame and the ground.

Description

Technical Field

[0001] The invention relates to the technical field of anchor rod pull-out resistance testing, in particular to a basic anchor rod pull-out resistance static load testing device and method. Background Art

[0002] The single pile vertical pullout static load test is to determine the vertical pullout ultimate bearing capacity of the single pile using a test method close to the actual working conditions of vertical pullout. The piles that bear the vertical pullout force are called pullout piles. Pullout piles are widely used in large basement anti-floating, high-rise building pullout, offshore dock platform pullout, suspension bridge and cable-stayed bridge anchor pile foundation, large dock bottom plate pile foundation and static load test pile anchor pile foundation. As the application of pullout piles is becoming more and more widespread, the study of the force characteristics of pullout piles is also very important.

[0003] The Chinese utility model patent number CN212689028U discloses a static load test device for anti-pulling of anchor rods in construction engineering foundations, comprising a support frame located above the anchor rod, a puller is arranged on the support frame, a vertically arranged pull rod is passed through the puller, a fixed anchor is sleeved on the pull rod and contacts the upper end of the puller, the movable lower end of the pull rod passes through the upper surface of the support frame, and a clamping assembly for clamping the anchor rod is hinged at the lower end of the pull rod. The utility model has the advantage that the bent anchor rod can be clamped to facilitate the pull test.

[0004] However, the above patent still has the following shortcomings in actual use: the patent places the support frame on the ground for a static pull-out load test. Once the ground becomes muddy in rainy weather, the support frame is prone to slide and displace on the ground, affecting the test results. Summary of the invention

[0005] The object of the present invention is to provide a foundation anchor anti-pulling static load test device and method to solve the problem raised in the above background technology that the support frame is prone to slide and displace on the ground in rainy weather, thereby affecting the test results.

[0006] The technical solution of the present invention is:

[0007] A basic anchor anti-pulling static load test device comprises the ground and the anchor, and also comprises a support frame, a top plate, a lifting assembly, a test assembly, two circular plates, two vertical rods, two sliding blocks and two grounding assemblies, wherein the bottoms of the two circular plates are in contact with the ground, the two vertical rods are respectively arranged on the tops of the two circular plates, the top plate is installed on the tops of the two vertical rods, the two sliding blocks are respectively slidably installed on the two vertical rods, the outer walls of both sides of the support frame are respectively connected to the two sliding blocks, the lifting assembly is installed on the top of the top plate, and the bottom end of the lifting assembly is connected to the top of the support frame, the two grounding assemblies are symmetrically arranged at the bottom end of the support frame, the test assembly is installed on the top of the top plate, and the bottom end of the test assembly passes through the top plate and the support frame and extends to the side of the anchor.

[0008] Furthermore, each of the grounding components includes a rotating shaft, a grounding frame, a friction plate, a grounding component, an adjusting shaft, a first gear, a second gear, an adjusting handle and a locking component. The rotating shaft is rotatably mounted on the bottom end of the support frame, the grounding frame is mounted on the end of the rotating shaft, the friction plate is mounted on the bottom of the grounding frame, the grounding component is mounted inside the grounding frame, and the top of the grounding frame is provided with a through groove for the grounding component to pass through. The adjusting shaft is rotatably mounted on the outer wall of the bottom end of the support frame, the first gear is mounted on the adjusting shaft, the second gear is mounted on the rotating shaft, and the second gear is meshed with the first gear. The adjusting handle is mounted on the end of the adjusting shaft, and a plurality of grooves are provided on the outer wall of the adjusting handle. The locking component is mounted on the outer wall of the support frame, and the locking component is plugged into and matched with the corresponding grooves.

[0009] Furthermore, the ground-inserting component includes an L-shaped plate, a movable plate, a hydraulic push rod and two limit rods. The L-shaped plate is installed inside the grounding frame, the two limit rods are symmetrically arranged on the L-shaped plate, the movable plate is slidably installed on the two limit rods, the hydraulic push rod is vertically arranged at the inner bottom end of the grounding frame, and the output end of the hydraulic push rod is connected to the bottom of the movable plate, and a plurality of ground-inserting cones are provided on the top of the movable plate.

[0010] Furthermore, the locking component includes a bearing frame, a pull rod, a pull handle, a mounting plate and an insert plate. The bearing frame is installed on the outer wall of the support frame, the pull rod is slidably installed on the bearing frame, the pull handle is installed on the tail end of the pull rod, the mounting plate is installed on the head end of the pull rod, the insert plate is arranged on the side of the mounting plate away from the pull rod, and the insert plate is plugged into the corresponding groove. A reset spring is provided on the outer sleeve of the pull rod, and the two ends of the reset spring are respectively connected to the bearing frame and the mounting plate.

[0011] Furthermore, the lifting assembly includes a fixed frame, a lifting motor, a driving gear, a driving wheel, a driven gear, a driven wheel, a belt and two lifting components, the two lifting components are symmetrically arranged on the top of the top plate, and the bottom ends of the two lifting components are connected to the top of the support frame, each of the lifting components includes a first lifting seat, a second lifting seat, a pulley, a winding wheel, a steel rope and a pull ring, the first lifting seat and the second lifting seat are arranged at an interval on the top of the top plate, the first lifting seat and the second lifting seat are respectively rotatably installed with a first lifting shaft and a second lifting shaft, one end of the second lifting shaft extends to the outside of the second lifting seat, and the pulley is installed On the first lifting shaft, the winding wheel is installed on the second lifting shaft, the pulling ring is installed on the top of the support frame, the top end of the steel rope is connected to the winding wheel, and the bottom end of the steel rope is connected to the pulling ring after passing through the pulley, the fixing frame is installed on the top of the top plate, the lifting motor is horizontally arranged on the top of the fixing frame, the driving gear and the driving wheel are arranged at intervals on the output shaft of the lifting motor, the driven gear is installed at the end of the second lifting shaft in one of the lifting components, and the driven gear is meshed with the driving gear, the driven wheel is installed at the end of the second lifting shaft in the other lifting component, and the belt sleeve is arranged on the outside of the driving wheel and the driven wheel.

[0012] Furthermore, the test assembly includes a pulling instrument, a pulling rod, a pulling block and two connecting components. The pulling instrument is arranged on the top of the top plate, the pulling rod is vertically arranged on the pulling instrument, and the bottom end of the pulling rod passes through the top plate and the support frame to extend to above the anchor rod, the pulling block is installed at the bottom of the pulling rod, the two connecting components are symmetrically arranged at the bottom of the pulling block, and the two connecting components are located beside the anchor rod, and the two connecting components are used to fix the anchor rod.

[0013] Furthermore, each of the connecting components includes an articulated seat, an articulated plate, a screw sleeve, a screw rod, a connecting arc sleeve and a connecting handle. The articulated seat is installed at the bottom of the pulling block, the top of the articulated plate is hinged to the articulated seat, the screw sleeve is horizontally arranged on the outer wall of the bottom end of the articulated plate, the screw rod is arranged in the screw sleeve, and both ends of the screw rod extend to the outside of the screw sleeve, the screw rod is threadedly matched with the screw sleeve, the connecting arc sleeve is installed at the head end of the screw rod, the connecting handle is installed at the tail end of the screw rod, and the connecting arc sleeve is provided with four connecting holes distributed in a rectangular shape.

[0014] Furthermore, a two-way locking bolt is provided on the connecting hole.

[0015] Furthermore, a plurality of friction grooves are provided at the bottom of the friction plate.

[0016] A method for testing a static load test device for the pull-out resistance of a foundation anchor comprises the following steps:

[0017] S1. Place two circular plates on the ground. The lifting motor drives the two lifting components to work. The two lifting components drive the support frame to move downward. The support frame drives the two grounding components to move downward until they are close to the ground.

[0018] S2. In sunny weather, the friction plate is located at the bottom of the grounding frame, and then the lifting motor continues to work to drive the friction plate to move downward to contact the ground. In rainy weather, the locking component is separated from the corresponding groove, and the rotating adjustment handle drives the adjustment shaft and the first gear to rotate. The first gear drives the rotating shaft and the grounding frame to rotate using the second gear. The grounding frame drives the ground insertion component to rotate close to the ground, and the locking component is plugged into the corresponding groove to lock the adjustment handle;

[0019] S3, the hydraulic push rod drives the moving plate to move downward on the two limit rods, and the moving plate drives a plurality of ground inserting cones to move downward through the through slots and insert into the ground;

[0020] S4. Use the connecting handles in the two connecting parts to rotate, so that the connecting handles drive the screw rod to rotate, and the screw rod drives the connecting arc sleeve to approach the anchor rod while rotating, and then the connecting arc sleeves in the two connecting parts are connected by using a two-way locking bolt;

[0021] S5. The pull-out instrument uses a pulling rod and a pulling block to perform static pull-out load tests on anchor rods.

[0022] The present invention provides a foundation anchor anti-pulling static load test device and method through improvement, which has the following improvements and advantages compared with the prior art:

[0023] First, in sunny weather, the friction plate of the present invention is located at the bottom of the grounding frame, and then the friction plate contacts the ground; in rainy weather, the locking component is separated from the corresponding groove, and the adjusting handle is rotated to drive the adjusting shaft and the first gear to rotate. The first gear uses the second gear to rotate the rotating shaft and the grounding frame, and the grounding frame drives the ground-inserting component to rotate close to the ground. Finally, the ground-inserting component is inserted into the ground to ensure that no sliding displacement occurs between the support frame and the ground in rainy weather, thereby ensuring the accuracy of the test.

[0024] Secondly, the present invention drives the pull rod to move by pulling the pull handle, and the pull rod drives the mounting plate and the plug plate to move. The plug plate moves to separate from the corresponding groove. At this time, the adjustment handle can rotate. When the adjustment handle needs to be locked and limited, it only needs to release the pull handle. Under the action of the reset spring, the plug plate is quickly inserted into the corresponding groove at this time, which is very convenient.

[0025] Thirdly, the present invention drives the screw rod to rotate by using the connecting handle, and the screw rod drives the connecting arc sleeve to approach the anchor rod while rotating, and then the connecting arc sleeves in the two connecting parts tightly surround the anchor rod, and the connecting arc sleeves in the two connecting parts are connected by using the connecting hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further explained below in conjunction with the accompanying drawings and Examples:

[0027] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 ;

[0028] Figure 2 The three-dimensional structure of the present invention is shown in FIG. Figure 2 ;

[0029] Figure 3 is a front view of the present invention;

[0030] Figure 4 The three-dimensional structure of the grounding assembly of the present invention is shown in FIG. Figure 1 ;

[0031] Figure 5 The three-dimensional structure of the grounding assembly of the present invention is shown in FIG. Figure 2 ;

[0032] Figure 6 The three-dimensional structure of the grounding assembly of the present invention is shown in FIG. Figure 3 ;

[0033] Figure 7 It is a three-dimensional structural schematic diagram of the locking component of the present invention;

[0034] Figure 8 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 1 ;

[0035] Fig. 9 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 2 ;

[0036] Fig.10 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 3 ;

[0037] Fig.11 It is a three-dimensional structural schematic diagram of the connecting component of the present invention.

[0038] Description of reference numerals:

[0039] Ground 1, anchor rod 2, support frame 3, top plate 31, lifting assembly 4, fixed frame 41, lifting motor 42, driving gear 43, driving wheel 44, driven gear 45, driven wheel 46, belt 47, lifting component 48, first lifting seat 481, second lifting seat 482, pulley 483, winding wheel 484, steel rope 485, pull ring 486, first lifting shaft 487, second lifting shaft 488, test assembly 5, pulling instrument 51, pulling rod 52, pulling block 53, connecting component 54, hinge seat 541, hinge plate 542, screw sleeve 543, screw rod 544, connecting arc sleeve 5 45, connecting handle 546, connecting hole 547, two-way locking bolt 548, circular plate 6, vertical rod 7, sliding block 8, grounding assembly 9, rotating shaft 91, grounding frame 92, through groove 921, friction plate 93, friction groove 931, grounding component 94, L-shaped plate 941, movable plate 942, hydraulic push rod 943, limit rod 944, grounding cone 945, adjusting shaft 95, first gear 96, second gear 97, adjusting handle 98, groove 981, locking component 99, supporting frame 991, pull rod 992, pull handle 993, mounting plate 994, plug plate 995, reset spring 996. Implementation

[0040] The present invention is described in detail below, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] The present invention provides a foundation anchor anti-pulling static load test device through improvement. Figure 1-Figure 11As shown, it includes the ground 1 and the anchor rod 2, and also includes a support frame 3, a top plate 31, a lifting component 4, a test component 5, two circular plates 6, two vertical rods 7, two sliding blocks 8 and two grounding components 9, the bottoms of the two circular plates 6 are in contact with the ground 1, the two vertical rods 7 are respectively arranged on the tops of the two circular plates 6, the top plate 31 is installed on the tops of the two vertical rods 7, the two sliding blocks 8 are respectively slidably installed on the two vertical rods 7, the outer walls of both sides of the support frame 3 are respectively connected to the two sliding blocks 8, the lifting component 4 is installed on the top of the top plate 31, and the bottom end of the lifting component 4 is connected to the top of the support frame 3, the two grounding components 9 are symmetrically arranged at the bottom end of the support frame 3, and the test component 5 is installed on the top The top of the plate 31, and the bottom end of the test component 5 passes through the top plate 31 and the support frame 3 to extend to the side of the anchor rod 2; by placing two circular plates 6 on the ground 1, and then the lifting component 4 works to drive the support frame 3 and the two sliding blocks 8 to move downward on the two vertical rods 7, the support frame 3 drives the two grounding components 9 to move downward close to the ground 1, and then the two grounding components 9 are manually adjusted according to sunny weather or rainy weather. After the adjustment is completed, the two grounding components 9 complete the contact with the ground 1, increasing the friction between the support frame 3 and the ground 1, and finally the test component 5 works to perform a pull-out static load test on the anchor rod 2. In rainy weather, the support frame 3 will not slide and displace on the ground 1, ensuring the test accuracy of the test component 5.

[0042] Specifically, each of the grounding components 9 includes a rotating shaft 91, a grounding frame 92, a friction plate 93, a grounding component 94, an adjusting shaft 95, a first gear 96, a second gear 97, an adjusting handle 98 and a locking component 99. The rotating shaft 91 is rotatably mounted on the bottom end of the support frame 3, the grounding frame 92 is mounted on the end of the rotating shaft 91, the friction plate 93 is mounted on the bottom of the grounding frame 92, the grounding component 94 is mounted inside the grounding frame 92, and the top of the grounding frame 92 is provided with a through groove 921 for the grounding component 94 to pass through, the adjusting shaft 95 is rotatably mounted on the outer wall of the bottom end of the support frame 3, the first gear 96 is mounted on the adjusting shaft 95, the second gear 97 is mounted on the rotating shaft 91, and the second gear 97 is meshed with the first gear 96, and the adjusting handle 98 is mounted on the adjusting shaft 98. At the end of the joint shaft 95, a plurality of grooves 981 are provided on the outer wall of the adjusting handle 98, and the locking component 99 is installed on the outer wall of the support frame 3, and the locking component 99 is plugged into the corresponding groove 981; in sunny weather, the friction plate 93 is located at the bottom of the grounding frame 92, and then the friction plate 93 contacts the ground 1, and in rainy weather, the locking component 99 is separated from the corresponding groove 981, and the adjusting handle 98 is rotated to drive the adjusting shaft 95 and the first gear 96 to rotate, and the first gear 96 uses the second gear 97 to rotate the rotating shaft 91 and the grounding frame 92, and the grounding frame 92 drives the ground insertion component 94 to rotate close to the ground 1, and finally the ground insertion component 94 is inserted into the ground 1 to ensure that no sliding displacement occurs between the support frame 3 and the ground 1 in rainy weather, thereby ensuring the accuracy of the test.

[0043] Specifically, the ground insertion component 94 includes an L-shaped plate 941, a movable plate 942, a hydraulic push rod 943 and two limit rods 944. The L-shaped plate 941 is installed inside the ground frame 92, and the two limit rods 944 are symmetrically arranged on the L-shaped plate 941. The movable plate 942 is slidably installed on the two limit rods 944. The hydraulic push rod 943 is vertically arranged at the inner bottom end of the ground frame 92, and the output end of the hydraulic push rod 943 is connected to the bottom of the movable plate 942. A plurality of ground insertion cones 945 are provided on the top of the movable plate 942; the movable plate 942 is driven by the hydraulic push rod 943 to move downward on the two limit rods 944, and the movable plate 942 drives the plurality of ground insertion cones 945 to move downward through the through groove 921 and insert into the ground 1. The plurality of ground insertion cones 945 are inserted into the ground 1 to ensure the stability between the support frame 3 and the ground 1.

[0044] Specifically, the locking component 99 includes a carrier frame 991, a pull rod 992, a pull handle 993, a mounting plate 994 and an insert plate 995. The carrier frame 991 is mounted on the outer wall of the support frame 3, the pull rod 992 is slidably mounted on the carrier frame 991, the pull handle 993 is mounted on the tail end of the pull rod 992, the mounting plate 994 is mounted on the head end of the pull rod 992, the insert plate 995 is arranged on the side of the mounting plate 994 away from the pull rod 992, and the insert plate 995 is plugged into the corresponding groove 981. The outer sleeve is provided with a return spring 996, and the two ends of the return spring 996 are respectively connected to the support frame 991 and the mounting plate 994; by pulling the handle 993, the pull rod 992 is driven to move, and the pull rod 992 drives the mounting plate 994 and the plug plate 995 to move, and the plug plate 995 moves to separate from the corresponding groove 981. At this time, the adjusting handle 98 can be rotated. When the adjusting handle 98 needs to be locked and limited, just loosen the handle 993, and the plug plate 995 is quickly inserted into the corresponding groove 981 under the action of the return spring 996, which is very convenient.

[0045] Specifically, the lifting assembly 4 includes a fixing frame 41, a lifting motor 42, a driving gear 43, a driving wheel 44, a driven gear 45, a driven wheel 46, a belt 47 and two lifting components 48, the two lifting components 48 are symmetrically arranged on the top of the top plate 31, and the bottom ends of the two lifting components 48 are connected to the top of the support frame 3, each of the lifting components 48 includes a first lifting seat 481, a second lifting seat 482, a pulley 483, a winding wheel 484, a steel rope 485 and a pull ring 486, the The first lifting seat 481 and the second lifting seat 482 are arranged at a distance from each other on the top of the top plate 31. The first lifting seat 481 and the second lifting seat 482 are rotatably mounted with a first lifting shaft 487 and a second lifting shaft 488, respectively. One end of the second lifting shaft 488 extends to the outside of the second lifting seat 482. The pulley 483 is mounted on the first lifting shaft 487, the winding wheel 484 is mounted on the second lifting shaft 488, the pull ring 486 is mounted on the top of the support frame 3, and the top of the steel rope 485 is mounted on the top of the support frame 3. The end is connected to the winding wheel 484, the bottom end of the steel rope 485 passes through the pulley 483 and is connected to the pull ring 486, the fixed frame 41 is installed on the top of the top plate 31, the lifting motor 42 is horizontally arranged on the top of the fixed frame 41, the driving gear 43 and the driving wheel 44 are arranged on the output shaft of the lifting motor 42 at intervals, the driven gear 45 is installed at the end of the second lifting shaft 488 in one of the lifting components 48, and the driven gear 45 is meshed with the driving gear 43, and the driven wheel 46 is installed At the end of the second lifting shaft 488 in the other lifting component 48, the belt 47 is sleeved on the outside of the driving wheel 44 and the driven wheel 46; the lifting motor 42 drives the driving gear 43 and the driving wheel 44 to rotate, the driving gear 43 drives the driven gear 45 to rotate, and the driving wheel 44 drives the driven wheel 46 to rotate by the belt 47. The rotation directions of the driven gear 45 and the driven wheel 46 are opposite, ensuring that the two lifting components 48 can synchronously drive the movement of the pull ring 486, thereby realizing the lifting and lowering movement of the support frame 3.

[0046] Specifically, the test assembly 5 includes a puller 51, a pulling rod 52, a pulling block 53 and two connecting components 54. The puller 51 is arranged on the top of the top plate 31, the pulling rod 52 is vertically arranged on the puller 51, and the bottom end of the pulling rod 52 extends through the top plate 31 and the support frame 3 to the top of the anchor rod 2, the pulling block 53 is installed at the bottom of the pulling rod 52, the two connecting components 54 are symmetrically arranged at the bottom of the pulling block 53, and the two connecting components 54 are located on the sides of the anchor rod 2, and the two connecting components 54 are used to fix the anchor rod 2; the two connecting components 54 quickly fix the anchor rod 2, and then the puller 51 works to use the pulling rod 52 and the pulling block 53 to perform a static pull-out load test on the anchor rod 2.

[0047] Specifically, each of the connecting components 54 includes a hinge seat 541, a hinge plate 542, a screw sleeve 543, a screw rod 544, a connecting arc sleeve 545 and a connecting handle 546. The hinge seat 541 is installed at the bottom of the pulling block 53, the top of the hinge plate 542 is hinged to the hinge seat 541, the screw sleeve 543 is horizontally arranged on the outer wall of the bottom end of the hinge plate 542, the screw rod 544 is arranged in the screw sleeve 543, and both ends of the screw rod 544 extend to the outside of the screw sleeve 543, and the screw 544 and the screw sleeve 543 are threaded. In coordination, the connecting arc sleeve 545 is installed at the head end of the screw rod 544, and the connecting handle 546 is installed at the tail end of the screw rod 544. The connecting arc sleeve 545 is provided with four connecting holes 547 distributed in a rectangular shape. By using the connecting handle 546 to drive the screw rod 544 to rotate, the screw rod 544 drives the connecting arc sleeve 545 to approach the anchor rod 2 while rotating, and then the connecting arc sleeves 545 in the two connecting parts 54 tightly surround the anchor rod 2, and finally the connecting holes 547 are used to connect the connecting arc sleeves 545 in the two connecting parts 54.

[0048] Specifically, a bidirectional locking bolt 548 is provided on the connection hole 547 ; the bidirectional locking bolt 548 facilitates the quick threaded connection of the connection arc sleeves 545 in the two connection components 54 .

[0049] Specifically, a plurality of friction grooves 931 are provided at the bottom of the friction plate 93 ; the friction grooves 931 increase the friction force between the friction plate 93 and the ground 1 .

[0050] The present invention also provides a method for testing a static load test device for the pull-out resistance of a foundation anchor rod, comprising the following steps:

[0051] S1. Place two circular plates 6 on the ground 1. The lifting motor 42 drives the two lifting components 48 to work. The two lifting components 48 drive the support frame 3 to move downward. The support frame 3 drives the two grounding components 9 to move downward to be close to the ground 1.

[0052] S2. In sunny weather, the friction plate 93 is located at the bottom of the grounding frame 92, and then the lifting motor 42 continues to work to drive the friction plate 93 to move downward and contact the ground 1. In rainy weather, the locking component 99 is separated from the corresponding groove 981, and the rotating adjustment handle 98 drives the adjustment shaft 95 and the first gear 96 to rotate. The first gear 96 drives the rotating shaft 91 and the grounding frame 92 to rotate by the second gear 97. The grounding frame 92 drives the ground insertion component 94 to rotate close to the ground 1, and the locking component 99 is plugged into the corresponding groove 981 to lock the adjustment handle 98;

[0053] S3, the hydraulic push rod 943 drives the movable plate 942 to move downward on the two limit rods 944, and the movable plate 942 drives a plurality of ground-inserting cones 945 to move downward through the through slots 921 and insert into the ground 1;

[0054] S4. Use the connecting handle 546 in the two connecting parts 54 to rotate. The connecting handle 546 drives the screw rod 544 to rotate. The screw rod 544 drives the connecting arc sleeve 545 to approach the anchor rod 2 while rotating. Then, the connecting arc sleeves 545 in the two connecting parts 54 are connected by the two-way locking bolt 548.

[0055] S5. The puller 51 works by using the pull rod 52 and the pull block 53 to perform a static pull-out load test on the anchor rod 2.

[0056] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A static load test device for anti-pulling of foundation anchor rods, comprising a ground surface (1) and an anchor rod (2), characterized in that: The test assembly also comprises a support frame (3), a top plate (31), a lifting assembly (4), a test assembly (5), two circular plates (6), two vertical rods (7), two sliding blocks (8) and two grounding assemblies (9), wherein the bottoms of the two circular plates (6) are in contact with the ground (1), the two vertical rods (7) are respectively arranged on the tops of the two circular plates (6), the top plate (31) is mounted on the tops of the two vertical rods (7), the two sliding blocks (8) are respectively slidably mounted on the two vertical rods (7), the outer walls on both sides of the support frame (3) are respectively connected to the two sliding blocks (8), the lifting assembly (4) is mounted on the top of the top plate (31), and the bottom end of the lifting assembly (4) is connected to the top of the support frame (3), and the two vertical rods (7) are respectively arranged on the tops of the two circular plates (6). The grounding components (9) are symmetrically arranged at the bottom end of the support frame (3), the test components (5) are installed on the top of the top plate (31), and the bottom end of the test components (5) passes through the top plate (31) and the support frame (3) and extends to the side of the anchor rod (2); each of the grounding components (9) comprises a rotating shaft (91), a grounding frame (92), a friction plate (93), a grounding component (94), an adjustment shaft (95), a first gear (96), a second gear (97), an adjustment handle (98) and a locking component (99), the rotating shaft (91) is rotatably installed at the bottom end of the support frame (3), the grounding frame (92) is installed at the end of the rotating shaft (91), and the friction plate (93) is installed at the grounding frame (91). The grounding frame (92) is provided at the bottom of the support frame (3), the grounding inserting component (94) is installed inside the grounding frame (92), the top of the grounding frame (92) is provided with a through slot (921) for the grounding inserting component (94) to pass through, the adjusting shaft (95) is rotatably installed on the outer wall of the bottom end of the support frame (3), the first gear (96) is installed on the adjusting shaft (95), the second gear (97) is installed on the rotating shaft (91), and the second gear (97) is meshed with the first gear (96), the adjusting handle (98) is installed at the end of the adjusting shaft (95), and the outer wall of the adjusting handle (98) is provided with a plurality of grooves (981), and the locking component (99) is installed on the outer wall of the support frame (3) and is locked. The component (99) is plugged into and matched with the corresponding groove (981); the ground insertion component (94) comprises an L-shaped plate (941), a movable plate (942), a hydraulic push rod (943) and two limit rods (944); the L-shaped plate (941) is installed inside the ground frame (92); the two limit rods (944) are symmetrically arranged on the L-shaped plate (941); the movable plate (942) is slidably installed on the two limit rods (944); the hydraulic push rod (943) is vertically arranged at the bottom end of the inside of the ground frame (92); and the output end of the hydraulic push rod (943) is connected to the bottom of the movable plate (942); and a plurality of ground insertion cones (945) are arranged on the top of the movable plate (942);The locking component (99) comprises a bearing frame (991), a pull rod (992), a pull handle (993), a mounting plate (994) and an inserting plate (995); the bearing frame (991) is mounted on the outer wall of the support frame (3); the pull rod (992) is slidably mounted on the bearing frame (991); the pull handle (993) is mounted on the tail end of the pull rod (992); the mounting plate (994) is mounted on the head end of the pull rod (992); the inserting plate (995) is arranged on a side of the mounting plate (994) away from the pull rod (992), and the inserting plate (995) is plugged into and matched with the corresponding groove (981); a return spring (996) is sleeved on the outside of the pull rod (992); and two ends of the return spring (996) are respectively connected to the bearing frame (991) and the mounting plate (994). ; 2. A static load test device for anti-pulling of foundation anchor rods according to claim 1, characterized in that: The lifting assembly (4) comprises a fixing frame (41), a lifting motor (42), a driving gear (43), a driving wheel (44), a driven gear (45), a driven wheel (46), a belt (47) and two lifting components (48), wherein the two lifting components (48) are symmetrically arranged on the top of the top plate (31), and the bottom ends of the two lifting components (48) are connected to the top of the support frame (3), and each of the lifting components (48) comprises a first lifting seat (481), a second lifting seat (482), and a second lifting seat (483). 82), a pulley (483), a winding wheel (484), a steel rope (485) and a pull ring (486), the first lifting seat (481) and the second lifting seat (482) are arranged at a distance on the top of the top plate (31), the first lifting seat (481) and the second lifting seat (482) are respectively rotatably mounted with a first lifting shaft (487) and a second lifting shaft (488), one end of the second lifting shaft (488) extends to the outside of the second lifting seat (482), the pulley (483) ) is installed on the first lifting shaft (487), the winding wheel (484) is installed on the second lifting shaft (488), the pull ring (486) is installed on the top of the support frame (3), the top end of the steel rope (485) is connected to the winding wheel (484), the bottom end of the steel rope (485) passes through the pulley (483) and is connected to the pull ring (486), the fixed frame (41) is installed on the top of the top plate (31), and the lifting motor (42) is horizontally arranged on the top of the fixed frame (41), The driving gear (43) and the driving wheel (44) are arranged at intervals on the output shaft of the lifting motor (42); the driven gear (45) is installed at the end of the second lifting shaft (488) in one of the lifting components (48), and the driven gear (45) is meshed with the driving gear (43); the driven wheel (46) is installed at the end of the second lifting shaft (488) in the other lifting component (48); and the belt (47) is sleeved on the outside of the driving wheel (44) and the driven wheel (46).

3. A static load test device for anti-pulling of foundation anchor rods according to claim 2, characterized in that: The test assembly (5) comprises a pulling instrument (51), a pulling rod (52), a pulling block (53) and two connecting components (54), wherein the pulling instrument (51) is arranged on the top of the top plate (31), the pulling rod (52) is vertically arranged on the pulling instrument (51), and the bottom end of the pulling rod (52) passes through the top plate (31) and the support frame (3) to extend to the top of the anchor rod (2), the pulling block (53) is installed at the bottom of the pulling rod (52), and the two connecting components (54) are symmetrically arranged at the bottom of the pulling block (53), and the two connecting components (54) are located beside the anchor rod (2), and the two connecting components (54) are used to fix the anchor rod (2).

4. A static load test device for anti-pulling of foundation anchor rods according to claim 3, characterized in that: Each of the connecting components (54) comprises a hinge seat (541), a hinge plate (542), a screw sleeve (543), a screw rod (544), a connecting arc sleeve (545) and a connecting handle (546); the hinge seat (541) is installed at the bottom of the pulling block (53); the top end of the hinge plate (542) is hinged to the hinge seat (541); the screw sleeve (543) is horizontally arranged on the outer wall of the bottom end of the hinge plate (542); The screw rod (544) is arranged in the screw sleeve (543), and both ends of the screw rod (544) extend to the outside of the screw sleeve (543). The screw rod (544) and the screw sleeve (543) are threadedly matched. The connecting arc sleeve (545) is installed at the head end of the screw rod (544), and the connecting handle (546) is installed at the tail end of the screw rod (544). The connecting arc sleeve (545) is provided with four connecting holes (547) distributed in a rectangular shape.

5. A static load test device for anti-pulling of foundation anchor rods according to claim 4, characterized in that: A bidirectional locking bolt (548) is provided on the connection hole (547).

6. A static load test device for anti-pulling of foundation anchor rods according to claim 5, characterized in that: A plurality of friction grooves (931) are provided at the bottom of the friction plate (93).

7. A method for testing the static load of a foundation anchor bolt pullout resistance according to claim 6, characterized in that: The following steps are included: S1. Place two circular plates (6) on the ground (1), drive the lifting motor (42) to drive the two lifting components (48) to work, the two lifting components (48) drive the support frame (3) to move downward, and the support frame (3) drives the two grounding components (9) to move downward until they are close to the ground (1); S2. In sunny weather, the friction plate (93) is located at the bottom of the grounding frame (92), and then the lifting motor (42) continues to work to drive the friction plate (93) to move downward and contact the ground (1). In rainy weather, the locking component (99) is separated from the corresponding groove (981), and the rotating adjustment handle (98) drives the adjustment shaft (95) and the first gear (96) to rotate. The first gear (96) drives the rotating shaft (91) and the grounding frame (92) to rotate by using the second gear (97). The grounding frame (92) drives the ground insertion component (94) to rotate close to the ground (1), and the locking component (99) is plugged into the corresponding groove (981) to lock the adjustment handle (98); S3, the hydraulic push rod (943) drives the movable plate (942) to move downward on the two limit rods (944), and the movable plate (942) drives a plurality of ground-inserting cones (945) to move downward through the through slots (921) and be inserted into the ground (1); S4. The connecting handles (546) in the two connecting parts (54) are rotated, and the connecting handles (546) drive the screw rod (544) to rotate. The screw rod (544) drives the connecting arc sleeve (545) to approach the anchor rod (2) while rotating. Then, the connecting arc sleeves (545) in the two connecting parts (54) are connected by using a two-way locking bolt (548); S5. The pull-out instrument (51) uses the pull rod (52) and the pull block (53) to perform a static pull-out load test on the anchor rod (2).

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