Concrete post-anchoring anchor bolt construction quality detection device and method

Abstract

The invention relates to the technical field of detection equipment, and provides a concrete post-anchoring anchor bolt construction quality detection device which comprises a base, a lifting assembly is arranged on the base, a supporting plate capable of moving up and down is arranged on the lifting assembly, and a hydraulic rod is fixedly connected to the upper end of the supporting plate. A clamping assembly capable of being opened and closed is arranged at the position, opposite to the output end of the hydraulic rod, of the lower end of the supporting plate; the clamping assembly is matched with the hydraulic rod, so that the end part of the anchor bolt is quickly clamped and locked, and the detection efficiency is improved; clamping blocks of different sizes can be replaced according to conditions, so that the device is suitable for anchor bolts of different models, and the universality is improved; the clamping assembly is matched with the lifting assembly and is suitable for extending anchor bolts with different lengths from concrete; through the arrangement of the fixing assembly, the anchor bolts can be accurately positioned, and the device can also adapt to anchor bolts with different diameters; the data of the anchoring anchor bolt detected by the device is more accurate, and the use process is more convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of detection equipment, and in particular to a device and method for detecting the construction quality of a concrete post-anchoring anchor bolt. Background Art

[0002] In new construction or renovation and reinforcement projects, in recent years, anchor rods, steel bars, embedded bars, anchor bolts and other rods are often deeply buried and fixed to walls (such as bricks and concrete) using anchor glue or other methods to facilitate the subsequent decoration or equipment installation. Whether such anchor rods, steel bars (rods), anchor bolts and brick walls are anchored reliably and meet the requirements of the design, it is necessary to conduct actual pull-out inspections at the construction site to facilitate subsequent engineering surveys and reduce safety hazards in buildings. However, the existing detection is not convenient for locating anchor bolts, and accessories need to be replaced for anchor bolts of different diameters, and the operation process is relatively cumbersome. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a device and method for detecting the construction quality of a concrete post-anchor bolt, which solves the problems raised in the above-mentioned background technology.

[0004] The technical solution of the present invention is as follows:

[0005] A device for inspecting the construction quality of a post-anchor bolt for concrete comprises a base, a lifting assembly is arranged on the base, a support plate which can be moved up and down is arranged on the lifting assembly, a hydraulic rod is fixedly connected to the upper end of the support plate, a clamping assembly which can be opened and closed is arranged at the lower end of the support plate relative to the output end of the hydraulic rod, an opening is arranged on the base for the post-anchor bolt to pass through, and a fixing assembly for fixing the anchor bolt is arranged in the opening.

[0006] Furthermore, the lifting assembly includes a threaded rod rotatably connected to one side of the base and a sliding rod fixedly connected to one side of the base, and a driving assembly is provided at the bottom end of the threaded rod.

[0007] Furthermore, the driving assembly includes a first gear fixedly connected to the bottom end of the threaded rod, a second gear meshing with each other is arranged on one side of the first gear, and a stepping motor is arranged on the second gear.

[0008] Furthermore, the clamping assembly includes a connecting plate fixed to the bottom end of the supporting plate, the output end of the hydraulic rod is fixedly connected to a tension sensor penetrating the connecting plate, clamping plates are hinged on both sides of the connecting plate, hinged assemblies hinged to the clamping plates are arranged on both sides of the tension sensor, and a laser is fixedly connected to the bottom end of the tension sensor.

[0009] Furthermore, the fixing assembly includes a pull rod with one end passing through the base, a connecting frame fixedly connected to one end of the pull rod, a second connecting rod slidably connected to both sides of the connecting frame, and a fixing clamp fixedly connected to the end of the second connecting rod.

[0010] Furthermore, a slide rail for sliding the second connecting rod is fixedly connected to the bottom wall of the base, a sliding block is fixedly connected to the second connecting rod, and the sliding block is slidably connected in a sliding groove provided on the connecting frame.

[0011] Furthermore, the fixing clip is composed of a first fixing clip and a second fixing clip that are cross-matched, and the second fixing clip is provided with a groove having the same width as the first fixing clip.

[0012] Compared with the prior art, the beneficial effects of the concrete post-anchor anchor construction quality inspection device provided by the present invention are as follows: the clamping assembly cooperates with the hydraulic rod to quickly clamp and lock the anchor end, thereby improving the inspection efficiency; the clamping blocks of different sizes can also be replaced according to the situation, so that it is suitable for anchors of different models, improving universality; the clamping assembly cooperates with the lifting assembly, which is suitable for anchors of different lengths extending from the concrete; by setting a fixing assembly, the anchor can be accurately positioned, and can also be adapted to anchors of different diameters.

[0013] The present invention also provides a method for detecting the construction quality of a concrete post-anchor bolt, comprising the following steps:

[0014] Step 1: Pre-test calibration

[0015] Place the base close to the wall and pass the anchor bolt through the opening. The fixing assembly clamps the anchor bolt to fix and limit it. The laser is used for positioning to automatically identify the spatial coordinates of the anchor bolt, and the design deviation is compared with the BIM model.

[0016] Step 2: Clamp and secure the anchor bolt

[0017] The clamping assembly is lowered to a certain position through the lifting assembly, and the hydraulic rod is activated to clamp the anchor bolt;

[0018] Step 3: Dynamic loading test

[0019] The lifting assembly drives the support plate and the clamping assembly to retract the anchor bolt, and slowly rises in a graded loading mode, holding the load for 3 minutes at each level and recording the attenuation data;

[0020] Step 4: Structural judgment

[0021] Combine the pull-out force and displacement curves and output an evaluation report. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a device for detecting the construction quality of concrete post-anchor bolts;

[0023] Figure 2 A cross-sectional view of the base

[0024] Figure 3 is a schematic diagram of the structure of the clamping assembly;

[0025] Figure 4 It is a partial enlarged view of the fixed component;

[0026] Figure 5 is a schematic diagram of the structure of the fixing clip;

[0027] In the figure: 1, base, 101, opening, 2, threaded rod, 3, sliding rod, 4, hydraulic rod, 5, clamping assembly, 501, first connecting rod, 502, connecting plate, 503, tension sensor, 504, hinge assembly, 505, clamping plate, 506, laser, 6, baffle, 7, stepping motor, 8, first gear, 9, second gear, 10, support plate, 11, fixing assembly, 1101, pull rod, 1102, connecting frame, 1103, spring, 1104, slide groove, 1105, second connecting rod, 1106, fixing clip, 11061, first fixing clip, 11062, second fixing clip, 11063, groove, 1107, slide rail, 1108, slider. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. 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.

[0029] As shown in Figures 1-5, a device for inspecting the construction quality of a post-anchor bolt of concrete comprises a base 1, on which a lifting assembly is provided, on which a support plate 10 which can be moved up and down is provided, and the upper end of the support plate 10 is fixedly connected with a hydraulic rod 4, and the lower end of the support plate 10 is provided with an openable and closable clamping assembly 5 at a position relative to the output end of the hydraulic rod 4, and an opening 101 for the post-anchor bolt to pass through is provided on the base 1, and a fixing assembly 11 for fixing the anchor bolt is provided in the opening 101.

[0030] Specifically, the base 1 is provided with an opening 101 for the rear anchor bolt to pass through, and the opening 101 is rectangular. The position of the opening 101 corresponds to the vertical position of the clamping assembly 5. By setting the opening 101, the anchor bolt can be positioned once; by setting the lifting assembly, the clamping assembly 5 on the support plate 10 can be driven to move up and down to adapt to the extended length of different anchor bolts; by setting the clamping assembly 5, anchor bolts of different diameters can be clamped, so as to avoid frequent replacement of accessories and reduce the burden on the staff;

[0031] When in use, the base 1 is pressed against the concrete and the anchor bolt is passed through the opening 101, the lifting assembly is started to move the support plate 10 downward, at which time the clamping assembly 5 is in an open state, and when the clamping assembly 5 moves to the end of the anchor bolt, the hydraulic rod 4 is started, the clamping assembly 5 clamps the anchor bolt, the lifting assembly rises, and the anchor bolt is tested for pull-out resistance.

[0032] like Figure 1 As shown, the lifting assembly includes a threaded rod 2 rotatably connected to one side of the base 1 and a sliding rod 3 fixedly connected to the other side of the base 1, and a driving assembly is provided at the bottom end of the threaded rod 2; the driving assembly includes a first gear 8 fixedly connected to the bottom end of the threaded rod 2, a second gear 9 meshing with each other is provided on one side of the first gear 8, and a stepping motor 7 is provided on the second gear 9.

[0033] Specifically, a mounting groove is provided on one side of the base 1, a bearing is provided at the bottom end of the mounting groove, and a threaded rod 2 is fixedly connected in the bearing; the stepper motor 7 is installed on the base 1, and the output shaft of the stepper motor 7 is fixedly connected to the second gear 9; the outer dimensions of the support plate 10 are consistent with the outer dimensions of the base 1, and the support plate 10 is provided with threaded holes and through holes relative to the positions of the threaded rod 2 and the slide rod 3; the stepper motor 7 is started, the stepper motor 7 drives the second gear 9 to rotate, the second gear 9 meshes and rotates with the first gear 8, the second gear drives the threaded rod 2 to rotate, and the threaded rod 2 drives the support plate 10 to move up and down; in order to prevent the support plate 10 from running out of the threaded rod 2 and the slide rod 3 when moving up and down, a baffle 6 is fixedly connected to the top of the threaded rod 2 and the slide rod 3;

[0034] like Figure 3 As shown, the clamping assembly 5 includes a connecting plate 502 fixed to the bottom end of the support plate 10, the output end of the hydraulic rod 4 is fixedly connected to a tension sensor 503 that passes through the connecting plate 502, clamping plates 505 are hinged on both sides of the connecting plate 502, hinge assemblies 504 hinged to the clamping plates 505 are arranged on both sides of the tension sensor 503, and a laser 506 is fixedly connected to the bottom end of the tension sensor 503.

[0035] Specifically, the output end of the hydraulic rod 4 passes through the through hole provided on the connecting plate 502, and the upper end of the connecting plate 502 is connected to the bottom end of the support plate 10 through the first connecting rod 501; the bottom end of the connecting plate 502 is fixedly connected to a first hinge seat, and a clamping plate 505 is hinged on the first hinge seat. When the two clamping plates 505 are in conflict with each other, the cross-section of the two clamping plates 505 is an inverted trapezoid. When the two clamping plates 505 are in an initial state, the distance between the two clamping plates 505 is greater than the maximum diameter of the largest anchor bolt on the market; the two sides of the tension sensor 503 are fixedly connected to a second hinge seat, and the hinge assembly 504 includes two first hinge rods and a second hinge rod hinged to each other, one end of the first hinge rod is hinged to the second hinge seat, and one end of the second hinge rod is hinged to the inner wall of the clamping plate 505;

[0036] When in the initial state, the output end of the hydraulic rod 4 is fully extended, and the clamping plates 505 on both sides are in a vertical state; when the output end of the hydraulic rod 4 is shortened, the tension sensor 503 rises with the hydraulic rod 4, and the hinge assembly 504 pulls the clamping plates 505 on both sides to move toward each other at the same time to clamp the anchor bolts, and when the clamping plates 505 conflict with each other, the tension sensor 503 does not conflict with the connecting plate 502.

[0037] like Figure 4 and Figure 5 As shown, the fixing assembly 11 includes a pull rod 1101 with one end passing through the base 1, a connecting frame 1102 fixedly connected to one end of the pull rod 1101, a spring 1103 sleeved on the pull rod 1101, a second connecting rod 1105 slidably connected to both sides of the connecting frame 1102, and a fixing clamp 1106 fixedly connected to the end of the second connecting rod 1105.

[0038] Specifically, the connecting frame 1102 is an equilateral trapezoidal structure, one end of the pull rod 1101 is fixedly connected to the horizontal bar on the connecting frame 1102, the two ends of the spring 1103 are respectively in contact with the horizontal bar and the side wall of the base 1, and the two sides of the opening 101 are provided with oblique holes for the second connecting rod 1105 to pass through; a slide rail 1107 for the second connecting rod 1105 to slide is fixedly connected to the bottom wall of the base 1, and a slider 1108 is fixedly connected to the second connecting rod 1105. The fixing clip 1106 is slidably connected in the slide groove 1104 provided on the connecting frame 1102; the fixing clip 1106 is composed of a first fixing clip 11061 and a second fixing clip 11062 which are cross-matched, and a groove 11063 having the same width as the first fixing clip 11061 is provided on the second fixing clip 11062; in order to facilitate the fixing clip 1106 to allow anchor bolts of different diameters to pass through, strip holes are provided on the left and right side walls of the opening 101 for the first fixing clip 11061 and the second fixing clip 11062 to move left and right;

[0039] When the anchor bolt is limited and fixed, the pull rod 1101 is pulled outward, the connecting frame 1102 moves outward at the same time, the spring 1103 is compressed, the slider 1108 on the second connecting rod 1105 moves toward the lower end of the slide groove 1104, and the fixing clips 1106 on both sides move toward both sides and retract into the strip hole; when the anchor bolt is in the fixing clip 1106, the pull rod 1101 is released, the spring 1103 rebounds, the connecting frame 1102 moves inward, the slider 1108 on the second connecting rod 1105 moves toward the upper end of the slide groove 1104, and the fixing clips 1106 on both sides cross-coordinate to fix and limit the anchor bolt.

[0040] In the specific implementation of the present invention, the detection device is provided with a power module and a control module. The control module adopts a control panel, and a wireless module is provided on the control panel. The wireless module is matched with a remote controller (a display screen and a control button are provided on the remote controller) for controlling the lifting and lowering of the hydraulic rod 4, the starting and forward and reverse rotation of the stepper motor 7, the start and stop of the tension sensor 503 and the start and stop of the laser 506. The power module adopts a rechargeable power supply, and the rechargeable power supply is electrically connected to the control panel. The hydraulic rod 4, the stepper motor 7, the tension sensor 503 and the laser 506 are electrically connected to the control panel. The connection method and working principle of the power module, the control module and the hydraulic rod 4, the stepper motor 7, the tension sensor 503 and the laser 506 are all existing technologies and will not be repeated here.

[0041] The working process of the concrete post-anchoring anchor bolt construction quality detection device provided by the present invention is as follows:

[0042] Place the base 1 close to the concrete, pull the tie rod 1101, so that the first fixing clip 11061 and the second fixing clip 11062 are in a separated state, pass the anchor bolt through the first fixing clip 11061 and the second fixing clip 11062, pull the tie rod 1101, and the first fixing clip 11061 and the second fixing clip 11062 are cross-matched to fix the anchor bolt;

[0043] Start the stepper motor 7 to lower the support plate 10 to the end position of the anchor bolt, start the hydraulic rod 4, shorten the end of the hydraulic rod 4, and the hinge assembly 504 drives the clamping plates 505 on both sides to make relative movement; the stepper motor 7 rotates counterclockwise, and the clamping plate 505 performs pull-out resistance test on the anchor bolt as the support plate rises. At this time, the test data is transmitted to the computer through the tension sensor 503.

[0044] The present invention also provides a method for detecting the construction quality of a concrete post-anchoring anchor bolt, comprising the following steps:

[0045] Step 1: Pre-test calibration

[0046] The base 1 is placed close to the wall and the anchor bolt passes through the opening 101. The fixing assembly 11 clamps the anchor bolt to fix and limit the position. The spatial coordinates of the anchor bolt are automatically identified by positioning through laser, and the design deviation is compared with the BIM model.

[0047] Step 2: Clamp and secure the anchor bolt

[0048] The clamping assembly 5 is lowered to a certain position through the lifting assembly, and the hydraulic rod 4 is started to clamp the anchor bolt;

[0049] Step 3: Dynamic loading test

[0050] The lifting assembly drives the support plate 10 and the clamping assembly 5 to retract the anchor bolts, and the load is slowly increased by 20% → 50% → 80% → 100% of the design load in a graded loading mode, and each level is held for 3 minutes and the attenuation data is recorded;

[0051] Step 4: Structural judgment

[0052] Combine the pull-out force and displacement curves and output an evaluation report.

[0053] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for detecting the construction quality of a concrete post-anchor bolt, comprising a base (1), characterized in that: The base (1) is provided with a lifting assembly, the lifting assembly is provided with a support plate (10) that can move up and down, the upper end of the support plate (10) is fixedly connected to a hydraulic rod (4), the lower end of the support plate (10) is provided with an openable and closable clamping assembly (5) at a position relative to the output end of the hydraulic rod (4), the base (1) is provided with an opening (101) for a rear anchor bolt to pass through, and a fixing assembly (11) for fixing the anchor bolt is provided in the opening (101).

2. The device for detecting the construction quality of post-anchorage anchor bolts according to claim 1 is characterized in that: The lifting assembly comprises a threaded rod (2) rotatably connected to one side of the base (1) and a sliding rod (3) fixedly connected to one side of the base (1), and a driving assembly is provided at the bottom end of the threaded rod (2).

3. The device for detecting the construction quality of post-anchorage anchor bolts according to claim 2 is characterized in that: The driving assembly comprises a first gear (8) fixedly connected to the bottom end of the threaded rod (2), a second gear (9) meshing with each other is arranged on one side of the first gear (8), and a stepping motor (7) is arranged on the second gear (9).

4. The device for detecting the construction quality of post-anchorage anchor bolts according to claim 1 is characterized in that: The clamping assembly (5) comprises a connecting plate (502) fixed at the bottom end of the supporting plate (10); the output end of the hydraulic rod (4) is fixedly connected with a tension sensor (503) penetrating the connecting plate (502); clamping plates (505) are hingedly connected on both sides of the connecting plate (502); hinge assemblies (504) hingedly connected to the clamping plates (505) are arranged on both sides of the tension sensor (503); and a laser (506) is fixedly connected to the bottom end of the tension sensor (503).

5. The device for detecting the construction quality of post-anchorage anchor bolts according to claim 1 is characterized in that: The fixing assembly (11) comprises a pull rod (1101) with one end extending through the base (1), a connecting frame (1102) fixedly connected to one end of the pull rod (1101), a second connecting rod (1105) slidably connected to both sides of the connecting frame (1102), and a fixing clamp (1106) fixedly connected to the end of the second connecting rod (1105).

6. The device for detecting the construction quality of post-anchorage anchor bolts according to claim 5 is characterized in that: A slide rail (1107) for sliding the second connecting rod (1105) is fixedly connected to the bottom wall of the base (1), and a slider (1108) is fixedly connected to the second connecting rod (1105). The slider (1108) is slidably connected in a slide groove (1104) provided on the connecting frame (1102).

7. The device for detecting the construction quality of post-anchorage anchor bolts according to claim 5, characterized in that: The fixing clip (1106) is composed of a first fixing clip (11061) and a second fixing clip (11062) that are cross-matched, and the second fixing clip (11062) is provided with a groove (11063) that is consistent with the width of the first fixing clip.

8. A method for detecting the construction quality of a post-anchor bolt for concrete, comprising the device for detecting the construction quality of a post-anchor bolt for concrete according to any one of claims 1 to 7, characterized in that: The following steps are involved: Step 1: Pre-test calibration The base (1) is placed close to the wall and the anchor bolt is passed through the opening (101), the fixing assembly (11) clamps the anchor bolt to fix and limit the position, the spatial coordinates of the anchor bolt are automatically identified by positioning with a laser, and the design deviation is compared with the BIM model; Step 2: Clamp and secure the anchor bolt The clamping assembly (5) is lowered to a certain position by the lifting assembly, and the hydraulic rod (4) is activated to clamp the anchor bolt; Step 3: Dynamic loading test The lifting assembly drives the support plate (10) and the clamping assembly (5) to retract the anchor bolt, and slowly rises in a graded loading mode (20%→50%→80%→100% of the design load), with each level holding the load for 3 minutes and recording the attenuation data; Step 4: Structural judgment Combine the pull-out force and displacement curves and output an evaluation report.

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