Concrete anchoring anti-drawing tester

Abstract

The utility model discloses a concrete anchoring anti-pulling tester, which relates to the technical field of anchoring quality detection equipment and comprises a base, and two rectangular plates are fixedly mounted at the top of the base. During use, firstly, the base is placed on an anchor rod to be tested, observation is performed through the horizontal assembly, when an inclination phenomenon is found, the rotating unit is rotated to drive the screw rod guide sleeve to rotate, then the supporting plate is driven to move downwards under the action of the limiting unit and the screw rod, and the levelness of the base is adjusted. The driving motor is started to drive one concave disc to rotate, then the other concave disc is driven to rotate synchronously under the action of the transmission assembly, so that the angle of the mounting frame is adjusted on the two arc-shaped tables, the angle of the mounting frame is parallel to the angle of the anchor rod, the two hydraulic cylinders are started to drive the V-shaped clamping block to move towards the anchor rod, and the anchor rod is fixed. And then the hydraulic cylinder is started to carry out an anti-pulling test, and experimental data are recorded under the action of the tension sensor.

Description

Technical Field

[0001] The utility model relates to the technical field of anchoring quality detection equipment, in particular to a concrete anchoring anti-pullout tester. Background Art

[0002] The pullout test is a test method used to verify the anchoring strength of various anchors, such as anchor rods and rebar, on-site. Generally, after 48-72 hours, the rebar can be subjected to a pullout test using an anchor pullout tester. Rebar planting involves drilling holes into a substrate, such as a concrete wall, injecting high-strength rebar adhesive, inserting rebar or profiles, and then bonding the rebar to the substrate. This is a commonly used construction technique in the reinforcement industry.

[0003] The patent with publication number CN218937992U in the prior art discloses a miniature pull-out instrument for steel bar pull-out detection test, which can perform pull-out tests on anchor rods and steel bars in a vertical state. However, in actual use, since anchor rods and steel bars are often tilted during installation, the exposed ends will also have an inclination. It is impossible to adjust the inclination of hydraulic rods, connectors, tension sensors, connecting plates, stretching parts, and V-shaped blocks, making it difficult to fix and perform pull-out tests on anchor rods and steel bars in an inclined state. The practicality is low, and when in use, the horizontal state of the base cannot be adjusted, making it difficult to obtain more accurate test data. In response to the above problems, a concrete anchor pull-out tester is proposed. Utility Model Content

[0004] The purpose of this application is to provide a concrete anchor pull-out tester to solve the problems raised in the above-mentioned background technology that it is difficult to fix and perform pull-out tests on anchor rods and steel bars in an inclined state, the practicality is low, and when in use, the horizontal state of the base cannot be adjusted, making it difficult to obtain more accurate test data.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a concrete anchor pull-out tester, comprising a base, a mounting frame, a connector, a tension sensor, a connecting plate, a stretching portion, a mounting slot, a positioning slot, a V-shaped block, anti-slip teeth, a guide rod, a spring, a fixing plate, and a locking rod. Two rectangular plates are fixedly mounted on the top of the base, and the opposite sides of the two rectangular plates are rotatably mounted with rotating shafts. A driving motor is mounted on the side of one of the rectangular plates, and the output shaft of the driving motor is connected to the end of one of the rotating shafts. The ends of the two rotating shafts close to each other are fixedly sleeved with concave disks, and the two concave disks are connected by a transmission assembly. The two The inner walls of the circumference of the concave disk are fixedly installed with curved platforms, and the sides of the two curved platforms are fixedly installed with hydraulic cylinders. The mounting frame is fixedly installed on the output ends of the two hydraulic cylinders. Four square grooves are provided at the bottom of the base, and adjustment components are provided in the four square grooves. The adjustment components include a screw guide sleeve, and a rotating hole is provided on the top inner wall of the square groove. The screw guide sleeve is rotatably installed in the rotating hole. A rotating unit is provided at the top of the screw guide sleeve, and a screw is installed on the inner thread of the screw guide sleeve. A support plate is rotatably installed on the bottom end of the screw, and a limiting unit is provided on the top of the support plate. Horizontal components are provided on both sides of the base.

[0006] Preferably, the transmission assembly includes two gears and two annular racks, and a rotating rod is installed on the relative inner walls of the base for common rotation. The two gears are fixedly sleeved on the rotating rod, and the two annular racks are respectively fixedly sleeved on the circumferential outer walls of the two concave plates, and the two gears are respectively engaged with the two annular racks.

[0007] Preferably, the rotating unit includes a knob, and the knob is fixedly mounted on the top end of the screw guide sleeve.

[0008] Preferably, the limiting unit includes a telescopic rod, the top end of the telescopic rod is fixedly mounted on the top inner wall of the square groove, and the bottom end of the telescopic rod is fixedly mounted on the top of the support plate.

[0009] Preferably, a non-slip pad is provided at the bottom of the support plate.

[0010] Preferably, the horizontal assembly includes a level ruler, and the level ruler is fixedly mounted on a side of the base.

[0011] Preferably, handles are provided on the tops of the two rectangular plates.

[0012] In summary, the technical effects and advantages of the utility model are:

[0013] 1. In the present invention, when in use, the base is first placed on the anchor rod to be tested, and observed through the horizontal component. When a tilt phenomenon is found, the screw guide sleeve is driven to rotate by rotating the rotating unit, and then the support plate is driven downward under the action of the limit unit and the screw to adjust the horizontality of the base. This arrangement can realize the horizontal adjustment function of the base according to the actual situation. Not only is the adjustment method simple, but it is also convenient to obtain accurate test data.

[0014] 2. In the utility model, the driving motor is started, and one of the concave discs is driven to rotate under the action of the rotating shaft, and then the other concave disc is driven to rotate synchronously under the action of the transmission component, so that the angles of the two hydraulic cylinders and the mounting frame are adjusted under the action of the two arc-shaped tables so that their angles are parallel to the angles of the anchor rods. Then the two hydraulic cylinders are started to drive the V-shaped blocks to move toward the anchor rods and fix the anchor rods. Then the hydraulic cylinders are started to perform pull-out tests, and the experimental data are recorded under the action of the tension sensor. With this arrangement, pull-out tests can be performed on anchor rods and steel bars with different inclinations. Not only is the adjustment method simple, but it is also highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of a concrete anchor pull-out tester in an embodiment of the present application;

[0017] Figure 2 A top view of a concrete anchor pullout tester in an embodiment of the present application;

[0018] Figure 3 This is a schematic diagram of a partial cross-section structure of the base in an embodiment of the present application;

[0019] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle.

[0020] In the figure: 1. Base; 2. Rectangular plate; 3. Rotating shaft; 4. Driving motor; 5. Concave plate; 6. Rotating rod; 7. Gear; 8. Ring rack; 9. Curved table; 10. Hydraulic cylinder; 11. Mounting frame; 12. Screw guide sleeve; 13. Knob; 14. Screw; 15. Support plate; 16. Telescopic rod; 17. Anti-slip pad; 18. Level; 19. Handle. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0022] Example: Reference Figure 1-4 The concrete anchor pull-out tester shown includes a base 1, a mounting frame 11, a connector, a tension sensor, a connecting plate, a stretching portion, a mounting groove, a positioning groove, a V-shaped block, anti-slip teeth, a guide rod, a spring, a fixing plate, and a locking rod. It should be noted that in this embodiment, the installation method of the connector, the tension sensor, the connecting plate, the stretching portion, the mounting groove, the positioning groove, the V-shaped block, the anti-slip teeth, the guide rod, the spring, the fixing plate, and the locking rod can refer to the technical content adopted in a miniature pull-out instrument for a steel bar pull-out detection test disclosed in a Chinese patent with publication number CN218937992U in the prior art. No further details are given here. Two rectangular plates 2 are fixedly installed on the top of the base 1. The opposite sides of the two rectangular plates 2 are rotatably installed with a rotating shaft 3. A driving motor 4 is installed on the side of one of the rectangular plates 2. The driving motor 4 The output shaft is connected to the end of one of the rotating shafts 3, and the ends of the two rotating shafts 3 close to each other are fixedly sleeved with a concave disk 5. The two concave disks 5 are connected by a transmission assembly. The inner walls of the circumferences of the two concave disks 5 are fixedly mounted with an arc-shaped table 9, and the sides of the two arc-shaped tables 9 are fixedly mounted with a hydraulic cylinder 10. The mounting bracket 11 is fixedly mounted on the output ends of the two hydraulic cylinders 10. Four square grooves are provided at the bottom of the base 1, and adjustment components are provided in the four square grooves. The adjustment component includes a screw guide sleeve 12, and a rotating hole is provided on the top inner wall of the square groove. The screw guide sleeve 12 is rotatably installed in the rotating hole. The top of the screw guide sleeve 12 is provided with a rotating unit. The screw guide sleeve 12 has a screw 14 installed in the internal thread of the screw guide sleeve 12. The bottom end of the screw 14 is rotatably mounted with a support plate 15. A limiting unit is provided on the top of the support plate 15, and horizontal components are provided on both sides of the base 1.

[0023] With the above structure, when in use, first place the base 1 on the anchor rod to be tested and observe it through the horizontal component. When tilt is found, the screw guide sleeve 12 is driven to rotate by rotating the rotating unit, and then the support plate 15 is driven downward under the action of the limit unit and the screw 14 to adjust the horizontality of the base 1. This setting can realize the horizontal adjustment function of the base 1 according to the actual situation. Not only is the adjustment method simple, but it is also convenient to obtain accurate test data. Start the drive motor 4, and drive one of the concave discs 5 to rotate under the action of the rotating shaft 3, and then drive the other concave disc 5 to rotate synchronously under the action of the transmission component, so that the angles of the two hydraulic cylinders 10 and the mounting frame 11 are adjusted under the action of the two arc-shaped tables 9, so that their angles are parallel to the angles of the anchor rods, and then start the two hydraulic cylinders 10 to drive the V-shaped blocks to move toward the direction of the anchor rods and fix the anchor rods, and then start the hydraulic cylinders 10 to perform a pull-out test, and record the experimental data under the action of the tension sensor. This setting can perform pull-out tests on anchor rods and steel bars with different inclinations. Not only is the adjustment method simple, but it is also highly practical.

[0024] like Figure 4 As shown, the transmission assembly includes two gears 7 and two annular racks 8. The relative inner walls of the base 1 are installed with a rotating rod 6 for common rotation. The two gears 7 are fixedly sleeved on the rotating rod 6. The two annular racks 8 are respectively fixedly sleeved on the outer walls of the circumference of the two concave plates 5. The two gears 7 are respectively engaged with the two annular racks 8. The advantage of this arrangement is that the two concave plates 5 can be driven to rotate synchronously by the arrangement of the two gears 7 and the two annular racks 8, thereby preventing the concave plates on both sides from rotating at an asynchronous angle, which may cause jamming during rotation.

[0025] like Figure 4 As shown, the rotation unit includes a knob 13, which is fixedly mounted on the top of the screw guide sleeve 12. The advantage of this arrangement is that, through the arrangement of the knob 13, when the staff needs to rotate the screw guide sleeve 12, they only need to rotate the knob 13 to achieve the purpose, which is convenient to operate.

[0026] like Figure 4 As shown, the limiting unit includes a telescopic rod 16, the top end of the telescopic rod 16 is fixedly mounted on the top inner wall of the square groove, and the bottom end of the telescopic rod 16 is fixedly mounted on the top of the support plate 15. The advantage of this arrangement is that through the arrangement of the telescopic rod 16, the limiting function of the support plate 15 can be achieved to prevent the support plate 15 from rotating as the screw 14 rotates.

[0027] like Figure 4 As shown, an anti-skid pad 17 is provided at the bottom of the support plate 15. The advantage of such a setting is that the anti-skid pad 17 can play a certain anti-skid role when the support plate 15 is supported.

[0028] like Figure 1 As shown, the horizontal component includes a level ruler 18, which is fixedly installed on the side of the base 1. The advantage of this arrangement is that the level ruler 18 allows the staff to directly observe the horizontality of the base 1 and can also observe it at all times during the adjustment process, which is highly practical.

[0029] like Figure 2 As shown, handles 19 are provided on the tops of the two rectangular plates 2. The advantage of such a setting is that the setting of the two handles 19 can make it more convenient for the staff to carry the tester.

[0030] The working principle of this utility model is as follows: first, the base 1 is placed on the anchor rod to be tested, and the two level rulers 18 are observed. When a tilt phenomenon is found, the screw guide sleeve 12 is rotated by turning the knob 13, and then the support plate 15 is driven downward by the action of the telescopic rod 16 and the screw 14 to adjust the levelness of the base 1. With this arrangement, the height of the four sides of the base 1 can be adjusted according to the actual situation, and the two level rulers 18 can be used to realize the level adjustment function of the base 1. Not only is the adjustment method simple, but it is also convenient to obtain accurate test data. Start the drive motor 4, and drive one of the concave plates 5 to rotate under the action of the rotating shaft 3, and then drive the other concave plate 5 to rotate synchronously under the meshing action of the two annular racks 8 and the two gears 7, so that the angles of the two hydraulic cylinders 10 and the mounting frame 11 are adjusted under the action of the two arc-shaped tables 9, so that their angles are parallel to the angles of the anchor rods, and then start the two hydraulic cylinders 10 to drive the V-shaped blocks to move toward the direction of the anchor rods and fix the anchor rods, and then start the hydraulic cylinders 10 to perform a pull-out test, and record the experimental data under the action of the tension sensor. With this arrangement, pull-out tests can be performed on anchor rods and steel bars with different inclinations. Not only is the adjustment method simple, but it is also highly practical.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A concrete anchor pullout tester, comprising a base (1), a mounting frame (11), a connector, a tension sensor, a connecting plate, a tensile portion, a mounting groove, a positioning groove, a V-shaped block, anti-slip teeth, a guide rod, a spring, a fixing plate, and a locking rod, characterized in that: Two rectangular plates (2) are fixedly mounted on the top of the base (1), and rotating shafts (3) are rotatably mounted on the opposite sides of the two rectangular plates (2). A driving motor (4) is mounted on the side of one of the rectangular plates (2), and the output shaft of the driving motor (4) is connected to the end of one of the rotating shafts (3). The ends of the two rotating shafts (3) close to each other are fixedly sleeved with concave discs (5), and the two concave discs (5) are connected through a transmission assembly. The inner walls of the circumferences of the two concave discs (5) are fixedly mounted with arc-shaped platforms (9), and the sides of the two arc-shaped platforms (9) are fixedly mounted with hydraulic cylinders (10). The mounting frame (11 ) is fixedly mounted on the output ends of the two hydraulic cylinders (10), four square grooves are provided at the bottom of the base (1), and adjustment components are provided in the four square grooves. The adjustment components include a screw guide sleeve (12), a rotating hole is provided on the top inner wall of the square groove, and the screw guide sleeve (12) is rotatably mounted in the rotating hole. A rotating unit is provided at the top of the screw guide sleeve (12), a screw (14) is installed on the internal thread of the screw guide sleeve (12), and a support plate (15) is rotatably installed at the bottom end of the screw (14), and a limiting unit is provided on the top of the support plate (15). Both sides of the base (1) are provided with horizontal components.

2. A concrete anchor pull-out tester according to claim 1, characterized in that: The transmission assembly comprises two gears (7) and two annular racks (8). A rotating rod (6) is mounted on the relative inner walls of the base (1) for common rotation. The two gears (7) are fixedly sleeved on the rotating rod (6). The two annular racks (8) are respectively fixedly sleeved on the circumferential outer walls of the two concave plates (5). The two gears (7) are respectively meshed with the two annular racks (8).

3. A concrete anchor pull-out tester according to claim 1, characterized in that: The rotating unit comprises a knob (13), and the knob (13) is fixedly mounted on the top end of the screw guide sleeve (12).

4. A concrete anchor pull-out tester according to claim 1, characterized in that: The limiting unit comprises a telescopic rod (16), the top end of the telescopic rod (16) is fixedly mounted on the top inner wall of the square groove, and the bottom end of the telescopic rod (16) is fixedly mounted on the top of the support plate (15).

5. The concrete anchor pull-out tester according to claim 1, characterized in that: An anti-slip pad (17) is provided at the bottom of the support plate (15).

6. A concrete anchor pull-out tester according to claim 1, characterized in that: The horizontal assembly comprises a level ruler (18), and the level ruler (18) is fixedly mounted on the side of the base (1).

7. The concrete anchor pull-out tester according to claim 1, characterized in that: The tops of the two rectangular plates (2) are both provided with handles (19).

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