Anchor rod anti-drawing force detection device

Abstract

The utility model discloses an anchor rod anti-drawing force detection device, which relates to the technical field of drawing force detection and comprises a bottom plate and a connecting plate, an anchor rod is arranged in the bottom plate, a motor is arranged at the lower end of the connecting plate, an output shaft of the motor is fixedly connected with a double-end screw rod, the outer surface of the double-end screw rod is symmetrically connected with sliding blocks in a threaded manner, and the sliding blocks are connected with the connecting plate in a threaded manner. A second elastic plate is slidably connected to the side face of the sliding block, a straight plate is arranged at the rear end of the second elastic plate, and a first elastic plate is arranged at the front end of the second elastic plate; the problems that in the prior art, an existing anchor rod anti-drawing force detection device has certain limitation on the size, the shape and the material of an anchor rod and cannot be suitable for all types of anchor rods, and the application range of the existing anchor rod anti-drawing force detection device in actual engineering is limited are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of pull-out force detection, in particular to an anchor rod pull-out force detection device. Background Art

[0002] Anchor pull-out force testing device is a device used to test the pull-out resistance of anchors under tension. Anchors are usually used in underground engineering, geotechnical engineering and construction engineering to fix and reinforce soil or concrete structures. Anchor pull-out force testing device can evaluate the pull-out resistance of anchors by applying tension and measuring the deformation and stress of anchors.

[0003] The existing anchor tensile force detection device has certain restrictions on the size, shape and material of the anchor and cannot be applied to all types of anchors, which limits its application scope in actual engineering. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes an anchor pull-out force detection device, which solves the problem that the existing anchor pull-out force detection device in the prior art has certain limitations on the size, shape and material of the anchor and cannot be applied to all types of anchors, which limits its application scope in actual engineering.

[0005] To achieve the above-mentioned purpose, the utility model proposes an anchor rod tensile pull-out force detection device, comprising: a base plate, a connecting plate, an anchor rod is arranged inside the base plate, a motor is arranged at the lower end of the connecting plate, the output shaft of the motor is fixedly connected to a double-headed screw, the outer surface of the double-headed screw is symmetrically threaded with a slider, the side of the slider is slidably connected to a second elastic plate, the rear end of the second elastic plate is provided with a straight plate, the front end of the second elastic plate is provided with a first elastic plate, and the internal thread of the straight plate is connected to a screw.

[0006] As a further solution of the utility model: the lower end of the connecting plate and the positions on both sides are fixedly connected with connecting plates, the side surface of one of the connecting plates is fixedly connected to the motor, and the outer surface of the double-headed screw rod is provided with threads of opposite rotation directions at both ends.

[0007] As a further solution of the utility model: a slide groove is opened on the side of the slider near the lower end, the second elastic plate is slidably connected in the slide groove, the side of the straight plate is fixedly connected to the slider, and the side of the first elastic plate is fixedly connected to the slider.

[0008] As a further solution of the utility model: the bottom end of the screw rod contacts the rear end surface of the second elastic plate.

[0009] As a further solution of the utility model: the upper end of the bottom plate and the positions on both sides are fixedly connected with side plates, the upper ends of the side plates are fixedly connected with top plates, and the anchor rods extend to the outside of the bottom plate.

[0010] As a further solution of the utility model: a cylinder is fixedly provided at the lower end and in the middle of the top plate, a force meter is fixedly connected to the output end of the cylinder, the force measuring end of the force meter is fixedly connected to the connecting plate, the lower end of the top plate and positions on both sides are symmetrically fixedly connected to the second fixing rod, the inside of the second fixing rod is slidably connected to the first fixing rod, and the lower end of the first fixing rod is fixedly connected to the upper end surface of the connecting plate.

[0011] As a further solution of the utility model: the end surfaces of the second elastic plate and the first elastic plate close to each other are both provided with fixing grooves, and a spring is fixedly connected between the second elastic plate and the first elastic plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] By setting the first elastic plate, the slider and the second elastic plate, the rotation direction of the motor is controlled so that the two sliders are close to each other. When the slider contacts the anchor rod, the length of different types of anchor rods is adapted, the rotation of the motor is stopped, and the screw rod is rotated to move the second elastic plate toward the anchor rod. The spring is compressed, and the second elastic plate and the first elastic plate are deformed by the end face of the anchor rod until the screw rod becomes difficult to continue rotating, adapting to the width of different types of anchor rods, and the screw rod is stopped, at which time the anchor rod is fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a top view of the first elastic plate of the utility model.

[0016] In the figure: 1, bottom plate; 2, anchor rod; 3, side plate; 4, connecting plate; 5, motor; 6, first fixed rod; 7, second fixed rod; 8, top plate; 9, cylinder; 10, dynamometer; 11, connecting plate; 12, double-headed screw; 13, slider; 14, first elastic plate; 15, spring; 16, second elastic plate; 17, screw; 18, straight plate. DETAILED DESCRIPTION

[0017] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] like Figure 1-2 As shown, the anchor rod tensile pullout force detection device comprises: a bottom plate 1, the upper end of the bottom plate 1 and the positions on both sides are fixedly connected to the side plates 3, and the upper ends of the side plates 3 are fixedly connected to the top plate 8.

[0019] An anchor rod 2 is disposed inside the bottom plate 1 , and the anchor rod 2 extends to the outside of the bottom plate 1 .

[0020] A cylinder 9 is fixedly provided at the lower end and in the middle of the top plate 8 , a force measuring device 10 is fixedly connected to the output end of the cylinder 9 , and a connecting plate 11 is fixedly connected to the force measuring end of the force measuring device 10 .

[0021] The lower end of the top plate 8 and the positions on both sides are symmetrically fixedly connected with the second fixing rod 7, the interior of the second fixing rod 7 is slidably connected with the first fixing rod 6, and the lower end of the first fixing rod 6 is fixedly connected to the upper end surface of the connecting plate 11.

[0022] The cylinder 9 is started, and the output end of the cylinder 9 drives the connecting plate 11 to move up and down in the vertical direction. The first fixing rod 6 slides inside the second fixing rod 7 to prevent the connecting plate 11 from deviating from the direction during the movement.

[0023] The lower end of the connecting plate 11 and the positions on both sides are fixedly connected with connecting plates 4, and the side surface of one of the connecting plates 4 is fixedly connected with a motor 5, and the output shaft of the motor 5 is fixedly connected with a double-headed screw rod 12, and the two ends of the outer surface of the double-headed screw rod 12 are respectively provided with threads of opposite rotation directions, and the outer surface of the double-headed screw rod 12 is symmetrically threaded with a slider 13.

[0024] A slide groove is provided on the side of the slider 13 near the lower end, and a second elastic plate 16 is slidably connected in the slide groove. A straight plate 18 is provided at the rear end of the second elastic plate 16, and the side of the straight plate 18 is fixedly connected to the slider 13. A first elastic plate 14 is provided at the front end of the second elastic plate 16, and the side of the first elastic plate 14 is fixedly connected to the slider 13.

[0025] The motor 5 is started, and the output shaft of the motor 5 drives the double-headed screw 12 to rotate, so that the two sliders 13 are moved closer to each other or away from each other.

[0026] The end surfaces of the second elastic plate 16 and the first elastic plate 14 that are close to each other are both provided with fixing grooves, and a spring 15 is fixedly connected between the second elastic plate 16 and the first elastic plate 14 .

[0027] The inner thread of the straight plate 18 is connected with a screw rod 17 , and the bottom end of the screw rod 17 contacts the rear end surface of the second elastic plate 16 .

[0028] Control the rotation direction of the motor 5 so that the two sliders 13 approach each other. When the slider 13 contacts the anchor rod 2, stop the rotation of the motor 5 and rotate the screw 17 to move the second elastic plate 16 toward the direction of the anchor rod 2. The spring 15 is compressed, and the second elastic plate 16 and the first elastic plate 14 are deformed by the end surface of the anchor rod 2 until it becomes difficult for the screw 17 to continue rotating. Stop rotating the screw 17, and the anchor rod 2 is fixed.

[0029] When the cylinder 9 is started, the connecting plate 11 drives the slider 13 and the anchor rod 2 to move vertically upward, thereby resisting pulling. The pulling force can be detected by the force measuring device 10.

[0030] Working principle:

[0031] Control the rotation direction of the motor 5 so that the two sliders 13 approach each other. When the slider 13 contacts the anchor rod 2, stop the rotation of the motor 5 and rotate the screw 17 to move the second elastic plate 16 toward the direction of the anchor rod 2. The spring 15 is compressed, and the second elastic plate 16 and the first elastic plate 14 are deformed by the end surface of the anchor rod 2 until it becomes difficult for the screw 17 to continue rotating. Stop rotating the screw 17, and the anchor rod 2 is fixed.

[0032] The above embodiments are only used to illustrate the technical method of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical method of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the utility model.

Claims

1. Anchor bolt tensile force detection device, characterized in that: include: A base plate (1) and a connecting plate (11), wherein an anchor rod (2) is arranged inside the base plate (1), a motor (5) is arranged at the lower end of the connecting plate (11), an output shaft of the motor (5) is fixedly connected to a double-headed screw (12), an outer surface of the double-headed screw (12) is symmetrically threadedly connected to a slider (13), a side surface of the slider (13) is slidably connected to a second elastic plate (16), a straight plate (18) is arranged at the rear end of the second elastic plate (16), a first elastic plate (14) is arranged at the front end of the second elastic plate (16), and a screw rod (17) is threadedly connected to the inside of the straight plate (18).

2. The anchor rod tensile force detection device according to claim 1, characterized in that: The lower end of the connecting plate (11) and the positions on both sides are fixedly connected to connecting plates (4), and the side surface of one of the connecting plates (4) is fixedly connected to the motor (5). The outer surfaces of the double-ended screw rod (12) are respectively provided with threads of opposite rotation directions at both ends.

3. The anchor rod tensile force detection device according to claim 1, characterized in that: A slide groove is provided on the side of the slider (13) near the lower end, and a second elastic plate (16) is slidably connected in the slide groove. The side of the straight plate (18) is fixedly connected to the slider (13), and the side of the first elastic plate (14) is fixedly connected to the slider (13).

4. The anchor rod tensile force detection device according to claim 1, characterized in that: The bottom end of the screw rod (17) contacts the rear end surface of the second elastic plate (16).

5. The anchor rod tensile force detection device according to claim 1, characterized in that: The upper end of the bottom plate (1) and positions on both sides are fixedly connected to side plates (3), the upper ends of the side plates (3) are fixedly connected to top plates (8), and the anchor rods (2) extend to the outside of the bottom plate (1).

6. The anchor rod tensile force detection device according to claim 5, characterized in that: A cylinder (9) is fixedly arranged at the lower end and in the middle of the top plate (8); a force measuring device (10) is fixedly connected to the output end of the cylinder (9); the force measuring end of the force measuring device (10) is fixedly connected to the connecting plate (11); a second fixing rod (7) is symmetrically fixedly connected to the lower end and on both sides of the top plate (8); a first fixing rod (6) is slidably connected inside the second fixing rod (7); and the lower end of the first fixing rod (6) is fixedly connected to the upper end surface of the connecting plate (11).

7. The anchor rod tensile force detection device according to claim 1, characterized in that: The end surfaces of the second elastic plate (16) and the first elastic plate (14) that are close to each other are both provided with fixing grooves, and a spring (15) is fixedly connected between the second elastic plate (16) and the first elastic plate (14).

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