Automatic anchor rod drawing instrument

Abstract

The utility model provides an automatic anchor rod drawing instrument which comprises a gasket, a hydraulic cylinder, an oil pipe, a manual pump, a digital display pressure gauge installed on the manual pump and an adjustable anchorage device. The anchor rod is sleeved with the gasket, the anchor rod is sleeved with the hydraulic cylinder, the hydraulic cylinder is pressed on the gasket, and the manual pump is connected with the hydraulic cylinder through an oil pipe. The adjustable anchorage device is mounted on a mounting block arranged at the top of the hydraulic cylinder lifting rod and comprises three anchor blocks which are circumferentially distributed and mounted on the mounting block; the anchor block is radially and slidably mounted on the mounting block, uniformly arranged clamping blocks are mounted between the anchor block and the anchor rod, and the outer side surface of each clamping block is an arc-shaped surface which is in press fit with the inner side surface of the anchor block and of which the upper end inclines outwards. According to the utility model, the anchorage device can be mounted on the anchor rod in the process of sleeving the hydraulic cylinder on the anchor rod, and the anchorage device does not need to be mounted independently, so that the mounting efficiency of the drawing instrument is improved; and the size of the inner diameter of the adjustable anchorage device can be adjusted according to the size of the diameter of the anchor rod.

Description

Technical Field

[0001] The utility model relates to the field of engineering technology equipment, in particular to an automatic anchor rod pulling instrument. Background Art

[0002] The automatic anchor puller is a kind of on-site testing instrument that is necessary for quality inspection units. It is mainly used to detect the anchoring force of various anchors 7, steel bars and other anchor bodies. It consists of a manual pump 4, a hydraulic cylinder 2, an intelligent digital pressure gauge 5, a high-pressure oil pipe 3 with a quick connector, an anchor and a portable case. The hydraulic cylinder 2 is a hollow self-reset type, and the intelligent digital pressure gauge can directly read the tension value (kN) of the anchor 7, and has peak holding, storage and query functions. It is particularly suitable for on-site use, simple to operate, easy to learn and use. When the current automatic anchor puller 7 is installed on the anchor 7, the hydraulic cylinder 2 is first installed on the anchor 7, and then the anchor is fixed on the anchor 7 with an anchor. The anchor and the hydraulic cylinder 2 cannot be installed on the anchor 7 at the same time, which is inconvenient to operate, and anchors of different diameters need to be replaced with anchors of different diameters, thereby reducing the installation efficiency of the puller. Utility Model Content

[0003] In order to overcome the problems existing in the background technology, the utility model provides an automatic anchor puller to solve the technical problems proposed in the background technology that the existing puller cannot install the hydraulic cylinder and the anchor on the anchor at the same time, and the anchor cannot adjust the diameter according to the thickness of the anchor.

[0004] To achieve the above purpose, the utility model is implemented through the following technical solutions:

[0005] An automatic anchor puller comprises a gasket 1, a hydraulic cylinder 2, an oil pipe 3, a manual pump 4, a digital pressure gauge 5 mounted on the manual pump 4, and an adjustable anchor 6; the gasket 1 is sleeved on the anchor 7, the hydraulic cylinder 2 is sleeved on the anchor 7 and pressed on the gasket 1, and the manual pump 4 is connected to the hydraulic cylinder 2 through the oil pipe 3; the adjustable anchor 6 is mounted on a mounting block 8 provided at the top of the lifting rod of the hydraulic cylinder 2, and the adjustable anchor 6 comprises three anchor blocks 9 which are circumferentially distributed and mounted on the mounting block 8; the anchor block 9 is radially slidably mounted on the mounting block 8, and the inner side surface of the anchor block 9 is an arcuate surface with the upper end inclined outward; uniformly arranged clamping blocks 10 are installed between the anchor block 9 and the anchor 7, and the outer side surface of the clamping block 10 is an arcuate surface with the upper end inclined outward which is pressed against the inner side surface of the anchor block 9.

[0006] Preferably, the slider 11 fixedly arranged at the bottom of the anchor block 9 is slidably installed in the slide groove 12 radially arranged at the top of the mounting block 8, and a screw rod 13 is rotatably installed in the slide groove 12, and the screw rod 13 is threadedly connected to the slider 11.

[0007] Preferably, a knob 14 is provided at the end of the screw rod 13 for facilitating the rotation of the screw rod 13 .

[0008] Preferably, the inner side surface of the clamping block 10 is provided with anti-slip grooves 15 .

[0009] The beneficial effects of the utility model are as follows: the utility model can install the adjustable anchor on the hydraulic cylinder, so the anchor can be installed on the anchor rod during the process of setting the hydraulic cylinder sleeve on the anchor rod, and there is no need to install the anchor separately, thereby improving the installation efficiency of the pulling instrument; and the adjustable anchor can adjust the size of the inner diameter of the anchor according to the diameter of the anchor rod, so that it can adapt to anchor rods of various diameters, and there is no need to replace the anchor according to the size of the anchor rod, which further improves the installation efficiency and work efficiency of the pulling instrument. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0011] Figure 2 yes Figure 1 A partial enlarged view of area A shown in FIG.

[0012] Figure 3 is an exploded view of the adjustable anchor.

[0013] Figure 4 Schematic diagram of the structure of the anchor block.

[0014] Figure 5 Schematic diagram of the structure of the clamping block. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings to facilitate the understanding of technicians.

[0016] like Figure 1-5As shown, the utility model provides an automatic anchor puller, comprising a gasket 1, a hydraulic cylinder 2, an oil pipe 3, a manual pump 4, a digital pressure gauge 5 installed on the manual pump 4, and an adjustable anchor 6; the gasket 1 is sleeved on the anchor 7, the hydraulic cylinder 2 is sleeved on the anchor 7 and pressed on the gasket 1, and the manual pump 4 is connected to the hydraulic cylinder 2 through the oil pipe 3; the adjustable anchor 6 is installed on a mounting block 8 set on the top of the lifting rod of the hydraulic cylinder 2, and the adjustable anchor 6 includes three anchor blocks 9 installed on the mounting block 8 in a circumferentially distributed manner; the anchor block 9 is radially slidably installed on the mounting block 8, and the inner side surface of the anchor block 9 is an arc-shaped surface with an upper end inclined outward; uniformly arranged clamping blocks 10 are installed between the anchor block 9 and the anchor 7, and the outer side surface of the clamping block 10 is an arc-shaped surface with an upper end inclined outward that is pressed with the inner side surface of the anchor block 9. When the pulling instrument is in use, the gasket 1 is first sleeved on the anchor rod 7 planted on the ground 0, and the hydraulic cylinder 2 is sleeved on the anchor rod 7. The gasket 1 supports the hydraulic cylinder 2, and then the clamping block 10 is evenly inserted between the adjustable anchor 6 and the anchor rod 7. The clamping block 10 and the anchor are staggered, and the radial sliding anchor block 9 makes the anchor block 9 press the clamping block 10 on the anchor rod 7, and then the manual pump 4 is pressed to make the lifting rod of the hydraulic cylinder 2 drive the mounting block 8 to apply pressure to the anchor. Since the inner side of the anchor block 9 and the pressing surface of the clamping block 10 are inclined surfaces, the anchor block 9 applies axial force to the clamping block 10 while applying inward radial force, so that the clamping block 10 is clamped on the anchor rod 7 to prevent slipping; then the manual pump 4 is continuously pressed to make the hydraulic cylinder 2 apply continuous pulling force to the anchor rod 7, and then the peak value of the digital pressure gauge 5 is checked, which is the maximum pulling force that the anchor rod 7 can withstand. The utility model is provided with an adjustable anchor 6 installed on the hydraulic cylinder 2, so that the anchor can be installed on the anchor rod 7 during the process of sleeve-mounting the hydraulic cylinder 2 on the anchor rod 7, and there is no need to install the anchor separately, thereby improving the installation efficiency of the puller; and the adjustable anchor 6 can adjust the size of the inner diameter of the anchor according to the diameter of the anchor rod 7, so that it can adapt to anchor rods 7 of various diameters, and there is no need to replace the anchor according to the size of the anchor rod 7, which further improves the installation efficiency and working efficiency of the puller.

[0017] The slider 11 fixedly arranged at the bottom of the anchor block 9 is slidably installed in the slide groove 12 radially arranged at the top of the mounting block 8, and a screw rod 13 is rotatably installed in the slide groove 12, and the screw rod 13 is threadedly connected with the slider 11. After the hydraulic cylinder 2 is sleeved on the anchor rod 7, the clamping block 10 is inserted between the anchor block 9 and the anchor rod 7, and then by rotating the screw rod 13, the screw rod 13 and the slider 11 are relatively rotated through the thread, so that the anchor block 9 slides inward along the slide groove 12, pushing the clamping block 10 to press on the anchor rod 7, and the screw rod 13 can be used to conveniently and efficiently move the anchor block 9 to press the clamping block 10, and the inner diameter of the anchor can be adjusted according to the thickness of the anchor rod 7, and various thicknesses of anchor rods 7 can be clamped, thereby improving the practicality of the pulling instrument.

[0018] The end of the screw rod 13 is provided with a knob 14 for facilitating the rotation of the screw rod 13. The screw rod 13 can be conveniently and labor-savingly rotated by the knob 14, thereby improving the working efficiency of the pulling instrument.

[0019] The inner side of the clamp block 10 is provided with anti-skid patterns 15. The anti-skid patterns 15 can increase the friction between the clamp block 10 and the anchor rod 7 to prevent slipping.

[0020] Working process:

[0021] When the puller is in use, the gasket 1 is first sleeved on the anchor rod 7, and then the hydraulic cylinder 2 is sleeved on the anchor rod 7, the gasket 1 supports the hydraulic cylinder 2, and then the clamping block 10 is evenly inserted between the adjustable anchor 6 and the anchor rod 7, the clamping block 10 and the anchor are staggered, and then the screw rod 13 is rotated, and the screw rod 13 and the slider 11 are rotated relative to each other through the thread, so that the anchor block 9 slides inward along the slide groove 12, pushing the clamping block 10 to be pressed against the anchor rod 7, and then the manual pump 4 is pressed to make the lifting rod of the hydraulic cylinder 2 drive the mounting block 8 to apply pressure to the anchor, because the inner side of the anchor block 9 and the pressing surface of the clamping block 10 are inclined surfaces, the anchor block 9 applies axial force to the clamping block 10 while applying inward radial force, so that the clamping block 10 is clamped on the anchor rod 7 to prevent slipping; then the manual pump 4 is continuously pressed to make the hydraulic cylinder 2 apply continuous pulling force to the anchor rod 7, and then the peak value of the digital pressure gauge 5 is checked, which is the maximum pulling force that the anchor rod 7 can withstand.

[0022] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the utility model.

Claims

1. An automatic anchor bolt pulling instrument, characterized in that: The invention comprises a gasket (1), a hydraulic cylinder (2), an oil pipe (3), a manual pump (4), a digital pressure gauge (5) mounted on the manual pump (4), and an adjustable anchor (6); the gasket (1) is sleeved on the anchor rod (7), the hydraulic cylinder (2) is sleeved on the anchor rod (7) and pressed on the gasket (1), and the manual pump (4) is connected to the hydraulic cylinder (2) through the oil pipe (3); the adjustable anchor (6) is mounted on a mounting block (8) arranged at the top of the lifting rod of the hydraulic cylinder (2), and the adjustable anchor (6) comprises three anchor blocks (9) which are circumferentially distributed and mounted on the mounting block (8); the anchor blocks (9) are radially slidably mounted on the mounting block (8), and the inner side surface of the anchor blocks (9) is an arcuate surface with an upper end inclined outward; uniformly arranged clamping blocks (10) are mounted between the anchor blocks (9) and the anchor rod (7), and the outer side surface of the clamping blocks (10) is an arcuate surface with an upper end inclined outward and pressed against the inner side surface of the anchor blocks (9).

2. The automatic anchor bolt pulling instrument according to claim 1, characterized in that: A slider (11) fixedly arranged at the bottom of the anchor block (9) is slidably mounted in a slide groove (12) radially arranged at the top of the mounting block (8), a screw rod (13) is rotatably mounted in the slide groove (12), and the screw rod (13) is threadedly connected to the slider (11).

3. The automatic anchor bolt pulling instrument according to claim 2, characterized in that: The end of the screw rod (13) is provided with a knob (14) for facilitating the rotation of the screw rod (13).

4. An automatic anchor bolt pulling instrument according to claim 1 or 2, characterized in that: The inner side surface of the clamping block (10) is provided with anti-slip grooves (15).

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