Anchor rod cable anchor prestress nondestructive test device

Abstract

The utility model relates to the technical field of stress detection test devices, in particular to an anchor rod cable anchor prestress nondestructive test device, which adopts the technical scheme that the anchor rod cable anchor prestress nondestructive test device comprises a bottom shell, a protective cover and an X-ray sensor, a supporting seat is fixedly mounted at the bottom of the bottom shell, and a square sealing ring is fixedly mounted at the top of the bottom shell; two non-slip mats are fixedly mounted at the positions, close to the front face, of the top of the sealing ring, and mounting grooves are formed in the bottom shell and the supporting seat; and an objective table is movably mounted in the mounting groove. According to the utility model, the first salient points and the second salient points are arranged on the surface of the objective table, so that the surface of the objective table can present frosted textures by utilizing the first salient points and the second salient points, and therefore, compared with a traditional plane or mirror surface, the reflection of X-rays on the surface of the objective table can be greatly inhibited, and the X-ray imaging quality can be improved. And a clear imaging background is provided for the anchor rod cable anchor at the top of the objective table, so that the stress of the anchor rod cable anchor can be accurately detected.

Description

Technical Field

[0001] This utility model relates to the technical field of stress testing devices, specifically a non-destructive testing device for anchor bolt and cable anchor prestress. Background Technology

[0002] In the construction of major infrastructure projects such as traffic tunnels, slope treatment, deep foundation pit engineering, and mine roadway support, anchor cables are core support components, and their prestress state directly determines the stability of the support system and the overall safety of the project. Among them, X-ray non-destructive stress testing technology has been maturely applied in the stress analysis of metal components due to its high detection accuracy, wide compatibility with materials, and ability to conduct on-site in-situ testing, providing reliable technical support for anchor cable prestress testing. Therefore, we propose an anchor cable prestress non-destructive testing device.

[0003] In existing non-destructive testing devices for anchor bolts and cable anchors, stress detection is based on X-rays. However, due to the reflection of X-rays in a closed environment, the scattered reflected light rays can affect the final test results. Traditional non-destructive testing devices do not have a structure to suppress reflected light rays, which can always cause deviations in the test results due to the presence of reflected light rays.

[0004] In view of this, we propose a non-destructive testing device for anchor bolt and cable anchor prestress to solve the existing problems. Utility Model Content

[0005] The purpose of this invention is to provide a non-destructive testing device for anchor bolt and cable anchor prestress to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a non-destructive testing device for anchor bolt cable anchor prestress, comprising a bottom shell, a protective cover and an X-ray sensor, wherein a support base is fixedly installed at the bottom of the bottom shell, and a U-shaped sealing ring is fixedly installed at the top of the bottom shell, and two anti-slip pads are fixedly installed at the top of the sealing ring near the front position, and mounting grooves are provided inside the bottom shell and the support base.

[0007] A platform is movably installed inside the mounting slot. Two telescopic rods are fixedly installed at the bottom of the platform, and the bottom of the telescopic rods is fixedly connected to the support base.

[0008] A protective cover is mounted on the top of the bottom shell via a hinge. The top of the protective cover has an opening for installation. The protective cover is made of light-shielding material. A handle is fixedly mounted on one side of the front of the protective cover.

[0009] An X-ray sensor is fixedly installed on the top of the protective cover.

[0010] Preferably, foot pads are fixedly installed on both sides of the bottom of the support base, and sealant is applied to the connection between the support base and the bottom shell.

[0011] Preferably, the top surface of the stage is provided with a set of first protrusions and a set of second protrusions, both of which are quadrangular pyramid structures, and the first and second protrusions are arranged alternately.

[0012] Preferably, a vacuum pump is fixedly installed on one side of the protective cover, and the vacuum pump's suction pipe is connected to the interior of the protective cover.

[0013] Preferably, a control panel is fixedly installed on one side of the top of the X-ray sensor. The control panel is electrically connected to the X-ray sensor via a cable, and the X-ray sensor is connected to an external power source via the cable.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model, by providing a first protrusion and a second protrusion on the surface of the stage, can make the surface of the stage present a frosted texture. Compared with the traditional flat or mirror surface, it can greatly suppress the reflection of X-rays on the surface of the stage, thereby providing a clear imaging background for the anchor bolts and cables at the top of the stage, which helps to accurately detect the stress of the anchor bolts and cables.

[0016] 2. This utility model provides a first protrusion and a second protrusion on the surface of the platform, with the heights of the first protrusion and the second protrusion being different. This, in turn, provides multiple grooves on the top of the platform, which can provide a certain degree of friction for the anchor rods and cables on the top of the platform, thereby improving the stability of the anchor rods and cables on the top of the platform and avoiding irregular movement during the test, which could lead to deviations in the test data. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a front structural diagram of the present invention;

[0019] Figure 3 This is a partial three-dimensional structural schematic diagram of the present invention;

[0020] Figure 4 This is a partial three-dimensional cross-sectional structural diagram of the present invention;

[0021] Figure 5 for Figure 4 A magnified schematic diagram of the structure at point A in the middle.

[0022] In the diagram: 1. Bottom shell; 101. Sealing ring; 102. Support base; 103. Anti-slip pad; 2. Protective cover; 201. Vacuum pump; 202. Handle; 3. X-ray sensor; 301. Control panel; 4. Stage; 401. Telescopic rod; 402. First protrusion; 403. Second protrusion. Detailed Implementation

[0023] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] like Figure 1 - Figure 5 As shown, the present invention proposes a non-destructive testing device for anchor bolt cable prestress, comprising a bottom shell 1, a protective cover 2, and an X-ray sensor 3. A support base 102 is fixedly installed at the bottom of the bottom shell 1, and a U-shaped sealing ring 101 is fixedly installed at the top of the bottom shell 1. Two anti-slip pads 103 are fixedly installed at the top of the sealing ring 101 near the front. The bottom shell 1 and the support base 102 have mounting grooves inside, and the bottom shell 1 and the support base 102 can form a box-shaped structure, thereby providing a mounting position for the internal components and protecting the stage 4, so that the stage 4 maintains stability when it is raised and lowered longitudinally. In conjunction with the protective cover 2, it forms a closed space, which is conducive to the accurate detection of X-ray stress. The sealing ring 101 can improve the sealing at the connection between the bottom shell 1 and the protective cover 2, which is conducive to the vacuuming treatment of the interior of the protective cover 2 and the bottom shell 1 by using a vacuum pump 201.

[0025] The mounting slot contains a movable platform 4. Two telescopic rods 401 are fixedly installed at the bottom of the platform 4, and the bottom of the telescopic rods 401 is fixedly connected to the support base 102. The platform 4 can provide a position for the anchor bolts and cables, so as to facilitate the non-destructive testing of the anchor bolts and cables on the top of the platform 4 using X-rays. The telescopic rods 401 can extend and retract longitudinally, thereby driving the platform 4 to move longitudinally, so as to drive the anchor bolts and cables on the top of the platform 4 to move longitudinally.

[0026] A protective cover 2 is installed on the top of the bottom shell 1 via a hinge. The top of the protective cover 2 has an installation opening, and the protective cover 2 is made of light-shielding material. A handle 202 is fixedly installed on one side of the front of the protective cover 2. The protective cover 2 can cooperate with the bottom shell 1 and the support base 102 to form a closed environment, which facilitates the use of X-rays to conduct non-destructive tests on the anchor bolts and cables in a closed and dark environment.

[0027] An X-ray sensor 3 is fixedly installed on the top of the protective cover 2. The X-ray sensor 3 can emit X-rays uniformly. By observing the reflection of X-rays inside the anchor bolt, the changes and forms of stress in the anchor bolt can be determined, thereby achieving non-destructive testing of the anchor bolt.

[0028] Furthermore, foot pads are fixedly installed on both sides of the bottom of the support base 102, and sealant is applied to the connection between the support base 102 and the bottom shell 1. The foot pads can improve the stability of the support base 102 when placed on a flat surface, and the sealant can further improve the sealing between the bottom shell 1 and the support base 102, which is beneficial for vacuuming the inside of the device.

[0029] Furthermore, the top surface of the stage 4 is provided with a set of first protrusions 402 and a set of second protrusions 403. Both the first protrusions 402 and the second protrusions 403 are quadrangular pyramidal structures, and the first protrusions 402 and the second protrusions 403 are arranged alternately. The first protrusions 402 and the second protrusions 403 can provide friction for the anchor bolts and cables, thereby improving stability. In addition, the first protrusions 402 and the second protrusions 403 can make the top of the stage 4 form a frosted surface, thereby suppressing the reflection of X-rays on the top of the stage 4 and improving the accuracy of X-ray testing of anchor bolts and cables.

[0030] Furthermore, a vacuum pump 201 is fixedly installed on one side of the protective cover 2, and the air extraction pipe of the vacuum pump 201 is connected to the inside of the protective cover 2. The vacuum pump 201 can draw air from the inside of the protective cover 2 after being powered on, so that the inside of the device forms a near-vacuum environment, avoiding air from affecting the accuracy of the X-ray non-destructive test of the anchor bolt and cable anchor.

[0031] Furthermore, a control panel 301 is fixedly installed on one side of the top of the X-ray sensor 3. The control panel 301 is electrically connected to the X-ray sensor 3 via a cable, and the X-ray sensor 3 is connected to an external power source via a cable.

[0032] Working principle: First, the anchor bolt to be tested is placed on the top of the stage 4. Its stability is ensured by the friction provided by the first protrusion 402 and the second protrusion 403. Then, the protective cover 2 is closed to form a closed environment. The vacuum pump 201 is started to evacuate the inside of the protective cover 2 to reduce the interference of air on the X-ray detection. The X-ray sensor 3 is started through the control panel 301 to uniformly emit X-rays to penetrate the anchor bolt. During this process, the reflection of X-rays inside the anchor bolt is captured by the sensor and a corresponding data image is generated, which reflects the change of internal stress of the anchor bolt, thus completing the non-destructive testing.

[0033] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A non-destructive testing device for anchor bolt prestressing, comprising a base shell (1), a protective cover (2), and an X-ray sensor (3), characterized in that: The bottom of the bottom shell (1) is fixedly installed with a support base (102), and the top of the bottom shell (1) is fixedly installed with a square-shaped sealing ring (101). Two anti-slip pads (103) are fixedly installed on the top of the sealing ring (101) near the front position. The bottom shell (1) and the support base (102) are provided with mounting grooves. The mounting slot is equipped with a platform (4), and two telescopic rods (401) are fixedly installed at the bottom of the platform (4). The bottom of the telescopic rods (401) is fixedly connected to the support base (102). The top surface of the platform (4) is provided with a set of first protrusions (402) and a set of second protrusions (403). The first protrusions (402) and the second protrusions (403) are both quadrangular pyramid structures, and the first protrusions (402) and the second protrusions (403) are arranged alternately. The top of the bottom shell (1) is fitted with a protective cover (2) via a hinge. The top of the protective cover (2) has an installation opening. The protective cover (2) is made of light-shielding material. A handle (202) is fixedly installed on one side of the front of the protective cover (2). An X-ray sensor (3) is fixedly installed on the top of the protective cover (2).

2. The non-destructive testing device for anchor bolt cable prestressing according to claim 1, characterized in that: Foot pads are fixedly installed on both sides of the bottom of the support base (102), and sealant is applied at the connection between the support base (102) and the bottom shell (1).

3. The non-destructive testing device for anchor bolt cable prestressing according to claim 1, characterized in that: A vacuum pump (201) is fixedly installed on one side of the protective cover (2), and the suction pipe of the vacuum pump (201) is connected to the interior of the protective cover (2).

4. The non-destructive testing device for anchor bolt cable anchor prestress according to claim 1, characterized in that: A control panel (301) is fixedly installed on one side of the top of the X-ray sensor (3). The control panel (301) is electrically connected to the X-ray sensor (3) via a cable, and the X-ray sensor (3) is connected to an external power source via a cable.

Images