Nondestructive testing auxiliary device for exposed long anchor rod

Abstract

The utility model relates to the technical field of chamber anchor rod provides a kind of exposed long anchor rod nondestructive testing auxiliary device, including support frame, lifting assembly and detection instrument;Lifting assembly includes lifting actuator and drive arrangement, lifting actuator is located on support frame, drive arrangement is connected with support frame, and is transmissionally connected with lifting actuator;Detection instrument is connected with lifting actuator, and the detection end of detection instrument is vertically downward to be set to move in vertical direction by lifting actuator to drive detection instrument.The utility model is driven by the setting of drive arrangement and lifting assembly, so that it can drive detection instrument to move up and down by drive arrangement, to realize detection operation, avoid the uneven stress of each time caused by artificial pushing, improve the accuracy of detection.

Description

Technical Field

[0001] This utility model relates to the field of cavern anchor bolt technology, and in particular to an auxiliary device for non-destructive testing of exposed long anchor bolts. Background Technology

[0002] Cavern anchors are components that transmit tensile force to stable soil and rock layers, typically consisting of a rod body, fixing components, and grouting material. When steel strands or high-strength steel wire bundles are used as the rod body material, they can also be called anchor cables. Depending on the anchoring medium, cavern anchors can be divided into soil anchors and rock anchors; based on function and application, they can also be classified as system anchors, prestressed anchors, etc.

[0003] During the construction of anchor bolts in caverns, to ensure the integrity of the concrete and the surrounding rock mass, part of the anchor bolt is located within the rock mass, while another part is located outside. For safety reasons, it is often necessary to test the density of the anchor bolts. In related technologies, most testing instruments rely on manual force to move the probe, which can lead to significant variations in the force applied by the operator during multiple tests, potentially affecting the test results. Therefore, to address the above issues, a non-destructive testing auxiliary device for exposed long anchor bolts is proposed. Utility Model Content

[0004] This invention provides an auxiliary device for non-destructive testing of exposed long anchor bolts, which solves the problem that manual pushing during testing affects the test results in the prior art.

[0005] This utility model provides an auxiliary device for non-destructive testing of exposed long anchor bolts, comprising: a support frame, a lifting assembly, and a testing instrument; the lifting assembly includes a lifting actuator and a driving device, the lifting actuator is mounted on the support frame, the driving device is connected to the support frame and is drively connected to the lifting actuator; the testing instrument is connected to the lifting actuator, and the testing end of the testing instrument is vertically downward, so that the lifting actuator can drive the testing instrument to move in the vertical direction.

[0006] According to the non-destructive testing auxiliary device for exposed long anchor bolts provided by this utility model, the lifting actuator includes a lead screw and a slider. One end of the lead screw is connected to the driving device, and the slider is threadedly connected to the lead screw so as to drive the lead screw to rotate through the driving device and make the slider reciprocate along the axial direction of the lead screw.

[0007] According to the non-destructive testing auxiliary device for exposed long anchor rods provided by this utility model, the support frame includes a pad and a fixing frame. The fixing frame is fixedly disposed on the pad and extends in the vertical direction. Slide grooves are provided on both sides of the fixing frame, and a part of the slider body is located in the slide groove.

[0008] According to the non-destructive testing auxiliary device for exposed long anchor rods provided by this utility model, the driving device is located on the top of the support frame, and a pulley is provided at the top of the lead screw, and the pulley is connected to the driving device by belt drive.

[0009] According to the non-destructive testing auxiliary device for exposed long anchor rods provided by this utility model, a connecting block is fixedly connected to the top of the fixing frame, the driving device is connected to the connecting block, and the output end of the driving device is set vertically upward.

[0010] According to the auxiliary device for non-destructive testing of exposed long anchor rods provided by this utility model, one side of the testing instrument is provided with a connecting part, the connecting part has an insertion space, a part of the slider is inserted into the insertion space; and positioning holes are provided on both the connecting part and the slider, and positioning pins are threaded into the positioning holes to connect the connecting part and the slider.

[0011] According to the non-destructive testing auxiliary device for exposed long anchor rods provided by this utility model, the top of the testing instrument is provided with a handle structure.

[0012] According to the non-destructive testing auxiliary device for exposed long anchor rods provided by this utility model, a protective cover is provided on the display surface of the testing instrument, and the protective cover is hinged to the testing instrument.

[0013] According to the non-destructive testing auxiliary device for exposed long anchor rods provided by this utility model, the protective cover is provided with a magnetic suction part, and a corresponding magnetic attraction mating part is provided on the body of the testing instrument. The magnetic suction part and the magnetic attraction mating part attract and limit each other.

[0014] According to the non-destructive testing auxiliary device for exposed long anchor rods provided by this utility model, the testing instrument is provided with support blocks on both sides, and the magnetic attraction mating part is fixedly provided inside the support blocks.

[0015] This utility model provides an auxiliary device for non-destructive testing of exposed long anchor bolts. Through the setting of a drive device and a lifting component, it can drive the testing instrument to move up and down, thereby realizing the testing operation. This avoids the uneven force caused by manual pushing and improves the accuracy of the test. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1This is a three-dimensional structural diagram of the testing instrument in the non-destructive testing auxiliary device for exposed long anchor bolts provided by this utility model.

[0018] Figure 2 This utility model provides Figure 1 A schematic diagram of the structure at point A.

[0019] Figure 3 This is a bottom view of the detector in the auxiliary device for non-destructive testing of exposed long anchor rods provided by this utility model.

[0020] Figure 4 This is a side view of the detector in the non-destructive testing auxiliary device for exposed long anchor rods provided by this utility model.

[0021] Figure 5 This utility model provides Figure 4 A schematic diagram of the structure at point B.

[0022] Figure label:

[0023] 1. Testing instrument; 11. Connecting part; 2. Handle structure; 3. Probe; 4. Support frame; 41. Pad; 42. Lead screw; 421. Pulley; 43. Slider; 44. Positioning pin; 45. Fixing frame; 46. Connecting block; 47. Drive device; 48. Belt; 49. Insertion space; 5. Protective cover; 51. Hinge; 52. Magnetic suction part; 53. Support block; 55. Magnetic suction mating part. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of clarifying the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model according to the specific circumstances.

[0027] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0029] In related technologies, during the construction of anchor bolts in tunnels, density testing is often conducted manually. This involves manually holding or carrying the testing instrument. During operation, a thrust is applied to bring the probe of the instrument into contact with the material being tested, applying pressure to achieve the test. However, the accuracy of the measured results can be affected by significant variations in pressure applied repeatedly during the manual application of thrust.

[0030] Regarding the problems in related technologies, such as Figures 1-3As shown, this embodiment provides an auxiliary device for non-destructive testing of exposed long anchor bolts, including a support frame 4, a lifting assembly, and a testing instrument 1. The lifting assembly includes a lifting actuator and a drive device 47. The lifting actuator is mounted on the support frame 4, and the drive device 47 is connected to the support frame 4 and has a transmission connection with the lifting actuator. The testing instrument 1 is connected to the lifting actuator, and the testing end of the testing instrument 1 is vertically downward, so that the lifting actuator can drive the testing instrument 1 to move in the vertical direction. Multiple measurements are required for accurate density measurement during compaction testing. In this embodiment, the drive device 47 drives the lifting actuator, and the testing instrument 1 is connected to the lifting actuator, so that when the lifting actuator moves in the vertical direction of the support frame, it can drive the testing instrument 1 to move together, thereby enabling multiple tests and improving the accuracy of the test.

[0031] Specifically, the support frame 4 is the main structure, and the lifting actuator can move back and forth in the vertical direction of the support frame 4. Thus, while the lifting actuator moves up and down, it drives the testing instrument 1 to move up and down. The up and down movement of the testing instrument 1 can achieve multiple density tests.

[0032] Understandably, compared to the manual pushing method used in related technologies, this embodiment achieves automatic movement of the detection instrument 1 through a lifting component, thereby effectively controlling the downward pressure distance each time, avoiding large errors caused by multiple measurements, and improving the accuracy of the measurement.

[0033] The lifting assembly can be a linear motion mechanism, such as a linear motor, which is connected to the detection instrument 1 through its output end, thereby driving the detection instrument 1 to move. In addition, the detection end of the detector is equipped with a probe 3. The probe 3 is relatively long and is set in the vertical direction so that it can contact the object to be tested when detection is required.

[0034] According to some embodiments of this utility model, the lifting actuator includes a lead screw 42 and a slider 43. One end of the lead screw 42 is connected to a drive device 47, and the slider 43 is threadedly connected to the lead screw 42, so that the drive device 47 drives the lead screw 42 to rotate and causes the slider 43 to reciprocate along the axial direction of the lead screw 42. The drive of the lead screw 42 facilitates the control of the lifting distance, thereby enabling efficient adjustment of the test distance during the testing process.

[0035] Specifically, the lead screw 42 is rotatably mounted inside the support frame 4, and the drive device 47 is connected to one end of the lead screw 42, so that the lead screw 42 can rotate under the drive of the drive device 47. The slider 43 is threadedly engaged with the lead screw 42, so that when the lead screw 42 rotates, the slider 43 can move along the axial direction of the lead screw 42, thereby driving the detection instrument 1 to move up and down.

[0036] It is understandable that the lead screw 42, slider 43, and drive device 47 form the lead screw 42 moving mechanism. The output end of the drive device 47 is connected to the lead screw 42 for transmission, thereby transmitting torque and driving the slider 43 to move. The lead screw 42 moving mechanism enables control of the displacement, thus ensuring the accuracy of multiple measurement results.

[0037] Specifically, the drive device 47 can be a servo motor or a stepper motor, thereby enabling precise control of the displacement. Furthermore, it should be understood that the rotatable connection between the lead screw 42 and the support frame 4 can be achieved by installing bearings between the lead screw 42 and the support frame 4, allowing the lead screw 42 to rotate freely, and then driving the lead screw 42 via the drive device 47. This specific configuration is conventional and will not be elaborated further here.

[0038] In conjunction with the above embodiments, the support frame 4 includes a pad 41 and a fixing frame 45. The fixing frame 45 is fixedly mounted on the pad 41 and extends vertically. Slide grooves are provided on both sides of the fixing frame 45, and a portion of the slider 43 is located within the slide grooves. The slider 43 is threadedly engaged with the lead screw 42, and the slider 43 moves up and down by rotating the lead screw 42. In this embodiment, the engagement between the slider 43 and the slide grooves improves the stability of the slider 43's movement, thereby preventing wobbling during its movement.

[0039] Specifically, the pad 41 serves as the bottom support plate, the fixing frame 45 is the main vertical structure, the fixing frame 45 has a receiving space in the middle, the lead screw 42 is located in the receiving space, and the slide groove is connected to the receiving space. Both sides of the slider 43 have protrusions that cooperate with the slide groove, preventing the slider 43 from wobbling left and right during movement and improving its stability.

[0040] It is understandable that the slider 43 is threaded into the lead screw 42, which may cause left-right wobbling during the movement of the slider 43. In this embodiment, the slider 43 is confined within the groove by the setting of the groove, thereby avoiding the wobbling of the slider 43.

[0041] In conjunction with the above embodiments, the drive device 47 is located on the top of the support frame 4, and a pulley 421 is provided at the top of the lead screw 42. The pulley 421 is connected to the drive device 47 via a belt 48. The lead screw 42 is rotatably connected to the fixed frame 45, and the pulley 421 at the top of the lead screw 42 is connected to the drive device 47 via the belt 48, enabling torque transmission and improving the stability of the transmission.

[0042] Specifically, the output end of the drive device 47 is equipped with a flywheel, and the flywheel and pulley 421 are connected by a tensioned belt 48 to achieve transmission, thereby enabling the torque of the drive device 47 to be transmitted to the lead screw 42, realizing the rapid response of the lead screw 42 rotation. The overall structure is simple and easy to arrange.

[0043] In a specific configuration, a connecting block 46 is fixedly connected to the top of the mounting bracket 45, and the driving device 47 is connected to the connecting block 46, with the output end of the driving device 47 vertically upward. The driving device 47 is a motor, and a supporting component is required when connecting the motor. In this embodiment, the connecting block 46 is used to support the driving device 47, which facilitates the assembly of the driving device 47.

[0044] Specifically, the connecting block 46 protrudes from the fixing frame 45, providing installation space between the distal end of the connecting block 46 and the fixing frame 45, which facilitates the assembly of the drive device 47. In actual connection, the connecting block 46 and the fixing frame 45 can be fixedly connected by welding or screws, ensuring a stable operating state for the drive device 47.

[0045] According to some embodiments provided by this utility model, one side of the testing instrument 1 is provided with a connecting part 11, and the connecting part 11 has an insertion space 49. A part of the slider 43 is inserted into the insertion space 49. Positioning holes are provided on both the connecting part 11 and the slider 43, and positioning pins 44 are threaded into the positioning holes to connect the connecting part 11 and the slider 43. The testing instrument 1 may need to be replaced according to different scenarios, or different measuring ranges of the testing instrument 1 may need to be used in different scenarios. In this embodiment, the connection part 11 and the positioning pin 44 make the testing instrument 1 partially detachable, that is, the testing instrument 1 and the slider 43 are detachably connected, which facilitates the replacement of the testing instrument 1.

[0046] Specifically, the connecting part 11 is constructed as a square ring structure, with a rectangular insertion end corresponding to one end of the slider 43. The insertion end is inserted into the insertion space 49 to achieve a pre-tightening effect. At this time, the connecting part 11 and the positioning hole on the slider 43 are on the same straight line. Then, the positioning pin is inserted and the positioning pin 44 is connected through a nut or internal thread hole, thus completing the detachable connection between the slider 43 and the testing instrument 1. Of course, disassembly can be achieved by removing the positioning pin 44, making the overall assembly and disassembly convenient.

[0047] In some embodiments, the top of the detection instrument 1 is provided with a handle structure 2. The handle structure 2 improves the flexibility of the detection device and expands its applicability.

[0048] Specifically, the handle has a T-shaped structure with areas on both sides that facilitate hand gripping. Holding the handle makes it easy to move the entire device and allows for manual operation without the drive device 47. That is, even in scenarios without power supply, this embodiment can still perform measurements by manual pushing, and the accuracy of the measurement can be improved by observing the distance moved down with each push.

[0049] In conjunction with the above embodiments, a protective cover 5 is provided on the display surface of the testing instrument 1, and the protective cover 5 is hinged to the testing instrument 1. The protective cover 5 can protect the testing instrument 1, preventing external dust, impurities, etc. from entering the testing instrument 1 when it is not in operation, thereby improving the service life of the testing instrument 1.

[0050] Specifically, such as Figure 5 As shown, a hinge 51 is connected to the protective cover 5. The protective cover 5 is connected to the main body of the testing instrument 1 through the hinge 51, so that the protective cover 5 can rotate around the hinge 51 to achieve the locking or unlocking of the protective cover 5.

[0051] It is understandable that during the testing process, some environments contain a lot of dust and impurities. Once dust or impurities enter the testing instrument 1, they may affect its overall service life. In this embodiment, the protective cover 5 effectively prevents dust and impurities from entering, thus improving the service life of the instrument.

[0052] In conjunction with the above embodiments, the protective cover 5 is provided with a magnetic suction part 52, and a corresponding magnetic attraction mating part 55 is provided on the main body of the testing instrument 1. The magnetic suction part 52 and the magnetic attraction mating part 55 attract and limit each other. The provision of the magnetic suction part 52 and the magnetic attraction mating part 55 makes it more convenient to fasten the protective cover 5.

[0053] Specifically, both the magnetic suction part 52 and the magnetic attraction part 55 are magnetic blocks. The two magnetic blocks are opposite magnetic blocks, which attract each other through mutual magnetic attraction, making it more convenient to close and open the protective cover 5.

[0054] In conjunction with the above embodiments, the testing instrument 1 is provided with support blocks 53 on both sides, and a magnetic attraction part 55 is fixedly provided inside the support block 53. Normally, the testing instrument 1 does not have a magnetic attraction part 52. In this embodiment, the magnetic attraction part 52 can be supported by the support block 53, which facilitates the quick connection of the magnetic attraction part 52.

[0055] During the actual testing, the pad 41 is placed in a suitable position, and then the testing instrument 1 is pushed so that it fits onto one end of the moving block through the insertion space 49. The positioning pin 44 is then rotated through the positioning hole to the inner wall of both the testing instrument 1 and the moving block, thus connecting them. Next, the motor on the connecting block 46 is started, driving the belt 48 to move. The belt 48 drives the lead screw 42 to rotate through the pulley 421. The rotation of the lead screw 42 drives the slider 43 to move, which in turn moves the testing instrument 1. The probe 3 on the testing instrument 1 can then be inserted into the mortar to complete the testing operation.

[0056] The auxiliary device in this embodiment supports the testing instrument 1 via a fixing frame 45, allowing the probe 3 to enter the mortar more evenly and straight, thereby increasing the accuracy of the test. Furthermore, when operating the testing instrument 1, the protective cover 5 can rotate to lock and unlock. When unlocked, it allows for readings and adjustments, while locking prevents impurities from entering. Additionally, the protective cover 5 can be quickly operated via magnetic attraction.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An auxiliary device for non-destructive testing of exposed long anchor bolts, characterized in that, include: Support frame; A lifting assembly, comprising a lifting actuator and a driving device, wherein the lifting actuator is mounted on the support frame, and the driving device is connected to the support frame and is drively connected to the lifting actuator; A testing instrument is connected to the lifting actuator, and the testing end of the testing instrument is set vertically downward so that the lifting actuator can drive the testing instrument to move in the vertical direction.

2. The auxiliary device for non-destructive testing of exposed long anchor bolts according to claim 1, characterized in that, The lifting actuator includes a lead screw and a slider. One end of the lead screw is connected to the driving device, and the slider is threadedly connected to the lead screw so that the driving device drives the lead screw to rotate and causes the slider to reciprocate along the axial direction of the lead screw.

3. The auxiliary device for non-destructive testing of exposed long anchor bolts according to claim 2, characterized in that, The support frame includes a pad and a fixing frame, the fixing frame being fixedly mounted on the pad and extending in the vertical direction; The fixing frame has sliding grooves on both sides, and a part of the slider body is located in the sliding grooves.

4. The auxiliary device for non-destructive testing of exposed long anchor bolts according to claim 3, characterized in that, The drive device is located on the top of the support frame, and a pulley is provided at the top of the lead screw. The pulley is connected to the drive device by a belt drive.

5. The auxiliary device for non-destructive testing of exposed long anchor bolts according to claim 4, characterized in that, A connecting block is fixedly connected to the top of the fixed frame, the driving device is connected to the connecting block, and the output end of the driving device is set vertically upward.

6. The auxiliary device for non-destructive testing of exposed long anchor bolts according to claim 2, characterized in that, The testing instrument has a connecting part on one side, and the connecting part has an insertion space. A part of the slider is inserted into the insertion space. Positioning holes are provided on both the connecting part and the slider. Positioning pins are threaded into the positioning holes to connect the connecting part and the slider.

7. The auxiliary device for non-destructive testing of exposed long anchor bolts according to claim 1 or 6, characterized in that, The top of the testing instrument is equipped with a handle structure.

8. The auxiliary device for non-destructive testing of exposed long anchor bolts according to claim 1 or 6, characterized in that, The display surface of the testing instrument is provided with a protective cover, which is hinged to the testing instrument.

9. The auxiliary device for non-destructive testing of exposed long anchor bolts according to claim 8, characterized in that, The protective cover is provided with a magnetic suction part, and a corresponding magnetic attraction matching part is provided on the body of the detection instrument. The magnetic suction part and the magnetic attraction matching part attract and limit each other.

10. The auxiliary device for non-destructive testing of exposed long anchor bolts according to claim 9, characterized in that, The testing instrument has support blocks on both sides, and the magnetic attraction part is fixedly installed inside the support blocks.

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