Flaw detector convenient to move

Abstract

The utility model discloses a flaw detector convenient to move in the technical field, which comprises a steel rail flaw detector, protective frames are mounted at four corners of the steel rail flaw detector, two connecting plates are mounted on the lower walls of the protective frames, clamping mechanisms are arranged on the lower walls of the two connecting plates, and each clamping mechanism comprises a sliding chute, a sliding block, a wheel frame, a wheel and an ejector rod, according to the device, the clamping mechanism is arranged below the two connecting plates, the device is convenient to move through wheel frames and wheels in the clamping mechanism, and meanwhile, the wheel frames in the clamping mechanism can be clamped on the two sides of a steel rail under the jacking action of the positioning mechanism, so that the steel rail flaw detector is fixed on the steel rail, and the device is convenient to use. The situation that the steel rail flaw detector shakes in the process that a worker pushes the steel rail flaw detector to move on the steel rail is avoided, the situation that the flaw detector topples over is avoided, and meanwhile the accuracy of the detection result of the steel rail flaw detector can be prevented from being affected.

Description

Technical Field

[0001] The utility model relates to the technical field of non-destructive flaw detection, in particular to a flaw detector which is easy to move. Background Art

[0002] With the continuous advancement of science and technology, flaw detectors are widely used in various industries. Ultrasonic flaw detectors are one of them. Ultrasonic flaw detectors are an industrial non-destructive flaw detection instrument that can quickly, conveniently, non-destructively and accurately detect, locate, evaluate and diagnose various defects such as cracks, porosity, pores and inclusions inside workpieces.

[0003] When an ultrasonic flaw detector is inspecting the surface of a rail, it only contacts the upper end and inner side of the rail when it is moving on the rail. Therefore, a worker needs to hold the flaw detector while it is being moved. However, the flaw detector may shake left and right during the holding process, and may even fall over.

[0004] Therefore, a flaw detector that is easy to move and more stable is needed. Utility Model Content

[0005] The purpose of the utility model is to provide a portable flaw detector to solve the problem in the background art that the flaw detector may shake left and right or even fall over during the holding process.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a portable flaw detector, comprising a rail flaw detector, wherein protective frames are installed at the four corners of the rail flaw detector, and connecting plates are installed on the lower wall of the protective frames. There are two connecting plates in total, and the two connecting plates connect the four protective frames together in groups of two. The lower walls of the two connecting plates are provided with a clamping mechanism;

[0007] The clamping mechanism includes a slide groove, a slider, a wheel frame, a wheel and a push rod. The lower wall of the connecting plate is provided with a slide groove, a slider is slidably installed in the slide groove, there are two sliders, the lower walls of the two sliders are both equipped with a wheel frame, the wheel frame is rotatably installed inside, and a push rod is installed on the side wall of the wheel frame, and the push rod can be in contact with the side wall of the external rail;

[0008] Positioning mechanisms are inserted and installed on both the left and right side walls of the connecting plate, and the positioning mechanisms can fix the position of the clamping mechanism.

[0009] As a preferred embodiment of the present invention, the front and rear side walls of the rail flaw detector are both equipped with connecting frames, the inner side wall of the connecting frame is rotatably equipped with a guide wheel, the outer side of the guide wheel is equipped with a limiting ring, there are two limiting rings, the two limiting rings are respectively arranged on the left and right sides of the guide wheel, and the two limiting rings can respectively fit with the left and right sides of the external rail.

[0010] As a preferred embodiment of the present invention, a roller is sleeved on the outer side of the push rod, a rubber sleeve is sleeved on the outer side wall of the roller, and the side wall of the rubber sleeve is in contact with the side wall of the external rail.

[0011] As a preferred embodiment of the present invention, the positioning mechanism includes a threaded hole, a screw and a top block. The side wall of the connecting plate is provided with a threaded hole, a screw is rotatably installed in the threaded hole, the threaded hole is connected to the slide groove, and a top block is installed at one end of the screw located in the slide groove, and the top block can be fitted with the side wall of the slider.

[0012] As a preferred embodiment of the present invention, the wheel frame includes a frame body, a fixed shaft and a rotating disk. The inner side wall of the frame body is installed with a fixed shaft, the wheel is rotatably installed on the outer side of the fixed shaft, and the side wall of the frame body is rotatably installed with a rotating disk, and the rotating disk can be fitted with the side wall of the external rail.

[0013] As a preferred embodiment of the present invention, one end of a support rod is installed on the rear side wall of the rail flaw detector, and a push handle is installed on the other end of the support rod.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The device is convenient for moving by arranging a clamping mechanism under the two connecting plates, and the wheel frame and the wheel in the clamping mechanism. At the same time, the wheel frame in the clamping mechanism can be clamped on both sides of the rail under the pushing of the positioning mechanism, so that the rail flaw detector is fixed on the rail, avoiding the rail flaw detector from shaking when the staff pushes the rail flaw detector to move on the rail, avoiding the flaw detector from tipping over, and avoiding affecting the accuracy of the detection result of the rail flaw detector. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the patent structure;

[0017] Figure 2 This is a schematic diagram of the clamping mechanism structure of this patent;

[0018] Figure 3 for Figure 2 Cross-sectional view at point A in the middle.

[0019] In the figure: 1 rail flaw detector, 2 protective frame, 3 connecting plate, 4 clamping mechanism, 41 slide groove, 42 slider, 43 wheel frame, 44 wheel, 45 push rod, 5 positioning mechanism, 51 threaded hole, 52 screw, 53 push block, 6 connecting frame, 7 guide wheel, 8 limiting ring, 9 roller, 10 rubber sleeve, 11 support rod, 12 push handle, 431 frame body, 432 fixed shaft, 433 rotating disk. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-3 , the utility model provides a technical solution:

[0022] In the technical solution, a portable flaw detector includes a rail flaw detector 1, with protective frames 2 installed at the four corners of the rail flaw detector 1. The lower wall of the protective frame 2 is installed with a connecting plate 3. There are two connecting plates 3. The two connecting plates 3 connect the four protective frames 2 together in pairs. The lower walls of the two connecting plates 3 are provided with a clamping mechanism 4.

[0023] The clamping mechanism 4 includes a chute 41, a slider 42, a wheel frame 43, a wheel 44 and a push rod 45. The lower wall of the connecting plate 3 is provided with a chute 41, and a slider 42 is slidably installed in the chute 41. There are two sliders 42, and the lower wall of each slider 42 is installed with a wheel frame 43. The wheel 44 is rotatably installed inside the wheel frame 43. The side wall of the wheel frame 43 is installed with a push rod 45, which can fit the side wall of the external rail.

[0024] Positioning mechanisms 5 are inserted and installed on both the left and right side walls of the connecting plate 3, and the positioning mechanisms 5 can fix the position of the clamping mechanism 4;

[0025] In this technical solution, the rail flaw detector 1 is based on existing technology. The rail flaw detector 1 uses an ultrasonic probe provided below the main body to perform non-destructive flaw detection on the rails while moving. The instrument complies with TB / T2340-2000 "Technical Requirements for Multi-Channel A-Type Display Rail Ultrasonic Flaw Detectors" and TB / T2340-2012 "Rail Ultrasonic Flaw Detectors."

[0026] In order to prevent the rail flaw detector 1 from shaking during its movement on the rail, a clamping mechanism 4 is provided under the connecting plate 3 of the device. The rail is clamped by the wheel frames 43 located on both sides of the rail, and the position of the wheel frames 43 is fixed by the positioning mechanism 5, so that the device is clamped on the rail without affecting the movement of the device, thereby avoiding the rail flaw detector 1 from tipping over and affecting the accuracy of the detection results of the rail flaw detector 1.

[0027] In some technical solutions, connecting frames 6 are installed on the front and rear side walls of the rail flaw detector 1, and a guide wheel 7 is rotatably installed on the inner side wall of the connecting frame 6. A limit ring 8 is installed on the outer side of the guide wheel 7. There are two limit rings 8, and the two limit rings 8 are respectively arranged on the left and right sides of the guide wheel 7. The two limit rings 8 can respectively fit with the left and right sides of the external rail.

[0028] In this technical solution, the limiting ring 8 on the outer side of the guide wheel 7 can assist the clamping mechanism 4 to improve the stability of the device during movement and avoid shaking of the device during movement.

[0029] In some technical solutions, a roller 9 is sleeved on the outer side of the push rod 45, a rubber sleeve 10 is sleeved on the outer side wall of the roller 9, and the side wall of the rubber sleeve 10 is in contact with the side wall of the outer rail.

[0030] In this technical solution, compared with the direct contact between the top rod 45 and the rail, the provision of the roller 9 can reduce the friction generated after the two contact, making the movement of the device on the rail smoother.

[0031] In some technical solutions, the positioning mechanism 5 includes a threaded hole 51, a screw 52 and a top block 53. The side wall of the connecting plate 3 is provided with a threaded hole 51, and a screw 52 is rotatably installed in the threaded hole 51. The threaded hole 51 is connected to the slide groove 41, and a top block 53 is installed at one end of the screw 52 located in the slide groove 41. The top block 53 can fit with the side wall of the slider 42.

[0032] In this technical solution, after the device is placed on the rail, the screws 52 on both sides of the connecting plate 3 are rotated to push the slider 42 through the push block 53, so that the wheel frame 43 is fitted to the outer side of the rail.

[0033] In some technical solutions, the wheel frame 43 includes a frame body 431, a fixed shaft 432 and a rotating disk 433. The fixed shaft 432 is installed on the inner wall of the frame body 431, the wheel 44 is rotatably installed on the outer side of the fixed shaft 432, and the rotating disk 433 is rotatably installed on the side wall of the frame body 431. The rotating disk 433 can be fitted with the side wall of the external rail.

[0034] In this technical solution, the rotating disk 433 can rotate as the device moves, so as to reduce the friction between the wheel frame 43 and the rail.

[0035] In some technical solutions, one end of a support rod 11 is installed on the rear side wall of the rail flaw detector 1, and a push handle 12 is installed on the other end of the support rod 11.

[0036] Working principle: When inspecting the rails, first lift the device and place it on the rails. Support the device with the guide wheels 7 on the front and rear sides. At this time, the four wheels 44 are in the air. Rotate the screw 52 in the positioning mechanism 5 so that the wheel frames 43 on both sides of the rail fit with the side walls of the rail under the push of the screw 52 and the top block 53, so that the device is fixed on the rails. Then the staff can start the rail flaw detector 1 to perform non-destructive inspection on the rails. During the inspection process, the push handle 12 is used to push the device to move on the rails.

[0037] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0038] While the present invention has been described above with reference to exemplary embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as no structural conflicts exist, the various features of the disclosed embodiments may be combined with one another in any manner. The omission of an exhaustive description of these combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A portable flaw detector, comprising a rail flaw detector (1), characterized in that: The rail flaw detector (1) is provided with a protective frame (2) at each of the four corners, and a connecting plate (3) is provided on the lower wall of the protective frame (2). There are two connecting plates (3) in total, and the two connecting plates (3) connect the four protective frames (2) together in pairs, and the lower walls of the two connecting plates (3) are provided with a clamping mechanism (4); The clamping mechanism (4) includes a chute (41), a slider (42), a wheel frame (43), a wheel (44) and a push rod (45). The lower wall of the connecting plate (3) is provided with a chute (41). A slider (42) is slidably installed in the chute (41). There are two sliders (42). The lower walls of the two sliders (42) are both provided with a wheel frame (43). The wheel (44) is rotatably installed inside the wheel frame (43). The side wall of the wheel frame (43) is provided with a push rod (45). The push rod (45) can fit with the side wall of the external rail. Positioning mechanisms (5) are inserted and installed on both the left and right side walls of the connecting plate (3), and the positioning mechanisms (5) can fix the position of the clamping mechanism (4).

2. The portable flaw detector according to claim 1, characterized in that: The front and rear side walls of the rail flaw detector (1) are both equipped with connecting frames (6), the inner side wall of the connecting frame (6) is rotatably equipped with a guide wheel (7), the outer side of the guide wheel (7) is equipped with a limiting ring (8), there are two limiting rings (8), the two limiting rings (8) are respectively arranged on the left and right sides of the guide wheel (7), and the two limiting rings (8) can respectively fit with the left and right sides of the external rail.

3. The portable flaw detector according to claim 1, characterized in that: The outer side of the push rod (45) is sleeved with a roller (9), the outer side wall of the roller (9) is sleeved with a rubber sleeve (10), and the side wall of the rubber sleeve (10) is in contact with the side wall of the external rail.

4. The portable flaw detector according to claim 1, characterized in that: The positioning mechanism (5) includes a threaded hole (51), a screw rod (52) and a top block (53). The side wall of the connecting plate (3) is provided with a threaded hole (51). The screw rod (52) is rotatably installed in the threaded hole (51). The threaded hole (51) is connected to the slide groove (41). One end of the screw rod (52) located in the slide groove (41) is provided with a top block (53). The top block (53) can fit with the side wall of the slider (42).

5. The portable flaw detector according to claim 1, characterized in that: The wheel frame (43) comprises a frame body (431), a fixed shaft (432) and a rotating disk (433); the fixed shaft (432) is installed on the inner side wall of the frame body (431); the wheel (44) is rotatably installed on the outer side of the fixed shaft (432); the rotating disk (433) is rotatably installed on the side wall of the frame body (431); and the rotating disk (433) can be fitted with the side wall of the external rail.

6. The portable flaw detector according to claim 1, characterized in that: One end of a support rod (11) is installed on the rear side wall of the rail flaw detector (1), and a push handle (12) is installed on the other end of the support rod (11).

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