Paint surface thickness detector

Abstract

The utility model discloses a paint surface thickness detector, which belongs to the technical field of track paint surface thickness detection, and comprises a steel rail, a locking fastener, a thickness gauge body, a button, a connecting line and a probe, the steel rail is fixed on a sleeper through the locking fastener, the front end of the thickness gauge body is provided with the button and a display screen, and the thickness gauge body is connected with the probe through the connecting line. The movable frame is provided with the sliding groove, the movable frame and the T-shaped insertion rod can be installed, the movable frame is fixed by adjusting the position of the T-shaped insertion rod, and different detection requirements are met. The movable frame and the L-shaped mounting frame are tightly fixed through bolts and nuts, so that the stability of the whole detection device is enhanced, and errors caused by shaking or vibration are reduced. The moving wheels are mounted on the L-shaped mounting frame and the movable frame, are in contact with the steel rail and roll to drive the probe to move, so that the detection process is smoother and more efficient. The distance between the moving wheel and the steel rail can be adjusted through installation hole positions and bolt fixation, tight contact is ensured, and the accuracy and stability of detection are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rail paint thickness detection, in particular to a paint thickness detector. Background Art

[0002] An ultrasonic thickness gauge is an instrument that uses the characteristics of ultrasonic waves propagating in a medium to measure the thickness of an object. Ultrasonic thickness gauges play an important role in the detection of rail paint thickness. In the detection of rail paint thickness, the probe of the ultrasonic thickness gauge is placed on the paint surface, and the ultrasonic wave is emitted through the paint layer to reach the substrate (such as metal rail). When the ultrasonic wave reaches the substrate, it is reflected back to the probe, received and converted into an electrical signal. By measuring the time difference from the emission to the reception of the ultrasonic wave, the thickness of the paint surface can be calculated.

[0003] To ensure that the ultrasonic wave can accurately penetrate the material and return to the receiver, the handheld device needs to maintain a certain stability and pressure. However, maintaining muscle contraction and exertion for a long time will cause hand muscle fatigue and soreness. Once the hand muscles are fatigued, it is difficult for the operator to maintain a stable hand posture and strength, which affects the stable contact between the ultrasonic thickness gauge probe and the material surface, and the propagation and reception of ultrasonic waves will also be affected. This instability may cause deviations in measurement results and reduce accuracy. Hand soreness not only affects accuracy, but also reduces work efficiency, requiring operators to rest more frequently and prolonging inspection time. In addition, fatigue may also distract the operator's attention and concentration, increasing the risk of operating errors. Utility Model Content

[0004] The main purpose of the utility model is to provide a paint thickness detector, which can effectively solve the problems raised in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A paint thickness detector comprises a rail, a locking fastener, a thickness gauge body, a button, a connecting wire and a probe. The rail is fixed to the sleeper through the locking fastener. The front end of the thickness gauge body is provided with a button and a display screen, and is connected to the probe through the connecting wire. The probe contacts the surface of the rail to detect the paint thickness.

[0007] The end sleeve of the probe is provided with an L-shaped mounting frame and a movable frame, the L-shaped mounting frame and the movable frame have half holes in which the probe is inserted, the L-shaped mounting frame and the movable frame are fixed by bolts and nuts, the inner end of the L-shaped mounting frame is provided with a moving wheel contacting the rail, the movable frame is pulled to make the moving wheel move along the rail, and the probe moves along the rail with the movable frame for detection;

[0008] A slide groove is provided on the end surface of the movable frame, and a movable frame and a T-shaped rod are installed at the slide groove. A socket facing the slide groove is provided at the upper end of the movable frame. The T-shaped rod passes through the slide groove and is installed at the socket. Installation holes are provided on the T-shaped rod and the movable frame and are fixed by bolts. Another movable wheel contacting the rail is installed at the inner end of the movable frame. The two movable wheels clamp the rail to keep the probe moving stably on the rail.

[0009] As a further preferred embodiment of the present invention, the side wall of the thickness gauge body is connected with a hanging rope, and the hanging rope is a nylon braided rope;

[0010] As a further preferred embodiment of the present invention, a rubber pad is clamped at the connection between the L-shaped mounting frame and the movable frame, and the rubber pad extends to the probe to prevent the probe from sliding. Four aligned circular holes are opened on the L-shaped mounting frame and the movable frame, and bolts are inserted into the circular holes and connected with nuts to fix the L-shaped mounting frame and the movable frame;

[0011] As a further preferred solution of the utility model, the moving wheel is fixed to the L-shaped mounting frame and the movable frame by bolts, and the moving wheel faces the groove of the side wall of the rail;

[0012] As a further preferred embodiment of the present invention, the insertion hole is a threaded hole, the lower end of the T-shaped insertion rod is a threaded rod, the T-shaped insertion rod is threadedly connected to the mobile frame, and a plurality of the mounting holes are equidistantly distributed at the notch of the slide slot, and the T-shaped insertion rod adjusts the distance between the moving wheel on the mobile frame and the rail through different mounting holes;

[0013] As a further preferred solution of the utility model, the L-shaped mounting frame, the movable frame and the movable wheels mounted thereon are used separately on the rails.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] In the utility model, a slide groove is provided on the movable frame, and a movable frame and a T-shaped plug rod can be installed. The movable frame is fixed by adjusting the position of the T-shaped plug rod to meet different detection requirements. The movable frame and the L-shaped mounting frame are tightly fixed by bolts and nuts, which enhances the stability of the entire detection device and reduces errors caused by shaking or vibration. The moving wheel is installed on the L-shaped mounting frame and the movable frame, contacts the rail, and drives the probe to move by rolling, making the detection process smoother and more efficient. By installing holes and fixing with bolts, the distance between the moving wheel and the rail can be adjusted to ensure close contact and improve the accuracy and stability of the detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2This is a display diagram of the rail and ultrasonic thickness gauge of the utility model;

[0018] Figure 3 It is a front schematic diagram of a rail and an ultrasonic thickness gauge of the utility model;

[0019] Figure 4 This is a display diagram of the ultrasonic thickness gauge of the utility model;

[0020] Figure 5 for Figure 4 Enlarged schematic diagram at point A in the middle.

[0021] In the figure: 1. Rail; 2. Locking fastener; 3. Thickness gauge body; 4. Hanging rope; 5. Button; 6. Connecting wire; 7. Probe; 8. L-shaped mounting frame; 9. Movable frame; 10. Moving wheel; 11. Slide groove; 12. Movable frame; 13. Socket; 14. T-shaped plug rod; 15. Mounting hole. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figure 1 - Figure 5 As shown, a paint thickness detector has the following main components: rail 1 is the main detection object of the detector, which is fixed to the sleeper by a locking fastener 2; the locking fastener 2 is used to stably fix the rail 1 to the sleeper; the thickness gauge body 3 is the core part of the instrument, with buttons 5 and a display screen on the front, and is connected to the probe 7 by a connecting line 6. A hanging rope 4 is connected to the side wall of the body for easy carrying; the hanging rope 4 is used to facilitate carrying the thickness gauge body 3, and is usually made of nylon; the button 5 is used to control the operation of the thickness gauge; the connecting line 6 is used to connect the thickness gauge body 3 and the probe 7 to ensure the stability of data transmission; the probe 7 directly contacts the surface of the rail 1 to detect the paint thickness; the L-shaped mounting frame 8 cooperates with the movable frame 9, fixed together by bolts and nuts, and the internal end is equipped with a moving wheel 10;

[0024] The movable frame 9 cooperates with the L-shaped mounting frame 8 and is provided with a slide groove 11 for installing the movable frame 12 and the T-shaped insertion rod 14; the movable wheel 10 is installed on the L-shaped mounting frame 8 and the movable frame 9, contacts with the rail 1, and drives the probe 7 to move by rolling; the slide groove 11 is opened on the end face of the movable frame 9, and is used to install the movable frame 12 and the T-shaped insertion rod 14; the movable frame 12 is installed in the slide groove 11, and a socket 13 is provided at the upper end; the socket 13 is designed as a threaded hole, which is used to connect with the threaded rod of the T-shaped insertion rod 14; the T-shaped insertion rod 14 passes through the slide groove 11 and is fixed in the socket 13, which is used to fix the position of the movable frame 12; the installation hole 15 is opened on the movable frame 9 and the T-shaped insertion rod 14, which is fixed by bolts and is used to adjust the distance between the movable wheel 10 and the rail 1; a rubber pad is clamped at the connection between the L-shaped mounting frame 8 and the movable frame 9 to prevent the probe 7 from sliding during the movement;

[0025] The L-shaped mounting frame 8 , the movable frame 9 and the moving wheel 10 can be used as independent components on the rail 1 .

[0026] Testing process: Place the rail 1 at the position to be tested and ensure that it is stable; use the locking fastener 2 to fix the rail 1 on the sleeper to ensure that the rail 1 does not move; check whether the thickness gauge body 3, probe 7, connecting line 6 and other components are intact; connect the probe 7 to the thickness gauge body 3 and ensure that the connection is stable; turn on the power of the thickness gauge body 3 and press button 5 to perform initialization settings;

[0027] Fix the L-shaped mounting frame 8 and the movable frame 9 on the rail 1 with bolts and nuts to ensure a stable installation; clamp the rubber pad at the connection between the L-shaped mounting frame 8 and the movable frame 9 to prevent the probe 7 from sliding during movement; install the mobile frame 12 in the slide groove 11 of the movable frame 9 to ensure that the mobile frame 12 can slide freely in the slide groove 11; pass the T-shaped rod 14 through the slide groove 11 and fix it in the socket 13 of the mobile frame 12 to fix the position of the mobile frame 12; use bolts to fix the moving wheel 10 on the L-shaped mounting frame 8 and the movable frame 9 through the installation hole 15 to ensure that the moving wheel 10 is in close contact with the rail 1;

[0028] The thickness gauge body 3 is controlled by pressing button 5 to start the probe 7 to work; the movable frame 9 is pushed to make the moving wheel 10 roll on the rail 1, driving the probe 7 to move along the surface of the rail 1; during the movement, the probe 7 will detect the paint thickness on the surface of the rail 1 in real time, and transmit the data to the display screen of the thickness gauge body 3; observe the data on the display screen, record the paint thickness at each position, and perform necessary analysis; after the detection is completed, turn off the power of the thickness gauge body 3 by pressing button 5; remove the L-shaped mounting frame 8, the movable frame 9 and the moving wheel 10, and store them properly as independent components; clean the thickness gauge body 3, the probe 7 and other components to ensure that they are clean and tidy for next use; the process of detecting the paint thickness on the surface of the rail 1 using the paint thickness detector can be completed.

[0029] It should be noted that, in this article, relational terms such as first and second (number one, number two), etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. However, the terms "include", "comprises" or any other variations are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements that are not explicitly listed, or include elements that are inherent to such process, method, article or device. In the absence of more restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device that includes the elements.

[0030] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A paint thickness detector, comprising a rail (1), a locking fastener (2), a thickness gauge body (3), a button (5), a connecting line (6) and a probe (7), wherein the rail (1) is fixed to a rail sleeper via the locking fastener (2), a button (5) and a display screen are provided at the front end of the thickness gauge body (3), and the probe (7) is connected via the connecting line (6), and the probe (7) contacts the surface of the rail (1) to detect the paint thickness, characterized in that: The end sleeve of the probe (7) is provided with an L-shaped mounting frame (8) and a movable frame (9), the L-shaped mounting frame (8) and the movable frame (9) have half holes into which the probe (7) is inserted, the L-shaped mounting frame (8) and the movable frame (9) are fixed by bolts and nuts, and the inner end of the L-shaped mounting frame (8) is provided with a moving wheel (10) that contacts the steel rail (1), and the movable frame (9) is pulled to make the moving wheel (10) move along the steel rail (1), and the probe (7) moves along the steel rail (1) with the movable frame (9) for detection; The end surface of the movable frame (9) is provided with a slide groove (11), and a movable frame (12) and a T-shaped plug rod (14) are installed at the slide groove (11). The upper end of the movable frame (12) is provided with a plug hole (13) facing the slide groove (11), and the T-shaped plug rod (14) passes through the slide groove (11) and is installed at the plug hole (13). The T-shaped plug rod (14) and the movable frame (9) are provided with mounting holes (15) and are fixed by bolts. Another movable wheel (10) contacting the steel rail (1) is installed at the inner end of the movable frame (12), and the two movable wheels (10) clamp the steel rail (1) to keep the probe (7) moving stably on the steel rail (1).

2. A paint thickness detector according to claim 1, characterized in that: A hanging rope (4) is connected to the side wall of the thickness gauge body (3), and the hanging rope (4) is a nylon braided rope.

3. A paint thickness detector according to claim 2, characterized in that: A rubber pad is clamped at the connection between the L-shaped mounting frame (8) and the movable frame (9), and the rubber pad extends to the probe (7) to prevent the probe (7) from sliding. Four aligned circular holes are opened on the L-shaped mounting frame (8) and the movable frame (9), and bolts are inserted into the circular holes and connected with nuts to fix the L-shaped mounting frame (8) and the movable frame (9).

4. A paint thickness detector according to claim 3, characterized in that: The moving wheel (10) is fixed to the L-shaped mounting frame (8) and the movable frame (9) by means of bolts, and the moving wheel (10) faces the groove on the side wall of the steel rail (1).

5. A paint thickness detector according to claim 4, characterized in that: The insertion hole (13) is a threaded hole, the lower end of the T-shaped insertion rod (14) is a threaded rod, the T-shaped insertion rod (14) is threadedly connected to the moving frame (12), and a plurality of mounting holes (15) are equidistantly distributed at the notch of the slide groove (11). The T-shaped insertion rod (14) adjusts the distance between the moving wheel (10) on the moving frame (12) and the steel rail (1) through different mounting holes (15).

6. A paint thickness detector according to claim 5, characterized in that: The L-shaped mounting frame (8), the movable frame (9) and the movable wheels (10) mounted thereon are used separately on the steel rail (1).

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