A railway rail flaw detector with easy probe replacement

Abstract

The utility model discloses a railway rail flaw detector that is easy to replace the probe, which relates to the technical field of rail flaw detectors, including a car body and a detection head, telescopic rods are connected to both sides of the car body, one end of the telescopic rods is connected to a connecting frame, a handle is welded to one side of the car body, a body is installed on the top of the car body, a display screen is provided on the top of the body, wheels are provided on the bottom of the car body, a mounting mechanism is provided on the inner side of the connecting frame, a roller is provided on the inner side of the mounting mechanism, and the detection head is located on one side of the mounting mechanism. The railway rail flaw detector that is easy to replace the probe, the handle is rotated to drive the bidirectional screw to rotate, and then the bidirectional screw drives the limit blocks to move away from each other and disengage from the limit groove, and then the U-shaped frame is pulled downward to make the U-shaped frame disengage from the mounting groove, and the roller and the detection head can be quickly removed from the railway rail flaw detector, thereby improving the convenience of the railway rail flaw detector.

Description

Technical Field

[0001] The utility model relates to the technical field of rail flaw detectors, in particular to a railway rail flaw detector which is convenient for replacing probes. Background Art

[0002] Railway rail flaw detection refers to the use of specific instruments and techniques to detect railway rails. It is an important part of the safety inspection and maintenance of railway lines to discover and evaluate defects, cracks and other problems. This work is aimed at ensuring the safe operation and maintenance of railway lines to prevent potential accidents and failures. Therefore, a railway rail flaw detector is needed for inspection. The railway rail flaw detector is a device specially used to detect railway rails, mainly used to discover and evaluate defects, cracks and other problems. The rail flaw detector is usually composed of a probe, a signal amplifier, a recorder and a computer.

[0003] However, the existing railway rail flaw detector has the following disadvantages: during the use of the railway rail flaw detector, the probe and the roller will age and be damaged after long-term use, and the probe and the roller need to be disassembled and replaced, but most of the probes and rollers are installed on the car body by bolts and need to be disassembled with the help of tools. Therefore, the existing railway rail flaw detector needs to be improved. Utility Model Content

[0004] The utility model aims to provide a railway rail flaw detector with easy probe replacement, so as to solve the problem that the probes and rollers of the railway rail flaw detectors currently on the market will age and be damaged after long-term use during use, and the probes and rollers need to be disassembled and replaced, but most of the probes and rollers are installed on the vehicle body by bolts and need to be disassembled with the help of tools.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a railway rail flaw detector that is easy to replace the probe, comprising a car body and a detection head, telescopic rods are connected to both sides of the car body, one end of the telescopic rods is connected to a connecting frame, a handle is welded to one side of the car body, a body is installed above the car body, a display screen is provided above the body, wheels are provided below the car body, a mounting mechanism is provided on the inner side of the connecting frame, a roller is provided on the inner side of the mounting mechanism, the detection head is located on one side of the mounting mechanism, and one side of the detection head is connected to the body through a connecting line, a bracket is welded to one side of the connecting frame, a cleaning mechanism is installed on the inner side of the bracket, an electric push rod is connected to one side of the cleaning mechanism, and a soot blowing mechanism is provided below the bracket away from the cleaning mechanism.

[0006] Preferably, the mounting mechanism comprises a bidirectional screw rod, a limit groove, a handle, a limit block, a mounting groove and a U-shaped frame, and the bidirectional screw rod is installed in the built-in groove of the connecting frame through a bearing.

[0007] Preferably, a limiting block is sleeved on the outer side of the bidirectional screw rod, a handle is connected to one end of the bidirectional screw rod, and a mounting groove is provided inside the connecting frame.

[0008] Preferably, a U-shaped frame is provided on the inner side of the installation groove, and a limiting groove is provided on a side of the U-shaped frame close to the limiting block.

[0009] Preferably, the cleaning mechanism includes a motor, a cleaning brush, a movable plate and a screw, and the screw is installed in the middle of the bracket through a bearing.

[0010] Preferably, one end of the screw is connected to a motor, and the motor is located in a built-in groove of the connecting frame. A movable plate is sleeved on the outer side of the screw, and a cleaning brush is connected to the bottom of the movable plate through an electric push rod.

[0011] Preferably, the soot blowing mechanism comprises an air inlet pipe, a pulse solenoid valve, an air outlet pipe and a nozzle, and a pulse solenoid valve is installed in the built-in groove of the bracket.

[0012] Preferably, an air inlet pipe is connected to the top of the pulse solenoid valve, an air outlet pipe is connected to the bottom of the pulse solenoid valve, and nozzles distributed at intervals are connected to the bottom of the air outlet pipe.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. An installation mechanism is provided. The rotating handle drives the bidirectional screw to rotate, and then the bidirectional screw drives the limit blocks to move away from each other and disengage from the limit groove. Then the U-shaped frame is pulled downward to disengage the U-shaped frame from the installation groove. The roller and the detection head can be quickly removed from the railway rail flaw detector, thereby improving the convenience of the railway rail flaw detector.

[0015] 2. A cleaning mechanism and a soot blowing mechanism are provided. The air is first sucked into the air inlet pipe through the pulse solenoid valve, and then the air is transported to the nozzle through the air outlet pipe for spraying. The dust on the rail is first blown off, and then the motor drives the screw to rotate, and the moving plate drives the cleaning brush to move to one side. At the same time, the electric push rod pushes the cleaning brush downward, so that the cleaning brush fits on the rail and sweeps left and right, sweeping away the dirt and stone particles, which is convenient for cleaning the rail before detection, preventing the dirt and stone particles from affecting the detection results, and improving the accuracy of the detection results of the railway rail flaw detector. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the main cross-sectional structure of the installation mechanism of the utility model;

[0018] Figure 3This is a schematic diagram of the cross-sectional structure of the utility model from top view;

[0019] Figure 4 This is a schematic diagram of the side cross-sectional structure of the sootblowing mechanism of the utility model;

[0020] Figure 5 This is a schematic diagram of the three-dimensional main cross-sectional structure of the U-shaped frame of the utility model;

[0021] Figure 6 It is a schematic diagram of the three-dimensional structure of the nozzle of the utility model.

[0022] In the figure: 1. body; 2. handle; 3. display screen; 4. body; 5. telescopic rod; 6. mounting mechanism; 601. bidirectional screw; 602. limit slot; 603. handle; 604. limit block; 605. mounting slot; 606. U-shaped frame; 7. roller; 8. cleaning mechanism; 801. motor; 802. cleaning brush; 803. moving plate; 804. screw; 9. connecting frame; 10. electric push rod; 11. bracket; 12. soot blowing mechanism; 121. air inlet pipe; 122. pulse solenoid valve; 123. air outlet pipe; 124. nozzle; 13. wheel; 14. detection head. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-5 The utility model provides a technical solution: a railway rail flaw detector that is easy to replace the probe, comprising a car body 1 and a detection head 14, telescopic rods 5 are connected to both sides of the car body 1, one end of the telescopic rods 5 is connected to a connecting frame 9, a handle 2 is welded to one side of the car body 1, a body 4 is installed above the car body 1, a display screen 3 is provided above the body 4, a wheel 13 is provided below the car body 1, a mounting mechanism 6 is provided on the inner side of the connecting frame 9, a roller 7 is provided on the inner side of the mounting mechanism 6, the detection head 14 is located on one side of the mounting mechanism 6, and one side of the detection head 14 is connected to the body 4 through a connecting line, a bracket 11 is welded to one side of the connecting frame 9, a cleaning mechanism 8 is installed on the inner side of the bracket 11, an electric push rod 10 is connected to one side of the cleaning mechanism 8, and a soot blowing mechanism 12 is provided below the bracket 11 away from the cleaning mechanism 8.

[0025] according to Figure 1-5As shown, the mounting mechanism 6 includes a bidirectional screw 601, a limiting groove 602, a handle 603, a limiting block 604, a mounting groove 605 and a U-shaped frame 606. The bidirectional screw 601 is installed in the built-in groove of the connecting frame 9 through a bearing, the outer side of the bidirectional screw 601 is sleeved with the limiting block 604, one end of the bidirectional screw 601 is connected to the handle 603, the interior of the connecting frame 9 is provided with a mounting groove 605, the inner side of the mounting groove 605 is provided with a U-shaped frame 606, the U-shaped frame 606 is provided with a limiting groove 602 on the side close to the limiting block 604, the limiting block 604 is in an "L" shape, the limiting block 604 and the limiting groove 602 are in a snap-fit ​​structure, and the limiting block 604 and the bidirectional screw 601 are threadedly sleeved.

[0026] During specific implementation, when the roller 7 and the probe are aged or damaged and need to be replaced, the handle 603 can be rotated first to make the handle 603 drive the bidirectional screw 601 to rotate, and then the bidirectional screw 601 drives the limit blocks 604 to move away from each other and disengage from the limit groove 602, and then the U-shaped frame 606 is pulled downward to make the U-shaped frame 606 disengage from the installation groove 605, so that the roller 7 and the detection head 14 can be quickly removed from the railway rail flaw detector, thereby improving the convenience of the railway rail flaw detector.

[0027] according to Figure 1 , Figure 3 , Figure 4 and Figure 6 As shown, the cleaning mechanism 8 includes a motor 801, a cleaning brush 802, a movable plate 803 and a screw 804. The middle part of the bracket 11 is equipped with a screw 804 through a bearing. One end of the screw 804 is connected to the motor 801, and the motor 801 is located in the built-in groove of the connecting frame 9. The outer side of the screw 804 is sleeved with a movable plate 803. The lower part of the movable plate 803 is connected to the cleaning brush 802 through an electric push rod 10. The soot blowing mechanism 12 includes an air inlet pipe 121, a pulse electromagnetic Valve 122, air outlet pipe 123 and nozzle 124, a pulse solenoid valve 122 is installed in the built-in groove of the bracket 11, the upper part of the pulse solenoid valve 122 is connected with the air inlet pipe 121, the lower part of the pulse solenoid valve 122 is connected with the air outlet pipe 123, the lower part of the air outlet pipe 123 is connected with the nozzles 124 distributed at intervals, the movable plate 803 and the screw 804 are threadedly connected, sliding grooves are opened on both sides of the bracket 11, and the movable plate 803 and the sliding grooves are slidably connected.

[0028] During specific implementation, since there will be mud and dust on the railway rails, these mud and dust will increase the friction of the rails, and these mud and stones will adhere to the probe and affect the detection results. The pulse solenoid valve 122 can drive the air inlet pipe 121 to inhale air, and then the air is transported to the nozzle 124 through the air outlet pipe 123 for spraying, first blowing off the dust on the rails, and then the motor 801 drives the screw 804 to rotate, and then the moving plate 803 drives the cleaning brush 802 to move to one side, and at the same time the electric push rod 10 pushes the cleaning brush 802 downward, so that the cleaning brush 802 fits on the rails and sweeps left and right to sweep away the mud and stones, so as to facilitate the cleaning of the rails before detection, prevent mud and stones from affecting the detection results, and improve the accuracy of the detection results of the railway rail flaw detector.

[0029] Working principle: When using this railway rail flaw detector that is easy to replace the probe, first, the staff pushes the handle 2 to push the car body 1 onto the railway, and then adjusts the connecting frame 9 to a suitable position through the telescopic rod 5 to place the roller 7 on the rail. Then the staff pushes the car body 1 to move, so that the cleaning mechanism 8 and the soot blowing mechanism 12 clean the rail, and then the rail is ultrasonically detected by the detection head 14. When the ultrasonic wave encounters a crack or other defect, reflection or diffraction will occur, and the data will be transmitted to the body 4 through the connecting line. Finally, the data is displayed on the display screen 3. When the detection head 14 and the roller 7 are aged or damaged, the detection head 14 and the roller 7 can be removed through the installation mechanism 6, which improves the practicality and accuracy of the railway rail flaw detector. The content not described in detail in this description belongs to the existing technology known to professional and technical personnel in this field.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A railway rail flaw detector with easy probe replacement, comprising a vehicle body (1) and a probe head (14), characterized in that: Telescopic rods (5) are connected to both sides of the vehicle body (1), one end of the telescopic rods (5) is connected to a connecting frame (9), a handle (2) is welded to one side of the vehicle body (1), a body (4) is mounted above the vehicle body (1), a display screen (3) is mounted above the body (4), wheels (13) are mounted below the vehicle body (1), a mounting mechanism (6) is mounted on the inner side of the connecting frame (9), a roller (7) is mounted on the inner side of the mounting mechanism (6), the detection head (14) is located on one side of the mounting mechanism (6), and one side of the detection head (14) is connected to the body (4) via a connecting line, a bracket (11) is welded to one side of the connecting frame (9), a cleaning mechanism (8) is mounted on the inner side of the bracket (11), one side of the cleaning mechanism (8) is connected to an electric push rod (10), and a dust blowing mechanism (12) is mounted below the bracket (11) away from the cleaning mechanism (8).

2. The railway rail flaw detector with easy probe replacement according to claim 1, characterized in that: The mounting mechanism (6) comprises a bidirectional screw rod (601), a limiting groove (602), a handle (603), a limiting block (604), a mounting groove (605) and a U-shaped frame (606); the bidirectional screw rod (601) is mounted in the built-in groove of the connecting frame (9) via a bearing.

3. The railway rail flaw detector with easy probe replacement according to claim 2, characterized in that: The outer side of the bidirectional screw rod (601) is sleeved with a limit block (604), one end of the bidirectional screw rod (601) is connected to a handle (603), and a mounting groove (605) is provided inside the connecting frame (9).

4. The railway rail flaw detector with easy probe replacement according to claim 3, characterized in that: A U-shaped frame (606) is provided on the inner side of the installation groove (605), and a limiting groove (602) is provided on a side of the U-shaped frame (606) close to the limiting block (604).

5. The railway rail flaw detector with easy probe replacement according to claim 1, characterized in that: The cleaning mechanism (8) comprises a motor (801), a cleaning brush (802), a movable plate (803) and a screw (804); the screw (804) is mounted in the middle of the bracket (11) via a bearing.

6. The railway rail flaw detector with easy probe replacement according to claim 5, characterized in that: One end of the screw rod (804) is connected to a motor (801), and the motor (801) is located in a built-in groove of the connecting frame (9). A movable plate (803) is sleeved on the outer side of the screw rod (804), and a cleaning brush (802) is connected below the movable plate (803) via an electric push rod (10).

7. The railway rail flaw detector with easy probe replacement according to claim 1, characterized in that: The soot blowing mechanism (12) comprises an air inlet pipe (121), a pulse solenoid valve (122), an air outlet pipe (123) and a nozzle (124); the pulse solenoid valve (122) is installed in the built-in groove of the bracket (11).

8. The railway rail flaw detector with easy probe replacement according to claim 7, characterized in that: The pulse solenoid valve (122) is connected to an air inlet pipe (121) above, the pulse solenoid valve (122) is connected to an air outlet pipe (123) below, and the air outlet pipe (123) is connected to nozzles (124) distributed at intervals below.

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