A laser displacement monitor

Abstract

The present invention relates to the technical field of laser displacement monitors, and in particular to a laser displacement monitor, comprising an equipment frame, an adjustment mechanism fixedly connected to the equipment frame, an adjustment frame above the equipment frame, two rotating frames symmetrically connected and rotatably provided on the adjustment frame, a laser displacement sensor fixedly mounted on the lower inner wall of the rotating frame, a marking mechanism rotatably connected to the inner wall of one end of the rotating frame, a retractable mechanism rotatably provided on the rotating frame, and track frames on both sides of the equipment frame. By providing the track frames and the retractable mechanism, the electric track wheels on the two track frames can be inserted into the side walls of the track, thereby driving the laser displacement sensor to move on the track to cover more track areas. Compared with fixed laser displacement monitors, it can only monitor a fixed position or range and cannot dynamically adjust the position. By moving on the track, track status data of more areas can be obtained, thereby achieving comprehensive track monitoring.

Description

Technical Field

[0001] The present invention relates to the technical field of laser displacement monitors, and in particular to a laser displacement monitor. Background Art

[0002] A laser displacement monitor is a precision instrument that uses laser technology to measure the displacement, deformation, and position change of an object or surface relative to a sensor. It is widely used in many fields, including industry, manufacturing, and transportation. It enables high-precision, non-contact displacement measurement and offers advantages such as high sensitivity, fast response, and durability.

[0003] In the prior art, the document with publication number CN207688832U introduces a three-dimensional laser displacement meter rail monitor. When monitoring the dynamic lateral amplitude of the rail, the instrument installs the laser at the bottom of the pile so that it emits a laser beam to the target installed on the sleeper. When lateral amplitude occurs, the target and the laser will produce relative displacement based on the plane coordinate system of the X-axis and Y-axis. The processor in the target can demodulate this relative displacement and transmit it to the control box installed in the RTU to realize dual-axis deflection acquisition. At the same time, the laser monitor can also monitor the movement of the sleeper in the Z-axis direction. In addition, the instrument fixes the laser with eight set screws and can be adjusted without dead angles within the measuring range. It has the characteristics of easy on-site installation and streamlined structure. It is suitable for installation requirements in various special occasions, which can reduce costs and is suitable for mass production and sales promotion.

[0004] However, this existing monitoring method, which relies on fixed installations to monitor track, is suitable for monitoring short sections of track. However, for dynamic, wide-area monitoring of long tracks, it has several drawbacks. These include limiting the flexibility and adaptability of the equipment, increasing the complexity of manual operation and installation, resulting in low monitoring efficiency and potential disruption to rail transit, as well as requiring additional maintenance, which in turn increases costs.

[0005] In summary, the existing technology lacks dynamic monitoring technology for monitoring the activities of laser displacement monitors on tracks. Summary of the Invention

[0006] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a laser displacement monitor.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is: a laser displacement monitor, including an equipment frame, an adjustment mechanism is fixedly connected to the equipment frame, an adjustment frame is provided above the equipment frame, two rotating frames are symmetrically connected on the adjustment frame, a laser displacement sensor is fixedly installed on the inner wall of the lower side of the rotating frame, a marking mechanism is rotatably connected to the inner wall of one end of the rotating frame, a retracting mechanism is rotatably connected on the equipment frame, and track frames are provided on both sides of the equipment frame.

[0008] Preferably, the adjustment mechanism includes a motor A, which is fixedly connected to the inner wall of the equipment frame, and a bidirectional screw is fixedly connected to the output end of the motor A. The outer walls of both ends of the bidirectional screw are threadedly connected with adjustment blocks, and an adjustment rod is rotatably connected to the adjustment block, and the other end of the adjustment rod is rotatably connected to the inner wall of the adjustment frame.

[0009] Preferably, the inner wall of the adjustment frame is symmetrically structured and fixedly connected with two limit bars, a sliding rod is slidably provided on the limit bar, one end of the sliding rod is fixedly connected with a transmission rack, and the other end of the sliding rod is rotatably connected with a connecting rod, and the other end of the connecting rod is rotatably connected to the adjustment rod.

[0010] Preferably, a rotating shaft is fixedly connected to one end of the rotating frame, and the rotating shaft is rotatably connected to the adjusting frame. One end of the rotating shaft located inside the adjusting frame is fixedly connected to a transmission wheel, and the transmission wheel is meshed with a transmission rack for transmission. A liquid storage cavity is provided on the inner wall of the rotating frame, and a rubber plug is movably inserted at the opening at the top of the rotating frame.

[0011] Preferably, the marking mechanism includes a marking frame, which is rotatably connected to the inner wall of the rotating frame, one end of the marking frame is fixedly connected to a motor B, the motor B is fixedly connected to the rotating frame, one end of the marking frame is a hollow structure, one end of the marking frame is fixedly connected to a sponge pad, and the marking frame is provided with multiple liquid outlet holes at the position of the sponge pad.

[0012] Preferably, the marking frame is fixedly provided with an extrusion tube, the output end of the extrusion tube is communicated with the hollow inner wall of the marking frame, the input end of the extrusion tube is fixedly provided with a liquid guide tube, the other end of the liquid guide tube passes through the marking frame and is communicated with the liquid storage cavity in the rotating frame, one end of the extrusion tube is passed through and provided with a contact rod for sliding cooperation, the outer end of the contact rod is movably contacted with the inner wall of the rotating frame, the inner end of the contact rod is fixedly provided with an extrusion plug, the extrusion plug is slidably cooperated with the inner wall of the extrusion tube, a tension spring is fixedly provided on the extrusion plug, and the other end of the tension spring is fixedly connected to the inner wall of the extrusion tube.

[0013] Preferably, the retracting and extending mechanism includes a bidirectional worm, which is rotatably connected to the equipment frame, and worm wheels are meshingly provided at both ends of the bidirectional worm, which is rotatably connected to the equipment frame, and a driving wheel is fixedly connected to the other end of the worm wheel, and a gear A is fixedly connected to the middle of the bidirectional worm.

[0014] Preferably, one side of the track frame is rotatably connected to two electric track wheels, one side of the track frame is symmetrically structured and rotatably connected to a rotating rod, the other end of the rotating rod is rotatably connected to the equipment frame, and one end of the rotating rod connected to the equipment frame is fixedly connected to a driven wheel, and the driven wheel is meshed with the driving wheel for transmission.

[0015] Preferably, a push handle is rotatably connected to one side of the equipment frame, and a gear B is fixedly connected to one side of the push handle, and the gear B is meshed with the gear A for transmission.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. By installing a track frame and a retractable mechanism, the electric track wheels on the two track frames can be inserted into the track sidewalls, driving the laser displacement sensor to move along the track, covering more track area. Compared to fixed laser displacement monitors, which can only monitor a fixed position or range and cannot dynamically adjust their position, moving along the track can obtain track status data from more areas in real time, thus achieving comprehensive track monitoring. This approach is particularly advantageous for railway systems with long distances or complex sections. At the same time, driven by the retractable mechanism, the track frame can be moved to the bottom side of the equipment frame, making it easier to move the device on the ground when not in use.

[0018] 2. By providing an adjustment mechanism, the turret can be moved upward and rotated above the track, allowing the laser displacement sensor to monitor the track. At the same time, when an oncoming train is detected, the adjustment mechanism can automatically retract the turret, allowing the train to pass smoothly without collisions or impacts on the safe operation of the train due to equipment obstructing the track space. This improves the system's operating efficiency, reduces the possibility of human error, makes the monitoring process more accurate and smoother, and enables uninterrupted track monitoring, effectively improving the efficiency of track inspections. This ensures that no important monitoring data is missed, especially during continuous monitoring and maintenance.

[0019] 3. By setting a marking mechanism on the rotating frame, when the laser displacement sensor detects a problem with the track, the marking mechanism drives the marking frame to rotate while squeezing the paint in the extrusion tube onto the sponge pad and applying it to the side wall of the track for marking. This makes it easier for maintenance personnel to quickly locate and handle faults, reduces ineffective work, and ensures the efficiency and accuracy of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a laser displacement monitor according to the present invention;

[0021] Figure 2 This is a schematic structural diagram of an adjustment mechanism and other components of a laser displacement monitor according to the present invention;

[0022] Figure 3 It is a partial cross-sectional schematic diagram of the structure of an adjustment frame of a laser displacement monitor of the present invention;

[0023] Figure 4 A partial cross-sectional schematic diagram of a rotating frame structure of a laser displacement monitor of the present invention;

[0024] Figure 5 A partial cross-sectional schematic diagram of the marking mechanism structure of a laser displacement monitor of the present invention;

[0025] Figure 6 This is a schematic structural diagram of a retractable mechanism of a laser displacement monitor according to the present invention;

[0026] Figure 7 This is a schematic diagram of the track frame structure of a laser displacement monitor of the present invention;

[0027] Figure 8 This is a schematic diagram of the overall structure of a laser displacement monitor according to the present invention applied on a track.

[0028] The following are marked in the figure: 1. Equipment rack; 2. Adjustment mechanism; 3. Adjustment rack; 4. Rotating rack; 5. Laser displacement sensor; 6. Marking mechanism; 7. Retractable mechanism; 8. Track rack; 201. Motor A; 202. Bidirectional screw; 203. Adjustment block; 204. Adjustment rod; 301. Limiting bar; 302. Sliding rod; 303. Transmission rack; 304. Connecting rod; 401. Rotating shaft; 402. Transmission wheel; 403. Storage Liquid chamber; 404, rubber stopper; 601, marking frame; 602, motor B; 603, sponge pad; 604, liquid extrusion tube; 605, liquid guide tube; 606, contact rod; 607, extrusion plug; 608, tension spring; 701, bidirectional worm; 702, worm gear; 703, driving wheel; 704, gear A; 801, electric track wheel; 802, rotating rod; 803, driven wheel; 101, push handle; 102, gear B. DETAILED DESCRIPTION

[0029] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0030] like Figures 1-8The laser displacement monitor shown includes an equipment frame 1, an adjustment mechanism 2 is fixedly connected to the equipment frame 1, an adjustment frame 3 is provided above the equipment frame 1, and two rotating frames 4 are symmetrically connected on the adjustment frame 3, a laser displacement sensor 5 is fixedly installed on the inner wall of the lower side of the rotating frame 4, a marking mechanism 6 is rotatably connected to the inner wall of one end of the rotating frame 4, a retracting mechanism 7 is rotatably connected to the equipment frame 1, and track frames 8 are provided on both sides of the equipment frame 1.

[0031] like Figure 2 As shown, the adjustment mechanism 2 includes a motor A201, which is fixedly connected to the inner wall of the equipment frame 1. A bidirectional screw 202 is fixedly connected to the output end of the motor A201. Adjustment blocks 203 are threadedly connected to the outer walls of both ends of the bidirectional screw 202. An adjustment rod 204 is rotatably connected to the adjustment block 203, and the other end of the adjustment rod 204 is rotatably connected to the inner wall of the adjustment frame 3. The motor A201 drives the connected bidirectional screw 202 to rotate, so that the bidirectional screw 202 drives the two adjustment blocks 203 to move, thereby driving the adjustment frame 3 connected to the adjustment rod 204 upward through the adjustment block 203.

[0032] like Figure 3 As shown, the inner wall of the adjustment frame 3 is symmetrically structured and fixedly connected with two limit bars 301. A sliding rod 302 is slidably mounted on the limit bars 301. One end of the sliding rod 302 is fixedly connected to a transmission rack 303. The other end of the sliding rod 302 is rotatably connected to a connecting rod 304. The other end of the connecting rod 304 is rotatably connected to the adjustment rod 204. The adjustment rod 204 drives the sliding rod 302 to move via the connecting rod 304, causing the sliding rod 302 to move the connected transmission rack 303, thereby driving the rotation shaft 401 connected to the transmission wheel 402 to rotate, causing the rotating frame 4 connected to the rotating shaft 401 to rotate above the track.

[0033] like Figure 4 As shown, a rotating shaft 401 is fixedly connected to one end of the rotating frame 4, and the rotating shaft 401 is rotatably connected to the adjusting frame 3. A transmission wheel 402 is fixedly connected to one end of the rotating shaft 401 located inside the adjusting frame 3, and the transmission wheel 402 is engaged with the transmission rack 303 for transmission. A liquid storage cavity 403 is provided on the inner wall of the rotating frame 4, and a rubber plug 404 is movably inserted at the opening at the top of the rotating frame 4.

[0034] like Figure 5 As shown, the marking mechanism 6 includes a marking frame 601, which is rotatably connected to the inner wall of the rotating frame 4, and a motor B602 is fixedly connected to one end of the marking frame 601, and the motor B602 is fixedly connected to the rotating frame 4. One end of the marking frame 601 is a hollow structure, and a sponge pad 603 is fixedly connected to one end of the marking frame 601. A plurality of liquid outlet holes are provided at the position of the sponge pad 603 on the marking frame 601.

[0035] A liquid extrusion tube 604 is fixedly attached to the marking frame 601. The output end of the liquid extrusion tube 604 communicates with the hollow inner wall of the marking frame 601. A liquid guide tube 605 is fixedly attached to the input end of the liquid extrusion tube 604. The other end of the liquid guide tube 605 passes through the marking frame 601 and communicates with the liquid storage chamber 403 within the rotating frame 4. A contact rod 606 is slidably mounted on one end of the liquid extrusion tube 604. The outer end of the contact rod 606 is movably engaged with the inner wall of the rotating frame 4. An extrusion plug 607 is fixedly attached to the inner end of the contact rod 606. The extrusion plug 607 slidably engages with the inner wall of the liquid extrusion tube 604. A tension spring 608 is fixedly attached to the extrusion plug 607. The other end of the tension spring 608 is fixedly connected to the inner wall of the liquid extrusion tube 604. One-way valves are installed in both the input and output ends of the liquid extrusion tube 604. The motor B602 is used to drive the marking frame 601 to rotate downward. At this time, the contact rod 606 will contact the inner wall of the rotating frame 4, so that the contact rod 606 drives the extrusion plug 607 to move, thereby squeezing the pigment in the extrusion tube 604 through the inner wall of the marking frame 601 into the sponge pad 603, and then smearing it on the side wall of the track through the sponge pad 603 for marking. When the marking frame 601 rotates and resets, the extrusion plug 607 will be reset under the action of the tension spring 608. At this time, the pigment in the liquid storage chamber 403 is sucked into the extrusion tube 604 through the liquid guide tube 605.

[0036] like Figure 6 As shown, the retracting and extending mechanism 7 includes a bidirectional worm 701, which is rotatably connected to the equipment frame 1. Both ends of the bidirectional worm 701 are meshingly connected with worm wheels 702. The worm wheel 702 is rotatably connected to the equipment frame 1, and the other end of the worm wheel 702 is fixedly connected to a driving wheel 703. The middle part of the bidirectional worm 701 is fixedly connected to a gear A704.

[0037] like Figure 7 As shown, one side of the track frame 8 is rotatably connected to two electric track wheels 801. A rotating rod 802 is rotatably connected to one side of the track frame 8 in a symmetrical structure. The other end of the rotating rod 802 is rotatably connected to the equipment frame 1. The end of the rotating rod 802 connected to the equipment frame 1 is fixedly connected to a driven wheel 803. The driven wheel 803 is meshed with the driving wheel 703 for transmission. The electric track wheels 801 are adapted to the side wall of the track.

[0038] By setting up the track frame 8 and the retracting and extending mechanism 7, the electric track wheels 801 on the two track frames 8 can be inserted into the side walls of the track, thereby driving the laser displacement sensor 5 to move on the track to cover more track areas. Compared with fixed laser displacement monitors, it can only monitor a fixed position or range and cannot dynamically adjust the position. By moving on the track, track status data of more areas can be obtained in real time, thereby achieving comprehensive track monitoring. This method has greater advantages, especially for railway systems with long distances or complex sections. At the same time, driven by the retracting and extending mechanism 7, the track frame 8 is moved to the lower side of the equipment frame 1, which is convenient for moving the device on the ground when not in use.

[0039] like Figure 2 As shown, a handle 101 is rotatably connected to one side of the equipment frame 1. A gear B102 is fixedly connected to one side of the handle 101, meshing with gear A704. A radar sensor is mounted on the equipment frame 1 to monitor incoming trains and control the retraction of the rotating frame 4 to allow smooth passage. A bidirectional worm 701 rotates the connected gear A704, causing gear A704 to drive the handle 101, which is connected to gear B102, to level.

[0040] Working principle: When laser displacement monitoring of the track is required, the push handle 101 is first used to push the device to the track, and then the device is placed between the two tracks. Then, the bidirectional worm 701 is rotated to drive the connected gear A704 to rotate, so that the gear A704 drives the push handle 101 connected to the gear B102 to be leveled.

[0041] At the same time, the bidirectional worm 701 drives the two worm wheels 702 to rotate, so that the worm wheels 702 drive the driving wheel 703 to rotate. At this time, the driving wheel 703 drives the rotating rod 802 connected to the two driven wheels 803 to rotate, so that the electric track wheels 801 at both ends of the track frame 8 can be inserted into the inner wall of the track, and then the electric track wheels 801 can drive the device to move on the track;

[0042] Then, the motor A201 is used to drive the connected bidirectional screw rod 202 to rotate, so that the bidirectional screw rod 202 drives the two adjustment blocks 203 to move, thereby driving the adjustment frame 3 connected to the adjustment rod 204 to move upward through the adjustment block 203. At the same time, the adjustment rod 204 will drive the sliding rod 302 to move through the connecting rod 304, so that the sliding rod 302 drives the connected transmission rack 303 to move, thereby driving the rotating shaft 401 connected to the transmission wheel 402 to rotate, so that the rotating frame 4 connected to the rotating shaft 401 rotates to the top of the track, and then the track is monitored by the laser displacement sensor 5;

[0043] When a problem with the track is detected, the motor B602 is used to drive the marking frame 601 to rotate downward. At this time, the contact rod 606 will contact the inner wall of the rotating frame 4, so that the contact rod 606 drives the extrusion plug 607 to move, thereby squeezing the pigment in the extrusion tube 604 through the inner wall of the marking frame 601 into the sponge pad 603, and then smearing it on the side wall of the track through the sponge pad 603 for marking. When the marking frame 601 rotates and resets, the extrusion plug 607 will be reset under the action of the tension spring 608. At this time, the pigment in the liquid storage chamber 403 is sucked into the extrusion tube 604 through the liquid guide tube 605 for standby use.

[0044] 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.

[0045] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser displacement monitor, comprising a device frame (1), characterized in that: An adjusting mechanism (2) is fixedly connected to the equipment frame (1), and the adjusting mechanism (2) includes a motor A (201). The motor A (201) is fixedly connected to the inner wall of the equipment frame (1). A bidirectional screw rod (202) is fixedly connected to the output end of the motor A (201). Both ends of the outer wall of the bidirectional screw rod (202) are threadedly connected to an adjusting block (203). An adjusting rod (204) is rotatably connected to the adjusting block (203). The other end of the adjusting rod (204) is rotatably connected to the inner wall of the adjusting frame (3). An adjusting frame (3) is arranged above the equipment frame (1). The inner wall of the adjusting frame (3) is fixedly connected with two limit bars (301) in a symmetrical structure. The limit bar (301) is provided with a sliding rod (302) in a sliding cooperation manner, one end of the sliding rod (302) is fixedly connected to a transmission rack (303), the other end of the sliding rod (302) is rotatably connected to a connecting rod (304), the other end of the connecting rod (304) is rotatably connected to the adjustment rod (204), the adjustment frame (3) is provided with two rotating frames (4) in a symmetrical structure, the lower inner wall of the rotating frame (4) is fixedly mounted with a laser displacement sensor (5), the inner wall of one end of the rotating frame (4) is rotatably connected to a marking mechanism (6), the equipment frame (1) is rotatably connected to a retracting mechanism (7), and track frames (8) are provided on both sides of the equipment frame (1).

2. The laser displacement monitor according to claim 1, characterized in that: One end of the rotating frame (4) is fixedly connected to a rotating shaft (401), and the rotating shaft (401) is rotatably connected to the adjustment frame (3). One end of the rotating shaft (401) located inside the adjustment frame (3) is fixedly connected to a transmission wheel (402), and the transmission wheel (402) is meshed with a transmission rack (303) for transmission. A liquid storage cavity (403) is provided on the inner wall of the rotating frame (4), and a rubber plug (404) is movably inserted at the top opening of the rotating frame (4).

3. The laser displacement monitor according to claim 2, characterized in that: The marking mechanism (6) comprises a marking frame (601), the marking frame (601) being rotatably connected to the inner wall of the rotating frame (4), one end of the marking frame (601) being fixedly connected to a motor B (602), the motor B (602) being fixedly connected to the rotating frame (4), one end of the marking frame (601) being hollow, one end of the marking frame (601) being fixedly connected to a sponge pad (603), and a plurality of liquid outlet holes being provided on the marking frame (601) at the position of the sponge pad (603).

4. The laser displacement monitor according to claim 3, characterized in that: The marking frame (601) is fixedly provided with an extrusion tube (604), the output end of the extrusion tube (604) is connected to the hollow inner wall of the marking frame (601), the input end of the extrusion tube (604) is fixedly provided with a liquid guide tube (605), the other end of the liquid guide tube (605) passes through the marking frame (601) and is connected to the liquid storage chamber (403) in the rotating frame (4), one end of the extrusion tube (604) is penetrated by a contact rod (606) which is slidably fitted, the outer end of the contact rod (606) is movably contacted with the inner wall of the rotating frame (4), the inner end of the contact rod (606) is fixedly provided with an extrusion plug (607), the extrusion plug (607) is slidably fitted with the inner wall of the extrusion tube (604), the extrusion plug (607) is fixedly provided with a tension spring (608), the other end of the tension spring (608) is fixedly provided with the inner wall of the extrusion tube (604).

5. The laser displacement monitor according to claim 1, characterized in that: The retracting and extending mechanism (7) comprises a bidirectional worm (701), the bidirectional worm (701) being rotatably connected to the equipment frame (1), worm wheels (702) being meshed and driven at both ends of the bidirectional worm (701), the worm wheel (702) being rotatably connected to the equipment frame (1), a driving wheel (703) being fixedly connected to the other end of the worm wheel (702), and a gear A (704) being fixedly connected to the middle of the bidirectional worm (701).

6. The laser displacement monitor according to claim 5, characterized in that: One side of the track frame (8) is rotatably connected to two electric track wheels (801), one side of the track frame (8) is symmetrically structured and rotatably connected to a rotating rod (802), the other end of the rotating rod (802) is rotatably connected to the equipment frame (1), and one end of the rotating rod (802) connected to the equipment frame (1) is fixedly connected to a driven wheel (803), and the driven wheel (803) is meshed with the driving wheel (703) for transmission.

7. The laser displacement monitor according to claim 6, characterized in that: A push handle (101) is rotatably connected to one side of the equipment frame (1), and a gear B (102) is fixedly connected to one side of the push handle (101). The gear B (102) is meshed with the gear A (704) for transmission.

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