Optical calibration and detection device for water tank volume of a three-wheel fire engine

Abstract

This application relates to the field of detection technology, specifically an optical calibration and detection device for the volume of a water tank in a three-wheeled fire truck. It includes a base with a laser rangefinder mounted on it, and a tank wall convex / concave area marking component. The marking component comprises a support plate and a cylinder. An unwinding roller and a winding roller are rotatably mounted at both ends of the support plate. A base paper is wound around both the unwinding and winding rollers, and multiple marking papers are pasted on the base paper. This invention utilizes the tank wall convex / concave area marking component to automatically paste a marking paper at the detected protrusion or depression on the inner wall of the tank. During subsequent repairs, repair personnel can quickly locate the defect location directly based on the marking paper pasted on the inner wall of the tank, thereby improving repair efficiency and positioning accuracy, and avoiding missed repair points due to inconspicuous defect locations.

Description

Technical Field

[0001] This application relates to the field of testing technology, and in particular to an optical calibration and testing device for the volume of water tanks in three-wheeled fire trucks. Background Technology

[0002] The water tanker of a three-wheeled fire truck is a special container installed on the truck for storing and transporting firefighting water. It is a core firefighting component of the three-wheeled fire truck. During the manufacturing process, the water tanker's volume needs to be optically calibrated and tested to ensure that the actual capacity matches the design standard value. This prevents insufficient water supply due to manufacturing deviations or tank deformation, which could affect firefighting operations.

[0003] In existing technologies, when optically calibrating and testing the water tank of a three-wheeled fire truck, a laser rangefinder is usually used to measure the depth and radius of the tank, and then its volume is calculated.

[0004] However, in some cases, it is necessary to use a laser rangefinder to conduct multi-point inspections on the inner wall of the tank to determine whether there are any protrusions or dents. If protrusions or dents are found, the tank needs to be repaired. However, in actual repairs, because protrusions or dents on the inner wall of the tank are often not obvious, repair personnel find it difficult to quickly and intuitively determine their specific location and extent, thus affecting repair efficiency. Inaccurate positioning may even lead to missed defects, resulting in inaccurate tank volume calibration results, which in turn affects the fire-fighting performance and overall safety of the three-wheeled fire truck. Summary of the Invention

[0005] Therefore, it is necessary to provide an optical calibration and testing device for the water tank volume of a three-wheeled fire truck to address the aforementioned technical problems.

[0006] An optical calibration and detection device for the volume of a water tank in a three-wheeled fire truck includes a base, on which a laser rangefinder is mounted, and on which a marking component for the concave and convex areas of the tank wall is mounted.

[0007] The can wall concave-convex area marking assembly includes a support plate and a cylinder. The support plate has an unwinding roller and a winding roller rotatably mounted at both ends. The winding roller and the unwinding roller are wound together with a base paper. Multiple marking papers are pasted on the base paper. The support plate has a slot for the base paper to pass through and for limiting its side. The cylinder has a clamping and paper-removing structure for removing the marking paper from the base paper. The cylinder also has an elastic extrusion structure for pressing the marking paper against the inner wall of the can.

[0008] Preferably, the base is provided with an electric chuck, and the electric chuck is provided with a plurality of positioning blocks that can slide radially simultaneously.

[0009] Preferably, the base is provided with a crossbeam, the crossbeam is provided with a second lead screw linear module, the movable end of the second lead screw linear module is fixedly provided with a slide block, the slide block is provided with a rack that slides vertically, the bottom of the rack is fixedly connected to a mounting shell, the bottom of the mounting shell is rotatably provided with a rotating frame, the support plate is fixedly connected to the rotating frame, and the laser rangefinder is rotatably mounted on the support plate.

[0010] Preferably, a gear is rotatably mounted on the slide block, the gear meshes with a rack, a motor five is mounted on the slide block to drive the gear to rotate, a motor one is mounted on the mounting housing to drive the rotating frame to rotate, and a motor two is mounted on the support plate to drive the laser rangefinder to rotate.

[0011] Preferably, one end of both the unwinding roller and the winding roller is fixedly fitted with a pulley, and the two pulleys are connected by a belt drive. The support plate is provided with a motor for driving the unwinding roller to rotate.

[0012] Preferably, a fixed plate is fixedly provided on the rotating frame, and two guide rods are slidably passed through the fixed plate in the transverse direction. An adjusting plate is fixedly connected to the ends of the two guide rods. A cylinder is fixedly provided on the fixed plate, and the piston end of the cylinder is fixedly connected to one side of the adjusting plate. The cylinder is rotatably mounted on the adjusting plate, and a motor is provided on the adjusting plate to drive the cylinder to rotate.

[0013] Preferably, the edge-clamping paper-picking structure includes a slide fixedly mounted on the cylinder. The slide is provided with a lead screw linear module. The lead screw linear module is provided with two movable ends that can move simultaneously toward or away from each other. Each movable end is fixedly provided with an adjusting arm. One end of the adjusting arm is fixedly connected to a lifting plate. A pressure rod is rotatably mounted on the lifting plate. The lifting plate is provided with a motor for driving the pressure rod to rotate. Both ends of the marking paper are provided with glue-free protrusions.

[0014] Preferably, the elastic extrusion structure includes a second cylinder fixedly mounted on the cylinder body, a displacement frame fixedly connected to the piston end of the second cylinder, a flipping rod rotatably mounted on the displacement frame, and an elastic pad fixedly mounted at one end of the flipping rod.

[0015] Preferably, the cylinder is provided with a marking and differentiation auxiliary component;

[0016] The marking and differentiation auxiliary component includes multiple slip rings evenly distributed circumferentially along the inner cavity of the cylinder. One end of each slip ring is vertically slidably fitted with a limiting rod and a sliding rod. The bottom of the limiting rod and the sliding rod are fixedly connected to the inner wall of the cylinder. Each slip ring is detachably fitted with a marker pen, and each marker pen is detachably fitted with an mounting ring. A connecting rod is rotatably mounted on the mounting ring. A cover plate is rotatably mounted on the end of the connecting rod away from the mounting ring. The cover plate is slidably mounted laterally at the bottom of the inner cavity of the cylinder. Multiple through holes are circumferentially opened at the bottom of the cylinder, and each through hole corresponds to a cover plate. A spring is fitted on the sliding rod. One end of the spring is fixedly connected to the slip ring, and the other end is fixedly connected to the end of the sliding rod. A rotating plate is rotatably mounted at the center of the top of the cylinder. A cylinder is fixedly mounted on the rotating plate. A motor is mounted on the cylinder to drive the rotating plate to rotate.

[0017] Preferably, the displacement frame is equipped with a motor 7 for driving the rotating rod to rotate.

[0018] The beneficial effects of this invention are as follows:

[0019] 1. The optical calibration and detection device for the water tank volume of a three-wheeled fire truck as described in this invention utilizes a tank wall concave-convex area marking component. Whenever a protrusion or depression is detected on the inner wall of the tank, a marking paper is automatically pasted at that location. During subsequent repairs, repair personnel can directly locate the defect location by referring to the marking paper pasted on the inner wall of the tank, thereby improving repair efficiency and positioning accuracy, and avoiding the omission of repair points due to the inconspicuous location of the defect.

[0020] Furthermore, compared to inkjet marking, this method uses individually pasted marking sheets to mark defects. Each defect is marked with a separate sheet, and the markings are independent of each other. Once a defect is repaired, the marking sheet can be removed, achieving "repair one, remove one sheet." This avoids the problem of difficulty distinguishing between repaired and unrepaired areas when multiple ink dots are present simultaneously, effectively preventing confusion. Even with easily erasable ink, multiple ink dots can easily become blurred or fall off during container transport or storage due to scratches and moisture, further increasing the difficulty of identification. This method, using pasted marking sheets, provides more secure and clear markings that remain stably until the corresponding defect is repaired.

[0021] 2. The optical calibration and detection device for the water tank volume of a three-wheeled fire truck described in this invention utilizes marking to distinguish auxiliary components. Based on the type of defect on the inner wall of the tank, two colored dots are left on marking paper using a marker. By combining the colors of these two dots, repair personnel can quickly determine whether the defect is a convex or concave shape and its severity, thereby developing a more reasonable repair plan and improving repair efficiency.

[0022] In addition, when the marker is not marking, it is inside the barrel and the through hole is covered by the cover plate, which seals and protects the marker tip, preventing it from drying out or becoming contaminated due to prolonged exposure to air, and ensuring smooth ink flow and clear markings the next time it is used for marking.

[0023] Furthermore, the motor can drive the flipping rod to rotate, thereby changing the angle of the elastic pad and aligning it with the end face or side of the cylinder. In this way, when the marker pen extends to mark, the elastic pad will not interfere with its normal operation; when the marker pen retracts, the elastic pad can return to the side of the marking paper and continue to press and adhere the marking paper, thus ensuring that the marking and pasting processes do not interfere with each other and are stably connected. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the complete three-dimensional structure of the present invention;

[0025] Figure 2 A three-dimensional structural diagram of the marking component for the concave and convex areas of the tank wall extending into the tank body;

[0026] Figure 3 for Figure 2 Enlarged view of a portion of point A in the middle;

[0027] Figure 4 This is a schematic diagram of the three-dimensional structure at the support plate.

[0028] Figure 5 for Figure 4 Enlarged view of a section at point B in the middle;

[0029] Figure 6 This is a three-dimensional structural diagram of the fixed plate (the connection between the fixed plate and the rotating frame is hidden).

[0030] Figure 7 This is a schematic diagram of the three-dimensional structure of the rotating frame;

[0031] Figure 8 This is a schematic diagram of the internal three-dimensional structure of the cylinder;

[0032] Figure 9 A three-dimensional structural diagram of the interior of the cylinder from another perspective;

[0033] Figure 10 for Figure 9 Enlarged view of a section at point C;

[0034] Figure 11 for Figure 9 Enlarged view of a section at point D.

[0035] In the diagram: 1. Electric chuck; 2. Crossbeam; 3. Base; 4. Slide; 5. Rack; 6. Mounting housing; 7. Motor 1; 8. Rotating frame; 9. Support plate; 10. Laser rangefinder; 11. Motor 2; 12. Motor 3; 13. Belt; 14. Unwind roller; 15. Adjusting plate; 16. Rewind roller; 17. Motor 4; 18. Cylinder; 19. Pulley; 20. Bottom paper; 21. Guide rod; 22. Cylinder 1; 23. Fixing plate; 24. Marking paper; 25. Cylinder 2; 26. Slide... 27. Lead screw linear module one; 28. Elastic pad; 29. ​​Adjusting arm; 30. Motor five; 31. Gear; 32. Motor six; 33. Cylinder three; 34. Rotating plate; 35. Flipping rod; 36. Through hole; 37. Motor seven; 38. Displacement frame; 39. Limiting rod; 40. Sliding rod; 41. Spring; 42. Slip ring; 43. Marker pen; 44. Edge lifting plate; 45. Motor eight; 46. Pressure rod; 47. Lead screw linear module two; 48. Mounting ring; 49. Connecting rod; 50. Cover plate. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0037] Example 1:

[0038] like Figures 1-11 As shown, an optical calibration and detection device for the water tank volume of a three-wheeled fire truck includes a base 3, a laser rangefinder 10 mounted on the base 3, and a tank wall concave-convex area marking component mounted on the base 3.

[0039] The can wall concave and convex area marking assembly includes a support plate 9 and a cylinder 18. The support plate 9 has an unwinding roller 14 and a winding roller 16 rotatably mounted at both ends. The winding roller 16 and the unwinding roller 14 are wound together with a base paper 20. Multiple marking papers 24 are pasted on the base paper 20. The support plate 9 has a slot for the base paper 20 to pass through and for limiting its side. The cylinder 18 has a clamping paper-removing structure for removing the marking papers 24 from the base paper 20. The cylinder 18 also has an elastic extrusion structure for pressing the marking papers 24 against the inner wall of the can.

[0040] In this embodiment, as Figure 2 As shown, the base 3 is equipped with an electric chuck 1, and the electric chuck 1 is equipped with multiple positioning blocks that can slide radially simultaneously.

[0041] like Figure 3 and Figure 7As shown, a crossbeam 2 is provided on the base 3, and a lead screw linear module 47 is provided on the crossbeam 2. A slide block 4 is fixedly provided at the moving end of the lead screw linear module 47. A rack 5 is slidably provided on the slide block 4 along the vertical direction. A mounting shell 6 is fixedly connected to the bottom of the rack 5. A rotating frame 8 is rotatably provided at the bottom of the mounting shell 6. A support plate 9 is fixedly connected to the rotating frame 8. The laser rangefinder 10 is rotatably mounted on the support plate 9.

[0042] like Figure 3 and Figure 7 As shown, a gear 31 is rotatably mounted on the slide block 4, and the gear 31 meshes with the rack 5. The slide block 4 is equipped with a motor 30 for driving the gear 31 to rotate. The mounting shell 6 is equipped with a motor 7 for driving the rotating frame 8 to rotate. The support plate 9 is equipped with a motor 11 for driving the laser rangefinder 10 to rotate.

[0043] like Figure 6 and Figure 7 As shown, pulleys 19 are fixedly fitted at one end of both the unwinding roller 14 and the winding roller 16. The two pulleys 19 are connected by a belt 13. A motor 12 for driving the unwinding roller 14 to rotate is provided on the support plate 9.

[0044] like Figure 6 and Figure 7 As shown, a fixed plate 23 is fixedly installed on the rotating frame 8. Two guide rods 21 slide horizontally through the fixed plate 23. An adjusting plate 15 is fixedly connected to the ends of the two guide rods 21. A cylinder 22 is fixedly installed on the fixed plate 23. The piston end of the cylinder 22 is fixedly connected to one side of the adjusting plate 15. The cylinder 18 is rotatably mounted on the adjusting plate 15. A motor 17 for driving the cylinder 18 to rotate is installed on the adjusting plate 15.

[0045] like Figure 4 , Figure 5 , Figure 9 As shown, the edge-clamping paper-picking structure includes a slide table 26 fixedly mounted on the cylinder 18. The slide table 26 is provided with a lead screw linear module 27. The lead screw linear module 27 is provided with two movable ends that can move simultaneously toward or away from each other. Each movable end is fixedly provided with an adjusting arm 29. One end of the adjusting arm 29 is fixedly connected to a lifting plate 44. A pressure rod 46 is rotatably mounted on the lifting plate 44. The lifting plate 44 is provided with a motor 45 for driving the pressure rod 46 to rotate. The two ends of the marking paper 24 are provided with glue-free protrusions.

[0046] like Figure 9 As shown, the elastic extrusion structure includes a second cylinder 25 fixedly mounted on the cylinder 18. A displacement frame 38 is fixedly connected to the piston end of the second cylinder 25. A flipping rod 35 is rotatably mounted on the displacement frame 38. An elastic pad 28 is fixedly mounted on one end of the flipping rod 35.

[0047] Specifically, this embodiment is applied to the optical calibration and testing of the cylindrical water tank of a three-wheeled fire truck.

[0048] First, the tank is placed on the electric chuck 1. Multiple positioning blocks on the electric chuck 1 move synchronously in the radial direction to clamp the outer wall of the tank, so that the axis of the tank coincides with the axis of the electric chuck 1.

[0049] In the initial state, the transmitting end of the laser rangefinder 10 is vertically downward. The slide block 4 is moved laterally by the lead screw linear module 47, so that the transmitting end is aligned with the upper edge of the tank and the first distance value is measured; then it is moved laterally until the transmitting end is aligned with the bottom surface of the inner cavity of the tank and the second distance value is measured. The difference between the two distance values ​​is the depth of the tank.

[0050] Next, slide block 4 is moved again so that the laser rangefinder 10 is positioned at the center of the tank, with the transmitting end coinciding with the tank's axis. Then, motor 5 30 drives gear 31 to rotate, causing rack 5 to slide downwards, extending the laser rangefinder 10 into the tank's inner cavity. Motor 2 11 then drives the laser rangefinder 10 to rotate 90 degrees, bringing the transmitting end to a horizontal position. The distance from the transmitting end to the inner wall of the tank is measured. Combined with the length of the laser rangefinder 10 itself, the inner diameter of the tank can be calculated, and the tank volume can be determined and recorded, completing the optical calibration of the tank volume.

[0051] Furthermore, when it is necessary to detect whether there are depressions or protrusions on the inner wall of the tank, the rotating frame 8 can be rotated by motor 7, thereby rotating the laser rangefinder 10. During the rotation, if the value measured by the laser rangefinder 10 does not change, it indicates that the inner wall of the tank is relatively flat in the circumferential direction at that height, without obvious protrusions or depressions; if the value increases, it indicates that the distance between the inner wall and the laser rangefinder 10 at that point has increased, indicating that there is a depression at that location; if the value decreases, it indicates that the inner wall is closer to the laser rangefinder 10 at that point, indicating that there is a protrusion at that location. In addition, during the rotation of the laser rangefinder 10, it can also be driven to rise and fall, thereby realizing multi-point continuous scanning of different height positions on the inner wall of the tank, and thus more comprehensively judging the overall shape and deformation of the inner wall of the tank.

[0052] When a dent or protrusion is detected on the inner wall of the tank, the system first records the location of the defect. Then, the unwinding roller 14 is rotated by motor 312, which, under the transmission of pulley 19 and belt 13, makes the take-up roller 16 rotate synchronously, thereby achieving the conveying effect of the base paper 20. Whenever a piece of marking paper 24 moves between the two adjusting arms 29, the base paper 20 stops conveying. Cylinder 122 drives the adjusting plate 15 to move laterally, so that the two edge-lifting plates 44 simultaneously adhere to the surface of the base paper 20. Then, the lead screw linear module 27 is activated, so that the two adjusting arms 29 move simultaneously and move closer to each other. The two edge-lifting plates 44 will contact the glue-free protrusions at both ends of the marking paper 24 respectively. The glue-free protrusions at both ends of the marking paper 24 are lifted up by the scraping of the edge-lifting plates 44. Then, the pressure rods 46 on both sides are rotated simultaneously by motor 845 on both sides, and the glue-free protrusions of the marking paper 24 are pressed onto the edge-lifting plates 44 by the pressure rods 46. Next, the cylinder 22 drives the side plate 44 away from the base paper 20, thereby tearing the marking paper 24 off the base paper 20.

[0053] Next, the cylinder 18 is rotated 180 degrees by the motor 417, so that the glued side of the torn-off marking paper 24 faces the inner wall of the can. Then, the marking paper 24 is aligned with the defect area by driving the rotating frame 8 to rotate and lift. Then, the marking paper 24 is moved laterally by the cylinder 122, and the elastic pad 28 is aligned with the non-glued side of the marking paper 24.

[0054] Once the edge-lifting plate 44 abuts against the inner wall of the tank, cylinder 25 moves the elastic pad 28, pressing the main body of the marking paper 24 against the inner wall of the tank. Because the elastic pad 28 is elastic, it can adapt to the unevenness of the defect, ensuring a tight fit between the marking paper 24 and the inner wall of the tank. Simultaneously, the pressure rods 46 on both sides release the ends of the marking paper 24, and then it can be reset.

[0055] Repeat the above operation. Whenever a protrusion or dent is detected on the inner wall of the tank, a marking paper 24 is pasted at that location. During subsequent repairs, the repair personnel can quickly find the defect location by directly referring to the marking paper pasted on the inner wall of the tank, thereby improving repair efficiency and positioning accuracy, and avoiding missing repair points due to the inconspicuous location of the defect.

[0056] Furthermore, compared to inkjet marking, this method uses individually pasted marking sheets 24 to mark defects. Each defect is marked with a separate sheet of marking paper 24, and the markings are independent of each other. During repair, the marking paper 24 can be removed after each defect is repaired, achieving "repair one, remove one sheet." This avoids the problem of difficulty distinguishing between repaired and unrepaired areas when multiple ink dots are present simultaneously, effectively preventing confusion. Even with easily erasable ink, multiple ink dots can easily become blurred or fall off during container transport or storage due to scratches or moisture, further increasing the difficulty of identification. This method, using pasted marking sheets 24, provides more secure and clear markings that can be stably retained until the corresponding defect is repaired.

[0057] In addition, during the pasting process, the elastic pad 28 adapts to the unevenness of the inner wall of the can and ensures that the marking paper adheres tightly, further ensuring the firmness of the marking.

[0058] Example 2:

[0059] like Figures 8-11 As shown, the cylinder 18 is provided with a marking and differentiation auxiliary component;

[0060] The marking and differentiation auxiliary components include multiple slip rings 42 evenly distributed circumferentially along the inner cavity of the cylinder 18. One end of each slip ring 42 is vertically slidably fitted with a limiting rod 39 and a sliding rod 40. The bottoms of the limiting rod 39 and the sliding rod 40 are fixedly connected to the inner wall of the cylinder 18. Each slip ring 42 is detachably equipped with a marker pen 43, and each marker pen 43 is a different color. A mounting ring 48 is detachably fitted onto each marker pen 43. A connecting rod 49 is rotatably mounted on the mounting ring 48, and a cover plate is rotatably mounted on the end of the connecting rod 49 away from the mounting ring 48. 50. The cover plate 50 is slidably disposed at the bottom of the inner cavity of the cylinder 18. Multiple through holes 36 are opened circumferentially at the bottom of the cylinder 18. Each through hole 36 corresponds to a cover plate 50. A spring 41 is sleeved on the slide rod 40. One end of the spring 41 is fixedly connected to the slip ring 42, and the other end is fixedly connected to the end of the slide rod 40. A rotating plate 34 is rotatably disposed at the center of the top of the cylinder 18. A cylinder 33 is fixedly disposed on the rotating plate 34. A motor 32 is disposed on the cylinder 18 to drive the rotating plate 34 to rotate.

[0061] like Figure 8 As shown, the displacement frame 38 is equipped with a motor 37 for driving the rotating rod 35 to rotate.

[0062] Specifically, in the above embodiments, although the location of defects on the inner wall of the tank can be marked by pasting marking paper 24, since the color and style of each marking paper 24 are completely identical, when subsequent repair personnel look for defects based on the marking paper 24, if the defect itself is not obvious, it is difficult to quickly identify whether the place is raised or sunken, and it is also difficult to intuitively judge the approximate severity of the defect, thereby affecting the reasonable formulation of the repair plan and reducing the repair efficiency to a certain extent.

[0063] Therefore, in order to solve the above problems, the working principle of this embodiment is as follows:

[0064] Since each marker 43 has a different color, two colors can be used to represent depressions and bumps respectively, while the remaining colors are used to indicate the severity of the defect.

[0065] Whenever it is necessary to remove the marking paper 24 from the base paper 20, the marking paper 24 will be aligned with the end face of the through hole 36 on the cylinder 18. At this time, the system will use motor six 32 to drive the rotating plate 34 to rotate according to the recorded defect type, so that cylinder three 33 moves to the corresponding color marker pen 43, and the piston end of cylinder three 33 is aligned with the end of the marker pen 43.

[0066] Next, the piston end of cylinder 33 extends and presses the corresponding end of marker 43, causing slip ring 42 to slide along limit rod 39, and the tip of marker 43 approaches the corresponding through hole 36. When marker 43 moves, it drives connecting rod 49 to rotate through mounting ring 48, and connecting rod 49 drives cover plate 50 to slide at the bottom of inner cavity of cylinder 18, so that through hole 36 is no longer covered by cover plate 50. At this time, the tip of marker 43 can extend through through hole 36 and contact the non-adhesive surface of marker paper 24 to be torn off, thus leaving the first colored dot on marker paper 24.

[0067] Subsequently, the piston end of cylinder 33 retracts, and marker 43 returns to its original position under the action of spring 41. Next, depending on the severity of the defect, another marker 43 of the corresponding color is moved, leaving a second colored dot on the marking paper 24. Through the color combination of these two dots, the repair personnel can quickly determine whether the defect is a protrusion or a depression, and its severity, thereby developing a more reasonable repair plan and improving repair efficiency.

[0068] In addition, when the marker 43 is not marking, it is inside the cylinder 18 and the through hole 36 is covered by the cover plate 50, which seals and protects the pen tip of the marker 43, preventing the pen tip from drying out or becoming contaminated due to prolonged exposure to air, and ensuring smooth ink flow and clear markings the next time it is used for marking.

[0069] Furthermore, the motor 37 can drive the flipping rod 35 to rotate, thereby changing the angle of the elastic pad 28 so that the elastic pad 28 is aligned with the end face or side of the cylinder 18. In this way, when the marker pen 43 is extended for marking, the elastic pad 28 will not interfere with its normal operation; when the marker pen 43 is retracted, the elastic pad 28 can return to the side of the marking paper 24 and continue to press and adhere the marking paper 24, thereby ensuring that the marking and pasting processes do not interfere with each other and are stably connected.

Claims

1. An optical calibration and detection device for the water tank volume of a three-wheeled fire truck, comprising a base (3), wherein a laser rangefinder (10) is provided on the base (3), characterized in that: The base (3) is provided with a tank wall concave and convex area marking component; The can wall concave and convex area marking assembly includes a support plate (9) and a cylinder (18). The support plate (9) has an unwinding roller (14) and a winding roller (16) rotatably mounted at both ends. The winding roller (16) and the unwinding roller (14) are wrapped with a base paper (20). Multiple marking papers (24) are pasted on the base paper (20). The support plate (9) has a slot for the base paper (20) to pass through and limit its side. The cylinder (18) has a clamping paper-removing structure for removing the marking paper (24) from the base paper (20). The cylinder (18) has an elastic extrusion structure for pressing the marking paper (24) against the inner wall of the can.

2. The optical calibration and detection device for the water tank volume of a three-wheeled fire truck according to claim 1, characterized in that: The base (3) is provided with an electric chuck (1), and the electric chuck (1) is provided with a plurality of positioning blocks that can slide radially at the same time.

3. The optical calibration and detection device for the water tank volume of a three-wheeled fire truck according to claim 1, characterized in that: The base (3) is provided with a crossbeam (2), the crossbeam (2) is provided with a lead screw linear module two (47), the moving end of the lead screw linear module two (47) is fixedly provided with a slide (4), the slide (4) is provided with a rack (5) sliding vertically, the bottom of the rack (5) is fixedly connected with a mounting shell (6), the bottom of the mounting shell (6) is rotatably provided with a rotating frame (8), the support plate (9) is fixedly connected to the rotating frame (8), and the laser rangefinder (10) is rotatably provided on the support plate (9).

4. The optical calibration and detection device for the water tank volume of a three-wheeled fire truck according to claim 3, characterized in that: The slide (4) is provided with a rotatable gear (31), which meshes with the rack (5). The slide (4) is provided with a motor five (30) for driving the gear (31) to rotate. The mounting shell (6) is provided with a motor one (7) for driving the rotating frame (8) to rotate. The support plate (9) is provided with a motor two (11) for driving the laser rangefinder (10) to rotate.

5. The optical calibration and detection device for the water tank volume of a three-wheeled fire truck according to claim 1, characterized in that: The unwinding roller (14) and the winding roller (16) are both fixedly fitted with pulleys (19) at one end. The two pulleys (19) are connected by a belt (13). The support plate (9) is equipped with a motor (12) for driving the unwinding roller (14) to rotate.

6. The optical calibration and detection device for the water tank volume of a three-wheeled fire truck according to claim 3, characterized in that: A fixed plate (23) is fixedly provided on the rotating frame (8). Two guide rods (21) slide horizontally through the fixed plate (23). An adjusting plate (15) is fixedly connected to the ends of the two guide rods (21). A cylinder (22) is fixedly provided on the fixed plate (23). The piston end of the cylinder (22) is fixedly connected to one side of the adjusting plate (15). The cylinder (18) is rotatably mounted on the adjusting plate (15). A motor (17) for driving the cylinder (18) to rotate is provided on the adjusting plate (15).

7. The optical calibration and detection device for the water tank volume of a three-wheeled fire truck according to claim 1, characterized in that: The paper clamping structure includes a slide (26) fixed on the cylinder (18), a lead screw linear module (27) on the slide (26), two movable ends that can move simultaneously toward or away from each other on the lead screw linear module (27), and an adjusting arm (29) fixed on each of the two movable ends. A lifting plate (44) is fixedly connected to one end of the adjusting arm (29), and a pressure rod (46) is rotatably provided on the lifting plate (44). A motor (45) for driving the pressure rod (46) to rotate is provided on the lifting plate (44). The marking paper (24) has glue-free protrusions at both ends.

8. The optical calibration and detection device for the water tank volume of a three-wheeled fire truck according to claim 1, characterized in that: The elastic extrusion structure includes a second cylinder (25) fixedly mounted on the cylinder (18). A displacement frame (38) is fixedly connected to the piston end of the second cylinder (25). A flipping rod (35) is rotatably mounted on the displacement frame (38). An elastic pad (28) is fixedly mounted on one end of the flipping rod (35).

9. The optical calibration and detection device for the water tank volume of a three-wheeled fire truck according to claim 1, characterized in that: The cylinder (18) is provided with a marking and differentiation auxiliary component; The marking and differentiation auxiliary component includes multiple slip rings (42) evenly distributed circumferentially along the inner cavity of the cylinder (18). One end of each slip ring (42) is slidably oriented vertically through a limiting rod (39) and a sliding rod (40). The bottoms of the limiting rod (39) and the sliding rod (40) are fixedly connected to the inner wall of the cylinder (18). Each slip ring (42) is detachably equipped with a marker pen (43), and each marker pen (43) is a different color. Each marker pen (43) is detachably fitted with an mounting ring (48). A connecting rod (49) is rotatably mounted on the mounting ring (48). A cover plate (5) is rotatably mounted on the end of the connecting rod (49) away from the mounting ring (48). 0), the cover plate (50) is slidably disposed at the bottom of the inner cavity of the cylinder (18) along the transverse direction. The bottom of the cylinder (18) is provided with multiple through holes (36) along the circumferential direction. Each through hole (36) corresponds to a cover plate (50). A spring (41) is sleeved on the slide rod (40). One end of the spring (41) is fixedly connected to the slip ring (42), and the other end is fixedly connected to the end of the slide rod (40). A rotating plate (34) is rotatably disposed at the center of the top of the cylinder (18). A cylinder three (33) is fixedly disposed on the rotating plate (34). A motor six (32) is disposed on the cylinder (18) for driving the rotating plate (34) to rotate.

10. The optical calibration and detection device for the water tank volume of a three-wheeled fire truck according to claim 8, characterized in that: The displacement frame (38) is equipped with a motor (37) for driving the rotating rod (35) to rotate.

Images