High-voltage camera shooting metering instrument

Abstract

The invention relates to a high-voltage camera shooting metering instrument, and relates to the technical field of high-voltage camera shooting metering, the high-voltage camera shooting metering instrument comprises a base, an industrial camera, a transparent metering visual kettle and a lighting device, the industrial camera, the transparent metering visual kettle and the lighting device are arranged on the upper surface of the base at intervals along the length direction of the base; a set of bogies are rotationally arranged at one end of the bottom of the base in the length direction, steering wheels are rotationally arranged at the bottoms of the bogies, a set of fixing frames are fixedly arranged at the other end of the bottom of the base in the length direction, and driving wheels are rotationally arranged at the bottoms of the fixing frames. The base is further provided with a driving mechanism used for driving the driving wheels to rotate and a locking mechanism used for preventing the driving wheels from rotating. The device has the effects that the use flexibility of the device is improved, stable movement is facilitated, and the use efficiency of the device is improved.

Description

Technical Field

[0001] The present application relates to the technical field of high-voltage video measurement, and in particular to a high-voltage video measurement instrument. Background Art

[0002] Currently, laboratory instruments are developing towards precision and automation. However, in high-pressure seepage tests, low-permeability outlet measurements are still obtained through back-pressure-controlled electronic balances. This often results in large errors due to long pipelines, and even makes measurement difficult due to insufficient displaced liquid. Therefore, a high-pressure video metering device is required.

[0003] A related art design involves a high-pressure video metering device consisting of a base, a high-resolution industrial camera, a transparent visual metering vessel, and an illumination device arranged in sequence along its length. Under high-pressure experimental conditions, the displaced fluid enters the transparent visual metering vessel, where the illumination device provides ample backlight. The industrial camera captures and records the dynamic changes in the liquid level in real time. Subsequently, specialized image recognition and processing software accurately analyzes the change in liquid level rise over time, converting it into precise outlet flow data.

[0004] During the implementation of this application, it was found that there are at least the following problems in this technology: the device lacks a reliable moving mechanism, which makes it inconvenient to move during use, thereby reducing the efficiency of the device. Summary of the Invention

[0005] In order to improve the flexibility of the device during use, facilitate stable movement, and improve the efficiency of the device, the present application provides a high-voltage camera meter.

[0006] The high-voltage video meter provided in this application adopts the following technical solution: A high-voltage video meter comprises a base, an industrial camera, a transparent metering visual kettle, and a lighting device. The industrial camera, the transparent metering visual kettle, and the lighting device are arranged at intervals on the upper surface of the base along the length direction of the base. A group of bogies are rotatably provided at one end of the bottom of the base in the length direction, and a steering wheel is rotatably provided at the bottom of the bogie. A group of fixing frames are fixedly provided at the other end of the bottom of the base in the length direction, and a driving wheel is rotatably provided at the bottom of the fixing frame. The base is also provided with a driving mechanism for driving the driving wheel to rotate and a locking mechanism for hindering the rotation of the driving wheel.

[0007] By adopting the above technical solution, the high-voltage camera meter of this solution has convenient mobility. By arranging a bogie, steering wheels, fixed frame, and drive wheels, the entire device can be freely moved and steered on the ground or a specific platform. The drive mechanism can actively drive the drive wheel to rotate, providing auxiliary power for the device's movement process, reducing the burden of manual movement, improving the device's flexibility during use, facilitating stable movement, and improving the device's efficiency. The locking mechanism can reliably prevent the drive wheel from rotating, ensuring that the device is stably parked at the experimental position and preventing accidental slippage that affects measurement accuracy.

[0008] Preferably, a mounting frame is fixedly provided at the bottom of the base, and the driving mechanism includes a power shaft, a second gear, a first deflection rod, a first gear, a motor, and a gear set. The power shaft is arranged between a group of the driving wheels, one end of the power shaft is coaxially fixed with one of the driving wheels, the other end of the power shaft is coaxially fixed with the other driving wheel, the second gear is coaxially fixed with the power shaft, the first deflection rod is provided on the mounting frame, the motor is fixedly connected to the first deflection rod, the first gear is coaxially fixed with the driving shaft of the motor, and the second gear is connected to the first gear through a gear set.

[0009] By adopting the above technical solution, when auxiliary power is needed for the movement of the high-voltage camera meter, the motor is started, the drive shaft of the motor drives the first gear to rotate, the first gear transmits power to the second gear through the gear set, the second gear drives the power shaft to rotate, and then a group of drive wheels rotate simultaneously, thereby realizing the movement of the high-voltage camera meter.

[0010] Preferably, the gear set includes an amplifying gear, a driven gear, and a transmission shaft. The transmission shaft is rotatably connected to the mounting frame. The amplifying gear and the driven gear are coaxially fixed to the transmission shaft. The diameter of the amplifying gear is larger than the diameter of the driven gear. The amplifying gear is meshed with the second gear, and the driven gear is meshed with the first gear.

[0011] By adopting this technical solution, when the motor drives the first gear to rotate, the first gear drives the driven gear to rotate. The driven gear drives the amplifying gear via the transmission shaft, which in turn drives the second gear, which in turn drives the drive wheel. Because the amplifying gear has a larger diameter than the driven gear, and both the large gear and the driven gear are coaxially fixed to the transmission shaft, the amplifying gear increases the circumference of the rotating shaft per rotation, thereby increasing the rotation speed of the drive wheel.

[0012] Preferably, the lighting device includes an LED light source and a movable bracket, the movable bracket is slidably connected to the base along the length direction of the base, the LED light source is arranged on the movable bracket on the side facing the transparent metering visual kettle, and the base is also provided with an adjustment part for driving the movable bracket to slide.

[0013] By adopting this technical solution, different experimental scenarios may have different lighting requirements during high-pressure seepage tests. In this case, the operator can flexibly drive the movable bracket to slide along the length of the base through the adjustment part, thereby adjusting the relative position between the LED light source and the transparent metering visual kettle to adjust the lighting intensity and other effects, preventing excessive backlight from affecting the clarity of the image captured by the industrial camera.

[0014] Preferably, the adjusting member includes a rack, a movable groove is opened on the base along the length direction, the movable groove passes through the upper and lower surfaces of the base, the rack is slidably set in the movable groove, and is fixedly connected to the movable bracket, an adjusting shaft is rotatably set on the mounting frame, the adjusting shaft is rotatably connected to the mounting frame, the first deflection rod is fixedly connected to the adjusting shaft, the first gear can be disengaged from the driven gear, and meshes with the rack.

[0015] By employing this technical solution, when the position of the lighting device needs to be adjusted, the operator rotates the adjustment shaft to activate the first deflection lever, causing the first gear to disengage from the driven gear and engage with the rack. At this point, after starting the motor, the motor drive shaft rotates the first gear, which, through the rack, converts rotational motion into linear motion. This in turn drives the movable bracket to slide along the movable groove in the base, adjusting the relative position of the LED light source and the transparent metering visual kettle. This eliminates the need for a separate power source, effectively simplifying the device structure.

[0016] Preferably, the locking mechanism includes a second deflection rod and a locking tooth. One end of the second deflection rod is fixedly connected to the adjusting shaft, and the locking tooth is fixedly connected to the other end of the second deflection rod. When the first gear and the rack are engaged with each other, the locking tooth is inserted into the tooth groove of the second gear and abuts against the tooth groove of the second gear.

[0017] By adopting this technical solution, when the lighting device needs to be adjusted, it means that the high-voltage camera meter has been moved to the experimental site. At this time, the operator rotates the adjustment shaft. On the one hand, the first deflection rod drives the first gear to disengage from the driven gear and engage with the rack. On the other hand, the second deflection rod synchronously drives the locking tooth to insert into the tooth groove of the second gear. At this time, the locking tooth and the tooth groove of the second gear abut each other, forming a mechanical locking structure, limiting the rotational freedom of the second gear. The second gear transmits the locking effect to the drive wheel, preventing accidental movement of the base and affecting the measurement accuracy. After that, the motor is only used to drive the LED light source to adjust the light.

[0018] Preferably, the base is provided with an adjustment groove running through the upper and lower surfaces, the length direction of the adjustment groove is parallel to the length direction of the base, a connecting block is fixedly provided on the adjustment shaft, a baffle is provided on the connecting block, the end of the baffle away from the adjustment shaft passes through the adjustment groove and extends to the top of the base, and a grip ball is fixedly provided on the end of the baffle away from the adjustment shaft.

[0019] By adopting the above technical solution, the operator can directly push or pull back the blocking rod in the adjustment groove by holding the grip ball. The blocking rod is connected to the adjustment shaft, thereby driving the adjustment shaft to rotate, thereby facilitating the engagement switching of the first gear and the rack / driven gear, as well as the insertion / disengagement of the lock teeth above the base. At the same time, the blocking rod increases the torque applied by the operator to the adjustment shaft, making state switching more labor-saving.

[0020] Preferably, the adjustment slot is provided with a first locking slot and a second locking slot at both ends in the length direction of the base, and the first locking slot and the second locking slot are both opened along the width direction of the base. The baffle rod is rotatably connected to the connecting block. When the first gear and the driven gear are engaged with each other, the baffle rod can be rotated into the first locking slot and abut against the first locking slot. When the first gear and the rack are engaged with each other, the baffle rod can be rotated into the second locking slot and abut against the second locking slot.

[0021] By adopting the above technical solution, when the blocking lever moves to the first locking slot at one end of the adjustment slot, the blocking lever snaps into the first locking slot along the width direction of the base. At this time, the first gear and the driven gear remain in meshing state, and the drive mechanism is in a usable mode. When the blocking lever slides to the second locking slot at the other end, the blocking lever also snaps into the second locking slot. At this time, the first gear and the rack are fully engaged, and the locking teeth synchronously lock the drive wheel. Unintentional rotation of the adjustment shaft will cause unreliable transmission between the first gear and the rack or the driven gear.

[0022] Preferably, the base is provided with a handle at one end close to the steering wheel, the handle is provided with a control switch, and the control switch is electrically connected to the motor.

[0023] By adopting the above technical solution, the operator can guide the movement direction of the base by holding the handle. At the same time, the control switch is integrated into the handle, allowing the operator to complete the operation of guiding the direction and starting the motor with one hand during movement, which is convenient.

[0024] Preferably, a rotating table is provided at the bottom of the handle, the rotating table is rotatably connected to the base, and the axis is vertical, the handle is rotatably connected to the rotating table, and the axis is horizontal, a first sprocket is rotatably provided at the bottom of the base, the first sprocket is coaxially fixed to the rotating table, a second sprocket is coaxially fixed on the bogie, a transmission chain is provided between the first sprocket and the second sprocket, one end of the transmission chain is sleeved on one of the second sprockets and meshed with one of the second sprockets, the other end of the transmission chain is sleeved on the other second sprocket and meshed with the other second sprocket, and the middle part of the transmission chain meshes with the first sprocket.

[0025] By adopting the above technical solution, when the operator pulls the handle, the handle deflects on the rotating table and faces the direction of the pulling force. When the direction needs to be adjusted, the handle is pulled in the direction of the required rotation, the rotating table rotates, and the first sprocket rotates accordingly. The first sprocket transmits the rotation to the second sprocket through the transmission chain. The second sprocket is coaxially fixed with the bogie, thereby driving the bogie to rotate and realizing the steering of the steering wheel.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. By setting up a bogie, steering wheel, fixed frame, driving wheel, driving mechanism, and locking mechanism, the entire device can be freely moved and turned on the ground or a specific platform, which improves the flexibility of the device during use, facilitates stable movement, improves the efficiency of the device, and ensures that the device is stably parked at the experimental position to prevent accidental sliding that affects the measurement accuracy; 2. By arranging the power shaft, the second gear, the first deflection rod, the first gear, the motor, the gear set, the amplifying gear, the driven gear, and the transmission shaft, the driving wheel is driven by power, providing auxiliary power for the movement process of the device and reducing the burden of manual movement; 3. By setting a movable bracket, an adjusting member, a movable groove, a second deflection rod, a locking tooth, an adjusting groove, and a connecting block, the first gear is driven to rotate by a motor, thereby driving the rack to slide, and driving the movable bracket to slide along the movable groove of the base, thereby realizing the adjustment of the relative position of the LED light source and the transparent metering visual kettle. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a high-voltage camera meter provided in an embodiment of the present application.

[0028] Figure 2 yes Figure 1 Enlarged view of part A.

[0029] Figure 3 It is a partially enlarged schematic diagram reflecting the driving mechanism and the locking mechanism in the embodiment of the present application.

[0030] Figure 4It is a structural diagram reflecting the connection relationship between the rotating table, the first sprocket, the second sprocket, and the transmission chain in the embodiment of the present application.

[0031] Explanation of reference numerals: 1, base; 11, industrial camera; 12, transparent metering visual kettle; 13, lighting device; 131, LED light source; 132, movable bracket; 14, bogie; 141, steering wheel; 15, fixed frame; 151, driving wheel; 16, movable slot; 161, rack; 17, adjustment slot; 171, first locking slot; 172, second locking slot; 18, adjustment shaft; 181, connecting block; 182, stop rod; 183, Grip ball; 19. Mounting frame; 2. Driving mechanism; 21. Power shaft; 22. Second gear; 23. First deflection rod; 24. First gear; 25. Motor; 26. Gear set; 261. Amplifying gear; 262. Driven gear; 263. Transmission shaft; 3. Locking mechanism; 31. Second deflection rod; 32. Locking teeth; 4. Pull handle; 41. Control switch; 42. Rotating table; 43. First sprocket; 44. Second sprocket; 45. Transmission chain. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] The embodiment of the present application discloses a high voltage camera meter. Figure 1 The device comprises a base 1, an industrial camera 11, a transparent visual measuring kettle 12, and an illuminating device 13. The industrial camera 11, the transparent visual measuring kettle 12, and the illuminating device 13 are spaced apart on the upper surface of the base 1 along its length. The industrial camera 11 is mounted on the base 1 via a support frame. The illuminating device 13 comprises an LED light source 131 and a movable bracket 132. The movable bracket 132 is slidably connected to the base 1 along its length. The LED light source 131 is mounted on the side of the movable bracket 132 facing the transparent visual measuring kettle 12. The base 1 is also provided with an adjusting member for driving the movable bracket 132 to slide.

[0034] Reference Figures 1 to 3 A set of bogies 14 are rotatably provided at one end of the bottom of the base 1 in the longitudinal direction. The rotation axis of the bogies 14 is vertical. Specifically, two bogies 14 are spaced apart in the width direction of the base 1. A steering wheel 141 is rotatably provided at the bottom of the bogie 14. The rotation axis of the bogie 14 is horizontal. A set of fixed frames 15 are fixedly provided at the other end of the bottom of the base 1 in the longitudinal direction. Specifically, two fixed frames 15 are spaced apart in the width direction of the base 1. A driving wheel 151 is rotatably provided at the bottom of the fixed frame 15. The rotation axis of the driving wheel 151 is horizontal. The base 1 is also provided with a driving mechanism 2 for driving the driving wheel 151 to rotate and a locking mechanism 3 for preventing the driving wheel 151 from rotating.

[0035] In order to realize the driving of the driving wheel 151, refer to Figure 1 and Figure 3 The drive mechanism 2 includes a power shaft 21, a second gear 22, a first deflection rod 23, a first gear 24, a motor 25, and a gear set 26. The power shaft 21 is disposed between a set of drive wheels 151. One end of the power shaft 21 is coaxially fixed to one of the drive wheels 151, and the other end is coaxially fixed to the other drive wheel 151. The second gear 22 is coaxially fixed to the power shaft 21.

[0036] Reference Figure 1 and Figure 3 A mounting bracket 19 is fixedly mounted on the bottom of the base 1. In this embodiment, the mounting bracket 19 comprises two vertical plates symmetrically arranged across the width of the bottom of the base 1. An adjustment shaft 18, parallel to the axis of the power shaft 21, is rotatably mounted between the two vertical plates of the mounting bracket 19. One end of a first deflection rod 23 is mounted on the mounting bracket 19 via the adjustment shaft 18 and is fixedly connected to the adjustment shaft 18. A motor 25 is fixedly connected to the end of the first deflection rod 23 that is distal from the adjustment shaft 18. A first gear 24 is coaxially fixed to the drive shaft of the motor 25, with the axis of the first gear 24 parallel to the axis of the power shaft 21.

[0037] Reference Figure 3 The second gear 22 is connected to the first gear 24 via a gear set 26. Specifically, the gear set 26 includes an amplifying gear 261, a driven gear 262, and a transmission shaft 263. The transmission shaft 263 is rotatably connected to the mounting bracket 19, with its axis parallel to the power shaft 21. The amplifying gear 261 and the driven gear 262 are both coaxially fixed to the transmission shaft 263. The diameter of the amplifying gear 261 is larger than that of the driven gear 262. The amplifying gear 261 meshes with the second gear 22, and the driven gear 262 meshes with the first gear 24.

[0038] Reference Figure 1 and Figure 3 When auxiliary power is needed to move the high-voltage video meter, motor 25 is started. The drive shaft of motor 25 rotates first gear 24, which in turn rotates driven gear 262. Driven gear 262, via transmission shaft 263, rotates amplifying gear 261. Amplifying gear 261 then rotates second gear 22, which in turn rotates drive wheel 151. This causes a group of drive wheels 151 to rotate simultaneously, enabling movement of the high-voltage video meter. Because the diameter of amplifying gear 261 is larger than that of driven gear 262, amplifying gear 261 increases the circumference of one rotation of the rotating shaft, accelerating the rotation of drive wheel 151. In order to facilitate the adjustment of the position of the LED light source 131 and the obstruction of the base 1 driving wheel 151, refer to Figure 1 and Figure 3The adjusting member includes a rack 161. A movable slot 16 is defined along the length of the base 1. The movable slot 16 extends through the upper and lower surfaces of the base 1. The rack 161 is slidably disposed within the movable slot 16 and is fixedly connected to the movable bracket 132. As the adjusting shaft 18 rotates, the first gear 24 disengages from the driven gear 262 and meshes with the rack 161.

[0039] Reference Figure 1 and Figure 3 The locking mechanism 3 includes a second deflection rod 31 and a locking tooth 32. One end of the second deflection rod 31 is fixedly connected to the adjustment shaft 18, and the locking tooth 32 is fixedly connected to the other end of the second deflection rod 31. When the first gear 24 and the rack 161 are engaged with each other, the locking tooth 32 is inserted into the tooth groove of the second gear 22 and abuts against the tooth groove of the second gear 22. Reference Figures 1 to 3 The base 1 is provided with an adjustment slot 17 that runs through the upper and lower surfaces. The length direction of the adjustment slot 17 is parallel to the length direction of the base 1. A connecting block 181 is fixedly provided on the adjustment shaft 18. A blocking rod 182 is rotatably provided on the connecting block 181. The end of the blocking rod 182 away from the adjustment shaft 18 passes through the adjustment slot 17 and extends above the base 1. A gripping ball 183 is fixedly provided on the end of the blocking rod 182 away from the adjustment shaft 18. The adjustment slot 17 restricts the blocking rod 182 from rotating relative to the connecting block 181, thereby restricting the blocking rod 182 from moving in the width direction of the base 1. The adjustment slot 17 is provided with a first locking slot 171 and a second locking slot 172 at both ends of the length direction of the base 1. The first locking slot 171 and the second locking slot 172 are both provided along the width direction of the base 1. When the first gear 24 and the driven gear 262 are engaged with each other, the blocking rod 182 can move into the first locking slot 171 and abut against the first locking slot 171. When the first gear 24 and the rack 161 are meshed with each other, the blocking rod 182 can move into the second locking groove 172 and abut against the second locking groove 172. When the blocking rod 182 moves into the first locking groove 171 or the second locking groove 172, the inner wall of the first locking groove 171 or the second locking groove 172 restricts the rotation of the adjustment shaft 18 through the blocking rod 182 and the connecting block 181.

[0040] In order to facilitate the operator to guide the bogie 14 to turn, refer to Figure 1 and Figure 4 The base 1 is provided with a handle 4 at one end near the steering wheel 141, and a control switch 41 is provided on the handle 4. The control switch 41 is electrically connected to the motor 25. The control switch 41 is used to control the start, stop, speed and direction of the motor 25. In this embodiment, the motor 25 is a servo motor 25, and the control switch 41 controls the motor 25 by conventional means in this field, which will not be elaborated here.

[0041] Reference Figure 1 and Figure 4A rotating platform 42 is provided at the bottom of the handle 4. The rotating platform 42 is rotatably connected to the base 1 with a vertical axis. The handle 4 is rotatably connected to the rotating platform 42 with a horizontal axis. A first sprocket 43 is rotatably provided at the bottom of the base 1. The first sprocket 43 is coaxially fixed to the rotating platform 42. A second sprocket 44 is coaxially fixed to the bogie 14. A transmission chain 45 is provided between the first sprocket 43 and the second sprocket 44. One end of the transmission chain 45 is sleeved on one of the second sprockets 44 and meshed with one of the second sprockets 44. The other end of the transmission chain 45 is sleeved on the other second sprocket 44 and meshed with the other second sprocket 44. The first sprocket 43 is located in the middle of the inner side of the transmission chain 45. The middle part of the transmission chain 45 meshes with the first sprocket 43. A limiting wheel is also rotatably provided at the bottom of the base 1. The limiting wheel abuts against the outer side of the transmission chain 45 and is used to press the transmission chain 45 against the first sprocket 43. When the operator pulls the handle 4, the handle 4 deflects on the rotating table 42 and moves in the direction of the pulling force. When the moving direction needs to be adjusted, the operator pulls the handle 4 in the direction of the required movement, the rotating table 42 rotates, and the first sprocket 43 rotates accordingly. The first sprocket 43 transmits the rotation to the second sprocket 44 through the transmission chain 45. The second sprocket 44 is coaxially fixed to the bogie 14, thereby driving the bogie 14 to rotate and realizing the steering of the steering wheel 141. The implementation principle of a high-voltage video meter according to an embodiment of the present application is as follows: when the high-voltage video meter needs to be moved, the operator holds the handle 4 and starts the motor 25 through the control switch 41. The motor 25 drives the first gear 24 to rotate, which in turn drives the second gear 22 through the transmission of the gear set 26, thereby rotating the drive wheel 151 to achieve movement. At the same time, the movement of the handle 4 drives the bogie 14 and the steering wheel 141 to turn through the rotating table 42, the first sprocket 43, the transmission chain 45, and the second sprocket 44. After moving to the experimental position, the blocking rod 182 is pulled and the adjustment shaft 18 is rotated to engage the first gear 24 with the rack 161. At the same time, the lock tooth 32 is inserted into the tooth groove of the second gear 22 to lock the drive wheel 151. At this time, the rack 161 can be driven by the motor 25 to move, thereby adjusting the position of the lighting device 13 to meet the lighting requirements of different experiments.

[0042] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A high-voltage video meter, comprising a base (1), an industrial camera (11), a transparent visual measuring kettle (12), and an illuminating device (13), wherein the industrial camera (11), the transparent visual measuring kettle (12), and the illuminating device (13) are arranged on the upper surface of the base (1) at intervals along the length direction of the base (1), and characterized in that: A group of bogies (14) are rotatably provided at one end of the bottom of the base (1) in the longitudinal direction, and a steering wheel (141) is rotatably provided at the bottom of the bogies (14). A group of fixing frames (15) are fixedly provided at the other end of the bottom of the base (1) in the longitudinal direction, and a driving wheel (151) is rotatably provided at the bottom of the fixing frames (15). A driving mechanism (2) for driving the driving wheel (151) to rotate and a locking mechanism (3) for preventing the driving wheel (151) from rotating are also provided on the base (1).

2. A high-voltage video meter according to claim 1, characterized in that: A mounting frame (19) is fixedly provided at the bottom of the base (1); the driving mechanism (2) comprises a power shaft (21), a second gear (22), a first deflection rod (23), a first gear (24), a motor (25), and a gear set (26); the power shaft (21) is arranged between a group of driving wheels (151); one end of the power shaft (21) is coaxially fixed to one of the driving wheels (151); the other end of the power shaft (21) is coaxially fixed to the other driving wheel (151); the second gear (22) is coaxially fixed to the power shaft (21); the first deflection rod (23) is arranged on the mounting frame (19); the motor (25) is fixedly connected to the first deflection rod (23); the first gear (24) is coaxially fixed to the driving shaft of the motor (25); and the second gear (22) is transmission-connected to the first gear (24) via the gear set (26).

3. A high-voltage video meter according to claim 2, characterized in that: The gear set (26) comprises an amplifying gear (261), a driven gear (262), and a transmission shaft (263); the transmission shaft (263) is rotatably connected to the mounting frame (19); the amplifying gear (261) and the driven gear (262) are coaxially fixed to the transmission shaft (263); the diameter of the amplifying gear (261) is larger than the diameter of the driven gear (262); the amplifying gear (261) and the second gear (22) are meshed with each other, and the driven gear (262) and the first gear (24) are meshed with each other.

4. A high-voltage video meter according to claim 3, characterized in that: The lighting device (13) comprises an LED light source (131) and a movable bracket (132). The movable bracket (132) is slidably connected to the base (1) along the length direction of the base (1). The LED light source (131) is arranged on the movable bracket (132) on a side facing the transparent metering visual kettle (12). The base (1) is also provided with an adjusting member for driving the movable bracket (132) to slide.

5. A high-voltage video meter according to claim 4, characterized in that: The adjusting member includes a rack (161), a movable groove (16) is provided on the base (1) along the length direction, the movable groove (16) passes through the upper and lower surfaces of the base (1), the rack (161) is slidably arranged in the movable groove (16) and is fixedly connected to the movable bracket (132), an adjusting shaft (18) is rotatably arranged on the mounting frame (19), the first deflection rod (23) is fixedly connected to the adjusting shaft (18), and the first gear (24) can be disengaged from the driven gear (262) and is meshed with the rack (161).

6. A high-voltage video meter according to claim 5, characterized in that: The locking mechanism (3) comprises a second deflection rod (31) and a locking tooth (32); one end of the second deflection rod (31) is fixedly connected to the adjustment shaft (18); the locking tooth (32) is fixedly connected to the other end of the second deflection rod (31); when the first gear (24) and the rack (161) are engaged with each other, the locking tooth (32) is inserted into the tooth groove of the second gear (22) and abuts against the tooth groove of the second gear (22).

7. A high-voltage video meter according to claim 6, characterized in that: The base (1) is provided with an adjustment groove (17) running through the upper and lower surfaces, the length direction of the adjustment groove (17) is parallel to the length direction of the base (1), a connecting block (181) is fixedly provided on the adjustment shaft (18), a blocking rod (182) is provided on the connecting block (181), an end of the blocking rod (182) away from the adjustment shaft (18) passes through the adjustment groove (17) and extends to the top of the base (1), and a gripping ball (183) is fixedly provided on the end of the blocking rod (182) away from the adjustment shaft (18).

8. A high-voltage video meter according to claim 7, characterized in that: The adjusting slot (17) is provided with a first locking slot (171) and a second locking slot (172) at both ends in the length direction of the base (1). The first locking slot (171) and the second locking slot (172) are both provided along the width direction of the base (1). The blocking rod (182) is rotatably connected to the connecting block (181). When the first gear (24) and the driven gear (262) are engaged with each other, the blocking rod (182) can be rotated into the first locking slot (171) and abut against the first locking slot (171). When the first gear (24) and the rack (161) are engaged with each other, the blocking rod (182) can be rotated into the second locking slot (172) and abut against the second locking slot (172).

9. A high voltage video meter according to claim 2, characterized in that: The base (1) is provided with a handle (4) at one end close to the steering wheel (141), and a control switch (41) is provided on the handle (4), and the control switch (41) is electrically connected to the motor (25).

10. A high voltage video meter according to claim 9, characterized in that: A rotating platform (42) is provided at the bottom of the handle (4), and the rotating platform (42) is rotatably connected to the base (1), and the axis is vertical. The handle (4) is rotatably connected to the rotating platform (42), and the axis is horizontal. A first sprocket (43) is rotatably provided at the bottom of the base (1), and the first sprocket (43) is coaxially fixed with the rotating platform (42). A second sprocket (44) is coaxially fixed on the bogie (14). A transmission chain (45) is provided between the first sprocket (43) and the second sprocket (44). One end of the transmission chain (45) is sleeved on one of the second sprockets (44) and meshed with one of the second sprockets (44). The other end of the transmission chain (45) is sleeved on another second sprocket (44) and meshed with another second sprocket (44). The middle part of the transmission chain (45) meshes with the first sprocket (43).

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