Lifting type searchlight ground well

Abstract

The invention relates to a lifting type searchlight underground well and belongs to the technical field of aviation underground wells, the lifting type searchlight underground well comprises an underground well pit body, a lifting frame and a searchlight, the lifting frame is slidably arranged in the underground well pit body in the vertical direction, and a first-stage lifting mechanism used for driving the lifting frame to slide is arranged in the underground well pit body; the searchlight is arranged on the lifting frame in a sliding mode in the vertical direction, and the lifting frame is provided with a secondary lifting mechanism used for driving the searchlight to slide. The lifting range of the searchlight is expanded, meanwhile, normal use of the searchlight is guaranteed, and the equipment reliability is improved.

Description

Technical Field

[0001] The present application relates to the technical field of aviation wells, and in particular to a lifting searchlight well. Background Art

[0002] In order to ensure that ground personnel can clearly inspect and operate aircraft or equipment at night or in low visibility conditions, it is usually necessary to set up a lifting searchlight for lighting.

[0003] At present, lifting searchlights are generally installed in underground wells, with rails set on both sides of the underground well opening, and covers installed on the rails. The covers can move along the rails to open and close the underground well opening; the searchlight is connected to a lifting device in the underground well, and the searchlight rises and falls with the lifting device, which generally uses a hydraulic cylinder or an electric cylinder. Due to the limited lifting height of the lifting device, the lifting range of the searchlight is small, and when the lifting device fails, the searchlight cannot be used normally. Summary of the invention

[0004] In order to help expand the lifting range of the searchlight, at the same time, ensure the normal use of the searchlight and improve the reliability of the equipment, the present application provides a lifting searchlight shaft.

[0005] The present application provides a lifting searchlight well adopting the following technical solution: A lifting searchlight underground well comprises an underground well pit body, a lifting frame and a searchlight. The lifting frame is slidably arranged in the underground well pit body along a vertical direction, and a primary lifting mechanism for driving the lifting frame to slide is arranged in the underground well pit body. The searchlight is slidably arranged on the lifting frame along a vertical direction, and a secondary lifting mechanism for driving the searchlight to slide is arranged on the lifting frame.

[0006] Preferably, the lifting searchlight well also includes a manhole cover for opening and closing the wellhead of the well pit body, the manhole cover is connected to the searchlight, and the manhole cover is located above the searchlight.

[0007] Preferably, the primary lifting mechanism includes a column, a transmission wheel, a transmission rope, a counterweight, a motor, a transmission shaft, a universal joint, a sprocket and a chain, the column is arranged in the underground pit body, two columns are arranged relatively along the axis of the underground pit body, the lifting frame is slidably arranged between the two columns, the transmission wheel corresponds to the columns one by one, the transmission wheel is rotatably arranged on the corresponding columns, the transmission rope corresponds to the transmission wheel one by one, the counterweight corresponds to the columns one by one, one end of the transmission rope is arranged on the lifting frame, and the other end is connected to the counterweight on the corresponding side, the transmission rope between the lifting frame and the counterweight is slidably overlapped on the corresponding transmission wheel, and the motor is arranged between the two columns The motor is located below the lifting frame, the transmission shaft is rotatably arranged between the two columns, the motor is used to drive the transmission shaft to rotate, the sprockets correspond to the columns one by one, the sprockets are rotatably arranged on the corresponding columns, the rotation axis of the sprockets intersects with the arrangement direction of the two columns, the two sprockets are respectively connected to the two ends of the transmission shaft through universal joints, the sprockets are located below the transmission wheel on the corresponding side, the rotation axis of the transmission wheel is parallel to the rotation axis of the sprocket on the corresponding side, the chain corresponds to the sprockets one by one, one end of the chain is connected to the lifting frame, and the other end is connected to the counterweight block on the corresponding side, and the chain transmission between the lifting frame and the counterweight block is connected to the corresponding sprocket.

[0008] Preferably, the first-stage lifting mechanism also includes a clutch, the input end of the clutch is used to connect with the output shaft of the motor, the clutch is used to drive the transmission shaft to rotate, a handle is rotatably provided on the manhole cover, a clutch line is provided on the handle, and the end of the clutch line away from the handle is provided on the clutch, when the handle is pulled up, the handle drives the clutch line to move to disengage the clutch; when the handle is lowered, the clutch engages, and the gravity of the counterweight block is greater than the sum of the gravity of the lifting frame, the searchlight and the manhole cover.

[0009] Preferably, a control knob is provided on the manhole cover, and the control knob is wirelessly connected to the motor.

[0010] Preferably, the secondary lifting mechanism comprises a multi-stage electric cylinder arranged on a lifting frame, and the searchlight is connected to a piston rod of the multi-stage electric cylinder.

[0011] Preferably, a load-bearing plate is provided on the lifting frame, and a waterproof cover is provided on the load-bearing plate, and the waterproof cover is used to seal the wellhead of the underground pit body, and the waterproof cover and the load-bearing plate are both located below the searchlight, and the load-bearing plate and the waterproof cover are both mounted on the cylinder body of the multi-stage electric cylinder.

[0012] Preferably, a well ring is provided at the wellhead position of the underground well pit body, the waterproof cover is used to seal the opening of the well ring, a waterproof sealing gasket is provided between the bearing plate and the waterproof cover, the waterproof sealing gasket is sleeved on the cylinder body of the multi-stage electric cylinder, and the waterproof sealing gasket is used to abut against the bottom wall of the well ring.

[0013] Preferably, the manhole cover is located above the manhole ring, and a sealing ring is provided on the manhole cover, and the sealing ring is used to abut against the manhole ring.

[0014] Preferably, the searchlight includes a base slidably arranged on a lifting frame, a lamp stand rotatably arranged on the base, a lamp body rotatably arranged on the lamp stand, a horizontal rotation mechanism arranged on the base and an up-and-down flipping mechanism arranged on the lamp stand, the base is connected to the piston rod of a multi-stage electric cylinder, the rotation axis of the lamp stand is arranged in a vertical direction, the horizontal rotation mechanism is used to drive the lamp stand to drive the lamp body to rotate horizontally, the rotation axis of the lamp body is perpendicular to the rotation axis of the lamp stand, and the up-and-down flipping mechanism is used to drive the lamp body to rotate for pitch.

[0015] In summary, this application includes the following beneficial technical effects: The searchlight is moved out of the underground pit by driving the lifting frame to rise with the primary lifting mechanism, and then the searchlight is driven to continue to rise to the desired position by the secondary lifting mechanism after the lifting frame rises to the desired position, thereby facilitating the use of the searchlight. The use of a two-stage lifting mechanism helps to increase the maximum lifting height of the searchlight, thereby expanding the lifting range; at the same time, the primary lifting mechanism and the secondary lifting mechanism are independent of each other. When one of the lifting mechanisms fails, the other lifting mechanism can still be used, which helps to ensure the normal use of the searchlight and improve the reliability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application.

[0017] Figure 2 It is a cross-sectional view of the overall structure of Example 1 of the present application.

[0018] Figure 3 This is a partial structural cross-sectional view of Example 1 of the present application.

[0019] Figure 4 yes Figure 2 Enlarged view of part A.

[0020] Figure 5 It is a schematic diagram of the partial structure of Example 2 of the present application.

[0021] Figure 6 yes Figure 5 Enlarged view of part B.

[0022] Explanation of the reference numerals: 1. underground pit body; 2. lifting frame; 3. searchlight; 31. base; 32. lamp holder; 33. lamp body; 34. horizontal rotation mechanism; 341. first drive motor; 342. first gear; 343. second gear; 35. up and down turning mechanism; 351. second drive motor; 4. manhole cover; 41. manhole cover plate; 42. manhole cover anti-skid patterned plate; 5. multi-stage electric cylinder; 6. load-bearing plate; 7. waterproof cover; 8. manhole ring; 81. manhole ring body; 82. manhole ring anti-skid patterned plate; 9. waterproof sealing pad; 10. sealing ring; 11. column ; 12. Transmission wheel; 13. Transmission rope; 14. Counterweight; 15. Motor; 16. Transmission shaft; 17. Universal joint; 18. Sprocket; 19. Chain; 20. Clutch; 21. Handle; 22. Control knob; 23. First rotating rod; 24. Second rotating rod; 25. Slide rail; 26. Slider; 27. Support plate; 28. Bearing with seat; 29. ​​Worm; 30. Worm wheel; 36. Connecting plate; 37. Rotating shaft; 38. Bolt; 39. Torsion spring; 40. Pull rope; 43. Arc magnet; 44. Fixing plate; 45. Guide wheel; 46. Transmission magnet. DETAILED DESCRIPTION

[0023] The following combination Figure 1-Figure 6 This application is described in further detail.

[0024] Embodiment 1: The present application embodiment discloses a lifting searchlight well. Figure 1 and Figure 2 The lifting searchlight well comprises a well body 1, a lifting frame 2 and a searchlight 3. The cross section of the well body 1 can be circular, square or other shapes. To facilitate the use of the searchlight 3, in the embodiment of the present application, the cross section of the well body 1 is square.

[0025] Reference Figure 2 The lifting frame 2 is H-shaped, and the lifting frame 2 is slidably arranged in the underground pit body 1 along the vertical direction. A primary lifting mechanism for driving the lifting frame 2 to slide is arranged in the underground pit body 1. The searchlight 3 is slidably arranged on the lifting frame 2, and the sliding direction of the searchlight 3 is arranged along the vertical direction. The searchlight 3 is located at the center position of the lifting frame 2, and a secondary lifting mechanism for driving the searchlight 3 to slide is arranged on the lifting frame 2.

[0026] When the searchlight 3 is needed, the first-level lifting mechanism is used to drive the lifting frame 2 to drive the searchlight 3 to rise, and the searchlight 3 is moved out of the underground pit body 1 until the lifting frame 2 rises to the required position, and then the searchlight 3 is driven to continue to rise to the required position through the second-level lifting mechanism, thereby facilitating the use of the searchlight 3. The use of a two-level lifting mechanism helps to increase the maximum lifting height of the searchlight 3, thereby expanding the lifting range; at the same time, the first-level lifting mechanism and the second-level lifting mechanism are independent of each other. When one of the lifting mechanisms fails, the other lifting mechanism can still be used, which helps to ensure the normal use of the searchlight and improves the reliability of the equipment.

[0027] Reference Figure 2 and Figure 3 Specifically, the searchlight 3 includes a base 31, a lamp holder 32, a lamp body 33, a horizontal rotation mechanism 34 and an up-and-down flip mechanism 35. The base 31 is slidably arranged on the lifting frame 2 in the vertical direction. The base 31 is located at the center of the lifting frame 2. The secondary lifting mechanism is used to drive the base 31 to drive the lamp holder 32 and the lamp body 33 to slide. The lamp holder 32 is rotatably arranged on the upper surface of the base 31. The rotation axis of the lamp holder 32 is arranged in the vertical direction. The lamp holder 32 is U-shaped. The bottom wall of the lamp holder 32 is fixed with a first rotating rod 23. The first rotating rod 23 is vertically rotated. The base 31 is provided with a horizontal rotation mechanism 34, which is used to drive the lamp holder 32 to drive the lamp body 33 to rotate horizontally; the lamp body 33 is rotatably installed in the lamp holder 32, and second rotating rods 24 are fixed on opposite sides of the lamp body 33, and the second rotating rods 24 are respectively rotatably connected to opposite sides of the lamp holder 32, and the rotation axis of the second rotating rod 24 is perpendicular to the rotation axis of the lamp holder 32, and an up and down flipping mechanism 35 is provided on the lamp holder 32, and the up and down flipping mechanism 35 is used to drive the lamp body 33 to rotate for pitch.

[0028] When the searchlight 3 needs to be rotated horizontally during use, the horizontal rotation mechanism 34 drives the lamp frame 32 and the lamp body 33 to rotate horizontally together; when the searchlight 3 needs to be tilted up and down, the up and down flipping mechanism 35 drives the lamp body 33 to rotate and tilt, thereby adjusting the angle of the lamp body 33, which helps to adapt to lighting in different situations.

[0029] Reference Figure 2 and Figure 3 In order to facilitate driving the lamp holder 32 to drive the lamp body 33 to rotate horizontally, the horizontal rotation mechanism 34 includes a first driving motor 341, a first gear 342 and a second gear 343. The first driving motor 341 is fixedly embedded in the base 31, the first gear 342 is coaxially fixed with the output shaft of the first driving motor 341, and the second gear 343 is fixedly sleeved on the first rotating rod 23, and the first gear 342 is meshed with the second gear 343.

[0030] When the angle of the lamp body 33 in the horizontal direction needs to be adjusted, the first drive motor 341 is started, and the first drive motor 341 drives the first gear 342 to rotate, and the first gear 342 drives the second gear 343 to rotate, so that the first rotating rod 23 drives the lamp holder 32 and the lamp body 33 to rotate horizontally. In other embodiments, the first gear 342 and the second gear 343 can be replaced by a transmission worm and a transmission worm wheel, the transmission worm is coaxially fixed with the output shaft of the first drive motor 341, the transmission worm wheel is fixedly sleeved on the first rotating rod 23, the transmission worm is meshed with the transmission worm wheel, the first drive motor 341 drives the transmission worm to rotate, and the transmission worm drives the transmission worm wheel to rotate, so that the first rotating rod 23 can also drive the lamp holder 32 and the lamp body 33 to rotate horizontally.

[0031] Reference Figure 2 and Figure 3 In order to facilitate driving the lamp body 33 to rotate and pitch, the up-down flip mechanism 35 includes a second drive motor 351 fixedly mounted on the lamp frame 32, and the second rotating rod 24 is coaxially fixed with the output shaft of the second drive motor 351. The second drive motor 351 is a reduction motor. In the embodiment of the present application, the second drive motor 351 is a reduction servo motor. In other embodiments, the second drive motor 351 can be a reduction stepping motor, a reduction drive motor, etc. The second drive motor 351 drives the second rotating rod 24 to drive the lamp body 33 to rotate, so that the lamp body 33 can be conveniently adjusted to a desired angle.

[0032] Reference Figure 2 The wellhead of the underground well pit body 1 is fixed with a well ring 8 by screws. Specifically, the well ring 8 includes a well ring body 81 and a well ring anti-skid patterned plate 82. The well ring body 81 is fixed to the embedded ring of the underground well pit body 1 by screws, and the well ring anti-skid patterned plate 82 is fixed to the upper surface of the well ring body 81 by screws. The well ring anti-skid patterned plate 82 helps to improve the anti-skid effect and improve the safety of the staff passing through the well ring 8. Among them, the well ring body 81 and the well ring anti-skid patterned plate 82 are both square rings, and the inner side length and the outer side length are equal. The inner side length of the well ring body 81 is smaller than the side length of the wellhead of the underground well pit body 1, and the outer side length of the well ring body 81 is larger than the side length of the wellhead of the underground well pit body 1. The setting of the well ring 8 helps to facilitate the waterproofing and sealing of the wellhead of the underground well pit body 1.

[0033] Reference Figure 2 and Figure 3The lifting searchlight well also includes a manhole cover 4 for opening and closing the wellhead of the well body 1. The manhole cover 4 is connected to the lamp holder 32. The manhole cover 4 is located above the lamp body 33. The manhole cover 4 is used to abut against the well ring 8 to close the wellhead of the well body 1. Specifically, the manhole cover 4 includes a manhole cover plate 41 and a manhole cover anti-slip patterned plate 42. The manhole cover plate 41 is fixedly connected to the upper end of the lamp frame 32. The manhole cover anti-slip patterned plate 42 is fixed to the upper surface of the manhole cover plate 41 by screws. The manhole cover anti-slip patterned plate 42 and the manhole cover plate 41 are both square. The side length of the manhole cover anti-slip patterned plate 42 is greater than the side length of the manhole cover plate 41. The side length of the manhole cover plate 41 gradually decreases toward the direction close to the lamp body 33. The maximum side length of the manhole cover plate 41 is adapted to the inner side length of the manhole ring body 81 to block the opening of the manhole ring body 81; the side length of the manhole cover anti-slip patterned plate 42 is greater than the inner side length of the manhole ring body 81, so that the manhole cover anti-slip patterned plate 42 can abut against the manhole ring anti-slip patterned plate 82.

[0034] Reference Figure 2 and Figure 3 In order to improve the sealing performance of the underground pit body 1 when it is closed, a sealing ring 10 is fixed between the manhole cover plate 41 and the manhole cover anti-slip patterned plate 42. The sealing ring 10 is a square ring. The outer edge length of the sealing ring 10 is greater than the inner edge length of the manhole ring body 81. The sealing ring 10 is used to abut against the manhole ring anti-slip patterned plate 82.

[0035] By integrating the manhole cover 4 and the searchlight 3, the searchlight 3 can drive the manhole cover 4 to move synchronously when it moves upward, thereby opening the underground manhole body 1, saving the preliminary preparation time for putting the searchlight 3 into use, and helping to improve the working efficiency; when the searchlight 3 descends, it drives the manhole cover 4 to descend together, so that the manhole cover plate 41 closes the opening of the manhole ring body 81, and the anti-skid patterned plate 42 of the manhole cover squeezes the sealing ring 10 on the anti-skid patterned plate 82 of the manhole ring to form a seal, thereby preventing rainwater, dust, and debris from entering the underground manhole body 1.

[0036] Reference Figure 2 and Figure 4 In order to facilitate the sliding of the lifting frame 2, the primary lifting mechanism includes a column 11, a transmission wheel 12, a transmission rope 13, a counterweight 14, a motor 15, a transmission shaft 16, a universal joint 17, a sprocket 18 and a chain 19. The column 11 is fixed to the lower surface of the well ring body 81 by a bolt 38 and is located in the underground well pit body 1. Two columns 11 are relatively arranged along the axis of the underground well pit body 1. Slide rails 25 are fixed on the two columns 11 along the vertical direction. Slide blocks 26 are fixed on the opposite sides of the lifting frame 2. The slide blocks 26 are slidably matched with the slide rails 25 on the corresponding side. The lifting frame 2 is slidably set between the two columns 11 through the sliding match between the slide blocks 26 and the slide rails 25.

[0037] Reference Figure 2 and Figure 4The transmission wheel 12 corresponds to the column 11 one by one, and the transmission wheel 12 is rotatably set on the corresponding column 11. The rotation axis of the transmission wheel 12 is perpendicular to the sliding direction of the lifting frame 2. The transmission wheel 12 is always located above the slider 26. The transmission rope 13 corresponds to the transmission wheel 12 one by one, and the counterweight block 14 corresponds to the column 11 one by one. One end of the transmission rope 13 is fixed on the slider 26 of the lifting frame 2, and the other end is connected to the counterweight block 14 on the corresponding side. The transmission rope 13 between the lifting frame 2 and the counterweight block 14 is slidably overlapped on the corresponding transmission wheel 12. Specifically, the transmission wheel 12 is a steel wheel, and the transmission rope 13 is a steel rope, which helps to ensure the strength and reliability of lifting.

[0038] Reference Figure 2 and Figure 4 A support plate 27 is fixed between the bottoms of the two columns 11, a motor 15 is fixed on the support plate 27 and is located between the two columns 11, the motor 15 is located below the lifting frame 2, seat bearings 28 are fixed at opposite ends of the support plate 27, a transmission shaft 16 is connected in the bearings of the two seat bearings 28, so that the transmission shaft 16 is rotatably arranged between the two columns 11, the rotation axis of the transmission shaft 16 is perpendicular to the sliding direction of the lifting frame 2, specifically, the rotation axis of the transmission shaft 16 is parallel to the arrangement direction of the two columns 11, and the motor 15 is used to drive the transmission shaft 16 to rotate.

[0039] Reference Figure 2 and Figure 4 The sprocket 18 corresponds to the column 11 one by one, and the sprocket 18 is rotatably connected to the corresponding column 11. The rotation axis of the sprocket 18 intersects with the rotation axis of the transmission shaft 16. Specifically, the side of the sprocket 18 away from the lifting frame 2 is inclined toward the direction away from the transmission shaft 16; the sprocket 18 is located below the transmission wheel 12 on the corresponding side, and the rotation axis of the transmission wheel 12 is parallel to the rotation axis of the sprocket 18 on the corresponding side, so as to facilitate the connection with the lifting frame 2; couplings are connected to both ends of the transmission shaft 16, and the two sprockets 18 are respectively connected to the couplings at both ends of the transmission shaft 16 through universal joints 17, so that when the transmission shaft 16 rotates, the sprocket 18 is driven to rotate through the coupling and the universal joint 17.

[0040] Reference Figure 2 and Figure 4 The chain 19 corresponds to the sprocket 18 one by one, one end of the chain 19 is fixedly connected to the slider 26 on the corresponding side of the lifting frame 2, and the other end is fixedly connected to the counterweight 14 on the corresponding side. The chain 19 between the lifting frame 2 and the counterweight 14 is transmission-connected to the sprocket 18 on the corresponding side, and a ring-shaped transmission system is formed by the sprocket 18, the chain 19, the counterweight 14, the transmission rope 13, the transmission wheel 12 and the slider 26. The gravity of the counterweight 14 is greater than the sum of the gravity of the lifting frame 2, the searchlight 3 and the manhole cover 4.

[0041] When the lifting frame 2 needs to be raised, the motor 15 drives the transmission shaft 16 to rotate, and the transmission shaft 16 drives the corresponding sprocket 18 to rotate through the coupling and the universal joint 17, so that the chain 19 is transmitted toward the lifting frame 2. At the same time, under the gravity of the counterweight 14, the transmission rope 13 is pulled to drive the lifting frame 2 to rise, thereby realizing the rise of the lifting frame 2. When the lifting frame 2 needs to be driven down, the motor 15 drives the transmission shaft 16 to rotate in the opposite direction, and the transmission shaft 16 drives the corresponding sprocket 18 to rotate in the opposite direction through the coupling and the universal joint 17, so that the chain 19 is transmitted in the direction away from the lifting frame 2, and the chain 19 pulls the lifting frame 2 to move down, and the lifting frame 2 pulls the transmission rope 13 to move, so that the counterweight 14 rises and resets, and the lifting frame 2 is lowered. The setting of the counterweight 14 enables the lifting frame 2 to be driven up by the weight of the counterweight 14 when it needs to be raised, which is simple and fast. The lifting frame 2 is dragged by using the cooperation of the transmission rope 13 and the transmission wheel 12 , and high-precision transmission does not need to be considered, and it can be applied to various situations.

[0042] Reference Figure 2 and Figure 4 In order to facilitate the use of the searchlight 3 in unexpected situations, a worm 29 is coaxially fixed on the output shaft of the motor 15, and a worm wheel 30 is loosely sleeved on the transmission shaft 16. The loose sleeve means that there is no contact and no connection between the transmission shaft 16 and the worm wheel 30. The worm wheel 30 is meshed with the worm 29. The first-level lifting mechanism also includes a clutch 20. The clutch 20 is loosely sleeved on the transmission shaft 16. The worm wheel 30 is fixed to the input shaft of the clutch 20 through a flange. The output shaft of the clutch 20 is fixed to the transmission shaft 16 through a key connection, so that the motor 15 is started and the worm wheel 30 is driven to rotate through the worm 29. The worm wheel 30 drives the input shaft of the clutch 20 through the flange, so that the clutch 20 drives the transmission shaft 16 to rotate.

[0043] Reference Figure 2 and Figure 4 A handle 21 is rotatably provided on the anti-slip pattern plate 42 of the manhole cover, and a clutch line (not shown in the figure) is provided on the handle 21. The end of the clutch line away from the handle 21 slides through the manhole cover plate 41 and is connected to the clutch 20. When the handle 21 is pulled up, the handle 21 drives the clutch line to move to disengage the clutch 20. When the handle 21 is lowered, the clutch 20 is engaged.

[0044] When the motor 15 fails, the handle 21 is pulled up, and the handle 21 drives the clutch line to move to disengage the clutch 20, and the lifting frame 2 rises under the gravity of the counterweight block 14, thereby reaching the required lifting height, so that the lifting frame 2 can also be raised by manual operation when the motor 15 fails, ensuring the normal use of the searchlight 3 and improving the reliability of the equipment.

[0045] Reference Figure 2 and Figure 4A control knob 22 is installed on the anti-skid pattern plate 42 of the manhole cover, and the control knob 22 is wirelessly connected to the motor 15. By rotating the control knob 22, the start and stop of the motor 15 can be controlled, which is convenient for the operation of the operator.

[0046] Reference Figure 2 In order to facilitate the base 31 to drive the lamp stand 32 and the lamp body 33 to move up and down, the secondary lifting mechanism includes a multi-stage electric cylinder 5. The multi-stage electric cylinder 5 is fixedly installed at the center of the lifting frame 2. The base 31 is fixedly connected to the piston rod of the multi-stage electric cylinder 5. In actual use, one to four electric cylinders can be selected according to different lifting heights. By starting the multi-stage electric cylinder 5, the base 31 can be driven to move up and down as needed. Among them, the multi-stage electric cylinder 5 is an electromechanical integrated electric cylinder. When an unexpected situation occurs, the operator can enter the underground pit body 1 through the inspection well and lift the base 31 by hand-cranking the handle of the multi-stage electric cylinder 5.

[0047] Reference Figure 2 A load-bearing plate 6 is fixed to the top of the lifting frame 2. The load-bearing plate 6 is square, and the side length of the load-bearing plate 6 is greater than the inner side length of the well ring body 81. A waterproof cover 7 is fixed above the load-bearing plate 6. The waterproof cover 7 is also square. The waterproof cover 7 and the load-bearing plate 6 are both located below the base 31. The side length of the waterproof cover 7 is equal to the inner side length of the well ring body 81. The waterproof cover 7 is used to block the opening of the well ring body 81. The load-bearing plate 6 and the waterproof cover 7 are fixedly mounted on the cylinder body of the multi-stage electric cylinder 5, which will not affect the movement of the piston rod of the multi-stage electric cylinder 5 and can also improve the waterproof effect.

[0048] Reference Figure 2 In order to improve the waterproof effect, a waterproof seal 9 is fixed between the bearing plate 6 and the waterproof cover 7. The waterproof seal 9 is sleeved on the cylinder body of the multi-stage electric cylinder 5. The side length of the waterproof seal 9 is greater than the inner side length of the well ring body 81, so that the waterproof seal 9 extends to the outside of the waterproof cover 7. The waterproof seal 9 is used to abut against the bottom wall of the well ring body 81. Among them, the clutch line on the handle 21 is slidably penetrated on the bearing plate 6, the waterproof cover 7 and the waterproof seal 9.

[0049] When the lifting frame 2 moves to the point where the waterproof sealing pad 9 on the bearing plate 6 abuts against the lower surface of the well ring body 81, the lifting frame 2 stops moving. This is the upper limit position of the lifting frame 2, the lamp holder 32 and the lamp body 33 are located outside the underground well pit body 1, the waterproof cover 7 blocks the opening of the well ring body 81, and the waterproof sealing pad 9 is squeezed on the well ring body 81 to form a seal, thereby preventing rainwater, dust, and debris from entering the underground well pit body 1, so that the searchlight 3 can be used in bad weather such as rain.

[0050] The implementation principle of Example 1 of the present application is: in the initial state, the handle 21 on the anti-slip patterned plate 42 of the manhole cover is in a lowered state, the anti-slip patterned plate 42 of the manhole cover squeezes the sealing ring 10 onto the anti-slip patterned plate 82 of the manhole ring, and the underground manhole body 1 is in a sealed state.

[0051] When the searchlight 3 is needed, the control knob 22 on the anti-skid patterned plate 42 of the manhole cover is rotated, and the control knob 22 sends a start signal to the motor 15. The motor 15 receives the start signal and drives the worm 29 to rotate. The worm 29 drives the worm wheel 30 to rotate. The worm wheel 30 drives the clutch 20 to drive the transmission shaft 16 through the transmission of the flange. The transmission shaft 16 drives the sprockets 18 at both ends to rotate through the coupling and the universal joint 17. The sprocket 18 rotates toward the direction of the lifting frame 2 to transmit the corresponding chain 19. At the same time, the transmission rope 13 is pulled to move under the action of the counterweight block 14, and the transmission rope 13 drives the transmission The driving wheel 12 rotates while dragging the lifting frame 2 upward. The lifting frame 2 is guided by the cooperation of the slider 26 and the slide rail 25. As the lifting frame 2 gradually rises, the searchlight 3 and the manhole cover 4 are driven to rise synchronously. The manhole cover 4 is separated from the manhole ring 8, and the wellhead is opened until the load-bearing plate 6 presses the waterproof sealing gasket 9 against the lower surface of the manhole ring body 81, and the waterproof cover 7 blocks the opening of the manhole ring body 81. At this time, the motor 15 receives the upper limit signal, and the motor 15 stops running. Through the cooperation of the waterproof cover 7 and the waterproof sealing gasket 9, a seal is formed in the underground pit body 1 to prevent rainwater, dust and debris from entering the underground pit body 1.

[0052] Then start the multi-stage electric cylinder 5, which drives the base 31 to drive the lamp holder 32, the lamp body 33 and the manhole cover 4 to continue to rise, and raise the lamp body 33 to the required height according to the needs of use, so as to facilitate the use of the searchlight 3. In this application, the two-stage lifting mechanism is adopted, which helps to increase the maximum lifting height of the searchlight 3, thereby expanding the lifting range; at the same time, the first-level lifting mechanism and the second-level lifting mechanism are independent of each other. When one of the lifting mechanisms fails, the other lifting mechanism can still be used, which helps to ensure the normal use of the searchlight 3 and improve the reliability of the equipment.

[0053] When the searchlight 3 is used up, the multi-stage electric cylinder 5 is started to drive the base 31 to drive the lamp frame 32, the lamp body 33 and the manhole cover 4 to descend, and then the control knob 22 is rotated to make the motor 15 drive the transmission shaft 16 to rotate in the opposite direction through the clutch 20, and the transmission shaft 16 drives the sprocket 18 to rotate in the opposite direction, so that the chain 19 pulls the lifting frame 2 to drive the searchlight 3 and the manhole cover 4 to descend, until the manhole cover plate 41 blocks the manhole ring body 81, and the sealing ring 10 is squeezed on the manhole ring anti-skid patterned plate 82 by the manhole cover anti-skid patterned plate 42 to form a seal, thereby preventing rainwater, dust and debris from entering the underground pit body 1.

[0054] In case of an accident, the handle 21 on the anti-skid patterned plate 42 of the manhole cover can be pulled up, and the handle 21 pulls the clutch line to disengage the clutch 20, so that the transmission shaft 16 can rotate alone, and the transmission rope 13 is pulled under the gravity of the counterweight 14, and the lifting frame 2 can still be dragged up to the required height by the transmission rope 13, and then the operator can enter the underground pit body 1 through the inspection well and raise and lower the searchlight 3 by manually cranking the handle of the multi-stage electric cylinder 5. After use, the searchlight 3 is lowered by manually cranking the handle of the multi-stage electric cylinder 5, and then the transmission shaft 16, the sprocket 18 and the transmission wheel 12 are rotated by hand, so that the lifting frame 2 is lowered back into the underground pit body 1, and finally the handle 21 is lowered to engage the clutch 20.

[0055] Embodiment 2: Reference Figure 5 and Figure 6 The difference between the embodiment of the present application and the embodiment 1 is that the manhole cover plate 41 is rotatably connected to the lamp holder 32. Specifically, two connecting plates 36 are relatively fixed on one side of the manhole cover plate 41 close to the lamp body 33. A rotating shaft 37 is fixed on the connecting plate 36. The rotating shaft 37 rotates on the lamp holder 32. The rotation axis of the rotating shaft 37 is parallel to the rotation axis of the second rotating rod 24. A bolt 38 is threadedly penetrated on the connecting plate 36. A threaded hole that is threadedly matched with the bolt 38 is opened on the lamp holder 32. A torsion spring 39 is movably sleeved on the rotating shaft 37. One end of the torsion spring 39 is fixed on the lamp holder 32, and the other end is fixed on the connecting plate 36. When the torsion spring 39 is in a natural state, the plane where the manhole cover plate 41 is located is parallel to the well ring body 81 (refer to Figure 2 ) on the plane where the torsion spring 39 is located is used to drive the manhole cover plate 41 to reset.

[0056] Reference Figure 5 and Figure 6, pull ropes 40 are distributed on opposite sides of the connecting plate 36, and the arrangement direction of the pull ropes 40 on both sides of the connecting plate 36 is perpendicular to the rotation axis of the rotating shaft 37. One end of the pull rope 40 is fixed on the manhole cover 41, and the other end is fixed with an arc magnet 43, which is slidably arranged on the corresponding side of the lamp holder 32, and an anti-skid pad is arranged for sliding between the arc magnet 43 and the lamp holder 32, so that the arc magnet 43 will not slide easily; the arc magnets 43 on both sides of the connecting plate 36 are respectively located on both sides of the second rotating rod 24 on the corresponding side, and the arc magnet 43 slides in the direction of approaching or moving away from the second rotating rod 24 on the corresponding side, The arc magnet 43 slides in the horizontal direction, and the sliding direction is perpendicular to the rotation axis of the second rotating shaft 37. The arc magnet 43 is concentrically arranged with the second rotating rod 24 on the corresponding side. The central angle of the arc magnet 43 is less than 180°. A fixing plate 44 is fixed on the lamp holder 32. The fixing plate 44 corresponds to the pull rope 40 one by one. A guide wheel 45 is rotatably arranged on the fixing plate 44. The rotation axis of the guide wheel 45 is parallel to the rotation axis of the second rotating rod 24. The pull rope 40 between the manhole cover 41 and the arc magnet 43 is slidably overlapped on the corresponding guide wheel 45. The setting of the guide wheel 45 helps to guide the movement of the pull rope 40.

[0057] Reference Figure 5 and Figure 6 A transmission magnet 46 is fixed on the second rotating rod 24. The transmission magnet 46 is used to attract the arc magnet 43 to slide toward the direction close to the second rotating rod 24 to pull the corresponding pull rope 40. The adsorption force between the transmission magnet 46 and the arc magnet 43 is greater than the sum of the torsion of the torsion spring 39 and the friction force exerted on the arc magnet 43. The transmission magnet 46 is located on the side of the second rotating rod 24 away from the lighting direction of the lamp body 33. When the lighting direction of the lamp body 33 is downward, the transmission magnet 46 and the two arc magnets 43 are misaligned.

[0058] The implementation principle of Example 2 of the present application is as follows: when the lamp body 33 is in the initial state, the lighting direction of the lamp body 33 is downward, at this time, the transmission magnet 46 and the two arc magnets 43 on the corresponding side are misaligned, and the manhole cover 41 is in a horizontal state under the action of the torsion spring 39 to facilitate blocking the manhole ring body 81; when the lamp body 33 is moved out of the ground pit body 1, the up and down flipping mechanism 35 drives the lamp body 33 to pitch, and the second rotating rod 24 drives the transmission magnet 46 to move, and the transmission magnet 46 moves to align with the arc magnet 43 on the side away from the lighting direction of the lamp body 33, and then the transmission magnet 46 absorbs the arc magnet 43 on the side away from the lighting direction of the lamp body 33, so that the arc magnet 43 slides in the direction close to the second rotating rod 24, and the arc magnet 43 pulls the manhole cover 41 to rotate through the corresponding pull rope 40, so that the side of the manhole cover 41 close to the lighting direction of the lamp body 33 tilts upward until it is adsorbed and connected with the transmission magnet 46, so that the manhole cover 41 is not easy to block the light, which helps to expand the lighting range of the lamp body 33.

[0059] When the searchlight 3 is used up, the lamp body 33 is rotated by adjusting the up and down flipping mechanism 35 so that the lighting direction of the lamp body 33 is downward, so that the transmission magnet 46 and the arc magnet 43 are separated, and then the manhole cover 41 is reset under the action of the torsion spring 39 and restored to a horizontal state, so that the manhole cover 41 can seal the manhole ring 81.

[0060] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A lifting searchlight well, characterized in that: The invention comprises a well pit body (1), a lifting frame (2) and a searchlight (3); the lifting frame (2) is slidably arranged in the well pit body (1) in a vertical direction; a primary lifting mechanism for driving the lifting frame (2) to slide is arranged in the well pit body (1); the searchlight (3) is slidably arranged on the lifting frame (2) in a vertical direction; a secondary lifting mechanism for driving the searchlight (3) to slide is arranged on the lifting frame (2).

2. A lifting searchlight well according to claim 1, characterized in that: The lifting searchlight well also comprises a well cover (4) for opening and closing the well mouth of the well pit body (1); the well cover (4) is connected to the searchlight (3); and the well cover (4) is located above the searchlight (3).

3. A lifting searchlight well according to claim 2, characterized in that: The primary lifting mechanism comprises a column (11), a transmission wheel (12), a transmission rope (13), a counterweight (14), a motor (15), a transmission shaft (16), a universal joint (17), a sprocket (18) and a chain (19); the column (11) is arranged in the underground pit body (1); two columns (11) are arranged opposite to each other along the axis of the underground pit body (1); the lifting frame (2) is slidably arranged between the two columns (11); the transmission wheel (12) corresponds to the columns (11) one by one The transmission wheel (12) is rotatably arranged on the corresponding column (11), the transmission rope (13) corresponds to the transmission wheel (12) one by one, the counterweight block (14) corresponds to the column (11) one by one, one end of the transmission rope (13) is arranged on the lifting frame (2), and the other end is connected to the counterweight block (14) on the corresponding side, the transmission rope (13) between the lifting frame (2) and the counterweight block (14) is slidably overlapped on the corresponding transmission wheel (12), and the motor (15) is arranged between the two columns ( The motor (15) is located between the two uprights (11), the motor (15) is located below the lifting frame (2), the transmission shaft (16) is rotatably arranged between the two uprights (11), the motor (15) is used to drive the transmission shaft (16) to rotate, the sprocket (18) corresponds to the uprights (11) one by one, the sprocket (18) is rotatably arranged on the corresponding uprights (11), the rotation axis of the sprocket (18) intersects with the arrangement direction of the two uprights (11), and the two sprockets (18) are respectively connected to the uprights (11) through universal joints (17). At both ends of the transmission shaft (16), the sprocket (18) is located below the transmission wheel (12) on the corresponding side, the rotation axis of the transmission wheel (12) is parallel to the rotation axis of the sprocket (18) on the corresponding side, the chain (19) corresponds to the sprocket (18) one by one, one end of the chain (19) is connected to the lifting frame (2), and the other end is connected to the counterweight (14) on the corresponding side, and the chain (19) between the lifting frame (2) and the counterweight (14) is transmission-connected to the corresponding sprocket (18).

4. A lifting searchlight well according to claim 3, characterized in that: The first-stage lifting mechanism further comprises a clutch (20), the input end of the clutch (20) being used to be connected to the output shaft of the motor (15), the clutch (20) being used to drive the transmission shaft (16) to rotate, a handle (21) being rotatably arranged on the manhole cover (4), a clutch line being arranged on the handle (21), an end of the clutch line away from the handle (21) being arranged on the clutch (20), when the handle (21) is pulled up, the handle (21) drives the clutch line to move to disengage the clutch (20); when the handle (21) is lowered, the clutch (20) is engaged, and the gravity of the counterweight block (14) is greater than the sum of the gravity of the lifting frame (2), the searchlight (3) and the manhole cover (4).

5. The lifting searchlight well according to claim 3, characterized in that: The manhole cover (4) is provided with a control knob (22), and the control knob (22) is wirelessly connected to the motor (15).

6. A lifting searchlight well according to any one of claims 2 to 5, characterized in that: The secondary lifting mechanism comprises a multi-stage electric cylinder (5) arranged on a lifting frame (2), and the searchlight (3) is connected to a piston rod of the multi-stage electric cylinder (5).

7. A lifting searchlight well according to claim 6, characterized in that: The lifting frame (2) is provided with a load-bearing plate (6), and the load-bearing plate (6) is provided with a waterproof cover (7). The waterproof cover (7) is used to seal the wellhead of the underground pit body (1). The waterproof cover (7) and the load-bearing plate (6) are both located below the searchlight (3). The load-bearing plate (6) and the waterproof cover (7) are both sleeved on the cylinder body of the multi-stage electric cylinder (5).

8. The lifting searchlight well according to claim 7, characterized in that: A well ring (8) is arranged at the wellhead position of the well pit body (1); the waterproof cover (7) is used to seal the opening of the well ring (8); a waterproof sealing gasket (9) is arranged between the bearing plate (6) and the waterproof cover (7); the waterproof sealing gasket (9) is sleeved on the cylinder body of the multi-stage electric cylinder (5); and the waterproof sealing gasket (9) is used to abut against the bottom wall of the well ring (8).

9. A lifting searchlight well according to claim 8, characterized in that: The manhole cover (4) is located above the manhole ring (8), and a sealing ring (10) is arranged on the manhole cover (4), and the sealing ring (10) is used to abut against the manhole ring (8).

10. The lifting searchlight well according to claim 6, characterized in that: The searchlight (3) comprises a base (31) slidably arranged on a lifting frame (2), a lamp holder (32) rotatably arranged on the base (31), a lamp body (33) rotatably arranged on the lamp holder (32), a horizontal rotation mechanism (34) arranged on the base (31) and an up-and-down flipping mechanism (35) arranged on the lamp holder (32); the base (31) is connected to a piston rod of a multi-stage electric cylinder (5); the rotation axis of the lamp holder (32) is arranged in a vertical direction; the horizontal rotation mechanism (34) is used to drive the lamp holder (32) to drive the lamp body (33) to rotate horizontally; the rotation axis of the lamp body (33) is perpendicular to the rotation axis of the lamp holder (32); and the up-and-down flipping mechanism (35) is used to drive the lamp body (33) to rotate for pitching.

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