A temporary wire erection device with cable sag height monitoring function

Abstract

The present invention relates to a temporary wire installation device with a cable sag height monitoring function, which belongs to the technical field of temporary wire installation tools; the device comprises a base, a support tube is rotatably arranged on the base through a rotary mechanism, a fixing frame is arranged on the support tube through a lifting mechanism, a main support plate is fixedly arranged on the upper end of the fixing frame, and a secondary support plate is rotatably arranged at the front and rear ends of the main support plate, and the two secondary support plates are connected to the fixing frame through an angle adjustment mechanism; two groups of left and right cable status monitoring mechanisms are arranged on the upper end of the main support plate, the cable status monitoring mechanism includes a pressure sensor, a positioning seat is arranged on the upper end of the pressure sensor, and a limiting roller is rotatably arranged inside the positioning seat; a cable position adjustment mechanism is arranged on the upper end of the secondary support plate, the cable position adjustment mechanism includes a slidable sliding seat, and the cable is controlled to slide by the sliding seat; the problem that the current temporary wire installation device has poor stability and cannot monitor cable sag is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of temporary electric wire installation tools, and in particular relates to a temporary electric wire installation device with a cable sag height monitoring function. Background Art

[0002] In today's society, power supply plays an indispensable role in various scenarios, and the demand for temporary electricity is increasing. Temporary power lines are widely used in construction sites, large-scale outdoor events, disaster relief sites, and temporary maintenance operations. At construction sites, as the project progresses, the demand for electricity in each construction phase is temporary and phased. For example, the foundation construction phase requires power supply for piling equipment and concrete mixing equipment; the main construction phase must meet the power needs of tower cranes, elevators, and various power tools. Due to the constant changes in construction sites, power supply often relies on the installation of temporary power lines. When holding large-scale outdoor events such as music festivals, sports events, and trade shows, temporary power lines are also needed to ensure the normal operation of on-site lighting, sound equipment, stage equipment, and food and beverage stalls.

[0003] Existing temporary wire installation devices usually include a movable base, a lifting rod and a fixed frame for supporting cables. However, there are many problems with existing temporary wire installation devices: in terms of the steering of the fixed frame, it is difficult to flexibly adjust the steering of the fixed frame when facing different cable connection directions, which affects the installation efficiency; in terms of stability, after the cables are installed, due to insufficient support, the cables are prone to unstable conditions such as shaking and sagging, especially for longer or heavier cables, the stability problem is more serious, which greatly increases the safety hazards of cable installation; in terms of monitoring, in actual use, it is impossible to detect changes in cable height in time, and effective measures cannot be taken in time, and it is difficult to avoid safety accidents and power supply problems caused by cable sagging; in addition, when the cables are shaken by external forces such as wind and human pulling, it is very easy to cause the device itself to shake, which not only affects the normal use of the cables, but may also cause damage to the device structure, reducing its service life and safety; therefore, improvements and treatments are needed based on the above problems. Summary of the Invention

[0004] The present invention overcomes the deficiencies of the prior art and proposes a temporary wire erection device with a cable sag height monitoring function; it solves the problem that the current temporary wire erection device has poor stability and cannot monitor cable sag.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solutions.

[0006] A temporary wire laying device with a cable sag height monitoring function comprises a base, a vertical support tube is rotatably arranged on the base through a slewing mechanism, a liftable fixed frame is arranged on the support tube through a lifting mechanism, a main support plate is fixedly arranged in the middle of the upper end of the fixed frame, and a secondary support plate is rotatably arranged at the front and rear ends of the main support plate respectively, and the two secondary support plates are connected to the fixed frame through an angle adjustment mechanism; two groups of left and right cable status monitoring mechanisms are arranged at the upper end of the main support plate, the cable status monitoring mechanism includes a pressure sensor, a positioning seat is arranged at the upper end of the pressure sensor, and a limiting roller is rotatably arranged inside the positioning seat; a cable position adjustment mechanism is arranged at the upper end of the secondary support plate, the cable position adjustment mechanism includes a slidable sliding seat, and the cable is controlled to slide by the sliding seat.

[0007] Furthermore, a universal wheel is provided at each of the four corners of the lower end surface of the base, and a retractable supporting foot is provided at each of the four corners of the lower end surface of the base.

[0008] Furthermore, the rotary mechanism includes a driven bevel gear, a driving bevel gear, a rocker, and a shell; the shell is fixedly provided in the middle of the upper end surface of the base, and the lower end of the support tube is rotatably inserted into the inside of the shell; the driven bevel gear is fixedly provided at the lower end of the support tube; a rocker is rotatably provided on the side wall of the shell, and the driving bevel gear is fixedly provided at one end inside the rocker, and the driving bevel gear is meshed with the driven bevel gear.

[0009] Furthermore, the lifting mechanism includes a first motor, a first screw rod, and a lifting cylinder; the first motor is fixedly arranged at the inner bottom surface of the support tube, and a vertical first screw rod is fixedly arranged on the output shaft of the first motor. A vertical lifting cylinder is screwed on the outer side of the first screw rod, and the upper end of the lifting cylinder extends to the outside of the upper end opening of the support tube, and the fixing frame is fixedly arranged on the upper end of the lifting cylinder; a vertical limit groove is provided on the inner wall of the support tube, and a vertical limit bar is provided on the outer wall of the lifting cylinder, and the limit bar is slidably engaged in the inside of the limit groove.

[0010] Furthermore, connecting plates are rotatably provided at the front and rear ends of the main support plate, the end of the front connecting plate away from the main support plate is fixedly connected to the front auxiliary support plate, and the end of the rear connecting plate away from the main support plate is fixedly connected to the rear auxiliary support plate; an ultrasonic sensor is provided at the lower end of the main support plate.

[0011] Furthermore, the angle adjustment mechanism includes a second motor, a second screw rod, a movable seat, and a telescopic arm; two symmetrical vertical first sliding grooves are provided on the side wall of the fixed frame; a second motor is fixedly provided on the inner bottom surface of the fixed frame, a vertical second screw rod is fixedly provided on the output shaft of the second motor, a movable seat is screwed on the outer side of the second screw rod, and two symmetrical first sliders are fixedly provided on the outer side surface of the movable seat, the two first sliders are slidably provided in the two first sliding grooves of the fixed frame, and a telescopic arm is respectively provided between the two first sliders and the secondary support plate on the same side.

[0012] Furthermore, the telescopic arm includes a first screw, a second screw, and an adjusting cylinder. The adjusting cylinder is arranged between the first slider and the auxiliary support plate. The adjusting cylinder is a cylindrical structure with openings at both ends, and the openings at both ends of the adjusting cylinder are provided with internal threads with opposite rotation directions; a first screw is rotatably arranged at one end of the outer side of the two first sliders, and the end of the first screw away from the first slider is screwed to the inside of one end of the opening of the adjusting cylinder; a second screw is screwed to the inside of the other end of the opening of the adjusting cylinder, and the second screw is rotatably arranged at the lower end of the auxiliary support plate on the same side away from the end of the adjusting cylinder.

[0013] Furthermore, the cable status monitoring mechanism also includes a connecting seat, a rotating frame, a connecting line, a moving block, and a resistance sensor; the pressure sensor is fixedly arranged on the upper end of the main support plate; a connecting seat is rotatably arranged on the upper end of the positioning seat; a limiting roller is also rotatably arranged inside the connecting seat, and a rotating frame is rotatably arranged on the outside of the positioning seat, and the rotating shaft of the rotating frame is fixedly connected to the rotating shaft of the limiting roller inside the positioning seat, and a resistance sensor is fixedly arranged on the upper end of the main support plate on one side of the pressure sensor; a connecting line is fixedly arranged on the outer arc surface of the rotating frame, and the end of the connecting line away from the rotating frame passes through the resistance sensor and is fixedly provided with a moving block.

[0014] Furthermore, the cable position adjustment mechanism also includes a guide plate, a transmission gear, a transmission rack, and a first spring; the guide plate is fixedly arranged on the upper end of the auxiliary support plate, and a transmission gear is rotatably arranged at the center of the bottom surface of the guide plate, and a transmission rack is slidably arranged on the front and rear sides of the guide plate; the two transmission racks are located on the front and rear sides of the transmission gear and are both engaged with the transmission gear; a connecting block is slidably arranged on the left and right sides of the guide plate, and the two connecting blocks are respectively fixedly connected to the ends of the two transmission racks; a first spring is respectively provided on the side of each connecting block away from the transmission gear, and the two ends of the first spring are respectively fixedly connected to the inner wall of the guide plate and the connecting block; two symmetrical second sliding grooves are provided on the top plate of the guide plate, and a second slider is fixedly provided on the upper ends of the two connecting blocks, and the two second sliders are respectively slidably connected to the inside of the two second sliding grooves.

[0015] Furthermore, the cable position adjustment mechanism also includes a roller seat, an abutment roller, and a second spring; the sliding seat is a U-shaped plate structure with a U-shaped opening facing upward, and the lower ends of the two sliding seats are fixedly connected to the upper ends of the two second sliders respectively, and two left-right symmetrical roller seats are arranged inside each sliding seat, and two front and rear guide rods are fixedly arranged on the end faces of the two roller seats that are away from each other, and two front and rear guide holes are provided on the left and right plates of the sliding seat, and the two guide rods on the roller seat are slidably inserted into the two guide holes on the same side; a second spring is sleeved on the outside of each guide rod, and the two ends of the second spring are respectively connected to the roller seat and the inner wall of the sliding seat; multiple front and rear abutment rollers are rotatably arranged inside each roller seat.

[0016] The beneficial effects of the present invention compared to the prior art are:

[0017] The present invention provides a rotating mechanism, which makes it easy to adjust the steering of the fixing frame according to the connection direction of the cable, thereby improving the movement efficiency and installation efficiency of the device; by providing an angle adjustment mechanism, it is easy to tilt the auxiliary support plates at the front and rear ends upward, thereby increasing the support point of the cable and improving the stability of the installed cable; by providing a cable state monitoring mechanism and an ultrasonic sensor, it is easy to monitor the highest point and sagging height of the cable, thereby improving the effect of real-time cable monitoring; the movement of the cable drives the limiting roller inside the positioning seat to rotate, the positioning seat drives the rotating frame to rotate, and the rotating frame pulls the moving block through the connecting line. When the moving block contacts the interference sensor, the rotating frame cannot continue to rotate, thereby making the limiting roller inside the positioning seat unable to continue to rotate. The friction between the limiting roller and the cable makes the cable unable to continue to slide, thereby achieving the effect of locking the cable; by providing a cable position adjustment mechanism, it is easy to ensure the stability of the cable installation point, and avoid the cable shaking causing the device to shake. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below with reference to the accompanying drawings:

[0019] Figure 1 It is a schematic structural diagram of the present invention as a whole;

[0020] Figure 2 It is a schematic diagram of the connection between the slewing mechanism and the lifting mechanism;

[0021] Figure 3 yes Figure 2 A partial enlarged schematic diagram of point A in the middle;

[0022] Figure 4 It is a structural diagram of the fixing frame and angle adjustment mechanism, cable status monitoring mechanism, and cable position adjustment mechanism;

[0023] Figure 5 It is a structural diagram of the angle adjustment mechanism;

[0024] Figure 6 This is a schematic diagram of the structure of the cable status monitoring mechanism Figure 1 ;

[0025] Figure 7 This is a schematic diagram of the structure of the cable status monitoring mechanism Figure 2 ;

[0026] Figure 8 1. It is a structural diagram of the cable position adjustment mechanism;

[0027] Figure 9 It is a partial structural diagram of the cable position adjustment mechanism;

[0028] Figure 10 It is a schematic diagram of the connection between the first spring, the transmission gear, the transmission rack, and the connecting block;

[0029] Among them, 1 is the base, 2 is the universal wheel, 3 is the support tube, 4 is the fixing frame, 5 is the supporting foot, 6 is the driven bevel gear, 7 is the driving bevel gear, 8 is the rocker, 9 is the housing, 10 is the first motor, 11 is the first screw rod, 12 is the lifting cylinder, 13 is the main support plate, 14 is the auxiliary support plate, 15 is the connecting plate, 16 is the second motor, 17 is the second screw rod, 18 is the moving seat, 19 is the first screw rod, 20 is the adjusting cylinder, 21 is the second screw rod, 22 is the rubber strip, 23 is the pressure sensor, 24 is the positioning seat, 25 is the connecting seat, 26 is the limiting roller, 27 is the rotating frame, 28 is the connecting line, 29 is the moving block, 30 is the contact sensor, 31 is the guide plate, 32 is the transmission gear, 33 is the transmission rack, 34 is the first spring, 35 is the sliding seat, 36 is the roller seat, 37 is the contact roller, 38 is the second spring, and 39 is the ultrasonic sensor. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail with reference to the embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention. The technical solutions of the present invention will be described in detail below with reference to the embodiments and the accompanying drawings, but the scope of protection is not limited thereto.

[0031] like Figure 1As shown in FIG10 , the present invention provides a temporary electric wire installation device with a cable sag height monitoring function, comprising a base 1, a vertical support tube 3 is rotatably provided on the base 1 through a rotary mechanism, a liftable fixed frame 4 is provided on the support tube 3 through a lifting mechanism, a main support plate 13 is fixedly provided in the middle of the upper end of the fixed frame 4, a secondary support plate 14 is rotatably provided at the front and rear ends of the main support plate 13 respectively, and the two secondary support plates 14 are connected to the fixed frame 4 through an angle adjustment mechanism; two groups of left and right cable status monitoring mechanisms are provided at the upper end of the main support plate 13, the cable status monitoring mechanism includes a pressure sensor 23, a positioning seat 24 is provided at the upper end of the pressure sensor 23, and a limiting roller 26 is rotatably provided inside the positioning seat 24; a cable position adjustment mechanism is provided at the upper end of the secondary support plate 14, the cable position adjustment mechanism includes a slidable sliding seat 35, and the cable is controlled to slide by the sliding seat 35.

[0032] The base 1 is a horizontally arranged square plate-like structure, with a universal wheel 2 disposed at each of the four corners of the lower end surface of the base 1. A retractable support foot 5 is also rotatably disposed at each of the four corners of the lower end surface of the base 1. A slot is also fixedly disposed on the lower end surface of the base plate on one side of the support foot 5. When the erection device needs to be moved, the four support feet 5 are controlled to retract so that the four universal wheels 2 contact the ground, and then the four support feet 5 are engaged in the four slots. At this point, the four universal wheels 2 can be used to control the movement of the erection device. When the erection device needs to be fixed, the four support feet 5 are kept vertical and then controlled to extend so that the four universal wheels 2 are separated from the ground, thereby fixing the erection device.

[0033] The slewing mechanism includes a driven bevel gear 6, a driving bevel gear 7, a rocker 8, and a housing 9. A square housing 9 is fixedly mounted in the middle of the upper end surface of the base 1. The lower end of the support tube 3 is pivotally inserted into the interior of the housing 9. The driven bevel gear 6 is fixedly mounted at the lower end of the support tube 3. A rocker 8 is pivotally mounted on the side wall of the housing 9. The rocker 8 includes a handle at one end and the driving bevel gear 7 is fixedly mounted at the inner end of the rocker 8, meshing with the driven bevel gear 6.

[0034] Turn the handle, the handle drives the active bevel gear 7 to rotate through the rocker 8, the active bevel gear 7 drives the driven bevel gear 6 to rotate, the driven bevel gear 6 drives the support tube 3 to rotate, and the support tube 3 drives the main support plate 13 and the auxiliary support plate 14 to rotate.

[0035] The lifting mechanism includes a first motor 10, a first screw rod 11, and a lifting cylinder 12. The first motor 10 is fixedly installed on the inner bottom surface of the support tube 3, and the output shaft of the first motor 10 is vertically upward. A vertical first screw rod 11 is fixedly installed on the output shaft of the first motor 10. A vertical lifting cylinder 12 is screwed to the outside of the first screw rod 11. The upper end of the lifting cylinder 12 extends to the outside of the upper end opening of the support tube 3, and the fixing frame 4 is fixed to the upper end of the lifting cylinder 12. A vertical limiting groove is provided on the inner wall of the support tube 3, and a vertical limiting bar is provided on the outer wall of the lifting cylinder 12. The limiting bar is slidably engaged with the inside of the limiting groove.

[0036] When the first motor 10 rotates, it drives the first screw rod 11 to rotate. Since the first screw rod 11 is screwed to the lifting cylinder 12, it drives the lifting cylinder 12 to slide inside the support tube 3. The limiting bar on the outside of the lifting cylinder 12 slides inside the limiting groove, thereby driving the fixing frame 4 to rise and fall.

[0037] The fixing frame 4 is a hollow vertical cylindrical structure. The lower end of the fixing frame 4 is fixedly connected to the upper end of the lifting cylinder 12, and the upper end of the fixing frame 4 is fixedly connected to the middle part of the lower end surface of the main support plate 13. The main support plate 13 is a horizontally arranged square plate-shaped structure, and the length direction of the main support plate 13 is arranged along the left-right direction. The auxiliary support plate 14 is a square plate-shaped structure, and the length direction of the auxiliary support plate 14 is arranged along the left-right direction. Two left-right symmetrical connecting plates 15 are rotatably arranged at the front and rear ends of the main support plate 13. The two front connecting plates 15 are fixedly connected to the front auxiliary support plate 14 at one end away from the main support plate 13, and the two rear connecting plates 15 are fixedly connected to the rear auxiliary support plate 14 at one end away from the main support plate 13.

[0038] An ultrasonic sensor 39, model Leuze DMU218, is installed at the lower end of the main support plate 13. When the lifting mechanism drives the fixing frame 4 and the main support plate 13 up and down, the ultrasonic sensor 39 detects the height of the main support plate 13, and thus the height of the cable.

[0039] The angle adjustment mechanism includes a second motor 16, a second screw rod 17, a movable seat 18, and a telescopic arm. Two symmetrical vertical first slide grooves are provided on the side wall of the fixed frame 4. A second motor 16 is fixedly provided on the inner bottom surface of the fixed frame 4, and the output shaft of the second motor 16 is vertically upward. A vertical second screw rod 17 is fixedly provided on the output shaft of the second motor 16, and the upper end of the second screw rod 17 is rotatably provided on the inner top surface of the fixed frame 4. A movable seat 18 is screwed on the outer side of the second screw rod 17, and two symmetrical first sliders are fixedly provided on the outer side surface of the movable seat 18. The two first sliders are slidably provided inside the two first slide grooves of the fixed frame 4, and the ends of the two first sliders away from the movable seat 18 extend to the outside of the fixed frame 4. A telescopic arm is provided between the two first sliders and the auxiliary support plate 14 on the same side. The telescopic arm includes a first screw 19, a second screw 21, and an adjusting cylinder 20. The adjusting cylinder 20 is arranged between the first slider and the auxiliary support plate 14. The adjusting cylinder 20 is a cylindrical structure with openings at both ends. The openings at both ends of the adjusting cylinder 20 are provided with internal threads with opposite rotation directions; a first screw 19 is rotatably provided at one end of the outer side of the two first sliders, and the end of the first screw 19 away from the first slider is screwed to the inside of one end of the opening of the adjusting cylinder 20; the second screw 21 is screwed to the inside of the other end of the opening of the adjusting cylinder 20, and the end of the second screw 21 away from the adjusting cylinder 20 is rotatably provided at the lower end of the auxiliary support plate 14 on the same side.

[0040] The second motor 16 rotates the second screw 17. Since the second screw 17 is threadedly connected to the movable base 18, the movable base 18 slides vertically. The movable base 18 drives the first sliders on both sides to slide synchronously. The first sliders on both sides drive the auxiliary support plate 14 to rotate via the telescopic arm. At the same time, the length of the telescopic arm can be adjusted by manually rotating the adjustment cylinder 20, thereby manually fine-tuning the angle of the auxiliary support plate 14.

[0041] The cable status monitoring mechanism further includes a connecting seat 25 , a rotating frame 27 , a connecting line 28 , a moving block 29 , and a contact sensor 30 .

[0042] The pressure sensor 23 is fixedly mounted on the upper end of the main support plate 13. The model number of the pressure sensor 23 is FP110. The positioning seat 24 is a U-shaped plate-like structure with an upward U-shaped opening. The connecting seat 25 is a U-shaped plate-like structure with a downward U-shaped opening. The upper end of the left side plate of the positioning seat 24 is rotatably connected to the lower end of the left side plate of the connecting seat 25. A limiting roller 26 is also rotatably mounted inside the connecting seat 25. The limiting rollers 26 inside the connecting seat 25 and the positioning seat 24 are both arranged horizontally in the left-right direction. A rotating rack 27 is rotatably mounted on the outer side of the right side plate of the positioning seat 24. The rotating shaft of the rotating rack 27 is fixedly connected to the rotating shaft of the limiting roller 26 inside the positioning seat 24. When the limiting roller 26 inside the positioning seat 24 rotates, the rotating rack 27 on the outer side rotates synchronously. A contact sensor 30 is fixedly mounted on the upper end of the main support plate 13 on one side of the pressure sensor 23. The model number of the contact sensor 30 is Omron D2F-01F. A connecting wire 28 is fixedly provided on the outer arc surface of the rotating frame 27 . An end of the connecting wire 28 away from the rotating frame 27 passes through the interference sensor 30 and is fixedly provided with a moving block 29 .

[0043] The cable position adjustment mechanism further includes a guide plate 31 , a transmission gear 32 , a transmission rack 33 , a first spring 34 , a roller seat 36 , an abutting roller 37 , and a second spring 38 .

[0044] The guide plate 31 is fixedly mounted on the upper end of the auxiliary support plate 14. The guide plate 31 is a square box-shaped structure, with its length extending horizontally. A transmission gear 32 is rotatably mounted at the center of the bottom surface of the guide plate 31. A transmission rack 33 is slidably mounted on the front and rear sides of the guide plate 31, each of which slides horizontally. Two transmission racks 33 are located on the front and rear sides of the guide plate 31, each meshing with the transmission gear 32. A connecting block is slidably mounted on the left and right sides of the guide plate 31. The left connecting block is fixedly connected to the left end of one transmission rack 33, while the right connecting block is fixedly connected to the right end of the other transmission rack 33. A first spring 34 is mounted on the side of each connecting block away from the transmission gear 32. The ends of the first spring 34 are fixedly connected to the inner wall of the guide plate 31 and the connecting block, respectively. Two symmetrical second chutes are mounted on the top plate of the guide plate 31, each horizontally extending horizontally. A second sliding block is fixedly provided on the upper ends of the two connecting blocks respectively, and the two second sliding blocks are slidably connected to the inside of the two second sliding grooves respectively.

[0045] A rubber strip 22 is fixedly installed on both the front and rear edges of the upper end face of the guide plate 31. The two rubber strips 22 are located on the front and rear sides of the sliding seat 35. The cross-section of the rubber strip 22 is triangular. The sliding seat 35 is a U-shaped plate-like structure with an upward-facing U-shaped opening. There are two sliding seats 35. The lower ends of the two sliding seats 35 are respectively fixedly connected to the upper ends of the two second sliders, and the lower end faces of the sliding seats 35 are in sliding contact with the upper end face of the guide plate 31. A rubber plate is fixedly installed on the inner top surface of the sliding seat 35, and the upper end of the rubber plate is flush with the upper end of the rubber strip 22. When the cable moves back and forth inside the sliding seat 35, the rubber strip 22 and the rubber plate can protect the cable and prevent damage caused by friction.

[0046] Each sliding seat 35 is equipped with two symmetrical roller seats 36. These roller seats 36 are U-shaped plates, with the U-shaped openings of the two roller seats 36 facing each other. Two front and rear guide rods are fixedly mounted on the end faces of the two roller seats 36 facing away from each other. The guide rods are arranged horizontally in the left and right directions. Two front and rear guide holes are provided on the left and right plates of the sliding seat 35. The two guide rods on the roller seats 36 slide into the two guide holes on the same side. A locking post is fixedly mounted on the end of each guide rod facing away from the roller seat 36. The outer diameter of the post is larger than the inner diameter of the guide hole and is located on the outside of the sliding seat 35. A second spring 38 is sleeved on the outside of each guide rod. The two ends of the second spring 38 are connected to the roller seat 36 and the inner wall of the sliding seat 35, respectively. Three front and rear abutment rollers 37 are rotatably mounted inside each roller seat 36, with the axis of the abutment rollers 37 remaining vertical.

[0047] The present invention also proposes a method for using a temporary electric wire installation device with a cable sag height monitoring function, comprising the following steps:

[0048] Step 1: First, use the universal wheels 2 to move the device to the desired position. Then, lower and extend the support legs 5 to lift the universal wheels 2 off the ground. Adjust the base 1 to a horizontal position by extending and retracting the support legs 5. Then, connect all electrical devices to the power cord. Turn the handle according to the direction of the cable connection, and adjust the horizontal angle of the support tube 3 using the swivel mechanism to ensure that the cable support bracket 4 is aligned with the cable direction.

[0049] Step 2: After the direction is adjusted, open the connecting seat 25 from the top and place the cable on the limiting roller 26 inside the positioning seat 24. Then, close the connecting seat 25 and place the two ends of the cable inside a pair of roller seats 36 on the same side of the front and rear auxiliary support plates 14, so that the cable is located between the two sets of abutment rollers 37. Then, rotate the adjustment cylinder 20. Since the adjustment cylinder 20 is screwed to the first screw 19 and the second screw 21, the length of the telescopic arm is adjusted, and the inclination angle of the auxiliary support plate 14 is preliminarily adjusted.

[0050] Step three, after the cable is installed, the lifting mechanism is used to control the lifting cylinder 12 to rise, thereby supporting the cable to rise. When the cable rises, the ultrasonic sensor 39 monitors the cable rising height in real time and adjusts the cable rising height according to the on-site height limit.

[0051] Step 4. When the cable shakes, the downward pressure at the highest point of the cable will increase. The pressure sensor 23 is used to detect whether the pressure value exceeds the threshold. When the threshold is exceeded, the second motor 16 is started. The second motor 16 drives the second screw rod 17 to rotate. Since the second screw rod 17 is screwed to the movable seat 18, the movable seat 18 is driven to slide in the vertical direction. The movable seat 18 drives the first sliders on both sides to slide synchronously. The first sliders on both sides drive the auxiliary support plate 14 to rotate upward through the telescopic arms, so that the auxiliary support plate 14 shares the pressure generated when the cable shakes.

[0052] Step 5: When the cables shake, they shift to one side, shifting the device's center of gravity. Both cables are clamped between a pair of roller seats 36. When one cable moves to one side, the cable drives the roller seat 36 in the same direction via the contact roller 37. The roller seat 36 then drives the sliding seat 35 in the same direction. The sliding seat 35 then drives the connecting block in the same direction via the second slider, which in turn drives the transmission rack 33 in the same direction. Because both transmission racks 33 are meshed with the transmission gear 32, when one transmission rack 33 slides to one side, the transmission gear 32 begins to rotate, driving the other transmission rack 33 to slide to the other side. The other transmission rack 33 then drives the other sliding seat 35 in the other direction via the second slider. The sliding seat 35 then drives the other cable in the other direction via the roller seat 36. This allows the two cables to simultaneously move closer to or farther from each other, maintaining balance and, therefore, the stability of the device. When the cables stop shaking, the rebound force of the first spring 34 restores the two cables to their original spacing.

[0053] Step 6: When the cable moves abnormally, the limit roller 26 at its lower end rotates, causing the rotating frame 27, which is fixedly connected to the limit roller 26 at the lower end, to rotate synchronously, thereby reeling in the connecting wire 28 and moving the moving block 29 toward the contact sensor 30 via the connecting wire 28. When the moving block 29 hits the contact sensor 30, the moving block 29 cannot move further due to contact with the contact sensor 30. Therefore, the connecting wire 28 cannot move further, and the rotating frame 27 is pulled by the connecting wire 28 and cannot continue to rotate. The limit roller 26 inside the positioning seat 24 also cannot continue to rotate. Due to the high friction between the cable and the limit roller 26, the cable cannot move further, and the cable reaches its maximum droop height. Therefore, when the contact sensor 30 detects the contact signal, it issues an early warning, notifying the cable status monitoring mechanism that the cable has reached its maximum droop height and prompting the staff to take timely action.

[0054] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A temporary power line installation device with a cable sag height monitoring function, characterized by: The invention comprises a base (1), a vertical support tube (3) is rotatably provided on the base (1) through a rotary mechanism, a liftable fixed frame (4) is provided on the support tube (3) through a lifting mechanism, a main support plate (13) is fixedly provided in the middle of the upper end of the fixed frame (4), and a secondary support plate (14) is rotatably provided at the front and rear ends of the main support plate (13), and the two secondary support plates (14) are connected to the fixed frame (4) through an angle adjustment mechanism; two groups of left and right cable status monitoring mechanisms are provided at the upper end of the main support plate (13), the cable status monitoring mechanisms include a pressure sensor (23), a positioning seat (24) is provided at the upper end of the pressure sensor (23), and a limiting roller (26) is rotatably provided inside the positioning seat (24); a cable position adjustment mechanism is provided at the upper end of the secondary support plate (14), the cable position adjustment mechanism includes a slidable sliding seat (35), and the cable is controlled to slide by the sliding seat (35); The angle adjustment mechanism comprises a second motor (16), a second screw rod (17), a movable seat (18), and a telescopic arm; two symmetrical vertical first sliding grooves are provided on the side wall of the fixed frame (4); the second motor (16) is fixedly provided on the inner bottom surface of the fixed frame (4); a vertical second screw rod (17) is fixedly provided on the output shaft of the second motor (16); a movable seat (18) is screwed on the outer side of the second screw rod (17); two symmetrical first sliding blocks are fixedly provided on the outer side surface of the movable seat (18); the two first sliding blocks are slidably provided in the two first sliding grooves of the fixed frame (4); and a telescopic arm is provided between the two first sliding blocks and the auxiliary support plate (14) on the same side.

2. A temporary electric wire installation device with a cable sag height monitoring function according to claim 1, characterized in that: A universal wheel (2) is provided at each of the four corners of the lower end surface of the base (1), and a retractable support foot (5) is also provided at each of the four corners of the lower end surface of the base (1).

3. The temporary electric wire installation device with cable sag height monitoring function according to claim 1, characterized in that: The rotary mechanism comprises a driven bevel gear (6), a driving bevel gear (7), a rocker (8), and a housing (9); the housing (9) is fixedly provided at the middle of the upper end surface of the base (1), and the lower end of the support tube (3) is rotatably inserted into the interior of the housing (9); the driven bevel gear (6) is fixedly provided at the lower end of the support tube (3); a rocker (8) is rotatably provided on the side wall of the housing (9), and the driving bevel gear (7) is fixedly provided at one end inside the rocker (8), and the driving bevel gear (7) is meshed with the driven bevel gear (6).

4. The temporary electric wire installation device with cable sag height monitoring function according to claim 1, characterized in that: The lifting mechanism comprises a first motor (10), a first screw rod (11), and a lifting cylinder (12); the first motor (10) is fixedly arranged on the inner bottom surface of the support tube (3); a vertical first screw rod (11) is fixedly arranged on the output shaft of the first motor (10); a vertical lifting cylinder (12) is screwed to the outer side of the first screw rod (11); the upper end of the lifting cylinder (12) extends to the outer side of the upper end opening of the support tube (3); and the fixing frame (4) is fixedly arranged on the upper end of the lifting cylinder (12); a vertical limiting groove is provided on the inner wall of the support tube (3); a vertical limiting strip is provided on the outer wall of the lifting cylinder (12); the limiting strip is slidably engaged in the inner side of the limiting groove.

5. The temporary electric wire installation device with cable sag height monitoring function according to claim 1, characterized in that: Connecting plates (15) are rotatably provided at the front and rear ends of the main support plate (13); an end of the front connecting plate (15) away from the main support plate (13) is fixedly connected to the front auxiliary support plate (14); an end of the rear connecting plate (15) away from the main support plate (13) is fixedly connected to the rear auxiliary support plate (14); and an ultrasonic sensor (39) is provided at the lower end of the main support plate (13).

6. The temporary electric wire installation device with cable sag height monitoring function according to claim 1, characterized in that: The telescopic arm comprises a first screw rod (19), a second screw rod (21), and an adjusting cylinder (20). The adjusting cylinder (20) is arranged between the first slider and the auxiliary support plate (14). The adjusting cylinder (20) is a cylindrical structure with two ends open. The openings at both ends of the adjusting cylinder (20) are provided with internal threads with opposite rotation directions. A first screw rod (19) is rotatably provided at one end of the outer side of each of the two first sliders. The end of the first screw rod (19) away from the first slider is screwed to the inside of one end opening of the adjusting cylinder (20). The other end opening of the adjusting cylinder (20) is screwed to the inside of the second screw rod (21). The end of the second screw rod (21) away from the adjusting cylinder (20) is rotatably provided at the lower end of the auxiliary support plate (14) on the same side.

7. The temporary electric wire installation device with cable sag height monitoring function according to claim 1, characterized in that: The cable status monitoring mechanism further comprises a connecting seat (25), a rotating frame (27), a connecting line (28), a moving block (29), and a contact sensor (30); the pressure sensor (23) is fixedly arranged on the upper end of the main support plate (13); the connecting seat (25) is rotatably arranged on the upper end of the positioning seat (24); a limiting roller (26) is also rotatably arranged inside the connecting seat (25), and a rotating frame (27) is rotatably arranged outside the positioning seat (24), the rotating shaft of the rotating frame (27) is fixedly connected to the rotating shaft of the limiting roller (26) inside the positioning seat (24), and the contact sensor (30) is fixedly arranged on the upper end of the main support plate (13) on one side of the pressure sensor (23); a connecting line (28) is fixedly arranged on the outer arc surface of the rotating frame (27), and the end of the connecting line (28) away from the rotating frame (27) passes through the contact sensor (30) and is fixedly provided with a moving block (29).

8. The temporary electric wire installation device with cable sag height monitoring function according to claim 1, characterized in that: The cable position adjustment mechanism further comprises a guide plate (31), a transmission gear (32), a transmission rack (33), and a first spring (34); the guide plate (31) is fixedly arranged on the upper end of the auxiliary support plate (14); a transmission gear (32) is rotatably arranged at the center of the bottom surface of the guide plate (31); and a transmission rack (33) is slidably arranged on the front and rear sides of the guide plate (31); the two transmission racks (33) are located on the front and rear sides of the transmission gear (32) and are both meshed with the transmission gear (32); ) is provided with a connecting block on the left and right sides of the interior thereof, and the two connecting blocks are fixedly connected to the ends of the two transmission racks (33) respectively; a first spring (34) is provided on the side of each connecting block away from the transmission gear (32), and the two ends of the first spring (34) are fixedly connected to the inner wall of the guide plate (31) and the connecting block respectively; two symmetrical second sliding grooves are provided on the top plate of the guide plate (31), and a second sliding block is fixedly provided on the upper end of the two connecting blocks, and the two second sliding blocks are slidably connected to the inside of the two second sliding grooves respectively.

9. The temporary electric wire installation device with cable sag height monitoring function according to claim 8, characterized in that: The cable position adjustment mechanism also includes a roller seat (36), an abutting roller (37), and a second spring (38); the sliding seat (35) is a U-shaped plate structure with a U-shaped opening facing upward, the lower ends of the two sliding seats (35) are fixedly connected to the upper ends of the two second sliding blocks, and two left-right symmetrical roller seats (36) are arranged inside each sliding seat (35), and two front and rear guide rods are fixedly arranged on the end faces of the two roller seats (36) away from each other. Two front and rear guide holes are provided on the left and right plates of the sliding seat (35), and the two guide rods on the roller seat (36) are slidably inserted into the two guide holes on the same side; a second spring (38) is sleeved on the outside of each guide rod, and the two ends of the second spring (38) are respectively connected to the roller seat (36) and the inner wall of the sliding seat (35); and multiple front and rear abutting rollers (37) are rotatably arranged inside each roller seat (36).

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