Temporary wire erecting device with cable droop height monitoring function

Abstract

The invention relates to a temporary electric wire erecting device with a cable sagging height monitoring function, and belongs to the technical field of temporary electric wire erecting tools. Comprising a base, a supporting pipe is rotationally arranged on the base through a rotating mechanism, a fixing frame is arranged on the supporting pipe through a lifting mechanism, a main supporting plate is fixedly arranged at the upper end of the fixing frame, the front end and the rear end of the main supporting plate are each rotationally provided with an auxiliary supporting plate, and the two auxiliary supporting plates are connected with the fixing frame through an angle adjusting mechanism; a left cable state monitoring mechanism and a right cable state monitoring mechanism are arranged at the upper end of the main supporting plate, each cable state monitoring mechanism comprises a pressure sensor, a positioning seat is arranged at the upper end of each pressure sensor, and a limiting roller is rotationally arranged in each positioning seat; a cable position adjusting mechanism is arranged at the upper end of the auxiliary supporting plate, the cable position adjusting mechanism comprises a slidable sliding seat, and a cable is controlled to slide through the sliding seat; the problems that an existing temporary electric wire erecting device is poor in stability and cable sagging cannot be monitored are solved.

Description

Technical Field

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

[0002] In today's society, power supply plays an indispensable role in various scenarios, and the demand for temporary power consumption is also increasing day by day; the erection of temporary wires is widely used in construction sites, outdoor large-scale events, disaster relief sites, and temporary maintenance operations, etc.; in construction sites, as the project progresses, the power demand in each construction stage has the characteristics of temporariness and stage; for example, in the foundation construction stage, power supply is required for pile driving equipment and concrete mixing equipment; in the main body construction stage, the power consumption of tower cranes, elevators, and various electric tools needs to be satisfied; due to the continuous change of the construction site, the power supply often depends on the erection of temporary wires. When holding outdoor large-scale events, such as music festivals, sports events, trade fairs, etc., in order to ensure the normal operation of on-site lighting, sound, stage equipment, and food stalls, etc., it is also necessary to temporarily build power lines.

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

[0004] The present invention overcomes the deficiencies of the prior art and provides a temporary wire erection device with a function of monitoring the sag height of a cable; it solves the problems of poor stability of the current temporary wire erection device and the inability to monitor cable sag.

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

[0006] A temporary wire erection device with a function of monitoring the drooping height of a cable, comprising a base. On the base, a vertical support pipe is rotatably arranged through a slewing mechanism. On the support pipe, a liftable fixing frame is arranged through a lifting mechanism. In the middle of the upper end of the fixing frame, a main support plate is fixedly arranged. At the front and rear ends of the main support plate, a secondary support plate is rotatably arranged respectively. The two secondary support plates are connected to the fixing frame through an angle adjustment mechanism. On the upper end of the main support plate, there are two groups of cable state monitoring mechanisms on the left and right. The cable state monitoring mechanism includes a pressure sensor. At the upper end of the pressure sensor, a positioning seat is arranged. Inside the positioning seat, a limiting roller is rotatably arranged. On the upper end of the secondary support plate, a cable position adjustment mechanism is arranged. The cable position adjustment mechanism includes a slidable sliding seat, and the cable is controlled to slide through the sliding seat.

[0007] Furthermore, at the four corners of the lower end surface of the base, a universal wheel is arranged respectively. At the four corners of the lower end surface of the base, a telescopic support foot is also arranged respectively.

[0008] Furthermore, the slewing mechanism includes a driven bevel gear, a driving bevel gear, a rocker, and a housing. In the middle of the upper end surface of the base, a housing is fixedly arranged. The lower end of the support pipe is rotatably inserted into the housing. At the lower end of the support pipe, a driven bevel gear is fixedly arranged. On the side wall of the housing, a rocker is rotatably arranged. At the inner end of the rocker, a driving bevel gear is fixedly arranged, and the driving bevel gear meshes with the driven bevel gear.

[0009] Furthermore, the lifting mechanism includes a first motor, a first lead screw, and a lifting cylinder. At the inner bottom surface of the support pipe, a first motor is fixedly arranged. On the output shaft of the first motor, a vertical first lead screw is fixedly arranged. A vertical lifting cylinder is screwed on the outer side of the first lead screw. The upper end of the lifting cylinder extends out of the upper end opening of the support pipe, and the fixing frame is fixedly arranged at the upper end of the lifting cylinder. On the inner wall of the support pipe, a vertical limiting groove is arranged. On the outer wall of the lifting cylinder, a vertical limiting strip is arranged, and the limiting strip is slidably clamped inside the limiting groove.

[0010] Furthermore, at the front end and the rear end of the main support plate, a connecting plate is rotatably arranged respectively. The end of the front connecting plate far away from the main support plate is fixedly connected to the front secondary support plate. The end of the rear connecting plate far away from the main support plate is fixedly connected to the rear secondary support plate. At the lower end of the main support plate, an ultrasonic sensor is arranged.

[0011] Further, the angle adjustment mechanism includes a second motor, a second lead screw, a moving seat, and a telescopic arm. Two symmetric vertical first chutes are provided on the side wall of the fixed frame. A second motor is fixedly provided at the inner bottom surface of the fixed frame. A vertical second lead screw is fixedly provided on the output shaft of the second motor. A moving seat is screwed outside the second lead screw. Two symmetric first sliders are fixedly provided on the outer side surface of the moving seat. The two first sliders are slidably arranged inside the two first chutes of the fixed frame. A telescopic arm is provided between each of the two first sliders and the secondary support plate on the same side.

[0012] Further, the telescopic arm includes a first screw rod, a second screw rod, and an adjustment cylinder. The adjustment cylinder is arranged between the first slider and the secondary support plate. The adjustment cylinder is a cylindrical structure with openings at both ends. The inner threads with opposite helix directions are provided inside the openings at both ends of the adjustment cylinder. A first screw rod is rotatably provided at the outer end of each of the two first sliders. The end of the first screw rod away from the first slider is screwed inside one of the openings at one end of the adjustment cylinder. A second screw rod is screwed inside the opening at the other end of the adjustment cylinder. The end of the second screw rod away from the adjustment cylinder is rotatably provided at the lower end of the secondary support plate on the same side.

[0013] Further, the cable state monitoring mechanism further includes a connecting seat, a rotating frame, a connecting wire, a moving block, and a contact sensor. The pressure sensor is fixedly provided at the upper end of the main support plate. A connecting seat is rotatably provided at the upper end of the positioning seat. A limiting roller is also rotatably provided inside the connecting seat. A rotating frame is rotatably provided outside the positioning seat. The rotating shaft of the rotating frame is fixedly connected to the rotating shaft of the limiting roller inside the positioning seat. A contact sensor is fixedly provided at the upper end of the main support plate on one side of the pressure sensor. A connecting wire is fixedly provided on the outer arc surface of the rotating frame. The end of the connecting wire away from the rotating frame passes through the contact sensor and is fixedly provided with a moving block.

[0014] Further, the cable position adjustment mechanism further includes a guiding plate, a driving gear, a driving rack, and a first spring. The guiding plate is fixedly provided at the upper end of the secondary support plate. A driving gear is rotatably provided at the center of the inner bottom surface of the guiding plate. A driving rack is slidably provided on the front and rear sides inside the guiding plate respectively. The two driving racks are located on the front and rear sides of the driving gear and are both meshed with the driving gear. A connecting block is slidably provided on the left and right sides inside the guiding plate respectively. The two connecting blocks are fixedly connected to the ends of the two driving racks respectively. A first spring is provided on the side of each connecting block away from the driving gear. The two ends of the first spring are fixedly connected to the inner wall of the guiding plate and the connecting block respectively. Two symmetric second chutes are provided on the top plate of the guiding plate. A second slider is fixedly provided at the upper end of each of the two connecting blocks. The two second sliders are respectively slidably connected inside the two second chutes.

[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 an upward U-shaped opening, the lower ends of the two sliding seats are respectively fixedly connected to the upper ends of the two second sliding blocks, 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 arranged 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; a plurality of front and rear abutment rollers are rotatably arranged inside each roller seat.

[0016] The beneficial effects of the present invention compared with the prior art are as follows: The present invention provides a slewing mechanism, which makes it easy to adjust the steering direction of the fixed 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 points 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 monitoring of the cable; 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, and 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 shaking of the cable causing the device to shake. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a connection diagram of the slewing mechanism and the lifting mechanism; Figure 3 yes Figure 2 A local enlarged schematic diagram of the middle A; Figure 4 It is a structural diagram of a fixing frame and an angle adjustment mechanism, a cable status monitoring mechanism, and a cable position adjustment mechanism; Figure 5 is a structural schematic diagram of the angle adjustment mechanism; Figure 6 This is a schematic diagram of the structure of the cable status monitoring mechanism. Figure One ; Figure 7It is a schematic structure of a cable status monitoring mechanism Figure Two ; Figure 8 It is a schematic structural diagram of a cable position adjustment mechanism; Figure 9 It is a partial structural schematic diagram of a cable position adjustment mechanism; Figure 10 It is a connection schematic diagram among the first spring, transmission gear, transmission rack, and connecting block; Among them, 1 is the base, 2 is the universal wheel, 3 is the support tube, 4 is the fixing frame, 5 is the support 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 lead screw, 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 lead screw, 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 wire, 29 is the moving block, 30 is the contact sensor, 31 is the guiding 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 abutting roller, 38 is the second spring, and 39 is the ultrasonic sensor. Specific implementation manners

[0018] In order to make the technical problems, technical solutions, and beneficial effects to be solved by the present invention clearer and more understandable, the present invention will be further described in detail in combination with embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. The technical solutions of the present invention will be described in detail below in combination with embodiments and the accompanying drawings, but the protection scope is not limited by this.

[0019] As Figure 1 -10 shows, the present invention provides a temporary wire erection device with a function of monitoring the sag height of a cable, including a base 1. A vertical support tube 3 is rotatably arranged on the base 1 through a slewing mechanism. A liftable fixing frame 4 is arranged on the support tube 3 through a lifting mechanism. A main support plate 13 is fixedly arranged in the middle of the upper end of the fixing frame 4. An auxiliary support plate 14 is rotatably arranged at the front and rear ends of the main support plate 13 respectively. The two auxiliary support plates 14 are connected to the fixing frame 4 through an angle adjustment mechanism; Two groups of cable status monitoring mechanisms are arranged 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 arranged at the upper end of the pressure sensor 23. A limiting roller 26 is rotatably arranged inside the positioning seat 24; A cable position adjustment mechanism is arranged at the upper end of the auxiliary support plate 14. The cable position adjustment mechanism includes a slidable sliding seat 35, and the cable is controlled to slide through the sliding seat 35.

[0020] The base 1 is a horizontally arranged square plate-like structure. At each of the four corners of the lower end surface of the base 1, a universal wheel 2 is respectively provided. At each of the four corners of the lower end surface of the base 1, a telescopic support leg 5 is also rotatably provided. On the lower end surface of the base plate on one side of the support leg 5, a card slot is fixedly provided. When the erection device needs to be moved, control the four support legs 5 to contract so that the four universal wheels 2 are in contact with the ground, and then snap the four support legs 5 into the four card slots. At this time, the erection device can be controlled to move through the four universal wheels 2; when the erection device needs to be fixed, keep the four support legs 5 vertical, and then control the four support legs 5 to extend so that the four universal wheels 2 are separated from the ground, thereby fixing the erection device.

[0021] 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 provided in the middle of the upper end surface of the base 1. The lower end of the support tube 3 is rotatably inserted into the housing 9. A 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. The rocker 8 includes a handle at its outer end. A driving bevel gear 7 is fixedly provided at the inner end of the rocker 8. The driving bevel gear 7 meshes with the driven bevel gear 6.

[0022] Rotate the handle, and the handle drives the driving bevel gear 7 to rotate through the rocker 8. The driving bevel gear 7 drives the driven bevel gear 6 to rotate. The driven bevel gear 6 drives the support tube 3 to rotate. The support tube 3 drives the main support plate 13 and the auxiliary support plate 14 to rotate.

[0023] The lifting mechanism includes a first motor 10, a first lead screw 11, and a lifting cylinder 12. The first motor 10 is fixedly provided at the inner bottom surface of the support tube 3. The output shaft of the first motor 10 is vertically upward. A vertical first lead screw 11 is fixedly provided on the output shaft of the first motor 10. A vertical lifting cylinder 12 is screwed on the outer side of the first lead screw 11. The upper end of the lifting cylinder 12 extends out of the upper end opening of the support tube 3. The fixing frame 4 is fixedly provided at 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 clamped inside the limiting groove.

[0024] When the first motor 10 rotates, it drives the first lead screw 11 to rotate. Since the first lead screw 11 is screwed with the lifting cylinder 12, it drives the lifting cylinder 12 to slide inside the support tube 3. The limiting strip on the outer side of the lifting cylinder 12 slides inside the limiting groove, thereby driving the fixing frame 4 to lift.

[0025] The fixing bracket 4 is a hollow vertical cylindrical structure. The lower end of the fixing bracket 4 is fixedly connected to the upper end of the lifting cylinder 12, and the upper end of the fixing bracket 4 is fixedly connected to the middle of the lower end surface of the main support plate 13. The main support plate 13 is a horizontally arranged square plate-like structure, and the length direction of the main support plate 13 is arranged along the left-right direction. The secondary support plate 14 is a square plate-like structure, and the length direction of the secondary support plate 14 is arranged along the left-right direction. Two symmetric connecting plates 15 are rotatably arranged at the front end and the rear end of the main support plate 13. One end of the two front connecting plates 15 away from the main support plate 13 is fixedly connected to the front secondary support plate 14, and one end of the two rear connecting plates 15 away from the main support plate 13 is fixedly connected to the rear secondary support plate 14.

[0026] An ultrasonic sensor 39 is arranged at the lower end of the main support plate 13, and the model of the ultrasonic sensor 39 is Leuze DMU218. When the lifting mechanism drives the fixing bracket 4 and the main support plate 13 to lift, the ultrasonic sensor 39 is used to detect the height of the main support plate 13, and then detect the rising height of the cable.

[0027] The angle adjustment mechanism includes a second motor 16, a second lead screw 17, a moving seat 18, and a telescopic arm. Two symmetric vertical first chutes are arranged on the side wall of the fixing bracket 4. A second motor 16 is fixedly arranged at the inner bottom surface of the fixing bracket 4, the output shaft of the second motor 16 is vertically upward, and a vertical second lead screw 17 is fixedly arranged on the output shaft of the second motor 16. The upper end of the second lead screw 17 is rotatably arranged at the inner top surface of the fixing bracket 4. A moving seat 18 is screwed on the outer side of the second lead screw 17. Two symmetric first sliders are fixedly arranged on the outer side surface of the moving seat 18, and the two first sliders are slidably arranged inside the two first chutes of the fixing bracket 4. One end of the two first sliders away from the moving seat 18 extends to the outside of the fixing bracket 4. A telescopic arm is respectively arranged between the two first sliders and the secondary support plate 14 on the same side. The telescopic arm includes a first screw 19, a second screw 21, and an adjustment cylinder 20. The adjustment cylinder 20 is arranged between the first slider and the secondary support plate 14. The adjustment cylinder 20 is a cylindrical structure with both ends open, and internal threads with opposite helix directions are arranged inside the openings at both ends of the adjustment cylinder 20. A first screw 19 is rotatably arranged at one end of the outer side of the two first sliders, and one end of the first screw 19 away from the first slider is screwed inside one end opening of the adjustment cylinder 20. A second screw 21 is screwed inside the other end opening of the adjustment cylinder 20, and one end of the second screw 21 away from the adjustment cylinder 20 is rotatably arranged at the lower end of the secondary support plate 14 on the same side.

[0028] The second motor 16 drives the second lead screw 17 to rotate. Since the second lead screw 17 is screwed to the moving seat 18, the moving seat 18 is driven to slide in the vertical direction. The moving seat 18 drives the first sliders on both sides to slide synchronously, and the first sliders on both sides drive the auxiliary support plate 14 to rotate through the telescopic arms. At the same time, by manually rotating the adjusting cylinder 20, the length of the telescopic arm can also be adjusted, so as to manually fine-tune the angle of the auxiliary support plate 14.

[0029] The cable state monitoring mechanism further includes a connecting seat 25, a rotating frame 27, a connecting wire 28, a moving block 29, and a contact sensor 30.

[0030] The pressure sensor 23 is fixedly arranged at the upper end of the main support plate 13, and the model of the pressure sensor 23 is FP110. The positioning seat 24 is a U-shaped plate structure with an upward U-shaped opening, and the connecting seat 25 is a U-shaped plate 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 arranged inside the connecting seat 25, and the limiting rollers 26 inside the connecting seat 25 and the positioning seat 24 are both horizontally arranged along the left-right direction. A rotating frame 27 is rotatably arranged outside the right side plate of the positioning seat 24, and 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. When the limiting roller 26 inside the positioning seat 24 rotates, it drives the outer rotating frame 27 to rotate synchronously. A contact sensor 30 is fixedly arranged at the upper end of the main support plate 13 on one side of the pressure sensor 23, and the model of the contact sensor 30 is Omron D2F-01F. A connecting wire 28 is fixedly arranged on the outer arc surface of the rotating frame 27, and one end of the connecting wire 28 away from the rotating frame 27 passes through the contact sensor 30 and is fixedly provided with a moving block 29.

[0031] The cable position adjusting mechanism further includes a guide plate 31, a transmission gear 32, a transmission rack 33, a first spring 34, a roller seat 36, a contact roller 37, and a second spring 38.

[0032] The guide plate 31 is fixedly arranged at the upper end of the auxiliary support plate 14. The guide plate 31 is of a square box structure, and the length direction of the guide plate 31 is arranged along the left - right direction. At the center of the inner bottom surface of the guide plate 31, a transmission gear 32 is rotatably arranged. On the front and rear sides inside the guide plate 31, a transmission rack 33 is respectively slidably arranged, and the transmission rack 33 slides along the left - right direction. The two transmission racks 33 are located on the front and rear sides of the transmission gear 32, and the transmission gear 32 meshes with both transmission racks 33. On the left and right sides inside the guide plate 31, a connecting block is respectively slidably arranged. The left - hand connecting block is fixedly connected to the left end of one of the transmission racks 33, and the right - hand connecting block is fixedly connected to the right end of the other transmission rack 33. On one side of each connecting block away from the transmission gear 32, a first spring 34 is respectively arranged. 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. On the top plate of the guide plate 31, two symmetrical second chutes are arranged, and the second chutes are horizontally arranged along the left - right direction. On the upper ends of the two connecting blocks, a second slider is respectively fixedly arranged, and the two second sliders are respectively slidably connected inside the two second chutes.

[0033] On the front and rear side edges of the upper end face of the guide plate 31, a rubber strip 22 is fixedly arranged respectively. The two rubber strips 22 are located on the front and rear sides of the sliding seat 35, and the cross - section of the rubber strip 22 is triangular. The sliding seat 35 is of a U - shaped plate - like structure with an upward - opening U - shape. The number of the sliding seats 35 is two. 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 face of the sliding seat 35 is in sliding contact with the upper end face of the guide plate 31. On the inner top surface of the sliding seat 35, a rubber plate is fixedly arranged, 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 cable can be protected by the rubber strip 22 and the rubber plate to prevent damage to the cable caused by friction.

[0034] In each sliding seat 35, two left - right symmetrical roller seats 36 are arranged. The roller seat 36 is of a U - shaped plate - like structure, and the U - shaped openings of the two roller seats 36 face each other. On the end faces of the two roller seats 36 away from each other, two front - rear guide rods are fixedly arranged, and the guide rods are horizontally arranged along the left - right direction. On the left - hand side plate and the right - hand side plate of the sliding seat 35, two front - rear guide holes are respectively arranged, and the two guide rods on the roller seat 36 are slidably inserted into the two guide holes on the same side. On the end of each guide rod away from the roller seat 36, an anti - detachment column is fixedly arranged. The outer diameter of the anti - detachment column is larger than the inner diameter of the guide hole, and the anti - detachment column is located outside the sliding seat 35. On the outside of each guide rod, a second spring 38 is sleeved, 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. In each roller seat 36, three front - rear abutting rollers 37 are rotatably arranged, and the axes of the abutting rollers 37 are kept vertical.

[0035] The present invention also provides a method for using a temporary wire erection device with a function of monitoring the sag height of a cable, comprising the following steps: Step 1: First, move the device to the required position through the universal wheels 2, then lower the support feet 5 and control the support feet 5 to extend, so that the universal wheels 2 are separated from the ground, and adjust the base 1 to a horizontal state by telescoping the support feet 5. Then connect the wires of all electrical devices and power them on; rotate the handle according to the cable connection direction, and adjust the horizontal angle of the support tube 3 through the slewing mechanism, so that the fixing frame 4 for supporting the cable is adapted to the direction of the cable.

[0036] Step 2: After the direction is adjusted, lift the connecting seat 25 from the upper end, place the cable on the limiting roller 26 inside the positioning seat 24, then cover the connecting seat 25, and then place the two ends of the cable on a pair of roller seats 36 on the same side of the front and rear auxiliary support plates 14 respectively, so that the cable is located between the two groups of abutting rollers 37. Then rotate the adjusting cylinder 20. Since the adjusting cylinder 20 is screwed with the first screw rod 19 and the second screw rod 21, the length of the telescopic arm is adjusted, and then the inclination angle of the auxiliary support plate 14 is preliminarily adjusted.

[0037] Step 3: After the cable is installed, control the lifting cylinder 12 to rise through the lifting mechanism, so as to realize the lifting of the supporting cable. When the cable rises, the ultrasonic sensor 39 is used to monitor the rising height of the cable in real time, and the rising height of the cable is adjusted according to the site height limit.

[0038] 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 it exceeds the threshold, start the second motor 16. The second motor 16 drives the second lead screw 17 to rotate. Since the second lead screw 17 is screwed with the moving seat 18, the moving seat 18 is driven to slide along the vertical direction. The moving 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 arm, so that the auxiliary support plate 14 shares the pressure generated when the cable shakes.

[0039] Step 5: When the cable shakes, the cable will move to one side, causing the center of gravity of the device to shift to one side. Since both cables are clamped between a pair of roller seats 36, when one of the cables moves to one side, the cable drives the roller seat 36 to move to the same side through the abutting roller 37. The roller seat 36 drives the sliding seat 35 to move to the same side. The sliding seat 35 drives the connecting block to slide to the same side through the second slider, and the connecting block drives the transmission rack 33 to slide to the same side. Since both transmission racks 33 are engaged with the transmission gear 32, when one of the transmission racks 33 slides to one side, the transmission gear 32 starts to rotate, driving the other transmission rack 33 to slide to the other side. The other transmission rack 33 drives the other sliding seat 35 to slide to the other side through the second slider, and the sliding seat 35 drives the other cable to slide to the other side through the roller seat 36, so that the two cables approach or move away from each other simultaneously, thus maintaining balance and further maintaining the stability of the device. After the cable stops shaking, under the resilience of the first spring 34, the two cables return to their initial spacing.

[0040] Step 6: When the cable moves abnormally, the limiting roller 26 at its lower end will rotate, causing the rotating frame 27 fixedly connected to the limiting roller 26 at the lower end to rotate synchronously, and then winding up the connecting line 28. The moving block 29 is moved towards the contact sensor 30 through the connecting line 28. When the moving block 29 touches the contact sensor 30, since the moving block 29 is in contact with the contact sensor 30 and cannot move further, the connecting line 28 cannot move further either. The rotating frame 27 is pulled by the connecting line 28 and cannot rotate further, and the limiting roller 26 inside the positioning seat 24 cannot rotate further either. Since the friction between the cable and the limiting roller 26 is large, the cable cannot move further either, and thus the cable reaches the maximum sag height. Therefore, when the contact sensor 30 detects the contact signal, it issues a warning, indicating that the cable status monitoring mechanism has detected that the cable has reached the maximum sag height, and prompting the staff to deal with it in time.

[0041] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A temporary wire erection device with a function of monitoring the sag height of a cable, characterized in that: It includes a base (1), on which a vertical support tube (3) is rotatably arranged through a slewing mechanism. On the support tube (3), a liftable fixing frame (4) is arranged through a lifting mechanism. In the middle of the upper end of the fixing frame (4), a main support plate (13) is fixedly arranged. On the front and rear ends of the main support plate (13), a secondary support plate (14) is respectively rotatably arranged. The two secondary support plates (14) are connected to the fixing frame (4) through an angle adjustment mechanism; On the upper end of the main support plate (13), there are two groups of cable state monitoring mechanisms on the left and right. The cable state monitoring mechanism includes a pressure sensor (23). On the upper end of the pressure sensor (23), a positioning seat (24) is arranged. Inside the positioning seat (24), a limiting roller (26) is rotatably arranged; On the upper end of the secondary support plate (14), a cable position adjustment mechanism is arranged. The cable position adjustment mechanism includes a slidable sliding seat (35), and the sliding of the cable is controlled through the sliding seat (35).

2. The temporary wire erection device with a function of monitoring the sag height of a cable according to claim 1, characterized in that: At the four corners of the lower end face of the base (1), a universal wheel (2) is respectively arranged. At the four corners of the lower end face of the base (1), a telescopic support leg (5) is also respectively arranged.

3. The temporary wire erection device with a function of monitoring the sag height of a cable according to claim 1, characterized in that: The slewing mechanism includes a driven bevel gear (6), a driving bevel gear (7), a rocker (8), and a housing (9); In the middle of the upper end face of the base (1), a housing (9) is fixedly arranged. The lower end of the support tube (3) is rotatably inserted into the inside of the housing (9); At the lower end of the support tube (3), a driven bevel gear (6) is fixedly arranged; On the side wall of the housing (9), a rocker (8) is rotatably arranged. At the inner end of the rocker (8), a driving bevel gear (7) is fixedly arranged, and the driving bevel gear (7) meshes with the driven bevel gear (6).

4. The temporary wire erection device with a function of monitoring the sag height of a cable according to claim 1, characterized in that: The lifting mechanism includes a first motor (10), a first lead screw (11), and a lifting cylinder (12); At the inner bottom surface of the support tube (3), a first motor (10) is fixedly arranged. On the output shaft of the first motor (10), a vertical first lead screw (11) is fixedly arranged. A vertical lifting cylinder (12) is screwed on the outside of the first lead screw (11). The upper end of the lifting cylinder (12) extends out of the upper end opening of the support tube (3), and the fixing frame (4) is fixedly arranged at the upper end of the lifting cylinder (12); On the inner wall of the support tube (3), a vertical limiting groove is arranged. On the outer wall of the lifting cylinder (12), a vertical limiting strip is arranged, and the limiting strip is slidably clamped inside the limiting groove.

5. The temporary wire erection device with a function of monitoring the sag height of a cable according to claim 1, characterized in that: On the front end and the rear end of the main support plate (13), a connecting plate (15) is respectively rotatably arranged. The end of the front connecting plate (15) far from the main support plate (13) is fixedly connected to the front secondary support plate (14). The end of the rear connecting plate (15) far from the main support plate (13) is fixedly connected to the rear secondary support plate (14); At the lower end of the main support plate (13), an ultrasonic sensor (39) is arranged.

6. The temporary wire erection device with a function of monitoring the sag height of a cable according to claim 1, characterized in that: The angle adjustment mechanism includes a second motor (16), a second lead screw (17), a moving seat (18), and a telescopic arm; two symmetric vertical first chutes are provided on the side wall of the fixed frame (4); a second motor (16) is fixedly arranged at the inner bottom surface of the fixed frame (4), a vertical second lead screw (17) is fixedly arranged on the output shaft of the second motor (16), a moving seat (18) is screwed on the outside of the second lead screw (17), two symmetric first sliders are fixedly arranged on the outer side surface of the moving seat (18), the two first sliders are slidably arranged inside the two first chutes of the fixed frame (4), and a telescopic arm is respectively arranged between each of the two first sliders and the secondary support plate (14) on the same side.

7. The temporary wire erection device with a cable sag height monitoring function according to claim 6, characterized in that: The telescopic arm includes 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 secondary support plate (14). The adjusting cylinder (20) is a cylindrical structure with openings at both ends. The inner threads with opposite helix directions are arranged inside the openings at both ends of the adjusting cylinder (20); a first screw rod (19) is rotatably arranged at the outer end of each of the two first sliders, and the end of the first screw rod (19) away from the first slider is screwed inside one of the openings at one end of the adjusting cylinder (20); a second screw rod (21) is screwed inside the opening at the other end of the adjusting cylinder (20), and the end of the second screw rod (21) away from the adjusting cylinder (20) is rotatably arranged at the lower end of the secondary support plate (14) on the same side.

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

9. The temporary wire erection device with a function of monitoring the sag height of a cable according to claim 1, characterized in that: The cable position adjustment mechanism further includes a guide plate (31), a transmission gear (32), a transmission rack (33), and a first spring (34); the guide plate (31) is fixedly arranged at the upper end of the secondary support plate (14), a transmission gear (32) is rotatably arranged at the center of the inner bottom surface of the guide plate (31), and a transmission rack (33) is slidably arranged on each of the front and rear sides inside 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 in mesh with the transmission gear (32); a connecting block is slidably arranged on each of the left and right sides inside the guide plate (31), and the two connecting blocks are respectively fixedly connected to the ends of the two transmission racks (33); a first spring (34) is arranged on the side of each connecting block away from the transmission gear (32), and the two ends of the first spring (34) are respectively fixedly connected to the inner wall of the guide plate (31) and the connecting block; two symmetric second chutes are arranged on the top plate of the guide plate (31), and a second slider is fixedly arranged on the upper end of each of the two connecting blocks, and the two second sliders are respectively slidably connected inside the two second chutes.

10. The temporary wire erection device with a function of monitoring the sag height of a cable according to claim 9, characterized in that: The cable position adjustment mechanism further 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 an upward U-shaped opening, the lower ends of the two sliding seats (35) are respectively fixedly connected to the upper ends of the two second sliders, two symmetric roller seats (36) are arranged inside each sliding seat (35), two front and rear guide rods are fixedly arranged on the end surfaces of the two roller seats (36) away from each other, and two front and rear guide holes are arranged on the left side plate and the right side plate 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 outside 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); a plurality of front and rear abutting rollers (37) are rotatably arranged inside each roller seat (36).

Images