A portable lifting device for high-altitude live power work

Abstract

The present application discloses a portable lifting device for high-altitude live-line power operations, including a lifter, a limit device and a support frame, wherein the limit device is installed on the lifter, and the support frame is installed below the lifter through an adjustment mechanism; when in use, the lifter is suitable for lifting the supported worker to a set height through the support frame, and then the limit device is suitable for cooperating with the power transmission line so that the lifter is limited to the power transmission line; the adjustment mechanism is suitable for adjusting the height and rotation of the support frame, thereby adjusting different postures of the worker. The beneficial effects of the present application: the lifter can be limited to the power transmission line through the limit device, and when the power transmission line is being repaired, the worker can adjust the height and rotation of the support frame through the adjustment mechanism, so that the different postures of the worker can be adjusted to meet different maintenance needs, greatly improving the convenience during maintenance.

Description

Technical Field

[0001] The present application relates to the technical field of electric power maintenance equipment, and in particular to a portable lifting device for high-altitude live electric power operations. Background Art

[0002] Overhead transmission lines are an important bridge connecting users and power suppliers, and they play a vital role in the power supply system. If a line fails, it may cause power outages, fires and other safety accidents, which will have a serious impact on people's production and life.

[0003] In the prior art, such as Figure 1 As shown, assuming that a fault occurs at B of the transmission line, and the transmission line is located between two towers, it is necessary to use a lifting device (i.e., a flying man) to climb up during maintenance. You can refer to the patent CN111807194A. However, there is a problem: the lifting device and the transmission line are connected by an (insulated) rope body, so when the staff enters the working position to work, their bodies are in a suspended state, their posture cannot be adjusted, and they may face away from the maintenance area. In addition, there is no riding position for the staff, which is very inconvenient. For this reason, a portable lifting device for high-altitude live power operations is proposed to solve the above technical problems. Summary of the invention

[0004] One of the purposes of the present application is to provide a portable lifting device for high-altitude live electric power operations.

[0005] To achieve the above objectives, the technical solution adopted in the present application is: a portable lifting device for high-altitude live power operations, comprising a lifter, a limit device and a support frame, wherein the limit device is installed on the lifter, and the support frame is installed below the lifter through an adjustment mechanism; when in use, the lifter is suitable for lifting the supported worker to a set height through the support frame, and then the limit device is suitable for cooperating with the power transmission line so that the lifter is limited to the power transmission line; the adjustment mechanism is suitable for adjusting the height and rotation of the support frame, thereby adjusting different postures of the worker; the limit device The device includes a slider, a hanging rod and a limiting structure. The slider is vertically slidably arranged on the side of the lifter and cooperates with the lifter through the limiting structure. The hanging rod is rotatably installed on the side of the slider, and a blocking rod is installed on the side of the lifter. When in use, the hanging rod is suitable for first moving up through the slider, and then the hanging rod is suitable for rotating and cooperating with the power transmission line through the end, and finally the limiting structure is suitable for locking the slider; when not in use, the hanging rod is suitable for first moving down through the slider, and then the hanging rod is suitable for rotating and abutting against the blocking rod, so that the hanging rod is folded, attached and stored in the side of the lifter.

[0006] Preferably, the adjustment mechanism includes a height adjustment device and a rotation adjustment device, the height adjustment device is installed at the bottom end of the lifter, the rotation adjustment device is installed at the bottom end of the height adjustment device, and the support frame is installed on the rotation adjustment device; the rotation adjustment device is suitable for driving the support frame to perform rotation adjustment, and the height adjustment device is suitable for driving the support frame and the rotation adjustment device to perform synchronous up and down adjustment.

[0007] Preferably, the height adjustment device includes a platform one, a screw rod, a screw sleeve and a driving device one, the platform one is vertically slidably installed on the bottom end of the lifter, the rotation adjustment device is installed on the bottom end of the platform one, the screw sleeve is rotatably installed in the platform one, the screw rod is vertically installed on the bottom end of the lifter and cooperates with the screw sleeve, the driving device one is installed on the platform one and the output end is cooperated and connected with the screw sleeve, so that the screw sleeve is suitable for driving the support frame to be adjusted up and down under the drive of the driving device one.

[0008] Preferably, the rotation adjustment device includes platform two and driving device two, platform two is rotatably installed at the bottom end of platform one, the support frame is installed on platform two, driving device two is installed on platform one and the output end is cooperatively connected with platform two, so that platform two is suitable for driving the support frame to be rotationally adjusted under the drive of driving device two.

[0009] Preferably, the driving device 1 includes a motor 1, a gear 1 and a gear 2, the motor 1 is installed on the platform 1 and the output end is installed with the gear 1, the gear 2 is sleeved and installed on the sleeve and meshes with the gear 1; the driving device 2 includes a motor 2, a gear 3 and a gear ring, the motor 2 is installed on the platform 1 and the output end is installed with the gear 3, the gear ring is installed inside the platform 2 and meshes with the gear 3.

[0010] Preferably, the support frame is a seat, and a pair of foot switches are symmetrically installed at the lower ends of the chair legs of the seat, and the foot switches are electrically connected and cooperated with the height adjustment device and the rotation adjustment device respectively.

[0011] Preferably, a support plate is installed at the lower end of the chair leg, and the foot switch includes a foot pedal, a first switch and a second switch, the foot pedal is elastically rotatably installed on the top of the support plate, the first switch and the second switch are installed on the top of the support plate and are located below the two ends of the support plate; when the foot pedal cooperates with the first switch, the height adjustment device and / or the rotation adjustment device performs a first action; when the foot pedal cooperates with the second switch, the height adjustment device and / or the rotation adjustment device performs a second action.

[0012] Preferably, the foot pedal and the support plate are matched through a limit assembly; the limit assembly is suitable for locking at least one of the foot pedals; the limit assembly includes a limit rod and a limit hole, the limit rod is horizontally slidably installed on the support plate and matched with the support plate through a clutch structure, the limit rod is located between the two foot pedals, and the limit hole is set on the foot pedal; when the limit rod is matched with the limit hole, the corresponding foot pedal is locked, and at this time the clutch structure is in a limited state, thereby keeping the limit rod stationary.

[0013] Preferably, the clutch structure includes a clutch block and three clutch slots, the clutch block is elastically slidably mounted on the support plate, and the clutch slot is arranged on the limiting rod; when the clutch block cooperates with the clutch slot, the clutch structure is in a limited state; when the clutch block is separated from the clutch slot, the clutch structure is in a separated state.

[0014] Compared with the prior art, the beneficial effects of this application are:

[0015] The present invention provides a limiting device and a support frame. After rising to a set height, the limiting device can limit the lifter on the transmission line, thereby preventing it from shaking greatly. When inspecting the transmission line, the staff can adjust the height and rotation of the support frame through the adjusting mechanism. In this way, the different postures of the staff can be adjusted, so that the support frame can be adjusted at multiple angles and heights according to the needs of the staff to adapt to different maintenance requirements, thereby greatly improving the convenience during maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram for use with existing lifters.

[0017] Figure 2 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 3 It is a schematic diagram of the improved lifter structure of the present invention.

[0019] Figure 4 It is a schematic diagram of the adjustment mechanism of the present invention.

[0020] Figure 5 It is a schematic diagram of driving device 1 and driving device 2 of the present invention.

[0021] Figure 6 It is a schematic diagram of the overall structure of the foot switch of the present invention.

[0022] Figure 7It is a schematic diagram of the specific structure of the foot switch of the present invention.

[0023] Figure 8 It is a schematic diagram of the principle of the pedal rotation of the present invention when cooperating with the first switch and the second switch.

[0024] Fig. 9 It is a schematic diagram of the limiting component of the present invention.

[0025] Fig.10 Schematic diagrams of three different positions of the limiting rod of the present invention.

[0026] Fig.11 It is a schematic diagram of the clutch structure of the present invention.

[0027] Fig.12 It is a schematic structural diagram of the limit device of the present invention when it is unfolded.

[0028] Fig.13 It is a schematic diagram of the enlarged structure of point D of the present invention.

[0029] Fig.14 It is a schematic diagram of the structure of the limiting device of the present invention when it is contracted.

[0030] In the figure: 1. lifter; 2. power transmission line; 3. adjustment mechanism; 301. height adjustment device; 3011. drive device 1; 30111. motor 1; 30112. gear 1; 30113. gear 2; 3012. platform 1; 3013. screw rod; 3014. screw sleeve; 302. rotation adjustment device; 3021. drive device 2; 30211. motor 2; 30212. gear 3; 30213. gear ring; 3022 , platform 2; 4, support frame; 401, seat; 4011, chair leg; 5, limit device; 501, slider; 502, hanging rod; 503, limit structure; 6, support plate; 7, telescopic rod; 8, foot switch; 801, foot pedal; 802, first switch; 803, second switch; 9, limit assembly; 901, limit rod; 902, limit hole; 10, clutch structure; 1001, clutch block; 1002, clutch slot; 11, stop rod. DETAILED DESCRIPTION

[0031] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0032] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific scope of protection of the present application.

[0033] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0034] In the prior art, Figure 1 As shown, suppose there is a fault at B of the transmission line, and the transmission line 2 is located between two towers, so the operation method of "drone + flying man (i.e., lifter 1 or lifting device)" is needed. Specifically: first, the (insulated) rope end of the lifter 1 is hung at A of the transmission line 2 by the drone, and then the staff can ascend, descend and hover on the suspended rope through the lifter 1 to help the staff with the high-altitude operation. With "it", when the staff go to high altitude to work, it is like taking a "sightseeing elevator" to get there quickly and directly, which greatly improves the work efficiency. However, the existing lifter 1 still has the following shortcomings:

[0035] (1) The lifter 1 has no supporting structure, and the worker is suspended from the lifter 1 by a safety rope, which makes the worker less comfortable during the ascent. (2) When the worker enters the working position, his body is in a suspended state and his posture cannot be adjusted. He may turn his back to the maintenance area, which affects the maintenance efficiency.

[0036] Therefore, the inventor of the present application has developed a portable lifting device for high-altitude live power operations, such as Figures 1 to 14 As shown, it includes a lifter 1, a limiting device 5 and a support frame 4, wherein the limiting device 5 is installed at the side of the lifter 1, and the support frame 4 is installed below the lifter 1 through an adjustment mechanism 3.

[0037] It can be understood that when in use, the support frame 4 can support the staff, and the lifter 1 can raise the supported staff to a set or appropriate height, and then the staff will cooperate with the limit device 5 and the transmission line 2, so that the lifter 1 can be limited on the transmission line 2, so that the lifter 1 will not rotate arbitrarily; when inspecting the transmission line 2, the staff can adjust the height and rotation of the support frame 4 through the adjustment mechanism 3, so that the different postures of the staff can be adjusted, so that the support frame 4 can be adjusted at multiple angles and heights according to the needs of the staff to adapt to different maintenance needs, which greatly improves the convenience during maintenance.

[0038] As a further description of the above embodiment: Figure 3 As shown, the adjustment mechanism 3 includes a height adjustment device 301 and a rotation adjustment device 302 . The height adjustment device 301 is installed at the bottom end of the lifter 1 , the rotation adjustment device 302 is installed at the bottom end of the height adjustment device 301 , and the support frame 4 is installed at the rotation adjustment device 302 .

[0039] It can be understood that when making adjustments, the rotation adjustment device 302 can drive the support frame 4 to rotate, thereby adjusting the angle of the support frame 4; and the height adjustment device 301 can drive the support frame 4 and the rotation adjustment device 302 to move up and down synchronously, thereby realizing the up and down adjustment of the support frame 4.

[0040] In one of the embodiments of the present application, Figure 4 As shown, the height adjustment device 301 includes a platform 3012, a screw rod 3013, a screw sleeve 3014 and a driving device 3011. The platform 3012 is vertically slidably installed at the bottom end of the lifter 1, the rotation adjustment device 302 is installed at the bottom end of the platform 3012, the screw sleeve 3014 is rotatably installed in the platform 3012, the screw rod 3013 is vertically fixedly installed at the bottom end of the lifter 1 and cooperates with the screw sleeve 3014, and the driving device 3011 is installed on the platform 3012 and the output end is cooperated and connected with the screw sleeve 3014.

[0041] Specifically, Figure 4 As shown, platform 1 3012 is disc-shaped, and the screw sleeve 3014 is rotatably installed at the center of platform 1 3012. The screw rod 3013 passes through the screw sleeve 3014 and cooperates with the screw sleeve 3014 through a thread. Platform 1 3012 can be installed at the bottom end of the lifter 1 through the telescopic rod 7, and then under the action of the telescopic rod 7, platform 1 3012 can only move up and down in the vertical direction.

[0042] It can be understood that when adjusting, the driving device 3011 is started, and the driving device 3011 can drive the screw sleeve 3014 to rotate. Through the cooperation of the screw sleeve 3014 and the screw rod 3013, the platform 3012 can be moved up and down along the screw rod 3013 to adjust the support frame 4 up and down.

[0043] like Figure 5 As shown, the driving device 1 3011 includes a motor 1 30111, a gear 1 30112 and a gear 2 30113. The motor 1 30111 is mounted on the platform 1 3012 and the output end is mounted with the gear 1 30112. The gear 2 30113 is sleeved and mounted on the outside of the screw sleeve 3014 and meshes with the gear 1 30112. It should be known that the motor 1 30111 drives the gear 1 30112 to rotate, the gear 1 30112 acts on the gear 2 30113 to rotate, and the gear 2 30113 can drive the screw sleeve 3014 to rotate.

[0044] In one of the embodiments of the present application, Figure 4 As shown, the rotation adjustment device 302 includes a second platform 3022 and a second driving device 3021. The second platform 3022 is rotatably mounted on the bottom end of the first platform 3012, the support frame 4 is mounted on the second platform 3022, and the second driving device 3021 is mounted on the first platform 3012, and the output end is matched and connected with the second platform 3022. It can be understood that when adjusting, the second driving device 3021 is started, and the second driving device 3021 can drive the second platform 3022 to perform rotation adjustment, that is, the rotation adjustment of the support frame 4 is realized.

[0045] like Figure 5 As shown, the second driving device 3021 includes a second motor 30211, a third gear 30212 and a gear ring 30213. The second motor 30211 is installed on the first platform 3012 and the output end is installed with the third gear 30212. The second platform 3022 is also a disc-shaped structure, and a circular groove is provided at its center, and the gear ring 30213 is fixedly installed in the circular groove and meshes with the third gear 30212. It should be known that the second motor 30211 can drive the third gear 30212 to rotate, and the third gear 30212 acts on the gear ring 30213 to rotate, and the gear ring 30213 can drive the second platform 3022 to rotate, thereby realizing the rotation adjustment of the support frame 4.

[0046] It should be noted that when working at high altitude, the hands of the workers are usually needed to pick up tools and perform other operations; and the activation of the adjustment mechanism 3 is operated by a switch, which is very inconvenient for the workers. Of course, the workers on the ground can remotely control to activate the adjustment mechanism 3, but this requires real-time feedback from the workers on the transmission line 2, which is not flexible.

[0047] Therefore, in order to solve the above technical problems, in one embodiment of the present application, Figure 3 and Figure 6 As shown, the support frame 4 can adopt a seat 401, and a pair of foot switches 8 are symmetrically installed at the lower ends of the legs 4011 of the seat 401, and the two foot switches 8 are electrically connected and cooperated with the corresponding height adjustment device 301 and the rotation adjustment device 302 respectively.

[0048] That is, one foot switch 8 corresponds to the height adjustment device 301, and the other foot switch 8 corresponds to the rotation adjustment device 302, so that the worker can sit on the seat 401, and then control the two foot switches 8 with both feet, and then the two adjustment devices can be portable controlled, so as to achieve the height and rotation adjustment of the support frame 4. This design not only improves the convenience of operation, but also allows the worker to use tools freely with both hands when working at high altitude, greatly improving the work efficiency and safety.

[0049] Specifically, Figure 3 and Figure 7 As shown, a support plate 6 is installed at the lower end of the chair leg 4011, and the foot switch 8 includes a foot pedal 801, a first switch 802 and a second switch 803. The foot pedal 801 is elastically rotatably installed on the top of the support plate 6 (via a torsion spring and a rotating shaft), and the first switch 802 and the second switch 803 are installed on the top of the support plate 6 and are located below the two ends of the support plate 6.

[0050] It is understandable that if Figure 7 As shown, we assume that the first switch 802 and the second switch 803 on the left are electrically connected to the motor 1 30111, and the first switch 802 and the second switch 803 on the right are electrically connected to the motor 2 30211. Figure 8 As shown, the staff's feet are located on the foot pedal 801. When the foot pedal 801 rotates and cooperates with the first switch 802, the height adjustment device 301 and / or the rotation adjustment device 302 perform the first action. Specifically: when the left foot pedal 801 rotates and squeezes the first switch 802, the height adjustment device 301 performs the first action; when the right foot pedal 801 rotates and squeezes the first switch 802, the rotation adjustment device 302 performs the first action; when the two foot pedals 801 rotate and squeeze the two first switches 802 at the same time, the two adjustment devices perform the first action at the same time. Similarly, when the foot pedal 801 rotates and cooperates with the second switch 803, the height adjustment device 301 and / or the rotation adjustment device 302 perform the second action.

[0051] It should be noted that the first action and the second action here can be understood as follows: for the height adjustment device 301: the first action is the forward rotation of the motor 1 30111, which can drive the seat 401 to move up; similarly, the second action is the reverse rotation of the motor 1 30111, which can drive the seat 401 to move down. For the rotation adjustment device 302: the first action is the forward rotation of the motor 2 30211, which can drive the seat 401 to rotate clockwise; similarly, the second action is the reverse rotation of the motor 2 30211, which can drive the seat 401 to rotate counterclockwise.

[0052] Based on the above embodiments, during the specific adjustment process, the following problem may occur: since the high altitude is not very stable, the staff may not make adjustments when no adjustments are needed. Figure 6 As shown, the foot can be placed in other areas of the support plate 6 (i.e., away from the foot switch 8), but it is also possible to accidentally touch the foot switch 8 during operation, thereby affecting the maintenance work. When adjusting one direction, such as adjusting the height, the other foot may also touch another foot switch 8, causing the previously adjusted angle to deflect again, thereby affecting the adjustment of the posture.

[0053] Therefore, in order to solve the above technical problems, in one embodiment of the present application, Fig. 9 and Fig.10 As shown, the foot pedal 801 cooperates with the support plate 6 through the limit assembly 9. It can be understood that the limit assembly 9 can lock at least one foot pedal 801, that is, the locking of the foot pedal 801 by the limit assembly 9 is divided into three situations: (i) the limit assembly 9 locks the left foot pedal 801, such as Fig.10 (c) as shown in FIG. 2 ; (ii) the limit assembly 9 locks the right foot pedal 801, as shown in FIG. Fig.10 (b) as shown in FIG. 3; (iii) the limit assembly 9 locks the two pedals 801 simultaneously, as shown in FIG. Fig.10 As shown in (a) in .

[0054] That is to say, when no adjustment is needed, the two pedals 801 can be locked at the same time by the limit assembly 9. When adjusting, only one of the adjustment devices can be adjusted, and the two adjustment devices will not be adjusted at the same time; this can effectively avoid misoperation and ensure the accuracy and safety of adjustment.

[0055] Specifically, Fig. 9As shown, the limiting assembly 9 includes a limiting rod 901 and a limiting hole 902. The limiting rod 901 is horizontally slidably mounted on the support plate 6 and cooperates with the support plate 6 through the clutch structure 10. The limiting rod 901 is located between the two foot pedals 801, and the limiting hole 902 is provided on the foot pedal 801. Further, preferably, a pair of limiting rods 901 are provided, and are symmetrically distributed at the rotation center of the foot pedal 801, and left-right symmetrical push plates are formed at the top of the two limiting rods 901. When the foot pedal 801 is not subjected to other external forces, that is, under the action of its own elastic force, the limiting hole 902 on the foot pedal 801 is in a corresponding state with the limiting rod 901.

[0056] It is understandable that if Fig.10 As shown in (a) in FIG. 1 , at this time, both ends of the limit rod 901 are respectively inserted into the limit holes 902 of the two foot pedals 801, thereby locking the two foot pedals 801. Fig.10 As shown in (b) in FIG. 1 , if the left foot wants to operate the left foot pedal 801, the left foot can first be used to push against the push plate with the side of the left foot, and then the limit rod 901 can be pushed to the right to the limit position, so that the limit rod 901 is separated from the limit hole 902 of the left foot pedal 801. Fig.10 As shown in (c), assuming that the right foot wants to operate the right foot pedal 801 at this time, the side of the right foot can be used to resist the push plate, and then the limit rod 901 can be pushed to the left to the limit position, so that the limit rod 901 is separated from the limit hole 902 of the right foot pedal 801.

[0057] It should be known that if Fig.10 As shown, the limit rod 901 has only three specific positions, that is, when the limit rod 901 stays at the set position and cooperates with the limit hole 902, the corresponding foot pedal 801 can be locked. At this time, the clutch structure 10 is in a limited state, so that the limit rod 901 remains stationary; that is, the limit rod 901 will not move under the normal shaking of the lifter 1, and can always maintain the moved state.

[0058] Specifically, Fig.11 As shown, the clutch structure 10 includes a clutch block 1001 and three clutch slots 1002. The clutch block 1001 is elastically slidably mounted on the support plate 6 (via a spring), and the clutch slots 1002 are arranged on the limiting rod 901. Specifically, the clutch block 1001 is spherical, and the clutch slots 1002 are hemispherical.

[0059] It can be understood that when the clutch block 1001 is engaged with the clutch groove 1002, the clutch structure 10 is in a limited position state; when the limit rod 901 is subjected to a large external force, the clutch block 1001 will slide and forcibly separate from the clutch groove 1002, and at this time the clutch structure 10 will be in a separated state. Of course, the three clutch grooves 1002 correspond to Fig.10 three different positions of the limit rod 901 in the middle, that is, the clutch block 1001 is engaged with the corresponding clutch groove 1002.

[0060] In one embodiment of the present application, as Figure 12 to Figure 14 shown, the limiting device 5 includes a slider 501, a hanging rod 502 and a limiting structure 503. The slider 501 is vertically slidably arranged on the side of the lifter 1 and is cooperated with the lifter 1 through the limiting structure 503. The hanging rod 502 is rotatably installed on the side of the slider 501, and a stop rod 11 is installed on the side of the lifter 1.

[0061] Specifically, the limiting structure 503 includes a limiting screw. A plurality of limiting grooves can be provided on the side of the lifter 1. By rotating the limiting screw until it is inserted into the limiting groove, the slider 501 can be locked. The stop rod 11 has a "C"-shaped structure.

[0062] It can be understood that, as Fig.14 shown, it is a state diagram when the hanging rod 502 is retracted. During use, first move the hanging rod 502 upward through the slider 501, then rotate the hanging rod 502 so that the hook part at the top of the hanging rod 502 is suspended and cooperated with the corresponding transmission line 2, and finally lock the slider 501 through the limiting structure 503. As Figure 2 shown, we set the suspension point of the hanging rod 502 and the transmission line 2 as C, and the connection point of the insulating rope body of the lifter 1 and the transmission line 2 itself as A. In this way, the limiting of the lifter 1 can be realized through the limiting of points A and C, so that the lifter 1 will not shake greatly.

[0063] When not in use, first unlock the slider 501, then the hanging rod 502 can be moved downward through the slider 501, and at the same time the hanging rod 502 can be rotated towards the lifter 1, and the stop rod 11 can limit the rotated hanging rod 502, so that the hanging rod 502 is folded and attached and stored on the side of the lifter 1, as Fig.14 shown, thus saving space and being convenient to carry.

[0064] The working principle of the present invention is:

[0065] First, the insulating rope of the lifter 1 is hung on the A of the power transmission line 2 by the drone, and then the worker sits on the seat 401 and connects the safety rope on the body to the lifter 1. Of course, an anti-fall rope can also be hung on the power transmission line 2 by the drone, and the anti-fall rope is connected to the worker, thereby further improving safety. Finally, the worker can operate the throttle handle on the lifter 1 to make the worker rise to a suitable height.

[0066] At this time, the staff can move the hanging rod 502 upwards through the slider 501, and then rotate the hanging rod 502 so that the hook part at the top of the hanging rod 502 is suspended and matched with the corresponding transmission line 2 (i.e., point C), thereby limiting the lifter 1 so that the lifter 1 will not shake too much; then the staff can take out the tools and repair the fault point B of the transmission line 2.

[0067] When the posture needs to be adjusted during maintenance, assuming that height adjustment is required, that is, the left foot pedal 801 needs to be operated at this time, such as Fig.10 As shown in (b), the side of the left foot can be used to resist the push plate, and then the limit rod 901 can be pushed to the right to the limit position, so that the limit rod 901 is separated from the limit hole 902 of the left foot pedal 801, and then the left foot pedal 801 is applied with the foot and rotated, so that the left foot pedal 801 cooperates with the first switch 802 or the second switch 803, and then the motor 1 30111 rotates forward or reverse, and the screw sleeve 3014 rotates through the action of the gear 1 30112 and the gear 2 30113, and the platform 1 3012 can be moved up and down along the screw rod 3013 through the cooperation of the screw sleeve 3014 and the screw rod 3013, that is, the up and down adjustment of the staff can be achieved. Similarly, when the right foot operates the right foot pedal 801, the rotation angle adjustment of the staff can be achieved. This greatly improves the convenience and efficiency of the entire maintenance process.

[0068] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. A portable lifting device for high-altitude live power operations, characterized in that: include: Lifter; A limiting device, the limiting device is installed on the lifter; as well as A support frame, the support frame is installed below the lifter through an adjustment mechanism; when in use, the lifter is suitable for lifting the supported staff to a set height through the support frame, and then the limit device is suitable for cooperating with the power transmission line so that the lifter is limited to the power transmission line; the adjustment mechanism is suitable for adjusting the height and rotation of the support frame, thereby adjusting different postures of the staff; The limiting device includes a slider, a hanging rod and a limiting structure, the slider is vertically slidably arranged on the side of the lifter and cooperates with the lifter through the limiting structure, the hanging rod is rotatably installed on the side of the slider, and a blocking rod is installed on the side of the lifter; when in use, the hanging rod is suitable for first moving up through the slider, then the hanging rod is suitable for rotating and cooperating with the power transmission line through the end, and finally the limiting structure is suitable for locking the slider; when not in use, the hanging rod is suitable for first moving down through the slider, then the hanging rod is suitable for rotating and abutting against the blocking rod, so that the hanging rod is folded, attached and stored on the side of the lifter; The adjustment mechanism includes a height adjustment device and a rotation adjustment device, wherein the height adjustment device is installed at the bottom end of the lifter, the rotation adjustment device is installed at the bottom end of the height adjustment device, and the support frame is installed at the rotation adjustment device; the rotation adjustment device is suitable for driving the support frame to perform rotation adjustment, and the height adjustment device is suitable for driving the support frame and the rotation adjustment device to perform synchronous up and down adjustment; The height adjustment device includes a platform 1, a screw rod, a screw sleeve and a driving device 1, wherein the platform 1 is vertically slidably installed at the bottom end of the lifter, the rotation adjustment device is installed at the bottom end of the platform 1, the screw sleeve is rotatably installed in the platform 1, the screw rod is vertically installed at the bottom end of the lifter and cooperates with the screw sleeve, the driving device 1 is installed on the platform 1 and the output end is cooperated and connected with the screw sleeve, so that the screw sleeve is suitable for driving the support frame to adjust up and down under the drive of the driving device 1; The rotation adjustment device includes a second platform and a second driving device. The second platform is rotatably mounted at the bottom end of the first platform. The support frame is mounted on the second platform. The second driving device is mounted on the first platform and the output end is matched and connected with the second platform. Thus, the second platform is suitable for driving the support frame to rotate and adjust under the drive of the second driving device. The support frame is a seat, and a pair of foot switches are symmetrically installed at the lower ends of the chair legs of the seat, and the foot switches are electrically connected and cooperated with the height adjustment device and the rotation adjustment device respectively; A support plate is installed at the lower end of the chair leg, and the foot switch includes a foot pedal, a first switch and a second switch. The foot pedal is elastically rotatably installed on the top of the support plate, and the first switch and the second switch are installed on the top of the support plate and are located below the two ends of the support plate; the foot pedal and the support plate are matched through a limit assembly; the limit assembly is suitable for locking at least one of the foot pedals.

2. The portable lifting device for high-altitude live power work according to claim 1, characterized in that: The driving device 1 includes a motor 1, a gear 1 and a gear 2. The motor 1 is installed on the platform 1 and the output end is installed with the gear 1. The gear 2 is sleeved and installed on the screw sleeve and meshes with the gear 1. The second driving device includes a second motor, a third gear and a gear ring. The second motor is installed on the first platform and the output end is equipped with the third gear. The gear ring is installed inside the second platform and meshes with the third gear.

3. The portable lifting device for high-altitude live power work according to claim 2, characterized in that: When the foot pedal cooperates with the first switch, the height adjustment device and / or the rotation adjustment device performs a first action; when the foot pedal cooperates with the second switch, the height adjustment device and / or the rotation adjustment device performs a second action.

4. The portable lifting device for high-altitude live power work according to claim 3, characterized in that: The limit assembly includes a limit rod and a limit hole. The limit rod is horizontally slidably installed on the support plate and cooperates with the support plate through a clutch structure. The limit rod is located between the two foot pedals, and the limit hole is set on the foot pedal. When the limit rod cooperates with the limit hole, the corresponding foot pedal is locked, and the clutch structure is in a limited state at this time, thereby keeping the limit rod stationary.

5. The portable lifting device for high-altitude live power work according to claim 4, characterized in that: The clutch structure includes a clutch block and three clutch slots, the clutch block is elastically slidably mounted on the support plate, and the clutch slot is arranged on the limiting rod; when the clutch block cooperates with the clutch slot, the clutch structure is in a limited state; when the clutch block is separated from the clutch slot, the clutch structure is in a separated state.

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