A rescue ladder for power grid maintenance

Abstract

The application discloses a repair ladder for power grid maintenance and relates to the technical field of power grid maintenance.The repair ladder comprises a ladder column and a foot support mechanism, the foot support mechanism comprises a positioning assembly, a foot pedal assembly and a horizontal limiting assembly, the positioning assembly is fixedly arranged on the inner side of the corresponding ladder column, the foot pedal assembly is arranged between the two positioning assemblies and is rotationally connected between the foot pedal assembly and the positioning assembly, the two end portions of the foot pedal assembly are penetrated into the corresponding ladder column, the angle adjustment of the foot pedal assembly is realized through a regulating assembly, the horizontal limiting assembly is installed on the front and back sides of the foot pedal assembly, the horizontal limiting assembly is arranged in a horizontal telescopic structure and is horizontally clamped between the positioning assemblies. When the inclination angle of the whole repair ladder needs to be adjusted, the synchronous rotation of all the foot support mechanisms can be realized by operating the regulating assembly, so that each foot support mechanism always maintains a horizontal state with the ground.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of power grid maintenance, in particular to a repair ladder for power grid maintenance. BACKGROUND

[0002] The power grid repair ladder is set for high-altitude operation. When an electrician repairs a circuit at a high place, a repair ladder is often used. The commonly used repair ladder is composed of two handrail columns and a plurality of footrest rods. The footrest rods are used to realize the up-and-down climbing operation of repair workers.

[0003] In order to improve the safety of the up-and-down climbing of the repair ladder, the footrest rods of most repair ladders are designed in a plate shape, that is, a footboard structure, so as to increase the contact area between the footboard and the feet of the repair worker, and to improve the stability of the repair worker during climbing. However, the footboard of the existing repair ladder is fixedly connected with the handrail column in an integral manner. Under a certain placement angle, the footboard of the repair ladder is parallel to the ground. When the inclined placement angle of the repair ladder needs to be adjusted, the footboard cannot ensure parallelism with the ground. The inclined footboard greatly reduces the stability of the repair worker during up-and-down climbing, thereby being not conducive to the safety of the power grid repair operation. Therefore, the present application provides a repair ladder for power grid maintenance to solve the above technical problems. SUMMARY

[0004] The present application aims to provide a repair ladder for power grid maintenance. Through the specific structural design of the control assembly, the positioning assembly, the footrest assembly and the horizontal limiting assembly, the problem that the footboard of the existing repair ladder is fixedly connected with the handrail column in an integral manner, and under a certain placement angle, the footboard of the repair ladder is parallel to the ground, and when the inclined placement angle of the repair ladder needs to be adjusted, the footboard cannot ensure parallelism with the ground, and the inclined footboard greatly reduces the stability of the repair worker during up-and-down climbing is solved.

[0005] To solve the above technical problems, the present application is realized by the following technical scheme:

[0006] The present application is a repair ladder for power grid maintenance, which comprises a ladder column, the inside of the ladder column is provided with a set of control assembly, and a foot support mechanism is arranged between the two ladder columns in an array, and the foot support mechanism is fixedly connected with the ladder column.

[0007] The foot support mechanism comprises a positioning assembly, which is arranged one-to-one with the escalator columns and fixedly arranged inside the corresponding escalator column; a foot pedal assembly, which is arranged between the two positioning assemblies and rotationally connected with the positioning assemblies, both ends of the foot pedal assembly penetrating into the corresponding escalator column, and the angle of the foot pedal assembly being adjusted through a regulating assembly; and a horizontal limiting assembly, which is installed on the front and back sides of the foot pedal assembly, arranged in a horizontal telescopic structure and horizontally clamped with the positioning assembly.

[0008] The application further provides that the inside of the escalator column is provided with a cylindrical mounting cavity along the length direction thereof, both ends of the escalator column are provided with through holes communicating with the cylindrical mounting cavity; the outer surface of the escalator column is provided with a limiting guide rail, the limiting guide rail is provided with a tool storage box which can slide along the length direction thereof, and the tool storage box is connected with a buckling belt.

[0009] The application further provides that the regulating assembly comprises a multi-point driving rack gear, which is arranged inside the cylindrical mounting cavity and can slide along the length direction of the cylindrical mounting cavity; the regulating assembly further comprises a regulating handle rotationally connected with the escalator column, one end of the regulating handle being fixedly provided with a regulating gear inside the corresponding cylindrical mounting cavity, and the regulating gear being engaged with the multi-point driving rack gear.

[0010] The application further provides that the positioning assembly comprises a positioning disc, which is fixedly arranged inside the escalator column, a first connecting hole being arranged at the center position of the positioning disc; the inner wall of the escalator column is arrayed with second connecting holes corresponding to the foot support mechanism one-to-one, the first connecting hole and the corresponding second connecting hole being coaxially arranged, a plurality of horizontal positioning holes being arranged on the surface of the positioning disc and uniformly arranged on the side of the first connecting hole.

[0011] The application further provides that the foot pedal assembly comprises a planar foot pedal, the surface of the planar foot pedal being provided with an anti-skid pad; a limiting gear, which is arranged on the left and right sides of the planar foot pedal and fixedly connected with the planar foot pedal through a horizontal support shaft; and a horizontal guide cavity, which is symmetrically arranged inside the planar foot pedal and arranged one-to-one with the horizontal limiting assembly.

[0012] The application further provides that one end of the horizontal support shaft penetrates the first connecting hole and the second connecting hole in sequence, the inner walls of the first connecting hole and the second connecting hole are rotationally matched with the circumferential surface of the horizontal support shaft, the limiting gear is located inside the corresponding cylindrical mounting cavity and engaged with the multi-point driving rack gear.

[0013] The horizontal limiting assembly further comprises an elastic element coaxially arranged inside the horizontal guide cavity, a moving disc symmetrically arranged inside the horizontal guide cavity and slidable along the length direction of the corresponding horizontal guide cavity, and an inner threaded member corresponding to the moving disc, and the elastic element is fixed between the two moving discs, and the flat footboard is provided with a double-threaded shaft on both front and rear sides, and the double-threaded shaft is in threaded cooperation with the corresponding two inner threaded members.

[0014] The flat footboard is provided with a sliding channel on both front and rear sides, the sliding channel is in communication with the corresponding horizontal guide cavity, the inner threaded member is in sliding cooperation with the sliding channel, and the moving disc is fixedly connected with the corresponding inner threaded member.

[0015] The flat footboard is provided with two limiting openings on both left and right sides, the limiting openings are in communication with the horizontal guide cavity, the surface of the moving disc is fixedly provided with a horizontal limiting shaft in sliding cooperation with the corresponding limiting opening, and the horizontal limiting shaft is in plug-in cooperation with the corresponding horizontal positioning opening on the positioning disc.

[0016] The present application has the following advantages:

[0017] 1、The present application sets a set of regulating assembly on the escalator column, when the inclination angle of the whole rescue ladder needs to be adjusted, the synchronous rotation of all foot support mechanisms can be realized by operating the regulating assembly, so that each foot support mechanism always maintains a horizontal state with the ground, which greatly improves the stability of the rescue worker when climbing up and down, and further improves the safety of the power grid rescue operation.

[0018] 2、The present application controls the regulating assembly to realize the synchronous rotation of each foot support mechanism to a horizontal state, and then rotates the corresponding double-threaded shaft of each foot support mechanism, under the threaded cooperation of the double-threaded shaft and the two inner threaded members, drives the two moving discs oppositely arranged in the horizontal guide cavity to move reversely and insert into the corresponding horizontal positioning opening, thereby realizing the fixation of both ends of the flat footboard in the horizontal state, effectively avoiding the rotation of the flat footboard under stress, and greatly improving the stability of the rescue ladder when climbing up and down.

[0019] 3、The present application sets a positioning disc fixed on the inner side of the handrail column, and a plurality of horizontal positioning openings are arranged circumferentially on the positioning disc, which can meet the horizontal locking of the foot pedal assembly in different directions, so as to realize the safe climbing operation of the rescue ladder under different inclination angles, and improve the application range of the rescue ladder.

[0020] Of course, implementing any product of the application does not necessarily require achieving all the advantages described above at the same time. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed for the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0022] Figure 1 It is a structural schematic diagram of a rescue ladder for power grid maintenance.

[0023] Figure 2 It is a structural schematic diagram of an escalator column in the present application.

[0024] Figure 3 It is a structural schematic diagram of a foot support mechanism in the present application.

[0025] Figure 4 It is a structural schematic diagram of a positioning assembly in the present application.

[0026] Figure 5 It is a structural schematic diagram of a foot pedal assembly in the present application.

[0027] Figure 6 It is a structural top view of Figure 5 .

[0028] Figure 7 It is a structural sectional view of the foot pedal assembly in the present application.

[0029] In the drawings, the components represented by each reference numeral are listed as follows:

[0030] 1-escalator column, 101-column mounting cavity, 102-through opening, 103-multipoint driving rack, 104-control element, 105-control gear, 2-foot support mechanism, 21-positioning assembly, 211-positioning disc, 212-first connecting port, 213-horizontal positioning port, 22-foot pedal assembly, 221-flat foot pedal, 222-limiting gear, 223-horizontal support shaft, 224-horizontal guide cavity, 225-sliding channel, 226-limiting port, 23-horizontal limiting assembly, 231-elastic element, 232-moving disc, 233-internal screw, 234-bidirectional threaded shaft, 235-horizontal limiting shaft. DETAILED DESCRIPTION

[0031] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0032] Please refer to Figures 1-7 The present application is a kind of power grid maintenance repair ladder, including ladder column 1 and foot support mechanism 2, a set of control components is arranged in the inside of ladder column 1, foot support mechanism 2 is arranged between two ladder columns 1 in array, and foot support mechanism 2 is fixedly connected between the ladder column 1;Among them,

[0033] The foot support mechanism 2 includes positioning assembly 21, foot pedal assembly 22 and horizontal limiting assembly 23, the positioning assembly 21 is arranged one by one with the ladder column 1, and the positioning assembly 21 is fixedly arranged in the inside of the corresponding ladder column 1;

[0034] The foot pedal assembly 22 is arranged between the two positioning assemblies 21, and the foot pedal assembly 22 is rotatably connected between the positioning assemblies 21, both ends of the foot pedal assembly 22 are penetrated into the inside of the corresponding ladder column 1, and the angle adjustment of the foot pedal assembly 22 is realized through the control component;

[0035] The horizontal limiting assembly 23 is installed on the front and back sides of the foot pedal assembly 22, the horizontal limiting assembly 23 is arranged in a horizontal telescopic structure and is horizontally clamped between the positioning assemblies 21.

[0036] By arranging a set of control components on the ladder column 1, when the inclination angle of the entire repair ladder needs to be adjusted, the synchronous rotation of all foot support mechanisms 2 can be realized by operating the control component, so that each foot support mechanism 2 always maintains a horizontal state with the ground, which can greatly improve the stability of the rescue worker when climbing up and down, and further improve the safety of the power grid repair operation.

[0037] In the embodiment of the present application, the cylindrical mounting cavity 101 is arranged in the inside of the ladder column 1 along the length direction thereof, the through hole 102 is arranged in the upper and lower ends of the ladder column 1 and is communicated with the cylindrical mounting cavity 101;The limiting guide rail is arranged on the outer surface of the ladder column 1, the tool storage box is arranged on the limiting guide rail and can slide along the length direction thereof, and the buckling belt is connected to the tool storage box;After the rescue worker leans the repair ladder against the support body (force body), the required maintenance tool is placed in the tool storage box, and the buckling belt is connected to the waist of the rescue worker, in the process of climbing to the repair position, the tool storage box is lifted along with the limiting guide rail, thereby realizing the carrying of the maintenance tool, and facilitating the taking and storing of the maintenance tool during high-altitude operation.

[0038] In the embodiment of the present application, the regulating assembly comprises a multi-point driving rack 103, which is arranged inside the cylindrical mounting cavity 101 and can slide along the length direction of the cylindrical mounting cavity 101.

[0039] The regulating assembly further comprises a regulating handle 104 which is rotationally connected with the escalator column 1, and one end of the regulating handle 104 is fixedly provided with a regulating gear 105 which is located inside the corresponding cylindrical mounting cavity 101 and is engaged with the multi-point driving rack 103. The rotating of the regulating handle 104 can control the rotation of the regulating gear 105, and under the engagement of the regulating gear 105 and the multi-point driving rack 103, the sliding of the multi-point driving rack 103 inside the cylindrical mounting cavity 101 is realized, and then the synchronous rotation of each footrest assembly 22 is realized.

[0040] In the embodiment of the present application, the positioning assembly 21 comprises a positioning disc 211 which is fixedly arranged on the inner side of the escalator column 1, and a first connecting port 212 is arranged at the center position of the positioning disc 211.

[0041] The inner side wall of the escalator column 1 is arrayed with second connecting ports corresponding to the foot support mechanisms 2, and the first connecting port 212 is coaxially arranged with the corresponding second connecting port, and the surface of the positioning disc 211 is provided with a plurality of horizontal positioning ports 213 which are uniformly arranged on the circumferential side of the first connecting port 212.

[0042] By arranging the positioning disc 211 which is fixedly arranged on the inner side of the handrail column 1 and circumferentially arranging a plurality of horizontal positioning ports 213 on the positioning disc 211, the horizontal locking of the footrest assembly 22 in different directions can be satisfied, so that the safe climbing operation of the rescue ladder under different inclined placement angles can be realized, and the application range of the rescue ladder is improved.

[0043] In the embodiment of the present application, the footrest assembly 22 comprises a planar footrest plate 221, a limiting gear 222 and a horizontal guide cavity 224, and the surface of the planar footrest plate 221 is provided with a non-slip pad; the limiting gears 222 are arranged on the left and right sides of the planar footrest plate 221, and the limiting gears 222 and the planar footrest plate 221 are fixedly connected through a horizontal support shaft 223; the horizontal guide cavities 224 are symmetrically arranged inside the planar footrest plate 221, and the horizontal guide cavities 224 are arranged corresponding to the horizontal limiting assemblies 23.

[0044] In the embodiment of the present application, one end of the horizontal support shaft 223 penetrates the first connecting port 212 and the second connecting port in sequence, the inner walls of the first connecting port 212 and the second connecting port are in rotational cooperation with the peripheral side surface of the horizontal support shaft 223, the limiting gear 222 is located inside the corresponding cylindrical mounting cavity 101 and is in meshing cooperation with the multi-point driving rack 103, and the synchronous rotation of each pedal assembly 22 is realized through the meshing cooperation between the limiting gear 222 and the multi-point driving rack 103.

[0045] In the embodiment of the present application, the horizontal limiting assembly 23 comprises an elastic element 231, a moving disc 232 and an internal threaded part 233, the elastic element 231 is coaxially arranged inside the horizontal guide cavity 224; the moving disc 232 is symmetrically arranged inside the horizontal guide cavity 224, and the moving disc 232 can slide along the length direction of the corresponding horizontal guide cavity 224, and the elastic element 231 is fixedly arranged between the two moving discs 232.

[0046] The internal threaded part 233 is correspondingly arranged with the moving disc 232, the planar pedal plate 221 is provided with a bidirectional threaded shaft 234 on the front and rear sides, the bidirectional threaded shaft 234 is in threaded cooperation with the corresponding two internal threaded parts 233; through the control of the rotation of the bidirectional threaded shaft 234, the opposite movement of the two moving discs 232 arranged oppositely can be realized, and then the compression of the elastic element 231 can be realized.

[0047] In the embodiment of the present application, the planar pedal plate 221 is provided with a sliding channel 225 on the front and rear sides, the sliding channel 225 is in communication with the corresponding horizontal guide cavity 224, the internal threaded part 233 is in sliding cooperation with the sliding channel 225, and the moving disc 232 is fixedly connected with the corresponding internal threaded part 233.

[0048] The planar pedal plate 221 is provided with two limiting through ports 226 on the left and right sides, the limiting through port 226 is in communication with the horizontal guide cavity 224, the moving disc 232 is fixedly provided with a horizontal limiting shaft 235 on the surface, the horizontal limiting shaft 235 is in plug-in cooperation with the corresponding horizontal positioning port 213 on the positioning disc 211; through the control of the regulating assembly, the synchronous rotation of each foot support mechanism 2 to the horizontal state is realized, then each foot support mechanism 2 is rotated respectively, the bidirectional threaded shaft 234 and the two internal threaded parts 233 are in threaded cooperation, the two moving discs 232 arranged oppositely in the horizontal guide cavity 224 are driven to move reversely and are inserted into the corresponding horizontal positioning port 213, thereby the fixing of the two end portions of the planar pedal plate 221 in the horizontal state is realized, the rotation of the planar pedal plate 221 under force is effectively avoided, and the stability during the climbing on the rescue ladder is greatly improved.

[0049] In the description of the specification, reference to "one embodiment", "an example", "a specific example" or the like means that a particular feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. The appearances of the phrases "in one embodiment", "an example", "a specific example" or the like in various places in the specification are not necessarily referring to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0050] The preferred embodiments of the application disclosed above are only to help explain the application. The preferred embodiments do not describe all the details of the application and limit the application to the specific embodiments described. Obviously, many modifications and variations can be made in light of the contents of the specification. The specification selects and specifically describes these embodiments in order to better explain the principles and practical application of the application, so that those skilled in the art can well understand and utilize the application. The application is limited only by the claims and their full scope and equivalents.

Claims

1. A repair ladder for power grid maintenance, characterized in that, include: Escalator column (1), wherein an adjustment component is provided inside the escalator column (1); as well as A foot support mechanism (2) is arranged in an array between two escalator columns (1), and the foot support mechanism (2) is fixedly connected to the escalator column (1); wherein, The foot support mechanism (2) includes: Positioning component (21), wherein the positioning component (21) is provided in a one-to-one correspondence with the escalator column (1), and the positioning component (21) is fixedly installed on the inner side of the corresponding escalator column (1); A foot pedal assembly (22) is disposed between the two positioning components (21) and is rotatably connected to the positioning components (21). Both ends of the foot pedal assembly (22) penetrate into the interior of the corresponding escalator column (1). The angle of the foot pedal assembly (22) is adjusted by a control component. A horizontal limiting component (23) is installed on the front and rear sides of the foot pedal component (22). The horizontal limiting component (23) is configured as a horizontal telescopic structure and is horizontally engaged with the positioning component (21). The escalator column (1) has a cylindrical mounting cavity (101) inside along its length direction, and the upper and lower ends of the escalator column (1) are provided with through openings (102) that communicate with the cylindrical mounting cavity (101). The control component includes a multi-point drive rack (103), which is disposed inside the cylindrical mounting cavity (101) and can slide along the length of the cylindrical mounting cavity (101). The control component also includes a control device (104) rotatably connected to the escalator column (1). One end of the control device (104) is fixedly provided with a control gear (105) located inside the corresponding cylindrical mounting cavity (101). The control gear (105) meshes with the multi-point drive rack (103). The positioning component (21) includes a positioning disk (211), the surface of which is provided with a plurality of horizontal positioning holes (213); the foot pedal component (22) includes a flat foot pedal (221) and a limiting gear (222), the limiting gear (222) and the flat foot pedal (221) are fixedly connected by a horizontal support shaft (223), the limiting gear (222) is located inside the corresponding cylindrical mounting cavity (101) and meshes with the multi-point drive rack (103); The horizontal limiting component (23) includes a movable disk (232) and an internal threaded component (233). The flat foot pedal (221) is provided with a bidirectional threaded shaft (234) on both the front and rear sides. The bidirectional threaded shaft (234) is threadedly engaged with the corresponding two internal threaded components (233). The movable disk (232) is fixedly connected to the corresponding internal threaded part (233). The flat foot pedal (221) is provided with two limiting ports (226) on both the left and right sides. The movable disk (232) is fixedly provided with a horizontal limiting shaft (235) that slides with the corresponding limiting port (226). The horizontal limiting shaft (235) is inserted into the corresponding horizontal positioning port (213) on the positioning disk (211). The positioning plate (211) is fixedly installed on the inner side of the escalator column (1), and a first connection port (212) is provided at the center of the positioning plate (211); the inner side wall of the escalator column (1) is provided with second connection ports corresponding to the foot support mechanism (2), the first connection port (212) and the corresponding second connection port are coaxially arranged, and the horizontal positioning ports (213) are evenly distributed around the first connection port (212); The foot pedal assembly (22) further includes a horizontal guide cavity (224), and the surface of the flat foot pedal (221) is provided with an anti-slip pad; the limiting gear (222) is disposed on the left and right sides of the flat foot pedal (221), the horizontal guide cavity (224) is symmetrically disposed inside the flat foot pedal (221), and the horizontal guide cavity (224) is disposed in a one-to-one correspondence with the horizontal limiting assembly (23); One end of the horizontal support shaft (223) passes through the first connection port (212) and the second connection port in sequence. The inner walls of the first connection port (212) and the second connection port are rotatably engaged with the circumferential side of the horizontal support shaft (223). The horizontal limiting component (23) further includes an elastic element (231), which is coaxially disposed inside the horizontal guide cavity (224); the movable disk (232) is symmetrically disposed inside the horizontal guide cavity (224), and the movable disk (232) can slide along the length direction of the corresponding horizontal guide cavity (224); the elastic element (231) is fixedly disposed between the two movable disks (232); and the internal threaded part (233) is disposed in a one-to-one correspondence with the movable disk (232). The flat foot pedal (221) is provided with sliding channels (225) on both the front and rear sides. The sliding channels (225) are connected to the corresponding horizontal guide cavities (224). The internal threaded part (233) is slidably engaged with the sliding channels (225). The limiting port (226) is connected to the horizontal guide cavity (224).

2. The emergency repair ladder for power grid maintenance according to claim 1, characterized in that, The outer surface of the escalator column (1) is provided with a limiting guide rail, and a tool storage box that can slide along its length is provided on the limiting guide rail, and a fastening strap is connected to the tool storage box.

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