Electric power operation and maintenance device

Abstract

The utility model relates to an electric power operation and maintenance device which comprises an extension ladder, the upper end of the extension ladder is rotationally connected with an upper fixing assembly, the bottom end of the extension ladder is provided with a bottom fixing assembly, the bottom fixing assembly comprises a bottom plate, the front end and the rear end of the bottom plate are provided with fixing blocks correspondingly, and mounting cavities are formed in the centers of the inner sides of the fixing blocks; a movable block is movably connected to the position, close to the bottom end, of the inner side of the mounting cavity, a suction cup is fixedly connected to the bottom end of the movable block, a second air channel is formed in the middle of the inner side of the movable block, and a first air channel communicated with the mounting cavity and the second air channel is formed in the inner side of the fixed block; the telescopic ladder has the effect of improving friction force between the upper portion and the lower portion of the telescopic ladder and a contact object when the telescopic ladder is used, the angle between the bottom end of the telescopic ladder and the ground can be fixed, the stability of the telescopic ladder in the using process is improved, replacement consumables are provided for a mechanism for fixing the angle, and the service life is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of power operation, maintenance and repair, and in particular to a power operation, maintenance and repair device. Background Art

[0002] Power operation and maintenance refers to the regular maintenance, inspection and troubleshooting of power system equipment and facilities. It is an important part of ensuring the normal operation and reliable power supply of the power system. Telescopic ladders are usually used in power operation and maintenance.

[0003] A Chinese patent with authorization announcement number CN212177017U discloses an electric power operation and maintenance inspection device, including a bracket, a storage rack and a ladder. A rotating shaft connected to the bottom surface of the ladder is provided above the bracket, and universal wheels are provided at the four corners of the bottom end of the bracket. The ladder is a hollow cavity structure, and handrails are fixedly installed on both sides of the ladder. A safety belt is connected between the two sets of handrails through a fixing buckle. The position of the safety belt is adjusted by a screw to protect the personnel on the ladder. The electric power operation and maintenance inspection device has good protection, high safety and reliability, and can be widely used.

[0004] However, in actual applications, when the existing telescopic ladders used for power operation and maintenance are in use, the friction between the upper and lower parts of the telescopic ladder and the contact surface is small, which can easily cause the telescopic ladder to tip over. In addition, the angle between the telescopic ladder and the ground is not fixed, so the telescopic ladder is prone to displacement and tipping over.

[0005] Therefore, those skilled in the art provide a power operation and maintenance device to solve the problems raised in the above background technology. Utility Model Content

[0006] In order to solve the problems raised in the above background technology, the present application provides an electric power operation and maintenance device.

[0007] The present application provides an electric power operation and maintenance device that adopts the following technical solution:

[0008] A power operation and maintenance device comprises a telescopic ladder, wherein the upper end of the telescopic ladder is rotatably connected to an upper fixing assembly, and the bottom end of the telescopic ladder is installed with a bottom fixing assembly, and the bottom fixing assembly comprises a bottom plate, and fixing blocks are respectively arranged at the front and rear ends of the bottom plate, and an installation cavity is centrally provided on the inner side of the fixing block, and a moving block is movably connected to the inner side of the installation cavity near the bottom end, a suction cup is fixedly connected to the bottom end of the moving block, a second air passage is centrally provided on the inner side of the moving block, a first air passage which is connected with the installation cavity and the second air passage is provided on the inner side of the fixing block, a pressing block is installed at the upper end which passes through the installation cavity, a second spring is installed between the pressing block and the moving block, a short rod is centrally fixedly connected to the bottom end of the pressing block, and a through hole is provided on the side wall of the short rod.

[0009] Preferably, the upper fixing assembly includes a shell, the inner side of the shell is movably connected to a mounting plate, the four rear corners of the mounting plate are respectively fixedly connected to limiting rods, the limiting rods are movably connected to the shell, a first spring is installed between the shell and the mounting plate, and the front end of the mounting plate is fixedly connected to a rubber strip.

[0010] Preferably, a first connecting piece is fixedly connected to the upper end of the base plate, threaded rods are fixedly connected to both sides of the first connecting piece, a second connecting piece is movably connected to the outer side of the threaded rod, a first friction plate is installed on the side wall of the second connecting piece, a plug-in block is fixedly connected to the first friction plate, the plug-in block is plugged into the second connecting piece, a spring sheet is fixedly connected in the groove on the plug-in block, a clamping block is fixedly connected to the spring sheet, a nut is threadedly connected to the outer side of the threaded rod near the end, and a second friction plate is arranged between the nut and the first friction plate.

[0011] Preferably, the contact surfaces of the second friction plate and the nut are respectively provided with snap-fitting patterns, and the contact surfaces of the second friction plate and the first friction plate are respectively provided with friction patterns.

[0012] Preferably, the fixing block is movably connected to the bottom plate, and a rubber pad is fixedly connected to the upper end of the fixing block.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] 1. The foot-operated pressing block drives the short rod to descend, and the second air channel in the upper moving block of the suction cup is opened and closed, so that the suction cup is tightly connected to the smooth ground, and the fixing effect of the bottom of the telescopic ladder is improved. The first spring pushes the mounting plate to contact the wall, which increases the friction between the telescopic ladder and the wall, and improves the stability of the upper part of the telescopic ladder. The structure of the bottom plate, the first connecting plate, the second connecting plate and the threaded rod can realize the rotation between the telescopic ladder and the bottom fixed component, and the angle is fixed by the threaded rod and the nut to improve the stability of the device. At the same time, the consumables of the fixed friction surface can be replaced by the first friction plate and the second friction plate to extend the service life of the device. The design of the movable connection between the fixed block and the bottom plate enables the device to flip, and the friction between the rubber pad and the rough ground is improved on the rough ground. It has the effect of improving the friction between the upper and lower parts of the telescopic ladder and the contact object when in use, and can fix the angle between the bottom end of the telescopic ladder and the ground, which improves the stability of the telescopic ladder when in use, and provides replacement consumables for the fixed angle mechanism, which increases the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of this application;

[0016] Figure 2 It is a schematic diagram of the structure of the lower fixing assembly of the present application;

[0017] Figure 3It is a structural schematic diagram of the first friction plate, plug-in block, spring plate and clamping block of the present application;

[0018] Figure 4 is a cross-sectional view of the lower fixing assembly of the present application;

[0019] Figure 5 This is an unpacking diagram of the upper fixing assembly of the present application.

[0020] Explanation of the reference numerals: 1. telescopic ladder; 2. upper fixing assembly; 201. shell; 202. mounting plate; 203. limit rod; 204. first spring; 205. rubber strip; 3. bottom fixing assembly; 301. bottom plate; 302. fixing block; 303. rubber pad; 304. mounting cavity; 305. first air duct; 306. moving block; 307. suction cup; 308. second air duct; 309. pressing block; 310. short rod; 311. through hole; 312. second spring; 313. first connecting plate; 314. threaded rod; 315. second connecting plate; 316. first friction plate; 317. plug-in block; 318. spring plate; 319. clamping block; 320. second friction plate; 321. nut. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example 1

[0023] like Figure 1 , 2 As shown in Figure 4, the present application discloses an electric power operation and maintenance device, including a telescopic ladder 1, the upper end of the telescopic ladder 1 is rotatably connected to an upper fixing component 2, the bottom end of the telescopic ladder 1 is installed with a bottom fixing component 3, the bottom fixing component 3 includes a bottom plate 301, the front and rear ends of the bottom plate 301 are respectively provided with fixing blocks 302, the inner side of the fixing block 302 is centrally provided with an installation cavity 304, the inner side of the installation cavity 304 is movably connected to a moving block 306 near the bottom, and the bottom end of the moving block 306 is A suction cup 307 is fixedly connected, a second air channel 308 is opened in the center of the inner side of the moving block 306, a first air channel 305 which is connected with the installation cavity 304 and the second air channel 308 is opened in the inner side of the fixed block 302, a pressing block 309 is installed on the upper end of the installation cavity 304, a second spring 312 is installed between the pressing block 309 and the moving block 306, a short rod 310 is fixedly connected in the center of the bottom end of the pressing block 309, and a through hole 311 is opened on the side wall of the short rod 310;

[0024] The pressing block 309 is stepped on to drive the short rod 310 to descend in the second air channel 308. The through hole 311 is connected with the transverse channel of the second air channel 308. After the suction cup 307 is pressurized, the air in the suction cup 307 is discharged through the second air channel 308, the installation cavity 304 and the first air channel 305. After the air in the suction cup 307 is exhausted, the foot is removed, and the second spring 312 drives the pressing block 309 and the short rod 310 to reset. The short rod 310 closes the second air channel 308, and the suction cup 307 is tightly connected to the smooth ground, thereby improving the fixing effect on the bottom of the telescopic ladder 1.

[0025] like Figure 1 , 5 As shown, the upper fixing assembly 2 includes a shell 201, and a mounting plate 202 is movably connected to the inner side of the shell 201. The four corners of the rear end of the mounting plate 202 are respectively fixedly connected to limit rods 203, and the limit rod 203 is movably connected to the shell 201. A first spring 204 is installed between the shell 201 and the mounting plate 202. A rubber strip 205 is fixedly connected to the front end of the mounting plate 202. The shell 201 and the limit rod 203 are movably connected to improve the installation firmness of the mounting plate 202. The first spring 204 pushes the rubber strip 205 at the front end of the mounting plate 202 to contact the wall, thereby increasing the friction between the upper end of the telescopic ladder 1 and the wall, thereby improving the firmness of the telescopic ladder 1 during use.

[0026] like Figure 2 , 3 As shown, the upper end of the bottom plate 301 is fixedly connected to a first connecting piece 313, and threaded rods 314 are fixedly connected to both sides of the first connecting piece 313, and the outer side of the threaded rod 314 is movably connected to a second connecting piece 315, and a first friction plate 316 is installed on the side wall of the second connecting piece 315, and a plug-in block 317 is fixedly connected to the first friction plate 316, and the plug-in block 317 is plugged with the second connecting piece 315, and a spring piece 318 is fixedly connected in the groove of the plug-in block 317, and a clamping block 319 is fixedly connected to the spring piece 318, and the threaded rod 314 is movably connected to the outer side of the threaded rod 314. A nut 321 is threadedly connected to the outer side of the rod 314 near the end, and a second friction plate 320 is arranged between the nut 321 and the first friction plate 316. The telescopic ladder 1 and the bottom fixing component 3 rotate together through the second connecting plate 315, the threaded rod 314 and the first connecting plate 313. The threaded rod 314 cooperates with the nut 321 and the second connecting plate 315 to fix the angle, thereby improving the stability of the telescopic ladder 1. The fixed friction surface can be replaced with consumables through the second friction plate 320 and the first friction plate 316 to improve the service life.

[0027] like Figure 2As shown, the contact surfaces of the second friction plate 320 and the nut 321 are respectively provided with snap-fitting patterns, and the contact surfaces of the second friction plate 320 and the first friction plate 316 are respectively provided with friction patterns. The second friction plate 320 can be limited by the snap-fitting patterns between the second friction plate 320 and the nut 321, and the friction force between the second friction plate 320 and the first friction plate 316 is increased by the friction patterns, thereby improving the effect of fixing the angle between the second connecting plate 315 and the first connecting plate 313.

[0028] like Figure 1 , 2 As shown, the fixing block 302 is movably connected to the bottom plate 301 , and a rubber pad 303 is fixedly connected to the upper end of the fixing block 302 . After the fixing block 302 is turned over, the friction between the fixing block 302 and the rough ground can be improved through the rubber pad 303 .

[0029] The standard parts used in the utility model can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt the conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0030] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0031] The implementation principle of a power operation and maintenance device in the embodiment of the present application is:

[0032] When in use, the telescopic ladder 1 is extended and adjusted to the required length and position, the shell 201 is adaptively rotated at the upper end of the telescopic ladder 1, and the mounting plate 202 at the front end of the shell 201 is squeezed by the first spring 204 to drive the rubber strip 205 to contact the wall, and the limiting rod 203 limits and fixes the mounting plate 202. When the telescopic ladder 1 is used on a smooth ground, the suction cup 307 on the rotating fixed block 302 contacts the ground, and the foot steps on the pressing block 309 to drive the through hole 311 on the short rod 310 to penetrate the second air channel 308 in the moving block 306, the suction cup 307 is pressurized, and the gas in the suction cup 307 is discharged through the second air channel 308, the mounting cavity 304 and the first air channel 305. The foot moves away the pressing block 309, and the second spring 312 drives the pressing block 309 and the short rod 310 to rise, and the short rod 310 presses the second air channel 3 08 is closed, and the suction cup 307 sucks the smooth ground. When the telescopic ladder 1 needs to be moved, the foot lightly steps on the pressing block 309 to drive the through hole 311 to connect with the second air duct 308, and the telescopic ladder 1 is lifted. The air is sucked into the suction cup 307, and the bottom end of the telescopic ladder 1 can be contacted. When the telescopic ladder 1 is used on a rough ground, the fixing block 302 is flipped to make the rubber pad 303 contact the ground. When in use, the fixing block 302 can be driven by rotating the nut 321 to closely contact the first friction plate 316 on the second connecting plate 315 to fix the angle between the telescopic ladder 1 and the ground. When the first friction plate 316 needs to be replaced, the spring plate 318 can be moved to drive the card block 319 to move away from the contact point in the second connecting plate 315, and the first friction plate 316 can be pulled out along the direction of the plug-in block 317 for replacement.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An electric power operation and maintenance device, comprising a telescopic ladder (1), wherein the upper end of the telescopic ladder (1) is rotatably connected to an upper fixing assembly (2), and the bottom end of the telescopic ladder (1) is installed with a bottom fixing assembly (3), characterized in that: The bottom fixing assembly (3) comprises a bottom plate (301), the front and rear ends of the bottom plate (301) are respectively provided with fixing blocks (302), a mounting cavity (304) is provided in the center of the inner side of the fixing block (302), a moving block (306) is movably connected to the inner side of the mounting cavity (304) near the bottom end, a suction cup (307) is fixedly connected to the bottom end of the moving block (306), and a second air passage (308) is provided in the center of the inner side of the moving block (306). A first air passage (305) is provided on the inner side of the fixed block (302) and is connected to the installation cavity (304) and the second air passage (308); a pressing block (309) is installed on the upper end of the installation cavity (304); a second spring (312) is installed between the pressing block (309) and the moving block (306); a short rod (310) is fixedly connected to the center of the bottom end of the pressing block (309); and a through hole (311) is provided on the side wall of the short rod (310).

2. The electric power operation and maintenance device according to claim 1, characterized in that: The upper fixing assembly (2) comprises a shell (201), the inner side of the shell (201) is movably connected to a mounting plate (202), the four corners of the rear end of the mounting plate (202) are respectively fixedly connected to limit rods (203), the limit rods (203) are movably connected to the shell (201), a first spring (204) is installed between the shell (201) and the mounting plate (202), and the front end of the mounting plate (202) is fixedly connected to a rubber strip (205).

3. The electric power operation and maintenance device according to claim 1, characterized in that: The upper end of the bottom plate (301) is fixedly connected to a first connecting piece (313), and threaded rods (314) are fixedly connected to both sides of the first connecting piece (313). The outer side of the threaded rod (314) is movably connected to a second connecting piece (315), and the side wall of the second connecting piece (315) is installed with a first friction plate (316). The first friction plate (316) is fixedly connected to a plug-in block (317), and the plug-in block (317) is plugged with the second connecting piece (315). A spring plate (318) is fixedly connected to a groove on the plug-in block (317), and a clamping block (319) is fixedly connected to the spring plate (318). A nut (321) is threadedly connected to the outer side of the threaded rod (314) near the end, and a second friction plate (320) is arranged between the nut (321) and the first friction plate (316).

4. The electric power operation and maintenance device according to claim 3, characterized in that: The contact surfaces of the second friction plate (320) and the nut (321) are respectively provided with snap-fitting patterns, and the contact surfaces of the second friction plate (320) and the first friction plate (316) are respectively provided with friction patterns.

5. The electric power operation and maintenance device according to claim 1, characterized in that: The fixing block (302) is movably connected to the bottom plate (301), and a rubber pad (303) is fixedly connected to the upper end of the fixing block (302).

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