CN114215768A

CN114215768A - Electric fan convenient to maintain

Info

Publication number: CN114215768A
Application number: CN202111349073.8A
Authority: CN
Inventors: 不公告发明人
Original assignee: Chen Zhiya
Current assignee: Chen Zhiya
Priority date: 2021-02-26
Filing date: 2021-02-26
Publication date: 2022-03-22
Also published as: CN113048084B; CN113048084A

Abstract

The invention belongs to the technical field of household appliances, and particularly relates to an electric fan convenient to maintain, which comprises a body and a base, wherein a rotating shaft at one side of the body is fixedly connected with fan blades, and one side of the body, which is close to the fan blades, is fixedly connected with a first protective cover and a second protective cover in sequence; a group of fixed shells are uniformly distributed on the outer edge of the second protective cover, clamping plates are hinged in the fixed shells through rotating pins, and triangular clamping blocks are fixedly connected to one ends of the clamping plates, which are far away from the rotating pins; the middle part of the clamping rod at one side of the rotary pin, which is far away from the tension spring, is fixedly connected with a first pull wire; a sliding cylinder is fixedly connected to one side, away from the body, of the center of the second protective cover, a button is connected in the sliding cylinder in a sliding mode, a group of springs is fixedly connected between the button and the inner bottom of the sliding cylinder, and a first stay wire penetrates through the side wall of the sliding cylinder and is fixedly connected with the button; according to the electric fan, the second protective cover is aligned with the first protective cover and then pressed, the edge of the first protective cover is clamped and fixed by the clamping block after the triangular clamping block is scratched, and the maintenance efficiency of the electric fan is improved.

Description

Electric fan convenient to maintain

Technical Field

The invention belongs to the technical field of household appliances, and particularly relates to an electric fan convenient to maintain.

Background

In production and life, the functions of electromechanical equipment cannot be separated, wherein the most widely used electromechanical equipment is a metal cutting machine tool and hoisting equipment, the electromechanical equipment has various types and can be generally divided into three types according to the application of the electromechanical equipment, namely industrial electromechanical equipment, information electromechanical equipment and civil electromechanical equipment, wherein the industrial electromechanical equipment constantly influences the efficiency of a plurality of production parties, and the electric fan belongs to one of the civil electromechanical equipment.

Some technical schemes about electric fans have also appeared in the prior art, and a chinese patent with application number 2017105889415 discloses an electric fan convenient to maintenance, including the electric fan drain pan, the lower fixed surface of electric fan drain pan is connected with the bottom plate, and the last fixed surface of electric fan drain pan is connected with the support column, and the one end swing joint that the electric fan drain pan was kept away from to the support column has the stopper, and the top fixedly connected with motor case of stopper, the left side fixedly connected with protective housing of motor case, the inside fixedly connected with motor of motor case, the output of motor passes through shaft coupling fixedly connected with pivot.

But fix a protection casing and No. two protection casings through clamp cooperation bolt among the prior art, nevertheless when the fan broke down or need wash, the installation of No. two protection casings need align and pass through the bolt fastening, and not hard up nut drops easily, needs many people to cooperate, and the operation is complicated, seriously reduces the maintenance efficiency of electric fan.

Therefore, the electric fan is convenient to maintain.

Disclosure of Invention

In order to make up for the defects of the prior art and solve the problems that in the prior art, a first protective cover and a second protective cover are fixed through a clamp and a bolt in a matching mode, when a fan breaks down or needs to be cleaned, the second protective cover needs to be installed in an aligned mode and fixed through the bolt, loose nuts easily fall off, multiple persons need to be matched, the operation is complex, and the maintenance efficiency of the electric fan is seriously reduced, the electric fan is convenient to maintain.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to an electric fan convenient to maintain, which comprises a body and a base, wherein the body is fixedly connected to the top of the base through a vertical rod, a rotating shaft at one side of the body is fixedly connected with a fan blade, and one side of the body, which is close to the fan blade, is fixedly connected with a first protective cover and a second protective cover in sequence; a group of fixed shells are uniformly distributed at the outer edge of the second protective cover, clamping plates are hinged in the fixed shells through rotating pins, triangular clamping blocks are fixedly connected to one ends of the clamping plates, which are far away from the rotating pins, and the clamping blocks are clamped with the outer edge of the first protective cover; a tension spring is fixedly connected between one end of the clamping plate, which is far away from the clamping block, and the fixed shell, and the middle part of the clamping rod, which is far away from the tension spring, of the rotating pin is fixedly connected with a first pull wire; one side of the center of the second protective cover, which is far away from the body, is fixedly connected with a sliding barrel, a button is connected in the sliding barrel in a sliding manner, a group of springs are fixedly connected between the button and the inner bottom of the sliding barrel, and the first stay wire penetrates through the side wall of the sliding barrel and is fixedly connected with the button; when the electric fan is in work, the first protective cover and the second protective cover are fixed through the clamp and the bolts in the prior art, but when the fan breaks down or needs to be cleaned, the second protective cover needs to be aligned and fixed through the bolts, loose nuts easily fall off, multiple persons are needed to cooperate, the operation is complex, and the maintenance efficiency of the electric fan is seriously reduced; at the moment, the button is pressed, the first stay wire is pulled by the button, the clamping block is disengaged from the outer edge of the first protective cover after the clamping plate rotates, the second protective cover is rapidly disassembled, the maintenance efficiency of the electric fan is improved, after the maintenance is finished, the second protective cover is pressed after the second protective cover is aligned with the first protective cover, the edge of the first protective cover is clamped and fixed by the clamping plate after the triangular clamping block is scratched on the edge of the first protective cover, the installation difficulty of the second protective cover is reduced, and the maintenance efficiency of the electric fan is further improved.

Preferably, a fixed seat is fixedly connected with the position, corresponding to the clamping block, in the fixed shell through a support, a pull pin is connected in a sliding hole formed in the fixed seat in a sliding manner, and a pull ring is arranged at one end, far away from the clamping block, of the pull pin; a clamping hole matched with the pull pin is formed in the position, corresponding to the pull pin, of the clamping block; a pair of U-shaped snap springs is connected in a sliding groove formed in one side of the sliding hole close to the clamping block, and a sliding rod is arranged on the pull pin in a position corresponding to the snap springs; when the fixture block blocks the outer edge of the first protective cover, the pull ring is pushed together, so that the pull pin slides towards the direction close to the clamping hole and then is clamped into the clamping hole, meanwhile, the slide rod slides into the gap between the two adjacent clamp springs, the pull pin is prevented from loosening, the clamp plates are locked, the problem that the second protective cover accidentally falls off due to the fact that the old or the child mistakenly touches the button in the working process of the electric fan is avoided, and the safety of the electric fan during working is further improved.

Preferably, a blind hole is formed in the position, corresponding to the slide rod, of the pull pin, and the slide rod is embedded into the blind hole and is in sliding connection with the blind hole; a pair of elastic rods is slidably connected in arc-shaped holes formed in the two sides of the blind hole, and one end of each elastic rod, which is positioned in the blind hole, is bent towards one side close to the sliding rod and props against the sliding rod; one end of the elastic rod, which is positioned outside the pull pin, inclines towards the direction close to the slide rod, and the end part of the elastic rod is fixedly connected with a gasket for absorbing oil, and the gasket is connected with the slide rod in a sliding way; slide the in-process in to the blind hole through the slide bar, slide bar extrusion elastic rod tip for the elastic rod other end drives the lubricated effect that the gasket increased the slide bar after stretching out, further reduces slide bar surface and wets the corruption, increases the slip flexibility of slide bar, further increases the dismantlement and the installation effectiveness of No. two protection casings.

Preferably, the clamp springs are arranged in a shape like a Chinese character 'ji', and a graphite layer is arranged between the clamp springs and the sliding grooves; the inner periphery of the clamp spring is fixedly connected with the graphite layer through a pair of second pull wires, and two ends of the clamp spring are connected with the graphite layer in a sliding mode; a group of scraping thorns are uniformly distributed on the inner sides of two ends of the clamp spring close to the graphite layer, and a first hole is formed in the clamp spring on one side of each scraping thorn; when the clamp spring is extruded through the sliding rod, the clamp spring deforms, so that the end part of the clamp spring is opened and drives the scraping thorn to scrape the graphite layer, the graphite powder scraped by the scraping thorn drops on the sliding rod through the first hole, the lubricating effect between the sliding rod and the clamp spring is further increased, and the sliding clamping efficiency of the pull pin is increased.

Preferably, a mixing tank is arranged on one side, close to the sliding rod, of the top of the gasket, and a wedge-shaped tank is arranged at the top of the mixing tank; the graphite powder that drops through a hole drops in the mixing tank after the collection of wedge groove, later forms fatlute after mixing with the lubricating oil in the gasket, and the adhesion is in the slide bar periphery, and then further reduces the spill over loss of lubricating oil, prolongs the good lubricated time of slide bar.

Preferably, a roller is rotatably connected in a rotating cavity formed at the bottom of the mixing tank, a group of bent elastic stirring angles are uniformly distributed on the periphery of the roller, a third pull wire is arranged on the roller, and the third pull wire is wound on the periphery of the roller in an anticlockwise manner; the third pull wire penetrates through the gasket and is fixedly connected with a magnetic block, and the magnetic block is adsorbed on the periphery of the pull pin; the third pull wire is connected with the gasket in a sliding manner, an inclined plate is arranged at the top of the rotating cavity, and the top of the inclined plate inclines towards the direction close to the sliding rod; adsorb in the round pin periphery through the magnetic path for the slide bar when sliding to the blind hole outside, three act as go-between and drive running roller anticlockwise rotations, make the running roller rely on the frictional force with the swash plate to remove to the direction that is close to the slide bar after swash plate surface rotation, later cooperate the stirring angle to the extrusion mixture of graphite powder and lubricating oil, further increase the slide bar periphery of the even adhesion of fatlute mixture, further increase the slip efficiency of slide bar.

Preferably, the clamp spring at the bottom of the first hole is fixedly connected with an elastic arc-shaped plate, and the thickness of one side, away from the clamp spring, of the arc-shaped plate is gradually reduced; a mandril penetrates through the clamp spring, the mandril is connected with the clamp spring in a sliding way, one end of the mandril props against the graphite layer, and the other end of the mandril props against the free end of the arc-shaped plate; in the arc that a part of graphite powder that drops through a hole was stored, later the jump ring continues to warp and moves to the direction that is close to the graphite layer for the ejector pin top moves the arc and warp, and later the ejector pin draws arc rebound behind the arc tip, further increases the unrestrained homogeneity of graphite powder to the slide bar, further increases the lubricating efficiency between slide bar and the jump ring.

Preferably, a pair of semicircular elastic clamping plates is arranged at the bottom end of the ejector rod close to the arc-shaped plate, and a spring is fixedly connected between the two clamping plates; a wave plate is arranged in the first hole, one end of the wave plate close to the graphite layer is fixedly connected with a vibration ball, and the other end of the wave plate is fixedly connected with the clamping plate through a connecting rod; make the arm arc tip mark ejector pin tip and two splint in proper order through two splint, further increase the vibration efficiency of arc board, drive the wave board through the connecting rod when splint warp simultaneously and constantly rock the slip in a hole, the cooperation bobble increases the amplitude of wave board, further increases the whereabouts efficiency of graphite powder in a hole, reduces the jam in a hole.

The invention has the following beneficial effects:

1. according to the electric fan convenient to maintain, the button is pressed, the first pull wire is pulled by the button, the clamping plate is enabled to be disengaged from the outer edge of the first protective cover after rotating, the second protective cover is rapidly disassembled, the maintenance efficiency of the electric fan is improved, after the maintenance is finished, the second protective cover is pressed after the second protective cover is aligned with the first protective cover, the edge of the first protective cover is enabled to be fixed by the clamping plate after the triangular clamping block is cut on the edge of the first protective cover, the installation difficulty of the second protective cover is reduced, and the maintenance efficiency of the electric fan is further improved.

2. According to the electric fan convenient to maintain, when the outer edge of the first protective cover is clamped by the clamping block, the pull ring is pushed at the same time, the pull pin slides towards the direction close to the clamping hole and then is clamped into the clamping hole, meanwhile, the slide rod slides into the gap between two adjacent clamp springs, the pull pin is prevented from loosening, the clamping plate is locked, the second protective cover is prevented from falling off accidentally due to the fact that an old man or a child touches a button by mistake in the working process of the electric fan, and the safety of the electric fan in the working process is further improved.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a right side view of the present invention;

FIG. 3 is a sectional view of a stationary housing in the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a partial enlarged view of FIG. 4 at B;

FIG. 6 is an enlarged view of a portion of FIG. 5 at C;

FIG. 7 is a cross-sectional view of a gasket of the present invention;

in the figure: the device comprises a body 1, a base 11, fan blades 12, a first protective cover 13, a second protective cover 14, a fixed shell 15, a rotating pin 16, a clamping plate 17, a clamping block 18, a first pull wire 19, a sliding cylinder 2, a button 21, a fixed seat 22, a sliding hole 23, a pull pin 24, a clamping hole 25, a sliding groove 26, a clamping spring 27, a sliding rod 28, a blind hole 3, an elastic rod 31, a gasket 32, a graphite layer 33, a scraping thorn 34, a first hole 35, a mixing groove 36, a wedge-shaped groove 37, a roller 4, a stirring angle 41, a third pull wire 42, a magnetic block 43, an inclined plate 44, an arc-shaped plate 45, a push rod 46, a clamping plate 5, a wave plate 51, a vibration ball 52 and a connecting rod 53.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 7, the electric fan convenient to maintain comprises a body 1 and a base 11, wherein the body 1 is fixedly connected to the top of the base 11 through an upright rod, a rotating shaft at one side of the body 1 is fixedly connected with a fan blade 12, and a first protective cover 13 and a second protective cover 14 are sequentially fixedly connected to one side of the body 1, which is close to the fan blade 12; a group of fixed shells 15 are uniformly distributed on the outer edge of the second protective cover 14, clamping plates 17 are hinged in the fixed shells 15 through rotating pins 16, triangular clamping blocks 18 are fixedly connected to one ends, far away from the rotating pins 16, of the clamping plates 17, and the clamping blocks 18 are clamped with the outer edge of the first protective cover 13; a tension spring is fixedly connected between one end of the clamping plate 17 far away from the clamping block 18 and the fixed shell 15, and a first pull wire 19 is fixedly connected in the middle of the clamping plate 17 at one side of the rotating pin 16 far away from the tension spring; one side of the center of the second protective cover 14, which is far away from the body 1, is fixedly connected with a sliding cylinder 2, a button 21 is connected in the sliding cylinder 2 in a sliding manner, a group of springs are fixedly connected between the button 21 and the inner bottom of the sliding cylinder 2, and the first stay wire 19 penetrates through the side wall of the sliding cylinder 2 and is fixedly connected with the button 21; when the electric fan cleaning device works, the first protective cover 13 and the second protective cover 14 are fixed through the clamp matched with the bolt in the prior art, but when the fan breaks down or needs to be cleaned, the second protective cover 14 needs to be installed in an aligned mode and fixed through the bolt, loose nuts easily fall off, multiple persons are needed to be matched, the operation is complex, and the maintenance efficiency of the electric fan is seriously reduced; at the moment, the button 21 is pressed, the first pull wire 19 is pulled by the button 21, the clamping block 18 and the outer edge of the first protective cover 13 are disengaged after the clamping plate 17 rotates, the second protective cover 14 is rapidly disassembled, the maintenance efficiency of the electric fan is improved, after the maintenance is finished, the second protective cover 14 is pressed after the second protective cover 14 is aligned with the first protective cover 13, the edge of the first protective cover 13 is clamped and fixed by the clamping block 17 after the triangular clamping block 18 is scratched by the edge of the first protective cover 13, the installation difficulty of the second protective cover 14 is reduced, and the maintenance efficiency of the electric fan is further improved.

As an embodiment of the present invention, a fixed seat 22 is fixedly connected to a position corresponding to the fixture block 18 in the fixed shell 15 through a bracket, a pull pin 24 is slidably connected to a slide hole 23 formed in the fixed seat 22, and a pull ring is disposed at one end of the pull pin 24 away from the fixture block 18; a clamping hole 25 matched with the pull pin 24 is formed in the position, corresponding to the pull pin 24, of the clamping block 18; a pair of U-shaped snap springs 27 are connected in a sliding groove 26 formed in one side of the sliding hole 23 close to the clamping block 18, and a sliding rod 28 is arranged on the pull pin 24 at a position corresponding to the snap springs 27; when the fixture block 18 clamps the outer edge of the first protective cover 13, the pull ring is pushed together, so that the pull pin 24 slides towards the direction close to the clamping hole 25 and then is clamped into the clamping hole 25, meanwhile, the slide rod 28 slides into the gap between two adjacent clamp springs 27, the pull pin 24 is prevented from loosening, the clamping plate 17 is further locked, the accidental falling of the second protective cover 14 caused by the fact that an old man or a child mistakenly touches the button 21 in the working process of the electric fan is avoided, and the working safety of the electric fan is further improved.

As an embodiment of the invention, a blind hole 3 is formed in the pull pin 24 at a position corresponding to the slide rod 28, and the slide rod 28 is embedded in the blind hole 3 and is slidably connected with the blind hole 3; a pair of elastic rods 31 are slidably connected in arc-shaped holes formed in two sides of the blind hole 3, and one end of each elastic rod 31, which is positioned in the blind hole 3, is bent towards one side close to the slide rod 28 and props against the slide rod 28; one end of the elastic rod 31, which is positioned outside the pull pin 24, inclines towards the direction close to the sliding rod 28, the end part of the elastic rod is fixedly connected with a gasket 32 for absorbing oil, and the gasket 32 is connected with the sliding rod 28 in a sliding way; in the process of sliding the sliding rod 28 into the blind hole 3, the end part of the elastic rod 31 is extruded by the sliding rod 28, so that the other end of the elastic rod 31 extends out to drive the gasket 32 to increase the lubricating effect of the sliding rod 28, the surface of the sliding rod 28 is further reduced from being corroded and rusted by moisture, the sliding flexibility of the sliding rod 28 is increased, and the dismounting and mounting efficiency of the second protective cover 14 is further increased.

As an embodiment of the present invention, the clamp spring 27 is arranged in a zigzag shape, and a graphite layer 33 is disposed between the clamp spring 27 and the sliding groove 26; the inner periphery of the clamp spring 27 is fixedly connected with the graphite layer 33 through a pair of second pull wires, and two ends of the clamp spring 27 are connected with the graphite layer 33 in a sliding mode; a group of scraping thorns 34 are uniformly distributed on the inner sides of the two ends, close to the graphite layer 33, of the clamp spring 27, and a first hole 35 is formed in the clamp spring 27 on one side of each scraping thorn 34; when the clamp spring 27 is extruded through the sliding rod 28, the clamp spring 27 deforms, so that the end portion of the clamp spring 27 is opened and drives the scraping thorns 34 to scrape the graphite layer 33, the graphite powder scraped off by the scraping thorns 34 falls on the sliding rod 28 through the first hole 35, the lubricating effect between the sliding rod 28 and the clamp spring 27 is further improved, and the sliding clamping efficiency of the pull pin 24 is improved.

As an embodiment of the present invention, a mixing groove 36 is disposed on a side of the top of the gasket 32 close to the sliding rod 28, and a wedge-shaped groove 37 is disposed on the top of the mixing groove 36; the graphite powder falling through the first hole 35 falls into the mixing tank 36 after being collected by the wedge-shaped groove 37, and then forms oil sludge after being mixed with the lubricating oil in the gasket 32 and adheres to the periphery of the sliding rod 28, so that the overflow loss of the lubricating oil is further reduced, and the good lubricating time of the sliding rod 28 is prolonged.

As an embodiment of the present invention, a roller 4 is rotatably connected in a rotating cavity formed at the bottom of the mixing tank 36, a group of curved elastic stirring angles 41 are uniformly distributed on the periphery of the roller 4, a third pull wire 42 is arranged on the roller 4, and the third pull wire 42 is wound around the periphery of the roller 4 in an anticlockwise manner; the third pull wire 42 penetrates through the gasket 32 and is fixedly connected with the magnetic block 43, and the magnetic block 43 is adsorbed on the periphery of the pull pin 24; the third pull wire 42 is connected with the gasket 32 in a sliding manner, the top of the rotating cavity is provided with an inclined plate 44, and the top of the inclined plate 44 inclines towards the direction close to the sliding rod 28; the magnet 43 is adsorbed on the periphery of the pull pin 24, so that when the slide rod 28 slides towards the outside of the blind hole 3, the third pull wire 42 drives the roller 4 to rotate anticlockwise, the roller 4 moves towards the direction close to the slide rod 28 by virtue of friction force between the roller 4 and the inclined plate 44 after rotating on the surface of the inclined plate 44, and then the stirring angle 41 is matched for extruding and mixing graphite powder and lubricating oil, so that the periphery of the slide rod 28 with uniform adhesion of oil sludge mixture is further increased, and the sliding efficiency of the slide rod 28 is further increased.

As an embodiment of the invention, an elastic arc-shaped plate 45 is fixedly connected to the clamp spring 27 at the bottom of the first hole 35, and the thickness of one side of the arc-shaped plate 45, which is far away from the clamp spring 27, is gradually reduced; a mandril 46 penetrates through the clamp spring 27, the mandril 46 is connected with the clamp spring 27 in a sliding way, one end of the mandril 46 props against the graphite layer 33, and the other end of the mandril 46 props against the free end of the arc-shaped plate 45; in the arc 45 that a part of graphite powder that drops through a hole 35 was stored, later jump ring 27 continued to warp and to the direction removal that is close to graphite layer 33 for ejector pin 46 pushes up and moves arc 45 and warp, and later ejector pin 46 draws arc 45 tip back arc 45 bounce-backs, further increases the unrestrained homogeneity of graphite powder to slide bar 28, further increases the lubricating efficiency between slide bar 28 and the jump ring 27.

As an embodiment of the invention, a pair of semicircular elastic clamping plates 5 is arranged at the bottom end of the ejector rod 46 close to the arc-shaped plate 45, and a spring is fixedly connected between the two clamping plates 5; a wave plate 51 is arranged in the first hole 35, one end of the wave plate 51 close to the graphite layer 33 is fixedly connected with a vibration ball 52, and the other end of the wave plate 51 is fixedly connected with the clamping plate 5 through a connecting rod 53; make the tip of the arc plate 45 of hand drawn through two splint 5 and pass through ejector pin 46 tip and two splint 5 in proper order, further increase the vibration efficiency of arc plate 45, constantly rock the slip in a hole 35 through connecting rod 53 drive wave board 51 when splint 5 warp simultaneously, the cooperation bobble increases wave board 51's amplitude, further increases the whereabouts efficiency of graphite powder in a hole 35, reduces the jam in a hole 35.

When the electric fan is in operation, the button 21 is pressed, the first pull wire 19 is pulled by the button 21, the clamping block 18 and the outer edge of the first protective cover 13 are disengaged after the clamping plate 17 rotates, the second protective cover 14 is rapidly disassembled, the maintenance efficiency of the electric fan is improved, after the maintenance is finished, the second protective cover 14 is pressed after the second protective cover 14 is aligned with the first protective cover 13, the edge of the first protective cover 13 is clamped and fixed by the clamping block 17 after the triangular clamping block 18 is cut on the edge of the first protective cover 13, the installation difficulty of the second protective cover 14 is reduced, and the maintenance efficiency of the electric fan is further improved; when the fixture block 18 clamps the outer edge of the first protective cover 13, the pull ring is pushed together, so that the pull pin 24 slides towards the direction close to the clamping hole 25 and then is clamped into the clamping hole 25, meanwhile, the slide rod 28 slides into the gap between two adjacent clamp springs 27, the pull pin 24 is prevented from loosening, the clamping plate 17 is further locked, the accidental falling of the second protective cover 14 caused by the fact that an old man or a child mistakenly touches the button 21 in the working process of the electric fan is avoided, and the working safety of the electric fan is further improved; in the process that the sliding rod 28 slides into the blind hole 3, the end part of the elastic rod 31 is extruded by the sliding rod 28, so that the other end of the elastic rod 31 extends out to drive the gasket 32 to increase the lubricating effect of the sliding rod 28, the surface of the sliding rod 28 is further reduced from being corroded and rusted by moisture, the sliding flexibility of the sliding rod 28 is increased, and the dismounting and mounting efficiency of the second protective cover 14 is further increased; when the slide rod 28 extrudes the clamp spring 27, the clamp spring 27 deforms, so that the end part of the clamp spring 27 is opened and drives the scraping thorns 34 to scrape the graphite layer 33, the graphite powder scraped off by the scraping thorns 34 falls on the slide rod 28 through the first hole 35, the lubricating effect between the slide rod 28 and the clamp spring 27 is further improved, and the sliding clamping efficiency of the pull pin 24 is improved; the graphite powder falling through the first hole 35 falls into the mixing tank 36 after being collected by the wedge-shaped groove 37, and then forms oil sludge after being mixed with the lubricating oil in the gasket 32 and adhering to the periphery of the sliding rod 28, so that the overflow loss of the lubricating oil is further reduced, and the good lubricating time of the sliding rod 28 is prolonged; the magnet 43 is adsorbed on the periphery of the pull pin 24, so that when the slide rod 28 slides towards the outside of the blind hole 3, the third pull wire 42 drives the roller 4 to rotate anticlockwise, the roller 4 moves towards the direction close to the slide rod 28 by virtue of the friction force between the roller 4 and the inclined plate 44 after rotating on the surface of the inclined plate 44, and then the stirring angle 41 is matched for extruding and mixing graphite powder and lubricating oil, so that the periphery of the slide rod 28, to which the oil sludge mixture is uniformly adhered, is further increased, and the sliding efficiency of the slide rod 28 is further increased; in the arc-shaped plate 45 for storing a part of the graphite powder falling through the first hole 35, the clamp spring 27 continues to deform and moves towards the direction close to the graphite layer 33, so that the ejector rod 46 pushes the arc-shaped plate 45 to deform, then the ejector rod 46 slides across the end part of the arc-shaped plate 45 and then rebounds through the arc-shaped plate 45, the scattering uniformity of the graphite powder to the sliding rod 28 is further improved, and the lubricating efficiency between the sliding rod 28 and the clamp spring 27 is further improved; make the tip of the arc plate 45 of hand drawn through two splint 5 and pass through ejector pin 46 tip and two splint 5 in proper order, further increase the vibration efficiency of arc plate 45, constantly rock the slip in a hole 35 through connecting rod 53 drive wave board 51 when splint 5 warp simultaneously, the cooperation bobble increases wave board 51's amplitude, further increases the whereabouts efficiency of graphite powder in a hole 35, reduces the jam in a hole 35.

The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a be convenient for maintain electric fan which characterized in that: the fan blade protection device comprises a body (1) and a base (11), wherein the body (1) is fixedly connected to the top of the base (11) through an upright rod, a fan blade (12) is fixedly connected to a rotating shaft on one side of the body (1), and a first protection cover (13) and a second protection cover (14) are sequentially fixedly connected to one side, close to the fan blade (12), of the body (1); a group of fixed shells (15) are uniformly distributed at the outer edge of the second protective cover (14), clamping plates (17) are hinged in the fixed shells (15) through rotating pins (16), triangular clamping blocks (18) are fixedly connected to one ends, far away from the rotating pins (16), of the clamping plates (17), and the clamping blocks (18) are clamped with the outer edge of the first protective cover (13); a tension spring is fixedly connected between one end of the clamping plate (17) far away from the clamping block (18) and the fixed shell (15), and a first pull wire (19) is fixedly connected with the middle part of the clamping plate (17) at one side of the rotating pin (16) far away from the tension spring; one side of the center of the second protective cover (14) far away from the body (1) is fixedly connected with a sliding cylinder (2), the sliding cylinder (2) is connected with a button (21) in a sliding mode, a group of springs are fixedly connected between the button (21) and the inner bottom of the sliding cylinder (2), and the first pull wire (19) penetrates through the side wall of the sliding cylinder (2) and is fixedly connected with the button (21);

a fixed seat (22) is fixedly connected to the position, corresponding to the clamping block (18), in the fixed shell (15) through a support, a pull pin (24) is connected in a sliding hole (23) formed in the fixed seat (22) in a sliding mode, and a pull ring is arranged at one end, far away from the clamping block (18), of the pull pin (24); a clamping hole (25) matched with the pull pin (24) is formed in the position, corresponding to the pull pin (24), of the clamping block (18); a pair of U-shaped snap springs (27) is connected in a sliding groove (26) formed in one side of the sliding hole (23) close to the clamping block (18), and a sliding rod (28) is arranged on the pull pin (24) at a position corresponding to the snap springs (27);

the clamp springs (27) are arranged in a shape like a Chinese character 'ji', and graphite layers (33) are arranged between the clamp springs (27) and the sliding grooves (26); the inner periphery of the clamp spring (27) is fixedly connected with the graphite layer (33) through a pair of second pull wires, and two ends of the clamp spring (27) are connected with the graphite layer (33) in a sliding mode; a group of scraping thorns (34) are uniformly distributed on the inner sides of two ends of the clamp spring (27) close to the graphite layer (33), and a first hole (35) is formed in the clamp spring (27) on one side of the scraping thorns (34).

2. The electric fan convenient to maintain as claimed in claim 1, wherein: an elastic arc-shaped plate (45) is fixedly connected to the clamp spring (27) at the bottom of the first hole (35), and the thickness of one side, away from the clamp spring (27), of the arc-shaped plate (45) is gradually reduced; and a mandril (46) penetrates through the clamp spring (27), the mandril (46) is connected with the clamp spring (27) in a sliding manner, one end of the mandril (46) props against the graphite layer (33), and the other end of the mandril (46) props against the free end of the arc-shaped plate (45).

3. The electric fan convenient to maintain as claimed in claim 2, wherein: a pair of semicircular elastic clamping plates (5) is arranged at the bottom end of the ejector rod (46) close to the arc-shaped plate (45), and a spring is fixedly connected between the two clamping plates (5); a wave plate (51) is arranged in the first hole (35), one end, close to the graphite layer (33), of the wave plate (51) is fixedly connected with a vibration ball (52), and the other end of the wave plate (51) is fixedly connected with the clamping plate (5) through a connecting rod (53).