CN111261068A

CN111261068A - Automatic clear road marks tablet

Info

Publication number: CN111261068A
Application number: CN202010230709.6A
Authority: CN
Inventors: 徐冰
Original assignee: Sanmen Xingkai Intelligent Technology Co ltd
Current assignee: Sanmen Xingkai Intelligent Technology Co ltd
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2020-06-09

Abstract

The invention discloses an automatic cleaning road signboard, which comprises a working box, wherein a placing cavity is arranged in the working box in a through manner from front to back, first sliding grooves which are bilaterally symmetrical and have inward openings are arranged on the left inner wall and the right inner wall of the placing cavity, a battery pack is fixedly arranged on the top wall in the placing cavity, and a transmission cavity positioned on the right side of the battery pack is arranged on the top wall in the placing cavity; the automatic cleaning device is simple in structure and convenient and fast to operate, realizes the situation of utilizing the volatilization of water in the liquid storage cavity, automatically cleans the surface of the road signboard at regular intervals, ensures that the road signboard can effectively reflect light rays, prompts road information in front of a coming vehicle, can automatically clean the surface of the signboard when raining, automatically resets equipment after cleaning is completed, and prevents a working rod from stopping on the surface of the signboard to shield the information on the signboard.

Description

Automatic clear road marks tablet

Technical Field

The invention relates to the field of road marking equipment, in particular to an automatic cleaning road signboard.

Background

The road sign board is a facility for transmitting specific information to traffic participants by using graphic symbols, colors and characters, and is used for managing traffic and ensuring safety.

At the present stage, most road signboard is all made by reflective material, utilizes the light suggestion road information in the place ahead of the car that comes of reflection all around environment and the car that comes, and this just exists when road signboard surface is covered by impurity such as a large amount of dust, and the unable effectual reflection of light to cause the traffic hidden danger.

Disclosure of Invention

The invention provides an automatic cleaning road signboard, which realizes the automatic cleaning of the surface of the road signboard at regular intervals by utilizing the volatilization condition of water in a liquid storage cavity, ensures that the road signboard can effectively reflect light rays to prompt road information in front of a coming vehicle, can automatically clean the surface of the road signboard when raining, automatically resets equipment after cleaning is completed, and prevents a working rod from stopping on the surface of the road signboard to shield the information on the road signboard.

The invention discloses an automatic cleaning road signboard which comprises a working box, wherein a placing cavity is arranged in the working box in a front-back through mode, first sliding grooves which are bilaterally symmetrical and have inward openings are formed in the left inner wall and the right inner wall of the placing cavity, a battery pack is fixedly arranged on the top wall of the placing cavity, and a transmission cavity located on the right side of the battery pack is arranged on the top wall of the placing cavity;

a working rod is arranged in the first sliding groove in a sliding manner, two threaded holes are formed in the working rod in an up-and-down through manner, a rack is fixedly arranged on the left end face of the working rod, two first sliding grooves are connected with a screw rod in an up-and-down rotating manner, the left screw rod penetrates through the left threaded hole and is meshed with the left threaded hole, the right screw rod penetrates through the right threaded hole and is meshed with the right threaded hole, a signboard positioned at the rear side of the working rod is fixedly arranged on the inner wall of the placing cavity, a cleaning strip is fixedly arranged on the rear end face of the part of the working rod positioned in the placing cavity, ratchet cavities which are vertically symmetrical and are opened rightwards are arranged on the left inner wall of the first sliding groove on the left side, ratchet transmission shafts are respectively connected with the front and rear inner walls of the ratchet cavities in a rotating manner, and a ratchet wheel, a second winding wheel positioned at the rear side of the first winding wheel is fixedly arranged on the ratchet transmission shaft at the upper side, a first pull rope is fixedly wound on the first winding wheel at the upper side, a second pull rope is fixedly wound on the first winding wheel at the lower side, a third pull rope is fixedly wound on the second winding wheel, a chain wheel transmission cavity is arranged on the inner wall of the first chute, two screw rods penetrate through the upper inner wall and the lower inner wall of the chain wheel transmission cavity and are in rotating fit connection with the upper inner wall and the lower inner wall of the chain wheel transmission cavity, chain wheels are fixedly arranged at the positions of the two screw rods positioned in the chain wheel transmission cavity, the two chain wheels are in driving fit connection through transmission chain, a first bevel gear is fixedly arranged at the position of the right side, where the screw rod extends into the transmission cavity, a motor is fixedly arranged on the inner wall at the left side of the transmission cavity, and a spline shaft which extends rightwards and is in rotating fit connection, spline fit has bilateral symmetry's spline housing on the integral key shaft, fixed being equipped with annular plectrum on the spline housing, rotate on the integral key shaft and be equipped with two bilateral symmetry between the spline housing and all with first bevel gear engaged with second bevel gear.

Furthermore, twelve rotating cavities with outward openings are arranged in the ratchet wheel, the opening angle of the rotating cavity in the ratchet wheel on the upper side is vertically symmetrical to the opening angle of the rotating cavity in the ratchet wheel on the upper side, fixing rods are fixedly arranged on the front cavity wall and the rear cavity wall in the rotating cavity, rotating teeth are arranged on the fixing rods, and torsion springs are arranged between the rotating teeth and the fixing rods.

Furthermore, a second sliding groove with a downward opening is arranged on the top wall in the transmission cavity, a shifting block is arranged in the second sliding groove in a sliding manner, shifting block ports with downward openings are arranged on the end surface of the bottom of the shifting block in a bilateral symmetry manner, the left annular shifting block is connected with the left shifting block port in a rotating fit manner through a bearing, the right annular shifting block is connected with the right shifting block port in a rotating fit manner through a bearing, a first spring fixedly connected with the left end surface of the second sliding groove is fixedly arranged on the left end surface of the shifting block, the other end, far away from the upper side, of the first winding wheel of the first pull rope is fixedly connected onto the left end surface of the shifting block, bayonets with outward openings are arranged on the shifting block in a front-back symmetry manner, clamping block cavities with inward openings are arranged on the front-back inner wall of the second sliding groove in a front-back, the front end face of the fixture block on the front side is fixedly provided with a second spring fixedly connected with the inner wall of the front side of the fixture block cavity on the front side, the front end face of the fixture block on the front side is fixedly connected with the other end of the second pull rope, which is far away from the first winding wheel on the lower side, and the rear end face of the fixture block on the rear side is fixedly provided with a first electromagnetic spring fixedly connected with the inner wall of the rear side of the fixture block cavity on the rear side.

Furthermore, a water inlet through hole positioned on the left side of the battery pack is arranged on the top wall in the placing cavity, a through hole on the right side of the water inlet through hole is communicated with external water injection equipment through a pipeline, a sealing block sliding cavity with an upward opening and used for cutting the water inlet through hole is arranged on the inner bottom wall in the water inlet through hole, a sealing block is arranged in the sealing block sliding cavity in a sliding manner, a first electrifying block is fixedly arranged in the sealing block, first conducting strips which are bilaterally symmetrical and matched with the first electrifying block are fixedly arranged on the left and right inner walls of the sealing block sliding cavity, a third spring fixedly connected with the inner bottom wall of the sealing block sliding cavity is fixedly arranged on the bottom end surface of the sealing block, a fourth stay cord is fixedly arranged on the top end surface of the sealing block, and a sprinkling through hole which is positioned on the left side of the sealing block sliding cavity and communicated, the water inlet through hole is internally provided with a lifting box in a sliding manner, the lifting box is internally provided with a lifting box top end face, the fourth pull rope is fixedly connected with the other end of the sealing block far away from the water inlet through hole, a liquid storage cavity is arranged in the lifting box, a fourth through hole matched with the third through hole is arranged on the inner wall of the right side of the liquid storage cavity in a penetrating manner, the elasticity of a third spring is smaller than the sum of the gravity of water filled in the liquid storage cavity and the gravity of the lifting box, the elasticity of the third spring is larger than the gravity of the lifting box, a floating block cavity is arranged on the inner wall of the left side of the lifting cavity, a floating block is arranged in the floating block cavity, a drain hole is arranged on the inner wall of the left side of the floating block cavity, a third sliding groove with a downward opening is arranged on the top wall in the floating block cavity, second conducting strips which are bilaterally symmetrical are fixedly arranged on the left and right inner walls of the third sliding groove, a mandril sliding block is arranged in the third sliding groove in a sliding manner, a second electrifying block matched with the second conducting strips is fixedly arranged in, the ejector rod slider is characterized in that a fifth spring fixedly connected with the top wall in the third chute is fixedly arranged on the top end face of the ejector rod slider, a starting cavity is formed in the top wall in the third chute, a starting block is arranged in the starting cavity in a sliding mode, the bottom end face of the starting block is fixedly connected with a fifth pull rope, the other end of the ejector rod slider is far away from the fifth pull rope, a second electromagnetic spring fixedly connected with the top wall in the starting cavity is fixedly arranged on the top end face of the starting block, a set of series connection is formed by first conducting strip electricity, a set of series connection is formed by second conducting strip electricity, the storage battery is connected with a set of series connection through the second electromagnetic spring and a second circuit of an external power supply, and the storage battery is electrically connected with a set of series.

Furthermore, be equipped with the trapezoidal open-ended rain groove that gathers materials that makes progress on the terminal surface of work box top, it is equipped with downwardly extending and the communicating rain hole that gathers materials in floating block chamber to link up on the diapire in the rain groove that gathers materials, the internal fixed filter screen that is equipped with that gathers materials, work box right side terminal surface fixedly connected with and ground fixed connection's connecting rod.

Furthermore, first meshing teeth which are bilaterally symmetrical are fixedly arranged on the end faces of the inner sides of the two spline sleeves, and second meshing teeth which are bilaterally symmetrical and matched with the first meshing teeth are fixedly arranged on the end faces of the outer sides of the two second bevel gears.

The invention has the beneficial effects that: the automatic cleaning device is simple in structure and convenient and fast to operate, realizes the situation of utilizing the volatilization of water in the liquid storage cavity, automatically cleans the surface of the road signboard at regular intervals, ensures that the road signboard can effectively reflect light rays, prompts road information in front of a coming vehicle, can automatically clean the surface of the signboard when raining, automatically resets equipment after cleaning is completed, and prevents a working rod from stopping on the surface of the signboard to shield the information on the signboard.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural diagram at A-A in FIG. 1 according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram at B-B in FIG. 1 according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram at C-C in FIG. 1 according to an embodiment of the present invention;

FIG. 5 is an enlarged schematic view of the embodiment of the present invention at D in FIG. 1;

FIG. 6 is an enlarged view of the ratchet wheel of FIG. 1;

FIG. 7 is an enlarged view of the ratchet wheel of FIG. 1;

FIG. 8 is a left side view of the ratchet cavity of FIG. 1;

FIG. 9 is a left side view of the ratchet cavity of the lower side of FIG. 1 according to the embodiment of the present invention.

Detailed Description

The invention will now be described in detail with reference to fig. 1-9, wherein for ease of description the orientations described below are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

Combine figures 1-9 an automatic clear road sign board, including work box 10, link up around being equipped with in work box 10 and place chamber 58, it is equipped with bilateral symmetry and the inward first spout 44 of opening to place chamber 58 left and right sides inner wall, place fixed group battery 21 that is equipped with on the chamber 58 interior roof, it is equipped with on the chamber 58 interior roof and is located the transmission chamber 15 on group battery 21 right side to place, it is equipped with work bar 45 to slide in the first spout 44, it is equipped with two screw holes 46 to link up from top to bottom in the work bar 45, the fixed rack 54 that is equipped with on the left side terminal surface of work bar 45, two all rotate on the upper and lower inner wall of first spout 44 and be connected with screw rod 43, left screw rod 43 runs through left screw hole 46 and mesh with it, the right side screw rod 43 runs through the right side screw hole 46 and mesh with it, it is equipped with the signboard 69 that is located the work bar 45 rear side to place fixed being, the rear end face of the part of the working rod 45 located in the placing cavity 58 is fixedly provided with a cleaning strip 68, the inner wall of the left side of the first sliding chute 44 on the left side is provided with ratchet cavities 51 which are symmetrical up and down and have right openings, the front inner wall and the rear inner wall of each of the two ratchet cavities 51 are rotatably connected with ratchet transmission shafts 52, the two ratchet transmission shafts 52 are respectively fixedly provided with a ratchet wheel 53 and a first winding wheel 67 located on the rear side of the ratchet wheel 53, the ratchet transmission shaft 52 on the upper side is fixedly provided with a second winding wheel 68 located on the rear side of the first winding wheel 67, the first winding wheel 67 on the upper side is fixedly wound with a first pull rope 50, the first winding wheel 67 on the lower side is fixedly wound with a second pull rope 59, the second winding wheel 68 is fixedly wound with a third pull rope 39, the inner wall of the first sliding chute 44 is provided with a sprocket transmission cavity 55, and the two screws 43 penetrate through the upper inner wall and the lower inner wall of the sprocket transmission cavity 55 and are connected with the sprocket, the two screw rods 43 are positioned on the positions in the chain wheel transmission cavity 55, the two chain wheels 56 are fixedly provided with chain wheels 56, the two chain wheels 56 are in transmission fit connection through a transmission chain 57, the screw rod 43 on the right side extends into the position in the transmission cavity 15, a first bevel gear 14 is fixedly provided with the position, the inner wall of the left side of the transmission cavity 15 is fixedly provided with a motor 20, the end face of the right side of the motor 20 is in power connection with a spline shaft 13 which extends rightwards and is in rotation fit connection with the inner wall of the right side of the transmission cavity 15, the spline shaft 13 is in spline fit with a bilateral symmetric spline housing 19, the spline housing 19 is fixedly provided with an annular shifting piece 12, and the spline shaft 13 is rotatably provided with a second bevel gear 18 which is bilaterally symmetric between the two spline housings 19 and is meshed.

Beneficially, twelve rotating cavities 72 with outward openings are arranged in the ratchet wheel 53, the opening angle of the rotating cavity 72 in the ratchet wheel 53 at the upper side and the opening angle of the rotating cavity 72 in the ratchet wheel 53 at the upper side are vertically symmetrical, a fixing rod 70 is fixedly arranged on the front cavity wall and the rear cavity wall in the rotating cavity 72, a rotating tooth 73 is arranged on the fixing rod 70, and a torsion spring 71 is arranged between the rotating tooth 73 and the fixing rod 70.

Beneficially, a second sliding groove 16 with a downward opening is formed in the inner top wall of the transmission cavity 15, a shifting block 17 is slidably arranged in the second sliding groove 16, bilaterally symmetrical shifting block ports with a downward opening are formed in the end face of the bottom of the shifting block 17, the left annular shifting block 12 is connected with the left shifting block port in a rotating fit mode through a bearing, the right annular shifting block 12 is connected with the right shifting block port in a rotating fit mode through a bearing, a first spring 61 fixedly connected with the left end face of the second sliding groove 16 is fixedly arranged on the left end face of the shifting block 17, the other end, far away from the upper side, of the first winding wheel 67 is fixedly connected with the first pull rope 50, a forward and backward symmetrical bayonet 65 with an outward opening is formed in the shifting block 17, and forward and backward symmetrical clamping block cavities 64 with an inward opening are formed in the forward and backward inner walls of the second sliding groove 16, a fixture block 62 is slidably arranged in each of the two fixture block cavities 64, a second spring 66 fixedly connected with the front inner wall of the front fixture block cavity 64 is fixedly arranged on the front end face of the front fixture block 62, the other end of the second pull rope 59 far away from the first winding wheel 67 on the lower side is fixedly connected with the front end face of the front fixture block 62, and a first electromagnetic spring 63 fixedly connected with the rear inner wall of the rear fixture block cavity 64 is fixedly arranged on the rear end face of the rear fixture block 62.

It is beneficial, be equipped with on placing the interior roof of chamber 58 and be located the left water inlet hole 36 of group battery 21, the through-hole on water inlet hole 36 right side passes through the pipeline with external water injection equipment and communicates, it upwards just cuts to be equipped with the opening on the bottom wall of water inlet hole 36 the sealed piece sliding chamber 34 of water inlet hole 36, it is equipped with sealed piece 22 to slide in the sealed piece sliding chamber 34, sealed piece 22 internal fixation is equipped with first circular telegram piece 24, fixed be equipped with bilateral symmetry on the sealed piece sliding chamber 34 about on the inner wall with first circular telegram piece 24 matched with first conducting strip 33, fixed be equipped with on the sealed piece 22 bottom terminal surface with sealed piece sliding chamber 34 bottom wall fixed connection's third spring 35, fixed be equipped with fourth stay cord 23 on the sealed piece 22 top terminal surface, it is located to link up on the bottom wall in water inlet hole 36 sealed piece sliding chamber 34 left with the communicating through-hole 38 of placing chamber 58 of signboard 69 front side is drenched, slide in the inlet opening hole 36 and be equipped with and be located the left opening of sealed piece sliding chamber 34 valve block 37 to the right, it is equipped with first through-hole 25 to link up on the terminal surface of valve block 37 top, link up on the terminal surface of valve block 37 bottom be equipped with sprinkle through-hole 38 matched with second through-hole 27, fixedly on the terminal surface of valve block 37 left side be equipped with inlet opening hole 36 left side inner wall fixed connection's fourth spring 40, fixedly connected with on the terminal surface of valve block 37 left side the third stay cord 39 is kept away from the other end of second winding wheel 68, link up on the roof in the inlet opening hole 36 be equipped with first through-hole 25 matched with third through-hole 26, be equipped with lift chamber 28 on the inner wall of inlet opening hole 36 left side, the intercommunication is equipped with on the inner wall of lift chamber 28 right side the third through-hole 26 is kept away from the other end of inlet opening hole 36, the other end of the fourth pull rope 23 far away from the sealing block 22 is fixedly connected to the end face of the top of the lifting box 41, a liquid storage cavity 31 is arranged in the lifting box 41, a fourth through hole 32 matched with the third through hole 26 is arranged on the inner wall of the right side of the liquid storage cavity 31 in a penetrating manner, the elasticity of the third spring 35 is smaller than the sum of the gravity of the water filled in the liquid storage cavity 31 and the gravity of the lifting box 41, the elasticity of the third spring 35 is larger than the gravity of the lifting box 41, a floating block cavity 47 is arranged on the inner wall of the left side of the lifting cavity 28, a floating block 48 is arranged in the floating block cavity 47, a drain hole 49 is arranged on the inner wall of the left side of the floating block cavity 47, a third sliding groove 79 with a downward opening is arranged on the inner top wall of the floating block cavity 47, second conducting strips 78 which are bilaterally symmetrical are fixedly arranged on the left and right inner walls of, a second electricity-conducting block 80 matched with the second electricity-conducting block 78 is fixedly arranged in the ejector rod slide block 81, a fifth pull rope 77 is fixedly arranged on the top end surface of the ejector rod slide block 81, a fifth spring 82 fixedly connected with the top wall in the third slide groove 79 is fixedly arranged on the top end surface of the ejector rod slide block 81, a starting cavity 74 is arranged on the top wall in the third slide groove 79, a starting block 76 is arranged in the starting cavity 74 in a sliding manner, the bottom end surface of the starting block 76 is fixedly connected with the other end of the fifth pull rope 77 far away from the ejector rod slide block 81, a second electromagnetic spring 75 fixedly connected with the top wall in the starting cavity 74 is fixedly arranged on the top end surface of the starting block 76, the first electricity-conducting block 33 is electrically connected with a group of first circuits which are connected in series with the second electromagnetic spring 75 and an external power supply, the second electricity-conducting block 78 is electrically connected with a group of second circuits which are connected in series with, the battery 21 is electrically connected to a set of third circuits connected in series to the motor 20.

Beneficially, the top end face of the working box 10 is provided with a rain collecting groove 30 with an upward trapezoidal opening, a rain collecting hole 42 which extends downwards and is communicated with the floating block cavity 47 is formed in the inner bottom wall of the rain collecting groove 30 in a penetrating manner, a filter screen 29 is fixedly arranged in the rain collecting hole 42, and the end face of the right side of the working box 10 is fixedly connected with a connecting rod 101 fixedly connected with the ground.

Advantageously, first engaging teeth which are bilaterally symmetrical are fixedly arranged on the end faces of the inner sides of the two spline housings 19, and second engaging teeth which are bilaterally symmetrical and matched with the first engaging teeth are fixedly arranged on the end faces of the outer sides of the two second bevel gears 18.

In an initial state, the operating rod 45 is located at a lower limit position, so that the rack 54 is engaged with the lower side, the first winding wheel 67 winds up the second pull rope 59, the front fixture block 62 is retracted into the front fixture block cavity 64, the dial block 17 is located at a left limit position, so that the two spline housings 19 are located at a left limit position, so that the first engaging tooth on the right side is engaged with the second engaging tooth on the right side, the rear fixture block 62 is inserted into the rear fixture block 65 under the action of the first electromagnetic spring 63, so that the rear fixture block 62 is abutted against the inner wall of the rear fixture block 65, the starting block 76 is located at the lower limit position under the action of the second electromagnetic spring 75, the push rod slider 81 is inserted into the floating block cavity 47 under the action of the fifth spring 82, so that the second conducting block 80 is electrically disconnected from the second conducting strip 78, the floating block 48 is located at a lower limit position in the floating block cavity 47, the liquid storage cavity 31 is filled with water, the lifting box 41 is located at the lower limit position, so that the fourth pull rope 23 is pulled tightly, the sealing block 22 is located at an upper limit position and seals and cuts off the water inlet through hole 36, the lifting box 41 is located at the lower limit position, the third through hole 26 is separated from and communicated with the fourth through hole 32, the sealing block 22 is located at the upper limit position, the first electrifying block 24 is electrically disconnected from the first conducting strip 33, the valve block 37 is located at a right limit position under the action of the fourth spring 40, the first through hole 25 is separated from and communicated with the third through hole 26, and the second through hole 27 is communicated with the sprinkling through hole 38.

When the sum of the gravity of the residual water volatilized from the water in the liquid storage cavity 31 and the gravity of the lifting box 41 is smaller than the elastic force of the third spring 35, the sealing block 22 is contracted downwards into the sealing block sliding cavity 34 under the action of the third spring 35, and the fourth pull rope 23 is pulled tightly, so that the lifting box 41 is displaced upwards, the fourth through hole 32 is communicated with the third through hole 26, the sealing block 22 is contracted into the sealing block sliding cavity 34, so that the external water is filled into the valve block 37, the water flows into the front side surface of the signboard 69 through the second through hole 27 and the sprinkling through hole 38, the sealing block 22 is contracted into the sealing block sliding cavity 34, so that the first electrifying block 24 is electrically connected with the first conducting strip 33, the first circuit is electrified, the second electromagnetic spring 75 is electrified by the first circuit, and the starting block 76 is displaced upwards under the action of the second electromagnetic spring 75, thereby tensioning the fifth pull rope 77, causing the push rod sliding block 81 to contract upwards into the third sliding chute 79, causing the second electrifying block 80 to be electrically connected with the second conducting strip 78, electrifying the second circuit, and electrifying the second circuit to charge the storage battery 21;

when the storage battery 21 has electric quantity, the third circuit is electrified to electrify the first electromagnetic spring 63, so that the clamping block 62 at the rear side is contracted backwards under the action of the first electromagnetic spring 63 and is separated from and abutted against the inner wall of the clamping block 65 at the rear side, the shifting block 17 is displaced rightwards under the action of the first spring 61, and then the two spline housings 19 are driven to be displaced rightwards to the right limit position, so that the first meshing teeth at the right side are separated from meshing with the second meshing teeth at the right side, and the first meshing teeth at the left side are meshed with the second meshing teeth at the left side, the third circuit is electrified, so that the motor 20 drives the spline shaft 13 and the two spline housings 19 to rotate, so that the spline housing 19 at the left side drives the second bevel gear 18 at the left side meshed with the spline housing to rotate, the second bevel gear 18 at the left side rotates to drive the first bevel gear 14 to rotate forwardly, so as to drive the screw 43, thereby driving the left sprocket 56 to rotate forward, driving the left screw 43 to rotate forward, further driving the working rod 45 engaged with the left screw 43 through the left threaded hole 46 and the right threaded hole 46 to move upward, and driving the cleaning strip 68 to clean the signboard 69 upward;

the working rod 45 moves upwards to drive the rack 54 to move upwards, when the rack 54 is meshed with the rotating teeth 73 on the ratchet wheel 53 on the upper side, the rack 54 moves upwards to drive the ratchet wheel 53 on the upper side to rotate, so as to drive the ratchet transmission shaft 52 on the upper side to rotate, the ratchet transmission shaft 52 on the upper side rotates to drive the second winding wheel 68 and the first winding wheel 67 on the upper side to rotate, so as to tension the first pull rope 50 and the third pull rope 39, tension the first pull rope 50, cause the shifting block 17 to move leftwards, cause the first engaging teeth on the left side to be disengaged from the second engaging teeth on the left side, cause the first engaging teeth on the right side to be engaged with the second engaging teeth on the right side, cause the clamping block 62 on the front side to extend backwards into the clamping opening 65 on the front side under the action of the second spring 66, cause the clamping block 62 on the front side to be abutted against the inner wall of the clamping opening 65 on the front side, cause the first engaging teeth on the right side to be, the right second bevel gear 18 rotates to drive the right first bevel gear 14 engaged with the right second bevel gear to rotate reversely, so that the working rod 45 is displaced downwards;

the third pull rope 39 is pulled tightly to drive the valve block 37 to move leftwards, so that the second through hole 27 is separated from the sprinkling through hole 38, the first through hole 25 is communicated with the third through hole 26, and the externally filled water flows into the liquid storage cavity 31 instead of flowing into the front side surface of the signboard;

when the operating rod 45 is displaced downwards, the valve block 37 returns to the initial state under the action of the fourth spring 40 after the rack 54 is disengaged from the rotating teeth 73 on the ratchet wheel 53 on the upper side, so that the first through hole 25 is separated from the third through hole 26, the second through hole 27 is communicated with the sprinkling through hole 38, and water flows into the front side surface of the nameplate again;

when the working rod 45 moves downwards to enable the rack 54 to be meshed with the rotating teeth 73 on the ratchet wheel 53 at the lower side, the rack 54 moves downwards to drive the ratchet wheel 53 at the lower side to rotate, so as to drive the ratchet transmission shaft 52 at the lower side and the first winding wheel 67 at the lower side to rotate, further tension the second pull rope 59, enable the clamping block 62 at the front side to contract forwards to be disengaged from and abutted against the inner wall of the bayonet 65 at the front side, further enable the shifting block 17 to move rightwards under the action of the first spring 61, further drive the two spline sleeves 19 to move rightwards to the right limit position, and enable the working rod 45 to move upwards to finish the cleaning operation of the signboard;

when the sum of the gravity of the water in the liquid storage cavity 31 and the gravity of the lifting box 41 is greater than the elastic force of the third spring 35, the lifting box 41 moves downwards to return to the initial state, so that the fourth pull rope 23 is tensioned, the sealing block 22 returns to the initial state, the first circuit is powered off, the starting block 76 returns to the initial state under the action of the second electromagnetic spring 75, the ejector rod sliding block 81 returns to the initial state under the action of the fifth spring 82, the second circuit is powered off, the rear clamping block 62 returns to the initial state under the action of the first electromagnetic spring 63 and is abutted against the inner wall of the rear bayonet 65 again, the working rod 45 does not move upwards any more after moving downwards to the lower limit position, and the third circuit is powered off until the electric quantity in the storage battery is exhausted;

when the outside is in heavy rain, the rainwater is gathered through the rainwater collection groove 30, passes through the filter screen 29 and then flows through the rainwater collection holes 42 to enter the floating block cavity 47;

when the drainage rate of the drainage holes 49 in the floating block cavity 47 is lower than the rate of rainwater flowing into the floating block cavity 47 through the rainwater collection holes 42, rainwater is accumulated in the floating block cavity 47, so that the liquid level in the floating block cavity 47 rises, the floating block 48 is displaced upwards to extrude the ejector rod sliding block 81, the second electrifying block 80 is electrically connected with the second conducting strip 78, the second circuit is electrified, and cleaning operation is started;

when the drainage rate of the drainage hole 49 in the floating block cavity 47 is greater than the rate of rainwater flowing into the floating block cavity 47 through the rainwater collection hole 42, the liquid level in the floating block cavity 47 will drop, so that the floating block 48 will displace downwards, and the ejector rod slide block 81 will return to the initial state under the action of the fifth spring 82, thereby ending the cleaning operation.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an automatic clear road sign board, includes the work box, its characterized in that: a placing cavity is arranged in the working box in a front-back through mode, first sliding grooves which are symmetrical left and right and have inward openings are formed in the left inner wall and the right inner wall of the placing cavity, a battery pack is fixedly arranged on the top wall of the placing cavity, and a transmission cavity located on the right side of the battery pack is arranged on the top wall of the placing cavity; a working rod is arranged in the first sliding groove in a sliding manner, two threaded holes are formed in the working rod in an up-and-down through manner, a rack is fixedly arranged on the left end face of the working rod, two first sliding grooves are connected with a screw rod in an up-and-down rotating manner, the left screw rod penetrates through the left threaded hole and is meshed with the left threaded hole, the right screw rod penetrates through the right threaded hole and is meshed with the right threaded hole, a signboard positioned at the rear side of the working rod is fixedly arranged on the inner wall of the placing cavity, a cleaning strip is fixedly arranged on the rear end face of the part of the working rod positioned in the placing cavity, ratchet cavities which are vertically symmetrical and are opened rightwards are arranged on the left inner wall of the first sliding groove on the left side, ratchet transmission shafts are respectively connected with the front and rear inner walls of the ratchet cavities in a rotating manner, and a ratchet wheel, a second winding wheel positioned at the rear side of the first winding wheel is fixedly arranged on the ratchet transmission shaft at the upper side, a first pull rope is fixedly wound on the first winding wheel at the upper side, a second pull rope is fixedly wound on the first winding wheel at the lower side, a third pull rope is fixedly wound on the second winding wheel, a chain wheel transmission cavity is arranged on the inner wall of the first chute, two screw rods penetrate through the upper inner wall and the lower inner wall of the chain wheel transmission cavity and are in rotating fit connection with the upper inner wall and the lower inner wall of the chain wheel transmission cavity, chain wheels are fixedly arranged at the positions of the two screw rods positioned in the chain wheel transmission cavity, the two chain wheels are in driving fit connection through transmission chain, a first bevel gear is fixedly arranged at the position of the right side, where the screw rod extends into the transmission cavity, a motor is fixedly arranged on the inner wall at the left side of the transmission cavity, and a spline shaft which extends rightwards and is in rotating fit connection, spline fit has bilateral symmetry's spline housing on the integral key shaft, fixed being equipped with annular plectrum on the spline housing, rotate on the integral key shaft and be equipped with two bilateral symmetry between the spline housing and all with first bevel gear engaged with second bevel gear.

2. A self-cleaning road sign according to claim 1, wherein: twelve rotating cavities with outward openings are arranged in the ratchet wheel, the opening angle of the rotating cavity in the ratchet wheel on the upper side is vertically symmetrical to the opening angle of the rotating cavity in the ratchet wheel on the upper side, fixed rods are fixedly arranged on the front cavity wall and the rear cavity wall in the rotating cavity, rotating teeth are arranged on the fixed rods, and torsion springs are arranged between the rotating teeth and the fixed rods.

3. A self-cleaning road sign according to claim 1, wherein: the transmission cavity is internally provided with a second sliding groove with a downward opening on the top wall, a shifting block is arranged in the second sliding groove in a sliding manner, a shifting block port with a downward opening and a left side are arranged on the end face of the bottom of the shifting block, the annular shifting block is connected with the left side of the shifting block port in a rotating fit manner through a bearing, the annular shifting block is connected with the right side of the shifting block port in a rotating fit manner through a bearing, a first spring fixedly connected with the left end face of the second sliding groove is fixedly arranged on the end face of the left side of the shifting block, the first pull rope is fixedly connected with the other end of the first winding wheel far away from the upper side of the shifting block, a bayonet with a front and a rear symmetrical opening and an outward opening is arranged on the shifting block, a clamping block cavity with a front and a rear symmetrical opening and an inward opening is arranged on the front and rear inner walls of the second sliding groove, clamping blocks are all slidably arranged in the clamping block cavity, and a second bullet The front end face of the fixture block on the front side is fixedly connected with the other end, far away from the lower side, of the first winding wheel of the second pull rope, and the rear end face of the fixture block on the rear side is fixedly provided with a first electromagnetic spring fixedly connected with the inner wall of the rear side of the fixture block cavity on the rear side.

4. A self-cleaning road sign according to claim 1, wherein: the top wall of the placing cavity is provided with a water inlet through hole positioned on the left side of the battery pack, the through hole on the right side of the water inlet through hole is communicated with external water injection equipment through a pipeline, the inner bottom wall of the water inlet through hole is provided with a sealing block sliding cavity with an upward opening and used for cutting the water inlet through hole, a sealing block is arranged in the sealing block sliding cavity in a sliding manner, a first electrifying block is fixedly arranged in the sealing block, the left and right inner walls of the sealing block sliding cavity are fixedly provided with first conducting strips which are bilaterally symmetrical and matched with the first electrifying block, the bottom end face of the sealing block is fixedly provided with a third spring which is fixedly connected with the inner bottom wall of the sealing block sliding cavity, the top end face of the sealing block is fixedly provided with a fourth stay cord, the inner bottom wall of the water inlet through hole is penetratingly provided with a, the water inlet through hole is internally provided with a lifting box in a sliding manner, the lifting box is internally provided with a lifting box top end face, the fourth pull rope is fixedly connected with the other end of the sealing block far away from the water inlet through hole, a liquid storage cavity is arranged in the lifting box, a fourth through hole matched with the third through hole is arranged on the inner wall of the right side of the liquid storage cavity in a penetrating manner, the elasticity of a third spring is smaller than the sum of the gravity of water filled in the liquid storage cavity and the gravity of the lifting box, the elasticity of the third spring is larger than the gravity of the lifting box, a floating block cavity is arranged on the inner wall of the left side of the lifting cavity, a floating block is arranged in the floating block cavity, a drain hole is arranged on the inner wall of the left side of the floating block cavity, a third sliding groove with a downward opening is arranged on the top wall in the floating block cavity, second conducting strips which are bilaterally symmetrical are fixedly arranged on the left and right inner walls of the third sliding groove, a mandril sliding block is arranged in the third sliding groove in a sliding manner, a second electrifying block matched with the second conducting strips is fixedly arranged in, the ejector rod slider is characterized in that a fifth spring fixedly connected with the top wall in the third chute is fixedly arranged on the top end face of the ejector rod slider, a starting cavity is formed in the top wall in the third chute, a starting block is arranged in the starting cavity in a sliding mode, the bottom end face of the starting block is fixedly connected with a fifth pull rope, the other end of the ejector rod slider is far away from the fifth pull rope, a second electromagnetic spring fixedly connected with the top wall in the starting cavity is fixedly arranged on the top end face of the starting block, a set of series connection is formed by first conducting strip electricity, a set of series connection is formed by second conducting strip electricity, the storage battery is connected with a set of series connection through the second electromagnetic spring and a second circuit of an external power supply, and the storage battery is electrically connected with a set of series.

5. A self-cleaning road sign according to claim 1, wherein: the improved rain collecting device is characterized in that an upward trapezoidal opening rain collecting groove is formed in the end face of the top of the working box, a rain collecting hole which extends downwards and is communicated with the floating block cavity is formed in the bottom wall of the rain collecting groove in a communicated mode, a filter screen is fixedly arranged in the rain collecting hole, and the end face of the right side of the working box is fixedly connected with a connecting rod fixedly connected with the ground.

6. A self-cleaning road sign according to claim 1, wherein: first meshing teeth which are bilaterally symmetrical are fixedly arranged on the end faces of the inner sides of the two spline sleeves, and second meshing teeth which are bilaterally symmetrical and matched with the first meshing teeth are fixedly arranged on the end faces of the outer sides of the two second bevel gears.