CN111794154B - Guardrail water spraying mechanism with good cleaning and wetting effects and using method thereof - Google Patents
Guardrail water spraying mechanism with good cleaning and wetting effects and using method thereof Download PDFInfo
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- CN111794154B CN111794154B CN202010675918.1A CN202010675918A CN111794154B CN 111794154 B CN111794154 B CN 111794154B CN 202010675918 A CN202010675918 A CN 202010675918A CN 111794154 B CN111794154 B CN 111794154B
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- guardrail
- sliding rod
- sliding block
- sliding
- water spraying
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/003—Upkeep of road sides along the pavement, for instance cleaning devices particularly for side strips
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/10—Hydraulically loosening or dislodging undesirable matter; Raking or scraping apparatus ; Removing liquids or semi-liquids e.g., absorbing water, sliding-off mud
- E01H1/101—Hydraulic loosening or dislodging, combined or not with mechanical loosening or dislodging, e.g. road washing machines with brushes or wipers
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- Engineering & Computer Science (AREA)
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention belongs to the field of municipal engineering, and particularly relates to a guardrail water spraying mechanism with good cleaning and wetting effects and a use method thereof. According to the invention, when the shell is close to the guardrail, the first slide bar is arranged, and the guardrail is made of ferromagnetic materials, so that the slide block can move up and down under the action of the magnetic strip, the spray head can move up and down for a certain distance, and the conditions that the guardrail has a dead angle position which cannot be cleaned by water due to the fixed arrangement of the spray head and the like are avoided.
Description
Technical Field
The invention belongs to the field of municipal engineering, and particularly relates to a guardrail water spraying mechanism with good cleaning and wetting effects and a use method thereof.
Background
Road guardrail generally sets up in the middle of the road, can play the spaced effect, can separate the lane of equidirectional not, can also play the function of blocking simultaneously, can block pedestrian or bicycle or the motor vehicles who tries to cross the road, and then the security of road has been improved, can effectual improvement traffic order, but because the coming and going of vehicle on the road can constantly raise subaerial dust, the dust of raising will be attached to on the guardrail, so not only influence the aesthetic property of guardrail, and the dust will constantly adsorb moisture and make the guardrail be in moist environment by dust parcel department, lead to the guardrail to be corroded easily, make the guardrail damage easily.
In order to solve the influence of dust on the guardrail, the guardrail is cleaned regularly by the guardrail cleaning vehicle in general municipal works, the operation flow of the existing guardrail cleaning vehicle is that after the guardrail is sprayed with water and wetted by the water spraying mechanism and is preliminarily washed, the guardrail is brushed by the cleaning roller, but in the current process of wetting the guardrail, because the position of the spray head is fixedly arranged, the water quantity far away from the center of the spray head is less, so that the driving-in washing effect of the guardrail is poorer, and the spray head is generally arranged right against the front side of the guardrail with more dirt, therefore, the side face of the guardrail has a cleaning dead angle, if the sprayer needs to be ensured to have a sufficient cleaning and wetting effect on the guardrail, the water consumption is increased basically by increasing the water amount at present, and the water resource waste is caused.
Therefore, the guardrail water spraying mechanism with good cleaning and wetting effects and the use method thereof are provided to solve the problems.
Disclosure of Invention
The invention aims to solve the problems and provides a guardrail water spraying mechanism which is water-saving, has a good cleaning effect on a guardrail and has a good wetting effect and a using method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a clean moist respond well guardrail water spray mechanism, includes the casing that is connected with clean mechanism, the fixed strip of two vertical settings of casing one side fixedly connected with, two the slide bar group that a plurality of equidistance of fixedly connected with distribute between the fixed strip, slide bar group comprises two first slide bars and the second slide bar of mutual parallel arrangement, first slide bar is located second slide bar below, first slide bar sliding connection has the sliding block, be equipped with water spray mechanism on the sliding block, second slide bar sliding connection has magnetic location ball, location ball bottom end fixedly connected with bottom and sliding block fixed connection's connecting plate.
In foretell guardrail water spray mechanism that moist respond well, water spray mechanism comprises connecting block, magnetic stripe, shower nozzle and inlet tube, the connecting block is connected with the sliding block, the magnetic stripe is equipped with two and fixed connection in the connecting block both sides respectively, one side fixed connection of sliding block is kept away from with the connecting block to the shower nozzle, inlet tube through connection piece just communicates the setting with the shower nozzle, the inlet tube top run through the location ball and with location ball fixed connection.
In the clean moist respond well guardrail water spray mechanism of foretell, connecting block and sliding block fixed connection.
In the guardrail water spraying mechanism with good cleaning and wetting effects, the connecting block is horizontally and rotatably connected with the sliding block
In the guardrail water spraying mechanism with good cleaning and wetting effects, the shell is internally provided with the water supply pipe, and the top end of the water inlet pipe penetrates through the side wall of the shell and extends into the shell to be communicated with the water supply pipe.
In foretell guardrail water spray mechanism that clean moist respond well, first slide bar and second slide bar are towards being close to clean mechanism direction tilt up setting, the location ball does not have under the exogenic action with the sliding block and lies in second slide bar and the setting of first slide bar lowest end respectively.
In foretell wet respond well guardrail water spray mechanism, first slide bar and second slide bar are towards being close to clean mechanism downward sloping setting, the axial cover is equipped with the spring on the first slide bar, the spring both ends respectively with fixed strip and sliding block fixed connection, the below setting that the spring is located the sliding block, the sliding block does not have the exogenic action with the location ball and lies in first slide bar and second slide bar topmost setting respectively down.
The invention also discloses a use method of the guardrail water spraying mechanism with good cleaning and wetting effects, which comprises the following steps:
s1, the cleaning vehicle drives the shell to move forwards linearly, the spray head sprays water to clean and wet the guardrail, and the spray head moves towards and away from the guardrail relative to the guardrail;
s2, when the sliding block moves forwards continuously after facing the guardrail rail, the nozzle can enable the sliding block to slide upwards along the first sliding rod under the action of the magnetic strip, the positioning ball can gradually slide upwards along the second sliding rod under the action of the magnetic force of the positioning ball, the nozzle always faces the guardrail rail in a certain time relative to the guardrail rail, and the nozzle gradually moves upwards, so that the guardrail can be cleaned in the up-and-down direction, and the guardrail can be effectively prevented from being subjected to dead angle position incapable of being washed due to the fact that the nozzle is fixed;
s3, when the sliding block moves towards the direction of the rail and the distance between the sliding block and the rail is small, the magnetic strip is attracted by the rail, so that the magnetic strip drives the connecting block and the sliding block to horizontally rotate and move, the spray head inclines towards the direction of the rail, and water sprayed by the spray head can be sprayed to the rail;
s4, when the sliding block moves away from the rail, the magnetic stripe drives the connecting block to horizontally rotate backwards, so that the spray head tilts backwards towards the rail, the spray head is ensured to always face the rail in the whole process, water sprayed out of the spray head is ensured to be sprayed on the rail all the time, and the spray head is ensured to have a good inclined wetting effect on the rail;
s5, after the enough distance of cleaning vehicle motion, the sliding block moves to the topmost end of the first sliding rod, when the cleaning vehicle continues to move forward, the distance between the magnetic strip and the railing increases gradually, the railing reduces the magnetic attraction of the magnetic strip gradually, so that the sliding block can drive the spray head to move downwards, if the distance between the two railings of the guardrail is small, the railing in front of the spray head can generate the magnetic attraction to the spray head, the sliding block and other structures can slide downwards along the first sliding rod more quickly, so that the spray head is more quickly close to the railing in front of the spray head, and the steps are repeated.
Compared with the prior art, the guardrail water spraying mechanism with good cleaning and wetting effects and the using method thereof have the advantages that:
1. according to the invention, when the shell is close to the guardrail, the first sliding rod is arranged, and the guardrail is made of ferromagnetic materials, so that the sliding block can move up and down under the action of the magnetic strip, the spray head can move up and down for a certain distance, and the conditions that the guardrail has a dead angle position which cannot be cleaned by water due to the fixed arrangement of the spray head are avoided.
2. According to the invention, the connecting block and the sliding block are rotatably connected, so that the spray head can deflect in the horizontal direction under the action of the magnetic strip, and further, when the spray head moves away from or close to the guardrail, the spray head can deflect under the action of the magnetic strip, so that the spray head sprays water towards the guardrail, the side surface of the guardrail can be well cleaned, and the flushing effect on the guardrail can be further improved.
3. According to the invention, the sliding block can be positioned at the topmost end of the first sliding rod under the action of no external force by arranging the spring, so that when the shell moves, the sliding block can drive the spray head to gradually move downwards, the guardrail can be cleaned from top to bottom, and the flushing effect on the guardrail can be improved.
4. According to the invention, the sliding block can be limited by arranging the positioning ball and the connecting plate, so that the sliding block can only slide with the first sliding rod and cannot rotate, and the stability of the device is improved.
5. According to the invention, the water inlet pipe is fixedly connected with the positioning ball, and the positioning ball can play a role in separation, so that the situation that the actual water spraying effect is poor and the like due to the fact that the sliding of the sliding block or the rotation of the connecting block is blocked because of the existence of the water inlet pipe is avoided.
Drawings
Fig. 1 is a schematic top view of a working housing and a guardrail according to embodiment 1 of the present invention;
FIG. 2 is a schematic side view showing the structure of the side of the housing opposite to the guard rail in embodiment 1 of the present invention;
FIG. 3 is an enlarged view of the structure at A in FIG. 2;
FIG. 4 is a schematic top sectional view of the housing in embodiment 1 of the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 4;
fig. 6 is a side view schematically showing the structure of the side opposite to the guard rail in embodiment 2 of the present invention;
FIG. 7 is an enlarged view of the structure at B in FIG. 6;
fig. 8 is a schematic top sectional view of the housing in embodiment 3 of the present invention;
fig. 9 is a partially enlarged schematic view of fig. 8.
In the figure, 1 cleaning mechanism, 2 shell, 3 fixed bar, 4 sliding bar group, 5 first sliding bar, 6 second sliding bar, 7 sliding block, 8 water spraying mechanism, 9 positioning ball, 10 connecting plate, 11 connecting block, 12 magnetic bar, 13 spray head, 14 water inlet pipe, 15 water supply pipe and 16 spring.
Detailed Description
The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.
Example 1
As shown in fig. 1-5, a guardrail water spraying mechanism with good cleaning and wetting effects and a using method thereof comprise a shell 2 connected with a cleaning mechanism 1, wherein the cleaning mechanism 1 comprises a cleaning roller, a cleaning vehicle body and other structures, the direction of the head of the cleaning vehicle is taken as the front, and the shell 2 is arranged in front of the cleaning roller.
As shown in fig. 2, two vertically arranged fixing strips 3 are fixedly connected to one side of the housing 2, a plurality of sliding rod groups 4 are fixedly connected between the two fixing strips 3 and are distributed at equal intervals, each sliding rod group 4 is composed of a first sliding rod 5 and a second sliding rod 6 which are arranged in parallel, and the first sliding rod 5 is located below the second sliding rod 6.
As shown in fig. 4 and 5, the first sliding rod 5 is slidably connected with a sliding block 7, and the sliding block 7 is provided with a water spraying mechanism 8.
The water spraying mechanism 8 consists of a connecting block 11, a magnetic strip 12, a spray head 13 and a water inlet pipe 14.
Connecting block 11 and sliding block 7 fixed connection, magnetic stripe 12 is equipped with two and respectively fixed connection in 11 horizontal position both sides of connecting block, and one side fixed connection of sliding block 7 is kept away from with connecting block 11 to shower nozzle 13, and shower nozzle 13 is towards the guardrail direction when wasing, and inlet tube 14 through connection piece 11 just communicates the setting with shower nozzle 13, and the water in the inlet tube 14 will be through shower nozzle 13 blowout, and then realizes washing and moist to the guardrail.
The inlet tube 14 just is equipped with sufficient length for the hose setting, and the inlet tube 14 top run through location ball 9 and with location ball 9 fixed connection, and then avoid sliding block 7 to influence sliding of sliding block 7 when the motion because the position of inlet tube 14 changes, and then lead to the circumstances such as device effect variation.
The second sliding rod 6 is connected with a magnetic positioning ball 9 in a sliding manner, and the bottom end of the positioning ball 9 is fixedly connected with a connecting plate 10, the bottom end of which is fixedly connected with the sliding block 7.
Can realize spacing to location ball 9 and sliding block 7 through connecting block 11, and then ensure that location ball 9 and sliding block 7 can only slide along first slide bar 5 and first slide bar 5 respectively and can't rotate, and then avoid the position of shower nozzle 13 to swing wantonly, and then improved the stability of device.
Be equipped with delivery pipe 15 in the casing 2, the 14 tops of inlet tube run through the casing 2 lateral walls and extend to casing 2 in with delivery pipe 15 intercommunication settings, delivery pipe 15 passes through solenoid valve control switching, can realize supplying water to inlet tube 14 through delivery pipe 15, and then realize can spraying water to the guardrail with the shower nozzle 13 of inlet tube 14 intercommunication and clean.
As shown in fig. 2, the first sliding rod 5 and the second sliding rod 6 are both disposed to incline upwards towards the direction close to the cleaning mechanism 1, and the positioning ball 9 and the sliding block 7 are disposed at the lowest ends of the second sliding rod 6 and the first sliding rod 5, respectively, without external force.
When the guardrail cleaning device is used, when the guardrail is cleaned by the cleaning vehicle, the cleaning vehicle can drive the shell 2 to move forwards, the spray head 13 can spray water to clean the guardrail, when the spray head 13 is opposite to the guardrail and continuously moves forwards, the guardrail and the magnetic strip 12 can attract each other due to the fact that the guardrail is made of ferrous materials, the guardrail can generate backward magnetic attraction force on the magnetic strip 12, the backward magnetic attraction force can pull the magnetic strip 12 to move backwards, and therefore the spray head 13 can enable the sliding block 7 to slide upwards along the first sliding rod 5 under the action of the magnetic strip 12.
The guardrail will produce a backward magnetic attraction to location ball 9, and location ball 9 will be gradually upwards slide along second slide bar 6 under the effect of backward magnetic attraction for shower nozzle 13 is just to the guardrail railing all the time for the guardrail railing at certain time, and shower nozzle 13 upwards moves gradually, and then realizes carrying out the cleanness in upper and lower position to the guardrail railing, and then can avoid the guardrail to appear effectively because shower nozzle 13 is fixed and produce the dead angle position that can't be washed.
After the cleaning vehicle moves for a sufficient distance, the sliding block 7 moves to the topmost end of the first sliding rod 5, when the cleaning vehicle continues to move forward, the distance between the magnetic strip 12 and the railing is gradually increased, the magnetic attraction of the railing to the magnetic strip 12 is gradually reduced, so that the sliding block 7 can drive the spray head 13 to move downward under the action of the sliding block 7, if the distance between the two railings of the guardrail is small, the railing in front of the spray head 13 can generate the magnetic attraction to the spray head 13, the structures such as the spray head 13 and the sliding block 7 can slide downward along the first sliding rod 5 more quickly, and the spray head 13 can be closer to the railing in front of the spray head 13 more quickly until the steps are repeated.
Example 2
As shown in fig. 6 to 7, the present embodiment is different from embodiment 1 in that: the first sliding rod 5 and the second sliding rod 6 are both arranged downwards and incline towards the cleaning mechanism 1, a spring 16 is axially sleeved on the first sliding rod 5, two ends of the spring 16 are respectively and fixedly connected with the fixing strip 3 and the sliding block 7, the spring 16 is arranged below the sliding block 7, and the sliding block 7 and the positioning ball 9 are respectively arranged at the topmost ends of the first sliding rod 5 and the second sliding rod 6 under the action of no external force.
When shower nozzle 13 forward motion, shower nozzle 13 will spray water and clean the guardrail, when shower nozzle 13 just continues to move forward behind the guardrail railing, because the guardrail is ferrous material, guardrail and magnetic stripe 12 will inter attraction, the guardrail will produce a backward magnetic attraction to magnetic stripe 12, backward magnetic attraction will stimulate magnetic stripe 12 and move backward, shower nozzle 13 will make sliding block 7 slide down along first slide bar 5 under magnetic stripe 12's effect, spring 16 is compressed, make shower nozzle 13 just to the guardrail railing throughout for the guardrail railing at certain time, and shower nozzle 13 moves down gradually, and then realize shower nozzle 13 from last to cleaning down to the guardrail railing.
And then can avoid the downward flow of guardrail water-feeding in embodiment 1, shower nozzle 13 upwards spun water gradually, and then lead to shower nozzle 13 spun water and guardrail water phase conflict that flows downwards for shower nozzle 13 spun water reduces to the impact force of guardrail, and then makes shower nozzle 13 spun water take place to the relatively poor condition such as the cleaning performance of guardrail, and then can ensure that shower nozzle 13 is better to the clean effect of guardrail, makes better to the clean effect of railing.
When the shell 2 continues to move forward, the cleaning vehicle continues to move forward after the spray head 13 and the sliding block 7 move to the lowest position, the distance between the magnetic strip 12 and the guardrail gradually increases, the magnetism 1 of the guardrail on the magnetic strip 12 gradually decreases, and the sliding block 7 gradually moves upwards under the action of the spring 16 until the sliding block 7 is located at the topmost end of the first sliding rod 5 and then continues to approach the guardrail in front, and the steps are repeated.
Example 3
As shown in fig. 8 to 9, the present embodiment is different from embodiment 2 in that: the connecting block 11 is horizontally and rotatably connected with the sliding block 7.
When the sliding block 7 moves towards the rail, the magnetic strip 12 is attracted by the rail, so that the magnetic strip 12 drives the connecting block 11 and the sliding block 7 to horizontally rotate and move, the spray head 13 inclines towards the rail, and water sprayed by the spray head 13 can be sprayed to the rail; when the sliding block 7 moves away from the rail, the magnetic stripe 12 will drive the connecting block 11 to horizontally rotate backwards, so that the spraying head 13 tilts backwards towards the rail.
And then ensure that whole in-process shower nozzle 13 is towards the railing all the time, and then ensure that shower nozzle 13 spun water can spout on the railing all the time, and then the utilization ratio of improvement water that can be great, and then can make the railing have better clean effect through a small amount of water, and then realize the purpose of using water wisely, and can also wash well to the railing side at shower nozzle 13 pivoted in-process, avoid the relatively poor condition such as of railing side cleaning performance to take place.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. The guardrail water spraying mechanism with good cleaning and wetting effects comprises a shell (2) connected with a cleaning mechanism (1), and is characterized in that one side of the shell (2) is fixedly connected with two vertically arranged fixing strips (3), a plurality of sliding rod groups (4) distributed at equal intervals are fixedly connected between the fixing strips (3), each sliding rod group (4) consists of two first sliding rods (5) and two second sliding rods (6) which are arranged in parallel, each first sliding rod (5) is positioned below each second sliding rod (6), each first sliding rod (5) is slidably connected with a sliding block (7), each sliding block (7) is provided with a water spraying mechanism (8), each second sliding rod (6) is slidably connected with a magnetic positioning ball (9), the bottom end of each positioning ball (9) is fixedly connected with a connecting plate (10) fixedly connected with the bottom end and the corresponding sliding block (7), water spray mechanism (8) comprise connecting block (11), magnetic stripe (12), shower nozzle (13) and inlet tube (14), connecting block (11) are connected with sliding block (7), magnetic stripe (12) are equipped with two and respectively fixed connection in connecting block (11) both sides, one side fixed connection of sliding block (7) is kept away from with connecting block (11) in shower nozzle (13), inlet tube (14) through connection piece (11) and with shower nozzle (13) intercommunication setting, inlet tube (14) top is run through location ball (9) and with location ball (9) fixed connection.
2. The guardrail water spraying mechanism with good cleaning and wetting effects as claimed in claim 1, wherein the connecting block (11) is fixedly connected with the sliding block (7).
3. The guardrail water spraying mechanism with good cleaning and wetting effects as claimed in claim 1, wherein the connecting block (11) is horizontally and rotatably connected with the sliding block (7).
4. The guardrail water spraying mechanism with good cleaning and moistening effects as claimed in claim 1, wherein a water supply pipe (15) is disposed in the housing (2), and a top end of the water inlet pipe (14) penetrates through a sidewall of the housing (2) and extends into the housing (2) to communicate with the water supply pipe (15).
5. The guardrail water spraying mechanism with good cleaning and wetting effects as claimed in claim 1, wherein the first sliding rod (5) and the second sliding rod (6) are both inclined upwards towards the direction close to the cleaning mechanism (1), and the positioning ball (9) and the sliding block (7) are respectively arranged at the lowest ends of the second sliding rod (6) and the first sliding rod (5) without external force.
6. The guardrail water spraying mechanism with good cleaning and wetting effects as claimed in claim 1, wherein the first sliding rod (5) and the second sliding rod (6) are both arranged to be inclined downwards towards the cleaning mechanism (1), a spring (16) is axially sleeved on the first sliding rod (5), two ends of the spring (16) are respectively and fixedly connected with the fixed strip (3) and the sliding block (7), the spring (16) is arranged below the sliding block (7), and the sliding block (7) and the positioning ball (9) are respectively arranged at the topmost ends of the first sliding rod (5) and the second sliding rod (6) under the action of no external force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010675918.1A CN111794154B (en) | 2020-07-14 | 2020-07-14 | Guardrail water spraying mechanism with good cleaning and wetting effects and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010675918.1A CN111794154B (en) | 2020-07-14 | 2020-07-14 | Guardrail water spraying mechanism with good cleaning and wetting effects and using method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111794154A CN111794154A (en) | 2020-10-20 |
| CN111794154B true CN111794154B (en) | 2022-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010675918.1A Active CN111794154B (en) | 2020-07-14 | 2020-07-14 | Guardrail water spraying mechanism with good cleaning and wetting effects and using method thereof |
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| CN (1) | CN111794154B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101094905B1 (en) * | 2009-02-27 | 2011-12-15 | (주)건우기술 | Water jet attachment apparatus provided with tilting function for structure surface treatment |
| CN104762908B (en) * | 2015-03-25 | 2016-06-01 | 浙江万瑞市政工程有限公司 | The municipal Bridge guardrail washing unit of left and right movement and using method thereof |
| CN205314032U (en) * | 2016-01-07 | 2016-06-15 | 张健 | Highway W board belt cleaning device |
| CN108824282A (en) * | 2017-03-29 | 2018-11-16 | 充红娣 | Road guard cleaning vehicle |
| US10828657B2 (en) * | 2018-03-07 | 2020-11-10 | Nlb Corp. | Traversing front arm |
| CN208701582U (en) * | 2018-09-05 | 2019-04-05 | 广洁环境科技有限公司 | A kind of watering jet pipe adjustment mechanism of sweeper |
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2020
- 2020-07-14 CN CN202010675918.1A patent/CN111794154B/en active Active
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