CN111501643B - Cleaning equipment with joint pointing clearance structure for bridge construction - Google Patents
Cleaning equipment with joint pointing clearance structure for bridge construction Download PDFInfo
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- CN111501643B CN111501643B CN202010310147.6A CN202010310147A CN111501643B CN 111501643 B CN111501643 B CN 111501643B CN 202010310147 A CN202010310147 A CN 202010310147A CN 111501643 B CN111501643 B CN 111501643B
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- equipment
- cleaning
- spray head
- equipment shell
- bridge construction
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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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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
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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
- E01H1/14—Removing by magnetic effect
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention belongs to the related field of bridge construction, and particularly discloses a bridge construction cleaning device with a pointing cleaning structure, which comprises a device shell and a cleaning mechanism, wherein the device shell is provided with a cleaning mechanism; the bottom surface of the equipment shell is provided with a travelling wheel, and the outer side of the equipment shell is provided with a cleaning mechanism; the cleaning mechanism comprises a first spray head, a second spray head and a fixing plate; the first spray heads are arranged on two side surfaces of the equipment shell, the top of the equipment shell is provided with a water storage tank, the tail part of the first spray head is communicated with a first water outlet arranged on the side surface of the water storage tank through a first pipeline, one side of the water storage tank is provided with a booster pump, a water inlet of the booster pump is communicated with a second water outlet arranged on one side of the water storage tank, and a water outlet of the booster pump is communicated with the second spray head through a second pipeline; the fixed plate is arranged at the bottom end of the middle part of the equipment shell, and a second spray head is arranged on the bottom surface of the fixed plate; the bottom surface of the fixing plate is provided with baffles on two sides of the second spray head, and the baffles are connected with the fixing plate in a sliding manner.
Description
Technical Field
The invention relates to the field related to bridge construction, in particular to a cleaning device with a pointing cleaning structure for bridge construction.
Background
Pointing means filling and filling gaps between two adjacent masonry block materials by using mortar, so that the connection between the upper masonry block material, the lower masonry block material, the left masonry block material, the right masonry block material and the wall body is firmer, wind and rain are prevented from invading the wall body, and the wall surface is clean, neat and beautiful; bridge jointing when long time is used inside can accumulate too much debris and because the clearance untimely, can cause the unable normal work of jointing or even the bridge damaged, some devices that are used for the jointing clearance appear on the market at present, but these devices can only clear up to the jointing bottom surface when the clearance, can't clear up jointing inner wall both sides, lead to the jointing clearance incomplete, and the clearance effect is poor.
Disclosure of Invention
The invention aims to provide a bridge construction cleaning device with a pointing cleaning structure, which is used for solving the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a bridge construction cleaning device with a pointing cleaning structure comprises a device shell and a cleaning mechanism; the bottom surface of the equipment shell is provided with a travelling wheel, and the outer side of the equipment shell is provided with a cleaning mechanism; the cleaning mechanism comprises a first spray head, a second spray head and a fixing plate; the first spray heads are arranged on two side surfaces of the equipment shell, the top of the equipment shell is provided with a water storage tank, the tail part of the first spray head is communicated with a first water outlet arranged on the side surface of the water storage tank through a first pipeline, one side of the water storage tank is provided with a booster pump, a water inlet of the booster pump is communicated with a second water outlet arranged on one side of the water storage tank, and a water outlet of the booster pump is communicated with the second spray head through a second pipeline; the fixed plate is arranged at the bottom end of the middle part of the equipment shell, and a second spray head is arranged on the bottom surface of the fixed plate; the bottom surface of the fixed plate is provided with baffle plates at two sides of the second spray head, and the baffle plates are connected with the fixed plate in a sliding manner;
a telescopic mechanism is arranged between the fixed plate and the bottom end of the equipment body; the telescopic mechanism comprises a servo motor and a push rod; the bottom end of the push rod is fixed at the central position of the surface of the fixed plate, and the top end of the push rod is fixedly connected with the output end of the servo motor; the servo motor is arranged inside the equipment body.
Preferably, strip-shaped openings are formed in the bottom surface of the fixing plate, which is positioned on two sides of the second spray head; the baffle is arranged in the strip-shaped opening, the two sides of the baffle extend outwards to form first sliding grooves, and first sliding blocks are arranged at positions, corresponding to the first sliding grooves, of the strip-shaped opening; magnetic sheets are bonded and fixed on the surfaces of the opposite sides of the two baffles.
Preferably, the first pipeline is fixed on two side surfaces of the equipment shell through fixing pieces; the fixing piece comprises an arc-shaped plate and mounting plates extending from two ends of the arc-shaped plate; the arc-shaped plate is matched with the first pipeline in shape, and the mounting plate is fixedly connected with the equipment shell through bolts.
Preferably, the top end of the second pipeline is arranged inside the equipment shell, and the bottom end of the second pipeline is wound outside the push rod and is communicated with the second spray head through a round hole formed in the bottom end of the push rod.
Preferably, the bottom surface of the fixed plate is provided with a calibration mechanism; the calibration mechanism comprises a monitoring head, an infrared sensor and a display screen; the monitoring head and the infrared sensor are respectively fixed on two sides of the bottom surface of the fixed plate and are electrically connected with the controller; the controller is electrically connected with the display screen, and the display screen is installed in the center of the front face of the equipment body.
Preferably, the two sides of the bottom end of the equipment shell are provided with placing cavities; one side of the equipment shell is connected with a push handle.
Preferably, a second sliding block is arranged on the bottom surface of the servo motor, and a second sliding groove is formed in the corresponding position inside the equipment body; the second sliding groove is of an annular structure, and the second sliding block can slide in the second sliding groove.
Preferably, a first nozzle is arranged in the center of the bottom surface of the second nozzle, a plurality of second nozzles are arranged on two sides of the second nozzle, two sliding plates cover the outer sides of the second nozzles, and the two sliding plates are connected with the second nozzle in a sliding manner; the two sliding plates are connected with each other through an elastic connecting piece.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the baffles are arranged on the bottom surface of the fixed plate and positioned on two sides of the second spray nozzle, the magnetic sheets are bonded on the surfaces of the baffles, and the magnetic sheets can adsorb magnetic impurities and dust splashed when the second spray nozzle cleans a bridge floor pointing seam, so that the dust on the bridge floor is reduced during cleaning, and the disease risk of a user is reduced.
2. The sliding plates are arranged on the two sides of the second spray head, when the fixing plate descends, water flow can only be sprayed out from the first spray nozzles arranged on the bottom surface of the second spray head due to the action of the sliding plates, so that the inside of a pointing seam can be cleaned, and when the second spray head enters the pointing seam, the sliding plates on the two sides ascend, so that the water flow can be sprayed out from the second spray nozzles arranged on the two sides of the second spray head, the two side walls inside the pointing seam can be cleaned, and the pointing seam can be cleaned comprehensively.
Drawings
FIG. 1 is a schematic structural view of the present invention as a whole;
FIG. 2 is a schematic structural view of the bottom surface of the fixing plate according to the present invention;
fig. 3 is a front view of the cleaning mechanism of the present invention.
In the figure: 1. an equipment housing; 2. a cleaning mechanism; 201. a first nozzle; 202. a water storage tank; 203. a first water outlet; 204. a second water outlet; 205. a booster pump; 206. a first conduit; 207. a second conduit; 208. a second nozzle; 209. a fixing plate; 3. a traveling wheel; 4. a baffle plate; 5. a telescoping mechanism; 501. a servo motor; 502. a push rod; 6. a placement chamber; 7. a first slider; 8. a first chute; 9. a magnetic sheet; 10. a fixing member; 11. a calibration mechanism; 111. a monitoring head; 112. an infrared sensor; 113. a display screen; 12. a push handle; 13. a second slider; 14. a second chute; 15. a slide plate; 16. an elastic connecting piece.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1-3, the invention provides a bridge construction cleaning device with a pointing cleaning structure, which comprises a device housing 1 and a cleaning mechanism 2; the bottom surface of the equipment shell 1 is provided with a traveling wheel 3, one side of the equipment shell 1 is connected with a push handle 12, a user pushes the device to move through the push handle 12 and the traveling wheel 3 when the equipment is used, and the outer side of the equipment shell 1 is provided with a cleaning mechanism 2; the cleaning mechanism 2 comprises a first spray head 201, a second spray head 208 and a fixing plate 209; the first spray heads 201 are arranged on two side surfaces of the equipment shell 1, the water storage tank 202 is arranged at the top of the equipment shell 1, the tail of the first spray head 201 is communicated with a first water outlet 203 arranged on the side surface of the water storage tank 202 through a first pipeline 206, water in the water storage tank 202 enters the first spray head 201 from the first water outlet 203 and the first pipeline 206 and is sprayed out from the first spray head 201, so that a user can clean the bridge floor and the railings on two sides in the process of moving the device, and the subsequent cleaning work intensity of the bridge floor is reduced;
a booster pump 205 is arranged on one side of the water storage tank 202, a water inlet of the booster pump 205 is communicated with a second water outlet 204 arranged on one side of the water storage tank 202, a water outlet of the booster pump 205 is communicated with a second spray head 208 through a second pipeline 207, and the booster pump 205 can increase the water flow speed, so that the impact force of water flow sprayed by the second spray head 208 is stronger, and the effect is better when the bridge floor joint is cleaned;
the fixed plate 209 is arranged at the bottom end of the middle part of the equipment shell 1, and the bottom surface of the fixed plate 209 is provided with a second spray nozzle 208; the bottom surface of the fixed plate 209 is provided with baffle plates 4 at two sides of the second spray nozzle 208, two sides of each baffle plate 4 are provided with first sliding chutes 8 in an outward extending manner, the positions of the strip-shaped openings corresponding to the first sliding chutes 8 are provided with first sliding blocks 7, the two baffle plates 4 are in sliding connection with the fixed plate 209 through the matching of the first sliding blocks 7 and the first sliding chutes 8, magnetic sheets 9 are bonded and fixed on the surfaces of the opposite sides of the two baffle plates 4, when the device is used for cleaning a bridge floor crack, the two baffle plates 4 can stand at two sides of the crack, and the magnetic sheets 9 fixed on the surfaces of the opposite sides of the two baffle plates 4 can adsorb magnetic impurities and dust splashed out during crack cleaning;
a telescopic mechanism 5 is arranged between the fixed plate 209 and the bottom end of the equipment body; the telescopic mechanism 5 comprises a servo motor 501 and a push rod 502; the bottom end of the push rod 502 is fixed at the center of the surface of the fixing plate 209, and the top end of the push rod 502 is fixedly connected with the output end of the servo motor 501; the servo motor 501 is installed inside the apparatus body.
Further, the first pipe 206 is fixed on two sides of the device housing 1 through the fixing member 10; the fixing part 10 comprises an arc-shaped plate and mounting plates extending from two ends of the arc-shaped plate; the arc plate is matched with the first pipeline 206 in shape, and the mounting plate is fixedly connected with the equipment shell 1 through bolts.
Further, the top end of the second pipeline 207 is arranged inside the device housing 1, and the bottom end of the second pipeline 207 is wound outside the push rod 502 and is communicated with the second spray head 208 through a round hole arranged at the bottom end of the push rod 502.
Further, the bottom surface of the fixing plate 209 is provided with a calibration mechanism 11; the calibration mechanism 11 comprises a monitoring head 111, an infrared sensor 112 and a display screen 113; the monitoring head 111 and the infrared sensor 112 are respectively fixed on two sides of the bottom surface of the fixing plate 209, and the monitoring head 111 and the infrared sensor 112 are electrically connected with the controller; the controller is electrically connected with the display screen 113, and the display screen 113 is installed in the center of the front face of the equipment body.
Furthermore, two sides of the bottom end of the equipment shell 1 are provided with placing cavities 6; .
Further, a second sliding block 13 is arranged on the bottom surface of the servo motor 501, and a second sliding chute 14 is arranged at a corresponding position inside the equipment body; the second sliding chute 14 is of an annular structure, and the second sliding block 13 can slide in the second sliding chute 14.
When the device is used, the device is pushed by the handle 12 and the travelling wheels 3 to move on the bridge floor, when the device moves, water in the water storage tank 202 enters the first spray head 201 through the first water outlet 203 and the first pipeline 206 and is sprayed out from the first spray head 201, so that a user can clean the bridge floor and the railings on two sides in the process of moving the device, when the device moves to the position of the crack on the bridge floor, the second spray head 208 and the crack are calibrated through the calibration mechanism 11 arranged on the bottom surface of the fixing plate 209, and the calibration mechanism 11 consists of the monitoring head 111, the infrared sensor and the display screen 113; the infrared sensor can detect the distance, so that the position of the bridge floor joint pointing can be detected, the monitoring head 111 can transmit the image information of the bottom to the display screen 113, the display screen 113 is arranged on the side face of the equipment body, a user can conveniently observe the calibration work of the bottom calibration mechanism 11 in real time, after the second spray head 208 is aligned with the bridge floor joint pointing, the servo motor 501 is started, the servo motor 501 drives the push rod 502 to extend out, so that the fixing plate 209 descends, and the second spray head 208 can be embedded into the joint pointing; when the fixed plate 209 descends, the baffle plates 4 on the two sides contact the ground first, and at this time, the fixed plate 209 can continuously descend under the action of the first sliding block 7 and the first sliding groove 8, so that the second spray nozzle 208 can enter the inside of the joint; after the second nozzle 208 is aligned, the booster pump 205 starts to operate, the booster pump 205 pressurizes and accelerates water in the water storage tank 202 and then enters the second nozzle 208 through the second pipeline 207, at this time, because the second nozzles on the two sides of the second nozzle 208 are covered by the sliding plate 15, water flow can only be vertically sprayed out from the first nozzles arranged on the bottom surface of the second nozzle 208, so that the inside of the joint hook is cleaned, in the process that the second nozzle 208 enters the joint hook, the sliding plates 15 on the two sides rise to enable the second nozzles to leak out, at this time, water flow can be sprayed out from the second nozzles to clean the two sides of the inside of the joint hook, so that the joint hook is completely cleaned, and after the second nozzle 208 enters the inside of the joint hook, a user can rotate the equipment body through the second slider 13 and the second sliding groove 14, so that the equipment can move along the joint hook structure.
It is worth noting that: the whole device is controlled by the master control button, and the equipment matched with the control button is common equipment, so that the device belongs to the prior art, and the electrical connection relation and the specific circuit structure of the device are not repeated.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a cleaning equipment is used in bridge construction with joint pointing clearance structure which characterized in that: comprises an equipment shell (1) and a cleaning mechanism (2); the bottom surface of the equipment shell (1) is provided with a travelling wheel (3), and the outer side of the equipment shell (1) is provided with a cleaning mechanism (2); the cleaning mechanism (2) comprises a first spray head (201), a second spray head (208) and a fixing plate (209); the first spray heads (201) are arranged on two side faces of the equipment shell (1), the top of the equipment shell (1) is provided with a water storage tank (202), the tail of the first spray head (201) is communicated with a first water outlet (203) arranged on the side face of the water storage tank (202) through a first pipeline (206), one side of the water storage tank (202) is provided with a booster pump (205), a water inlet of the booster pump (205) is communicated with a second water outlet (204) arranged on one side of the water storage tank (202), and a water outlet of the booster pump (205) is communicated with a second spray head (208) through a second pipeline (207); the fixed plate (209) is arranged at the bottom end of the middle part of the equipment shell (1), and a second spray head (208) is arranged on the bottom surface of the fixed plate (209); baffles (4) are arranged on the bottom surface of the fixing plate (209) and positioned on two sides of the second spray head (208), and the baffles (4) are connected with the fixing plate (209) in a sliding manner;
a first nozzle is arranged in the center of the bottom surface of the second nozzle (208), a plurality of second nozzles are arranged on two sides of the second nozzle (208), two sliding plates (15) cover the outer sides of the second nozzles, and the two sliding plates (15) are connected with the second nozzle (208) in a sliding manner; the two sliding plates (15) are connected with each other through an elastic connecting piece (16);
a telescopic mechanism (5) is arranged between the fixed plate (209) and the bottom end of the equipment body; the telescopic mechanism (5) comprises a servo motor (501) and a push rod (502); the bottom end of the push rod (502) is fixed at the surface center position of the transverse plate fixing plate (209), and the top end of the push rod (502) is fixedly connected with the output end of the servo motor (501); the servo motor (501) is installed inside the equipment body.
2. The cleaning equipment with the pointing cleaning structure for bridge construction according to claim 1, wherein: strip-shaped openings are formed in the bottom surface of the fixing plate (209) and positioned on two sides of the second spray head (208); baffle (4) set up inside the bar opening, baffle (4) both sides are outwards extended and are provided with first spout (8), and bar opening corresponds first spout (8) position department and is provided with first slider (7).
3. The cleaning equipment with the pointing cleaning structure for bridge construction according to claim 2, wherein: magnetic sheets (9) are bonded and fixed on the surfaces of the opposite sides of the two baffles (4).
4. The cleaning equipment with the pointing cleaning structure for bridge construction according to claim 1, wherein: the first pipeline (206) is fixed on two side surfaces of the equipment shell (1) through a fixing piece (10); the fixing piece (10) comprises an arc-shaped plate and mounting plates extending from two ends of the arc-shaped plate; the arc-shaped plate is matched with the first pipeline (206) in shape, and the mounting plate is fixedly connected with the equipment shell (1) through bolts.
5. The cleaning equipment with the pointing cleaning structure for bridge construction according to claim 1, wherein: the top end of the second pipeline (207) is arranged inside the equipment shell (1), and the bottom end of the second pipeline (207) is wound outside the push rod (502) and is communicated with the second spray head (208) through a round hole formed in the bottom end of the push rod (502).
6. The cleaning equipment with the pointing cleaning structure for bridge construction according to claim 1, wherein: the bottom surface of the fixed plate (209) is provided with a calibration mechanism (11); the calibration mechanism (11) comprises a monitoring head (111), an infrared sensor (112) and a display screen (113); the monitoring head (111) and the infrared sensor (112) are respectively fixed on two sides of the bottom surface of the fixing plate (209), and the monitoring head (111) and the infrared sensor (112) are electrically connected with the controller; the controller is electrically connected with the display screen (113), and the display screen (113) is installed in the center of the front face of the equipment body.
7. The cleaning equipment with the pointing cleaning structure for bridge construction according to claim 1, wherein: a placing cavity (6) is formed in two sides of the bottom end of the equipment shell (1); one side of the equipment shell (1) is connected with a push handle (12).
8. The cleaning equipment with the pointing cleaning structure for bridge construction according to claim 1, wherein: a second sliding block (13) is arranged on the bottom surface of the servo motor (501), and a second sliding groove (14) is arranged at a corresponding position in the equipment body; the second sliding groove (14) is of an annular structure, and the second sliding block (13) can slide in the second sliding groove (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010310147.6A CN111501643B (en) | 2020-04-17 | 2020-04-17 | Cleaning equipment with joint pointing clearance structure for bridge construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010310147.6A CN111501643B (en) | 2020-04-17 | 2020-04-17 | Cleaning equipment with joint pointing clearance structure for bridge construction |
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| Publication Number | Publication Date |
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| CN111501643A CN111501643A (en) | 2020-08-07 |
| CN111501643B true CN111501643B (en) | 2021-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010310147.6A Active CN111501643B (en) | 2020-04-17 | 2020-04-17 | Cleaning equipment with joint pointing clearance structure for bridge construction |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111996928A (en) * | 2020-09-03 | 2020-11-27 | 侯小柱 | Bridge crack repairing method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4404230A1 (en) * | 1994-02-10 | 1995-08-17 | Max Steinhart Gmbh Pflaster Un | Method of cleaning joints between pavement flagstones or ground slabs |
| CN104652337A (en) * | 2015-02-12 | 2015-05-27 | 陈园婷 | Bridge gap residue removing device with water spraying device |
| CN108118651A (en) * | 2017-12-31 | 2018-06-05 | 王泽华 | A kind of energy conservation and environmental protection road cleaning device |
| CN109137806A (en) * | 2018-08-22 | 2019-01-04 | 张晶 | A kind of road construction expansion joint cleaning device |
| CN110552280A (en) * | 2019-09-25 | 2019-12-10 | 沙鸿辉 | Cleaning equipment for repairing bridge construction expansion joint with miscellaneous and clear inner joint pointing |
| CN110804983A (en) * | 2019-11-08 | 2020-02-18 | 黄大明 | Bridge expansion joint cleaning device |
-
2020
- 2020-04-17 CN CN202010310147.6A patent/CN111501643B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4404230A1 (en) * | 1994-02-10 | 1995-08-17 | Max Steinhart Gmbh Pflaster Un | Method of cleaning joints between pavement flagstones or ground slabs |
| CN104652337A (en) * | 2015-02-12 | 2015-05-27 | 陈园婷 | Bridge gap residue removing device with water spraying device |
| CN108118651A (en) * | 2017-12-31 | 2018-06-05 | 王泽华 | A kind of energy conservation and environmental protection road cleaning device |
| CN109137806A (en) * | 2018-08-22 | 2019-01-04 | 张晶 | A kind of road construction expansion joint cleaning device |
| CN110552280A (en) * | 2019-09-25 | 2019-12-10 | 沙鸿辉 | Cleaning equipment for repairing bridge construction expansion joint with miscellaneous and clear inner joint pointing |
| CN110804983A (en) * | 2019-11-08 | 2020-02-18 | 黄大明 | Bridge expansion joint cleaning device |
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| CN111501643A (en) | 2020-08-07 |
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