[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

CN111734097A - A concrete waste material clearing equipment for building surface - Google Patents

A concrete waste material clearing equipment for building surface Download PDF

Info

Publication number
CN111734097A
CN111734097A CN202010547550.0A CN202010547550A CN111734097A CN 111734097 A CN111734097 A CN 111734097A CN 202010547550 A CN202010547550 A CN 202010547550A CN 111734097 A CN111734097 A CN 111734097A
Authority
CN
China
Prior art keywords
concrete waste
groove
hinged rod
sliding
plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202010547550.0A
Other languages
Chinese (zh)
Other versions
CN111734097B (en
Inventor
云虹
刘斌
刘春雨
刘庆柏
张赫
曹景国
武良良
李丹
李想
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Heilongjiang Construction and Installation Group Co Ltd
Original Assignee
Heilongjiang Construction and Installation Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Heilongjiang Construction and Installation Group Co Ltd filed Critical Heilongjiang Construction and Installation Group Co Ltd
Priority to CN202010547550.0A priority Critical patent/CN111734097B/en
Publication of CN111734097A publication Critical patent/CN111734097A/en
Application granted granted Critical
Publication of CN111734097B publication Critical patent/CN111734097B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F21/00Implements for finishing work on buildings
    • E04F21/02Implements for finishing work on buildings for applying plasticised masses to surfaces, e.g. plastering walls
    • E04F21/16Implements for after-treatment of plaster or the like before it has hardened or dried, e.g. smoothing-tools, profile trowels
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F21/00Implements for finishing work on buildings
    • E04F21/20Implements for finishing work on buildings for laying flooring
    • E04F21/24Implements for finishing work on buildings for laying flooring of masses made in situ, e.g. smoothing tools
    • E04F21/241Elongated smoothing blades or plates, e.g. screed apparatus

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Cleaning In General (AREA)

Abstract

The invention discloses a concrete waste removing device for building surfaces, which comprises a device body and an I-shaped linear slide rail, wherein two parallel and staggered scraping plates are arranged above the device body, the scraping plates positioned on the lower side are fixed at the upper end of the device body, the same sides of the two scraping plates are fixedly connected with side plates, a distance adjusting mechanism is arranged between the two side plates, a discharging groove, a material storage groove and a water storage groove are sequentially arranged in the device body from top to bottom, the inner bottom surface of the discharging groove is an inclined surface facing the material storage groove, the inner bottom wall of the discharging groove is provided with a through hole communicated with the material storage groove, a water suction pump is fixedly arranged on one side of the device body, and the input end of the water suction pump is communicated with the water storage groove through a pipeline. Has the advantages that: the invention can use the scraper with adjustable longitudinal length to trowel the uneven building surface, and collect and recycle the removed concrete, thereby saving resources.

Description

A concrete waste material clearing equipment for building surface
Technical Field
The invention relates to the technical field of construction auxiliary equipment, in particular to a concrete waste removing device for a building surface.
Background
In the building industry, need paint the concrete to building surface, nevertheless because the non-standardization of paining leads to building surface's concrete to demonstrate unevenness's state, need use the scraper blade to trowel in order to make the surface more level, and the concrete waste material of scraping drips on subaerial, if not in time handle, can also cause ground concrete to solidify when the concrete waste material is extravagant, and post processing is very troublesome.
To solve the above problems, we propose a concrete waste removal apparatus for building surfaces.
Disclosure of Invention
The present invention is directed to solving the problems of the background art, and provides a concrete waste removing apparatus for building surfaces.
In order to achieve the purpose, the invention adopts the following technical scheme: a concrete waste removing device for building surfaces comprises a device body and an I-shaped linear slide rail, wherein two parallel and staggered scrapers are arranged above the device body, the scrapers positioned on the lower side are fixed at the upper end of the device body, the same sides of the two scrapers are fixedly connected with side plates, a distance adjusting mechanism is arranged between the two side plates, a discharging groove, a storage groove and a water storage groove are sequentially arranged in the device body from top to bottom, the inner bottom surface of the discharging groove is an inclined surface facing the storage groove, an opening communicated with the storage groove is formed in the inner bottom wall of the discharging groove, a water suction pump is fixedly arranged on one side of the device body, the input end of the water suction pump is communicated with the storage groove through a pipeline, the output end of the water suction pump is connected with a water outlet pipe, one end, far away from the water suction pump, of the water outlet pipe penetrates through the device, the utility model discloses a device for the rolling of a linear sliding rail, including equipment body, linear sliding rail, bottom plate, gyro wheel groove, transmission groove, lead screw, motor, linear sliding rail, slide plate, rotor, push pedal, the both sides of linear sliding rail are equipped with the gyro wheel groove, the lower extreme of equipment body is about two bottom plates of linear sliding rail symmetry fixedly connected with, one side rotation that the bottom plate is close to the gyro wheel groove is installed the gyro wheel, and gyro wheel groove roll connection, the transmission groove has been seted up to linear sliding rail's upper end, the both sides inner wall of transmission groove rotates and is connected with the lead screw, one side fixed mounting of linear sliding rail has the motor, the output of motor run through linear sliding rail and with the one end fixed connection of lead screw.
In the above concrete waste removing apparatus for building surface, a material guide plate is fixedly connected to the upper end of the apparatus body and at the position of the scraper.
In foretell concrete waste material clearing equipment for building surface, roll adjustment mechanism is including setting up first hinge bar and the second hinge bar between two curb plates, and first hinge bar equals with second hinge bar length, first hinge bar is articulated with the middle part of second hinge bar, first hinge bar rotates with two curb plates respectively with the same side tip of second hinge bar and is connected, first hinge bar all rotates with the opposite side tip of second hinge bar and is connected with the slider, two the spout with slider sliding connection is all seted up to the relative one side of curb plate, one of them one side inner wall of spout inlays and is equipped with electric telescopic handle, and electric telescopic handle's flexible end and slider fixed connection.
In the above concrete waste removing apparatus for building surfaces, the slide block and the chute are both dovetail-shaped.
In foretell concrete waste material clearing equipment for building surface, hold silo's outer wall lower extreme intercommunication and have the blowing pipe, and install the ooff valve on the blowing pipe, the moisturizing mouth has been seted up to the outer wall upper end of catch basin.
In the concrete waste removing device for the building surface, the side surfaces of the sliding plate and the transmission groove are square.
In the above concrete waste removing apparatus for building surfaces, the thickness of the push plate is smaller than the distance from the screw rod to the upper end surface of the linear slide rail.
Compared with the prior art, this a concrete waste material clearing equipment for building surface's advantage lies in:
1. the total length of the two scraping plates in the longitudinal direction can be adjusted according to the width of the building surface, so that the two scraping plates can be completely screeded on the building surface, specifically, one sliding block can be driven by the electric telescopic rod to slide in the sliding groove, in the sliding process, the other scraping plate is pushed by the first hinged rod and the second hinged rod which are hinged with each other, and the sum of the distance between the two scraping plates and the length of the two scraping plates in the longitudinal direction is increased or reduced;
2. the motor drives the screw rod to rotate, and the push plate pushes the equipment body to move linearly along the direction of the linear slide rail under the condition that the sliding plate is limited by the transmission groove, so that the whole building surface is smoothed;
3. the concrete waste material of cleaing away can fall to the feed chute under self action of gravity in, the suction pump passes through the pipeline and takes the water in the catch basin out to through the outlet pipe with water through sprinkler bead atomizing blowout, add water to the concrete and dissolve, reduce its viscosity, flow into to holding the inslot through the opening, after cleaing away the end, concrete and the mixture accessible blowing pipe of water are emitted and recycle, resources are saved, the accessible moisturizing mouth adds the water to the catch basin simultaneously.
In conclusion, the invention can use the scraper with adjustable longitudinal length to smooth the uneven building surface, and collect and recycle the removed concrete, thereby saving resources.
Drawings
FIG. 1 is a perspective view showing the construction of a front surface of a concrete waste removing apparatus for a construction surface according to the present invention;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;
FIG. 3 is an enlarged schematic view of the structure at B in FIG. 1;
FIG. 4 is a schematic side view of a portion of a concrete waste removal apparatus for use on a building surface according to the present invention;
fig. 5 is a schematic structural view of a front surface of a concrete waste removing apparatus for a building surface according to the present invention.
In the figure: the device comprises a device body 1, a scraping plate 2, a side plate 3, a first hinge rod 4, a second hinge rod 5, a sliding chute 6, a sliding block 7, an electric telescopic rod 8, a material guide plate 9, a material discharging chute 10, a material storage chute 11, a water storage chute 12, a water suction pump 13, a water outlet pipe 14, a water spraying head 15, a linear sliding rail 16, a bottom plate 17, rollers 18, a roller chute 19, a transmission chute 20, a screw rod 21, a sliding plate 22, a push plate 23, a rotator 24, a coil spring 25 and a motor 26.
Detailed Description
The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.
Examples
Referring to fig. 1-5, a concrete waste removing device for building surface, which comprises a device body 1 and an i-shaped linear slide rail 16, wherein two parallel and staggered scrapers 2 are arranged above the device body 1, the scraper 2 located at the lower side is fixed at the upper end of the device body 1, the same side of each of the two scrapers 2 is fixedly connected with a side plate 3, a distance adjusting mechanism is arranged between the two side plates 3, a feeding trough 10, a storage trough 11 and a water storage trough 12 are sequentially arranged in the device body 1 from top to bottom, the inner bottom surface of the feeding trough 10 is an inclined surface facing the storage trough 11, so as to facilitate feeding, the inner bottom wall of the feeding trough 10 is provided with a through hole communicated with the storage trough 11, a water suction pump 13 is fixedly arranged at one side of the device body 1, the input end of the water suction pump 13 is communicated with the storage trough 12 through a pipeline, the output end of the water suction pump 13 is, A water spray head 15 is connected with the lower trough 10, roller grooves 19 are arranged at two sides of the linear slide rail 16, two bottom plates 17 are symmetrically and fixedly connected with the lower end of the equipment body 1 around the linear slide rail 16, a roller 18 is rotatably arranged at one side of the bottom plate 17 close to the roller grooves 19, the roller 18 is connected with the roller groove 19 in a rolling way, the upper end of the linear slide rail 16 is provided with a transmission groove 20, the inner walls of the two sides of the transmission groove 20 are connected with a screw rod 21 in a rotating way, one side of the linear slide rail 16 is fixedly provided with a motor 26, the output end of the motor 26 penetrates through the linear slide rail 16 and is fixedly connected with one end of the screw rod 21, the screw rod 21 is sheathed with a sliding plate 22 in a threaded way, the upper end of the sliding plate 22 is connected with a push plate 23 in a rotating way through a rotator 24, the outer side, and the inner end and the outer end of the coil spring 25 are respectively fixedly connected with the rotator 24 and the push plate 23, and the coil spring 25 enables the push plate 23 to automatically reset.
The upper end of the equipment body 1 is fixedly connected with a material guide plate 9 at the scraper 2, so that the concrete waste material can fall into the blanking groove 10 through the material guide plate 9.
In particular, the distance-adjusting mechanism comprises a first articulated rod 4 and a second articulated rod 5 arranged between the two side plates 3, the lengths of the first hinged rod 4 and the second hinged rod 5 are equal, the first hinged rod 4 is hinged with the middle part of the second hinged rod 5, the same side ends of the first hinged rod 4 and the second hinged rod 5 are respectively rotatably connected with the two side plates 3, the other side ends of the first hinged rod 4 and the second hinged rod 5 are respectively rotatably connected with a sliding block 7, one opposite side of each of the two side plates 3 is provided with a sliding chute 6 which is slidably connected with the sliding block 7, one side inner wall of one of the chutes 6 is embedded with an electric telescopic rod 8, the telescopic end of the electric telescopic rod 8 is fixedly connected with the slide block 7, by changing the position of the slider 7, the angle between the first hinge lever 4 and the second hinge lever 5 is reduced, and the sum of the lengths of the two squeegees 2 and the two squeegees 2 in the longitudinal direction is changed.
The sliding block 7 and the sliding groove 6 are both in a dovetail shape, and the sliding block 7 and the sliding groove 6 slide in a limiting mode.
Hold the outer wall lower extreme intercommunication of silo 11 and have the blowing pipe, and install the ooff valve on the blowing pipe, the moisturizing mouth has been seted up to the outer wall upper end of catch basin 12, conveniently through the blowing pipe blowing, through moisturizing mouth make-up water.
The side surfaces of the sliding plate 22 and the transmission groove 20 are square, so that the sliding plate 22 is limited and prevented from rotating along with the rotation of the screw rod 21.
The thickness of the push plate 23 is smaller than the distance between the screw rod 21 and the upper end surface of the linear slide rail 16. After the push plate 23 is bent, the height of the push plate is lower than the upper end surface of the linear slide rail 16, so that the normal pushing of the equipment body 1 is prevented from being influenced.
When the invention is used, the total length of the two scraping plates 2 in the longitudinal direction can be adjusted according to the width of a building surface, so that the two scraping plates 2 can be completely leveled to the building surface, specifically, one sliding block 7 can be driven to slide in the sliding chute 6 through the electric telescopic rod 8, in the sliding process, the other scraping plate 2 is pushed through the first hinged rod 4 and the second hinged rod 5 which are hinged with each other, and the sum of the distance between the two scraping plates 2 and the length of the two scraping plates 2 in the longitudinal direction is increased or decreased, so that the adjustment is realized;
the push plate 23 is bent along the rotation direction of the coil spring 25, so that the position of the push plate 23 is lower than the upper end surface of the linear slide rail 16, the rollers 18 at the lower end of the equipment body 1 are correspondingly pushed into the roller grooves 19, after the position of the push plate 23 is pushed, the push plate 23 is released, the push plate 23 can be bent to be in a vertical state again under the elastic force recovered by the coil spring 25, the motor 26 drives the screw rod 21 to rotate, and under the condition that the sliding plate 22 is limited by the transmission groove 20, the push plate 23 pushes the equipment body 1 to linearly move along the linear slide rail 16, so that the whole building surface is leveled;
in the above-mentioned in-process, the concrete waste material of cleaing away can fall to the feed chute 10 in self action of gravity, the water pump 13 is taken the water in the catch basin 12 out through the pipeline, and pass through the 15 atomizing blowout of sprinkler bead through outlet pipe 14 with water, add water to the concrete and dissolve, reduce its viscosity, flow into to the catch basin 11 in through the opening, after cleaing away the end, concrete and the mixture accessible blowing pipe of water are emitted and recycle, resources are saved, the accessible moisturizing mouth adds the water in to the catch basin 12 simultaneously.
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 (7)

1. The utility model provides a concrete waste material clearing equipment for building surface, includes equipment body (1) and the linear slide rail (16) that is the I shape, its characterized in that, the top of equipment body (1) is equipped with two parallel crisscross scraper blades (2) that set up, is located the downside scraper blade (2) are fixed in the upper end of equipment body (1), two equal fixedly connected with curb plate (3) in the same side of scraper blade (2), are equipped with the roll adjustment mechanism between two curb plates (3), from last silo (10) and hold silo (11), catch basin (12) down seted up in proper order down in equipment body (1), the interior bottom surface of silo (10) is the inclined plane towards holding silo (11) down, the interior diapire of silo (10) is seted up the opening that communicates with holding silo (11) down, one side fixed mounting of equipment body (1) has suction pump (13), the input end of suction pump (13) passes through pipeline and catch basin (12) intercommunication, the output of suction pump (13) is connected with outlet pipe (14), the one end that suction pump (13) were kept away from in outlet pipe (14) runs through equipment body (1), extends to in lower silo (10) and is connected with sprinkler bead (15), the both sides of linear slide rail (16) are equipped with gyro wheel groove (19), the lower extreme of equipment body (1) is about two bottom plates (17) of linear slide rail (16) symmetry fixedly connected with, bottom plate (17) are close to one side rotation of gyro wheel groove (19) and are installed gyro wheel (18), and gyro wheel (18) and gyro wheel groove (19) roll connection, driving groove (20) have been seted up to the upper end of linear slide rail (16), the both sides inner wall rotation of driving groove (20) is connected with lead screw (21), one side fixed mounting of linear slide rail (16) has motor (26), the output end of the motor (26) penetrates through the linear sliding rail (16) and is fixedly connected with one end of the screw rod (21), the screw rod (21) is sleeved with the sliding plate (22) in a threaded mode, the upper end of the sliding plate (22) is rotatably connected with the push plate (23) through the rotator (24), the outer side of the rotator (24) is movably sleeved with the coil spring (25), and the inner end and the outer end of the coil spring (25) are fixedly connected with the rotator (24) and the push plate (23) respectively.
2. The concrete waste removal apparatus for building surfaces as claimed in claim 1, wherein a material guide plate (9) is fixedly connected to the upper end of the apparatus body (1) at the scraper (2).
3. The concrete waste removing equipment for building surfaces is characterized in that the distance adjusting mechanism comprises a first hinged rod (4) and a second hinged rod (5) which are arranged between two side plates (3), the lengths of the first hinged rod (4) and the second hinged rod (5) are equal, the first hinged rod (4) is hinged with the middle part of the second hinged rod (5), the same side ends of the first hinged rod (4) and the second hinged rod (5) are respectively and rotatably connected with the two side plates (3), the other side ends of the first hinged rod (4) and the second hinged rod (5) are respectively and rotatably connected with a sliding block (7), the opposite sides of the two side plates (3) are respectively provided with a sliding groove (6) which is in sliding connection with the sliding block (7), wherein the inner wall of one side of one sliding groove (6) is embedded with an electric telescopic rod (8), and the telescopic end of the electric telescopic rod (8) is fixedly connected with the sliding block (7).
4. A concrete waste removal apparatus for building surfaces according to claim 3, wherein the slides (7) and chutes (6) are dovetail shaped.
5. The concrete waste removing equipment for building surfaces as claimed in claim 1, wherein the lower end of the outer wall of the storage tank (11) is communicated with a discharging pipe, the discharging pipe is provided with a switch valve, and the upper end of the outer wall of the storage tank (12) is provided with a water replenishing port.
6. An apparatus for removing concrete waste from building surfaces according to claim 1, characterised in that the sides of the skid plate (22) and the trough (20) are square.
7. A concrete waste removal apparatus for building surfaces according to claim 1, wherein the push plate (23) has a thickness less than the distance of the screw (21) to the upper end of the linear slide (16).
CN202010547550.0A 2020-06-16 2020-06-16 A concrete waste material clearing equipment for building surface Active CN111734097B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010547550.0A CN111734097B (en) 2020-06-16 2020-06-16 A concrete waste material clearing equipment for building surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010547550.0A CN111734097B (en) 2020-06-16 2020-06-16 A concrete waste material clearing equipment for building surface

Publications (2)

Publication Number Publication Date
CN111734097A true CN111734097A (en) 2020-10-02
CN111734097B CN111734097B (en) 2021-06-22

Family

ID=72649352

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010547550.0A Active CN111734097B (en) 2020-06-16 2020-06-16 A concrete waste material clearing equipment for building surface

Country Status (1)

Country Link
CN (1) CN111734097B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117696511A (en) * 2024-02-06 2024-03-15 洛阳市洛龙区河渠事务中心 Underwater sewage disposal head of rubber dam and sewage disposal equipment with same

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050100386A1 (en) * 2003-09-12 2005-05-12 Murray Scott A. Methods and apparatus for drywall tools
CN201241461Y (en) * 2008-06-27 2009-05-20 张继清 Rotary type automatic wall plastering machine
CN105822047A (en) * 2016-05-20 2016-08-03 陈少坤 Manually-operated ceiling putty powder applicator
CN107939019A (en) * 2017-12-23 2018-04-20 季元吉 A kind of construction wall surface scraping device
CN208482992U (en) * 2018-06-01 2019-02-12 宁夏西北雨王防水材料有限公司 A kind of polyurethane water-proof paint waste collection device
CN110528835A (en) * 2019-08-24 2019-12-03 郑巧玲 A kind of full-automatic paint filler scraper
CN111042497A (en) * 2020-01-22 2020-04-21 奉剑雄 Building wall mortar strickles off robot

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050100386A1 (en) * 2003-09-12 2005-05-12 Murray Scott A. Methods and apparatus for drywall tools
CN201241461Y (en) * 2008-06-27 2009-05-20 张继清 Rotary type automatic wall plastering machine
CN105822047A (en) * 2016-05-20 2016-08-03 陈少坤 Manually-operated ceiling putty powder applicator
CN107939019A (en) * 2017-12-23 2018-04-20 季元吉 A kind of construction wall surface scraping device
CN208482992U (en) * 2018-06-01 2019-02-12 宁夏西北雨王防水材料有限公司 A kind of polyurethane water-proof paint waste collection device
CN110528835A (en) * 2019-08-24 2019-12-03 郑巧玲 A kind of full-automatic paint filler scraper
CN111042497A (en) * 2020-01-22 2020-04-21 奉剑雄 Building wall mortar strickles off robot

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117696511A (en) * 2024-02-06 2024-03-15 洛阳市洛龙区河渠事务中心 Underwater sewage disposal head of rubber dam and sewage disposal equipment with same
CN117696511B (en) * 2024-02-06 2024-04-19 洛阳市洛龙区河渠事务中心 Underwater sewage disposal head of rubber dam and sewage disposal equipment with same

Also Published As

Publication number Publication date
CN111734097B (en) 2021-06-22

Similar Documents

Publication Publication Date Title
CN112030682B (en) Be applied to reducible labour's of construction laying device
CN109868977A (en) Automatic guniting machine for plastering and napping
CN112196240B (en) Hopper, slurry paving terminal and slurry paving equipment
CN108049607B (en) A kind of ceiling powder of lacquer putty for use on doctor knife coater and its working method
CN111734097B (en) A concrete waste material clearing equipment for building surface
CN112227679A (en) Slurry paving mechanism and slurry paving equipment
CN112252691A (en) Slurry paving terminal and slurry paving equipment
CN112227680B (en) Slurry paving mechanism and slurry paving equipment
CN112252750B (en) Hopper, slurry paving terminal and slurry paving equipment
CN212154023U (en) Non-cured coating facade blade coating construction tool
CN211105189U (en) Cross frame for sponge foaming machine
CN210633844U (en) A mould platform cleaning device for precast concrete component
CN114086743B (en) Novel material spraying equipment is decorated to building side fascia
CN217079573U (en) Caulking gun for decoration ceramic tile
CN205637507U (en) Ceiling putty powder knife coating machine
CN212981520U (en) Conveying belt cleaning device
CN211817728U (en) Convenient to use's outer wall paint whitewash device
CN221219540U (en) Wall plastering device for building construction
CN220539142U (en) Wall spraying device
CN221256209U (en) Quick ash distribution device for filling wall masonry
CN221957130U (en) Plastering device for building decoration
CN112282323A (en) Slurry paving mechanism and slurry paving equipment
CN221733842U (en) Multipurpose combined scraper
CN220080900U (en) Crack filling device for building construction
CN221442162U (en) Wall body masonry device for building engineering construction

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant