CN216946877U - Hot melting equipment for modified asphalt waterproof coiled material - Google Patents

Hot melting equipment for modified asphalt waterproof coiled material Download PDF

Info

Publication number
CN216946877U
CN216946877U CN202220571772.0U CN202220571772U CN216946877U CN 216946877 U CN216946877 U CN 216946877U CN 202220571772 U CN202220571772 U CN 202220571772U CN 216946877 U CN216946877 U CN 216946877U
Authority
CN
China
Prior art keywords
hot melting
oil
oil tank
pipe
modified asphalt
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.)
Active
Application number
CN202220571772.0U
Other languages
Chinese (zh)
Inventor
史义江
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.)
Liaoning Sushang Decoration Technology Co ltd
Original Assignee
Liaoning Sushang Decoration Technology 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 Liaoning Sushang Decoration Technology Co ltd filed Critical Liaoning Sushang Decoration Technology Co ltd
Priority to CN202220571772.0U priority Critical patent/CN216946877U/en
Application granted granted Critical
Publication of CN216946877U publication Critical patent/CN216946877U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/62Plastics recycling; Rubber recycling

Landscapes

  • Road Paving Machines (AREA)

Abstract

The utility model discloses hot melting equipment for a modified asphalt waterproof coiled material, which belongs to the technical field of waterproof coiled materials and comprises a hot melting cylinder, wherein a shunting cover is arranged at the top end of the hot melting cylinder, equal-angle anti-skidding support legs are arranged at the bottom end of the hot melting cylinder, a middle oil tank is arranged outside the hot melting cylinder, a heating cavity is formed between the inner wall and the outer wall of the hot melting cylinder, and an oil inlet pipe is fixedly connected with one side of the bottom end of the heating cavity and the bottom end of the middle oil tank. According to the utility model, the driving motor works, the second shovel blade, the stirring frame and the first shovel blade respectively stir the upper middle section and the lower section in the hot melting cylinder, so that the effect of omnibearing stirring and uniform mixing is achieved, flowing heat conduction oil is filled in the heating cavity to enable the interior of the hot melting cylinder to be uniformly heated, the outer side of the middle oil tank is provided with the heat insulation cover, and the heat emitted by the middle oil tank is respectively discharged to the top end of the raw material and the middle of the raw material through the diversion cover and the plurality of discharge pipes, so that the raw material is uniformly heated.

Description

Hot melting equipment for modified asphalt waterproof coiled material
Technical Field
The utility model relates to the technical field of waterproof rolls, in particular to hot melting equipment for a modified asphalt waterproof roll.
Background
The waterproof coiled material is a flexible building material product which can be curled into a roll shape and is mainly used for building walls, roofs, tunnels, roads, refuse landfills and the like, has the function of resisting external rainwater and underground water leakage, is used as a leakage-free connection between an engineering foundation and a building, is a waterproof first barrier of the whole engineering, and plays a vital role in the whole engineering; the waterproof roll mainly comprises an asphalt waterproof roll and a polymer waterproof roll, wherein the asphalt waterproof roll is a roll material made of asphalt materials, padding materials, surface spread anti-sticking materials and the like and is commonly used for a plaster type waterproof layer.
Because of inherent defects of low softening point, high penetration degree, low-temperature brittleness and the like of the asphalt, when the asphalt waterproof coiled material is used as a waterproof material, the application range is limited, after other substances are added into the asphalt for modification, the performances listed above are greatly improved, the weather resistance, the temperature sensitivity (high-temperature characteristic and low-temperature flexibility) and the adaptability to substrate cracking are obviously improved, the service life of the modified asphalt waterproof coiled material is greatly prolonged, the application range is expanded, but the existing hot melting equipment for the modified asphalt waterproof coiled material has the problem of production efficiency reduction caused by uneven heating.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects in the prior art, and provides hot melting equipment for a modified asphalt waterproof coiled material.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a hot melt equipment for modified asphalt waterproofing membrane, includes hot melt section of thick bamboo, hot melt section of thick bamboo top is provided with the reposition of redundant personnel lid, and hot melt section of thick bamboo bottom is provided with the anti-skidding landing leg of angle such as, and the hot melt section of thick bamboo outside is provided with middle oil tank, the heating chamber has been seted up between the inside and outside wall of hot melt section of thick bamboo, and heating chamber bottom one side and middle oil tank bottom fixedly connected with advance oil pipe, heating chamber top one side and middle oil tank top fixedly connected with oil extraction pipe, hot melt section of thick bamboo bottom fixed mounting has driving motor, and driving motor output fixedly connected with changes the roller, the inside fixed mounting of middle oil tank has the electrothermal tube, and is provided with the heat preservation cover outside the middle oil tank, heat preservation cover top and reposition of redundant personnel cover top fixedly connected with hot-blast main, and be provided with even pipe between the roller in the middle of reposition of redundant personnel lid.
Preferably, an oil suction ring pipe is fixedly mounted at the top end of the heating cavity, an outlet end of the oil suction ring pipe is fixedly connected with an inlet end of the oil discharge pipe, a plurality of equiangular branch pipes are fixedly mounted at the bottom end of the oil suction ring pipe, the lengths of some branch pipes are reduced in an equidifferent mode, and the lengths of the other branch pipes are the same.
Preferably, be hollow structure in the middle of changeing the roller, and change roller circumference outer wall from the top fixed mounting in proper order have a plurality of second shovel pieces, stirring frame and first shovel piece, first shovel piece is L shape, per two the stirring frame is located same horizontal plane, and the stirring frame is the fish shape, fixed mounting has a plurality of equidistant blast pipe in the middle of the stirring frame, and the stirring frame end is the exhaust end.
Preferably, an oil inlet pump is arranged in the middle of the oil inlet pipe, an oil well pump is arranged in the middle of the oil discharge pipe, and a conveying fan is arranged in the middle of the hot air pipe.
Preferably, a dust removal window is formed in the middle of the bottom end of the heat preservation cover, a temperature display is fixedly mounted at the top end of the heat preservation cover, a temperature sensor is fixedly connected to the bottom end of the temperature display, and the temperature sensor penetrates through the top end of the heat preservation cover and extends to the bottom end inside the middle oil tank.
Preferably, the outer wall of the hot melting cylinder, the heat insulation cover, the oil inlet pipe, the oil discharge pipe, the hot air pipe and the flow dividing cover are all made of heat insulation materials, and the inner wall of the hot melting cylinder and the middle oil tank are made of heat conduction materials.
Preferably, the heat transfer end of the heating cavity is fixedly provided with a first spring plate and a second spring plate in an inclined manner, and the inclined directions of the first spring plate and the second spring plate are opposite.
The utility model has the beneficial effects that:
1. according to the hot melting equipment for the modified asphalt waterproof coiled material, the driving motor works, the second shovel blade, the stirring frame and the first shovel blade are used for stirring the upper-section middle section and the lower section in the hot melting cylinder respectively, the effect of all-dimensional stirring and mixing is achieved, flowing heat conduction oil is filled in the heating cavity, so that the temperature in the hot melting cylinder can be uniformly increased, the heat insulation cover is arranged on the outer side of the middle oil tank, and the heat emitted by the middle oil tank is discharged to the top end of the raw material and the middle of the raw material through the diversion cover and the plurality of discharge pipes respectively, so that the raw material is uniformly heated.
2. According to the hot melting equipment for the modified asphalt waterproof coiled material, the oil absorption ring pipe is fixedly arranged at the top end of the heating cavity, so that heat conducting oil in the heating cavity is low in height and even a small amount of heat conducting oil can be used for uniformly and effectively heating and melting a small amount of raw materials, a plurality of branch pipes with equal angles are fixedly arranged at the bottom end of the oil absorption ring pipe, the lengths of one part of the branch pipes are reduced in an equal difference mode, the lengths of the other part of the branch pipes are the same, heat conducting oil with different liquid levels can be conveniently adsorbed, and the adsorption speed is higher when the liquid level of the heat conducting oil is high.
3. According to the hot melting equipment for the modified asphalt waterproof coiled material, the dust removal window is formed in the middle of the bottom end of the heat insulation cover, dust in the external environment is prevented from entering the heat insulation cover and even blocking a hot air pipe, the temperature display is fixedly mounted at the top end of the heat insulation cover, the bottom end of the temperature display is fixedly connected with the temperature sensor, the temperature sensor penetrates through the top end of the heat insulation cover and extends to the bottom end of the interior of the middle oil tank, and temperature change and hot air temperature during heating of heat conduction oil can be conveniently monitored.
4. According to the hot melting equipment for the modified asphalt waterproof coiled material, the first spring plate and the second spring plate are respectively and fixedly installed at the heat transfer ends of the heating cavity in an inclined mode, the hot melting equipment has the effect of slowing down the flow velocity of heat transfer oil, meanwhile, the transmission of heat in the heat transfer oil to the inner wall of the hot melting cylinder is accelerated, the first spring plate and the second spring plate are opposite in inclined direction, and the flow slowing effect is further enhanced.
Drawings
FIG. 1 is a schematic structural diagram of a hot melting device for a modified asphalt waterproof coiled material according to the present invention;
FIG. 2 is a schematic diagram of a side view structure of the distribution of an oil suction ring pipe and branch pipes of a hot melting device for a modified asphalt waterproof roll provided by the utility model;
fig. 3 is a schematic side view of a first shovel blade, a stirring frame and a second shovel blade of the hot melting equipment for the modified asphalt waterproof roll provided by the utility model;
fig. 4 is a schematic structural diagram of a hot melting cylinder of hot melting equipment for a modified asphalt waterproof coiled material, which is provided by embodiment 2 of the present invention.
In the figure: the device comprises 1 anti-skid supporting leg, 2 first shovel blade, 3 driving motors, 4 rotating rods, 5 heating cavities, 6 oil inlet pumps, 7 oil inlet pipes, 8 temperature sensors, 9 dust removal windows, 10 electric heating pipes, 11 middle oil tanks, 12 heat preservation covers, 13 oil discharge pipes, 14 temperature displays, 15 oil well pumps, 16 hot air pipes, 17 shunt covers, 18 oil suction ring pipes, 19 second shovel blades, 20 stirring frames, 21 hot melting barrels, 22 branch pipes, 23 exhaust pipes, 24 first spring plates and 25 second spring plates.
Detailed Description
Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
Example 1
Referring to fig. 1-3, a hot melting device for modified asphalt waterproof coiled materials comprises a hot melting cylinder 21, a shunting cover 17 is arranged at the top end of the hot melting cylinder 21, equal-angle anti-skidding supporting legs 1 are arranged at the bottom end of the hot melting cylinder 21, so that the hot melting cylinder 21 is not easy to shift, a middle oil tank 11 is arranged outside the hot melting cylinder 21, a heating cavity 5 is arranged between the inner wall and the outer wall of the hot melting cylinder 21, an oil inlet pipe 7 is fixedly connected with one side of the bottom end of the heating cavity 5 and the bottom end of the middle oil tank 11, an oil discharge pipe 13 is fixedly connected with one side of the top end of the heating cavity 5 and the top end of the middle oil tank 11, a driving motor 3 is fixedly arranged at the bottom end of the hot melting cylinder 21, the output end of the driving motor 3 is fixedly connected with a roller 4, an electric heating tube 10 is fixedly arranged in the middle oil tank 11, and the outer side of the middle oil tank 11 is provided with a heat preservation cover 12, the top end of the heat preservation cover 12 and the top end of the shunting cover 17 are fixedly connected with a hot air pipe 16, and a connecting pipe is arranged between the middle of the shunting cover 17 and the rotating roller 4.
In the utility model, the top end of a heating cavity 5 is fixedly provided with an oil suction ring pipe 18, the outlet end of the oil suction ring pipe 18 is fixedly connected with the inlet end of an oil discharge pipe 13, the bottom end of the oil suction ring pipe 18 is fixedly provided with a plurality of equiangular branch pipes 22, wherein the lengths of one part of the branch pipes 22 are reduced in an equal difference manner, and the lengths of the other part of the branch pipes 22 are the same, so that heat conduction oil with different liquid levels can be conveniently adsorbed, and the adsorption speed is higher when the liquid level of the heat conduction oil is high;
the middle of the rotating roller 4 is of a hollow structure, hot air is conveniently guided into the mixing rack, the outer wall of the circumference of the rotating roller 4 is sequentially and fixedly provided with a plurality of second shovel blades 19, a stirring rack 20 and first shovel blades 2 from top to bottom, the first shovel blades 2 are L-shaped, the cylinder wall attachments of the hot melting cylinder 21 can be conveniently cleaned, every two stirring racks 20 are positioned on the same horizontal plane, mixing and stirring with different dimensions are carried out, the stirring racks 20 are fish-shaped, a plurality of exhaust pipes 23 which are equidistant are fixedly arranged in the middle of the stirring racks 20, the tail end of each stirring rack 20 is an exhaust end, and airflow can further clean the cylinder wall attachments of the hot melting cylinder 21;
an oil inlet pump 6 is arranged in the middle of the oil inlet pipe 7, an oil well pump 15 is arranged in the middle of the oil discharge pipe 13, and a conveying fan is arranged in the middle of the hot air pipe 16;
a dust removal window 9 is formed in the middle of the bottom end of the heat preservation cover 12, dust in the external environment is prevented from entering the heat preservation cover 12 and even blocking a hot air pipe 16, a temperature display 14 is fixedly mounted at the top end of the heat preservation cover 12, a temperature sensor 8 is fixedly connected to the bottom end of the temperature display 14, the temperature sensor 8 penetrates through the top end of the heat preservation cover 12 and extends to the bottom end of the interior of the middle oil tank 11, and temperature change and hot air temperature during heating of heat conduction oil can be conveniently monitored;
the outer wall of the hot melting cylinder 21, the heat insulation cover 12, the oil inlet pipe 7, the oil discharge pipe 13, the hot air pipe 16 and the shunt cover 17 are all made of heat insulation materials, and the inner wall of the hot melting cylinder 21 and the middle oil tank 11 are made of heat conduction materials, so that the heat insulation and heat conduction effects are better.
The working principle is as follows: through the work of the driving motor 3, the second shovel blade 19, the stirring frame 20 and the first shovel blade 2 respectively stir the upper middle section and the lower section in the hot melting cylinder 21, so that the effect of all-dimensional stirring and mixing is achieved, the heating cavity 5 is filled with flowing heat conduction oil to enable the interior of the hot melting cylinder 21 to be balanced and average in temperature rise, the heat preservation cover 12 is arranged on the outer side of the middle oil tank 11, the heat emitted by the middle oil tank 11 is respectively discharged to the top end of the raw material and the middle of the raw material through the diversion cover 17 and the plurality of discharge pipes 23, and then the raw material is uniformly heated;
the oil absorption ring pipe 18 is fixedly arranged at the top end of the heating cavity 5, so that heat conducting oil in the heating cavity 5 is low in amount and high in amount, even a small amount of heat conducting oil can be uniformly and effectively heated and melted for a small amount of raw materials, a plurality of branch pipes 22 with equal angles are fixedly arranged at the bottom end of the oil absorption ring pipe 18, the lengths of one part of the branch pipes 22 are reduced in an equal difference mode, the lengths of the other part of the branch pipes 22 are the same, heat conducting oil with different liquid levels can be conveniently adsorbed, and the adsorption speed is higher when the liquid level of the heat conducting oil is high;
seted up dust removal window 9 in the middle of through heat preservation cover 12 bottoms, avoid dust among the external environment to get into heat preservation cover 12 inside and block up hot-blast main 16 even, heat preservation cover 12 top fixed mounting has temperature monitor 14, and 14 bottom fixedly connected with temperature sensor 8 of temperature monitor, temperature sensor 8 runs through heat preservation cover 12 tops and extends to the inside bottom of middle oil tank 11, temperature variation and hot-blast temperature when the convenient heat conduction oil heating monitor.
Example 2
Referring to fig. 4, a hot melting device for modified asphalt waterproof coiled materials, further, a first spring plate 24 and a second spring plate 25 are respectively and fixedly installed at the heat transfer end of the heating cavity 5 in an inclined manner, and the inclined directions of the first spring plate 24 and the second spring plate 25 are opposite.
The working principle is as follows: the first spring plate 24 and the second spring plate 25 are respectively and fixedly installed at the heat transfer ends of the heating cavity 5 in an inclined mode, the effect of reducing the flow speed of heat transfer oil is achieved, meanwhile, the heat in the heat transfer oil is accelerated to be transmitted to the inner wall of the hot-melt cylinder 21, the inclined directions of the first spring plate 24 and the second spring plate 25 are opposite, and the slow flow effect is further enhanced.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims (7)

1. The utility model provides a hot melt equipment for modified asphalt waterproofing membrane, includes hot melt section of thick bamboo (21), hot melt section of thick bamboo (21) top is provided with reposition of redundant personnel lid (17), and hot melt section of thick bamboo (21) bottom is provided with equal angular anti-skidding landing leg (1), and hot melt section of thick bamboo (21) outside is provided with middle oil tank (11), its characterized in that, heating chamber (5) has been seted up between the inside and outside wall of hot melt section of thick bamboo (21), and heating chamber (5) bottom one side and middle oil tank (11) bottom fixedly connected with advance oil pipe (7), heating chamber (5) top one side and middle oil tank (11) top fixedly connected with arrange oil pipe (13), hot melt section of thick bamboo (21) bottom fixed mounting has driving motor (3), and driving motor (3) output end fixedly connected with changes roller (4), middle oil tank (11) inside fixed mounting has electrothermal tube (10), and middle oil tank (11) outside is provided with heat preservation cover (12), the top end of the heat preservation cover (12) and the top end of the shunt cover (17) are fixedly connected with a hot air pipe (16), and a connecting pipe is arranged between the middle of the shunt cover (17) and the rotating roller (4).
2. The hot melting equipment for the modified asphalt waterproof roll material as claimed in claim 1, wherein an oil suction ring pipe (18) is fixedly installed at the top end of the heating cavity (5), the outlet end of the oil suction ring pipe (18) is fixedly connected with the inlet end of the oil discharge pipe (13), a plurality of branch pipes (22) with equal angles are fixedly installed at the bottom end of the oil suction ring pipe (18), wherein the lengths of one part of the branch pipes (22) are reduced in an equal difference manner, and the lengths of the other part of the branch pipes (22) are the same.
3. The hot melting equipment for the modified asphalt waterproof coiled material according to claim 1, characterized in that the middle of the roller (4) is of a hollow structure, a plurality of second shovel pieces (19), a stirring frame (20) and first shovel pieces (2) are sequentially and fixedly installed on the outer wall of the circumference of the roller (4) from top to bottom, the first shovel pieces (2) are L-shaped, every two stirring frames (20) are located on the same horizontal plane, the stirring frames (20) are fish-shaped, a plurality of exhaust pipes (23) which are equidistant are fixedly installed in the middle of the stirring frame (20), and the tail end of the stirring frame (20) is an exhaust end.
4. The hot melting equipment for the modified asphalt waterproof coiled material according to claim 1, wherein an oil inlet pump (6) is arranged in the middle of the oil inlet pipe (7), an oil well pump (15) is arranged in the middle of the oil discharge pipe (13), and a conveying fan is arranged in the middle of the hot air pipe (16).
5. The hot melting equipment for the modified asphalt waterproof coiled material as claimed in claim 1, wherein a dust removal window (9) is formed in the middle of the bottom end of the heat-insulating cover (12), a temperature display (14) is fixedly mounted at the top end of the heat-insulating cover (12), a temperature sensor (8) is fixedly connected to the bottom end of the temperature display (14), and the temperature sensor (8) penetrates through the top end of the heat-insulating cover (12) and extends to the inner bottom end of the middle oil tank (11).
6. The hot melting equipment for the modified asphalt waterproof coiled material as claimed in claim 5, wherein the outer wall of the hot melting cylinder (21), the heat insulation cover (12), the oil inlet pipe (7), the oil discharge pipe (13), the hot air pipe (16) and the shunt cover (17) are all made of heat insulation materials, and the inner wall of the hot melting cylinder (21) and the middle oil tank (11) are made of heat conduction materials.
7. The hot melting equipment for the modified asphalt waterproof coiled material according to claim 1, wherein the heat transfer ends of the heating cavity (5) are respectively and fixedly provided with a first spring plate (24) and a second spring plate (25) in an inclined manner, and the first spring plate (24) and the second spring plate (25) are opposite in inclined direction.
CN202220571772.0U 2022-03-16 2022-03-16 Hot melting equipment for modified asphalt waterproof coiled material Active CN216946877U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202220571772.0U CN216946877U (en) 2022-03-16 2022-03-16 Hot melting equipment for modified asphalt waterproof coiled material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202220571772.0U CN216946877U (en) 2022-03-16 2022-03-16 Hot melting equipment for modified asphalt waterproof coiled material

Publications (1)

Publication Number Publication Date
CN216946877U true CN216946877U (en) 2022-07-12

Family

ID=82296242

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202220571772.0U Active CN216946877U (en) 2022-03-16 2022-03-16 Hot melting equipment for modified asphalt waterproof coiled material

Country Status (1)

Country Link
CN (1) CN216946877U (en)

Similar Documents

Publication Publication Date Title
CN214551225U (en) Quick dewatering device of polyurea production
CN216946877U (en) Hot melting equipment for modified asphalt waterproof coiled material
CN210859253U (en) Mining coal seam water injection device
CN209913775U (en) Crystalline silicon solar cell module with snow melting function
CN213421588U (en) Coiled material cooling device
CN215166477U (en) Green building structure
CN213315838U (en) Fluorocarbon spraying equipment used in aluminum veneer machining process
CN212538332U (en) Solar water heater cleaning device based on green building
CN214831666U (en) Stirring and mixing device for asphalt with uniform heating
CN212821594U (en) Cement bin cleaning device
CN211144571U (en) Heat-insulating integrated drainage system for tunnel auxiliary heat
CN206247659U (en) A kind of family expenses flat plate solar water heater
CN115095089B (en) Inverted waterproof roof with drainage waterproof aggregation structure and waterproof method thereof
CN212498323U (en) Automatic feeding device for constructional engineering
CN214259213U (en) Building curtain wall cleaning device
CN216481659U (en) Anti-freezing device of solar water heater
CN219912251U (en) Heat preservation integrated sleeve for household air conditioner
CN220120653U (en) Mechanism for detecting seepage-proofing property of waterproof coiled material
CN214737727U (en) Road surface spray set of adjustable spraying scope
CN215004131U (en) Plastic tubing gas tightness detection device
CN218640294U (en) Energy-saving polyester tape cooling device
CN215105844U (en) Rain and sewage flow divider for buildings
CN216428938U (en) Semi-automatic plastering device for building construction
CN216766564U (en) Energy-saving house building drainage mechanism
CN213114755U (en) Dredging device for hydraulic engineering

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant