CN114293720A - Portable waterproofing membrane spreads and pastes device - Google Patents
Portable waterproofing membrane spreads and pastes device Download PDFInfo
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- CN114293720A CN114293720A CN202111663556.5A CN202111663556A CN114293720A CN 114293720 A CN114293720 A CN 114293720A CN 202111663556 A CN202111663556 A CN 202111663556A CN 114293720 A CN114293720 A CN 114293720A
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- gas
- fire
- waterproofing membrane
- socket
- portable
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- 238000004078 waterproofing Methods 0.000 title claims abstract description 21
- 239000012528 membrane Substances 0.000 title claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 42
- 239000010959 steel Substances 0.000 claims abstract description 42
- 239000000463 material Substances 0.000 claims abstract description 27
- 239000011178 precast concrete Substances 0.000 claims abstract description 16
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 8
- 238000003466 welding Methods 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 22
- 239000004567 concrete Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 47
- 230000000694 effects Effects 0.000 description 5
- 239000002737 fuel gas Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009435 building construction Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention discloses a portable waterproof coiled material paving device, which comprises: the device comprises a fire nozzle, fixed square steel, a connecting rod, a finished handle, a position adjusting device, a socket cross rod, a detachable socket cross rod, a precast concrete cylinder and annular reinforcing steel bars. This device is fixed in waterproofing membrane between socket joint horizontal pole and the detachable socket joint horizontal pole steel pipe. After the fixing is firm, the precast concrete circular column can be installed on the device and used for laying a basement roof to prevent water. The labor and the related cost of secondary paving can be saved. The two side flame ports are provided with two gas conveying rubber pipelines, so that the flame at the lap joint position of the internal and external corners and the waterproof coiled material is ensured to be larger, and the waterproof coiled material can be more fully combined with the concrete base layer. Effectively reducing the risk of leakage. This device is applicable to the condition of large tracts of land waterproofing membrane construction, and this device can one accomplish the whole construction contents of waterproofing membrane. Half of labor cost is saved, waterproof construction quality is improved, leakage risk is reduced, and economic benefit is improved.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a portable waterproof coiled material paving device.
Background
The real estate market has gained a large space for development against the large trend background of today. Meanwhile, the product types in the market are infinite, and large contrast competition is generated. In this context, people are beginning to pay attention to the quality of current houses, and among them, the waterproof concern is the highest. In buildings, waterproofing techniques are closely related to the service life of the building, and if problems occur, losses that are difficult to compensate may occur. Therefore, in the current building construction field, the waterproof layer construction technology must be continuously strengthened, and the construction period and the construction quality are the most important components.
Disclosure of Invention
In view of the above situation, the invention provides a portable waterproof roll paving device, which solves the problems that the existing roof has poor waterproof construction effect, needs multi-person construction, has low working efficiency, has a large amount of hollowing phenomenon in the paving process to cause roof leakage,
in order to achieve the purpose, the invention adopts the technical scheme that:
a portable waterproofing membrane paving device, includes:
one end of the connecting rod is sequentially connected with a fixed square steel and a fire-jet, and a gas conveying pipeline communicated with the fire-jet is arranged in the connecting rod and the fixed square steel;
the socket and spigot cross bar assembly is used for installing waterproof coiled materials, two ends of the socket and spigot cross bar assembly are connected to two ends of the fixed square steel respectively through position adjusting devices, each position adjusting device comprises an adjusting plate with a transverse slideway in the middle and screws arranged in the transverse slideways in a sliding mode, the screws are connected to two ends of the fixed square steel, and the adjusting plates are connected to the socket and spigot cross bar assembly;
and the precast concrete column is arranged on one side of the annular reinforcing steel bar in a penetrating manner, and the other side of the annular reinforcing steel bar is clamped in a clamping opening formed in the top of the adjusting plate.
In some embodiments of the apparatus of the present invention, the socket rail assembly comprises a socket-connected fixed socket rail and a detachable socket rail, one end of the fixed socket rail is fixedly connected to an adjustment plate, and one end of the detachable socket rail is detachably connected to a bolt hole on the adjustment plate using a fastener.
In some embodiments of the device of the present invention, the fixed square steel is in an elongated shape and is vertically connected to one end of the connecting rod, and the plurality of fire spouts are fixedly connected to the lower side of the fixed square steel at equal intervals.
In some embodiments of the device of the present invention, two ends of the gas transmission pipeline in the fixed square steel are closed, and the gas transmission pipeline connected with the fire-jet is provided with a pipeline tee joint connected with the gas pipelines of a plurality of fire-jet openings below.
In some embodiments of the device of the present invention, the fire-jet ports are square air outlets formed by welding small steel plates, two gas pipelines are respectively disposed in the fire-jet ports located on two sides of the plurality of fire-jet ports, and one gas pipeline is disposed in the remaining fire-jet ports.
In some embodiments of the inventive apparatus, an end of the connecting rod remote from the burner is connected to a finish handle.
In some embodiments of the device of the present invention, the handle is connected to a gas valve and connected to a rear gas pipe via the gas valve, the rear gas pipe being connected to a gas tank.
In some embodiments of the device according to the invention, the gas delivery duct in the connecting rod is fixed to a rubber duct, which is a non-flexible tube with a wire inside, on a section close to the finished handle.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
(1) the device is placed in a coiled material, gas is turned on through a switch under a finished product handle, the flame-throwing port is ignited by using open fire, the waterproof coiled material is dragged, and the open fire can heat the whole coiled material along with backward movement of the coiled material, so that the effect of full adhesion is achieved;
(2) according to the invention, through the formation of the device, the construction period of waterproof construction of the coiled material can be greatly reduced, the construction is completed by matching two persons to one person, the overall efficiency is improved by half, and the construction quality is better improved; the two gas branch pipelines are respectively arranged in the flame ports on the two sides, so that a better pasting effect is ensured at the lap joint positions on the two sides;
(3) the invention has extremely high reuse rate, is a full-turnover device, controls the size of fuel gas by adjusting the pressing force of the fuel gas valve switch and the heating distance from the coiled material, and ensures the requirements of the construction of the waterproof coiled material on the temperature under different conditions and different seasons.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a plan view of a portable waterproofing membrane paving device according to an embodiment of the present invention.
Fig. 2 is an elevation view of a portable waterproofing membrane paving device provided by an embodiment of the present invention.
The correspondence of reference numerals to components is as follows:
1-a fire nozzle, 2-fixed square steel, 3-a connecting rod, 4-a finished handle, 5-a position adjusting device, 51-a transverse slideway, 6-a fixed socket cross rod, 7-a detachable socket cross rod, 8-a precast concrete cylinder, 9-a ring-shaped reinforcing steel bar and 10-a waterproof coiled material.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Referring to fig. 1 and 2, the portable waterproofing membrane paving device provided by the embodiment of the invention mainly comprises a fire nozzle 1, fixed square steel 2, a connecting rod 3, a finished handle 4, a position adjusting device 5, a fixed socket cross rod 6, a detachable socket cross rod 7, a precast concrete column 8 and an annular steel bar 9 with the diameter of 20 mm. A gas rubber pipeline is arranged in the fire-jet 1 and is connected with a gas conveying pipeline in the connecting rod 3, and the fire-jet 1 is arranged and fixed at the lower position of the same side of a strip-shaped fixed square steel 2 at equal intervals. Wherein, two gas pipes are respectively arranged in the flame ports 1 at two sides, and one gas pipe is arranged in the rest flame ports 1.
In this embodiment, one fixed square steel 2 is used to connect 5 flame ports 1 and connecting rods 3. The middle position of one side of the fixed square steel 2 without the flame-throwing hole 1 is vertically connected with the connecting rod 3. A gas pipeline with a large length and a large pipe diameter is arranged in the fixed square steel 2 to convey gas to the 5 fire nozzles 1, and seven branches are counted. Wherein the gas rubber pipeline needs to be fixed in the fixed square steel 2, and the stability of gas passing is ensured. A gas rubber pipeline with the same pipe diameter as that of the fixed square steel 2 is arranged in the connecting rod 3. A gas rubber main pipeline and a gas valve are arranged in the finished product handle 4, and the gas valve is preferably a check valve and is used for connecting gas and a gas pipeline in the connecting rod 3. The check valve can ensure that the gas switch is easier to control during operation.
The position adjusting means 5 functions to control the distance of the flame from the waterproof roll 10, thereby ensuring the temperature at which the waterproof roll 10 is heated. The ignition construction is carried out after the distance is confirmed before the construction. Fixed socket joint horizontal pole 6 is the L type, one end and position adjusting device 5 fixed connection, and the other end is connected with the one end socket joint formula of detachable socket joint horizontal pole 7, can adopt bolt cooperation bolt hole to connect. The other end of the detachable socket cross rod 7 is detachably connected with another position adjusting device 5 by adopting a bolt or a screw. One side of keeping away from position control device 5 in the fixed socket joint horizontal pole 6 of L type is provided with the steel pipe that supplies the cover to establish waterproofing membrane 10, and the sponge is wrapped up in the steel pipe outside comprehensively, guarantees to form the guard action to waterproofing membrane 10 when rotating, prevents waterproofing membrane 10's loss.
In the embodiment of the invention, the size of the flame-throwing nozzle 1 is 6mm by 10mm by 3 mm. The distance between every two flame ports 1 is 15cm, two gas delivery rubber pipelines are respectively arranged in two flame ports 1 on two sides in parallel, and the length of each flame port 1 is 4 cm-6 cm. The distance between the two fire-jet ports 1 on the two sides and the edge of the fixed square steel 2 is respectively 5 cm. Because both sides position is the coiled material overlap joint, so use two gas to carry the rubber pipeline and increase the heating temperature of coiled material overlap joint to make the overlap joint paste more firmly.
The size of the fixed square steel 2 is 1 meter of square steel in length, and the diameter of the square steel is 3 cm. And the welding with the flame-throwing nozzle 1 is ensured to be firm. No gap is left in the middle of the welding seam, so that flame is prevented from consuming the inside and the outside of the welding seam at the same time, and the service life of the whole device is ensured. Seven gas conveying rubber pipeline branches are arranged in the fixed square steel 2, wherein two gas conveying pipes are respectively arranged at the fire nozzles 1 at two sides, and the length of each gas conveying pipe in the other three fire nozzles 1 is 4-6 cm. Connecting rod 3 welds with fixed square steel 2, and the welding needs full weld and closely knit, guarantees the stability of device, reduces the influence of naked light to the device. Before welding, the gas conveying pipe needs to be installed and fixed, and welding work of the device is carried out after the gas passage is completed.
In the embodiment of the invention, the position adjusting device 5 is composed of an adjusting plate and screws, the adjusting plate can be made of a steel plate, a transverse slideway 51 is cut in the middle of the steel plate, the screws are arranged in the transverse slideway 51 in a sliding manner, the adjusting plate is connected with a fixed socket cross rod 6 and a detachable socket cross rod 7, the adjusting plate and the detachable socket cross rod 7 can be connected by bolts, holes are needed to be punched after two sides of a fixed square steel 2 are closed, and the nut-shaped holes are ensured to be tightly screwed with the screws in the position adjusting device. The length of the transverse chute was 30 cm.
Preferably, the position adjusting device is made into an L-shaped fixing form, and the position of the fire-spraying opening away from the waterproof roll can be adjusted according to the actual size of open fire in the installation process. Firstly, after the distance between the fire-jet 1 and the waterproof coiled material 10 is determined, the screws on two sides are fixed on the fixed square steel by aligning the positions, and at the moment, the screws are not deep into the fixed square steel 2, so that a gas conveying pipeline in the fixed square steel 2 is prevented from being punctured. The position adjusting device can also adjust the position of the precast concrete cylinder 8. Both sides are detachable, and the whole precast concrete cylinder 8 can form an independent device to be matched with the device for use. The long PVC pipeline is inserted into the mould before the precast concrete cylinder is manufactured, and the hole with the diameter of more than 25mm is reserved so that the threaded annular reinforcing steel bar 9 with the diameter of 20mm can be smoothly inserted into the precast concrete cylinder 8.
In the embodiment of the invention, the annular reinforcing steel bar 9 with the diameter of 20mm is attached to the two movable openings of the position adjusting device by the self gravity of the precast concrete, so that the pushing device which is not suitable for being too fast in the construction process can be controlled.
In the embodiment of the invention, the waterproof coiled material 10 is firstly inserted into the fixed socket cross bar 6, and then the detachable socket cross bar 7 is installed at the other end, so that the waterproof coiled material 10 is fixed on two cross bar steel pipes. After insertion the device is screwed tight using screws.
In the embodiment of the invention, the rear end of the finished product handle 4 is connected with a gas valve, the gas valve is connected with a rear gas pipeline, the rear gas pipeline is connected with a gas tank, and the length of the rear gas pipeline is 10m or more, so that the gas tank does not need to be moved when the whole bundle is dragged when waterproof coiled materials are paved.
In the embodiment of the invention, a rubber pipeline is fixed on a section of the gas conveying pipeline in the connecting rod 3, which is close to the finished product handle 4, and the rubber pipeline is a non-hose pipe containing iron wires.
In the embodiment of the invention, the detachable socket cross bar can be used for placing the whole bundle of waterproof coiled materials in the device after being detached, and the length of the detachable socket cross bar is 300 mm. The socket cross rod is fixed on the position adjusting device, so that the stability of the whole body and the stability of the precast concrete cylinder are ensured. The precast concrete cylinder is wholly can dismantle, can install on the basement roof in the job site, can dismantle this precast concrete cylinder when tower building roofing waterproofing membrane is under construction, guarantees light nature, the convenience of whole device. The precast concrete cylinder is connected with the position adjusting device to form a separate additional device. In this embodiment, the precast concrete cylinder is worn to establish and is installed in one side of annular reinforcing bar, and the bayonet socket (being the running-in) that position adjusting device's regulating plate top was seted up is located to the opposite side card of annular reinforcing bar.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
(1) the device is placed in a coiled material, the gas is turned on through a switch under a finished product handle, and the flame-throwing port is ignited by using open fire. Drag waterproofing membrane, along with the coiled material backward movement, open fire can be with coiled material bulk heating, reaches the effect of fully gluing.
(2) The device is formed, so that the construction period of waterproof construction of the coiled material can be greatly reduced, and the construction can be completed by one person after two persons cooperate to construct. The whole efficiency is improved by half. And the construction quality is better improved. The two gas branch pipelines are respectively arranged in the flame ports on the two sides, so that a better pasting effect is ensured at the lap joint positions on the two sides.
(3) The invention has extremely high reuse rate and is a full-turnover device. The size of the fuel gas is controlled by adjusting the switch pressing force of the fuel gas valve and the heating distance from the coiled material. The requirements of the construction of the waterproof coiled material on the temperature under different conditions and different seasons are ensured.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 in specific cases to those skilled in the art.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "vertical", "inside", "outside", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description and simplification of description, and 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.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.
Claims (8)
1. The utility model provides a portable waterproofing membrane spreads and pastes device which characterized in that includes:
one end of the connecting rod is sequentially connected with a fixed square steel and a fire-jet, and a gas conveying pipeline communicated with the fire-jet is arranged in the connecting rod and the fixed square steel;
the socket and spigot cross bar assembly is used for installing waterproof coiled materials, two ends of the socket and spigot cross bar assembly are connected to two ends of the fixed square steel respectively through position adjusting devices, each position adjusting device comprises an adjusting plate with a transverse slideway in the middle and screws arranged in the transverse slideways in a sliding mode, the screws are connected to two ends of the fixed square steel, and the adjusting plates are connected to the socket and spigot cross bar assembly;
and the precast concrete column is arranged on one side of the annular reinforcing steel bar in a penetrating manner, and the other side of the annular reinforcing steel bar is clamped in a clamping opening formed in the top of the adjusting plate.
2. The portable waterproofing membrane paving device of claim 1 wherein the socket rail assembly comprises a socket connected fixed socket rail and a detachable socket rail, one end of the fixed socket rail is fixedly connected to one of the adjustment plates, and one end of the detachable socket rail is detachably connected to a bolt hole on one of the adjustment plates with a fastener.
3. The portable waterproof roll paving device according to claim 1, wherein the fixed square steel is in an elongated shape and is vertically connected to one end of the connecting rod, and the plurality of fire spouts are fixedly connected below the fixed square steel at equal intervals.
4. The portable waterproofing membrane paving device of claim 3 wherein both ends of the gas delivery pipe in the fixed square steel are closed, the gas delivery pipe connected with the fire-jet is provided with a pipe tee to connect with a plurality of gas pipes below the fire-jet.
5. The portable waterproof roll paving device according to claim 1, wherein the fire-jet ports are square air outlets formed by welding small steel plates, two gas pipelines are respectively arranged in the fire-jet ports on two sides of the plurality of fire-jet ports, and one gas pipeline is arranged in the rest fire-jet ports.
6. The portable waterproofing membrane paving device of claim 1 wherein the end of the connecting rod remote from the burner is connected to a finished handle.
7. The portable waterproofing membrane paving device of claim 6 wherein the finished handle is connected to a gas valve and through the gas valve to a rear gas duct, the rear gas duct being connected to a gas tank.
8. The portable waterproofing membrane paving device according to claim 6 wherein the gas delivery conduit in the connecting rod secures a rubber conduit at a section near the finished handle, the rubber conduit being a non-hose containing iron wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111663556.5A CN114293720A (en) | 2021-12-31 | 2021-12-31 | Portable waterproofing membrane spreads and pastes device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111663556.5A CN114293720A (en) | 2021-12-31 | 2021-12-31 | Portable waterproofing membrane spreads and pastes device |
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| Publication Number | Publication Date |
|---|---|
| CN114293720A true CN114293720A (en) | 2022-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111663556.5A Pending CN114293720A (en) | 2021-12-31 | 2021-12-31 | Portable waterproofing membrane spreads and pastes device |
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| CN (1) | CN114293720A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4547152A (en) * | 1982-09-22 | 1985-10-15 | Find Svendsen | Device for heating the bitumen layer of rolled roofing material |
| USRE32160E (en) * | 1981-08-24 | 1986-05-27 | Combination roofing material unrolling and heat applying apparatus | |
| JPH07102715A (en) * | 1993-10-02 | 1995-04-18 | Toshikura Rekisei Kogyo Kk | Heating device for welding waterproof sheet |
| CN208329415U (en) * | 2018-05-30 | 2019-01-04 | 上海宝冶集团有限公司 | A kind of viscous device of waterproof roll Rapid hot-melting paving |
| CN111535527A (en) * | 2020-06-15 | 2020-08-14 | 中国建筑第四工程局有限公司 | Easy-to-draw automatic ignition waterproofing membrane rapid prototyping spreads car of pasting |
| CN211923278U (en) * | 2020-03-02 | 2020-11-13 | 天元建设集团有限公司 | Waterproofing membrane hot melt is spread and is pasted device |
| CN212613440U (en) * | 2020-05-07 | 2021-02-26 | 新兴华北(北京)建设工程有限公司 | Waterproofing membrane spreads and pastes device |
| CN213868955U (en) * | 2020-08-07 | 2021-08-03 | 云南亚龙建筑工程有限公司 | Building water repellent treatment construction equipment |
-
2021
- 2021-12-31 CN CN202111663556.5A patent/CN114293720A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE32160E (en) * | 1981-08-24 | 1986-05-27 | Combination roofing material unrolling and heat applying apparatus | |
| US4547152A (en) * | 1982-09-22 | 1985-10-15 | Find Svendsen | Device for heating the bitumen layer of rolled roofing material |
| JPH07102715A (en) * | 1993-10-02 | 1995-04-18 | Toshikura Rekisei Kogyo Kk | Heating device for welding waterproof sheet |
| CN208329415U (en) * | 2018-05-30 | 2019-01-04 | 上海宝冶集团有限公司 | A kind of viscous device of waterproof roll Rapid hot-melting paving |
| CN211923278U (en) * | 2020-03-02 | 2020-11-13 | 天元建设集团有限公司 | Waterproofing membrane hot melt is spread and is pasted device |
| CN212613440U (en) * | 2020-05-07 | 2021-02-26 | 新兴华北(北京)建设工程有限公司 | Waterproofing membrane spreads and pastes device |
| CN111535527A (en) * | 2020-06-15 | 2020-08-14 | 中国建筑第四工程局有限公司 | Easy-to-draw automatic ignition waterproofing membrane rapid prototyping spreads car of pasting |
| CN213868955U (en) * | 2020-08-07 | 2021-08-03 | 云南亚龙建筑工程有限公司 | Building water repellent treatment construction equipment |
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Application publication date: 20220408 |
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