CN218933656U - Waterproof coiled material paving device - Google Patents

Waterproof coiled material paving device Download PDF

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Publication number
CN218933656U
CN218933656U CN202222938544.5U CN202222938544U CN218933656U CN 218933656 U CN218933656 U CN 218933656U CN 202222938544 U CN202222938544 U CN 202222938544U CN 218933656 U CN218933656 U CN 218933656U
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China
Prior art keywords
pipe
coiled material
limiting
rods
waterproof
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CN202222938544.5U
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Chinese (zh)
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古汉文
赵跃环
李博
胡先训
刘小光
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China Construction First Group Corp Ltd
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China Construction First Group Corp Ltd
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Priority to CN202222938544.5U priority Critical patent/CN218933656U/en
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    • 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
    • Y02W30/30Landfill technologies aiming to mitigate methane emissions

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Abstract

The utility model discloses a waterproof coiled material paving device, which comprises: the side wall is communicated with a plurality of connecting pipes of the flaming pipe, the two ends of the connecting pipes are respectively inserted with a first connecting rod, the two ends of the connecting pipes are plugged with openings, and one end of each first connecting rod, which is far away from the connecting pipe, is provided with a connecting piece; the two ends of the gas transmission pipe are respectively communicated with the connecting pipe and the gas tank; the utility model provides a waterproof roll, including connecting pipe, connecting piece, connecting rod, telescopic link, connecting ring, connecting piece, coiled material bracing piece, a pair of second connecting rod that are located the both ends of connecting pipe respectively and correspond respectively with a connecting piece, all be equipped with the coiled material bracing piece on each second connecting rod, be equipped with the telescopic link on the coiled material bracing piece, be equipped with the spacing ring on another coiled material bracing piece, the free end of telescopic link removes and alternates in spacing ring department, the cover of rotating on the telescopic link is equipped with waterproof coiled material, the flaming mouth of each flaming tube all is towards waterproof coiled material flaming, the one end of second connecting rod is equipped with the go-between, the go-between rotates the cover and establishes on its connecting piece that corresponds, the other end of second connecting rod is equipped with along waterproof coiled material shop edge roll-in. The utility model has convenient use and good paving effect.

Description

Waterproof coiled material paving device
Technical Field
The utility model relates to the technical field of building waterproofing, in particular to a waterproofing membrane paving device.
Background
The waterproof engineering is an important subsection engineering in the field of building engineering, and the construction quality of the waterproof engineering is directly related to the safety of a building. There are 4 common waterproof materials, cement mortars, polyurethanes, JS waterproof paint and acrylic. In terms of waterproof performance, polyurethane > acrylic > JS waterproof paint > cement mortar. The most commonly used waterproof materials in construction engineering are SBS modified asphalt waterproof coiled materials and cement-based permeable crystallization waterproof coatings.
The traditional waterproof coiled material paving method is that firstly, baking is carried out in place by fire, then paving is carried out, finally, seam pressing treatment is carried out, the waterproof coiled material is usually completed by 2 to 3 people in multiple steps, the labor cost is high, and the construction efficiency is low.
Disclosure of Invention
It is an object of the present utility model to solve at least the above problems and to provide at least the advantages to be described later.
The utility model also aims to provide a waterproof coiled material paving device which enables the baking, paving and seam pressing of the fireproof coiled material to be carried out simultaneously by reasonably arranging a flaming structure, a waterproof coiled material and a pressing roller structure, and can be operated by a single person, thereby achieving the purposes of improving the construction efficiency and reducing the labor cost.
To achieve these objects and other advantages and in accordance with the purpose of the utility model, there is provided a waterproofing membrane laying device comprising:
the connecting pipe is provided with a plurality of flaming pipes in a communicating way, two ends of the connecting pipe are respectively inserted with a first connecting rod, two ends of the connecting pipe are plugged with openings, the first connecting rod is rotatably provided with rollers, and one end, far away from the connecting pipe, of the first connecting rod is provided with a connecting piece;
one end of the gas pipe is communicated with the connecting pipe, the other end of the gas pipe is communicated with the gas tank through a gas hose, and a gas valve is arranged on the gas pipe;
the pair of second connecting rods are respectively located at two ends of the connecting pipe and correspond to a connecting piece respectively, coiled material supporting rods are arranged on the second connecting rods respectively, telescopic rods parallel to the connecting pipe are arranged on one coiled material supporting rod, limiting rings are arranged on the other coiled material supporting rods, the free ends of the telescopic rods move and penetrate through the limiting rings, waterproof coiled materials are sleeved on the telescopic rods in a rotating mode, the flaming ports of the flaming tubes face towards the waterproof coiled materials in a flaming mode, connecting rings are arranged at one ends of the second connecting rods, the connecting rings are rotatably sleeved on the corresponding connecting pieces, and pressing rollers rolling on the paving edges of the waterproof coiled materials are arranged at the other ends of the second connecting rods.
Preferably, in the waterproof coiled material paving device, the air pipe includes:
the two bifurcated ends of the V-shaped branching tube are communicated with the connecting tube;
and one end of the holding pipe is communicated with the tip end of the branching pipe, the other end of the holding pipe is communicated with the fuel gas hose, and the holding pipe is provided with the fuel gas valve.
Preferably, in the waterproof coiled material paving device, the V-shaped pipeline supporting rods are hinged on the branching pipes, two branch ends of the pipeline supporting rods are respectively hinged with two branch pipes of the branching pipes, first limiting blocks are arranged below the two branch pipes of the branching pipes, elastic first clamping grooves are formed in the first limiting blocks, and the two branch rods of the pipeline supporting rods are respectively clamped in the corresponding first clamping grooves.
Preferably, in the waterproof coiled material paving device, a limiting rod is arranged between two branch pipes of the branching pipe, a second limiting block is arranged on the limiting rod, and an elastic second clamping groove is arranged on the second limiting block.
Preferably, in the waterproof roll paving device, the connecting piece includes:
one end of the connecting block is connected with the first connecting rod, and the other end of the connecting block is provided with a first threaded hole;
the screw part of the limiting screw is inserted into the first threaded hole in a rotating mode, and the connecting ring is sleeved on the screw part in a rotating mode and located between the nut of the limiting screw and the connecting block.
Preferably, in the waterproof coiled material paving device, a plurality of second threaded holes are formed in the hole wall of the first threaded hole in a surrounding mode, a limiting plate is arranged on the connecting ring, a connecting hole is formed in the limiting plate, and a first screw is sequentially screwed into the connecting hole and the second threaded hole corresponding to the inserting position.
Preferably, in the waterproof coiled material paving device, the nail part is provided with a limiting hole corresponding to a second threaded hole, and a second screw is sequentially screwed into the second threaded hole and the limiting hole corresponding to the position.
The utility model at least comprises the following beneficial effects: the utility model can simultaneously bake, spread and joint the waterproof coiled material, and has high spreading efficiency; the utility model has simple operation, can synchronously finish the operation by a single person, and saves manpower; the waterproof coiled material paved by the utility model has uniform quality, meets the standard requirement and has good paving effect.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.
Drawings
Fig. 1 is a schematic top view of a waterproof roll paving device according to one embodiment of the present utility model;
fig. 2 is a schematic front view of a waterproof roll paving device according to one embodiment of the present utility model;
FIG. 3 is a schematic diagram of a connection relationship between a connection member and a connection ring according to one embodiment of the present utility model;
the device comprises a 1-holding pipe, a 2-branching pipe, a 3-pipeline supporting rod, a 4-first limiting block, a 5-second limiting block, a 6-limiting rod, a 7-roller, an 8-connecting piece, a 9-connecting ring, a 10-connecting pipe, an 11-flaming pipe, a 12-second connecting rod, a 13-press roll, a 14-telescopic rod, a 15-limiting ring, a 16-waterproof coiled material, a 17-coiled material supporting rod, a 18-connecting block, a 19-limiting plate, a 20-first screw, a 21-nut, a 22-first connecting rod, a 23-first threaded hole and a 24-nail part.
Detailed Description
The present utility model is described in further detail below with reference to the drawings to enable those skilled in the art to practice the utility model by referring to the description.
It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
It should be noted that the experimental methods described in the following embodiments, unless otherwise specified, are all conventional methods, and the reagents and materials, unless otherwise specified, are all commercially available; in the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may be fixedly connected, disposed, or detachably connected, disposed, or integrally connected, disposed, for example. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. The terms "transverse," "longitudinal," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used for convenience in describing and simplifying the description of the present utility model based on the orientation or positional relationship shown in the drawings, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present utility model.
As shown in fig. 1, 2 and 3, the present application provides a waterproof roll paving device, including:
the connecting pipe 10 is provided with a plurality of flaming pipes 11 in a communicating way on the side wall, two ends of the connecting pipe 10 are respectively inserted with a first connecting rod 22, two ends of the first connecting rod 22 are plugged, the first connecting rod 22 is rotatably provided with a roller 7, and one end of the first connecting rod 22, which is far away from the connecting pipe 10, is provided with a connecting piece 8;
one end of the gas pipe is communicated with the connecting pipe 10, the other end of the gas pipe is communicated with the gas tank through a gas hose, and a gas valve is arranged on the gas pipe;
the pair of second connecting rods 12 are respectively located at two ends of the connecting pipe 10 and respectively correspond to a connecting piece 8, coiled material supporting rods 17 are respectively arranged on the second connecting rods 12, telescopic rods 14 parallel to the connecting pipe 10 are arranged on one coiled material supporting rod 17, limiting rings 15 are arranged on the other coiled material supporting rods 17, free ends of the telescopic rods 14 are movably inserted in the limiting rings 15, waterproof coiled materials 16 are rotatably sleeved on the telescopic rods 14, the flaming ports of the flaming pipes 11 face the waterproof coiled materials 16 to be flamed, connecting rings 9 are arranged at one ends of the second connecting rods 12, the connecting rings 9 are rotatably sleeved on the corresponding connecting pieces 8, and pressing rolls 13 rolling along the paving edges of the waterproof coiled materials 16 are arranged at the other ends of the second connecting rods 12.
The waterproof coiled material paving device mainly comprises a flaming structure and a paving structure, wherein the flaming structure comprises a connecting pipe 10 and an air pipe communicated with the connecting pipe, the paving structure comprises a pair of second connecting rods 12, one end of the air pipe is communicated with the connecting pipe 10, the other end of the air pipe is communicated with one end of a fuel gas hose for conveying fuel gas, the other end of the fuel gas hose is communicated with a fuel gas tank for supplying fuel gas, a fuel gas valve for controlling the flow rate of the fuel gas is arranged on the air pipe, first connecting rods 22 are inserted at two ends of the connecting pipe 10 and are plugged at two ends of the connecting pipe, the connecting pipe 10 is prevented from leaking air, rollers 7 are rotatably arranged on the first connecting rods 22 and are used for supporting and moving the connecting pipe 10, one end, far away from the connecting pipe 10, of each first connecting rod 22 is provided with a connecting piece 8, a pair of second connecting rods 12 are respectively positioned at two ends of the connecting pipe 10 and respectively correspond to the connecting piece 8, one end of each second connecting rod 12 is provided with a connecting ring 9, each connecting ring 9 is rotatably sleeved on the corresponding connecting piece 8, each second connecting rod 12 can flexibly rotate around the connecting pipe 10, each second connecting rod 12 is provided with a coiled material supporting rod 17, one coiled material supporting rod 17 is provided with a telescopic rod 14 parallel to the connecting pipe 10, the telescopic rod 14 is rotatably sleeved with a waterproof coiled material 16, the other coiled material supporting rod 17 is provided with a limiting ring 15, one end of the telescopic rod 14 is connected with one coiled material supporting rod 17, the other end of the telescopic rod 14 is movably inserted at the limiting ring 15, the limiting ring 15 is used for supporting and limiting the other end of the telescopic rod 14, so that the two coiled material supporting rods 17 and the two second connecting rods 12 synchronously rotate around the connecting pipe 10, the telescopic rod 14 is contracted, the other end of the telescopic rod 14 is separated from the limiting ring 15, the waterproof coiled material 16 is convenient to assemble and disassemble, the side wall of the connecting pipe 10 is communicated with a plurality of fire-spraying pipes 11, the fire-spraying opening of each fire-spraying pipe 11 sprays fire towards the waterproof coiled material 16 so as to heat and bake the waterproof coiled material 16, the other end of each second connecting rod 12 is rotationally provided with a press roller 13 which is rolled along the laying edge of the waterproof coiled material 16, and the edge of the waterproof coiled material 16 is subjected to seam pressing treatment during laying.
The application method of the waterproof coiled material paving device provided by the technical scheme is as follows: when the waterproof roll is paved, the gas valve is opened firstly to enable gas to sequentially pass through the gas hose, the gas pipe and the connecting pipe 10 from the gas tank to reach each flaming pipe 11, and the gas is ignited at the flaming port of the flaming pipe 11 through a flame or electric ignition device and the like, so that the flaming pipe 11 is flaming towards the waterproof roll 16, the waterproof roll 16 is continuously heated, then the gas pipe is pulled, the whole device is driven to move, meanwhile, the waterproof roll 16 of the unfolding part is fixed under the pressure of the press roll, the waterproof roll 16 of the curling part is rotated around the telescopic rod 14 and is continuously unfolded and paved, and the press roll 13 rotates to roll the edge of the waterproof roll 16 paved to finish the seam pressing operation.
The technical scheme at least comprises the following beneficial effects: the connecting pipes are provided with a plurality of flaming pipes which are flaming towards the waterproof coiled materials, one ends of a pair of second connecting rods are respectively connected with two ends of the connecting pipes in a rotating way, coiled material supporting rods are arranged on the second connecting rods, telescopic rods parallel to the connecting pipes are arranged on the coiled material supporting rods, waterproof coiled materials are sleeved on the telescopic rods in a rotating way, the other ends of the second connecting rods are provided with pressing rolls which roll along the paving edges of the waterproof coiled materials, the connecting pipes move to drive the second connecting rods to move, meanwhile, the waterproof coiled materials are enabled to rotate around the telescopic rods to be unfolded, the pressing rolls are driven to move to roll the paving edges of the waterproof coiled materials, namely, flaming is carried out to enable the waterproof coiled materials to heat, the waterproof coiled materials to be unfolded, and the paving edges of the waterproof coiled materials to be sewn simultaneously, so that the working efficiency is high, and one person can finish paving work, and manpower is saved;
one end of the second connecting rod is rotatably sleeved on a connecting piece connected with the connecting pipe through a connecting ring, so that the second connecting rod can conveniently rotate around the connecting pipe, the angle between the gas pipe and the paving surface can be adjusted, and the operator can conveniently pull the device;
all be provided with the coiled material bracing piece on each second connecting rod, be provided with the telescopic link parallel with the connecting pipe on one of them coiled material bracing piece, rotate the cover on the telescopic link and be equipped with waterproofing membrane, be provided with the spacing ring on another coiled material bracing piece, the one end and the coiled material bracing piece of telescopic link are connected, the other end removes to alternate in spacing ring department, the spacing ring is used for supporting the position that limits the telescopic link other end to make two coiled material bracing pieces, two second connecting rods around the connecting pipe synchronous revolution, shrink the telescopic link, be convenient for waterproofing membrane's dismouting after making its other end break away from the spacing ring.
In another technical scheme, as shown in fig. 1 and 2, in the waterproof coiled material paving device, the air pipe includes:
a V-shaped branching pipe 2, both branched ends of which are communicated with the connecting pipe 10;
and one end of the holding pipe 1 is communicated with the tip end of the branching pipe 2, the other end of the holding pipe is communicated with the fuel gas hose, and the holding pipe 1 is provided with the fuel gas valve. The branch pipe is formed by connecting two branch pipes, and the branch pipe and the connecting pipe form a triangular structure which is more stable; the holding tube is convenient for the staff to hold, and the comfort level is increased.
In another technical scheme, as shown in fig. 1, 2 and 3, in the waterproof coiled material paving device, a V-shaped pipeline supporting rod 3 is hinged on the branching pipe 2, two branching ends of the pipeline supporting rod 3 are respectively hinged with two branching pipes of the branching pipe 2, first limiting blocks 4 are arranged below the two branching pipes of the branching pipe 2, elastic first clamping grooves are formed in the first limiting blocks 4, and the two branching rods of the pipeline supporting rod 3 are respectively clamped in the corresponding first clamping grooves. The pipeline supporting rod is formed by connecting two fork rods, the plane of the pipeline supporting rod is vertical to the paving surface, when a worker stops, the pipeline supporting rod is used for supporting the gas pipe, and when the worker works again, the worker does not need to bend down to pick up the gas pipe; the first limiting block is used for fixing the position of the pipeline supporting rod so as to enable the pipeline supporting rod to be supported stably; the first draw-in groove inside wall can set up elastic rubber pad to increase its clamping strength.
In another technical scheme, as shown in fig. 1 and 2, in the waterproof coiled material paving device, a limiting rod 6 is arranged between two branch pipes of the branching pipe 2, a second limiting block 5 is arranged on the limiting rod 6, and an elastic second clamping groove is arranged on the second limiting block 5. When the paving operation is performed, the pipeline supporting rod is separated from the first clamping groove and rotates around the hinging point of the pipeline supporting rod and the branching pipe, and the tip end of the pipeline supporting rod is clamped in the second clamping groove to be stored, so that the branching pipe is prevented from moving up and down during the paving operation; the second draw-in groove inside wall can set up elastic rubber pad to increase its clamping strength.
In another aspect, as shown in fig. 3, in the waterproof roll laying device, the connecting member 8 includes:
a connection block 18, one end of which is connected to the first connection rod 22, and the other end of which is provided with a first screw hole 23;
the nail part 24 of the limit screw is screwed in the first threaded hole 23, and the connecting ring 9 is rotatably sleeved on the nail part 24 and is positioned between the nut 21 of the limit screw and the connecting block 18. And the connecting ring is separated from the connecting block by rotating the limiting screw, so that the connecting pipe is indirectly separated from the second connecting rod, and maintenance and repair are performed.
In another technical scheme, as shown in fig. 3, in the waterproof coiled material paving device, a plurality of second threaded holes are formed in the hole wall of the first threaded hole 23 in a surrounding manner, a limiting plate 19 is arranged on the connecting ring 9, a connecting hole is formed in the limiting plate 19, and a first screw 20 is sequentially screwed into the connecting hole and the second threaded hole corresponding to the position. According to the state of use needs, can insert first screw soon connecting hole and the second screw hole that different positions correspond to fixed limiting plate and the relative position of connecting block, the angle between indirect fixed second connecting rod and the gas-supply pipe, if when not using the device, can adjust the contained angle between second connecting rod and the gas-supply pipe to as little as possible, in order to conveniently accomodate and carry.
In another technical scheme, in the waterproof coiled material paving device, a limiting hole corresponding to a second threaded hole is formed in the nail part, and a second screw is sequentially screwed into the second threaded hole and the limiting hole corresponding to the second threaded hole. The second screw is used for preventing the nail from rotating and consolidating the device structure.
The number of equipment and the scale of processing described herein are intended to simplify the description of the present utility model. Applications, modifications and variations of the present utility model will be readily apparent to those skilled in the art.
Although embodiments of the present utility model have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the utility model would be readily apparent to those skilled in the art, and accordingly, the utility model is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.

Claims (7)

1. Waterproofing membrane spreads subsides device, its characterized in that includes:
the connecting pipe is provided with a plurality of flaming pipes in a communicating way, two ends of the connecting pipe are respectively inserted with a first connecting rod, two ends of the connecting pipe are plugged with openings, the first connecting rod is rotatably provided with rollers, and one end, far away from the connecting pipe, of the first connecting rod is provided with a connecting piece;
one end of the gas pipe is communicated with the connecting pipe, the other end of the gas pipe is communicated with the gas tank through a gas hose, and a gas valve is arranged on the gas pipe;
the pair of second connecting rods are respectively located at two ends of the connecting pipe and correspond to a connecting piece respectively, coiled material supporting rods are arranged on the second connecting rods respectively, telescopic rods parallel to the connecting pipe are arranged on one coiled material supporting rod, limiting rings are arranged on the other coiled material supporting rods, the free ends of the telescopic rods move and penetrate through the limiting rings, waterproof coiled materials are sleeved on the telescopic rods in a rotating mode, the flaming ports of the flaming tubes face towards the waterproof coiled materials in a flaming mode, connecting rings are arranged at one ends of the second connecting rods, the connecting rings are rotatably sleeved on the corresponding connecting pieces, and pressing rollers rolling on the paving edges of the waterproof coiled materials are arranged at the other ends of the second connecting rods.
2. The waterproofing membrane laying device according to claim 1, wherein said air pipe comprises:
the two bifurcated ends of the V-shaped branching tube are communicated with the connecting tube;
and one end of the holding pipe is communicated with the tip end of the branching pipe, the other end of the holding pipe is communicated with the fuel gas hose, and the holding pipe is provided with the fuel gas valve.
3. The waterproof coiled material paving device according to claim 2, wherein the branching pipes are hinged with V-shaped pipeline supporting rods, two branch ends of the pipeline supporting rods are respectively hinged with two branch pipes of the branching pipes, first limiting blocks are arranged below the two branch pipes of the branching pipes, elastic first clamping grooves are formed in the first limiting blocks, and the two branch rods of the pipeline supporting rods are respectively clamped in the corresponding first clamping grooves.
4. The waterproof roll paving device according to claim 3, wherein a limiting rod is arranged between two branch pipes of the branching pipe, a second limiting block is arranged on the limiting rod, and an elastic second clamping groove is arranged on the second limiting block.
5. The waterproofing membrane laying device according to claim 1, wherein said connecting member comprises:
one end of the connecting block is connected with the first connecting rod, and the other end of the connecting block is provided with a first threaded hole;
the screw part of the limiting screw is inserted into the first threaded hole in a rotating mode, and the connecting ring is sleeved on the screw part in a rotating mode and located between the nut of the limiting screw and the connecting block.
6. The waterproof roll paving device of claim 5, wherein a plurality of second threaded holes are formed in the periphery of the hole wall of the first threaded hole, a limiting plate is arranged on the connecting ring, connecting holes are formed in the limiting plate, and a first screw is sequentially screwed into the connecting holes and the second threaded holes corresponding to the positions.
7. The waterproof roll paving apparatus of claim 6, wherein the nail portion is provided with a limiting hole corresponding to a second threaded hole thereof, and a second screw is sequentially screwed into the second threaded hole and the limiting hole corresponding to the position.
CN202222938544.5U 2022-11-04 2022-11-04 Waterproof coiled material paving device Active CN218933656U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222938544.5U CN218933656U (en) 2022-11-04 2022-11-04 Waterproof coiled material paving device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222938544.5U CN218933656U (en) 2022-11-04 2022-11-04 Waterproof coiled material paving device

Publications (1)

Publication Number Publication Date
CN218933656U true CN218933656U (en) 2023-04-28

Family

ID=86086172

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202222938544.5U Active CN218933656U (en) 2022-11-04 2022-11-04 Waterproof coiled material paving device

Country Status (1)

Country Link
CN (1) CN218933656U (en)

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