CN215860235U - Waterproof device for joint of pipe sheet - Google Patents
Waterproof device for joint of pipe sheet Download PDFInfo
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- CN215860235U CN215860235U CN202122091278.2U CN202122091278U CN215860235U CN 215860235 U CN215860235 U CN 215860235U CN 202122091278 U CN202122091278 U CN 202122091278U CN 215860235 U CN215860235 U CN 215860235U
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Abstract
The utility model discloses a waterproof device for a pipe piece joint, which mainly solves the problems that the existing pipe piece joint is poor in waterproof effect and a sewage pipeline is easy to deform. The joint waterproof device comprises a polyurethane sealing adhesive layer filled in a joint, a PE sponge strip layer additionally plugged on the polyurethane sealing adhesive layer, an anti-cracking layer arranged on the PE sponge strip layer, and a sealing gasket arranged on the anti-cracking layer; the lower part of the sealing gasket is provided with a plurality of hole grooves; the anti-cracking layer is formed by sequentially laminating a fine stone concrete layer, a gypsum layer, a glass fiber net layer and a putty layer from bottom to top; wherein, the fine stone concrete layer is filled above the PE sponge strip layer. The utility model arranges two waterproof measures of a frame-shaped elastic sealing gasket and caulking at the joint of the duct piece, and the caulking groove sealing material adopts a mode of filling the joint by a PE sponge strip and polyurethane sealant, thereby enhancing the waterproof effect of the joint. And secondly, the pressure stress change of the contact surface of the sealing gasket is small, and the splicing stress is reduced on the premise of meeting the watertight requirement.
Description
Technical Field
The utility model belongs to the technical field of sewage pipe gallery construction, and particularly relates to a waterproof device for a pipe piece joint.
Background
The shield interval of the sewage pipe gallery tunnel is inevitably settled in the later period after the tunnel is run through, particularly, once the settlement deformation of the tunnel reaches a certain amount, the water prevention of the original tunnel fails to cause the water leakage of the tunnel, so that the soil body around the tunnel is solidified, the deformation of the tunnel is aggravated, and the vicious circle finally endangers the safety of the built tunnel. Therefore, the safety of the sewage pipe network system in long-term operation is directly influenced by the waterproof performance of the tunnel structure.
In the construction of a pipe gallery, a pipeline is drilled out through a shield machine, and the outer wall of the pipeline is fixedly reinforced through concrete prefabricated pipe pieces, so that a circular pipe-shaped concrete sewer pipe is formed, and the concrete pipeline is formed by splicing and connecting six prefabricated pipe pieces. The prefabricated pipe segment for the pipeline is usually tile-shaped during manufacturing, and basically all the prefabricated pipe segments are tile-shaped prefabricated pipe segments with the same specification except for special parts. When the prefabricated pipe piece splicing device is used, a plurality of prefabricated pipe pieces are needed to be connected and spliced, and seams are arranged at splicing positions. Thus, waterproofing of the joint is particularly important for the entire duct channel.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a waterproof device for a pipe piece joint, which mainly solves the problems that the existing pipe piece joint is poor in waterproof effect and a sewage pipeline is easy to deform.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
a waterproof device for a pipe sheet joint comprises a polyurethane sealing adhesive layer filled in the joint, a PE sponge strip layer additionally plugged on the polyurethane sealing adhesive layer, an anti-cracking layer arranged on the PE sponge strip layer, and a sealing gasket arranged on the anti-cracking layer; the lower part of the sealing gasket is provided with a plurality of hole grooves; the anti-cracking layer is formed by sequentially laminating a fine stone concrete layer, a gypsum layer, a glass fiber net layer and a putty layer from bottom to top; wherein, the fine stone concrete layer is filled above the PE sponge strip layer.
Further, in the utility model, the upper surface of the sealing pad is also provided with water-swellable rubber.
Further, in the utility model, a waterproof coiled material pull-away layer and a waterproof coating layer are sequentially paved above the sealing gasket from bottom to top; the waterproof coiled material is provided with the pull-away layer and the waterproof coating layer which are covered with the sealing gasket.
Further, in the utility model, the sealing gasket is made of ethylene propylene diene monomer.
Further, in the utility model, the glass fiber net layer adopts an alkali-resistant glass fiber net.
Compared with the prior art, the utility model has the following beneficial effects:
(1) the utility model arranges two waterproof measures of a frame-shaped elastic sealing gasket and caulking at the joint of the duct piece, and the caulking groove sealing material adopts a mode of filling the joint by a PE sponge strip and polyurethane sealant, thereby enhancing the waterproof effect of the joint. Secondly, through opening a plurality of hole grooves in the sealed lower part of filling up, improved stress-strain characteristic, make the seam open when certain range, the pressure stress of sealed contact surface changes lessly, has reduced and has pieced together the stress under the prerequisite that satisfies the watertight requirement.
(2) According to the utility model, the crack prevention layer is arranged and is formed by a multi-layer structure, and the crack prevention layer is added into the joint, so that the joint has higher tensile stress, and cracks at the joint are avoided.
(3) According to the utility model, the rainwater expansion rubber is additionally arranged outside the sealing gasket, so that the waterproof capability of the joint is further enhanced.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of another embodiment of the present invention.
FIG. 3 is a schematic structural diagram of the anti-crack layer of the present invention.
Fig. 4 is a schematic view of the structure of the gasket of the present invention.
Wherein, the names corresponding to the reference numbers are:
the waterproof coating comprises, by weight, 1-a polyurethane sealant layer, 2-a PE sponge strip layer, 3-an anti-cracking layer, 4-a sealing gasket, 5-a pore groove, 6-a fine stone concrete layer, 7-a gypsum layer, 8-a glass fiber net layer, 9-a putty layer, 10-water-swelling rubber, 11-a waterproof coiled material anti-pulling layer and 12-a waterproof coating layer.
Detailed Description
The present invention will be further described with reference to the following description and examples, which include but are not limited to the following examples.
Examples
As shown in fig. 1 to 4, the waterproof device for a tube sheet joint disclosed by the present invention comprises a polyurethane sealant layer 1 filled in a joint, a PE sponge strip layer 2 filled on the polyurethane sealant layer 1, an anti-cracking layer 3 disposed on the PE sponge strip layer 2, and a sealing gasket 4 disposed on the anti-cracking layer 3; the lower part of the sealing gasket 4 is provided with a plurality of hole grooves 5; wherein, the sealing gasket 4 adopts ethylene propylene diene monomer. The hole groove 5 can effectively improve the stress-strain characteristic, so that when the joint is opened in a certain range, the change of the compressive stress of the contact surface of the sealing gasket is small, and the splicing stress is reduced on the premise of meeting the watertight requirement.
In this embodiment, the anti-cracking layer 3 is formed by sequentially laminating a fine stone concrete layer 6, a gypsum layer 7, a glass fiber mesh layer 8 and a putty layer 9 from bottom to top; wherein, the fine stone concrete layer 6 is filled above the PE sponge strip layer 2. The square crack layer of the multilayer structure is added into the joint, so that the joint has higher tensile stress, and cracks at the joint are avoided.
In one embodiment of the present invention, the upper surface of the sealing gasket 4 is further provided with a water-swellable rubber 10, so that the waterproof capability of the joint is further enhanced.
In another embodiment of the utility model, a waterproof coiled material drawing-avoiding layer 11 and a waterproof coating layer 12 are sequentially paved above the sealing gasket 4 from bottom to top; the waterproof coiled material avoiding layer 11 and the waterproof paint layer 12 cover the sealing gasket 4. The waterproof coiled material pull-away layer 7 is wet-laid on the sealing adhesive layer 6; the waterproof coiled material is fixedly bonded with the end of the pipe piece through the pulling-preventing layer 7.
In the utility model, in order to ensure the strength of the glass fiber net layer, the glass fiber net layer 8 adopts the alkali-resistant glass fiber net layer, so that the glass fiber net layer can be prevented from being failed due to the corrosion of the glass fiber net layer by building materials such as gypsum and the like.
Through the design, the frame-shaped elastic sealing gasket and the caulking are arranged at the joint of the pipe piece, and the caulking groove sealing material adopts a mode of filling the joint by the PE sponge strip and the polyurethane sealant, so that the waterproof effect of the joint is enhanced. Secondly, through opening a plurality of hole grooves in the sealed lower part of filling up, improved stress-strain characteristic, make the seam open when certain range, the pressure stress of sealed contact surface changes lessly, has reduced and has pieced together the stress under the prerequisite that satisfies the watertight requirement. Thus, the present invention provides substantial features and improvements over the prior art.
The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and should not be used to limit the scope of the present invention, but all the insubstantial modifications or changes made within the spirit and scope of the main design of the present invention, which still solve the technical problems consistent with the present invention, should be included in the scope of the present invention.
Claims (5)
1. The waterproof device for the joint of the pipe sheet is characterized by comprising a polyurethane sealing adhesive layer (1) filled in the joint, a PE sponge strip layer (2) filled on the polyurethane sealing adhesive layer (1), an anti-cracking layer (3) arranged on the PE sponge strip layer (2) and a sealing gasket (4) arranged on the anti-cracking layer (3); the lower part of the sealing gasket (4) is provided with a plurality of hole grooves (5); the anti-cracking layer (3) is formed by sequentially laminating a fine stone concrete layer (6), a gypsum layer (7), a glass fiber net layer (8) and a putty layer (9) from bottom to top; wherein, the fine stone concrete layer (6) is filled above the PE sponge strip layer (2).
2. A water-proofing device for pipe joints according to claim 1, characterized in that the upper surface of said sealing gasket (4) is further provided with water-swellable rubber (10).
3. The waterproof device for pipe joint seam according to claim 1, wherein a waterproof coiled material layer (11) and a waterproof paint layer (12) are sequentially laid on the sealing gasket (4) from bottom to top; the waterproof coiled material drawing avoiding layer (11) and the waterproof coating layer (12) cover the sealing gasket (4).
4. A water-proofing device for pipe joints according to claim 3, characterized in that said sealing gasket (4) is made of epdm rubber.
5. The waterproof device for pipe slice joint as claimed in claim 4, wherein the glass fiber net layer (8) is alkali-resistant glass fiber net.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122091278.2U CN215860235U (en) | 2021-08-31 | 2021-08-31 | Waterproof device for joint of pipe sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122091278.2U CN215860235U (en) | 2021-08-31 | 2021-08-31 | Waterproof device for joint of pipe sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215860235U true CN215860235U (en) | 2022-02-18 |
Family
ID=80246352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122091278.2U Active CN215860235U (en) | 2021-08-31 | 2021-08-31 | Waterproof device for joint of pipe sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215860235U (en) |
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2021
- 2021-08-31 CN CN202122091278.2U patent/CN215860235U/en active Active
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