CN215861260U - Waterproof device for connecting bolt hole - Google Patents
Waterproof device for connecting bolt hole Download PDFInfo
- Publication number
- CN215861260U CN215861260U CN202122091293.7U CN202122091293U CN215861260U CN 215861260 U CN215861260 U CN 215861260U CN 202122091293 U CN202122091293 U CN 202122091293U CN 215861260 U CN215861260 U CN 215861260U
- Authority
- CN
- China
- Prior art keywords
- waterproof
- gasket
- connecting bolt
- mounting groove
- annular mounting
- 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
Links
Images
Landscapes
- Gasket Seals (AREA)
Abstract
The utility model discloses a waterproof device for a connecting bolt hole, which mainly solves the problem of poor waterproof effect of the existing pipe piece connecting bolt hole. The waterproof device comprises a duct piece connecting hole and a connecting bolt, and also comprises an annular mounting groove arranged on the end surface of the duct piece connecting hole, a waterproof rubber mat arranged in the annular mounting groove, and a gasket, wherein one end of the gasket is attached to the waterproof rubber mat, and the other end of the gasket is attached to the lower end of a nut of the connecting bolt; the lower terminal surface of waterproof cushion sets up to the echelonment, and the step of echelonment is high outside low in the face, the up end of waterproof cushion is provided with a plurality of annular recesses and a plurality of locating flange along waterproof cushion circumference equipartition. According to the utility model, the waterproof rubber mat is additionally arranged between the gasket and the duct piece, the annular mounting groove is formed in the end face of the duct piece, the step is arranged in the annular mounting groove, and the step is designed to be high inside and low outside, so that the waterproof rubber mat is tightly attached to the annular mounting groove, and the waterproof effect is good.
Description
Technical Field
The utility model belongs to the technical field of building construction, and particularly relates to a waterproof device for a connecting bolt hole.
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 pipe piece is used, a plurality of prefabricated pipe pieces need to be spliced through bolt connection, and in order to increase the connection sealing effect, bolt washers are usually added during bolt connection.
At present, the shield tunnel segment bolt gasket in China is mainly a metal gasket, and the gasket is in the form of a flat gasket, a spring gasket, a wave gasket, a tooth-shaped gasket and the like, wherein the flat gasket is the most common. The main functions of the gasket include "decompression", "friction increase", "sealing" and "fixing". In the shield tunnel, avoid the local pressure-bearing of section of jurisdiction too big through adding at bolt spiral shell head and nut department and establish the packing ring to can compress tightly the waterproof sealing washer of bolt hole department, prevent that the fit-up gap between bolt and the bolt hole from seeping water.
However, in the prior art, the joint of the gasket and the duct piece is not tightly attached, and the water seepage condition still exists, so that potential safety hazards are brought to the construction of the tunnel pipe gallery.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a waterproof device for a connecting bolt hole, which mainly solves the problem of poor waterproof effect of the existing pipe piece connecting bolt hole.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
a waterproof device for a connecting bolt hole comprises a duct piece connecting hole, a connecting bolt, an annular mounting groove formed in the end face of the duct piece connecting hole, a waterproof rubber mat mounted in the annular mounting groove, and a gasket, wherein one end of the gasket is attached to the waterproof rubber mat, and the other end of the gasket is attached to the lower end of a nut of the connecting bolt; the lower terminal surface of waterproof cushion sets up to the echelonment, and the step of echelonment is high outside low in the face, the up end of waterproof cushion is provided with a plurality of annular recesses and a plurality of locating flange along waterproof cushion circumference equipartition.
Further, in the utility model, a plurality of steps matched with the ladder shape of the lower end face of the waterproof rubber mat are arranged in the annular mounting groove.
Further, in the utility model, the lower end face of the gasket is provided with a sealing flange corresponding to the annular groove on the upper end face of the waterproof rubber gasket.
Further, in the utility model, the lower end face of the gasket is also provided with a positioning groove corresponding to the positioning flange.
Further, in the present invention, the waterproof rubber mat is made of ethylene propylene diene monomer.
Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, the waterproof rubber mat is additionally arranged between the gasket and the duct piece, the annular mounting groove is formed in the end face of the duct piece, the step is arranged in the annular mounting groove, and the step is designed to be high inside and low outside, so that the waterproof rubber mat is tightly attached to the annular mounting groove, and the waterproof effect is good. Meanwhile, the lower end face of the waterproof rubber gasket is provided with a step shape matched with the step in the annular mounting groove, and the lower end face of the waterproof rubber gasket is provided with a groove and a positioning flange which correspond to the sealing flange and the positioning groove of the lower end face of the gasket. Therefore, no matter the gasket and the waterproof rubber mat are adopted, the sealing effect between the waterproof rubber mat and the duct piece is better, and the waterproof effect of the whole bolt connecting hole is also better.
Drawings
Fig. 1 is a schematic cross-sectional structure of the present invention.
Fig. 2 is a schematic diagram of a portion of the exploded structure of fig. 1.
Fig. 3 is a top view of the waterproof rubber mat of the present invention.
Fig. 4 is a schematic cross-sectional view of the waterproof rubber mat of the present invention.
Fig. 5 is a schematic structural view of the gasket of the present invention.
Wherein, the names corresponding to the reference numbers are:
1-annular mounting groove, 2-waterproof rubber pad, 3-gasket, 4-groove, 5-positioning flange, 6-step, 7-sealing flange and 8-positioning groove.
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 5, the waterproof device for the connecting bolt hole disclosed by the utility model comprises a duct piece connecting hole, a connecting bolt, an annular mounting groove 1 formed in the end surface of the duct piece connecting hole, a waterproof rubber mat 2 mounted in the annular mounting groove 1, and a gasket 3, one end of which is attached to the waterproof rubber mat 2, and the other end of which is attached to the lower end of a nut of the connecting bolt; the lower terminal surface of waterproof cushion 2 sets up to the echelonment, and the step of echelonment is high outside low, the up end of waterproof cushion 2 is provided with a plurality of annular recesses 4 and follows a plurality of locating flange 5 of waterproof cushion circumference equipartition. The waterproof rubber pad 2 is made of ethylene propylene diene monomer rubber, the ethylene propylene diene monomer rubber is a water-swelling rubber material, and water resistance is enhanced by using dual functions of compaction and swelling.
And a plurality of steps 6 matched with the ladder shape of the lower end face of the waterproof rubber mat 2 are arranged in the annular mounting groove 1. The steps are also set to be high inside and low outside, so that the steps are tightly matched with the lower end face of the waterproof rubber cushion 2.
In the utility model, the lower end face of the gasket 3 is provided with a sealing flange 7 corresponding to an annular groove on the upper end face of the waterproof rubber gasket 2. The lower end face of the gasket 3 is also provided with a positioning groove 8 corresponding to the positioning flange 5, and the waterproof rubber mat is attached to the gasket more tightly due to the design.
According to the utility model, the waterproof rubber mat is additionally arranged between the gasket and the duct piece, the annular mounting groove is formed in the end face of the duct piece, the step is arranged in the annular mounting groove, and the step is designed to be high inside and low outside, so that the waterproof rubber mat is tightly attached to the annular mounting groove, and the waterproof effect is good. Meanwhile, the lower end face of the waterproof rubber gasket is provided with a step shape matched with the step in the annular mounting groove, and the lower end face of the waterproof rubber gasket is provided with a groove and a positioning flange which correspond to the sealing flange and the positioning groove of the lower end face of the gasket. Therefore, no matter the gasket and the waterproof rubber mat are adopted, the sealing effect between the waterproof rubber mat and the duct piece is better, and the waterproof effect of the whole bolt connecting hole is also better. 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. A waterproof device for a connecting bolt hole comprises a duct piece connecting hole and a connecting bolt, and is characterized by also comprising an annular mounting groove (1) arranged on the end face of the duct piece connecting hole, a waterproof rubber mat (2) arranged in the annular mounting groove (1), and a gasket (3) with one end attached to the waterproof rubber mat (2) and the other end attached to the lower end of a nut of the connecting bolt; the lower terminal surface of waterproof cushion (2) sets up to the echelonment, and the step of echelonment is high outside low, the up end of waterproof cushion (2) is provided with a plurality of annular recesses (4) and follows a plurality of locating flange (5) of waterproof cushion circumference equipartition.
2. The waterproof device for the connecting bolt hole according to claim 1, characterized in that a plurality of steps (6) matched with the steps of the lower end face of the waterproof rubber gasket (2) are arranged in the annular mounting groove (1).
3. A water-proofing device for connection bolt holes according to claim 2, characterized in that the lower end face of the gasket (3) is provided with a sealing flange (7) corresponding to an annular groove of the upper end face of the water-proofing rubber gasket (2).
4. A connecting bolt hole flashing device according to claim 3, wherein the lower end surface of the gasket (3) is further provided with a positioning groove (8) corresponding to the positioning flange (5).
5. A water-proofing device for connecting bolt holes according to claim 4, characterized in that the water-proofing rubber gasket (2) is made of ethylene propylene diene monomer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122091293.7U CN215861260U (en) | 2021-08-31 | 2021-08-31 | Waterproof device for connecting bolt hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122091293.7U CN215861260U (en) | 2021-08-31 | 2021-08-31 | Waterproof device for connecting bolt hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215861260U true CN215861260U (en) | 2022-02-18 |
Family
ID=80246364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122091293.7U Active CN215861260U (en) | 2021-08-31 | 2021-08-31 | Waterproof device for connecting bolt hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215861260U (en) |
-
2021
- 2021-08-31 CN CN202122091293.7U patent/CN215861260U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107435548A (en) | A kind of waterproof structure of shield tunnel segment seam and its construction method | |
| CN215861260U (en) | Waterproof device for connecting bolt hole | |
| CN209786761U (en) | Antifriction sealing assembly for assembling prefabricated jacking pipes | |
| CN218386642U (en) | Wall-penetrating waterproof structure of cable well | |
| CN111577993A (en) | Pipeline wall-penetrating fixing device based on building | |
| CN209907415U (en) | Vertical jacking opening device for jacking pipe | |
| CN215053224U (en) | Basement waterproof structure | |
| CN212251495U (en) | Concrete pond underwater equipment installation device | |
| CN219221502U (en) | Waterproof structure for installing rear hole casing of basement outer wall | |
| CN210003453U (en) | Rainproof device of tower, tower and wind generating set | |
| CN209586399U (en) | A kind of underground pipe gallery shield-tunneling construction waterproof construction | |
| CN209874001U (en) | Civil air defense engineering drainage device | |
| CN212273308U (en) | Lining for connecting assembled corrugated pipe and connecting structure thereof | |
| CN212717961U (en) | Double-layer water stop ring device for pipe jacking construction | |
| CN215673980U (en) | Wall bushing | |
| CN214037159U (en) | Go out roofing and reserve bushing structure | |
| CN217208191U (en) | Rainwater sewage sludge pipe joint seal structure | |
| CN215870706U (en) | Waterproof device for power line pipes | |
| CN219690693U (en) | Seepage-proof joint for inspection well and concrete spigot-and-socket pipe | |
| CN217583485U (en) | Basement flexible waterproof sleeve | |
| CN216892422U (en) | Passive packer structure with excellent sealing performance | |
| CN212839736U (en) | Reinforced concrete roof pipe structure | |
| CN221193607U (en) | Prefabricated assembled drainage inspection shaft | |
| CN216555725U (en) | Waterproof structure of through-wall pipeline | |
| CN215860235U (en) | Waterproof device for joint of pipe sheet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |