Waterproof sealing structure of underground excavation contact channel
By setting circumferential and longitudinal mounting holes on the connecting channel pipe sections, and utilizing a combination of springs and gaskets as well as compression protrusions, the problem of water leakage caused by loose bent bolts was solved, achieving efficient sealing of the connecting channel.
Patent Information
- Application Number
- CN202520657093.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-04-09
AI Technical Summary
The existing connecting channels are prone to loosening at the bent bolt connections, which reduces the effectiveness of the sealing rings and makes them prone to water leakage.
The connecting channel pipe sections connected by bent bolts are provided with circumferential and longitudinal mounting holes, through which bent bolts are connected. The sealing gasket is always compressed and deformed by the combination of first and second springs and gaskets. Combined with the compression pad and compression protrusion, a firm seal is achieved between the pipe sections.
It effectively avoids water leakage caused by loose bent bolts, ensures a sealing effect, and the installation process is simple and efficient.
Smart Images
Figure CN223781449U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a communication passage sealing technical field, concretely is a waterproof sealing structure of excavation communication passage. BACKGROUND
[0002] With the development of social economy, more and more subway lines are built in the city, and at present, the shallow burying and excavation construction method is mainly used in subway tunnel engineering, and the shallow burying and excavation engineering is always the project with most difficulties and biggest risk in the process of subway tunnel construction. As a key link of shallow burying and excavation engineering, the communication passage is an escape passage in the middle of the tunnel, and is an important disaster prevention facility of interval tunnel, and generally, one communication passage is set every 600 meters in the subway tunnel.
[0003] The existing communication passage adopts the way of being assembled into a ring, the pipe joints are connected by bent bolts, and sealing rings are used for sealing, but the connection of the bent bolt is prone to loosening, which causes the use effect of the sealing sealing ring to decrease, and water seepage phenomenon is prone to occur. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a waterproof sealing structure of excavation communication passage to solve the problem that the connection of the bent bolt is prone to loosening, which causes the use effect of the sealing sealing ring to decrease, and water seepage phenomenon is prone to occur.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme, a waterproof sealing structure of excavation communication passage: including communication passage pipe joint, the surface of communication passage pipe joint is provided with annular installation hole, the surface of communication passage pipe joint is provided with longitudinal installation hole, the surface of annular installation hole and longitudinal installation hole is connected with bent bolt through hole, the surface of bent bolt is fixedly connected with first spring, the surface of first spring is fixedly connected with first gasket, the surface of bent bolt is threadedly connected with nut, the surface of nut is fixedly connected with second spring, the surface of second spring is fixedly connected with second gasket, the surface of annular installation hole and longitudinal installation hole is fixedly connected with sealing washer, the surface of communication passage pipe joint is fixedly connected with extrusion pad, the surface of communication passage pipe joint is fixedly connected with connecting block, the surface of connecting block is fixedly connected with extrusion lug.
[0006] Preferably, the two sides of the annular installation hole and the longitudinal installation hole are provided with installation grooves, and the bent bolt is connected to the annular installation hole and the longitudinal installation hole through the installation grooves of the annular installation hole and the longitudinal installation hole.
[0007] Preferably, the nut can penetrate the ring-shaped mounting hole of the two groups of communication channel pipe sections at the same time, and can also penetrate the longitudinal mounting hole of the two groups of communication channel pipe sections at the same time, and the nut cooperates with the bent bolt to restrict the two groups of communication channel pipe sections together.
[0008] Preferably, the elastic force of the first spring acts on the first gasket which is slidingly connected on the surface of the bent bolt, and the first gasket extrudes the sealing washer on the surface of the communication channel pipe section.
[0009] Preferably, the elastic force of the second spring acts on the second gasket which is slidingly connected on the surface of the bent bolt, and the second gasket extrudes the sealing washer on the surface of the communication channel pipe section.
[0010] Preferably, the connecting side of the communication channel pipe section is provided with a rectangular groove, and the extrusion pad and the connecting block are fixedly connected on the rectangular groove of the communication channel pipe section, and the height of the extrusion pad is greater than the height of the rectangular groove.
[0011] Preferably, the surface of the extrusion pad is provided with an extrusion groove, the volume of the extrusion convex block is greater than the volume of the extrusion groove of the extrusion pad, and the extrusion convex block extrudes the extrusion groove area of the extrusion pad on the rectangular groove of the communication channel pipe section.
[0012] Compared with the prior art, the utility model has the advantages of:
[0013] 1. The sealing structure, the bent bolt is connected in the ring-shaped mounting hole or the longitudinal mounting hole, the nut cooperates with the bent bolt and restricts the two groups of communication channel pipe sections together, when the bent bolt is loose in the ring-shaped mounting hole or the longitudinal mounting hole, the first gasket can extrude the sealing washer and deform by the elastic force of the first spring all the time, the ring-shaped mounting hole and the longitudinal mounting hole on the side of the first spring are sealed, the second gasket extrudes the sealing washer and deforms by the elastic force of the second spring all the time, the ring-shaped mounting hole and the longitudinal mounting hole on the side of the second spring are sealed, the sealing effect of the bent bolt connection is guaranteed, and the water seepage caused by the loosening of the bent bolt is avoided.
[0014] 2. The sealing structure, when the two groups of communication channel pipe sections are connected, the extrusion pad directly enters the rectangular groove of the other group of communication channel pipe sections, the connecting block on the rectangular groove of the other group of communication channel pipe sections drives the extrusion convex block to extrude the extrusion groove of the extrusion pad, at this moment, the extrusion convex block extrudes the extrusion groove of the extrusion pad, and the extrusion convex block is deformed to tightly adhere to the connection between the two groups of communication channel pipe sections, the extrusion convex block seals the two groups of communication channel pipe sections at this moment, so that the sealing structure is time-saving and labor-saving during installation. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1The structure front view schematic diagram of the utility model is shown in the figure.
[0016] Figure 2 The structure front view schematic diagram of the utility model is shown in the figure.
[0017] Figure 3 The structure front view schematic diagram of the utility model is shown in the figure.
[0018] Figure 4 The structure front view schematic diagram of the utility model is shown in the figure.
[0019] Figure 5 The structure front view schematic diagram of the utility model is shown in the figure.
[0020] In the figure: 1, connecting channel pipe section; 11, annular mounting hole; 12, longitudinal mounting hole; 2, bent bolt; 21, first spring; 22, first gasket; 23, nut; 24, second spring; 25, second gasket; 26, sealing washer; 3, extruded pad; 31, connecting block; 32, extruded protrusion. DETAILED DESCRIPTION
[0021] Please refer to Figures 1-5 The utility model provides an embodiment:
[0022] A waterproof sealing structure of a cut-and-cover connecting channel: connecting channel pipe section 1 is provided with annular mounting hole 11 on the surface, connecting channel pipe section 1 is provided with longitudinal mounting hole 12 on the surface, annular mounting hole 11 and longitudinal mounting hole 12 are connected with bent bolt 2 on the surface, bent bolt 2 is fixedly connected with first spring 21 on the surface, first spring 21 is fixedly connected with first gasket 22 on the surface, bent bolt 2 is threadedly connected with nut 23 on the surface, nut 23 is fixedly connected with second spring 24 on the surface, second spring 24 is fixedly connected with second gasket 25 on the surface, annular mounting hole 11 and longitudinal mounting hole 12 are fixedly connected with sealing washer 26 on the surface, connecting channel pipe section 1 is fixedly connected with extruded pad 3 on the surface, connecting channel pipe section 1 is fixedly connected with connecting block 31 on the surface, connecting block 31 is fixedly connected with extruded protrusion 32 on the surface, the sealing mechanism uses two elastic mechanisms of first spring 21 and second spring 24 to limit the position of first gasket 22 and second gasket 25, guarantees that first gasket 22 and second gasket 25 can extrude sealing washer 26 all the time, and then guarantees the sealing effect of bent bolt 2 at the connecting place of connecting channel pipe section 1, avoids the occurrence of water seepage caused by the loosening of bent bolt 2, simultaneously, the connecting place between connecting channel pipe section 1 adopts extruded protrusion 32 to extrude extruded pad 3, makes the connecting place between connecting channel pipe section 1 be sealed after the deformation of extruded pad 3, thereby forming the sealing of connecting channel pipe section 1, so that the sealing structure is installed time-savingly and labor-savingly.
[0023] Further, the two sides of the ring installation hole 11 and the longitudinal installation hole 12 are provided with installation grooves, the bent bolt 2 is connected to the ring installation hole 11 and the longitudinal installation hole 12 through the installation grooves of the ring installation hole 11 and the longitudinal installation hole 12, and the bent bolt 2 is used to limit the positions between the multiple groups of communication channel pipe joints 1.
[0024] Further, the nut 23 penetrates the ring installation hole 11 of the two groups of communication channel pipe joints 1 at the same time, and can also penetrate the longitudinal installation hole 12 of the two groups of communication channel pipe joints 1 at the same time, the nut 23 cooperates with the bent bolt 2 to limit the two groups of communication channel pipe joints 1 together, so that the installation between the multiple groups of communication channel pipe joints 1 is realized, and the water source can leak through the ring installation hole 11 and the longitudinal installation hole 12, and the phenomenon of water source leakage is avoided through the extrusion of the sealing washer 26.
[0025] Further, the elastic force of the first spring 21 acts on the first gasket 22, the first gasket 22 is slidingly connected to the surface of the bent bolt 2, the first gasket 22 extrudes the sealing washer 26 on the surface of the communication channel pipe joint 1, and when the bent bolt 2 is loose, the elastic force of the first spring 21 acts on the first gasket 22, so that the ring installation hole 11 and the longitudinal installation hole 12 on one side of the first spring 21 cannot leak.
[0026] Further, the elastic force of the second spring 24 acts on the second gasket 25, the second gasket 25 is slidingly connected to the surface of the bent bolt 2, the second gasket 25 extrudes the sealing washer 26 on the surface of the communication channel pipe joint 1, and when the bent bolt 2 is loose, the elastic force of the second spring 24 acts on the second gasket 25, so that the ring installation hole 11 and the longitudinal installation hole 12 on one side of the second spring 24 cannot leak.
[0027] Further, a rectangular groove is formed on the connecting side of the communication channel pipe joint 1, the extrusion pad 3 and the connecting block 31 are fixedly connected to the rectangular groove of the communication channel pipe joint 1 respectively, and the height of the extrusion pad 3 is greater than the height of the rectangular groove, at this time, the periphery of the extrusion pad 3 contacts the connecting part between the two groups of communication channel pipe joints 1, at this time, the extrusion pad 3 is extruded to seal the connecting part of the two groups of communication channel pipe joints 1, and the extrusion pad 3, the connecting block 31 and the extrusion protrusion 32 are provided with two groups, so as to guarantee the sealing effect between the two groups of communication channel pipe joints 1.
[0028] Further, the surface of the extrusion pad 3 is provided with an extrusion groove, the volume of the extrusion protrusion 32 is greater than that of the extrusion groove of the extrusion pad 3, and the extrusion protrusion 32 extrudes the extrusion groove area of the extrusion pad 3 on the rectangular groove of the communication passage pipe section 1. At this time, the periphery of the extrusion pad 3 is deformed, so that the extrusion pad 3 is extruded at the joint between the two groups of communication passage pipe sections 1, thereby forming a seal between the two groups of communication passage pipe sections 1.
[0029] Working principle: The bent bolt 2 is connected to the ring mounting hole 11 or the longitudinal mounting hole 12 through a hole, and the nut 23 cooperates with the bent bolt 2 to restrict the two groups of communication passage pipe sections 1 together. When the bent bolt 2 is loose on the ring mounting hole 11 or the longitudinal mounting hole 12, the first spring 21 can always extrude the sealing washer 26 to deform the first gasket 22 through the elastic force, and seal the ring mounting hole 11 and the longitudinal mounting hole 12 on one side of the first spring 21. The second spring 24 can always extrude the sealing washer 26 to deform the second gasket 25 through the elastic force, and seal the ring mounting hole 11 and the longitudinal mounting hole 12 on one side of the second spring 24, thereby ensuring the sealing effect of the connection of the bent bolt 2 and avoiding the water seepage phenomenon caused by the loosening of the bent bolt 2.
[0030] When the two groups of communication passage pipe sections 1 are connected, the extrusion pad 3 directly enters the rectangular groove of the other group of communication passage pipe sections 1, and the connecting block 31 on the rectangular groove of the other group of communication passage pipe sections 1 drives the extrusion protrusion 32 to extrude the extrusion groove of the extrusion pad 3. At this time, the extrusion protrusion 32 extrudes the extrusion groove of the extrusion pad 3, so that the extrusion protrusion 32 is deformed to tightly fit the joint between the two groups of communication passage pipe sections 1. The extrusion protrusion 32 seals the two groups of communication passage pipe sections 1 at this time, so that the sealing structure is installed time-saving and labor-saving.
Claims
1. A waterproof sealing structure for a tunnel constructed under construction, characterized in that: The utility model provides a connecting channel pipe section, the surface of connecting channel pipe section is provided with annular mounting hole, the surface of connecting channel pipe section is provided with longitudinal mounting hole, the surface of annular mounting hole and longitudinal mounting hole is connected with bent bolt through hole, the surface of bent bolt is fixedly connected with first spring, the surface of first spring is fixedly connected with first gasket, the surface of bent bolt is threadedly connected with nut, the surface of nut is fixedly connected with second spring, the surface of second spring is fixedly connected with second gasket, the surface of annular mounting hole and longitudinal mounting hole is fixedly connected with sealing washer, the surface of connecting channel pipe section is fixedly connected with extrusion pad block, the surface of connecting channel pipe section is fixedly connected with connecting block, the surface of connecting block is fixedly connected with extrusion lug.
2. The waterproof sealing structure of a contact gallery according to claim 1, characterized in that: The annular mounting hole and longitudinal mounting hole are provided with mounting grooves on both sides, and the bent bolt is connected to the annular mounting hole and longitudinal mounting hole through the mounting grooves of the annular mounting hole and longitudinal mounting hole.
3. The waterproof sealing structure of a contact gallery according to claim 1, characterized in that: The nut can simultaneously penetrate the annular mounting holes of two groups of connecting channel pipe sections and simultaneously penetrate the longitudinal mounting holes of two groups of connecting channel pipe sections, and the nut cooperates with the bent bolt to restrict the two groups of connecting channel pipe sections together.
4. The waterproof sealing structure of a contact gallery according to claim 1, characterized in that: The elastic force of the first spring acts on the first gasket, the first gasket is slidingly connected to the surface of the bent bolt, and the first gasket extrudes the sealing washer on the surface of the connecting channel pipe section.
5. The waterproof sealing structure of a contact gallery according to claim 1, characterized in that: The elastic force of the second spring acts on the second gasket, the second gasket is slidingly connected to the surface of the bent bolt, and the second gasket extrudes the sealing washer on the surface of the connecting channel pipe section.
6. The waterproof sealing structure of a contact gallery according to claim 1, characterized in that: The connecting side of the connecting channel pipe section is provided with a rectangular groove, the extrusion pad block and the connecting block are fixedly connected to the rectangular groove of the connecting channel pipe section, and the height of the extrusion pad block is greater than the height of the rectangular groove.
7. The waterproof sealing structure of a contact gallery according to claim 1, characterized in that: The surface of the extrusion pad block is provided with an extrusion groove, the volume of the extrusion lug is greater than the volume of the extrusion groove of the extrusion pad block, and the extrusion lug extrudes the extrusion groove area of the extrusion pad block in the rectangular groove of the connecting channel pipe section.