Municipal concrete drainage pipe with earthquake-resistant joint structure
By designing seismic joint structures at the municipal concrete drainage pipe joints, including corrugated connecting pipes and horizontal displacement guide grooves, the problem of existing pipelines being easily damaged during earthquakes is solved, and the flexible connection of the pipeline and the service life are extended.
Patent Information
- Application Number
- CN202420886384.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-26
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-04-26
AI Technical Summary
The existing concrete insertion pipes are rigidly connected, and cannot produce plastic deformation when encountering seismic waves, which can easily cause hard damage to the pipeline joints.
A shock-resistant joint structure is designed, including a tubular body, a flare-shaped connection part at one end, a corrugated connection pipe at one end, a horizontal displacement guide groove and guide block in the connection part, and an annular water stop groove and water stop strip at the end of the pipeline, through these structures, the flexible connection of the pipeline is realized.
When seismic waves come, the pipeline connections change from rigidity to flexibility, reducing the horizontal shear force exposed to concrete drainage pipes, extending the service life of the pipes, and reducing road quality problems.
Smart Images
Figure CN222702817U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a municipal concrete drainage pipeline with an earthquake-resistant joint structure, belonging to the field of municipal drainage engineering. Background Art
[0002] In recent years, with the construction of urbanization, municipal drainage projects have become a top priority and have a great impact on the quality of road projects. Many urban asphalt roads in earthquake zones often have quality problems such as bulges and cracks. In today's municipal drainage projects, the drainage pipes under the main roads are all made of concrete socket pipes. This pipe connection method is a rigid connection. When encountering earthquake waves, the joints between the two pipes cannot produce plastic deformation, which can easily cause hard damage to the pipe joints, resulting in seepage and leakage. The drainage invades the roadbed soil, increasing the water content of the roadbed soil and expanding the volume, exerting expansion force on the road base and surface layer, thereby damaging the road surface layer. Utility Model Content
[0003] The technical problem to be solved by the utility model is that the existing concrete socket pipe adopts a rigid connection. When encountering seismic waves, the joint between the two pipes cannot produce plastic deformation, which easily causes hard damage to the pipe joint.
[0004] The technical solution adopted by the utility model to solve its technical problems is: a municipal concrete drainage pipe with an earthquake-resistant joint structure, comprising a tubular body, one end of the body is provided with a trumpet-shaped connecting part, the other end of the body is provided with a corrugated connecting pipe adapted to the inner wall of the body, the inner wall of the connecting part is provided with a horizontal displacement guide groove, and an adapted horizontal displacement guide block is provided at the end of the body away from the connecting part.
[0005] Wherein, an annular water stop groove is arranged on the inner wall of the main body near the connecting portion in the above structure.
[0006] Furthermore, an annular water stop strip is provided on the outer wall of the corrugated connecting pipe in the above structure.
[0007] Among them, the horizontal displacement guide grooves in the above structure are two and are evenly spaced around the circumference.
[0008] Wherein, the connecting portion in the above structure is a hollow truncated cone structure.
[0009] Wherein, the connection portion in the above structure may be filled with gap filling material.
[0010] The beneficial effects of the utility model are as follows: the structure is provided with a horizontal displacement guide groove at the joint position of the concrete pipe, the front and rear pipes are connected through the horizontal displacement guide groove and the horizontal displacement guide block, a section of corrugated connecting pipe with plasticity is provided at the end of the pipe, a circle of annular water stop strip is provided at the end of the corrugated connecting pipe, and the annular water stop strip is embedded in the annular water stop groove provided in the head end of the concrete pipe to form a closed loop. In this way, the problem that the connection between pipes changes from rigid to flexible when an earthquake wave comes can be solved, the horizontal shear force on the concrete drainage pipe when an earthquake wave comes can be reduced, the service life of the concrete drainage pipe can be increased, and the quality problem of the road surface can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic diagram of the main body structure of the utility model.
[0012] Figure 2 It is the main view of the utility model.
[0013] Figure 3 It is the right side view of the main body of the utility model.
[0014] Figure 4 It is a left view of the main body of the utility model.
[0015] Figure 5 It is a schematic diagram of the structure of the utility model after adjacent bodies are connected.
[0016] Figure 6 For this utility model Figure 5 Schematic diagram of the cross-sectional structure.
[0017] Marked in the figure are: 1 is the main body, 11 is the connecting part, 12 is the annular water stop groove, 2 is the gap filling material, 3 is the horizontal displacement guide groove, 4 is the horizontal displacement guide block, 5 is the corrugated connecting pipe, and 51 is the annular water stop strip. DETAILED DESCRIPTION
[0018] The utility model is further described below in conjunction with the accompanying drawings.
[0019] like Figures 1 to 6As shown, a municipal concrete drainage pipe with a seismic joint structure of the utility model comprises a tubular body 1, one end of the body 1 is provided with a bellows-shaped connection part 11, the other end of the body 1 is provided with a corrugated connection pipe 5 adapted to the inner wall of the body 1, the inner wall of the connection part 11 is provided with a horizontal displacement guide groove 3, and the end of the body 1 away from the connection part 11 is provided with an adapted horizontal displacement guide block 4. It can be understood by those skilled in the art that the body 1 of the present structure is provided with a connection part 11 at one end, and a corrugated connection pipe 5 is provided at the other end, and the corrugated connection pipe 5 is preferably a hose structure, and the actual adjacent bodies 1 can be inserted through the corrugated connection pipe 5 to achieve plug-in soft connection and fixation, and the setting of the connection part 11 makes its internal size larger than the other end of the body 1, so as to facilitate the setting of the horizontal displacement guide groove 3 on its inner wall, so that after the adjacent bodies 1 are plugged in, the horizontal displacement guide block 4 at the end of the other body 1 is inserted to achieve axial guidance. It is preferred that the corrugated connection pipe 5 and the body 1 are an integrated structure to ensure the connection strength.
[0020] Preferably, in the above structure, an annular water stop groove 12 is provided on the inner wall of the main body 1 near the connecting portion 11. Those skilled in the art can understand that, in order to ensure that the corrugated connecting pipe 5 is sealed after penetrating into the inner wall of another adjacent main body 1, the present structure preferably provides an annular water stop groove 12 on the inner wall of the main body 1 near the connecting portion 11, so that the annular protrusion on the outer side of the corrugated connecting pipe 5 can be inserted into the annular water stop groove 12 to achieve sealing.
[0021] Preferably, an annular water stop strip 51 is provided on the outer wall of the corrugated connecting pipe 5 in the above structure. Those skilled in the art can understand that, in order to further ensure the sealing effect, the present structure actually preferably provides an annular water stop strip 51 on the outer wall of the corrugated connecting pipe 5, and the shape and size of the annular water stop strip 51 should be compatible with the annular water stop groove 12, and the sealing is actually achieved by the clamping of the annular water stop strip 51 and the annular water stop groove 12.
[0022] Preferably, the number of the horizontal displacement guide grooves 3 in the above structure is two, and they are evenly spaced around the circumference. It can be understood by those skilled in the art that, in order to achieve soft connection between adjacent bodies 1 and axial guidance at the same time, the structure preferably has two horizontal displacement guide grooves 3, and the number of horizontal displacement guide blocks 4 and annular water stop grooves 12 corresponds one to one, and the horizontal displacement guide blocks 4 are actually inserted into the annular water stop groove 12. It is actually preferred that the annular water stop grooves 12 are evenly spaced around the circumference.
[0023] Preferably, the connection part 11 in the above structure is a hollow truncated cone structure. Those skilled in the art will appreciate that, in order to facilitate the integrated manufacturing with the body 1, it is actually preferred that the connection part 11 is a hollow truncated cone structure.
[0024] Preferably, the connection part 11 in the above structure may be filled with gap filling material 2. Those skilled in the art will appreciate that, in order to ensure that the structure of the connection is sealed after the adjacent bodies 1 are connected, the device further preferably fills the connection part 11 with gap filling material 2, so that the gap between the outer wall of the body 1 and the inner wall of the connection part 11 is sealed by the gap filling material 2 after the bodies 1 are plugged in.
Claims
1. A municipal concrete drainage pipe with a seismic joint structure, comprising a tubular body (1), characterized in that: A bell-shaped connecting portion (11) is provided at one end of the body (1), a corrugated connecting pipe (5) adapted to the inner wall of the body (1) is provided at the other end of the body (1), a horizontal displacement guide groove (3) is provided on the inner wall of the connecting portion (11), and an adapted horizontal displacement guide block (4) is provided at the end of the body (1) away from the connecting portion (11).
2. A municipal concrete drainage pipe with a seismic joint structure according to claim 1, characterized in that: An annular water stop groove (12) is provided on the inner wall of the main body (1) close to the connecting portion (11).
3. The municipal concrete drainage pipe with a seismic joint structure according to claim 2, characterized in that: An annular water stop strip (51) is provided on the outer wall of the corrugated connecting pipe (5).
4. The municipal concrete drainage pipe with a seismic joint structure according to claim 1, characterized in that: There are two horizontal displacement guide grooves (3), which are evenly spaced and arranged around the circumference.
5. The municipal concrete drainage pipe with a seismic joint structure according to claim 1, characterized in that: The connecting portion (11) is a hollow truncated cone structure.
6. The municipal concrete drainage pipe with a seismic joint structure according to claim 1, characterized in that: The connection portion (11) may be filled with gap filling material (2).