CN220647103U - Waterproof structure of precast concrete pipe joint interface - Google Patents
Waterproof structure of precast concrete pipe joint interface Download PDFInfo
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- CN220647103U CN220647103U CN202322388896.2U CN202322388896U CN220647103U CN 220647103 U CN220647103 U CN 220647103U CN 202322388896 U CN202322388896 U CN 202322388896U CN 220647103 U CN220647103 U CN 220647103U
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- sealing ring
- groove group
- joint section
- precast concrete
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- 239000011178 precast concrete Substances 0.000 title claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 83
- 210000001503 joint Anatomy 0.000 claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 238000010276 construction Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 10
- 230000000694 effects Effects 0.000 description 12
- 238000009434 installation Methods 0.000 description 4
- 239000004567 concrete Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
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Abstract
The joint waterproof structure of the precast concrete pipe joint comprises joints between the end parts of two adjacent pipe joints, wherein the joints comprise an external joint section, a middle joint section and an internal joint section which are sequentially connected from the outer side to the inner side of the pipe joint, the external joint section, the middle joint section and the internal joint section are respectively provided with an outer groove group, a middle groove group and an inner groove group, and an outer sealing ring, a middle sealing ring and an inner sealing ring are respectively arranged in the outer groove group, the middle groove group and the inner groove group; the outer groove group, the middle groove group and the inner groove group are formed by two grooves which are respectively arranged at the end parts of the two pipe sections. The utility model is easier to locate between two pipe joints when being assembled, the pipe joints are not easy to generate dislocation, the waterproof structure is more stable, the sealing rings are arranged at the three joints through the grooves, the triple waterproof function is realized, the joint waterproof capability between the precast concrete pipe joints can be obviously improved, the elasticity is good, the process is simple, the added cost is low, and the utility model belongs to the technical field of pipeline waterproof.
Description
Technical Field
The utility model relates to the technical field of pipeline waterproofing, in particular to a waterproof structure of a prefabricated concrete pipe joint interface.
Background
In the construction of water-rich stratum pipelines, the water resistance problem at the joint of the pipe joint needs to be considered. The common pipeline waterproof structure sets up one to waterproof close gasket or stagnant water rubber strip in the inboard of tube coupling interface windward side, but this kind of structure has great shortcoming: firstly, the joint is easy to have low fitting degree or interface dislocation due to the problem of an interface structure, and the sealing gasket is also likely to have uneven or local peeling problem; secondly, the inner caulking joint only plays a role in drainage, cannot resist water pressure and has poor sealing effect; thirdly, better process technology is needed, the caulking requires on-site operation of workers, and the waterproof performance of the pipeline can be influenced by the pasting process and construction collision of the workers.
Disclosure of Invention
Aiming at the technical problems existing in the prior art, the utility model aims at: the waterproof structure of the prefabricated concrete pipe joint interface is good in waterproof effect and easy to assemble.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the joint waterproof structure of the precast concrete pipe joint comprises joints between the end parts of two adjacent pipe joints, wherein the joints comprise an external joint section, a middle joint section and an internal joint section which are sequentially connected from the outer side to the inner side of the pipe joint, the external joint section, the middle joint section and the internal joint section are respectively provided with an outer groove group, a middle groove group and an inner groove group, and an outer sealing ring, a middle sealing ring and an inner sealing ring are respectively arranged in the outer groove group, the middle groove group and the inner groove group; the outer groove group, the middle groove group and the inner groove group are respectively formed by two grooves which are respectively arranged at the end parts of the two pipe sections; when the joint is cut along the plane of the axis of the pipe joint, a first included angle of non-flat angle is formed between the external joint section and the middle joint section, and a second included angle of non-flat angle is formed between the internal joint section and the middle joint section.
After adopting this kind of structure, this kind of syllogic seam makes the assembly between two tube coupling more fix a position, and the tube coupling is difficult for taking place the dislocation, makes waterproof construction more stable, and three seam departments all install the sealing washer through the recess, realizes triple waterproof function, makes the water-proof effects better.
Preferably, the pipe joint is a circular pipe, and the external joint section, the middle joint section and the internal joint section are all circular. After adopting this kind of structure, annular waterproof structure can carry out comprehensive waterproof.
Preferably, when the joint is cut along a plane in which the axial direction of the pipe joint is located, the external joint section and the internal joint section are perpendicular to the axial line of the pipe joint, and the first included angle and the second included angle are obtuse angles. After the structure is adopted, the pipe joint assembling construction is convenient.
Preferably, one side of the outer sealing ring, the middle sealing ring and the inner sealing ring is adhered to the bottom of the groove respectively. After the structure is adopted, the outer sealing rubber ring can be stuck in the prefabrication process of the pipe joint connector, and the construction process can be simplified.
As one preferable mode, the number of the outer sealing rings is two, in the outer groove group, the sections of the two grooves are trapezoidal, the bottom width of each groove is smaller than the opening width of each groove, the shape of each outer sealing ring is matched with the shape of each groove, and the thickness of each outer sealing ring is larger than the depth of each groove. After the structure is adopted, the outer sealing rings form a first waterproof structure, the thickness of the outer sealing rings is slightly higher than the depth of the grooves, the sealing rings at two sides can be fully extruded and closely attached, the trapezoidal section is formed by fully utilizing the characteristic of large deformation of the sealing rings after extrusion, the deformed sealing rings further fill the side inner cavity, the waterproof structure is tighter, the bearing water pressure is increased, even if the concrete adhesion performance is poor after the pipe joint is assembled and constructed, the rebound deformation of the rubber rings can still keep mutual compression within a certain seam width range, the two outer sealing rings are compressed and deformed when the pipe joint interface joint with a certain waterproof effect is achieved, the grooves can be filled up to achieve the sealing effect, and the waterproof effect of the pipeline is realized.
Preferably, the cross section of the middle sealing ring is semicircular, and two sides of the middle sealing ring respectively prop against the bottoms of two grooves of the middle groove group. After the structure is adopted, the middle sealing ring forms a second waterproof structure.
Preferably, the inner seal ring is a Y-seal ring. After the structure is adopted, the Y-shaped sealing ring is used as a third waterproof structure.
Preferably, the inner sealing ring comprises a supporting ring, one end of the supporting ring is connected with an inner lip and an outer lip, a notch is formed between one side of the inner lip and one side of the outer lip, the other side of the inner lip is a plane, the other side of the outer lip is an arc-shaped surface, the plane and the arc-shaped surface respectively prop against the bottoms of two grooves of the inner groove group, and the height of the inner lip is higher than that of the outer lip. After the structure is adopted, if the first waterproof structure and the second waterproof structure have problems, the arc-shaped notch in the center of the cross section of the sealing ring has larger compression and expansion deformation capacity. The adaptability to joint changes is stronger, and the recess of indent group is the rectangle simultaneously, and rectangle fillet inner chamber makes the rubber circle after the installation more stable, and the leakproofness is good, and water pressure resistance is high.
Preferably, the outer seal ring, the middle seal ring and the inner seal ring are all made of rubber. After the structure is adopted, the sealing ring has large extrusion deformation, is more waterproof, has low cost and good durability.
Preferably, the material of the middle sealing ring is an expansion water stop strip. After the structure is adopted, if the first waterproof structure is problematic, water flows to the inclined joint, the expansion water stop strip expands after meeting water, and the inner cavity is further filled, so that the sealing water stop effect is achieved. When the expansion water stop strip expands in water, the water stop strip can not only fill up the gaps of the middle groove group, but also fill up all irregular surfaces, holes and gaps of the joints, and simultaneously generate huge contact pressure, has the function of resisting water pressure, and thoroughly prevents leakage. When the seam is displaced, and the gap exceeds the elastic range of the material, the middle sealing ring can also stop water through water absorption expansion, so that the waterproof effect is good, and the waterproof device can adapt to abnormal conditions such as seam displacement.
In general, the utility model has the following advantages: the groove groups are arranged at the joints and are matched with the sealing rings to form three waterproof barriers, so that the waterproof effect of the joint joints of the pipe is obviously improved. The outside seam, the middle seam and the inside seam are combined to form a limiting structure, so that the joint fitting degree of the pipe joint can be improved, and the problem of dislocation of the joint is solved. The sealing rubber ring can be adhered before construction, the sealing rubber ring is not needed to be adhered during construction, only the pipe joint interfaces are needed to be jointed, the process flow of site construction can be simplified to a great extent, in addition, the process effect is guaranteed, various unexpected conditions are easy to occur during site construction, the process effect is poor, the sealing rubber ring is adhered to the prefabricated links of the pipe joint interfaces, the factors affecting the adhering quality are few, the quality supervision is easy to realize, and the whole structure is only prefabricated by factories, so that the process is simple, the installation is convenient, and the efficiency is high.
Drawings
Fig. 1 is a schematic view of a part of a waterproof structure of a precast concrete pipe joint connector before assembly.
Fig. 2 is a schematic view of a part of a waterproof structure of a precast concrete pipe joint interface after assembly.
Fig. 3 is a schematic view of the outer groove set and outer seal ring prior to assembly.
Fig. 4 is a schematic view of an assembled outer groove set and outer seal ring.
Fig. 5 is a schematic view of the intermediate groove set and intermediate seal ring prior to assembly.
Fig. 6 is a schematic view of an assembled intermediate groove set and intermediate seal ring.
Fig. 7 is a schematic view of the inner groove set and inner seal ring prior to assembly.
Fig. 8 is a schematic view of an assembled inner groove set and inner seal ring.
1 is a first pipe joint, 2 is a second pipe joint, 3 is an external joint section, 4 is an intermediate joint section, 5 is an internal joint section, 6 is an outer sealing ring, 7 is an intermediate sealing ring, 8 is an inner sealing ring, 9 is a first outer groove, 10 is a second outer groove, 11 is a first intermediate groove, 12 is a second intermediate groove, 13 is a first inner groove, 14 is a second inner groove, 15 is an outer wall of the pipe joint, and 16 is an inner wall of the pipe joint.
Detailed Description
The utility model will be described in further detail with reference to the drawings and the detailed description.
Example 1
The joint waterproof structure of the precast concrete pipe joint comprises joints between the end parts of two adjacent pipe joints, wherein the joints comprise an external joint section 3, a middle joint section 4 and an internal joint section 5 which are sequentially connected from the outer side to the inner side of the pipe joint, the external joint section, the middle joint section and the internal joint section are respectively provided with an outer groove group, a middle groove group and an inner groove group, and an outer sealing ring 6, a middle sealing ring 7 and an inner sealing ring 8 are respectively arranged in the outer groove group, the middle groove group and the inner groove group; the outer groove group, the middle groove group and the inner groove group are respectively formed by two grooves which are respectively arranged at the end parts of the two pipe sections; when the joint is cut along the plane of the axis of the pipe joint, a first included angle of non-flat angle is formed between the external joint section and the middle joint section, and a second included angle of non-flat angle is formed between the internal joint section and the middle joint section.
The two pipe sections are spliced along the same axis, the pipe sections are shown in fig. 1 before splicing, the pipe sections are spliced, the joints are shown in fig. 2 after splicing, and the joints extend from the outer wall 15 of the pipe sections to the inner wall 16 of the pipe sections. The two pipe joints are precast concrete pipe joints, namely a first pipe joint 1 and a second pipe joint 2, wherein the first pipe joint is an installed pipe joint (fixed in position), and the second pipe joint is a pre-assembled pipe joint.
The three waterproof structures are assembled in the front-back state as shown in fig. 3-8, and three sealing rings are mutually extruded through the first pipe joint and the second pipe joint during assembling to form an inner waterproof line and an outer waterproof line, so that a triple waterproof function is realized.
The pipe joint is a circular pipe, and the external joint section, the middle joint section and the internal joint section are all in circular ring shape.
When the joint is cut along the plane where the axis direction of the pipe joint is located, the external joint section and the internal joint section are perpendicular to the axis of the pipe joint, and the first included angle and the second included angle are obtuse angles.
One side of the outer sealing ring, the middle sealing ring and the inner sealing ring are respectively adhered to the bottom of the groove.
The number of the outer sealing rings is two, in the outer groove group, the sections of the two grooves are trapezoidal, the width of the bottoms of the grooves is smaller than the width of the openings of the grooves, the shape of the outer sealing rings is matched with the shape of the grooves, and the thickness of the outer sealing rings is larger than the depth of the grooves.
The two grooves of the outer groove group are a first outer groove 9 and a second outer groove 10 respectively, and the bottom edges of the first outer groove and the second outer groove are provided with round corners.
The section of the middle sealing ring is semicircular, and two sides of the middle sealing ring respectively prop against the bottoms of two grooves of the middle groove group.
The two grooves of the middle groove group are a first middle groove 11 and a second middle groove 12 respectively, the depth of the first middle groove is slightly larger than that of the second middle groove, one side of the middle sealing ring is a plane side, the other side of the middle sealing ring is an arc-shaped surface side, and the plane side is stuck to the bottom of the first middle groove, so that the expansion sealing strip can be prevented from peeling off due to friction or collision when the second pipe joint approaches in the assembling process.
The inner sealing ring is a Y-shaped sealing ring.
The inner sealing ring comprises a supporting ring, one end of the supporting ring is connected with an inner lip and an outer lip, a notch is formed between one side of the inner lip and one side of the outer lip, the other side of the inner lip is a plane, the other side of the outer lip is an arc-shaped surface, the plane and the arc-shaped surface respectively prop against the bottoms of two grooves of the inner groove group, and the height of the inner lip is higher than that of the outer lip.
The two grooves of the inner groove group are a first inner groove 13 and a second inner groove 14 respectively, the sections of the first inner groove and the second inner groove are rectangular, and the bottom edges are provided with round corners.
The outer sealing ring, the middle sealing ring and the inner sealing ring are all made of rubber.
The middle sealing ring is made of an expansion water stop strip.
The positions of all the grooves can be properly adjusted at the corresponding joints so as to provide enough space for bolts or prestressed channels. The diameter and length of the sealing ring are calculated according to the position of the groove. Before formal installation, the installation and sealing effect can be verified through relevant tests.
The above examples are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present utility model should be made in the equivalent manner, and the embodiments are included in the protection scope of the present utility model.
Claims (10)
1. A precast concrete pipe joint interface waterproof construction, its characterized in that: the pipe joint comprises a joint positioned between the end parts of two adjacent pipe joints, wherein the joint comprises an external joint section, a middle joint section and an internal joint section which are sequentially connected from the outer side to the inner side of the pipe joint, the external joint section, the middle joint section and the internal joint section are respectively provided with an external groove group, a middle groove group and an internal groove group, and an external sealing ring, a middle sealing ring and an internal sealing ring are respectively arranged in the external groove group, the middle groove group and the internal groove group;
the outer groove group, the middle groove group and the inner groove group are respectively formed by two grooves which are respectively arranged at the end parts of the two pipe sections;
when the joint is cut along the plane of the axis of the pipe joint, a first included angle of non-flat angle is formed between the external joint section and the middle joint section, and a second included angle of non-flat angle is formed between the internal joint section and the middle joint section.
2. A precast concrete segment joint waterproof structure according to claim 1, characterized in that: the pipe joint is a circular pipe, and the external joint section, the middle joint section and the internal joint section are all in circular ring shape.
3. A precast concrete segment joint waterproof structure according to claim 1, characterized in that: when the joint is cut along the plane where the axis direction of the pipe joint is located, the external joint section and the internal joint section are perpendicular to the axis of the pipe joint, and the first included angle and the second included angle are obtuse angles.
4. A precast concrete segment joint waterproof structure according to claim 1, characterized in that: one side of the outer sealing ring, the middle sealing ring and the inner sealing ring are respectively adhered to the bottom of the groove.
5. A precast concrete segment joint waterproof structure according to claim 1, characterized in that: the number of the outer sealing rings is two, in the outer groove group, the sections of the two grooves are trapezoidal, the width of the bottoms of the grooves is smaller than the width of the openings of the grooves, the shape of the outer sealing rings is matched with the shape of the grooves, and the thickness of the outer sealing rings is larger than the depth of the grooves.
6. A precast concrete segment joint waterproof structure according to claim 1, characterized in that: the section of the middle sealing ring is semicircular, and two sides of the middle sealing ring respectively prop against the bottoms of two grooves of the middle groove group.
7. A precast concrete segment joint waterproof structure according to claim 1, characterized in that: the inner sealing ring is a Y-shaped sealing ring.
8. A precast concrete segment joint waterproof structure according to claim 7, characterized in that: the inner sealing ring comprises a supporting ring, one end of the supporting ring is connected with an inner lip and an outer lip, a notch is formed between one side of the inner lip and one side of the outer lip, the other side of the inner lip is a plane, the other side of the outer lip is an arc-shaped surface, the plane and the arc-shaped surface respectively prop against the bottoms of two grooves of the inner groove group, and the height of the inner lip is higher than that of the outer lip.
9. A precast concrete segment joint waterproof structure according to claim 1, characterized in that: the outer sealing ring, the middle sealing ring and the inner sealing ring are all made of rubber.
10. A precast concrete segment joint waterproof structure according to claim 1, characterized in that:
the middle sealing ring is made of an expansion water stop strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322388896.2U CN220647103U (en) | 2023-09-01 | 2023-09-01 | Waterproof structure of precast concrete pipe joint interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322388896.2U CN220647103U (en) | 2023-09-01 | 2023-09-01 | Waterproof structure of precast concrete pipe joint interface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220647103U true CN220647103U (en) | 2024-03-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322388896.2U Active CN220647103U (en) | 2023-09-01 | 2023-09-01 | Waterproof structure of precast concrete pipe joint interface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220647103U (en) |
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2023
- 2023-09-01 CN CN202322388896.2U patent/CN220647103U/en active Active
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