CN210617228U - Double-wall corrugated pipe forming die - Google Patents
Double-wall corrugated pipe forming die Download PDFInfo
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- CN210617228U CN210617228U CN201921584793.0U CN201921584793U CN210617228U CN 210617228 U CN210617228 U CN 210617228U CN 201921584793 U CN201921584793 U CN 201921584793U CN 210617228 U CN210617228 U CN 210617228U
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- 230000017525 heat dissipation Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 7
- 238000010276 construction Methods 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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Abstract
The utility model provides a double-wall corrugated pipe forming die, which comprises a first outer die and a second outer die which are provided with arc openings, wherein the arc openings are provided with grooves, a first semicircular arc inner die and a second semicircular arc inner die are arranged in the grooves of the first outer die and the second outer die, the semicircular arc inner die is internally provided with wave crest grooves and wave trough sections which are alternately arranged along the axial direction, the wave crest grooves of the first semicircular arc inner die comprise semicircular annular first pipe grooves, the wave crest grooves of the second semicircular arc inner die comprise semicircular annular second pipe grooves and two third pipe grooves which are arranged on the circumferential wall of the second pipe grooves and are used for forming filling earth backfill dead angles by corrugated pipes, the two third pipe grooves are respectively and symmetrically arranged on two opposite sides of a radial vertical surface of a horizontal tangent plane of the circumference of the second pipe grooves, the bottom surfaces of the third pipe grooves are flush with the horizontal tangent plane of the circumference of the second pipe grooves, the side surfaces of the third pipe grooves connected with the bottom surfaces extend to the circumference of the second pipe, the forming die can form a backfill cavity for filling the earthwork backfill dead angle through the two third pipe grooves.
Description
Technical Field
The utility model belongs to the technical field of bellows mould, especially, relate to a double-walled bellows forming die.
Background
The double-wall corrugated pipe is a novel pipe with an outer wall with an annular structure and a smooth inner wall, has been greatly popularized and applied in developed countries such as Europe and America due to excellent performance and relatively economic manufacturing cost, and is mainly applied to large-scale water delivery, water supply, drainage, pollution discharge, exhaust, subway ventilation, mine ventilation, farmland irrigation and the like with the working pressure below 0.6 MPa.
In certain geographical locations where settlement is a frequent occurrence, the corrugated pipe is installed at a deeper location, requiring better toughness and rigidity of the double-walled corrugated pipe to resist the pressure exerted by the soil. After the corrugated pipe is installed, when earth is backfilled, the groove is backfilled within the range from the bottom foundation part of the pipe to the position 0.7M above the top of the pipe, manual backfilling is required, mechanical bulldozing backfilling is strictly forbidden, dead corners which cannot be backfilled exist when the existing corrugated pipe is placed at the bottom of the groove, the earth is not backfilled tightly, the corrugated pipe is broken, and the construction quality of a pipeline is affected. Therefore, how to design a corrugated pipe mold capable of producing backfill earthwork becomes an urgent problem to be solved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned not enough, provide a double-walled bellows forming die, accessible third chase supplies the bellows to form the supplementary structure outer wall that is used for filling the backfill dead angle at slot, and the horizontal tangent plane setting of bottom surface parallel and level second chase bottom strengthens the stability and the outer wall toughness of bellows simultaneously.
In order to solve the above problems, the specific technical solution of the present invention is as follows:
a double-walled bellows forming die comprising: the inner circles of the first outer mold and the second outer mold form arc-shaped openings, grooves are formed in the surfaces of the arc-shaped openings, a first semicircular arc inner mold is arranged in the grooves of the first outer mold, a second semicircular arc inner mold is arranged in the grooves of the second outer mold, wave crest grooves and wave trough sections which are alternately arranged along the axial direction are formed in the first semicircular arc inner mold and the second outer mold, the wave crest grooves of the first semicircular arc inner mold comprise semicircular annular first pipe grooves, the wave crest grooves of the second semicircular arc inner mold comprise integrally-arranged semicircular annular second pipe grooves and two third pipe grooves which are arranged on the circumferential wall of the second pipe grooves and are used for forming filling earth backfilling dead angles through corrugated pipes, the two third pipe grooves are symmetrically arranged on two opposite sides of a radial vertical surface of a horizontal tangent plane of the circumference of the second pipe grooves respectively, and the bottom surfaces of the third pipe grooves are flush with the horizontal tangent plane of the circumference of the second pipe grooves, and the side surface of the third pipe groove connected with the bottom surface extends to the circumference of the second pipe groove, so that two third pipe grooves form a backfill cavity for filling earthwork backfill dead corners.
Preferably, the groove back surfaces of the first outer die and the second outer die are provided with external connection base bodies, the external connection base bodies are provided with a plurality of connection holes, and the outer walls of the outer dies on two sides of the external connection base bodies are provided with a plurality of heat dissipation ribs arranged at intervals in an upward arrangement mode.
Preferably, the bottom surface and the side surface of the third pipe groove are respectively connected with the wall of the second pipe groove to form two connecting edges, and the included angle between the connecting surface of the two connecting edges and the bottom surface is not less than 20 degrees.
Preferably, the bottom surface and the side surface are arranged to have the same length.
Preferably, the thickness of the third pipe groove is the same as that of the second pipe groove.
Preferably, an included angle formed between the bottom surface and the side surface is arranged in an arc angle.
The utility model provides a double-walled bellows forming die sets up two third chase through the relative both sides of the radial perpendicular of the horizontal tangent plane at the cyclic annular second chase circumference of semicircle, realizes that the double-walled bellows bottom that forming die produced is formed with the packing wall that carries out the packing to the dead angle of backfilling of slot, and the bellows that forms through two third chase supplyes the wall promptly and replaces earthwork to fill the dead angle of backfilling. And the bottom surface of the third pipe groove increases the pressure-bearing area of the produced corrugated pipe in contact with the ground, and the compression resistance toughness of the produced corrugated pipe is ensured to the maximum extent.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of a double-wall corrugated pipe forming mold according to the present invention;
FIG. 2 is a schematic structural view of a second outer mold of FIG. 1;
FIG. 3 is a schematic diagram of the back surface structure of the first outer mold and the second outer mold grooves in FIG. 1;
FIG. 4 is a side view of the first outer mold with the first inner semicircular arc mold of FIG. 1;
FIG. 5 is a side view of a second outer mold with a second inner semi-circular arc mold of FIG. 1;
fig. 6 is a schematic structural diagram of a double-wall corrugated pipe produced by a double-wall corrugated pipe forming mold correspondingly.
Detailed Description
To facilitate understanding of the structure of the present invention, the following description is made with reference to the accompanying drawings and examples.
Fig. 1 is a schematic structural diagram of an embodiment of a double-wall corrugated pipe forming mold shown in the present invention, fig. 2 is a schematic structural diagram of a second outer mold in fig. 1, fig. 3 is a schematic structural diagram of a back surface of a groove of the first outer mold and the second outer mold in fig. 1, fig. 4 is a side view of the first outer mold provided with a first semicircular inner mold in fig. 1, fig. 5 is a side view of the second outer mold provided with a second semicircular inner mold in fig. 1, and fig. 6 is a schematic structural diagram of a double-wall corrugated pipe correspondingly produced by the double-wall corrugated pipe forming mold. As shown in fig. 1 to 6, the utility model provides a double-walled bellows forming die, include: the first outer die 10 and the second outer die 20, the inner circles of the first outer die 10 and the second outer die 20 form an arc opening, the surface of the arc opening is provided with a groove, a first semicircular inner die 11 is arranged in the groove of the first outer die 10, a second semicircular inner die 21 is arranged in the groove of the second outer die 20, and wave crest grooves 30 and wave trough sections 40 which are alternately arranged along the axial direction are arranged in the first semicircular inner die 11 and the second outer die 21.
The peak groove 30 of the first semicircular inner die 11 includes a semicircular annular first pipe groove.
The wave crest groove 30 of the second semicircular inner mold 21 comprises a semicircular annular second pipe groove 211 and two third pipe grooves 212 which are arranged on the circumferential wall of the second pipe groove 211 and are used for forming a filling earthwork refilling dead angle on the double-wall corrugated pipe 80, the two third pipe grooves 212 are respectively and symmetrically arranged on two opposite sides of a radial vertical surface of a horizontal tangent plane of the circumference of the second pipe groove 211, the bottom surface 2121 of each third pipe groove 212 is flush with the horizontal tangent plane of the circumference of the second pipe groove 211, the side surface 2122 of each third pipe groove connected with the bottom surface 2121 extends to the circumference of the second pipe groove 211 so that the two third pipe grooves 212 form a refilling cavity for filling the earthwork dead angle, namely, the double-wall corrugated pipe 80 produced by the corrugated pipe forming mold forms an additional pipe wall for filling the earthwork refilling dead angle, and the bottom surface of each third pipe groove 212 increases the pressure bearing area of the produced double-wall corrugated pipe 80 contacting the ground, the compression toughness of the produced double-wall corrugated pipe 80 is ensured to the maximum extent.
In this embodiment, the external connection base 50 is disposed on the back surface of the groove of the first outer mold 10 and the second outer mold 20, the external connection base 50 is provided with a plurality of connection holes 51, and a plurality of heat dissipation ribs 60 are disposed on the outer wall of the outer molds on the two sides of the external connection base 50 at intervals, so as to effectively solve the heat dissipation problem of the mold.
Furthermore, the bottom surface 2121 and the side surface 2122 of the third tube slot 212 are respectively connected with the wall of the second tube slot 211 to form two connecting edges, and an included angle a between the connecting surface 70 of the two connecting edges and the bottom surface 2121 is not less than 20 degrees. In the actual construction process, according to the construction specification of the corrugated pipe, when the earth is backfilled, the backfilling of the trench is required to be within the range from the foundation part of the bottom of the pipe to the position which is 0.7M above the top of the pipe, the manual backfilling is required to be adopted, and the mechanical bulldozing backfilling is strictly forbidden. Therefore, the existing double-wall corrugated pipe is placed at the bottom of the groove, so that dead angles which cannot be backfilled exist, so that the earth backfilling is not compact, the double-wall corrugated pipe is broken, and the construction quality of the pipeline is influenced. When the included angle a between the connecting surface 70 of the two connecting edges in the mold and the bottom surface 2121 is 20 degrees, the complementary structure of the outer wall of the produced double-wall corrugated pipe 80 can just fill the dead angle of backfill, so that the whole double-wall corrugated pipe 80 is backfilled tightly, and the corrugated pipe is prevented from being broken.
In practical application, the bottom surface 2121 and the side surface 2122 are arranged in the same length, the thickness of the third tube groove 212 is arranged in the same thickness as that of the second tube groove 211, and an included angle formed by the bottom surface 2121 and the side surface 2122 is arranged in an arc angle, so that all parts of the outer tube of the produced double-wall corrugated tube 80 are uniformly stressed, and the normal use function of the original circular tube wall (the tube wall corresponding to the second tube groove 211) is maintained. In addition, as a preferred embodiment, the second pipe groove 211 and the third pipe groove 212 are an integral hollow structure, which also ensures the normal use function of the produced double-wall corrugated pipe 80.
The utility model provides a double-walled bellows forming die sets up two third chase through the relative both sides of the radial perpendicular of the horizontal tangent plane at the cyclic annular second chase circumference of semicircle, realizes that the double-walled bellows bottom that forming die produced is formed with the packing wall that carries out the packing to the dead angle of backfilling of slot, and the bellows that forms through two third chase supplyes the wall promptly and replaces earthwork to fill the dead angle of backfilling. And the bottom surface of the third pipe groove increases the pressure-bearing area of the produced corrugated pipe in contact with the ground, and the compression resistance toughness of the produced corrugated pipe is ensured to the maximum extent.
The present invention has been described in detail with reference to the embodiments shown in the drawings, and those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details of the embodiments should not be construed as limitations of the present invention, which are intended to be limited only by the scope of the appended claims.
Claims (6)
1. A double-walled bellows forming die comprising: the corrugated pipe backfilling device comprises a first outer die and a second outer die, wherein the inner circles of the first outer die and the second outer die form an arc-shaped opening, grooves are formed in the surface of the arc-shaped opening, a first semicircular arc inner die is arranged in the grooves of the first outer die, and a second semicircular arc inner die is arranged in the grooves of the second outer die, and the corrugated pipe backfilling device is characterized in that wave crest grooves and wave trough sections which are alternately arranged along the axial direction are formed in the first semicircular arc inner die and the second outer die, the wave crest grooves of the first semicircular arc inner die comprise semicircular annular first pipe grooves, the wave crest grooves of the second semicircular arc inner die comprise semicircular annular second pipe grooves which are integrally arranged and two third pipe grooves which are arranged on the circumferential wall of the second pipe grooves and used for forming a filled earthwork dead angle by corrugated pipes, and the two third pipe grooves are symmetrically arranged on two opposite sides of a radial vertical surface of a horizontal tangent plane of, the bottom surfaces of the third pipe grooves are flush with the horizontal section of the circumference of the second pipe groove, and the side surfaces of the third pipe grooves connected with the bottom surfaces extend to the circumference of the second pipe groove, so that the two third pipe grooves form a backfill chamber for filling earthwork backfill dead corners.
2. The double-wall corrugated pipe forming die according to claim 1, wherein the groove back surfaces of the first outer die and the second outer die are provided with external connecting base bodies, the external connecting base bodies are provided with a plurality of connecting holes, and a plurality of heat dissipation ribs arranged at intervals are arranged on the outer walls of the outer dies on two sides of the external connecting base bodies.
3. The double-wall corrugated pipe forming die of claim 1, wherein the bottom surface and the side surface of the third pipe groove are respectively connected with the wall of the second pipe groove to form two connecting edges, and the angle between the connecting surface of the two connecting edges and the bottom surface is not less than 20 degrees.
4. The double-walled bellows forming die of claim 3, wherein the bottom surface is disposed the same length as the side surface.
5. The double-walled bellows forming die of claim 1, wherein a thickness of the third tube groove is provided the same as a thickness of the second tube groove.
6. A double wall corrugated pipe forming die according to claim 1, wherein the included angle formed by the bottom surface and the side surface is arranged in a circular arc angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921584793.0U CN210617228U (en) | 2019-09-23 | 2019-09-23 | Double-wall corrugated pipe forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921584793.0U CN210617228U (en) | 2019-09-23 | 2019-09-23 | Double-wall corrugated pipe forming die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210617228U true CN210617228U (en) | 2020-05-26 |
Family
ID=70749353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921584793.0U Active CN210617228U (en) | 2019-09-23 | 2019-09-23 | Double-wall corrugated pipe forming die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210617228U (en) |
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2019
- 2019-09-23 CN CN201921584793.0U patent/CN210617228U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A Double Wall Corrugated Tube Forming Mold Effective date of registration: 20231211 Granted publication date: 20200526 Pledgee: China Construction Bank Guangshui Branch Pledgor: HUBEI DAYANG PLASTIC Co.,Ltd. Registration number: Y2023980070660 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |