CN202021684U - Mould used at female end of large caliber socket type reinforced concrete pipe - Google Patents
Mould used at female end of large caliber socket type reinforced concrete pipe Download PDFInfo
- Publication number
- CN202021684U CN202021684U CN 201020690624 CN201020690624U CN202021684U CN 202021684 U CN202021684 U CN 202021684U CN 201020690624 CN201020690624 CN 201020690624 CN 201020690624 U CN201020690624 U CN 201020690624U CN 202021684 U CN202021684 U CN 202021684U
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- mould
- female end
- reinforced concrete
- concrete pipe
- counterdie
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Abstract
The utility model relates to a concrete pipe mould, in particular to a mould used at the female end of a large caliber socket type reinforced concrete pipe. The mould comprises a bottom mould horizontally arranged on the ground and an internal mould is coaxially mounted on the upper side of the bottom mould. The mould is characterized in that a positioning support and a lower mould are further coaxially fixed on the upper side of the bottom mould, wherein the positioning support is used for accommodating a steel lantern ring at the female end, and the lower mould is sleeved with the steel lantern ring at the female end and the positioning support. The utility model has the advantage that a cylinder on the positioning support is utilized to restrain the shape of the bottom of the steel lantern ring at the female end and a positioning screw rod in a positioning hole is rotated to adjust the shape of the middle of the steel lantern ring at the female end, so as to guarantee the forming precision of the steel lantern ring.
Description
Technical field
The utility model relates to a kind of pipe of concrete joint mould, is specifically related to a kind of mould that is used for heavy caliber spigot-and-socket reinforced concrete pipe female end.
Background technology
It is comparatively extensive that concrete plug is used for pipe jacking method, generally be applied under the specific geographical environmental condition as the operation that is difficult to slot, region that construction environment is had relatively high expectations, can not be caused surface subsidence, as: the underground construction of buildings or structures such as railway, highway below.Present pipe jacking method mainly being configured to: setting-in steel reinforcement cage frame in the concrete tube wall with reinforced concrete pipe, this reinforcing bar cage is assembled by cableway by two coaxial cylindrical reinforcement frames, concrete tube wall one end installs steel collar as bellmouth, its other end concrete tube wall outside fluting is as socket, and the sealing of flexible material waterstop is then adopted in two joint pipe of concrete junctions.This kind pipe of concrete is mainly used in the draining field, generally uses pipe jacking method, its defective mainly be hold, that the water reliability is closed in the socket junction is relatively poor.Especially along with the increase of spigot-and-socket reinforced concrete pipe bore in recent years, but waterstop ideal compression ratio regulation is constant, also promptly require to hold, the absolute error of socket is constant, this with regard to covert reduction the relative error that allows during tubulation.For example it is generally acknowledged that in the past the reinforced concrete pipe maximum gauge is 3M, common reinforced concrete pipe diameter is about 2M, and the diameter of reinforced concrete pipe can reach 4-5M now, suppose under the situation that adopts identical waterstop, the absolute error that allows in 2mm, obviously the reinforced concrete pipe accuracy of manufacture of diameter 4M, the situation that difficulty will be higher than diameter 2M far away.
Usually the mould structure that adopts when existing spigot-and-socket reinforced concrete pipe is made is made of external mold, internal mold and bed die.External mold is two semicircle moulds, reinforced concrete pipe socket end sealing trough of belt is formed by the flange that is fixed on external mold inwall upper end, close up two semicircle moulds with closing the bolt connection, promptly form reinforced concrete pipe outer wall shape, the advantage of this mould is simple in structure, easily manufactured and low cost.But female end is different from the socket end, and then not only only there is requirement to mould and die accuracy in it.Because female end need be provided with steel collar, and this steel collar because diameter is big, thickness is thinner relatively, distortion inevitably can occur in the hoisting process under the situation that the circle back circularity that expands, precision meet the demands, cause its circularity to reduce and the generation error, and then influence the precision after the moulding.Present existing mould can't effectively be corrected the circularity of steel collar before cast, can't satisfy the required precision of heavy caliber reinforcing bar concrete pipe, and the big more absolute error of bore is big more, so need a kind of mould of rectifiable steel collar circularity in heavy caliber spigot-and-socket reinforced concrete pipe manufacture process.
Summary of the invention
The purpose of this utility model is according to above-mentioned the deficiencies in the prior art part, hold for distinguishing reinforced concrete pipe, socket and pipe shaft required precision, with external mold by vertically making patrix, middle mould, counterdie respectively, provide a kind of mould that is used for heavy caliber spigot-and-socket reinforced concrete pipe female end with counterdie and bed die, this mould is by being provided with the circularity that positioning support retrains the steel collar bottom in the bottom, and in, top is provided with locating hole and corrects the circularity of steel collar herein, satisfied the required precision of heavy caliber spigot-and-socket reinforced concrete pipe female end.
The utility model purpose realizes being finished by following technical scheme:
A kind of mould that is used for heavy caliber spigot-and-socket reinforced concrete pipe female end comprises that level is located at ground bed die, and described bed die upside is coaxially installed with internal mold, it is characterized in that described bed die upside is also coaxial to be fixed with:
One location bearing, be used for plug-in mounting female end steel collar, this positioning support roughly is cylindrical shape, its upper end is inwardly shunk and is cone shape, the cylinder part of described positioning support and described female end steel collar form interference fits to retrain its shape, the coaxial cylindrical shape cavity that offers in the described positioning support is used for the described internal mold of suit;
One counterdie, be set with described female end steel collar and positioning support, this counterdie roughly is cylinder type and has a cylindrical cavity, is equipped with a plurality of locating holes that distribute ringwise on its sidewall, wherein each ring is made up of some equally distributed locating holes, and each locating hole threaded engagement has screw rod.
Described counterdie upper end level stretches out and is useful on and the co-axially fixed ring flange of middle mould, described ring flange outer rim is evenly distributed with some bolts that close, the lower end level of described counterdie is outward extended with collar flange, vertical welding is connected to plurality of strengthening ribs between described ring flange and described flange, the outer surface welding of described reinforcement and described counterdie.
Described ring flange upside radially is provided with the raised item of two symmetries, and this raised item is used for limiting the amalgamation position of two half modules that constitute described mould.
The spacing of locating hole is 900mm-1200mm in each ring.
The quantity of locating hole is 10-20 in each ring.
At least one loop mapping is near edge setting on the described counterdie.
The outer rim and the inner edge of described positioning support upper end offer step, are used for installing and only starch rubber strip.
The outer rim of described bed die is evenly distributed with a plurality of swingles, described swingle one end and described bed die are hinged, the other end is hinged with a crosshead, offer a screw in the described crosshead, this screw threaded engagement has one to press down screw rod, the described screw rod lower end that presses down is connected with a pressure head by plane bearing, this pressure head outer end offer one with the groove of described steel collar wall thickness coupling.
The utility model has the advantages that: retrain the shape of female end steel collar bottom by the cylinder on the positioning support, and adjust the shape at female end steel collar middle part, guaranteed the formed precision of steel collar by the positioning screw on the rotation locating hole.
Description of drawings
Fig. 1 is the utility model reinforced concrete pipe mold integral structural representation;
Fig. 2 is the utility model structure counterdie structural entity schematic diagram;
Fig. 3 is a mode structure cutaway view under the utility model structure.
The specific embodiment
The utility model feature and other correlated characteristic are described in further detail by embodiment below in conjunction with accompanying drawing, so that technical staff's of the same trade understanding:
As shown in Figure 1 to Figure 3, always represent respectively with reference to label 1-25: bed die 1, cushion block 2, counterdie 3, positioning support 4, middle mould 5, internal mold 6, patrix 7, steel collar 8, cylinder part 9, circular cone body 10, locating hole 11, ring flange 12, close bolt 13, flange 14, reinforcement 15, I-steel 16, annular groove 17, job platform 18, raised item 19, only starch rubber strip 20, swingle 21, crosshead 22, press down screw rod 23, pressure head 24, handle 25.
Referring to shown in Figure 1, the reinforced concrete pipe mould is mainly constituted by bed die 1, counterdie 3, middle mould 5, patrix 7 and internal mold 6 in the utility model, wherein patrix 7 is the casting mold of socket end outer surface, middle mould 5 is the casting mold of reinforced concrete pipe pipe shaft outer surface, counterdie 3, the bed die 1 common casting mold that constitutes the female end outer surface, 6 of internal molds are the casting mold of reinforced concrete pipe inner surface, 18 of job platforms as mould install, the platform of operating personnel's work when integrated poured.Above-mentioned bed die 1, counterdie 3, middle mould 5, patrix 7 is coaxial from the bottom to top fixes, in the coaxial internal mold 6 that is provided with wherein, and the upper end of mould 5 during 18 of job platforms are hung on.
Bed die 1 is roughly to be toroidal, and its lower end is horizontally disposed with on the ground by I-steel 16, can be by thing bed hedgehopping levellings such as chocks when the out-of-flatness of ground.Bed die 1 upside is coaxially installed with internal mold 6, counterdie 3 and positioning support 4.Below for the structure of bed die 1, counterdie 3 and positioning support 4 and between connected mode be described in detail:
One, positioning support 4 and with the syndeton of bed die 1
As shown in Figure 2, bed die 1 upside offers an annular groove 17, and positioning support 4 lower ends place in this annular groove 17, and by some bolted-on, the purpose that annular groove 17 is provided with is to guarantee bed die 1 and positioning support 4 coaxial installations.
Positioning support 4 is used for plug-in mounting female end steel collar 8, and these positioning support 4 external forms roughly are cylindrical shape, is divided into 10 two parts of cylinder part 9 and circular cone body.Be noted that this cylinder part 9 and circular cone body 10 are structure as a whole, just for convenience positioning support 4 be divided into two parts herein, rather than structural two parts.Wherein cylinder part 9 forms interference fits to retrain its shape with steel collar 8, and cylinder part 9 tops are inwardly shunk and are cone shape, form circular cone body 10, and the purpose that circular cone body 10 is set is for the ease of suit steel collar 8.The coaxial cylindrical shape cavity that offers in the positioning support 4 is used for the described internal mold 6 of suit.
The upper surface of positioning support 4 defines the end face of reinforced concrete pipe female end xoncrete structure when cast, so, for avoiding the concrete grout seepage, (it is an annulus that positioning support 4 is overlooked for the outer rim of positioning support 4 upper ends and inner edge, outer rim and inner edge be the great circle of annulus and roundlet for this reason both) offer step, be used for installing and only starch rubber strip 20.When cast, the rubber strip 20 of only starching that is provided with on the outer rim step contacts with steel collar 8, and the rubber strip 20 of only starching that is provided with on the inner edge step contacts with internal mold 6, prevents that mud from infiltrating along the slit.
The purpose that positioning support 4 is provided with is in order by cylinder part 9 steel collar 8 to be held round to limit its deformation, by the structure of reinforced concrete pipe as can be known, what steel collar 8 contacted with cylinder part 9 is its end, also be and the part of socket end in contact, its circularity plays crucial effects for the sealing property of spigot-and-socket reinforced concrete pipe.
Two, counterdie 3 and with the syndeton of bed die 1
The outside at annular groove 17, be evenly distributed with some apertures on the bed die 1, aperture is to there being cushion block 2, counterdie 3 is placed on the cushion block 2, and by in the locating hole on the long alignment pin insertion bed die 1 on the counterdie 3, another short alignment pin on the counterdie 3 is also inserted on the bed die 1 in another locating hole, counterdie 3 and bed die 1 are coaxial fixing again.
Counterdie 3 roughly is cylinder type and has the cavity of a cylindrical shape, this cylindrical shape cavity is used to be set with steel collar 8 and positioning support 4, be equipped with some locating holes 11 that distribute ringwise on the sidewall of this counterdie 3, locating hole 11 on this annulus evenly distributes, wherein each locating hole 11 screw-internal thread fit has screw rod, when in the counterdie 3 steel collar 8 being installed, the outside by precession screw rod conflict steel collar 8, and then can adjust the circularity of steel collar 8, when the inwall spacing of steel collar 8 and counterdie 3 equates, can think that steel collar 8 circularity reach standard.It should be noted that, above-mentioned " steel collar 8 circularity reach standard " refers to locating hole 11 places corresponding to annular spread, for heavy caliber reinforcing bar concrete pipe, steel collar 8 bigger bores cause it more yielding with relative small wall thickness, and the reinforced concrete pipe of spigot-and-socket is higher for the female end required precision, so for this type of bigbore reinforced concrete pipe, can establish several loop mappings hole 11 more when needed and guarantee that steel collar 8 all can reach desirable circularity everywhere.But also need have one to encircle the upper end that is positioned at counterdie, to determine the circularity of steel collar 8 roots.
By experiment, for the wall thickness 12-16mm steel collar 8 of routine, effective adjusting width of a satisfactory screw rod of intensity (deformation can not take place when jacking) is within 1.5m, both the deformation quantity that exceeds zone behind the 0.75m and this screw acting point away from the circumferential distance of screw acting point was compared and was had very large gap, can be considered the adjustable range that exceeds this screw rod.Be provided with in theory that circularity after many more adjustings is unreasonable to be thought, but consider simplify the operation and practical adjustments in inevitable error, locating hole 11 should be controlled in the scope of 0.9m-1.2m, and considers that the girth of steel collar 8 roughly evenly distributes it.Steel collar 8 with external diameter 4.5m is an example, and its girth is approximately 14.14m, and locating hole 11 spacings are 0.88m when quantity being set being 16, less than 0.9m; Locating hole 11 spacings are 1.29m when quantity being set being 11, are higher than 1.2m, so locating hole 11 quantity should be between 11-16 (not comprising end points).Consider that the precision of small-bore reinforced concrete pipe own reaches requirement easily, locating hole 11 must be set regulate, also more loaded down with trivial details in the operation when locating hole 11 quantity are too much simultaneously so the quantity of locating hole should not be lower than 10, so also should not be higher than 20.So locating hole 11 spacings are to be advisable between the 0.9m-1.2m, should guarantee that also quantity is between 10-20 simultaneously.
The upper end level of counterdie 3 stretches out and is useful on and the co-axially fixed ring flange 12 of middle mould, and ring flange 12 outer rims are evenly distributed with some bolts 13 that close, and is used for fixing with the coaxial of mould 5.Ring flange 12 upsides radially are provided with the raised item 19 of two symmetries, and this raised item 19 is used to limit the amalgamation position of two half modules that constitute described internal mold 5, and simultaneously above-mentioned half module also should exist and the corresponding breach of this raised item 19 couplings at the inferior horn of its end.The lower end level of counterdie 3 is outward extended with collar flange 14, and 14 vertical weldings of described ring flange 12 and described flange are connected to plurality of strengthening ribs 15, and reinforcement 15 welds to strengthen the rigidity of counterdie 3 with the outer surface of counterdie 3.
Spillage when avoiding pouring into a mould also is provided with between counterdie 3 and the middle mould 5 and only starches rubber strip 20.As shown in the figure, counterdie 3 ring flanges upper end is provided with the coaxial groove that is nested of two rings, and in installation, be provided with respectively during mould 5 and only starch rubber strip 20, wherein the rubber strip 20 of only starching of inner ring mainly plays the effect that ends slurry, 20 effects of playing balance support of rubber strip of only starching of outer ring, when preventing in installation mould 5, the situations of inclination appear in two half modules.
Because when mounted, be at first bed die 1 to be installed on the ground, afterwards steel collar 8 is put into counterdie 3, and integral hoisting is to bed die 1.So for making things convenient for steel collar 8 and counterdie 3 liftings, be provided with some supporting spring (not shown) in the bottom (flange 14 bottoms) of counterdie 3, each supporting spring can be by 25 rotations of a handle, and handle 25 is located at the upside of flange 14.When steel collar 8 was put into counterdie 3, rotary handle 25 made supporting spring be supported on the bottom of steel collar 8, can lift together with counterdie 3; Before putting into positioning support 4, reverse rotation handle 25 is regained supporting spring, and steel collar 8 can drop on the positioning support 4.
Three, bed die 1
In the said structure, steel collar 8 needs on the tight suit positioning support 4, so the outer rim at bed die 1 is evenly distributed with several swingles 21, described swingle 21 1 ends and described bed die 3 are hinged, the other end is hinged with a crosshead 22, offers a screw in the described crosshead 22, and this screw threaded engagement has one to press down screw rod 23, described screw rod 23 lower ends that press down are connected with a pressure head 24 by plane bearing, these pressure head 24 outer ends offer one with the groove of described steel collar 8 wall thickness coupling.When needs were pressed into steel collar 8, upset swingle 21 made the wall of the corresponding steel collar 8 of groove of pressure head 24, and rotation afterwards presses down screw rod 23 presses down pressure head 24, has both driven steel collar 8 and has moved down.When a plurality of screw rods 23 that press down when pressing down synchronously, steel collar 8 can be contained on the positioning support 4 by vertical sleeve, and this kind structure has avoided knocking with things such as hammers the distortion of the steel collar 8 that causes, and has further improved the precision of female end.
Claims (8)
1. mould that is used for heavy caliber spigot-and-socket reinforced concrete pipe female end comprises that level is located at ground bed die, and described bed die upside is coaxially installed with internal mold, it is characterized in that described bed die upside is also coaxial to be fixed with:
One location bearing, be used for plug-in mounting female end steel collar, this positioning support roughly is cylindrical shape, its upper end is inwardly shunk and is cone shape, the cylinder part of described positioning support and described female end steel collar form interference fits to retrain its shape, the coaxial cylindrical shape cavity that offers in the described positioning support is used for the described internal mold of suit;
One counterdie, be set with described female end steel collar and positioning support, this counterdie roughly is cylinder type and has a cylindrical cavity, is equipped with a plurality of locating holes that distribute ringwise on its sidewall, wherein each ring is made up of some equally distributed locating holes, and each locating hole threaded engagement has screw rod.
2. a kind of mould that is used for heavy caliber spigot-and-socket reinforced concrete pipe female end as claimed in claim 1, it is characterized in that: described counterdie upper end level stretches out and is useful on and the co-axially fixed ring flange of middle mould, described ring flange outer rim is evenly distributed with some bolts that close, the lower end level of described counterdie is outward extended with collar flange, vertical welding is connected to plurality of strengthening ribs between described ring flange and described flange, the outer surface welding of described reinforcement and described counterdie.
3. a kind of mould that is used for heavy caliber spigot-and-socket reinforced concrete pipe female end as claimed in claim 2, it is characterized in that: described ring flange upside radially is provided with the raised item of two symmetries, and this raised item is used for limiting the amalgamation position of two half modules that constitute described mould.
4. a kind of mould that is used for heavy caliber spigot-and-socket reinforced concrete pipe female end as claimed in claim 1 is characterized in that: the spacing of locating hole is 900mm-1200mm in each ring.
5. a kind of mould that is used for heavy caliber spigot-and-socket reinforced concrete pipe female end as claimed in claim 1 is characterized in that: the quantity of locating hole is 10-20 in each ring.
6. a kind of mould that is used for heavy caliber spigot-and-socket reinforced concrete pipe female end as claimed in claim 1 is characterized in that: at least one loop mapping is near edge setting on the described counterdie.
7. a kind of mould that is used for heavy caliber spigot-and-socket reinforced concrete pipe female end as claimed in claim 1 is characterized in that: the outer rim and the inner edge of described positioning support upper end offer step, are used for installing and only starch rubber strip.
8. a kind of mould that is used for heavy caliber spigot-and-socket reinforced concrete pipe female end as claimed in claim 1, it is characterized in that: the outer rim of described bed die is evenly distributed with a plurality of swingles, described swingle one end and described bed die are hinged, the other end is hinged with a crosshead, offer a screw in the described crosshead, this screw threaded engagement has one to press down screw rod, and the described screw rod lower end that presses down is connected with a pressure head by plane bearing, this pressure head outer end offer one with the groove of described steel collar wall thickness coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020690624 CN202021684U (en) | 2010-12-30 | 2010-12-30 | Mould used at female end of large caliber socket type reinforced concrete pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020690624 CN202021684U (en) | 2010-12-30 | 2010-12-30 | Mould used at female end of large caliber socket type reinforced concrete pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202021684U true CN202021684U (en) | 2011-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020690624 Expired - Lifetime CN202021684U (en) | 2010-12-30 | 2010-12-30 | Mould used at female end of large caliber socket type reinforced concrete pipe |
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| CN (1) | CN202021684U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102120341A (en) * | 2010-12-30 | 2011-07-13 | 上海市第二市政工程有限公司 | Mould for socket end of large-diameter socket and spigot type reinforcement concrete pipe |
| CN106042320A (en) * | 2016-07-13 | 2016-10-26 | 安徽永高塑业发展有限公司 | Mold for spigot or muzzle bell of HDPE hollow wall winding pipe |
| CN110653932A (en) * | 2019-09-29 | 2020-01-07 | 青岛理工大学 | Concrete shaft model making device and using method |
-
2010
- 2010-12-30 CN CN 201020690624 patent/CN202021684U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102120341A (en) * | 2010-12-30 | 2011-07-13 | 上海市第二市政工程有限公司 | Mould for socket end of large-diameter socket and spigot type reinforcement concrete pipe |
| CN106042320A (en) * | 2016-07-13 | 2016-10-26 | 安徽永高塑业发展有限公司 | Mold for spigot or muzzle bell of HDPE hollow wall winding pipe |
| CN110653932A (en) * | 2019-09-29 | 2020-01-07 | 青岛理工大学 | Concrete shaft model making device and using method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI URBAN CONSTRUCTION MUNICIPAL ENGINEERING Free format text: FORMER NAME: SHANGHAI NO.2 MUNICIPAL ENGINEERING CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 200232 Xuhui District, Liuzhou Wu Road, Lane No. 13, No. 3, No. Patentee after: Shanghai urban construction Municipal Engineering (Group) Co., Ltd. Address before: 200232 Xuhui District, Liuzhou Wu Road, Lane No. 13, No. 3, No. Patentee before: Shanghai No.2 Municipal Engineering Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20111102 Effective date of abandoning: 20120725 |