Cushion structure of nodular cast iron pipe

Abstract

The utility model relates to the technical field of nodular cast iron pipes, in particular to a cushion layer structure of a nodular cast iron pipe. The nodular cast iron pipe further comprises pre-installation supports, the two sides of the lower portion of the nodular cast iron pipe body are fixedly connected with the two pre-installation supports, the pre-installation supports are fixedly connected with corrugated buffering pads for absorbing vibration, the corrugated buffering pads are connected to the nodular cast iron pipe body, and rubber sealing strips are fixedly connected to the lower portions of the pre-installation supports. A plurality of pre-embedded cross beams are arranged below the rubber sealing strip, the pre-embedded cross beams are fixedly connected to a pre-installation support, and a plurality of anchoring piles are fixedly connected to the lower portion of one side of the pre-installation support; the nodular cast iron pipe body is sealed and protected through the rubber sealing strips, vibration from the ground or under the ground is absorbed through the corrugated buffering cushion, the nodular cast iron pipe body is prevented from being impacted and moving, the nodular cast iron pipe body is protected, the service life of equipment is prolonged, and the service life of the equipment is prolonged. And subsequent maintenance personnel can conveniently and accurately maintain, and the maintenance cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to nodular cast iron pipe technical field especially nodular cast iron pipe's cushion layer structure. BACKGROUND

[0002] Nodular cast iron pipe is a kind of high-performance pipeline with cast iron as base material, by adding magnesium or rare earth elements to make internal graphite spherical, has corrosion resistance of cast iron and strength of steel, is widely used in urban water supply, drainage and gas transmission engineering, the cushion layer structure of nodular cast iron pipe is the support layer laid at the bottom and around when installing pipeline, usually by sand, concrete or composite material, it is mainly used to uniformly disperse pipeline load, avoid uneven settlement of foundation to cause pipeline deformation, buffer external impact, absorb dynamic stress caused by traffic vibration or geological activity, isolate corrosive medium, prevent water, acid and alkali substances in soil from directly eroding pipe wall, improve stability, reduce pipeline displacement risk by dense backfill, thereby prolong service life and guarantee the safe operation of water and gas transmission system, cushion layer structure is the key technical guarantee for long-term reliable service of nodular cast iron pipe.

[0003] Traditional nodular cast iron pipe cushion layer structure is simple and single, in the environment of loose geology or frequent vibration, it is easy to be damaged, drainage and sealing are not perfect enough, pipe wall is easy to be eroded, nodular cast iron pipe is insufficiently protected, displacement and pipe fall-off of pipeline are easy to occur, cause difficulty in maintenance, increase maintenance cost, reduce the service life of device, may cause leakage of pipe material, lead to dangerous accidents and energy waste, there is great safety hazard.

[0004] Therefore, in view of the problems of traditional nodular cast iron pipe cushion layer structure simple and single, drainage and sealing are not perfect enough, easy to be damaged, increase maintenance cost, reduce the service life of device, there is great safety hazard, a cushion layer structure of nodular cast iron pipe not easy to fall off with buffering and shock-absorbing function can be designed. CONTENT OF UTILITY MODEL

[0005] In order to overcome the problems of traditional nodular cast iron pipe cushion layer structure simple and single, drainage and sealing are not perfect enough, easy to be damaged, increase maintenance cost, reduce the service life of device, there is great safety hazard.

[0006] The utility model discloses a technical scheme for the cushion structure of the nodular cast iron pipe, which comprises a nodular cast iron pipe body and further comprises pre-installation supports.

[0007] Preferably, when the nodular cast iron pipe body is installed, the two pre-installation supports are connected below the nodular cast iron pipe body, the corrugated buffer pad is in contact with the nodular cast iron pipe body, the two pre-installation supports are horizontally fixed by the plurality of pre-buried cross beams, the rubber sealing strip is installed in the middle below the two pre-installation supports, and the nodular cast iron pipe body is sealed and protected.

[0008] Preferably, the pre-installation supports are provided with a plurality of water outlets for draining water, and the pre-installation supports are fixedly connected with stepped plates below the sides.

[0009] Preferably, the stepped plates are fixedly connected with a plurality of hydraulic cylinders for providing pressure, and the output ends of the hydraulic cylinders are fixedly connected with hydraulic rods.

[0010] Preferably, the pre-installation supports are provided with connecting holes below the pre-installation supports, and the connecting holes are fixedly connected with the pre-buried cross beams.

[0011] Preferably, the pre-installation supports are provided with sealing holes below the pre-installation supports, and the sealing holes are fixedly connected with the rubber sealing strips.

[0012] Preferably, the anchoring piles are fixedly connected with a mixed layer below the anchoring piles, and the mixed layer is provided with a plurality of drainage grooves.

[0013] Preferably, the mixed layer is fixedly connected with a cement fixed layer below the mixed layer, and the cement fixed layer is fixedly connected with a gravel layer below the cement fixed layer.

[0014] The utility model has the advantages of the following:

[0015] The preparation work of installing the ductile cast iron pipe body is completed in advance by using the pre-installation support, the rubber sealing strip seals and protects the ductile cast iron pipe body, the corrugated buffer pad absorbs the vibration from the ground or the bottom, prevents the ductile cast iron pipe body from being impacted and displaced, protects the ductile cast iron pipe body, prolongs the service life of the equipment, meanwhile, the pre-buried cross beam and the anchor pile are used for transversely positioning the ductile cast iron pipe body, further fix the ductile cast iron pipe body, facilitate accurate maintenance of subsequent maintenance personnel, reduce the maintenance cost, meanwhile, the safety is improved, the water accumulation is guided through cooperation of the water outlet hole and the drainage groove, the pipe wall is prevented from being soaked by the water accumulation, and the pipe wall is prevented from being eroded. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A general three-dimensional structure schematic view of the utility model is shown;

[0017] Figure 2 A general cross-section structure schematic view of the utility model is shown;

[0018] Figure 3 A pre-installation support structure schematic view of the utility model is shown;

[0019] Figure 4 A hydraulic rod structure schematic view of the utility model is shown;

[0020] Figure 5 A mixed layer structure schematic view of the utility model is shown.

[0021] The number 1 is a ductile cast iron pipe body, the number 2 is a pre-installation support, the number 201 is a water outlet hole, the number 202 is a stepped plate, the number 203 is a connecting hole, the number 204 is a sealing hole, the number 3 is a corrugated buffer pad, the number 4 is a rubber sealing strip, the number 5 is a pre-buried cross beam, the number 6 is an anchor pile, the number 7 is a hydraulic cylinder, the number 8 is a hydraulic rod, the number 9 is a mixed layer, the number 901 is a drainage groove, the number 10 is a cement fixed layer, and the number 11 is a gravel layer. DETAILED DESCRIPTION

[0022] The utility model will be further explained in combination with the drawings and examples.

[0023] Please refer to Figures 1-5The utility model provides a kind of embodiment: a cushion structure of nodular cast iron pipe, including nodular cast iron pipe body 1;It further includes pre-installation support 2, two pre-installation supports 2 are fixedly connected with the both sides below nodular cast iron pipe body 1, pre-installation support 2 is fixedly connected with corrugated cushion pad 3 of absorbing vibration, corrugated cushion pad 3 is connected on nodular cast iron pipe body 1, pre-installation support 2 is fixedly connected with rubber sealing strip 4 below, several embedded cross beams 5 are equipped below rubber sealing strip 4, embedded cross beam 5 is fixedly connected on pre-installation support 2, several anchor piles 6 are fixedly connected with the both sides below pre-installation support 2, when installing nodular cast iron pipe body 1, two pre-installation supports 2 are connected below nodular cast iron pipe body 1, make corrugated cushion pad 3 and nodular cast iron pipe body 1 contact, utilize several embedded cross beams 5 to carry out horizontal fixation to two sides of pre-installation support 2, simultaneously utilize several anchor piles 6 to carry out vertical positioning, rubber sealing strip 4 is installed in the middle below two pre-installation supports 2, nodular cast iron pipe body 1 is sealed protection, several water outlets 201 for draining are equipped above pre-installation support 2, pre-installation support 2 is fixedly connected with step plate 202 below one side, utilize water outlet 201 to discharge water on pre-installation support 2, step plate 202 is used as installation foundation, for fixed and indirect other components, several hydraulic cylinders 7 providing pressure are fixedly connected on step plate 202, the output end of hydraulic cylinder 7 is fixedly connected with hydraulic rod 8, hydraulic cylinder 7 is installed again below step plate 202, utilizes the output pressure of hydraulic cylinder 7, promotes hydraulic rod 8 to carry out linear motion, when installing nodular cast iron pipe body 1, carry out small amplitude angle adjustment.

[0024] Please refer to Figures 1-5 In the embodiment, connecting hole 203 is equipped below pre-installation support 2, pre-installation support 2 is fixedly connected with embedded cross beam 5 on connecting hole 203, two pre-installation supports 2 are fixedly connected by embedded cross beam 5 through connecting hole 203, sealing hole 204 is equipped below pre-installation support 2, rubber sealing strip 4 is fixedly connected on sealing hole 204, two sides of pre-installation support 2 are elastically sealed by rubber sealing strip 4 through sealing hole 204, nodular cast iron pipe body 1 is protected, mixed layer 9 is fixedly connected below anchor pile 6, several drainage grooves 901 are equipped on mixed layer 9, mixed layer 9 is directly contacted with nodular cast iron pipe body 1, avoids stress concentration, simultaneously aligns drainage groove 901 and water outlet 201, so that mixed layer 9 has better water permeability, cement fixed layer 10 is fixedly connected below mixed layer 9, gravel layer 11 is fixedly connected below cement fixed layer 10, the position of nodular cast iron pipe body 1 is fixed by cement fixed layer 10, displacement is limited, finally load is dispersed by gravel layer 11, the bearing energy of foundation is enhanced, and pipeline is not settled.

[0025] In the work, two pre-installation support 2 is connected in the lower ballast pipe body 1, the corrugated buffer pad 3 and ballast pipe body 1 contact, through the connecting hole 203 with pre-buried beam 5 two pre-installation support 2 fixed connection, horizontal positioning, while using a plurality of anchor pile 6 vertical positioning, through the sealing hole 204 with both sides of the pre-installation support 2 using rubber sealing strip 4 elastic sealing, protection of the ballast pipe body 1, the hydraulic cylinder 7 installation in the ladder plate 202 below, using hydraulic cylinder 7 output pressure, push hydraulic rod 8 linear motion, in the installation of ballast pipe body 1 when a small amplitude angle adjustment, the lower ballast pipe body 1 set mixed layer 9, using mixed layer 9 directly with ballast pipe body 1 contact, avoid stress concentration, while setting the drain groove 901 and water outlet hole 201 alignment, the mixed layer 9 has better water permeability, then using cement fixed layer 10 to fix the position of ballast pipe body 1, limit displacement, finally using gravel layer 11 dispersion load, enhance the bearing capacity of foundation, guarantee the pipeline does not settle.

[0026] Through the above steps, using pre-installation support 2 in advance to install ballast pipe body 1 the preparation work is completed, rubber sealing strip 4 to ballast pipe body 1 sealing protection, using corrugated buffer pad 3 from the ground or the shock absorption, prevent ballast pipe body 1 from impact and lead to displacement, protection of the ballast pipe body 1, prolong the service life of the equipment, while also using pre-buried beam 5 and anchor pile 6 to ballast pipe body 1 horizontal positioning, further to ballast pipe body 1 fixed, convenient for accurate maintenance personnel to carry on the follow-up maintenance, reduce maintenance cost, at the same time improve the safety, through the water outlet hole 201 and drain groove 901 cooperation, water diversion, prevent water immersion pipe wall, make the pipe wall is eroded, to solve the traditional ballast pipe cushion structure simple single, drainage and sealing are not perfect, easy to be damaged, increase the cost of maintenance, reduce the service life of the device, there is a big security risk.

Claims

1. A gasket structure for a ductile cast iron pipe comprising a ductile cast iron pipe body (1); characterized in that: It also includes pre-installation support (2), ductile iron pipe body (1) below both sides are fixedly connected with two pre-installation support (2), pre-installation support (2) are fixedly connected with the corrugated buffer pad (3) that absorbs vibration, corrugated buffer pad (3) are connected on ductile iron pipe body (1), pre-installation support (2) below are fixedly connected with rubber sealing strip (4), several pre-buried cross beams (5) are equipped below rubber sealing strip (4), pre-buried cross beams (5) are fixedly connected on pre-installation support (2), pre-installation support (2) one side below are fixedly connected with several anchor piles (6).

2. The gasket structure for a ductile cast iron pipe according to claim 1, characterized in that: Pre-installation support (2) above are equipped with several water outlet holes (201) for drainage, pre-installation support (2) one side below are fixedly connected with ladder plate (202).

3. The gasket structure for a ductile cast iron pipe according to claim 1, characterized in that: Ladder plate (202) are fixedly connected with several hydraulic cylinders (7) that provide pressure, the output end of hydraulic cylinder (7) is fixedly connected with hydraulic rod (8).

4. The gasket structure for a ductile cast iron pipe according to claim 1, characterized in that: Pre-installation support (2) below are equipped with connecting holes (203), connecting holes (203) are fixedly connected with pre-buried cross beams (5).

5. The gasket structure for a ductile cast iron pipe according to claim 1, characterized in that: Pre-installation support (2) below are equipped with sealing holes (204), sealing holes (204) are fixedly connected with rubber sealing strip (4).

6. The gasket structure for a ductile cast iron pipe according to claim 1, characterized in that: Anchor pile (6) below are fixedly connected with mixed layer (9), several drainage grooves (901) are equipped on mixed layer (9).

7. The gasket structure for a ductile cast iron pipe according to claim 1, characterized in that: Mixed layer (9) below are fixedly connected with cement fixed layer (10), cement fixed layer (10) below are fixedly connected with broken stone layer (11).

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