CN215618961U - Positioning device for pouring nodular cast iron jacking pipe - Google Patents
Positioning device for pouring nodular cast iron jacking pipe Download PDFInfo
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- CN215618961U CN215618961U CN202120790034.0U CN202120790034U CN215618961U CN 215618961 U CN215618961 U CN 215618961U CN 202120790034 U CN202120790034 U CN 202120790034U CN 215618961 U CN215618961 U CN 215618961U
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Abstract
The utility model provides a positioning device for pouring a nodular cast iron jacking pipe, which comprises a positioning lantern ring, a plurality of adjusting rods and a plurality of positioning blocks; the positioning lantern ring is used for being nested at the socket end of the outer wall of the nodular cast iron pipe core; the adjusting rods are distributed at equal intervals along the circumferential direction of the positioning lantern ring and are fixedly connected with the top surface of the positioning lantern ring; each adjusting rod is connected with a first adjusting piece and a second adjusting piece which are used for being abutted with the nodular cast iron pipe core; the positioning blocks are distributed at equal intervals along the circumferential direction of the positioning lantern ring and are detachably arranged on the bottom surface of the positioning lantern ring; the inner circumferential surface of each positioning block is used for being abutted against the outer wall surface of the nodular cast iron pipe core; the top surfaces of the positioning blocks are matched together to determine a socket plane for pouring concrete. The positioning device for pouring the nodular cast iron jacking pipe provided by the utility model can ensure that the socket plane is vertical to the axial direction of the nodular cast iron jacking pipe, so that the socket plane is uniformly stressed in the forward pushing process of the jacking pipe, and the service life of the jacking pipe is prolonged.
Description
Technical Field
The utility model belongs to the technical field of nodular cast iron jacking pipe pouring, and particularly relates to a positioning device for nodular cast iron jacking pipe pouring.
Background
The pipe-jacking construction is a construction technology for laying or replacing trenchless tunneling underground pipelines used for municipal construction, and the pipe-jacking construction pushes a tool pipe or a tunneling machine from a working well through a soil layer to a receiving well by means of the thrust of a main jacking cylinder or an inter-pipeline relay (the relay refers to a closed annular small chamber which is arranged in the middle of a pipe section and is used for jacking in sections in a long-distance pipe jacking and is generally made of steel, a jack is arranged along a pipe ring) and the like, and during the period, the jacks and sockets of all sections of the pipe jacking need to bear huge pressure, wherein the cast iron nodular graphite pipe has the advantages of high strength, corrosion resistance and small resistance compared with the pipe jacking made of other materials, and is widely used.
When the nodular cast iron pipe jacking is produced, a layer of concrete is required to be poured outside a nodular cast iron pipe core, a layer of reinforcing mesh is added into the concrete to increase the strength of the pipe jacking, a plane formed by the concrete close to a socket of the nodular cast iron pipe core is called a socket plane, and a socket steel ring is required to be arranged outside the socket plane to reinforce the socket plane. The existing pouring method for the nodular cast iron jacking pipe is difficult to ensure that a socket plane and a socket steel ring are axially vertical to the jacking pipe. In the construction process, the inclined or uneven socket plane can deform or even damage under huge axial extrusion force, and serious influence is caused on subsequent construction and use.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a positioning device for pouring a nodular cast iron jacking pipe, and aims to solve the problem that the existing pouring method is difficult to ensure that a socket plane formed by pouring concrete is vertical to the axial direction of the jacking pipe.
In order to achieve the purpose, the utility model adopts the technical scheme that: the positioning device for pouring the nodular cast iron jacking pipe comprises a positioning lantern ring, an adjusting rod and a positioning block; the positioning lantern ring is used for being nested outside the nodular cast iron pipe core and is arranged close to the socket of the nodular cast iron pipe core; the adjusting rods are distributed at equal intervals along the circumferential direction of the positioning lantern ring and are fixedly arranged on the top surface of the positioning lantern ring; each adjusting rod is connected with a first adjusting piece which is used for being abutted against the outer wall of the nodular cast iron pipe core, and/or each adjusting rod is connected with a second adjusting piece which is used for being abutted against the socket end face of the nodular cast iron pipe core; the positioning blocks are distributed at equal intervals along the circumferential direction of the positioning lantern ring and are detachably arranged on the bottom surface of the positioning lantern ring; the inner circumferential surface of each positioning block is used for being abutted against the outer wall surface of the nodular cast iron pipe core; the top surfaces of the positioning blocks are matched together to determine a socket plane for pouring concrete.
In one possible implementation manner, the first adjusting piece and the second adjusting piece are both adjusting bolts.
In one possible implementation mode, the adjusting rod comprises a vertical part and a horizontal part, wherein the bottom end of the vertical part is fixedly arranged on the top surface of the positioning sleeve ring, and the top end of the vertical part extends upwards to the position above the socket end surface of the nodular cast iron pipe core; one end of the horizontal part is fixedly connected with the top end of the vertical part, and the other end of the horizontal part extends into the nodular cast iron pipe core along the radial direction of the nodular cast iron pipe core; the first adjusting member is disposed on the vertical portion, and the second adjusting member is disposed on the horizontal portion.
In a possible implementation manner, a plurality of positioning grooves are distributed on the lower end face of the positioning sleeve ring at equal intervals along the circumferential direction, and the plurality of positioning grooves correspond to the positioning blocks one to one and are used for placing the positioning blocks.
In some embodiments, the positioning groove penetrates along the radial direction of the positioning sleeve ring; the top surface of the positioning block is provided with a notch which is correspondingly inserted with the positioning groove.
In a possible implementation manner, the bottom surface of the positioning block is provided with a fixing groove, and the fixing groove is used for fixing the reinforcing mesh.
In a possible implementation manner, the positioning device for pouring the nodular cast iron jacking pipe further comprises a socket steel ring; after the positioning lantern ring is detached and separated from the positioning blocks, the socket steel rings are arranged on the top surfaces of the positioning blocks; the socket steel ring is used for reinforcing the socket plane.
Compared with the prior art, the positioning device for pouring the nodular cast iron jacking pipe provided by the embodiment of the application is characterized in that before concrete is poured, the detachable positioning sleeve ring is sleeved on the outer wall of the nodular cast iron pipe core, the same adjusting method is adopted for a plurality of first adjusting pieces with the same initial state on the adjusting rod until the first adjusting pieces can be abutted against the outer wall of the nodular cast iron pipe core, and the end surface of the positioning sleeve ring is perpendicular to the outer wall of the nodular cast iron pipe core by finely adjusting the second adjusting piece; the end face of the positioning sleeve ring is used for positioning the positioning blocks arranged at intervals on the outer wall of the nodular cast iron pipe core, the positioning blocks are fixedly connected with the outer wall of the nodular cast iron pipe core, the plane defined by the positioning blocks is perpendicular to the axial direction of the nodular cast iron pipe core, the socket plane formed by concrete pouring with the positioning blocks as the reference is guaranteed to be perpendicular to the axial direction of the nodular cast iron pipe core, the quality of the pipe jacking is improved, the socket plane is enabled to be stressed uniformly in the process of forward propulsion of the nodular cast iron pipe jacking, and the service life of the pipe jacking is prolonged.
Drawings
Fig. 1 is a schematic structural diagram of a positioning device for casting a nodular cast iron jacking pipe, provided by an embodiment of the utility model;
FIG. 2 is a schematic structural diagram of a position collar provided in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a positioning block according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a socket steel ring provided in the embodiment of the present invention;
fig. 5 is a schematic structural diagram of a nodular cast iron jacking pipe casting process provided by the embodiment of the utility model;
FIG. 6 is a schematic cross-sectional structure diagram of a nodular cast iron jacking pipe casting process provided by an embodiment of the utility model;
FIG. 7 is a schematic cross-sectional structure view of a nodular cast iron jacking pipe provided in an embodiment of the utility model;
FIG. 8 is an enlarged view of circle A of FIG. 7;
description of reference numerals:
1. a nodular cast iron pipe core; 11. a socket; 12. a socket; 2. a positioning collar; 21. positioning a groove; 3. adjusting a rod; 31 a vertical portion; 311. a first adjustment member; 32. a horizontal portion; 321; a second adjustment member; 4. positioning blocks; 41; a notch; 42. fixing grooves; 5. a steel ring of the socket; 51. a protrusion; 6. a reinforcing mesh; 7. a concrete layer; 71. a socket plane; 8. pouring a template; 81. an interlayer; 9. and (4) sealing the flange.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Referring to fig. 1, fig. 2 and fig. 6 together, the positioning device for casting the nodular cast iron jacking pipe provided by the utility model will be described. The positioning device for casting the nodular cast iron jacking pipe comprises a positioning lantern ring 2, a plurality of adjusting rods 3 and a plurality of positioning blocks 4; the positioning lantern ring 2 is used for being nested outside the nodular cast iron pipe core 1 and is arranged close to the socket 11 of the nodular cast iron pipe core 1; the adjusting rods 3 are distributed at equal intervals along the circumferential direction of the positioning lantern ring 2 and are fixedly arranged on the top surface of the positioning lantern ring 2; each adjusting rod 3 is connected with a first adjusting piece 311 used for being abutted against the outer wall of the nodular cast iron pipe core 1, and/or each adjusting rod 3 is connected with a second adjusting piece 321 used for being abutted against the end face of the insertion opening 11 of the nodular cast iron pipe core 1; the positioning blocks 4 are distributed at equal intervals along the circumferential direction of the positioning lantern ring 2 and are detachably arranged on the bottom surface of the positioning lantern ring 2; the inner circumferential surface of each positioning block 4 is used for being abutted against the outer wall surface of the nodular cast iron pipe core 1; the top surfaces of the plurality of positioning blocks 4 cooperate together to define a spigot plane 71 for concrete casting.
Before concrete is poured, the positioning lantern ring 2 is sleeved on the socket 11 end of the nodular cast iron pipe core 1, the plurality of first adjusting pieces 311 are adjusted to be in the same initial state, for example, the end faces of the first adjusting pieces 311 are all parallel to the end face, close to the outer wall of the nodular cast iron pipe core 1, of the adjusting rod 3, then the plurality of first adjusting pieces 311 are operated in the same mode until the plurality of first adjusting pieces 311 are all abutted to the outer wall of the nodular cast iron pipe core 1, and at the moment, the positioning lantern ring 2 and the nodular cast iron pipe 1 are in a coaxial state; if the end surface of the socket 11 of the nodular cast iron pipe core 1 is uneven due to poor casting process, the second adjusting piece 321 needs to be finely adjusted until the end surface of the positioning lantern ring 2 is perpendicular to the outer wall of the nodular cast iron pipe core 1; the first adjusting piece 311 and the second adjusting piece 321 have the adjusting function and also have the function of fixing the positioning lantern ring 2; after the positioning sleeve ring 2 is positioned, the positioning blocks 4 are sequentially abutted against the bottom surface of the positioning sleeve ring 2, and the inner circumferential surface of the positioning blocks 4 is fixedly connected with the outer wall of the nodular cast iron pipe core 1, wherein the fixing can be performed in a welding mode; after all the positioning blocks 4 are fixed in position, the positioning lantern ring 2 is taken down from the outer wall of the nodular cast iron pipe core 1; the plane enclosed by the top surfaces of the positioning blocks 4 is used as a reference for pouring concrete later to form the socket plane 71.
Compared with the prior art, the positioning device for casting the nodular cast iron jacking pipe provided by the embodiment of the utility model has the advantages that before concrete is cast, the detachable positioning lantern ring 2 is sleeved on the outer wall of the nodular cast iron pipe core 1, the same adjusting method is adopted for a plurality of first adjusting pieces 311 in the same initial state on the adjusting rod 3 until the first adjusting pieces can be abutted against the outer wall of the nodular cast iron pipe core 1, and then the end surface of the positioning lantern ring 2 is perpendicular to the outer wall of the nodular cast iron pipe core 1 by finely adjusting the second adjusting pieces 321; the end face of the positioning lantern ring 2 is utilized to position a plurality of positioning blocks 4 which are arranged at intervals on the outer wall of the nodular cast iron pipe core 1, the positioning blocks 4 are fixedly connected with the outer wall of the nodular cast iron pipe core 1, a plane formed by surrounding the positioning blocks 4 is perpendicular to the axial direction of the nodular cast iron pipe core 1, the socket plane 71 formed by concrete pouring with the positioning blocks 4 as the reference is guaranteed to be perpendicular to the axial direction of the nodular cast iron pipe jacking, the quality of the pipe jacking is improved, the socket plane 71 is enabled to be evenly stressed in the forward propelling process of the nodular cast iron pipe jacking, and the service life of the pipe jacking is prolonged.
Preferably, the first adjusting member 311 and the second adjusting member 321 are both adjusting bolts. Adjusting bolt simple structure, the operation of being convenient for, when the outer wall of the position lantern ring 2 and nodular cast iron tube core 1 can not the laminating, only need with the same adjusting screw of initial condition the same number of turns of rotation towards same direction until its outer wall butt with nodular cast iron tube core 1 can guarantee the bottom surface of the position lantern ring 2 and the outer wall mutually perpendicular of nodular cast iron tube core 1.
In some possible embodiments, as shown in fig. 1 and 2, the adjusting rod 3 comprises a vertical part 31 and a horizontal part 32, wherein the bottom end of the vertical part 31 is fixedly arranged on the top surface of the positioning collar 2, and the top end extends upwards to the upper part of the end surface of the spigot 11 of the nodular cast iron pipe core 1; one end of the horizontal part 32 is fixedly connected with the top end of the vertical part 31, and the other end extends into the nodular cast iron pipe core 1 along the radial direction of the nodular cast iron pipe core 1; the first regulating member 311 is provided on the vertical portion 31, and the second regulating member 321 is provided on the horizontal portion 32. The adjusting rod 3 is a rigid rod, one end of the vertical part 31 is fixedly connected with the top surface of the positioning lantern ring 2, and the other end is fixedly connected with the horizontal part 32; horizontal part 32 and nodular cast iron tube core 1's terminal surface butt, can prevent the locating collar 2 landing downwards at the socket 11 end of the vertical nodular cast iron tube core 1 of placing with the preliminary joint of locating collar 2, be convenient for follow-up carry out position control or fixed to the locating collar 2.
In some possible embodiments, as shown in fig. 2, a plurality of positioning grooves 21 are distributed on the lower end surface of the positioning collar 2 at equal intervals along the circumferential direction, and the plurality of positioning grooves 21 correspond to the positioning blocks 4 one to one for placing the positioning blocks 4. Set up constant head tank 21 on the position collar 2 and can conveniently fix a position locating piece 4, make that the staff can be fast accurate with locating piece 4 welding to assigned position, make arranging of locating piece 4 neatly draw one simultaneously, conveniently confirm socket plane 71.
Specifically, the positioning groove 21 penetrates in the radial direction of the positioning collar 2; the top surface of the positioning block 4 is provided with a notch 41, and the notch 41 is correspondingly inserted into the positioning groove 21. The positioning block 4 is provided with the notch 41, so that the positioning block 4 can be prevented from sliding along the direction of the positioning groove 21, and the positioning block 4 can be conveniently fixed; the locating lantern ring 2 or the locating block 4 can be magnetized by a magnetizing device to have certain magnetism, so that the position of the locating block 4 is conveniently and preliminarily fixed before welding.
In some possible embodiments, as shown in fig. 3 and 6, the bottom surface of the positioning block 4 is provided with a fixing groove 42, and the fixing groove 42 is used for fixing the steel mesh 6. The reinforcing mesh 6 plays a vital role in the strength of the nodular cast iron jacking pipe, but under the condition that no fixing measure is taken, the reinforcing mesh 6 is easily distributed unevenly in the concrete layer 7, and even the concrete layer 7 is exposed seriously, so that the reinforcing mesh 6 is gradually corroded, and the strength of the nodular cast iron jacking pipe is influenced; the bottom surface of the positioning block 4 is provided with a positioning groove 21, after the positioning block 4 is positioned, the reinforcing mesh 6 is placed in the positioning groove 21, and the reinforcing mesh 6 is welded with the positioning block 4, so that the reinforcing mesh 6 is uniformly distributed in the concrete layer 7, and the product quality of the pipe jacking is improved.
Specifically, as shown in fig. 5, after the steel bar mesh 6 is fixedly connected with the positioning block 4, the annular casting template 8 is installed on the periphery of the steel bar mesh 6, the outer wall of the nodular cast iron pipe core 1 and the inner wall of the casting template 8 form an interlayer 81 for casting concrete therein, and the sealing flange 9 seals and connects the bottom end of the casting template 8 and the socket 12 end of the nodular cast iron pipe core 1 to prevent slurry leakage.
In some possible embodiments, as shown in fig. 7 and 8, the positioning device for casting the nodular cast iron top pipe further comprises a socket steel ring 5; after the positioning lantern ring 2 is detached from and separated from the positioning blocks 4, the socket steel rings 5 are arranged on the top surfaces of the positioning blocks 4; the socket steel ring 5 is used for reinforcing the socket plane 71. The concrete has high hardness, but the toughness is poor, and the concrete is easy to break, so the spigot plane 71 formed by pouring the concrete needs to be further reinforced by the spigot steel ring 5; as shown in fig. 4 and 6, an annular protrusion 51 is arranged on one end surface of the socket steel ring 5, and after the protrusion 51 is clamped in the notch 41 of the positioning block 4, the socket steel ring 5 is welded with the outer wall of the nodular cast iron pipe core 1; when concrete is poured, the pouring plane of the concrete is flush with the end face, facing the socket 11, of the positioning block 4, the positioning block 4 is wrapped by the concrete layer 7 to prevent the positioning block from being exposed, and the socket plane 71 is formed after the concrete plane is solidified.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. The utility model provides a nodular cast iron push pipe is pour and is used positioner, its characterized in that includes:
the positioning lantern ring is used for being nested outside the nodular cast iron pipe core and is arranged close to the socket of the nodular cast iron pipe core;
the adjusting rods are distributed at equal intervals along the circumferential direction of the positioning lantern ring and are fixedly arranged on the top surface of the positioning lantern ring; each adjusting rod is connected with a first adjusting piece which is used for being abutted against the outer wall of the nodular cast iron pipe core, and/or each adjusting rod is connected with a second adjusting piece which is used for being abutted against the socket end face of the nodular cast iron pipe core;
the positioning blocks are distributed at equal intervals along the circumferential direction of the positioning lantern ring and are detachably arranged on the bottom surface of the positioning lantern ring; the inner circumferential surface of each positioning block is used for being abutted against the outer wall surface of the nodular cast iron pipe core; the top surfaces of the positioning blocks are matched together to determine a socket plane for pouring concrete.
2. The positioning device for nodular cast iron jacking pipe pouring according to claim 1, wherein the first adjusting piece and the second adjusting piece are both adjusting bolts.
3. The positioning device for nodular cast iron top pipe casting as claimed in claim 1 or 2, wherein the adjusting rod comprises:
the bottom end of the vertical part is fixedly arranged on the top surface of the positioning sleeve ring, and the top end of the vertical part extends upwards to the upper part of the socket end surface of the nodular cast iron pipe core; and
one end of the horizontal part is fixedly connected with the top end of the vertical part, and the other end of the horizontal part extends into the nodular cast iron pipe core along the radial direction of the nodular cast iron pipe core;
wherein the first adjusting member is provided on the vertical portion, and the second adjusting member is provided on the horizontal portion.
4. The positioning device for nodular cast iron jacking pipe pouring according to claim 1, wherein a plurality of positioning grooves are distributed on the lower end surface of the positioning sleeve ring at equal intervals along the circumferential direction, and the plurality of positioning grooves correspond to the positioning blocks one to one and are used for placing the positioning blocks.
5. The positioning device for nodular cast iron jacking pipe pouring according to claim 4, wherein the positioning groove penetrates in the radial direction of the positioning lantern ring; the top surface of locating piece is equipped with the breach, the breach with the constant head tank corresponds the grafting.
6. The positioning device for nodular cast iron pipe jacking pouring according to claim 1, wherein the bottom surface of the positioning block is provided with a fixing groove, and the fixing groove is used for fixing a reinforcing mesh.
7. The positioning device for top pipe pouring of nodular cast iron according to claim 1, wherein the positioning device for top pipe pouring of nodular cast iron further comprises a socket steel ring;
after the positioning lantern ring is detached and separated from the positioning blocks, the socket steel rings are arranged on the top surfaces of the positioning blocks; the socket steel ring is used for reinforcing the socket plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120790034.0U CN215618961U (en) | 2021-04-16 | 2021-04-16 | Positioning device for pouring nodular cast iron jacking pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120790034.0U CN215618961U (en) | 2021-04-16 | 2021-04-16 | Positioning device for pouring nodular cast iron jacking pipe |
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| Publication Number | Publication Date |
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| CN215618961U true CN215618961U (en) | 2022-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120790034.0U Active CN215618961U (en) | 2021-04-16 | 2021-04-16 | Positioning device for pouring nodular cast iron jacking pipe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116753360A (en) * | 2023-08-11 | 2023-09-15 | 江苏日升电力机械有限公司 | Connecting device for top pipe of spheroidal graphite cast iron pipe |
-
2021
- 2021-04-16 CN CN202120790034.0U patent/CN215618961U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116753360A (en) * | 2023-08-11 | 2023-09-15 | 江苏日升电力机械有限公司 | Connecting device for top pipe of spheroidal graphite cast iron pipe |
| CN116753360B (en) * | 2023-08-11 | 2023-10-20 | 江苏日升电力机械有限公司 | Connecting device for top pipe of spheroidal graphite cast iron pipe |
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