CN219755529U

CN219755529U - Concrete push pipe

Info

Publication number: CN219755529U
Application number: CN202320939832.4U
Authority: CN
Inventors: 陈学武; 王世林; 高春磊; 郭晓东; 尚艳斌; 王振亮; 闫伊龙; 樊建飞
Original assignee: Zhengzhou Chenxiang Shield Segment Co ltd
Current assignee: Zhengzhou Chenxiang Shield Segment Co ltd
Priority date: 2023-04-24
Filing date: 2023-04-24
Publication date: 2023-09-26
Anticipated expiration: 2033-04-24

Abstract

The utility model belongs to the field of underground pipeline construction, and discloses a concrete jacking pipe, which comprises a pipe joint, wherein an inserting ring is integrally formed at one end of the pipe joint, an inserting groove which is in inserting fit with the inserting ring is formed at the other end of the pipe joint, a rubber ring is fixed on the end face of the inserting ring, an annular groove which is matched with the rubber ring is formed on the inserting groove, and the surface of the rubber ring is abutted against the inner surface of the annular groove. The utility model changes the phenomenon that the sealing of the splicing part between two adjacent pipe joints is difficult to maintain in the prior art.

Description

Concrete push pipe

Technical Field

The utility model relates to the field of underground pipeline construction, in particular to a concrete jacking pipe.

Background

The concrete jacking pipe is a sewage pipe which is formed by taking cement, reinforcing steel bars, sand, stones and the like as raw materials and stirring by a centrifugal machine, is mainly used for drainage tasks such as urban rainwater, sewage or farmland drainage and irrigation, and has the advantages of no influence on surrounding environment or less influence, small construction site, low noise and deep underground operation.

The Chinese patent publication No. CN214405031U discloses a concrete jacking pipe, which comprises a first pipe joint and a second pipe joint which are coaxially connected, wherein the first pipe joint and the second pipe joint are clamped or separated through a rotary clamping structure; the rotary clamping structure comprises a groove arranged on the first pipe joint and a flange arranged on the second pipe joint; one end of the groove is provided with a notch which can enable the flange to slide into the groove; bolts vertically penetrate through the vertical edges of the L-shaped flanges, the flanges slide into the grooves to be clamped with the grooves, and meanwhile, the bolts on the flanges are in threaded connection with the bolt holes on the grooves; one end of the first pipe joint and one end of the second pipe joint, which are connected with each other, are respectively provided with a faucet and a faucet, the outer wall of the faucet is provided with a faucet step, and the inner wall of the faucet is provided with a faucet step; the faucet is inserted in the faucet, and the outer wall of the faucet is tightly matched with the inner wall of the faucet.

When the technology is used for construction, each time a section is driven forward, a new pipe joint is assembled at the rear part of the technology, when the adjacent pipe joints are in butt joint connection, the two pipe joints are required to be spliced and rotated, the pipe joints are usually made of concrete, the weight is large, the construction difficulty of rotation operation is large, the joint between the two adjacent pipe joints is difficult to keep sealed, and the possibility of water seepage exists, so that related improvement is required.

Disclosure of Invention

In order to solve the problems, the utility model provides a concrete jacking pipe.

The technical aim of the utility model is realized by the following technical scheme:

the utility model provides a concrete push pipe, includes the tube coupling, tube coupling one end integrated into one piece has the grafting ring, the other end of tube coupling is provided with the grafting groove with grafting ring grafting complex, grafting ring end face is fixed with the rubber circle, be provided with on the grafting groove with rubber circle complex annular groove, rubber circle surface and annular groove's internal surface support tightly.

Through adopting above-mentioned technical scheme, in the work progress of underground pre-buried concrete push pipe, the staff is at first aimed at the grafting groove of another tube coupling with the grafting ring of tube coupling, later with the rig butt of foremost tube coupling and drilling equipment head to push forward with the help of pushing equipment with rearmost tube coupling, in this process, the rubber circle is pegged graft under the pushing effect and is cooperated with annular groove, has strengthened the leakproofness of being connected between the adjacent tube coupling.

Further, a plurality of axial steel bars are preset in the pipe joint, iron rings are fixed at the end parts of the axial steel bars together, and the rubber rings are fixed with the iron rings through fixing pieces.

Through adopting above-mentioned technical scheme, strengthened the fastness of hoop, utilize mounting fixed rubber circle simultaneously to the staff is fixed in the grafting ring tip of tube coupling with the rubber circle.

Further, the fixing piece is a steel wire with a spiral extending direction, the iron ring is penetrated with a through hole for the steel wire to pass through, and the steel wire is spirally wound on the outer side of the rubber ring and binds the rubber ring and the iron ring.

Through adopting above-mentioned technical scheme, the steel wire passes the perforation and twines on the rubber ring to realize fixed rubber ring and hoop.

Further, a round corner is formed at the intersection between the notch of the annular groove and the inner bottom wall of the inserting groove.

Through adopting above-mentioned technical scheme, the setting of fillet portion has reduced the degree of difficulty that the rubber circle got into in the annular groove.

Further, a spiral groove for accommodating the steel wire is formed in the rubber ring.

Through adopting above-mentioned technical scheme for the steel wire is whole to be buried in the rubber circle inside, when the cooperation of rubber circle and annular groove, has reduced the probability that the steel wire damaged annular groove internal surface.

Further, the outer surface of the plug-in ring is provided with an annular sealing rubber sheet, and the annular sealing rubber sheet is abutted against the inner surface of the plug-in groove.

By adopting the technical scheme, the plugging stability of the plugging ring and the plugging groove is enhanced, and the overall sealing performance of the pipe joint is improved.

Further, the cross section of annular sealing rubber piece is L shape, the intersection department between the lateral wall that the pipe section axis one side was kept away from to the hoop and the surface that the hoop is close to rubber circle one side has seted up with annular sealing rubber piece's horizontal part complex annular breach.

Through adopting above-mentioned technical scheme, be equipped with the step groove on the hoop, make annular sealing rubber piece cover card on the hoop, let the sealing rubber piece of close annular sealing rubber piece seal the rubber piece closely laminate in grafting ring and grafting groove more, further improved the whole leakproofness of tube coupling.

In summary, the utility model has the following beneficial effects:

1. in the construction process of the underground embedded concrete jacking pipe, a worker firstly aligns the plugging ring of one pipe section with the plugging groove of the other pipe section, then the pipe section at the forefront is abutted with the drilling machine at the head of the drilling equipment, the pipe section at the rearmost side is pushed forwards by means of the pushing equipment, and in the process, the rubber ring is in plugging fit with the annular groove under the pushing action, so that the tightness of connection between the adjacent pipe sections is enhanced;

2. according to the utility model, the spiral groove for accommodating the steel wire is arranged on the rubber ring, so that the steel wire is wholly buried in the rubber ring, and when the rubber ring is matched with the annular groove, the probability of damaging the inner surface of the annular groove by the steel wire is reduced;

3. according to the utility model, the step groove is arranged on the iron ring, so that the annular sealing rubber sheet is clamped on the iron ring, and the annular sealing rubber sheet is more closely attached to the inserting ring and the inserting groove, thereby further improving the overall sealing property of the pipe joint.

Drawings

FIG. 1 is a schematic overall structure of an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of an embodiment of the present utility model;

FIG. 3 is an enlarged schematic view at A in FIG. 2;

FIG. 4 is a schematic view of a construction of an embodiment of the present utility model for highlighting an iron ring;

fig. 5 is a schematic cross-sectional view showing the structure of the spiral groove and the perforation according to the embodiment of the present utility model.

Reference numerals in the drawings:

1. a pipe section; 11. a plug ring; 12. a plug-in groove; 121. an annular groove; 13. a rounded corner portion; 2. a rubber ring; 21. a spiral groove; 3. axial reinforcing steel bars; 4. an iron ring; 41. perforating; 42. an annular gap; 5. an annular sealing rubber sheet; 6. and a fixing piece.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.

The embodiment of the utility model discloses a concrete jacking pipe.

As shown in fig. 1 to 5, the concrete jacking pipe comprises a pipe joint 1, a rubber ring 2, an axial reinforcing steel bar 3, an iron ring 4 and an annular sealing rubber sheet 5. The pipe joint 1 is of a circular pipe-shaped structure, one end of the pipe joint 1 is integrally formed with an annular inserting ring 11, the other end of the pipe joint 1 is provided with an inserting groove 12, and the inserting groove 12 is in inserting fit with the inserting ring 11.

The rubber ring 2 is made of annular rubber, the rubber ring 2 is fixed with the end face of the plug ring 11, the plug groove 12 is provided with an annular groove 121 matched with the rubber ring 2, and the surface of the rubber ring 2 is abutted against the inner surface of the annular groove 121.

The fixing mode of the rubber ring 2 and the plug ring 11 is specifically as follows: a plurality of axial steel bars 3 (the axial direction of the axial steel bars 3 is parallel to the axial direction of the pipe joint 1) are preset in the pipe joint 1, iron rings 4 are jointly fixed at the end parts of the axial steel bars 3, and the rubber rings 2 and the iron rings 4 are fixed through fixing pieces. In this embodiment, the fixing member is a steel wire, the extending direction of the steel wire is spiral, the iron ring 4 is penetrated and provided with a through hole 41 for the steel wire to pass through, the steel wire is spirally wound on the outer side of the rubber ring 2, and the rubber ring 2 is provided with a spiral groove 21 for accommodating the steel wire, so that the steel wire binds the rubber ring 2 and the iron ring 4. In the construction process of the underground embedded concrete jacking pipe, a worker firstly aligns the plugging ring 11 of the pipe section 1 with the plugging groove 12 of the other pipe section 1, then abuts the pipe section 1 at the forefront end with a drilling machine at the head of the drilling equipment, and pushes the pipe section 1 at the rearmost side forwards by means of pushing equipment, in the process, the rubber ring 2 is in plugging fit with the annular groove 121 under the pushing action, so that the tightness of connection between the adjacent pipe sections 1 is enhanced. During the forward advancement of the pipe section 1, the spiral groove 21 accommodates the steel wire, so that the probability of scraping the steel wire against the inner surface of the annular groove 121 is reduced, and the structural integrity of the pipe section 1 is effectively protected.

In order to change the possibility of water seepage in the traditional pipe joint 1 plugging process, the pipe joint 1 adopts the tight fit of the rubber ring 2 and the annular groove 121, so that the tightness of the plugging ring 11 and the plugging groove 12 in the pipe joint 1 plugging process is improved.

In the embodiment, the round corner 13 is formed at the intersection between the notch of the annular groove 121 of the pipe joint 1 and the inner bottom wall of the inserting groove 12, so that the difficulty in inserting the rubber ring 2 into the annular groove 121 is reduced.

In order to strengthen the tightness of the connection between the adjacent pipe sections 1, the outer surface of the plugging ring 11 is provided with an annular sealing rubber sheet 5, and the annular sealing rubber sheet 5 is abutted against the inner surface of the plugging groove 12 and the outer surface of the plugging ring 11 in the plugging process of the pipe sections 1 so as to strengthen the tightness of the connection between the adjacent pipe sections 1.

In this embodiment, the cross section of the annular sealing rubber sheet 5 is L-shaped, the iron ring 4 is provided with an annular notch 42 for accommodating the horizontal portion of the annular sealing rubber sheet 5, and the annular notch 42 is located at the intersection between the side wall of the iron ring 4 on the side far from the axis of the pipe joint 1 and the surface of the iron ring 4 on the side close to the rubber ring 2, so that the annular notch 42 is tightly attached to the sealing rubber sheet.

The use principle of the concrete push pipe in the embodiment is as follows:

in the construction process of the underground embedded concrete jacking pipe, a worker firstly aligns the plugging ring 11 of the pipe section 1 with the plugging groove 12 of the other pipe section 1, then abuts the pipe section 1 at the forefront end with a drilling machine at the head of the drilling equipment, and pushes the pipe section 1 at the rearmost side forwards by means of pushing equipment, in the process, the rubber ring 2 is in plugging fit with the annular groove 121 under the pushing action, so that the tightness of connection between the adjacent pipe sections 1 is enhanced.

The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims

1. The utility model provides a concrete push pipe, includes tube coupling (1), its characterized in that, tube coupling (1) one end integrated into one piece has grafting ring (11), the other end of tube coupling (1) is provided with grafting groove (12) with grafting ring (11) grafting complex, grafting ring (11) terminal surface is fixed with rubber circle (2), be provided with on grafting groove (12) with rubber circle (2) complex annular groove (121), rubber circle (2) surface supports tightly with annular groove (121) internal surface.

2. The concrete push pipe according to claim 1, wherein a plurality of axial steel bars (3) are preset in the pipe section (1), iron rings (4) are jointly fixed at the ends of the axial steel bars (3), and the rubber rings (2) and the iron rings (4) are fixed through fixing pieces (6).

3. A concrete push pipe according to claim 2, characterized in that the fixing member (6) is a steel wire with a spiral extending direction, the iron ring (4) is provided with a through hole (41) for the steel wire to pass through, and the steel wire is spirally wound on the outer side of the rubber ring (2) and binds the rubber ring (2) with the iron ring (4).

4. A concrete push pipe according to claim 3, characterized in that the intersection between the notch of the annular groove (121) and the inner bottom wall of the insertion groove (12) is rounded (13).

5. A concrete push pipe according to claim 4, characterized in that the rubber ring (2) is provided with a spiral groove (21) for accommodating a steel wire.

6. A concrete push pipe according to claim 5, characterized in that the outer surface of the plug ring (11) is provided with an annular sealing rubber sheet (5), and the annular sealing rubber sheet (5) abuts against the inner surface of the plug groove (12).

7. The concrete push pipe according to claim 6, wherein the cross section of the sealing rubber sheet is L-shaped, and an annular gap (42) matched with the horizontal part of the sealing rubber sheet is formed at the intersection between the side wall of the side of the iron ring (4) far away from the axis of the pipe joint (1) and the surface of the side of the iron ring (4) close to the rubber ring (2).