CN214405031U - Large-diameter reinforced concrete jacking pipe - Google Patents

Abstract

A large-diameter reinforced concrete jacking pipe 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 and are clamped with the grooves, and meanwhile the bolts on the flanges are in threaded connection with bolt holes on the grooves; a socket and a faucet are respectively arranged at one end of the first pipe joint and the second pipe joint which are connected with each other, a socket step is arranged on the outer wall of the socket, and a receiving step is arranged on the inner wall of the faucet; the socket is inserted in the socket, and the outer wall of the socket and the inner wall of the socket are tightly matched together. The utility model discloses can practice thrift a large amount of on-the-spot installation time, realize effective fastening connection to consolidate the connection of adjacent tube coupling.

Description

Large-diameter reinforced concrete jacking pipe

Technical Field

The utility model relates to a non-excavation engineering push pipe technical field especially relates to a major diameter reinforced concrete push pipe.

Background

In recent years, with the development and scientific progress of society, trenchless technology, especially pipe jacking construction technology, is rapidly developed and applied. The pipe-jacking construction is that the friction force between the pipeline and the soil body is overcome by means of the jacking force of jacking equipment in a working pit, the pipeline is jacked into the soil according to the designed gradient, and after one pipe body enters the soil layer, the pipe body is placed into a second pipe body, and the earthwork is transported out.

The trenchless pipe jacking technology is widely applied to the field of municipal engineering and road engineering, wherein underground pipelines of cities penetrate through and are laid, particularly electric power pipelines, a large-diameter reinforced concrete pipe is taken as a main part, the form of a joint of the reinforced concrete pipe is mostly a section steel bell mouth, the requirement on the waterproof performance of the joint of a pipe jacking pipe joint is usually high in pipeline construction, and the two sections of pipelines are required to be tightly connected together in the pushing process of the pipe jacking. However, the traditional jacking pipe only adopts simple connection in engineering application, the connection mode is fragile, the sealing performance is poor, and the conditions of offset and dislocation and water leakage of a pipe joint connector are easy to occur, so that the progress of jacking pipe construction and the engineering quality are influenced. Therefore, a large-diameter reinforced concrete jacking pipe connecting method is provided.

Disclosure of Invention

In order to overcome the problems, the utility model provides a large-diameter reinforced concrete jacking pipe.

The utility model adopts the technical proposal that: a large-diameter reinforced concrete jacking pipe 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 second pipe joint is provided with a plurality of L-shaped flanges which are arranged in a circumferential array relative to the axis of the second pipe joint; the first pipe joint is used for assembling a groove corresponding to the flange on the corresponding surface of the second pipe joint, the grooves are arranged in a circumferential array mode relative to the axial lead of the first pipe joint, and one end of each groove is provided with a notch enabling the flange to slide into the groove; bolts vertically penetrate through the vertical edges of the L-shaped flanges, and bolt holes are formed in the positions, corresponding to the bolts, of the grooves; the flange slides into the groove and is clamped with the groove, and meanwhile, the bolt on the flange is in threaded connection with the bolt hole on the groove;

one end of the first pipe joint, which is connected with the second pipe joint, is provided with a bell socket and a spigot joint respectively, the outer wall of the bell socket is provided with a bell socket step, and the inner wall of the spigot joint is provided with a bearing step; the socket is inserted in the socket, and the outer wall of the socket and the inner wall of the socket are tightly matched together.

Furthermore, the outer wall of the socket and the inner wall of the socket are coated with waterproof coatings.

The utility model has the advantages that: (1) this connected mode of major diameter concrete push pipe is in the same place by bell and spigot, recess and tongue zonulae occludens, and wherein tongue, recess, bolt hole, round hole, bellmouth and bell and spigot all prefabricate in the mill, transport on-the-spot back direct mount, or combine the push pipe jacking equipment to install, can practice thrift a large amount of on-the-spot installation time.

(2) Before the large-diameter concrete jacking pipe is connected, a sealing material is uniformly coated on the outer surface of the socket and the inner surface of the socket, and waterproof coating treatment is carried out, so that after the socket and the socket are connected together, water in a soil layer is blocked on the outer surface of the jacking pipe joint, and the jacking pipe waterproof effect is effectively achieved.

(3) There is the bolt hole the recess outside, and there is the round hole the tongue inboard, and bolt hole diameter and round hole diameter are unanimous, the round hole internal surface is smooth concrete face, bolt hole internal surface is screwed concrete face, and effective fastening connection can be realized with the bolt hole to the bolt when the bolt precession to consolidate the connection of adjacent tube coupling.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the first pipe section.

Fig. 3 is a longitudinal cross-sectional view of the first pipe section.

Fig. 4 is a schematic structural view of a second pipe section.

Fig. 5 is a side view of the bolt.

Fig. 6 is a top view of the bolt.

Description of reference numerals: 1. a first pipe section; 2. a groove; 3. a bell and spigot joint; 4. bolt holes; 5. a second pipe section; 6. a flange; 7. a socket; 8. a circular hole; 9. and (4) bolts.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., appear based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to the drawings, a first embodiment of the present invention provides a large-diameter reinforced concrete pipe jacking, comprising a first pipe joint 1 and a second pipe joint 5 which are coaxially connected, wherein the first pipe joint 1 and the second pipe joint 5 are clamped or separated by a rotary clamping structure; the rotary clamping structure comprises a groove 2 arranged on the first pipe joint 1 and a flange 6 arranged on the second pipe joint 5;

one end of the second pipe joint 5 is provided with four L-shaped flanges 6, and the four flanges 6 are arranged in a circumferential array relative to the axial lead of the second pipe joint 5; the corresponding surface of the first pipe joint 1, which is used for assembling the second pipe joint 5, is provided with grooves 2 corresponding to the flanges 6, the grooves 2 are arranged in a circumferential array relative to the axial lead of the first pipe joint 1, one end of each groove 2 is provided with a notch which can enable the flanges 6 to slide into the grooves 2, and the flanges 6 slide into the grooves 2 and rotate clockwise to be clamped with the grooves 2; wherein the groove 2 and the flange 6 are produced according to a given specification at the time of factory production. A round hole 8 is formed in the vertical edge of the L-shaped flange 6, the axis of the round hole 8 is perpendicular to the vertical edge of the L-shaped flange 6, the inner wall of the round hole 8 is smooth, a bolt 9 penetrates through the round hole 8, a bolt hole 4 is formed in the position, corresponding to the bolt 9, of the groove 2, and threads are arranged in the bolt hole 4; meanwhile, the bolt 9 on the flange 6 is in threaded connection with the bolt hole 4 on the groove 2; when the tube coupling installation, round hole 8 is put into to bolt 9, treat first tube coupling 1 and the second tube coupling 5 after assembling in proper order with bolt 4 precession bolt hole 4 to fixed two tube couplings and link into a whole with two tube couplings.

Specifically, bolt 9 is the steel structure that the front end distributes and has screw thread, the smooth and flat back end in middle and back part surface, bolt 9 diameter ratio the round hole 8 diameter is slightly littleer, bolt 9 diameter ratio the bolt hole 4 diameter is slightly littleer, bolt 9 can with bolt hole 4 and round hole 8 zonulae occludens prevent that the tube coupling from taking place the phenomenon of dislocation.

One end of the first pipe joint 1, which is connected with the second pipe joint 5, is provided with a bell socket 3 and a socket 7 respectively, the outer wall of the bell socket 3 is provided with a bell socket step, and the inner wall of the socket 7 is provided with a bearing step; the outer diameter of the socket 3 is matched with the inner diameter of the socket 7, the socket 3 can be ensured to be inserted into the socket 7, before the pipe joint is installed, waterproof coating treatment is carried out on the outer wall of the socket 3 and the inner wall of the socket 7, sealing materials can be uniformly coated on the outer surface of the socket and the inner surface of the socket, and therefore the pipe joint is ensured to be tightly attached between the socket and the socket after the pipe joint is installed. Specifically, the bell and spigot 3 of the first pipe joint 1 is a structure formed by reinforced concrete, and the first pipe joint 1 and the second pipe joint 5 are also formed by reinforced concrete and meet the requirement of extrusion strength of the jacking pipe.

The second embodiment of the utility model provides a method for connecting major diameter reinforced concrete push pipes: during the site operation installation, put into the round hole of flange with the bolt in advance, treat that the flange of second tube coupling gets into the recess of first tube coupling clockwise rotation after smoothly, recess and draw-in groove one-to-one block each other, in the bolt hole with the bolt precession recess again, fix first tube coupling and second tube coupling and form a whole, prevent to take place the condition emergence that the counter rotation leads to breaking away from at the push pipe jacking in-process. The contact surface of the two parts of pipe bodies is subjected to waterproof sealing treatment. The invention can tightly connect the large-diameter concrete jacking pipes, has good sealing performance between pipe joints, and can efficiently save the field installation time.

The embodiments described in this specification are merely illustrative of implementations of the inventive concepts, and the scope of the invention should not be considered limited to the specific forms set forth in the embodiments, but rather the scope of the invention is intended to include equivalent technical means as would be understood by those skilled in the art from the inventive concepts.

Claims (2)

1. The utility model provides a major diameter reinforced concrete push pipe which characterized in that: the pipe joint comprises a first pipe joint (1) and a second pipe joint (5) which are coaxially connected, wherein the first pipe joint (1) and the second pipe joint (5) are clamped or separated through a rotary clamping structure; the rotary clamping structure comprises a groove (2) arranged on the first pipe joint (1) and a flange (6) arranged on the second pipe joint (5);

one end of the second pipe joint (5) is provided with a plurality of L-shaped flanges (6), and the flanges (6) are arranged in a circumferential array relative to the axial lead of the second pipe joint (5); the corresponding surface of the first pipe joint (1) for assembling the second pipe joint (5) is provided with grooves (2) corresponding to the flanges (6), the grooves (2) are arranged in a circumferential array relative to the axial lead of the first pipe joint (1), and one end of each groove (2) is provided with a notch which can enable the flanges (6) to slide into the grooves (2); bolts (9) vertically penetrate through the vertical edges of the L-shaped flanges (6), and bolt holes (4) are formed in the positions, corresponding to the bolts (9), of the grooves (2); the flange (6) slides into the groove (2) and is clamped with the groove (2), and meanwhile, a bolt (9) on the flange (6) is in threaded connection with a bolt hole (4) on the groove (2);

one end of the first pipe joint (1) and one end of the second pipe joint (5) which are connected with each other are respectively provided with a bell and spigot (3) and a socket (7), the outer wall of the bell and spigot (3) is provided with a bell and spigot step, and the inner wall of the socket (7) is provided with a bearing step; the bell and spigot joint (3) is inserted in the socket (7), and the outer wall of the bell and spigot joint (3) is tightly matched with the inner wall of the socket (7).

2. A large diameter reinforced concrete push pipe as claimed in claim 1, wherein: and waterproof coatings are coated on the outer wall of the socket (3) and the inner wall of the socket (7).

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