Full-width socket type connecting piece for pipe jacking connection

Abstract

The utility model discloses a full-width socket and spigot joint type connecting piece for pipe jacking connection. The full-width socket and spigot joint type connecting piece comprises an outer rubber ring, a filling boss, a sealing boss and an abutting piece. The filling bosses are of an arc-shaped circular ring structure and symmetrically distributed on the two sides of the inner wall of the outer rubber ring to assist in supporting and sealing. The sealing boss is provided with an inclined plane and a vertical plane to guarantee smooth insertion and tight sealing of the pipe end. The abutting piece is arranged between the two sets of sealing bosses in the middle and integrally formed with the rubber ring, a traditional annular fiberboard is replaced, and inter-pipe pressure is effectively borne. According to the utility model, the installation process is simplified, and the rubber ring is sleeved at one end of the well casing and then inserted; the installation time is saved, and the procedures of half-width rubber ring splicing and fiberboard placing are omitted; and the integrated design is adopted, so that the operation is convenient. Meanwhile, the sealing performance is excellent, fluid leakage can be effectively prevented, the connector adapts to the complex underground environment, and a reliable and efficient connecting and sealing solution is provided for non-excavation type well casing engineering.

Description

TECHNICAL FIELD

[0001] The utility model relates to well pipe connection technical field, concretely is a full width socket joint for pipe jacking connection. BACKGROUND

[0002] In the modern trenchless well pipe construction field, the stable and reliable connection and sealing between well pipes are the key link to ensure the quality, service life and subsequent operation safety of the whole project. For a long time, the traditional well pipe connection mode has many drawbacks, which seriously restricts the improvement of engineering efficiency and quality.

[0003] The traditional method usually relies on half-width rubber rings to realize sealing, specifically, two half-width rubber rings are bonded on the inner wall of a full-width steel ring by glue to form a sealing structure. This connection mode has complicated operation process, and the construction personnel need to spend a lot of energy to ensure the accurate alignment and firm bonding of the two half-width rubber rings.

[0004] Due to the use of spliced half-width rubber rings, even if the construction is careful, small gaps still easily appear between the spliced parts of the two half-width rubber rings. When the well pipe is used to guide fluid, these gaps gradually allow water or corrosive liquid in the well pipe to seep between the rubber ring and the steel ring under pressure over time, reducing the connection strength. In addition, in the traditional pipe jacking connection process, an annular fiber plate is additionally placed at the connection to prevent the two pipe ends from directly abutting and causing breakage. This operation further increases the complexity of the construction process, and the construction personnel need to accurately place the fiber plate in the narrow and inconvenient operating environment underground, and any carelessness may cause the fiber plate to deviate, curl, etc., which not only cannot play its due buffering protection role, but also needs to be re-placed, causing a lot of unnecessary time waste, and also laying the foundation for subsequent sealing failure. SUMMARY

[0005] The utility model solves the technical problems that the existing half-width rubber rings for pipe jacking connection have gaps between them, which causes the adhesive between the rubber ring and the full-width steel ring to be easily corroded and the installation to be complicated, and solves the problem that a fiber plate needs to be separately placed between the two traditional pipes, which causes complicated operation.

[0006] To solve the above problems, the utility model provides the following technical scheme:

[0007] A full-width socket joint for pipe jacking connection, comprising an outer rubber ring, a filling boss, a sealing boss and an abutting piece;

[0008] The filling boss is in an arc ring structure and is fixedly connected with the inner wall of the outer rubber ring, and the filling boss is provided with two groups of filling bosses symmetrically arranged on the two sides of the inner wall of the outer rubber ring, each group consisting of three filling bosses.

[0009] The sealing boss is arranged on the inner wall of the outer rubber ring, and the sealing boss is arranged symmetrically on the inner wall of the outer rubber ring and between the two groups of filling bosses;

[0010] The sealing boss is arranged on the inner wall of the outer rubber ring, and the sealing boss is arranged symmetrically on the inner wall of the outer rubber ring and between the two groups of filling bosses;

[0011] Further, the outer rubber ring, the filling boss, the sealing boss and the abutting piece are all made of rubber material and are integrally formed.

[0012] Further, the angle A between the inclined surface and the vertical surface is 30-45 degrees.

[0013] Further, the thickness of the abutting piece is not less than 1cm.

[0014] Further, the abutting piece is a ring-shaped piece structure, and the inner diameter of the abutting piece is arranged according to the inner diameter of the pipe.

[0015] Further, the outer wall of the outer rubber ring is also provided with a plurality of semispherical grooves, and the plurality of semispherical grooves are uniformly arranged on the outer side of the outer rubber ring.

[0016] Further, the outer side of the outer rubber ring is also provided with a fixed steel ring, and the inner wall of the fixed steel ring is connected with the outer wall of the outer rubber ring by adhesive.

[0017] The beneficial effects of the present application are as follows:

[0018] Compared with the traditional half-width rubber ring, the present application is more convenient to install, does not need to be separately connected with the fiber plate, and does not have a connection gap after being connected with the fixed steel ring, thereby ensuring the connection strength between the rubber ring and the fixed steel ring and simplifying the connection mode between the rubber ring and the fixed steel ring. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a perspective view of the present application;

[0020] Figure 2 is a sectional view of the present application Figure One ;

[0021] Figure 3 is a sectional view of the present application Figure Two ;

[0022] Figure 4It is the connection schematic view of the outer rubber ring and the fixed steel ring of the utility model.

[0023] Figure 5 It is the setting position schematic view of the semispherical recess of the utility model.

[0024] Marked in the drawing: 1 - outer rubber ring, 2 - filling boss, 3 - sealing boss, 4 - abutting sheet, 5 - inclined surface, 6 - vertical surface, 7 - semispherical recess, 8 - fixed steel ring. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Apparently, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0026] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relationship shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0027] Please refer to Figures 1-5 , a full-width socket type connecting piece for pipe connection, mainly comprising an outer rubber ring 1, a filling boss 2, a sealing boss 3 and an abutting sheet 4.

[0028] The filling boss 2 is in an arc-shaped ring structure, is fixedly connected with the inner wall of the outer rubber ring 1, and is symmetrically distributed on both sides of the inner wall of the outer rubber ring 1 in two groups, each group being composed of three filling bosses 2 arranged in order. In the pipe connection operation process, the filling bosses 2 can closely adhere to the pipe wall, not only provide stable support, effectively disperse the pressure between the pipes, prevent the local pressure from being excessively concentrated to cause damage to the rubber ring, but also assist in sealing.

[0029] The sealing boss 3 is arranged on the inner wall of the outer rubber ring 1, also in two symmetrical groups, between the two groups of filling bosses 2. An inclined surface 5 and a vertical surface 6 are designed on it, and the vertical surface 6 is close to the middle area of the outer rubber ring 1. When the pipe is subjected to the socket operation, the inclined surface 5 guides the pipe end to be smoothly inserted, greatly reducing the difficulty of insertion; and once the pipe end is inserted in place, a sealing barrier is formed, effectively blocking fluid leakage, improving the sealing effect, and ensuring the purity and stability of the fluid in the pipe.

[0030] The abutting sheet 4 is arranged between the two groups of sealing bosses 3 and centrally arranged on the inner wall of the outer rubber ring 1. This abutting sheet 4 replaces the annular fiber plate that needs to be placed additionally in the traditional connection process, and it is made of integrated forming process with the outer rubber ring 1 and other components. This integrated design not only makes the installation process simple and efficient, and the construction personnel no longer need to place the fiber plate in the narrow space underground, but also can more accurately bear the pressure between the pipes. When the two pipes are butt-jointed, the abutting sheet 4 can evenly disperse the pressure, effectively preventing the damage caused by excessive extrusion of the two pipe ends.

[0031] The outer rubber ring 1, the filling boss 2, the sealing boss 3 and the abutting sheet 4 are all made of high-quality rubber material and are integrally formed.

[0032] The included angle A between the inclined surface 5 and the vertical surface 6 is 30-45 degrees. It ensures that the pipe end can be easily and quickly inserted, and the vertical surface 6 can form sufficient sealing resistance after the pipe is inserted, effectively resisting the impact of fluid pressure and preventing leakage.

[0033] The thickness of the abutting sheet 4 is not less than 1cm. The abutting sheet 4 adopts an annular sheet structure and its inner diameter is customized according to the inner diameter of the pipe.

[0034] A plurality of semispherical grooves 7 are arranged on the outer wall of the outer rubber ring 1, which are evenly distributed. These semispherical grooves 7 can increase the contact area and adhesion between the glue and the outer rubber ring 1 and the fixed steel ring 8 during the gluing process. When the outer rubber ring 1 and the fixed steel ring 8 are connected by gluing, this structure makes them tightly combined, further ensuring the sealing and reliability of the pipe connection.

[0035] The outer rubber ring 1 is matched with a fixed steel ring 8 on the outside, and the inner wall of the fixed steel ring 8 is connected with the outer wall of the outer rubber ring 1 by a special gluing method. The fixed steel ring 8 effectively limits the excessive deformation of the rubber ring.

[0036] The details of the embodiments can be implemented, without departing from the spirit or essential characteristics thereof, in other specific forms. Thus, the embodiments should be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the above description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.

[0037] Furthermore, it should be understood that although the present specification describes particular embodiments, these are merely examples of the same, and that the specification is not limited to only the particular embodiments described. The specification is therefore to be considered in all respects as illustrative and not restrictive, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. A full-width bell-and-spigot joint for pipe jacking connections, characterized by: The outer rubber ring (1), the filling boss (2), the sealing boss (3) and the abutting sheet (4) are included. The filling boss (2) is in an arc circular ring structure and is fixedly connected with the inner wall of the outer rubber ring (1), two groups of the filling boss (2) are symmetrically arranged on the two sides of the inner wall of the outer rubber ring (1), and each group is composed of three filling bosses (2). The sealing boss (3) is arranged on the inner wall of the outer rubber ring (1), two groups of the sealing boss (3) are symmetrically arranged on the inner wall of the outer rubber ring (1) and arranged between the two groups of the filling boss (2). The sealing boss (3) is provided with an inclined surface (5) and a vertical surface (6), the vertical surface (6) is arranged close to the middle part of the outer rubber ring (1), the abutting sheet (4) is arranged between the two groups of the sealing boss (3) and centrally arranged on the inner wall of the outer rubber ring (1).

2. A full-width bell-and-spigot joint for pipe jacking according to claim 1, characterized in that: The outer rubber ring (1), the filling boss (2), the sealing boss (3) and the abutting sheet (4) are all made of rubber material and are in an integral molding structure.

3. A full-width bell-and-spigot joint for pipe jacking according to claim 1, characterized in that: The included angle A between the inclined surface (5) and the vertical surface (6) ranges from 30 to 45 degrees.

4. A full-width bell-and-spigot joint for pipe jacking according to claim 1, characterized in that: The thickness of the abutting sheet (4) is not less than 1 cm.

5. A full-width bell-and-spigot joint for pipe jacking according to claim 1, characterized in that: The abutting sheet (4) is in a ring sheet structure, and the inner diameter of the abutting sheet (4) is arranged according to the inner diameter of the top pipe.

6. A full-width bell-and-spigot joint for pipe jacking according to claim 1, characterized in that: A plurality of semispherical grooves (7) are further arranged on the outer wall of the outer rubber ring (1), and the plurality of semispherical grooves (7) are uniformly arranged on the outer side of the outer rubber ring (1).

7. A full-width bell-and-spigot joint for pipe jacking according to claim 6, characterized in that: A fixed steel ring (8) is further arranged on the outer side of the outer rubber ring (1), and the inner wall of the fixed steel ring (8) is connected with the outer wall of the outer rubber ring (1) by means of gluing.

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