Dual lock flexible self-anchoring pipe joint structure

Abstract

The utility model discloses a ductile self-anchored pipe interface structure of double lock formula relates to the technical field of nodular cast iron self-anchored pipe, and discloses a kind of double lock formula ductile self-anchored pipe interface structure, including the socket section of pipeline, the socket section is equipped with self-anchored cabin and sealed cabin, the end surface of the self-anchored cabin of the first structure and the second structure is equipped with 1~N opening, the self-anchored cabin of third structure is not equipped with opening, and self-anchored cabin is equipped with anchoring groove, the anchoring block can slide to the anchoring groove of any one side along opening, or the anchoring ring can be installed in anchoring groove;Sealed cabin is equipped with sealing ring;Self-anchored welding ring is equipped on the pipe body of straight pipe section.The utility model discloses the technical scheme, when needing to disassemble, only need to slide out anchoring piece;Or the locking bolt of anchoring handle is loosened, and the anchoring piece is expanded by expanding bolt, so that the self-anchored welding ring of straight pipe section can smoothly pass through the anchoring piece of self-anchored cabin, and straight pipe section can be separated from self-anchored cabin.

Description

Technical Field

[0001] This utility model belongs to the field of ductile iron pipe technology, specifically relating to the structure of a double-locking flexible self-anchoring pipe interface. Background Technology

[0002] In the field of water supply and drainage, pipe connection methods include: rigid connections, such as welding or bolting; flexible connections, such as socket connections; and self-anchoring connections used under special construction conditions.

[0003] The advantages of self-anchored connections are as follows: 1. When passing through buildings, bridges, highways, lakes and other engineering projects, trenchless construction can be carried out, reducing construction investment and damage to above-ground facilities; 2. Self-anchored interfaces do not require the construction of supports to resist the thrust generated by internal water pressure at pipeline bends, slopes, stops or diameter changes, making construction efficient and cost-effective.

[0004] Existing self-anchoring joint types include T-type socket joints, where anchoring teeth are embedded in the sealing ring; or joints where the pipe socket and spigot are connected externally using mechanical structures such as flanges and bolts; or self-anchoring joints with self-anchoring chambers, forming a self-anchoring structure through the self-anchoring chamber, anchoring block, and self-anchoring weld ring of the pipe spigot. The disadvantages of existing self-anchoring joints include: the anchoring block structure is relatively complex, and the self-anchoring joint is difficult to install and disassemble. Utility Model Content

[0005] The purpose of this invention is to provide a structure for a double-locking flexible self-anchoring pipe interface to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: the structure of the double-locking flexible self-anchoring pipe interface includes a socket section, a straight pipe section, anchor blocks and anchor rings, and an anchor block fixing device. The socket section is provided with a self-anchoring chamber and a sealing chamber. The end face of the self-anchoring chamber has 1 to N openings or no openings. An anchoring groove is provided on the inner side of the end face of the self-anchoring chamber. There are 1 to N anchor blocks and anchor rings. The anchor blocks can slide along the openings and be installed in the anchoring grooves on either side. The anchor rings can be pre-installed in the anchoring chambers and expanded by expansion bolts. The anchor block fixing device is installed between the anchor blocks. A sealing ring is provided in the sealing chamber. A self-anchoring welding ring is provided on the pipe body of the straight pipe section. Preferably, there are 1 to N anchor blocks. The anchor blocks may or may not have anchor handles. If the anchor blocks do not have anchor handles, their two ends are provided with stop mouths. Preferably, there are 1 to N anchoring rings, and each end of the anchoring ring is provided with an anchoring handle, and the anchoring handle is provided with a bolt locking hole and a bolt expansion hole; Preferably, an anchor block fixing device, which is an elastic material rod, is installed at the opening; Preferably, the anchor block and the anchor ring are installed inside the anchor groove; Preferably, the end face of the anchoring chamber is provided with 1 to N openings, or it may not be provided with openings. An anchoring groove is provided on the inner side of the end face of the anchoring chamber. The 1 to N anchoring blocks are installed in sequence inside the anchoring groove of the anchoring chamber, and then the anchoring blocks are fixed by the anchoring block fixing device. Preferably, the 1 to N anchoring rings are pre-installed inside the anchoring groove of the anchoring chamber, and finally the anchoring rings are fastened with bolts at the opening; Preferably, the end face of the anchoring chamber has no opening, and an anchoring groove is provided on the inner side of the end face of the anchoring chamber. The 1 to N anchoring rings are installed inside the anchoring groove of the anchoring chamber, and the anchoring handles of the anchoring rings extend out of the end face of the anchoring chamber. Finally, the anchoring rings are secured to the end face of the anchoring chamber with bolts.

[0007] Compared with the prior art, the beneficial effects of this utility model are as follows: Using the above technical solution, when disassembly is required, simply remove the anchor block fixing device and slide the anchor blocks out in sequence to allow the straight pipe section to easily detach from the self-anchoring chamber; or loosen the fastening bolts of the anchor ring and then expand the anchor ring by the bolts so that the self-anchoring weld ring of the straight pipe section can pass smoothly through the anchor ring in the self-anchoring chamber, and the straight pipe section can then be separated from the self-anchoring chamber.

[0008] It has a stronger adaptability and better flexibility when the pipeline deflects, and can withstand greater anti-detachment force. Moreover, because the self-anchoring cabin has a larger operating space, the pipeline can adapt to a larger deflection angle to suit complex and harsh engineering environments.

[0009] In the diagram: 1-Socket section; 2-Straight pipe section; 21-Self-anchoring weld ring; 3-Self-anchoring chamber; 31-Opening; 32-Anchoring groove; 4-Sealing chamber; 41-Sealing ring; 5-Anchoring block; 51-Anchoring block handle; 6-Anchoring ring; 61-Anchoring ring handle; 62-Bolt expansion hole; 63-Bolt locking hole; 7-Elastic material rod. Detailed Implementation

[0010] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0011] like Figure 6As shown, the structure of the double-locking flexible self-anchoring pipe interface includes a socket section 1 and a straight pipe section 2. The socket section 1 is provided with a self-anchoring chamber 3 and a sealing chamber 4. One end of the self-anchoring chamber 3 is provided with 1 to N openings 31, and both sides of the openings 31 are provided with anchoring grooves 32. The anchoring block 5 can slide along the opening 31 to either side of the anchoring groove 32. The sealing chamber 4 is provided with a sealing ring 41. The straight pipe section 2 is provided with a self-anchoring welding ring 21. The anchoring block 5 may or may not be provided with an anchoring block handle 51. The anchoring ring 6 is provided with an anchoring ring handle 61. The anchoring ring handle 61 is provided with a bolt expansion hole 62 and a bolt locking hole 63. When the pipe needs to be installed, the straight pipe section 2 of one pipe is inserted into the socket section 1 of another pipe. When the self-anchoring welding ring 21 of the straight pipe section 2 passes through the self-anchoring chamber 3 of the socket section 1 and reaches the designated position, it is fixed. There are three fixing methods, as follows: The first fixing method uses anchor blocks 5 and elastic material rods 7 for fixing. During installation, first insert the straight pipe section 2 into the socket section 1, then slide the anchor blocks 5 into the anchoring grooves 32. If an opening 31 is set at one end of the self-anchoring chamber 3, two anchor blocks 5 are needed. The two anchor blocks 5 are slid into the anchoring grooves 32 on both sides of the opening 31, and then the elastic material rods 7 are installed at the opening 31. The two ends of the elastic material rods 7 respectively abut against the anchor blocks 5. The two anchor handles 51 of the two anchor blocks 5 are located at both ends of the opening 31 of the self-anchoring chamber, which can ensure the stability of the anchor blocks 5 and achieve the purpose of fixing the pipe. After installation, since the self-anchoring welding ring 21 is confined inside the self-anchoring chamber 3 by the anchor blocks 5, the purpose of fixing the pipe can be achieved.

[0012] If the above-mentioned fixing method has a large opening 31, in practical applications, the number of openings 31 can be set according to the diameter of the pipe. When the number of openings 31 increases, the number of anchor blocks 5 used also increases. Example

[0013] like Figure 2As shown, the fixing method in this embodiment is a double-shrink flexible self-anchoring pipe self-anchoring interface structure with a small opening 31. Taking the self-anchoring cabin 3 with two openings 31 at one end as an example, the self-anchoring cabin 3 has two openings 31 at one end, and anchoring grooves 32 are provided on both sides of the openings 31 respectively. The anchoring ring 6 is installed in the anchoring grooves 32. The anchoring ring 6 is provided with an anchoring ring handle 61, and the anchoring ring handle 61 is provided with an expansion screw hole 62 and a locking screw hole 63. During installation, first place the two anchoring rings 6 into the anchoring grooves 32, and then insert the anchoring ring handles 61 into the two openings 31 respectively. Next, connect the anchoring rings and expand the bolt holes 62 so that the anchoring rings 6 expand to the maximum diameter within the anchoring grooves 32, ensuring that the self-anchoring welded ring 21 of the straight pipe section 2 passes through the anchoring rings 6. When the self-anchoring welded ring 21 of the straight pipe section 2 passes through the anchoring rings 6 and reaches the designated position, loosen the expansion bolts 62 and tighten the locking bolts 63 to hold the two anchoring rings 6 tightly around the straight pipe section 2. Because the two anchoring rings 6 hold the straight pipe section 2 tightly, even if the spigot section 2 does not have a welded ring 21, the interface can withstand a large pull-out force to achieve the self-anchoring function. In addition, the self-anchoring welded ring 21 is blocked by the self-anchoring rings 6, and the whole is confined within the self-anchoring chamber 3, thus achieving double locking of the pipeline. Example

[0014] like Figure 3 As shown, this embodiment takes the case where the end of the self-anchoring chamber 3 has no opening 31 as an example. The self-anchoring interface structure of the double-shrink flexible self-anchoring pipe includes a socket section 1 and a straight pipe section 2. The socket section 1 is provided with a self-anchoring chamber 3 and a sealing chamber 4. The self-anchoring chamber 3 is provided with an anchoring groove 32. The inner wall of the anchoring groove 32 is arc-shaped. That is, the diameter of the anchoring groove 32 at the end close to the port of the socket section 1 is smaller, almost the same as the diameter of the port of the socket section 1. The diameter of the anchoring groove 32 is larger towards the inside. That is, the diameter is larger at the end far from the port of the socket section 1. Thus, the anchoring groove 32 of this shape has a quarter-spherical inner wall. The anchoring ring 6 has two anchoring ring handles 61 at its two ends, one on the left and one on the right. The handles 61 extend beyond the end face of the anchor chamber 3. The anchoring ring 6 body is installed in the anchoring groove 32. The anchoring ring handle 61 has two sets of bolt holes, namely bolt expansion holes 62 and bolt locking holes 63. During installation, the bodies of N anchoring rings 6 are installed sequentially in the anchoring groove 32, with the anchoring handles 61 extending beyond the end face of the anchor chamber 3. In this way, the N anchoring rings 6 can surround one side of the anchoring groove 32. Next, the anchoring rings 6 are connected by the bolt expansion holes 62, and the N anchoring rings 6 are expanded until they reach their maximum diameter within the self-anchoring chamber 3. At this point, the diameter of the circle formed by the N anchoring rings 6 allows the self-anchoring welded ring 21 of the straight pipe section 2 to pass through. When the self-anchoring welded ring 21 of the straight pipe section 2 passes through the bodies of the N anchoring rings 6 and the self-anchoring chamber 3 in sequence and reaches the designated position, the expansion bolts 62 of each adjacent phase are loosened, and the locking bolts 63 are tightened to hold the N anchoring rings 6 tightly around the straight pipe section 2. Because the anchoring rings 6 hold the straight pipe section 2 tightly, even if the spigot section 2 does not have a welded ring 21, the interface can withstand a large pull-out force to achieve the self-anchoring function. In addition, the self-anchoring welded ring 21 is blocked by the self-anchoring rings 6, and the whole is confined within the self-anchoring chamber 3, thus achieving double locking of the pipeline.

[0015] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0016] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents. Attached Figure Description

[0017] Figure 1 A schematic diagram of the first fixing method in Embodiment 1 provided by this utility model; Figure 2 A schematic diagram of the second fixing method in Embodiment 1 of this utility model; Figure 3and Figure 4 A schematic diagram of the third fixing method in Embodiment 1 of this utility model; Figure 5 A schematic diagram of an anchoring block with an anchoring handle provided by this utility model; Figure 6 A schematic diagram of an anchoring ring with two anchoring handles provided by this utility model; Figure 7 A schematic diagram of Embodiment 1 provided by this utility model; Figure 8 A schematic diagram of Embodiment 2 provided by this utility model; Figure 9 This is a schematic diagram of the overall installation of this utility model.

Claims

1. A double-locking flexible self-anchoring pipe interface structure, comprising a socket section (1) and a straight pipe section (2), wherein the socket section is provided with a self-anchoring chamber (3) and a sealing chamber (4), characterized in that: It also includes an anchor block (5) and an anchor block fixing device, an anchor ring (6), the end face of the self-anchoring chamber (3) is provided with an opening (31), the inner side of the end face is provided with an anchoring groove (32), the anchor block (5) and the anchor ring (6) are installed in the anchoring groove (32), the sealing chamber (4) is provided with a sealing ring (41), and the straight pipe section (2) is provided with a self-anchoring welding ring (21).

2. The double-locking flexible self-anchoring pipe interface structure according to claim 1, characterized in that: The opening (31) has 1 to N.

3. The double-locking flexible self-anchoring pipe interface structure according to claim 1, characterized in that: The anchor block (5) can slide along the opening (31) and be installed in the anchor groove (32) on either side.

4. The double-locking flexible self-anchoring pipe interface structure according to claim 1, characterized in that: The anchor block (5) is provided with an anchor handle (51).

5. The double-locking flexible self-anchoring pipe interface structure according to claim 1, characterized in that: The anchor block (5) has no anchor handle and has stops at both ends.

6. The double-locking flexible self-anchoring pipe interface structure according to claim 1, characterized in that: The number of anchoring rings (6) is 1 to N.

7. The double-locking flexible self-anchoring pipe interface structure according to claim 6, characterized in that: The anchoring ring (6) is provided with an anchoring ring handle (61), and the anchoring ring handle (61) is provided with a bolt expansion hole (62) and a bolt locking hole (63).

8. The double-locking flexible self-anchoring pipe interface structure according to claim 3, characterized in that: The anchoring groove (32) is a quarter-spherical inner wall or a planar inner wall.

Images