Buried drain pipe easy to replace

Abstract

The utility model relates to the technical field of buried pipes, in particular to a buried drainage pipe easy to replace. The buried drainage pipe easy to replace solves the technical problem that in the prior art, a buried drainage pipe is prone to leakage. A buried drainage pipe easy to replace comprises a pipe body, a core pipe is arranged at one end of the pipe body, and the core pipe is slidably connected to the pipe body in the axis direction of the pipe body; due to the fact that the core pipe is arranged and arranged in the pipe body in the sliding mode, when the two pipe bodies are spliced end to end, the core pipe can extend into the other pipe body from one pipe body, the two spliced pipe bodies have a larger contact area, and the sealing performance of the splicing position of the two pipe bodies can be effectively improved. Besides, as the core pipe is slidably connected to the pipe bodies, when one pipe body needs to be replaced, the core pipe is withdrawn from the pipe body needing to be replaced, and the pipe body can be conveniently replaced, so that the drainage pipe is easy to maintain.

Description

Technical Field

[0001] This utility model relates to the field of buried pipe technology, and in particular to an easily replaceable buried drainage pipe. Background Art

[0002] Drainage pipelines refer to the system of pipes and their ancillary facilities that collect and discharge sewage, wastewater, and rainwater. This includes main pipes, branch pipes, and pipes leading to treatment plants. Regardless of whether they are built on streets or anywhere else, any pipe that serves a drainage function should be counted as a drainage pipeline.

[0003] Existing buried drainage pipes are prone to damage during construction work. Drainage pipes are typically composed of multiple pipe sections joined together, and when some sections are damaged, replacement is necessary. To facilitate replacement, existing pipe systems are assembled by end-to-end contact. While this method allows for pipe removal along the diameter, the small contact area between the pipe ends makes leakage likely between the joined sections.

[0004] Therefore, existing underground drainage pipes have the technical problem of being prone to leakage. Utility Model Content

[0005] This utility model provides an easily replaceable underground drainage pipe, which solves the technical problem of easy leakage in existing underground drainage pipes.

[0006] Some implementation schemes for solving the above-mentioned technical problems include:

[0007] An easily replaceable underground drainage pipe includes a pipe body, one end of which is provided with a core tube, which is slidably connected to the pipe body along the axial direction of the pipe body.

[0008] The core tube includes a first extreme position that is completely located within the tube body, and the core tube also includes a second extreme position that protrudes from the tube body.

[0009] The tube body is provided with a driving assembly for driving the core tube to move between a first extreme position and a second extreme position. The driving assembly includes a nut disposed on the tube body, and the tube body is provided with an external thread that mates with the nut.

[0010] The core tube is provided with a driving block, and the tube body is also provided with a strip groove that cooperates with the driving block. The strip groove is provided along the length direction of the core tube. The driving block protrudes from the outer wall of the tube body through the strip groove. The distance from the driving block to the end of the core tube that protrudes from the tube body is less than the distance from the driving block to the end of the core tube that is located inside the tube body. Furthermore, when the core tube is located in the second extreme position, the core tube seals the strip groove.

[0011] The nut is provided with a drive ring that drives the core tube to move through the drive block.

[0012] Preferably, the drive block and the core tube are an integral structure, and the portion of the drive block protruding from the tube body is provided with a drive groove that cooperates with the drive ring, and a portion of the drive ring is located in the groove.

[0013] Preferably, the drive ring includes a first half-ring portion and a second half-ring portion, both of which are fixed to the nut, and the first half-ring portion and the second half-ring portion cooperate to form the drive ring.

[0014] Preferably, the first half-ring portion is welded to the nut, and the second half-ring portion is welded to the nut.

[0015] Preferably, there are at least two drive blocks, which are evenly arranged along the circumference of the core tube, and the drive slots of all the drive blocks cooperate with the drive ring.

[0016] Preferably, the drive ring is welded to the nut via a connecting bracket, the connecting bracket located in the first half-ring portion is an integral structure with the first half-ring portion, and the connecting bracket located in the second half-ring portion is an integral structure with the second half-ring portion.

[0017] Preferably, the inner wall of the core tube is flush with the inner wall of the tube body, and both ends of the tube body are provided with grooves that cooperate with the core tube. The grooves communicate with the inner cavity of the tube body, and the grooves are coaxially arranged with the tube body.

[0018] Preferably, the sidewalls of the tank are provided with sealing rings, and at least two sealing rings are provided in each tank.

[0019] Preferably, the sidewall of the tank is provided with a sealing layer, which is adhered to the sidewall of the tank and completely covers the sidewall of the tank.

[0020] Preferably, the outer wall of the tube is provided with a support body, the support body is evenly distributed along the length direction of the tube body, and the support body and the tube body are an integral structure.

[0021] Compared with the prior art, the present invention has the following advantages:

[0022] By setting a core tube, which is slidably installed inside the tube body, when the two tube bodies are spliced ​​end to end, the core tube can extend from one tube body into the other tube body, thereby giving the two spliced ​​tube bodies a larger contact area and effectively improving the sealing performance at the splice of the two tube bodies.

[0023] In addition, since the core tube is slidably connected to the pipe body, when it is necessary to replace one of the pipe bodies, the core tube can be removed from the pipe body to be replaced, making the pipe body easy to replace and the drain pipe easy to maintain.

[0024] By setting up a drive assembly, which includes a nut, the core tube is moved by the engagement of the nut with the external thread. Since the nut has a self-locking characteristic, after rotating the nut to the target position, no other locking mechanism is needed to lock the position of the core tube relative to the tube body, which simplifies the structure of the drain pipe and reduces the manufacturing cost of the drain pipe. Attached Figure Description

[0025] For illustrative purposes, several embodiments of the present invention are illustrated in the following figures. These figures are incorporated herein by reference and form part of the detailed description. In some cases, well-known structures and components are shown in block diagram form to avoid obscuring the concept of the subject matter of the present invention.

[0026] Figure 1 This is a schematic diagram of the present invention.

[0027] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0028] Figure 3 This is a schematic diagram of the internal structure of the two tubes after they are joined together end to end.

[0029] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0030] Figure 5 This is a schematic diagram of the core tube.

[0031] Figure 6 This is an exploded view of the nut and drive ring.

[0032] As shown in the figure:

[0033] 1. Pipe body, 11. External thread, 12. Groove, 13. Groove body, 14. Support body.

[0034] 2. Core tube, 21. Drive block, 211. Drive slot.

[0035] 3. Drive assembly; 31. Nut; 32. Drive ring; 321. First half-ring; 322. Second half-ring; 33. Connecting bracket. DETAILED DESCRIPTION

[0036] The specific embodiments shown below are intended to describe various configurations of the subject matter of this invention and are not intended to represent the only configuration in which the subject matter of this invention can be practiced. The specific embodiments include detailed descriptions intended to provide a thorough understanding of the subject matter of this invention. However, it will be clear and apparent to those skilled in the art that the subject matter of this invention is not limited to the specific details shown herein and can be practiced without these specific details.

[0037] Understandably, in this document, relational terms such as “first” and “second” are intended to distinguish one entity or operation from another, and are not intended to expressly or imply any actual relationship or order between these entities or operations.

[0038] The terms “comprising,” “including,” or any other variations thereof are intended to cover a 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 limitation, 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.

[0039] Reference Figures 1 to 6 As shown, an easily replaceable underground drainage pipe includes a pipe body 1, with a core tube 2 provided at one end of the pipe body 1, and the core tube 2 being slidably connected to the pipe body 1 along the axial direction of the pipe body 1.

[0040] The core tube 2 includes a first extreme position that is completely located inside the tube body 1, and the core tube 2 also includes a second extreme position that protrudes from the tube body 1;

[0041] The tube body 1 is provided with a driving assembly 3 for driving the core tube 2 to move between a first extreme position and a second extreme position. The driving assembly 3 includes a nut 31 disposed on the tube body 1, and the tube body 1 is provided with an external thread 11 that mates with the nut 31.

[0042] The core tube 2 is provided with a driving block 21, and the tube body 1 is also provided with a strip groove 12 that cooperates with the driving block 21. The strip groove 12 is arranged along the length direction of the core tube 2. The driving block 21 protrudes from the outer wall of the tube body 1 through the strip groove 12. The distance from the driving block 21 to the end of the core tube 2 that protrudes from the tube body 1 is less than the distance from the driving block 21 to the end of the core tube 2 that is located inside the tube body 1. Furthermore, when the core tube 2 is located in the second extreme position, the core tube 2 seals the strip groove 12.

[0043] The nut 31 is provided with a drive ring 32 that drives the core tube 2 to move through the drive block 21.

[0044] The strip groove 12 can pass through one end of the tube body 1 so that the core tube 2 can be directly inserted into the tube body 1 from one end of the tube body 1.

[0045] Reference Figures 1 to 6 As shown, in some embodiments, when two tubes 1 need to be connected, the nut 31 is rotated so that the core tube 2 is completely inside one of the tubes 1. Then, the two tubes 1 are connected. After the two tubes 1 are connected, their axes are coaxial. The nut 31 is then rotated in the opposite direction so that the core tube 2 moves a certain distance in the opposite direction. At this time, the core tube 2 protrudes from one of the tubes 1 and enters the other tube 1. That is, a part of the core tube 2 is located in one of the tubes 1, and the other part of the core tube 2 is located in the other tube 1. The core tube 2 has a large contact area with the two tubes 1, which makes the joint of the two tubes 1 have better sealing performance and the tubes 1 are not easy to leak.

[0046] In some embodiments, the two pipe bodies 1 that are spliced ​​end to end can be spliced ​​by fastening rods such as bolts, or other splicing methods can be used. The splicing method of the pipe body 1 refers to the prior art.

[0047] In some embodiments, when one of the two spliced ​​tubes 1 needs to be replaced, the nut 31 is rotated so that the core tube 2 is completely inside the tube 1 that does not need to be replaced. After the core tube 2 is removed from the tube 1 that needs to be replaced, the tube 1 can be easily replaced.

[0048] Reference Figures 1 to 6 As shown, in some embodiments, the drive block 21 and the core tube 2 are an integral structure. The portion of the drive block 21 that protrudes from the tube body 1 is provided with a drive groove 211 that cooperates with the drive ring 32. A portion of the drive ring 32 is located within the groove 13.

[0049] In some embodiments, the drive ring 32 includes a first half-ring portion 321 and a second half-ring portion 322, both of which are fixed to the nut 31, and the first half-ring portion 321 and the second half-ring portion 322 cooperate to form the drive ring 32.

[0050] The first semi-ring portion 321 is welded to the nut 31, and the second semi-ring portion 322 is welded to the nut 31.

[0051] The drive ring 32 includes a first half-ring portion 321 and a second half-ring portion 322. The drive ring 32 can be assembled with the drive groove 211 along the diameter direction of the tube body 1, making it easy to assemble the drive ring 32 with the drive groove 211. The first half-ring portion 321 and the second half-ring portion 322 can also be installed on the nut 31 using other installation methods.

[0052] Reference Figures 1 to 6 As shown, in some embodiments, there are at least two drive blocks 21, and at least two drive blocks 21 are evenly arranged along the circumferential direction of the core tube 2, and the drive grooves 211 of all drive blocks 21 cooperate with the drive ring 32.

[0053] The more driving blocks 21 there are, the more uniform the force on the core tube 2 will be. Therefore, the number of driving blocks 21 is not limited and can be reasonably determined according to needs.

[0054] In some embodiments, the drive ring 32 is welded to the nut 31 via a connecting frame 33. The connecting frame 33 located in the first half-ring portion 321 is an integral structure with the first half-ring portion 321, and the connecting frame 33 located in the second half-ring portion 322 is an integral structure with the second half-ring portion 322.

[0055] Reference Figures 1 to 6 As shown, in some embodiments, the inner wall of the core tube 2 is flush with the inner wall of the tube body 1, and both ends of the tube body 1 are provided with grooves 13 that cooperate with the core tube 2. The grooves 13 communicate with the inner cavity of the tube body 1, and the grooves 13 are coaxially arranged with the tube body 1.

[0056] In some embodiments, the sidewalls of the groove 13 are provided with sealing rings, and at least two sealing rings are provided in each groove 13.

[0057] Alternatively, a sealing layer is provided on the side wall of the tank 13, the sealing layer is adhered to the side wall of the tank 13, and the sealing layer completely covers the side wall of the tank 13.

[0058] The sealing ring and sealing layer can be freely selected according to the application environment. Because of its larger sealing area, the sealing layer is suitable for applications requiring high sealing performance.

[0059] In some embodiments, a support body 14 is provided on the outer wall of the tube body 1. The support body 14 is uniformly arranged along the length direction of the tube body 1, and the support body 14 and the tube body 1 are an integral structure.

[0060] The cross-sectional shape of the support 14 can be square.

[0061] The above describes the subject matter technical solution of this utility model and its corresponding details. It is understood that the above description is only some implementation schemes of the subject matter technical solution of this utility model, and some details may be omitted in the specific implementation.

[0062] Furthermore, in some embodiments of the above utility model, multiple embodiments may be combined; however, due to space limitations, all such combinations will not be listed here. Those skilled in the art can freely combine the above embodiments according to their needs to achieve a better application experience.

[0063] When implementing the subject matter technical solution of this utility model, those skilled in the art can obtain other detailed configurations or drawings based on the subject matter technical solution and the accompanying drawings. Obviously, without departing from the subject matter technical solution of this utility model, these details still fall within the scope of the subject matter technical solution of this utility model.

Claims

1. An easily replaceable underground drainage pipe, characterized in that: It includes a tube body (1), one end of which is provided with a core tube (2), and the core tube (2) is slidably connected to the tube body (1) along the axial direction of the tube body (1); The core tube (2) includes a first extreme position that is completely located inside the tube body (1), and the core tube (2) also includes a second extreme position that protrudes from the tube body (1); The tube body (1) is provided with a driving assembly (3) for driving the core tube (2) to move between a first limit position and a second limit position. The driving assembly (3) includes a nut (31) provided on the tube body (1). The tube body (1) is provided with an external thread (11) that mates with the nut (31). The core tube (2) is provided with a driving block (21), and the tube body (1) is also provided with a strip groove (12) that cooperates with the driving block (21). The strip groove (12) is provided along the length direction of the core tube (2). The driving block (21) protrudes from the outer wall of the tube body (1) through the strip groove (12). The distance from the driving block (21) to the end of the core tube (2) that protrudes from the tube body (1) is less than the distance from the driving block (21) to the end of the core tube (2) that is located inside the tube body (1). Furthermore, when the core tube (2) is located in the second extreme position, the core tube (2) seals the strip groove (12). The nut (31) is provided with a drive ring (32) that drives the core tube (2) to move through the drive block (21).

2. The easily replaceable underground drainage pipe according to claim 1, characterized in that: The drive block (21) and the core tube (2) are an integral structure. The part of the drive block (21) that protrudes from the tube body (1) is provided with a drive groove (211) that cooperates with the drive ring (32). A part of the drive ring (32) is located in the groove (13).

3. The easily replaceable underground drainage pipe according to claim 2, characterized in that: The drive ring (32) includes a first half-ring portion (321) and a second half-ring portion (322). Both the first half-ring portion (321) and the second half-ring portion (322) are fixed to the nut (31), and the first half-ring portion (321) and the second half-ring portion (322) cooperate to form the drive ring (32).

4. The easily replaceable underground drainage pipe according to claim 3, characterized in that: The first semi-ring portion (321) is welded to the nut (31), and the second semi-ring portion (322) is welded to the nut (31).

5. The easily replaceable underground drainage pipe according to claim 4, characterized in that: There are at least two drive blocks (21), and at least two drive blocks (21) are evenly arranged along the circumferential direction of the core tube (2). The drive grooves (211) of all drive blocks (21) are engaged with the drive ring (32).

6. The easily replaceable underground drainage pipe according to claim 5, characterized in that: The drive ring (32) is welded to the nut (31) via a connecting frame (33). The connecting frame (33) located in the first half-ring portion (321) is an integral structure with the first half-ring portion (321), and the connecting frame (33) located in the second half-ring portion (322) is an integral structure with the second half-ring portion (322).

7. The easily replaceable buried drainage pipe according to claim 1, characterized in that: The inner wall of the core tube (2) is flush with the inner wall of the tube body (1). Both ends of the tube body (1) are provided with grooves (13) that cooperate with the core tube (2). The grooves (13) communicate with the inner cavity of the tube body (1) and are coaxially arranged with the tube body (1).

8. The easily replaceable buried drainage pipe according to claim 7, characterized in that: The sidewall of the groove (13) is provided with a sealing ring, and at least two sealing rings are provided in each groove (13).

9. The easily replaceable buried drainage pipe according to claim 7, characterized in that: The sidewall of the tank (13) is provided with a sealing layer, which is adhered to the sidewall of the tank (13) and completely covers the sidewall of the tank (13).

10. The easily replaceable underground drainage pipe according to claim 1, characterized in that: The outer wall of the tube (1) is provided with a support (14), the support (14) is uniformly arranged along the length direction of the tube (1), and the support (14) and the tube (1) are an integral structure.

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