Pipeline connecting structure, connecting pipeline and drainage U-shaped trap

Abstract

The utility model relates to the technical field of drainage pipes, in particular to a pipeline connecting structure, a connecting pipeline and a drainage U-shaped trap, the pipeline connecting structure comprises a first connecting part and a second connecting part, the inner wall of the first connecting part and the outer wall of the second connecting part are both of an arc-shaped structure, and the inner wall of the second connecting part is of an arc-shaped structure. The second connecting part is sleeved with the first connecting part, the bottom of the first connecting part is located below the maximum outer diameter position of the second connecting part, and the inner diameter of the bottom of the first connecting part is smaller than the maximum outer diameter of the second connecting part. The pipeline connecting structure aims to overcome the defects in the prior art, the relative angle and direction of the pipelines can be adjusted at any time after the pipelines are connected according to the requirements of users, so that the pipelines are prevented from being in a distorted state, and the orientation of the pipelines is more beneficial to drainage.

Description

Technical Field

[0001] The utility model relates to the technical field of drainage pipes, and more specifically, to a pipe connection structure, a connecting pipe and a drainage U-shaped water trap. Background Art

[0002] PVC drain pipes are increasingly used across various industries. Polyvinyl chloride (PVC), the primary material, offers strong heat and corrosion resistance, excellent physical and chemical properties, and a smooth interior, resulting in less friction than conventional drainage materials. In the construction industry's drainage systems, PVC drain pipes are often used in traps. Traps are fittings that connect various sanitary fixtures (except toilets) to drainage laterals or risers, acting as a water seal. Traps are installed on or within sanitary fixture drain pipes.

[0003] Common problems with existing water traps are that the water trap and the pipe are connected at the connection position using nuts and rubber rings. Taking the water trap installed at the bottom of the kitchen cabinet sink as an example, since the kitchen cabinet sink takes up a large space for drainage, the installation space of the water trap is small, and the placement of the water trap is very limited. The connection and tightening of the pipe and the water trap requires a threaded connection. After tightening the pipe, it is impossible to adjust the angle or direction of the pipe relative to the water trap according to the actual drainage position, which leads to a relatively distorted setting of the pipe, which can neither guarantee the service life of the pipe nor be conducive to drainage. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the existing technology and provide a pipe connection structure, which can adjust the relative angle and direction of the pipes at any time according to the needs of the user after the pipes are connected, thereby avoiding the pipes from being twisted and making the orientation of the pipes more conducive to drainage.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A pipeline connection structure is provided, including a first connection part and a second connection part, wherein the inner wall of the first connection part and the outer wall of the second connection part are both arc-shaped structures, the first connection part is sleeved on the outside of the second connection part, the bottom of the first connection part is located below the maximum outer diameter of the second connection part, and the inner diameter of the bottom of the first connection part is smaller than the maximum outer diameter of the second connection part.

[0007] The utility model buckles the first connection part upside down on the outside of the second connection part and uses the maximum outer diameter of the second connection part to limit the first connection part, thereby preventing the first connection part from accidentally detaching. The first connection part and the second connection part can only be detached when greater force is applied. The direct buckling structure can make assembly more convenient and quick, improve installation efficiency, and reduce product production costs; and the inner wall of the first connection part and the outer wall of the second connection part are both designed with an arc structure, which can enable the first connection part to rotate relative to the second connection part, so that the relative angle of the first connection part and the second connection part can be adjusted after the first connection part and the second connection part are connected, thereby avoiding the pipe from being twisted and making the orientation of the pipe more conducive to drainage.

[0008] Preferably, the arc-shaped structure of the second connecting portion is symmetrically arranged about its maximum outer diameter.

[0009] Preferably, a plurality of notches are sequentially formed on the bottom of the first connecting portion along the circumferential direction, and the notches extend upward.

[0010] Preferably, the notch extends to the maximum inner diameter of the first connecting part.

[0011] Preferably, a sealing structure is further included, and the sealing structure is installed between the first connecting part and the second connecting part.

[0012] Preferably, a first limiting portion and a second limiting portion are respectively provided at both ends of the sealing structure, a third limiting portion is provided on the top of the second connecting portion, and a fourth limiting portion is provided on the outer wall of the second connecting portion. The third limiting portion and the first limiting portion are clamped and limited, and the second limiting portion and the fourth limiting portion are clamped and limited.

[0013] The utility model also provides a connecting pipeline, including a first pipeline and a second pipeline, wherein the first pipeline is connected to the second pipeline through the pipeline connecting structure as described above, the first connecting part is located in the first pipeline, and the second connecting part is located in the second pipeline.

[0014] The connecting pipes of the present invention are connected by an inverted sleeve connection, and the pipe connection structure adopts an arc-shaped structural design, which can be rotated after the first pipe and the second pipe are connected, thereby facilitating the adjustment of the relative angle between the first pipe and the second pipe.

[0015] Preferably, the first pipe is a straight pipe or a curved pipe, and the second pipe is also a straight pipe or a curved pipe.

[0016] The present utility model also provides a drainage U-shaped water trap, including a first pipe and a U-shaped water trap body. There are two first pipes, and the two first pipes are connected to both ends of the U-shaped water trap body through the pipe connection structure as described above. The first connection part is located in the first pipe, and the second connection part is located in the U-shaped water trap body.

[0017] The utility model designs the connection structure between the first pipe and the U-shaped water trap body into an arc-shaped inverted structure, which can help to adjust the relative angle between the first pipe and the U-shaped water trap body after the first pipe is connected to the U-shaped water trap body, thereby adjusting the direction of the first pipe, and making the setting of the entire pipe network more ideal, which can not only ensure the service life of the pipe, but also facilitate drainage.

[0018] Preferably, a drain outlet is provided at the bottom of the U-shaped water trap body, and a guard eave extends downward from the drain outlet. The guard eave is detachably connected to a nut, and the top of the nut is embedded in the U-shaped water trap body to form a blockage for the drain outlet.

[0019] Preferably, the first pipe is a curved pipe.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] (1) Designing the pipe connection structure into an arc-shaped inverted structure can help adjust the relative angle between the pipes after the pipes are connected, thereby adjusting the layout direction of the pipes, and making the setting of the entire pipe network more ideal, which can not only ensure the service life of the pipes, but also facilitate drainage.

[0022] (2) The setting of the sealing structure is conducive to improving the sealing performance of the pipeline connection structure; a plurality of limiting parts are provided on the sealing structure and the second connection part, which is conducive to the installation of the sealing structure, thereby ensuring the realization of the sealing performance.

[0023] (3) The U-shaped water trap of the present invention is also provided with an inspection port structure. The drainage port is an inspection port structure. Because the inspection port position structure has a concave phenomenon, the drainage capacity of sewage and garbage becomes weak when passing through the inspection port position, which easily leads to poor drainage and easy blockage. The dirt deposited at the inspection port is easy to cause precipitation and difficult to discharge. Without the inspection port water trap, maintenance will be inconvenient. The present invention changes the structure of the inspection port and uses the top of the nut to be embedded in the U-shaped water trap body, forming a blockage for the drainage port, so that the original concave part is flush with the side, that is, there is no concave situation, thereby avoiding the phenomenon of poor drainage and easy blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the exploded structure of a pipeline connection structure of the utility model;

[0025] Figure 2 This is a cross-sectional view of an assembled pipeline connection structure of the utility model;

[0026] Figure 3 This is a cross-sectional view of a connecting pipe of the utility model;

[0027] Figure 4 This is a structural diagram of a drainage U-shaped water trap of the utility model;

[0028] Figure 5 This is a cross-sectional view of a U-shaped drainage trap after assembly according to the utility model;

[0029] Figure 6 The utility model is a schematic diagram of the exploded structure of a drainage U-shaped water trap.

[0030] The icon marks are explained as follows:

[0031] 1. First connecting part; 2. Second connecting part; 21. Third limiting part; 22. Fourth limiting part; 3. Notch; 4. Sealing structure; 41. First limiting part; 42. Second limiting part; 5. Drain outlet; 6. Eaves guard; 7. Nut; 101. First pipe; 102. Second pipe; 103. U-shaped water trap body. DETAILED DESCRIPTION

[0032] The present invention is further described below in conjunction with specific embodiments. The accompanying drawings are for illustrative purposes only and are schematic, not actual, representations. They should not be construed as limiting this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted from the drawings.

[0033] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and so on indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0034] Example 1

[0035] like Figures 1 to 2 The figure shows an embodiment of a pipe connection structure of the present invention, which includes a first connection part 1 and a second connection part 2. The inner wall of the first connection part 1 and the outer wall of the second connection part 2 are both arc-shaped structures. The first connection part 1 is sleeved on the outside of the second connection part 2. The bottom of the first connection part 1 is located below the maximum outer diameter of the second connection part 2, and the inner diameter of the bottom of the first connection part 1 is smaller than the maximum outer diameter of the second connection part 2.

[0036] The utility model buckles the first connection part 1 upside down on the outside of the second connection part 2 and uses the maximum outer diameter of the second connection part 2 to limit the first connection part 1, thereby preventing the first connection part 1 from accidentally detaching. The first connection part 1 and the second connection part 2 can be detached only when more force is applied. The direct buckling structure can make assembly more convenient and quick, improve installation efficiency, and reduce product production costs; and the inner wall of the first connection part 1 and the outer wall of the second connection part 2 are both designed as arc structures, which can enable the first connection part 1 to rotate relative to the second connection part 2, so that the relative angle between the first connection part 1 and the second connection part 2 can be adjusted after the first connection part 1 and the second connection part 2 are connected, thereby avoiding the pipeline from being twisted, making it easy to adjust the relative position of the pipeline, which is beneficial to the overall layout of the pipeline network; and can make the orientation of the pipeline more conducive to drainage.

[0037] The first connection part 1 and the second connection part 2 form an inverted structure, and the two are tightly matched. The maximum outer diameter of the second connection part 2 is used for limiting, so that after the first connection part 1 is sleeved on the second connection part 2, it is not easy to detach from the second connection part 2.

[0038] As one embodiment of the present invention, the arc-shaped structure of the second connecting portion 2 is symmetrically arranged about its maximum outer diameter. The symmetrically arranged arc-shaped structure presents a spherical shape, which is convenient and fast to assemble and rotate. It can also reduce the assembly of product accessories, improve installation efficiency, and reduce product production costs.

[0039] As one embodiment of the present invention, the bottom of the first connecting portion 1 is provided with a plurality of notches 3 arranged in a circumferential direction, and the notches 3 extend upward. The provision of the notches 3 can reduce the contact area when the first connecting portion 1 and the second connecting portion 2 are connected, thereby reducing the friction during the connection, and facilitating the connection between the first connecting portion 1 and the second connecting portion 2.

[0040] As one embodiment of the present invention, the notch 3 extends to the maximum inner diameter of the first connecting portion 1. This configuration improves the connection convenience between the first connecting portion 1 and the second connecting portion 2, increases connection efficiency, and reduces labor costs. Preferably, the bottom of the notch 3 has a smooth transition to reduce stress concentration.

[0041] As an embodiment of the present invention, a sealing structure 4 is further included, which is installed between the first connecting part 1 and the second connecting part 2. Preferably, the sealing structure 4 is a silicone or rubber gasket or washer, and the sealing structure 4 is used for waterproof sealing.

[0042] As one embodiment of the present invention, a first limiting portion 41 and a second limiting portion 42 are respectively provided at both ends of the sealing structure 4, a third limiting portion 21 is provided at the top of the second connecting portion 2, and a fourth limiting portion 22 is provided on the outer wall of the second connecting portion 2. The third limiting portion 21 is engaged with the first limiting portion 41 for position limiting, and the second limiting portion 42 is engaged with the fourth limiting portion 22 for position limiting. The first limiting portion 41 is engaged with the third limiting portion 21 at the top of the second connecting portion 2 for position limiting, and can form a barbed hook shape; the fourth limiting portion 22 is engaged with the third limiting portion 21 at the other end of the sealing structure 4 for position limiting, so that the sealing structure 4 can be securely installed at the second connecting portion 2.

[0043] Example 2

[0044] like Figure 3 The figure shows an embodiment of a connecting pipe of the present invention, including a first pipe 101 and a second pipe 102. The first pipe 101 is connected to the second pipe 102 through the pipe connection structure as described above. The first connecting part 1 is located in the first pipe 101, and the second connecting part 2 is located in the second pipe 102.

[0045] The connecting pipes of the present invention are connected by an inverted connection, and the pipe connection structure adopts an arc-shaped structural design, which can be rotated after the first pipe 101 and the second pipe 102 are connected, so as to facilitate the adjustment of the relative angle between the first pipe 101 and the second pipe 102. In this embodiment, the first pipe 101 can be a straight pipe or a curved pipe, and the second pipe 102 can be a straight pipe or a curved pipe. Here, the specific shape of the pipes is not limited. Within the scope of knowledge of those skilled in the art, the first connecting portion 1 can be integrally formed with the first pipe 101 by injection molding, and the second connecting portion 2 can be integrally formed with the second pipe 102 by injection molding.

[0046] Example 3

[0047] like Figures 4 to 6 The figure shows an embodiment of a drainage U-shaped water trap of the utility model, including a first pipe 101 and a U-shaped water trap body 103. There are two first pipes 101, and both ends of the two first pipes 101 are connected to the U-shaped water trap body 103 through the pipe connection structure as described above. The first connection part 1 is located in the first pipe 101, and the second connection part 2 is located in the U-shaped water trap body 103.

[0048] The utility model designs the connection structure between the first pipe 101 and the U-shaped water trap body 103 into an arc-shaped inverted structure, which can help to adjust the relative angle between the first pipe 101 and the U-shaped water trap body 103 after the first pipe 101 is connected to the U-shaped water trap body 103, thereby adjusting the direction of the first pipe 101, thereby avoiding the pipe from being twisted, and making the setting of the entire pipe network more ideal, which can not only ensure the service life of the pipe, but also facilitate drainage.

[0049] As an embodiment of the present invention, a drain outlet 5 is provided at the bottom of the U-shaped water trap body 103, and a guard eave 6 extends downward from the drain outlet 5. The guard eave 6 is detachably connected to a nut 7, and the top of the nut 7 is embedded in the U-shaped water trap body 103 to form a blockage for the drain outlet 5.

[0050] The U-shaped water trap of the present invention is also provided with an inspection port structure. The drainage port 5 is an inspection port structure. Because the inspection port position structure has a concave phenomenon, the drainage capacity of sewage and garbage is weakened when passing through the inspection port position, which is prone to poor drainage, easy blockage, and the dirt deposited at the inspection port is easy to cause sedimentation and difficult to discharge. Without an inspection port water trap, there will be inconvenience in maintenance. The present invention changes the structure of the inspection port, uses the top of the nut 7 to be embedded in the U-shaped water trap body 103, and uses the embedded part to block the depression, avoiding the occurrence of the concave phenomenon and forming a blockage for the drainage port 5, thereby avoiding the phenomenon of poor drainage and easy blockage. The top of the nut 7 is flush with the bottom of the U-shaped water trap body 103, just as if the drainage port 5 is not provided, avoiding the phenomenon of poor drainage, easy blockage, and sedimentation caused by dirt deposited at the inspection port in the U-shaped water trap. An external thread is provided on the outside of the eaves 6, which cooperates with the internal thread on the inside of the nut 7 to perform a threaded connection, so as to realize a detachable connection between the nut 7 and the eaves 6. When it is necessary to check the situation inside the U-shaped water trap, the nut 7 can be removed for inspection. After the inspection, the nut 7 can be installed to perform normal drainage.

[0051] As an embodiment of the present invention, the first pipe 101 is a curved pipe. Within the scope of knowledge of those skilled in the art, the first pipe 101 is not limited to being a curved pipe, and can also be a straight pipe.

[0052] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. A person skilled in the art will be able to make other variations or modifications based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A pipeline connection structure, characterized in that: The invention comprises a first connecting part (1) and a second connecting part (2), wherein the inner wall of the first connecting part (1) and the outer wall of the second connecting part (2) are both arc-shaped structures, the first connecting part (1) is sleeved on the outside of the second connecting part (2), the bottom of the first connecting part (1) is located below the maximum outer diameter of the second connecting part (2), and the inner diameter of the bottom of the first connecting part (1) is smaller than the maximum outer diameter of the second connecting part (2); and further comprises a sealing structure (4), wherein the sealing structure (4) is installed between the first connecting part (1) and the second connecting part (2); the sealing structure (4) is respectively provided with a first limiting part (41) and a second limiting part (42) at both ends, the top of the second connecting part (2) is provided with a third limiting part (21), the outer wall of the second connecting part (2) is provided with a fourth limiting part (22), the third limiting part (21) is clamped and limited with the first limiting part (41), and the second limiting part (42) is clamped and limited with the fourth limiting part (22).

2. The pipeline connection structure according to claim 1, characterized in that: The arc-shaped structure of the second connecting portion (2) is symmetrically arranged about its maximum outer diameter.

3. The pipeline connection structure according to claim 2, characterized in that: The bottom of the first connecting portion (1) is provided with a plurality of notches (3) in sequence along the circumferential direction, and the notches (3) extend upward.

4. The pipeline connection structure according to claim 3, characterized in that: The notch (3) extends to the maximum inner diameter of the first connecting part (1).

5. A connecting pipe, characterized in that: The invention comprises a first pipe (101) and a second pipe (102), wherein the first pipe (101) is connected to the second pipe (102) via a pipe connection structure according to any one of claims 1 to 4, wherein the first connection portion (1) is located in the first pipe (101), and the second connection portion (2) is located in the second pipe (102).

6. A drainage U-shaped water trap, characterized in that: The invention comprises a first pipe (101) and a U-shaped water trap body (103), wherein the first pipes (101) are two, and both ends of the two first pipes (101) and the U-shaped water trap body (103) are connected via a pipe connection structure according to any one of claims 1 to 4, wherein the first connection portion (1) is located in the first pipe (101), and the second connection portion (2) is located in the U-shaped water trap body (103).

7. The drainage U-shaped trap according to claim 6, characterized in that: A drainage outlet (5) is provided at the bottom of the U-shaped water trap body (103), and a retaining eave (6) extends downward from the drainage outlet (5). The retaining eave (6) is detachably connected to a nut (7), and the top of the nut (7) is embedded in the U-shaped water trap body (103) to form a blockage for the drainage outlet (5).

8. The drainage U-shaped trap according to claim 6 or 7, characterized in that: The first pipe (101) is a curved pipe.

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