CN213452187U

CN213452187U - Flexible sealing self-locking connecting structure of drain pipe

Info

Publication number: CN213452187U
Application number: CN202021036248.0U
Authority: CN
Inventors: 潘小雄
Original assignee: Foshan Sanshui Shi Tong Tubular Product Co ltd
Current assignee: Foshan Sanshui Shi Tong Tubular Product Co ltd
Priority date: 2020-06-08
Filing date: 2020-06-08
Publication date: 2021-06-15
Anticipated expiration: 2030-06-08

Abstract

The utility model discloses a flexible sealing self-locking connecting structure of a drain pipe, which comprises a pipe, a first connector and a second connector, wherein the first connector and the second connector are formed at two ends of the pipe; the second connector comprises a circle of inner convex ring formed at the end part of the pipe, the inner diameter of the inner convex ring is matched with the inner diameter of the pipe, the thickness of the inner convex ring is smaller than that of the pipe, the sum of the thicknesses of the inner convex ring and the outer convex ring is matched with that of the pipe, an outer convex ring matched with the inner convex ring is formed on the outer wall of the inner convex ring, and the outer convex ring is matched with the inner convex ring in a complementary mode after the first connector is connected with the second connector.

Description

Flexible sealing self-locking connecting structure of drain pipe

Technical Field

The utility model relates to a municipal administration pipeline field especially relates to a drain pipe flexible seal auto-lock connection structure.

Background

The drain pipe is one of the important pipes in municipal pipe work, and good sealing property and structural stability are required for the drain pipe in order to avoid leakage of the pipe. The existing drain pipe joint is usually connected by adopting an electric heat welding mode, but the cost is higher, a power supply is needed in the field construction process, and the construction threshold is higher. Chinese utility model patent with publication number CN207049486U discloses a hooker formula double rubber circle PP skeleton reinforcing PE spiral corrugated pipe joint, this connection structure need not rely on the power to realize and the leakproofness is good, nevertheless because only rely on deformable sealed rubber circle fixed connection between the pipeline, is unfavorable for improving connection structure's stability.

Disclosure of Invention

An object of the utility model is to overcome prior art's not enough, provide a novel structure, connect the water pipe flexible seal auto-lock connection structure that stable leakproofness is good.

In order to realize the above purpose, the utility model discloses the technical scheme who adopts is:

a flexible sealing self-locking connecting structure of a drain pipe comprises pipes, a first connecting head and a second connecting head, wherein the first connecting head and the second connecting head are formed at two ends of the pipes; the second connector comprises a circle of inner convex ring formed at the end part of the pipe, the inner diameter of the inner convex ring is matched with the inner diameter of the pipe, the thickness of the inner convex ring is smaller than that of the pipe, the sum of the thicknesses of the inner convex ring and the outer convex ring is matched with that of the pipe, an outer convex ring matched with the inner convex ring is formed on the outer wall of the inner convex ring, and the outer convex ring is matched with the inner convex ring in a complementary mode after the first connector is connected with the second connector.

The utility model has the advantages that: the utility model discloses a drain pipe flexible seal auto-lock connection structure, thereby its first connector and second connector evagination ring and the complementary cooperation of interior bulge loop form locking structure and can effectively resist the axial tensile force of tubular product after connecting, improve connection stability between the tubular product, prevent the connection separation between the tubular product. Meanwhile, the sealing function is realized by the complementary fit of the outer convex ring and the inner convex ring, so that the sealing property of the pipe is improved.

Furthermore, the sections of the outer convex ring and the inner convex ring are both triangular structures. Because the first connector and the second connector are connected in an inserting mode, the triangular structures of the outer convex ring and the inner convex ring can play a guiding role when the outer convex ring and the inner convex ring are connected, so that the outer convex ring and the inner convex ring can be smoothly connected.

Furthermore, a circle of annular groove is formed on the outer surface of the inner convex ring on the rear side of the outer convex ring. The annular groove has the effect that the inner convex ring can generate slight inward-turning deformation at the annular groove in the process of inserting the first connector and the second connector, so that the first connector and the second connector are smoothly connected.

Further, the length of the inner convex ring is the same as that of the outer convex ring. Because the length of the inner convex ring is the same as that of the outer convex ring, the first connector and the second connector are mutually covered after being connected.

Furthermore, a guide inclined plane is formed on the front side of the inner convex ring, and a spacing space is reserved between the guide inclined plane of the inner convex ring and the inner wall of the outer convex ring after the first connector and the second connector are connected. The guide inclined plane can guide the inward-turning deformation of the inner convex ring when the first connector and the second connector are connected, and the avoidance function is achieved.

Drawings

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

Fig. 2 is a connection structure diagram of the first connector and the second connector of the present invention.

Fig. 3 is a partially enlarged view of the area a in fig. 1.

Fig. 4 is a partially enlarged view of the region B in fig. 1.

Fig. 5 is a partially enlarged view of the area C in fig. 2.

The pipe fitting comprises a pipe 1, a first connecting head 2, an outer convex ring 21, an inner convex ring 22, a second connecting head 3, an inner convex ring 31, an outer convex ring 32, an annular groove 33 and a guide inclined plane 34.

Detailed Description

The claimed technical solution of the present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 to 5, the flexible sealing self-locking connection structure for the drain pipe in the present embodiment includes a pipe 1, and a first connector 2 and a second connector 3 formed at two ends of the pipe 1, wherein the pipe 1 is connected with the first connector 2 and the second connector 3 at the first position.

In this embodiment, the first connection head 2 includes a circle of outer convex ring 21 formed at an end of the tube 1, an outer diameter of the outer convex ring 21 is matched with an outer diameter of the tube 1 so that the outer convex ring 21 and an outer wall of the tube 1 are located on the same cylindrical surface, a thickness of the outer convex ring 21 is smaller than a thickness of the tube 1, a plurality of circles of inner convex rings 22 arranged along a length direction of the tube 1 are formed on an inner wall of the outer convex ring 21, and a cross section of the inner convex ring 22 is in a triangular structure in this embodiment.

In this embodiment, the second connector 3 includes a circle of inner convex ring 31 formed at the end of the pipe 1, and the inner diameter of the inner convex ring 31 is matched with the inner diameter of the pipe 1, so that the inner convex ring 31 and the inner wall of the pipe 1 are on the same cylindrical surface. The thickness of the inner convex ring 31 is smaller than that of the pipe 1, the sum of the thicknesses of the inner convex ring 31 and the outer convex ring 21 is matched with that of the pipe 1, and the lengths of the inner convex ring 31 and the outer convex ring 21 are the same. Since the inner bead 31 and the outer bead 21 have the same length, they cover each other when the first connector 2 and the second connector 3 are connected. An outer convex ring 32 matched with the inner convex ring 22 is formed on the outer wall of the inner convex ring 31, a ring of annular groove 33 is formed on the outer surface of the inner convex ring 31 on the rear side of the outer convex ring 32, and the annular groove 33 has the function that the inner convex ring 31 can generate slight inward-turning deformation at the annular groove 33 in the process of inserting the first connector 2 and the second connector 3, so that the first connector 2 and the second connector 3 are smoothly connected.

After the first connector 2 and the second connector 3 are connected, the outer convex ring 32 is complementarily matched with the inner convex ring 22, in this embodiment, the cross section of the outer convex ring 32 is in a triangular structure, and since the first connector 2 and the second connector 3 are connected in an inserting manner, the triangular structure of the outer convex ring 32 and the inner convex ring 22 can play a guiding role when the two are connected, so that the two can be smoothly connected. The front side of the inner convex ring 31 is formed with a guiding inclined plane 34, and after the first connector 2 and the second connector 3 are connected, a spacing space is left between the guiding inclined plane 34 of the inner convex ring 31 and the inner wall of the outer convex ring 21. The guiding inclined plane can guide the inward convex ring 31 to inwards turn and deform when the first connector 2 and the second connector 3 are connected, and meanwhile, the inward convex ring also plays a role in avoiding.

The above-described embodiments are merely preferred embodiments of the present invention, which are not intended to limit the present invention in any way. Those skilled in the art can make further changes and modifications to the invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the invention. Therefore, the content of the technical scheme of the utility model, according to the equivalent change made by the idea of the utility model, should be covered in the protection scope of the utility model.

Claims

1. The utility model provides a drain pipe flexible seal auto-lock connection structure, include tubular product (1) and shaping in first connector (2) and second connector (3) at tubular product (1) both ends, connect its characterized in that through first connector (2) and second connector (3) head between tubular product (1): the first connecting head (2) comprises a circle of outer convex ring (21) formed at the end part of the pipe (1), the outer diameter of the outer convex ring (21) is matched with the outer diameter of the pipe (1), the thickness of the outer convex ring (21) is smaller than that of the pipe (1), and a plurality of circles of inner convex rings (22) arranged along the length direction of the pipe (1) are formed on the inner wall of the outer convex ring (21); the second connector (3) comprises a circle of inner convex ring (31) formed at the end part of the pipe (1), the inner diameter of the inner convex ring (31) is matched with the inner diameter of the pipe (1), the thickness of the inner convex ring (31) is smaller than that of the pipe (1), the sum of the thicknesses of the inner convex ring (31) and the outer convex ring (21) is matched with that of the pipe (1), the outer wall of the inner convex ring (31) is also formed with an outer convex ring (32) matched with the inner convex ring (22), when the first connector (2) is connected with the second connector (3), the outer convex ring (32) is complementarily matched with the inner convex ring (22), the length of the inner convex ring (31) is the same as that of the outer convex ring (21), a guide inclined plane (34) is formed on the front side of the inner convex ring (31), and after the first connector (2) and the second connector (3) are connected, a spacing space is reserved between the guide inclined surface (34) of the inner convex ring (31) and the inner wall of the outer convex ring (21).

2. The drain pipe flexible sealing self-locking connecting structure according to claim 1, characterized in that: the sections of the outer convex ring (32) and the inner convex ring (22) are both triangular structures.

3. The drain pipe flexible sealing self-locking connecting structure according to claim 1, characterized in that: the outer surface of the inner convex ring (31) is provided with a ring-shaped groove (33) formed on the rear side of the outer convex ring (32).