CN217874745U

CN217874745U - A sealing connection structure and top pull pipe for tubular product

Info

Publication number: CN217874745U
Application number: CN202221367347.6U
Authority: CN
Inventors: 温华启
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-06-02
Filing date: 2022-06-02
Publication date: 2022-11-22
Anticipated expiration: 2032-06-02

Abstract

The utility model discloses a sealing connection structure and top pull pipe material for tubular product, including interface and bellmouth, be provided with the same two at least annular first convex parts and the second convex part of quantity on the outer wall of interface and the inner wall of bellmouth respectively, be provided with first changeover portion on the interface outer wall that adjoins to the first convex part furthest apart from the mouth of pipe of interface, be provided with the second changeover portion on the interface inner wall that adjoins to the second convex part nearest apart from the mouth of pipe of bellmouth the interface assembly when inserting the bellmouth, first convex part and second convex part meshing joint and first changeover portion and the laminating of second changeover portion, it is equipped with the sealing washer still to overlap on the first changeover portion. The utility model discloses a butt joint convenient operation is swift to all level inside and outside the butt joint back, the part of no protrusion inside and outside is suitable for in the excavation or the non-excavation occasion, and its application scope is extensive.

Description

A sealing connection structure and top pull pipe for tubular product

Technical Field

The utility model relates to a tubular product field specifically is a sealing connection structure and top pull pipe material for tubular product.

Background

In the water supply and drainage of public infrastructure and homes, various pipes are often required to be arranged. The prior pipelines are various in types, and HDPE (high-density polyethylene) pipes are widely applied at present, and need to be formed by butt joint of a plurality of sections like other pipelines when in use. The butt joint mode of the HDPE pipe generally comprises the connection modes such as hot melt butt joint, clamp connection and the like, wherein in the butt joint modes, an inner flanging is formed by hot melt butt joint and needs to be cut off, a certain space is needed during construction, and the operation is troublesome; the clamp connection needs to use a special clamp for locking, the operation is troublesome, and the clamp locking is generally only suitable for occasions needing excavation construction. In addition, when the HDPE pipes are butted, a socket can be cut at one end, a socket can be cut at the other end, the HDPE pipes are spliced together, and a sealing ring is arranged between the HDPE pipes to play a sealing role, but the HDPE pipes are not pulled to resist drawing and are easy to disjunction.

Disclosure of Invention

For solving the defects of the prior art, the utility model provides a convenient butt joint, wide application range and a sealed self-locking structure for pipes.

The utility model provides a technical scheme that the problem adoption is:

the utility model provides a sealing connection structure for tubular product, includes interface and bellmouth, be provided with the same at least two rings of annular first convex part and second convex part of quantity on the outer wall of interface and the inner wall of bellmouth respectively, be provided with first changeover portion on the interface outer wall that adjoins with the first convex part farthest away from the interface mouth of pipe, be provided with the second changeover portion on the bellmouth inner wall that adjoins with the second convex part nearest apart from the bellmouth of pipe mouth of pipe when the interface assembly inserts the bellmouth, first convex part and second convex part meshing joint and first changeover portion and the laminating of second changeover portion, still the cover is equipped with the sealing washer on the first changeover portion.

According to the technical scheme for further improvement, the first transition section is provided with a sealing groove, and the sealing ring is sleeved in the sealing groove.

According to the further improved technical scheme, the first transition section and the second transition section are conical surfaces, the diameter of the conical surface of the first transition section close to the pipe orifice is smaller than that of the conical surface of the first transition section far away from the pipe orifice, and the diameter of the conical surface of the second transition section close to the pipe orifice is larger than that of the conical surface of the second transition section far away from the pipe orifice.

According to a further improved technical scheme, the diameter of the conical surface of the first transition section far away from the pipe orifice is smaller than the diameter of the outer wall of the insertion port.

In a further improved technical scheme, the sealing groove is arranged in the middle of the conical surface of the first transition section.

In a further improved technical scheme, the first convex part and the second convex part are both formed by an intersecting pushing surface and a stopping surface, and when the socket is assembled and inserted into the socket, the pushing surface of the first convex part and the pushing surface of the second convex part are mutually extruded, so that the socket is contracted and the socket is expanded, and after the socket is assembled into the socket, the retaining surface of the second convex part is abutted against the retaining surface of the first convex part.

According to the further improved technical scheme, the root of the retaining surface of the previous first convex part is abutted with the root of the pushing surface of the next first convex part, and the root of the retaining surface of the previous second convex part is abutted with the root of the pushing surface of the next second convex part.

According to the further improved technical scheme, conical surfaces are arranged on the outer wall of the inserting port and the inner wall of the bearing port, the diameter of the conical surface on the inserting port, close to the pipe orifice, is smaller than the diameter of the conical surface on the bearing port, far away from the pipe orifice, the diameter of the conical surface on the bearing port, close to the pipe orifice, is larger than the diameter of the conical surface on the bearing port, far away from the pipe orifice, and the first convex portion and the second convex portion are arranged on conical surfaces of the inserting port and the bearing port respectively.

According to the further improved technical scheme, flat wall sections are arranged on the outer wall between the extrusion surface nearest to the nozzle of the insertion port and on the inner wall adjacent to the extrusion surface farthest from the nozzle of the receiving port.

The utility model also discloses a push-pull pipe, including having two orificial tubular products, two orificial be interface and bellmouth respectively, be provided with above-mentioned arbitrary technical scheme sealed auto-lock structure on it.

The utility model has the advantages that: the utility model discloses insert the interface of another tubular product with the interface of a tubular product during use, make first convex part and second convex part meshing joint above that, first changeover portion and the laminating of second changeover portion, the sealing washer that sets up on the first changeover portion receives extrusion deformation to form sealedly, and both just docks completely together this moment, compare prior art, the utility model discloses a butt joint convenient operation is swift to all level inside and outside the butt joint back, the part of no protrusion inside and outside is suitable for among the excavation or the non-excavation occasion, and its application scope is extensive.

Drawings

FIG. 1 is a schematic view of a half-section three-dimensional structure of the present invention;

FIG. 2 is an enlarged schematic view at A of FIG. 1;

fig. 3 is a schematic structural diagram of the docking of the socket and the socket of the present invention.

Detailed Description

The conception, the specific structure and the technical effects of the present invention will be clearly and completely described in the following with reference to the embodiments and the accompanying drawings, so as to fully understand the objects, the features and the effects of the present invention. The technical characteristics in the invention can be interactively combined to form a new embodiment on the premise of not conflicting with each other.

Referring to fig. 1 to 3, a sealing connection structure for a pipe includes an insertion port 1 and a socket 2, wherein the outer wall of the insertion port 1 and the inner wall of the socket 2 are respectively provided with annular first convex portions 10 and annular second convex portions 20, the number of the annular first convex portions 10 and the number of the annular second convex portions 20 are the same, the outer wall of the insertion port 1 adjacent to the first convex portion 10 farthest from the pipe orifice of the insertion port 1 are provided with a first transition section 11, the inner wall of the socket 2 adjacent to the second convex portion 20 nearest to the pipe orifice of the socket 2 is provided with a second transition section 21, and the first transition section 11 is further sleeved with a sealing ring 3. When the socket 1 is assembled and inserted into the socket 2, the first convex part 10 and the second convex part 20 are engaged and clamped, the first transition section 11 is attached to the second transition section 21, and the sealing ring 3 is extruded and attached to the first transition section 11 and the second transition section 21 to form sealing. In this embodiment, each of the first protrusion 10 and the second protrusion 20 includes at least two turns, preferably three or four turns.

In order to facilitate the installation and fixation of the sealing ring 3, the first transition section 11 is provided with a sealing groove 12, and the sealing ring 3 is sleeved in the sealing groove 12 to limit the sealing ring 3.

In a preferred embodiment, referring to fig. 1 and 2, the first transition section 11 and the second transition section 21 are both conical surfaces, the diameter of the conical surface of the first transition section 11 near the pipe orifice is smaller than that far from the pipe orifice, and the diameter of the conical surface of the second transition section 21 near the pipe orifice is larger than that far from the pipe orifice. By adopting the conical surface structure, after the first convex part 10 and the second convex part 20 are engaged and clamped, the first transition section 11 and the second transition section 21 can be in close contact fit.

In a further improved embodiment, the diameter of the conical surface of the first transition section 11 far away from the pipe orifice is smaller than the diameter of the outer wall of the socket 1, the structure enables a step to be formed between the conical surface of the first transition section 11 and the outer wall of the socket 1, after the socket 1 and the socket 2 are plugged, the step is abutted against the end surface of the pipe orifice of the socket 2, so that the outer surface looks more flat and smooth, and meanwhile, the abutment of the step against the end surface of the pipe orifice of the socket 2 also plays a certain limiting role, and the bending resistance is enhanced. In this structure, the sealing groove 12 is disposed in the middle of the conical surface of the first transition section 11.

In the above embodiment, in order to enable the socket 1 to be smoothly inserted into the socket 2, the first protrusion 10 and the second protrusion 20 are further improved to be formed by the extruding surface 100 and the stopping surface 200 which are intersected with each other, and when the socket 1 is assembled and inserted into the socket 2, the extruding surface 100 of the first protrusion 10 and the extruding surface 100 of the second protrusion 20 are pressed against each other, so that the socket 1 is contracted and the socket 2 is expanded, and the deformation causes one sheet of contraction, thereby facilitating the insertion of the socket 1 into the socket 2. In addition, after the socket 1 is assembled into the socket 2, the retaining surface 200 of the second protrusion 20 abuts against the retaining surface 200 of the first protrusion 10, so that the two are not easy to loosen and separate.

With further improvement of the structure of the first convex portion 10 and the second convex portion 20, referring to fig. 1 to 3, the root of the retaining surface 200 of the first convex portion 10 before abuts against the root of the pushing surface 100 of the first convex portion 10 after the first convex portion, and the root of the retaining surface 200 of the second convex portion 20 before abuts against the root of the pushing surface 100 of the second convex portion 20 after the second convex portion. This improvement allows the plurality of first protrusions and the plurality of second protrusions 20 to be formed in a compact structure.

In addition, the outer wall of the socket 1 and the inner wall of the socket 2 are both provided with conical surfaces, wherein the diameter of the conical surface on the socket 1 close to the pipe orifice is smaller than the diameter far away from the pipe orifice, the diameter of the conical surface on the socket 2 close to the pipe orifice is larger than the diameter far away from the pipe orifice, and the first convex part 10 and the second convex part 20 are respectively arranged on the conical surfaces of the socket 1 and the socket 2. The design makes the outer diameter of the spigot 1 gradually increase from the pipe orifice to the inside, and the inner diameter of the socket 2 gradually decreases from the pipe orifice to the inside, so that the two are more smoothly inserted and matched. In addition, a further improvement is that the outer wall between the pushing surface 100 nearest to the mouth of the spigot 1 and the mouth of the spigot 1 is provided with a flat wall section 300, and similarly, the inner wall of the pushing surface 100 farthest from the mouth (2) of the spigot is provided with a flat wall section 300.

The utility model also discloses a push-pull pipe, including having two orificial tubular product, two orificial be interface 1 and bellmouth 2 respectively, be provided with the sealed auto-lock structure of above-mentioned tubular product on it.

The utility model discloses a top-pull pipe, including having two orificial tubular product, these two mouths of pipe are interface 1 and bellmouth 2 respectively, are provided with foretell sealed auto-lock structure on this interface 1 and bellmouth 2. During butt joint, the inserting port 1 of one pipe is inserted into the carrying port 2 of the other pipe, and the sealing self-locking structure on the inserting port is changed and locked to complete butt joint.

It should be noted that the above is only further elaborated with reference to the embodiments, and does not limit the scope of the present invention, and if the technology is simply modified, the purpose of the present invention can be achieved by the substantially same means, and all of the purposes of the present invention shall fall within the scope of the present invention.

Claims

1. A sealing connection structure for pipes is characterized in that: the sealing ring inserting device comprises an inserting port (1) and a bearing port (2), at least two rings of annular first convex parts (10) and second convex parts (20) with the same quantity are arranged on the outer wall of the inserting port (1) and the inner wall of the bearing port (2) respectively, a first transition section (11) is arranged on the outer wall of the inserting port (1) adjacent to the first convex part (10) farthest away from the pipe orifice of the inserting port (1), a second transition section (21) is arranged on the inner wall of the bearing port (2) adjacent to the second convex part (20) nearest to the pipe orifice of the bearing port (2), when the inserting port (2) is assembled and inserted into the inserting port (1), the first convex part (10) is meshed and clamped with the second convex part (20), the first transition section (11) is attached to the second transition section (21), and a sealing ring (3) is further sleeved on the first transition section (11).

2. A sealing connection structure for pipes according to claim 1, characterized in that: a sealing groove (12) is formed in the first transition section (11), and the sealing ring (3) is sleeved in the sealing groove (12).

3. A sealing connection structure for pipes according to claim 2, characterized in that: the first transition section (11) and the second transition section (21) are conical surfaces, the diameter of the conical surface of the first transition section (11) close to the pipe orifice is smaller than that of the conical surface of the first transition section far away from the pipe orifice, and the diameter of the conical surface of the second transition section (21) close to the pipe orifice is larger than that of the conical surface of the second transition section far away from the pipe orifice.

4. A sealing connection structure for pipes according to claim 3, characterized in that: the diameter of the conical surface of the first transition section (11) far away from the pipe orifice is smaller than that of the outer wall of the inserting port (1).

5. A sealing connection for tubing according to claim 3, wherein: the sealing groove (12) is arranged in the middle of the conical surface of the first transition section (11).

6. A sealing connection for pipes according to claim 2, characterized in that: the first convex part (10) and the second convex part (20) are formed by a pushing surface (100) and a stopping surface (200) which are intersected, when the socket (1) is assembled and inserted into the socket (2), the pushing surface (100) of the first convex part (10) and the pushing surface (100) of the second convex part (20) are mutually squeezed, the socket (1) is contracted, the socket (2) is expanded, and after the socket (1) is assembled into the socket (2), the stopping surface (200) of the second convex part (20) abuts against the stopping surface (200) of the first convex part (10).

7. A sealing connection structure for pipes according to claim 6, characterized in that: the root of the backstop surface (200) of the previous first convex part (10) is abutted with the root of the pushing surface (100) of the next first convex part (10), and the root of the backstop surface (200) of the previous second convex part (20) is abutted with the root of the pushing surface (100) of the next second convex part (20).

8. A sealing connection for tubing according to claim 7, wherein: the outer wall between the pushing surface (100) nearest to the pipe orifice of the interface (1) and the inner wall adjacent to the pushing surface (100) farthest from the pipe orifice of the bearing port (2) inwards are both provided with flat wall sections (300).

9. A sealing connection structure for pipes according to any one of claims 1 to 8, characterized in that: the outer wall of the inserting port (1) and the inner wall of the bearing port (2) are provided with conical surfaces, wherein the diameter of the conical surface on the inserting port (1) close to the pipe orifice is smaller than that of the conical surface on the bearing port (2) far away from the pipe orifice, the diameter of the conical surface on the bearing port (2) close to the pipe orifice is larger than that of the conical surface on the bearing port far away from the pipe orifice, and the first convex part (10) and the second convex part (20) are respectively arranged on the conical surfaces of the inserting port (1) and the bearing port (2).

10. A top pull pipe comprising a pipe having two nozzles, characterized in that: the two nozzles are respectively a socket (1) and a faucet (2), and are provided with the sealing connection structure as claimed in any one of claims 1 to 9.