CN218063831U

CN218063831U - Corrugated pipe socket joint type anti-drop structure

Info

Publication number: CN218063831U
Application number: CN202220918138.XU
Authority: CN
Inventors: 白万; 郑裕恭
Original assignee: Guizhou Shicheng Pipe Technology Co ltd
Current assignee: Guizhou Shicheng Pipe Technology Co ltd
Priority date: 2022-04-20
Filing date: 2022-04-20
Publication date: 2022-12-16
Anticipated expiration: 2032-04-20

Abstract

The utility model discloses a bellows socket joint formula anti-drop structure belongs to tubular product technical field, including socket joint end and flaring end, the socket joint end surface is equipped with a plurality of reinforced ripples, reinforced ripples extend in socket joint end surface circumference, and the equipartition is arranged in the length direction of socket joint end, the socket joint end is pegged graft in the flaring end, the flaring end is equipped with the taper skew section, the taper skew section inclines to intraductal, forms the anti-drop step structure; correspondingly, the surface of the spigot-and-socket end is provided with an anti-drop bulge. The technical scheme realizes the limit and locking of the connection of the corrugated pipe through the structure of the corrugated pipe, does not need to assist the connection through accessories such as internal sealing elements, clamping rings and the like, is very convenient and reliable in connection and has good anti-falling effect; meanwhile, a sealing ring structure is arranged at the port of the socket end, so that extrusion is formed between the sealing ring and the inclined inner wall of the flaring end, and sealing is realized.

Description

Corrugated pipe socket joint type anti-drop structure

Technical Field

The utility model belongs to the technical field of tubular product, a bellows connection structure is related to, especially, relate to a bellows socket joint formula anti-drop structure.

Background

In the prior art, various corrugated pipe socket structures mostly depend on the arrangement of an adapter at a plugging position or the adoption of elements such as an external sealing ring and a retainer ring as an anti-drop structure, so that the anti-drop effect of connection is achieved. For example, chinese utility model application No. CN202121415830.2 discloses a bellows structure, which comprises a tube body having a flared portion and a socket portion at both ends. The pipe wall at the front end of the socket part extends forwards to form a front end inserting part; the diameter of the flaring part is larger than that of the pipe body, and the socket part can be inserted into the flaring part which is butted with the other pipe body; a front section of water-swelling sealant is arranged between the front end inserting part and the flaring part; a groove between every two adjacent annular convex ribs forms a limiting groove, and a tail section water-swelling sealant is arranged between at least one limiting groove and the flared part; the invention has the advantages of high impact strength, excellent wear resistance, strong ring stiffness, hard texture and the like.

However, the elements in the structure are complex to install, the connection structure is complex, the connection reliability of the connection part is influenced by a plurality of factors, and once leakage occurs, the overhauling difficulty is high.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a bellows socket joint formula anti-drop structure realizes anti-drop through self inner structure, connects reliably, need not to set up unnecessary accessory in inside, simple structure, and erection joint is convenient.

The utility model discloses a realize through following technical scheme.

A socket type anti-drop structure of a corrugated pipe comprises a socket end and a flared end, wherein the surface of the socket end is provided with a plurality of reinforced ripples, the reinforced ripples extend in the circumferential direction of the surface of the socket end and are uniformly distributed and arranged in the length direction of the socket end, the socket end is inserted in the flared end, the flared end is provided with a conical inclined section, and the conical inclined section inclines into the pipe to form an anti-drop step structure; correspondingly, the surface of the socket end is provided with an anti-drop bulge.

Furthermore, a sealing ring is arranged at the front end of the socket end, and the sealing ring is a rubber ring.

Furthermore, the anti-falling bulge is positioned at the top of the third reinforced corrugation and close to the front side of the reinforced corrugation.

Furthermore, a plurality of outer wall reinforcing ribs are arranged on the outer surface of the flaring end, and the outer wall reinforcing ribs and the flaring end pipe wall are integrally formed, extend circumferentially on the outer wall of the flaring end and are distributed in the length direction of the flaring end pipeline.

Further, the inclination angle between the conical inclined section and the pipe wall is 10-15 degrees.

Furthermore, the end face of the anti-falling step is at a right angle with the pipe wall of the flared end.

The beneficial effects of the utility model are that:

a bellows socket joint formula anti-drop structure, set up anti-disengaging protrusion structure and anti-disengaging step structure at the socket joint end and the flaring end of bellows joint department respectively, during bellows articulate, only need insert the bell end with the socket joint in the flaring end to the extrusion targets in place, can realize the reliable connection of socket joint end and flaring end.

By adopting the technical scheme, the limit and the locking of the connection of the corrugated pipe can be directly realized through the structure of the corrugated pipe, the connection is not assisted by accessories such as an internal sealing element, a clamping ring and the like, the connection is very convenient and reliable, and the anti-falling effect is good; meanwhile, the sealing ring structure is arranged at the port of the socket end, so that the sealing ring and the inclined inner wall of the flared end are extruded to realize sealing, certain pressure is formed on the socket end by utilizing the elasticity of the sealing ring, and the elastic force counteracts the anti-falling step, so that the anti-falling bulge and the anti-falling step are more stable and reliable in connection and are less prone to slipping.

This technical scheme simple structure, easy realization is applicable to the bellows structure of various bores, buries underground in being particularly useful for the engineering that need not often overhaul such as field, and its joint strength is high, connects reliably, and is not fragile in the installation, is difficult for the slippage simultaneously, long service life.

Drawings

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

Fig. 2 is the local enlarged view of the joint of the anti-falling bulge and the anti-falling step of the utility model.

In the figure: 1-spigot and socket end, 101-reinforced corrugation, 102-anti-drop bulge, 2-flared end, 201-tapered section, 202-anti-drop step, 203-outer wall reinforcing rib and 3-sealing ring.

Detailed Description

The technical solution of the present invention is further described below with reference to the accompanying drawings, but the scope of protection claimed is not limited to the description.

As shown in fig. 1 and fig. 2, the bellows socket type anti-drop structure of the present invention includes a socket end 1 and a flared end 2, wherein the surface of the socket end 1 is provided with a plurality of reinforced ripples 101, the reinforced ripples 101 extend circumferentially on the surface of the socket end 1, and are uniformly distributed and arranged in the length direction of the socket end 1, the socket end 1 is inserted into the flared end 2, the flared end 2 is provided with a tapered section 201, and the tapered section 201 is inclined towards the inside of the pipe to form an anti-drop step 202 structure; correspondingly, the surface of the spigot-and-socket end 1 is provided with an anti-drop bulge 102. The anti-slip structure is formed by combining the anti-slip protrusion 102 and the anti-slip step 202, so that the spigot-and-socket end 1 cannot slip off after being inserted into the flared end 2.

And a sealing ring 3 is arranged at the front end of the socket end 1. The sealing ring 3 is a rubber ring and can be sealed in a common O shape, the sealing ring is sleeved at the front end of the spigot-and-socket end 1, the sealing ring 3 has certain elasticity, and the sealing ring 3 is in contact with the inner wall of the flared end 2 to form sealing; meanwhile, after the spigot-and-socket end 1 is connected, the sealing ring 3 is pressed, and under the action of the elastic force of the sealing ring 3, extrusion force is formed between the anti-falling bulge 102 and the anti-falling step 202, so that the anti-falling bulge 102 and the anti-falling step 202 are combined more stably, meanwhile, the sealing ring 3 is contacted with the inner wall of the flared end 2 more closely, and the sealing effect is better.

The anti-falling bulge 102 is positioned at the top of the third reinforced corrugation 101, the position of the anti-falling bulge 102 is close to the front side of the reinforced corrugation 101, and the anti-falling bulge 102 is positioned from the sealing ring 3, so that the distance between the anti-falling bulge 102 and the anti-falling bulge can just prop two positions to prevent the anti-falling bulge from loosening, and certain elasticity is provided between the two positions to accommodate reasonable errors in the product forming process.

The outer surface of the flaring end 2 is provided with a plurality of outer wall reinforcing ribs 203, the outer wall reinforcing ribs 203 and the pipe wall of the flaring end 2 are integrally formed, circumferentially extend on the outer wall of the flaring end 2 and are distributed in the length direction of the pipe of the flaring end 2. The outer wall reinforcing ribs 203 are mainly used for enhancing the radial supporting strength of the corrugated pipe.

The inclination angle between the conical inclined section 201 and the pipe wall is 10-15 degrees, a relatively slow inclination is formed, and the spigot-and-socket end 1 can be inserted conveniently; the end face of the anti-drop step 202 is at right angle to the pipe wall of the flared end 2, so as to form the best retaining effect.

Examples

As shown in fig. 1 and fig. 2, before assembly, a sealing ring 3 is sleeved at a port of the socket end 1; the spigot-and-socket end 1 is opposite to the flaring end 2, the spigot-and-socket end 1 is directly inserted into the flaring end 2, and the spigot-and-socket end 1 is pushed to move towards the flaring end 2 by force. The pipe wall of the flared end 2 has certain elasticity, the reinforced corrugation 101 on the surface of the spigot-and-socket end 1 also has certain elasticity, and under the action of external force, the anti-falling bulge 102 extrudes the inner side of the conical inclined section 201 to expand the conical inclined section 201 until the anti-falling bulge 102 slides into the tail end of the conical inclined section 201 and is propped against the anti-falling step 202. At the moment, the sealing ring 3 arranged at the front end of the socket end 1 is tightly attached to the inner wall of the flared end 2, so that the sealing effect is realized.

Once spigot-and-socket end 1 and flared end 2 are connected and assembled in place, spigot-and-socket end 1 is extremely difficult to withdraw from the flared end due to the restriction of anti-drop step 202 on anti-drop bulge 102; if the two are separated by a strong force, irreparable damage will occur to the anti-run-off projection 102 and the anti-run-off step 202, even to the spigot end 1 and the flared end 2 of the entire pipe joint.

Therefore, after the socket end 1 and the flaring end 2 of the corrugated pipe are connected by adopting the technical scheme, the connection is very reliable and is not easy to loosen under the normal use condition; meanwhile, the structure is simple, the sealing is reliable, and the leakage is not easy to occur.

The above embodiments are merely exemplary, and are not to be construed as limiting the scope of the present invention, so long as the present invention is modified and replaced simply, which falls within the scope of the present invention.

Claims

1. The utility model provides a bellows socket joint formula anti-drop structure, includes spigot and socket end (1) and flaring end (2), spigot and socket end (1) surface is equipped with a plurality of reinforced ripples (101), reinforced ripples (101) extend in spigot and socket end (1) surface circumference, and the equipartition is arranged on the length direction of spigot and socket end (1), spigot and socket end (1) is pegged graft in flaring end (2), its characterized in that: the flared end (2) is provided with a conical inclined section (201), and the conical inclined section (201) inclines into the pipe to form an anti-drop step (202) structure; correspondingly, the surface of the socket end (1) is provided with an anti-drop bulge (102).

2. The socket and spigot type anti-falling structure of the corrugated pipe as claimed in claim 1, wherein: the front end of the spigot-and-socket end (1) is provided with a sealing ring (3), and the sealing ring (3) is a rubber ring.

3. The socket and spigot type anti-falling structure of the corrugated pipe as claimed in claim 1, wherein: the anti-falling bulge (102) is positioned at the top of the third reinforced corrugation (101) and is close to the front side of the reinforced corrugation (101).

4. The socket type anti-falling structure of the corrugated pipe as claimed in claim 1, wherein: the outer surface of the flaring end (2) is provided with a plurality of outer wall reinforcing ribs (203), the outer wall reinforcing ribs (203) and the pipe wall of the flaring end (2) are integrally formed, extend in the circumferential direction on the outer wall of the flaring end (2), and are distributed in the length direction of the pipeline of the flaring end (2).

5. The socket type anti-falling structure of the corrugated pipe as claimed in claim 1, wherein: the inclination angle between the conical oblique section (201) and the pipe wall is 10-15 degrees.

6. The socket type anti-falling structure of the corrugated pipe as claimed in claim 1, wherein: the end face of the anti-falling step (202) is at a right angle with the pipe wall of the flaring end (2).