CN217356021U

CN217356021U - Double-sealing limiting sleeve connecting structure for straight corrugated pipe

Info

Publication number: CN217356021U
Application number: CN202220471509.4U
Authority: CN
Inventors: 何君
Original assignee: Anhui Yuanli Hi Tech Materials Co ltd
Current assignee: Anhui Yuanli Hi Tech Materials Co ltd
Priority date: 2022-03-03
Filing date: 2022-03-03
Publication date: 2022-09-02
Anticipated expiration: 2032-03-03

Abstract

The utility model relates to a bellows connection field specifically is a straight bellows is with double seal limit sleeve connection structure. The sealing device comprises a corrugated pipe, a sealing ring and a sleeve; the corrugated pipe, the sealing ring and the sleeve are of a rotary structure and are coaxially arranged, the corrugated pipe is provided with a plurality of wave crest portions along the axial direction, wave trough portions are formed between every two adjacent wave crest portions, the sealing ring and the sealing ring are arranged at the two wave trough portions in a side-by-side clamping and sleeving mode, the sealing ring and the sealing ring are all tightly abutted to the inner circumferential surface of the sleeve, and the inner circumferential surface of the sleeve is provided with clamping grooves for the sealing ring to be clamped in. The utility model discloses can improve straight bellows and muffjoint leakproofness and prevent to appear revealing.

Description

Double-sealing limiting sleeve connecting structure for straight corrugated pipe

Technical Field

The utility model relates to a bellows joint field especially relates to a straight double-seal limit sleeve connection structure for bellows.

Background

The drainage pipe is divided into a plastic drainage pipe, a concrete pipe, a reinforced concrete pipe and the like, mainly undertakes the drainage tasks of rainwater, sewage, farmland irrigation and drainage and the like, and is particularly used for longitudinal and transverse drainage and water permeation of the expressway; the back of various retaining walls and side ditches of the expressway are vertically and horizontally drained; draining water from the tunnel and the underground passage; water supply and drainage of municipal works, water purification plants, sewage plants, refuse dumps and the like; slope water and soil conservation is developed on hilly land, and the like. The corrugated pipe belongs to a plastic drain pipe and is widely applied to drainage under various scenes.

When connecting a plurality of straight bellows, if straight bellows tip does not have the flaring structure, then need use the sleeve to connect, but when using sleeve and a straight bellows to be connected, generally only use a rubber circle to carry out sealing connection, sealed effect is not good, the condition of revealing appears easily.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the purpose is to the problem that exists among the background art, provides one kind can improve straight bellows and muffjoint leakproofness and prevent the straight bellows that reveals and use double seal limit sleeve connection structure.

The technical scheme of the utility model, a straight bellows is with double-seal spacing sleeve connection structure, including bellows, sealing washer, sealing ring and sleeve.

The corrugated pipe, the sealing ring and the sleeve are of a rotary structure and are coaxially arranged, the corrugated pipe is provided with a plurality of wave crest portions along the axial direction, wave trough portions are formed between every two adjacent wave crest portions, the sealing ring and the sealing ring are arranged at the two wave trough portions in a side-by-side clamping and sleeving mode, the sealing ring and the sealing ring are all tightly abutted to the inner circumferential surface of the sleeve, and the inner circumferential surface of the sleeve is provided with clamping grooves for the sealing ring to be clamped in.

Preferably, the sealing ring is a rubber ring.

Preferably, the distance from the sealing ring to the axial middle part of the corrugated pipe is smaller than the distance from the sealing ring to the axial middle part of the corrugated pipe.

Preferably, the sealing ring includes a connecting plate portion and a plurality of connecting ring portions arranged in a stepwise manner, the connecting plate portion is located at the valley portion, the plurality of connecting ring portions are integrally connected to an outer peripheral surface of the connecting plate portion, and diameters of the plurality of connecting ring portions gradually increase in a direction away from the sealing ring.

Preferably, the sleeve is provided with a U-shaped opening and forms a buckle limiting part, and the buckle limiting part is provided with an inner convex part which can be clamped and embedded at the wave trough part.

Preferably, the outer side surface of the handle limiting part is provided with a plurality of grooves side by side.

Compared with the prior art, the utility model discloses following profitable technological effect has:

the utility model discloses can improve straight bellows and muffjoint leakproofness and prevent to appear revealing. The sealing rings and the sealing rings are respectively sleeved at the two wave trough parts on the corrugated pipe and have sealing functions. When connecting bellows and sleeve, inside inserting the sleeve with bellows tip, the sealing washer card is gone into and is supported tightly in draw-in groove department, can also play the installation positioning action when playing sealed effect, and the sealing ring supports tightly on the sleeve inner peripheral surface, and sealing washer and sealing ring combined action have effectually improved the sealing performance when bellows and muffjoint.

Drawings

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

fig. 2 is a partial structural sectional view of an embodiment of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2;

fig. 4 is an enlarged view of the structure at B in fig. 2.

Reference numerals: 1. a bellows; 2. a seal ring; 3. a seal ring; 4. a sleeve; 41. a handle limiting part; 411. a groove; 401. a card slot; 402. and (4) opening.

Detailed Description

Example one

As shown in fig. 1-4, the present invention provides a dual-sealing limiting sleeve connection structure for a straight corrugated pipe, which includes a corrugated pipe 1, a sealing ring 2, a sealing ring 3 and a sleeve 4.

Bellows 1, sealing washer 2, sealing ring 3 and sleeve 4 are gyration shape structure and coaxial setting, and bellows 1 has a plurality of crest portions along the axial, forms the trough portion between the adjacent crest portion, and sealing washer 2 and sealing ring 3 are the snap fit side by side and are set up in two trough portions department, and sealing washer 2 is the rubber circle, and sealing washer 2 and sealing ring 3 all support tightly on the inner peripheral surface of sleeve 4, and the inner peripheral surface of sleeve 4 has the draw-in groove 401 that supplies sealing washer 2 card to go into.

This embodiment can improve straight bellows and muffjoint leakproofness and prevent to appear revealing. The two wave trough parts on the corrugated pipe 1 are respectively sleeved with a sealing ring 2 and a sealing ring 3, and the sealing ring 2 and the sealing ring 3 play a sealing role. When connecting bellows 1 and sleeve 4, inside inserting sleeve 4 with bellows 1 tip, sealing washer 2 card is gone into and is supported tightly in draw-in groove 401 department, can also play the installation positioning action when playing sealed effect, and sealing ring 3 supports tightly on sleeve 4 inner peripheral surface, and sealing washer 2 and sealing ring 3 combined action have effectually improved the sealing performance when bellows 1 and sleeve 4 are connected.

Example two

As shown in fig. 1-2, the utility model provides a straight bellows is with double-seal spacing sleeve connection structure compares in embodiment one, and in this embodiment, the distance at sealing washer 2 to 1 axial middle part of bellows is less than the distance at sealing ring 3 to 1 axial middle part of bellows, then sealing ring 3 gets into sleeve 4 earlier than sealing washer 2 in, and sealing ring 3 is earlier through draw-in groove 401, is gone into draw-in groove 401 by sealing washer 2 card again.

As shown in fig. 3, the sealing ring 3 includes a connecting plate portion and a plurality of connecting ring portions distributed in a stepwise manner, the connecting plate portion is located at a wave trough portion, the plurality of connecting ring portions are integrally connected to an outer peripheral surface of the connecting plate portion, diameters of the plurality of connecting ring portions gradually increase along a direction away from the sealing ring 2, and then, in a moving process of the sealing ring 3, the connecting ring portion with a larger diameter deforms toward the connecting ring portion with a smaller diameter, so that sealing between the sealing ring 3 and the sleeves 4 with different sizes is realized, and an application range is wider.

Furthermore, the sealing ring 3 can also adopt a circular rubber ring, and can also play an effective sealing effect.

EXAMPLE III

As shown in fig. 4, the utility model provides a straight bellows is with spacing sleeve connection structure of double seal, compare in embodiment one, in this embodiment, be provided with the opening 402 of U-shaped and form the spacing portion 41 of attacker on the sleeve 4, the spacing portion 41 of attacker has the interior convex part that can inlay card in the trough of wave department, and interior convex part can block in the trough of bellows 1 department to carry out further spacingly to bellows 1, improve the stability and the firm nature that bellows 1 and sleeve 4 are connected. The outer side surface of the handle limiting part 41 is provided with a plurality of grooves 411 side by side, so that the handle limiting part 41 is convenient to deform when the corrugated pipe 1 and the sleeve 4 are connected, and the inner convex part is abutted to the trough part after the corrugated pipe 1 and the sleeve 4 are connected.

Furthermore, a positioning boss can be arranged on the inner circumferential surface of the sleeve 4, the end part of the corrugated pipe 1 abuts against the positioning boss, and the positioning boss is used for positioning the two corrugated pipes 1 inserted from the two ends of the sleeve 4, so that the corrugated pipes 1 can be assembled regularly.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made without departing from the gist of the present invention within the scope of knowledge possessed by those skilled in the art.

Claims

1. A double-sealing limiting sleeve connecting structure for a straight corrugated pipe is characterized by comprising a corrugated pipe (1), a sealing ring (2), a sealing ring (3) and a sleeve (4);

the corrugated pipe (1), the sealing ring (2), the sealing ring (3) and the sleeve (4) are all of a rotary structure and are coaxially arranged, the corrugated pipe (1) is provided with a plurality of wave crest portions along the axial direction, wave trough portions are formed between adjacent wave crest portions, the sealing ring (2) and the sealing ring (3) are clamped and arranged at the two wave trough portions side by side, the sealing ring (2) and the sealing ring (3) are both tightly abutted against the inner peripheral surface of the sleeve (4), and the inner peripheral surface of the sleeve (4) is provided with a clamping groove (401) for the sealing ring (2) to be clamped in;

the distance from the sealing ring (2) to the axial middle part of the corrugated pipe (1) is less than the distance from the sealing ring (3) to the axial middle part of the corrugated pipe (1); the sealing ring (3) comprises a connecting plate part and a plurality of connecting ring parts distributed in a stepped manner, the connecting plate part is located at a wave trough part, the connecting ring parts are integrally connected to the outer peripheral surface of the connecting plate part, and the diameters of the connecting ring parts are gradually increased along the direction far away from the sealing ring (2).

2. The double-sealing limiting sleeve connecting structure for the straight corrugated pipe according to claim 1, wherein the sealing ring (2) is a rubber ring.

3. The double-seal limiting sleeve connecting structure for the straight corrugated pipe according to claim 1, wherein the sleeve (4) is provided with a U-shaped opening (402) and forms a buckle limiting portion (41), and the buckle limiting portion (41) has an inner convex portion capable of being engaged with the valley portion.

4. The double-sealing limiting sleeve connecting structure for the straight corrugated pipe according to claim 3, wherein a plurality of grooves (411) are arranged side by side on the outer side surface of the locking limiting part (41).