CN211667318U

CN211667318U - Pipe fitting capable of being connected in bidirectional clamping and pressing mode

Info

Publication number: CN211667318U
Application number: CN201921977657.8U
Authority: CN
Inventors: 孙志刚
Original assignee: Wuxi Zhongyang Metal Products Co ltd
Current assignee: Wuxi Zhongyang Metal Products Co ltd
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2020-10-13
Anticipated expiration: 2029-11-15

Abstract

The utility model discloses a pipe fitting that can two-way card pressure is connected, press the pipe fitting and connect the pipe fitting including the card, the tail end that the pipe fitting was pressed to the card is provided with the bellmouth, bellmouth department is provided with the recess, be connected with at least one sealing washer and anti-pulling ring in the recess, sealing washer and anti-pulling ring cup joint in the outer wall of connecting the pipe fitting, the card of recess both sides is pressed the pipe fitting lateral wall and is established along axis extension cover respectively on the outer wall of connecting the pipe fitting. A pipe fitting that can two-way card press to connect, the resistance to plucking ability is high.

Description

Pipe fitting capable of being connected in bidirectional clamping and pressing mode

Technical Field

The utility model relates to a connect the pipe fitting, especially relate to a pipe fitting that can two-way card pressure connection.

Background

A snap connection is a common way of connecting pipes. The clamping and pressing connection of the pipe fittings is realized by utilizing the effective rigidity of metal materials and the elastic compression ratio principle of sealing materials, and the pipe fittings are compressed into two hexagons and are comprehensively anti-locked by utilizing special clamping and pressing tools at the two sides of the sealing materials at the joint of the pipe fittings so as to ensure the pulling resistance and the rotation resistance between the pipe fittings. Meanwhile, the sealing material is compressed by the connecting pipe after clamping and pressing, so that the sealing of the pipe fitting is ensured. The existing clamping and pressing connecting pipe fitting realizes relative stretching and rotation by clamping and pressing between two connecting pipes, and when the pipe fitting is applied to a place with stronger stress, the pulling resistance of the pipe fitting needs to be improved.

Disclosure of Invention

The purpose of the invention is as follows: in order to overcome the defects existing in the prior art, the utility model provides a pipe fitting which can be connected by two-way clamping and pressing so as to improve the anti-pulling performance.

The technical scheme is as follows: in order to achieve the purpose, the utility model discloses a connecting pipe fitting capable of being clamped and pressed bidirectionally, which comprises a clamping and pressing pipe fitting and a connecting pipe fitting; the tail end of the clamping and pressing pipe fitting is provided with a socket, the socket is provided with a groove, the groove is internally connected with at least one sealing ring and an anti-pulling ring, the sealing ring and the anti-pulling ring are sleeved on the outer wall of the connecting pipe fitting, and the side walls of the clamping and pressing pipe fittings on the two sides of the groove are respectively sleeved on the outer wall of the connecting pipe fitting along the axis extension sleeve.

Further, the sealing rings are respectively arranged on two sides of the anti-pulling ring.

Further, the section of the anti-pulling ring is rectangular.

Furthermore, bulges are arranged on two end faces of the anti-pulling ring, and the sealing ring is pressed on the bulges.

Furthermore, the outer circular surface and the inner circular surface of the anti-pulling ring are both provided with flanges extending in the radial direction, the end surfaces of the flanges are arc-shaped, and the flanges are respectively pressed against the outer wall of the connecting pipe fitting and the inner wall of the clamping and pressing pipe fitting.

Further, the sealing ring is an O-shaped sealing ring or an oval sealing ring.

Furthermore, the clamping and pressing pipe fitting is a reducer pipe, and one end of the connecting pipe fitting is inserted into the large-diameter end of the clamping and pressing pipe fitting.

Has the advantages that: the utility model discloses a connecting pipe fitting capable of bidirectionally clamping and pressing, wherein a groove is arranged at one end of the clamping and pressing pipe fitting, a sealing ring and an anti-pulling ring are connected in the groove, the clamping and pressing pipe fitting can bidirectionally clamp and press, and the anti-pulling capacity is strong; the anti-pulling ring can deform along with the clamping and pressing pipe when the clamping and pressing pipe deforms, and the anti-pulling performance of the pipe is further improved.

Drawings

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

FIG. 2 is a schematic structural view of portion A of FIG. 1;

fig. 3 is a schematic structural diagram of a second embodiment of the present invention;

FIG. 4 is a schematic structural view of portion B of FIG. 3;

fig. 5 is a schematic structural diagram of a third embodiment of the present invention;

FIG. 6 is a schematic structural view of portion C of FIG. 5;

fig. 7 is a schematic structural diagram of a fourth embodiment of the present invention;

fig. 8 is a schematic structural view of a portion D in fig. 7.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

Example one

The connecting pipe fitting capable of being clamped and pressed bidirectionally shown in the attached drawings 1 to 2 comprises a clamping and pressing pipe fitting 1, a connecting pipe fitting 2, a sealing ring 5 and an anti-pulling ring 6. The clamping and pressing pipe fitting 1 is a reducing pipe, the connecting pipe fitting 2 is inserted into a large-diameter end of the clamping and pressing pipe fitting 1, and the reducing part of the clamping and pressing pipe fitting 2 can limit the axial direction of the connecting pipe fitting 2. The tail of the large-diameter end of the clamping and pressing pipe fitting 1 is provided with a bellmouth 3, a groove 4 is formed in the position of the bellmouth 3, and the side walls of the clamping and pressing pipe fittings 1 on the two sides of the groove 4 are respectively sleeved on the outer wall of the connecting pipe fitting 2 along the axis extension. The cross section of the groove 4 is approximately isosceles trapezoid. The sealing ring 5 is an O-shaped sealing ring or an elliptical sealing ring 5, the anti-pulling ring 6 is close to the tail of the large-diameter end of the clamping and pressing pipe fitting 1, and the sealing ring 5 and the top wall of the groove 4 or the outer wall of the connecting pipe fitting 2 are pressed to form sealing. The section of the anti-pulling ring 6 is rectangular, and the sealing ring 5 is also pressed against the side of the end face of the anti-pulling ring. The both sides of recess 4 all can carry out the card and press, and when the card pressed pipe fitting 1 by the card pressed pipe fitting, resistance to plucking ring 6 can warp thereupon in order to improve its resistance to plucking ability.

Example two

The connecting pipe fitting capable of being clamped and pressed bidirectionally shown in the attached drawings 3 to 4 is different from the first embodiment in that: two sealing rings in the groove 4 are arranged on two sides of the anti-pulling ring respectively, so that the sealing capability of the anti-pulling ring is greatly improved; and the two ends of the anti-pulling ring 6 are provided with bulges 7, and the sealing ring 5 is pressed against the bulges of the anti-pulling ring 6.

EXAMPLE III

The connecting pipe fitting capable of being clamped and pressed bidirectionally shown in the attached drawings 5 to 6 is different from the first embodiment in the cross-sectional shape of the anti-pulling ring. In this embodiment, the outer circumferential surface and the inner circumferential surface of the anti-pulling ring are both provided with flanges 8 extending in the radial direction, and the flanges 8 may be provided in plurality at intervals in the axial direction. The end face of the flange 8 is arc-shaped, and the flange 8 is respectively pressed on the outer wall of the connecting pipe fitting 2 and the inner wall of the clamping and pressing pipe fitting 1, namely the cross section of the anti-pulling ring is butterfly-shaped. This makes it possible to increase the resistance to plucking of the anti-plucking ring by reducing the contact area with the connecting tube.

Example four

Fig. 7 to 8 show a connecting pipe fitting capable of being clamped and pressed bidirectionally, which is different from the third embodiment in that two sealing rings are provided, and the sealing rings are disposed on two sides of a butterfly-shaped anti-pulling ring to improve the sealing capability thereof.

The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.

Claims

1. The utility model provides a pipe fitting that can two-way card press connection which characterized in that: comprises a clamping and pressing pipe fitting (1) and a connecting pipe fitting (2); the tail end of card pressure pipe fitting (1) is provided with bellmouth (3), bellmouth (3) department is provided with recess (4), be connected with at least one sealing washer (5) and resistance to plucking ring (6) in recess (4), sealing washer (5) and resistance to plucking ring (6) cup joint in the outer wall of connecting pipe fitting (2), the card of recess (4) both sides is pressed pipe fitting (1) lateral wall and is extended the cover along the axis respectively and is established connect on the outer wall of pipe fitting (2).

2. The bi-directional snap-fit pipe fitting of claim 1, wherein: the sealing rings (5) are respectively arranged on two sides of the anti-pulling ring (6).

3. The bi-directional snap-fit pipe fitting of claim 2, wherein: the section of the anti-pulling ring (6) is rectangular.

4. A bi-directional snap-fit connection pipe as claimed in claim 3, wherein: bulges (7) are arranged on two end faces of the anti-pulling ring (6), and the sealing ring (5) is pressed on the bulges (7).

5. The bi-directional snap-fit pipe fitting of claim 2, wherein: the outer circular surface and the inner circular surface of the anti-pulling ring (6) are both provided with flanges (8) extending in the radial direction, the end surfaces of the flanges (8) are arc-shaped, and the flanges (8) are respectively pressed against the outer wall of the connecting pipe fitting (2) and the inner wall of the clamping and pressing pipe fitting (1).

6. A bi-directional snap-connectable pipe according to any one of claims 1 to 5, wherein: the sealing ring (5) is an O-shaped sealing ring or an oval sealing ring.

7. A bi-directional snap-connectable pipe according to any one of claims 1 to 5, wherein: the clamping and pressing pipe fitting (1) is a reducer pipe, and one end of the connecting pipe fitting (2) is inserted into the large-diameter end of the clamping and pressing pipe fitting (1).