CN209818957U - Pipeline connecting device - Google Patents

Abstract

The utility model discloses a pipeline connecting device, including shell body and sealing element, the shell body includes first tile type body and second tile type body, and the both sides of first tile type body and second tile type body are provided with the locking ear respectively, and the inside wall middle part of first tile type body and second tile type body is equipped with the semi-annular mounting groove that is used for installing sealing element respectively, the locking ear of first tile type body with be equipped with the gasket between the locking ear of second tile type body, the inboard profile of gasket with the inboard profile looks adaptation of locking ear, just the inboard intermediate position of gasket with semi-annular mounting groove looks adaptation. The utility model discloses a gasket has compensatied the clearance that exists between the locking ear of the first tile type body and the second tile type body, avoids sealing element to outwards expand along this clearance, can form effectual protection to sealing element.

Description

Pipeline connecting device

Technical Field

The utility model relates to a compressed air's pipeline system, more specifically say, it relates to a pipe connection device.

Background

There are many pipe joints for connecting compressed air pipes, and some improvements are made to the structure of the pipe joint according to production requirements. At present, chinese patent with publication number CN205534714U discloses a shell body of pipe joint, this shell body comprises first tile type body and second tile type body, it is convenient for by the quick male clearance of connecting pipe to predetermine between first tile type body and the second tile type body, the both sides of first tile type body and second tile type body are provided with the locking ear respectively, the locking ear is equipped with the locking member who is used for assembling first tile type body and second tile type body, the inside wall middle part of first tile type body and second tile type body is equipped with the semi-annular mounting groove that is used for installing sealing element respectively, first tile type body and second tile type body are the circular arc face of diameter and connected pipe external diameter looks adaptation respectively in the both sides of semi-annular mounting groove, the circular arc face is the holding surface of connected pipe, this utility model's connecting pipe has increased the rigidity of product. However, the pipe joint still has some defects, for example, a gap exists between the locking lug part of the first tile body and the locking lug part of the second tile body, the gap is an incomplete sealing ring structure, and the function of the gap is as follows: on one hand, the connected pipe can be conveniently and rapidly inserted into the pipe joint; on the other hand can guarantee to press from both sides tightly by the connecting pipe, when there is not the clearance between the locking ear of first tile body and the locking ear of second tile body, the locking ear of first tile body and the laminating of the locking ear of second tile body promptly, if the ring diameter that the semi-annular mounting groove of first tile body and the semi-annular mounting groove of second tile body constitute is greater than by the diameter of connecting pipe, results in this coupling can not press from both sides tightly by the connecting pipe. When fluid flows in the connecting pipe, pressure is generated, the sealing element is stressed to expand outwards along the gap, the service life of the sealing element is seriously influenced, and the sealing element needs to be replaced periodically during use. In addition, the locking lug part of the outer shell is locked by the bolt, when the locking lug part is used, the bolt is stressed greatly, and the locking lug part is formed by stamping a steel plate at present and is not strong enough.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pipeline connecting device, the device's gasket can prevent that the sealing washer atress from outwards expanding along the clearance to can protect sealing element.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a pipeline connecting device, includes shell body and sealing element, and the shell body includes first tile type body and second tile type body, and the both sides of first tile type body and second tile type body are provided with the locking ear respectively, and the inside wall middle part of first tile type body and second tile type body is equipped with the semi-annular mounting groove that is used for installing sealing element respectively, the locking ear of first tile type body with be equipped with the gasket between the locking ear of second tile type body, the inboard profile of gasket with the inboard profile looks adaptation of locking ear, just the inboard intermediate position of gasket with semi-annular mounting groove looks adaptation. Like this, this coupling is when connecting the pipe, there is the clearance between the locking ear of the first tile type body and the locking ear of the second tile type body, produce pressure when fluid flows in the connecting pipe, sealing element receives this pressure along the outside inflation in clearance, gasket and first tile type body, the complete ring structure of second tile type body constitution, the clearance that exists has compensatied between the locking ear of the first tile type body and the locking ear of the second tile type body, make this clearance shelter from, sealed effect has been ensured, avoid sealing element along the outside inflation in this clearance, can form effectual protection to sealing element, and then extension sealing element's life.

Preferably, the locking lug is provided with a reinforcing block matched with the locking lug, and the reinforcing block is formed by flanging the locking lug outwards and welding the locking lug with the outer side wall of the semi-annular mounting groove. The reinforcing block can increase the intensity of locking ear, when the bolt assembly, reduces the damage to locking ear.

Preferably, the middle position of the inner side of the gasket extends outwards along the direction perpendicular to the gasket. Like this, the locking ear on the tile type body is obtained by the punching press, and the R angle of bending between the inside wall of semi-annular mounting groove and the locking ear is great, leads to having the gap between locking ear and the gasket, and the arch can compensate the existence in this gap to can avoid sealing element along the outside inflation in gap.

Preferably, the outer side of the projection is pre-curved inwardly. Thus, the outer side surface of the pre-bending shape can be tightly attached to the semi-annular mounting groove.

Preferably, the inner side surface of the protrusion is a plane. Thus, the planar inner side face and the semi-annular mounting grooves of the first tile-shaped body and the second tile-shaped body can form a complete circular ring structure.

Preferably, the gasket is made of reinforced nylon. Thus, the gasket made of the reinforced nylon material has high mechanical strength.

To sum up, the utility model discloses following beneficial effect has:

1. the gasket of the utility model makes up the gap between the locking ear part of the first tile-shaped body and the locking ear part of the second tile-shaped body, thereby avoiding the sealing element from expanding outwards along the gap and effectively protecting the sealing element;

2. the utility model discloses a be equipped with the boss that constitutes by the outside turn-ups welding of locking ear on the locking ear, the boss can increase the intensity of locking ear, and when the bolt assembly, the reduction is to the damage of locking ear.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

fig. 3 is a schematic cross-sectional structure view of a first tile-shaped body of the present invention;

fig. 4 is a bottom view of the present invention;

fig. 5 is a schematic structural view of a first tile body of the present invention;

FIG. 6 is a schematic view of the first tile-shaped body of the present invention engaged with a gasket;

fig. 7 is a schematic structural view of the first tile-shaped body, the second tile-shaped body and the gasket of the present invention;

fig. 8 is a schematic structural view of the gasket of the present invention;

fig. 9 is a schematic structural view of another view angle of the gasket according to the present invention;

fig. 10 is a schematic view of the structure of the sealing member.

Reference numerals: 1. a first tile shaped body; 2. a second tile body; 3. a gap; 4. locking the lug parts; 5. a semi-annular mounting groove; 6. a sealing element; 7. a connected pipe; 8. a circular arc surface; 9. a semi-annular groove; 10. an annular projection; 11. a reinforcing block; 12. a first groove; 13. a first semi-annular groove; 14. a gasket; 15. a second groove; 16. a second semi-annular groove; 17. a protrusion; 18. an annular body; 19. a seal ring; 20. a first annular chamfer; 21. an annular sealing lip; 22. a limit convex ring; 23. a second annular chamfer; 24. a third annular ramp.

Detailed Description

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

The embodiment discloses a pipeline connecting device, as shown in fig. 1 and 2, the connecting device comprises an outer shell and a sealing element 6, the outer shell comprises a first tile-shaped body 1 and a second tile-shaped body 2, a gap 3 is arranged between the first tile-shaped body 1 and the second tile-shaped body 2, two sides of the first tile-shaped body 1 and the second tile-shaped body 2 are respectively provided with a locking lug part 4, the locking lug parts 4 are provided with a locking component used for folding the first tile-shaped body 1 and the second tile-shaped body 2, and the locking component is a nut and a bolt.

As shown in fig. 2 and 3, the middle parts of the inner side walls of the first tile-shaped body 1 and the second tile-shaped body 2 are respectively provided with a semi-annular mounting groove 5, the sealing element 6 is arranged in the semi-annular mounting groove 5 in a matching manner, and the sealing element 6 is made of rubber or elastic plastic. As shown in fig. 3, the first tile-shaped body 1 and the second tile-shaped body 2 are respectively provided with an arc-shaped surface 8 with a diameter matched with the outer diameter of the connected pipe 7 at two sides of the semi-annular mounting groove 5, and the arc-shaped surface 8 is used as a supporting surface of the connected pipe 7. As shown in fig. 1 and 3, a semi-annular groove 9 is formed on the circular arc surface 8 along the circumferential direction, and the semi-annular groove 9 is matched with an annular protrusion 10 on the connected pipe 7. As shown in fig. 4 and 5, a reinforcing block 11 adapted to the locking lug 4 is arranged on the locking lug 4, the reinforcing block 11 is formed by welding the locking lug 4 to an outward flange, the side edge of the reinforcing block 11 close to the semi-annular mounting groove 5 is welded to the outer side wall of the semi-annular mounting groove 5, a first groove 12 adapted to the outer side wall of the semi-annular mounting groove 5 is arranged in the middle of the reinforcing block 11, and first semi-annular grooves 13 adapted to the outer side wall of the semi-annular groove 9 are arranged on two sides of the reinforcing block 11 located on the first groove 12. The reinforcing block 11 can increase the strength of the locking lug 4 and reduce damage to the locking lug 4 during bolt assembly.

As shown in fig. 6, 7 and 8, a gasket 14 is provided between the locking lug parts 4 of the first and second tile type bodies 1 and 2, the inner side contour of the gasket 14 is matched with the inner side contour of the locking lug part 4, the inner middle position of the gasket 14 is matched with the semi-annular mounting groove 5, the inner middle position of the gasket 14 is provided with a second groove 15 matched with the semi-annular mounting groove 5, the two sides of the second groove 15 of the gasket 14 are provided with second semi-annular grooves 16 matched with the semi-annular grooves 9, so that when the pipe joint is connected, a gap 3 exists between the locking lug parts 4 of the first and second tile type bodies 1 and 2, when fluid flows in the connecting pipe, pressure is generated, the sealing element 6 expands outwards along the gap 3 by the pressure, and the gasket 14 forms a complete annular structure with the first and second tile type bodies 1 and 2, the gap 3 between the locking lug part 4 of the first tile-shaped body 1 and the locking lug part 4 of the second tile-shaped body 2 is compensated, so that the gap 3 is shielded, the sealing effect is ensured, the sealing element 6 is prevented from expanding outwards along the gap 3, the sealing element 6 can be effectively protected, and the service life of the sealing element 6 is prolonged.

As shown in fig. 7, 8 and 9, a protrusion 17 extends from the middle position of the inner side of the gasket 14 in the direction perpendicular to the gasket 14, the inner side surface of the protrusion 17 is a plane, and the outer side surface is pre-bent inwards, so that the locking lug part 4 on the tile-shaped body is obtained by stamping, the bending R angle between the inner side wall of the semi-annular mounting groove 5 and the locking lug part 4 is large, which results in a gap between the locking lug part 4 and the gasket 14, the protrusion 17 can compensate the gap, thereby preventing the sealing element 6 from expanding outwards along the gap, the planar inner side surface can form a complete circular ring structure with the semi-annular mounting grooves 5 of the first tile-shaped body 1 and the second tile-shaped body 2, and the pre-bent outer side surface can be tightly attached to the semi-annular mounting groove 5. The gasket 14 is formed by injection molding through a plastic mold, and is made of reinforced nylon, and the gasket 14 made of the reinforced nylon has high mechanical strength.

As shown in fig. 10, the sealing element 6 includes an annular body 18 and two sealing rings 19, an outer diameter of the annular body 18 is adapted to a diameter of the semi-annular mounting groove 5, the two sealing rings 19 are disposed at two ends of the annular body 18, the sealing rings 19 are turned inside out to form a first annular inclined surface 20, the first annular inclined surface 20 is formed by inward convergence from an outer side of the sealing rings 19 to a flare shape, an inner end of the first annular inclined surface 20 forms an annular sealing lip 21, and a diameter of the annular sealing lip 21 is smaller than or equal to an outer diameter of the connected pipe 7. A limiting convex ring 22 is arranged in the middle of the inner ring of the annular body 18, and the inner diameter of the limiting convex ring 22 is larger than the outer diameter of the connected pipe 7. As shown in fig. 3, two sides of the semi-annular mounting groove 5 are respectively provided with a second annular inclined surface 23, and the outer sides of two ends of the annular body 18 are respectively provided with a third annular inclined surface 24 matched with the second annular inclined surface 23. After the first tile-shaped body 1 and the second tile-shaped body 2 are folded, the semi-annular installation groove 5 presses the annular body 18 to enable the first annular inclined surface 20 to partially or completely fit and seal the outer wall of the connected pipe 7, and the sealing element 6 is enabled to seal the connected pipe 7 inserted at two ends of the sealing element 6.

The directions given in the present embodiment are merely for convenience of describing positional relationships between the respective members and the relationship of fitting with each other. It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (6)

1. The utility model provides a pipeline connecting device, includes shell body and sealing element (6), and the shell body includes first tile type body (1) and second tile type body (2), and the both sides of first tile type body (1) and second tile type body (2) are provided with locking ear (4) respectively, and the inside wall middle part of first tile type body (1) and second tile type body (2) is equipped with semi-annular mounting groove (5) that are used for installing sealing element (6) respectively, characterized by: locking ear (4) of first tile type body (1) with be equipped with gasket (14) between locking ear (4) of second tile type body (2), the inboard profile of gasket (14) with the inboard profile looks adaptation of locking ear (4), just the inboard intermediate position of gasket (14) with semi-annular mounting groove (5) looks adaptation.

2. The pipe coupling according to claim 1, wherein: the locking lug part (4) is provided with a reinforcing block (11) matched with the locking lug part (4), and the reinforcing block (11) is formed by welding the locking lug part (4) to an outward flanging and the outer side wall of the semi-annular mounting groove (5).

3. The pipe coupling according to claim 1, wherein: the middle position of the inner side of the gasket (14) extends outwards along the direction vertical to the gasket (14) to form a bulge (17).

4. A pipe coupling according to claim 3, wherein: the outer side surface of the bulge (17) is pre-bent inwards.

5. The pipe coupling according to claim 4, wherein: the inner side surface of the bulge (17) is a plane.

6. A pipe connection according to any one of claims 1 to 4, wherein: the gasket (14) is made of reinforced nylon.