CN217683766U

CN217683766U - Leak protection type flange that gas tightness is good

Info

Publication number: CN217683766U
Application number: CN202221495816.2U
Authority: CN
Inventors: 付明明; 李红柱; 邹猛; 付义忠; 蔡王涛; 古建国; 王玉珍
Original assignee: Hubei Minghan Auto Parts Co ltd
Current assignee: Hubei Minghan Auto Parts Co ltd
Priority date: 2022-06-16
Filing date: 2022-06-16
Publication date: 2022-10-28
Anticipated expiration: 2032-06-16

Abstract

The utility model provides a leak protection type flange that gas tightness is good, including first ring flange, second ring flange, first ring flange is in the coplanar with second ring flange dish axis, the coaxial annular seat that is equipped with between first ring flange and the second ring flange, the annular seat surface is interrupted equidistant and is equipped with the ear seat, the ear seat is parallel with annular seat axis, ear seat fixed mounting is on the annular seat, the slip chamber has been seted up to the coaxial on the ear seat inner wall, the coaxial sliding connection of slip intracavity has the slip ring, the slip ring is kept away from the coaxial spring that is equipped with in one side of first ring flange, spring one end is connected with the slip ring. The utility model discloses when using, realized the double seal to exhaust duct, avoided receiving the sealing performance decline that wearing and tearing lead to because of sealed the pad, simple structure simultaneously, dismouting equipment maintenance work is very convenient, has higher suitability.

Description

Leak protection type flange that gas tightness is good

Technical Field

The utility model belongs to the technical field of the flange, especially indicate a leak protection type flange that gas tightness is good.

Background

The flange, also called flange plate or flange, is a part for connecting the shaft and the shaft, and can also be used for connecting pipe ends, the flange connection is convenient to use, can bear larger pressure, and is an important connection mode for pipeline construction. In the automobile industry field, the blast pipe flange is the important spare part of particulate filter among the automobile exhaust handles, and current blast pipe flange seal structure is comparatively simple, and after the long-time driving of car, not hard up condition can appear in the connection between the flange, and then causes the pipeline sealing performance to descend for exhaust leaks, the exhaust treatment effeciency descends, and this has led to the fact very big potential safety hazard. In order to solve the problems, a leakage-proof flange with good air tightness is provided.

SUMMERY OF THE UTILITY MODEL

For solving the not enough of above prior art, the utility model provides a leak protection type flange that gas tightness is good.

The technical scheme of the utility model is realized like this: the utility model provides a good leak protection type flange of gas tightness, includes first ring flange, second ring flange, first ring flange is in the coplanar with second ring flange axis, the coaxial annular seat that is equipped with between first ring flange and the second ring flange, the annular seat surface is interrupted the equidistant ear seat that is equipped with, ear seat is parallel with annular seat axis, ear seat fixed mounting is on the annular seat, the coaxial slip chamber of having seted up on the ear seat inner wall, the coaxial sliding connection of slip intracavity has the slip ring, the one side coaxial spring that is equipped with of first ring flange is kept away from to the slip ring, spring one end is connected with the slip ring, the spring other end is connected with the ear seat, the inside coaxial stud that is equipped with of slip ring, the coaxial spacing ring that is equipped with of stud surface, the spacing ring is located the one side that the second ring flange was kept away from to the slip ring, spacing ring fixed mounting is on the stud.

Preferably, the exhaust pipeline is coaxially and fixedly connected to one side of the first flange plate and one side of the second flange plate.

Preferably, cambered surface grooves are formed in the tops of two sides of the annular seat, a first sealing gasket is coaxially mounted on the inner wall of each cambered surface groove, cambered surface convex blocks corresponding to the cambered surface grooves are arranged on one side of each first flange plate and one side of each second flange plate, and the cambered surface convex blocks are located inside the cambered surface grooves.

Preferably, a second annular groove is coaxially formed in one side port of the first flange plate and one side port of the second flange plate, a first annular groove corresponding to the second annular groove is coaxially formed in both side ports of the annular seat, a second sealing gasket is coaxially arranged between the first annular groove and the second annular groove, and the second sealing gasket is respectively in contact with the first annular groove and the second annular groove in both sides.

Preferably, the stud bolts penetrate through the outer sides of the first flange plate and the second flange plate at two ends respectively and are coaxially and spirally connected with fastening nuts.

Compared with the prior art, the utility model discloses when using, through setting up first sealed pad, the sealed pad of second, the sealed effect of flange has effectively been strengthened, the emergence of the tail gas condition of leaking has been avoided, it supports the displacement of slip ring to first ring flange one side to recycle the spring of slip intracavity portion, the slip ring contacts with the spacing ring, the spacing ring passes through stud, fastening nut drives the displacement of second ring flange to first ring flange one side, make the cambered surface lug tightly extrude first sealed pad in the cambered surface recess, thereby realized the double sealing to exhaust duct, the sealing performance who has avoided receiving wearing and tearing to lead to because of sealed pad descends, while simple structure, the dismouting equipment maintenance work is very convenient, higher suitability has been had.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of a leak-proof flange with good air tightness according to the present invention;

FIG. 2 is a schematic view of a disassembled structure of a leak-proof flange with good air tightness, which is proposed by the present invention;

fig. 3 is a schematic view of the specific structure of the annular seat and the ear seat of the leak-proof flange with good air tightness.

In the figure: 1. a first flange plate; 2. a second flange plate; 3. an exhaust duct; 4. an annular seat; 5. an ear mount; 6. a stud bolt; 7. fastening a nut; 8. a sliding cavity; 9. a slip ring; 10. a spring; 11. a limiting ring; 12. a cambered surface groove; 13. a first gasket; 14. a first annular groove; 15. a second annular groove; 16. a second gasket; 17. and a cambered surface bump.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a leak protection type flange that gas tightness is good, including first ring flange 1, second ring flange 2, first ring flange 1 is in the coplanar with second ring flange 2 axis, it is coaxial between first ring flange 1 and the second ring flange 2 to be equipped with

annular seat

4, 4 outer surfaces of annular seat are interrupted the equidistant ear seat 5 that is equipped with, ear seat 5 is parallel with 4 axes of annular seat, ear seat 5 fixed mounting is on annular seat 4, the sliding chamber 8 has coaxially been seted up on the 5 inner walls of ear seat, coaxial sliding connection has a slip ring 9 in the sliding chamber 8, one side that first ring flange 1 was kept away from to slip ring 9 is coaxial to be equipped with spring 10, spring 10 one end is connected with slip ring 9, the spring 10 other end is connected with ear seat 5, the inside coaxial stud 6 that is equipped with of slip ring 9, the coaxial spacing ring 11 that is equipped with of stud 6 outer surface, spacing ring 11 is located one side that second ring flange 2 was kept away from to slip ring 9, spacing ring 11 fixed mounting is on stud 6, utilize spring 10 inside the slip ring 8 to support slip ring 9 to first ring flange 1 one side displacement of first ring flange, the spacing ring flange 9 contacts through the tail gas fastening bolt 7, the sealed displacement of first ring flange 12, the sealed displacement of first cambered surface of second ring flange 12 has been realized to the sealed pad.

Further, the exhaust pipeline 3 is fixedly connected to one side of the first flange plate 1 and one side of the second flange plate 2 in a coaxial mode, connection between the exhaust pipeline 3 is achieved through the first flange plate 1 and the second flange plate 2, and the exhaust pipeline 3 is used for conveying tail gas.

Further, cambered surface recess 12 has all been seted up at the top of 4 both sides of annular seat, coaxial arrangement has first sealed pad 13 on the cambered surface recess 12 inner wall, first ring flange 1 one side, 2 one sides of second ring flange are equipped with the cambered surface lug 17 corresponding with cambered surface recess 12, cambered surface lug 17 is located inside cambered surface recess 12, through setting up cambered surface recess 12, utilize first ring flange 1, second ring flange 2 drives cambered surface lug 17 and tightly extrudes first sealed pad 13 in cambered surface recess 12, effectively avoided receiving the sealing performance decline that wearing and tearing lead to because of first sealed pad 13, sealing effect has been improved.

Furthermore, a second annular groove 15 is coaxially formed in one side port of the first flange plate 1 and one side port of the second flange plate 2, first annular grooves 14 corresponding to the second annular grooves 15 are coaxially formed in two side ports of the annular seat 4, a second sealing gasket 16 is coaxially arranged between the first annular grooves 14 and the second annular grooves 15, the second sealing gasket 16 is respectively in contact with the first annular grooves 14 and the second annular grooves 15 on two sides, effective sealing of the first flange plate 1 and the second flange plate 2 is achieved through the first annular grooves 14 and the second sealing gasket 16 between the second annular grooves 15, and sealing effect is further improved.

Further, stud 6 runs through to the first ring flange 1 in both ends, the second ring flange 2 outside and coaxial screwed connection has fastening nut 7 respectively, through setting up fastening nut 7, stud 6, the assembly and disassembly between the first ring flange 1 of being convenient for, second ring flange 2, annular seat 4.

Specifically, the utility model discloses in use, at first the staff passes ear seat 5 with stud 6, pass first ring flange 1 respectively with stud 6 both ends after that, in the mounting hole on the second ring flange 2, realize first ring flange 1 through fastening nut 7, second ring flange 2, equipment between the ring receptacle 4, after the equipment is accomplished, under spring 10's elastic potential energy, slip ring 9 of 8 inside in sliding chamber offsets with spacing ring 11 on the stud 6, make stud 6 drive second ring flange 2 through fastening nut 7 to the displacement of 1 one side of first ring flange, make first sealed pad 13 tightly extrude in cambered surface recess 12, cooperate first ring channel 14 again, the sealed pad 16 of second between the second ring channel 15, thereby realized the double sealing to exhaust duct 3, avoided receiving the sealing performance decline that wearing and tearing lead to because of sealed the pad.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a leak protection type flange that gas tightness is good, includes first ring flange (1), second ring flange (2), a serial communication port, first ring flange (1) is in the coplanar with second ring flange (2) axis, the coaxial annular seat (4) that is equipped with between first ring flange (1) and second ring flange (2), annular seat (4) surface is interrupted the equidistant ear seat (5) that is equipped with, ear seat (5) are parallel with annular seat (4) axis, ear seat (5) fixed mounting is on annular seat (4), the coaxial slip chamber (8) of having seted up on ear seat (5) inner wall, coaxial sliding connection has slip ring (9) in slip chamber (8), one side coaxial spring (10) that first ring flange (1) was kept away from in slip ring (9), spring (10) one end is connected with slip ring (9), the spring (10) other end is connected with ear seat (5), the inside stud (6) that is equipped with of slip ring (9), coaxial bolt (6) surface is equipped with, and the stud (11) is located on one side of limit ring flange (11) the stud (11) install on limit ring (11) the stud (6).

2. Leak-proof flange with good air tightness according to claim 1, characterized in that the exhaust duct (3) is coaxially and fixedly connected to one side of the first flange (1) and one side of the second flange (2).

3. The leak-proof flange with good air tightness according to claim 1, wherein arc-shaped grooves (12) are formed in the tops of the two sides of the annular seat (4), a first sealing gasket (13) is coaxially mounted on the inner wall of each arc-shaped groove (12), arc-shaped protrusions (17) corresponding to the arc-shaped grooves (12) are arranged on one side of the first flange (1) and one side of the second flange (2), and the arc-shaped protrusions (17) are located inside the arc-shaped grooves (12).

4. The leak-proof flange with good air tightness according to claim 1, wherein a second annular groove (15) is coaxially formed at one side port of the first flange (1) and one side port of the second flange (2), a first annular groove (14) corresponding to the second annular groove (15) is coaxially formed at both side ports of the annular seat (4), a second sealing gasket (16) is coaxially arranged between the first annular groove (14) and the second annular groove (15), and the second sealing gasket (16) is respectively in contact with the first annular groove (14) and the second annular groove (15) at both sides.

5. A leak-proof flange with good air tightness according to claim 1, characterized in that the stud bolts (6) respectively penetrate through the outer sides of the first flange plate (1) and the second flange plate (2) at the two ends and are coaxially and spirally connected with fastening nuts (7).