CN218542613U

CN218542613U - Vacuum pump exhaust tube structure

Info

Publication number: CN218542613U
Application number: CN202222886579.9U
Authority: CN
Inventors: 郭振
Original assignee: Taizhou Asia Pacific Polymer Material Technology Co ltd
Current assignee: Taizhou Asia Pacific Polymer Material Technology Co ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-02-28
Anticipated expiration: 2032-10-31

Abstract

The utility model discloses a vacuum pump chimney structure, including the chimney shell, the bottom fixedly connected with of chimney shell advances the tobacco pipe, and the top of chimney shell is equipped with the blind flange, and the top fixedly connected with of blind flange discharges fume the pipe, the bottom fixedly connected with clamping ring of blind flange, the top of chimney shell is equipped with first annular groove, and the joint has first sealing washer in the first annular groove, clamping ring and first sealing washer contact, and the top of first sealing washer is equipped with the annular indent, and the both sides fixedly connected with slope ring at first sealing washer top, the bottom of advancing the tobacco pipe is equipped with the second annular groove, and the joint has the second sealing washer in the second annular groove. The utility model discloses a setting up of being equipped with the blind flange on the chimney shell can be convenient for dismantle chimney shell and blind flange to be convenient for to the change of filter core, and then save the cost of changing.

Description

Vacuum pump exhaust tube structure

Technical Field

The utility model relates to a vacuum pump chimney technical field especially relates to a vacuum pump chimney structure.

Background

The vacuum pump chimney is mainly applied to the oil blanket rotary-vane vacuum pump, is applicable to and uses vacuum pump oil as the medium to pump out gaseous equipment that reaches the vacuum, and this kind of oil blanket rotary-vane vacuum pump of installing vacuum chimney additional has the effect that the exhaust gas is clean, non-staining operational environment, is fit for factory building, indoor use etc. in order to guarantee the leakproofness of vacuum pump enclosure, and both ends all weld extremely about the chimney, and unable dismantlement consequently leads to its practicality relatively poor.

At present, most of the existing vacuum pump smoke exhaust tubes have the following defects: most structure as an organic whole can't dismantle, can not in time change the filter core, and some detachable vacuum pump exhaust pipes on the market are sealed relatively poor in effect, lead to exhaust pipe gas leakage oil leak, influence exhaust pipe life.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a vacuum pump smoke exhaust tube structure.

In order to realize the purpose, the utility model adopts the following technical scheme:

the utility model provides a vacuum pump chimney structure, includes the chimney shell, the bottom fixedly connected with of chimney shell advances the tobacco pipe, and the top of chimney shell is equipped with the blind flange, and the top fixedly connected with of blind flange discharges fume the pipe, and the bottom fixedly connected with clamping ring of blind flange, the top of chimney shell is equipped with first annular groove, and the joint has first sealing washer in the first annular groove, and the clamping ring contacts with first sealing washer, and the top of first sealing washer is equipped with the annular indent, and the both sides fixedly connected with slope ring at first sealing washer top, the bottom of advancing the tobacco pipe is equipped with second annular groove, and the joint has the second sealing washer in the second annular groove.

Furthermore, the bottom end of the smoke inlet pipe is fixedly connected with a threaded connector.

Furthermore, the bottom of the flange cover is fixedly connected with an extension clamping pipe.

Furthermore, the top end of the smoke exhaust pipe is fixedly connected with a pagoda joint.

Furthermore, a filter element is arranged in the smoke exhaust tube shell and is clamped with the pagoda joint.

Furthermore, a plurality of mounting holes are formed in the top of the smoke exhaust cylinder shell and the top of the flange cover.

The beneficial effects of the utility model are that:

1. the flange cover is arranged on the exhaust funnel shell, so that the exhaust funnel shell and the flange cover can be conveniently detached, the filter element can be conveniently replaced, and the replacement cost is saved.

2. The arrangement of the annular groove, the first sealing ring, the annular pressure groove and the slope ring can seal the space between the exhaust funnel shell and the flange cover, so that the exhaust funnel shell is prevented from leaking gas and oil, and the service life of the exhaust funnel shell is prolonged.

3. The flexible pipe is connected with the smoke exhaust pipe through the pagoda joint, so that the flexible pipe is prevented from falling off, and the sealing performance is good.

Drawings

FIG. 1 is a schematic perspective view of a vacuum pump smoke exhaust tube structure according to the present invention;

FIG. 2 is a schematic view of a cross-sectional structure of a vacuum pump smoke exhaust tube according to the present invention;

FIG. 3 is a schematic view of an explosion structure of a vacuum pump smoke exhaust tube structure provided by the present invention;

fig. 4 is the schematic view of the sectional structure of the first sealing ring of the vacuum pump smoke discharging tube structure provided by the utility model.

In the figure: 1. a chimney housing; 2. a smoke inlet pipe; 3. a threaded connector; 4. a smoke exhaust pipe; 5. a flange cover; 6. a first annular groove; 7. a first seal ring; 701. annular pressure groove; 702. a slope ring; 8. pressing a ring; 9. extending the clamping pipe; 10. a pagoda joint; 11. mounting holes; 12. a filter element; 13. a second annular groove; 14. and a second seal ring.

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.

Referring to fig. 1-4, a vacuum pump exhaust pipe structure comprises an exhaust pipe casing 1, a smoke inlet pipe 2 is welded at the bottom of the exhaust pipe casing 1, a flange cover 5 is arranged at the top of the exhaust pipe casing 1, an exhaust pipe 4 is integrally formed at the top of the flange cover 5, a press ring 8 is integrally formed at the bottom of the flange cover 5, a first annular groove 6 is arranged at the top of the exhaust pipe casing 1, a first seal ring 7 is clamped in the first annular groove 6, the press ring 8 is in contact with the first seal ring 7, the flange cover 5 and the exhaust pipe casing 1 are sealed by pressing the press ring 8 on the first seal ring 7, so that the smoke inlet pipe casing 1 is prevented from leaking air and leaking oil, the service life of the exhaust pipe casing 1 is prolonged, an annular press groove 701 is arranged at the top of the first seal ring 7, a slope ring 702 is integrally formed at two sides of the top of the first seal ring 7, a second annular groove 13 is arranged at the bottom of the smoke inlet pipe 2, a second seal ring 14 is clamped in the second annular groove 13, so as to improve the sealing performance of the connection between the smoke inlet pipe 2 and the vacuum pump.

The bottom integrated into one piece that advances tobacco pipe 2 has threaded connection head 3, will advance tobacco pipe 2 and vacuum pump connection through threaded connection head 3, the bottom integrated into one piece of blind flange 5 has extension card pipe 9, the top integrated into one piece of tub 4 of discharging fume has pagoda joint 10, be equipped with filter core 12 in the chimney shell 1 of discharging fume, extension card pipe 9 and filter core 12 joint, thereby prevent rocking of filter core 12, filter core 12 and pagoda joint 10 joint, connect hose and tub 4 of discharging fume through pagoda joint 10, thereby prevent droing of hose, the top of chimney shell 1 and the top of blind flange 5 of discharging fume all are equipped with a plurality of mounting holes 11.

The working principle of the embodiment is as follows: when the smoke exhaust pipe is used, firstly, the smoke inlet pipe 2 is connected with a vacuum pump through the threaded connector 3, and is clamped with the second annular groove 13 through the second sealing ring 14, so that the sealing performance of connection between the smoke inlet pipe 2 and the vacuum pump is improved, then the filter element 12 is placed into the smoke exhaust pipe shell 1, then bolts penetrate through the mounting holes 11 to fix the flange cover 5 on the smoke exhaust pipe shell 1, meanwhile, the extension clamping pipe 9 is clamped with the filter element 12, so that the filter element 12 is prevented from shaking, the flange cover 5 and the smoke exhaust pipe shell 1 are sealed by pressing the first sealing ring 7 through the pressing ring 8, so that the smoke exhaust pipe shell 1 is prevented from air leakage and oil leakage, the annular pressing groove 701 and the slope ring 702 are better designed to seal, then, the hose is connected with the smoke exhaust pipe 4 through the pagoda connector 10, so that the hose is prevented from falling off, and the sealing performance is better.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a vacuum pump chimney structure, includes chimney shell (1), its characterized in that, the bottom fixedly connected with of chimney shell (1) advances tobacco pipe (2), and the top of chimney shell (1) is equipped with blind flange (5), and the top fixedly connected with of blind flange (5) discharges fume tub (4), and the bottom fixedly connected with clamping ring (8) of blind flange (5), the top of chimney shell (1) is equipped with first annular groove (6), and the joint has first sealing washer (7) in first annular groove (6), and clamping ring (8) and first sealing washer (7) contact, and the top of first sealing washer (7) is equipped with annular indent (701), the both sides fixedly connected with slope ring (702) at first sealing washer (7) top, the bottom of advancing tobacco pipe (2) is equipped with second annular groove (13), and the joint has second sealing washer (14) in second annular groove (13).

2. A vacuum pump smoke exhaust tube structure according to claim 1, wherein the bottom end of the smoke inlet tube (2) is fixedly connected with a threaded connector (3).

3. A vacuum pump chimney structure according to claim 1, characterized in that the bottom of the flange cover (5) is fixedly connected with an extension clamp pipe (9).

4. A vacuum pump smoke exhaust tube structure according to claim 1, wherein the top end of the smoke exhaust tube (4) is fixedly connected with a pagoda joint (10).

5. A vacuum pump chimney structure according to claim 4, characterized in that a filter element (12) is arranged in the chimney casing (1), and the filter element (12) is clamped with the pagoda joint (10).

6. A vacuum pump chimney structure according to claim 1, characterized in that the top of the chimney housing (1) and the top of the flange cover (5) are provided with a plurality of mounting holes (11).