CN211343397U

CN211343397U - Vacuum pump capable of preventing pressure release

Info

Publication number: CN211343397U
Application number: CN201922174490.8U
Authority: CN
Inventors: 李菊连
Original assignee: Shanghai Fenger Culture Communication Co ltd
Current assignee: Shanghai Fenger Culture Communication Co ltd
Priority date: 2019-12-07
Filing date: 2019-12-07
Publication date: 2020-08-25
Anticipated expiration: 2029-12-07

Abstract

The utility model discloses a prevent vacuum pump of pressure release belongs to vacuum pump technical field. The utility model provides a prevent vacuum pump of pressure release, including the impeller, the impeller includes the wheel seat, wheel seat front and back end symmetry is equipped with two apron, it is annular equidistant and is equipped with a plurality of blades to be between two apron, a plurality of spacing grooves have been seted up to the equal symmetry of blade front and back end, the spacing inslot is equipped with a plurality of bolt subassemblies, the apron outside is equipped with the base plate, it is annular equidistant and is equipped with a plurality of screw rods to be between two base plates, the screw rod runs through the base plate, apron and wheel seat, and the equal threaded connection of screw rod both sides tip is used for the base plate, apron and wheel seat reciprocal anchorage. The utility model discloses an impeller structure improves in the liquid ring pump to current pressure release that prevents for when impeller and pump body inner wall and end cover inner wall friction damage, can solve through the comparatively serious apron of change friction, thereby avoided the mode of direct change impeller among the prior art, reduced the wasting of resources.

Description

Vacuum pump capable of preventing pressure release

Technical Field

The utility model relates to a vacuum pump technical field, more specifically say, relate to a prevent vacuum pump of pressure release.

Background

The liquid ring pump belongs to a rough vacuum pump, and still has a large market in the fields of petroleum, chemical engineering, electric power, light spinning, paper making, medicine and the like in China. Most of liquid ring pumps are castings, so that the machining requirements are not high, and the liquid ring pumps belong to labor-intensive products, but in the existing liquid ring pumps for preventing pressure release, gaps among the impellers, the pump body and the end cover are larger and larger due to long-time friction between the impellers and the inner wall of the pump body and the inner wall of the end cover, so that the pressure loss of a vacuum pump is increased, the conventional operation for repairing the pressure loss is to directly replace the impellers, but resources are wasted, and therefore, the vacuum pump for preventing pressure release is provided.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

An object of the utility model is to provide a prevent vacuum pump of pressure release to solve the problem that proposes in the above-mentioned background art.

2. Technical scheme

The utility model provides a prevent vacuum pump of pressure release, includes the impeller, the impeller includes the wheel seat, wheel seat front and back end symmetry is equipped with two apron, two it is equidistant a plurality of blades that are annular between the apron, a plurality of spacing grooves have been seted up to blade front and back end equal symmetry, the spacing inslot is equipped with a plurality of bolt subassemblies, the apron outside is equipped with the base plate, two it is equidistant a plurality of screw rods to be annular between the base plate, the screw rod runs through base plate, apron and wheel seat, just the equal threaded connection of screw rod both sides tip has the nut that is used for fixing base plate, apron and wheel seat each other or loosens each other.

Preferably, the outer wall of the circumference of the wheel seat is annular and provided with a plurality of slots at equal intervals, and the inner sides of the slots are in splicing fit with the inner ends of the blades.

Preferably, a plurality of pin grooves are formed in the inner wall of the cover plate in a one-to-one correspondence mode relative to the positions of the plurality of plug pin assemblies, and the inner sides of the pin grooves are in plug-in fit with the outer sides of the end portions of the plug pin assemblies.

Preferably, the caliber of the outer end of the limit groove is provided with an internal thread.

Preferably, the bolt subassembly includes the bolt with cotter way grafting complex, the bolt is inside hollow cylinder structure, just the embedded spring that is equipped with of bolt, bolt inner still is equipped with the external screw thread, external screw thread and internal thread screw-thread fit.

Preferably, a gasket is further sleeved between the nut and the base plate.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

the utility model discloses an impeller structure improves in the liquid ring pump to current pressure release that prevents for when impeller and pump body inner wall and end cover inner wall friction damage, can solve through the comparatively serious apron of change friction, thereby avoided the mode of direct change impeller among the prior art, reduced the wasting of resources.

Drawings

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

fig. 2 is a schematic diagram of the overall structure of the present invention;

FIG. 3 is a schematic view of a part of the structure of the present invention;

fig. 4 is an enlarged schematic view of a part of the structure of the present invention.

The reference numbers in the figures illustrate: wheel seat 1, apron 2, blade 3, spacing groove 301, bolt subassembly 4, base plate 5, screw rod 6, nut 7, slot 101, cotter way 201, internal thread 302, bolt 401, spring 402, external screw thread 403, gasket 8.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, the present invention provides a technical solution:

the utility model provides a prevent vacuum pump of pressure release, including

wheel seat

1, 1 front and back end symmetry of wheel seat is equipped with two apron 2, it is annular equidistant and is equipped with a plurality of blades 3 to be between two apron 2, a plurality of spacing grooves 301 have been seted up to 3 front and back end equal symmetries of blade, be equipped with a plurality of bolt subassemblies 4 in the

spacing groove

301, 2 outsides of apron are equipped with base plate 5, it is annular equidistant and is equipped with a plurality of screw rods 6 to be between two base plates 5, screw rod 6 runs through base plate 5, apron 2 and wheel seat 1, and the equal threaded connection of 6 both sides tip of screw rod is used for base plate 5,

apron

2 and 1 reciprocal anchorage of wheel seat or the nut 7 that.

The outer wall of the circumference of the wheel seat 1 is provided with a plurality of slots 101 at equal intervals in an annular shape, and the inner sides of the slots 101 are in inserted connection and matching with the inner ends of the blades 3.

A plurality of pin grooves 201 are formed in the inner wall of the cover plate 2 in a one-to-one correspondence mode relative to the positions of the plurality of pin components 4, and the inner sides of the pin grooves 201 are in insertion fit with the outer sides of the end portions of the pin components 4.

The outer end caliber of the limit groove 301 is provided with an internal thread 302.

The plug pin assembly 4 comprises a plug pin 401 in plug fit with the pin slot 201, the plug pin 401 is of a hollow cylindrical structure, a spring 402 is embedded in the plug pin 401, an external thread 403 is further arranged at the inner end of the plug pin 401, and the external thread 403 is in threaded fit with the internal thread 302.

A gasket 8 is further sleeved between the nut 7 and the substrate 5.

The installation principle is as follows: the external thread 403 at the inner end of the bolt 401 is in threaded connection with the limiting groove 301 on the blade 3, so that the bolt 401 is screwed into the limiting groove 301, due to the fact that only one end thread is arranged, the bolt 401 can have a telescopic function under the action of the restoring force of the spring 402, the blade 3 after the bolt assembly 4 is installed is inserted and connected onto the wheel seat 1 in sequence, the screw 6 penetrates through the wheel seat 1, the cover plate 2 and the base plate 5 are sleeved at two ends of the screw 6 respectively, at the moment, the outer end of the bolt 401 is in inserted and connected with the pin groove 201 on the inner wall of the cover plate 2, and finally the base plate 5, the cover plate 2 and the wheel seat 1 are fixed with one another through the nut.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A vacuum pump for preventing pressure release comprises an impeller, and is characterized in that: the impeller is including taking turns seat (1), wheel seat (1) front and back end symmetry is equipped with two apron (2), two it is equidistant a plurality of blades (3) to be annular between apron (2), a plurality of spacing grooves (301) have been seted up to blade (3) front and back end symmetry, be equipped with a plurality of bolt subassemblies (4) in spacing groove (301), apron (2) outside is equipped with base plate (5), two it is equidistant a plurality of screw rods (6) to be annular between base plate (5), apron (2) and wheel seat (1) are run through in screw rod (6), just screw rod (6) both sides equal threaded connection has nut (7) that are used for base plate (5), apron (2) and wheel seat (1) reciprocal anchorage or loosen each other.

2. A vacuum pump for preventing depressurization as set forth in claim 1, wherein: the outer wall of the circumference of the wheel seat (1) is annular and is provided with a plurality of slots (101) at equal intervals, and the inner sides of the slots (101) are in splicing fit with the inner ends of the blades (3).

3. A vacuum pump for preventing depressurization as set forth in claim 1, wherein: a plurality of pin grooves (201) are formed in the inner wall of the cover plate (2) in a one-to-one correspondence mode relative to the positions of the plurality of pin components (4), and the inner sides of the pin grooves (201) are in insertion fit with the outer sides of the end portions of the pin components (4).

4. A vacuum pump for preventing depressurization as set forth in claim 3, wherein: the caliber of the outer end of the limiting groove (301) is provided with an internal thread (302).

5. A vacuum pump of claim 4, wherein: bolt subassembly (4) include with cotter way (201) grafting complex bolt (401), bolt (401) are inside hollow cylinder structure, just embedded spring (402) that is equipped with of bolt (401), bolt (401) inner still is equipped with external screw thread (403), external screw thread (403) and internal thread (302) screw-thread fit.

6. A vacuum pump for preventing depressurization as set forth in claim 1, wherein: and a gasket (8) is also sleeved between the nut (7) and the substrate (5).