CN212429291U

CN212429291U - Sanitary centrifugal pump machine seal convenient to replace

Info

Publication number: CN212429291U
Application number: CN202021146368.6U
Authority: CN
Inventors: 马小东
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2021-01-29
Anticipated expiration: 2030-06-19

Abstract

The utility model discloses a convenient sanitary-grade centrifugal pump machine that changes seals, including the machine main part that seals, the one end of machine main part is provided with outer solid fixed ring, and interior elasticity ring is installed to outer solid fixed ring's inboard, and the one end of interior elasticity ring is provided with preceding takeover, and the spring pipe is installed to the one end of preceding takeover, and back overlap joint pipe is installed to the one end of spring pipe, and the surface of machine main part is provided with the fixed orifices, and the inboard of fixed orifices is provided with the top surface. The utility model discloses a set up spring structure in outer solid fixed ring's side direction fixed orifices inboard, can seal the major structure through the supplementary sealed fixed machine of inboard spring structure when the side direction is fixed cup joints, can assist the side direction of front bolt fixed to reduce because the produced machine of mechanical shock seals and rocks.

Description

Sanitary centrifugal pump machine seal convenient to replace

Technical Field

The utility model relates to a mechanical seal field, in particular to convenient sanitary-grade centrifugal pump mechanical seal who changes.

Background

The mechanical seal is a device for preventing fluid leakage, which is formed by at least one pair of end faces perpendicular to the rotation axis, and the end faces are kept in fit and relatively slide under the action of fluid pressure and the elastic force (or magnetic force) of a compensation mechanism and the cooperation of an auxiliary seal.

In the mechanical seal of the centrifugal pump, the side fixing in the outer fixed ring structure usually adopts a sleeving mode, and the bolt on the surface of the outer fixed ring is fixed in a main fixing mode.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art's defect, provide a convenient sanitary-grade centrifugal pump machine that changes and seal.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a convenient sanitary-grade centrifugal pump machine that changes seals, including the machine main part that seals, the one end of machine main part is provided with outer solid fixed ring, elasticity ring in outer solid fixed ring's inboard is installed, take over the pipe before the one end of interior elasticity ring is provided with, the spring pipe is installed to the one end of preceding take over, the back overlap joint pipe is installed to the one end of spring pipe, the surface of machine main part that seals is provided with the fixed orifices, the inboard of fixed orifices is provided with the top surface.

As a preferred technical scheme of the utility model, outer solid fixed ring and interior elastic ring are fixed connection, outer solid fixed ring is bilayer structure, and outer solid fixed ring's surface is provided with six screw holes and six hexagonal holes.

As a preferred technical scheme of the utility model, the inboard bottom of fixed orifices is provided with the base, the one end of base is provided with expanding spring, the top surface is installed to expanding spring's one end, base and fixed orifices are fixed connection, base and top surface pass through expanding spring elastic connection.

As a preferred technical scheme of the utility model, the inner wall of fixed orifices is provided with the thread groove, the both ends of thread groove are provided with the spout, the both ends of top surface are provided with the sliding block, sliding block and spout are sliding connection.

As the utility model discloses an optimal technical scheme, the inner wall of preceding takeover is provided with the sealing ring, the mouth of pipe distance of taking over before the sealing ring is CM, and the sealing ring takes over the pipe for inlaying the installation before with, the material of sealing ring is formed by the preparation of silicon rubber material.

As an optimal technical scheme of the utility model, preceding overlap joint pipe passes through spring pipe elastic connection with back overlap joint pipe, the spring pipe comprises metal ring seat and stainless steel spring.

As an optimal technical scheme of the utility model, base, top surface and expanding spring all use stainless steel material to make and form.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses a set up spring structure in outer solid fixed ring's side direction fixed orifices inboard, can seal the major structure through the supplementary sealed fixed machine of inboard spring structure when the side direction is fixed cup joints, can assist the side direction of front bolt fixed to reduce because the produced machine of mechanical shock seals and rocks.

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 view of the overall structure of embodiment 1;

FIG. 2 is a sectional view of the fixing hole structure of example 1;

FIG. 3 is an exploded view of the fixing hole structure of embodiment 2;

in the figure: 1. a machine seal main body; 2. an outer fixing ring; 3. an inner elastic ring; 4. a front lap joint pipe; 5. a spring tube; 6. a rear lap joint pipe; 7. a fixing hole; 8. a top surface; 9. a base; 10. a tension spring; 11. a thread groove; 12. a chute; 13. a slider; 14. and (4) a sealing ring.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Wherein like reference numerals refer to like parts throughout.

Example 1

As shown in fig. 1-2, the utility model provides a convenient sanitary-grade centrifugal pump machine that changes seals, including machine seal main part 1, the one end of machine seal main part 1 is provided with outer solid fixed ring 2, and interior elastic ring 3 is installed to outer solid fixed ring 2's inboard, and the one end of interior elastic ring 3 is provided with preceding overlap pipe 4, and spring pipe 5 is installed to preceding one end of overlap pipe 4, and back overlap pipe 6 is installed to spring pipe 5's one end, and the surface of machine seal main part 1 is provided with fixed orifices 7, and the inboard of fixed orifices 7 is provided with top surface 8.

Further, outer fixed ring 2 and interior elastic ring 3 are fixed connection, and outer fixed ring 2 is bilayer structure, and outer fixed ring 2's surface is provided with six screw holes and six hexagonal holes.

The inboard bottom of fixed orifices 7 is provided with base 9, and the one end of base 9 is provided with expanding spring 10, and top surface 8 is installed to expanding spring 10's one end, and base 9 and fixed orifices 7 are fixed connection, and base 9 and top surface 8 pass through expanding spring 10 elastic connection.

The inner wall of preceding overlap joint pipe 4 is provided with sealing ring 14, and the mouth of pipe distance of sealing ring 14 and preceding overlap joint pipe 4 is 5CM, and sealing ring 14 and preceding overlap joint pipe 4 are for inlaying the installation, and the material of sealing ring 14 is formed by the preparation of silicon rubber material.

The front lapping pipe 4 and the rear lapping pipe 6 are elastically connected through a spring pipe 5, and the spring pipe 5 consists of a metal ring seat and a stainless steel spring.

The base 9, the top surface 8 and the extension spring 10 are all made of stainless steel materials.

When the mechanical seal main body 1 is used, six threaded holes and six hexagonal holes on the surface of the outer fixing ring 2 are required to be respectively fixed with a connecting part of the centrifugal pump, so that a transverse fixing effect is formed, the lateral fixing is realized by respectively fixing the fixing rods inserted into two sides in the fixing holes 7, when the fixing rods are inserted into the fixing holes 7, the fixing rods at two ends extrude the top surface 8 inside the fixing holes 7, so that the expansion spring 10 between the top surface 8 and the base 9 is subjected to energy storage and extrusion, so that the gap between the outer fixing ring 2 and the fixing rods is reduced, the mechanical seal main body 1 is prevented from shaking in a small range due to vibration after the centrifugal pump is started, so that the service life of the mechanical seal main body 1 is lost, meanwhile, the sealing ring is arranged inside the front lap joint pipe 4, so that when other pipe orifices are conveniently inserted into the inner side of the front lap joint pipe 4, the pipe orifices and the, reducing the amount of liquid flowing in the nozzle and the gap in the front overlap tube 4.

Example 2

As shown in fig. 3, the inner wall of the fixing hole 7 is provided with a threaded groove 11, both ends of the threaded groove 11 are provided with sliding grooves 12, both ends of the top surface 8 are provided with sliding blocks 13, the sliding blocks 13 and the sliding grooves 12 are connected in a sliding manner, and the other structures are the same as those of embodiment 1.

Make the dead lever if the surface is provided with the helicitic texture, can install through the thread groove 11 of fixed orifices 7 inboard, then still extrude top surface 8 when getting into fixed orifices 7 inboard, the sliding block 13 of top surface will slide in spout 12, when guaranteeing the functionality of thread groove 11, reduce the gap between dead lever and the top surface 8, make its elastic construction can form the shock attenuation effect when the dead lever is rocked in case, when the dead lever surface is smooth structure, its diameter if be less than fixed orifices 7, also the directness is inserted to the inboard and is produced the supplementary fixed action of side, thereby increase outer fixed ring 2's supplementary fixed mode.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a convenient sanitary-grade centrifugal pump machine that changes seals, includes machine seal main part (1), its characterized in that, the one end of machine seal main part (1) is provided with outer solid fixed ring (2), interior elastic ring (3) are installed to the inboard of outer solid fixed ring (2), take over pipe (4) before the one end of interior elastic ring (3) is provided with, preceding one end of taking over pipe (4) is installed and is had spring pipe (5), back overlap joint pipe (6) are installed to the one end of spring pipe (5), the surface of machine seal main part (1) is provided with fixed orifices (7), the inboard of fixed orifices (7) is provided with top surface (8).

2. The centrifugal pump seal of the sanitary level convenient to replace of claim 1 is characterized in that the outer fixing ring (2) and the inner elastic ring (3) are fixedly connected, the outer fixing ring (2) is of a double-layer structure, and the surface of the outer fixing ring (2) is provided with six threaded holes and six hexagonal holes.

3. The centrifugal pump seal of the sanitary grade convenient to replace as claimed in claim 1, wherein a base (9) is arranged at the bottom end of the inner side of the fixing hole (7), a telescopic spring (10) is arranged at one end of the base (9), a top surface (8) is installed at one end of the telescopic spring (10), the base (9) and the fixing hole (7) are fixedly connected, and the base (9) and the top surface (8) are elastically connected through the telescopic spring (10).

4. A sanitary centrifugal pump seal convenient for replacement according to claim 3, wherein the inner wall of the fixing hole (7) is provided with a threaded groove (11), sliding grooves (12) are provided at two ends of the threaded groove (11), sliding blocks (13) are provided at two ends of the top surface (8), and the sliding blocks (13) and the sliding grooves (12) are in sliding connection.

5. The centrifugal pump seal of the sanitary grade convenient to replace according to claim 1, characterized in that the inner wall of the front lap joint pipe (4) is provided with a sealing ring (14), the distance between the sealing ring (14) and the pipe orifice of the front lap joint pipe (4) is 5CM, the sealing ring (14) and the front lap joint pipe (4) are installed in an embedded manner, and the material of the sealing ring (14) is made of a silicone rubber material.

6. The sanitary centrifugal pump seal convenient to replace according to claim 1, wherein the front overlap joint pipe (4) and the rear overlap joint pipe (6) are elastically connected through a spring pipe (5), and the spring pipe (5) consists of a metal ring seat and a stainless steel spring.

7. The centrifugal pump seal of sanitary grade of easy replacement of claim 4, characterized in that the base (9), top surface (8) and expansion spring (10) are made of stainless steel material.