CN213628015U

CN213628015U - Combined multistage pump

Info

Publication number: CN213628015U
Application number: CN202022463217.XU
Authority: CN
Inventors: 赵军彪
Original assignee: Zhejiang Shenneng Technology Co ltd
Current assignee: Zhejiang Shenneng Technology Co ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-07-06
Anticipated expiration: 2030-10-30

Abstract

The utility model belongs to the technical field of multistage pumps, in particular to a combined multistage pump, which comprises a multistage pump body, an inlet and outlet flange arranged on the upper surface of the multistage pump body and support legs fixed on the lower surface of the multistage pump body, wherein a screw rod is fixed on the side surface of the inlet and outlet flange, a lower pressing plate is sleeved outside the screw rod, a nut is screwed on the upper end of the screw rod, the lower end of the nut is in contact with the upper surface of the lower pressing plate, a slider is welded on the inner surface of the lower pressing plate, and a chute is arranged on the outer surface of the screw rod; through the screw rod, holding down plate and the nut of importing and exporting flange upper surface setting, it is spacing through the nut after the screw rod is outside to lower the clamp plate cup joint simultaneously, and the flange of being convenient for outside is fixed a position after through the holding down plate extrusion, has increased the convenience that the flange is fixed, and the slider of holding down plate internal surface integrated into one piece installs in the spout that the screw rod surface was seted up simultaneously, has increased the stability that the holding down plate removed.

Description

Combined multistage pump

Technical Field

The utility model belongs to the technical field of the multistage pump, concretely relates to modular multistage pump.

Background

The multi-stage pump is a centrifugal pump combining a water inlet section and a water outlet section with a middle section through a pull rod, the output water pressure of the multi-stage pump can be very high, and the centrifugal force is obtained by the rotation of an impeller, so that materials are obtained. When the gas density reaches the working range of the mechanical vacuum pump, the gas is pumped out, so that high vacuum is gradually obtained. When the existing multistage pump is used, the flange plate outside the multistage pump is inconvenient to connect, the airtight effect of the multistage pump is poor, and the supporting legs buffer the inconvenient problem.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides a modular multistage pump has the convenient stability of multistage pump and outside pipe connection, and the leakproofness is good, the poor characteristics of stabilizer blade shock-absorbing capacity of multistage pump are connected to the multistage pump simultaneously.

In order to achieve the above object, the utility model provides a following technical scheme: a combined multistage pump comprises a multistage pump body, an inlet and outlet flange and supporting legs, wherein the inlet and outlet flange is installed on the upper surface of the multistage pump body, the supporting legs are fixed on the lower surface of the multistage pump body, a screw rod is fixed on the side surface of the inlet and outlet flange, a lower pressing plate is sleeved outside the screw rod, a nut is screwed at the upper end of the screw rod, the lower end of the nut is in contact with the upper surface of the lower pressing plate, a sliding block is welded on the inner surface of the lower pressing plate, a sliding groove is formed in the outer surface of the screw rod, the sliding block is installed inside the sliding groove, a buffer spring is sleeved outside the screw rod, the upper end of the buffer spring is in contact with the lower surface of the lower pressing plate, the lower end of the buffer spring is in contact with the upper surface of the inlet and outlet flange, a sealing rubber ring is arranged on the upper surface of the inlet and, the upper surface of the inlet and outlet flange is provided with a limiting groove, and the limiting convex ring is arranged inside the limiting groove.

As a preferred technical scheme of modular multistage pump, the buffering gum cover has been cup jointed at the edge of stabilizer blade, just the buffering gum cover is the plate-like component of "U" font.

As the utility model discloses a modular preferred technical scheme of multistage pump, import and export flange upper surface welded's screw rod is provided with two, two the screw rod is located the both ends of importing and exporting the flange diameter.

As a preferred technical scheme of modular multistage pump, the spout that holding down plate internal surface welded slider and screw rod surface were seted up all is provided with two.

As the utility model discloses a preferred technical scheme of modular multistage pump, the holding down plate is the arc structure, just the holding down plate is the third of ring.

As the utility model discloses a preferred technical scheme of modular multistage pump, the groove of buckling that the sealed rubber ring surface set up is provided with two.

Compared with the prior art, the beneficial effects of the utility model are that: through the screw rod of importing and exporting flange upper surface setting, holding down plate and nut, it is spacing through the nut after the screw rod is outside to lower the clamp plate cup joint simultaneously, the outside flange of being convenient for is fixed a position after through the holding down plate extrusion, the convenience of flange fixation has been increased, simultaneously hold down plate internal surface integrated into one piece's slider is installed in the spout of seting up at the screw rod surface, the stability that the holding down plate removed has been increased, the outside buffer spring who cup joints of screw rod simultaneously, the holding down plate resets after the nut is unscrewed to be convenient for, simultaneously the bending groove of sealed rubber ring side surface setting, the holding down plate of being convenient for is deformed after the extrusion, the holding down plate is fixed at the upper surface of importing and exporting the flange through spacing bulge loop and spacing recess simultaneously, the stability of sealed rubber.

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 the present invention;

fig. 2 is a schematic view of the structure of the inlet and outlet flanges, the screw rod, the lower pressing plate, the screw cap and the sealing rubber ring of the present invention;

fig. 3 is a schematic diagram of a lower pressing plate structure in the present invention;

in the figure: 1. a multi-stage pump body; 2. an inlet and outlet flange; 3. a support leg; 4. a screw; 5. a lower pressing plate; 6. a nut; 7. sealing the rubber ring; 8. a slider; 9. a chute; 10. a buffer spring; 11. bending the groove; 12. a limit convex ring; 13. a limiting groove; 14. and (5) buffering rubber sleeves.

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 work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-3, the present invention provides a technical solution: a combined multistage pump comprises a multistage pump body 1, an inlet and outlet flange 2 and supporting legs 3, wherein the inlet and outlet flange 2 is installed on the upper surface of the multistage pump body 1, the supporting legs 3 are fixed on the lower surface of the multistage pump body 1, a screw rod 4 is fixed on the side surface of the inlet and outlet flange 2, a lower pressing plate 5 is sleeved outside the screw rod 4, a screw cap 6 is screwed on the upper end of the screw rod 4, the lower end of the screw cap 6 is in contact with the upper surface of the lower pressing plate 5, a sliding block 8 is welded on the inner surface of the lower pressing plate 5, a sliding groove 9 is formed in the outer surface of the screw rod 4, the sliding block 8 is installed inside the sliding groove 9, a buffer spring 10 is sleeved outside the screw rod 4, the upper end of the buffer spring 10 is in contact with the lower surface of the lower pressing plate 5, the lower end of the buffer spring 10 is in contact with the upper surface of the inlet and outlet flange 2, a, the upper surface of the inlet and outlet flange 2 is provided with a limiting groove 13, and a limiting convex ring 12 is arranged inside the limiting groove 13.

In this embodiment, through the screw rod 4 of importing and exporting 2 upper surfaces of flange setting, holding down plate 5 and nut 6, simultaneously holding down plate 5 cup joints and carries on spacingly through nut 6 behind screw rod 4 outside, the outside flange of being convenient for fixes a position after 5 extrusion of holding down plate, the convenience that the flange is fixed has been increased, simultaneously holding down plate 5 internal surface integrated into one piece's slider 8 is installed in the spout 9 that the screw rod 4 surface was seted up, the stability that holding down plate 5 removed has been increased, the outside buffer spring 10 that cup joints of screw rod 4 simultaneously, it resets to be convenient for nut 6 unscrews back holding down plate 5, the groove 11 of buckling that the side surface of sealing rubber ring 7 set up simultaneously, it deforms to be convenient for holding down plate 5 after receiving the extrusion, simultaneously holding down plate 5 fixes the upper surface of importing and exporting flange 2 through spacing bulge loop 12 and spacing recess 13, the stability of sealing rubber ring 7 installation has been.

Specifically, the edge of the supporting leg 3 is sleeved with a buffer rubber sleeve 14, and the buffer rubber sleeve 14 is a U-shaped plate-shaped member.

In this embodiment, the buffer rubber sleeve 14 is convenient for buffering the supporting leg 3.

Specifically, two screw rods 4 welded to the upper surfaces of the inlet and outlet flanges 2 are arranged, and the two screw rods 4 are located at two ends of the diameter of the inlet and outlet flanges 2.

In this embodiment, be convenient for fix a position the flange of outside.

Specifically, two sliding blocks 8 welded on the inner surface of the lower pressing plate 5 and two sliding grooves 9 formed in the outer surface of the screw rod 4 are arranged.

In this embodiment, the stability of the movement of the lower platen 5 is increased.

Specifically, the lower pressing plate 5 is of an arc-shaped structure, and the lower pressing plate 5 is one third of a circular ring.

In this embodiment, the lower pressing plate 5 is convenient to position the external flange.

Specifically, two bending grooves 11 are arranged on the outer surface of the sealing rubber ring 7.

In this embodiment, the sealing rubber ring 7 is convenient to deform by extrusion.

The utility model discloses a theory of operation and use flow: during installation, the support legs 3 are fixed at proper positions, the buffer rubber sleeve 14 is sleeved on the edges of the support legs 3 when the support legs 3 are fixed, during use, the seal rubber ring 7 is placed on the upper surface of the inlet and outlet flange 2, the limit convex ring 12 integrally formed on the lower surface of the seal rubber ring 7 is installed in the limit groove 13 formed in the upper surface of the inlet and outlet flange 2, the outer flange is placed on the upper surface of the seal rubber ring 7, the screw cap 6 is rotated, the lower pressing plate 5 moves downwards under the action of the screw cap 6, meanwhile, the sliding block 8 welded on the inner surface of the lower pressing plate 5 moves in the sliding groove 9 formed in the outer surface of the screw rod 4, and meanwhile, the flange plates are fixed after the lower pressing plate 5 extrudes the flange plates.

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 modular multistage pump, includes multistage pump body (1), multistage pump body (1) upper surface mounting's import and export flange (2) and multistage pump body (1) fixed surface's stabilizer blade (3), its characterized in that: a screw rod (4) is fixed on the side surface of the inlet and outlet flange (2), a lower pressing plate (5) is sleeved outside the screw rod (4), a nut (6) is screwed at the upper end of the screw rod (4), the lower end of the nut (6) is in contact with the upper surface of the lower pressing plate (5), a sliding block (8) is welded on the inner surface of the lower pressing plate (5), a sliding groove (9) is formed in the outer surface of the screw rod (4), the sliding block (8) is installed inside the sliding groove (9), a buffer spring (10) is sleeved outside the screw rod (4), the upper end of the buffer spring (10) is in contact with the lower surface of the lower pressing plate (5), the lower end of the buffer spring (10) is in contact with the upper surface of the inlet and outlet flange (2), a sealing rubber ring (7) is arranged on the upper surface of the inlet and outlet flange (2), and a bending groove (11) is formed in the side surface, the lower surface integrated into one piece of sealed rubber ring (7) has spacing bulge loop (12), spacing recess (13) have been seted up to the upper surface of importing and exporting flange (2), just spacing bulge loop (12) are installed in the inside of spacing recess (13).

2. A modular multistage pump according to claim 1, characterized in that: the edge of the supporting leg (3) is sleeved with a buffer rubber sleeve (14), and the buffer rubber sleeve (14) is a U-shaped plate-shaped component.

3. A modular multistage pump according to claim 1, characterized in that: the two screw rods (4) welded to the upper surfaces of the inlet and outlet flanges (2) are arranged, and the two screw rods (4) are located at the two ends of the diameter of the inlet and outlet flanges (2).

4. A modular multistage pump according to claim 1, characterized in that: two sliding blocks (8) welded on the inner surface of the lower pressing plate (5) and two sliding grooves (9) formed in the outer surface of the screw rod (4) are arranged.

5. A modular multistage pump according to claim 1, characterized in that: the lower pressing plate (5) is of an arc-shaped structure, and the lower pressing plate (5) is one third of a circular ring.

6. A modular multistage pump according to claim 1, characterized in that: two bending grooves (11) are formed in the outer surface of the sealing rubber ring (7).