Drainage device for vacuum pump

Abstract

The utility model discloses a drainage device for a vacuum pump, which relates to the technical field of drainage of vacuum pumps, and is started to work by means of gravity of discharged water without manual intervention, so that the working efficiency is improved, and the failure rate is reduced. By arranging the filter screen, impurities such as scale are prevented from blocking the water outlet pipe; a water outlet pipeline is kept unblocked, and liquid backflow caused by pipeline blockage is prevented from damaging the vacuum pump; by arranging the automatically-closed valve, the drainage pipeline can be automatically closed after drainage is finished, it is guaranteed that the drainage pipeline is sealed, dust or other impurities are prevented from entering the vacuum pump, and the operation safety of the vacuum pump is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a vacuum pump drainage technical field, concretely is a drainage device for vacuum pump. BACKGROUND

[0002] The vacuum pump drainage device is usually used for removing liquid or condensate in the vacuum pump system to ensure the normal operation of the system; the drainage device usually needs to be kept closed after drainage to prevent dust or other impurities from entering the vacuum pump and affecting the normal operation of the vacuum pump system; the un-closed drainage valve may cause problems such as air leakage and energy efficiency reduction of the system, so the operator should ensure to close the drainage valve in time to maintain the stability of the system.

[0003] The utility model patent with the publication number CN214836991U discloses a drainage device for vacuum pump, which comprises a sleeve, a sealing ring, a perforated plate, a fan, a controller, a moving plate, an extension rod, a bottom plate, a spring, a pin and a rubber sleeve; by setting the sealing ring and the sealing assembly, the water outlet pipe of the vacuum pump is effectively sealed, and the daily operation is not disturbed.

[0004] However, the prior art structure is complex, and it needs to rely on external power or manpower to open the drainage device for work, which has low working efficiency and high failure rate; at the same time, the prior art does not set a filtering device, and the deposited scale and other impurities are easy to block the water outlet pipe; the prior art cannot keep the drainage pipeline sealed after the drainage is completed, which is easy to cause dust or other impurities to enter the vacuum pump, increase the pollution risk of the vacuum pump system, and affect the safe operation of the equipment. UTILITY MODEL CONTENTS

[0005] In view of the above technical problems, the utility model provides the following technical scheme; a drainage device for vacuum pump, including inner shell, outer shell, the inner shell bottom is fixedly provided with the inner shell fixed rod that drives the rotation valve rod close, the inner shell fixed rod is provided with the convex column that slides with screw rod in, the screw rod bottom is provided with the boss that slides with bottom shell inner wall, the screw rod is connected on the slide groove outside the rotation valve rod; the rotation valve rod is rotationally arranged in the bottom shell.

[0006] Further, the reset spring two is arranged between the inner shell fixed rod and the bottom shell, and the reset spring one is arranged between the screw rod and the rotation valve rod.

[0007] Further, the inner shell is connected to the bottom of the bottom shell through a water drain pipe, and the bottom shell is provided with a drainage pipe on the other side of the bottom.

[0008] Further, the inner shell is provided with a through hole for installation, and the upper part of the inner shell is made of rubber material.

[0009] Further, the water drain pipe is made of rubber material.

[0010] Further, the shell is fixedly arranged on the bottom shell, and the shell is provided with a through hole for mounting.

[0011] Further, the bottom of the inner shell is provided with a filter screen.

[0012] The utility model discloses compared with prior art has the beneficial effects that: 1, the utility model discloses by depending on the gravity of the water discharge to open the water drainage device work, need not manual intervention, improves work efficiency and reduces the failure rate, 2, by setting up filter screen, avoid the scale and other impurities and block the outlet pipe, keep the outlet pipeline unobstructed, prevent the liquid backflow damage vacuum pump because pipeline blockage, 3, by setting up the valve of automatic closure, can close the water drainage pipeline after the water drainage, guarantee water drainage pipeline seal, prevent dust or other impurities from entering vacuum pump, guarantee the safety of vacuum pump operation. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the partial structure section view of the utility model.

[0014] Figure 2 It is the overall structure section view of the utility model.

[0015] Figure 3 It is the overall structure front view angle schematic view of the utility model.

[0016] Figure 4 It is the overall structure side view angle schematic view of the utility model.

[0017] Figure 5 It is the partial structure section view of the inner shell of the utility model.

[0018] Figure 6 It is the partial structure schematic view of the utility model.

[0019] Figure 7 It is the partial structure section view of the utility model Figure 1 .

[0020] Figure 8 It is the partial structure section view of the utility model Figure 2 .

[0021] Reference signs: 1-inner shell, 2-inner shell fixed rod, 3-threaded rod, 4-reset spring one, 5-rotary valve rod, 6-drain pipe, 7-drain pipe, 8-bottom shell, 9-reset spring two, 10-outer shell. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] As shown in Figures 1 to 8 A kind of drainage device for vacuum pump, inner shell 1 bottom is fixedly provided with the inner shell fixed rod 2 of drive rotating valve stem rod 5 closure, inner shell fixed rod 2 is provided with the protruding column of sliding cooperation with threaded rod 3, threaded rod 3 bottom is provided with the boss of sliding cooperation with the inner wall of bottom shell 8, threaded rod 3 is slidably connected on the sliding groove outside rotating valve stem rod 5;Rotating valve stem rod 5 is rotationally arranged in bottom shell 8.

[0024] As shown in Figures 1 to 8 Inner shell fixed rod 2 is provided with reset spring two 9 between bottom shell 8, threaded rod 3 is provided with reset spring one 4 between rotating valve stem rod 5. Inner shell 1 is connected at the bottom of bottom shell 8 by water drain pipe 7, and the other side of the bottom of bottom shell 8 is provided with drain pipe 6. Inner shell 1 is provided with through hole for installation, and the upper portion of inner shell 1 is made of rubber material;Water drain pipe 7 is made of rubber material;Shell 10 is fixedly arranged on bottom shell 8, and shell 10 is provided with through hole for installation;Inner shell 1 bottom is provided with filter screen.

[0025] As shown in Figures 1 to 8 The utility model discloses a kind of drainage device for vacuum pump, and its working principle is as follows: the inner shell 1 of the device is installed in the drainage port of vacuum pump by the through hole provided on the inner shell 1, shell 10 is installed on the vacuum pump body by the through hole provided on the shell 10, water flows into the inner shell 1 and gathers when flowing out of the drainage port, when the water in the inner shell 1 gathers to predetermined weight after a certain time, under the action of weight, the inner shell 1 moves threaded rod 3 to inner shell fixed rod 2, reset spring two 9 is gradually compressed at this time, reset spring one 4 is also gradually compressed, when the boss of the bottom of threaded rod 3 moves to the annular chamber in the bottom of bottom shell 8, bottom shell 8 limits threaded rod 3 moving downward, at this time, inner shell 1, inner shell fixed rod 2 continue to move threaded rod 3, threaded rod 3 is limited by bottom shell 8 at this time, the protruding column of the outer spiral groove cooperation of inner shell fixed rod 2 and threaded rod 3 pushes threaded rod 3 to rotate, threaded rod 3 rotates and drives rotating valve stem rod 5 to rotate, rotating valve stem rod 5 rotates and drives the valve at the bottom of rotating valve stem rod 5 to rotate, at this time, the passageway of inner shell 1, water drain pipe 7 and drain pipe 6 is opened, the water in the inner shell 1 is discharged from drain pipe 6 through the valve at the bottom of rotating valve stem rod 5 by water drain pipe 7.

[0026] When the water in the inner shell 1 is discharged, the threaded rod 3, the inner shell fixing rod 2 and the inner shell 1 are gradually pushed back under the action of the reset spring 1 and the reset spring 2. At this time, the reset spring 1 pushes the threaded rod 3 back, and the reset spring 2 pushes the inner shell fixing rod 2 back. During the reset process, when the reset spring 2 pushes the inner shell fixing rod 2 back, the inner shell fixing rod 2 drives the threaded rod 3 to rotate, the threaded rod 3 drives the rotating valve rod 5 to reset, and the channel formed by the inner shell 1, the water discharge pipe 7 and the drain pipe 6 is closed again, preparing for the next drainage.

Claims

1. A drainage device for a vacuum pump, comprising an inner shell (1) and an outer shell (10), characterized in that: The bottom of the inner shell (1) is fixedly provided with an inner shell fixing rod (2) that drives the rotating valve rod (5) to close. The inner shell fixing rod (2) is provided with a protruding post that slides with the threaded rod (3). The bottom of the threaded rod (3) is provided with a boss that slides with the inner wall of the bottom outer shell (8). The threaded rod (3) is slidably connected to the sliding groove on the outside of the rotating valve rod (5). The rotating valve rod (5) is rotatably disposed inside the bottom outer shell (8).

2. The drainage device for a vacuum pump according to claim 1, characterized in that: A second return spring (9) is provided between the inner shell fixing rod (2) and the bottom outer shell (8), and a first return spring (4) is provided between the threaded rod (3) and the rotating valve rod (5).

3. A drainage device for a vacuum pump according to claim 2, characterized in that: The inner shell (1) is connected to the bottom of the bottom outer shell (8) via a drain pipe (7), and a drain pipe (6) is provided on the other side of the bottom of the bottom outer shell (8).

4. A drainage device for a vacuum pump according to claim 3, characterized in that: The inner shell (1) is provided with a through hole for installation, and the upper part of the inner shell (1) is made of rubber material.

5. A drainage device for a vacuum pump according to claim 4, characterized in that: The drain pipe (7) is made of rubber.

6. A drainage device for a vacuum pump according to claim 5, characterized in that: The outer shell (10) is fixedly mounted on the bottom outer shell (8), and the outer shell (10) is provided with through holes for installation.

7. A drainage device for a vacuum pump according to claim 6, characterized in that: A filter screen is provided at the bottom of the inner shell (1).

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