CN209212982U - A kind of barrel with drain pump inflatable seal platen - Google Patents

Abstract

The utility model discloses a kind of barrel with drain pump inflatable seal platen, platen including drain pump staving and Qi Nei, a metal supporting rings are connected with along the periphery of platen, annular groove of the metal supporting rings with opening outwardly, a matched Inflatable elastic circle is connected in annular groove, elastic ring is equipped with intracavity gas control valve.The utility model freely can be established and be released, platen can be achieved very easily to move up and down in bucket, when being downwardly into bucket not in contact with medium is arrived, elastic ring exhaust is shunk, its outer wall and the blow-by of bucket wall, atmosphere in the tub under platen can be discharged from the two gap reduces resistance, after platen touches medium in bucket, elastic ring inflation, it is sealed between its outer wall and bucket wall, platen pressurizes downwards start-up operation, medium is avoided to be squeezed out by the downward pressure of platen, after medium has conveyed in bucket, the sealing for releasing elastic ring and bucket wall is vented by elastic ring, it moves up and is easily taken out out of bucket.

Description

A kind of barrel with drain pump inflatable seal platen

Technical field

The utility model relates to drain pumps, and in particular to a kind of barrel with drain pump inflatable seal platen.

Background technique

When needing the container that empties is the column barrel container of smooth rule, need a kind of simple, dynamic sealing well, rub The small platen of power is wiped, is pressurizeed with playing the medium into bucket, makes the high viscosity medium for being difficult to flow in bucket in platen auxiliary pressurized Under effect, pump intake is flowed to, so as to be continuously conveyed.But existing platen is the cylinder for being rule for the container emptied is needed Shape bucket is contacted with bucket inner wall when platen moves up and down in bucket, and platen contacts but between the two with bucket inner wall when moving down Without sealing, push time-consuming and laborious when medium, platen is contacted with bucket inner wall when moving up, and cannot easily be taken out out of bucket.

Utility model content

In order to solve the above-mentioned problems in the prior art, the utility model provides a kind of barrel with drain pump inflatable Seal platen, when lower mobile platen contacted with bucket inner wall between seal, there is a fixed spacing when moving up between the two.

The technical solution adopted in the utility model is as follows: a kind of barrel with drain pump inflatable seal platen, including drain pump The platen of staving and Qi Nei is connected with a metal supporting rings, annular of the metal supporting rings with opening outwardly along the periphery of platen Slot, a matched Inflatable elastic circle is connected in annular groove, and elastic ring is equipped with intracavity gas control valve.

Elastic ring outer diameter after contraction is less than metal supporting rings outer diameter, and the elastic ring outer diameter after inflation is greater than 5- in staving 10mm。

Preferably, the bottom surface of metal supporting rings and flat platen bottom face are matched, and the two is integrally formed.

Preferably, gas control valve is located above platen, is mounted on inflation vent connection, and inflation vent connection passes through ring Shape cell wall is communicated with the annular chamber of elastic ring.

Preferably, elastic ring is made of rubber.

Preferably, the wall thickness of rubber ring is greater than 8mm.

Preferably, the outer diameter variation after rubber ring shrinks or inflates is 15 ~ 20mm.

Preferably, rubber ring cross section is rectangle.

The utility model has the beneficial effects that:

1. the utility model, by inflating into annular resilient collar, elastic ring outer diameter increases, make elastic ring outer surface and bucket Wall contact, establishes sealing；By contraction of gas in emptying elastic ring, gap is generated；By adjusting the blowing pressure in elastic ring, adjust Save sealing effect and elastic ring outer wall and bucket inner wall frictional force；The inflatable seal platen of the utility model can be established freely With releasing, platen can be moved up and down very easily in bucket, when being downwardly into bucket not in contact with to medium, elastic ring outer wall with Bucket wall blow-by, atmosphere in the tub can be discharged from the two gap at this time, reduce resistance and fill after platen touches medium in bucket It is sealed between gas elasticity ring outer wall and bucket wall, platen pressurizes downwards start-up operation, avoids medium and is squeezed by the downward pressure of platen Out, after medium has conveyed in bucket, it is vented elastic ring by gas control valve, releases the sealing of elastic ring and bucket wall, at this time It moves up, air can enter from the gap of the two, and platen easily takes out out of bucket.

The utility model is controlled outer diameter variation within 15 ~ 20mm by the deflation or inflation of rubber ring, easy to operate Conveniently, good sealing or enough gaps can be generated on demand.It is controlled well by the utility model to only contact After to medium just inflation generate sealing, and by gas control valve control elastic ring annular chamber in the blowing pressure be adjusted it is close The frictional force size that Feng Shiyu inner wall of barrel generates, avoids the spilling and splashing of medium.

3. the utility model only needs metal supporting rings and rubber ring, structure is simple and in the column barrel of rule It is very good using clear bucket effect, the basic noresidue of bucket wall.

Detailed description of the invention

Barrels of Fig. 1 are used drain pump inflatable seal press plate structure schematic diagram；

Barrels of Fig. 2 empty contraction state schematic diagram with drain pump inflatable seal platen；

Barrels of Fig. 3 are used drain pump inflatable seal platen sealing ring inflated condition schematic diagram；

In figure: 1- metal supporting rings；2- rubber ring；3- inflation/vent connection；4- barrels of inner walls；5- barrels of bottoms；6- medium； 7- pump intake.

Specific embodiment

The utility model is further explained and is illustrated below with reference to specific attached drawing；

A kind of barrel with drain pump inflatable seal platen, including drain pump staving and platen, the periphery along platen is connected with One metal supporting rings, metal supporting rings have the annular groove of opening outwardly, are connected with a matched inflatable in annular groove Elastic ring, elastic ring are equipped with intracavity gas control valve.The bottom surface of metal supporting rings and flat platen bottom face are matched, the two one at Type.Gas control valve passes through annular groove wall, is located above platen, is convenient for manual operation, and elastic ring is made of rubber.Rubber ring Wall thickness be greater than 8mm.Outer diameter variation after rubber ring shrinks or inflates is 15-20mm.Metal supporting rings outer diameter is than in staving The small 10mm of diameter to generate effective clearance, while can play the role of fixed support rubber ring again.After rubber ring is shunk, outer diameter It is less than metal supporting rings outer diameter.After rubber ring inflation, outer diameter is greater than a barrel internal diameter 5-10mm, to generate excellent sealing.

Rubber ring cross section is rectangle or approximate rectangular, and sealing surface needs 20mm or more width, to guarantee that sealing is effective Property.Rubber ring wall thickness is greater than 8mm, to guarantee sufficient intensity, squeezes from metal supporting rings and bucket inner wall gap after preventing inflation Out.

As shown in Figure 1, rubber ring 2 is mounted in metal supporting rings 1, gas control valve is mounted on inflation/exhaust port pipe 3 On, connection inside inflation/exhaust port pipe 3 and rubber ring.As shown in Fig. 2, rubber ring 2 is certainly when gas control valve is opened It is shunk under body elastic reaction, gap at this moment can be generated between rubber ring 2 and bucket inner wall 4.At this moment the sealing of rubber ring 2 and bucket inner wall It releases, metal supporting rings 1 can freely move up and down in bucket.Rubber ring 2 after metal supporting rings 1 and contraction touches in bucket When medium 6, as shown in figure 3, manual operation gas control valve is passed through by inflation/vent connection 3 into the annular chamber of rubber ring 2 The compressed air of certain pressure, at this moment rubber ring 2 will increase, and under the positioning of becket 1,2 outer diameter of rubber ring be will increase always To barrel inner wall 4 is touched, sealing is established, at this moment metal supporting rings decline under the pressure of outer inside casing, and medium 6 will be by bucket It is pressed at pump intake 7, as shown in Figure 2.When medium has been conveyed, after metal supporting rings 1 reach bucket bottom, gas control valve is opened, Repeat the above process.

Claims (8)

1. a kind of barrel with drain pump inflatable seal platen, the platen including drain pump staving and Qi Nei, it is characterised in that: along pressure The periphery of disk is connected with a metal supporting rings, annular groove of the metal supporting rings with opening outwardly, be connected in annular groove one with Its matched Inflatable elastic circle, elastic ring are equipped with intracavity gas control valve.

2. a kind of barrel according to claim 1 with drain pump inflatable seal platen, it is characterised in that: the elasticity after contraction It encloses outer diameter and is less than metal supporting rings outer diameter, the elastic ring outer diameter after inflation is greater than 5-10mm in staving.

3. a kind of barrel according to claim 2 with drain pump inflatable seal platen, it is characterised in that: metal supporting rings Bottom surface is matched with flat platen bottom face, and the two is integrally formed.

4. a kind of barrel according to claim 1,2 or 3 with drain pump inflatable seal platen, it is characterised in that: gas control Valve processed is located above platen, is mounted on inflation vent connection, and inflation vent connection passes through the annular of annular groove wall and elastic ring Chamber communicates.

5. a kind of barrel according to claim 4 with drain pump inflatable seal platen, it is characterised in that: elastic ring uses rubber Glue is made.

6. according to claim 1, described in 2,3 or 5 a kind of barrel with drain pump inflatable seal platen, it is characterised in that: rubber The wall thickness of circle is greater than 8mm.

7. a kind of barrel according to claim 6 with drain pump inflatable seal platen, it is characterised in that: rubber ring shrink or Outer diameter variation after inflation is 15 ~ 20mm.

8. a kind of barrel according to claim 1 or claim 7 with drain pump inflatable seal platen, it is characterised in that: rubber ring is horizontal Section is rectangle.