CN216092585U - Rotary sleeve of pre-filter - Google Patents

Abstract

The utility model discloses a rotary sleeve of a pre-filter, which comprises a sleeve body which is concentric with a filter element and is sleeved outside the filter element, and a blade part which is fixed on the sleeve body, wherein the blade part is impacted by water flow which moves along the axial direction of the sleeve body to drive the rotary sleeve to rotate. The central line that the rotary sleeve used the filter core is the rotation axis, and under the rivers impact (when the drain opened promptly) along set body axial motion, need not to install other supporting parts in the filter flask, just can rely on rotary sleeve self to rotate to the installation space of filter core has been increased, and then has promoted leading filter's filtering quality. In addition, the rotary sleeve rotates at a high speed, so that when water in the filter flask is stirred, partial particle impurities can be smashed, and the pollution discharge is facilitated.

Description

Rotary sleeve of pre-filter

Technical Field

The utility model relates to a component of a pre-filter, in particular to a rotary sleeve which can utilize moving water flow and realize rotation through a self structure.

Background

The pre-filter is usually the first filtering defense line of the household water, and can effectively filter the particulate matters such as silt, rust, worm eggs and the like in the tap water, thereby protecting the subsequent water purifying equipment.

The leading filter on the existing market, a lot all are equipped with autogiration's rotary sleeve (or scrape brush cover) structure, and its principle utilizes the rivers that flow, drives the impeller and rotates to realize the autogiration of rotary sleeve or scraping brush cover. For example: patent CN 204723877U; patent CN 205549756U; patent CN 211885757U; patent CN 212818551U; patent CN213159630U, etc., all disclose similar structures.

Taking patent CN205549756U as an example, the patent discloses an impeller-driven pollution discharge type prefilter, which comprises a filter shell consisting of a filter cup body and a main valve body fixed at the upper end of the filter cup body, wherein the lower end of the filter cup body is a bucket-shaped pollution discharge cavity connected with a drain valve, a filter screen framework and a filter screen are fixed inside the filter shell, a rotary cylinder is sleeved outside the filter screen framework, and a brush is arranged on the inner side wall of the rotary cylinder; the lower end of the rotary cylinder is sequentially connected with a guide plate and an impeller through a universal driving shaft; the linkage shaft is of a hollow structure and is communicated with the interior of the rotary cylinder and the hopper-shaped sewage discharge cavity of the filter cup body.

In order to rotate the rotary drum, the prior art needs to add corresponding matching parts in the filter flask. For example: the prepositive filter of the patent CN205549756U needs to add three matching parts of a universal driving shaft, a guide plate and an impeller in a filter cup body (a filter flask). The guide plate is used for changing the movement direction of water flow, so that the water flow impacts the impeller in the positive direction and drives the impeller to rotate, and the impeller drives the rotary cylinder to rotate through the linkage shaft.

Although the above-mentioned accessories can effectively drive a rotary drum to rotate, because the inner space of the filter flask is limited, the more accessories additionally installed in the filter flask are, the larger extrusion is inevitably caused to the installation space of the filter element in the filter flask, thereby the integral filtering performance of the front filter is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a rotary sleeve of a pre-filter, aiming at solving the problems that the rotary sleeve (rotary cylinder) can rotate only by a plurality of matching parts in the prior art, so that the installation space of a filter element in a filter bottle is seriously extruded, and the filtering performance of the pre-filter is greatly influenced.

In order to achieve the purpose, the technical scheme provided by the utility model is as follows:

the rotary sleeve of the front filter comprises a sleeve body which is concentrically arranged with the filter element and is sleeved outside the filter element, and a blade part fixed on the sleeve body, wherein the blade part is impacted by water flow moving along the axial direction of the sleeve body to drive the rotary sleeve to rotate.

In a preferred embodiment, the blade portion includes a plurality of blades, and each of the blades surrounds the sidewall of the sheath in a spaced relationship.

In a preferred embodiment, each of said vanes is located on the outer side wall of the sheath body.

In a preferred embodiment, each of the vanes includes a beveled edge that is oblique to the axial direction of the jacket body.

In a preferred embodiment, the oblique sides are parallel to each other, and the oblique sides have an inclination of 15 ° to 75 °.

In a preferred embodiment, each of the blades further includes a horizontal side perpendicular to the axial direction of the sheath body, and one end of each of the horizontal sides is connected to the lower end of the corresponding oblique side.

In a preferred embodiment, the blade and the sheath are integrally formed.

In a preferred embodiment, the side wall of the sleeve body is provided with a scraping and brushing part for cleaning the filter flask and/or the filter element. The scraping and brushing part can be a brush or a part used for cleaning a filter bottle and/or a filter screen of a filter element, such as a scraping and brushing rubber strip (ring). The brush portion is scraped in the cooperation, can effectively wash the filter screen of filter flask or filter core.

In a preferred embodiment, the blade portion comprises an annular mounting portion and a plurality of blades, and each blade surrounds the side wall of the annular mounting portion at intervals; the annular assembling part is detachably sleeved on the side wall of the sleeve body.

In a preferred embodiment, the sleeve body is a hollow structure. This reduces the resistance to rotation.

Compared with the prior art, the technical scheme provided by the utility model has the following beneficial effects:

1. the filter core outside is located to the rotary sleeve cover, and under the rivers impact (when the drain opens promptly) along set body axial motion, need not to install other accessories in the filter flask, just can rely on rotary sleeve self to rotate to the installation space of filter core has been increased, and then has promoted leading filter's filtering quality.

2. The rotary sleeve rotates at a high speed, so that when water in the filter flask is stirred, partial particle impurities can be smashed, and the pollution discharge is facilitated.

Drawings

Fig. 1 is a schematic perspective view of a first embodiment.

FIG. 2 is a schematic cross-sectional view of a pre-filter with an embodiment mounted therein.

Fig. 3 is a schematic structural diagram of a shoe in the first embodiment.

Fig. 4 is a schematic perspective view of the second embodiment.

Fig. 5 is a schematic perspective view of a third embodiment.

Fig. 6 is a schematic perspective view of a fourth embodiment.

Detailed Description

For further understanding of the present invention, the present invention will be described in detail with reference to examples, which are provided for illustration of the present invention but are not intended to limit the scope of the present invention.

Example one

Referring to fig. 1, the rotary sleeve 1 of the pre-filter includes a circular sleeve body 2 and a blade portion, the sleeve body 2 of the present embodiment includes an upper ring beam 21, a middle ring beam 22, a lower ring beam 23, and a plurality of vertical axial beams 24, and each axial beam 24 is connected with the upper ring beam 21, the middle ring beam 22, and the lower ring beam 23.

The blade portion of the present embodiment integrally surrounds the outer sidewall of the lower ring beam 23, and the blade portion includes a plurality of blades 3, and specifically, each of the blades 3 surrounds and protrudes from the outer sidewall of the lower ring beam 23 at intervals. In the embodiment, the height of each blade 3 is the same, each blade 3 consists of a bevel edge 31 and a horizontal edge 32, the bevel edge 31 is inclined to the axial direction of the sleeve body, the bevel edges 31 are parallel, and the upper end of the bevel edge 31 is flush with the top surface of the lower ring beam 23; the lower end of the bevel edge 31 is flush with the bottom surface of the lower ring beam 23; each horizontal edge 32 is perpendicular to the axial direction of the sleeve body, one end of each horizontal edge 32 is connected to the lower end of the corresponding inclined edge 31, and the other end forms a free end. In this embodiment, the projection of the upper end of the oblique side 31 of a certain blade 3 just intersects the free end of the horizontal side 32 of the adjacent blade 3. In addition, the bevel edge 31 is typically inclined at an angle of 15 ° to 75 °, preferably 30 °. In addition, the oblique edge 31 may be a straight edge or an arc edge.

Referring also to fig. 2, fig. 2 shows a prefilter with a rotary sleeve 1, which comprises a valve head 41, a filter flask 42, a filter element 43, a support sleeve 44, a base support 45, a ball valve 46 and other main components, wherein the valve head 41 is arranged at the upper port of the filter flask 42, and the filter element 43 is fixedly arranged in the filter flask 42. The rotating sleeve 1, the bottom support 45 and the filter element 43 are concentrically arranged. Wherein, in the lower part of filter core 43 inserted collet 45, the lower extreme of rotary sleeve 1 supported against collet 45 to the outside of filter core 43 is located to rotary sleeve 1 cover. The support sleeve 44 is sealingly mounted to the drain outlet of the filter cartridge 43, and the upper end of the support sleeve 44 supports the shoe 45, and the ball valve 46 is mounted to and communicates with the lower end of the support sleeve 44.

Referring also to fig. 3, the mounting 45 includes a bottom plate 451, a surrounding wall 452, and a supporting ring 453 protruding from the surrounding wall 452, the lower end of the surrounding wall 452 surrounds the periphery of the bottom plate 451, and the supporting ring 453 is located on the upper portion of the surrounding wall 452 and surrounds the outer side of the surrounding wall 452. When mounted, the lower end of the swivel housing 1 abuts against the support ring 453. As shown in the figure, the rotary sleeve 1 of the present embodiment is sleeved outside the filter element 43 and is interposed between the filter flask 42 and the filter element 43, the blade 3 of the rotary sleeve 1 is close to the inner wall of the filter flask 42, and a certain distance is maintained between the blade 3 and the inner wall of the filter flask 42. Referring also to fig. 1, the inner wall of the upper ring beam 21 is provided with a plurality of protrusions 211 at intervals, the protrusions 211 face the filter element 43, and a gap of 5-15 wires is maintained between the protrusions 211 and the filter element 43 after the installation is completed.

When the ball valve 46 is opened, the water flows downward against the inner wall of the filter flask 42 near the bottom support 45, and these downward moving water flows directly impact the blade 3 of the blade part (in the axial direction of the sleeve body), so that the rotary sleeve 1 rotates at high speed. During the high-speed rotation of the rotary sleeve 1, water in the filter flask 42 is stirred, and part of particle impurities can be crushed, so that the pollution discharge is facilitated.

Example two

Referring to fig. 4, the second embodiment is basically the same as the first embodiment, and the main difference is that the blade portion of the second embodiment is composed of blades 3a parallel to each other.

EXAMPLE III

Referring to fig. 5, the third embodiment is similar to the second embodiment in structure, and the main difference is that the vane 3b of the third embodiment can be disposed inside the lower ring beam 23 on the premise of changing the flow channel.

Example four

Referring to fig. 6, the structure of this embodiment is substantially the same as that of the first embodiment, and the main difference is that the brush bristles 6 are additionally arranged on the rotary sleeve 1, and the filter screen of the filter element is directly cleaned during the rotation of the rotary sleeve 1.

The inner sides of the ring beams of the rotary sleeve 1 are respectively provided with brush hair 6 at intervals, and the free ends of the brush hair 6 are propped against the filter screen of the filter element during installation. When in pollution discharge, the downward moving water flow impacts the blades 3 of the rotary sleeve 1, so that the rotary sleeve 1 and the bristles 6 on the rotary sleeve rotate together, and the filter screen is cleaned.

It should be noted that the bristles of this embodiment may be replaced by rubber wiper strips.

In addition, in each of the above embodiments, the blade portion and the sheath body are fixed to each other by being integrally formed. In addition, the blade portion and the sheath body can be assembled to each other in a detachable and fixed manner.

For example: the blade part consists of an annular assembling part and a plurality of blades, and the blades are fixed on the side wall of the annular assembling part at intervals; the annular assembling part is detachably fixed on the side wall of the sleeve body.

The present invention has been described in detail with reference to the embodiments, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims (10)

1. Leading rotary sleeve of filter, its characterized in that: it includes with the filter core concentric setting and the cover body of cover locating the filter core outside and be fixed in blade portion on the cover body, this blade portion receives along the water impact of set body axial motion, drives the rotating sleeve and rotates.

2. The swivel sleeve of claim 1, wherein: the blade part comprises a plurality of blades, and the blades are arranged around the side wall of the sleeve body at intervals.

3. The swivel sleeve of claim 2, wherein: each blade is located the lateral wall of cover body.

4. The swivel sleeve of claim 2, wherein: each blade all includes the hypotenuse that inclines in the cover axial.

5. The swivel sleeve of claim 4, wherein: the oblique sides are parallel to each other and the oblique sides have an angle of inclination of 15 to 75.

6. The swivel sleeve of claim 4, wherein: each blade also comprises a horizontal edge which is vertical to the axial direction of the sleeve body, and one end of each horizontal edge is connected with the lower end of the corresponding bevel edge.

7. The swivel sleeve of claim 1, wherein: the blade part and the sleeve body are integrally formed.

8. The swivel sleeve of claim 1, wherein: the side wall of the sleeve body is provided with a scraping and brushing part used for cleaning the filter flask and/or the filter element.

9. The swivel sleeve of claim 1, wherein: the blade part comprises an annular assembling part and a plurality of blades, and the blades are arranged around the side wall of the annular assembling part at intervals; the annular assembling part is detachably sleeved on the side wall of the sleeve body.

10. The swivel sleeve of claim 1, wherein: the sleeve body is of a hollow structure.

Images