CN220609394U - Filter for solvent purification - Google Patents

Abstract

The utility model relates to the technical field of filters, in particular to a filter for purifying a solvent, which comprises the following components: the filter comprises an upper filter shell, a lower filter shell and a filter assembly movably arranged between the upper filter shell and the lower filter shell; the filter assembly comprises a circular middle annular plate which is suitable for being clamped and embedded between the upper filter shell and the lower filter shell, a filter screen arranged on the middle annular plate, a movable block rotationally connected with the outer side wall of the middle annular plate, and a baffle rotationally connected with one end of the movable block far away from the middle annular plate; the movable block is sleeved on a limit column extending along the axial direction of the middle annular plate; the outer side walls of the upper filtering shell and the lower filtering shell are respectively provided with a pair of limiting parts which are suitable for being in plug-in fit with the limiting columns; a limiting groove for clamping and embedding the movable block is formed between the pair of limiting parts; the movable block is suitable for rotating around the limit column in the limit groove together with the baffle plate. The utility model can ensure the simplification of the structure on the basis of ensuring the filtering efficiency.

Description

Filter for solvent purification

Technical Field

The utility model relates to the technical field of filters, in particular to a filter for purifying a solvent.

Background

A filter for purifying a solvent generally refers to a device for removing impurities, particles or other impurities in a solvent, and is designed to ensure the purity and quality of the solvent before use or during recycling, and can be applied to various solvent purification processes, such as chemical, pharmaceutical and laboratory fields.

In the use process of the above-mentioned filter, a filter screen or a filter membrane needs to be designed therein to achieve a filtering effect, but no matter whether the filter screen or the filter membrane is used for a long time, impurities may accumulate on the filter screen or the filter membrane to cause a blocking problem, thereby affecting the purification and filtration efficiency; the filtering mechanism comprises a supporting ring which is connected onto the inner pipe wall of the liquid inlet pipe in a sealing sliding manner, a filtering ring is connected onto the inner ring wall of the supporting ring in a sealing sliding manner, a filtering membrane is connected onto the inner ring wall of the filtering ring, a baffle ring is arranged on one side, close to the purification filter main body, of the filtering ring, the baffle ring is fixedly connected onto the inner ring wall of the supporting ring, a transmission frame which is U-shaped is fixedly connected onto one side, close to the purification filter main body, of the supporting ring, a transmission rod is hinged onto one side, far away from the supporting ring, of the transmission frame, and a compression rod is hinged onto the other end of the transmission rod. The disclosed technology provides convenient removal and replacement of the filter membrane, thereby improving the working efficiency of the purification filter.

However, according to practical researches, the purification filter needs to detach and fix the filtering membrane, and needs to be matched with a plurality of components such as a filtering ring, a compression rod, a spring, a transmission rod, a transmission frame, a magnet, a baffle ring and the like, and the filter structure is arranged in the liquid inlet pipe, so that the inner diameter of the liquid inlet pipe is relatively smaller, the components are required to be arranged in the smaller liquid inlet pipe to fix and detach the filtering membrane, the installation is inconvenient, and the space size of the actual liquid flowing in the liquid inlet pipe can be influenced due to the complexity of the components. Therefore, it is necessary to further improve the structure of the purification filter to ensure the filtration efficiency while also achieving the simplification of the structure.

Disclosure of Invention

A first object of the present utility model is to provide a filter for solvent purification, which solves the technical problem of achieving structural simplicity while ensuring filtration efficiency.

The filter for solvent purification of the present utility model is realized as follows:

a filter for solvent purification, comprising: the filter comprises an upper filter shell, a lower filter shell and a filter assembly movably arranged between the upper filter shell and the lower filter shell; wherein the method comprises the steps of

The filter assembly comprises a circular middle annular plate, a filter screen, a movable block and a baffle, wherein the circular middle annular plate is suitable for being clamped and embedded between the upper filter shell and the lower filter shell, the filter screen is arranged on the middle annular plate, the movable block is rotationally connected with the outer side wall of the middle annular plate, and the baffle is rotationally connected with one end, far away from the middle annular plate, of the movable block;

the movable block is sleeved on a limit column extending along the axial direction of the middle annular plate; and

a pair of limiting parts which are suitable for being in plug-in fit with the limiting columns are respectively arranged on the outer side walls of the upper filtering shell and the lower filtering shell; a limiting groove for clamping and embedding the movable block is formed between the pair of limiting parts;

the movable block is suitable for rotating around the limit column in the limit groove together with the baffle plate.

Further optionally, a first pin shaft used for being in running fit with the movable block is arranged on the outer side wall of the middle annular plate; and

the movable block is provided with a second pin shaft which is used for being movably matched with the baffle.

Further optionally, each of the limiting parts is provided with a matching hole through which the limiting column penetrates;

and the matching hole is matched with the limit column through a key hole.

Further optionally, the limiting posts are respectively sleeved with a limiting nut at two ends extending out of the pair of limiting parts.

Further optionally, the outer side wall of the limiting part is rectangular; the baffle is rectangular; and

the size of the baffle in the width direction is not larger than the width of the limit groove along the axial direction of the middle annular plate;

when the middle ring plate is clamped and embedded between the upper filtering shell and the lower filtering shell, the length direction of the baffle plate is suitable for extending along the axial direction of the limiting column;

when the length direction of the baffle is perpendicular to the axial direction of the limit post, the baffle is suitable for rotating around the limit post along with the movable block.

Further optionally, the upper filtering shell and the lower filtering shell are both cylindrical structures; and

the outer diameter of the middle ring plate is not larger than the outer diameters of the upper filter shell and the lower filter shell.

Further optionally, the filter is characterized in that the end of the lower filter housing facing away from the upper filter housing is provided with a water outlet cover; and the water outlet cover is connected with a water outlet pipe in a matching way.

Further optionally, the water outlet cover is provided with an annular connecting ring with threads; and

the lower filtering shell is provided with a thread matching groove which is connected with the thread of the connecting ring.

Further optionally, a water inlet cover is arranged at the end part of the upper filtering shell, which faces away from the lower filtering shell; and the water inlet cover is connected with a liquid inlet funnel in a matching way.

Further optionally, the water inlet cover is provided with an annular connecting ring with threads; and

the upper filter shell is provided with a thread groove which is connected with the thread of the adapter ring.

By adopting the technical scheme, the utility model has the following beneficial effects: according to the filter for purifying the solvent, the filter assembly is designed between the upper filter shell and the lower filter shell, the baffle plate is rotatably connected with the movable block through the movable block and the movable block, so that the baffle plate can be converted into a horizontal state from a vertical state, the movable block is rotatably connected with the limiting column through the movable block, the middle ring plate rotates relative to the upper filter shell to separate from the upper filter shell and the upper filter shell, and the middle ring plate can rotate at 90 degrees relative to the movable block through the rotation fit of the middle ring plate and the movable block, so that impurities on the filter screen can be conveniently and rapidly cleaned, a good anti-blocking effect is achieved, and the filtering efficiency of the solvent is improved.

Drawings

FIG. 1 is a schematic view of the overall structure of a first view of a filter for solvent purification according to the present utility model;

FIG. 2 is a schematic cross-sectional structure of a filter for solvent purification of the present utility model;

FIG. 3 is a schematic view of the mating structure of the intermediate ring plate of the filter for solvent purification of the present utility model with the upper and lower filter housings;

fig. 4 is a schematic view showing the overall structure of a second view of the filter for solvent purification of the present utility model.

In the figure: the upper filtering shell 1, the lower filtering shell 2, the middle annular plate 3, the water inlet cover 4, the water outlet cover 5, the liquid inlet funnel 6, the water outlet pipe 7, the limiting part 8, the movable block 9, the limiting column 10, the first pin 11, the baffle 12, the second pin 13, the filter screen 14, the connecting ring 15, the connecting ring 16, the thread groove 17, the bulge 18, the matching hole 19 and the limiting nut 20.

Detailed Description

In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments that are illustrated in the appended drawings.

Referring to fig. 1 to 4, the present embodiment provides a filter for purifying a solvent, comprising: an upper filter housing 1, a lower filter housing 2 and a filter assembly movably disposed between the upper filter housing 1 and the lower filter housing 2.

Specifically, first, the end of the lower filter housing 2 facing away from the upper filter housing 1 is provided with a water outlet cover 5; and the water outlet cover 5 is connected with a water outlet pipe 7. The water outlet cover 5 is provided with an annular connecting ring 16 with threads; and the lower filter housing 2 is provided with a screw-thread fitting groove for screw-coupling with the coupling ring 16. Secondly, the end part of the upper filtering shell 1, which is back to the lower filtering shell 2, is provided with a water inlet cover 4; and the water inlet cover 4 is matched and connected with a liquid inlet funnel 6. The water inlet cover 4 is provided with an annular connecting ring 15 with threads; and the upper filter housing 1 is provided with a thread groove 17 for threaded connection with the adapter ring 15. Under this structure, not only conveniently to the assembly and the dismantlement of last filtration casing 1 and lower filtration casing 2, come to wash the inner wall of last filtration casing 1 and lower filtration casing 2, make things convenient for moreover when part structure goes wrong and needs to be changed, only need change with pertinence.

Further, in general terms, the filter assembly comprises a middle annular plate 3 which is suitable for being clamped between the upper filter housing 1 and the lower filter housing 2, a filter screen 14 arranged on the middle annular plate 3, a movable block 9 rotatably connected with the outer side wall of the middle annular plate 3, and a baffle 12 rotatably connected with one end of the movable block 9 away from the middle annular plate 3.

On the basis of the above structure, that is, the shutter 12 is rotatable relative to the movable block 9, and the intermediate ring plate 3 is rotatable relative to the movable block 9. This facilitates cleaning of the impurities on the sieve 14 by rotation of the intermediate ring plate 3 with respect to the movable block 9. In order to meet this requirement, it is to be noted that a first pin 11 for a running fit with the movable block 9 is provided on the outer side wall of the intermediate ring plate 3; and the movable block 9 is provided with a second pin shaft 13 which is used for being movably matched with the baffle 12. In an alternative embodiment, the first pin 11 is fixedly connected with the middle ring plate 3, and the first pin 11 is in running fit with the movable block 9; the second pin shaft 13 is fixedly connected with the baffle 12, and the second pin shaft 13 is movably matched with the movable block 9.

Furthermore, the movable block 9 of the present embodiment is sleeved on a limiting post 10 extending along the axial direction of the middle ring plate 3, and the movable block 9 and the limiting post 10 are in a rotation fit relationship, i.e. the movable block 9 can rotate around the limiting post 10. For the limiting column 10, a pair of limiting parts 8 which are suitable for being in plug-in fit with the limiting column 10 are respectively arranged on the outer side walls of the upper filtering shell 1 and the lower filtering shell 2; a limit groove for clamping and embedding the movable block 9 is formed between the pair of limit parts 8; here the movable block 9 is adapted to rotate in the limit groove synchronously around the limit post 10 in connection with the stop plate 12. By adopting the structure, the middle annular plate 3 of the integral filter screen 14 assembly can synchronously rotate along with the rotation of the movable block 9 relative to the limit column 10, so that the middle environment protection can leave between the upper filter housing 1 and the lower filter housing 2.

In the above-mentioned case, it should be further noted that each of the limiting portions 8 is provided with a fitting hole 19 adapted to be penetrated by the limiting post 10; the matching hole 19 is matched with the limit post 10 in a key hole. Regarding the keyhole fitting here, a protrusion 18 may be formed on the outer side wall of the stopper post 10, and a recess of the fitting protrusion may be formed on the inner wall of the fitting hole 19; it is also possible to form a recess in the outer side wall of the stopper post 10 and a protrusion to fit the recess in the inner wall of the stopper void. From there the mating hole 19 mates with the key hole of the spacing post 10 such that a secure fit is formed between the spacing post 10 and the mating hole 19 without relative rotation.

In a preferred embodiment, the upper filter housing 1 and the lower filter housing 2 are cylindrical structures, and the outer diameter and the inner diameter of the upper filter housing 1 and the lower filter housing 2 are the same; and the outer diameter of the intermediate ring plate 3 is not greater than the outer diameters of the upper and lower filter housings 1 and 2, and the inner diameter of the intermediate ring plate 3 is equal to the inner diameters of the upper and lower filter housings 1 and 2. This structure can satisfy both the rotation requirement of the intermediate ring plate 3 with respect to the upper filter housing 1 and the lower filter housing 2 and the filter main body for purifying the solvent by the intermediate ring plate 3 combined together with the upper filter housing 1 and the lower filter housing 2.

Furthermore, in order to facilitate the assembly and fixation of the limiting post 10 and the limiting portion 8, the limiting post 10 is respectively sleeved with a limiting nut 20 at two ends extending out of the pair of limiting portions 8.

It should be noted that, in the present embodiment, the rotation state of the movable block 9 with respect to the stopper post 10 is switched by the following structure:

firstly, the outer side wall of the limit part 8 is rectangular; the baffle 12 is rectangular; and the dimension of the baffle 12 in the width direction is not larger than the width of the limit groove along the axial direction of the middle annular plate 3; when the middle ring plate 3 is clamped and embedded between the upper filter shell 1 and the lower filter shell 2, the length direction of the baffle 12 is suitable for extending along the axial direction of the limit column 10; when the length direction of the baffle 12 is perpendicular to the axial direction of the limit post 10, the baffle 12 is adapted to perform a rotational movement around the limit post 10 together with the movable block 9. That is, when the position state of the baffle 12 relative to the limit portion 8 is adjusted, the state of the movable block 9 relative to the limit post 10 can be controlled, that is, only when the length direction of the baffle 12 is perpendicular to the axial direction of the limit post 10, the movable block 9 can rotate relative to the limit post 10, so that the unexpected rotation of the movable block 9 relative to the limit post 10, which is caused by the unexpected rotation of the middle ring relative to the upper filter housing 1, can be avoided by controlling the position states of the length direction of the baffle 12 and the axial direction of the limit post 10.

To sum up, for the filter for purifying solvent in this embodiment, the length direction of the baffle 12 can be changed from the vertical state to the horizontal state relative to the axial direction of the limit post 10, and then the intermediate ring plate 3 is rotated relative to the upper filter housing 1 to leave the upper filter housing 1 and the upper filter housing 1 through the rotating connection of the movable block 9 and the limit post 10, and the intermediate ring plate 3 can be rotated by 90 ° relative to the movable block 9 through the rotating fit of the intermediate ring plate 3 and the movable block 9, so that impurities on the filter screen 14 can be cleaned quickly, a good anti-blocking effect is achieved, and the filtering efficiency of the solvent is improved.

The foregoing embodiments have been provided for the purpose of illustrating the general principles of the present utility model, and are more fully described herein with reference to the accompanying drawings, in which the principles of the present utility model are shown and described, and in which the general principles of the utility model are defined by the appended claims.

In the description of the present utility model, it should be understood that the terms "orientation" or "positional relationship" are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, rather than to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature may include first and second features directly contacting each other, either above or below a second feature, or through additional features contacting each other, rather than directly contacting each other. Moreover, the first feature being above, over, and on the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being below, beneath, and beneath the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is less level than the second feature.

Claims (10)

1. A filter for solvent purification, comprising: the filter comprises an upper filter shell, a lower filter shell and a filter assembly movably arranged between the upper filter shell and the lower filter shell; wherein the method comprises the steps of

The filter assembly comprises a circular middle annular plate, a filter screen, a movable block and a baffle, wherein the circular middle annular plate is suitable for being clamped and embedded between the upper filter shell and the lower filter shell, the filter screen is arranged on the middle annular plate, the movable block is rotationally connected with the outer side wall of the middle annular plate, and the baffle is rotationally connected with one end, far away from the middle annular plate, of the movable block;

the movable block is sleeved on a limit column extending along the axial direction of the middle annular plate; and

a pair of limiting parts which are suitable for being in plug-in fit with the limiting columns are respectively arranged on the outer side walls of the upper filtering shell and the lower filtering shell; a limiting groove for clamping and embedding the movable block is formed between the pair of limiting parts;

the movable block is suitable for rotating around the limit column in the limit groove together with the baffle plate.

2. The filter for purifying a solvent according to claim 1, wherein the outer side wall of the intermediate ring plate is provided with a first pin shaft for rotating fit with the movable block; and

the movable block is provided with a second pin shaft which is used for being movably matched with the baffle.

3. The filter for solvent purification according to claim 2, wherein each of the limiting portions is provided therein with a fitting hole adapted to be penetrated by a limiting post;

and the matching hole is matched with the limit column through a key hole.

4. A filter for purifying a solvent according to claim 3, wherein the stopper posts are respectively fitted with a stopper nut at both end portions protruding from the pair of stopper portions.

5. The filter for purifying a solvent according to any one of claims 1 to 4, wherein an outer side wall of the stopper portion is rectangular; the baffle is rectangular; and

the size of the baffle in the width direction is not larger than the width of the limit groove along the axial direction of the middle annular plate;

when the middle ring plate is clamped and embedded between the upper filtering shell and the lower filtering shell, the length direction of the baffle plate is suitable for extending along the axial direction of the limiting column;

when the length direction of the baffle is perpendicular to the axial direction of the limit post, the baffle is suitable for rotating around the limit post along with the movable block.

6. The filter for solvent purification according to claim 5, wherein the upper and lower filter housings are each cylindrical structures; and

the outer diameter of the middle ring plate is not larger than the outer diameters of the upper filter shell and the lower filter shell.

7. The filter for solvent purification according to claim 1, wherein an end of the lower filter housing facing away from the upper filter housing is provided with a water outlet cover; and the water outlet cover is connected with a water outlet pipe in a matching way.

8. The filter for purifying a solvent according to claim 7, wherein the water outlet cover is provided with a ring-shaped connection ring with threads; and

the lower filtering shell is provided with a thread matching groove which is connected with the thread of the connecting ring.

9. The filter for solvent purification according to claim 1 or 7 or 8, wherein the end of the upper filter housing facing away from the lower filter housing is provided with a water inlet cap; and the water inlet cover is connected with a liquid inlet funnel in a matching way.

10. The filter for solvent purification according to claim 9, wherein the water inlet cover is provided with a ring-shaped threaded engagement ring; and

the upper filter shell is provided with a thread groove which is connected with the thread of the adapter ring.