Anti-blocking air filter and sparkling water machine

Abstract

The utility model relates to an anti-blocking air filter and a sparkling water machine, the anti-blocking air filter comprises a shell, a filter screen, a guide post, an elastic piece, a sealing piece and a cover body, the shell is provided with a first cavity, an air outlet pipe and a main air inlet channel; a second cavity is formed in the filter screen, the guide column is provided with a third cavity and located in the second cavity of the filter screen, an auxiliary air inlet channel communicated with the first cavity of the shell is formed in the side wall of the guide column, the elastic piece is telescopically arranged in the third cavity of the guide column in a sleeved mode, and the sealing piece is arranged in the third cavity of the guide column and moves back and forth along with stretching of the elastic piece. The sealing piece is provided with a plug part, and the cover body is provided with a through hole communicated with the air inlet end of the third cavity. When the filter screen is blocked, negative pressure generated in the air filter sucks the sealing part to move in the third cavity of the guide column, the plug part of the sealing part does not plug the through hole of the cover body any more, external air enters the guide column through the through hole, flows to the first cavity of the shell through the auxiliary air inlet channel of the guide column and finally flows out through the air outlet pipe, and the anti-blocking effect is achieved.

Description

Technical Field

[0001] The utility model relates to the field of bubble water machines, in particular to an anti-blocking air filter and a bubble water machine. Background Art

[0002] The bubble water machine is a machine for making bubble water, and the air filter is one of the key devices of the bubble water machine. When the bubble water machine produces bubbles during operation, it needs to introduce air through the air filter and make the air filtered by the air filter fully mixed with the water flowing through, thereby producing bubble water.

[0003] However, the air filter of the existing bubble water machine has shortcomings: there is no dirt collection area on the air filter, and the particles introduced into the bubble water machine are easy to clog the air filter, affecting the effect of producing bubble water. Utility Model Content

[0004] The first technical problem to be solved by the utility model is to provide an anti-clogging air filter which can automatically prevent clogging in view of the above-mentioned prior art.

[0005] The second technical problem to be solved by the utility model is to provide a bubble water machine using the above-mentioned anti-blocking air filter.

[0006] The third technical problem to be solved by the present invention is to provide another bubble water machine using the above-mentioned anti-blocking air filter.

[0007] The technical solution adopted by the utility model to solve the first technical problem is: an anti-blocking air filter, comprising:

[0008] The shell has a first cavity and an air outlet pipe connected to the first cavity, and a main air inlet channel connected to the first cavity is formed on the side wall of the shell;

[0009] It is characterized by further comprising:

[0010] A filter screen is located in the first cavity of the housing and is disposed close to the main air inlet passage, and the filter screen forms a second cavity that is in communication with the first cavity of the housing;

[0011] A guide column is located in the second cavity of the filter screen, the guide column has a third cavity and an air inlet end and an air outlet end respectively connected to the third cavity, the air outlet end of the third cavity is connected to the air outlet pipe of the shell, and a secondary air inlet channel connected to the third cavity is formed on the side wall of the guide column, and the secondary air inlet channel is connected to the first cavity of the shell;

[0012] An elastic member is elastically and telescopically sleeved in the third cavity of the guide column;

[0013] A sealing member is disposed between the elastic member and the air inlet end of the third cavity and is arranged in the third cavity of the guide column and moves back and forth as the elastic member expands and contracts. The sealing member has a plugging portion that cooperates to seal the air inlet end of the third cavity;

[0014] The cover body is tightly matched with the shell to form a packaging space for accommodating the filter screen and the guide column; wherein the cover body has a through hole connected to the air inlet end of the third cavity.

[0015] As an improvement, in the anti-blocking air filter, a plurality of folded filter units are formed on the filter screen along the circumference of the second cavity.

[0016] As a further improvement, in the anti-blocking air filter, the plugging portion of the sealing member is provided with a sealing ring, and the sealing ring is arranged between a side wall of the plugging portion and a side wall forming the through hole.

[0017] As an improvement, in the anti-blocking air filter, the main air inlet channel is formed by a plurality of main air inlet holes connected to the first cavity.

[0018] Furthermore, in the anti-blocking air filter, the auxiliary air intake passage is formed by auxiliary air intake holes formed along the axial direction of the third cavity.

[0019] Preferably, in the anti-blocking air filter, the elastic member is a spring.

[0020] As an improvement, in the anti-blocking air filter, an accommodating cavity for accommodating a sealing member is formed in the third cavity of the guide column and close to the air inlet end of the third cavity.

[0021] As a further improvement, in the utility model, the anti-blocking air filter also includes a pressure sensing device for detecting the elastic force generated by the elastic member.

[0022] The technical solution adopted by the utility model to solve the second technical problem is: a bubble water machine, characterized in that it uses any one of the intelligent anti-blocking air filters described.

[0023] The technical solution adopted by the utility model to solve the third technical problem is: a bubble water machine, including a controller, characterized in that any of the above-mentioned anti-blocking air filters with a pressure sensing device is applied, and the pressure sensing device of the anti-blocking air filter is connected to the controller.

[0024] Compared with the prior art, the utility model has the advantages that: the air filter of the utility model is provided with a guide column, an elastic member, a sealing member and a cover body on the basis of the existing housing and filter screen, so that the housing is formed with a first cavity and a main air inlet channel, the filter screen is formed with a second cavity, the guide column has a third cavity and is located in the second cavity of the filter screen, a secondary air inlet channel connected to the first cavity of the housing is formed on the side wall of the guide column, the elastic member is telescopically sleeved in the third cavity of the guide column, the sealing member is arranged in the third cavity of the guide column to move back and forth with the expansion and contraction of the elastic member, the sealing member has a plugging part, and the cover body has a through hole connected to the air inlet end of the third cavity. Even if the filter screen is blocked, the negative pressure generated in the air filter attracts the sealing member to move in the third cavity of the guide column, the plugging part of the sealing member no longer blocks the through hole of the cover body, and the external air enters the guide column through the through hole, and flows to the first cavity of the housing through the secondary air inlet channel of the guide column, and finally flows out through the air outlet pipe, so as to achieve the anti-blocking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of the intelligent anti-blocking air filter in the embodiment of the utility model;

[0026] Figure 2 for Figure 1 A cross-sectional view of the anti-clogging air filter shown;

[0027] Figure 3 for Figure 1 Schematic diagram of the exploded structure of the anti-blocking air filter shown;

[0028] Figure 4 is a schematic diagram of the structure of the shell;

[0029] Figure 5 is a schematic diagram of the structure of the filter;

[0030] Figure 6 Schematic diagram of the structure of the guide column. DETAILED DESCRIPTION

[0031] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0032] This embodiment provides an anti-blocking air filter. Figures 1 to 3 As shown, the anti-blocking air filter of this embodiment includes a housing 1, a filter screen 2, a guide column 3, an elastic member 4, a sealing member 5 and a cover 6. Among them:

[0033] The housing 1 has a first cavity 10 and an air outlet pipe 11 connected to the first cavity 10. A main air inlet channel 12 connected to the first cavity 10 is formed on the side wall of the housing 1. The main air inlet channel 12 is formed by a plurality of main air inlet holes 120 connected to the first cavity 10. These main air inlet holes 120 can be designed into a rectangular shape or other feasible shapes as needed.

[0034] The filter screen 2 is located in the first cavity 10 of the housing 1 and is disposed close to the main air inlet passage 12, so that the air entering through the main air inlet passage 12 passes through the filter screen 2; the filter screen 2 forms a second cavity 20 that is in communication with the first cavity 10 of the housing 1;

[0035] The guide column 3 is located in the second cavity 20 of the filter screen 2. For example, the guide column 3 is fixed in the second cavity 20 by a snap-fit ​​structure. The guide column 3 has a third cavity 30 and an air inlet end 31 and an air outlet end 32 respectively connected to the third cavity 30. The air outlet end 32 of the third cavity 30 is connected to the air outlet pipe 11 of the housing 1. A secondary air inlet channel 33 connected to the third cavity 30 is formed on the side wall of the guide column 3. The secondary air inlet channel 33 is connected to the first cavity 10 of the housing 1. The secondary air inlet channel 33 is formed by a secondary air inlet hole 330 formed along the axial direction of the third cavity 30.

[0036] The elastic member 4 can be elastically and telescopically sleeved in the third cavity 30 of the guide column 3; wherein the elastic member 4 here is preferably a spring;

[0037] The sealing member 5 is disposed between the elastic member 4 and the air inlet end of the third cavity 30 and moves back and forth with the expansion and contraction of the elastic member 4 in the third cavity 30 of the guide column 3. The sealing member 5 has a plugging portion 51 that cooperates to seal the air inlet end 31 of the third cavity.

[0038] The cover 6 is fastened with the housing 1 through a threaded structure to form a packaging space for accommodating the filter 2 and the guide column 3; wherein the cover 6 has a through hole 60 connected to the air inlet end 31 of the third cavity. Of course, the elastic member 4 and the sealing member 5 are also located in the packaging space.

[0039] When the air filter of this embodiment is blocked and is insufficient to take in air from the main air inlet channel on the shell, the negative pressure generated in the air filter will suck the seal, causing the seal to move from the air inlet end toward the air outlet end in the third cavity of the guide column, and an air circulation channel is formed between the seal and the inner wall of the third cavity of the guide column. The seal compresses the elastic member to produce compression deformation, and then the plugging part of the seal no longer blocks the through hole of the cover body. The air outside the through hole of the cover body enters into the third cavity of the guide column through the through hole, and then flows to the first cavity of the shell through the auxiliary air inlet channel of the guide column, and finally flows out through the outlet pipe to meet the need of generating bubble water.

[0040] See also Figure 3 and Figure 5As described, in this embodiment, the filter screen 2 is formed with a plurality of folded filter units 21 formed along the circumference of the second cavity 20. By setting the structure of the filter screen in this way, the area of ​​air filtration can be effectively increased and the service life of the filter screen can be increased. Of course, the material of the filter screen 2 is polypropylene, and the filtering accuracy can be controlled by effectively stacking the material. The polypropylene material can effectively filter particulate matter in the gas and remove odors in the gas, thereby protecting the bubble water machine and improving the safety and reliability of water output.

[0041] In order to enhance the sealing effect of the plugging portion on the air inlet end of the third cavity, in this embodiment, the plugging portion 51 of the sealing member 5 is provided with a sealing ring 7 which is arranged between the side wall of the plugging portion 51 and the side wall forming the through hole 60 .

[0042] In order to increase the aperture of the secondary air inlet passage on the side wall of the guide column, in this embodiment, a receiving cavity 301 for receiving the sealing member 5 is formed in the third cavity 30 of the guide column 3 and near the third cavity air inlet end 31. The aperture of the third cavity 30 is larger than the radial dimension of the sealing member 5.

[0043] In order to detect the clogging state of the filter screen in the air filter, the anti-clogging air filter of this embodiment further includes a pressure sensor device 8 for detecting the elastic force generated by the elastic member 4. That is, as long as the pressure sensor device 8 detects pressure data, it means that the elastic member has been compressed and deformed, which means that the sealing member has moved, thereby indicating that the filter screen in the air filter has been clogged.

[0044] This embodiment also provides a bubble water machine. Specifically, the bubble water machine adopts the above-mentioned anti-blocking air filter.

[0045] In addition, this embodiment also provides another kind of bubble water machine. The bubble water machine includes a controller, and the bubble water machine uses the above-mentioned anti-blocking air filter with a pressure sensor device, and the pressure sensor device of the anti-blocking air filter is connected to the controller. In this way, the pressure sensor device on the anti-blocking air filter can send the detected pressure data to the controller, and then the controller makes a filter blockage state judgment based on the pressure data, and then executes the next countermeasure.

[0046] Although the preferred embodiments of the present invention are described in detail above, it should be clearly understood that the present invention may be modified and varied by those skilled in the art. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Anti-blocking air filter, including: A housing (1) having a first cavity (10) and an air outlet pipe (11) connected to the first cavity (10); a main air inlet passage (12) connected to the first cavity (10) is formed on a side wall of the housing (1); It is characterized by further comprising: A filter screen (2) is located in the first cavity (10) of the housing (1) and is disposed close to the main air inlet passage (12), and the filter screen (2) forms a second cavity (20) that is in communication with the first cavity (10) of the housing (1); A guide column (3) is located in the second cavity (20) of the filter screen (2), the guide column (3) having a third cavity (30) and an air inlet end (31) and an air outlet end (32) respectively connected to the third cavity (30), the air outlet end (32) of the third cavity (30) being connected to the air outlet pipe (11) of the shell (1), and a secondary air inlet channel (33) connected to the third cavity (30) being formed on the side wall of the guide column (3), the secondary air inlet channel (33) being connected to the first cavity (10) of the shell (1); An elastic member (4) is elastically and telescopically sleeved in the third cavity (30) of the guide column (3); A sealing member (5) is disposed between the elastic member (4) and the air inlet end of the third cavity (30) and is arranged in the third cavity (30) of the guide column (3) so as to move back and forth as the elastic member (4) contracts. The sealing member (5) has a plugging portion (51) that cooperates to seal the air inlet end (31) of the third cavity; The cover body (6) is tightly matched with the shell (1) to form a packaging space for accommodating the filter screen (2) and the guide column (3); wherein the cover body (6) has a through hole (60) connected to the air inlet end (31) of the third cavity.

2. The anti-blocking air filter according to claim 1, characterized in that: The filter screen (2) is provided with a plurality of folded filter units (21) formed along the circumference of the second cavity (20).

3. The anti-blocking air filter according to claim 1, characterized in that: The plugging portion (51) of the sealing member (5) is provided with a sealing ring (7), and the sealing ring (7) is arranged between the side wall of the plugging portion (51) and the side wall forming the through hole (60).

4. The anti-blocking air filter according to claim 1, characterized in that: The main air intake channel (12) is formed by a plurality of main air intake holes (120) connected to the first cavity (10).

5. The anti-blocking air filter according to claim 4, characterized in that: The auxiliary air intake passage (33) is formed by an auxiliary air intake hole (330) formed along the axial direction of the third cavity (30).

6. The anti-blocking air filter according to claim 1, characterized in that: The elastic member (4) is a spring.

7. The anti-clogging air filter according to any one of claims 1 to 6, characterized in that: A receiving cavity (301) for receiving a sealing member (5) is formed in the third cavity (30) of the guide column (3) and close to the air inlet end (31) of the third cavity.

8. The anti-clogging air filter according to any one of claims 1 to 6, characterized in that: It also includes a pressure sensing device (8) for detecting the elastic force generated by the elastic member (4).

9. A sparkling water machine, characterized in that: The anti-clogging air filter according to any one of claims 1 to 7 is used.

10. A sparkling water machine, comprising a controller, characterized in that: The anti-clogging air filter according to claim 8 is applied, and the pressure sensor device of the anti-clogging air filter is connected to a controller.

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