Dual-purpose water and air filter

Abstract

The utility model discloses a water and gas dual -purpose filter, include: integrated shell, be equipped with first cavity and second cavity in the shell, first filter core subassembly, first filter core subassembly is located in the first cavity, and the bottom of first cavity is equipped with water outlet chamber and first blowdown chamber, second filter core subassembly, second filter core subassembly is located in the second cavity, and the bottom of second cavity is equipped with air outlet chamber and second blowdown chamber, first top, first top is located at the top opening of first cavity, and first top is detachably fixed with shell Connection, second top, second top is located at the top opening of second cavity, and second top is detachably fixed with shell Connection, and the shell is equipped with water inlet, water outlet, first blowdown, air inlet, air outlet and second blowdown respectively, and water inlet is linked together with water outlet chamber through first filter core subassembly, and air inlet is linked together with air outlet chamber through second filter core subassembly, and the first top and second top are arranged at the top, and the filter core is replaced conveniently.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, and in particular to a water-air dual-purpose filter. Background Technology

[0002] Dental chair systems typically utilize water and compressed air. Water is used for rinsing and cleaning the mouth, while compressed air powers high-speed dental drills and removes foreign objects from the oral cavity. To ensure the cleanliness of both water and compressed air, dental chair systems usually require two filters: one for filtering compressed air and the other for filtering water. However, these filters typically need periodic replacement. Replacement involves disassembling both filter housings, removing the old filter, installing the new filter, and repositioning them, which is time-consuming. Furthermore, the filters may be installed in different locations within the dental chair system, further increasing the time and labor intensity of filter replacement. Therefore, improvements are necessary. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings and deficiencies of the existing technology by providing a water-air dual-purpose filter. This filter has a simple and reasonable structure and is easy to operate. A first top cover and a second top cover are detachably installed on the top of the filter, making it easy to disassemble and assemble. When the user needs to replace the first filter element, they only need to unscrew the first top cover to remove and replace it; when the user needs to replace the second filter element, they only need to unscrew the second top cover to remove and replace it, without needing to disassemble the entire outer shell, making operation more convenient.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: The present invention provides a water-air dual-purpose filter, comprising: An integrated housing, wherein a first cavity and a second cavity are independently provided inside the housing; The first filter element assembly is detachably disposed in the first cavity, and the bottom of the first cavity is independently provided with a water outlet cavity and a first sewage discharge cavity. The second filter element assembly is detachably disposed in the second cavity, and the bottom of the second cavity is independently provided with an air outlet cavity and a sewage discharge cavity. A first top cover is located at the top opening of the first cavity, and the first top cover is detachably fixedly connected to the outer shell; The second top cover is located at the top opening of the second cavity and is detachably fixed to the outer shell; The outer shell is respectively provided with a water inlet communicating with the first cavity, a water outlet communicating with the water outlet cavity, a first sewage outlet communicating with the first sewage outlet cavity, an air inlet communicating with the second cavity, an air outlet communicating with the air outlet cavity, and a second sewage outlet communicating with the second sewage outlet cavity. The water inlet is connected to the water outlet cavity through a first filter element assembly, and the air inlet is connected to the air outlet cavity through a second filter element assembly.

[0005] Furthermore, both the first and second top covers are made of transparent material.

[0006] Furthermore, the outer casing is provided with a first mounting base for installing the first filter element assembly. The first mounting base is provided with a water passage hole. The first filter element assembly includes a first connecting screw, a first cyclone blade, and a first filter element. The first connecting screw is fixedly connected to the first mounting base. The first cyclone blade is connected to the first filter element. The first filter element is sleeved and fitted outside the first connecting screw. A first filtration chamber is provided between the first filter element and the first connecting screw. The water inlet is connected to the water outlet chamber through the first filtration chamber and the water passage hole.

[0007] Furthermore, the first filter element assembly also includes a first pressure cap, which is fixedly connected to a first connecting screw. The first cyclone blade is clamped between the first pressure cap and the first filter element. The first mounting base is provided with a first connecting hole, and the first connecting screw is fixedly connected to the first connecting hole.

[0008] Furthermore, the outer casing is provided with a second mounting base for installing the second filter element assembly. The second mounting base is provided with a vent hole. The second filter element assembly includes a second connecting screw, a second cyclone blade, a second filter element, and a water-blocking sleeve. The second connecting screw is fixedly connected to the second mounting base. The second cyclone blade is connected to the second filter element. The water-blocking sleeve is sleeved outside the second connecting screw. The second filter element is sleeved outside the water-blocking sleeve. A second filtration chamber is provided between the second filter element sleeve and the second connecting screw. A water-blocking cavity is provided between the water-blocking sleeve and the second connecting screw. The air inlet is connected to the water outlet cavity through the second filtration cavity, the water-blocking cavity, and the vent hole.

[0009] Furthermore, the second filter element assembly also includes a second pressure cap, which is fixedly connected to a second connecting screw. The second cyclone blade is clamped between the second pressure cap and the second filter element. The second mounting base is provided with a second connecting hole, and the second connecting screw is fixedly connected to the second connecting hole.

[0010] Furthermore, the bottom of the water-blocking sleeve is provided with a stepped portion, and the second filter element is pressed onto the stepped portion by the second pressure cap.

[0011] Furthermore, the first sewage discharge chamber is located outside the water outlet chamber, and the second sewage discharge chamber is located outside the air outlet chamber.

[0012] Furthermore, the first mounting base is provided with a limiting step that cooperates with the limiting of the first filter element.

[0013] Furthermore, a first sealing ring is provided between the first top cover and the outer shell, and a second sealing ring is provided between the second top cover and the outer shell.

[0014] The beneficial effects of this utility model are as follows: The water-air dual-purpose filter of this utility model has two filters sharing a single outer shell, resulting in a more compact structure. The outer shell independently houses a first chamber and a second chamber. The first chamber contains a first filter element assembly for filtering water, and the second chamber contains a second filter element assembly for filtering compressed air. A first top cover is detachably mounted at the top opening of both the first and second chambers. Conventional filters typically employ a bottom-disassembly design. After installation in dental equipment, replacing the filter requires disassembling the entire outer shell to access the filter element from the bottom, which is cumbersome. The water-air dual-purpose filter of this utility model, with its detachable first and second top covers, is easy to install and remove. When the user needs to replace the first filter element, simply unscrew the first top cover to remove it; similarly, when the user needs to replace the second filter element, simply unscrew the second top cover to remove it, eliminating the need to disassemble the entire outer shell and making operation more convenient. Attached Figure Description

[0015] Figure 1 This is a cross-sectional structural diagram of the present invention from a first-view perspective; Figure 2 This is a structural diagram of the second top cover of this utility model during disassembly; Figure 3 This is a partial sectional view of the present invention; Figure 4 This is a cross-sectional structural diagram of the present invention from a second perspective; Figure 5 This is an exploded structural diagram of the present invention; Figure 6 This is a schematic diagram of the structure of this utility model.

[0016] Figures 1-6In the middle: 1. Outer shell; 11. First cavity; 111. Water inlet; 12. Second cavity; 121. Air inlet; 13. Water outlet cavity; 131. Water outlet; 14. First drain cavity; 141. First drain outlet; 15. Air outlet cavity; 151. Air outlet; 16. Second drain cavity; 161. Second drain outlet; 2. First top cover; 21. First sealing ring; 3. Second top cover; 31. Second sealing ring; 4. First mounting base; 41. Water passage hole; 4 2. First connecting hole; 43. Limiting step; 51. First connecting screw; 52. First cyclone blade; 53. First filter element; 531. First filter chamber; 54. First pressure cap; 6. Second mounting base; 61. Vent hole; 62. Second connecting hole; 71. Second connecting screw; 72. Second cyclone blade; 73. Second filter element; 731. Second filter chamber; 74. Water-blocking sleeve; 741. Water-blocking cavity; 742. Step portion; 75. Second pressure cap. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] like Figures 1-6 The water-air dual-purpose filter includes: an integral housing 1, wherein a first cavity 11 and a second cavity 12 are independently provided inside the housing 1, sharing a single housing 1, making the structure more compact.

[0019] The first filter element assembly is detachably disposed in the first cavity 11. The bottom of the first cavity 11 is independently provided with a water outlet cavity 13 and a first sewage discharge cavity 14. In this embodiment, the first sewage discharge cavity 14 is located outside the water outlet cavity 13.

[0020] The second filter element assembly is detachably disposed in the second cavity 12. The bottom of the second cavity 12 is independently provided with an air outlet cavity 15 and a sewage discharge cavity 16. In this embodiment, the second sewage discharge cavity 16 is located outside the air outlet cavity 15.

[0021] refer to Figure 5 The outer shell 1 is provided with an inlet 111 communicating with the first cavity 11, an outlet 131 communicating with the outlet cavity 13, a first drain outlet 141 communicating with the first drain cavity 14, an air inlet 121 communicating with the second cavity 12, an air outlet 151 communicating with the air outlet cavity 15, and a second drain outlet 161 communicating with the second drain cavity 16. The inlet 111 is connected to the outlet cavity 13 through the first filter element assembly, and the air inlet 121 is connected to the air outlet cavity 15 through the second filter element assembly.

[0022] refer to Figure 1 , Figure 2 , Figure 4 and Figure 5The first top cover 2 is located at the top opening of the first cavity 11 to prevent external impurities and dust from entering. The first top cover 2 is detachably fixed to the outer shell 1. In this embodiment, the first top cover 2 is detachably fixed to the top opening of the first cavity 11 by means of threads. The outer side wall of the first top cover 2 is provided with a first external thread, and the top opening of the first cavity 11 is provided with a first internal thread that matches the first external thread. In other embodiments, the detachable fixed connection can also be achieved by means of buckles or the like.

[0023] Preferably, in this embodiment, a first sealing ring 21 is provided between the first top cover 2 and the outer shell 1, which can effectively play a sealing role and prevent fluid medium leakage.

[0024] The second top cover 3 is located at the top opening of the second cavity 12 to prevent external impurities and dust from entering. The second top cover 3 is detachably fixed to the outer shell 1. In this embodiment, the second top cover 3 is detachably fixed to the top opening of the second cavity 12 by means of threads. The outer side wall of the second top cover 3 is provided with a second external thread, and the top opening of the second cavity 12 is provided with a second internal thread that matches the second external thread. In other embodiments, the detachable fixed connection can also be achieved by means of buckles or the like.

[0025] Preferably, in this embodiment, a second sealing ring 31 is provided between the second top cover 3 and the outer shell 1, which can effectively play a sealing role and prevent fluid medium leakage.

[0026] Conventional filters typically employ a bottom-removal design. After installation in dental equipment, replacing the filter cartridge requires disassembling the entire outer casing 1 of the device, making the process cumbersome. This invention, a dual-purpose water / air filter, features a detachable first top cover 2 and a second top cover 3 on the top, facilitating easy assembly and disassembly. When the user needs to replace the first filter cartridge 53, they simply unscrew the first top cover 2 to remove it; similarly, when replacing the second filter cartridge 73, they only need to unscrew the second top cover 3, eliminating the need to disassemble the entire outer casing 1, thus making operation more convenient.

[0027] Preferably, in this embodiment, both the first top cover 2 and the second top cover 3 are made of transparent material to achieve visualization, allowing users to observe the status of the filter element so that they can replace the filter element in a timely manner.

[0028] Preferably, in this embodiment, the reference Figure 1The outer casing 1 is provided with a first mounting base 4 for installing a first filter element assembly. The first mounting base 4 is provided with a first connecting hole 42 and a water passage hole 41. The water passage hole 41 is arranged along the circumferential direction of the first connecting hole 42. The first filter element assembly includes a first pressure cap 54, a first connecting screw 51, a first cyclone blade 52, and a first filter element 53. The lower end of the first connecting screw 51 is threaded into the first connecting hole 42. The first cyclone blade 52 is connected to the first filter element 53. The first filter element 53 is arranged in a sleeve shape. The core 53 is sleeved on the outside of the first connecting screw 51. The first pressure cover 54 is threaded to the first connecting screw 51. The first cyclone blade 52 is located between the first pressure cover 54 and the first filter element 53. The first pressure cover 54 and the first connecting screw 51 cooperate to clamp the first cyclone blade 52 and the first filter element 53, ensuring a stable and reliable connection. A first filter chamber 531 is provided between the first filter element 53 and the first connecting screw 51. The water flow at the inlet 111 is connected to the outlet chamber 13 through the first filter chamber 531 and the water passage 41.

[0029] Preferably, in this embodiment, the outer casing 1 is provided with a second mounting base 6 for installing the second filter element assembly. The second mounting base 6 is provided with a second connecting hole 62 and a vent hole 61. The vent hole 61 is arranged along the circumferential direction of the second connecting hole 62. The second filter element assembly includes a second pressure cap 75, a second connecting screw 71, a second cyclone blade 72, a second filter element 73, and a water-blocking sleeve 74. The lower end of the second connecting screw 71 is threaded into the second connecting hole 62. The second cyclone blade 72 is connected to the second filter element 73. The water-blocking sleeve 74 is sleeved on the outside of the second connecting screw 71. The second filter element 73... The system is arranged in a sleeve shape. The second filter element 73 is sleeved on the outside of the water-blocking sleeve 74. The second cyclone blade 72 is located between the second pressure cover 75 and the second filter element 73. The second pressure cover 75 and the second connecting screw 71 cooperate to clamp the second cyclone blade 72 and the second filter element 73 to ensure a stable and reliable connection. A second filter chamber 731 is provided between the second filter element 73 and the second connecting screw 71. A water-blocking cavity 741 is provided between the water-blocking sleeve 74 and the second connecting screw 71. The compressed gas at the air inlet 121 is connected to the water outlet cavity 13 through the second filter chamber 731, the water-blocking cavity 741, and the vent 61.

[0030] Preferably, in this embodiment, the reference Figure 1 The bottom of the water-blocking sleeve 74 is provided with a stepped portion 742. The second filter element 73 is pressed onto the stepped portion 742 by the second pressure cap 75. The second filter element 73 acts on the stepped portion 742 to fix the water-blocking sleeve 74 and ensure a stable and reliable connection.

[0031] Preferably, in this embodiment, the reference Figure 1 and Figure 4The first mounting base 4 is provided with a limiting step 43 that cooperates with the limiting step of the first filter element 53 to restrict the movement of the first filter element 53.

[0032] The water-air dual-purpose filter described in this invention can filter compressed air and water in a dental chair system to remove impurities and ensure the cleanliness of the water and compressed air.

[0033] The working principle of this utility model is as follows: Water flows into the first cavity 11 through the inlet 111 and flows through the first cyclone blade 52. The first cyclone blade 52 rotates, and under the action of centrifugal force, the solid particles mixed in the water are thrown to the peripheral wall of the first cavity 11. Under the action of gravity, they settle along the wall into the first sewage discharge chamber 14 and are discharged from the first sewage discharge port 141. The centrifuged water then passes through the first filter element 53 for further filtration, and the clean water flows into the outlet 131 through the outlet chamber 13.

[0034] Compressed air enters the second cavity 12 through the air inlet 121 and flows through the second cyclone blade 72. As the second cyclone blade 72 rotates, under the action of centrifugal force, impurities and liquid wastewater mixed in the compressed air are thrown to the peripheral wall of the second cavity 12. Under the action of gravity, they settle along the wall into the second drain chamber 16 and are discharged from the second drain port 161. The centrifuged compressed air is further filtered through the second filter element 73. The second filter element 73 is also equipped with a water-blocking sleeve 74 to prevent the separated liquid water from entering the air outlet 151. Finally, the clean compressed air flows into the air outlet 151 through the air outlet chamber 15.

[0035] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A water-air dual-purpose filter, characterized in that, include: An integrated housing (1) has a first cavity (11) and a second cavity (12) independently provided inside the housing (1); The first filter element assembly is detachably disposed in the first cavity (11), and the bottom of the first cavity (11) is independently provided with a water outlet cavity (13) and a first sewage discharge cavity (14). The second filter element assembly is detachably disposed in the second cavity (12), and the bottom of the second cavity (12) is independently provided with an air outlet cavity (15) and a sewage discharge cavity (16). The first top cover (2) is located at the top opening of the first cavity (11) and is detachably fixed to the outer shell (1). The second top cover (3) is located at the top opening of the second cavity (12) and is detachably fixed to the outer shell (1); The outer shell (1) is respectively provided with an inlet (111) communicating with the first cavity (11), an outlet (131) communicating with the outlet cavity (13), a first drain outlet (141) communicating with the first drain cavity (14), an air inlet (121) communicating with the second cavity (12), an air outlet (151) communicating with the air outlet cavity (15), and a second drain outlet (161) communicating with the second drain cavity (16). The inlet (111) is connected to the outlet cavity (13) through the first filter element assembly, and the air inlet (121) is connected to the air outlet cavity (15) through the second filter element assembly.

2. The water-air dual-purpose filter according to claim 1, characterized in that: Both the first top cover (2) and the second top cover (3) are made of transparent material.

3. A water-air dual-purpose filter according to claim 1, characterized in that: The outer casing (1) is provided with a first mounting base (4) for installing the first filter element assembly. The first mounting base (4) is provided with a water passage hole (41). The first filter element assembly includes a first connecting screw (51), a first cyclone blade (52) and a first filter element (53). The first connecting screw (51) is fixedly connected to the first mounting base (4). The first cyclone blade (52) is connected to the first filter element (53). The first filter element (53) is provided in a sleeve shape. The first filter element (53) is sleeved on the outside of the first connecting screw (51). A first filter chamber (531) is provided between the first filter element (53) and the first connecting screw (51). The water inlet (111) is connected to the water outlet chamber (13) through the first filter chamber (531) and the water passage hole (41).

4. A water-air dual-purpose filter according to claim 3, characterized in that: The first filter element assembly also includes a first pressure cap (54), which is fixedly connected to a first connecting screw (51). The first cyclone blade (52) is clamped between the first pressure cap (54) and the first filter element (53). The first mounting base (4) is provided with a first connecting hole (42), and the first connecting screw (51) is fixedly connected to the first connecting hole (42).

5. A water-air dual-purpose filter according to claim 1, characterized in that: The outer casing (1) is provided with a second mounting base (6) for installing the second filter element assembly. The second mounting base (6) has a vent hole (61). The second filter element assembly includes a second connecting screw (71), a second cyclone blade (72), a second filter element (73), and a water-blocking sleeve (74). The second connecting screw (71) is fixedly connected to the second mounting base (6), the second cyclone blade (72) is connected to the second filter element (73), and the water-blocking sleeve (74) is sleeved on the second connecting screw (71). The second filter element (73) is sleeve-shaped and sleeved on the outside of the water-blocking sleeve (74). A second filter chamber (731) is provided between the second filter element (73) and the second connecting screw (71). A water-blocking cavity (741) is provided between the water-blocking sleeve (74) and the second connecting screw (71). The air inlet (121) is connected to the water outlet cavity (13) through the second filter chamber (731), the water-blocking cavity (741), and the air vent (61).

6. A water-air dual-purpose filter according to claim 5, characterized in that: The second filter element assembly also includes a second pressure cap (75), which is fixedly connected to a second connecting screw (71). The second cyclone blade (72) is clamped between the second pressure cap (75) and the second filter element (73). A second connecting hole (62) is provided on the second mounting base (6), and the second connecting screw (71) is fixedly connected to the second connecting hole (62).

7. A water-air dual-purpose filter according to claim 6, characterized in that: The bottom of the water-blocking sleeve (74) is provided with a stepped portion (742), and the second filter element (73) is pressed onto the stepped portion (742) by the second pressure cap (75).

8. A water-air dual-purpose filter according to claim 1, characterized in that: The first sewage discharge chamber (14) is located outside the water outlet chamber (13), and the second sewage discharge chamber (16) is located outside the air outlet chamber (15).

9. A water-air dual-purpose filter according to claim 3, characterized in that: The first mounting base (4) is provided with a limiting step (43) that cooperates with the limiting of the first filter element (53).

10. A water-air dual-purpose filter according to claim 1, characterized in that: A first sealing ring (21) is provided between the first top cover (2) and the outer shell (1), and a second sealing ring (31) is provided between the second top cover (3) and the outer shell (1).

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