Air inlet filter

Abstract

The air inlet filter comprises a pipe body and a tubular filter screen, the pipe body is of a structure defined by at least two half pipes, the upper end of the pipe body is through, a plurality of air inlets communicated with an inner cavity of the pipe body are formed in the side wall of the pipe body, internal threads used for being connected with an air inlet of a faucet are arranged at the upper end of the pipe body, and a plurality of wiring holes are formed in the lower end of the pipe body. The filter screen is arranged in the pipe body in a sleeved mode and covers the air inlet, when a user needs to clean the filter screen, the filter screen can be taken out from the interior of the pipe body to be cleaned only by splitting the pipe body into two half pipes, the filter screen is installed again in the same way, the whole faucet does not need to be detached from the wash basin, cleaning operation of the filter screen is more convenient, and use is more convenient. The maintenance cost of the faucet is reduced.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, and in particular to an air inlet filter. Background Technology

[0002] A washbasin is a standard feature in any bathroom. Bathroom products that come with a washbasin include faucets and hand dryers. Faucets are essential and the most frequently used bathroom products. Traditionally, faucets and hand dryers are often distributed around the washbasin, requiring users to move between different devices, making the handwashing process less than smooth. To address this, faucets with built-in air blowers have been introduced to the market. These faucets combine water dispensing and drying functions. They typically have a built-in fan that draws in outside air and blows it out through the faucet's air outlet. To prevent debris from entering the fan through the faucet's pipes, most faucet pipes have integrated filters at the air inlet.

[0003] However, since these filters are integrated into the air inlet of the faucet, cleaning or replacing the filter requires removing the entire faucet from the sink, making the cleaning or replacement process cumbersome, time-consuming, and costly. Utility Model Content

[0004] In view of this, the present invention provides an air inlet filter to solve the problem that in the prior art, the filter screen is integrated at the air inlet of the faucet. If the filter screen is to be cleaned or replaced, the entire faucet needs to be removed from the sink, which makes the cleaning or replacement operation cumbersome, time-consuming and costly.

[0005] To achieve one or more of the above objectives or other objectives, this utility model proposes an air intake filter, including a tube body and a tubular filter screen. The tube body is a structure formed by at least two half-tubes with an open upper end. Several air inlets connected to its inner cavity are opened on its side wall. The upper end of the tube body is provided with an internal thread for connecting to the air inlet of a faucet. Several wiring holes are opened at the lower end of the tube body. The filter screen is sleeved in the tube body and covers the air inlets.

[0006] Preferably, a plurality of the air inlets are distributed in a grid pattern on the periphery of the pipe body.

[0007] Preferably, the lower end of the tube is open and is detachably fitted with a plug made of elastic material. The plug seals the lower end opening of the tube, and the wiring hole is opened on the plug.

[0008] Preferably, the air inlet filter further includes a bottom cover, the diameter of the plug gradually decreases from the bottom to the top, the lower end contour of the inner wall of the tube body is adapted to the plug, the lower end of the tube body is provided with external threads, the bottom cover is screwed onto the lower end of the tube body, the lower side wall of the bottom cover is provided with a wiring opening, and the plug is squeezed to make the plug fit tightly against the lower end of the inner side wall of the tube body.

[0009] Preferably, the diameter of the middle part of the inner cavity of the tube is larger than the diameter of its two ends, forming a receiving cavity, the air inlet is connected to the receiving cavity, and the filter screen is placed in the receiving cavity.

[0010] Preferably, the tube body is made of metal.

[0011] Preferably, the upper and lower ends of the half-tube are provided with through holes along their tangential direction, and a screw is fitted into the two opposing through holes of the half-tube, with a nut screwed onto the tip of the screw.

[0012] Preferably, one of the half-tubes has a strip-shaped locking block at its abutting surface, the locking block being arranged along the length of the abutting surface, and the other half-tube has a locking groove at its abutting surface with a contour adapted to the locking block. When the two half-tubes are closed together, the locking block is engaged in the locking groove.

[0013] Preferably, the filter screen is formed by two arc-shaped mesh panels.

[0014] Preferably, the upper inner wall of the tube body is provided with a raised edge below the internal thread, the raised edge is arranged circumferentially along the tube body, and a sealing ring is provided on the upper side wall of the raised edge.

[0015] Implementing the embodiments of this utility model will have the following beneficial effects:

[0016] After adopting the aforementioned air intake filter, during use, the upper end of the pipe is screwed to the air intake end of the faucet via an internal thread, so that the lower end of the faucet and the upper end of the pipe together clamp the sink countertop, fixing the faucet to the upper side of the sink countertop and the air intake filter to the lower side of the sink countertop. The wires for the sensor, fan, and mainboard, etc., located at the upper end of the faucet, can pass through the upper opening of the pipe and the inner cavity of the filter, and finally exit through the wiring hole to connect to the mains power. When the fan inside the faucet operates, external air will... The air flows through the inlet and filter, then through the tube into the faucet, and finally out through the fan from the faucet's outlet. The filter removes dust and impurities from the air, ensuring that the hot air used to dry hands is clean and hygienic. When users need to clean or replace the filter, they only need to split the tube into two halves to remove the filter from the inside of the tube for cleaning or replacement. The same applies when reinstalling, without having to remove the entire faucet from the sink. This makes cleaning or replacing the filter more convenient and reduces the faucet's maintenance costs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] in:

[0019] Figure 1 This is an exploded view of the present invention;

[0020] Figure 2 This is a perspective view of the present utility model;

[0021] Figure 3 This is a schematic diagram showing the connection between the air intake filter and the multi-functional faucet in this utility model.

[0022] In the diagram: 1. Pipe body; 11. Half pipe; 12. Air inlet; 13. Through hole; 14. Locking block; 15. Locking groove; 16. Raised edge; 2. Filter screen; 21. Arc-shaped mesh; 31. Faucet body; 32. Sensor; 33. Water outlet; 34. Liquid outlet; 35. Air outlet; 4. Plug; 41. Wiring hole; 5. Bottom cover; 51. Wiring port; 61. Screw; 62. Nut; 7. Sealing ring. Detailed Implementation

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a particular order.

[0024] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0025] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0026] like Figure 1-3 As shown, an air intake filter includes a pipe body 1 and a tubular filter screen 2. The pipe body 1 is a structure formed by at least two half-pipes 11, with the upper end open. Several air inlets 12 are provided on its side wall, connecting to its inner cavity. The upper end of the pipe body 1 has an internal thread for connecting to the air inlet of a faucet. The lower end of the pipe body 1 has several wiring holes 41. The filter screen 2 is fitted inside the pipe body 1 and covers the air inlets 12. In use, the upper end of the pipe body 1 is screwed to the air inlet of the faucet via the internal thread, so that the lower end of the faucet and the upper end of the pipe body 1 together clamp the countertop of the sink, fixing the faucet to the upper side of the sink countertop and fixing the air intake filter to the lower side of the sink countertop. The sensor 32, fan, and main board, etc., are located on the upper end of the faucet. The wire can pass through the upper opening of the tube body 1 and the inner cavity of the filter screen in sequence, and finally exit through the wiring hole 41 to connect to the mains power. When the fan inside the faucet is running, the outside air will flow through the air inlet 12 and the filter screen in sequence, and finally flow into the faucet through the tube body 1, and then flow out from the air outlet 35 of the faucet through the fan. Thus, the dust and impurities in the air are filtered through the filter screen 2 to ensure that the hot air used to dry hands is clean and hygienic. When the user needs to clean or replace the filter screen, simply split the tube body 1 into two half tubes 11, and the filter screen can be taken out from the inside of the tube body 1 for cleaning or replacement. The same applies when reinstalling, without having to remove the entire faucet from the sink, making the cleaning or replacement of the filter screen more convenient and reducing the maintenance cost of the faucet.

[0027] Specifically, the filter is a HEPA filter element; the contact surface of the half tube 11 refers to the inner plane of the half tube 11. When the two half tubes 11 surround each other, the two contact surfaces abut against each other; the wiring hole 41 can be partially set at the lower end of one half tube 11 and the other part set at the lower end of the other half tube 11, or it can be set entirely at the lower end of one half tube 11, or it can be entirely formed by the lower ends of the two half tubes 11 surrounding each other.

[0028] In one embodiment, the abutting surfaces of the two half-tubes 11 are fastened together by a snap-fit ​​structure (not shown in the attached drawings).

[0029] like Figure 3As shown, in one embodiment, the air inlet filter is used in conjunction with a multi-functional faucet. The multi-functional faucet includes a faucet body 31 and a sensor 32. The faucet body 31 is a hollow structure with a through bottom. A water outlet 33 is provided on the lower side wall of the upper end of the faucet body 31, a liquid outlet 34 is provided on the left side wall of the upper end of the faucet body 31, and an air outlet 35 is provided on the right side wall of the upper end of the faucet body 31. The liquid outlet 34 is inclined downwards, and its axis intersects the horizontal plane. The angle between the two is greater than 30 degrees and less than 45 degrees. In this embodiment, it is preferably 30 degrees, 45 degrees, or 60 degrees. The air outlet 35 and the liquid outlet 34 are symmetrical. A water supply pipe, a liquid supply pipe, and a fan (not shown in the figure) are respectively provided inside the faucet body 31. The upper end of the water supply pipe is connected to the water outlet 33, the upper end of the liquid supply pipe is connected to the liquid outlet 34, and the air outlet of the fan is connected to the air outlet 35. The sensor 32 is installed on the faucet body 31 and is used to control the liquid supply through the water supply pipe, the liquid supply pipe, and the fan pump. In use, the tube 1 is screwed onto the lower end of the faucet body 31. The wires of the water supply pipe, liquid supply pipe, and sensor 32 pass through the upper opening of the tube 1 and the inner cavity of the filter screen, and finally exit through the wiring hole 41 to connect to the corresponding external device. Taking the water outlet 33 as an example, the user can start the water pump connected to the water supply pipe through the sensor 32, so that the water pump pumps clean water to the water outlet 33 through the water supply pipe, so that the user can wash their hands with the clean water flowing from the water outlet 33. The liquid outlet 34 and the air outlet 35 are similar, thus integrating the hand sanitizer dispensing and drying functions on both sides of the faucet, so that the user can complete the foam washing, rinsing and drying of their hands at one faucet, avoiding the user having to move between different devices, making the hand washing process smoother and improving the user experience. At the same time, the downward tilted liquid outlet 34 is more conducive to controlling the horizontal stroke of the dispensed hand sanitizer, so that the hand sanitizer is dispensed to the user's upward palm, which is more in line with the usage habits of most users.

[0030] Furthermore, several air inlets 12 are distributed in a grid pattern around the periphery of the pipe body 1 so that outside air can enter the pipe body 1 from all sides, thereby improving ventilation efficiency.

[0031] Furthermore, the lower end of the pipe body 1 is open and detachably fitted with a plug 4 made of elastic material. The plug 4 seals the lower opening of the pipe body 1, and the wiring hole 41 is opened on the plug 4. In use, the number and size of the wiring holes 41 will be matched with the pipes of the internal accessories of the faucet so that the inner wall of the wiring hole 41 clamps the pipe and seals the gap between the wiring hole 41 and the pipe, so that outside air can only enter the inner cavity of the pipe body 1 through the air inlet 12, ensuring the filtration effect of the filter screen on the air.

[0032] Furthermore, the air intake filter also includes a bottom cover 5. The diameter of the plug 4 gradually decreases from the bottom to the top. The lower contour of the inner wall of the tube 1 is adapted to the plug 4. The lower end of the tube 1 is provided with external threads. The bottom cover 5 is screwed onto the lower end of the tube 1. A cable routing port 51 is opened on the lower side wall of the bottom cover 5. In use, the pipe inside the faucet passes through the cable routing hole 41 and the cable routing port 51 in sequence, which is equivalent to the pipe being fixedly sleeved on the plug 4. When the filter screen is cleaned and the half-tube 11 is reassembled, the upper end of the plug 4 is simply inserted back into the lower end of the tube 1, and then the bottom cover 5 is screwed onto the lower end of the tube 1. Then, the bottom cover 5 is tightened to squeeze the plug 4, so that the plug 4 fits tightly against the lower end of the inner wall of the tube 1. This ensures the sealing effect of the plug 4 on the lower opening of the tube 1, without the user having to insert the pipe into the cable routing hole 41 one by one again. This simplifies the reassembly process of the air intake filter and improves the user experience.

[0033] Furthermore, the diameter of the middle part of the inner cavity of the tube body 1 is larger than the diameter of its two ends, forming a receiving cavity. The air inlet 12 is connected to the receiving cavity, and the filter screen is placed in the receiving cavity.

[0034] Furthermore, the pipe body 1 is made of metal to improve the overall structural strength of the pipe body 1 and extend the service life of the air inlet filter.

[0035] Furthermore, through holes 13 are provided on both sides of the upper end and both sides of the lower end of the half tube 11 along its tangential direction. Screws 61 are fitted into the through holes 13 of the two half tubes 11. Nuts 62 are screwed to the tips of the screws 61. When assembling the tube body 1, the nuts 62 can be tightened, thereby pulling the screws 61 to make the contact surfaces of the two half tubes 11 fit tightly together. The two half tubes 11 are fixed by four sets of screws 61 and nuts 62, thereby improving the structural stability of the tube body 1.

[0036] Furthermore, one of the half-tubes 11 has a strip-shaped locking block 14 at its abutting surface, with the locking block 14 arranged along the length of the abutting surface. The other half-tube 11 has a locking groove 15 at its abutting surface with a contour that matches the locking block 14. When the two half-tubes 11 form a tube body 1, the locking block 14 is engaged in the locking groove 15 to restrict the movement of the two half-tubes 11 along the abutting surface, helping to position and align the two half-tubes 11, reducing the assembly difficulty of the two and improving the connection stability of the two.

[0037] Furthermore, the filter screen 2 is formed by two arc-shaped mesh panels 21, so that users can remove the arc-shaped mesh panel 21 with more accumulated dust for cleaning or replacement, making the cleaning or replacement of the filter screen 2 more flexible and helping to save filtration costs.

[0038] Furthermore, the upper inner wall of the pipe body 1 is provided with a raised edge 16 below the internal thread. The raised edge 16 is arranged around the circumference of the pipe body 1. A sealing ring 7 is provided on the upper side wall of the raised edge 16. When the upper end of the pipe body 1 is screwed to the air inlet end of the faucet through the internal thread, the end face of the air inlet end of the faucet will squeeze the sealing ring 7, thereby sealing the gap between the air inlet end of the faucet and the raised edge 16 through the deformation of the sealing ring 7, so as to improve the air tightness of the connection between the two.

[0039] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. An air intake filter, characterized by, The utility model relates to an air inlet filter, comprising: a pipe body and a tubular filter screen; the pipe body is a structure with an upper end through, and a plurality of air inlets are arranged on the side wall of the pipe body and connected to the inner cavity of the pipe body, the upper end of the pipe body is provided with an internal thread for connecting the air inlet of a faucet, and a plurality of wire holes are arranged on the lower end of the pipe body, and the filter screen is sleeved in the pipe body and covers the air inlets.

2. An air intake filter according to claim 1, wherein The plurality of air inlets are arranged in a grid shape on the circumferential side of the pipe body.

3. An air intake filter according to claim 1, wherein The lower end of the pipe body is through, and a plug head made of elastic material is detachably sleeved on the lower end of the pipe body, the plug head seals the opening of the lower end of the pipe body, and the wire holes are arranged on the plug head.

4. An air intake filter according to claim 3, wherein The air inlet filter further comprises a bottom cover. The diameter of the plug head gradually decreases from the lower end to the upper end, the lower end of the inner side wall of the pipe body is matched with the plug head, the lower end of the pipe body is provided with an external thread, the bottom cover is screwed on the lower end of the pipe body, a wire hole is arranged on the lower side wall of the bottom cover, and the plug head is pressed to tightly fit the lower end of the inner side wall of the pipe body.

5. An air intake filter according to claim 1, wherein The diameter of the inner cavity of the pipe body is larger than that of the two ends in the middle part, forming a receiving cavity, the air inlets are connected to the receiving cavity, and the filter screen is clamped in the receiving cavity.

6. An air intake filter according to claim 1, wherein The pipe body is made of metal.

7. An air intake filter according to claim 1, wherein The upper end and the lower end of the half pipe are provided with through holes in the tangential direction, a screw is sleeved in the through holes of the two half pipes, and a nut is screwed on the tip of the screw.

8. An air intake filter according to claim 1, wherein One of the half pipes is provided with a strip-shaped clamping block on the abutting surface, the clamping block is arranged in the length direction of the abutting surface, and the other half pipe is provided with a clamping groove matched with the clamping block on the abutting surface, and when the two half pipes are enclosed, the clamping block is clamped in the clamping groove.

9. An air intake filter according to claim 1, wherein The filter screen is enclosed by two arc-shaped meshes.

10. An air intake filter according to claim 1, wherein The inner wall of the upper end of the pipe body is provided with a convex edge below the internal thread, the convex edge is arranged in the circumferential direction of the pipe body, and a sealing ring is arranged on the upper side wall of the convex edge.

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