Filtering device

Abstract

The utility model relates to the technical field of water purification equipment, in particular to a filtering device, and aims to solve the problem that the use experience of a user is poor due to the risk that a filter bottle falls off when a filter element of an existing pre-filter is replaced. The filtering device comprises a valve head, a filter bottle and a locking component, the locking component can lock the filter bottle on the valve head when in a locking state and can allow the filter bottle to be separated from the valve head when in an unlocking state, a first hanging structure is arranged on the valve head, a second hanging structure is arranged on the filter bottle, and when the locking component is in the unlocking state, the locking component can lock the filter bottle on the valve head. The second hanging structure can be hung on the first hanging structure, and the first hanging structure and the second hanging structure are further arranged to be capable of preventing the second hanging structure from being disengaged from the first hanging structure. When the filter element is replaced, not only can the filter bottle be prevented from falling off from the valve head, but also the second hanging structure can be prevented from falling off from the first hanging structure, so that the filter bottle is better prevented from falling off from the valve head, and the use experience of a user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water purification equipment, and specifically provides a filtering device. Background Art

[0002] With the development of science and technology and the improvement of people's living standards, the requirements for daily drinking water health are getting higher and higher. The pre-filter can filter out mud, rust and large impurities in the water, and is usually used as a preliminary filtration device for water purification.

[0003] At present, the pre-filter bottle is large and heavy after adding water. During the process of replacing the filter element, after opening the locking structure, if the operator cannot support the weight of the filter bottle, the filter bottle will fall to the ground and splash water, seriously affecting the user experience. Utility Model Content

[0004] The present invention aims to solve the above technical problems at least to a certain extent, that is, to solve at least to a certain extent the problem that the existing pre-filter has the risk of the filter bottle falling when the filter element is replaced, resulting in a poor user experience.

[0005] In a first aspect, the utility model provides a filtering device, which includes a valve head, a filter bottle and a locking member. The locking member is configured to lock the filter bottle on the valve head when it is in a locked state, and the locking member is configured to allow the filter bottle to detach from the valve head when it is in an unlocked state. A first hanging structure is also provided on the valve head, and a second hanging structure compatible with the first hanging structure is provided on the filter bottle. When the locking member is in an unlocked state, the second hanging structure can be hung on the first hanging structure to prevent the filter bottle from falling off the valve head, wherein the first hanging structure and the second hanging structure are also configured to prevent the filter bottle from rotating relative to the valve head, thereby preventing the second hanging structure from detaching from the first hanging structure.

[0006] In the preferred technical solution of the above-mentioned filtering device, the first hanging structure has a first inclined surface, a first upper abutting surface and a first lower abutting surface respectively arranged at two ends of the first inclined surface, the first upper abutting surface is located above the first inclined surface, and the first lower abutting surface is located below the first inclined surface, and one end of the first inclined surface close to the first lower abutting surface is higher than one end of the first inclined surface close to the first upper abutting surface, and the second hanging structure has a second inclined surface, a second upper abutting surface and a second lower abutting surface respectively arranged at two ends of the second inclined surface, the second upper abutting surface is located above the second inclined surface, and the second lower abutting surface is located below the second inclined surface, and one end of the second inclined surface close to the second lower abutting surface is higher than one end of the second inclined surface close to the second upper abutting surface, and when the second inclined surface is hung well, the second inclined surface abuts against the first inclined surface, the second upper abutting surface abuts against the first upper abutting surface, and the second lower abutting surface abuts against the first lower abutting surface.

[0007] In the preferred technical solution of the above-mentioned filtering device, the angle between the first inclined surface and the horizontal direction is denoted as α, and the angle between the second inclined surface and the horizontal direction is denoted as β, wherein the range of α and / or β is 3°-8°.

[0008] In the preferred technical solution of the above-mentioned filtering device, a first stop-retreat structure is provided on the first hanging structure, and a second stop-retreat structure is provided on the second hanging structure. When hung, the first stop-retreat structure cooperates with the second stop-retreat structure to prevent the second hanging structure from falling off from the first hanging structure.

[0009] In a preferred technical solution of the above-mentioned filter device, the first stop-retreat structure is a stop-retreat groove, and the second stop-retreat structure is a stop-retreat protrusion. When the filter device is hung, the stop-retreat protrusion is located in the stop-retreat groove.

[0010] In the preferred technical solution of the above-mentioned filtering device, the first hanging structure is an L-shaped hook, and the filter bottle is also provided with an avoidance groove. The second hanging structure is an L-shaped protrusion formed in the avoidance groove, and the L-shaped hook can enter the avoidance groove from above the avoidance groove. When the locking member is in a locked state, the second hanging structure is located above the first hanging structure. When the locking member is in an unlocked state, the filter bottle moves in a direction away from the valve head so that the L-shaped protrusion is hung on the L-shaped hook.

[0011] In a preferred technical solution of the above-mentioned filtering device, a guide structure is provided at one end of the avoidance groove close to the valve head, so that the L-shaped hook can smoothly enter the avoidance groove.

[0012] In the preferred technical solution of the above-mentioned filtering device, a cover body is provided on the valve head, and the locking member includes a first locking structure provided on the filter bottle and a second locking structure provided on the cover body. When installed, the first locking structure and the second locking structure cooperate to lock the filter bottle on the valve head.

[0013] In a preferred technical solution of the above-mentioned filtering device, the first locking structure is a locking pin, and the second locking structure is a locking groove. When the cover body rotates relative to the valve head, the locking pin can slide along the locking groove so that the locking pin is locked in the locking groove; and / or, the number of the first locking structures is two and the two first locking structures are distributed at intervals along the circumference of the filter bottle, and the number of the second locking structures is also two and they are arranged in a one-to-one correspondence with the first locking structure.

[0014] In a preferred technical solution of the above-mentioned filter device, a gripping portion is provided on the cover body, so that a user can rotate the cover body relative to the valve head by means of the gripping portion.

[0015] When the above-mentioned preferred technical solution is adopted, by setting the first hanging structure and the second hanging structure, when replacing the filter element, not only can the first hanging structure be hung on the second hanging structure to prevent the filter bottle from falling off the valve head, but the second hanging structure can also be prevented from falling off from the first hanging structure, and the filter bottle can be prevented from rotating relative to the valve head due to uneven force, thereby causing the filter bottle to fall off the valve head. When replacing the filter element, the filter bottle can be hung on the valve head more stably, and the filter bottle can be better prevented from falling during the element replacement process, further improving the user experience.

[0016] Furthermore, by arranging the first hanging structure to have a first inclined surface, a first upper abutting surface, and a first lower abutting surface, and arranging the second hanging structure to have a second inclined surface, a second upper abutting surface, and a second lower abutting surface, when the second hanging structure is hung on the first hanging structure, since the second inclined surface abuts against the first inclined surface, under the action of the filter bottle's own weight, the second inclined surface always has a force sliding along the first inclined surface toward the first upper abutting surface, and at the same time, the second upper abutting surface abuts against the first upper abutting surface, and the second lower abutting surface abuts against The first lower abutment surface can prevent the filter bottle from rotating relative to the valve head, thereby preventing the second hanging structure from detaching from the first hanging structure, improving the abutment stability between the second hanging structure and the first hanging structure, and better preventing the second hanging structure from detaching from the first hanging structure. In this way, the second hanging structure can be more stably abutted against the first hanging structure, thereby better preventing the second hanging structure from detaching from the first hanging structure due to uneven force on the filter bottle when replacing the filter element, thereby preventing the filter bottle from falling from the valve head, and further improving the user experience.

[0017] Furthermore, by reasonably controlling the angle between the first inclined surface and the horizontal direction, on the one hand, it is possible to avoid the angle between the first inclined surface and the horizontal direction being too small, which makes it impossible to effectively prevent the second hanging structure from falling off the first hanging structure. On the other hand, it is also possible to avoid the angle between the first inclined surface and the horizontal direction being too large, which increases the difficulty of removing the filter bottle from the valve head.

[0018] Furthermore, by providing a first stop-retraction structure and a second stop-retraction structure, it is possible to more effectively prevent the second hanging structure from detaching from the first hanging structure due to uneven force on the filter bottle, thereby more effectively preventing the filter bottle from falling off the valve head when replacing the filter element.

[0019] Furthermore, by providing a guide structure at one end of the avoidance groove close to the valve head, the L-shaped hook can be guided by the guide structure when entering the avoidance groove, so that the L-shaped hook can enter the avoidance groove more smoothly, thereby improving the installation convenience of the filter bottle and further enhancing the user experience.

[0020] Furthermore, compared with the form of arranging the locking member between the valve head and the filter bottle, arranging the locking member between the cover body and the filter bottle can improve the installation stability between the filter bottle and the valve head, avoid the risk of the filter bottle falling off the valve head during use of the filter device, and further enhance the user experience.

[0021] Furthermore, compared with the first locking structure and the second locking structure being in the form of a locking bolt and a locking hole, setting the first locking structure as a locking pin and setting the second locking structure as a locking groove can improve the installation efficiency between the filter bottle and the valve head, and further enhance the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0023] Figure 1 This is a schematic diagram of the structure of the filter device of the utility model Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the structure of the filter device of the utility model Figure 2 ;

[0025] Figure 3 yes Figure 2 A partial enlarged schematic diagram of point A in the middle;

[0026] Figure 4 This is a schematic diagram of the structure of the filter device of the utility model Figure 3 , which shows the positional relationship of the various components after the cover and the grip are hidden;

[0027] Figure 5 This is a structural diagram of the valve head of the utility model;

[0028] Figure 6 yes Figure 5 A partial enlarged schematic diagram of point B in the middle;

[0029] Figure 7 It is a structural schematic diagram of the filter bottle of the utility model;

[0030] Figure 8 yes Figure 7 A partial enlarged schematic diagram of point C in the middle.

[0031] List of reference numerals:

[0032] 1. Filter bottle; 11. Avoidance groove; 111. Guide structure; 2. Valve head; 21. Cover body; 22. Grip; 3. Locking member; 31. First locking structure; 32. Second locking structure; 4. First hanging structure; 41. First inclined surface; 411. First backstop structure; 42. First upper abutment surface; 43. First lower abutment surface; 5. Second hanging structure; 51. Second inclined surface; 511. Second backstop structure; 52. Second upper abutment surface; 53. Second lower abutment surface. DETAILED DESCRIPTION

[0033] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0034] It should be noted that in the description of this utility model, terms such as "upper," "lower," "inner," and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or component described must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] Furthermore, it should be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "installed," "set," and "connected" should be understood in a broad sense, for example, to refer to fixed connections, detachable connections, or integral connections. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0036] Based on the problem mentioned in the background art that the existing filtering device has the risk of the filter bottle falling when the filter element is replaced, resulting in a poor user experience, the present utility model provides a filtering device.

[0037] Specifically, see Figures 1 to 3 , Figure 1 This is a schematic diagram of the structure of the filter device of the utility model Figure 1 , Figure 2 This is a schematic diagram of the structure of the filter device of the utility model Figure 2 , Figure 3 yes Figure 2 A local enlarged schematic diagram of point A in the middle.

[0038] like Figure 1 As shown, the filtering device of the present invention includes a valve head 2, a filter bottle 1 and a locking member 3. The locking member 3 is configured to lock the filter bottle 1 on the valve head 2 when it is in a locked state, and is also configured to allow the filter bottle 1 to detach from the valve head 2 when it is in an unlocked state.

[0039] like Figure 2 and Figure 3 As shown, a first hanging structure 4 is also provided on the valve head 2, and a second hanging structure 5 compatible with the first hanging structure 4 is provided on the filter bottle 1. When the locking member 3 is in the unlocked state, the second hanging structure 5 can be hung on the first hanging structure 4 to prevent the filter bottle 1 from falling off the valve head 2.

[0040] The first hanging structure 4 and the second hanging structure 5 are further configured to prevent the filter bottle 1 from rotating relative to the valve head 2 , thereby preventing the second hanging structure 5 from escaping from the first hanging structure 4 .

[0041] By setting the first hanging structure 4 and the second hanging structure 5, when replacing the filter element, not only can the first hanging structure 4 be hung on the second hanging structure 5 to prevent the filter bottle 1 from falling off the valve head 2, but the second hanging structure 5 can also be prevented from falling off the first hanging structure 4, and the filter bottle 1 can be prevented from rotating relative to the valve head 2 due to uneven force, thereby causing the filter bottle 1 to fall off the valve head 2, so that when replacing the filter element, the filter bottle 1 can be more stably hung on the valve head 2, and the filter bottle 1 can be better prevented from falling during the element replacement process, further improving the user experience.

[0042] It should be noted that, in actual application, the present invention does not impose any restrictions on the specific structural forms of the first hanging structure 4 and the second hanging structure 5, as long as the second hanging structure 5 can be hung on the first hanging structure 4 and the filter bottle 1 can be prevented from rotating relative to the valve head 2 to avoid the second hanging structure 5 from falling off the first hanging structure 4.

[0043] In a specific embodiment, Figure 3As shown, the first hanging structure 4 has a first inclined surface 41, a first upper abutting surface 42 and a first lower abutting surface 43 respectively arranged at both ends of the first inclined surface 41, the first upper abutting surface 42 is located above the first inclined surface 41, and the first lower abutting surface 43 is located below the first inclined surface 41, and the end of the first inclined surface 41 close to the first lower abutting surface 43 is higher than the end of the first inclined surface 41 close to the first upper abutting surface 42, and the second hanging structure 5 has a second inclined surface 51, a second upper abutting surface 42 respectively arranged at both ends of the second inclined surface 51. The upper abutment surface 52 and the second lower abutment surface 53, the second upper abutment surface 52 is located above the second inclined surface 51, and the second lower abutment surface 53 is located below the second inclined surface 51, and the end of the second inclined surface 51 close to the second lower abutment surface 53 is higher than the end of the second inclined surface 51 close to the second upper abutment surface 52. When hung, the second inclined surface 51 abuts against the first inclined surface 41, the second upper abutment surface 52 abuts against the first upper abutment surface 42, and the second lower abutment surface 53 abuts against the first lower abutment surface 43.

[0044] By such arrangement, when the second hanging structure 5 is hung on the first hanging structure 4, since the second inclined surface 51 abuts against the first inclined surface 41, under the action of the weight of the filter bottle 1 itself, the second inclined surface 51 always has a force to slide along the first inclined surface 41 toward the first upper abutting surface 42. At the same time, the second upper abutting surface 52 abuts against the first upper abutting surface 42, and the second lower abutting surface 53 abuts against the first lower abutting surface 43, which can prevent the filter bottle 1 from rotating relative to the valve head 2 and avoid the second hanging structure 5 from rotating relative to the valve head 2. The structure 5 is detached from the first hanging structure 4, which improves the abutment stability between the second hanging structure 5 and the first hanging structure 4, and better prevents the second hanging structure 5 from detaching from the first hanging structure 4. In this way, the second hanging structure 5 can be more stably abutted against the first hanging structure 4, thereby better preventing the second hanging structure 5 from detaching from the first hanging structure 4 due to uneven force on the filter bottle 1 when replacing the filter element, thereby preventing the filter bottle 1 from falling from the valve head 2, and further improving the user experience.

[0045] In a specific embodiment, the first hanging structure 4 has a first inclined surface and a first upper abutting surface, and the second hanging structure 5 has a second inclined surface and a second upper abutting surface. When hung, the second inclined surface abuts against the first inclined surface, and the second upper abutting surface abuts against the first upper abutting surface, wherein the end of the first inclined surface away from the first upper abutting surface is higher than the end of the first inclined surface close to the first upper abutting surface, and the end of the second inclined surface away from the second upper abutting surface is higher than the end of the second inclined surface close to the second upper abutting surface (not shown in the figure).

[0046] Through such a setting, when the second hanging structure 5 is hung on the first hanging structure 4, since the second inclined surface rests on the first inclined surface, under the action of the filter bottle 1's own gravity, the second inclined surface always has a force to slide along the first inclined surface toward the first upper resting surface, thereby preventing the second inclined surface from sliding along the first inclined surface in the direction away from the first upper resting surface, and making the second upper resting surface rest against the first upper resting surface, thereby preventing the second hanging structure 5 from detaching from the first hanging structure 4. In this way, the second hanging structure 5 can be more stably rested on the first hanging structure 4, thereby better preventing the second hanging structure 5 from detaching from the first hanging structure 4 due to uneven force on the filter bottle 1 when replacing the filter element, thereby preventing the filter bottle 1 from falling off the valve head 2, further improving the user experience.

[0047] Although both of the above-mentioned two embodiments can realize the hanging of the second hanging structure 5 on the first hanging structure 4 and can prevent the second hanging structure 5 from falling off the first hanging structure 4, compared with setting the first hanging structure 4 to have a first inclined surface and a first upper abutment surface, and setting the second hanging structure 5 to have a second inclined surface and a second upper abutment surface, setting the first hanging structure 4 to have a first inclined surface 41, a first upper abutment surface 42, and a first lower abutment surface 43, and setting the second hanging structure 5 to have a second inclined surface 51, a second upper abutment surface 52, and a second lower abutment surface 53, can increase the contact area between the first hanging structure 4 and the second hanging structure 5, and further improve the hanging stability between the first hanging structure 4 and the second hanging structure 5.

[0048] Of course, preferably, the first hanging structure 4 has a first inclined surface 41, a first upper abutting surface 42 and a first lower abutting surface 43 respectively arranged at both ends of the first inclined surface 41, the first upper abutting surface 42 is located above the first inclined surface 41, and the first lower abutting surface 43 is located below the first inclined surface 41, and the end of the first inclined surface 41 close to the first lower abutting surface 43 is higher than the end of the first inclined surface 41 close to the first upper abutting surface 42, and the second hanging structure 5 has a second inclined surface 51, a first upper abutting surface 42 and a first lower abutting surface 43 respectively arranged at both ends of the second inclined surface 51. Two upper abutment surfaces 52 and a second lower abutment surface 53, the second upper abutment surface 52 is located above the second inclined surface 51, and the second lower abutment surface 53 is located below the second inclined surface 51, and the end of the second inclined surface 51 close to the second lower abutment surface 53 is higher than the end of the second inclined surface 51 close to the second upper abutment surface 52. When hung, the second inclined surface 51 abuts against the first inclined surface 41, the second upper abutment surface 52 abuts against the first upper abutment surface 42, and the second lower abutment surface 53 abuts against the first lower abutment surface 43.

[0049] It should be noted that, in actual applications, those skilled in the art may set the number of the first hanging structure 4 and the second hanging structure 5 to only one group, or may set the number of the first hanging structure 4 and the second hanging structure 5 to two groups, or may set the number of the first hanging structure 4 and the second hanging structure 5 to multiple groups, and so on. Such adjustments and changes to the specific setting numbers of the first hanging structure 4 and the second hanging structure 5 do not deviate from the principle and scope of the present utility model, and should be included in the protection scope of the present utility model.

[0050] Continue reading Figure 2 , and then see Figure 4 , Figure 4 This is a schematic diagram of the structure of the filter device of the utility model Figure 3 , which shows the positional relationship of the various components after the cover body and the grip are hidden.

[0051] like Figure 2 and Figure 4 As shown, there are two first hanging structures 4 and the two first hanging structures 4 are respectively arranged on the front and rear sides of the valve head 2 , and there are also two second hanging structures 5 and the second hanging structures 5 are arranged in a one-to-one correspondence with the first hanging structures 4 .

[0052] By providing two first hanging structures 4 and two second hanging structures 5, both sides of the filter bottle 1 can be hung on the first hanging structure 4 through the second hanging structure 5, thereby further improving the hanging stability of the filter bottle 1 and preventing the filter bottle 1 from falling off the valve head 2 due to uneven force.

[0053] It should be noted that the two first hanging structures 4 are not limited to being respectively arranged on the front and rear sides of the valve head 2. For example, the two first hanging structures 4 can also be respectively arranged on the left and right sides of the valve head 2. Alternatively, the two first hanging structures 4 can also be arranged at any other possible positions, etc. Such adjustments and changes to the specific arrangement positions of the first hanging structures 4 do not deviate from the principles and scope of the present invention and should be included in the scope of protection of the present invention. Of course, preferably, the two first hanging structures 4 are respectively arranged on the front and rear sides of the valve head 2.

[0054] Next see Figure 5 and Figure 6 , Figure 5 This is a structural diagram of the valve head 2 of the present invention. Figure 6 yes Figure 5 A partial enlarged schematic diagram of point B in the middle.

[0055] Preferably, if Figure 5 and Figure 6 As shown, the angle between the first inclined surface 41 and the horizontal direction is denoted as α, and the range of α is 3-8°.

[0056] Through such a setting, on the one hand, it can avoid the inability to effectively prevent the second hanging structure 5 from falling off the first hanging structure 4 due to the angle between the first inclined surface 41 and the horizontal direction being too small. On the other hand, it can also avoid the difficulty of removing the filter bottle 1 from the valve head 2 due to the angle between the first inclined surface 41 and the horizontal direction being too large.

[0057] After many experiments and verifications by the inventors, when the angle α between the first inclined surface 41 and the horizontal direction is in the range of 3-8°, it can effectively prevent the second hanging structure 5 from escaping from the first hanging structure 4, and can also smoothly remove the filter bottle 1 from the valve head 2.

[0058] It should be noted that, in actual applications, those skilled in the art do not impose any restrictions on the specific numerical value of the angle between the first inclined surface 41 and the horizontal direction. For example, the angle between the first inclined surface 41 and the horizontal direction can be set to 3°, 4°, 5°, 6°, 7°, 8° or a range consisting of any two of these values.

[0059] Next see Figure 7 and Figure 8 , Figure 7 This is a schematic structural diagram of the filter bottle 1 of the present invention. Figure 8 yes Figure 7 A partial enlarged schematic diagram of point C in the middle.

[0060] Preferably, if Figure 7 and Figure 8 As shown, the angle between the first inclined surface 41 and the horizontal direction is denoted as β, and the range of β is 3-8°.

[0061] It should be noted that, in actual applications, those skilled in the art do not impose any restrictions on the specific numerical value of the angle between the second inclined surface 51 and the horizontal direction. For example, the angle between the second inclined surface 51 and the horizontal direction can be set to 3°, 4°, 5°, 6°, 7°, 8° or a range consisting of any two of these values.

[0062] It should also be noted that, in actual applications, those skilled in the art may set α to be equal to β, or may set α to be greater than β, or may set α to be less than β, and so on. Such flexible adjustments and changes do not deviate from the principle and scope of the present invention and should be included in the scope of protection of the present invention.

[0063] Preferably, α is set equal to β.

[0064] Preferably, if Figure 3 、 Figure 6 and Figure 8As shown, the first hanging structure 4 is also provided with a first stop-retreat structure 411, and the second hanging structure 5 is also provided with a second stop-retreat structure 511. When hung, the first stop-retreat structure 411 cooperates with the second stop-retreat structure 511 to prevent the second hanging structure 5 from falling off the first hanging structure 4.

[0065] By providing the first stop structure 411 and the second stop structure 511, it is possible to more effectively prevent the second hanging structure 5 from detaching from the first hanging structure 4 due to uneven force on the filter bottle 1, thereby more effectively preventing the filter bottle 1 from falling off the valve head 2 when replacing the filter element.

[0066] It should be noted that, in actual applications, those skilled in the art may set the first stop structure 411 to a protrusion and the second stop structure 511 to a groove, or may set the first stop structure 411 to a groove and the second stop structure 511 to a protrusion, and so on. Such adjustments and changes to the specific structural forms of the first stop structure 411 and the second stop structure 511 do not deviate from the principle and scope of the present utility model and should be included in the protection scope of the present utility model.

[0067] Preferably, the first retaining structure 411 is a retaining groove, and the second retaining structure 511 is a retaining protrusion. When the device is hung, the retaining protrusion is located in the retaining groove.

[0068] Preferably, if Figure 3 、 Figure 6 and Figure 8 As shown, the first hanging structure 4 is an L-shaped hook, an avoidance groove 11 is provided on the filter bottle 1, and the second hanging structure 5 is an L-shaped protrusion formed in the avoidance groove 11. The L-shaped hook can enter the avoidance groove 11 from above the avoidance groove 11. When the locking member 3 is in a locked state, the second hanging structure 5 is located above the first hanging structure 4. When the locking member 3 is in an unlocked state, the filter bottle 1 moves in a direction away from the valve head 2 so that the L-shaped protrusion is hung on the L-shaped hook.

[0069] It should be noted that it is not limited to setting the first hanging structure 4 as an L-shaped hook and the second hanging structure 5 as an L-shaped protrusion. For example, the first hanging structure 4 can also be set as an L-shaped protrusion and the second hanging structure 5 can be set as an L-shaped hook, or both the first hanging structure 4 and the second hanging structure 5 can also be set as L-shaped hooks, and so on. Such adjustments and changes to the specific setting types of the first hanging structure 4 and the second hanging structure 5 do not deviate from the principle and scope of the present utility model and should be included in the protection scope of the present utility model.

[0070] Of course, preferably, the first hanging structure 4 is configured as an L-shaped hook, and the second hanging structure 5 is configured as an L-shaped protrusion.

[0071] Preferably, if Figure 8 As shown, a guide structure 111 is provided at one end of the avoidance groove 11 close to the valve head 2 so that the L-shaped hook can smoothly enter the avoidance groove 11 .

[0072] By setting a guide structure 111 at one end of the avoidance groove 11 close to the valve head 2, the L-shaped hook can be guided by the guide structure 111 when entering the avoidance groove 11, so that the L-shaped hook can enter the avoidance groove 11 more smoothly, thereby improving the installation convenience of the filter bottle 1 and further enhancing the user experience.

[0073] It should be noted that, in actual applications, those skilled in the art may set the guide structure 111 to a guide plane, or may set the guide structure 111 to a guide arc surface, etc. Such adjustments and changes to the specific structural form of the guide structure 111 do not deviate from the principle and scope of the present utility model, and should be included in the protection scope of the present utility model.

[0074] Preferably, the guide structure 111 is a guide cambered surface.

[0075] It should be noted that, in actual applications, those skilled in the art may arrange the locking member 3 between the valve head 2 and the filter bottle 1, or may arrange the filtration device to also include a cover body 21, with the locking member 3 arranged between the cover body 21 and the filter bottle 1, and so on. Such adjustments and changes to the specific arrangement of the locking member 3 do not deviate from the principle and scope of the present invention and should be included in the protection scope of the present invention.

[0076] Preferably, if Figure 1 As shown, a cover body 21 is provided on the valve head 2, and the locking member 3 includes a first locking structure 31 provided on the filter bottle 1 and a second locking structure 32 provided on the cover body 21. When installed, the first locking structure 31 and the second locking structure 32 cooperate to lock the filter bottle 1 on the valve head 2.

[0077] Through such a setting, compared with the form of setting the locking member 3 between the valve head 2 and the filter bottle 1, setting the locking member 3 between the cover body 21 and the filter bottle 1 can improve the installation stability between the filter bottle 1 and the valve head 2, avoid the risk of the filter bottle 1 falling off the valve head 2 during use of the filter device, and further enhance the user experience.

[0078] It should be noted that, in practical applications, the present invention does not impose any limitation on the specific configuration of the locking member 3 , as long as it can lock the filter bottle 1 on the valve head 2 .

[0079] In a specific embodiment, the first locking structure 31 and the second locking structure 32 are in the form of a locking bolt and a locking hole.

[0080] In another specific embodiment, Figure 1 and Figure 4 As shown, the first locking structure 31 is a locking pin, and the second locking structure 32 is a locking groove. When the cover body 21 rotates relative to the valve head 2, the locking pin can slide along the locking groove so that the locking pin is locked in the locking groove.

[0081] Although both of the above two embodiments can achieve the goal of fixing the filter bottle 1 on the valve head 2, compared with the structure in which the first locking structure 31 and the second locking structure 32 are in the form of a locking bolt and a locking hole, setting the first locking structure 31 as a locking pin and setting the second locking structure 32 as a locking groove can improve the installation efficiency between the filter bottle 1 and the valve head 2, and further enhance the user experience.

[0082] Preferably, if Figure 1 and Figure 4 As shown, the first locking structure 31 is a locking pin, and the second locking structure 32 is a locking groove. When the cover body 21 rotates relative to the valve head 2, the locking pin can slide along the locking groove so that the locking pin is fixed in the locking groove.

[0083] Specifically, if Figure 1 As shown, the locking groove is an arc-shaped groove.

[0084] It should be noted that, in actual applications, those skilled in the art may set the number of the first locking structures 31 to one, and accordingly, the number of the second locking structures 32 is also one, or the number of the first locking structures 31 may be set to two, and accordingly, the number of the second locking structures 32 is also two, and so on. Such adjustments and changes to the specific setting quantities of the first locking structures 31 and the second locking structures 32 do not deviate from the principle and scope of the present invention, and should be included in the protection scope of the present invention.

[0085] Preferably, if Figure 1 and Figure 4 As shown, there are two first locking structures 31 and the two first locking structures 31 are spaced apart along the circumference of the filter bottle 1 , and there are also two second locking structures 32 and the second locking structures 32 and the first locking structures 31 are arranged in a one-to-one correspondence.

[0086] By setting the number of the first locking structure 31 and the second locking structure 32 to two, the filter bottle 1 can be more stably installed on the valve head 2, avoiding the problem of water leakage caused by loose installation of the filter bottle 1, and further improving the user experience.

[0087] Preferably, if Figure 1、 Figure 2 and Figure 5 As shown, a gripping portion 22 is provided on the cover body 21 so that a user can rotate the cover body 21 relative to the valve head 2 by means of the gripping portion 22 .

[0088] By providing the gripping portion 22 , the user can use the gripping portion 22 to rotate the cover 21 relative to the valve head 2 , thereby further improving the installation efficiency between the filter bottle 1 and the valve head 2 and further enhancing the user experience.

[0089] It should be noted that, in actual applications, those skilled in the art may set the holding portion 22 as a handle, or may set the holding portion 22 as a handle, or may set the holding portion 22 to any other possible form, as long as it is convenient for the user to use the holding portion 22 to rotate the cover body 21 relative to the valve head 2, etc. Such adjustments and changes to the specific setting type of the holding portion 22 do not deviate from the principle and scope of the present utility model, and should be included in the protection scope of the present utility model.

[0090] Preferably, the grip portion 22 is a push-down handle.

[0091] The specific working process of the filtering device of the present utility model is described in detail below.

[0092] When installing the filter bottle 1, first lift the filter bottle 1 by hand and make the first hanging structure 4 enter the avoidance groove 11 from above the avoidance groove 11, then rotate the filter bottle 1 so that the second hanging structure 5 is hung on the first hanging structure 4, press the handle downward to make the first locking structure 31 (locking pin) slide along the second locking structure 32 (locking groove), when the locking pin slides to the bottom of the locking groove, the locking pin is locked in the locking groove, that is, the locking member 3 is in a locked state, and the installation of the filter bottle 1 is completed, which facilitates the normal operation of the filtration device.

[0093] When the filter element needs to be replaced, the filter bottle 1 is removed from the valve head 2, and the gripping portion 22 is first held and rotated in the opposite direction to make the first locking structure 31 (locking pin) slide in the opposite direction along the second locking structure 32 (locking groove). When the locking pin slides to the top of the locking groove, the locking member 3 is in the unlocked state. At this time, the second hanging structure 5 is just above the first hanging structure 4, and the second hanging structure 5 can just be hung on the first hanging structure 4, so as to prevent the filter bottle 1 from falling due to the user not being able to hold it when the locking member 3 is in the unlocked state. When the second hanging structure 5 is hung on the first hanging structure 4, the first inclined surface 41 and the second inclined surface 51 cooperate to prevent the filter bottle 1 from rotating relative to the valve head 2, and thus prevent the second hanging structure 5 from escaping from the first hanging structure 4, thereby avoiding the filter bottle 1 from falling from the valve head 2 due to uneven force or misoperation. The user then lifts the filter bottle 1 upward and rotates the filter bottle 1 in the opposite direction, so that the second hanging structure 5 is staggered with the first hanging structure 4, and the filter bottle 1 moves downward, so that the first hanging structure 4 is removed from the avoidance groove 11, and the disassembly of the filter bottle 1 is completed.

[0094] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. A filtering device, characterized in that: The filtration device includes a valve head, a filter bottle, and a locking member, wherein the locking member is configured to lock the filter bottle on the valve head when in a locked state, and the locking member is configured to allow the filter bottle to be detached from the valve head when in an unlocked state. The valve head is further provided with a first hanging structure, and the filter bottle is provided with a second hanging structure adapted to the first hanging structure. When the locking member is in an unlocked state, the second hanging structure can be hung on the first hanging structure to prevent the filter bottle from falling off the valve head. The first hanging structure and the second hanging structure are further configured to prevent the filter bottle from rotating relative to the valve head, thereby preventing the second hanging structure from escaping from the first hanging structure.

2. The filtering device according to claim 1, characterized in that The first hanging structure comprises a first inclined surface, a first upper abutting surface and a first lower abutting surface respectively provided at both ends of the first inclined surface, the first upper abutting surface being located above the first inclined surface, the first lower abutting surface being located below the first inclined surface, and an end of the first inclined surface close to the first lower abutting surface being higher than an end of the first inclined surface close to the first upper abutting surface. The second hanging structure has a second inclined surface, a second upper abutting surface and a second lower abutting surface respectively provided at both ends of the second inclined surface, the second upper abutting surface is located above the second inclined surface, the second lower abutting surface is located below the second inclined surface, and an end of the second inclined surface close to the second lower abutting surface is higher than an end of the second inclined surface close to the second upper abutting surface. When hung, the second inclined surface abuts against the first inclined surface, the second upper abutting surface abuts against the first upper abutting surface, and the second lower abutting surface abuts against the first lower abutting surface.

3. The filtering device according to claim 2, characterized in that The angle between the first inclined plane and the horizontal direction is denoted as α, and the angle between the second inclined plane and the horizontal direction is denoted as β. The range of α and / or β is 3°-8°.

4. The filtering device according to claim 2, characterized in that The first hanging structure is provided with a first stop-return structure, and the second hanging structure is provided with a second stop-return structure. When hung, the first stop-return structure cooperates with the second stop-return structure to prevent the second hanging structure from falling off from the first hanging structure.

5. The filtering device according to claim 4, characterized in that The first retaining structure is a retaining groove, and the second retaining structure is a retaining protrusion. When the device is hung, the retaining protrusion is located in the retaining groove.

6. The filtering device according to claim 1, characterized in that The first hanging structure is an L-shaped hook, and the filter bottle is also provided with an avoidance groove. The second hanging structure is an L-shaped protrusion formed in the avoidance groove. The L-shaped hook can enter the avoidance groove from above the avoidance groove. When the locking member is in a locked state, the second hanging structure is located above the first hanging structure. When the locking member is in an unlocked state, the filter bottle moves in a direction away from the valve head so that the L-shaped protrusion is hung on the L-shaped hook.

7. The filtering device according to claim 6, characterized in that A guide structure is provided at one end of the avoidance groove close to the valve head so that the L-shaped hook can smoothly enter the avoidance groove.

8. The filtering device according to any one of claims 1 to 7, characterized in that A cover body is provided on the valve head, and the locking member includes a first locking structure provided on the filter bottle and a second locking structure provided on the cover body. When installed, the first locking structure and the second locking structure cooperate to lock the filter bottle on the valve head.

9. The filtering device according to claim 8, characterized in that The first locking structure is a locking pin, and the second locking structure is a locking groove. When the cover body rotates relative to the valve head, the locking pin can slide along the locking groove so that the locking pin is locked in the locking groove; And / or, the number of the first locking structures is two and the two first locking structures are spaced apart along the circumference of the filter bottle, and the number of the second locking structures is also two and they are arranged in a one-to-one correspondence with the first locking structures.

10. The filtering device according to claim 8, characterized in that The cover body is provided with a gripping portion so that a user can rotate the cover body relative to the valve head by means of the gripping portion.

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