Filtering device and water purifier

Abstract

The utility model relates to the technical field of water purification, particularly provides a filtering device and a water purifier, and aims to solve the problem that water overflows when a filtering bottle is disassembled in an existing filtering state. In order to achieve the purpose, the filtering device comprises a valve assembly, a filtering bottle, a locking assembly and a locking assembly, and a filtering cavity is formed in the filtering bottle; the valve assembly is connected to the filter bottle and comprises a valve element which can rotate to communicate or block the filter cavity and an external water source; the locking assembly is used for locking the filter bottle and the valve assembly, and the locking of the filter bottle and the valve assembly can be relieved by unlocking the locking assembly; the locking assembly comprises a locking piece, the locking piece is in transmission connection with the valve element so as to be switched between the locking position and the unlocking position, in the locking position, the filtering cavity is communicated with an external water source, the locking piece locks the locking assembly, so that the locking assembly cannot be unlocked, the filtering bottle cannot be detached, and the problem of water overflowing can be avoided.

Description

Technical Field

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

[0002] In order to better ensure the health of drinking water, water dispensers have become an indispensable kitchen appliance in many families.

[0003] The water dispenser includes a valve assembly and a filter bottle, which is detachably connected to the valve assembly. The filter element in the filter bottle degrades over time and needs to be replaced. However, if the filter bottle is removed while filtering, the water in the valve assembly will automatically flow out, causing overflow.

[0004] Therefore, there is an urgent need for a filtering device and a water purifier to solve the above technical problems. Utility Model Content

[0005] The utility model aims to solve the above technical problem, that is, to solve the problem that water overflows when the filter bottle is disassembled in the existing filtering state.

[0006] In a first aspect, the present invention provides a filtering device, comprising:

[0007] A filter bottle having a filter chamber therein;

[0008] a valve assembly connected to the filter bottle, the valve core being rotatable to connect or block the filter chamber with an external water source;

[0009] A locking assembly, which is used to lock the filter bottle and the valve assembly, and the locking assembly can release the lock of the filter bottle and the valve assembly when the locking assembly is unlocked;

[0010] The locking assembly includes a locking member, which is in transmission connection with the valve core to switch between a locked position and an unlocked position. In the locked position, the filter chamber is connected to an external water source, and the locking member locks the locking assembly so that the locking assembly cannot be unlocked.

[0011] In a specific embodiment of the above-mentioned filter device, the valve assembly includes a driving member connected to the valve core, and the driving member is provided with a protrusion;

[0012] In the locking position, the protrusion abuts against the locking member, so that the locking member locks the locking assembly.

[0013] In a specific embodiment of the above-mentioned filter device, the locking assembly also includes a first elastic member. When the valve core does not connect the filter bottle to the water inlet and water outlet of the filter device, the first elastic member is used to drive the locking member to move in the direction of the driving member to release the lock of the locking assembly.

[0014] In a specific embodiment of the above-mentioned filtering device, the first elastic member is sleeved on the locking member, and a stop portion is provided on the locking member. The two ends of the first elastic member respectively abut against the valve assembly and the stop portion, so that the first elastic member can drive the locking member to release the lock of the locking assembly.

[0015] In a specific embodiment of the above-mentioned filtering device, the locking assembly includes a first locking member and a second locking member; the first locking member is disposed on the filtering bottle;

[0016] The second locking member is movably provided on the valve assembly, and a locking portion is provided on the second locking member. After the second locking member moves to a first preset position, the locking portion cooperates with the first locking member to lock the filter bottle and the valve assembly.

[0017] After the second locking member moves to the first preset position, the locking member can lock the second locking member.

[0018] In a specific embodiment of the above-mentioned filter device, a locking groove is provided on the second locking member, and after the locking member is partially inserted into the locking groove, the second locking member can be locked.

[0019] In a specific embodiment of the above-mentioned filtering device, the second locking piece is rotatably connected to the valve assembly, the locking portion is an arc-shaped groove arranged on the second locking piece, and a locking protrusion is provided on the first locking piece. The rotation of the second locking piece can enable the locking protrusion to enter the arc-shaped groove to achieve locking of the filter bottle and the valve assembly.

[0020] In a specific embodiment of the above-mentioned filter device, the valve assembly further includes a knob connected to the valve core, and rotating the knob can switch the state of the valve assembly and the position of the protrusion; and / or

[0021] The knob is rotated to drive the valve core to rotate. When the valve core rotates to connect the filter bottle to the water inlet and the water outlet of the filter device, the protrusion abuts against the locking member to drive the locking member to lock the locking assembly.

[0022] Rotating the knob drives the valve core to rotate. When the valve core rotates until the filter bottle is not connected to the water inlet and the water outlet of the filter device, the protrusion no longer abuts against the locking member, thereby releasing the lock on the second locking member.

[0023] In a specific embodiment of the above-mentioned filtering device, the valve assembly further includes a drive motor and a transmission assembly, the output end of the drive motor is in transmission connection with the valve core through the transmission assembly, and the drive motor is used to drive the valve core to rotate to change the state of the valve assembly and switch the position of the protrusion; and / or

[0024] When the driving motor drives the valve core to rotate until the filter bottle is connected to the water inlet and the water outlet of the filter device, the protrusion abuts against the locking member to drive the locking member to lock the locking assembly;

[0025] When the driving motor drives the valve core to rotate until the filter bottle is disconnected from the water inlet and the water outlet of the filter device, the protrusion no longer abuts against the locking member, thereby releasing the lock on the second locking member.

[0026] In a specific embodiment of the above-mentioned filter device, the transmission assembly and the valve core are connected via a clutch, and pressing the knob can disengage the clutch from the transmission assembly;

[0027] When the driving motor is powered off or fails, rotating the knob can switch the state of the valve assembly and the position of the protrusion.

[0028] In a specific embodiment of the above-mentioned filter device, the knob is connected to the valve core via a connecting shaft, and the connecting shaft can drive the valve core to rotate and can move axially relative to the valve core.

[0029] The clutch includes a clutch member provided on the connecting shaft, and the transmission assembly includes a transmission wheel rotatably provided on the connecting shaft, the clutch member is located on a side of the transmission wheel close to the valve core, and when the clutch member is connected to the transmission wheel, the drive motor can drive the transmission wheel to drive the clutch member to rotate, thereby driving the valve core to rotate, thereby changing the state of the valve assembly and switching the position of the protrusion;

[0030] When the knob is pressed, the connecting shaft can be moved toward the valve core, causing the clutch member to disengage from the transmission wheel, so that rotating the knob can change the state of the valve assembly and switch the position of the protrusion;

[0031] In a specific embodiment of the above-mentioned filter device, the clutch member is provided with a first limiting portion, and the transmission wheel is provided with a second limiting portion. When the first limiting portion and the second limiting portion cooperate with each other, the transmission wheel can drive the clutch member to rotate;

[0032] The filtering device further includes a second elastic member, which is sleeved on the connecting shaft and can drive the clutch member to move toward the transmission wheel so that the first limiting portion and the second limiting portion cooperate;

[0033] Pressing the knob can move the connecting shaft toward the valve core, causing the clutch member to disengage from the transmission wheel, thereby releasing the first limiting portion and the second limiting portion from engaging with each other.

[0034] In a second aspect, the present invention provides a water purifier comprising the filtering device as described above.

[0035] When adopting the above-mentioned technical solution, the filtering device of the present invention includes a valve assembly, a filter bottle, a locking assembly and a locking assembly, and a filter chamber is provided in the filter bottle; the valve assembly is connected to the filter bottle, and includes a valve core that can rotate to connect or block the filter chamber with an external water source; the locking assembly is used to lock the filter bottle and the valve assembly, and unlocking the locking assembly can release the lock of the filter bottle and the valve assembly; the locking assembly includes a locking member, and the locking member is transmission-connected to the valve core to switch between a locked position and an unlocked position. In the locked position, the filter chamber is connected to the external water source, and the locking member locks the locking assembly so that the locking assembly cannot be unlocked, and the filter bottle cannot be removed, thereby avoiding the problem of water overflow.

[0036] In addition, in the unlocked position, the locking assembly no longer locks the locking assembly, and the locking assembly can be unlocked to release the lock of the filter bottle and the valve assembly so that the filter element in the filter bottle can be replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0038] Figure 1 It is a structural schematic diagram of the filtering device provided by the utility model;

[0039] Figure 2 This is a cross-sectional view of the filter device provided by the utility model. Figure 1 ;

[0040] Figure 3 This is a cross-sectional view of the filter device provided by the utility model. Figure 2 ;

[0041] Figure 4 This is a structural diagram of the second valve body provided by the utility model;

[0042] Figure 5 This is a cross-sectional view of the second valve body provided by the utility model;

[0043] Figure 6 This is a schematic diagram of the local structure of the filter device provided by the utility model Figure 1 ;

[0044] Figure 7 This is a schematic diagram of the local structure of the filter device provided by the utility model Figure 2 ;

[0045] Figure 8 This is a schematic diagram of the local structure of the filtering device provided by the utility model Figure 3 ;

[0046] Figure 9 This is a schematic diagram of the local structure of the filter device provided by the utility model Figure 4 .

[0047] List of reference numerals:

[0048] 11. Valve core; 111. First through hole; 112. Second through hole; 113. First flow channel; 12. First valve body; 121. Third through hole; 122. Fourth through hole; 123. Spacer ring; 124. First intermediate chamber; 125. Second intermediate chamber; 13. Second valve body; 131. Fifth flow channel; 132. Second flow channel; 133. Third intermediate chamber; 134. Bottom chamber; 135. First mounting hole; 14. Support member; 15. Driving member; 151. Protrusion; 16. Connecting shaft; 161. Clutch member; 161 1. First limiting part; 162. Second elastic part; 17. Knob; 18. Connecting part; 181. Water inlet channel; 182. Water outlet channel; 19. Outer shell; 21. Shell; 211. First locking part; 22. Filter element; 223. Third flow channel; 224. Fourth flow channel; 221. Sixth flow channel; 23. One-way valve; 3. Second locking part; 31. Locking part; 32. Handle; 33. Locking groove; 41. Locking part; 42. First elastic part; 43. Stopping part; 50. Driving motor; 51. Transmission wheel; 511. Second limiting part. DETAILED DESCRIPTION

[0049] 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.

[0050] It should be noted that in the description of this utility model, terms such as "upper," "lower," "left," "right," "inner," and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is merely for ease of description and does not indicate or imply that the device or component described must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, it should not be understood as limiting the utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance.

[0051] 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, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0052] In order to solve the problem of water overflow caused by disassembling the filter bottle in the existing filtering state, this embodiment discloses a water purifier, which includes a filtering device, a water inlet pipe, a water outlet pipe and a drain valve, wherein the water inlet pipe is connected to the water inlet of the filtering device, and the water outlet pipe is connected to the water outlet of the filtering device and the drain valve.

[0053] Among them, such as Figure 1-9 As shown, the filtering device includes a valve assembly, a filtering bottle, a locking assembly and a locking assembly.

[0054] like Figure 2 and 3 As shown, the valve assembly includes a valve core 11, a first valve body 12, and a second valve body 13. The valve core 11 is disposed within the first valve body 12 and is sealed therewith. The valve core 11 is a hollow structure, and a first through hole 111 and a second through hole 112 are disposed on the sidewall of the valve core 11. The first through hole 111 is disposed near the first end, and the second through hole 112 is disposed near the second end. The first through hole 111 and the second through hole 112 are staggered, specifically, the angle between the first through hole 111 and the second through hole 112, when projected axially along the valve core 11, is 180°.

[0055] The first valve body 12 is cylindrical and is provided with a third through hole 121 and a fourth through hole 122. The third through hole 121 is located near the first end, while the fourth through hole 122 is located near the second end. The third through hole 121 and the fourth through hole 122 are offset. Specifically, the angle between the third through hole 121 and the fourth through hole 122, when projected axially along the first valve body 12, is 90°. Specifically, the third through hole 121 is located at the top, while the fourth through hole 122 is located in the middle. When viewed from the first end of the first valve body 12, the third through hole 121 is located at the top, while the fourth through hole 122 is located in the middle on the right side. Rotating the valve core 11 aligns the first through hole 111 with the third through hole 121, but the second through hole 112 and the fourth through hole 122 are not aligned. When the second through hole 112 and the third through hole 121 are aligned, the first through hole 111 and the third through hole 121 are not aligned. When the first through hole 111 and the third through hole 121 form a 180° angle or a 90° angle (when the first through hole 111 is located in the middle of the right side as viewed from the first section), the first through hole 111 and the third through hole 121 are misaligned, and the second through hole 112 and the fourth through hole 122 are misaligned, and the valve assembly is in a closed state. When the first through hole 111 and the third through hole 121 are aligned, and the second through hole 112 and the fourth through hole 122 are misaligned, the valve assembly is in a filtering state, connecting the filter bottle to the water inlet and outlet of the filtration device, meaning that water needs to be filtered through the filter bottle; this state is also the locked position. When the valve core is in other states, the filter bottle cannot connect to the water inlet and outlet of the filtration device; when the first through hole 111 and the third through hole 121 are misaligned, and the second through hole 112 and the fourth through hole 122 are aligned, the valve assembly is in a bypass state, indicating the non-filtering state of the filtration device, which is also the unlocked position.

[0056] like Figure 2-5 As shown, the second valve body 13 is provided with a first valve cavity, wherein the first valve body 12 is disposed within the first valve cavity, with both ends of the first valve body 12 abutting against the inner wall of the first valve cavity. A separator ring is provided outwardly from the middle portion of the first valve body 12, abutting against the inner wall of the first valve cavity, with a sealing ring disposed between them. The separator ring divides the first valve cavity into a first intermediate chamber 124 and a second intermediate chamber 125. The third through-hole 121 communicates with the first intermediate chamber 124, and the fourth through-hole 122 communicates with the second intermediate chamber 125. A first flow channel 113 is provided on the second valve body 13. It is located at the first end of the second valve body 13 and communicates with the cavity of the valve core 11. Raw water flows through the first flow channel 113 into the valve core 11, then flows through the first and second through-holes 111 and 112 into the first intermediate chamber 124, or flows through the second and fourth through-holes 112 into the second intermediate chamber 125.

[0057] The second valve body 13 comprises a first cylindrical structure and a second cylindrical structure. The first cylindrical structure is disposed within the second cylindrical structure. The first valve chamber and the first flow channel 113 are disposed within the first cylindrical structure. The portion between the second and first cylindrical structures defines a third intermediate chamber 133. A second flow channel 132 is disposed within the third valve body, connecting the second intermediate chamber 125 and the third intermediate chamber 133. When viewed from the first end, the second flow channel 132 is located to the left of the center.

[0058] The filter bottle is connected to the valve assembly; specifically, it includes a housing 21 and a filter element disposed within the housing 21. Specifically, the chamber within the housing 21 of the filter bottle serves as a filter chamber. A third flow channel 223 and a fourth flow channel 224 surrounding the third flow channel 223 are located in the center of the filter element. A sixth flow channel 221 is formed between the housing 21 and the filter element. A first mounting hole 135 is provided in the second valve body 13, facing the third flow channel 223. A one-way valve 23 is mounted within the first mounting hole 135.

[0059] A bottom chamber 134 is provided at the bottom of the second valve body 13. The filter bottle is mounted at the bottom of the second valve body 13, with the bottom chamber 134 covering the top of the filter element. Water within the bottom chamber 134 can enter the sixth flow channel 221 and the fourth flow channel 224, where it is filtered by the filter element before flowing into the third flow channel 223 and into the third intermediate chamber 133 through the one-way valve 23. A fifth flow channel 131 is provided between the first intermediate chamber 124 and the third intermediate chamber 133. Water within the first intermediate chamber 124 can flow through the fifth flow channel 131 into the bottom chamber 134, where it is filtered and then flows out through the second intermediate chamber 125.

[0060] Continue to refer to Figure 2 and 3 The valve body assembly further includes a connecting member 18 disposed at the first end of the second valve body 13. The connecting member 18 is provided with an inlet flow channel 181 and an outlet flow channel 182, wherein the inlet flow channel 181 is connected to the first flow channel 113, and the outlet flow channel 182 is connected to the third intermediate chamber 133.

[0061] like Figure 2 As shown, in the filtering state, that is, in the locked position, the first through hole 111 and the third through hole 121 are aligned, and the raw water enters the first flow channel 113 from the water inlet channel 181, and then enters the first intermediate chamber 124 through the first through hole 111 and the third through hole 121, and flows into the bottom chamber 134 through the fifth flow channel 131, and then is filtered by the filter element, enters the third intermediate chamber 133 through the one-way valve 23, and flows out through the water outlet channel 182.

[0062] In the bypass state, that is, in the unlocked position, the second through hole 112 and the fourth through hole 122 are aligned, and the raw water enters the first flow channel 113 from the water inlet channel 181, then enters the second intermediate chamber 125 through the second through hole 112 and the fourth through hole 122, and enters the third intermediate chamber 133 through the second flow channel 132, and flows out through the water outlet channel 182.

[0063] Continue to refer to Figure 2 and 3 The filter device further includes a housing 19, wherein the second valve body 13 is disposed in the housing 19. The top, left and right sides, and second end of the valve assembly are all covered by the housing 19.

[0064] Reference Figure 1 The locking assembly is used to lock the filter bottle and the valve assembly, and unlocking the locking assembly can release the lock of the filter bottle and the valve assembly; specifically, the locking assembly includes a first locking piece and a second locking piece 3; wherein, the first locking piece is arranged on the filter bottle, specifically on the shell 21, and the first locking piece is provided on both sides of the shell 21, wherein the first locking piece is provided with a locking protrusion for cooperating with the second locking piece 3.

[0065] The second locking member 3 is movably mounted on the valve assembly. It includes a locking portion 31. When the second locking member 3 is moved to a first predetermined position, the locking portion 31 engages with the first locking member to lock the filter bottle and the valve assembly. Specifically, the second locking member 3 is rotatably connected to the valve assembly, specifically to the left and right sides of the second valve body 13. The locking portion 31 is an arcuate groove on the second locking member 3. Rotation of the second locking member 3 allows the locking protrusion to enter the arcuate groove, locking the filter bottle and the valve assembly. The second locking member 3 includes two side surfaces, located on the left and right sides of the housing 19, and connecting end surfaces connected to the two side surfaces. A handle 32 is provided on the second locking member 3, connected to the bottom of the end surface. The handle 32 is located at the second end of the valve assembly. The handle 32 facilitates lifting the second locking member 3 to disengage the locking protrusion from the arcuate groove, releasing the lock on the filter bottle and facilitating filter cartridge replacement.

[0066] Although the second locking member 3 is rotatably connected to the valve assembly in this embodiment, this is not a limitation of the present invention. Without departing from the principles of the present invention, in other embodiments, the second locking member 3 may be slidably disposed on the valve assembly, specifically, on the left and right sides of the second valve body 13, and may be movable horizontally or in a horizontally upwardly inclined direction. Furthermore, a strip groove is formed on the locking portion 31, into which the locking protrusion slides to lock the filter bottle. After the second locking member 3 is removed, the locking protrusion is no longer restricted, thereby releasing the lock on the filter bottle.

[0067] Reference Figure 2 、 6 7, the locking assembly includes a locking member 41, which is in driving connection with the valve core 11. The locking member 41 drives the valve core to switch between a locked position and an unlocked position. In the locked position, the filter chamber is connected to the external water source, and the locking member 41 locks the locking assembly, preventing it from being unlocked. Specifically, the locking member 41 can only lock the second locking member 3 after the second locking member 3 moves to the first preset position. The locking member 41 is specifically a locking rod, and the locking assembly is locked and unlocked by moving the locking rod up and down.

[0068] The valve assembly includes a driver 15 connected to the valve core 11. Driver 15 is provided with a protrusion 151. When the filter device is in the filtering state, driver 15 rotates until protrusion 151 abuts against locking member 41, causing locking member 41 to lock the locking assembly. Driver 15 is specifically a cam structure, with protrusion 151 being its most protruding portion. The second end of the valve core 11 is connected to a connecting shaft 16, on which a cam is mounted.

[0069] The locking assembly also includes a first elastic member 42. In the unlocked position, the first elastic member 42 is used to drive the locking member 41 toward the driving member 15 to release the locking assembly. Specifically, the first elastic member 42 is a compression spring and is mounted on the locking member 41. The locking member 41 is provided with a stopper 43. The ends of the first elastic member 42 abut the valve assembly and the stopper 43, respectively, so that the first elastic member 42 can drive the locking member 41 to release the locking assembly. A support member 14 is connected to the second valve body 13, wherein the support member 14 is located at the second end of the second valve body 13. The locking rod is slidably mounted on the support member 14, and the bottom end of the first elastic member 42 abuts the support member 14. The second locking member 3 is provided with a locking groove 33. When the locking member 41 is partially inserted into the locking groove 33, the second locking member 3 is locked. Specifically, the locking groove 33 is located on the inner side of the end surface of the second locking member 3. The bottom of the locking rod is inserted into the locking groove 33 by the cam protrusion 151, thereby locking the second locking member 3 and preventing it from moving and unlocking. After the cam protrusion 151 is removed, the bottom of the locking rod is disengaged from the locking groove 33 by the first elastic member 42, thereby releasing the lock on the second locking member 3 and allowing it to move, thereby unlocking the filter bottle.

[0070] The valve assembly also includes a knob 17, which is connected to the valve core 11. Specifically, the knob 17 is connected to a cam. Knob 17, via the cam and connecting shaft 16, can drive the valve core 11 to rotate. Specifically, rotating knob 17 switches the state of the valve assembly, specifically the positions of the first through hole 111 and the second through hole 112, thereby switching the water flow state of the valve assembly. Furthermore, rotating knob 17 switches the position of protrusion 151. Specifically, when the valve assembly is in the state of supplying water to the filter bottle, that is, in the locked position, protrusion 151 abuts against the locking rod, thereby locking the second locking member 3. This prevents accidental removal of the filter bottle during filtration, which could result in water overflow.

[0071] like Figure 2 、 8 As shown in Figures 9 and 10, the valve assembly also includes a drive motor 50 and a transmission assembly. The output end of the drive motor 50 is connected to the valve core 11 through the transmission assembly. The drive motor 50 is used to drive the valve core 11 to rotate to change the state of the valve assembly and can switch the position of the protrusion 151. Specifically, the transmission assembly includes an output gear and a transmission wheel 51. The output end of the drive motor 50 is provided with an output gear. The transmission wheel 51 is rotatably provided on the connecting shaft 16 of the valve core 11, wherein the connecting shaft 16 includes two sections, which are fixedly connected, wherein the first section is connected to the knob 17, and the second section is connected to the valve core 11. The transmission wheel 51 is a gear, and the output gear and the transmission wheel 51 are connected through an intermediate gear. The drive motor 50 is specifically a servo motor or a stepper motor. By controlling the rotation angle of the drive motor 50, the rotation angle of the valve core 11 can be controlled, thereby controlling the state of the valve assembly.

[0072] The transmission assembly and the valve core 11 are connected by a clutch, and pressing the knob 17 can disengage the clutch from the transmission assembly; when the drive motor 50 is powered off or fails, turning the knob 17 can switch the state of the valve assembly and the position of the protrusion 151.

[0073] Specifically, the second section of the connecting shaft 16 can drive the valve core 11 to rotate and can move axially relative to the valve core 11. Specifically, the end of the connecting shaft 16 close to the valve core 11 is flat, and the connecting hole connecting the valve core 11 and the connecting shaft is also flat. The connecting shaft 16 is slidably inserted into the connecting hole, so that the connecting shaft 16 can drive the valve core 11 to rotate and can move axially relative to the valve core 11.

[0074] The clutch includes a clutch member 161 arranged on the connecting shaft 16, and the transmission assembly includes a transmission wheel 51 rotatably arranged on the connecting shaft 16, the clutch member 161 is located on the side of the transmission wheel 51 close to the valve core 11, and a first limiting portion 1611 is provided on the clutch member 161, and a second limiting portion 511 is provided on the transmission wheel 51. When the first limiting portion 1611 and the second limiting portion 511 cooperate with each other, the transmission wheel 51 can drive the clutch member 161 to rotate; specifically, the first limiting portion 1611 is a limiting block, and the second limiting portion 511 is a limiting hole; in other embodiments, the first limiting portion 1611 can also be a limiting hole, and the second limiting portion 511 can be a limiting block; part of the first limiting portion 1611 can also be a limiting block, and the other part can be a limiting hole; correspondingly, part of the second limiting portion 511 is also a limiting hole, and the other part is a limiting block.

[0075] When the clutch 161 is connected to the transmission wheel 51 , the driving motor 50 can drive the transmission wheel 51 to drive the clutch 161 to rotate, thereby driving the valve core 11 to rotate, thereby changing the state of the valve assembly and switching the position of the protrusion 151 .

[0076] When the knob 17 is pressed, the connecting shaft 16 can be moved toward the valve core 11, so that the clutch 161 disengages from the transmission wheel 51, specifically, the first limit portion 1611 and the second limit portion 511 are released from engagement, so that turning the knob 17 can change the state of the valve assembly and switch the position of the protrusion 151.

[0077] The filter device also includes a second elastic member 162, which is sleeved on the connecting shaft 16 and is capable of driving the clutch member 161 toward the transmission wheel 51, thereby engaging the first limit portion 1611 and the second limit portion 511, so that the drive motor 50 can drive the valve core 11 to rotate. The second elastic member 162 is specifically a compression spring, with its two ends respectively contacting the clutch member 161 and the first valve body 12 or the second valve body 13, so that the second elastic member 162 drives the clutch member 161 toward the transmission wheel 51.

[0078] 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: It includes: A filter bottle having a filter chamber therein; A valve assembly is connected to the filter bottle, wherein the valve assembly includes a valve core (11) that can rotate to connect or block the filter chamber with an external water source; A locking assembly, which is used to lock the filter bottle and the valve assembly, and the locking assembly can release the lock of the filter bottle and the valve assembly when the locking assembly is unlocked; A locking assembly comprises a locking member (41), wherein the locking member (41) is in driving connection with the valve core (11) to switch between a locking position and an unlocking position. In the locking position, the filter chamber is in communication with an external water source, and the locking member (41) locks the locking assembly so that the locking assembly cannot be unlocked.

2. The filtering device according to claim 1, characterized in that The valve assembly comprises a driving member (15) connected to the valve core (11), and a protrusion (151) is provided on the driving member (15); In the locking position, the protruding portion (151) abuts against the locking member (41), so that the locking member (41) locks the locking assembly.

3. The filtering device according to claim 2, characterized in that The locking assembly further comprises a first elastic member (42), the first elastic member (42) being sleeved on the locking member (41), a stop portion (43) being provided on the locking member (41), and two ends of the first elastic member (42) respectively abutting against the valve assembly and the stop portion (43), so that the first elastic member (42) can drive the locking member (41) to release the locking of the locking assembly in the unlocking position.

4. The filtering device according to claim 1, characterized in that The locking assembly comprises a first locking member and a second locking member (3), wherein the first locking member is arranged on the filter bottle; The second locking member (3) is movably arranged on the valve assembly, and a locking portion (31) is provided on the second locking member (3); After the second locking member (3) moves to the first preset position, the locking portion (31) cooperates with the first locking member to lock the filter bottle and the valve assembly, and the locking member (41) can lock the second locking member (3); and / or A locking groove (33) is provided on the second locking member (3), and after the second locking member (3) moves to the first preset position, the locking member (41) is partially inserted into the locking groove (33) to lock the second locking member (3); and / or The second locking member (3) is rotatably connected to the valve assembly, the locking portion (31) is an arcuate groove provided on the second locking member (3), and a locking protrusion is provided on the first locking member. The second locking member (3) rotates to enable the locking protrusion to enter the arcuate groove, thereby achieving locking of the filter bottle and the valve assembly.

5. The filtering device according to claim 2, characterized in that The valve assembly further comprises a knob (17) connected to the valve core (11); rotating the knob (17) can switch the state of the valve assembly and the position of the protrusion (151).

6. The filtering device according to claim 5, characterized in that The valve assembly further comprises a drive motor and a transmission assembly, wherein the output end of the drive motor is in transmission connection with the valve core (11) via the transmission assembly, and the drive motor is used to drive the valve core (11) to rotate so as to change the state of the valve assembly and can switch the position of the protrusion (151).

7. The filtering device according to claim 6, characterized in that The transmission assembly and the valve core (11) are connected via a clutch, and pressing the knob (17) can disengage the clutch from the transmission assembly, thereby switching the state of the valve assembly solely through the knob (17).

8. The filtering device according to claim 7, characterized in that The knob (17) is connected to the valve core (11) via a connecting shaft (16). The connecting shaft (16) can drive the valve core (11) to rotate and can move axially relative to the valve core (11). The clutch comprises a clutch member (161) arranged on the connecting shaft (16); the transmission assembly comprises a transmission wheel (51) rotatably arranged on the connecting shaft (16); the clutch member (161) is located on a side of the transmission wheel (51) close to the valve core (11); when the clutch member (161) is connected to the transmission wheel (51), the drive motor (50) can drive the transmission wheel (51) to drive the clutch member (161) to rotate, thereby driving the valve core (11) to rotate, thereby changing the state of the valve assembly and switching the position of the protrusion (151); When the knob (17) is pressed, the connecting shaft (16) can be moved toward the valve core (11), so that the clutch member (161) is disengaged from the transmission wheel (51), so that turning the knob (17) can change the state of the valve assembly and switch the position of the protrusion (151).

9. The filtering device according to claim 8, characterized in that The clutch member (161) is provided with a first limiting portion (1611), and the transmission wheel (51) is provided with a second limiting portion (511). When the first limiting portion (1611) and the second limiting portion (511) cooperate with each other, the transmission wheel (51) can drive the clutch member (161) to rotate. The filtering device further comprises a second elastic member (162), which is sleeved on the connecting shaft (16) and is capable of driving the clutch member (161) to move toward the transmission wheel (51), so that the first limiting portion (1611) and the second limiting portion (511) are matched; Pressing the knob (17) can move the connecting shaft (16) toward the valve core (11), causing the clutch member (161) to disengage from the transmission wheel (51), thereby releasing the first limiting portion (1611) from the second limiting portion (511).

10. A water purifier, characterized in that: It comprises the filtering device according to any one of claims 1 to 9.

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