Filtering device and water purifying equipment

Abstract

The utility model provides a filtering device and water purifying equipment, and the filtering device comprises a mounting base body which is provided with a containing cavity; the filter element is separably arranged in the accommodating cavity, and the filter element is provided with a first locking part; the locking piece is rotatably arranged on the mounting base body and provided with a second locking part, the second locking part is provided with a first station matched with the first locking part so as to limit the filter element in the containing cavity, and the second locking part is further provided with a second station matched with the first locking part in a disengaged mode so that the filter element can be disengaged from the containing cavity; the locking piece rotates so that the second locking part can be switched between the first station and the second station. The filter element can be locked and unlocked only by shifting the locking piece to rotate, and compared with a structure for shifting the filter element to rotate and unlock in the prior art, the required locking and unlocking torque force is smaller.

Description

Technical Field

[0001] The present application relates to the technical field of water purification equipment, and in particular to a filtering device and water purification equipment. Background Art

[0002] Water purification equipment is a device that filters and purifies raw water through a filter element to reach drinking water standards. The filter element in the water purification equipment generally has a certain service life, and users need to regularly replace the filter element when it reaches the end of its service life. Therefore, this requires that the installation structure of the filter element should be easy to disassemble on the one hand, and be stable and reliable on the other hand.

[0003] At present, water purification equipment on the market generally unlocks the filter element by rotating the filter element. The unlocking torque required is relatively large. Therefore, the user needs to use a lot of force to unlock the filter element. Unlocking is labor-intensive and the user experience is poor. Utility Model Content

[0004] The embodiment of the present application provides a filtering device and a water purification device to solve the problem that unlocking is labor-intensive in the related art. The technical solution is as follows:

[0005] In a first aspect, an embodiment of the present application provides a filtering device, comprising:

[0006] A mounting base, wherein the mounting base has a receiving cavity;

[0007] A filter element, the filter element is detachably disposed in the accommodating cavity, and the filter element is provided with a first locking portion;

[0008] A locking member, wherein the locking member is rotatably disposed on the mounting base, the locking member is provided with a second locking portion, the second locking portion having a first position cooperating with the first locking portion to restrict the filter element within the accommodating cavity, the second locking portion also having a second position disengaging from the first locking portion to allow the filter element to be disengaged from the accommodating cavity, and the locking member is rotated to switch the second locking portion of the locking portion between the first position and the second position.

[0009] In one embodiment, the filtering device further comprises:

[0010] A first elastic member, one end of the first elastic member is connected to the mounting base, the other end of the first elastic member is connected to the locking member, and the first elastic member is used to provide a driving force to the locking member so that the locking member is restricted to the first station.

[0011] In one embodiment, the second locking portion has a locking groove, and the locking groove cooperates with the first locking portion.

[0012] In one embodiment, the first locking portion is provided with a first installation guiding inclined surface;

[0013] The top of the second locking portion is provided with a second installation guiding inclined surface, and the second installation guiding inclined surface is slidably matched with the first installation guiding inclined surface to guide the first locking portion to slide into cooperation with the locking groove.

[0014] In one embodiment, the locking member is provided with an operating portion, and at least a part of the operating portion is exposed outside the installation base body, and the operating portion is used for being held by a hand.

[0015] In one embodiment, among the installation base body and the locking member, one is provided with a limiting groove, and the other is provided with a limiting protrusion, and the limiting protrusion is slidably matched with the limiting groove.

[0016] In one embodiment, among the bottom wall of the accommodating cavity and the bottom wall of the filter element, one is provided with a positioning hole, and the other is provided with a first positioning protrusion, and the first positioning protrusion is matched with the positioning hole.

[0017] In one embodiment, among the side wall of the accommodating cavity and the side wall of the filter element, one is provided with a positioning groove, and the other is provided with a second positioning protrusion, and the second positioning protrusion is matched with the positioning groove.

[0018] In one embodiment, the filtering device further includes:

[0019] A second elastic member, the second elastic member is movably arranged on the installation base body, the second elastic member is located on the bottom wall of the accommodating cavity, the upper end of the second elastic member abuts against the bottom wall of the filter element, and the second elastic member is used for pushing the filter element to move in a direction away from the bottom wall of the accommodating cavity so that the first locking portion disengages from the locking member.

[0020] In one embodiment, the installation base body further has a first water flow passage, the lower end of the first water flow passage is used for communicating with a water supply device or a water using device, and the upper end of the first water flow passage extends to the bottom wall of the accommodating cavity;

[0021] The installation base body is further provided with a first elastic water stop structure, the first elastic water stop structure is vertically movably arranged on the first water flow passage, the first elastic water stop structure has a first water stop state of closing the first water flow passage and a first communication state of opening the first water flow passage, and the first elastic water stop structure can move upward under its own elastic action so that the first elastic water stop structure resets from the first communication state to the first water stop state;

[0022] The bottom of the filter element has a second water flow channel, the upper end of the second water flow channel is connected to the raw water cavity or the purified water cavity of the filter element, and the lower end of the second water flow channel is connected to the upper end of the first water flow channel;

[0023] A second elastic water-stopping structure is also provided at the bottom of the filter element. The second elastic water-stopping structure is vertically movably provided in the second water flow passage. The second elastic water-stopping structure has a second water-stopping state for closing the second water flow passage and a second connecting state for opening the second water flow passage. The second elastic water-stopping structure can move downward under its own elastic action so that the second elastic water-stopping structure is reset from the second connecting state to the second water-stopping state.

[0024] The lower end of the second elastic water-stop structure abuts against the upper end of the first elastic water-stop structure, so that the first elastic water-stop structure is switched from the first water-stop state to the first connecting state due to the thrust of the second elastic water-stop structure, and the second elastic water-stop structure is switched from the second water-stop state to the second connecting state due to the thrust of the first elastic water-stop structure.

[0025] In a second aspect, an embodiment of the present application provides a water purification device, including the above-mentioned filtering device.

[0026] The advantages or beneficial effects of the above technical solution include at least:

[0027] The filter device of the utility model comprises a mounting base, a filter element and a locking member, wherein the mounting base has a receiving cavity, the filter element can be detachably arranged in the receiving cavity, the filter element is provided with a first locking portion, the locking member is rotatably arranged on the mounting base, and the locking member is provided with a second locking portion, the second locking portion can cooperate with the first locking portion to lock the filter element to restrict the filter element in the receiving cavity, thereby realizing that the filter element is reliably locked on the mounting base to ensure that the filter element can filter water normally, and at the same time, the second locking portion can also be disengaged from the first locking portion to unlock the filter element, so that the filter element can be separated from the receiving cavity, so that the filter element can be removed from the mounting base, which is convenient for replacing the filter element or maintaining the filter element. The locking piece is rotated to switch the second locking portion between the first position and the second position, so that by turning the locking piece to rotate along the first direction, the second locking portion can be switched from the second position to the first position, thereby locking the filter element. By turning the locking piece to rotate along the second direction, the second locking portion can be switched from the first position to the second position, thereby unlocking the filter element. Whether locking or unlocking, it is only necessary to turn the locking piece to rotate. Compared with the structure of the prior art of turning the filter element to rotate and unlock, the required locking and unlocking torque is smaller. Therefore, the user only needs to use less effort to lock and unlock the filter element. Locking and unlocking are more labor-saving, which can provide users with a better user experience.

[0028] The above summary is only for the purpose of the specification and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present application will be readily apparent by reference to the drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In the drawings, unless otherwise specified, the same reference numerals throughout the several views denote the same or similar components or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in the present application and should not be regarded as limiting the scope of the present application.

[0030] Figure 1 Schematic perspective view of the filtration device of the present utility model from a first perspective;

[0031] Figure 2 Schematic perspective view of the filtration device of the present utility model from a second perspective;

[0032] Figure 3 Cross-sectional view of the filtration device of the present utility model from a first perspective;

[0033] Figure 4 For Figure 3 Partial enlarged view at A in

[0034] Figure 5 Cross-sectional view of the filtration device of the present utility model from a third perspective;

[0035] Figure 6 For Figure 5 Partial enlarged view at B in

[0036] Figure 7 Schematic perspective view of the filter element of the present utility model from a first perspective;

[0037] Figure 8 Schematic perspective view of the filter element of the present utility model from a second perspective;

[0038] Figure 9 Schematic perspective view of the base and the waterway adapter structure of the present utility model assembled together;

[0039] Figure 10 Cross-sectional view of the base and the waterway adapter structure of the present utility model assembled together;

[0040] Figure 11 Schematic perspective view of the locking member of the present utility model.

[0041] Reference Numerals

[0042] 1. Mounting base; 11. Base; 111. First positioning protrusion; 112. Avoidance groove; 12. Main housing; 121. Limiting groove; 13. Cover plate; 131. Positioning groove; 14. Waterway connection structure; 141. First water flow channel; 15. Accommodation cavity; 16. First elastic water stop structure; 161. Second elastic element; 162. First water stop member; 1621. Intermediate water passage; 17. First sealing ring; 2. Filter element; 21. First locking portion; 211. First installation guiding inclined surface; 22. Positioning hole; 23. Second positioning protrusion; 24. Second water flow channel; 241. Water inlet; 25. Second elastic water stop structure; 251. Third elastic element; 252. Second water stop member; 26. Second sealing ring; 27. Holding portion; 3. Locking member; 31. Second locking portion; 311. Locking groove; 312. Second installation guiding inclined surface; 32. Operating portion; 321. Operating groove; 33. Limiting protrusion; 4. First elastic member; 5. Second elastic member; 51. First elastic element; 52. Lifting element. Detailed implementation manner

[0043] In the following, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present application. Therefore, the drawings and the description are considered to be exemplary in nature and not restrictive.

[0044] See Figures 1 - 11 , which shows a filtering device according to a preferred embodiment of the present invention, including:

[0045] A mounting base 1, the mounting base 1 having an accommodation cavity 15;

[0046] A filter element 2, the filter element 2 being separably disposed in the accommodation cavity 15, the filter element 2 being provided with a first locking portion 21;

[0047] A locking member 3, the locking member 3 being rotatably disposed on the mounting base 1, the locking member 3 being provided with a second locking portion 31, the second locking portion 31 having a first working position that cooperates with the first locking portion 21 to limit the filter element 2 within the accommodation cavity 15, the second locking portion 31 further having a second working position that disengages from the first locking portion 21 so that the filter element 2 can be removed from the accommodation cavity 15, and the locking member 3 rotates to switch the second locking portion 31 between the first working position and the second working position.

[0048] The filter device of the utility model comprises a mounting base 1, a filter element 2 and a locking member 3, wherein the mounting base 1 has a receiving cavity 15, the filter element 2 is detachably arranged in the receiving cavity 15, the filter element 2 is provided with a first locking portion 21, the locking member 3 is rotatably arranged on the mounting base 1, and the locking member 3 is provided with a second locking portion 31, the second locking portion 31 can cooperate with the first locking portion 21 to lock the filter element 2, so as to restrict the filter element 2 in the receiving cavity 15, thereby realizing that the filter element 2 is reliably locked on the mounting base 1, ensuring that the filter element 2 can filter water normally, and at the same time, the second locking portion 31 can also be disengaged from the first locking portion 21 to unlock the filter element 2, so that the filter element 2 can be separated from the receiving cavity 15, so that the filter element 2 can be removed from the mounting base 1, and the filter element is convenient to replace. 2 or perform maintenance on the filter element 2, the locking piece 3 is rotated to switch the second locking portion 31 between the first position and the second position, so that by turning the locking piece 3 to rotate along the first direction, the second locking portion 31 can be switched from the second position to the first position, thereby locking the filter element 2, and by turning the locking piece 3 to rotate along the second direction, the second locking portion 31 can be switched from the first position to the second position, thereby unlocking the filter element 2. Whether locking or unlocking, it is only necessary to turn the locking piece 3 to rotate. Compared with the structure of turning the filter element 2 to rotate and unlock in the prior art, the required locking and unlocking torque is smaller. Therefore, the user only needs to use less effort to lock and unlock the filter element 2, and locking and unlocking are more labor-saving, which can provide the user with a better user experience.

[0049] The first direction may be a clockwise direction or a counterclockwise direction, and the second direction is opposite to the first direction.

[0050] The opening of the accommodating chamber 15 faces upward, and the filter element 2 vertically enters and exits the accommodating chamber 15 through the opening of the accommodating chamber 15 . The second locking portion 31 cooperates with the first locking portion 21 to limit the filter element 2 from escaping the accommodating chamber 15 upward.

[0051] In one embodiment, the locking member 3 is located on a side close to the opening of the accommodating chamber 15, so as to reliably lock the filter element 2. At the same time, it is convenient for the user to turn the locking member 3, and the operation is more convenient.

[0052] In one embodiment, the filtering device further comprises:

[0053] The first elastic member 4 has one end connected to the mounting base 1 and the other end connected to the locking member 3. The first elastic member 4 is used to provide a driving force to the locking member 3 so that the locking member 3 is restricted to the first working position. In this way, when installing the filter element 2, the second locking portion 31 rotates to the first working position under the driving force provided by the first elastic member 4, thereby realizing automatic locking of the filter element 2 without manual operation, which is more convenient for locking. At the same time, the driving force provided by the first elastic member 4 can be used to reliably restrict the second locking portion 31 to the first working position, preventing the second locking portion 31 from randomly disengaging from the first working position and reliably locking the filter element 2. There is no need to additionally set other structures to lock the locking member 3, which can simplify the structure, facilitate installation, and reduce the cost of the filtering device, making it more conducive to the popularization and application of the filtering device. When removing the filter element 2, a rotational force needs to be applied to the locking member 3 to overcome the driving force of the first elastic member 4, so that the second locking portion 31 rotates to the second working position, and then the filter element 2 is pulled out from the accommodating cavity 15.

[0054] See Figure 11 , in an embodiment, the number of the first elastic members 4 is multiple, and the multiple first elastic members 4 are arranged at intervals around the vertical center line of the accommodating cavity 15 to ensure that the locking member 3 can be driven to rotate in the first direction. At the same time, it is ensured that the second locking portion 31 is reliably maintained in the first working position, increasing the locking reliability of the filter element 2 and having higher structural reliability.

[0055] In an embodiment, the first elastic member 4 is specifically a spring, so that the first elastic member 4 has better elasticity, thereby realizing driving the locking member 3 to rotate in the first direction and, at the same time, reliably maintaining the second locking portion 31 in the first working position.

[0056] In other embodiments, the first elastic member 4 can also be a leaf spring structure, as long as it can drive the locking member 3 to rotate in the first direction and keep the second locking portion 31 in the first working position.

[0057] See Figures 5 - 6 and Figure 11 , in an embodiment, the second locking portion 31 has a locking groove 311, and the locking groove 311 cooperates with the first locking portion 21. By the cooperation of the locking groove 311 and the first locking portion 21, the contact area between the second locking portion 31 and the first locking portion 21 can be increased, so that the second locking portion 31 is reliably maintained in the first working position, improving the locking reliability of the filter element 2 and having higher structural reliability.

[0058] In other embodiments, the bottom surface of the second locking portion 31 cooperates with the top surface of the first locking portion 21. In this way, the filter element 2 can also be locked.

[0059] See Figures 5 - 8and Figure 11 In one embodiment, the first locking portion 21 is provided with a first installation guiding inclined surface 211;

[0060] The top of the second locking portion 31 is provided with a second installation guiding inclined surface 312, and the second installation guiding inclined surface 312 is slidably engaged with the first installation guiding inclined surface 211 to guide the first locking portion 21 to slide into engagement with the locking groove 311. Thus, during the process of inserting the filter element 2 into the accommodating cavity 15, the first installation guiding inclined surface 211 and the second installation guiding inclined surface 312 are slidably engaged, playing a role of installation guidance, making the installation smoother, improving the installation efficiency of the filter element 2. At the same time, during the sliding engagement process of the first installation guiding inclined surface 211 and the second installation guiding inclined surface 312, the filter element 2 can apply a rotational force to the locking member 3 to overcome the driving force of the first elastic member 4, causing the second locking portion 31 to switch from the first working position to the second working position, playing a role of avoiding the first locking portion 21, ensuring that the first locking portion 21 can enter the set position of the locking member 3. After the first installation guiding inclined surface 211 disengages from the second installation guiding inclined surface 312, the locking member 3 rotates along the first direction under the driving force of the first elastic member 4, causing the second locking portion 31 to reset to the first working position, so that the locking groove 311 is engaged with the first locking portion 21, ensuring reliable locking of the filter element 2, and the structural reliability is higher.

[0061] In one embodiment, the locking member 3 is arranged around the vertical center line of the accommodating cavity 15, so that the locking member 3 forms an annular structure to facilitate increasing the structural stability.

[0062] In one embodiment, the number of the first locking portions 21 is multiple, and the multiple first locking portions 21 are arranged at intervals around the vertical center line of the filter element 2;

[0063] The number of the second locking portions 31 is multiple, and the multiple second locking portions 31 are arranged at intervals around the vertical center line of the accommodating cavity 15, and each second locking portion 31 is respectively engaged with the corresponding first locking portion 21 to enhance the locking reliability of the filter element 2, and the structural reliability is higher.

[0064] See Figure 2 and Figure 11 In one embodiment, the locking member 3 is provided with an operation portion 32, and at least part of the operation portion 32 is exposed outside the installation base 1, and the operation portion 32 is used for being held by a hand. Thus, the locking member 3 can be rotated by holding the operation portion 32 with the hand, and the use is more convenient.

[0065] In one embodiment, the operation portion 32 can be arranged on the top of the installation base 1, and in other embodiments, the operation portion 32 can also be arranged on the side of the installation base 1.

[0066] See Figure 2 andFigure 11 In one embodiment, the operation part 32 has an operation groove 321 for cooperating with a hand to facilitate the hand to hold the operation part 32. At the same time, the contact area between the operation part 32 and the hand can be increased, so that the hand can reliably hold the operation part 32 to prevent slipping.

[0067] See Figure 6 In one embodiment, among the mounting base 1 and the locking member 3, one is provided with a limiting groove 121, and the other is provided with a limiting protrusion 33. The limiting protrusion 33 and the limiting groove 121 are slidably matched. In this way, during the rotation of the locking member 3, the rotation of the locking member 3 can be limited by the cooperation of the limiting protrusion 33 and the limiting groove 121, so as to limit the rotation stroke of the locking member 3, avoid the too long rotation stroke of the locking member 3 from reducing the locking and unlocking efficiency, that is, it can play a role in improving the locking and unlocking efficiency. At the same time, through the slidable cooperation of the limiting protrusion 33 and the limiting groove 121, the rotation of the locking member 3 is guided, so that the locking member 3 rotates more smoothly, avoiding jamming, and the locking and unlocking are smoother, and the operation feel is better.

[0068] See Figure 8 and Figure 9 In one embodiment, among the bottom wall of the accommodating cavity 15 and the bottom wall of the filter element 2, one is provided with a positioning hole 22, and the other is provided with a first positioning protrusion 111. The first positioning protrusion 111 and the positioning hole 22 cooperate to realize the installation and positioning of the filter element 2, which can improve the connection stability between the filter element 2 and the mounting base 1, and the structural reliability is higher. At the same time, it ensures the correct installation of the filter element 2, so that the filter element 2 can filter water normally.

[0069] See Figure 2 In one embodiment, among the side wall of the accommodating cavity 15 and the side wall of the filter element 2, one is provided with a positioning groove 131, and the other is provided with a second positioning protrusion 23. The second positioning protrusion 23 and the positioning groove 131 cooperate to realize the installation and positioning of the filter element 2, which can further improve the connection stability between the filter element 2 and the mounting base 1, and the structural reliability is higher.

[0070] See Figure 2 In one embodiment, the positioning groove 131 is provided on one side close to the opening of the accommodating cavity 15, so that the user can visually observe whether the second positioning protrusion 23 cooperates with the positioning groove 131, thereby facilitating the user to confirm whether the filter element 2 is correctly installed and making the installation more convenient.

[0071] See Figures 9 - 10 In one embodiment, the filtering device further includes:

[0072] The second elastic member 5 is movably disposed on the mounting base 1. The second elastic member 5 is located on the bottom wall of the accommodation cavity 15. The upper end of the second elastic member 5 abuts against the bottom wall of the filter element 2. The second elastic member 5 is used to push the filter element 2 in a direction away from the bottom wall of the accommodation cavity 15, so that the first locking portion 21 is disengaged from the locking member 3. In this way, when the locking member 3 is toggled to rotate so that the second locking portion 31 is disengaged from the first locking portion 21, the second elastic member 5 resets and pushes the filter element 2 upward, so that the first locking portion 21 is disengaged from the locking member 3. After the filter element 2 bounces up a certain height, the filter element 2 can be manually pulled out of the accommodation cavity 15, which can reduce the difficulty of pulling up the filter element 2 and make the disassembly of the filter element 2 more convenient.

[0073] See Figure 10 , in an embodiment, the mounting base 1 has an avoidance groove 112. The avoidance groove 112 is located on the bottom wall of the accommodation cavity 15. The second elastic member 5 is telescopically movably disposed in the avoidance groove 112. The second elastic member 5 has an avoidance state in which it is received in the avoidance groove 112 to avoid the filter element 2 after the filter element 2 is inserted into the accommodation cavity 15, so that the bottom of the filter element 2 fits against the bottom wall of the accommodation cavity 15, so that the filter element 2 is reliably mounted on the mounting base 1. At the same time, it can also play a role in reducing the height dimension of the filtering device, making the structure of the filtering device more compact. The second elastic member 5 also has an extended state in which the upper end extends out of the avoidance groove 112, so that the upper end of the second elastic member 5 can abut against the bottom of the unlocked filter element 2, thereby pushing the filter element 2 upward.

[0074] See Figure 10 , in an embodiment, the second elastic member 5 includes a first elastic element 51 and a jacking element 52. The first elastic element 51 is disposed in the avoidance groove 112. The lower end of the first elastic element 51 is connected to the mounting base 1. The upper end of the first elastic element 51 is connected to the jacking element 52. The jacking element 52 can switch between the above avoidance state and the extended state. The jacking element 52 can abut against the bottom of the filter element 2 to push the filter element 2 upward. The second elastic member 5 abuts against the filter element 2 through the harder jacking element 52, which can increase the abutting stability between the upper end of the second elastic member 5 and the filter element 2, thereby pushing the filter element 2 to move upward stably, and the structural reliability is higher.

[0075] In an embodiment, the first elastic element 51 is a spring, so that the first elastic element 51 has better elastic performance to ensure that the filter element 2 can be pushed upward.

[0076] In other embodiments, the first elastic element 51 can also be a shrapnel structure, as long as it can realize pushing the filter element 2 upward.

[0077] In one embodiment, for the convenience of disassembling and assembling the filter element 2, a holding portion 27 is provided on the top of the filter element 2 for holding by a hand.

[0078] See Figures 3 - 4 , in one embodiment, the installation base 1 further has a first water flow channel 141. The lower end of the first water flow channel 141 is used to communicate with a water supply device or a water using device, and the upper end of the first water flow channel 141 extends to the bottom wall of the accommodation cavity 15;

[0079] The installation base 1 is further provided with a first elastic water stop structure 16. The first elastic water stop structure 16 is vertically movably arranged on the first water flow channel 141. The first elastic water stop structure 16 has a first water stop state of closing the first water flow channel 141 and a first communication state of opening the first water flow channel 141. The first elastic water stop structure 16 can move upward under its own elastic action so that the first elastic water stop structure 16 is reset from the first communication state to the first water stop state;

[0080] The bottom of the filter element 2 has a second water flow channel 24. The upper end of the second water flow channel 24 communicates with the raw water cavity or the purified water cavity of the filter element 2, and the lower end of the second water flow channel 24 communicates with the upper end of the first water flow channel 141;

[0081] The bottom of the filter element 2 is further provided with a second elastic water stop structure 25. The second elastic water stop structure 25 is vertically movably arranged in the second water flow channel 24. The second elastic water stop structure 25 has a second water stop state of closing the second water flow channel 24 and a second communication state of opening the second water flow channel 24. The second elastic water stop structure 25 can move downward under its own elastic action so that the second elastic water stop structure 25 is reset from the second communication state to the second water stop state;

[0082] The lower end of the second elastic water stop structure 25 abuts against the upper end of the first elastic water stop structure 16, so that the first elastic water stop structure 16 is switched from the first water stop state to the first communication state under the thrust of the second elastic water stop structure 25, and the second elastic water stop structure 25 is switched from the second water stop state to the second communication state under the thrust of the first elastic water stop structure 16.Thus, after the filter element 2 is disposed in the accommodation cavity 15 and locked, the lower end of the second elastic water stop structure 25 abuts against the upper end of the first elastic water stop structure 16, so that the first elastic water stop structure 16 moves downward under the thrust of the second elastic water stop structure 25 until the first elastic water stop structure 16 switches from the first water stop state to the first communication state, realizing the opening of the first water flow channel 141. At the same time, the second elastic water stop structure 25 moves upward under the thrust of the first elastic water stop structure 16 until the second elastic water stop structure 25 switches from the second water stop state to the second communication state, realizing the opening of the second water flow channel 24. In addition, when both the first water flow channel 141 and the second water flow channel 24 are water inlet channels, the lower end of the first water flow channel 141 can be connected to the water supply device, the upper end of the second water flow channel 24 is connected to the raw water chamber of the filter element 2, and the lower end of the second water flow channel 24 is connected to the upper end of the first water flow channel 141, so that the water output by the water supply device can enter the raw water chamber of the filter element 2 after passing through the first water flow channel 141 and the second water flow channel 24 in sequence, and then obtain purified water through filtration by the filter element 2, and the purified water flows to the purified water chamber. In addition, when both the first water flow channel 141 and the second water flow channel 24 are water outlet channels, the lower end of the first water flow channel 141 can be connected to the water using device, the upper end of the second water flow channel 24 is connected to the purified water chamber of the filter element 2, and the lower end of the second water flow channel 24 is connected to the upper end of the first water flow channel 141, so that the water output from the purified water chamber can be delivered to the water using device for drinking after passing through the second water flow channel 24 and the first water flow channel 141 in sequence, realizing the automatic connection of the first water flow channel 141 and the second water flow channel 24 after the filter element 2 is inserted, without manual operation, and the connection of the inlet and outlet waterways is convenient. In addition, when the filter element 2 is removed from the accommodation cavity 15, the lower end of the second elastic water stop structure 25 is disengaged from the upper end of the first elastic water stop structure 16, and the first elastic water stop structure 16 can move upward under its own elastic action, so that the first elastic water stop structure 16 is reset from the first communication state to the first water stop state, realizing the automatic closing of the first water flow channel 141. The second elastic water stop structure 25 can move downward under its own elastic action, so that the second elastic water stop structure 25 is reset from the second communication state to the second water stop state, realizing the automatic closing of the second water flow channel 24, eliminating manual operation. In addition, during the reset process of the first elastic water stop structure 16, the first elastic water stop structure 16 moves upward and can push the filter element 2 upward, and jointly with the second elastic member 5, pushes the filter element 2 to bounce up a certain distance, which can reduce the burden on the second elastic member 5, and thus is beneficial to reducing the number of the second elastic members 5 used, and can simplify the structure while also being beneficial to reducing costs.

[0083] See Figure 4 , in an embodiment, at least part of the cross-section of the first water flow channel 141 gradually decreases from bottom to top;

[0084] The first elastic water stop structure 16 has an intermediate water passage 1621. The intermediate water passage 1621 communicates with the second water flow passage 24. The first elastic water stop structure 16 is also provided with a first sealing ring 17.

[0085] When the first elastic water stop structure 16 is in the first communication state, the first sealing ring 17 is in clearance fit with the inner wall of the lower end of the first water flow passage 141, so that the first water flow passage 141 communicates with the intermediate water passage 1621, thereby opening the first water flow passage 141 and enabling the first water flow passage 141 to communicate with the second water flow passage 24.

[0086] When the first elastic water stop structure 16 is in the first water stop state, the first sealing ring 17 abuts against the inner wall of the upper end of the first water flow passage 141 to block the communication between the first water flow passage 141 and the intermediate water passage 1621, thereby closing the first water flow passage 141 and blocking the communication between the first water flow passage 141 and the second water flow passage 24. The water stop of the first water flow passage 141 is realized by the cooperation of the first sealing ring 17 and the first elastic water stop structure 16. The structure is simple and practical, the water stop reliability is high, and the cost is low, which is beneficial to reducing the cost of the filtering device.

[0087] See Figure 4 , in an embodiment, the first elastic water stop structure 16 includes a second elastic element 161 and a first water stop member 162. The lower end of the second elastic element 161 is connected to the installation base 1, the upper end of the second elastic element 161 is connected to the first water stop member 162, the first sealing ring 17 is sleeved on the first water stop member 162, and the intermediate water passage 1621 is arranged on the first water stop member 162. This first elastic water stop structure 16 is simple and practical, has high reliability, and low cost, which is beneficial to reducing the cost of the filtering device.

[0088] In an embodiment, the second elastic element 161 can be a spring. In other embodiments, the second elastic element 161 can also be a leaf spring structure.

[0089] See Figure 4 and Figure 8 , in an embodiment, the filter element 2 is provided with a second sealing ring 26, and the second sealing ring 26 is arranged on the inner wall of the second water flow passage 24.

[0090] The inner wall of the upper end of the second water flow passage 24 has a water inlet 241. The water inlet 241 communicates the second water flow passage 24 with the raw water chamber of the filter element 2, or the water inlet 241 communicates the second water flow passage 24 with the purified water chamber of the filter element 2.

[0091] When the second elastic water stop structure 25 is in the second communication state, the second elastic water stop structure 25 is located above the water passing port 241, so that the second water passing channel 24 communicates with the water passing port 241, thereby realizing the opening of the second water passing channel 24 and enabling the second water passing channel 24 to communicate with the first water passing channel 141;

[0092] When the second elastic water stop structure 25 is in the second water stop state, the second elastic water stop structure 25 cooperates with the second sealing ring 26 to block the communication between the second water passing channel 24 and the water passing port 241, thereby closing the second water passing channel 24 and blocking the communication between the second water passing channel 24 and the first water passing channel 141. The water stop of the second water passing channel 24 is realized by the cooperation of the water passing port 241, the second sealing ring 26 and the second elastic water stop structure 25. The structure is simple and practical, the water stop reliability is high, the cost is low, and it is beneficial to reduce the cost of the filtering device.

[0093] See Figure 4 , in an embodiment, the second elastic water stop structure 25 includes a third elastic element 251 and a second water stop member 252. The upper end of the third elastic element 251 is connected to the filter element 2, the lower end of the third elastic element 251 is connected to the second water stop member 252, and the second water stop member 252 is inserted and cooperated with the second sealing ring 26 to realize the water stop of the second water passing channel 24. This second elastic water stop structure 25 is simple and practical, the water stop reliability is high, the cost is low, and it is beneficial to reduce the cost of the filtering device.

[0094] In an embodiment, the third elastic element 251 can be a spring. In other embodiments, the third elastic element 251 can also be a leaf spring structure.

[0095] See Figures 1 - 2 , to reduce the manufacturing difficulty of the installation base 1 and the assembly difficulty, in an embodiment, the installation base 1 includes a base 11, a main housing 12, a cover plate 13 and a water path transfer structure 14. The base 11, the main housing 12 and the cover plate 13 are arranged in sequence from bottom to top along the installation base 1. The base 11, the main housing 12 and the cover plate 13 enclose a receiving cavity 15. The water path transfer structure 14 is arranged on the bottom of the base 11, and the water path transfer structure 14 is provided with the above-mentioned first water passing channel 141 and the first elastic water stop structure 16;

[0096] The locking member 3 is located inside the installation base 1. The locking member 3 is arranged between the top of the main housing 12 and the bottom of the cover plate 13 to vertically limit the locking member 3 by using the main housing 12 and the cover plate 13, thereby realizing the reliable installation of the locking member 3 on the installation base 1.

[0097] A preferred embodiment of the present utility model provides a water purification device, including the above-mentioned filtering device.

[0098] The water purification device of the present utility model, due to the adoption of the above-mentioned filtering device, can also reduce the locking and unlocking torque forces of the filter element 2, making the disassembly and assembly of the filter element 2 more convenient and improving the user experience.

[0099] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0100] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined.

[0101] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of various changes or substitutions, and these should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A filtering device, characterized in that: include: A mounting base, wherein the mounting base has a receiving cavity; A filter element, the filter element is detachably disposed in the accommodating cavity, and the filter element is provided with a first locking portion; A locking member, wherein the locking member is rotatably disposed on the mounting base, the locking member is provided with a second locking portion, the second locking portion having a first position cooperating with the first locking portion to restrict the filter element within the accommodating cavity, the second locking portion also having a second position disengaging from the first locking portion to allow the filter element to be disengaged from the accommodating cavity, and the locking member is rotated to switch the second locking portion of the locking portion between the first position and the second position.

2. The filtering device according to claim 1, characterized in that: The filtering device also includes: A first elastic member, one end of the first elastic member is connected to the mounting base, the other end of the first elastic member is connected to the locking member, and the first elastic member is used to provide a driving force to the locking member so that the locking member is restricted to the first station.

3. The filtering device according to claim 1, characterized in that: The second locking portion has a locking groove, and the locking groove cooperates with the first locking portion.

4. The filtering device according to claim 3, characterized in that: The first locking portion is provided with a first installation guide inclined surface; A second installation guide slope is provided on the top of the second locking portion, and the second installation guide slope is slidably matched with the first installation guide slope to guide the first locking portion to slide to match with the locking groove.

5. The filtering device according to claim 1, characterized in that: The locking member is provided with an operating portion, at least a portion of which is exposed outside the mounting base, and the operating portion is used for being held by a hand.

6. The filtering device according to claim 1, characterized in that: One of the installation base and the locking member is provided with a limiting groove, and the other is provided with a limiting protrusion, and the limiting protrusion is slidably matched with the limiting groove.

7. The filtering device according to any one of claims 1 to 6, characterized in that: One of the bottom wall of the accommodating cavity and the bottom wall of the filter element is provided with a positioning hole, and the other is provided with a first positioning protrusion, and the first positioning protrusion cooperates with the positioning hole; And / or, one of the side wall of the accommodating cavity and the side wall of the filter element is provided with a positioning groove, and the other is provided with a second positioning protrusion, and the second positioning protrusion cooperates with the positioning groove.

8. The filtering device according to any one of claims 1 to 6, characterized in that: The filtering device also includes: A second elastic member, the second elastic member is movably arranged on the mounting base, the second elastic member is located on the bottom wall of the accommodating cavity, the upper end of the second elastic member is against the bottom wall of the filter element, and the second elastic member is used to push the filter element to move away from the bottom wall of the accommodating cavity so that the first locking portion disengages from the locking member.

9. The filtering device according to any one of claims 1 to 6, characterized in that: The mounting base also has a first water flow channel, the lower end of which is used to connect to a water supply device or a water use device, and the upper end of which extends to the bottom wall of the accommodating cavity; The mounting base is further provided with a first elastic water-stopping structure, which is vertically movably arranged on the first water flow passage, and has a first water-stopping state for closing the first water flow passage and a first connecting state for opening the first water flow passage, and the first elastic water-stopping structure can move upward under its own elastic action, so that the first elastic water-stopping structure is reset from the first connecting state to the first water-stopping state; The bottom of the filter element has a second water flow channel, the upper end of the second water flow channel is connected to the raw water cavity or the purified water cavity of the filter element, and the lower end of the second water flow channel is connected to the upper end of the first water flow channel; A second elastic water-stopping structure is also provided at the bottom of the filter element. The second elastic water-stopping structure is vertically movably provided in the second water flow passage. The second elastic water-stopping structure has a second water-stopping state for closing the second water flow passage and a second connecting state for opening the second water flow passage. The second elastic water-stopping structure can move downward under its own elastic action so that the second elastic water-stopping structure is reset from the second connecting state to the second water-stopping state. The lower end of the second elastic water-stop structure abuts against the upper end of the first elastic water-stop structure, so that the first elastic water-stop structure is switched from the first water-stop state to the first connecting state due to the thrust of the second elastic water-stop structure, and the second elastic water-stop structure is switched from the second water-stop state to the second connecting state due to the thrust of the first elastic water-stop structure.

10. A water purification device, characterized in that: A filter device comprising any one of claims 1 to 9.

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