Filter element replacement structure and water purifier comprising same

Abstract

The utility model provides a filter element replacement structure and a water purifier including the same, the filter element replacement structure is arranged in a water purifier shell, the water purifier shell is internally provided with a containing hole for containing a filter element, the containing hole is used for positioning the filter element along the radial direction of the filter element, the filter element replacement structure comprises a locking groove, a locking part and a locking part, the lock groove is formed in the outer surface of the filter element in a protruding manner, extends towards the water purifier shell in the radial direction of the filter element, and is positioned on the first side of the filter element; the locking part is arranged on the peripheral side of the filter element in a sleeving mode, the first side, corresponding to the filter element, of the locking part is provided with a spring bolt matched with the locking groove, the side, corresponding to the opposite side of the spring bolt, of the locking part is provided with a movement space, and the locking part reciprocates in the radial direction of the filter element through the movement space; when the lock tongue is matched with the lock groove, the filter element is positioned by the locking part and the lock groove along the axial direction of the filter element.

Description

TECHNICAL FIELD

[0001] The utility model relates to a filter core replacement structure and a water purifier comprising the same. BACKGROUND

[0002] The filter core replacement structure of the water purifier on the market is mostly of a rotating screw-in type, and the user is more laborious when replacing the filter core by himself, and meanwhile, the installation handle of the filter core is exposed, which affects the surface flatness and the overall aesthetic degree of the water purifier to a certain extent. UTILITY MODEL CONTENTS

[0003] The utility model solves the technical problem of overcoming the defect of laborious filter core replacement in the prior art and provides a filter core replacement structure and a water purifier comprising the same.

[0004] The utility model solves the above technical problem through the following technical scheme:

[0005] A filter core replacement structure is arranged in a water purifier shell, the water purifier shell has a containing hole for containing a filter core, the containing hole is used for positioning the filter core along the radial direction of the filter core, and the filter core replacement structure comprises:

[0006] A lock slot is protrusively arranged on the outer surface of the filter core, the lock slot extends along the radial direction of the filter core towards the water purifier shell, and the lock slot is located at the first side of the filter core.

[0007] A locking part is sleeved on the outer circumferential side of the filter core, the locking part is provided with a lock tongue matched with the lock slot at the first side of the filter core, the locking part is provided with a movement space at the opposite side of the lock tongue, the locking part reciprocates along the radial direction of the filter core through the movement space, and when the lock tongue is matched with the lock slot, the locking part and the lock slot position the filter core along the axial direction of the filter core.

[0008] In the scheme, the locking portion cooperates with the locking slot to position the filter element in the axial direction, and on the basis of positioning the filter element in the radial direction of the accommodating hole, the filter element is ensured to be installed in place, which is more labor-saving than the way of screwing the filter element into the water purifier shell. The first side of the filter element is provided with the locking slot, which occupies less space in the radial direction of the filter element than the way of spacing multiple locking slots on the outer circumferential side of the filter element. The locking portion moves on the outer circumferential side of the filter element and drives the locking tongue to approach or move away from the locking slot, thereby reducing the transmission mechanism setting, and only the locking slot locking tongue is provided on the first side of the filter element, so that the space of the remaining side of the filter element is saved, and the movement space avoids interfering with the filter element when the locking portion moves. The filter element replacement structure is arranged in the water purifier shell to avoid protruding from the water purifier shell, thereby preventing the water purifier shell from being uneven and unattractive.

[0009] Preferably, the locking slot and the locking portion are located on the same horizontal plane.

[0010] In the scheme, the above arrangement makes the locking portion and the locking slot occupy less space inside the accommodating hole, and the locking portion can directly unlock or lock the filter element when it moves, thereby reducing the transmission mechanism setting, saving costs, and making the filter element installation and removal more labor-saving without driving the transmission mechanism.

[0011] Preferably, a stepped hole is formed in the inner wall of the accommodating hole, the stepped hole has a stepped surface, the filter element replacement structure further comprises a button, the button is arranged in the stepped hole and abuts against the locking portion, a limiting portion is arranged on the first end of the button corresponding to the stepped surface, and a first elastic member is arranged between the limiting portion and the stepped surface.

[0012] In the scheme, the above arrangement enables the button to be pressed and drive the locking portion to move, and the first elastic member provides a button return spring force to improve the reusability.

[0013] Preferably, the limiting portion is arranged flush with the water purifier shell, or the limiting portion extends into the stepped hole and away from the water purifier shell.

[0014] In the scheme, the above arrangement makes the button always flush with the water purifier shell or lower than the water purifier shell, keeps the surface of the water purifier shell flat, and makes it more beautiful and tidy. The use experience of the user is improved.

[0015] Preferably, the inner wall of the accommodating hole is further provided with an accommodating groove corresponding to the locking portion, the stepped hole and the accommodating groove are communicated, and the locking portion is arranged in the accommodating groove.

[0016] In the present scheme, the locking portion moves along the radial direction of the filter element and is arranged in the accommodating groove, so that the locking portion does not protrude outside the water purifier shell.

[0017] Preferably, the bottom of the accommodating hole is provided with a buffer portion, when the filter element is locked in the accommodating hole by the locking portion and the locking groove, the end of the filter element abuts against the buffer portion and the end of the filter element away from the buffer portion is arranged flush with the water purifier shell.

[0018] In the present scheme, the filter element is arranged in the accommodating hole, and the filter element does not protrude outside the water purifier shell.

[0019] Preferably, the buffer portion comprises a boss extending from the bottom of the accommodating hole along the axial direction of the accommodating hole.

[0020] In the present scheme, the boss abuts against the end of the filter element to position the filter element in the accommodating hole along the axial direction.

[0021] Preferably, the buffer portion further comprises a second elastic member sleeved on the boss, when the second elastic member does not abut against the end of the filter element, the size of the second elastic member along the axial direction of the accommodating hole is greater than the size of the boss.

[0022] In the present scheme, the second elastic member contacts the end of the filter element before the boss, so as to slow down the force when the filter element is arranged in the accommodating hole, the locking tongue and the locking groove cooperate to position the filter element and compress the second elastic member, so that the filter element is ejected from the accommodating hole by the second elastic member when the filter element is disassembled, which is convenient for users to take and place.

[0023] Preferably, the locking tongue is provided with a guide surface corresponding to the locking groove.

[0024] In the present scheme, the guide surface is arranged on the locking tongue corresponding to the locking groove, so as to improve the success rate of cooperation between the locking tongue and the locking groove.

[0025] A water purifier comprises the filter element replacement structure as described above.

[0026] In the present scheme, the water purifier comprises the filter element replacement structure, the internal space of the water purifier is reasonably utilized, and the surface of the water purifier shell is flat and beautiful after the filter element is arranged in the water purifier. The filter element is more labor-saving to install and disassemble, and the user experience is correspondingly improved.

[0027] The utility model discloses a positive progress effect lies in: the utility model discloses through setting locking portion and lock groove cooperation, to the filter core along the axial direction positioning, and, in the filter core with the containing hole along the radial direction positioning filter core foundation, guarantee filter core installation in place, compared with the mode that the filter core is screwed and is installed to the water purifier shell, its installation and disassembly are more labor saving. The first side of filter core sets lock groove, compared with the mode that the filter core's outer circumferential side interval sets multiple lock grooves, its space occupation is less to filter core radial direction. Locking portion moves on the outer circumferential side of filter core and drives lock tongue to approach or be far from lock groove, to reduce transmission mechanism setting, and only in the mode that the filter core first side sets lock groove lock tongue, make filter core remaining side department's space be able to save, and the movement space avoids filter core when locking portion moves, prevent interference with filter core. Filter core replacement structure sets up in the water purifier shell, to avoid the convex water purifier shell setting, prevent the water purifier shell uneven, unattractive situation. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is the perspective drawing of the water purifier shell of a preferable embodiment of the utility model.

[0029] Figure 2 It is the position relation diagram of filter core replacement structure and filter core of a preferable embodiment of the utility model.

[0030] Figure 3 It is the position relation diagram of lock groove and locking portion of a preferable embodiment of the utility model.

[0031] Figure 4 It is the position relation diagram of lock groove and filter core of a preferable embodiment of the utility model.

[0032] Figure 5 It is the position relation diagram of locking portion and lock tongue of a preferable embodiment of the utility model.

[0033] Figure 6 It is the position relation diagram of containing groove and water purifier shell of a preferable embodiment of the utility model.

[0034] Figure 7 It is the perspective drawing of button of a preferable embodiment of the utility model.

[0035] BRIEF DESCRIPTION OF DRAWINGS

[0036] Water purifier shell 10

[0037] Filter core 11

[0038] Containing hole 12

[0039] Containing groove 121

[0040] Lock groove 1

[0041] Locking portion 2

[0042] latch 21

[0043] guide surface 211

[0044] movement space 22

[0045] stepped hole 3

[0046] button 4

[0047] limiting portion 41

[0048] first elastic member 42

[0049] cushion 5

[0050] boss 51

[0051] second elastic member 52 DETAILED DESCRIPTION

[0052] A preferred embodiment is described below in conjunction with the accompanying drawings so as to make the present application more comprehensible and complete.

[0053] The present embodiment provides a filter core replacement structure, and the specific structure is shown in Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 The filter core replacement structure is arranged in a water purifier shell 10, the water purifier shell 10 has a containing hole 12 containing a filter core 11, the containing hole 12 is used for positioning the filter core 11 along the radial direction of the filter core 11, and the filter core replacement structure comprises:

[0054] A lock slot 1 is arranged on the outer surface of the filter core 11, the lock slot 1 extends along the radial direction of the filter core 11 towards the water purifier shell 10, and the lock slot 1 is located on the first side of the filter core 11.

[0055] A locking portion 2 is arranged on the outer circumferential side of the filter core 11, the locking portion 2 is provided with a latch 21 matched with the lock slot 1 on the first side of the filter core 11, the locking portion 2 is provided with a movement space 22 on the opposite side of the latch 21, the locking portion 2 reciprocates along the radial direction of the filter core 11 through the movement space 22, and when the latch 21 is matched with the lock slot 1, the locking portion 2 and the lock slot 1 position the filter core 11 along the axial direction of the filter core 11.

[0056] Specifically, the lock groove 1 is a rectangular groove and is arranged on the outer surface of the filter element 11. The side of the lock groove 1 facing the filter element 11 is arc-shaped to fit the outer surface of the filter element 11, thereby improving the stability of the connection between the lock groove 1 and the filter element 11. The locking portion 2 is a frame. In this embodiment, the locking portion 2 is a square frame. In other embodiments, the locking portion 2 can also be a rectangular frame or an oval frame. The locking portion 2 is provided with a locking tongue 21 on the first side corresponding to the filter element 11. The side of the locking portion 2 opposite to the first side of the filter element 11 is provided with a movement space 22. When the locking portion 2 reciprocates along the radial direction of the filter element 11 after the filter element 11 is positioned in the radial direction through the accommodating hole 12, the filter element 11 is avoided through the movement space 22, thereby preventing interference with the locking portion 2. The first side of the filter element 11 is provided with the lock groove 1. Compared with the mode in which a plurality of lock grooves 1 are arranged on the outer circumferential side of the filter element 11, the space occupation in the radial direction of the filter element 11 is less. Moreover, the mode in which the lock groove 1 and the locking tongue 21 are arranged on the first side of the filter element 11 saves the space of the remaining side of the filter element 11.

[0057] It can be understood that the locking tongue 21 is arranged on the inner wall of the locking portion 2 facing the first side of the filter element 11. The locking tongue 21 is fixedly connected with or integrally formed with the locking portion 2. The locking portion 2 drives the locking tongue 21 to approach or move away from the lock groove 1. When the locking tongue 21 cooperates with the lock groove 1, the filter element 11 is positioned in the axial direction. After the filter element 11 is positioned in the radial direction through the accommodating hole 12, the filter element 11 is ensured to be installed in place. Compared with the mode in which the filter element 11 is screwed into the water purifier shell 10, the installation and disassembly are more labor-saving. At the same time, the locking portion 2 moves on the outer circumferential side of the filter element 11 and drives the locking tongue 21 to approach or move away from the lock groove 1, thereby reducing the arrangement of the transmission mechanism.

[0058] The filter element replacement structure in this embodiment is arranged in the water purifier shell 10, thereby avoiding protruding from the water purifier shell 10, preventing the surface of the water purifier shell 10 from being uneven and unattractive.

[0059] Further, in this embodiment, the lock groove 1 and the locking portion 2 are located on the same horizontal plane. When the locking portion 2 moves in the radial direction of the filter element 11, the lock groove 1 and the locking portion 2 are located on the same horizontal plane, so that the locking tongue 21 is also located on the same horizontal plane as the lock groove 1. Compared with the mode in which the lock groove 1 and the locking tongue 21 are arranged on different horizontal planes, the space occupation in the accommodating hole 12 is less. The locking portion 2 can directly unlock or lock the filter element 11 when moving, thereby reducing the arrangement of the transmission mechanism between the locking portion 2 and the lock groove 1, saving costs, and making the installation and disassembly of the filter element 11 more labor-saving without driving the transmission mechanism to move.

[0060] In the embodiment, the lock slot 1 is arranged close to the end of the filter element 11, the end of the filter element 11 has a filter element head, the filter element head is connected to the end of the filter element 11 in a rotomolded manner, and the lock slot 1 is integrally formed with the filter element head in a rotomolded manner to achieve the arrangement of the lock slot 1 on the outer surface of the filter element 11 in the radial direction.

[0061] In the embodiment, the inner wall of the accommodating hole 12 is provided with a stepped hole 3, the stepped hole 3 has a stepped surface, and the filter element replacement structure further comprises a button 4, the button 4 is arranged in the stepped hole 3 and abuts against the locking part 2, the first end of the button 4 is provided with a limiting part 41 corresponding to the stepped surface, and a first elastic member 42 is arranged between the limiting part 41 and the stepped surface.

[0062] Specifically, the water purifier shell 10 is provided with a stepped hole 3, the stepped hole 3 penetrates from the surface of the water purifier shell 10 into the accommodating hole 12, and the button 4 is arranged in the stepped hole 3 to drive the locking part 2 to move by pressing the button 4. Figure 7 As shown in the figure, the button 4 is a cylindrical rod, the first end of the cylindrical rod is provided with a limiting part 41 corresponding to the stepped surface, the size of the limiting part 41 is larger than the diameter of the rod, so that when the button 4 is pressed, the limiting part 41 abuts against the stepped surface, thereby limiting the running stroke of the locking part 2 when the button 4 abuts against the locking part 2. The stepped hole 3, the limiting part 41 and the button 4 are the same shape to prevent interference. In addition, a first elastic member 42 is arranged between the limiting part 41 and the stepped surface, the first elastic member 42 is a spring and is sleeved on the button 4, when the button 4 is pressed by the operator, the limiting part 41 squeezes the first elastic member 42, and the first elastic member 42 is limited by the stepped surface, the compressed first elastic member 42 has a restoring force to move the limiting part 41 away from the stepped surface, when the second end of the button 4, i.e. the end away from the limiting part 41, is fixedly connected with the locking part 2, the button 4 can drive the locking part 2 to move when it is reset, so that the locking part 2 moves along the radial direction of the filter element 11 to approach the lock slot 1, thereby realizing the cooperation of the locking tongue 21 and the lock slot, i.e. locking the filter element 11 in the accommodating hole 12. The whole process does not need to be manually operated, and the locking part 2 does not need to be driven to move by squeezing the parts, but only needs to be reset and moved by the first elastic member 42, which is more labor-saving and improves the reusability.

[0063] In the embodiment, the limiting part 41 is arranged flush with the water purifier shell 10. It can be understood that, in the initial state, i.e. when the button 4 is not moved into the stepped hole 3, the limiting part 41 is arranged flush with the water purifier shell 10, which can keep the surface of the water purifier shell flat, making it more beautiful and tidy, thereby improving the user experience.

[0064] In other embodiments, the limiting portion 41 can also extend into the stepped hole 3 and away from the water purifier shell 10. That is, the limiting portion 41 has already extended into the stepped hole 3, i.e. is lower than the outer surface of the water purifier shell 10, when the button 4 is in the initial state, i.e. is not moved towards the stepped hole 3. In this way, the outer surface of the water purifier shell 10 is also free of protruding structures, keeping the surface of the water purifier shell flat and making it more aesthetically pleasing and neat.

[0065] As shown in the drawings, Figure 6 In this embodiment, the inner wall of the accommodating hole 12 corresponding to the locking portion 2 is also provided with an accommodating groove 121, the stepped hole 3 communicates with the accommodating groove 121, and the locking portion 2 is arranged in the accommodating groove 121.

[0066] Specifically, the accommodating groove 121 is arranged along the radial direction of the accommodating hole 12 and corresponds to the horizontal plane where the locking groove 1 is arranged, and the stepped hole 3 penetrates the accommodating groove 121 to realize the connection or abutment of the button 4 and the locking portion 2.

[0067] It should be noted that when the button 4 abuts against the locking portion 2, the side of the accommodating groove 121 away from the stepped hole 3 is also provided with a spring to drive the locking portion 2 to move after the button 4 is reset by the first elastic member 42, so that the locking tongue 21 of the locking portion 2 moves towards the locking groove 1. The locking portion 2 is located in the accommodating groove 121, avoiding the protruding arrangement of the locking portion 2 on the water purifier shell 10, and always keeping the flatness of the water purifier shell 10. It can be understood that the locking portion 2 and the accommodating groove 121 arranged along the radial direction of the accommodating hole 12 occupy less axial space in the water purifier shell 10 than the locking structure arranged along the axial direction of the accommodating hole 12, so that the thickness dimension of the water purifier shell 10 can be correspondingly reduced, facilitating the arrangement of the water purifier in a smaller space.

[0068] In this embodiment, the bottom of the accommodating hole 12 is provided with a buffer portion 5, when the filter element 11 is locked in the accommodating hole 12 by the locking portion 2 and the locking groove 1, the end of the filter element 11 abuts against the buffer portion 5 and the end of the filter element 11 away from the buffer portion 5 is flush with the water purifier shell 10.

[0069] Specifically, the buffer portion 5 is located at the bottom of the accommodating hole 12 to avoid the end of the filter element 11 directly contacting the bottom of the accommodating hole 12 when the filter element 11 is installed in the accommodating hole 12, preventing damage to the filter element 11. In addition, the end of the filter element 11 away from the buffer portion 5, i.e. the filter element head, does not protrude from the outer surface of the water purifier shell 10 after the filter element 11 is installed, so that the surface of the water purifier shell 10 is always kept flat after the filter element 11 is installed.

[0070] In this embodiment, the buffer portion 5 includes a boss 51 extending from the bottom of the accommodating hole 12 along the axial direction of the accommodating hole 12.

[0071] Specifically, the boss 51 is a cylindrical structure, the boss 51 extends from the bottom of the hole towards the axial direction of the accommodating hole 12, so that when the filter element 11 is installed into the accommodating hole 12, by abutting with the boss 51, the end of the filter element 11 is prevented from directly contacting the bottom of the accommodating hole 12. And by the boss 51 being positioned in the axial direction of the accommodating hole 12 for the filter element 11, it is kept that when the filter element 11 is installed into the accommodating hole 12, the end of the filter element 11 away from the buffer part 5 does not protrude out of the water purifier shell 10.

[0072] Further, the buffer part 5 further comprises a second elastic member 52, the second elastic member 52 is sleeved on the boss 51, and when the second elastic member 52 does not abut against the end of the filter element 11, the size of the second elastic member 52 in the axial direction of the accommodating hole 12 is greater than the size of the boss 51.

[0073] Specifically, the second elastic member 52 is also a spring and is sleeved on the outer circumferential side of the boss 51. By arranging the second elastic member 52 to contact the end of the filter element 11, compared with arranging a handle and the handle protruding from the surface of the water purifier shell 10, the buffer part 5 can also press the second elastic member 52 when the filter element 11 is installed into the accommodating hole 12, so that the second elastic member 52 has a spring force to pop the filter element 11 out of the accommodating hole 12, and then when the locking tongue 21 is away from the locking groove 1, the filter element 11 is popped out of the accommodating hole 12 by the second elastic member 52, without the need to arrange a handle, and the axial space of the accommodating hole 12 is reasonably utilized. It can be understood that the size of the second elastic member 52 is greater than the size of the boss 51, so that the second elastic member 52 can contact the end of the filter element 11 before the boss 51, so as to slow down the force when the filter element 11 is installed into the accommodating hole 12, the locking tongue 21 and the locking groove 1 cooperate to position the filter element 11 and compress the second elastic member 52, so that the filter element 11 is popped out of the accommodating hole 12 by the second elastic member 52 when the filter element is disassembled, which is convenient for users to take and place.

[0074] As shown in the drawings, Figure 5 In the present embodiment, a guide surface 211 is arranged on the locking tongue 21 corresponding to the locking groove 1.

[0075] Specifically, the locking tongue 21 and the locking groove 1 have the same shape, both are rectangular structures, the locking tongue 21 is provided with the guide surface 211 on the side close to the filter head in the axial direction of the filter element 11, the guide surface 211 is a chamfer structure in the prior art, from the cross section of the locking tongue 21, the guide surface 211 makes the locking tongue 21 present a right trapezoidal structure, which is a prior art and will not be described in detail here. Of course, in other embodiments, the guide surface 211 can also be arranged on the side away from the filter head in the axial direction of the filter element 11, which can also achieve the improvement of the success rate of the butt joint of the locking tongue 21 and the locking groove 1.

[0076] The embodiment also provides a water purifier, and the water purifier comprises the filter core replacement structure.

[0077] Although the specific embodiments of the present application are described above, those skilled in the art should understand that this is only an example, the protection scope of the present application is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present application, but these changes and modifications all fall within the protection scope of the present application.

Claims

1. A filter replacement structure provided in a water purifier housing having a receiving hole for receiving a filter therein for positioning the filter in a radial direction of the filter, characterized in that, The filter core replacement structure comprises: a lock slot protrudingly arranged on the outer surface of the filter core, extending along the radial direction of the filter core towards the water purifier shell, and located on the first side of the filter core; a locking portion sleeved on the outer circumferential side of the filter core, provided with a lock tongue corresponding to the first side of the filter core and matching the lock slot, and provided with a movement space corresponding to the opposite side of the lock tongue, the locking portion reciprocating along the radial direction of the filter core through the movement space, and the locking portion and the lock slot positioning the filter core along the axial direction of the filter core when the lock tongue matches the lock slot.

2. The filter replacement structure according to claim 1, wherein The lock slot and the locking portion are located on the same horizontal plane.

3. The filter replacement structure according to claim 1, wherein The inner wall of the accommodating hole is provided with a stepped hole having a stepped surface, the filter core replacement structure further comprises a button, the button is arranged in the stepped hole and abuts against the locking portion, the first end of the button is provided with a limiting portion corresponding to the stepped surface, and the limiting portion and the stepped surface are provided with a first elastic member.

4. The filter replacement structure according to claim 3, wherein The limiting portion is flush with the water purifier shell; or the limiting portion extends into the stepped hole and is away from the water purifier shell.

5. The filter replacement structure according to claim 3, wherein The inner wall of the accommodating hole is further provided with an accommodating groove corresponding to the locking portion, the stepped hole and the accommodating groove are communicated, and the locking portion is arranged in the accommodating groove.

6. The filter replacement structure according to Claim 1, wherein The bottom of the accommodating hole is provided with a buffer portion, when the filter core is locked in the accommodating hole by the locking portion and the lock slot, the end portion of the filter core abuts against the buffer portion and the end portion of the filter core away from the buffer portion is flush with the water purifier shell.

7. The filter replacement structure according to Claim 6, wherein The buffer portion comprises a boss extending along the axial direction of the accommodating hole from the bottom of the accommodating hole.

8. The filter replacement structure according to Claim 7, wherein The buffer portion further comprises a second elastic member sleeved on the boss, when the second elastic member does not abut against the end portion of the filter core, the size of the second elastic member along the axial direction of the accommodating hole is greater than the size of the boss.

9. The filter replacement structure according to Claim 1, wherein A guide surface is arranged on the lock tongue corresponding to the lock slot.

10. A water purifier characterized by comprising: The water purifier comprises the filter core replacement structure according to any one of claims 1-9.

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