Filter element, case and water purification equipment

Abstract

The invention discloses filter elements, a case and water purification equipment, and belongs to the technical field of water purification equipment, the water purification equipment comprises the case and a plurality of filter elements mounted in the case, the case is provided with a plurality of filter element seats for mounting the filter elements, and one end, close to the filter element seats, of each filter element is provided with a telescopic locking assembly; a limiting hole and a locking buckle are arranged in the filter element seat, and the locking assembly can extend into the limiting hole to enable the filter element to be clamped with the filter element seat; the locking buckle is movably installed in the limiting hole and comprises a locking protruding block, the locking assembly is made to retract into the filter element through abutting fit of the locking assembly and the locking protruding block, and therefore the filter element and the filter element base are assisted to be separated from each other. Compared with the prior art, ejection and ejection of the filter element can be achieved without using a rotating structure, and the structure is simplified.

Description

Technical Field

[0001] The present invention relates to the technical field of water purification equipment, in particular to a filter element, a chassis and a water purification equipment. Background Art

[0002] Water purification equipment is a common device for deeply filtering and purifying water quality. The purification of water by water purification equipment mainly depends on the filter element arranged inside it. However, as the use time prolongs, impurities in the water will gradually accumulate on the filter element. When the filter element is severely blocked, the filtering effect will be seriously reduced. At this time, the filter element needs to be replaced to maintain the filtering effect on the water. Traditional filter elements are hermetically connected to the water supply equipment by means of threads or snap connections. When replacing, the filter element needs to be rotated, and when rotating, the friction force between the filter element and the sealing fittings needs to be overcome to remove the filter element. This process of replacing the filter element is relatively laborious and the operation is not convenient enough. Based on this, some manufacturers have developed a pressing and ejecting type filter element structure, which is similar to the pressing structure of a ballpoint pen and also realizes reciprocating motion by pressing, so that users can replace the filter element conveniently and quickly. However, such a structure needs to rely on a rotating mechanism to realize the function of reciprocating motion, and the manufacturing requirements are relatively high, so the production cost is relatively high. In addition, the structure of this rotating mechanism is also relatively complex and requires relatively precise cooperation during use. Various problems often occur due to the deviation of the cooperation during use, so the reliability of use is relatively low.

[0003] Therefore, the above technical problems need to be solved. Summary of the Invention

[0004] Aiming at the problems in the prior art, the present invention provides a filter element, a chassis and a water purification equipment, which do not need to rely on a rotating structure to realize the function of pressing and removing the filter element, and the structure is simpler than the prior art.

[0005] The technical solution of the present invention is to provide a filter element, and a retractable locking component is arranged at the bottom end of the filter element. The locking component includes a locking hanging platform and a first reset member. The locking hanging platform can extend out or retract into the filter element. The first reset member is arranged between the locking hanging platform and the filter element, and the first reset member applies a force away from the filter element to the locking hanging platform, so that the locking hanging platform always has a tendency to extend out of the filter element.

[0006] Further, a pushing portion is arranged at one end of the locking hanging platform away from the first reset member, and the pushing portion can drive the locking hanging platform to move towards the inside of the filter element when being stressed.

[0007] Further, the locking hanging platform further includes a positioning portion, and the positioning portion is located on one side of the locking hanging platform close to the bottom end of the filter element and is used for positioning the filter element during the installation process of the filter element.

[0008] The present application also provides a chassis, which includes a plurality of filter element seats arranged inside the chassis. The inside of the filter element seat is provided with a limit hole and a locking buckle adapted to the locking component of the filter element. The locking buckle is movably installed in the limit hole, and the locking component on the filter element is retracted into the filter element by abutting and cooperating with the locking buckle.

[0009] Further, the locking buckle includes a locking protrusion and a movable block. The locking protrusion is arranged on the movable block. A slide rail is also arranged in the limit hole, and the movable block is movably installed on the slide rail.

[0010] Further, a second reset member is arranged inside the filter element seat, and the second reset member is located between the filter element seat and the end face of the filter element facing the filter element seat.

[0011] Further, a locking section is provided at one end of the locking protrusion close to the filter element. A positioning block matching the positioning portion is provided on the locking section. A unlocking section is provided at the end of the locking protrusion far from the filter element. A smooth transition surface is provided between the locking section and the unlocking section.

[0012] Further, the locking section is designed as a plane, and the unlocking section is designed as an inclined plane.

[0013] Further, a water pump and a water circuit board are also arranged inside the chassis. An inlet pipe and an outlet pipe are connected between the water pump and the water circuit board. An inlet and an outlet are provided at one end of each filter element seat facing away from the filter element. All the inlets are communicated with the inlet pipe through the water circuit board, and all the outlets are communicated with the outlet pipe through the water circuit board.

[0014] The present application also provides a water purification device, which includes the above-mentioned filter element and the above-mentioned chassis. The locking component on the filter element can extend into the limit hole on the filter element seat to engage the filter element with the filter element seat inside the chassis; the locking component is retracted into the filter element by the abutting and cooperating of the locking component and the locking protrusion, so as to assist the separation of the filter element from the filter element seat inside the chassis.

[0015] Compared with the prior art, the present application provides a retractable locking component on the filter element, and a filter element seat with a limit hole and a locking buckle is also provided to cooperate with the locking component on the filter element, so that the locking component can engage or disengage from the limit hole, realizing a separable connection between the filter element and the filter element seat on the chassis; this design enables the locking and unlocking processes of the filter element to be completed without the aid of a rotating mechanism, and the structure is simpler. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 This is a schematic cross-sectional view of the overall structure of the present invention.

[0019] Figure 3 This is a schematic diagram of the check valve structure of the present invention.

[0020] Figure 4 This is a schematic diagram of the filter element structure of the present invention.

[0021] Figure 5 This is a schematic diagram of the filter element seat structure of the present invention.

[0022] Figure 6 This is a schematic diagram of the locking buckle structure of the present invention.

[0023] Figure 7 This is a schematic diagram of the engaged state structure of the filter element and the filter element seat of the present invention.

[0024] Figure 8 This is a schematic diagram of the structure during the process of the filter element being removed from the filter element seat of the present invention.

[0025] Figure 9 This is a schematic diagram of the overall structure of the filter element and the filter element seat of the present invention.

[0026] Reference numerals:

[0027] Filter element 1; locking assembly 11; locking hanging platform 111; first reset member 112; pushing portion 113; check valve 12; filter element seat 2; limiting hole 21; locking buckle 22; locking convex block 221; locking section 222; unlocking section 223; positioning block 224; movable block 23; second reset member 24; water inlet 25; water outlet 26; chassis 3; water pump 4; water circuit board 5. Detailed implementation manners

[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0029] Therefore, a feature pointed out in this specification will be used to illustrate one feature of one embodiment of the present invention, rather than implying that each embodiment of the present invention must have the illustrated feature. In addition, it should be noted that this specification describes many features. Although some features may be combined together to show possible system designs, these features may also be used in other combinations not explicitly described. Therefore, unless otherwise stated, the illustrated combinations are not intended to be limiting.

[0030] In the description of the present application, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0031] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation on the present application.

[0032] The principle and structure of the present invention will be described in detail below with reference to the drawings and embodiments.

[0033] Please refer to Figures 1 to 9 , the present application provides the following technical solution: A water purification device includes a filter element 1 and a chassis 3 for accommodating a plurality of filter elements 1. A filter element seat 2 for installing the filter element 1 is provided inside the chassis 3, and the connection between the filter element 1 and the filter element seat 2 is separable. An inlet 25 and an outlet 26 are provided at one end of each filter element seat 2 away from the filter element 1. A water circuit board 5 and a water pump 4 are also provided inside the chassis 3. An inlet pipe and an outlet pipe are provided on the water circuit board 5. The inlet 25 on each filter element seat 2 is communicated with the inlet pipe through the water circuit board 5, and each outlet 26 is communicated with the outlet pipe through the water circuit board 5, and both the inlet pipe and the outlet pipe are connected to the water pump 4. Here, the inlet pipe is used to connect with a water supply device to access the water flow to be purified, and the outlet pipe is used to discharge the water flow that has been purified and filtered by the filter element 1. In addition, check valves 12 for controlling the inflow and outflow of water are provided inside both the filter element 1 and the filter element seat 2. When the filter element 1 is taken out, the check valves 12 on the filter element 1 and the filter element seat 2 are both in the closed state, which prevents water leakage during the process of taking out the filter element 1 and ensures the user experience.

[0034] Among them, a locking assembly 11 is provided at one end of the filter element 1 facing the filter element seat 2. The locking assembly 11 can reciprocally expand and contract along the radial direction of the filter element 1 for locking or unlocking the filter element 1 and the filter element seat 2. A limiting hole 21 is provided inside the filter element seat 2. The limiting hole 21 is a depression provided on the inner walls on both sides of the filter element seat 2. When the filter element 1 needs to be installed on the filter element seat 2, the locking assembly 11 first enters the filter element seat 2 along the inner wall at the top of the filter element seat 2. Under the action of the inner wall of the filter element seat 2, the locking assembly 11 will first retract into the filter element 1. When the locking assembly 11 moves to the position where the limiting hole 21 is located, the locking assembly 11 will extend from the filter element 1 into the limiting hole 21 under the action of the first reset member 112, thereby realizing the engagement of the filter element 1 and the filter element seat 2.

[0035] Specifically, please refer to Figure 2 andFigure 5 , a locking buckle 22 is further provided in the filter element seat 2. The locking buckle 22 is slidably arranged in the limiting hole 21. The locking buckle 22 further includes a movable block 23 and a locking protrusion 221. As Figure 5 shown in the orientation, a slide rail is arranged in the limiting hole 21. The movable block 23 is movably installed on the slide rail, and the movable block 23 can move up and down along the slide rail. Since the locking protrusion 221 is arranged on the movable block 23, the locking protrusion 221 will also move up and down together with the movable block 23. It should be noted that in other embodiments, a chute can also be arranged in the limiting hole 21, and the movable block 23 is installed in the chute, as long as the movable block 23 can move up and down in the limiting hole 21.

[0036] When the filter element 1 needs to be separated from the filter element seat 2, as Figure 7 and Figure 8 shown in the orientation, the filter element 1 is continuously pressed downward. At this time, the locking assembly 11 first contacts the upper end of the locking protrusion 221. As the filter element 1 is continuously pressed, the locking assembly 11 first retracts into the filter element 1 under the action of the locking protrusion 221. When the locking assembly 11 moves below the locking protrusion 221, the locking assembly 11 extends out of the filter element 1 under the action of the first resetting member 112, so that the locking assembly 11 contacts the lower end of the locking protrusion 221. At this time, the filter element 1 is lifted upward, driving the locking protrusion 221 and the movable block 23 to move upward along the slide rail to the top of the limiting hole 21. The locking assembly 11 and the lower end of the locking protrusion 221 are mutually pressed, causing the locking assembly 11 to retract into the filter element 1 and move along the inner wall of the top of the filter element seat 2 until the filter element 1 is removed from the filter element seat 2. Then the locking assembly 11 extends out of the filter element 1 under the action of the first resetting member 112, thereby realizing the separation of the filter element 1 and the filter element seat 2.

[0037] Further, please refer to Figure 4, the locking assembly 11 includes a locking hanging platform 111 and a first reset member 112. The locking hanging platform 111 can extend out or retract into the filter element 1. The first reset member 112 is disposed between the filter element 1 and the locking hanging platform 111 and is used to reset the locking hanging platform 111. Through the setting of the first reset member 112, the locking hanging platform 111 always has a tendency to move away from the filter element 1. When the filter element 1 needs to be installed on the filter element seat 2, since the locking hanging platform 111 always has a tendency to move away from the filter element 1, when the locking hanging platform 111 reaches the position where the limiting hole 21 is located, it will immediately extend into the limiting hole 21, so that the filter element 1 can be smoothly locked with the filter element seat 2. Specifically, the filter element 1 has a cavity for accommodating the locking hanging platform 111. The first reset member 112 is disposed in the cavity. Two ends of the first reset member 112 are respectively in contact with the locking hanging platform 111 and the cavity of the filter element 1. In this embodiment, the first reset member 112 is a spring. The number of the locking hanging platforms 111 is two, and the two locking hanging platforms 111 are symmetrically arranged along the central axis of the filter element 1. The limiting holes 21 and the locking latches 22 are also symmetrically arranged on the filter element seat 2 accordingly. Such a setting can make the two ends of the filter element 1 receive uniform force, so that the locking of the locking assembly 11 to the filter element 1 is more stable.

[0038] Further, as Figure 6 shown in the orientation, a locking section 222 is provided at the upper end of the locking lug 221, and a unlocking section 223 is provided at the lower end of the locking lug 221. A smooth transition surface is provided between the locking section 222 and the unlocking section 223. Such a setting facilitates guiding the locking assembly 11 to quickly switch between the extended state and the retracted state, so that the unlocking and locking of the filter element 1 are more smooth, improving the comfort of use. At the same time, such a setting can also reduce the wear between the locking lug 221 and the locking assembly 11 to improve the service life. Specifically, the locking section 222 of the locking lug 221 is designed as a plane, and the unlocking section 223 is designed as an inclined plane.

[0039] The locking hanging platform 111 further includes a pushing portion 113 and a positioning portion. The pushing portion 113 is located at one end of the locking hanging platform 111 away from the first reset member 112, and the positioning portion is located at the lower end of the locking hanging platform 111. A positioning block 224 that cooperates with the positioning portion is provided on the locking section 222 at the upper end of the locking bump 221. When the filter element 1 is installed on the filter element seat 2, the positioning portion of the locking hanging platform 111 contacts the positioning block 224 on the locking bump 221, and the positioning block 224 and the positioning portion cooperate with each other to assist in locking the filter element 1. Such a setting enables the locking hanging platform 111 and the locking bump 221 to be positioned relative to each other when the filter element 1 is installed on the filter element seat 2, preventing displacement. When it is necessary to separate the filter element 1 from the filter element seat 2, first press down the filter element 1 so that the locking hanging platform 111 moves below the locking bump 221, and then pull out the filter element 1 from the filter element seat 2 upward. The pushing portion 113 of the locking hanging platform 111 will drive the locking bump 221 to move upward. At this time, the pushing portion 113 of the locking hanging platform 111 contacts the unlocking section 223 of the locking bump 221. Since the unlocking section 223 is designed as an inclined surface, the locking hanging platform 111 will gradually retract into the cavity of the filter element 1 under the mutual acting force of the pushing portion 113 and the unlocking section 223, so that the filter element 1 can be smoothly pulled out of the filter element seat 2.

[0040] Further, as Figure 5 shown in the orientation, a second reset member 24 is further provided in the filter element seat 2, and the second reset member 24 is provided on the inner wall of the bottom of the filter element seat 2. This design enables the filter element 1 to have a tendency to always move away from the filter element seat 2 under the acting force of the second reset member 24 when the locking assembly 11 is engaged with the limiting hole 21, thereby enhancing the abutment between the locking assembly 11 and the limiting hole 21 and making the installation of the filter element 1 on the filter element seat 2 more firm. Specifically, one end of the second reset member 24 is fixedly connected to the inner wall of the bottom of the filter element seat 2, and the other end is a free end. In this embodiment, the second reset member 24 is a spring for abutting against the end face of the filter element 1 facing the filter element seat 2, so as to provide an elastic force to the filter element 1.

[0041] In actual use, as Figure 2 、 Figure 7 and Figure 8In the orientation shown, when the filter element 1 is not installed in the filter element seat 2, under the action of the first reset member 112, the locking hanging platform 111 extends out of the filter element 1. When it is necessary to install the filter element 1 into the filter element seat 2, the filter element 1 is pressed towards the filter element seat 2. The locking hanging platform 111 enters the filter element seat 2 along the inner wall of the top of the filter element seat 2. Under the extrusion of the inner wall of the filter element seat 2, the locking hanging platform 111 will first retract into the cavity of the filter element 1. With the continuous pressing of the filter element 1, the locking hanging platform 111 moves along with the filter element 1 towards the filter element seat 2. When the locking hanging platform 111 reaches the position where the limiting hole 21 is located, the locking hanging platform 111 will extend out of the filter element 1 and enter the limiting hole 21 under the action of the first reset member 112. At this time, the second reset member 24 abuts against the end face at the bottom of the filter element 1. The filter element 1 receives an upward acting force from the second reset member 24, making the abutment between the locking hanging platform 111 and the limiting hole 21 tighter, so that the filter element 1 is locked in the filter element seat 2, thus completing the installation of the filter element 1 and the chassis 3. When it is necessary to remove the filter element 1 from the chassis 3, continue to press the filter element 1 towards the filter element seat 2. When the locking hanging platform 111 moves to the position where the locking buckle 22 is located along with the filter element 1, the locking hanging platform 111 will retract into the filter element 1 due to the acting force of the locking convex block 221. When the locking hanging platform 111 moves below the locking convex block 221, the locking hanging platform 111 will extend out of the filter element 1 under the action of the first reset member 112 and abut against the unlocking section 223 at the lower end of the locking convex block 221. At this time, the second reset member 24 at the bottom of the filter element seat 2 is compressed. After stopping pressing the filter element 1 towards the filter element seat 2, the filter element 1 will move upward under the resilience of the second reset member 24. At this time, the locking hanging platform 111 will drive the locking convex block 221 to rise together. When the locking convex block 221 rises to the top of the limiting hole 21, the locking hanging platform 111 will gradually retract into the filter element 1 along the inclined surface of the unlocking section 223 at the lower end of the locking convex block 221. Until the filter element 1 is removed from the filter element seat 2, the locking hanging platform 111 will extend out of the filter element 1 under the action of the first reset member 112 again. At this time, the operation of removing the filter element 1 from the chassis 3 is completed.

[0042] In summary, compared with the prior art, in the present application, a retractable locking assembly 11 is provided on the filter element 1, and a filter element seat 2 with a limiting hole 21 and a locking buckle 22 is provided to cooperate with the locking assembly 11 on the filter element 1, so that the locking assembly 11 can engage with or disengage from the limiting hole 21, realizing a separable connection between the filter element 1 and the filter element seat 2 on the chassis 3; this design enables the locking and unlocking processes of the filter element 1 to be completed without the aid of a rotating mechanism, and the structure is simpler.

[0043] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A filter element, characterized in that: A retractable locking assembly (11) is provided at the bottom end of the filter element (1), and the locking assembly (11) comprises a locking hanging platform (111) and a first reset member (112); the locking hanging platform (111) can be extended out of or retracted into the filter element (1); the first reset member (112) is provided between the locking hanging platform (111) and the filter element (1); the first reset member (112) applies a force to the locking hanging platform (111) away from the filter element (1), so that the locking hanging platform (111) always has a tendency to extend out of the filter element (1).

2. A filter element according to claim 1, characterized in that: A pushing portion (113) is provided at one end of the locking platform (111) away from the first reset member (112); when a force is applied to the pushing portion (113), the locking platform (111) can be driven to move toward the inside of the filter element (1).

3. A filter element according to claim 2, characterized in that: The locking hanging platform (111) further comprises a positioning portion, which is located on one side of the locking hanging platform (111) close to the bottom end of the filter element (1) and is used to position the filter element (1) during the installation process of the filter element (1).

4. A chassis, characterized in that: The invention comprises a plurality of filter element seats (2) arranged inside the chassis (3); a limiting hole (21) and a locking buckle (22) adapted to the locking component (11) of the filter element (1) are arranged inside the filter element seat (2); the locking buckle (22) is movably installed in the limiting hole (21); the locking component (11) on the filter element (1) is retracted into the filter element (1) by abutting and matching with the locking buckle (22).

5. A chassis according to claim 4, characterized in that: The locking buckle (22) comprises a locking protrusion (221) and a movable block (23); the locking protrusion (221) is arranged on the movable block (23); a slide rail is also arranged in the limiting hole (21); and the movable block (23) is movably mounted on the slide rail.

6. A chassis according to claim 4, characterized in that: A second reset member (24) is arranged inside the filter element seat (2), and the second reset member (24) is located between the filter element seat (2) and the end surface of the filter element (1) facing the filter element seat (2).

7. A chassis according to claim 5, characterized in that: The locking protrusion (221) is provided with a locking section (222) at one end close to the filter element (1), and a positioning block (224) matching the positioning portion is provided on the locking section (222). The locking protrusion (221) is provided with a releasing section (223) at one end away from the filter element (1), and a smooth transition curved surface is provided between the locking section (222) and the releasing section (223).

8. A water purification device according to claim 7, characterized in that: The locking section (222) is designed as a plane, and the unlocking section (223) is designed as an inclined surface.

9. The chassis according to claim 4, characterized in that: A water pump (4) and a waterway plate (5) are also provided in the case (3); a water inlet pipe and a water outlet pipe are connected between the water pump (4) and the waterway plate (5); each filter element seat (2) is provided with a water inlet (25) and a water outlet (26) at one end facing away from the filter element (1); all the water inlets (25) are connected to the water inlet pipe through the waterway plate (5); and all the water outlets (26) are connected to the water outlet pipe through the waterway plate (5).

10. A water purification device, characterized in that: The water purification device comprises a filter element (1) as claimed in any one of claims 1 to 3 and a chassis (3) as claimed in any one of claims 4 to 9, wherein the locking component (11) on the filter element (1) can extend into the limiting hole (21) on the filter element seat (2) so that the filter element (1) is engaged with the filter element seat (2) in the chassis (3); the locking component (11) is retracted into the filter element (1) through the abutment cooperation between the locking component (11) and the locking protrusion (221), thereby assisting the filter element (1) and the filter element seat (2) in the chassis (3) to be separated from each other.

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