Middle shell of water purification equipment and water purification equipment with same

Abstract

The utility model discloses a middle shell of water purification equipment and the water purification equipment with the same, the middle shell comprises a filter element accommodating part, the filter element accommodating part defines an accommodating cavity for accommodating a filter element, one side of the accommodating cavity in a first direction is opened to form an opening, the filter element accommodating part comprises a main body part and an end ring part, the main body part is in a cylinder shape extending in the first direction, the end ring part is annular, one end of the end ring part is connected with the main body part, the other end of the end ring part defines an opening, the filter element containing part is integrally formed, a clamping groove is defined between the end ring part and the main body part in a matched mode, and the clamping groove penetrates through the filter element containing part in the radial direction of the containing cavity; the clamping groove is configured to be suitable for being clamped with a clamping protrusion on the peripheral face of the filter element so as to limit the filter element to move in the first direction. According to the middle shell disclosed by the utility model, the manufacturing efficiency and the structural strength of the middle shell can be effectively improved, and the filter element can be effectively fixed and is prevented from shaking, so that the stability and the reliability of the water purification equipment are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of water purification equipment technology, and in particular to a middle shell and a water purification device having the same. Background Technology

[0002] As living standards improve, people have increasingly higher requirements for the quality of household water. Currently, various water purifiers on the market are typically installed on the water supply pipe to filter and purify tap water. The purification function of a water purifier is mainly achieved through filter cartridges; to ensure water quality, these cartridges need to be replaced regularly.

[0003] In existing technologies, water purifiers typically use a rotating filter cartridge structure at the tail end to facilitate filter cartridge replacement. The middle shell, which is used to fix the filter cartridge, is limited by assembly space and mold manufacturing technology. The middle shell usually adopts a disassembled and spliced ​​design. However, the manufacturing efficiency of the disassembled and spliced ​​middle shell is low, and it is prone to breakage during the testing and use of the water purifier. This leads to a reduction in the waterproof sealing performance of the water purifier and unstable quality. Utility Model Content

[0004] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a middle shell for a water purification device. This middle shell effectively improves the manufacturing efficiency and structural strength of the middle shell, and effectively fixes the filter element, preventing filter element shaking, thereby effectively improving the stability and reliability of the water purification device.

[0005] This utility model also proposes a water purification device having the aforementioned middle shell.

[0006] According to the first aspect of the present invention, the middle shell of a water purification device includes: a filter element receiving portion, the filter element receiving portion defining a receiving cavity for receiving a filter element, the receiving cavity being open on one side in a first direction, the filter element receiving portion including: a main body portion and an end ring portion, the main body portion being cylindrical extending along the first direction, the end ring portion being annular, one end of the end ring portion being connected to the main body portion and the other end defining the open cavity, wherein the filter element receiving portion is integrally formed, and the end ring portion and the main body portion are fitted together to define a groove, the groove extending radially through the receiving cavity into the filter element receiving portion, the groove being configured to engage with a protrusion on the outer peripheral surface of the filter element to restrict the movement of the filter element along the first direction.

[0007] According to the present invention, a filter element receiving portion is provided in the middle shell, which defines a receiving cavity for receiving the filter element. The receiving cavity is open on one side in a first direction. The filter element receiving portion includes a main body and an end ring. The main body is cylindrical extending in the first direction, and the end ring is annular. One end of the end ring is connected to the main body, and the other end defines the open cavity. The filter element receiving portion is integrally formed, and the end ring and the main body cooperate to define a groove. The groove extends radially through the receiving cavity and is configured to engage with a protrusion on the outer circumferential surface of the filter element to restrict the movement of the filter element in the first direction. This can effectively improve the manufacturing efficiency and structural strength of the middle shell, and can effectively fix the filter element and prevent it from shaking, thereby effectively improving the stability and reliability of the water purification equipment.

[0008] In some embodiments, the filter element receiving portion further includes: a connecting rib, the connecting rib extending along the first direction, and the two ends of the connecting rib being connected to the two side walls and / or the two side edges of the slot in the first direction, respectively.

[0009] In some embodiments, in the first direction, the middle portion of the connecting rib protrudes radially outward along the receiving cavity.

[0010] In some embodiments, the connecting rib includes an inclined section and a connecting section. There are two inclined sections, which are respectively connected to the main body and the end ring. The two inclined sections extend towards each other in a radial direction from the inside to the outside along the receiving cavity. The connecting section extends along the first direction and its two ends are respectively connected to the outer ends of the two inclined sections.

[0011] In some embodiments, the connecting rib extends circumferentially along the end ring portion into a plate shape.

[0012] In some embodiments, the connecting rib is formed with a hollow hole that extends radially through the receiving cavity, and the hollow hole is one or a plurality of holes arranged at intervals.

[0013] In some embodiments, the connecting rib is a rib shape extending along the first direction.

[0014] In some embodiments, the connecting rib is configured to be radially opposite to the latching protrusion engaged in the latching groove in the receiving cavity.

[0015] In some embodiments, there are multiple slots, which are arranged at circumferential intervals along the receiving cavity, and at least one slot is connected by the connecting rib on opposite sides in the first direction.

[0016] In some embodiments, a limiting groove extending along the first direction is formed on the inner wall surface of the receiving cavity. The limiting groove is adapted to engage with a limiting rib on the outer peripheral surface of the filter element to limit the displacement of the filter element in the circumferential direction of the receiving cavity.

[0017] In some embodiments, the number of filter element accommodating portions is multiple, and the multiple filter element accommodating portions are arranged in a second direction, which is perpendicular to the first direction, and the middle shell is integrally injection molded.

[0018] A water purification device according to a second aspect of the present invention includes: a middle shell of a water purification device according to a first aspect of the present invention; a filter element, the filter element being disposed in the receiving cavity and detachably connected to the middle shell, the filter element including a filter element body and an end cap, the end cap being connected to one end of the filter element body in the first direction and rotatable relative to the filter element body along the circumference of the filter element, a locking protrusion being formed on the outer circumferential surface of the end cap, the locking protrusion being adapted to engage or disengage from the locking groove when the end cap rotates relative to the filter element body.

[0019] According to the second aspect of the present invention, by setting the middle shell of the water purification device of the first aspect, the manufacturing efficiency and structural strength of the middle shell can be effectively improved, and the filter element can be effectively fixed to prevent the filter element from shaking, thereby effectively improving the stability and reliability of the water purification device.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a water purification device according to an embodiment of the present utility model from one angle;

[0022] Figure 2 This is a schematic diagram of the shell at one angle according to an embodiment of the present utility model;

[0023] Figure 3 yes Figure 2 A magnified view of point A, indicated by the center circle;

[0024] Figure 4 This is a schematic diagram of the water purification device according to an embodiment of the present utility model from another angle;

[0025] Figure 5 yes Figure 4 A magnified view of point B, indicated by the center circle;

[0026] Figure 6 This is a schematic diagram of the middle shell from another angle according to an embodiment of the present utility model;

[0027] Figure 7 yes Figure 6 A magnified view of point C, indicated by the center circle;

[0028] Figure 8 This is a schematic diagram of the water purification device according to another angle of an embodiment of the present utility model;

[0029] Figure 9 yes Figure 8 A magnified view of point D, indicated by the center circle;

[0030] Figure 10 This is a schematic diagram of a filter element according to an embodiment of the present utility model;

[0031] Figure 11 This is a schematic diagram of a water purification device according to an embodiment of the present utility model, wherein the filter element is installed and fixed in the receiving cavity;

[0032] Figure 12 This is a schematic diagram of a water purification device according to an embodiment of the present utility model, wherein the filter element is rotated 90 degrees counterclockwise;

[0033] Figure 13 This is a schematic diagram of a water purification device according to an embodiment of the present utility model, wherein the filter element is rotated 90 degrees counterclockwise and then pulled out from the receiving cavity.

[0034] Figure label:

[0035] 100. Water purification equipment;

[0036] 10. Middle shell;

[0037] 11. Filter element receiving part; 111. Receiving cavity; 1111. Opening; 112. Main body; 113. End ring; 1131. Engaging part; 114. Slot; 114a. First slot; 114b. Second slot; 1141. First side wall; 1142. Second side wall; 1143. First inclined surface; 115. Connecting rib; 1151. Inclined section; 1152. Connecting section; 1153. Hole;

[0038] 20. Filter element;

[0039] 21. Filter element body; 211. Limiting rib;

[0040] 22. End cap; 221. Snap protrusion; 2211. Second bevel; 222. Handle;

[0041] 30. Back cover;

[0042] 40. Display panel assembly;

[0043] 50. Electrical control box assembly;

[0044] 60. Booster pump;

[0045] 70. Waterway panel assembly;

[0046] 80. Side panel assembly. Detailed Implementation

[0047] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0048] The following is for reference. Figures 1-13 The description includes the middle shell 10 of a water purification device according to a first aspect embodiment of the present invention.

[0049] like Figures 1-3 As shown, the middle shell 10 of the water purification device according to the first aspect embodiment of the present invention includes: a filter element receiving portion 11.

[0050] The filter element receiving portion 11 defines a receiving cavity 111 for receiving the filter element 20, the receiving cavity 111 being in a first direction (e.g.) Figure 1 and Figure 2 The filter element receiving portion 11 is open on one side in the front-back direction to form an opening 1111. The filter element receiving portion 11 includes a main body portion 112 and an end ring portion 113. The main body portion 112 is a cylindrical shape extending in the first direction. The end ring portion 113 is annular. One end of the end ring portion 113 is connected to the main body portion 112 and the other end defines the opening 1111. The filter element receiving portion 11 is integrally formed, and the end ring portion 113 and the main body portion 112 cooperate to define a groove 114. The groove 114 passes through the filter element receiving portion 11 in the radial direction of the receiving cavity 111. The groove 114 is configured to engage with the protrusion 221 on the outer peripheral surface of the filter element 20 to restrict the movement of the filter element 20 in the first direction.

[0051] It should be noted that, in a specific example, such as Figure 1 and Figure 2 As shown, the first direction is the forward and backward direction. In a specific example, such as... Figure 1 and Figure 2 As shown, the opening 1111 of the receiving cavity 111 is formed on the front side of the receiving cavity 111, that is, the front side of the receiving cavity 111 is open, so that the filter element 20 can be installed in or removed from the receiving cavity 111. Further, the main body 112 extends into a cylindrical shape in the front-rear direction, and the end ring 113 extends into a ring shape in the circumferential direction of the receiving cavity 111. The rear end of the end ring 113 is connected to the front end of the main body 112, and the front end of the end ring 113 defines the opening 1111.

[0052] For example Figure 3 As shown, the filter element receiving part 11 is integrally formed, and the slot 114 is formed by the end ring part 113 and the main body part 112. Further, the slot 114 has a first side wall 1141 and a second side wall 1142. The first side wall 1141 is arranged at intervals on the front side of the second side wall 1142. When the filter element 20 is installed and fixed in the receiving cavity 111, the protrusion 221 on the outer peripheral surface of the filter element 20 can be firmly abutted against the first side wall 1141, thereby effectively restricting the movement of the filter element 20 in the front-back direction. In addition, since the protrusion 221 on the outer peripheral surface of the filter element 20 abuts tightly against the first side wall 1141, there is sufficient friction between the protrusion 221 on the outer peripheral surface of the filter element 20 and the first side wall 1141, thereby restricting the protrusion from rotating circumferentially along the receiving cavity 111, thereby effectively restricting the rotation of the filter element 20 circumferentially along the receiving cavity 111.

[0053] In a specific example, such as Figure 3 As shown, the right end of the first sidewall 1141 is connected to a first inclined surface 1143, and the locking protrusion 221 has a second inclined surface 2211 at one end along the outer circumferential surface of the filter element 20. When the filter element 20 is rotated and installed and fixed in the receiving cavity 111, the second inclined surface 2211 can abut against the first inclined surface 1143 and move towards the locking groove 114 along the extending direction of the first inclined surface 1143. That is to say, the second inclined surface 2211 can slide and cooperate with the first inclined surface 1143, thereby guiding the locking protrusion 221 to rotate into the locking groove 114 of the filter element receiving part 11, thus facilitating user operation and improving convenience.

[0054] It should be noted that the main body 112 and end ring 113 of the middle shell 10 in the prior art are usually designed to be disassembled and spliced. The middle shell 10 with the disassembled and spliced ​​design consumes manpower and time during assembly, resulting in low assembly efficiency. In addition, the middle shell 10 with the disassembled and spliced ​​design is prone to breakage in extreme filter element 20 burst and water hammer tests, which causes the filter element 20 to shake, thereby reducing the waterproof sealing of the water purification equipment 100.

[0055] In this embodiment, when the filter element 20 is installed and fixed in the receiving cavity 111, since the filter element receiving part 11 is integrally formed, compared with the design of disassembling and splicing parts, there is no need to assemble the main body 112 and the end ring 113 together, thereby effectively simplifying the production process of the filter element receiving part 11 and thus effectively improving production efficiency. In addition, the integral forming of the filter element receiving part 11 can avoid the splicing point at the connection between the main body 112 and the end ring 113. The splicing point is often a stress concentration area, which is prone to structural damage. In other words, the integral forming of the filter element receiving part 11 can effectively improve the structural integrity and strength of the filter element receiving part 11, thereby preventing structural damage at the connection between the main body 112 and the end ring 113 during testing or use, thus preventing the filter element 20 from shaking, thereby ensuring the waterproof sealing of the water purification equipment 100. In addition, the slot 114 of the filter element receiving part 11 can engage with the protrusion 221 on the outer peripheral surface of the filter element 20, thereby restricting the movement of the filter element 20 in the first direction and effectively fixing the filter element 20 in the first direction.

[0056] According to the middle shell 10 of this utility model embodiment, a filter element receiving portion 11 is provided in the middle shell 10. The filter element receiving portion 11 defines a receiving cavity 111 for receiving the filter element 20. The receiving cavity 111 is open on one side in a first direction to form an open opening 1111. The filter element receiving portion 11 includes: a main body portion 112 and an end ring portion 113. The main body portion 112 is cylindrical extending in the first direction, and the end ring portion 113 is annular. One end of the end ring portion 113 is connected to the main body portion 112, and the other end defines the open opening 1111. The filter element receiving portion 11 is integrally formed, and the end ring portion 113 and the main body portion 112 cooperate to define a slot 114. The slot 114 passes through the filter element receiving portion 11 radially along the receiving cavity 111. The slot 114 is configured to engage with the locking protrusion 221 on the outer peripheral surface of the filter element 20 to restrict the movement of the filter element 20 in the first direction. This can effectively improve the manufacturing efficiency and structural strength of the middle shell 10, and can effectively fix the filter element 20 to prevent the filter element 20 from shaking, thereby effectively improving the stability and reliability of the water purification equipment 100.

[0057] In one embodiment of this utility model, such as Figures 2-5 As shown, the filter element receiving portion 11 further includes a connecting rib 115, which extends along a first direction, and the two ends of the connecting rib 115 are respectively connected to the two side walls and / or the two side edges of the slot 114 in the first direction.

[0058] For example, the two ends of the connecting rib 115 are respectively connected to the two side walls of the slot 114 in the first direction; or the two ends of the connecting rib 115 are respectively connected to the two side edges of the slot 114 in the first direction; or the two ends of the connecting rib 115 are respectively connected to the two side walls of the slot 114 in the first direction and the two ends of the connecting rib 115 are respectively connected to the two side edges of the slot 114 in the first direction.

[0059] In a specific example, such as Figure 3 As shown, the front end of the connecting rib 115 is connected to the first side wall 1141, the rear end of the connecting rib 115 is connected to the second side wall 1142, and the front end of the connecting rib 115 is connected to the front edge of the slot 114, while the rear end of the connecting rib 115 is connected to the rear edge of the slot 114. When the filter element 20 is installed and fixed in the receiving cavity 111, the connecting rib 115 can effectively disperse the force applied to the connection between the main body 112 and the end ring 113, preventing deformation or breakage caused by local stress concentration.

[0060] In this embodiment, by providing a connecting rib 115 in the filter element receiving portion 11, the connecting rib 115 extends along the first direction, and the two ends of the connecting rib 115 are respectively connected to the two side walls and / or the two side edges of the slot 114 in the first direction, the stress at the connection between the main body portion 112 and the end ring portion 113 can be effectively dispersed, stress concentration can be avoided, and thus the structural strength at the connection between the main body portion 112 and the end ring portion 113 can be effectively improved.

[0061] In one embodiment of this utility model, such as Figures 2-5 As shown, in the first direction, the middle portion of the connecting rib 115 protrudes radially outward along the receiving cavity 111. In a specific example, such as Figure 3 and Figure 5 As shown, in the front-back direction, the middle part of the connecting rib 115 protrudes outward along the radial direction of the receiving cavity 111. Furthermore, when the filter element 20 is installed and fixed in the receiving cavity 111, the side of the connecting rib 115 facing the slot 114 is spaced on the upper side of the side of the protrusion 221 facing away from the filter element 20, thereby preventing the protrusion 221 from colliding and interfering with the connecting rib 115 when it rotates.

[0062] In addition, the outward protrusion of the middle part of the connecting rib 115 along the radial direction of the receiving cavity 111 can effectively increase the rigidity of the connecting rib 115, thereby helping to resist bending stress, reduce the deformation of the connecting rib 115, and further reduce the deformation of the filter element receiving part 11. In other words, the connecting rib 115 can ensure that the shape and position of the slot 114 remain unchanged, thereby ensuring the stability of the filter element 20 after installation and reducing the possible shaking of the filter element 20 during use.

[0063] In this embodiment, by making the middle part of the connecting rib 115 protrude outward along the radial direction of the receiving cavity 111 in the first direction, the rigidity of the connecting rib 115 can be effectively increased, thereby effectively reducing the deformation of the connecting rib 115 and the filter element receiving part 11, and thus effectively reducing the shaking of the filter element 20, thereby effectively increasing the stability of the filter element 20.

[0064] In one embodiment of this utility model, such as Figures 2-5 As shown, the connecting rib 115 includes an inclined section 1151 and a connecting section 1152. There are two inclined sections 1151. The two inclined sections 1151 are connected to the main body 112 and the end ring 113 respectively. The two inclined sections 1151 extend towards each other in the radial direction from the inside to the outside along the receiving cavity 111. The connecting section 1152 extends in the first direction and its two ends are connected to the outer ends of the two inclined sections 1151 respectively.

[0065] In a specific example, such as Figure 3 and Figure 5 As shown, in the radial direction of the receiving cavity 111, the inner end of one inclined segment 1151 is connected to the main body 112, and the outer end of the other inclined segment 1151 is connected to the end ring 113. Further, a connecting segment 1152 extends in the front-rear direction, and both ends of the connecting segment 1152 in the front-rear direction are respectively connected to the outer ends of the two inclined segments 1151 in the radial direction of the receiving cavity 111.

[0066] In other words, when viewed circumferentially along the cavity 111, the inclined section 1151 and the connecting section 1152 form a stable trapezoidal structure. This allows the load borne by the connecting rib 115 to be distributed more evenly in the front-back direction, avoiding stress concentration points in the connecting rib 115 in the front-back direction, thereby effectively reducing the risk of the connecting rib 115 breaking or undergoing excessive deformation in the front-back direction.

[0067] In this embodiment, by providing inclined sections 1151 and connecting sections 1152 in the connecting rib 115, there are two inclined sections 1151. The two inclined sections 1151 are respectively connected to the main body 112 and the end ring 113. In the radial direction from the inside to the outside along the receiving cavity 111, the two inclined sections 1151 extend towards each other. The connecting section 1152 extends along the first direction and its two ends are respectively connected to the outer ends of the two inclined sections 1151. This can effectively disperse the load on the connecting rib 115 in the first direction and avoid stress concentration in the connecting rib 115 in the first direction, thereby effectively improving the structural strength and rigidity of the connecting rib 115.

[0068] In one embodiment of this utility model, such as Figures 2-5As shown, the connecting rib 115 extends circumferentially along the end ring portion 113 to form a plate shape. That is, the connecting rib 115 extends circumferentially along the end ring portion 113 to form a continuous and complete plate shape, rather than an independent or segmented structure.

[0069] This allows the load borne by the connecting rib 115 to be more evenly distributed on the connecting rib 115 in the circumferential direction of the end ring portion 113, avoiding stress concentration points on the connecting rib 115 in the circumferential direction of the end ring portion 113, thereby effectively reducing the risk of the connecting rib 115 breaking or undergoing excessive deformation in the circumferential direction of the end ring portion 113. In addition, the connecting rib 115, which extends in a plate shape along the circumferential direction of the end ring portion 113, can also effectively disperse the external force from the filter element receiving portion 11 in the radial direction, thereby effectively enhancing the structural strength and rigidity of the filter element receiving portion 11.

[0070] In this embodiment, by extending the connecting rib 115 into a plate shape along the circumference of the end ring portion 113, the load on the connecting rib 115 in the circumferential direction of the end ring portion 113 can be effectively distributed, avoiding stress concentration in the connecting rib 115 in the circumferential direction of the end ring portion 113, thereby effectively improving the structural strength and rigidity of the connecting rib 115. Furthermore, it can also effectively increase the structural strength and rigidity of the filter element receiving portion 11, thereby further improving the reliability of the filter element receiving portion 11.

[0071] In one embodiment of this utility model, such as Figures 2-5 As shown, a perforated hole 1153 is formed on the connecting rib 115, which is radially through the receiving cavity 111. The perforated hole 1153 can be one or multiple holes arranged at intervals. For example, the number of perforated holes 1153 can be one; or the number of perforated holes 1153 can be multiple holes arranged at intervals, such as two, three, four, five or more holes arranged at intervals.

[0072] In a specific example, such as Figure 3 and Figure 5 As shown, there are three hollow holes 1153. The hollow holes 1153 are arranged at intervals along the circumference of the end ring portion 113. Furthermore, the shape of the hollow holes 1153 is rectangular, which facilitates the processing of the connecting rib 115 and effectively improves the processing efficiency of the connecting rib 115.

[0073] In this embodiment, by forming a hollow hole 1153 on the connecting rib 115 that radially penetrates the connecting rib 115 along the receiving cavity 111, the hollow hole 1153 can be one or multiple holes arranged at intervals. This can effectively save materials while ensuring the overall strength and rigidity of the connecting rib 115, thereby effectively reducing costs and weight.

[0074] In one embodiment of this utility model, such as Figures 2-5 As shown, the connecting rib 115 is a rib shape extending along the first direction. For example... Figure 5 As shown, when the filter element 20 is installed and fixed in the receiving cavity 111, due to the engagement of the slot 114 and the protrusion 221 on the outer peripheral surface of the filter element 20, the connecting rib 115 mainly bears the load from the front and rear directions. By setting the connecting rib 115 to a rib shape that extends in the front and rear directions, the connecting rib 115 can provide reliable longitudinal support in the front and rear directions and distribute the load borne by the connecting rib 115 in the front and rear directions, thereby enhancing the structural strength of the filter element receiving part 11 in the front and rear directions and ensuring the stability of the filter element 20 after installation and fixing.

[0075] In this embodiment, by setting the connecting rib 115 to a rib shape extending along the first direction, it can not only effectively enhance the structural strength of the filter element receiving part 11 in the first direction, thereby effectively improving the durability of the filter element receiving part 11, but also effectively improve the material utilization efficiency of the connecting rib 115 and effectively save installation space.

[0076] In one embodiment of this utility model, such as Figure 4 and Figure 5 As shown, the connecting rib 115 is configured to be radially aligned with the latching protrusion 221 engaged within the latching groove 114 in the receiving cavity 111. In a specific example, as... Figure 5 As shown, when the filter element 20 is installed and fixed in the receiving cavity 111, the locking protrusion 221 engages with the locking groove 114. In the radial direction of the receiving cavity 111, the connecting rib 115 is directly opposite the locking protrusion 221, and the connecting rib 115 is spaced apart on the upper side of the locking protrusion 221.

[0077] In this embodiment, by configuring the connecting rib 115 to be directly opposite the latching protrusion 221 that engages in the latching groove 114 in the radial direction of the receiving cavity 111, the contact area between the two side walls of the latching groove 114 in the first direction and the two side walls of the latching protrusion 221 in the first direction can be effectively increased. This can effectively fix the filter element 20 from the heat, prevent the filter element 20 from shaking, and thus effectively improve the stability of the filter element 20.

[0078] In one embodiment of this utility model, such as Figure 6 and Figure 7 As shown, there are multiple slots 114, which are arranged at intervals along the circumference of the receiving cavity 111. At least one slot 114 is connected to its opposite side edges in the first direction by a connecting rib 115. For example, the number of slots 114 can be two, three, four, five, or more than six, and the multiple slots 114 are arranged at intervals along the circumference of the receiving cavity 111.

[0079] In a specific example, such as Figure 6 and Figure 7 As shown, there are two slots 114, namely the first slot 114a and the second slot 114b, which are arranged opposite each other in the radial direction of the receiving cavity 111. There are also two protrusions 221, with each slot 114 corresponding to a protrusion 221. Furthermore, the width of the slot 114 in the front-back direction is greater than or equal to 10 mm and less than or equal to 10.2 mm.

[0080] For example Figure 6 and Figure 7 As shown, a first slot 114a is formed between the end ring portion 113 and the main body portion 112 and passes through the filter element receiving portion 11 radially along the receiving cavity 111. The opposite side edges of the first slot 114a in the front-rear direction are connected by connecting ribs 115. A second slot 114b is formed on the inner wall surface of the receiving cavity 111 within the end ring portion 113. Further, a locking portion 1131 is provided on the inner wall surface of the receiving cavity 111 within the end ring portion 113, which protrudes from the outside to the inside in the radial direction of the receiving cavity 111. The locking portion 1131 is recessed in the circumferential direction of the receiving cavity 111 to form the second slot 114b. The second slot 114b also has a first sidewall 1141 and a second sidewall 1142. The first sidewall 1141 is arranged at intervals on the front side of the second sidewall 1142.

[0081] When the filter element 20 is installed and fixed in the receiving cavity 111, the locking protrusion 221 on the outer peripheral surface of the filter element 20 can firmly abut against the first side wall 1141, thereby effectively restricting the movement of the filter element 20 in the front-back direction. In addition, since the locking protrusion 221 on the outer peripheral surface of the filter element 20 abuts tightly against the first side wall 1141, there is sufficient friction between the locking protrusion 221 on the outer peripheral surface of the filter element 20 and the first side wall 1141, thereby restricting the protrusion from rotating circumferentially along the receiving cavity 111, and thus effectively restricting the rotation of the filter element 20 circumferentially along the receiving cavity 111.

[0082] In this embodiment, by setting the number of slots 114 to multiple, the multiple slots 114 are arranged at intervals along the circumference of the receiving cavity 111, and at least one slot 114 is connected by connecting ribs 115 on opposite sides in the first direction, so that the filter element receiving part 11 can fix the filter element 20 at multiple positions, thereby effectively strengthening the fixing effect of the filter element receiving part 11 on the filter element 20, and further improving the stability and reliability of the filter element 20.

[0083] In one embodiment of this utility model, such as Figure 8 and Figure 10As shown, a limiting groove extending in a first direction is formed on the inner wall surface of the receiving cavity 111. The limiting groove is adapted to engage with the limiting rib 211 on the outer peripheral surface of the filter element 20 to limit the displacement of the filter element 20 in the circumferential direction of the receiving cavity 111.

[0084] In a specific example, such as Figure 8 and Figure 10 As shown, a limiting groove is formed on the inner wall surface of the receiving cavity 111, recessed from the inside to the outside along the radial direction of the receiving cavity 111. The limiting groove extends in the front-to-back direction. A limiting rib 211 is formed on the outer peripheral surface of the filter element 20, protruding from the inside to the outside along the radial direction of the filter element 20. The limiting rib 211 extends in the front-to-back direction. There is one limiting groove and one limiting rib 211, and the limiting groove and the limiting rib 211 can be matched for limiting.

[0085] When installing the filter element 20, first insert the limiting rib 211 into the limiting groove, which can limit the circumferential displacement of the filter element 20 in the receiving cavity 111. Then, push the filter element 20 backward until the filter element 20 is installed in the front-back direction. This makes it easier for the user to operate and improves the efficiency of the user to install the filter element 20.

[0086] In this embodiment, a limiting groove extending in a first direction is formed on the inner wall surface of the receiving cavity 111. The limiting groove is adapted to engage with the limiting rib 211 on the outer peripheral surface of the filter element 20 to limit the displacement of the filter element 20 in the circumferential direction of the receiving cavity 111. This effectively limits the displacement of the filter element 20 in the circumferential direction of the receiving cavity 111 when the user installs the filter element 20, thereby facilitating the user's operation and effectively improving the installation efficiency.

[0087] In one embodiment of this utility model, such as Figure 8 and Figure 9 As shown, there are multiple filter element receiving portions 11, which are arranged in a second direction perpendicular to the first direction. The middle shell 10 is integrally injection molded. It should be noted that, as... Figure 8 As shown, the second direction is the vertical direction. For example, the number of filter element receiving parts 11 can be two, three, four, five, or more than six.

[0088] In a specific example, such as Figure 8 and Figure 9 As shown, there are two filter element receiving parts 11, and multiple filter element receiving parts 11 are arranged in the vertical direction. Furthermore, an RO filter element 20 is provided in the filter element receiving part 11 located on the upper side, and a PCB filter element 20 is provided in the filter element receiving part 11 located on the lower side. The middle shell 10 is made of ABS plastic and is integrally injection molded.

[0089] In this embodiment, by setting the number of filter element receiving parts 11 to multiple, and arranging the multiple filter element receiving parts 11 in a second direction perpendicular to the first direction, not only can the filtration effect be effectively improved, but the compactness of the middle shell 10 can also be improved. Designing the middle shell 10 as an integral injection molding can effectively increase the integrity and structural strength of the middle shell 10, thereby effectively increasing the durability and service life of the middle shell 10.

[0090] like Figure 1 , Figure 11 , Figure 12 and Figure 13 As shown, the water purification device 100 according to the second aspect embodiment of the present invention includes: a middle shell 10 and a filter element 20 according to the first aspect embodiment of the present invention.

[0091] The filter element 20 is disposed in the receiving cavity 111 and is detachably connected to the middle shell 10. The filter element 20 includes a filter element 20 body and an end cap 22. The end cap 22 is connected to one end of the filter element 20 body in a first direction and is rotatable relative to the filter element 20 body in the circumferential direction of the filter element 20. A locking protrusion 221 is formed on the outer circumferential surface of the end cap 22. When the end cap 22 rotates relative to the filter element 20 body, the locking protrusion 221 is adapted to engage or disengage from the locking groove 114.

[0092] In a specific example, such as Figure 1 As shown, the end cap 22 is also provided with a handle 222. The handle 222 extends along the radial direction of the end cap 22. Two locking protrusions 221 are formed on the outer peripheral surface of the end cap 22. The two locking protrusions 221 are arranged opposite each other in the radial direction of the end cap 22. The width dimension of the locking protrusions 221 in the front-back direction is greater than or equal to 8.7 mm and less than or equal to 8.9 mm.

[0093] In a specific example, such as Figure 1 As shown, the water purification equipment 100 also includes a rear shell 30, a display panel assembly 40, an electrical control box assembly 50, a booster pump 60, a water circuit board assembly 70, and a side plate assembly 80. The rear shell 30 is located on the rear side of the middle shell 10. The display panel assembly 40 is located on the lower side of the end ring 113 of the lower filter element receiving part 11. The electrical control box assembly 50 is located on the rear side of the display panel assembly 40. The booster pump 60 is located on the rear side of the electrical control box assembly 50. The water circuit board assembly 70 is located on the front side of the rear shell 30. The side plate assembly 80 is installed on the upper side and the left and right sides of the middle shell 10.

[0094] It should be noted that the rear shell 30 and the side panel assembly 80 provide external protection for the entire water purification device 100, preventing dust, moisture and other external factors from damaging the internal components. At the same time, the rear shell 30 and the side panel assembly 80, together with the middle shell 10, form the main frame of the water purification device 100, enhancing the stability and robustness of the overall structure. The display panel assembly 40 is the main interactive interface between the user and the water purification device 100, used to display the device status (such as water quality, filter cartridge 20 lifespan, etc.) and operation prompts.

[0095] It should be noted that the electrical control box assembly 50 is responsible for managing the power supply of the water purification equipment 100, ensuring that all electrical components receive stable voltage and current. Furthermore, the electrical control box assembly 50 is equipped with overload protection, short circuit protection, and other functions to ensure that the water purification equipment 100 will not be damaged under abnormal conditions and to ensure user safety. The booster pump 60 is used to increase the water pressure entering the water purification equipment 100, ensuring sufficient pressure to pass through each filter element 20, thereby achieving a high-efficiency filtration effect. The water circuit board assembly 70 is the core component of the internal water flow path of the water purification equipment 100. The water circuit board assembly 70 can accurately guide the untreated raw water through each filter element 20 in sequence and finally discharge the purified water.

[0096] According to the second aspect of the present invention, the water purification device 100, by providing the middle shell 10 of the first aspect, can effectively improve the manufacturing efficiency and structural strength of the middle shell 10, and can effectively fix the filter element 20, avoid the filter element 20 from shaking, thereby effectively improving the stability and reliability of the water purification device 100.

[0097] According to some embodiments of the present invention, the water purification equipment 100 is a water purifier, a water purifier, or a water-using device with heating or cooling functions.

[0098] A water purifier can be a household water purifier or a commercial water purifier. It has filtration and heating functions and can provide users with filtered room temperature water or warm water made from a mixture of hot and room temperature water.

[0099] The water purifier is a multi-functional water purification device that integrates water purification and drinking functions. It can not only purify water, but also heat or cool room temperature water, providing a variety of options such as cold water, room temperature water, or warm water. It is suitable for use in homes, offices, and business venues.

[0100] Water-using equipment with heating or cooling functions can be water heaters. As users have increasingly higher demands for the water used in bathing, purification modules are being added to water heaters to purify tap water.

[0101] The following will refer to Figures 1-13 This invention describes a water purification device 100 according to a specific embodiment of the present invention. The water purification device 100 in this embodiment is a water purifier.

[0102] The water purification equipment 100 includes a middle shell 10, a filter element 20, a rear shell 30, a display panel assembly 40, an electrical control box assembly 50, a booster pump 60, a water circuit board assembly 70, and a side plate assembly 80.

[0103] The middle shell 10 includes a filter element receiving portion 11, which defines a receiving cavity 111 for receiving the filter element 20. The filter element receiving portion 11 includes a main body portion 112, an end ring portion 113, and a connecting rib 115. The end ring portion 113 and the main body portion 112 together form a slot 114. The front end of the end ring portion 113 defines an opening 1111, and an engaging portion 1131 is provided in the end ring portion 113. There are two slots 114, namely a first slot 114a and a second slot 114b. Each slot 114 is provided with a first sidewall 1141, a second sidewall 1142, and a first inclined surface 1143. The connecting rib 115 includes an inclined section 1151 and a connecting section 1152, and a hollow hole 1153 is formed on the connecting rib 115. The filter element 20 includes a filter element 20 body and an end cap 22. The filter element 20 body is provided with a limiting rib 211. The end cap 22 includes a locking protrusion 221 and a handle 222. The locking protrusion 221 is provided with a second inclined surface 2211.

[0104] The filter element receiving portion 11 is integrally formed, and there are two filter element receiving portions 11 arranged vertically. The main body portion 112 extends into a cylindrical shape in the front-back direction, and the end ring portion 113 extends into a ring shape in the circumference of the receiving cavity 111. The end ring portion 113 is disposed on the front side of the main body portion 112, and the rear end of the end ring portion 113 is connected to the front end of the main body portion 112, and the front end of the end ring portion 113 defines an opening 1111. Further, there are two slots 114 in one filter element receiving portion 11, and the two slots 114 are arranged opposite each other in the circumference of the end ring portion 113. The slots 114 have a first sidewall 1141 and a second sidewall 1142, and the first sidewall 1141 is arranged at intervals on the front side of the second sidewall 1142.

[0105] A first slot 114a is formed between the end ring portion 113 and the main body portion 112 and extends radially through the filter element receiving portion 11. A second slot 114b is formed on the inner wall surface of the receiving cavity 111 within the end ring portion 113. The width dimension of the slot 114 in the front-rear direction is greater than or equal to 10 mm and less than or equal to 10.2 mm. Further, an engaging portion 1131 is provided on the inner wall surface of the receiving cavity 111 within the end ring portion 113, protruding from the outside to the inside radially of the receiving cavity 111. The engaging portion 1131 is recessed circumferentially along the receiving cavity 111 to form the second slot 114b. The second slot 114b also has a first sidewall 1141 and a second sidewall 1142. The first sidewall 1141 is spaced apart and arranged on the front side of the second sidewall 1142. The right end of the first sidewall 1141 is connected to the first inclined surface 1143, and the protrusion 221 is provided with a second inclined surface 2211 at one end of the outer peripheral surface of the filter element 20.

[0106] The filter cartridge housing 11 has one connecting rib 115. One of the two inclined segments 1151 of the connecting rib 115 is connected to the main body 112, and the other is connected to the end ring 113. The two inclined segments 1151 extend towards each other in the radial direction from the inside to the outside along the housing cavity 111. The connecting segment 1152 of the connecting rib 115 connects the two inclined segments 1151 and extends in the front-back direction. The middle part of the connecting rib 115 protrudes outward in the radial direction along the housing cavity 111. Furthermore, the connecting rib 115 of the upper filter element receiving portion 11 extends in a plate shape along the circumference of the end ring portion 113, and a hollow hole 1153 is formed on the connecting rib 115 that radially passes through the connecting rib 115 along the receiving cavity 111. There are three hollow holes 1153, and the three hollow holes 1153 are arranged at intervals along the circumference of the receiving cavity 111. The connecting rib 115 of the lower filter element receiving portion 11 extends in a rib shape in the front-back direction.

[0107] A limiting groove is formed on the inner wall of the receiving cavity 111, recessed from the inside to the outside along the radial direction of the receiving cavity 111. The limiting groove extends in the front-rear direction. A limiting rib 211 is formed on the outer peripheral surface of the filter element 20 body, protruding from the inside to the outside along the radial direction of the filter element 20. The limiting rib 211 extends in the front-rear direction. There is one limiting groove and one limiting rib 211. A handle 222 is provided on the front side of the end cover 22, extending in the radial direction of the end cover 22. Two locking protrusions 221 are formed on the outer peripheral surface of the end cover 22, arranged opposite each other in the radial direction of the end cover 22. The locking protrusions 221 correspond one-to-one with the locking grooves 114. The width of the locking protrusions 221 in the front-rear direction is greater than or equal to 8.7 mm and less than or equal to 8.9 mm. Furthermore, the end cover 22 is rotatably connected to the front end of the filter element 20 body.

[0108] The rear shell 30 of the water purification equipment 100 is located on the rear side of the middle shell 10, the display panel assembly 40 is located on the lower side of the end ring 113 of the lower filter element receiving part 11, the electrical control box assembly 50 is located on the rear side of the display panel assembly 40, the booster pump 60 is located on the rear side of the electrical control box assembly 50, the water circuit board assembly 70 is located on the front side of the rear shell 30, and the side plate assembly 80 is installed on the upper side and the left and right sides of the middle shell 10.

[0109] When the user installs and fixes the filter element 20 in the receiving cavity 111, first align the limiting rib 211 with the limiting groove, then push the filter element 20 into the receiving cavity 111 in the front-back direction. After that, turn the handle 222, and the second inclined surface 2211 can abut against the first inclined surface 1143 and move towards the slot 114 along the extension direction of the first inclined surface 1143. Continue to turn the handle 222 until the locking protrusion 221 engages with the slot 114. When the latching protrusion 221 engages with the latching groove 114, the connecting rib 115 and the latching protrusion 221 engaged in the latching groove 114 are directly opposite each other in the radial direction of the receiving cavity 111. At this time, the latching protrusion 221 can firmly abut against the first side wall 1141, thereby effectively restricting the filter element 20 from moving in the front-back direction. In addition, since the latching protrusion 221 abuts tightly against the first side wall 1141, there is sufficient friction between the latching protrusion 221 and the first side wall 1141, thereby restricting the protrusion from rotating circumferentially along the receiving cavity 111, and thus effectively restricting the filter element 20 from rotating circumferentially along the receiving cavity 111.

[0110] This water purification device 100 can effectively improve the manufacturing efficiency and structural strength of the middle shell 10, and can effectively fix the filter element 20, preventing the filter element 20 from shaking, thereby effectively improving the stability and reliability of the water purification device 100.

[0111] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0112] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0113] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0114] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0115] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A middle shell of a water purification device, characterized in that, include: A filter element receiving portion defines a receiving cavity for receiving a filter element, the receiving cavity being open on one side in a first direction. The filter element receiving portion includes a main body portion and an end ring portion. The main body portion is cylindrical extending along the first direction, and the end ring portion is annular. One end of the end ring portion is connected to the main body portion, and the other end defines the open cavity. The filter element receiving portion is integrally formed, and the end ring portion and the main body portion cooperate to define a slot. The slot extends radially through the filter element receiving portion along the receiving cavity. The slot is configured to engage with a protrusion on the outer peripheral surface of the filter element to restrict the movement of the filter element along the first direction.

2. The middle shell of the water purification device according to claim 1, characterized in that, The filter element receiving portion further includes: a connecting rib, the connecting rib extending along the first direction, and the two ends of the connecting rib being connected to the two side walls and / or the two side edges of the slot in the first direction, respectively.

3. The middle shell of the water purification device according to claim 2, characterized in that, In the first direction, the middle portion of the connecting rib protrudes outward along the radial direction of the receiving cavity.

4. The middle shell of the water purification device according to claim 3, characterized in that, The connecting rib includes an inclined section and a connecting section. There are two inclined sections, which are respectively connected to the main body and the end ring. The two inclined sections extend towards each other in a radial direction from the inside to the outside along the receiving cavity. The connecting section extends along the first direction and its two ends are respectively connected to the outer ends of the two inclined sections.

5. The middle shell of the water purification device according to claim 3, characterized in that, The connecting rib extends circumferentially along the end ring to form a plate shape.

6. The middle shell of the water purification device according to claim 5, characterized in that, The connecting rib has a hollow hole that extends radially through the receiving cavity, and the hollow hole may be one or multiple holes spaced apart.

7. The middle shell of the water purification device according to claim 3, characterized in that, The connecting rib is a rib shape that extends along the first direction.

8. The middle shell of the water purification device according to claim 2, characterized in that, The connecting rib is configured to be radially opposite to the latching protrusion that engages in the latching groove within the receiving cavity.

9. The middle shell of the water purification device according to claim 2, characterized in that, The number of slots is multiple, and the multiple slots are arranged at intervals along the circumference of the receiving cavity. At least one slot is connected to the opposite side edges in the first direction by the connecting rib.

10. The middle shell of the water purification device according to claim 1, characterized in that, A limiting groove extending along the first direction is formed on the inner wall surface of the receiving cavity. The limiting groove is adapted to engage with the limiting rib on the outer peripheral surface of the filter element to limit the displacement of the filter element in the circumferential direction of the receiving cavity.

11. The middle shell of the water purification device according to any one of claims 1-10, characterized in that, The number of filter element accommodating parts is multiple, and the multiple filter element accommodating parts are arranged in a second direction, which is perpendicular to the first direction. The middle shell is integrally injection molded.

12. A water purification device, characterized in that, include: The middle shell of the water purification device according to any one of claims 1-11; A filter element is disposed within the receiving cavity and detachably connected to the middle shell. The filter element includes a filter element body and an end cap. The end cap is connected to one end of the filter element body in the first direction and is rotatable relative to the filter element body along the circumference of the filter element. A locking protrusion is formed on the outer circumferential surface of the end cap. When the end cap rotates relative to the filter element body, the locking protrusion is adapted to engage or disengage from the locking groove.

Images