A sealing joint and a waterway plate structure for a water purifier

Abstract

The present invention provides a sealing joint and a waterway plate structure for a water purifier, wherein the sealing joint comprises: a male joint; a female joint, which is plugged into and matched with the male joint; a sealing member, which is sleeved on the outer periphery of the male joint; wherein the sealing joint further comprises a locking mechanism, and when the male joint is plugged into and matched with the female joint, the sealing member can seal the gap between the male joint and the female joint, and the locking mechanism can lock the male joint on the female joint. Based on the technical solution of the present invention, a locking mechanism is provided so that the sealing joint has a self-locking function, thereby preventing the male joint from escaping from the female joint, thereby improving the stability and reliability of the sealing joint connection, and preventing water from leaking from the connection between the waterway plate and the filter element. Moreover, the sealing joint in the present application has a compact structure and simplified component composition, thereby avoiding the problem of a high risk of leakage at the connection between the waterway plate and the filter element due to the complex structure of the sealing joint. This further improves the stability and reliability of the water purifier.

Description

Technical Field

[0001] The present invention relates to the technical field of the sealed connection of the water circuit board of a water purifier, and particularly to a sealed joint and a water circuit board structure. Background Art

[0002] At present, the water circuit boards on the market generally connect the water circuit board and the filter element together through a sealed joint to connect the water circuit on the water circuit board with the filter element.

[0003] However, the structural design of the sealed joint in the related art is relatively complex, and it has more components, thus increasing the risk of leakage at the connection between the water circuit board and the filter element. Summary of the Invention

[0004] In view of the above problems in the prior art, the present application provides a sealed joint and a water circuit board structure for a water purifier, which solves the problem of a relatively high risk of leakage at the connection between the water circuit board and the filter element.

[0005] The sealed joint of the present invention includes: a male joint; a female joint that is inserted and cooperated with the male joint; a sealing member that is sleeved on the outer periphery of the male joint; wherein, the sealed joint further includes a locking mechanism, and when the male joint is inserted and cooperated with the female joint, the locking mechanism can lock the male joint on the female joint.

[0006] In one embodiment, the locking mechanism includes: a clamping seat provided with a clamping groove, and the clamping seat is sleeved on the outer periphery of the female joint; a clamping block provided on the outer peripheral surface of the male joint; wherein, when the male joint is inserted and cooperated with the female joint, the clamping block is clamped and locked in the clamping groove. Through this embodiment, the male joint is locked on the female joint by a clamping cooperation method. This connection method is convenient for disassembly and assembly, and has good connection reliability, thus improving the convenience of installing the water purifier and at the same time improving the working stability of the water purifier.

[0007] In one embodiment, the clamping seat includes: a body provided with a through hole; a convex block arranged along the circumferential direction of the body, and at least part of the convex block is arranged in the through hole; the clamping groove is arranged through the body and the convex block along the radial direction of the body. Through this embodiment, the male joint is locked on the female joint by a clamping cooperation method. This connection method is convenient for disassembly and assembly, and has good connection reliability, thus improving the convenience of installing the water purifier and at the same time improving the working stability of the water purifier.

[0008] In one embodiment, the clamping groove includes: a first groove wall surface; a second groove wall surface that is oppositely arranged to the first groove wall surface; a groove bottom surface that is connected to the first groove wall surface and the second groove wall surface and is located between the first groove wall surface and the second groove wall surface, and the clamping block is clamped and locked on the groove bottom surface.

[0009] In one embodiment, the bottom surface of the groove includes: a guiding surface, one side of which is connected to the first groove wall surface; an undercut surface, one side of which is connected to the other side of the guiding surface, and the other side of the undercut surface is connected to the second groove wall surface; wherein, the guiding surface cooperates with the clamping block to guide it into the clamping groove, and the undercut surface cooperates with the clamping block to lock it in the clamping groove. Through this embodiment, the guiding surface cooperates with the clamping block to guide it into the clamping groove, and the undercut surface cooperates with the clamping block to lock it in the clamping groove. Thus, it is ensured that the male connector is locked on the female connector, and further ensured that the sealing joint seals and connects the water circuit board and the filter element together.

[0010] In one embodiment, the guiding surface and the reference surface have an included angle γ, and the included angle γ is formed below the reference surface, and the value range of the included angle γ is: 0 < γ ≤ 30°.

[0011] In one embodiment, the undercut surface and the reference surface have an included angle β, and the included angle β is formed above the reference surface, and the value range of the included angle β is: 2° ≤ β ≤ 4°.

[0012] In one embodiment, the included angle β is equal to 3°.

[0013] In one embodiment, the clamping block is provided with a first contact surface and a second contact surface connected to the first contact surface. The first contact surface is adapted to the guiding surface, and the second contact surface is adapted to the undercut surface. Through this embodiment, by the cooperation of the first contact surface and the guiding surface, the clamping block can smoothly slide into the clamping groove. By the cooperation of the second contact surface and the undercut surface, the clamping block can be clamped in the clamping groove. In this way, while ensuring the insertion and cooperation of the male connector and the female connector, the male connector can be locked on the female connector, and further ensured that the sealing joint seals and connects the water circuit board and the filter element together.

[0014] The present invention provides a water circuit board structure for a water purifier, including: a water circuit board; a filter element; the above-mentioned sealing joint, a part of which is arranged on the water circuit board and the other part is arranged on the filter element, and the sealing joint is used to seal and connect the water circuit board and the filter element together.

[0015] The above technical features can be combined in various suitable ways or replaced by equivalent technical features as long as the purpose of the present invention can be achieved.

[0016] A sealing joint and a water circuit board structure for a water purifier provided by the present invention, compared with the prior art, at least have the following beneficial effects:

[0017] (1) The locking mechanism is set so that the sealing joint has a self-locking function, which prevents the male joint from disengaging from the female joint, thereby improving the connection stability and reliability of the sealing joint. Furthermore, it ensures that the water circuit board and the filter element can be stably connected, preventing water leakage at the connection between the water circuit board and the filter element, and ensuring the normal operation of the water purifier. Moreover, the sealing joint in this application has a compact structure. Compared with the sealing joints in related technologies, the component composition is simplified, thus avoiding the problem of a relatively high risk of water leakage at the connection between the water circuit board and the filter element due to the complex composition structure of the sealing joint. This further improves the working stability and reliability of the water purifier.

[0018] (2) The structure of the water circuit board in this application simplifies the component composition compared with the water circuit board structure in related technologies, and its structure is more compact and reasonable, thereby improving the stability and reliability of the water purifier during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be described in more detail below based on embodiments with reference to the drawings. Among them:

[0020] Figure 1 shows an exploded view of the sealing joint of the present invention (showing the filter element);

[0021] Figure 2 shows Figure 1 a three-dimensional exploded view of the sealing joint in

[0022] Figure 3 shows Figure 1 a schematic structural view of the sealing joint in

[0023] Figure 4 shows Figure 1 a schematic structural view of the sealing joint in

[0024] Figure 5 shows Figure 1 a schematic structural view of the sealing joint in

[0025] Figure 6 shows Figure 1 a three-dimensional structural view of the card seat in

[0026] Figure 7 shows Figure 1 a three-dimensional structural view of the male joint in

[0027] Figure 8 shows Figure 1 a force analysis diagram of the guiding surface in

[0028] In the drawings, like parts are designated by like reference numerals. The drawings are not drawn to scale.

[0029] Reference numerals:

[0030] 10, male connector; 20, female connector; 30, seal; 40, locking mechanism; 41, clamping seat; 411, clamping groove; 4111, groove bottom surface; 4112, first groove wall surface; 4113, second groove wall surface; 4114, guiding surface; 4115, reverse buckle surface; 4116, finishing surface; 4117, connecting surface; 412, body; 413, convex block; 42, clamping block; 421, first contact surface; 422, second contact surface; 100, filter element. Detailed implementation manners

[0031] The present invention will be further described below with reference to the drawings.

[0032] It should be noted that the sealed connector in the present application is mainly used for the sealed connection between the water circuit board and the filter element of the water purifier to prevent water leakage at the connection between the water circuit board and the filter element.

[0033] Certainly, the sealed connector in the present application is not limited to the field of water purifiers and can also be used in other fields.

[0034] It should be noted that the reference plane in the present application refers to a plane that is perpendicular to the central axis of the body 412 of the clamping seat 41 and passes through the intersection line of the reverse buckle surface 4115 and the finishing surface 4116.

[0035] As Figures 1 to 5 shown, the present invention provides a sealed connector, which includes a male connector 10, a female connector 20 and a seal 30. Among them, the female connector 20 is in plug-in fit with the male connector 10; the seal 30 is sleeved on the outer periphery of the male connector 10; the sealed connector further includes a locking mechanism 40. When the male connector 10 and the female connector 20 are in plug-in fit, the seal 30 can seal the gap between the male connector 10 and the female connector 20, and the locking mechanism 40 can lock the male connector 10 on the female connector 20.

[0036] In the above setting, the locking mechanism 40 is provided to make the sealed connector have a self-locking function, which prevents the male connector 10 from disengaging from the female connector 20, thereby improving the connection stability and reliability of the sealed connector, and further ensuring that the water circuit board and the filter element 100 can be stably connected, preventing water from leaking at the connection between the water circuit board and the filter element 100, so as to ensure the normal operation of the water purifier. Moreover, the sealed connector in the present application has a compact structure. Compared with the sealed connectors in the related art, the component composition is simplified, thus avoiding the problem of a relatively high risk of water leakage at the connection between the water circuit board and the filter element 100 caused by the complex composition structure of the sealed connector. Furthermore, the stability and reliability of the operation of the water purifier are improved.

[0037] Specifically, as Figures 1 to 7 shown, in one embodiment, the locking mechanism 40 includes a clamping seat 41 and a clamping block 42. Among them, the clamping seat 41 is provided with a clamping groove 411, and the clamping seat 41 is sleeved on the outer periphery of the female connector 20; the clamping block 42 is arranged on the outer peripheral surface of the male connector 10; when the male connector 10 is inserted and matched with the female connector 20, the clamping block 42 is clamped and locked in the clamping groove 411.

[0038] In the above setting, the male connector 10 is locked on the female connector 20 by means of clamping fit. This connection method is convenient for disassembly and assembly, and has good connection reliability, thereby improving the convenience of installing the water purifier and at the same time improving the working stability of the water purifier.

[0039] Of course, in an alternative embodiment not shown in the drawings of the present application, the locking method of the male and female connectors can adopt threaded connection.

[0040] Specifically, as Figure 6 shown, in one embodiment, the clamping seat 41 includes a body 412 and a convex block 413. Among them, the body 412 is provided with a through hole, the convex block 413 is arranged along the circumferential direction of the body 412, and a part of it is embedded in the through hole. The clamping groove 411 is arranged through the body 412 and the convex block 413 along the radial direction of the body 412.

[0041] Specifically, as Figure 6 shown, in one embodiment, the clamping groove 411 includes a first groove wall surface 4112, a second groove wall surface 4113 and a groove bottom surface 4111. Among them, the second groove wall surface 4113 is arranged opposite to the first groove wall surface 4112, and the groove bottom surface 4111 is connected to the first groove wall surface 4112 and the second groove wall surface 4113 and is located between the first groove wall surface 4112 and the second groove wall surface 4113. The clamping block 42 is clamped and locked on the groove bottom surface 4111.

[0042] In the above setting, the groove bottom surface 4111 can be in contact with the lower end surface of the clamping block 42, and a frictional force is generated between the groove bottom surface 4111 and the lower end surface of the clamping block 42. In this way, the clamping block 42 can be prevented from disengaging from the clamping groove 411 through the frictional force, so as to ensure that the male connector 10 is locked on the female connector 20, and further ensure that the sealing joint seals and connects the water circuit board and the filter element 100 together.

[0043] Specifically, as Figure 6 shown, in one embodiment, the body 412 is a cylinder.

[0044] Specifically, as Figure 6 shown, in one embodiment, the clamping groove 411 is a through groove and penetrates through the body 412 and the convex block 413 along the radial direction of the body 412.

[0045] Specifically, as Figure 6As shown, in one embodiment, the snap groove 411 is a U-shaped open groove, and its opening faces the end of the body 412 away from the snap block 42.

[0046] Specifically, as Figure 6 shown, in one embodiment, the bottom surface 4111 of the groove includes a guiding surface 4114 and a reverse buckling surface 4115. Among them, one side of the guiding surface 4114 is connected to the first groove wall surface 4112; one side of the reverse buckling surface 4115 is connected to the other side of the guiding surface 4114, and the other side of the reverse buckling surface 4115 is connected to the second groove wall surface 4113.

[0047] In the above setting, the guiding surface 4114 cooperates with the snap block 42 to guide it into the snap groove 411, and the reverse buckling surface 4115 cooperates with the snap block 42 to lock it in the snap groove 411. Thus, it is ensured that the male connector 10 is locked on the female connector 20, and further ensured that the sealing joint seals and connects the water circuit board and the filter element 100 together.

[0048] Specifically, as Figure 6 shown, in one embodiment, the snap groove 411 further includes a finishing surface 4116 and a connecting surface 4117. The finishing surface 4116 is used to connect the second groove wall surface 4113 and the reverse buckling surface 4115. The connecting surface 4117 is used to connect the first groove wall surface 4112 and the guiding surface 4114.

[0049] Specifically, as Figure 6 shown, in one embodiment, the connecting surface 4117 is a flat surface, and the finishing surface 4116 is an arc surface.

[0050] Specifically, as Figure 4 shown, in one embodiment, the guiding surface 4114 has an included angle γ with the reference surface. The included angle γ is formed below the reference surface, and the value range of the included angle γ is: 0 < γ ≤ 30°.

[0051] Specifically, as Figure 4 shown, in one embodiment, the reverse buckling surface 4115 has an included angle β with the reference surface. The included angle β is formed above the reference surface, and the value range of the included angle β is: 2° ≤ β ≤ 4°.

[0052] Specifically, as Figure 4 shown, in one embodiment, the included angle β is equal to 3°.

[0053] Specifically, as Figures 1 to 5 shown, in one embodiment, the snap block 42 is provided with a first contact surface 421 and a second contact surface 422 connected to the first contact surface 421. The first contact surface 421 is adapted to the guiding surface 4114, and the second contact surface 422 is adapted to the reverse buckling surface 4115.

[0054] In the above setting, the first contact surface 421 cooperates with the guiding surface 4114, enabling the clamping block 42 to smoothly slide into the clamping groove 411. The second contact surface 422 cooperates with the reverse buckle surface 4115, enabling the clamping block 42 to be tightly clamped in the clamping groove 411. This ensures that while the male connector 10 is inserted and mated with the female connector 20, the male connector 10 can be locked onto the female connector 20, thereby ensuring that the sealing joint seals and connects the water circuit board and the filter element 100 together.

[0055] The present invention also provides a water circuit board structure for a water purifier, which includes a water circuit board and a filter element 100. Among them, a part of the sealing joint is arranged on the water circuit board, and the other part is arranged on the filter element 100. The sealing joint is used to seal and connect the water circuit board and the filter element 100 together.

[0056] The water circuit board structure of the present application simplifies the composition of components compared to the water circuit board structure in the related art, and its structure is more compact and reasonable, thereby improving the stability and reliability of the water purifier during use.

[0057] Specifically, in one embodiment, the water circuit board is provided with a female connector 20, the filter element 100 is integrally provided with a male connector 10, a plurality of annular sealing grooves are provided on the outer periphery of the male connector 10, the sealing member 30 is an O-ring, which is sleeved in the annular sealing groove, and the clamping seat 41 is sleeved on the outer periphery of the female connector 20 and is connected to the water circuit board.

[0058] The following describes the connection and locking process of the sealing joint in the present application:

[0059] First, insert the male connector 10 into the female connector 20, and then rotate the filter element 100. The clamping block 42 contacts the bottom surface 4111 of the clamping groove 411. Continue to rotate the filter element 100, and the clamping block 42 gradually slides into the clamping groove 411 under the guiding action of the guiding surface 4114. Continue to rotate the filter element 100, and the clamping block 42 gradually detaches from the guiding surface 4114 and contacts the reverse buckle surface 4115. Continue to rotate the filter element 100 until the clamping block 42 abuts against the end surface 4116 and cannot rotate. At this time, the connection and locking of the sealing joint are completed.

[0060] It should be noted that the reverse buckle surface 4115 in the present application has an anti-disengagement function, that is, it prevents the clamping block 42 from disengaging from the clamping groove 411. The end surface 4116 has a limiting function. When the clamping block 42 abuts against the end surface 4116, the sealing joint is connected and locked, the male and female connectors are inserted and mated, and the O-ring is squeezed and deformed to seal the gap between the male and female connectors.

[0061] Combined with Figures 1 to 7 , the following describes a complete embodiment of the present application:

[0062] The present invention provides a waterway board structure integrally formed by a mold. This structure does not require complex operations such as hot plate welding. Its structure can be divided into two parts according to different assembly positions, namely a waterway board assembly part (including a waterway board, a female joint 20, and a card seat 41) and a filter element assembly part (including a filter element 100, a male joint 10, and a clamping block 42).

[0063] 1. Installation and locking process of the filter element 100:

[0064] The user first pushes the filter element 100 to the end. After it cannot be pushed any further, the user rotates the filter element 100. When the filter element 100 rotates to a certain angle, the clamping block 42 on the male joint 10 of the filter element 100 contacts the guiding surface (guide surface 4114) of the card seat 41. At this time, when the user rotates the filter element, the filter element 100 decomposes the resistance of the sealing ring (sealing member 30) through the card seat 41 into a resistance along the inclined plane and a resistance perpendicular to the inclined plane (the inclined plane here refers to the guide surface 4114), thereby achieving the purpose of labor-saving installation of the filter element 100.

[0065] It should be noted that as Figure 8 shown, F is the resistance of the filter element 100 received by the sealing ring when installing the filter element 100; f is the reaction force generated by the clamping block 42 squeezing the filter element 100 on the guide surface 4114 when installing the filter element 100. Among them, f1 is the vertical component of f, and f2 is the horizontal component of f. f3 is the external force required when installing the filter element 100. When the external force is greater than the reaction force, the filter element 100 can be installed.

[0066] Obviously, in this process, the force for the user to install the filter element 100 is closely related to the inclined plane angle (included angle γ) of the card seat 41. According to various aspects such as the friction of the injection molded part and the resistance of the sealing ring, the present application designs the angle (included angle γ) of the guiding surface to be less than or equal to 30 degrees, so that the user's hand feeling will be more comfortable.

[0067] When the filter element 100 continues to rotate to a certain angle, the filter element 100 disengages from the guiding surface;

[0068] The user continues to rotate the filter element 100 until the filter element 100 abuts against the end surface 4116 on the card seat 41, and at this time the installation is completed.

[0069] 2. Disassembly process of the filter element 100:

[0070] When the installation of the filter element 100 is completed, the filter element 100 needs to overcome the resistance in the opposite direction of the reverse buckle surface 4115 along the direction of the filter element 100 being removed. At this time, the reverse buckle surface 4115 on the card seat 41 has a certain obstructive effect on the removal of the filter element 100. Greatly reduces the risk of the filter element 100 coming out after rotating by itself during long-term operation.

[0071] Based on many years of user experience and a large amount of laboratory experimental data, this application has concluded that when the height difference of the undercut surface 4115 (the height difference between the highest point and the lowest point of the undercut surface 4115 in the height direction of the base 41) is 0.5mm, the risk of the filter element 100 accidentally falling out can be significantly reduced.

[0072] At the same time, the slope angle (angle β) of the undercut surface 4115 should also be as small as possible, otherwise the user will encounter great resistance when removing the filter element 100. Of course, the removal of the filter element 100 also requires overcoming the resistance of the sealing ring.

[0073] Preferably, the angle β is equal to 3°

[0074] The sealing joint and waterway plate structure in this application solves the following problems:

[0075] 1. The waterway plate structure is assembled from multiple parts, which is time-consuming and labor-intensive, and requires multiple sets of molds, resulting in high costs;

[0076] 2. The waterway plate structure is assembled through multiple parts, and there are many parts assembly positions, which leads to the problem of more leakage points.

[0077] From the technical effects described in the specific implementation of this application, it can be seen that: the locking mechanism 40 is provided so that the sealing joint has a self-locking function, which prevents the male joint 10 from escaping from the female joint 20, thereby improving the stability and reliability of the sealing joint connection, and further ensuring that the waterway plate and the filter element 100 can be stably connected, preventing water from leaking from the connection between the waterway plate and the filter element 100, so as to ensure that the water purifier can work normally. Moreover, the sealing joint in the present application has a compact structure, and compared with the sealing joint in the related art, it simplifies the composition of parts, thereby avoiding the problem of a high risk of leakage at the connection between the waterway plate and the filter element 100 caused by the complex structure of the sealing joint. Thereby improving the stability and reliability of the water purifier. Compared with the waterway plate structure in the related art, the waterway plate structure of the present application simplifies the composition of parts, and its structure is more compact and reasonable, thereby improving the stability and reliability of the use of the water purifier.

[0078] In the description of the present invention, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "back", "inside", "outside", "left", "right" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention 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 understood as limiting the present invention.

[0079] Although the present invention has been described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. Accordingly, it should be understood that numerous modifications may be made to the exemplary embodiments, and other arrangements may be devised, without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that different dependent claims and the features described herein may be combined in ways different from those described in the original claims. It should also be understood that the features described in connection with separate embodiments may be used in other described embodiments.

Claims

1. A sealing joint, characterized in that: include: Male connector; A female connector, plugged into and mated with the male connector; A sealing member, sleeved on the outer circumference of the male connector; Wherein, the sealing joint further comprises a locking mechanism, and when the male joint is plugged into and matched with the female joint, the locking mechanism can lock the male joint onto the female joint; The locking mechanism comprises: A card seat, provided with a card slot, the card seat is sleeved on the outer periphery of the female connector; A clamping block, arranged on the outer peripheral surface of the male connector; Wherein, when the male connector is plugged into the female connector, the clamping block is clamped and locked in the clamping groove; The card slot comprises: first groove wall surface; a second groove wall surface, arranged opposite to the first groove wall surface; A groove bottom surface is connected to the first groove wall surface and the second groove wall surface and is located between the first groove wall surface and the second groove wall surface, and the clamping block is clamped and locked on the groove bottom surface; The bottom surface of the groove comprises: Guide surface and undercut surface; Wherein, the guide surface cooperates with the clamping block to guide it into the clamping groove, and the undercut surface cooperates with the clamping block to lock it in the clamping groove; The clamping groove further includes a finishing surface and a connecting surface, wherein the finishing surface is used to connect the second groove wall surface and the undercut surface, and the connecting surface is used to connect the first groove wall surface and the guide surface, one side of the undercut surface is connected to the other side of the guide surface, the connecting surface is a plane, and the finishing surface is an arc surface; The card holder comprises: A body, provided with a through hole; A convex block is arranged along the circumference of the body, and the convex block is at least partially arranged in the through hole; The clamping groove is arranged on the body and the protrusion in a radial direction of the body; The clamping block is provided with a first contact surface and a second contact surface connected to the first contact surface, the first contact surface is matched with the guide surface, and the second contact surface is matched with the undercut surface.

2. The sealing joint according to claim 1, characterized in that: The guide surface and the reference surface have an included angle γ, the included angle γ is formed below the reference surface, and the value range of the included angle γ is: 0°<γ≤30°.

3. The sealing joint according to claim 1, characterized in that: The undercut surface and the reference surface have an included angle β, the included angle β is formed above the reference surface, and the value range of the included angle β is: 2°≤β≤4°.

4. The sealing joint according to claim 3, characterized in that: The angle β is equal to 3°.

5. A waterway plate structure for a water purifier, characterized in that: include: Waterway board; Filter element; The sealing joint as described in any one of claims 1 to 4, wherein a portion of the sealing joint is arranged on the waterway plate, and another portion is arranged on the filter element, and the sealing joint is used to seal the waterway plate and the filter element together.

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