A water distribution valve, a water distribution device, and a dishwasher

Abstract

This utility model relates to a water distribution valve, a water distribution device, and a dishwasher. The water distribution valve includes a valve body, a valve core, and a valve seat. The valve body includes an inlet and an outlet, with at least two outlets. The valve seat is connected to the valve body and encloses it to form a water distribution cavity. The valve core is located within the water distribution cavity and includes a baffle plate, a rotating body, and an elastic element. The baffle plate and the rotating body are movably connected, and the elastic element is disposed between the baffle plate and the rotating body. The rotating body is configured to be connected to a driving device to drive the baffle plate to rotate within the water distribution cavity. When the driving device operates, it drives the rotating body to rotate the baffle plate within the water distribution cavity, causing the baffle plate to stop at a selected outlet and block it. Because the baffle plate and the rotating body are movably connected, and an elastic element is disposed between them, the elastic element drives the baffle plate to move towards the cavity wall of the water distribution cavity, so that the baffle plate tightly covers the outlet, preventing water leakage.

Description

Technical Field

[0001] This utility model relates to the field of water distribution valve technology, and in particular to a water distribution valve, water distribution device and dishwasher. Background Technology

[0002] To save water and electricity or for other functional needs, most dishwashers in China now come with a water distribution valve. Currently, there are two types of water distribution valves: the first is integrated into the water cup, and the second is separate, installed independently within the inner tub. The first type, with the valve integrated into the water cup, reduces the number of parts but increases the size of the water cup, leading to higher water consumption per cycle. The second type, with the valve separate, reduces water consumption per cycle. However, both types of water distribution valves cannot solve the problem of leakage. Utility Model Content

[0003] Therefore, it is necessary to provide a new type of water distribution valve that addresses the leakage problem that existing water distribution valves cannot solve.

[0004] The first aspect of this application provides a water distribution valve, including a valve body, a valve core, and a valve seat;

[0005] The valve body includes an inlet and an outlet, and the number of outlets is not less than two.

[0006] The valve seat is connected to the valve body and encloses it to form a water distribution cavity, which is connected to the water inlet and the water outlet.

[0007] The valve core is located in the water distribution chamber. The valve core includes a water baffle, a rotating body, and an elastic element. The water baffle is movably connected to the rotating body, and the elastic element is disposed between the water baffle and the rotating body. The elastic element is used to drive the water baffle to move toward the water outlet.

[0008] The rotating body is configured to be connected to a drive device to drive the baffle plate to rotate within the water distribution chamber, thereby blocking the selected water outlet.

[0009] This application discloses a water distribution valve, in which a valve seat and a valve body enclose a water distribution cavity, the water distribution cavity having an inlet and at least two outlets; the valve core includes a baffle plate, a rotating body, and an elastic element, the rotating body being connected to the baffle plate and an external driving device respectively, when the driving device operates, driving the rotating body to rotate the baffle plate within the water distribution cavity, the baffle plate stopping at a selected outlet and blocking it; the baffle plate and the rotating body are movably connected, and an elastic element is provided between the baffle plate and the rotating body, the elastic element providing power to drive the baffle plate to move towards the cavity wall of the water distribution cavity, thereby making the baffle plate tightly cover the outlet, preventing gaps from forming between the baffle plate and the outlet, thus avoiding water leakage.

[0010] In one embodiment, the rotating body has a limiting hole, and the water baffle is provided with a fastener, which is movably engaged with the limiting hole.

[0011] In one embodiment, one of the rotating body or the water-blocking plate is provided with a sliding groove, and the other is provided with a limiting post, which is slidably disposed in the sliding groove.

[0012] In one embodiment, one of the water-blocking plate or the rotating body is provided with a positioning post, and the other is provided with an assembly groove. One end of the elastic member is connected to the assembly groove, and the other end is sleeved around the positioning post and connected to the housing connected to the positioning post.

[0013] In the above embodiment, the water distribution valve fixes the elastic element by means of the cooperation between the baffle plate and the rotating body through the assembly groove and the positioning column, thereby restricting the lateral movement of the elastic element, ensuring that the elastic element remains axially aligned during compression / tension, avoiding uneven force due to offset, and preventing the elastic element from accidentally loosening.

[0014] In one embodiment, the water baffle is provided with the assembly groove, the rotating body is provided with the positioning post, and the rotating body is also provided with a barrier. The barrier is distributed around the positioning post, and the elastic element part sleeved on the positioning post is sandwiched in the gap between the barrier and the positioning post.

[0015] In the above embodiment, the water distribution valve has an elastic element sandwiched in the gap between the enclosure and the positioning post, which further restricts the lateral movement of the spring, ensures that it remains axially aligned during compression / tension, avoids uneven force due to offset, and ensures the directional force of the elastic element, so that the elastic element directly drives the baffle plate to move towards the cavity wall of the water distribution chamber.

[0016] In one embodiment, the water-blocking plate is further provided with at least two slots of different widths, and the rotating body is provided with limiting ribs. The number of limiting ribs is the same as the number of slots, and they are matched and engaged one-to-one.

[0017] In the above embodiments, the water distribution valve, the water baffle, and the rotating body are provided with at least two sets of snap-fit ​​structures. Based on the different widths of the slots in each set of snap-fit ​​structures, each limiting rib needs to be assembled accordingly. Through the cooperation of the limiting rib and the slot, the assembly and positioning of the water baffle and the rotating body can be quickly achieved, avoiding incorrect assembly.

[0018] In one embodiment, the elastic element is a spring structure.

[0019] In one embodiment, the baffle plate has at least one groove formed on the surface of the side of the water distribution cavity near the cavity wall to reduce the resistance of the baffle plate to rotation in the cavity wall of the water distribution cavity.

[0020] In the above embodiment, the water distribution valve forms at least one groove on the surface of the baffle plate. Based on this, without affecting the sealing effect of the baffle plate on the outlet, the actual contact area between the baffle plate and the rotating body can be effectively reduced, thereby reducing sliding friction and preventing rotation jamming.

[0021] In one embodiment, a first sealing ring is provided between the valve seat and the valve body.

[0022] In the above embodiment, the water distribution valve has a first sealing ring between the valve seat and the valve body. Based on this, the first sealing ring fills the gap between the valve seat and the valve body to prevent liquid leakage. At the same time, the first sealing ring is elastic and can automatically adjust its deformation according to changes in system pressure to maintain the balance of sealing force.

[0023] A second aspect of this application provides a water distribution device, including a driving device and a water distribution valve as described in any of the above claims. The valve seat has a first through hole. The driving device includes a drive motor and a transmission shaft. One end of the transmission shaft is connected to the output end of the drive motor, and the other end passes through the first through hole and is connected to the rotating body.

[0024] In one embodiment, a second sealing ring is provided between the valve seat and the drive shaft.

[0025] A third aspect of this application provides a dishwasher that includes the aforementioned water distribution device. Attached Figure Description

[0026] Figure 1 This is an exploded view of the water separation device in one embodiment;

[0027] Figure 2 A cross-section of the water distribution device in one embodiment. Figure 1 ;

[0028] Figure 3 This is a schematic diagram of the water-blocking plate in one embodiment;

[0029] Figure 4 This is a schematic diagram of the structure of the rotating body in one embodiment;

[0030] Figure 5 A cross-section of the water distribution device in one embodiment. Figure 2 (The second outlet is open, while the first outlet is closed);

[0031] Figure 6 A cross-section of the water distribution device in one embodiment. Figure 3 (Both the first and second water outlets are connected);

[0032] Figure 7 A cross-section of the water distribution device in one embodiment. Figure 4 (The first outlet is open, while the second outlet is closed);

[0033] Figure 8 A cross-section of the water distribution device in one embodiment. Figure 5 (Both the first and second water outlets are shut down.)

[0034] The correspondence between the reference numerals and the component names is as follows:

[0035] 100 water distribution valve, 11 valve body, 101 water distribution chamber, 102 water inlet, 103 water outlet, 103a first water outlet, 103b second water outlet;

[0036] 12 Valve core, 121 Water baffle, 122 Rotating body, 123 Elastic element, 1211 Buckle, 1212 Assembly groove, 1202 Groove, 1203 Annular fitting platform, 1221 Positioning post, 1222 Enclosure, 1223 Limiting rib, 104 Limiting hole;

[0037] 13 Valve seat, 105 First through hole;

[0038] 200 Drive unit, 21 Drive motor, 22 Drive shaft. Detailed Implementation

[0039] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0040] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0041] Some embodiments of the water distribution valve of the present invention are described below with reference to the accompanying drawings.

[0042] like Figures 1 to 8 As shown, this embodiment discloses a water distribution valve, including a valve body 11, a valve core 12, and a valve seat 13;

[0043] The valve body 11 includes an inlet 102 and an outlet 103, and the number of outlets 103 is not less than two;

[0044] The valve seat 13 is connected to the valve body 11 and encloses it to form a water distribution chamber 101, which is connected to the inlet 102 and the outlet 103.

[0045] The valve core 12 is located in the water distribution chamber 101. The valve core 12 includes a baffle plate 121, a rotating body 122 and an elastic element 123. The baffle plate 121 is movably connected to the rotating body 122, and the elastic element 123 is disposed between the baffle plate 121 and the rotating body 122. The elastic element 123 is used to drive the baffle plate 121 to move toward the outlet 103.

[0046] The rotating body 122 is configured to be connected to the drive device 200 to drive the baffle plate 121 to rotate in the water distribution chamber 101, thereby blocking the selected outlet 103.

[0047] The water distribution valve of this application has a valve seat 13 and a valve body 11 enclosing a water distribution cavity 101. The water distribution cavity 101 is provided with an inlet 102 and at least two outlets 103. The valve core 12 includes a baffle plate 121, a rotating body 122, and an elastic element 123. The rotating body 122 is connected to the baffle plate 121 and an external driving device 200. When the driving device 200 is working, it drives the rotating body 122 to drive the baffle plate 121 to rotate within the water distribution cavity 101. 21 stops at the selected outlet 103 and blocks it; the water baffle 121 and the rotating body 122 are movably connected, and an elastic element 123 is provided between the water baffle 121 and the rotating body 122. The elastic element 123 can provide power to drive the water baffle 121 to move towards the cavity wall of the water distribution cavity 101, so that the water baffle 121 tightly covers the outlet 103, avoiding the formation of gaps between the water baffle 121 and the outlet 103, which would cause water leakage.

[0048] The valve body 11 and valve seat 13 can enclose a water distribution chamber 101. The valve body 11 has an inlet 102 and an outlet 103 communicating with the water distribution chamber 101. Liquid injected into the water distribution chamber 101 through the inlet 102 can be discharged through different outlets 103. The number of outlets 103 can be no less than two. For example, there can be two outlets 103, namely a first outlet 103a and a second outlet 103b. The first outlet 103a and the second outlet 103b can be connected to different spray arms of the dishwasher, respectively. It should be noted that in other embodiments, the valve body 11 may also be provided with a third, fourth, or fifth outlet, etc. Furthermore, the outlets 103 are not limited to being connected to the spray arms of the dishwasher; they can also be connected to other water-using equipment.

[0049] The valve core 12 can be used to selectively open or close a selected outlet 103. The valve core 12 may include a baffle plate 121, a rotating body 122, and an elastic element 123. The baffle plate 121 may be an arc-shaped sheet structure that matches the shape of the cavity wall of the water distribution chamber 101. When the baffle plate 121 is tightly attached to the outlet 103, it blocks the corresponding outlet 103.

[0050] The rotating body 122 is connected to the baffle plate 121 and the driving device 200. The driving device 200 drives the rotating body 122 to rotate, thereby causing the baffle plate 121 to rotate within the water distribution chamber 101, thus blocking different water outlets 103. The length of the baffle plate 121 can be designed according to actual needs. Taking two water outlets 103 as an example, when the length of the baffle plate 121 is long, by rotating the baffle plate 121, the baffle plate 121 can be stopped at different positions, so that the baffle plate 121 can block both water outlets 103 at the same time, or not block both water outlets 103 at the same time, or select one to be blocked. When the length of the baffle plate 121 is short, it can only block one water inlet 102 at the same time, or not block both water outlets 103 at the same time. Additionally, it should be noted that in other embodiments, when there are multiple outlets 103, a variety of water path control schemes and combinations can be obtained by reasonably configuring the length of the baffle plate 121.

[0051] The elastic element 123 can be disposed between the water baffle 121 and the rotating body 122. Since the water baffle 121 and the rotating body 122 are movably connected, the elastic element 123 can drive the water baffle 121 to move towards the cavity wall of the water distribution cavity 101, so that the water baffle 121 tightly covers the water outlet 103, avoiding the formation of gaps between the water baffle 121 and the water outlet 103, which would lead to water leakage.

[0052] like Figure 1 and Figure 2 , Figure 3 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: a limiting hole 104 is provided on the rotating body 122, and a fastening member 1211 is provided on the water baffle 121, and the fastening member 1211 is movably engaged with the limiting hole 104.

[0053] The fastener 1211 is movable relative to the limiting hole 104. The elastic element 123, positioned between the rotating body 122 and the baffle plate 121, ensures that the baffle plate 121 moves towards the wall of the water distribution chamber 101. Furthermore, the fastener 1211 engages with the limiting hole 104, limiting the displacement distance of the baffle plate 121 relative to the rotating body 122, thereby limiting the minimum contact distance between the baffle plate 121 and the wall of the water distribution chamber 101. Further, the number of limiting holes 104 can be no less than one, such as two, three, or more, and the number of fasteners 1211 is configured to be the same as the number of limiting holes 104.

[0054] In addition to the features of the above embodiments, this embodiment further specifies that: one of the rotating body 122 or the water baffle 121 is provided with a sliding groove, and the other is provided with a limiting post, the limiting post being slidably disposed in the sliding groove.

[0055] Unlike the above embodiments, this embodiment is based on the cooperation of the limiting post and the sliding groove to realize the movable connection between the rotating body 122 and the water baffle 121. Moreover, the water baffle 121 can be displaced relative to the rotating body 122 under the action of the elastic member 123 and move towards the cavity wall of the water distribution cavity 101.

[0056] like Figure 1 and Figure 3 , Figure 4 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: one of the water baffle 121 or the rotating body 122 is provided with a positioning post 1221, and the other is provided with an assembly groove 1212. One end of the elastic member 123 is connected to the assembly groove 1212, and the other end is sleeved around the positioning post 1221 and connected to the housing connected to the positioning post 1221.

[0057] In the above embodiment, the water distribution valve 100 limits the water baffle 121 and the rotating body 122 to cooperate with the mounting groove 1212 and the positioning post 1221 to fix the elastic member 123, thereby restricting the lateral movement of the elastic member 123, ensuring that the elastic member 123 remains axially aligned during compression / tension, avoiding uneven force due to offset, and preventing the elastic member 123 from accidentally loosening.

[0058] The assembly groove 1212 can be distributed on the water baffle 121, and the positioning post 1221 can be a columnar structure protruding from the surface of the rotating body 122. When one end of the elastic member 123 is inserted into the assembly groove 1212, the other end is sleeved on the periphery of the positioning post and abuts against the surface of the rotating body 122.

[0059] like Figure 1 and Figure 3 , Figure 4 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the water baffle 121 is provided with an assembly groove 1212, the rotating body 122 is provided with a positioning post 1221, the rotating body 122 is also provided with a barrier 1222, the barrier 1222 is distributed around the positioning post 1221, and the elastic member 123 sleeved on the positioning post 1221 is partially sandwiched in the gap between the barrier 1222 and the positioning post 1221.

[0060] In the above embodiment, the water distribution valve 100 limits the gap between the elastic element 123 and the positioning post 1221, further restricting the lateral movement of the spring and ensuring that it remains axially aligned during compression / tension, avoiding uneven force due to offset, and ensuring the directional force of the elastic element 123, so that the elastic element 123 directly drives the baffle plate 121 to move towards the cavity wall of the water distribution cavity 101.

[0061] The positioning post 1221 can be a cylindrical structure, the enclosure 1222 has an annular cross-section and is distributed around the positioning post 1221. A gap is left between the positioning post 1221 and the enclosure 1222 to form a groove structure, so that the elastic element 123 can be assembled in the gap between the positioning post 1221 and the enclosure 1222.

[0062] like Figure 3 and Figure 4 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the water baffle 121 is provided with at least two slots 1201 of different widths, and the rotating body 122 is provided with limiting ribs 1223. The number of limiting ribs 1223 is the same as the number of slots 1201, and they are matched and connected one-to-one.

[0063] In the above embodiment, the water distribution valve 100 defines that the water baffle 121 and the rotating body 122 are provided with no less than two sets of snap-fit ​​structures. Since the width of the slot 1201 in each set of snap-fit ​​structures is different, each limiting rib 1223 needs to be assembled accordingly. Through the cooperation between the limiting rib 1223 and the slot 1201, the assembly and positioning of the water baffle 121 and the rotating body 122 can be quickly positioned to avoid incorrect assembly.

[0064] The number of slots 1201 can be no less than two. For example, there are two slots 1201 with different widths. The number of limiting ribs 1223 is the same as the number of slots 1201, both being two. Each limiting rib 1223 is adapted to and engages with its corresponding slot 1201. It should be noted that the slots 1201 can be spaced apart on the assembly slot 1212. In other embodiments, the number of slots 1201 can be three, four, or more.

[0065] like Figure 1 and Figure 5 As shown, in addition to the features of the above embodiments, this embodiment further specifies that the elastic element 123 is a spring structure.

[0066] like Figure 1 and Figure 5 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the water baffle 121 forms at least one groove 1202 on the surface of the side of the cavity wall near the water distribution cavity 101, so as to reduce the resistance of the water baffle 121 rotating on the cavity wall of the water distribution cavity 101.

[0067] In the above embodiment, the water distribution valve 100 defines that the surface of the baffle plate 121 forms at least one groove 1202. Based on this, without affecting the sealing effect of the baffle plate 121 on the outlet 103, the actual contact area between the baffle plate 121 and the rotating body 122 can be effectively reduced, thereby reducing sliding friction and avoiding rotation jamming.

[0068] Among them, the surface of the water baffle 121 forms annular bonding platforms 1203 in other areas of the groove 1202, the same number as the groove 1202. The annular bonding platforms 1203 are tightly attached to the outer periphery of the selected water inlet 102, thereby blocking the selected water inlet 102.

[0069] like Figure 2 As shown, in addition to the features of the above embodiments, this embodiment further specifies that a first sealing ring 14 is provided between the valve seat 13 and the valve body 11.

[0070] In the above embodiment, the water distribution valve 100 defines a first sealing ring 14 between the valve seat 13 and the valve body 11. Based on this, the first sealing ring 14 fills the gap between the valve seat 13 and the valve body 11 to prevent liquid leakage. At the same time, the first sealing ring 14 is elastic and can automatically adjust its deformation according to changes in system pressure to maintain a balance of sealing force.

[0071] like Figures 1 to 8As shown, this embodiment provides a water distribution device, including a drive device 200 and the aforementioned water distribution valve 100. A first through hole 105 is provided on the valve seat 13. The drive device 200 includes a drive motor 21 and a transmission shaft 22. One end of the transmission shaft 22 is connected to the output end of the drive motor 21, and the other end passes through the first through hole 105 and is connected to the rotating body 122.

[0072] In addition to the features of the above embodiments, this embodiment further specifies that a second sealing ring is provided between the valve seat 13 and the drive shaft 22.

[0073] This embodiment provides a dishwasher, including the water distribution device as described above.

[0074] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0075] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A water distribution valve (100), characterized in that, It includes a valve body (11), a valve core (12), and a valve seat (13); The valve body (11) includes an inlet (102) and an outlet (103), and the number of outlets (103) is not less than two; The valve seat (13) is connected to the valve body (11) and encloses it to form a water distribution chamber (101), which is connected to the water inlet (102) and the water outlet (103). A valve core (12) is located in the water distribution chamber (101). The valve core (12) includes a baffle plate (121), a rotating body (122), and an elastic element (123). The baffle plate (121) is movably connected to the rotating body (122), and the elastic element (123) is disposed between the baffle plate (121) and the rotating body (122). The elastic element (123) is used to drive the baffle plate (121) to move toward the outlet (103). The rotating body (122) is configured to be connected to the drive device (200) to drive the baffle plate (121) to rotate in the water distribution chamber (101) and thereby block the selected outlet (103).

2. The water distribution valve according to claim 1, characterized in that, The rotating body (122) has a limiting hole (104), and the water baffle (121) is provided with a fastener (1211), which is movably engaged with the limiting hole (104); or, One of the rotating body (122) or the water baffle (121) is provided with a sliding groove, and the other is provided with a limiting post, which is slidably disposed in the sliding groove.

3. The water distribution valve according to claim 1 or 2, characterized in that, One of the water-blocking plate (121) or the rotating body (122) is provided with a positioning post (1221), and the other is provided with an assembly groove (1212). One end of the elastic member (123) is connected to the assembly groove (1212), and the other end is sleeved around the positioning post (1221) and connected to the housing connected to the positioning post (1221).

4. The water distribution valve according to claim 3, characterized in that, The water baffle (121) is provided with the assembly groove (1212), the rotating body (122) is provided with the positioning post (1221), the rotating body (122) is also provided with the enclosure (1222), the enclosure (1222) is distributed around the positioning post (1221), and the elastic element (123) sleeved on the positioning post (1221) is partially sandwiched in the gap between the enclosure (1222) and the positioning post (1221).

5. The water distribution valve according to claim 4, characterized in that, The water-blocking plate (121) is also provided with at least two slots (1201) of different widths, and the rotating body (122) is provided with limiting ribs (1223). The number of limiting ribs (1223) is the same as the number of slots (1201), and they are matched and connected one by one.

6. The water distribution valve according to claim 3, characterized in that, The elastic element (123) is a spring structure.

7. The water distribution valve according to claim 1, characterized in that, The water baffle (121) has at least one groove (1202) formed on the surface of the side of the cavity wall near the water distribution cavity (101) to reduce the resistance of the water baffle (121) to rotation of the cavity wall of the water distribution cavity (101).

8. The water distribution valve according to claim 1, characterized in that, A first sealing ring (14) is provided between the valve seat (13) and the valve body (11).

9. A water distribution device, characterized in that, The device includes a drive unit (200) and a water distribution valve (100) as described in any one of claims 1-8. The valve seat (13) has a first through hole (105). The drive unit (200) includes a drive motor (21) and a transmission shaft (22). One end of the transmission shaft (22) is connected to the output end of the drive motor (21), and the other end passes through the first through hole (105) and is connected to the rotating body (122).

10. A dishwasher, characterized in that, Includes the water separation device as described in claim 9 above.

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