Temperature-adjusting pressure-increasing valve core structure and water outlet device

Abstract

The utility model provides a kind of temperature regulating pressure increasing valve core structure, including valve shell, valve stem, be set in the dynamic valve piece of valve shell inside, be set in the fixed valve piece of valve shell inside, with the valve seat connected with valve shell;The installation space is arranged in the valve shell, and first water inlet and second water inlet are arranged in side wall;First water passage is arranged on the valve stem, second water passage and third water passage are arranged on the dynamic valve piece, first water passage is connected with second water passage and first water inlet, first through-hole and second through-hole are arranged on the fixed valve piece;Form mixed space in the installation space, and between fixed valve piece and valve seat, rotate valve stem and drive dynamic valve piece rotation, to adjust the proportion of water flow entering mixed space inside that flows through first water inlet and second water inlet;The valve core structure of the utility model is by being arranged first water inlet and second water inlet in the side wall of valve shell, so that the length of water flow entering valve core structure is improved, to provide foundation for pressure increasing effect.

Description

Technical Field

[0001] This utility model relates to the technical field of faucet accessories, and in particular to a temperature-regulating and pressure-boosting valve core structure and a water outlet device. Background Technology

[0002] Most water heater shower faucets on the market today have a temperature control function, the core of which is the temperature control valve core. This valve core adjusts the mixing ratio of hot and cold water to allow the mixed water to be dispensed at the desired temperature. Cold water from the water tower or public water supply system and hot water from the water heater enter the temperature control valve core, mix inside, and then flow out through the mixing channel after adjustment.

[0003] To save electricity or for practical needs, most households choose non-pressurized water heaters, with the tank placed on the roof and draining by gravity. This results in inconsistent hot water pressure on different floors, especially on higher floors where the hot water pressure is very low. Consequently, the mixed water pressure from the temperature control valve is also very low, making showering uncomfortable and inconvenient in actual use.

[0004] In view of this, the inventor has specifically designed a temperature-regulating and pressure-boosting valve core structure and a water outlet device, which leads to this invention. Utility Model Content

[0005] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a temperature-regulating and pressure-boosting valve core structure. By setting a first water inlet and a second water inlet on the side wall of the valve shell, the length of water flow entering the valve core structure is increased, providing a basis for the pressure boosting effect and overcoming the impact of insufficient water pressure in the temperature-regulating valve core on its use.

[0006] This utility model also proposes a water outlet device.

[0007] According to the present invention, a temperature-regulating and pressure-boosting valve core structure includes a valve housing, a valve stem partially located inside the valve housing and rotatably connected to the valve housing, a movable valve plate disposed inside the valve housing and below the valve stem, a fixed valve plate disposed inside the valve housing and below the movable valve plate, and a valve seat for confining the movable valve plate and the fixed valve plate inside the valve housing and connected to the valve housing. The valve housing has an installation space inside, and a first water inlet and a second water inlet communicating with the installation space are provided on the side wall. The valve stem is provided with a first water passage, the moving valve plate is provided with a second water passage and a third water passage, the first water passage connects the first water inlet and the second water passage, and the fixed valve plate is provided with a first through hole and a second through hole; Within the installation space, and between the fixed valve plate and the valve seat, a mixing space is formed, and the valve seat is provided with a mixing channel communicating with the mixing space; The rotating valve stem drives the valve plate to rotate, thereby adjusting the proportion of water flowing through the first and second inlets into the mixing space.

[0008] The valve core structure of this utility model increases the length of water flow into the valve core structure by setting a first water inlet and a second water inlet on the side wall of the valve shell, thus providing a basis for the pressurization effect.

[0009] In some embodiments of this utility model, the second water passage is close to the center of the moving valve plate, the first through hole is close to the center of the fixed valve plate, and both the second water passage and the first through hole are eccentrically arranged. The third water passage is far from the center of the moving valve plate, and the second through hole is far from the center of the fixed valve plate.

[0010] In some embodiments of this utility model, the cross-sectional area of ​​the first through hole (the cross-sectional area perpendicular to the central axis of the fixed valve plate) is smaller than the cross-sectional area of ​​the second through hole (the cross-sectional area perpendicular to the central axis of the fixed valve plate). Furthermore, the ratio of the cross-sectional area of ​​the first through hole to the cross-sectional area of ​​the second through hole is 1:6 to 1:20.

[0011] In some embodiments of this utility model, the remaining portion of the valve stem is located outside the valve housing and is used to drive the valve stem to rotate the valve disc.

[0012] In some embodiments of this utility model, the moving valve plate is located at the opening of the second channel and has a protrusion facing the mixing space.

[0013] In some embodiments of this utility model, the valve seat extends outward to form a cylindrical portion, and the mixing channel is disposed within the cylindrical portion.

[0014] In some embodiments of this utility model, a first transition surface is provided on the outer side of the protrusion near the mixing channel, and a second transition surface is provided at the opening of the mixing channel at one end of the protrusion. The first transition surface is an inclined surface, and the second transition surface is an arc-shaped surface.

[0015] In some embodiments of this invention, the cross-section of the mixing channel perpendicular to its central axis covers the cross-section of the first through hole.

[0016] In some embodiments of this utility model, the valve stem includes a rotating component located inside the valve housing and a driving component connected to the rotating component, wherein the driving component drives the rotating component to rotate.

[0017] In some embodiments of this utility model, the valve stem further includes a connecting shaft, which mounts one end of the driving component onto the rotating component.

[0018] In some embodiments of this utility model, two first limiting steps are provided inside the valve housing to form a limiting area between the two first limiting steps, and a second limiting step is provided on the valve stem corresponding to the limiting area. The second limiting step is located between the two first limiting steps to limit the rotation range of the valve stem.

[0019] In some embodiments of this utility model, a first positioning step is provided below the valve stem, and a first positioning groove is provided on the moving valve plate corresponding to the first positioning step.

[0020] In some embodiments of this utility model, a second positioning step is provided on the valve seat, and a second positioning groove is provided on the fixed valve plate corresponding to the second positioning step.

[0021] In some embodiments of this utility model, a third positioning step is further provided on the moving valve plate, and a third positioning groove is provided on the valve shell corresponding to the third positioning step.

[0022] In some embodiments of this utility model, a buckle is also provided on the valve seat, and a groove is provided on the inner side of the valve body corresponding to the buckle.

[0023] According to the present invention, a water outlet device includes a valve core structure. The valve core structure is constructed using a temperature-regulating and pressure-boosting valve core structure. The water outlet device also includes a cold water valve core and a hot water valve core. The cold water valve core enables cold water to flow into the valve core structure, and the hot water valve core enables hot water to enter the valve core structure. The valve core structure mainly achieves the mixing and pressure-boosting effect. Attached Figure Description

[0024] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0025] in: Figure 1 This is a schematic diagram of the valve core structure of this utility model; Figure 2 This is a cross-sectional schematic diagram of the valve core structure of this utility model; Figure 3 This is an exploded view of the valve core structure of this utility model. Figure 1 ; Figure 4 This is an exploded view of the valve core structure of this utility model. Figure 2 ; Figure 5 This is a schematic diagram of the valve housing of this utility model; Figure 6 This is a schematic diagram of the internal structure of the rotating component of this utility model.

[0026] Label Explanation: 10. Valve housing; 11. Installation space; 12. First inlet; 13. Second inlet; 14. First limiting step; 15. Third positioning groove; 16. Slot; 20. Valve stem; 201. First water passage; 202. Second limiting step; 203. First positioning step; 21. Rotating component; 22. Driving component; 23. Connecting shaft; 30. Moving valve plate; 31. Second water passage; 32. Third water passage; 33. First positioning groove; 40. Fixed valve plate; 401. Protrusion; 41. First through hole; 42. Second through hole; 43. Second positioning groove; 50. Valve seat; 51. Cylindrical part; 511. Mixing channel; 52. Second positioning step; 53. Third positioning step; 54. Snap-fit; 60. Mixing space. Detailed Implementation

[0027] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model. Example 1

[0028] Please see Figures 1 to 6 This is a temperature-regulating and pressure-boosting valve core structure according to Embodiment 1 of this utility model, including a valve housing 10, a valve stem 20 partially located inside the valve housing 10 and rotatably connected to the valve housing 10, a movable valve plate 30 disposed inside the valve housing 10 and below the valve stem 20, a fixed valve plate 40 disposed inside the valve housing 10 and below the movable valve plate 30, and a valve seat 50 for confining the movable valve plate 30 and the fixed valve plate 40 inside the valve housing 10 and connected to the valve housing 10; the remaining part of the valve stem 20 is located outside the valve housing 10 and is used to drive the valve stem 20 to drive the movable valve plate 30 to rotate. The valve housing 10 has an internal installation space 11, and its side wall has a first inlet 12 and a second inlet 13 communicating with the installation space 11. The valve stem 20 has a first water passage 201, and the movable valve plate 30 has a second water passage 31 and a third water passage 32. The first water passage 201 connects the first inlet 12 and the second water passage 31. The fixed valve plate 40 has a first through hole 41 and a second through hole 42. A mixing space 60 is formed within the installation space 11, between the fixed valve plate 40 and the valve seat 50. The valve seat 50 has a mixing channel 511 communicating with the mixing space 60. Rotating the valve stem 20 causes the movable valve plate 30 to rotate, thereby adjusting the proportion of water flowing through the first inlet 12 and the second inlet 13 entering the mixing space 60. The valve core structure of this invention, by providing the first inlet 12 and the second inlet 13 on the side wall of the valve housing 10, increases the length of water entering the valve core structure, providing a basis for pressurization.

[0029] Please refer to the details. Figure 2 The second water passage 31 is located near the center of the moving valve plate 30, and the first through hole 41 is located near the center of the fixed valve plate 40. Both the second water passage 31 and the first through hole 41 are eccentrically positioned. The third water passage 32 is located away from the center of the moving valve plate 30, and the second through hole 42 is located away from the center of the fixed valve plate 40. This arrangement allows for the adjustment of the water output ratio. The cross-sectional area of ​​the first through hole 41 (the cross-sectional area perpendicular to the central axis of the fixed valve plate 40) is smaller than the cross-sectional area of ​​the second through hole 42 (the cross-sectional area perpendicular to the central axis of the fixed valve plate 40). Preferably, the ratio of the first cross-sectional area to the second cross-sectional area is 1:3. Of course, this ratio can be adjusted as needed, for example, from 1:2 to 1:6. Simultaneously, cold water enters through the first inlet 12, and hot water enters through the second inlet 13. The cross-section of the mixing channel 511 perpendicular to its central axis covers the cross-section of the first through hole 41. This ensures that most of the water flow ejected from the first through hole 41 can enter the mixing channel 511.

[0030] Please refer to the details. Figure 2 To improve the mixing effect of cold and hot water, the height of the mixing space 60 needs to be large enough. However, due to the large height, the distance between the opening of the first through hole 41 and the opening of the mixing channel 511 is too large, affecting the pressurization effect. Therefore, a protrusion 401 is provided to shorten the distance. Specifically, the movable valve plate 30 is located at the opening of the second channel and has a protrusion 401 facing the mixing space 60. That is, the height of the first through hole 41 is extended to shorten the distance between the opening of the first through hole 41 and the opening of the mixing channel 511, thereby increasing the outlet water pressure.

[0031] Please refer to the details. Figure 2 , 3 The valve seat 50 extends outward to form a cylindrical portion 51, and the mixing channel 511 is disposed within the cylindrical portion 51.

[0032] Please refer to the details. Figure 2 A first transition surface is provided on the outer side of the protrusion 401 near the mixing channel 511, and a second transition surface is provided at the opening of the mixing channel 511 at one end of the protrusion 401. The first transition surface is an inclined surface, and the second transition surface is an arc-shaped surface. The first transition surface and the second transition surface cooperate with each other to allow the water flow in the mixing space 60 to flow into the mixing channel 511 better, which can further improve the pressurization effect. Specifically, an inclined channel with a certain distance is formed between the first transition surface and the second transition surface. The inclined channel connects the mixing space 60 and the mixing channel 511. The water flow in the first through hole 41 enters the mixing channel 511 and generates a jet. The inclined channel can better drive the surrounding water flow.

[0033] Please refer to the details. Figure 2 , 34. The valve stem 20 includes a rotating component 21 located within the valve housing 10 and a driving component 22 connected to the rotating component 21. Rotating the driving component 22 causes the rotating component 21 to rotate. The valve stem 20 also includes a connecting shaft 23, which mounts one end of the driving component 22 onto the rotating component 21. The rotating component 21 has a mounting hole, into which the lower part of the driving component 22 can be inserted. The connecting shaft 23 passes through the driving component 22 and the rotating component 21, thus connecting the driving component 22 and the rotating component 21. Both the driving component 22 and the rotating component 21 have holes for the connecting shaft 23 to pass through.

[0034] Please refer to the details. Figure 2 To ensure a good seal, sealing rings are provided between the rotating part 21 and the inner side of the valve housing 10, and between the driving part 22 and the rotating part 21. The first water passage 201 is located on the rotating part 21. Sealing rings are also provided between the bottom of the valve stem 20 and the moving valve plate 30, and between the valve housing 10 and the fixed valve plate 40. Since the moving valve plate 30 and the fixed valve plate 40 are made of ceramic, they inherently provide a seal, so no additional sealing rings are needed. The sealing rings are installed in designated positions, where an annular groove for embedding the sealing ring can be provided.

[0035] Please refer to the details. Figure 5 , 6 In order to limit the rotation angle of the valve stem 20, two first limiting steps 14 are provided inside the valve body 10 so that a limiting area is formed between the two first limiting steps 14. A second limiting step 202 is provided on the valve stem 20 corresponding to the limiting area. The second limiting step 202 is located between the two first limiting steps 14 to limit the rotation range of the valve stem 20.

[0036] Please refer to the details. Figure 3 , 4 A first positioning step 203 is provided below the valve stem 20, and a first positioning groove 33 is provided on the movable valve plate 30 corresponding to the first positioning step 203. Through the cooperation of the first positioning step 203 and the first positioning groove 33, the valve stem 20 can drive the movable valve plate 30 to rotate during its rotation. The number of first positioning steps 203 and first positioning grooves 33 can be set as needed; this invention provides three, and one of the first positioning steps 203 can have a different width than the other two, which can prevent incorrect installation between the valve stem 20 and the movable valve plate 30.

[0037] Please refer to the details. Figure 3 , 4A second positioning step 52 is provided on the valve seat 50, and a second positioning groove 43 is provided on the fixed valve plate 40 corresponding to the second positioning step 52. Through the cooperation of the second positioning step 52 and the second positioning groove 43, the fixed valve plate 40 can be relatively fixed during the rotation of the movable valve plate 30. The number of second positioning steps 52 and second positioning grooves 43 can be set as needed; this invention provides four, and one of the second positioning steps 52 can have a different width than the other two, which can prevent incorrect installation between the fixed valve plate 40 and the valve seat 50.

[0038] Please refer to the details. Figure 3 , 4 The valve disc 30 is further provided with a third positioning step 53, and the valve body 10 is provided with a third positioning groove 15 corresponding to the third positioning step 53. The third positioning step 53 and the third positioning groove 15 allow the valve seat 50 to be relatively fixed on the valve body 10. Two of each type of groove are required. The valve seat 50 is also provided with a snap fastener 54, and a slot 16 is provided on the inner side of the valve body 10 corresponding to the snap fastener 54. The snap fastener 54 and the slot 16 allow for installation between the valve seat 50 and the valve body 10. Two of each type of groove are required. The snap fastener 54 includes an upwardly extending connecting portion and a hook portion located on the outer wall above the connecting portion. After the snap fastener 54 is installed, the connecting portion is located on the inner wall of the valve body 10, and the hook portion is embedded in the slot 16.

[0039] The switching process of the valve core structure of this utility model is as follows: Taking a method where cold water enters through the first inlet 12 and hot water enters through the second inlet 13 (this water outlet method is preferred), the first inlet 12, the first water passage 201, and the second water passage 31 form a cold water inlet channel, while the second inlet 13 and the third water passage 32 form a hot water inlet channel. When the second water passage 31 is completely offset from the first through hole 41, the hot water flows from the hot water inlet channel into the second through hole 42 and then into the mixing space 60. Finally, only hot water exits the mixing channel 511. Figure 2As shown in the diagram; rotating the valve stem 20 causes the valve plate 30 to rotate, the second water passage 31 partially overlaps with the first through hole 41, and the third water passage 32 partially overlaps with the second through hole 42. Cold water in the cold water inlet channel enters the mixing space 60 through the first through hole 41, and hot water in the hot water inlet channel enters the mixing space 60 through the second through hole 42. After the cold water and hot water are mixed, they flow out from the mixing channel 511. As the valve plate 30 continues to rotate, the overlap between the second water passage 31 and the first through hole 41 gradually increases, and the overlap between the third water passage and the second through hole 42 gradually decreases. The temperature of the water flowing out of the mixing channel 511 decreases until the third water passage 32 and the second through hole 42 are completely misaligned. At this point, the hot water inlet is cut off, and the cold water flows from the cold water inlet channel into the first through hole 41 and then into the mixing space 60. Finally, only cold water flows out of the mixing channel 511. Example 2

[0040] Please see Figures 1 to 6 This is a water outlet device according to Embodiment 2 of the present utility model, including a valve core structure. The valve core structure adopts a temperature-regulating and pressurizing valve core structure in Embodiment 1. The water outlet device also includes a cold water valve core and a hot water valve core. The cold water valve core enables cold water to flow into the valve core structure, and the hot water valve core enables hot water to enter the valve core structure. The valve core structure mainly achieves the mixing and pressurizing effect.

[0041] In summary, the valve core structure of this utility model increases the length of water flow into the valve core structure by setting a first inlet and a second inlet on the side wall of the valve body, which provides a basis for the pressurization effect. At the same time, it also limits other structures, which further enhances the pressurization effect.

[0042] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A temperature-regulating and pressure-boosting valve core structure, characterized in that, Includes a valve housing (10), a valve stem (20) partially located inside the valve housing (10) and rotatably connected to the valve housing (10), a movable valve plate (30) disposed inside the valve housing (10) and below the valve stem (20), a fixed valve plate (40) disposed inside the valve housing (10) and below the movable valve plate (30), and a valve seat (50) for confining the movable valve plate (30) and the fixed valve plate (40) inside the valve housing (10) and connected to the valve housing (10); The valve housing (10) has an installation space (11) inside, and a first water inlet (12) and a second water inlet (13) communicating with the installation space (11) on the side wall. The valve stem (20) is provided with a first water passage (201), the moving valve plate (30) is provided with a second water passage (31) and a third water passage (32), the first water passage (201) connects the first water inlet (12) and the second water passage (31), and the fixed valve plate (40) is provided with a first through hole (41) and a second through hole (42). Within the installation space (11), and between the fixed valve plate (40) and the valve seat (50), a mixing space (60) is formed, and a mixing channel (511) communicating with the mixing space (60) is provided on the valve seat (50). Rotating the valve stem (20) causes the valve plate (30) to rotate, thereby adjusting the proportion of water flowing through the first inlet (12) and the second inlet (13) into the mixing space (60).

2. The temperature-regulating and pressure-boosting valve core structure according to claim 1, characterized in that, The moving valve plate (30) is located at the opening of the second channel and has a protrusion (401) facing the mixing space (60).

3. The temperature-regulating and pressure-boosting valve core structure according to claim 1, characterized in that, The cross-section of the mixing channel (511) perpendicular to its central axis covers the cross-section of the first through hole (41).

4. The temperature-regulating and pressure-boosting valve core structure according to claim 1, characterized in that, The valve stem (20) includes a rotating component (21) located inside the valve housing (10) and a driving component (22) connected to the rotating component (21). The rotating driving component (22) drives the rotating component (21) to rotate.

5. The temperature-regulating and pressure-boosting valve core structure according to claim 1, characterized in that, The valve body (10) is provided with two first limiting steps (14) to form a limiting area between the two first limiting steps (14). The valve stem (20) is provided with a second limiting step (202) corresponding to the limiting area. The second limiting step (202) is located between the two first limiting steps (14) to limit the rotation range of the valve stem (20).

6. The temperature-regulating and pressure-boosting valve core structure according to claim 1, characterized in that, A first positioning step (203) is provided below the valve stem (20), and a first positioning groove (33) is provided on the moving valve plate (30) corresponding to the first positioning step (203).

7. The temperature-regulating and pressure-boosting valve core structure according to claim 1, characterized in that, The valve seat (50) is provided with a second positioning step (52), and the fixed valve plate (40) is provided with a second positioning groove (43) corresponding to the second positioning step (52).

8. The temperature-regulating and pressure-boosting valve core structure according to claim 1, characterized in that, The moving valve plate (30) is also provided with a third positioning step (53), and the valve body (10) is provided with a third positioning groove (15) corresponding to the third positioning step (53).

9. The temperature-regulating and pressure-boosting valve core structure according to claim 1, characterized in that, The valve seat (50) is also provided with a buckle (54), and the valve body (10) is provided with a groove (16) corresponding to the buckle (54) on the inner side.

10. A water outlet device, characterized in that, The valve core structure for temperature regulation and pressure boosting is described in any one of claims 1-9.

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