Side-in and side-out type shunt valve element

Abstract

The side-in and side-out type shunt valve element comprises a hollow valve shell, and the side wall of the valve shell is sequentially provided with a first water outlet, a water inlet and a second water outlet from top to bottom; a valve rod is installed in the valve shell in a sliding mode, and the bottom of the valve rod is connected with a sealing piece. A switch assembly is installed at the top of the valve shell and used for driving the valve rod to drive the sealing piece to move up and down. When the sealing piece moves upwards to an upper limit, the water inlet is communicated with the second water outlet; and when the sealing piece moves downwards to the lower limit, the water inlet is communicated with the first water outlet. The first water outlet, the second water outlet and the water inlet are formed in the side wall of the valve shell, the valve rod is driven by the switch assembly to drive the sealing piece to move up and down, rapid switching between the first water outlet and the second water outlet is achieved, and the requirement for side-in and side-out of a waterway in a specific installation environment can be met.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and in particular to a side-inlet, side-outlet water distribution valve core. Background Technology

[0002] As the core component of a faucet, the valve core primarily relies on the movement of the valve stem to achieve basic functions such as directional control, pressure control, or flow control. Currently, valve cores on the market can be categorized into three types based on their function: the first is the on / off valve core, used to open and close the water supply line; the second is the mixing valve core, used to control the opening and closing of the cold and hot water inlet channels and regulate water temperature; some mixing valve cores can also regulate water flow; and the third is the diverter valve core, which controls the direction of water flow and distributes the water outlet channels. Diverter valve cores are typically divided into two-way diverter (shower head and faucet) and three-way diverter (shower head, overhead shower, and faucet) types, depending on the spray system.

[0003] As an essential accessory in the bathroom industry, the water distribution valve core has been used in various products to divide water. Most existing water distribution valve cores have the inlet on the side, one outlet on the side, and the other outlet on the bottom, such as the water distribution valve cores disclosed in Chinese patents with publication numbers CN219472810U and CN212131386U.

[0004] However, with increasing user demands, in certain installation environments (such as when installation space is limited or aesthetic requirements are high), it is required that the inlet and outlet of the water distribution valve core be installed on the side of the valve core. Therefore, the existing water distribution valve core cannot meet the requirements of side inlet and side outlet in specific installation environments. Utility Model Content

[0005] This utility model proposes a side-inlet, side-outlet water distribution valve core, which solves the problem that the existing water distribution valve cores cannot meet the requirements of side-inlet, side-outlet water circuits in specific installation environments.

[0006] The technical solution of this utility model is implemented as follows:

[0007] This utility model provides a side-inlet / side-outlet water distribution valve core, including a hollow valve shell. The side wall of the valve shell is provided with a first outlet, an inlet, and a second outlet from top to bottom. A valve stem is slidably installed inside the valve shell, and a sealing element is connected to the bottom of the valve stem. A switch assembly is installed on the top of the valve shell. The switch assembly is used to drive the valve stem to move the sealing element up and down. When the sealing element moves up to the upper limit position, the inlet is connected to the second outlet. When the sealing element moves down to the lower limit position, the inlet is connected to the first outlet.

[0008] This utility model achieves rapid switching between the first and second water outlets by setting the first outlet, the second outlet, and the inlet on the side wall of the valve body, and by driving the valve stem to move the sealing element up and down through the switch assembly, which can meet the requirements of side inlet and side outlet of water circuit in specific installation environments.

[0009] Specifically, the sealing element includes a cylindrical piston with an outer diameter smaller than the inner diameter of the valve housing. From top to bottom, the piston is provided with a first sealing ring, a second sealing ring, and a third sealing ring. The outer diameters of the first, second, and third sealing rings match the inner diameter of the valve housing. When the first sealing ring is at its upper limit position, the second sealing ring is located between the inlet and the first outlet, and the third sealing ring is located below the second outlet. When the third sealing ring is at its lower limit position, the second sealing ring is located between the inlet and the second outlet, and the first sealing ring is located above the first outlet.

[0010] Specifically, the valve housing is provided with a partition, which divides the internal cavity of the valve housing into an upper cavity and a lower cavity. The valve stem is slidably connected to the partition, the switch assembly is installed in the upper cavity, and the seal is installed in the lower cavity.

[0011] Furthermore, the bottom of the valve housing is closed, a first air passage is provided axially inside the sealing element, a second air passage is provided axially inside the valve stem and communicates with the first air passage, a first vent hole is opened on the side wall of the valve stem, and the upper cavity is connected to the second air passage through the first vent hole; a second vent hole is opened on the partition plate, and the upper cavity and the lower cavity are connected through the second vent hole; by closing the bottom of the valve housing, the sealing performance of the valve housing is further improved, preventing water leakage; and by setting a communicating air passage inside the sealing element and the valve stem, and opening vent holes in the valve housing, side wall and partition plate, the air pressure in the upper cavity and lower cavity is automatically balanced during the up and down sliding of the sealing element. On the one hand, it can avoid abnormal increase in air pressure inside the valve housing and damage to internal components, and on the other hand, it can avoid air pressure forming resistance to the pressing of the switch assembly, ensuring smooth pressing of the switch assembly.

[0012] Specifically, the valve housing includes an upper valve housing, a lower valve housing, and a valve seat from top to bottom. The lower valve housing is detachably connected to the upper valve housing and the valve seat, which facilitates the assembly and disassembly of the valve core and makes it easier for later maintenance. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a cross-sectional structural diagram of a side-inlet / side-outlet water distribution valve core according to the present invention.

[0015] Figure 2 This is a schematic diagram of the external structure of a side-inlet / side-outlet water distribution valve core according to the present invention.

[0016] Figure 3 This is a schematic diagram of a partial internal structure of the water distribution valve core when the switch assembly is in the pressed state in this embodiment of the present invention;

[0017] Figure 4 This is a schematic diagram of a partial internal structure of the water distribution valve core when the switch assembly is not pressed in this embodiment of the present invention;

[0018] In the diagram: 1. First outlet; 2. Inlet; 3. Second outlet; 4. Valve stem; 5. Switch assembly; 6. Piston; 7. First sealing ring; 8. Second sealing ring; 9. Third sealing ring; 10. Partition; 11. Upper cavity; 12. Lower cavity; 13. First air passage; 14. Second air passage; 15. First vent hole; 16. Second vent hole; 17. Upper valve body; 18. Lower valve body; 19. Valve seat. Detailed Implementation

[0019] The technical solution of this utility model will be clearly and completely described below with reference to its embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] Reference Figure 1 , 2 This utility model provides a side-inlet / side-outlet water distribution valve core, including a hollow valve shell. The side wall of the valve shell is provided with a first outlet 1, an inlet 2, and a second outlet 3 from top to bottom. A valve stem 4 is slidably installed inside the valve shell, and a sealing element is connected to the bottom of the valve stem 4. A switch assembly 5 is installed on the top of the valve shell. The switch assembly 5 is used to drive the valve stem 4 to move the sealing element up and down. When the sealing element moves up to the upper limit position, the inlet 2 is connected to the second outlet 3. When the sealing element moves down to the lower limit position, the inlet 2 is connected to the first outlet 1.

[0021] This utility model sets the first outlet 1, the second outlet 3, and the inlet 2 on the side wall of the valve body, and drives the valve stem 4 to move the sealing element up and down through the switch assembly 5, so as to realize the rapid switching between the first outlet 1 and the second outlet 3, which can meet the requirements of side inlet and side outlet of water circuit under specific installation environment.

[0022] Specifically, the sealing element includes a cylindrical piston 6, the outer diameter of which is smaller than the inner diameter of the valve housing (the purpose is to leave an annular water passage between the outer wall of the piston 6 and the inner wall of the valve housing; this water passage is used to connect the inlet 2 with the first outlet 1 and the second outlet 3, so that water entering through the inlet 2 can enter the annular water passage and flow out from the first outlet 1 or the second outlet 3). The piston 6 is provided with a first sealing ring 7, a second sealing ring 8, and a third sealing ring 9 sequentially from top to bottom on its outer surface. The outer diameters of the first sealing ring 7, the second sealing ring 8, and the third sealing ring 9 are smaller than the inner diameter of the valve housing. The inner diameter of the shell is matched, and the second sealing ring 8 divides the water passage into upper and lower water passages. The upper water passage is used to connect the water inlet 2 and the first water outlet 1, and the lower water passage is used to connect the water inlet 2 and the second water outlet 3. When the first sealing ring 7 is at the upper limit position, the second sealing ring 8 is located between the water inlet 2 and the first water outlet 1, and the third sealing ring 9 is located below the second water outlet 3. When the third sealing ring 9 is at the lower limit position, the second sealing ring 8 is located between the water inlet 2 and the second water outlet 3, and the first sealing ring 7 is located above the first water outlet 1.

[0023] Specifically, the valve housing is provided with a partition 10, which divides the internal cavity of the valve housing into an upper cavity 11 and a lower cavity 12. The valve stem 4 is slidably connected to the partition 10. The switch assembly 5 is installed in the upper cavity 11, and the sealing element is installed in the lower cavity 12.

[0024] In the specific implementation process, a step is also provided below the partition 10 to limit the sealing element.

[0025] Furthermore, the bottom of the valve housing is closed, the seal has a first air passage 13 running through it along the axial direction, the valve stem 4 has a second air passage 14 running through it along the axial direction and communicating with the first air passage 13, the side wall of the valve stem 4 has a first vent hole 15, the upper cavity 11 and the second air passage 14 are connected through the first vent hole 15; the partition 10 has a second vent hole 16, the upper cavity 11 and the lower cavity 12 are connected through the second vent hole 16; by closing the bottom of the valve housing, the sealing performance of the valve housing is further improved, preventing water leakage; and by setting a communicating air passage inside the seal and the valve stem 4, and by setting vent holes on the valve housing, side wall and partition 10, the air pressure in the upper cavity 11 and the lower cavity 12 is automatically balanced during the sliding of the seal. On the one hand, this can avoid abnormal increase in air pressure inside the valve housing and damage to internal components, and on the other hand, it can avoid air pressure forming resistance to the pressing of the switch assembly 5, ensuring smooth pressing of the switch assembly 5.

[0026] In the specific implementation process, sealing rings are embedded in the sealing grooves of the outer walls of the first sealing ring 7, the second sealing ring 8, and the third sealing ring 9. The function of the first sealing ring 7 is to prevent water in the lower cavity 12 from seeping into the upper cavity 11, causing the switch assembly 5 in the upper cavity 11 to rust and be damaged. The function of the third sealing ring 9 is to prevent water in the lower cavity 12 from entering the first air passage 13 and then entering the upper cavity 11 through the second air passage 14 and the first vent hole 15. The function of the second sealing ring 8 is to isolate the channel between the water inlet 2 and the first water outlet 1 or the second water outlet 3. When the second sealing ring 8 is located between the water inlet 2 and the first water outlet 1, the channel between the water inlet 2 and the first water outlet 1 is blocked, and the water inlet 2 is connected to the second water outlet 3. When the second sealing ring 8 is located between the water inlet 2 and the second water outlet 3, the channel between the water inlet 2 and the second water outlet 3 is blocked, and the water inlet 2 is connected to the first water outlet 1, thereby realizing the rapid switching of the water outlet.

[0027] Specifically, the valve housing includes an upper valve housing 17, a lower valve housing 18, and a valve seat 19 from top to bottom. The lower valve housing 18 is detachably connected to the upper valve housing 17 and the valve seat 19 (preferably by threaded connection, but can also be detachably connected by snap-fit ​​or other means), which facilitates the assembly and disassembly of the valve core and makes it easier for later maintenance.

[0028] The switch component 5 in this embodiment is existing technology and can directly adopt the switch structure disclosed in CN109630746A or CN219493225U. The operation method of the water distribution valve core in this embodiment is as follows:

[0029] By pressing the switch assembly 5 downwards once, the valve stem 4 is driven downwards to the lower limit and locked. The valve stem 4 pushes the seal downwards until the second sealing ring 8 is located between the inlet 2 and the second outlet 3, thereby blocking the connection between the inlet 2 and the second outlet 3. At this time, the inlet 2 is connected to the first outlet 1. Figure 3 As shown; pressing the switch assembly 5 down again unlocks the valve stem 4. Under the action of the return spring, the valve stem 4 moves upward to its upper limit. The valve stem 4 pulls the seal upward until the second sealing ring 8 is positioned between the inlet 2 and the first outlet 1, thus blocking the connection between the inlet 2 and the first outlet 1. At this time, the inlet 2 is connected to the second outlet 3, as shown. Figure 4 As shown; Figure 3 , Figure 4 In the diagram, solid arrows indicate the direction of water flow, while dashed arrows indicate the direction of airflow.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A side-inlet, side-outlet water distribution valve core, characterized in that, The valve includes a hollow valve housing. The side wall of the valve housing is provided with a first outlet (1), an inlet (2), and a second outlet (3) from top to bottom. A valve stem (4) is slidably installed inside the valve housing. A sealing element is connected to the bottom of the valve stem (4). A switch assembly (5) is installed on the top of the valve housing. The switch assembly (5) is used to drive the valve stem (4) to move the sealing element up and down. When the sealing element moves up to the upper limit, the inlet (2) is connected to the second outlet (3). When the sealing element moves down to the lower limit, the inlet (2) is connected to the first outlet (1).

2. The side-inlet, side-outlet water distribution valve core as described in claim 1, characterized in that, The sealing element includes a cylindrical piston (6), the outer diameter of which is smaller than the inner diameter of the valve body. The piston (6) is provided with a first sealing ring (7), a second sealing ring (8) and a third sealing ring (9) from top to bottom. The outer diameters of the first sealing ring (7), the second sealing ring (8) and the third sealing ring (9) match the inner diameter of the valve body. When the first sealing ring (7) is at the upper limit position, the second sealing ring (8) is located between the inlet (2) and the first outlet (1), and the third sealing ring (9) is located below the second outlet (3). When the third sealing ring (9) is at the lower limit position, the second sealing ring (8) is located between the inlet (2) and the second outlet (3), and the first sealing ring (7) is located above the first outlet (1).

3. The side-inlet, side-outlet water distribution valve core as described in claim 1, characterized in that, The valve housing is provided with a partition (10) inside, which divides the internal cavity of the valve housing into an upper cavity (11) and a lower cavity (12). The valve stem (4) is slidably connected to the partition (10). The switch assembly (5) is installed in the upper cavity (11), and the seal is installed in the lower cavity (12).

4. A side-inlet, side-outlet water distribution valve core as described in claim 3, characterized in that, The bottom of the valve housing is closed, and the seal has a first air passage (13) that runs through it along the axial direction. The valve stem (4) has a second air passage (14) that runs through it along the axial direction and communicates with the first air passage (13). The side wall of the valve stem (4) has a first vent hole (15). The upper cavity (11) and the second air passage (14) are connected through the first vent hole (15). The partition plate (10) has a second vent hole (16). The upper cavity (11) and the lower cavity (12) are connected through the second vent hole (16).

5. A side-inlet, side-outlet water distribution valve core as described in claim 1, characterized in that, The valve housing consists of an upper valve housing (17), a lower valve housing (18), and a valve seat (19) from top to bottom. The lower valve housing (18) is detachably connected to the upper valve housing (17) and the valve seat (19).

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