Improved pressing type shunt valve element

Abstract

The utility model provides an improved pressing type shunt valve element which comprises a hollow valve shell, a water inlet and a first water outlet are formed in the side wall of the valve shell, a second water outlet is formed in the bottom of the valve shell, and the water inlet is located between the first water outlet and the second water outlet. A valve rod and a sealing assembly are slidably mounted in the valve shell. The sealing assembly comprises a sliding rod, and an upper sealing piece and a lower sealing piece are arranged at the top end and the bottom end of the sliding rod correspondingly. A switch assembly is installed at the top of the valve shell and used for driving the valve rod to drive the sealing assembly to move. When the sealing assembly moves upwards to an upper limit, the water inlet is communicated with the second water outlet; and when the sealing assembly moves downwards to the lower limit, the water inlet is communicated with the first water outlet. The upper sealing piece and the lower sealing piece are arranged in the valve shell, the sealing assembly is driven by the switch assembly to move up and down, the upper sealing piece blocks the first water outlet or the lower sealing piece blocks the second water outlet, the displacement stroke of the sealing assembly is reduced, and rapid switching of water outlet channels is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field especially relates to an improved press type water distribution valve core. BACKGROUND

[0002] The valve core is the core component of the faucet, mainly relies on the movement of the valve stem to realize the basic function of direction control, pressure control or flow control. The valve core on the market can be divided into three kinds according to the function: the first kind is the on-off valve core, used to realize the opening and closing of the water supply pipeline, the second kind is the water mixing valve core, used to control the opening and closing of the cold water and hot water inlet waterway, adjust the water temperature, and some water mixing valve cores can also adjust the water quantity, the third kind is the water distribution valve core, which can control the water flow direction and distribute the water outlet channel, the water distribution valve core is usually divided into two waterway distribution (shower and faucet) and three waterway distribution (shower, top spray and faucet) according to different spray systems.

[0003] The water distribution valve core is an essential accessory in the bathroom industry, which has been used in various products to distribute water. The existing water distribution valve core is mostly press type control, which pushes the valve stem to move by pressing the switch assembly, so as to change the position of the sealing plug inside the valve core and realize the switching of the water outlet channel. However, the existing press type water distribution valve core needs the sealing plug and the switch assembly to move a long distance to realize the switching of the water outlet channel, which makes the response speed of the water distribution valve core slow. UTILITY MODEL CONTENTS

[0004] The utility model provides an improved press type water distribution valve core, which solves the problem of slow response speed of the water distribution valve core in the prior art due to the long moving stroke of the sealing plug and the switch assembly.

[0005] The technical scheme of the utility model is as follows:

[0006] The utility model provides an improved press type water distribution valve core, which includes a hollow valve shell, a water inlet and a first water outlet are arranged on the side wall of the valve shell, a second water outlet is arranged on the bottom of the valve shell, and the water inlet is located between the first water outlet and the second water outlet, a valve stem and a sealing assembly are slidably installed in the valve shell, the sealing assembly includes a slide rod, upper and lower sealing members are arranged at the top end and the bottom end of the slide rod respectively, 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 assembly, when the sealing assembly moves up to the upper limit position, the upper sealing member blocks the first water outlet, and the water inlet is in communication with the second water outlet, when the sealing assembly moves down to the lower limit position, the lower sealing member blocks the second water outlet, and the water inlet is in communication with the first water outlet.

[0007] The utility model discloses a valve shell is provided with the first water outlet and the second water outlet, and the sealing assembly is arranged in the valve shell, and the sealing assembly is provided with the upper sealing piece and the lower sealing piece, and the upper sealing piece and the lower sealing piece are arranged in the valve shell.

[0008] Specifically, the outer side surface of the upper sealing piece is a slope surface, and the outer diameter of the upper sealing piece gradually increases from top to bottom; a snap ring is arranged below the first water outlet, and the inner diameter of the snap ring is greater than the outer diameter of the top end of the upper sealing piece and less than the outer diameter of the bottom end of the upper sealing piece; the opening and closing of the first water outlet are realized by cooperation between the outer side taper surface of the upper sealing piece and the snap ring, and the sealing performance is good and the opening and closing switching is sensitive.

[0009] Specifically, the outer side surface of the lower sealing piece is a slope surface, and the outer diameter of the lower sealing piece gradually decreases from top to bottom; the bottom of the valve shell is connected with a hollow valve seat, and the inner diameter of the valve seat is greater than the outer diameter of the bottom end of the lower sealing piece and less than the outer diameter of the top end of the lower sealing piece; the opening and closing of the second water outlet are realized by cooperation between the outer side taper surface of the lower sealing piece and the top surface of the valve seat, and the sealing performance is good and the opening and closing switching is sensitive.

[0010] Specifically, the middle part of the valve rod is provided with a circular truncated cone flow guide, and the outer diameter of the flow guide gradually increases from top to bottom; the top end of the flow guide is provided with a guide ring, the outer diameter of the guide ring is matched with the inner diameter of the valve shell, and the outer edge of the guide ring is provided with a plurality of notches in the circumferential direction; the bottom end of the flow guide is provided with a plurality of guide blocks in the circumferential direction, and the outer side wall of the guide block is in sliding cooperation with the inner wall of the valve shell; the circular truncated cone flow guide is arranged in the middle part of the flow guide, so that the water flow entering the inner cavity of the valve shell from the water inlet flows towards the guide ring under the guidance of the flow guide, thereby impacting the guide ring and providing an upward lifting force for the guide ring; after the reset of the switch assembly, the water flow can provide an upward pushing force for the sealing assembly, thereby assisting the upward reset of the sealing assembly to close the first water outlet.

[0011] Preferably, the bottom end of the valve rod is fixedly connected with the top end of the slide rod, and when the switch assembly is reset, the valve rod pulls the sealing assembly to displace upward, and at the same time, the water flow entering from the water inlet pushes the sealing assembly to displace upward, so that the sealing assembly is displaced upward under the pulling force of the valve rod and the pushing force of the water flow, thereby reducing the load of the reset of the switch assembly.

[0012] Optionally, the bottom end of the valve rod is in abutment with the top end of the slide rod, and when the switch assembly is reset, the valve rod is reset upward by itself; the water flow entering from the water inlet pushes the sealing assembly to displace upward to realize the reset, and the reset of the sealing assembly by the valve rod can be avoided, thereby further reducing the load of the reset of the switch assembly.

[0013] Specifically, the inside of the valve shell is provided with a limiting ring, the inner diameter of the limiting ring is matched with the outer diameter of the valve rod, and the limiting ring is located above the first water outlet; by arranging the limiting ring inside the lower valve shell, the up-and-down movement of the valve rod can be guided.

[0014] Further, the top surface of the limiting ring is connected with a sealing ring, the bottom surface of the sealing ring is provided with a sealing groove, a sealing ring is embedded in the sealing groove, the sealing ring is sleeved on the outside of the valve rod, and the bottom surface of the sealing ring abuts against the top surface of the limiting ring; by arranging the sealing ring and embedding the sealing ring in the sealing groove of the sealing ring, the up-and-down movement of the valve rod can be sealed, so that the medium in the lower valve shell is prevented from penetrating into the inside of the upper valve shell; meanwhile, the sealing ring can further guide the up-and-down movement of the valve rod.

[0015] Specifically, the valve shell comprises a detachably connected upper valve shell and lower valve shell, the switch assembly is movably installed on the top of the upper valve shell, the water inlet and the first water outlet are arranged on the side wall of the lower valve shell, the sealing assembly moves up and down in the inside of the lower valve shell, and the hollow cavities of the upper valve shell and the lower valve shell are isolated from each other; by isolating the hollow cavities of the upper valve shell and the lower valve shell, the medium is prevented from entering the upper valve shell and causing the parts in the inside of the upper valve shell to rust and be damaged; and the detachable connection of the upper valve shell and the lower valve shell facilitates the assembly and disassembly of the valve core and subsequent maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.

[0017] Figure 1 It is an internal structure schematic view of the improved press type water distribution valve core of the present application.

[0018] Figure 2 It is an external structure schematic view of the improved press type water distribution valve core of the present application.

[0019] Figure 3 It is a structure schematic view of the sealing assembly in the embodiment of the present application.

[0020] Figure 4 It is an internal partial structure schematic view of the water distribution valve core when the switch assembly is in a pressed state in the embodiment of the present application.

[0021] Figure 5 It is an internal partial structure schematic view of the water distribution valve core when the switch assembly is in an unpressed state in the embodiment of the present application.

[0022] Fig. 1, water inlet; 2, first water outlet; 3, second water outlet; 4, valve rod; 5, sliding rod; 6, upper sealing element; 7, lower sealing element; 8, switch assembly; 9, snap ring; 10, valve seat; 11, flow guide; 12, guide ring; 13, notch; 14, guide block; 15, limiting ring; 16, sealing ring; 17, sealing ring; 18, upper valve shell; 19, lower valve shell. DETAILED DESCRIPTION

[0023] The technical scheme of the utility model will be described clearly and completely below in combination with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0024] Reference Figure 1 The utility model provides a kind of improved pressing type water distribution valve core, including hollow valve shell in, the side wall of the valve shell is equipped with water inlet 1 and first water outlet 2, the bottom of the valve shell is equipped with second water outlet 3, water inlet 1 is located between first water outlet 2 and second water outlet 3;Valve rod 4 and sealing assembly are slidably installed in the valve shell;The sealing assembly includes sliding rod 5, and the top end and bottom end of the sliding rod 5 are equipped with upper sealing element 6 and lower sealing element 7 respectively;The top of the valve shell is equipped with switch assembly 8, and the switch assembly 8 is used to drive valve rod 4 to move sealing assembly;When sealing assembly moves up to upper limit position, the upper sealing element 6 blocks first water outlet 2, and water inlet 1 is communicated with second water outlet 3;When sealing assembly moves down to lower limit position, the lower sealing element 7 blocks second water outlet 3, and water inlet 1 is communicated with first water outlet 2.

[0025] The utility model embodiment is by being equipped with upper sealing element 6 and lower sealing element 7 in the valve shell, by switch assembly 8 drive sealing assembly moves up and down, make upper sealing element 6 block first water outlet 2 or make lower sealing element block second water outlet 3, reduce the displacement stroke of sealing assembly, realize the quick switching of water outlet passage.

[0026] Specifically, the outer side surface of the upper sealing element 6 is a slope, and the outer diameter of the upper sealing element 6 gradually increases from top to bottom;The lower side of the first water outlet 2 is equipped with a snap ring 9, and the inner diameter of the snap ring 9 is greater than the top outer diameter of the upper sealing element 6 and less than the bottom outer diameter of the upper sealing element 6;The opening and closing of the first water outlet 2 is realized by the cooperation of the outer side taper surface of the upper sealing element 6 and the snap ring 9, which has good sealing performance and sensitive switching.

[0027] Specifically, the outer side of the lower seal 7 is a slope, and the outer diameter of the lower seal 7 gradually decreases from top to bottom; the bottom of the valve shell is connected with an internally hollow valve seat 10, the inner diameter of the valve seat 10 is greater than the bottom end outer diameter of the lower seal 7 and less than the top end outer diameter of the lower seal 7; the opening and closing of the second water outlet 3 is realized by the cooperation of the outer side taper surface of the lower seal 7 and the top surface of the valve seat 10, which is good in sealing and sensitive in opening and closing switching.

[0028] Specifically, the middle part of the valve rod 4 is provided with a circular truncated cone shaped flow guide 11, the outer diameter of the flow guide 11 gradually increases from top to bottom; the top end of the flow guide 11 is provided with a guide ring 12, the outer diameter of the guide ring 12 matches the inner diameter of the valve shell, and the outer edge of the guide ring 12 is provided with a plurality of notches 13 along the circumference for water flow; the bottom end of the flow guide 11 is provided with a plurality of guide blocks 14 along the circumference (the gap between adjacent guide blocks 14 and the inner wall of the valve shell is used for water flow), and the outer side wall of the guide block 14 is in sliding cooperation with the inner wall of the valve shell; by setting the circular truncated cone shaped flow guide 11 in the middle part of the flow guide 11, the water flow entering the inner cavity of the valve shell from the water inlet 1 flows towards the guide ring 12 under the guidance of the flow guide 11, thereby impacting the guide ring 12 and providing an upward lifting force for the guide ring 12; after the switch assembly 8 is reset, the water flow can provide an upward pushing force for the sealing assembly, thereby assisting the sealing assembly to reset upward to close the first water outlet 2.

[0029] Preferably, the bottom end of the valve rod 4 is fixedly connected with the top end of the slide rod 5, when the switch assembly 8 is reset, the valve rod 4 will pull the sealing assembly to displace upward, and at the same time the water flow entering from the water inlet 1 will push the sealing assembly to displace upward, so that the sealing assembly is displaced upward under the pulling force of the valve rod 4 and the pushing force of the water flow, thereby the load of resetting the switch assembly 8 can be reduced.

[0030] Optionally, the bottom end of the valve rod 4 abuts against the top end of the slide rod 5, when the switch assembly 8 is reset, the valve rod 4 resets upward by itself; the water flow entering from the water inlet 1 pushes the sealing assembly to displace upward to reset, which can not need to rely on the valve rod 4 to pull the sealing assembly to reset, thereby further reducing the load of resetting the switch assembly 8.

[0031] Specifically, the inside of the valve shell is provided with a limiting ring 15, the inner diameter of the limiting ring 15 matches the outer diameter of the valve rod 4, and the limiting ring 15 is located above the first water outlet 2; by setting the limiting ring 15 inside the lower valve shell 19, the upward and downward movement of the valve rod 4 can be guided to a certain extent.

[0032] Further, the top surface of the limiting ring 15 is connected with a sealing ring 16, the bottom surface of the sealing ring 16 is provided with a sealing groove, the sealing groove is embedded with a sealing ring 17, the sealing ring 17 is sleeved on the outside of the valve rod 4, and the bottom surface of the sealing ring 17 is in abutment with the top surface of the limiting ring 15; by arranging the sealing ring 16 and embedding the sealing ring 17 in the sealing groove of the sealing ring 16, the up-and-down movement of the valve rod 4 can be sealed, so that the medium in the lower valve shell 19 cannot enter the inside of the upper valve shell 18; meanwhile, the sealing ring 16 can further guide the up-and-down movement of the valve rod 4.

[0033] Specifically, the valve shell comprises a detachably connected upper valve shell 18 and lower valve shell 19, the switch assembly 8 is movably installed on the top of the upper valve shell 18; the water inlet 1 and the first water outlet 2 are arranged on the side wall of the lower valve shell 19, the sealing assembly moves up and down in the inside of the lower valve shell 19, and the hollow cavity of the upper valve shell 18 is isolated from the hollow cavity of the lower valve shell 19; by isolating the hollow cavities of the upper valve shell 18 and the lower valve shell 19, the medium cannot enter the inside of the upper valve shell 18, so that the parts in the inside of the upper valve shell 18 are prevented from rusting and damaging; and the detachable connection of the upper valve shell 18 and the lower valve shell 19 facilitates the assembly and disassembly of the valve core and the subsequent maintenance.

[0034] The switch assembly 8 in the embodiment is a prior art, and the switch structure in the public number CN109630746A or CN219493225U can be directly adopted. The operation method of the water distribution valve core in the embodiment is as follows:

[0035] By pressing the switch assembly 8 once downward, the valve rod 4 can be driven to move downward to the lower limit position and be locked, the valve rod 4 pushes the sealing assembly to move downward to the outside conical surface of the lower sealing element 7 and the top surface of the valve seat 10, the communication between the water inlet 1 and the second water outlet 3 is blocked by the lower sealing element 7, at this time, the outside conical surface of the upper sealing element 6 is separated from the bottom inner edge of the snap ring 9, and the water inlet 1 is communicated with the first water outlet 2, as shown in FIG. 6. Figure 4 By pressing the switch assembly 8 once downward again, the valve rod 4 can be unlocked, the valve rod 4 moves upward to the upper limit position under the action of the return spring, the valve rod 4 pulls the sealing assembly to move upward (at the same time, the water flow entering from the water inlet 1 will impact the guide ring 12 upward under the action of the guide piece, and an upward lifting force is applied to the sealing assembly), until the outside conical surface of the upper sealing element 6 is in abutment with the bottom inner edge of the snap ring 9, the communication between the water inlet 1 and the first water outlet 2 is blocked by the upper sealing element 6, at this time, the outside conical surface of the lower sealing element 7 is separated from the top inner edge of the valve seat 10, and the water inlet 1 is communicated with the second water outlet 3, as shown in FIG. 7. Figure 5 Figure 4 , Figure 5 The arrow in the middle indicates the direction of water flow.

[0036] ​The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An improved push-to- yield valve trim, comprising: The utility model provides a valve, including the hollow inside valve shell, the side wall of valve shell is equipped with water inlet (1) and first water outlet (2), the bottom of valve shell is equipped with second water outlet (3), water inlet (1) is located between first water outlet (2) and second water outlet (3), the inside sliding installation of valve shell has valve stem (4) and sealing assembly, sealing assembly includes slide bar (5), the top end and bottom end of slide bar (5) are equipped with upper seal (6) and lower seal (7) respectively, the top of valve shell is installed with switch assembly (8), switch assembly (8) is used to drive valve stem (4) and moves sealing assembly, when sealing assembly moves up to upper limit, upper seal (6) blocks first water outlet (2), water inlet (1) is communicated with second water outlet (3), when sealing assembly moves down to lower limit, lower seal (7) blocks second water outlet (3), water inlet (1) is communicated with first water outlet (2).

2. An improved push-type water shut-off valve core as defined in claim 1, wherein, The outer side of the upper seal (6) is inclined, and the outer diameter of the upper seal (6) gradually increases from top to bottom; the lower side of the first water outlet (2) is provided with a snap ring (9), the inner diameter of the snap ring (9) is greater than the top outer diameter of the upper seal (6) and less than the bottom outer diameter of the upper seal (6).

3. An improved push-type water shut-off valve core as defined in claim 1 wherein, The outer side of the lower seal (7) is inclined, and the outer diameter of the lower seal (7) gradually decreases from top to bottom; the bottom of the valve shell is connected with a hollow valve seat (10), the inner diameter of the valve seat (10) is greater than the bottom outer diameter of the lower seal (7) and less than the top outer diameter of the lower seal (7).

4. An improved push-type water shut-off valve core as defined in claim 1 wherein, The middle part of the valve stem (4) is provided with a circular truncated cone flow guide (11), the outer diameter of the flow guide (11) gradually increases from top to bottom; the top end of the flow guide (11) is provided with a guide ring (12), the outer diameter of the guide ring (12) matches the inner diameter of the valve shell, and the outer edge of the guide ring (12) is provided with a plurality of notches (13) in the circumferential direction; the bottom end of the flow guide (11) is provided with a plurality of guide blocks (14) in the circumferential direction, and the outer side wall of the guide block (14) is in sliding fit with the inner wall of the valve shell.

5. An improved push-type water shut-off valve core as claimed in claim 1 or 4 wherein, The bottom end of the valve stem (4) is fixedly connected with the top end of the slide bar (5).

6. An improved push-type water shut-off valve core as defined in claim 4 wherein, The bottom end of the valve stem (4) abuts against the top end of the slide bar (5).

7. An improved push-type water shut-off valve core as defined in claim 1 wherein, The inside of the valve shell is provided with a limiting ring (15), the inner diameter of the limiting ring (15) matches the outer diameter of the valve stem (4), and the limiting ring (15) is located above the first water outlet (2).

8. An improved push-type water shut-off valve core as defined in claim 7 wherein, The top surface of the limiting ring (15) is connected with a sealing ring (16), the bottom surface of the sealing ring (16) is provided with a sealing groove, the sealing groove is embedded with a sealing ring (17), the sealing ring (17) is sleeved outside the valve stem (4), and the bottom surface of the sealing ring (17) abuts against the top surface of the limiting ring (15).

9. An improved push-type water shut-off valve core as defined in claim 1 wherein, The valve housing comprises detachably connected upper valve housing (18) and lower valve housing (19), the switch assembly (8) is movably installed on the top of the upper valve housing (18); the water inlet (1) and the first water outlet (2) are arranged on the side wall of the lower valve housing (19), the sealing assembly moves up and down in the lower valve housing (19), and the hollow cavity of the upper valve housing (18) is isolated from the hollow cavity of the lower valve housing (19).

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