A two-way valve core

Abstract

The utility model provides a kind of double-path valve core, including shell, the shell rear end is equipped with valve cavity, the shell rear end is sequentially equipped with static sheet, dynamic sheet and the valve stem of control dynamic sheet rotation, the one end of the valve stem is from shell front end and goes out, the static sheet is equipped with two groups of first inlet and outlet hole of 180 degrees interval and two groups of second inlet and outlet hole of 180 degrees interval, and adjacent first inlet and outlet hole and second inlet and outlet hole are arranged with 90 degrees interval;The dynamic sheet is equipped with third inlet and outlet hole of 180 degrees interval along circumferential direction, the one side of the dynamic sheet facing static sheet is equipped with the first water passage between two third inlet and outlet holes, the one side of the dynamic sheet away from static sheet is equipped with the second water passage being communicated with two third inlet and outlet holes.The utility model has the advantages of realizing double-path independent water supply, suitable for water control and pure water control.

Description

Technical Field

[0001] This utility model relates to the field of bathroom accessories, specifically to a dual-way valve core. Background Technology

[0002] There are many types of faucets available, and existing kitchen faucets often come with a water purification function. However, the control of the purified water is usually a separate switch, which is not integrated and is relatively cumbersome to control. Valve cores that combine purified water control with traditional inlet and outlet water control share the same outlet when controlling the purified water output and the traditional inlet and outlet water output, which is not hygienic. Therefore, it is necessary to design a valve core that can control purified water and traditional inlet and outlet water simultaneously, and output them independently, so as to ensure the safety and hygiene of purified water output. Utility Model Content

[0003] Based on the above problems, the purpose of this utility model is to provide a dual-channel valve core that can realize dual-channel independent water supply and is suitable for domestic water control and pure water control.

[0004] To address the above problems, the following technical solution is provided: A dual-way valve core includes a housing, a valve chamber at the rear end of the housing, and a stationary plate, a moving plate, and a valve stem for controlling the rotation of the moving plate sequentially arranged from the rear end of the housing towards the front end. The end of the valve stem facing away from the moving plate extends out from the front end of the housing. The stationary plate has two sets of first inlet / outlet holes spaced 180 degrees apart and two sets of second inlet / outlet holes spaced 180 degrees apart, with adjacent first and second inlet / outlet holes spaced 90 degrees apart. The moving plate has a third inlet / outlet hole spaced 180 degrees apart along the circumferential direction. The moving plate has a first water passage groove between the two third inlet / outlet holes on the side facing the stationary plate, and a second water passage groove connecting the two third inlet / outlet holes on the side facing away from the stationary plate; when the valve stem is in the middle position, the two first inlet / outlet holes and the two second inlet / outlet holes are in a cut-off state; when the valve stem rotates in the first direction, the two first inlet / outlet holes are connected to each other, and the two second inlet / outlet holes are in a cut-off state; when the valve stem rotates in the second direction, the two second inlet / outlet holes are connected to each other through the two third inlet / outlet holes and the second water passage groove, and the two first inlet / outlet holes are in a cut-off state.

[0005] The present invention is further configured such that the valve stem includes a rod body and a connecting seat for driving the moving plate to rotate, and the second water passage groove is opened on the side of the moving plate facing away from the stationary plate and / or the side of the connecting seat facing the moving plate.

[0006] The present invention is further configured such that the connecting seat is provided with a first sealing groove, the first sealing groove is provided with a first sealing ring opened along the periphery of the third inlet / outlet hole and the second water passage groove, and the first sealing ring abuts against the moving piece for sealing.

[0007] The present invention is further configured such that the radial distance between the two first inlet and outlet holes on the stationary plate is less than the radial distance between the two second inlet and outlet holes on the stationary plate; and the radial opening length of the first water passage groove on the moving plate is less than the radial distance between the two third inlet and outlet holes on the moving plate.

[0008] The present invention is further configured such that the static plate is fixedly connected to the rear end of the housing by a snap-fit ​​connection or is fixed by a tail cover located at the rear end of the housing and snap-fitted to the housing; when the rear end of the housing is provided with a tail cover, the tail cover is provided with water distribution holes corresponding to each of the first inlet and outlet holes and the second inlet and outlet holes.

[0009] The present invention is further configured such that, when the rear end of the housing is provided with a tail cover, the side of the tail cover facing the stationary plate is provided with a second sealing groove surrounding one end of the water distribution hole, and a second sealing ring is provided in the second sealing groove, and the stationary plate abuts against the second sealing ring for sealing; at the same time, the side of the tail cover facing away from the stationary plate is provided with a third sealing groove surrounding the other end of the water distribution hole, and a third sealing ring is provided in the third sealing groove.

[0010] The present invention is further configured such that a protruding positioning post is provided on the side of the tail cover facing away from the stationary plate.

[0011] The present invention is further configured such that the front end of the valve cavity of the housing is provided with a fan-shaped groove arranged in the circumferential direction, and the fan-shaped groove is provided with positioning grooves spaced apart in the circumferential direction; the valve stem is provided with a positioning block that slides in the fan-shaped groove when the valve stem rotates, and the positioning block is provided with a positioning ball adapted to the positioning groove.

[0012] The present invention is further configured such that the first inlet / outlet hole and the second inlet / outlet hole are provided with correction holes at the openings of the holes at the ends of the moving plate opposite to the moving plate, and the correction holes are arranged in an array along the circumferential direction of the stationary plate.

[0013] The present invention is further configured such that the side of the second inlet / outlet facing the moving plate has a fan-shaped water passage groove opened along the circumferential direction of the stationary plate at its opening.

[0014] The beneficial effects of this utility model are: 1. The stationary plate is equipped with two first inlet / outlet holes and two second inlet / outlet holes. When the valve stem is in the neutral position, the two first inlet / outlet holes and the two second inlet / outlet holes are cut off from each other. When the valve stem rotates in the first direction, it drives the moving plate to rotate together, so that it is connected to the two first inlet / outlet holes. At this time, the two second inlet / outlet holes remain cut off from each other. When the valve stem rotates in the second direction, it drives the moving plate to rotate together in the other direction, so that the two third inlet / outlet holes are connected to the two second inlet / outlet holes respectively. At this time, the two second inlet / outlet holes are connected through the two third inlet / outlet holes and the second water passage. At this time, the two first inlet / outlet holes remain cut off from each other. This realizes independent control and independent output of pure water and independent control and independent output of traditional inlet / outlet water. The two water circuits do not interfere with each other, ensuring the hygiene of pure water output. 2. The outer edge of the connecting seat is provided with connecting claws, and the moving piece is provided with connecting grooves that are adapted to the connecting claws; since the second water passage groove is located on both sides of the moving piece, the depth of the second water passage groove will be limited due to the thickness of the moving piece, which will limit its water flow cross section. Therefore, it can be opened on the side of the connecting seat facing the moving piece as needed to increase the water flow, or it can be opened only on the side of the connecting seat facing the moving piece. 3. The stationary plate can be used directly as a tail cap or an additional tail cap can be installed as needed; 4. Since the first and second inlet / outlet holes are offset from the center of the stationary plate, the first and second inlet / outlet holes can be better aligned with the water distribution holes by the correction hole, creating a smoother water flow environment; the fan-shaped water passage groove can increase the water passage cross section between the second and third inlet / outlet holes. Attached Figure Description

[0015] Figure 1 This is a first-view three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a second-view three-dimensional structural diagram of the present invention.

[0017] Figure 3 This is a first-person perspective three-dimensional structural diagram of the present invention in the form of an explosion.

[0018] Figure 4 This is a two-dimensional structural diagram of the explosion from a second perspective of the present invention.

[0019] Figure 5 This is a schematic diagram of the static sheet rear view structure of this utility model.

[0020] Figure 6 This is a schematic diagram of the rear view structure of the moving piece of this utility model.

[0021] Figure 7 This is a schematic diagram showing the relative position of the moving plate and the stationary plate when the moving plate is in the neutral position.

[0022] Figure 8 This is a schematic diagram showing the relative position of the moving plate and the stationary plate when the moving plate rotates clockwise to the first position according to this utility model.

[0023] Figure 9 This is a schematic diagram showing the relative position of the moving plate and the stationary plate when the moving plate rotates counterclockwise to the second position according to this utility model.

[0024] Figure 10 This is a three-dimensional structural diagram of the shell of this utility model.

[0025] Figure 11 This utility model Figure 3 Enlarged structural diagram of the stationary and moving plates.

[0026] Figure 12 This utility model Figure 4 Enlarged structural diagram of the stationary and moving plates.

[0027] The labels in the diagram have the following meanings: 10-Shell; 11-Valve cavity; 12-Sector groove; 121-Positioning groove; 20-Stationary plate; 21-First inlet / outlet hole; 22-Second inlet / outlet hole; 23-Correction hole; 24-Sector water passage groove; 30-Moving plate; 31-Third inlet / outlet hole; 32-First water passage groove; 33-Second water passage groove; 34-Connecting groove; 40-Valve stem; 42-Connecting seat; 421-Connecting claw; 422-First sealing groove; 43-First sealing ring; 44-Positioning block; 45-Positioning ball; 50-Tail cap; 51-Water distribution hole; 52-Second sealing groove; 53-Second sealing ring; 54-Third sealing groove; 55-Third sealing ring; 56-Positioning pin. Detailed Implementation

[0028] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0029] refer to Figures 1 to 12 ,like Figures 1 to 12 A dual-way valve core is shown, comprising a housing 10, a valve chamber 11 at the rear end of the housing 10, and a stationary plate 20, a moving plate 30, and a valve stem 40 for controlling the rotation of the moving plate 30 sequentially arranged from the rear end of the housing 10 towards the front end. The end of the valve stem 40 facing away from the moving plate 30 protrudes from the front end of the housing 10. The stationary plate 20 has two sets of first inlet / outlet holes 21 spaced 180 degrees apart and two sets of second inlet / outlet holes 22 spaced 180 degrees apart. Adjacent first inlet / outlet holes 21 and second inlet / outlet holes 22 are connected in series. The outlet holes 22 are arranged at 90-degree intervals; the moving plate 30 is provided with third inlet / outlet holes 31 opened at 180-degree intervals along the circumferential direction; the side of the moving plate 30 facing the stationary plate 20 is provided with a first water passage groove 32 located between the two third inlet / outlet holes 31; the side of the moving plate 30 facing away from the stationary plate 20 is provided with a second water passage groove 33 connecting the two third inlet / outlet holes 31; when the valve stem 40 is in the neutral position, the two first inlet / outlet holes 21 and the two second inlet / outlet holes 22 are in a closed state (refer to...). Figure 7 When the valve stem 40 rotates in the first direction, the two first inlet / outlet holes 21 are connected to each other through the first water passage 32, and the two second inlet / outlet holes 22 are in a cut-off state (see reference). Figure 8 When the valve stem 40 rotates in the second direction, the two second inlet / outlet holes 22 are connected to each other through the two third inlet / outlet holes 31 and the second water passage 33, and the two first inlet / outlet holes 21 are in a cut-off state (see reference). Figure 9 ).

[0030] In the above structure, the stationary plate 20 is provided with two first inlet / outlet holes 21 and two second inlet / outlet holes 22. When the valve stem 40 is in the neutral position (refer to...), Figure 7 The two first inlet / outlet holes 21 and the two second inlet / outlet holes 22 are all cut off from each other; when the valve stem 40 rotates in the first direction (refer to...) Figure 8 The valve stem 40 rotates together with the moving plate 30, causing the first water passage 32 to rotate to be connected with the two first inlet and outlet holes 21. At this time, the two second inlet and outlet holes 22 remain in a closed state. When the valve stem 40 rotates in the second direction (refer to...), Figure 9 The moving plate 30 rotates in the other direction, causing the two third inlet / outlet holes 31 to connect with the two second inlet / outlet holes 22 respectively. At this time, the two second inlet / outlet holes 22 are connected through the two third inlet / outlet holes 31 and the second water passage 33, while the two first inlet / outlet holes 21 remain in a closed state. This achieves independent control and output of pure water and independent control and output of traditional inlet / outlet water, with the two water paths not interfering with each other, ensuring the hygiene of the pure water output.

[0031] In this embodiment, the valve stem 40 includes a stem body 41 and a connecting seat 42 for driving the moving plate 30 to rotate. The second water passage 33 is opened on the side of the moving plate 30 facing away from the stationary plate 20 and / or the side of the connecting seat 42 facing the moving plate 30.

[0032] In the above structure, the outer edge of the connecting seat 42 is provided with a connecting claw 421, and the moving piece 30 is provided with a connecting groove 34 that is adapted to the connecting claw 421. Since the second water passage groove 33 and the first water passage groove 32 are located on the front and back sides of the moving piece 30 respectively, the depth of the second water passage groove 33 will be limited due to the thickness of the moving piece 30, which will limit its water flow cross section. Therefore, it is possible to open the connecting seat 42 on the side facing the moving piece 30 as needed to increase the water flow, or it can be opened only on the side of the connecting seat 42 facing the moving piece 30.

[0033] In this embodiment, the connecting seat 42 is provided with a first sealing groove 422, and the first sealing groove 422 is provided with a first sealing ring 43 opened around the third inlet / outlet hole 31 and the second water passage groove 33. The first sealing ring 43 abuts against the moving piece 30 for sealing.

[0034] In the above structure, the first sealing ring 43 can ensure the sealing between the connecting seat 42 and the moving piece 30, and prevent water leakage.

[0035] In this embodiment, the radial distance L1 between the two first inlet / outlet holes 21 on the stationary plate 20 is less than the radial distance L2 between the two second inlet / outlet holes 22 on the stationary plate 20; the radial opening length L3 of the first water passage trough 32 on the moving plate 30 is less than the radial distance L4 between the two third inlet / outlet holes 31 on the moving plate 30.

[0036] In the above structure, the water channel formed by the two first inlet / outlet holes 21 and the first water passage 32 does not interfere with the two second inlet / outlet holes 22 and the third inlet / outlet hole 31 on the outside when the moving plate 30 rotates.

[0037] In this embodiment, the stationary plate 20 is fixed by snap-fit ​​connection to the rear end of the housing 10 or by the tail cover 50 located at the rear end of the housing 10 and snap-fit ​​connection to the housing 10; when the rear end of the housing 10 is provided with the tail cover 50, the tail cover 50 is provided with water distribution holes 51 corresponding to each of the first inlet / outlet holes 21 and the second inlet / outlet holes 22.

[0038] In the above structure, the stationary plate 20 can be used directly as the tail cover 50 or an additional tail cover 50 can be provided as needed.

[0039] In this embodiment, when the rear end of the housing 10 is provided with a tail cover 50, the side of the tail cover 50 facing the stationary plate 20 is provided with a second sealing groove 52 surrounding one end of the water distribution hole 51, and a second sealing ring 53 is provided in the second sealing groove 52, and the stationary plate 20 abuts against the second sealing ring 53 to seal; at the same time, the side of the tail cover 50 facing away from the stationary plate 20 is provided with a third sealing groove 54 surrounding the other end of the water distribution hole 51, and a third sealing ring 55 is provided in the third sealing groove 54.

[0040] In the above structure, the second sealing ring 53 can prevent water from flowing between the tail cap 50 and the stationary plate 20; the third sealing ring 55 can ensure that when the dual-way valve core is installed on the valve core mounting position of the faucet, it can be matched and sealed with each water channel at the bottom of the valve core mounting position.

[0041] In this embodiment, the tail cover 50 has a protruding positioning post 56 on the side facing away from the stationary plate 20.

[0042] In the above structure, the positioning pin 56 is used to fit with the positioning hole at the bottom of the valve core mounting position to determine the circumferential position of the dual-way valve core.

[0043] In this embodiment, the front end of the valve cavity 11 of the housing 10 is provided with a fan-shaped groove 12 arranged in the circumferential direction, and the fan-shaped groove 12 is provided with positioning grooves 121 spaced apart in the circumferential direction; the valve stem 40 is provided with a positioning block 44 that slides in the fan-shaped groove 12 when the valve stem 40 rotates, and the positioning block 44 is provided with positioning tumblers 45 that are adapted to the positioning grooves 121.

[0044] In the above structure, when the valve stem 40 rotates, the positioning block 44 moves within the sector groove 12, cooperating with the positioning ball 45 and the positioning groove 121 to achieve gear switching positioning and provide a tactile feedback.

[0045] In this embodiment, the first inlet / outlet hole 21 and the second inlet / outlet hole 22 are provided with correction holes 23 at the openings of the holes facing away from the moving plate 30, and each correction hole 23 is arranged in an array along the circumferential direction of the stationary plate 20.

[0046] In the above structure, since the first inlet / outlet hole 21 and the second inlet / outlet hole 22 are offset from the center of the stationary plate 20, the first inlet / outlet hole 21 and the second inlet / outlet hole 22 can be better aligned with the water distribution hole 51 by the correction hole 23, creating a smoother water flow environment.

[0047] In this embodiment, the side of the second inlet / outlet hole 22 facing the moving piece 30 has a fan-shaped water passage groove 24 opened along the circumferential direction of the stationary piece 20.

[0048] In the above structure, the fan-shaped water passage 24 can increase the water passage cross section between the second inlet / outlet hole 22 and the third inlet / outlet hole 31.

[0049] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model. These improvements and modifications assumed above should also be considered within the protection scope of the present utility model.

Claims

1. A dual-way valve core, comprising a housing, a valve chamber at the rear end of the housing, and a stationary plate, a moving plate, and a valve stem for controlling the rotation of the moving plate sequentially arranged from the rear end of the housing towards the front end, wherein the end of the valve stem facing away from the moving plate extends out from the front end of the housing, characterized in that: The stationary plate has two sets of first inlet / outlet holes spaced 180 degrees apart and two sets of second inlet / outlet holes spaced 180 degrees apart, with adjacent first and second inlet / outlet holes spaced 90 degrees apart. The moving plate has third inlet / outlet holes spaced 180 degrees apart in the circumferential direction. The side of the moving plate facing the stationary plate has a first water passage groove located between the two third inlet / outlet holes, and the side of the moving plate facing away from the stationary plate has a second water passage groove connecting the two third inlet / outlet holes. When the valve stem is in the neutral position, the two first inlet / outlet holes and the two second inlet / outlet holes are in a closed state. When the valve stem rotates in the first direction, the two first inlet / outlet holes are connected to each other, and the two second inlet / outlet holes are in a closed state. When the valve stem rotates in the second direction, the two second inlet / outlet holes are connected to each other through the two third inlet / outlet holes and the second water passage groove, and the two first inlet / outlet holes are in a closed state.

2. A dual-way valve core according to claim 1, characterized in that: The valve stem includes a rod body and a connecting seat for driving the moving plate to rotate. The second water passage groove is opened on the side of the moving plate facing away from the stationary plate and / or on the side of the connecting seat facing the moving plate.

3. A dual-way valve core according to claim 2, characterized in that: The connecting seat is provided with a first sealing groove, and the first sealing groove is provided with a first sealing ring opened along the periphery of the third inlet / outlet hole and the second water passage groove. The first sealing ring abuts against the moving piece for sealing.

4. A dual-way valve core according to claim 1, characterized in that: The radial distance between the two first inlet / outlet holes on the stationary plate is less than the radial distance between the two second inlet / outlet holes on the stationary plate; the radial opening length of the first water passage groove on the moving plate is less than the radial distance between the two third inlet / outlet holes on the moving plate.

5. A dual-way valve core according to claim 1, characterized in that: The stationary plate is fixed by a snap-fit ​​connection to the rear end of the housing or by a tail cover located at the rear end of the housing and snap-fitted to the housing; when the rear end of the housing is provided with a tail cover, the tail cover is provided with water distribution holes corresponding to each of the first inlet and outlet holes and the second inlet and outlet holes.

6. A dual-way valve core according to claim 5, characterized in that: When the rear end of the housing is provided with a tail cover, the side of the tail cover facing the stationary plate is provided with a second sealing groove around one end of the water distribution hole, and a second sealing ring is provided in the second sealing groove, and the stationary plate abuts against the second sealing ring to seal; at the same time, the side of the tail cover facing away from the stationary plate is provided with a third sealing groove around the other end of the water distribution hole, and a third sealing ring is provided in the third sealing groove.

7. A dual-way valve core according to claim 5 or 6, characterized in that: The tail cap has a protruding positioning post on the side facing away from the stationary plate.

8. A dual-way valve core according to claim 1, characterized in that: The front end of the valve chamber of the housing is provided with a fan-shaped groove arranged in the circumferential direction, and the fan-shaped groove is provided with positioning grooves arranged at intervals in the circumferential direction; the valve stem is provided with a positioning block that slides in the fan-shaped groove when the valve stem rotates, and the positioning block is provided with positioning tumblers that are adapted to the positioning grooves.

9. A dual-way valve core according to claim 1, characterized in that: The first and second inlet / outlet holes are provided with correction holes at the openings of the holes facing away from the moving plate, and the correction holes are arranged in an array along the circumferential direction of the stationary plate.

10. A dual-way valve core according to claim 1, characterized in that: The second inlet / outlet hole has a fan-shaped water passage groove at its opening on the side facing the moving plate, which is opened along the circumferential direction of the stationary plate.

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