Valve element

Abstract

The valve element comprises a shell, a valve rod, a valve rod support, a movable piece support, a movable piece and a static piece, the valve rod is sequentially provided with a swing section, a hinge section and a shifting section in the length direction of the valve rod, the swing section penetrates out of a valve rod hole in the front end of the shell, and the outer wall of the hinge section is a spherical surface and is hinged between the front end of an inner cavity of the shell and the valve rod support. The shifting section is matched with the moving plate bracket, so that the moving plate bracket slides towards the radial direction of the shell under the guidance of the valve rod bracket, and the moving plate bracket drives the moving plate to slide relative to the static plate; the side wall of the shell is provided with a first water opening communicated with an inner cavity of the shell. The static piece is provided with a second water opening or a second water opening and a third water opening, the second water opening controls connection and disconnection with the inner cavity of the shell through sliding of the movable piece, or one of the second water opening and the third water opening is selected to be communicated with the inner cavity of the shell through sliding control of the movable piece. The utility model has the advantages that the valve rod is based on swing control, and the on-off of a waterway is formed between the side surface and the lower end.

Description

Technical Field

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

[0002] After the hot and cold water from the shower faucet is mixed by the mixing valve core, the downstream flow is controlled by an independent switching valve. There are many types of switching valves, including single inlet and multiple outlet (controlled by valve stem rotation), side inlet and rear outlet / rear inlet and side outlet (controlled by valve stem rotation), and rear inlet and rear outlet (controlled by valve stem swing). Currently, most of the selected switching valves are rear inlet and rear outlet (controlled by valve stem swing) to achieve a piano-key-like switching function. Since the water inlet and outlet of the rear inlet and rear outlet type are both located at the rear end of the switching valve, the outlet of the mixing valve core must be routed to the rear end of the switching valve. This affects the design of the shower faucet body and the layout of the water circuit. This is especially true for shower faucets with a hydroelectric generator, where the mixing valve core is often located at the rear right side of the shower faucet body, while the hydroelectric generator is located at the front right side of the shower faucet body. The outlet of the mixing valve core, after passing through the hydroelectric generator and rerouting back to the rear end of the switching valve, greatly increases the design and manufacturing difficulty. Utility Model Content

[0003] Based on the above problems, the purpose of this utility model is to provide a valve core that uses a valve stem with swing control to achieve the opening and closing of a water passage between the side and the bottom.

[0004] To address the above problems, the following technical solution is provided: A valve core includes a housing. From front to back, the housing contains a valve stem, a valve stem support, a moving plate support, a moving plate, and a stationary plate. The valve stem, along its length, has a swing section, a hinge section, and a actuating section. The swing section extends from a valve stem hole at the front end of the housing. The hinge section has a spherical outer wall and is hinged between the front end of the housing cavity and the valve stem support. The actuating section is adapted to the moving plate support, allowing the moving plate support to slide radially towards the housing under the guidance of the valve stem support, and causing the moving plate support to drive the moving plate to slide relative to the stationary plate. The side wall of the housing has a first water inlet communicating with its inner cavity. The stationary plate has a second water inlet or a second and a third water inlet. The second water inlet is controlled by the sliding of the moving plate to maintain its connection with the inner cavity of the housing, or the second and third water inlets are selectively connected to the inner cavity of the housing by the sliding of the moving plate.

[0005] The present invention is further configured such that the valve stem bracket is engaged and fixed with the inner cavity of the housing; a sealing ring is provided at the front end of the valve stem bracket, the sealing ring is sleeved on the outside of the hinge section and the center of the ring coincides with the center of the ball of the hinge section.

[0006] The present invention is further provided with a groove in the middle section of the inner wall of the sealing ring for sealing against the outer spherical surface of the hinge section.

[0007] The present invention is further configured such that the sealing ring achieves sealing between the valve stem hole, the valve stem support, and the hinge section through axial compression of the valve stem support.

[0008] The present invention is further configured such that the outer wall of the shell is provided with an outer groove, and the outer groove is provided with a first sealing ring; the first water inlet is located on the outer wall of the shell on the side of the first sealing ring toward the rear end of the shell.

[0009] The present invention is further configured such that there are multiple first water inlets, which are spaced apart along the circumferential direction of the shell, and / or the outer diameter of the shell from the first sealing ring to the rear end of the shell is smaller than the outer diameter of the front end of the shell.

[0010] The present invention is further configured such that the stationary plate is fastened to the rear end of the housing by a snap fastener or is fixed inside the housing by a rear cover fastened to the rear end of the housing; the rear cover is provided with a fourth water inlet corresponding to the second water inlet, or is provided with a fourth water inlet corresponding to the second water inlet and a fifth water inlet corresponding to the third water inlet.

[0011] The present invention is further provided that a second sealing ring is provided between the rear cover and the stationary plate.

[0012] The present invention is further provided that the side of the rear cover facing away from the front end of the housing is provided with a third sealing ring.

[0013] The present invention is further configured such that the swing segment is provided with a positioning ball, and the front end of the housing is provided with a positioning groove that is adapted to the positioning ball when the swing segment is at two swing limit positions.

[0014] The beneficial effects of this utility model are:

[0015] 1. The valve stem bracket and the moving plate bracket slide in a concave-convex fit. By swinging the valve stem, the moving plate bracket is pushed through the actuating section, causing the moving plate to slide along the stationary plate. This controls the opening and closing of the second water inlet and the inner cavity of the housing, or the selective opening and closing of the second and third water inlets and the inner cavity of the housing, thus achieving dual-output switching. The first water inlet is located on the side of the housing. Therefore, when designing the main body of the shower faucet, the side walls of each housing can be connected in series and directly connected to the outlet of the water generator, effectively simplifying the water circuit and also realizing the piano key function.

[0016] 2. The valve stem bracket is locked and fixed to the inner cavity of the housing to restrict its circumferential and axial degrees of freedom. At the same time, the sealing ring is placed between the two mating surfaces for positioning and to constrain the hinge section so that the valve stem has the freedom to swing.

[0017] 3. The groove forms two sealing parts on the outer spherical surface of the hinge section, which effectively ensures the sealing effect and can also store grease or silicone grease inside to achieve the effects of lubrication and sealing; at the same time, it can also play a self-positioning role;

[0018] 4. During assembly, the stationary plate squeezes the moving plate, the moving plate support, and the valve stem support, thereby shortening the axial dimension of the sealing ring and increasing the outer circumferential dimension, while reducing the inner circumferential dimension, further improving the sealing effect, preventing water leakage, and solving the watertight problem between the swing valve stem and the inner cavity of the housing.

[0019] 5. By setting multiple first water inlets, water can be delivered to various positions in the circumferential direction of the housing; or the outer diameter of the housing can be reduced towards the rear end of the housing to leave a gap for water delivery when the first sealing ring is installed in the shower faucet body.

[0020] 6. The stationary plate can be directly snapped to the rear end of the housing to replace the function of the rear cover; or the stationary plate can be fixed inside the housing through the rear cover; when the stationary plate only has a second water inlet, the rear cover will have a corresponding fourth water inlet; when the stationary plate has a second water inlet and a third water inlet, the rear cover will have a corresponding fourth water inlet and a fifth water inlet. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0022] Figure 2 This is a schematic diagram of the structure of the stationary plate of this utility model when a second water inlet is provided.

[0023] Figure 3 This is a full cross-sectional structural diagram of the closed valve state when the stationary plate of this utility model has a second water inlet.

[0024] Figure 4 This is a full cross-sectional structural diagram of the valve-opening state when the stationary plate of this utility model has a second water inlet.

[0025] Figure 5 This is a first-view exploded structural diagram of the stationary plate of this utility model when it has a second water inlet.

[0026] Figure 6 This is a second-view exploded structural diagram of the stationary plate of this utility model when it has a second water inlet.

[0027] Figure 7 This utility model Figure 6 A schematic diagram of the fully exploded structure.

[0028] Figure 8 This is a schematic diagram of the structure of the static plate of this utility model when it is equipped with a second water inlet and a third water inlet.

[0029] Figure 9 This is a full cross-sectional structural diagram of the valve-closed state when the stationary plate of this utility model has a second water inlet and a third water inlet.

[0030] Figure 10This is a full cross-sectional structural diagram of the valve-opening state when the stationary plate of this utility model is equipped with a second water inlet and a third water inlet.

[0031] Figure 11 This is a first-view exploded structural diagram of the static plate of this utility model with a second and a third sprue.

[0032] Figure 12 This is a second-view exploded structural diagram of the static plate of this utility model when it has a second and a third sprue.

[0033] Figure 13 This utility model Figure 12 A schematic diagram of the fully exploded structure.

[0034] The labels in the diagram have the following meanings: 10-Housing; 11-Valve stem hole; 12-First port; 13-Outer groove; 131-First sealing ring; 14-Positioning groove; 20-Valve stem; 21-Swing section; 211-Positioning ball; 22-Hinged section; 23-Actuating section; 30-Valve stem bracket; 40-Moving plate bracket; 50-Moving plate; 60-Stationary plate; 61-Second port; 62-Third port; 70-Sealing ring; 71-Groove; 80-Rear cover; 81-Fourth port; 82-Fifth port; 83-Second sealing ring; 84-Third sealing ring. Detailed Implementation

[0035] 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.

[0036] refer to Figures 1 to 13 ,like Figures 1 to 13 The valve core shown includes a housing 10. Inside the housing 10, from front to back, are arranged a valve stem 20, a valve stem support 30, a moving plate support 40, a moving plate 50, and a stationary plate 60. The valve stem 20, along its length, has a swing section 21, a hinge section 22, and a actuating section 23. The swing section 21 extends from the valve stem hole 11 at the front end of the housing 10. The hinge section 22 has a spherical outer wall and is hinged between the front end of the inner cavity of the housing 10 and the valve stem support 30. The actuating section 23 is adapted to the moving plate support 40 to support the moving plate. The bracket 40 slides radially toward the housing 10 under the guidance of the valve stem bracket 30, and the moving plate bracket 40 drives the moving plate 50 to slide relative to the stationary plate 60; the side wall of the housing 10 is provided with a first water inlet 12 that communicates with its inner cavity; the stationary plate 60 is provided with a second water inlet 61 or a second water inlet 61 and a third water inlet 62, the second water inlet 61 is controlled to be connected to the inner cavity of the housing 10 by the sliding of the moving plate 50, or the second water inlet 61 and the third water inlet 62 are controlled to be connected to the inner cavity of the housing 10 by the sliding of the moving plate 50.

[0037] In the above structure, the valve stem bracket 30 and the moving plate bracket 40 slide in a concave-convex fit. By swinging the valve stem 20, the moving plate bracket 40 is pushed through the actuating section 23, causing the moving plate 50 to slide along the stationary plate 60. This controls the opening and closing of the second water inlet 61 with the inner cavity of the housing 10, or the selective opening and closing of the second water inlet 61 and the third water inlet 62 with the inner cavity of the housing 10, thus achieving dual-path output switching. The first water inlet 12 is located on the side of the housing 10. Therefore, when designing the main body of the shower faucet, the side walls of each housing 10 can be directly connected in series and directly connected to the outlet of the water generator, effectively simplifying the water circuit and realizing the piano key function.

[0038] In this embodiment, the valve stem bracket 30 is engaged and fixed to the inner cavity of the housing 10; the valve stem bracket 30 is provided with a sealing ring 70 at its front end, and the sealing ring 70 is sleeved on the outside of the hinge section 22 and the center of the ring coincides with the center of the ball of the hinge section 22.

[0039] In the above structure, the valve stem support 30 is engaged and fixed with the inner cavity of the housing 10 to restrict its circumferential and axial degrees of freedom. At the same time, the sealing ring 70 is positioned between the two mating surfaces and constrains the hinge section 22 to allow the valve stem 20 to have swing freedom.

[0040] In this embodiment, the inner wall of the sealing ring 70 is provided with a groove 71 for sealing and fitting with the outer spherical surface of the hinge section 22.

[0041] In the above structure, two sealing parts are formed on the outer spherical surface of the hinge section 22, which effectively ensures the sealing effect and can also store grease or silicone grease inside to achieve the effects of lubrication and sealing; at the same time, it can also play a self-positioning role.

[0042] In this embodiment, the sealing ring 70 achieves sealing between the valve stem hole 11, the valve stem support 30, and the hinge section 22 through the axial compression of the valve stem support 30.

[0043] In the above structure, the stationary plate 60 squeezes the moving plate 50, the moving plate support 40, and the valve stem support 30 during assembly, thereby shortening the axial dimension of the sealing ring 70 and increasing the outer circumferential dimension, while reducing the inner circumferential dimension, further improving the sealing effect, preventing water leakage, and solving the watertight problem between the swing valve stem 20 and the inner cavity of the housing 10.

[0044] In this embodiment, the outer wall of the housing 10 is provided with an outer groove 13, and the outer groove 13 is provided with a first sealing ring 131; the first water inlet 12 is located on the outer wall of the housing 10 on the side of the first sealing ring 131 toward the rear end of the housing 10.

[0045] In the above structure, the first sealing ring 131 can prevent water from leaking out of the area outside the first sprue 12.

[0046] In this embodiment, there are multiple first water inlets 12, which are spaced apart along the circumferential direction of the housing 10, and / or the outer diameter of the housing 10 from the first sealing ring 131 toward the rear end of the housing 10 is smaller than the outer diameter of the front end of the housing 10.

[0047] In the above structure, by setting multiple first water inlets 12, water can be transported to various positions in the circumferential direction of the housing 10; or the outer diameter of the housing 10 can be reduced by reducing the first sealing ring 131 towards the rear end of the housing 10, so that a gap for water transport can be left at the position of the housing 10 outside the first water inlet 12 when it is installed in the shower faucet body.

[0048] In this embodiment, the stationary plate 60 is fixed to the rear end of the housing 10 by a snap-fit ​​(the snap-fit ​​method is prior art) or fixed inside the housing 10 by a rear cover 80 that is also fixed to the rear end of the housing 10 by a snap-fit ​​(the snap-fit ​​method is prior art); the rear cover 80 is provided with a fourth water inlet 81 corresponding to the second water inlet 61, or it is provided with a fourth water inlet 81 corresponding to the second water inlet 61 and a fifth water inlet 82 corresponding to the third water inlet 62.

[0049] In the above structure, the stationary plate 60 can be directly snapped to the rear end of the housing 10 to replace the function of the rear cover 80; or the stationary plate 60 can be fixed inside the housing 10 through the rear cover 80; when the stationary plate 60 is only provided with the second sprue 61, the rear cover 80 is provided with the corresponding fourth sprue 81; when the stationary plate 60 is provided with the second sprue 61 and the third sprue 62, the rear cover 80 is provided with the corresponding fourth sprue 81 and the fifth sprue 82.

[0050] In this embodiment, a second sealing ring 83 is provided between the rear cover 80 and the stationary piece 60.

[0051] The above structure is used to ensure the sealing between the back cover 80 and the stationary plate 60.

[0052] In this embodiment, the rear cover 80 is provided with a third sealing ring 84 on the side facing away from the front end of the housing 10.

[0053] In the above structure, the third sealing ring 84 is used to seal against the bottom of the valve core mounting cavity of the shower faucet body.

[0054] In this embodiment, the swing segment 21 is provided with a positioning ball 211, and the front end of the housing 10 is provided with a positioning groove 14 that is adapted to the positioning ball 211 when the swing segment 21 is at two swing limit positions.

[0055] The above structure is used to provide a tactile feedback to the valve stem 20.

[0056] 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 valve core, comprising a housing, wherein a valve stem, a valve stem support, a moving plate support, a moving plate, and a stationary plate are sequentially arranged from front to back within the housing, characterized in that: The valve stem is provided with a swing section, a hinge section and a toggle section in sequence along its length. The swing section extends out of the valve stem hole at the front end of the housing. The outer wall of the hinge section is spherical and is hinged between the front end of the housing cavity and the valve stem support. The toggle section is adapted to the moving plate support so that the moving plate support slides radially toward the housing under the guidance of the valve stem support, and the moving plate support drives the moving plate to slide relative to the stationary plate. The side wall of the housing is provided with a first water port that communicates with its inner cavity. The stationary plate is provided with a second water port or a second water port and a third water port. The second water port is controlled to be connected to the inner cavity of the housing by the sliding of the moving plate, or the second water port and the third water port are controlled by the sliding of the moving plate to communicate with the inner cavity of the housing.

2. A valve core according to claim 1, characterized in that: The valve stem bracket is engaged and fixed to the inner cavity of the housing; a sealing ring is provided at the front end of the valve stem bracket, and the sealing ring is sleeved on the outside of the hinge section with the center of the ring coinciding with the center of the ball of the hinge section.

3. A valve core according to claim 2, characterized in that: The inner wall of the sealing ring is provided with a groove in the middle section for sealing against the outer spherical surface of the hinge section.

4. A valve core according to claim 2 or 3, characterized in that: The sealing ring achieves a seal between the valve stem hole, the valve stem support, and the hinge section through axial compression of the valve stem support.

5. A valve core according to claim 1, characterized in that: The outer wall of the shell is provided with an outer groove, and the outer groove is provided with a first sealing ring; the first water inlet is located on the outer wall of the shell on the side of the first sealing ring toward the rear end of the shell.

6. A valve core according to claim 5, characterized in that: The first water inlet is multiple and is spaced apart along the circumferential direction of the shell, and / or the outer diameter of the shell from the first sealing ring to the rear end of the shell is smaller than the outer diameter of the front end of the shell.

7. A valve core according to claim 1, characterized in that: The stationary plate is fixed to the rear end of the housing by a snap fastener or to the housing by a rear cover that is snap fastener to the rear end of the housing; the rear cover is provided with a fourth water inlet corresponding to the second water inlet, or is provided with a fourth water inlet corresponding to the second water inlet and a fifth water inlet corresponding to the third water inlet.

8. A valve core according to claim 7, characterized in that: A second sealing ring is provided between the rear cover and the stationary plate.

9. A valve core according to claim 8, characterized in that: The rear cover has a third sealing ring on the side facing away from the front end of the housing.

10. A valve core according to claim 1, characterized in that: The swing segment is provided with a positioning ball, and the front end of the housing is provided with a positioning groove that matches the positioning ball when the swing segment is at two swing limit positions.

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