Waterway control device

Abstract

The present invention discloses a waterway control device, comprising a mounting part, a valve shaft slidably connected to the mounting part, and an elastic body; the mounting part is provided with a first waterway and a second waterway; a blocking part and a first sealing member are fixedly provided on the valve shaft; the blocking part is provided between the second waterway, and the blocking part is driven to slide by the sliding of the valve shaft to control whether the blocking part blocks the second waterway; the elastic body is provided between the valve shaft and the mounting part and can generate elastic force, the first sealing member can be acted on by the hydraulic force of the first waterway to generate a water force, the water force is greater than the elastic force and the two forces are in opposite directions, and the water force can act on the valve shaft to drive the blocking part to block the second waterway. It has the following advantages: there is no need to set a switch mechanism at the rear end of the waterway.

Description

Technical Field

[0001] The invention relates to the technical field of kitchen and bathroom, and in particular to a water channel control device. Background Art

[0002] Existing water circuit control devices, such as CN104315195A, a two-way conversion water outlet system, including a water inlet converter and a water outlet device, the water inlet converter includes a water inlet valve body and a valve plug, the water inlet valve body is provided with a first water inlet and a second water inlet, the first water inlet and the second water inlet are selectively opened by the valve plug; the water outlet device includes a water outlet valve body and a control valve core, the water outlet valve body is provided with a first water outlet and a second water outlet, the first water inlet is connected with the first water outlet to form a first water circuit, the second water inlet is connected with the second water outlet to form a second water circuit, the first water outlet is kept connected, and the second water outlet is controlled by the control valve core. The water circuit control device has the following shortcomings: an on-off mechanism (switch mechanism) needs to be set at the rear end of the water outlet, such as closing the water outlet at the rear end of the second water circuit to cause the valve plug to slide to switch to the first water outlet, the structure is complex, the operation is complex, and the cost is high. Summary of the invention

[0003] The present invention provides a water channel control device, which overcomes the shortcomings of the existing two-channel water outlet conversion system in the background technology.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] A water channel control device comprises an installation part, a valve shaft slidably connected to the installation part, and an elastic body; the installation part is provided with a first water channel and a second water channel; a blocking part and a first sealing member are fixedly provided on the valve shaft; the blocking part is provided in the second water channel, and the blocking part is driven to slide by sliding of the valve shaft to control whether the blocking part blocks the second water channel; the elastic body is provided between the valve shaft and the installation part and can generate an elastic force, and the first sealing member can be acted upon by the hydraulic force of the first water channel to generate a water force, the water force is greater than the elastic force and the two forces are in opposite directions, and the water force can act on the valve shaft to drive the blocking part to block the second water channel.

[0006] In one embodiment: the second water channel includes a second water inlet and a second water outlet, the blocking portion is disposed between the second water inlet and the second water outlet, and the blocking portion is driven to slide by the sliding of the valve shaft to control whether the blocking portion blocks the second water inlet and the second water outlet;

[0007] The valve shaft is fixed with a second sealing member, the blocking portion and the second sealing member can both be subjected to the hydraulic action of the second water channel and have equal force bearing areas, and the force bearing area of ​​the first sealing member is greater than that of the second sealing member.

[0008] In one embodiment: the installation part includes a main body and a valve body, the main body is provided with an installation cavity, a first water inlet, a first water outlet, a second water inlet and a second water outlet, the valve body is fixed in the installation cavity and a third sealing member is provided between the valve body and the installation cavity; the first sealing member is sealingly slidably connected in the installation cavity, the first water channel includes a first water inlet and a first water outlet, and the first water inlet and the first water outlet are connected in the installation cavity by the first sealing member and the third sealing member; the valve body is provided with an inner cavity, the valve body is provided with a water inlet which is arranged through and connected to the first water inlet, the part of the inner cavity of the valve body between the water inlet and the end port of the valve body connected to the second water outlet constitutes a control water channel, the valve shaft is slidably connected in the valve body, and the on and off of the second water channel is controlled by whether the blocking part is located in the control water channel.

[0009] In one embodiment: the inner wall of the installation cavity is provided with a first section and a second section, and the third sealing member is provided in the second section; the port of the first water inlet and the port of the first water outlet are both provided in the first section, and an annular gap is formed between the valve body and the first section; the port of the second water inlet and the port of the second water outlet are both provided in the second section.

[0010] In one embodiment: the inner wall of the installation cavity is also provided with a third section and a fourth section, and the second section, the first section, the third section and the fourth section are connected in sequence; an arc section is convexly provided on the outer side of the valve body, and the arc section is threadedly connected to the third section, a water passage cavity is formed between the arc section and the third section, and the first sealing member is sealingly slidably connected in the fourth section.

[0011] In one embodiment, the installation cavity further includes a fifth section, the fifth section, the second section, the first section, the third section and the fourth section are connected in sequence, and the end of the valve shaft slides into the fifth section.

[0012] In one embodiment, the valve shaft has a protruding portion that protrudes sealably beyond the valve bottom of the valve body, and the first sealing member is fixedly mounted on the protruding portion.

[0013] In one embodiment, the valve shaft is provided with a first shaft shoulder, the elastic body is provided in the valve body and sleeved outside the valve shaft, and the elastic body is also abutted between the first shaft shoulder and the valve bottom of the valve body.

[0014] In one embodiment: the valve body includes a sleeve wall with a first peripheral edge sealed and fixedly connected to the outer peripheral edge of the valve bottom, and the sleeve wall constitutes the above-mentioned inner cavity; a gap connected to the second water outlet is formed between the second peripheral edge of the sleeve wall and the main body, and the water inlet is arranged inside and outside the sleeve wall.

[0015] In one embodiment: the water channel control device is a kitchen faucet water channel control device, the first water channel is a normal water channel, and the second water channel is a purified water channel.

[0016] Compared with the background technology, this technical solution has the following advantages:

[0017] The elastic body is arranged between the valve shaft and the mounting part and can generate elastic force. The first sealing member can be subjected to the hydraulic force of the first water channel to generate water force. The water force is greater than the elastic force and the two forces are in opposite directions. Therefore, the front end controls the opening and closing of the first water channel and the second water channel to drive the water channel control to accurately follow the switching. For example, if the front end opens the first water channel (including only opening the first water channel or opening both the first water channel and the second water channel), the water force is greater than the elastic force, which can drive the valve shaft to move, drive the blocking part to block the second water channel, and close the second water channel; if the front end closes the first water channel and opens the second water channel, the second water channel is opened under the action of the elastic force, so there is no need to set a switch mechanism at the rear end of the water channel. And when the first water channel and the second water channel are both opened, the second water channel is also closed to ensure accurate water discharge in case of misoperation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0019] Figure 1 It is a three-dimensional schematic diagram of a waterway control device according to a specific implementation method.

[0020] Figure 2 It is a three-dimensional exploded schematic diagram of a waterway control device according to a specific implementation method.

[0021] Figure 3 This is one of the cross-sectional schematic diagrams of the water channel control device in a specific implementation mode. At this time, the second water channel is opened, and the arrows in the figure indicate the direction of water flow.

[0022] Figure 4 This is the second cross-sectional schematic diagram of the water channel control device in the specific implementation mode, and the second water channel is closed at this time.

[0023] Description of reference numerals: installation part 1, valve shaft 2, elastic body 3, double water outlet joint 4, inner and outer double pipe shaft 5, first water channel 11, second water channel 12, main body 13, valve body 14, installation cavity 15;

[0024] A first water inlet 111, a first water outlet 112, a second water inlet 121, a second water outlet 122, and a check valve 123;

[0025] The sleeve wall 141, the third sealing member 142, the fourth sealing member 143, the arc segment 144, and the water inlet 145;

[0026] The fifth section 151, the second section 152, the first section 153, the third section 154, the fourth section 155, and the gap 156;

[0027] Blocking portion 21 , second sealing member 22 , first sealing member 23 , shaft shoulder 24 , and snap ring 25 . DETAILED DESCRIPTION

[0028] Please refer to Figures 1 to 4The water channel control device comprises an installation part 1, a valve shaft 2 slidably connected to the installation part 1, and an elastic body 3.

[0029] The installation part 1 is provided with a first water channel 11 and a second water channel 12 . The first water channel 11 includes a first water inlet channel 111 and a first water outlet channel 112 . The second water channel 12 includes a second water inlet channel 121 and a second water outlet channel 122 .

[0030] The installation part 1 includes a main body 13 and a valve body 14; the main body 13 is provided with an installation cavity 15 and the above-mentioned first water inlet 111, first water outlet 112, second water inlet 121 and second water outlet 122. The inner wall of the installation cavity 15 is divided into the fifth section 151, the second section 152, the first section 153, the third section 154 and the fourth section 155 arranged in sequence along the first direction (from left to right in the figure), the inner diameter of the fifth section is smaller than the inner diameter of the second section, the inner diameter of the second section is smaller than the inner diameter of the first section, the inner diameter of the third section is smaller than the inner diameter of the first section, and the inner diameter of the first section is smaller than the inner diameter of the fourth section, so as to control the water action area of ​​the first sealing member and the second sealing member. The port of the first water inlet 111 and the port of the first water outlet 112 are both arranged in the first section; the port of the second water inlet 121 and the port of the second water outlet 122 are both arranged in the second section. With this structure, the layout is reasonable and the structure is compact.

[0031] The valve body 14 includes a valve bottom and a sleeve wall 141 extending axially from the outer periphery of the valve bottom, and a third sealing member 142 and a fourth sealing member 143 are fixedly provided on the outside of the sleeve wall 141. The valve body 14 is fixedly connected in the installation cavity 15, and the third sealing member 142 and the fourth sealing member 143 are both sealed and fixedly connected between the sleeve wall 141 and the second section of the valve body 14, and the port of the second water inlet 121 is between the third sealing member and the fourth sealing member to isolate the first water channel and the second water channel through the third sealing member; a gap 156 is left between the end of the sleeve wall 141 and the step surface formed by the second section and the fifth section; the port of the second water outlet 122 is located in the second section and the position corresponds to the gap, so as to connect the gap and the second water outlet 122. The valve body 14 is convexly provided with two radially symmetrically arranged arc segments 144, and the arc segment 144 is threadedly connected in the third segment 154. Because it is set as an arc segment, a water passage cavity is formed between the arc segment and the third segment. The use of this structure can facilitate the installation of the valve body, facilitate assembly, enhance the connection strength, and connect the first segment and the fourth segment.

[0032] The valve shaft 2 is fixed with a blocking portion 21, a second sealing member 22, and a first sealing member 23 arranged along the first direction. A shaft shoulder 24 is convexly provided on the valve shaft 2, and the shaft shoulder 24 is provided between the second sealing member 22 and the first sealing member 23. The valve shaft 2 is provided in the valve body 14, and the first end of the valve shaft 2 slides out of the valve bottom, and the extended part extends into the fourth section. The first sealing member 23 is located in the fourth section and is sealed and slidably connected to the fourth section; the elastic body 3 is provided in the valve body 14 and sleeved outside the valve shaft 2, and the elastic body 3 is also abutted between the first shaft shoulder 24 and the valve bottom of the valve body 14; the second end of the valve shaft 2 extends into the fifth section, and a fifth sealing member for sealing is provided between the two.

[0033] The part between the first seal 23 and the third seal 142 in the installation cavity 15 connects the first water inlet and the first water outlet, and the part includes the annular cavity between the valve body and the first section, the water passage cavity between the valve body and the third section, and the fourth section; wherein, the part connecting the first water inlet and the first water outlet is defined by the first seal, the third seal, and the outer wall and bottom wall of the valve body. The sleeve wall 141 is provided with a water inlet 145 that penetrates inside and outside and connects to the port of the second water inlet 121; the part between the water inlet 145 and the end of the sleeve wall 141 in the sleeve wall 141 constitutes a control waterway. The second seal 22 slides into the sleeve wall 141 of the valve body 14 to limit the water flow from the water inlet through the valve body 14 to the first section. The blocking part 21 is arranged between the water inlet and the second water outlet port, and between the second water inlet and the second water outlet. The blocking part 21 is driven to slide by the sliding of the valve shaft 2 to control whether the blocking part 21 blocks the second water inlet and the second water outlet. Specifically, the blocking part is located in the control water channel (between the water inlet and the end of the casing wall) to block the water channel, the second water channel is disconnected, the blocking part is adjacent to the fifth section, the blocking part and the end of the casing wall are spaced, the second water inlet--water inlet--control water channel--gap--second water outlet, and the second water channel is connected.

[0034] The blocking portion 21 and the second sealing member 22 can both be subjected to the hydraulic force of the second waterway 12 and the force bearing areas of the two are equal, so the hydraulic force of the waterway does not produce any effect. The force bearing area of ​​the first sealing member 23 is larger than the force bearing area of ​​the second sealing member 22. The elastic body 3 can generate elastic force, and the first sealing member 23 can be subjected to the hydraulic force of the first waterway 11 to generate a water force, which is larger than the elastic force and the two forces are in opposite directions, and the water force can act on the valve shaft to drive the blocking portion to block the second waterway.

[0035] In this specific implementation manner: the water channel control device is, for example, a kitchen faucet water channel control device, the first water channel is a normal water channel, and the second water channel is a purified water channel.

[0036] When the ordinary water main control valve is closed (the front end of the first water path is closed) and the clean water valve is opened (the front end of the second water path is opened), due to the hydraulic balance on the left and right sides of the valve shaft, the valve shaft moves left under the elastic force of the elastic body to open the clean water inlet, thereby realizing the outlet of clean water; when both the ordinary water and clean water control valves are in the open water state, the valve shaft pushes the ring to the right under the hydraulic force, the hydraulic force overcomes the elastic force of the elastic body, the valve shaft moves right to close the clean water inlet, and ordinary water is preferentially discharged. Under the action of the switching device (ordinary water main control valve, clean water valve), ordinary water and clean water will give priority to ordinary water, that is, the clean water and ordinary water switches are turned on at the same time, and under the action of this switching device, ordinary water is preferentially discharged.

[0037] If necessary, a check valve 123 may be provided in the second water inlet passage; a clamping ring 25 is also provided on the valve shaft 2, and the clamping ring is clamped on the protruding part of the valve shaft and the bottom of the valve body to assemble the valve shaft and the valve body together.

[0038] According to needs, the main body can also be connected to a double water outlet connector 4, which can be connected to the inner and outer double pipe shafts 5 to be connected to the faucet body or pull-out faucet of the kitchen faucet.

[0039] The above description is only a preferred embodiment of the present invention, and therefore cannot be used to limit the scope of the present invention. That is, equivalent changes and modifications made according to the patent scope of the present invention and the contents of the specification should still fall within the scope of the present invention.

Claims

1. A waterway control device, characterized in that: It includes an installation part, a valve shaft and an elastic body slidably connected to the installation part; the installation part is provided with a first waterway and a second waterway; a blocking part and a first sealing member are fixedly arranged on the valve shaft; the blocking part is arranged between the second waterway, and the blocking part is driven to slide by the sliding of the valve shaft to control whether the blocking part blocks the second waterway; the elastic body is arranged between the valve shaft and the installation part and can generate an elastic force, the direction of the elastic force is that the blocking part points from the blocking position to the open position, the first sealing member can be subjected to the hydraulic action of the first waterway to generate a water force, the water force is greater than the elastic force and the two forces are in opposite directions, and the water force can act on the valve shaft to drive the blocking part to block the second waterway; a second sealing member is also fixedly arranged on the valve shaft, the blocking part and the second sealing member can both be subjected to the hydraulic action of the second waterway and the force-bearing areas of the two members are equal, and the force-bearing area of ​​the first sealing member is greater than the force-bearing area of ​​the second sealing member.

2. The waterway control device according to claim 1, characterized in that: The second waterway includes a second water inlet and a second water outlet. The blocking portion is arranged between the second water inlet and the second water outlet. The blocking portion is driven to slide by sliding of the valve shaft to control whether the blocking portion blocks the second water inlet and the second water outlet.

3. The waterway control device according to claim 1, characterized in that: The installation part includes a main body and a valve body, the main body is provided with an installation cavity, a first water inlet, a first water outlet, a second water inlet and a second water outlet, the valve body is fixed in the installation cavity and a third sealing member is provided between the valve body and the installation cavity; the first sealing member is sealingly slidably connected in the installation cavity, the first water path includes a first water inlet and a first water outlet, and the first water inlet and the first water outlet are connected by a portion between the first sealing member and the third sealing member in the installation cavity; the valve body is provided with an inner cavity, the valve body is provided with a water inlet which is arranged through and connected to the first water inlet, the portion of the inner cavity of the valve body between the water inlet and the end port of the valve body connected to the second water outlet constitutes a control water path, the valve shaft is slidably connected in the valve body, and the on-off of the second water path is controlled by whether the blocking portion is located in the control water path.

4. The waterway control device according to claim 3, characterized in that: The inner wall of the installation cavity is provided with a first section and a second section, and the third sealing member is provided at the second section; the port of the first water inlet and the port of the first water outlet are both provided at the first section, and an annular gap is formed between the valve body and the first section; the port of the second water inlet and the port of the second water outlet are both provided at the second section.

5. The waterway control device according to claim 4, characterized in that: The inner wall of the installation cavity is also provided with a third section and a fourth section, and the second section, the first section, the third section and the fourth section are connected in sequence; an arc section is convexly provided on the outer side of the valve body, and the arc section is threadedly connected to the third section, a water passage cavity is formed between the arc section and the third section, and the first sealing member is sealingly slidably connected in the fourth section.

6. The waterway control device according to claim 5, characterized in that: The installation cavity also includes a fifth section, and the fifth section, the second section, the first section, the third section and the fourth section are connected in sequence, and the end of the valve shaft slides into the fifth section.

7. The waterway control device according to claim 3, characterized in that: The valve shaft has a protruding portion that protrudes out of the valve bottom of the valve body in a sealed manner, and the first sealing member is fixedly arranged on the protruding portion.

8. The waterway control device according to claim 3, characterized in that: The valve shaft is provided with a first shaft shoulder, the elastic body is arranged in the valve body and sleeved outside the valve shaft, and the elastic body is also arranged between the first shaft shoulder and the valve bottom of the valve body.

9. The waterway control device according to claim 3, characterized in that: The valve body comprises a sleeve wall with a first peripheral edge sealed and fixedly connected to the outer peripheral edge of the valve bottom, wherein the sleeve wall forms the above-mentioned inner cavity; a gap connected to the second water outlet is formed between the second peripheral edge of the sleeve wall and the main body, and the water inlet is arranged inside and outside the sleeve wall.

10. The waterway control device according to any one of claims 1 to 9, characterized in that: The water channel control device is a kitchen faucet water channel control device, the first water channel is a common water channel, and the second water channel is a purified water channel.

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