A water metering valve and faucet

Abstract

The application discloses a quantitative outlet valve and a faucet, and relates to the field of faucet valves. The quantitative outlet valve comprises a connecting cylinder, a valve core and a knob. The connecting cylinder is provided with a water inlet and a water outlet. The valve core is arranged in the connecting cylinder and is provided with a connecting channel in the middle. The valve core is characterized in that the valve core further comprises a first reset member and a second reset member. The first reset member is connected with the connecting cylinder and the knob. The knob is arranged at the front end of the connecting cylinder and is in sliding connection with the valve core, and is used for pushing the valve core. The second reset member is arranged in the connecting cylinder. The first reset member and the second reset member are used for automatically resetting the knob and the valve core, and cutting off the water path. The greater the rotation degree of the knob is, the longer the time for which the valve core connects the water inlet and the water outlet is, and thus the total water outlet amount of the valve can be controlled.

Description

Technical Field

[0001] The invention relates to the field of faucet valves, and in particular to a quantitative water outlet valve and a faucet. Background Art

[0002] Existing purely mechanical valves can only regulate water flow during use, but cannot adjust and control the total amount of water flowing out at one time. This makes them inadequate for applications requiring precise control of water volume. While electronic valves can control water flow, they are expensive and require electricity to operate.

[0003] It can be seen that the existing technology still needs to be improved and enhanced. Summary of the Invention

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a quantitative water outlet valve and faucet, aiming to solve the technical problem in the prior art that the purely mechanical valve cannot control the total water output.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A quantitative water outlet valve comprises a connecting cylinder, a valve core and a knob; the connecting cylinder is provided with a water inlet and a water outlet; the valve core is arranged in the connecting cylinder, and a connecting channel is provided in the middle thereof; wherein, it also includes a first reset member and a second reset member; the first reset member connects the connecting cylinder and the knob, and is used to reset the knob; the knob is arranged at the front end of the connecting cylinder, is slidably connected to the valve core, and is used to push the valve core; the second reset member is arranged in the connecting cylinder, and is used to reset the valve core.

[0007] The quantitative water outlet valve is provided with a push rod at the rear of the knob; a slot is provided on the outer wall of the valve core; the upper wall of the slot is provided with an inclined surface facing the insertion port; the push rod is inserted into the slot, and its insertion end is connected to the inclined surface.

[0008] The quantitative water outlet valve is characterized in that a guide strip is radially provided on the inner wall of the connecting cylinder, a guide groove is provided on the outer wall of the valve core, and the guide strip and the guide groove are adapted to each other.

[0009] The quantitative water outlet valve, wherein the second reset member is arranged between the rear end inner wall of the connecting cylinder and the valve core.

[0010] The quantitative water outlet valve, wherein the second reset member is arranged between the front end inner wall of the connecting cylinder and the valve core.

[0011] The quantitative water outlet valve, wherein the first reset member is a torsion spring; an annular protrusion is provided on the front end outer wall of the connecting cylinder; the front and rear ends of the first reset member are fixedly connected to the knob and the annular protrusion respectively.

[0012] The quantitative water outlet valve is characterized in that an indicator bar is provided at the front end of the connecting tube; an arc-shaped through hole is provided on the knob; and the indicator bar passes through the arc-shaped through hole.

[0013] The quantitative water outlet valve further includes a plurality of scale lines, which are arranged on the front wall of the knob and are circumferentially arranged with the rotation axis of the knob as the center.

[0014] The quantitative water outlet valve is provided with a receiving cavity at the rear of the knob, the front end of the connecting tube is inserted into the receiving cavity, an annular groove is circumferentially provided on the cavity mouth wall of the receiving cavity, and the annular protrusion is engaged with the annular groove.

[0015] A faucet comprises a water outlet pipe, a water inlet pipe and the above-mentioned quantitative water outlet valve.

[0016] Beneficial effects:

[0017] The present invention provides a metered water outlet valve. A first reset member connects the knob and the connecting tube, allowing the knob to be reset after rotation. A second reset member is disposed within the connecting tube and is used to reset the valve core after movement. When the knob is rotated, its front end pushes against the valve core, causing it to move backward, thereby connecting a connecting channel to the water outlet and water inlet. When the knob is released, the knob and valve core reset under the action of the first and second reset members, respectively. The greater the degree of knob rotation, the longer the connecting channel remains connected to the water outlet and water inlet, and the greater the total amount of water discharged.

[0018] The present invention also provides a faucet provided with the above-mentioned quantitative water outlet valve, which can select the total amount of water outlet according to actual needs when in use, is purely mechanically controlled, and does not require any electrical equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the exploded view of the quantitative water outlet valve.

[0020] Figure 2 A schematic diagram of the structure of the knob and valve in one embodiment Figure 1 .

[0021] Figure 3 A schematic diagram of the structure of the knob and valve in one embodiment Figure 2 .

[0022] Figure 4 A schematic diagram of the structure of the knob and valve in one embodiment Figure 3.

[0023] Figure 5 A schematic diagram of the structure of the knob and valve in one embodiment Figure 4 .

[0024] Figure 6 It is a schematic diagram of the connection relationship between the valve core and the connecting cylinder.

[0025] Figure 7 It is a structural diagram of the connecting tube.

[0026] Figure 8 Schematic diagram of the internal structure of a quantitative water outlet valve in one embodiment Figure 1 .

[0027] Figure 9 Schematic diagram of the internal structure of a quantitative water outlet valve in one embodiment Figure 2 .

[0028] Figure 10 for Figure 8 Enlarged view at point A.

[0029] Figure 11 Schematic diagram of the structure of the indicator bar and the arc-shaped through hole.

[0030] Figure 12 Schematic diagram of the scale line structure.

[0031] Figure 13 A schematic diagram of the structure of the knob.

[0032] Figure 14 A schematic diagram of the structure of a faucet.

[0033] Explanation of the main component symbols: 1-connecting cylinder, 2-valve core, 3-knob, 11-water inlet, 12-water outlet, 21-connecting channel, 4-first reset member, 5-second reset member, 31-push rod, 22-slot, 23-inclined surface, 13-guide bar, 24-guide groove, 14-annular protrusion, 15-indicator bar, 32-arc-shaped through hole, 33-scale line, 6-water outlet pipe, 7-water inlet pipe, 34-accommodating chamber, 35-annular groove, 36-protrusion, 25-concave cavity. DETAILED DESCRIPTION

[0034] The present invention provides a quantitative water outlet valve and faucet. To make the purpose, technical solution, and effects of the present invention more clear and explicit, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only for the purpose of explaining the present invention and are not intended to limit the present invention.

[0035] In the description of the present invention, it should be understood that the terms "front", "rear", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, and a specific orientation structure and operation. Therefore, it cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0036] See also Figure 1 、 Figure 6 and Figure 8 The present invention provides a quantitative water outlet valve, including a connecting tube 1, a valve core 2 and a knob 3; the connecting tube 1 is provided with a water inlet 11 and a water outlet 12; the valve core 2 is arranged in the connecting tube 1, and a connecting channel 21 is provided in the middle thereof; wherein, it also includes a first reset member 4 and a second reset member 5; the first reset member 4 is connected to the connecting tube 1 and the knob 3, and is used to reset the knob 3; the knob 3 is arranged at the front end of the connecting tube 1, and is slidably connected to the valve core 2, and is used to push the valve core 2; the second reset member 5 is arranged in the connecting tube 1, and is used to reset the valve core 2. Specifically, the valve core 2 is adapted to the connecting tube 1. When the knob 3 is rotated, it pushes the valve core 2, causing it to move backward, connecting the water inlet 11 and the water outlet 12. The connecting tube 1 limits the rotation of the valve core 2 within the connecting tube 1, so that the valve core 2 can only slide back and forth within the connecting tube 1. The shape of the valve core 2 can be a rectangular parallelepiped or a cylinder. If it is a cylinder, it needs to be equipped with a limit block to limit its rotation. The rear part of the knob 3 is inserted into the connecting tube 1 and is slidably connected to the valve core 2. Please refer to Figure 2 In one embodiment, the knob 3 and the rear wall surface can be inclined or curved toward the inside. When the knob 3 is rotated, the front of the valve core 2 is pushed by the knob 3, and the valve core 2 slides backward. Figure 3 In another embodiment, the contact surface between the valve core 2 and the knob 3 can be an outward-facing inclined surface or curved surface. When the knob 3 rotates, it is blocked by the front wall of the valve core 2, thereby pushing the front wall of the valve core 2 and sliding along the front wall of the valve core 2, forcing the valve core 2 to move backward. Figure 4In another embodiment, the contact surfaces of the valve core 2 and the knob 3 can both be curved surfaces and fit together, wherein the rear portion of the valve core 2 is provided with two symmetrical protrusions 36, and the front portion of the knob 3 is provided with a concave cavity 25, and the surfaces of the two protrusions 36 fit together with the curved surface of the wall of the concave cavity 25; the curved shapes of the valve core 2 and the knob 3 can also be interchanged. By controlling the rotation angle of the knob 3, the distance the valve core 2 moves backward can be controlled, and the size of the connection section between the connecting channel 21 and the water outlet 12 and the water inlet 11 can be further controlled. After the external force is removed, the knob 3 and the valve core 2 gradually reset. The greater the distance the valve core 2 moves backward, the longer the reset time, the longer the connection time between the water inlet 11 and the water outlet 12, and the greater the total amount of water output. The first reset member 4 and the second reset member 5 can be springs or other parts with elastic deformation capabilities.

[0037] See also Figure 5 In one embodiment, a push rod 31 is provided at the rear of the knob 3; a slot 22 is provided on the outer wall of the valve core 2; a slope 23 facing the insertion opening is provided on the upper wall of the slot 22; the push rod 31 is inserted into the slot 22, with its insertion end contacting the slope 23. When the knob 3 is rotated upward, the push rod 31 pushes against the slope 23, causing the valve core 2 to move backward. When the knob 3 is rotated, the push rod 31 is driven to rotate, and the insertion end of the push rod 31 pushes against the slope 23 during rotation, causing the slope 23 to move backward, thereby moving the valve core 2 backward.

[0038] See also Figure 6 、 Figure 7 In one embodiment, a guide strip 13 is radially disposed on the inner wall of the connecting cylinder 1, and a guide groove 24 is disposed on the outer wall of the valve core 2. The guide strip 13 fits into the guide groove 24. The valve core 2 is cylindrical, and the inner cavity of the connecting cylinder 1 fits therewith. The guide strip 13 is used to restrict the valve core 2, preventing it from rotating under the pressure of the knob 3.

[0039] See also Figure 8 In one embodiment, the second reset member 5 is disposed between the rear end inner wall of the connecting tube 1 and the valve core 2. In this embodiment, the second reset member 5 may be a spring or an elastic plastic block. When the valve core 2 moves backward, the second reset member 5 is compressed. When the external force is removed, the second reset member 5 can return to its original shape through elastic deformation, pushing the valve core 2 to reset.

[0040] See also Figure 9In another embodiment, the second reset member 5 is disposed between the front inner wall of the connecting tube 1 and the valve core 2. In this embodiment, the second reset member 5 may be a spring, and is fixedly connected to the front inner wall of the connecting tube 1 and the valve core 2, respectively. When the valve core 2 moves backward, the second reset member 5 is pulled, causing the second reset member 5 to deform. When the external force is removed, the second reset member 5 retracts, pulling the valve core 2 back to its original position.

[0041] See also Figure 7 、 Figure 10 In one embodiment, the first return member 4 is a torsion spring; an annular protrusion 14 is provided on the front outer wall of the connecting tube 1; the front and rear ends of the first return member 4 are fixedly connected to the knob 3 and the annular protrusion 14, respectively. When the knob 3 is rotated, the first return member 4 twists, generating a rebound force. When the external force is removed, the knob 3 is pulled back to its original position.

[0042] See also Figure 10 and Figure 11 In one embodiment, an indicator bar 15 is provided at the front end of the connecting tube 1; an arcuate through-hole 32 is provided on the knob 3; and the indicator bar 15 passes through the arcuate through-hole 32. The indicator bar 15 is fixedly connected to the connecting tube 1. When the knob 3 is rotated, the indicator bar 15 and the arcuate through-hole 32 move relative to each other. The change in the relative position of the indicator bar 15 and the arcuate through-hole 32 allows for a clearer identification of the degree of rotation of the knob 3, facilitating control of the total amount of water output.

[0043] See also Figure 12 In one embodiment, the quantitative water outlet valve further includes a plurality of scale lines 33 disposed on the front wall of the knob 3 and arranged circumferentially around the rotation axis of the knob 3. Specifically, the plurality of scale lines 33 may be disposed along the arc-shaped through hole 32, corresponding to the total amount of water output at different rotation degrees.

[0044] See also Figure 10 and Figure 13In one embodiment, a receiving cavity 34 is provided at the rear of the knob 3, into which the front end of the connecting tube 1 is inserted. An annular groove 35 is circumferentially provided on the wall of the cavity 34, and the annular protrusion 14 engages with the annular groove 35. Specifically, the front end of the connecting tube 1, the first reset member 4, and the annular protrusion 14 are all enclosed within the receiving cavity 34; the front end of the first reset member 4 is fixedly connected to the wall of the cavity 34, and the rear end of the first reset member 4 is fixedly connected to the front wall of the annular protrusion 14. When the first reset member 4 is a component such as a metal spring, enclosing the first reset member 4 with the knob 3 can reduce moisture contact with the first reset member 4, reducing rust and extending its service life. Furthermore, after the knob 3 and the annular protrusion 14 are engaged, the knob 3 can rotate relative to the annular protrusion 14 without separating from the connecting tube 1, resulting in a more secure structure. In one embodiment, the push rod 31 extends from the receiving cavity 34 and is inserted into the connecting tube 1.

[0045] See also Figure 14 A faucet includes a water outlet pipe 6, a water inlet pipe 7, and the aforementioned quantitative water outlet valve. The water outlet pipe 6 is connected to the water outlet 12 of the connecting tube 1, and the water inlet pipe 7 is connected to the water inlet 11 of the connecting tube 1. The quantitative water outlet valve can achieve quantitative water discharge from the faucet without the need for electrical control or electric drive.

[0046] To sum up, the present invention limits the movement trajectory of the valve core 2 and adopts an inclined surface 23 or a curved surface in the sliding connection between the valve core 2 and the knob 3, so that when the knob 3 is rotated, the valve core 2 can be pushed to move backward, connecting the water inlet 11 and the water outlet 12, and by providing a first reset member 4 and a second reset member 5, the knob 3 and the valve core 2 can be automatically reset respectively, cutting off the connection between the water inlet 11 and the water outlet 12, so that the valve can discharge water in a quantitative manner.

[0047] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of the present invention, and all these changes or substitutions should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A quantitative water outlet valve, comprising a connecting tube, a valve core and a knob; the connecting tube is provided with a water inlet and a water outlet; the valve core is arranged in the connecting tube, and a connecting channel is provided in the center thereof; characterized in that: The valve core is provided with a first reset member and a second reset member; the first reset member is connected to the connecting cylinder and the knob, and is used to reset the knob; the knob is provided at the front end of the connecting cylinder, and is slidably connected to the valve core, and is used to push the valve core; the second reset member is provided in the connecting cylinder, and is used to reset the valve core; a push rod is provided at the rear of the knob; a slot is provided on the outer wall of the valve core; an upper wall of the slot is provided with an inclined surface facing the insertion port; the push rod is inserted into the slot, and its insertion end is in contact with the inclined surface; the inner wall of the connecting cylinder A guide strip is provided in the upper radial direction, a guide groove is provided on the outer wall of the valve core, and the guide strip and the guide groove are adapted; the first reset member is a torsion spring; an annular protrusion is provided on the front end outer wall of the connecting cylinder; the front and rear ends of the first reset member are fixedly connected to the knob and the annular protrusion respectively; an indicator strip is provided at the front end of the connecting cylinder; an arc-shaped through hole is provided on the knob; the indicator strip passes through the arc-shaped through hole; and it also includes a plurality of scale lines, and the plurality of scale lines are provided on the front wall of the knob, and are circumferentially arranged with the rotation axis of the knob as the center.

2. The quantitative water outlet valve according to claim 1, characterized in that: The second restoring member is arranged between the rear end inner wall of the connecting cylinder and the valve core.

3. The quantitative water outlet valve according to claim 1, characterized in that: The second restoring member is arranged between the front end inner wall of the connecting cylinder and the valve core.

4. The quantitative water outlet valve according to claim 1, characterized in that: The rear portion of the knob is provided with an accommodating cavity, the front end of the connecting tube is inserted into the accommodating cavity, an annular groove is circumferentially provided on the cavity opening wall of the accommodating cavity, and the annular protrusion is engaged with the annular groove.

5. A faucet, characterized in that: It comprises a water outlet pipe, a water inlet pipe and the quantitative water outlet valve according to any one of claims 1 to 4.

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