Drawing head capable of outputting different flows
By designing a switching device for moving shaft and spring in the pull-out head, the water flow is automatically controlled to switch to a large flow channel and maintaining the state, solving the problem of manually pressing and holding the button in the prior art to maintain a large flow, and achieving automatic switching and water-saving effects.
Patent Information
- Application Number
- CN202420840908.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-04-22
AI Technical Summary
When using the high flow function, the existing booster puller needs to hold the toggle button all the time, otherwise it will switch back to a small flow outlet and cannot automatically maintain a large flow state.
A pulling head including a water inlet channel, a large flow channel, a small flow channel and a water dividing chamber is designed. By setting a switching device for moving shaft and spring in the water dividing chamber, the water flow can be automatically controlled to switch to a large flow channel, and the water pressure is maintained to avoid backflow.
It realizes that when switching from small flow to large flow water, there is no need to manually hold the button, automatically maintaining the large flow state, freeing your hands, and water-saving effect when switching back to small flow.
Smart Images
Figure CN222811252U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a pull-out head capable of delivering different flow rates, which is suitable for the water channel switching design in a kitchen faucet. Background Art
[0002] As people need to use water in multiple positions in the kitchen, the pull-out kitchen faucet can adapt to this requirement well. The pull-out head can be pulled out and the angle and position can be changed within the specified range. The pressurized pull-out head on the market currently has the following disadvantages in use, that is, when using the high-flow function, you need to keep pressing the switching button. If you release the button, it will switch back to a small flow of water. Summary of the invention
[0003] In order to solve the above technical problems, the purpose of the utility model is to provide a pull-out head capable of delivering different flow rates.
[0004] The utility model is realized by the following technical solutions:
[0005] A pull-out head capable of delivering different flow rates comprises a main body, wherein a water inlet channel is arranged in the main body, wherein a large flow channel and a small flow channel which can be connected to the water inlet channel are also arranged in the main body, and further comprises a water diversion chamber which can be connected to the water inlet channel, wherein a switching device for water diversion is arranged in the water diversion chamber, wherein the switching device can block the water inlet end of the small flow channel or the water inlet end of the large flow channel, and wherein a one-way valve is arranged at the small flow channel.
[0006] In an embodiment of the utility model, it also includes a water outlet chamber, which can be connected to the water outlet ends of the small flow channel and the large flow channel. The one-way valve can prevent water flowing into the water outlet chamber from the large flow channel from flowing back to the water diversion chamber through the small flow channel.
[0007] In an embodiment of the utility model, the switching device includes a movable shaft and a spring arranged in a water diversion chamber, and a first sealing ring is arranged on the movable shaft. The movement of the first sealing ring can block the water inlet end of the small flow channel or the water inlet end of the large flow channel; the spring is arranged between the movable shaft and the water diversion chamber, and the spring can ensure that the pulling head is in an initial state: the small flow channel can pass water, and the water inlet end of the large flow channel is blocked.
[0008] In an embodiment of the utility model, the switching device further comprises a guide sleeve, the guide sleeve is arranged on the main body, a through hole is arranged in the middle of the guide sleeve, the movable shaft is arranged in the through hole, and an oil seal ring is arranged between the movable shaft and the through hole.
[0009] In an embodiment of the utility model, a water through hole connecting the inner and outer peripheries of the guide sleeve is provided on the outer wall of the guide sleeve, the oil seal ring is located at the upper end of the water through hole, and the water through hole can connect the through hole and the large flow channel.
[0010] In the embodiment of the utility model, a second sealing ring is further provided between the guide sleeve and the body, and the second sealing ring is located at the upper and lower ends of the water outlet. When the pulling head is in the initial state, the first sealing ring can be sealed and connected with the lower opening of the through hole.
[0011] In an embodiment of the utility model, the large flow channel is located above the small flow channel, the body is provided with an opening at the lower end of the water diversion chamber, and the first sealing ring can be sealed and connected to the opening to allow water to flow out of the large flow channel.
[0012] The utility model discloses a pull-out head capable of discharging different flow rates, which has the following beneficial effects: after being able to switch from a small flow rate of water to a large flow rate of water, there is no need to hold down the button of the switching device with the hand all the time, and the current state can be automatically maintained by the water pressure and the structure, thereby achieving continuous discharge of a large flow rate of water, freeing the hands, and resetting after starting to return to the initial state of small flow rate of water discharge, thus achieving the effect of water saving, and facilitating the user's operation when the user uses a large flow rate of water for a long time. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0014] Figure 1 It is an exploded view of the utility model.
[0015] Figure 2 It is a schematic diagram of the state of small flow water outlet of the utility model.
[0016] Figure 3 It is a schematic diagram of the state of large flow water outlet of the utility model. DETAILED DESCRIPTION
[0017] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.
[0018] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like 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, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0019] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. 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 utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0020] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0021] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0022] Referring to the drawings of the specification, a pull-out head capable of outputting different flow rates includes a main body 10, wherein a water inlet channel 11 is arranged in the main body, wherein a large flow channel 12 and a small flow channel 13 which can be connected to the water inlet channel are also arranged in the main body, and further comprises a water diversion chamber 14, wherein the water diversion chamber can be connected to the water inlet channel, wherein a switching device for water diversion is arranged in the water diversion chamber, wherein the switching device can block the water inlet end of the small flow channel or the water inlet end of the large flow channel, and a one-way valve 20 is arranged at the small flow channel, and when water flows into the water diversion chamber from the water inlet channel, the direction of the water flow is controlled by the switching device to flow to the large flow channel or the small flow channel, and when the water is switched to the large flow channel for output, the water flow is prevented from flowing back through the small flow channel, so that the switching device is controlled by the water flow, thereby returning to the small flow output.
[0023] Preferably, it also includes a water outlet chamber 15, which can be connected with the water outlet ends of the small flow channel and the large flow channel. That is to say, the water flowing through the large flow channel or the small flow channel will finally flow out from the water outlet chamber of the confluence channel. The one-way valve can prevent the water flowing into the water outlet chamber from the large flow channel from flowing back to the water diversion chamber through the small flow channel.
[0024] Furthermore, the switching device includes a moving shaft 31 and a spring 32 arranged in the water diversion chamber, and a first sealing ring 33 is arranged on the moving shaft. The movement of the first sealing ring can block the water inlet end of the small flow channel or the water inlet end of the large flow channel, and the movement of the moving shaft enables the first sealing ring to switch between the water inlet end of the small flow channel or the water inlet end of the large flow channel; the spring is arranged between the moving shaft and the water diversion chamber, and the spring can ensure that the pull head is in an initial state: the small flow channel can pass water, and the water inlet end of the large flow channel is blocked, that is to say: when the water flow is closed, under the action of the spring, the first sealing ring will only seal with the water inlet end of the large flow channel, so that when the water is used next time, a small flow of water is discharged by default.
[0025] Furthermore, the switching device also includes a guide sleeve 34, which is arranged on the main body, a through hole 35 is arranged in the middle of the guide sleeve, the movable shaft is arranged in the through hole, and an oil seal ring 36 is arranged between the movable shaft and the through hole. A water port 37 connecting the inner and outer peripheries of the guide sleeve is arranged on the outer wall, and the oil seal ring is located at the upper end of the water port, that is to say: the lowest stroke of the oil seal ring can only be above the water port, and the water port can connect the through hole and the large flow channel. A second seal ring 38 is also arranged between the guide sleeve and the main body, and the second seal ring is located at the upper and lower ends of the water port, so that the water flowing out of the water port can only flow to the large flow channel. In the initial state of the pull head: the first seal ring can be sealed and connected with the lower opening 39 of the through hole.
[0026] In one embodiment, the large flow channel is located above the small flow channel, the main body is provided with an opening 16 at the lower end of the water diversion chamber, and the first sealing ring can be sealed and connected with the opening to allow the large flow channel to discharge water. In one use, the upper end of the moving shaft is connected to the button of the pull-out head, which is basically consistent with the prior art and will not be elaborated again. By pressing the button, the moving shaft moves downward, so that the water flow is switched from a small flow to a large flow.
[0027] The present invention aims to solve the existing problem of needing to press down the moving shaft. The water channel of the main body is designed to be divided into two water outlets after the same water inlet, one of which is a small flow channel adjusted by the size of the water flow area, and the other is a large flow channel with unlimited flow; the water outlet selection of the two channels with different flow rates is switched by the up and down movement of the moving shaft. After the water is passed, the moving shaft is acted upon by the bottom spring, the water inlet end of the large flow channel is sealed by the first sealing ring on the moving shaft, the small flow channel is opened, and the water path goes to the small flow channel. Driven by the button, the water path goes to the large flow channel after the moving shaft is pressed. At the same time, the moving shaft is maintained by the water pressure to overcome the action of the spring, the water inlet end of the small flow channel is sealed with the first sealing ring, and the water outlet end of the small flow channel is provided with an anti-backflow device, and a one-way valve can be used to prevent the water flow to the large flow channel from flowing back, destroying the pressure difference between the upper and lower pressures of the moving shaft, causing the moving shaft to automatically reset to the small flow state, and after the water is turned off, the moving shaft is reset by the bottom spring force. The specific implementation method is as follows: the water channel switching mode of large and small flow rates is switched by the up and down movement of the middle moving shaft. A spring is provided at the bottom of the moving shaft to automatically reset after the water is turned off. Sealing rings are provided at the upper and lower parts of the moving shaft to seal the water. The first sealing ring at the lower part of the moving shaft seals the water inlet of the large flow channel or the water inlet of the small flow channel after switching. The small flow channel is provided with an anti-backflow device to prevent the back pressure of the moving shaft from being destroyed by backflow when switching to the large flow channel. The adjustment method of large flow water and small flow water is adjusted by the size of the designed water flow area of the water channel.
[0028] The above description shows and describes the preferred embodiments of the utility model. As mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.
Claims
1. A pull-out head capable of delivering different flow rates, comprising a body, wherein a water inlet channel is provided in the body, and a large flow channel and a small flow channel which can be connected to the water inlet channel are also provided in the body, characterized in that: It also includes a water diversion chamber, which can be connected to the water inlet channel. A switching device for water diversion is arranged in the water diversion chamber. The switching device can block the water inlet end of the small flow channel or the water inlet end of the large flow channel. A one-way valve is arranged at the small flow channel.
2. A pull-out head capable of delivering different flow rates according to claim 1, characterized in that: It also includes a water outlet cavity, which can be connected to the water outlet ends of the small flow channel and the large flow channel. The one-way valve can prevent water flowing into the water outlet cavity from the large flow channel from flowing back to the water diversion cavity through the small flow channel.
3. A pull-out head capable of delivering different flow rates according to any one of claims 1 or 2, characterized in that: The switching device includes a moving shaft and a spring arranged in the water diversion chamber, the moving shaft is provided with a first sealing ring, and the movement of the first sealing ring can block the water inlet end of the small flow channel or the water inlet end of the large flow channel; the spring is arranged between the moving shaft and the water diversion chamber, and the spring can ensure that when the pulling head is in an initial state: the small flow channel can pass water, and the water inlet end of the large flow channel is blocked.
4. A pull-out head capable of delivering different flow rates according to claim 3, characterized in that: The switching device also includes a guide sleeve, which is arranged on the main body. A through hole is arranged in the middle of the guide sleeve, and the movable shaft is arranged in the through hole. An oil seal ring is arranged between the movable shaft and the through hole.
5. A pull-out head capable of delivering different flow rates according to claim 4, characterized in that: The outer wall of the guide sleeve is provided with a water opening connecting the inner and outer peripheries thereof, the oil seal ring is located at the upper end of the water opening, and the water opening can connect the through hole and the large flow channel.
6. A pull-out head capable of delivering different flow rates according to claim 5, characterized in that: A second sealing ring is also provided between the guide sleeve and the body, and the second sealing ring is located at the upper and lower ends of the water outlet. When the pull-out head is in an initial state, the first sealing ring can be sealed and connected with the lower opening of the through hole.
7. A pull-out head capable of delivering different flow rates according to claim 6, characterized in that: The large flow channel is located above the small flow channel, the main body is provided with an opening at the lower end of the water diversion chamber, and the first sealing ring can be sealed and connected with the opening to allow the large flow channel to discharge water.