Axial switching small size puller

Abstract

The utility model discloses an axial switching small size pull head, including the body, be provided with the watercourse in the body, be provided with the switching shaft in the watercourse, the axis of switching shaft does not coincide with the axis of body, be provided with the control key of switching shaft cooperation on the body, the utility model discloses switching shaft and the eccentricity setting of body, can make the space of body interior better utilization, make product can achieve smaller size.

Description

Technical Field

[0001] This utility model relates to a small-sized pull-out head for axial switching. Background Technology

[0002] Currently, most pull-out water taps on the market have their function switching buttons located on the side, which cannot meet the needs of different customers. Pull-out taps with axial button switching for water spray function are rare; due to structural limitations, they are larger in size and diameter. The ballpoint pen-style button switching structure, where buttons are in the same position for different function states, makes it difficult to quickly distinguish the current function level. Furthermore, the pressing force is significantly affected by water pressure variations; for example, the difference between 20 PSI and 125 psi water pressure is very large, and it is difficult to achieve a pressing force below 22 N at 125 PSI water pressure. Summary of the Invention

[0003] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a small-sized pull-out head with axial switching.

[0004] This utility model is achieved through the following technical solution:

[0005] A small-sized pull-out head with axial switching includes a body, a water channel inside the body, a switching shaft inside the water channel, the axis of the switching shaft not coinciding with the axis of the body, and a control key on the body that cooperates with the switching shaft.

[0006] In this embodiment of the invention, a water outlet is provided on one side of the main body axis, and a switching shaft is provided on the other side of the main body axis.

[0007] In this embodiment of the invention, a control key is provided at one end of the main body, and the control key can move synchronously with the switching axis.

[0008] In this embodiment of the utility model, the control key is provided with a slot, and one end of the switching shaft can be inserted into the slot, with one end of the switching shaft having an interference fit with the slot.

[0009] In this embodiment of the utility model, the waterway is provided with a connected water inlet, a first water inlet and a cavity. The other end of the switching shaft can be disposed in the cavity. A first sealing ring is disposed on the switching shaft. The first sealing ring can be connected to the inner peripheral wall of the cavity on both sides of the first water inlet along the axial direction.

[0010] In this embodiment of the utility model, a first water outlet and a second water outlet are also included. When the first sealing ring is engaged with the inner peripheral wall of the cavity on one side of the first water inlet in the axial direction, the first water inlet can be connected to the first water outlet. When the first sealing ring is engaged with the inner peripheral wall of the cavity on the other side of the first water inlet in the axial direction, the first water inlet can be connected to the second water outlet.

[0011] In this embodiment of the utility model, the switching shaft includes a pressure rod and a center bolt that are connected in a mating manner. The center bolt is located in a cavity, and the first sealing ring is disposed on the outer periphery of the center bolt. One end of the pressure rod can be inserted and mated with a control key. A rotor is sleeved on the pressure rod, and a first ratchet is provided on the peripheral wall of the pressure rod. A second ratchet is provided on the rotor that can mate with the first ratchet. A first spring is provided between the center bolt and the cavity.

[0012] In this embodiment of the invention, a second spring is also included, and the other end of the pressure rod can be inserted into the center bolt. The second spring is disposed between the pressure rod and the center bolt.

[0013] In this embodiment of the utility model, a guide rail is also provided inside the cavity, and a guide groove is provided on the outer periphery of the rotor. The guide rail can be connected with the guide groove, and the rotation of the rotor can cause the guide groove and the guide rail to be misaligned, so that the rotor abuts against the end of the guide rail.

[0014] In this embodiment of the utility model, a second sealing ring that can cooperate with the inner peripheral wall of the cavity is also provided on the outer periphery of the switching shaft. The second sealing ring, the switching shaft, and the cavity can form a balance cavity. A second water inlet is also provided on the side wall of the water channel. Water from the water inlet can flow into the balance cavity through the second water inlet. The balance cavity is not connected to the first water outlet or the second water outlet.

[0015] This utility model discloses a small-sized pull-out head with axial switching, which has the following beneficial effects: the pressure required to press the control button is minimally affected by water pressure. Through the balance of water inlets on both sides, the required pressing force remains essentially unchanged under both high and low pressure conditions, and the balance of front and rear water pressure reduces the influence of water pressure. This achieves low switching force, improves the pressing feel, and prevents hand strain and pain during switching. Simultaneously, the control button moves synchronously with the switching axis, allowing observation of its positional relationship with the main body and quick identification of the current function setting. Furthermore, the eccentric setting of the switching axis and the main body offsets the switching mechanism, allowing for better design of the water outlet structure within the main body, reducing the product diameter. In one design, the diameter of the main body can be reduced to 28mm, resulting in a more refined and compact overall appearance. Attached Figure Description

[0016] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a perspective view of the present invention.

[0018] Figure 2 This is a cross-sectional view of the present invention.

[0019] Figure 3 This is a schematic diagram of state one in this utility model.

[0020] Figure 4 This is a schematic diagram of state two in this utility model.

[0021] Figure 5 This is a schematic diagram of the switching shaft in this utility model. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0023] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] Referring to the accompanying drawings, a small-sized pull-out head with axial switching includes a body 10, which can also be described as a shell. A water channel 20 is provided within the body, primarily for water passage. A switching shaft 30 is disposed within the water channel. The axis A of the switching shaft does not coincide with the axis B of the body, i.e., it is eccentrically positioned. A control key 40, which can be a button, is provided on the body to cooperate with the switching shaft. Compared to existing technologies, this invention eccentrically positions the switching shaft and the body, moving the switching shaft to one side of the body's axis. This increases the space on the other side of the body's axis, allowing the water passage and outlet structure to be designed into this space. This effectively reduces the required diameter of the body, making the entire product more refined and compact.

[0028] Preferably, a water outlet component 50 is provided on one side of the main body axis, which mainly includes a water outlet channel and a water outlet panel, and a switching shaft is provided on the other side of the main body axis. That is to say, the size of the axis offset is basically the diameter that the main body can shrink.

[0029] Furthermore, a control key 40 is provided at one end of the main body. The control key can move synchronously with the switching shaft, allowing observation of changes in the positional relationship between the control key and the main body, thus indicating the current water dispensing function of the product. The control key has a slot 41 into which one end of the switching shaft can be inserted; alternatively, a pressure rod can be inserted into the slot. The other end of the pressure rod is confined within a cavity by a first ratchet, and a corresponding seal is also provided. One end of the switching shaft is interference-fitted with the slot.

[0030] Preferably, the waterway is provided with a connected inlet channel 21, a first inlet 22 and a cavity 23. The cavity can also be referred to as a water distribution cavity. The other end of the switching shaft can be set in the cavity. A first sealing ring 31 is provided on the switching shaft. The first sealing ring can cooperate with the inner peripheral wall of the cavity on both sides of the first inlet in the axial direction, which is the switching waterway after axial movement.

[0031] Furthermore, it also includes a first water outlet 24 and a second water outlet 25. When the first sealing ring is engaged with the inner peripheral wall of the cavity on one side of the first water inlet along the axial direction, the first water inlet can be connected to the first water outlet, which can be a shower water outlet. When the first sealing ring is engaged with the inner peripheral wall of the cavity on the other side of the first water inlet along the axial direction, the first water inlet can be connected to the second water outlet, which can be aerated water outlet, and both can flow out from the water outlet.

[0032] Furthermore, the switching shaft includes a pressure rod 32 and a center bolt 33 that are connected in a mating manner. The center bolt is located inside the cavity, and the first sealing ring is disposed on the outer periphery of the center bolt. One end of the pressure rod can be inserted into and mated with a control key. A rotor 34 is sleeved on the pressure rod, and a first ratchet 321 is provided on the peripheral wall of the pressure rod. A second ratchet 341 that can mate with the first ratchet is provided on the rotor. A first spring 35 is disposed between the center bolt and the cavity, thus forming a "ballpoint pen" switching structure. A second spring 36 is also included, and the other end of the pressure rod can be inserted into the center bolt. The second spring is disposed between the pressure rod and the center bolt.

[0033] Preferably, a guide rail 26 is also provided inside the cavity, and a guide groove 342 is provided on the outer periphery of the rotor. The guide rail can be connected with the guide groove. The rotation of the rotor can cause the guide groove and the guide rail to be misaligned, so that the rotor abuts against the end of the guide rail. The guide grooves are spaced apart, that is, with each rotation, the rotor and the guide rail switch between misalignment and alignment to realize the movement of the pressure rod. At the same time, the first ratchet teeth of the pressure rod are also spaced apart, so that the guide rail and the two first ratchet teeth can also cooperate, so that the pressure rod can only move axially and cannot rotate.

[0034] Furthermore, a second sealing ring 37 is provided on the outer periphery of the switching shaft to cooperate with the inner peripheral wall of the cavity. The second sealing ring, the switching shaft, and the cavity can form a balance cavity 26. A second water inlet 27 is also provided on the side wall of the water channel. Water from the water inlet can flow into the balance cavity through the second water inlet. The balance cavity is not connected to the first water outlet or the second water outlet.

[0035] More specifically, this invention achieves the following: 1. By eccentrically setting the lever and button, the overall product diameter is reduced. The button and switching shaft are interference-fitted. The button moves with the lever and stops at the corresponding gear position; during gear switching, water enters from both the front and rear ends of the switching shaft, meaning the first and second water inlets can enter simultaneously. The water pressure is balanced across the front and rear to prevent excessive pressure increase when pressing the button. With this design, the pressure difference between 20psi and 125psi water pressure will not exceed 8N; while conventional designs typically require 22N of pressure at 20psi, but exceed 22N at 125psi. This invention ensures that the pressing pressure remains below 22N at both 20-125psi.

[0036] The foregoing description illustrates and describes preferred embodiments of the present invention. As previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A small-sized pull-out head with axial switching, comprising a body, wherein a water channel is provided within the body, characterized in that, A switching shaft is installed inside the waterway. The axis of the switching shaft does not coincide with the axis of the main body. A control key that cooperates with the switching shaft is installed on the main body. A control key is installed at one end of the main body. The control key can move synchronously with the switching shaft.

2. The small-sized pull-out head with axial switching according to claim 1, characterized in that, A water outlet is provided on one side of the main body axis, and a switching shaft is provided on the other side of the main body axis.

3. A small-sized pull-out head with axial switching according to any one of claims 1 or 2, characterized in that, The control key is provided with a slot, and one end of the switching shaft can be inserted into the slot, with one end of the switching shaft having an interference fit with the slot.

4. A small-sized pull-out head with axial switching according to any one of claims 1-3, characterized in that, The waterway is provided with a connected inlet channel, a first inlet, and a cavity. The other end of the switching shaft can be placed inside the cavity. A first sealing ring is provided on the switching shaft. The first sealing ring can be connected to the inner peripheral wall of the cavity on both sides of the first inlet in the axial direction.

5. A small-sized pull-out head for axial switching according to claim 4, characterized in that, It also includes a first water outlet and a second water outlet. When the first sealing ring is engaged with the inner peripheral wall of the cavity on one side of the first water inlet in the axial direction, the first water inlet can be connected to the first water outlet. When the first sealing ring is engaged with the inner peripheral wall of the cavity on the other side of the first water inlet in the axial direction, the first water inlet can be connected to the second water outlet.

6. A small-sized pull-out head for axial switching according to claim 5, characterized in that, The switching shaft includes a pressure rod and a center bolt that are connected in a mating manner. The center bolt is located inside the cavity. The first sealing ring is disposed on the outer periphery of the center bolt. One end of the pressure rod can be inserted into and mated with a control key. A rotor is sleeved on the pressure rod. A first ratchet is provided on the peripheral wall of the pressure rod. A second ratchet is provided on the rotor that can mate with the first ratchet. A first spring is provided between the center bolt and the cavity.

7. A small-sized pull-out head for axial switching according to claim 6, characterized in that, It also includes a second spring, the other end of which can be inserted into the center bolt, and the second spring is positioned between the pressure rod and the center bolt.

8. A small-sized pull-out head for axial switching according to claim 7, characterized in that, The cavity is also provided with a guide rail, and the outer periphery of the rotor is provided with a guide groove. The guide rail can be connected with the guide groove. The rotation of the rotor can cause the guide groove and the guide rail to be misaligned, so that the rotor abuts against the end of the guide rail.

9. A small-sized pull-out head with axial switching according to any one of claims 5-8, characterized in that, The outer periphery of the switching shaft is also provided with a second sealing ring that can cooperate with the inner peripheral wall of the cavity. The second sealing ring, the switching shaft, and the cavity can form a balance cavity. The side wall of the water channel is also provided with a second water inlet. Water from the water inlet can flow into the balance cavity through the second water inlet. The balance cavity is not connected to the first water outlet or the second water outlet.

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