Stepless adjustment switching mechanism and shower head

Abstract

The application provides a stepless adjustment switching mechanism and a shower head, which comprises a mounting seat, a movable rack, a movable gear, a driving rack and a driving gear. The mounting seat is provided with a fixed rack. The movable rack is arranged in parallel with the fixed rack and is spaced apart from the fixed rack. The movable gear is arranged between the movable rack and the fixed rack and is engaged by the teeth. One end of the driving rack is hinged to the rotating shaft of the movable gear, and the other end drives the driving gear to rotate. The application forms a lever by arranging the movable gear. The length of the force arm of the movable rack for driving the movable gear to roll is twice the length of the force arm of the movable gear for driving the driving rack to advance, and the force required for switching is greatly reduced.

Description

Technical Field

[0001] This invention relates to a stepless adjustment switching mechanism and a shower head. Background Technology

[0002] The adjustment and switching mechanism is an important component of a shower head with a flow-cutting function. It is generally driven by pressing, rotating, or pushing. Among these methods, pushing is convenient to operate and the adjustment operation and effect are directly correlated. In addition, the adjustment and switching structure driven by pushing is also more likely to achieve stepless switching or stepless adjustment.

[0003] The existing push-type adjustment and switching mechanism pushes the relevant components forward or backward inside the shower head. Due to the resistance and friction of water, users need to provide considerable force when adjusting the water flow, which may cause over-push or damage to the components of the push mechanism. Summary of the Invention

[0004] To solve the above-mentioned technical problems, this invention proposes an adjustment and switching structure that requires less thrust.

[0005] In one aspect, a stepless adjustment switching mechanism is provided, including a mounting base, a movable rack, a movable gear, a drive rack, and a drive gear.

[0006] The mounting base is equipped with a fixed rack. The movable rack is parallel to and spaced apart from the fixed rack.

[0007] The movable gear is positioned between the movable rack and the fixed rack, and engages with the rack through gear meshing.

[0008] One end of the drive rack is hinged to the shaft of the movable gear, and the other end drives the drive gear to rotate.

[0009] In use, the user drives the movable rack to move relative to the fixed rack, and drives the movable gear to roll along the fixed gear, thereby driving the drive rack through the movable gear, and then driving the drive gear to rotate, so as to drive the valve core to rotate and cut the flow.

[0010] This invention uses a movable gear to form a lever. The lever arm length for the movable rack to drive the movable gear to roll is twice the lever arm length for the movable gear to drive the rack forward. In other words, the force required for this invention to achieve the switching effect is half that of a traditional push switching mechanism, which significantly reduces the force required for switching and avoids most adjustment transitions. In addition, it can extend the stroke of the push drive component, thereby improving the accuracy of adjustment and switching, making it more suitable for scenarios that require adjusting water flow rate or mixing water ratio.

[0011] Preferably, the end of the drive rack is provided with a convex shaft, which is rotatably inserted into the through hole in the middle of the movable gear.

[0012] Preferably, the drive gear is rotatably mounted on the mounting base.

[0013] Preferably, it also includes a water distribution plate, and the drive gear drives the water distribution plate to rotate. Specifically, the rotating shaft of the water distribution plate passes through the mounting base and is connected to the drive gear.

[0014] Preferably, it also includes a bracket and a push button. The bracket is disposed opposite to the mounting base and clamps the movable rack, movable gear, drive rack, and drive gear, improving the installation stability of each component and preventing them from falling out of their working position during use. The movable rack is mounted on the bracket, and the push button drives the bracket to reciprocate. Alternatively, the bracket has a strip-shaped adjustment hole corresponding to the movement trajectory of the movable rack, and the push button drives the movable rack through the strip-shaped adjustment hole.

[0015] Preferably, the mounting base has guide grooves on both sides, and the bracket has upwardly extending mounting plates on both sides, with guide strips on the inner side of the mounting plates. The mounting base and the bracket are slidably assembled together via the guide grooves and guide strips.

[0016] Secondly, a shower head is provided, including the stepless adjustment switching mechanism described in the first aspect.

[0017] Preferably, the shower head includes a body and a nozzle. The body has a water inlet channel and several water outlet channels. A shower valve core is provided between the water inlet channel and the water outlet channels. The mounting base is disposed between the body and the nozzle, and the drive gear connects to the shower valve core to switch the water inlet channel to different water outlet channels. The mounting base has several water passage holes in the portion between the body and the nozzle, including water passage holes for a rotating water structure, and different water passage holes are connected to different water outlet channels.

[0018] Preferably, to improve the water output function of the shower head, the water inlet channel of the main body branches into a shower water inlet channel and a top spray water inlet channel, and a top spray valve core is provided between the shower water inlet channel and the top spray water inlet channel. The shower water inlet channel is connected to the water outlet channel through the shower valve core. The main body also includes a top spray water channel. The top spray water inlet channel is connected to the top spray water channel.

[0019] Preferably, the shower head includes a rod-shaped housing with strong integration. The stepless adjustment switching mechanism is installed on the handle of the rod-shaped housing. The head end of the rod-shaped housing is provided with a top spray nozzle, which is connected to the top spray water channel.

[0020] As can be seen from the above description of the present invention, the present invention has the following beneficial effects:

[0021] By setting up a movable gear to form a lever, the lever arm length of the movable rack driving the movable gear to roll is twice the lever arm length of the movable gear driving the rack to move forward. That is, the force required for the present invention to achieve the switching effect is half the force of the traditional push switching mechanism, which greatly reduces the force required for switching, avoids most adjustment transitions, and reduces the damage to the push components.

[0022] While reducing thrust, it can also extend the stroke of the driving component, thereby improving the accuracy of adjustment and switching, making it more suitable for scenarios where the water flow rate or the mixing ratio of water needs to be adjusted.

[0023] By setting up brackets, the installation stability of each component, including the movable rack, movable gear, drive rack, and drive gear, can be effectively ensured. Attached Figure Description

[0024] The accompanying drawings, which are provided to further illustrate the invention and constitute a part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention.

[0025] in:

[0026] Figure 1 A cross-section of a continuously variable adjustment switching mechanism Figure 1 ;

[0027] Figure 2 This is an exploded view of a continuously variable adjustment switching mechanism;

[0028] Figure 3 This is an isometric view of a continuously adjustable switching mechanism;

[0029] Figure 4 A cross-section of a continuously variable adjustment switching mechanism Figure 2 ;

[0030] Figure 5 This is an isometric view of the mounting base;

[0031] Figure 6 This is an axonometric view of the movable tooth and the bracket;

[0032] Figure 7 A cross-section of a continuously variable adjustment switching mechanism Figure 3 (Water spray state)

[0033] Figure 8 A cross-section of a continuously variable adjustment switching mechanism Figure 4 (Shower water status)

[0034] Figure 9 A cross-section of a continuously variable adjustment switching mechanism Figure 5 (Particle water state)

[0035] Figure 10 A cross-section of a continuously variable adjustment switching mechanism Figure 6 (Top spray water mode)

[0036] Figures 1 to 10 The markings are as follows: mounting base 1, fixed rack 11, guide groove 12, water passage hole 13, movable rack 2, movable gear 3, drive rack 4, drive gear 5, water distribution plate 6, bracket 7, guide bar 71, push button 8, shower head 9, body 91, water inlet channel 911, water outlet channel 912, shower head valve core 913, shower water inlet channel 914, top spray water inlet channel 915, top spray valve core 916, water outlet 92, rod-shaped housing 93, top spray nozzle 931. Implementation

[0037] To make the technical problems, technical solutions, and beneficial effects of this invention clearer and more understandable, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Example 1

[0038] Please see Figures 1 to 6 A stepless adjustment switching mechanism includes a mounting base 1, a movable rack 2, a movable gear 3, a drive rack 4, and a drive gear 5.

[0039] The mounting base 1 is provided with a fixed rack 11. The movable rack 2 is parallel to and spaced apart from the fixed rack 11.

[0040] The movable gear 3 is disposed between the movable rack 2 and the fixed rack 11. In this embodiment, the end of the drive rack 4 is provided with a convex shaft, which is rotatably inserted into the through hole in the middle of the movable gear 3. The other end of the movable gear 3 drives the drive gear 5 to rotate, and the drive gear 5 is rotatably mounted on the mounting base 1.

[0041] In one embodiment, a water distribution plate 6 is further included, and the drive gear 5 is connected to drive the water distribution plate 6 to rotate. Specifically, the rotating shaft of the water distribution plate 6 passes through the mounting base 1 and is connected to the drive gear 5.

[0042] In another embodiment, the stepless adjustment switching mechanism further includes a bracket 7 and a push button 8. The bracket 7 is disposed opposite to the mounting base 1 and clamps the movable rack 2, movable gear 3, drive rack 4, and drive gear 5, improving the installation stability of each component and preventing them from falling out of their working position during use. In this embodiment, the movable rack 2 is disposed on the bracket 7, and the push button 8 drives the bracket 7 to reciprocate. Preferably, the mounting base 1 has guide grooves 12 on both sides, and the bracket 7 has upwardly extending mounting plates on both sides, with guide strips 71 on the inner side of the mounting plates. The mounting base 1 and the bracket 7 are slidably assembled together via the guide grooves 12 and the guide strips 71.

[0043] Alternatively, in other embodiments, the bracket 7 is provided with a strip-shaped adjustment hole corresponding to the movement trajectory of the movable rack 2. The push button 8 is connected to and drives the movable rack 2 through the strip-shaped adjustment hole.

[0044] In use, the user drives the movable rack 2 to move relative to the fixed rack 11, and drives the movable gear 3 to roll along the fixed gear, thereby driving the drive rack 4 through the movable gear 3, and then driving the drive gear 5 to rotate, so as to drive the valve core to rotate and cut the flow.

[0045] This invention uses a movable gear 3 to form a lever. The lever arm length of the movable rack 2 driving the movable gear 3 to roll is twice the lever arm length of the movable gear 3 driving the drive rack 4 to move forward. That is, the force required for this invention to achieve the switching effect is half the force required by the traditional push switching mechanism, which greatly reduces the force required for switching and can avoid most adjustment transitions. In addition, it can also extend the stroke of the push drive component, thereby improving the accuracy of adjustment and switching, and is more suitable for some scenarios of adjusting water flow rate or mixing water ratio. Example 2

[0046] A shower head 9 employs the stepless adjustment switching mechanism described in Embodiment 1.

[0047] The shower head 9 includes a body 91 and a water outlet 92.

[0048] The main body 91 is provided with a water inlet channel 911 and several water outlet channels 912, and a shower valve core 913 is provided between the water inlet channel 911 and the water outlet channels 912. The mounting base 1 is disposed between the main body 91 and the water outlet 92, and the drive gear 5 is connected to drive the shower valve core 913 to switch the water inlet channel 911 to connect to different water outlet channels 912.

[0049] The mounting base 1 has several kinds of water passage holes 13 in the part between the body 91 and the water outlet 92, including water passage holes 13 of rotating water structure, and different water passage holes 13 are connected to different water outlet channels 912.

[0050] In this embodiment, the water outlet channel 912 has two channels: a spray water channel and a shower water channel. Correspondingly, the water passage 13 includes a rotating water passage 13 and a shower water passage 13. Through a stepless adjustment switching mechanism, the water flow can be switched between the spray water channel and the shower water channel to achieve spray water only (e.g., spray water). Figure 7 ) or shower water (such as Figure 8 Alternatively, by controlling the stepless adjustment switching mechanism, mixed water output can be achieved, simultaneously outputting either mist water or shower water. In this case, the water output from the shower head 9 consists of larger particle sizes (such as...). Figure 9 ).

[0051] In another embodiment, to improve the water output function of the shower head 9, the water inlet channel 911 of the main body 91 branches into a shower water inlet channel 914 and a top spray water inlet channel 915, and a top spray valve core 916 is provided between the shower water inlet channel 914 and the top spray water inlet channel 915. The shower water inlet channel 914 is connected to the water outlet channel 912 through the shower valve core 913. The main body 91 also includes a top spray water channel. The top spray water inlet channel 915 is connected to the top spray water channel.

[0052] The shower head 9 includes a rod-shaped housing 93 with strong integration. The stepless adjustment switching mechanism is installed on the handle of the rod-shaped housing 93. The head end of the rod-shaped housing 93 is provided with a top spray nozzle 931, which is connected to the top spray water channel.

[0053] In this embodiment, the top spray valve core 916 adopts a push-button structure, including a valve stem. The valve stem is equipped with a plug. Under normal conditions, under the action of a spring, the plug blocks the top spray water inlet channel 915, leaving the shower water inlet channel 914 in a normally open state. When top spray is needed, the valve stem is pressed, the plug opens the top spray water inlet channel 915, and blocks the shower water inlet channel 914. At this time, water flows out of the top spray nozzle 931 (e.g., Figure 10 When the user releases the valve stem, the valve stem returns to its initial state under the action of the spring, that is, the shower water inlet channel 914 is in the open state and the top spray water inlet channel 915 is in the closed state.

[0054] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. A continuously variable adjustment switching mechanism, characterized by, The installation base is provided with a fixed rack; the movable rack is arranged in parallel with the fixed rack and is arranged oppositely and in interval; the movable gear is arranged between the movable rack and the fixed rack and is engaged by teeth; the movable rack is moved relative to the fixed rack and drives the movable gear to roll along the fixed rack; one end of the driving rack is hinged to the rotating shaft of the movable gear and the other end drives the driving gear to rotate; the driving gear is connected to drive the water distribution disc to rotate; the rotating shaft of the water distribution disc penetrates through the installation base and is connected to the driving gear; the bracket is arranged oppositely to the installation base and clamps the movable rack, the movable gear, the driving rack and the driving gear; the movable rack is arranged on the bracket; the bracket is connected to the push button to move reciprocally or the bracket is provided with a strip-shaped adjusting hole corresponding to the moving track of the movable rack and the push button is connected to the movable rack through the strip-shaped adjusting hole. The end of the driving rack is provided with a convex shaft and is inserted into the through hole in the middle of the movable gear. The driving gear is rotatably installed on the installation base. The installation base is provided with guide grooves on both sides; the bracket is provided with installation plates extending upward on both sides; the inner side of the installation plate is provided with guide strips; the installation base and the bracket are assembled together through the guide grooves and the guide strips. The stepless adjustment switching mechanism comprises the installation base, the movable rack, the movable gear, the driving rack, the driving gear, the water distribution disc, the bracket and the push button. The body is provided with a water inlet channel and a plurality of water outlet channels; the water inlet channel and the water outlet channels are provided with a shower valve core; the installation base is arranged between the body and the water outlet nozzle; the driving gear is connected to drive the shower valve core to switch the water inlet channel to be communicated with different water outlet channels; the part of the installation base between the body and the water outlet nozzle is provided with a plurality of water passing holes, including a water passing hole of a rotary water structure, and different water passing holes are communicated with different water outlet channels.

2. A continuously variable adjustment switching mechanism according to claim 1, characterized in that The water inlet channel of the body is bifurcated to form a shower water inlet channel and a top spray water inlet channel; a top spray valve core is arranged between the shower water inlet channel and the top spray water inlet channel; the shower water inlet channel is communicated with the water outlet channel through the shower valve core; the body further comprises a top spray water channel; the top spray water inlet channel is communicated with the top spray water channel.

3. A continuously variable adjustment switching mechanism according to claim 1, wherein The stepless adjustment switching mechanism is installed in the handle part of the rod-shaped shell; the head part of the rod-shaped shell is provided with a top spray opening; the top spray opening is communicated with the top spray water channel.

4. A continuously variable adjustment switching mechanism according to claim 1, wherein ​ 5. A showerhead, characterized by ​ 6. The showerhead of claim 5, wherein ​ 7. A showerhead according to claim 6, wherein ​ 8. The showerhead of claim 7, wherein, ​

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