US-12616988-B2 - Kitchen showerhead and kitchen faucet

US12616988B2US 12616988 B2US12616988 B2US 12616988B2US-12616988-B2

Abstract

A kitchen showerhead and a kitchen faucet are disclosed. The kitchen showerhead includes a pressing valve, a piston cylinder, a first compression spring, and a showerhead body; the pressing valve has a valve body and a pressing rod, a water inlet and a water outlet are respectively arranged on both ends of the valve body, a water stop opening is arranged in a water passing cavity, the pressing rod is inserted into the water stop opening, and a pressing end and a water stop piston are respectively arranged on both ends of the pressing rod; and one end of the water stop piston facing away from the water stop opening and the piston cylinder form a hydraulic cavity, the water stop piston is provided with a water passing hole communicated with the hydraulic cavity, and the hydraulic cavity is communicated with the water inlet through the water passing hole.

Inventors

Weiqiang HUANG
Jian Hu

Assignees

BESTWARE HARDWARE PRODUCTION CO., LTD.

Dates

Publication Date: 20260505
Application Date: 20210528
Priority Date: 20201016

Claims (20)

1 . A kitchen showerhead, comprising: a pressing valve provided with a valve body and a pressing rod, wherein a water passing cavity is arranged in the valve body, a water inlet and a water outlet which are communicated with the water passing cavity are respectively arranged on both ends of the valve body, a water stop opening is arranged in the water passing cavity, the pressing rod is inserted into the water stop opening, one end of the pressing rod is provided with a pressing end penetrating through the valve body, and the other end of the pressing rod is provided with a water stop piston for closing the water stop opening; a piston cylinder arranged on the valve body, wherein the water stop piston is inserted into the piston cylinder, one end of the water stop piston facing away from the water stop opening and the piston cylinder form a hydraulic cavity, the water stop piston is provided with a water passing hole communicated with the hydraulic cavity, and the hydraulic cavity is communicated with the water inlet through the water passing hole; a first compression spring located in the hydraulic cavity, wherein one end of the first compression spring abuts against the water stop piston, and the other end of the first compression spring abuts against the piston cylinder; and a showerhead body arranged at the water outlet; wherein a middle portion of the pressing rod is provided with a conical section, a larger end of the conical section is connected with the water stop piston, and a smaller end of the conical section is connected with the pressing end.
2 . The kitchen showerhead according to claim 1 , wherein one side of the water stop piston facing the water stop opening is provided with a sealing plug for closing the water stop opening.
3 . The kitchen showerhead according to claim 1 , wherein an outer diameter of the larger end of the conical section is matched with an inner diameter of the water stop opening.
4 . The kitchen showerhead according to claim 1 , wherein the water stop piston is provided with an accommodating groove for accommodating the first compression spring, and the water passing hole is located in a groove wall of the accommodating groove.
5 . The kitchen showerhead according to claim 1 , wherein the showerhead body comprises a first valve seat, a second valve seat rotatably connected with the first valve seat, and a showerhead nozzle and a fan-shaped nozzle which are arranged on the second valve seat, the first valve seat is provided with a first input hole communicated with the water outlet and a first output hole communicated with the first input hole, and one side of the second valve seat facing the first output hole is provided with a second input hole communicated with the showerhead nozzle and a third input hole communicated with the fan-shaped nozzle; and when the second valve seat rotates, one of the second input hole and the third input hole is communicated with the first output hole.
6 . The kitchen showerhead according to claim 5 , wherein two first output holes are provided, two second input holes are provided and uniformly distributed around a rotating shaft of the second valve seat, and when one of the first output holes is communicated with one of the second input holes, the other one of the first output holes is communicated with the other one of the second input holes.
7 . The kitchen showerhead according to claim 5 , wherein the first output hole is provided with a first sealing groove, a sealing ring is arranged in the first sealing groove, a middle portion of the sealing ring is provided with a through hole, and a second compression spring for pressing the sealing ring to the second valve seat is arranged in the first sealing groove.
8 . The kitchen showerhead according to claim 5 , wherein one side of the first valve seat facing the second valve seat is provided with a blind hole, a positioning pin and a third compression spring driving the positioning pin to press to the second valve seat are arranged in the blind hole, and one end of the positioning pin facing the second valve seat is provided with a round top; when the round top is inserted into the second input hole, the first output hole is communicated with the third input hole; and when the round top is inserted into the third input hole, the first output hole is communicated with the second input hole.
9 . A kitchen showerhead, comprising: a pressing valve provided with a valve body and a pressing rod, wherein a water passing cavity is arranged in the valve body, a water inlet and a water outlet which are communicated with the water passing cavity are respectively arranged on both ends of the valve body, a water stop opening is arranged in the water passing cavity, the pressing rod is inserted into the water stop opening, one end of the pressing rod is provided with a pressing end penetrating through the valve body, and the other end of the pressing rod is provided with a water stop piston for closing the water stop opening; a piston cylinder arranged on the valve body, wherein the water stop piston is inserted into the piston cylinder, one end of the water stop piston facing away from the water stop opening and the piston cylinder form a hydraulic cavity, the water stop piston is provided with a water passing hole communicated with the hydraulic cavity, and the hydraulic cavity is communicated with the water inlet through the water passing hole; a first compression spring located in the hydraulic cavity, wherein one end of the first compression spring abuts against the water stop piston, and the other end of the first compression spring abuts against the piston cylinder; and a showerhead body arranged at the water outlet; wherein the water stop piston is provided with an accommodating groove for accommodating the first compression spring, and the water passing hole is located in a groove wall of the accommodating groove.
10 . The kitchen showerhead according to claim 9 , wherein one side of the water stop piston facing the water stop opening is provided with a sealing plug for closing the water stop opening.
11 . The kitchen showerhead according to claim 9 , wherein a middle portion of the pressing rod is provided with a conical section, a larger end of the conical section is connected with the water stop piston, and a smaller end of the conical section is connected with the pressing end; and wherein an outer diameter of the larger end of the conical section is matched with an inner diameter of the water stop opening.
12 . The kitchen showerhead according to claim 9 , wherein the showerhead body comprises a first valve seat, a second valve seat rotatably connected with the first valve seat, and a showerhead nozzle and a fan-shaped nozzle which are arranged on the second valve seat, the first valve seat is provided with a first input hole communicated with the water outlet and a first output hole communicated with the first input hole, and one side of the second valve seat facing the first output hole is provided with a second input hole communicated with the showerhead nozzle and a third input hole communicated with the fan-shaped nozzle; and when the second valve seat rotates, one of the second input hole and the third input hole is communicated with the first output hole.
13 . The kitchen showerhead according to claim 12 , wherein two first output holes are provided, two second input holes are provided and uniformly distributed around a rotating shaft of the second valve seat, and when one of the first output holes is communicated with one of the second input holes, the other one of the first output holes is communicated with the other one of the second input holes.
14 . The kitchen showerhead according to claim 12 , wherein the first output hole is provided with a first sealing groove, a sealing ring is arranged in the first sealing groove, a middle portion of the sealing ring is provided with a through hole, and a second compression spring for pressing the sealing ring to the second valve seat is arranged in the first sealing groove.
15 . A kitchen showerhead, comprising: a pressing valve provided with a valve body and a pressing rod, wherein a water passing cavity is arranged in the valve body, a water inlet and a water outlet which are communicated with the water passing cavity are respectively arranged on both ends of the valve body, a water stop opening is arranged in the water passing cavity, the pressing rod is inserted into the water stop opening, one end of the pressing rod is provided with a pressing end penetrating through the valve body, and the other end of the pressing rod is provided with a water stop piston for closing the water stop opening; a piston cylinder arranged on the valve body, wherein the water stop piston is inserted into the piston cylinder, one end of the water stop piston facing away from the water stop opening and the piston cylinder form a hydraulic cavity, the water stop piston is provided with a water passing hole communicated with the hydraulic cavity, and the hydraulic cavity is communicated with the water inlet through the water passing hole; a first compression spring located in the hydraulic cavity, wherein one end of the first compression spring abuts against the water stop piston, and the other end of the first compression spring abuts against the piston cylinder; and a showerhead body arranged at the water outlet; wherein the showerhead body comprises a first valve seat, a second valve seat rotatably connected with the first valve seat, and a showerhead nozzle and a fan-shaped nozzle which are arranged on the second valve seat, the first valve seat is provided with a first input hole communicated with the water outlet and a first output hole communicated with the first input hole, and one side of the second valve seat facing the first output hole is provided with a second input hole communicated with the showerhead nozzle and a third input hole communicated with the fan-shaped nozzle; and when the second valve seat rotates, one of the second input hole and the third input hole is communicated with the first output hole.
16 . The kitchen showerhead according to claim 15 , wherein one side of the water stop piston facing the water stop opening is provided with a sealing plug for closing the water stop opening.
17 . The kitchen showerhead according to claim 15 , wherein a middle portion of the pressing rod is provided with a conical section, a larger end of the conical section is connected with the water stop piston, and a smaller end of the conical section is connected with the pressing end; wherein an outer diameter of the larger end of the conical section is matched with an inner diameter of the water stop opening.
18 . The kitchen showerhead according to claim 15 , wherein two first output holes are provided, two second input holes are provided and uniformly distributed around a rotating shaft of the second valve seat, and when one of the first output holes is communicated with one of the second input holes, the other one of the first output holes is communicated with the other one of the second input holes.
19 . The kitchen showerhead according to claim 15 , wherein the first output hole is provided with a first sealing groove, a sealing ring is arranged in the first sealing groove, a middle portion of the sealing ring is provided with a through hole, and a second compression spring for pressing the sealing ring to the second valve seat is arranged in the first sealing groove.
20 . The kitchen showerhead according to claim 15 , wherein one side of the first valve seat facing the second valve seat is provided with a blind hole, a positioning pin and a third compression spring driving the positioning pin to press to the second valve seat are arranged in the blind hole, and one end of the positioning pin facing the second valve seat is provided with a round top; when the round top is inserted into the second input hole, the first output hole is communicated with the third input hole; and when the round top is inserted into the third input hole, the first output hole is communicated with the second input hole.

Description

CROSS-REFERENCE TO RELATION APPLICATIONS This application is a national stage filing under 35 U.S.C. § 371 of international application number PCT/CN2021/096902, filed May 28, 2021, which claims priority to Chinese patent application No. 202011107302.0 filed Oct. 16, 2020. The contents of these applications are incorporated herein by reference in their entirety. TECHNICAL FIELD The disclosure relates to the technical field of kitchen accessories, and particularly to a kitchen showerhead and a kitchen faucet. BACKGROUND Kitchen showerhead is widely used in commercial and industrial kitchens, such as kitchens of hotels, restaurants and food processing plants, and is generally mounted on a faucet in kitchen for cleaning kitchen utensils, such as pots and pans, and washing vegetables. The kitchen showerhead is generally provided with a pressing switch valve to control water spraying or water stopping of the kitchen showerhead. However, existing pressing switch valves have poor hand feeling, quick rebound, large noise, and easily damaged precise valve core part in the pressing switch valve, resulting in water leakage of the kitchen showerhead, so that it is necessary to replace and maintain the pressing switch valve frequently, thereby having high maintenance costs. SUMMARY The disclosure aims to solve at least one of the technical problems in the existing technology. Therefore, the disclosure provides a kitchen showerhead, which has better hand feeling, higher durability and a low maintenance cost. The disclosure further provides a kitchen faucet comprising the kitchen showerhead above. The kitchen showerhead according to an embodiment in a first aspect of the disclosure comprises a pressing valve, a piston cylinder, a first compression spring and a showerhead body, wherein the pressing valve is provided with a valve body and a pressing rod, a water passing cavity is arranged in the valve body, a water inlet and a water outlet which are communicated with the water passing cavity are respectively arranged on both ends of the valve body, a water stop opening is arranged in the water passing cavity, the pressing rod is inserted into the water stop opening, one end of the pressing rod is provided with a pressing end penetrating through the valve body, and the other end of the pressing rod is provided with a water stop piston for closing the water stop opening; the piston cylinder is arranged on the valve body, the water stop piston is inserted into the piston cylinder, one end of the water stop piston facing away from the water stop opening and the piston cylinder form a hydraulic cavity, the water stop piston is provided with a water passing hole communicated with the hydraulic cavity, and the hydraulic cavity is communicated with the water inlet through the water passing hole; the first compression spring is located in the hydraulic cavity, one end of the first compression spring abuts against the water stop piston, and the other end of the first compression spring abuts against the piston cylinder; and the showerhead body is arranged at the water outlet. The kitchen showerhead according to an embodiment in the first aspect of the disclosure has at least the following beneficial effects. One end of the pressing rod of the pressing valve is provided with the water stop piston, and the water stop piston is inserted into a piston sleeve of a valve seat to form the hydraulic cavity; and the hydraulic cavity is cooperated with the water passing hole, which can reduce a speed at which the pressing rod is pressed and a speed at which the pressing rod is pushed back by the first compression spring, and make a moving speed of the pressing rod more uniform, so as to improve pressing hand feeling of the pressing valve and use hand feeling, and moreover, an impact force between the water stop piston and the water stop opening can be reduced, so that noise is reduced, the water stop piston and the water stop opening are protected, and abrasions of the water stop piston and the water stop opening are reduced, so as to reduce maintenance times and maintenance costs. According to an embodiment in the first aspect of the disclosure, one side of the water stop piston facing the water stop opening is provided with a sealing plug for closing the water stop opening. According to an embodiment in the first aspect of the disclosure, a middle portion of the pressing rod is provided with a conical section, a larger end of the conical section is connected with the water stop piston, and a smaller end of the conical section is connected with the pressing end. According to an embodiment in the first aspect of the disclosure, an outer diameter of the larger end of the conical section is matched with an inner diameter of the water stop opening. According to an embodiment in the first aspect of the disclosure, the water stop piston is provided with an accommodating groove for accommodating the first compression spring, and the water passing ho