Control valve box for faucet

Abstract

The utility model discloses a control valve box for a water faucet, which comprises a valve box, a valve rod and a valve rod, the valve body is arranged in the valve body cavity, the valve body is provided with a pilot cavity, the pilot cavity is communicated with a first bypass and a second bypass, the valve body is provided with a threaded cavity, the bottom of the threaded cavity penetrates through the second bypass and is communicated with the pilot cavity, a screw rod is arranged in the threaded cavity, and the first bypass is communicated with the second bypass. When the tail end of the screw rod penetrates through the second bypass and is located at the bottom of the threaded cavity, water in the second bypass is blocked; the electromagnetic valve is used for controlling circulation or blocking of water flow in the first bypass; one end of the water outlet connector is provided with threads, and the other end of the water outlet connector is inserted into the water outlet end of the valve body in a sealed and rotating mode. According to the water faucet, circulation and blocking of the second bypass are adjusted by arranging the screw rod, circulation of the second bypass can be achieved by screwing the screw rod outwards when power is off, and therefore normal use of the water faucet is achieved when the power is off.

Description

Technical Field

[0001] This utility model relates to the field of sensor valve technology. More specifically, this utility model relates to a control valve box for a faucet. Background Technology

[0002] Most faucets currently on the market are either manual or automatic sensor faucets. Manual faucets are operated manually to open or close the valve, while sensor faucets use sensors to detect human movement. The controller then uses the sensor's signal to control the solenoid valve to open or close the valve automatically. Existing sensor valve boxes are usually connected in series with the faucet's mechanical switch valve. If the sensor valve box cannot be opened due to low battery power, the faucet cannot be used normally. Utility Model Content

[0003] One object of this invention is to solve at least the problems described above and to provide at least the advantages that will be explained later.

[0004] Another objective of this invention is to provide a control valve box for a faucet, which uses a screw to adjust the flow and blockage of a second bypass. When the power is off, the second bypass can be opened by turning the screw outward, thus enabling the faucet to be used normally when the power is off.

[0005] To achieve these objectives and other advantages of this utility model, a control valve box for a faucet is provided, comprising:

[0006] A valve body is disposed within the valve body cavity. The valve body has a pilot cavity, a first bypass, and a second bypass. The pilot cavity communicates with the first bypass and the second bypass. The valve body has a threaded cavity. The inner end of the threaded cavity passes through the second bypass and communicates with the pilot cavity. A screw is disposed within the threaded cavity. When the inner end of the screw passes through the second bypass and is located at the inner end of the threaded cavity, the water flow in the second bypass is blocked by the screw. When the inner end of the screw moves away from the inner end of the threaded cavity until the screw separates from the second bypass, the water flow in the second bypass can proceed.

[0007] A solenoid valve is used to control the flow or blockage of water in the first bypass.

[0008] The water outlet connector has a threaded end and a sealed, rotatable insertion end into the water outlet of the valve body.

[0009] Preferably, the valve box includes a box body and a cover that is detachably connected to the box body by screws.

[0010] Preferably, the valve box is provided with an electrical interface for connecting to an external controller.

[0011] Preferably, the outer wall of the outlet end of the valve body is provided with two openings, and a pull-out limiting card is provided in the opening. The outlet connector is recessed to form an annular receiving groove, which is used to accommodate the limiting card to fix the outlet connector.

[0012] This utility model has at least the following beneficial effects:

[0013] This invention uses a screw to regulate the flow and blockage of the second bypass. When the power is off, turning the screw outward allows the second bypass to flow, thus enabling the faucet to function normally even when the power is off. The invention also uses a limiting clip to effectively reduce the likelihood of the water outlet connector detaching from the valve body, improving connection stability. Furthermore, the invention provides a water outlet connector that can be inserted into the outlet end of the valve body, facilitating the connection between the water outlet pipe and the valve body. Compared to existing technologies that use a screw connection to directly connect the water outlet pipe to the outlet end of the valve body, which can cause directional issues after the water outlet pipe is fixed during installation, affecting the faucet's operation, this invention uses a rotatable water outlet connector, allowing the water outlet pipe to rotate relative to the outlet end of the valve body, thus overcoming the directional problem.

[0014] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a faucet control valve box according to one of the technical solutions of this utility model;

[0016] Figure 2 This is a schematic diagram of the valve body according to one of the technical solutions of this utility model;

[0017] Figure 3 This is a schematic diagram of the valve body according to one of the technical solutions of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of a faucet control valve box according to one of the technical solutions of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of a faucet control valve box according to one of the technical solutions of this utility model;

[0020] Figure 6 This is a schematic diagram of the valve body according to one of the technical solutions of this utility model. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0022] like Figure 1-6 As shown, this utility model provides a control valve box for a faucet, comprising:

[0023] Valve box 1, which has a valve body cavity (valve box 1 serves as the external protective structure of the entire control valve, providing a stable installation and fixing space for internal components).

[0024] A valve body 4 is disposed within the valve body cavity. The valve body has a pilot cavity 43, a first bypass, and a second bypass. The pilot cavity 43 is connected to the first bypass and the second bypass. A threaded cavity 8 is provided within the valve body 4. The inner end of the threaded cavity 8 passes through the second bypass 11 and is connected to the pilot cavity 43. A screw 9 is provided within the threaded cavity 8. When the inner end of the screw 9 passes through the second bypass 11 and is located at the inner end of the threaded cavity 8, the water flow in the second bypass 11 is blocked by the screw 9. When the inner end of the screw 9 moves away from the inner end of the threaded cavity 8 until the screw 9 separates from the second bypass 11, the water flow in the second bypass 11 can pass through.

[0025] Solenoid valve 3 is used to control the flow or blockage of water in the first bypass.

[0026] The water outlet connector 5 has a threaded end for connecting to the water outlet pipe, and the other end is rotatably and sealed to the water outlet end of the valve body 4 (the water outlet connector can rotate 360° around its axis. One specific implementation of the sealed rotatable connection is as follows: the end side wall of the water outlet connector is recessed to form an annular groove, and the inner side wall of the water outlet end of the valve body is coaxially provided with a sealing ring 31. The sealing ring 31 is located in the groove, and the inner diameter of the sealing ring 31 is slightly smaller than the diameter of the bottom of the groove so that the sealing ring 31 abuts against the bottom of the groove to achieve a seal).

[0027] In this technical solution, the valve box 1 serves as the outer shell of the entire control valve. The valve box 1 contains a valve body cavity for installing and fixing the valve body 4 and other control components. The valve body 4, located within the valve body cavity, is the core component for controlling water flow. The valve body 4 has an inlet end 6 and an outlet end 7, connected by a pilot cavity 43. The valve body 4 has a guide port communicating with the pilot cavity 43, and a pilot diaphragm 42 is provided at the guide port to seal it (the pilot diaphragm 42 has a balance hole and a spring 45). The function of the balancing orifice is to balance the pressure on both sides of the pilot diaphragm 42, so that the pilot diaphragm 42 can respond more sensitively to pressure changes. The specific value is determined according to factors such as the size of the pilot cavity 43 and the water flow pressure. The spring 45 is made of stainless steel, which has good elasticity and corrosion resistance. Its elastic coefficient is calculated based on parameters such as the area and thickness of the pilot diaphragm 42 and the required sealing pressure. This part of the technology is a mature existing technology and is widely used in similar hydraulic or pneumatic control valves. The guide port is connected to the outlet end, and the channel formed by the two is the second bypass 11. The pilot cavity 43 is connected to the pilot hole 44, which is connected to the outlet end, and the channel formed by the two is the first bypass 10. The flow or blockage between the pilot hole 44 and the pilot cavity 43 is controlled by the solenoid valve 3, which in turn indirectly controls the flow or blockage of the water flow in the first bypass. Specifically, when the sealing plug 41 of the solenoid valve 3 blocks the pilot hole 44 (i.e., the solenoid valve 3 is closed), the first bypass 10... The water flow inside is blocked. When the sealing plug 41 of the solenoid valve 3 moves away from the pilot hole 44 (i.e., the solenoid valve is open), the water flow in the first bypass 10 can flow. The arrangement of the first bypass 10 and the second bypass 11 allows the water flow to flow in different paths. The screw 9 has a sealing ring and is screwed into the threaded cavity 8 of the valve body 4. The screw 9 can move along its axial direction in the threaded cavity 8 of the valve body 4, thereby controlling the flow and blockage of the water flow in the second bypass 11 and the outlet 7 in the valve body 4. The sealing ring 31 is made of rubber, which has good elasticity and sealing performance. Its Shore hardness is between 50 and 70, which can ensure the sealing effect while adapting to a certain degree of rotation and friction, ensuring a long-term stable sealing connection.

[0028] During use, when the solenoid valve 3 is de-energized (at which time the solenoid valve closes the pilot port 44) and mechanical drainage is required, screw 9 is turned until it separates from the second bypass 11. Water enters the pilot chamber 43 from the inlet end 6. Due to the reduced pressure in the pilot chamber 43 (the balance hole is connected to the second bypass 11 through the threaded cavity, and the pressure in the pilot chamber 43 is reduced), the pilot diaphragm 42 separates from the guide port under the elastic force of the spring 45. Water enters the outlet end (second bypass 11) from the guide port to achieve emergency water discharge. When the solenoid valve 3 is working normally and water needs to be discharged induction, screw 9 is turned inward to block the connection between the second bypass 11 and the outlet end 7. Water enters the pilot port from the inlet end 6 and then enters the outlet end 7 (first bypass 10) from the pilot port to achieve induction drainage.

[0029] By adopting this technical solution, the present invention uses a screw 9 to adjust the flow and blockage of the second bypass 11. When the power is off, the second bypass 11 can be opened by turning the screw 9 outward, so that the faucet can be used normally when the power is off. The present invention also uses a water outlet connector 5 that can be inserted into the water outlet end of the valve body 4 to facilitate the connection between the water outlet pipe and the valve body 4.

[0030] In another technical solution, the valve box 1 includes a box body 101 and a cover 102 detachably connected to the box body 101 by screws. This technical solution secures the valve body 4 and the solenoid valve 3. The cover 102 facilitates comprehensive inspection, repair, or replacement of components of the internal valve body 4 and solenoid valve 3, effectively reducing maintenance costs and difficulty.

[0031] In another technical solution, the valve box 1 is equipped with a wire interface. This interface adopts a standard electrical connection standard (such as a common waterproof, pluggable electrical connection interface, conforming to the IP67 protection level standard, which can effectively prevent water splashes, dust and other impurities from entering the interface, ensuring the stability and safety of the electrical connection). This interface is used to connect to an external controller, thereby realizing stable signal transmission and precise control command interaction between the solenoid valve 3 and the external controller. This technical solution achieves the connection between the solenoid valve 3 and the external controller.

[0032] The valve body 4 has two through-holes on its outlet sidewall, spaced apart. Each opening contains a retractable retaining clip 30. The outlet connector sidewall is recessed to form an annular receiving groove, which accommodates the end of the retaining clip to secure the outlet connector 5. By employing this technical solution, the present invention effectively reduces the likelihood of the outlet connector 5 detaching from the valve body 4, thus improving connection stability, through the use of the retaining clip 30.

[0033] The number of devices and processing scale described herein are for the purpose of simplifying the description of this utility model. Applications, modifications, and variations of the control valve box for faucets according to this utility model will be readily apparent to those skilled in the art.

[0034] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A control valve box for a faucet, characterized by, The utility model relates to a valve box, a valve body cavity is arranged in the valve box, a valve body is arranged in the valve body cavity, a pilot cavity, a first bypass and a second bypass are arranged in the valve body, the pilot cavity is communicated with the first bypass and the second bypass, a threaded cavity is arranged in the valve body, the inner end of the threaded cavity passes through the second bypass and is communicated with the pilot cavity, a screw rod is arranged in the threaded cavity, when the inner end of the screw rod passes through the second bypass and is located at the inner end of the threaded cavity, the water flow in the second bypass is blocked by the screw rod, when the inner end of the screw rod moves away from the inner end of the threaded cavity and the screw rod is separated from the second bypass, the water flow in the second bypass can flow. An electromagnetic valve is used for controlling the flow or blockage of the water flow in the first bypass. A water outlet connector is provided with a thread at one end to connect a water outlet pipe, and the other end is sealed and rotatably inserted into the water outlet end of the valve body. The valve box comprises a box body and a cover body detachably connected to the box body by screws. The valve box is provided with a wire interface for connecting with an external controller.

2. The control valve box for a faucet as recited in claim 1, wherein The water outlet end side wall of the valve body is provided with two openings, a pullable limiting card is arranged in the openings, the water outlet connector is recessed to form an annular accommodating groove, and the accommodating groove is used for accommodating the limiting card to fix the water outlet connector.

3. The control valve box for a faucet as recited in claim 1, wherein ​ 4. The control valve box for a faucet as recited in claim 3, wherein ​

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