Bathroom constant-temperature faucet control handle

Abstract

The utility model provides a bathroom constant-temperature faucet control handle, and relates to the field of constant-temperature faucets. A main valve is installed on the lower portion of the right side of the constant-temperature faucet body, and a main valve control handle is fixedly installed at the right end of a valve rod of the main valve. An automatic valve closing mechanism is arranged on the right side of the constant-temperature faucet body and located on the rear portion of the main valve control handle. Through cooperation of the flow sensor, the automatic valve closing mechanism, the human body induction switch and the controller, after people use the faucet, even if a careless person forgets to close the main valve on the faucet, the main valve can be automatically closed, the phenomenon that a large number of water sources are wasted is avoided, and economic losses brought to people are avoided; the problems that after a traditional bathroom constant-temperature faucet is used up, part of careless people easily forget to close a valve on the faucet, a large number of water sources are wasted, and economic losses are brought to people are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of thermostatic faucets, in particular to a control handle for a bathroom thermostatic faucet. Background Art

[0002] Thermostatic faucets, also known as thermostatic faucets or thermostatic mixing faucets, are a special type of faucet. Its function is to automatically mix cold water and hot water into warm water of a preset temperature. Thermostatic faucets can automatically adjust the temperature of the water to ensure that the water flowing out of the faucet has a certain temperature, especially in winter, providing great convenience and comfort. Thermostatic faucets are suitable for occasions that require high temperature control accuracy, such as bathrooms.

[0003] When using traditional bathroom thermostatic faucets, the functions of releasing and cutting off water are generally achieved by turning the control handle on the valve. However, after using the thermostatic faucet, some careless people tend to forget to close the valve on the faucet, resulting in a large amount of water waste and causing economic losses to people. Utility Model Content

[0004] The disclosed embodiment relates to a control handle for a bathroom thermostatic faucet, which, through the cooperation of a flow sensor, an automatic valve closing mechanism, a human body sensing switch and a controller, can automatically close the main valve when people forget to close the main valve after use and leave the front of the thermostatic faucet body. Then, even if a careless person forgets to close the main valve on the faucet, the main valve can be automatically closed, thereby avoiding the phenomenon of wasting a large amount of water resources and avoiding economic losses to people.

[0005] In a first aspect of the present disclosure, a control handle for a bathroom thermostatic faucet is provided, which specifically includes: a thermostatic faucet body; a main valve is installed at the lower right part of the thermostatic faucet body, and a main valve control handle is fixedly installed at the right end of the valve stem of the main valve; an automatic valve closing mechanism is arranged at the rear of the main valve control handle on the right side of the thermostatic faucet body; a human body sensing switch and a controller are installed on the front end surface of the thermostatic faucet body, and the human body sensing switch is located below the controller; a flow sensor is arranged at the water outlet on the thermostatic faucet body.

[0006] In at least some embodiments, a fixing column is fixedly connected to the center of the right end surface of the main valve control handle, and the outer right end of the fixing column is fixedly connected to the inner ring of the one-way bearing, and a gear is fixedly installed on the outer ring of the one-way bearing.

[0007] In at least some embodiments, the automatic valve closing mechanism includes an electric push rod, a driving rack, a C-shaped pressing rod, a retraction control switch, and a guiding sliding sleeve. The electric push rod is fixedly installed on the right end face of the constant temperature faucet body, and the lower end of the telescopic rod of the electric push rod is fixedly installed with a driving rack. The lower part of the rear end face of the driving rack is fixedly connected with a C-shaped pressing rod, and the C-shaped pressing rod is externally slidably connected with a guiding sliding sleeve fixed on the rear end face of the electric push rod. The guiding sliding sleeve is fixed on the rear end face of the electric push rod. The retraction control switch is installed on the upper end face of the electric push rod, and the electric push rod, the retraction control switch, the flow sensor, and the human body induction switch are all electrically connected to the controller.

[0008] In at least some embodiments, when the telescopic rod of the electric push rod drives the driving rack to move downward to the limit position, the driving rack meshes with the gear, and the driving rack drives the gear, the outer ring of the one-way bearing, the inner ring of the one-way bearing, the fixed column, and the main valve control handle to rotate clockwise by ninety degrees. At this time, the main valve will be in the closed state, and during the downward movement of the driving rack, it will drive the C-shaped pressing rod to move downward. When the driving rack moves downward to the limit position, the upper end of the C-shaped pressing rod presses the button on the retraction control switch, thereby transmitting the retraction command to the controller, and then the controller controls the telescopic rod of the electric push rod to perform a retraction operation, thereby driving the driving rack to move upward back to its original position.

[0009] In at least some embodiments, when the telescopic rod of the electric push rod drives the driving rack to move upward to the limit position, the driving rack is in a separated state from the gear.

[0010] In at least some embodiments, the rotation angle of the main valve control handle is ninety degrees. When the upper end of the main valve control handle tilts forward by forty-five degrees, the main valve is in the open state, and when the upper end of the main valve control handle tilts backward by forty-five degrees, the main valve is in the closed state.

[0011] In at least some embodiments, a flow regulating valve is installed on the upper left side of the constant temperature faucet body, and a fine-tuning mechanism is installed at the left end of the valve stem of the flow regulating valve. The fine-tuning mechanism includes an adjusting worm, an adjusting worm gear, a rotating handwheel, and an indicating arrow. The adjusting worm is rotatably connected to the left side of the constant temperature faucet body through a bracket. The adjusting worm gear is fixedly installed at the left end of the valve stem of the flow regulating valve, and the adjusting worm gear meshes with the adjusting worm. The rotating handwheel is fixedly installed at the front end of the adjusting worm, and a rotating handle is rotatably connected to the edge of the front end face of the rotating handwheel.

[0012] The present utility model provides a control handle for a bathroom constant temperature faucet, having the following beneficial effects:

[0013] 1. Through the cooperation of flow sensor, automatic valve closing mechanism, human body sensing switch and controller, when people forget to close the main valve after use, the main valve will be automatically closed after they leave the front of the thermostatic faucet. Then, even if careless people forget to close the main valve on the faucet, the main valve can be closed automatically, avoiding the phenomenon of wasting a lot of water resources and avoiding economic losses to people.

[0014] 2. Through the setting of the fine-tuning mechanism, the water output of the faucet main body outlet can be adjusted according to needs. When adjusting, you only need to manually turn the handwheel to rotate the adjusting worm, adjusting worm wheel and the valve stem of the flow regulating valve, thereby completing the adjustment of the water output of the faucet main body, so that the regulation is more precise when using small water flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0016] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0017] In the attached picture:

[0018] Figure 1 A schematic diagram showing the structure of the first perspective of the present application is shown;

[0019] Figure 2 A schematic diagram showing the structure of the second viewing angle of the present application is shown;

[0020] Figure 3 A schematic diagram of the structure of the main valve control handle, fixed column, one-way bearing and gear of the present application is shown;

[0021] Figure 4 The schematic diagram of the structure of the automatic valve closing mechanism of the present application is shown;

[0022] Figure 5 It shows a structural schematic diagram of the main valve control handle of the present application in a forward rotating state;

[0023] Figure 6 It shows a structural schematic diagram of the main valve control handle of the present application in a backward rotating state;

[0024] Figure 7 Shown is a system block diagram of the present application.

[0025] Reference numerals list

[0026] 1. Thermostatic faucet body; 101. Main valve; 102. Flow regulating valve; 103. Flow sensor;

[0027] 2. Main valve control handle; 201. Fixed column; 202. One-way bearing; 203. Gear;

[0028] 3. Automatic valve closing mechanism; 301. Electric push rod; 302. Driving rack; 303. U-shaped pressing rod; 304. Retraction control switch; 305. Guide sleeve;

[0029] 4. Fine adjustment mechanism; 401. Adjusting worm; 402. Adjusting worm wheel; 403. Turning hand wheel; 404. Indicating arrow;

[0030] 5. Human body induction switch;

[0031] 6. Controller. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Example 1: Please refer to Figures 1 to 7 :

[0034] The utility model proposes a control handle for a thermostatic faucet for a bathroom, comprising: a thermostatic faucet body 1; a main valve 101 is installed at the lower right side of the thermostatic faucet body 1, and a main valve control handle 2 is fixedly installed at the right end of the valve stem of the main valve 101; an automatic valve closing mechanism 3 is arranged at the rear of the main valve control handle 2 on the right side of the thermostatic faucet body 1; a human body sensing switch 5 and a controller 6 are installed on the front end surface of the thermostatic faucet body 1, and the human body sensing switch 5 is located below the controller 6, and the model of the human body sensing switch 5 is: HC-SR501; a flow sensor 103 is arranged at the water outlet on the thermostatic faucet body 1, and the model of the flow sensor 103 is: YF-S201, which is used to detect water flow;

[0035] A fixed column 201 is fixedly connected to the center of the right end face of the main valve control handle 2, and the outer part of the right end of the fixed column 201 is fixedly connected to the inner ring of a one-way bearing 202, and a gear 203 is fixedly installed on the outer part of the outer ring of the one-way bearing 202; through the setting of the one-way bearing 202, when the driving rack 302 moves upward, even if the driving rack 302 drives the gear 203 and the outer ring of the one-way bearing 202 to rotate counterclockwise, but since the one-way bearing 202 can only rotate in one direction, the inner ring of the one-way bearing 202 will not be able to rotate at this time, so the phenomenon that the automatic valve closing mechanism 3 drives the main valve control handle 2 to rotate counterclockwise is avoided.

[0036] The automatic valve closing mechanism 3 includes an electric push rod 301, a driving rack 302, a U-shaped pressing rod 303, a retraction control switch 304 and a guiding sliding sleeve 305. The electric push rod 301 is fixedly installed on the right end face of the constant temperature faucet main body 1, and the lower end of the telescopic rod of the electric push rod 301 is fixedly installed with the driving rack 302; the lower part of the rear end face of the driving rack 302 is fixedly connected with the U-shaped pressing rod 303, and the U-shaped pressing rod 303 is slidably connected to the guiding sliding sleeve 305 fixed on the rear end face of the electric push rod 301, and the guiding sliding sleeve 305 is fixed on the rear end face of the electric push rod 301; a retraction control switch 304 is installed on the upper end face of the electric push rod 301, and the electric push rod 301, the retraction control switch 304, the flow sensor 103 and the human body induction switch 5 are all electrically connected to the controller 6; through the setting of the automatic valve closing mechanism 3, it is used to drive the main valve control handle 2 to rotate clockwise.

[0037] When the telescopic rod of the electric push rod 301 drives the driving rack 302 to move downward to the limit position, the driving rack 302 meshes with the gear 203, and the driving rack 302 drives the gear 203, the outer ring of the one-way bearing 202, the inner ring of the one-way bearing 202, the fixed column 201 and the main valve control handle 2 to rotate clockwise by 90 degrees. At this time, the main valve 101 will be in the closed state, and during the downward movement of the driving rack 302, it will drive the U-shaped pressing rod 303 to move downward. When the driving rack 302 moves downward to the limit position, the upper end of the U-shaped pressing rod 303 presses the button on the retraction control switch 304, thereby transmitting the retraction command to the controller 6, and then the controller 6 controls the telescopic rod of the electric push rod 301 to retract, thereby driving the driving rack 302 to move upward back to the original position.

[0038] When the telescopic rod of the electric push rod 301 drives the driving rack 302 to move upward to the limit position, the driving rack 302 is in a separated state from the gear 203, which is convenient for people to manually rotate the main valve control handle 2.

[0039] The rotation angle of the main valve control handle 2 is ninety degrees. When the upper end of the main valve control handle 2 tilts forward forty-five degrees, the main valve 101 is in an open state, and when the upper end of the main valve control handle 2 tilts backward forty-five degrees, the main valve 101 is in a closed state.

[0040] Embodiment 2, based on embodiment 1, as Figure 1 and Figure 2 As shown, a flow regulating valve 102 is installed on the upper left side of the thermostatic faucet body 1, and a fine-tuning mechanism 4 is installed on the left end of the valve stem of the flow regulating valve 102; the fine-tuning mechanism 4 includes an adjusting worm 401, an adjusting worm wheel 402, a rotating hand wheel 403 and an indicating arrow 404, the adjusting worm 401 is rotatably connected to the left side of the thermostatic faucet body 1 through a bracket, the adjusting worm wheel 402 is fixedly installed on the left end of the valve stem of the flow regulating valve 102, and the adjusting worm wheel 402 is meshed with the adjusting worm 401; a rotating hand wheel 403 is fixedly installed at the front end of the adjusting worm 401, and a rotating handle is rotatably connected at the edge of the front end surface of the rotating hand wheel 403; through the setting of the fine-tuning mechanism 4, the water output of the water outlet of the thermostatic faucet body 1 can be adjusted as needed, so that the regulation is more precise when using a small water flow.

[0041] The working principle of this embodiment is as follows: when in use, people walk in front of the thermostatic faucet body 1, the human body sensing switch 5 senses the signal of the human body, and then transmits the signal of the human body to the controller 6, and then people manually turn the upper end of the main valve control handle 2 forward (counterclockwise), thereby opening the main valve 101, so that the water flow automatically mixed into a preset temperature (this is an existing mature technology and will not be repeated) is discharged through the flow regulating valve 102, the water outlet on the thermostatic faucet body 1 and the water outlet of the flow sensor 103 for people to use.

[0042] When people forget to close the main valve 101 after use, water still flows out through the outlet of the flow sensor 103, and then the flow sensor 103 detects the water flow in real time and transmits the water flow signal to the controller 6. Then, after people leave the front of the thermostatic faucet body 1, the human body sensing switch 5 cannot sense the signal of the human body. Then, the controller 6 will control the telescopic rod of the electric push rod 301 to move the driving rack 302 downward to the limit position, and the driving rack 302 will mesh with the gear 203 during the downward movement. Then, the driving rack 302 will rotate ninety degrees clockwise with the gear 203, the outer ring of the one-way bearing 202, the inner ring of the one-way bearing 202, the fixing column 201 and the main valve control handle 2 to close the main valve 101. Then, even if a careless person forgets to close the main valve 101 on the faucet, the main valve 101 can be automatically closed.

[0043] When people finish using the faucet and actively close the main valve 101 through the main valve control handle 2, the flow sensor 103 will detect a signal that the water flow has stopped, and then transmit this signal to the controller 6. After people leave the front of the thermostatic faucet body 1, even if the controller 6 receives the signal that people have left through the human body sensing switch 5, it cannot control the extension of the telescopic rod of the electric push rod 301, because the controller 6 does not receive the signal that there is water flow inside the flow sensor 103 at this time. Therefore, the conditions for the telescopic rod of the electric push rod 301 to extend downward must meet two conditions (the first is that people leave the front of the thermostatic faucet body 1, and the second is that there must be water flowing inside the flow sensor 103) before it can be triggered, which effectively avoids the phenomenon that the telescopic rod of the electric push rod 301 extends downward after people actively close the main valve 101, thereby improving the reliability of the main valve control handle 2 when in use.

[0044] In this article, there are a few points to note:

[0045] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0046] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0047] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. Bathroom thermostatic faucet control handle, including: Constant temperature faucet body (1); a main valve (101) is installed on the lower right side of the constant temperature faucet body (1), and a main valve control handle (2) is fixedly installed at the right end of the valve stem of the main valve (101); characterized in that an automatic valve closing mechanism (3) is arranged at the rear of the main valve control handle (2) on the right side of the constant temperature faucet body (1); a human body induction switch (5) and a controller (6) are installed on the front end face of the constant temperature faucet body (1), and the human body induction switch (5) is located below the controller (6); a flow sensor (103) is arranged at the water outlet of the constant temperature faucet body (1).

2. The bathroom thermostatic faucet control handle according to claim 1, characterized in that: A fixed column (201) is fixedly connected to the center of the right end face of the main valve control handle (2), and the outer part of the right end of the fixed column (201) is fixedly connected to the inner ring of a one-way bearing (202), and a gear (203) is fixedly installed on the outer part of the outer ring of the one-way bearing (202).

3. The bathroom thermostatic faucet control handle according to claim 2, characterized in that: The automatic valve closing mechanism (3) includes an electric push rod (301), a driving rack (302), a U-shaped pressing rod (303), a retraction control switch (304) and a guiding sliding sleeve (305). The electric push rod (301) is fixedly installed on the right end face of the constant temperature faucet body (1), and the lower end of the telescopic rod of the electric push rod (301) is fixedly installed with the driving rack (302); the lower part of the rear end face of the driving rack (302) is fixedly connected with the U-shaped pressing rod (303), and the U-shaped pressing rod (303) is slidably connected with the guiding sliding sleeve (305) fixed on the rear end face of the electric push rod (301), and the guiding sliding sleeve (305) is fixed on the rear end face of the electric push rod (301); the retraction control switch (304) is installed on the upper end face of the electric push rod (301), and the electric push rod (301), the retraction control switch (304), the flow sensor (103), and the human body induction switch (5) are all electrically connected to the controller (6).

4. The bathroom thermostatic faucet control handle according to claim 3, characterized in that: When the telescopic rod of the electric push rod (301) drives the driving rack (302) to move downward to the limit position, the driving rack (302) meshes with the gear (203), and the driving rack (302) drives the gear (203), the outer ring of the one-way bearing (202), the inner ring of the one-way bearing (202), the fixed column (201) and the main valve control handle (2) to rotate clockwise by ninety degrees. At this time, the main valve (101) will be in the closed state.

5. The bathroom thermostatic faucet control handle according to claim 3, characterized in that: When the telescopic rod of the electric push rod (301) drives the driving rack (302) to move upward to the limit position, the driving rack (302) is in a separated state from the gear (203).

6. The bathroom thermostatic faucet control handle according to claim 1, characterized in that: The rotation angle of the main valve control handle (2) is ninety degrees. When the upper end of the main valve control handle (2) inclines forward by forty-five degrees, the main valve (101) is in the open state, and when the upper end of the main valve control handle (2) inclines backward by forty-five degrees, the main valve (101) is in the closed state.

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