Anti-false triggering of water head sensor

Abstract

The utility model proposes an anti-false triggering induction water outlet head, including an induction water outlet head, a water outlet channel for discharging water downwards is provided on the induction water outlet head, an installation chamber for installing a sensor is provided on the induction water outlet head, and the induction water outlet head includes a front end face and a lower end face, a downwardly convex water baffle portion is fixed to the lower end of the front end face or the front part of the lower end face, the lower end of the water baffle portion is lower than the front end of the lower end face, and the water baffle portion is used to block the water on the front end face from flowing to the lower end face. The lower end of the front end face of the induction water outlet head of the utility model or the front part of the lower end face is fixed to a downwardly convex water baffle portion, which blocks the water on the front end face from flowing to the lower end face, thereby preventing water droplets from accumulating on the lower end face and falsely triggering the sensor.

Description

Technical Field

[0001] The utility model relates to the field of inductive water heads, in particular to an inductive water head that can prevent mis-triggering. Background Art

[0002] An induction faucet is one that works based on the infrared reflection principle. When a person's hand is placed within the infrared area of ​​the faucet, the infrared emitted by the infrared transmitting tube is reflected to the infrared receiving tube due to the obstruction of the person's hand. The signal processed by the microprocessor in the integrated circuit is sent to the pulse solenoid valve. After receiving the signal, the solenoid valve opens the valve core according to the specified instruction to control the water flow from the faucet. When the person's hand leaves the infrared sensing range, the solenoid valve does not receive the signal, and the solenoid valve core is reset by the internal spring to control the water shut-off of the faucet.

[0003] like Figure 1 The induction faucet mainly consists of a faucet 11 and a sensor head 12 installed on the faucet 11. During use, we found that the front surface 13 of the sensor head 12 is easily splashed with small water droplets, which will slide down to the lower surface 14 of the sensor head 12 and accumulate on the lower surface of the sensor head 12 to form large water droplets. The large water droplets are large in size and stay on the lower surface 14 of the sensor head 12 for a long time, which can easily trigger the sensor in the induction water head for downward sensing of human hands by mistake, causing the induction faucet to open automatically, resulting in a waste of water resources. Utility Model Content

[0004] The utility model provides an anti-false triggering induction water outlet head, which solves the problem that the induction water outlet head in the existing induction faucet is easily triggered by mistake.

[0005] The technical solution of the utility model is achieved in this way:

[0006] The induction water outlet head is provided with an outlet channel for discharging water downward, the induction water outlet head is provided with an installation chamber for installing a sensor, the induction water outlet head includes a front end face and a lower end face, a downwardly convex water baffle portion is fixed to the lower end of the front end face or the front part of the lower end face, the lower end of the water baffle portion is lower than the front end of the lower end face, and the water baffle portion is used to prevent water on the front end face from flowing to the lower end face.

[0007] Furthermore, the water outlet channel includes a water inlet and a water outlet, the water inlet is located at the rear end surface of the sensing water outlet head, and the water outlet is located at the lower end surface of the sensing water outlet head.

[0008] Furthermore, the water outlet is also connected to a bubbler.

[0009] Furthermore, a sensor for downward sensing of human hands is installed in the installation chamber.

[0010] Furthermore, the sensor is an infrared sensor.

[0011] Furthermore, the infrared sensor includes an infrared transmitter and an infrared receiver.

[0012] Furthermore, a second sensor for sensing human hands forward or rightward is installed in the installation chamber. The second sensor is used to control water flow when human hands are sensed for the first time and to control water cut-off when human hands are sensed for the second time. The sensor is used to control water flow when human hands are sensed below and to control water cut-off when there are no human hands.

[0013] Furthermore, the second sensor is an infrared sensor.

[0014] Furthermore, the front end surface of the sensing water outlet head is a vertical surface, and the lower end surface of the sensing water outlet head is an inclined surface which is higher at the front and lower at the back.

[0015] Furthermore, the induction water outlet head is provided with a connecting screw hole for connecting with a faucet.

[0016] Furthermore, the induction water outlet head is a plastic head.

[0017] Beneficial effects of the utility model: a downwardly convex water baffle portion is fixed to the lower end of the front end face or the front part of the lower end face of the sensing water head of the utility model, blocking the water on the front end face from flowing to the lower end face, preventing water droplets from accumulating on the lower end face and falsely triggering the sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 Structural diagram of existing induction faucet;

[0020] Figure 2 It is a front view of Example 1;

[0021] Figure 3 It is a left side view of Example 1;

[0022] Figure 4 for Figure 2 Section view along line AA;

[0023] Figure 5 is a stereogram of Example 1;

[0024] Figure 6 It is a three-dimensional diagram of another angle of Example 1;

[0025] Figure 7 This is a usage status diagram of Example 1;

[0026] Figure 8 It is a left side view of Example 2;

[0027] Fig. 9 is a cross-sectional view of Example 3;

[0028] Fig.10 This is a cross-sectional view of Example 4.

[0029] The reference numbers in the figure are: 11-faucet, 12-sensing head, 13-front surface, 14-lower surface, 2-sensing water outlet head, 21-front end surface, 22-lower end surface, 23-water baffle part, 25-connecting screw hole, 3-water outlet channel, 31-water inlet, 32-water outlet, 4-installation chamber, 5-bubbler, 6-sensor, 7-second sensor. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments 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.

[0031] Example 1

[0032] Reference Figure 2-7 The induction water outlet head for preventing false triggering includes an induction water outlet head 2, on which a water outlet channel 3 for discharging water downward is provided, and on which an installation chamber 4 for installing a sensor is provided. The induction water outlet head 2 includes a front end face 21 and a lower end face 22, and a downwardly convex water baffle portion 23 is fixed at the lower end of the front end face 21, and the lower end of the water baffle portion 23 is lower than the front end of the lower end face 22, and the water baffle portion 23 is used to prevent water on the front end face 21 from flowing to the lower end face 22.

[0033] As a further embodiment, the water outlet channel 3 includes a water inlet 31 and a water outlet 32 ​​, the water inlet 31 is located at the rear end surface of the induction water outlet head 2 , and the water outlet 32 ​​is located at the lower end surface 22 of the induction water outlet head.

[0034] As a further embodiment, the water outlet 32 ​​is further connected to a bubbler 5 .

[0035] As a further embodiment, the front end surface of the induction water outlet head 2 is a vertical surface 21, and the lower end surface 22 of the induction water outlet head 2 is an inclined surface with a high front and a low back. The lower end surface 22 of the induction water outlet head 2 is an inclined surface with a high front and a low back, which can prevent residual water or splashing water from the water outlet from flowing to the front end of the lower end surface 22, and can also prevent accidental touch.

[0036] As a further embodiment, the induction water outlet head 2 is provided with a connecting screw hole 25 for connecting with a faucet.

[0037] As a further embodiment, the induction water outlet head 2 is a plastic head.

[0038] The lower end of the front end face 21 of the induction water outlet head 2 of the utility model is fixed with a downwardly convex water baffle portion 23 to block the water on the front end face 21 from flowing to the lower end face, thereby preventing water drops from accumulating on the lower end face 22 and triggering the sensor by mistake.

[0039] Example 2

[0040] Reference Figure 8 The difference between this embodiment and the first embodiment is that a downwardly convex water baffle portion 23 is fixed to the front portion of the lower end surface 22 of the induction water outlet head 2, and the position of the water baffle portion 23 is different from that of the first embodiment.

[0041] The front part of the lower end surface 22 of the induction water outlet head 2 of the utility model is fixed with a downwardly convex water baffle portion 23 to block the water on the front end surface 21 from flowing to the lower end surface 22, thereby preventing water drops from accumulating on the lower end surface 22 and triggering the sensor by mistake.

[0042] Example 3

[0043] Reference Fig. 9 The difference between this embodiment and the embodiment 1 or the embodiment 2 is that a sensor 6 for downward sensing of a human hand is installed in the installation chamber 4. The sensor 6 can be an infrared sensor. The infrared sensor includes an infrared transmitter and an infrared receiver.

[0044] Example 4

[0045] Reference Fig.10 The difference between this embodiment and the embodiment 3 is that: the second sensor 7 for sensing human hands is also installed in the installation chamber 4. The second sensor 7 is used to control water flow when human hands are sensed for the first time and to control water shutoff when human hands are sensed for the second time; the sensor 6 is used to control water flow when human hands are sensed below and to control water shutoff when no human hands are sensed. The second sensor 7 can be an infrared sensor. The infrared sensor includes an infrared transmitter and an infrared receiver.

[0046] It should also be noted that the water drops splashing onto the front face 21 of the water induction head 2 are all small water drops, and because the front face 21 is a vertical surface, the small water drops will quickly slide downwards and will not accumulate into large water drops, nor will they stay and accumulate. Because the prerequisite for false triggering is that the water drops must be large and stay for a long time, there is no problem of the second sensor 7 being easily touched by water drops when sensing the human hand forward.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Anti-mistriggered water head induction, characterized by: The inductive water outlet head includes a water outlet channel for discharging water downward, an installation chamber for installing a sensor, and the inductive water outlet head includes a front end face and a lower end face. A downwardly convex water baffle portion is fixed to the lower end of the front end face or the front part of the lower end face, the lower end of the water baffle portion is lower than the front end of the lower end face, and the water baffle portion is used to prevent water on the front end face from flowing to the lower end face.

2. The anti-false triggering induction water head according to claim 1, characterized in that: The water outlet channel includes a water inlet and a water outlet. The water inlet is located at the rear end surface of the induction water outlet head, and the water outlet is located at the lower end surface of the induction water outlet head.

3. The anti-false triggering induction water head according to claim 2, characterized in that: The water outlet is also connected with a bubbler.

4. The anti-false triggering induction water head according to claim 1, characterized in that: A sensor for downward sensing of human hands is installed in the installation chamber.

5. The anti-false triggering induction water head according to claim 4, characterized in that: The sensor is an infrared sensor.

6. The anti-false triggering induction water head according to claim 5, characterized in that: The infrared sensor includes an infrared transmitter and an infrared receiver.

7. The anti-false triggering induction water head according to any one of claims 4 to 6, characterized in that: A second sensor for sensing human hands forward or rightward is also installed in the installation chamber. The second sensor is used to control water flow when human hands are sensed for the first time and to control water cut-off when human hands are sensed for the second time. The sensor is used to control water flow when human hands are sensed below and to control water cut-off when no human hands are present.

8. The anti-false triggering induction water head according to claim 7, characterized in that: The front end surface of the induction water outlet head is a vertical surface, and the lower end surface of the induction water outlet head is an inclined surface which is higher at the front and lower at the back.

9. The anti-false triggering induction water head according to claim 1, characterized in that: The induction water outlet head is provided with a connecting screw hole for connecting with a faucet.

10. The anti-false triggering induction water head according to claim 1, characterized in that: The induction water outlet head is a plastic head.

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