CN211501746U

CN211501746U - Water temperature adjusting valve core of constant temperature faucet

Info

Publication number: CN211501746U
Application number: CN201922339936.8U
Authority: CN
Inventors: 王灵勇; 陈杰; 陈世亮; 张佳奇
Original assignee: Hangzhou Boda Design Consulting Co ltd
Current assignee: Hangzhou Boda Design Consulting Co ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-09-15
Anticipated expiration: 2029-12-24

Abstract

The utility model discloses a constant temperature tap's temperature adjusting valve core, temperature adjusting valve core include valve rod and hollow axis body, hollow axis body is rotatable to be set up in leading casing's case cover, and case sheathed tube top is equipped with the hot water square hole that communicates with hot water passageway side by side along the axial, with the cold water square hole of cold water passageway intercommunication, and the cavity upper portion of hollow axis body is equipped with along the hot water square hole that the axial corresponds with hot water square hole and the cold water square hole that corresponds with cold water square hole along the axial, the hot water square hole of intaking sets up with cold water square hole along circumferencial direction dislocation, and the right-hand member of cavity communicates with each other with the mixed water chamber of hot and cold water. The utility model discloses a temperature adjusting valve core of thermostatic faucet, hot water and cold water that can realize getting into the cavity are linear and the increase or the reduction of equal proportion, and it is accurate, quick to adjust the temperature.

Description

Water temperature adjusting valve core of constant temperature faucet

Technical Field

The utility model relates to a tap's temperature adjusting valve core.

Background

The invention patent of the Chinese patent with the patent number of 200510040756.X discloses an intelligent temperature control water mixing faucet, which comprises a faucet shell 1 with a cold water inlet port 2, a hot water inlet port 3 and a water mixing outlet 4, a valve core 5 at the junction of cold water and hot water inlet channels in the faucet shell 1, a motor 6, a temperature measuring sensing element 9 and a control driving circuit, wherein a valve rod of the valve core 5 is connected with the motor 6. However, the technical solution of the invention still has the following defects:

the valve core is the existing universal valve core, when the motor 6 is rotated and adjusted, the water inflow of cold water and hot water is increased or reduced in a nonlinear way, and the accuracy and the speed of water mixing temperature control are influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a constant temperature tap's temperature adjustment case can realize that the hot water and the cold water that get into the cavity are linear and the increase of equal proportion or reduce, and it is accurate, quick to adjust the temperature.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a temperature regulation case of constant temperature tap, temperature regulation case include valve rod and hollow axis body, the hollow axis body is rotatable to be set up in the case cover of leading casing, and case sheathed tube top is equipped with the hot water square hole that communicates with hot water passageway, the cold water square hole that communicates with cold water passageway side by side along the axial, and the cavity upper portion of hollow axis body is equipped with the hot water square hole of intaking that corresponds with hot water square hole along the axial and the cold water square hole of intaking that corresponds with cold water square hole along the axial, the hot water square hole of intaking sets up with cold water square hole along the circumferencial direction dislocation, and the right-hand member and the cold water mixing chamber of cavity communicate with each other.

And sealing rings are arranged at two ends of the hollow shaft body.

The end of the tap shell is fixedly provided with a positioning frame, the positioning frame is provided with a through hole used for penetrating through the valve rod, the upper part of the through hole is provided with a positioning notch, a positioning pin is arranged at the position, corresponding to the positioning notch, on the valve rod, when the water temperature adjusting valve core rotates forwards and backwards, the positioning pin swings in the positioning notch, and the positioning notch is used for limiting the rotation angle of the water temperature adjusting valve core.

The thermostatic faucet comprises a faucet shell, a cold water inlet connector and a hot water inlet connector, a cold water and hot water mixing cavity and a mixed water outlet, wherein a water temperature adjusting valve core is arranged at the water inlet of the cold water and hot water mixing cavity, and a valve rod of the water temperature adjusting valve core is in transmission connection with a motor through a clutch.

The clutch includes: the clutch comprises a first clutch disc fixedly connected to a motor rotating shaft and a second clutch disc connected to a valve rod in an axially sliding mode, wherein a spring used for pushing the second clutch disc to the first clutch disc is arranged on the valve rod, inclined teeth are radially arranged on the end face of the first clutch disc and the end face of the second clutch disc, the first clutch disc and the second clutch disc are meshed through the inclined teeth, when the torque force of a motor is larger than the surface friction force meshed with the inclined teeth, the second clutch disc overcomes the elastic force of the spring to axially move away from the first clutch disc, and the clutch is disengaged.

The valve rod is provided with a shaft notch surface, and the central hole of the second disc of the clutch is provided with a circular notch surface matched with the shaft notch surface, so that the valve rod and the second disc of the clutch rotate synchronously.

A temperature sensor is arranged in the cold and hot water mixing cavity, and the temperature sensor and the motor are electrically connected with the electric control device through corresponding leads.

The lower part of the positioning frame is provided with a support used for fixing the microswitch, the second disc of the clutch is provided with a boss, and when the boss touches the microswitch, the microswitch sends an electric signal that the water temperature adjusting valve core is positioned at the initial position to the electric control device.

Pressure balance valves are arranged between the hot water channel and the hot water square hole and between the cold water channel and the cold water square hole 3-2, and a mixed water impact block is arranged in the cold and hot water mixing cavity and is right opposite to the right end of the cavity.

Compared with the prior art, the beneficial effects of the utility model are that: due to the adoption of the technical scheme, the top of the valve core sleeve is provided with the hot water square hole communicated with the hot water channel and the cold water square hole communicated with the cold water channel side by side along the axial direction, the upper part of the cavity of the hollow shaft body is provided with the hot water square hole corresponding to the hot water square hole along the axial direction and the cold water square hole corresponding to the cold water square hole along the axial direction, the hot water square hole and the cold water square hole are arranged along the circumferential direction in a staggered manner, and the square hole structure can realize that hot water and cold water entering the cavity are linearly increased or reduced in equal proportion through positive and negative rotation of the water temperature adjusting valve core, so that the set water temperature can be accurately and quickly adjusted, and only hot water or only cold water can be adjusted.

The further beneficial effects are that: the valve rod of the water temperature adjusting valve core is in transmission connection with the motor through the clutch, and the structure can prevent the motor from blocking rotation to damage the valve or the motor as long as the preset clutch is disengaged under large torsion. The clutch with the structure has the advantages that the structure is simple, the size is small, and the torque (torque) of the clutch can be adjusted by adjusting the angle of the helical teeth or the elastic force of the spring.

Drawings

FIG. 1 is a schematic view of the present invention installed in a faucet housing;

FIG. 2 is a sectional view taken along line A-A of FIG. 1;

FIG. 3 is a sectional view taken along line B-B of FIG. 1;

FIG. 4 is a cross-sectional view taken along line C-C of FIG. 1

FIG. 5 is a schematic illustration of the disassembled structure of FIG. 1;

FIG. 6 is a schematic view of the positioning frame of FIG. 5;

FIG. 7 is a schematic view of the positioning notch of FIG. 6;

fig. 8 is a schematic diagram of the split structure of the clutch and the present invention shown in fig. 5.

Detailed Description

In order to make the technical solution of the present invention clearer, the following describes the present invention in detail with reference to fig. 1 to 8. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

The utility model relates to a water temperature regulating valve core of a constant temperature tap, a water temperature regulating valve core 6 comprises a valve rod and a hollow shaft body 6-3, the hollow shaft body 6-3 is rotatably arranged in a valve core sleeve 06 of the faucet shell 00, the top of the valve core sleeve 06 is provided with a hot water square hole 3-1 communicated with a hot water channel 07 and a cold water square hole 3-2 communicated with a cold water channel 08 in parallel along the axial direction, the upper part of a cavity 6-4 of the hollow shaft body 6-3 is provided with a hot water inlet square hole 2-1 corresponding to the hot water square hole 3-1 along the axial direction and a cold water inlet square hole 2-2 corresponding to the cold water square hole 3-2 along the axial direction, the hot water inlet square hole 2-1 and the cold water inlet square hole 2-2 are arranged in a staggered mode along the circumferential direction, and the right end of the cavity 6-4 is communicated with the cold and hot water mixing cavity 03.

Preferably, the two ends of the hollow shaft body 6-3 are provided with sealing rings 6-5. The end part of the tap shell 00 is fixedly provided with a positioning frame 9, the positioning frame 9 is provided with a through hole for penetrating through the valve rod, the upper part of the through hole is provided with a positioning notch 9-1, the valve rod is provided with a positioning pin 7 at the position corresponding to the positioning notch 9-1, when the water temperature adjusting valve core 6 rotates forwards and backwards, the positioning pin 7 swings in the positioning notch 9-1, and the positioning notch 9-1 is used for limiting the rotation angle of the water temperature adjusting valve core 6. The thermostatic faucet comprises a faucet shell 00, a cold water inlet port 01 and a hot water inlet port 02, a cold and hot water mixing cavity 03 and a mixed water outlet 04, wherein a water temperature adjusting valve core 6 is arranged at a water inlet of the cold and hot water mixing cavity 03, and a valve rod of the water temperature adjusting valve core 6 is in transmission connection with a motor 2 through a clutch. The clutch includes: the clutch device comprises a first clutch disk 3 fixedly connected to a rotating shaft of a motor 2 and a second clutch disk 4 connected to a valve rod in an axially sliding mode, wherein a spring 5 used for pushing the second clutch disk 4 to the first clutch disk 3 is arranged on the valve rod, inclined teeth are radially arranged on the end face of the first clutch disk 3 and the end face of the second clutch disk 4, the first clutch disk 3 and the second clutch disk 4 are meshed through the inclined teeth, when the torsion of the motor 2 is larger than the surface friction force meshed by the inclined teeth, the second clutch disk 4 overcomes the elastic force of the spring 5 to axially move away from the first clutch disk 3, and the clutch is disengaged. With the structure, as long as the preset clutch is disengaged under large torsion, the motor can be prevented from blocking rotation to damage the valve or the motor. The torque of the clutch can be adjusted by adjusting the angle of the helical teeth or the elasticity of the spring.

Preferably, a speed reducer 1 may be further provided between the motor 2 and the valve stem. The valve rod is provided with a shaft notch surface 6-1, and the central hole of the second disc 4 of the clutch is provided with a circular notch surface matched with the shaft notch surface 6-1, so that the valve rod and the second disc 4 of the clutch rotate synchronously. The principle is basically the same as ZL200510040756.X, and is not described herein any more. The lower part of the positioning frame 9 is provided with a support 9-2 for fixing the micro switch 8, the second disc 4 of the clutch is provided with a boss 4-1, and when the boss 4-1 touches the micro switch 8, the micro switch 8 sends an initial position electric signal to the electric control device when the water temperature adjusting valve core 6 is positioned.

As still further preferred embodiments: pressure balance valves 09 are arranged between the hot water channel 07 and the hot water square hole 3-1 and between the cold water channel 08 and the cold water square hole 3-2, a mixed water impact block 05 is arranged in the cold and hot water mixing cavity 03, and the mixed water impact block 05 is opposite to the right end of the cavity 6-4, so that cold water and hot water flowing out of the right end of the cavity 6-4 are fully mixed when colliding with the mixed water impact block 05.

Claims

1. The utility model provides a temperature regulation case of constant temperature tap which characterized in that: the water temperature adjusting valve core (6) comprises a valve rod and a hollow shaft body (6-3), the hollow shaft body (6-3) is rotatably arranged in a valve core sleeve (06) of the faucet shell (00), a hot water square hole (3-1) communicated with a hot water channel (07) and a cold water square hole (3-2) communicated with a cold water channel (08) are arranged at the top of the valve core sleeve (06) side by side along the axial direction, a hot water inlet square hole (2-1) corresponding to the hot water square hole (3-1) along the axial direction and a cold water inlet square hole (2-2) corresponding to the cold water square hole (3-2) along the axial direction are arranged at the upper part of a cavity (6-4) of the hollow shaft body (6-3), the hot water inlet square hole (2-1) and the cold water inlet square hole (2-2) are arranged along the circumferential direction in a staggered manner, and the right end of the cavity (6-4) is communicated with the cold and hot water mixing cavity (03).

2. The cartridge for regulating the temperature of water of a thermostatic faucet according to claim 1, characterized in that: two ends of the hollow shaft body (6-3) are provided with sealing rings (6-5).

3. The cartridge for regulating the temperature of water of a thermostatic faucet according to claim 2, characterized in that: the end part of the tap shell (00) is fixedly provided with a positioning frame (9), the positioning frame (9) is provided with a through hole for penetrating through the valve rod, the upper part of the through hole is provided with a positioning notch (9-1), a positioning pin (7) is arranged at the position, corresponding to the positioning notch (9-1), on the valve rod, when the water temperature adjusting valve core (6) rotates forwards and backwards, the positioning pin (7) swings in the positioning notch (9-1), and the positioning notch (9-1) is used for limiting the rotation angle of the water temperature adjusting valve core (6).

4. A water temperature regulating valve cartridge of a thermostatic faucet of claim 3, characterized in that: the thermostatic faucet comprises a faucet shell (00), a cold water inlet connector (01) and a hot water inlet connector (02), a cold and hot water mixing cavity (03) and a mixed water outlet (04), wherein a water temperature adjusting valve core (6) is arranged at a water inlet of the cold and hot water mixing cavity (03), and a valve rod of the water temperature adjusting valve core (6) is in transmission connection with a motor (2) through a clutch.

5. The water temperature regulating valve cartridge of a thermostatic faucet of claim 4, wherein the clutch includes: the clutch comprises a first clutch disc (3) fixedly connected to a rotating shaft of a motor (2), and a second clutch disc (4) connected to a valve rod in an axially sliding mode, wherein a spring (5) used for pushing the second clutch disc (4) to the first clutch disc (3) is arranged on the valve rod, inclined teeth are radially arranged on the end face of the first clutch disc (3) and the end face of the second clutch disc (4), the first clutch disc (3) and the second clutch disc (4) are meshed through the inclined teeth, when the torsion of the motor (2) is larger than the surface friction force meshed with the inclined teeth, the second clutch disc (4) overcomes the elastic force of the spring (5) and axially moves away from the first clutch disc (3), and the clutch is disengaged.

6. The water temperature regulating valve core of the thermostatic faucet as recited in claim 5, characterized in that the valve rod is provided with a shaft absent surface (6-1), and the central hole of the second disc (4) of the clutch is provided with a circular absent surface matched with the shaft absent surface (6-1) so that the valve rod and the second disc (4) of the clutch rotate synchronously.

7. The cartridge for regulating the temperature of water of a thermostatic faucet according to claim 6, characterized in that: a temperature sensor (11) is arranged in the cold and hot water mixing cavity (03), and the temperature sensor (11) and the motor (2) are electrically connected with an electric control device through corresponding leads.

8. The cartridge for regulating the temperature of water of a thermostatic faucet of claim 7, wherein: the lower part of the positioning frame (9) is provided with a support (9-2) for fixing the microswitch (8), the second disc (4) of the clutch is provided with a boss (4-1), and when the boss (4-1) touches the microswitch (8), the microswitch (8) sends a water temperature regulating valve core (6) to the electric control device to be positioned at an initial position electric signal.

9. The water temperature regulating valve core of the thermostatic faucet as claimed in claim 4, characterized in that pressure balance valves (09) are arranged between the hot water passage (07) and the hot water square hole (3-1) and between the cold water passage (08) and the cold water square hole 3-2, and a water mixing impact block (05) is arranged in the cold and hot water mixing cavity (03), wherein the water mixing impact block (05) is opposite to the right end of the cavity (6-4).