CN209977345U

CN209977345U - Constant temperature faucet

Info

Publication number: CN209977345U
Application number: CN201920679400.8U
Authority: CN
Inventors: 杨和军
Original assignee: Jiangmen People's Temperature Control Sanitary Ware Co Ltd
Current assignee: Jiangmen People's Temperature Control Sanitary Ware Co Ltd
Priority date: 2019-05-13
Filing date: 2019-05-13
Publication date: 2020-01-21
Anticipated expiration: 2029-05-13

Abstract

The utility model discloses a constant temperature faucet, which comprises a housin, the casing left side is provided with hot water inlet channel, vertical section and thermostatic valve core, the casing right side is provided with cold water inlet channel, horizontal section and switch valve core, be provided with thermostatic valve core chamber along the axis direction in the vertical section, thermostatic valve core chamber bottom and hot water inlet channel intercommunication, cold water inlet channel is through setting up cold water passageway and thermostatic valve core chamber middle part intercommunication in horizontal section, still be provided with mixed water passageway in the horizontal section, mixed water passageway intercommunication thermostatic valve core chamber front end and switch valve core's mixed water inlet, thermostatic valve core's mixed water export, hot water inlet and cold water inlet all set up and arrange in thermostatic valve core side and top-down. The cold water flow passage and the hot water flow passage in the tap shell can not be crossed, and the temperature adjusting hand wheel can not have higher temperature.

Description

Constant temperature faucet

Technical Field

The utility model relates to a bathroom equipment, in particular to constant temperature faucet.

Background

The constant temperature faucet is a bathroom device for controlling the water outlet temperature and the water outlet flow, and can automatically adjust the mixing ratio of cold water and hot water, so that the water outlet temperature is kept constant, and the constant temperature faucet is more and more widely used. Most of existing thermostatic valve cores are columnar, a cold water inlet and a hot water inlet are arranged on the side faces of the valve core, and a mixed water outlet is arranged on the bottom face of the valve core. Meanwhile, cold and hot water supply pipelines are embedded in a wall body in the industry, the cold and hot water supply pipelines are generally installed in a left-hot and right-cold mode, joints of the hot water pipelines and the cold water pipelines are located at the same height, the joint of the hot water pipeline is located on the left side, and the cold water joint is located on the right side.

Chinese patent No. 201721247285.4 discloses a switch valve core and corresponding tap valve body and corresponding tap, the tap switch valve core is located at the right end of the tap, and the thermostatic valve core is located at the left end of the tap. The setting can facilitate the use like this, can not adjust outlet water temperature again basically after generally setting outlet water temperature, but the in-process user of bathing can often adjust the delivery port of mixed water, and most people are in the custom and use the right hand in daily life, and the switch case is located tap right side and accords with most users' operation custom. In order to avoid the condition that a cold water channel and a hot water channel in the faucet are crossed and bring convenience to the license of the faucet body, the hot water inlet of the thermostatic valve core is close to the upper end of the thermostatic valve core, and the cold water inlet is positioned below the hot water inlet, so that the condition that the cold water channel and the hot water channel in the faucet shell are crossed when a common thermostatic valve core is used is avoided (the cold water inlet of the common thermostatic valve core is close to the upper end of the thermostatic valve core, and the hot water inlet is positioned at the lower end of the cold water inlet). Therefore, the problem of crossing of internal flow channels of the faucet is solved, hot water enters the upper end of the thermostatic valve element, the upper end of the thermostatic valve element is connected with the handle, heat at the upper end of the thermostatic valve element is transferred to the temperature adjusting handle in the actual use process, and scalding accidents are easily caused when a user contacts the temperature adjusting handle.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a constant temperature faucet, the cold water runner can not take place alternately with the hot water runner in the tap shell, can not make the hand wheel that adjusts the temperature have higher temperature simultaneously.

The above technical purpose of the present invention can be achieved by the following technical solutions: a constant temperature faucet comprises a shell, wherein a hot water inlet channel is arranged on the left side of the shell, a cold water inlet channel is arranged on the right side of the shell, a constant temperature valve core is arranged on the left side of the shell, a switch valve core is arranged on the right side of the shell, the shell comprises a longitudinal section and a transverse section, a constant temperature valve core cavity is arranged in the longitudinal section along the axis direction, the bottom of the constant temperature valve core cavity is communicated with the hot water inlet channel, the cold water inlet channel is communicated with the middle part of the constant temperature valve core cavity through a cold water channel arranged in the transverse section, a mixed water channel is also arranged on the transverse section and is communicated with the mixed water inlet of the switch valve core and the front end of the constant temperature valve core cavity, the mixed water outlet, the hot water inlet and the cold water inlet of the constant temperature valve core are all arranged on the side surface, the mixed water outlet is communicated with the mixed water inlet of the switch valve core through a mixed water channel, and the first water outlet of the switch valve core is communicated with the first water outlet channel on the shell.

Through the technical scheme, the thermostatic valve core cavity is arranged in the longitudinal section, so that the hot water channel can be directly communicated with the bottom of the thermostatic valve core cavity, hot water can directly enter the thermostatic valve core, and the integral structure of the shell is simplified. The setting of horizontal section for cold water passageway and mixed water passageway can transversely set up side by side, thereby communicate the cold water inlet and the mixed water export of thermostatic cartridge respectively. Because thermostatic cartridge and horizontal section vertical setting to make cold water passageway and mixed water passageway can not take place alternately when intercommunication cold water import and mixed water import, thereby be convenient for process. In addition, the mixed water outlet is located the thermostatic cartridge upper end, and the temperature of thermostatic cartridge upper end can not be too high, has avoided on the heat transfer leads to adjusting the temperature on the hand wheel also to have higher temperature, takes place the scald when leading to the user to touch.

Preferably, a first sealing convex ring and a second sealing convex ring are arranged on the side face of the thermostatic valve core, the first sealing convex ring is located between a hot water inlet and a cold water inlet of the thermostatic valve core, the second sealing convex ring is arranged between the hot water inlet and a mixed water outlet, a first sealing seat is arranged between the bottom of a thermostatic valve core cavity and the middle of the thermostatic valve core cavity, a second sealing seat is arranged between the middle of the thermostatic valve core cavity and the front end of the thermostatic valve core cavity, the first sealing convex ring is in sealing fit with the first sealing seat, and the second sealing convex ring is in sealing fit with the second sealing seat.

Through above-mentioned technical scheme, the setting up of sealed bulge loop and seal receptacle can be better to carrying out the interval between the different water routes, avoids taking place to leak between the different water routes, influences the use.

Preferably, the thermostatic valve core comprises a piston, a temperature sensing element, a handle and a temperature adjusting slide seat, the temperature sensing element is positioned between the temperature adjusting slide seat and the piston, and a return spring is arranged below the piston.

Through the technical scheme, the temperature sensing element is positioned between the piston and the temperature adjusting slide seat, and when cold water and hot water flow upwards, the temperature sensing element expands with heat and contracts with cold under the action of the water temperature at the position, so that the mixing ratio of the cold water and the hot water is automatically adjusted, and the constancy of the water outlet temperature is ensured.

Preferably, the temperature sensing element is a bulb using paraffin as a temperature sensing material; or the temperature sensing element is a temperature sensing spring made of memory alloy.

Through the technical scheme, the temperature bulb is a temperature sensing element which is universal in the water heating industry, the performance is stable, the cost is low, and the reliability is good. The temperature sensing spring made of the memory alloy has the advantages of simple structure, convenience in installation and more sensitive temperature sensing.

Preferably, a switch valve core cavity is formed in the end portion of the transverse section in the axis direction, a mixed water inlet of the switch valve core is formed in the side face of the switch valve core, a first communication channel is further formed in the transverse section, one end of the first communication channel is communicated with a first water outlet of the switch valve core cavity, and the other end of the first communication channel is communicated with a first water outlet channel.

Through the technical scheme, the switch valve core and the switch valve core cavity are arranged in such a way that mixed water can be conveniently controlled through the switch valve core, and meanwhile, the communicating channel inside the shell can be simpler and is convenient to process.

Preferably, the switch valve further comprises a water outlet channel II and a communication channel II, one end of the communication channel II is communicated with the water outlet channel II on the bottom surface of the switch valve core, and the other end of the communication channel II is communicated with the water outlet channel II.

Through above-mentioned technical scheme, can set up two water outlet flow channels on the casing, control two water outlet flow channel's play water through switch valve core simultaneously.

Preferably, the first communication channel and the second communication channel are positioned in the middle of the transverse section, the first communication channel and the second communication channel are arranged in an overlapping mode, and the cold water channel and the mixed water channel are respectively positioned on two sides of the first communication channel and the second communication channel.

Through the technical scheme, the first communication channel and the second communication channel are arranged to be not crossed with the cold water channel and the mixed water channel, and the processing is convenient.

Preferably, the first water outlet channel is provided with an opening at the upper end of the shell, and the second water outlet channel is provided with an opening at the lower end of the shell.

Preferably, check valves are arranged on the cold water inlet channel and the hot water inlet channel.

Through the technical scheme, the check valve can prevent cold water and hot water from mixing under the condition of pressure difference.

Compared with the prior art, the beneficial effects of the utility model are that: through the setting of horizontal section and vertical section, and set up the thermostatic cartridge chamber that sets up along vertical section axis direction in vertical section, make the cold water import and the mixed water export of thermostatic cartridge chamber stagger forward by the back at the horizontal plane, make the cold water passageway, the mixed water passageway can set up side by side in horizontal section, thereby avoid taking place the runner alternately in the casing, make things convenient for the processing of casing, the mixed water export sets up in the thermostatic cartridge upper end simultaneously, make thermostatic cartridge upper end temperature can not be too high, the handle temperature that adjusts the temperature of being connected with thermostatic cartridge upper end simultaneously also can not be too high, avoid taking place the scald accident.

Drawings

FIG. 1 is an exploded view of an embodiment;

FIG. 2 is a schematic view of a transverse cross-section of the housing;

FIG. 3 is a schematic cross-sectional view taken at A-A of FIG. 2;

FIG. 4 is a cross-sectional schematic view of a thermostatic cartridge;

FIG. 5 is a perspective view of the switch spool;

fig. 6 is a perspective view of a case switch valve core cavity.

Reference numerals: 1. a housing; 2. a hot water inlet passage; 3. a cold water inlet channel; 4. a thermostatic valve core; 5. a switch valve core; 6. a longitudinal segment; 7. a transverse segment; 8. a thermostatic valve core cavity; 9. a cold water passage; 10. a mixed water passage; 11. the bottom of the thermostatic valve core cavity; 12. the middle part of the constant temperature valve core cavity; 13. the front end of the thermostatic valve core cavity; 14. a mixed water outlet; 15. a cold water inlet; 16. a hot water inlet; 17. a first water outlet channel; 18. a mixed water inlet; 19. a first water outlet; 20. a first sealing convex ring; 21. a second sealing convex ring; 22. a first sealing seat; 23. a second sealing seat; 24. a piston; 25. a temperature sensing element; 26. a temperature adjusting slide seat; 27. a handle; 28. a return spring; 29. a switch valve core cavity; 30. a first communication channel; 31. a second communication channel; 32. a second water outlet channel; 33. a non-return valve; 34. a water outlet II; 35. a gland; 36. positioning holes; 37. and a positioning column.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

The utility model provides a thermostatic valve core, includes

casing

1, and 1 left side of casing is

vertical section

6, and 6 middle parts in vertical section are connected with horizontal section 7, and the perpendicular wall setting of vertical section 6, the parallel wall setting of horizontal section 7. The rear end of the longitudinal section 6 is provided with a hot water inlet channel 2, and the side surface of the end part of the transverse section 7 is provided with a cold water inlet channel 3. The hot water inlet passage 2 is connected to a hot water supply pipe to introduce hot water into the case 1, and the cold water inlet passage 3 is connected to a cold water supply pipe to introduce cold water into the case 1. A thermostatic valve core 4 is arranged in the longitudinal section 6, and a switch valve core 5 is arranged at the end part of the transverse section 7.

The front end of the longitudinal section 6 is provided with a thermostatic valve core cavity 8 along the axis direction, and the thermostatic valve core 4 is arranged in the thermostatic valve core cavity 8. The bottom 11 of the thermostatic valve core cavity is communicated with the hot water inlet channel 2, and hot water directly enters the bottom 11 of the thermostatic valve core cavity through the hot water inlet channel 2. The back of the transverse section 7 is provided with a cold water channel 9, the cold water channel 9 is communicated with a cold water inlet channel 3 and the middle part 12 of the thermostatic valve core cavity, the front of the transverse section 7 is provided with a mixed water channel 10, one end of the mixed water channel 10 is communicated with the front end 13 of the thermostatic valve core cavity, and the other end of the mixed water channel is communicated with a mixed water inlet 18 of the switch valve core 5. The side surface of the thermostatic valve core 4 is provided with a hot water inlet 16, a cold water inlet 15 and a mixed water outlet 14, the cold water inlet 15 and the hot water inlet 16 are arranged at intervals from the upper end of the thermostatic valve core 4 to the lower end of the thermostatic valve core 4, and the mixed water inlet 18 is close to a handle 27 of the thermostatic valve core 4. When the thermostatic valve core 4 is installed in the thermostatic valve core cavity 8, the hot water inlet 16 is located at the bottom 11 of the thermostatic valve core cavity, the cold water inlet 15 is located at the middle 12 of the thermostatic valve core cavity, and the mixed water outlet 14 is located at the front end 13 of the thermostatic valve core cavity. Hot water can enter a hot water inlet 16 of the thermostatic valve core 4 after entering the bottom 11 of the thermostatic valve core cavity, cold water can enter a cold water inlet 15 of the thermostatic valve core 4 through the cold water channel 9, and mixed water mixed in the thermostatic valve core 4 can enter a mixed water inlet 18 of the switch valve core 5 through the mixed water channel 10.

A first sealing convex ring 20 is arranged between a cold water inlet 15 and a hot water inlet 16 of the thermostatic valve core 4, a second sealing convex ring 21 is arranged between the cold water inlet 15 and a mixed water outlet 14, a first sealing seat 22 is arranged between the bottom 11 of the thermostatic valve core cavity and the middle 12 of the thermostatic valve core cavity, a second sealing seat 23 is arranged between the middle 12 of the thermostatic valve core cavity and the front end 13 of the thermostatic valve core cavity, the first sealing seat 22 is in sealing fit with the first sealing convex ring 20, and the second sealing seat 23 is in sealing fit with the second sealing convex ring 21. And sealing ring grooves are also formed in the first sealing convex ring 20 and the second sealing convex ring 21, and sealing rings are installed in the sealing ring grooves. The arrangement of the sealing convex ring and the sealing seat can prevent the water mixing between the hot water in the bottom 11 of the thermostatic valve core cavity and the cold water in the middle 12 of the thermostatic valve core cavity, and the water mixing between the cold water in the middle 12 of the thermostatic valve core cavity and the mixed water at the front end 13 of the thermostatic valve core cavity from affecting the temperature adjusting effect of the thermostatic valve core 4.

The switch valve core 5 is fixed in the switch valve core cavity 29 through a gland 35, and the side surface of the gland 35 is provided with threads and is connected with the end part of the switch valve core cavity 29 through the threads. The mixed water inlet 18 of the switch valve core 5 is arranged on the side surface of the switch valve core 5, a gap is arranged between the inner wall of the switch valve core cavity 29 and the outer side surface of the switch valve core 5, and the mixed water in the mixed water channel 10 can enter the mixed water inlet 18 on the side surface of the switch valve core 5 through the gap. The bottom surface of the switch valve core cavity 29 is provided with a positioning hole 36, the bottom surface of the switch valve core 5 is provided with a positioning column 37, and the positioning column 37 is inserted into the positioning hole 36, so that the circumferential position of the switch valve core 5 in the switch valve core cavity 29 is fixed. A first communication channel 30 and a second communication channel 31 are arranged between the cold water channel 9 and the mixed water channel 10 at the right end of the transverse section 7, the first communication channel 30 and the second communication channel 31 are arranged in an overlapping mode, and the first communication channel 30 is located above the second communication channel 31. The corresponding first water outlet channel 17 is positioned above the shell 1, the first water outlet channel 17 is communicated with the first communication channel 30, the second water outlet channel 32 is positioned below the shell 1, and the second water outlet channel 32 is communicated with the second water outlet channel 32. The other ends of the first communication channel 30 and the second communication channel 31 communicate with the switch spool cavity 29 from the bottom surface of the switch spool cavity 29. Two water outlets, namely a first water outlet 19 and a second water outlet 34, are arranged on the bottom surface of the switch valve core 5, the first water outlet 19 is communicated with the end part of the first communication channel 30, and the second water outlet 34 is communicated with the end part of the second communication channel 31. The switch valve core 5 has three states, namely a closed state, a water outlet state of the first water outlet 19 and a water outlet state of the second water outlet 34, and can be switched among the three different states by rotating the handle 27 of the switch valve core 5. The switch valve core 5 is commonly used in the water heating industry, can be directly purchased and obtained from the market, and the specific structure of the switch valve core is not repeated. The handle 27 of the switch valve core 5 is sleeved with a hand wheel, so that the handle 27 of the switch valve core 5 is convenient to rotate.

In addition, check valves 33 are installed in the cold water inlet passage 3 and the hot water inlet passage 2, and the check valves 33 prevent the reverse flow of water, i.e., the flow from the inside of the housing 1 to the inside of the water supply pipe. If no check valve 33 is arranged, when the pressure of cold water is greater than that of hot water, and the switch valve core 5 is in a closed state, cold water in the cold water supply pipeline can flow to the hot water supply pipeline through the thermostatic valve core 4, so that water mixing occurs, and when the switch valve core 5 is opened again, cold water flows out of the hot water pipeline and influences use. Correspondingly, when switch case 5 was in the closed condition, when hot water supply pressure was greater than cold water supply pressure, hot water can flow in to the cold water supply pipe through thermostatic cartridge 4, can lead to hot water extravagant like this on the one hand, on the other hand causes the user easily to scald when opening switch case 5 once more. The check valve is also a relatively common component in the industry, and the specific structure thereof is not described herein.

The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention, which is defined by the appended claims.

Claims

1. The utility model provides a constant temperature faucet, includes casing (1), and casing (1) left side is provided with hot water inhalant canal (2), and casing (1) right side is provided with cold water inhalant canal (3), and thermostatic cartridge (4) are installed in casing (1) left side, and switch case (5), characterized by are installed on casing (1) right side: the shell (1) comprises a longitudinal section (6) and a transverse section (7), a thermostatic valve core cavity (8) is arranged in the longitudinal section (6) along the axis direction, the bottom (11) of the thermostatic valve core cavity is communicated with a hot water inlet channel (2), a cold water inlet channel (3) is communicated with the middle part (12) of the thermostatic valve core cavity through a cold water channel (9) arranged in the transverse section (7), a mixed water channel (10) is also arranged on the transverse section (7), the mixed water channel (10) is communicated with the front end (13) of the thermostatic valve core cavity and a mixed water inlet (18) of the switch valve core (5), a mixed water outlet (14), a hot water inlet (16) and a cold water inlet (15) of the thermostatic valve core (4) are all arranged on the side surface of the thermostatic valve core (4) from top to bottom, the cold water channel (9) is communicated with the cold water inlet (15) of the thermostatic valve core (4), and the hot water inlet channel (2) is communicated with the hot water inlet (16), the mixed water outlet (14) is communicated with a mixed water inlet (18) of the switch valve core (5) through a mixed water channel (10), and a first water outlet (19) of the switch valve core (5) is communicated with a first water outlet channel (17) on the shell (1).

2. A thermostatic faucet as defined in claim 1, wherein: a first sealing convex ring (20) and a second sealing convex ring (21) are arranged on the side face of the thermostatic valve core (4), the first sealing convex ring (20) is located between a hot water inlet (16) and a cold water inlet (15) of the thermostatic valve core (4), the second sealing convex ring (21) is arranged between the hot water inlet (16) and a mixed water outlet (14), a first sealing seat (22) is arranged between the bottom (11) of a thermostatic valve core cavity and the middle (12) of the thermostatic valve core cavity, a second sealing seat (23) is arranged between the middle (12) of the thermostatic valve core cavity and the front end (13) of the thermostatic valve core cavity, the first sealing convex ring (20) is in sealing fit with the first sealing seat (22), and the second sealing convex ring (21) is in sealing fit with the second sealing seat (23).

3. A thermostatic faucet as defined in claim 1, wherein: the thermostatic valve core (4) comprises a piston (24), a temperature sensing element (25), a handle (27) and a temperature adjusting slide seat (26), wherein the temperature sensing element (25) is positioned between the temperature adjusting slide seat (26) and the piston (24), and a return spring (28) is arranged below the piston (24).

4. A thermostatic faucet as defined in claim 3, wherein: the temperature sensing element (25) is a thermometer bulb using paraffin as a temperature sensing material; or the temperature sensing element (25) is a temperature sensing spring made of memory alloy.

5. A thermostatic faucet as defined in claim 1, wherein: a switch valve core cavity (29) is formed in the end portion of the transverse section (7) in the axis direction, a mixed water inlet (18) of the switch valve core (5) is formed in the side face of the switch valve core (5), a first communication channel (30) is further arranged in the transverse section (7), one end of the first communication channel (30) is communicated with a first water outlet (19) of the switch valve core cavity (29), and the other end of the first communication channel is communicated with a first water outlet channel (17).

6. A thermostatic faucet as defined in claim 5, wherein: and the water outlet device also comprises a second water outlet channel (32) and a second communication channel (31), one end of the second communication channel (31) is communicated with a second water outlet (34) on the bottom surface of the switch valve core (5), and the other end of the second communication channel is communicated with the second water outlet channel (32).

7. A thermostatic faucet as defined in claim 6, wherein: the first communication channel (30) and the second communication channel (31) are positioned in the middle of the transverse section (7), the first communication channel (30) and the second communication channel (31) are arranged in an overlapping mode, and the cold water channel (9) and the mixed water channel (10) are respectively positioned on two sides of the first communication channel (30) and the second communication channel (31).

8. A thermostatic faucet as defined in claim 7, wherein: the opening of the first water outlet channel (17) is positioned at the upper end of the shell (1), and the opening of the second water outlet channel (32) is positioned at the lower end of the shell (1).

9. A thermostatic faucet as defined in claim 1, wherein: check valves (33) are arranged on the cold water inlet channel (3) and the hot water inlet channel (2).